JPH05780U - Spinning machine cleaning device - Google Patents

Abstract

(57) [Abstract] [Purpose] Regarding means for preventing the attachment of fly fluff to the blade of the rotary impeller used in the fly fluff cleaning device incorporated in the base of the spinning machine. It is an object of the present invention to propose a means capable of extending the cycle and shortening the cleaning time. [Structure] Intake opening (5) covered with adsorption net (9)
In a duct (4) having a plurality of blades (20) arranged in parallel at a predetermined pitch on the peripheral surface, a plurality of rotary impellers (18) are provided along a longitudinal direction of a line shaft. (14) is arranged above, and the rotary impeller (18) generates a suction airflow toward the inside of the duct (4) through the intake opening (5), and the cotton wool and the like contained in the suction airflow are generated. The blades (20) of the rotary impellers (18) are arranged so as to have a larger arrangement pitch than the other blades so that they are attached to and removed from the adsorption net (9).

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a means for preventing the attachment of fly dust to a blade of a rotary impeller used in a fly dust cleaning device incorporated in a machine stand of a spinning machine.

[0002]

[Prior Art]

 Generally, in spinning machines such as a roving frame and a spinning frame, cotton wool is generated in the roller part of the draft device. If this is left unattended, dust will be deposited on each member of the draft device and taken into the roving or yarn during spinning to deteriorate its quality.Therefore, a cleaning device to collect this is required. Become.

As a cleaning device of this type, for example, in Japanese Patent Laid-Open Nos. 63-28923 and 63-282322, a large number of rotary impellers are installed in a duct having an intake opening along its entire length. It has been proposed to arrange an adsorption net to cover the opening and to provide a recovery device for removing the cotton dust and the like adhering to the adsorption net.

[0004]

[Problems to be solved by the device]

 In such a cleaning device, the cotton dust, etc., carried on the suction air flow sucked into the duct from the intake opening is received by the net stretched over the opening and adsorbed on the surface thereof, and the cotton dust, etc. inside the duct. Although they do not enter, fine fiber scraps etc. pass through the net mesh. When the fiber dust and the like that have entered the duct in this way reach the working area of the rotary impeller by riding on the suction airflow, the vortices and turbulence of the airflow generated there cause the side surface of the ring plate for attaching the blade of the rotary impeller. There is a tendency that the particles collide with and adhere to them, and are pushed by the air flow and gradually increase in the amount of deposition with the passage of time and stick together.

Since the fiber waste thus fixed to the blade lowers the suction efficiency of the rotary impeller, conventionally, the spinning machine is stopped at a fixed cycle and the duct is opened to clean the rotary impeller. Kimono is removed. However, this work is complicated and lowers the production efficiency of the spinning machine, so that measures have been required. An object of the present invention is to solve the above-mentioned problems of the prior art and to propose a means capable of extending the periodic cleaning cycle of the blades of a rotary impeller and shortening the cleaning time. To do.

[0006]

[Means for Solving the Problems]

 The purpose of this is to provide a plurality of blades in parallel with each other in a duct with an intake opening covered by a suction net in parallel at a predetermined pitch on the circumferential surface. Along the line shaft, and the rotary impeller generates a suction airflow toward the inside of the duct through the intake opening, and causes the cotton dust contained in the suction airflow to adhere to the adsorption net. A cleaning device for a spinning machine of the type to be removed, which is achieved by a cleaning device for a spinning machine, characterized in that the arrangement pitch of a part of the blades of each rotary impeller is made larger than the arrangement pitch of the other blades.

[0007]

[Action]

 By setting the arrangement pitch of some blades of the rotary impeller to be larger than that of other blades, the amount of air passing through the gaps between these blades increases, and the probability of blowing out the cotton dust adhering to the rotary impeller increases. , Fly dust accumulation is reduced. Also, during regular cleaning, tools such as brushes can be inserted inside the rotary impeller through the gaps between the blades in the area where the arrangement pitch is large, which facilitates cleaning work and shortens the work time. It

Hereinafter, the present invention will be described in more detail with reference to the preferred embodiments shown in the drawings.

[0009]

【Example】

 1 to 3 show an example of a cleaning device in a spinning machine to which the present invention is applied. A drafting device 3 is provided on the roller beams 2 arranged on both the left and right sides of the spinning frame 1, and a duct 4 is installed along the longitudinal direction at the center of the lower frame behind it.

The duct 4 is provided on both left and right sides with intake openings 5 for forming a suction airflow with respect to the lower part of the roller part R and the spindle part S 1 over the entire length in the longitudinal direction of the machine base. Rotating shafts 7 that are slightly longer than the height of the duct 4 are vertically provided at two positions in the head portions 6 at both ends of the frame 1 as shown in FIG. 2 (only one side is shown). Pulleys 8 with pins are fixed to the upper and lower ends of the so as to rotate together.

An endless suction net 9 is wound between the pulleys 8 so as to cover the intake opening 5. Then, via the belt 13 wound between the pulley 10 fixed to one of the rotating shafts 7 and the pulley 12 fixed to the output shaft of the net moving motor 11, the net moving motor 11 The suction net 9 is driven along with the driving.

Two line shafts 14 extend rotatably in the duct 4 along the longitudinal direction of the frame, and are driven by a drive motor M installed at the end of the frame via a belt transmission mechanism 15. As shown in FIG. 3, the line shaft 14 is composed of a plurality of parts integrally coupled by a coupling 16, and is rotatably supported by a bearing 17.

A rotary impeller 18 for generating a suction airflow through the opening 5 is attached to the line shaft 14. Each rotary impeller 18 is fixed to the line shaft 14 with a pair of mounting discs 19 penetrating the center thereof, and a ring plate 19 'is arranged between the discs 19 as shown in FIG. A large number of blades 20 curved in one direction are radially fixed to this.

A guide plate 4a having an outlet 4b facing downward is provided in the duct 4 in order to blow out a blown air flow F2 accompanying the rotation of the rotary impeller 18. A collecting device 22 is provided on the frame head 6, which is the revolving end of the suction net 9, to remove and collect the cotton dust and the like adhering to the suction net 9, and the suction mouse 23 thereof is close to the net 9. Are arranged.

In the thus configured cleaning device, the drive motor M and the net moving motor 11 are driven along with the operation of the spinning machine. As a result, the rotary impeller 18 rotates in the direction of the arrow in FIG. 1, the suction net 9 moves in the direction of the arrow in FIG. 3, and the suction airflow F from the roller part R and the spindle part S of the draft device 3 toward the suction net 9 is reached. 1 occurs.

The cotton wool generated from the roller part, the fleece continuously coming out of the front roller at the time of yarn breakage, and the like adhere to the suction net 9 by the suction airflow F1. Further, due to the rotation of the rotary impeller 18, a blowing airflow F 2 is generated downward from the lower part of the duct 4. As a result, the fly cotton is prevented from accumulating on the central portion of the frame. The cotton wool on the net 9 is sucked and removed by the suction mouse 23 and collected. On the other hand, the fly flies blown downward together with the blowing air flow F2 are cleaned by a known traveling cleaner or the like.

As described above, cotton wool or the like having a relatively long fiber length adheres to and is removed from the adsorption net 9 and does not enter the duct 4, but short fiber waste or the like passes through the mesh of the net 9. The invasion cannot be completely prevented. Such fiber waste often mixes with dust particles and collides with the blade 20 of the rotating impeller 18 rotating at a high speed to adhere to the surface thereof. Due to the air flow caused by the rotation of the rotary impeller 18, such fiber wastes are more and more pressed against the blade surface and adhere to the blade surface. Therefore, as shown in FIG. 5, the attachment points are limited to the front surface area where the blade 20 collides with air, the side surface of the disk 19 and the ring plate 19 'provided in the middle thereof. Then, it grows gradually with the passage of time, which reduces the suction efficiency of the rotary impeller, so it is necessary to clean it regularly.

In order to reduce the accumulation of fiber debris on the blades of such rotary impellers, the present invention uses a part of the blades 20 that are conventionally arranged at an equal pitch on the circumference of the cross section of each rotary impeller. The feature is that they are arranged at a wider pitch than other parts. An example of such a configuration is shown in FIG. 6. The 32 blades 20 originally arranged on the circumferential surface of the disk 19 at an equal pitch are removed once for every eight blades to provide a double pitch interval. There are 4 places.

As a result of the experiment, it was found that even if the number of blades was reduced to this extent, the suction air volume was not substantially affected. When the rotary impeller 18 is rotated, a larger amount of airflow is sucked into the rotary impeller from the area where the pitch is widened as compared with the other areas, and against the cotton flies adhering to the blade surface. It is sprayed from multiple directions. As a result, the fixation of the fly flies is loosened and blown off, and is discharged out of the duct along with the exhaust gas, preventing accumulation on the blade.

Further, at the time of regular cleaning, a cleaning tool such as a brush can be inserted into the inside of the rotary impeller from the gap between the widened blades, so that the cotton wool can be cleaned more easily and reliably than before. The work time can be shortened.

[0021]

[Effect of the device]

 According to the present invention, the arrangement pitch of a part of the blades of the rotary impeller is increased so that a large amount of airflow penetrates the inside of the rotary impeller without adversely affecting the suction air volume. Is blown off and is prevented from accumulating on the surface of the blade or disc, and the periodic cleaning cycle can be extended. Further, since it is easy to insert the brush into the rotary impeller at the time of regular cleaning, it is possible to shorten the cleaning time.

[Brief description of drawings]

FIG. 1 is a schematic front sectional view of a spinning machine showing an example of a cleaning device to which the present invention is applied.

FIG. 2 is a partial schematic plan view in which the draft device is also omitted.

FIG. 3 is a partial cross-sectional view showing the mounting of the rotary impeller.

FIG. 4 is a perspective view showing the structure of a rotary impeller.

FIG. 5 is a partial side view of the rotary impeller showing a state of adhesion / accumulation of fiber scraps and the like.

FIG. 6 is a sectional view showing an example of an arrangement of blades of the rotary impeller of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Machine frame 4 ... Duct 5 ... Intake opening 9 ... Adsorption net 14 ... Line shaft 18 ... Rotating impeller 19 ... Disc 19 '... Ring plate 20 ... Blade

Claims (1)

[Claims for utility model registration] 1. A plurality of blades, which are arranged in parallel on a peripheral surface at a predetermined pitch, in a duct having an intake opening covered with an adsorption net. Of the rotary impeller are arranged on the line shaft along the longitudinal direction, and the rotary impeller generates a suction airflow toward the inside of the duct through the intake opening, thereby removing the cotton wool and the like contained in the suction airflow. A cleaning device for a spinning machine of a type that is attached to and removed from the adsorption net, wherein the arrangement pitch of a part of the blades of each rotary impeller is made larger than the arrangement pitch of other blades. Cleaning device.