CN105691110A - Radial tire with steel wire cord winding structure - Google Patents

Abstract

The invention discloses a radial tire with a steel cord winding structure. The cord layer and the belt layer of the carcass part are respectively formed by continuous winding of a glued steel cord. The ply of the carcass part adopts a rubber-coated steel cord to be wound orderly along a pair of beads to form a cylindrical steel ply. The belt layer includes 1#, 2# and 3# belt layers, and each belt layer adopts a rubberized steel cord to be sequentially and continuously wound along the circumferential direction of the carcass inflated to the final size Add a layer of lagging to form 1#, 2# and 3# belt layers respectively. A radial tire with a steel cord winding structure disclosed by the present invention does not need forming equipment such as a steel cord calender, a steel cord cutting machine, a splicing machine, etc., which simplifies the forming process and improves tire production efficiency. The problem of numerous steel wire joints in the tire manufacturing process is solved, and the tire molding quality is improved. Extended tire life.

Description

A radial tire with steel cord winding structure

technical field

The invention relates to a radial tire, in particular to a radial tire with a steel cord winding structure.

Background technique

At present, the carcass and belt layer of all-steel radial truck tires generally use steel cord fabrics formed by calendering, cutting and bonding of steel wire and rubber.

Chinese patent CN201345301 reduces the wear of the cord by changing the cross-sectional shape of the traveler, thereby improving the load-carrying capacity and performance of the tire. However, this method still requires cord turn-up and lapping of steel wire joints; Chinese patent CN204236145 adopts a variable angle The design of the belt layer and the use of enhanced tackifying film to increase the rigidity of the tire crown, improve corrosion resistance, thereby increasing the service life of the tire, but the angle of the belt layer is not easy to control, and increases the complexity of the manufacturing process; Chinese patent CN203957737 is improved The width structure of the conventional 4-layer belt layer can improve the rigidity distribution of the crown, improve the ground contact performance of the tire, and ensure wear, but the width accuracy of the belt layer is not easy to guarantee during the tire manufacturing process, and the process and equipment are complicated; A zero-degree belt layer structure, and fiber cords are added between the first layer and the second belt layer to improve the shear resistance of the tire, delay the damage of the shoulder part, and prolong the service life, but the tire is in the manufacturing process The lap joint of the wire joint is still required in the

At present, during the manufacture of all-steel radial truck tires, it is easy to cause too many cord joints, wrong side joints, cord bending, carcass cord seams, carcass cord thin lines, carcass cord overlapping and crossing, carcass cord Quality defects such as end breakage, carcass cord turn-up too high or too low, belt center deviation, belt cord overlapping or splitting, etc.

Contents of the invention

The purpose of the present invention is to overcome the deficiencies of the prior art and provide a radial tire with a unique structure that solves the problems of many cord wire joints, cumbersome process flow, and complicated manufacturing equipment.

A radial tire with a steel cord winding structure to achieve the object of the present invention includes a carcass and a belt layer, and is characterized in that a carcass ply is arranged inside the carcass, and only one hanging ply is used for the carcass ply. Rubber steel cords are reciprocally and orderly wound around a pair of beads of the tire, the distance between the cords is adjustable, and finally a completely closed cylindrical steel cord layer is formed to form a carcass. The belt layers include 1# belt layer, 2# belt layer and 3# belt layer. The 1# belt layer is made of a rubber-coated steel cord orderly wound along the circumferential direction of the raised carcass, and a layer of rubber is pasted on the outer surface along the circumferential direction; the 2# belt layer The outer layer of the 1# belt layer is made of a rubber-coated steel wire cord wound in an orderly manner in the outer circumferential direction of the rubber covering of the 1# belt layer, and a layer of rubber covering is attached along the outer surface of the 2# belt layer in the circumferential direction; the 3# belt The bundle layer is made by winding a rubber-coated steel cord in the outer circumferential direction of the 2# belt layer in an orderly manner, and a layer of rubber is pasted along the outer surface of the 3# belt layer.

The beneficial effects of the present invention are as follows: a radial tire with a steel cord winding structure of the present invention does not use the cord formed by rolling the steel wire and the rubber layer, and the cord needs subsequent cutting and bonding, and then passes through the Laying together to form the carcass and belt layer, but using a rubber-coated steel cord directly around a pair of bead beads of the tire to reciprocate and orderly wind to form a closed cylindrical steel cord as the carcass. A rubber-coated steel cord is directly wound along the circumference of the carcass that has been inflated to a fixed size in an orderly manner to form 1#, 2# and 3# belt layers, thereby greatly reducing the number of steel wire joints and improving the tire quality. Uniformity, significantly reducing stress concentration and maximum circumferential stress, improving tire service life. And compared with the traditional radial tire building equipment, the manufacturing process is simplified and the forming manufacturing equipment is reduced. The production of the carcass layer and the belt layer does not require equipment such as steel cord calenders, steel cord cutting and jointing machines, and eliminates the need for tire tires. The turn-up lapping of the carcass cord during the molding process greatly reduces the tire manufacturing cost.

Description of drawings

Accompanying drawing 1 is the sectional structure schematic diagram of the present invention;

Accompanying drawing 2 is the carcass schematic diagram of uplift after the steel cord of the present invention is wound;

Accompanying drawing 3 is the 1# belt schematic diagram that steel cord of the present invention is wound;

Accompanying drawing 4 is the 2# belt schematic diagram that steel cord of the present invention is wound;

Accompanying drawing 5 is the schematic diagram of the 3# belt layer wrapped with the steel cord of the present invention.

In the figure, 1. bead; 2. carcass ply; 3. carcass; 4.1# belt; 5.1# lagging; 6.2# belt 6; 7.2# wrapping; 8.3# belt 8; 9.3# lagging.

detailed description

The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings, and the examples provided are only used to explain the present invention, and are not intended to limit the scope of the present invention.

Examples of the present invention are as follows: As shown in Figure 1, a radial tire of a steel cord winding structure of the present invention includes a carcass and a belt layer, and a carcass ply 2 is arranged in the carcass, and the carcass ply The layer is between a pair of beads 1 of the tire, and a rubber-coated steel cord is used to reciprocate and orderly wind around the pair of beads of the tire from beginning to end, finally forming a completely closed cylindrical steel cord layer 2, forming a tire Body 3. The belt layers include 1# belt layer 4, 2# belt layer 6 and 3# belt layer 8. The 1# belt layer 4 is formed by orderly winding a rubber-coated steel cord along the circumferential direction of the raised carcass, and a layer of 1# rubber wrapping 5 is pasted on the outer surface along the circumferential direction; 2# belt layer 6 is made by winding a rubber-coated steel cord along the outer circumferential direction of 1# rubber coating 5, and a layer of 2# rubber coating is attached to the outer surface of 2# belt layer 6 in the circumferential direction 7. The 3# belt layer 8 is made of a rubber-coated steel wire cord wound in an orderly manner on the outside of the 2# rubber wrap 7, and a layer of 3# is pasted on the outer surface of the 3# belt layer 8. Lagging 9.

The above descriptions are not intended to limit the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present invention shall also belong to the scope of the present invention. protected range.

Claims (4)

1. A radial tire with a steel cord winding structure, characterized in that: the ply of the carcass part and the ply of the belt part of the tire are respectively made by continuous winding of a rubberized steel cord. 2. The radial tire with steel cord winding structure according to claim 1, characterized in that: the carcass ply adopts a rubberized steel cord to reciprocate and orderly continuously wind along a pair of beads of the tire , and finally form a completely closed cylindrical steel wire ply to form the carcass. 3. The radial tire with steel cord winding structure according to claim 1, characterized in that: said belt layers include 1# belt layer, 2# belt layer and 3# belt layer. The 1# belt layer is made by sequentially winding a rubberized steel cord along the circumferential direction of the raised carcass, and a layer of rubber coating is applied on the outer surface along the circumferential direction; the 2# belt layer The bundle layer is made by winding a rubber-coated steel cord in the outer circumferential direction of the 1# belt layer in an orderly manner, and a layer of rubber is attached along the outer surface of the 2# belt layer in the circumferential direction; the 3# The belt layer is made of a rubber-coated steel cord wound in an orderly circumferential direction on the outer side of the 2# belt layer, and a layer of rubber is pasted along the outer surface of the 3# belt layer. 4. The radial tire with steel cord winding structure according to claim 1, 2, 3, characterized in that: the thickness of the steel cords is optional, and the arrangement spacing is adjustable.