Knockout bar connection mechanism of injection molding machine

Abstract

The invention discloses a knockout bar connection mechanism of an injection molding machine. The knockout bar connection mechanism comprises a knockout piston rod, a knockout plate, a knockout bar, a moving plate and an ejector plate. One end of the knockout bar penetrates the moving plate to be connected with the ejector plate while the other end of the knockout bar is connected with the knockout piston rod through a knockout bar holder; the knockout bar holder is in threaded connection with the knockout piston rod; the knockout bar is provided with a circular groove circumferentially and a positioning ring is embedded in the circular groove; the positioning ring is fixedly connected with the knockout bar holder through bolts; the end of the knockout piston rod is provided with piston rod key slots radially, and the circumference of the knockout bar holder is provided with holder key slots radially; a locking washer is arranged between the knockout plate and the knockout bar holder and is provided with internal locking teeth and external locking teeth, the internal locking teeth are connected with the piston rod key slots, and the external locking teeth are connected with the holder key slots. The knockout bar connection mechanism has the advantages of convenience in installation and connection and high stability and strength.

Description

technical field [0001] The invention relates to a demoulding mechanism of an injection molding machine, in particular to a connecting mechanism of a demoulding rod of an injection molding machine. Background technique [0002] The demoulding mechanism is a necessary mechanism to realize the demoulding after the product is formed, and it is an important part of the injection molding machine, and the demoulding rod connection mechanism is the core mechanism of the demoulding mechanism. The structure of the current stripping rod connection mechanism is as follows: Figure 5 As shown, including demoulding piston rod 1', demoulding plate 3', demoulding rod 6', movable platen 7' and mold ejector plate 8', this structure is suitable for injection mold with return spring, demoulding rod 6' and When the mold ejector plate 8' does not need to be connected; when the injection mold has no return spring, it will be very difficult when the threaded connection between the ejector rod 6' an...

AI Technical Summary

Problems solved by technology

The structure of the current stripping rod connection mechanism is as follows: Figure 5 As shown, including demoulding piston rod 1', demoulding plate 3', demoulding rod 6', movable platen 7' and mold ejector plate 8', this structure is suitable for injection mold with return spring, demoulding rod 6' and When the mold ejector plate 8' does not need to be connected; when the injection mold has no return spring, it will be very difficult when the threaded connection between the ejector rod 6' and the mold ejector plate 8' is required, because one end of the ejector rod 6' It is connected with the mold ejector plate 8' through threads, and the other end is connected with the demoulding piston rod 1' through threads. The threads at both ends must be tightened at the same time with positive and negative threads, or remove the mold and connect the mold ejector plate 8' with the demoulding rod. 6' connection, a waste of labor and time in actual operation, and in use, because the stripping piston rod 1' is not positioned radially, there will be a loose threaded connection between the stripping rod 6' and the stripping piston rod 1', which is serious When the mold is damaged, the economic loss is very large

Images