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Side core-pulling mechanism and injection mould

A side core-pulling and guiding mechanism technology, which is applied in the field of side core-pulling mechanisms and injection molds, can solve problems such as product deformation, achieve the effects of preventing deformation of plastic parts, improving pass rate, and ensuring molding quality

Inactive Publication Date: 2015-04-01
SHENZHEN SKYWORTH PRECISION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The main purpose of the present invention is to provide a side core-pulling mechanism, aiming to solve the technical problem of product deformation caused by lateral core-pulling of existing injection molds

Method used

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  • Side core-pulling mechanism and injection mould
  • Side core-pulling mechanism and injection mould
  • Side core-pulling mechanism and injection mould

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Embodiment Construction

[0021] It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0022] The invention provides a side core pulling mechanism, see Figure 1 to Figure 5 , in one embodiment, the side core-pulling mechanism includes a shovel base 100 and a slider 200 that are slidably matched. When the mold is closed, the shovel base 100 wedges the slider 200 tightly through the wedge-shaped surface matched with the slider 200; When opening the mold, the shovel base 100 drives the slider 200 to withdraw backward through the slider chute guide mechanism arranged between it and the slider 200 and can keep the two in linkage, so as to realize core pulling.

[0023] Wherein, the slider 200 is provided with a thimble hole 210 communicating with the cavity (the cavity is formed by the slider 200 and other parts of the injection mold), and the thimble hole 210 runs through the left and right sides of the sl...

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Abstract

The invention discloses a side core-pulling mechanism. The side core-pulling mechanism comprises a shovel bade and a slide block which are in sliding fit, wherein an ejector pin hole communicated with a mould cavity is formed in the slide block, an ejector pin capable of moving back and forth in the ejector pin hole is arranged in the ejector pin hole; the ejector pin at least comprises a front section and a rear section, wherein a return spring positioned between the rear section and the slide block sleeves the front section; when the side core-pulling mechanism is in a mould closed state, the rear section can contact with the bottom surface of a slide slot, and the front section can contact with a plastic part in the mould cavity; in a mould opening process of the side core-pulling mechanism, the rear section gradually drops out from the slide slot along with the movement of the shovel base, so that the front part is kept to contact with the plastic part in the mould cavity. The invention further discloses an injection mould. In a mould opening process of backwards dropping out the slide slot, the plastic part is held by the ejector pin to prevent the plastic part from being deformed due to adhesion of the plastic part and the slide block, so that the molding quality of the plastic part is guaranteed, and the qualified rate of the products is increased.

Description

technical field [0001] The invention relates to the technical field of injection molds, in particular to a side core pulling mechanism and an injection mold. Background technique [0002] In the application field of injection molds, there are many mechanisms that use sliders for lateral core pulling. If the area of ​​the part formed by the slider is large, or it is a deep cavity and thin-walled structure, it is prone to the problem of difficult demoulding. Difficulty in demoulding usually affects the molding quality of the product. It is more common that the product is deformed due to the adhesion of the slider and the product. Therefore, the existing side core-pulling mechanism is difficult to adapt to the large molding area of ​​the slider and the deep cavity. Production requirements for wall structures and other products. Contents of the invention [0003] The main purpose of the present invention is to provide a side core-pulling mechanism, aiming to solve the technic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C45/33
CPCB29C45/33
Inventor 袁建忠张松平王国强陈世永
Owner SHENZHEN SKYWORTH PRECISION TECH
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