Injection device of cold-chamber die casting machine

Abstract

The invention discloses an injection device of a cold-chamber die casting machine. Improvement is made based on the conventional injection device of the homemade cold-chamber die casting machine, and the time for conversion from a low speed to a high speed in an injection process can be shortened and simultaneously the pressure building-up time for pressurizing injection also can be shortened only by adopting a usual hydraulic valve to execute control, so the key performance of the cold-chamber die casting machine in terms of an injection system is improved and the application range of the cold-chamber die casting machine is expanded. The injection device has good effect for cast products requiring high speed and short injection time, such as magnesium alloy die castings, thin-walled die castings, die-castings of complex shapes and the like.

Description

technical field [0001] The patent of the present invention relates to a cold chamber die-casting machine injection device, especially a cold chamber die-casting machine injection device that requires high-speed injection, rapid pressure build-up, and rapid injection and pressurized injection in a short period of time. Background technique [0002] A good cold chamber die-casting machine must have high injection performance, so that it can be used in a wider range and the qualified rate of die-casting products is higher; while the injection system of most existing domestic cold chamber die-casting machines , in the application field that requires high-speed die-casting, it cannot show high performance. Its shortcomings are mainly as follows: 1. The injection speed is not fast enough. For many die-casting products, due to its short rapid injection stroke, Often the injection has ended, but the injection speed has not risen to the maximum speed it can reach. When the metal liqu...

AI Technical Summary

Problems solved by technology

[0002] A good cold-chamber die-casting machine must have high injection performance, so that it can be used in a wider range and the pass rate of die-casting products is higher; while the injection system of most existing domestic cold-chamber die-casting machines , in the application field that requires high-speed die-casting, it cannot show high performance. Its shortcomings are mainly as follows: 1. The injection speed is not fast enough. For many die-casting products, due to its short rapid injection stroke, Often the injection has ended, but the injection speed has not ris

Images