EP2573017B1 - Garnwickeleinheit, Garnwickelvorrichtung und Spinnmaschine - Google Patents

Garnwickeleinheit, Garnwickelvorrichtung und Spinnmaschine Download PDF

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Publication number
EP2573017B1
EP2573017B1 EP12174300.9A EP12174300A EP2573017B1 EP 2573017 B1 EP2573017 B1 EP 2573017B1 EP 12174300 A EP12174300 A EP 12174300A EP 2573017 B1 EP2573017 B1 EP 2573017B1
Authority
EP
European Patent Office
Prior art keywords
yarn
spun
winding
pooling
spun yarn
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.)
Not-in-force
Application number
EP12174300.9A
Other languages
English (en)
French (fr)
Other versions
EP2573017A2 (de
EP2573017A3 (de
Inventor
Itaru Yokota
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
Original Assignee
Murata Machinery Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Murata Machinery Ltd filed Critical Murata Machinery Ltd
Publication of EP2573017A2 publication Critical patent/EP2573017A2/de
Publication of EP2573017A3 publication Critical patent/EP2573017A3/de
Application granted granted Critical
Publication of EP2573017B1 publication Critical patent/EP2573017B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B65H63/00—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package
    • B65H63/06—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to presence of irregularities in running material, e.g. for severing the material at irregularities ; Control of the correct working of the yarn cleaner
    • 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
    • B65H54/00—Winding, coiling, or depositing filamentary material
    • B65H54/70—Other constructional features of yarn-winding machines
    • B65H54/71—Arrangements for severing filamentary materials
    • 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
    • B65H69/06—Methods of, or devices for, interconnecting successive lengths of material; Knot-tying devices ;Control of the correct working of the interconnecting device by splicing
    • 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
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H1/00—Spinning or twisting machines in which the product is wound-up continuously
    • D01H1/11—Spinning by false-twisting
    • D01H1/115—Spinning by false-twisting using pneumatic means

Definitions

  • the present invention relates to a yarn winding unit that winds a spun yarn to form a package, a yarn winding apparatus and a spinning machine.
  • Patent Document 1 This type of yarn winding apparatus is disclosed in, for example, Japanese Patent Application Laid-open No. 2010-77576 (Patent Document 1).
  • the spinning machine disclosed in Patent Document 1 includes a plurality of spinning units.
  • Each of the spinning units includes a spinning device that supplies a spun yarn and a winding device that winds the spun yarn and forms a package.
  • a yarn slack eliminating device is arranged between the spinning device and the winding device.
  • the yarn slack eliminating device temporarily pools the spun yarn around a rotating roller called a slack eliminating roller.
  • EP 2 166 137 A1 describes a yarn winding unit as defined in the preamble of claim 1.
  • the spun yarn that is pooled in the yarn slack eliminating device can be of considerable length. Therefore, winding the entire spun yarn and again drawing the yarn up to the faulty yarn joint can take a long time.
  • the present invention overcomes the prior art problems.
  • a yarn winding apparatus includes a yarn supplying device, a winding device, a yarn joining device, a yarn pooling device, and a first cutting device.
  • the yarn supplying device is adapted to supply a spun yarn.
  • the winding device is adapted to wind the spun yarn onto a package.
  • the yarn joining device is adapted to join an end of the spun yarn on the yarn supplying device side and an end of the spun yarn on the winding device side at a position between the yarn supplying device and the winding device in a yarn running direction.
  • the yarn pooling device is adapted to temporarily pool the spun yarn at a position between the yarn supplying device and the yarn joining device in the yarn running direction.
  • the first cutting device is adapted to cut the spun yarn at a position between the yarn pooling device and the yarn joining device in the yarn running direction.
  • the yarn winding apparatus includes a monitoring device adapted to monitor the spun yarn joined by the yarn joining device at a position immediately downstream of the yarn joining device in the yarn running direction.
  • the first cutting device is adapted to cut the spun yarn based on a monitoring result obtained in the monitoring device.
  • the spun yarn can be immediately cut by the first cutting device, and the yarn joining operation can be redone by the yarn joining device. Consequently, the package can be wound more efficiently.
  • the yarn winding apparatus further includes a second cutting device and a removal device.
  • the second cutting device is adapted to cut the spun yarn supplied from the yarn supplying device to the yarn pooling device.
  • the removal device is adapted to remove the spun yarn pooled in the yarn pooling device.
  • the yarn winding apparatus includes a detecting section adapted to detect whether the spun yarn is removed from the yarn pooling device.
  • the yarn joining device is adapted to perform joining of the spun yarn when the detecting section detects that the spun yarn has been removed.
  • the unnecessary spun yarn pooled in the yarn pooling device is prevented from getting in the way when the yarn joining device is performing the yarn joining operation. Consequently, failure of the yarn joining operation and a drop in the quality of the package can be prevented.
  • the yarn supplying device be a spinning device that is adapted to use airflow to form the spun yarn from a fiber bundle.
  • a yarn winding unit includes a yarn supplying device, a winding device, a yarn joining device, a yarn pooling device, and a first cutting device.
  • the yarn supplying device is adapted to supply the spun yarn.
  • the winding device is adapted to wind the spun yarn onto the package.
  • the yarn joining device is arranged at a position between the yarn supplying device and the winding device in the yarn running direction and adapted to join the end of the spun yarn on the yarn supplying device side and the end of the spun yarn on the winding device side.
  • the yarn pooling device is arranged at a position between the yarn supplying device and the yarn joining device in the yarn running direction and adapted to temporarily pool the spun yarn.
  • the first cutting device is arranged at a position between the yarn pooling device and the yarn joining device in the yarn running direction and adapted to cut the spun yarn.
  • the yarn winding unit further includes a second cutting device and a removal device.
  • the second cutting device is adapted to cut the spun yarn supplied from the yarn supplying device to the yarn pooling device.
  • the removal device is adapted to remove the spun yarn pooled in the yarn pooling device.
  • the spun yarn at the downstream of the yarn pooling device is cut by the first cutting device and the spun yarn at the upstream of the yarn pooling device is cut by the second cutting device. Consequently, the spun yarn pooled in the yarn pooling device can be removed easily by the removal device.
  • the spun yarn can be removed definitively and in a short time.
  • the yarn winding unit includes a detecting section adapted to detect whether the spun yarn is removed from the yarn pooling device.
  • the yarn joining device is adapted to perform joining of the spun yarn when the detecting section detects that the spun yarn has been removed.
  • the unnecessary spun yarn pooled in the yarn pooling device is prevented from getting in the way when the yarn joining device is performing the yarn joining operation. Consequently, failure of the yarn joining operation and a drop in the quality of the package can be prevented.
  • the yarn supplying device be a spinning device that is adapted to use airflow to form the spun yarn from the fiber bundle.
  • the spun yarn pooled in the yarn pooling device tends to be fairly long. Therefore, in the yarn winding unit of this kind, it is preferable that the spun yarn be cut between the yarn pooling device and the yarn joining device.
  • the yarn winding apparatus includes a plurality of the yarn winding units.
  • a spinning machine 1 as an example of a yarn winding apparatus shown in FIG. 1 includes a plurality of spinning units (yarn winding units) 2 arranged in a line, a yarn joining carrier (carrier) 3, a blower box 80, and a motor box 5.
  • each of the spinning units 2 includes, arranged from upstream to downstream, a drafting device 7, a spinning device (yarn supplying device) 9, a yarn pooling device 12, and a winding device 13.
  • the terms "upstream” and “downstream” used in this specification are upstream and downstream, respectively, with respect to a running direction of a fiber bundle 8 and a spun yarn 10 during spinning.
  • the spinning device 9 spins the fiber bundle 8 fed from the drafting device 7 to form the spun yarn 10, and the winding device 13 winds the spun yarn 10 to form a package 45.
  • the drafting device 7 is arranged near an upper end of a frame 6 of the spinning machine 1.
  • the drafting device 7 includes, sequentially from the upstream side, four drafting rollers, namely, a back roller 16, a third roller 17, a middle roller 19 with an apron belt 18 made of rubber stretched over it, and a front roller 20.
  • Each of the drafting rollers is driven to rotate at a predetermined speed.
  • the drafting device 7 includes one roller each arranged opposing each of the drafting rollers.
  • a sliver 15, which serves as a raw material for the fiber bundle 8, is fed into the drafting device 7 from a not shown sliver case via a not shown sliver guide.
  • the drafting device 7 extends (drafts) the sliver 15 until a predetermined width is reached by feeding the sliver 15 sandwiched between the rotating drafting rollers and the opposing rollers to form the fiber bundle 8.
  • a spinning chamber 26 is formed between the nozzle block 35 and the hollow guide shaft 23.
  • An air blowing nozzle 27 that blows air into the spinning chamber 26 is formed in the nozzle block 35.
  • An introducing port 21 is formed in the fiber guiding section 22 for introducing the fiber bundle 8 into the spinning chamber 26.
  • the air blowing nozzle 27 blows air into the spinning chamber 26 and produces the swirling airflow.
  • the fiber bundle 8 that is fed from the drafting device 7 is guided into the spinning chamber 26 by the fiber guiding section 22 that includes the introducing port 21. Inside the spinning chamber 26, the fiber bundle 8 is swung around the hollow guide shaft 23 by the swirling airflow, and is twisted into a spun yarn 10. The twisted spun yarn 10 passes through a yarn path formed in the center of the hollow guide shaft 23, and is delivered outside of the spinning device 9 through a not shown yarn outlet at the downstream side.
  • a guiding needle 22a with a tip thereof pointing inside the spinning chamber 26 is arranged in the introducing port 21.
  • the fiber bundle 8 that is guided through the introducing port 21 is guided into the spinning chamber 26 via the guiding needle 22a.
  • the guiding needle 22a need not be provided if the downstream end of the fiber guiding section 22 is able to perform the function of the guiding needle 22a.
  • the yarn joining carrier 3 includes a yarn joining device 43, suction devices (a suction pipe 44 and a suction mouth 46), a yarn-joint quality monitor 47, a cutter 55, and a reverse driving mechanism 49.
  • the reverse driving mechanism 49 includes a supporting arm 91 extendable from the yarn joining carrier 3 towards the winding device 13 or retractable, and a reverse roller 92 that is supported at the end of the supporting arm 91.
  • the yarn joining carrier 3 travels on a rail 41 to and stops at the concerned spinning unit 2.
  • the suction pipe 44 while turning upward and downward about an axis, holds by suction an end of the yarn coming out of the spinning device 9, and guides the end to the yarn joining device 43.
  • the suction mouth 46 while turning upward and downward about an axis, holds by suction an end of the yarn from the package 45 that is supported by the winding device 13, and guides the end of the yarn to the yarn joining device 43.
  • the cradle arm 71 is turned by a not shown driving mechanism so that the winding drum 72 and the package 45 are separated.
  • the reverse driving mechanism 49 causes the reverse roller 92 to come into contact with the outer peripheral surface of the package 45 by causing the supporting arm 91 to extend toward the winding device 13.
  • the reverse roller 92 is driven by a not shown motor, thereby causing the package 45 to rotate in a direction of unspooling the spun yarn 10.
  • a time period for which the reverse roller 92 is driven is set such that, if the spun yarn 10 includes a portion that needs to be removed, a length of the spun yarn 10 sufficient enough to include that portion can be drawn into the suction mouth 46.
  • the yarn joining device 43 joins the two ends of the yarn that are guided therein in this manner.
  • the yarn-joint quality monitor (monitoring device) 47 that monitors the quality of the spun yarn 10 that is joined by the yarn joining device 43 is arranged immediately downstream of the yarn joining device 43.
  • the quality of the yarn joining performed by the yarn joining device 43 is not always satisfactory.
  • the yarn joining device 43 used in the present embodiment is of the type in which the yarn ends are untwisted before they are twisted and joined by the swirling airflow. Therefore, for example, the extent of untwisting of the end of the yarn, etc., can affect the quality of the yarn joint.
  • the quality of the yarn joint is detected by the yarn-joint quality monitor 47, and if the quality does not satisfy a certain standard, the yarn joining device 43 performs the yarn joining operation again.
  • the yarn-joint quality monitor 47 monitors a thickness of the spun yarn 10 that includes a portion where yarn-joining has been performed by the yarn joining device 43 by using a not shown optical sensor or electrostatic capacitance sensor. If any abnormality is detected in the thickness of the spun yarn 10, the yarn-joint quality monitor 47 sends a fault signal to a not shown unit controller.
  • the cutter 55 is arranged immediately upstream of the yarn joining device 43.
  • the unit controller controls the cutter 55 to immediately cut the spun yarn 10 so that the yarn joining operation can be redone. How the yarn joining operation is redone is explained in detail later.
  • the yarn pooling device 12 is arranged between the spinning device 9 and the winding device 13. As shown in FIG. 2 , the yarn pooling device 12 includes a yarn pooling roller (pooling roller) 14 and an electric motor (driving section) 25 that drives the yarn pooling roller 14 to rotate.
  • the yarn pooling roller 14 temporarily pools the spun yarn 10 by winding a specific quantity of the spun yarn 10 on an outer peripheral surface thereof. By causing the yarn pooling roller 14 to rotate at a predetermined rotation speed with the spun yarn 10 wound on the outer peripheral surface thereof, the spun yarn 10 can be drawn from the spinning device 9 and conveyed downstream at a predetermined speed. By temporarily pooling the spun yarn 10 on the outer peripheral surface of the yarn pooling roller 14, the yarn pooling device 12 functions as a kind of buffer between the spinning device 9 and the winding device 13. Accordingly, any problem (such as, a slack in the spun yarn 10) that arises due to a mismatch in a spinning speed of the spinning device 9 and a winding speed of the winding device 13 due to whatever reason can be resolved.
  • the electric motor 25 normally rotates the yarn pooling roller 14 in a direction of spooling the spun yarn 10 on the yarn pooling roller 14, but can also rotate the yarn pooling roller 14 in the opposite direction, that is, in the direction of unspooling the spun yarn 10 from the yarn pooling roller 14.
  • the yarn pooling device 12 includes a yarn detecting sensor (detecting section) 86 and a yarn sucking device (suction section) 87 that are arranged opposing the yarn pooling roller 14.
  • the yarn detecting sensor 86 is a non-contact type optical sensor and is electrically connected to the unit controller.
  • the yarn detecting sensor 86 detects whether the spun yarn 10 has been currently wound on the outer peripheral surface of the yarn pooling roller 14, and transmits a detection signal representing the detection result to the unit controller.
  • the yarn sucking device 87 includes a suction pipe that is connected to a not shown blower arranged in the blower box 80.
  • the opening of the suction pipe is located near the outer peripheral surface of the yarn pooling roller 14.
  • the opening of the suction pipe is located facing near an upstream end of the yarn pooling roller 14.
  • the yarn sucking device 87 creates a suction flow at the opening of the suction pipe and thereby is able to suck in and remove the spun yarn 10.
  • a yarn removal device (removal device) 88 that removes the spun yarn 10 pooled in the yarn pooling device 12 includes the electric motor 25 that drives the yarn pooling roller 14 in the direction of unspooling the spun yarn 10 from the yarn pooling roller 14, and the yarn sucking device 87.
  • a yarn-quality measuring equipment 59 is arranged between the spinning device 9 and the yarn pooling device 12.
  • the spun yarn 10 spun by the spinning device 9 passes through the yarn-quality measuring equipment 59 before being wound in the yarn pooling device 12.
  • the yarn-quality measuring equipment 59 has a structure that is similar to that of the yarn-joint quality monitor 47, and monitors the thickness of the running spun yarn 10 by using a not shown optical sensor or electrostatic capacitance sensor. Upon detection of a yarn defect (portion of the spun yarn 10 having abnormal thickness or the like) in the spun yarn 10, the yarn-quality measuring equipment 59 transmits a yarn defect detection signal to the not shown unit controller. The yarn-quality measuring equipment 59 can also detect the presence or absence of a foreign matter in the spun yarn 10 as the yarn defect.
  • the unit controller controls the air blowing nozzle 27 to stop the blow of air.
  • the spinning of the spun yarn 10 in the spinning device 9 is stopped. Consequently, the strength of the spun yarn 10 at the position of the spinning device 9 decreases, and the spun yarn 10 is cut at this position by tearing off.
  • the air blowing nozzle 27 arranged in the spinning device 9 on the one hand spins the fiber bundle 8 to form the spun yarn 10 while on the other hand plays the role of cutting the spun yarn 10.
  • the unit controller also stops the drafting by the drafting device 7.
  • FIG. 4 shows the cut spun yarn 10 in the state of being wound onto the package 45.
  • the spun yarn 10 wound onto the package 45 includes the abnormal portion detected by the yarn-quality measuring equipment 59.
  • the unit controller stops the winding operation of the winding device 13.
  • the cradle arm 71 is made to slant as shown in FIG. 4 by a not shown cylinder, and the package 45 separates from the winding drum 72 that is always rotating.
  • a not shown brake mechanism arranged in the winding device 13 acts on the package 45 so that the package 45 is brought to a complete stop after a certain degree of inertial rotation.
  • the unit controller When the yarn joining carrier 3 stops at the intended spinning unit 2, the unit controller causes the drafting device 7 to restart and the spinning by the spinning device 9 to be resumed.
  • the unit controller sends the control signal to the yarn joining carrier 3, and the yarn joining carrier 3 causes the suction pipe 44 and the suction mouth 46 to turn, as shown in FIG. 5 , to hold by suction the yarn end on the spinning device 9 side and the yarn end on the package 45 side, respectively.
  • the yarn joining carrier 3 causes the supporting arm 91 of the reverse driving mechanism 49 to extend to the winding device 13 side, causing the reverse roller 92 to come into contact with the package 45, and drives the reverse roller 92 to rotate in this state to rotate the package 45 in the reverse direction.
  • a length of the spun yarn 10 on the package 45 side sufficient enough to include the abnormal portion wound onto the package 45 is drawn into the suction mouth 46 by suction.
  • the yarn joining carrier 3 causes the suction pipe 44 and the suction mouth 46 to turn in the opposite direction to guide the held yarn ends to the yarn joining device 43, where yarn-joining is carried out.
  • the cradle arm 71 that is slanting is returned to its original position, and as shown in FIG. 7 , the package 45 comes into contact with the winding drum 72, and the winding of the spun yarn 10 onto the package 45 resumes.
  • the yarn path is guided by a not shown lever-like movable guide member, or suchlike, so that the spun yarn 10 passes through the yarn-joint quality monitor 47 and the cutter 55 immediately after the winding is resumed. Accordingly, the yarn joint formed by the yarn joining operation performed recently passes through the yarn-joint quality monitor 47 and the quality of the joint is monitored.
  • the yarn-joint quality monitor 47 monitors the thickness of the running spun yarn 10. If a preset condition is satisfied, for example, that the thickness, etc., of the spun yarn 10 is greater than a standard value, the yarn-joint quality monitor 47 transmits the fault signal to the unit controller. In case the winding of the spun yarn 10 onto the package 45 proceeds to some extent and still the unit controller does not receive the fault signal, it signifies that the yarn joining performed by the yarn joining device 43 has been good. In this case, the unit controller controls the guiding member to cancel guiding of the yarn path so that the spun yarn 10 is not guided to pass through the yarn-joint quality monitor 47 and the cutter 55. In this manner, the spinning unit 2 returns to the normal state shown in FIG. 2 , and continues to wind the spun yarn 10 onto the package 45.
  • the yarn-joint quality monitor 47 detects a faulty yarn joint in the state shown in FIG. 7 , and sends the fault signal to the unit controller is explained below.
  • the unit controller Upon receiving the fault signal, the unit controller causes the cutter 55 to immediately cut the spun yarn 10, and similar to the case in which an abnormality is detected by the yarn-quality measuring equipment 59, cuts the spun yarn 10 by stopping the air blowing nozzle 27 from blowing air, and stops the drafting device 7.
  • FIG. 8 shows the spun yarn 10 that is cut at two places by the control exerted by the unit controller.
  • the unit controller stops the winding in the winding device 13 and rotates the yarn pooling roller 14 in the yarn pooling device 12 in a direction opposite to the normal direction. Consequently, as shown in FIG. 9 , the spun yarn 10 wound on the yarn pooling roller 14 is sequentially unspooled, sucked in and removed by the yarn sucking device 87. The reverse rotation of the yarn pooling roller 14 continues until all the spun yarn 10 that was pooled is removed and the yarn detection sensor 86 arranged near the yarn pooling roller 14 can no longer detect the spun yarn 10.
  • the unit controller causes the operations of the drafting device 7 and the spinning device 9 to be resumed, and the yarn joining carrier 3 causes the suction pipe 44 and the suction mouth 46 to turn to hold by suction the yarn end on the spinning device 9 side and the yarn end on the package 45 side, respectively.
  • the yarn joining carrier 3 rotates the package 45 in the reverse direction by driving the reverse roller 92 of the reverse driving mechanism 49.
  • the unit controller causes the yarn joining device 43 to perform the yarn joining operation, and causes the winding of the spun yarn 10 to be resumed while the yarn joint is being monitored by the yarn-joint quality monitor 47.
  • the spun yarn 10 that is pooled in the yarn pooling device 12 between the two places where the spun yarn 10 is cut can be quickly removed by the fast reverse rotation of the yarn pooling roller 14.
  • the process can swiftly proceed to the yarn joining operation by the yarn joining device 43, and the time required for redoing the yarn joining operation can be effectively reduced.
  • the spinning machine 1 includes the spinning device 9, the winding device 13, the yarn joining device 43, the yarn pooling device 12, and the cutter 55.
  • the spinning device 9 supplies the spun yarn 10.
  • the winding device 13 winds the spun yarn 10 onto the package 45.
  • the yarn joining device 43 joins the yarn end of the spun yarn 10 on the spinning device 9 side and the yarn end of the spun yarn 10 on the winding device 13 side at a position between the spinning device 9 and the winding device 13 in the yarn running direction.
  • the yarn pooling device 12 temporarily pools the spun yarn 10 at a position between the spinning device 9 and the yarn joining device 43 in the yarn running direction.
  • the cutter 55 cuts the spun yarn 10 at a position between the yarn pooling device 12 and the yarn joining device 43 in the yarn running direction.
  • the length of the spun yarn 10 that is wound by the winding device 13 can be made short. Consequently, the length of the spun yarn 10 that needs to be drawn from the package 45 for the yarn joining operation by the yarn joining device 43 is also made short, and the yarn joining operation can be performed efficiently.
  • the yarn-joint quality monitor 47 that detects any abnormality in the spun yarn 10 by monitoring the spun yarn 10 that is joined by the yarn joining device 43 is arranged immediately downstream of the yarn joining device 43 in the yarn running direction.
  • the cutter 55 cuts the spun yarn 10 when an abnormality is detected in the spun yarn 10 by the yarn-joint quality monitor 47.
  • the spun yarn 10 can be immediately cut by the cutter 55, and the yarn joining operation can be redone by the yarn joining device 43. Consequently, the package 45 can be wound more efficiently.
  • the spinning machine 1 further includes the air blowing nozzle 27 and the yarn removal device 88.
  • the air blowing nozzle 27 cuts the spun yarn 10 that is supplied from the spinning device 9 to the yarn pooling device 12 by stopping air blowing therefrom.
  • the yarn removal device 88 removes the spun yarn 10 pooled in the yarn pooling device 12.
  • the spun yarn 10 at the downstream of the yarn pooling device 12 is cut by the cutter 55 and the spun yarn 10 at the upstream of the yarn pooling device 12 is cut by the air blowing nozzle 27. Consequently, the spun yarn 10 pooled in the yarn pooling device 12 can be removed easily by the yarn removal device 88.
  • the yarn pooling device 12 includes the yarn pooling roller 14 for pooling the spun yarn 10 by winding the spun yarn 10 on the outer peripheral surface thereof.
  • the yarn removal device 88 includes the yarn sucking device 87 and the electric motor 25.
  • the yarn sucking device 87 is arranged near the yarn pooling device 12 and sucks in the spun yarn 10 pooled in the yarn pooling device 12.
  • the electric motor 25 drives the yarn pooling device 12 in the direction that assists the suction of the spun yarn 10 by the yarn sucking device 87.
  • the spun yarn 10 can be removed definitively and in a short time.
  • the spinning machine 1 includes the yarn detecting sensor 86 that detects whether the spun yarn 10 has been removed from the yarn pooling device 12.
  • the yarn joining device 43 performs joining of the spun yarn 10 when the yarn detecting sensor 86 detects that the spun yarn 10 has been removed.
  • the unnecessary spun yarn 10 pooled in the yarn pooling device 12 is prevented from getting in the way when the yarn joining device 43 is performing the yarn joining operation. Consequently, failure of the yarn joining operation and a drop in the quality of the package 45 can be prevented.
  • the spinning device 9 used as the yarn supplying device forms the spun yarn 10 by spinning the fiber bundle 8 by using airflow.
  • the spun yarn 10 pooled in the yarn pooling device 12 tends to be fairly long in the spinning machine 1 in which the air-jet spinning device 9 is used as the yarn supplying device and the spun yarn 10 is formed continuously at high speed and pooled in the yarn pooling device 12 located downstream of the spinning device 9. Therefore, in the spinning machine 1 of this kind, it is preferable that the spun yarn 10 be cut between the yarn pooling device 12 and the yarn joining device 43.
  • the spinning machine 1 includes a plurality of the spinning units 2 arranged side-by-side and the yarn joining carrier 3.
  • Each of the spinning units 2 includes the spinning device 9, the winding device 13, and the yarn pooling device 12.
  • the yarn joining carrier 3 is movable to each of the spinning units 2, and includes the cutter 55 and the yarn joining device 43.
  • the yarn joining operation by the yarn joining device 43 can be performed efficiently, and thereby, the overall winding efficiency of the package 45 can be improved.
  • a second cutter can be arranged, for example, between the spinning device 9 and the yarn pooling device 12 for cutting the spun yarn 10.
  • the spinning device performs spinning by the air blowing nozzle 27 that produces airflow that swirls in one direction; however, the structure of the spinning device is not limited to this.
  • the spinning device can include a pair of nozzles that produce airflows in mutually opposite directions, and can thus twist the fiber bundle in opposite directions at the same time.
  • a pair of rollers constituting a yarn supplying device can be arranged at a position between the spinning device 9 and the yarn pooling device 12 in the yarn running direction.
  • the yarn pooling device in the present embodiment pools the spun yarn 10 by winding the spun yarn 10 on the outer peripheral surface of the yarn pooling roller 14; however, the structure of the yarn pooling device is not limited to this.
  • Various pooling methods can be used.
  • an elongated tube (slack tube) that sucks and pools the spun yarn inside can serve as a yarn pooling device.
  • the pooled spun yarn is further sucked and removed by the slack tube immediately after being cut by the cutter 55 and the air blowing nozzle 27.
  • the slack tube serves both as a yarn pooling device and a removal device.
  • the present invention is not limited to the spinning machine explained in the present embodiment but can be widely applied to yarn winding apparatuses that include a yarn joining device.
  • the present invention can be applied, for example, to an automatic winder that unspools a yarn from a yarn supplying bobbin, which is formed by winding the spun yarn, and winds the yarn to form a package.
  • the part where the yarn supplying bobbin is set corresponds to the yarn supplying device.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Quality & Reliability (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Filamentary Materials, Packages, And Safety Devices Therefor (AREA)
  • Forwarding And Storing Of Filamentary Material (AREA)

Claims (8)

  1. Eine Garnwickeleinheit, die folgende Merkmale aufweist:
    eine Garnzuführvorrichtung (9), die angepasst ist, um ein gesponnenes Garn (10) zuzuführen;
    eine Wickelvorrichtung (13), die angepasst ist, um das gesponnene Garn (10) auf einen Wickelkörper (45) zu wickeln;
    eine Garnaneinanderfügungsvorrichtung (43), die angepasst ist, um ein Ende des gesponnenen Garns (10) auf der Seite der Garnzuführvorrichtung (9) und ein Ende des gesponnenen Garns (10) auf der Seite der Wickelvorrichtung (13) an einer Position zwischen der Garnzuführvorrichtung (9) und der Wickelvorrichtung (13) in einer Garnlaufrichtung aneinanderzufügen;
    eine Garnsammelvorrichtung (12), die angepasst ist, um das gesponnene Garn (10) an einer Position zwischen der Garnzuführvorrichtung (9) und der Garnaneinanderfügungsvorrichtung (43) in der Garnlaufrichtung zu sammeln; und
    eine Überwachungsvorrichtung (47), die angepasst ist, um das gesponnene Garn (10), das durch die Garnaneinanderfügungsvorrichtung (43) aneinandergefügt wird, an einer Position unmittelbar nach der Garnaneinanderfügungsvorrichtung (43) in der Garnlaufrichtung zu überwachen;
    gekennzeichnet durch:
    eine erste Abschneidevorrichtung (55), die angepasst ist, um das gesponnene Garn (10) an einer Position zwischen der Garnsammelvorrichtung (12) und der Garnaneinanderfügungsvorrichtung (43) in der Garnlaufrichtung basierend auf einem Überwachungsergebnis, das in der Überwachungsvorrichtung (47) erhalten wird, abzuschneiden.
  2. Die Garnwickeleinheit gemäß Anspruch 1, die ferner folgende Merkmale aufweist:
    eine zweite Abschneidevorrichtung (27), die angepasst ist, um das gesponnene Garn (10), das von der Garnzuführvorrichtung (9) zu der Garnsammelvorrichtung (12) zugeführt wird, abzuschneiden; und
    eine Entfernungsvorrichtung (88), die angepasst ist, um das gesponnene Garn (10), das in der Garnsammelvorrichtung (12) gesammelt wird, zu entfernen.
  3. Die Garnwickeleinheit gemäß Anspruch 2, bei der:
    die Garnsammelvorrichtung (12) eine Sammelrolle (14) aufweist, die angepasst ist, um das gesponnene Garn (10) durch Wickeln des gesponnenen Garns (10) auf eine Außenumfangsoberfläche derselben zu sammeln, und
    die Entfernungsvorrichtung (88) folgende Merkmale aufweist:
    einen Saugabschnitt (87), der nahe der Garnsammelvorrichtung (12) angeordnet und angepasst ist, um das gesponnene Garn (10), das in der Garnsammelvorrichtung (12) gesammelt wird, anzusaugen, und
    einen Antriebsabschnitt (25), der angepasst ist, um die Garnsammelvorrichtung (12) in einer Richtung anzutreiben, die ein Saugen des gesponnenen Garns (10) durch den Saugabschnitt (87) unterstützt.
  4. Die Garnwickeleinheit gemäß Anspruch 3, die ferner folgendes Merkmal aufweist:
    einen Erfassungsabschnitt (86), der angepasst ist, um zu erfassen, ob das gesponnene Garn (10) aus der Garnsammelvorrichtung (12) entfernt wurde,
    wobei die Garnaneinanderfügungsvorrichtung (43) angepasst ist, um das gesponnene Garn (10) aneinanderzufügen, wenn der Erfassungsabschnitt (86) erfasst, dass das gesponnene Garn (10) entfernt wurde.
  5. Die Garnwickeleinheit gemäß einem der Ansprüche 1 bis 4, bei der die Garnzuführvorrichtung (9) eine Spinnvorrichtung ist, die angepasst ist, um das gesponnene Garn (10) durch Spinnen eines Faserbündels (8) unter Verwendung eines Luftstroms zu bilden.
  6. Die Garnwickeleinheit gemäß einem der Ansprüche 1 bis 5, die ferner folgende Merkmale aufweist:
    eine Mehrzahl von Garnwickeleinheiten (2), die Seite an Seite angeordnet sind, wobei jede der Garnwickeleinheiten (2) zumindest die Garnzuführvorrichtung (9), die Wickelvorrichtung (13) und die Garnsammelvorrichtung (12) aufweist; und
    einen Träger (3), der angepasst ist, um sich zu den Garnwickeleinheiten (2) zu bewegen, und der die erste Abschneidevorrichtung (55) und/oder die Garnaneinanderfügungsvorrichtung (43) aufweist.
  7. Ein Garnwickelgerät mit zumindest einer Garnwickeleinheit (2) gemäß einem der Ansprüche 1 bis 6.
  8. Eine Spinnmaschine mit einem Garnwickelgerät gemäß Anspruch 7.
EP12174300.9A 2011-09-20 2012-06-29 Garnwickeleinheit, Garnwickelvorrichtung und Spinnmaschine Not-in-force EP2573017B1 (de)

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JP2015193451A (ja) 2014-03-31 2015-11-05 村田機械株式会社 糸貯留ローラ及び糸巻取機
JP2016013892A (ja) * 2014-07-02 2016-01-28 村田機械株式会社 糸巻取装置
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
CN106716126B (zh) * 2015-03-20 2019-12-27 乌斯特技术股份公司 具有纱线插入设备的纱线测试设备
JP2017001781A (ja) * 2015-06-05 2017-01-05 村田機械株式会社 糸巻取システム、自動ワインダ、精紡機及び糸巻取方法
JP2018002328A (ja) * 2016-06-27 2018-01-11 村田機械株式会社 繊維機械
CN107128528B (zh) * 2017-05-03 2019-01-08 王一辉 一种大型配电柜智能线辊自动分配捆扎绳线盘
CN107587255B (zh) * 2017-10-31 2019-03-12 泉州威廉针织科技研究院股份有限公司 一种针织圆纬机的纱线智能检测除疵装置及其方法
CN107829204B (zh) * 2017-11-24 2019-03-12 泉州威廉针织科技研究院股份有限公司 一种针织圆纬机的纱线检测除疵智能控制系统及控制方法
CN108190641A (zh) * 2018-01-26 2018-06-22 联亚智能科技（苏州）有限公司 一种橡胶部件自动缠绕机组
JP2021075812A (ja) * 2019-11-07 2021-05-20 村田機械株式会社 紡績機

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DE2553892C3 (de) * 1975-11-29 1979-10-04 Skf Kugellagerfabriken Gmbh, 8720 Schweinfurt Abzugsvorrichtung für eine Offenendspinnmaschine
EP1460015B1 (de) * 2003-03-17 2006-07-05 Murata Kikai Kabushiki Kaisha Spulmaschine für Faden
JP3952023B2 (ja) * 2004-02-06 2007-08-01 村田機械株式会社 繊維機械
JP2008105755A (ja) * 2006-10-23 2008-05-08 Murata Mach Ltd 電磁式テンサーを組み込んだ糸弛み取り装置
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JP2010077576A (ja) 2008-09-29 2010-04-08 Murata Machinery Ltd 紡績機

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EP2573017A2 (de) 2013-03-27
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EP2573017A3 (de) 2016-07-20
CN103010848A (zh) 2013-04-03

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