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Retreat-preventing mechanism for core loosing of die, and die

A mold and anti-return technology, which is applied in the mold core-pulling anti-retraction mechanism and the field of molds, can solve the problems of unqualified products and the inability to increase locking blocks, etc., and achieve high-quality results

Active Publication Date: 2018-08-28
上海信羽电子科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, during the injection molding process, the core will retreat along the core-pulling direction due to the injection pressure, which will cause the product to be unqualified
At the same time, because it is a fixed mold core pulling, ordinary locking blocks cannot be added

Method used

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  • Retreat-preventing mechanism for core loosing of die, and die
  • Retreat-preventing mechanism for core loosing of die, and die
  • Retreat-preventing mechanism for core loosing of die, and die

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Embodiment Construction

[0050] The implementation of the present invention will be illustrated by specific specific examples below, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0051] It should be noted that the structures, proportions, sizes, etc. shown in the drawings of this specification are only used to match the content disclosed in the specification, for those who are familiar with this technology to understand and read, and are not used to limit the conditions for the implementation of the present invention , so it has no technical substantive meaning, and any modification of structure, change of proportional relationship or adjustment of size shall still fall within the scope of the disclosure of the present invention without affecting the functions and objectives of the present invention. within the range covered by the technical content. At the same time, terms such as "upper", ...

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PUM

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Abstract

The invention provides a retreat-preventing mechanism for core loosing of a die. The retreat-preventing mechanism comprises a die body, a drive unit mounted on the die body, a driving member connectedwith the output terminal of the drive unit, an internal drawing fixed block, an internal drawing arranged on the internal drawing fixed block and a retreat-preventing block, wherein a guide groove extending along an interior-to-exterior direction is arranged in the internal drawing fixed block; the retreat-preventing block is embedded in a guiding groove; the driving member is provided with an active part; the retreat-preventing block is provided with a passive part mating with the active part; and a spacing groove is arranged on the die body. When the drive unit pushes the driving member tomove forward, the driving member pushes the retreat-preventing block, the internal drawing fixed block and the internal drawing head to move forward, and the driving member also pushes the retreat-preventing block to extend outward and then to be embedded into the spacing groove in the die body; and when the drive unit pulls the driving member to move backward, the driving member pulls the retreat-preventing block to contract inwardly and retreat from the spacing groove, and the driving member pulls the retreat-preventing block, the internal drawing fixed block and the internal drawing head tomove backward.

Description

technical field [0001] The invention relates to a mold core-pulling mechanism, in particular to a mold core-pulling anti-retreat mechanism and a mold. Background technique [0002] When using an injection mold to process a product with a through hole, groove, or boss, the product cannot be directly released from the mold during the demoulding process, but must be used to form the through hole, groove, or boss first. The core is pulled out from the mold body, that is, core pulling. This requires a mechanism that can extract and reset the core, that is, a core-pulling mechanism. [0003] The fixed mold core is usually driven by an oil cylinder. In the production process, the core is first moved forward relative to the mold body through the oil cylinder; then the injection molding process is performed; after the injection molding is completed, the core is pulled back relative to the mold body through the oil cylinder, thereby realizing core pulling. However, during the injec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C45/33
CPCB29C45/0025B29C45/33B29C45/332
Inventor 虞臣春郭建钢寿奇奇钱小林
Owner 上海信羽电子科技有限公司
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