JPH0816291B2 - Traveler exchange method and 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 exchanging method and a traveler exchanging machine for automatically exchanging a traveler that is inserted into a ring of a ring spinning machine and hangs a yarn reaching a yarn supplying bobbin. And a traveler bobbin for reliably and easily bringing them into the ring.

[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 10
4, upper and lower roller pairs of a middle roller 106 having an apron 105 and a front roller 107 are arranged in order from top to bottom, and an upper roller of each roller pair is supported by a cradle arm to be openable and closable, and a 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 is spun through a twisting mechanism 102 described below.

The twisting mechanism 102 includes a spindle shaft 11 on which a bobbin 12 is inserted and a ring rail 14 which is vertically traversable along the longitudinal direction of the bobbin 12.
And a ring 15 fixed to the ring rail 14 and a traveler 7 that is inserted into the ring 15 and can travel in the circumferential direction.
, The balloon control ring 9 and the snell wire 8 are arranged from bottom to top.

The spindle shaft 11 is normally rotated at a high speed of about 10,000 to 20,000 RPM by a belt 13 common to a plurality of weights. The yarn Y is wound on the bobbin 12 via the snell wire 8, the balloon control ring 9 and the traveler 7. Bobbin 1
When 2 is turned, the traveler 7 is pulled by the hung upper yarn Y1 and lower yarn Y2, runs on the ring 15, and twists the yarn. There is a difference in rotation speed between the bobbin 12 and the traveler 7 by an amount corresponding to the length of the yarn sent from above, and the bobbin 12 is wound by this length. That is, the ring 15 and the traveler 7 are a frictional resistance body for producing a difference in the number of rotations, and at the same time, a traveling direction changing mechanism for changing the twisting action to the winding action.

The traveler 7 is a small metal fitting having a total length of 5 mm and a width of less than 1 mm, which is usually C-shaped or clamp-shaped, and is attached to the ring 15. This traveler 7 wears because it rotates on the ring 15 at a high speed of around 10,000 to 20,000 RPM. Therefore, the traveler 7 is replaced with a new one every 1-2 weeks.

[0007]

The conventional method of exchanging the traveler is manual, and by using an appropriate pawl metal fitting, the pawl metal fitting is inserted into the gap between the traveler 7 and the ring 15.
I moved the claws to widen the gap, removed the old traveler, and inserted a new traveler. Therefore, if all the travelers of the ring spinning machine having a large number of weights are replaced, even a skilled person needs a considerable amount of time.

Therefore, it has been desired to automatically exchange travelers by a traveler exchange equipped with a traveler removing device and a traveler inserting device. In order to automatically change the traveler in this way, the traveler removing device and the traveler inserting device are operated after the upper thread and the lower thread hung on the traveler are brought close to each other on the ring. However, if you perform uniform removal operation with the traveler removal device, you can not make delicate movement adjustment like a human hand, the thread is caught in the traveler to be removed and thread breakage occurs, and there is a problem that traveler exchange fails there were.

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 reduce the risk of thread breakage when removing an old traveler when the traveler is replaced. An exchange method and an exchange device therefor are provided.

[0010]

In order to achieve the above object, the traveler replacing method of the present invention is a method of replacing a traveler in which a thread inserted into a ring and threaded to a yarn supplying bobbin is hung, and This is a method in which the upper thread and the lower thread are brought close to each other so as to intersect on the ring circumference, and at least the upper thread is lifted from the ring to perform the traveler insertion and the traveler removal.

The traveler exchange for that purpose has a rotary shaft which can advance toward a ring in which the traveler is inserted,
A bending member provided at the tip of the rotating shaft, a lower thread hook portion of a traveler formed at one end of the bending member near the rotating shaft, and a traveler formed at the other end of the bending member remote from the rotating shaft. And a traveler insertion / removal device and a traveler removal device.

[0012]

[Function] When the traveler is removed with the upper thread and the lower thread with respect to the traveler being moved so as to intersect each other on the ring circumference and at least the upper thread is lifted from the ring, the thread is removed to the extent that the traveler escapes from the traveler. The old traveler can be removed while leaving adequate elasticity.

When the rotary shaft of the thread shifting lever is rotated, the lower thread hooking portion and the upper thread hooking portion of the bending member move the upper thread and the lower thread so as to intersect the ring, and the upper thread is floated by the degree of rotation. You can keep the state.

[0014]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view showing the structure and operation of a yarn pulling lever provided in a traveler exchange. In FIG. 1, 7
Is a traveler, 12 is a yarn feeding bobbin, 14 is a ring rail, 15 is a ring, Y1 is a needle thread based on the traveler 7, Y
2 is a lower thread of the Traveler 7 standard, which is the same as that described in FIG.

Reference numeral 31 is an operation unit of the traveler exchange,
The operating portion 31 is provided with the yarn pulling lever 1 and its driving mechanism 2. The yarn pulling lever 1 includes a rotating shaft 3 and a bending member 4 at the tip of the rotating shaft 3. One end of the bending member 4 has a lower thread hooking portion 4a that is shortly projected in a direction perpendicular to the rotating shaft 3.
Is formed. The bending member 4 bends at about 1/2 circle,
The other end is bent at a right angle to the direction of the rotating shaft 3 and further bent in a dogleg shape to form the upper thread hooking portion 4b.

The rotary shaft 3 is rotatably supported by a housing 41 at the tip of the swing lever 40. The swing lever 40 having the shaft 42 as a fulcrum is a tension spring (not shown) and is used as the cam 4
Biased towards 3. A roller 44 is provided in the middle of the swing lever 40, and the roller 44 rolls on the cam 43. A large number of cams are fitted into the shaft 45 of the cam 43, and the traveler removing device and traveler inserting device described below are operated by the cam rotating with the shaft 45. Further, the rotary arm 46 attached to the end of the rotary shaft 3 and the rotary arm 48 fitted on the shaft 47.
And are connected by a rod 49.

When the cam 43 makes one rotation in the direction of the arrow 50, the housing 41 swings as shown by the arrow 51, and the thread shifting lever 1 advances / stops toward the ring as shown by the arrow 52, and a series of withdrawal operations. I do. Further, in the state of the chain double-dashed line in which the thread shifting lever 1 has advanced to the ring and stopped, the shaft 47 rotates within a predetermined angle as shown by an arrow 53, and the rod 49 moves up and down as shown by an arrow 54 to rotate. The shaft 3 rotates in the direction of arrow 55, and the bending member 4 moves in the direction of arrow 56. Then, the lower thread hooking portion 4a of the bending member 4 moves the lower thread Y2 toward the inner peripheral side of the ring 15, and the upper thread hooking portion 4b of the bending member 4 moves the upper thread Y1 so as to cross the ring 15. The rotation angle of the rotary shaft 3 determines whether the needle thread Y1 is in a state in which the ring 15 floats or is pressed against the ring 15.

2A and 2B are views showing the yarn pulling position. FIG. 2A is a top view and FIG. 2B is a side view. The yarn Y is pulled by a yarn pulling lever so as to cross the ring 15 on the side where the traveler 7 is stopped. A is thread and ring 1
The intersection of 5 shows the position where the new traveler 7a is inserted. At this time, the point A has a space B between the needle thread Y1 and the ring 15 as shown in FIG.
Is floating on the circumference of the ring 15.

FIG. 3 is a view showing the structure and operation of the traveler removing device 17. As shown in (a), the traveler removal device 17 has a claw 19a as a removal member for the traveler 7 formed at the tip of an arm 19, and the arm 19 is rotatable in the 57 direction with respect to the tubular body 20. It is possible. The pressing plate 18 as a fixing member is attached to the cylindrical body 20, and when the claw 19a of the arm 19 rotates in the 57 direction, the tip end 18a of the pressing plate 18 and the claw 19a can take in and hold the traveler 7. It has become. Further, the entire tubular body 20 is capable of advancing in 58 directions. Further, the arm 19 also serves as a stopper for the traveler 7, and when the thread is wound, the traveler 7 moves as shown in FIG. 7 (a), enters between the holding plate 18 and the claw 19a, and hits the arm 19 to stop. To do. And the arm 19 is 57
When turning in the direction, the traveler 7 is taken in and lifted from the ring 15 as shown in FIG. Further, when the tubular body 20 advances in the 58 direction, the traveler 7 is disengaged from the ring 15 as shown in FIG.

FIG. 4 is a perspective view showing a main part of the traveler insertion device 22 of the present invention. The traveler insertion device 22 is
A guide member 23 in which a large number of the travelers 7 are fitted,
It is composed of a cutout member 24 and a leaf spring 25. The guide member 23 guides each traveler to one end side in order to insert a new traveler into the ring of the ring spinning machine. Then, by moving the cutting member 24 in the forward direction (arrow in the figure), one of the travelers 7 of the guide member 23 is pressed and fed to the tip. The tip of the guide member 23 is bent, and the traveler 7 is held in a vertical C shape. And the traveler insertion device 22
When the vehicle moves over the ring 15 and moves back, the lower end of the traveler 7 is caught by the ring 15 and is attached.

FIG. 5 shows the thread shifting lever 1 of the exchanging device of the present invention.
And traveler removal device 17 and traveler insertion device 2
It is a figure which shows the outline | summary of operation | movement of 2. After the traveler 7 has stopped traveling, as shown in FIG.
The upper thread hooking portion 4b approaches the upper thread Y1 and the lower thread hooking portion 4a gets over the ring 15 and advances to a position approaching the lower thread. At that time, the detaching device 17 also advances to the ring 15 and hooks the claw 19a of the arm 19 on the traveler 7. Next, the thread shifting lever 1 is rotated in the direction of arrow 56. Then, as shown in FIG. 3B, the upper thread hooking portion 4b of the thread shifting lever 1 is the upper thread Y1 and the lower thread hooking portion 4a is the lower thread Y2.
Are pressed against each other so that the yarn Y crosses the circumference of the ring 15. At this time, at the intersection A, the needle thread Y2 is ring 15
It is in a state of being lifted from. Further, the traveler removing device 17 is located inside the bending member 4 of the yarn puller lever 1, and does not interfere with the yarn puller lever 1. And
At this intersection A, the traveler inserting device 22 is attached to the ring 15 in the bending member 4 of the yarn pulling lever 1 as shown in FIG.
Go to and insert a new traveler. afterwards,
After turning the traveler removing device 17 to surround the old traveler 7 with the arm 19 and the pressing plate 18,
The traveler removing device 17 is moved in the inner circumferential direction of the ring 15 to remove the old traveler 7. At this time, by removing the traveler while the upper thread Y1 is lifted from the ring 15, the thread retains an appropriate elasticity enough to escape from the traveler, and even when the old traveler is removed, the thread is caught. Less chance of running away.

Next, an outline of the operation unit 31 equipped with the traveler exchanging device including the yarn pulling lever 1, the traveler removing device 17, and the traveler inserting device 22 will be described with reference to FIGS. 6 and 7. FIG. 6 is a front view of the operating unit 31, and FIG. 7 is a top view of the operating unit. The operating unit is supported by a bogie unit (not shown) so as to be able to move up and down, and can travel along the ring rail 14. This operating unit 31 includes three stations S1, S2,
It is classified into S3. Positioning plate 2 at station S1
6, a roller 33, and a lever 27 are provided, and the collection box 32, the roller 28, and the tensor 30 are provided in the station S2.
A yarn pulling lever 1, a traveler removing device 17, and a traveler inserting device 22 are provided, and a roller 29 and a slack eliminating device 34 are provided at the station S3.

Next, a traveler exchange procedure by the above-mentioned operation unit 31 will be described. The roles are divided such that the yarn is loosened at the station S1, the traveler is exchanged at the station S2, and the yarn is stretched at the station S3. At the station S1, the roller 33 is located on the central bobbin 12, and the central bobbin 12 is reversed to loosen the yarn. Then, the operating unit 31 travels one pitch P to the left side of the drawing, and the station S2 is in the illustrated state. At this time, the lever 27 slightly moves the traveler 7 so that the traveler 7 moves out of the position where it interferes with the operating position of the traveler removing device 17 described below. Then, the positioning plate 26 advances and is fitted into the ring 15 to be positioned. Next, the yarn Y is stored by the tensor 30, and the yarn Y
Can be fed or fed with a predetermined thread tension. Then, the tip of the traveler removing device 17 advances onto the ring 15, the roller 28 rotates the bobbin 12 in the forward direction to run the traveler 7, and the traveler 7 is hooked on the tip of the traveler removing device 17. Next, the yarn pulling lever 1 pulls the yarn across the ring 15, the traveler inserting device 22 inserts a new traveler, and then the traveler removing device 17 removes the old traveler and puts it in the collection box 32. And tenser 3
0 and the thread shifting lever 1 are also retracted by the traveler removing device 17 and the traveler inserting device 22, and the operating unit 31 travels one pitch P to the left side in the drawing. Then, the roller 29 rotates the bobbin 12 in the forward direction to wind up the loosened yarn Y, and the looseness removing device 34 makes the yarn completely stretched.

[0024]

According to the method of exchanging a traveler of the present invention, the traveler is removed by moving the upper thread and the lower thread to the traveler so as to intersect each other on the ring circumference, and at least removing the upper thread from the ring. It leaves the thread elastic enough to escape from the traveler to prevent the thread from breaking when the old traveler is removed.

Further, when the rotation shaft of the thread shifting lever in the traveler exchanging machine is rotated, the lower thread hooking portion and the upper thread hooking portion of the bending member move the upper thread and the lower thread so as to intersect the ring, and the degree of rotation thereof. Allows the upper thread to remain floating, allowing the old traveler to be removed while leaving the thread with adequate elasticity.

[Brief description of drawings]

FIG. 1 is a perspective view showing a thread shifting lever in a traveler changing machine of the present invention.

FIG. 2 is a diagram showing a yarn pulling position.

FIG. 3 is a view showing a main part of a traveler removing device.

FIG. 4 is a perspective view of a main part of the traveler insertion device.

FIG. 5 is a view showing the operation of the yarn pulling lever in the traveler exchange machine of the present invention.

FIG. 6 is a diagram showing an outline of an operation unit of a traveler exchange.

FIG. 7 is a top view of an operation unit.

FIG. 8 is a side view of the ring spinning machine.

[Explanation of symbols]

 1 Thread Pull Lever 3 Rotating Shaft 4 Curved Member 4a Lower Thread Hooking Part 4b Upper Thread Hooking Part 7 Traveler 12 Bobbin 17 Traveler Removal Device 22 Traveler Inserting Device Y1 Upper Thread Y2 Lower Thread

Claims (2)

[Claims] 1. A method of exchanging a traveler in which a yarn inserted into a ring and reaching a yarn supplying bobbin is hung, wherein the upper yarn and the lower yarn with respect to the traveler are brought close to each other so as to intersect on the ring circumference, and at least A traveler replacement method in which the needle thread is lifted from the ring and the traveler is inserted and removed and the traveler is removed. 2. A rotary shaft that is capable of advancing toward a ring in which a traveler is inserted, a bending member provided at the tip of the rotary shaft, and a traveler formed at one end of the bending member near the rotary shaft. A traveler exchanging machine comprising a yarn pulling lever including a lower yarn hooking portion and an upper yarn hooking portion of a traveler formed on the other end of the bending member away from the rotation axis, a traveler inserting device and a traveler removing device.