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Demoulding device, injection mold and injection molded workpiece demoulding method

A demoulding device and workpiece technology, which is applied in the field of injection molding, can solve problems such as low production efficiency, long demoulding cycle, and difficult demoulding of injection molded workpieces, and achieve the effect of avoiding damage and simplifying demoulding steps

Active Publication Date: 2021-08-10
SHENZHEN MEIHAO CHUANGYI MEDICAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The invention provides a demoulding device, an injection mold and a demoulding method for injection molded workpieces, which are used to solve the problems of difficult demoulding from injection molded workpieces, long demoulding cycle and low production efficiency in the prior art

Method used

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  • Demoulding device, injection mold and injection molded workpiece demoulding method
  • Demoulding device, injection mold and injection molded workpiece demoulding method
  • Demoulding device, injection mold and injection molded workpiece demoulding method

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Embodiment Construction

[0029] In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0030] It should be noted that, in this specification, the ejection direction of the ejector rod is defined as the "upper" direction, and the sliding direction of the push block relative to the ejector block is defined as the "front" direction.

[0031] refer to figure 1 , figure 2 , the first embodiment of the present invention provides an injection mold for molding an injection molded workpiece 1, the injection molded workpiece 1 has an inner cavity 11, the inner cavity 11 is formed by a core 2, and the core 2 has a The core-pulling end 21 of the cavity 11 opening.

[0032] The injection mold includes a movable mold (not shown in the figure), a fixed mold (not shown in the figure) and a core 2. After the movable mold and the fixed mold are ...

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Abstract

The invention provides a demoulding device suitable for demoulding an injection molded workpiece with an inner cavity, comprising a jacking block, a pushing block and a push rod; Reduced; the push block is provided with the same storage hole as the external structure of the installation part; the installation part penetrates from the rear end to the storage hole, and its front end is used to fix the core used to form the inner cavity of the injection molded workpiece; the outside of the core After molding the injection molded workpiece, the injection molded workpiece completely closes the front end opening of the receiving hole; the ejector rod is arranged under the ejector part, and is used to push the top block and the push block to move upward; the push block can also move forward relative to the top block, so that A ventilation gap is formed between the receiving hole and the outer wall of the installation part; a ventilation cavity is also provided in the top block from the rear end of the ejector part to the ventilation gap, and the air is ventilated from the inside of the top block, and the gas exerts pressure on the injection molded workpiece, so that The injection molded workpiece is separated from the core. The invention also provides an injection mold and a demoulding method for an injection molded workpiece.

Description

technical field [0001] The invention relates to the technical field of injection molding, in particular to a demoulding device, an injection mold and a demoulding method for an injection molded workpiece. Background technique [0002] There are usually two demoulding methods for injection molded workpieces with inner cavity structure: the first is to pull the core that forms the inner cavity structure of the injection molded workpiece, and then demould; the second is to first remove the molded workpiece-core The structural part is removed from the mold and the injection molded part is demoulded from the core. For the second demoulding method, when the inner cavity of the injection molded workpiece is deep, it is difficult to automatically fall off or brush off, so manual demoulding is usually required. However, for thermosetting injection molding parts, the surface temperature of the injection molding parts is high after the mold is opened, and it is difficult to remove the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C45/33B29C45/44B29C45/43
CPCB29C45/332B29C45/435B29C45/44B29C2045/445B29C2045/4492
Inventor 林桂典周道福朱瀚吴华
Owner SHENZHEN MEIHAO CHUANGYI MEDICAL TECH
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