Whole surface inverted hook release structure

A technology of barb and outer slider, applied in the field of mold structure, can solve the problems of easy-to-stick product 10, existing barb 11, product 10 cannot be ejected, etc., and achieves the effect of avoiding product deformation

Active Publication Date: 2019-07-02
SUZHOU MITAC PRECISION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are multiple protrusions on the inner side of the product 10, resulting in the phenomenon of undercuts 11 on the entire surface
The product 10 cannot be molded with oblique pins, only the inner slider is used for molding, which will cause the product 10 to be unable to be ejected, and the inner slider will easily stick to the product 10 when it is withdrawn, which will affect the appearance of the product 10

Method used

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  • Whole surface inverted hook release structure
  • Whole surface inverted hook release structure
  • Whole surface inverted hook release structure

Examples

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Effect test

Embodiment Construction

[0033] see Figure 3 to Figure 7 shown, where image 3 A three-dimensional schematic view of the entire surface barb exit structure of the present invention is shown, Figure 4 An exploded schematic view of the full-surface barb withdrawal structure of the present invention is shown, Figure 5 It shows the exploded schematic view of the oblique pin, the limiting insert and the insert pin in the full-surface barb withdrawal structure of the present invention, Image 6 A schematic diagram showing the full-surface undercut exit structure in the mold of the present invention, Figure 7 painted Image 6 A partially enlarged schematic diagram.

[0034] In this embodiment, the full-surface undercut withdrawal structure of the present invention is applied to a mold, and the mold includes a female template 20, a female mold core 21, a male mold core 22, a male template 23, an upper ejector plate 24, a lower ejector Exit plate 25 and thimble (not shown), the entire surface barb exi...

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PUM

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Abstract

The invention provides a whole surface inverted hook release structure comprising an outer sliding block insert core arranged on the outer side of a product so as to mold the appearance of the product, an outer sliding block body connected with the outer sliding block insert core, a first oblique guide column arranged in the outer sliding block body for pushing the outer sliding block body to move, an inner sliding block insert core arranged on the inner side of the product so as to mold inverted hooks on the inner side of the product, a second oblique guide column arranged in the inner sliding block insert core for pushing the inner sliding block insert core to move, oblique pins of which the tail ends are arranged in a male template and connected with ejector pins of a mould, limiting insert cores and insert pins; the product is formed on one side of the head end of each oblique pin; one end of each limiting insert core is arranged in a male mould core, and the other end of each limiting insert core is arranged in the inner sliding block insert core, and provided with a vertical side face; and one end of each insert pin abuts against the vertical side face of the corresponding limiting insert core. According to the whole surface inverted hook release structure, through arrangement of the oblique pines and the insert pins, the whole surface inverted hooks of the product can bereleased; and not only can the product be ensured to be pushed out through the oblique pins, but also the product is not bonded when the inner sliding block insert core and the oblique pins are released.

Description

[0001] 【Technical field】 [0002] The invention relates to a mold structure, in particular to an entire surface barb exit structure. [0003] 【Background technique】 [0004] When producing plastic products, if there are a large number of limiting bosses (RIB) inside the product, it will cause the entire inner surface of the product to be undercut, and the entire surface of the undercut is not easy to withdraw. [0005] see figure 1 and figure 2 shown, where figure 1 shows a schematic diagram of a product, figure 2 painted figure 1 A partially enlarged schematic diagram. The product 10 has a plurality of protrusions on the inner side, resulting in undercuts 11 on the entire surface. The product 10 cannot be molded with oblique pins, and only the inner slider is used for molding, which will cause the product 10 to be unable to be ejected, and the inner slider will easily stick to the product 10 when it is withdrawn, which will affect the appearance of the product 10 . ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C45/33B29C45/40B29C33/44
CPCB29C45/332B29C45/4005B29C33/44
Inventor 邓联坤
Owner SUZHOU MITAC PRECISION TECH
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