Pipe bending die

Abstract

The invention provides a pipe bending die. The pipe bending die comprises a die body, an insert assembly, a guide rod structure and a slide device, the die body is provided with a bent pipe cavity and a straight pipe cavity which are communicated with each other, and the straight pipe cavity is communicated with an opening of the bent pipe cavity; the insert assembly and the die body are movably arranged relatively, and the insert assembly is used for being contained in the pipe bending cavity. The guide rod structure is movably connected to the insert assembly, and at least part of the guide rod structure is contained in the straight pipe cavity and used for guiding the insert assembly into the bent pipe cavity when the guide rod structure is located at the guide position; the slide device comprises a main slide and an auxiliary slide which are relatively movably arranged, the main slide is arranged on the side, facing the mold body, of the auxiliary slide, the main slide is used for driving the insert assembly to move, and the auxiliary slide is used for driving the guide rod structure to move. According to the pipe bending mold, the guide rod structure is matched with the insert assembly, so that a product injection molding cavity with a straight pipe and bent pipe combined structure can be formed in one working procedure, and the pipe bending mold is high in machining efficiency, good in machining quality and convenient to use.

Description

technical field [0001] The invention relates to the technical field of molds, in particular to a pipe bending mold. Background technique [0002] In the existing injection molding process, the following processes are usually used to process the products with the combined structure of the curved pipe and the straight pipe: one is the first processing and then the molding process, firstly, the product is injected with a full straight pipe, and then the injected product is passed through Heating and forming a bent tube structure requires two processes, high cost, long cycle, and the product is prone to deformation during the heating and bending process, resulting in poor processing quality. The other is a combined process after separate processing. First, the elbow and the straight tube are injection-molded separately, and then the straight tube and the elbow are combined by hot-melting; this process also requires two processes, which has low processing efficiency and The hot-...

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