JPH0313328B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a spindle drive device for a ring spinning machine. The present invention relates to a spindle drive device.

BACKGROUND TECHNOLOGY Various spindle drive methods and devices for well-known ring spinning machines have been devised and announced, but most of them are
This is a 4-spindle drive system in which drive pulleys are arranged on a horizontal axis, and an improved 6-12 spindle drive system or a tangential belt drive system.

To explain the 4-spindle tape pulley drive system in detail, as shown in Fig. 5, a horizontal drive shaft (commonly known as a chim pulley shaft) is provided in the middle of a single row of spindles in parallel to the row of spindles. This is a spindle driving method in which a tension pulley 4 for applying tension to the driving pulley 3 and the spindle tape 5 is provided for every four spindles of the opposing spindles 1, and four spindles are grouped as a unit.

In addition, the 6 to 12 spindle drive system, which is an improved version of the above, has one spindle 1 on one side and two spindles on both sides, and one tension pulley 4 on one side and two spindles on both sides.
The 6-spindle drive system shown in FIG. 6 has an increased number of spindles. Fig. 7 shows an 8-spindle drive system, Fig. 8 shows a 10-spindle drive system, and Fig. 9 shows a 12-spindle drive system. Fig. 10 shows the number of tension pulleys used and the power required per spindle for each drive system. As shown in the comparison table.

In addition, when the axis of the drive pulley 3 is arranged parallel to the spindle 1, the 4-spindle drive system is as shown in Fig. 11, the 12-spindle drive system is as shown in Fig. 12, and the 16-spindle drive system is as shown in Fig. 12. The result will be as shown in Figure 13.

Furthermore, in the tangential belt system, one tangential belt on one side, two tangential belts on both sides, or one tangential belt extending over both sides is provided for a row of spindles, and the tangential belt is in contact with the spindle wav. This is a method in which a pressure roller (layer contact roller) is provided and one spindle (usually 400 spindles) is driven by one or two tangential belts.

It is well known that in the past, the electric motor for driving the spindle also drives draft alignment lifting motions and the like other than the spindle.

Problems to be Solved by the Invention In these known drive methods, the relationship between the spindle and the tension pulley is one for every four spindles in Fig. 5, three for six spindles in Fig. 6, and eight tension pulleys in Fig. 7. 3 pieces for each weight, 5 pieces for 10 weights in figure 8, 5 pieces for 12 weights in figure 9, 1 piece for every 4 weights in figure 11, 3 pieces for 12 weights in figure 12, 3 pieces in figure 13.
5 are required for 16 spindles, and the usage ratio of tension pulleys per spindle is 1/4, 3/6, 5/8 in each figure, respectively.
5/10 5/12 1/4 3/12 5/16 ratio, 1/4
The value is not smaller than , and the usage efficiency is poor. Further, in the tangential belt drive system, a contact pressure roller is required for every two spindles, and a large number of contact pressure rollers are required.

And when operating the spindle at extremely high speeds,
As the speed of the spindle increases, the speed of the drive pulley, tension pulley, and contact roller also increases.

As speeds have increased in this way, it has been necessary to increase the shaft diameter of each pulley and the strength of the bearings, which has led to problems such as increased power consumption and increased costs.

In order to suppress the increase in power consumption associated with the above-mentioned ultra-high speeds, measures have been adopted to suppress the increase in rotational speed and damage to the bearings by increasing the diameter of the drive pulley, tension pulley, contact roller, etc. However, there are limits to how much power consumption can be suppressed by such means, and it cannot be said to be sufficient.

Furthermore, in the case of the conventional spindle drive system shown in FIGS. 5 to 9, a vertical spindle is driven by a drive pulley with a horizontal rotation axis, so the spindle drive tape must be guided and driven in a twisted state in the middle. This has become the key to increasing speed.

An object of the present invention is to provide a driving device for a spinning frame with an electric motor for driving the spindle and a motor for driving the draft part of the spinning frame other than the spindle, in order to deal with ultra-high speeds of the spindle. It is an object of the present invention to provide a spindle drive device in which the number of rotating bodies other than the spindle can be reduced as much as possible.

Means for Solving the Problems In order to achieve the above-mentioned object, the present invention divides a spindle drive device into a plurality of groups, each consisting of 4 opposing spindles on both sides of a machine stand, each consisting of a total of 8 spindles. For each group, an endless spindle tape is stretched around the warp of the eight spindles of the group so that it is always in contact with the warp for about 1/4 of a turn.
This spindle tape was arranged parallel to the spindle axis line in the middle of the arrangement of the eight spindles.
It is designed to be driven by two drive pulleys and one tension pulley. The drive pulleys may be connected to the electric motor for each group directly or via bearings, or the drive pulleys of adjacent groups may be connected by a belt or other transmission means, and one of the drive pulleys may be connected to the electric motor directly or via a bearing. may be connected to the electric motor directly or via a bearing.

In addition, the electric motor for driving the spinning machine other than the spindle drive mainly controls the driving of the draft part and lifting motion, etc., but the spindle drive motor and the motor for drives other than the spindle drive are synchronized. It is designed to be rotated.

Effect It is sufficient to use one drive pulley and one tension pulley for each eight spindles, and the number of rotating bodies other than the spindle is less than half that of the conventional system.

Moreover, since the drive pulley and tension pulley are both arranged vertically, just like the spindle axis, there is no need to twist the spindle drive tape. It has been impossible to assemble (remove) the spindle tape after the machine has been assembled, but with the method of the present invention, it is possible to assemble the endless spindle tape even after the machine has been assembled.

Furthermore, in order to change the SZ twisting direction, in the conventional method it was necessary to rearrange the position of the drive pulley and at the same time replace it with one with the opposite twist of the spindle tape, but with the device of the present invention, the rotation direction of the spindle drive motor is changed. This is possible by changing only .

Furthermore, since the spindle drive tape is always in contact with each spindle warp for about 1/4 turn to transmit rotational force, the rotational force is transmitted reliably.

The electric motor, electric means, etc. are designed so that each spindle is driven at the same speed.

Embodiment FIG. 1 is a perspective view of a first embodiment of the present invention, in which 1 is a spindle, 2 is a spindle warb, and 3 is a perspective view of a first embodiment of the present invention.
is a drive pulley, 4 is a tension pulley, 5 is a spindle drive tape, and 6 is an electric motor.

The drive pulley 3 and the tension pulley 4 are used for each of the four opposing spindle rows on both sides of the machine, for a total of eight. In addition, the eight spindles 1 are arranged in the middle of the array, that is, four spindles are arranged inside the opposing middle part (see FIG. 3).

The spindle drive tape 5 is stretched in a rectangular shape so as to circumscribe the warbs 2 of the eight spindles 1, and the center of the four spindles 1 on one side is wrapped around the drive pulley 3, and the center of the four spindles 1 on one side is wrapped around the drive pulley 3. The center of 1 is wrapped around the tension pulley 4 so that it is always in contact with each warb 2 for about 1/4 turn. It is preferable that the drive pulley 3 and tension pulley 4 have as large a diameter as possible.

The tension pulley 4 has a similar structure to a well-known structure and is installed so as to be able to apply tension to the tape 5.

The embodiment shown in FIG. 1 shows a case where the electric motor 6 is directly connected to the drive pulley 3, but as shown in FIG. It is also possible to connect any one driving pulley 3 to the electric motor 6 by connecting these transmission pulleys 8, 8 with a transmission belt 9.

The above-mentioned transmission means is not limited to a belt, but may be other means.

In short, eight spindles are grouped together, and each group uses one drive pulley and one tension pulley whose axes are parallel to the spindle (see Figures 3 and 4).
For a ring spinning frame with 400 spindles, it is sufficient to use 50 drive pulleys and tension pulleys divided into 50 groups, and an electric motor may be provided for each drive pulley or for multiple pulleys. . Further, the stop control at the time of thread breakage may be performed for each group, or may be performed all at once.

Effects of the Invention According to the present invention, the number of rotating bodies other than the spindle used can be reduced to less than half compared to the conventional one, and it is highly effective in suppressing the increase in power consumption caused by the ultra-high speed of the spindle. (Comparison table in Figure 10, Figures 3 to 4 and Figures 11 to 13)
(See illustration).

In addition, since the drive pulley and tension pulley axes are arranged parallel to the spindle axis, the spindle drive tape can be tensioned and driven without twisting.
It can sufficiently handle high speeds.

[Brief explanation of drawings]

Fig. 1 is a perspective view showing a first embodiment of the present invention, Fig. 2 is a perspective view showing a second embodiment of the invention, and Figs. 3 and 4 are plane explanations of Figs. 1 and 2. 5 to 9 are plan explanatory diagrams of the conventional chimpully shaft drive system of 4 spindles, 6 spindles, 8 spindles, 10 spindles, and 12 spindles, and FIG. This is a comparison table of the pulleys and required power of the method shown in the figure and the conventional method shown in Figs. 5 to 9. Figs. FIG. 3 is an explanatory plan view of each driving method for a spindle and 16 spindles. 1...Spindle, 2...Spindle warb,
3... Drive pulley, 4... Tension pulley, 5
...Spindle drive tape, 6...Electric motor, 7...
...Bearing, 8...Transmission pulley, 9...Transmission belt.

Claims (1)

[Scope of Claims] 1. In a ring spinning machine, in which a large number of spindles are rotatably supported in one row on each side of the machine frame with their axes perpendicular and rotatable at predetermined intervals, the spindle rows on both sides of the machine frame are opposed to each other. Divide into multiple groups, each with a total of 8 pieces of 4 pieces each.
For each group, always apply an endless spindle tape to the warp of the eight spindles of the group at approximately 1/2
A spindle for a ring spinning machine, characterized in that it is driven by one drive pulley and one tension pulley, which are stretched in contact with each other for about four turns and are arranged parallel to the axis of the spindle. Drive device. 2. The spindle drive device for a ring spinning frame according to claim 1, wherein the drive pulley is connected directly or via a bearing to an electric motor serving as a power source. 3. A patent characterized in that adjacent groups of drive pulleys are interconnected by transmission means, and one of the drive pulleys is coupled directly or via a bearing to an electric motor serving as a power source. A spindle drive device for a ring spinning machine according to claim 1. 4. The spindle drive device for a ring spinning frame as set forth in claim 1, wherein the electric motor that rotates the drive pulley of the spindle tape is rotated in synchronization with the electric motor that drives components other than the spindle of the spinning frame.