Preparation method of circular-section steel wire ring for radial tire

Abstract

The invention discloses a preparation method of a circular-section steel wire ring for a radial tire. According to the preparation method, a steel wire ring with a circular section is formed by winding a single attached steel wire on a concave semicircular tile of a steel wire ring winding disc on a steel wire winding device, in the winding process, the coiling of steel wires, the horizontal wire arrangement among the steel wires, the up and down wire tripping among the steel wires and the total winding amount of the steel wires are respectively controlled by servo systems correspondingly arranged on the steel wire winding device, all the servo systems are connected with a PLC (Programmable Logic Controller) through lines, thus realizing the automatic control; a circular-section steel wire ring production line is composed of the steel wire winding device and a steel wire unwinding device, as well as a cloth roller wire cleaning device, a preheating device, an extruder, a traction, storage and cooling device, a prebending device and a steel ring wrapped winding device. According to the preparation method, the coiling, wire discharge, wire tripping and winding amount of the steel wires are controlled by the servo systems with set parameters, and the preparation method has the characteristics of being precise for materials to take, close to wind, uniform for intervals, and stable for circular-section shape.

Description

(1) Technical field: [0001] The invention relates to tire manufacturing technology, in particular to a method for preparing a circular cross-section steel traveler for a radial tire. (2) Background technology: [0002] Radial tires are usually composed of a carcass layer, a belt layer, a steel ring and rubber, among which the carcass layer, belt layer and steel ring are the skeleton materials of the tire, which bear most of the stress on the pneumatic tire, including the carcass Internal pressure stress and pavement impact stress. [0003] In radial tires, the carcass layer is turned upside down at the position of the bead to fix the size of the tire and buffer the impact stress; the bead makes the tire tightly fixed on the rim and bears various interaction forces between the rim and the tire. [0004] The bead ring of the radial tire is easily damaged due to the large stress and radial deformation. In the prior art, the structural design of the traveler with a hexagonal c...

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Problems solved by technology

[0004] The bead ring of the radial tire is easily damaged due to the large stress and radial deformation

In the prior art, the structural design of the traveler with a hexagonal cross-section is usually adopted, but the contact surface between the hexagonal cross-section traveler and the turn-up carcass layer is only a few points, and the carcass layer and the traveler will have relative contact during tire movement. Displacement friction, at this time, the force on each position of the traveler is extremely uneven, which may easily lead to abnormal friction heat generation and fatigue damage of the carcass layer or traveler

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