JPH08381Y2 - Spinning machine cleaning device - Google Patents

Description

TECHNICAL FIELD The present invention relates to a cleaning device for sucking and cleaning cotton wool generated mainly in a draft part in a spinning machine such as a spinning machine and a roving machine.

2. Description of the Related Art Conventionally, various cleaning devices of this kind have been proposed, and the applicant of the present application has also filed Japanese Patent Application No. 1-105649.
In this Japanese Patent Application No. 1-105649, the exhaust flow from the intake flow generating units provided along the longitudinal direction of the spinning machine causes
It has been proposed that the cotton wool sucked from the suction side of the intake air flow generation unit is sent into the transport duct, the direction of the exhaust gas flow is changed to the longitudinal direction of the transport duct, and the cotton wool is collected at one end of the transport duct. An air discharge port is formed along the longitudinal direction of the transfer duct, and a continuous net (filter) is stretched over the discharge port to prevent the flow velocity in the transfer duct from rising. The parts are discharged from here. Exhaust air adheres to the inner surface of the net and clogs it.Therefore, the flow speed of the exhaust flow from the intake air flow generation unit is periodically increased to blow off the adhered inner surface of the net, or along the net. There is described that a part of the net is closed by a moving closing plate, and the exhaust air from the part is temporarily stopped to remove the attached cotton wool from the net.

Problems to be Solved by the Invention Increasing the flow velocity in order to prevent the clogging of the net means increasing the rotation of the fan in the intake flow generating unit, which is not preferable because it causes noise. Further, in the method of closing a part of the net with the closing plate, in order to enhance the airtightness of the portion closed by the closing plate, for example, a sealing material made of a material such as rubber is attached to the conveying duct to attach the closing plate to the sealing material. It may be possible to slide it along the transport duct in a state of pressure contact with it, but at this time a large running power is required to run the blocking plate because the frictional resistance between the blocking plate and the sealing material is large, and There is a problem that the seal material wears in a short time because the plate comes into sliding contact with the seal material.

The present application provides a cleaning device capable of smoothly removing the fly dust attached to the inner surface of the net (filter) in the transfer duct in the above-described cleaning device.

Means for Solving the Problems A transfer duct having a dust collection chamber connected to one end is provided over substantially the entire length of the machine stand, and an intake pipe opening to a cleaning area of the spinning machine is provided in the intake fan and an exhaust pipe connected to the transfer duct. A plurality of intake flow generation units attached to the exhaust pipe are arranged along the transfer duct, and a plurality of exhaust windows are formed at a position downstream of the exhaust pipe connection port of the side plate of the transfer duct except for connecting the exhaust pipes. A moving body that moves oppositely is provided in the transport duct, a sealing material is attached to the peripheral edge of the exhaust window, an endless flat belt that can freely circulate is provided on the moving body, and the exhaust window is closed with the endless flat belt while the moving body is moving. It is characterized in that it is configured by.

Action The fly dust sucked from the intake pipe by the action of the intake air blower is collected in the dust collecting chamber at one end of the transfer duct through the intake air blower and the air flow through the transfer duct. A part of the exhaust flow is discharged from the exhaust window of the transfer duct to the outside of the duct, the flow velocity in the duct becomes a certain speed or less, and suction is smoothly performed. In order to remove the cotton dust adhering to the exhaust window, the endless flat belt revolvingly reciprocated on the moving body faces the conveying duct surface provided with the exhaust window. The exhaust window is closed while making pressure contact with the seal material attached to the peripheral edge of the movable body and revolving in the reciprocating direction of the moving body, and the dust trapped on the closed exhaust window is smoothly peeled off.

Embodiment In FIGS. 1 and 2, one intake flow generation unit 10
Has one intake fan 11. This intake fan
A so-called plate-type fan 11 has a spiral casing 12 having a large number of flat blades 13 in the radial direction. The blade 13 is connected to the shaft 14 of the drive motor M1,
On the upper surface of the casing 12, an intake port 15 is opened above the shaft 14. The intake fan 11 may be a centrifugal fan or blower of another type. A box-shaped connection duct 16 is connected to the intake port 15, and four intake pipes 17 are connected to the connection duct 16. One intake pipe 17 corresponds to a predetermined number (six) of spindles 1, and its tip is open to the rear surface of the roller part 2. As shown in FIG. 2, an exhaust port 18 of the intake fan 11 is provided at the end of the spiral casing 12, and the exhaust port 18 is connected to an exhaust pipe 19 so as to extend from the intake port 15 in the axial direction. The air drawn into the air changes direction at a right angle and
Discharged radially from. A predetermined number of such intake flow generating units 10 are installed on the back of the roller part 2 (almost the center of the width of the spinning frame) along the length of the frame. Below the intake flow generation unit 10, the spring piece 3
In the space between and, a transfer duct 20 is arranged extending over almost the entire length in the machine longitudinal direction. As shown in FIG. 3, the transport duct 20 is a combination of a right plate 21, upper and lower plates 23a and 23b, and a left plate 24,
A filter net 25 having the same width as the left plate 24 and substantially the same length in the longitudinal direction is sandwiched between the upper and lower plates 23a and 23b to have a rectangular cross section. The upper plate 23a of the transfer duct 20 is provided with exhaust pipe connection ports 22 at a predetermined pitch in the longitudinal direction, and the exhaust pipes 19 of each unit 10 are connected to the exhaust pipe connection ports 22 with respect to the transfer duct 20. Tilt in the same direction (diagonally downward) (30
It is attached (refer to Fig. 7). Therefore the exhaust pipe 19
The exhaust flow from the exhaust is discharged diagonally downward, and then the transfer duct.
It will flow along 20.

As shown in Figs. 6 and 7, the left plate 24 has a partitioning portion 24a which has the same longitudinal position as the spring piece 3 when the machine base is mounted.
And a filter box 45 connected to one end of the transport duct 20.
A plurality of rectangular holes are punched in a portion except the portion 24b from the unit 10 farthest from the unit 10 to the unit 10 adjacent to the unit 10 to form an exhaust window 26. A sealing material 27 made of a material such as rubber is adhered to the periphery of each exhaust window 26. The sealing material 27 is located inside the inner surfaces of the upper and lower plates 23a and 23b and is closed by an endless flat belt 36 described later. The airtightness at that time is increased. The amount of air discharged from the net 25 is such that the amount of air discharged from one unit 10 per unit time is discharged between the unit 10 and the unit 10 on the exhaust flow downstream side thereof. The roughness of the filter net 25 and the opening area of the exhaust window 26 are set so that the flow velocity of the air flow in the transfer duct 20 is within a certain range (6 to 20 m /
s).

As shown in FIG. 3, vertical guide rails 30a, 30b extending in the longitudinal direction and having a U-shaped cross section are fixed to the upper and lower ends of the outer surface of the left plate 24 of the transport duct 20. The moving body 31 that reciprocates while being opposed to the outer surface of the left plate 24 of the 20 is guided. In FIGS. 4 and 5, the frame 32 of the moving body 31 has two stays 32c and 32d between upper and lower plate members 32a and 32b which extend in the machine longitudinal direction and oppose each other in the vertical direction.
Is fixed and assembled. A guide plate 34 for horizontally guiding the upper portion of an endless flat belt 36 described later is attached to the stays 32c, 32d. Also, the upper and lower plate members 32
Two fixed shafts 35, 35 are fixed between a and 32b at a longitudinal interval wider than the longitudinal length of the exhaust window 26, and both ends of the fixed shafts 35, 35 project outside the upper and lower plate members 32a, 32b. ing.
Belt rollers 33, 33 are rotatably supported on the fixed shafts 35, 35, and an endless flat belt 36 wider than the vertical width of the exhaust window 26 is wound between the belt rollers 33. Left and right guide rollers 37 are respectively supported on both ends of the fixed shaft 35,
These left and right guide rollers 37 are attached to the upper and lower guide rails 30a, 30
Guided by b. Further, the two upper and lower guide rollers 39 pivotally supported by the bracket 38 attached to the lower surface of the lower plate member 32b of the frame 32 for vertical position regulation are guided by the lower guide rails 30b, and the moving body 31 is one. When completely opposed to the exhaust window 26, the endless flat belt 36 is pressed against the entire circumference of the sealing material 27 of the exhaust window 26 (Fig. 3). The endless flat belt 36 is made of different materials on the outer peripheral surface and the inner peripheral surface, and the frictional force on the outer peripheral surface is larger than the frictional force on the inner peripheral surface, preventing slippage with the seal material 27. There is. In this embodiment, the sealing material attached to the periphery of the exhaust window 26 formed in the transport duct 20 is a fixing material made of metal or the like, and the outer peripheral surface of the endless flat belt 36 of the moving body 31 is made of rubber material or the like. It may be a sealing layer composed of Also, two pieces are provided on both ends of the upper surface of the lower plate member 32b.
Two blocks 40, 40 are fixed to each other, and a drive pulley 41 and a driven pulley 42 attached to the drive motor M2 are attached to the blocks 40, 40 at both longitudinal ends of the machine base as shown in FIGS. 6 and 7. Both ends of the tow rope 43 wound around are tied together. Further, the switches 44, 44 are arranged on the machine base in proximity to the two pulleys 41, 42, and the moving body 31 moves to the towing rope 4
When it is pulled by 3 and comes into contact with this switch 44, the rotation direction of the drive motor M2 is reversed, and the moving body 31 is reciprocated along the longitudinal direction.

Next, in the filter box 45, as shown in FIG. 7, a filter chamber 47 and an exhaust passage 48 are defined by a filter 46 that separates the cotton dust, lint, etc. carried along with the exhaust flow from the air. A damper 49 for shutting off exhaust is provided in the middle of the exhaust passage 48.
Is prepared. A dust collecting chamber 50 is provided below the filter chamber 47, and the dust collecting chamber 50 and the filter chamber 47 are partitioned by a take-out damper 51 so as to be openable and closable. The dust collection chamber 50 is a net 52
A suction fan 53 is provided below.

Next, the operation will be described. When the spinning machine is started, the motors M1 of the intake flow generation units 10 are simultaneously rotated. Motor M1
Rotation of the blade 13 causes the intake pipe 17 to move to the roller part 2
Aspirate the cotton wool generated in. The sucked cotton wool is sucked into the casing 12 from the intake port 15 through the connection duct 16 together with the suction airflow, and is obliquely discharged from the exhaust port 18 into the transport duct 20 together with the exhaust flow. The fly waste thus discharged together with the exhaust flow is carried to the filter box 45 by riding on the exhaust flow (axial flow) whose direction is changed in the longitudinal direction within the transfer duct 20.

This axial flow has a substantially constant flow velocity Vo between the intake flow generation unit 10 farthest from the filter box 45 and the second unit 10, and the flow velocity rises at the point where it merges with the exhaust flow of the second unit 10. To do. However, between the second unit 10 and the third unit 10, since the exhaust flow generated by one unit 10 is discharged through the exhaust window 26, the increased flow velocity is the same as the exhaust flow from the third unit 10. Immediately before the point of merging, the flow returns to Vo, and the flow velocity is controlled in the same manner as described below to keep the flow velocity within a certain range, noise is less likely to occur, and the transport duct 20
Each intake flow generation unit 10 while suppressing the increase of pipe resistance inside
The suction capacity can be made almost constant. In this way, the fly waste carried to the filter box 45 is normally exhausted by the damper 49.
Since the 48 is not blocked, only the exhaust flow is discharged to the outside through the exhaust passage 48. As a result, cotton wool adheres to the filter 46. The dust that has adhered is taken out to the dust collecting chamber 50 by closing the damper 49 and opening the take-out damper 51 at the same time and rotating the suction fan 53 at the same time.

A part of the exhaust flow is constantly discharged to the outside from each exhaust window 26, and a part of the fly dust adheres to the inside of the filter net 25 located in the exhaust window 26 by this exhaust flow. On the other hand, the left body
Since the exhaust flow is not discharged from the filter net 25 located inside the partition portion 24a and the portion 24b between the 24 adjacent exhaust windows 26, 26, the fly waste does not adhere. Next, in order to remove the fly dust adhering to the exhaust window 26, the drive motor M2 is driven in the forward direction to pull the towing rope 43, and the moving body 31 moves at a constant speed from one end to the other end of the transport duct 20 ( When the moving body 31 comes into contact with the switch 44 at the other end, the drive motor M2 reverses and the moving body 31 moves toward one end. If the tip of the endless flat belt 36 faces the exhaust window 26 while the moving body 31 is moving, the endless flat belt 36 is pressed against the sealing material 27, and the exhaust window 26 is closed while the endless flat belt 36 is rotated as the moving body 31 moves. When the endless flat belt 36 completely faces the exhaust window 26, the endless flat belt 36 is pressed against the entire circumference of the sealing material 27 to completely prevent air from being exhausted from the exhaust window 26, and the air flow in the transport duct 20 in the axial direction. By this, the cotton wool adhering to the net 25 is reliably peeled off and is carried into the filter box 45. Further, since the endless flat belt 36 circulates due to the frictional force between the endless flat belt 36 and the sealing material 27 while closing the exhaust window 26, the endless flat belt 36 does not slide with respect to the sealing material 27, so the moving body is moved. It is not necessary to make the drive motor M2 strong, energy can be saved, and wear of the seal material 27 is suppressed.

Next, referring to FIG. 10, a cleaning device arranged so as to correspond to the fly flies generated in the flyer of the roving frame 60 will be described. The intake air flow generation unit 10 of this cleaning device has a predetermined vertical lengthwise direction on the flyer side of the machine base in comparison with the intake air flow generation unit 10 of the above-described embodiment which is horizontally arranged at the center of the machine base width. A number of units are installed, and the intake pipe 17 of each of the intake flow generating units 10 is formed so as to expand corresponding to the back surface of a predetermined number of flyers, as is known in Japanese Patent Publication No. 60-12454. Then, it is similar to the above-mentioned embodiment. Further, similarly to the above-described embodiment, each exhaust pipe 19 of the predetermined number of intake flow generation units 10 is connected to the left plate 24 of the transport duct 20 extending in the machine longitudinal direction, and the exhaust window 19 is connected to the lower plate 23b of the transport duct 20. 26 and a mobile unit 31 are provided.

Next, referring to FIG. 8 and FIG.
Will be described. In this embodiment, the moving body of the first embodiment is used.
At 31, a belt roller 33,
33 is removed, and four support members 54 are provided instead of the stays 32c and 32d provided between the upper and lower plate members 32a and 32b, and the guide plates 34 whose both ends in the longitudinal direction are curved are fixed to the support members 54. Form a frame 32, and an endless flat belt 36 is mounted on the outer surface of the guide plate 34 as a moving body
The endless flat belt 36 can be wound freely in the direction of movement.
The upper part is guided horizontally.

Although the exhaust window 26 and the moving body 31 are provided on the left plate 24 of the transport duct 20 in this embodiment, they may be provided on either the right plate 21 or the lower plate 23b.

Effects of the Invention As described above, according to the device of the present invention, the fly dust sucked from the intake pipe can be reliably collected in the dust collection chamber at one end of the transfer duct by the exhaust flow of the intake flow generation unit. The transfer duct is provided with an exhaust window along the longitudinal direction, and a part of the exhaust flow is discharged from this, so that the flow velocity in the transfer duct is kept within a certain range and the flow rate in the transfer duct increases as the flow rate increases. It is possible to suppress an increase in the conduit resistance of the above, and the suction capacity (suction pressure) in each intake flow generation unit can be made substantially constant. The cotton wool attached to the exhaust window can be smoothly removed by closing a part of the exhaust window by the endless flat belt of the moving body that reciprocates along the exhaust window.

Also, the endless flat belt is one of the exhaust windows of the transport duct.
When closing the part, the endless flat belt is pressed against the sealing material and circulates due to the frictional force with the sealing material due to the reciprocating movement of the moving body, and does not slide on the sealing material. Therefore, it is possible to save energy, and it is possible to suppress wear of the sealing material.

[Brief description of drawings]

1 is a sectional view of a spinning machine equipped with the device of the present invention, FIG. 2 is a plan view of FIG. 1, FIG. 3 is an enlarged sectional view taken along line III-III of FIG. 2, and FIG. Fig. 5, Fig. 5 is a top view of Fig. 4, Figs. 6 and 7 are operation explanatory views, Fig. 8 is a plan view of another moving body, and Fig. 9 is a top view of Fig. 8 and Fig. 10. FIG. 1 is a sectional view of a roving frame equipped with the device of the present invention. 2 ... Roller part, 10 ... Intake flow generation unit, 11 ...
… Intake ventilator, 17 …… Intake pipe, 19 …… Exhaust pipe, 20 …… Transport duct, 22 …… Exhaust pipe connection port, 26 …… Exhaust window, 27 ……
Sealing material, 31 ... moving body, 36 ... endless flat belt,
50 ... dust collection chamber

Claims (1)

[Scope of utility model registration request] 1. A transport duct having a dust collecting chamber connected to one end thereof is provided over substantially the entire length of the machine stand, and an intake duct having an intake pipe opening to a cleaning area of a spinning machine and an exhaust pipe connected to the transport duct are attached to the intake fan. A plurality of intake air flow generation units are arranged along the transfer duct, and a plurality of exhaust windows are formed at a position downstream of the exhaust pipe connection port of the side plate of the carrying duct other than connecting the exhaust pipes, facing the side plate. The transfer duct is installed in the transfer duct, the sealing material is attached to the periphery of the exhaust window, and the movable body is provided with an endless flat belt that can be wrapped around the exhaust window while the movable body is being moved. A cleaning device for a spinning machine characterized by being configured.