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Mold

A mold and runner technology, applied in the field of molds for in-mold transfer printing, can solve the problems affecting the quality of in-mold decorative moldings, and achieve the effects of good appearance quality and reduced injection speed.

Inactive Publication Date: 2010-06-09
KANGZHUN ELECTRONICS TECH KUNSHAN +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, during in-mold injection molding, the high-speed injected melt will dilute the ink on the foil film with the transfer layer facing the gate, and even blow the foil film, thus affecting the in-mold decoration molded product quality

Method used

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Embodiment Construction

[0013] Please refer to figure 1 and figure 2 , The first embodiment of the mold of the present invention includes a female mold 10 and a male mold 20 .

[0014] A mold cavity 12 is defined in the master mold 10 .

[0015] The male mold 20 protrudes from the side facing the female mold 10 with a mating portion 22 matching the mold cavity 12 of the female mold 10 , and a mold cavity corresponding to the molded workpiece is formed between the mold cavity 12 and the mating portion 22 . The male mold 20 includes a plurality of phase blocks, such as a first phase block 21 , a second phase block 23 and a third phase block 25 . The second and third phase blocks 23, 25 are installed laterally on two opposite ends of the first phase block 21, so as to jointly form a feeding passage through the matching portion 22, and the feeding passage includes a horizontally arranged Injection gate 294.

[0016] Please refer to figure 2 and image 3 , the feed channel includes a feed port 26 ...

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PUM

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Abstract

The invention provides a mold. The mold is provided with a pouring channel, a feeding hole and a flow passage communicated with the feeding hole, wherein the pouring channel is communicated with the flow passage; the flow passage comprises a pouring gate; and the pouring channel is provided with a buffer zone at a position close to the pouring gate. High-speed melt adhesive injection toward a foil film is avoided and the melt adhesive stays in the buffer zone, so that the injection speed of the melt adhesive is lowered in a gel ejecting process. Thus, an in-mold decoration molded work-piece with excellent appearance quality is obtained.

Description

technical field [0001] The invention relates to a mold for in-mold transfer printing. Background technique [0002] The injection mold includes a male mold and a female mold, and the male mold is usually provided with a gate communicating with the cavity. In order to obtain decorative molded products with better appearance, injection molds are generally formed by high-speed injection molding. However, during in-mold injection molding, the high-speed injected melt will dilute the ink on the foil film with the transfer layer facing the gate, and even blow the foil film, thus affecting the in-mold decoration molded product quality. Contents of the invention [0003] In view of the above, it is necessary to provide a mold that can improve the quality of the in-mold decoration molding workpiece. [0004] A mold, the mold is provided with a sprue, a feed port and a runner communicated with the feed port, the sprue communicates with the runner, the sprue includes a sprue, the ...

Claims

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Application Information

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IPC IPC(8): B29C45/27
Inventor 李鸿雷贾正红党萍萍焦俊辉
Owner KANGZHUN ELECTRONICS TECH KUNSHAN