RU1803331C - Device for assembly of endless cable-reinforced belts - Google Patents

Description

FIELD OF THE INVENTION This invention relates to the production of rubber products, in particular double-sided gear drive belts.

The purpose of the invention is to expand the technological capabilities of the device by making it possible to assemble double-sided toothed rubber bands with different tooth pitch on both sides.

Figure 1 schematically depicts an apparatus for assembling endless rubber bands; figure 2 - gearbox; in Fig. 3 - thread guide: in Fig. 4 - profile of the assembled rubber bands,. ".....

A device for assembling endless ryo-. zinotrosovy tapes contains an endless sleeve-roller chain 1, the envelope of the drive and tension rolls, which are made in the form of sprockets 2, and a clip 4. kinematically connected to the shaft 3 of the drive roll. axis roll.

The yarn guide 6 is mounted in a ferrule 4 with an eccentricity and is parallel to its generatrix. The device is equipped with an additional clip 7 mounted on the carriage 5 of a parallel to the existing clip 4, The clips 4 and 7 are kinematically connected to each other by means of gear racks 8 and 9, respectively, mounted on their side surface, and a gearbox 10 mounted on the carriage 5.

The carriage 5 is moved along the guides 11 of the base by means of a lead screw 12 kinematically connected to the shaft 13 and parallel to the latter. The shaft 13 is connected by means of a gear transmission. 14 is connected to the drive shaft 15. The shaft 3 of the drive roll is kinematically connected via the gear 16 to the latter. The rotation drive of the cage 4 is made in the form of a gear pulley 17 fixed thereon, mounted on the shaft 13 of the pulley 18 and a gear belt 19,

The braked bobbin holders 20 and 21 are fixed to the carriage. The yoke 7 has a yarn guide 22 located with an eccentricity relative to its rotation axis and parallel to its generatrix. The yarn guide 22 of the yoke 7 is mounted so that it is possible to vary the eccentricity value by means of bushings 23 inserted into the curly notches 24 of the yoke 7.

Forks 25 with rods 26 are rigidly fixed to the bushings of chain 1 to install gummed bushings 27, which are transverse reinforcement of the assembled rubber cable. The rotation of the shafts and screw is carried out by an electric motor 28,

The device operates as follows.

Gummed bushings 27 are mounted on the rods 26 and fixed in the axial direction. After turning on the drive 28, the shaft 3 starts to rotate the sprocket 2 and through the gear-belt drive 14

rotation of the shaft 13. From the latter, through the belt drive 17,18 and 19, the yoke 4 is rotated. From the latter, through the gears 8 and 9 and the gearbox 10, the additional

5 of the clip 7. In this case, the clips 4 and 7 rotate in different directions. At the same time, the carriage 5 is moved by a lead screw 12; along the guides 11. t The sleeve-roller chain is attracted by an asterisk 2, m yarn feeders 6 and 22 perform planetary motion relative to the rods 26, sequentially wrapped with ropes 29 and 30 of the sleeve 27 with a predetermined step determined by the amount of movement of the carriage 5 per revolution sprockets 2. After laying on the bushings 27 a predetermined number of rows of cable, the winding ends, the assembled core of the tape is covered with an elastomer, removed from the rods 26 and

0 is for vulcanization.

To prevent collisions at the same rotational speed of the cages 4 and 7, the yarn guides 6 and 22 are installed with radial clearances or with circumferential clearances (achieved when assembling the cages and carriage by relative rotation of the cages by a certain angle).

The implementation in the device of kinematic communication of the clips 4 and 7 by means of gears 8 and 9 fixed to their lateral surface and the gearbox 10, as well as the possibility of changing the amount of eccentricity in the clip 7, achieved by moving the yarn guide 22 relative to

5 shaped cutout 24 in the holder, allows you to expand the technological capabilities of the device, by ensuring the Assembly of bilateral gear rubber cables with different pitch teeth on both sides

0 tape (figure 4).

The proposed device provides the manufacture of rubber bands with a multiplicity of steps, teeth on both sides: on the length of one step of the teeth of the lower side

5 (Fig. 4) should be 1,2,3,4 ... etc. steps of the teeth of the upper side.

The device provides the possibility of winding the cord when assembling a double-sided toothed rubber band with different tooth pitch on

both sides of the tape while wrapping the cord around the reinforcing sleeves. The latter is carried out automatically, which ensures high build quality of the endless double-sided toothed rubber band.

Claims (2)

1. Device for assembling endless rubber cable tapes St. No. 1761537, different in that. what, with the aim technological expansion possible0 To the device by providing the possibility of assembling double-sided gear rubber bands with different tooth pitch on both sides, the gear rims of the main and additional clips are interconnected via a gearbox that is mounted on the carriage. 2. The device according to claim 1, wherein the yarn guide of one of the cages is mounted with the possibility of changing the eccentricity relative to its axis of rotation.