Lifting core-pulling device with angle-lift core block

Abstract

The invention discloses a lifting core-pulling device with an angle-lift core block. The lifting core-pulling device comprises the angle-lift core block (1), a lifting rod (2), a lifting rod sliding seat (3) and a resetting slide groove (4). The technical scheme includes that a core-pulling block with a product profile is manufactured into the angle-lift core block capable of sliding obliquely, the angle-lift core block is slidably arranged on an oblique slide track on the top of the lifting rod, a limiting slide groove and a resetting key are arranged on the angle-lift core block, a limiting pin which is correspondingly matched with the limiting slide groove is arranged on the lifting rod, and the resetting slide groove which is correspondingly matched with the resetting key is arranged on a movable mold core. The shortcomings that yield is low and cost is high in the prior art are overcome. The angle-lift core block moves longitudinally and then moves transversely so as to be pulled out from a longitudinal convex rib and a transverse inverted fastener structure, which are close to each other, of the product, by means of limiting and oblique sliding, damage to the product due to forced mold stripping is avoided, and the purposes of increasing the yield of the product and reducing cost are achieved.

Description

technical field [0001] The invention relates to an inclined top core-pulling mechanism for injection molds, specifically refers to a kind of inclined top that pulls out the core block from a product with a horizontal undercut and a vertical rib structure adjacent to and perpendicular to the undercut. Inclined top core-pulling device for inclined sliding core blocks. Background technique [0002] The core-pulling and demoulding of the injection mold can be divided into longitudinal, transverse and oblique directions. The so-called longitudinal direction is along the opening and closing direction of the injection mold, the so-called transverse direction is the direction orthogonal to the longitudinal direction, and the so-called oblique direction is between the longitudinal direction and the transverse direction. direction. [0003] For the core-pulling demoulding in which the product is equipped with a horizontal undercut and a longitudinal rib structure adjacent to and perp...

AI Technical Summary

Problems solved by technology

[0003] For the core-pulling demoulding in which the product is equipped with a horizontal undercut and a longitudinal rib structure adjacent to and perpendicular to the undercut, the existing technology adopts the method of inclined top pulling to extract the core block from the horizontal undercut structure of the product , and for the longitudinal rib structure that is adjacent to and perpendicular to the undercut, the core block is extruded by forced demoulding; the forced demoulding will cause the rib structure to be damaged to varying degrees, and at the same time, it will produce tops on the front of the product. White, it is called the shoveling phenomenon in the industry. The shoveling phenomenon leads to defective products or even waste products, resulting in a decrease in the pass rate of the product and an increase in production costs. Therefore, the existing technology has the problems and deficiencies of low pass rate and high cost.

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