Slant core pulling mechanism with mold cavity built-in oil cylinders conducting perpendicular drive

Abstract

A slant core pulling mechanism with mold cavity built-in oil cylinders conducting perpendicular drive is used for core pulling and demolding of the outer surface of a storage basket. The technical keypoint is that ejector blocks and longitudinally arranged oil cylinders are arranged between first cavity sliding blocks and second cavity sliding blocks, the ejector blocks are located at the upper ends of the oil cylinders and movably arranged on the upper top face of a cavity frame, the oil cylinders are fixed inside the cavity frame, piston rods of the oil cylinders are connected with the ejector blocks, a horizontally arranged sliding rail is arranged on each ejector block and the corresponding side wall of the adjacent cavity sliding block, the two sides of the upper end of each cavity sliding block are both fixedly provided with press strips sliding along the sliding rail in a matched manner, the outer surface of each cavity sliding block is arranged to be an outer slant face whichis gradually inclined inwards from top to bottom, the inner surface of a containing groove is arranged to an inner slant face which is matched with the outer slant face, the inner slant face is provided with guide strips which are longitudinally arranged along the inner slant face, and the outer slant face is provided with leading strips which are in sliding fit with the guide strips. The slant core pulling mechanism the mold cavity built-in oil cylinder conducting perpendicular drive has the advantages of being simple and reasonable in design, compact and stable in structure, not prone to damage, stable in work, high in production efficiency and low in cost.

Description

technical field [0001] The invention relates to a core-pulling and demoulding mechanism of an injection mold, in particular to an oblique core-pulling mechanism driven vertically by an oil cylinder built in a mold cavity. Background technique [0002] When the plastic product is molded and demoulded by the side of the moving mold; if the core-pulling demoulding is horizontal or vertical, relatively speaking, the design space and structure of the mechanism are relatively easy, but for non-horizontal direction Or in the vertical direction, that is, for the core-pulling and demoulding at an oblique angle, the mechanism design is more complicated and difficult. When designing the core-pulling and demoulding mechanism under this working condition, it is subject to two basic conditions: core-pulling power source and mechanism installation space; at present, the existing oblique angle core-pulling mechanism under such working conditions generally adopts an oblique guide column co...

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Problems solved by technology

[0002] When the plastic product is molded and demoulded by the side of the moving mold; if the core-pulling demoulding is horizontal or vertical, relatively speaking, the design space and structure of the mechanism are relatively easy, but for non-horizontal direction Or in the vertical direction, that is, for the core-pulling and demoulding at an oblique angle, the mechanism design is more complicated and difficult. When designing the core-pulling and demoulding mechanism under this working condition, it is subject to two basic conditions: core-pulling power source and mechanism installation Space; at present, the existing oblique angle core-pulling mechanism under such working conditions generally adopts the oblique guide column core-pulling and demoulding mechanism or the external cylinder / oil cylinder oblique-angle core-pulling and demoulding mechanism. The hollow volume is large, the cost of the mold is high, the risk of seizure is high when the slope is ejected, and the injection molding production must occupy an injection molding machine with a large working gear, resulting in a large horse-drawn cart and high production costs. Therefore, the existing technology There are problems and deficiencies such as complex and unstable mechanism, easy damage, large volume, difficult processing, high cost and low work efficiency

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