JPS6375123A - Apparatus for driving spindle of spinning machine - Google Patents

Abstract

PURPOSE:To equalize the height at which each belt is fitted, by dividing a number of spindles provided in one spinning machine into plural groups, providing special guide pulleys in a boundary position of each group and fitting a tangential belt for each group around the pulley. CONSTITUTION:Guide pulleys 2 having smaller diameter than a space between adjacent spindles 4 are provided in the boundary position of each group and a tangential belt 3 is fitted to the pulleys, when a number of spindles 4 provided in one spinning machine are divided into plural groups, a motor 5 and the endless tangential belt 3 are provided for each group and a plural number of spindles 4 are driven in each group. Thereby, each tangential belt 3 can be fitted at the same height, therefore the width of warps 4a of the spindles 4 can be narrowed.

Description

Detailed Description of the Invention Object of the Invention (Field of Industrial Application) This invention relates to a spindle drive device for a spinning machine, such as a spinning machine or a spinning machine, which has a large number of spindles arranged at a predetermined pitch along the longitudinal direction of the spindle. It is related to.

(Prior art) A spindle drive device of this type of spinning machine is provided with a drive shaft that passes through the center of the lower part of the machine in the longitudinal direction, and a number of chimney pulleys are provided on the drive shaft at predetermined intervals, and a drive shaft is provided close to each chimpulley. It is known to drive a spindle with a total of four spindles (m2 spindles each) by winding one tape endlessly through one jogger pulley. However, because this drive device has a large number of chimney pulleys and jockey pulleys arranged in the center of the lower part, air circulation in these parts is poor, and when each pulley is installed, fluff accumulates on the bracket, and the accumulated fluff This has the disadvantage that it flies into the yarn being spun, causing yarn breakage and deteriorating yarn quality.

As a spindle drive device that eliminates the drawbacks of the chimp pulley system, there is a spindle drive device that uses a tangential belt as disclosed in, for example, Japanese Utility Model Publication No. 56-28223. As shown in Fig. 5, this device has a drive pulley 1 and a guide pulley 2 arranged at both ends of a vJ machine base, and each pulley 1,
An endless tangential belt 3 is wound around the spindle 2 so as to be in contact with a full spindle 4 disposed on both sides of the spinning machine stand, and the drive pulley 1 is driven by a motor to move the spindle 4 to the full spindle. They are designed to be driven in unison. In the case of a method using this tangential belt 3, the disadvantages of the chimp pulley method mentioned above are solved, but the spindle of all the spindles is driven by one belt, and while moving in the tangential direction with respect to the spindle, In order to transmit the driving force, it is necessary to maintain a considerably high contact pressure between the belt and the spindle, and the tension applied to the belt is also large. For this reason, the belt must be made strong by increasing its width and thickness to withstand this, [and has the drawbacks of high windage loss and increased power requirements.

As a device for solving the drawbacks of this tangential belt method, the one shown in FIG. 6.7 has been proposed.

In this device, the spindle 4 of the spinning machine 1 is divided into a plurality of groups, and a taxial belt 3 driven by a separate drive motor 5 is provided for each group. Therefore, the number of spindles 4 driven by one tangential belt 3 is reduced, the belt width and thickness are both reduced, and the power required for driving the spindles is reduced.

(Problems to be Solved by the Invention) However, in the above-mentioned device, the tangential belt 3 for driving each spindle group divided into a plurality of spindle groups is connected to the spindle 4 for each adjacent group as shown in FIG. The height positions at which they contact the warb 4a are different. For this reason, the width of the warb 4a increases, the height of the entire spindle 4 increases, and the searching height also increases. Furthermore, since the contact position of the tangential belt 3 with respect to the warb 4a differs for each group, the position where the load is applied to the bearing that supports the spindle 4 differs, and if the bearing is installed at one location, it will be eccentric to the bearing. Add q 7% add'
There is a problem that the life of the Ml bearing and therefore the life of the spindle is 9), and that the manufacturing cost increases by 11 if the bearings are installed in two locations.

Structure of the Invention (Means for Solving the Problem) In order to solve the above-mentioned problem, in this invention, a large number of Divide the spindle into multiple groups according to the arrangement order,
Guide pulleys each having a diameter smaller than the spindle pitch are arranged near the spindles arranged at 1q position adjacent to at least another spindle group in each spindle group, and each spindle group is driven by a separate drive motor. An endless tangential belt was wound at the same height.

(Operation) The spindle drive device of the present invention rotationally drives each spindle via an endless tangential belt driven by a separate drive motor for each spindle group divided into a plurality of n\.

Since the tangential belts provided for each group contact the spindle at the same height position, the bearings supporting the spindle are loaded under the same conditions and no eccentric load is applied.

(Embodiment 1) A first embodiment embodying the present invention will be described below with reference to FIGS. 1-2. As shown in FIG. 1, a large number of spindles 4 are arranged substantially in a straight line at a predetermined pitch on spindle rails 6 extending along the longitudinal direction on both sides of a spinning machine stand. The spindle 4 is divided into a plurality of parts according to the order in which they are arranged. For example, Kata I! ! 112
When a spindle 4 with 0.00 weights and a total of 400 spindles on both left and right sides is disposed, it is divided into four groups each with 50 weights on one side and a total of 100 spindles on both left and right sides. Guide pulleys 2 having a diameter smaller than the spindle pitch P are rotatably disposed near the spindles 4 disposed at both ends of each spindle group. At one end of each spindle group, a drive motor 5 is disposed in the center of the spinning machine frame so that its output shaft 5a is in an upright position, and a drive pulley 1 is fitted and fixed to the output shaft 5a so as to be able to rotate integrally therewith. ing. The four guide pulleys 2
And an endless tangential belt 3 is attached to the drive pulley 1.
are wound at the same height. The drive motor 5 is disposed so as to be movable along the longitudinal direction of the tangential belt 3 in order to adjust the tension of the tangential belt 3. Furthermore, in order to ensure contact pressure between the spindle 4 and the tangential belt 3, a large number of pressing rollers 7 are arranged at predetermined intervals on the spindle rail 6 to press and bias the tangential belt 3 toward the spindle 4. ing.

Next, the operation of the apparatus configured as described above will be explained. When the search operation is started, each drive motor 5 is rotated, and the tangential bell 1-3 wound between the drive pulley 1 and the guide pulley 2 is driven. The tangential belt 3 rotates in a fixed direction while being pressed against the warbs 4a of each spindle 4 with a substantially uniform contact force by the action of the pressure roller 7, and all the spindles 4 are driven to rotate in the same direction.

Tangential belt 3 provided for each spindle group
The direction of movement is changed by the guide pulleys 2 arranged at the four corners of each spindle group, but since the diameter of the guide pulley 2 is smaller than the spindle pitch P, the guide pulleys 2 arranged adjacent to each other are at the same height. Even if they are placed at different positions, they will not interfere with each other. Therefore, the tangential belts 3 of each adjacent spindle group can all come into contact with the warbs 4a of the spindles 4 at the same height position. The bearings supporting the spindles 4 in all the spindles 4 are subjected to the same load, and eccentric loads are reliably prevented from being applied to the bearings in a particular spindle 4.

(Example 2) Next, a second embodiment will be described with reference to FIG.

In the apparatus of the above embodiment, it is necessary to use a synchronous motor as the drive motor 5 in order to drive each spindle group reliably in synchronization, but in this embodiment, each spindle group is driven without using a synchronous motor. This device differs greatly from the device of the previous embodiment in that it can be driven in a synchronous state. As shown in FIG. 3, a tension pulley 8 as a driven pulley is disposed on the opposite side of the drive pulley 1 in each spindle group so as to be movable along the longitudinal direction of the grave table. Tanzencharvels 1 to 3 are wound around each pulley 1.2.8, and
The tension is adjusted by moving the tension pulley 8. A second drive pulley 9 is fitted and fixed to the output shaft 5a of the drive motor 5 so as to be rotatable together, and a pulley having the same diameter as the drive pulley 9 is attached to the rotating shaft 10 on which the tension pulley 8 is fitted so as to be rotatable together. 11 is fitted and fixed, and a belt 12 is wound (1F) between both pulleys 9 and 11. Therefore, in the device of this embodiment, even if a synchronous motor is not used as the drive motor 5, the drive pulley 9 Since the pulleys 11 and 11 are driven in synchronization, each tangential belt 3 is driven in synchronization.

Note that the present invention is not limited to the above-mentioned embodiments. For example, in order to drive each tangential belt 3 in a synchronized state as shown in FIG. The provided guide pulleys 2 may be formed into two stages, upper and lower, and both guide pulleys 2 may be connected by a belt 13 so as to be integrally rotatable. Further, in the second embodiment, if the driving pulley 9 and the pulley 11 are each formed of a toothed pulley and a toothed belt is used as the belt 12, synchronization is further improved.

Effects of the Invention As detailed above, according to the present invention, since the number of spindles driven by one tangential belt is small,
Tanzencharbel! - The load applied to the belt is small, and the width and thickness of the belt can be reduced, windage loss of the belt is reduced, and the power required to drive the spindle is reduced. In addition, the tangential belts provided for each spindle group are all placed at the same height, so
This not only allows the belt to run at the optimal position of the warb, which prevents a decrease in spindle life, but also allows the height of the spindle to be reduced, which has the excellent effect of making the machine more compact.

[Brief explanation of the drawing]

FIG. 1 is a schematic plan view showing a first embodiment embodying the present invention, FIG. 2 is a partially omitted sectional view taken along line A-A in FIG. 1, and FIG. 3 is a schematic plan view showing a second embodiment. 4 is a schematic plan view showing a modified example, FIG. 5 is a plan view showing a conventional device, FIG. 6 is a plan view showing another conventional device, and FIG. 7 is a partially omitted sectional view thereof. It is.

Claims (1)

[Claims] 1. In a spinning machine having a large number of spindles arranged at a predetermined pitch along the longitudinal direction of the machine frame, the spindles are divided into a plurality of groups according to the arrangement order, and at least one of the spindles in each spindle group is divided into a plurality of groups according to the arrangement order. A guide pulley with a diameter smaller than the spindle pitch is arranged near the spindles arranged adjacent to the spindle group, and each spindle group is driven by a separate drive motor. A spindle drive device for a spinning machine that winds the shaft belt at the same height. 2. The spindle drive device for a spinning machine according to claim 1, wherein the guide pulleys disposed at adjacent positions are connected via a rotation transmission means so as to rotate in synchronization with each other. 3. Each of the tangential belts is wound around a driven pulley disposed on the opposite side of the drive pulley fitted to the drive shaft of the drive motor, and is wound around a driven pulley disposed on the opposite side of the drive pulley fitted to the drive shaft of the drive motor, and is wound around a driven pulley disposed on the adjacent spindle group. 2. The spindle drive device for a spinning machine according to claim 1, wherein the device and the device are connected via a rotation transmission means so as to rotate in synchronization with each other.