JP2013067874A - Spinning unit and spinning device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a spinning unit that is capable of suitably guiding a spun yarn to a yarn storage roller and capable of controlling a movement of a yarn end of the spun yarn in the case where the spun yarn is cut, and to provide a spinning machine including a plurality of such spinning units.SOLUTION: The spinning unit includes: a yarn supplying apparatus for supplying a spun yarn Y; a winder for winding the spun yarn Y into a package; a yarn storage apparatus 50 for storing the spun yarn Y between the yarn supplying apparatus and the winder; a yarn movement control member 75 that is arranged between the yarn supplying apparatus and the yarn storage apparatus 50 and has a function for applying tension to the spun yarn Y and guiding the spun yarn Y to the yarn storage apparatus 50, and a function for regulating a movement of a yarn end of the spun yarn Y from departing from a thread guide of the spun yarn Y guided by the yarn storage apparatus 50 toward the side of the yarn storage apparatus 50, when the spun yarn is cut at a side of the yarn supplying apparatus.

Description

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

  As a conventional spinning unit, a spun yarn is wound around a yarn storage roller between a yarn feeding device that supplies spun yarn, a winding device that winds the spun yarn around a package, and the yarn feeding device and the winding device. A yarn storage device that stores spun yarn is known (for example, see Patent Document 1). In such a spinning unit, a guide member for appropriately guiding the spun yarn to the yarn accumulating roller may be disposed on the yarn feeding device side with respect to the yarn accumulating roller of the yarn accumulating device (for example, a patent Reference 2).

JP 2010-174421 A JP 2011-37572 A

  As described above, the guide member is disposed on the yarn supplying device side with respect to the yarn accumulating roller of the yarn accumulating device, and appropriately guiding the spun yarn to the yarn accumulating roller causes the spinning unit to operate smoothly. Because it is extremely important above. In addition, when the spun yarn is cut, if the spun yarn end can be prevented from moving to an unexpected part of the yarn accumulating roller, the spinning unit can be operated smoothly thereafter.

  Accordingly, the present invention provides a spinning unit capable of appropriately guiding the spun yarn to the yarn accumulating roller and controlling the movement of the yarn end of the spun yarn when the spun yarn is cut, and such a spinning unit. An object of the present invention is to provide a spinning machine including a plurality of spinning units.

  The spinning unit of the present invention includes a yarn supplying device that supplies spun yarn, a winding device that winds the spun yarn into a package, a yarn storage device that stores the spun yarn between the yarn supplying device and the winding device, It is arranged between the yarn feeding device and the yarn accumulating device, and provides a function for applying tension to the spun yarn to guide the spun yarn to the yarn accumulating device, and when the spun yarn is cut on the yarn feeding device side. A yarn operation control member having a function of restricting movement of the yarn end from the yarn path of the spun yarn guided by the yarn storage device to the yarn storage device side.

  In this spinning unit, the spun yarn to which tension is applied is guided to the yarn accumulating device by the yarn operation control member. Further, when the spun yarn is cut on the yarn supplying device side, the yarn operation control member moves the yarn end of the spun yarn off the yarn path of the spun yarn guided to the yarn accumulating device and moves to the yarn accumulating device side. To be regulated. Therefore, according to this spinning unit, the spun yarn can be properly guided to the yarn accumulating roller, and the movement of the yarn end of the spun yarn when the spun yarn is cut can be controlled.

  The yarn operation control member includes a guide function unit that applies tension to the spun yarn and guides the spun yarn to the yarn storage device, and the spun yarn ends when the spun yarn is cut on the yarn feeding device side. A regulation function unit that regulates movement from the yarn path of the spun yarn guided by the storage device to the yarn storage device side, and the guide function unit travels from the yarn feeding device to the yarn operation control member. The extension line of the yarn path of the spun yarn is arranged so as to be positioned between the guide function part and the yarn storage device, and the regulation function part is located on the opposite side of the extension line of the yarn path with respect to the guide function part. It may be arranged to do. By arranging the guide function section and the regulation function section in this way, both the function of guiding the spun yarn and the function of regulating the movement of the yarn end of the spun yarn can be effectively exhibited by the yarn motion control member. .

  The yarn storage device includes a yarn storage roller around which the spun yarn is wound, and a yarn hooking member that is provided on the winding device side with respect to the yarn storage roller and hooks the spun yarn and winds it around the yarn storage roller. Also good. According to this configuration, the spun yarn can be stably wound around the yarn accumulating roller by the cooperation of the guide function portion of the yarn operation control member and the yarn hooking member.

  The yarn operation control member further includes a guide unit that guides the spun yarn to the guide function unit from the side where the regulation function unit is positioned with respect to the extension line of the yarn path at the start of winding of the spun yarn around the yarn storage roller. You may have. According to this configuration, the guide of the spun yarn to the guide function unit can be ensured.

  Further, the guide portion may be a notch portion formed in the yarn operation control member so as to follow the rotation direction of the yarn hooking member at the start of winding of the spun yarn around the yarn accumulating roller. According to this configuration, the spun yarn can be smoothly guided to the guide function portion at the start of winding of the spun yarn around the yarn accumulating roller by the cooperation of the guide portion formed as the notch and the yarn hooking member. it can.

  The yarn operation control member may further include a restricting portion that restricts movement of the spun yarn from the guide function portion in the rotation direction of the yarn accumulating roller when the spun yarn is wound around the yarn accumulating roller. According to this configuration, it is possible to stabilize the application of tension to the spun yarn by the guide function unit and the guide of the spun yarn to the yarn storage device by the guide function unit.

  Moreover, the part which the spun yarn which travels in a guidance function part contacts may consist of ceramics. Ceramic is a material that has low frictional resistance with the spun yarn and less wear, so that tension is applied to the spun yarn by the guide function unit and guide of the spun yarn to the yarn storage device by the guide function unit is further stabilized. Can be

  The spinning unit may further include a spinning sensor that detects a traveling state of the spun yarn between the yarn feeding device and the yarn operation control member. According to this configuration, since the tension and traveling path of the spun yarn are stabilized by the yarn operation control member, the traveling state of the spun yarn can be detected stably and accurately.

  The spinning unit may further include a guide member that guides the spun yarn to a predetermined detection position of the spinning sensor between the spinning sensor and the yarn operation control member. According to this configuration, the guide of the spun yarn to the spinning sensor can be ensured.

  Further, the spinning sensor may be a tension measuring device that measures the tension of the spun yarn as the running state. According to this configuration, the tension of the traveling spun yarn can be measured stably and accurately.

  Further, the yarn supplying device may include a draft device that drafts the fiber bundle and a spinning device that generates a spun yarn by twisting the fiber bundle. According to this configuration, high-quality spun yarn can be supplied efficiently.

  The spinning device may be an air spinning device that generates a spun yarn by twisting a fiber bundle by a swirling flow of air. According to this configuration, higher quality spun yarn can be supplied more efficiently.

  The spinning machine of the present invention includes a plurality of the spinning units described above.

  As described above, this spinning machine has a spinning unit that can appropriately guide the spun yarn to the yarn accumulating roller and can control the movement of the yarn end of the spun yarn when the spun yarn is cut. Since a plurality of packages are provided, a high-quality package can be generated efficiently.

  According to the present invention, the spun yarn can be properly guided to the yarn accumulating roller, and the movement of the yarn end of the spun yarn when the spun yarn is cut can be controlled.

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 thread | yarn storage apparatus at the time of a thread | yarn defect detection. It is a side view of the spinning unit at the time of detecting a yarn defect. It is a side view of the spinning unit at the time of detecting a yarn defect. It is a side view of the spinning unit at the time of yarn breakage. It is a perspective view of the thread | yarn storage apparatus at the time of a thread break. It is the figure which looked at the yarn operation control member of the spinning unit of FIG. 2 from the yarn storage device side.

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.
[Configuration of spinning machine and spinning unit]

  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, a swirl flow, or the like 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 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 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 drafting device (yarn feeding device) 6, a spinning device (yarn feeding device) 7, and a yarn clearer (yarn defect detecting device). 8, 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). 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 is a device that stretches the sliver S to generate a fiber bundle F (that is, the fiber bundle F is a draft), and a back roller pair 14, a third roller pair 15, and an apron belt 16 are suspended. Further, a middle roller pair 17 and a front roller pair 18 are provided. The bottom rollers of each of the roller pairs 14, 15, 17, 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 is configured to detect, for example, an abnormal thickness of the spun yarn Y and foreign matter contained in the spun yarn Y as yarn defects. 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 winding device 12 is a device that winds the spun yarn Y around the package P to form a fully wound package P, and 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 the surface of a bobbin B or a package P (that is, the one in which the spun yarn Y is wound around the bobbin B) is rotatably supported. Contact the surface of the plate with 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 that are in contact with the winding drum 22. 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.
[Configuration of yarn storage device]

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

  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 proximal end side taper portion 53 widens toward the upstream side from the proximal end portion 52 a on the winding start side 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. 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 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. The yarn hooking member 61 includes a flyer shaft 62 and a flyer 63. ing. 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 an elevated position. Here, 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 is located on the upstream side of the suction port 66a in the rotational direction of the yarn storage roller 51 when the spun yarn Y is wound, and the second restricting portion 73 is disposed on the suction port 66a in the rotational direction. Located downstream. The 1st control part 72 and the 2nd control part 73 are arrange | positioned so as to oppose the base end part 52a of the yarn storage part 52, and when the spun yarn Y is cut | disconnected by the spinning device 7 side, the yarn storage part 52 is arranged. The yarn end of the spun yarn Y swung on the base end portion 52a side of the yarn moves toward the tip end portion 52b side of the yarn storage portion 52 prior to the unwinding of the spun yarn Y from the tip end portion 52b side of the yarn storage portion 52. To regulate. The third restricting portion 74 is disposed so as to face the yarn accumulating portion 52, and when the spun yarn Y is cut on the winding device 12 side, the spun yarn is swung around on the front end portion 52b side of the yarn accumulating portion 52. The Y yarn end is restricted from moving toward the base end portion 52 a side of the yarn storage portion 52 prior to the unwinding of the spun yarn Y from the base end portion 52 a side of the yarn storage portion 52. The upper limit side yarn accumulation amount sensor 57 is attached to the lower end portion of the regulating member 71.

  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 regulation function unit 77 moves away from the yarn path of the spun yarn Y guided by the yarn accumulating device 50 to the yarn accumulating device 50 side. Restrict movement.

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. On the other hand, 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. At the same time, the trajectory of the spun yarn Y swung around by the rotating yarn hooking member 61 is regulated, and the traveling of the spun yarn Y downstream of the second guide member 79 is stabilized.
[Operation of yarn storage device]

  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. Here, when the storage amount of the spun yarn Y wound around the yarn storage roller 51 exceeds 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 Slip or the like hardly occurs with the spun yarn Y. 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).

When the spun yarn Y is wound around the yarn accumulating roller 51 and the tension of the spun yarn Y on the winding device 12 side is increased, the yarn hooking member 61 attempts to rotate relative to the yarn accumulating roller 51. A force (that is, a force for stopping the 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. On the contrary, 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. The spun yarn Y is wound around the yarn storage 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.
[Operation of spinning unit when detecting yarn defects]

  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.

  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.

  When the winding device 12 winds up the package P to the end of the cut spun yarn Y, the unit controller 10 sends a control signal indicating the spun unit 2 from which the spun yarn Y has been cut to the yarn splicing carriage 3. Send. Thereby, the yarn joining cart 3 travels to the front of the spinning unit 2 and starts the yarn joining operation.

  First, as shown in FIG. 5, 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. 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. 6, 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.

  On the other hand, as shown in FIG. 5, 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. 6, 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 will be 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.
[Operation of spinning unit when yarn breaks]

  Next, the operation of the spinning unit 2 when the yarn is broken will be described. As shown in FIG. 7, in the spinning unit 2, the spun yarn Y is cut downstream of the yarn accumulating device 50 when the spun yarn Y is generated and wound around the package P. 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 yarn end of the spun yarn Y that has been cut is wound around the yarn accumulating roller 51 and swung around on the base end portion 52 a 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 fiber waste at the upstream yarn end 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 on the upstream side of the spun yarn Y wound around the yarn accumulating roller 51 is restricted by the second restricting portion 73 of the restricting member 71 toward the tip end portion 52 b of the yarn accumulating portion 52. Therefore, as shown in FIG. 8, the upstream yarn end 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.
[Configuration of Yarn Operation Control Member and First Guide Member]

  Next, the configuration of the yarn operation control member 75 and the first guide member (guide member) 78 will be described in more detail. As shown in FIGS. 3 and 9, the yarn operation control member 75 includes a fixing portion 91, a standing portion 92, and a main body portion 93. The fixing portion 91 is fixed to the lower surface 9a of the tension sensor 9 on one side with respect to the yarn path. The standing portion 92 rises from the fixed portion 91 to the yarn accumulating roller 51 side. The main body 93 extends from the standing portion 92 to the yarn path side. The fixing portion 91, the standing portion 92, and the main body portion 93 are integrally formed of a plate material 90 made of metal.

  The front portion of the fixing portion 91 is provided with an upright portion 91a that rises toward the tension sensor 9 from one end with respect to the yarn path. Furthermore, a guide groove 91b that opens to the rear side is formed at the rear end of the fixed portion 91. The yarn operation control member 75 is positioned by bringing the upright portion 91b into contact with the side surface 9b of the tension sensor 9 on one side with respect to the yarn path, and in this state, the guide groove 91b is inserted into the guide groove 91b. It is fixed to the lower surface 9 a of the tension sensor 9 by a passing bolt 94.

  The rear portion of the main body 93 is a guide function unit 76 that applies tension to the spun yarn Y and guides the spun yarn Y to the proximal end taper portion 53 of the yarn accumulating roller 51. On the other hand, the front portion of the main body 93 is separated from the yarn path of the spun yarn Y guided by the yarn storage device 50 when the spun yarn Y is cut on the spinning device 7 side ( That is, the restriction function unit 77 restricts the movement of the spun yarn Y guided by the guide function unit 76 to the yarn storage device 50 toward the yarn storage device 50 side. Accordingly, the guide function unit 76 starts from the front side (see FIG. 2) where the extension line of the yarn path of the spun yarn Y traveling from the spinning device 7 to the yarn motion control member 75 is positioned with respect to the yarn storage device 50. Will be in contact. Then, the restriction function unit 77 is positioned further to the front side than the guidance function unit 76. That is, the guide function unit 76 is arranged so that the extension line of the yarn path of the spun yarn Y traveling from the spinning device 7 to the yarn operation control member 75 is located between the guide function unit 76 and the yarn storage device 50. The restriction function part 77 is arranged so as to be located on the opposite side of the extension line of the yarn path with respect to the guide function part 76.

  Further, the main body portion 93 is formed with a second notch portion (guide portion) 93a that is notched so as to spread from the end portion on the other side to the front side with respect to the yarn path. The second notch portion 93 a is formed in the yarn operation control member 75 so as to follow the rotation direction of the yarn hooking member 61 at the start of winding the spun yarn Y around the yarn accumulating roller 51. Thereby, the second notch 93a is restricted with respect to the extension line of the yarn path of the spun yarn Y traveling from the spinning device 7 to the yarn operation control member 75 at the start of winding of the spun yarn Y around the yarn accumulating roller 51. The spun yarn Y is guided to the guide function unit 76 from the side where the function unit 77 is located (here, the front side). Furthermore, the main body portion 93 is provided with a protruding portion (regulating portion) 93b that protrudes rearward from the end portion on the other side with respect to the yarn path. The protrusion 93 b restricts the spun yarn Y from moving in the rotational direction of the yarn accumulating roller 51 from the guide function unit 76 when the spun yarn Y is wound around the yarn accumulating roller 51.

  A ceramic plate 95 having a through hole 95a is attached to the upper surface of the main body 93 (that is, the surface facing the lower surface 9a of the tension sensor 9). The ceramic plate 95 is positioned by fitting a convex portion 93c provided on the upper surface of the main body portion 93 into the through hole 95a, and is fixed to the upper surface of the main body portion 93 by adhesion in such a positioned state. ing. In the ceramic plate 95, the spun yarn Y comes into contact with a portion 95b having a shape corresponding to the corner formed by the guide function portion 76 and the protruding portion 93b when the spun yarn Y is wound around the yarn accumulating roller 51. . That is, the portion 95b where the spun yarn Y that travels in the guide function portion 76 contacts is made of ceramic.

The first guide member 78 is fixed to the lower surface 9 a of the tension sensor 9 on the opposite side of the yarn path from the yarn operation control member 75. A convex part 78 a is provided on the upper surface of the rear end part of the first guide member 78. The first guide member 78 is positioned by the convex portion 78a being brought into contact with the rear surface 9c of the tension sensor 9, and in such a state, the first guide member 78 is fixed to the lower surface 9a of the tension sensor 9 by the bolt 96. Yes. The first guide member 78 is formed with a first notch 78b that is notched so as to spread from the end on the yarn path side toward the front side. The first notch 78b is spun from a slit formed in the casing of the tension sensor 9 to a predetermined detection position of the tension sensor 9 disposed in the casing between the tension sensor 9 and the yarn motion control member 75. It functions as a guide for guiding the yarn Y.
[Operation and effect of spinning machine and spinning unit]

  As described above, in the spinning unit 2, the spun yarn Y to which tension is applied is guided to the yarn storage roller 51 of the yarn storage device 50 by the guide function unit 76 of the yarn operation control member 75. As a result, even if the spun yarn Y is a yarn type having a low tension, the spun yarn Y is stably held by the yarn accumulating roller 51 by the cooperation of the guide function portion 76 of the yarn operation control member 75 and the yarn hooking member 61. Can be wound. Further, when the spun yarn Y is cut on the spinning device 7 side, the yarn function of the spun yarn Y is guided to the yarn accumulating device 50 by the restriction function unit 77 of the yarn operation control member 75. Moving from the road to the yarn storage device 50 side is restricted. As a result, the yarn end of the spun yarn Y is entangled with the spun yarn Y wound around the yarn accumulating roller 51, or the yarn end of the spun yarn Y cut in a high tension state passes over the yarn accumulating roller 51. It is possible to prevent the member 61 from being entangled. As described above, according to the spinning unit 2, the spun yarn Y can be appropriately guided to the yarn accumulating roller 51, and the movement of the yarn end of the spun yarn Y when the spun yarn Y is cut can be controlled. it can.

  The guide function unit 76 is arranged so that the extension line of the yarn path of the spun yarn Y traveling from the spinning device 7 to the yarn operation control member 75 is located between the guide function unit 76 and the yarn storage device 50. The restriction function part 77 is arranged so as to be located on the opposite side of the extension line of the yarn path with respect to the guide function part 76. By arranging the guide function unit 76 and the regulation function unit 77 in this way, both the function of guiding the spun yarn Y and the function of regulating the movement of the yarn end of the spun yarn Y are effectively provided to the yarn operation control member 75. It can be demonstrated.

  In addition, the yarn operation control member 75 has a function of regulating the extension line of the yarn path of the spun yarn Y traveling from the spinning device 7 to the yarn operation control member 75 at the start of winding of the spun yarn Y around the yarn accumulating roller 51. It has the 2nd notch part 93a which guides the spun yarn Y to the guidance function part 76 from the side in which the part 77 is located. Thereby, the guide of the spun yarn Y to the guide function part 76 can be ensured.

  The second notch 93a is formed in the yarn operation control member 75 so as to follow the rotation direction of the yarn hooking member 61 at the start of winding of the spun yarn Y around the yarn accumulating roller 51. Therefore, by cooperation of the second notch portion 93a and the yarn hooking member 61, the spun yarn Y can be smoothly guided to the guide function portion 76 at the start of winding of the spun yarn Y around the yarn accumulating roller 51.

  Further, the yarn operation control member 75 has a protrusion 93b that restricts the movement of the spun yarn Y from the guide function unit 76 in the rotation direction of the yarn accumulating roller 51 when the spun yarn Y is wound around the yarn accumulating roller 51. Have. Accordingly, it is possible to stabilize the application of tension to the spun yarn Y by the guide function unit 76 and the guide of the spun yarn Y to the yarn storage device 50 by the guide function unit 76.

  In addition, the portion where the spun yarn Y traveling in the guide function portion 76 contacts is made of ceramic. Since the ceramic is a material having low frictional resistance with the spun yarn Y and less wear, the tension is applied to the spun yarn Y by the guide function unit 76 and the spun yarn Y to the yarn storage device 50 by the guide function unit 76. Can be further stabilized.

  Further, the spinning unit 2 includes a tension sensor 9 that measures the tension of the spun yarn Y between the spinning device 7 and the yarn operation control member 75. In the spinning unit 2, since the tension and traveling path of the spun yarn Y are stabilized by the yarn operation control member 75, the tension of the spun yarn Y can be measured stably and accurately.

  Further, the spinning unit 2 includes a first guide member 78 that guides the spun yarn Y to a predetermined detection position of the tension sensor 9 between the tension sensor 9 and the yarn operation control member 75. Thereby, the guide of the spun yarn Y to the tension sensor 9 can be ensured.

  A yarn feeding device for supplying the spun yarn Y is constituted by the draft device 6 and the spinning device 7. Moreover, 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. As a result, high-quality spun yarn Y can be efficiently supplied.

  Further, as described above, the spinning machine 1 can appropriately guide the spun yarn Y to the yarn accumulating roller 51 and controls the movement of the yarn end of the spun yarn Y when the spun yarn Y is cut. Since a plurality of spinning units 2 are provided, a high-quality package P can be generated efficiently.

  Although one embodiment of the present invention has been described above, the present invention is not limited to the above embodiment. For example, in the spinning machine 1 and the spinning unit 2, the yarn supplying device for supplying the spun yarn is configured by the draft device 6 and the spinning device 7, but the spun yarn is wound around the spinning machine and the spinning unit of the present invention. As long as the spun yarn can be supplied, such as a yarn supplying device configured to supply the spun yarn from the bobbin, other yarn supplying devices may be applied.

  When the spinning device is an air spinning device, the spinning device is held by the fiber guide and protrudes 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. Further, the spinning device may prevent 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.

  Further, in the spinning machine 1 and the spinning unit 2, the yarn storage device 50 has a function of drawing the spun yarn Y from the spinning device 7. However, in the spinning machine and the spinning unit of the present invention, the yarn supply for supplying the spun yarn The spun yarn may be pulled out from the apparatus by a delivery roller and a 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 Cutting of the spun yarn at the time of detection may be performed by a cutter.

  Further, 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, on the lower side, Each device may be arranged so that the supplied 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 power from the prime mover box 5 (that is, common to a plurality of spinning units 2). In the spinning machine and the spinning unit of the present invention, 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. Further, the unit controller 10 may be provided not for each spinning unit 2 but for each of the plurality of spinning units 2. Further, the waxing device 11, the tension sensor 9, and the yarn clearer 8 may not be provided in the spinning unit 2. Further, the winding device 12 may be driven by a drive source provided in common to the plurality of spinning units 2 instead of being driven by a drive motor provided for each spinning unit 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). Further, the yarn clearer 8, the tension sensor 9, the yarn storage device 50, and the waxing device 11 may be individually supported directly or indirectly by the frame 13 without providing the yarn processing module 80.

  The spinning machine 1 and the spinning unit 2 include the tension sensor 9 as a spinning sensor that detects the traveling state of the spun yarn between the yarn feeding device and the yarn operation control member. The spinning unit may include other spinning sensors instead of or in addition to such a tension sensor.

  DESCRIPTION OF SYMBOLS 1 ... Spinning machine, 2 ... Spinning unit, 6 ... Draft device (yarn feeding device), 7 ... Spinning device (yarn feeding device), 9 ... Tension sensor (tension measuring device, spinning sensor), 12 ... Winding device, 50 DESCRIPTION OF SYMBOLS ... Yarn storage apparatus, 51 ... Yarn storage roller, 61 ... Yarn hooking member, 75 ... Yarn operation control member, 76 ... Guide function part, 77 ... Restriction function part, 78 ... 1st guide member (guide member), 93a ... 1st 2 notch parts (guide part), 93b ... protrusion part (regulation part), 95 ... ceramic plate, 95b ... part, S ... sliver, Y ... spun yarn, F ... fiber bundle, P ... package.

Claims (13)

A yarn feeder for supplying spun yarn;
A winding device for winding the spun yarn around a package;
A yarn storage device that stores the spun yarn between the yarn feeding device and the winding device;
The yarn feeding device and the yarn accumulating device are disposed between the yarn feeding device and a function of applying tension to the spun yarn to guide the spun yarn to the yarn accumulating device, and the spun yarn is cut on the yarn feeding device side. A yarn operation control member having a function of restricting the yarn end of the spun yarn from moving from the yarn path of the spun yarn guided to the yarn storage device to the yarn storage device side when A spinning unit characterized by comprising. The yarn motion control member is
A guide function unit that applies tension to the spun yarn to guide the spun yarn to the yarn storage device;
When the spun yarn is cut on the yarn supply device side, the yarn end of the spun yarn is prevented from moving from the yarn path of the spun yarn guided by the yarn storage device to the yarn storage device side. A regulation function unit that
The guide function unit is disposed such that an extended line of a yarn path of the spun yarn traveling from the yarn feeding device to the yarn operation control member is positioned between the guide function unit and the yarn storage device. ,
2. The spinning unit according to claim 1, wherein the restricting function part is disposed so as to be located on an opposite side of the extension line of the yarn path with respect to the guide function part. The yarn storage device
A yarn storage roller around which the spun yarn is wound;
The spinning unit according to claim 2, further comprising: a yarn hooking member that is provided on the winding device side with respect to the yarn accumulating roller and hooks the spun yarn and winds the spun yarn around the yarn accumulating roller. The yarn motion control member is
A guide portion for guiding the spun yarn to the guide function portion from a side where the restriction function portion is located with respect to the extension line of the yarn path at the start of winding of the spun yarn around the yarn storage roller; The spinning unit according to claim 3, wherein:   The guide portion is a notch portion formed in the yarn operation control member so as to follow a rotation direction of the yarn hooking member at the start of winding of the spun yarn around the yarn accumulating roller. Item 5. The spinning unit according to item 4. The yarn motion control member is
4. A regulating unit that regulates movement of the spun yarn from the guide function unit in the rotation direction of the yarn accumulating roller when the spun yarn is wound around the yarn accumulating roller. The spinning unit according to any one of to 5.   The spinning unit according to any one of claims 2 to 6, wherein a portion of the guide function portion that is in contact with the spun yarn that travels is made of ceramic.   The spinning unit according to any one of claims 1 to 7, further comprising a spinning sensor that detects a traveling state of the spun yarn between the yarn feeding device and the yarn operation control member.   The spinning unit according to claim 8, further comprising a guide member that guides the spun yarn to a predetermined detection position of the spinning sensor between the spinning sensor and the yarn motion control member.   The spinning unit according to claim 8 or 9, wherein the spinning sensor is a tension measuring device that measures the tension of the spun yarn as the running state. The yarn feeding device includes:
A draft device for drafting fiber bundles;
The spinning unit according to any one of claims 1 to 10, further comprising a spinning device that twists the fiber bundle to generate the spun yarn.   The spinning unit according to claim 11, wherein the spinning device is an air spinning device that generates the spun yarn by twisting the fiber bundle by a swirling flow of air.   A spinning machine comprising a plurality of the spinning units according to any one of claims 1 to 12.

Images