JPH0762287B2 - Cleaning device in spinning machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a cleaning device in a spinning machine such as a roving machine or a spinning machine, and particularly, to removing dust such as cotton wool or fiber waste in the vicinity of a draft part or a spindle part. The present invention relates to a cleaning device that prevents accumulation.

(Prior Art) Generally, in this type of spinning machine, cotton wool is generated in a roller part or the like of a draft device, and in a roving machine, cotton wool is separated from roving yarns that are connected between the roller part and the flyer top. Then, these fly dusts are deposited on each member constituting the draft part or on the flyer support rails, and the fly dusts are lumped and brought into the passing sliver or the roving yarn to deteriorate the quality of the spun yarn. I will let you. Also,
Conventionally, as a cleaning device for preventing the accumulation of fly cotton, for example, in Japanese Utility Model Publication No. 57-38383, blow pipes for blowing compressed air toward the roller parts are provided on the top roller side and the bottom roller side of the draft device, respectively. At the same time, the blower pipe is arranged at the front end of the flyer support rail, and the intake pipe communicating with the suction duct is provided at the rear of the draft device.The blown air is sucked by the blowout air flow from each blower pipe and the suction air flow of the intake pipe. A device for suction removal is disclosed.
On the other hand, in the spinning machine, a pneumatic device is provided at the exit of each roller part to remove the cotton wool adhering to the spun yarn during normal spinning, and to suck and remove the continuously supplied fleece when the yarn is broken. . Traveling cleaners that run along the spinning machine stand are also widely used as cleaning devices.

However, when a traveling cleaner is used, there is a problem that the fly dust blown off from the machine base due to the air flow from the traveling cleaner accumulates on the machine base again, or the cotton fly is scattered to deteriorate the work environment. is there.
Further, in a device or a pneumatic device that sucks and removes cotton dust into the suction duct by the action of the air blow pipe and the intake pipe, a filter box is provided at the end of each spinning machine, and the sucked cotton dust is accumulated on the filter. Therefore, there is a problem that the filter needs to be regularly cleaned, and that the cleaning cycle is short, and that the suction action on the side far from the filter box is reduced.

In order to solve the above-mentioned problems, the applicant of the present application has previously shown in FIG.
Duct box that has an opening for intake that forms the
41 is provided over the entire length of the machine base, and a suction airflow generator having a rotary impeller 42 extending in the machine longitudinal direction is provided in the dust box 41 over the entire length of the dust box 41, and blows out over the entire length of the suction airflow generator. An apparatus has been proposed in which an opening 43 for blowing out the air flow F2 is provided and a suction net 44 is attached to the suction side of the suction air flow generation device.

This device uses a rotary impeller 42 to rotate the dust box 41.
A suction air flow F1 is generated in the intake opening of the suction air flow, and the cotton dust, fleece, and the like are adsorbed and deposited on the adsorption net 44 by the suction air flow. Then, the cotton wool, fiber wastes, etc. accumulated on the suction net 44 are manually moved periodically, or as shown in FIG. 7, a suction net drive device 45 is provided to move the suction net 44 in the machine longitudinal direction. At the same time, the suction mouse 46 sucks and removes the accumulated fiber debris from the adsorption net 44. However, the rotary impeller 42 for generating the suction airflow F1 has a pair of mounting discs 42a as shown in FIG.
Formed by fixing a large number of curved plates 42b in between,
A rotary shaft 47 protruding from the mounting disk 42a is connected to the output shaft of the drive motor M so that the rotary shaft 47 is driven to rotate. Therefore, the length of the rotary impeller 42, that is, the curved plate 42b
If the length is increased, the curved plate 42b is twisted when the rotary impeller 42 is rotated, and the efficiency of generating the suctioned air flow is deteriorated. Therefore, the rotary impeller 42 cannot be made too long. On the other hand, in the spinning machine, the number of spindles is increased, and the machine stand tends to be long. When the cleaning device using the rotary impeller 42 is equipped, as shown in FIG.
A large number of double-ended motors M equipped with rotary impellers 42 on both sides must be arranged in the dust box 41. When a large number of drive motors M are used, not only the efficiency of use of power is poor, but also the installation cost of the drive motor as a whole is high and the wiring work is complicated.

In order to solve the above-mentioned problems, the applicant of the present application has invented a device in which a rotary impeller is attached to a line shaft extending along the machine longitudinal direction and a large number of rotary impellers are rotationally driven by one motor.

(Problems to be Solved by the Invention) However, in the case of a configuration in which a single motor drives a large number of rotary impellers, in addition to stopping the motor, a driving force transmission provided between the motor and the line shaft is transmitted. Due to various causes such as a defective mechanism, damage to the line shaft, damage to the coupling connecting the line shafts, etc., a part or all of the rotary impeller may stop or malfunction. When the rotary impeller stops, the cotton wool cannot be collected, and when the yarn breaks, the yarn continuously supplied from the roller part entangles with the spun yarn of the adjacent weight, causing co-breakage, which results in a chain of multiple weights. The situation will occur. Therefore, when the rotary impeller stops, it is necessary to immediately detect it and stop the machine base. The present invention intends to reliably detect the stoppage or rotation failure of the rotary impeller with the minimum detection unit regardless of the cause of the stoppage or rotation failure of the rotary impeller.

Configuration of the Invention (Means for Solving the Problems) In order to solve the above-mentioned problems, in the present invention, a duct having an intake opening is provided over the entire length in the machine longitudinal direction, and the duct is provided in the duct. A large number of rotary impellers that generate suction airflow from the openings are arranged over the entire length in the machine longitudinal direction, and a suction net is arranged so as to cover the openings, and each rotary impeller penetrates through the center. Fixed to the line shaft that is extended along the machine longitudinal direction and is rotationally driven by the drive means so as to be integrally rotatable,
Further, there is provided a detection device that detects the rotation of the driven-side end of the line shaft and that issues a machine stop signal when the rotation speed falls below a predetermined rotation speed.

(Operation) In the device of the present invention, when the rotary impeller arranged in the duct is rotationally driven, a suction airflow is generated from the outside of the duct toward the intake opening of the duct. Due to this suction air flow, cotton fly generated in the roller part and spindle part, fleece continuously supplied from the front bottom roller at the time of yarn breakage, floating cotton fly in the air, and the like are adsorbed on the adsorption net covering the opening. When the rotary impeller is fixed so as to be integrally rotatable with respect to the line shaft that is rotationally driven by the driving means, the number of spindles increases the length of the machine base, which requires a large number of rotary impellers. In addition, a large number of rotary impellers are smoothly driven by one motor as a driving means. Further, since the rotation of the driven side end of the line shaft is detected, even if any trouble occurs from the motor of the drive source to the detection unit, the influence is shown in the detection unit, and the rotary impeller is surely Can be detected or the rotation failure can be detected, and the machine base is stopped based on the detection, so that the occurrence of yarn breakage over a large number of chain-like weights during the spinning operation can be reliably prevented.

(Example) Hereinafter, an example in which the present invention is embodied in a spinning machine will be described.
It will be described with reference to FIG. As shown in FIG. 4, a duct 4 is arranged over the entire length in the longitudinal direction of the machine frame in the center of the rear lower machine frame of the draft device 3 installed on the roller beams 2 arranged on both the left and right sides of the spinning machine frame 1. It is set up. Intake openings 5 are formed on both left and right sides of the duct 4 over the entire length in the machine longitudinal direction. As shown in FIG. 1, rotating shafts 7 are vertically arranged at two positions on both ends of the spinning machine head 1 and a pulley 8 with pins is integrally rotated on both upper and lower ends of each rotating shaft 7. It is fitted and fixed as much as possible. An endless suction net 9 is wound between the pinned pulleys 8 so as to extend along the longitudinal direction of the machine base while covering the intake opening 5. The suction net 9 has a reinforcing belt 10 formed on both sides thereof with engagement holes (not shown) that engage with the pins of the pinned pulley 8, and the engagement holes engage with the pins of the pinned pulley 8. In this state, it is wound around the pulleys 8 with pins. A belt 14 wound around a driven pulley 11 fitted and fixed to one of the rotary shafts 7 and a drive pulley 13 fitted and fixed to the output shaft of the motor 12.
The suction net 9 is driven by the drive of the motor 12 via the.

A drive motor M as a drive means is arranged at an end of the machine base, and a line shaft 15 is arranged on an output shaft of the drive motor M so as to extend along the longitudinal direction of the machine base. Third
As shown in the figure, the line shaft 15 is divided into a plurality of parts, which are connected to each other through a coupling 16, and a bearing 17
It is rotatably supported by. A large number of rotary impellers 18 for generating suction airflow from the intake opening 5 are attached to the line shaft 15. In the rotary impeller 18, a pair of mounting discs 19 are integrally rotatably fitted to the line shaft 15 with the center thereof being penetrated by the line shaft 15, and a large number of curved plates 20 are provided between the mounting discs 19. Are fixed. A rotary encoder 21 that outputs a pulse voltage corresponding to the rotation of the line shaft 15 is attached to the driven-side end of the line shaft 15. The rotary encoder 21 is connected to the motion detector 22 provided in the control unit, and the motion detector 22 monitors the rotation speed of the end portion of the line shaft 15 based on the output signal of the rotary encoder 21, and when the rotation speed falls below a predetermined rotation speed. The output relay of the motion detector 22 operates to output the machine stop signal.

Further, as shown in FIG. 4, a guide plate 4a is formed in the lower portion of the duct 4 in such a shape that a blowout airflow F2 accompanying the rotation of the rotary impeller 18 spreads downward so as to blow out toward the lower side of the machine base.
Is provided. A suction mouth 23, which is in communication with an intake source, is provided on the machine head 6 as a removing means for removing dust and the like adsorbed on the adsorption net 9.

Next, the operation of the device configured as described above will be described. When the machine base is operated, the drive motor M is also driven, the line shaft 15 is rotationally driven, and the rotary impeller 18 rotates integrally with the line shaft 15 in the arrow direction of FIG. As a result, a suction air flow F1 is generated in the upper part of the spinning frame 1 from the roller part 3a of the draft device 3 and the spindle part 24 toward the suction net 9. By this suction airflow F1, flies generated from the roller part 3a, fleece continuously supplied from the front bottom roller at the time of yarn breakage, or fiber debris floating in the air are adsorbed on the adsorption net 9.
Further, due to the rotation of the rotary impeller 18, a blowout airflow F2 is emitted from the lower part of the duct 4 toward the lower side of the machine base, and is accumulated on the chin pulley or the like arranged in the center of the machine base due to the action of the blowout airflow F2. The cotton dust is blown off and is blown out from below the machine base to the outside of the machine body together with the blowing airflow F2. Fly dust and the like blown out from below the machine base is removed by a traveling cleaner or the like. On the other hand, the suction net 9 moves in the direction of the arrow in FIG. 1 by the drive of the motor 12, and the cotton dust and the like adsorbed and deposited on the suction net 9 at the position corresponding to the suction mouth 23 is sucked and removed by the suction mouth 23.

A rotary impeller installed in the duct 4 by using multiple machine bases
Although a large number of 18 are required, since each rotary impeller 18 is fixed so as to be integrally rotatable with respect to the line shaft 15, even if the rotation speed becomes high, the twisting of the bending plate 20 that generates the suction airflow is prevented. There is hardly any, and the suction airflow F1 is generated without any trouble at any position of the duct 4. Further, all of the rotary impellers 18 are driven by the single drive motor M via the line shaft 15, but the rotation speed of the driven side end of the line shaft 15 is based on the output signal of the rotary encoder 21. The output relay is operated to output a machine stop signal to stop the machine when the rotation speed becomes equal to or lower than a predetermined value. That is, when a part or all of the rotary impeller 18 is stopped or fails in rotation due to various causes such as stop of the drive motor M, breakage of the line shaft 15, breakage of the coupling 16 connecting the line shaft 15, and the like. , Immediately motion detector
22 detects this and the machine is stopped. Therefore, the operation of the machine base is not continued when the rotary impeller 18 is stopped or is not rotating properly, and the yarn continuously supplied from the roller part during the yarn breakage entangles with the spun yarn of the adjacent weight. It is possible to surely prevent the occurrence of a situation in which co-breakage occurs and the chain extends over a large number of weights.

The present invention is not limited to the above-described embodiment. For example, as shown in FIG. 5, a double-headed drive motor M is arranged in the central portion of the duct 4 and a line shaft 15 is provided at each output shaft thereof. The rotary encoder 21 may be attached to the driven side end of each line shaft 15 by connecting them. Further, instead of directly connecting the line shaft 15 to the output shaft of the drive motor M, a gear or belt transmission mechanism or the like is provided between the end of the line shaft 15 and the output shaft of the drive motor M, or as a drive means. Instead of the drive motor M, the main shaft of the spinning machine and the line shaft 15 may be connected by a belt transmission mechanism, or the line shaft 15 may be provided in two rows and the rotary impellers 18 may be arranged in two rows. Further, the number of drive motors M is not limited to one, but a plurality of drive motors M may be provided by increasing the size of the machine base in accordance with the increase in the number of machine bases. Also, a proximity switch may be used instead of the rotary encoder to detect the rotation speed of the line shaft and activate the motion detector. Further, instead of moving the suction net 9, the suction net 9 is arranged in a fixed state to remove the cotton wool and the like adsorbed on the suction net 9 by other means, or other than the spinning machine. You may apply to a roving machine etc.

Effects of the Invention As described in detail above, according to the present invention, the suction airflow of sufficient strength acts on the roller part and the spindle part, which are sources of dust, etc., at any position in the machine longitudinal direction. It is possible to prevent the accumulation of dust and the like, and the number of driving means for driving the rotary impeller that generates the suction air flow is small, so that not only the manufacturing cost, the assembling work or the maintenance work are simplified, Power consumption is also done efficiently. In addition, a large number of rotary impellers through the line shaft,
Although it is driven, if part or all of the rotary impeller stops or fails to rotate due to various reasons, it is immediately detected and the machine base is stopped. It has an excellent effect that it is possible to surely prevent the situation in which a large number of weights are chained in a non-recoverable manner or the like is unrecoverable.

[Brief description of drawings]

1 to 4 show a first embodiment embodying the present invention. FIG. 1 is a schematic plan view in which a draft device is omitted, and FIG. 2 is a positional relationship between a rotary impeller and a suction net. FIG. 3 is a schematic cross-sectional view showing a connected state of the line shaft and a mounted state of the rotary impeller on the line shaft, and FIG. 4 is a schematic side sectional view of a spinning machine equipped with a cleaning device.
FIG. 5 is a schematic perspective view showing a modified example, FIG. 6 is a side sectional view of a conventional device, FIG. 7 is a schematic plan view of the same, and FIG. 8 is a perspective view of a rotary impeller. The duct 4, the intake opening 5, the suction net 9, the line shaft 15, and the rotary encoder 21 as a detection device.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Masao Wakai 13-13 Higashimachi, Shimada City, Shizuoka Prefecture (72) Inventor Asahiro Tanaka 1-1037 Higashisakura, Higashi-ku, Nagoya-shi, Aichi Japan Ruwa Co., Ltd. (72) Inventor Tsutomu Miyazaki 2-chome Toyota-cho, Kariya-shi, Aichi Stock company Toyota Industries Corporation (72) Inventor Masashi Oshino 2-chome Toyota-cho, Kariya city, Aichi Stock company Toyota Automatic Loom Works (72) ) Inventor Kenji Kinoshita 2-chome, Toyota-cho, Kariya city, Aichi Prefecture Toyota Industries Corporation (56) Reference JP 62-62936 (JP, A)

Claims (1)

[Claims] 1. A duct provided with an intake opening is arranged over the entire length in the machine longitudinal direction, and a large number of rotary impellers for generating suction airflow from the openings are provided in the duct over the entire length in the machine longitudinal direction. A suction net is disposed so as to cover the opening, and the rotary impeller penetrates through the center of the suction net and extends in the longitudinal direction of the machine base. A cleaning device for a spinning machine, which is integrally rotatably fixed and which is provided with a detection device that detects the rotation of the driven side end of the line shaft and that issues a machine stop signal when the rotation speed falls below a predetermined rotation speed.