Trimming-free plastic die and correcting method for die

Abstract

A trimming-free plastic die comprises a cavity fixing plate and a core fixing plate which are matched. The cavity fixing plate is provided with a cavity. A core is arranged on the core fixing plate. Acore insert is arranged on the periphery of the core, and the periphery of the cavity is provided with an insert positioning face matched with the core insert. The part between the core insert and the insert positioning face is positioned through a protruding and concave structure. The trimming-free plastic die is provided, and the invention further releases to a correcting method for the die. The insert type structure is adopted, the cavity and the core can be positioned and subjected to finish machining, split machining can be conducted as well, the machining technology is more excellent, cost is low, and operation is convenient. After machining is finished, the cavity and the core can be arranged on corresponding matched components for correcting and polishing, installation is very convenient, assembling is simple, the structure is stable, abrasion is not likely to happen, and the service life is long; and the die is easy to maintain and adjust, and the die quality and the productquality are very stable.

Description

technical field [0001] The invention belongs to the field of mold processing, and in particular relates to a flash-free plastic mold, and at the same time, the invention also relates to a correction method of the mold. Background technique [0002] Molds are needed in the manufacturing process of plastic products, and for various plastic products, the corresponding mold structures are also varied. For the production of plastic products, the upper and lower molds have a forming appearance, the appearance of the product must be connected up and down, and the appearance of the plastic mold has a parting line. The fixed parts or moving parts need a stable positioning mechanism to solve the problem of up and down. Parts positioning accuracy and processing reliability issues. [0003] At present, the positioning mechanism in the plastic mold mentioned above only has one-way positioning at the fixed position or the sliding position, and the other part that is docked with it has no...

AI Technical Summary

Problems solved by technology

[0003] At present, the above-mentioned positioning mechanism in the plastic mold only has one-way positioning at the fixed position or the sliding position, and the other part connected to it has no positioning structure. The stability of the parting line is poor during the upper and lower molding, and it is easy to generate flash. Positioning can only be achieved by relying on the positioning accuracy of other mold parts such as guide posts. The error is large and the product rejection rate is high. With the wear of other parts, the gap becomes larger and larger, maintenance is difficult, and the quality of the mold is unstable.

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