JPH0441724A - Apparatus for cleaning in spinning frame and method for cleaning - Google Patents

Abstract

PURPOSE:To obtain the subject apparatus without requiring periodic operation to remove fiber wastes by producing suction air streams with rotating impellers in a duct having suction openings, providing suction nets in the openings and blowing compressed air on places between mounting parts of the rotating impellers. CONSTITUTION:Many rotating impellers 18 are arranged over the whole length of a duct 4 therein to produce suction air streams. Fly wastes, etc., are sucked from suction openings 5 and attracted on suction nets 9. Blowing ports (21a) of compressed air feed pipes 21 are directed to places between the mounting parts the rotating impellers to prevent fiber wastes, etc., passing through the suction nets from depositing on bearings, couplings, etc.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a cleaning device and a cleaning method for a spinning machine.

"Prior Art" Generally, in spinning machines such as roving frames and spinning machines, fluff is generated in the roller part of the draft device, and if this fluff is left unattended, it will flow onto each member that makes up the draft section. etc., and the accumulated fly fluff forms clumps and is brought into the yarn being spun, degrading the quality of the spun yarn.Therefore,
A cleaning device is required to collect fluff, etc. Conventionally, this type of cleaning device includes a duct provided with an intake opening, in which a large number of rotary impellers that generate suction airflow from the opening are disposed along the entire length of the duct, and a suction net is provided to cover the opening. At the same time, it has been proposed that a collection device is installed to remove fluff, etc. adsorbed onto the suction net (Japanese Unexamined Patent Application Publication No. 63-28923, Japanese Unexamined Patent Publication No. 63-1989).
282322, etc.), and has also been implemented. The rotary impeller is formed by fixing a large number of curved plates between a pair of discs fixed to a rotating shaft, and may have a configuration in which the rotating shaft is directly connected to the output shaft of a drive motor, or a structure in which the rotating shaft is connected to a duct. There is a configuration in which a line shaft extending in the longitudinal direction is used, and a bearing that supports the rotating shaft, a coupling that connects the rotating shaft, etc. are arranged between the rotating impellers.

[Problems to be Solved by the Invention] In the conventional device described above, fluff, etc. that are directed toward the suction opening are adsorbed by the suction net by the action of the suction airflow.
Fine fiber waste passes through the suction net and enters the duct. The action of the suction airflow is weak in areas where bearings that support the rotating shaft and couplings that connect the rotating shaft are located, so the airflow stagnates in these areas, causing fine fibers and other debris that have entered the duct. deposits on bearings and couplings. If this is left unattended, there is a risk that it may get caught in the bearing, or that a large amount of accumulated fiber waste may fall from the accumulation area due to machine vibrations, etc., and be discharged from the duct by air currents again. be. Many ring spinning machines are equipped with a conveying device on both sides of the bottom of the machine to convey the doffed full bobbin, and when the full bobbin is on the conveying device, the fiber waste is removed as described above. When the lump is discharged from the duct, there is a problem that the fiber waste adheres to the full bobbin and causes trouble in the subsequent process. In order to prevent these problems from occurring, it is necessary for a worker to periodically remove fiber waste.

The present invention has been made in view of the above problems, and includes:
The purpose of this is to reliably prevent the inconvenience caused by a large amount of fiber waste passing through the adsorption net accumulating on bearings, couplings, etc., without requiring regular removal work of fiber waste by operators. An object of the present invention is to provide a cleaning device and a cleaning method for a spinning machine.

[Means for Solving the Problems] In order to achieve the above object, the invention according to the first claim provides a rotary impeller that generates a suction airflow from the opening in a duct provided with an intake opening. are arranged along the entire length of the duct, a suction net is provided to cover the opening, and a compressed air supply pipe is provided with an injection port directed between at least the mounting portions of the rotary impeller.

Further, in the invention set forth in claim 2, in a spinning machine in which a bobbin conveying device for carrying out a doffed full bobbin is disposed below the spindle rail along the longitudinal direction of the spinning machine stand, In a duct with an opening, a large number of rotary impellers are arranged along the entire length of the duct to generate a suction airflow that acts toward the opening, thereby dislodging fluff, etc. onto the suction net that covers the opening. After adsorption,
Collecting the absorbed fluff, etc., and injecting compressed air from a compressed air supply pipe equipped with an injection port directed between at least the mounting portions of the rotary impeller when there are no full bobbins on the bobbin conveying device. I made it.

[Operation] In the device of the present invention, when the rotary impeller disposed in the duct is driven to rotate, a suction airflow is generated from the outside of the duct toward the intake opening of the duct.

Due to this suction air flow, fluff generated in the roller part and spindle part, fleece continuously supplied from the front roller when yarn breaks, floating fluff in the air, etc. are adsorbed onto the suction net covering the suction opening. Fine fiber waste and the like pass through the suction net and enter the duct, and a portion of it is deposited on the bearing and coupling of the rotating shaft of the rotary impeller. Fiber debris and the like accumulated on the bearings and couplings of the rotating shaft are removed by the air flow intermittently injected from the compressed air supply piping and discharged out of the duct.

Therefore, a large amount of fiber waste etc. does not accumulate on the bearing or coupling of the rotating shaft.

Further, in the cleaning method according to the second claim, since compressed air is injected from the compressed air supply pipe when there are no full bobbins on the bobbin conveying device, the lump of fiber waste is removed from the duct by the injection of compressed air. Even when the fiber is discharged, the fiber waste does not adhere to the full bobbin.

[Example 1] A first example embodying the present invention will be described below with reference to FIGS. 1 to 3. As shown in Fig. 2, a duct 4 is provided at the center of the rear lower frame of the drafting device 3, which is placed on the trafting rods 2 arranged on both the left and right sides of the spinning frame frame l, and extends over the entire longitudinal length of the frame. It is arranged. Duct 4
Intake openings 5 for forming suction airflow F1 in the lower part of the roller part R and the spindle part S are formed on both left and right sides thereof over the entire length in the longitudinal direction of the machine. As shown in FIG. 3, rotating shafts 7 slightly longer than the height of the duct 4 are vertically disposed at two locations on both ends of the spinning frame head 6 of the spinning machine frame 1 (only one side is shown). Pulleys 8 with pins are fitted and fixed to both upper and lower ends of 7 so as to be rotatable together. The intake opening 5 is provided between each pulley 8 with a pin.
An endless suction net 9 is wrapped around the machine base so as to cover it and extend along the longitudinal direction of the machine base. And the rotating shaft 7
The net moving motor 11 is driven via a belt 13 wrapped around a driven pulley lO fixed to one and a driving pulley 12 fitted and fixed to the output shaft of the net moving motor 11. Accordingly, the suction net 9 is driven.

Two line shafts I4 extending along the longitudinal direction of the machine are rotatably disposed within the duct 4, and are driven by a drive motor M disposed at the end of the machine via a belt transmission mechanism 15. It has become.

As shown in FIG. 1, the line shaft 14 is divided into a plurality of parts, connected through a coupling 16, and rotatably supported by a bearing 17. A large number of rotary impellers 18 are attached to the line shaft 14 to generate an intake airflow Fl from the intake opening 5. Each rotary impeller 18 is fitted to the line shaft 14 so as to be integrally rotatable with a pair of mounting discs 19 having their centers penetrated by the line shaft 14, and a number of curved plates 20 are arranged between the mounting discs 19. It is formed by being fixed.

Inside the duct 4, there is a blowing air flow F caused by the rotation of the rotary impeller 18.
In order to blow out 2 toward the bottom of the machine, a guide plate 4a is arranged so that the outlet 4b is on the lower side. Compressed air supply piping 21 is connected to each line shaft 1 on the outside upper part of the duct 4.
4, and the compressed air supply pipe 21 is connected to a compressed air supply source (not shown). As shown in FIG. 1, each compressed air supply pipe 21 is connected to the coupling 16, the bearing 17, or the end of the rotary impeller 18, which is disposed between the attachment parts of the rotary impeller 18, and is connected to the duct 4. A large number of injection ports 21a facing the outlet 4b are provided.

On the machine head 6, which is the circumferential end of the suction net 9, there is a collection device 22 for removing fly fluff and the like adsorbed onto the suction net 9 from the suction net 9 and collecting it by the action of suction airflow.
is arranged, and a suction mouth 23 is arranged close to the suction net 9. In addition, as shown in FIG. 2, on both the left and right sides of the lower part of the spinning machine frame 1, there is a pipe change device 24 for all spindles and fastenings.
A bobbin conveying device 26 of a known structure for conveying bobbins using a peg tray 25 is disposed along the longitudinal direction of the machine.

Next, the operation of the apparatus configured as described above will be explained. When the machine is operated, the drive motor M and the net moving motor 11 are simultaneously driven, the line shaft 14 is driven to rotate, and the rotary impeller 18 is rotated integrally with the line shaft 14 in the direction of the arrow in FIG. At the same time, the suction net 9
moves in the direction of the arrow in FIG. As a result, a suction airflow F1 from the roller part R and spindle part S of the draft device 3 toward the suction net 9 is generated in the upper part of the spinning frame l.
occurs. The fluff generated from the roller part R, the fleece continuously supplied from the front roller at the time of yarn breakage, the fiber waste floating in the air, etc. are absorbed into this suction air flow F1.
It is adsorbed onto the adsorption net 9. Also, rotating impeller 1
8, a blowout airflow F2 is generated from the lower part of the duct 4 toward the bottom of the machine base, and the action of this blowoff airflow F2 prevents the accumulation of fluff and the like in the center of the machine base.

The fluff and the like adsorbed on the suction net 9 are sucked and removed by the suction mouth 23 at a position corresponding to the suction bomb mouth 23 and collected.

On the other hand, fluff and the like blown out from below the machine base together with the blowing air flow F2 are removed by a traveling cleaner or the like.

Fine fibers (
Some particles enter the duct 4 without being attracted to the suction net 9. The action of the suction airflow is weak at the end of the rotary impeller 18, and airflow stagnates at locations where bearings that support the rotational shaft, couplings that connect the rotational shaft, etc. are arranged, and the airflow enters the duct 4. Some of the fiber waste adheres and accumulates on the coupling 16 and bearing 17 disposed between the attachment parts of the rotary impeller 18 or on the ends of the rotary impeller 18.

When the spinning frame frame 1 continues to operate and a full tube signal is issued, compressed air is supplied to the compressed air supply pipe 21 based on the signal, and the compressed air is injected from each injection port 21a. Each injection port 21a is directed toward the end of the coupling 16, the bearing 17, or the rotary impeller 18, and the duct 4
Since the outlet 4b is provided facing the outlet 4b, fiber waste accumulated on the ends of the coupling 16, the bearing 17, or the rotary impeller 18 is removed by the jet airflow and discharged from the outlet 4b to the lower part of the machine. . Since the amount of fiber waste etc. that accumulates within the time until one full tube is filled is small, the fiber waste etc. can be easily removed even if the strength of the jet air flow is not very strong.

At the time when the full bobbin signal is issued, the full bobbin doffed last time has already been carried out, and the empty bobbin E is placed on the bobbin transport device 26.

Therefore, even if the fiber waste becomes a lump and is discharged from the duct 4, the lump of fiber waste will not adhere to the full bobbin and will not interfere with the work in the subsequent process or deteriorate the yarn quality. There isn't. Further, in this embodiment, since the injection port 21a faces the outlet 4b of the duct 4, the injection airflow does not disturb the suction airflow formed by the rotary impeller 18 and have no adverse effect on the suction action.

[Example 2] Next, a second example will be described according to FIG. 4. In this embodiment, instead of providing a large number of injection ports 21a in the compressed air supply pipe 21 extending along the line shaft 14, a large number of output ports of a rotary valve (not shown) connected to a compressed air source are provided with a large number of injection ports 21a. This embodiment differs from the previous embodiment in that one end of a large number of compressed air supply pipes 27 having injection ports 27a directed toward the ends of the coupling 16, the bearing 17, or the rotary impeller 18 are connected. As the rotary valve, for example, one having a structure similar to that disclosed in Japanese Utility Model Application Publication No. 11579/1983 is used. With this configuration, even if the same diameter is used as each compressed air supply pipe 27, the strength of the compressed air flow injected from the injection port 27a will be the same regardless of the distance from the compressed air source. Become.

Note that the present invention is not limited to the above-mentioned embodiments. For example, instead of injecting compressed air from the compressed air supply pipes 21 and 27 based on a full-bobbin signal, the bobbin conveying device 26 may inject a full bobbin. Even when there is no full bobbin on the bobbin transport device 26, such as when the empty bobbin E is inserted onto the intermediate peg 28 due to the operation of the tube changing device 24, For example, compressed air may be injected at any time. If a bobbin conveying device is not provided at the bottom of the frame, such as in a roving frame, the compressed air may be injected at any time. Also, instead of spraying compressed air for each doffing, it may be sprayed every few times, or
1a and 27a may be disposed facing in a direction other than the outlet 4b. Further, a drive motor M that drives the line shaft 14
If the injection ports 21a and 27a are installed in the duct 4, or the coupling 16 is installed where fiber waste is likely to accumulate, or if the drive motor M is installed in the duct 4, the injection ports 21a and 27a are installed only in the locations corresponding to the installation locations. may be provided. Furthermore,
In place of the configuration in which the suction net 9 is moved,
As in the device disclosed in Japanese Patent No. 28923, a structure may be adopted in which a suction net is fixed and fluff, etc. adsorbed to the suction net is collected by a movable brush.

[Effects of the Invention] As detailed above, according to the present invention, the inconvenience caused by a large amount of fiber waste passing through the suction net accumulating on bearings, couplings, etc., even without removal work by an operator. can be reliably prevented. In addition, in the invention set forth in claim 2, even when a lump of fiber waste is discharged from the duct, the fiber waste does not adhere to the full bobbin, and it does not interfere with the work in the subsequent process or cause the thread to become loose. There is no risk of quality deterioration.

[Brief explanation of drawings]

1 to 3 show a first embodiment embodying the present invention, in which FIG. 1 is a partial cross-sectional view showing the mounting state of the rotary impeller and the arrangement of the injection ports, and FIG. FIG. 3 is a schematic front sectional view of a spinning frame equipped with a cleaning device, FIG. 3 is a partial schematic plan view with the draft device omitted, and FIG. 4 is a partial sectional view of a second embodiment. Spinning frame l, duct 4, intake opening 5, suction net 9, line shaft 14, coupling 16, bearing 17
, rotary impeller 18, compressed air supply pipes 21, 27, injection ports 21a, 27a, recovery device 22, suction mouth 2
3. Bobbin conveyance device 26, suction airflow F1°

Claims (1)

[Claims] 1. A large number of rotary impellers that generate suction airflow from the opening are arranged in a duct provided with an intake opening over the entire length of the duct, and an adsorption net is provided to cover the opening. A cleaning device for a spinning machine, further comprising a compressed air supply pipe having an injection port directed between at least a mounting portion of the rotary impeller. 2. In a spinning machine in which a bobbin conveying device for carrying out a doffed full bobbin is disposed below the spindle rail along the longitudinal direction of the spinning machine table, the entire length of the duct is installed in a duct equipped with an air intake opening. A suction airflow that acts toward the opening is generated by the action of a large number of rotary impellers disposed over the entire area, and the air fluff, etc. is adsorbed onto the suction net that covers the opening. A method for cleaning a spinning machine, wherein compressed air is injected from a compressed air supply pipe having an injection port directed between at least a mounting portion of the rotary impeller when there is no full bobbin on the bobbin conveying device.