JPH0244923B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a drive device for a spindle carriage in a mill spinning machine for spinning woolen yarn.

(Prior Art) As shown in FIGS. 5 and 6, in the drive mechanism of the spindle carriage of a conventional mill spinning machine, the drive shaft 104 for outward movement is rotated and the drive shaft 104 is fitted onto the drive shaft 104. A scroll 105 that is attached to the winding surface and has a spiral winding surface, and a rope tightening wheel 1 provided on a spindle carriage 103.
Scroll the rope 102 connected to 09 and 1
05 and unraveling the rope 101, the spindle carriage 103 is moved outward, and
As shown in FIGS. 7 to 9, the inward drive shaft 11
The ropes 113, 113 connected to the scrolls 111, 111 and the rope tightening rolls 112, 112 are rotated by the scroll 111.
The spindle carriage 103 was moved outward while the rope 114 was unwound from the scroll 1115.

(Problems to be Solved by the Invention) In the case of the above drive means, the scrolls 105 and 1 are
The winding positions of the ropes 102 and 113 around the ropes 11 fluctuate, causing a deviation from the running position of the spindle carriage 103, and this deviation causes the spindle carriage 103 to run abnormally at the turning end. ,
There are problems in that the yarn is subjected to impact and eventually causes breakage, problems in that the travel distance of the spindle carriage 103 fluctuates and causes unevenness in count and twist, problems in that the entire mechanism becomes complicated, etc. It was hot.

SUMMARY OF THE INVENTION An object of the present invention is to provide a drive device for a spindle carriage in a mill spinning machine, which can solve the above-mentioned problems and optimize the running operation of the spindle carriage.

(Means for Solving the Problems) The present invention provides that a portion of an endless transmission member that is circularly driven by a control motor that can control speeds is vertically connected to a guide member provided on a spindle carriage. The gist of this invention is a drive device for a spindle carriage in which a slide member which is displaceable but is held in such a manner that it cannot be displaced in the running direction of the spindle carriage is locked.

(Function) The device of the present invention changes the speed of an endless transmission member using a control motor that can control the speed and drives the endless transmission member in a circular manner.
A slide member connected to a part of the transmission member,
The guide member provided on the spindle carriage is held so as to be movable in the vertical direction, and the spindle carriage is configured to travel at a deceleration before and after the inward end, and decelerate at the outward end to travel back and forth. This is what I did.

(Example) Next, an example of the present invention will be described with reference to the drawings.

Front frame 1 and rear frame 3 of Muille spinning machine
A stay beam 3 is horizontally suspended between the front frame 1 and the front frame 1, and a Shino delivery roller 16 is rotatably supported on the front frame 1.

An oblong spindle carriage 13 is mounted on a rail 17 laid on the floor between the front frame 1 and the rear frame 3 so as to be horizontally movable in the front and rear direction via front and rear wheels 18. A plurality of spindles 15 are arranged on a spindle carriage 13 to twist and wind the spun yarn sent out from a feed roller 16, and are rotatably supported in a forward-inclined manner.

The control motor 4 installed on the floor near the front frame 1 is a DC servo motor, a print motor, etc. that can be controlled in variable speed by electronic control means such as DC control or inverter control. A pair of motor wheels 5, 5 are provided on the output shaft 4a.
is fitted.

A pair of double-row front chain wheels 7, 7, each rotatably supported by a pair of brackets 6, are disposed slightly behind both motor wheels 5 and near the inward end of the spindle carriage 13. An endless chain 9 is hung between the wheel 7a on one side of both front chain wheels 7 and the motor wheel 5, respectively.

The rotation of the control motor 4 is controlled by the spindle carriage 1.
A pair of endless transmission chains 10, 10 arranged in parallel to transmit power to both front chain wheels 7
and a pair of wheels rotatably supported via brackets 19, 19, respectively, disposed near the outward end of the spindle carriage 13, and having the same number of teeth as the front chain wheel 7. The chain wheels 8 and 8 are respectively rotatable and tensioned. The length of both transmission chains 10 is the length of the front and rear chain wheels 7,
8, that is, the length of the straight section 10a of the transmission chain 10, is A, and the pitch radius of the front and rear chain wheels 7, 8, that is, the curve of the curved sections 10b, 10b of the transmission chain 10. It is set so that A+2B=L, where B is the advance radius and L is the travel distance of the spindle carriage 13.

A vertically elongated block guide 14 is attached to the front end of the spindle carriage 13, and a vertical guide groove 14a, which is open on both sides, is passed through the lock guide 14.

A rectangular parallelepiped slide block 12 fitted vertically slidably into the guide groove 14a of the block guide 14 moves vertically relative to the block guide 14 in order to temporarily stop the block guide 14 together with the spindle carriage 13 at the folded end. It is possible to displace the spindle carriage 13, but the spindle carriage 13 is restrained from being displaceable in the running direction.

The cylindrical bush 11 is a slide block 12
A part of both transmission chains 10 is connected to this bush 11 so as to be freely rotatable in the center thereof, and a part of both transmission chains 10 is interlocked with a slide block 12 to link both transmission chains 10 and a spindle carriage 13. In order to do this, a pair of connecting pins 20, 20 are inserted in parallel and horizontally, and the vicinity of both ends of both connecting pins 20 are respectively extended laterally to connect to both adjacent joints of both transmission chains 10. A portion of both transmission chains 10 is fixed to the slide block 12.

Then, when the control motor 4 is rotationally driven to drive both transmission chains 10 in circulation, the slide block 12 moves together with the transmission chain 10, and in the linear portion 10a of the transmission chain 10, both connecting pins 2
0 are parallel in the front and back, and the slide block 12 is moved to the vicinity of the upper end or the lower end of the guide groove 14a of the block guide 14, and moves straight along with the block guide 14, and the spindle carriage 13 is moved at the circulation speed of the transmission chain 10. Run with
Furthermore, the slide block 12 is connected to the transmission chain 10.
In the forward and backward curved portion 10b, the block guide 14 moves in a curved manner while sliding vertically within the guide groove 14a, and the block guide 14 decelerates and interlocks in a sine curve shape, and the spindle carriage 13 reaches the inwardly advanced end. Before and after, the vehicle decelerates in a sine curve, then turns around, and just before the end of outward travel, the vehicle decelerates and stops.

Therefore, the spindle carriage 13 can automatically travel in the order of outward movement, deceleration and stop at the outer movement end, inward movement, deceleration at the inner movement end, and then turning back.

Further, the control motor 4 is connected to the spindle carriage 1.
The speed change is controlled over the entire travel distance or locally so that the vehicle 3 travels at an appropriate speed during inward and outward travel.

In addition, a toothed belt is used instead of a chain,
In addition, a toothed pulley may be used in place of the chain wheel.

Next, the operation and effects of the embodiment having the above configuration will be explained.

Now, in this example, a part of the endless transmission chain 10, which is circularly driven by a control motor 4 capable of variable speed control and is set to adapt to the travel distance L of the spindle carriage 13, has a spindle carriage. A slide block 12 is fixed to a slide guide 14 provided at a slide block 13, which is capable of shifting in the vertical direction and is held in such a manner that it cannot be displaced in the running direction of the spindle carriage 13.

Therefore, the expansion and contraction of the transmission chain 10 that pulls and drives the spindle carriage 13 is reduced, the running condition of the spindle carriage 13 is optimized and stabilized, and the spindle carriage 13
This has the effect of suppressing fluctuations in the traveling distance of the fibers, reducing unevenness in spinning count and twisting, and improving the quality of spinning.

In addition, since the spindle carriage 13 decelerates and stops just before the outward movement end, and decelerates and turns back just before the inward movement end, the spindle carriage 13 receives shocks at the turn-back end and the stop end. It is possible to reduce the vibration of the machine and the yarn breakage caused by the impact, and it is possible to increase the speed of the spindle carriage 13, which has the effect of increasing productivity.

Furthermore, since the control motor 4 is configured to change the speed of the spindle carriage, the speed of the spindle carriage 13 can be accurately controlled, and the drive mechanism of the spindle carriage 13 can be controlled accurately. can be simplified.

(Effects of the invention) In other words, the present invention provides a part of the endless transmission member which is driven in circulation by a control motor capable of variable speed control and is movable in the vertical direction with respect to the guide member provided in the spindle carriage. By locking the slide member that is held so that it cannot be displaced in the running direction of the spindle carriage, the running condition of the spindle carriage can be stabilized and the quality of spinning can be improved, and the spindle carriage can be This has the effect that the impact effect at the running end of the shaft is reduced and the spindle carriage can run at high speed.

[Brief explanation of drawings]

Figures 1 to 4 show an embodiment of the present invention. Figure 1 is an overall side view, Figure 2 is a plan view, Figure 3 is a side view of main parts, and Figure 4 is a side view of the main part. Similarly, the plan view and FIGS. 5 to 9 show the drive mechanism of a conventional spindle carriage. FIG. 5 is a side view, FIG. 6 is a plan view of FIG. 5, and FIG. 7 shows other parts. plan view of
Figure 8 is a view taken along the X-X line in Figure 7, and Figure 9 is a view of Figure 7.
FIG. 4...Control motor, 10...Transmission chain, 1
2...Slide block, 13...Spindle carriage, 14...Block guide.

Claims (1)

[Claims] 1. A part of the endless transmission member, which is circularly driven by a control motor capable of variable speed control, is movable in the vertical direction with respect to a guide member provided on the spindle carriage, and is movable in the running direction of the spindle carriage. A drive device for a spindle carriage in a mill spinning machine, characterized in that a slide member is fixed so that it cannot be displaced.