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Burning-prevention mold runner mechanism

An anti-scorch and flow channel technology, applied in the field of anti-scorch mold flow channel mechanism, can solve the problems of injection pressure loss, high product filling pressure, scorching, etc., and achieve simple structure, small injection pressure loss and improved surface quality Effect

Inactive Publication Date: 2014-04-23
中山市利群精密实业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This will often lead to problems such as difficulty in ejection of the runner thimble, high filling pressure of the product, and failure of the product surface to meet the requirements.
Because the sharp corners at the intersection of runners and runners will generate a lot of resistance during filling, causing serious injection pressure loss; when there are multiple runners, the route for the rubber to reach the product cavity is longer, which often causes burnt Phenomenon

Method used

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  • Burning-prevention mold runner mechanism

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Embodiment Construction

[0013] The present invention will be further described below in conjunction with accompanying drawing description and specific embodiment:

[0014] Such as figure 1 The anti-scorch mold runner mechanism shown includes a runner 1, a transition fillet 2 is provided on the inner wall where the two runners 1 intersect, and an anti-scorch mechanism 3 is provided on the runner 1 .

[0015] The anti-scorch mechanism 3 in the present invention includes an exhaust groove 4 arranged at the end of the flow channel 1 .

[0016] In the present invention, a blocking member is provided in the exhaust groove 4 .

[0017] In the present invention, the angle of the transition fillet 2 is 30-60°.

[0018] The invention has a simple structure, and a transition fillet is provided on the inner wall of the junction of the runners, which effectively ensures the smooth flow of the rubber material during filling and minimizes the loss of injection molding pressure; an exhaust groove is provided at t...

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PUM

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Abstract

The invention discloses a burning-prevention mold runner mechanism. The burning-prevention mold runner mechanism comprises runners. The burning-prevention mold runner mechanism is characterized in that the inner walls of the two runners at the crossed part are provided with knuckles; the runners are provided with burning-prevention mechanisms. Aiming to overcome the defects in the prior art, the invention provide the burning-prevention mold runner mechanism which is simple in structure, is convenient to manufacture, and can be used for effectively preventing the injection molding burning phenomenon.

Description

technical field [0001] The invention relates to an anti-scorch mold runner mechanism. Background technique [0002] The existing mold runners are generally not processed after processing. This will often lead to problems such as difficulty in ejection of the ejector pin of the runner, high filling pressure of the product, and failure of the product surface to meet the requirements. Because the sharp corners at the intersection of runners and runners will generate a lot of resistance during filling, causing serious pressure loss in injection molding; when there are multiple runners, the route for the rubber to reach the product cavity is longer, and scorch often occurs Phenomenon. [0003] Therefore, the existing runner structure needs to be further improved. Contents of the invention [0004] The object of the present invention is to overcome the deficiencies in the prior art, and provide an anti-scorch mold runner mechanism with simple structure, convenient processing,...

Claims

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Application Information

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IPC IPC(8): B29C45/27B29C45/34
CPCB29C45/2725B29C45/34
Inventor 董功占
Owner 中山市利群精密实业有限公司