JPH0428815B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a cotton collecting device in a spinning machine. Conventional technology In general, a cotton collection device in a spinning machine has an intake nozzle installed at each drafting part of each spindle arranged in parallel on the machine stand.
A configuration is adopted in which each intake nozzle is connected to a common intake duct, and this intake duct is connected to a suction fan. Conventional devices include a fixed screen type and a rotating screen type. As shown in FIG. 7, the conventional screen fixed type device has a partition plate 2 erected inside a sealed housing 1 to form an intake chamber 3 and an exhaust chamber 4 on both sides. An air intake duct 5 is connected to the lower end of the partition plate 2, and the air intake duct 5 is connected to a plurality of air intake nozzles that open at the lower part of the drafting part of each spindle arranged in parallel on the machine base.
At the same time, the suction fan 6 is fixed through the suction chamber 3.
The periphery of an umbrella-shaped screen 7 disposed on the screen 7 is attached and fixed to the partition plate 2 via a bracket 8, and the fiber cotton sucked from the suction nozzle by the suction force of the suction fan 6 is transferred to the suction duct 5 along with the suction air. The liquid is sucked into the housing 1 through the air and adheres to the screen 7. The screen rotating type conventional device has side plates 11a and 11b of a sealed casing 11, as shown in FIG.
Partition plates 12 and 13 are fixed to substantially the center of the inner surface of the housing 11 so as to face each other in the form of tongues, and a cage-shaped screen 14 with a built-in suction fan is rotatably disposed in the upper part of the interior of the housing 11. Two scraping rollers 15 and 16 are rotatably provided below 14, and
An intake duct 17 is disposed in contact with the screen 14, and has a large number of intake nozzles branched and connected to the side plate 11b of the housing 11. The intake duct 17 is connected to the side plate 11b above the partition plate 13, and is opened below the scraping rollers 15 and 16. A cotton collection chamber 19 is formed in. The fiber cotton is sucked from the suction nozzle by the suction force of the suction fan.
Inhaled into the housing 11 through the intake duct 17,
After adhering to the surface of the rotating screen 14, it is scraped off by scraping rollers 15 and 16 and dropped into the cotton collection chamber 19. Problems to be Solved by the Invention According to the conventional screen fixed type device, the screen 7 is manually cleaned by an operator, and the suction fan 6 must be stopped during cleaning. In this case, it is not possible to clean the drafting section of each spindle of the spinning machine during operation, resulting in a decrease in yarn quality. Therefore, it is necessary to reduce the number of times the screen 7 is cleaned as much as possible.To do this, a large screen 7 should be used, and even if the amount of fibers attached to the screen 7 increases, the minimum suction pressure should be maintained for a long period of time. It is necessary to set the desired suction pressure _P1 to a value significantly higher than the minimum suction pressure _P2 , as indicated by the polygonal line a shown in FIG. As a result, the suction fan 6 becomes large, consumes a large amount of energy, and becomes expensive. Moreover, as mentioned above, since the screen 7 is cleaned manually,
It required a lot of effort and effort, and the workability was poor. Note that cleaning of the screen 7 is automatically performed by switching between two intake means (for example,
JP-A No. 62-133133) has also been proposed, but there was a problem in that the cotton collecting action of the machine base had to be stopped while the screen 7 was being cleaned. In addition, according to the conventional screen rotation type device,
Since continuous suction is possible without stopping the suction fan, yarn quality does not deteriorate. However, power to rotate the screen 14 and power to rotate the scraping rollers 15 and 16 for scraping the fibers from the screen 14 are required, which makes the device complicated and expensive, and consumes a lot of power. There was a problem with high costs. Means for Solving the Problems The present invention has been proposed in view of the above-mentioned problems, and is a system in which a large number of intake nozzles installed in each drafting section of each spindle arranged in parallel on the machine base are branch-connected. 1 intake duct, and a J-shaped partition plate arranged approximately at the center inside the sealed casing to partition a first intake chamber and a concentrated cotton collection connection chamber on both sides, and a J-shaped partition plate. A main body of an individual cotton collection device having a second intake chamber with an open upper surface formed therein, and a connecting opening of the intake duct at the lower end of the first intake chamber so as to be substantially perpendicular to the first intake chamber; A second air intake duct connects the connection chamber and the concentrated cotton collection device, and the second air intake duct is pivotably supported above the top opening of the second air intake chamber, and communicates between the first and second air intake chambers. a switching damper to be cut off, and the first
Rotatable between the suction chamber and the concentrated cotton collection connection chamber, and pivotally supported so as to interlock with the switching operation of the switching damper and disconnect communication between the two chambers in a reverse relationship to the opening/closing operation of the switching damper. a flat screen stretched horizontally along the tangential direction of the lower end of the J-shaped partition plate at the downward inlet of the lower end of the first intake chamber; and a flat screen installed inside the second intake chamber. and an air suction generating means for individual cotton collection that applies suction force to the first air suction duct through the screen. Function During normal operation, the opening/closing damper is closed and the switching damper is opened to perform individual cotton collection, and at a predetermined time, the opening/closing damper is opened and the switching damper is closed to continue collecting cotton from the machine and screen it. The collected fibers on the top can be collected into a central collection device. Embodiments Hereinafter, embodiments of the present invention will be described with reference to FIGS. 1 to 4. In the drawing, 21 is the main body of the individual cotton collection device a, which has a flat partition plate 2 inside the housing 22.
3 and 24 are erected to form an intake chamber 24, a vacant chamber 25, and an exhaust chamber 26. 27 is the housing 22
This J-shaped partition plate is installed as a bridge between the side wall 22a and the partition plate 23 at approximately the center of the intake chamber 24.
A first intake chamber 28 and a concentrated cotton collection connection chamber 29 are formed on both sides by the partition plate 27, and both chambers 28, 29 are formed.
A second intake chamber 30 with an open top surface is formed between the two. 31 is a rectifying plate fixed to the upper corner of the intake chamber 24, and 32 is a first intake duct in which a number of intake nozzles opening at the lower part of the drafting part of each weight arranged in parallel on the machine base are branched and connected. , this intake duct 32 has a connection opening at the lower end of the first intake chamber 28 of the main body 21 . Reference numeral 33 denotes a switching damper rotatably supported on the main body 21 via a pivot 34 at a position above the upper surface opening 30a of the second intake chamber 30 of the main body 21. Communication between the two intake chambers 30 is cut off. The tip edge 33a of the switching damper 33 can abut against the bent portion 27a of the upper opening of the J-shaped partition plate 27 and the rear wall 27b, and both ends 34a, 3 of the pivot shaft 37
4b penetrates and protrudes into the cylinder housing chamber 36 and the empty space 25 via the partition plates 35, 23. 37
The pivot 38 is aligned with the bottom wall 22d of the housing 22.
This opening/closing damper 37 is pivotally supported to the housing 22 so as to be openable/closable via the opening/closing damper 37. The opening/closing damper 37 rotates in conjunction with the switching operation of the switching damper 33, and is connected to the first intake chamber 28 for concentrated cotton collection. This is to cut off communication with the chamber 29. The opening/closing damper 37 is slightly curved, and has a tip edge 37a that can abut against the rear wall 22b of the housing 22 and the arc-shaped lower bottom wall 27c of the J-shaped partition plate 27. A shaft end 38a of the pivot 38 extends through the partition plate 23 into the cavity 25. Numerals 39, 40, and 41 are regulating plates for regulating the rotation angles of the switching damper 33 and the opening/closing damper 37, which are located on the top wall 2 of the housing 22.
2c and the bottom wall 22d, respectively. An operating cylinder 42 is installed in the cylinder housing chamber 36 of the main body 21, and the rod 4 of this operating cylinder 42
3 to the shaft end 3 of the pivot 34 of the switching damper 33.
4a via an arm 44 so as to be rotatable. In addition, the shaft ends 34b of the pivots 34 and 38 protrude into the empty chambers 25 of the switching damper 33 and the opening/closing damper 37,
Arms 45 and 46 are attached and fixed to 38a, respectively, and these arms 45 and 46 are connected via a transmission means such as a gear mechanism, a link mechanism, or a chain mechanism disposed in the empty chamber 25 to perform the above-mentioned operation. The dampers 33 and 37 are configured to be interlocked by the operation of the cylinder 42. 47 is the chamber 2 in the first intake chamber 28 of the main body 21.
This screen 47 is horizontally arranged so as to cross the front wall 22 of the housing 22.
e and the lower bottom wall 27c of the J-shaped partition plate 27. 48 is the partition plate 23 of the main body 21,
An intake air generating means, such as an intake fan, is fixed through the intake fan 24, and the motor section 48a of the intake fan 48 is arranged to protrude into the second intake chamber 30, and the fan section 48b is held within the exhaust chamber 26. FIG. 5 is a plan view showing an example of the overall arrangement of the concentrating cotton collection device. In the drawing, A ₁ to A ₈ indicate each spinning machine, and an example is shown in which eight machines are arranged. The individual cotton collection device a and the first intake duct 32 are installed in each machine _A1 to _A8 , and
A second air intake duct 49 is arranged substantially along the arrangement direction of the machine stands A ₁ to _{A 8} , and each of the individual cotton collection devices a is branched and connected to this second air intake duct 49 . Further, the base end of the second intake duct 49 is connected to a concentrated cotton collection device 50 consisting of a limit load fan 50a, a rotary filter 50b, a turbo fan 50c, and an autocollector 50d. The individual cotton collection devices a are controlled by the control device for each of the machines A ₁ to _{A 8} , and the cotton collection is performed sequentially for each of the machines A ₁ to _{A 8} .
The concentrated cotton collecting device 50 used has a capacity that has enough suction generation capacity to collect the cotton for one spinning machine. Next, the operation of the apparatus of the present invention will be explained as follows. The individual cotton collecting device a and the concentrated cotton collecting device 50
is driven continuously during the operation of the spinning machine. Then, actuate the actuating cylinder 42 of each individual cotton collecting device a to move the switching damper 33 counterclockwise about the pivot 34 until the tip edge 36a abuts against the rear lower part 27b of the J-shaped partition plate 27. Rotate the upper surface opening 30a of the second intake chamber 30 as shown in FIG.
The first intake chamber 28 is opened for communication. Then, in conjunction with the switching operation of the switching damper 33, the opening/closing damper 37 rotates counterclockwise about the pivot 38 until the tip edge 37b collides with the lower bottom wall 27c of the J-shaped partition plate 27. Communication between the first suction chamber 28 and the concentrated cotton collection connection chamber 29 is cut off. In this state, when the suction force is applied to the first suction duct 32 through the first suction chamber 28 by driving the suction fan 48, the fiber cotton is suctioned from suction nozzles installed for each spindle arranged in parallel on the machine base. It is sucked together with air. The suction air in this intake duct 32 is transferred to the first intake chamber 2 of the main body 21.
8 into the second suction chamber 30, and during this suction process, fiber cotton mixed with the air accumulates and adheres to the screen 47. When the suction pressure decreases to a predetermined value due to the adhesion of this fiber cotton, for example, first the machine A ₁
The operating cylinder 42 of the individual cotton collection device a operates,
The switching damper 33 rotates clockwise about the fulcrum of the pivot shaft 37 until its tip edge 33a abuts the upper bent portion 27a of the J-shaped partition plate 27. In conjunction with the rotation of the switching damper 33, the opening/closing damper 37 rotates clockwise about the pivot 38 until its tip edge 37a abuts against the rear wall 22b of the housing 22. Due to the rotational movement of the switching damper 33 and the opening/closing damper 37, the first intake chamber 28 of the individual cotton collection device a of the machine stand _A1 is cut off from communicating with the second intake chamber 30, as shown in FIG. A communication opening is established with the concentrated cotton collection connection chamber 29. Then, since the concentrated cotton collecting device 50 is continuously driven, the suction force of the concentrated cotton collecting device 50 is transferred to the first cotton collecting device 50 through the second air intake duct 49 and the individual cotton collecting device a of the machine stand _A1 . It acts on the intake duct 32 of. Therefore, the suction air in the first suction duct 32 passes through the first suction chamber 28 and enters the concentrated cotton collecting device 50, and then is sucked into the concentrated cotton collecting device 50. During this suction process, the fibrous cotton adhering to the screen 47 of the first suction chamber 28 is blown away by the air pressure of the suction air and the screen 47 is cleaned, and at the same time, the blown fibrous cotton is The cotton fibers sucked from the first intake duct 32 are sent to the concentrated cotton collection device 50 via the second intake duct 49.
is attracted to. In this way, the fiber cotton adhering to the screen 47 of the individual cotton collection device a of the machine A ₁ is blown away and cleaned, and when a predetermined set time has elapsed, the actuation cylinder 42 is activated and the switching damper 33
The opening/closing damper 37 is rotatably held at the position shown by the solid line in FIG. Then, the suction air in the first intake duct 32 flows through the first intake chamber 28 to the second intake chamber 30.
During this suction process, the fibers mixed in the suction air adhere to the screen 47 as described above.
Repeat the same action below. In this way, when the fiber cotton that has been individually collected by the individual cotton collecting device a of the machine A ₁ is collected in a concentrated manner by the concentrated cotton collecting device 50, the fiber cotton is then collected individually by the individual cotton collecting device a of the machine A ₁ , and then the fiber cotton is collected individually by the individual cotton collecting device a of the machine _{A 1} . The fiber cotton individually collected by cotton device a is
The cotton is sequentially collected in a concentrated manner by the concentrated cotton collecting device 50 in the same manner as described above. The order of intensive collection of fiber cotton is as follows:
It is not limited to the above. According to the apparatus of the present invention, continuous suction is possible using the suction fan 48 of the individual cotton collection device a and the concentrated cotton collection device 50, and continuous suction is possible by appropriately switching the switching damper 33 and the opening/closing damper 37. Therefore, it is possible to set the desired suction pressure _P3 to a much lower setting value than that of the conventional device, as shown by the polygonal line b in the diagram showing the change in suction pressure in FIG. As a result, a small screen 47 and intake fan 48 can be used, making it possible to downsize the entire device and save energy. In the above embodiment, the switching damper 33 and the opening/closing damper 37 are switched according to the change in the suction pressure caused by the intake fan 48, but the present invention is not limited to this, and each of the above-mentioned operations is performed using a timer or the like. The dampers 33 and 37 may be switched. FIG. 6 shows a second embodiment of the device of the present invention. Components that are the same as those shown in FIGS. 1 to 5 are designated by the same reference numerals, and description thereof will be omitted. In this embodiment, the opening/closing damper 51 of the individual cotton collection device a
is rotatably supported on the main body 21 via a pivot 52 along the low wall 27c of the J-shaped partition plate 27, and the second
The intake duct 49 is connected and opened. Effects of the Invention The present invention provides a first air intake duct in which a large number of air intake nozzles installed in each drafting section of each weight arranged in parallel on the machine base are branched and connected, and a first air intake duct that is connected to a first air intake duct in a substantially central part inside a sealed casing. A J-shaped partition plate is provided to partition a first intake chamber and a concentrated cotton collection connection chamber on both sides, and a second intake chamber with an open top is formed within the J-shaped partition plate. a main body of an individual cotton collection device having a connection opening at the lower end of the suction chamber with the suction duct substantially perpendicular to the first suction chamber; a second suction duct connecting the concentrated cotton collection connection chamber and the concentration cotton collection device; , is rotatably supported above the upper surface opening of the second intake chamber, and
and a switching damper that disconnects communication between the second intake chamber and the first intake chamber and the concentrated cotton collection connection chamber, the switching damper being rotatable in conjunction with the switching operation of the switching damper. An opening/closing damper is pivotally supported to cut off communication between the two chambers in an inverse relationship to the opening/closing operation, and the opening/closing damper is installed horizontally along the tangential direction of the lower end of the J-shaped partition plate at the downward inlet at the lower end of the first intake chamber. and a suction air generating means for individual cotton collection, which is disposed inside the second suction chamber and applies a suction force to the first suction duct through the screen. Intake route during individual cotton collection,
The air intake path during concentrated cotton collection is completely separated by the J-shaped partition plate, and the air intake effect on the screen is improved. Further, in the present invention, since a flat screen is horizontally stretched along the tangential direction of the lower end of the J-shaped partition plate at the downward entrance of the lower end of the first intake chamber, the cotton is collected on the screen by an individual cotton collecting device. When the collected fibers are collected using a central collection device, a flat plate is suctioned and peeled off from the screen by the ventilation action of the intake air, and
The screen can be peeled off from the bottom surface of the screen using its own weight, making it easy to clean the screen and simplifying the device. Furthermore, even if the switching damper is closed and the opening/closing damper is opened to switch from individual cotton collection to concentrated cotton collection, the centralized cotton collection device can perform the cotton collection of the machine that is in charge of the individual cotton collection device. In addition, since the suction generation means of the individual cotton collectors that collect cotton with this centralized cotton collector can be left in continuous operation, the intake air of each machine can be continuously operated. It is possible to omit the means for ON/OFF control of the generation means, and the equipment cost can be reduced. As described above, according to the present invention, since continuous suction is possible using the suction air generation means and the concentrated cotton collection device, the drafting portion of each spindle of the spinning machine in operation can be constantly cleaned.
Yarn quality does not deteriorate. In addition, since the initial suction pressure can be set to a low setting value, it is possible to use a small screen and suction generation means, which makes it possible to downsize the entire device, save energy, and significantly reduce costs. Become cheap. Moreover, the structure is simple, and the amount of collected fiber cotton can be greatly increased.

[Brief explanation of drawings]

FIG. 1 is a side sectional view showing an embodiment of the device of the present invention;
FIG. 2 is a side sectional view showing the operating state of the device of the present invention;
3 is a sectional view taken along the line A-A in FIG. 2, FIG. 4 is a schematic perspective view of the device of the present invention, FIG. 5 is a plan view showing an example of the arrangement of the device of the present invention, and FIG. 6 is the device of the present invention. FIG. 3 is a side sectional view showing another embodiment of the invention. FIG. 7 is a vertical cross-sectional view of a conventional screen-fixing type device, FIG. 8 is a vertical cross-sectional view of a screen-rotating conventional device, and FIG. 9 is a diagram showing the relationship between suction pressure and time. 21... Main body, 22... Housing, 27... J-shaped partition plate, 28... First intake chamber, 29... Concentrated cotton collection connection chamber, 30... Second intake chamber, 32... Third 1 intake duct, 33... switching damper, 37... opening/closing damper, 47... screen, 48... intake air generation means, 49... second intake duct, 50... concentrated cotton collecting device.

Claims (1)

[Claims] 1. A first intake duct in which a large number of intake nozzles installed in each drafting section of each spindle arranged in parallel on the machine base are branched and connected, and a J-shaped partition plate is arranged approximately in the center inside the sealed casing. A first suction chamber and a concentrated cotton collection connection chamber are formed on both sides, and a second suction chamber with an open top is formed in the J-shaped partition plate. A main body of the individual cotton collecting device in which the air intake duct is connected to the first air intake chamber so as to be substantially orthogonal thereto, a second air intake duct that connects the concentrated cotton collection connection chamber and the concentrated cotton collection device, and the second air intake chamber. a switching damper rotatably supported above the top opening and configured to disconnect communication between the first and second intake chambers;
Rotatable between the suction chamber and the concentrated cotton collection connection chamber, and pivotally supported so as to interlock with the switching operation of the switching damper and cut off communication between the two chambers in a reverse relationship to the opening/closing operation of the switching damper. a flat screen stretched horizontally along the tangential direction of the lower end of the J-shaped partition plate at the downward inlet of the lower end of the first intake chamber; and a flat screen installed inside the second intake chamber. What is claimed is: 1. A cotton collecting device for a spinning machine, characterized in that the cotton collecting device is equipped with suction air generating means for individual cotton collection, which applies a suction force to the first suction duct through a screen.