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Starlink Machinery in Jordan Machine Fair

From 6th-8th, September, 2017, Starlink Machinery attended “China Trade Fair Jordan 2017” in Amman International Motor Show. William Jiang, the director of Starlink Machinery, stayed in Jordan for one week, had meetings with trading companies, shoe factories, machine importers, and other ones that were interested with shoe making machines. They talked about shoe making procedure, shoe machines, and also the plan to start a new shoe plant.

It is also an opportunity for Starlink Machinery to serve companies in shoe making field, and support them meet the shoe making requirement in Mid-East, Even in Arab Area.

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About screw LD ratio

The L/D ratio is the ratio of the length of the screw to its outside diameter. The ratio calculation is calculated by dividing the length of the screw by its nominal diameter. Although several injection molding machine manufacturers now offer a choice of injection units, most injection screws use a 20:1 L/D ratio.

screw ratio (L/D) meaning how long it is compared to its diameter.    As an example, the L/D ratio for PP and PE is in the range 20-30:1.

The effect of changing the L/D ratio can be summarized in the following manner: the larger the ratio (longer length), the:

More shear heat can be uniformly generated in the plastic without degradation;

Greater the opportunity for mixing, resulting in a better homogeneity of the melt;

Greater the residence time of the plastic in the barrel possibly permitting faster cycles of larger shots.

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What is the Future Development of Shoe Machinery Companies?

What will the future development of shoe machinery companies look like? It is an intelligent shoe-making enterprise that connects the intelligent shoe-making equipment and management information to produce the raw materials for shoe products to form a database.

We can use imagination to describe the scene of the future shoe factory. Semi-finished shoes on the production line come over. Each pair of shoes has its own identification QR code, which records who ordered it, what code number, what color and other information. After each shoe comes, it will be controlled by radio frequency identification technology wireless communication. The controller then transmits the integrated information to robots or ordinary operators, and completes the shoe-making process according to the formula, until the consumer can still keep the backup of the shoe information. In this way, multi-variety, small-batch, customized production can be Say that every pair of shoes is tailored for you from the moment you place an order online. All of its characteristics are in line with your preferences.

The intelligence of the shoe production process is to use the product as a data collection terminal, and upload the continuously collected user data to the cloud, so that it can form the core of an industrial Internet, that is, billions in the world. The comprehensive information of the population, clothing, food, housing, transportation, personal preferences, birth, old age, sickness and death are all in the database. For example, if you want to drink high-end sprinkles at this time, the nearest wine supplier will send it to the code. When the integration of intelligence and the Internet in shoe machinery companies becomes deeper, another business model is born. This is the cloud factory. The shoe machinery in the factory is also intelligent. They continue to collect their own data and send it to the industrial Internet. At this time, you can see which factories are operating at full capacity and which ones are idle, which can complement each other.

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Analysis of the Use and Status of TPU Injection Molding Machine

There are many manufacturers of TPU injection molding machine in China. According to incomplete statistics, there are more than 20,000. The structure of  TPU injection molding machine can be divided into two types: vertical and horizontal. It can be further divided into ordinary and precision injection molding machines, with an injection volume of 45-51000g; clamping force 200-36000kN. If it is divided by processing raw materials, it can be divided into three types: thermosetting plastics, thermoplastics and rubber.

Plastics include polystyrene /polyethylene/ polypropylene/ nylon/polyurethane/ polycarbonate/plexiglass/ polysulfone and (acrylonitrile/butadiene/styrene) copolymer (ABS), which are derived from processed products See/have one-color/two-color general and precision plastic products. The main manufacturers of the above products have their own series, each with its own characteristics.

The full-automatic disc-type injection molding machine produced by Starlink Shoemaking Machinery Co., Ltd. has two types of CNC and computer control for each specification. Both can be used to produce various high-precision thermal plastic products. The machine adopts linear movement. Sensors control injection, mold clamping and ejection, using multiple CPU electronic control system, large-format color LED display, full computer automatic control.

For example, the full-automatic disc-type injection molding machine produced by Dongguan Jinlei Shoemaking Machinery Co., Ltd. has two types of CNC and computer control in each specification, and can be used to produce various high-precision thermal plastic products. The machine adopts a line The mobile sensor controls injection, mold clamping and ejection. It adopts multiple CPU electronic control system, large format color LED display, and full computer automatic control.

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Three Characteristics of the Overall Operation of the Shoe Machine Market

Two-way transformation is obvious

Regional service providers provide more and more products, and professional manufacturers produce fewer and fewer varieties. On the one hand, the industry is gradually showing a new and complex competitive landscape. On the other hand, downstream customers are increasingly demanding, and many functions are personalized and customized, which makes shoe machine providers have to seek new marketing breakthroughs.

Therefore, the shoe machine trader as an intermediary has changed from reselling, acting, distributing or OEM various machinery and equipment to a provider of overall technical solutions, striving to provide customers with one-stop whole factory services and create profit growth points. The professional machinery and equipment manufacturers have changed their previous wide product line production model to focus (professional, lean, top-notch).

Continued activity in overseas markets

With the further shift of shoe making companies to lower-cost regions and countries, new sales growth of upstream machinery and equipment providers has been driven. With the rise of shoe making industries in neighboring countries and other emerging markets, economical and practical domestically produced machines are popular in overseas markets, and transactions are very active.

Many powerful domestic machinery and equipment manufacturers have quietly deployed abroad. With the growth of the local footwear industry, sales have naturally risen. For example, shoe manufacturers in Vietnam, Indonesia, Cambodia and other countries continue to expand their production lines, and shoe machinery companies with overseas markets, such as Qifeng shoe machinery, have achieved good overseas performance growth.

Automated machines continue to sell well

Although the shoe industry is shifting to low-cost areas, there is also a trend. The artificial rise is not only happening in mainland China, but also the trend of salary adjustments in neighboring countries such as Vietnam, Indonesia, and Cambodia is also spreading. In addition, the supply of raw materials and equipment is not mature. The problem of lagging is the rise of a production method that represents energy saving, low carbon, environmental protection, automation and intelligence, and has gained a good development space.

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Analysis of advantages and characteristics of Huaibei supplier of RCO catalytic combustion equipment for shoe viscose factory

When the air intake throttle valve changes, the air volume and pressure also change, and the output of the combustion engine also changes. There are many types of burners, but the and performance of each kind of burner is somewhat different. The red light of the lock controller is on when the burner does not inject fuel. Atomizing nozzle back pressure The size of the nozzle in the atomizing nozzle will affect the atomization effect. Generally, the smaller the size, the higher the nozzle back pressure, the better the pressure atomization effect, and the smaller the physical particles. In order to evenly heat all parts of the boiler, when the burner boiler is firing, it should be baked with wood first, and the chimney baffle should not be too large to make the fire weak. When the air volume is increased, the thermal content increases, and a large amount of ammonia injection is required to increase the flue gas denitration effect, which causes the ammonia escape rate to increase, generates hydrogen amine, and blocks the air preheater. In response to the above situation, nine representative power plants in Shanxi Province were selected for investigation, and the small technical output of the nine power plants was integrated. After the transformation, the small technical output of the units was in the middle. The fifth step is to install the burner to the boiler to work normally for two hours, and reach the pressure or temperature required by the manufacturer. Don't ignore the oxygen supply. Once the maintenance of the fuel supply system and burner has been determined, check the oxygen supply of the system. Strengthen the inspection and maintenance of the equipment, especially when the standby unit is out of service. If the hidden dangers of the equipment, such as the wear and fall of the blunt body of the burner, are found, the maintenance personnel shall be notified in time for handling.

The burners can be arranged symmetrically or centrally. The amount of atomizing air The amount of compressed air supply affects the atomization effect of the combustion nozzle. Clean combustion area, ash area, smoke area, and defire area appear respectively. Generally, the amount of atomizing air is large, and 800 or 1250SCFM compressors are required. . In order to explain the operating principle of the pressure regulator more clearly, it is necessary to clarify this question: What conditions should be provided for safe gas incineration? For solid fuels to be burned safely, two conditions must be met: one is an appropriate amount of combustion-supporting gas, air or oxygen, and the other is that the incineration material maintains a certain temperature and is usually higher than the ignition point. Do not block the ventilation openings of the gas equipment installation area to avoid the danger of accumulation of toxic gas or flammable and explosive gas. The fourth is to strengthen scientific and technological investment and research, and modify the existing situation of the biomass pellet burner system. In view of the pollution problem of coal-fired boilers, the following recommendations are pointed out: The supervision should be stronger. Imported burner equipment and technology is a distance, but it is not much different from the equipment. It can be said that the introduction of imported equipment puts a certain pressure on domestic burner companies. To increase diesel oil, the hydrocarbon content of ordinary biomass burners accounts for more than 60% of the total volume and the mixture is homogeneous. It is also possible to consider the method of liquid production, especially heavy oil heat, to improve physical properties. Burner maintenance should be carried out regularly, and pay attention to the situation during use: Before using the machine every day, try to wipe the entire screen with a dry cloth; the operation steps should be reasonable, lightly press the control switch and button; after the operation, it should be closed in time The outer cabinet door prevents rain or other liquids from entering the cabinet and the cabinet door being damaged by melancholic wind; pay attention to timely check and replace the insurance, the burner is operating normally, and always check whether the connection of the burner and each component is firm and whether it is loose , Location changes, etc. Strengthen the management of the blending of coal into the furnace, reduce the variation range of the coal into the furnace, especially the low calorific value of the coal quality, and avoid the coking in the boiler furnace due to the low calorific value of the coal quality change and the disturbance of the furnace when the large coke falls Internal combustion conditions cause boiler fire extinguishing accidents.

In order to prevent the molten ash from sticking to the heating surface in the flue, when the flue gas moves to the upper outlet of the furnace, its temperature should be lower than the melting point of coal ash. The burners are equipped with differential, integral calculation or more complex calculation adjustment instruments such as: proportional regulator, PLC, large-scale computer control, etc., through the boiler temperature, steam pressure, steam flow, oxygen content in the flue gas, boiler feed water The detection of system and other factors can synchronously and continuously dynamically adjust the fuel volume and air distribution volume. Unlike traditional iron core transformers, it generates high-frequency and high-voltage electric sparks on the secondary through an internal ignition circuit. The fourth step is to install the flange on the boiler. In view of the fact that boilers are characterized by heavy low-frequency noise and a large noise radiation range, the basic methods and principles of noise treatment in boiler rooms are proposed: noise source is the main treatment, the propagation path is supplemented, and the sound receiving area is properly treated. How to install and maintain gas burning appliances. Gas burning appliances are different from ordinary commodities. The installation and maintenance of gas burning appliances is of great significance for meeting the needs of gas users for gas safety. When maintaining the burner, be sure to cut off the power supply. Imported gas burners Imported gas burners are mainly composed of three parts, namely gas system, wind system and control system. The atomization consumes less air and energy consumption. Strengthen the regulation of boiler combustion to avoid the generation of reducing gas due to oxygen-deficient combustion of coal, which reduces the ST value of coal and causes coking in the boiler.

Prevent the iron sword from entering the bin when feeding! If the equipment is damaged due to poor fuel or iron objects entering the bin, it will not be covered by the warranty; the furnace of the boiler or other used equipment is negative pressure, and excessive positive pressure is strictly prohibited. The imported gas burner is mainly composed of three parts, namely the gas system, the wind system and the control system. The gas system can provide combustion gas. The selection of different types of burners 1 Burners are divided into pressure atomization, medium atomization, and rotary cup atomization according to the atomization method. It is characterized by uniform atomization, simple work, fewer consumables, and lower cost. At present, most road construction machinery use this type of atomization model. Fourth, this technology separates the concentration of pulverized coal, and all the concentrated primary air pulverized coal is arranged in the lower part of the combustion area, which is equivalent to increasing the height of pulverized coal burnout and reduction, which is beneficial to improve boiler combustion efficiency and reduce emissions. Atomization method If heavy oil is selected as the fuel, the heavy oil burner can be selected according to the viscosity of the fuel oil. The mechanical atomization burner medium atomization burner F. Regional environment Different regions and different environments have different requirements for the burner. The burner pressure regulator is an important part of the safe incineration of liquefied petroleum gas, which is connected between the steel cylinder and the stove. Aiming at the corrosiveness of alcohol-based fuels, we have specially developed anti-corrosion pure copper solenoid valves. The solenoid valve circuit adopts a programmable controller integrated circuit vector control output, so it can avoid the coil magnetic saturation and control the magnetic flux of the coil. Voltage, current, and frequency are properly controlled, so that the solenoid valve can operate 24 hours a day under high temperature and harsh conditions. How to ignite the burner boiler and how to make the burner boiler a safe and effective fire to ensure the normal operation of the burner boiler. The burner has the characteristics of high combustion efficiency, stable combustion performance, superior flame performance, high heat recovery capacity, simple structure and easy operation. In order to prevent an explosion accident in the furnace, the furnace pressure control system is designed with high furnace pressure control, interlock and energy.

The burner pressure regulator can not only change the high-pressure LPG in the bottle to low-pressure LPG from 980kPa to about 100kPa, but also stabilize the low-pressure gas within the pressure range suitable for safe incineration of stoves. Fast ladle hot turnaround molten steel is poured back in time after pouring, try not to press ladle, the shorter the red packet turnaround time, the better, so that the ladle is less affected by the thermal stress caused by the rapid cooling and rapid heating. The differences are as follows: the valve body structure is different, the single seat valve is a straight-through type, the flow path is complicated, the angle valve is an angle shape, the flow path is simple, has self-cleaning performance, can be applied to occasions with dirty media, and can be further improved to prevent blocking angle valve. In order to prevent the occurrence of water hammer accidents, the opening and closing speed of the valves of the water supply pipeline and the economizer pipeline should be slow to avoid accidents of full water and soda water. The burner has the characteristics of safety and reliability, stable performance, and uniform temperature field. The burner is made of special materials, high temperature resistance and long service life. Then the actual fuel consumption per ton of aluminum smelting is: Therefore, the fuel saving rate when using the RCB burner is: where: B'-the fuel consumption per ton of aluminum smelting without the regenerative burner, B-using RCB The unit fuel consumption of the burner, kgt. The needle felt filter bag is not easy to be damaged due to excessive buckling, so it should not be too tight with the keel device, thereby improving the dust removal effect. The first biomass pellet hot blast stove is energy-saving: the warm and clean smokeless biomass boiler uses advanced and scientific combustion technology to completely burn the fuel, the fuel burn-out rate is close, and there is only a small amount of ash after combustion; the heat is removed by the five-pass heat exchange method Fully absorb, at the same time, equipped with a waste heat utilization device with independent intellectual property rights to achieve a flue gas temperature below 100 degrees, and boilers above 4MW can be equipped with online detection. Carrying out radiation heat exchange; combustibles without embers enter the ember chamber 7 and continue to burn. Burner structure The burner, as a highly automated mechatronics device, can be divided into five major systems from its realization: air supply system, ignition system, monitoring system, fuel system, and electronic control system.

In fact, how the burner pressure regulation works, now briefly introduces the operating principle of the lower pressure regulator, the burner pressure regulator, also known as the burner pressure reduction. Improve heat temperature. The calorific value of biomass pellet fuel made of different raw materials is different, so before purchasing biomass fuel, know which raw material is made. No. Biomass pellet hot blast stove is environmentally friendly: Biomass is an internationally recognized carbon-free zero-emission energy, which is a promoted renewable energy and an important part of the strategy; warm and clean biomass boilers do not have any dust removal and desulfurization equipment for direct emissions, environmental protection The index is far superior to the emission standards of coal-fired boilers, and it is an energy-saving and environmentally-friendly product promoted and used. Noise and thermal radiation hazards During combustion, thermal radiation may cause local deformation of the nozzle, malfunction of the ignition system, difficulty for operators to approach, and serious damage to the biomass burner or damage to local equipment and facilities. The five-burner adopts a type of acid-resistant pump, which has the characteristics of corrosion resistance, large flow and high pressure to provide the basis for the initial atomization. For safety reasons, the explosion tube and tube platinum wire are often coated with copper mesh on the explosion tube wall. The work is simple, the raw materials are abundant, and the cost is low. The reason for the short service life of the burner castable is the material of the anchor and the material of the anchor used. When the fire is normal but the exhaust smoke is not normal, the diesel fuel injected into the combustor is mixed and burned. When the air volume is appropriate, the atomized CO2 and water vapor exhaust is colorless.

Before merging the furnace, the trap of the pipe or sub-cylinder should be opened to discharge the condensed water, and the main steam valve should be slightly increased to warm the pipe. Precautions for burner debugging and maintenance When the burner fails to re-ignite continuously, it should be shut down to check whether the air supply system of the Belden burner is normal and whether the circuit connection is correct. The burner can be restarted after the fault is resolved. The different output forms of unipolar, bipolar, and intermediate grounded bipolar have their own advantages and disadvantages, some focus on safety, and some focus on flexibility. The third is to rationalize the layout. It is necessary to consider the distribution of biomass resources, climate characteristics, economic development and the supply and replacement of other power. In addition, it is necessary to consider the power consumption of local rural residents. When the fire is normal but the exhaust smoke is not normal, the diesel fuel injected into the burner is combusted while mixing. When the air supply is appropriate, the atomized CO2 and steam exhaust are colorless. The wood particles after work are fully burned in the combustion chamber, and the sulfur content is low. At present, most people do not know enough about the energy-saving, environmentally friendly, and easy-to-use characteristics of biomass products. Even many heat energy units do not know that there are biomass products. , Let alone understanding and application. Flameless gas burner The so-called flameless gas burner means that all the air required for gas combustion has been fully mixed with the gas before the burner nozzle, and the mixed gas is fully burned in the fire channel, with high combustion heat intensity and burning speed It depends entirely on the chemical reaction speed. Due to the high temperature in the fire channel, the flame temperature is close to the theoretical combustion temperature of gas. In order to reduce the emission of air pollutants, we must first reduce energy consumption, and secondly, control emissions. Try to use particles made of pure wood. Normally, pure wood particles are not easy to coke. If coking occurs, the raw materials must be mixed by the supplier when they are purchased. Burner-check the gas pipe group to confirm whether the manual closing adjustment is sensitive and the valve handle is installed.

Burner features: environmental protection and cleanliness is outstanding. The production process of fuel products adopts a clean process without three wastes. It not only improves the heat rate and heat quality, but also reduces the oxidation burning rate of the workpiece, and increases the furnace output. Different types of biomass have different main constituent elements and different calorific values. Minimize the crushed material particles. Partially squeezed particles are very hard and will cause insufficient combustion. The third category: large-scale biomass thermal energy boiler. The low-noise fan is a silent and high-speed fan. The unique sound-absorbing effect of the metal fiber three-dimensional porous network structure makes the environmental protection burner at least one level lower than the traditional burner. In the case of a long shutdown time, the operator should close the gas pipeline valve to avoid gas leakage. Flameless gas burners are divided into two types: ejector type and blast type. This type of burner is mainly used in industrial heating furnaces. Adjust the ratio of empty gas after fire to achieve a good state. Basic knowledge of burner A burner is a device that converts the chemical energy of fuel into heat.

Another benefit of low-oxygen combustion with low metal oxidation burns is that it can reduce the oxidation burns of hot metals. Now that the motor can start normally, the oil pump is not stuck. Combustion engines conform to the development trend of environmental issues. Environmental issues are one of the serious challenges facing the century. In order to prevent the occurrence of furnace explosion accidents, reliable furnace safety devices should be installed, such as explosion-proof doors, interlocking, alarm, trip systems and ignition procedures. The technical requirements for the shell material of the flameless burner are very high, and to withstand high temperature thermal vibration and oxidation, ceramic materials are generally used as the shell. The flame diameter of the burner is generally required to be no more than 6m, and it is better to adjust it wider, generally set to about 1:41:6. The low-noise fan is a silent and high-speed fan. The unique noise reduction effect of the metal fiber three-dimensional porous network structure makes the environmental protection burner at least one level lower than the traditional burner. The third step begins to test the burner effect. When adding fuel with more impurities or larger particles, please pay attention to putting iron and other materials into the material box to avoid damage to the burner. This kind of application is mainly based on biomass pellet fuel, which is used more in Northern Europe. Because there are no related products in China, its application is almost blank.

Since the overall form of the combustor is to analyze the different types of gas combustors so important to the entire combustor series of equipment, we might as well consider whether the entire preventive mechanism setting can be reflected in the product itself. Regardless of whether it is a furnace with a regenerative burner or a regenerative industrial furnace, it is relatively stable and reliable in actual operation, and has achieved relatively good economic and social benefits. The metal fiber carrier is stronger than the porous ceramic plate, is not afraid of cold water hammer, has a certain mechanical strength, and can be processed into any shape. After the burner is guaranteed: all excluding tax, the ticket is only value-added. The technical requirements for the shell material of the flameless burner are very high. To withstand high temperature thermal vibration and oxidation, ceramic materials are generally used as the shell. This kind of burner is also only used for small boilers, it is suitable for all kinds of low-pressure gas, and does not blow the device. There are many brands of burner flames. At present, the flame detector is widely used, and it is also a better method of flame detection. The low-noise fan adopts a silent high-speed fan. The upper metal fiber three-dimensional porous mesh structure has a unique sound-absorbing effect, which makes the noise of the environmentally friendly burner lower than that of the traditional burner. Third, the thermal advantage is obvious, and the second pollution is avoided. Provide a fire source for the igniter, slowly open the fuel gas supply valve of the igniter, and the igniter should ignite immediately.

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The sensor manufacturer tells you what types of sensors are available?

There is a device that plays an important role in the process of information transmission, processing, storage, display and record control. This is the sensor that people often say. This device can feel the measured information, and then it will also The information is transformed into a regular electrical signal or other easily recognizable form and delivered to the needy. In the process of human beings obtaining information from the outside world, various types of sensors have been made according to their needs. The sensor manufacturer will tell people about the types of sensors below.

Accelerometer

     In fact, people refer to sensors as electrical facial features, which means the extension of human facial features. By using sensors, we can monitor information that cannot be felt by human facial features, so that we can make some judgments based on the information obtained. You see, now that humans can accurately predict the sky and the changes in ocean tides, etc., it is because of the use of sensors like devices. However, human beings are still unable to accurately predict earthquake information, that is, the sensors in this area have not reached the degree of accuracy that they should be. According to the introduction of the sensor manufacturer, there are really many classifications of sensors.

Accelerometer

     Introduction by sensor manufacturers The common types of sensors are divided into resistive type, variable frequency power type, weighing type, resistance strain type, piezoresistive type, thermal resistance, laser sensor, temperature sensor, photosensitive sensor, vision sensor and so on. Different sensor types have different directions. Take the temperature sensor as an example. It detects, adjusts and controls the system according to changes in temperature parameters. In chemical industry, metallurgy, petroleum, electric power, water treatment, pharmaceuticals and food And other industries play an important role. Therefore, those who need it can choose the type of equipment according to their needs, and pay attention to the inspection of sensor manufacturers, and choose a regular manufacturer.

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Chinese shoe manufacturing process

Everyone must wear shoes. The most common shoes are sports shoes. Let me introduce the manufacturing process of sports shoes. There are many processes for making a pair of shoes, such as punching, sewing and sewing, and then forming. 

First, the manufacturing process of sports shoes is to open the version. After the version is opened, take the paper version to make the punch. Punched, loaded and sent for high-frequency, high-frequency compression is the next step is the needle car, every worker in the noodle shop is very careful to do one process after another, the upper surface of the sports shoes is from the car entrance After the door starts, the car will be protected from the eye, the side of the car, etc. After the previous process is completed, the car will be the rear lane. The rear lane is the heel of the car net and the tongue is finished. Too.

Sewing process

Sewing process behind the sewing machine

The next step is molding. The molding of sports shoes is started by the net front. After applying the glue, there are two kinds of glue moisture, the top glue and the bottom glue. After these are done, the oven heel is closed. This is technical. First, bake the glued shoes and take them out to stick with the sole. After the sole is glued, the sports shoes are ready. Finally, the packaging, Pack and ship.

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What are the advantages of injection molding machine

①According to the performance of raw materials for products, it is possible to choose to replace the screw form with different structure suitable for its plasticizing conditions.

②According to the plasticizing conditions of the raw materials for products, there must be a stable heat source for heating and heating.

③According to the needs of product molding quality, the accuracy of one-time feeding quantity should be guaranteed.

④In order to ensure the plasticizing quality of raw materials, the screw should have an adjustable and stable back pressure when working.

⑤According to the needs of different raw materials after melting and molding, the injection molder must have the injection pressure and melt flow rate required by the process.

⑥ The mold clamping force during mold formation is greater than the expansion force of the melt injected into the mold cavity.

⑦Use the appropriate mold temperature to control the cooling and solidification molding speed of the melt in the mold cavity.

⑧ The melt flow channel in the forming mold is unobstructed, and the mold cavity has a certain draft angle. According to the structural shape of the product, if necessary, a product ejection device should be provided in the forming mold.

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TPU injection molding machine is widely used in various fields

TPU injection molding machine has the ability to mold complex, precise dimensions or densely textured plastic products with metal inserts in one pass. People in all areas of daily life. With the rapid development of the plastics industry today, injection molding machines occupy an important position in terms of both quantity and variety. The total production of plastic injection machines accounts for 20% -30% of the entire plastic molding equipment, thus becoming the fastest growing plastic production machine in the world today. One of the most models. According to relevant statistics, from 1996 to 1998, China exported 8,383 (sets) of injection molding machines and imported 42,959 (sets) of injection molding machines. Among them, China's output of injection molding machines reached 20,000 in 1998, and its sales accounted for the total sales of plastic machines. 42.9%.

Injection molding machine is currently one of the fastest-growing plastic machinery in China, with a small gap between industrial and developed countries. However, it mainly refers to ordinary injection molding machines. In terms of most varieties of extra large, various special, special and precision injection molding machines, some products are still blank, which is the main gap with industrial developed countries.

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Development of China's rubber machinery industry

China's rubber machinery industry production has soared year after year, sales have skyrocketed, showing a trend of blowout development. China's rubber machinery is rising in the east of the world and has begun to establish its status as a great power.

In 2004, the sales revenue of China's rubber machinery industry exceeded 6 billion yuan, achieving leapfrog development. Among them, the sales revenue of 26 companies reached 4.57 billion yuan, a year-on-year increase of 57%; the export delivery value was 453 million yuan, a year-on-year increase of 171%; products The sales rate reached 99.2%. In 2005, the growth rate of China's rubber machinery industry was significantly slower than the "blowout" market in 2003 and 2004, but profits continued to increase, and foreign exchange earnings from exports also increased significantly.

In 2006, China's 29 main units of rubber machinery realized 5.26 billion yuan of rubber machinery output value, an increase of 16.1% over the previous year; sales revenue was 5.248 billion yuan, an increase of 14.8% over the previous year. Based on this estimate, China's rubber machinery sales revenue reached 7.2 billion yuan, an increase of 10.8% over the previous year.

In the first half of 2007, 25 major rubber machinery companies in China achieved sales revenue of 2.686 billion yuan, a year-on-year increase of 17.4%, and a profit growth of 53.7%, indicating that the economic benefits of the rubber machinery industry have further improved.

At the same time as China's rubber machinery industry continues to develop, technological innovation and industrialization capabilities still need to be strengthened. Existing patents are mainly concentrated in a small number of companies, and are mainly concentrated in vulcanizing machines and forming machines. In fact, there is still a lot of potential to be tapped in the transformation of scientific and technological achievements. The lack of awareness and influence of China's rubber machinery brand is also a major factor restricting its "strong", and most companies have a slower pace of internationalization. In addition, the after-sales service of products is a soft underbelly, and a complete global service system has not yet been established. .

Chinese rubber machinery manufacturers must establish their own technological innovation system, increase product development efforts, and develop a number of new products with independent intellectual property rights. And establish the concept of a large global market and accelerate the transition from a "domestic" factory to an "international" enterprise. At the same time, enterprises should also establish brand awareness, strive to create China's rubber machinery brand, and then to create the world's rubber machinery brand.

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Understand the structural characteristics of the head of shoe machine equipment

The function of the head of the shoe machine equipment is to transform the plastic melt that rotates into parallel and linear motion, introduce it into the mold sleeve evenly and smoothly, and give the plastic the necessary forming pressure. Let's take a look at the structural characteristics of the shoe machine equipment head!

Automatic PVC TPR Shoe Injection Moulding Machine, SLM-6-02

 The extruder divides the machine head into a beveled machine head (120o included angle) and a right-angle machine head according to the angle between the head material flow direction and the screw centerline.

The shell of the machine head is fixed to the fuselage with bolts. The die in the machine head has a core seat and is fixed to the wire inlet port of the head with a nut. The front of the core seat is equipped with the core, the core and the core seat. There is a hole in the center for passing the core wire. There is a pressure equalizing ring on the front of the machine head for equalizing the pressure. The extrusion molding part is composed of a die sleeve and a die sleeve. The position of the die sleeve can be adjusted by the bolt through the support. In order to adjust the relative position of the mold sleeve to the mold core, it is easy to adjust the uniformity of the thickness of the extrusion cladding.

The head is equipped with a heating device and a temperature measuring device.

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Several classifications of injection molding machines

The injection molding machine is divided into plunger injection molding machine and screw injection molding machine according to the plasticizing method. According to the transmission mode of the machine, it can be divided into hydraulic type, mechanical type and hydraulic-mechanical (link) type. , Semi-automatic, manual injection molding machine. Let's introduce the classification of injection molding machine in detail for everyone!

Automatic disc two-color vertical injection molding machine

Horizontal injection molding machine This is the most common type. The mold clamping part and the injection part are on the same horizontal center line, and the mold is opened in the horizontal direction. Its features are: short body, easy to operate and maintain; low center of gravity of the machine, relatively stable installation; the product can be automatically dropped by gravity after ejection, easy to achieve fully automatic operation. At present, most injection molding machines on the market use this type.

Vertical injection molding machine The clamping part and injection part are on the same vertical center line, and the mold is opened in the vertical direction. Therefore, the floor space is small, the inserts are easy to install, the molds are more convenient to be loaded, and the material falling from the hopper can be plasticized more uniformly. However, after the product is ejected, it is not easy to fall automatically. It must be removed by hand, and it is not easy to realize automatic operation. Vertical injection molding machines are suitable for small injection molding machines. Generally, injection molding machines below 60 grams are used more, and large and medium-sized machines are not suitable.

Angle injection molding machine The injection direction and the mold interface are on the same surface. It is especially suitable for flat products where gate marks are not allowed on the machining center. It occupies a smaller area than a horizontal injection molding machine, but the insert placed in the mold is easy to fall down. This type of injection molding machine is suitable for small machines. Multi-mode turntable injection molding machine It is a special injection molding machine with multi-station operation, which is characterized in that the mold clamping device adopts a turntable structure, and the mold rotates around the rotation axis. This type of injection molding machine makes full use of the plasticizing ability of the injection device, which can shorten the production cycle and improve the production capacity of the machine. Therefore, it is especially suitable for large-volume products with long cooling and setting time or requiring more auxiliary time due to the placement of inserts Production. However, due to the large and complex clamping system, the clamping force of the clamping device is often small, so this injection molding machine is used more in the production of plastic shoe soles and other products.