EP3549893B1 - Automatische spulmaschine, garnwickelsystem und garnwickelverfahren - Google Patents

Automatische spulmaschine, garnwickelsystem und garnwickelverfahren Download PDF

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Publication number
EP3549893B1
EP3549893B1 EP17876272.0A EP17876272A EP3549893B1 EP 3549893 B1 EP3549893 B1 EP 3549893B1 EP 17876272 A EP17876272 A EP 17876272A EP 3549893 B1 EP3549893 B1 EP 3549893B1
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EP
European Patent Office
Prior art keywords
yarn
winding speed
information
automatic winder
quality
Prior art date
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Active
Application number
EP17876272.0A
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English (en)
French (fr)
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EP3549893A4 (de
EP3549893A1 (de
Inventor
Takeshi Hamada
Tetsuji Masai
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Murata Machinery Ltd
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Murata Machinery Ltd
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Publication of EP3549893A1 publication Critical patent/EP3549893A1/de
Publication of EP3549893A4 publication Critical patent/EP3549893A4/de
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H54/00—Winding, coiling, or depositing filamentary material
    • B65H54/70—Other constructional features of yarn-winding machines
    • B65H54/74—Driving arrangements
    • 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
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H13/00—Other common constructional features, details or accessories
    • D01H13/32—Counting, measuring, recording or registering 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
    • 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 an automatic winder, a yarn winding system, and a yarn winding method.
  • a yarn winding system which includes a spinning frame having a plurality of spinning units to form yarn supply bobbins and an automatic winder having a plurality of winder units to wind yarn from the yarn supply bobbins to form packages (for example, see JP H6-76177 B ).
  • JP H06 322621 A an automatic winder with an acquisition unit to acquire information related to the quality of the yarn, as well as a yarn winding system and method comprising such an automatic winder are provided.
  • a similar system is taught by WO 2011/038524 A1 , and US 5 046 013 A teaches a quality control system in a spinning mill.
  • the yarn winding speed in the automatic winder may be changed according to the processing status of forming a yarn supply bobbin in the spinning frame.
  • the winding speed of the automatic winder can be controlled appropriately based on the processing status of forming a yarn supply bobbin in the spinning frame (for example, the supply timing of a yarn supply bobbin transferred from the spinning frame to the automatic winder) .
  • the amount of hairiness may change to cause a change in yarn quality. It is undesirable that the yarn quality changes in the middle of forming a package.
  • An aspect of the present invention aims to provide an automatic winder, a yarn winding system, and a yarn winding method that can reduce changes in yarn quality in the middle of forming a package.
  • An automatic winder winds yarn from a yarn supply bobbin to form a package.
  • the automatic winder includes an acquisition unit configured to acquire information related to quality of the yarn travelling from the yarn supply bobbin toward the package and a controller configured to control a winding speed at which the yarn is wound from the yarn supply bobbin.
  • the controller controls the winding speed, based on a quality index of the yarn based on the information related to quality acquired by the acquisition unit and a preset index threshold range related to quality of the yarn, such that the quality index falls within the index threshold range.
  • the automatic winder includes an acquisition unit configured to acquire information related to quality of the yarn.
  • the controller controls the winding speed, based on a quality index of the yarn based on the information related to quality acquired by the acquisition unit and a preset index threshold range related to quality of the yarn, such that the quality index falls within the index threshold range.
  • yarn is wound such that the quality of yarn is within a certain range. In the automatic winder, therefore, changes in yarn quality in the middle of forming a package can be reduced.
  • the acquisition unit may acquire at least information about hairiness of the yarn.
  • the winding speed affects, in particular, the amount of hairiness of yarn.
  • the amount of hairiness has a large effect on the yarn quality.
  • at least information about hairiness is acquired by the acquisition unit as the information related to quality, and the winding speed is controlled such that the quality index falls within the index threshold range, whereby changes in yarn quality in the middle of forming a package can be reduced appropriately.
  • the acquisition unit may acquire information about a defect of the yarn.
  • a defect of yarn has a large effect on yarn quality.
  • information about a detect of yarn is acquired by the acquisition unit as the information related to quality, and the winding speed is controlled such that the quality index falls within the index threshold range, whereby changes in yarn quality in the middle of forming a package can be reduced appropriately.
  • the automatic winder may further include a receiver configured to receive spinning information transmitted from a spinning frame configured to form the yarn supply bobbin.
  • the spinning information includes information about a processing status of forming the yarn supply bobbin.
  • the controller may set a target value of the winding speed based on the spinning information received by the receiver and may change the winding speed toward the target value such that the quality index falls within the index threshold range.
  • the yarn quality may change with a change in winding speed.
  • controlling the winding speed such that the quality index falls within the index threshold range is particularly effective in reducing changes in yarn quality in the middle of forming a package.
  • the automatic winder may further include an input unit configured to accept input of an upper limit value and a lower limit value of the winding speed.
  • the controller may control the winding speed within a range of the upper limit value and the lower limit value. In this configuration, the winding speed is set within a range of the upper limit value and the lower limit value. This configuration can prevent control unintended by the operator.
  • the controller may calculate a margin based on the quality index and the index threshold range and may calculate the amount of change in the winding speed based on the margin to control the winding speed in accordance with the amount of change in the winding speed.
  • the winding speed can be controlled such that the quality index falls within the index threshold range.
  • the controller may increase the amount of change in the winding speed as the margin is higher and may reduce the amount of change in the winding speed as the margin is lower.
  • the degree of margin is high when the difference between the quality index and the index threshold is large, and the degree of margin is small when the difference between the quality index and the index threshold is small.
  • the amount of change in winding speed is therefore adjusted in accordance with the degree of margin, whereby yarn can be wound at an appropriate winding speed in accordance with the quality index.
  • the acquisition unit may be a yarn monitoring device having a slit to allow the yarn to pass through to monitor a state of the yarn passing through the slit. In this configuration, information related to quality of yarn can be acquired accurately.
  • the automatic winder may further include another acquisition unit different from the yarn monitoring device.
  • the controller may control the winding speed based on information acquired by the yarn monitoring device and information acquired by the different acquisition unit.
  • the information acquired by the different acquisition unit may be at least one of information about winding tension with which the yarn is wound into the package, information about vibration, and information about a traverse defect related to traverse of the yarn.
  • the winding speed even more suitable for the yarn quality can be set.
  • the winding speed suitable for the quality as a package can also be set.
  • a yarn winding system includes a spinning frame configured to form a yarn supply bobbin and an automatic winder configured to wind yarn from the yarn supply bobbin to form a package.
  • the spinning frame includes a generator configured to generate spinning information including information about a processing status of forming the yarn supply bobbin and a transmitter configured to transmit the spinning information generated by the generator to the automatic winder.
  • the automatic winder includes a receiver configured to receive the spinning information, an acquisition unit configured to acquire information related to quality of the yarn travelling from the yarn supply bobbin toward the package, and a controller configured to control a winding speed at which the yarn is wound from the yarn supply bobbin.
  • the controller sets a target value of the winding speed based on the spinning information received by the receiver and changes the winding speed toward the target value, based on a quality index of the yarn based on the information related to quality acquired by the acquisition unit and a preset index threshold range related to quality of the yarn, such that the quality index falls within the index threshold range.
  • the automatic winder includes an acquisition unit configured to acquire information related to quality of the yarn.
  • the controller controls the winding speed, based on a quality index of the yarn based on the information related to quality acquired by the acquisition unit and a preset index threshold range related to quality of the yarn, such that the quality index falls within the index threshold range.
  • the yarn quality may change with a change in winding speed.
  • the winding speed of the automatic winder is controlled based on a processing status of forming a yarn supply bobbin in the spinning frame, the winding speed is controlled such that the quality index falls within the index threshold range, whereby changes in yarn quality in the middle of forming a package can be reduced.
  • a yarn winding method is performed by a spinning frame configured to form a yarn supply bobbin and an automatic winder configured to wind yarn from the yarn supply bobbin to form a package.
  • the yarn winding method includes a generation step of generating spinning information including information about a processing status of forming the yarn supply bobbin, in the spinning frame, a transmission step of transmitting the spinning information generated at the generation step to the automatic winder, in the spinning frame, a reception step of receiving the spinning information, in the automatic winder, an acquisition step of acquiring information related to quality of the yarn travelling from the yarn supply bobbin to the package, in the automatic winder, and a control step of controlling a winding speed at which the yarn is wound from the yarn supply bobbin, in the automatic winder.
  • a target value of the winding speed is set based on the spinning information received at the reception step, and the winding speed is changed toward the target value, based on a quality index of the yarn based on the information related to quality acquired at the acquisition step and a preset index threshold range related to quality of the yarn, such that the quality index falls within the index threshold range.
  • the yarn winding method In the yarn winding method according to an aspect of the present invention, information related to quality of the yarn is acquired in the automatic winder. In the control step in the automatic winder, the winding speed is controlled, based on a quality index of the yarn based on the information related to quality acquired at the acquisition step and a preset index threshold range related to quality of the yarn, such that the quality index falls within the index threshold range.
  • the yarn quality when the winding speed of the automatic winder is controlled based on a processing status of forming a yarn supply bobbin in the spinning frame, the yarn quality may change with a change in winding speed.
  • the winding speed of the automatic winder is controlled based on a processing status of forming a yarn supply bobbin in the spinning frame, the winding speed is controlled such that the quality index falls within the index threshold range, whereby changes in yarn quality in the middle of forming a package can be reduced.
  • changes in yarn quality in the middle of forming a package can be reduced.
  • a yarn winding system 1 includes a roving frame 2, a spinning frame 3, and an automatic winder 4.
  • the roving frame 2 generates roved yarn from a sliver and winds the roved yarn to form a roved yarn bobbin.
  • the spinning frame 3 generates yarn from the roved yarn and winds the generated yarn to form a yarn supply bobbin 11.
  • the automatic winder 4 winds yarn from the yarn supply bobbin 11 to form a package.
  • the automatic winder 4 has a bobbin transfer device 5.
  • the bobbin transfer device 5 transfers a yarn supply bobbin 11 from the spinning frame 3 to the automatic winder 4 and transfers an empty bobbin 12 (a bobbin having no yarn wound thereon) from the automatic winder 4 to the spinning frame 3.
  • the bobbin transfer device 5 is provided with a bobbin preparation device 7, a residual yarn processing device (not shown), and the like.
  • the bobbin preparation device 7 performs preparation for the automatic winder 4 to process yarn on a yarn supply bobbin 11. When yarn is left on a bobbin 12 ejected from the yarn supply bobbin 11, the residual yarn processing device removes the left yarn to produce an empty bobbin 12.
  • the bobbin transfer device 5 has a complicated guide path with many curves.
  • the roving frame 2 includes a control device 21 configured to control the operation of the roving frame 2 and a plurality of roving units 22 configured to form roved yarn bobbins.
  • the control device 21 has a display unit 21a such as a display and an operation unit 21b such as an input key.
  • the display unit 21a displays, for example, the operating status of each roving unit 22.
  • the operation unit 21b is used by the operator to make settings of the operating condition of each roving unit 22.
  • the spinning frame 3 includes a control device 31 configured to control the operation of the spinning frame 3 and a plurality of spinning units 32 configured to form yarn supply bobbins 11.
  • the control device 31 has a display unit 31a such as a display and an operation unit 31b such as an input key.
  • the display unit 31a displays, for example, the operating status of each spinning unit 32.
  • the operation unit 31b is used by the operator to make settings of the operating condition of each spinning unit 32.
  • the spinning unit 32 has a drafting device 33 and a twisting device 34.
  • the drafting device 33 has a back roller pair 33a, a middle roller pair 33b, and a front roller pair 33c.
  • the back roller pair 33a, the middle roller pair 33b, and the front roller pair 33c are each configured with a bottom roller and a top roller.
  • An apron belt is looped around each roller of the middle roller pair 33b.
  • the back roller pair 33a, the middle roller pair 33b, and the front roller pair 33c are rotated at a predetermined speed ratio, whereby the roved yarn 13 unwound from a roved yarn bobbin is drafted.
  • the twisting device 34 has a hollow guide shaft 35, a ring rail 36, a ring 37, and a traveller 38.
  • the hollow guide shaft 35 holds a bottom portion 12a of the bobbin 12 with a top portion 12b of the bobbin 12 facing upward and rotates the bobbin 12.
  • the ring rail 36 is movable in the axial direction of the bobbin 12.
  • the ring 37 is fixed to the ring rail 36.
  • the traveller 38 is supported by the ring 37 and movable along the ring 37.
  • the twisting device 34 the roved yarn 13 drafted in the drafting device 33 is inserted into a gap between the ring 37 and the traveller 38, and an end of the roved yarn 13 is fixed to the bobbin 12.
  • the hollow guide shaft 35 rotates the bobbin 12, so that the traveller 38 moves along the ring 37 so as to be pulled by the roved yarn 13.
  • the ring rail 36 gradually moves from the bottom portion 12a side to the top portion 12b side while reciprocating in a predetermined range along the axial direction of the bobbin 12.
  • the rotation of the traveller 38 lags behind the rotation of the bobbin 12, whereby the roved yarn 13 is twisted to produce yarn 14.
  • the yarn 14 is then wound onto the bobbin 12 to form a yarn supply bobbin 11.
  • the spinning frame 3 having a plurality of spinning units 32 configured as described above is configured as a simultaneous doffing type. More specifically, the spinning frame 3 is stocked with a plurality of empty bobbins 12 transferred by the bobbin transfer device 5 from the automatic winder 4 and simultaneously sets the empty bobbins 12 in the spinning units 32 to simultaneously start winding of yarn. When winding of yarn is finished and a yarn supply bobbin 11 is formed in each spinning unit 32, the spinning frame 3 simultaneously doffs all the yarn supply bobbins 11. The spinning frame 3 then takes out empty bobbins 12 in stock in the meantime from the tray 6, simultaneously sets the empty bobbins 12 in the spinning units 32, and simultaneously sets the doffed yarn supply bobbins 11 in the tray 6 instead.
  • the automatic winder 4 includes a control device (controller) 41 configured to control the operation of the automatic winder 4, a plurality of winder units 42 configured to form packages, and the bobbin transfer device 5.
  • the control device 41 has a display unit 41a such as a display and an operation unit (input unit) 41b such as an input key.
  • the display unit 41a displays, for example, the operating status of each winder unit 42.
  • the operation unit 41b is used by the operator to make settings of the operating condition of each winder unit 42.
  • the control device 41 also controls the operation of the bobbin transfer device 5.
  • the winder unit 42 has a winding device 43, a tension applying device 44, a yarn monitoring device (acquisition unit) 45, an upper yarn catching device 46, a lower yarn catching device 47, and a yarn joining device 48.
  • the winding device 43 includes a cradle 43a and a winding drum 43b.
  • the cradle 43a supports a package 15.
  • the winding drum 43b has a traverse groove and rotates the package 15 while allowing the yarn 14 to traverse.
  • the tension applying device 44 applies a predetermined tension to yarn 14 travelling from the yarn supply bobbin 11 toward the package 15.
  • the winding device 43 may be configured such that the winding drum 43b does not allow yarn 14 to traverse. In this configuration, the winding drum 43b does not have a traverse groove, and a traverse mechanism (for example, a traverse arm and a motor) maybe provided separately from the winding drum 43b so that the traverse mechanism may allow yarn 14 to traverse.
  • a traverse mechanism for example, a traverse arm and a motor
  • the yarn monitoring device 45 monitors a state of yarn 14 travelling through a yarn path (travelling from the yarn supply bobbin 11 toward the package 15).
  • the yarn monitoring device 45 monitors a state of yarn 14 to acquire information related to the quality of yarn 14, such as a hairiness index of yarn 14 (information about hairiness), information about the thickness irregularity of yarn 14, the IPI value of yarn 14 (the counted numbers of extremely thick portions, extremely thin portions, and neps (snags) per unit length of yarn 14), the number of defects of yarn 14, the number of remaining defects, and the number of cuts (the number of yarn breakages) .
  • the information about the thickness irregularity of yarn 14, the IPI value of yarn 14, the number of defects of yarn 14, and the number of remaining defects are information about a defect of yarn 14.
  • the yarn monitoring device 45 has a slit to allow yarn 14 to pass through in the yarn path of yarn 14 and monitors the yarn 14 passing through the slit with a not-shown optical sensor.
  • the yarn monitoring device 45 outputs information related to quality (hereinafter may be referred to as "quality information") to the control device 41.
  • quality information information related to quality
  • a cutter (not shown) is provided for cutting yarn 14. The yarn monitoring device 45 actuates the cutter when detecting a defect of yarn 14.
  • the upper yarn catching device 46 catches a yarn end of yarn 14 on the package 15 side and guides the yarn end to the yarn joining device 48.
  • the lower yarn catching device 47 catches a yarn end of yarn 14 on the yarn supply bobbin 11 side and guides the yarn end to the yarn joining device 48.
  • the yarn joining device 48 joins the yarn ends guided by the upper yarn catching device 46 and the lower yarn catching device 47.
  • the spinning frame 3 transmits spinning information (which will be detailed later) to the automatic winder 4 and the automatic winder 4 controls the operation of the automatic winder 4 based on spinning information and quality information.
  • the spinning frame 3 includes the control device (generator) 31 and a transmitter 31c, as functional elements for embodying the mechanism above.
  • the automatic winder 4 includes the control device (controller) 41, the winder units 42, and a receiver 41c.
  • the control device 31 is an electronic control unit including a central processing unit (CPU), a read only memory (ROM), and a random access memory (RAM) .
  • the control device 31 loads a program stored in the ROM to the RAM and executes the program in the CPU to perform a variety of control.
  • the control device 31 may be configured with a plurality of electronic control units.
  • the control device 31 functions as a generator configured to generate spinning information including information about the processing status of forming a yarn supply bobbin 11.
  • processing status information is, for example, information indicating the remaining time before the yarn supply bobbins 11 are simultaneously doffed in a plurality of spinning units 32 by simultaneous doffing, and information indicating the number of spinning units 32 that are spinning.
  • the control device 31 can obtain the processing status information as described above, for example, by monitoring the operating status of each spinning unit 32 and referring to the settings about the operation of each spinning unit 32.
  • the control device 31 generates data including the above-noted processing status information as spinning information and transmits the generated data to the automatic winder 4 through the transmitter 31c.
  • the control device 31 generates and transmits spinning information to the automatic winder 4 at any timing.
  • the control device 31 periodically generates and transmits spinning information to the automatic winder 4 at predetermined intervals. This configuration enables the automatic winder 4 to timely grasp the processing status of the spinning frame 3 and enables appropriate setting of the winding speed of the winder unit 42 each time (detailed later).
  • the transmitter 31c transmits the spinning information generated by the control device 31 to the automatic winder 4.
  • the transmission by the transmitter 31c may be wired through a cable or the like or may be wireless.
  • radio waves, infrared radiation, or light may be employed as a transmission medium.
  • FIG. 4 illustrates the transmitter 31c as an element separate from the control device 31, the transmitter 31c may be included in the control device 31. More specifically, the transmitter 31c may be a communication function embedded in the control device 31.
  • the receiver 41c receives the spinning information transmitted from the spinning frame 3.
  • the reception by the receiver 41c may be wired through a cable or the like or may be wireless.
  • radio waves, infrared radiation, or light may be employed as a transmission medium.
  • FIG. 4 illustrates the receiver 41c as an element separate from the control device 41, the receiver 41c may be included in the control device 41. More specifically, the receiver 41c may be a communication function embedded in the control device 41.
  • the control device 41 is an electronic control unit including a CPU, a ROM, and a RAM.
  • the control device 41 loads a program stored in the ROM to the RAM and executes the program in the CPU to perform a variety of control.
  • the control device 41 may be configured with a plurality of electronic control units.
  • the control device 41 controls the operation of the automatic winder 4 based on the spinning information received by the receiver 41c. Specifically, the control device 41 determines the operation of each winder unit 42 based on the spinning information and timely transmits a control signal indicating the determined operation to each winder unit 42 to control the operation of the winder unit 42.
  • the control device 41 determines the winding speed at which each winder unit 42 winds yarn from a yarn supply bobbin 11, based on the processing status information included in the spinning information, and controls the operation of each winder unit 42 such that yarn is wound from the yarn supply bobbin 11 at the determined winding speed.
  • the control device 41 calculates the present consumption rate of yarn supply bobbins 11 in the automatic winder 4 (the number of yarn supply bobbins 11 consumed in the automatic winder 4 per unit time), based on the supply pace of yarn supply bobbins 11 from the spinning frame 3 to the automatic winder 4 (the ejection pace of bobbins 12 from the automatic winder 4 to the spinning frame 3) .
  • the control device 41 calculates the number of yarn supply bobbins 11 (hereinafter referred to as the number of remaining bobbins) held in the spinning frame 3 (waiting for being supplied to the automatic winder 4 and wound by the automatic winder 4).
  • control device 41 calculates the number of remaining bobbins by subtracting the number of supplied or ejected bobbins from the number of spinning units 32 ([the number of spinning units 32] - [the number of supplied or ejected bobbins]).
  • the control device 41 calculates the consumption rate necessary for consuming the yarn supply bobbins 11 held in the spinning frame 3, based on the remaining time obtained from the processing status information transmitted from the spinning frame 3 (the remaining time before the yarn supply bobbins 11 are simultaneously doffed in a plurality of spinning units 32 by simultaneous doffing) and the number of remaining bobbins .
  • the control device 41 calculates a target winding speed (a target value of the winding speed), based on the present consumption rate and the necessary consumption rate.
  • the control device 41 determines whether to change the winding speed in the automatic winder 4, based on the target winding speed and the winding speed of the automatic winder 4 at present.
  • the control device 41 adjusts the winding speed such that the winding speed attains the target winding speed.
  • the initial value of the target winding speed may be set through input by the operator or may be automatically set based on, for example, the lot of yarn 14.
  • the control device 41 changes the winding speed of each winder unit 42 based on the quality information output from the yarn monitoring device 45 and controls the operation of each winder unit 42 such that yarn is wound from the yarn supply bobbin 11 at the changed winding speed. That is, the control device 41 sets the target winding speed based on the processing status information and changes the winding speed based on the quality information.
  • the control device 41 acquires a quality index of yarn 14, based on the quality information.
  • the quality index is an index indicating the quality of yarn 14 and is set based on a variety of information included in the quality information. Specifically, the control device 41 calculates the quality index of moving average per unit winding length of yarn 14, based on the quality information.
  • the quality index is, for example, a numerical value.
  • the control device 41 calculates a margin, based on the quality index and a preset index threshold range related to the quality of yarn 14.
  • the index threshold range may be set through input by the operator or may be automatically set, for example, based on the lot of yarn 14.
  • the control device 41 calculates a margin, based on the difference between the quality index and the index threshold.
  • the degree of margin is large when the difference between the quality index and the index threshold is large, and the degree of margin is small when the difference between the quality index and the index threshold is small.
  • the control device 41 determines whether it is possible to change the winding speed based on the margin.
  • the margin is equal to or greater than a predetermined degree, that is, when it is expected that the quality index falls within the index threshold range after the winding speed is changed, the control device 41 determines that it is possible to change the winding speed.
  • the margin is equal to or smaller than a predetermined degree, that is, it is expected that the quality index falls outside the index threshold range after the winding speed is changed, the control device 41 determines that it is impossible to change the winding speed.
  • the spinning frame 3 generates and transmits spinning information (generation step, transmission step).
  • the receiver 41c of the automatic winder 4 receives the spinning information transmitted from the spinning frame 3 (step S01, reception step).
  • the spinning information received by the receiver 41c is forwarded to the control device 41.
  • the control device 41 then performs a target winding speed calculating process of calculating a target winding speed of the automatic winder 4, based on the processing status information included in the spinning information (step S02).
  • step S02 The target winding speed calculating process (step S02) is described in detail with reference to FIG. 6 .
  • the control device 41 calculates the present consumption rate of yarn supply bobbins 11, based on the number of empty bobbins 12 ejected per unit time (step S11).
  • the control device 41 then calculates the number of remaining yarn supply bobbins 11, based on the number of spinning units 32 and the number of yarn supply bobbins 11 supplied (or empty bobbins 12 ejected) (step S12).
  • control device 41 calculates the consumption rate necessary for consuming yarn supply bobbins 11 held in the spinning frame 3, based on the remaining time obtained from the processing status information transmitted from the spinning frame 3 and the number of remaining bobbins (stepS13).
  • the control device 41 calculates the target winding speed, based on the present consumption rate and the necessary consumption rate (step S14).
  • the control device 41 determines whether it is necessary to change the winding speed (step S03). If it is determined that it is necessary to change the winding speed, the control device 41 performs a winding speed changing process (step S04). If it is not determined that it is necessary to change the winding speed, the control device 41 terminates the process.
  • step S04 The speed changing process (step S04) is described with reference to FIG. 7 .
  • the yarn monitoring device 45 acquires information related to quality of yarn 14 (step S21, acquisition step) .
  • the control device 41 calculates a margin, based on the quality index of yarn 14 based on the information related to quality of yarn 14 that is output from the yarn monitoring device 45 and the preset index threshold range related to quality of yarn 14 (step S22). Subsequently, the control device 41 determines whether it is possible to change the winding speed based on the margin (step S23).
  • step S24 the control device 41 calculates the amount of change in winding speed based on the margin. Specifically, if the margin is high, the control device 41 sets the amount of change in winding speed to be large. If the margin is low, the control device 41 sets the amount of change in winding speed to be small. Upon calculating the amount of change in winding speed, the control device 41 changes the winding speed in accordance with the amount of change (step S25, control step). That is, the control device 41 controls the winding speed such that the quality index falls within the index threshold range.
  • the control device 41 determines whether the changed winding speed has reached the target winding speed (step S26). If it is determined that the changed winding speed has reached the target winding speed, the control device 41 terminates the process. If it is not determined that the changed winding speed has reached the target speed, the control device 41 returns to the process at step S21.
  • the automatic winder 4 includes the yarn monitoring device 45 that acquires information related to quality of yarn 14 travelling from the yarn supply bobbin 11 toward the package 15.
  • the control device 41 controls the winding speed, based on the quality index of yarn 14 based on the information related to quality acquired by the yarn monitoring device 45 and a preset index threshold range related to the quality of yarn 14, such that the quality index falls within the index threshold range.
  • the yarn monitoring device 45 of the automatic winder 4 acquires at least information about hairiness of yarn 14.
  • the winding speed affects, in particular, the amount of hairiness of yarn 14.
  • the amount of hairiness therefore has a large effect on yarn quality.
  • a change in the amount of hairiness leads to a change in yarn quality.
  • at least information about hairiness is acquired by the yarn monitoring device 45 as the information related to quality, and the winding speed is controlled such that the quality index falls within the index threshold range, whereby changes in yarn quality in the middle of forming a package 15 can be reduced appropriately.
  • the spinning frame 3 generates spinning information including information about the processing status of forming a yarn supply bobbin 11 and transmits the spinning information to the automatic winder 4.
  • the automatic winder 4 includes the receiver 41c configured to receive the spinning information.
  • the control device 41 of the automatic winder 4 sets a target winding speed based on the spinning information received by the receiver 41c and changes the winding speed such that the quality index falls within the index threshold range.
  • the yarn quality may change with a change in winding speed.
  • controlling the winding speed such that the quality index falls within the index threshold range is particularly effective in reducing changes in yarn quality in the middle of forming a package 15.
  • the target winding speed is set (the winding speed is increased or decreased) based on the spinning information, changes in yarn quality can be reduced while energy saving, longevity of parts and devices, improvement in production efficiency, and the like are well balanced.
  • the control device 41 of the automatic winder 4 calculates a margin based on the quality index and the index threshold range and calculates the amount of change in winding speed based on the margin to control the winding speed in accordance with the amount of change in winding speed.
  • the winding speed can be controlled such that the quality index falls within the index threshold range.
  • control device 41 of the automatic winder 4 may increase the amount of change in winding speed as the margin is higher and may reduce the amount of change in winding speed as the margin is lower.
  • the degree of margin is high when the difference between the quality index and the index threshold is large, and the degree of margin is small when the difference between the quality index and the index threshold is small.
  • the amount of change in winding speed is therefore adjusted in accordance with the margin, whereby yarn can be wound at an appropriate winding speed in accordance with the quality index.
  • the yarn monitoring device 45 acquires a hairiness index of yarn 14, information about the thickness irregularity of yarn 14, the IPI value, the number of defects of yarn 14, the number of remaining defects, the number of cuts (the number of yarn breakages), and the like, as the information related to quality of yarn 14 (quality information), as an example.
  • information about winding tension with which yarn 14 is wound into a package 15 may be additionally used as the information related to quality of yarn 14.
  • the winding tension can be detected, for example, by a tension sensor (acquisition unit, different acquisition unit) provided on the yarn path between the tension applying device 44 and the winding device 43. In this way, more information related to yarn quality can be used to set the winding speed more suitable for the yarn quality.
  • At least one of the hairiness index, information about thickness irregularity, the IPI value, the number of yarn defects, the number of remaining defects, the number of cuts (the number of yarn breakages), and the winding tension may be used as the information related to yarn quality.
  • the control device 41 may control the winding speed, based on information about yarn quality and information other than yarn quality (for example, information about quality as a package). With this configuration, the winding speed suitable for not only yarn itself but also the quality as a package can be set. More specifically, when a take-up tube (tube serving as the core of a package) has a poor shape (not a perfect circle), the take-up tube may be broken if vibration is large. In addition, the traverse defect related to traverse of yarn 14 affects the shape of a package and/or the yarn unwindability.
  • the winding speed suitable for the quality of package therefore can be set by controlling the winding speed considering information of vibration and/or the number of traverse defects.
  • wear on parts (for example, bearing) of the cradle holding a package can be reduced.
  • parts (for example, bearing) of the cradle holding a package may be worn earlier, and this wear can be reduced.
  • the vibration of the winder unit 42 can be detected, for example, by an acceleration sensor (different acquisition unit) provided at an appropriate place in the winder unit 42 (for example, installed in a unit controller described later).
  • the traverse defect can be detected by a traverse sensor (different acquisition unit) provided in the winding device 43 (for example, provided in the vicinity of the winding drum 43b or the traverse arm). More specifically, the control device 41 may control the winding speed, based on information about yarn quality acquired by the yarn monitoring device 45 and information acquired by the acquisition unit different from the yarn monitoring device 45.
  • the information acquired by the different acquisition unit may be information about yarn quality or may be information other than yarn quality.
  • control device 41 of the automatic winder 4 controls the operation of each winder unit 42, as an example.
  • a controller (unit controller) configured to control the operation of the winder unit 42 may be provided for each winder unit 42.
  • control device 41 has the display unit 41a and the operation unit 41b, as an example.
  • control device may have a touch panel display functioning as a display unit and an operation unit.
  • the display unit 21a and the operation unit 21b in the control device 21 of the roving frame 2 and the display unit 31a and the operation unit 31b in the control device 31 of the spinning frame 3 may also be touch panel displays.
  • the yarn monitoring device 45 monitors yarn 14 passing through the slit with an optical sensor, as an example.
  • the yarn monitoring device may monitor yarn 14 passing through the slit with a capacitive sensor.
  • a cutter is provided in the vicinity of the yarn monitoring device 45, as an example.
  • the yarn monitoring device may include a cutter.
  • the control device 41 sets a target winding speed and adjusts the winding speed such that the winding speed attains the target winding speed, as an example.
  • the control device 41 of the automatic winder 4 may return the winding speed to the one before the quality index falls outside the index threshold range.
  • the control device 41 may set the winding speed to a preset speed. In this configuration, the speed is set such that the quality index falls within the index threshold range, whereby the winding speed is kept such that the quality index does not fall outside the index threshold range.
  • changes in yarn quality in the middle of forming a package 15 can be reduced.
  • input of an upper limit value and a lower limit value of winding speed may be accepted in the operation unit 41b of the automatic winder 4.
  • the control device 41 of the automatic winder 4 may automatically set the lower limit value and the upper limit value, based on the winding speed.
  • the control device 41 adds and subtracts a predetermined value to/from the reference winding speed to set the upper limit value and the lower limit value.
  • the control device 41 sets the upper limit value to "1700 m/min” and the lower limit value to "1300 m/min", using "200 m/min” as a predetermined value.
  • the control device 41 of the automatic winder 4 controls the winding speed within a range of the upper limit value and the lower limit value. In this configuration, the winding speed is set within a range of the upper limit value and the lower limit value.
  • the target winding speed calculated at step S14 in the target winding speed calculating process exceeds the upper limit value (or falls below the lower limit value)
  • the target winding speed may be corrected to the upper limit value (or the lower limit value) (the upper limit value or the lower limit value may be reset as a target winding speed).
  • the winding speed of the automatic winder is appropriately controlled based on the processing status of forming a yarn supply bobbin in the spinning frame (for example, the supply timing of a yarn supply bobbin transferred from the spinning frame to the automatic winder) .
  • the winding speed may be a speed unintended by the operator. The operator then may feel something wrong.
  • the automatic winder winds yarn from a yarn supply bobbin to form a package.
  • the automatic winder includes a controller configured to control a winding speed at which the yarn is wound from the yarn supply bobbin and an input unit configured to accept input of an upper limit value and a lower limit value of the winding speed.
  • the controller controls the winding speed within a range of the upper limit value and the lower limit value.
  • An automatic winder winds yarn from a yarn supply bobbin to form a package.
  • the automatic winder includes a controller configured to control a winding speed at which the yarn is wound from the yarn supply bobbin and an input unit configured to accept input of a reference winding speed serving as a reference of the winding speed.
  • the controller sets an upper limit value and a lower limit value of the winding speed based on the reference winding speed input in the input unit and controls the winding speed within a range of the upper limit value and the lower limit value.
  • the controller controls the winding speed within a range of the upper limit value and the lower limit value.
  • the upper limit value and the lower limit value are input by the operator or set based on a value input by the operator. In the automatic winder, therefore, control unintended by the operator can be prevented.

Claims (11)

  1. Automatische Haspel (4), die dazu konfiguriert ist, Garn (14) von einer Garnzufuhrspule (11) zu wickeln, um einen Wickelkörper (15) zu bilden, wobei die automatische Haspel (4) Folgendes umfasst:
    eine Erhebungseinheit (45), die dazu konfiguriert ist, Informationen bezüglich Qualität des Garnes (14), das von der Garnzufuhrspule (11) in Richtung des Wickelkörpers (15) läuft, zu erheben; und
    eine Steuereinheit (41), die dazu konfiguriert ist, eine Wickelgeschwindigkeit, mit der das Garn (14) von der Garnzufuhrspule (11) gewickelt wird, zu steuern, dadurch gekennzeichnet, dass
    die Steuereinheit (41) die Wickelgeschwindigkeit basierend auf einem Qualitätsindex des Garnes (14), der auf den Informationen bezüglich Qualität basiert, die von der Erhebungseinheit (45) erhoben werden, und einem voreingestellten Indexschwellenwertbereich bezüglich Qualität des Garnes (14) derart steuert, dass der Qualitätsindex in den Indexschwellenwertbereich fällt.
  2. Automatische Haspel (4) nach Anspruch 1, wobei die Erhebungseinheit (45) mindestens Informationen über Haarigkeit des Garnes (14) erhebt.
  3. Automatische Haspel (4) nach Anspruch 1 oder 2, wobei die Erhebungseinheit (45) mindestens Informationen über einen Defekt des Garnes erhebt (14).
  4. Automatische Haspel (4) nach einem der Ansprüche 1 bis 3, die weiter einen Empfänger (41c) umfasst, der dazu konfiguriert ist, Spinninformationen zu empfangen, die von einer Spinnmaschine (3) übertragen werden, die dazu konfiguriert ist, die Garnzufuhrspule (11) zu bilden, wobei die Spinninformationen Informationen über einen Verarbeitungsstatus des Bildens der Garnzufuhrspule (11) beinhalten, wobei
    die Steuereinheit (41) einen Zielwert der Wickelgeschwindigkeit basierend auf den Spinninformationen, die von dem Empfänger (41c) empfangen werden, einstellt und die Wickelgeschwindigkeit in Richtung des Zielwerts derart ändert, dass der Qualitätsindex in den Indexschwellenwertbereich fällt.
  5. Automatische Haspel (4) nach einem der Ansprüche 1 bis 4, die weiter eine Eingabeeinheit (41b) umfasst, die dazu konfiguriert ist, Eingabe eines oberen Grenzwerts und eines unteren Grenzwerts der Wickelgeschwindigkeit zu akzeptieren, wobei
    die Steuereinheit (41) die Wickelgeschwindigkeit innerhalb eines Bereichs des oberen Grenzwerts und des unteren Grenzwerts steuert.
  6. Automatische Haspel (4) nach einem der Ansprüche 1 bis 5, wobei die Steuereinheit (41) eine Marge basierend auf dem Qualitätsindex und dem Indexschwellenwertbereich berechnet, und die Änderungsmenge der Wickelgeschwindigkeit basierend auf der Marge berechnet, um die Wickelgeschwindigkeit gemäß der Änderungsmenge der Wickelgeschwindigkeit zu steuern.
  7. Automatische Haspel (4) nach Anspruch 6, wobei die Steuereinheit (41) die Änderungsmenge der Wickelgeschwindigkeit steigert, während die Marge höher ist, und die Änderungsmenge der Winkelgeschwindigkeit verringert, während die Marge niedriger ist.
  8. Automatische Haspel (4) nach einem der Ansprüche 1 bis 7, wobei die Erhebungseinheit (45) eine Garnüberwachungsvorrichtung ist, die einen Schlitz aufweist, um es dem Garn (14) zu erlauben durchzugehen, wobei die Garnüberwachungsvorrichtung dazu konfiguriert ist, einen Zustand des Garnes (14), das durch den Schlitz durchgeht, zu überwachen.
  9. Automatische Haspel (4) nach Anspruch 8, die weiter eine andere Erhebungseinheit (45), die von der Garnüberwachungsvorrichtung unterschiedlich ist, umfasst, wobei
    die Steuereinheit (41) die Wickelgeschwindigkeit basierend auf Informationen steuert, die von der Garnüberwachungsvorrichtung erhoben werden, und von Informationen, die von der unterschiedlichen Erhebungseinheit (45) erhoben werden, und
    wobei die Informationen, die von der unterschiedlichen Erhebungseinheit (45) erhoben werden, mindestens eine einer Information über Wickelspannung, mit der das Garn (14) in den Wickelkörper (15) gewickelt wird, einer Information über Vibration, und einer Information über einen Querfehler in Bezug auf die Querbewegung des Garnes ist.
  10. Garnwickelsystem, das eine Spinnmaschine (3) umfasst, die dazu konfiguriert ist, eine Garnzufuhrspule (11) zu bilden, und eine automatische Haspel (4), die dazu konfiguriert ist, Garn (14) von der Garnzufuhrspule (11) zu wickeln, um einen Wickelkörper (15) zu bilden,
    wobei die Spinnmaschine (3) Folgendes beinhaltet
    einen Generator, der dazu konfiguriert ist, Spinninformationen zu generieren, die Informationen über einen Verarbeitungsstatus des Bildens der Garnzufuhrspule (11) beinhalten, und
    einen Sender (31c), der dazu konfiguriert ist, die Spinninformationen, die von dem Generator generiert werden, zu der automatischen Haspel (4) zu übertragen,
    wobei die automatische Haspel (4) Folgendes beinhaltet
    einen Empfänger (41c), der dazu konfiguriert ist, die Spinninformationen zu empfangen,
    eine Erhebungseinheit (45), die dazu konfiguriert ist, Informationen bezüglich Qualität des Garnes (14), das von der Garnzufuhrspule (11) in Richtung des Wickelkörpers (15) läuft, zu erheben, und
    eine Steuereinheit (41), die dazu konfiguriert ist, eine Wickelgeschwindigkeit, mit der das Garn von der Garnzufuhrspule (11) aufgewickelt wird, zu steuern, dadurch gekennzeichnet, dass
    die Steuereinheit (41) einen Zielwert der Wickelgeschwindigkeit basierend auf den Spinninformationen, die von dem Empfänger (41c) empfangen werden, einstellt und die Wickelgeschwindigkeit in Richtung des Zielwerts basierend auf einem Qualitätsindex des Garnes, der auf den Informationen bezüglich Qualität basiert, die von der Erhebungseinheit (45) erhoben werden, und einem voreingestellten Indexschwellenwertbereich bezüglich Qualität des Garnes derart ändert, dass der Qualitätsindex in den Indexschwellenwertbereich fällt.
  11. Garnwickelverfahren, das von einer Spinnmaschine (3) durchgeführt wird, die dazu konfiguriert ist, eine Garnzufuhrspule (11) zu bilden, und eine automatische Haspel (4), die dazu konfiguriert ist, Garn (14) von der Garnzufuhrspule (11) zu wickeln, um einen Wickelkörper (15) zu bilden, wobei das Garnwickelverfahren Folgendes umfasst:
    einen Generierungsschritt zum Generieren von Spinninformationen, die Informationen über einen Verarbeitungsstatus des Bildens der Garnzufuhrspule (11) in der Spinnmaschine (3) beinhalten;
    einen Übertragungsschritt zum Übertragen der Spinninformationen, die bei dem Generierungsschritt generiert werden, an die automatische Haspel (4) in der Spinnmaschine (3);
    einen Empfangsschritt zum Empfangen der Spinninformationen in der automatischen Haspel (4);
    einen Erhebungsschritt zum Erheben von Informationen bezüglich Qualität des Garnes, das von der Garnzufuhrspule (11) in Richtung des Wickelkörpers (15) in der automatischen Haspel (4) läuft; und
    einen Steuerschritt zum Steuern einer Wickelgeschwindigkeit, mit der das Garn (14) von der Garnzufuhrspule (11) in der automatischen Haspel (4) abgewickelt wird, dadurch gekennzeichnet, dass
    bei dem Steuerschritt ein Zielwert der Wickelgeschwindigkeit basierend auf den Spinninformationen, die bei dem Empfangsschritt empfangen werden, eingestellt wird, und die Wickelgeschwindigkeit in Richtung des Zielwerts basierend auf einem Qualitätsindex des Garnes (14), der auf den Informationen bezüglich Qualität basiert, die bei dem Erhebungsschritt erhoben werden, und einem voreingestellten Indexschwellenwert in Bezug auf Qualität des Garnes (14) derart geändert wird, dass der Qualitätsindex in den Indexschwellenwertbereich fällt.
EP17876272.0A 2016-12-02 2017-11-28 Automatische spulmaschine, garnwickelsystem und garnwickelverfahren Active EP3549893B1 (de)

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JP2016235043A JP2018090379A (ja) 2016-12-02 2016-12-02 自動ワインダ、糸巻取システム及び糸巻取方法
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CN110023218B (zh) 2022-04-12
JP2018090379A (ja) 2018-06-14

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