JPH107321A - Thread handler - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a yarn end from dropping by providing a member which is projected into a yarn handling area for a thread to be taken in a package when the yarn is broken to remove the yarn from a traverse guide, and guide the yarn to a designated position in the package. SOLUTION: In the case of thread breakage, when a yarn is cut, and the yarn end slub catcher is detected, a solenoid 81 is turned off to release holding of an arm 80. With the release operation, a yarn spring plate 72 is turned on a fulcrum 73 clockwise to take the yarn spring plate 72a position. That is, the plate is projected to the yarn Y. When the traversed yarn Y is brought into contact with the end faces 85a, 86a of the projected thread spring plate 72a, the yarn Y is handled inside by the tension of the yarn Y to be guided to the inclined end faces 87a, 88a. The yarn Y guided to the inclined end faces 87a, 88a is handled further inside along the inclination and guided to a groove 85 to be put in the state of the yarn Ya. The yarn Ya is taken up in a position Yb of a package 8 and the yarn end is taken up in the position Yb.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a winding device such as a spinning unit or a winding unit having a plurality of rows so that the yarn end wound on a package is always wound at a predetermined position when the yarn is broken or doffed. The present invention relates to a yarn deviation device that performs a yarn deviation in a yarn.

[0002]

2. Description of the Related Art A spinning device in which a plurality of spinning units including a draft device, an air injection nozzle, a yarn winding device, and the like are arranged in parallel, or a winding device including a plurality of yarn supply packages and a winding device for drawing and winding the yarn. In a winder in which a plurality of units are arranged in parallel, a piecing work carriage having a piecing device that moves along the spinning unit or the winding unit arranged in parallel is run.

[0003] A piecing apparatus pulls out a yarn end on a spinning side of a spinning unit and a yarn end on a winding side of a winding unit when a yarn breaks or doffs, and guides them to a piecing member such as a splicer or a knotter. ing. The yarn end on the spun side was drawn out by a suction nozzle connected to an air sucker, and was guided to the yarn joining member. Then, at the winding side yarn end wound on the package, the base is connected to the blower mounted on the work cart, the yarn end is pulled out by a suction mouth, and it is guided to the yarn joining member. The piecing was performed. Since the suction mouth has the full width of the package, the yarn end wound on the package was wound at a random position on the package.

[0004]

However, if the yarn end to be wound on the package is wound at a random position on the package, there is a problem that the end face is unnecessarily dropped. When the suction force is to be increased, a suction nozzle having a small suction port is used instead of a suction mouth having the entire width of the package. Since the suction nozzle does not have the full width of the package, in order to pull out and feed the yarn end wound on the package, a complicated device and control that make the suction nozzle search for the yarn end at the time of suction is required. There was a problem of becoming.

SUMMARY OF THE INVENTION An object of the present invention is to solve the conventional drawbacks described above, and to provide a yarn shifter that always and surely winds a yarn end to be wound into a package at a predetermined position when a yarn breaks. It is to provide a device.

[0006]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a method for projecting a yarn to be wound around a package when the yarn breaks, removing the yarn from a traverse guide and positioning the yarn at a predetermined position in the package. Is provided. Further, the member for guiding the yarn to a predetermined position of the package has a groove with which the yarn is engaged, and an inclined portion for guiding the abutting yarn into the groove. Further, a member for winding the yarn end to a predetermined position rotates and protrudes into the yarn path.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a yarn deviation device according to the present invention will be described below with reference to the drawings. FIG. 3 is a schematic cross-sectional view showing a spinning machine to which the yarn deviation device of the present invention is applied and a yarn joining work cart. FIG. 4 is a sectional view showing a detailed example of the air soccer unit. FIG. 5 is a sectional view showing another detailed example of the air soccer unit. FIG. 6 is a sectional view of the socket.

First, a spinning machine and a piecing work cart will be described. Spinning machine 1 whose longitudinal section is schematically shown in FIG.
Is a draft device 2, a pneumatic spinning nozzle 3, a spun yarn 7
Roller 4 for transporting the yarn, a slack tube 5 for sucking the yarn 7 at the time of yarn joining and removing the slack of the yarn 7, and the yarn 7
A plurality of units 10 each including a slab catcher 6 for detecting the defect described above and a winding device 9 for winding the spun yarn 7 into a package 8 are provided. The work cart 12 is run by guide rails 11 provided along the units 10 arranged side by side. The work cart 12 is equipped with various devices for piecing and a doffing device (not shown). When a unit 10 that issues a signal that requires doffing or piecing is generated, the unit 10 receives the signal and stops at the position of the unit 10, and performs a doffing or piecing operation.
Then, when the doffing or the yarn splicing operation is completed, the process goes to the unit 10 that issues the next signal.

Next, the yarn end suction device will be described including its peripheral portion. The yarn end suction device of the present invention mainly includes a package-side yarn end guide member 15 for capturing a yarn end of a package 8 called a suction nozzle and guiding the yarn end to a yarn joining member 13, a conduit 15b, a suction air conduit 17, and an air. And a soccer 18.

The work carriage 12 has a yarn splicing member 13 such as a knotter and a splicer for the yarn splicing operation. The suction nozzle 1 sucks the yarn end on the spinning side and guides the yarn end to the yarn splicing member 13.
A spout-side yarn end guide member 4 and a suction nozzle 15 for sucking the package-side yarn end and guiding the yarn end to the splicing member 13 are both cams (not shown) of a cam device 16 to be described later.
Is supported so as to pivot around the base portion by the operation of. Although not shown in the work cart 12, the package 8
When is full, a doffing device for taking out the bobbin from the winding device 9 and setting an empty bobbin to the winding device 9 is also mounted. The suction nozzle 14 is connected at its base to a suction air conduit 17. The suction nozzle 15 is connected at its base to a conduit 15b. The conduit 15b is connected to the suction air conduit 17. The suction air conduit 17 is connected to a dust box (not shown). That is, the lint sucked from the suction nozzle 14 on the spinning side and the suction nozzle 15 on the winding side is housed in the common dust box via the suction air conduit 17, and the dust box is unified. Have been. The suction air flow in the suction air conduit 17 is discharged to the atmosphere via a dust box.

The suction air conduit 17 to which the suction nozzle 14 and the suction nozzle 15 are connected is provided with an air sucker 18 for blowing air into the suction air conduit 17 to generate a suction action (FIG. 4).
Alternatively, the suction nozzle 14 or the suction nozzle 1
A similar air soccer 18 for generating a suction effect may be provided at the tip of 5 (FIG. 5). The apparatus for supplying compressed air to the air soccer 18 is configured as follows.

That is, compressed air is sent by a branch pipe 23 from a main pipe 21 connected to a pressurizing machine (not shown) provided on the machine base 20 to a fixed socket 22 provided on the machine base 20 at an interval corresponding to each unit 10. . A carriage-side socket 24 is provided on the work carriage 12 at a position facing the fixed socket 22. The fixed socket 22 has a cylindrical shape as shown in FIG. 6, is slidably supported by an internal perforated support plate 25, and is in contact with a valve seat 28 provided in a socket opening 27 by a spring 26.
9 is supported. The head 30 of the valve body 29 protrudes from the front end contact surface 31 of the fixed socket 22. Dolly side socket 2
Reference numeral 4 denotes a cylindrical shape, and an air guide hole 33 is provided in a receiving portion 32 with which the valve body head 30 of the fixed socket 22 contacts, and a packing 34 is provided around the receiving portion 32.

The bogie-side socket 24 is supported by a swing arm 35, and the swing arm 35 is connected via a rod 38 to a swing arm 37 that contacts a cam 36 of the cam device 16. Reference numeral 39 denotes a spring for applying a force for pressing the machine side socket 24 against the fixed socket 22. When the trolley-side socket 24 advances toward the fixed socket 22, the receiving portion 32 of the trolley-side socket 24 and the head 30 of the valve element 29 of the fixed socket 22 come into contact with each other, and the valve element 29 is subjected to the elastic force of the spring 28. In order to push it back, the contact between the valve seat 28 and the valve body 29 is released, and compressed air is released from the fixed-side socket 22 to the air guide hole 3.
3 flows into the carriage-side socket 24.

In the example shown in FIG. 3, a conduit 42 following the flexible conduit 41 opens to the suction air conduit 17 through the flexible conduit 41 to the bogie-side socket 24. The opening direction of the conduit 42 with respect to the suction air conduit 17 is shown in FIG.
As shown in an enlarged manner in FIG. In the example shown in FIG. 5, the conduit 4 is so formed as to be able to pivot integrally with the suction nozzle 14 or the suction nozzle 15.
2 is fixed to the suction nozzles 14 and 15, and an annular path 43 for guiding the compressed air is provided annularly inside the distal ends of the suction nozzles 14 and 15, and the compressed air is ejected to the inside of the suction nozzle 14 in the annular path 43. A fumarole 44 is provided. 4 and 5, an electromagnetic valve 45 is provided in the middle of the conduit 42, and when the cam device 16 is operated for starting the piecing operation, a switch 46 operated by the cam 40 of the cam device 16 is used. Open and close. The electromagnetic valve 45 is an adjusting means for adjusting the pressure of the compressed air, and adjusts the suction force at the tips of the suction nozzles 14 and 15 according to the thread type, the yarn count, and the like.

In the spinning device 1, the sliver 47 drafted by the draft device 2 is connected to the air injection nozzle 3.
The yarn is spun into a yarn 7, sent out by the delivery roller 4, and wound up on a package 8 by a winding device 9. During that time, slab detection is performed by the slab catcher 6, and when a slab is found, the slab is cut off by performing thread cutting and yarn splicing.

In the above, when there is a thread break, a piecing signal is issued, and the work cart 12 is moved toward the unit 10 where the thread was cut by the signal, and stopped. And
The piecing operation is started. First, the cam device 16 is operated, and the suction nozzle 15 is moved by the cam (not shown) from the position of the suction nozzle 15 shown by the solid line in FIG. 3 to the position of the suction nozzle 15a shown by the two-dot chain line. Reciprocatingly swing toward the package 8. The suction nozzle 15
The yarn end is sucked from the package 8 of the winding device 9 and guided to the piecing member 13 for piecing. On the other hand, the suction nozzle 14 also reciprocates toward the air injection nozzle 3 from the state shown in FIG.
Guide the yarn end on the spinning side.

The work cart 12 stopped at the unit 10 for splicing rotates the cam group by the operation of the cam device 16, thereby reciprocatingly moving the suction nozzle 14, the suction nozzle 15 and the like. The rocking arm 37 is rocked by the three cams 36, and the bogie-side socket 24 contacts the fixed-side socket 22 via the rod 38 and the rocking arm 35. The receiving portion 32 of the bogie-side socket 24 and the fixed socket 22
As described above, the compressed air enters the bogie-side socket 24 from the stationary socket 22 on the machine side as described above. Then, when the switch 46 is turned on by the subsequent rotation of the cam of the cam device 16, the valve 45 is opened, and this compressed air is generated as shown in FIG.
In the example shown in FIG. 4, the air is blown obliquely from the conduit 42 to the jet air conduit 17 in the same direction as the flow of the air in the suction air conduit 17 to generate the suction force of the suction nozzle 14. In the example shown in FIG. 5, the suction nozzle 14,
15 to the suction nozzle 1
A pressure air flow directed toward the inside of each of the suction nozzles 4 and 15 is generated.

When the rotation of the suction nozzle 14 and the suction nozzle 15 and the splicing of the splicing member 13 are completed by the subsequent rotation of the cam device 16, the suction nozzle 14 and the suction nozzle 15 return to their original positions. 45 is also closed, so that the ejection of the compressed air is cut off, and the swinging arm 37 pivots clockwise by the cam 36 to separate both sockets 22 and 24, and the work cart 12 issues a splicing signal. The traveling to the next unit 10 is started.

Next, the traverse mechanism of the winding device 9 will be described. FIG. 7 is a perspective view showing a traverse mechanism of the winding device 9, and FIG. 8 is a front view schematically showing the traverse mechanism. The shaft 51 is supported by bearings 52 provided at predetermined intervals, and a gear mechanism G is attached to one end so as to be able to receive rotation from the motor M. The bearing 52 has a large number of spinning units U of the spinning machine.
Is fixed to the stay 53 attached to the machine base. A cylindrical cam 54 formed of resin (for example, polyester) is attached to the shaft 51 between the bearings 52. On the surface of the cylindrical cam 54, a right spiral and a left spiral groove 54a are continuously provided.

The slide member 57 is made of a resin (eg, polyamide) mixed with a lubricant (eg, molybdenum disulfide).
The sliding member 57 formed by
A guide hole 57a, which is a sliding portion with the guide bar 55.
And a guide groove 57b which is a sliding contact portion with the guide rail 56.
Are provided. On the other hand, the guide bar 55 and the guide rail 56 are formed of metal with respect to the slide member 57 formed of resin. By molding the slide member 57 with a resin mixed with a lubricant, the frictional resistance between the slide member 57 and the guide bar 55 and the frictional resistance between the slide member 57 and the guide rail 56 reduce the lubricating oil. It becomes small enough without using.

A guide bar 55 and a guide rail 56, which are guide means for the slide member, are respectively installed along the installation direction of the shaft 51. The guide bar 55 is mounted on the bearing 52, and the guide rail 56 is mounted on the stay 53. Can be The slide member 57 has a groove 5 of the cylindrical cam 54.
An engaging portion 58 (see FIG. 2) that engages with the traverse guide 60 is attached via the holder 59.
Is attached.

The contact surface 58a of the engaging portion 58 has a groove 54
The curved surface is such that it can uniformly contact the bottom surface of a.
Then, the traverse guide 60 guides the yarn Y.
The yarn Y is wound on a package 8 which rotates by receiving the rotation of the friction roller 61. The line shaft 62 to which the friction roller 61 is attached is provided on the machine base such that the axial direction thereof is along the axial direction of the shaft 51.

Next, the operation of the traverse mechanism will be described. When the motor starts rotating, the shaft 51 receiving the rotation of the motor and the cylindrical cam 54 attached to the shaft 51 also start rotating. At this time, it is located between the guide bar 55 and the guide rail 56 (the engaging portion 58
Since the groove 54a (which is in an engagement relationship with the groove) is provided on the cylindrical cam 54 in a right spiral shape and a left spiral shape as described above,
It moves relatively to the package 8 in the axial direction of the shaft 51 (the direction of arrow A).

On the other hand, a slide member 57 which is engaged with the groove 54a via the engagement portion 58 is slidably supported by the guide bar 55 and the guide rail 56. Therefore, when the groove 54a moves in the direction of the arrow A as described above,
The slide member 57 moves in the direction of arrow A via the engaging portion 58, and the traverse guide 60 integrally attached to the slide member 57 also moves in the direction of arrow A. Accordingly, the yarn Y is wound around the package 8 while being traversed by the rotation of the friction roller 61.

Further, if the stay 53 is provided separately from the machine base of the spinning machine and a drive mechanism for swinging the stay 53 itself in the direction of arrow A is provided, ear heights generated at both ends of the package 8 can be prevented. It becomes possible.

Next, a description will be given of a yarn deviation device which is a yarn deviation means of the winding device 9. FIG. 1 is a perspective view of a winding device 9 to which the yarn deviation device is applied. FIG. 2 is a sectional view showing a longitudinal section of the winding device 9.

The yarn deviation device mainly comprises a yarn spring plate 72, an arm 74, a plate 77, an arm 80, and a solenoid 81. A fulcrum member 73 is attached to both sides of the thread splash plate 72. These fulcrum members 73 are rotatably attached to a member 71 attached to the frame 70. A bent portion is formed on one end surface of the thread splash plate 72, and a hole 7 of the bent portion is formed.
The arm 74 is rotatably attached to the arm 5. The other end of the arm 74 is rotatably attached to a hole 76 of the plate 72. The plate 77 is rotatably attached to a shaft 78. The plate 77 is urged in the leftward rotation direction in FIG. 2 by a spring member (not shown). An arm 80 is rotatably attached to a hole 79 on the tip end side of the plate 77. Arm 80
Is connected to a solenoid 81. Solenoid 81
Is attached to the frame 83. That is, the thread spring plate 72 is connected to the solenoid 81 by a link mechanism.

At the center of the end faces 85 and 86 of the thread splash plate 72, V-shaped inclined end faces 87 and 88 cut out toward the inside of the thread splash plate 72 are formed.
Further, a groove 89 cut out in a U-shape is formed at the intersection of the inclined end surfaces 87 and 88.

The package 8 is mounted on a package supporting member 82. A member 84 is attached to the package 82, and the member 84 is rotatably attached to a shaft 78. A spring (not shown) is attached to the package supporting member 82, and the package 8 is urged by the friction roller 61.

Next, the operation of the yarn deviation device will be described. A rotational drive is given to the friction roller 61, and the package 8 urged by the friction roller 61 rotates. The yarn Y is engaged with the traverse guide 60, and is wound around the package 8 while being traversed. During a normal operation in which the yarn Y is wound around the package 8, the solenoid 81 is ON, and the arm 80 and the plate 77 connected by the hole 79 of the arm 80 are indicated by solid lines in FIG. It is held in the state shown. (The holding force of the solenoid 81 overcomes the stress of a spring member (not shown) attached to the plate 77 and has enough stress to fix the plate 77 sufficiently). Hole 7 in plate 77
The arm 74 connected to 6 is also held in the state shown by the solid line in FIG. Along with this, the thread splash plate 72 connected to the arm 74 by the hole 75 waits in a state where the thread Y wound around the package 8 is not obstructed.

When the yarn breaks, the yarn is cut. When the slab cutcher 6 detects the yarn end, the solenoid 81 is turned off, and the holding of the arm 80 is released. Along with this, the plate 77 is rotated to the left by a spring member (not shown) in FIG. 2 to be at the position of the plate 77a indicated by a two-dot chain line. (The arm 80 and the hole 79 are also at the position of the hole 79a and the arm 80a.) The hole 76 is also at the position of the hole 76a, and the arm 74 is also moved so as to be lifted to the position of 74a. The thread splash plate 72 connected to the arm 74 rotates rightward in FIG. 2 around the fulcrum 73, and is positioned at the thread splash plate 71a indicated by a two-dot chain line. That is, it protrudes with respect to the yarn Y.

When the traversed thread Y comes into contact with the projecting thread splash plate 72a, the thread Y is first removed from the traverse guide 60. Then, the traversed yarn Y is temporarily supposed to be the projected yarn spring member 7.
When the yarn Y comes into contact with the end surfaces 85a and 86a of the 2a, the yarn Y leans inward due to the tension of the yarn Y and is guided to the inclined end surfaces 87a and 88a. The yarn Y guided to the inclined end faces 87a, 88a is
It is further moved inward along the slope, and is guided to the groove 85. Then, the state of the yarn Ya indicated by the two-dot chain line is obtained. Naturally, the thread Y being traversed first
a, even when abutting against 88a, it is guided by the groove 85 and engages,
The state of the yarn Ya indicated by the two-dot chain line is obtained. Then, the yarn Ya is wound up at the position Yb of the package 8, and the yarn end is also wound up at the position Yb.

That is, the yarn Y that has been traversed and wound up in the package is removed from the traverse guide 60 and into the groove 85 regardless of the position of the yarn Y if the yarn spring plate 71 is operated. Engaging, and as a result, the yarn end is always wound up at the position of Yb.

When the yarn end is wound around the package 8, the package supporting member 82 is rotated around the shaft 78 by driving (not shown), and the package 8 is separated from the friction roller 61. In this manner, the yarn end wound around the package 8 is always wound up at a fixed position Yb. Then, when the yarn ends, the yarn 8
The yarn end is sucked by the suction nozzle 15 approaching the line (connected to the above-mentioned air sucker 18), and is discharged. The thread splash plate is reset by pressing the bent portion 77b of the plate 77 with a work cart. Further, the position of the groove 85 is desirably located at the center of the traversed yarn.

In the above embodiment, an example in which the pressure of the air sucker is adjusted by the electromagnetic valve has been described. However, it goes without saying that the output of the pneumatic device of the air sucker can be adjusted directly.

In this embodiment, an example is shown in which the socket is connected between the air sucker and the pneumatic device. However, the connection from the air sucker to the pneumatic device may be directly connected with a conduit.

Further, in the present embodiment, an example is shown in which the thread splash plate is rotated to protrude into the thread path, but it may be moved in parallel.

[0038]

As described above, according to the first aspect of the present invention, there is no problem that the end of the yarn wound around the package is unnecessarily dropped. In addition, the yarn can be removed from the traverse guide and the yarn end can always be wound up at a predetermined position of the package. Therefore, even a suction nozzle having a small suction port without a length of the entire package width can be used. This eliminates the need for the suction nozzle to perform an operation such as searching for the end of the yarn wound up in the package, and requires only a simple operation of causing the suction nozzle to protrude and retract at a predetermined position in the package. There is no need for complicated devices and control, and cost can be reduced.

According to the second aspect of the present invention, it is possible to reliably guide the yarn end wound on the package to a predetermined position of the package with a simple structure such as an inclined portion and a groove portion. Further, it is possible to adjust to various conditions such as the traverse speed and the thread type by simply changing the shapes of the inclined portion and the groove portion.

According to the third aspect of the present invention, it is possible to detect a yarn defect and operate quickly. Therefore, even when the traverse speed or the winding speed is high, the yarn end can be reliably wound at a predetermined position of the package.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a winding device to which a yarn deviation device according to an embodiment of the present invention is applied.

FIG. 2 is a sectional view showing a vertical section of FIG. 2;

FIG. 3 is a schematic cross-sectional view showing a spinning machine to which the yarn pulling device is applied and a yarn joining work cart.

FIG. 4 is a cross-sectional view illustrating a detailed example of the air soccer unit of FIG. 3;

FIG. 5 is a sectional view showing another detailed example of the air soccer unit of FIG. 3;

FIG. 6 is a sectional view showing details of the socket of FIG. 3;

FIG. 7 is a perspective view showing a traverse mechanism.

FIG. 8 is a front view showing a schematic operation of the traverse mechanism.

[Explanation of symbols]

 Y thread Ya thread 8 Package 60 Traverse guide 89 Groove 72, 72a Thread spring plate 73 Support point 74, 74a Arm (link mechanism) 77, 77a Plate (link mechanism) 81 Solenoid (fixing means) 87, 87a Inclined portion 87 , 88a Inclined portion 89 89a Groove

Claims (3)

[Claims] 1. A yarn deviation device comprising a member which protrudes into a yarn path of a yarn wound around a package when a yarn breaks, removes the yarn from a traverse guide, and guides the yarn to a predetermined position of the package. . 2. The member according to claim 1, wherein the member for guiding the yarn to a predetermined position of the package has a groove in which the yarn is engaged, and an inclined portion for guiding the abutting yarn into the groove. Itoose device. 3. A member for winding a yarn end to a predetermined position,
The yarn deviation device according to claim 1, wherein the yarn deviation device rotates and projects to a yarn path.