Mold structure for realizing thick-walled products without draft angles

A release angle and mold technology, which is applied to household appliances, other household appliances, applications, etc., can solve the problem that the product cannot be ejected, and achieve the effect of uniform wall thickness

Active Publication Date: 2020-12-15
HASCO VISION TECHNOLOGY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the product has no demoulding angle, the product cannot be ejected

Method used

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  • Mold structure for realizing thick-walled products without draft angles

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Embodiment Construction

[0024] Various embodiments of the invention will be described with reference to the accompanying drawings. In the description and drawings, elements with similar structures or functions will be denoted by the same symbol. It can be understood that the drawings are only used for reference and description, and are not intended to limit the present invention. The dimensions shown in the drawings are only for the convenience of clear description, and do not limit the proportional relationship or give an exhaustive description of the present invention, nor limit the scope of the present invention.

[0025] In describing the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", The orientation or positional relationship indicated by "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the pres...

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Abstract

The invention relates to a mold structure for achieving a thick-walled product without a demolding angle, and belongs to the field of automobile lamp manufacturing. The mold structure is used for injection molding of a rear lamp mirror assembly comprising a mirror and a light guide, wherein the light guide is connected with the mirror at an certain angle, and a barb is arranged at one side of thelight guide; the mold structure comprises a movable mold insert and a fixed mold insert; split surfaces of the movable mold insert and the fixed mold insert are matched parting surfaces; a light guiding cavity is arranged in the movable mold insert; a mirror cavity is arranged in a fixed mold cavity; the light guide formed in the light guiding cavity is at a first angle with the moving direction of a movable mold; one surface of a mirror formed in the mirror cavity is superposed with the split surface of the fixed mold insert; and a fixed mold ejector rob which is at a second angle with the moving direction of the movable mold is arranged in the fixed mold insert. By adopting the mold structure provided by the invention, not only is the uniform wall thickness of the light guide ensured, but also a product is enabled to be ejected normally by tilting the product in a mold.

Description

technical field [0001] The invention relates to the field of automobile lamp manufacturing, in particular to a mold structure for realizing thick-walled products without a demoulding angle. Background technique [0002] The rear light reflector assembly is generally made of PC (Chinese name: polycarbonate) or PMMA (Chinese name: polymethyl methacrylate) material by injection molding. The rear light reflector assembly is not only a structural part but also an appearance part. The rear light reflector assembly is composed of a reflector and a light guide. Because the depth of the light guide strip on the reflector assembly is relatively large, if the mold release angle is increased, one end of the entire light guide strip must be very thick. Such products are not only prone to shrinkage, but also have an ugly appearance, which cannot meet the requirements of OEMs. Therefore, when designing the product, the light guiding strip is designed to have a uniform wall thickness, wit...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C45/26B29C45/44B29C45/16B29L11/00
CPCB29C45/1615B29C45/2602B29C45/4005B29C45/44B29C2045/445B29L2011/0016
Inventor 赵彩霞朱叶琪许斌
Owner HASCO VISION TECHNOLOGY CO LTD
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