EP2594516B1 - Spulenwickelvorrichtung - Google Patents

Spulenwickelvorrichtung Download PDF

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Publication number
EP2594516B1
EP2594516B1 EP11806438.5A EP11806438A EP2594516B1 EP 2594516 B1 EP2594516 B1 EP 2594516B1 EP 11806438 A EP11806438 A EP 11806438A EP 2594516 B1 EP2594516 B1 EP 2594516B1
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EP
European Patent Office
Prior art keywords
yarn
catch
bobbin
accumulation
joining
Prior art date
Legal status (The legal status 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 status listed.)
Active
Application number
EP11806438.5A
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English (en)
French (fr)
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EP2594516A1 (de
EP2594516A4 (de
Inventor
Yuji Imamura
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Murata Machinery Ltd
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Murata Machinery Ltd
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Publication date
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Publication of EP2594516A1 publication Critical patent/EP2594516A1/de
Publication of EP2594516A4 publication Critical patent/EP2594516A4/de
Application granted granted Critical
Publication of EP2594516B1 publication Critical patent/EP2594516B1/de
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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
    • 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
    • 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
    • B65H69/00—Methods of, or devices for, interconnecting successive lengths of material; Knot-tying devices ;Control of the correct working of the interconnecting device
    • 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 machine.
  • the present invention relates to a configuration for guiding a yarn to a yarn joining device at a time of yarn joining.
  • a yarn winding machine such as an automatic winder is known in which a spun yarn wound on a yarn supply bobbin is rewound on a winding package with removal of defects of the spun yarn.
  • the yarn joining device performs the yarn joining, it is necessary that a yarn of the package side and a yarn of the yarn supply bobbin side are guided to the yarn joining device.
  • a suction stream is generated at a distal end of a pipe-shaped yarn guide member to thereby suck and catch a yarn, and then the yarn guide member is swung so that the yarn is guided to the yarn joining device.
  • FIG. 19 is a side view showing an outline of a winder unit 90 included in a conventional automatic winder.
  • the winder unit 90 is configured to rewind a spun yarn 20 of a yarn supply bobbin 21 into a package 30.
  • the winder unit 90 includes a yarn joining device 14 that performs the yarn joining, and yarn guide pipes (an upper yarn guide pipe 91, a lower yarn guide pipe 92).
  • the yarn guide pipes 91 and 92 are connected to a negative pressure source (not shown), and configured such that a suction stream is generated at each of a suction port 91a of the upper yarn guide pipe 91 and a suction port 92a of the lower yarn guide pipe 92.
  • the upper yarn guide pipe 91 is configured to swing up and down about a pivot point 91b.
  • the lower yarn guide pipe 92 is configured to swing up and down about a pivot point 92b.
  • the upper yarn guide pipe 91 which is sucking and holding the yarn (upper yarn) of the package 30 side, is swung down. Thereby, the upper yarn of the package 30 side is introduced to the yarn joining device 14.
  • the lower yarn guide pipe 92 which is sucking and holding the yarn (lower yarn) of the yarn supply bobbin 21 side, is swung up. Thereby, the lower yarn of the yarn supply bobbin 21 side is introduced to the yarn joining device 14.
  • the yarn joining device 14 is actuated so that the yarn joining is performed between the upper yarn and the lower yarn, to thereby achieve a continuous state of the yarn between the package 30 and the yarn supply bobbin 21. Performing the yarn joining in the above-described manner enables the winding of the yarn into the package 30 to be continued.
  • Such a conventional configuration in which the yarn end is guided by swinging the yarn guide member (yarn guide pipes 91 and 92), involves a problem of a complicated mechanism because a mechanism for driving and swinging the yarn guide member is required. Additionally, the complicated mechanism results in less freedom in layout design. Moreover, other configuration parts have to be arranged such that they do not interfere with the yarn guide member that is swinging. In this respect as well, the layout is limited. Furthermore, it takes some time for driving and swinging the yarn guide member and guiding the yarn end. Therefore, a long time is required for the yarn joining.
  • Patent Document 1 discloses a traversing bobbin winding machine including a suction nozzle that sucks in a yarn of the package side by means of negative pressure.
  • This suction nozzle has a longitudinal slit.
  • the yarn sucked into the suction nozzle is drawn out through the longitudinal slit, and guided to a yarn breakage remover (yarn joining device) by a yarn grip member. Since the yarn is drawn out from the suction nozzle through the longitudinal slit, the yarn sucked into the suction nozzle can be guided to the yarn joining device without swinging the suction nozzle itself.
  • Patent Document 2 discloses a yarn supply processing device configured such that air is ejected from a blowing nozzle to thereby generate a suction air stream in the vicinity of an inlet port of a weft-yarn measuring and accumulating device so that a yarn end is introduced into a yarn winding tube.
  • This configuration which generates a suction air stream by ejected air, enables the yarn end to be sucked by the suction air stream, and also enables the yarn end to be guided together with the ejected air to a desired position. Accordingly, it is not necessary to drive any member for guiding the yarn end.
  • a yarn guide member for example, the yarn guide pipes 91 and 92 shown in FIG. 19
  • EP 2 107 025 A2 discloses a yarn winding machine according to the preamble of claim 1.
  • the configuration disclosed in Patent Document 2 includes a feather belt that unsticks the yarn end away from a weft-yarn cheese and guides the yarn end to the inlet port.
  • This configuration merely requires the yarn end transported by the feather belt to be sucked by the inlet port of the weft-yarn measuring and accumulating device. Therefore, it is not necessary to enlarge the width of the inlet port up to the cheese width. Accordingly, the inlet port can be formed with a small opening area. This could maintain the intensity of the suction stream generated in the inlet port, and thus improve the reliability in sucking and catching the yarn.
  • the feather belt has a complicated structure, because the feather belt has to be driven in a direction toward and away from the weft-yarn bobbin. Additionally, the feather belt applies scraping to a cheese surface, which may adversely affect the cheese shape. Therefore, it is not preferable to adopt the feather belt in an automatic winder, or the like, that aims to manufacture the cheese (package) itself. Furthermore, the configuration disclosed in
  • Patent Document 2 does not include a yarn joining device, and thus it is impossible to apply Patent Document 2 directly to a yarn winding machine including a yarn joining device.
  • the present invention has been made in view of the circumstances described above, and a primary object of the present invention is to provide a yarn winding machine that is able to improve the degree of freedom in a layout and also able to guide a yarn to a yarn joining device in a short time.
  • a yarn winding machine having the following configuration.
  • the yarn winding machine includes a bobbin support part, a yarn accumulation device, a winding part, a yarn joining device, and a yarn guide part.
  • the bobbin support part supports a yarn supply bobbin.
  • the yarn accumulation device accumulates a yarn unwound from the yarn supply bobbin.
  • the winding part winds a yarn accumulated on the yarn accumulation device, to form a package.
  • the yarn joining device performs yarn joining between a yarn of the yarn supply bobbin side and a yarn of the yarn accumulation device side, in a case where a yarn is disconnected between the bobbin support part and the yarn accumulation device.
  • the yarn guide part pulls out a yarn from the yarn accumulation device, and guides the yarn to the yarn joining device.
  • the yarn guide part includes a yarn pull-out ejection part, an air ejection part, a yarn catch part, and a yarn catch air-stream generation part.
  • the yarn pull-out ejection part pulls out a yarn accumulated on the yarn accumulation device and blows off the yarn toward the bobbin support part side.
  • the air ejection part generates an air stream in the yarn pull-out ejection part, the air stream being for pulling out and blowing off a yarn.
  • the yarn catch part is arranged between the yarn joining device and the bobbin support part, and configured to catch a yarn blown off by the yarn pull-out ejection part.
  • the yarn catch air-stream generation part generates an air stream in the yarn catch part, the air stream being for catching a yarn and introducing the yarn to the yarn joining device.
  • the above-described yarn winding machine is configured as follows.
  • the yarn pull-out ejection part is a guide tube that guides a yarn of the yarn supply bobbin side to the yarn accumulation device at a time of yarn winding.
  • the air ejection part is an air ejection nozzle that blasts compressed air to the inside of the guide tube.
  • the yarn is accumulated on the yarn accumulation device through the guide tube. Therefore, when, reversely, the yarn is pulled out from the yarn accumulation device, the pulling out of the yarn from the yarn accumulation device can be reliably and smoothly performed by pulling out the yarn through the guide tube. Accordingly, the above-described configuration in which the guide tube also serves as the yarn pull-out ejection part enables the yarn wound on the yarn accumulation device to be reliably and smoothly blown off.
  • the above-described yarn winding machine includes a deflection guide member that guides a yarn blown off by the yarn pull-out ejection part to the yarn catch part.
  • the yarn pull-out ejection part and the yarn catch part can be freely arranged. This improves the degree of freedom in a layout.
  • the deflection guide member is a tube-like member, in which a slit is formed along a longitudinal direction of a tube.
  • the deflection guide member having such a tube-like shape allows the yarn to pass through the inside of the tube and thereby reliably guides the yarn to the yarn catch part. Since the slit is formed in the deflection guide member having a tube-like shape, the yarn having been guided to the yarn catch part can be drawn out through the slit. As a result, at a time of normal winding, the yarn is able to travel outside the deflection guide member. This can prevent deterioration in the quality of the yarn, which may otherwise be caused by contact with the deflection guide member.
  • the deflection guide member is provided at a position deviated from a travel path through which a yarn travels at a time of yarn winding.
  • the above-described yarn winding machine is configured as follows.
  • the yarn winding machine includes a second yarn guide part that guides a yarn of the yarn supply bobbin to the yarn joining device.
  • the second yarn guide part includes a lower yarn blow-up part, a second yarn catch part, and a second yarn catch air-stream generation part.
  • the lower yarn blow-up part is arranged between the bobbin support part and the yarn joining device, and configured to blow off a yarn of the yarn supply bobbin to a position near the yarn joining device.
  • the second yarn catch part is arranged between the yarn joining device and the yarn accumulation device, and configured to catch a yarn blown off by the lower yarn blow-up part.
  • the second yarn catch air-stream generation part generates an air stream in the second yarn catch part, the air stream being for catching a yarn.
  • the yarn of the yarn supply bobbin side can be blown off and guided to the yarn joining device. This can further improve the degree of freedom in a layout of configuration parts of the yarn winding machine, and further shorten a time required for the yarn joining.
  • the above-described yarn winding machine includes a driving part configured to drive the second yarn catch part in a direction toward and away from a yarn travel path.
  • the above-described yarn winding machine is configured as follows.
  • the yarn winding machine includes a control part that controls actuation of the driving part.
  • the control part brings the second yarn catch part close to the yarn travel path, and at a time of yarn joining, the control part drives the second yarn catch part in a direction away from the yarn travel path under a state where a yarn is caught by the second yarn catch part, to thereby introduce the caught yarn to the yarn joining device.
  • the second yarn catch part is located close to the yarn travel path, to make it possible to suck and remove cotton fly, or the like, adhering to the yarn.
  • the second yarn catch part catches the yarn, the second yarn catch part is driven in the direction away from the yarn travel path, and thereby the yarn can be introduced to the yarn joining device.
  • the above-described yarn winding machine is configured as follows.
  • the yarn winding machine includes a control part that controls the yarn joining device, the yarn pull-out ejection part, and the lower yarn blow-up part.
  • the control part causes the lower yarn blow-up part to blow off a yarn of the new yarn supply bobbin, causes the second yarn catch part to catch the yarn thus blown off, and drives the second yarn catch part in the direction away from the yarn travel path.
  • the control part causes the yarn pull-out ejection part to pull out a yarn accumulated on the yarn accumulation device and blow off the yarn, and causes the yarn catch part to catch the yarn thus blown off.
  • the control part actuates the yarn joining device, to perform yarn joining.
  • the yarn of the yarn supply bobbin side and the yarn of the yarn accumulation device side are guided to the yarn joining device, and thus the yarn joining can be performed.
  • the above-described yarn winding machine is configured as follows.
  • the yarn winding machine includes a yarn defect detection device and a cutter.
  • the cutter is configured to, at a position at a downstream side of the second yarn catch part, cut a yarn between the yarn supply bobbin and the yarn accumulation device.
  • the control part actuates the cutter to cut the yarn, causes the second yarn catch part to catch a yarn of the yarn supply bobbin side, and drives the second yarn catch part in the direction away from the yarn travel path.
  • the control part causes the yarn pull-out ejection part to pull out a yarn accumulated on the yarn accumulation device and blow off the yarn, and causes the yarn catch part to catch the yarn thus blown off.
  • the control part actuates the yarn joining device, to perform yarn joining.
  • the yarn of the yarn supply bobbin side and the yarn of the yarn accumulation device side are guided to the yarn joining device, and thus the yarn joining can be performed.
  • FIG. 1 is a side view showing an outline of a winder unit 2 included in an automatic winder (yarn winding machine) according to a first embodiment of the present invention.
  • the automatic winder of this embodiment is configured with a number of winder units 2 arranged side by side.
  • This automatic winder includes a machine management device (not shown) and a blower box (not shown).
  • the machine management device collectively manages the winder units 2.
  • the blower box includes a compressed air source and a negative pressure source.
  • the winder unit 2 mainly includes a bobbin support part 7 and a winding part 8.
  • the winder unit 2 is configured to unwind a yarn (spun yarn) 20 from a yarn supply bobbin 21 that is supported on the bobbin support part 7 and rewind the yarn into a package 30.
  • FIG. 1 shows a state of the winder unit 2 at a time of normal winding.
  • the "time of normal winding" indicates a state where the yarn is continuous between the yarn supply bobbin 21 and the package 30 and additionally the yarn is being unwound from the yarn supply bobbin 21 and wound into the package 30.
  • the bobbin support part 7 is configured to hold the yarn supply bobbin 21 in a substantially upright state.
  • the bobbin support part 7 is also configured to discharge the yarn supply bobbin 21 that is empty.
  • the winding part 8 includes a cradle 23 and a traverse drum 24.
  • the cradle 23 is configured such that a wound bobbin 22 is mounted thereon.
  • the traverse drum 24 is configured to traverse the yarn 20 and drive the wound bobbin 22.
  • the traverse drum 24 is arranged opposed to the wound bobbin 22.
  • the traverse drum 24 is driven in rotation, and thereby the wound bobbin 22 is accordingly rotated.
  • This enables the yarn 20 accumulated on a yarn accumulation device 18, which will be described later, to be wound on the wound bobbin 22.
  • a traverse groove (not shown) is formed in an outer circumferential surface of the traverse drum 24.
  • the traverse groove allows the yarn 20 to be traversed (cross-wound) with a predetermined width.
  • the yarn 20 is wound on the wound bobbin 22 while being traversed, to form the package 30 having a predetermined length and a predetermined shape.
  • the terms "upstream side” and “downstream side” mean the upstream side and the downstream side with respect to a direction of traveling of the yarn.
  • Each of the winder units 2 includes a control part 25.
  • the control part 25 is composed of hardware such as a CPU, a ROM, and a RAM (not shown), and software such as a control program accumulated in the RAM.
  • the hardware and the software cooperate with each other, to thereby control each configuration part of the winder unit 2.
  • the control part 25 included in each winder unit 2 is configured to communicate with the machine management device. Accordingly, the machine management device can collectively manage operations of the plurality of winder units 2 included in the automatic winder.
  • the winder unit 2 also includes various devices provided in a yarn travel path between the bobbin support part 7 and the winding part 8. More specifically, in the yarn travel path, an unwinding assist device 10, a lower yarn blow-up part (yarn sucking and ejecting part) 11, a tension applying device 12, an upper yarn catch part (yarn catch part) 13, a yarn joining device 14, a yarn trap (second yarn catch part) 15, a cutter 16, a clearer (yarn defect detection device) 17, an upper yarn pull-out part 48, and a yarn accumulation device 18, are arranged in this order from the bobbin support part 7 side toward the winding part 8 side.
  • an unwinding assist device 10 a lower yarn blow-up part (yarn sucking and ejecting part) 11, a tension applying device 12, an upper yarn catch part (yarn catch part) 13, a yarn joining device 14, a yarn trap (second yarn catch part) 15, a cutter 16, a clearer (yarn defect detection device) 17, an upper yarn pull-out part 48, and
  • the unwinding assist device 10 assists the unwinding of the yarn 20 by bringing a movable member 40 into contact with a balloon, which is generated above the yarn supply bobbin 21 as a result of the yarn 20 being unwound from the yarn supply bobbin 21 and thrown around, and thereby appropriately controlling the size of the balloon.
  • the lower yarn blow-up part 11 is an air sucker device arranged between the bobbin support part 7 and the yarn joining device 14 (to be exact, at the immediately downstream side of the unwinding assist device 10).
  • the lower yarn blow-up part 11 is configured to blow up a lower yarn of the yarn supply bobbin 21 side toward the yarn joining device 14 side at a time of yarn joining (details will be given later).
  • the tension applying device 12 applies a predetermined tension to the yarn 20 that is traveling.
  • the tension applying device 12 is configured as a gate type in which a movable comb is arranged relative to a fixed comb.
  • the movable comb is configured to be swung by a rotary type solenoid such that the combs are brought into engagement or disengagement.
  • a configuration of the tension applying device 12 is not limited to this.
  • a disk type tension applying device is also adoptable.
  • the upper yarn catch part 13 is arranged between the yarn joining device 14 and the bobbin support part 7 (to be exact, at the immediately upstream side of the yarn joining device 14).
  • the upper yarn catch part 13 is connected to a negative pressure source (yarn catch air-stream generation part) (not shown), and configured to generate a suction air stream to suck and catch an upper yarn of the yarn accumulation device 18 side at a time of yarn joining (details will be given later).
  • the yarn trap 15 is arranged between the yarn joining device 14 and the yarn accumulation device 18 (to be exact, at the upstream side of the cutter 16 and at the immediately downstream side of the yarn joining device 14).
  • a distal end of the yarn trap 15 is formed as a tube-like member, which is provided close to the travel path of the yarn 20 and connected to a negative pressure source (second yarn catch air-stream generation part) (not shown).
  • a negative pressure source second yarn catch air-stream generation part
  • the clearer 17 is configured to detect a yarn defect (yarn fault) such as a slub by, for example, monitoring a yarn thickness of the yarn 20.
  • a yarn defect such as a slub
  • the clearer 17 transmits a disconnection signal to, for example, the control part 25.
  • the disconnection signal instructs to cut and remove the yarn defect.
  • the cutter 16 is arranged near the clearer 17, for immediately cutting the yarn 20 in response to the disconnection signal.
  • the yarn joining device 14 performs yarn joining between the lower yarn of the yarn supply bobbin 21 side and the upper yarn of the yarn accumulation device 18 side when the yarn is disconnected between the yarn supply bobbin 21 and the package 30, which occurs, for example, at a time of yarn cutting in which the clearer 17 detects a yarn defect so that the cutter 16 cuts the yarn, at a time of yarn breakage in which the yarn being unwound from the yarn supply bobbin 21 is broken, or at a time of replacing the yarn supply bobbin 21.
  • the yarn joining device 14 one using fluid such as compressed air, mechanical one, or the like, is adoptable.
  • the upper yarn pull-out part 48 is an air sucker device, and includes a guide tube 34 (yarn pull-out ejection part).
  • the guide tube 34 pulls out the upper yarn of the yarn accumulation device 18 side and blows the upper yarn toward the bobbin support part 7 side at a time of yarn joining (details will be given later).
  • the yarn accumulation device 18 is configured to temporarily accumulate the yarn 20 unwound from the yarn supply bobbin 21. In this manner, the yarn accumulation device 18 is interposed between the bobbin support part 7 and the winding part 8, and a certain amount of the yarn 20 is accumulated on the yarn accumulation device 18. Accordingly, even when the unwinding of the yarn from the yarn supply bobbin 21 is interrupted for some reason (for example, during the yarn joining operation), the winding part 8 is able to wind the yarn accumulated on the yarn accumulation device 18. Therefore, the winding of the yarn 20 into the package 30 can be continued. Thus, since a winding operation of the winding part 8 is not interrupted by the yarn joining operation or the like, the package 30 can be produced stably at a high speed.
  • sucking and catching of the yarn from the package 30 is not performed in every yarn joining operation. This can prevent occurrence of disorder in a surface of the package 30. Moreover, since occurrence of a yarn breakage in the winding part 8 is reduced, falling of the yarn onto an edge surface of the package 30 or occurrence of a failure in the winding shape is prevented.
  • a bobbin feeder 26 of magazine type is arranged at the front side of the winder unit 2.
  • the bobbin feeder 26 includes a rotary magazine can 27.
  • the magazine can 27 is configured to hold a plurality of extra yarn supply bobbins 21.
  • the bobbin feeder 26 intermittently drives and rotates the magazine can 27, and thereby feeds a new yarn supply bobbin 21 to the bobbin support part 7.
  • the bobbin feeder 26 includes a yarn end holder 28 for sucking and holding a yarn end of the yarn supply bobbin 21 held on the magazine can 27.
  • the yarn accumulation device 18 mainly includes a yarn accumulation roller 32 and a roller drive motor 33.
  • the yarn accumulation roller 32 is a substantially cylindrical member and configured to accumulate the yarn 20 by winding the yarn 20 on an outer circumferential surface thereof.
  • the roller drive motor 33 is configured to drive and rotate the yarn accumulation roller 32 around the central axis thereof. An operation of the roller drive motor 33 is controlled by the control part 25.
  • an end portion of the yarn accumulation roller 32 at the side where the roller drive motor 33 is arranged will be called a proximal end portion, and the opposite end portion will be called a distal end portion.
  • a proximal side taper portion 32a is formed in the proximal end portion of the yarn accumulation roller 32.
  • the proximal side taper portion 32a has a tapered shape whose diameter increases toward an end portion.
  • a distal side taper portion 32b is formed in the distal end portion of the yarn accumulation roller 32.
  • the distal side taper portion 32b has a tapered shape whose diameter increases toward an end portion. Forming such taper portions prevents the yarn 20 from slipping off from the end portions of the yarn accumulation roller 32.
  • a portion having a cylindrical shape (a portion having a substantially constant diameter) will be called a cylindrical portion 32c.
  • the cylindrical portion 32c also has an extremely small taper for moving the accumulated yarn toward the downstream side.
  • the guide tube 34 of the upper yarn pull-out part 48 is arranged near a boundary portion between the proximal side taper portion 32a and the cylindrical portion 32c of the yarn accumulation roller 32 (a configuration of the upper yarn pull-out part 48 will be described later).
  • the guide tube 34 is a tube-like member, and arranged such that one end portion (suction side end portion 34a) thereof is located close to the surface of the yarn accumulation roller 32.
  • the yarn of the yarn supply bobbin 21 side is introduced into the guide tube 34 through the other end portion (ejection side end portion 34b) of the guide tube 34, and then pulled out from the suction side end portion 34a toward the surface of the yarn accumulation roller 32.
  • the guide tube 34 guides the yarn 20 of the yarn supply bobbin 21 to the surface of the yarn accumulation roller 32.
  • the yarn accumulation roller 32 having the yarn 20 wound thereon is rotated in one direction, and thereby a tensile force is applied to the yarn 20 existing at the upstream side (yarn supply bobbin 21 side) of the yarn accumulation device 18.
  • This enables the yarn 20 to be unwound from the yarn supply bobbin 21 and wound on the surface of the yarn accumulation roller 32.
  • the yarn 20 is guided to the boundary portion between the proximal side taper portion 32a and the cylindrical portion 32c. Therefore, while the yarn 20 is sequentially wound on the cylindrical portion 32c, the yarn 20 pushes up a preceding yarn layer from the proximal end portion side.
  • the yarn 20 accumulated on the yarn accumulation roller 32 is pushed by the newly wound yarn 20, and sequentially fed toward the distal end portion side on the surface of the cylindrical portion 32c.
  • the yarn 20 is, while being orderly arranged into a spiral shape, regularly wound on the outer circumferential surface of the yarn accumulation roller 32 from the proximal end portion side.
  • a rotation of the yarn accumulation roller 32 at a time of the normal winding will be called a "positive rotation”
  • a rotation of the yarn accumulation roller 32 in a direction opposite to the positive rotation will be called a "reverse rotation”.
  • the yarn 20 accumulated on the yarn accumulation roller 32 is pulled out from the distal side taper portion 32b of the yarn accumulation roller 32, and fed toward the downstream side (winding part 8 side).
  • the yarn 20 accumulated on the yarn accumulation roller 32 is pulled out toward the downstream side through a pull-out guide 37 that is arranged on an extension of the central axis of the yarn accumulation roller 32. Since the yarn 20 is pulled out toward the extension of the central axis of the yarn accumulation roller 32, it is possible to pull out the yarn 20 from the yarn accumulation roller 32 irrespective of a state of rotation of the yarn accumulation roller 32.
  • the winding part 8 is able to unwind the yarn 20 from the yarn accumulation roller 32 and wind the yarn 20 into the package 30.
  • a rubber band (O-ring) 32d is arranged in a boundary portion between the cylindrical portion 32c and the distal side taper portion 32b of the yarn accumulation roller 32.
  • the yarn 20 passes between the rubber band 32d and the surface of the yarn accumulation roller 32. Due to the distal side taper portion 32b, the rubber band 32d itself is inhibited from being dragged by the yarn and falling off.
  • an adequate tensile force caused by the rubber band 32d fastening the yarn accumulation roller 32 can be applied to the yarn 20 unwound from the yarn accumulation roller 32. This can stabilize the unwinding of the yarn 20. Furthermore, it is possible to unwind the yarn while untangling a mass of the yarn.
  • An upper limit sensor 36 and a lower limit sensor 35 are arranged near the yarn accumulation roller 32.
  • the upper limit sensor 36 detects that the amount of the yarn 20 on the yarn accumulation roller 32 reaches a predetermined upper limit value or more.
  • the lower limit sensor 35 detects that the amount of the yarn 20 on the yarn accumulation roller 32 falls below a predetermined lower limit value. Results of detection obtained by the lower limit sensor 35 and the upper limit sensor 36 are sent to the control part 25.
  • the control part 25 When it is detected that the amount of yarn accumulated on the yarn accumulation roller 32 falls below the lower limit value, the control part 25 appropriately controls the roller drive motor 33 to increase the speed of rotation of the yarn accumulation roller 32. This increases the speed of winding of the yarn 20 onto the yarn accumulation roller 32. At a time of the normal winding, the speed of rotation of the traverse drum 24 is substantially constant, and therefore the speed of unwinding of the yarn 20 from the yarn accumulation roller 32 into the package 30 side is substantially constant.
  • the control part 25 controls the roller drive motor 33 such that the speed of winding of the yarn 20 onto the yarn accumulation roller 32 is higher than the speed of unwinding of the yarn 20 from the yarn accumulation roller 32. As a result, the amount of the yarn 20 accumulated on the yarn accumulation roller 32 can be gradually increased.
  • the control part 25 appropriately controls the roller drive motor 33 to reduce the speed of rotation of the yarn accumulation roller 32. This reduces the speed of winding of the yarn 20 onto the yarn accumulation roller 32.
  • the control part 25 controls the roller drive motor 33 such that the speed of winding of the yarn 20 onto the yarn accumulation roller 32 is lower than the speed of unwinding of the yarn 20 from the yarn accumulation roller 32. As a result, the amount of the yarn 20 on the yarn accumulation roller 32 can be gradually reduced.
  • the above-described control enables the amount of the yarn 20 accumulated on the yarn accumulation roller 32 to be kept in the range from the lower limit value or more and less than the upper limit value.
  • the control part 25 drives the bobbin support part 7, to discharge the empty bobbin. Then, the control part 25 drives the magazine can 27 of the bobbin feeder 26, to feed a new yarn supply bobbin 21 to the bobbin support part 7. At this time, as shown in FIG. 4 , the new yarn supply bobbin 21 is fed with an inclined attitude. As described above, the yarn end of the yarn supply bobbin 21 held on the magazine can 27 is sucked and held by the yarn end holder 28. Therefore, a situation is created in which the yarn 20 stretches between the yarn end holder 28 and the yarn supply bobbin 21 fed from the magazine can 27. In the following description, when particularly needed, the yarn 20 of the yarn supply bobbin 21 side will be referred to as a lower yarn 20a.
  • the control part 25 drives the bobbin support part 7, to make the new yarn supply bobbin 21 stand upright, and also drives a yarn displacement member 43 that is arranged near the lower yarn blow-up part 11.
  • the yarn displacement member 43 is engageable with the lower yarn 20a existing between the yarn supply bobbin 21 and the yarn end holder 28, and movable toward the lower yarn blow-up part 11.
  • the yarn displacement member 43 displaces the lower yarn 20a toward the lower yarn blow-up part 11, as shown in FIG. 5 .
  • the lower yarn blow-up part 11 is in the shape of a block as shown in a perspective view of an external appearance of FIG. 6 .
  • the block has a yarn introduction hole 41 and a slit 42 that communicates with the yarn introduction hole 41.
  • the lower yarn 20a is displaced by the yarn displacement member 43, and introduced into the yarn introduction hole 41 through the slit 42.
  • an air ejection nozzle 44 that communicates with the yarn introduction hole 41 is formed in the lower yarn blow-up part 11.
  • the air ejection nozzle 44 is a circular hole having an elongated shape.
  • the air ejection nozzle 44 is connected to an appropriate compressed air source 46 via an electromagnetic valve 45.
  • the electromagnetic valve 45 is controlled by the control part 25. In the above-described configuration, when the control part 25 puts the electromagnetic valve 45 into an open state, compressed air is supplied through the air ejection nozzle 44 into the yarn introduction hole 41.
  • An ejection port of the air ejection nozzle 44 is formed such that air is ejected toward the downstream side with respect to the direction of traveling of the yarn 20. Accordingly, when the compressed air is ejected through the air ejection nozzle 44, an air stream flowing toward the downstream side (upward in FIG. 7 ) with respect to the direction of traveling of the yarn 20 is generated in the yarn introduction hole 41. As a result, the lower yarn 20a introduced into the yarn introduction hole 41 is blown off toward the downstream side by the air stream.
  • the control part 25 cuts the lower yarn 20a between the yarn supply bobbin 21 and the yarn end holder 28 by means of a cutter (not shown), and additionally opens the electromagnetic valve 45 to supply the compressed air to the air ejection nozzle 44. As a result, an air stream flowing toward the downstream side is generated in the yarn introduction hole 41. This air stream blows off the lower yarn 20a toward the downstream side.
  • the yarn trap 15 described above is arranged at the downstream side of the lower yarn blow-up part 11.
  • the suction stream is generated at the distal end of the yarn trap 15.
  • the lower yarn 20a blown off by the lower yarn blow-up part 11 is sucked and caught by the yarn trap 15. This situation is shown in FIG. 8 .
  • a yarn trap driver 47 is arranged near the yarn trap 15.
  • the yarn trap driver 47 is configured to drive the yarn trap 15 in a direction toward and away from the yarn travel path.
  • An operation of the yarn trap driver 47 is controlled by the control part 25.
  • the control part 25 actuates the yarn trap driver 47 to thereby drive the yarn trap 15 in the direction away from the yarn travel path.
  • the lower yarn 20a is introduced to the yarn joining device 14, as shown in FIG. 9 .
  • the lower yarn 20a can be introduced to the yarn joining device 14 by means of the lower yarn blow-up part 11 and the yarn trap 15. Accordingly, it can be considered that the lower yarn blow-up part 11, the yarn trap 15, and the negative pressure source that generates the suction air stream in the yarn trap 15, form a lower yarn guide part (second yarn guide part).
  • the lower yarn 20a is blown off and guided to the downstream side of the yarn joining device 14 by means of the air stream.
  • This enables the lower yarn to be quickly guided with a simple configuration, as compared with, for example, a lower yarn guide member (the lower yarn guide pipe 92 shown in FIG. 19 ) included in the conventional winder unit.
  • the control part 25 puts the electromagnetic valve 45 into a closed state. This can prevent wasteful consumption of the compressed air.
  • the control part 25 performs a control for guiding the yarn of the yarn accumulation device 18 side to the yarn joining device 14.
  • a specific description will be given below.
  • the yarn 20 of the yarn accumulation device 18 side will be referred to as an upper yarn 20b.
  • the upper yarn pull-out part 48 includes the above-mentioned guide tube 34 (yarn pull-out ejection part) and an air ejection nozzle (air ejection part) 49 that communicates with the inside of the guide tube 34.
  • the air ejection nozzle 49 is a circular hole having an elongated shape.
  • the air ejection nozzle 49 is connected to the appropriate compressed air source 46 via an electromagnetic valve 51.
  • the electromagnetic valve 51 is controlled by the control part 25. In the above-described configuration, when the control part 25 puts the electromagnetic valve 51 into an open state, compressed air is supplied through the air ejection nozzle 49 into the guide tube 34.
  • An ejection port of the air ejection nozzle 49 is formed such that air is ejected toward the ejection side end portion 34b (such that air is ejected in a direction away from the surface of the yarn accumulation roller 32). Accordingly, when the compressed air is ejected through the air ejection nozzle 49, an air stream flowing toward the ejection side end portion 34b is generated in the guide tube 34. As a result, air is ejected from the ejection side end portion 34b. On the other hand, along with the air stream generated in the guide tube 34, a suction stream is generated in the opposite end portion (suction side end portion 34a).
  • the control part 25 puts the electromagnetic valve 51 into the open state so that the compressed air is supplied through the air ejection nozzle 49 into the guide tube 34. Under this condition, the control part 25 appropriately controls the roller drive motor 33, thereby causing reverse rotation of the yarn accumulation roller 32. As a result, a yarn end is unwound from the proximal end portion side of the cylindrical portion 32c of the yarn accumulation roller 32. This yarn end is sucked by the suction stream generated in the suction side end portion 34a of the guide tube 34, and introduced into the guide tube 34.
  • the suction port 91a of the upper yarn guide pipe 91 for sucking and catching a yarn end of a yarn wound into the package 30 is enlarged with respect to a width direction of the package.
  • the reason therefor is as follows. Since the yarn is traversed when being wound on the surface of the package 30, where on the package 30 with respect to the width direction thereof the yarn end of the yarn wound into the package 30 is positioned is uncertain after the clearer 17 detects a yarn defect so that the cutter 16 cuts the yarn or after the yarn of the yarn supply bobbin 21 is fully wound. Therefore, in order to reliably suck and catch the yarn end, it is necessary to generate the suction stream throughout the entire width of the package 30.
  • the yarn 20 is regularly wound on the yarn accumulation roller 32 while being orderly arranged from the boundary portion between the cylindrical portion 32c and the proximal side taper portion 32a.
  • the guide tube 34 guides the yarn of the yarn supply bobbin 21 side to the boundary portion between the cylindrical portion 32c and the proximal side taper portion 32a. Accordingly, after the clearer 17 detects a yarn defect so that the cutter 16 cuts the yarn or after the yarn of the yarn supply bobbin 21 is fully wound, the yarn end of the yarn wound on the yarn accumulation roller 32 is always positioned near the boundary portion between the cylindrical portion 32c and the proximal side taper portion 32a.
  • the yarn end can be reliably sucked. That is, by generating the suction stream in the guide tube 34, the yarn end can be reliably sucked.
  • an enlarged suction port for sucking the upper yarn is not required. This enables a suction stream sufficient for sucking the upper yarn to be generated by less energy.
  • the yarn end sucked into the guide tube 34 is, along with the air stream generated in the guide tube 34, blown out from the ejection side end portion 34b. Air ejection from the ejection side end portion 34b is oriented toward a position where a yarn inlet 61 of a deflection guide member 60 is arranged.
  • the deflection guide member 60 is a curved tube-like member having the yarn inlet 61 at one end side thereof and a yarn outlet 62 at the other end side thereof. Air ejected from the ejection side end portion 34b of the guide tube 34 flows through the yarn inlet 61 into the deflection guide member 60, and is guided through a curved path while passing through the inside of the curved deflection guide member 60, and then is discharged through the yarn outlet 62 to the outside of the deflection guide member 60.
  • the upper yarn 20b blown out together with the ejected air from the upper yarn pull-out part 48 is, along with an air stream flowing in the curved path inside the deflection guide member 60, guided from the yarn inlet 61 to the yarn outlet 62, as shown in FIG. 11 .
  • the yarn outlet 62 leads to a position where the upper yarn catch part 13 is arranged.
  • the upper yarn catch part 13 is connected to the negative pressure source (not shown) and configured such that a suction stream is generated in a suction stream generation port that is provided at the distal end of the upper yarn catch part 13.
  • a movable lid 13a is arranged in the suction stream generation port of the upper yarn catch part 13. The lid 13a is driven by the control part 25, and switched between a state where the suction stream generation port is closed and a state where the suction stream generation port is open.
  • the control part 25 drives the lid 13a to open the suction stream generation port of the upper yarn catch part 13, so that a suction stream is generated in the upper yarn catch part 13.
  • the upper yarn 20b guided to the yarn outlet 62 of the deflection guide member 60 can be sucked and held by the upper yarn catch part 13.
  • the control part 25 performs a control to close the suction stream generation port with the lid 13a. This can prevent air from flowing into the upper yarn catch part 13, and therefore can prevent wasteful consumption of energy.
  • an air flow may be controlled by means of an electromagnetic valve.
  • the deflection guide member 60 has a slit 63 through which the outside and inside of the deflection guide member 60 are communicated with each other.
  • the slit 63 is formed along a longitudinal direction of the tube-like deflection guide member 60, and connects the yarn inlet 61 and the yarn outlet 62 to each other.
  • the deflection guide member 60 has a substantially U-like shape, and the slit 63 is formed along an inner portion of this U-like shape.
  • the upper yarn 20b drawn out from the deflection guide member 60 is further sucked by the upper yarn catch part 13, and thereby the upper yarn 20b can be introduced to the yarn joining device 14, as shown in FIG. 13 .
  • the guide tube 34, the air ejection nozzle 49, the deflection guide member 60, the upper yarn catch part 13, and the negative pressure source that generates a suction air stream in the upper yarn catch part 13, achieve a configuration for guiding the upper yarn 20b to the upstream side of the yarn joining device 14. Accordingly, it can be considered that the guide tube 34, the air ejection nozzle 49, the deflection guide member 60, the upper yarn catch part 13, and the negative pressure source, form an upper yarn guide part (yarn guide part).
  • the air stream is used to blow off the upper yarn 20b and guide the upper yarn 20b to the upstream side of the yarn joining device 14.
  • This enables the upper yarn to be quickly guided with a simple configuration, as compared with, for example, an upper yarn guide member (the upper yarn guide pipe 91 shown in FIG. 19 ) included in the conventional winder unit. Therefore, a time required for the yarn joining operation is shortened, and thus the production efficiency of the package 30 is improved.
  • control part 25 stops the reverse rotation of the yarn accumulation roller 32 and additionally puts the electromagnetic valve 51 into a closed state. Then, the control part 25 closes the lid 13a of the upper yarn catch part 13. Then, the control part 25 actuates the yarn joining device 14, thus performing yarn joining between the upper yarn 20b and the lower yarn 20a.
  • the control part 25 starts positive rotation of the yarn accumulation roller 32, thus starting to unwind the yarn from the new yarn supply bobbin 21.
  • the control part 25 drives the yarn trap 15 to a position close to the yarn travel path, and restarts to suck and remove cotton fly.
  • the control part 25 opens the lid 13a of the upper yarn catch part 13 for a short time. Thereby, a piece of the yarn (the upper yarn having been cut in the yarn joining) caught by the upper yarn catch part 13 is sucked and removed.
  • the normal winding operation shown in FIG. 1 can be restarted.
  • the upper yarn 20b is drawn out from the inside of the deflection guide member 60. Accordingly, at a time of the normal winding (the state shown in FIG. 1 ), the yarn 20 does not pass through the inside of the deflection guide member 60.
  • the yarn 20 might be in contact with the deflection guide member 60 and thus damaged to deteriorate the quality of the yarn.
  • the yarn 20 is not in contact with deflection guide member 60 during the normal winding operation. Therefore, deterioration in the quality of the yarn is prevented.
  • the deflection guide member 60 is not connected with other members. More specifically, the deflection guide member 60 is arranged such that the yarn inlet 61 of the deflection guide member 60 is spaced apart from the upper yarn pull-out part 48. Likewise, the deflection guide member 60 is arranged such that the yarn outlet 62 of the deflection guide member 60 is spaced apart from the upper yarn catch part 13. In this manner, a space is formed between the deflection guide member 60 and the other members. In other words, the deflection guide member 60 is arranged at a position deviated from the yarn travel path. Therefore, the yarn 20 drawn out from the deflection guide member 60 is able to travel without any contact with the deflection guide member 60. In this point as well, damage to the yarn 20 which may be caused by contact with the deflection guide member 60 is prevented at a time of the normal winding. Thus, deterioration in the quality of the yarn is prevented.
  • the traversing bobbin winding machine disclosed in the Patent Document 1 also includes a suction nozzle having a slit.
  • negative pressure is used to suck a yarn and guide the yarn to the yarn joining device.
  • a suction force generated in the distal end of the suction nozzle may be deteriorated.
  • a suction stream is directly generated near the yarn accumulation device 18 by means of ejected air. Therefore, even though the slit 63 is formed in the deflection guide member 60, a problem such as deterioration in a suction force does not occur.
  • the deflection guide member 60 is a tube-like member. Therefore, air ejected from the upper yarn pull-out part 48 can be successfully guided from the yarn inlet 61 to the yarn outlet 62.
  • the yarn 20 is blown off and guided. Therefore, a member driven into large movement, such as the yarn guide pipes 91 and 92 shown in FIG. 19 , is not necessary. Accordingly, the configuration of the automatic winder is simplified, and additionally the degree of freedom in a layout of configuration parts is increased. Furthermore, in this embodiment, a path through which the upper yarn 20b is guided is curved because of the deflection guide member 60. Therefore, even though a direction in which the yarn is blown out from the upper yarn pull-out part 48 is not oriented to the position where the upper yarn catch part 13 is arranged, the upper yarn 20b can be guided to the upper yarn catch part 13. Thus, devising the shape of the deflection guide member 60 allows a free layout of the positions of the upper yarn pull-out part 48 and the upper yarn catch part 13.
  • the control part 25 actuates the cutter 16 to cut the yarn 20.
  • a yarn end at the upstream side of the cutter 16 is sucked and caught by the yarn trap 15 that is arranged at the immediately upstream side of the cutter 16.
  • a yarn end at the downstream side of the cutter 16 is wound on the yarn accumulation roller 32 that is in positive rotation. As a result, a portion of the yarn containing the yarn defect is wound to the proximal end portion side of the yarn accumulation roller 32.
  • the state of the lower yarn 20a and the upper yarn 20b is similar to the state shown in FIG. 8 .
  • the cutter 16 cuts the yarn 20
  • the end of the yarn having been cut is directly sucked and caught by the yarn trap 15. Therefore, the operation for blowing the lower yarn 20a upward by the lower yarn blow-up part 11 is not necessary. In this point, this operation is different from the operation for replacing the yarn supply bobbin 21.
  • the yarn trap 15 is driven in the direction away from the yarn travel path, and thereby the lower yarn 20a sucked and caught by the yarn trap 15 is introduced to the yarn joining device 14 (similar to the state shown in FIG. 9 ).
  • the yarn accumulation roller 32 is put into reverse rotation, and at the same time the electromagnetic valve 51 is put into the open state. Additionally, the lid 13a is opened.
  • the upper yarn 20b is introduced to the yarn joining device 14 (similar to the state shown in FIG. 13 ).
  • the reverse rotation of the yarn accumulation roller 32 is continued for a predetermined time period. Thereby, the portion containing the yarn defect, which has been wound on the yarn accumulation roller 32, is pulled out and sucked by the upper yarn catch part 13.
  • the portion containing the yarn defect detected by the clearer 17 can be removed.
  • the control part 25 actuates the yarn joining device 14, to perform yarn joining.
  • the upper yarn 20b is blown off and guided by means of ejected air.
  • This enables the upper yarn 20b to be quickly guided with a simple configuration, as compared with the upper yarn guide member (the upper yarn guide pipe 91 shown in FIG. 19 ) included in the conventional winder unit.
  • the lower yarn 20a can be guided to the yarn joining device 14 simply by driving the yarn trap 15 under a state where the lower yarn 20a is sucked and caught by the yarn trap 15. Therefore, in a case where a yarn defect is detected, the lower yarn 20a is easily and quickly guided. In this manner, also in a case where a yarn defect is detected, a time required for the yarn joining operation is shortened, and thus the production efficiency of the package 30 is improved.
  • the automatic winder of this embodiment includes the bobbin support part 7, the yarn accumulation device 18, the winding part 8, the yarn joining device 14, and the upper yarn guide part.
  • the bobbin support part 7 supports the yarn supply bobbin 21.
  • the yarn accumulation device 18 accumulates the yarn 20 unwound from the yarn supply bobbin 21.
  • the winding part 8 winds the yarn 20 accumulated on the yarn accumulation device 18, to form the package 30.
  • the yarn joining device 14 performs yarn joining between a yarn of the yarn supply bobbin 21 side and a yarn of the yarn accumulation device 18 side, in a case where the yarn 20 is disconnected between the bobbin support part 7 and the yarn accumulation device 18.
  • the upper yarn guide part pulls out a yarn from the yarn accumulation device 18 and guides the yarn to the yarn joining device 14.
  • the upper yarn guide part includes the guide tube 34, the air ejection nozzle 49, the upper yarn catch part 13, and the negative pressure source.
  • the guide tube 34 pulls out the yarn 20 accumulated on the yarn accumulation device 18, and blows off the yarn 20 toward the bobbin support part 7 side.
  • the air ejection nozzle 49 generates an air stream in the guide tube 34, the air stream being for pulling out and blowing off the yarn.
  • the upper yarn catch part 13 is arranged between the yarn joining device 14 and the bobbin support part 7, and catches the yarn 20 blown off by the guide tube 34.
  • the negative pressure source generates an air stream in the upper yarn catch part 13, the air stream being for catching the yarn and introducing the yarn to the yarn joining device 14.
  • the configuration for guiding the upper yarn 20b is simple. As a result, the degree of freedom in a layout of configuration parts is improved. Moreover, since guiding of the upper yarn 20b to the yarn joining device 14 is completed merely by blowing off the upper yarn 20b, a time required for the operation for guiding the upper yarn 20b is shortened and thus the production efficiency of the package 30 is improved. Furthermore, in a case where the upper yarn 20b is pulled out from the yarn accumulation device 18 as described above, it suffices that the suction stream is applied only to a position where the yarn end exists, which is known. This enables the yarn end to be reliably sucked with less energy.
  • the automatic winder of this embodiment is configured as follows. At a time of yarn winding, the guide tube 34 guides the yarn 20 of the yarn supply bobbin 21 side to the yarn accumulation device 18. The air ejection nozzle 49 blasts compressed air to the inside of the guide tube 34.
  • the yarn 20 is accumulated on the yarn accumulation device 18 through the guide tube 34. Therefore, when, reversely, the yarn is pulled out from the yarn accumulation device 18, the pulling out of the yarn from the yarn accumulation device can be reliably and smoothly performed by pulling out the yarn through the guide tube 34. Accordingly, the above-described configuration in which the guide tube 34 also serves as a yarn pull-out ejection part enables the yarn 20 wound on the yarn accumulation device 18 to be reliably and smoothly blown off.
  • the automatic winder of this embodiment further includes the deflection guide member 60 that guides the upper yarn 20b, which has been blown off by the guide tube 34, to the upper yarn catch part 13.
  • the guide tube 34 and the upper yarn catch part 13 can be freely arranged. This improves the degree of freedom in a layout.
  • the deflection guide member 60 is a tube-like member, in which the slit 63 is formed along a longitudinal direction of a tube.
  • the deflection guide member 60 having such a tube-like shape allows the upper yarn 20b to pass through the inside of the tube and thereby reliably guides the upper yarn 20b to the upper yarn catch part 13. Since the slit 63 is formed in the deflection guide member 60 having a tube-like shape, the upper yarn 20b having been guided to the upper yarn catch part 13 can be drawn out through the slit 63. As a result, at a time of the normal winding, the yarn 20 is able to travel outside the deflection guide member 60. This can prevent deterioration in the quality of the yarn 20, which may otherwise be caused by contact with the deflection guide member 60.
  • the deflection guide member 60 is provided at a position deviated from the travel path through which the yarn 20 travels at a time of the yarn winding.
  • the automatic winder of this embodiment includes the lower yarn guide part that guides the lower yarn 20a of the yarn supply bobbin 21 side to the yarn joining device 14.
  • the lower yarn guide part includes the lower yarn blow-up part 11, the yarn trap 15, and the negative pressure source.
  • the lower yarn blow-up part 11 is arranged between the bobbin support part 7 and the yarn joining device 14, and configured to blow off the lower yarn 20a of the yarn supply bobbin 21 side to a position near the yarn joining device 14.
  • the yarn trap 15 is arranged between the yarn joining device 14 and the yarn accumulation device 18, and configured to catch the lower yarn 20a blown off by the lower yarn blow-up part 11.
  • the negative pressure source generates an air stream in the yarn trap 15, the air stream being for catching the lower yarn 20a.
  • the yarn of the yarn supply bobbin 21 side can be blown off and guided to the yarn joining device 14. This can further improve the degree of freedom in a layout of configuration parts of the yarn winding machine, and further shorten a time required for the yarn joining.
  • the automatic winder of this embodiment includes the yarn trap driver 47 that drives the yarn trap 15 in the direction toward and away from the yarn travel path.
  • the automatic winder of this embodiment includes the control part 25 that controls actuation of the yarn trap driver 47. At a time of the normal winding, the control part 25 brings the yarn trap 15 close to the yarn travel path, and at a time of the yarn joining, the control part 25 drives the yarn trap 15 in the direction away from the yarn travel path under a state where the yarn 20 is caught by the yarn trap 15, to thereby introduce the caught yarn 20 to the yarn joining device 14.
  • the yarn trap 15 is located close to the yarn travel path, to make it possible to suck and remove cotton fly, or the like, adhering to the yarn 20.
  • the yarn trap 15 catches the yarn
  • the yarn trap 15 is driven in the direction away from the yarn travel path, and thereby the yarn 20 can be introduced to the yarn joining device.
  • the automatic winder of this embodiment includes the control part 25 that controls the yarn joining device 14, the upper yarn pull-out part 48, and the lower yarn blow-up part 11.
  • the control part 25 causes the lower yarn blow-up part 11 to blow off the lower yarn 20a of the new yarn supply bobbin 21 side, causes the yarn trap 15 to catch the yarn thus blown off, and drives the yarn trap 15 in the direction away from the yarn travel path.
  • the control part 25 causes the upper yarn pull-out part 48 to pull out the upper yarn 20b from the yarn accumulation device 18 and blow off the upper yarn 20b, and causes the upper yarn catch part 13 to catch the yarn thus blown off.
  • the control part 25 actuates the yarn joining device 14, to perform the yarn joining.
  • the yarn supply bobbin 21 when the yarn supply bobbin 21 is replaced, the lower yarn 20a of the yarn supply bobbin 21 side and the upper yarn 20b of the yarn accumulation device 18 side are guided to the yarn joining device 14, and thus the yarn joining can be performed.
  • the automatic winder of this embodiment includes the clearer 17 and the cutter 16.
  • the cutter 16 is configured to, at a position at the downstream side of the yarn trap 15, cut the yarn between the yarn supply bobbin 21 and the yarn accumulation device 18.
  • the control part 25 actuates the cutter to cut the yarn, causes the yarn trap 15 to catch the lower yarn 20a of the yarn supply bobbin 21 side, and drives the yarn trap 15 in the direction away from the yarn travel path.
  • the control part 25 causes the upper yarn pull-out part 48 to pull out the upper yarn 20b of the yarn accumulation device 18 side and blow off the upper yarn 20b, and causes the upper yarn catch part 13 to catch the yarn thus blown off.
  • the control part 25 actuates the yarn joining device 14, to perform the yarn joining.
  • the yarn of the yarn supply bobbin side and the yarn of the yarn accumulation device side are guided to the yarn joining device, and thus the yarn joining can be performed.
  • a configuration of this modification is also possible, in which the lower yarn 20a is guided to the yarn joining device 14 by means of the conventional yarn guide member (yarn guide pipe 92).
  • the upper yarn 20b is guided to the yarn joining device 14 by means of ejected air. Therefore, as compared with the conventional configuration (the configuration shown in FIG. 19 ) in which both the upper yarn 20b and the lower yarn 20a are guided by means of the yarn guide pipes 91 and 92, a simple configuration is achieved and additionally a time required for the yarn joining is shortened.
  • a winder unit 100 included in an automatic winder according to this embodiment includes a yarn accumulation device of different type from that of the above-described first embodiment.
  • this yarn accumulation device 64 will be described with reference to FIG. 16 .
  • the yarn accumulation device 64 includes a rotation shaft casing 70, a yarn accumulation part 71, and a yarn guide part 72.
  • the rotation shaft casing 70 includes a cylindrical tube portion 78 that is open at the upper side thereof, and a flange portion 79 that is formed at an open end portion of the tube portion 78.
  • the upper yarn pull-out part 48 is arranged at the immediately upstream side of the yarn accumulation device 64.
  • the yarn accumulation part 71 is arranged above the flange portion 79.
  • the yarn accumulation part 71 includes a support plate 81 having a disk shape, a plurality of rod members 82 that protrude upward from the support plate 81, and a mounting plate 83 having a disk shape to which distal end portions of the plurality of rod members 82 are connected.
  • the yarn accumulation part 71 is arranged such that there is a gap between the support plate 81 and the flange portion 79.
  • a winding tube 75 which will be described later, is rotatable within the gap.
  • the plurality of rod members 82 are arranged side by side at regular intervals on the circumference of a circle that is perpendicular to the vertical direction. These rod members 82 define a substantially cylindrical shape of the yarn accumulation part 71.
  • the yarn 20 is wound on an outer circumferential portion of the yarn accumulation part 71 having a substantially cylindrical shape defined by the plurality of rod members 82. Thereby, the yarn 20 is accumulated on the yarn accumulation part 71.
  • the yarn guide part 72 is arranged within the rotation shaft casing 70.
  • an introduction hole 80 is formed in a lower portion (at the end opposite to the yarn accumulation part 71 side) of the tube portion 78.
  • the guide tube 34 of the upper yarn pull-out part 48 is connected to the introduction hole 80.
  • the yarn 20 pulled out from the yarn supply bobbin 21 is guided to the introduction hole 80 by the guide tube 34, and led through the introduction hole 80 to the yarn guide part 72.
  • the rotation shaft casing 70 and a rotation shaft 73 are arranged within the tube portion 78.
  • the rotation shaft 73 is mounted to the yarn accumulation part 71 in a relatively rotatable manner.
  • a servomotor (yarn accumulation driving part) 55 is incorporated between the rotation shaft 73 and the tube portion 78, and thus positive rotation and reverse rotation of the rotation shaft 73 are allowed.
  • a yarn passage 74 in the shape of an axial hole is provided at the center of the rotation shaft 73.
  • a winding tube (winding means) 75 having a cylindrical shape is fixed to one end of the rotation shaft 73 (an end portion thereof opposite to the introduction hole 80 side).
  • the winding tube 75 is slightly inclined upward, and obliquely extends out through the gap between the rotation shaft casing 70 (flange portion 79) and the support plate 81.
  • a part of a distal end portion of the winding tube 75 slightly protrudes out from the rotation shaft casing 70.
  • the winding tube 75 is rotatable integrally with the rotation shaft 73.
  • the inside of the winding tube 75 is connected to the yarn passage 74.
  • the yarn 20 is led through the introduction hole 80 of the yarn guide part 72 into the rotation shaft casing 70, and then passes through the yarn passage 74 and the inside of the winding tube 75, and then is discharged from the distal end of the winding tube 75.
  • the yarn 20 is guided to a side surface portion of the yarn accumulation part 71. Accordingly, when the servomotor 55 is driven in a positive direction, the winding tube 75 is rotated together with the rotation shaft 73, thus winding the yarn 20 around the side surface portion.
  • each of the plurality of rod members 82 is arranged such that it is inclined more inward of the yarn accumulation part 71 at a location farther from its end at the support plate 81 side and closer to its end at the mounting plate 83 side.
  • Such inclination of the rod member 82 causes the yarn wound on the yarn accumulation part 71 to move upward in a sliding manner. Accordingly, when the winding tube 75, which will be described later, continuously wind the yarn 20, the yarn wound on the inclined portion moves upward.
  • the yarn 20 is accumulated while being orderly arranged into a spiral shape.
  • the upper yarn pull-out part 48 includes the guide tube 34 and the air ejection nozzle 49.
  • the air ejection nozzle 49 is connected to the electromagnetic valve 51 that is controlled by the control part 25.
  • the electromagnetic valve 51 is connected to the compressed air source 46.
  • An air ejection port of the air ejection nozzle 49 is formed such that air is ejected toward the upstream side with respect to the direction of traveling of the yarn.
  • the control part 25 stops the servomotor 55 and puts the electromagnetic valve 51 into the open state, to generate an air stream in the guide tube 34. Thereby, the yarn can be pulled out from the yarn accumulation device 64.
  • the guide tube 34 is formed with an appropriate curve.
  • a distal end portion of the guide tube 34 having such a curve is oriented to a position where the yarn inlet 61 of the deflection guide member 60 is arranged. Accordingly, the yarn pulled out from the yarn accumulation device 64 can be introduced to the deflection guide member 60.
  • the above-described configuration enables the upper yarn of the yarn accumulation device 64 side to be guided to the yarn joining device 14.
  • the deflection guide member is omitted as shown in FIG. 17
  • the guide tube 34 has a cylindrical shape without any curve as shown in FIG. 18 .
  • the distal end of the guide tube 34 is oriented toward the yarn supply bobbin 21. This configuration allows the yarn accumulated on the yarn accumulation device 64 to be pulled out to the immediately upstream side without being curved.
  • the yarn travel path is bent due to the guide tube 34, and thereby the yarn 20 of the yarn supply bobbin 21 is guided to the yarn accumulation device.
  • the traveling yarn may be in contact with the guide tube 34 and damaged.
  • the yarn travel path is not bent by the guide tube 34. Therefore, damage to the yarn can be minimized.
  • the yarn introduction hole 80 is formed in the upstream end portion (lower end portion) of the yarn accumulation device 64, so that the yarn is pulled out through the introduction hole 80. Therefore, it is easy to adopt such a configuration that the yarn is pulled out straight toward the downstream side.
  • the yarn accumulation device 18 of the first embodiment on the other hand, the yarn is pulled out from the circumferential surface of the yarn accumulation roller 32 that is arranged in an inclined manner. Therefore, it is not easy to adopt such a configuration that the yarn is pulled out toward the downstream side. Accordingly, in a case of pulling out the yarn straight toward the downstream side as described above, it is preferable to adopt the yarn accumulation device 64 of the second embodiment.
  • an upstream yarn trap 115 is provided instead of the upper yarn catch part 13 included in the winder unit of the first and second embodiments described above.
  • the upstream yarn trap 115 is also connected to the negative pressure source, so that a suction stream is generated in a distal end portion of the upstream yarn trap 115.
  • the upstream yarn trap 115 is driven in a direction toward and away from the yarn travel path by a yarn trap driver 147.
  • the control part moves the upstream yarn trap 115 to a position close to the yarn travel path. Thereby, similarly to the yarn trap 15 provided at the downstream side, the upstream yarn trap 115 is able to such and remove cotton fly.
  • the control part 25 stops the servomotor 55 and puts the electromagnetic valve 51 into the open state, to generate an air stream in the guide tube 34. Thereby, the yarn can be blown off from the yarn accumulation device 64 straight toward the upstream side. The yarn thus blown off toward the upstream side is sucked by the suction stream that is generated by the upstream yarn trap, and caught by the upstream yarn trap. Under this condition, the control part retracts the upstream yarn trap. In the above-described configuration, the yarn pulled out from the yarn accumulation device 64 can be guided to the yarn joining device 14.
  • the rod members 82 are inclined in order that the yarn is wound while being orderly arranged in the yarn accumulation part 71.
  • a member that actively transfers the yarn upward may be provided instead of inclining the rod members.
  • a yarn in a yarn accumulation part is actively transferred upward by means of a roller member.
  • the roller drive motor 33 causes reverse rotation of the yarn accumulation roller 32.
  • the upper yarn pull-out part 48 pulling out the upper yarn 20b exerts a sufficiently strong force, it may be acceptable to merely put the roller drive motor 33 into a neutral mode.
  • the lower yarn 20a is firstly guided and then the upper yarn 20b is guided.
  • the upper yarn 20b may be firstly guided.
  • the number of yarn guide pipes is at most one. Therefore, the problem of interference between yarn guide pipes does not occur. Accordingly, the automatic winders according to the above-described embodiments or modifications thereof, the lower yarn 20a and the upper yarn 20b can be simultaneously guided.
  • the yarn trap 15 can be driven in the direction toward and away from the yarn travel path.
  • this configuration may be omitted, and instead the yarn trap 15 may be fixed at a position away from the yarn travel path (position that allows the lower yarn 20a to be introduced to the yarn joining device 14).
  • such a configuration cannot bring the yarn trap 15 close to the yarn travel path at a time of the normal winding. Therefore, it is difficult to strongly apply the suction stream to the yarn 20, and there is a possibility that cotton fly adhering to the yarn 20 cannot be reliably removed.
  • Such a configuration also involves a possibility that, when a yarn defect is detected so that the 3yarn 20 is cut, a yarn end of the lower yarn cannot be caught. Accordingly, it is preferable that the yarn trap 15 can be driven in the direction toward and away from the yarn travel path, as described in the embodiments above.
  • the shape of the deflection guide member 60 is not limited to the one adopted in the above-described embodiments. Any appropriate shape is adoptable, as long as the air ejected from the upper yarn pull-out part 48 can be appropriately guided to the upper yarn catch part 13.
  • the upper yarn 20b can be guided to the upper yarn catch part 13 without the deflection guide member 60. In such a case, therefore, the deflection guide member 60 can be omitted.
  • each winder unit 2 includes the control part 25, and instead a plurality of winder units may be controlled by a single control part.
  • the single control part 25 collectively controls a plurality of members.
  • an individual control part may be provided corresponding to each member to be controlled.
  • the control part 25 is composed of hardware and software. However, it may be acceptable that the function of the control part 25 is partially or wholly implemented by hardware dedicated therefor.
  • the yarn supply bobbin 21 is fed to the winder unit 2 by means of the bobbin feeder 26 of magazine type.
  • this configuration is not limiting.
  • a tray having the yarn supply bobbin 21 set thereon may be transported along an appropriate path, to thereby feed the yarn supply bobbin 21 to the winder unit 2.
  • the winding part 8 is configured to traverse the yarn 20 by means of the traverse drum 24.
  • an arm-type traverse mechanism may be adopted to traverse the yarn 20.
  • the present invention is not limited to an automatic winder, and the present invention is applicable to other types of yarn winding machines including a yarn joining device.

Claims (9)

  1. Garnwickelmaschine, welche aufweist:
    ein Spulenträgerteil (7), das eine Garnzufuhrspule (21) trägt;
    eine Garnsammelvorrichtung (18), die ein von der Garnzufuhrspule (21) aufgewickeltes Garn (20) sammelt;
    ein Wickelteil (8), das ein auf der Garnsammelvorrichtung (18) akkumuliertes Garn (20) aufwickelt, um eine Packung (30) zu bilden;
    eine Garnverbindungsvorrichtung (14), die eine Garnverbindung zwischen einem Garn (20a) der Garnzufuhrspule(21)-Seite und einem Garn (20b) der Garnsammelvorrichtung(18)-Seite durchführt, in einem Fall, wo ein Garn (20) zwischen dem Spulenträgerteil (7) und der Garnsammelvorrichtung (18) getrennt wird; und
    ein Garnführungsteil (13, 34), das ein auf der Garnsammelvorrichtung (18) gesammeltes Garn (20) zu der Garnverbindungsvorrichtung (14) führt,
    dadurch gekennzeichnet, dass das Garnführungsteil (13, 34) enthält:
    ein Garnabzieh-Auswurfteil (48), das ein auf der Garnsammelvorrichtung (18) gesammeltes Garn (20) abzieht und das Garn (20) zur Spulenträger(7)-Seite hin wegbläst;
    ein Luftauswurfteil (49), das einen Luftstrom in dem Garnabzieh-Auswurfteil (48) erzeugt und zum Abziehen und Wegblasen eines Garns (20) dient;
    ein Garnfangteil (13), das zwischen der Garnverbindungsvorrichtung (14) und dem Spulenträgerteil (7) angeordnet und konfiguriert ist, um ein von dem Garnabzieh-Auswurfteil (48) weggeblasenes Garn (20) aufzufangen;
    ein Garnauffang-Luftstrom-Erzeugungsteil, das einen Luftstrom in dem Garnauffangteil (13) erzeugt, wobei der Luftstrom zum Auffangen eines Garns (20) und Einführen des Garns (20) in die Garnverbindungsvorrichtung (14) dient,
    und dass die Garnwickelmaschine ferner ein zweites Garnführungsteil (11, 15) aufweist, das ein Garn (20) der Garnzufuhrspule (21) zu der Garnverbindungsvorrichtung (14) führt, wobei das zweite Garnführungsteil (11, 15) enthält:
    ein unteres Garnhochblasteil (11), das zwischen dem Spulenträgerteil (7) und der Garnverbindungsvorrichtung (14) angeordnet und konfiguriert ist, um ein Garn (20) der Garnzuführspule (21) zu der Garnverbindungsvorrichtung (14)-Seite wegzublasen;
    ein zweites Garnfangteil (15), das zwischen der Garnverbindungsvorrichtung (14) und der Garnsammelvorrichtung (18) angeordnet und konfiguriert ist, um ein von dem unteren Garnhochblasteil (11) weggeblasenes Garn (20) aufzufangen; und
    ein zweites Garnauffang-Luftstrom-Erzeugungsteil, das einen Luftstrom in dem zweiten Garnauffangteil (15) erzeugt, wobei der Luftstrom zum Auffangen eines Garns (20) dient.
  2. Die Garnwickelmaschine nach Anspruch 1, dadurch gekennzeichnet, dass das Garnabzieh-Auswurfteil (48) ein Führungsrohr (48) ist, das während des Wickelns vom Garns (20) ein Garn der Garnzufuhrspulen (21)-Seite zu der Garnsammelvorrichtung (18) führt,
    wobei das Luftauswurfteil (49) eine Luftauswurfdüse (49) ist, die Druckluft zur Innenseite des Führungsrohrs (48) bläst.
  3. Die Garnwickelmaschine nach Anspruch 1, die ferner ein Ablenkführungselement (60) aufweist, das ein Garn (20), das von dem Garnabzieh-Auswurfteil (48) weggeblasen wird, zu dem Garnfangteil (13) führt.
  4. Die Garnwickelmaschine nach Anspruch 3, wobei das Ablenkführungselement (60) ein rohrartiges Element ist, in dem entlang einer Längsrichtung eines Rohrs ein Schlitz (63) ausgebildet ist.
  5. Die Garnwickelmaschine nach Anspruch 4, dadurch gekennzeichnet, dass das Ablenkführungselement (60) an einer Position vorgesehen ist, die von einem Laufweg abweicht, durch den ein Garn (20) während des Garnwickelns läuft.
  6. Die Garnwickelmaschine nach Anspruch 1, gekennzeichnet durch ein Antriebsteil (47), das konfiguriert ist, um das zweite Garnfangteil (15) in Richtung zu und weg von dem Garn(20)-Laufweg anzutreiben.
  7. Die Garnwickelmaschine nach Anspruch 6, die ein Steuerteil (25) aufweist, das den Betrieb des Antriebteils (47) steuert, dadurch gekennzeichnet, dass
    während des normalen Aufwickelns, das Steuerteil (25) das zweite Garnfangteil (15) in die Nähe des Garn(20)-Laufwegs bringt, und während des Garnverbindens, das Steuerteil (25) das zweite Garnfangteil (15) in Richtung von dem Garn(20)-Laufweg weg antreibt, in einem Zustand, wo das Garn (20) von dem zweiten Garnfangteil (15) aufgefangen wird, um hierdurch das aufgefangene Garn (20) in die Garnverbindungsvorrichtung (14) einzuführen.
  8. Die Garnwickelmaschine nach Anspruch 7, die ein Steuerteil (25) aufweist, das die Garnverbindungsvorrichtung (14), das Garnabzieh-Auswurfteil (48) und das untere Garnhochblasteil (11) steuert, dadurch gekennzeichnet, dass
    wenn eine neue Garnzufuhrspule (21) dem Spulenträgerteil (7) zugeführt wird, das Steuerteil (25) veranlasst, das Garnhochblasteil (11) abzusenken, um ein Garn (20) einer neuen Garnzufuhrspule (21) wegzublasen, veranlasst, dass das zweite Garnfangteil (15) das so abgeblasene Garn (20) auffängt, und das zweite Garnfangteil (15) in Richtung von dem Garn(20)-Laufweg weg antreibt,
    wobei, zu oder im Bereich dieser Zeit, das Steuerteil (25) veranlasst, das Garnabzieh-Auswurfteil (48) ein auf der Garnsammelvorrichtung (18) gesammeltes Garn (20) abzieht und das Garn (20) wegbläst und veranlasst, dass das Garnfangteil (13) das so weggeblasene Garn (20) auffängt,
    und dann das Steuerteil (25) die Garnverbindungsvorrichtung (14) aktiviert, um das Garnverbinden durchzuführen.
  9. Die Garnwickelmaschine nach Anspruch 7, welche aufweist:
    eine Garnfehlerdetektionsvorrichtung (17); und
    ein Messer (16), das konfiguriert ist, um an einer Position an einer stromabwärtigen Seite des zweiten Garnfangteils (15), ein Garn (20) zwischen der Garnzufuhrspule (21) und der Garnsammelvorrichtung (18) zu schneiden,
    dadurch gekennzeichnet, dass, wenn die Garnfehlerdetektionsvorrichtung (17) einen Garnfehler detektiert,
    das Steuerteil (25) das Messer (16) aktiviert, um das Garn (20) zu schneiden, veranlasst, dass das zweite Garnfangteil (15) ein Garn (20) der Garnzufuhrspulen(20)-Seite fängt, und das zweite Garnfangteil (15) in Richtung von dem Garn(20)-Laufweg weg antreibt,
    wobei zu oder im Bereich dieser Zeit das Steuerteil (25) veranlasst, dass das Garnabzieh-Auswurfteil (48) ein auf der Garnsammelvorrichtung (18) gesammeltes Garn (20) abzieht und das Garn (20) wegbläst, und veranlasst, dass das Garnfangteil (13) das so weggeblasene Garn (20) auffängt, und
    dann das Steuerteil (25) die Garnverbindungvorrichtung (18) aktiviert, um das Garnverbinden durchzuführen.
EP11806438.5A 2010-07-15 2011-06-24 Spulenwickelvorrichtung Active EP2594516B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2010160968A JP5471923B2 (ja) 2010-07-15 2010-07-15 糸巻取装置
PCT/JP2011/003621 WO2012008101A1 (ja) 2010-07-15 2011-06-24 糸巻取装置

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EP2594516A4 EP2594516A4 (de) 2014-07-16
EP2594516B1 true EP2594516B1 (de) 2016-08-24

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US8384294B2 (en) 2010-10-05 2013-02-26 Electronic Theatre Controls, Inc. System and method for color creation and matching
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
JP2016047764A (ja) * 2014-08-28 2016-04-07 村田機械株式会社 糸巻取装置及び糸巻取機
JP2017081654A (ja) 2015-10-22 2017-05-18 村田機械株式会社 糸巻取装置
JP2018177418A (ja) * 2017-04-07 2018-11-15 村田機械株式会社 ボビン処理装置
KR102269787B1 (ko) * 2017-09-15 2021-06-28 무라다기카이가부시끼가이샤 필라멘트 와인딩 장치 및 보빈 교환 방법
CN109837625B (zh) * 2017-11-28 2021-06-18 张家港扬子纺纱有限公司 一种倍捻机精密定长检测仪
CN108263910B (zh) * 2018-03-20 2023-08-29 吐鲁番溢达纺织有限公司 纱管留头装置和方法
CN111112129B (zh) * 2019-12-19 2021-09-07 青岛大学 一种疵纱纱管进入络筒工序前的简易剔除装置及方法
CN111188118B (zh) * 2020-03-13 2023-11-03 苏州极地纺织科技有限公司 一种储纬引线机构及方法
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JP2024055547A (ja) * 2022-10-07 2024-04-18 村田機械株式会社 糸巻取装置

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Publication number Publication date
EP2594516A1 (de) 2013-05-22
WO2012008101A1 (ja) 2012-01-19
JP5471923B2 (ja) 2014-04-16
CN103003176B (zh) 2014-04-09
EP2594516A4 (de) 2014-07-16
JP2012020852A (ja) 2012-02-02
CN103003176A (zh) 2013-03-27

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