An injection mold structure for high-gloss, seamless automotive plastic parts

CN110406056B8Active Publication Date: 2021-09-03QINGDAO DAESUNG ELECTRONIC CO LTD
0 Cites 0 Cited by

Patent Information

Application Number
CN201910885197.4
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Priority Date
2018-12-30
Filing Date
2019-09-19
Publication Date
2021-09-03
Estimated Expiration
2039-09-19

AI Technical Summary

Technical Problem

In black high-gloss injection molding technology, flow marks are prone to appear on the surface of parts injected directly using raw materials, which increases the technical difficulty and makes it difficult to achieve a high-gloss, traceless effect.

Method used

An injection mold structure for high-gloss, traceless automotive plastic parts is designed. It adopts a linkage design between the opening and closing of the upper mold and the box. The support block and connecting rod are driven by the ejector rod, which drives the baffle to move upward and separates the bellows and the baffle. Plate, using high-temperature steam cooling and heating to eliminate weld marks on the injection mold.

Benefits of technology

It effectively eliminates weld marks on injection molded products, achieves a high-gloss, traceless effect, and improves the surface quality and aesthetics of parts.

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

Abstract

This invention discloses an injection mold structure for high-gloss, seamless automotive plastic parts, including a base plate. Two vertically arranged supports are symmetrically fixedly connected to the upper end of the base plate, and a housing is fixedly connected to the top of the two supports. A cavity is formed inside the housing. This invention employs a linkage design between the upper mold and the housing. When the upper mold moves downwards, a support block fixedly connected to it moves via a push rod. The movement of the support block then drives a connecting rod to move according to a lever. The connecting rod, according to the lever, drives a baffle rotatably connected to it to move upwards. At this time, the bellows separates from the baffle, and the air inlet pipe connects to the steam output of an external boiler. Steam then enters the cavity, bellows, upper mold, and lower mold to complete a cycle and exits through the exhaust pipe. Due to the cooling and heating effects of the high-temperature steam, weld lines on the injection mold can be eliminated, thus achieving a high-gloss, seamless finish on the injection molded product.
Need to check novelty before this filing date? Find Prior Art