JP2563078Y2 - Pipe yarn switching device of winding unit - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a yarn switching device for a winding unit which supplies a yarn to a winding position of a plurality of winding units arranged in parallel in an automatic winder and discharges an empty paper tube.

[0002]

BACKGROUND OF THE INVENTION For example, an automatic winder in which a large number of yarn supplying bobbins produced by a ring spinning machine are spliced and wound into one cone or cheese-like winding package while removing defective portions such as slabs. It has been known. In this automatic winder, a plurality of weights of a winding unit are arranged in parallel, and the equipment arrangement of one weight will be described with reference to FIG.

In FIG. 5, a winding unit 101 is fixed in position by a bearing tube 102 and a duct 103, and a yarn Y drawn from a yarn 4 positioned and supplied to a predetermined position of the unit is supplied to a balun breaker 106 and a predetermined position. After passing through a disk or gate-type tensor 107 for applying tension, a slab catcher 108 for detecting a defective portion of the yarn, and the like, it is wound by a traverse drum 113 onto a winding package 114 that rotates. Reference numeral 115 denotes a yarn splicing device.
Reference numeral 6 denotes a suction mouth for guiding the upper thread of the package to the yarn splicing device 115, and 117, a relay pipe for guiding the lower thread of the yarn supplying bobbin to the yarn splicing device 115. Each winding unit 101 has the above members. A number of such winding units 101 are arranged side by side to constitute one automatic winder. In addition, the yarn supplying bobbins 4 are individually trays 5.
Is supplied from the yarn feeding conveyor 1 to the winding position 11 via the yarn yarn switching device 3 in a state of being inserted. And
After the winding is completed, the empty paper tube 8 is discharged to the empty yarn discharge conveyor 2 via the yarn yarn switching device 3 and replaced with a new yarn 4.
Is supplied to the winding position 11.

The above-mentioned yarn switching device 3 is disclosed in
The one disclosed in Japanese Patent Application Laid-Open No. 69370/69 is known. Hereinafter, this yarn switching device 3 will be described with reference to FIGS. 6 and 7. In FIG. 6, 101 is a winding unit that is disposed in large numbers at predetermined intervals in the front-rear direction of the paper surface, 1 is a yarn feeding conveyor that travels back and forth along the unit 101 along the paper surface, and 2 is a yarn feeding conveyor that runs along the unit 101. The empty yarn discharge conveyors 3 running back and forth on the paper are yarn yarn switching devices disposed between the two conveyors 1 and 2. As shown in the figure, the yarn supply conveyor 1 inserts and transfers the yarn 4 into the tray 5. A peg 7 is erected on the hollow disc-shaped tray 5 through a central step 6, and the thread 4 is inserted into the peg 7 by inserting the lower end of the paper tube 8 into an upright posture on the step 6. At the end of the peg 7, there is provided a through-hole 10 communicating the hollow portion in the tray 5 with the center hole 9 of the paper tube 8, and the yarn end Y of the yarn 4 is ejected to form It is hung in the hole 9. The yarn supply conveyor 1 and the empty yarn discharge conveyor 2 are disposed with an upper and lower level difference from each other, and the yarn switching device 3 is provided in such a manner as to diagonally connect between them, and the yarn 4 is made of a yarn. The paper is conveyed from the supply conveyor 1 to a winding position 11 in the yarn supply device 3, wound by a winding unit 101 into a package (not shown), discharged as an empty paper tube 8, and conveyed by the yarn discharge conveyor 2. You.

Next, the details of the thread switching device 3 will be described with reference to FIG. First and second guide plates 1 forming a bent path 12 of the tray 5 between the two conveyors 1 and 2
3 and 14 are fixed to the winding unit 101, and the lower surface of the carry-in side passage 12a is an inclined disk 15 which rotates freely,
The lower surface of the discharge side passage 12b is a bottom plate 16 in which the first guide plate 13 is bent. The yarn supply conveyor 1, the inclined disk 15, the bottom plate 16 and the yarn discharge conveyor 2 form substantially the same continuous plane, and a part of the inclined disk 15 comes into contact with the yarn supply conveyor 1 to Is applied in the direction of arrow a. The yarn feeding conveyor 1 is further provided with a third guide plate 18, which guides some of the trays 5 conveyed by the conveyor 1 in the direction of the arrow b into the carry-in side passage 12a, and has an excess tray 5. Through.

[0006] A stopper 20 having a free roller 19 at its tip is pivotally supported on the first guide plate 13 by a shaft 21, and is urged to rotate in the direction of arrow c by a spring 22.
3, the rotation is stopped. The stopper 20 has a projection 25 that makes the exit of the first bent portion of the passage 12, that is, the exit of the standby position 24, smaller than the outer diameter of the step 6 of the tray 5 when in contact with the pin 23. The tray 5 guided into the carry-in side passage 12a from the yarn supply conveyor 1 is stopped at the standby position 24, and two trays 5 are always secured in the carry-in side passage 12a.

An eject lever 26 is pivotally supported on the second guide plate 14 by a shaft 28. Eject lever 26
Has a concave portion 31 which can hold and hold the step portion 6 of the tray 5 at the second bent portion of the passage 12, that is, the above-described winding position 11, and the other side has an arc-shaped roller supporting edge centered on the shaft 28. 32. As shown in FIG. 6, the shaft 28 of the eject lever 26 is rotated by a rocking arm (not shown) that reciprocates by a push rod 44 that moves up and down in a cam row 43.

Since the winding position 11 is located on the inclined disk 15, when the tray 5 is located within the winding position 11, the portion of the inclined disk 15 corresponding to the center of the peg 7 is centered on the shaft 17. A plurality of arc-shaped through holes 34 are provided. As shown in FIG. 6, a nozzle 35 for jetting compressed air toward the through holes 34 is provided at a central position of the peg 7 which is further lower than the through holes 34. It is provided. A valve 38, which is opened and closed by a lever 37, is provided between the nozzle 35 and an air hose 36 for sending out air. The air sent from the hose 36 turns the lever 37 by the rotation of a shaft 39. Through the valve 38, from the nozzle 35 to the hollow portion of the tray 5 through the through hole 34 of the inclined disk 15,
Further, the yarn end Y1 which flows into the central hole 9 of the paper tube 8 through the through hole 10 of the peg 7 and blows up the yarn end Y1 hanging in the central hole 9 is blown up. The blown-up yarn end Y1 passes through the inside of the balloon breaker 106 of the winding unit 101, is sucked and held by a suction mouse (not shown) waiting above, and is combined with a yarn end on the package (not shown) and wound. The shaft 39 of the lever 37 is also rotated by a rocking arm (not shown) that reciprocates by a push rod 45 that moves up and down by the cam row 43.

The operation of the above-described conventional thread switching device 3 will be described. First, in FIG. 7 showing a normal winding state, one tray 5 is located at the winding position 11 and a standby position 24 is located in the carry-in side passage 12a. Are located respectively. At this time, the first tray 5a in the take-up position 11 is stopped by supporting the step 6 in the concave portion 31 of the eject lever 26, and the second tray 5b in the standby position 24 is 6 is brought into contact with the projection 25 of the stopper 20 so that the disk 15
Has been prevented from being sent.

When the winding of the yarn 4 on the first tray 5a is completed from this state, the cam 28 of the winding unit 101 rotates the shaft 28 by a predetermined angle. As a result, the eject lever 26 rotates to the left as shown in FIG. 8 while holding the first tray 5a in the concave portion 31.
The second tray 5a is discharged from the discharge-side passage 12b onto the yarn discharge conveyor 2. With the rotation of the eject lever 26, the roller supporting edge 32 of the eject lever 26 comes into contact with the free roller 19 of the stopper 20 to retract the convex portion 25 of the stopper 20 to the left. Therefore, the second tray 5b is released from the convex portion 25, and obtains a driving force by friction from the tube thread supply conveyor 1 to rotate the inclined disk 15 constantly rotating.
, And is brought into contact with the roller supporting edge 32 of the eject lever 26 to be stopped.

Next, when the eject lever 26 returns to the original position, the stopper 20 returns to the original position shown in FIG. 7, and the second tray 5b stopped at the roller support edge 32 moves to the position of the eject lever 26. It moves to the inside of the recess 31, that is, to the winding position 11. At the same time, the shaft 39 in FIG. 6 rotates to release the valve 38, and the compressed air is blown out from the nozzle 35 through the through hole 34 of the inclined disk 15 and the through hole 10 of the peg 7, and the yarn end Y1 of the yarn 4 Is blown up and sucked and gripped by a suction mouse (not shown) to start winding.

[0012]

By the way, in the winding unit shown in FIG. 6, the remaining unwinding amount called a three-piece ball is 1 /
The absolute value and amplitude of the unwinding tension suddenly increase from the point in time when the number reaches 3, and if the degree of the increase increases, thread breakage due to the tension occurs. Further, with the increase in the winding speed, sluffing (a state in which a plurality of coils are entangled with each other like a loop-through and unwound all at once without being stably unwound from the chess portion 4a of the tube thread 4) frequently occurs. Become like The increase in the unwinding tension and the occurrence of sluffing depend on the unwinding state from the yarn 4, and in order to increase the unwinding tension and suppress the occurrence of sluffing to increase the winding speed, It has been proposed that the balloon of the yarn unwound from the yarn 4 is restricted by a balloon breaker 106 having a constricted cylinder, and the balloon breaker 106 follows the unwinding of the yarn 4 and is gradually lowered in the direction of arrow h. ing. In order to make the operation of the balloon breaker 106 effective, the balloon breaker 106
It has been found that it is necessary to make the gap ε between the inner diameter of the paper tube 8 and the outer diameter of the paper tube 8 as small as possible. However, in order to reduce the gap ε, the thread 4 must be
And the bottom plate 16 must be positioned at the winding position 11 while maintaining a vertical posture as much as possible with respect to the reference plane A.

However, in the yarn thread switching device 3 shown in FIG. 6, the tray 5 is placed on the end of the rotating inclined disk 15, and a part of the tray 5 is also placed on the bottom plate 16. Whether the rotation accuracy of the inclined disk 15 is good or bad, the bottom plate 16 and the inclined disk 1
The bottom of the tray 5 becomes unstable due to the height difference of the tray 5 and the like. There was a problem that it was difficult to do.

The present invention has been made in view of such problems of the prior art, and an object of the present invention is to set the winding position in a state in which the pipe thread is accurately positioned vertically with respect to a reference plane. It is an object of the present invention to provide a tube thread switching device which can be held at a predetermined position.

[0015]

In order to achieve the above-mentioned object, the yarn switching device according to the present invention is provided between the supply conveyor and the discharge conveyor of the tray in which the yarn is inserted.
The tray from the supply conveyor passes through the standby position to the winding position
Ejects the carry-in side passage that guides and the tray at the take-up position
Each take-up unit has a discharge side passage that guides to the conveyor
Provided in each case, the take-up position was large enough to fit the tray.
Formed from the bottom plate and moved from the supply conveyor to the standby position
Transport means for loading and transporting the paper from the standby position;
And the moving means for moving the tray to the position
The tray at the take-up position to the discharge conveyor
Discharging means, and the transport means
Provided independently of the conveyor, intermittent by each winding unit
This is configured to operate .

[0016]

[Action] conveying means for carrying the tray to the standby position, providing by dividing and moving means for moving the tray standby position to the winding position, the reference plane bottom plate forming a winding position
The posture of the tray to be accurate become.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a side view of the yarn switching device of the present invention,
FIG. 2 is a top view thereof.

In FIGS. 1 and 2, the main differences from FIGS. 6 and 7 are that the inclined disk 51 as the conveying means is smaller and the bottom plate 52 is wider by that amount.
The first eject lever 53 as a moving means is added to the guide plate 14, and the shape of the second eject lever 54 as the discharging means is different from the conventional eject lever. Parts other than those described below that operate in the same manner as in FIGS. 6 and 7 are denoted by the same reference numerals, and description thereof will be omitted.

In FIG. 1, an inclined disk 51 as a conveying means is separated from and independent of the paper tube supply conveyor 1 and has two standby positions 24, but a winding position 11
And completely apart from. The inclined disk 51 is rotatably supported on a shaft 55, and the shaft 55 is
And is fixed to a bracket 56 that protrudes from the bracket. At the lower end of the inclined disk 51, a ratchet wheel 57 having a large number of teeth is attached. Further, a rotation plate 58 is rotatably supported on the shaft 55, and a claw 58a is supported by the rotation plate 58.
When the rotating plate 58 is pushed and pulled by the link fitting 59, the ratchet wheel 57, that is, the inclined disk 51 rotates in the direction e in FIG. 2, and conveys the tray downward along the carry-in side passage 12a. be able to. The reciprocating movement of the link fitting 59 of FIG. 1 for intermittently rotating the inclined disk 51 is performed by the push rod 60. The push rod 60 is moved up and down by the common cam row 43 in the winding unit 101, and pushes and pulls the link fitting 59 via a locking arm (not shown).

The bottom plate 52 of FIG. 2 has a size such that the tray 5a at the winding position 11 can be completely loaded. And the second
The tray 5a is held at the winding position 11 by the concave portion 61 of the guide plate 14 and the first eject lever 53 described below. The second eject lever 54 as a discharging means disposed between the bottom plate 52 and the second guide plate 14 has only the roller supporting edge 32 and the concave portion 31 of FIG. 7 holding the tray 5a.
There is no equivalent to.

A first eject lever 53 as a moving means in FIG. 2 is fixed to a shaft 62 which is rotatably provided on the second guide plate 14. A first arm 63 is provided above the shaft 62.
Is fixed, and the bottom plate 52 and the second guide plate 1
4 is fixed to the second arm 64.
A free roller 65 that is in contact with the roller support edge 32 of the second eject lever 54 is attached to the tip of the second arm 64. The first arm 63 and the second guide plate 14
A spring 66 is stretched between the first arm 63 and the second arm 64 to urge the first arm 63 and the second arm 64 integrally in the direction of arrow f.

The first arm 63 contacts the step 6 of the tray 5 a at the winding position 11 and presses the step 6 of the tray 5 a against the recess 61 of the second guide plate 14. The first arm 63 is provided with a holding member 67 for the tray 5a. As shown in FIG. 1, the holding member 67 includes a cap 69 with a flange 69 a housed in a two-step hole 68 provided in the first arm 63, a lid 70, and the lid 70 and the cap 69. And a spring 71 between them.
Although always urged in the direction of arrow f by the spring 71, it can be retracted by the distance δ. The tip of the cap 69 holds the upper surface of the tray 5a. Therefore, as shown in FIG. 1, even if the bottom plate 52 is inclined and the gap σ exists between the bottom plate 52 and the second guide plate 14,
The bottom surface of the tray 5a is in close contact with the bottom plate 52 without the tube thread 4 being inclined by its own weight or the like.

The operation of the above-described yarn thread switching device 3 will be described. First, in FIG. 2 showing a normal winding state, one tray 5 is provided at a winding position 11 on a bottom plate 52, and an inclined disk 51 is provided.
Two are located at the standby position 24 in the upper carry-in side passage 12a, respectively. At this time, the first tray 5 in the winding position 11
a holds the stepped portion 6 so as to be sandwiched between the concave portion 61 of the second guide plate 14 and the first lever 63 of the first eject lever 53, and the second tray 5b at the standby position 24 holds the stepped portion. The part 6 is brought into contact with the convex part 25 of the stopper 20 to prevent slipping. In this state, the inclined disk 51 is stopped.

When the winding of the yarn 4 on the tray 5a at the winding position 11 is completed from this state, the shaft 28 is rotated by a predetermined angle by the cam row 43 of the winding unit 101 in FIG. As a result, the second eject lever 54 rotates to the left as shown in FIG. 3 while pushing the tray 5a from the concave portion 61 of the second guide plate 14, and moves the tray 5a at the winding position 11 from the discharge side passage 12b to the yarn discharge conveyor. 2 Discharge up.
With the rotation of the second eject lever 54, the roller support edge 32 thereof comes into contact with the free roller 65 of the first eject lever 53, and the first arm 63 of the first eject lever lever 53 is retracted to the position shown in the drawing. Where 14
Reference numeral a denotes a groove for preventing the holding member 67 from interfering with the second guide plate 14. Further, the roller support edge 32 abuts on the free roller 19 of the stopper 20 and the protrusion 25 of the stopper 20
To the left. Therefore, the second tray 5b is released from the convex portion 25, and the inclined disk 51 intermittently rotates.
And is stopped by contacting the roller support edge 32. Here, the inclined disk 51 is connected to the winding unit 101 shown in FIG.
Of the cam row 43, the push rod 60, the link fitting 59,
It rotates intermittently via the rotating plate 58, the pawl 58a, and the ratchet wheel 57. The protruding portion 72 of the stopper 20 on the side opposite to the free roller 19 blocks the passage 12a and prevents a new tray 5 from entering.

Next, when the second eject lever 54 returns to the original position, the stopper 20 returns to the original position by the spring 22, and the second eject lever 54 also attempts to return to the original position by the spring 66. At this time, the first arm 63 of the second eject lever 54 moves the second tray 5b released from the roller support edge 32 into the concave portion 61 of the second guide plate 14, that is, to the winding position 11. Further, the holding member 67 of FIG. 1 rides on the upper surface of the tray and presses the tray against the bottom plate 52. Therefore, the bottom surface of the tray comes into close contact with the bottom plate 52, and the posture of the thread 4 is adjusted to the reference plane A.
Can maintain a vertical posture with respect to. That is, by accurately assembling the reference plane A of the bottom plate 52, the thread 4
Can be made accurate. Then, simultaneously with the return of the second eject lever 54, the nozzle 35 of FIG.
Compressed air is blown out of the pipe thread 4 to blow up the yarn end (not shown) of the tube yarn 4 so that the suction mouth (not shown) grips the yarn end to start winding. At this time, the fixed hole 52 of the bottom plate 52 is
Since it blows up through "a", it does not lead to a mistake in blowing up due to the discontinuous rotating through hole 34 as shown in FIG.

Next, the timing of the intermittent rotation of the inclined disk 51 will be described with reference to FIG. In the figure, N1 is the drive timing of the nozzle 35, N2 is the drive timing of the second eject lever 54, and N3 is the inclined disc 5
1 shows the rotation timing. First, the second eject lever 54 rotates so as to push an empty paper tube from g to h. During this time, the inclined disk 51 rotates by a predetermined angle by the first feed of the ratchet wheel j. Further, while the second eject lever 54 rotates from h to i toward the original position, the inclined disk 51 is rotated by a predetermined angle by the second and third feeds of the ratchet wheel of k and m. I do. Then, as shown in FIG. 3, the tray 5 is moved to the roller support edge 32 of the second eject lever 54. And the second eject lever 5 with i
4 returns to the original position, and the nozzle 35 is operated at n to perform threading.

In the above-described embodiment, the case where the inclined disk 51 is used as the conveying means and the first eject lever 53 is used as the moving means has been described. It is important to form the winding position on another bottom plate or the like instead of forming on the plate. Therefore, a conveying belt may be used as the conveying means, and a pusher device may be used as the moving means.

[0028]

According to the present invention, the yarn thread switching device is a carry-in device that guides the tray from the supply conveyor to the winding position via the standby position between the supply conveyor and the discharge conveyor of the tray in which the yarn is inserted. A side passage, and a discharge side passage that guides the tray at the winding position to the discharge conveyor are provided for each winding unit, and the winding position is formed by a bottom plate having a size on which the tray can be placed, and from the supply conveyor. A transport unit for placing and transporting the tray to the standby position and a moving unit for moving the tray from the standby position to the winding position are provided separately, and the posture of the tray can be accurately determined by the bottom plate serving as a reference plane of the winding position. As a result, the bottom surface of the tray at the winding position is stabilized, and the tube thread can be accurately positioned vertically with respect to the reference plane. Further, the transport means,
It is provided independently of the supply conveyor and is configured to operate intermittently by each winding unit, so that the tray and transport
Sliding of the means is minimized, and wear of the tray and the transport means can be reduced.

[Brief description of the drawings]

FIG. 1 is a side view of the yarn switching device of the present invention.

FIG. 2 is a plan view thereof.

FIG. 3 is an operation state diagram thereof.

FIG. 4 is a timing chart of the intermittent drive of the inclined disk.

FIG. 5 is a device layout diagram of a winding unit.

FIG. 6 is a side view of a conventional thread switching device.

FIG. 7 is a plan view thereof.

FIG. 8 is an operation state diagram thereof.

[Explanation of symbols]

 Reference Signs List 3 yarn thread switching device 4 yarn thread 5 tray 11 winding position 24 standby position 51 inclined disk (transporting means) 52 bottom plate 53 first eject lever (moving means) 54 second eject lever (discharging means)

Claims (1)

(57) [Scope of request for utility model registration] 1. A supply conveyor for a tray into which a tube thread has been inserted.
Between the feed conveyor and the discharge conveyor.
A carry-in side passage that guides a through the standby position to the winding position
Guide the tray at the take-up position to the discharge conveyor.
A discharge side passage is provided for each winding unit, and the winding position is formed by a bottom plate having a size on which the tray is mounted.
And transports the tray from the supply conveyor to the standby position.
And a tray from the standby position to the winding position.
And a moving means for moving the tray, and discharges the tray at the winding position to the discharge conveyor.
A discharge means is provided, and the transport means is provided independently of the supply conveyor.
To operate intermittently by each winding unit
Thread switching device for winding unit .