JPH07122186B2 - Traveler exchange - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a traveler changer for automatically changing a traveler inserted in a ring of a ring spinning machine, and more particularly to a traveler exchanger capable of operating with respect to a ring spinning machine in operation.

[0002]

2. Description of the Related Art First, a ring spinning machine in which a traveler is used will be described with reference to FIG. The ring spinning machine 101 has a twisting mechanism 102 and a drafting mechanism 103. The draft mechanism 103 includes a back roller 104 and an apron 105.
Middle roller 106 having front and front roller 1
07 upper and lower roller pairs are arranged in order from top to bottom, the upper roller of each roller pair is supported by a cradle arm so as to be openable and closable, and the lower roller of each roller pair is driven. The large-diameter sliver S or roving thread S becomes a thread through the draft mechanism 103. This yarn is spun through a twisting mechanism 102 described below. The twisting mechanism 103 includes a spindle shaft 2 into which the bobbin 2 is inserted, a ring rail 4 which is vertically movable along the longitudinal direction of the bobbin 2 and traverses, a ring 5 fixed to the ring rail 4, A traveler 7, which is attached to the flange 6 of the ring 5 and is free to travel in the circumferential direction,
The balloon control ring 9 and the snell wire 8 are arranged from bottom to top. The spindle shaft 1 is a belt 3 common to a plurality of weights and normally rotates at a high speed of about 10,000 to 20,000 RPM. The yarn Y is wound on the bobbin 2 via the snell wire 8, the balloon control ring 9 and the traveler 7. When the bobbin 2 rotates, the traveler 7 is pulled by the yarn, runs on the flange 6 of the ring 5, and imparts twist to the yarn. There is a difference in rotation speed between the bobbin 2 and the traveler 7 by an amount corresponding to the length of the yarn sent from above, and the bobbin 2 is wound by this length. That is, the ring 5 and the traveler 7 are a friction resistance body for producing a difference in the number of rotations, and at the same time, they are a traveling direction changing mechanism for a twisting action to a winding action.

The traveler 7 is usually a C-shaped metal fitting and is attached to the flange 6 of the ring 5. Since this traveler 7 rotates at high speed on the flange 6 at around 10,000 to 20,000 RPM, it is worn. Therefore, it is necessary to replace the traveler 7 with an old one every 1-2 weeks.

The conventional traveler exchange method has been manual. That is, stop the operation of the ring spinning machine,
Remove the old traveler using the appropriate claw fittings and insert the new traveler. When inserting this new traveler, the traveler mounting device disclosed in Japanese Patent Publication No. 61-44975 is used as a tool.

[0005]

The conventional traveler exchange method uses a tool but is manually performed, and it takes a considerable amount of time even for a skilled person to exchange all the travelers of a ring spinning machine having a large number of weights. There was a problem that replacement personnel were required. Further, since the ring spinning machine is stopped and the traveler is replaced, the production efficiency of the machine is lowered due to the traveler replacement.

The present invention has been made in view of the above problems of the prior art, and an object of the present invention is to automatically change the traveler for each weight without stopping the ring spinning machine. The purpose is to provide a traveler exchange that will be carried out on a regular basis.

[0007]

A traveler exchange of the present invention is provided with an operating section which can run along a ring spinning machine.
In the operation section, a thread holding means for thread reaching the traveler, a rotation stopping means for each spindle shaft, a driving means for rotating the bobbin to move the traveler, a thread shifting lever for moving the thread to the ring, and a traveler exchanging means. Is provided.

[0008]

[Function] Holds the thread reaching the traveler, stops the spindle shaft of the specific weight, and moves the traveler to a predetermined position.
By moving the yarns before and after the traveler to the ring and replacing the old and new travelers, the traveler is replaced while the ring spinning machine is in operation.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a side view of an operation portion of a traveler exchange, FIG.
FIG. 3 is a top view of the first operating portion of the traveler exchange, and FIG. 3 is a diagram showing the entire traveler exchange. First, the whole traveler exchange will be described with reference to FIG. 3, and then the essential parts thereof will be described.

FIG. 3A is a side view and FIG. 3B is a front view. In the figure, the traveler exchange comprises a trolley unit 12 that supports the operation unit 11, and a power / control trolley 13 that is connected to the trolley unit 12. The trolley | bogie part 12 has the base 43 to which the wheels 41 and 42 with respect to the rail 10 of the ring spinning machine were attached, and the leaf spring 44 planted in the base 43.
It consists of The operating portion 11 is connected via the leaf spring 44.
Is supported. The operation unit 11 includes a first operation unit 11 a supported by a guide rod 45 via a linear bearing and the like so as to be able to move up and down, a second operation unit 11 b fixed on the upper side of the guide rod 45, and a lower side of the guide rod 45. And a third operation portion 11c fixed to the. A pulley 47 is attached above the guide rod 45, and a counterweight 49 for the first operating portion 11 a is suspended via a wire 48. Therefore, the first operation portion 11a can follow the vertical movement of the stroke section L of the ring rail 4 with a small external force. In addition, this counter weight 4
Instead of 9, a compression spring 46 shown by a chain double-dashed line can be used.

Further, the first operating portion 11a has wheels 50 arranged at an angle of 45 ° which roll on the corners of the ring rail 4. A magnet is fitted into the outer peripheral recess of the wheel 50, and the magnet is attracted to the corner of the ring rail 4,
Are rotationally driven by the motor 51. Then, it is positioned on the ring of the ring rail 4 by a positioning mechanism described below.

Returning to FIG. 3, the power supply / control carriage 13 connected to the carriage unit 12 has wheels 52 for traveling on the floor and is capable of following traveling. The power / control carriage 13 and the base 43 of the carriage unit 12 are connected via a link 53. The power supply / control carriage 13 is usually equipped with a lead storage battery and has a weight two to three times as large as that of the operation unit 11. Therefore, the power supply / control carriage 13 can also be separated from the operation unit 11 to run on the floor.

The mounting and running of the above-mentioned traveler exchange on the ring spinning frame will be described below. In FIG. 3, when the link 53 is raised and the base 43 and the power supply / control carriage 13 are hooked, the wheels 52 of the power supply / control carriage 13 are
The entire traveler exchange can be carried by. Therefore, the operator transports the traveler exchange machine to the side of the ring spinning machine that needs the traveler exchange. Then, the link 53 is lowered, and the wheels 41 and 42 are placed on the rail 10. By the way, the ring rail 4 of the spinning machine has a slow speed (1 to 2 cm per second) in the section of the stroke L during operation.
Is moving up and down. Therefore, the operator operates the first operation unit 1
The height is adjusted while moving 1a up and down to adsorb the wheel 50 to the corner of the ring rail 4. At this time, the height can be easily adjusted by the counterweight 49, and an excessive load moment does not act on the ring rail 4. The counterweight 49 is preferably adjusted so as to apply a slight downward load to the ring rail 4. This is because, in general, the ring rail 4 has a structure that it can be removed by an upward force. Further, it is only necessary to place the first operation portion 11a at a predetermined position by the magnet-equipped wheel 50 of FIG. 3, and it is possible to easily attach / detach to / from the ring rail 4. At this time, since the heaviest power source / control carriage 13 is separated from the operation unit 11, the operation is easy.

When the ring is replaced, the wheels 50 are rotated by the motor 51 shown in FIG.
1 is capable of traveling for each array pitch P of the rings 5 of the ring rail 4. The traveling of the traveling unit 11 is transmitted to the base 43 via the plate spring 44 and further transmitted to the power supply / control carriage 13 via the link 53, so that the entire traveler exchange machine travels. In addition, the presence of the leaf spring 44 enables the operating portion 11 to be slightly moved, and the positioning of the operating portion 11 with respect to the ring 5 can be performed with a small force. That is, the operation section 11 is separated via the leaf springs 44, and the positioning mechanism described below is used to quickly determine the position of the operation section 11. In addition,
A motor for driving the wheels 52 of the power supply control unit 13 is separately provided, the stress sensor 44a is attached to the leaf spring 44, and when a certain load is applied to the leaf spring 44, the power supply control unit 13 also self-propels and follows. it can.

Next, the above-mentioned first operating portion 11a and second
Each device provided in the operation unit 11b and the third operation unit 11c will be described. As shown in FIGS. 1 and 2, a positioning plate 16, a thread shifting lever 21 and a first operating portion 11a are provided.
Traveler removal device 22 and traveler insertion device 2
3 and a collection box 15 are provided. It should be noted that these devices, except for the collection box, are operated in a predetermined order by a common drive source.

In FIG. 1, a yarn holding device 17 is provided on the second operating portion 11b. In addition, the third operation unit 11c
Further, a roller 18 (driving means for rotating the bobbin to move the traveler) which can freely contact the lower side of the bobbin 2, and a knee brake 1 for stopping the rotation of each spindle shaft 1 and slipping.
A lever 19 (rotation stopping means) for operating a is provided. By the way, some ring spinning machines have a drive motor on each spindle shaft. In this case, a start / stop switch (rotation stop means) is provided near each spindle axis.
Therefore, the third operating portion 11c is provided with an operating rod for the start / stop switch. Here, the lever 19 stops the rotation of the spindle shaft 1 and enables the traveler exchange. In addition, the roller 18 rotates the bobbin 2 in the stopped state, moves the traveler 7 on the ring 5,
It is for setting a predetermined position. A brake device for stopping the rotation of each spindle shaft 1 or the yarn supplying bobbin 2 may be provided in the third operating portion 11c.

Next, the yarn holding device 1 of the second operating portion 11b
The structure and operation of 7 will be described with reference to FIG. A U-shaped hooking member 61 is pivotally supported at the tip of the arm 60, and is connected to a motor 63 via a clutch 62. Arm 60
Moves to the yarn path and moves laterally further to the hook member 6
The yarn Y is hooked on 1, the clutch 62 is turned on, and the hook member 61 is rotated. Since the twist is not transmitted to the yarn upstream of the hooking member 61, the yarn is immediately cut and the yarn end is sucked into the suction pipe 108. The yarn downstream of the hooking member 61 is wound up (when the bobbin is rotating, the yarn can be pulled out), and is stored and held in the hooking member 61. Then, when the clutch 62 is turned off, the clutch 62 slips, and the hooking member 61 stops in the state where a low torque rotational moment is applied. As the ring rail (not shown) slowly moves up and down, the yarn Y is wound up or unwound from the hooking member 61.
The amount of yarn stored and held in the hooking member 61 is set to an amount commensurate with the amount of delivery for operating the yarn shifting lever and the amount of delivery of the bobbin for moving the traveler, which will be described later. Therefore, the rotation speed of the motor 63 is controlled. The yarn holding device 17 also functions as a yarn joining member. When the traveler exchange is completed, the arm 60 advances in the direction, and further moves laterally, the hook member 6
The yarn Y fed from No. 1 is carried between the front rollers 107 and spliced. As shown in the figure, the front rollers 107 are arranged on the left and right sides of the cradle arm 109, and the lateral movement in the direction of the yarn holding device 17 can be operated on the opposite side.

The yarn holding device can be used as a combination of the tensor 20 and the clip 24 as shown in FIG. FIG. 5A shows a state before the operation, and FIG. 5B shows a state during the operation. As shown in (a), first, the yarn Y is sandwiched and held by the clip 24. Then, after stopping the rotation of the spindle shaft 1, the roller 18 reverses the yarn supplying bobbin 2 to feed the yarn and the tenser 20 stores the yarn. The tenser 20 is composed of a pair of combs 31 and 32 that can be meshed with each other. The comb 31 has three claws 31a, and the comb 32 has two claws 32a.
have. When the tenser 20 advances in the direction from the retracted position, the yarn Y is located between the claws 31a and 32a. Then, when the claws 31a and 32a are engaged with each other in the direction to be in the same state (b), the yarn Y becomes zigzag and the yarn Y is stored. Further, a detection piece 26a is attached to the base of the tensor 20, and the limit switch 26 detects the amount of meshing of the combs 31 and 32 to detect whether or not a sufficient amount of yarn has been accumulated. In addition, as shown in FIG.
Is capable of carrying the yarn to the front roller 107.

Next, the positioning plate 1 of the first operating portion 11a
6 will be described in detail. As shown in FIG. 2 (a), the plate has a semi-circular portion 16 a that fits under the ring 5.
By pushing the positioning member 16 toward the ring 5, the position of each device provided in the operation unit 11 with respect to the ring 5 is determined. That is, as shown in FIG. 2B, the ring 5 has a flange 6 into which the traveler 7 is attached and a mounting flange 5a for the ring rail 4, and the positioning member 1 is attached to the mounting flange 5a.
The semicircular portion 16a of 6 is fitted.

6A and 6B are views showing the structure and operation of the thread shifting lever. FIG. 6A is a top view, FIG. 6B is a sectional view of a ring, and FIGS. 6C and 6D are thread shifting state diagrams. is there. In the same (a), the yarn pulling lever 21 is composed of a pair of levers 33 and 34, and hook portions 33a and 34a are formed at the tips thereof. With respect to the yarn Y1 above the traveler 7, the hooking portion 33b of the lever 34 moves from the top to the bottom while moving to the position C on the outer periphery of the ring 5. For the yarn Y2 below the traveler 7, the hook 33a of the lever 33
Goes down, hangs the thread Y2, and moves to the position A on the inner circumference of the ring 5. Prior to the operation of the yarn pulling lever 21, a traveler removing device 22 described below comes to a predetermined position, and its arm serves as a stopper to stop the traveler 7 traveling with the rotation of the bobbin at a predetermined position. Further, the yarn necessary for the operation of the yarn pulling lever is delivered from the yarn holding device described above. That is, as shown in (a), when the hook portion 33a moves the lower thread Y2 toward the inside of the flange 6 and the hook portion 33b moves the upper thread Y1 toward the outside of the flange 6, the thread Y is moved to the upper surface of the flange 6. Holds diagonally across. In this case, A of the hook 33a
The positions of the points, the point C of the hook portion 33b, and the intermediate point B are located at the same position (b) with respect to the flange 6. Therefore, when the old traveler 7 is removed at the position of point B of the same (a) or the new traveler 7 is inserted at the same time or after that, the yarn Y is hooked on the traveler 7. By the way, it is preferable to prevent the yarn Y from being carried together with the old traveler by a procedure in which the traveler removing device removes the old traveler after the traveler inserting device inserts the new traveler. in this case,
Two travelers, old and new, need to be located in the transverse section AC. Therefore, when the yarn is held so that the starting point A of the cross section A-C substantially overlaps with the tangent of the inner circumferential circle of the ring 5,
The transverse section AC can be made the longest. The cross section A-C becomes shorter as it deviates from the tangent line of the inner circle. For example, if the width of the crossing portion in the longitudinal direction of the ring 5 is smaller than the width of the traveler 7 as shown in (c), the attachment and removal of the traveler 7 may fail. However, if the width of the crossing portion in the longitudinal direction of the ring 5 is larger than the width of the traveler 7 as shown in (d), the traveler 7 can be reliably inserted and removed.

FIG. 7 is a view showing the structure and operation of the traveler removing device. As shown in (a) and (b), the traveler removing device 22 is one in which a claw 35a as a removing member for the traveler 7 is formed at the tip of an arm 35, and the arm 35 rotates with respect to the tubular body 39. Is possible. A pressing plate 40 as a fixing member is attached to the cylindrical body 39, and the claw 3 of the arm 35 is attached.
When 5a rotates in the direction, the tip 40a of the pressing plate 40
The traveler 7 can be held by the claws 35a. Further, the entire tubular body 39 is capable of advancing in the direction. Further, the arm 35 also serves as a stopper for the traveler 7,
When the roller 18 rotates and the thread is wound, the traveler 7 travels as shown in (b), the pressing plate 40 and the claw 35a.
Then, it hits the arm 35 and stops. And
When the arm 35 pivots in the direction, the traveler 7 is taken in and lifted from the flange 6 of the ring as shown in FIG. Further, when the tubular body 39 advances in the direction, the traveler 7 is disengaged from the ring flange 6 as shown in FIG. When the traveler removing device 22 moves forward to a predetermined position, if the traveler 7 exists at a position where it comes into contact with the traveler removing device 22, the traveler removal fails. In that case, the roller 18 of FIG. 1 is slightly rotated and the above-described series of operations is repeated again.

FIG. 8 is a diagram showing the structure and operation of the traveler insertion device, FIG. 8 (a) is an overall perspective view, and FIG. 8 (b) is an enlarged view of essential parts. In the same (a), the traveler insertion device 2
3 is an arm 36 in which a large number of travelers 7 are fitted.
And a cutout member 37 and a leaf spring 38. By moving in the direction of the cutting member 37, one of the travelers 7 is pressed and fed to the tip. As shown in (b), the tip 36a of the arm 36 is bent, and the traveler is held in a vertical C-shape. Then, when the entire traveler inserting device 23 retracts in the direction, the traveler 7 is attached to the ring flange 6. At the same time, the leaf spring 38 shown in (a) causes the free traveler 7 to be repelled toward the back in the thickness direction of the paper.

Next, a traveler exchange procedure by the above-mentioned traveler exchange will be described. In FIG. 1, first,
The wheels of the first operating portion 11a rotate and come to a predetermined position with respect to the ring 5. Then, the positioning plate 16 advances and fits into the ring 5, and the entire operation portion 11 is positioned.
Next, the yarn holding device 17 of the second operating portion 11b advances into the yarn path between the snell wire 8 and the front roller 107, and the hooking portion 61 hooks the yarn Y to rotate and stores and holds a predetermined amount of yarn. During this time, the spindle shaft 1 is rotating at high speed. Next, the lever 19 of the third operating portion 11c is raised,
The knee brake 1a is operated to stop the rotation of the spindle shaft 1. The belt 3 slips with respect to the spindle shaft 1 on which the brake is applied, and the spindle shafts of the other weights rotate at high speed. Next, as shown in FIG. 7B, the arm 35 of the traveler removing device 22 advances to a predetermined position on the flange 6. Next, when the roller 18 of FIG. 1 rotates, the yarn Y stored in the yarn holding device 17 is paid out, the yarn is wound, and the traveler 7 moves along the ring 5 (the roller 18 then returns to the avoidance position). ). Then, the traveler 7 is locked by the claw 35a of the arm 35 shown in FIG. 7A, and the traveling of the traveler 7 is stopped at a predetermined position. At this time, the roller 18 is rotated by a predetermined number by a preset control device. Next,
The yarn shifting lever 21 further draws the yarn stored in the yarn holding device, and brings the yarn Y toward the ring 5 from above. As a result, as shown in FIG.
It is held at a position along the ring 5 that does not hinder the removal and insertion of the.

Next, as shown in FIG. 7B, when the arm 35 rotates in the direction and the pawl 35a and the tip 40a take in the traveler 7, when the arm 35 advances in the direction, the traveler 7 moves to the direction shown in FIG. It comes off the flange 6 of the ring as shown at 7 (c). The disengaged traveler 7 is still held by the claw 35a and the tip 40a, and the traveler 7 is removed when the traveler removing device 22 exits.
Is brought to the top of the collection box 15 of the claw 35a and the tip 4
The traveler 7 is designed to be dropped into the collection boss 15 by separating 0a. Next, as shown in FIG. 8A, the traveler 7 held in the C-shape by the arm 36 advances to a predetermined position with respect to the flange 6 of the ring, and the whole retracts in the direction. The outer end of the traveler 7 is stretched and attached to the flange 6 while the inner end of the traveler 7 is hooked on the flange 6.

After the traveler has been inserted by the traveler inserting device, the yarn pulling lever 21 shown in FIG. 6 returns to the original retracted position, and the slack of the yarn is stored again in the yarn holding device 17 shown in FIG. Then, as shown in FIG. 4, the hooking member 61 carries the yarn Y between the front rollers in a stretched state,
Thread splicing is performed. Simultaneously with this yarn splicing, the lever 19 of FIG. 1 releases the knee brake 1a, the spindle shaft 1 rotates, and normal operation is resumed. In this way, the exchange of travelers, which was previously thought to be done only manually, is completely automated. Moreover, although the old traveler was scattered by the manual exchange, the traveler exchange machine is equipped with an old traveler collection box, so that it is not necessary to collect the traveler around the ring spinning machine. Moreover, since the traveler is exchanged for each spindle shaft during the operation of the ring spinning frame, the operating efficiency of the ring spinning frame does not decrease.

In the above description, for the sake of easy understanding, the steps of moving the traveler to a predetermined position, the thread pulling step, the traveler removing step, and the traveler inserting step have been described in this order. The steps are usually performed in parallel. Also, reverse the order of the traveler insertion process and the traveler removal process.
Appropriate changes are possible.

[0027]

The traveler exchanger of the present invention is provided with an operating section that can travel along the ring spinning machine, and in the operating section, means for holding the thread that reaches the traveler, and means for stopping the rotation of each spindle shaft. A drive means for rotating the bobbin to move the traveler, a thread shifting lever for shifting the thread to the ring, and a traveler exchanging means are provided to hold the thread, store the thread, and stop the spindle shaft of the specific weight. By moving the traveler to a predetermined position, moving the yarns before and after the traveler to the ring and replacing the old and new travelers, the traveler can be replaced while the ring spinning machine is in operation, resulting in lower machine production efficiency. It is possible to automatically change the traveler without having to do so.

[Brief description of drawings]

FIG. 1 is a side view of an operation unit of a traveler exchange.

FIG. 2 is a top view of a second operation unit of the traveler exchange.

FIG. 3 is a diagram showing an entire traveler exchange.

FIG. 4 is a perspective view showing the structure and operation of the yarn holding device.

FIG. 5 is a diagram showing another embodiment of the yarn holding device.

FIG. 6 is a diagram showing a structure and an operation of a yarn pulling lever.

FIG. 7 is a view showing the structure and operation of the traveler removing device.

FIG. 8 is a view showing the structure and operation of the traveler insertion device.

FIG. 9 is a side view of the ring spinning machine.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Spindle shaft 5 Ring 7 Traveler 11 Operation part 17 Thread holding device (thread holding means) 18 Roller (driving means) 19 Lever (rotation stop means) 22 Traveler removal device (traveler exchange means) 23 Traveler insertion device (traveler exchange means) )

Claims (1)

[Claims] 1. An operating section that can travel along a ring spinning machine is provided, and in the operating section, a yarn holding means for reaching a traveler, a rotation stopping means for each spindle shaft, and a bobbin are rotated to move the traveler. A traveler exchanging machine provided with a drive means, a thread shifting lever for pulling a thread to a ring, and a traveler exchanging means.