A kind of demoulding mechanism and demoulding method

Abstract

The invention provides a demolding mechanism and method. When demolding starts, the lower end of an ejection rod abuts against the rear end of a face slide way, and the ejection block is attached to a to-be-demolded workpiece; while the workpiece is demolded, a core-pulling block moves forwards the front end of a base block along a slide rail, the lower end of the ejection rod slides along the face slide way from the rear end of the face slide way to the front end of the face side way, the ejection rod gradually moves upwards in the axial direction to drive the ejection block so that the workpiece can be ejected upwards, and meanwhile the workpiece are moved out in the demolding direction; and when the lower end of the ejection rod moves to the front end of the face slide way, the workpiece is ejected to the maximum height, and at the moment, the workpiece is ejected to be in the state that a self-drilling screw column on the workpiece completely breaks away from the ejection block on a mold, so that core-pulling demolding is finished. Thus, through the demolding mechanism, core-pulling demolding operation can be convenient to finish, the structure is simple, and operation is convenient.

Description

technical field [0001] The invention relates to a demoulding mechanism and a demoulding method, belonging to the technical field of injection mold processing. Background technique [0002] In a light distribution mirror product for automobile lamps, self-tapping screw columns are provided on the product. This product and similar products are generally manufactured by injection molding. The workpiece is separated from the mold, that is, it needs to be demolded, but, if figure 1 As shown, the axial direction of the self-tapping screw column 11 on the workpiece 8 is inconsistent with the demoulding direction, and the self-tapping screw column 11 forms a barb relative to the demoulding direction, which is not easy to demould, so it is necessary to set a ejector block to pull the core The mode of demoulding finishes the demoulding of workpiece 11. [0003] There are various core-pulling and demoulding mechanisms in the prior art, but for specific product structures and specific...

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Problems solved by technology

[0002] In a light distribution mirror product for automobile lamps, self-tapping screw columns are provided on the product. This product and similar products are generally manufactured by injection molding. The workpiece is separated from the mold, that is, it needs to be demolded, but, if figure 1 As shown, the axial direction of the self-tapping screw column 11 on the workpiece 8 is inconsistent with the demoulding direction, and the self-tapping screw column 11 forms a barb relative to the demoulding direction, which is not easy to demould, so it is necessary to set a ejector block to pull the core The demoulding mode completes the demoulding of the workpiece 11

[0003] There are various core-pulling and demoulding mechanisms in the prior art, but for specific product structures and specific mold structures, core-pulling and demoulding mechanisms cannot be used universally, and a suitable demoulding mechanism needs to be designed according to the actual situation , to complete the demoulding of the workpiece

If the design of the core-pulling and demoulding mechanism is not clever enough, not only the structure is complex, the cost is high, but also the operation is difficult, which is not conducive to the improvement of processing efficiency

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