EP2952461B1 - Machine à filer à anneau avec appareil pour aider au percement de fil - Google Patents

Machine à filer à anneau avec appareil pour aider au percement de fil Download PDF

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Publication number
EP2952461B1
EP2952461B1 EP15169111.0A EP15169111A EP2952461B1 EP 2952461 B1 EP2952461 B1 EP 2952461B1 EP 15169111 A EP15169111 A EP 15169111A EP 2952461 B1 EP2952461 B1 EP 2952461B1
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EP
European Patent Office
Prior art keywords
yarn
ring type
worker
type spinning
spinning machine
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP15169111.0A
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German (de)
English (en)
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EP2952461A2 (fr
EP2952461A3 (fr
Inventor
Yusuke Mizuno
Yutaka Shinozaki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toyota Industries Corp
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Toyota Industries Corp
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Publication date
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Publication of EP2952461A3 publication Critical patent/EP2952461A3/fr
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H54/00—Winding, coiling, or depositing filamentary material
    • B65H54/02—Winding and traversing material on to reels, bobbins, tubes, or like package cores or formers
    • B65H54/22—Automatic winding machines, i.e. machines with servicing units for automatically performing end-finding, interconnecting of successive lengths of material, controlling and fault-detecting of the running material and replacing or removing of full or empty cores
    • B65H54/26—Automatic winding machines, i.e. machines with servicing units for automatically performing end-finding, interconnecting of successive lengths of material, controlling and fault-detecting of the running material and replacing or removing of full or empty cores having one or more servicing units moving along a plurality of fixed winding units
    • 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
    • D01H13/14—Warning or safety devices, e.g. automatic fault detectors, stop motions ; Monitoring the entanglement of slivers in drafting arrangements
    • D01H13/16—Warning or safety devices, e.g. automatic fault detectors, stop motions ; Monitoring the entanglement of slivers in drafting arrangements responsive to reduction in material tension, failure of supply, or breakage, of material
    • D01H13/1616—Warning or safety devices, e.g. automatic fault detectors, stop motions ; Monitoring the entanglement of slivers in drafting arrangements responsive to reduction in material tension, failure of supply, or breakage, of material characterised by the detector
    • D01H13/1666—Lighting or luminous devices making easier the setting of the breakage of yarns
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H15/00—Piecing arrangements ; Automatic end-finding, e.g. by suction and reverse package rotation; Devices for temporarily storing yarn during piecing
    • 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 ring type spinning machine comprising an apparatus for assisting in yarn piecing, and more particularly to a ring type spinning machine, such as ring fine spinning machine and ring twisting machine, comprising an apparatus for assisting in yarn piecing by guiding a worker attending to the ring type spinning machine to a position calling for yarn piecing service when a yarn break occurs.
  • Document JP H5-77166 U discloses a yarn break monitoring apparatus wherein a light-emitting device that emits light in response to a yarn break signal is provided for each of the spindles of a ring winding machine, the spindles are divided into a plurality of blocks or groups and an indicator lamp is provided for each of the blocks, and when a yarn break occurs at a spindle, the indicator lamp of the block to which the spindle belongs is turned on.
  • document JP S56-159318 A discloses an illumination lamp in a spinning machine room.
  • a plurality of working lamps is provided, one for each spindle of a spinning machine, above and along the length of the spinning machine.
  • the lamps are kept off or dimmed when no yarn break is detected by a yarn break detection device that is provided for each spindle and, if a yarn break is detected by the yarn break detection device at any spindle, its lamp is turned on or brightened for indication of the presence of a yarn break.
  • a worker is assigned to attend to a plurality of spinning machines and to provide yarn piecing and cleaning service for the ring type spinning machines.
  • the worker can identify the location of a yarn break at a distance that is close to the worker through the indicator lamp being turned on at the spindle calling for yarn piecing service.
  • the worker may not be able to recognize the indicator lamp from a long distance. Therefore, the worker needs to move around the ring type spinning machines to see if there is any indicator lamp being turned on. Such moving causes a waste of time and also may cause a delay in identification of a yarn break, thereby allowing the yarn break left unremedied for a long time.
  • spinning machines of recent years have a longer machine frame, which makes it harder for a worker to identify the illumination of the indicator lamp from a long distance.
  • the yarn break detection device disclosed in document JP S56-159318 A enables a worker to identify the position of the ring type spinning machine at which a yarn break has occurred by the illumination of the working lamp.
  • the worker for yarn piecing service may erroneously recognize the illumination of the lamp as a sign calling for the remedy of a yarn break and move to the illuminating lamp, which only lowers the yarn piecing operation efficiency.
  • Document DE 31 35 333 A1 discloses a method and a control device for a spinning installation, with a central data storage which is connected to workstations equipped with signal devices.
  • the data storage is connected to a retrieval device, in which attendance possibilities are stored in a ranked manner.
  • the particular workstation requiring attendance can be determined, according to the degree of damage, via a transmitter/receiver arrangement controlled by the retrieval device.
  • a service person is equipped with the receiver and is informed by means of information provided to the receiver which location is to be attended.
  • Document US 4 823 544 A discloses a process and apparatus for job control of servicing elements at a spinning installation with a plurality of servicing points, wherein existing servicing cases are detected and analyzed for correction control by a central control unit. Existing servicing cases are automatically detected separately according to number and correction requirement and, depending on number and degree of difficulty of the servicing cases detected, a job instruction signal of one of at least two signal stages is transmitted to a corresponding associated servicing element according to a predetermined ranking of the servicing elements.
  • the apparatus has a summing device for summing existing servicing cases, a comparator for comparing the sum of existing servicing cases with a preset number of servicing cases, and at least one indicator connected with both the comparator and the detector, the indicator being capable of at least two indication stages as a function of the servicing element required for correcting the servicing cases detected.
  • the indicator provides information regarding the type of servicing case regarding the rank of servicing element (i.e. automatic strand piecing unit, operator, supervisor) required for dealing with the situation.
  • the present invention has been made in view of the above problems and is directed to providing a ring type spinning machine comprising an apparatus for assisting in yarn piecing that reduces the waste of time spent by a worker for yarn piecing and enables the worker to identify the spindle at which a yarn break has occurred with high reliability and accuracy.
  • each ring type spinning machine 11 includes a plurality of spindles 12 each having a yarn break sensor 13 as the yarn break detector of the present invention and a yarn break indicator lamp 14.
  • a light-emitting diode (LED) is used for the yarn break indicator lamp 14.
  • Large lamps 15 are provided at the opposite ends of each ring type spinning machine 11. In this embodiment, the yarn break indicator lamps 14 and the large lamps 15 also function as the indicators that guide the worker to the spindle 12 at which a yarn break has occurred.
  • Each ring type spinning machine 11 has at each of the opposite longitudinal ends thereof two pairs of a first motion sensor 16 and a second motion sensor 17. Specifically, a pair of the first and the second motion sensors 16, 17 is provided on each of the opposite lateral sides of the ring type spinning machine 11. The first and the second motion sensors 16, 17 correspond to the position detectors that detect the position of the worker. In each pair of the first and the second motion sensors 16, 17, the first motion sensor 16 is disposed outward of the second motion sensor 17 and adjacent to the ends of the ring type spinning machine 11. Infrared sensors are used as the motion sensors 16, 17.
  • Each ring type spinning machine 11 has at one end thereof a control device 18.
  • the control device 18 is connected to the yarn break sensor 13 via a signal line (not shown) through which the control device 18 receives yarn break detection signals of the yarn break sensor 13.
  • Each control device 18 is connected to each of the motion sensors 16, 17 through signal lines (not shown) to receive motion detection signals from the motion sensors 16, 17. Having received motion detection signals from the first motion sensor 16 and then from the second motion sensor 17 in this order, the control device 18 determines that the worker has entered an aisle between the two adjacent ring type spinning machines 11. When the control device 18 receives motion detection signals from the second motion sensor 17 and then from the first motion sensor 16 in this order, on the other hand, the control device 18 determines that the worker has exited from the aisle between the two ring type spinning machines 11.
  • Each control device 18 is connected to a host computer 20 via a local area network (LAN) 19.
  • the host computer 20 includes a CPU 21 and a memory 22.
  • the host computer 20 receives from the respective control devices 18 information on yarn break detection signals from the yarn break sensors 13 in each ring type spinning machine 11 and makes determination as to at which spindle 12 of which spinning machine 11 a yarn break has occurred, based on the yarn break detection signals.
  • the host computer 20 also receives from the control device 18 information on motion detection signals from the motion sensors 16, 17 and makes determination as to along which ring type spinning machine 11 the worker is present, based on the motion detection signals.
  • the control devices 18 and the host computer 20 cooperate to form the controller of the present invention that controls the yarn break indicator lamps 14 and the large lamps 15 as the indicators of the present invention based on the position of a yarn break and the position of the worker.
  • the host computer 20 instructs and causes the control device 18 of the ring type spinning machine 11 having the yarn break to turn on the large lamps 15 and blink the yarn break indicator lamp 14 of the spindle 12 at which the yarn break has occurred for prompting the worker to move to that spindle.
  • the control device 18 turns on the large lamps 15 and the yarn break indicator lamp 14.
  • the host computer 20 outputs an instruction to the control device 18 of the ring type spinning machine 11 having the largest number of yarn breaks to control the large lamps 15 of the ring type spinning machine 11 and the yarn break indicator lamps 14 of the spindles 12 calling for yarn piecing service so that the worker is prompted to move preferentially to the ring type spinning machine 11 which has the largest number of yarn breaks.
  • the host computer 20 outputs an instruction to the control device 18 of the ring type spinning machine 11 that is then closest to the worker to control the large lamps 15 of the ring type spinning machine 11 and the yarn break indicator lamps 14 of the spindles 12 having the yarn breaks so that the worker is prompted to move preferentially to the above ring type spinning machine 11 which has the largest number of yarn breaks.
  • a large number of ring type spinning machines 11 are arranged side by side to each other and plural workers are allocated in the plant to attend to specified ring type spinning machines 11, respectively.
  • a worker is assigned to attend to, for example, six ring type spinning machines 11.
  • FIG. 2 shows a schematic view illustrating the operation of an apparatus according to the background art.
  • the yarn break sensor 13 in each of the spindles 12 monitors a yarn being spun to check for any yarn break. If a yarn break is detected by the yarn break sensor 13 at any spindle 12, the yarn break indicator lamp 14 of the spindle 12 having the yarn break (hereinafter designated as yarn-broken spindle 12A) is turned on and, at the same time, the large lamps 15 provided at the opposite ends of the ring type spinning machine 11 in which the yarn-broken spindle 12A is located are turned on.
  • the large lamps 15 of the ring type spinning machines 11 having yarn breaks are turned on irrespective of the number of the yarn breaks. Referring to FIG.
  • the worker having found the yarn-broken spindles 12A provides yarn piecing service for each of the yarn-broken spindles 12A. Therefore, despite its larger number of yarn-broken spindles 12A than the third and the fourth ring type spinning machines 11, the yarn piecing service for the yarn-broken spindles 12A in the fifth ring type spinning machine 11 is postponed.
  • FIG. 3 illustrating the operation of the apparatus for assisting in yarn piecing according to the present embodiment
  • the worker is present at a position in an aisle indicated by a rectangle between the second and the third spinning machines 11 and a plurality of yarn breaks has occurred, namely one yarn break in the third and the fourth ring type spinning machines 11, respectively, and two or more yarn breaks (two yarn breaks in FIG. 3 ) in the fifth ring type spinning machine 11.
  • not all of the large lamps 15 of the ring type spinning machines 11 having the spindles 12A having the yarn breaks are turned on at the same time.
  • the host computer 20 While the ring type spinning machines 11 are in operation, the host computer 20 is informed of any yarn breaks in each of the ring type spinning machines 11 and the current position of the worker, based on the yarn break detection information from the yarn break sensors 13 and the motion detection information from the motion sensors 16, 17 in each of the ring type spinning machine 11. Then the host computer 20 (or the CPU 21) determines a preferential order according to which yarn breaks at respective yarn-broken spindles 12A in plural ring type spinning machines 11 should be remedied, that provides possibly the shortest average period of time during which the yarn-broken spindle 12A is left unremedied before the yarn piecing is all completed.
  • the host computer 20 instructs and causes the control device 18 of the respective ring type spinning machines 11 having a yarn-broken spindle 12A to turn on the large lamps 15 and to blink the yarn break indicator lamps 14 to show the worker the direction to the yarn-broken spindle 12A calling for yarn piecing service.
  • the host computer 20 When yarn breaks have occurred in multiple ring type spinning machines 11, the host computer 20 outputs an instruction to the control device 18 of the fifth spinning machine 11 that has the largest number of yarn breaks to turn on the large lamps 15 of the fifth spinning machine 11, as indicated by shaded circles in FIG. 3 , so that the worker is preferentially guided to the fifth spinning machine 11.
  • the host computer 20 In order to guide the worker to the yarn-broken spindles 12A in the fifth spinning machine 11, the host computer 20 also outputs an instruction to the control device 18 of the fifth spinning machine 11 to turn on the yarn break indicator lamps 14 of the yarn-broken spindles 12A and also to sequentially blink the yarn break indicator lamps 14 of the other spindles 12 in the fifth spinning machine 11 in such a way that guides or directs the worker to the yarn-broken spindles 12A, as indicated by outlined arrows in the fifth spinning machine 11 in FIG. 3 .
  • the host computer 20 In order to guide the worker to exit from the aisle between the second and the third spinning machines 11, the host computer 20 outputs an instruction to the control devices 18 of the second and the third spinning machines 11 to blink the yarn break indicator lamps 14 on the facing sides of the second and the third spinning machines 11 sequentially in opposite directions from an intermediate position where the worker is presumed to be positioned, for guiding or directing the worker toward either of the opposite ends of the ring type spinning machines 11, as indicated by outlined arrows in the second and the third spinning machines 11 in FIG. 3 .
  • the large lamps 15 of the fifth ring type spinning machine 11 are turned on, and the yarn break indicator lamps 14 of the second, the third, and the fifth spinning machines 11 are caused to blink.
  • the worker is guided by the yarn break indicator lamps 14 of the second and the third spinning machines 11 to exit from the aisle between such two spinning machines 11 and then is guided by the large lamps 15 of the fifth spinning machine 11 to either of the opposite ends thereof. Subsequently, the worker is guided by the blinking yarn break indicator lamps 14 of the fifth spinning machine to the yarn-broken spindles 12A calling for yarn piecing service.
  • the host computer 20 When the yarn piecing for the yarn-broken spindles 12A of the fifth spinning machine is completed, the third, the fourth, and the fifth spinning machines 11 have one yarn-broken spindle 12A, respectively.
  • the host computer 20 outputs an instruction to any appropriate control device 18 to turn on its associated large lamps 15 so that the worker is guided preferentially to the ring type spinning machine 11 that is at the closest distance from the current position of the worker.
  • the host computer 20 outputs an instruction to any appropriate control device 18 to turn on its associated large lamps 15 so that the worker is guided preferentially to the ring type spinning machine 11 that is at the closest distance from the current position of the worker.
  • the host computer 20 outputs to the control device 18 of the fourth spinning machine a control instruction to turn on the yarn break indicator lamps 14 and the large lamps 15 of the fourth spinning machines 11 so that the worker is guided into the aisle between the third and the fourth spinning machines 11, that is, guided to the side of the fourth spinning machine 11 on which the yarn-broken spindle 12A is present.
  • the host computer 20 also outputs to the control device 18 of the fifth spinning machine an instruction for causing the yarn break indicator lamps 14 of the fifth spinning machine to blink sequentially in the direction in which the worker is guided to exit from the aisle between the fourth and the fifth spinning machines 11.
  • the worker guided by the blinking of the yarn break indicator lamps 14 exits from the aisle between the fourth and the fifth spinning machines 11, makes sure of the large lamps 15 of the fourth spinning machine 11 being turned on, and then checks the aisle between the fourth and the third spinning machines 11. Then, the worker is guided by the blinking of the yarn break indicator lamps 14 of the fourth spinning machine 11 to the yarn-broken spindle 12A calling for yarn piecing service.
  • the host computer 20 When the worker has finished the yarn piecing at the yarn-broken spindle 12A in the fourth spinning machine 11, the host computer 20 outputs an instruction to control the large lamps 15 and the yarn break indicator lamps 14 so that the worker is guided to the yarn-broken spindle 12A of the third spinning machine 11. As shown in FIG. 3 , the third spinning machine 11 has a yarn-broken spindle 12A at a position along the aisle between the third and the fourth spinning machines 11. The host computer 20 recognizes that the worker having completed the yarn piecing at the fourth spinning machine 11 is present in the aisle between the third and the fourth spinning machines 11.
  • the host computer 20 outputs to the control device 18 of the third spinning machine 11 a control instruction to turn on the large lamps 15 and the yarn break indicator lamp14 of the yarn-broken spindle 12A and to blink the yarn break indicator lamps 14 of the remaining spindles 12 of the third spinning machine 11 sequentially in the direction in which the worker is guided to the yarn-broken spindle 12A.
  • the worker is guided by the blinking yarn break indicator lamps 14 to the yarn-broken spindle 12A for yarn piecing.
  • the present embodiment offers the following effects.
  • the present invention is not limited to the above embodiments, but may variously be modified as follows.
  • control devices 18 of the respective ring type spinning machines 11 may be so configured that the control devices 18 are connected to one another via communication device and one of the control devices 18 serves as the host computer.
  • a radio frequency identification (RFID) system may be provided at the ends of the respective ring type spinning machines 11 so that the workers for providing yarn piecing service are discriminated from the workers assigned, for example, to roving replacement.
  • RFID radio frequency identification
  • indicator lamps showing an arrow may be provided instead of the yarn break indicator lamps 14.
  • a plurality of ordinary indicator lamps e.g. lamps with no signs like an arrow, may be provided as the yarn break indicator lamps 14 and controlled and operated to blink sequentially in the direction for guiding the worker to the yarn-broken spindle 12A.
  • the interval at which such indicator lamps are arranged may be larger than the interval at which the spindles 12 are disposed.
  • two large lamps 15 may be provided at each of the opposite ends of the respective ring type spinning machine 11 along the width thereof.
  • the illumination of the large lamps 15 informs the worker of which side of the ring type spinning machine 11 has a yarn break.
  • the global positioning system may be used for locating the position of the worker.
  • the host computer 20 starts estimation of the position of the worker when it is confirmed that the worker has entered into an aisle between the ring type spinning machines 11 at least either one of which includes a yarn-broken spindle 12A based on motion detection signals from the motion sensors 16, 17.
  • the position of the worker may be estimated based on a predetermined moving speed of the worker and the time elapsed after the entrance of the worker into the aisle.
  • the host computer 20 may output to the control device 18 a control instruction so that only selected yarn break indicator lamps 14 near the worker blink sequentially instead of driving all of the yarn break indicator lamps 14 except the one for the yarn-broken spindle 12A, which reduces the power consumption for driving the yarn break indicator lamps 14.
  • the motion sensors are not limited to infrared sensors, but electrostatic capacitance sensors may be used.
  • Determination as to whether the worker has entered or exited from an aisle may be made based on motion detection signals from only one pair of motion sensors 16, 17 disposed at each of the ring type spinning machines 11, instead of two pairs of such motion sensors 16, 17 as in the embodiment shown FIG. 1 .
  • the entrance and exit of the worker into and out of an aisle between any two adjacent spinning machines may be determined based on the order of motion detection signals received from the motion sensors 16, 17 at the opposite ends of the ring type spinning machine 11. More specifically, upon receipt of a first motion detection signal from the motion sensors 16, 17, the host computer 20 determines that the worker has entered an aisle, and determines that the worker has exited from the aisle when a second motion detection signal is received.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)

Claims (3)

  1. Machine à filer à anneau (11) comprenant un appareil pour aider lors du rattachage des fils, la machine à filer comprenant :
    une pluralité de broches (12) et une pluralité de détecteurs de rupture de fil (13) prévus pour les broches (12) respectives, dans laquelle ledit appareil comprend :
    une pluralité d'indicateurs (14, 15) configurés pour guider l'ouvrier dans une position de l'une des broches (12A) présentant une rupture de fil ; et
    un organe de commande (18, 20) configuré pour commander les indicateurs (14, 15) en fonction, en partie, de la position de la broche (12A) présentant la rupture de fil,
    caractérisée en ce que la machine à filer comprend en outre un détecteur de position (16, 17) configuré pour détecter une position d'un ouvrier qui fournit un service de rattachage de fils, dans laquelle :
    les indicateurs (14, 15) sont des lampes d'indicateur de rupture de fil (14) prévues pour les broches (12) respectives, et
    l'organe de commande (18, 20) est configuré pour commander les indicateurs (14, 15) également en fonction de la position de l'ouvrier, et est configuré pour commander les lampes d'indicateur de rupture de fil (14) afin qu'elles clignotent de manière séquentielle dans une direction dans laquelle l'ouvrier est guidé vers la position de la broche (12A) présentant la rupture de fil.
  2. Machine à filer à anneau (11) selon la revendication 1, dans laquelle, lorsqu'une pluralité de ruptures de fil se produit sur une pluralité de machines à filer à anneau (11), l'organe de commande (18, 20) est configuré pour commander les indicateurs (14, 15) afin qu'ils guident l'ouvrier de préférence vers la machine à filer à anneau (11) ayant le plus grand nombre de ruptures de fil.
  3. Machine à filer à anneau (11) selon la revendication 1 ou la revendication 2, dans laquelle, lorsqu'une pluralité de ruptures de fil se produit sur une pluralité de machines à filer à anneau (11) et que le nombre de ruptures de fil est le même parmi les machines à filer à anneau (11), l'organe de commande (18, 20) est configuré pour commander les indicateurs (14, 15) afin qu'ils guident l'ouvrier, de préférence, vers la machine à filer à anneau (11) qui est la plus proche de l'ouvrier.
EP15169111.0A 2014-06-02 2015-05-26 Machine à filer à anneau avec appareil pour aider au percement de fil Active EP2952461B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2014113935A JP6028767B2 (ja) 2014-06-02 2014-06-02 リング式紡機の糸継ぎ作業支援装置

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EP2952461A2 EP2952461A2 (fr) 2015-12-09
EP2952461A3 EP2952461A3 (fr) 2016-04-06
EP2952461B1 true EP2952461B1 (fr) 2017-07-12

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JP (1) JP6028767B2 (fr)
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JP7287751B2 (ja) 2017-04-11 2023-06-06 株式会社豊田自動織機 リング精紡機の不正ドッフィング検出装置
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CN108588920B (zh) * 2018-05-21 2020-06-09 江南大学 一种细纱机断头激光辅助检测装置及方法
CN108677296B (zh) * 2018-05-31 2019-12-13 江南大学 一种增加单锭检测设备使用寿命的装置和方法
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CN105297208B (zh) 2017-12-08
EP2952461A2 (fr) 2015-12-09
EP2952461A3 (fr) 2016-04-06
JP6028767B2 (ja) 2016-11-16
CN105297208A (zh) 2016-02-03
JP2015227520A (ja) 2015-12-17

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