JP2002362832A - Automatic winder - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an automatic winder having a fluff control device surely inserting a spun yarn in an operation position between multiple disks without damaging the spun yarn and surely preventing winding of the yarn to the disk occurring in cutting the yarn. SOLUTION: This automatic winder is provided with an opening/closing means 20 moving and opening/closing a drive shaft 17 out of multiple drive shafts 16, 17, and 18 of the fluff control device 4 to the residual drive shafts 16 and 18, a yarn end guide means 36 guiding the yarn end into the fluff control device 4 by moving the yarn end with its catching, and a control means 50 controlling the movement of the opening/closing of the opening/closing means 20 and the movement of the yarn guide means 36. The control means 50 operates the opening/closing means 20 and the yarn end guide means 36 for every operation of an ending device 5.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic winder provided with a fluff controller for a spun yarn using a plurality of disks.

[0002]

2. Description of the Related Art A spinning bobbin (an example of a yarn supply package) wound with a spun yarn produced by a ring spinning machine is conveyed to an automatic winder. In this automatic winder, a spun yarn wound around a ring spinning bobbin is removed, and spun yarns from a large number of spun bobbins are joined to be wound back into a cone or cheese-like winding package. The rewinding process using an automatic winder is a process of applying a tension to a spun yarn unwound from a spinning bobbin and rewinding the spun yarn through a number of yarn guides to form a package. Therefore, each time a spun yarn formed by twisting short fibers passes through a yarn guide or the like, friction occurs, and the fluff existing in the spun yarn of the spinning bobbin before rewinding tends to increase after rewinding.

For this reason, in the rewinding process using a winder such as an automatic winder, a fluff control device is provided in the yarn traveling path to suppress the generation of fluff. This fluff control device is provided with a plurality of friction disks, and by rotating the plurality of disks, a false twist is applied to the spun yarn traveling at the operation position, and the fluff projecting from the surface of the spun yarn constitutes the spun yarn. There is a multi-disc type that performs a fluff binding process by being wound around a fiber.

[0004]

However, in the automatic winder using the fluff control device of the plural disk type,
It is necessary to insert the spun yarn at the operation position between the plurality of disks at the start of yarn running, and this insertion is difficult. Therefore, as disclosed in Japanese Patent Application Laid-Open No. 2001-106430, a yarn holding lever is provided which is pivotable toward the operating position, and a spun yarn is pushed toward the operating position by the tip of the yarn holding lever, and the spun yarn is left as it is. Have been proposed to hold in a working position.

However, when the spun yarn is held at the operation position between the plurality of disks by the separate yarn holding levers, the operation position remains enclosed by the plurality of disks even if the lever is immediately retracted when the yarn is cut. In some cases, it is difficult for the cut yarn end to be quickly ejected from the plurality of disks, and in this case, the yarn may be wound around the disk. In addition, since the spun yarn is pushed by the yarn holding lever toward the operation position surrounded by a plurality of disks, particularly in the case of a thick spun yarn, a strong force is required to push the spun yarn to the operation position, and damage to the pushed spun yarn is caused. May increase.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and ensures that a spun yarn is inserted into a working position between a plurality of disks without damaging the spun yarn, and that the spun yarn is generated when the yarn is cut. It is an object of the present invention to provide an automatic winder provided with a fluff control device capable of reliably preventing winding of a thread around a disk to be wound.

[0007]

According to a first aspect of the present invention, there is provided an automatic winder comprising: a plurality of disks rotating in contact with a spun yarn unwound from a yarn supply package and wound into a winding package; And an automatic winder including a fluff control device that controls the fluff of spun yarn by rotating the plurality of disks, and a yarn splicing device that connects the yarn end on the yarn supply side and the yarn end on the winding side. Opening / closing means for moving at least one of the plurality of drive shafts with respect to the remaining drive shafts to open and close the yarn; and a yarn for guiding the yarn end into the fluff control device by moving the yarn end while capturing the yarn end. End guide means, and control means for controlling the opening and closing of the opening and closing means and the movement of the yarn end guiding means, wherein the control means controls the opening and closing means and the yarn end guiding means each time the yarn splicing device operates. To operate And butterflies. According to a second aspect of the present invention, in the automatic winder according to the first aspect, the yarn end guide means is a yarn supply side yarn end guide means for capturing the yarn end on the yarn supply side and guiding the yarn end into the fluff control device. The control means controls the yarn supply-side yarn end guide means so as to guide the yarn end on the yarn supply side to the fluff controller when the opening / closing means is opened.

[0008] At the time of a yarn splicing process performed at the time of exchanging the yarn supply package or at the time of forcibly cutting the spun yarn by detecting a yarn defect of the slab catcher, the control means controls the opening / closing means in conjunction with the yarn splicing operation. During the splicing operation, at least one of the drive shafts is opened with respect to the other drive shafts. Therefore, it is possible to reliably discharge and remove the cut yarn end from the fluff control device and to insert the spun yarn into the fluff control device by the yarn supply side yarn end guide means for guiding the yarn end on the yarn supply side to the yarn joining device. Done in When the yarn is cut, the drive shaft is immediately opened to release the working position in the plurality of disks, and the cut yarn ends are pulled out by suction or the like, so that the yarn is quickly discharged from the plurality of disks and wound on the disk. The occurrence of sticking can be prevented. Furthermore, since the yarn end on the yarn supply side is guided into the fluff control device from the state where the drive shaft is open, and then the drive shaft is closed, the spun yarn can be guided to the operating position in the fluff control device, so that the thick yarn can be guided. Even in this case, the spun yarn can be guided into a plurality of discs with a small force, and the damage when the spun yarn is pushed into the operation position can be reduced.

According to a third aspect of the present invention, in the automatic winder according to the second aspect, the yarn supply-side yarn end guide means uses a common yarn end on the yarn supply side captured in the yarn joining processing by the yarn joining device. The operation guides the inside of the fluff control device and the yarn joining device main body. Thereby, as the guide means for guiding the yarn end on the yarn supply side into the fluff control device during the yarn splicing processing, the yarn supply-side yarn end guide means for guiding the yarn end on the yarn supply side into the yarn splicer body can be used. Therefore, the yarn end can be reliably and substantially simultaneously guided into the fluff control device and the yarn splicing device main body without providing a special means for guiding the yarn end in the fluff control device.

According to a fourth aspect of the present invention, in the automatic winder according to any one of the first to third aspects, the yarn supplying side yarn end guiding means is in a standby state in a state where the yarn catching port is on the upstream side of the fluff control device. When the yarn is cut, the yarn end on the yarn supply side is captured upstream of the fluff control device. Accordingly, at the time of forcibly cutting the spun yarn, the yarn end on the yarn supply side at the operation position between the plurality of disks of the fluff control device is immediately sucked and removed by the yarn supply side yarn end guide means. In this way, when the yarn is cut, the yarn end on the yarn supply side is immediately captured by the yarn supply-side yarn end guide means, so that the yarn end on the yarn supply side that has been cut and becomes free can be wound around the disk. It can be prevented more reliably.

According to a fifth aspect of the present invention, there is provided an automatic winder according to any one of the first to fourth aspects, further comprising detecting means for detecting a thread break, wherein the control means immediately detects the thread break by the detecting means. The opening and closing means is operated in the opening direction. When the spun yarn is forcibly cut, the disk attached to the openable and closable drive shaft is immediately opened, that is, the disk is opened while the disk is rotating. It becomes difficult to wind up, and the yarn end is reliably captured by the yarn supply side yarn end guiding means.

According to a sixth aspect of the present invention, in the automatic winder according to any one of the first to fifth aspects, a confirming means for confirming the success of the piecing process by the piecing device is provided, and the control means is provided with the confirming means. After confirming the success of the piecing process, the opening / closing means is operated in the closing direction to close the drive shaft that was open at the time of the piecing process, and the rotation of the disc that was stopped at the time of the piecing process is performed. It is characterized by starting. Accordingly, it is possible to suppress the spun yarn from winding around the disk immediately after the piecing process by closing the drive shaft in a state where the piecing process has failed (a state in which the yarn is not connected). In addition, since the disk is brought into the stop state during the piecing process, the power for driving the rotation of the disk can be saved, and the timing for closing the drive shaft in the open state and the timing for starting the rotation of the disk in the stop state can be reduced. The adjustment can prevent the spun yarn from jumping out when the drive shaft is closed.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An automatic winder according to the present embodiment will be described below with reference to FIGS. FIG.
2 is a device layout diagram of the automatic winder 1. FIG.

An automatic winder 1 shown in FIG. 1 includes an unwinding assisting device 2 in a winding direction of a spun yarn Y of a yarn supplying package B.
A tension applying device 3 also serving as a twist preventing device, a friction disk type fluff control device 4, a yarn splicing device 5, a slab catcher 6, and a drive drum 7 are arranged in this order, and further a control unit (control means) for controlling these devices. 50.

A tension applying device 3 which also serves as a twist-preventing device is provided via a yarn unwinding assisting device 2 with a yarn feeding package B (yarn wound yarn winding body).
And a fuzz control device 4 and a gate type in which movable comb teeth 12 are alternately arranged with respect to fixed comb teeth 11. The comb teeth 12 can be engaged with or released from the comb teeth 11 by a swing lever (not shown), and the degree of the urging force of the swing lever can be changed by a rotary solenoid 13 as an actuator. Movable comb teeth 1
The urging force applied to 2 acts to apply a predetermined tension to the spun yarn Y that is passed between the fixed comb teeth 11 and the movable comb teeth 12 in a zigzag manner. In addition, the tension applying device 3 uses the yarn feeding package B by the false twisting action of the fluff controller 4 at the portion where the comb teeth 11 and the comb teeth 12 mesh.
It also functions as a twist stop device that limits the propagation of twist to the side.

The fluff controller 4 includes a disk 15 on a spun yarn Y unwound from a spinning bobbin (yarn supply package) B and wound around a winding tube Bf as a winding package P (winding wound body). By performing false twisting, the fluff is twisted into the fiber group constituting the spun yarn Y. Further, the fluff control device 4 simultaneously applies a feeding force to the spun yarn Y by the rotation of the disk 15. FIG.
FIG. 3 shows the arrangement of the disk 15 of the fluff controller 4.
FIG. 4 is a top view of the fluff controller 4, and FIG. 4 is a side view of the wing controller 4.

2 to 4, the fluff controller 4 disposed below the yarn splicing device 5 (upstream in the yarn running direction).
Is provided with a plurality of friction disks 15, a first drive shaft 16, a second drive shaft 17, a third drive shaft 18, a rotary drive device 19, and an opening / closing device (opening / closing means) 20.

A plurality of disks 15 (two in the illustrated example) are provided on each of the first to third drive shafts 16 to 18 arranged substantially in parallel. The first drive shaft 16 is supported by a fixed block (not shown) disposed downstream in the yarn traveling direction, and the second drive shaft 17 and the third drive shaft 18 are connected to the third drive shaft 18. And is supported by a block body 21 which can swing in a direction substantially perpendicular to the shaft. The rotation drive device 19 includes a belt drive 22 between the first drive shaft 16 and the third drive shaft 18, a belt drive 23 between the second drive shaft 17 and the third drive shaft 18, and a third drive shaft. , And a belt drive 25 between the motor 18 and the first to third drive shafts 1.
6 to 18 are simultaneously driven to rotate in the same direction. The opening / closing device 20 includes a first link 27 pivotally supported by the block body 21, a second link 28 pivotally supported at one end by the first link 27, and a second end fixed to a shaft 29 having a fixed position at the other end. Is composed of a drive cylinder 31 and a lever 30 whose other end is connected to a drive cylinder 31. When the drive cylinder 31 is shortened or extended, the block body 21 swings about the third drive shaft 18 in a direction approaching or moving away from the first drive shaft 16.

As shown in FIG. 2, the first to third drive shafts 16 to 18 in the closed state (fuzz suppression processing state) have a triangular shape as viewed from above so as to be parallel to the yarn path. Discs 15 having different axes are provided at the vertices a to c, respectively, and are arranged so as to partially overlap in the radial direction. Each of the disks 15 of the first to third drive shafts 16 to 18 includes a third drive shaft 18, a second drive shaft 17, a first drive shaft 16, a third drive shaft 18, a second drive shaft 17, and a first drive from below. The shafts 16 are displaced in the axial direction in the order of the shafts 16 (see FIG. 4).

Then, by rotating the first to third drive shafts 16 to 18 in the same direction, the drive shafts are passed through the central portion A between the disks 15 and bent in a zigzag shape by contact with the peripheral surface of each disk 15. The spun yarn Y is subjected to S-twisting or Z-twisting false twisting. Also, the shape of the peripheral surface of the disk 15 with which the spun yarn Y comes into contact in the yarn running direction is different from that of the disk 15 with respect to the spun yarn Y.
Is generated downstream in the yarn traveling direction. For this reason, the fluff controller 4 sends out the spun yarn Y to the winding package P side at the same time as the false twisting. Here, the central portion A is an inner portion of intersections d to f of the peripheral surfaces of the disks 5 of two different shafts partially overlapping in the radial direction of the first to third drive shafts 16 to 18 (three different shafts). (A common overlapping portion of the shaft disk 15).

As shown by a two-dot chain line in FIG. 2, when the second drive shaft 17 is opened (opened), the second drive shaft 1
The disk 15 of 7 moves away from the center part A. for that reason,
The spun yarn can be freely inserted into the central portion A, or the yarn end cut from the central portion A can be pulled out or pushed out without being subjected to the bending action. After inserting the spun yarn Y toward the central portion A with the disk 15 of the second drive shaft 17 open, when the disk 15 of the second drive shaft 17 is closed, the spun yarn Y is pushed into the central portion A, A state in which the spun yarn Y is held at the center portion A (action position) between the disks 15 is established.

The yarn splicing device 5 performs a yarn splicing process for joining the spun yarn Y (yarn end) on the yarn supply package B side and the spun yarn Y (yarn end) on the winding package P side. . The yarn splicing device 5 includes a yarn splicing device main body 35, a lower yarn suction guide member (lower yarn guiding means) 36 that guides the yarn end on the yarn supply package B side to the yarn splicing device main body 35, and a yarn winding guide P side. An upper thread suction guide member (upper thread guide means) 37 for guiding the yarn end to the yarn joining device main body 35 is provided. A lower thread suction guide member 36 serving as a yarn feeding side thread end guide means has a suction port 36 which can be opened and closed freely.
A state (a state shown in FIG. 1) in which the a (yarn catching port) is located below the tension applying device 3 is set as a standby position, and can be freely turned up and down around the shaft 36b. That is, in the standby state during winding of the bobbin thread, the lower thread suction guide member 36 is positioned such that the suction port 36a serving as the thread catching port is located upstream of the fluff controller 4 (between the fluff controller 4 and the yarn supply package P8). And
At the time of yarn cutting, the yarn end (lower yarn) on the yarn supply side can be immediately captured. When the spun yarn Y is forcibly cut, the fluff control device 4 and the tension applying device 3 serving also as a twist preventing device are opened, and the yarn end on the yarn supply side is sucked into the suction port 36a. When the lower thread suction guide member 36 is turned from the lower standby position to the upper guide position while holding the yarn end (lower thread) at the suction port 36a, the lower thread turns the yarn splicer main body 35 by one turning operation. And the fluff control device 4 are guided substantially simultaneously. The upper thread suction guide member 37 has a suction port 37a, and is rotatable vertically about a shaft 37b. When the spun yarn Y is forcibly cut, the spun yarn Y is swung from the lower standby position to the upper yarn end capturing position, and the suction port 37a is rotated.
, The yarn end (upper yarn) wound on the winding package P is suctioned and captured. Further, by turning downward, the upper thread is guided to the yarn joining device main body 35. Then, in the yarn splicing device main body 35, the upper yarn and the lower yarn are spliced using a fluid such as compressed air, for example.

The slab catcher 6 is, for example, a capacitance-type or optical-type yarn thickness detecting device, and detects a yarn defect such as a slab by processing a signal from the slab catcher 6 by an analyzer 40. When a yarn defect is detected, the spun yarn Y being wound up is cut by the attached cutter 6a,
In the piecing operation performed by the piecing device 5, a defective portion is removed, and the yarn end on the yarn supply package B side and the yarn end on the winding package P side are spliced.

When the drive drum 7 rotates while the spun yarn Y is connected between the yarn supply package B and the winding package P, the spun yarn Y unwound from the yarn supply package B is wound around the winding package P. The spun yarn Y is returned and runs from bottom to top. When the spun yarn Y travels, the slab catcher 6 detects a variation in the yarn thickness. When the variation is detected, the slab catcher 6 outputs a yarn traveling signal FW to the control unit 50.

When the spun yarn Y in the yarn supply package B is exhausted and replaced with a new yarn supply package B, or when the slab catcher 6 detects a yarn defect and forcibly cuts the yarn, the yarn joining device 5 is used. When the drive drum 7 is rotated after the piecing process, the piecing signal is output when the piecing process is successful. Conversely, when the piecing process fails, the yarn traveling signal FW is not output. Therefore, by confirming the output of the yarn traveling signal FW (confirming that the spun yarn Y travels by rotating the driving drum 7), it can be confirmed that the piecing process has been successful. The control of the yarn traveling signal FW is performed by the control unit 50.
As described above, the slab catcher 6 and the control unit 50 constitute a confirmation unit that confirms that the piecing process of the spun yarn Y has been successful. Further, when the yarn running signal FW is not output during the yarn joining process, the yarn break is detected. As described above, the slab catcher 6 and the control unit 50 constitute a detecting unit that detects the cut of the spun yarn Y.

The drive drum 7 is configured as a traverse drum having a traverse groove. The drive drum 7 comes into contact with the take-up package P to rotate the take-up package P, and also controls the spun yarn Y to be taken up by the take-up package P. Do a traverse exercise. The drive drum 7 is driven by a motor 41 whose rotation speed is controlled by an inverter 42. Based on the control signal output from the control unit 50, the motor 4
1 is controlled.

The control unit 50 includes an input device 51, and controls the driving of the driving drum 7 and the fluff control device 4 (disk 1).
5), and the drive control of the yarn joining device 5 is performed. As shown in FIG. 5, when the drive drum 7 is rotated after the splicing and the yarn traveling signal FW is transmitted from the slab catcher 6, the second drive shaft 17 of the fluff control device 1 is closed immediately, and then the friction is immediately applied. The rotation of the disk 15 is started. That is, the control unit 50
Confirms whether the piecing process of the spun yarn Y was successful,
After confirming that the piecing process was successful, the disc 15 that was open at the time of the piecing process was closed,
The fluff controller 4 is controlled to start the rotation of the disk 15 which has been stopped at the time of the piecing process. As shown in FIG. 5, when the yarn running signal FW from the slab catcher 6 is not transmitted due to the yarn cutting, the disk 15 is opened immediately and the disk rotation motor 24 is stopped to stop the rotation of the disk 15. Stop power supply. Since the rotating member including the disk 15 has inertia, the disk 15 is completely stopped almost simultaneously with or completely after the disk 15 is fully opened. That is,
The control unit 50 detects the cut of the spun yarn Y, and
Until the inertial rotation of the disk stops, open the disk 15
The fluff controller 4 is controlled. As described above, the disc 15 is in the rotating state for a predetermined time after the thread is cut, but since the disc 15 is released immediately after the thread is cut, the cut end of the thread is prevented from winding around the rotating disc 15. At the same time, the lower yarn suction guide member 36 can reliably capture the yarn. The control unit 50 controls the lower thread guide member 36 so that the lower thread guide member 36 can catch the yarn immediately after the thread is cut. That is, after the yarn is cut, the control unit 50
Since the thread is captured by the lower thread guide member before the thread is fully opened (during the opening operation of the disk), the yarn end on the yarn supply side can be reliably captured.

Next, the operation of the above-described automatic winder 1 will be described with reference to FIGS. FIG. 1 shows a state in which the spun yarn Y is wound, that is, a state in which the spun yarn Y is connected between the yarn supplying package B and the winding package P. Will be described after the yarn is not connected, that is, after the yarn supply package B is replaced, after the spun yarn Y is forcibly cut by detecting a yarn defect of the slab catcher 6, or after natural yarn breakage due to high tension or the like. At this time, the rotation of the disk 15 is stopped, and the disk 15 is in an open state.

After replacing the yarn supply package B, after forcibly cutting the spun yarn Y by detecting a yarn defect of the slab catcher, or after natural yarn breakage due to high tension or the like, the yarn splicing device 5
The splicing process of the spun yarn Y is performed, and the drive drum 7 is rotated. Immediately after the start of winding, the control unit 50 detects from the slab catcher 6 whether or not the piecing process of the spun yarn Y has succeeded, that is, whether or not the spun yarn Y has been connected, based on the yarn traveling signal FW. In addition, the control unit 50 does not start the rotation of each disk 15 until the splicing process is successful and it is confirmed that the spun yarn Y is connected, and the disk 15 is opened (see FIG. 2: two-dot chain line). (# 1 in FIG. 5). Therefore, in a state where the spun yarn Y is not connected due to the failure of the piecing process, the fluff control device 4 is in the closed state (the drive shaft 1).
Each disk 15 is not rotated in a state in which the disk 7 is closed.

Here, it is checked whether or not the spun yarn Y is connected. If the drive drum 7 is rotated while the spun yarn Y is connected, the spun yarn Y travels, but the spun yarn Y is not connected. Utilizing the fact that the spun yarn Y does not travel even when the drive drum 7 is rotated, the slab catcher 6 is used based on a yarn traveling signal FW generated based on a change in an electric signal according to the yarn thickness. And after the piecing process,
When the spun yarn Y runs normally, that is, when the yarn traveling signal FW is input to the control unit 50 from the slab catcher 6 immediately after the forward rotation of the drive drum 7 is started, it is determined that the spun yarn Y is connected, When the spun yarn Y does not travel, that is, when the yarn traveling signal FW is not input immediately after starting the forward rotation of the drive drum 7 after the piecing process, it is determined that the spun yarn Y is not connected.

As soon as the yarn traveling signal FW is input, that is, immediately after the spun yarn Y is connected and the traveling of the spun yarn Y is started (# 2 in FIG. 5), the yarn is released during the splicing process. The disks 15 in the state are closed, and at the end of the closing (at least after the spun yarn Y comes into contact with the peripheral surface of the disks 15 during the closing operation), each disk 1
Start rotating 5 in the same direction. When the disk 15 is rotated while the disk 15 is open (at least before the spun yarn Y comes into contact with the peripheral surface of the disk 15 during the closing operation), the disks 15 of the three drive shafts 16 to 18 are simultaneously rotated. May be pushed out from the center portion A (see FIG. 2) by the disk 15 of the fixed drive shaft, but the control unit 50 closes the disk 15 (the disk in the open state). At about the same time as the completion of the closing of the 15 or after the completion of the closing), the spun yarn Y does not jump out of the center portion A because the disk 15 is rotated.

The control unit 50 determines that the rotation speed of the drive drum 7 is equal to the rotation speed C corresponding to the set yarn traveling speed (set winding speed).
The rotational speed of the drive drum D is increased with a linear gradient until the rotational speed becomes 1 and the rotational speed of the disk 15 is increased with a linear gradient until the rotational speed of the disk 15 reaches the set rotational speed C2 (# 3 in FIG. 5). . In the present embodiment, the rotation speed of the drive drum 7 is equal to the set speed C1.
In order to obtain a sufficient fluff binding effect at the point of time, the rotation speed of the disk 15 is set to C2 before the rotation speed of the drive drum 7 becomes C1.

After the rotation speeds of the drive drum 7 and the disk 15 become C1 and C2, respectively, the spun yarn Y is rewound onto the winding package P while maintaining the respective rotation speeds constant (# in FIG. 5). 4).

When the yarn traveling signal FW is not input due to a yarn breakage or the like, that is, when the spun yarn Y does not travel,
The control unit 50 controls the drive drum 7 and the disk 15 so that the drive drum 7 and the disk 15 stand still (# 5 in FIG. 5). At this time, the control unit 50
At about the same time when the disk 15 is opened, the deceleration of the disk 15 is started, and the disk 15 is controlled to be fully opened while the disk 15 is rotating by inertia. Here, by giving priority to opening the disk 15 first, the yarn end is released from the center portion A (see FIG. 2), and it is possible to prevent the yarn from being wound around the rotating disk 15. Also, the lower thread suction guide member 3
6 ensures that the lower thread is sucked and caught.

The embodiment described above can be modified and implemented as follows. (1) Of the three drive shafts 16, 17, 18, one drive shaft 17 is not limited to the one that can be opened and closed with respect to the remaining drive shafts 16, 18. The two drive shafts 16 and 17 can be freely opened and closed with respect to the remaining drive shaft 18.

(2) The opening / closing means 20 includes the links 27 and 28
The present invention is not limited to the one using the drive cylinder 31 and the drive cylinder 31, but various drive forms such as those operated by a drive motor can be adopted.

(3) The structure for rotatably supporting the drive shafts 16, 17, 18 is not limited to a cantilever support that supports only one end, but a double-support support that supports both ends by bearings. You may.

(4) The structure of the belt drives 22, 23 is not limited to the illustrated example. For example, a single triangular belt is wound between the motor 24 for driving the disk rotation and the first and third drive shafts 16 and 18 so as to open and close the second drive shaft 17 and the center of the opening and closing movement. Another belt can be wound around the third drive shaft 18.

[0039]

In the automatic winder according to the first and second aspects, the drive shaft is immediately opened at the time of thread cutting, and the cut thread ends are quickly discharged from a plurality of discs to prevent the thread from being wound around the disc. By inserting the spun yarn with the drive shaft open and then closing the drive shaft, the spun yarn can be guided into multiple disks with a small force even with a thick yarn, reducing yarn damage. This has the effect that it can be performed.

According to a third aspect of the present invention, the automatic winder guides the yarn end on the yarn supply side into the fluff control device during the yarn joining processing, and guides the yarn end on the yarn supply side into the yarn splicer body. Since the side yarn end guide means can be used, the yarn end can be reliably and substantially simultaneously guided into the fluff control device and the yarn splicing device main body without providing a special means for guiding the yarn end in the fluff control device. This has the effect.

In the automatic winder according to the fourth aspect, when the yarn is cut,
Since the yarn end on the yarn supplying side is immediately captured by the yarn supplying side yarn end guiding means, it is possible to more reliably prevent the yarn end on the yarn supplying side that has been cut and becomes free from being wound around the disk. .

In the automatic winder according to the fifth aspect, the disk is opened while the disk is rotating, the yarn end is hardly wound around the rotating disk, and the yarn end is captured by the yarn feeding side yarn end guide means. Is performed reliably.

In the automatic winder according to the sixth aspect, the drive shaft is closed in a state where the piecing process has failed, so that the spun yarn can be prevented from winding around the disk immediately after the piecing process, and the spun yarn can be opened. By adjusting the timing of closing the drive shaft and the timing of starting the rotation of the disk in the stopped state, it is possible to prevent the spun yarn from jumping out when the drive shaft is closed.

[Brief description of the drawings]

FIG. 1 is a front view showing a device arrangement of an automatic winder according to the present invention.

FIG. 2 is a layout diagram of disks of the fluff control device.

FIG. 3 is a top view of the fluff control device.

FIG. 4 is a side view of the fluff control device.

FIG. 5 is a time chart for explaining the operation of the automatic winder of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Automatic winder 4 Fuzz control device 5 Yarn splicing device 6 Slab catcher (means for detecting yarn breakage, and for confirming successful yarn splicing processing) 15 Disk 16 First drive shaft 17 Second drive shaft 18 Third drive shaft 20 Opening / closing device ( Opening / closing means) 35 yarn splicing device main body 36 lower thread suction guide member (yarn feeding side yarn end guiding means) 50 control unit (control means) Y spun yarn B yarn feeding package P winding package

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 3F110 AA00 BA00 CA03 DB18 4L056 AA45 CA06 CA16 CA52 CA62 EA04 EA13 EA17 EA29 EA32 EB13 EB16 EC02 EC65 EC85 FB12

Claims (6)

[Claims] 1. A plurality of discs, which come into contact with and rotate on a spun yarn unwound from a yarn supply package and wound on a take-up package, are respectively attached to a plurality of drive shafts, and the fluff of the spun yarn is caused by rotation of the plurality of discs. And an automatic winder including a yarn joining device that connects a yarn end on a yarn feeding side and a yarn end on a winding side, wherein at least one of the plurality of drive shafts is Opening / closing means for moving and opening / closing the yarn end, yarn end guide means for guiding the yarn end into the fluff control device by moving while catching the yarn end, opening / closing of the opening / closing means and the yarn end guide Control means for controlling movement of the means, wherein the control means activates the opening / closing means and the yarn end guiding means each time the yarn joining device is operated. 2. The yarn end guide means is yarn supply side yarn end guide means for catching the yarn end on the yarn supply side and guiding the yarn end into the fluff control device. 2. The automatic winder according to claim 1, wherein the yarn feeding side yarn end guiding means is controlled so as to guide the yarn end on the yarn feeding side to the fluff control device in the state in which the yarn is fed. 3. The yarn feeding side yarn end guide means, in a yarn splicing process performed by the yarn splicing device, causes the captured yarn feeding side yarn end to be moved into the fluff control device and the yarn splicing device main body by a common operation. The automatic winder according to claim 2, which guides. 4. The yarn feeding side yarn end guide means is on standby in a state where the yarn catching port is on the upstream side of the fluff control device,
4. The automatic winder according to claim 3, wherein a yarn end on a yarn feeding side is caught upstream of the fluff control device at the time of yarn cutting. 5. A detecting means for detecting a yarn break, wherein said control means detects a yarn break by said detecting means.
The automatic winder according to any one of claims 1 to 4, wherein the opening / closing means is immediately operated in the opening direction. 6. A piecing device for confirming the success of the piecing process by the piecing device, wherein the control device confirms the success of the piecing process by the confirming device, and then opens the piecing process during the piecing process. The method according to any one of claims 1 to 5, wherein the opening / closing means is operated in a closing direction to close the drive shaft, and rotation of the disc which has been stopped at the time of the piecing process is started. Automatic winder.