Quick switching core structure of multi-cavity plastic mold

CN224689467UActive Publication Date: 2026-08-28KUNSHAN SHISHUO PRECISION MOULD CO LTD
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Patent Information

Application Number
CN202521521412.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-07-21
Publication Date
2026-08-28
Estimated Expiration
2035-07-21

AI Technical Summary

Technical Problem

[0005]现有技术中类似于上述的模具,其在更换模芯时需要借助工具取下定位销,先将上模架取下来,然后将内部模芯取下来进行更换,虽然实现了模芯的更换,但是操作比较麻烦,更换效率较低,因此具有待改进的空间

Benefits of technology

[0018]本实用新型通过设置有安装机构,当需要对下模仁和上模仁进行更换时,正常状态下,限位块的一端位于限位槽的内部,对安装块进行固定,同时安装块对安装弹簧一进行压缩,从而可对下模仁和上模仁进行固定,当要更换时,旋转转轴,转轴带动挤压块旋转,挤压块的旋转对挤压板进行挤压,挤压板受到挤压后就会朝着安装槽的内部移动,并同时对安装槽进行挤压,此时限位块也会随着移动,限位块进而离开限位槽的内部,此时安装块就会失去限位的力,此时安装弹簧一也会释放出弹力,进而可通过安装弹簧一带动安装块在活动槽的内部移动,随后安装块即可将挡板顶开,从而达到了可自动将下模仁和上模仁从下模具和上模具的内部弹出的效果,提高了更换模仁的速度。

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Abstract

This utility model relates to a quick-change mold core structure, belonging to the field of plastic mold technology. Specifically, it is a quick-change mold core structure for a multi-cavity plastic mold, including a base, a lower mold, and an upper mold. The lower mold is fixedly mounted on the base, and the upper mold is mounted on the lower mold. A lower mold core is movably mounted on the lower mold, and an upper mold core is movably mounted on the upper mold. Both the lower and upper molds have movable grooves inside, and mounting blocks are movably mounted inside the movable grooves. The mounting blocks are fixedly connected to the lower and upper mold cores. A mounting spring is provided inside the movable groove, and a mounting mechanism is provided inside the movable groove. The mounting mechanism includes a limiting groove and a mounting groove. The limiting groove is opened on the mounting block, and the mounting groove is opened inside the lower and upper molds at positions corresponding to the limiting groove. This utility model achieves the effect of automatically ejecting the lower and upper mold cores from inside the lower and upper molds, improving the speed of mold core replacement.
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Citation Information

Patent Citations

  • Die with quickly-replaceable die core

    CN209320172U