SU998273A1 - Apparatus for centering rubberized cord web - Google Patents

Description

(54) DEVICE FOR CENTERING REDUCED CARDS

one

The invention relates to equipment for the production of tires and can be used in lines, workpieces made of rubberized cord when joining cut pieces of rubberized cord, rolling rubber bands and during tire assembly when applying rubberized cord to an assembly drum.

Closest to the invention according to the technical essence and the achieved result is a device for centering the cord, which contains an inflatable table and means for orienting the cord with two independent drives controlled by sensors of the position of the edges of the cord (.

A disadvantage of the known device is its slow operation.

The purpose of the invention is to increase the speed of the device.

For this purpose, in a device for centering rubberized cord; containing a blown table and a cord orientation tool with two independent drives controlled from cord edge position sensors, a cord orientation tool includes two elastic membranes forming the table working surface and mounted one after the other across the direction of movement of the rubberized cord; transverse deformation for Dani membranes of convex shape.

In addition, the device has tubes placed above the blown table along elastic membranes, connected to a source of compressed air and having a 10 to reach air outlet surface facing the table.

FIG. 1 shows the proposed device, a general view; in fig. 2 is a diagram of the device; in fig. 3 shows the membrane construction. Section A-A in FIG. four; in fig. four-

 drive membrane deformation; in fig. 5 is an enlarged node I in FIG. 3; in fig. 6 is an enlarged node II in FIG. four.

Claims (2)

 The rubberized cord 1 is placed on an inflatable table 2, into the surface of which elastic membranes 3 and 4 having symmetry axes SS and SS are mounted across the cord feed direction, and their boundaries on the surface of table 2 are indicated by dotted lines. A roller 5 is located above the surface of the blown-out table 2 perpendicular to the longitudinal axis of symmetry of the table 00, serving to feed code 1 along the table's surface along the axis 00. Both elastic membranes 3 and 4 are made of a rubber plate in which are mounted parallel axes of the CC metal pneumatic tubes 6 s openings 7 for the release of compressed air supplied to the inside of the pneumatic tubes. The stiffness of the pneumatic tubes 6 provides the required anisotropy of the properties of the membrane 3, i.e. when the membrane is deformed, its surface remains ruled. Membranes 3 and 4 are equipped with two independent deforming actuators, each of which contains an elastic metal plate 8 rigidly fixed at one end, and an air bellows 9, which expands when compressed air is fed into it and deform the membrane 3. The drive can also be made the form of a roll, relating to the axis of symmetry of the membrane when it is in the undeformed state, and provided at the ends with independent drives of its movement in the vertical direction. Along the boundaries of the membranes above the surface of the table 2 are located tubes 10 connected to a source of compressed air, having openings 11 facing the surface of the table 2 to allow air to escape and serve to limit the vertical movement of the cord. The position of the edges of the cord 1 is monitored by sensors 12-14. QC, MM - the lines coinciding with the edges of the rubberized cord 1. The device works as follows. The rubberized cord 1 (Fig. 2) with a roller 5 is fed to the surface of the table 2 to its original position (shown as a thin line), in which cord 1 closes the sensor 12, after which the membrane 4 is asymmetrically deformed until the edge of the MM is set exactly above sensor 14. Then the membrane 3 is asymmetrically deformed until the edge of the MM is installed above the sensor 13, and at the same time the membrane 4 is asymmetrically deformed in order to prevent the edge of the MM from moving away from the sensor 14. After the edge of the MM coincides with the sensors 13,14, QC edge is set Above the sensor 12 by reversing rotation of the roller 5 or the symmetric deformation of the membranes 3 and 4. The proposed device has a simple structure, does not contain complicated bulky open mechanisms used in known devices, and therefore has high reliability in operation, high speed and safety. Claim 1. A device for centering rubberized cord comprising an inflatable table and a cord orientation means with two independent drives controlled from a .J position sensor of cord edges, characterized in that, in order to improve speed, the cord orientation means includes two elastic membranes forming The working surface of the table and mounted one after another across the direction of movement of the rubberized cord, and the drives of the membrane include means of their transverse deformation to impart a membrane Anam convex shape. 2. The device according to claim 1, characterized in that it has tubes placed above the blown-up table along elastic membranes, connected to a source of compressed air and having air outlets facing the surface of the table. Sources of information taken into account during the examination 1. USSR Author's Certificate No. 388905, cl. In 29 N 17/28, 1971 (prototype). TO, m / J 12 / / Z o FIG. 2 Fig.Z Type B Fy // year FIG. 6