In-mold cut structure

CN122401799APending Publication Date: 2026-07-17NINGBO SOUTH MOLD & PLASTIC
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
NINGBO SOUTH MOLD & PLASTIC
Filing Date
2026-05-22
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

In existing technologies, waste material from the flow channels of car bumpers needs to be manually removed, resulting in low production efficiency, high labor costs, and the cut surface affecting the product's aesthetics.

Method used

Design an in-mold cutting structure that uses a drive component to drive the gate slider to slide, so that the cutter automatically separates the runner waste from the product inside the mold. The cut surface is located at the bottom of the product. The combination of bevel and acute angle design ensures that the cut is flat and burr-free. The waste is automatically removed through an automatic ejection component.

Benefits of technology

It enables automatic removal of waste material from the flow channel, improving production efficiency, reducing labor costs, ensuring product appearance quality, reducing cutting marks, and enhancing the level of production automation.

✦ Generated by Eureka AI based on patent content.

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    Figure CN122401799A_ABST
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Abstract

The application provides a structure for cutting in a mold, relates to the technical field of molds, and aims to solve the technical problem of low production efficiency, high labor cost and product cutting surface marks affecting the appearance in the prior art due to manual cutting of runner waste; the structure for cutting in a mold comprises an upper mold and a lower mold, a cavity for forming a product is formed between the upper mold and the lower mold; a runner slider is connected to the lower mold in a horizontal sliding manner, a runner is arranged on the runner slider below the cavity, and the inner end of the runner is in communication with the lower end of the cavity; a driving member is arranged on the lower mold and drives the horizontal sliding of the runner slider; a cutter is arranged on the runner slider, the cutter is provided with a blade part, the blade part is arranged on the inner side of the inner end of the runner and forms at least part of the inner wall of the inner end of the runner, and after the mold is opened, the horizontal sliding of the runner slider is driven by the driving member, so that the blade part of the cutter cuts the product and the runner waste apart from the inner side of the inner end of the runner, thereby avoiding the complicated operation and labor cost caused by manual cutting and ensuring the overall appearance of the product.
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