The working principle of the electric injection molding machine

<p>The electric injection molding machine is a kind of machining injection molding machine with all power supplied by electricity. Thermoplastics can be injected and molded into a variety of molds. It is a kind of machine commonly used in the synthetic process of chemical materials. <a href="https://www.hisson.com/product" rel="noopener noreferrer" target="_blank"><strong>Injection molding machine</strong></a> is usually composed of an injection system, clamping system, hydraulic transmission system, electrical control system, lubrication system, heating and cooling system, safety monitoring system, etc.</p><p><br></p><p>The working principle of the electric injection molding machine is similar to that of the syringe used for injection. It is the technical process of injecting plasticized molten plastic into the closed mold cavity with the thrust of the screw (or plunger), and obtaining the product after curing and shaping.</p><p><br></p><p>Operation project of electric injection molding machine: operation project of injection molding machine includes the operation of the keyboard, operation of electric control system and operation of the hydraulic system. Select the injection process, feeding action, injection pressure, injection speed, ejector type, monitor the temperature of each section of the cartridge, regulate the injection pressure and back pressure, etc.</p><p><br></p><p>Usually, <a href="https://www.hisson.com/servo-injection-molding-machine" rel="noopener noreferrer" target="_blank"><strong>screw injection molding machine</strong></a> molding technology process is: first, the granular or powder plastic barrel, and with the rotation of the screw and barrel outer wall heating make a plastic melting condition, then the machine clamping and injection moved forward, make the nozzle with mold gate, and then to the injection cylinder into the pressure oil, make the screw push forward, thereby to high pressure and fast speed will be molten material into the low temperature closed mold.</p><p><br></p><p>By constant time and pressure insistence (also known as pressure retention), cooling, so that the solidification molding, mold can be opened to take out the product (the purpose of pressure retention is to avoid the flow of molten material in the mold cavity, mold cavity compensation material, and to ensure that the product has a certain density and standard service). The basic requirements of injection molding are plasticization, injection and molding.</p><p><br></p><p>Plasticization is the condition for completing and ensuring the quality of the molded product, and in order to satisfy the molding requirements, it is necessary to ensure that the pressure and speed of injection are met. Together, because the injection pressure is high, correspondingly high pressure occurs in the mold cavity (the uniform pressure in the mold cavity is usually between 20 and 45MPa), so it is necessary to have a large mold closing force. Thus it can be seen that the injection equipment and the molding equipment are the key parts of the injection molding machine.</p>