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Auxiliary jacking device for slanting tip core of injection mould

A technology of injection mold and ejector device, applied in the field of inclined top core-pulling mechanism, can solve the problems of low efficiency, poor quality, and many labors, etc.

Inactive Publication Date: 2009-12-30
NINGBO SHUANGLIN MOULD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, the existing technology has problems and deficiencies such as high labor cost, low efficiency, large product deformation and poor quality, and process restrictions on product demoulding design.

Method used

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  • Auxiliary jacking device for slanting tip core of injection mould
  • Auxiliary jacking device for slanting tip core of injection mould
  • Auxiliary jacking device for slanting tip core of injection mould

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Experimental program
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Embodiment Construction

[0017] refer to Figure 1 ~ Figure 4 , an auxiliary ejector device for an inclined top core pulling of an injection mold according to the present invention, comprising an inclined ejector rod 1, a slider 11, an ejector pin 12, a limit bolt 13, a spring 14, and a core insert 2, wherein: the The inclined ejector rod 1 is a rod-shaped steel member with a rectangular cross-section, and a rectangular inclined ejector core block protruding from one side is provided at the upper end. A rectangular groove is provided on the side opposite to the protruding surface, and the angle between the central axis of the long side of the bottom of the rectangular groove and the axis of the rod-shaped body is equal to the angle between the inclined top of the inclined ejector rod 1 in the movable mold, that is, the angle with the movable mold. The vertical axis of the mold is parallel, the upper part of the bottom surface of the rectangular groove is provided with a blind screw hole, and the lower...

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Abstract

The invention discloses an auxiliary jacking device for a slanting tip core of an injection mould. The device comprises a slanting mandril (1), a slide block (11), a thimble (12), a stop bolt (13), a spring (14) and a core insert (2). The device adopts a technical scheme that an auxiliary jacking mechanism consisting of the slide block, the thimble, the stop bolt and the spring is arranged in the slanting ejecting block of the slanting mandril; a straight step section is arranged on an inclined surface of a tip chute hole of the core insert; and when the slanting mandril is inclined forward along with the slide block, the straight step section temporarily does vertical sliding to drive the thimble to jack an injection product outwards to assist the slanting tip core in overcoming the packaging force of a transverse rib of an injection product so as to realize demolding of the slanting tip core. The auxiliary jacking device for the slanting tip core of the injection mould ensures that a thin shell injection product with a plurality of transverse ribs inside can realize automatic demolding of the slanting tip core, thereby achieving the aims of reducing recruitment cost, improving manufacturing efficiency and improving product quality without any process restricting requirement on a product demolding design.

Description

technical field [0001] The invention relates to an inclined top core-pulling mechanism of an injection mold, specifically refers to an inclined top core-pulling mechanism for an injection mold with multiple transverse ribs inside and a large force for wrapping an inclined top core block on an injection molded product. Auxiliary ejection device for the core. Background technique [0002] For thin-shell injection molded products with multiple transverse ribs inside, the ribs of the product have a relatively large wrapping force on the slanted top core, and the rigidity of the product itself is insufficient. The product is deformed, and in severe cases, the product is tightly wrapped on the inclined top core block and cannot be released from the mold. The existing technology adopts the injection molding process, adding release agent, and with the help of bamboo tools, manually assists the prying mold to remove the product when pulling the core of the inclined roof, and then co...

Claims

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Application Information

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IPC IPC(8): B29C45/40B29C45/33
Inventor 李国平
Owner NINGBO SHUANGLIN MOULD CO LTD
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