EP0471187A1 - Thread take up device for an embroidering machine - Google Patents
Thread take up device for an embroidering machine Download PDFInfo
- Publication number
- EP0471187A1 EP0471187A1 EP91111544A EP91111544A EP0471187A1 EP 0471187 A1 EP0471187 A1 EP 0471187A1 EP 91111544 A EP91111544 A EP 91111544A EP 91111544 A EP91111544 A EP 91111544A EP 0471187 A1 EP0471187 A1 EP 0471187A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- thread
- transmission arm
- guide lever
- thread guide
- cam
- 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
Links
- 238000009956 embroidering Methods 0.000 title abstract 2
- 230000005540 biological transmission Effects 0.000 claims abstract description 27
- 238000009966 trimming Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
Images
Classifications
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B49/00—Take-up devices, e.g. levers, for the needle thread
- D05B49/02—Take-up devices, e.g. levers, for the needle thread operated by cams or linkages
Definitions
- the invention relates to a thread transmitter for an embroidery machine with at least one pivotably mounted thread guide lever, which is guided by a transmission arm, the movement of which is controlled by a cam disk rotating with a drivable main shaft, the transmission arm being decoupled from the cam disk.
- It can be a thread feeder for an embroidery machine with one or more embroidery heads.
- Each embroidery head can have one or more thread guide levers.
- the thread guide lever is coupled to the transmission arm via a toothing.
- the transmission arm has a projection at its free end, which is guided in a form-fitting manner in a backdrop, the inner part of which is formed by a cam disk.
- the transmission arm can be displaced in the axial direction of the main shaft with the aid of a solenoid and can thus be decoupled from the main shaft, wherein at the same time another projection of the transmission arm engages in a fixed recess and thereby blocks the transmission arm and the thread guide lever.
- the object of the invention is to improve a thread transmitter of the type described above so that the thread guide lever can be pivoted into any position independently of the main shaft.
- the object is achieved in that the transmission arm is held non-positively on the cam.
- the force can be with a spring, e.g. B. a mechanical or a gas pressure spring can be applied, but you can also use a lifting cylinder, z. B. apply a pneumatic or hydraulic lifting cylinder.
- a spring e.g. B. a mechanical or a gas pressure spring can be applied, but you can also use a lifting cylinder, z. B. apply a pneumatic or hydraulic lifting cylinder.
- the other position can be a predetermined position, in particular one that is suitable for thread trimming.
- the thread guide lever can be firmly connected to the transmission arm. Furthermore, the transmission arm can have a roller for abutment against the cam disc at its free end.
- the thread feeder shown in the drawing is intended for an embroidery machine that is not shown in detail.
- the thread feeder includes at least one thread guide lever 1 which is pivotably mounted on an axis 2.
- the thread guide lever 1 is arranged in the usual way in the area of an associated needle bar, not shown.
- a transmission arm 3 is fixedly connected, which carries a roller 4 at its lower free end, which abuts a cam disc 5.
- the cam 5 sits on a main shaft, not shown, the axis 6 is indicated.
- the main shaft is driven in rotation. When the main shaft rotates and the transmission arm bears against the cam plate 5, the pivoting movement of the thread guide lever 1 is controlled in accordance with the curve of the cam plate 5.
- the transmission arm 3 is held non-positively on the cam plate 5.
- a spring 7 is provided, one end of which engages the transmission arm 3 and the other end of which is supported at 8 in a stationary manner.
- a lifting cylinder 9 is provided, the piston rod 10 articulated on the transmission arm 3 and the other end is articulated on the abutment 8.
- the lifting cylinder 9 has connections 11 for the pressure medium.
- the pressure medium can be liquid or gaseous.
- the counterforce can be adjustable or not adjustable. It can be applied mechanically with a device (not shown) for pivoting the thread guide lever and independently of the state of movement of the main shaft.
- the roller (4) is held on the cam disc (5) by the spring via the thread guide lever (1) and the transfer arm (3).
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Sewing Machines And Sewing (AREA)
Abstract
Description
Die Erfindung betrifft einen Fadengeber für eine Stickmaschine mit wenigstens einem schwenkbar gelagerten Fadenführungshebel, der von einem Übertragungsarm geführt ist, dessen Bewegung von einer mit einer antreibbaren Hauptwelle rotierenden Kurvenscheibe gesteuert ist, wobei der Übertragungsarm von der Kurvenscheibe entkoppelbar ist. Es kann sich dabei um Fadengeber für eine Stickmaschine mit einem oder mehreren Stickköpfen handeln. Jeder Stickkopf kann einen oder mehrere Fadenführungshebel aufweisen.The invention relates to a thread transmitter for an embroidery machine with at least one pivotably mounted thread guide lever, which is guided by a transmission arm, the movement of which is controlled by a cam disk rotating with a drivable main shaft, the transmission arm being decoupled from the cam disk. It can be a thread feeder for an embroidery machine with one or more embroidery heads. Each embroidery head can have one or more thread guide levers.
Bei einer bekannten Ausführung (DE 39 23 419) ist der Fadenführungshebel über eine Verzahnung mit dem Übertragungsarm gekoppelt. Der Übertragungsarm besitzt an seinem freien Ende einen Vorsprung, der in einer Kulisse, deren inneres Teil von einer Kurvenscheibe gebildet ist, formschlüssig geführt ist. Der Übertragungsarm kann mit Hilfe eines Solenoids in achsialer Richtung der Hauptwelle verschoben und dadurch von der Hauptwelle entkoppelt werden, wobei gleichzeitig ein anderer Vorsprung des Übertragungsarms in eine ortsfeste Ausnehmung eingreift und dadurch den Übertragungsarm sowie den Fadenführungshebel blockiert.In a known embodiment (DE 39 23 419) the thread guide lever is coupled to the transmission arm via a toothing. The transmission arm has a projection at its free end, which is guided in a form-fitting manner in a backdrop, the inner part of which is formed by a cam disk. The transmission arm can be displaced in the axial direction of the main shaft with the aid of a solenoid and can thus be decoupled from the main shaft, wherein at the same time another projection of the transmission arm engages in a fixed recess and thereby blocks the transmission arm and the thread guide lever.
Aufgabe der Erfindung ist es, einen Fadengeber der eingangs beschriebenen Gattung so zu verbessern, daß der Fadenführungshebel unabhängig von der Hauptwelle in beliebige Positionen verschwenkt werden kann.The object of the invention is to improve a thread transmitter of the type described above so that the thread guide lever can be pivoted into any position independently of the main shaft.
Die Aufgabe wird dadurch gelöst, daß der Übertragungsarm kraftschlüssig an der Kurvenscheibe gehalten ist. Die Kraft kann mit einer Feder, z. B. einer mechanischen oder einer Gasdruckfeder aufgebracht werden, man kann die Kraft aber auch mit einem Hubzylinder, z. B. einem pneumatischen oder hydraulischen Hubzylinder aufbringen. Mit dem Kraftschluß zwischen dem Übertragungsarm und der Kurvenscheibe kann nicht nur die Schwenkbewegung des Fadenführungshebels exakt gesteuert werden, sondern es besteht auch die Möglichkeit, jederzeit den Fadenführungshebel mit einer regelbaren oder nicht regelbaren Gegenkraft in eine beliebige andere Position zu bringen. Die andere Position kann eine vorbestimmte Position sein, insbesondere eine solche, die zum Fadenabschneiden geeignet ist.The object is achieved in that the transmission arm is held non-positively on the cam. The force can be with a spring, e.g. B. a mechanical or a gas pressure spring can be applied, but you can also use a lifting cylinder, z. B. apply a pneumatic or hydraulic lifting cylinder. With the frictional connection between the transmission arm and the cam, not only can the pivoting movement of the thread guide lever be precisely controlled, but there is also the possibility of bringing the thread guide lever into any other position at any time with an adjustable or non-adjustable counterforce. The other position can be a predetermined position, in particular one that is suitable for thread trimming.
Erfindungsgemäß kann der Fadenführungshebel fest mit dem Übertragungsarm verbunden sein. Ferner kann der Übertragungsarm an seinem freien Ende eine Rolle zur Anlage an der Kurvenscheibe aufweisen.According to the thread guide lever can be firmly connected to the transmission arm. Furthermore, the transmission arm can have a roller for abutment against the cam disc at its free end.
Im folgenden werden in der Zeichnung dargestellte Ausführungsbeispiele der Erfindung erläutert; es zeigen:
- Fig. 1 schematisch die Ansicht eines Fadenführungshebels mit zugeordnetem Steuerantrieb,
- Fig. 2 eine andere Auführung des Gegenstandes nach Fig. 1.
- 1 schematically shows the view of a thread guide lever with an associated control drive,
- 2 shows another listing of the object according to FIG. 1.
Der in der Zeichnung dargestellte Fadengeber ist für eine Stickmaschine bestimmt, die im einzelnen nicht wiedergegeben ist. Zu dem Fadengeber gehört wenigstens ein Fadenführungshebel 1, der schwenkbar auf einer Achse 2 gelagert ist. Der Fadenführungshebel 1 ist in üblicher Weise im Bereich einer zugeordneten, nicht dargestellten Nadelstange angeordnet. Mit dem Fadenführungshebel 1 ist fest verbunden ein Übertragungsarm 3, der an seinem unteren freien Ende eine Rolle 4 trägt, die an einer Kurvenscheibe 5 anliegt. Die Kurvenscheibe 5 sitzt auf einer nicht dargestellten Hauptwelle, deren Achse 6 angedeutet ist. Die Hauptwelle ist rotierend angetrieben. Bei rotierender Hauptwelle und an der Kurvenscheibe 5 anliegendem Übertragungsarm wird die Schwenkbewegung des Fadenführungshebels 1 nach Maßgabe des Kurvenzuges der Kurvenscheibe 5 gesteuert.The thread feeder shown in the drawing is intended for an embroidery machine that is not shown in detail. The thread feeder includes at least one
Der Übertragungsarm 3 ist kraftschlüssig an der Kurvenscheibe 5 gehalten. Bei der Ausführung nach Fig. 1 ist eine Feder 7 vorgesehen, deren eines Ende am Übertragungsarm 3 angreift und deren anderes Ende bei 8 ortsfest abgestützt ist. Bei der Ausführung nach Fig. 2 ist ein Hubzylinder 9 vorgesehen, dessen Kolbenstange 10 gelenkig am Übertragungsarm 3 angreift und dessen anderes Ende gelenkig am Widerlager 8 gehalten ist. Der Hubzylinder 9 weist Anschlüsse 11 für das Druckmittel auf. Das Druckmittel kann flüssig oder gasförmig sein.The
Um den Fadenführungshebel 1 von der durch die Kurvenscheibe 5 der Hauptwelle induzierten Bewegung abzukoppeln, genügt es, am Übertragungsarm 3 oder am Fadenführungshebel 1 eine entsprechende Gegenkraft angreifen zu lassen, damit der Fadenführungshebel 1 in eine beliebige andere Position, insbesondere eine für das Fadenabschneiden günstige Position, geschwenkt werden kann. Die Gegenkraft kann regelbar oder nicht regelbar sein. Sie kann mit einer nicht dargestellten Einrichtung zum Verschwenken des Fadenführungshebels maschinell sowie unabhängig vom Bewegungszustand der Hauptwelle aufgebracht werden.In order to decouple the
Die Rolle (4) wird durch die Feder über den Fadenführungshebel (1) und über den Übertragungsarm (3) an der Kurvenscheibe (5) gehalten.The roller (4) is held on the cam disc (5) by the spring via the thread guide lever (1) and the transfer arm (3).
Claims (7)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE9011592U DE9011592U1 (en) | 1990-08-09 | 1990-08-09 | Thread take-up for an embroidery machine |
DE9011592U | 1990-08-09 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0471187A1 true EP0471187A1 (en) | 1992-02-19 |
EP0471187B1 EP0471187B1 (en) | 1996-02-07 |
Family
ID=6856353
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP91111544A Expired - Lifetime EP0471187B1 (en) | 1990-08-09 | 1991-07-11 | Thread take up device for an embroidering machine |
Country Status (4)
Country | Link |
---|---|
US (1) | US5213053A (en) |
EP (1) | EP0471187B1 (en) |
KR (1) | KR0186002B1 (en) |
DE (2) | DE9011592U1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19745150A1 (en) * | 1997-10-14 | 1999-04-15 | Zsk Stickmasch Gmbh | Embroidery head |
DE19825784A1 (en) * | 1998-06-10 | 1999-12-16 | Zsk Stickmasch Gmbh | Drive mechanism for the thread guide lever in a multi-head embroidery machine |
CN102454060A (en) * | 2010-10-22 | 2012-05-16 | 杨弟心 | Bow shuttle quilting machine |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20050210991A1 (en) * | 2004-03-23 | 2005-09-29 | C.J. Winter Machine Technologies, Inc. | Method and apparatus for indicating an apparent error in the operation of a fluid-powered thread-forming attachment |
CN102828358A (en) * | 2012-08-27 | 2012-12-19 | 吴江市中盛机械有限公司 | Line-taking lever component for double-needle sewing machine |
CN116180346B (en) * | 2023-03-22 | 2024-10-01 | 福建省和达智能科技有限公司 | Embroidery mechanism of embroidery machine |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2213310A1 (en) * | 1972-03-18 | 1973-09-20 | Kemptener Gmbh Maschf | Yarn take-up - using control cam to determine volume of thread yarn delivered |
DE3923419A1 (en) * | 1988-07-14 | 1990-01-18 | Tokai Ind Sewing Machine | MULTI-HEAD EMBROIDERY MACHINE |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2733619A (en) * | 1956-02-07 | smith | ||
CH82781A (en) * | 1918-11-28 | 1920-01-02 | Johann Duenner | Thread changing device on shuttle embroidery machines |
US1525264A (en) * | 1924-01-28 | 1925-02-03 | Bloom Louis | Embroidery machine |
US2213299A (en) * | 1935-06-14 | 1940-09-03 | Julius Kayser & Company | Multiyarn laying mechanism for knitting machines |
US2237248A (en) * | 1938-02-05 | 1941-04-01 | Honeywell Regulator Co | Control system |
US2748731A (en) * | 1952-07-17 | 1956-06-05 | Irving J Moritt | Sewing machine |
US2863331A (en) * | 1954-06-30 | 1958-12-09 | Katcher Morris | Fuel pump actuating lever |
GB1162830A (en) * | 1966-12-06 | 1969-08-27 | Gen Motors France | Diaphragm Pump Rocker Arms |
US3978688A (en) * | 1976-03-26 | 1976-09-07 | The Singer Company | Folding handles for the carriage of a flat bed knitting machine |
DE3134376A1 (en) * | 1981-08-31 | 1983-03-10 | Rudolf 5450 Neuwied Reich | Thread-guide/repeat-change device |
SE8500404D0 (en) * | 1985-01-29 | 1985-01-29 | Husqvarna Ab | PROVISION OF WIRE ASSEMBLY ON A SEWING MACHINE |
JPS62209266A (en) * | 1986-03-07 | 1987-09-14 | Ckd Corp | Spring gear for cam mechanism |
JPH0728975B2 (en) * | 1987-03-19 | 1995-04-05 | 蛇の目ミシン工業株式会社 | Automatic needle thread hooking device for sewing machine |
-
1990
- 1990-08-09 DE DE9011592U patent/DE9011592U1/en not_active Expired - Lifetime
-
1991
- 1991-07-11 EP EP91111544A patent/EP0471187B1/en not_active Expired - Lifetime
- 1991-07-11 DE DE59107377T patent/DE59107377D1/en not_active Expired - Fee Related
- 1991-08-08 KR KR1019910013683A patent/KR0186002B1/en not_active IP Right Cessation
- 1991-08-09 US US07/743,035 patent/US5213053A/en not_active Expired - Fee Related
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2213310A1 (en) * | 1972-03-18 | 1973-09-20 | Kemptener Gmbh Maschf | Yarn take-up - using control cam to determine volume of thread yarn delivered |
DE3923419A1 (en) * | 1988-07-14 | 1990-01-18 | Tokai Ind Sewing Machine | MULTI-HEAD EMBROIDERY MACHINE |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19745150A1 (en) * | 1997-10-14 | 1999-04-15 | Zsk Stickmasch Gmbh | Embroidery head |
DE19825784A1 (en) * | 1998-06-10 | 1999-12-16 | Zsk Stickmasch Gmbh | Drive mechanism for the thread guide lever in a multi-head embroidery machine |
CN102454060A (en) * | 2010-10-22 | 2012-05-16 | 杨弟心 | Bow shuttle quilting machine |
CN102454060B (en) * | 2010-10-22 | 2012-12-26 | 杨弟心 | Bow shuttle quilting machine |
Also Published As
Publication number | Publication date |
---|---|
DE59107377D1 (en) | 1996-03-21 |
US5213053A (en) | 1993-05-25 |
EP0471187B1 (en) | 1996-02-07 |
DE9011592U1 (en) | 1990-10-18 |
KR0186002B1 (en) | 1999-05-01 |
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