EP0841425A2 - Dispositif pour remplacer la canette dans une machine à broder ou à coudre - Google Patents

Dispositif pour remplacer la canette dans une machine à broder ou à coudre Download PDF

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Publication number
EP0841425A2
EP0841425A2 EP97117475A EP97117475A EP0841425A2 EP 0841425 A2 EP0841425 A2 EP 0841425A2 EP 97117475 A EP97117475 A EP 97117475A EP 97117475 A EP97117475 A EP 97117475A EP 0841425 A2 EP0841425 A2 EP 0841425A2
Authority
EP
European Patent Office
Prior art keywords
shaft
carriage
gripper
gripper shaft
bobbin
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.)
Granted
Application number
EP97117475A
Other languages
German (de)
English (en)
Other versions
EP0841425A3 (fr
EP0841425B1 (fr
Inventor
Ricky Pang Kim Kwang
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.)
Madeira Asia Pte Ltd
Original Assignee
Madeira Asia Pte Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Madeira Asia Pte Ltd filed Critical Madeira Asia Pte Ltd
Publication of EP0841425A2 publication Critical patent/EP0841425A2/fr
Publication of EP0841425A3 publication Critical patent/EP0841425A3/fr
Application granted granted Critical
Publication of EP0841425B1 publication Critical patent/EP0841425B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • D05B59/04—Devices for changing the bobbin
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B57/00—Loop takers, e.g. loopers
    • D05B57/08—Loop takers, e.g. loopers for lock-stitch sewing machines
    • D05B57/10—Shuttles
    • D05B57/14—Shuttles with rotary hooks
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B57/00—Loop takers, e.g. loopers
    • D05B57/30—Driving-gear for loop takers
    • D05B57/36—Driving-gear for loop takers in lock-stitch sewing machines
    • D05B57/38—Shuttle drives

Definitions

  • the invention relates to a device for changing the Bobbin in a driven by a hook shaft Rotary gripper of an industrial embroidery or sewing machine.
  • the bobbin must be used with every embroidery or sewing machine removed from the rotary gripper and by a new bobbin to be replaced either when the bobbin thread used up and therefore the bobbin is empty, or if the Bobbin thread breaks during embroidery or sewing. The It can only be replaced when the machine is at a standstill. The shutdown is usually automatic and will triggered by a bobbin thread monitor or detector. At a typical engine speed of 700 rpm and one Standard bobbin with approx. 100 m thread length is however the bobbin thread is used up after about 45 minutes.
  • the invention is therefore based on the object of a device to change the bobbin to create the the downtime of the machine and the resulting ones Loss of production significantly reduced.
  • this object is achieved by a carriage with at least two aligned parallel to the gripper shaft Coupling shafts, each on their gripper shaft opposite end of the usual, the bobbin containing rotary gripper while carrying the gripper shaft facing end can be coupled to the latter in such a way that the carriage is rectangular when the gripper shaft is at a standstill to this and parallel to the needle plate plane around the Distance of the coupling shafts is reversible.
  • the embroidery or sewing head or each embroidery head assigned at least two rotary grippers, which at the start of production both are equipped with full bobbins.
  • the other The rotary gripper stands still and is in a waiting position. Is now the thread supply of the bobbin in the first rotary hook is exhausted or there is a thread break, so the machine stops. Instead of the empty one Lower thread bobbin of this rotary hook against usual as before replacing a full bobbin is only necessary move the sled until the other, previously waiting Orbital gripper comes into its working position. This The changing process takes less than a second for each head claim. The machine can then be put back in immediately Gear. With the machine running, the empty thread spool of the rotary gripper now in the waiting position without time pressure against a full bobbin exchanged. This change process is repeated every time a bobbin is exhausted.
  • the gripper shaft has a head with a when the Gripper shaft parallel to the sliding direction of the slide oriented transverse groove, and each of the coupling shafts has one Driver with a wedge that can be inserted into the transverse groove.
  • the Transverse groove and / or the wedges insertion chamfers makes possible a safe coupling of the respective coupling shaft with the driving gripper shaft even with tight tolerances between the transverse groove at the end of the gripper shaft and the wedges of the respective coupling shafts.
  • the preferred embodiment here has the advantage, however, of the anti-rotation device for the coupling shafts as a simple, to the direction of displacement Form a parallel slide at the level of the wedges to be able to.
  • the sled is powered by an electric motor Move drive.
  • Rotating are considered or linear standard drives, best combined with an incremental displacement sensor, which ensures that the Carriage in the given position in which the Coupling shaft of the active rotary gripper exactly with the Gripper shaft is aligned, comes to a standstill.
  • an incremental displacement sensor which ensures that the Carriage in the given position in which the Coupling shaft of the active rotary gripper exactly with the Gripper shaft is aligned, comes to a standstill.
  • the proposed changing device is located under the only schematically indicated tabletop 1 e.g. one usual embroidery machine.
  • the device comprises a base plate 2, hanging over columns 3 under the table top 1 is attached. This already allows retrofitting existing machines with the changing device.
  • the changing device itself consists essentially of a carriage 4 in which two parallel to the gripper shaft 5 aligned coupling shafts 6 and 7 are supported by which each at its end facing away from the gripper shaft 5 a rotary gripper 8 or 9 carries.
  • the carriage 4 is on a prismatic guide rail 10 between two end positions movable at right angles to the gripper shaft 5.
  • the End positions are indicated by two schematically indicated microswitches 11 and 12 with from the end faces of the slide 4 actuated feeler levers 11a and 12a determined.
  • A serves to reverse the carriage 4 electromotive drive, which in the exemplary embodiment an electric motor 15 is symbolized by a gear an eccentric 16 between two cams 17 and 18th rotates, which in turn are attached to the end of an arm 19, which is connected to the carriage 4 at its other end is.
  • Fig. 2 the carriage 4 is in its left End position in which the right rotary gripper 9 in its working position stands, in which he over his clutch shaft 7 is coupled to the gripper shaft 5.
  • Fig. 3 shows the Slide 4 during its displacement on the rail 10 in an intermediate position.
  • each of the coupling shafts 6, 7 has a driver 6a or 7a with a wedge 22 or 23 which can be inserted into the transverse groove 21.
  • the wedges 22, 23 are in turn with the indicated chamfers 22a and 23a.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Sewing Machines And Sewing (AREA)
EP97117475A 1996-11-07 1997-10-09 Dispositif pour remplacer la canette dans une machine à broder ou à coudre Expired - Lifetime EP0841425B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19645979 1996-11-07
DE19645979A DE19645979C1 (de) 1996-11-07 1996-11-07 Vorrichtung zum Wechseln der Unterfadenspule einer Stick- oder Nähmaschine

Publications (3)

Publication Number Publication Date
EP0841425A2 true EP0841425A2 (fr) 1998-05-13
EP0841425A3 EP0841425A3 (fr) 1998-09-09
EP0841425B1 EP0841425B1 (fr) 2002-08-21

Family

ID=7810961

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97117475A Expired - Lifetime EP0841425B1 (fr) 1996-11-07 1997-10-09 Dispositif pour remplacer la canette dans une machine à broder ou à coudre

Country Status (7)

Country Link
US (1) US5904110A (fr)
EP (1) EP0841425B1 (fr)
KR (1) KR100343075B1 (fr)
CN (1) CN1077623C (fr)
DE (2) DE19645979C1 (fr)
ES (1) ES2180873T3 (fr)
PT (1) PT841425E (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110468529A (zh) * 2019-09-23 2019-11-19 北京大豪科技股份有限公司 旋梭更换装置的控制方法、控制装置、设备及存储介质
BE1027290B1 (nl) * 2019-11-04 2020-12-09 T M C Machines Nv Het wisselen van draadspoelen

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1299993B1 (it) * 1998-04-30 2000-04-04 Resta Srl Apparecchiatura per il cambio automatico delle capsule porta-spole in macchine trapuntatrici.
CH696339A5 (de) * 2003-08-08 2007-04-30 Gegauf Fritz Ag Näh- oder Stickmaschine.
CN101979747A (zh) * 2010-11-03 2011-02-23 佛山市启创科技发展有限公司 一种电脑绣花机的自动换底线装置
CN102978851A (zh) * 2012-11-02 2013-03-20 中捷大宇机械有限公司 数字控制刺绣机底线自动换色装置
CN103320994B (zh) * 2013-07-02 2014-09-24 江苏万乐复合材料有限公司 缝纫机底线自动更换装置
CN103696186B (zh) * 2013-12-11 2014-07-30 佛山市启创科技发展有限公司 绣花机自动换底线装置用的梭芯夹持机构
CN104928863B (zh) * 2015-06-24 2017-02-22 武汉真优美电脑绣花机有限公司 一种环梭分体式固定装置
CN107558035A (zh) * 2017-09-08 2018-01-09 北京大豪科技股份有限公司 梭芯更换设备及刺绣机
CN113564826B (zh) * 2021-09-03 2025-06-27 广州喜威自动化科技有限公司 一种多工位绣花机用更换线芯梭壳装置

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US862033A (en) * 1905-01-05 1907-07-30 Edwin J Toof Interchangeable lock and chain stitch sewing-machine.
NL265223A (fr) * 1960-05-28
US3747547A (en) * 1971-02-23 1973-07-24 Bobbin Monitor Corp Bobbin changing mechanism method and product
US3744442A (en) * 1971-09-24 1973-07-10 Strauss Levi & Co Automatic bobbin changer
US3981256A (en) * 1975-05-09 1976-09-21 J. P. Stevens & Co., Inc. Magnetic automatic bobbin changer for sewing machines
JPS60234690A (ja) * 1984-05-09 1985-11-21 東海工業ミシン株式会社 ミシンにおけるル−パ駆動装置
US5143004A (en) * 1987-11-25 1992-09-01 Mardix Bar Cochva Sewing apparatus including automatic bobbin reloading
JPH042395A (ja) * 1990-04-20 1992-01-07 K I Tsusho Kk ミシンのボビン交換装置
JP2763662B2 (ja) * 1990-07-16 1998-06-11 ユニテック株式会社 ミシン
DE19653296C1 (de) * 1996-12-20 1998-04-02 Zsk Stickmasch Gmbh Stickmaschine mit Greiferwechsel

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110468529A (zh) * 2019-09-23 2019-11-19 北京大豪科技股份有限公司 旋梭更换装置的控制方法、控制装置、设备及存储介质
BE1027290B1 (nl) * 2019-11-04 2020-12-09 T M C Machines Nv Het wisselen van draadspoelen

Also Published As

Publication number Publication date
KR100343075B1 (ko) 2002-08-22
DE59708008D1 (de) 2002-09-26
ES2180873T3 (es) 2003-02-16
DE19645979C1 (de) 1998-07-23
EP0841425A3 (fr) 1998-09-09
CN1077623C (zh) 2002-01-09
EP0841425B1 (fr) 2002-08-21
KR19980042194A (ko) 1998-08-17
CN1182146A (zh) 1998-05-20
US5904110A (en) 1999-05-18
PT841425E (pt) 2002-11-29

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