JP2013006674A - Yarn end treating device, bobbin treating device and yarn winding system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a constitution capable of improving the success ratio of capturing the yarn end in a pick finding device.SOLUTION: This yarn end treating device 11 includes a bobbin rotating mechanism 24, and a blowing nozzle 27. The bobbin rotating mechanism 24 rotates a yarn feeding bobbin 15. The blowing nozzle 27 jets air along a surface of the yarn feeding bobbin 15 toward an end part of the yarn feeding bobbin 15. The yarn end treating device 11 jets the air by the blowing nozzle 27 while rotating the yarn feeding bobbin 15 in the yarn winding direction. By this constitution, back wind yarn 22 is blown up by jetting air from the blowing nozzle 27, and is wound on an end part of a rotating bobbin tube 21. Thus, by winding yarn on the end part of the bobbin tube 21, the yarn of the yarn feeding bobbin 15 can be easily captured in a post-process.

Description

  The present invention mainly relates to yarn end processing in a yarn end processing apparatus.

  Conventionally, a bobbin processing unit as disclosed in Patent Document 1 is known. The bobbin processing unit described in Patent Document 1 includes a yarn end processing device that cuts a backwind yarn wound around a yarn supplying bobbin to form a yarn end.

  Further, the bobbin processing device described in Patent Document 1 is provided with a mouthing device that performs a process (a mouthing process) for drawing the yarn end of the backwind yarn formed by the yarn end treating device into the bobbin tube.

JP 2008-247517 A

  The lead-out device is configured to suck and capture the yarn end of the backwind yarn formed by the yarn end processing device. However, in the conventional yarn end processing apparatus, since the yarn end after the backwind yarn is cut is in a free state, it is not known where the yarn end is on the outer periphery of the yarn supplying bobbin. Therefore, in order to suck and capture the yarn end, a suction flow must be applied to the entire outer peripheral surface of the yarn feeding bobbin.

  In this regard, the lead device described in Patent Document 1 includes a cylindrical body configured to be slidable up and down. The cylindrical body is connected to a suction pipe, is configured to generate a suction air flow therein, and is disposed at a position immediately above the yarn feeding bobbin. Then, by lowering the cylinder and generating a suction flow in a state where the yarn supply bobbin is covered by the cylinder, the suction flow is applied to the entire outer peripheral surface of the yarn supply bobbin, and the yarn of the backwind yarn is obtained. It is configured to suck and capture the end.

  However, the configuration in which the suction flow is applied to the entire outer peripheral surface of the yarn supplying bobbin is not only inefficient, but often fails to capture the yarn end.

  The present invention has been made in view of the above circumstances, and a main object thereof is to provide a configuration capable of improving the success rate of yarn end catching in the lead-out device.

Means and effects for solving the problems

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

  According to a first aspect of the present invention, a yarn end processing apparatus having the following configuration is provided. That is, the yarn end processing apparatus includes a bobbin rotating mechanism and a spray nozzle. The bobbin rotating mechanism rotates the yarn supplying bobbin. The spray nozzle ejects air toward the end of the yarn supplying bobbin along the surface of the yarn supplying bobbin. Then, the yarn end processing device ejects air from the spray nozzle while rotating the yarn supplying bobbin in a direction in which the yarn is wound.

  With this configuration, the yarn end on the surface of the yarn supplying bobbin is blown up by the air blown from the blowing nozzle, and is wound around the end portion of the rotating bobbin. By winding the yarn around the end of the bobbin in this way, the yarn of the yarn feeding bobbin can be easily captured in the outlet device in the subsequent process.

  In the above-described yarn end processing apparatus, it is preferable that a flat portion is formed at the ejection side end of the spray nozzle.

  Accordingly, air can be blown over a wide range of the surface of the yarn supplying bobbin, so that the yarn on the surface of the yarn supplying bobbin can be easily blown up.

  In the above-described yarn end processing apparatus, it is preferable that the spray nozzle is a tubular body, and a bent portion is formed at an intermediate portion in the longitudinal direction.

  By forming the spray nozzle by bending it in this way, it becomes easy to dispose the spray nozzle so as to eject air in an appropriate direction.

  In the above-described yarn end processing apparatus, it is preferable that a longitudinal opening direction of the flat portion is a direction orthogonal to a bending direction of the bent portion.

  Thereby, air can be ejected along the inclination of the shoulder portion of the yarn supplying bobbin, so that the yarn on the surface of the yarn supplying bobbin can be easily blown up.

  In the above-described yarn end processing device, it is preferable that the spray nozzle ejects air toward a small diameter side of the yarn feeding bobbin.

  Thereby, a thread | yarn can be wound around the small diameter side edge part of a bobbin pipe | tube. The portion of the yarn wound around the small diameter side of the bobbin tube can be easily extracted from the bobbin tube in a later step.

  According to the 2nd viewpoint of this invention, the bobbin processing apparatus of the following structures is provided. In other words, the bobbin processing device includes the above-described yarn end processing device and a spout device that performs spouting of the yarn feeding bobbin processed by the yarn end processing device. The bobbin processing device performs processing by the yarn end processing device and the spout device on the supplied yarn supplying bobbin and sequentially supplies the processed yarn to the yarn winding device.

  In this bobbin processing device, since the yarn is wound around the end of the bobbin by the yarn end processing device, it is possible to improve the reliability of the spout processing in the spout device. Therefore, the processing efficiency of the entire bobbin processing device can be improved.

  According to a third aspect of the present invention, the above-described bobbin processing device, a bobbin supply unit that supplies a yarn feeding bobbin to the bobbin processing device, and a yarn feeding bobbin that has been subjected to predetermined processing by the bobbin processing device. A yarn winding system including a yarn winding device that winds a yarn is provided.

  Since the processing efficiency of the bobbin processing device can be improved by the yarn end processing device, the productivity of the entire yarn winding system can be improved.

1 is a schematic plan view of an automatic winder system according to an embodiment of the present invention. The figure explaining the bunch winding formed in the yarn feeding bobbin. The perspective view of a yarn end processing apparatus. The side view of a yarn end processing apparatus. The top view which looked at the spray nozzle from the jet nozzle side. The enlarged side view which shows a mode that the front end side winding part was formed.

  Next, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a schematic plan view of an automatic winder system (yarn winding system) 1 including a bobbin processing device 3 according to this embodiment.

  The automatic winder system 1 includes an automatic winder (yarn winding device) 2, a bobbin processing device 3, and a bobbin supply device (bobbin supply unit) 4.

  The automatic winder 2 includes a plurality of winding units 5 arranged side by side. Each winding unit 5 has a known configuration in which a spun yarn is unwound from a yarn supplying bobbin around which the spun yarn is wound, and wound around the winding bobbin to form a package. The automatic winder 2 is provided with a supply path 6 for automatically conveying the yarn feeding bobbin to each winding unit 5. Further, the automatic winder 2 is formed with a collection path 7 for conveying empty bobbins discharged from each winding unit 5.

  The supply path 6 and the recovery path 7 are configured by a belt conveyor or the like, and are configured to be able to transport the transport tray. As shown in FIG. 2, the transport tray 14 is configured so that the yarn feeding bobbin 15 can be placed in a substantially upright state.

  The yarn feeding bobbin 15 is obtained by winding the spun yarn generated in the spinning machine in the previous process around the bobbin tube 21. The bobbin tube 21 is formed with a slight taper, and the end portion on the small diameter side may be called the tip portion 21a and the end portion on the large diameter side may be called the root portion 21b. In the spinning machine, the spun yarn is wound up from the large diameter side to the small diameter end side of the bobbin tube 21. The yarn feeding bobbin 15 generated by the spinning machine is transported to the bobbin supplying device 4 and is put into the bobbin supplying device 4. The bobbin supply device 4 is configured to place the supplied yarn supplying bobbins 15 one by one on the transport tray 14 in a substantially upright state. The bobbin supply device 4 includes a bobbin chute 9 for placing the yarn feeding bobbin 15 on the transport tray 14.

  The bobbin processing device 3 is disposed between the bobbin supply device 4 and the automatic winder 2. Since the bunch winding is formed on the yarn supplying bobbin 15 supplied from the bobbin supplying device 4, the yarn cannot be unwound in the automatic winder 2 as it is. Therefore, the bobbin processing device 3 is configured to appropriately perform an appropriate treatment on the yarn feeding bobbin supplied from the bobbin supply device 4 in advance.

  Here, bunch winding will be briefly described. That is, the yarn supplying bobbin 15 in a state where the yarn is wound up from the large diameter side to the small diameter side of the bobbin tube 21 is free at the yarn end. Therefore, in the yarn feeding bobbin 15 in this state, the yarn comes out when the yarn feeding bobbin 15 is transported from the spinning machine to the bobbin supplying device 4 and the yarn feeding bobbins 15 may be entangled with each other. Therefore, as shown in FIG. 2, a bunch winding is formed on the surface of the yarn layer of the yarn feeding bobbin 15 so that the yarn is spirally wound from the small diameter side toward the large diameter side and is further wound around the root portion 21b of the bobbin tube 21. Keep it. As a result, the yarn end is no longer free, so that the yarn can be prevented from coming out of the yarn feeding bobbin 15 being conveyed. A portion of the yarn wound around the surface of the yarn layer of the yarn supplying bobbin 15 spirally from the small diameter side to the large diameter side is wound on the backwind yarn 22 and the root portion 21b of the bobbin tube 21. The yarn is referred to as a bottom bunch 23.

  In the bobbin processing device 3, a conveyance path 8 for conveying the conveyance tray 14 is formed. This conveyance path 8 is constituted by a belt conveyor or the like. As shown in FIG. 1, the transport path 8 is configured to connect the supply path 6 and the recovery path 7 of the automatic winder 2. A bunch unwinding device 10 for performing bunch winding and unwinding, a yarn end processing device 11 for performing yarn end processing, and an unloading device 12 for performing output processing are disposed in the middle of the conveyance path 8. ing.

  Further, the bobbin processing device 3 includes a control unit for controlling each component included in the bobbin processing device 3.

  The flow of the transport tray 14 in this automatic winder system will be described as follows.

  The bobbin processing device 3 includes bobbin sensors for detecting the presence / absence of a yarn feeding bobbin at various locations on the conveyance path 8. Further, the bobbin processing device 3 includes tray sensors for detecting the presence or absence of the transport tray at various locations on the transport path 8. In the following description, the bobbin sensor and the tray sensor may be collectively referred to simply as “sensor”.

  For example, when an empty transport tray 14 (a transport tray on which no bobbin is placed) reaches a position 16 immediately below the bobbin chute 9, the empty transport tray 14 is detected by the sensor. In this case, the control unit operates the bobbin chute 9 to place one yarn feeding bobbin 15 on the empty transport tray 14 in a substantially upright state.

  The conveyance tray 14 on which the yarn feeding bobbin 15 is placed by the bobbin chute 9 is conveyed along the conveyance path 8 toward the bunch unwinding device 10 on the downstream side. When the sensor detects that the yarn feeding bobbin 15 (and the transport tray 14) has reached the front position 17 of the bunch unwinding device 10, the control unit operates the bunch unwinding device 10 to move the yarn feeding bobbin 15 to the yarn feeding bobbin 15. The formed bottom bunch 23 is removed.

  More specifically, the bunch unwinding device 10 includes a bobbin rotating mechanism for rotating the yarn feeding bobbin 15, a suction mechanism for sucking the bottom bunch 23, and a cutting mechanism for cutting the yarn sucked by the suction mechanism. I have. The bunch unwinding device 10 rotates the yarn supplying bobbin 15 in the direction in which the yarn is unwound (unwinding direction) by the bobbin rotating mechanism. Before and after this, the bunch unwinding device 10 generates a suction air flow in the vicinity of the root portion 21b of the bobbin tube 21 by the suction mechanism. Thereby, the bottom bunch 23 wound around the root portion 21b is unwound and sucked by the suction mechanism. The bunch unwinding device 10 cuts the sucked yarn by the cutting mechanism. Thus, the bottom bunch 23 formed on the yarn feeding bobbin 15 can be removed.

  The yarn feeding bobbin 15 from which the bottom bunch 23 is removed is further conveyed on the conveying path 8 toward the yarn end processing device 11 on the downstream side. When the sensor detects that the yarn feeding bobbin 15 (and the transport tray 14) has reached the front position 18 of the yarn end processing device 11, the control unit operates the yarn end processing device 11 to The backwind yarn 22 wound around the surface of the yarn layer is cut to form a tip side winding portion (described later).

  The yarn supplying bobbin 15 formed with the leading end side winding portion is further conveyed along the conveying path 8 toward the outlet device 12 on the downstream side. When the sensor senses that the yarn feeding bobbin 15 (and the transport tray 14) has reached the front position 19 of the spouting device 12, the controller operates the spouting device 12 to form the yarn end processing device 11. The tip side winding portion is sucked upward. Then, the spouting device 12 inserts the sucked thread into the bobbin tube 21 (sucking). By extracting the yarn end in this manner, the yarn end of the yarn feeding bobbin 15 can be easily captured in the winding unit 5, and the winding of the yarn in the winding unit 5 can be started smoothly. be able to.

  The spouted yarn feeding bobbin 15 (and the transport tray 14) is transported further downstream in the transport path 8 and supplied to the supply path 6 of the automatic winder 2. The yarn feeding bobbin 15 (and the transport tray 14) is transported through the supply path 6 and supplied to any one of the winding units 5.

  In the winding unit 5, the yarn is unwound from the yarn supplying bobbin 15, and the unwound yarn is wound on the package. The transport tray 14 loaded with the bobbin tube 21 (empty bobbin) from which all the surrounding yarn has been unwound is ejected from the winding unit 5 and returned again to the transport path 8 of the bobbin processing device 3 through the recovery path 7. .

  A bobbin probe 13 is disposed on the upstream side of the bobbin chute 9 in the conveyance path 8. The bobbin probe 13 is a device for extracting an empty bobbin placed on the conveyance tray 14 that has returned from the collection path 7 to the conveyance path 8. When the sensor detects that the transport tray 14 on which the empty bobbin is placed has reached the position 20 directly below the bobbin probe 13, the control unit operates the bobbin probe 13 to extract the empty bobbin from the transport tray 14.

  Next, the yarn end processing apparatus 11 of this embodiment will be described with reference to FIGS. 3 and 4.

  The yarn end processing device 11 includes a bobbin rotating mechanism 24, a searcher 25, a pressing member 26, and a spray nozzle 27. In addition, what is shown with the code | symbol 8a in a figure is the round belt of the round belt conveyor which comprises the conveyance path 8. FIG. The transport tray 14 is transported on a circular belt 8a that is driven to circulate.

  The bobbin rotating mechanism 24 includes three rollers that can contact the outer periphery of the transport tray 14. Two of the three rollers are driven rollers 28 and 28, and one is a driving roller 29.

  Either one or both of the driven rollers 28 is configured to be movable in a direction in which the driven roller 28 contacts or separates from the outer periphery of the transport tray 14 transported in the transport path 8. By bringing the driven roller 28 into contact with the outer periphery of the transport tray 14, as shown in FIG. 3, it is possible to contact the transport tray 14 by three points of two driven rollers 28 and a driving roller 29. The transport tray 14 to be transported can be stopped at a predetermined position (specifically, the front position 18 of the yarn end processing device 11).

  The bobbin rotating mechanism 24 includes a stepping motor 30 as a drive source for rotating the yarn feeding bobbin 15. The output shaft of the stepping motor 30 is connected to the rotation shaft of the drive roller 29. The transport tray 14 can be rotated by rotating the drive roller 29 by the stepping motor 30 with the drive roller 29 and the driven roller 28 in contact with the transport tray 14. Thereby, the yarn supplying bobbin 15 placed on the transport tray 14 can be rotated around the axis of the yarn supplying bobbin 15.

  The holding member 26 is configured to come into contact with the tip end portion 21 a of the bobbin pipe 21 of the yarn feeding bobbin 15 rotated by the bobbin rotating mechanism 24 from above and to hold down the yarn feeding bobbin 15. The pressing member 26 is disposed at a position immediately above the transport tray 14 that is rotationally driven by the bobbin rotating mechanism 24. The pressing member 26 is configured to be movable up and down and is rotatably supported by a bearing. As for the lower surface 26a of the pressing member 26, the center part is recessed upward. By pressing the upper end surface of the tip end portion 21a of the bobbin tube 21 with the lower surface 26a, shaft blurring is prevented during rotation of the yarn feeding bobbin 15.

  The searcher 25 includes a spatula-like engagement portion 25 a configured to be able to engage (hook) the yarn of the yarn supplying bobbin 15. Further, an unillustrated cutter for cutting the yarn is disposed in the vicinity of the engaging portion 25a. The yarn end processing apparatus 11 includes a searcher moving mechanism 31 that can move the searcher 25. The searcher moving mechanism 31 is configured to move the searcher 25 in a direction in contact with or away from the outer peripheral surface (yarn layer surface) of the yarn feeding bobbin 15. The searcher moving mechanism 31 is configured to move the searcher 25 in a direction (vertical direction) parallel to the axis of the yarn feeding bobbin 15.

  The spray nozzle 27 is a tubular body, and a spout 33 for ejecting air is formed at the tip 27a. On the other hand, the base end portion 27 b of the spray nozzle 27 is connected to the air joint 34. The air joint 34 is fixed to a fixed bracket 35 and is connected to a compressed air source (not shown) via an air tube 36. With this configuration, by supplying the compressed air from the compressed air source to the spray nozzle 27, the air can be ejected from the ejection port 33.

  The spray nozzle 27 is disposed with its spout 33 close to the surface of the yarn layer of the yarn feeding bobbin 15. Further, the blowing nozzle 27 is disposed at an appropriate angle so that the air ejected from the ejection port 33 is directed toward the tip end portion 21 a of the bobbin tube 21. By arranging the spray nozzle 27 in this way, the air ejected from the ejection port 33 flows upward toward the tip 21 a of the bobbin pipe 21 along the surface of the yarn layer of the yarn feeding bobbin 15.

  A flat portion is formed at the tip end portion 27a (spout side end portion) on the jet nozzle 33 side of the spray nozzle 27 (that is, a throttle is formed at the tip end portion 27a). As shown in FIG. 5, the shape of the opening of the ejection port 33 is a flat shape (flat shape). By making the spout 33 a flat-shaped flat portion, air is blown out from the spout 33 so as to spread in a flat shape, so that air can be blown over a wide range of the surface of the yarn feeding bobbin 15. In addition, as shown in FIG. 5, the opening shape of the flat part (the cross-sectional shape of the flow path of the ejection port 33) is a long hole. However, the opening shape of the flat portion is not limited to this, and may be, for example, a rectangular shape or an elliptical shape.

  In the present embodiment, a bent portion 27 c is formed in the middle portion of the spray nozzle 27 in the longitudinal direction. Thereby, the proximal end side of the spray nozzle 27 is arranged so that the longitudinal direction thereof is substantially horizontal, and the distal end side of the spray nozzle 27 is inclined upward toward the distal end portion 21 a of the bobbin tube 21. Has been placed. By appropriately setting the angle at which the spray nozzle 27 is bent at the bent portion 27c, the direction of the air ejected from the spray nozzle 27 can be set appropriately.

  In the present embodiment, the longitudinal opening direction of the flat portion is set to a direction orthogonal to the bending direction of the bent portion 27c. In other words, the spray nozzle 27 is bent in a plane orthogonal to the longitudinal opening direction of the flat portion (longitudinal direction of the flow path cross-sectional shape of the ejection port 33). By configuring in this way, as shown in FIG. 6, the flat portion can be arranged along the inclined surface of the shoulder portion of the yarn feeding bobbin 15, so that the flat portion extends along the inclined surface of the shoulder portion. Air can be ejected from the spray nozzle 27.

  Next, the operation of the yarn end processing device 11 will be described.

  First, when it is detected by a sensor or the like that the transport tray 14 on which the yarn feeding bobbin 15 is placed has been transported in the transport path 8, the control unit brings the driven roller 28 into contact with the transport tray 14 to perform the transport. The tray 14 (and the yarn feeding bobbin 15) is stopped at the front position 18 of the yarn end processing device 11. As described above, the yarn feeding bobbin 15 conveyed to the yarn end processing device 11 is in a state where the bottom bunch 23 is removed by the bunch unwinding device 10.

  Next, the control unit presses the tip end portion 21 a of the yarn feeding bobbin 15 with the pressing member 26. In this state, the controller rotates the drive roller 29 by the stepping motor 30 to rotate the yarn feeding bobbin 15 around the axis. At this time, the rotation direction of the yarn supplying bobbin 15 is set to a direction in which the yarn is wound around the yarn supplying bobbin 15 (a direction opposite to the unwinding direction). Here, if the yarn supplying bobbin 15 is rotated in the unwinding direction, the backwind yarn 22 on the surface of the yarn supplying bobbin 15 is loosened, and the backwind yarn 22 is captured and cut by the searcher 25 (described later). Cannot be done properly. Therefore, in the yarn end processing device 11, it is necessary to rotate the yarn feeding bobbin in a direction opposite to the rotation direction (unwinding direction) of the yarn feeding bobbin in the bunch unwinding device 10.

  Subsequently, the control unit causes the searcher moving mechanism 31 to bring the searcher 25 closer to the surface of the yarn layer of the yarn feeding bobbin 15. When the searcher 25 approaches or comes into contact with the surface of the yarn layer of the rotating yarn supplying bobbin 15, the backwind yarn 22 that is spirally wound around the surface of the yarn layer engages with the engaging portion 25 a of the searcher 25. That is, the backwind yarn 22 can be caught by being caught on the engaging portion 25a.

  In this state, the control unit causes the searcher moving mechanism 31 to move the searcher 25 upward. Thereby, the backwind yarn 22 is cut by the cutter provided in the searcher 25 to form the yarn end.

  In addition, before and after the searcher 25 starts capturing and cutting the backwind yarn 22, the control unit starts ejecting compressed air from the spray nozzle 27. As described above, the air ejected from the spray nozzle 27 flows upward toward the tip portion 21 a of the bobbin pipe 21 along the surface of the yarn layer of the yarn feeding bobbin 15. Thereby, the bobbin side yarn end of the backwind yarn 22 cut by the searcher 25 is blown up toward the tip end portion 21 a of the bobbin tube 21.

  Further, as described above, in the present embodiment, since the ejection port 33 is formed in a flat shape, the air ejected from the ejection port 33 spreads in a flat shape and covers a wide area of the yarn layer surface of the yarn feeding bobbin 15. Be sprayed. Thereby, since air can be reliably blown against the backwind yarn 22, the backwind yarn 22 can be reliably blown up.

  As described above, the tip end portion 21a of the yarn supplying bobbin 15 is pressed by the pressing member 26. Therefore, the yarn blown up by the air blown from the blowing nozzle 27 cannot move upward from the end face of the tip end portion 21a. As a result, the yarn blown up by the blowing nozzle 27 is wound around the outer periphery of the distal end portion 21a of the bobbin tube 21 by the rotation of the yarn feeding bobbin 15, and a distal end side winding portion 32 is formed as shown in FIG.

  When the leading end side winding part 32 is formed, the control part returns the searcher 25 and the pressing member 26 to the standby position and separates the driven roller 28 from the transport tray 14. Thereby, the conveyance of the conveyance tray 14 (and the yarn feeding bobbin 15) is restarted, and the conveyance tray 14 (and the yarn feeding bobbin 15) is conveyed toward the outlet device 12.

  In the lead-out device 12, the tip end side winding portion 32 is sucked to catch the yarn end of the yarn feeding bobbin 15, and the lead-out processing is performed.

  As described above, in the spouting device provided in the conventional bobbin processing device, the suction air flow must be applied to the entire surface of the yarn layer of the yarn feeding bobbin in order to suck and capture the yarn end of the cut backwind yarn. I had to. For this reason, the suction efficiency is poor, and the yarn end catching sometimes fails.

  In this regard, in the yarn feeding bobbin 15 in which the leading end winding portion 32 is formed by the yarn end processing device 11 of the present embodiment, the leading end winding portion 32 is sucked to reliably capture the yarn end. be able to. Therefore, in the spouting device 12 of the present embodiment, it is only necessary to generate a suction flow only at the tip side winding portion 32, so that the yarn end can be captured efficiently and reliably. Since the distal end side winding portion 32 is wound around the distal end portion 21a which is the smaller diameter side of the bobbin tube 21, it can be easily removed from the bobbin tube 21 by suctioning upward along the axial direction of the bobbin tube 21. Can be pulled out. Accordingly, the yarn end can be easily captured in the spouting device 12.

  As described above, the yarn end processing apparatus 11 according to the present embodiment includes the bobbin rotating mechanism 24 and the spray nozzle 27. The bobbin rotating mechanism 24 rotates the yarn feeding bobbin 15. The spray nozzle 27 ejects air toward the end of the yarn supplying bobbin 15 along the surface of the yarn supplying bobbin 15. Then, the yarn end processing device 11 ejects air by the spray nozzle 27 while rotating the yarn supplying bobbin 15 in the direction in which the yarn is wound.

  With this configuration, the backwind yarn 22 is blown up by the air blown from the blowing nozzle 27 and wound around the end of the rotating bobbin tube 21. By winding the yarn around the end of the bobbin tube 21 in this way, the yarn of the yarn supplying bobbin 15 can be easily captured by the spouting device 12 in the subsequent process.

  Further, in the yarn end processing apparatus 11 of the present embodiment, a flat portion is formed at the end of the spray nozzle 27 on the side of the spout 33.

  As a result, air can be blown over a wide area of the surface of the yarn layer of the yarn supplying bobbin 15, so that the yarn on the surface of the yarn supplying bobbin 15 can be easily blown up.

  Moreover, in the yarn end processing apparatus 11 of the present embodiment, the spray nozzle 27 is a tubular body, and a bent portion 27c is formed in the middle portion in the longitudinal direction.

  By forming the spray nozzle 27 by bending it in this way, it becomes easy to arrange the spray nozzle 27 so as to eject air in an appropriate direction.

  In the yarn end processing apparatus 11 of the present embodiment, the longitudinal opening direction of the flat portion is a direction orthogonal to the bending direction of the bent portion 27c.

  As a result, air can be ejected along the inclination of the shoulder portion of the yarn supplying bobbin 15, so that the yarn on the surface of the yarn supplying bobbin 15 can be easily blown up.

  Further, in the yarn end processing apparatus 11 of the present embodiment, the spray nozzle 27 blows air toward the tip end portion 21 a that is the small diameter side of the bobbin tube 21.

  Thereby, a thread | yarn can be wound around the front-end | tip part 21a of the bobbin pipe | tube 21. FIG. The portion of the yarn wound around the small-diameter side can be easily extracted from the bobbin tube 21 in the outlet device 12 in the subsequent process.

  The bobbin processing device 3 according to the present embodiment includes the yarn end processing device 11 described above, and a spouting device 12 that performs spouting of the yarn feeding bobbin 15 processed by the yarn end processing device 11. The bobbin processing device 3 processes the supplied yarn supplying bobbin 15 by the yarn end processing device 11 and the spouting device 12 and sequentially supplies the processed yarn to the automatic winder 2.

  In the bobbin processing device 3, the yarn end processing device 11 winds the yarn around the distal end portion 21 a of the bobbin tube 21, so that the reliability of the spout processing in the spout device 12 can be improved. Therefore, the processing efficiency of the bobbin processing device 3 as a whole can be improved.

  The automatic winder system 1 according to this embodiment winds a yarn from the bobbin supply device 4 that supplies the yarn supply bobbin 15 to the bobbin processing device 3 and the yarn supply bobbin 15 that has been subjected to predetermined processing by the bobbin processing device 3. An automatic winder 2 is provided.

  That is, since the processing efficiency of the bobbin processing device 3 can be improved by the yarn end processing device 11 of the present embodiment, the productivity of the entire automatic winder system 1 can be improved.

  The preferred embodiment of the present invention has been described above, but the above configuration can be modified as follows, for example.

  In the above embodiment, the yarn feeding bobbin 15 generated by the spinning machine is transported to the bobbin supplying device 4, and the yarn supplying bobbin 15 is input to the bobbin supplying device 4. However, the present invention is not limited to this. For example, the bobbin processing apparatus and the spinning machine may be connected by a conveyance path so that the yarn feeding bobbin generated by the spinning machine is continuously supplied to the bobbin processing apparatus. good. In this case, the spinning machine corresponds to the bobbin supply unit.

  Note that, in the case where the yarn feeding bobbin 15 is continuously supplied from the spinning machine as described above, there may be a case where no bunch winding is formed on the yarn feeding bobbin 15. In this case, the operation of cutting the backwind yarn 22 by the searcher 25 is not necessary. However, even in this configuration, as in the above-described embodiment, the yarn is wound around the distal end portion 21a of the bobbin tube 21 by blowing air with the spray nozzle 27 while rotating the yarn feeding bobbin 15, so that the distal end side winding is performed. The attaching part 32 can be formed. Thereby, in the mouthing device 12, the mouthing process can be easily performed. As described above, even when the bunch winding is not formed on the yarn feeding bobbin 15, the configuration of the present invention can be applied.

1 Automatic winder system (yarn winding system)
2 Automatic winder (yarn winding device)
3 Bobbin Processing Device 11 Yarn End Processing Device 15 Yarn Supply Bobbin 22 Backwind Yarn 23 Bottom Bunch 24 Bobbin Rotating Mechanism 27 Spraying Nozzle 33 Spout

Claims (7)

A bobbin rotating mechanism for rotating the yarn feeding bobbin;
A blowing nozzle that blows out air along the surface of the yarn supplying bobbin toward the end of the yarn supplying bobbin;
With
A yarn end processing device, wherein air is blown from the spray nozzle while rotating the yarn supplying bobbin in a direction in which the yarn is wound. The yarn end processing device according to claim 1,
A flat end portion is formed at an ejection side end portion of the spray nozzle. The yarn end processing device according to claim 2,
The spray nozzle is a tubular body, and a bent portion is formed at an intermediate portion in the longitudinal direction thereof. The yarn end processing device according to claim 3,
The yarn end processing apparatus according to claim 1, wherein a longitudinal opening direction of the flat portion is a direction orthogonal to a bending direction of the bent portion. The yarn end processing device according to claim 4,
The yarn sprayer, wherein the spray nozzle blows air toward a small diameter side of the yarn feeding bobbin. The yarn end processing device according to any one of claims 1 to 5,
A spouting device for spouting the yarn feeding bobbin processed by the yarn end processing device;
With
A bobbin processing device, wherein the supplied yarn supplying bobbin is processed by the yarn end processing device and the lead-out device and is sequentially supplied to a yarn winding device. The bobbin processing device according to claim 6,
A bobbin supply unit for supplying a yarn feeding bobbin to the bobbin processing device;
A yarn winding system comprising: a yarn winding device that winds a yarn from a yarn supplying bobbin that has been subjected to a predetermined process by the bobbin processing device.

Images