JPH0620477U - Traveler exchange - Google Patents

Abstract

(57) [Abstract] [Purpose] The first station for loosening the thread hanging on the traveler in advance and the second station for exchanging the traveler are installed side by side on the operation part, and the thread of the weight before one is loosened. (EN) Provided is a traveler exchange machine in which work and traveler exchange are performed at the same time, and the traveler exchange machine is free from fear of failure in traveler exchange due to looseness or looseness. [Structure] A first station S1 for loosening a thread hung on a traveler 7 of a ring spinning machine, a thread shifting lever 21,
Traveler removal device 22 and traveler insertion device 2
2. A traveler exchanger having a second station provided with S3 and an operation section 11 in which S2 are arranged in parallel, wherein the first station S1 is provided with a tensor 28 for absorbing the looseness of the yarn on the upstream side of the traveler 7. .

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a traveler changer for automatically changing a traveler attached to a ring of a ring spinning machine.

[0002]

[Prior 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, usually around 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 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 the traveler 7 is attached to the flange 6. The yarn Y is wound around 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 and runs on the flange 6 of the ring 5 to impart twist to the yarn. There is a difference in the number of rotations 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 frictional resistance members for producing a difference in rotation speed, and at the same time, they are a traveling direction changing mechanism for twisting action to take-up action.

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

Conventional traveler replacement methods have been manual. That is, remove the old traveler and insert the new traveler using an appropriate claw tool. When inserting this new traveler, a traveler mounting device disclosed in Japanese Patent Publication No. 61-44975 may be used as a tool.

[0005]

[Problems to be solved by the device]

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

Therefore, a traveler exchange machine that automates the traveler exchange has been desired. 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, 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 increase 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 operating section. It is conceivable to loosen the threads and replace the traveler at the same time.

However, if the thread of the preceding weight is loosened in advance at the first station, the looseness and looseness of the loosened thread are likely to occur on the downstream side of the traveler between the traveler and the bobbin. In this case, there is a problem that the thread may come off from the traveler and the traveler exchange may fail. In addition, 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 such a problem, and an object thereof 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 a traveler exchange failure due to chattering or looseness. To do.

[0009]

[Means for Solving the Problems]

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

[0010]

[Action]

 If the first operation part is equipped 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 will occur on the upstream side of the traveler that can be eliminated. It does not occur on the downstream side of the traveler, which cannot be eliminated.

[0011]

【Example】

 Embodiments of the present invention will be described below with reference to the drawings. 1 is a front view of the operation part of the traveler exchange, FIG. 2 is a top view of the operation part of the traveler exchange, and FIG. 3 is a diagram showing the whole of the 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 connected to the trolley unit 12. The dolly 12 includes a base 43 to which the wheels 41 and 42 of the rail 10 of the ring spinning machine are attached, a leaf spring 44 planted in the base 43, and a guide rod erected on the leaf spring 44. It consists of 45. The operating portion 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. Further, 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 operation portion 11 has wheels 50 arranged at an angle of 45 ° that roll on the corners of the ring rail 4. A magnet is fitted into the outer peripheral recess of the wheel 50, which is attracted to the corner of the ring rail 4, the wheel 50 is rotationally driven by the motor 51 or the link and 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 the positioning mechanism described below.

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-acid battery and has a weight two to three times as large as that of the operating portion 11. Therefore, the power supply / control carriage 13 can 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 machine will be described below. In FIG. 3, when the link 53 is raised and the base 43 and the power / control carriage 13 are hooked, the wheels 52 of the power / control carriage 13 can carry the entire traveler exchange. Therefore, the operator transports the traveler exchange machine to the side of the ring spinning machine that requires the traveler exchange. Then, the link 53 is lowered to put the wheels 41 and 42 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 is stopped, 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 wheel 50 to the corner of the ring rail 4.

When the ring is replaced, the wheels 50 are rotated by the motor 51 or the like in a predetermined manner, and the operation unit 11 can travel at the arrangement 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 leaf spring 44 and further to the power supply / control carriage 13 via the link 53, and the entire traveler exchange is traveling. Further, 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.

As shown in FIGS. 1 and 2, the operation unit 11 of FIG. 3 described above includes a first station S1, a second station S2, and a second station S3 arranged in parallel. ing. 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. The second station S2 includes a positioning plate 16, a roller 18 that can be brought into and out of contact with the bobbin 2, a sensor 20, a thread shifting lever 21, a traveler removing device 22, a traveler inserting device 23, and a collection box. And 15 are provided. The third station S3 is provided with a roller 18 that can freely move in and out of the bobbin 2 and a slack eliminating device 24. The positioning plate 16, the tensors 20, 28, the thread shifting lever 21, the traveler removing device 22, the traveler inserting device 23, and the slack eliminating device 24 except for the rollers 17, 18, 19 are mounted on a common cam shaft. It is designed to work in rows.

As shown in FIG. 2A, the positioning plate 16 of the first station S1 is a plate having a semi-circular portion 16a fitted below 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 inserted and a mounting flange 5a for the ring rail 4, and a positioning member 16 for the mounting flange 5a. The semi-circular portion 16a of is fitted. 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 replaced with respect to 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 can be brought into contact with the side surfaces of the three bobbins 2 and can be independently rotated by a motor. Assuming that the operation portion 11 performs the traveler changing 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. The roller 18 of the second station S 2 rotates the bobbin 2 in the normal direction, winding the yarn accumulated in the tenser 20 and moving the traveler 7 to a predetermined position (the traveler removing device described below serves as a stopper to determine the predetermined position). To move. The roller 19 of the third station S3 rotates the bobbin 2 in the normal direction to remove the slack of the yarn and stretches the yarn.

FIG. 4 is a diagram 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 (a) of the figure, 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. 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, the slack is absorbed, and the yarn Y is stored. The tenser 28 of the first station S1 has a meshing stroke enough to absorb all the yarn loosened by the roller 17 and prevents 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 operation unit 11 travels in one-pitch. When the yarn Y is released, the yarn is twisted, but the position is on the upstream side of the traveler, and the tension is released by the tensor 20 of the second station S2 to absorb all the slack of the yarn, and the yarn breaks after meshing. The yarn Y can be applied with a predetermined tension in a range that does not occur. In particular, in the tensor 28 using the combs 31 and 32 that can be meshed with each other, the yarn Y is zigzag and is absorbed, and thus the released yarn Y has a small amount of small knitting due to the knitting being dispersed along the zigzag. Since the smaller burr is more easily released by the tension, the yarn Y is reliably absorbed by the tensor 20 of the second station S2.

Next, in the tensor 20 of the second station S2, the yarn pulling lever described below securely hooks the stretched yarn to pull the yarn in the range of the previously loosened yarn Y. It is a thing. 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 pulling lever, which will be described next, becomes incomplete), the limit switch 26 will not turn ON. If the slack is insufficient, the 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, the roller (not shown) is rotated in the forward direction to wind the yarn around the yarn supplying bobbin so that the traveler travels to a predetermined position. When the traveler stops at the predetermined position, the thread is stretched, so the limit switch 26 is turned off and the tension of the thread is detected, and it is confirmed that there is no hindrance to the next continuous operation. Although the gate tensor using the pair of combs 31 and 32 has been described as an example of the tensors 20 and 28, an air tensor that absorbs slack by sucking and calling air can also be used. However, a gate tensor is preferred because an air tensor requires an air source.

5A and 5B are views showing the structure and operation of the thread pulling lever. FIG. 5A is a top view and FIGS. 5B, 5C, and 5D are thread state diagrams. 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. The hook portion 33a moves the yarn Y2 downstream of the traveler 7 toward the inside of the flange 6, the hook portion 33b moves the yarn Y1 upstream of the traveler 7 toward the outside of the flange 6, and the yarn Y moves the upper surface of the flange 6 upward. It is held so that it crosses diagonally. In this case, the yarn positions at the point A of the hooking portion 33a, the point C of the hooking portion 33b, and the point B between them are at the positions shown in FIG. Therefore, when the traveler 7 is inserted and attached at the position of point B in FIG. 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, if the yarn is held so that the starting point A of the cross cut portion A-C substantially overlaps the tangent line of the inner circumferential circle of the ring 5, the cross cut portion AC can be made the longest. The cross section A-C becomes shorter as it deviates from the tangent to 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 FIG. 7C, the attachment and removal of the traveler 7 may fail. However, if the width of the transverse portion in the longitudinal direction of the ring 5 is larger than the width of the traveler 7 as shown in FIG. 7D, the traveler 7 can be securely inserted and removed. Prior to the operation of the yarn pulling lever 21, the traveler removing device 22 described below comes to a predetermined position, and the arm 35 thereof serves as a stopper to bring the traveler 7 traveling with the forward rotation of the roller 18 to a predetermined position. Stop it.

FIG. 6 is a view showing the structure and operation of the traveler removing device. As shown in (a) and (b) of the same figure, the traveler removing device 22 has a claw 35a as a detaching 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 pressing plate 40 as a fixing member is attached to the cylindrical body 39, and when the claw 35a of the arm 35 rotates in the direction, the tip end 40a of the pressing plate 40 and the claw 35a can take in and hold the traveler 7. It is like this. Further, the entire tubular body 39 can be advanced 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. It enters between 35a and hits the arm 35 and stops. When the arm 35 turns 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. If the traveler removing device 22 moves forward to the predetermined position, and the traveler 7 is present at the position corresponding to the traveler removing device 22, the removal of the traveler fails. Therefore, as shown in FIG. 2, an elastic lever 27 is used to push the traveler 7 from the contact position of the traveler removing device 22 to remove the traveler.

FIG. 7 is a diagram 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 the cutting member 37 in the direction, one of the travelers 7 is pressed and fed to the tip. As shown in FIG. 7B, the tip 36a of the arm 36 is bent, and the traveler is held in a vertical C-shape. Then, when the entire traveler insertion 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 far 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 is a L-shaped lever 57 in which one arm is provided with a brush 58, and a spring 59 and a stopper 60 for the other arm maintain the posture shown in the drawing. Further, a limit switch 61 is arranged on the other arm of the lever 57. When the bobbin rotates forward with 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, operates the limit switch 61, confirms that the thread is stretched, and stops the rotation of the roller. Thus, 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. The first station S1 prevents the yarn from slackening and the chattering does not occur on the downstream side of the traveler. The cycle time is shortened by exchanging and sharing the threads at the 3rd station S3 and performing the work all at once. 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. In other words, the yarn Y is zigzag and stored again 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 in FIG. 1 rotates in the normal direction, the yarn Y stored in the tensor is paid out, and the traveler 7 travels along the ring 5 in the clockwise direction as the yarn rotates. Then, the traveler 7 is locked by the claw 35a of the arm 35 shown in FIG. 6A, 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 pulling lever 21 shown in FIG. 5 pulls the yarn accumulated in the tenser further, 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 interfere with the insertion and removal of the traveler 7.

Next, as shown in FIG. 7A, 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. While the inner end of the traveler 7 is hooked on the flange 6, the outer end of the traveler 7 is extended and inserted into the flange 6, and the leaf spring 38 flies the traveler 7 to the inner side in the thickness direction of the paper. Next, as shown in FIG. 6 (b), the arm 35 rotates in the direction, the pawl 35 a and the tip 40 a take in the traveler 7, and then the arm 35 advances in the direction. ) Remove from flange 6 of the ring as shown in FIG. The disengaged traveler 7 remains 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. 2 and the pawl 35a and the tip 40a are separated from each other. The traveler 7 is dropped into the recovery 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 sensor 20 of FIG. 1, and then the tenser 20 is released. Next, the released tensor 20 returns to the original retracted position, and the operating portion 11 travels one pitch P to the left side in the drawing. Next, when the roller 19 is rotated in the normal direction and the thread is stretched by the slack eliminating device 24 in FIG. 8 and the roller 19 is stopped, the thread is not loosened and the original state is restored. In this way, the traveler exchange, which was previously thought to be done only manually, is completely automated. In addition, the old traveler was scattered by manual replacement, but since the old traveler collection box is attached to the traveler changer, it is not necessary to clean the area around the ring spinning machine.

[0029]

[Effect of device]

 The traveler exchanging machine of the present invention is provided with a first station for slackening the yarn hung on the traveler of the ring spinning machine and a second station provided with a yarn shifting lever, a traveler removing device and a traveler inserting device in parallel. A traveler exchanger having an operating section, wherein the first station is provided with a tensor for absorbing slack in the yarn on the upstream side of the traveler, and even if the tenser releases the yarn, Billiness and the like are generated on the upstream side of the traveler and are not generated on the downstream side of the traveler, so that the yarn does not come off the traveler due to the looseness and looseness on the downstream side of the traveler. The traveler can be reliably exchanged.

[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.