EP0841425B1 - Vorrichtung zum Wechseln der Unterfadenspule einer Stick- oder Nähmaschine - Google Patents
Vorrichtung zum Wechseln der Unterfadenspule einer Stick- oder Nähmaschine Download PDFInfo
- Publication number
- EP0841425B1 EP0841425B1 EP97117475A EP97117475A EP0841425B1 EP 0841425 B1 EP0841425 B1 EP 0841425B1 EP 97117475 A EP97117475 A EP 97117475A EP 97117475 A EP97117475 A EP 97117475A EP 0841425 B1 EP0841425 B1 EP 0841425B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- slider
- shuttle shaft
- bobbin
- shaft
- shuttle
- 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.)
- Expired - Lifetime
Links
Images
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 With every embroidery or sewing machine (see e.g. JP-A-04 073094) the bobbin must be known 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 replaced. 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 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.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Sewing Machines And Sewing (AREA)
Description
- Fig. 1
- eine schematische Stirnansicht eines Teils einer Stickmaschine, die mit einer Vorrichtung nach der Erfindung ausgerüstet ist,
- Fig. 2
- eine Aufsicht entsprechend der Linie II-II in Fig. 1 und
- Fig. 3
- eine perspektivische Darstellung der Wechselvorrichtung, gesehen in Richtung des Pfeils III in Fig. 2.
Claims (9)
- Vorrichtung zum Wechseln der Unterfadenspule in einem über eine Greiferwelle angetriebenen Umlaufgreifer einer industriellen Stick- oder Nähmaschine,
gekennzeichnet durch
einen Schlitten (4) mit mindestens zwei parallel zu der Greiferwelle (5) ausgerichtete Kupplungswellen (6, 7), von denen jede an ihrem der Greiferwelle (5) abgewandten Ende einen Umlaufgreifer (8, 9) trägt während ihr der Greiferwelle (5) zugewandtes Ende mit letzterer derart kuppelbar (21; 22, 23) ist, dass der Schlitten (4) bei Stillstand der Greiferwelle (5) rechtwinklig zu dieser und parallel zur Stichplattenebene (1) um den Abstand der Kupplungswellen (6, 7) reversierend verfahrbar ist. - Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass die Greiferwelle (5) einen Kopf (20) mit einer bei Stillstand der Greiferwelle (5) parallel zur Verschieberichtung des Schlittens (4) orientierten Quernut (21) hat und dass jede der Kupplungswellen (6, 7) einen Mitnehmer mit einem in die Quernut einführbaren Keil (22, 23) hat.
- Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, dass die Quernut (21) und/oder die Keile (22, 23) Einführanschrägungen (22a, 23a) haben.
- Vorrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass den Kupplungswellen (6, 7) eine in deren ausgekuppelter Stellung wirksame Verdrehsicherung (31) zugeordnet ist.
- Vorrichtung nach Anspruch 4, dadurch gekennzeichnet, dass die Verdrehsicherung aus einer zur Verschieberichtung des Schlittens (4) parallelen Gleitbahn (31) in Höhe der Keile (22, 23) besteht.
- Vorrichtung nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass der Schlitten (4) auf einer Prismenschiene (10) läuft.
- Vorrichtung nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass der Schlitten (4) über einen elektromotorischen Antrieb (15 bis 19) verschiebbar ist.
- Vorrichtung nach Anspruch 7, dadurch gekennzeichnet, dass der elektromotorische Antrieb (15 bis 19) nur bei stillstehender Greiferwelle aktivierbar ist.
- Vorrichtung nach Anspruch 7 oder 8, dadurch gekennzeichnet, dass der elektromotorische Antrieb (15 bis 19) des Schlittens über einen Fadenwächter aktivierbar ist.
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 EP0841425A2 (de) | 1998-05-13 |
EP0841425A3 EP0841425A3 (de) | 1998-09-09 |
EP0841425B1 true EP0841425B1 (de) | 2002-08-21 |
Family
ID=7810961
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP97117475A Expired - Lifetime EP0841425B1 (de) | 1996-11-07 | 1997-10-09 | Vorrichtung zum Wechseln der Unterfadenspule einer Stick- oder Nähmaschine |
Country Status (7)
Country | Link |
---|---|
US (1) | US5904110A (de) |
EP (1) | EP0841425B1 (de) |
KR (1) | KR100343075B1 (de) |
CN (1) | CN1077623C (de) |
DE (2) | DE19645979C1 (de) |
ES (1) | ES2180873T3 (de) |
PT (1) | PT841425E (de) |
Families Citing this family (10)
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 |
CN110468529B (zh) * | 2019-09-23 | 2020-06-02 | 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 |
Family Cites Families (10)
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 (de) * | 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 |
-
1996
- 1996-11-07 DE DE19645979A patent/DE19645979C1/de not_active Expired - Fee Related
-
1997
- 1997-10-09 PT PT97117475T patent/PT841425E/pt unknown
- 1997-10-09 DE DE59708008T patent/DE59708008D1/de not_active Expired - Fee Related
- 1997-10-09 ES ES97117475T patent/ES2180873T3/es not_active Expired - Lifetime
- 1997-10-09 EP EP97117475A patent/EP0841425B1/de not_active Expired - Lifetime
- 1997-11-05 US US08/964,563 patent/US5904110A/en not_active Expired - Fee Related
- 1997-11-06 CN CN97122424A patent/CN1077623C/zh not_active Expired - Fee Related
- 1997-11-07 KR KR1019970058689A patent/KR100343075B1/ko not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
EP0841425A2 (de) | 1998-05-13 |
US5904110A (en) | 1999-05-18 |
KR19980042194A (ko) | 1998-08-17 |
DE19645979C1 (de) | 1998-07-23 |
KR100343075B1 (ko) | 2002-08-22 |
CN1077623C (zh) | 2002-01-09 |
PT841425E (pt) | 2002-11-29 |
CN1182146A (zh) | 1998-05-20 |
EP0841425A3 (de) | 1998-09-09 |
DE59708008D1 (de) | 2002-09-26 |
ES2180873T3 (es) | 2003-02-16 |
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