SU1590494A1 - Device for setting spindle in textile machine - Google Patents

Abstract

The invention relates to the textile industry and makes it possible to increase the efficiency of the spatial vibration isolation of the spindle with its different mass. A spindle holder is mounted on the cantilever rods of the fixed bracket by means of elastic support elements. Each resilient support member is a helical coil spring made at the end portions with the diameter of the coils increasing towards its ends and associated with the end coils with the holder. The screw spring can be made convex in the middle part along its length and connected with the holder with the convex part. When the mass of the spindle changes, the number of coils of the spring placed on the rod or on the holder changes and its rigidity changes, which ensures the equal frequency of the elastic suspension of the spindle and increase the efficiency of its spatial vibration isolation. 4 il.

Description

The invention relates to the textile industry and relates to a device for mounting a spindle on spinning and twisting machines.

The aim of the invention is to increase the efficiency of the spatial vibration isolation of the spindle with its different mass.

FIG. 1 shows the device, a general view; in fig. 2 - the same, top view; in fig. 3 - spindle holder with an elastic support element on the bracket stem; in fig. 4 is also a variant of the 1; 1 and elastic support element.

The device comprises a bracket 2 mounted on the spindle beam 1, having two cantilevered rods 3, on which the holder 4 of the spindle 5 of the machine is mounted for movement along them. The free ends of the rods are connected by a connecting bar 6, on which

7 spindle brake is fixed. On the rods there are springs 8 of compression for clamping the spindle to the tangential driving belt 9 of the machine.

The device comprises means for forcing the holder on the rods and clamping the spindle to the brake 7. Having a thread 10 connected to the thread separation sensor (not shown) with a beveled end 11, mounted on a bracket with the possibility of longitudinal movement and interaction with the beveled end 11 with the protrusion 12 of the holder four.

The holder is mounted on the rods 3 by means of elastic support elements 13, each of which is a helical cylindrical spring 14 mounted on the rod, which is made with a coil diameter increasing towards its ends and connected with end coils 15 with a holder (Fig. 3 ). The spring 14 can be made convex in the middle

with

SP

yoo o

it along the length of the part and is connected by a convex part 16 to the holder (Fig. 4).

The brake 7 is fixed on the strap 6 by means of screws 17 with nuts 18 for adjusting its position relative to the spindle. The holder has holes 19 for supplying lubricant to the rods. Instead of the compression spring 8, tension springs 20 may be used (Fig. 3).

The device works as follows.

When the thread breaks, the sensor 10 moves upwards along the sensor signal, which bends with the beveled end 11 on the protrusion 12 of the holder 4, moving it together with the spindle 5 along the rods in the direction of the brake 7 and pressing it towards it. In this case, the spindle moves away from the drive belt 9 and is braked. After the thread breakage is eliminated, the rod 10 goes down and the holder with the spindle springs 8 or 20 returns to its original operating position, and the spindle is pressed against the belt 9.

The vibration arising during the rotation of the spindle is perceived by the helical springs 14, which in this case are spatially deformed, thereby preventing the transfer of the vibration energy of the spindle to the spindle beam and its reemission from the spindle guard. These springs provide equal frequency elastic suspension of the spindle holder when changing its mass and package weight on it. Since, for example, as these masses increase, a portion of the coils of each spring 14 (in both versions) is located on the rod or on the inner surface of the holder, as a result of which the spring stiffness increases and the natural frequency of the elastic spindle suspension system remains constant.

When securing the end coils of the spring 14 on the holder and ensuring the free movement of its middle part along the rod, the coils of the spring in this part do not move one relative to the other (Fig. 3).

In another embodiment of the spring (Fig. 4}, the turns of the middle part of the spring are located in the helical groove on the cylindrical surface of the holder 4, located on

rod, the coils of the end parts of the spring freely move along the rod and are the clamping elements for the spring. Equipotentiality of the elastic suspension of the spindle with its different mass contributes to increasing the efficiency of its spatial vibration isolation and, in addition, to reducing noise.

Claims (1)

Invention Formula A spindle mounting device on a textile machine, comprising a bracket mounted on the spindle beam, mounted on the bracket by means of elastic support elements, a spindle holder placed on a spring bracket to hold the spindle against the tangential driving belt of the machine and means for forcing the holder to move relative to the bracket and clamp the spindle to fixed installed brake when it is stopped, characterized in that, in order to increase the efficiency of spatial vibration isolation the spindle with its different mass, the bracket has two cantilever rods and a connecting bar fixed on their free ends, and the spindle holder is mounted on rods with the ability to move on them. herewith, each resilient support element is a helical coil spring mounted on the rod, formed on the end portions with the diameter of the coils increasing in the direction towards its ends and related by the end coils to the holder or made convex in the middle part along its length and connected by the convex part to holder, with the brake attached to the interposer. 6 -five 11 10 / 12 Schig.1 -U /four ® 0 @ @ @ t J 15  2.4 go I -aa / vvF @ / i / J  J