News

Vertical injection molding machine according to the arrangement in the form of classified mainly according to the arrangement relationship between the injection screw axis rail template motion classification, parallel and horizontal horizontally, vertically and parallel vertical, perpendicular to each other for the angle type. 1.1 horizontal injection molding machine has the following advantages: low center of gravity of the machine body low, smooth operation: in favor of manipulation and maintenance of: molded articles can be used to automatically fall under its own weight, easy to implement automatic operation, this should be widely applied. Large, medium and minicomputers are applicable, at home and abroad is the most basic form of the injection molding machine. After years of technological development, horizontal injection molding machine is subdivided into song type, direct pressure, fully automatic three series. According to the level of precision molded plastic products can be divided into common type and precision two categories. 1.2 vertical injection molding machine has the following advantages: small footprint: easy disassembly mold; insert molded articles easy to install. The disadvantage is: products tend to top out by hand or other means to remove products, easy to automate, higher body stability is poor, add materials and maintenance inconvenience. Currently mainly used in the injection amount of 60G or less minicomputer. 1.3 angle type injection molding machine of its advantages and disadvantages between lying, standing between two machines, container material by parting surface when the article is molded into the mold cavity, it is particularly suitable for forming the center is not allowed to leave the gate mark products. If horizontal or vertical injection molding machines, multi-cavity mold must be designed to offset or side, often limited by the size of the machine template. 2 Press machining capabilities we are generally used to indicate the parameters of the injection molding machine processing capacity of the machine model specifications where indicated, there is clamping force and injection quality, and most of the clamping force that in the past also useful for clamping force and injection quality At the same representation. For example 1 Haitai brand HTL2000-F5 (F6) injection molding machine, HT represents Haitai brand, L represents the series, and 2000 represents the machine's clamping force of 2,000 tons or 2000 * 10 kN (KN); F5 (F6) configures grade. For example 2 Haitai brand HTE160-F5 (F6,7) injection molding machine, HT represents Haitai brand, L represents series, and 160 represents the machine's clamping force of 160 tons or 160 * 10 kN (KN); F5 (F6, 7) indicates that the configuration level. For example 3 ZS980 / 122 injection molding machines, ZS represents horizontal injection molding machines, 980 represents the machine and mold clamping force of 980 kN; 122 represents a standard machine screw (B) of the injection mass is 122 grams. Some European manufacturers also use the method "clamping force" and "injection energy," also said, such as: DH100-430 injection molding machine, DH represents the manufacturer's brand. 100 denotes a molding machine clamping force of 100 kN * 10, 430 represents the power injection of 430 kN * 10 cm

(1) temperature. Temperature has a significant influence on the performance of vertical injection molding machine plastic extrusion and preform. Enhance the vertical injection molding machine heating temperature results in the following: the ability to reduce the melt viscosity, improved melt flow, reduce the power consumption of vertical injection molding machine; may be appropriate to enhance the screw speed, without affecting the mixing plastics materials effect; help to improve the intensity with the brightness of the final product; help improve the transparency of the final product. However, the melt temperature is too high, easy to produce extruded parison sagging weight, causing the parison wall thickness longitudinal uneven; prolong parison blow cooling time; expand shrinkage of the final product; make pvc and other heat-sensitive plastic degradation, the parison strength Pc and other engineering plastics is significantly reduced. Therefore, we should follow this principle to set the heating temperature of the extruder, that is both smooth and uniform extruded parison, and not leave under the premise of the transmission system overload, to ensure a higher melt parison strength should be possible to adopt a lower heating temperature. When the heating temperature is set vertical injection molding machine, feed zone temperature should be relatively low, to prevent blockages in the charging port affect delivery of materials; high temperature compression section, in favor of mixing plastics materials; extruded sections temperatures can fall below the compression section, and higher than the feed zone, conducive to the stability and uniform feed to the nose. Heating apparatus Shenzhen vertical injection molding machine, generally adopt the electric heater, and air-cooled machine placement, to adjust the heating temperature of the vertical injection molding machine. To control the heating temperature deviation extruder, often adopt the proportional (P) Integral (I) derivative (D) temperature controller. Their role are: ① proportional action. Heating current with temperature deviation proportional relationship exists, the smaller the heating current, the temperature deviation is also smaller. ② integral action. Heating current is proportional to the time integral of the temperature deviation. Thus, even if the deviation is very small, after a certain time, it can also eliminate the static error, improve temperature control system static accuracy. ③ derivative action. Heating current is proportional to the temperature differential deviation of time. So, the faster the temperature deviation occurs, the corresponding change in the amount of heating current is also larger, can enhance the ability of the heating system to the outside world a sudden disturbance. Because of these effects, PID temperature controller allows the temperature deviation of the extruder control within ± 1 ℃, the power consumption is also reduced by about half. (2) Melt pressure. Head into the melt pressure should be uniform. Vertical injection molding machine appropriate to enhance the melt pressure, can make the material mixing uniformity, so that stability of the parison and final article. For high molecular weight polyethylene, high density polyethylene with a low density polyethylene blend, coloring with masterbatch polymer melt pressure sufficient parison can have a good appearance, reduce the "crystallization point" with the clouds shaped pattern. However, due to debris blocking stencil head, causing the melt pressure is too high, will increase the vertical injection molding machine load and machine damage, should be replaced, cleaning panels to maintain a stable pressure head into the melt. Adoption of low melt flow rate resin, extruder reduce the heating temperature, improve the extruder screw speed, etc., can enhance the melt pressure extruder. To control the pressure of the melt extrusion, melt pressure measuring instruments can be installed at the discharge section of the vertical injection molding machine. Melt pressure measuring instrument commonly used in a mechanical pressure gauge, hydraulic (oil, grease, mercury) pressure gauge, pneumatic gauges, electrical pressure gauges and the like. (3) Melt conveying speed. Melt conveying speed is large, the amount of vertical extrusion molding machine. Lifting the conveying speed of the melt, the weight can improve sagging parison, increasing the wall thickness of the parison. Melt conveying speed increases with the diameter of the screw increases, less affected by the head pressure. Enhance the extruder screw speed with the heating temperature, can be improved accordingly melt conveying speed. However, when the screw speed upgrade to a certain value, prone to melt fracture phenomenon. In the vertical injection molding machine plastic extrusion experience, these three factors are interdependent. At the same time, these three factors requires low volatility. If the temperature, pressure, melt conveying speed greater volatility, not only the parison wall thickness uniformity, repeatability subsequently deteriorated, but also the final product mechanical properties and dimensional stability with a greater difference in performance fell.

Modular, multi-component, composite hydraulic servo power source development For a long time the injection molding machine models, features, specifications and a single fixed invariance has been unable to meet market requirements. Customers due to the production of plastic products require frequent changes and considerations on the effective operation of the investment, plastics machinery industry needs to be able to provide maximum stroke injection machine, large clamping force injection small or large clamping force injection of a small amount of injection machine, mix material associated with injection molding equipment, with special peripheral devices supporting the injection molding machine, wood (or other material) and plastic injection molding machine blends, even for the processing of non-ferrous metals having a semi-solid thixotropic material injection machine, building blocks injection machine and other kinds of market demand for performance has become increasingly evident, which requires manufacturers of injection molding machines in time for the market to make the fastest targeted response. Personalized development of injection molding machine Personality development as reflected in mass production in the past and even dilute the mass production mode, while promoting injection molding machine modular design, technology integration, specialized production, improve purchasing power and international level, which requires both injection molding machine manufacturers in technical personnel, technical innovation to have a strong, also requires companies to accurately grasp the needs of individual customers in the first time. Development of Wisdom injection molding machine Will significantly improve the operational stability and reliability of the injection molding machine, plastic machinery effectively improve quality, high efficiency, low loss of production skill, and to achieve unmanned workshop, unmanned factory to provide a solid technical foundation, currently abroad, has there are a number of injection molding machine factory vigorously study the wisdom of the injection molding machine. Development of large-scale injection molding machine At present, the production of car body panels 8000kN clamping force injection molding machine has been developed, the greater the injection molding machine are endless. However, a variety of large-scale industrial production of plastic products demand is still evident, such as the production of small boats, sports boats production, 10000L even greater volume of plastic storage containers have been installed to generate demand.

When the vertical injection molding machine, when used, will encounter problems adjusting clamping force, which is not only related to whether the normal production and machinery to produce products to meet the requirements, the more important is the right adjust the mechanical clamping force can prolong machinery life. So, how to adjust the vertical injection molding machine clamping force? Here the specific analysis: 1, co-regulated switch-mode device, mold thickness adjustment capacity on both sides of the mold until the beginning of the fixed date, then disconnect the device transfer mode switch. 2, manually operated model, to make the mold open until the start transfer mode means reducing mold clamping force generated thick, disconnect the device transfer mode, slow mode-locked operation mode to reduce the thickness of the clamping force generated proportional, but if the mold thickness decrease too much, it can not clamping, therefore, we should take a progressive approach to reduce mold thick. 3. Repeat the above 2) adjusting operation until the machine twisted and guide post to generate sufficient clamping force until the clamping force is not so high, as long as the guarantee for injection molding injection molded parts or products can not produce flash, this ensures that the service life of the machine. 4, adjusting the clamping force to operate, you can not use express mode locking. 5, in the "low-pressure clamping termination limit switch; is released" Clamping stroke termination limit switch is pressed together at the moment, the pressure gauge will indicate clamping action clamping cylinder working pressure, the display time is very short, but also Express clamping reason can not be used. 6, showing the working pressure is generally more than the true pressure inside the lower clamping cylinder, it is not long-term use of the maximum rated working pressure clamping operation, to extend the life of the machine. The operating pressure generally exhibit the highest rated pressure 80% -85% is appropriate, such as maximum pressure 145kgf / cm2 have selected to 120kgf / cm2 pressure is more appropriate. 7, low clamping force is adjusted in order to maintain a low pressure clamping sensitivity, low pressure when adjusting the clamping force, low pressure should begin clamping numerical value 00 is set so that the clamping force is slightly higher than the low-pressure clamping encounter resistance, while starting to reach high pressure clamping operation. 8, can use an ordinary or express clamping operation to re-adjust the relevant limit switch for use with a mold clamping operation so smoothly.

With the current domestic-driven approach than the traditional upper structure to replace the three-phase AC induction motor with three-phase permanent magnet servo motor; fuzzy control method to complete the servo motor with variable pump control coordination matching control method. Vertical injection molding machine system total power loss control servo pump is mainly composed of two parts: A power loss) of the motor, this loss includes copper loss and iron loss of the motor with the mechanical loss. Usually this loss is unavoidable, only use high-performance motors to reduce losses. 2) loss of hydraulic power systems. Since the adoption of the servo motor variable displacement pump control system. This loss without throttling losses with overflow losses, but includes only volume loss with mechanical transmission loss due to leakage of the hydraulic system caused. Thus such a system total power loss is very small, with better energy efficiency.

All products have the performance of the product condition, and for 80% of the product in terms of performance is very important. For the injection molding machine is the same in terms of principle. Because the development of mechanical products used in and use the programs have a relatively large security scheme, so that the use of the injection molding machine of the most important is that performance! It should be understandable recognition. Using an injection molding machine of the most important properties that have several reasons: 1, also includes a different use and use of the structure and function of the safety performance of the most developed different conditions of use; 2, the heating / cooling system is the most performance-oriented, because the heating system is used to heat the barrel and the injection nozzle, if there is a problem that the performance of the entire injection molding machines will be developed between the paralysis; 3, but with the performance and safety monitoring device between the principle of similarities between energy efficiency also have some relevance to use. Using an injection molding machine is the most important thing is that this performance is that more emphasis on product performance, which horizontal injection molding machine, vertical injection molding machine under normal circumstances, all-electric injection molding machine, fully electric injection molding machines as well as energy-saving injection molding machine such as the use of these properties between the injection molding machine is also very obvious. The most important thing is the quality and safety association between use and performance. Professional select various injection molding machine professional choice DELHI machinery more professional trustworthy!

Address:TUYAP Center,Istanbul,Turkey Time:December 7-10,2016 location: CMEC9,HALL 10