JPH0930732A - Yarn rewinder - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable productivity to be more improved by reducing transportation process and transfer process required for surface treatment of bobbins such as package, etc. SOLUTION: In a yarn rewinder in which a pair of bobbin holders 11 are arranged in a rewinding position and a standby position respectively and mutual position exchange is carried out every time when the bobbin holder 11 in a rewinding position becomes full, a suction nozzle 21 for exfoliating a bunch winding part B is arranged on the external periphery side of the bunch winding part B of a cop body 1 mounted on the bobbin holder 11 in its standby position as well as enabling to switch the rotation of a motor 12 for driving the bobbin holder 11 in its standby position in normal/reverse direction.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a yarn winding device, and more particularly to a yarn winding device equipped with a surface treatment mechanism for a wound body such as a package, cheese, pan.

[0002]

2. Description of the Related Art Generally, a package wound on a bobbin in a yarn making process is subjected to a yarn tie process such as a yarn knot so that the yarn end of the surface layer is not unwound naturally, or an adhesive tape is used for adhesion. In addition, when switching from a bobbin that has been fully wound by winding the yarn to a new empty bobbin, the yarn that is continuously supplied during the yarn switching is bunch-wound on the full-winding package to be continuously wound. It enables the appropriate thread switching.

The full package thus obtained is
For example, the package 1 having a form as shown in FIG. 6 in which the yarn Y is wound around the bobbin 2 has a bunch winding portion B on the surface.
And the yarn end Ye in a floating state. However, since the bunch winding part B is an unnecessary warp yarn, the bunch winding part B is peeled off as shown in FIG. Yk must be formed. However, this exfoliation work is extremely complicated and requires a high degree of skill, which has been a cause of lowering productivity.

The applicant of the present invention has previously filed Japanese Patent Application Laid-Open No. 6-115816.
Japanese Patent Laid-Open Publication No. 9-242242 proposes an automatic surface treating machine capable of efficiently performing the yarn end treatment accompanied by the above-mentioned stripping work. By using such an automatic surface treatment machine, the work of exfoliating the bunch winding portion can be considerably rationalized and made more efficient. However, the work of transporting or transferring the full-roll package from the winder to the automatic surface treatment machine requires a considerable amount of work, and the package is not manually or mechanically operated during the transportation and transfer work. Contact may cause the package to become dirty or collapse, resulting in product defects. Further, the installation of the automatic surface treatment machine requires a new space on the production site, which has been a cause of affecting the productivity from another viewpoint.

[0005]

SUMMARY OF THE INVENTION An object of the present invention is to further improve productivity by reducing the carrying step and transfer step required for surface treatment of a wound body such as a package. It is to provide a yarn winding device.

[0006]

In the yarn winding device according to the present invention, a pair of bobbin holders are arranged at a winding position and a standby position, and the bobbin holders at the winding position are moved relative to each other each time the bobbin holder is fully wound. In a yarn winding device in which the thread is switched by switching, the motor for driving the bobbin holder at the standby position can be switched between normal and reverse rotation, and the wound body mounted on the bobbin holder at the standby position. The suction nozzle for exfoliating the bunch winding portion is arranged at a position corresponding to the outer peripheral side of the bunch winding portion.

More preferably, a guide bar is provided which traverses between the wound thread on the bobbin holder at the standby position and the suction nozzle and which draws a movement track around the outer circumference of the wound thread. It is what As described above, since the suction nozzle for exfoliating the bunch winding part of the winding body is provided as the surface treatment mechanism at the standby position of the yarn winding device having the winding position and the standby position, the surface treatment is performed from the winding machine. The steps of transporting and transferring the wound body to the machine can be omitted, and the productivity can be further improved. In addition, since the chances of human touching are reduced, product defects are reduced, and an extra space for installing a surface treatment machine can be eliminated.

Further, in the case where a surface treatment mechanism is provided with a guide bar that traverses between the wound body at the standby position and the suction nozzle and goes around the outer periphery of the wound body, the surface treatment for fixing the yarn end is performed. It is also possible to further improve productivity.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION The yarn winding device of the present invention will be specifically described below with reference to the embodiments shown in the drawings. FIG. 1 is a schematic side view of a yarn winding device according to an embodiment of the present invention, and FIG. 2 is a front view.

In these figures, a pair of bobbin holders 11, 11 are provided on the turret board 10 at upper and lower positions.
The motors 12 and 12 are supported horizontally at intervals of °.
It is designed to be driven individually. Further, between the bobbin holders 11 and 11, the thread regulating bars 20 and 20 are provided.
Are fixed in parallel. Two bobbin holders 11, 1
1 has an upper position as a winding position and a lower position as a standby position. The bobbin holder 11 at the winding position has two bobbins 2 and 2 mounted in series, and these bobbins 2 and 2 are respectively supplied from above. Cam box 13 for traversing yarns Y, Y
While traversing with a traverse guide (not shown), the winding layer is wound while being pressed against the roller bale 14.
Further, the traverse cam box 13 and the roller bale 14 move upward as the winding layer on the bobbin 2 grows.

When the bobbin 2 of the bobbin holder 11 at the winding position is fully wound, the turret board 10 rotates 180 °, the bobbin holder 11 at the winding position moves to the standby position, and the bobbin holder 11 at the standby position moves to the winding position. To change the position.
The turret board 10 is driven by a motor 17 via a belt or chain 16 wound around a pulley 15 at the center of the shaft. When the full-wound package 1 moves from the winding position to the standby position, the surface treatment described below is performed at the standby position, and after the surface treatment, the bobbin is replaced with an empty bobbin and stands by for the next winding.

Two packages 1, 1 are provided on the standby position side.
Suction nozzles 21 and 21 are provided as surface treatment mechanisms at positions outside the outer periphery corresponding to the bunch winding portions B and B, respectively. The suction nozzles 21 and 21 are attached to the suction pipe 22, and the suction pipe 22 is connected to a negative pressure source (not shown). Further, as a surface treatment mechanism, a guide bar 2
3, 23 are provided. This guide bar 23, 23
Is supported by a holding tube 24 parallel to the bobbin holder 11, and is reciprocally slid in the axial direction by a cylinder 25 in the holding tube 24. This guide bar 23, 23
Is configured to traverse between the suction nozzles 21 and 21 and the packages 1 and 1 at the standby position by the mechanism described below, and perform a movement to draw a circular locus C that makes one round outside the outer circumference of the packages 1 and 1. .

That is, the holding tube 24 for supporting the guide bars 23, 23 is fixed to the end portion of the rotating arm 26, the rotating arm 26 is supported on the upper end of the supporting culm 28 via the motor 27, and the supporting culm is further supported. 28 is swingably attached to a pedestal 30 via a motor 29. The support culm 28 is swingable between an upright position vertical to the gantry 30 and a fallen position indicated by a chain line by driving a motor 29 (see FIG. 2). The upper end of 28 is offset slightly below the axis of the bobbin holder 11 at the standby position, the motor 27 is fixed at the offset position, and the rotating arm 26 is rotated by the motor 27, whereby the guide bar 23 Is drawn around the full-wrapped package 1 as a slightly eccentric circular locus C.

The motor 12 that drives the bobbin holder 11 in the standby position is equipped with a controller 34 that sequences surface treatment operations. The controller 34 is connected to the inverter 32 via the changeover switch 31 that switches the rotation direction of the motor 12, and the inverter 32 rotates the bobbin holder 11 in the winding direction during normal winding.
When performing a surface treatment operation, the changeover switch 31 is changed over so that the rotation direction is reversed.

A pickup 33 for counting the number of rotations of the motor 12 for driving the bobbin holder 11 on the standby position side is provided at the shaft end. Further, the controller 32 is connected to a setting device 35 for setting the total reverse rotation speed of the bobbin holder 11. By comparing this set rotation speed with the reverse rotation speed of the bobbin holder 11 detected by the pickup 31, the peeling length from the full winding package 1 is managed.

A partition plate 36 is provided between the winding position and the standby position so as to be retractable. When the bobbin holder 11 that has been fully wound at the winding position is switched to the standby position for the surface treatment operation, the partition plate 36 advances as shown by the chain line in FIG. 2 and maintains that state during the surface treatment operation. Further, when the surface treatment operation of the full-wrapped package is completed, it is retracted again and stored in the storage box 37.

In the yarn winding device having the above-described structure, the surface treatment operation of peeling the bunch winding portion and fixing the yarn end is performed as follows. First, the bobbin holder 11 at the winding position
When the bobbin 2 is fully wound, the turret board 10 rotates as shown by the arrows in FIGS. 3 (A) and 3 (B), and the bobbin holders 11 and 11 at the upper winding position and the lower standby position are positioned. And the full roll package 1 moves to the standby position. Along with this position switching, the yarn Y that is being wound into the full-winding package 1 is complemented by the empty bobbin 2 of the bobbin holder 11 that has moved from the standby position to the winding position, and the yarn switching is performed. The supplied yarn Y is wound up as a bunch winding portion B on the fully wound package (see FIG. 6).

When the bobbin holders 11 and 11 are switched and the yarns are switched, the surface treatment of the full-winding package 1 moved to the standby position is performed by the steps of FIGS. 4 (A) to 4 (D). First, as shown in FIG. 4 (A), the partition plate 36 projects from the storage box 37 between the two bobbin holders 11 and 11, and the full package 1 on the standby position side is stopped by a brake. Next, the suction of the suction nozzle 21 is started, the changeover switch 31 is switched to the reverse rotation side, and the bobbin holder 11 of the full-winding package 1 starts rotating at a slight speed in the direction opposite to the winding direction. By this reverse rotation, the yarn end Ye of the fully wound package 1 is discharged and sucked into the suction nozzle 21.

The yarn end Ye is sucked into the suction nozzle 21,
A sensor (not shown) provided for the suction by the suction nozzle 21.
When it is detected by, the rotation speed of the full-winding package 1 in the reverse direction is increased, and the warp yarn of the bunch winding portion B is sucked by the nozzle 2
Exfoliate by 1. The exfoliation length of the bunch winding part B is shown in FIG.
This is a portion of the winding speed slightly increased during the switching operation of (A) and (B), and can be accurately determined from the winding conditions.

That is, the exfoliation length sucked by the suction nozzle 21 is set from the bunch winding amount determined by the winding diameter information of the full winding package when switching the bobbin holder and the speedup amount when switching. This bunch winding amount is input to the setter 35 as the stripping length, and the bobbin holder 1 counted by the pickup 33 when the bunch winding portion is stripped while the bobbin holder 11 is rotated in reverse at a rotation speed corresponding to this bunch winding amount.
It suffices to manage the time when the total number of rotations of 1 matches. When the set rotation speed of the setting device 35 and the total rotation speed counted by the pickup 33 match, the rotation of the bobbin holder 11 is stopped.

When the exfoliation of the bunch winding portion B is completed, FIG.
As shown in (B), the support culm 28 is erected vertically, and the rotating bar 26
Is rotated counterclockwise. By the counterclockwise rotation of the rotary bar 26, the guide bar 23 moves along the locus C, and at the same time, the full-winding package 1 also starts to rotate at a slow speed in the direction opposite to the winding direction. The guide bar 23 enters between the traveling yarn Y that is being sucked by the suction nozzle 21 and the full winding package 1 during the movement (FIG. 4 (B)), and further, FIG.
As shown in (C), the yarn Y is picked up from the surface of the fully wound package 1 while continuing to rotate, and finally when one round is scooped as shown in FIG. 4 (D) and FIG. The _two nozzles Y ₂ and Y ₂ extending over both sides of the bar 23 and the yarn Y ₁ which is being sucked into the suction nozzle 21 from the beginning are sucked by the suction nozzle 2
Put it in the suction port of 1.

With the yarns Y ₂ and Y ₂ facing each other in this way, the guide bar 23 is moved to the left side in FIG. 1 by the cylinder 25 in the holding tube 24 to guide the yarns Y ₂ and Y ₂ . When removed from the bar 23, the yarns Y ₂ , Y ₂ and the yarn Y ₁ are gathered into one bundle and sucked into the suction nozzle 21. Then, the jet flow is spirally jetted from the jet nozzle provided on the inner wall of the suction nozzle 21 to form the three yarns Y ₁ ,
When Y ₂ and Y ₂ are bundled and entangled, and the middle portion of the bundled and entangled portion is cut by a cutter, the yarn end fixing portion Y as shown in FIG. 7 is obtained.
k is formed, and the thread end fixing process is completed.

When the thread end fixing process is completed in this way,
The full package 1 is pulled out from the bobbin holder 11, and then the partition plate 36 is stored in the storage box 37. The partition plate 36 prevents the turbulent flow generated by the bobbin holder 11 at the winding position from disturbing the work during the above-described surface treatment work at the standby position, and stabilizes the surface treatment work.

In the above embodiment, the thread end fixing after the exfoliation of the bunch winding portion on the surface is focused and entangled by the spiral jet flow, but this thread end fixing is glued or glued as in a known technique. It may be fixed by an adhesive tape.

[0025]

As described above, according to the present invention, since the winding device is equipped with the surface treatment mechanism for the wound yarn provided with the suction nozzle and the like, the surface provided independently of the winding device as in the prior art. The steps of transporting and transferring the wound body to the processor can be omitted, and the productivity can be further improved. Further, it is possible to reduce the occurrence of product defects caused by the wound body touching the human hand during the transportation and transfer. Further, it is possible to eliminate the need for an extra space for installing the surface treatment machine.

[Brief description of drawings]

FIG. 1 is a schematic side view of a yarn winding device according to an embodiment of the present invention.

FIG. 2 is a front view of the yarn winding machine.

3 (A) and 3 (B) are explanatory views showing a yarn switching process at the time of full winding in the yarn winding device.

4 (A) to 4 (D) are explanatory views showing steps when performing a surface treatment in the yarn winding device.

FIG. 5 is a side view in the step of FIG. 4 (D).

FIG. 6 is a perspective view showing an example of a full-roll package used for surface treatment in the apparatus of the present invention.

FIG. 7 is a perspective view of a full winding package surface-treated by the apparatus of the present invention.

[Explanation of symbols]

 1 Package 2 Bobbin 10 Turret Board 11 Bobbin Holder 12, 17 Motor 21 Suction Nozzle 23 Guide Bar 24 Holding Tube 25 Cylinder 26 Rotating Arm 28 Support Crane 27, 29 Motor 36 Partition Plate 37 Storage Box

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Internal reference number FI Technical display location D01H 1/36 D01H 1/36 A

Claims (3)

[Claims] 1. A yarn winding device in which a pair of bobbin holders are arranged at a winding position and a standby position, and the bobbin holders at the winding position are switched to each other by switching positions each time when the bobbin holder is fully wound. In the device, the rotation of the motor for driving the bobbin holder at the standby position can be switched between forward and reverse,
A yarn winding device in which a suction nozzle for exfoliating the bunch winding portion is arranged at a position corresponding to the outer peripheral side of the bunch winding portion of the winding body mounted on the bobbin holder at the standby position. 2. A guide bar which traverses between the wound body on the bobbin holder at the standby position and the suction nozzle and which draws a movement trajectory that goes around the outside of the outer periphery of the wound body is provided. Yarn winding device. 3. The yarn winding device according to claim 1 or 2, further comprising a partition plate that is retractable between the winding position and the standby position.