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Rotational core pulling mechanism for injection mould

An injection mold and core-pulling mechanism technology, applied in the field of injection mold rotary core-pulling mechanism, can solve the problems of long injection molding production cycle, poor positioning reliability, etc., and achieve the effects of good working condition, accurate and reliable positioning, and good economic benefits.

Inactive Publication Date: 2016-08-31
ZHEJIANG TAIZHOU MEIDUO MOLD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Using a hydraulic system to achieve rotary core-pulling mold injection molding has a long production cycle (over 50 seconds) and poor positioning reliability

Method used

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  • Rotational core pulling mechanism for injection mould
  • Rotational core pulling mechanism for injection mould
  • Rotational core pulling mechanism for injection mould

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Embodiment Construction

[0021] The following are specific embodiments of the present invention and in conjunction with the accompanying drawings, the technical solutions of the present invention are further described, but the present invention is not limited to these embodiments.

[0022] Such as figure 2 with image 3 The injection mold shown includes a fixed mold base plate 1, a fixed mold height pad 2, a fixed mold plate 3, a fixed mold insert 4 set on the fixed mold plate 3, a movable mold base plate 5 and a fixed mold base plate set on the movable mold base plate 5. The movable template 6 is provided with a movable mold insert 7 cooperating with the fixed mold insert 4 on the movable template 6, and there is formed between the movable mold insert 7 and the fixed mold insert 4 for forming a plastic mold with concave undercuts. The mold cavity of the piece, the hot runner nozzle 8 arranged on the fixed mold seat plate 1 communicates with the mold cavity. Such as figure 2 As shown, the rotary ...

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Abstract

The invention provides a rotational core pulling mechanism for an injection mould, belongs to the technical field of moulds, and aims at solving the problems of long production period and poor positioning reliability of the existing die injection adopting the rotational core pulling mechanism. The mechanism comprises a rotational core pulling block which is hinged with a movable mould embedding block, wherein a forming part for forming an inwards-concaved inverted buckle of a plastic part is arranged at the lower part of the rotational core pulling part; a driving structure is arranged between a movable mould seat board and the rotational core pulling block and is used for driving the rotational core pulling block to rotate around a point where the rotational core pulling block is hinged with the movable mould embedding block during mould opening; a spring is arranged between the movable mould seat board and a movable mould board and is used for enabling the movable mould board to cling to a fixed mould board all the time within a specified mould opening range; a pulling structure is arranged between the movable mould seat board and the movable mould and is used for pulling the movable mould board to separate from the fixed mould board when the mould opening distance is beyond the specified distance. The mechanism has the advantages that the mould injection production cycle can be effectively reduced, and persistent reliable positioning can be achieved.

Description

technical field [0001] The invention belongs to the technical field of moulds, and relates to a core-pulling mechanism of an injection mold, in particular to a rotary core-pulling mechanism of an injection mold. Background technique [0002] figure 1 It is the handle of the transparent panel of the refrigerator drawer. The cross-section adopts the arc shape, which is not only beautiful but also meets the requirements of ergonomics. It is widely used in household appliances such as refrigerators. The plastic part is usually molded by injection molding. The overall product has an up and down mold opening structure as shown in the figure, but the arc-shaped handle part shown in the figure belongs to the up and down buckle structure. Demoulding by rotary core pulling. [0003] The conventional rotary core-pulling mechanism uses a motor to drive the rotation, or a linearly moving rack meshes with a gear to drive the core-pulling mechanism to rotate. In practical applications, t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C45/33
CPCB29C45/33B29C45/0025B29C45/332
Inventor 黄悦
Owner ZHEJIANG TAIZHOU MEIDUO MOLD CO LTD
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