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Unscrewing mold stripping mechanism

A demoulding mechanism and undercut technology, which is applied in the direction of household components, household appliances, and other household appliances, can solve the problems of increasing the production cost of product parts, increasing the overall size of the mold, and reducing the service life of the mold, etc.

Active Publication Date: 2017-01-11
KUNSHAN HONGYONGSHENG MOLD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The consequence of such a design is that it is often necessary to increase the overall size of the heightened mold, which not only reduces the service life of the mold, but also increases the production cost of the mold, and increases the production cost of product parts

Method used

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  • Unscrewing mold stripping mechanism
  • Unscrewing mold stripping mechanism
  • Unscrewing mold stripping mechanism

Examples

Experimental program
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Effect test

Embodiment

[0022] Embodiment: This embodiment provides a specific embodiment of an undercut demoulding mechanism, which can be used for demolding some products with relatively complex structures, such as the demoulding of automobile bumpers. Because when designing a car bumper, not only its mechanical properties during use must be considered, but also its aesthetic appearance. However, a car bumper is relatively large and has a relatively complicated structure, so it is difficult to demould, especially when When the undercut surface is released from the mold, it is easy to cause damage to the appearance.

[0023] Such as figure 1 As shown, the undercut demoulding mechanism provided in this embodiment includes an ejection part 1 and an auxiliary guide part 2 mated with the ejection part 1 . When the automobile bumper is demolded, the ejection part 1 and the auxiliary guide part 2 cooperate with each other to finally complete the demoulding of the product.

[0024] Specifically, the ejec...

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Abstract

The invention discloses an unscrewing mold stripping mechanism, comprising an ejection part, and an auxiliary guide part in cooperative connection with the ejection part, wherein the auxiliary guide part is arranged outside a mold and comprises a guide rail and a pull rod, and the ejection part comprises an ejection block; one end of the pull rod is in cooperative with the guide rail while the other end thereof is connected with the ejection block; a guide surface of the guide rail is an S-shaped structure and drives the pull rod to move upwardly along the guide rail when the ejection block is ejected, and the pull rod left and right moves in a perpendicular direction of the guide rail in order to rebound or eject the ejection block and complete mold stripping on an unscrewing surface of the product. The unscrewing mold stripping mechanism is mainly installed on the complex mold of the molded product; in mold stripping, the right and side of the product is ejected to contract inward and reset the molded product, and thus a product mold stripping difficulty is solved; the auxiliary guide part is installed outside the mold, so that the mold is simplified in structure, optimized in mold size, reduced in development cost and ensured in product quality when reliability of the mold structure is ensured.

Description

technical field [0001] The invention belongs to the field of mold design, and in particular relates to an undercut stripping mechanism. Background technique [0002] The car bumper is a safety device that absorbs and eases external impact and protects the front and rear of the car body. Plastic bumpers are commonly used at present, which are made by injection molding. Plastic bumpers have strength, rigidity and decoration. From the perspective of safety, they can play a buffer role in the event of a car collision and protect the front and rear bodies. It has a good decorative effect and becomes an important part of the appearance of the car. [0003] Generally, the structure of bumper products is relatively complicated. When demolding after injection molding, in order to make the product can be released smoothly, the mold used is usually equipped with multiple ejection and demoulding mechanisms inside. Therefore, a large area is required when designing the mold. The formw...

Claims

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Application Information

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IPC IPC(8): B29C45/33B29C45/44B29L31/30
CPCB29C45/33B29C45/332B29C45/4005B29C45/44B29C2045/445B29L2031/3044
Inventor 邹强
Owner KUNSHAN HONGYONGSHENG MOLD
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