Two-step ejection structure of injection mold
A secondary ejection and injection mold technology, which is applied in the field of injection mold structure, can solve the problems of increasing mold cost, increasing ejection stroke, manual demoulding, etc., and achieves the effect of compact structure, shortened stroke and reliable structure
Active Publication Date: 2016-12-07
宁波学大机械设备有限公司
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[0002] Generally speaking, when taking out the product from the mold, whether it is a single or multi-component ejection mechanism, the ejection action is completed at one time, but for a product with a special shape, if the product is ejected at one time If the product is completely separated from the mold or the product cannot be separated from the ejection mechanism, it needs to be manually demoulded, or the ejection stroke of the ejection mechanism needs to be increased, or the ejection system needs to be changed to a secondary ejection, which prevents the mold from being replaced. Good automation and increase the difficulty of mold design
[0003] The common secondary ejection structure (such as the secondary ejection structure in the patent application number 201210252372.4) mostly needs to increase the ejection stroke, which will increase the cost of mold production and processing
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[0026] The following description serves to disclose the present invention to enable those skilled in the art to carry out the present invention. The preferred embodiments described below are only examples, and those skilled in the art can devise other obvious variations.
[0027] Such as Figure 1-13 As shown, one embodiment of the present invention comprises fixed mold part 1, movable mold part 2, ejector part 3 and ejector pin 4, is used for molding workpiece 5 between fixed mold part 1 and movable mold part 2, and ejector part 3 It is arranged on the movable mold part 2, and the ejector part 3 is pushed to move on the movable mold part 2 by the ejector pin 4, so as to realize the ejection of the workpiece 5. specific:
[0028] The fixed mold part 1 includes a fixed template 14, a fixed mold fixed plate 12, a positioning ring 11 and a gate sleeve 13; the fixed mold fixed plate 12 is fixed above the fixed template 14, and there is a step on the sprue sleeve 13, which is ins...
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The invention discloses a two-step ejection structure of an injection mold. The two-step ejection structure is characterized by comprising a fixed mold component, a movable mold component, an ejection component and an ejection rod; a part between the fixed mold component and the movable mold component is used for molding of a workpiece, the ejection component is arranged on the movable mold component, and the ejection rod pushes the ejection component to move on the movable mold component so that the aim of ejecting the workpiece is achieved. The aims that the structure is simple and compact, and the stroke does not need to be added are achieved through the two-step ejection structure of the injection mold.
Description
technical field [0001] The invention relates to an injection mold structure, in particular to a secondary ejection structure in the injection mold. Background technique [0002] Generally speaking, when taking out the product from the mold, whether it is a single or multi-component ejection mechanism, the ejection action is completed at one time, but for a product with a special shape, if the product is ejected at one time If the product is completely separated from the mold or the product cannot be separated from the ejection mechanism, it needs to be manually demoulded, or the ejection stroke of the ejection mechanism needs to be increased, or the ejection system needs to be changed to a secondary ejection, which prevents the mold from being replaced. Good automation and increase the difficulty of mold design. [0003] The common secondary ejection structure (such as the secondary ejection structure in the patent application number 201210252372.4) mostly needs to increase...
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IPC IPC(8): B29C45/40
CPCB29C45/4005
Inventor 高建华
Owner 宁波学大机械设备有限公司