Arc-shaped core-pulling structure for mold

Abstract

The invention relates to an arc-shaped core-pulling structure for a mold. The arc-shaped core-pulling structure comprises a large sliding block, a self-rotation cylinder and a rotary insert, wherein the self-rotation cylinder is arranged on the large sliding block and is connected with the large sliding block by a rotary shaft; the large sliding block is provided with an arc-shaped containing chamber; the rotary insert is arranged in the arc-shaped containing chamber and is connected with the large sliding block by a pivot; the self-rotation cylinder is provided with a telescopic shaft which is connected with the rotary insert by a pivot. The arc-shaped core-pulling structure has the beneficial effects that the transferring step of force between the components can be greatly reduced, and the self-rotation cylinder directly acts on the rotary core-pulling insert, so that the loss of the force can be reduced; the self-rotation cylinder can rotate by self and is omni-directional without the clamping phenomenon, so that the stability of the mechanism can be improved and further high-speed, high-quality and stable operation of the mold can be achieved; in addition, unstable structure factors in the production process of the mold can be controlled, the mold can be ensured to meet the mass-production requirement, and the quality of the mold and the stable movement of all the mechanisms can be improved.

Description

technical field [0001] The invention relates to the technical field of molds, in particular to an arc-shaped core-pulling structure of a mold. Background technique [0002] At present, in the plastic mold industry, for individual bent pipe plastic products, it is impossible to achieve normal demoulding through the conventional lateral core-pulling structure. To solve the demoulding problem of these bent pipe products, arc-shaped core-pulling methods are usually used. The existing arc-shaped core-pulling structure usually uses ordinary sliders and connecting rods to drive the rotating inserts to realize circular-arc core-pulling, in which there are many steps for force transmission. Then push the connecting rod, and then move the rotating insert. Due to the many steps of force transmission, the probability of mold failure during mass production will be greatly increased, the inclined guide post will be broken, the process of core pulling will be stuck, and abnormal noise wil...

AI Technical Summary

Problems solved by technology

Due to the many steps of force transmission, the probability of mold failure during mass production will be greatly increased, the inclined guide post will be broken, the process of core pulling will be stuck, and abnormal noise will seriously affect mass production or even fail to mass production, and the maintenance required The time will be relatively long, which will delay the mass production and sales of products

Images