WO2011040542A1 - 糸巻取装置 - Google Patents
糸巻取装置 Download PDFInfo
- Publication number
- WO2011040542A1 WO2011040542A1 PCT/JP2010/067113 JP2010067113W WO2011040542A1 WO 2011040542 A1 WO2011040542 A1 WO 2011040542A1 JP 2010067113 W JP2010067113 W JP 2010067113W WO 2011040542 A1 WO2011040542 A1 WO 2011040542A1
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- WO
- WIPO (PCT)
- Prior art keywords
- yarn
- winding
- rollers
- roller
- guide member
- Prior art date
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Classifications
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- 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
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- 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
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- 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 winding device that winds a spun yarn unwound from a yarn feeding bobbin as a package.
- Yarn produced by a spinning machine or the like is wound around a yarn feeding bobbin and conveyed to a yarn winding device.
- the yarns of the plurality of yarn feeding bobbins conveyed are joined together by a predetermined yarn joining device to generate a package having a predetermined length.
- a suction arm that catches the yarn end on the winding bobbin side and guides it to the yarn joining device, and a yarn end on the yarn feeding bobbin side that catches and guides it to the yarn joining device
- a configuration of a yarn winding device including a relay pipe is conventionally known.
- the yarn winding device when yarn breakage or yarn cutting occurs during the winding operation, the upper yarn is wound around the winding bobbin that rotates inertially, and the lower yarn is held in an appropriate trap means. Is done. Then, the yarn joining operation is performed as follows. That is, the winding bobbin that has stopped rotating is reversely rotated, and the yarn end of the upper yarn to be unwound is captured by sucking it with the tip of the suction arm, and this is guided to the yarn joining device. At substantially the same time, the yarn end of the lower yarn held by the trap means is caught by sucking it with the tip of the relay pipe, and the lower yarn is unwound from the yarn feeding bobbin and guided to the yarn joining device. After that, the yarn ends of the upper yarn and the lower yarn are joined by the yarn joining device, and the winding operation is started.
- the above-described winding bobbin is stopped by a lift-up mechanism and a package brake mechanism provided in the yarn winding device.
- the lift-up mechanism raises the cradle and separates the take-up bobbin from the take-up drive unit.
- the package brake mechanism stops the rotation of the winding bobbin held by the cradle at the same time that the cradle is raised by the lift-up mechanism. As a result, the winding bobbin stops rotating and the winding operation is interrupted.
- Patent Document 1 a winder for generating one package from a plurality of color packages is described in Patent Document 1, for example.
- the winder described in Patent Literature 1 is configured to manufacture a wound yarn package in which various colored yarns and yarn types are continuously wound in a longitudinal direction while measuring each length to a predetermined length. Specifically, this winder selects at least one yarn from a plurality of packages of different colors and a plurality of packages of a plurality of yarn types by a selection device, and performs yarn splicing by the yarn splicing device. It winds around a package continuously via a yarn storage device that performs storage simultaneously.
- Patent Document 2 discloses a yarn winding method and apparatus that performs winding without interrupting the winding operation when yarn breakage occurs. This device described in Patent Document 2 stores the yarn unwound from the bobbin, and when yarn breakage occurs, continues winding using the stored yarn until the yarn splicing operation is completed. Is described.
- the wound yarn package described in Patent Document 1 realizes a configuration in which the yarn is continuously wound by a configuration in which a storage portion is provided in the yarn.
- the winder of Patent Document 1 is a configuration for winding a further package using a plurality of packages wound by a yarn winding device having a yarn defect removing mechanism that is a subject of the present invention. It is not equipped with the structure which removes. Therefore, when winding the yarn feeding bobbin including the yarn defect, the portion including the yarn defect is wound around the package as it is. Further, it is difficult to remove the yarn defect due to the configuration of the yarn joining device.
- Patent Document 2 the yarn winding method and apparatus described in Patent Document 2 are provided with a storage container for storing yarn, so that the winding operation of the package is continued even when yarn breakage occurs.
- this yarn winding method and apparatus when yarn breakage or defect removal work occurs, defect removal and yarn splicing are efficiently performed without depleting the stored yarn in order to continue the winding operation of the package. is important.
- Patent Document 2 does not have a specific description regarding yarn joining and defect removal while continuing the winding operation of the package. Further, since there is no mechanism for aligning and storing the yarn, there is a concern that the yarn may be entangled.
- the present invention has been made in view of the above circumstances, and an object thereof is to provide a yarn winding device capable of continuously winding a yarn from the start to the end of winding of the package.
- a yarn winding device includes a yarn feeding unit that unwinds a spun yarn from a yarn feeding bobbin, a yarn winding unit that winds the spun yarn as a package, and the yarn feeding unit and the yarn winding unit.
- a yarn storage unit that is provided between the yarn storage unit and stores the spun yarn.
- the yarn storage unit winds and stores the spun yarn and stores the spun yarn around the yarn storage unit.
- the storage body is composed of a plurality of rollers that are arranged so that their axes are positioned on the first virtual circumference and are rotatably provided. It is.
- the spun yarn wound around the plurality of rollers is conveyed by the rotation of the roller, the burden (frictional force) applied to the spun yarn is small, and the deterioration of the quality of the yarn is reduced. Further, since the spun yarn is wound around a plurality of rollers by a yarn winding mechanism and stored in an aligned manner, the yarn is not entangled in the yarn accumulating portion and winding of the yarn is not interrupted.
- a yarn winding device is the yarn winding device according to the first aspect of the present invention, wherein the yarn storage section rotates a roller driving motor that rotates at least one of the plurality of rollers as a driving roller.
- the yarn winding unit further comprises a spun yarn wound around the plurality of rollers by arranging the rotation shafts of the plurality of rollers so as to be inclined in the circumferential direction of the first virtual circumference. Is conveyed in the unwinding direction in which the spun yarn is unwound.
- the yarn is wound around the plurality of rollers by the yarn winding mechanism by rotating the driving roller.
- the spun yarn is sequentially conveyed and moves in a direction perpendicular to the surface surrounded by the first virtual circumference (hereinafter referred to as a feeding direction). Therefore, the yarn does not stay in a part of the yarn reservoir and the yarn storage is not delayed.
- a yarn winding device is the yarn winding device according to the second aspect of the present invention, wherein the yarn storage section changes the winding interval of the spun yarn wound around the plurality of rollers. It further comprises a changing means.
- the winding interval (interval in the feeding direction) of the spun yarn wound around the plurality of rollers can be changed according to the type of the spun yarn wound by the yarn winding device.
- a yarn winding device is the yarn winding device according to the third aspect of the present invention, wherein the winding interval changing means has an angle changing mechanism for changing the inclination angle of each of the plurality of rollers. It is characterized by that.
- the moving speed of the spun yarn in the feeding direction by changing the inclination angle of the plurality of rollers, and thereby the spun yarn winding speed and the spun yarn feeding direction.
- the ratio with the moving speed of can be changed.
- the winding interval of the spun yarn can be changed by changing the ratio between the winding speed of the spun yarn and the moving speed of the spun yarn in the feeding direction.
- a yarn winding device is the yarn winding device according to the fourth invention, wherein the angle changing mechanism has at least one end of the plurality of rollers arranged around the first virtual circumference. It is a mechanism that moves in a direction.
- the inclination angle of the roller can be easily changed by moving at least one end of the plurality of rollers in the circumferential direction of the first virtual circumference.
- a yarn winding device is the yarn winding device according to the fourth or fifth aspect of the present invention, wherein the yarn winding mechanism has a spun yarn at a winding side end which is one end of the plurality of rollers. Is attached so that the winding-side end portions of the plurality of rollers are positioned on the first virtual circumference, and the other end portion of the majority of the plurality of rollers.
- a certain unwinding side end is arranged with reference to a second virtual circumference having a smaller diameter than the first virtual circumference, so that the majority of the rollers are inclined in the radial direction of the first virtual circumference. It is characterized by being arranged.
- the roller is inclined in the circumferential direction of the first imaginary circumference, assuming that the roller is not inclined in the radial direction, the center of the roller is located on the innermost side, and the portion closer to both ends is on the outer side. Will be located. Therefore, the winding circumference of the spun yarn wound around the central portion of the roller is the shortest, and the winding perimeter of the spun yarn wound around the portion near both ends becomes longer.
- the spun yarn is conveyed by a roller, it is difficult to convey the spun yarn from a portion where the roller is located to a portion located outside this portion.
- the range in which the spun yarn can be substantially wound is only between the end portion where the spun yarn is wound by the yarn winding means and the innermost portion. It becomes. That is, the spun yarn can only be wound around about half of the roller.
- the roller is inclined so that the end opposite to the side where the spun yarn is wound by the yarn winding means is inward of the end where the spun yarn is wound by the yarn winding means.
- the innermost portion of the roller is closer to the opposite end than the central portion.
- the winding side end and the unwinding side end of the majority of the rollers are arranged with reference to the first and second virtual circumferences, so that the majority of the rollers are uniformly inclined at an equal angle. Can do.
- the unwinding side end portion is arranged with reference to the second virtual circumference having a smaller diameter than the first virtual circumference where the winding side end portion is arranged, the spinning wound around the plurality of rollers
- the winding circumference of the yarn does not increase toward the unwinding direction in which the spun yarn is unwound by the yarn winding unit. Therefore, the yarn does not stay partly and the storage is not delayed.
- a yarn winding device is the yarn winding device according to the sixth invention, wherein the unwinding end portion of at least one of the rollers not included in the majority of the rollers is the first winding device. It is an adjusting roller for adjusting the winding circumferential length of the spun yarn to be wound, which is arranged based on the third virtual circumference having a diameter larger than the virtual circumference.
- the roller is positioned closer to the yarn winding side end within the range where the spun yarn can be wound, so the spun yarn conveyed by the roller is The spun yarn to be wound is conveyed from a portion where the winding perimeter of the spun yarn becomes longer to a portion where it becomes shorter. At this time, the spun yarn may be loosened.
- each end of the plurality of rollers is provided.
- the length of the spun yarn to be wound becomes uniform, and it is possible to prevent the spun yarn from being loosened as described above.
- a yarn winding device is the yarn winding device according to the seventh aspect of the present invention, wherein the adjustment roller is a driven roller.
- the roller drive motor rotates the adjustment roller together with the other rollers, the adjustment roller and the other rollers having different inclination angles with respect to the radial direction of the first and second virtual circumferences, There is a difference in the direction in which the spun yarn is to be conveyed, and as a result, the tension of the wound spun yarn may be uneven.
- the adjustment roller is a driven roller, and the adjustment roller only rotates following the movement of the spun yarn when the spun yarn is conveyed by the rotation of the other rollers.
- the tension applied to the wound spun yarn can be made uniform.
- a yarn winding device is a yarn winding device according to any one of the first to eighth inventions, and is configured to be rotatable around the plurality of rollers, with respect to the plurality of rollers.
- a guide member that guides the spun yarn; and a guide member drive motor that rotates the guide member; and the yarn winding mechanism is configured by the guide member and the guide member drive motor. It is characterized by.
- the yarn winding mechanism can be configured by the guide member and the guide member drive motor.
- a yarn winding device is a yarn winding device according to any of the third to eighth inventions, and is configured to be rotatable around the plurality of rollers.
- a guide member configured to guide the spun yarn; and the guide member is connected to the roller drive motor via a transmission mechanism so that the guide member and the roller drive motor are driven by the roller drive motor.
- the yarn winding mechanism is configured.
- the guide member drive motor for rotating the guide member also serves as the roller drive motor for rotating the roller, it is not necessary to provide the guide member drive motor and the roller drive motor separately, and the configuration of the apparatus is simple. Can be.
- a yarn winding device is the yarn winding device according to the tenth invention, wherein the winding interval changing means is provided in the transmission mechanism, and the roller driving motor, the driving roller, This is characterized in that a variable speed change mechanism capable of changing the ratio of the rotational speeds of the two is configured.
- a yarn winding device is the yarn winding device according to any of the third to eighth aspects of the present invention, and is configured to be rotatable around the plurality of rollers.
- a guide member that guides the spun yarn; and a guide member drive motor that rotates the guide member.
- the guide member and the guide member drive motor constitute the yarn winding mechanism.
- the interval changing means has a speed control mechanism for individually controlling the rotation speed of the roller drive motor and the rotation speed of the guide member drive motor.
- a yarn winding device is the yarn winding device according to any of the ninth to twelfth aspects of the invention, wherein the yarn accumulating portion sends the spun yarn wound around the plurality of rollers to the yarn supplying portion. It is further characterized by further comprising a thread drawing mechanism that pulls out to the side.
- the yarn storage unit is provided between the yarn supply unit and the yarn winding unit, the yarn joining can be performed while the spun yarn stored in the yarn storage unit is wound up by the yarn winding unit.
- the yarn winding operation can be performed continuously without interruption.
- a yarn winding device is the yarn winding device according to the thirteenth aspect of the present invention, wherein the guide member drive motor is capable of rotating the guide member in both directions.
- the yarn pulling mechanism is further configured by a member and the guide member driving motor or the roller driving motor.
- the yarn drawing mechanism can be constituted by the guide member and the guide member driving motor or the roller driving motor constituting the yarn winding mechanism, there is no need to provide a yarn drawing mechanism separately from the yarn winding mechanism.
- the configuration of the apparatus can be simplified.
- a yarn winding device is the yarn winding device according to any one of the first to fourteenth aspects of the present invention, wherein the yarn supplying section is provided with a regulating member that covers the core tube of the yarn supplying bobbin.
- a yarn unwinding assisting device for assisting unwinding of the spun yarn from the yarn supplying bobbin is provided by being lowered in conjunction with unwinding of the spun yarn from the bobbin.
- the yarn storage part between the yarn feeding bobbin and the winding part to interrupt the transmission of the tension of the yarn
- the tension fluctuation due to the traverse fluctuation of the winding part at the unwinding tension part of the yarn feeding bobbin Can be prevented from being transmitted.
- the unwinding assist device to the yarn supplying bobbin, the yarn unwinding from the yarn supplying bobbin can be performed stably, so that yarn breakage is prevented and the unwinding speed from the yarn supplying bobbin is further increased. Can be fast. Therefore, the unwinding efficiency from the yarn feeding bobbin can be improved.
- the spun yarn wound around the plurality of rollers is conveyed by the rotation of the roller, the burden (frictional force) applied to the spun yarn is small, and the quality deterioration of the yarn is reduced. Further, since the spun yarn is wound around a plurality of rollers by a yarn winding mechanism and stored in an aligned manner, the yarn is not entangled in the yarn accumulating portion and winding of the yarn is not interrupted.
- FIG. 2 It is a schematic block diagram of the winding unit which concerns on embodiment of this invention. It is a schematic block diagram of the accumulator of FIG. It is a top view which shows arrangement
- FIG. 1 is a schematic configuration diagram of a winding unit constituting the automatic winder according to the present embodiment.
- the automatic winder includes a number of winding units 2 (yarn winding devices) shown in FIG.
- Each winding unit 2 includes a yarn supplying section 5, a winding section 6, a yarn defect detecting section 7, a yarn joining section 8, and a yarn storing section 9.
- the yarn supplying unit 5 includes a yarn supplying bobbin holding unit 60 for holding the yarn supplying bobbin 21, a yarn unwinding assisting device 12, and a first tensor 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 of the yarn Y (hereinafter simply referred to as “yarn Y”) is pulled out from the yarn supplying bobbin 21 set in the winding unit 10, the yarn supplying unit 5 is held in the yarn supplying bobbin holding unit 60. The bobbin is discharged, and the bobbin supply device sequentially supplies new yarn supplying bobbins 21 to the yarn supplying bobbin holding unit 60.
- 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. It is intended to assist you.
- 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 sensor (not shown) for detecting the chase portion of the yarn feeding bobbin 21 is provided in the vicinity of the lower portion of the restricting member 40. When the sensor detects the descent of the chase portion, the restricting member 40 is moved following the sensor, for example. It can be lowered by an air cylinder (not shown).
- a yarn feeler 37 capable of detecting the presence or absence of the yarn Y is provided.
- the yarn feeler 37 is configured to detect that the yarn Y pulled out from the yarn supplying bobbin 21 has run out and to transmit an empty bobbin signal to the control unit 109.
- the first tensor 41 gives a predetermined tension to the traveling yarn Y.
- this 1st tensor 41 the gate type thing which arrange
- the movable comb teeth can be rotated by a rotary solenoid (not shown) so that the comb teeth are engaged or opened.
- a constant tension can be applied to the yarn Y stored in the accumulator 61, which will be described later, and the yarn Y can be wound in an orderly manner in the accumulator 61 and stored.
- the winding unit 6 includes a cradle (not shown) configured to hold the winding bobbin 22, a winding drum 24 for traversing the yarn Y and rotating the winding bobbin 22, and a second tensor 42. .
- 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 take-up drum 24 drives the take-up bobbin 22 disposed to face the take-up drum 24 by being driven to rotate.
- the take-up drum 24 is connected to an output shaft of a take-up drum motor 116 (see FIG. 4).
- the take-up drum motor 116 is operated and stopped in response to an operation signal from the control unit 109. .
- the second tensor 42 controls the tension when the yarn Y unwound from an accumulator 61 (described later) of the yarn storage unit 9 is wound around the package 30. As a result, the yarn Y pulled out from the accumulator 61 is wound around the winding bobbin 22 in a state where an appropriate tension is applied.
- the second tensor 42 may be a gate type in which movable comb teeth are arranged with respect to fixed comb teeth.
- a waxing device 17 for waxing the running yarn Y is disposed on the downstream side of the second tensor 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 defect detection unit 7 includes a yarn clearer 15 for detecting a yarn defect.
- the yarn clearer 15 is configured to detect a defect by monitoring the thickness of the yarn Y with an appropriate sensor. By processing a signal from the sensor of the yarn clearer 15, a slab, a foreign object, etc. The yarn defect can be detected.
- 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 for cutting the yarn on the upstream side of the yarn defect when detecting the yarn defect.
- 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 joins the lower yarn on the yarn feeding bobbin 21 and the upper yarn on the package 30 side when the yarn breaks, when a yarn defect occurs, or when the bobbin is changed.
- 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 supported rotatably about a shaft 25a located below the splicer device 14, and can be rotated by a lower pipe motor 122 (see FIG. 4). Yes.
- 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 an upper pipe motor 121 (see FIG. 4). Yes.
- 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 before being wound around the package 30.
- FIG. 2 is a schematic configuration diagram of the accumulator 61.
- FIG. 3 is a plan view showing the arrangement of the rollers in FIG. 2, and FIGS. 3A to 3C show the arrangement at the upper end, the lower end, and the approximate center of the roller in FIG. 2, respectively.
- the position of the lower end portion of the roller 71 is indicated by a dotted line in order to make it easy to understand the inclination direction of the roller 71 described later.
- the accumulator 61 includes six rollers 71, a base 72, a rotating plate 73, three winding auxiliary members 74, a winding arm 75, a winding arm motor 76, and a speed reducer. 77, pulleys 78a to 78c, a shaft 79, and the like.
- the base material 72 is a substantially circular plate-like body, and is supported by a tip (upper end) of the output shaft 136 of the winding arm motor 76 via a bearing (not shown) and fixed to the lower surface of the base material 72.
- a base material 72 for the winding arm motor 76 by a magnetic coupling force between the magnet 138 attached to the magnet support 137 and the magnet 140 attached to the second magnet support 139 provided to the winding arm motor 76. The rotation of is now regulated.
- the six rollers 71 are arranged on the upper surface of the base material 72 along the circumference (aligned in a virtual circumferential direction described later), and the lower end portion (one end portion, the winding side end). Part) is pivotally supported on the upper surface of the base material 72, and its upper end (the other end, the unwinding side end) is supported by the rotating plate 73.
- the six rollers 71 are composed of five drive rollers 71a to 71e (majority rollers) and one adjustment roller 71f. As shown in FIG. The centers are all located on the virtual circumference A1 (first virtual circumference). Further, the driving rollers 71a to 71e have their upper end centers positioned on the virtual circumference A2 (second virtual circumference) inside the virtual circumference A1, and the adjustment roller 71f Is located on a virtual circumference A3 (third virtual circumference) outside the virtual circumference A1. Note that the centers of the virtual circumferences A1 to A3 coincide with each other. In the following description, the circumferential direction of the virtual circumferences A1 to A3 is defined as the virtual circumference direction.
- the driving rollers 71a to 71e have their upper end portions (unwinding side end portions) supported by the rotating plate 73 pivoted on the upper surface of the base material 72 (winding side end portions). It is inclined so as to come inside.
- the adjustment roller 71f is inclined so that its upper end (unwinding side end) is on the outer side of the lower end (winding side end).
- the rotating plate 73 (angle changing mechanism, winding interval adjusting mechanism) is rotatable about the rotation axis C of the winding arm motor 76.
- the rotating plate 73 is rotated.
- the upper ends of the rollers 71 supported by 73 move by a distance corresponding to the same central angle in the virtual circumferential direction.
- the roller 71 is inclined in the virtual circumferential direction as shown in FIGS. At this time, the rollers 71a to 71e are uniformly inclined at an equal angle.
- 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 conveyed toward the winding unit 6 through the gap. At this time, since the yarn Y is conveyed between the rotating plate 73 and the rubber ring 81 while being interposed between them, 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 drive rollers 71a to 71e, and the pulley 82 is connected to a speed reducer 77 and a speed reducer 77 that transmit the rotation of the winding arm motor 76 with a predetermined reduction ratio. Connected to the output shaft 136 of the winding arm motor 76 via the pulley 78a, the pulley 78b connected to the pulley 78a, the pulley 78c connected to the pulley 82, and the shaft 79 connecting the pulley 78b and the pulley 78c. Has been.
- a winding arm motor 76 (guide member drive motor) that rotates the winding arm 75 as described later also serves as a motor (roller drive motor) for rotating the drive rollers 71a to 71e.
- the transmission mechanism according to the present invention is a combination of the speed reducer 77, the pulleys 78a to 78c, the shaft 79, and the pulley 82 that connect the winding arm motor 76 and the drive rollers 71a to 71e. It corresponds to.
- pulleys 78b and 78c and a shaft 79 are not provided for the adjustment roller 71f, and the adjustment roller 71f is a driven roller that does not rotate by the rotation of the winding arm motor 76.
- the pulley 82 is also provided on the lower surface of the adjustment roller 71f because the adjustment roller 71f is configured using the same components as the drive rollers 71a to 71e.
- the three winding auxiliary 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 end portion of the roller 71.
- the winding auxiliary member 74 has a winding auxiliary surface 74 a for smoothly connecting the outer peripheral surfaces of the rollers 71 at a portion located between the adjacent rollers 71.
- the auxiliary surface 74a forms a surface extending substantially continuously along the virtual circumferential direction. Further, the winding auxiliary surface 74a is inclined so that the upper part is located on the inner side in the radial direction of the virtual circumferences A1 to A3.
- the winding arm 75 (guide member) is for guiding the yarn Y to the lower end portion of the roller 71, and has a yarn path 128 through which the yarn Y can travel. It is configured to be rotatable.
- the winding arm 75 is connected to the outer peripheral surface of the output shaft 136, and the linear portion 141 extending radially outward from the outer peripheral surface of the output shaft 136 and the lower end portion of the roller 71 bypassing the first magnet support 137. It is comprised from the curved part 142 which reaches to the vicinity.
- An opening 143 facing the lower end of the roller 71 is formed at the tip of the curved portion 142.
- the winding arm 75 can rotate around the axis C between the first magnet support 137 and the second magnet support 139 described above.
- the yarn Y on the yarn feeding section 5 side guided into the yarn path 128 of the winding arm 75 is rotated at the lower end of the six rollers 71 (winding as described later). It is designed to be wound around the side edge).
- yarn 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 (guide member driving motor) is a position-controllable motor such as a servo motor, a DC brushless motor, or a stepping motor, and is electrically connected to the control unit 109. Is capable of freely controlling the rotation speed of the winding arm 75, that is, the winding speed Vb as the yarn speed of the yarn Y wound around the roller 71. In the present embodiment, the combination of the winding arm 75 and the winding arm motor 76 serves as the yarn winding mechanism and the yarn drawing means according to the present invention.
- the rotation speeds of the drive rollers 71a to 71e also change.
- the rotational speeds of the drive rollers 71a to 71e are determined by the rotational speed of the winding arm motor 76, the reduction ratio of the speed reducer 77, and the ratio of the diameters of the pulleys 78a to 78c and 82.
- 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 is connected to the downflow passage 147 via a connection pipe 149 and a connection pipe 150, and an electromagnetic wave electrically connected to the control unit 109 is connected between the connection pipe 149 and the connection pipe 150.
- a valve 152 is provided.
- the winding arm motor 76 is provided with a rotary encoder 153 capable of detecting the rotation angle of the winding arm 75, and this rotary encoder 153 is electrically connected to the control unit 109.
- the rotary encoder 153 transmits an angle signal corresponding to the rotation angle of the winding arm 75 to the control unit 109.
- a pull-out sensor 154 capable of 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 is provided.
- the pull-out sensor 154 is electrically connected to the control unit 109 and transmits a pull-out detection signal to the control unit 109 when detecting that the yarn end of the yarn Y has been pulled out to the yarn joining unit 8 side. It has become.
- the accumulator 61 is provided with a storage upper limit sensor 155, a storage lower limit sensor 156, and a storage lower limit sensor 157 for detecting the storage amount of the yarn Y.
- the storage upper limit sensor 155, the storage lower limit sensor 156, and the storage lower limit sensor 157 are the yarn Y wound around the outer periphery of the roller 71 when the storage amount of the yarn Y in the accumulator 61 is 300 m, 200 m, and 40 m, respectively. It is positioned at a position facing the upper end of the bundle.
- 300 m is a length that is equal to or longer than the length of the yarn Y wound by the winding unit 6 while repeating the yarn joining described later, for example, three times (at least once). Even when the winding of the yarn Y in the winding unit 6 is continued during the yarn joining, the yarn deficiency of the yarn Y in the accumulator 7 is less likely to occur.
- the storage upper limit sensor 155, the storage lower limit sensor 156, and the storage lower limit sensor 157 detect the presence of the yarn Y at the opposing position, respectively, to the control unit 109, respectively, A storage amount lower limit signal and a storage amount lower limit signal are transmitted.
- the control unit 109 shown in FIG. 4 includes a CPU (Central Processing Unit) that is an arithmetic processing device, a ROM (Read Only Memory) in which a control program executed by the CPU and data used for the control program are stored.
- the RAM Random Access Memory
- the control program stored in the ROM is read by the CPU and executed on the CPU, whereby the control program executes hardware such as the CPU, the winding drum motor control unit 160, the winding arm motor control unit 161.
- the drawn yarn length calculation unit 163 and the upper pipe control unit 164 function.
- the winding drum motor control unit 160 controls the rotational speed of the winding drum motor 116.
- the winding unit 6 causes the yarn to rotate.
- the winding speed Va for winding Y is reduced.
- the winding drum motor control unit 160 stops receiving the storage amount lower limit signal from the storage lower limit sensor 156, the winding drum motor control unit 160 gently increases the winding speed Va so that the yarn layer of the package 30 is not disturbed. Decelerate. Further, when receiving the storage amount lower limit signal from the storage lower limit sensor 157 is interrupted, the winding drum motor control unit 160 quickly decelerates the winding speed Va and stops winding by the winding unit 6.
- the winding drum motor control unit 160 decelerates the winding speed Va when the amount of yarn Y stored in the accumulator 61 decreases, and further, when the amount of yarn Y stored in the accumulator 61 becomes extremely small, the winding unit 6 performs winding. Therefore, the yarn deficiency of the yarn Y in the accumulator 61 is prevented in advance.
- the winding arm motor control unit 161 controls the winding arm motor 76, and when winding the yarn Y around the roller 71, the winding arm motor 76 is controlled so that the winding arm 75 rotates in one direction.
- the winding arm motor 76 is controlled so that the winding arm 75 rotates in the direction opposite to that when winding the yarn. To do.
- the drawn yarn length calculation unit 163 is drawn from the accumulator 61 to the yarn joining unit 8 based on the rotation angle of the winding arm 75 detected by the rotary encoder 153 from the time when the drawing sensor 154 detects the yarn Y.
- the drawn yarn length as the yarn length of the warp yarn Y is calculated.
- the upper pipe control unit 164 compares the yarn defect length acquired from the yarn defect detection signal with the drawn yarn length calculated by the drawn yarn length calculation unit 163, and when the drawn yarn length reaches the yarn defect length, The upper thread guide pipe 26 is turned in a clamped state, and the thread Y on the winding unit 6 side is guided to the splicer device 14 and set.
- 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 tensor 41, a yarn clearer 15, and an accumulator. 61, the second tensor 42, and the waxing device 17 are 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 yarn passage 128 of the winding arm 174 in order.
- the operator pulls the yarn Y from the opening 143 side of the winding arm 75, winds it around the roller 71 and the winding auxiliary member 74, for example, about 5 to 20 times, and sets it on the second tensor 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 yarn Y wound around the roller 71 is unwound in order from the upper end side by the winding unit 6 and wound around the package 30 while being traversed by the winding drum 24.
- the yarn Y on the yarn supplying section 5 side is guided to the lower end portion of the roller 71 by the winding arm 75 as shown in FIG. By rotating clockwise, the roller 71 is wound around the lower end portion.
- the rollers 71 are spaced apart from each other.
- the winding auxiliary member 74 is disposed so as to surround the lower end portion of the roller 71, and the lower end portion of the roller 71 is wound around the lower end portion. Since the auxiliary surface 74a forms a surface extending substantially continuously along the virtual circumferential direction, the yarn Y is wound across the roller 71 and the winding auxiliary surface 74a. Therefore, the yarn Y can be smoothly wound around the roller 71.
- the driving rollers 71a to 71e are also rotated, and the yarn Y wound around the roller 71 by the winding arm 75 is conveyed by the driving rollers 71a to 71e.
- the driving rollers 71a to 71e are inclined in the virtual circumferential direction, as shown in FIG. 6, the yarn Y conveyed to the driving rollers 71a to 71e is unwound side end portions. Move upward (feed direction).
- the adjusting roller 71f which is a driven roller, rotates following the conveyance of the yarn Y by the rotation of the driving rollers 71a to 71e.
- the yarn Y wound around the lower end portion of the roller 71 and the winding auxiliary member 74 moves upward by the rotation of the drive rollers 71a to 71e, and the winding Y of the winding auxiliary member 74 is wound. It moves upward along the inclination of the auxiliary surface 74a.
- the friction force is generated by the yarn Y coming into contact with the winding auxiliary surface 74a as compared with the state where the yarn Y is wound only around the roller 71.
- the amount of yarn Y transported by the rotation of the drive rollers 71a to 71e is reduced by the amount of occurrence, but since the yarn Y is transported upward along the inclined winding auxiliary surface 74a, the moving speed of the yarn Y upwards Becomes uniform.
- the winding interval of the yarn Y wound around the roller 71 is changed by changing the inclination angle of the roller 71 in the virtual circumferential direction in accordance with the type of the yarn Y to be wound around the winding bobbin 22. can do.
- the roller 71 when the roller 71 is inclined in the virtual circumferential direction, the roller 71 is not inclined in the radial direction of the virtual circumferences A1 to A3, and the upper end portion and the lower end portion thereof are the virtual circumferences A1 to A3.
- the central portion of the roller 71 Assuming that the roller 71 is at the same position in the radial direction, the central portion of the roller 71 is located on the innermost side, and the portion closer to both ends is located on the outer side. Therefore, the winding circumference of the yarn Y wound around the central portion of the roller 71 is the shortest, and the winding circumference of the yarn Y wound around the portion close to both ends becomes longer. Note that the difference in the winding circumference of the yarn Y to be wound becomes more prominent as the inclination angle of the roller 71 in the virtual circumferential direction increases.
- the yarn Y wound around the roller 71 is conveyed by the driving rollers 71a to 71e, the yarn Y is conveyed from a portion of the roller 71 to a portion where the winding circumference of the yarn Y wound around that portion is longer. It is difficult to do.
- the range in which the yarn Y can be substantially wound and stored is the lower end of the roller 71 and the vicinity of the central portion where the winding circumference of the wound yarn Y is the shortest. Only between the parts. That is, the yarn Y can be wound only about half of the rollers 71.
- the innermost portion of the drive rollers 71a to 71e is from the central portion thereof. Will also go upwards. Thereby, the range which can wind substantially the thread
- the storage upper limit sensor 155 detects the presence of the uppermost yarn Y within a range in which the yarn can be wound.
- rollers 71a to 71e are inclined in the radial direction of the virtual circumferences A1 to A3 so that the upper end portion (unwinding side end portion) is located inside the lower end portion (winding side end portion).
- the winding circumference of the yarn Y wound around the roller 71 does not increase toward the unwinding direction in which the yarn Y is unwound by the winding unit 6. Therefore, the yarn Y does not stay in a part of the roller 71 and the storage is not delayed.
- the roller 71 has an upper end side within a range in which the yarn Y can be wound. Therefore, the yarn Y conveyed by the roller 71 is conveyed from the portion of the roller 71 where the winding circumference of the yarn Y to be wound becomes longer to the portion where the winding circumference becomes shorter. At this time, the yarn Y may be loosened.
- the adjustment roller 71f since the adjustment roller 71f that is inclined so that the upper end portion is located outside the lower end portion is disposed, the adjustment roller 71f indicated by a one-dot chain line in FIG. Compared with the case where the inclinations of the virtual circumferences A1 to A3 in the radial direction are the same as those of the other drive rollers 71a to 71e, as shown by the solid line in FIG.
- the winding circumference of the yarn Y to be wound becomes longer by the amount inclined to the angle, and the degree to which the winding circumference of the yarn Y to be wound becomes longer becomes greater toward the upper end portion side.
- the winding circumference of the yarn Y wound around each part of the roller 71 becomes uniform, and the yarn Y is not loosened as described above.
- the control unit 109 is as shown in FIG.
- the presence or absence of a yarn breakage signal is confirmed (S320)
- the presence or absence of a yarn defect detection signal is confirmed (S330)
- the presence or absence of an empty bobbin signal is confirmed (S340)
- the storage amount upper limit signal is received. Is confirmed (S350).
- FIG. 8 and 9 After executing the control flow shown in FIGS. 8 and 9 (S325, S335, S345), the control flow returns to the control flow of FIG.
- the storage upper limit sensor 155 transmits a storage amount upper limit signal to the control unit 109.
- the control unit 109 changes the winding speed Vb from, for example, 1500 m / min to 1200 m / min (S360).
- the winding speed Va and the winding speed Vb coincide with each other, and the storage amount of the accumulator 61 becomes constant.
- control unit 109 switches the electromagnetic valve 152 to the open state to form an air flow from the roller 71 side to the upper yarn guide pipe 26 side in the yarn path 128 of the winding arm 75 (S420). .
- control unit 109 switches the suction port 26b of the upper thread guide pipe 26 from the closed state to the open state, thereby moving the upper thread guide pipe 26 from the suction port 26b side to the negative pressure source 120 side.
- An air flow is formed (S420).
- the winding arm motor control unit 161 controls the winding arm motor 76 so that the winding arm 75 rotates at a low speed in a direction opposite to that when the winding arm 75 winds the yarn Y, that is, clockwise in a plan view.
- S430 a state of waiting for reception of a drawer detection signal from the drawer sensor 154 is entered (S440: NO).
- the yarn end of the yarn Y existing on the lower end portion of the roller 71 is sucked into the opening 143 of the winding arm 75 and the suction port of the upper yarn guide pipe 26 via the yarn path 28 of the winding arm 75 and the like. 26b.
- the winding arm motor 76 is a motor whose position can be controlled, the winding arm 75 can be accurately moved to a position facing the yarn end of the yarn Y located at the lower end of the roller 71. With this, the yarn Y can be reliably sucked from the opening 143.
- the pull-out sensor 154 transmits a pull-out detection signal to the control unit 109.
- the control unit 109 switches the suction port 26b from the open state to the closed state while continuing the low-speed rotation of the winding arm 75 and uses the clamp unit 26c.
- the yarn Y is clamped, and the upper yarn guide pipe 26 is turned from the top to the bottom around the shaft 26a, thereby guiding the yarn Y drawn from the accumulator 61 to the splicer device 14 of the yarn joining portion 8 (S450). ).
- the control unit 109 synchronizes the turning of the upper thread guide pipe 26 with the rotation of the winding arm 75.
- the control unit 109 stops the rotation of the winding arm 75 (S460).
- the lower thread guide pipe 25 sucks and captures the thread end of the thread Y existing around the yarn feeler 37, and guides the thread Y to the splicer device 14. Then, when the yarn Y on the accumulator 61 side and the yarn Y on the yarn feeding unit 5 side are set in the splicer device 14, the control unit 109 causes the splicer device 14 to execute a yarn splicing operation (S470).
- the control unit 109 starts counterclockwise rotation in a plan view of the winding arm 75 (S480), and returns to the normal winding state (S490).
- the rotational speed of the winding arm 75 at this time is set so that the winding speed Vb is 1500 m / min (S480).
- the control unit 109 When a yarn defect is detected and the control unit 109 receives a yarn defect detection signal and a yarn cutting signal from the yarn clearer 15, the control unit 109 operates in the order of S410 to S440 as in the case of the yarn breakage.
- a withdrawal detection signal is received from the withdrawal sensor 154 (S440: YES)
- the withdrawal yarn length calculation unit 163 detects the winding arm detected by the rotary encoder 153 from the time when the withdrawal sensor 154 detects the yarn Y.
- a rotation angle of 75 is acquired (S570), and the drawn yarn length is calculated based on the rotation angle (S580).
- the upper pipe control unit 64 compares the length of the yarn defect acquired from the yarn defect detection signal with the drawn yarn length calculated by the drawn yarn length calculating unit 63 (S590). Then, the upper pipe control unit 164 waits until the drawn yarn length reaches the yarn defect length (S590: NO), and when it reaches the yarn defect length (S590: YES), the above S450 ⁇ By performing the operation in the order of S480, the yarn splicing and returning to the normal winding state are performed.
- the control unit 109 receives an empty bobbin signal from the yarn feeler 37 (S340: YES)
- the current yarn supplying bobbin 21 is discharged and a new yarn supplying bobbin 21 is supplied.
- the yarn is loaded into the holding unit 60, the yarn Y of the yarn supplying bobbin 21 is guided, and the yarn can be caught and sucked into the lower yarn guide pipe 25 (S710).
- the yarn splicing and return to the normal winding state are performed by the operations of S410 to S440.
- the yarn joining portion 8 can perform yarn joining without interrupting the winding of the yarn Y onto the package 30 in the winding portion 6.
- the yarn storage unit 9 is disposed between the yarn feeding bobbin 21 and the winding unit 6 to interrupt the tension transmission of the yarn Y, thereby supplying the yarn. It is possible to prevent the tension variation due to the traverse variation of the winding unit 6 from being transmitted to the unwinding tension portion of the yarn bobbin 21. Furthermore, by attaching the unwinding assisting device 12 to the yarn feeding bobbin 21, the yarn unwinding from the yarn feeding bobbin 21 can be performed stably, so that the yarn breakage is prevented and the yarn feeding bobbin 21 The unwinding speed can be increased. Therefore, the unwinding efficiency from the yarn feeding bobbin 21 can be improved.
- the rotation plate 73 that can rotate about the axis C is rotated, and the upper end portion of the roller 71 is moved in the virtual circumferential direction, whereby the roller 71 moves in the virtual circumferential direction.
- the present invention is not limited to this.
- both the upper end portion and the lower end portion of the roller 71 are fixed to a rotation plate that can rotate about the axis C, and the two rotation plates are rotated in opposite directions to each other.
- the inclination angle of the roller 71 in the virtual circumferential direction may be changed by moving the upper end portion and the lower end portion of 71 to opposite sides of the virtual circumferential direction.
- the angle changing mechanism for changing the inclination angle of the roller 71 in the virtual circumferential direction may be realized by a configuration other than the rotating plate.
- the winding interval of the yarn Y may be changed by a mechanism different from the tilt angle changing mechanism.
- the speed reducer 77 is a variable speed reducer (variable speed change mechanism) configured so that the speed reduction ratio can be changed.
- the speed reduction ratio By changing the speed reduction ratio with the variable speed reducer, the winding speed of the yarn Y by the winding arm 75 can be increased.
- the ratio with the rotational speed of the drive rollers 71a to 71e moving speed of the yarn Y upward
- the winding interval of the yarn Y wound around the drive rollers 71a to 71e can be changed. It may be.
- the speed reducer 77, the pulleys 78a to 78c, and the shaft 79 are not provided, and instead of the winding arm motor 76, a motor (roller drive motor) for rotating the drive rollers 71a to 71e is provided. And a speed control mechanism for individually controlling the rotation speed of the winding arm motor 76 and the rotation speed of the roller drive motor, and the ratio of these rotation speeds is changed by the speed control mechanism.
- the ratio between the winding speed of the yarn Y by the winding arm 75 and the rotational speed of the drive rollers 71a to 71e (moving speed of the yarn Y upward) is changed, and the yarn is wound around the drive rollers 71a to 71e.
- the winding interval of the yarn Y may be changed.
- a winding interval changing mechanism for changing the winding interval of the yarn Y wound around the roller 71 as described above is provided. It does not have to be.
- the adjustment roller 71f is a driven roller that is not rotated by the rotation of the winding arm motor 76.
- the adjustment roller 71f is also a winding arm motor similar to the drive rollers 71a to 71e. The roller rotated by the rotation of 76 may be used.
- all of the five rollers 71a to 71e except for the adjustment roller 71f are drive rollers, but only some of them are drive rollers, and the other rollers are driven. It may be a roller.
- the upper end portions of the drive rollers 71a to 71e are located inside the lower end portion.
- the upper end portions and the lower end portions of the drive rollers 71a to 71e have the same virtual circumference ( For example, it is located on any one of the virtual circumferences A1 to A3) and does not have to be inclined in the radial direction of the virtual circumferences A1 to A3.
- one of the six rollers 71 adjusts the winding peripheral length of the wound yarn Y that is inclined so that the upper end portion is positioned outside the lower end portion.
- the number of adjusting rollers may be two or more. Alternatively, the adjustment roller may not be provided.
- the adjustment roller 71f when the rotation plate 73 is rotated, the adjustment roller 71f is configured to move along the virtual circumferential direction together with the drive rollers 71a to 71e.
- the present invention is not limited to this, and the inclination angle of the adjustment roller 71f may be changed independently.
- the number of rollers 71 is not limited to six in the above-described embodiment, and may be two to five or seven or more. As the number of rollers 71 increases, the number of parts increases, but the winding circumference of the yarn Y that can be wound around the rollers 71 becomes longer.
- the winding arm 75 and the winding arm motor 76 constitute both the yarn winding mechanism and the yarn drawing mechanism according to the present invention.
- the yarn winding mechanism and the yarn drawing mechanism may be provided separately as long as the yarn Y can be wound around the roller 71 and the yarn Y can be pulled out from the roller 71. Another configuration may be used.
- the yarn Y on the downstream side is all wound around the roller 71 when the yarn breaks, when the yarn defect is detected, or when the bobbin is changed.
- the occurrence is detected in advance, and the driving of the winding arm 75 is stopped before the downstream yarn Y is completely wound around the roller 71.
- the cutter provided in the yarn clearer 15 cuts the yarn Y and simultaneously stops the driving of the winding arm 75.
- a sensor for detecting the remaining yarn amount of the yarn feeding bobbin 21 is attached to the yarn unwinding assisting device 12 to monitor the remaining yarn amount of the yarn feeding bobbin 21.
- the upper yarn guide pipe 26 can catch the yarn end hanging down below the accumulator 61. Therefore, it is possible to reduce the yarn Y drawing process by the yarn end drawing mechanism, and the splicing operation can be performed. Increases efficiency.
- the withdrawal sensor 154 is provided at the lower end of the blow-down nozzle 148, the yarn end of the yarn Y stored in the accumulator 61 is stopped at a position where it can be received by the upper yarn guide pipe 26. That is, it is possible to detect a state in which the yarn end is reliably stopped in a state where the yarn end hangs down below the accumulator 61. Accordingly, it is possible to reduce the time required to draw the yarn end of the yarn Y from the yarn accumulating portion to the yarn joining portion side.
- the drawing mechanism of the present invention can draw not only the yarn Y completely wound up in the accumulator 61 but also the yarn Y in a state stopped below the accumulator 61 to the yarn joining portion 8 side. .
- the roller 71 is inclined in the virtual circumferential direction, but the roller 71 may not be inclined in the virtual circumferential direction.
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Winding Filamentary Materials (AREA)
- Forwarding And Storing Of Filamentary Material (AREA)
- Replacing, Conveying, And Pick-Finding For Filamentary Materials (AREA)
- Guides For Winding Or Rewinding, Or Guides For Filamentary Materials (AREA)
Abstract
Description
この状態で、図5に示すように、巻取ユニット2の電源を投入すると(S300)、制御部109は、巻取部6による糸Yの巻取速度Vaが、例えば1200m/minとなるように巻取ドラム24の回転を開始させるとともに、アキュムレータ61における糸Yの巻付速度Vbが、例えば、1500m/minとなるように巻付アームモータ76の回転を開始させる(S310)。
次に糸切れが発生した場合の図7の制御フローに示す動作について説明する。糸切れが発生して、制御部109が、ヤーンクリアラ15から糸切れ信号を受信すると(S320:YES)、制御部109は、まず、巻付アーム75の回転を停止させる(S410)。
次に、糸欠点が検出された場合の、図8の制御フローに示す動作について説明する。ただし、このときの動作の一部は糸切れ時と同様であるので、以下では、糸切れ時と同様の動作についてはその詳細な説明を省略する。
次に、給糸ボビン21が空になった場合の動作について説明する。ただし、この場合の動作の一部は糸切れ時と同様であるので、以下では、糸切れ時と同様の動作についてはその詳細な説明を省略する。
5 糸巻取部
6 糸貯留部
9 給糸部
21 給糸ボビン
30 パッケージ
71a~71f ローラ
73 回動板
74 巻付アーム
76 巻付アームモータ
77 減速機
Claims (15)
- 給糸ボビンから紡績糸を解舒する給糸部と、
この紡績糸をパッケージとして巻き取る糸巻取部と、
前記給糸部と前記糸巻取部との間に設けられており、紡績糸を貯留する糸貯留部とを備えており、
前記糸貯留部が、
前記紡績糸を巻き付けて貯留する糸貯留体と、
前記糸貯留体に紡績糸を巻き付ける糸巻付機構と、
を有し、
前記貯留体は、第一仮想円周上にその軸が位置するように並べて、かつ回転可能に設けられた複数のローラで構成されていることを特徴とする糸巻取り装置。 - 前記糸貯留部が、
前記複数のローラのうちの少なくとも1つを駆動ローラとして回転させるローラ駆動モータを、さらに備えており、
前記複数のローラの各々の回転軸を前記第一仮想円周の周方向に傾斜させて配置することにより、前記複数のローラに巻き付けられた紡績糸を、前記糸巻取部により紡績糸が巻き出される解舒方向に向けて搬送することを特徴とする請求項1に記載の糸巻取装置。 - 前記糸貯留部が、前記複数のローラに巻き付けられた紡績糸の巻付間隔を変更する巻付間隔変更手段をさらに備えていることを特徴とする請求項2に記載の糸巻取装置。
- 前記巻付間隔変更手段が、前記複数のローラの各々の、前記第一仮想円周の周方向への傾斜角度を変更させる角度変更機構を有していることを特徴とする請求項3に記載の糸巻取装置。
- 前記角度変更機構は、
前記複数のローラの少なくとも片方の端部を、前記第一仮想円周の周方向に移動させる機構であることを特徴とする請求項4に記載の糸巻取装置。 - 前記糸巻付機構は、前記複数のローラの一端部である巻付側端部に紡績糸を巻き付けるように構成されており、
前記複数のローラの前記巻付側端部が前記第一仮想円周上に位置する様に取り付けられ、
前記複数のローラのうち過半数のローラの他端部である解舒側端部が、前記第一仮想円周よりも直径の小さい第二仮想円周を基準に配置されることにより、前記過半数のローラが、前記第一仮想円周の径方向に傾斜配置されていることを特徴とする請求項4又は5に記載の糸巻取装置。 - 前記過半数のローラに含まれないローラのうち少なくとも1本のローラの解舒端部は、前記第一仮想円周よりも直径の大きい第三仮想円周を基準に配置された、巻き付けられる紡績糸の巻付周長を調整するための調整用ローラであることを特徴とする請求項6に記載の糸巻取装置。
- 前記調整用ローラが、従動ローラであることを特徴とする請求項7に記載の糸巻取装置。
- 前記複数のローラの周りを回転可能に構成されており、前記複数のローラに対する紡績糸の案内を行う案内部材と、
前記案内部材を回転させる案内部材駆動モータと、
をさらに備えており、
前記案内部材と前記案内部材駆動モータとにより、前記糸巻付機構が構成されていることを特徴とする請求項1~8のいずれかに記載の糸巻取装置。 - 前記複数のローラの周りを回転可能に構成されており、前記複数のローラに対する紡績糸の案内を行う案内部材をさらに備え、
前記案内部材は、伝達機構を介して前記ローラ駆動モータに接続されていることによって、前記ローラ駆動モータにより駆動され、
前記案内部材と前記ローラ駆動モータとにより、前記糸巻付機構が構成されていることを特徴とする請求項3~8のいずれかに記載の糸巻取装置。 - 前記巻付間隔変更手段が、前記伝達機構に設けられており、前記ローラ駆動モータと前記駆動ローラとの回転速度の比を変更可能な可変変速機構を構成していることを特徴とする請求項10に記載の糸巻取装置。
- 前記複数のローラの周りを回転可能に構成されており、前記複数のローラに対する紡績糸の案内を行う案内部材と、
前記案内部材を回転させる案内部材駆動モータとをさらに備え、
前記案内部材と前記案内部材駆動モータとにより、前記糸巻付機構が構成されており、
前記巻付間隔変更手段が、前記ローラ駆動モータの回転速度と、前記案内部材駆動モータの回転速度とを個別に制御する速度制御機構を有していることを特徴とする請求項3~8のいずれかに記載の糸巻取装置。 - 前記糸貯留部が、
前記複数のローラに巻き付けられた紡績糸を前記給糸部側に引き出す糸引出機構をさらに備えていることを特徴とする請求項9~12のいずれかに記載の糸巻取装置。 - 前記案内部材駆動モータが、前記案内部材を両方向に回転させることが可能なものであって、
前記案内部材と、前記案内部材駆動モータもしくは前記ローラ駆動モータと、によって、前記糸引出機構がさらに構成されていることを特徴とする請求項13に記載の糸巻取装置。 - 前記給糸部には、給糸ボビンの芯管に被さる規制部材を給糸ボビンからの紡績糸の解舒と連動して下降させることにより、給糸ボビンから紡績糸の解舒を補助する糸解舒補助装置が設けられていることを特徴とする請求項1~14に記載の糸巻取装置。
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JP2011534317A JP5365697B2 (ja) | 2009-09-30 | 2010-09-30 | 糸巻取装置 |
EP10820657.4A EP2484618B1 (en) | 2009-09-30 | 2010-09-30 | Yarn winder |
CN201080043851.4A CN102574655B (zh) | 2009-09-30 | 2010-09-30 | 纱线卷绕装置 |
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JP2009228787 | 2009-09-30 |
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PCT/JP2010/067113 WO2011040542A1 (ja) | 2009-09-30 | 2010-09-30 | 糸巻取装置 |
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Cited By (1)
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CN103420226A (zh) * | 2012-05-18 | 2013-12-04 | 村田机械株式会社 | 纱线卷绕装置及纱线卷绕方法 |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2012188255A (ja) * | 2011-03-11 | 2012-10-04 | Murata Machinery Ltd | 糸巻き取り装置 |
JP2016016969A (ja) * | 2014-07-10 | 2016-02-01 | 村田機械株式会社 | 糸貯留装置、糸巻取ユニット及び糸巻取機 |
JP2016050053A (ja) * | 2014-08-28 | 2016-04-11 | 村田機械株式会社 | 糸巻取装置 |
DE102018115597A1 (de) * | 2018-06-28 | 2020-01-02 | Memminger-IRO Gesellschaft mit beschränkter Haftung | Fadenliefergerät und Verfahren zum Betreiben eines Fadenliefergerätes |
CN109292523B (zh) * | 2018-10-10 | 2020-08-25 | 长飞光纤光缆股份有限公司 | 大容量线缆智能储线装置及其使用方法 |
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CN102574655A (zh) | 2012-07-11 |
JP5365697B2 (ja) | 2013-12-11 |
EP2484618A1 (en) | 2012-08-08 |
CN102574655B (zh) | 2014-06-11 |
JPWO2011040542A1 (ja) | 2013-02-28 |
EP2484618A4 (en) | 2013-06-26 |
EP2484618B1 (en) | 2014-11-19 |
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