Aviation radial tire body barrel molding device and tire body drum molding process

Abstract

The invention provides an aviation radial tire body barrel molding device which includes a main shaft and a tire body drum. The main shaft is externally connected with driving force to do rotational movement; the tire body drum is installed on the main shaft and is rotated synchronously together with the main shaft, a tire body cord fabric of a tire body barrel is attached to the outer surface ofthe end, far away from the main shaft, of the tire body drum, and the two sides of the tire body drum are provided with a first reversed wrapping unit and a second reversed wrapping unit correspondingly; the first reversed wrapping unit or second reversed wrapping unit includes a reversed wrapping airbag for supporting the tire body cord fabric and a moving assembly, the reversed wrapping airbag is arranged between the moving assembly and the tire body drum, and the moving assembly is arranged on the main shaft and does rectilinear motion to synchronously get close to or be far away from the tire body drum along with rotation of the main shaft; and when the tire body drum is inflated and swells, the tire body cord fabric is hooped and pressed to be in a right angle shape through a compression assembly along the radial ends of the tire body drum, a tire bead is reversely wrapped into the tire body cord fabric through a boosting piece when the reversed wrapping airbag is inflated and swells, the problem about rubber folding at the root of the tire bead of the aviation radial tire body barrel is solved, and automatic molding of the tire body barrel is realized.

Description

technical field [0001] The invention relates to the technical field of aviation manufacturing, in particular to a carcass tube forming device and a carcass tube forming process for aviation radial tires. Background technique [0002] The carcass tube forming method of the existing aviation bias tire is that the carcass cord is expanded to be larger than the diameter of the bead to fit the carcass drum, and the carcass cord material on both sides of the carcass drum is shrunk by the wrapping device to be smaller than the diameter of the bead. , the bead is put on the buckle ring, and the turn-up capsule is inflated to complete the turn-up process. [0003] Since the angle of the carcass cord of the aviation radial tire is small relative to the cord of the aviation bias tire (the angle between the carcass cord of the aviation radial tire and the axis of the carcass drum is 3 to 5 degrees), the number of bonding layers is large (one-time bonding) Generally, 6 to 8 layers of in...

AI Technical Summary

Problems solved by technology

[0005] In view of the defects in the prior art, the present invention provides a carcass tube forming device and a carcass tube forming process for aviation radial tires, which solves the problem of rubber pleating at the bead root of the carcass tube of aviation radial tires and realizes the carcass tube automatic forming

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