JPH079983U - Traveler exchange - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a traveler exchange in which a positioning member that can move back and forth does not fall over even if it hits an obstacle. A traveler exchanging machine, which is capable of traveling along a ring spinning machine and has an advancing / retreating positioning member that abuts against a stopper for each ring pitch and a suction means for a ring rail, wherein the positioning member 29 comprises:
Interference avoiding means 57 for absorbing the advance when it interferes with an obstacle at the time of advancing is provided, and the force required for absorption of the interference avoiding means 57 is made smaller than the adsorbing force of the adsorbing means so that the traveler exchanging device adsorbs to the ring rail. The positioning member 29 is allowed to escape while maintaining the above state.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a traveler changer for automatically changing a traveler fitted in 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. The ring spinning machine 101 has a twisting mechanism 102 and a drafting mechanism 103. The draft mechanism 103 has a back roller 104, a middle roller 106 having an apron 105, and a pair of upper and lower rollers of a front roller 107 arranged in order from top to bottom, and an upper roller of each roller pair is supported by a cradle arm so that it can be opened and closed. The lower roller of each roller pair is driven. The large-diameter sliver S or roving thread S becomes a thread through the draft mechanism 103. This yarn is spun through a twisting mechanism 102 described below. The twisting mechanism 102 includes a spindle shaft 1 into 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 that can traverse, and a ring 5 fixed to the ring rail 4. , A traveler 7 which is fitted in 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 is a belt 3 common to a plurality of weights and normally rotates at a high speed of about 1 to 20,000 RPM. The yarn Y is wound on the bobbin 2 via the snell wire 8, the balloon control ring 9 and the traveler 7. When the bobbin 2 rotates, the traveler 7 is pulled by the yarn and runs on 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 changing the twisting action to the winding action. Such a ring spinning machine 101 is provided with a large number of weights on the ring rail 4 extending from the front side of the paper surface to the other side of the paper surface, and a large number of rows of such ring weight spinning machine 101 are arranged.

The traveler 7 is a small metal fitting having a total length of 5 mm and a width of less than 1 mm, and is usually C-shaped or clamp-shaped, and is fitted to the ring 5. This traveler 7 wears because it rotates at a high speed on the ring 5 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. In the past, this traveler exchange was done manually, and automation with a traveler exchange machine has become desirable.

Therefore, the applicant has previously provided an operating part having a traveler exchanging means and a bogie part traveling along the ring spinning machine, and the operating part was supported so as to be vertically movable relative to the bogie part. Proposed a traveler exchange. The operating part of this traverse exchange has a positioning device because it needs to be stopped at a predetermined position with respect to the ring in which the traveler is fitted.

Specifically, a positioning member having a semi-circular cutout that contacts the ring of the ring rail is provided in the operating unit so as to be able to move forward and backward, and the advanced positioning member hits the ring to become a fixed position, and the traveler exchange means moves the ring. It is designed so that it can be operated in a fixed position. In other words, the traveler exchange was positioning based on the ring.

[0006]

[Problems to be solved by the device]

 However, when the positioning member contacts the ring of the ring rail for positioning, the traveler exchange may fall over due to the reaction of the protruding positioning member.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a traveler exchange machine in which a positioning member that can move back and forth does not fall over even if it hits an obstacle. is there.

[0008]

Means for Solving the Problems A traveler exchanger of the present invention that achieves the above object is capable of traveling along a ring spinning machine, and a movable positioning member and a ring rail that abut against stoppers for each ring pitch. The above-mentioned positioning member is provided with an interference avoiding means for absorbing the advance when it interferes with an obstacle at the time of advance.

[0009]

[Action]

 If the force required to absorb the interference avoiding means that absorbs the advance of the positioning member is made smaller than the suction force of the suction means, the positioning member will escape while the traveler exchanger is kept attracted to the ring rail.

[0010]

【Example】

 Embodiments of the present invention will be described below with reference to the drawings. 1 is a side view of the traveler exchange, and FIG. 2 is a front view of the traveler exchange.

In FIGS. 1 and 2, the traveler exchange includes an operating unit 11 and a carriage unit 12 that holds the operating unit 11 so as to be vertically movable. Reference numeral 13 is a power supply / control unit. The dolly portion 12 has a structure in which a pedestal frame 32 is obliquely fixed to a quadrangular frame 31, and a slide rail 33 is attached to a vertical frame of the quadrangular frame 31. The operating unit 11 is attached to a slide body 34 that slides on a slide rail 33, and is vertically movable with respect to the carriage unit 12. A plate 35 is attached to the operating unit 11, and the plate 35 extends downward and then bends obliquely upward. A constant load spring 36, which is formed by winding a coil spring of a thin plate having a bow-shaped cross section, is provided in the carriage portion, and the tip of the constant load spring 36 is connected to the end of the plate 35. Therefore, the 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 operating portion 11, and the weight G of the operating portion 11 is offset.

Wheels 37 rolling on the corners of the ring rail 4 and lateral magnets 38 and downward magnets 39 for the ring rail 4 are attached to the operating unit 11. The distance between the magnets 38, 39 and the ring rail 4 is a predetermined value for the wheel 37. As shown in FIG. 2, downward rollers 40 and 41 are provided in front of and behind the magnets 38 and 39, and the ends of the ring rail 4 are attracted by the seam A of the ring rail 4 and do not tilt in the horizontal direction. It is like this. By the way, since the ring rail 4 of FIG. 1 moves up and down between the chess portions 2a and gradually rises as the chess portions 2a are formed, the stop position becomes an arbitrary height during the section L. However, since the operating unit 11 can be moved up and down by the slide rail 33 and the constant force spring 36 applies a substantially equal force F between the sections L, the operating unit 11 can move the ring rail 4 at any height. With the self-weight G canceled, the wheels 37 are applied with an appropriate contact pressure against the ring rail 4 by the attraction force of the magnets 38, 39.

The operation unit 11 also includes a yarn pulling lever 21, a traveler attaching device 22, and a traveler removing device 23, which are traveler exchanging means. The dolly unit 12 has a first tensor 24, a second tensor 25, a first roller 26, a second roller 27, a third roller 28, and a positioning member 29 that is movable back and forth to abut the side surface of the ring 5 as a stopper. There is. These operating devices are operated in a predetermined order by the cam row 42 operated by the motor M1. The tensors 24 and 25 advance to the position of the yarn Y and store the yarn Y in a zigzag shape between the three movable blades that are engaged with the two fixed blades. The rollers 26, 27, 28 are retracted when the traveler exchange is running, and come into contact with the spindle 1 as shown in the figure during operation. However, the rotation of the rollers 26, 27, 28 is performed by separate motors M1, M2, M3. The first roller 26 reverses the spindle 1 to loosen the yarn Y, the second roller 27 normal rotates the spindle 1 to run the traveler 7 to a predetermined position, and the third roller 28 further rotates the spindle 1 to normal direction. And thread Y. The yarn pulling lever 21 pulls the yarn Y1 on the upstream side and the yarn Y2 on the downstream side of the traveler 7 diagonally across the ring 5. The traveler mounting device 22 fits the new traveler 7 into the ring 5, and the traveler removal device 23 removes the old traveler 7 from the ring 5. The positioning member 29 is retracted so as not to hit the ring 5 as a stopper as shown in FIG. 1 when the traveler exchange is running, and during operation, it is advanced between the rings 5 and hits the side surface of the ring 5 to a predetermined position. It is supposed to stop at.

As shown in FIG. 2, the first tensor 24 and the first roller 26 are operating devices of the first station S 1, and the yarn pulling lever 21, the traveler attaching device 22, the traveler removing device 23, and the second tenser 25 are provided. The second roller 27 is an operating device of the second station S2, and the third roller 28 is an operating device of the third station S3. As the whole traveler exchange machine travels at the arrangement pitch P of the rings 5, the first station S1 → the second station S2 → the third station S3 operates in sequence for one yarn feeding bobbin 2. ing.

As described above, the wheels 45 that travel on the rails 10 are provided in the carriage 12 for traveling at each pitch P. As shown in FIG. 2, when the motor M5 makes one revolution, the wheels 45 rotate in the direction of arrow B via the links 47, 48, 49, and travel a distance equivalent to the pitch P.

Next, details of the stopper and the positioning member 29 will be described with reference to FIG. As the stopper, the ring 5 to be positioned is used. Instead of this ring, a contact portion for each ring pitch P may be attached to the ring rail 4 or a hole for each ring pitch P may be machined.

In the positioning member 29, an L-shaped contact plate 51 is attached to a slide body 53 that slides on a slide rail 52, and the slide body 53 can be moved forward and backward by a first link 54 and a second link 55. It is a thing. The second link 55 is swingable around a shaft 56, and a roller 57 provided in the middle of the second link 55 rolls on a cam 58 so that the tension spring 59 pushes the roller 57 against the cam 58. .

When the cam 58 rotates together with the cam shaft 60, the second link 55 swings depending on the shape of the cam 58, and the contact plate 51 faces the ring 5 together with the first link 54 and the slide body 53. To go back and forth. In the latter half of the traveling of the pitch P, the contact plate 51 has advanced, and the side surface 51a of the contact plate 51 hits the side surface of the ring 5 as a stopper and stops when traveling in the direction of the arrow a. When an abnormality occurs in pitch running and the contact plate 51 moves out and hits the front side surface of the ring 5 or the like, a force in the direction of tilting the square frame 31 in FIG. 1 is applied. In this case, the tension spring 59 shown in FIG. 3 extends to prevent it from falling, and the micro switch MS3 detects an abnormality. Therefore, the tension force of the tension spring 59 is set to be smaller than the attraction force of the magnet 38 shown in FIG. For safety, a hook 61 as shown in FIG. 1 may be provided to prevent the fall.

The attachment and transportation of the above-mentioned traveler exchange to the ring spinning frame will be described with reference to FIG. When carrying on the floor F, the entire traveler exchange can be made independent by the casters 50, and pushed by hand to carry to the desired ring spinning machine. Then, the wheels 45 and 46 are placed on the rail 10, the height of the operating unit 11 is adjusted to the height of the ring rail 4, and the wheel 37 is placed on the ring rail 4, and the magnets 38 and 39 are attracted to the state shown in the figure. It becomes a state. Since the center of gravity of the entire traveler exchange is outside the rail 10, it tends to fall down but is attracted by the magnet 38. Further, since the self-weight G of the operating portion 11 is offset by the constant force spring 36, the operating portion 11 tries to move up with a slight force, but is attracted by the downward magnet 39 and the operating portion 11 separates from the ring rail 4. Never. Further, when the contact plate 51 of the positioning member 29 interferes with the obstacle, the contact plate 51 of the positioning device 29 escapes by the interference avoiding means as shown in FIG.

Next, an outline of traveler exchange by the traveler exchange will be described with reference to FIG. The first station S1 loosens the yarn, the second station S2 performs traveler exchange, and the third station S3 stretches the yarn. In the first station S1, the roller 26 is located on the central bobbin 2, the central bobbin 2 is reversed, the yarn is slackened and stored in the first tensor 24, and the bill is upstream or downstream of the traveler 7. Of the yarns Y1 and Y2. Then, the operating unit 11 travels to the right side in the drawing by one pitch P, and the second station S2 is in the illustrated state. At this time, the positioning member 29 advances and contacts the side surface of the ring 5 as a stopper to be positioned. Next, the second tensor 25 stores the yarn Y again, and the yarn Y can be fed or fed with a predetermined yarn tension. Then, the tip of the traveler removing device 22 advances onto the ring 5, the roller 27 causes the bobbin 2 to rotate normally and the traveler 7 travels, and the traveler 7 is hooked on the tip of the traveler removing device 23. Next, the thread pulling lever 21 pulls the thread across the ring 5, the traveler attaching device 22 inserts a new traveler 7, and the traveler removing device 22 removes the old traveler and puts it in a recovery box (not shown). . Then, the second tenser 25, the yarn pulling lever 21, the traveler removing device 23, and the traveler attaching device 22 are retracted, and the operating unit 11 travels one pitch P to the right side in the drawing. Then, the roller 28 rotates the bobbin in the normal direction to wind up the loosened yarn Y to make the yarn completely stretched.

[0021]

[Effect of device]

 The traveler exchange of the present invention is provided with interference avoidance means for absorbing the advance of the positioning member when it interferes with the obstacle at the time of advancement of the positioning member. If the force required for is smaller than the suction force of the suction means, the positioning member will escape while the traveler exchange is still attracted to the ring rail, so it is possible to prevent accidental falls of the traveler exchange.

[Brief description of drawings]

FIG. 1 Side view of a traveler exchange

FIG. 2 is a front view of a traveler exchange.

FIG. 3 is a diagram showing a stopper member and a positioning member.

FIG. 4 is a front view of the ring spinning machine.

[Explanation of symbols]

 3 ring rail 4 ring (stopper) 11 operating part 12 bogie part 29 positioning member 51 contact plate 52 slide rail (advancing and retracting structure) 58 cam (advancing and retracting structure) 59 tension spring (interference avoidance means)

Claims (1)

[Scope of utility model registration request] 1. It is freely movable along a ring spinning machine,
A traveler exchanger having a retractable positioning member that abuts against a stopper for each ring pitch and a suction means for a ring rail, wherein the positioning member comprises:
A traveler exchange equipped with interference avoidance means to absorb the advance when it interferes with an obstacle.