JPH0748694Y2 - Traveler exchange - Google Patents

Description

[Detailed description of the device]

[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.

[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. A bobbin 2 is attached to a spindle 1 having a bearing (not shown). The spindle 1 is rotated by a belt 3 at a high speed of usually about 10,000 to 20,000 RPM. The belt 3 is wound around a spindle 1 of 4 weights (a total of 2 weights on the front side and 2 weights on the back side), and the spindle 1 is rotationally driven by a drive pulley (not shown). However, idling is possible by applying a force to the spindle 1 when stopped. Further, the ring rail 4 moves up and down along the longitudinal direction of the bobbin 2, and the bobbin 2 in the inserted state is positioned with respect to the ring 5 fixed to the ring rail 4. The upper end of the ring 5 is a flange 6, and a traveler 7 is attached to the flange 6. The yarn Y comprises a snell wire 8 and a balloon control ring 9
Then, it is wound up on the bobbin 2 via 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 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, the old traveler is removed using an appropriate claw fitting, and a new traveler is inserted. As a tool for inserting this new traveler
The traveler mounting device disclosed in Japanese Patent No. 44975 may be used.

[0005]

The conventional traveler exchange method uses tools but is manually performed, and it takes a considerable amount of time even for a skilled person to exchange all the travelers of the ring spinning machine having a large number of weights. Therefore, personnel for this traveler exchange are required.

Therefore, there has been a demand for a traveler exchange that automates the traveler exchange. To automate the traveler change, the bobbin is reversed to loosen the thread on the traveler. The loose thread is absorbed by the tensor. Rotate the bobbin forward to run the traveler and hook it on the traveler removal device. Pull the thread onto the ring with the thread shifting lever. After inserting the new traveler, remove the old traveler. Many operations are required, such as rotating the bobbin forward and tensioning loose threads. When this operation is continuously performed by one operation unit, the cycle time is inevitably long. Therefore, in order to improve the operating efficiency of the traveler exchange, the first station for loosening the threads hanging on the traveler in advance and the second station for the traveler exchange are installed side by side in the operation part, and the thread of the weight before the one is installed. It is conceivable that the slackening work and the traveler exchange will be performed simultaneously.

However, if the yarn of the preceding weight is loosened in advance at the first station, the loosened yarn is likely to be loosened or loosened on the downstream side of the traveler between the traveler and the bobbin. In this case, there is a problem that the yarn may come off from the traveler, and the traveler exchange may fail. Also, the chatter generated on the downstream side of the traveler may not be removed by the tensor of the second station.

The present invention has been made in view of the above problems, and an object of the present invention is to perform traveler exchange with the first station in which the thread hooked on the traveler is loosened in advance in the operating portion. Even if it is a traveler exchange machine in which the second station is installed side by side and the thread of the previous weight is loosened and the traveler is exchanged at the same time, there is no fear of the traveler exchange failure due to chattering or looseness. To do.

[0009]

A traveler exchanger of the present invention comprises a first station for slackening a thread hung on a traveler of a ring spinning machine, and a second station provided with a thread shifting lever, a traveler removing device and a traveler inserting device. A traveler exchanger having a station and an operating section arranged side by side, wherein the first station is provided with a tensor for absorbing slack of yarn on the upstream side of the traveler.

[0010]

If the first operating portion is provided with a tensor that absorbs the looseness of the yarn on the upstream side of the traveler, even if the tenser releases the yarn, the looseness of the loosened yarn can be eliminated on the upstream side of the traveler. However, it does not occur on the downstream side of the traveler, which cannot be eliminated.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a front view of an operating portion of a traveler exchange, FIG.
Is a top view of the operation part of the traveler exchange, and FIG. 3 is a view showing the whole traveler exchange. First, the whole traveler exchange will be described with reference to FIG. 3, and then the operating portion 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.
And a guide rod 45 erected on the leaf spring 44. The operation unit 11 is supported by the guide rod 45 via a linear bearing or the like so as to be able to move up and down. A pulley 47 is attached to the tip of the guide rod 45, and a counterweight 49 for the operation unit 11 is suspended via a wire 48. A compression spring 62 shown by a two-dot chain line can be used instead of the counter weight 49.

Further, the operating portion 11 has wheels 50 arranged at an angle of 45 ° which roll on the corners of the ring rail 4. A magnet is fitted in the outer peripheral recess of the wheel 50, and the magnet is attracted to the corner of the ring rail 4, the wheel 50 is rotationally driven by the motor 51 or the link and the cam mechanism, and the operating portion 11 corresponds to the ring arrangement pitch P. Drive as fast as you want. Then, it is positioned on the ring of the ring rail 4 by a positioning mechanism described below.

Power supply / control carriage 1 connected to the carriage unit 12
The reference numeral 3 has wheels 52 for traveling on the floor surface 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. This power supply
The control carriage 13 is usually equipped with a lead storage battery, and the operation unit 1
Since the weight is 2 to 3 times as large as that of 1, the power / control carriage 13 is also detached so that it can run on the floor.

The mounting and running of the above-mentioned traveler exchange on the ring spinning machine 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 moves up and down in the section of the stroke L during operation. Therefore, when the spinning machine stops, the ring rail 4 stops at an arbitrary height within the stroke L. Therefore, the operator adjusts the height while moving the operation unit 11 up and down to adsorb the wheels 50 to the corners of the ring rail 4.

When replacing the ring, the motor 5
The wheel 50 rotates a predetermined amount due to the operation of the operation unit 11
It is possible for the ring rail 4 to travel for each array pitch P of the rings 5. 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 allows the operating portion 11 to be slightly moved, and the ring 5 of the operating portion 11 is moved.
Positioning with respect to is made possible with a small force.

As shown in FIGS. 1 and 2, the operating section 11 shown in FIG. 3 is composed of a first station S1, a second station S2, and a second station S3 arranged in parallel. The first station S1 is provided with a positioning plate 16, a roller 17 that can be brought into and out of contact with the bobbin 2, and a tensor 28 that is a main part of the present invention. At the second station S2, a positioning plate 16, a roller 18 that can be brought into and out of contact with the bobbin 2, a tenser 20, and a thread shifting lever 21 are provided.
1, a traveler removal device 22, a traveler insertion device 23, and a collection box 15. Third
At the station S3, there is a roller 1 which can freely move in and out of the bobbin
8 and a slack eliminating device 24 are provided. The positioning plate 16, the tensors 20 and 28, the thread shifting lever 21, the traveler removing device 22, the traveler inserting device 23, and the slack eliminating device 24, excluding the rollers 17, 18 and 19, are cams mounted on a common cam shaft. It is designed to work in rows.

Positioning plate 16 of the first station S1
2A is a plate having a semi-circular portion 16a fitted below the ring 5 as shown in FIG. Positioning member 16
Is pushed 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 on which the traveler 7 is inserted and a mounting flange 5a for the ring rail 4, and a semicircular portion 16a of the positioning member 16 for the mounting flange 5a.
Is designed to fit in. As described above, when the positioning plate 16 is provided in the first station S1, the positioning plate 16 cannot be used when the traveler is exchanged for the ring at the end of the ring rail 4. Therefore, another positioning mechanism is provided for the ring of the terminal. The positioning plate 16 may be a positioning mechanism provided in the second station S2 of the operation unit 11.

Returning to FIG. 2, the rollers 17, 18, and 19 are 3
The bobbin 2 can be brought into contact with the side surface of the bobbin 2 and can be separately rotated by a motor. Assuming that the operation unit 11 performs the traveler replacement work from right to left in the drawing, the roller 17 of the first station S1 reverses the bobbin 2 to loosen the yarn and store the yarn in the tenser 28. Second station S2
The roller 18 rotates the bobbin 2 in the normal direction, and moves the traveler 7 to a predetermined position (the traveler removing device described below serves as a stopper to determine the predetermined position) while winding the yarn accumulated in the tenser 20. The roller 19 of the third station S3 rotates the bobbin 2 in the normal direction to remove the looseness of the yarn and stretches the yarn.

4A and 4B are views showing the structure and operation of the tensor 28 of the first station and the tensor 20 of the second station S2. FIG. 4A shows the state before the operation and FIG. 4B shows the state after the operation. . As shown in FIG. 4A, the tensors 20 and 28 are 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. ing. When the tenser 20 advances in the direction from the retracted position, the yarn Y is located between the claws 31a and 32a. And
When the claws 31a and 32a are engaged with each other in the direction and become the same state (b), the yarn Y becomes zigzag, the slack is absorbed, and the yarn Y is stored. The tenser 28 of the first station S1 has a meshing stroke capable of absorbing all the yarn loosened by the roller 17 so as to prevent the yarn on the downstream side between the traveler 7 and the bobbin 2 from generating chattering. The tensor 28 releases the yarn Y before the operating portion 11 travels one pitch. The yarn Y will be twisted when released,
The position is on the upstream side of the traveler, and the tension is eliminated by the tensor 20 of the second station S2 to absorb all the slack of the yarn, so that the yarn Y can be given a predetermined tension in a range in which the yarn is not broken after meshing. Has become. In particular, in the tenser 28 using the combs 31 and 32 that can be freely engaged with each other, the yarn Y
Since the zigzag is absorbed, the loosened yarn Y disperses along the zigzag and many small crimps occur. Since the small tension is more easily released by tension, the yarn Y is reliably absorbed by the tensor 20 of the second station S2.

Next, the tensor 20 of the second station S2
The purpose is to reliably hook the thread on the stretched thread by the thread shifting lever described below, and to pull the thread in the range of the thread Y that has been loosened in advance. Further, a detection piece 26a is attached to the base of the tensor 20, and the limit switch 26 can detect the thread tension. The operation of the limit switch 26 is as follows. First, the tenser 20 advances in the direction, and the claws 31a and 32a mesh in the direction.
Next, the limit switch 26 detects whether the tensor 20 has sufficient slack. If the slack amount of the yarn Y is insufficient (the operation of the yarn shifting lever described below becomes incomplete), the limit switch 26 will not be turned ON. When the looseness is insufficient, a roller (not shown) is reversed to feed the yarn from the yarn supplying bobbin. The limit switch 26 is turned on, and sufficient slack of the yarn Y is detected. Next, a roller (not shown) is normally rotated to wind the yarn around the yarn supplying bobbin so that the traveler is moved to a predetermined position. If the traveler stops at the specified position, the thread will be stretched, so limit switch 2
6 is turned off, the tension of the thread is detected, and it is confirmed that there is no hindrance to the next continuous operation. In addition, tensor 20, 2
Although the gate tensor using the pair of combs 31 and 32 has been described as the eighth embodiment, an air tensor that absorbs slack by sucking and calling air may be used. However, gate tensors are preferred because air tensors require an air source.

5A and 5B are views showing the structure and operation of the yarn pulling lever. FIG. 5A is a top view, and FIGS. 5B, 5C and 5D are state diagrams of the yarn. In FIG. 3A, 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. Hook 33
a moves the yarn Y2 downstream of the traveler 7 toward the inside of the flange 6, the hook 33b moves the yarn Y1 upstream of the traveler 7 toward the outside of the flange 6, and the yarn Y moves toward the flange 6
It is held so as to cross the upper surface of the diagonally. In this case, the positions of the yarns at the point A of the hooking portion 33a, the point C of the hooking portion 33b, and the point B in the middle thereof are at the positions shown in FIG. Therefore, at the same time when the traveler 7 is inserted and attached at the position of point B in FIG. 7A, 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, the two traveler, 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 cut portion A-C substantially overlaps with the tangent line of the inner circumferential circle of the ring 5, the cross cut portion A
-C can be the longest. The cross section A-C becomes shorter as it deviates from the tangent line of the inner circle. For example, when the width of the cross section in the longitudinal direction of the ring 5 is smaller than the width of the traveler 7 as shown in FIG. 7C, 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 FIG.
The traveler 7 is surely inserted and removed. Before the operation of the yarn pulling lever 21, the traveler removing device 22 described below comes to a predetermined position, and its arm 35 serves as a stopper to stop the traveler 7 traveling with the forward rotation of the roller 18 at a predetermined position. Keep it.

FIG. 6 is a view showing the structure and operation of the traveler removing device. As shown in FIGS. 7A and 7B, the traveler removing device 22 has a claw 35 a as a removing member for the traveler 7 formed at the tip of an arm 35, and the arm 35 is attached to the tubular body 39. It is possible to rotate. A holding plate 40 as a fixing member is attached to the tubular body 39, and when the claw 35a of the arm 35 rotates in the direction, the tip 40 of the holding plate 40 is moved.
The traveler 7 can be held by the a and the claw 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, and when the roller 18 in FIG. 2 is normally rotated and the yarn is wound, the traveler 7 moves as shown in FIG. Three
It enters between 5a, hits the arm 35, and stops. 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 moved as shown in FIG.
Comes off the flange 6 of the ring. 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. Therefore,
As shown in FIG. 2, the lever 27 made of an elastic material pushes the traveler 7 out of the contact position of the traveler removing device 22 by pushing the traveler.

7A and 7B are views showing the structure and operation of the traveler insertion device. FIG. 7A is an overall perspective view and FIG. 7B is an enlarged view of a main part. In FIG. 3A, the traveler insertion device 23 includes an arm 36 into which a large number of the travelers 7 are fitted, 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 FIG. 3B, 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 free traveler 7 is flipped off to the back side in the thickness direction of the paper by the leaf spring 38 shown in FIG.

FIG. 8 is a top view showing the structure and operation of the yarn slack eliminating device. The slack eliminating device 24 has an L-shaped lever 57.
A brush 58 is planted in one of the arms, and the posture shown in the drawing is maintained by a spring 59 and a stopper 60 for the other arm. A limit switch 61 is provided on the other arm of the lever 57. When the bobbin rotates in the normal direction by the roller 19 in FIG. 1, the loose thread is wound, but when the thread is stretched, the traveler 7 runs along the ring 5. The traveler 7 thrusts into the brush 58, swings the lever 57 counterclockwise, and moves the limit switch 61.
Is activated, it is confirmed that the thread is stretched, and the rotation of the roller is stopped. As described above, if the thread is not stretched after the traveler 7 is replaced, thread breakage occurs at the start of the ring spinning machine.

Next, a traveler exchange method by the above-mentioned traveler exchange will be described. In FIG. 1, the operation unit 11 has three stations S1, S2, S3, and the first station S1 prevents the yarn from slackening and prevents the chattering from occurring on the downstream side of the traveler.
The traveler is exchanged at 2, the threads are shared at the third station S3, and the work is performed all at once to shorten the cycle time. At the first station S1, the positioning plate 16 advances and fits into the ring 5, and the operating portion 11 is positioned. Next, the roller 17 advances to reverse the bobbin 2 and loosen the yarn. This slack of the yarn is absorbed by the tensor 28. Then, after the tensor 28 releases the yarn, the operating portion 11 travels one pitch P to the left side in the drawing. Next, the yarn Y is again zigzag and stored by the tensor 20 of the second station S2, and the yarn Y can be fed or fed with a predetermined yarn tension.
At this time, since the bill is not present downstream of the traveler 7, all the loosened yarns are stored in the tensor 20. Next, as shown in FIG. 6A, the arm 35 of the traveler removing device 22 advances to a predetermined position on the flange 6. Next, when the roller 18 shown in FIG. 1 rotates in the forward direction, the yarn Y stored in the tenser is delivered, and the traveler 7 travels along the ring 5 in the clockwise direction as the yarn rotates. The pawl 35a of the arm 35 shown in FIG.
Is locked, and the traveling of the traveler 7 stops at a predetermined position. At this time, the roller 18 is rotated by a predetermined number by a preset control device. Next,
The yarn pulling lever 21 shown in FIG. 5 further pulls the yarn stored in the tensor and pulls the yarn Y from above so as to cross the flange 6 of the ring 5. As a result, as shown in FIG. 5A, the yarn Y is held at a position where it does not hinder the insertion and removal of the traveler 7.

Next, as shown in FIG. 7 (a), 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, and the leaf spring 38 is used to move the traveler 7
Is blown away in the thickness direction of the paper. Next, FIG.
As shown in (b), when the arm 35 rotates in the direction and the pawl 35a and the tip 40a take in the traveler 7, the arm 35 advances in the direction.
Comes off the flange 6 of the ring as shown in FIG. 6 (c). The disengaged traveler 7 is still held by the pawl 35a and the tip 40a, and when the traveler removing device 22 exits, the traveler 7 is carried to the top of the collection box 15 in FIG. Are dropped into the collection boss 15.

After that, the yarn pulling lever 21 of FIG. 5 returns to the original retracted position, the slack of the yarn is stored again in the tenser 20 of FIG. 1, and then the tenser 20 is released. Next, the released tensor 20 returns to the original retracted position, and the operation unit 11 is set to 1
Drive only pitch P to the left in the drawing. Next, the roller 19
When the roller 19 stops when the slack eliminating device 24 in FIG. 8 detects the state in which the yarn is normally rotated and the yarn is stretched, the slack in the yarn disappears and the original state is restored. In this way, the exchange of travelers, which was previously thought to be done only manually, is completely automated. Further, although the old traveler was scattered by the manual replacement, the traveler changer is equipped with an old traveler collection box, so that it is not necessary to clean the area around the ring spinning machine.

[0029]

The traveler exchanging machine of the present invention includes the first station for slackening the thread hung on the traveler of the ring spinning machine, and the second station equipped with the thread shifting lever, the traveler removing device and the traveler inserting device. A traveler exchanger having an operating portion provided, wherein the first station is provided with a tensor for absorbing slack in the yarn on the upstream side of the traveler, and the slackened yarn is released even if the tenser releases the yarn. Since there is no chattering on the upstream side of the traveler and no chattering on the downstream side of the traveler, the thread does not come off the traveler due to the chattering or looseness on the downstream side of the traveler, and the traveler does not The exchange can be reliably performed.

[Brief description of drawings]

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

FIG. 2 is a top view of an 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 tensor.

FIG. 5 is a diagram showing a structure and an operation of a yarn pulling lever.

FIG. 6 is a view showing the structure and operation of the traveler removing device.

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

FIG. 8 is a diagram showing the structure and operation of a yarn tension sensor.

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

[Explanation of symbols]

 11 Operation Unit 21 Thread Pull Lever 22 Traveler Removal Device 23 Traveler Insertion Device 28 Tensor S1 First Station S2 Second Station

Claims (1)

[Scope of utility model registration request] 1. A first station for loosening a thread hung on a traveler of a ring spinning machine, and a second station provided with a thread shifting lever, a traveler removing device and a traveler inserting device.
A traveler exchanger having a station and an operating section arranged side by side, wherein the first station is provided with a tensor for absorbing slack of the yarn on the upstream side of the traveler.