Demolding mechanism for internally-threaded piece with reverse buckles

Abstract

The invention discloses a demoulding mechanism for an inner screw with an undercut, comprising a spring plate, a top plate, a main shaft, a threaded shaft, an inner rod and a mounting plate; the mounting plate, the spring plate and the top plate are from top to bottom. They are arranged in front of each other and there is a gap between them. The bottom four corners of the elastic plate are provided with top extension springs; the main shaft passes through the top plate and the elastic plate from the bottom to the top of the mounting plate and is connected with a driving gear; the threaded shaft There are two symmetrically arranged on both sides of the driving gear. The top of the threaded shaft is installed with a driven gear that meshes with the driving gear. The inner rod vertically passes through the threaded shaft and extends downward. The inner rod includes a core rod and a sleeve. On the sleeve rod around the core rod, a slope block is installed on the core rod, and a slider on the sleeve rod is clamped with the slope block. The invention effectively protects the inner thread and the undercut of the product through the step-by-step demolding design, and at the same time has a simple structure and is worthy of popularization and use.

Description

Technical field [0001] The invention relates to a demolding structure, in particular to a demolding mechanism for internal threaded parts with undercuts. Background technique [0002] Molds are various molds and tools used in industrial production to obtain the required products by injection molding, blow molding, extrusion, die-casting or forging molding, smelting, stamping and other methods. In short, a mold is a tool used to make molded objects. This tool is composed of various parts, and different molds are composed of different parts. It mainly realizes the processing of the shape of the article by changing the physical state of the formed material. Known as the "Mother of Industry". [0003] The mold has a specific contour or inner cavity shape, and the contour shape with a cutting edge can be used to separate the blank according to the contour shape (punching). The application of the cavity shape can make the blank obtain the corresponding three-dimensional shape. The mo...

AI Technical Summary

Problems solved by technology

[0004] In the field of molds, it has always been a technical problem to demould internally threaded parts with undercuts. Most of the existing demoulding mechanisms for this product have complex structures and are easy to damage the threads and undercuts of the product during the demoulding process.

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