A core-pulling device for an arc-shaped tubular product of an injection mold

Abstract

The invention discloses a core pulling device for a circular arc tubular product of an injection mold. The core pulling device comprises a base plate (1), a sliding plate (2), a cover plate (3) and a locking block (4). According to the core pulling device disclosed by the invention, the sliding plate is provided with a fan wheel slot, a strip-shaped sliding chute, a fan-shaped gear, a rack, an oil cylinder A and an oil cylinder B; the fan wheel slot is provided with a wheel lock hole and a center shaft; the fan-shaped gear is provided with a circular arc-shaped core pulling block; the sliding plate is positioned on the base plate; the cover plate is positioned on the sliding plate; the fan-shaped gear is positioned in the fan wheel slot; the rack is positioned in the strip-shaped sliding chute; the fan-shaped gear is engaged with the rack; the oil cylinder A is connected with the sliding plate; a piston rod of the oil cylinder A is connected with the rack; during work of the core pulling device, firstly the oil cylinder A is capable of driving the fan-shaped gear and the circular arc-shaped core pulling block to rotate by virtue of the rack, so that the circular arc-shaped core pulling block is capable of rotationally pulling core from the product; subsequently the oil cylinder B is capable of driving the sliding plate to move rightwards so that the circular arc-shaped core pulling block is totally separated from the product; therefore, core pulling and demolding of the circular arc tubular product are realized, and the aims of alleviating the work intensity, lowering the cost and improving the efficiency are fulfilled.

Description

technical field [0001] The invention relates to a core-pulling and demoulding device for an injection mold, in particular to a device for an injection mold circular-arc tubular product used for ejecting an arc-shaped core-pulling block from a circular-arc tubular product. Core pulling device. Background technique [0002] The prior art injection mold adopts the insert method for the core-pulling and demoulding of arc-shaped tubular products, that is, the arc-shaped core-pulling block is placed in the mold as an insert for turnover, and after the mold is closed and injection-molded, the product is combined with The inserts are taken out from the mold together, and the inserts are manually pulled out of the product with the help of tools; the insert method takes up a lot of manpower, high labor costs, high work intensity, and low production efficiency. Therefore, the existing technology has work intensity. Large, high cost, low efficiency problems and deficiencies. Contents...

AI Technical Summary

Problems solved by technology

[0002] The prior art injection mold adopts the insert method for the core-pulling and demoulding of arc-shaped tubular products, that is, the arc-shaped core-pulling block is placed in the mold as an insert for turnover, and after the mold is closed and injection-molded, the product is combined with The inserts are taken out from the mold together, and the inserts are manually pulled out of the product with the help of tools; the insert method takes up a lot of manpower, high labor costs, high work intensity, and low production efficiency. Big, high cost, low efficiency problems and deficiencies

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