Secondary slide mechanism for inverted front mold

Abstract

The invention discloses a secondary slide mechanism for an inverted front mold. The secondary slide mechanism comprises a rear mold core, a slide assembly, a sliding seat, a slide base and a square inclined guide column, the slide base is fixed on the front mold, and the square inclined guide column is fixed on the rear mold core. The slide assembly comprises a slide insert and a slide insert pin. The slide insert is arranged in the sliding seat in a sliding mode in the inclination direction of an inverted buckling column, the bottom end of the slide insert abuts against the square inclined guide column, and a spring is arranged between the top end of the slide insert and the inner wall of the sliding seat. The slide insert pin is arranged in the axial direction of the inverted buckling column, the top end of the slide insert pin is fixed to the sliding seat, and the bottom end of the slide insert pin is inserted into the slide insert. The secondary slide mechanism for the inverted front mold has the advantages that structures and accessories such as a front mold elastic plate or an oil cylinder are omitted, and the mold structure is simplified; the secondary slide mechanism can be suitable for an injection molding machine table with smaller mold containing thickness, and the production cost is reduced; the structure is stable, work is smooth and the safety coefficient is high; and the synchronous action can be realized when the front and rear molds are opened, the injection molding period is shortened, and the production efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of injection molds, in particular to a secondary positioning mechanism for an inverted front mold. Background technique [0002] In the process of mold design, there may be situations where the surface of a plastic product has an inclined and hollow undercut post, which usually needs to be formed by a front mold positioning mechanism. The existing front mold positioning mechanism usually needs to add a spring plate or use an oil cylinder to change the direction to drive the position movement. Adding a spring plate will involve many other parts, such as adding a set of buckles to control the opening of the spring plate. Make the structure of front die position mechanism become very complicated. Increasing the spring plate will also increase the thickness of the mold, resulting in the need to use an injection molding machine with a larger mold thickness, which increases the production cost. In addition, the ...

AI Technical Summary

Problems solved by technology

The existing front mold positioning mechanism usually needs to add a spring plate or use an oil cylinder to change the direction to drive the position movement. Adding a spring plate will involve many other parts, such as adding a set of buckles to control the opening of the spring plate. Makes the structure of the front mold positioning mechanism very complicated

The increase of the spring plate will also increase the thickness of the mold, resulting in the need to use an injection molding machine with a larger mold thickness, which increases the production cost

In addition, the existing front mold positioning mechanism must complete a complete set of actions before the front and rear molds are opened. In this way, the mold opening sequence of the mold will inevitably become complicated, increasing the instability of the mold, and will also lead to the failure of the entire mold. Increase in injection molding cycle, which in turn reduces production efficiency

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