Workpiece edge covering device

Abstract

The utility model discloses a workpiece edge covering device, which belongs to the technical field of low-pressure injection molding part inner hole skin processing, and comprises a support mould, a push broach group and a traction unit, the traction unit consists of a plurality of pairs of actuating mechanisms, and the actuating mechanisms can synchronously execute actions so as to cover the edge of an inner hole of an injection molding blank. In addition, a limiting element is further arranged on the executing mechanism, and when the equipment runs, the executing mechanism can drive the pressing cutter to conduct the edge covering procedure on the inner hole skin of the injection molding blank within the range of the limiting element. During use, an injection-molded blank is placed at the top of the supporting mould, and the traction unit is arranged below the supporting mould and can penetrate through the supporting mould to wrap an inner hole of the injection-molded blank. The push broach set is composed of a plurality of pressing broaches, one pressing broach is installed on any executing mechanism, and the pressing broaches are provided with rough pattern surfaces so that friction force between the pressing broaches and the skin can be guaranteed.

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