zipper machinery system

Zipper machinery usually consists of injection system, mold clamping system, hydraulic transmission system, electrical control system, belt feeding auxiliary system, heating and cooling system, safety monitoring system, etc. The role of the injection system: the injection system is one of the most important components of the injection molding machine. Generally, there are three main forms: plunger type, screw type, and screw pre-plastic plunger injection type. The most widely used is the screw type. Its function is that in a cycle of the injection molding machine, after a certain amount of plastic can be heated and plasticized within a specified time, the molten plastic can be injected into the mold cavity through a screw under a certain pressure and speed. After the injection is completed, the shape of the molten material injected into the mold cavity is maintained. Composition of the injection system: The injection system consists of a plasticizing device and a power transmission device. The function of the clamping system: the function of the clamping system is to ensure that the mold is closed, opened and ejected. At the same time, after the mold is closed, sufficient clamping force is provided to the mold to resist the cavity pressure generated by the molten plastic entering the mold cavity, so as to prevent the mold from opening and causing the bad status of the product. The role of the hydraulic transmission system: realize the injection molding machine to provide power according to various actions required by the process, and meet the pressure, speed, temperature, etc. requirements of each part of the injection molding machine. It is mainly composed of various hydraulic components and hydraulic auxiliary components, among which the oil pump and the motor are the power source of the injection molding machine. Various valves control oil pressure and flow to meet the requirements of the injection molding process. The electrical control system and the hydraulic system cooperate reasonably, which can realize the process requirements (pressure, temperature, speed, time) and various program actions of the injection machine. It is mainly composed of electrical appliances, electronic components, instruments, heaters, sensors, etc. There are generally four control methods, manual, semi-automatic, fully automatic, and adjustment. The role of the heating system: used to heat the barrel and the injection nozzle, the barrel of the injection molding machine generally uses an electric heating ring as a heating device, which is installed outside the barrel and is detected by thermocouples in sections. Heat conduction through the cylinder wall provides a heat source for material plasticization; the cooling system is mainly used to cool the oil temperature. Too high oil temperature will cause various failures, so the oil temperature must be controlled. Another location that needs to be cooled is near the feeding port of the feeding tube to prevent the raw material from melting at the feeding port, resulting in the raw material being unable to be fed normally. This article is from City Machinery Co., Ltd., please indicate the source for reprinting: