JP2580961B2 - How to change traveler - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for automatically replacing a traveler inserted in a ring of a ring spinning machine, and more particularly, to a method for securely inserting yarn into a traveler when a new traveler is inserted. About the traveler exchange method to enter.

[0002]

2. Description of the Related Art First, a ring spinning machine using a traveler will be described with reference to FIG. The ring spinning machine 101 has a twisting mechanism 102 and a draft mechanism 103. The draft mechanism 103 includes a back roller 104, an apron 105
Roller 106 having a front roller 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 yarn S becomes a yarn via the draft mechanism 103. This yarn becomes a spun yarn through a twisting mechanism 102 described below.

The twisting mechanism 102 includes a spindle shaft 1 on which the bobbin 2 is inserted, a ring rail 4 that can move up and down along the longitudinal direction of the bobbin 2 and can be traversed, and a ring fixed to the ring rail 4. 5, a traveler 7 which is inserted into a flange of the ring 5 and can travel in the circumferential direction, a balloon control ring 9 and a snell wire 8 are arranged from bottom to top. The spindle shaft 1 rotates at a high speed of about 10,000 to 20,000 RPM on a belt 3 common to a plurality of weights.

[0004] The yarn Y is wound around the bobbin 2 via a snell wire 8, a balloon control ring 9 and a traveler 7. As the bobbin 2 rotates, the traveler 7 is pulled by the yarn and runs on the flange of the ring 5 to twist 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 winds up this length. That is, the ring 5 and the traveler 7 are a frictional resistor for generating a rotational speed difference, and at the same time, a traveling direction changing mechanism for performing a twisting action and a winding action.

[0005] The traveler 7 is inserted into the flange of the ring 5 with a C-shaped fitting. Since the traveler 7 rotates at a high speed of about 10,000 to 20,000 RPM on the flange, it wears. Therefore, it is necessary to exchange the traveler 7 from an old one to a new one every one to two weeks. Conventional traveler replacement methods have been manual. That is, the old traveler is removed using an appropriate nail fitting, and a new traveler is inserted. When the new traveler is inserted, the traveler mounting device may be used as a manual tool. This conventional method of exchanging the traveler uses tools, but is manual, 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 is required.

Therefore, a traveler replacement method for automating the traveler replacement has been desired. Such an automatic traveler exchange method is performed in the order of loosening the yarn reaching the traveler, turning the yarn supplying bobbin to set the traveler at a predetermined position, exchanging the traveler, and removing the slack of the yarn after the exchange. If this operation is sequentially performed on one yarn supplying bobbin, the cycle time becomes longer. Therefore, for the three yarn supplying bobbins, a preparation process for loosening the yarn reaching the traveler, a work process for replacing the traveler, and a finishing process for removing the slack of the yarn after the replacement are simultaneously performed, and the yarn supplying bobbin is moved. We have proposed a traveler replacement method that shifts the preparation process, the work process, and the replacement process sequentially for one yarn feeding bobbin by shifting them one by one to reduce the cycle time.

Here, in the conventional traveler replacing method, a yarn pulling step of bringing the yarn to a position where it does not interfere with the traveler replacement will be described with reference to FIG. 12, and a traveler attaching step will be described with reference to FIG.

FIG. 12A is a top view of the yarn moving lever 21, and A1, B1, and C1 in FIG. 12B are sectional views showing the positions of the yarn. In FIG.
Reference numeral 1 denotes a pair of levers 77 and 78, and hook portions 77a and 78a are formed at the ends. Hook 77a
Moves the yarn Y2 downstream of the traveler 7 to the inside of the ring 5, and the hook 78a moves the yarn Y2 upstream of the traveler 7.
1 is moved to the outside of the ring 5 and the thread Y is held so as to cross the upper surface of the ring 5 diagonally. By doing so, the position of the thread at the point A1 of the hook portion 77a, the point C1 of the hook portion 78a, and the intermediate point B1 is at the position shown in FIG. B in FIG.
At the same time that the traveler 7 is inserted at one point, the yarn Y is hooked on the traveler 7.

FIGS. 13A and 13B are views showing the structure and operation of the traveler mounting device 22, wherein FIG. 13A is an overall perspective view and FIG. 13B is an enlarged view of a main part. 5A, the traveler mounting device 22 includes an arm 82 into which a large number of travelers 7 are fitted, a cutout member 83, and a leaf spring 8
It consists of four. By moving the cutout member 83 in the direction, the traveler 7 is sent out to the tip while holding down one of the travelers 7. As shown in FIG. 3B, the distal end 82a of the arm 82 is bent, and the traveler is held in a vertical C-shape. Then, when the entire traveler attaching device 22 retreats from the inside of the ring 5 to the outside (in the direction), the traveler 7 is inserted into the ring 5. At the same time, the free traveler 7 is flipped to the far side in the thickness direction of the paper by the leaf spring 84 in FIG.

In order to prevent the yarn Y from being carried along with the removal of the old traveler, the insertion of the new traveler by the traveler attaching device 22 is performed before the removal of the old traveler by the traveler removing device 23. Therefore, the replacement of the traveler in this case requires that the two new and old travelers be located in the crossing portion A1-C1 shown in FIG. Therefore, the thread is set so that the starting point A1 of the crossing portion A1-C1 substantially overlaps the tangent of the inner circumferential circle of the ring 5 and is parallel to the ring flange horizontal plane 5a as shown in FIG. While maintaining Y, the crossing portion A1-C1 was made the longest, and the traveler was replaced. Here, FIG.
(C) is a JJ cross-sectional view of FIG.

[0011]

However, the above-mentioned method of mounting the traveler is, as shown in FIG.
Since the yarn Y is held parallel to the horizontal surface of the ring flange 5a, the angle between the bottom surface of the traveler attaching device 22 and the yarn Y becomes parallel, and the bottom of the case 22a of the traveler attaching device 22 shown in FIG. , The yarn Y also moves from the inside to the outside so that the yarn Y rolls on the upper surface of the ring 5 with the movement of the traveler attaching device 22 from the inside to the outside of the ring 5 (in the direction). There is a problem that the traveler 7 is inserted without being hooked.

The present invention has been made in view of such a problem, and an object of the present invention is to attach a traveler to a ring in a state where a yarn is securely hooked, and to replace a traveler as a whole traveler exchange machine. It is an object of the present invention to provide a traveler exchange method that improves the success rate.

[0013]

SUMMARY OF THE INVENTION In the method of replacing a traveler according to the present invention, with the improvement of the method of replacing the traveler, the yarn is not carried along with the removal of the old traveler, and the yarn is arranged so as to be parallel to the horizontal plane of the ring flange. And the fact that the need to remove the old traveler has been reduced after the new traveler has been installed, and the yarn has been moved vertically with respect to the horizontal plane of the ring flange. It has a yarn pulling step of holding the yarn so as to cross it diagonally, and a step of attaching the new traveler after removing the old traveler.

[0014]

When the yarn is held obliquely in the vertical direction with respect to the horizontal surface of the ring flange by the above means, the angle between the bottom surface of the traveler mounting device and the yarn is not parallel, and the bottom surface of the traveler mounting device and the yarn are separated. Since the contact surface in the case of contact is point contact, the yarn rolls on the upper surface of the traveler ring with the movement of the traveler attaching device, thereby preventing the traveler from being inserted without the yarn being hooked.

[0015]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a view showing a traveler exchanging method of the present invention, and in particular, a yarn pulling lever 21 in an operation process described in detail below.
1 shows a yarn pulling process.

In FIG. 1, as shown in (b), which is a cross section taken along the line JJ in FIG. 1 (a), the yarn Y is held so as to cross the ring flange horizontal surface 5a obliquely in the vertical direction and the ring 5 It is approached to the side.

As described above, the yarn is formed on the horizontal surface of the ring flange 5a.
When it is held to cross diagonally in the vertical direction,
The angle between the bottom surface of the traveler attaching device 22 and the yarn Y is not parallel, and the contact surface when the bottom surface of the traveler attaching device 22 abuts on the yarn Y becomes a point contact. This prevents the thread from rolling on the upper surface of the traveler ring 5 and inserting the traveler 7 without the thread Y being hooked.

Next, a traveler exchange applied to the above-described traveler exchange method will be described with reference to FIGS. FIG. 2 is a side view of the traveler switching machine traveling along the ring rail 4, FIG. 3 is a front view, and FIG. 4 is a top view. 2 and 3, the traveler exchange comprises an operating unit 11 and a bogie unit 12 which holds the operating unit 11 so as to be vertically movable. 13 is a power supply
It is a control unit.

A wheel 37 which rolls at the corner of the ring rail 4 and a magnet 38 and a magnet 39 directed sideways with respect to the ring rail 4 are attached to the operating portion 11. The distance between the magnets 38 and 39 and the ring rail 4 is set to a predetermined value by the guide rollers 40 and 41. As shown in FIG. 3, magnets 38, 39 are provided between the two wheels 37, 37.
The ring rail 4 is regulated by the wheels 37, 37, and the ring rail 4 is
Is sucked so that it does not tilt in the horizontal direction.

The operating section 11 includes the slide rail 3
3 is attached to a slide body 34 sliding on
2 can be moved up and down with respect to the section L.
In order to apply a substantially equal force F to the ring rail 4, the operating force of the magnets 38 and 39 is applied to the ring rail 4 by the attraction force of the magnets 38 and 39 regardless of the height of the ring rail 4 at any height. The wheel 37 has a structure to which an appropriate contact pressure is applied. This takes into account that the stop position of the ring rail 4 which moves up and down between the chess parts 2a of the bobbin 2 and gradually rises as the chess parts 2a of the bobbin 2 is formed is at an arbitrary height during the section L. It is. The operation unit 11
A plate 35 is attached to the, and the plate 35 is bent obliquely upward after extending downward.

The carriage unit 12 has a structure in which a frame 32 is fixed diagonally to a square frame 31, and a slide rail 33 is attached to a vertical frame of the square frame 31. The bogie unit 12 is provided with a constant load spring 36 formed by winding a coil spring of a thin plate whose section is curved in an arc shape, and the tip of the constant load spring 36 is connected to the end of the plate 35. Therefore, an upward force F is applied to the plate 35. The applied force F is adjusted to be substantially equal to the weight G of the operation unit 11, and the weight G of the operation unit 11 is offset.

Further, the operation unit 11 includes the yarn pulling lever 2
1. The traveler attaching device 22 and the traveler removing device 23 include a first tensor 24, a second tensor 25, a first roller 26, a second roller 27, a third roller 28, and a roller 29 as a positioning member. Is provided as an operating device for traveler replacement. These operating devices are operated in a predetermined order by the cam train 42 operated by the motor M4.

The rollers 26, 27 and 28 of the carriage 12 are retracted during travel of the traveler exchange, and come into contact with the spindle 1 as shown in the figure during operation. However, rollers 26 and 2
The rotation of 7, 28 is performed by separate motors M1, M2, M3. The first roller 26 rotates the spindle 1 in the reverse direction to loosen the yarn Y, the second roller 27 rotates the spindle 1 in the normal direction to move the traveler 7 to a predetermined position, and the third roller 28 rotates the spindle 1 further in the normal direction. Thread Y is stretched. The roller 29, which is a positioning member, is retracted as shown by a two-dot chain line when the traveler exchange machine runs, and swings to the position indicated by the solid line during operation and stops against the contact portion 44 of the stopper rail 43.

As shown in FIGS. 3 and 4, the traveler exchange machine includes a first station S1 for performing a preparation process for obtaining a necessary slack in the traveler exchange, a second station S2 for performing a traveler exchange work process, It has three stations S1, S2, and S3, a third station S3 that performs the finishing process after the yarn is tensioned and exchanged. The work for the traveler exchange is shared, and the work is performed all at once to shorten the cycle time. doing.

The operating devices of the first station S1 for performing the preparation process include a first tensor 24, a first roller 26, a positioning limit switch 60, a positioning lever 61, and a spring 6
2, a second station S2 for performing a replacement work process
The operation devices of the first embodiment include a yarn pulling lever 21, a traveler attaching device 22, a traveler removing device 23, and a second tensor 2
5 and the second roller 27, and the operating devices of the third station S3 for performing the finishing process are the third roller 28 and the slack removing device 17. When the entire traveler exchange runs at every arrangement pitch P of the ring 5, one yarn feeding bobbin 2
From the first station S1 to the second station S2
→ The third station S3 operates sequentially.

As described above, the wheels 45 that travel on the rails 10 are provided on the bogie unit 12 for traveling at every pitch P. As shown in FIG. 3, when the motor M5 makes one rotation, the wheels 45 rotate in the direction of the arrow E via the links 47, 48, and 49, and travel just the distance corresponding to the pitch P.

Next, an explanation will be given of the operating equipment for traveler exchange working at each station of the traveler exchange.

FIGS. 5 and 6 show the structure and operation of the tensor 24 of the first station S1 and the tensor 25 of the second station S2. The left diagram in FIG. 6 is a top view, and the right diagram in FIG. It is an arrow view. In FIG. 5, the tensers 24, 25
Is composed of a comb 71 having three claws 70 and a comb 73 having two claws 72. The whole of the tensers 24 and 25 can advance and retreat with respect to the yarn Y of the ring spinning machine 101.

The claws 70 and 72 of the comb 71 and the comb 73 project from the respective boards 71a and 73a.
Is fixed to the shaft 74, and the two claws 72 are the claws 70 of the comb 71.
And is rotatably inserted into a hole 75 provided in the comb 71 so as to be positioned between them. Therefore, a pair of combs 71,
The respective claws 70 and 72 of 73 are freely meshable by the rotation of the shaft 74, and hold the yarn Y in the bent portions 70a and 72a of the claws 70 and 72 and store the yarn Y in the tensor.

In the tensor 24 of the second station, a limit switch 76 for detecting a sufficient degree of engagement is provided inside the board 73a, and a detection piece 76a is provided inside the board 71a. . This degree of engagement indicates the amount of slack of the yarn Y. When a sufficient amount of slack of the yarn Y is obtained, that is, when the amount of engagement is sufficient, the limit switch 76 provided inside the board 73a is set to the board. When the limit switch 76 is turned on by contacting the detection piece 76a provided inside the 71a, the feeding of the yarn from the yarn supplying bobbin 2 is stopped.

Next, the operation of the tensers 24 and 25 will be described with reference to FIG. In (a), the tensers 24 and 25 are retracted to the operation unit 11. In (b), when the tensers 24 and 25 advance in the direction from the retracted position, the thread Y is moved to the claws 70 and 72.
Are located between the bent portions 70a and 72a of the. And the claw 72
Move around the shaft 74 in the direction, and mesh with each other in the state (c), the yarn Y zigzags, the slack is absorbed, and the yarn Y is stored.

The tensor 25 of the first station S1 is for obtaining in advance the slack of the yarn Y necessary for replacing the traveler. If the slack amount of the yarn Y is insufficient, the second station S2 described below is used. The operation of the yarn pulling lever of the second station S2 becomes incomplete,
It is necessary to know the slack of the yarn Y, that is, the tension, sufficiently accurately in order for the yarn moving lever to operate reliably. Therefore,
The limit switch 76 and the detection piece 76a shown in FIG. 5 are provided.

The operation of the limit switch 76 is as follows. First, in FIG. 6, the tensor 24 advances in the direction, and the claws 70 and 72 mesh in the direction. Next,
The limit switch 76 detects whether the tensor 24 has sufficient slack. If the slack amount of the yarn Y is insufficient,
Since the engagement of the claws 70 and 72 is insufficient, the limit switch 76 is not turned on. In this case, the yarn is fed from the yarn supplying bobbin by reversing a roller (not shown). When the engagement between the claws 70 and 72 becomes sufficient and the limit switch 76 is turned on, the yarn feeding by reversing the yarn supplying bobbin 2 is stopped.

Next, the roller is rotated forward (not shown) and the yarn is wound around the yarn supplying bobbin, thereby moving the traveler to a predetermined position. When the traveler stops at a predetermined position, the thread is tensioned, so the limit switch 76 is turned off again to detect the thread tension, and it is confirmed that the next continuation operation is not hindered. Although the gate tenser using a pair of combs 71 and 73 has been described as an example of the tensers 24 and 25, an air tensor that absorbs slack by sucking and calling air may be used. However, a gate tensor is preferred because an air tensor requires an air source.

FIG. 7 is a diagram showing the structure and operation of the traveler positioning device 63 in the preparation process. The traveler positioning device 63 includes a positioning limit switch 60, a positioning lever 61, and a spring 62 provided in the operation unit 11 of the traveler exchange.

FIG. 7A is a view after the bobbin 2 is rotated in the reverse direction to loosen the yarn. The distal end of the positioning lever 61 has advanced onto the ring 5 from the operation unit 11 of the traveler exchange, which will be described later. The positioning lever 61 is rotatably provided on the operating portion 11 of the traveler exchanger with the pin 61a as a fulcrum. A spring 62 is connected to the rear end of the lever 61 so that the front end crosses the ring 5 at an angle as shown in the drawing. Is kept. When the tip of the positioning lever 61 is turned to the left in the drawing, the positioning limit switch 60 is moved by its operating piece 6.
0a is provided at a position where it contacts. In this state, the bobbin 2 is rotated forward and the traveler 7 travels in the direction of the arrow.

FIG. 7B shows that the traveler 7 moves by the forward rotation of the bobbin 2 from the state shown in FIG. 7A and comes into contact with the distal end of the positioning lever 61, and the positioning limit switch 60 is turned on. FIG. Furthermore,
The bobbin 2 is rotated forward, and the traveler 7 travels in the direction of the arrow.

FIG. 7 (c) shows a state in which the bobbin 2 rotates forward to further move the traveler 7 from the state of FIG. 7 (b), and the contact with the tip end of the positioning lever 61 is released.
The positioning limit switch 60 turned on at
It is the figure where it became in FF state. The rotation of the bobbin 2 is stopped at the timing when the positioning limit switch 60 is turned off again.
To stop.

In the preparatory process, if the traveler 7 is within the range H, the traveler 7 moves to a position where the replacement operating device advances and interferes with the replacement operating device in the next traveler replacement work process. In the preparation process, the traveler 7 is moved to a certain range H
, The variation in the time for moving the traveler to the predetermined position where the replacement work is performed in the next work process is reduced, and the start time of the traveler replacement work in the work process is shortened.

FIG. 8 is a diagram showing the structure and operation of the traveler removing device 23. In FIGS.
The left figure is a view as seen from the arrow I in the right figure. The traveler removing device 23 includes a cylindrical body 80 and a cylindrical body 8 as shown in FIG.
It comprises an arm 79 that can rotate in the direction relative to 0 and a pressing plate 81 attached to the cylindrical body 80 as a fixing member. A claw 79a as a detaching member for the traveler 7 is formed at the tip of the arm 79. When the claw 79a rotates in the direction, the tip 81a of the pressing plate 81 and the claw 79a are rotated.
a so as to take in the traveler 7 so that it can be clamped. Further, the entirety of the cylindrical body 80 can advance (forward in the direction) into the ring 5.

A description will be given of a method of removing the traveler by the traveler removing device 23 having such a structure. FIG.
6A, the tip 81a of the holding plate 81 and the claw 79
a so that the pinched portion of the traveler 7 by the a is located at the position of the abdomen 7a on the side where the yarn of the traveler 7 is hung.
The cylindrical body 80 is advanced to the ring 5 (forward in the direction). When the bobbin is normally rotated to wind the yarn Y and move the traveler 7, the traveler 7 enters between the holding plate 81 and the claw 79a, hits the arm 79 and stops. And
The arm 79 is turned in the direction.

FIG. 8B shows a state in which the arm 79 turns in the direction, and the traveler 7 is held between the tip 81 a of the pressing plate 81 and the claw 79 a of the arm 79.

In FIG. 8C, the nipping portion 7a of the traveler 7 is lifted upward perpendicular to the upper surface of the ring 5 in a direction in which the opening 7c of the traveler opens, and the traveler 7 is removed from the ring 5.

As described above, the nipping portion 7a of the traveler
Is the direction in which the opening 7c of the traveler opens, and when the traveler 7 is removed from the ring 5 by lifting it upwardly perpendicular to the upper surface of the ring 5, the yarn Y hooked on the traveler 7 once together with the traveler 7 Even if it is lifted vertically upward, it immediately falls vertically downward, and it is no longer said that it is pulled and cut while being caught by the removed traveler 7.

When the traveler removing device 23 advances to a predetermined position, if the traveler 7 is at a position corresponding to the traveler removing device 23, the removal of the traveler fails. Therefore, FIG.
The traveler 7 is previously moved to a position on the ring suitable for the replacement work in the work process by the method shown in FIG.

FIG. 9 is a view showing the operation of the traveler attaching device 22 shown in FIG. In FIG. 9, (a)
Shows that the traveler mounting device 22 has advanced inside the ring 5. At this time, the traveler 7 is not accurately held in the vertical C-shape by the tip 82 a of the arm 82. Then, the ring 5 is slightly moved from the inside to the outside (in the direction) as it is, and the state shown in FIG.

FIG. 2B shows a traveler mounting device 2.
2, once retreat a little outward (direction) of the ring,
One end 7b of the traveler 7 is shown in contact with the upper surface of the ring 5. Therefore, it is difficult for the traveler 7 to move in the direction, and only the traveler attaching device 22 moves, and the holding position of the traveler 7 is slightly shifted in the direction. Then, the other end 7d of the traveler 7 is supported by the one end 7b as a fulcrum.
It descends in six directions.

At this time, once on the outer side (direction) of the ring
When the traveler attaching device 22 is slightly retracted from the outside of the ring toward the inside (in the direction of 85) as shown in FIG.
d descends in the 86 direction with the one end 7b as a fulcrum, and FIG.
The state shown in is shown.

When the traveler attaching device 22 is slightly retracted outward (in the direction) of the ring in the state shown in FIG. 9D, the other end 7d of the traveler 7 is hooked on the ring 5 and further retracted. The traveler 7 is inserted into the ring 5.

As described above, the traveler mounting device 22
When the vehicle repeats the advance and retreat twice into the ring 5, the first time is accurately moved up and down by the traveler attaching device 22.
The traveler 7, which is not held in a character shape, is also held exactly in a vertical C shape by the second advance.

FIG. 10 is a top view showing the structure and operation of the yarn slack removing device. The slack removing device 17 is provided with the L-shaped lever 5.
7, a brush 58 is implanted on one arm, and the posture shown in the figure is maintained by a spring 59 and a stopper 54 for the other arm. A limit switch 55 is provided for the other arm of the lever 57. When the bobbin is normally rotated by the roller 28 in FIG. 3, the slack yarn is wound, but when the yarn is stretched, the traveler 7 travels along the ring 5. The traveler 7 pushes into the brush 58 and swings the lever 57 in the counterclockwise direction.
Is activated, and it is confirmed that the thread is stretched, and the rotation of the roller is stopped. As described above, if the yarn is not stretched after replacing the traveler 7, the yarn breakage occurs at the start of the ring spinning machine.

A method of exchanging a traveler using a traveler exchange having such an apparatus for exchanging a traveler will be described based on the operation at each station shown in FIGS. The rollers 26, 27 and 28 can contact the side surfaces of the three bobbins 2 and can be rotated separately by motors. It is assumed that the operation unit 11 performs a traveler exchange operation from left to right in the drawing.

At the first station S1, the positioning plate 16 shown in FIG.
Is positioned. Next, the roller 26 advances to reverse the bobbin 2 to loosen the yarn. This slack of the yarn is absorbed to the maximum by the tensor 24 shown in FIG. Then, the traveler 7 is moved to the position H on the ring 5 suitable for the replacement work in the second station S2 by the positioning method using the traveler positioning device 63 described with reference to FIG.
Thereafter, after releasing from the tensor 24, the thread is further loosened so that a loop of the contracted thread Y is easily formed above the traveler 7. Then, after the tensioner 24 releases the thread, the operating section 11 travels one pitch P to the right in the drawing, and moves to the second station S2.

Next, at the second station S2,
The yarn Y is stored again in a zigzag manner by the tensor 25 shown in FIG. 5, and the yarn Y can be fed or fed with a predetermined yarn tension. At this time, since the loop of the contracted yarn Y exists above the traveler 7, the whole of the slack yarn is stored in the tensor 25 without the yarn Y coming out of the opening of the traveler 7. Next, the arm 79 of the traveler removing device 23 shown in FIG. 8 (a) is connected to the abdomen 7a on the side where the thread of the traveler 7 is hooked by the portion of the traveler 7 sandwiched between the tip 81a of the holding plate 81 and the claw 79a. To a predetermined position on the ring 5 so that

Next, when the roller 27 rotates forward, the yarn Y stored in the tensor 25 is paid out, and the traveler 7 travels clockwise along the ring 5 with the rotation of the yarn. Then, the traveler 7 is locked by the claw 79a of the arm 79 in FIG. 8A, and the traveling of the traveler 7 stops at a predetermined position. At this time, the roller 27 rotates by a predetermined number by a preset control device. Next,
The yarn moving lever 21 shown in FIG. 1 moves the yarn Y from above to cross the ring 5 while further feeding out the yarn stored in the tensor. As a result, as shown in FIG.
Is held at a position where the removal of the traveler 7 is not hindered. At this time, the yarn Y is held so as to cross obliquely in the vertical direction with respect to the horizontal surface 5a of the ring flange, as shown in FIG.

Next, the arm 79 of the traveler removing device 23 shown in FIG.
And after the tip 81a has taken in the traveler 7, FIG.
As shown in (c), the claw 79a and the tip 81a of the holding plate are provided.
Is lifted upward perpendicular to the upper surface of the ring 5 to remove the traveler 7 from the ring 5 in the direction in which the opening 7c of the traveler opens. The detached traveler 7 has a claw 79a and a tip 81.
a, the traveler removal device 2
With the exit of 3, the traveler 7 moves the collection box 15 of FIG.
And the claw 79a is separated from the tip 81a, so that the traveler 7 is dropped into the collection box 15.

Next, the traveler 7 held by the arm 82 of the traveler attaching device 22 shown in FIG.
Is advanced to a predetermined position on the inner peripheral side of the ring 5, and the whole temporarily retreats slightly outward (direction) of the ring 5. Then, after a little further inward into the ring 5, the entire traveler mounting device 22 retreats outward (in the direction) from the ring 5, and the inside end 7 d of the traveler 7 is hooked on the ring 5,
The outer end 7b of the traveler 7 is extended, inserted into the ring 5, and the leaf spring 84 flies the traveler 7 backward in the thickness direction of the paper.

Thereafter, the yarn pulling lever 21 of FIG. 1 returns to the original retracted position, and the slack of the yarn is stored again in the tensor 25 of FIG. 5, and then the tensor 25 is released. Next, the released tensor 25 returns to the original evacuation position, and the operation unit 11
The vehicle travels on the right side of the drawing by the pitch P and moves to the third station.

Next, at the third station, when the roller 28 rotates forward and the tensioned state is detected by the slack removing device 17 in FIG. 10 and the roller 28 is stopped, the thread is not slackened and returns to the original state. Become.

[0060]

As described above, according to the method for replacing the traveler of the present invention, the yarn is held so as to cross diagonally in the vertical direction with respect to the horizontal surface of the ring flange so that the yarn is brought into contact with the bottom surface of the traveler mounting device. In this case, the contact surface is made into point contact to prevent the yarn from rolling on the upper surface of the traveler ring with the movement of the traveler attaching device and the traveler being inserted without the yarn being hooked. As a result, the traveler exchange success rate of the entire traveler exchange is improved.

[Brief description of the drawings]

FIG. 1 is a diagram showing a traveler replacement method of the present invention.

FIG. 2 is a side view of the traveler exchange.

FIG. 3 is a front view of the traveler exchange.

FIG. 4 is a top view of the traveler exchange.

FIG. 5 is a perspective view showing a structure of a tensor.

FIG. 6 is a diagram showing the operation of the tensor.

FIG. 7 is a diagram showing the structure and operation of a traveler positioning device.

FIG. 8 is a diagram showing the structure and operation of the traveler removing device.

FIG. 9 is a view showing the operation of the traveler attaching device.

FIG. 10 is a view showing the structure and operation of the yarn slack removing device.

FIG. 11 is a front view of the ring spinning machine.

FIG. 12 is a diagram showing a conventional yarn shifting process.

FIG. 13 is a diagram showing a structure of a traveler attaching device.

[Explanation of symbols]

 Reference Signs List 5 ring 5a ring flange horizontal plane 7 traveler 21 thread pulling lever 77, 78 lever 77a, 78a hook portion Y thread AC crossing distance

 ──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-5-78931 (JP, A) JP-A-5-86519 (JP, A) JP-A-5-86520 (JP, A) JP-A-5-86520 86521 (JP, A) JP-A-5-86522 (JP, A) JP-A-5-86523 (JP, A) JP-A-5-86524 (JP, A) JP-A-5-86525 (JP, A) JP-A-5-86526 (JP, A) JP-A-5-86527 (JP, A) JP-A-5-86528 (JP, A) JP-A-5-86529 (JP, A) JP-A-5-132828 (JP, A) JP-A-5-156533 (JP, A) JP-A-5-230728 (JP, A) JP-A-5-69181 (JP, U)

Claims (1)

(57) [Claims] 1. A yarn pulling step for holding a yarn so as to cross diagonally in a vertical direction with respect to a horizontal surface of a ring flange, a yarn pulling step, and a step of attaching a new traveler after removing an old traveler. And the traveler replacement method.