Automatic mold release control mechanism for injection mold

Abstract

The invention provides an automatic mold release control mechanism for an injection mold, and belongs to the technical field of injection molding machinery. The automatic mold release control mechanism for the injection mold solves the problem that time control over ejecting mechanisms of existing injection molds is unreasonable and comprises a fixed mold and a movable mold, an upper cavity is formed in a movable mold lower end face, a lower cavity is formed in a fixed mold upper end face, and the movable mold lower end face is further provided with a locating rod in an inclined mode; the automatic mold release control mechanism further comprises a locating block, the locating block is provided with a locating hole matched with the locating rod and is arranged on the fixed mold upper end face in a sliding mode through matching between a slide block and a slide groove, the fixed mold upper end face is further provided with a groove, a movable magnetic block and a fixed magnetic block are arranged in the groove and repel each other, the fixed magnetic block is fixed in the groove, an arc-shaped protrusion is arranged on the upper end face of the movable magnetic block, and a sunken part matched with the protrusion is formed in the lower end face of the locating block; the automatic mold release control mechanism further comprises an ejecting mechanism, and a first switch used for controlling turning on and turning off of the ejecting mechanism is arranged on a movable mold upper end face. The automatic mold release control mechanism can well control the ejecting time of the ejecting mechanism.

Description

technical field [0001] The invention belongs to the technical field of injection molding machinery, and relates to an automatic ejection control mechanism of an injection mold. Background technique [0002] Injection molding is a processing method used in the mass production of some parts with complex shapes. Specifically, it refers to injecting heated and melted materials into the mold cavity under high pressure, and after cooling and solidifying, molded products are obtained. Injection mold is a tool for producing plastic products, and it is also a tool for giving plastic products a complete structure and precise dimensions. Injection molds are divided into thermosetting plastic molds and thermoplastic plastic molds according to their molding characteristics. Plastic mold, casting mold, thermoforming mold, hot pressing mold, injection mold, etc. The hot pressing mold can be divided into three types: overflow type, semi overflow type and non overflow type according to the o...

AI Technical Summary

Problems solved by technology

The time control of the push-out mechanism in the existing injection mold is unreasonable. If it is too early, it will collide with the movable mold and cause an accident. If it is too late, the plastic product will not be easy to be pushed out, which will make the demoulding time of the plastic product long and cause low production efficiency.

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