JP2014009409A - Yarn storage apparatus, spinning unit, and spinning machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a yarn storage apparatus, a spinning unit, and a spinning machine that are capable of preventing the disorder of a spun yarn on a yarn storage roller.SOLUTION: The yarn storage apparatus includes a yarn storage roller on which a spun yarn generated by a spinning device is wound, and an air spray device for spraying air toward the yarn storage roller. The spinning unit includes a spinning device for generating a spun yarn, the yarn storage device, and a winder for winding a spun yarn released from the yarn storage device. The spinning device includes a plurality of the spinning units.

Description

  The present invention relates to a yarn storage device that stores spun yarn, a spinning unit that generates spun yarn and winds it around a package, and a spinning machine including a plurality of such spinning units.

  The spinning unit includes a spinning device that generates spun yarn, a winding device that winds the spun yarn around a package, and a yarn storage device that is provided between the spinning device and the winding device. The yarn storage device stores the spun yarn by winding the spun yarn around the yarn storage roller. In the spinning unit described in Patent Document 1, a yarn suction device is disposed in the vicinity of the base end side (spinning device side) of the yarn accumulating roller. The yarn suction device sucks and removes the spun yarn remaining on the yarn accumulating roller when the spun yarn is cut.

JP 2010-174421 A

  The spun yarn is wound around the yarn storage roller of the yarn storage device, and a yarn layer is formed from the base end side to the tip end side. In the spinning unit described above, the movement of the yarn end on the yarn accumulating roller is not taken into consideration. For this reason, when the yarn end of the spun yarn cut on the spinning device rolls on the yarn accumulating roller, the yarn end may come into contact with the spun yarn forming the yarn layer. Even when the spun yarn is not cut, it is conceivable that the spun yarn forming the yarn layer is entangled with the most downstream spun yarn to be unwound from the yarn accumulating roller. In these cases, the handling of the spun yarn may be hindered. Therefore, it is required to prevent the spun yarn from being disturbed on the yarn accumulating roller.

  An object of the present invention is to provide a yarn storage device, a spinning unit, and a spinning machine that can prevent the spun yarn from being disturbed on a yarn storage roller.

  The yarn storage device of the present invention includes a yarn storage roller around which a spun yarn generated by the spinning device is wound, and an air blowing device that blows air toward the yarn storage roller.

  According to this yarn accumulating device, air is blown toward the yarn accumulating roller by the air blowing device. By blowing air, the movement of the spun yarn wound around the yarn accumulating roller can be controlled. Accordingly, it is possible to prevent the spun yarn from being disturbed on the yarn accumulating roller.

  In the yarn accumulating device, the air blowing device is disposed so as to blow air toward the proximal end portion on the yarn accumulating roller on the winding start side of the spun yarn. For example, when the spun yarn is cut on the spinning device side, the yarn end of the spun yarn is located near the base end. In such a case, it is possible to suppress the yarn end from rolling on the yarn accumulating roller and moving to the tip end side by blowing air toward the base end portion. Therefore, it is possible to prevent the yarn end from being entangled with the spun yarn forming the yarn layer.

  In the yarn accumulating device, the air blowing device is arranged on the outer side in the radial direction of the yarn accumulating roller and on the tip side that is the side where the spun yarn is unwound in the rotation axis direction of the yarn accumulating roller. According to this configuration, it becomes easy to create an air flow from the front end side to the base end side of the yarn accumulating roller. Therefore, the yarn end of the spun yarn cut on the spinning device side can be prevented from rolling on the yarn accumulating roller and moving to the tip end side, and the yarn end can be entangled with the spun yarn forming the yarn layer. Can be prevented. Further, the yarn layer other than the most downstream spun yarn to be unwound from the yarn accumulating roller can be held at a predetermined position.

  The yarn storage device further includes a yarn hooking member that hooks the spun yarn. The yarn hooking member is provided on the tip end side which is the side where the spun yarn is unwound in the yarn accumulating roller. Since the air blowing device prevents the spun yarn from being disturbed on the yarn accumulating roller, the spun yarn is prevented from being entangled with each other. Therefore, the spun yarn is prevented from being entangled with the yarn hooking member.

  The yarn storage device further includes a restriction unit. The restricting portion is disposed so as to face the base end portion on the yarn accumulation roller on the side where the spun yarn is wound. The restricting portion is arranged such that when the spun yarn is cut on the spinning device side, the yarn end of the spun yarn swung around on the base end side precedes the unwinding of the spun yarn from the front end side of the yarn accumulating roller. Regulate moving to. According to this configuration, it is possible to more reliably prevent the yarn end from being entangled with the spun yarn forming the yarn layer by the cooperation of the air blowing device and the regulating portion.

  The spinning unit of the present invention includes a spinning device that generates spun yarn, the above-described yarn storage device, and a winding device that winds the spun yarn unwound from the yarn storage device into a package. In the yarn accumulating device, the spun yarn can be prevented from being disturbed on the yarn accumulating roller, so that the spun yarn can be wound up without any trouble by the winding device.

  The spinning unit includes a yarn cutting unit that cuts the spun yarn. The yarn cutting unit is arranged on the upstream side of the yarn accumulating device with reference to the traveling direction of the spun yarn. Even when the spun yarn is cut on the spinning device side, the yarn end of the spun yarn can be prevented from being entangled with the spun yarn forming the yarn layer. Therefore, it is possible to prevent the spun yarn from being unwound from the yarn accumulating device due to a loop-out shape.

  In the spinning unit, the air blowing device blows air toward the yarn accumulating roller when the spun yarn is cut by the yarn cutting unit. According to this configuration, it is possible to more effectively prevent the yarn end of the spun yarn cut by the yarn cutting portion from being entangled with the spun yarn forming the yarn layer.

  In the spinning unit, the air blowing device blows air toward the yarn accumulating roller when the spun yarn is broken. According to this configuration, it is possible to more effectively prevent the yarn end of the spun yarn generated by the yarn breakage from being entangled with the spun yarn forming the yarn layer.

  The spinning machine of the present invention includes a plurality of the above spinning units. In each spinning unit, disturbance of the spun yarn on the yarn accumulating roller can be prevented, and the spun yarn can be wound up without any trouble.

  According to the present invention, spun yarn disturbance on the yarn accumulating roller can be prevented.

It is a front view of the spinning machine of one embodiment of the present invention. It is a side view of the spinning unit of one embodiment of the present invention. FIG. 3 is a perspective view of a yarn storage device of the spinning unit of FIG. 2. It is a perspective view of the yarn accumulating device immediately after yarn cutting. (A) is a front view showing a yarn storage device of the present embodiment immediately after yarn cutting, and (b) is a front view showing a conventional yarn storage device immediately after yarn cutting. It is a side view of the spinning unit during the yarn splicing operation. It is a side view of the spinning unit during the yarn splicing operation. It is a side view of the spinning unit after the occurrence of yarn breakage. It is a perspective view of the yarn storage device after the occurrence of yarn breakage. It is the figure which looked at the regulating member of the yarn storage device of FIG. 3 from the yarn storage roller side. It is the figure which looked at the control member of the yarn storage device of FIG. 3 from the front. (A) is a bottom view which shows arrangement | positioning of the air spraying apparatus in the yarn storage apparatus of FIG. 3, (b) and (c) are bottom views which show the deformation | transformation aspect of a yarn storage apparatus.

  DESCRIPTION OF EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings. In addition, in each figure, the same code | symbol is attached | subjected to the same or an equivalent part, and the overlapping description is abbreviate | omitted.

  As shown in FIG. 1, the spinning machine 1 includes a plurality of spinning units 2, a yarn splicing cart 3, a blower box 4, and a prime mover box 5. The plurality of spinning units 2 are arranged in a line, and each spinning unit 2 generates the spun yarn Y and winds it on the package P. The yarn splicing cart 3 performs a yarn splicing operation in the spinning unit 2 from which the spun yarn Y has been cut. The blower box 4 accommodates an air supply source for generating a suction flow or a swirl flow in each part of the spinning unit 2. The prime mover box 5 accommodates a prime mover for supplying power to each part of the spinning unit 2.

  In the following description, in the path along which the spun yarn Y travels (that is, the yarn path), the side on which the spun yarn Y is generated is referred to as the upstream side, and the side on which the spun yarn Y is wound is referred to as the downstream side. The terms “upstream side” and “downstream side” have the same meaning as the upstream side and the downstream side in the traveling direction of the spun yarn Y, respectively. The side where the yarn path is located with respect to the yarn joining cart 3 is referred to as a front side, and the opposite side is referred to as a rear side. Here, a work passage (not shown) extending in the arrangement direction of the plurality of spinning units 2 is provided on the front side of the spinning machine 1. Accordingly, the operator can operate and / or monitor each spinning unit 2 from the work path.

  As shown in FIGS. 1 and 2, each spinning unit 2 includes, in order from the upstream side, a draft device 6, a spinning device 7, a yarn clearer (yarn defect detecting device) 8, and a tension sensor (tension measuring device). 9, a yarn storage device 50, a waxing device 11, and a winding device 12. These devices are directly or indirectly supported by the frame 13 so that the upstream side is the upper side (that is, the downstream side is the lower side) in the machine height direction. The yarn clearer 8, the tension sensor 9, the yarn storage device 50, and the waxing device 11 are detachably attached to the frame 13 as a yarn processing module 80.

  The draft device 6 extends the sliver S to generate a fiber bundle F (that is, the fiber bundle F is a draft). The draft device 6 includes a back roller pair 14, a third roller pair 15, a middle roller pair 17 on which an apron belt 16 is hung, and a front roller pair 18. The bottom rollers of each of the roller pairs 14, 15, 17, and 18 are driven at different rotational speeds by power from the prime mover box 5 or an electric motor (not shown) provided for each spinning unit 2. As a result, the draft device 6 draws the sliver S supplied from the upstream side to generate the fiber bundle F and supplies it to the spinning device 7 on the downstream side.

  The spinning device 7 is an air spinning device that generates a spun yarn Y by twisting the fiber bundle F by a swirling flow of air. More specifically (however, illustration is omitted), the spinning device 7 includes a spinning chamber, a fiber guide portion, a swirl flow generating nozzle, and a hollow guide shaft body. The fiber guide unit guides the fiber bundle F supplied from the upstream draft device 6 into the spinning chamber. The swirl flow generating nozzle is disposed around a path along which the fiber bundle F travels, and generates a swirl flow in the spinning chamber. By this swirl flow, the fiber ends of the fiber bundle F guided into the spinning chamber are reversed and swirled. The hollow guide shaft body guides the spun yarn Y from the spinning chamber to the outside of the spinning device 7.

  The yarn clearer 8 detects a yarn defect of the traveling spun yarn Y between the spinning device 7 and the yarn storage device 50, and transmits a yarn defect detection signal to the unit controller 10. The yarn clearer 8 detects, for example, an abnormal thickness of the spun yarn Y and / or a foreign substance contained in the spun yarn Y as the yarn defect. The tension sensor 9 measures the tension of the traveling spun yarn Y between the spinning device 7 and the yarn storage device 50 and transmits a tension measurement signal to the unit controller 10. The waxing device 11 applies wax to the traveling spun yarn Y between the yarn storage device 50 and the winding device 12. The unit controller 10 is provided for each spinning unit 2 and controls the operation of the spinning unit 2.

  The yarn storage device 50 stores the traveling spun yarn Y between the spinning device 7 and the winding device 12. The yarn storage device 50 retains the spun yarn Y sent out from the spinning device 7 during the yarn splicing operation by the yarn splicing carriage 3 and the like, so that the spun yarn Y is slackened. And the function of adjusting the tension of the spun yarn Y on the winding device 12 side and preventing the fluctuation of the tension of the spun yarn Y on the winding device 12 side from being transmitted to the spinning device 7 side. Yes. The yarn storage device 50 according to the present embodiment further has a function of preventing the position of the spun yarn Y stored in the yarn storage device 50 from being disturbed.

  The winding device 12 winds the spun yarn Y unwound from the yarn storage device 50 around the package P to form a fully wound package P. The winding device 12 includes a cradle arm 21, a winding drum 22, and a traverse device 23. The cradle arm 21 is swingably supported by a support shaft 24 and winds the surface of a bobbin B or a package P (that is, a bobbin B around which a spun yarn Y is wound) that is rotatably supported. The surface of the drum 22 is brought into contact with an appropriate pressure. The winding drum 22 is driven by an electric motor (not shown) provided for each spinning unit 2 to rotate the bobbin B and the package P. The traverse device 23 is driven by a shaft 25 shared by the plurality of spinning units 2 and traverses the spun yarn Y with a predetermined width with respect to the rotating bobbin B and the package P.

  The yarn joining cart 3 travels to the spinning unit 2 from which the spun yarn Y has been cut, and performs a yarn joining operation in the spinning unit 2. The yarn joining cart 3 has a splicer (yarn joining device) 26, a suction pipe 27, and a suction mouth 28. The suction pipe 27 is rotatably supported by the support shaft 31, and sucks and captures the yarn end of the spun yarn Y on the spinning device 7 side and guides it to the splicer 26. The suction mouth 28 is rotatably supported by the support shaft 32, and sucks and captures the yarn end of the spun yarn Y on the winding device 12 side and guides it to the splicer 26. The splicer 26 performs yarn splicing between the delivered yarn ends.

  Next, the configuration of the above-described yarn storage device 50 will be described. As shown in FIGS. 2 and 3, the yarn storage device 50 includes a yarn storage roller 51, an electric motor 55, a lower limit side yarn storage amount sensor 56, an upper limit side yarn storage amount sensor 57, and a yarn hooking member 61. A thread removing member 64, a suction mechanism 65, a regulating member 71, and an air blowing device 90. Between the spinning device 7 and the yarn accumulating roller 51, a first guide member 78 and a yarn operation control member 75 are provided in this order from the upstream side. A second guide member 79 is provided between the yarn accumulating roller 51 and the winding device 12.

  The yarn accumulating roller 51 is fixed to the drive shaft of the electric motor 55 and is rotated by the electric motor 55. The yarn accumulating roller 51 includes a yarn accumulating portion 52, a proximal end side tapered portion 53, and a distal end side tapered portion 54. The yarn storage portion 52 is a cylindrical portion around which the spun yarn Y is wound, and is slightly tapered toward the tip side. The yarn storage section 52 has a base end portion 52a that is a winding start side of the spun yarn Y and a front end portion 52b that is a side where the spun yarn Y is unwound. The proximal end side taper portion 53 is widened toward the upstream side from the proximal end portion 52 a of the yarn storage portion 52. The tip side taper portion 54 is widened toward the downstream side from the tip portion 52 b of the yarn storage portion 52.

  The proximal end side taper portion 53 receives the spun yarn Y introduced into the yarn accumulating roller 51 from the upstream side and smoothly guides it to the proximal end portion 52 a of the yarn accumulating portion 52. Thereby, the spun yarn Y is wound around the yarn storage portion 52 in an orderly manner from the proximal end side toward the distal end side. The spun yarn Y wound around the yarn storage unit 52 forms a yarn layer Yc on the yarn storage unit 52. The yarn layer Yc is a portion where the spun yarn Y is wound in the yarn storage portion 52 so that the spun yarns Y are substantially parallel to each other. On the other hand, when the spun yarn Y is unwound from the yarn accumulating roller 51, the tip side taper portion 54 prevents the occurrence of a loop-out phenomenon in which the spun yarn Y wound around the yarn accumulating portion 52 falls off at once. The spun yarn Y is smoothly led out from the yarn storage roller 51 to the downstream side.

  The lower limit side yarn accumulation amount sensor 56 is a sensor that detects the presence or absence of the spun yarn Y on the yarn accumulation roller 51 in a non-contact manner, and is disposed on the rear side of the yarn accumulation roller 51 so as to face the yarn accumulation portion 52. Yes. The lower limit side yarn storage amount sensor 56 transmits a lower limit storage amount detection signal to the unit controller 10 when the storage amount of the spun yarn Y wound around the yarn storage roller 51 reaches the lower limit amount. The upper limit side yarn accumulation amount sensor 57 is a sensor that detects the presence or absence of the spun yarn Y on the yarn accumulation roller 51 in a non-contact manner, and is located on the side of the yarn accumulation roller 51 so as to face the tip portion 52b of the yarn accumulation portion 52. Is arranged. The upper limit side yarn storage amount sensor 57 transmits an upper limit storage amount detection signal to the unit controller 10 when the storage amount of the spun yarn Y wound around the yarn storage roller 51 reaches the upper limit amount.

  The yarn hooking member 61 is provided on the winding device 12 side (tip end side) with respect to the yarn accumulating roller 51, and is a member that hooks the spun yarn Y and winds it around the yarn accumulating roller 51, and includes a flyer shaft 62 and a flyer 63. And have. The flyer shaft 62 is supported on the tip side of the yarn accumulating roller 51 so as to be rotatable relative to the yarn accumulating roller 51 around the same axis. The flyer 63 is fixed to the tip of the flyer shaft 62 and is curved on the tip side taper portion 54 of the yarn accumulating roller 51 so that the spun yarn Y is caught. Here, a magnetic force is applied between the yarn accumulating roller 51 and the flyer shaft 62. In order to rotate the yarn hooking member 61 relative to the yarn accumulating roller 51, a predetermined value is applied to the yarn hooking member 61. It is necessary to generate the above torque.

  The yarn removing member 64 is a member that removes the spun yarn Y from the yarn hooking member 61, and is disposed in the vicinity of the front end side tapered portion 54 of the yarn accumulating roller 51. The thread removing member 64 is supported so as to be swingable between a lowered position and a raised position. The lowered position is a position retracted from the yarn path, and the raised position is a position where the spun yarn Y on the yarn path is pushed up and the spun yarn Y is removed from the yarn hooking member 61. Since the yarn removing member 64 is biased to the lowered position side by a spring (not shown), it is normally located at the lowered position, and the air pressure provided in the yarn joining carriage 3 during the yarn joining operation or the like. It is moved to the raised position by a cylinder (not shown).

  The suction mechanism 65 generates a suction flow of air at a suction port 66 a disposed so as to face the proximal end side tapered portion 53 of the yarn accumulating roller 51. The suction port 66a is provided at one end of the pipe-like member 66, and the other end of the pipe-like member 66 is piped (not shown) to a fiber waste collection chamber (not shown) common to the suction pipe 27 and the suction mouth 28. Connected through. As will be described later, when the spun yarn Y is cut on the spinning device 7 side, the yarn end of the spun yarn Y is swung around on the base end portion 52a side of the yarn accumulating portion 52. The suction flow generated by the suction port 66a is affected. Therefore, the fiber waste at the yarn end is removed by the suction mechanism 65 with almost no scattering.

  The restricting member 71 is a plate material disposed on the side of the yarn accumulating roller 51 (so as to face the yarn accumulating portion 52), and includes a first restricting portion 72, a second restricting portion 73, and a third restricting portion 74. And have. The first restricting portion 72 and the second restricting portion 73 are configured such that when the spun yarn Y is cut on the spinning device 7 side, the yarn end of the spun yarn Y swung around on the base end portion 52a side of the yarn accumulating portion 52 is the yarn accumulating portion. The movement of the spun yarn Y from the front end portion 52b side of 52 is restricted from moving to the front end portion 52b side of the yarn storage portion 52. The third regulating portion 74 is configured such that when the spun yarn Y is cut on the winding device 12 side, the yarn end of the spun yarn Y that is swung around on the front end portion 52b side of the yarn storage portion 52 is the base end portion 52a of the yarn storage portion 52. Prior to the unwinding of the spun yarn Y from the side, the movement to the base end portion 52a side of the yarn accumulating portion 52 is restricted.

  The yarn operation control member 75 is a plate member attached to the upstream side of the yarn storage roller 51 (here, the lower surface (downstream end surface) of the tension sensor 9), and includes a guide function unit 76, a regulation function unit 77, have. The guide function unit 76 applies tension to the spun yarn Y to guide the spun yarn Y to the proximal end side taper portion 53 of the yarn accumulating roller 51, and the twist of the spun yarn Y transmitted from the spinning device 7 serves as a guide function. Transmission to the downstream side of the portion 76 is prevented. When the spun yarn Y is cut on the spinning device 7 side, the regulating function unit 77 moves beyond the yarn accumulating roller 51 so that the yarn end of the spun yarn Y deviates from the yarn path of the spun yarn Y guided by the yarn accumulating device 50. The movement to the yarn hooking member 61 side is restricted.

  The first guide member 78 is a plate attached to the upstream side of the yarn accumulating roller 51 (here, the lower surface of the tension sensor 9 (the end surface on the downstream side)), and from the slit formed in the casing of the tension sensor 9. The spun yarn Y is guided to a predetermined detection position arranged in the housing. The second guide member 79 is a plate material attached to the downstream side of the yarn accumulating roller 51 (here, on the module frame 81 of the yarn processing module 80), and guides the spun yarn Y to a predetermined position of the waxing device 11. The trajectory of the spun yarn Y swung around by the rotating yarn hooking member 61 is restricted, and the traveling of the spun yarn Y on the downstream side of the second guide member 79 is stabilized.

  The air blowing device 90 prevents the spun yarn Y from being disturbed on the yarn storage unit 52 by blowing air toward the yarn storage unit 52. The air blowing device 90 is made of, for example, a resin air blowing member. The air blowing device 90 is disposed on the radially outer side of the yarn accumulating roller 51. The air blowing device 90 is disposed on the side opposite to the regulating member 71 in the circumferential direction of the yarn accumulating roller 51 (see FIG. 12A). The air blowing device 90 is disposed on the tip side, which is the side where the spun yarn Y is unwound, in the direction of the rotational axis of the yarn accumulating roller 51. In other words, the air blowing device 90 is disposed so as to face the front end portion 52 b or the front end side taper portion 54 of the yarn storage portion 52.

  The air blowing device 90 has a blowout hole (not shown) directed to the proximal end portion 52a of the yarn storage portion 52. A plurality of blowing holes are provided along the circumferential direction of the yarn accumulating roller 51. The air blowing device 90 blows air supplied from a compressed air source (not shown) toward the proximal end portion 52a of the yarn accumulating portion 52 (see FIG. 5A). The air blowing device 90 blows air so that air flows on the surface of the yarn accumulating portion 52 from the distal end portion 52b toward the proximal end portion 52a. The air blowing device 90 maintains the yarn layer Yc so that the yarn layer Yc formed on the yarn storage unit 52 is not disturbed. When the spun yarn Y is cut on the spinning device 7 side (upstream side of the yarn accumulating roller 51), the air blowing device 90 moves the yarn end Yb of the spun yarn Y to the proximal end side or the base side of the yarn accumulating roller 51. It is held on the end side taper portion 53. The air blowing device 90 holds the yarn layer Yc other than the most downstream spun yarn Y to be unwound from the yarn accumulating roller 51 in a predetermined position.

  The air blowing device 90 is on / off controlled by, for example, the unit controller 10. The air blowing device 90 blows air for a certain period at a predetermined timing. The air blowing device 90 blows air toward the yarn storage unit 52 when the spun yarn Y is cut by the air stop of the spinning device 7 and / or when the spun yarn Y is broken.

  Next, the operation of the above-described yarn storage device 50 will be described. When the spinning unit 2 performs a normal operation in which the spun yarn Y is generated and wound around the package P, the electric motor 55 drives the yarn accumulating roller 51 at a substantially constant rotational speed. As a result, the yarn hooking member 61 rotates integrally with the yarn accumulating roller 51, and the flyer 63 hooks the spun yarn Y. Then, the yarn hooking member 61 that rotates while the spun yarn Y is hooked winds the spun yarn Y around the rotating yarn storage roller 51.

  When the spun yarn Y is wound around the yarn storage roller 51, the unit controller 10 sends the lower limit storage amount detection signal transmitted from the lower limit side yarn storage amount sensor 56 and the upper limit storage amount transmitted from the upper limit side yarn storage amount sensor 57. Based on the detection signal, the operation of the spinning unit 2 is controlled so that the storage amount of the spun yarn Y wound around the yarn storage roller 51 is not less than the lower limit amount and not more than the upper limit amount. When the storage amount of the spun yarn Y wound around the yarn storage roller 51 becomes equal to or more than the lower limit amount, the contact area between the yarn storage portion 52 of the yarn storage roller 51 and the spun yarn Y increases, and the yarn storage portion 52 and the spun yarn Y Slip or the like hardly occurs between the two. Therefore, the yarn accumulating device 50 can stably draw out the spun yarn Y from the spinning device 7 by the rotation of the yarn accumulating roller 51 (that is, at substantially constant quality and substantially constant speed).

  In a state where the spun yarn Y is wound around the yarn accumulating roller 51, when the tension of the spun yarn Y on the winding device 12 side becomes high, a force for rotating the yarn hooking member 61 relative to the yarn accumulating roller 51 ( That is, a force for stopping rotation of the yarn hooking member 61 acts on the flyer 63. As a result, when the torque generated in the yarn hooking member 61 exceeds a predetermined value, the yarn hooking member 61 rotates relative to the yarn accumulating roller 51, and as a result, the spun yarn Y is unwound from the yarn accumulating roller 51. When the tension of the spun yarn Y on the winding device 12 side becomes low and the torque generated in the yarn hooking member 61 becomes less than a predetermined value, the yarn hooking member 61 rotates integrally with the yarn accumulating roller 51, and as a result, yarn accumulating The spun yarn Y is wound around the roller 51. Thus, the yarn storage device 50 adjusts the tension of the spun yarn Y on the winding device 12 side to prevent the fluctuation of the tension of the spun yarn Y on the winding device 12 side from being transmitted to the spinning device 7 side. Can do.

  Next, the operation of the spinning unit 2 when detecting a yarn defect will be described. When the yarn clearer 8 detects a yarn defect during the normal operation in which the spun yarn Y is generated and wound around the package P in the spinning unit 2, the yarn clearer 8 sends a yarn defect detection signal to the unit controller 10. Send to. Upon receipt of the yarn defect detection signal, the unit controller 10 immediately stops the operations of the draft device 6 and the spinning device 7. As a result, the fiber bundle F is not twisted, and the spun yarn Y is cut on the spinning device 7 side. In this case, the spinning device 7 is a yarn cutting unit that cuts the spun yarn Y.

  Even if the spun yarn Y is cut on the spinning device 7 side, the unit controller 10 continues the rotation of the yarn accumulating roller 51 and the winding by the winding device 12. Therefore, as shown in FIG. 4, the yarn end of the cut spun yarn Y is wound around the yarn accumulating roller 51, and the spun yarn Y is unwound from the yarn accumulating roller 51 to the winding device 12 side. In the meantime, the yarn is swung around on the base end portion 52a side of the yarn accumulating portion 52. At this time, the yarn end is subjected to the action of the suction flow generated at the suction port 66a while the movement of the yarn accumulating portion 52 toward the distal end portion 52b is restricted by the first restricting portion 72 of the restricting member 71. Therefore, the spun yarn Y is smoothly unwound from the yarn accumulating roller 51 to the winding device 12, and the fiber waste at the upstream yarn end is removed by the suction mechanism 65 with almost no scattering.

  The winding amount of the spun yarn Y wound around the yarn accumulating roller 51 continues to decrease while the winding by the winding device 12 continues and the spun yarn Y is unwound on the winding device 12 side. When the storage amount of the spun yarn Y reaches the lower limit amount, a lower limit storage amount detection signal is transmitted to the unit controller 10 by the lower limit side yarn storage amount sensor 56. When the unit controller 10 receives the yarn defect detection signal and the lower limit storage amount detection signal, the unit controller 10 controls the air blowing device 90 to be on.

  Since the spun yarn Y is twisted, the yarn end Yb tends to roll on the yarn storage portion 52. When air is blown toward the base end portion 52a by the air blowing device 90, the yarn end Yb is returned to the original position on the base end portion 52a even if it is about to roll toward the tip end portion 52b. It stays (see FIG. 5 (a)). Alternatively, the yarn end Yb rolls toward the proximal end side tapered portion 53 and remains on the proximal end side tapered portion 53. This prevents the yarn end Yb from getting entangled with the spun yarn Y forming the yarn layer Yc.

  Since air is blown by the air blowing device 90 so that air flows on the surface of the yarn accumulating portion 52 from the distal end portion 52b toward the proximal end portion 52a, the most downstream side to be unwound from the yarn accumulating roller 51 The yarn layer Yc other than the spun yarn Y is held at a predetermined position. This prevents the spun yarn Y forming the yarn layer Yc from being entangled with the most downstream spun yarn Y.

  As described above, the cooperation between the air blowing device 90 and the regulating member 71 prevents the spun yarn Y forming the yarn layer Yc from being entangled with the yarn end Yb and / or the spun yarn Y to be unwound. Also, the occurrence of a loop-out phenomenon is prevented. For this reason, the spun yarn Y is prevented from being entangled with the yarn hooking member 61.

  When the winding device 12 winds up the package P to the yarn end Yb of the cut spun yarn Y, the unit controller 10 transmits a control signal indicating the spun unit 2 from which the spun yarn Y has been cut to the yarn splicing carriage 3. To do. Thereby, the yarn joining cart 3 travels to the front of the spinning unit 2 and starts the yarn joining operation. The unit controller 10 transmits a control signal indicating the spinning unit 2 from which the spun yarn Y has been cut to the yarn splicing carriage 3, and controls the air blowing device 90 to be turned off (stops air blowing).

  First, as shown in FIG. 6, the suction mouth 28 rotates to the vicinity of the surface of the package P to generate a suction flow, and the winding device 12 rotates the package P in the reverse direction (opposite to the normal winding direction). Rotate in the unwinding direction). As a result, the suction mouse 28 draws and captures the yarn end of the spun yarn Y from the surface of the package P. Subsequently, as shown in FIG. 7, the suction mouse 28 rotates to the original position (standby position), and guides the yarn end of the spun yarn Y on the winding device 12 side to the splicer 26. Here, the winding device 12 stops the rotation of the package P.

  Before or after the operation of the suction mouth 28 or simultaneously, as shown in FIG. 6, the suction pipe 27 rotates to the downstream side of the spinning device 7 to generate a suction flow. At this time, since the unit controller 10 restarts the operations of the draft device 6 and the spinning device 7, the suction pipe 27 captures the yarn end of the generated spun yarn Y. Subsequently, as shown in FIG. 7, the suction pipe 27 rotates to the original position (standby position) to guide the yarn end of the spun yarn Y on the spinning device 7 side to the splicer 26.

  When the yarn end of the spun yarn Y on the winding device 12 side and the yarn end of the spun yarn Y on the spinning device 7 side are guided to the splicer 26, in the yarn accumulating device 50, the yarn hooking member 61 is located on the spinning device 7 side. The spun yarn Y is hooked and wound around the yarn accumulating roller 51 that rotates integrally. Thereby, even if winding by the winding device 12 is stopped, the slack yarn Y sent out from the spinning device 7 hardly generates slack. In this way, the yarn accumulating device 50 can prevent the spun yarn Y from slackening by retaining the spun yarn Y sent out from the spinning device 7 during the yarn splicing operation by the yarn splicing carriage 3 or the like.

  When the storage amount of the spun yarn Y wound around the yarn storage roller 51 reaches the lower limit amount, slip or the like hardly occurs between the yarn storage portion 52 of the yarn storage roller 51 and the spun yarn Y. The spun yarn Y is stably pulled out from the apparatus 7 (that is, at a substantially constant quality and a substantially constant speed). Here, the unit controller 10 moves the yarn removing member 64 from the lowered position to the raised position, and the yarn removing member 64 removes the spun yarn Y from the yarn hooking member 61.

  As described above, when the spun yarn Y is removed from the yarn hooking member 61 while the yarn accumulating roller 51 is rotating, there is almost no resistance to prevent the spun yarn Y from being unwound from the yarn accumulating roller 51. . As a result, the spun yarn Y wound around the yarn accumulating roller 51 before the accumulated amount of the spun yarn Y reaches the lower limit amount (that is, the spun yarn Y with unstable quality) is removed from the yarn accumulating roller 51 by the suction pipe 27. It is unraveled and sucked. Also during this time, since the spun yarn Y is stably drawn out from the spinning device 7 and wound around the yarn accumulating roller 51, the accumulated amount of the spun yarn Y is maintained at the lower limit amount or more.

  When the spun yarn Y with unstable quality is removed by the suction pipe 27, the unit controller 10 moves the yarn removing member 64 from the raised position to the lowered position. As a result, the spun yarn Y on the spinning device 7 side is hung on the yarn hooking member 61, and the spun yarn Y is not unwound downstream from the yarn accumulating roller 51. Here, the splicer 26 joins the yarn end of the spun yarn Y on the winding device 12 side and the yarn end of the spun yarn Y on the spinning device 7 side. At this time, unnecessary yarn ends cut by the splicer 26 are removed by the suction pipe 27 and the suction mouth 28. Then, when the splicing by the splicer 26 is completed, the unit controller 10 resumes winding by the winding device 12.

  Next, the operation of the spinning unit 2 when the yarn is broken will be described. As shown in FIG. 8, when the spinning unit 2 performs the normal operation in which the spun yarn Y is generated and wound around the package P, the spun yarn Y is cut downstream of the yarn storage device 50. Then, the spun yarn Y is not detected by the yarn traveling sensor (not shown) provided on the downstream side of the yarn accumulating device 50. Thereby, the unit controller 10 determines that the yarn breakage has occurred between the yarn accumulating device 50 and the winding device 12, and immediately stops the operations of the draft device 6, the spinning device 7, and the like. Thereby, twist is not given to the fiber bundle F, and the spun yarn Y is cut also on the spinning device 7 side.

  Even if the spun yarn Y is cut on the spinning device 7 side, the unit controller 10 continues the rotation of the yarn accumulating roller 51 and the winding by the winding device 12. Therefore, the cut yarn end Yb of the spun yarn Y is wound around the yarn storage roller 51 and swung around the base end portion 52a side of the yarn storage portion 52. At this time, the yarn end Yb is subjected to the action of the suction flow generated at the suction port 66a while the movement of the yarn accumulating portion 52 toward the distal end portion 52b is restricted by the first restricting portion 72 of the restricting member 71. . Therefore, the fiber waste at the upstream yarn end Yb is removed by the suction mechanism 65 with almost no scattering.

  Here, since the spun yarn Y wound around the yarn accumulating roller 51 is also cut off at the downstream side, it is not unwound from the yarn accumulating roller 51 to the downstream side. Therefore, the unit controller 10 stops the normal rotation (normal rotation direction) of the yarn accumulating roller 51 and reversely rotates the yarn accumulating roller 51. At this time, the movement of the yarn end Yb on the upstream side of the spun yarn Y that has been wound around the yarn accumulating roller 51 to the tip end 52b side of the yarn accumulating portion 52 is restricted by the second restricting portion 73 of the restricting member 71. . Therefore, as shown in FIG. 9, the upstream yarn end Yb is reliably captured by the suction port 66 a of the suction mechanism 65. Further, the downstream end of the spun yarn Y wound around the yarn accumulating roller 51 is restricted from moving toward the base end portion 52 a of the yarn accumulating portion 52 by the third restricting portion 74 of the restricting member 71. Accordingly, the spun yarn Y wound around the yarn storage roller 51 is smoothly unwound from the base end portion 52 a side of the yarn storage portion 52 and sucked into the suction mechanism 65.

  When the spun yarn Y wound around the yarn storage roller 51 is removed by the suction mechanism 65, the unit controller 10 stops the reverse rotation of the yarn storage roller 51 and rotates the yarn storage roller 51 forward. The unit controller 10 transmits a control signal indicating the spinning unit 2 in which the spun yarn Y is cut to the yarn splicing carriage 3. Thereby, the yarn joining cart 3 travels to the front of the spinning unit 2 and executes the yarn joining operation as described above.

  Next, the configuration of the regulating member 71 of the yarn storage device 50 will be described in more detail. As shown in FIGS. 10 and 11, the first restricting portion 72, the second restricting portion 73, and the third restricting portion 74 of the restricting member 71 are integrally formed by a rectangular plate material 70 made of, for example, metal. Yes. The upper end portion 70 a of the plate member 70 is provided with a notch portion 70 b, and the suction port 66 a of the suction mechanism 65 faces the proximal end side taper portion 53 of the yarn accumulating roller 51 through the notch portion 70 b. A lower end portion 70c of the plate member 70 is bent to the opposite side of the yarn accumulating roller 51, and an upper limit side yarn accumulating amount sensor 57 is attached to the lower surface of the lower end portion 70c.

  The first restricting portion 72 is located on the upstream side of the notch portion 70b in the rotational direction A of the yarn accumulating roller 51 when the spun yarn Y is wound, that is, on the upstream side of the suction port 66a in the rotational direction A. The 1st control part 72 is arrange | positioned so that the base end part 52a of the thread | yarn storage part 52 may be opposed. The first restricting portion 72 is configured such that the yarn end Yb of the spun yarn Y swung on the base end portion 52a side of the yarn accumulating portion 52 when the spun yarn Y is cut on the spinning device 7 side is the distal end portion 52b of the yarn accumulating portion 52. Prior to the unwinding of the spun yarn Y from the side, the movement to the tip end portion 52b side of the yarn accumulating portion 52 is restricted.

  The second restricting portion 73 is located on the downstream side of the notch portion 70b in the rotation direction A of the yarn accumulating roller 51 when the spun yarn Y is wound, that is, on the downstream side of the suction port 66a in the rotation direction A. The second restricting portion 73 is disposed so as to face the proximal end portion 52a of the yarn accumulating portion 52. The second restricting portion 73 is configured such that when the spun yarn Y is cut on the spinning device 7 side, the yarn end Yb of the spun yarn Y swung on the base end portion 52a side of the yarn accumulating portion 52 is the tip end portion 52b of the yarn accumulating portion 52. Prior to the unwinding of the spun yarn Y from the side, the movement to the tip end portion 52b side of the yarn accumulating portion 52 is restricted.

  Note that the fact that the first restricting portion 72 is located upstream of the suction port 66a in the rotation direction A is based on the distance from the suction port 66a to the first restricting portion 72 when the yarn accumulating roller 51 is rotated in the rotation direction A side. This also means that the distance from the suction port 66a to the first restricting portion 72 when the yarn accumulating roller 51 is rotated in the direction opposite to the rotation direction A is shorter. The fact that the second restricting portion 73 is located downstream of the suction port 66a in the rotation direction A is based on the distance from the suction port 66a to the second restricting portion 73 when the yarn accumulating roller 51 is turned to the opposite side of the rotation direction A. This also means that the distance from the suction port 66a to the second restricting portion 73 when the yarn accumulating roller 51 is rotated in the rotation direction A side is shorter.

  The third restricting portion 74 is disposed so as to face the yarn storage portion 52 on the lower side (the front end portion 52b side) of the cutout portion 70b, that is, the lower side (the front end portion 52b side) of the suction port 66a. The third regulating portion 74 is configured such that when the spun yarn Y is cut on the winding device 12 side, the yarn end of the spun yarn Y that is swung around on the front end portion 52b side of the yarn storage portion 52 is the base end portion 52a of the yarn storage portion 52. Prior to the unwinding of the spun yarn Y from the side, the movement to the base end portion 52a side of the yarn accumulating portion 52 is restricted. The third restricting portion 74 is a part of the plate material 70 that is deformed so as to be convex toward the yarn accumulating portion 52, and is substantially along the rotation axis of the yarn accumulating roller 51 along the surface of the yarn accumulating portion 52. It extends in the parallel direction.

  As described above, in the spinning unit 2, when the spun yarn Y is cut on the spinning device 7 side (that is, the introduction side with respect to the yarn accumulating roller 51), such as when a yarn defect is detected, the base of the yarn accumulating portion 52. The first restricting portion 72 and the second restricting portion 73 restrict the movement of the yarn end Yb of the spun yarn Y swung on the end portion 52 a side toward the tip end portion 52 b side of the yarn accumulating portion 52. As a result, the yarn end Yb on the upstream side is entangled with the spun yarn Y wound around the front end portion 52b side of the yarn accumulating portion 52, so that the spun yarn Y is smoothly unwound from the front end portion 52b side of the yarn accumulating portion 52. Inhibition can be prevented.

  Furthermore, when the air blowing device 90 operates, the yarn end Yb remains at the original position on the base end portion 52a. Alternatively, the yarn end Yb rolls toward the proximal end side tapered portion 53 and remains on the proximal end side tapered portion 53. This prevents the yarn end Yb from getting entangled with the spun yarn Y forming the yarn layer Yc. It is possible to prevent the spun yarn Y forming the yarn layer Yc from being entangled with the most downstream spun yarn Y.

  When the spun yarn Y is cut on the winding device 12 side (that is, the lead-out side with respect to the yarn accumulating roller 51) such as when the yarn is broken, the spun yarn Y is unwound from the base end portion 52a side of the yarn accumulating portion 52. When the yarn accumulating roller 51 is rotated in the reverse direction as described above, the yarn end of the spun yarn Y swung on the tip end 52b side of the yarn accumulating portion 52 moves to the base end portion 52a side of the yarn accumulating portion 52. It is regulated by a third regulating part 74 that extends in a direction substantially parallel to the rotational axis direction of the yarn accumulating roller 51 along the surface of the accumulating part 52. As a result, the downstream yarn end is entangled with the spun yarn Y wound around the base end portion 52a side of the yarn storage portion 52, so that the spun yarn Y is smoothly unwound from the base end portion 52a side of the yarn storage portion 52. Can be prevented.

  According to the yarn accumulating device 50 of this embodiment, air is blown toward the yarn accumulating roller 51 by the air blowing device 90. By blowing air, the movement of the spun yarn Y wound around the yarn accumulating roller 51 can be controlled. Therefore, disturbance of the spun yarn Y on the yarn accumulating roller 51 is prevented.

  By blowing air toward the base end portion 52a of the yarn storage portion 52, it is possible to suppress the yarn end Yb from rolling on the yarn storage portion 52 and moving toward the distal end portion 52b. Therefore, the yarn end Yb is prevented from being entangled with the spun yarn Y forming the yarn layer Yc.

  As shown in FIG. 5B, in the conventional yarn accumulating device 150, the yarn end Yb swung around the proximal end portion 152a of the yarn accumulating portion 152 of the yarn accumulating roller 151 rolls toward the distal end portion 152b, and the yarn layer Yc May be entangled with the spun yarn Y that forms the yarn. When the yarn end Yb is entangled with the spun yarn Y, the spun yarn Y falls out of the yarn accumulating roller 151 and becomes entangled with the yarn hooking member 161. In the yarn accumulating device 50 of the present embodiment, the spun yarn Y is prevented from slipping out.

  Since an air flow from the front end side to the base end side of the yarn storage portion 52 is created, the yarn end Yb of the spun yarn Y cut on the spinning device 7 side rolls on the yarn storage portion 52 and the front end portion 52b. The yarn end Yb is prevented from being entangled with the spun yarn Y forming the yarn layer Yc. Further, the yarn layer Yc other than the most downstream spun yarn Y to be unwound from the yarn accumulating roller 51 is held at a predetermined position.

  The air blowing device 90 prevents the spun yarn Y from being disturbed on the yarn accumulating portion 52, so that the spun yarn Y is prevented from being entangled. Therefore, the spun yarn Y is prevented from being entangled with the yarn hooking member 61.

  By the cooperation of the air blowing device 90 and the regulating member 71, the yarn end Yb is more reliably prevented from being entangled with the spun yarn Y forming the yarn layer Yc.

  According to the spinning unit 2 of the present embodiment, in the yarn accumulating device 50, the spun yarn Y is prevented from being disturbed on the yarn accumulating roller 51. Therefore, the winding device 12 can wind the spun yarn Y without any trouble. it can.

  Even when the spun yarn Y is cut on the spinning device 7 side, the yarn end Yb of the spun yarn Y is prevented from being entangled with the spun yarn Y formed by the yarn layer Yc. Therefore, the spun yarn Y is prevented from being unwound from the yarn accumulating roller 51 in a loop-out shape.

  The air blowing device 90 blows air toward the yarn accumulating roller 51 when the spun yarn 7 is cut by the spinning device 7, so that the yarn end Yb of the spun yarn Y cut by the spinning device 7 forms a yarn layer Yc. It is possible to more effectively prevent the spun yarn Y from being entangled.

  The air blowing device 90 blows air toward the yarn accumulating roller 51 when the spun yarn Y is broken, so that the yarn end Yb of the spun yarn Y generated by the yarn breakage forms the yarn layer Yc. Is more effectively prevented.

  According to the spinning machine 1 of this embodiment, in each spinning unit 2, the spun yarn Y can be prevented from being disturbed on the yarn accumulating roller 51, and the spun yarn Y can be wound up without any trouble.

  Although one embodiment of the present invention has been described above, the present invention is not limited to the above embodiment. For example, if the spun yarn and the spinning unit of the present invention can supply the spun yarn, such as a yarn feed device configured to supply the spun yarn from the bobbin around which the spun yarn is wound, the other yarn feeding device May be applied.

  When the spinning device is an air spinning device, the spinning device is arranged so as to be held by the fiber guide and protrude into the spinning chamber in order to prevent the twist of the fiber bundle from being transmitted to the upstream side of the spinning device. The needle may be further provided. The spinning device may be one that prevents the twist of the fiber bundle from being transmitted to the upstream side of the spinning device by the downstream end portion of the fiber guide portion instead of such a needle. Furthermore, the spinning device may include a pair of air jet nozzles that twist in opposite directions.

  In the spinning machine 1 and the spinning unit 2, the yarn storage device 50 has a function of extracting the spun yarn Y from the spinning device 7. However, in the spinning machine and the spinning unit of the present invention, the spinning device 7 that generates the spun yarn Y is used. Therefore, the spun yarn may be pulled out by the delivery roller and the nip roller.

  In the spinning machine 1 and the spinning unit 2, the spun yarn Y was cut when the yarn defect was detected by stopping the swirling flow in the spinning device 7. However, in the spinning machine and the spinning unit of the present invention, the yarn defect was detected. The spun yarn may be cut by a cutter. That is, a cutter as a yarn cutting unit may be provided on the upstream side of the yarn storage device 50 (for example, between the spinning device 7 and the yarn storage device 50).

  In the spinning machine 1 and the spinning unit 2, each device is arranged so that the spun yarn Y supplied on the upper side is wound on the lower side. However, in the spinning machine and the spinning unit of the present invention, the lower side is supplied on the lower side. Each device may be arranged so that the spun yarn is wound up on the upper side.

  In the spinning machine 1 and the spinning unit 2, the bottom roller of the draft device 6 and the traverse mechanism of the traverse device 23 are driven by the power from the motor box 5 (that is, common to a plurality of spinning units 2). In this spinning machine and spinning unit, each part of the spinning unit (for example, a draft device, a spinning device, a winding device, etc.) may be driven independently for each spinning unit 2.

  The tension sensor 9 may be disposed on the upstream side of the yarn clearer 8 in the traveling direction of the spun yarn Y. The unit controller 10 may be provided not for each spinning unit 2 but for each of the plurality of spinning units 2. The waxing device 11, the tension sensor 9 and the yarn clearer 8 may not be provided in the spinning unit 2. The winding device 12 may be driven not by a drive motor provided for each spinning unit 2 but by a drive source provided in common for the plurality of spinning units 2. In this case, when the package P is rotated in the reverse direction, the cradle arm 21 is moved by an air cylinder (not shown) so that the package P is separated from the take-up drum 22, and the reverse rotation provided in the yarn splicing cart 3 is performed. The package P is reversely rotated by the use roller (not shown). The yarn clearer 8, the tension sensor 9, the yarn storage device 50, and the waxing device 11 may be directly or indirectly supported by the frame 13 without providing the yarn processing module 80.

  In the above-described embodiment, the unit controller 10 has been described with respect to the case where the air blowing device 90 is on-controlled when the yarn defect detection signal is received and the lower limit storage amount detection signal is received. Absent. The unit controller 10 detects that the yarn breakage has occurred between the yarn accumulating device 50 and the spinning device 7 and controls the air blowing device 90 to be turned on when the lower limit accumulating amount detection signal is received. You can also. According to this, even when the spun yarn Y is cut upstream from the yarn accumulating device 50, the yarn end Yb is prevented from being entangled with the spun yarn Y forming the yarn layer Yc.

  The number of the air blowing devices 90 is not limited to one. As shown in FIG. 12B, the yarn storage device 50 </ b> A in which three air blowing devices 90 </ b> A, 90 </ b> B, and 90 </ b> C are arranged along the circumferential direction of the yarn storage roller 51 may be used. As shown in FIG. 12C, the yarn storage device 50 </ b> B in which four air blowing devices 90 </ b> A, 90 </ b> B, 90 </ b> C, and 90 </ b> D are arranged along the circumferential direction of the yarn storage roller 51 may be used. In this case, the regulating member 71 can be omitted. The air blowing device may be provided over the entire circumference of the yarn accumulating roller 51.

  The air blowing device 90 is not limited to the case where air is blown toward the proximal end portion 52a of the yarn accumulating portion 52. The air blowing device 90 may blow air toward an intermediate portion between the proximal end portion 52a and the distal end portion 52b of the yarn storage portion 52, or may blow air toward the distal end portion 52b. The air blowing device 90 may blow air toward the proximal end side taper portion 53.

  In the yarn storage device 50 of the above embodiment, the regulating member 71 may be omitted.

  DESCRIPTION OF SYMBOLS 1 ... Spinning machine, 2 ... Spinning unit, 7 ... Spinning device, 12 ... Winding device, 50 ... Yarn storage device, 51 ... Yarn storage roller, 52 ... Yarn storage part, 52a ... Base end part, 52b ... Tip part, 71: restriction member, 72: first restriction portion, 73: second restriction portion, 74: third restriction portion, 90: air blowing device, P: package, Y: spun yarn, Yb: yarn end, Yc: yarn layer.

Claims (10)

A yarn accumulating roller around which the spun yarn generated by the spinning device is wound;
An air blowing device that blows air toward the yarn storage roller;
A yarn storage device comprising:   2. The yarn storage according to claim 1, wherein the air blowing device is disposed so as to blow air toward a base end portion of the yarn storage roller that is a winding start side of the spun yarn. apparatus.   The air blowing device is disposed on a distal end side which is a side where the spun yarn is unwound in a radial outside of the yarn accumulating roller and in a rotation axis direction of the yarn accumulating roller. The yarn storage device according to 1 or 2.   4. The yarn storage roller according to any one of claims 1 to 3, further comprising a yarn hooking member that is provided on a tip end side that is a side on which the spun yarn is unwound in the yarn accumulating roller and hooks the spun yarn. The yarn storage device according to the description.   The spinning which is arranged so as to face the base end portion of the yarn accumulating roller which is the winding start side of the spun yarn, and is swung on the base end portion side when the spun yarn is cut on the spinning device side 2. The apparatus according to claim 1, further comprising a regulating unit that regulates movement of the yarn end of the yarn toward the tip side prior to unwinding of the spun yarn from the tip side of the yarn accumulating roller. The yarn accumulating device according to any one of 4. The spinning device for producing the spun yarn; and
The yarn accumulating device according to any one of claims 1 to 5,
A winding device for winding the spun yarn unwound from the yarn storage device into a package;
A spinning unit comprising:   The spinning unit according to claim 6, further comprising a yarn cutting unit that is disposed upstream of the yarn accumulating device with respect to a traveling direction of the spun yarn and that cuts the spun yarn.   The spinning unit according to claim 7, wherein the air blowing device blows air toward the yarn accumulating roller when the spun yarn is cut by the yarn cutting unit.   The spinning unit according to any one of claims 6 to 8, wherein the air blowing device blows air toward the yarn accumulating roller when yarn breakage of the spun yarn occurs.   A spinning machine comprising a plurality of spinning units according to any one of claims 6 to 9.

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