Improved Structure of Plunger Injection Mechanism

Abstract

An improved structure of a plunger-type injection mechanism, comprising: a body with a body, a first sliding hole extending straight inward from one end of the body, and a discharge channel extending inward from the other end of the body and on the second A sliding hole is located at the end of the extension to form a first opening on the wall of the hole to communicate with the discharge channel and the first sliding hole. A feeding channel is arranged on the body and formed on the wall of the first sliding hole at the end of the extension. A second opening spaced apart from the first opening; a sliding part having a plunger coaxially slid in the first sliding hole so that one end faces the hole at the extension end of the first sliding hole The wall and the surrounding cylindrical surface are attached to the hole wall of the first sliding hole, and can move linearly reciprocally relative to the body along the direction of its own column axis, and can move between the measurement position and the zero return position. The material blocking part has a second sliding hole which is arranged on the plunger, and a material blocking element is slid in the second sliding hole, and reciprocally displaces between the blocking position and the opening position.

Description

Technical field [0001] The present invention is related to the injection molding technique, particularly a modified structure of a plunger injection mechanism. Background technique [0002] As the previous technique of China No. 1,37987, the preceding technique of emitting molding is provided, and the solid polymer raw material mixture is melted into a flowable state, and after metering, the metered raw material is taken to the mold by plunger. Molding, is the usual technique such as the technical content of the technical content to be emitted into the field of forming processing technology, but the technique of being injected with the plunger is required to provide a plunger-raised mechanism and a mold. The connection channel, thereby accumulating unused raw materials in the channel inside the connected elbow, and the raw materials accumulated can vary from temperature to temperature, increase the work burden of the staff necessary to clear the changes. Relative also affects the...

AI Technical Summary

Problems solved by technology

[0002] As disclosed in the previous technology of injection molding provided by Chinese Patent No. I637987, the solid polymer raw material mixture is melted by heat energy into a flowable state, and after metering, the metered raw material is injected into the mold by a plunger for further processing. Molding is a common technology in the technical field of injection molding, but due to the above-mentioned technical content of injection with a plunger, it is necessary to provide a gap between the plunger injection mechanism and the mold through an elbow adjacent to the mold. The connecting channel of the connected elbow accumulates unused raw materials in the channel inside the connected elbow, and the accumulated raw materials are easy to change due to temperature, which increases the workload of the staff to remove the changed raw materials. Relatively also affects the quality and efficiency of processing

Images