Spiral demoulding device of bevel gear injection mold

Abstract

The invention discloses a spiral demoulding device of a bevel gear injection mold. The spiral demoulding device of the bevel gear injection mold comprises a rotary mold cavity (1), a moving mold loading plate (2), a pressing plate (3), a bearing A (4), a bearing B (4) and an ejector sleeve (5). According to the spiral demoulding device, because the device formed by the components above is adopted, the side wall of the rotary mold cavity is provided a bevel gear molded surface which is used for forming a bevel gear product and is also named as bevel gear cavity; the rotary mold cavity can be rotatably arranged between the moving mold loading plate and the pressing plate through the bearing A and the bearing B; the upper part of a core rod of the ejector sleeve is used as a penetrating core for positioning a direct gear embedded element and is positioned in the center of the bevel gear cavity; the lower end of the sleeve core rod is fixedly connected with a base plate of the moving mold; the upper end of a sleeve of the ejector sleeve is positioned on the bottom of an embedded element hole below the bevel gear cavity; and the lower end of the sleeve part is fixedly connected with a top plate of the moving mold. Through the technical scheme that the rotary mold cavity is driven to rotate by the bevel gear product, one mould which can be used for producing multiple bevel gear injection molds by one mold can be simplified in structure, and reduces faults and the cost.

Description

technical field [0001] The invention relates to a demoulding and ejecting mechanism of an injection mold, in particular to a spiral demoulding device of a helical gear injection mold used for ejecting and demoulding an injection molded helical gear product. Background technique [0002] Injection-molded helical gear products require spiral ejection and demoulding. In the prior art, the oil cylinder is driven by the rack to drive the gear to rotate the screw to drive the product to carry out spiral ejection and demoulding. Due to the structure of the oil cylinder, rack, gear and screw linkage conversion mechanism The complexity is high and the cost is high, especially the production cost of an injection mold with more helical gear products in one mold, and because there are many motion conversion links and fault points, the maintenance cost of mold production and operation is high. Therefore, the existing technology has a structure Problems and deficiencies such as complexity...

AI Technical Summary

Problems solved by technology

[0002] Injection-molded helical gear products require spiral ejection and demoulding. In the prior art, the oil cylinder is driven by the rack to drive the gear to rotate the screw to drive the product to carry out spiral ejection and demoulding. Due to the structure of the oil cylinder, rack, gear and screw linkage conversion mechanism The complexity is high and the cost is high, especially the production cost of an injection mold with more helical gear products in one mold, and because there are many motion conversion links and fault points, the maintenance cost of mold production and operation is high. Therefore, the existing technology has a structure Problems and deficiencies of complexity, many faults, and high cost

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