Cross double-channel lens barrel mold structure and forming method thereof

Abstract

The invention belongs to the technical field of lens cone molds, and particularly relates to a cross-shaped double-flow-channel lens cone mold structure which comprises a base, a lower mold plate is arranged at the top of the base, two fixing plates are fixedly connected to the two sides of the lower mold plate correspondingly, sliding rods are inserted into the fixing plates in a sliding and penetrating mode, and the sliding rods are fixedly connected with the base. The part, located at the bottom of the fixing plate, of the sliding rod is sleeved with a first spring, and a containing groove is formed in the bottom of the lower die plate. In the injection molding process, after injection molding glue enters the glue inlet pipe, due to the fact that the distances from the main injection molding pipe to the branch pipes are the same, the time and pressure of the injection molding glue entering all the first annular pipes are the same, and therefore the consistency of products can be conveniently improved; and then the injection molding glue entering the first annular pipe simultaneously enters the second annular pipe through the two symmetrical connecting pipes located on the outer side of the second annular pipe, so that compared with a traditional injection mold arranged in a straight line, the injection molding efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of lens barrel molds, and particularly relates to a cross-shaped double-flow channel lens barrel mold structure. Background technique [0002] The mobile phone lens barrel is one of the components of the mobile phone lens. It is mainly manufactured by injection molding. When the mobile phone lens barrel is injected, an injection mold is required, and the existing mold structure is mostly eight-hole and one-shaped. The advantage of this structure is that the structure is relatively compact and the material is saved. However, due to the difference in the distance from each hole to the glue inlet, the glue feeding time and glue feeding pressure of each hole are different, which leads to The consistency of the product is not good. [0003] In addition, during injection molding, since the mold needs to be placed between the upper and lower mold plates for heat preservation and fixation, the mold plate at the top...

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Problems solved by technology

[0002] The mobile phone lens barrel is one of the components of the mobile phone lens. It is mainly manufactured by injection molding. When injecting the mobile phone lens barrel, an injection mold is needed, and the existing mold structure is mostly eight holes and one font. Arrangement, the advantage of this structure is that the structure is relatively compact and the material is relatively saved, but due to the difference in the distance from each hole to the glue inlet, this leads to the difference in the glue feeding time and glue feeding pressure of each hole, which leads to Product consistency is not good

[0003] In addition, during injection molding, since the mold needs to be placed between the upper and lower templates for thermal insulation and fixing, and the template at the top is mostly lifted by a hydraulic structure, when the pressure of the hydraulic structure is insufficient, the upper and lower templates cannot perform a good job on the mold. The fixation of the mold will cause the deviation of the mold during injection molding, which will affect the injection quality of the product

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