Insert falling preventing mechanism for plastic mold

Abstract

The invention belongs to the technical field of injection molding systems and provides an insert falling preventing mechanism for a plastic mold. The insert falling preventing mechanism comprises a female mold core, a female mold insert, a male mold core and a male mold insert. The female mold insert is installed under the female mold core. A metal injection molding insert and a product are arranged between the female mold insert and the male mold insert. A beryllium copper insert is installed in the male mold insert and comprises a main body part and a fixing head part. The product and the metal injection molding insert are located on the fixing head part together. The main body part is provided with a containing space. A magnet is arranged in the containing space. The magnet can transfermagnetism to the metal injection molding insert so that the metal injection molding insert can be adsorbed onto the heating head part. The insert falling preventing mechanism has the advantages thatduring injection molding production, the metal injection molding insert is installed in a male mold, under the effect of the magnet, in the closing process of the male mold, the metal injection molding insert is fixed to the mold, insert falling does not exist in the male mold, the overall scheme structure is stable, and the rejection rate of injection molding production is reduced.

Description

technical field [0001] The invention belongs to the technical field of injection molding systems, and in particular relates to a mechanism for preventing inserts from falling out of a plastic mold. Background technique [0002] The car luggage rack type product considers the operation of the luggage rack in the weighing state. The plastic positioning hole and the positioning column friction make the plastic hole position larger, resulting in abnormal noise when the car is running. Add inserts and use the structure of injection molded parts to wrap inserts. In general, insert injection molds can embed the inserts in the mold to realize the positioning of the mold and inserts, so as to avoid the movement of the inserts in injection molding production. The two sides of the inserts of this product are parallel to each other, and the injection mold The design cannot fix the insert in the mold, which cannot be achieved by using traditional fixed inserts. In addition, the insert is...

AI Technical Summary

Problems solved by technology

[0002] The car luggage rack type product considers the operation of the luggage rack in the weighing state. The plastic positioning hole and the positioning column friction make the plastic hole position larger, resulting in abnormal noise when the car is running. Add inserts and use the structure of injection molded parts to wrap inserts. In general, insert injection molds can embed the inserts in the mold to realize the positioning of the mold and inserts, so as to avoid the movement of the inserts in injection molding production. The two sides of the inserts of this product are parallel to each other, and the injection mold The design cannot fix the insert in the mold, which cannot be achieved with traditional fixed inserts. In addition, the insert is easy to fall when the insert is injection molded on the mold, resulting in defective products

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