EP2377793B1 - Garnwickelvorrichtung und automatischer Wickler - Google Patents
Garnwickelvorrichtung und automatischer Wickler Download PDFInfo
- Publication number
- EP2377793B1 EP2377793B1 EP11174044A EP11174044A EP2377793B1 EP 2377793 B1 EP2377793 B1 EP 2377793B1 EP 11174044 A EP11174044 A EP 11174044A EP 11174044 A EP11174044 A EP 11174044A EP 2377793 B1 EP2377793 B1 EP 2377793B1
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- EP
- European Patent Office
- Prior art keywords
- yarn
- winding
- package
- section
- accumulator
- Prior art date
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- 238000004804 winding Methods 0.000 title claims description 168
- 238000009825 accumulation Methods 0.000 claims description 66
- 230000007547 defect Effects 0.000 claims description 55
- 230000007246 mechanism Effects 0.000 claims description 28
- 238000001514 detection method Methods 0.000 description 15
- 238000011144 upstream manufacturing Methods 0.000 description 14
- 238000012545 processing Methods 0.000 description 11
- 230000008859 change Effects 0.000 description 9
- 238000004519 manufacturing process Methods 0.000 description 5
- 230000009467 reduction Effects 0.000 description 5
- 230000001105 regulatory effect Effects 0.000 description 5
- 230000007935 neutral effect Effects 0.000 description 4
- 238000005520 cutting process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 230000002411 adverse Effects 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 238000004018 waxing Methods 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H51/00—Forwarding filamentary material
- B65H51/20—Devices for temporarily storing filamentary material during forwarding, e.g. for buffer storage
- B65H51/22—Reels or cages, e.g. cylindrical, with storing and forwarding surfaces provided by rollers or bars
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H59/00—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators
- B65H59/10—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators by devices acting on running material and not associated with supply or take-up devices
-
- 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
- B65H63/062—Electronic slub detector
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H67/00—Replacing or removing cores, receptacles, or completed packages at paying-out, winding, or depositing stations
- B65H67/08—Automatic end-finding and material-interconnecting arrangements
- B65H67/081—Automatic end-finding and material-interconnecting arrangements acting after interruption of the winding process, e.g. yarn breakage, yarn cut or package replacement
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2701/00—Handled material; Storage means
- B65H2701/30—Handled filamentary material
- B65H2701/31—Textiles threads or artificial strands of filaments
Definitions
- the present invention relates to a yarn winding device and an automatic winder, and specifically, to control of tension applied to a yarn being wound into a package.
- a yarn produced by a spinning machine or the like is wound around a yarn supplying bobbin, which is then conveyed to a yarn winding device.
- a yarn splicing device splices yarns from a plurality of yarn supplying bobbins conveyed to the yarn winding device, to generate a package of a predetermined length.
- Such a yarn winding device may include a tension control mechanism for applying an appropriate tension to the yarn being wound, to inhibit a possible change in winding tension.
- a yarn winding device as described above is disclosed in, for example, the Unexamined Japanese Patent Application Publication (Tokkai-Hei) No. 5-766 .
- a winding unit corresponding to the yarn winding device the Unexamined Japanese Patent Application Publication (Tokkai-Hei) No. 5-766 includes a gate type tension applying section disposed on a yarn path between a yarn supplying bobbin from which the yarn is unwound and a package into which the yarn is wound; the gate sensor includes a pair of comb-like members that engage with each other.
- a winding operation is suspended to allow the package to be reversely rotated.
- the winding speed needs to be increased from zero to a steady-state speed.
- the winding tension is likely to change.
- the yarn unwound from the yarn supplying bobbin may entangle with the bobbin to significantly change the tension.
- the tension change affects the winding tension of the package, leading to yarn breakage or degraded package quality.
- U.S. Patent No. 3314621 uses a brake to enable a given tension to be applied to the yarn being wound into the package.
- U.S. Patent No. 3314621 fails to disclose that the applied tension is flexibly changed depending on a package winding condition or yarn quality.
- An object of the present invention is to provide a yarn winding device that allows the winding tension of a package to be controllably maintained in a given condition from winding start to winding end of the package.
- An aspect of the present invention provides a yarn winding device that winds a yarn drawn out from a replaceable yarn supplying bobbin into a package.
- the yarn winding device includes a winding driving section, a yarn accumulating device, a yarn defect detecting section, a yarn splicing section, a first tension control mechanism, a second tension control mechanism, and a control section.
- the winding driving section rotates the package.
- the yarn accumulating device allows the yarn to be accumulated before the yarn is wound into the package, and allows the accumulated yarn to be drawn out to the yarn supplying bobbin side.
- the yarn defect detecting section detects a yarn defect.
- the yarn splicing section performs a yarn splicing operation.
- the first tension control mechanism is located between the yarn supplying bobbin and the yarn accumulating device.
- the second tension control mechanism is located between the yarn accumulating device and the package.
- the control section controls the first tension control mechanism and the second tension control mechanism.
- the yarn accumulating device interrupts the propagation of the tension change.
- the yarn can be continuously wound into the package with the winding tension maintained constant.
- the yarn splicing operation can be performed by drawing out the yarn from the yarn accumulating device to the yarn supplying bobbin side, while winding the yarn accumulated in the yarn accumulating device, into the package.
- the winding operation can be continuously performed without reversely rotating the package.
- waste yarn that generates during the yarn splicing can be prevented from being mixed in the package, and the package can be prevented from being formed into an improper winding shape.
- the first tension control mechanism allows an appropriate tension to be applied to the yarn before the yarn is accumulated in the yarn accumulating device.
- the second tension control mechanism allows an appropriate tension to be applied to the yarn before the yarn is wound into the package. Consequently, the winding tension can be controllably maintained constant throughout the winding operation, allowing possible yarn breakage to be effectively prevented.
- the yarn can be continuously wound into the package in a constant condition. Therefore, a high-quality package in the proper wound state can be formed.
- control section preferably allows the second tension control mechanism to adjust the tension applied to the yarn according to a winding speed of the package.
- the tension applied to the yarn is controllably reduced to allow the winding operation to be performed with the winding tension maintained constant.
- the yarn winding device further includes a yarn accumulation amount detecting mechanism for detecting amount of yarn accumulated in the yarn accumulating device.
- the control section changes the package winding speed according to the amount of yarn accumulated in the yarn accumulating device.
- the control section further allows the second tension control mechanism to adjust the tension applied to the yarn according to the changed winding speed.
- the second tension control mechanism applies the tension to the yarn according to the winding speed. Therefore, the amount of yarn accumulated in the yarn accumulating device can be adjusted while maintaing the constant winding tension.
- a further aspect of the present invention provides an automatic winder including a plurality of the above-described yarn winding devices.
- an automatic winder that can produce a high-quality package can be provided.
- Figure 1 is a front view showing a general configuration of a winding unit (yarn winding device) 10 provided in an automatic winder according to an embodiment of the present invention.
- the winding unit 10 shown in Figure 1 winds a yarn 20 unwound from a yarn supplying bobbin 21, around a yarn winding bobbin 22 while traversing the yarn 20.
- the winding unit 10 thus forms a package 30 with a predetermined length and a predetermined shape.
- the automatic winder according to the present embodiment includes a plurality of the winding units 10 arranged in a line, and a frame control device (not shown in the drawings) located at one of an arrangement of the winding units in an arrangement direction.
- Each of the winding units 10 includes unit frames (not shown in the drawings) provided on respective lateral sides of the unit as viewed from the front, and a winding unit main body 16 provided on a side of the unit frame.
- the winding unit main body 16 includes a winding section 5, a yarn accumulating section 6, a yarn defect detecting section 7, a yarn splicing section 8, and a yarn supplying section 9.
- the winding section 5 includes a cradle (not shown in the drawings) configured to be able to hold the yarn winding bobbin 22, a winding drum (traverse drum) 24 that traverses the yarn 20, while rotating the yarn winding bobbin 22, a winding driving section (drum driving motor) 53 that drives the winding drum 24, and a second tension applying section 42 described below.
- the cradle is configured to be swingable in a direction in which the cradle approaches or leaves the winding drum 24. Thus, the package comes into contact with or separates from the winding drum 24.
- a spiral traverse groove 27 is formed in an outer peripheral surface of the winding drum 24 to allow the yarn 20 to be traversed.
- the yarn accumulating section 6 includes an accumulator 61 in which the yarn 20 is accumulated before being wound into a package 30. Furthermore, the yarn defect detecting section 7 includes a clearer 15 that detects a yarn defect.
- the yarn splicing section 8 includes a splicer device (yarn splicing device) 14 that performs a yarn splicing operation, a lower yarn guide pipe (lower yarn catching portion) 25, and an upper yarn guide pipe (upper yarn catching section) 26.
- the yarn supplying section 9 includes a yarn supplying bobbin holding section 60 that holds the yarn supplying bobbin 21, a yarn unwinding assisting device 12, and a first tension applying section 41.
- the yarn supplying section 9 further includes a bobbin supply device (not shown in the drawings) that supplies a new yarn supplying bobbin 21 to a yarn supplying bobbin holding section 60.
- the bobbin supply device may be of a magazine type or a tray type.
- the yarn supplying section 9 discharges the empty bobbin held in the yarn supplying bobbin holding section 60.
- the bobbin supply device then sequentially supplies a new yarn supplying bobbin 21 to the yarn supplying bobbin holding section 60 for replacement.
- the yarn unwinding assisting device 12 lowers a regulating member 40 that covers a core tube of the yarn supplying bobbin 21, in conjunction with unwinding of the yarn from the yarn supplying bobbin 21.
- the yarn unwinding assisting device 12 thus assists in unwinding the yarn from the yarn supplying bobbin 21.
- the regulating member 40 comes into contact with a balloon formed above the yarn supplying bobbin 21 by the rotation and centrifugal force of the yarn unwound from the yarn supplying bobbin 21.
- the regulating member 40 thus applies an appropriate tension to the balloon to assist in unwinding the yarn 20.
- a sensor (not shown in the drawings) is provided in the vicinity of the regulating member 40 to detect a chase portion of the yarn supplying bobbin 21. When the sensor detects that the chaser potion has lowered, the regulating member 40 can then be lowered by, for example, an air cylinder (not shown in the drawings) in conjunction with the lowering of the chase portion.
- a yarn detection part (lower yarn detecting sensor) 37 that can determine whether or not the yarn 20 is present is provided in the vicinity of the yarn unwinding assisting device 12.
- the yarn detection part 37 is configured to be able to detect that the yarn 20 to be drawn out from the yarn supplying bobbin 21 is exhausted, to transmit a yarn absence detection signal to a unit control section 50.
- the first tension applying section 41 applies a predetermined tension to the traveling yarn 20.
- the first tension applying section 41 may be, for example, of a gate type including movable comb teeth arranged with respect fixed comb teeth.
- the movable comb teeth can be rotated pivotally by a rotary solenoid (not shown in the drawings) so as to be engaged with or released from the fixed teeth.
- the first tension applying section 41 allows a predetermined tension to be applied to the yarn 20 accumulated in the accumulator 61, described below, so that the yarn 20 is orderly wound and accumulated in the accumulator 61.
- the splicer device 14 splices a lower yarn located on the yarn supplying bobbin 21 side and an upper yarn located on the package 30 side.
- the splicer device 14 may be a mechanical type or may use a fluid such as compressed air.
- the clearer 15 is configured to monitor the thickness of the yarn 20 using an appropriate sensor, to detect a defect.
- a signal from the sensor of the clearer 15 is processed by an analyzer 52. Then, a yarn defect such as slab can be detected.
- the clearer 15 can also function as a sensor that detects the traveling speed of the yarn 20 or a sensor that simply determines whether or not the yarn 20 is present.
- a waxing device 17 is located on a downstream side of the clearer 15 to wax the traveling yarn 20.
- a suction section (not shown in the drawings) is provided on a downstream side of the waxing device 17. The suction section is connected to an appropriate negative pressure source to allow residues of the wax and waste yarns to be sucked and removed.
- the accumulator 61 is configured as a yarn accumulating device that can accumulate a predetermined amount of the yarn 20.
- the yarn 20 conveyed from the yarn supplying bobbin 21 is accumulated in the accumulator 61. Thereafter, the yarn 20 is drawn out from the accumulator 61 and wound into the package 30.
- the accumulator 61 is configured to be able to draw out the accumulated yarn 20 to both the upstream and downstream sides. In this configuration, while the accumulated yarn 20 is being wound into the package 30, the yarn 20 can concurrently be drawn out to the yarn supplying bobbin 21 side for a yarn splicing operation.
- the structure of the accumulator 61 and the operation of the accumulator 61 during the yarn splicing operation will be described below in detail.
- the second tension applying section 42 is located on a downstream side of the accumulator 61 to control tension generated when the yarn 20 is unwound from the accumulator 61.
- the yarn 20 drawn out from the accumulator 61 is subjected to the appropriate tension when wound around the yarn winding bobbin 22.
- the second tension applying section 42 may be of the gate type including the movable comb teeth arranged with respect to the fixed comb teeth.
- the lower yarn guide pipe (lower yarn catching portion) 25 which catches and guides the lower yarn, located on the yarn supplying bobbin 21 side, is provided below the splicer device 14.
- the upper yarn guide pipe (upper yarn catching section) 26 which catches and guides the upper yarn, located on the package 30 side, is provided above the splicer device 14.
- a lower yarn suction port 32 is formed at a tip of the lower yarn guide pipe 25.
- an upper yarn suction port 34 is formed at a tip of the upper yarn guide pipe 26.
- An appropriate negative pressure source is connected to each of the lower yarn guide pipe 25 and the upper yarn guide pipe 26 to allow a suction flow to act at the lower yarn suction port 32 and the upper yarn suction port 34, respectively.
- the yarn winding bobbin 22 is driven by rotationally driving the winding drum 24, located opposite the yarn winding bobbin 22.
- the winding drum 24 is coupled to an output shaft of the drum driving motor 53. Operation of the drum driving motor 53 is controlled by a motor control section 54.
- the motor control section 54 is configured to receive an operation signal from the unit control section 50 to controllably operate and stop the drum driving motor 53.
- FIG. 2 is a schematic sectional view showing a general configuration of the accumulator 61.
- the accumulator 61 includes a rotating shaft casing 70, an accumulation section 71, and a yarn guiding section 72.
- the rotating shaft casing 70 includes a cylindrical portion 78 the top of which is open and a flange section 79 formed at the open end of the cylindrical portion 78.
- the accumulation section 71 is located above the flange section 79.
- the accumulation section 71 includes a support plate 81 formed like a disk, a plurality of rod members projecting upward from the support plate 81, and a disk-like mounting plate 83 to which tip portions of the plurality of rod members 82 are connected. Furthermore, the accumulation section 71 is located to form a gap between the support plate 81 and the flange section 79.
- the accumulation section 71 is configured such that a winding cylinder 75 described below can rotate through the gap.
- the plurality of rod members 82 are arranged at equal intervals on a circumference that is orthogonal to a vertical direction.
- the accumulation section 71 is configured such that the rod members 82 form a generally cylindrical shape.
- the yarn 20 is wound around an outer peripheral portion of the generally cylindrical accumulation section 71, composed of the plurality of rod members 82, to accumulate the yarn 20 in the accumulation section 71.
- the yarn guiding section 72 is located inside the rotating shaft casing 70.
- An introduction hole 80 is formed at the bottom of the cylindrical portion 78 (the end of the cylindrical section 78 located opposite the accumulation section 71) so as to guide the yarn 20 drawn out from the yarn supplying bobbin 21, through the introduction hole 80 to the yarn guiding section 72.
- a rotating shaft 73 is located inside the cylindrical portion 78; the rotating shaft 73 is mounted in the cylindrical member 78 so as to be rotatable relative to the rotating shaft casing 70 and the accumulation section 71.
- a servo motor (yarn accumulation driving section) 55 is incorporated between the rotating shaft 73 and the cylindrical section 78. The servo motor 55 allows the rotating shaft 73 to be rotated forward and backward. Furthermore, a yarn passage 74 like an axial hole is formed in the center of the rotating shaft 73.
- a cylindrically formed winding cylinder (winding portion) 75 is fixed to one end of the rotating shaft 73 (the end of the rotating shaft 73 which is located opposite the introduction hole 80).
- the winding cylinder 75 is configured to extend in a radial direction so as to pass through the gap between the rotating shaft casing 70 (flange section 79) and the support plate 81 while inclining slightly upward, with a part of a tip portion of the winding cylinder 75 projecting slightly from the rotating shaft casing 70.
- the winding cylinder 75 is configured to rotate integrally with the rotating shaft 73. Furthermore, the interior of the winding cylinder 75 is connected to the yarn passage 74.
- the winding unit 10 includes a draw-out mechanism that draws out the yarn 20 accumulated on the accumulating section 71, to the upstream side.
- the draw-out mechanism includes the upper yarn guide pipe 26, the servo motor 55, and the unit control section 50, which controls the servo motor 55. The draw-out mechanism allows the yarn 20 to be smoothly drawn out.
- the yarn 20 guided through the introduction hole 80 in the yarn guiding section 72 into the rotating shaft casing 70 passed through the yarn passage 74 and the interior of the winding cylinder 75 and is then discharged from a tip of the winding cylinder 75.
- the yarn 20 is thus guided to a side surface portion of the accumulation section 71.
- the winding cylinder 75 rotates together with the rotating shaft 73 to wind the yarn 20 around the side surface portion.
- each of the plurality of rod members 82 arranged in the accumulation section 71 is located so as to incline toward the inside of the accumulation section 71 as the rod member 82 extends from the support plate 81-side end toward the mounting plate 83-side end.
- the yarn 20 is continuously wound by the winding cylinder 75, a portion of the yarn 20 which is wound around the inclining portion moves upward.
- the yarn 20 is spirally aligningly accumulated on the side surface portion composed of the rod members 82.
- the servo motor 55 is used as a yarn accumulation driving section.
- the quick stop of rotation of the winding cylinder 75, acceleration or deceleration thereof, or the like can be precisely performed.
- the winding unit 10 includes a first accumulation sensor 76 located on an upper portion of the accumulation section 71 and a second accumulation sensor 77 located on a lower portion of the accumulation section 71.
- Each of the two accumulation sensors (yarn accumulation amount detecting section) 76, 77 is composed of a non-contact type optical sensor or the like and electrically connected to the unit control section 50.
- the first accumulation sensor 76 is located on an upper end side of the accumulation section 71 so as to be able to detect a portion of the yarn 20 which is wound on the upper end side of the rod members 82, comprising the accumulation section 71.
- the first accumulation sensor 76 thus detects a maximum accumulation condition of the accumulator 61.
- the second accumulation sensor 77 is located on a downstream side of the accumulation section 71 so as to be able to detect a portion of the yarn 20 which is wound on the lower end side of the rod members 82.
- the second accumulation sensor 77 detects the shortage of yarn accumulation in the accumulator 61.
- the unit control section 50 controls the speed at which the yarn 20 is wound around the accumulation section 71. This enables the amount of yarn 20 accumulated in the accumulator 61 to be adjusted so that the amount is not excessive or insufficient.
- the speed at which the yarn 20 is wound around the accumulation section 71 of the accumulator 61 (in other words, the speed at which the yarn 20 is fed from the yarn supplying bobbin 21, located on the upstream side, to the accumulator 61) is controlled to be equal to or higher than the speed at which the yarn 20 is wound into the package 30 and which is sequentially increased. Then, when a predetermined time elapses from the beginning of the winding and an amount of the yarn 20 required for the yarn splicing operation is accumulated in the accumulator 61, the driving of the servo motor 55 is controlled such that the yarn 20 is wound around the accumulation section 71 at a speed equal to the yarn winding speed for the package 30.
- the amount of yarn accumulated in the accumulator 61 is maintained.
- the amount of yarn 20 required for the yarn splicing operation is the sum of the amount of yarn drawn out from the accumulator to the upstream side for the yarn splicing operation performed in the splicer device 14, described below, and the amount of yarn 20 drawn out from the accumulator 61 to the downstream side for the winding of the yarn 20 into the package 30, which is performed in parallel with the yarn splicing operation.
- the accumulation section 71 preferably always maintains a condition in which an amount of yarn 20 equal to or more than the required amount is accumulated.
- the yarn 20 unwound from the accumulation section 71 of the accumulator 61 is wound into the package 30, driven by the winding drum 24. At this time, tension applied to the yarn 20 by the second tension applying section 42 is controlled by the unit control section 50 according to the winding speed.
- the clearer 15 Upon detecting a yarn defect by monitoring the thickness of the yarn 20, the clearer 15 transmits a yarn defect detection signal to the unit control section 50. Based on the yarn defect detection signal, the unit control section 50 operates a cutter (yarn cutting means) provided below the clearer 15 to cut the yarn 20. At the same time, the unit control section 50 stops the servo motor 55 of the accumulator 61 to stop the rotation of the winding cylinder 75. Thus, the upper yarn is stopped below the introduction hole 80 in the accumulator 61.
- FIG. 3 is a front view showing that the upper yarn guide pipe 26 is in the catching position.
- the unit control section 50 pivotally moves the upper yarn guide pipe 26, around a shaft 35, to the catching position shown in Figure 3 .
- the upper yarn suction port 34 at the tip of the upper yarn guide pipe 26 lies opposite the yarn hanging down from the introduction hole 80 in the accumulator 61.
- the servo motor 55 is driven in the reverse direction so that a portion of the yarn 20 which contains a yarn defect is drawn out from the accumulator 61 and sucked into the upper yarn suction port 34, or a neutral condition is maintained until the yarn defect is sucked into the upper yarn suction port 34.
- the negative pressure source is connected to the upper yarn guide pipe 26.
- a suction flow generated in the vicinity of the upper yarn suction port 34 allows the upper yarn to be caught and guided to the splicer device 14.
- the lower yarn suction port 32 of the lower yarn guide pipe 25 catches the lower yarn at a position shown in Figure 1 .
- the lower yarn guide pipe 25 moves pivotally upward around the shaft 33 to guide the lower yarn to the splicer device 14.
- the guided upper and lower yarns are spliced by the splicer device 14, thus completing the yarn splicing operation.
- the yarn end of the upper yarn containing the yarn defect is cut by the cutter of the splicer device 14.
- the cut yarn end is then sucked and removed by the negative pressure source (not shown in the drawings) connected to the upper yarn guide pipe 26.
- the unit control section 50 drives the servo motor 55 forward again to rotate the winding cylinder 75 in a direction in which the yarn 20 is accumulated.
- the yarn splicing operation performed to allow the yarn supplying bobbin 21 to be replaced will be described.
- the yarn detection part 37 Upon detecting that the yarn 20 to be fed from the yarn supplying bobbin 21 is exhausted, the yarn detection part 37 transmits a yarn absence detection signal to the unit control section 50.
- the unit control section 50 stops the supply of the yarn 20 to the accumulator 61. At this time, timing for stopping the servo motor 55 is adjusted such that the yarn end is stopped at a predetermined position. This facilitates catching of the yarn 20.
- the yarn 20 can be inhibited from being wastefully used.
- the unit control section 50 pivotally moves the upper yarn guide pipe 26 to the catching position to suck and catch a portion of the yarn 20 which is located in the vicinity of an inlet of the accumulator 61.
- the upper yarn guide pipe 26 is pivotally moved downward to guide the upper yarn to the splicer device 14.
- the unit control section 50 allows the splicer device 14 to splice the upper and lower yarns.
- the unit controller 50 thereafter controls the servo motor 55 such that the winding cylinder 75 is rotated in the direction in which the yarn 20 is accumulated.
- the unit control section 50 stands by until receiving a signal indicating that a yarn defect has been detected, from the clearer 15 (S101). Upon receiving the yarn defect detection signal, the unit control section 50 immediately stops the forward rotation of the servo motor 55 (S102). The unit control section 50 then cuts the yarn 20 with the cutter (not shown in the drawings) (S103).
- the unit control section 50 reversely rotates the servo motor 55 by a predetermined number of times (S104). Subsequently, the unit control section 50 pivotally moves the upper yarn guide pipe 26 to the catching position shown by a solid line in Figure 3 , where the upper yarn guide pipe 26 comes to rest (S105). Then, the unit control section 50 allows a suction flow from the upper yarn suction port 34 to act on the upper yarn hanging down from the introduction hole 80 in the accumulator 61 to suck and catch the upper yarn (S106). Then, the unit control section 50 pivotally moves the upper yarn guide pipe 26 to a guide position located below (S107).
- the arrangement in which the servo motor 55 is reversely rotated the predetermined number of times may be changed to an arrangement in which the servo motor 55 is set to the neutral condition.
- the unit control section 50 checks the signal from the clearer 15 (S108). That is, in the present embodiment, when the upper yarn guide pipe 26 properly guides the upper yarn to the splicer device 14, the yarn path of the upper yarn simultaneously passes through the clearer 15. The clearer 15 thus senses the yarn 20. Consequently, when the clearer 15 senses the yarn 20, this means that the upper yarn has successfully been guided to the splicer device 14. Thus, the upper yarn guide pipe 26 is moved to the standby position, where the upper yarn guide pipe 26 does not interfere with the yarn winding operation (S109). Then, the control flow for the guidance of the upper yarn is completed.
- the unit control section 50 returns to the processing in S105, where the upper yarn guide pipe 26 attempts to catch the yarn end of the upper yarn again.
- the upper yarn can be caught within the specified range of the introduction hole 80 in the accumulator 61. Therefore, the yarn winding device according to the present embodiment is unlikely to fail to catch the upper yarn compared to the conventional art.
- the unit control section 50 may return to the processing in S104 instead of the processing in S105, where the servo motor 55 is additionally reversely rotated to draw out the yarn 20 further to the upstream side. Furthermore, in the processing in S106, the suction flow is allowed to act on the upper yarn, which is thus sucked and caught. However, the upper yarn may be caught by being gripped by a grip mechanism or the like.
- the upper yarn guided to the splicer device 14 is spliced to the lower yarn guided by the lower yarn guide pipe 25. Since the yarn splicing operation is performed in parallel with the operation of winding the yarn 20 into the package 30, the yarn defect can be removed without the need to stop or reversely rotate the winding drum 24.
- the servo motor 55 starts rotating forward to resume the supply of the yarn 20 to the accumulator 61.
- the speed at which the yarn 20 is supplied to the accumulation section 71 is controlled to be higher than the winding speed for the package 30.
- the unit control section 50 returns the speed at which the yarn 20 is supplied to the accumulator 61 to the original value, which is equal to the yarn winding speed for the package 30.
- the unit control section 50 stands by until receiving the yarn absence detection signal from the yarn detection part 37 (S201). Upon receiving the yarn absence detection signal, the unit control section 50 stops the forward rotation of the servo motor 55 to stop the supply of the yarn 20 to the accumulator 61 (S202). Then, the unit control section 50 pivotally moves the upper yarn guide pipe 26 to the catching position shown by the solid line in Figure 3 , where the upper yarn guide pipe 26 comes to rest (S203).
- the unit control section 50 allows the suction flow from the upper yarn suction port 34 to act on the yarn 20 drawn out from the accumulator 61, to suck and catch the upper yarn (S204).
- the unit control section 50 reversely rotates the servo motor 55 by a predetermined number of times (S205). Then, the unit control section 50 pivotally moves the upper yarn guide pipe 26 to the catching position, located below (S206).
- the clearer 15 fails to sense the yarn 20
- the unit control section 50 returns to the processing in S204, where the upper yarn guide pipe 26 attempts to catch the yarn end of the upper yarn again.
- the unit control section 50 moves the upper yarn guide pipe 26 to the standby position (S208) and then terminates the flow in Figure 5 .
- the arrangement in which the servo motor 55 is reversely rotated the predetermined number of times may be changed to the arrangement in which the servo motor 55 is set to the neutral condition.
- the unit control section 50 controllably stops the supply of the yarn 20 to the accumulator 61 (S201, S202 in Figure 5 ).
- the yarn end can be easily caught at a position upstream of the accumulator 61 and spliced to the yarn 20 on the new yarn supplying bobbin 21, with the winding of the yarn 20 into the package 30 continued on the downstream side.
- the yarn supplying bobbin 21 can be replaced with a new one without the need to stop or reversely rotate the winding drum 24.
- the servo motor 55 starts rotating forward to feed the yarn 20 from the new yarn supplying bobbin 21 to the accumulator 61.
- the winding unit 10 includes the winding drum 24, which winds the yarn 20 into the package 30 while traversing the yarn 20, the accumulator 61, which allows the yarn 20 to be accumulated before the yarn 20 is wound into the package 30, the yarn defect detecting section 7, which detects a yarn defect, the yarn splicing section 8, which performs the yarn splicing operation, the yarn supplying bobbin holding section 60, which holds the yarn supplying bobbin 21, and the draw-out mechanism, which draws out the yarn 20 accumulated in the accumulator 61, to the upstream side in the yarn traveling direction.
- This configuration enables the draw-out mechanism to draw out the yarn 20 from the accumulator 61 for the yarn splicing operation, while allowing the yarn winding operation to be continuously operated on the package 30 side.
- This enables a reduction in a possible loss of winding time resulting from suspension of the yarn winding operation for the package 30.
- the production efficiency for the package 30 can thus be improved.
- the yarn winding operation for the package 30 is not suspended, the adverse effect, on traversing, of variation in winding tension that may occur at the beginning of rotation of the package 30 can be minimized.
- This also enables a reduction in the amount of power consumed to accelerate the package 30 up to a winding speed used during the yarn winding operation. Energy can thus be saved.
- the winding unit 10 is configured as described below.
- the draw-out mechanism is composed of the upper yarn guide pipe 26, which catches and guides the upper yarn that is the package 30-side yarn, to the splicer device 14, the servo motor 55, provided in the accumulator 61, and the unit control section 50, which controls the servo motor 55.
- the unit control section 50 allows the upper yarn guide pipe 26 to draw out the yarn 20 from the accumulator 61 and to guide the yarn 20 to the splicer device 14. As shown in the above-described embodiment, the unit control section 50 allows the upper yarn guide pipe 26 to suck and catch the yarn 20 in the accumulator 61, while driving the servo motor 55 so that the yarn 20 is drawn out from the accumulator 61 to the upstream side in the yarn traveling direction.
- the winding unit 10 is configured as follows.
- the yarn supplying section 9 includes the yarn supplying bobbin holding section 60, which discharges the empty yarn supplying bobbin 21 and receives a new yarn supplying bobbin 21.
- the yarn splicer device 14 splices the yarn end on the new yarn supplying bobbin 21 received by the yarn supplying bobbin holding section 60 and the yarn end on the accumulator 61 side.
- This configuration allows the yarn supplying bobbin 21 to be replaced with new one without the need to stop the yarn winding operation.
- the package production efficiency can thus be further improved.
- the winding unit 10 includes the drum driving motor 53, the accumulator 61, the yarn defect detecting section 7, the splicer device 14, the upper yarn guide pipe 26, the lower yarn guide pipe 25, and the unit control section 50.
- the drum driving motor 53 is configured to rotate the package 30.
- the accumulator 61 allows the yarn 20 to be accumulated before the yarn 20 is wound into the package 30.
- the accumulated yarn 20 can be drawn out to the yarn supplying bobbin 21 side.
- the yarn defect detecting section 7 is configured to detect a yarn defect.
- the splicer device 14 is configured to perform the yarn splicing operation.
- the upper yarn guide pipe 26 catches and guides the yarn 20 located on the package 30 side, to the splicer device 14.
- the lower yarn guide pipe 25 catches and guides the yarn 20 located on the yarn supplying bobbin 21 side to the splicer device 14.
- the unit control section 50 controllably cuts a portion of the yarn 20 located on the upstream side of the detected yarn defect in the yarn winding direction, while simultaneously stopping the accumulation of the yarn 20 by the accumulator 61 so that the upper yarn stopped below the introduction hole 80 in the accumulator 61 is caught and guided to the splicer device 14 by the upper yarn guide pipe 26 for the yarn splicing operation.
- the yarn winding operation can be performed without the need to reverse or stop the package 30 so as to allow the package 30-side yarn 20 to be drawn out. This enables a reduction in a possible loss of winding time resulting from the suspension of the yarn winding operation for the package 30.
- the production efficiency for the package 30 can thus be improved.
- the upper yarn guide pipe 26 is configured to avoid directly sucking the surface of the package 30. Thus, when the package 30-side yarn 20 is caught, possible degradation of the quality of the package 30 such as a traversing error is prevented.
- the portion of the yarn 20 which is located on the upstream side of the yarn defect section in the yarn winding direction is drawn out from the accumulator 61 and cut for the yarn splicing operation.
- the yarn defect can be reliably removed.
- a sufficient amount of yarn 20 is accumulated on the downstream side.
- the yarn end can be easily caught at the position located upstream of the accumulator 61 and spliced to the yarn 20 from the new yarn supplying bobbin 21.
- the suction port at the tip of the upper yarn catching section needs to be formed to be elongate so as to allow the entire surface of the package to be sucked.
- the configuration according to the present embodiment has only to catch the yarn 20 hanging down from the introduction port 80 in the accumulator 61. This eliminates the need to configure the upper yarn suction port 34 to be wide enough to cover the entire winding width of the package 30 as is the case with the conventional suction mouth. Consequently, the upper yarn catching section (upper yarn guide pipe 26) can be compactly configured.
- the present invention enables a reduction in the suction range of the upper yarn suction port 34. This improves the rate at which the yarn 20 is successfully caught, enabling a further reduction in the cycle time of the yarn splicing operation. Moreover, since the present embodiment is configured to avoid catching the upper yarn on the surface of the package 30, a possible phenomenon (what is called "yarn stitching") is prevented in which while the upper yarn catching section is attempting to catch the yarn end, the yarn end falls from the surface of a yarn layer.
- the accumulator 61 includes the accumulation section 71, around which the yarn 20 is wound for accumulation, the winding cylinder 75, mounted in the accumulation section 71 so as to be rotatable relative to the accumulation section 71, and the servo motor 55, which rotates the winding cylinder 75 forward and backward.
- the unit control section 50 performs control such that the servo motor 55 is reversely rotated or set to the neutral condition.
- the servo motor 55 controls the speed at which the winding cylinder 75 rotates forward, to allow the amount of the accumulated yarn 20 to be easily adjusted. Furthermore, controlling the reverse rotation of the winding cylinder 75 allows the yarn 20 to be drawn out at the appropriate draw-out amount and at the appropriate timing. As a result, the yarn splicing operation can be more precisely performed, contributing to reliable removal of the yarn defect and prevention of the wasteful use of the yarn 20.
- the winding unit 10 is configured as follows.
- the accumulator 61 has the rotating shaft casing 70, which covers at least a part of the winding cylinder 75.
- the introduction hole 80 is formed in the rotating shaft casing 70 to introduce the yarn 20 drawn out from the yarn supplying bobbin 21, into the accumulator 61.
- the unit control section 50 controls the servo motor 55 so that the rotation of the winding cylinder 75 is stopped before the yarn end of the upper yarn is introduced into the introduction hole 80.
- the yarn 20 can be reliably guided into the accumulator 61. Furthermore, even if yarn breakage or cutting occurs, the upper yarn can be prevented from being wound around the accumulator 61. Additionally, the yarn end of the upper yarn can be stopped at the position where the yarn end can be easily caught. This allows the upper yarn guide pipe 26 to more reliably catch the yarn end.
- the winding unit 10 is configured as follows. That is, the winding unit 10 includes the first accumulation sensor 76 and the second accumulation sensor 77, which detect the amount of yarn 20 accumulated in the accumulator 61. Additionally, the unit control section 50 controls the servo motor 55 according to the yarn accumulation amount detected by the first accumulation sensor 76 and the second accumulation sensor 77.
- This arrangement allows the amount of yarn accumulated in the accumulator 61 to be adjusted to the appropriate value.
- a sufficient amount of yarn can be accumulated in the accumulator 61 with the winding speed for the package 30 maintained constant. For example, when only a small amount of yarn is accumulated in the accumulator 61, the rotation speed of the servo motor 55 is increased to allow the appropriate accumulation amount to be always ensured.
- the automatic winder according to the present embodiment includes a plurality of the winding units 10. This configuration provides the automatic winder that enables the yarn winding operation to be consecutively performed, thus improving package production efficiency.
- the winding unit 10 removes the yarn defect using a method including the following steps. That is, in a first step, the yarn 20 drawn out from the yarn supplying bobbin 21 is accumulated before being wound into the package 30. In a step, when a yarn defect is detected, the accumulated yarn 20 containing the yarn defect is drawn out to the upstream side in the yarn traveling direction. In a third step, the yarn 20 drawn out in the first step is guided to the splicer device 14. In a fourth step, the yarn supplying bobbin 21-side yarn is guided to the splicer device 14. In a fifth step, the yarn 20 guided in the third step is spliced to the yarn 20 guided in the fourth step.
- FIG. 6 is a flowchart showing how the accumulator and the pivotal movement of the upper yarn guide pipe 26 are controlled so as to adjust the amount of yarn accumulated in the accumulator 61 when the yarn defect is detected.
- the unit control section 50 stands by until receiving the signal indicating that a yarn defect has been detected, from the clearer 15 (S301). Upon receiving the yarn defect detection signal, the unit control section 50 checks whether or not a sufficient amount of yarn 20 is accumulated in the accumulator 61, based on detection values from the accumulation sensors 76, 77, corresponding to the yarn accumulation amount detecting section (S302). When a sufficient amount of yarn 20 is accumulated in the accumulator 61, the unit control section 50 quickly stops the forward rotation of the servo motor 55 and then reversely rotates the servo motor 55 by a predetermined number of times (S304). In the processing in S302, upon determining that a sufficient amount of yarn 20 is not accumulated in the accumulator 61, the unit control section 50 controllably reduces the rotation speed of the winding drum 24 (S303).
- the unit control section 50 then shifts to the processing in S304.
- the processing in subsequent steps S305 to S311 is similar to that in S103 to S109, described with reference to Figure 4 and will thus not be described.
- the automatic winder configured as shown in Figure 6 includes the first accumulation sensor 76 and the second accumulation sensor 77, which detect the amount of yarn 20 accumulated in the accumulator 61.
- the unit control section 50 controls the drum driving motor 53 according to the amount of yarn accumulated in the accumulator 61.
- This configuration allows the winding speed for the package 30 to be varied according to the amount of the accumulated yarn 20. For example, when only a small amount of yarn 20 is accumulated in the accumulator 61, the rotation speed of the drum driving motor 53 is reduced to set the amount of the yarn 20 accumulated in the accumulator 61 to be larger than that of the yarn 20 drawn out from the accumulator 61. Then, the appropriate accumulation amount can always be ensured. This enables prevention of a possible situation in which all of the yarn 20 accumulated is unwound while the winding section of the yarn accumulation driving section is stopped, for example, when a yarn defect is detected and needs to be removed or when the bobbin is replaced with a new one.
- the above-described embodiment may be additionally configured such that the rotation of the winding drum 24 is stopped when a given condition is met. For example, when the clearer 15 detects a yarn defect three consecutive times, the supplied yarn supplying bobbin 21 is determined to be defective, and the winding is thus stopped. Then, a new bobbin is supplied as a yarn supplying bobbin 21. Once a sufficient amount of yarn 20 is accumulated in the accumulator 61, the winding drum 24 is rotated to resume the winding.
- the configuration may be modified such that when the yarn detection part 37 senses that the yarn 20 on the yarn supplying bobbin 21 is exhausted, the unit control section 50 reduces the yarn supply speed instead of stopping the supply of the yarn 20 to the accumulator 61. That is, provided that the yarn end can be caught by the upper yarn guide pipe 26 before being completely drawn into the accumulator 61, the yarn 20 can be guided to the splicer device 14 for the yarn splicing operation even though the yarn is completely stopped.
- the yarn end can be easily caught at the position upstream of the accumulator 61 and spliced to the yarn 20 on the new yarn supplying bobbin 21, with the winding of the yarn 20 into the package 30 continued on the downstream side.
- the above-described embodiment may be additionally configured such that the winding speed for the package 30 is varied according to the amount of yarn 20 accumulated in the accumulator 61. For example, when only a small amount of yarn 20 is accumulated in the accumulator 61, the winding speed for the package 30 is reduced to adjustably prevent an excessive amount of yarn 20 from being drawn out from the accumulator 61. Then, the appropriate yarn accumulation amount can be ensured.
- the first tension applying section 41 and the second tension applying section 42 which control the tension, are of the gate type.
- the configuration of the tension control section may be appropriately changed; for example, disk type tensors may be used instead.
- the yarn 20 when a yarn defect is detected, the yarn 20 is cut immediately after being drawn out from the accumulator 61.
- this arrangement may be modified such that the yarn 20 is cut at any timing after the yarn defect portion has been drawn out from the accumulator 61.
- the two accumulation sensors 76, 77 are used to detect the amount of yarn 20 accumulated in the accumulator 61.
- the method of detecting the yarn amount may be appropriately changed; for example, at least three accumulation sensors may be used.
- the two accumulation sensors 76, 77 are used as the yarn accumulation detecting section to detect the yarn accumulation amount of the accumulator 61.
- the unit control section 50 then controls the winding driving section (drum driving motor) 53 according to the detected yarn accumulation amount.
- a monitor section monitoring the occurrence frequency of yarn defect removals may be provided as the yarn accumulation amount detecting section so that the drum driving motor 53 can be controlled based on the result of the monitoring.
- the monitor section may control the winding driving section 53 taking into account not only the yarn defect removal but also, for example, occurrence timings for the yarn supplying bobbin 21 replacing operation and the yarn defect removal.
- the winding driving section 53 rotates the package 30 via the winding drum 24.
- the winding driving section 53 may directly rotate the package 30.
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Quality & Reliability (AREA)
- Replacing, Conveying, And Pick-Finding For Filamentary Materials (AREA)
- Forwarding And Storing Of Filamentary Material (AREA)
- Tension Adjustment In Filamentary Materials (AREA)
Claims (4)
- Garnspulvorrichtung (10), die ein von einer auswechselbaren Garnzulieferspule (21) abgezogenes Garn zu einer Auflaufspule wickelt, welche Garnspulvorrichtung (10) enthält:einen Spulantriebsabschnitt (53), der die Auflaufspule (30) dreht,eine Garnsammeleinrichtung (61), die das Garn sammelt, bevor das Garn auf die Auflaufspule (30) aufgewickelt wird und die es ermöglicht, das angesammelte Garn zu der Seite der Gamzulieferspule (21) hin abzuziehen,einen Gamfehlererfassungsabschnitt (15), der einen Gamfehler erfasst,einen Gamspleißabschnitt (14), der einen Gamspleißvorgang durchführt,einen zwischen der Gamzulieferspule (21) und der Garnsammeleinrichtung (61) angeordneten ersten Spannungssteuerungsmechanismus (41),einen zwischen der Garnsammeleinrichtung (61) und der Auflaufspule (30) angeordneten zweiten Spannungssteuerungsmechanismus (42), gekennzeichnet durcheinen Steuerungsabschnitt (50), der den ersten Spannungssteuerungsmechanismus (41) und den zweiten Spannungssteuerungsmechanismus (42) steuert.
- Garnspulvorrichtung (10) nach Anspruch 1, dadurch gekennzeichnet, dass der Steuerungsabschnitt (50) den zweiten Spannungssteuerungsmechanismus (42) so steuert, dass die an das Garn angelegte Spannung in Übereinstimmung mit einer Spulgeschwindigkeit der Auflaufspule (30) eingestellt wird.
- Garnspulvorrichtung (10) nach Anspruch 2, dadurch gekennzeichnet, dass sie ferner einen Erfassungsmechanismus (76, 77) für die angesammelte Garnmenge enthält, um eine Menge des in der Garnsammeleinrichtung (61) angesammelten Garns zu erfassen, und dadurch, dass der Steuerungsabschnitt (50) die Spulgeschwindigkeit der Auflaufspule in Übereinstimmung mit der in der Garnsammeleinrichtung (61) angesammelten Garnmenge steuert und den zweiten Spannungssteuerungsmechanismus (42) so steuert, dass die an das Garn angelegte Spannung in Übereinstimmung mit der veränderten Spulgeschwindigkeit eingestellt wird.
- Spulautomat, dadurch gekennzeichnet, dass er eine Vielzahl der Garnspulvorrichtungen (10) gemäß einem der Ansprüche 1 bis 3 enthält.
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JP2008089627A JP5007826B2 (ja) | 2008-03-31 | 2008-03-31 | 糸巻取装置及びこの糸巻取装置を備える自動ワインダ |
EP20090155645 EP2107025B1 (de) | 2008-03-31 | 2009-03-19 | Garnwickelvorrichtung und automatischer Wickler mit einer Garnwickelvorrichtung |
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EP2377793A3 EP2377793A3 (de) | 2012-04-18 |
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EP20090155645 Active EP2107025B1 (de) | 2008-03-31 | 2009-03-19 | Garnwickelvorrichtung und automatischer Wickler mit einer Garnwickelvorrichtung |
EP11174044A Active EP2377793B1 (de) | 2008-03-31 | 2009-03-19 | Garnwickelvorrichtung und automatischer Wickler |
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JP2004277979A (ja) * | 2003-03-13 | 2004-10-07 | Kenichi Takahashi | 曲線裁断・縫製することにより誰にでも簡単に着用できる着物。 |
DE102004057825A1 (de) * | 2004-12-01 | 2006-06-08 | Saurer Gmbh & Co. Kg | Spulstelle einer Kreuzspule herstellenden Textilmaschine |
EP1828040B1 (de) * | 2004-12-01 | 2013-08-28 | Oerlikon Textile GmbH & Co. KG | Arbeitsstelle einer spulmaschine |
-
2008
- 2008-03-31 JP JP2008089627A patent/JP5007826B2/ja not_active Expired - Fee Related
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2009
- 2009-03-05 CN CN 200910126644 patent/CN101549806B/zh active Active
- 2009-03-19 EP EP20090155645 patent/EP2107025B1/de active Active
- 2009-03-19 EP EP11174044A patent/EP2377793B1/de active Active
Also Published As
Publication number | Publication date |
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EP2377793A3 (de) | 2012-04-18 |
EP2107025A2 (de) | 2009-10-07 |
EP2377793A2 (de) | 2011-10-19 |
JP5007826B2 (ja) | 2012-08-22 |
CN101549806A (zh) | 2009-10-07 |
EP2107025B1 (de) | 2013-05-08 |
CN101549806B (zh) | 2013-03-13 |
EP2107025A3 (de) | 2011-05-04 |
JP2009242042A (ja) | 2009-10-22 |
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