EP2960196B1 - Garnwicklungsmaschine - Google Patents

Garnwicklungsmaschine Download PDF

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Publication number
EP2960196B1
EP2960196B1 EP15169260.5A EP15169260A EP2960196B1 EP 2960196 B1 EP2960196 B1 EP 2960196B1 EP 15169260 A EP15169260 A EP 15169260A EP 2960196 B1 EP2960196 B1 EP 2960196B1
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EP
European Patent Office
Prior art keywords
package
yarn
set period
section
rotation
Prior art date
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Active
Application number
EP15169260.5A
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English (en)
French (fr)
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EP2960196A1 (de
Inventor
Atsushi Yamamoto
Tetsuya Namikawa
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Murata Machinery Ltd
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Murata Machinery Ltd
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H67/00—Replacing or removing cores, receptacles, or completed packages at paying-out, winding, or depositing stations
    • B65H67/08—Automatic end-finding and material-interconnecting arrangements
    • B65H67/081—Automatic end-finding and material-interconnecting arrangements acting after interruption of the winding process, e.g. yarn breakage, yarn cut or package replacement
    • B65H67/085—Automatic end-finding and material-interconnecting arrangements acting after interruption of the winding process, e.g. yarn breakage, yarn cut or package replacement end-finding at the take-up package, e.g. by suction and reverse package rotation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/30—Handled filamentary material
    • B65H2701/31—Textiles threads or artificial strands of filaments

Definitions

  • the present invention relates to a yarn winding machine.
  • a yarn winding machine described in Japanese Unexamined Patent Publication No. 2012-218922 As a conventional yarn winding machine, a yarn winding machine described in Japanese Unexamined Patent Publication No. 2012-218922 , for example, is known.
  • a yarn winding machine described in Japanese Unexamined Patent Publication No. 2012-218922 when a yarn is cut during a winding operation of the yarn, a package is separated from a touch roller by a moving section and the package is rotated in a direction opposite to a winding direction by a package driving section. A yarn end of a yarn which continues to the package (yarn end of the package) is then caught by a yarn end catching section and handed to a splicer device, and this yarn end is connected to a yarn end of a yarn from a yarn supplying bobbin.
  • the yarn end of the package when the yarn is cut, the yarn end of the package sometimes attaches to the package depending on a material of the yarn and/or an amount of fluff and the like, for example. As a result, the yarn end is difficult to be caught by the yarn end catching section, and furthermore, a pull-out rate of the yarn end may be lowered.
  • a yarn winding machine includes a holding section adapted to hold a package; a touch roller adapted to make contact with a surface of the package held by the holding section; a moving section adapted to move the package between a position in which the package makes contact with the touch roller and a position in which the package is separated from the touch roller; and a package driving section adapted to rotatably drive the package, wherein the package driving section carries out a forward rotation of rotating the package in a winding direction for a set period in a separated state in which the package having a yarn end is separated from the touch roller by the moving section.
  • the set period for forwardly rotating the package having the yarn end in the separated state is set, and the package can be forwardly rotated for the set period in the separated state when the yarn is disconnected, for example.
  • the yarn end thus can be detached from the package by a centrifugal force of the rotation in the forward rotation.
  • the package driving section may rotate the package at a first rotation speed for winding a yarn into the package and a second rotation speed for carrying out the forward rotation for the set period in the separated state, and the first rotation speed and the second rotation speed may be speeds different from one another.
  • the package can be rotated at the rotation speeds respectively suitable for the winding operation and the forward rotation, respectively.
  • the package driving section changes at least one of the set period and the second rotation speed according to a diameter of the package.
  • the yarn winding machine of the present invention may further include a determining section adapted to determine whether or not to carry out the forward rotation for the set period in the separated state based on a diameter of the package, wherein the package driving section may carry out the forward rotation for the set period in the separated state in accordance with a determination result of the determining section.
  • the easiness of attachment of the yarn end differs depending on the size of the diameter of the package, but the presence or the absence of the forward rotation can be controlled according to the easiness of attachment of the yarn end.
  • the package driving section may carry out the forward rotation for the set period in the separated state such that a peripheral speed of the package becomes constant.
  • the package driving section may carry out the forward rotation for the set period in the separated state such that a peripheral speed of the package becomes a speed corresponding to a diameter of the package.
  • the force acting on the yarn end becomes constant, and the force of detaching the yarn end from the package can be stabilized.
  • the yarn winding machine of the present invention may further include a yarn catching section adapted to catch the yarn end.
  • the yarn end detached from the package can be caught by the yarn catching section.
  • the package driving section may carry out a reverse rotation of rotating the package in a direction opposite to the winding direction in the separated state after carrying out the forward rotation for the set period in the separated state.
  • the yarn end thus can be further detached from the package.
  • the package driving section may carry out a reverse rotation of rotating the package in a direction opposite to the winding direction after carrying out the forward rotation for the set period in the separated state and after the package is brought into contact with the touch roller by the moving section.
  • the moving section moves the holding section to move the package between the contacting position and the separating position.
  • the package driving section is arranged in the holding section.
  • the package driving section rotatably drives the package directly.
  • the package driving section is a rotation motor.
  • a yarn winding machine capable of detaching the yarn end from the package.
  • Upstream and downstream respectively refer to upstream and downstream in a travelling direction of a yarn at the time of yarn winding.
  • the automatic winder 1 includes a plurality of winding units 10 arranged in line, an automatic doffing device 80, and a machine control device 90 as main components.
  • Each winding unit 10 is configured to wind a yarn 20 unwound from a yarn supplying bobbin 21 while traversing the yarn 20 to form a package (wound package) 30.
  • the automatic doffing device 80 travels to a position of the relevant winding unit 10 to collect the fully-wound package 30 discharged from the winding unit 10 and supply an empty bobbin to the winding unit 10.
  • the machine control device 90 includes a setting section 91 and a display section 92 as main components.
  • the setting section 91 can carry out the setting with respect to each winding unit 10 when an operator inputs a predetermined set value or selects an appropriate control method.
  • the display section 92 is configured to be able to display winding status of the yarn 20 in each winding unit 10, content of trouble that occurred, and the like.
  • the display section 92 may be configured by a touch panel, and the setting section 91 may be included in the display section 92.
  • each winding unit 10 includes a winding unit main body 16 and a unit control section 50 as main components.
  • the unit control section 50 for example, is configured to include a CPU, a RAM, a ROM, an I/O port, and a communication port.
  • the ROM stores a program for controlling each component of the winding unit main body 16.
  • Each component (details to be described later) of the winding unit main body 16 and the machine control device 90 are connected to the I/O port and the communication port, thus enabling communication of control information and the like.
  • the unit control section 50 thus can control the operation of each component of the winding unit main body 16.
  • the winding unit main body 16 includes a yarn unwinding assisting device 12, a tension applying device 13, a splicer device (yarn joining device) 14, and a yarn monitoring device 15, in this order from the yarn supplying bobbin 21, on a yarn travelling path between the yarn supplying bobbin 21 and a contact roller (touch roller) 29.
  • a yarn supplying section 11 is arranged at a lower part of the winding unit main body 16.
  • the yarn supplying section 11 is configured to hold the yarn supplying bobbin 21 transported by a bobbin transportation system (not illustrated) at a prescribed position.
  • the yarn unwinding assisting device 12 assists the unwinding of the yarn 20 from the yarn supplying bobbin 21 by lowering a regulating member 40 covering a core tube of the yarn supplying bobbin 21 accompanying unwinding of the yarn 20 from the yarn supplying bobbin 21.
  • the regulating member 40 makes contact with a balloon of the yarn 20 formed at an upper part of the yarn supplying bobbin 21 by rotation and a centrifugal force of the yarn 20 unwound from the yarn supplying bobbin 21 to control the balloon of the yarn 20 to an appropriate size, thus assisting the unwinding of the yarn 20.
  • a sensor (not illustrated) for detecting a chase portion of the yarn supplying bobbin 21 is arranged in proximity to the regulating member 40. When this sensor detects lowering of the chase portion, the yarn unwinding assisting device 12 lowers the regulating member 40 by an air cylinder (not illustrated), for example, following the lowering of the chase portion.
  • the tension applying device 13 applies a predetermined tension on the travelling yarn 20.
  • a tension applying device 13 for example, a gate-type tension applying device may be used in which movable comb teeth are arranged with respect to fixed comb teeth. The movable comb teeth are swung by a rotary solenoid so that the movable comb teeth are engaged with or released from the fixed comb teeth.
  • a disc-type tension applying device 13, for example, may be adopted instead of the gate-type tension applying device described above.
  • the splicer device 14 joins a lower yarn from the yarn supplying bobbin 21 and an upper yarn from the package 30 after the yarn monitoring device 15 detects a yarn defect and cuts the yarn, after yarn breakage while unwinding the yarn from the yarn supplying bobbin 21, and the like.
  • a yarn joining device adapted to join the upper yarn and the lower yarn may be a mechanical knotter or a device that uses fluid such as compressed air.
  • the yarn monitoring device 15 includes a head 49 provided with a sensor (not illustrated) for detecting a thickness of the yarn 20, and an analyzer 52 for processing a yarn thickness signal from the sensor.
  • the yarn monitoring device 15 detects a yarn defect such as slub by monitoring the yarn thickness signal from the sensor.
  • a cutter 39 for immediately cutting the yarn 20 when the yarn defect is detected by the yarn monitoring device 15 is arranged in proximity to the head 49.
  • a lower yarn catching member 25 for catching a yarn end of the lower yarn and guiding the yarn end to the splicer device 14 is arranged below the splicer device 14.
  • An upper yarn catching member 26 for catching a yarn end of the upper yarn and guiding the yarn end to the splicer device 14 is arranged above the splicer device 14.
  • the lower yarn catching member 25 includes a lower yarn pipe arm 33, and a lower yarn suction mouth 32 formed at a distal end of the lower yarn pipe arm 33.
  • the upper yarn catching member 26 includes an upper yarn pipe arm 36, and an upper yarn suction mouth (yarn catching section) 35 formed at a distal end of the upper yarn pipe arm 36.
  • the lower yarn pipe arm 33 and the upper yarn pipe arm 36 are configured to be swingable with shafts 34 and 37 as a center, respectively.
  • An appropriate negative pressure source is connected to the lower yarn pipe arm 33 and the upper yarn pipe arm 36.
  • the lower yarn pipe arm 33 is configured to generate a suction flow at the lower yarn suction mouth 32 so as to suck and catch the yarn end of the lower yarn.
  • the upper yarn pipe arm 36 is configured to generate a suction flow at the upper yarn suction mouth 35 so as to suck and catch the yarn end of the upper yarn.
  • a shutter (not illustrated) is arranged on a basal end side of each of the lower yarn pipe arm 33 and the upper yarn pipe arm 36. Each shutter is opened/closed in accordance with the signal from the unit control section 50. The stopping and generation of the suction flow from the lower yarn suction mouth 32 and the upper yarn suction mouth 35 are thereby controlled.
  • the winding unit main body 16 includes a cradle (holding section) 23 adapted to removably support a winding bobbin 22, and a contact roller 29 adapted to be rotated when brought into contact with a peripheral surface of the winding bobbin 22 or a peripheral surface of the package 30.
  • the winding unit main body 16 also includes an arm-type traverse device 70 in proximity to the cradle 23 to traverse the yarn 20, so that the yarn 20 can be wound into the package 30 while being traversed by the traverse device 70.
  • a guide plate 28 is arranged slightly upstream of a traversing area. The guide plate 28 guides the yarn 20 from the upstream to the traversing area.
  • a traverse supporting point portion 27 made of ceramic is provided further upstream of the guide plate 28.
  • the traverse device 70 traverses the yarn 20 in a direction indicated with an arrow in FIG. 2 with the traverse supporting point portion 27 as a supporting point.
  • the cradle 23 is configured to be swingable with a swing shaft 48 as the center.
  • the cradle 23 absorbs an increase in a yarn layer diameter of the package 30 accompanying the winding of the yarn 20 around the winding bobbin 22 by the swinging of the cradle 23.
  • the cradle 23 includes a rotation speed sensor 24 adapted to measure a rotation speed of the package 30.
  • a package driving motor (package driving section) 41 configured by a servo motor is attached to the cradle 23.
  • the winding bobbin 22 is rotatably driven by the package driving motor 41 to wind the yarn 20 around the winding bobbin 22.
  • the package driving motor 41 can be rotatably driven in a forward rotation (hereinafter simply referred to as "forward rotation") of rotating the package 30 (winding bobbin 22) in the winding direction.
  • the package driving motor 41 can be rotatably driven in a reverse rotation (hereinafter simply referred to as "reverse rotation") of rotating the package 30 in an anti-winding direction, which is a direction opposite to the winding direction.
  • a motor shaft of the package driving motor 41 is coupled with the winding bobbin 22 so as to be relatively non-rotatable when the winding bobbin 22 is supported by the cradle 23 (so-called direct drive type).
  • An operation of the package driving motor 41 is controlled by a package drive control section 42.
  • the package drive control section 42 controls the operation and stop of the package driving motor 41 upon receiving an operation signal from the unit control section 50.
  • the package driving motor 41 is not limited to a servo motor, and may be various types of motors such as a step motor or an induction motor.
  • An angle sensor 44 adapted to detect an angle of the cradle 23 is attached to the swing shaft 48.
  • the angle sensor 44 includes a rotary encoder, for example, and transmits an angle signal corresponding to the angle of the cradle 23 to the unit control section 50. Since the angle of the cradle 23 changes with the increase in a wound diameter of the package 30, the diameter of the package 30 can be detected by detecting the swing angle of the cradle 23 by the angle sensor 44.
  • an appropriate configuration that can detect the diameter of the package 30 such as a method using a hall IC or an absolute type sensor may be used other than the angle sensor 44.
  • the method of detecting the diameter of the package 30 includes, for example, a method of detecting based on a total length of the yarn 20 wound into the package 30, a winding speed of the yarn 20, and a type (thickness or the like) of the yarn 20.
  • the method of detecting the diameter of the package 30 may also be a method of measuring the time from the start of winding of the yarn 20 around the package 30. Specifically, by obtaining the winding speed of the yarn 20 and the type (thickness or the like) of the yarn 20, and storing in advance a relationship between an elapsed time from the start of winding of the yarn 20 and the diameter of the package 30 in the unit control section 50, the diameter of the package 30 can be calculated based on the elapsed time.
  • the method of detecting the diameter of the package 30 may also be a method based on the travelling speed of the yarn 20 on the yarn travelling path between the yarn supplying bobbin 21 and the contact roller 29.
  • the yarn monitoring device or a dedicated yarn speed sensor is arranged on the yarn travelling path to detect the travelling speed of the yarn 20.
  • a winding angle is calculated based on the travelling speed and the traverse speed of the yarn 20
  • a peripheral speed of the package 30 is calculated from the winding angle and the yarn travelling speed.
  • the diameter of the package 30 can be calculated based on the rotation speed of the package 30 and the peripheral speed of the package 30.
  • the configuration for detecting the angle of the cradle 23 such as the angle sensor 44 may be omitted.
  • the traverse device 70 includes a traverse driving motor 76, an output shaft 77, and a traverse arm 74.
  • FIG. 3 is a view seen in an axial direction of the contact roller 29.
  • the rotation in the winding direction of the package 30 is a clockwise direction in FIG. 3
  • the rotation in an anti-winding direction of the package 30 is a counterclockwise direction in FIG. 3 .
  • the traverse driving motor 76 is a motor adapted to drive the traverse arm 74, and is configured by a servo motor and the like. As illustrated in FIG. 2 , the operation of the traverse driving motor 76 is controlled by a traverse control section 78.
  • the traverse driving motor 76 may be other motors such as a step motor, a voice coil motor, or the like.
  • the traverse control section 78 is configured by a hardware and the like by a dedicated microprocessor, and controls the operation and the stop of the traverse driving motor 76 upon receiving a signal from the unit control section 50. Power of the traverse driving motor 76 is transmitted to a basal end portion of the traverse arm 74 through the output shaft 77 illustrated in FIG. 3 . When a rotor of the traverse driving motor 76 is rotated forwardly and reversely, the traverse arm 74 is reciprocated in the perpendicular direction (left and right direction of FIG. 2 (winding width direction of the package 30)) on the plane of drawing of FIG. 3 . The traverse arm 74 in FIG. 3 indicates a position at the end of the traverse.
  • a hook-shaped yarn guide section 73 is formed at a distal end portion of the traverse arm 74.
  • the traverse arm 74 can guide the yarn 20 by the yarn guide section 73.
  • the yarn 20 can be traversed when the traverse arm 74 is reciprocated while the yarn guide section 73 is guiding the yarn 20.
  • the winding unit main body 16 includes a rotation plate 17 rotatable around the swing shaft 48 as the center.
  • the cradle 23 is configured to integrally swing with a rotation plate 17 around the swing shaft 48 as the center.
  • a spring 18 for gradually reducing a contact pressure configured as a tension spring, and an air cylinder 60 are connected to the rotation plate 17.
  • a predetermined rotation torque can be applied on the cradle 23 by the spring 18 and the air cylinder 60.
  • the air cylinder (moving section) 60 is configured as a double-acting cylinder which includes therein a piston 601.
  • compressed air having an air pressure P1 is supplied to a cylinder chamber on the right side in the plane of drawing (side close to rotation plate 17) of the piston 601
  • compressed air having an air pressure P2 is supplied to a cylinder chamber on the left side in the plane of drawing (side far from the rotation plate 17) of the piston 601.
  • An electro-pneumatic regulator 61 is connected to a pipe for supplying the compressed air having the air pressure P2 to the air cylinder 60.
  • the electro-pneumatic regulator 61 can adjust the air pressure P2 in a stepless manner.
  • the control of the air pressure P2 by the electro-pneumatic regulator 61 is carried out based on a control signal input from the unit control section 50.
  • the force of the air cylinder 60 pulling the cradle 23 increases, and thus the torque for rotating the cradle 23 towards the front side of the winding unit main body 16 with the swing shaft 48 as the center increases.
  • the contact roller 29 is arranged further on the front side of the winding unit main body 16 than the swing shaft 48, and hence the contact pressure of the package 30 and the contact roller 29 can be enhanced by the reduction of the air pressure P2.
  • the air pressure P2 when the air pressure P2 is increased, the force of the air cylinder 60 pulling the cradle 23 weakens, and hence the torque for rotating the cradle 23 towards the rear side of the winding unit main body 16 around the swing shaft 48 as the center increases.
  • the contact pressure of the package 30 and the contact roller 29 thus can be weakened.
  • the package 30 can be separated from the surface of the contact roller 29.
  • the air cylinder 60 can move the cradle 23 and move the package 30. Therefore, as illustrated in FIG. 5 , the position of the package 30 is switched between a position (non-contacting position Q1) in which the package 30 is separated from the contact roller 29 and a position (contacting position Q2) in which the package 30 makes contact with the contact roller 29.
  • the unit control section 50 of the present embodiment transmits a drive signal to the package drive control section 42, and controls the rotational drive of the package driving motor 41. Specifically, when the yarn monitoring device 15 detects the yarn defect and the yarn cut is carried out or when the yarn breakage (hereinafter referred to as "yarn cut and the like") occurs during the unwinding from the yarn supplying bobbin 21, the unit control section 50 carries out the forward rotation of rotating the package 30, in the winding direction for a set period, in a separated state (lift-up state) of being lifted up to the non-contacting position Q1 and separated from the contact roller 29.
  • the unit control section 50 controls the catching operation (swinging of the lower yarn pipe arm 33 and the upper yarn pipe arm 36) of the lower yarn catching member 25 and the upper yarn catching member 26.
  • the unit control section 50 moves the driving of the air cylinder 60 to move the cradle 23, and controls the movement of the package 30 between the non-contacting position Q1 and the contacting position Q2 (see FIGS. 4 and 5 ) .
  • the unit control section 50 controls the opening/closing of the shutter arranged in the lower yarn pipe arm 33 and the upper yarn pipe arm 36, and controls the stopping and the generation of the suction flow from the lower yarn suction mouth 32 and the upper yarn suction mouth 35.
  • the lower yarn and the upper yarn need to be joined in the splicer device 14.
  • the lower yarn needs to be caught with the lower yarn suction mouth 32, and the upper yarn needs to be caught with the upper yarn suction mouth 35, and pulled out.
  • the control of the pull-out operation of the upper yarn is carried out in the winding unit 10 when the yarn cut and the like occurred, and the pull-out method will be described in detail below with reference to FIG. 2 and FIGS. 4 to 6 .
  • the lift-up signal is a signal for driving the air cylinder 60 with the electro-pneumatic regulator 61 to lift-up the package 30 to the non-contacting position Q1.
  • the forward rotation signal is a signal for forwardly rotating the package 30 by the package driving motor 41.
  • the reverse rotation signal is a signal for reversely rotating the package 30 by the package driving motor 41.
  • the upper yarn catching member drive signal is a signal for driving the upper yarn catching member 26 and swinging the upper yarn pipe arm 36 to bring the upper yarn suction mouth 35 closer to the package 30.
  • a shutter open signal is a signal for generating the suction flow from the upper yarn suction mouth 35 with the shutter of the upper yarn pipe arm 36 in the opened state.
  • the lift-up signal is turned OFF and the surface of the package 30 makes contact with the contact roller 29.
  • the forward rotation signal is turned ON, and the package 30 is forwardly rotated by the package driving motor 41.
  • the package driving motor 41 is controlled by the unit control section 50, and the rotation speed of the package 30 is assumed as a first rotation speed.
  • the factors of the yarn cut and the like include, for example, (A) when the yarn monitoring device 15 detects the yarn defect and the yarn 20 is cut by the cutter 39 during a steady winding period in which the yarn 20 is wound into the package 30 at a set winding speed; (B) when the yarn 20 is cut by an excessive tension and the like regardless of the cutter 39 during the steady winding period; (C) when the yarn monitoring device 15 detects abnormality of the yarn 20 and the cutting of the yarn 20 is executed by the cutter 39 during an acceleration winding period until the rotation of the package 30 reaches the set winding speed; and (D) when the yarn 20 unwound from the yarn supplying bobbin 21 runs out and a new yarn supplying bobbin 21 is set in the yarn supplying section 11.
  • the lift-up signal is turned ON, the package 30 is lifted up to the non-contacting position Q1, and the contact between the package 30 and the contact roller 29 is released.
  • the forward rotation signal is turned ON, and the forward rotation of the package 30 is started in the lift-up state in which the package 30 is lifted up to the non-contacting position Q1 (released state in which the contact between the package 30 and the contact roller 29 is released).
  • the ON state of the forward rotation signal is maintained, and the forward rotation of the package 30 in the lift-up state is carried out.
  • the forward rotation signal is turned OFF, and the forward rotation of the package 30 is gradually decelerated to a stop.
  • the package driving motor 41 is controlled by the unit control section 50, and the rotation speed of the package 30 is set to a second rotation speed.
  • the second rotation speed is a speed different from the first rotation speed, and is assumed to be a speed higher than the first rotation speed.
  • the set period ⁇ and the second rotation speed are set in the unit control section 50.
  • the set period ⁇ and the second rotation speed may be a constant value, or may be set according to the diameter of the package 30 at the time of the occurrence of the yarn cut and the like. For example, if the diameter of the package 30 is large, a yarn end 30a is easily detached from the surface of the package 30, and hence the set period ⁇ can be set short and/or the second rotation speed can be set low. For example, if the diameter of the package 30 is small, the yarn end 30a is less likely to detach from the surface of the package 30, and hence the set period ⁇ can be set longer and/or the second rotation speed can be set higher.
  • the second rotation speed may include a plurality of different speeds, or may be set so that the speed becomes higher in the middle (certain time point) of the forward rotation, for example.
  • the second rotation speed may be set so that the peripheral speed of the package 30 (the travelling speed of the yarn 20) becomes constant regardless of the diameter of the package 30.
  • the package driving motor 41 may carry out the forward rotation for the set period ⁇ in the lift-up state so that the peripheral speed of the package 30 becomes constant regardless of the diameter of the package 30.
  • the second rotation speed may be set so that the peripheral speed of the package 30 changes according to the diameter of the package 30.
  • the package driving motor 41 may carry out the forward rotation for the set period ⁇ in the lift-up state so that the peripheral speed of the package 30 becomes the speed corresponding to the diameter of the package 30.
  • the upper yarn catching member drive signal is turned ON, the upper yarn pipe arm 36 is swung so that the upper yarn suction mouth 35 approaches the package 30, and the upper yarn suction mouth 35 is moved to the yarn end catching position.
  • the shutter open signal is turned ON, the shutter of the upper yarn pipe arm 36 is opened, and the suction flow is generated from the upper yarn suction mouth 35.
  • the reverse rotation signal is turned ON, and the reverse rotation of the package 30 is started in the lift-up state.
  • the yarn end 30a of the package 30 that reversely rotates in the lift-up state is sucked and caught by the upper yarn suction mouth 35.
  • the lift-up signal is turned OFF, and the package 30 is moved to the contacting position Q2 where the package 30 makes contact with the contact roller 29.
  • the yarn end 30a of the package 30 that reversely rotates while being located at the contacting position Q2 is sucked and caught by the upper yarn suction mouth 35 located in proximity to the surface of the package 30.
  • the upper yarn catching member drive signal is turned OFF, and the upper yarn suction mouth 35 is moved towards the yarn joining position.
  • the yarn end 30a of the package 30 is guided to the splicer device 14, and the yarn joining operation of the lower yarn caught by the lower yarn suction mouth 32 and the upper yarn caught by the upper yarn suction mouth 35 is started in the splicer device 14.
  • the reverse rotation signal is turned OFF, and the reverse rotation of the package 30 is gradually decelerated to a stop.
  • the shutter open signal is turned OFF, the shutter of the upper yarn pipe arm 36 is closed, and the suction flow is stopped from the upper yarn suction mouth 35.
  • the package 30 having the yarn end 30a when the set period for forwardly rotating, in the lift-up state, the package 30 having the yarn end 30a is set, and the yarn cut and the like occurred, the package 30 can be forwardly rotated additionally only for a set period ⁇ in the lift-up state.
  • the yarn end 30a thus can be detached from the package 30 by a centrifugal force of the rotation when the package 30 is forwardly rotated.
  • the pull-out rate of the upper yarn at the time of catching the upper yarn can be enhanced.
  • the package driving motor 41 can rotate the package 30 at the first rotation speed in the winding operation of the package 30 and the second rotation speed when forwardly rotating the package 30 for the set period ⁇ in the lift-up state.
  • the first rotation speed and the second rotation speed are speeds different from one another.
  • the package 30 can be rotated at the rotation speeds respectively suitable for the winding operation of the package 30 and the forward rotation in the lift-up state.
  • the second rotation speed is higher than the first rotation speed, and the yarn end 30a can thus be further detached from the package 30.
  • the package driving motor 41 at least one of the set period ⁇ and the second rotation speed can be changed according to the diameter of the package 30.
  • easiness of attachment of the yarn end 30a differs depending on the size of the diameter of the package 30
  • the above-described operation effect of detaching the yarn end 30a from the package 30 by the centrifugal force of the rotation can be controlled according to the easiness of attachment of the yarn end 30a.
  • a load applied on the package driving motor 41 can also be adjusted depending on the size of the diameter of the package 30.
  • the set period ⁇ can be set short and/or the second rotation speed can be set low, and thus safety in detaching the yarn end 30a can be enhanced.
  • the set period ⁇ can be set long and/or the second rotation speed can be set high, and thus the centrifugal force of the rotation when forwardly rotating the package 30 in the lift-up state can be enhanced to further detach the yarn end 30a.
  • the forward rotation can be carried out for the set period ⁇ in the lift-up state so that the peripheral speed of the package 30 becomes constant regardless of the diameter of the package 30.
  • the operation effect of detaching the yarn end 30a from the package 30 by the centrifugal force of the rotation can be stably realized.
  • the load of the cradle 23 by the forward rotation can be reduced, and damage of the cradle 23 can also be suppressed.
  • the forward rotation can be carried out for the set period ⁇ in the lift-up state so that the peripheral speed of the package 30 becomes the speed corresponding to the diameter of the package 30.
  • the force acting on the yarn end 30a becomes constant, and the force of detaching the yarn end 30a from the package 30 can be stabilized.
  • the winding unit 10 includes the upper yarn suction mouth 35 adapted to catch the yarn end 30a.
  • the yarn end 30a can be detached from the package 30, and hence the yarn end 30a can be reliably caught by the upper yarn suction mouth 35. As a result, the occurrence of the pull-out mistake of the upper yarn can be reduced.
  • the package driving motor 41 forwardly rotates the package 30 for the set period ⁇ in the lift-up state, and then reversely rotates the package 30 in the lift-up state.
  • the yarn end 30a thus can be further detached from the package 30.
  • FIG. 7 is a chart diagram illustrating another example of the operation of the winding unit 10.
  • the forward rotation signal may not be turned OFF and the forward rotation of the package 30 may not be gradually decelerated to a stop.
  • the lift-up signal is turned ON at time t1
  • the package 30 is lifted up to the non-contacting position Q1
  • the contact between the package 30 and the contact roller 29 is released.
  • the set period ⁇ ' set in the unit control section 50 is the period from time t1 to time t3 at which the forward rotation signal is turned OFF.
  • the forward rotation is continued with the rotation speed of the package 30 made constant after the occurrence of the yarn cut and the like and until time t1 at which the package 30 is lifted up.
  • the forward rotation may be continued while decelerating the package 30 at the deceleration at which the package 30 does not come to a stop.
  • the lift-up signal may be turned OFF and the package 30 may be moved to the contacting position Q2.
  • the package driving motor 41 reversely rotates the package 30 after forwardly rotating the package 30 for the set period ⁇ ' in the lift-up state and after moving the package 30 to the contacting position Q2.
  • the present invention is not limited to the above embodiment.
  • the package 30 is rotatably driven directly by the package driving motor 41, but in the present invention, the contact roller may be rotatably driven so that the package 30 is rotated accompanying the rotation of the contact roller.
  • the unit control section 50 of the embodiment described above may determine whether or not to forwardly rotate the package 30 for the set period ⁇ in the lift-up state based on the diameter of the package 30.
  • the package driving motor 41 may forwardly rotate the package 30 for the set period ⁇ in the lift-up state according to the determination result of the unit control section 50.
  • the easiness of attachment of the yarn end 30a differs depending on the size of the diameter of the package 30, and the presence or the absence of the forward rotation can be controlled according to the easiness of attachment of the yarn end 30a.
  • the forward rotation of the package 30 in the lift-up state does not need to be performed on a constant basis when the yarn cut and the like occur, and thus the lowering of the production efficiency can be suppressed.
  • the unit control section 50 may determine to forwardly rotate the package 30 for the set period ⁇ only when the diameter of the package 30 is smaller than or equal to a first set diameter, and the package driving motor 41 may forwardly rotate the package 30 for the set period ⁇ in the lift-up state only when the diameter of the package 30 is smaller than or equal to the first set diameter.
  • the package driving motor 41 may forwardly rotate the package 30 for the set period ⁇ in the lift-up state only when the diameter of the package 30 is smaller than or equal to the first set diameter.
  • the unit control section 50 in this case configures a determining section.
  • the usual pull-out operation of the upper yarn (pull-out operation of not forwardly rotating the package 30 for the set period ⁇ in the lift-up state) is first carried out to perform the yarn joining operation.
  • the pull-out operation described above illustrated in FIGS. 5 and 6 may be carried out only when the upper yarn is detected by the yarn monitoring device 15 (at the time of catching mistake of the upper yarn by the upper yarn suction mouth 35).
  • the forward rotation of the package 30 in the lift-up state does not need to be performed on a constant basis when the yarn cut and the like occur, and thus the lowering of the production efficiency can be suppressed.
  • the package drive control section 42, the traverse control section 78, and the unit control section 50 are separately arranged, but at least part of such control sections may be integrated.
  • a structure of moving the package 30 between the non-contacting position Q1 and the contacting position Q2 by the air cylinder 60 has been illustrated.
  • a structure of moving the package 30 between the non-contacting position Q1 and the contacting position Q2 by a step motor and the like may be adopted.
  • the open/close operation of the shutter is controlled by the unit control section 50 to control the stop and generation of the suction flow from the upper yarn suction mouth 35, but the shutter may be constantly open.
  • the control of the unit control section 50 can be simplified, for example.
  • the package 30 may be reversely rotated once and then forwardly rotated for the set period ⁇ in the lift-up state.
  • the yarn end 30a can be made to easily detach from the package 30.
  • the electro-pneumatic regulator 61 may be omitted, and the package 30 may be lifted up with only the turning ON/OFF of the air supply to the air cylinder 60.
  • the package 30 may be reversely rotated at the rotation speed at which the yarn end 30a can be detached for the set period in the lift-up state. In this case as well, the operation effect of being able to detach the yarn end 30a from the package 30 is obtained.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Replacing, Conveying, And Pick-Finding For Filamentary Materials (AREA)
  • Winding Filamentary Materials (AREA)

Claims (17)

  1. Garnwickelmaschine (10), welche aufweist:
    einen Halteabschnitt (23), der zum Halten einer Packung (30) ausgelegt ist;
    eine Tastrolle (29), die dazu ausgelegt ist, mit einer Oberfläche der von dem Halteabschnitt (23) gehaltenen Packung (30) Kontakt herzustellen;
    einen Bewegungsabschnitt (60), der dazu ausgelegt ist, die Packung (30) zwischen einer Position, in der die Packung (30) Kontakt mit der Tastrolle (29) herstellt, und einer Position, in der die Packung (30) von der Tastrolle (29) getrennt ist, zu bewegen; und
    einen Packungsantriebsabschnitt (41), der dazu ausgelegt ist, die Packung (30) drehend anzutreiben,
    wobei der Packungsantriebsabschnitt (41) eine Vorwärtsdrehung zum Drehen der Packung (30) in einer Wickelrichtung für eine gesetzte Dauer (α, α') in einem getrennten Zustand ausführt, in dem durch den Bewegungsabschnitt (60) ein Garnende (30a) der Packung (30) von der Tastrolle (29) getrennt ist, und wobei
    der Packungsantriebsabschnitt (41) die Packung (30) mit einer ersten Drehzahl zum Wickeln eines Garns auf die Packung (30) und mit einer zweiten Drehzahl der Ausführung der Vorwärtsdrehung für die gesetzte Dauer (α, α') im getrenntem Zustand dreht, wobei die erste Drehzahl und die zweite Drehzahl voneinander unterschiedliche Geschwindigkeiten sind, dadurch gekennzeichnet, dass
    der Packungsantriebsabschnitt (41) die gesetzte Dauer (α, α') und/oder die zweite Drehzahl gemäß einem Durchmesser der Packung (30) ändert.
  2. Die Garnwickelmaschine (10) nach Anspruch 1, die ferner einen Bestimmungsabschnitt (50) aufweist, der dazu ausgelegt ist, basierend auf dem Durchmesser der Packung (30) zu bestimmen, ob die Vorwärtsdrehung für die gesetzte Dauer (α, α') in getrenntem Zustand auszuführen ist oder nicht,
    wobei der Packungsantriebsabschnitt (41) die Vorwärtsdrehung für die gesetzte Dauer (α, α') im getrennten Zustand gemäß einem Bestimmungsergebnis des Bestimmungsabschnitts (50) ausführt.
  3. Die Garnwickelmaschine (10) nach Anspruch 1 oder 2, wobei der Packungsantriebsabschnitt (41) die Vorwärtsdrehung für die gesetzte Dauer (α, α') im getrennten Zustand derart ausführt, dass eine Umfangsgeschwindigkeit der Packung (30) konstant wird.
  4. Die Garnwickelmaschine (10) nach Anspruch 1 oder 2, wobei der Packungsantriebsabschnitt (41) die Vorwärtsdrehung für die gesetzte Dauer (α, α') im getrennten Zustand derart ausführt, dass eine Umfangsgeschwindigkeit der Packung (30) zu einer Geschwindigkeit wird, die einem Durchmesser der Packung (30) entspricht.
  5. Die Garnwickelmaschine (10) nach einem der Ansprüche 1 bis 4, die ferner einen Garnfangabschnitt (35) aufweist, der dazu ausgelegt ist, das Garnende zu fangen.
  6. Die Garnwickelmaschine (10) nach einem der Ansprüche 1 bis 5, wobei der Packungsantriebsabschnitt (41) eine Rückwärtsdrehung zum Drehen der Packung (30) in einer Richtung entgegengesetzt zur Wickelrichtung im getrennten Zustand nach Ausführung der Vorwärtsdrehung für die gesetzte Dauer (α, α') im getrennten Zustand ausführt.
  7. Die Garnwickelmaschine (10) nach einem der Ansprüche 1 bis 5, wobei der Packungsantriebsabschnitt (41) eine Rückwärtsdrehung zum Drehen der Packung (30) in einer Richtung, entgegengesetzt zur Wickelrichtung nach Ausführung der Vorwärtsdrehung für die gesetzte Dauer (α, α') im getrennten Zustand, und nachdem die Packung (30) in Kontakt mit der Tastrolle (29) durch den Bewegungsabschnitt (60) gebracht ist, ausführt.
  8. Die Garnwickelmaschine (10) nach einem der Ansprüche 1 bis 7, wobei der Bewegungsabschnitt (60) die Packung (30) zwischen der Kontaktierungsposition und der Trennungsposition durch Bewegung des Halteabschnitts (23) bewegt.
  9. Die Garnwickelmaschine (10) nach Anspruch 8, wobei der Packungsantriebsabschnitt (41) in dem Halteabschnitt (23) angeordnet ist.
  10. Die Garnwickelmaschine (10) nach Anspruch 9, wobei der Packungsantriebsabschnitt (41) die Packung (30) direkt drehend antreibt.
  11. Die Garnwickelmaschine (10) nach Anspruch 10, wobei der Packungsantriebsabschnitt (41) ein Drehmotor ist.
  12. Verfahren zum Betreiben einer Garnwickelmaschine (10), welches die Schritte aufweist:
    Halten einer Packung (30) in einem Halteabschnitt (23);
    Bewegen der Packung (30) zwischen einer Position, in der die Packung (30) Kontakt mit einer Tastrolle (29) herstellt, und einer Position, in der die Packung (30) von der Tastrolle (29) getrennt ist;
    Antreiben der Packung (30); und
    Drehen der Packung (30) in einer Wickelrichtung für eine gesetzte Dauer (α, α') in einem getrennten Zustand, in dem ein Garnende (30a) der Packung (30) von der Tastrolle (29) getrennt ist, wobei ein Packungsantriebsabschnitt (41) die Packung (30) mit einer ersten Drehzahl zum Wickeln des Garns zur Packung (30) und mit einer zweiten Drehzahl zur Ausführung der Vorwärtsdrehung für die gesetzte Dauer (α, α') im getrennten Zustand dreht, wobei die erste Drehzahl und die zweite Drehzahl voneinander unterschiedliche Geschwindigkeiten sind,
    dadurch gekennzeichnet, dass der Packungsantriebsabschnitt (41) die gesetzte Dauer (α, α') und/oder die zweite Drehzahl gemäß einem Durchmesser der Packung (30) ändert.
  13. Das Verfahren nach Anspruch 12, das ferner aufweist, basierend auf einem Durchmesser der Packung (30) zu bestimmen, ob die Vorwärtsdrehung für die gesetzte Dauer (α, α') in getrenntem Zustand auszuführen ist oder nicht,
    wobei die Vorwärtsdrehung für die gesetzte Dauer (α, α') im getrennten Zustand gemäß einem Bestimmungsergebnis ausgeführt wird.
  14. Das Verfahren nach Anspruch 12 oder 13, wobei die Vorwärtsdrehung für die gesetzte Dauer (α, α') im getrennten Zustand derart ausgeführt wird, dass eine Umfangsgeschwindigkeit der Packung (30) konstant wird.
  15. Das Verfahren nach Anspruch 12 oder 13, wobei die Vorwärtsdrehung für die gesetzte Dauer (α, α') im getrennten Zustand derart ausgeführt wird, dass eine Umfangsgeschwindigkeit der Packung (30) zu einer Geschwindigkeit wird, die einem Durchmesser der Packung (30) entspricht.
  16. Das Verfahren nach einem der Ansprüche 12 bis 15, wobei eine Rückwärtsdrehung zum Drehen der Packung (30) in Richtung entgegengesetzt zur Wickelrichtung im getrennten Zustand nach Ausführung der Vorwärtsdrehung für die gesetzte Dauer (α, α') im getrennten Zustand ausgeführt wird.
  17. Das Verfahren nach einem der Ansprüche 12 bis 15, wobei eine Rückwärtsdrehung zum Drehen der Packung (30) in Richtung entgegengesetzt zur Wickelrichtung nach Ausführung der Vorwärtsdrehung für die gesetzte Dauer (α, α') im getrennten Zustand und nachdem die Packung (30) in Kontakt mit der Tastrolle (29) gebracht ist, ausgeführt wird.
EP15169260.5A 2014-06-27 2015-05-26 Garnwicklungsmaschine Active EP2960196B1 (de)

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JP2014132544A JP2016011176A (ja) 2014-06-27 2014-06-27 糸巻取機

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JP2018052638A (ja) * 2016-09-26 2018-04-05 村田機械株式会社 繊維機械
JP2018177389A (ja) * 2017-04-04 2018-11-15 村田機械株式会社 糸巻取機
CN107881616A (zh) * 2017-12-14 2018-04-06 日照贝尔机械有限公司 一种直曲丝混合的人造草丝生产装置
JP2021062967A (ja) * 2019-10-16 2021-04-22 村田機械株式会社 糸巻取装置及び糸捕捉方法

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DE4032617A1 (de) 1990-10-15 1992-04-16 Schlafhorst & Co W Vorrichtung zum automatischen durchfuehren des eine feste schrittfolge aufweisenden fadenverbindens sowie kopswechsels an einer spulstelle einer spulmaschine
DE4222377A1 (de) 1992-07-08 1994-01-13 Schlafhorst & Co W Verfahren und Vorrichtung zum Erfassen eines auf einer Kreuzspule angeordneten Fadenendes
DE4418743A1 (de) 1994-05-28 1995-11-30 Rieter Ingolstadt Spinnerei Verfahren zum pneumatischen Aufnehmen des Endes eines auf einer Spule aufgewickelten Fadens
EP2511216A2 (de) 2011-04-13 2012-10-17 Murata Machinery, Ltd. Garnwickelvorrichtung und Garnentnahmeverfahren
EP2738128A2 (de) 2012-11-30 2014-06-04 Murata Machinery, Ltd. Garnwicklungsmaschine

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JP2013252966A (ja) * 2012-06-08 2013-12-19 Murata Machinery Ltd 糸巻取装置

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Publication number Priority date Publication date Assignee Title
DE4032617A1 (de) 1990-10-15 1992-04-16 Schlafhorst & Co W Vorrichtung zum automatischen durchfuehren des eine feste schrittfolge aufweisenden fadenverbindens sowie kopswechsels an einer spulstelle einer spulmaschine
DE4222377A1 (de) 1992-07-08 1994-01-13 Schlafhorst & Co W Verfahren und Vorrichtung zum Erfassen eines auf einer Kreuzspule angeordneten Fadenendes
DE4418743A1 (de) 1994-05-28 1995-11-30 Rieter Ingolstadt Spinnerei Verfahren zum pneumatischen Aufnehmen des Endes eines auf einer Spule aufgewickelten Fadens
EP2511216A2 (de) 2011-04-13 2012-10-17 Murata Machinery, Ltd. Garnwickelvorrichtung und Garnentnahmeverfahren
EP2738128A2 (de) 2012-11-30 2014-06-04 Murata Machinery, Ltd. Garnwicklungsmaschine

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CN105270915B (zh) 2019-09-10
JP2016011176A (ja) 2016-01-21
EP2960196A1 (de) 2015-12-30

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