Synchronous system of injection molding machine and oil circuit control method thereof

Abstract

The invention provides an injection molding machine synchronizing system and belongs to the technical field of hydraulic transmission, aiming at solving the problem of low working efficiency of existing injection molding machine structures. The injection molding machine synchronizing system comprises an oil tank used for storing oil, a working unit provided with a working oil way used for conveying the oil, a main unit provided with a first oil way and a second oil way which communicate with each other and are used for conveying oil, and an auxiliary unit provided with an auxiliary oil way used for conveying oil, wherein the first oil way is connected with the working oil way, and the auxiliary oil way communicates with the working oil way. The system has the advantages of being reasonable in design, capable of realizing synchronization and high in working efficiency.

Description

technical field [0001] The invention belongs to the technical field of hydraulic transmission, and relates to a synchronous system of an injection molding machine and an oil circuit control method thereof. Background technique [0002] Injection molding machines are usually composed of injection system, mold clamping system, hydraulic transmission system, electrical control system, lubrication system, heating and cooling system, safety monitoring system, etc. The function of the mold clamping system is not only to ensure the opening and closing of the mold and the ejection of the product, but also to provide sufficient clamping force to the mold after the mold is closed to resist the cavity pressure generated by the molten plastic entering the cavity and avoid the mold from opening And lead to the occurrence of unqualified products. [0003] In order to ensure the quality of injection molding products, the clamping force of the injection molding machine must be greater than...

AI Technical Summary

Problems solved by technology

[0003] In order to ensure the quality of injection molding products, the clamping force of the injection molding machine must be greater than the cavity pressure. The clamping force range of the same injection molding machine or the same hydraulic transmission system cannot meet the needs of various working pressures. If a high clamping force is used Injection molding machines have higher production costs

[0004] In addition, the mold opening and closing of the injection molding machine is a cyclic process. Each cycle includes mold closing, clamping cylinder reset, brake, high-pressure mold clamping, injection, pressure relief, mold opening and other actions. Most of the existing injection molding machines use one The hydraulic transmission system performs related work. During the cycle of mold opening and closing, each action must be performed in sequence, which takes a lot of time.

Images