A rubber hose vulcanization mold core and its mold

Abstract

The present invention discloses a rubber pipe vulcanization mold core and a rubber pipe vulcanization mold, and relates to the technical field of molds. The rubber pipe vulcanization mold core comprises a fixation portion and a molding portion, wherein the fixation portion and the molding portion are connected and fixed, a ventilation hole is arranged inside the mold core along an axial line position, the ventilation hole part positioned on the fixation portion is a blind hole, the ventilation hole part positioned on the molding portion is a through hole, at least a gas inlet hole is arranged on the fixation portion of the mold core, and the outer surface of the fixation portion and the ventilation hole are communicated through the gas inlet hole. The present invention further discloses a mold matched with the mold core, wherein the mold comprises the mold core and a mold sleeve, and the mold sleeve is sleeved on both ends of the mold core. With the rubber pipe vulcanization mold core and the rubber pipe vulcanization mold of the present invention, the problems of low product qualification rate, waste of labor and waste of materials of the existing rubber pipe vulcanization mold core production are solved.

Description

technical field [0001] The invention relates to the technical field of molds, in particular to a rubber hose vulcanization mold core and a mold thereof. Background technique [0002] In the traditional rubber hose production, the rubber material is first kneaded, and then the tube blank is extruded through the extruder, and then the mold core is used for vulcanization. The vulcanized rubber tube is cleaned, and finally the two ends are cut. [0003] The traditional rubber hose vulcanization mold core material adopts SUS304, 45# steel, etc., and there is no vent hole, which causes the following problems: [0004] Rust: the mold core needs to be chrome-plated, which increases processing time and cost; [0005] Scaling: After the mold core has been used for a period of time, some imperceptible scales will appear on the surface, resulting in defects such as scratches on the inner wall of the product. The mold core needs to be cleaned regularly, resulting in waste of resources; ...

AI Technical Summary

Problems solved by technology

[0005] Scaling: After the mold core has been used for a period of time, some imperceptible scale will appear on the surface, resulting in defects such as scratches on the inner wall of the product. The mold core needs to be cleaned regularly, resulting in waste of resources;

[0006] Quality and weight: The SUS304 and 45# steel materials used in traditional mold cores are relatively heavy, which causes laborious work for workers;

[0007] Slow heat dissipation: The SUS304 and 45# steel materials used in traditional mold cores have slow heat dissipation, and the products are easily scalded during the vulcanization process, resulting in a low pass rate

[0008] Moreover, the traditional rubber hose vulcanization mold core does not use a matching mold sleeve, so that the size of the product port needs to be guaranteed through the cutting process, which not only wastes excess material after cutting, increases product processing time and labor costs, but also causes product damage. risk

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