Core-pulling self-locking mechanism

Abstract

The invention discloses a core-pulling self-locking mechanism. The core-pulling self-locking mechanism is characterized by comprising a core, a core puller and a core drive mechanism. A T-grooved top face of the core is a plane. The core puller comprises a puller wedged head and a puller straight section. The bottom face of the puller straight section is a plane. During closing, the core drive device pushes the core puller to move forward, the core is urged to correspondingly move by the core puller until the puller straight section starts abutting to the T-grooved top face of the core, the bottom face of the puller straight section starts contacting with the T-grooved top face of the core to form locking faces, the core just reaches a set travel and stops moving, the core drive device continues to push the core puller to move forward, and the locking faces increase with the moving until the core puller reaches the set position. The opening process is right reverse to the closing process. By the use of the core-pulling self-locking mechanism, the existing complex injection mould core-pulling mechanism is simple and reliable, and processing difficulty and production cost of injection moulds can be lowered greatly.

Description

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AI Technical Summary

Benefits of technology

This technology makes it easier for an injector machine to produce plastic parts with complex cores that are difficult or expensive to manufacture due to its complexity. It also reduces process difficulties by making sure there's no unnecessary steps needed during assembly.

Problems solved by technology

This patented technical problem addressed in this patents relates to improving the way that injected plastisol (plasma) can escape from certain parts during production without causing damage or malfunctions when trying to remove them manually.

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