JPH0891702A - Fly recovering device for automatic winder - Google Patents

Abstract

PURPOSE: To provide a fly recovering device for an automatic winder which can effectively recover the wind cotton generated in the contact part with a thread of a tenser and a waxing device and can carry out the thread passing in the thread relaying. CONSTITUTION: A fly recovering device is equipped with a suction nozzle 11 opened in an opposed form to the contact part with a thread of a tenser and a waxing device 3, and a shutter 14 which is installed on a suction pipe 12 passage which leads from the suction nozzle 11 to a main duct, and closes the suction pipe 12 passage in the thread relaying operation. The suction port of the suction nozzle 11 is opened slenderly along a thread passage for the thread which passes through the tenser and the waxing device 3. Further, the shutter may be constituted so that a communication port 16a for the communication in coincidence with the suction pipe 11 passage, in the waiting state of a kinky thread removing device 9 is formed on a shutter plate 16 which swings integrally with the swing levers 17 and 17 for operating the kinky thread removing device 9 and closes the suction pipe 11 passage, in crossing.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dust collecting device for an automatic winder.

[0002]

2. Description of the Related Art An automatic winder is a tenser for applying a predetermined thread tension to a yarn unwound from a yarn supplying bobbin, a waxing device for applying wax to the yarn, and a slab catcher for detecting a yarn defect. And the like, and is wound into a winding package, and a large number of winding units, which are provided in series, are arranged side by side in the machine longitudinal direction. Such an automatic winder is equipped with a cotton wool collecting device for collecting the cotton wool generated from the yarn near the unwinding position of the yarn, a tensor, a waxing device, or the like, and a portion contacting the yarn to prevent the dust from scattering. ing.

[0003] Conventionally, as a fly dust collecting device, a suction pipe branched from a main duct provided over the entire length of a machine stand of an automatic winder is used as a cylindrical cover for covering the above-mentioned fly dust generating portion of each winding unit. A device that collects the cotton fly by connecting it to the suction air flow from the cover to the main duct to the main duct, or opens the suction duct widely with a slight distance to the place where the cotton dust is generated, and covers a relatively wide range. It has been proposed that the cotton wool is recovered by a low-pressure and large-volume suction air flow.

However, in the former case, although the cotton wool is surely collected, the tensor, the waxing device and the like are covered with the cover, so that the inside cannot be directly seen and there is a problem that maintenance is difficult. In addition, when performing automatic yarn splicing, it is necessary to open and close the cover in order to pass the yarn through the portion. On the other hand, in the latter case, these problems are solved and it is suitable for collecting the fly waste generated near the unwinding position of the yarn, but conversely, the contact portion with the yarn such as a tensor or a waxing device. Occur locally at
It could not be said to be sufficient to collect the cotton wool accumulated in the part. Of course, in order to improve the collecting effect of the cotton fly, it is a good idea to increase the wind pressure, but if the wind pressure is strong, the yarn is sucked into the cotton wool collecting device at the time of yarn splicing when the yarn tension becomes small. was there.

[0005]

SUMMARY OF THE INVENTION In view of these points of the conventional fly cotton collecting apparatus, the present invention aims to effectively collect the cotton fly generated at the contact portion with the yarn such as the tensor and the waxing device. An object of the present invention is to provide a dust collecting device for an automatic winder, which is capable of threading during splicing without hindrance.

[0006]

[Means for Solving the Problems] A suction nozzle, which is opened facing a contact portion with a yarn, such as a tensor or a waxing device, and a suction conduit extending from the suction nozzle to a main duct, are provided at the time of a yarn splicing operation. And a shutter for closing the suction line. The suction port of the suction nozzle is elongated and opened along the yarn path of the yarn passing through the tensor and the waxing device. Also, the shutter swings integrally with the swing lever that operates the anti-rapping device, and the shutter plate that closes across the suction pipe line is aligned with the suction pipe line in the standby state of the anti-billing device. Then, a communication port may be provided for communicating it.

[0007]

The cotton wool generated in the portion that comes into contact with the traveling yarn, such as a tensor, a waxing device, or a yarn guide that guides the yarn to the tensor and the waxing device, is sucked by the suction nozzle at the same time as it is generated, and the suction line is passed from the suction nozzle. It is recovered by the sucked air flow which goes through to the main duct. Then, at the time of yarn splicing, before passing the yarn through the tensor or the waxing device, the suction pipe line of the unit is closed by a shutter,
By stopping the suction and then threading the yarn, the yarn in the yarn joining process is prevented from being sucked into the suction nozzle.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An example of the embodiment will be described with reference to the drawings.

FIG. 1 shows one winding unit W of an automatic winder equipped with a fly dust collecting apparatus 1 according to an embodiment of the present invention. In the drawing, the winding unit W includes a tenser 2, a waxing device 3, and a slab catcher 4 for a yarn Y that is unwound from a yarn supplying bobbin B that is positioned at a predetermined position in a state of being inserted in a tray T. After that, while being traversed by the winding drum 5, the winding package P is wound in pressure contact with the winding drum 5 to rotate. Further, a yarn joining device 6 is provided between the slab catcher 4 and the winding drum 5 slightly rearward of the yarn path, and 7 sucks and grasps the yarn feeding side yarn end YB to the yarn joining device 6. A relay nozzle 8 for guiding the winding side yarn end YP wound into the winding package P.
The suction mouth 9, 9 is a stapler removing device that contacts the yarn supplying bobbin B when the yarn is spliced and presses the yarn YB on the yarn supplying side to prevent the occurrence of chattering. These respective members are provided in series on the side surface of the frame 10 of the winding unit W, and a large number of the winding units W are arranged side by side in the machine longitudinal direction of the automatic winder.

The fly collecting device 1 is opposed to the tensor 2 and the waxing device 3 of the winding unit W and has a suction port 11a.
It is composed of a suction nozzle 11 having an opening, a suction pipe 12 extending from the suction nozzle 11 to a main duct 13, and a shutter 14 provided in the middle of the suction pipe 12, and the main duct 13 extends over the entire length of the machine frame of the automatic winder. Provided across
One end of the main duct 1 is connected to a blower (not shown) through a duct box and a filter.
The inside of 3 is always decompressed.

As shown in detail in FIG. 3, the suction nozzle 11 is fixed to the front surface of the case 20 of the tensor 2 and the waxing device 3 which are common units, and their fixed side, that is, the fixed side of the tensor 2. A suction port 11a is opened at a tip portion of the disk 22 and a support pin 32 of the waxing device 3 which is obliquely bent toward the yarn path from the right front side in the figure. It has a slit-like shape that is elongated along the yarn path. This is for effectively sucking and collecting a cotton fly generated along the yarn path over a wide range while suppressing the opening cross-sectional area of the suction port 11a to be small and increasing the suction pressure.

The shutter 14 is fixed to the case 20 at the upper end thereof, and a flat plate-shaped bracket 14b to which the suction pipe 12b on the main duct 13 side is connected, and the bracket 1.
4b includes a flat plate-shaped bracket 14a, which is supported and fixed in parallel with the stepped screw 15 at a slight distance from each other and is parallel to the suction nozzle 12, and a shutter plate 16 interposed therebetween.

The shutter plate 16 includes a support shaft 17a.
The swing lever 17 is swingably supported with the fulcrum as a fulcrum.
Is integrally provided on the distal end side of the suction pipe 12 and is curved in an arc shape centered on the support shaft 17a.
A communication port 16a having the same diameter as a and 12b is provided. The swing lever 17 is connected to the upper end of the swing arm 9a of the anti-rapping device 9 at a bent portion connected to the shutter plate 16, and also serves as a member for operating the anti-raising device 9.
The upper end is engaged with a pin 18a protruding from the slide bar 18.

Next, the operation will be described based on an embodiment.

At the time of winding, the rocking lever 17 is positioned at 17 'indicated by a chain double-dashed line in FIGS. 2 and 3, and in this state, the communication port 16a of the shutter plate 16 has the bracket 1
4a and 14b are connected to the suction pipes 12a and 12b and communicate with each other, thereby generating a suction air flow from the suction port 11a of the suction nozzle 11 to the main duct 13 via the suction pipes 12a and 12b. By the suctioned air flow, the cotton wool generated when the yarn comes into contact with the tensor 2, the waxing device 3, and the yarn guides 33, 34 provided above and below the tensor 2, the waxing device 3, and the yarn guides 33, 34 are sucked and collected at the same time.

When the yarn supplying bobbin B is replaced, the winding package P is doffed, or the yarn is broken, the yarn is spliced.
The relay pipe 7 pivots downward as shown by 7'in FIG. 1 to suck and grip the yarn end YB on the yarn supplying bobbin B side.

At the same time, the slide bar 1 shown in FIG.
8 slides to the left in the figure by the rotation of an operating cam (not shown) that controls the yarn splicing operation, and the movable side disk 21 of the tensor 2 is supported by the wax 31 of the waxing device 3 from the fixed side disk 22. The pins are opened apart from the pins 32, and the pins 18a of the slide bar 18 are opened.
The swing lever 17 connected to is swung counterclockwise in the figure. Along with this, the swing arm 9a of the staple removing device 9
Is pivoted and oscillated in the clockwise direction in the figure by the urging force of a spring (not shown), and its tip comes into contact with the yarn feeding bobbin B. It is located between the connected suction tubes 12a and 12b and shuts them off.
The suction of the suction nozzle 11 is stopped.

Subsequently, in the process in which the relay pipe 7 pivots upward, pulls out the yarn end YB on the yarn supplying side that has been sucked and grasped, and guides it to the front surface of the yarn joining device 6, the yarn YB guides the yarn YB.
33, 34, 35, and the suction port 11 of the suction nozzle 11.
aTensor 2, waxing device 3 guided by the outer surface
Passed through. At this time, since the suction of the suction nozzle 11 is stopped, the yarn YB is not sucked into the suction nozzle 11.

In the yarn splicing device 6, the yarn splicing device 6 is connected to the yarn feeding side yarn end YB and the suction mouth 8.
The yarn end YP on the winding side, which is guided to, is spliced. After that, the slide bar 18, the swing lever 17, the shutter plate 16, and the swing arm 9a of the chattering removal device 9 return to their original positions, and the suction nozzle 11 restarts suction, and the tenser 2 and the waxing device 3 is closed and winding is restarted.

[0020]

EFFECT OF THE INVENTION The fly wind collecting device of the automatic winder of the present invention is
Since it is configured as described above, the following effects can be obtained.

The suction nozzle, which is opened to face the contact portion with the yarn, such as a tensor or a waxing device, and the suction conduit extending from the suction nozzle to the main duct, are closed during the yarn splicing operation. Since it is equipped with a shutter, it is possible not only to efficiently collect the cotton wool generated when the traveling yarn comes into contact with each of the above-mentioned members at the same time as it is generated, but also the suction nozzle faces the cotton wool generation location. The device is compact if it is provided locally. In addition, the yarn is always exposed to the suction airflow at the cotton wool collection location, but since the suction can be temporarily stopped by the shutter during yarn joining, the yarn is not sucked into the suction nozzle, and the yarn joining operation is performed. Can be reliably performed.

Since the suction port of the suction nozzle is opened slenderly along the yarn path of the yarn passing through the tensor and the waxing device, a sufficient suction pressure can be obtained while ensuring a wide working range of the suction nozzle. .

A shutter plate, which swings integrally with a swing lever for operating the anti-rapping device, closes the shutter plate across the suction conduit, and is in contact with the suction conduit in the standby state of the anti-rapping device. Since the communication port is provided to communicate with each other, the structure of the device is simplified and the operation timing of the shutter can be reliably and easily obtained.

[Brief description of drawings]

FIG. 1 is a perspective view showing an automatic winder equipped with a fly dust collecting apparatus according to an embodiment of the present invention.

FIG. 2 is a partially cutaway perspective view showing a fly dust collecting apparatus according to an embodiment of the present invention.

FIG. 3 is a front view of a main part of a fly dust collecting apparatus according to an embodiment of the present invention.

FIG. 4 is a timing chart showing the operation of each member during yarn joining.

[Explanation of symbols]

 1 Fly Cotton Collecting Device 2 Tensor 3 Waxing Device 6 Yarn Splicing Device 7, 7'Relay Pipe 9 Peeling Device 11 Suction Nozzle 11a Suction Port 12 Suction Pipe 13 Main Duct 14 Shutter 16 Shutter Plate 16a Communication Port 17, 17 'Swing Lever B Thread feed bobbin Y Thread YB Thread feed side Thread end

Claims (3)

[Claims] 1. A suction nozzle, such as a tensor or a waxing device, which is opened so as to face a contact portion with a yarn, and a suction conduit extending from the suction nozzle to a main duct. A device for collecting cotton dust for an automatic winder, which is provided with a shutter for closing. 2. The cotton wool collecting device for an automatic winder according to claim 1, wherein the suction port of the suction nozzle is elongated along the yarn path of the yarn passing through the tensor and the waxing device. 3. A shutter plate, in which a shutter swings integrally with a swing lever for operating a debris removing device and closes across the suction pipe, and the suction pipe is provided in a standby state of the debris removing device. The device for collecting cotton dust for an automatic winder according to claim 1, wherein a communication port is provided in correspondence with the communication port.