JP2011038210A - Open-end spinning device and spinning machine with the open-end spinning device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an open-end spinning device configured to secure a sufficient space for carrying out the maintenance, and efficiently remove fiber waste or the like blocking a nozzle. <P>SOLUTION: The spinning device 9 includes a first nozzle 71, a first block 91, a second nozzle 81, and a second block 92. The first block 91 supports the first nozzle 71. The second nozzle 81 is arranged on the downstream side of the first nozzle 71 in the fiber traveling direction. The second block 92 supports the second nozzle 81, and can expose the second nozzle 81 to the exterior by being moved in a direction separated from the first block 91. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to an air spinning device, and more particularly to an air spinning device that performs air spinning using a plurality of nozzles arranged along a fiber traveling direction.

  Conventionally, an air spinning device in which a first nozzle and a second nozzle are arranged in series along a fiber traveling direction is known. Patent Literature 1 and Patent Literature 2 disclose this type of pneumatic spinning device.

JP 2006-161171 A Japanese Patent Laid-Open No. 5-86510

  In the pneumatic spinning apparatus as described above, fiber scraps such as a lump of fibers are clogged at the tip of the nozzle, and normal spinning may not be possible. In this case, it is necessary to remove the fiber waste, but the first nozzle is disposed in the vicinity of the draft roller in order to efficiently suck the fiber bundle sent from the draft roller. The space that can be reserved for the removal operation is limited. Therefore, the work of removing small lumps such as fiber scraps in a narrow space is very time-consuming and there is room for improvement from the viewpoint of improving maintainability.

  The same problem as described above can also be pointed out for the second nozzle. In particular, the second nozzle is disposed in the vicinity of the first nozzle in order to introduce the fiber bundle conveyed from the first nozzle into the inside. For this reason, the tip of the second nozzle is hidden by the first nozzle and the support member that supports the first nozzle, and it is very difficult to remove the fiber waste clogged at the tip of the second nozzle. In addition, the suction action by the swirling flow generated inside the tip of the first nozzle and the second nozzle acts, making it more difficult to remove the fiber waste.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a pneumatic spinning device that can secure a sufficient space for maintenance and can efficiently remove fiber scraps clogged in a nozzle. Is to provide.

Means and effects for solving the problems

  The problems to be solved by the present invention are as described above. Next, means for solving the problems and the effects thereof will be described.

  According to a first aspect of the present invention, an air spinning device configured as follows is provided. That is, the pneumatic spinning device includes a first nozzle, a first support member, a second nozzle, and a second support member. The first support member supports the first nozzle. The second nozzle is disposed downstream of the first nozzle in the fiber traveling direction. The second support member supports the second nozzle and moves in a direction away from the first support member, thereby exposing the second nozzle to the outside.

  Thereby, since the 2nd support member which supports the 2nd nozzle moves away from the 1st support member, sufficient space for performing maintenance of the 2nd nozzle can be secured easily. Accordingly, it is possible to efficiently remove fiber scraps that cause nozzle clogging.

  In the pneumatic spinning device, it is preferable that a path until the fiber that has passed through the first nozzle reaches the second nozzle is configured to be separated from the outside during spinning.

  Thereby, suction efficiency improves and the amount of fluff deposited on the 2nd nozzle etc. can be reduced effectively.

  In the pneumatic spinning device, it is preferable that the fiber travel path in the second nozzle at the time of spinning is arranged to be inclined with respect to the fiber travel path in the first nozzle.

  Thereby, it becomes possible to flexibly cope with the structure of the apparatus for attaching the pneumatic spinning apparatus.

  In the pneumatic spinning device, it is preferable that the first support member is configured to be movable in a direction away from a draft roller disposed upstream of the first nozzle in the fiber traveling direction.

  Thereby, sufficient space for performing maintenance of the first nozzle can be secured, and the maintenance efficiency of the pneumatic spinning device can be further improved.

  The pneumatic spinning device is preferably configured as follows. That is, the pneumatic spinning device includes a regulating member that regulates the movement of the first support member at a predetermined position in which the first support member is moved in a direction away from the draft roller. The first support member is connected to the second support member via a mechanical element. When the second support member moves away from the draft roller, the first support member moves integrally with the second support member until the movement of the second support member is restricted by the restriction member.

  Accordingly, the first support member can be separated from the draft roller and the second support member can be separated from the first support member simply by moving the second support member.

  The pneumatic spinning device preferably includes a first nozzle cleaning device configured to be capable of injecting compressed air to the first nozzle.

  Thereby, the fiber waste etc. which become the cause of clogging can be blown off by the compressed air which is jetted by the first nozzle cleaning device.

  The pneumatic spinning device is preferably configured as follows. In other words, a first nozzle air ejection portion for generating a swirl flow is formed in the first nozzle. An electromagnetic valve is disposed in a supply path for supplying compressed air to the first nozzle air ejection portion. During the operation of the first nozzle cleaning device, the solenoid valve is controlled to stop the supply of compressed air.

  Thereby, it is possible to perform spinning while generating a swirling flow in the first nozzle during spinning. On the other hand, at the time of cleaning, by stopping the supply of compressed air to the first nozzle, it is possible to effectively remove fiber waste and the like by the cleaning device without being affected by the swirling flow.

  The pneumatic spinning device preferably includes a second nozzle cleaning device configured to be capable of injecting compressed air to the second nozzle.

  Thus, with the second nozzle exposed, the compressed air is sprayed by the second nozzle cleaning device, so that fiber waste that causes nozzle clogging is blown out from the second nozzle to the outside efficiently. Can be removed.

  The pneumatic spinning device is preferably configured as follows. A second nozzle air ejection portion for generating a swirling flow is formed in the second nozzle. An electromagnetic valve is disposed in a supply path for supplying compressed air to the second nozzle air ejection portion. During the operation of the second nozzle cleaning device, the electromagnetic valve is controlled to stop the supply of compressed air.

  Thereby, it is possible to perform spinning while generating a swirling flow in the second nozzle during spinning. On the other hand, at the time of cleaning, by stopping the supply of compressed air to the second nozzle, it is possible to effectively remove fiber waste and the like by the second nozzle cleaning device without being affected by the swirling flow. .

  According to a second aspect of the present invention, a spinning machine including the pneumatic spinning device is provided.

1 is a front view showing an overall configuration of a spinning machine according to an embodiment of the present invention. The side view which shows the mode of a draft apparatus and a spinning apparatus. The expanded side view which shows the structure of a spinning apparatus. The block diagram which shows typically a part of electrical structure of a spinning apparatus. The expanded side view which shows the mode of a spinning apparatus when a 1st block spaces apart from a front roller and a front bottom roller. The expanded side view which shows the mode of the spinning apparatus when a 2nd block spaces apart from the 1st block.

  Next, an embodiment of the invention will be described. FIG. 1 shows a spinning machine 1 as a textile machine having a large number of spinning units (yarn processing units) 2 arranged side by side.

  As shown in FIG. 1, each spinning unit 2 includes a draft device 7, a spinning device 9, a yarn storage device 11, and a winding device 12 as main components.

  The draft device 7 is provided in the vicinity of the upper end of the frame 6 of the spinning machine 1 and is configured to stretch the sliver 13 into a fiber bundle 8. The spinning device 9 spins the fiber bundle 8 sent from the draft device 7. The spun yarn 10 generated by the spinning device 9 is sent to the yarn accumulating device 11 after passing through a clearer 52 for detecting a yarn defect. After passing through the yarn storage device 11, the spun yarn 10 is wound up by the winding device 12 to form a package 45.

  The spinning machine 1 includes a blower box 101 and a prime mover box 102. The spinning machine 1 includes a yarn splicing cart 3 configured to be able to travel in the direction in which the spinning units 2 are arranged. As shown in FIG. 1, the yarn splicing cart 3 of this embodiment includes a splicer (yarn splicing device) 43, a suction pipe 44, and a suction mouth 46. When yarn breakage or yarn breakage occurs in a spinning unit 2, the yarn splicing carriage 3 travels on the rail 47 fixed to the frame 6 to the spinning unit 2 and stops at that position. The yarn splicing carriage 3 captures the yarn end on the spinning device 9 side with the suction pipe 44 and also captures the yarn end on the winding device 12 side with the suction mouth 46, and rotates the suction pipe 44 and the suction mouth 46, respectively. By doing so, the captured yarn end on the spinning device 9 side and the yarn end on the winding device 12 side are guided to the splicer 43. The yarn end on the spinning device 9 side guided by the splicer 43 and the yarn end on the winding device 12 side are spliced by the splicer 43. As a result, the yarn end on the spinning device 9 side and the yarn end on the winding device 12 side are connected, and the winding operation can be resumed.

  The spinning machine 1 is provided with a doffing cart (not shown in the drawings) for doffing a full package, and the doffing cart is configured to be able to run independently of the yarn joining cart. ing.

  FIG. 2 is an enlarged side view of the draft device 7, the spinning device 9, and the yarn storage device 11. As shown in FIG. 2, the draft device 7 includes a plurality of draft rollers for drawing the sliver 13 into the fiber bundle 8. The draft roller is composed of a top roller and a bottom roller that are arranged to face each other.

  The top roller is composed of four draft rollers: a back roller 14, a third roller 15, a middle roller 16 on which a top apron belt 17 is mounted, and a front roller 18. On the other hand, the bottom roller is composed of four draft rollers: a back bottom roller 24, a third bottom roller 25, a middle bottom roller (apron belt roller) 26 on which a bottom apron belt 27 is mounted, and a front bottom roller 28. . Each of the bottom rollers 24, 25, 26, and 28 is disposed to face the top rollers 14, 15, 16, and 18.

  Further, a suction collector 60 is disposed below the draft device 7 of the present embodiment. The suction collector 60 is formed in a cup shape with the top opened, and a suction port is formed at the open end. The suction port of the suction collector 60 faces the lower outer peripheral surface of the front bottom roller 28. The suction collector 60 is connected to a negative pressure source (not shown) and configured to generate a suction flow in the vicinity of the suction port. Further, a pad body (not shown) is pressed against the front bottom roller 28, and the fiber waste adhering to the rotationally driven front bottom roller 28 is scraped off by the pad body. A part of the scraped fiber is sucked and removed by the suction collector 60.

  With the above configuration, the sliver 13 sent to the draft device 7 is drawn by the draft roller to become a fiber bundle 8 and sent to the spinning device (pneumatic spinning device) 9. The spinning device 9 performs air spinning on the fiber bundle 8 sent from the draft device 7. The air-spun fiber bundle 8 becomes a spun yarn 10 and is sent to the yarn storage device 11. The details of the spinning device 9 will be described later.

  The yarn storage device 11 has a function of giving a predetermined tension to the spun yarn 10 and pulling it out from the spun device 9, and the spun yarn 10 sent from the spun device 9 is retained at the time of yarn splicing by the yarn splicing carriage 3, for example. It has a function of preventing slack, and a function of adjusting the tension so that fluctuations in tension on the winding device 12 side are not transmitted to the spinning device 9 side. As shown in FIG. 2, the yarn storage device 11 includes a yarn storage roller 21, a yarn hooking member 22, and an electric motor 23 as main components.

  The yarn hooking member 22 is configured to be able to engage (hang) with the spun yarn 10. The yarn hooking member 22 is supported so as to be relatively rotatable with respect to the yarn accumulating roller 21, and torque that resists the relative rotation of the yarn hooking member 22 with respect to the yarn accumulating roller 21 by appropriate biasing means. Is configured to occur. With this resistance torque, the yarn hooking member 22 rotates following the rotation of the yarn accumulating roller 21, and as a result, both can be rotated together. On the other hand, when a force that overcomes this resistance torque is applied to the yarn hooking member 22, the yarn hooking member 22 can rotate relative to the yarn accumulating roller 21.

  The yarn storage roller 21 is configured so that the spun yarn 10 can be wound around and stored on the outer peripheral surface thereof. The yarn accumulating roller 21 is rotationally driven by an electric motor 23. With the above configuration, when the yarn hooking member 22 with the yarn engaged is rotated integrally with the yarn accumulating roller 21, the spun yarn 10 is swung by the yarn accumulating member 22 and guided to the outer peripheral surface of the yarn accumulating roller 21. It is wrapped around. The spun yarn 10 wound around the yarn accumulating roller 21 is sent to the distal end side of the yarn accumulating roller 21 by the new spun yarn 10 that is sequentially wound around the proximal end side of the yarn accumulating roller 21. Then, the spun yarn 10 is pulled out from the front end side of the yarn accumulating roller 21, passes through the yarn hooking member 22, and then sent to the winding device 12.

  Next, the tension adjustment function of the yarn storage device 11 will be described. When a force for pulling the spun yarn 10 engaged with the yarn hooking member 22 downstream is applied in a state where the spun yarn 10 is wound around the yarn accumulating roller 21, the spun yarn 10 is pulled from the tip side of the yarn accumulating roller 21. A force for rotating the yarn hooking member 22 so as to be unwound is applied to the yarn hooking member 22. Therefore, if the yarn tension on the downstream side of the yarn accumulating device 11 (the yarn tension between the yarn accumulating device 11 and the winding device 12) is strong enough to overcome the resistance torque, the yarn hooking member 22 becomes independent of the yarn accumulating roller 21. The spun yarn 10 is gradually unwound from the front end side of the yarn accumulating roller 21 via the yarn hooking member 22.

  Conversely, when the yarn tension on the downstream side of the yarn accumulating device 11 is not so strong as to overcome the resistance torque, the yarn hooking member 22 rotates integrally with the yarn accumulating roller 21. In this case, the yarn hooking member 22 functions to prevent the spun yarn 10 from being unwound from the leading end side of the rotating yarn accumulating roller 21.

  In this way, the yarn storage device 11 operates to unwind the yarn when the downstream yarn tension increases and to stop the yarn unwinding when the yarn tension decreases (yarn seems to loosen). Thus, the slack of the yarn can be eliminated and an appropriate tension can be applied.

  Next, the configuration of the spinning device 9 will be described with reference to FIGS. 3 and 4. FIG. 3 is an enlarged side view showing the configuration of the spinning device 9. FIG. 4 is a block diagram schematically showing a part of the electrical configuration of the spinning device 9.

  As shown in FIG. 3, the spinning device 9 according to the present embodiment includes blocks divided into two, that is, a first block 91 and a second block 92. The first block 91 is provided on a side closer to the draft device 7 than the second block 92 (upstream side of the second block 92 when viewed in the traveling direction of the fiber bundle 8). Further, the spinning device 9 of the present embodiment is attached to the frame 6 of the spinning machine 1 in units, and can be attached and detached in units. Below, each part which comprises the spinning apparatus 9 is demonstrated.

  First, the first block 91 will be described. As shown in FIG. 3, the first block 91 is configured in an arm shape and functions as a housing that supports a first nozzle 71 described later. The first block 91 is attached to the frame 6 so as to be rotatable about a rotation shaft 99.

  A first shower nozzle 72 and a first nozzle 71 are disposed at the tip of the first block 91. As shown in FIG. 3, during spinning, the position of the first block 91 is fixed so that the tip of the first nozzle 71 faces the nip point of the front roller 18 and the front bottom roller 28. A stopper 41 is disposed above the first block 91, and the first block 91 is positioned by the stopper 41 hitting the first block 91 during spinning.

  A stopper (regulating member) 42 that restricts rotation in the direction away from the draft device 7 is disposed below the first block 91. This stopper 42 does not contact the first block 91 during spinning as shown in FIG. On the other hand, when the first block 91 is rotated by a predetermined angle from the spinning position, the stopper 42 comes into contact with the first block 91 to prevent further rotation.

  As described above, the first block 91 is sandwiched between the stopper 41 disposed above the first block 91 and the stopper 42 disposed below. A rotation stroke of the first block 91 is defined. Note that the position of the stopper 42 of this embodiment is set so as to avoid the second block 92 so as to contact only the first block 91.

  The first nozzle 71 is for causing a swirl flow to act on the fiber bundle 8 while inserting the fiber bundle 8 sent from the draft device 7. The first nozzle 71 is formed with a first nozzle fiber passage path (fiber travel path in the first nozzle) 75 for allowing the fiber bundle 8 to pass therethrough. A plurality of first nozzle air ejection holes (first nozzle air ejection portions) 30 whose outlet ends are opened in the first nozzle fiber passage path 75 are formed inside the first nozzle 71. . These first nozzle air ejection holes 30 are formed of elongated holes formed around the first nozzle fiber passage path 75, and the holes are formed in the tangential direction of the first nozzle fiber passage path 75, and the longitudinal direction thereof. The direction is slightly inclined to the downstream side of the yarn feed.

  Further, at the time of spinning, a fiber passage chamber 61 is formed in the first block 91 as a transition portion through which the fibers sucked from the first nozzle 71 to the second nozzle 81 pass. As shown in FIG. 3, the fiber passage chamber 61 at the time of spinning is shaped so as to be covered with the second nozzle 81, and is closed from the outside (the crossing portion is sealed). .

  The first block 91 has a first in-block suction path 62 communicating with the fiber passage chamber 61. As shown in FIG. 3, the first in-block suction path 62 is connected to a negative pressure source (not shown) via a flexible tube 63 and a pipe (not shown in the drawing) connected to the first block 91. As a result, the compressed air flow injected from the first nozzle 71 is exhausted, and the fiber waste accumulated in the fiber passage chamber 61 can be sucked and removed. This first block suction path 62 branches to the suction collector 60 described above, and also serves as a path for applying a suction force to the suction collector 60. The fiber waste sucked from the fiber passage chamber 61 and the fiber waste sucked by the suction collector 60 are collected in a cotton box (not shown) through the tube 63 and the pipe.

  As shown in FIG. 4, the first nozzle 71 is connected to a spinning nozzle pressure source 94 via a solenoid valve 95 or the like. The first nozzle 71 injects the compressed air supplied from the spinning nozzle pressure air source 94 into the first nozzle fiber passage path 75 from the first nozzle air ejection hole 30, so that the inside of the first nozzle fiber passage path 75. It is possible to generate a swirl flow.

  The first shower nozzle 72 (first nozzle cleaning device) is for removing fiber debris, dust and the like adhering to the tip of the first nozzle 71. As shown in FIG. 3, the first shower nozzle 72 is fixed to the front end of the first block 91, and the direction of the injection port is set so that compressed air can be injected to the front end of the first nozzle 71. Yes.

  As shown in FIG. 4, the first shower nozzle 72 is connected to a cleaning pressure source 96 via a solenoid valve 97 or the like. The first shower nozzle 72 blows away fiber waste or dust adhering to the tip of the first nozzle 71 by injecting the compressed air supplied from the pressure source for cleaning 96 to the tip of the first nozzle 71. It is possible.

  Next, the second block 92 will be described. The second block 92 is configured in an arm shape as shown in FIG. 3 and functions as a housing that supports a second nozzle 81 described later. The second block 92 is attached to the frame 6 via a rotation shaft 99 so that the rotation center thereof coincides with the rotation center of the first block 91. The second nozzle 81 and the second shower nozzle 82 are disposed at the tip of the second block 92.

  As described above, the first block 91 is formed with the fiber passage chamber 61 as an accommodation space capable of accommodating a part of the second block 92, and the second block 92 includes the second nozzle 81. Spinning is performed in a state where the part is accommodated in the first block 91. Accordingly, the second nozzle 81 is hidden inside the first block 91 during spinning.

  As shown in FIG. 4, a pneumatic cylinder 80 (not shown in FIG. 3) is connected to the second block 92, and the second block 92 can be moved from the spinning position by driving the pneumatic cylinder 80. It has become.

  The second block 92 is connected to the first block 91 through a mechanical element. In the present embodiment, the first block 91 and the second block 92 are made to coincide with each other, and the first block is provided via an urging means such as a torsion spring (corresponding to the mechanical element described above, omitted in the drawings). 91 and the second block 92 are connected. Since the first block 91 is connected to the second block 92 in this way, it is possible to move the first block 91 together with the second block 92 by operating the pneumatic cylinder 80 described above. ing.

  The second nozzle 81 is for causing a swirling flow to act on the fiber bundle 8 that has passed through the first nozzle fiber passage path 75. As shown in FIG. 3, the second nozzle 81 of the present embodiment is arranged so that the yarn path is inclined with respect to the first nozzle 71.

  Similar to the first nozzle 71, the second nozzle 81 is provided with a second nozzle fiber passage path (fiber travel path in the second nozzle) 85 for allowing the fiber bundle 8 to pass therethrough. The second nozzle fiber passage path 85 has a longitudinal direction inclined with respect to the longitudinal direction of the first nozzle fiber passage path 75 during spinning. Accordingly, the fiber bundle 8 supplied to the spinning device 9 advances while bending in the spinning device 9.

  In the second nozzle 81, a plurality of second nozzle air ejection holes (second nozzle air ejection portions) 31 whose outlet ends are opened in the second nozzle fiber passage 85 are formed. These second nozzle air ejection holes 31 are elongated holes formed around the second nozzle fiber passage 85. The direction of the opening of the second nozzle air ejection hole 31 is set so as to generate a swirling flow whose direction is opposite to that of the swirling flow generated in the first nozzle fiber passage path 75 of the first nozzle 71. ing.

  Similarly to the first nozzle 71, the second nozzle 81 is connected to the spinning nozzle pressure source 94 via a solenoid valve 95 or the like (see FIG. 4). The swirl flow generated in the first nozzle fiber passage path 75 in the second nozzle fiber passage path 85 by injecting the compressed air supplied from the spinning nozzle pressure source 94 to the second nozzle fiber passage path 85. It is possible to generate a swirling flow in the opposite direction. That is, the direction of ballooning of the fiber bundle 8 generated in the first nozzle fiber passage path 75 of the first nozzle 71 and the direction of ballooning of the fiber bundle 8 generated in the second nozzle fiber passage path 85 are reversed. can do.

  The second shower nozzle 82 (second nozzle cleaning device) is for removing fiber waste, dust, and the like attached to the tip of the second nozzle 81. The direction of the injection port of the second shower nozzle 82 is set so that compressed air can be injected to the tip of the second nozzle 81. As shown in FIG. 4, the second shower nozzle 82 is connected to the cleaning pressure air source 96 via the solenoid valve 97 and the like, like the first shower nozzle 72.

  Further, the spinning machine 1 according to this embodiment includes a unit controller 32 for controlling the spinning unit 2 for each spinning unit 2. As shown in FIG. 4, the unit controller 32 is electrically connected to a solenoid valve 95 and a solenoid valve 97, and can open and close these valves. The unit controller 32 is also electrically connected to an unillustrated electromagnetic valve for expanding and contracting the pneumatic cylinder 80, and can open and close the electromagnetic valve.

  The solenoid valve 95 is configured to close the path when receiving an operation signal from the unit controller 32 (when energized). The solenoid valve 95 opens its path so that compressed air is supplied to the first nozzle air ejection hole 30 and the second nozzle air ejection hole 31 during normal operation (when power is not supplied). On the other hand, the solenoid valve 97 is configured to open the path when receiving an operation signal from the unit controller 32 (when energized), and closes the path during normal time (when not energized). The configuration of the solenoid valve 95 and the solenoid valve 97 can be appropriately changed according to circumstances, and the configuration of this embodiment can be used as long as the opening and closing of the path can be controlled by the unit controller 32. It is not limited.

  With this configuration, the spinning device 9 spins the fiber bundle 8 sent from the draft device 7. More specifically, a suction flow is generated in the vicinity of the inlet of the first nozzle fiber passage path 75 due to the swirling flow in the first nozzle 71, and the fiber bundle 8 is caused to move in the first nozzle fiber passage path 75 by this suction action. Sucked into. The fiber bundle 8 sucked into the first nozzle fiber passage path 75 is introduced into the second nozzle fiber passage path 85 on the downstream side, and is false twisted by the swirl flow generated in the second nozzle fiber passage path 85. This false twist propagates to the fiber converging point after passing through the nip point between the front roller 18 and the front bottom roller 28.

  At the same time, a part of the fibers separated when passing through the front roller 18 and the front bottom roller 28 to the fiber bundle 8 to which the twist is applied is caused by the swirling flow in the first nozzle fiber passage path 75. The fiber bundle 8 is wound in the direction opposite to the twisting direction. In this way, the direction of the swirling flow generated by the second nozzle 81 is reversed to the direction of the swirling flow generated by the first nozzle 71, so that the first nozzle 71 winds in the direction opposite to the twisting direction of the fiber bundle 8. The wound fibers are wound around the fiber bundle 8 while strongly tightening the fiber bundle 8 by the action of the second nozzle. As a result, a bundle spun yarn 10 having high yarn strength with the fiber bundle 8 as a core yarn is formed. The spun yarn 10 spun from the fiber bundle 8 in this way passes through the yarn accumulating device 11 and is sent to the winding device 12 side.

  Next, the opening operation of the first block 91 and the second block 92 included in the spinning device 9 and the automatic cleaning by the first shower nozzle 72 and the second shower nozzle 82 will be described with reference to FIGS. FIG. 5 is an enlarged side view showing a state of the spinning device 9 when the first block 91 is separated from the front roller 18 and the front bottom roller 28. FIG. 6 is an enlarged side view showing a state of the spinning device 9 when the second block 92 is separated from the first block 91. In addition, the timing which performs automatic cleaning can be made into an appropriate timing according to the situation. For example, the automatic cleaning may be performed at the timing when the operator operates the operating means (not shown). Moreover, it is good also as a structure which controls each part at an appropriate timing so that the unit controller 32 may perform automatic cleaning regularly.

  When the automatic cleaning is started, the unit controller 32 transmits an operation signal to an electromagnetic valve (not shown) in order to separate the second block 92 from the draft device 7. The electromagnetic valve that has received the operation signal operates the pneumatic cylinder 80 so that the second block 92 rotates downward (in the direction of the arrow in FIG. 5). Further, as described above, since the first block 91 is connected to the second block 92 by a torsion spring (not shown), the first block 91 follows the second block 92 and integrally rotates downward. .

  As shown in FIG. 5, when the lower surface of the first block 91 is rotated to a position where it contacts the stopper 42, further downward rotation of the first block 91 is restricted by the stopper 42. Stops at a position (hereinafter sometimes referred to as an open position). On the other hand, since the second block 92 does not contact the stopper 42 as described above, the second block 92 is rotated downward (in the direction of the arrow in FIG. 6) as it is. As a result, the second block 92 is separated from the first block 91 and the tip of the second nozzle 81 is greatly exposed, resulting in the state shown in FIG.

  Further, when the automatic cleaning control is started, the unit controller 32 transmits an operation signal to the solenoid valve 95 and stops the supply of compressed air to the first nozzle 71 and the second nozzle 81. When the second block 92 has moved to the position shown in FIG. 6, the unit controller 32 transmits an operation signal to the solenoid valve 97 to supply compressed air to the first shower nozzle 72 and the second shower nozzle 82. Thus, compressed air in the direction indicated by the arrow in FIG. 6 is blown from the injection port of the first shower nozzle 72 toward the tip of the first nozzle 71. Similarly, compressed air in the direction indicated by the arrow in FIG. 6 is blown from the injection port of the second shower nozzle 82 toward the tip of the second nozzle 81.

  Fiber scraps or the like adhering to the tip of the first nozzle 71 or the tip of the second nozzle 81 are blown off to the outside of the spinning device 9 by the momentum of air blown from the first shower nozzle 72 or the second shower nozzle 82. Removed. In addition, the spinning device 9 of the present embodiment can omit the cleaning process by the first shower nozzle 72 and the second shower nozzle 82 and perform only the opening / closing operation of the first block 91 and the second block 92. It has become.

  Further, as described above, the spinning device 9 is attached to the frame 6 of the spinning machine 1 in units. The spinning machine 1 according to the present embodiment is configured such that the spinning device 9 and a spinning device having a different structure can be replaced in units. As a spinning device having a structure different from that of the above embodiment, for example, an air spinning device including a nozzle and a spindle can be considered. Accordingly, the frame 6 for attaching the spinning device 9 can be shared. Accordingly, the spinning device 9 used for the spinning machine 1 can be selected according to the purpose and application, and the production efficiency of the spinning machine 1 can be effectively improved.

  As described above, the spinning device 9 provided in the spinning machine 1 of the present embodiment is configured as follows. That is, the spinning device 9 includes a first nozzle 71, a first block 91, a second nozzle 81, and a second block 92. The first block 91 supports the first nozzle 71. The second nozzle 81 is disposed downstream of the first nozzle 71 in the fiber traveling direction. The second block 92 supports the second nozzle 81 and moves in a direction away from the first block 91, so that the second nozzle 81 can be exposed to the outside.

  Thereby, since the 2nd block 92 which supports the 2nd nozzle 81 moves so that it may leave | separate from the 1st block 91, sufficient space for performing the maintenance of the 2nd nozzle 81 can be ensured easily. Accordingly, it is possible to efficiently remove fiber scraps that cause nozzle clogging.

  Further, in the spinning device 9 of the present embodiment, the path until the fiber that has passed through the first nozzle 71 reaches the second nozzle 81 is configured to be separated from the outside during spinning.

  Thereby, suction efficiency improves and the amount of fluff deposited on the 2nd nozzle 81 grade | etc., Can be reduced effectively.

  In the spinning device 9 of the present embodiment, the second nozzle fiber passage path 85 in the second nozzle 81 during spinning is inclined with respect to the first nozzle fiber passage path 75 in the first nozzle 71. Is arranged.

  Thereby, it becomes possible to flexibly cope with the structure of the spinning machine 1 to which the spinning device 9 is attached.

  Further, in the spinning device 9 of the present embodiment, the first block 91 is configured to be movable in a direction away from the front roller 18 and the front bottom roller 28 arranged on the upstream side of the first nozzle 71 in the fiber traveling direction. Is done.

  Thereby, sufficient space for performing maintenance of the first nozzle 71 can be secured, and the maintenance efficiency of the pneumatic spinning device can be further improved.

  Further, the spinning device 9 of the present embodiment is configured as follows. That is, the spinning device 9 includes a stopper 42 that restricts the movement of the first block 91 at a predetermined position where the first block 91 is moved away from the front roller 18 and the front bottom roller 28. The first block 91 is connected to the second block 92 via a mechanical element. When the second block 92 moves away from the front roller 18 and the front bottom roller 28, the first block 91 moves integrally with the second block 92 until the movement is restricted by the stopper 42.

  As a result, the first block 91 can be separated from the front roller 18 and the front bottom roller 28 and the second block 92 can be separated from the first block 91 simply by moving the second block 92.

  Further, the spinning device 9 of the present embodiment includes a first shower nozzle 72 configured to be capable of injecting compressed air to the first nozzle 71.

  Thereby, the fiber waste etc. which cause the clogging of the 1st nozzle 71 by the compressed air injected by the 1st shower nozzle 72 can be blown off and removed.

  Further, the spinning device 9 of the present embodiment is configured as follows. That is, the first nozzle air ejection hole 30 for generating a swirl flow is formed in the first nozzle 71. A solenoid valve 95 is disposed in the supply path for supplying compressed air to the first nozzle air ejection hole 30. During the operation of the first shower nozzle 72, the solenoid valve 95 is controlled to stop the supply of compressed air.

  Thereby, it is possible to perform spinning while generating a swirling flow in the first nozzle 71 during spinning. On the other hand, by stopping the supply of compressed air to the first nozzle 71 during cleaning, it is possible to effectively remove fiber waste and the like by the first shower nozzle 72 without being affected by the swirling flow.

  Further, the spinning device 9 of the present embodiment includes a second shower nozzle 82 configured to be able to inject compressed air to the second nozzle 81.

  In this way, with the second nozzle 81 exposed, the compressed air is ejected by the second shower nozzle 82, so that fiber waste that causes nozzle clogging is blown out from the second nozzle 81 to the outside. Can be removed.

  Further, the spinning device 9 of the present embodiment is configured as follows. That is, the second nozzle air ejection hole 31 for generating a swirl flow is formed in the second nozzle 81. A solenoid valve 95 is disposed in the supply path for supplying compressed air to the second nozzle air ejection hole 31. During the operation of the second shower nozzle 82, the solenoid valve 95 is controlled to stop the supply of compressed air.

  Thereby, it is possible to perform spinning while generating a swirling flow in the second nozzle 81 during spinning. On the other hand, by stopping the supply of compressed air to the second nozzle 81 during cleaning, it is possible to effectively remove fiber waste and the like by the second shower nozzle 82 without being affected by the swirling flow.

  Although the embodiment of the present invention has been described above, the above configuration can be further modified as follows.

  The arrangement locations of the first shower nozzle 72 and the second shower nozzle 82 can be appropriately changed according to circumstances. For example, the second shower nozzle 82 can be disposed on the lower surface side of the first block 91.

  Further, the configuration of the spinning machine 1 can be appropriately changed according to circumstances. For example, instead of the yarn accumulating device 11 provided in the spinning machine 1 of the above-described embodiment, the yarn feeding device composed of a pair of rollers can be changed to a configuration arranged on the downstream side of the spinning device 9.

  In addition, the compressed air source and the path for supplying compressed air from the compressed air source to each unit used in the present embodiment can be appropriately changed according to circumstances. For example, the spinning nozzle pressure source 94 and the cleaning pressure source 96 can be shared.

1 Spinning machine 9 Spinning device (pneumatic spinning device)
30 First nozzle air ejection hole (first nozzle air ejection section)
31 2nd nozzle air ejection hole (2nd nozzle air ejection part)
42 Stopper (Regulator)
71 1st nozzle 72 1st shower nozzle (cleaning device for 1st nozzle)
81 Second nozzle 82 Second shower nozzle (second nozzle cleaning device)
91 1st block (1st support member)
92 Second block (second support member)
95 Solenoid valve (solenoid valve)

Claims (10)

A first nozzle;
A first support member for supporting the first nozzle;
A second nozzle disposed downstream of the first nozzle in the fiber traveling direction;
A second support member that supports the second nozzle and is capable of exposing the second nozzle to the outside by moving in a direction away from the first support member;
An air spinning device comprising: The pneumatic spinning device according to claim 1,
An air spinning device characterized in that a path through which the fiber that has passed through the first nozzle reaches the second nozzle is configured to be separated from the outside during spinning. The pneumatic spinning device according to claim 1 or 2,
The pneumatic spinning device is characterized in that the fiber travel path in the second nozzle during spinning is arranged so as to be inclined with respect to the fiber travel path in the first nozzle. The pneumatic spinning device according to any one of claims 1 to 3,
The pneumatic spinning device according to claim 1, wherein the first support member is configured to be movable in a direction away from a draft roller disposed upstream of the first nozzle in the fiber traveling direction. The pneumatic spinning device according to claim 4,
A regulation member that regulates movement of the first support member at a predetermined position in which the first support member is moved away from the draft roller;
The first support member is connected to the second support member through a mechanical element, and when the second support member moves in a direction away from the draft roller, the movement of the first support member is restricted by the restriction member. The pneumatic spinning device is characterized in that the first support member moves integrally with the second support member. The pneumatic spinning device according to any one of claims 1 to 5,
An air spinning device comprising: a first nozzle cleaning device configured to be capable of injecting compressed air to the first nozzle. The pneumatic spinning device according to claim 6, wherein
In the first nozzle, an air ejection portion in the first nozzle for generating a swirling flow is formed,
A solenoid valve is disposed in a supply path for supplying compressed air to the first nozzle air ejection portion,
The pneumatic spinning device is characterized in that during operation of the first nozzle cleaning device, the supply of compressed air is stopped by controlling the electromagnetic valve. The pneumatic spinning device according to any one of claims 1 to 7,
An air spinning device comprising a second nozzle cleaning device configured to be capable of injecting compressed air to the second nozzle. The pneumatic spinning device according to claim 8, wherein
In the second nozzle, an air ejection portion in the second nozzle for generating a swirling flow is formed,
An electromagnetic valve is disposed in a supply path for supplying compressed air to the second nozzle air ejection portion,
The pneumatic spinning device is characterized in that during operation of the second nozzle cleaning device, the supply of compressed air is stopped by controlling the electromagnetic valve.   A spinning machine comprising the pneumatic spinning device according to any one of claims 1 to 9.

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