JP2001031328A - Filament package, filament end fixing method and device, and filament winder - Google Patents

Abstract

PROBLEM TO BE SOLVED: To positively fix a filament end at a low cost by fitting a filament end fixing member for holding down a bunch winding part, to a filament package with the bunch winding part to fix the filament end. SOLUTION: When a bobbin 17 mounted to a bobbin holder 15 is wound with filament by a specified quantity by the winding drive of a contact roller 20, a turret table 13 is rotated to perform package changing work. Upon the completion of changing, a cover 22 is swung around a fulcrum 22a by a cylinder and inserted between the bobbin holders 14, 15. When the bobbin holder 15 is stopped by a braking device, a rod 27a of the cylinder 27 is pulled in, and an arm 24 swings around a fulcrum 24a to bring a feed port 25b into contact with a bunch winding part of a filament package 18. In this state, a U-shaped fastener 4 is driven into the bunch winding part of the filament package 18 from the feed port 25b to fasten a filament end.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a yarn package, a method and an apparatus for fixing the yarn end thereof, and a yarn winding machine provided with the same. More particularly, the present invention relates to a yarn package having a bunch winding. The present invention relates to a method and an apparatus for securely fixing.

[0002]

2. Description of the Related Art As a technique for fixing a yarn end of a yarn package in which a yarn is wound around a bobbin, for example, a technique of fixing a yarn end by interlacing the yarn by bringing a fluid nozzle close to the package surface ( Japanese Patent Application Laid-Open No. 63-57477) and a technique for binding yarns on the surface of a package (Japanese Patent Application Laid-Open No.
176271) and the like.

[0003]

However, in the prior art described above, in the former case, since the yarn is entangled by the fluid, its fastening force is weak, and the entangled portion comes off during the transportation of the package, and the package is conveyed. There was a possibility that the yarn end was routed on the path. Further, in the latter case, there is a problem that a device for gripping the yarn and a tying device are required to tie the yarn, so that the device is complicated, and the equipment becomes complicated or expensive.

Accordingly, the present invention provides a low-cost and reliable yarn end fixing device and a yarn winding machine by securely fixing the yarn end to a package outer layer using a simple means in a package having a bunch winding. The purpose is to provide.

[0005]

In order to solve the above-mentioned problems, a yarn package according to the present invention is a yarn package having a bunch winding, wherein a yarn end fixing member for holding down the bunch winding is attached to the package. The yarn end is fixed. This results in a yarn package in which the yarn ends are firmly fixed to the outer layer of the package. In this specification, the term "fastener" may be any member as long as it can hold down a bunch winding, and is preferably a needle-like one that is driven into a bunch winding portion of a yarn package. Another fixing member that is fixed but can be peeled off with a predetermined peeling force may be used.

Further, the method for fixing the yarn end of the yarn package according to the present invention comprises the steps of:
A fastener for pressing the bunch winding is driven into the package to fix the yarn end. This makes it possible to obtain a yarn package in which a bunch winding is used and a yarn end of the package is firmly fixed to an outer layer of the package in a package having a bunch winding with a simple and low facility cost.

[0007] A yarn end fixing device for a yarn package according to the present invention is a yarn package having a bunch winding.
A fastener for holding down the bunch winding, a fastener driving means for driving the fastener into the package surface, and the fastener driving means approaching the bunch winding so that the fastener driving means can drive the fastener into the package surface; or Moving means for retreating from the bunch winding. Thereby, the yarn end fixing device approaches or comes into contact with the package wound on the bobbin holder,
By driving in the fastener and retracting from the package, the yarn end can be fixed to the wound package.

Further, a yarn winding machine according to the present invention includes a yarn end fixing device for the yarn package, and a bobbin holder capable of holding and rotating the yarn package near the yarn end fixing device. It is characterized by having. Thereby, the distance between the yarn package to which the yarn end is fixed and the yarn end fixing device can be shortened, and the work time for fixing the yarn end of the yarn package can be shortened. Also,
It is possible to prevent the equipment from becoming large and complicated.

Further, as described in claim 5, when the stop of the bobbin holder is confirmed and the fastener driving means and the moving means are operated, the secure thread end fixing in conjunction with the automatic winding of the package is achieved. it can.

Further, by providing a cutting means for cutting the yarn end near the tip of the bobbin holder of the winding machine, the yarn end can be moved from the position of the fastener driven into the package. If it hangs long, it can be cut short below a certain length.

[0011]

Preferred embodiments of the present invention will be described below with reference to the drawings.

First, a method for fixing a yarn end according to the present embodiment will be described with reference to FIGS.

FIG. 1 is a perspective view of a yarn package to which the yarn end fixing method of the present invention has been applied. FIG. 2 is a front view of a fastener for fixing a bunch winding, and FIG.
2 (a), 2 (b) and 2 (c) show different embodiments of the fastener, respectively.

First, the yarn package will be described.

In FIG. 1, reference numeral 1 denotes a bobbin for winding a yarn, 2 denotes a yarn package in which the yarn is wound on a bobbin 1, and a fastener 4 is driven into the yarn package 2. Reference numeral 3 denotes a bunch wound around the outer peripheral end surface of the yarn package 2, 4 denotes a fastener (yarn end fixing member) for holding the bunch winding 3, and 5 denotes a yarn end of the yarn package 2. As shown in FIG. 2, the fastener 4 has a pointed driving portion 4a which is driven into the yarn package.
And a holding portion 4b for holding the bunch winding. Since the fastener 4 has the holding portion 4b (see FIG. 2)
), Fastener 4 driven into yarn package 2
Holds down the bunch winding 3. Therefore, the yarn end 5 is also fixed as shown in the figure.

The fastener 4 is shown in FIGS.
As shown in (c), the fastener may be lightly driven into the yarn package to have a rattle preventing portion 4c for preventing rattle of the driven fastener. A handle for facilitating the work of extracting from the package may be attached. Of course, the shape is not limited to the illustrated one, and a commercially available stapler fastener can be used. Further, the fastener 4 may be formed of plastic or metal.

Next, a yarn package fixing device and a yarn winding machine according to an embodiment of the present invention will be described with reference to FIGS.

FIGS. 3 to 5 are front views of a turret type automatic switching winder equipped with the yarn end fixing device according to the present embodiment, and FIG. 6 is a view of the present embodiment viewed in the direction of arrow A in FIG. FIG. 2 is a side view of a turret type automatic switching winder equipped with the yarn end fixing device according to the first embodiment. FIG. 7 is a front view of a main part of a turret type automatic switching winder equipped with the yarn end fixing device according to the present embodiment. FIG. 8 is a perspective view of a main part of a turret type automatic switching winder equipped with the yarn end fixing device according to the present embodiment, and FIG. 9 is a cross-sectional view of a fastener feeding device according to the present embodiment.

First, the configuration will be described.

In FIG. 3, reference numeral 11 denotes a yarn winding machine main body supported by a base 12, reference numeral 13 denotes a turret table which is rotatably supported by the winding machine main body 11, and is rotated by a motor (not shown). 15 is the turret table 1
Bobbin holders 3 each rotatably supported, 1
Reference numerals 6 and 17 denote bobbins mounted on the bobbin holders 14 and 15 respectively (two end windings), 18 a thread package wound on the bobbin 17 mounted on the bobbin holder 15, and 19 a slide not shown. A frame 20 projecting from the block, 20 is a contact roller for winding driving which is rotatably supported by the frame 19 and abuts on the bobbin holder 14 with a predetermined contact pressure, 21 is a contact roller 2
This is a traverse device protruding from a slide block (not shown) supported by the winder main body 11 so as to be parallel to 0.

Reference numeral 22 denotes a cover for preventing entanglement.
When the turret table 13 is rotated, the thread package 18 is swingably supported by a bearing 22a supported by a bracket 23 so as to be able to retreat to a retreat position where the thread package 18 does not contact. Reference numeral 24 denotes an arm attached to the bobbin holder so as to hang from a fulcrum 24a provided on the cover 22. The arm 24b is a lever integrally attached to the arm 24, and 28 is a bracket attached to the cover 22. is there.

Reference numeral 25 denotes a roll 2 wound around a bobbin holder.
Feed devices are provided on the arms 24 corresponding to the bunch winding forming positions of the individual yarn packages 18 (see FIG. 6). These feed devices 25 are provided with a feed portion 25a for feeding the fastener 4, a feed port 25b for driving the fastener 4, and a cylinder 26 for driving the fastener 4 from the feed port 25b and pushing the fastener 4 into the yarn package. Reference numeral 27 denotes an air cylinder, one end of which is attached to the lever 24b via a rod 27a, a joint 30, and a pin 31, and the other end is attached to a bracket 28 via a pin 29.

Reference numeral 38 denotes a nichrome wire heater which is a cutting means for cutting a yarn end disposed in front of the winding machine, and 38a.
Is a mounting bracket for the nichrome wire heater 38.

Next, the operation of the fastener will be described focusing on the step of driving the fastener into the yarn package.

The bobbin 17 mounted on the bobbin holder 15
On the other hand, when the yarn is wound up by a predetermined amount by the winding drive by the contact roller 20, the turret table 13 is rotated, and a package switching operation is performed. At this time,
As shown in FIG. 3, the cover 22 and the feed device 25 are respectively located at the standby positions so as not to hinder the switching operation.

When the above switching is completed, the cover 22 is swung about a fulcrum 22a by a cylinder (not shown) and inserted between the bobbin holder 14 and the bobbin holder 15, as shown in FIG. At this time, the feed device 25 is still in the standby position.

When the bobbin holder 15 is stopped by a braking device (not shown), the stop of the bobbin holder is confirmed by a known means. By the stop confirmation command, the rod 27a is pulled into the cylinder 27,
The arm 24 swings around the fulcrum 24a to the position shown in FIG.
The feed opening 25b contacts the bunch-wound portion of the yarn package 18, and the fastener 4 is driven into the bunch-wound portion of the yarn package 18 from the feed opening 25b.

When the fastener 4 is driven into the bunch-wound portion of the thread package 18, the rod 27a is pushed out of the cylinder 27, and the feed device 25 returns to the holding position shown in FIG.

Then, as shown in FIG.
The yarn package 18 is extruded from one side by an extruder (not shown), and is removed from the bobbin holder 15. Here, when the yarn package 18 passes over the nichrome wire heater 38 disposed in front of the winding machine,
When the yarn end is long hanging down from the position of the fastener 4 driven into the yarn package 18 and the yarn end contacts the nichrome wire heater 38, the yarn end is cut by the heat of the nichrome wire heater 38.

Finally, when the yarn package 18 is removed, the cover 22 returns to the retaining position shown in FIG.
A new bobbin is inserted into the bobbin holder 15.

Next, the movement of the arm 24 and the like will be described in detail with reference to FIGS.

In FIG. 7, one end of the cylinder 27 is connected to the rod 27a, the joint 30, and the pin 31 as described above.
And the other end is fixed to the cover 22 via a pin 29 at the other end.
Attached to. Therefore, when the compressed air is supplied to the cylinder 27 and the rod 27a is retracted into the cylinder 27, the arm 24 swings about the fulcrum 24a, so that the feed device 25 attached to the arm 24 also swings, and the feed port 25b Contacts the bunch-wound portion of the yarn package 18. Then, the fastener 4 is driven into the bunch-wound portion of the yarn package 18 from the feed port 25b. When the compressed air is supplied to the cylinder 27 and the rod 27a is pushed out of the cylinder 27, the arm 24 returns to the standby position. In the present embodiment, the distance between the fulcrum 24a and the pin 31 is
Because it is much shorter than the distance between a and the feed port 25b,
Even if the expansion and contraction of the rod 27a is relatively small, the feed port 25b can be largely changed with respect to the yarn package 18.

In this embodiment, as described above, two bobbins are mounted on the bobbin holder (two-end winding).
Then, a yarn package and a bunch winding are formed respectively. Therefore, as shown in FIG.
Numerals 5 are mounted on the arm 24 at a position in contact with the bunch winding portion of each thread package, for a total of two locations.

Next, the fastener feed section will be described in detail with reference to FIG.

In FIG. 9, reference numeral 25c denotes a feed portion 25a.
The slit 32 is formed with a weight for pressing down the fastener 4 attached to the feed portion 25a,
2a is a handle provided on the weight 32. To explain the cylinder 26, 37 is the main body, 34 is the main body 37
A piston 33 for pushing out the fastener 4 fixed to the tip of the piston 34;
35 and 36 are O-rings, and 37a and 37b are ports to which compressed air is supplied.

The feeder 25a has a plurality of fasteners 4
Are attached, and a weight 32 of a predetermined weight is added to press down the fastener 4 inserted in the feed portion 25a. Further, since the feed portion 25a is formed with the slit 25c and the handle 32a provided on the weight 32 projects, the weight 32 can be lifted by using the handle 32a, and the fastener 4 can be supplied to the feed portion 25a.

Although a weight is used to press the fastener 4 in this embodiment, other pressing means such as a spring or a cylinder may be used.

A cylinder 26 is fixed to the feed portion 25a as shown in the figure, and a piston 34 is engaged inside the main body 37. When compressed air is supplied to 37b, the piston 3
4 moves to the position of FIG. At this time, since the plate 33 for pushing out the fastener 4 is fixed to the tip of the piston 34, the fastener is driven into the yarn package from the feed port 25b by the operation of the piston 34. When the compressed air is supplied to 37a, the piston 34 and the plate 33 move to the position shown in FIG. 9A again. Then, the new fastener 4 is again supplied to the feed port 25b by the weight 32.

In the present embodiment, the feed device 25 is attached to the cover 22 for preventing entanglement. However, the feed device 25 may be attached to an arm separately provided on the base 12 or the machine frame 11 so as to be retractable with respect to the yarn package. Further, in the present embodiment, the feed device 25 is mounted on the right side of the winder in FIG. 3, but may be mounted on the left side.
Further, in the present embodiment, the swing of the arm 22 and the driving of the fastener 4 are performed by the two cylinders 27 and 26, but the swing of the arm 22 and the driving of the fastener 4 are performed by using one cylinder. You can also.

Further, in the present embodiment, the fastener 4 is driven at one place in one thread package. However, the thread package may be rotated and driven at a plurality of places, or the feed device may be driven at a plurality of places. 25 may be provided and driven at a plurality of locations.

In this embodiment, the turret type automatic switching winder has been described.
The present invention is also applicable to a yarn winding machine having a bobbin holder.

[0042]

According to the present invention, in a yarn package having a bunch winding, the yarn end can be securely fixed to the outer layer of the yarn package, and a yarn suction device and a binding machine are not required. It is possible to provide a low-cost winding facility with a simple device configuration.

Further, since the bunch is fixed by driving the fastener into the yarn package, the yarn end of the yarn package is firmly fixed, and there is an effect that the yarn end does not come off in the conveying process.

[Brief description of the drawings]

FIG. 1 is a perspective view of a yarn package subjected to a yarn end fixing method according to an embodiment of the present invention.

FIG. 2 is a front view of a fastener for fixing a bunch winding in one embodiment.

FIG. 3 is a front view of a turret type automatic switching winder equipped with the yarn end fixing device according to one embodiment.

FIG. 4 is a front view of a turret type automatic switching winder equipped with the yarn end fixing device according to one embodiment.

FIG. 5 is a front view of a turret type automatic switching winder equipped with the yarn end fixing device according to one embodiment.

6 is a side view of the turret type automatic switching winder equipped with the yarn end fixing device according to the present embodiment, as viewed in the direction of arrow A in FIG. 3.

FIG. 7 is a front view of a main part of a turret type automatic switching winder equipped with the yarn end fixing device according to one embodiment.

FIG. 8 is a perspective view of a main part of a turret type automatic switching winder equipped with the yarn end fixing device according to one embodiment.

FIG. 9 is a cross-sectional view of a fastener feed unit according to one embodiment.

[Explanation of symbols]

 2 yarn package 3 bunch winding 4 fastener (yarn end fixing member) 5 yarn end 14, 15 bobbin holder 18 yarn package 25 feed device 38 nichrome wire heater

Claims (6)

[Claims] 1. A yarn package having a bunch winding, wherein a yarn end fixing member for holding down the bunch winding is attached to the package, and the yarn end is fixed. 2. A method for fixing a yarn end of a yarn package, comprising: when forming a bunch winding on an outer layer of the yarn package, driving a fastener for pressing the bunch winding into the package to fix the yarn end. 3. A fastener for pressing the bunch winding of a yarn package having a bunch winding, and a fastener driving means for driving the fastener into a package surface.
Moving means for moving the fastener driving means close to or retracting from the bunch winding so that the fastener driving means can drive the fastener into the package surface. Thread end fixing device. 4. A yarn end fixing device for a yarn package according to claim 3, and a bobbin holder capable of holding and rotating the yarn package near the yarn end fixing device. Yarn winding machine. 5. The yarn end fixing device for a yarn package according to claim 3, wherein the fastener driving means and the moving means are operated when the stop of the bobbin holder is confirmed. 6. The yarn winding machine according to claim 4, wherein a cutting means for cutting a yarn end is provided near a tip of the bobbin holder.