Inclined core pulling device for fixed die

Abstract

The invention discloses an inclined core pulling device for a fixed die. The inclined core pulling device comprises a base (1), a connecting block (2), an unlocking block (3), a pin locking block (4), a spring (5), an inclined core pulling block (6) and an oil cylinder (7). The inclined core pulling device disclosed by the invention is fixedly arranged in the fixed die of a mold and has the technical scheme that during locking, the oil cylinder forwards pushes the unlocking block, the unlocking block pushes a connecting block, the connecting blocks drives the inclined core pulling block to be embedded into a die cavity of the fixed die to be in place, the pin locking block arranged on the unlocking block is ejected out, and the connecting block and the inclined core pulling block are locked; during core pulling, the oil cylinder backwards pulls the unlocking block, the unlocking block hooks the connecting block after sliding through a lagging hook, at the time, the inclined surface of the unlocking block upwards rejects the pin locking block, the connecting block is unlocked, the unlocking block hooks the connecting block and backwards slides, and in addition, the inclined core pulling block is driven to be pulled out and demolded from the outer side surface of a product. Through the driving of the oil cylinder, the pin locking block is locked, the unlocking block is unlocked, and an injection molding requiring the fixed die inclined core pulling reaches the goals of simple structure and cost reduction.

Description

technical field [0001] The invention relates to a core-pulling and demoulding device for an injection mold, in particular to an oblique core-pulling device for a fixed mould, which is used to pull out an oblique core-pulling slider located on the outer side of an embedded product of the fixed mold of the injection mold. Background technique [0002] The oblique pull-out of the oblique core-pulling slider located in the fixed mold of the injection mold adopts a three-plate mold structure in the prior art, and uses the power of the fixed template and the cavity plate to be separated first when the mold is opened, and is installed between the fixed template and the cavity plate. The mechanism in between first pulls out the inclined core-pulling slider embedded in the outer surface of the product, and then separates the cavity plate from the movable mold along the mold parting surface, and then the product is ejected from the mold by the ejector on the movable mold core; the thre...

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Problems solved by technology

[0002] The oblique pull-out of the oblique core-pulling slider located in the fixed mold of the injection mold adopts a three-plate mold structure in the prior art, and uses the power of the fixed template and the cavity plate to be separated first when the mold is opened, and is installed between the fixed template and the cavity plate. The mechanism in between first pulls out the inclined core-pulling slider embedded in the outer surface of the product, and then separates the cavity plate from the movable mold along the mold parting surface, and then the product is ejected from the mold by the ejector on the movable mold core; the three-plate mold Compared with the two-plate mold, the structure is more complicated, and the demoulding work stroke is longer. When it is applied, a larger injection molding machine needs to be used to meet its work stroke, resulting in the waste of "big horse-drawn carts". Therefore, the existing technology has complex mold structures and high manufacturing costs. High, high application cost problems and deficiencies

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