RU1772236C - Twisting-winding mechanism ring spinning and twisting machines - Google Patents

Abstract

Usage: textile industry, spinning and spinning machines. SUMMARY OF THE INVENTION: A ring of magnetic material is fixed coaxially to the spindle on a ring bar that moves reciprocally along the axis of the spindle. A drive disk is freely mounted on the spindle spindle. Above the spindle, a second drive disk is arranged coaxially with it, made with an axial hole for passage of the thread and kinematically connected with the drive disk on the spindle. The ends are fixed to the disks with a string placed parallel to the axis of the spindle at a distance from it inside the magnetic ring on the ring bar. A thread guide is installed on the string, made in the form of a sleeve of magnetic material. The sleeve is freely mounted on the string with a radial clearance relative to the ring and has a non-conductive material. 1 ill. (L s

Description

The invention relates to the textile industry, and in particular to the field of yarn production on a ring spinning machine and twisting of yarn on twisting machines.

A device is known which consists of a drive spindle for forming a cob, a ring covering the cob and a runner freely moving along the ring.

The disadvantages of this device include high runner heating due to friction forces between the ring and the runner, which leads to quick wear of the runners, as well as a limited runner speed (40 m / s), which does not allow increasing the performance of ring spinning and twisting machines.

Closest to the proposed solution is a torsion-winding mechanism containing a drive spindle for forming an ear, a ring of magnetic material fixed coaxially to a spindle on an annular strip, mounted with the possibility of reciprocating movement along the axis of the spindle and a thread guide made of magnetic material, made in the form of a ring and mounted with the possibility of magnetic interaction with the ring located on the ring bar.

The disadvantages of this device include: a limited spindle speed due to the presence of large friction forces between the rings guiding the thread into the winding zone, which leads to increased yarn tension, increased breakage and, therefore, reduces the productivity of the device.

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The aim of the invention is to increase the productivity of the machine by increasing the spindle speed and stabilizing the spinning process.

This is achieved by the fact that the torsion-winding mechanism of ring spinning and spinning machines, comprising a drive spindle for forming an ear, a ring of magnetic material, coaxially mounted to a spindle on an annular plate mounted with the possibility of reciprocating movement along the axis of the spindle and a thread guide from magnetic material, mounted with the possibility of magnetic interaction with the ring on the ring strip, according to the invention, the mechanism contains two kinematically connected one to another drive disk and a string fixed by the ends on the disks and placed parallel to the axis of the spindle at a distance from it inside the magnetic ring on the ring bar, while one disk is freely mounted on the spindle spindle, the other disk is aligned with the spindle and made with an axial hole for the passage of the thread, and the thread guide is made in the form of a sleeve of magnetic material loosely mounted on a string with a radial clearance relative to the ring and having a thread conductor.

The drawing shows the winding mechanism of the ring spinning and twisting machines.

The mechanism consists of a spindle 1, drive disks 2 and 7 with a string 3 rigidly fixed in them, a sleeve 5 with a thread guide 17 freely moving along string 3, a magnetic ring 4, an annular bar 8, friction disks 10 and 11 mounted on a shaft 9 which rotates in ball bearings 12 and 13, two bracket bodies 14 and 15, a drive belt 16, springs 18 and 19.

The device operates as follows.

A drive disk 2 is mounted on the spindle 1 with the possibility of relative displacement with respect to the spindle and a cartridge with the yoke 6 being wound thereon. Above the spindle, aligned with it. a second drive disk 7 having an opening for passage of yarn is mounted in the housing-bracket 14. The metal string 3 is tensioned between the drive discs 2 and 7 and rotates with them at high speed. String 3 carries a sleeve 5 with a thread guide 17, which performs a reciprocating movement of the device in accordance with a given law of movement of the ring bar 8

under the influence of the magnetic forces of the ring 4 mounted on the ring bar. Synchronous rotation of the drive discs 2 and 7 is provided by a vertical shaft 9 s

friction discs 10 and 11, rigidly mounted on the shaft and driven by a drive belt 16, the speed of which corresponds to the speed necessary for twisting the yarn and winding

0 to cartridge 6. The contact force between the disks 7 and 11, 2 and 10, eliminating mutual slippage, is regulated by the springs 18 and 19. In the process of yarn, the yarn passes through the hole in the disk 7, through the yarn 5, the guide 17, made as a whole with sleeve 5 and wound around cartridge 6. Thread guide 17c with sleeve 5 is made of ferromagnetic material and tends to press against magnetic ring 4.

0 The gap between the sleeve 5 and the magnetic ring 4 is calculated depending on the deformation of the string 3 during operation of the device. The purpose of the calculation is to prevent the sleeve from sticking to the ring. The deformation of the string 5 is determined mainly by the rigidity of the string fastening in the drive disks 2 and 7 and the elastic modulus of the metal string. Having ensured sufficient rigidity of the string fastening and the modulus of elasticity of the string material, it is possible to calculate the minimum allowable gap between the sleeve 5 and the magnetic ring 4 at various speeds of operation of the device.

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Claims (1)

SUMMARY OF THE INVENTION Spinning and winding mechanism of ring spinning and twisting machines containing a drive spindle for 0 forming the cob, a ring of magnetic material fixed coaxially to the spindle on an annular bar mounted with the possibility of reciprocating movement along the axis of the spindle, 5 and a guide made of magnetic material, mounted with the possibility of magnetic interaction with the ring on the annular strip, characterized in that, in order to increase productivity for 0 by increasing the spindle speed, the mechanism contains two kinematically connected drive disks and a string fixed by the ends on the disks and placed parallel to the axis of the spindle 5 at a distance from it inside the ring on the ring bar, while one disk is freely mounted on the spindle spindle, the other disk is coaxial with it and filled with an axial hole for thread passage, and the thread guide is made in the form of a sleeve made of magnetic material with a ceo-gap relative to the ring and having it vigorously mounted on a string with a radial thread conductor. L { h s tr B Jfl {9