Inclined core-pulling mechanism of plastic injection mold

Abstract

The invention relates to an inclined core-pulling mechanism of a plastic injection mold, aiming to solve a problem to achieve the purpose of smooth mold opening in plastic injection molding of parts of automotive rear back doors and door plates. The inclined core-pulling mechanism comprises a moving mold insert, an inclined slide block, a wedge-shaped pressing block and a slide block limiting block, wherein the moving mold insert is provided with a plastic injection mold cavity and a cavity for accommodating the inclined core-pulling mechanism, the inclined slide block is arranged in the cavity of the moving mold insert, the top end of the inclined slide block is provided with a lateral mold core matched with a plastic injection workpiece, a wedge-shaped surface structure is adopted by the tail part of the inclined slide block, two side faces of the inclined slide block are respectively provided with a stop block, the upper end faces of the stop blocks are respectively provided with a compression spring, and the bottom surfaces of the stop blocks are matched with the slide block limiting block. The inclined core-pulling mechanism has the characteristics of simple structure, reliable performance and high practicality, the product quality and production efficiency of plastic injection parts of automotive rear back doors and door plates can be improved significantly, and good economic benefits can be produced for enterprises.

Description

technical field [0001] The invention relates to a mold opening mechanism for an injection mold, in particular to an oblique core-pulling mechanism for an injection mold with a partially abnormal shape, and belongs to the technical field of injection molding. Background technique [0002] With the development of material science and automobile manufacturing technology, more and more plastic parts are used in automobiles. Automotive injection molding products not only require reliable performance, but also match the styling of the vehicle. For example, automotive back doors and door panel parts are generally designed with different shapes in order to meet their functional requirements. It moves smoothly, simplifies the injection molding process, and shortens the product production cycle. [0003] At present, the inclined roof mechanism is generally used for mold opening of injection molding products with two-dimensional spatial angles, but for automotive back door and door pa...

AI Technical Summary

Problems solved by technology

[0003] At present, the inclined roof mechanism is generally used for mold opening of injection molding products with two-directional spatial angles, but for automotive back door and door panel parts, due to the three-dimensional spatial angles of the product, if the inclined roof is used to open the mold Forcibly ejecting the product after the mold can easily lead to product strain and affect the quality of injection molding products; at the same time, the inclined ejector mechanism cannot solve the problem of smooth product ejection, and the production efficiency is low

Images