EP2589695B1 - Verfahren zum automatischen Aufspulen einer Spule und einer Garnrolle sowie Spuleinrichtung zur Durchführung des Verfahrens - Google Patents

Verfahren zum automatischen Aufspulen einer Spule und einer Garnrolle sowie Spuleinrichtung zur Durchführung des Verfahrens Download PDF

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Publication number
EP2589695B1
EP2589695B1 EP12190701.8A EP12190701A EP2589695B1 EP 2589695 B1 EP2589695 B1 EP 2589695B1 EP 12190701 A EP12190701 A EP 12190701A EP 2589695 B1 EP2589695 B1 EP 2589695B1
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EP
European Patent Office
Prior art keywords
bobbin
sensor
winding device
winding
coil
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
EP12190701.8A
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German (de)
English (en)
French (fr)
Other versions
EP2589695A1 (de
Inventor
Markus Richter
Christoph Heckner
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.)
Duerkopp Adler AG
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Duerkopp Adler AG
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Publication of EP2589695A1 publication Critical patent/EP2589695A1/de
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Classifications

    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B59/00—Applications of bobbin-winding or -changing devices; Indicating or control devices associated therewith
    • 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
    • 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
    • B65H63/08—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to delivery of a measured length of material, completion of winding of a package, or filling of a receptacle
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B59/00—Applications of bobbin-winding or -changing devices; Indicating or control devices associated therewith
    • D05B59/02—Devices for determining or indicating the length of thread still on the bobbin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2553/00—Sensing or detecting means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2553/00—Sensing or detecting means
    • B65H2553/40—Sensing or detecting means using optical, e.g. photographic, elements
    • B65H2553/41—Photoelectric detectors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2553/00—Sensing or detecting means
    • B65H2553/40—Sensing or detecting means using optical, e.g. photographic, elements
    • B65H2553/41—Photoelectric detectors
    • B65H2553/412—Photoelectric detectors in barrier arrangements, i.e. emitter facing a receptor element
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2553/00—Sensing or detecting means
    • B65H2553/51—Encoders, e.g. linear

Definitions

  • the invention relates to a method for automatically winding a spool from a spool of thread.
  • the invention relates to a winding device for carrying out the method and a sewing machine with such a winding device.
  • a sewing machine with an automatic winding device is known from the EP 2 088 229 A1 , From the DE 36 288 03 A1 a coil sorting device is known.
  • the DE 39 42 304 A1 describes a method and apparatus for detecting a yarn package.
  • the DE 198 36 071 A1 describes a method for residual thread detection. Corresponding methods and devices for the detection of residual thread are described in US Pat DE 1 98 51 751 A1 , of the DE-OS 2 056 427 , of the DE 87 01 858 U1 and the DE 101 40 636 C1 , From the DE 101 43 378 A1 a bobbin thread winding device is known.
  • the EP 0 979 795 A2 describes a method for detecting thread residues on spinning head sleeves.
  • the signal transmitter emits either the signal "remaining thread”, “reel correctly rewound” or “reel not correctly reeled” or controls the reel drive.
  • An optical residual thread sensor can be designed with high precision.
  • the light source and the light detector may be combined in one unit; but can also be designed as spaced-apart components.
  • a guide of a detection light beam of the residual thread sensor can take place parallel to a coil axis of rotation. Alternatively, such a guide can also be made skewed to the coil axis of rotation.
  • a revolution counter according to claim 6 and a length sensor according to claim 7 are variants of a residual thread sensor, which can be realized with little design effort.
  • a tactile sensor according to claim 8 can be made robust.
  • a prestressing according to claim 9 facilitates the handling of a tactile residual thread sensor.
  • the bias can be done by means of a magnet and / or with the aid of a biasing spring.
  • a residual thread can also over a Circuit are detected, which is only between the contact finger and the coil is not closed, if there is still residual thread on the coil.
  • the winding device according to the invention can also be used generally for the coil fill level test.
  • the residual thread sensor is arranged as a level sensor so that it detects whether a certain thread winding height is reached on the spool.
  • the residual thread sensor can be arranged so that it can be reliably detected whether the bobbin is fully wound.
  • the level check is performed after the automatic rewinding operation is completed. If the level check indicates that a predetermined winding state has been reached, the wound coil is released.
  • Such a level sensor can also be used to check the level of coils that were wound at an earlier time and whose level is to be controlled.
  • a sewing machine 1 has a housing 2 with an arm 3 and a stand 4.
  • a needle bar 5 is driven up and down with a sewing needle 6 via an arm shaft extending in the arm 3.
  • a sewing thread is fed via a thread guiding device 7 with a predetermined thread tension.
  • the sewing machine 1 has a winding device 8 for winding a yarn package from a yarn roll 9.
  • a concernedspulender thread 10 is thereby fed via a boom 11 and yarn guide components of the yarn guide device 7 of the winding device 8.
  • the winding device 8 has a Spulfact 12 for receiving a coil 13, as in the prior art, for example from the EP 2 088 229 A1 is known. Furthermore, the winding device 8 has a winding drive, over which a winder shaft 14, on which the coil 13 is attached, is rotationally driven.
  • the winding drive which is formed for example via a friction wheel, which is driven by an arm shaft of the sewing machine, is shown schematically at 15 in the drawing.
  • the winding device 8 has a residual yarn sensor for detecting a residual yarn on the spool 13. Different versions of the residual yarn sensor are described below with reference to the FIGS. 2 to 5 explained.
  • the residual thread sensor is in the Fig. 1 schematically shown at 16.
  • the winding device 8 has a signal generator 17, which is in signal manner not shown in a manner not shown both with the winding drive 15 and with the residual yarn sensor 16.
  • the signal generator 17 is designed for outputting a status signal, for example a light signal, an acoustic signal or via a display for outputting a plain text signal and / or for outputting a control signal for the winding drive 15.
  • the output signals may be, for example, one of the signals "residual thread”, if a residual thread on the spool 13, ie on the bobbin, is detected by the residual thread sensor 16, the signal “coil wound correctly” or the signal “coil not correctly wound up "act.
  • FIGS. 2 and 3 show details of a first embodiment of the residual thread sensor 16.
  • This comprises a transmitting unit in the form of a light source 18 and a receiving unit in the form of a light detector 19.
  • the residual thread sensor 16 may be arranged in place of the light detector 19, a reflector, one of the light source 18 emitted light beam 20 reflected back into itself.
  • a transmitting / receiving unit is arranged, which in addition to the transmitting function also includes a detection function.
  • the light source 18 and the light detector 19 are arranged so that the light beam 20 is guided past a bottom 21 or a lateral surface of the coil 13 just below.
  • a residual thread is present on the bottom 21 of the spool 13, the light beam 20 between the light source 18 and the light detector 19 is interrupted by the residual thread.
  • the residual thread sensor 16 with the light source 18 and the light detector 19 is designed as a light barrier sensor.
  • Fig. 3 shows two arrangement variants on the one hand for the light source 18 and on the other hand for the light detector 19, which are provided with the letters a and b.
  • the residual thread sensor 16 after the FIGS. 2 and 3 can be optically designed so that it optically scans the entire bottom 21 of the coil 13, so that it can be reliably determined whether somewhere on the spool 13, a residual thread is wound up.
  • the spool 13 is first inserted into the Spulfact 12 of the winding device 8. Subsequently, it is determined with the residual thread sensor 16 whether there is a residual thread on the inserted bobbin 13 or not. If no residual thread is detected, the signal generator 17 controls the winding drive for winding the coil 13. After the winding has taken place, the signal generator 17 outputs the signal "Coil wound correctly". If a residual thread is detected, the signal generator 17 outputs the signal "residual thread”. A winding does not take place then. The coil 13 with the remaining thread can then be removed from the Spulfact 12 and replaced with another réellespulende coil 13. Alternatively, the remaining thread from the coil 13 can be removed.
  • the light source 18 and the light detector 19 are arranged so that the light beam 20 is guided parallel to a coil rotation axis of the coil 13 in turn just above the bottom 21 and a lateral surface of the coil 13.
  • Recesses are provided in this case in the side walls of the coil 13 and possibly in over the bottom 21 projecting intermediate elevations of the coil base, that the light beam 20 when no residual thread on the bottom 21 of the coil 13, at least once during a complete revolution of Spool 13 can run continuously between the light source 18 and the light detector 19.
  • a residual thread is present on the coil 13 when, in this embodiment, not shown, during a complete rotation of the coil 13, no light signal arrives at the light detector 19.
  • Fig. 4 shows a variant of the residual thread sensor 16. This is designed as a tactile sensor with a contact finger 22, which can be brought with a lateral surface of wound on the spool 13 yarn or when the spool 13 is empty, with the bottom 21 of the coil 13 into contact.
  • the contact finger 22 is pivotable about a hinge 23 which is parallel to the winder shaft 14 and fixed to the housing 2 of the sewing machine 1.
  • the adjusting body 25 is mounted fixed to the housing and can be adjusted in its position for adaptation to the respective coil geometry. Dashed is in the Fig. 4 a swung-out position of the contact finger is shown at 22 '.
  • the contact finger 22 may in a further variant of the residual thread sensor, which otherwise like the residual thread sensor after Fig. 4 is constructed, are also used for electrical detection of a residual thread.
  • a tip of the contact finger 22 when coming into contact with the bottom 21 of the coil 13, closes a circuit. If the circuit does not close when contacting the tip of the contact finger 22 with the bottom 21 of the coil 13, there is residual thread between the tip and the bottom, so that the signal generator 17 in turn outputs the signal "residual thread".
  • Fig. 5 shows a variant of an optical residual thread sensor 16.
  • This has a transmitting / receiving unit 26, for in Fig. 5 again two alternative positions are indicated.
  • the transmitting / receiving unit 26 includes a light source and a light detector.
  • the arrangement of the transmitting / receiving unit 26 is such that when inserted into the coil receiving 12 coil 13, a light beam 27, which is emitted from the light source of the transmitting / receiving unit 26, perpendicular to the bottom 21 of the coil 13 falls.
  • the bottom 21 is formed as a reflection surface for the light beam 27. If there is no residual thread on the bottom 21, the light beam 27 is reflected back into itself and reaches the light detector of the transmitting / receiving unit 26.
  • the light beam 27 between the light source and the light detector of the transmitting / receiving unit 26 is interrupted.
  • the function of the residual thread sensor 16 after Fig. 5 during automatic winding of the coil 13 corresponds to the one above in connection with the remaining thread 16 after the FIGS. 2 and 3 has already been explained.
  • a light beam emanating from a light source of the residual thread sensor again parallel to the coil axis of rotation of the coil 13 just above the bottom 21 of the coil 13.
  • the light beam penetrates through an opening in one of the two coil side walls in the coil 13 and is reflected back on the opposite side wall. If there is no residual thread on the coil 13 in this embodiment of the residual thread sensor, the situation arises per revolution that the light beam reflected back in itself is detected by the detector of the transmitting / receiving unit of this residual thread sensor. If there is no detectable light signal even with a complete rotation of the coil 13 in this variant, the signal generator in turn emits the signal "residual thread".
  • the residual thread sensor is a revolution counter 28 (see. Fig. 1 ) executed for counting revolutions of the coil 13 during winding.
  • a revolution counter 28 executed for counting revolutions of the coil 13 during winding.
  • the automatic winding method proceeds as follows: After winding the spool 13, ie after a certain spool diameter has been reached, it is determined how many revolutions of the spool shaft 14 were required to completely wind up the spool 13.
  • the signal generator 17 If this number of revolutions is smaller than the known number of revolutions required to completely wind up an empty reel 13, the signal generator 17 outputs the signal "reel not spooled correctly".
  • the coil 13 can then be sorted out.
  • the remaining thread detection via the revolution counter 28 can take place in that the reel 13 is wound until the number of revolutions of the winder shaft 14, which is required for the complete winding of the reel 13, is reached, monitored by the revolution counter 28. Subsequently, it is checked whether too much yarn is wound on the spool 13 or not, which can be done by a diameter check of a yarn volume on the spool 13.
  • the revolution counter 28 may be formed, for example, as a magnetic sensor.
  • a length sensor 29 may also be provided which measures a length of the thread 10 wound on the spool 13. If, when fully wound up coil 13, that is, when when winding a nominal diameter of the coil 13 is reached, this length is too short, a residual thread on the coil 13 must have been present at the beginning of winding. If in an alternative automatic winding process a predetermined thread length, which is required for complete spooling when the spool 13 is empty, was monitored by the length sensor 29 and then turns out to be wound on the spool 13 by a diameter comparison of the wound up yarn volume, this likewise allows a conclusion to be drawn thereon; that before the start of winding still residual thread must have been present on the spool 13.
  • the function of the length sensor 29 therefore corresponds to the function of the revolution counter 28, so that the signal generator 17 can be controlled accordingly, as has already been discussed above.
  • the length sensor 29 can be designed, for example, as an optical sensor.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Quality & Reliability (AREA)
  • Sewing Machines And Sewing (AREA)
  • Filamentary Materials, Packages, And Safety Devices Therefor (AREA)
EP12190701.8A 2011-11-04 2012-10-31 Verfahren zum automatischen Aufspulen einer Spule und einer Garnrolle sowie Spuleinrichtung zur Durchführung des Verfahrens Active EP2589695B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102011085775A DE102011085775A1 (de) 2011-11-04 2011-11-04 Verfahren zum automatischen Aufspulen einer Spule und einer Garnrolle sowie Spuleinrichtung zur Durchführung des Verfahrens

Publications (2)

Publication Number Publication Date
EP2589695A1 EP2589695A1 (de) 2013-05-08
EP2589695B1 true EP2589695B1 (de) 2014-05-21

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Application Number Title Priority Date Filing Date
EP12190701.8A Active EP2589695B1 (de) 2011-11-04 2012-10-31 Verfahren zum automatischen Aufspulen einer Spule und einer Garnrolle sowie Spuleinrichtung zur Durchführung des Verfahrens

Country Status (5)

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EP (1) EP2589695B1 (zh)
KR (1) KR200482631Y1 (zh)
CN (1) CN203049235U (zh)
DE (1) DE102011085775A1 (zh)
TW (1) TWM457745U (zh)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103741393B (zh) * 2013-12-27 2016-05-11 宁波三合鑫自动化有限公司 锁式线迹缝纫机底线余量检测装置及其检测方法
DE102014220207B4 (de) 2014-10-07 2023-01-12 Dürkopp Adler AG Nähmaschine
DE102014220209A1 (de) * 2014-10-07 2016-04-07 Dürkopp Adler AG Sensorbaugruppe für eine Nähmaschine
CN104233658A (zh) * 2014-10-16 2014-12-24 杰克缝纫机股份有限公司 一种绕线线量检测系统及方法
CN107099949B (zh) * 2017-05-25 2022-11-18 杭州琦星机器人科技有限公司 底线检测装置、底线检测方法及缝纫机
CN110468521B (zh) * 2019-08-28 2021-07-30 拓卡奔马机电科技有限公司 一种缝纫机及其梭芯绕线量计数装置

Family Cites Families (13)

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Publication number Priority date Publication date Assignee Title
DE2056427A1 (en) * 1970-11-17 1972-05-31 Herrenkleiderfabrik Hellmuth Weidenmann, 8750 Aschaffenburg Gripper thread lap indicator - indicating exhaust whilst a considerable length of yarn is still available
JPH0714783B2 (ja) * 1985-12-23 1995-02-22 株式会社ムラオ・アンド・カンパニー ボビンの選別装置
DE8701858U1 (de) * 1987-02-07 1987-03-26 Pfaff Industriemaschinen Gmbh, 6750 Kaiserslautern Nähmaschine mit einem Fadenwächter für den Faden der Spule
US5118958A (en) 1989-03-18 1992-06-02 Murata Kikai Kabushiki Kaisha Apparatus for detecting residual yarn
DE3942304A1 (de) * 1989-12-21 1991-06-27 Schlafhorst & Co W Verfahren und vorrichtung zur qualitativen und quantitativen erfassung eines garnwickels und zum ableiten definierter steuervorgaenge daraus
JP2836252B2 (ja) * 1990-12-14 1998-12-14 ブラザー工業株式会社 ミシンの下糸残量検出装置
JP2000005477A (ja) 1998-06-22 2000-01-11 Juki Corp 下糸自動供給装置
DE19836071A1 (de) * 1998-08-10 2000-02-17 Schlafhorst & Co W Verfahren zur Erkennung von Fadenresten auf Spinnkopshülsen
DE19851751C2 (de) * 1998-11-10 2003-07-24 Zinser Textilmaschinen Gmbh Vorrichtung zum selbsttätigen Entfernen von Vorgarnresten von Vorgarnhülsen
JP4514296B2 (ja) * 2000-09-05 2010-07-28 Ｊｕｋｉ株式会社 下糸巻回装置
JP2002355472A (ja) * 2001-05-31 2002-12-10 Juki Corp 下糸糸巻き装置および下糸糸巻き量制御装置
DE10140636C1 (de) * 2001-08-13 2003-04-24 Pfaff Ind Masch Einrichtung zum Überwachen des Spulenfadens an Doppelsteppstich-Nähmaschinen
DE102008007998A1 (de) 2008-02-07 2009-08-20 Dürkopp Adler AG Nähmaschine sowie Spuleinrichtung für eine derartige Nähmaschine

Also Published As

Publication number Publication date
DE102011085775A1 (de) 2013-05-08
EP2589695A1 (de) 2013-05-08
CN203049235U (zh) 2013-07-10
TWM457745U (zh) 2013-07-21
KR20130002869U (ko) 2013-05-14
KR200482631Y1 (ko) 2017-02-15

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