An injection mold for automatic positioning of inserts

Abstract

The invention discloses an injection mold capable of automatically positioning an insert. The injection mold comprises an insert mounting part, wherein the insert mounting part is provided with threaded holes and is mounted on the injection mold in a threaded connection manner; an insert mounting groove is formed in the insert mounting part; an insert locating piece is arranged on the side edge of the insert mounting groove; an accommodating cavity is formed in the insert locating piece; a limiting ball and a corrugated pipe are arranged in the accommodating cavity; a heating cavity is formed in the insert mounting part; a through hole is formed in the bottom of the insert mounting groove; a support block for supporting a metal insert is movably arranged in the through hole; a heating ring is arranged in the heating cavity; an electromagnet is arranged in the heating ring; a permanent magnet in cooperation with work of the electromagnet is arranged at the bottom of the support block; a spring is arranged between the support block and the heating cavity; a baffle ring is arranged at the tail end of the support block; and a trigger switch is arranged in the heating cavity. Compared with the prior art, the injection mold capable of automatically positioning an insert can stably limit the metal insert in a preset position to prevent the metal insert from separation to cause an accident.

Description

technical field [0001] The invention belongs to the field of mold equipment for injection molding machines, in particular to an injection mold for automatically positioning inserts. Background technique [0002] Plastic products with inserts are widely used at present. It solves the problem that ordinary plastic parts cannot satisfy the mechanical properties, and improves the strength of plastic parts, especially in transmission. When designing molds for plastic products with inserts, it is important to consider how to ensure safe and reliable setting of inserts and efficient and stable production. [0003] as attached figure 1 As shown, the part is a plastic product with an insert, which is widely used, mainly for transmission. The plastic material for this part is ABS, with a metal shaft insert in an elongated shape resembling a worm. When designing the mold for this part, special consideration was required for the fixation of the metal insert and the deformation contro...

AI Technical Summary

Problems solved by technology

If the installation and fixing mechanism is not stable and reliable enough, the insert will be out of the original position when the film is laminated, which will cause the mold to be damaged

Moreover, it will also cause the ABS plastic melt to follow the axial runner to other positions of the mold, making the work impossible, and the operator must write down the mold to clean it up.

This not only affects the production and processing work, but also seriously reduces the quality of the product

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