Turn-down and turn-up device of full-steel giant tire building machine

Abstract

The invention relates to a turn-down and turn-up device of a full-steel giant tire building machine. The device comprises a main shaft, a machine seat used for supporting the main shaft, a building drum arranged on the main shaft in a sleeve mode, a turn-down finger mechanism and a bladder turn-up mechanism, the turn-down and turn-up device comprises an outer sleeve mechanism and an inner sleeve mechanism, and buckle rings are arranged at the front ends of the sleeve mechanisms, the turn-down and turn-up device is characterized in that a pushing and pressing triangular rubber mechanism which can axially slide on the outer sleeve mechanism under driving of an air cylinder is arranged on the sleeve mechanism, a plurality of rubber pressing connecting rods are distributed in the peripheral direction of a support of the pushing and pressing triangular rubber mechanism, rubber pressing rollers are hinged to the front ends of the rubber pressing connecting rods and are used for rolling apexes, a pushing and pressing bladder mechanism is further arranged on the periphery of the sleeve mechanism, and a turn-up ejector rod capable of axially sliding along with the outer sleeve mechanism isarranged on the pushing and pressing bladder mechanism, and is used for pushing and pressing a turn-up bladder to be turned up in place when the turn-up bladder of the bladder turn-up mechanism is expanded. The device has the advantages that the product quality is improved, the automation degree is high, and the using effect is good.

Description

technical field [0001] The invention relates to a rubber wheel swelling machine, in particular to a front and back wrapping device in the production process of all-steel giant tires. Background technique [0002] All-steel giant tires are different from ordinary bias tires in terms of technological requirements, and the materials for wrapping are also different, with higher requirements and more complex. For all-steel tire building machines, especially in the production process of giant tires, due to the huge size of the tires produced, the large drum diameter and high drum shoulder of the building drum, it is not easy to turn the capsule; the steel ring is large, with a width of 50~60mm, or even What's more, the original front and back packaging device can't push the apex into place, which can't meet the process requirements, and the pressure roller is not in place and the glue is not reliable. Contents of the invention [0003] The object of the present invention is to ...

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Problems solved by technology

[0002] All-steel giant tires are different from ordinary bias tires in terms of technological requirements, and the materials for wrapping are also different. The requirements are higher and more complicated.

For all-steel tire building machines, especially in the production process of giant tires, due to the huge size of the tires produced, the large d

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