Injection molding machine manufacturing enterprises should be considered green

source:http://injection-molding-machine.tayu.cn/injection_molding_machine/461.html
    Injection molding machine manufacturer will continue towards automation, energy, intelligence, unmanned other direction. "At present, China's annual imports from Japan, the United States, Germany and other developed countries, precision plastic injection molding equipment nearly $ 2 billion, and imports increased year by year, especially for the processing of precision plastic products, precision injection molding machine. At the same time, our country also encouraged to plastic injection molding equipment enterprises to develop high value-added, high-tech, low-power products, improve the international competitiveness of the industry. "

    China's first self-produced by injection molding machine can be traced back to the 1950s. In 50 years of development, the country has been able to produce most of the models, and to large, very large injection molding machine extends. According to incomplete statistics, China now has 546 domestic manufacturers of plastic machinery, injection molding machines annual accounts for 62.97% of the world's annual production of injection molding machine, the next few years the industry will continue to grow at a CAGR of 7.43%. In recent years, along with well-known international companies to deepen joint ventures and technical cooperation, as well as international preclude the purchase way mechanical parts of the master, China has become the world's superpower presses pieces of production.

    This year is the "five-second" wrap, plastic products market increasingly demanding "green wisdom made" has become a strong tone of the times. From the industry perspective, after several rounds of technical and environmental policies eliminated, the market active injection molding machine manufacturers are very focused on developing a new generation of high-tech equipment, through intelligent control, to meet the current requirements for the production of high-precision. Conventional injection molding machine with a hydraulic drive, with environmental pollution, high noise and energy consumption of the features, such injection molding machines not only serious energy loss, the larger the negative factors still exist on the environment. But its low manufacturing costs, maintenance is also more convenient, therefore, is the highest market share of injection molding machine type.

    However, reporters from shortly before the Chinaplas (Chinaplas China) informed that 80% of the mainstream of injection molding machines are fitted with energy-saving auxiliary equipment, low energy consumption from heating coil servo intelligent control system, from the core member to the construction process each module has been carefully optimized machine performance has been further upgraded. We can say that green has become a symbol of a new era, but also an important factor in the current press manufacturers in the future model planning had to consider.

source:http://injection-molding-machine.tayu.cn/injection_molding_machine/461.html

Several categories of domestic injection molding machine

source:http://injection-molding-machine.tayu.cn/injection_molding_machine/449.html
Injection molding machine from the molding material classification:
1, thermoset injection molding. Thermoset injection molding machine injection molding production widely used in high temperature, high strength and high temperature electrical components Electrical Accessories, commodity comprising: ordinary electrical accessories, car cigarette filter supplies, pressure vessels and other mechanical parts.
2, thermo-elastic injection molding. Thermoplastic injection molding machine injection molding materials used in rubber production occupations, commodities comprising: Shoes supplies, wear and seal parts, waterproof plastic parts and plastic injection parts and other elastomer heat
A thermoplastic injection molding. Thermoplastic injection molding machine for injection molding production materials are widely used, including: the usual supplies plastic parts, engineering plastic parts, injection molded parts and other new information.
From the nature of the injection molding machine for classification:
1, the vertical disc injection molding machine, rotary series: vertical injection molding machine rotary disc series can be described as fine pieces of insert molding optimization plan, because the machine can be planned on a second lower mold die or lower die function, compared to embed appropriate messy and labor savings of strengths.
2, direct injection molding machine: This machine is mainly for cable, all kinds of electronic, computer data lines and plug line of injection molding, precision injection molding products require different standards, precision machine job configuration job requirements have changed, the product is suitable for the specific application of the general model specification clamping force from 15T - 300T range, because the manufacturers of specific models capacity modulus and arrangements vary, certain requirements prior to purchase specific models provided by the manufacturer Specifications are.
3, single-slide type vertical injection molding machine, injection molding machine double skateboard series: the first machine for engineering plastics, commodity have stringent fineness requirements, there is a small fine or insert together with injection molding, insert injection is optimized forming one plan. As the machine has a fixed upper mold, the lower mold slide function. The slide having a double double on the lower die mold, two-mode replacement work, compared to a suitable fine metal pieces embedded or removed. General merchandise molding, fine electronic connectors, phone connectors, integrated circuits and other components.
4, vertical and horizontal injection molding machines, C-type injection molding machine: This machine Vertical clamping, horizontal injection plastic because there is no guide posts, due to clamping portion into a letter "C" word and the name. The aircraft structure clutter and a huge amount of injection, because no column-wide work area, mainly engaged in various types of appropriate safety plug injection molding, such as France head, US plug, UK plug number.

source:http://injection-molding-machine.tayu.cn/injection_molding_machine/449.html

machinery: Chinese injection molding machine market position ...

machinery: Chinese injection molding machine market position ...: source: http://injection-molding-machine.tayu.cn/injection_molding_machine/448.html     In recent years, with the increase in demand for do...

Chinese injection molding machine market position for a long time will not be shaken

source:http://injection-molding-machine.tayu.cn/injection_molding_machine/448.html
    In recent years, with the increase in demand for downstream plastic products, injection molding machine of the overall steady growth in domestic demand. According to the press industry, "second Five Year Plan", the next five years, injection molding machine industry will grow by an annual average of more than 12%, and total sales of the industry output value reached 500 billion yuan industry. Given the current domestic market activity is lower than the international market, the domestic situation will encourage more enterprises to go international, can be expected in the next period of time, the injection molding machine industry exports will be hot, this intense domestic competition will be conducted to the international market , then, the international market will usher in the highly competitive and fast growth.
    2012 China top three injection molding machine importing countries were Thailand, Indonesia and Brazil. But since this year, Indonesia, Brazil increase thin, Thailand dropped 36.8%, which means that the injection molding machine overseas markets gradually develop a strong future need to be more cautious and modified plastics injection molding machines overseas investment.
    In the first three quarters of 2013, China's injection molding machine import and export trade deficit amounted to $ 48.76 million, up sharply down 72.2%; imports of injection molding machines occupy the top ten areas 47.7% of modified plastics. Injection molding machine is one of the largest business category national press market deficit. Extruder machinery is one of our country's foreign trade market, second only to the injection molding machine injection molding machine imports. In the first three quarters of 2013, China's total exports extruder station 9262, $ 238 million, accounting for 48.2% of the top ten export destinations.
Plastic processing machinery market is expected to grow at an annual growth rate of 6.9%, to 2017 will occupy machinery sales market two fifths, injection molding machines in 2017 the global market is expected to reach $ 37.1 billion, because of its versatility, a wide range of applications, future for a long period of time, or will continue to remain the most important position.
    So far, China is still the world's largest machinery and equipment market, accounted for 29% of 2012 when the global market, and will continue to lead the global market demand. India will be the world's fastest-growing countries in 2013 accounted for 12% of global market share. According to global, regional market, the central and southern United States the fastest growing market, followed by Africa and the Middle East. 2017, affected by the global transport industry development, injection molding machine manufacturer in Asia and the Pacific can be obtained fast delivery advantage.

source:http://injection-molding-machine.tayu.cn/injection_molding_machine/448.html

machinery: British plastics packaging market will further exp...

machinery: British plastics packaging market will further exp...: source: http://injection-molding-machine.tayu.cn/injection_molding_machine/418.html It is understood that the vertical plastic injecti...

British plastics packaging market will further expand

source:http://injection-molding-machine.tayu.cn/injection_molding_machine/418.html

It is understood that the vertical plastic injection molding machine in the country to establish urban infrastructure, play an important role in the establishment of high-speed rail, the plastic packaging market kept increasing. Government focus on technological innovation, with light adjustment and revitalization plan of the plastics processing industry as a key industry to provide support. Therefore, the demand for plastic packaging will continue to rise. Some mature market has begun to accept and popular higher-performance packaging bags, lightweight plastic bags is the development trend of development, with the transport of supplies to reduce light load makes the costs, in line with the interests and demands of producers. Meanwhile, the vertical injection molding machine market, lightweight bag is also environmentally friendly with the convenience brought new consumption developments, is gradually to be respected.

Developments in the packaging industry to transition from simple packaging innovative packaging, with the improvement of the economy with consumption of bags is no longer a simple product. Businesses with consumers on the quality of bag, material, quality and style are in ascension. The use of plastic bags in North America, with Western Europe the rate is already high, change the product mix will continue to support these regions to maintain growth in demand for bags.

Britain vertical injection molding machine plastic packaging manufacturer RPC has been approved to 307 million pounds (386 million euros) acquisition of Iceland with plastic parts manufacturer Promens Group.

Promens Group has 40 factories, 35 of them located in Europe. About 3,800 workers.

RPC issued a statement, saying that the Board believes that the acquisition of the business of Promens is very suitable for RPC, combining the two businesses will create a strong European platform in rigid plastic packaging.

Vertical injection molding machine rigid plastic packaging

RPC added that this acquisition will extend RPC services to multiple end markets, in order to strengthen the compound growth, increasing scale and reduce the cost of creating important opportunities.

RPC position, Promens acquisition will bring its niche technology. With the Group to further increase its demand for polymers will also increase, annual demand is expected to rise to 325,000 tons from the original 445,000 tons, accounting for 4.5% of the European rigid plastic packaging for Applied Polymer total.

RPC chairman PimVervaat said: RPC with Promens is a natural fit. We look forward to greater development platform, deliver greater value to our customers in the future with shareholders.

In addition, RPC has published its half-year results: six months ended 30 September 2014, with sales up 12% to 588.9 million pounds (743.5 million euros). Year-on-year, with sales of 524.7 million pounds (662.5 million euros). Pre-tax profit from the same period the previous year 30.1 million pounds (38 million euros) rose to 34.9 million pounds (44.1 million euros).

With economic development with upgrading people's living standards, demand for commodities is increasing bags, merchandise bags to more demands on the bag use value requirements are also improved. The rapid growth of the current value of the packaging industry, packaging industry reveals significant development prospects.

China is the world's largest fruit and vegetable production with sales of big country, but there are about 30% loss of fruit during storage, transportation and sales experience, which is important for reasons of improper packing, market conditions in the face of intense competition, vertical injection molding machine plastic packaging market The role is becoming increasingly important. Moment, polyethylene film with a polypropylene film is fresh fruits and vegetables the most widely used packaging material.

source:http://injection-molding-machine.tayu.cn/injection_molding_machine/418.html

machinery: Vertical injection molding machine optimized desig...

machinery: Vertical injection molding machine optimized desig...: source: http://injection-molding-machine.tayu.cn/injection_molding_machine/415.html     The clamping device is one of the main components o...

Vertical injection molding machine optimized design of the toggle mechanism

source:http://injection-molding-machine.tayu.cn/injection_molding_machine/415.html
    The clamping device is one of the main components of the vertical injection molding machine. Vertical injection molding machine toggle clamping mechanism is many a design variable, sport extremely complex institutions. FIG method used in the past to try to scrape together the design, calculation is extremely voluminous, spend a lot of design time, although the designer tried to select a good program from a number of possible designs, but this design method lacks a quantitative expression of the design goals, design parameters it is impossible to obtain through rigorous and accurate optimization.
    Can only be determined by analogy, the result is still far from satisfying, showing that there is room for improvement design. So, with the optimized design methods toggle mechanism is an inevitable trend, it can satisfy people more complex mechanical design of the proposed, more precise requirements.
    The establishment of a mathematical model
    Design of different types of vertical injection molding machine toggle mechanism, the objective function of different nature. Design of large and medium-sized machines, the objective function and generally minimal axial dimension, because not only can reduce the size of the machine, and in the processing of products, low energy consumption, but also saves time.
    Selection and optimization method Box 2
    Select the optimization method is a very important issue. Without complex method requires derivative, they do one-dimensional search methods, the nature of the objective function and constraint functions no special requirements, is a direct solution method. And the program is simple, fast convergence, good effect, which is only nine-dimensional design issues is very effective.
    3 conclusions
    Vertical injection molding machine in the actual design work, trial and error method used in FIG design, designers spend a lot of time, not exactly. And by optimizing design method, satisfactory results, and the entire block common good. Adopting varus up-down toggle clamping mechanism, can use the program, so that you spend a lot of time to solve a design problem can not be solved.

source:http://injection-molding-machine.tayu.cn/injection_molding_machine/415.html

EU injection molding machine materials and products have become increasingly demanding

source:http://injection-molding-machine.tayu.cn/injection_molding_machine/443.html
Zhangmutou, Huangjiang, Chang Ping South China's largest distribution center for plastic supply. The European Commission issued food contact plastic materials with new products and regulations, will perform at the March 25, the main adjustment related to a variety of chemical substances specific migration tightening. Does not meet the requirements for plastic products will be banned to enter the EU market, which will affect the export market share of the enterprise.

The full name of this legislation is the "food contact plastic materials with products Regulation No. 10/2011." Early February this year, the European Commission said the new regulations issued last year, since March 25 formally implemented. This is also the European Commission since 2011 to modify such legislation again.

It is understood that the new regulations added two can be used for the manufacture of food contact materials monomer; dicyandiamide monomer for specific migration limit to be clear, as 60 mg per kg; the original single substance restrictions, changed with new sUBSTANCE xylylene diisocyanate joint limit, the total specific migration of 0.05 mg per kg. Also introduced restrictions on content such as updated. As usual, the future does not comply with the food contact plastic products will be banned to enter the EU market.

However, the EU still leave some leeway on February 26 this year before that compliant products are still allowed with plastic material continues to circulate February 26, 2016, until stocks run out.

According to the analysis, these plastic materials with the EU have become increasingly demanding products, including Dongguan enterprises, including exporters to take the initiative to adapt to make improvement of production technology, otherwise it will lose these markets. Although plastic exporters or face a reshuffle, but in the long run, this can increase the added value of enterprises with strength, favorable enhance their bargaining power.

source:http://injection-molding-machine.tayu.cn/injection_molding_machine/443.html

Injection molding machine and hot runner mold What are closely linked

All automatic cycle hot runner mold design and production capacity is mainly used for the production of injection molding machines, select the injection molding machine is also crucial, injection molding machine, to be applied to the hot runner system. In the choice of the injection molding machine has the following relevant factors need to be considered:
    1, hot runner mold for depreciation, to promote the continuous operation of the injection molding machine, multi-stage startup seeking to reduce bad.
    2, the injection volume metering of the injection molding machine, taking into account the large-volume flow path plastic compressibility.
    3, due to increased hot runner mold hot runner, much passageway plates, so a corresponding increase in the thickness of the mold, to pay attention to the mounting height of the choice of the injection molding machine injection molding machine.
Many devices used to ensure automatic operation of the mold, the first choice is simple robot or manipulator controlled, such as:
    1, to reduce the time to mold, reduce cooling water, gas, and hot runner temperature control box circuit connection time, etc.
    2, extrusion plastics or accelerate their ejection.
    3, control the movement of plastic parts and reduce startup time accessories.
    4, before the start of the injection molding machine mold is heated.
    5, the product needs to be placed inserts, labels or sheets until the mold.

source:http://injection-molding-machine.tayu.cn/injection_molding_machine/447.html

Injection molding machine industry and foreign competition, each set strategy and development

    Comprehensive data analysis, we can see that the development of vertical injection molding machine industry has been getting better, whether it is economic production vertical injection molding machine industry or its acquired, or is its scientific and technological innovation, have made gratifying achievements Chinese and foreign companies have increased horsepower in order to achieve better development.

    Production injection molding industry, for example in China, according to incomplete statistics, China now has 546 local plastics machinery manufacturer, vertical injection molding machine annual accounts for 62.97% of the world's annual production of vertical injection molding machine, the next few years the industry It will be 7.43% CAGR growth. In recent years, along with well-known international companies to deepen joint ventures and technical cooperation, as well as international preclude the purchase way mechanical parts of the master, China has become the world's superpower presses pieces of production.....

source:http://injection-molding-machine.tayu.cn/injection_molding_machine/445.html

Countries Pledge Continued Support for Somalia

LONDON — Representatives of more than 50 countries and international organizations pledged continuing support for Somalia's new government during a conference in London on Tuesday.

The conference final communique calls this “a pivotal moment” for Somalia, and pledged continued support for political reform, building security and the justice system, and improving financial management and transparency.  It also calls for continued efforts to improve the Somali economy, take care of displaced people and protect human rights.

The document also indicates continuing concern about using the new Somali government's institutions to funnel aid, and says international organizations still have a key role to play.

The conference co-host, British Prime Minister David Cameron, said the daylong event was useful in keeping international support flowing to Somalia as the government, created late last year, establishes its authority.

"Real progress has been made about backing the president's plans for putting the country of Somalia back together again.  That is, effectively, what is being done here -- very clear plans, very clear support from the international community, building on the progress of the last 12 months," Cameron said.

Somali President Hassan Sheikh Mohamud said he was heartened by the international support, and summarized his message to the world leaders.

"The world has a partner it can trust.  We are working hard to reform our country, despite the great challenges that are in place," Mohamud said.

Somali and African forces have pushed back al-Shabab rebels over the past two years, in a move to improve security, which the communique calls “the essential prerequisite” for progress in all areas.

But a British government statement calls that progress “fragile,” and Prime Minister Cameron said that aside from a desire to help Somalis, the West has another important reason to help ensure Somalia does not again descend into chaos.

"Radicalism is poisoning young Somali minds and breeding terrorism and extremism.  This is a threat to our security, and if we ignore it, we would be making the same mistakes in Somalia that we made in Afghanistan in the 1990s," Cameron said.

The conference praised local efforts to improve the economy in Somalia, partly in an effort to provide work for young men and reduce pirate attacks on ships off the coast.  Piracy is down substantially over the past year.

International efforts to help Somalia will continue in a series of meetings in Brussels, Addis Ababa and Tokyo in the coming months.  And in a move President Mohamud sees as significant, the United Nations is to deploy a team to coordinate all the organization's activities in Somalia.

source:http://en.99599.com/handle-news/bakelite-590.html

The principle of injection molding machine

    Injection molding machine has a complex shape to a shape, size, precision, or with metal inserts dense texture of the plastic products are widely used in national defense, electronics, automotive, transportation, building materials, packaging, agriculture, culture, education health and daily all areas of life. Injection molding of various plastics processing has a good adaptability, high capacity and easy to automate. The rapid development in the plastics industry today, both in quantity and injection molding machine or varieties have played an important role, the production of plastic molding equipment, the total number of 20% - 30%, making it the fastest growing plastic machinery, production volume one of the largest models. According to statistics from 1996 - 1998, 8383 China's exports of injection molding machine (sets), imported injection molding machines 42959 (sets), in which injection molding machine in China in 1998 production reached 20,000 units, its sales accounted for total sales of presses 42.9%. The working principle of injection molding machine and injection with a syringe similar, it is with the screw (or plunger) of thrust, will have a good molten plastics (ie, viscous flow) closed well into the plastic injection mold cavity, The products obtained after curing shaping process. Injection molding is a cyclic process, with each cycle including: dosing - molten plastics - pressure injection - filling the cooling - Kai-mode pickup. Remove the plastic parts and then re-closed mode, the next cycle. Injection molding is a cyclic process, with each cycle including: dosing - molten plastics - pressure injection - filling the cooling - Kai-mode pickup. Remove the plastic parts and then re-closed mode, the next cycle.

    General injection molding machine including injection device, clamping devices, hydraulic systems and electrical control systems and other parts.
    Injection device: its main role is to make plastics plastic evenly into the molten state, and with sufficient pressure and injection speed will melt into the mold. It mainly consists of plastics parts (barrel, screw, or plunger, nozzle, etc.), hopper, screw gear (motor oil, etc.), injection cylinder, move the cylinder block composed of injection.
    Clamping device: it is to ensure that mold is closed and the achievement of a reliable opening and closing action, and take out the product model parts. As the melt at high pressure into the mold cavity in order to produce products without causing locking mold flash or affect product quality, we must put enough of the mold clamping force (ie, clamping force). Clamping device includes a fixed template, mobile template, after the wall, before and after the template used to connect the rod, clamp cylinder, the top of the cylinder, transfer mode devices and other components.
    Hydraulic system and electrical control system: it is to ensure that pre-injection molding machine according to process requirements (such as pressure, speed, temperature, time, etc.) and action program to work effectively and accurately set the power and control systems.
    Generally screw-type injection molding machine process: first by adding granular or powdered plastic cylinder machine, and through the rotation of the screw and barrel wall heating the plastic to become molten state, and mold and injection machine front seat shift, snapping the nozzle mold gate road, then the oil pressure to the injection cylinder Walter, screw forward to the high pressure and faster speed will melt into the closed mold temperature is lower , after a certain period of time and keep the pressure (also known as pressure), cooling, so that curing can mold removal products (packing the cavity to prevent reflux in the melt, add material to the mold cavity, and to ensure that products have a certain density and dimensional tolerances). The basic requirement is injection molded plastics, injection and molding. Plastics molding products to achieve and guarantee the quality of the premise, and to meet the requirements of molding, injection must ensure there is enough pressure and speed. Meanwhile, high pressure injection, corresponding to the cavity produced in a high pressure (the average cavity pressure is generally between 20 ~ 45MPa), so there must be large enough clamping force. Thus, the injection mold device is a device harmony key component injection molding machine.
    Injection molding machine of action program
Mold closed → → → injection nozzle forward → → packing → pre-plastic nozzle loose back → back → cooling → → top of the mold → → needle back door.
    Injection molding machine operation program: injection molding machine operations include control keyboard operation, electrical and hydraulic control system operating system operating in three areas. Separate injection process action, feeding movements, injection pressure, injection speed, the top choice of type, cylinder temperature of each of the monitoring, injection pressure and back pressure regulation, etc.    The evaluation of plastic products are mainly three aspects, first is the appearance of quality, including integrity, color, gloss, etc.; second is the relative position between the size and accuracy; third is the appropriate use of physical properties, chemical properties, electrical properties. These quality requirements and product use occasions, according to the different requirements of different scales. Products, mainly due to defects in the mold design, manufacturing precision and wear and tear and so on. But in fact, plastic processing plants often suffer from technical staff to use technology to make up the face of the mold problem and the effectiveness of defect is not caused by a difficult situation.
Regulation of the production process technology is to improve product quality and yield the necessary means. As the injection molding cycle itself is very short, if the process conditions are handled badly, waste will be endless. In the adjustment process when the best time to change only one condition, to observe several times, if the pressure, temperature, time all the words with the tune, it could easily lead to confusion and misunderstanding, a problem do not know what reason. Adjustment process measures, the means are manifold. For example: to solve the problem there is dissatisfaction with products Note dozen possible solutions, to select the crux of the problem-solving one or two major programs, in order to really solve the problem. In addition, the solution should also pay attention to the dialectical relationship. For example: the emergence of depression products, sometimes to raise the melt temperature, sometimes to reduce the feed temperature; sometimes to increase the quantity, and sometimes to reduce the fluxes. Reverse steps to recognize the feasibility of solving the problem.

source:http://injection-molding-machine.tayu.cn/injection_molding_machine/204.html

A method for producing aluminum handwheel

Handwheel is an important component of the wheelchair, wheelchair users customize the front handwheel to manipulate wheelchairs row. Usually made of aluminum alloy wheel wheelchair to get started, because of lighter materials and resistant to corrosion. However, the traditional wheelchair and wheelchair handwheel handwheel processing methods for selecting the appropriate aluminum alloy material, the use of bender bending Yuan Cheng desired size after using sawing machine sawing curved segment ends, the hand wheel ring body shot hole post-processing needs, and then bent at both ends of welding, welding and further for overall body shaping ring grinding, heat treatment, so that the hand rim welded at the smooth, mark, does not affect, and finally after welded handwheel polished, anode surface treatment, and then after detecting no poor packaging. The processing method is more complicated, and welding, spot welding adverse inevitable, resulting in shaping the next grinding more of work, increased labor costs and higher anodizing. After the hand wheel and welded, and then the overall anodic surface treatment process between longer.
SUMMARY
In response to these deficiencies in the prior art, the main object of the present invention is to provide a method for producing an aluminum alloy handwheel, it is possible to reduce the aluminum handwheel processing step in ensuring the quality of production conditions, shorten the processing time and improve work efficiency, and reduces the amount of labor. To achieve the above objectives, technical solutions adopted in the invention is a method for manufacturing aluminum hand wheel, the steps are the steps of a, surface treatment of aluminum alloy selected aluminum tube, which was long branch anodic surface treatment, aluminum alloy tube surface evenly coated; step b, bent round and saw the end of a step into the aluminum tube bender in the bend Yuan Cheng appropriate size, and then sawing aluminum tube bends round ends after; step C, after the end of the splicing step b, the two ends of an inner cannula is inserted within aluminum alloy tube ends are bent round has been formed, the use of plug stitching machine aluminum tube ends, aluminum tube butt ends at the close fit complete hand wheel molding; the inner cannula outer diameter smaller than the inner diameter of the aluminum tube, aluminum tube and the inner cannula interference fit; step d, drilling and packaging at the end of step c aluminum handwheel on drilling, examination, product packaging. In the present invention, aluminum alloy tube anode surface treatment, the aluminum tube coated with anti-wear anti-corrosion film, extend the life of the hand wheel made after. Preferably, both ends of the inner tube surface smooth, the outer surface of the intermediate section to increase the roughness by grinding or other manner. When both ends of the aluminum tube bends round the inner cannula is inserted after the re-use plug stitching machine aluminum tube ends, so that the splice tight with, because the outer surface of the cannula through grinding or other treatment to increase the roughness so that the splicing process, the friction force is large, the splice is captive. Preferably, the length of the inner cannula is 20mm-50mm. Within the cannula length should not be too long a convenient plug-and it is not too short, too short, and both ends of the aluminum tube bite does not close, after repeated practice, the election less than a length of 35mm cannula most good length. Both ends of the inner cannula of the present invention via the lathe angle to facilitate insertion within the aluminum tube ends, during use of the connector plug machine to be assisted by a special glue, or no glue.
Preferably, the inner tube made of aluminum alloy. In practice, it can also use other metals or alloys made of materials such as stainless steel, magnesium, aluminum and other materials, aluminum alloy tube ends to facilitate insertion. The present invention uses the first post-anodized aluminum tube, then elbow, then splicing molding, machining fewer steps. Splicing molding process used within the cannula instead of the traditional welding process, compared to conventional processing methods, without the need for plastic surgery after welding, grinding, heat treatment process, reducing the amount of labor, improve efficiency and reduce costs. According to the actual operation of the calculation, using the method of the present invention for producing aluminum handwheel compared to the prior process, saving half the cost. And the method of the present invention, an aluminum alloy wheel hand made mosaic shape intact, no welding, weld marks, and because the inner cannula is placed inside the aluminum tube, but also enhances the anti-stress handwheel. The advantages of the present invention is a method of manufacturing aluminum handwheel reduces processing steps, cost savings, improve efficiency and product stitching forming a good effect.

source:http://en.99599.com/handle-news/bakelite-874.html

Fuzzy Control injection molding machine barrel temperature

   Injection molding machine barrel temperature is an important parameter injection molding process, the temperature of the cylinder is to ensure effective control of the quality of the plastic molding important part. Currently, vertical injection molding machine heating method used mostly in tight external screw barrel solid paragraphs heating coil, the number of segments of different models heating coil may be different, according to the technical requirements of each of the temperature to adjust the temperature control is usually used temperature meter, but whether it is the use of two-position type PID temperature or temperature meter instruments are difficult to maintain good dynamic performance.
   A vertical injection molding machine barrel system requirements analysis
   Vertical injection molding machine barrel heating temperature achieved by the heating wire is energized, cooling and natural cooling is achieved by plastic take away some of the heat environment, we can see that the barrel is characterized by changes in temperature and rapid heating and cooling is slow, so when lower barrel temperature, away from the larger setting, should quickly heat up, when the cylinder temperature should be close to setting a slow warming, when the cylinder temperature reaches the set value, the heating of the barrel due to long maintained the temperature of the heat caused by natural cooling and plastic drop away, so that the cylinder temperature to maintain relatively stable within a set range.
   2 vertical injection molding machine barrel fuzzy control theory
   Rules vertical injection molding machine is the core barrel fuzzy control fuzzy control, input controller for temperature and the measured temperature setting deviation E and deviation change rate EC, plus the heat output of the heating wire set U. the set temperature t 0, t is the actual measured temperature, the deviation E = t0 -. t this time if the measured temperature is set to t 1, the last measured temperature is t 2, the temperature deviation changes in the rate of EC = t1 - t 2 E deviation of temperature into five fuzzy subset B (large), M (medium), S (small), Z (zero) and N (negative). [2 - 3] when t 0 - t> T 1, the corresponding B; if T 2 T2> 0 the rate of change of temperature deviation EC into three fuzzy sets P (n. ), Z (zero), and N (negative) when t 1 - t2> T 3, the corresponding P;. when - y 0.
   Vertical injection molding machine barrel plus heat electric wire U into four fuzzy subset B (large), M (medium), S (small) and Z (zero), and processing the voltage on the electric wire corresponding to the size the input-output characteristics of the system, the system output response to dynamic and static performance best, fuzzy fuzzy rules using the following conditional statement to describe. if E = B and (EC = P or EC = Z or EC = N) then U = Bif E = M and (EC = P or EC = Z) then U = Mif E = M and EC = N then U = S # 40 # 1 mechanical and Electronic 22006 (3) if E = S and (EC = P or EC = Z or EC = N) then U = Sif E = Z and (EC = P or EC = Z) then U = Zif E = Z and EC = N then U = Sif E = N and (EC = P or EC = Z or EC = N) then U = Z above description reflects the dynamic response of the control ÷ slow up fast down "ideas, and practical experience consistent for ease of SCM fuzzy subset from the precise control of the amount of judgment, E's on domain is expressed as {5, 3, 1, 0, -1}, EC's domain is expressed as {1, 0, - 1}, U's domain is expressed as {5, 3, 1, 0}.
   3 vertical injection molding machine barrel hardware circuit
   Temperature control system hardware by 89C51 microcontroller core circuit, shown in Figure 1, the temperature control is implemented by adjusting the voltage thyristor, if there is heated barrel section 3 or 4 sections heating coil, the SCR the control section 3 also has a corresponding group or 4.
  89C51 level P1 port generates a zero pulse after the sync pulse and synchronized drives and optocoupler input to the control electrode of the thyristor, the thyristor to control the on and off. LM311 voltage comparator and a monostable flip-flop MC14528 devices and other components zero trigger circuit.
   Zero-crossing sync pulse generating circuit triggered by the zero-crossing of the pulse as a trigger pulse to the triac temperature synchronization control circuit, and also a count pulse to the terminal T0 and T 1. P1 port generated by the fuzzy control algorithm corresponding to the control U is the amount of pulse signal, the level of conduction of SCR control, temperature regulation.
   4 vertical injection molding machine barrel Software Design
   The barrel temperature of each section were measured by a thermocouple, the A / D conversion, the set temperature and the measured temperature of the temperature deviation obtained by subtracting E, to the storage unit; the measured temperature of this reduction last measured temperature to obtain a temperature change rate of deviation EC, stored in the corresponding memory cell; then to determine the amount of the output voltage U of the fuzzy control rules based on the size of the deviation and the deviation change rate when the temperature is programmed to temperature. deviation, variance and rate of change of the control output corresponding to the temperature deviation is divided into three sections, the use of three different quantization factors to achieve fast and stable temperature control of the vertical injection molding machine. temperature deviation and the deviation change rate corresponding to the quantization factor to control the output, respectively, by the K e, K ec and K u K e to represent the greater the faster the system will rise, but the K e overshoot over the General Assembly to make the system becomes large;. K ec greater the slower system response, but K ec too small allowing the system to adjust for a long time, overshoot larger; K u greater the faster the system response, but also large overshoot, K u most sensitive response of the system, affecting more than K e, K ec large programs such as the design process. Figure 2.
   5 vertical injection molding machine barrel Conclusion
   Modern vertical injection molding machine barrel temperature control process on the increasingly high demand, therefore, vertical injection molding machine control method designed with low cost of hardware, software, simple design, high control precision and good dynamic performance characteristics, can to better meet the requirements.

source:http://injection-molding-machine.tayu.cn/injection_molding_machine/309.html

Vertical injection molding machine classification

Vertical injection molding machine classification: specific vertical injection molding machine can be divided into the following categories.
1. the vertical injection molding machine series: the vertical injection molding machine model is mainly for cable, all kinds of electronic, computer data lines and plug line of injection molding, precision injection molding products less demanding standard, generally PVC, PE such as plastic material injection led product suitable for the specific application of the general model specification clamping force ranging from 35T to 15T--, because the manufacturers of specific models Yung modulus configuration is different, before purchase certain plants require manufacturers to determine the specific model parameter specifications.
  2. the legislature horizontal injection molding machines, C-type injection molding machine series: the vertical injection molding machine Vertical clamping, horizontal injection plastic because there is no guide posts, due to clamping portion into a letter "C" word and the name. The aircraft structure is complex, with a large amount of injection, because no column-wide work area, mainly engaged in various types suitable for injection molding safety plug, such as the French head, US plug, UK plug, etc.
3. the single-slide type vertical injection molding machine, injection molding machine double skateboard series: the vertical injection molding machine models mainly for engineering plastics, the products have strict requirements for precision, precision or tiny insert injection molding together, but also embedding one piece injection molding optimization program. Because it has a fixed upper mold, the lower mold slide function. The slide having a double double on the lower mold die, alternating two-mode operation, compared suitable for precision metal parts embedded in or take out. General molding products, such as precision electronic connectors, phone connectors, integrated circuits and other components.
4. the disc vertical injection molding machine, rotary series: vertical injection molding machine rotary disc series can be described as insert molding precision parts optimization program, because the machine can be designed on a second lower mold die or lower die function, compared with the advantages of complex embedded and labor-saving suit.

source:http://injection-molding-machine.tayu.cn/vertical-injection-molding-machine.html

Bakelite Product Safety Precautions

1, is strictly prohibited choose the "three noes" and fake and shoddy products. Due to their low dielectric properties, heat resistance and mechanical strength is poor, it is prone to the use of electric shock, fire and other accidents. Bakelite electrical appliances should be selected in line with existing national and industry standards of qualified products.

2, in strict accordance with the provisions of the rated voltage bakelite electrical current rating levels, it must not be overloaded.

3, bakelite electrical installation should be standardized. When wall mounting, light switches, sockets should be embedded wood pillow; dark sockets, switches to embedded matching box; and shall be firmly fixed. When the socket mounting height at 0.3 to 0.5 m range should be used to protect the door with a safe outlet (up from the ground). Mounting height nurseries, kindergartens and primary schools sockets (counted from the ground) should be 1.3 to 1.8 m range.

4, switches, sockets and wire connections may not appear wrong then, fumbled and the loose wiring and so on. Switch must control phase, it does not allow control of the zero line, to ensure that when the switch is off, the lamp is not charged. Single-phase two-pin connection phase right hole, left hole zero line; single-phase three-hole socket connected to the zero line left hole, right hole connection phase, the hole-protecting ground.

5, bakelite appliances used in waterproof, moisture and other special circumstances should use special type, can not use ordinary type instead. Such as toilet use splash outlet.

6, the proper use of plastic surgery appliances. Plug and socket supporting the match should be used. As jaw with three-hole socket plug should not be free to transform, replace the cable pull switch can not be replaced by an electrically conductive material, cleaning plugs, switches, lamp, reel should be used to cut off the power supply can not be charged with a damp cloth, while Beware of conductive material to fall into the inside, mobile gum when moving this appliance should be unplugged.

7, found bakelite electrical insulation cracks, broken, carbonation, leakage and other phenomena should be replaced. Replacing should cut off the power to prohibit live action.

8, to ensure safe, indoor distribution box should automatically install the appropriate leakage protection switch!

Source:http://en.99599.com/handle-news/bakelite-845.html

saving injection molding machine?

    In the course of the injection molding machine fever laps when the tube is heated to melt, most of the heat directly into the atmosphere, less heat recovery, exhaust gas take away some of the heat, these emissions are directly discharged into the atmosphere, both pollution the environment and the loss of more heat, while allowing low thermal efficiency, heat loss big equipment. Without any form of insulation, directly exposed to the atmosphere, the metal surface to the atmosphere exudes a lot of heat, heavy pollution, exhaust gas is not in any way remove dust.

    On our planet, every day was taken away by the immense heat of the flue gas, environmental pollution is staggering. How injection molding industry energy conservation, improve the working environment, reduce injection workshop temperature is a concern. Waste heat recovery injection molding machine is an important aspect of energy conservation work, if all of the flue gas heat recovery are performed, its cost is very impressive.Visit Tayu Machinery

    1 energy-saving programs

    Existing injection molding machine is equipped with systems for plastic dehumidifying dryer, electric heating mode to provide heat, carry a certain amount of heat from the exhaust outlet air heat drying drums, when this part of the heat directly into the workshop, a workshop area will increase the dust content in the air and affect the operation of the health of workers, on the other hand will increase energy consumption and increase the financial burden on businesses.

Injection molding machine installation preheating saving compared to the situation before and after the collection device

    For the deficiencies of the prior art, this paper provides a heat recovery heat cycle apparatus, melt rubber tube around the heating section to install waste heat collection device, when the use of the work of the heat drying tub plastics dehumidification drying process.

    Has some water, hot air from the dust discharge 4 through the pipe into the dust circulating hot air dehumidifying device 3 by its handle 3, a portion of the heat source after the next adjustment turbine 6 to power a hot gas, such that a flow cycle, after processing proceeds 2,2 6 by plastic barrel and the heat of the hot gas entering the further heat treatment; and another portion of hot air heated gas through 5 are 2, 4 which can adjust the temperature of the air flow rate within 6 to ensure that the actual 4 correspond to the set temperature. When the temperature inside the 4 lower than the set, 5 to 6 signals, increase speed to increase the output amount of wind at 6 driving action, enter 4, after two high temperature air increases, the temperature rise inside the 4, when the inner 4 a higher temperature than the set temperature is high, the signals 5 to 6, 6 to reduce the speed and reduce the output of wind, thus reducing the gas temperature entering the 4, 4 temperature is lowered.

    2 Economic Benefit Analysis

    2.1 Technical Data Features

    (1) System power saving 15% to 35%, saving more than 90% of the dryer;

    (2) high temperature 270 ℃ ~ 280 ℃, low temperature -70 ℃;

    (3) production workshop temperature drop of up to 3 ° ~ 8 °, the working environment has greatly improved;

    (4) CO2 emissions than conventional reduced by 45% to 50% and no SO2, fly ash, slag, NOx emissions low;

    (5) Tensile strength ≥0.02MPa;

    (6) corrosion resistance, aging, waterproof, anti-oil, anti-oil pollution, environmental protection, pollution-free;

    (7) Easy to install, good service, toughness, flexible bandage;

    (8) for different temperatures, the shape of the injection molding machine.

    2.2 Case Study

    Each machine per year festival electric quantity is: 2.53 * 24 * 365 * 0.918 = 20400 the entire system can save standard coal 34t per year of carbon dioxide emissions 15t.

    Seen in this light, greatly reducing the cost and save the traditional dryer wasted capacity power distribution system, greatly improved the use of power, more power is available for additional devices without the need for installation of transformers, if need to use the air conditioning plant, even more can save a lot of air conditioning costs; due to the heat melt tube is recycled, separate installation of double filtration intake apparatus can be made between each injection molding machine is not affected by contamination, and completely within the filter drum dust released into the atmosphere, prevents the gas pollution workshop on the health of employees play a protective role, workshop temperature drop of up to 3 ° ~ 8 °, the real solution to the problem of high temperature workshop, which will help lower the staff in a comfortable working environment jobs.

    Problems with waste heat utilization presence of Recommendation 3

    Problems below.

    (1) China's plastics processing companies across the country, but the equipment skill levels, a lot of business equipment needs further transformation;

    (2) ban plastic industry voices, but in the rural market is still widely used plastic products, cutting costs has become a top priority for enterprise development;

    (3) Due to the dissemination of information channels and lack of funds business, which greatly restricted the lot to promote this technology, many enterprises lack advanced energy-saving technologies and mechanisms for clean development mechanism, advanced technology service providers have no way to understand the situation of enterprises;

    (4) high-temperature waste heat utilization technology after years of development is now more mature, successful cases also showed its economic benefits, but the huge potential of the low-temperature waste heat utilization needs further development.

    Corresponding recommendations are described below.

    (1) the production and use of business management to achieve "the proper use of scientific management, careful maintenance, regular maintenance, reasonable lubrication, planned maintenance, improve equipment availability, the equipment in good condition;

    (2) pollution energy consumption is a top priority, as one of the main thermal energy-saving, more active policies should be introduced, given the appropriate financial support, and guide enterprises to play an active role in industry waste heat recovery;

    (3) to carry out waste heat resources research and gather relevant advanced technology, management and strengthen information dissemination and other cases, strengthen the research in low-temperature waste heat utilization technology, promoting the application of heat technology.

    (4) recommendations have the potential of waste heat utilization enterprise, considering the system as far as possible, the overall improvement, and focus on the refinement of the use of automatic control systems.

Source：http://injection-molding-machine.tayu.cn/injection_molding_machine/439.html