SU891480A1 - Apparatus for applying tread band - Google Patents

Description

(54) DEVICE FOR TAPE PROTECTOR IMPOSITION

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The invention relates to equipment for the tire and tire repair industry and is intended to apply a tread by winding a narrow tape on a toroidal tire carcass.

A device for applying a tread by winding a narrow tape is known, which comprises a stand-up head for winding the tape moving along the profile of the tire. The head has guide, feed and press rolls 1.

The disadvantage of the device is that the feed roller is placed below the level of the press roller, which prevents mechanization of the feeding and gluing of the end of the tape at the beginning of the process and breaking it at the end. These operations must be done manually. The carcass of a tire, especially a large one, may have a different thickness, i.e. the distance between the surface of the tire and the feed roller may vary. The adjustment of the position of the feed roller depending on the thickness of the frame is not provided; therefore, a uniform step of winding is not provided. When applying a tread on large tires (tread thickness reaches 160-170 mm), the tape is wound in several layers. In this case, adjustment of the head position for each layer is necessary.

The closest to the proposed technical essence and the achieved result is a device for applying a protector with a ribbon, which contains a head mounted on a rack for winding the ribbon with a drive for its reciprocating movement, mounted in the head housing a spring-loaded 10 roller roll, a feed roller with a brake and a spring-loaded pressure roller 2

In the known device, the feed roller is mounted above the stitching roll and the tape is held thereon with a spring-loaded pressure roll permanently. At the beginning of the winding, the end of the tape hangs down on a stitching roller, which sticks it to the tire when leading the head to it.

However, the feed roller flange in the device is made in the form of a ratchet wheel, which does not ensure complete deceleration of the roller and does not allow mechanized breakage of the tape after winding. In addition, when

putting the protector by winding the tape in several layers, the worker needs to adjust the position of the head for each layer, which is impossible when winding each layer depending on the thickness of the tire carcass on a known device, therefore it does not provide the specified step of winding.

The aim of the invention is to provide mechanized tearing of the ribbon after it has been applied and to improve the operating conditions of the device.

The goal is achieved in that the device for applying a tread with a ribbon, comprising a head mounted on a stand for winding a tape with a drive of its reciprocating movement, mounted in the head body a spring-loaded pick roller, a feed roller with brake and spring-loaded pressure roller are fitted with a head mounted a vertical arm with a double-arm lever and a longitudinal axle, and a pressure roller mounted on one arm of a two-arm arm, the other arm of which It is associated with a rotational drive of the two shoulders fixed in the housing of the head, with the axis of rotation of the two shoulders of the lever mounted on movable rails that are mounted on a longitudinal rod.

The feed roller brake is made in the form of a spring-loaded plate mounted on a rack.

The device is equipped with longitudinally mounted stops to limit the movement of the movable rails.

FIG. 1 shows the device, a general view; in fig. 2 - the same, in the position of the winding tape; in fig. 3 - position of the rollers relative to the tire when winding the first layer; in fig. 4 - the same, when winding the second layer.

The device contains a rack 1, on which the head for winding the ribbon with the drive 2 of its reciprocating movement is installed, the spring-loaded stitching roller 4 installed in the body 3, the feed roller 5 with brake 6 and the spring-loaded spring 7 pressure roller 8. In the case 3 the rotary in the vertical plane, two shoulders lever 9 and longitudinal bar 10. The pressure roller 8 is mounted on one shoulder of the two shoulders lever 9, the other shoulder is connected with the drive 11 of the turn of the double arm. The axis 12 of turning the two arms 9 is mounted on the movable guides 13, which are mounted on the longitudinal bar 10. The longitudinal bar has stops 14 and 15 for limiting the movement of the movable guides 13. The stop 14 is adapted to adjust its position. The brake 6 is made in the form of a spring-loaded spring 16 of the plate, which is installed between the stops 17. A stop 18 is mounted on the rod of the drive II, and the two-armed lever 9 has a stop 19.

The device works as follows.

5 In the initial position, the head is moved away from the tire 20, the feed roller 5 is braked by brake b, the spring 16 is compressed. Adjustable stop 14 is fixed in the desired position on the longitudinal rod 10,

0 setting the required distance from between the centers of the feed 5 and the pressure 8 rollers. The ribbon 21 is sandwiched between the feed 5 and the pressure roller 8, the end of the ribbon is on the press roller 4.

Drive 2 moves the head to

5 to tire 20. Prikatochnyy roller 5 glues the end of the tape 21 to the tire 20. Then the actuator 11 double-arm lever 9 rotates around the axis 12 until it stops 19 and moves along the longitudinal bar 10 until it stops 14. At the same time, the pressure roller 8 moves forward and abuts the tire 20 A distance is established between the centers of the rollers 5 and 8. The tire 20 is rotated, the ribbon 21 is applied to the tire at a tangent N.

5 In the case of changing the thickness of the frame of the liner, as well as when the subsequent layers are being chased, the pressure roller 8 through the double-arm lever 9, the drive 11 and the body 3 of the head acts on the drive 2, causing movement of the head | And ensuring a constant distance between the tire 20 and the feed roller 5 .

After winding is finished, the head is removed from the tire by drive 2, feed roller 5 by brake 6, double-arm lever 9 all, rotates around axis 12, and roller 8 presses tape 21 to feed roller 5. Spring 7 regulates pressure force of roller 8 on tape 21. Head 2 retracted from the tire, the feed roller 5 is braked by the brake 6. The tire

Q is turned one turn and the ribbon is cut off.

The use of the proposed device in comparison with the known one makes it possible to improve the quality of the winding of the tape and improve the conditions of service of the device. By maintaining a constant distance between the feed roller and the surface of the tire during the winding process, a predetermined twist bar is provided, and at the end of the winding, an automatic break is provided.

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Claims (3)

1. A device for applying a protector with a ribbon containing a head mounted on a stand for winding a ribbon with a drive of its reciprocating movement mounted in the head housing spring loaded roller, feed roller with brake and spring loaded pressure roller, characterized in that, in order to ensure mechanized tearing of the ribbon after it has been applied and to improve the operating conditions of the device, it is equipped with a double-arm lever and a longitudinal barbell mounted in the head housing, The pressure roller is mounted on one shoulder of a two-armed lever, the other shoulder of which is connected with a rotational drive of the two-armed lever fixed in the housing of the head, the axis being the gates of the two shoulders of the lever are mounted on movable tracks, which are mounted on a longitudinal rod. 2. A device according to claim 1, characterized in that the brake of the feed roller is made in the form of a spring-loaded plate mounted on a rack. 3. The device according to claim 1, characterized in that it is equipped with stops mounted on the longitudinal rod to limit the mixing of the moving directions. Sources of information taken into account in the examination 1. US patent number 3539415, CL. 156-397, published. 1970. 2. USSR author's certificate No. 422632, cl. In 29 N 17/37, 1970 (prototype). "D 2 Figg Phage.