Ball bearing type pulling hooking device for fixed mould roof

Abstract

The invention provides a ball bearing type pulling hooking device for a fixed mould roof. The ball bearing type pulling hooking device comprises a pulling head (1), a ball bearing (14), a check ring (2), a slide sleeve (3), a slide sleeve pressing ring (4), a pulling column pressing ring (5) and a pulling column (6). According to the device provided by the invention, a stretchable ball bearing is arranged on the wall of a blind hole of the pulling head, a ball bearing slot is arranged on the pulling column, an empty avoiding step is arranged on the hole wall of the slide sleeve, the pulling head is slidably inserted into the slide sleeve, and a spherical crown of the ball bearing is engaged in the ball bearing slot so as to interconnect the pulling head with the pulling column. When the ball bearing type pulling hooking device is applied, the mould is opened and parted, the pulling column retreats following a moveable mould, and the pulling head and a pull rod of the fixed mould roof are driven to retreat following the pulling column; when the ball bearing of the pulling head arrives at the empty avoiding step of the slide sleeve, the ball bearing is locally squeezed into the empty avoiding step so as to be separated from the ball bearing slot; and according to the technical scheme of unlocking and unhooking of the pulling column and pulling head, the purposes of simplifying structure, increasing reliability, lowering cost, being free from limitation, and being easy to realize standard batch production application are achieved by a pulling device of the fixed mould roof.

Description

technical field [0001] The invention relates to a pulling device for an injection mold, specifically refers to using the mold to open the mold, pulling the top plate of the fixed mold to push the inclined ejector rod of the fixed mold or the ejector rod of the fixed mold, so that the product embedded in the cavity of the fixed mold can be core-pulled and ejected A ball-type retractor for the top plate of the fixed mold for demoulding. Background technique [0002] In the fixed mold cavity, there is an inclined core block or an injection molded product embedded in the fixed mold cavity. When demoulding, it is necessary to use the mold opening and parting to pull the fixed mold top plate between the fixed mold panel and the fixed mold support plate. Push the inclined ejector pin of the fixed mold or the ejector pin of the fixed mold to make the product realize oblique core pulling and ejection out of the fixed mold cavity. The existing devices for pulling the top plate of the ...

AI Technical Summary

Problems solved by technology

[0002] In the fixed mold cavity, there is an inclined core block or an injection molded product embedded in the fixed mold cavity. When demoulding, it is necessary to use the mold opening and parting to pull the fixed mold top plate between the fixed mold panel and the fixed mold support plate. Push the inclined ejector pin of the fixed mold or the ejector pin of the fixed mold to make the product realize oblique core pulling and ejection out of the fixed mold cavity. The existing devices for pulling the top plate of the fixed mold include a damping tip mechanism called a nylon pull rod, a spring ejection mechanism, and an oil cylinder. Drive slider linkage mechanism, among them, the damping tip mechanism and spring ejection mechanism have poor reliability and are easy to fail and are not easy to detect. They can only be found when waste products are produced, resulting in a high product scrap rate and high man-hour cost for replacement and maintenance; the oil cylinder drives the slider Linkage mechanism, complex structure, high production cost, large space occupation, limited application, and cannot be standardized; therefore, the existing technology has problems and deficiencies such as poor reliability, high cost, and limited application

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