SU1382663A1 - Arrangement for placing tread as a strip - Google Patents

Description

(21) 4072785 / 23-05

(22) 06/02/86

(46) 03/23/88. Bul № 11

(71) All-Union Research and Design Institute for Tire Industry

(72) V.V. Balashov, A.V.Silchenko and V.V.Antonov

,, 53) 678.057.94: 678.065 (088.8) 56) USSR Author's Certificate No. 766889, cl. In 29 D 30/58, 1978.

EPO Application No. 0055388, cl. In 29 N 17/02, 1982.

(54) DEVICE OF THE DAY OF THE IMPLEMENTATION OF THE PROTECTOR WITH A TAPE

(57) The invention relates to equipment of the tire and tire repair industry and is intended to apply a tread by winding a narrow tape over a tire carcass. The purpose of the invention is to improve the quality of a pneumatic tire tire manufactured by reducing air inclusions between the layers of the overlaid ribbon. To do this, a roller for puncturing a rubber ribbon is made of two sets of disks of different diameters, installed with alternation. Larger discs are made with a smooth working surface. The piercing needles are mounted on smaller diameter discs. 6 Il.

S

11382663

FIELD: equipment.

the tire and tire repair industry, and intended to apply the tread by winding a narrow tape over the tire carcass.

The purpose of the invention is to improve the quality of a pneumatic tire tire manufactured by reducing air inclusions between the layers of the overlaid ribbon.

Figure 1 shows the proposed device, a General view; figure 2 is the same during operation; in FIG. 3, view A in FIG. 1; in fig. And - section BB on figure 2; on fig.Z - section bb In figure 2; figure 6 - section T-f cha figure 2.

The device contains a rack 1 on which the head of a liter of winding of a rubber ribbon is mounted, connected with the drive of its movement. The drive of the head is made in the form of a pneumatic cylinder 2, which is pistons 3 and through lever 4 and. the levers 5 and 6 of the parallelogram pair are connected to the body 7 of the head. The pneumatic cylinder body 2 is mounted on the hinge 8 with the possibility of turning the curlers (not shown) through the carcass profile.

The head of the rubber strip winding includes a housing 7, in which a support 11 roller 10 is mounted on a helical rod 9.

On the rods 11, mounted in the housing 7 with the possibility of axial movement, the upper 12 and lower 13 stitching rollers with a smooth outer surface are mounted.

In the housing 7, a feed rod 15 is mounted on the rod of the pneumatic cylinder 14. Between the rollers 12 and 13 is mounted a roller 16 for puncturing a rubber band with piercing needles 17 located on its surface. Roles 16 are mounted on axially movable rods 18.

The rollers 12, 13 and 16 are spring-loaded using rubber cords 19, the tension of which is adjusted by screws 20. The roller 16 is made up of a set of disks of different diameters, installed alternating. The larger diameter discs 21 are made with a smooth working surface, and the piercing needles 17 are mounted on the smaller diameter discs 22. The needles 17 are located R intervals between the rollers 12. with a roller 13.

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The device works as follows.

In the initial position, the head is retracted from the frame 23, and the rubber ribbon 24 is freely twisted from the feed roller 15. Using the adjusting screws 20 of the screw rod 9, adjust the position of the support roller 10 with respect to the stitching rollers 12, 13 and 16, as well as the tension of rubber cords 19 to provide the required backup force.

The pneumatic cylinder 2 through the pistons 3 through the arms 4-6 brings the head to the frame 23. Then the roller 15 by pressing the pneumatic cylinder 14 presses the rubber band 24 to the frame and glues it, while the supporting roller 10, abutting the frame 23, determines the working position of the head .

Then, the roller 15 is retracted by the pneumatic cylinder 14 from the frame 23 and turns on the rotation of the drum with the frame 23 so that the rubber band 24, being wound on the frame, is rolled first by the roller rollers 12. At the same time, on the belt 24, non-rolled sections 25 are formed. the interaction of the tape with the rollers 16 disks 21 are mixed, are over the surface of the tape already dubbed by the rollers 16, and the needles 17 of the disks 22 pierce the non-rolled sections 25 of the tape 24, while the sections 25 do not roll as the diameter of the disks 22 of the roller 16 is smaller than the diameter of the disks 2 1.

Thereafter, the tape 24 is rolled by the rollers 13, the air from the tread is removed through the holes made by the needles 17. PILINDER 2 turns relative to the hinge 8, turning the head to wind the tread according to a predetermined program. After winding is finished, the head is retracted from the frame 23 by the pneumatic cylinder 2, the ribbon 24 is cut off, the process of applying the tread is completed, then the cycle repeats.

Claims (1)

Invention Formula A device for imposing a tread with a day strap, containing feed and G1 reeling rhodes and a roller for puncturing a rubber band with piercing needles located on its surface, characterized in that, in order to improve the quality of a pneumatic tire tire made by reducing air inclusions between the layers of the overlaid ribbon, the roller for puncturing the rubber ribbon is made up of two sets of disks of different diameters, alternated with alternating discs of larger diameter; a smooth work surface, and the piercing needles are mounted on the disc; - of smaller diameter. 23 2 ir- / IS Type A FIG. five Bb ig. Bb 25 Yr