JPH09208130A - Unnecessary thread eliminating method for take-up package and device thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent troubles in warping work and the like in the following process by eliminating a specified quantity of thread in the final take-up part of a take-up package before/in doffing of the take-up package. SOLUTION: The tip recess part 8a in a thread pick-up member 8 is engaged with a thread 2 arranged from a joint part 2c in the final take-up part of a take-up package 4 to a thread feeding package by means of a drive of a traverse drum 3. When the thread 2 is conveyed upward by means of the thread pick-up member 8, a clamp cutter 9a is brought close to the thread 2 and the tread 2 is cut with its thread end 2e clamped and held, and then, the thread pick-up member 8 sucking the thread end 2d from a suction port 10b to a suction tube 10a is returned to the waiting position. Subsequently, engagement between the thread pick-up member 8 and the thread end 2d is released, while the traverse drum 3 is rotated in the reverse direction, so that the package 4 is reversely rotated until the joint part 2c is sucked into a dust box 10c. Suction of the joint part 2c into the dust box 10c is detected by means of a joint detecting sensor, and a shutter serving as a cutter at the same time in an inlet 10c' is operated so as to cut the thread 2, while the sucking action is stopped.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic winder or the like, which is capable of forming a seam wound in a final winding portion of a fully wound winding package, a different type of yarn, a yarn portion of an inner layer of a yarn supplying package and the like. The present invention relates to a method and an apparatus for removing unnecessary yarn from a winding package for removing unnecessary yarn.

[0002]

2. Description of the Related Art In an automatic winder or the like, when the winding package is fully wound, the yarn connecting the yarn supplying package to the winding package is forcibly cut once.
At the time of the subsequent doffing, the doffing device needs to pick up the yarn that is connected to the yarn supplying package, so that the yarn end of the yarn supplying package and the yarn end of the winding package that has been fully wound are connected and connected. The doffing is done after winding the eyes on the final winding portion of the winding package which has been fully wound.

[0003]

As described above, there is a seam in the final winding portion of the fully wound winding package wound in the conventional automatic winder or the like. Therefore, in the warper or the like in the next step, there is a problem that the seams existing in the final winding portion of the winding package overlap each other.

Further, in the above-mentioned conventional automatic winder and the like, one winding package is rewound from one yarn feeding package. In such a case, the wound feeding package is wound. If the yarn package and the next yarn supply package are wound with different types of yarn, the different types of yarn wound on the next winding yarn supply package will be wound in the final winding portion of the full winding package. There is a problem of getting caught.

Further, the dyed yarn supplying package may be rewound. In such a yarn supplying package, the innermost layer portion has uneven dyeing such as deeper dyeing or lighter dyeing than other portions. However, there is a problem that even such a part with uneven dyeing is involved.

Furthermore, the innermost layer portion of the yarn supplying package is damaged between the winding tube of the yarn supplying package and the winding drum of the winder when the yarn supplying package is wound and formed. However, it is not preferable that the innermost layer portion that has been damaged in this way is wound up in the winding package.

An object of the present invention is to provide a method and an apparatus for removing unnecessary yarn from a winding package for solving the problems of the above-described conventional automatic winder and the like.

[0008]

In order to achieve the above-mentioned object, the present invention provides a method for removing unnecessary yarn from a winding package, which is, firstly, before doffing or doffing the winding package. First, the yarn in the final winding portion of the winding package is removed by a predetermined amount. Secondly, the yarn in the inner layer portion of the yarn supplying package wound in the final winding portion of the winding package is removed. Thirdly, the yarn is removed from a predetermined amount, and thirdly, the yarn of the outer layer portion of the next yarn feeding package, which is wound after the yarn of the inner layer portion of the yarn feeding package, is wound around the final winding portion of the winding package. In the unnecessary yarn removing device of the winding package, firstly, the suction means for sucking the yarn of the final winding portion of the winding package and the unwinding of the winding package. Means to rotate in the direction And means for disconnecting the yarn sucked by the suction means from the winding package, which each of these means is to work in conjunction with the doffing device, the second
, A doffing device is configured to run along a large number of winding units, a dust box for storing the yarn of the final winding portion removed is provided in the doffing device, and the yarn accumulated from the dust box is removed by suction. The removing means is provided at the end of the machine base consisting of a number of winding units.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a schematic front view of one winding unit such as an automatic winder showing an unnecessary yarn removing operation. FIG. 1 is a schematic view of one winding unit such as an automatic winder showing an unnecessary yarn removing operation following FIG. FIG. 2 is a perspective view, FIG. 3 is a schematic perspective view of one winding unit such as an automatic winder showing an operation of removing unnecessary yarns following FIG. 2, and FIG. 4 is a schematic front view of an automatic winder, a doffing device and the like. 5, which is a partially enlarged perspective view of a dust box or the like of the doffing device, and FIG. 6 which is a schematic front view of one winding unit such as an automatic winder showing an operation of rewinding the dyed yarn supplying package. The method and apparatus for removing the unnecessary yarn from the winding package according to the present invention will be described. Not.

As shown in FIG. 1A, in each winding unit w, the yarn 2 unwound from the yarn supplying package 1 comes into contact with a traverse drum 3 and is rotationally driven by the drum 3. It is wound up by the winding package 4. The winding tube 5 of the winding package 4 is
It is rotatably supported by a known cradle arm (not shown). The yarn supply package 1 in the figure shows a spinning bobbin formed by a ring spinning machine. In the figure, M is a yarn monitor that monitors whether or not the yarn 2 is running, and S is a yarn such as a splicer that connects the yarn end of the yarn supplying package 1 and the yarn end of the winding package 4. SN is a splicing device, and SN is a yarn feeding suction guide unit that sucks and holds the yarn end of the yarn feeding package 1 and guides it to the yarn splicing device S. Further, SP sucks the yarn end of the winding package 4. It is a winding yarn suction guide means for holding and guiding the yarn to the yarn splicing device S.

When the winding package 4 is fully wound (a predetermined amount of winding), the yarn feeding package 1 is fed through an appropriate control device based on a signal from a known full winding detector (not shown). The cutter 6 disposed above operates to cut the yarn 2 between the yarn supplying package 1 and the winding package 4 as shown in FIG. The yarn end 2a on the package 1 side is sucked by the suction tube 7.

By the way, the doffing device (reference numeral D in FIG. 4) needs to pick up the yarn end 2a on the yarn feeding package 1 side at the time of doffing work, but the doffing device D is arranged below. Since it is difficult to pick up the yarn end 2a on the yarn feeding package 1 side which is sucked by the sucked suction pipe 7,
As shown in FIG. 1 (c), the yarn end 2a of the yarn supplying package 1 and the yarn end 2b unwound from the fully wound winding package 4 are separated by a yarn splicing device S such as a splicer. Connect. Therefore, as shown in FIG. 1B, the suction port of the winding yarn suction guide means SP approaches the winding package 4, sucks and holds the yarn end of the winding package 4, and By returning to the original position shown in FIG. 1 (c), the yarn end of the winding package 4 is guided to the yarn splicing device S, and the suction port of the yarn feeding suction guide means SN is moved to the position shown in FIG.
As shown in (b), it approaches the suction tube 7, sucks and holds the yarn end of the yarn feeding package 1 from the suction tube 7, and returns to the original position shown in FIG. 1 (c). By returning, the yarn end of the yarn supplying package 1 is guided to the yarn joining device S.

Next, the traverse drum 3 is restarted to rotate the winding package 4 to run the yarn 2, and the yarn monitor M travels the yarn 2 (that is, the yarn 2 is connected). ) Is confirmed, and then the drum 3 is stopped. As a result, as shown in FIG. 1D, the joint 2c
, But is wound into a substantially fixed position on the final winding portion of the full-wrapped package.

FIG. 6 shows a case where the yarn supplying package 1A is wound around the winding tube 1Aa by an automatic winder or the like to form a package, and the dyed yarn supplying package 1A is rewound.
In this example, a case where one winding package 4 is formed from one yarn supply package 1A is shown. Although a cheese-shaped yarn supply package 1A is shown in the figure, it may be a cone-shaped one, of course.

FIG. 6A shows a state in which the winding package 4 is fully wound, and at this time, the yarn supplying package 1A is an empty package. When the winding package 4 is fully wound, a signal is emitted from the full winding detector as in the case of FIG. Then, the empty package 1A is discharged from the winding unit w, and a new fully wound yarn supplying package 1A is supplied to the winding unit w as shown in FIG. 6B. Then, the suction port of the winding yarn suction guide means SP approaches the winding package 4 and catches the yarn end of the winding package 4. Further, the yarn feeding / suction guide means S
The suction port of N is located above the yarn supplying package 1A, and the yarn end inserted into the winding tube 1Aa of the yarn supplying package 1A is blown up by the yarn end blowing means BL, whereby the yarn feeding guide The yarn end of the yarn feeding package 1A is captured by the means SN. After that, as in the case of FIG. 1, the yarn end of the yarn supplying package 1A and the yarn end of the winding package 4 are connected to each other (FIG. 6C), and the traveling of the yarn 2 is confirmed. As a result, the joint 2c is wound around the final winding portion of the winding package (FIG. 6D).

In both the case of FIG. 1 and the case of FIG. 6, a doffing signal is issued after the above-described yarn splicing work is completed, and the doffing signal is input to an appropriate control device to be installed in a large number. The doffing device D that travels along the winding unit w travels to the front surface of the winding unit w that issues a doffing signal, and the doffing device D performs the doffing operation. The doffing device D includes a lever-shaped yarn pick-up member 8, a lever-shaped clamp cutter member 9, and a yarn suction member 10.

First, as shown in FIG. 2 (a), the yarn feeding packages 1, 1A from the joint 2c wound in the final winding portion of the winding package 4 which is fully wound.
To the portion of the yarn 2 reaching
From behind, the tip of the yarn pick-up member 8 is applied, and the traverse drum 3 is driven to engage the yarn 2 with the recess 8a formed in the tip of the yarn pick-up member 8.

Next, as shown in FIG. 2 (b), the yarn pick-up member 8 is rotated forward to move the yarn 2 upward while hooking it in the recess 8a of the yarn pick-up member 8.
Simultaneously with the thread picking operation of the thread picking member 8 or before or after the thread picking operation, the clamp cutter member 9 is moved so that the clamp cutter 9a disposed at the tip of the clamp cutter member 9 is moved to the thread picking member. Thread 2 picked up by 8
Move to the operating position close to. In addition, the thread suction member 1
The suction port 10b of the zero suction tube 10a is arranged between the clamp cutter 9a that has moved to the operating position and the winding package 4.

Next, the clamp cutter 9a of the clamp cutter member 9 is operated to cut the yarn 2 picked up by the yarn pick-up member 8 and the yarn end 2e formed on the yarn feeding package 1, 1A side after cutting. Hold it. The cut yarn end 2d on the winding package 4 side is sucked into the suction pipe 10a through the suction port 10b. Simultaneously with or after the suction work, the yarn pick-up member 8
2 is returned to the standby position shown in FIG. 2A, the engagement between the yarn pick-up member 8 and the yarn end 2d is released, and the traverse drum 3 is rotated in the reverse direction to finish the full winding package 4. The fully wound package 4 is reversed (rotated in the unwinding direction) until the joint 2c wound around the winding portion is sucked into the dust box 10c of the yarn suction member 10. The reverse rotation time of the full winding package 4 is controlled by the number of reverse rotations of the traverse drum 3 or the reverse rotation time since the position of the joint 2c wound in the final winding portion of the full winding package is substantially constant. You can Also, the dust box 10
A joint detection sensor is provided at the entrance 10c 'of c,
The reverse rotation of the traverse drum 3 can be stopped when the joint detection sensor detects the joint 2c.

As mentioned above, the clamp cutter member 9
After the yarn 2 is cut by the clamp cutter 9a, the cut yarn end 2d on the winding package 4 side is sucked into the suction port 10
b instead of being sucked by the suction tube 10a
Alternatively, the yarn 2 may be cut by operating the clamp cutter 9a after sucking the yarn into the suction pipe 10a of the suction port 10b.

The joint 2c wound around the final winding portion of the full winding package 4 is disposed at the inlet 10c 'of the dust box 10c after being sucked into the dust box 10c of the yarn suction member 10 and is not shown. The shutter / cutter is operated to cut the yarn 2 sucked into the dust box 10c and stop the suction work of the suction pipe 10a. In addition, 10d is a known air suction device arranged in the middle of the suction pipe 10a.

Next, if necessary, the traverse drum 3 is rotationally driven to rotate the fully wound package 4 in the winding direction, so that the yarn 2 remaining in the suction tube 10a or the like is fully wound into the fully wound package 4. After winding, the rotation of the traverse drum 3 is stopped.

After that, as is known, the cradle arm supporting the full winding package 4 is opened, and the full winding package 4 is doffed. That is, the fully wound package 4 is discharged from the winding position and the winding tube 5 is arranged between the gripping disks 11a and 11b of the cradle arm as shown in FIG. 3 (a). At the same time as or before or after the arranging work of the winding tube 5 between the holding disks 11a and 11b of the cradle arm, the yarn end 2e of the yarn 2 reaching the yarn supplying packages 1 and 1A is held. The clamp cutter 9a of the clamp cutter member 9 is moved to a position above the take-up tube 5 so that the yarn end 2e held by the clamp cutter 9a is moved to the one end 5a of the take-up tube 5 and the cradle arm. It is arranged between the one gripping disks 11b. Then, as is known, the grip disks 11a and 11b of the cradle arm are brought close to each other, and the thread end 2 gripped by the clamp cutter 9a is moved.
e is clamped by one end 5a of the winding tube 5 and one holding disk 11b of the cradle arm.

Then, the cradle arm is rotated in the direction of the traverse drum 3 to bring the winding tube 5 supported by the cradle arm into contact with the traverse drum 3, as shown in FIG. 3 (b). As described above, the winding of the yarn 2 is restarted by rotating the winding tube 5.

After finishing the doffing work as described above,
The doffing device D moves to the standby position or the next winding unit w that requires doffing work.

As described above, a predetermined amount of the yarn at the final winding portion of the fully wound winding package 4 is removed before or at the time of doffing. The joint 2c that is wound up on the 4 is the winding package 4
It is possible to obtain the winding package 4 in which the joint 2c does not exist at a fixed position of the final winding portion. Also, removing the joint 2c part means
In the case of FIG. 6, the yarn portion of the next yarn supplying package 1A is also removed. Therefore, the next yarn feeding package 1
The yarn A is not wound around the winding package 4. Further, more yarn in the final winding portion is removed beyond the joint 2c. That is, in the case of FIG. 6, so that the yarn in the innermost layer portion of the yarn supplying package 1A can be removed,
By removing the yarn in the final winding portion, the yarn in the innermost layer portion of the yarn supplying package 1A can be removed from the winding package 4, and the winding package 4 can be obtained without uneven dyeing.

If only the purpose is to remove the yarn in the innermost layer portion of the yarn supplying package 1A, in the state of FIG. 6 (b), the final winding of the winding package 4 is performed by the winding yarn suction guide means SP. It is also possible to remove a predetermined amount of the yarn in the take-up portion, that is, until the yarn in the innermost layer portion of the yarn supplying package 1A is removed. In this case, the traverse drum 3 is reversed and the yarn wound on the winding package 4 is unwound, and the yarn unwound by the suction guide means SP is sucked and the sucked yarn is
The winding package 4 is formed by a cutter provided in the yarn splicing device S.
And remove the thread.

If the doffing device D is changed so that the yarn ends of the yarn feeding packages 1, 1A can be directly grasped by the doffing device D near the yarn feeding packages 1, 1A, before the doffing. Since it is not necessary to connect the yarn from the yarn supplying packages 1 and 1A to the winding package 4, in such a case, the yarn of the final winding portion of the winding package 4 is taken by the winding yarn suction guide means SP. If it is removed, it is not necessary to provide the doffing device D with suction means such as the suction member 10. In this case, it is preferable to prevent the splicing from succeeding in order not to form a joint.

Further, in the above-described embodiment, the yarn pick-up member 8 receives the yarn 2 from the joint 2c wound in the final winding portion of the full winding package to the yarn supplying packages 1, 1A.
However, depending on the position of the clamp cutter 9a of the clamp cutter member 9 or the position of the suction port 10b of the suction tube 10a, the yarn 2 may be directly picked up without being picked up by the yarn pick-up member 8. Since the yarn end of the winding package 4 can be sucked by the suction tube 10a and the yarn end of the yarn supplying package 1.1A can be gripped by the clamp cutter 9a of the clamp cutter member 9, in such a case, The pick-up member 8 can be omitted.

Next, using FIG. 4 which is a schematic front view of the automatic winder and the doffing device and FIG. 5 which is a partially enlarged perspective view of the dust box 10c of the doffing device and the like, the thread waste accumulated in the dust box 10c is used. The removing means will be described.

The doffing device D is configured to run in front of the winding unit w of the automatic winder along a rail 12 arranged on the ceiling or the like. Wheels d1 that engage are provided. 10 c is the dust box 10 c in which the yarn waste such as the joint 2 c wound around the final winding portion of the full-winding package 4 is stored. Reference numeral 13 denotes a side box in which a driving device, a control device, and the like arranged at the end of the automatic winder are incorporated, and an air suction device 14 having a filter is arranged in the side box 13.

Reference numeral 15 is a connecting plate disposed at the end of the automatic winder, and the connecting plate 15 is provided with a through hole 15a. The back surface of the connecting plate 15 in which the through hole 15a is located and the air suction device 14 are connected by a duct 16. Reference numeral 17 denotes a butterfly shutter that is disposed on the surface of the connecting plate 15 and has a substantially V-shaped front shape, and is configured so as to be able to swing in the left-right direction about a shaft 18. As shown in FIG. 4, the butterfly shutter 17 is always inclined to the right so that the left side portion 17a of the butterfly shutter 17 closes the through hole 15a formed in the connecting plate 15. There is. On the other hand, a through hole 19 is formed in the back wall of the dust box 10c, and a pipe 20 is connected to the through hole 19.

As shown in FIG. 4, when the doffing device D suspended on the rail 12 travels in the direction of the side box 13, the pipe 20 attached to the back wall of the dust box 10c is connected to the connecting plate 15. The butterfly shutter 17 is inserted into the concave portion 17b of the butterfly shutter 17 that closes the through hole 15a formed therein, and the butterfly shutter 17 is rotated clockwise about the shaft 18. Then, the through hole 15a bored in the connecting plate 15 is opened, the through hole 15a and the pipe 20 of the dust box 10c are connected, and the duct 16 connected to the air suction device 14 which is always in the operating state,
The yarn waste stored in the dust box 10c is removed by the air suction device 14.

After the yarn waste stored in the dust box 10c is removed, the doffing device D suspended on the rail 12 is run in the direction opposite to the side box 13 and enters the recess 17b of the butterfly shutter 17. The pipe 20 of the dust box 10c that opens causes the butterfly shutter 17 to rotate counterclockwise about the shaft 18. Then, the right side portion 17a of the butterfly shutter 17 closes the through hole 15a formed in the connecting plate 15, as shown in FIG.

[0035]

Since the present invention is constructed as described above, the following effects can be obtained.

Since it is possible to remove the seams and heterogeneous yarns existing in the final winding portion of the fully wound winding package, and further the yarns in the innermost layer portion of the yarn supplying package, it is possible to arrange the next step. It is possible to prevent problems such as troubles during maintenance work and uneven dyeing of the fabric.

Since the thread waste stored in the doffing device can be automatically removed as the doffing device runs, maintenance management of the doffing device becomes easy.

[Brief description of drawings]

FIG. 1 is a schematic front view of one winding unit such as an automatic winder showing an unnecessary yarn removing operation.

FIG. 2 is a schematic perspective view of one winding unit such as an automatic winder showing an operation of removing unnecessary yarns following FIG.

FIG. 3 is a schematic perspective view of one winding unit such as an automatic winder showing the operation of removing unnecessary yarns following FIG.

FIG. 4 is a schematic front view of an automatic winder, a doffing device, and the like.

FIG. 5 is a partially enlarged perspective view of a dust box or the like of the doffing device.

FIG. 6 is a schematic front view of one winding unit such as an automatic winder showing an operation of rewinding the yarn supplying package after dyeing.

[Explanation of symbols]

 1, 1A ・ ・ ・ ・ Yarn supply package 2 ・ ・ ・ ・ ・ ・ ・ ・ Yarn 2c ・ ・ ・ ・ Seam 3 ・ ・ ・ ・ ・ ・ ・ ・ Twilling drum 4 ・ ・ ・ ・ Full winding package 6 ... Cutter 8 ... Thread pick-up member 9 ... Clamp cutter member 10 ... Thread suction member 10a ... Suction tube 10c ... Dust box

Claims (5)

[Claims] 1. A method for removing unnecessary yarn from a winding package, which comprises removing a predetermined amount of yarn from the final winding portion of the winding package before or during doffing. 2. The unnecessary yarn removing method for a winding package according to claim 1, wherein a predetermined amount of the yarn in the inner layer portion of the yarn supplying package wound around the final winding portion of the winding package is removed. 3. The yarn of the outer layer portion of the next yarn feeding package, which is wound after the yarn of the inner layer portion of the yarn feeding package, is removed from the final winding portion of the winding package. Alternatively, the unnecessary yarn removing method of the winding package according to claim 2. 4. Suction means for sucking the yarn of the final winding portion of the winding package, means for rotating the winding package in the unwinding direction, and means for separating the yarn sucked by the suction means from the winding package. An unnecessary yarn removing device for a winding package, characterized in that each of these means operates in association with a doffing device. 5. A doffing device is configured to run along a large number of winding units, the doffing device is provided with a dust box for storing the removed yarn of the final winding portion, and the yarn accumulated from the dust box. 5. The unnecessary yarn removing device for a winding package according to claim 4, wherein a removing means for sucking and removing the yarn is provided at an end of a machine base including a number of winding units.