A screw cap injection mold

Abstract

The invention discloses a nut injection mold. The nut injection mold comprises a bottom plate, a lower mold plate, a cavity, an injection liquid inlet, a positioning hole, a positioning column, an upper mold plate, a mold cavity, a cooling water channel, a top plate, a water outlet, a button, a stand column, a limiting plate, an electric pushing rod, a water inlet, a threaded rod, a connecting rod, an injection liquid channel, an electric heating wire, a motor, a rack band, a gear and a baffle. The nut injection mold has the beneficial effects that the two mold plates can be opened during automatic mold assembly and demolding, steadiness and rapidness are achieved, the phenomena that nuts are deformed and cracked due to collision during demolding are eliminated, the injection speed is increased, and the injection quality is improved; and meanwhile, injection molding is conducted by spraying injection liquid at the top of the threaded rod, on the one hand, the flowing distance of the injection liquid is reduced, through cooperation with the electric heating wire, solidification of the injection liquid at the channel is prevented, holes formed during injection are reduced, demolding is conducted through ascending and descending of the threaded rod driven by the gear in an electric mode, automatic demolding is achieved, and demolding is clean and stable.

Description

technical field [0001] The invention relates to an injection mold, in particular to a screw cap injection mold, which belongs to the technical field of mold application. Background technique [0002] A nut is a part that is screwed together with a bolt or a screw for fastening. It is an element that must be used in all manufacturing machinery. According to different materials, the inside of the nut adopts a threaded structure, and through the rotation between the bolt and the screw The upper and lower position changes to control the tightness of the connection. Although the nut has a simple structure, it is an indispensable and important part in many industries. [0003] Nuts are mostly formed by injection molding during production. Most of the existing nut injection molds are injected from the upper template to the inside of the lower template. In this injection molding method, the injection liquid flows through a long distance, and it is easy to cause the injection liquid ...

AI Technical Summary

Problems solved by technology

[0003] Nuts are mostly formed by injection molding during production. Most of the existing nut injection molds are injected from the upper template to the inside of the lower template. The injection molding liquid in this injection molding method has a long path, and it is easy to cause the injection molding liquid to solidify inside the channel. The channel is blocked, and at the same time, manual mold opening and closing will cause cracks on the surface of the nut when there is a slight shake, resulting in low production speed and low injection quality.

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