A vulcanization mold for rubber tire manufacturing

Abstract

The invention relates to a vulcanization mold for manufacturing rubber tires, which comprises a base, a ventilation module and a compression module. A ventilation module is installed on the upper end of the base, and a compression module is connected to the side wall of the ventilation module. The ventilation module includes a ventilation pipe and an extrusion cylinder. , a supporting spring, a rebound spring and a rebound block, and the compression module includes a compression capsule, an extrusion rod, a compression plate and a guide plate. The invention adopts the flexible bladder and the rigid plate to double-press the inside of the tire blank, and can also drive the flexible bladder to squeeze the rigid plate intermittently during the vulcanization process, so as to achieve the purpose of improving the contact tightness between the tire blank and the rigid plate At the same time, the air bubbles between the two can be squeezed out, which avoids the lack of pressing force on the tire blank caused by the insufficient rigidity of the bladder in the existing vulcanization process, which in turn causes air bubbles in the tire or delamination of the inner liner.

Description

Technical field[0001]The present invention relates to the field of tire manufacturing, and in particular, to a rubber tire manufacturing vulcanization mold.Background technique[0002]Tire vulcanization refers to the vulcanization of the tires, which is vulcanized by model pressurization. It is featured that the outer diameter of the outer fetal belly is smaller than the inner diameter of the model, and the lifeline is contained in the lifeline, and the high-pressure hot water is applied to the water tire, and the expansion pressure of the tire or the capsule makes the outer fetal billet. Extracellulinization is a step-by-step temperature, low temperature long time vulcanization method, so that the rubber is fully flowing and heat, ensuring the quality of vulcanization.[0003]There are two kinds of tire vulcanization equipment: one is vertical vulcanization, one can be installed with different specifications of different specifications, the disadvantage is that there are many handking,...

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Problems solved by technology

[0004] The above two vulcanization equipments have different advantages and disadvantages, but there are some problems in the vulcanization process: the inside of the tire is compacted and shaped by a bladder with a high-temperature medium. Since the material of the bladder is relatively soft, the compression force exerted on the tire is affected. The tightness between the tire and the bladder cannot be guaranteed, resulting in defects of air bubbles in the tire or delamination of the inner liner. Therefore, after the vulcanization is completed, the tire needs to be trimmed, which increases the workload and affects the production efficiency.

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