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Entry structure

A technology of sub-entry structure and sub-entry, which is applied in the field of sub-structures that cooperate with thimble injection of the flow channel, can solve the problems of broken soft glue entering the glue point, stuck with the ejector pin, burrs in the flow channel, etc., so as to solve the problem of the ejector pin stuck dead effect

Inactive Publication Date: 2016-09-07
MITAC PRECISION TECH(KUNSHAN) CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Therefore, the purpose of the present invention is to provide a new type of inlet structure, which can solve the above-mentioned problem of jamming and breaking of the thimble caused by the loose fit and the burrs near the soft glue inlet point and the flow channel. question

Method used

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Embodiment Construction

[0019] see Figure 2 to Figure 5 As shown, the inlet structure of the present invention is applied in the mold to cooperate with the runner 400 and the runner thimble 300 to inject glue. In this embodiment, the inlet structure includes:

[0020] The first inlet 100, the first inlet 100 is provided with a first horn runner groove 110, and the first inlet 100 is also provided with a vertical groove 120;

[0021] The second inlet 200, the second inlet 200 is provided with a second horn runner groove 210, and the second horn runner groove 210 is matched with the first horn runner groove 110 to form a horn runner. The second insert 200 is also provided with a protruding block 220, the protruding block 220 needs to ensure a certain strength, and the protruding block 220 is provided with a through hole 221, and one end of the runner thimble 300 in the mold is located in the through hole. The hole 221 is used for the top flow channel 400, the protrusion 220 is matched with the above-...

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Abstract

The invention relates to an insert core structure which is applied to a mold. The insert core structure comprises a first insert core and a second insert core, wherein the first insert core is provided with a first oxhorn runner groove and a vertical groove, the second insert core is provided with a second oxhorn runner groove, the second oxhorn runner groove is matched with the first oxhorn runner groove to form an oxhorn runner, the second insert core is also provided with a bump, the bump is provided with a through hole and is matched with the vertical groove, and the surface, in contact with a mold core, of the second insert core is a slope. With the insert core structure, the problems such as seizure and breaking of an ejector pin and burrs nearby a flexible glue feeding point and on the runner caused by the defective tightness of matching can be solved.

Description

【Technical field】 [0001] The invention relates to a mold structure, in particular to a sub-structure for cooperating with a flow channel thimble to inject glue. 【Background technique】 [0002] The conventional method of feeding hard rubber horns is as follows: two symmetrical horn inserts cooperate as horn runners, and then cooperate with runner thimbles to feed glue. [0003] If the above glue feeding method is also used when forming soft rubber, the fitter should refer to figure 1 As shown, the thimble 20 is set in the middle of the two horn inserts 10, and the two horn inserts 10 and the thimble 20 need to be closely matched, otherwise, there will be a gap between the thimble 20 and the horn insert 10, resulting in broken pieces. After the thimble 20 is ejected from the runner 30, the scrap will fall into the matching gap between the thimble 20 and the horn insert 10. Because the soft glue is very viscous, the falling soft glue can easily cause the thimble 20 to be stuc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C45/26
CPCB29C45/2602
Inventor 刘冬飞
Owner MITAC PRECISION TECH(KUNSHAN) CORP