Inner mold of tire direct pressure vulcanizing machine

Abstract

The invention relates to an inner mould of a tire vertical compression vulcanizing machine and belongs to the field of tire production equipment, A narrow drum tile is respectively connected with one end of a narrow tile upper connection rod and one end of a narrow tile lower connection rod through hinging supports; the other end of the narrow tile upper connection rod and the other end of other narrow tile lower connection rod are respectively hinged with shaft end support rings and the hinging supports; one end of a narrow tile short connection rod is hinged with the central part of the narrow tile lower connection rod and the other end of the narrow tile short connection rod is hinged with a hinging support on the base; a wide drum tile is respectively connected with one end of a wide tile upper connection rod and one end of a wide tile lower connection rod through hinging supports; the other end of the wide tile upper connection rod and the other end of the wide tile lower connection rod are connected with a hinging support fixed on an outer shaft sleeve; one section of a wide tile short connection rod is hinged with the central part of the wide tile lower connection rod and the other end of the wide tile short connection rod is connected with the hinging support fixed on the base; the base, the inner shaft sleeve and the shaft end support rings are sleeved on a piston rod of a central mechanism; a positioning pin is used for fixing the shaft end support rings on the upper end of the inner shaft sleeve; the inner shaft sleeve is fixed on the piston rod through a clamping ring and a connection bolt; the outer shaft sleeve is provided with a certain quantity of guide grooves which are uniformly distributed in a peripheral direction; and a hinging support on the inner shaft sleeve is located in the guide grooves.

Description

technical field [0001] The invention relates to the field of tire production equipment, in particular to an inner mold of a tire direct pressure vulcanizer. Background technique [0002] As we all know, vulcanization is a key process in tire manufacturing. In this process, the bladder and the outer mold jointly apply high-intensity vulcanization pressure to the green tire, and transfer heat to the green tire by means of high-temperature steam (or superheated water) , Under the action of this high heat pressure, a chemical crosslinking reaction occurs between the rubber material inside the green tire and the vulcanizing agent, and finally endows the finished tire with an exquisite pattern appearance and good mechanical properties. Compared with the early water tire vulcanization, the bladder vulcanization form is widely used due to its high heat transfer efficiency, but the existing bladder vulcanization process still has certain defects. Unreasonable reasons such as incompl...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to aim at the defects in the existing tire vulcanization process, provide an inner mold of a tire direct pressure vulcanizer, replace the vulcanization bladder on the central mechanism of the vulcanizer, and fundamentally overcome the incomplete expansion of the bladder in the original process, the structure asymmetry etc.

Compared with the bladder vulcanization method, the vulcanization pressure provided by the tire direct pressure vulcanization method in the present invention can be increased by 30% to 40%, effectively improving the distribution of the rubber material in the molten state, thereby significantly improving the uniformity and dynamic balance performance of the finished tire , and the structure of the inner mold used is stable, without frequent replacement, it can be used for the vulcanization of tires for a long time, which solves the problem of high cost of bladder use

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