Rubber pad independent of base mold and preparing method of rubber pad

Abstract

The invention discloses a rubber pad independent of a base mold and a preparing method of the rubber pad. Filling rubber is fixedly poured in a rubber containing cavity of an isostatic mold core. The rubber pad is an elastic geometric pad body provided with a closed cavity in which liquid substances are injected. According to the rubber pad independent of the base mold and the preparing method of the rubber pad, the liquid substance injection volume of the closed cavity, containing the liquid substances, of the rubber pad is related to the size of the closed cavity, and the pressure of liquid substance injection can be controlled; and adjustability is achieved, and it is ensured that the punching mold pressure equalizing function can be achieved. The rubber pad can be prepared in advance, and the characteristic of batched production is achieved. Elastic geometric pad bodies with different elastic deformation degrees can be prefabricated outside and are used in cooperation of the mold core according to the need of the operation pressure, using is convenient, and replacing is fast.

Description

technical field [0001] The invention relates to the field of isostatic pressing molds, in particular to a rubber pad independent of a base body and a preparation method thereof. Background technique [0002] At present, the isostatic molds on the market, especially the isostatic mold cores for ceramic tiles, are all hydraulic molds. Due to the characteristics of flow and penetration of liquid hydraulic oil, hydraulic systems generally have inherent defects of easy leakage and resulting pressure loss or product contamination. The technical structure and production points of conventional ceramic tile equalizing (or isostatic pressing) punching dies: Mill a pouring concave surface on the surface of the steel base mold body; carve out glue-fixing grooves or drill holes in the pouring concave surface ( figure 1 ); or pre-set a piece of isolation board (such as steel plate, plastic board, etc.) with a solid glue groove ( figure 2 ); Pour the elastomer liquid glue into the pouri...

AI Technical Summary

Problems solved by technology

The production and processing workload is heavy, and the refurbishment and maintenance process is complicated

[0003] Technical defects of conventional tile equalizing (or isostatic pressing) punching dies: the production process is complex and time-consuming; the technical requirements for manual operation are high; the rework rate of defective products is high; the consumption of materials and power is large; Bulging affects product quality; during use, due to the lack of adhesion between the steel base and the rubber layer, the elastomer rubber surface is easy to bulge and leak oil, and the service life is short; due to the leakage of oil circuit connectors and seals, mold The isostatic pressure effect is lost due to the loss of body pressure; due to the limited volume of the 'small oil chamber', the amount of oil filled is very small (about 0.1-0.2mm in height), resulting in an extremely unsatisfactory equalization (or isostatic pressure) effect

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