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Self-locking variable direction core-pulling device for injection mold

A technology for injection molds and core-pulling devices, which is applied in the field of self-locking and reversing core-pulling devices for injection molds, and can solve problems such as product scrapping, complex mold structures, and low efficiency of core-pulling and demoulding

Active Publication Date: 2014-04-30
宁海胜利模具有限公司
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0002] In the injection mold, the device in which the direction of the applied force and the moving direction of the core block is oblique or orthogonal to each other is called a direction-changing core-pulling device. The active wedge-shaped slider of the reversing core-pulling device is connected with the piston rod of the oil cylinder, and the driven wedge-shaped slider is connected with the core-pulling block; when the injection mold is working, the core-pulling block is subjected to strong injection force, and it will pass through in the opposite direction. The direction-changing core-pulling device pushes the piston rod of the oil cylinder back, causing the product to be scrapped. For this reason, it is

Method used

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  • Self-locking variable direction core-pulling device for injection mold
  • Self-locking variable direction core-pulling device for injection mold
  • Self-locking variable direction core-pulling device for injection mold

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Embodiment Construction

[0022] refer to Figure 1 to Figure 5 , a core-pulling device for self-locking and direction-changing injection molds of the present invention, including a driving wedge slider 1, a driven wedge slider 2, a self-locking block 3, and an oil cylinder 4, wherein: the driving wedge slider 1 is as follows There is a wedge-shaped block steel member with a slope of 22° to 30° from left to right between it and the right side. The slope of the active wedge slider 1 is provided with a T-shaped channel in cross section, which is called a T-shaped chute. 11. The notch edge of the T-shaped chute 11 is called the eaves 12, and the distance between the top of the eaves 12 and the bottom of the trough is called the groove space 13;

[0023] The driven wedge slider 2 is a wedge-shaped block-shaped steel member provided with the same inclined surface as the active wedge slider 1, and the inclined surface of the driven wedge slider 2 is provided with a T-shaped track in cross section called T-s...

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Abstract

The invention discloses a self-locking variable direction core-pulling device for an injection mold. The device comprises a drive wedge-shaped slide block (1), a driven wedge-shaped slide block (2), a self-locking block (3) and an oil cylinder (4). By adoption of the device consisting of the above members, according to the technical scheme, the self-locking block is fixedly arranged in a T-shaped chute of the drive wedge-shaped slide block, a locking surface and an import inclined surface are formed below the self-locking block, a locking table is arranged on the T-shaped chute of the drive wedge-shaped slide block, the locking surface is correspondingly matched with the locking table, the driven wedge-shaped slide block is locked by the driving wedge-shaped slide block through the self-locking block during die assembly, and the problems and defects of complex structure, low efficiency, high failure rate and high cost existing in the prior art are overcome, so that the variable direction core-pulling device for the injection mold achieves the aims of simplifying the structure, reducing the cost, improving the demolding efficiency and reducing the failure.

Description

technical field [0001] The invention relates to a core-pulling and demoulding device for an injection mold, in particular to a self-locking and direction-changing core-pulling device for an injection mold that is used for direction-changing core-pulling and demoulding when the injection mold is fixed. Background technique [0002] In the injection mold, the device in which the direction of the applied force and the moving direction of the core block is oblique or orthogonal to each other is called a direction-changing core-pulling device. The active wedge-shaped slider of the reversing core-pulling device is connected with the piston rod of the oil cylinder, and the driven wedge-shaped slider is connected with the core-pulling block; when the injection mold is working, the core-pulling block is subjected to strong injection force, and it will pass through in the opposite direction. The direction-changing core-pulling device pushes the piston rod of the oil cylinder back, cau...

Claims

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Application Information

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IPC IPC(8): B29C45/40B29C45/33
CPCB29C45/4435B29C2045/445
Inventor 汪进兵
Owner 宁海胜利模具有限公司
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