SU1687446A1 - Machine for wrapping v-belts - Google Patents

Abstract

The invention relates to the production of drive belts and can be used for the production of V-belts. The purpose of the invention is to expand the technological capabilities of the machine with high quality core wrappers. For this, the working surface 10 of each disk 6 of the wrapping mechanism is made in the form of a ring around the periphery of the disk butt with an inclined angle a - 2 - 3 ° C. generatrix. As a result, when machining the cores of V-belts of any width, the width d of the working surface of the disk 6 remains constant within 5-8 mm, which prevents the core from unrolling during wrapping with a wrapping ribbon. 4 yl

Description

The invention relates to the production of drive belts and can be used to produce V-belts.

The purpose of the invention is to expand the technological capabilities of the machine with high quality core wrappers.

FIG. 1 shows the proposed machine; in fig. 2 - disc wrapping mechanism; in fig. 3 is a view A of FIG. 2; in fig. 4 - disk at the time of interaction with the core.

The V-belt wrap machine contains a device for mounting and tensioning an endless core with pulleys 2 and 3 and a supporting roller 4 installed on the base 1, a mechanism 5 for feeding and applying a wrapping ribbon on the core and a wrapping mechanism with disks 6 and side rollers 7 fixed on pivotal rolling pins 8 Rotation of pivots 8 is performed using a ram 9. Each wrapping disk 6 has a working surface 10 on the end face.

made in the form of a ring along the periphery of the end of the disk with a generatrix inclined below the angle a 2 - 3 °. It is advisable that the width d of the ring be 5 to 8 mm. The central part of the end face of the disk 6 is made with a cavity 11.

To adjust the machine to different lengths of machined cores, there is a support roller 4 mounted on a support 12, which is movably mounted on vertical rods 13. A screw 14 rotating through a mechanism 15 is used to move the support 12. The rods 13 and the screw 14 are mounted on a bracket 16. Pulleys 2 and 3 are mounted on a carriage 17 movable from a pneumatic cylinder (not shown) along vertical guides 18. The drive for moving the core is made in the form of a driving pulley 19 located under pulleys 2 and 3.

On stand 1, a bobbin holder 20 is installed to install a roll of tissue

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a wrapping ribbon with a polyethylene gasket, a compensator 21 for creating a ribbon stock and setting its pre-tension, a roller 22 for tearing the fabric ribbon from the polyethylene gasket, a mechanism 5 for rolling the strip and picking the ribbon from a roll, guide rollers 24, cabinet 25 for controlling the operation of the machine and wrapping ribbon cutting mechanism 26.

The machine works as follows. A roll 27 of ribbons with a polyethylene liner 28 is mounted on a bobbin holder 20, a polyethylene liner 28 is passed through a roller 22 and mounted on a drum of the seaming mechanism 23. The fabric wrapping ribbon 29 is passed over the polyethylene pad on the seaming mechanism drum 23 through the compensator 21, the supporting rollers 24, the feeding mechanism 5 and is fed under the cutting mechanism 26 which equals the end of the ribbon. On the pulleys 2 and 3 and the support roller 4, the machined core 30 of the V-belt is put on. At this point, the carriage 17 is in the upper position. When the machine is put into operation, the wrapping ribbon 29 by the mechanism 5 is fed to the core 30 of the V-belt, and the carriage 17 moves downwards. The core 30 at the same time pulls and comes in contact with the driving pulley 19. The bonding of the core 30 to the ribbon 29 occurs.

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The pneumatic cylinder 9 is turned on and the rolling pins 8 are rotated, and the side rollers 7 and the wrapping disks 6 are reduced and occupy the working position. The drive pulley 19 is driven to rotate. At the same time, the core 30 begins to move and its wrapping occurs with the ribbon 29 using the disks 6 and the rollers 7.

By the signal of the wrapping ribbon length counter (not shown), the cutting mechanism 26 is turned on, the wrapping ribbon 29 is cut, the core 30 is drawn, the drive pulley 19 stops and all mechanisms are in their original position.

The proposed machine allows automatic wrap of V-belt cores with a length of less than 500 mm.

Claims (1)

Invention Formula A machine for wrapping V-belts, containing a device for mounting and tensioning an endless core with pulleys, a mechanism for feeding and applying a wrapping ribbon on the core and a wrapping mechanism with discs having a cutting surface at the end, characterized in that In order to expand the technological capabilities of the machine with the high quality of the core wrap, the working surface of each disk is made in the form of a ring around the periphery of the disk end with an inclined inclination at an angle of 2-3 °. / b & 1 Fig.Z sht Fig4