A cosmetic pen body injection mold

Abstract

The invention relates to an injection mold for a cosmetic pencil body, which includes a fixed template fixedly arranged on an injection molding machine and a movable template slidably connected with the fixed template, a nozzle is arranged on the fixed template, and the movable template includes a discharge plate and a forming plate , the forming plate is provided with a forming cavity communicating with the nozzle, the fixed plate is provided with an upper forming column that can extend into the forming cavity, and the discharge plate is provided with a forming cavity that can extend into the forming cavity and abut against the upper forming column The lower forming column, the outer surface of the lower forming column is provided with several convex ribs in a circumferential array, and the discharge plate is slid on the forming plate along the sliding direction of the movable template. When the movable template slides to the upper forming column and completely moves out of the forming cavity, the forming plate is fixed, and the discharge plate continues to slide. At this time, the lower forming column can pull out the pen body in the forming cavity. When the injection molded pen body and the lower After the forming column slides out of the forming cavity, the pen body can be removed from the lower forming column, which is very convenient for demoulding.

Description

technical field [0001] The invention relates to the technical field of injection molds, in particular to an injection mold for a cosmetic pencil body. Background technique [0002] At present, plastic molding molds generally include a static mold and a moving mold. A flow channel for liquid plastics to flow through and a cavity connected with the flow channel are opened in the static mold. A core is provided on the moving mold, and the moving mold and the static mold When abutting, an injection cavity is formed between the core and the cavity; the liquid plastic is injected into the flow channel through the injection molding machine, and then transported to the injection cavity through the flow channel, and then the injection cavity is cooled to make the plastic solidify into the desired product shape, and then drive the static mold and the movable mold to separate, and finally the molded product is ejected from the injection cavity through the ejector pin to complete the pr...

AI Technical Summary

Problems solved by technology

[0004] There is following defect in the prior art scheme in above-mentioned: when injection molding such as figure 1 The body of the cosmetic pen shown in , generally adopts a cylindrical fixed mold core and a columnar movable mold core. When the mold is closed, the movable mold core is inserted into the fixed mold core, and the raw materials enter the fixed mold core to complete the inner wall of the pen body. For molding with the outer wall, after the injection molding is completed, the movable mold core is pulled out from the fixed mold core. At this time, it is necessary to manually take out the cosmetic pen body from the fixed mold core. It is very laborious to take out the mold core, the demoulding process is very troublesome, and the work efficiency is low

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