WO2012120963A1 - Appareil de retenue/d'attraction de fil et appareil d'enroulement de fil - Google Patents

Appareil de retenue/d'attraction de fil et appareil d'enroulement de fil Download PDF

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Publication number
WO2012120963A1
WO2012120963A1 PCT/JP2012/053034 JP2012053034W WO2012120963A1 WO 2012120963 A1 WO2012120963 A1 WO 2012120963A1 JP 2012053034 W JP2012053034 W JP 2012053034W WO 2012120963 A1 WO2012120963 A1 WO 2012120963A1
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WO
WIPO (PCT)
Prior art keywords
yarn
winding
reservoir
storage
guide member
Prior art date
Application number
PCT/JP2012/053034
Other languages
English (en)
Japanese (ja)
Inventor
功 福田
木野　義浩
Original Assignee
村田機械株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 村田機械株式会社 filed Critical 村田機械株式会社
Publication of WO2012120963A1 publication Critical patent/WO2012120963A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H51/00—Forwarding filamentary material
    • B65H51/20—Devices for temporarily storing filamentary material during forwarding, e.g. for buffer storage
    • B65H51/22—Reels or cages, e.g. cylindrical, with storing and forwarding surfaces provided by rollers or bars
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H67/00—Replacing or removing cores, receptacles, or completed packages at paying-out, winding, or depositing stations
    • B65H67/08—Automatic end-finding and material-interconnecting arrangements
    • B65H67/081—Automatic end-finding and material-interconnecting arrangements acting after interruption of the winding process, e.g. yarn breakage, yarn cut or package replacement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/30—Handled filamentary material
    • B65H2701/31—Textiles threads or artificial strands of filaments

Definitions

  • the present invention relates to a yarn storage / drawing device and a yarn winding device that temporarily store a yarn pulled out from a yarn supply unit in a yarn storage body, and pull out the yarn stored in the yarn storage body to perform yarn processing.
  • a yarn unwound from a yarn feeding bobbin held by a yarn feeding bobbin holding portion is wound around a yarn reservoir (reserving portion) by a storage guide arm.
  • the yarn is temporarily stored in the yarn reservoir, and the yarn stored in the yarn reservoir is wound to form a package.
  • the yarn end on the yarn reservoir side is made to hang down from the introduction hole for introducing the yarn into the storage guide arm.
  • the hanging yarn end is captured by the downstream yarn guide pipe and guided to the splicer device, and the yarn end on the yarn supplying bobbin side is captured by the upstream yarn guide pipe and guided to the splicer device. Perform yarn splicing at the yarn end.
  • the yarn stored in the yarn storage body can be pulled out and the winding of the yarn can be continued, so that the yarn can be wound without stopping the winding of the yarn. Can be made.
  • Patent Document 1 when the yarn unwinding speed from the yarn supplying bobbin is high, as described above, when a yarn defect is detected, the yarn in the yarn supplying bobbin is lost and a new yarn supplying bobbin is used.
  • the rotation of the storage guide arm is stopped at the time of replacement, the yarn end is not detected until the rotation of the storage guide arm is stopped after it is detected that there is no yarn defect or the yarn in the yarn feeding bobbin. Reaches the yarn reservoir and winds around the yarn reservoir. That is, the yarn end on the yarn reservoir side may not be in a state of hanging from the introduction hole.
  • An object of the present invention is to provide a yarn storage / drawing device and a yarn winding device that can reliably pull out the yarn end on the yarn storage side.
  • a yarn storage and withdrawal device includes a yarn supply unit, a yarn storage body that winds and stores the yarn of the yarn supply unit from a first end toward a second end, and the yarn storage body.
  • the unwinding processing unit that unwinds and processes the stored yarn from the second end, and the supply of the yarn from the yarn supply unit to the yarn storage body is interrupted, and the yarn end is wound around the yarn storage body.
  • a pull-out mechanism that pulls the yarn end wound around the yarn reservoir from the first end side of the yarn reservoir, and a yarn end wound around the yarn reservoir by the pull-out mechanism And a drawer assisting mechanism for assisting the drawer operation.
  • the yarn stored in the yarn storage body is pulled out from the second end in the unwinding processing unit and processed while being pulled out.
  • the yarn end wound around the yarn reservoir by the mechanism can be pulled out from the first end side.
  • the drawing end assisting portion assists the drawing operation of the yarn end by the drawing mechanism, the yarn end wound around the yarn accumulating body can be reliably pulled out.
  • the yarn storage / drawing device is the yarn storage / drawing device according to the first invention, wherein the yarn storage / drawing device is disposed between the yarn supplying section and the yarn storage body, and is drawn by the drawing mechanism. It is further characterized by further comprising a yarn joining portion that performs yarn joining between the yarn end on the yarn storage body side and the yarn end on the yarn supplying portion side.
  • the yarn end of the yarn on the yarn supply portion side and the yarn end of the yarn on the yarn reservoir side pulled out by the drawing mechanism can be spliced by the yarn joining portion.
  • a yarn storage / drawing device is the yarn storage / drawing device according to the first or second aspect of the invention, wherein the drawing mechanism pulls out by sucking the yarn end,
  • the pull-out assisting portion is characterized in that the yarn end is held at a position where the yarn end can be sucked by the pull-out mechanism.
  • the yarn end when the drawing mechanism sucks and pulls out the yarn end, the yarn end can be reliably pulled out by holding the yarn end at a position where it can be sucked by the drawing mechanism by the drawing assisting portion.
  • the yarn storage / drawing apparatus according to the third aspect of the present invention, wherein the yarn storage body includes a winding portion around which the yarn is wound, and the second end side of the winding portion. And a storage part for storing the yarn wound around the winding part as it moves, the withdrawal assisting part fastens the yarn end to the winding part, and the withdrawal mechanism The yarn end fastened to the winding part is sucked by the auxiliary part.
  • the yarn end since the yarn end is fastened to the winding portion of the yarn storage body, the yarn end can be pulled out without affecting the yarn wound around the storage portion of the yarn storage body.
  • a yarn storage and withdrawal device is the yarn storage and withdrawal device according to the fourth aspect of the invention, further comprising a winding mechanism that winds the yarn pulled out from the yarn supplying portion around the winding portion, and the winding mechanism.
  • a winding mechanism that winds the yarn pulled out from the yarn supplying portion around the winding portion
  • the winding mechanism Includes a guide member that guides the yarn drawn from the yarn supplying unit to the winding unit, and the drawing mechanism is connected to the guide member that is common to the winding mechanism and the guide member from the yarn storage side.
  • An air flow generation device that generates an air flow toward the yarn supplying unit, and the guide member is configured to move from the first end side to the second end side when the yarn is wound by the winding mechanism. It is configured to guide the yarn along the outer circumferential direction of the yarn reservoir as viewed, and thus also serves as the drawing auxiliary portion.
  • the yarn end since the yarn is guided and wound along the outer circumferential direction of the yarn reservoir as viewed from the direction from the first end side to the second end side, when the yarn is divided, the yarn end is It stays in the winding part that can be sucked by the drawing mechanism without jumping up to the yarn processing part side. Therefore, the yarn end can be reliably pulled out by the drawing mechanism.
  • the yarn storage and withdrawal device is the yarn storage and withdrawal device according to the fifth aspect of the invention, wherein the winding portion of the yarn storage body is viewed from the direction from the first end side to the second end side.
  • a circular winding outer periphery, and the guide member guides the yarn in a tangential direction of the winding outer periphery, so that the yarn reservoir is viewed from the direction from the first end side to the second end side. It is comprised so that a thread
  • the winding outer periphery of the yarn storage body By guiding the yarn in the tangential direction, and winding the yarn, when the yarn is divided, the yarn end does not jump up to the yarn processing portion side, but remains in the winding portion that can be sucked by the drawing mechanism. Therefore, the yarn end can be reliably pulled out by the drawing mechanism.
  • the yarn storage / drawing device is the yarn storage / drawing device according to the fifth or sixth aspect of the invention, wherein the guide member extends from the first end to the second end at the end on the yarn storage side. It is a tubular member which has a linear part extended along the outer peripheral direction of the said thread
  • the tubular member having a straight portion extending along the outer circumferential direction of the yarn reservoir as viewed from the direction from the first end side to the second end side, It can guide along the said outer peripheral direction.
  • a yarn storage / drawing device is the yarn storage / drawing device according to the fourth aspect of the invention, wherein the drawing auxiliary portion is disposed so as to surround the outer periphery of the yarn storage body, and is in contact with the yarn end.
  • the yarn end is an annular member that prevents the yarn end from jumping up in the direction from the winding portion toward the storage portion.
  • the annular member prevents the yarn end from jumping up in the direction from the winding portion toward the storage portion, so that the winding portion can be sucked by the drawing mechanism. Stay on. Therefore, the yarn end can be reliably pulled out by the drawing mechanism.
  • a yarn storage and withdrawal device is the yarn storage and withdrawal device according to the eighth aspect of the invention, further comprising a winding mechanism that winds the yarn drawn from the yarn supply portion around the winding portion, and the winding mechanism.
  • a winding mechanism that winds the yarn drawn from the yarn supply portion around the winding portion
  • the winding mechanism Includes a guide member that guides the yarn drawn from the yarn supplying unit to the winding unit, and the drawing mechanism is connected to the guide member that is common to the winding mechanism and the guide member from the yarn storage side.
  • An air flow generating device that generates an air flow toward the yarn supplying section, and the annular member surrounds the storage section of the yarn storage body on the second end side of the winding section. It is arranged.
  • the yarn end when the yarn is divided, the yarn end can be kept in the vicinity of the guide member, so that the yarn end can be reliably sucked by the drawing mechanism.
  • the yarn storage / drawing device is the yarn storage / drawing device according to the eighth or ninth aspect of the invention, wherein the annular member includes at least a portion including an inner peripheral end thereof, and is formed of the elastic material.
  • the inner peripheral end In a state where no yarn is wound around the yarn reservoir, the inner peripheral end is in contact with the yarn reservoir, or a gap smaller than the yarn diameter between the inner peripheral end and the yarn reservoir. It arrange
  • the present invention it is possible to reliably prevent the yarn end from moving between the yarn reservoir and the annular member and moving toward the yarn processing body.
  • the yarn wound around the winding portion and moving toward the storage portion can pass through the annular member by elastically deforming and pushing away the annular member.
  • the yarn storage / drawing apparatus wherein the drawing auxiliary portion is wound from the yarn that is wound around the winding portion and moves toward the storage portion. It is a yarn end separating member for fastening the yarn end to the winding portion by separating the end.
  • the yarn end can be retained on the winding portion by separating the yarn end from the yarn that is wound around the winding portion and moves toward the storage portion. Can be aspirated.
  • the yarn storage and withdrawal device is the yarn storage and withdrawal device according to the eleventh aspect of the invention, wherein the yarn end separation member is provided in the winding portion and moves toward the storage portion. It is characterized in that it is made of an elastic material that can be pushed away by the yarn wound around the winding portion and that cannot be pushed away by the divided yarn end.
  • the wound yarn moves away from the elastic material, but the yarn end cannot push away the elastic member. Therefore, the yarn end is separated from the yarn wound around the winding portion, and the separated yarn end is separated. Can be fastened to the winding part.
  • a yarn storage / drawing device is the yarn storage / drawing device according to the first or second aspect of the present invention, further comprising a winding mechanism for winding the yarn pulled out from the yarn supplying portion around the winding portion,
  • the winding mechanism includes a tubular guide member that guides the yarn drawn from the yarn supplying section to the yarn storage body, and the drawing mechanism is connected to the guide member common to the winding mechanism, and the guide member.
  • An air flow generating device that generates an air flow from the yarn reservoir side toward the yarn supply unit side, and the guide member has an opening area at an end on the yarn reservoir side that is an area of an internal passage of the yarn guide member By being larger than this, it also serves as the above-mentioned drawer auxiliary part.
  • the opening area of the end of the guide member on the yarn reservoir side is large, the range in which the yarn end of the drawing mechanism can be sucked is widened, thereby reliably pulling out the yarn end. Can do.
  • a yarn storage and withdrawal device is the yarn storage and withdrawal device according to the thirteenth aspect of the invention, wherein the guide member is at the first end side at the yarn reservoir side end at the yarn reservoir side end.
  • the guide member is at the first end side at the yarn reservoir side end at the yarn reservoir side end.
  • the yarn end in addition to widening the range in which the yarn end can be sucked in the drawing mechanism, the yarn end can be sucked at a position close to the yarn reservoir, so that the yarn end can be pulled out more reliably. You can.
  • a yarn storage and withdrawal device is the yarn storage and withdrawal device according to the seventh or fourteenth aspect of the invention, wherein the winding mechanism is configured to be able to switch the winding direction of the yarn around the yarn storage body.
  • the guide member is characterized in that the direction of the linear portion can be switched in accordance with the winding direction.
  • the yarn can be guided along the outer peripheral direction by the yarn guide member regardless of which direction the yarn is wound around the yarn reservoir.
  • the yarn storage / drawing apparatus according to the first or second aspect, wherein the drawing auxiliary portion scrapes the yarn end from the yarn wound around the yarn storage body. It is a protruding member.
  • the yarn end stuck to the yarn wound around the yarn reservoir is scraped out by the yarn end scraping member, the yarn end can be reliably pulled out by the drawing mechanism.
  • a yarn storage and withdrawal device is the yarn storage and withdrawal device according to the sixteenth aspect of the present invention, further comprising a winding mechanism that winds the yarn pulled out from the yarn supply portion around the winding portion, and the winding mechanism Is a guide member that guides the yarn drawn from the yarn supplying section to the yarn storage body, and relatively rotates the guide member and the yarn storage body around a winding center of the yarn in the yarn storage body.
  • a rotation mechanism, and the draw-out mechanism generates the air flow from the yarn reservoir to the yarn supplying section side in the guide member and the rotation mechanism that are common to the winding mechanism.
  • the yarn end scraping member is provided on the guide member, and comes into contact with the yarn reservoir that rotates relative to the guide member when the yarn is pulled out by the drawing mechanism. Scraping the yarn end And features.
  • the yarn end that is provided on the guide member and scraped by the yarn end scraping member that contacts the yarn reservoir that rotates relative to the guide member comes close to the guide member. Therefore, the yarn end can be pulled out reliably.
  • the yarn storage and withdrawal device is the yarn storage and withdrawal device according to the sixteenth or seventeenth aspect of the invention, wherein the yarn end scraping member is removed from the yarn storage body when winding the yarn around the yarn storage body. It is configured to be separated from each other.
  • the yarn end scraping member can be prevented from coming into contact with the yarn wound around the yarn reservoir and damaging the yarn.
  • a yarn storage and withdrawal device is the yarn storage and withdrawal device according to any of the sixteenth to eighteenth aspects of the invention, wherein the yarn end scraping member is constituted by a brush.
  • the configuration of the thread end scraping member can be simplified.
  • a yarn storage / drawing device is the yarn storage / drawing device according to the first or second aspect of the invention, wherein the yarn storage body includes a plurality of rollers arranged on a virtual circumference, A guide member that guides the yarn to the roller, and a rotation mechanism that rotates the guide member along the virtual circumference, and the drawing mechanism stores the yarn in the guide member and the rotation mechanism, and the guide member.
  • An air flow generating device that generates an air flow from the body side toward the yarn supplying unit side, and the drawing auxiliary portion is disposed between at least portions of the plurality of rollers where the yarn is guided by the guide member.
  • the winding shape of the yarn approaches a circular shape, so that the distance between the guide member and the yarn wound around the yarn storage body increases.
  • the yarn end can be reliably pulled out by the pull-out mechanism.
  • the yarn storage / drawing device is the yarn storage / drawing device according to the twentieth aspect, wherein a surface around which the yarn of the winding shape adjusting member is wound is between the plurality of rollers and the virtual circumference. It is characterized by extending continuously along.
  • the yarn winding shape can be made almost circular, so that the yarn end can be pulled out reliably. Further, since the yarn end is positioned on the surface of the roller or the winding shape adjusting member, the yarn end can be pulled out more reliably than when the yarn end is positioned in the air.
  • a yarn storage and withdrawal device is the yarn storage and withdrawal device according to the twentieth aspect, wherein the winding shape adjusting member is located between the plurality of rollers and from the first end side to the second end side. It is characterized by being a plurality of plate-like members respectively arranged so that the surface direction thereof is parallel to the radial direction of the yarn reservoir as viewed from the direction toward.
  • the configuration of the winding shape adjusting member can be simplified.
  • a yarn winding device is constituted by the yarn storage / drawing device according to any one of the first to twenty-second embodiments, wherein the unwinding processing section is stored in the yarn storage body. It is a winding unit that pulls out a yarn and winds it up on a package, wherein the yarn supplying unit is a bobbin supporting unit that supports a yarn supplying bobbin around which a spun yarn is wound.
  • the yarn processing unit is a winding unit
  • the yarn joining is continued while the yarn is being wound up.
  • the yarn end wound around the yarn reservoir can be reliably pulled out.
  • the yarn supply from the yarn supply unit to the yarn reservoir is interrupted, the yarn stored in the yarn reservoir in the unwinding processing unit is pulled out from the second end, The yarn end wound around the yarn reservoir by the drawing mechanism can be pulled out from the first end side.
  • the drawing end assisting portion assists the drawing operation of the yarn end by the drawing mechanism, the yarn end wound around the yarn accumulating body can be reliably pulled out.
  • FIG. 1 It is a schematic block diagram of the winding unit which concerns on 1st Embodiment. It is a schematic block diagram of the accumulator of FIG. It is a top view which shows the positional relationship of the roller of FIG. 2, a slope member, and a winding arm. It is a schematic block diagram of the accumulator of 2nd Embodiment. It is a figure equivalent to FIG. 3 of 2nd Embodiment. It is the figure which showed typically the effect
  • (A) is a figure equivalent to FIG. 3 of 4th Embodiment
  • (b) is the elements on larger scale of the area
  • (A) is a schematic block diagram of the accumulator in 7th Embodiment
  • (b) is the elements on larger scale of the area
  • (A) is the figure equivalent to FIG. 13 of the accumulator in 8th Embodiment,
  • (b) is the elements on larger scale of the area
  • (A) is the figure equivalent to FIG. 3 of the modification 1
  • (b) is the figure equivalent to FIG. 13 of the modification 2.
  • the automatic winder according to the first embodiment includes a number of winding units 2 (yarn storage and drawing device, yarn winding device) shown in FIG.
  • Each winding unit 2 includes a yarn supplying unit 5, a winding unit 6, a yarn defect detecting unit 7, a yarn joining unit 8, and a yarn storing unit 9.
  • the yarn supplying unit 5 (yarn supplying unit) includes a yarn supplying bobbin holding unit 60 for holding the yarn supplying bobbin 21, a yarn unwinding assisting device 12, and a first tension applying device 41. Further, the yarn supplying unit 5 further includes a bobbin supplying device (not shown) for supplying a new yarn supplying bobbin 21 to the yarn supplying bobbin holding unit 60. Examples of the bobbin supply device include a magazine-type supply device and a tray-type supply device. When all the spun yarn Y (hereinafter simply referred to as yarn Y) is pulled out from the yarn supplying bobbin 21 set in the winding unit 2, the yarn supplying unit 5 is held by the yarn supplying bobbin holding unit 60. The empty bobbin is discharged, and the bobbin supply device sequentially supplies new yarn supplying bobbins 21 to the yarn supplying bobbin holding unit 60.
  • yarn Y spun yarn Y
  • the yarn unwinding assist device 12 lowers the yarn Y from the yarn supplying bobbin 21 by lowering the regulating member 40 covering the core pipe of the yarn supplying bobbin 21 in conjunction with the yarn Y unwinding from the yarn supplying bobbin 21. Assist the cocoon.
  • the regulating member 40 comes into contact with the balloon formed on the upper portion of the yarn feeding bobbin 21 by the rotation and centrifugal force of the yarn Y unwound from the yarn feeding bobbin 21, and applies an appropriate tension to the balloon to thereby apply the yarn Y. Assist with unraveling.
  • a yarn feeler 37 capable of detecting the presence or absence of the yarn Y is provided.
  • the yarn feeler 37 detects that the yarn Y pulled out from the yarn feeding bobbin 21 has run out.
  • the first tension applying device 41 applies a predetermined tension to the traveling yarn Y.
  • a gate type device in which movable comb teeth are arranged with respect to fixed comb teeth can be used.
  • the movable comb teeth can be rotated by a rotary solenoid (not shown) so that the comb teeth are engaged or opened.
  • the first tension applying device 41 can apply a certain tension to the yarn Y stored in the accumulator 61 to be described later, and the yarn Y can be wound in an orderly manner in the accumulator 61 and stored.
  • the winding unit 6 (unwinding processing unit) includes a cradle (package support unit) (not shown) configured to hold the winding bobbin 22 and a winding unit for traversing the yarn Y and rotating the winding bobbin 22.
  • a drum 24 and a second tension applying device 42 are provided.
  • the cradle is configured to be able to swing in a direction in which the cradle approaches or separates from the take-up drum 24, whereby the package 30 is brought into contact with or separated from the take-up drum 24.
  • a spiral traverse groove 27 is formed on the outer peripheral surface of the winding drum 24, and the yarn Y is traversed by the traverse groove 27.
  • the winding drum 24 is driven to rotate by a motor (not shown), thereby rotating the winding bobbin 22 disposed to face the winding drum 24.
  • the second tension applying device 42 controls the tension when the yarn Y unwound from an accumulator 61 (to be described later) of the yarn storage unit 9 is wound around the package 30. As a result, the yarn Y drawn from the accumulator 61 is wound on the winding bobbin 22 in a state where an appropriate tension is applied.
  • the second tension applying device 42 may be a gate type device in which movable comb teeth are arranged with respect to fixed comb teeth.
  • the yarn defect detection unit 7 includes a yarn clearer 15.
  • the yarn clearer 15 detects a defect by monitoring the thickness of the yarn Y with an appropriate sensor.
  • the yarn clearer 15 can also function as a sensor that simply detects the presence or absence of the yarn Y. Further, the yarn clearer 15 is provided with a cutter 16 for cutting the yarn upstream of the yarn defect when the yarn defect is detected.
  • a waxing device 17 for waxing the running yarn Y is disposed on the downstream side of the second tension applying device 42.
  • a suction unit (not shown) is provided on the downstream side of the waxing device 17. This suction part is connected to an appropriate negative pressure source and can suck and remove wax wrinkles and lint.
  • the yarn joining portion 8 includes a splicer device 14 that performs a yarn joining operation, a lower yarn guide pipe 25, and an upper yarn guide pipe 26.
  • the splicer device 14 is used to store the yarn supply section 5 and the yarn storage when the running yarn Y is cut, when a yarn defect occurs, when the yarn Y of the yarn supply bobbin 21 is lost, and the yarn supply bobbin 21 is replaced.
  • the yarn Y is divided between the yarn supply unit 5 and the supply of the yarn Y from the yarn supply unit 5 to the yarn storage unit 9 is interrupted, the yarn end on the yarn supply bobbin 21 side and the yarn on the package 30 side It joins the ends.
  • a mechanical device, a device using a fluid such as compressed air, or the like can be used as the splicer device 14.
  • the lower thread guide pipe 25 is rotatably supported around a shaft 25a positioned below the splicer device 14, and can be rotated by a motor (not shown).
  • a suction port 25b is provided at the tip of the lower thread guide pipe 25, and a clamp portion (not shown) is provided in the suction port 25b.
  • a negative pressure source (not shown) is connected to the lower thread guide pipe 25, so that a negative pressure is supplied, thereby generating a suction flow for sucking the thread Y into the suction port 25b. .
  • the upper thread guide pipe 26 is rotatably supported around a shaft 26a positioned above the splicer device 14, and can be rotated by a motor (not shown).
  • a suction port 26b is provided at the tip of the upper thread guide pipe 26, and a clamp portion 26c (see FIG. 2) is provided in the suction port 26b.
  • a negative pressure source 120 (see FIG. 2) is connected to the upper thread guide pipe 26, so that a negative pressure is supplied, whereby suction for sucking the thread Y into the suction port 26b is performed. A flow is generated.
  • the yarn storage unit 9 includes an accumulator 61 for storing the yarn Y that has been unwound from the yarn supply bobbin 21 and before being wound around the winding bobbin 22.
  • the accumulator 61 includes a yarn storage body 70, a winding arm 75, a winding arm motor 76, a speed reducer 77, pulleys 78a to 78c, a shaft 79, and the like.
  • the yarn storage body 70 includes six rollers 71, a base material 72, a rotating plate 73, and three slope members 74.
  • the base material 72 is a substantially circular plate-like body, and is supported by a tip portion of the output shaft 136 of the winding arm motor 76 via a bearing (not shown).
  • the six rollers 71 are arranged on the upper surface of the base material 72 along the virtual circumference R, and the lower end (first end) is pivotally supported on the upper surface of the base material 72 and the upper end (first Two ends) are supported by the rotating plate 73.
  • the rotation plate 73 is rotatable about the rotation axis C1 of the winding arm motor 76.
  • the rotation plate 73 When the rotation plate 73 is rotated, the upper end of the roller 71 supported by the rotation plate 73 is The yarn storage body 70 moves in the circumferential direction by a distance corresponding to the same central angle.
  • the roller 71 When the upper end of the roller 71 is moved in the circumferential direction of the yarn reservoir 70 by rotating the rotary plate 73, the roller 71 is moved from the winding portion of the yarn reservoir 70 as shown in FIG. It is inclined with respect to the yarn storage direction toward the yarn unwinding portion. That is, all the rollers 71 are supported while being inclined with respect to the rotation axis C1.
  • the rotating plate 73 is provided with a rubber ring 81 so as to surround the outer peripheral surface thereof, and the yarn Y wound around the roller 71 is interposed between the rotating plate 73 and the rubber ring 81 as described later. It is sent toward the winding unit 6 through the gap. At this time, since the yarn Y is fed between the rotating plate 73 and the rubber ring 81, the fluff of the yarn Y is laid down. Further, since the yarn Y is sandwiched between the rotating plate 73 and the rubber ring 81, a balloon is generated in the yarn Y that is unwound from the roller 71 and travels toward the winding unit 6. Can be prevented.
  • a pulley 82 is attached to the lower surface of the roller 71.
  • the pulley 82 is a pulley connected to the speed reducer 77 and a speed reducer 77 that reduces and transmits the rotation of the winding arm motor 76 at a predetermined speed reduction ratio.
  • the six rollers 71 are all driven rollers driven by the winding arm motor 76, but some of them are connected to the winding arm motor 76. There may be no driven roller.
  • the three slope members 74 are attached to the base material 72 so as to be separated from each other by about 120 ° so as to surround the lower ends of the six rollers 71.
  • the slope member 74 has a winding auxiliary surface 74 a for smoothly connecting the outer peripheral surfaces of the adjacent rollers 71 at a portion located between the adjacent rollers 71, and the surface of the lower end portion of the roller 71.
  • the winding auxiliary surface 74a forms a surface extending substantially continuously along the virtual circumference R. Further, the winding auxiliary surface 74a is inclined so that the upper part comes to the inner side in the radial direction.
  • the winding arm 75 (guide member) is for guiding the yarn Y to the lower end portion of the roller 71, and is configured to be rotatable about the rotation axis C1, and the yarn Y can travel inside.
  • This is a tubular member in which an internal flow path 128 is formed.
  • the winding arm 75 is connected to the outer peripheral surface of the output shaft 136, extends from the outer peripheral surface of the output shaft 136 to the outside in the radial direction so as to wrap around the side of the yarn reservoir 70, and reaches the vicinity of the lower end portion of the roller 71. .
  • the winding portion of the yarn storage body 70 has a circular winding outer periphery in a plan view (as viewed from the direction from the first end side to the second end side), and the winding arm 75
  • the front end portion is a straight portion 75a extending linearly in the tangential direction of the winding outer periphery in plan view (along the outer peripheral direction of the yarn reservoir 70).
  • an opening 75 b that faces the lower end of the roller 71 is formed at the tip of the winding arm 75.
  • the opening 75b is inclined with respect to the straight portion and extends along the circumferential direction of the roller 71 and the slope member 74, whereby the opening area of the opening 75b is larger than the area of the internal flow path 128. It has become.
  • the winding arm 75 is rotatable about the rotation axis C1, and by rotating counterclockwise in plan view about the rotation axis C1, the winding arm 75 is wound as described later.
  • the yarn Y on the yarn supplying portion 5 side guided into the internal flow path 128 of the attached arm 75 is wound around the lower end portions of the six rollers 71 and the slope member 74.
  • the yarn Y is tangential to the winding portion of the yarn reservoir 70 in a plan view (as viewed from the direction from the first end side to the second end side) by the straight portion 75a of the winding arm 75. Be guided to.
  • the yarn Y is guided by the winding arm 75 along the outer circumferential direction of the yarn reservoir 70.
  • the internal flow path 128 of the winding arm 75 communicates with the flow path 144 formed inside the output shaft 136.
  • a balancer 145 formed integrally with the output shaft 136 is provided on the opposite side of the winding arm 75 and the output shaft 136.
  • the winding arm motor 76 (rotation mechanism) is a position-controllable motor such as a servo motor, a DC brushless motor, or a stepping motor.
  • the combination of the winding arm 75 and the winding arm motor 76 corresponds to the winding mechanism according to the present invention.
  • a yarn passage 146 communicating with the passage 144 of the output shaft 136, and an upper thread guide pipe that opens into the yarn passage 146 and that extends from the winding arm 75 side.
  • a blow-down nozzle 148 having a blow-down flow path 147 formed to be inclined toward the 26th side is provided.
  • a pressure air source 151 (air flow generator) is connected to the downflow passage 147 via a connection pipe 149 and a connection pipe 150, and an electromagnetic valve 152 is connected between the connection pipe 149 and the connection pipe 150. Is provided.
  • this air flow attracts the yarn end of the yarn Y wound around the roller 71, and at the same time, the winding arm 75 is reversed from the winding time of the yarn Y around the yarn storage body 70. By rotating in the direction, the sucked yarn end is pulled out to the yarn joining portion 8 side. That is, in 1st Embodiment, the winding arm 75 and the winding arm motor 76 which comprise a winding mechanism, the blowing nozzle 148 mutually connected by the connection pipes 149, 150, 151, the pressure air source 151, and a solenoid valve The combination with 152 corresponds to the drawing mechanism according to the present invention.
  • a pull-out sensor 154 is provided at the lower end of the blow-down nozzle 148 for detecting that the yarn end of the yarn Y wound in the accumulator 61 is actually pulled out to the yarn joining portion 8 side. Yes.
  • the operator of the automatic winder (winding unit 2) unwinds the yarn Y from the yarn feeding bobbin 21, and uses the yarn Y as a yarn unwinding assisting device 12, a yarn feeler 37, a first tension applying device 41, and a yarn clearer 15.
  • the accumulator 61, the second tension applying device 42, and the waxing device 17 are set and fixed to the winding bobbin 22.
  • the yarn path of the yarn Y in the accumulator 61 is as shown in FIG. That is, the operator passes the yarn Y through the pull-out sensor 154, the yarn passage 146 of the blow-down nozzle 148, the passage 144 of the output shaft 136, and the internal passage 128 of the winding arm 175 in order.
  • the operator pulls the yarn Y on the opening 75 b side of the winding arm 75, winds it around the roller 71 and the slope member 74, for example, about 5 to 20 times, and sets it on the second tension applying device 42.
  • the yarn Y in FIG. 2 is drawn thick for convenience of explanation and the winding interval is large, but in reality, the roller 71 is always wound around 600 times at a small winding interval. A bundle of warp yarns Y is stored.
  • the winding arm 75 is rotated by the winding arm motor 76 and the winding drum 24 is rotated. Then, when the winding arm 75 rotates, the yarn Y of the yarn supplying bobbin 21 is unwound (drawn), and the unwound yarn Y is applied to the lower ends of the six rollers 71 and the three slope members 74. Wrapped across. When the wound yarn Y moves upward along the inclination of the winding auxiliary surface 74a of the slope member 74 and moves further upward than the slope member 74, only the six rollers 71 are wound.
  • the six rollers 71 also rotate, and the yarn Y wound around the six rollers 71 is conveyed in the circumferential direction of the roller 71 by the rotating roller 71.
  • the roller 71 is inclined with respect to the yarn accumulating direction (the direction of the rotation axis C1) as described above, the circumferential direction of the roller 71 has a vector component from the winding portion toward the unwinding portion.
  • the yarn Y wound around the roller 71 moves upward.
  • the yarn Y unwound from the yarn feeding bobbin 21 is moved from the lower end (first end, winding side end) to the upper end (second end, The yarn is stored in the yarn storage body 70 in a state of being wound toward the unwinding side end portion.
  • the yarn Y stored in the state of being wound around the roller 71 by the rotation of the winding drum 24 is drawn out in order from the upper end by the winding unit 6 and wound around the package 30 while being traversed by the winding drum 24. (Thread processed).
  • the lower end portion of the roller 71 around which the yarn Y is wound together with the slope member 74 by the winding arm 75 corresponds to the winding portion according to the present invention, and the winding auxiliary surface 74a of the slope member 74.
  • the portion of the roller 71 and the slope member 74 positioned above (on the second end side) the yarn Y wound around the winding portion moves due to the inclination of the roller 71 and the rotation of the roller 71. This corresponds to the storage unit according to the present invention.
  • the yarn joining operation in the winding unit 2 will be described.
  • the yarn Y of the yarn feeding bobbin 21 is lost.
  • the yarn supplying bobbin 21 is replaced, the yarn Y is divided between the yarn supplying unit 5 and the yarn accumulating unit 9, and the supply of yarn from the yarn supplying unit 5 to the yarn accumulating unit 9 is interrupted. . Therefore, in such a case, the winding unit 2 performs the splicing of the divided yarn Y as described below.
  • the winding unit 6 pulls out the yarn Y stored in the yarn storage body 70 without stopping the winding of the yarn Y onto the winding bobbin 22 while performing the yarn splicing described below. The winding of the yarn Y onto the winding bobbin 22 is continued.
  • the winding arm 75 When it is detected that the traveling yarn has been cut, when a yarn defect is detected, or when it is detected that the yarn Y of the yarn feeding bobbin 21 has run out, the winding arm 75 is rotated. Stop. At this time, the yarn end on the accumulator 61 side reaches the yarn reservoir 70 until the winding arm 75 stops rotating, and winds around the lower end portion of the roller 71 and the slope member 74.
  • the winding arm 75 is rotated at a low speed in the direction opposite to that at the time of winding, and the electromagnetic valve 152 is opened, so that the internal flow path 128 of the winding arm 75 and the winding arm motor 76 are opened as described above.
  • An air flow from the yarn reservoir 70 side to the upper yarn guide pipe 26 side is generated in the flow channel 144 of the output shaft 136 and the yarn flow channel 146 of the blow-down nozzle 148.
  • the yarn end of the yarn Y that has been wound around the yarn reservoir 70 is sucked into the winding arm 75 from the opening 75b by the winding arm 75 that rotates while sucking, and the sucked yarn end becomes the internal flow path 128, the flow. It is drawn out to the upper thread guide pipe 26 side through the path 144 and the thread flow path 146.
  • the drawing sensor 154 detects that the yarn end has been drawn to the upper yarn guide pipe 26 side, the electromagnetic valve 152 is closed.
  • the suction port 26b of the upper thread guide pipe 26 is opened, the thread end of the pulled-out thread is sucked and captured, and the captured thread end is gripped by the clamp portion 26c. Then, while the winding arm 75 is rotated at a low speed, the upper thread guide pipe 26 holding the thread end by the clamp portion 26c is turned about 180 ° about the shaft 26a, and the thread end on the thread storage body 70 side is rotated. After setting the splicer device 14, the low-speed rotation of the winding arm 75 is stopped.
  • the yarn end of the yarn Y existing around the yarn feeler 37 is sucked and captured by the lower yarn guide pipe 25, and the yarn Y is set in the splicer device 14. Then, the splicer device 14 performs a yarn splicing operation between the set yarn end on the accumulator 61 side and the yarn end on the yarn feeding unit 5 side.
  • the distal end portion of the winding arm 75 extends linearly in the tangential direction of the winding outer periphery of the winding portion in plan view. Since the yarn Y is guided in this tangential direction, the yarn end on the accumulator 61 side is also guided in the tangential direction by the winding arm 75 when the yarn Y is divided. Is done.
  • the yarn end guided by the yarn reservoir 70 does not collide with the roller 71 or the slope member 74 and jumps upward, and the lower end portion of the roller 71 where the yarn Y is guided by the winding arm 75 or It remains in the vicinity (winding portion) of the slope member 74, that is, at a position where it can be sucked from the opening 75b. Therefore, the yarn end can be reliably sucked and pulled out.
  • the yarn end is held at the lower end portion of the roller 71 or in the vicinity of the slope member 74, the yarn end is wound around and stored in a portion (storage portion) above the slope member 74 of the roller 71.
  • the yarn end can be sucked without affecting the yarn Y.
  • the opening 75 b of the winding arm 75 is inclined with respect to the straight portion 75 a and extends along the circumferential direction of the yarn reservoir 70, so that the opening area of the opening 75 b can be reduced. It is larger than the area, and comes closer to the surface of the lower end portion of the roller 71 and the winding auxiliary surface 74a, and the yarn end can be sucked more reliably.
  • the yarn Y wound around the roller 71 is viewed in a plan view (viewed from the direction from the first end side to the second end side).
  • the winding shape is substantially hexagonal, and the wound yarn Y is positioned inside the portion between the rollers 71 than the portion hanging on the rollers 71. Therefore, when the yarn end is located between the rollers 71, the distance between the winding arm 75 and the yarn end is larger than when the yarn end is located on the roller 71, There is a possibility that the yarn Y cannot be sucked.
  • the slope member 74 is provided between the six rollers 71, and the surface of the lower end portion of the roller 71 and the winding auxiliary surface 74a of the slope member 74 are virtual circles. Since the surface extending substantially continuously along the circumference R is formed, the winding shape of the yarn Y wound around the roller 71 and the slope member 74 by the winding arm 75 is substantially circular. Become. Therefore, when the yarn end is located on the roller 71 and when the yarn end is located on the slope member 74, the distance between the winding arm 75 and the yarn end is substantially the same. Yes. Accordingly, the yarn Y can be sucked from the yarn reservoir 70 more reliably.
  • the surface of the lower end portion of the roller 71 and the winding auxiliary surface 74a form a surface extending substantially continuously along the virtual circumference R, and the yarn wound around the yarn reservoir 70 at the time of yarn division. Since the end comes on either the surface of the roller 71 or the winding auxiliary surface 74a, the yarn end can be sucked more reliably than when the yarn end is in the air.
  • a winding mechanism for winding the yarn Y around the yarn reservoir 70 and a drawer for sucking and pulling out the yarn end of the yarn Y wound around the yarn reservoir 70
  • the winding arm 75 constituting the mechanism extends in a direction (tangential direction) along the outer periphery of the yarn reservoir 70 in a plan view, and the opening 75b is inclined with respect to the straight portion 75a.
  • the drawing auxiliary portion for facilitating the suction of the yarn Y that is, the drawing operation of the yarn Y, by making the opening area larger than the area of the internal flow path 128 by extending in the circumferential direction of 70. Doubles as
  • the slope member 74 that makes the winding shape of the yarn Y substantially circular also constitutes a drawing auxiliary portion for facilitating the successful pulling operation of the yarn Y.
  • an accumulator 261 is provided instead of the accumulator 61 (see FIG. 2).
  • the accumulator 261 is different from the accumulator 61 in that the shape of the winding arm 275 is different from that of the winding arm 75 (see FIG. 2) and that the annular member 201 is provided.
  • the winding arm 275 extends in the direction substantially perpendicular to the outer circumferential direction of the yarn reservoir 70 in plan view. Moreover, the opening 275b of the winding arm 275 has the same cross-sectional area as the internal flow path 228.
  • the annular member 201 is a thin plate made of an elastic material such as rubber, and is disposed so as to surround the lower end portion of the roller 71 and the upper end portion of the slope member 74.
  • the surface of 71 and the winding auxiliary surface 74a of the slope member 74 are arranged in contact with each other.
  • a gap smaller than the diameter of the yarn Y is provided between the inner peripheral end of the annular member 201 and the roller 71 and the slope member 74.
  • the annular member 201 is fixed to a frame (not shown) of the accumulator 261.
  • the entire annular member 201 is made of an elastic material.
  • the annular member 201 only needs to be made of an elastic material at least at a portion including the inner peripheral end thereof.
  • the annular member 201 is arrange
  • the yarn Y that moves upward (toward the storage portion) contacts the annular member.
  • the yarn Y since the tension is applied to the yarn Y by the first tension applying device 41, as shown in FIG. 6A, the yarn Y is elastically deformed by the annular member 201 made of an elastic material. Push and move upwards.
  • the winding arm 275 is also stopped. However, until the winding arm 275 stops, the yarn end on the accumulator 261 side is moved to the winding arm. It is guided to the yarn reservoir 70 by 275. At this time, the yarn end is guided in a direction substantially orthogonal to the surface of the roller 71 or the winding auxiliary surface 74a of the slope member 74 in a plan view. Therefore, the yarn end may collide with the surface of the roller 71 or the slope member 74 and try to jump upward.
  • the annular member 201 prevents the yarn end from jumping upward, and the yarn end is held near the lower end of the roller 71 or the slope member 74. Thereby, the yarn end can be reliably sucked from the winding arm 275.
  • the annular member 201 in place of the winding arm 75 (see FIG. 2), constitutes the drawer auxiliary portion according to the present invention.
  • an accumulator 361 is provided instead of the accumulator 261 (see FIG. 4) of the second embodiment.
  • the accumulator 361 has a point that six plate members 301 are provided instead of the slope member 74 (see FIG. 4), and a yarn end from each yarn Y wound around the yarn reservoir 70 around each plate member 301.
  • the point different from the accumulator 261 is that a yarn end separation brush 302 for separation is provided.
  • the six plate members 301 (winding shape adjusting members, plate-like members) are arranged between the six rollers 71 so that the surface direction thereof is parallel to the radial direction of the yarn reservoir 70 in plan view.
  • the outer peripheral end of the plate member 301 is located at substantially the same position as the outer peripheral end of the roller 71 in the radial direction of the yarn reservoir 70.
  • the plate member 301 is long enough to face at least the lower end of the roller 71 around which the yarn Y is wound by the winding arm 275 with respect to the vertical direction (the direction perpendicular to the plane of FIG. 7).
  • the yarn end separation brush 302 is a brush whose tip portion 302a (hair portion) is made of an elastic material, and the tip portion protrudes outside the plate member 301 in the radial direction of the yarn reservoir 70.
  • the plate members 301 are arranged.
  • the thread end separation brush 302 is provided on each of the six plate members 301, but the thread end separation brush 302 may be provided on only some of the plate members 301. Good.
  • yarn Y is wound by the winding arm 275 so that the lower end part of the roller 71 and the board member 301 may be straddled.
  • the yarn Y moves upward by the rotation of the roller 71, the yarn Y comes into contact with the tip end portion 302 a of the yarn end separation brush 302 protruding from the plate member 301.
  • the yarn Y elastically deforms the tip end portion 302a of the yarn end separation brush 302 as shown in FIG. To move upwards.
  • the yarn end wound around the yarn reservoir 70 comes into contact with the tip of the yarn end separation brush 302, but no tension is applied to the yarn end, and the yarn end separation brush. There is not enough force to elastically deform and push the tip 302a of 302. Therefore, as shown in FIG. 8B, the yarn end does not move above the yarn end separation brush 302.
  • the yarn end is separated from the wound yarn Y and stays in the vicinity of the lower end portion of the roller 71 or the plate member 301, and the yarn end can be reliably sucked from the winding arm 275.
  • the winding shape of the yarn Y is a substantially regular hexagon.
  • the roller 71 and the plate member are wound. Since the yarn Y is wound across 301, the wound shape of the wound yarn Y becomes a substantially regular dodecagon and approaches a circular shape.
  • the distance between the winding arm 75 and the yarn end does not increase, and the yarn end can be reliably sucked. it can.
  • the plate member 301 and the yarn end separation brush 302 are the drawing auxiliary portion according to the present invention.
  • an accumulator 461 is provided instead of the accumulator 261 (see FIG. 4).
  • the accumulator 461 is different from the accumulator 261 in that the accumulator 461 includes a yarn end scraping brush 401.
  • the yarn end scraping brush 401 has a tip 401a (hair portion) made of an elastic material, and as shown in FIG. 9, the direction of rotation when the winding arm 275 is wound (counterclockwise in FIG. 9). In the state where the winding arm 275 is not rotating, the tip 401 a is in contact with the lower end of the roller 71 or the slope member 74.
  • the winding arm 275 is rotated around the rotation axis C1 (the winding center of the yarn Y in the yarn storage body 70) (the winding arm 275 and the yarn storage body 70 are relatively rotated), and the yarn storage body 70 is rotated.
  • the rotational speed of the winding arm 275 is fast to some extent (for example, about 3000 rpm), so that the tip 401a of the yarn end scraping brush 401 is wound as shown in FIG. It falls down due to the wind pressure generated by the rotation of the attached arm 275 and is separated from the roller 71 and the slope member 74. Thereby, it can prevent that the front-end
  • the rotation speed of the winding arm 275 is slow (for example, 50 rpm or less). Therefore, the tip end portion 401a of the yarn end scraping brush 401 does not fall down due to the wind pressure, and is in contact with the roller 71 and the slope member 74 as shown in FIG.
  • the yarn end of the yarn Y wound around the yarn reservoir 70 may be in a state of being stuck to the yarn Y already wound around the yarn reservoir 70.
  • the yarn end stuck to the yarn Y can be scraped off. Thereby, the yarn end can be reliably sucked from the winding arm 275.
  • the yarn end scraping brush 401 is provided on the winding arm 275, the yarn end scraped by the yarn end scraping brush 401 comes in the vicinity of the winding arm 275. Therefore, the yarn end can be reliably sucked from the winding arm 275.
  • the yarn end scraping brush 401 constitutes a drawing auxiliary portion according to the present invention.
  • the winding arm 275 provided with the yarn end scraping brush 401 rotates along the outer periphery of the yarn storage body 70 as in the case of the fourth embodiment, the winding arm 275 is relatively simple.
  • the yarn storage body 70 is separated from the yarn storage body 70 when the yarn Y is wound around the yarn storage body 70, and the yarn storage body 70 is pulled out when the yarn end is pulled out before yarn joining.
  • the yarn end scraping member to be contacted can be configured.
  • the accumulator is provided with the yarn reservoir 70 (see FIG. 2 and the like) including the six rollers 71 around which the yarn Y is wound.
  • the accumulator 561 includes a rotary storage drum 571, a rotary storage drum motor 572, a yarn guide member 573, a blow-down nozzle 574, a yarn path forming member 575, and the like.
  • the rotary storage drum 571 is a drum that can rotate around the rotation axis C2. As will be described later, when the rotary storage drum 571 is rotated in one direction, the yarn Y is unwound from the yarn supplying bobbin 21 (see FIG. 1). The yarn Y that has been unwound and wound around the rotary storage drum 571 is stored in the rotary storage drum 571. That is, in the fifth embodiment, the rotary storage drum 571 constitutes both the yarn storage body and the winding mechanism according to the present invention.
  • the rotary storage drum 571 has tapered portions 571a and 571b whose diameters become smaller toward the opposite end portions, respectively, and between the tapered portion 571a and the tapered portion 571b.
  • This portion is a straight portion 571c having a substantially constant diameter.
  • a rubber ring 581 such as a rubber band or an O-ring is wound around the upper right end portion of the straight portion 571c of the rotary storage drum 571, and the rubber ring 581 rotates integrally with the rotary storage drum 571. Then, as will be described later, the yarn Y drawn from the rotary storage drum 571 passes through the gap between the straight portion 571c and the rubber ring 581 and is sent toward the winding portion 6 through the yarn guide 582. At this time, the yarn Y is fed between the straight portion 571c and the rubber ring 581 while being nipped between the straight portion 571c and the rubber ring 581. Further, since the yarn Y is sandwiched between the straight portion 571c and the rubber ring 581, a balloon is generated in the yarn Y that is unwound from the rotary storage drum 571 and travels toward the winding portion 6. Can be prevented.
  • the upper right end portion of the rotary storage drum 571 is the tapered portion 571b, so that the rubber ring 581 is prevented from falling off from the rotary storage drum 571 to the upper right.
  • the rotary storage drum motor 572 (rotation mechanism) is a position-controllable motor such as a DC brushless motor, a stepping motor, or a servo motor, and rotates the rotary storage drum 571 in both directions.
  • the yarn guide member 573 is a tubular member in which an internal flow path 573a is formed, and the tip portion of the yarn guide member 573 is a rotary storage drum 571 as viewed from the direction of the rotation axis C2.
  • the linear portion 573b extends linearly in the tangential direction, and is bent in the radial direction of the rotary storage drum 571 at the end opposite to the linear portion 573b and connected to the blow-down nozzle 574.
  • An opening 573c is formed at the tip of the straight portion 573b.
  • the opening 573c is inclined with respect to the linear portion 573b and extends along the circumferential direction of the tapered portion 571a.
  • the blow-down nozzle 574 is disposed on the right side of the yarn guide member 573 in the drawing, and opens into the yarn channel 546 connected to the internal channel 573a of the yarn guide member 573, and the yarn channel 546. And a blow-down channel 547 formed to be inclined with respect to the channel 546.
  • a pressure air source 551 is connected to the downflow passage 547 via a connection pipe 549 and a connection pipe 550, and an electromagnetic valve 552 is provided between the connection pipe 549 and the connection pipe 550.
  • the yarn path forming member 575 forms the yarn path 528, and is disposed between the suction port 26b of the upper thread guide pipe 26 and the blow-down nozzle 574.
  • the yarn path 528 extends almost directly from the lower end located immediately above the suction port 26b of the upper yarn guide pipe 26, and at its upper end, bends to the upper left in FIG. Is opposed to the lower right end of the yarn flow path 546 of the blow-down nozzle 574.
  • the rotary storage drum 571 and the rotary storage drum motor 572 are connected to each other, the yarn guide member 573, the blow-down nozzle 574, the yarn path forming member 575, the connection pipes 549 and 550, the pressure air source.
  • a combination of the 551 and the electromagnetic valve 552 corresponds to the drawing mechanism according to the present invention.
  • a pull-out sensor 554 capable of detecting that the yarn end of the yarn Y wound around the accumulator 561 is actually pulled out to the yarn joining portion 8 side is provided at the lower end of the yarn path forming member 575. Yes.
  • the yarn Y is unwound from the yarn supplying bobbin 21, and the yarn Y is set as shown in FIG. 11 in order to wind the unwound yarn Y around the winding bobbin 22.
  • the rotary storage drum motor 572 rotates the rotary storage drum 571 and the winding drum 24 (see FIG. 1).
  • the yarn Y is unwound from the yarn supplying bobbin 21 (see FIG. 1), and the unwound yarn Y is in the direction of the rotation axis C2 of the rotary storage drum 571 (the direction from the first end side to the second end side). ) Is guided in the tangential direction of the rotary storage drum 571 and wound around the taper portion 571a (winding portion). The yarn Y wound around the taper portion 571a moves toward the straight portion 571c along the inclined surface of the taper portion 571a, and is stored in the straight portion 571c (storage portion).
  • the rotary storage drum 571 has an end on the taper portion 571b side from the end on the taper portion 571a side (first end) along the direction of the rotation axis C2 (direction from the first end side toward the second end side).
  • the yarn Y is stored in a state where the yarn Y is wound toward the (second end).
  • the rotary storage drum 571 is rotated at a low speed in the direction opposite to the time when the yarn Y is wound, and the electromagnetic valve 552 is opened, so that the internal flow path 573a inside the yarn guide member 573, the yarn, as described above.
  • An air flow from the rotary storage drum 571 side toward the upper thread guide pipe 26 side is generated in the flow path 546 and the blow-down flow path 547.
  • the yarn end of the yarn Y wound around the rotary storage drum 571 (tapered portion 571a) is sucked from the opening 573c, and the sucked yarn ends are taken as the internal flow path 573a, the thread flow path 546, and the blow-down flow path 547. And is pulled out to the upper thread guide pipe 26 side.
  • the drawing sensor 154 detects that the yarn end has been drawn to the upper yarn guide pipe 26 side, the electromagnetic valve 552 is closed.
  • the upper yarn guide pipe 26 and the lower yarn guide pipe 25 are used to bring the yarn end of the yarn Y on the rotary storage drum 571 side and the periphery of the yarn feeler 37, respectively.
  • the yarn end of the existing yarn Y is set in the splicer device 14 and the splicing operation is performed by the splicer device 14.
  • the rotary storage drum 571 is rotated, and the winding of the yarn Y around the rotary storage drum 571 is resumed.
  • the yarn stored in the rotary storage drum 571 is not stopped without stopping the winding of the yarn Y onto the winding bobbin 22 during the yarn splicing. Y is pulled out and the winding of the yarn Y onto the winding bobbin 22 is continued.
  • the linear portion 573b of the yarn guide member 573 is in the tangential direction of the rotary storage drum 571 as viewed from the direction of the rotation axis C2. Since the yarn Y extends in a straight line and is guided in this tangential direction, the yarn end on the rotary storage drum 571 side is also moved by the yarn guide member 573 when the yarn Y is divided as in the first embodiment. It will be guided in the tangential direction.
  • the yarn end guided to the rotary storage drum 571 does not collide with the taper portion 571a and jumps up to the straight portion 571c side (upper right in the figure), and is guided by the yarn guide member 573.
  • the yarn end In the vicinity of the tapered portion 571a, that is, in a position where suction can be performed from the opening 573c of the yarn guide member 573. Therefore, the yarn end can be reliably sucked.
  • the opening 573c of the yarn guide member 573 is inclined with respect to the linear portion 573b and extends along the circumferential direction of the rotary storage drum 571 (tapered portion 571a), whereby the opening area of the opening 573c is It is larger than the area of the internal flow path 573a and comes to a position close to the tapered portion 571a, so that the yarn end can be sucked more reliably.
  • the opening 573c at the tip thereof extends along the circumferential direction of the taper portion 571a, as viewed from the direction of the rotation axis C2. Also serving as a drawer auxiliary part according to the present invention.
  • an accumulator 661 is provided instead of the accumulator 561 (see FIG. 11).
  • the accumulator 661 is different from the accumulator 561 in that the shape of the yarn guide member 673 is different from that of the yarn guide member 573 (see FIG. 11) and that the annular member 601 is provided.
  • the yarn guide member 673 is not bent in the middle, and extends straight from the connecting portion with the blow-down nozzle 574 in a direction perpendicular to the surface of the tapered portion 571a. Yes.
  • the annular member 601 is a thin plate member made of an elastic material similar to the annular member 201 (see FIG. 4), and is disposed so as to surround the upper end portion of the tapered portion 571a. Further, the inner peripheral end of the annular member 601 is in contact with the tapered portion 571a. Alternatively, a gap smaller than the diameter of the yarn Y is formed between the inner peripheral end of the annular member 601 and the tapered portion 571a.
  • the annular member 601 should just be comprised by the elastic material at least the part including the inner peripheral end similarly to the annular member 201 (refer FIG. 4).
  • the yarn Y wound around the tapered portion 571a is displaced by elastically deforming the annular member 601 and moves toward the straight portion 571c.
  • the yarn end guided to the taper portion 571a is guided in a direction perpendicular to the surface of the taper portion 571a. Therefore, the yarn end collides with the taper portion 571a and the straight portion 571c side. May try to jump up.
  • the tension is not applied to the yarn end that is about to jump upward, and there is not enough force to elastically deform and push the annular member 601. Therefore, in the case of the second embodiment Similarly, the annular member 601 prevents the yarn end from jumping up toward the straight portion 571c. Thereby, the yarn end is held in the vicinity of the tapered portion 571a, and the yarn end can be reliably sucked from the yarn guide member 673. That is, in the sixth embodiment, the annular member 601 serves as a drawer auxiliary portion according to the present invention.
  • the accumulator 761 according to the seventh embodiment is the same as the accumulator 661 according to the sixth embodiment except that a thread end separation brush 701 is provided instead of the annular member 601.
  • the yarn end separation brush 701 has a tip portion 701a (hair portion) made of an elastic material similar to that of the yarn end separation brush 302 (see FIG. 7), and is formed on the surface of the tapered portion 571a as shown in FIG.
  • the tip portion 701a protrudes from the surface of the tapered portion 571a by being disposed in the recessed portion 571d.
  • the yarn Y wound around the taper portion 571a is displaced by elastically deforming the tip portion of the yarn end separation brush 701, and is moved to the straight portion 571c. Move towards.
  • the yarn end wound around the taper portion 571a comes into contact with the tip portion 701a of the yarn end separation brush 701, but tension is applied to the yarn end.
  • the yarn end does not move to the straight portion 571c side of the yarn end separation brush 701 as in the case of the third embodiment.
  • the taper portion 571a is fastened. That is, in the seventh embodiment, the yarn end separation brush 701 is a drawing auxiliary portion according to the present invention.
  • an accumulator 861 according to the eighth embodiment includes a yarn end scraping brush 801 instead of the annular member 601 in the accumulator 661 according to the sixth embodiment.
  • the yarn end scraping brush 801 has a tip portion 801a (hair portion) made of an elastic material. 673.
  • the thread end scraping brush 801 is movable in both directions along the thread guide member 673 as indicated by an arrow in FIG.
  • the taper portion 571a can be contacted and separated.
  • the thread end scraping brush 801 can be moved in this way, unlike the fourth embodiment, the thread guide member 673 provided with the thread end scraping brush 801 does not rotate by itself, but the tip 801a. This is because it cannot be separated from the taper portion 571a by the wind pressure.
  • the rotary storage drum 571 is rotated around the rotation axis C2 (the winding center of the yarn Y in the rotary storage drum 571) (relative rotation with respect to the yarn guide member 573 and the rotary storage drum 571).
  • the yarn end scraping brush 801 is moved to a position where the tip portion does not contact the taper portion 571a, and when the yarn end wound around the taper portion 571a is pulled out, the yarn end The end scraping brush 801 is moved to a position where the tip portion contacts the tapered portion 571a.
  • the tip end portion 801a of the yarn end scraping brush 801 is prevented from coming into contact with the wound yarn Y and damaging the yarn Y. Can do. Further, when pulling out the yarn end, the yarn end can be reliably sucked by scraping the yarn end stuck to the yarn Y wound around the taper portion 571a by the yarn end scraping brush 801.
  • the yarn end scraping brush 801 corresponds to the drawing auxiliary portion according to the present invention.
  • the linear portion 75 c located at the tip of the winding arm 75 extends in the radial direction of the yarn storage body 70.
  • the axis A can be rotated around the axis A, whereby the direction of the straight portion 75c can be changed.
  • the winding arm 75 is rotated to rotate the yarn.
  • the winding direction of the yarn Y when winding the yarn Y around the reservoir 70 is limited to one direction (in the first embodiment, the counterclockwise direction in FIG. 3).
  • the linear portion 573d of the yarn guide member 573 is configured to be rotatable about an axis A2 extending in the radial direction of the rotary storage drum 571.
  • the position of the straight line portion 573d can be switched between the position indicated by the solid line in the figure and the position indicated by the two-dot chain line in the figure rotated about 180 degrees around the axis A2 from this position.
  • the yarn Y may be wound around the rotary storage drum 571 in either direction (Modification 2).
  • the opening area 75 b of the winding arm 75 extends along the circumferential direction of the yarn reservoir 70, so that the opening area is larger than the area of the internal flow path 128.
  • the opening 75 b may extend in a direction shifted from the circumferential direction of the yarn reservoir 70, and the cross-sectional area thereof may be larger than the cross-sectional area of the internal flow path 128.
  • the opening 75 b may extend in the radial direction of the yarn reservoir 70, so that the opening area may be substantially the same as the area of the internal flow path 128.
  • the annular member 201 has an inner peripheral end that is in contact with the roller 71 and the slope member 74 or a gap that is smaller than the diameter of the yarn Y between the roller 71 and the slope member 74.
  • the annular member 201 may be arranged so that a gap larger than the diameter of the yarn Y is formed between the inner peripheral end thereof and the roller 71 and the slope member 74.
  • the annular member 601 may be arranged so that a gap larger than the diameter of the yarn Y is formed between the inner peripheral end and the tapered portion 571a.
  • the yarn end separation brushes 302 and 701 are provided to separate the yarn end from the wound yarn Y.
  • the member for separating the yarn end is a brush. As long as it can be pushed away by the wound yarn Y, it may be another member such as a thin plate-shaped member made of an elastic material.
  • the yarn end is limited to a portion made of an elastic material that can be pushed away by the wound yarn Y. Absent.
  • a yarn end scraping brush 401 is provided to scrape the yarn end from the yarn Y wound around the roller 71 and the slope member 74.
  • the yarn is wound by wind pressure.
  • the tip end portion 401a of the end scraping brush 401 falls and does not come into contact with the roller 71 and the slope member 74.
  • the present invention is not limited to this, and the yarn end scraping brush 401 is not limited to the yarn end scraping brush of the eighth embodiment. Similar to the output brush 801, it may be movable toward and away from the yarn reservoir 70 by moving along the winding arm 75.
  • the member for scraping the yarn end is not limited to the brush, and the yarn end can be scraped off, for example, a member having a thin tip. Another possible member may be used.
  • the tip ends 401a and 801a of the yarn end scraping brushes 401 and 801 are connected to the yarn storage body 70 and
  • the tip portion 401a, 801a may always be in contact with the yarn storage body 70 and the rotary storage drum 571.
  • the slope member 74 is disposed between the rollers 71.
  • the plate member 301 is disposed between the rollers 71.
  • the plate member 301 may be disposed between the rollers 71, and in the third embodiment, the slope member 74 may be disposed between the rollers 71. .
  • the single plate member 301 is not limited to be disposed between the rollers 71, and a plurality of plate members 301 are disposed between the rollers 71. It may be arranged.
  • a slope member 74 such as a driven roller between the rollers 71 is used.
  • a member other than the plate member 301 may be arranged.
  • a slope member 74 or a plate for bringing the winding shape of the yarn Y close to a circle as a drawing auxiliary portion In addition to the member 301 being provided, only one of the winding arm 75 having the linear portion 75a, the annular member 201, the yarn end separation brush 302, and the yarn end scraping brush 401 is provided. However, it is not limited to this.
  • neither the slope member 74 nor the plate member 301 is provided as the drawing auxiliary portion, and any one of the winding arm 75, the annular member 201, the yarn end separation brush 302, and the yarn end scraping brush 401 is provided. Only may be provided. Two or more of the winding arm 75, the annular member 201, the yarn end separation brush 302, and the yarn end scraping brush 401 may be provided.
  • the yarn guide member 573 having the straight portion 573b, the annular member 601, and the yarn end separation brush are used as the drawing auxiliary portion. Only one of 701 and the yarn end scraping brush 801 is provided, but two or more of these may be provided.
  • the yarn reservoir that stores the yarn Y is provided with a plurality of rollers 71 and the case that is provided with the rotary storage drum 571 has been described.
  • a substantially cylindrical member that does not rotate itself such as another member that can store the yarn Y in a state of being wound from one end to the second end along one direction. Good.
  • the winding arms 75 and 175 and the yarn guide members 573 and 673 are tubular members, but these members are not limited to being tubular.
  • the yarn ends are sucked using the winding arms 75 and 175 for guiding the yarn Y and the yarn guide members 573 and 673 when the yarn Y is wound.
  • the present invention is not limited thereto, and a dedicated member for sucking the yarn end may be provided separately from the winding arms 75 and 175 and the yarn guide members 573 and 673.
  • the yarn end may be sucked at a position other than the lower end of the yarn reservoir 70 and the vicinity of the tapered portion 571a where the yarn Y is guided when the yarn Y is wound.
  • the yarn end may be fastened in the vicinity of the suction position of the yarn end by a drawing auxiliary portion.
  • the yarn end wound around the yarn storage body 70 or the rotary storage drum 571 is drawn out by suction.
  • the present invention is not limited to this.
  • the yarn end may be grasped and pulled out.
  • the yarn splicing section 8 is not provided, and the operator may manually perform the splicing operation.
  • the present invention is applied to the yarn winding device that temporarily stores the yarn Y unwound from the yarn supplying bobbin 21 in the yarn storage body, draws the yarn Y stored in the yarn storage body, and winds the yarn Y on the winding bobbin 22.
  • the present invention is not limited to this, but the yarn drawn out from the yarn supply unit is temporarily stored in the yarn reservoir, and the yarn stored in the yarn reservoir is pulled out to take up the winding bobbin 22. It is also possible to apply the present invention to a yarn accumulating / drawing device other than the winding device that performs the above process.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Forwarding And Storing Of Filamentary Material (AREA)
  • Replacing, Conveying, And Pick-Finding For Filamentary Materials (AREA)
  • Spinning Or Twisting Of Yarns (AREA)

Abstract

Grâce à l'invention, une extrémité d'un fil retenu sur une unité de retenue de fil peut être attirée vers l'extérieur de manière fiable. Lorsqu'un fil (Y) amené d'une unité d'alimentation en fil à un dispositif (70) de retenue de fil est séparé du fil (Y) retenu par enroulement sur le dispositif (70) de retenue de fil, un bras d'enroulement tubulaire (75) enroulant le fil (Y) sur le dispositif (70) de retenue de fil est commandé de manière à générer un flux d'air en direction de l'unité d'alimentation en fil de façon à ce que l'extrémité du fil enroulée sur le dispositif (70) de retenue de fil puisse être attirée vers l'extérieur par aspiration, puis l'extrémité du fil est jointe à l'extrémité du fil côté unité d'alimentation en fil. Une partie de pointe du bras d'enroulement (75) s'étend dans une direction tangentielle par rapport au dispositif (70) de retenue de fil dans une vue en plan. Dans le dispositif (70) de retenue de fil, le fil (Y) est enroulé par le bras d'enroulement (75) en travers d'une partie d'extrémité inférieure de six rouleaux (71) disposés le long d'une circonférence virtuelle (R) et d'une surface de support d'enroulement (74a) d'éléments inclinés (74) situés entre les rouleaux (71). Une surface supérieure de la partie d'extrémité inférieure des rouleaux (71) et la surface de support d'enroulement (74a) forment un plan s'étendant de manière pratiquement continue le long de la circonférence virtuelle (R) de telle sorte que le fil (Y) peut être enroulé de façon à obtenir une forme pratiquement circulaire dans une vue en plan.
PCT/JP2012/053034 2011-03-09 2012-02-10 Appareil de retenue/d'attraction de fil et appareil d'enroulement de fil WO2012120963A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2011-050987 2011-03-09
JP2011050987A JP2012188185A (ja) 2011-03-09 2011-03-09 糸貯留引出装置及び糸巻取装置

Publications (1)

Publication Number Publication Date
WO2012120963A1 true WO2012120963A1 (fr) 2012-09-13

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PCT/JP2012/053034 WO2012120963A1 (fr) 2011-03-09 2012-02-10 Appareil de retenue/d'attraction de fil et appareil d'enroulement de fil

Country Status (2)

Country Link
JP (1) JP2012188185A (fr)
WO (1) WO2012120963A1 (fr)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111908274B (zh) * 2020-07-11 2022-03-18 安徽诺乐知识产权服务有限公司 一种纺织机储纱装置

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09255232A (ja) * 1996-03-19 1997-09-30 Murata Mach Ltd パッケージ糸端吸引保持装置
JP2010047360A (ja) * 2008-08-21 2010-03-04 Murata Machinery Ltd 繊維機械

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09255232A (ja) * 1996-03-19 1997-09-30 Murata Mach Ltd パッケージ糸端吸引保持装置
JP2010047360A (ja) * 2008-08-21 2010-03-04 Murata Machinery Ltd 繊維機械

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