Ventilation door double-color mold

Abstract

The invention relates to a ventilation door double-color mold. The mold comprises a plate B and a lower fixing plate. The lower fixing plate is provided with a material jacking plate. The center of the plate B is provided with a rotation device and a core-pulling positioning device. The rotation device comprises a support block above the plate B and a rotation rod going through the center of the plate B. The rotation rod and the support block are connected through a crossbeam. The core-pulling positioning device comprises a sliding block, a locking block above the sliding block and a spring at the inner side of the sliding block. The rotation rod of the rotation device drives a product on the support block so that after first injection molding, the product immediately enters a second injection molding position and thus a production period is shortened and efficiency is improved. Through cooperation of the locking block of the core-pulling positioning device and an inclined guide pillar, a locking force is applied for the sliding block. The ventilation door double-color mold has a reasonable design and can be widely promoted.

Description

technical field [0001] The invention relates to a mold, in particular to a two-color mold for a damper. Background technique [0002] There are PP-T20 hard rubber and TPE soft rubber molds for damper products. The hard rubber mold ensures the strength when the air is released, and the soft rubber ensures that the air does not leak when the damper is closed. At present, the damper mold is a secondary injection mold, that is, the hard rubber PP-T20 material is injected first, and then the PP-T20 product is put into the soft rubber mold, and then the TPE material is injected. In this production process, the product molding cycle is lengthened. Because when producing soft rubber, hard rubber products need to be completely cooled before they can be put into soft rubber molds, which also increases the logistics transfer in the workshop. In addition, in terms of product quality control, it is necessary to manually put the hard rubber product into the soft rubber mold. During the p...

AI Technical Summary

Problems solved by technology

At present, the damper mold is a secondary injection mold, that is, the hard rubber PP-T20 material is injected first, and then the PP-T20 product is put into the soft rubber mold, and then the TPE material is injected. In this production process, the product molding cycle is lengthened. Because when producing soft rubber, hard rubber products need to be completely cooled before they can be put into soft rubber molds, which also increases the logistics transfer in the workshop

In addition, in terms of product quality control, it is necessary to manually put the hard rubber product into the soft rubber mold. During the placing process, the hard rubber product may be deviated, resulting in the scrapping of the hard rubber and overflow during production.

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