In-mold hot cutting device for injection molding machine

By using the split structure and automatic separation technology of the in-mold hot cutting device, the problem of separating injection molded parts from the runner is solved, thereby improving production efficiency and product quality and reducing scrap rate.

CN224588520UActive Publication Date: 2026-08-04WEIFANG XINRONG ELECTRIC CO LTD
0 Cites 0 Cited by

Patent Information

Application Number
CN202521918473.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-08
Publication Date
2026-08-04
Estimated Expiration
2035-09-08

AI Technical Summary

Technical Problem

In injection molding production, it is difficult to automatically separate the injection molded parts from the runner, resulting in low production efficiency, high labor intensity, and affected product appearance quality. Especially with the side gate injection method, residue and insufficient glue are prone to occur during secondary processing, resulting in a high product scrap rate.

Method used

An in-mold hot-cutting device is adopted. By setting a separate structure for the injection mounting plate and the injection template, the injection gate is automatically cut off using hot-cutting levers and return springs. The injection parts are automatically separated from the runner through the central parting rod and the parting push rod.

Benefits of technology

It enables automatic separation of injection molded parts from the runner, improving production efficiency, reducing labor intensity, reducing product defects, improving appearance quality, and reducing scrap rate.

✦ Generated by Eureka AI based on patent content.
Patent Text Reader

Abstract

This utility model provides an in-mold hot-cutting device for injection molding machines, including a fixed mounting plate and an injection mounting plate. The fixed mounting plate is connected to a mold parting assembly and has a push groove. The mold parting assembly is connected to a mold component, which includes a mold assembly and an injection assembly. The injection assembly includes an injection mounting plate, which is rotatably connected to an injection mold plate. A hot-cutting lever is inserted into the side of the injection mounting plate. By causing the injection mounting plate and the injection mold plate to rotate relative to each other, the injection gate is cut off, realizing in-mold hot-cutting technology. This separates the injection-molded model from the injection runner. The central mold parting rod can push out the injection runner, and the mold parting push rod can push out the injection-molded product. This reduces the steps required to separate the runner after injection molding, simplifies the workflow, improves injection efficiency, does not affect the product appearance quality, and significantly reduces the product scrap rate.
Need to check novelty before this filing date? Find Prior Art