Plastic injection mould is generally composed of forming parts, pouring system, guiding part, pushing mechanism, temperature control system, exhaust system, supporting parts, side parting and core pulling mechanism. Simple description of each part of the injection mold Figure 1-1 Basic structure of the plastic injection mold 1. The forming parts refer to the parts related to the forming cavity of the moving and fixing parts. 2. The pouring system is to melt the plastic 3. Guide part in the injection mold, the guide part is used to guide the dynamic and fixed mold of the mold, so that the mold can be accurately matched when the mold is closed. 4. Push out mechanism refers to the device that pushes out the plastic parts from the mold after parting.
Read more →The use of injection molding machine is becoming more and more of a concern in the industrial industry currently,. Do you know why people want to use injection molding machine? What good does it bring? Here are some of my views. Only for reference. Plastic Moulding Advantages 1.Fast Cycle times can be as low as 10 seconds. Combine that with a multi-impression injection moulding tool and you get a LOT of products very quickly. Generally speaking， it takes a bit longer as it’s a specialist material and has a lot of features to be moulded correctly, but at about 50 seconds you’d still get 70 parts per cavity per hour. CNC machining a one-off would take half a day – 3D printing it even longer! 2. Low cost
Read more →In the existing injection molding industry are faced with: Raw material increase Labor costs have skyrocketed Difficulty in recruiting staff Large turnover of personnel Product price decline The problem of increasingly fierce competition in the industry. I njection molding industry has entered the era of transformation, small profit and reshuffle, injection molding workshop management needs to establish a “scientific, perfect, systematic, standardized” operation management system, so that “everything is managed, everyone is in charge” of the working atmosphere of the department, for the injection molding workshop each post work efficiency improvement, manpower reduction has the following measures and suggestions: First, the upper and lower mold workers to improve work efficiency, reduce manpower measures 1. Do a good job in the production planning arrangement to reduce
Read more →First, the working principle of injection molding machine Injection molding machine for short injection molding machine. Injection molding is the use of plastic thermophysical properties, the material from the hopper into the barrel, the barrel outside the heating ring heating, so that the material melt, in the barrel is equipped with external power motor drive rotating screw, material under the action of the screw, along the screw groove forward transportation and compaction, the material in the external heat and screw shear under the double action gradually plasticized, melting and homogenization, When the screw rotation, the material in the screw groove friction and shear force under the action, the molten material pushed to the head of the screw, at the same time, the screw in the material reaction backward,
Read more →Injection molding process Mobile phone shell is usually made of PC(polycarbonate) or PC+ABS material molding, due to the relatively poor liquidity of PC, so the process is usually filled with high mold temperature, high material temperature; The gate used is usually the point gate, and graded injection molding should be used when filling, to find the gate position and the V-P(injection – pressure maintaining) switching position, which will be of great help to solve the gate mark and underinjection fly-side and other anomalies. The following is the main molding conditions of mobile phone products, introducing the melt temperature, mold temperature, injection speed, back pressure and other molding parameters setting points for attention. Melting temperature and mold temperature The optimal setting of molding temperature is related to many factors,
Read more →1.1 Introduction to the working principle of injection molding The working principle of injection molding machine is similar to that of syringe infusion. It uses the thrust of screw (or plunger) to inject the plastic that has been plasticized into the closed injection mold cavity at high pressure and high speed. After cooling and curing, plastic products with the shape of the mold cavity are obtained. Injection molding is a cyclic process, each cycle mainly includes: quantitative feeding a melting plasticizing a pressure injection a filling cooling a mold lifting parts. After removing the plastic part, the mold is closed again and the next cycle is carried out. 1.2 Application of injection molding machine Injection molding processing method can be shaped complex shape, complex structure, high dimensional precision
Read more →The plastic bottles we often drink have triangular symbols on the back for plastic recycling. The triangles have 1-7 numbers, each representing a different material. The number 1 represents PET, or polyethylene terephthalate Mineral water bottles, carbonated drink bottles are made of this material. Dong Jinshi pointed out that hot water can not be recycled in beverage bottles. This material is heat-resistant to 70℃, which is only suitable for warm or frozen drinks. When loaded with high temperature liquid or heated, it is easy to deform and dissolve harmful substances to human body. Scientists found that after 10 months of use, the plastic could release carcinogens and become toxic to humans. So when you’re done, throw it away. Don’t use it as a water cup, or use it
Read more →Prepare the vertical injection molding machine before starting Check whether each lubrication part is fully lubricated; Check whether the oil pump has abnormal noise; Install and tighten the mold carefully, and pay attention to safety when loading and unloading the mold; Adjust pressure at all levels; Set all levels of temperature. Manual operation and adjustment of vertical injection molding machine Adjust the position of each switch manually to ensure the safety of the die. Set the manual button ON the electronic control panel to ON(open). When the machine is operated manually, each action button ON the electronic control operation panel can only be operated when the button is pressed (ON), and the action disappears when it is released. Mold adjustment: First adjust the die close high voltage proximity
Read more →Several key points to buy injection molding machine: With the rapid development of the plastic industry today, injection molding machine occupies an important position both in quantity and variety. Injection molding machine has the function of forming plastic products with complex appearance, accurate size or dense texture with metal inserts. It is widely used in national defense, mechanical and electrical, automobile, transportation, building materials, packaging, agriculture, culture, education and health and People’s Daily life in various fields. The market is full of various models, different uses of injection molding machine, and how to buy a satisfactory injection molding machine, and what matters to pay attention to when buying injection molding machine, for users has been a very troubled problem. Point 1: Technical parameters of injection molding machine.
Read more →First, classification of injection molding machine: Due to the structure and variety of injection products, so used for molding injection products injection machine types are more. 1. Classify raw materials according to plasticizing and injection methods. 2. Classification according to the shape and structure of the injection machine. 3. Classification according to the processing capacity of injection molding machine. 4. Classification by special purpose of injection machine. According to the classification of plasticizing and injection of raw materials, the injection molding machine can be divided into three kinds: (1) plunger type, (2) reciprocating screw type and (3) screw plasticizing plunger injection type. According to the different shape and structure of the injection machine, it can be divided into (1) vertical injection molding machine, (2) horizontal injection machine, (3)
Read more →How does traditional machining break through the dilemma? The market share of injection caps is gradually expanding, and with the increasing appearance demand of consumers, the role of bottle caps is not only reflected in the sealing, they pay more attention to the appearance of products, such as modeling, refinement, finish and so on. It is bound to have an impact on the production technology of the bottle cap. How to improve the production efficiency while ensuring the quality has become a technical problem in the manufacture of the bottle cap mould. Suction machine will be mixed material into the injection molding machine barrel, heated in the barrel to melt and plasticize state, injected into the mold cavity, cooling in the cavity, demoulding, and then through the ring
Read more →Do you know the types of injection molding machines？ Injection molding machine is divided into the following five types: Vertical injection molding machine Features: Easy to achieve insert molding. Because the surface of the mold is facing up, the inserts are easily placed and positioned. The lower template is fixed and the upper template is movable. If the pull-belt conveying device is combined with the mechanical palm, the automatic insert molding can be easily realized. The weight of the mold is supported by the horizontal template for up and down opening and closing action, will not occur similar to the horizontal machine due to the mold gravity caused by the forward fall, so that the template can not open and close the phenomenon. Equipped with rotary table, mobile
Read more →(1) Injection system Injection system function: injection system is one of the most important parts of injection molding machine, generally have plunger type, screw type, screw preplastic plunger injection type 3 main forms. At present the most widely used screw type. Its function is that, in a cycle of the plastic injection machine, a certain amount of plastic can be heated in a specified time after plasticizing, under a certain pressure and speed, the molten plastic is injected into the mold cavity through the screw. After injection, the molten material injected into the mold cavity is kept in shape. Composition of the injection system: The injection system is composed of a plasticizing device and a power transmission device. The plasticizing device of screw injection molding machine is mainly
Read more →INSTANTLY INCREASING YOUR PRODUCTIVITY IN INJECTION MOLDING IS EASY IF YOU PAY ATTENTION The company is footing the bill through overtime pay and revenue loss, and even considers investment in additional production capacity. Meanwhile, a simple output increase could be realized by just being critical of the productions at hand. WHAT IS THE CYCLE TIME IN INJECTION MOULDING? The cycle time in injection molding is the total time needed to complete the stages of the molding process: Closing the mould Material injection Holding stage to fill and cool and avoid sink marks Opening the mould Eject or release the part OUR RECOMMENDED APPROACH TO REDUCE THE CYCLE TIME IN PRODUCTION M-Box helps you to monitor: Total cycle time (stage 1-5) Mould closed time (stages 2 and 3).
Read more →Injection molding machine is usually composed of injection system, closing system, hydraulic transmission system, electrical control system, lubrication system, heating and cooling system, safety monitoring system and so on. (1) Injection System Parts of Injection Molding Machine Injection system function: injection system is one of the most important parts of injection molding machine, generally have plunger type, screw type, screw preplastic plunger injection type 3 main forms. At present the most widely used screw type. Its function is that, in a cycle of the plastic injection machine, a certain amount of plastic can be heated in a specified time after plasticizing, under a certain pressure and speed, the molten plastic is injected into the mold cavity through the screw. After injection, the molten material injected into the mold
Read more →There are the following points for attention in the maintenance of screw tube of injection molding machine: Do not start the machine when the barrel does not reach the preset temperature. The new electric heating is generally required to reach the set temperature 30 minutes before operating the screw. If the machine stops for more than half an hour each time, it is best to close the blanking port and shoot clean the material in the cylinder, and set the insulation Avoid foreign matter falling into the barrel and damaging the screw and barrel. Prevent metal debris and debris from falling into the hopper. If the recycled material is processed, magnetic hopper should be added to prevent iron filings from entering the barrel. The use of anti-salivating
Read more →Each enterprise needs to develop molds for product production. In order to improve the mass production speed of products to a greater extent, so that product quality can be guaranteed, so that the products can enter the market quickly, injection molds can be said to have a crucial impact, which directly determines whether the product production meets good quality standards and precision. Now traditional molds can no longer meet the requirements of high-precision product production. Many enterprises will directly choose injection molds. It is very important to know the eight major systems of injection molds and choose professional manufacturers. 1. Eight systems of injection mold The eight basic systems of injection mold are: mold frame system, molding parts system, pouring system, navigation and positioning system, ejection system, temperature
Read more →Working principle of injection molding machine With the continuous improvement and expansion of the information technology foundation, the mechanical products in various industries are gradually realizing the operation mode of intelligent production. Especially in the machinery manufacturing industry, the improvement of the performance of the product itself and the perfection of the working principle will make the product itself have more market profit share in the market. In this regard, we will talk about the working principle of injection molding machine. The working principle of the injection molding machine is similar to that of the syringe used for injection. It is a process of injecting the plastic that has been plasticized into the closed mold cavity with the thrust of the screw (or plunger) and then getting the
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