EP0452327A1 - Device and process for automatically joining threads. - Google Patents
Device and process for automatically joining threads.Info
- Publication number
- EP0452327A1 EP0452327A1 EP89910063A EP89910063A EP0452327A1 EP 0452327 A1 EP0452327 A1 EP 0452327A1 EP 89910063 A EP89910063 A EP 89910063A EP 89910063 A EP89910063 A EP 89910063A EP 0452327 A1 EP0452327 A1 EP 0452327A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- thread
- carriage
- threads
- suction bar
- suction
- 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
- 238000000034 method Methods 0.000 title claims description 8
- 238000009940 knitting Methods 0.000 claims description 5
- 239000003550 marker Substances 0.000 claims description 2
- 239000012528 membrane Substances 0.000 claims description 2
- 238000012360 testing method Methods 0.000 claims description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000013461 design Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000005476 soldering Methods 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B15/00—Details of, or auxiliary devices incorporated in, weft knitting machines, restricted to machines of this kind
- D04B15/38—Devices for supplying, feeding, or guiding threads to needles
- D04B15/54—Thread guides
- D04B15/58—Thread guides for circular knitting machines; Thread-changing devices
- D04B15/62—Thread guides for circular knitting machines; Thread-changing devices with thread knotters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H69/00—Methods of, or devices for, interconnecting successive lengths of material; Knot-tying devices ;Control of the correct working of the interconnecting device
-
- 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 invention relates to a device for automatically connecting threads, consisting of a frame with a plurality of thread clamps and a step-by-step horizontally movable carriage on which a thread connecting device is provided, a method for connecting threads and a use of the thread Contraption.
- bobbin changer a device which allows threads to be taken from 50 to 100 bobbins. It is used for the production of a test knitted tube, which is composed of short sections corresponding to the number of bobbins provided (. Stein, Textile Horizons, (1988) pages 40-42). The sample stocking is used for a visual assessment or as a template for a colorimetric evaluation of the sections after it has been colored.
- the object of the invention is to provide an improved device for the automatic, safe change of a large number of threads of different bobbins and their step-wise connection.
- This object is achieved according to the invention by assigning a thread guide tube to each thread clamp at a certain distance perpendicular to the thread pull, said thread guide tube being connected to a vertically movable suction bar.
- the thread is permanently pre-tensioned until it is removed for thread retraction and cannot spring back or evade in any way.
- the thread is expediently held by suction until it is released with a thread separating device.
- the thread guide tubes are fastened in a profile rail, equipped with a thread guide eyelet at the end of the thread inlet and preferably consist of ceramic tubes. This has the advantage that the thread is drawn in cleanly when it is sucked in.
- the segment-by-segment arrangement of the suction blocks has the advantage that a certain number of threads is kept under a constant tension and is generally used with less energy. can be worked.
- Each suction block is equipped with an injector nozzle and a thread discharge hose.
- the lifting plate has the advantage that after the suction bar has been docked onto the thread guide tubes, all thread clamps are relieved of stress by the lifting plate, which enables general thread pulling.
- Pneumatic cylinder arranged to slide, which is connected to the suction bar and can take over the free end of the thread between the entrance of the thread guide tube and the thread clamp.
- the pneumatic cylinder loads the thread clamp before a position shift and only releases it when the threading arm is in the suction position in order to load the next clamp after the position shift.
- Pneumatic pick-up and transport of the thread has proven to be more advantageous and safer than a mechanical gripper arm.
- a thread is expediently threaded into the threading arm by means of an injector mounted at the outlet by suction.
- Both a thread separating device and a thread marker are provided on the carriage itself. After completion of the thread connection, the thread separating device cuts off the "old" thread behind the connection point.
- the suction bar is docked onto the thread guides.
- a change of overlay or supply is to be understood as the change in a creel with new coils.
- the from the old process Cut thread ends lying in the area of the openings of the thread guide tubes are sucked in and through the general release of the thread clamps the new patterns which were connected to the old thread remnant are brought into the operating position by suction.
- the suction bar has been lowered and the thread clamps have been used, the actual work and change process is released.
- all thread clamps are thus relieved by the lifting plate.
- the thread clamps are activated to prevent unthreading.
- FIG. 1 shows a perspective view of the device according to the invention
- FIG. 2 shows a top view of the device
- FIG. 3 shows a lowered position of the suction bar.
- FIG. 4 shows a detailed view of the device according to FIG. 1
- a frame is shown in FIG. 1 with reference number 1.
- a carriage 2 which is movable by an electric motor 3 and a toothed belt 4 is provided.
- Thread clamps 5 and thread guide tubes 6 are arranged in frame 1.
- Thread guides, not shown, are each tensioned by a spool of a gate, of which only threads 7, 7 'are marked.
- a thread connecting device 8, a thread separating device 9, a threading arm 11 and a thread monitor 14 are arranged on the carriage 2.
- the thread connecting device 8, in the present case a splicer has a slot 12 and a slot 13.
- a thread 15 consists of the thread 7, respectively. after this Compound of thread 7 ".
- a thread separating element 22 is provided for the release of thread 7.
- FIG. 2 parallel threads coming from a gate are shown and because of the overview only the threads 7,7 'are designated.
- the thread 7 is already connected to the thread 15 and lies in the slot 13 from which the thread remainder 15 'is sucked off after the cutting with the thread separating device 9.
- a new thread 7 is in the slot 12 and is connected to the thread 15.
- the thread 15 passes through a thread guide 20 and 21 arranged in front of and behind the thread monitor 14.
- the threading arm 11 is shown with its mouth between the thread guide tube 6.
- FIG 3 shows three sections 10 ', 10''and 10 *' 1 of the suction bar 10.
- Each suction bar 10 includes a piston 17 with a flexible air connection, not shown.
- the suction bar 10 is displaceable in the vertical direction, indicated by a double arrow.
- the thread separating element 22 serves to release the threads 7.
- a soldering iron can serve as the thread separating element 22.
- the thread separating device 9 and lifting cylinder 23 attached to the carriage 2.
- the threads 7 held by the suction bar 10 are released individually by the thread separating device 9 due to the gradual displacement of the carriage 2.
- the released thread piece 7 can be taken over by the threading arm 11 by suction.
- the threading arm 11 can feed the thread into the thread connecting device 8.
- the lifting cylinder 23 is for the actuation of a thread clamp me 5; see a lifting plate 24 for all thread clamps 5.
- threads 7 are held by thread clamps 5 and guided over thread guide tubes 6 before starting.
- the threads 7 hang down about 10 cm with their free ends.
- the connected thread 15 leads through the thread connecting device 8 and past the thread monitor 14, for example to a circular knitting machine, not shown.
- the threading arm 11 pivots towards the thread clamp 5, and the thread 7 is drawn in by the threading arm 11.
- the thread clamp 5 is raised pneumatically by the piston 17; the thread 7 is pulled into the slot 12.
- the thread connecting device 8 for example a thread splicer, is actuated and the thread is connected to the thread 15 of the knitting machine by a gate (not shown).
- the knitting machine is started and stopped again after a predetermined time, corresponding to the size of the desired knitting section.
- the piston 17 is vented and the thread 7 is thus held again by the thread clamp 5.
- the thread 7 is changed by the thread lifter 18 from the slot 12 into the slot 13 and separated after the thread connection by means of the thread separating device 9.
- a pair of scissors or a soldering iron can serve as the thread separating device 9.
- the thread connecting device 8 mounted on the carriage 2 is moved by the motor 3 to the next thread location, as a result of which the cycle with the thread 7 ′ starts again.
- the device according to the invention makes it possible to carry out thread take-off according to selectable lengths from a large number of spools.
- a splicer or knotter known per se, it is possible for the first time, depending on the design of the machine size, to connect more than 100 supply bobbins, the threads of which are pre-sorted in the device, fully automatically.
- the number of change positions can be predetermined for the machine.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Spinning Or Twisting Of Yarns (AREA)
- Replacing, Conveying, And Pick-Finding For Filamentary Materials (AREA)
- Knitting Machines (AREA)
- Sewing Machines And Sewing (AREA)
Abstract
Dans un dispositif de liaison d'un grand nombre de fils des bobines d'un râtelier, un tube (6) de guide-fil associé à chaque pince de fil (5) est relié à une barre (10) d'aspiration verticalement mobile par rapport au chariot (2).In a device for connecting a large number of wires from the coils of a rack, a wire guide tube (6) associated with each wire clamp (5) is connected to a vertically movable suction bar (10) relative to the carriage (2).
Description
Claims
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/CH1989/000172 WO1991004217A1 (en) | 1989-09-19 | 1989-09-19 | Device and process for automatically joining threads |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0452327A1 true EP0452327A1 (en) | 1991-10-23 |
EP0452327B1 EP0452327B1 (en) | 1994-02-16 |
Family
ID=4545682
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP89910063A Expired - Lifetime EP0452327B1 (en) | 1989-09-19 | 1989-09-19 | Device and process for automatically joining threads |
Country Status (6)
Country | Link |
---|---|
US (1) | US5297323A (en) |
EP (1) | EP0452327B1 (en) |
JP (1) | JPH07110745B2 (en) |
KR (1) | KR920702843A (en) |
DE (1) | DE58907018D1 (en) |
WO (1) | WO1991004217A1 (en) |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4118130A1 (en) * | 1991-06-03 | 1992-12-10 | Alkotex Srl | THREAD PROCESSING MACHINE, ESPECIALLY EMBROIDERY MACHINE WITH A THREAD CHANGING DEVICE |
CH687541A5 (en) * | 1992-04-18 | 1996-12-31 | Staeubli Ag | Method and apparatus for simplified warp change. |
EP0591570B1 (en) * | 1992-10-09 | 1998-06-17 | ALKOTEX S.r.l. | Yarn working machine, particularly embroidering machine with yarn changing apparatus |
DE69419858T2 (en) * | 1993-08-26 | 2000-04-13 | Murata Kikai K.K., Kyoto | Thread winding transport system |
US5603462A (en) * | 1993-09-09 | 1997-02-18 | Melco Industries, Inc. | Changing threads in a sewing machine |
EP0644148A1 (en) * | 1993-09-16 | 1995-03-22 | SAXONIA UMFORMTECHNIK GmbH | Thread-processing machine with a thread change mechanism |
JP3522866B2 (en) * | 1994-12-28 | 2004-04-26 | アイシン精機株式会社 | sewing machine |
DE19525434C2 (en) * | 1995-07-12 | 1999-04-01 | Saxonia Umformtechnik Gmbh | Thread or Yarn clamping |
IT1305975B1 (en) * | 1998-11-06 | 2001-05-23 | 3 T S R L | EQUIPMENT FOR THE AUTOMATIC CHANGE OF THE FEED SPOOLS OF THE WEFT WIRE IN A TEXTILE FRAME, AND RELATED METHOD. |
US6073434A (en) * | 1999-12-27 | 2000-06-13 | Williams Specialty Company | Multiple yarn end pneumatic splicer |
BE1013733A3 (en) * | 2000-10-03 | 2002-07-02 | T Sas Fran Ois | DEVICE FOR THE AUTOMATIC CHANGE OF THREAD MATERIALS IN A THREAD PROCESSING MACHINE. |
US7425591B2 (en) * | 2001-10-16 | 2008-09-16 | Exxonmobil Chemical Patents Inc | Elastomeric composition |
EP1411015B1 (en) * | 2002-10-15 | 2008-04-23 | Murata Kikai Kabushiki Kaisha | Yarn-processing system |
ITUD20020242A1 (en) * | 2002-11-19 | 2004-05-20 | Sergio Zamattio | PREPARATION PROCEDURE FOR SUPPORTS FOR MIXED YARNS, RELATED DEVICE AND SUPPORT OBTAINED WITH SUCH PROCEDURE AND DEVICE |
EP1524341A1 (en) * | 2003-10-13 | 2005-04-20 | Benninger AG | Process and device for changing threads, particularly for the creel or a warping machine |
US7103945B2 (en) * | 2004-02-11 | 2006-09-12 | Williams Specialty | Machine for joining yarns |
TWI294928B (en) * | 2005-12-20 | 2008-03-21 | Cci Tech Inc | Acolor changing method in a warping machine with yam changing unit |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1519804A (en) * | 1923-11-26 | 1924-12-16 | Sieber Gottwalt | Thread-conducting device for gripper looms |
US2544435A (en) * | 1948-07-28 | 1951-03-06 | Crompton & Knowles Loom Works | Method of preparing yarn spools and tube frames for axminster looms |
DE807619C (en) * | 1949-10-02 | 1951-07-02 | Max Poege | Thread clamp for weaving machines, especially for warps |
US2728132A (en) * | 1953-10-26 | 1955-12-27 | Alexander Smith Inc | Axminster setting frame |
US3714799A (en) * | 1970-12-28 | 1973-02-06 | Americal Corp | Yarn control apparatus and method for circular hosiery knitting machines |
DE2531734C2 (en) * | 1975-07-16 | 1983-12-22 | Sulzer Morat Gmbh, 7024 Filderstadt | Thread guidance on loop-forming machines with revolving thread guides |
JPS5838548B2 (en) * | 1976-08-09 | 1983-08-23 | 東レ株式会社 | How to collect test thread |
DE2831242C3 (en) * | 1978-07-15 | 1981-03-19 | Bayer Ag, 5090 Leverkusen | Device for the automatic production of thread composed of samples of different bobbins |
DE3235135A1 (en) * | 1982-09-23 | 1984-03-29 | W. Schlafhorst & Co, 4050 Mönchengladbach | TENSILE CONNECTING POINT ON CONTINUOUS FIBER SPREADS, METHOD FOR PRODUCING THE CONNECTING POINT AND DEVICE FOR CARRYING OUT THE METHOD |
DE3336202A1 (en) * | 1983-10-05 | 1985-04-25 | Textechno Herbert Stein GmbH & Co KG, 4050 Mönchengladbach | Process and apparatus for the connection of yarn-like materials |
DE3339331A1 (en) * | 1983-10-29 | 1985-05-09 | Hacoba Textilmaschinen Gmbh & Co Kg, 5600 Wuppertal | THREAD KNOTING DEVICE |
CH664776A5 (en) * | 1985-06-21 | 1988-03-31 | Stoll & Co H | YARN SELECTION DEVICE FOR KNITTING MATERIAL. |
DE3619105A1 (en) * | 1986-06-06 | 1987-12-10 | Christian Schwabe | Thread-changing method for textile machines |
-
1989
- 1989-09-19 US US07/675,901 patent/US5297323A/en not_active Expired - Fee Related
- 1989-09-19 WO PCT/CH1989/000172 patent/WO1991004217A1/en active IP Right Grant
- 1989-09-19 EP EP89910063A patent/EP0452327B1/en not_active Expired - Lifetime
- 1989-09-19 JP JP1506095A patent/JPH07110745B2/en not_active Expired - Lifetime
- 1989-09-19 DE DE89910063T patent/DE58907018D1/en not_active Expired - Fee Related
- 1989-09-19 KR KR1019910700504A patent/KR920702843A/en not_active Application Discontinuation
Non-Patent Citations (1)
Title |
---|
See references of WO9104217A1 * |
Also Published As
Publication number | Publication date |
---|---|
KR920702843A (en) | 1992-10-28 |
WO1991004217A1 (en) | 1991-04-04 |
US5297323A (en) | 1994-03-29 |
EP0452327B1 (en) | 1994-02-16 |
JPH04503346A (en) | 1992-06-18 |
DE58907018D1 (en) | 1994-03-24 |
JPH07110745B2 (en) | 1995-11-29 |
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