A guide positioning mechanism for a plastic mold

Through the collaborative design of multiple guiding and positioning structures, the problems of insufficient precision and difficult demolding in traditional plastic molds are solved, achieving efficient and reliable guiding, positioning and demolding, which is suitable for the manufacturing of plastic molds with high precision and complex structures.

CN224510334UActive Publication Date: 2026-07-17KUNSHAN BELT PRECISION MOULD CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
KUNSHAN BELT PRECISION MOULD CO LTD
Filing Date
2025-05-27
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Traditional plastic mold guiding and positioning mechanisms suffer from insufficient precision, difficulty in demolding, and complex maintenance, making them unsuitable for the needs of large-scale automated production.

Method used

The design employs a multi-directional, positioning, and demolding structure, including inclined guide pillars, rigid wedge blocks, automatic spring reset, mechanical limit rods, and symmetrically distributed ejector pin assemblies, to ensure precise slider movement trajectory, accurate reset, and reliable demolding.

Benefits of technology

It improves the molding accuracy and production efficiency of molds, reduces the scrap rate, extends the service life of molds, and simplifies the maintenance process.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of plastic mould, and disclose a kind of guiding and positioning mechanism of plastic mould, the slider is provided in the top of movable mould, the slider is symmetrically provided with two groups of ejector pin assemblies for preventing product sticking to lateral mould on its front and back sides, two groups of positioning devices are symmetrically arranged on movable mould to ensure the accurate reset of slider when mould is opened;The bottom of fixed mould is provided with wedge block matched with slider, inclined guide pillar is provided on wedge block to provide power for the sliding of slider and cooperates with guide groove to guide sliding insertion;When movable mould is relative to fixed mould opening, slider is away from wedge block, and the limiting ball in threaded column A is inserted into the positioning hole in the bottom of slider under the abutting action of spring A, to realize the accurate reset of slider. Through inclined guide pillar guiding, multiple reset and limiting structure cooperation, realize the high-precision motion control and accurate reset of slider;Ejector pin assembly combines mechanical limiting active demoulding, and adapts to automatic production.
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