EP0799339A1 - Ribbon loom - Google Patents
Ribbon loomInfo
- Publication number
- EP0799339A1 EP0799339A1 EP95940108A EP95940108A EP0799339A1 EP 0799339 A1 EP0799339 A1 EP 0799339A1 EP 95940108 A EP95940108 A EP 95940108A EP 95940108 A EP95940108 A EP 95940108A EP 0799339 A1 EP0799339 A1 EP 0799339A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- weft
- weft thread
- ribbon loom
- needle
- loom according
- 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
Classifications
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D47/00—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms
- D03D47/34—Handling the weft between bulk storage and weft-inserting 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
- B65H51/00—Forwarding filamentary material
- B65H51/20—Devices for temporarily storing filamentary material during forwarding, e.g. for buffer storage
- B65H51/205—Devices for temporarily storing filamentary material during forwarding, e.g. for buffer storage by means of a fluid
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D35/00—Smallware looms, i.e. looms for weaving ribbons or other narrow fabrics
-
- 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 ribbon loom according to the preamble of claim 1.
- Ribbon weaving machines of the type mentioned at the outset are known in a variety of forms, for example from GB-B-2 039 547.
- the ribbon weaving machine contains a weft insertion needle to which a weft thread feed device is assigned which, viewed in the running direction of the weft thread, contains a weft thread source le, a weft brake, a weft conveying device and a weft compensation device.
- the weft compensation device is formed by a leg spring that oscillates back and forth between a first and a second position. In the first position, the leg spring releases the weft thread for inserting a weft thread loop into a shed using the weft insertion needle.
- the leg spring assumes the second position, in which it receives a weft thread supply and finally clamps the weft thread in a gap formed by a leaf spring in order to prevent further conveyance.
- the weft thread is tensioned again and the leg spring is removed from the second moved to the first position, at the same time the weft is released from the clamping leaf spring.
- This compensation device has the disadvantage that it is relatively sluggish, sc. That a belt loom equipped with it is limited in its drive speed, the insertion and removal of the weft thread on the braking leaf spring further limiting the performance of the belt loom.
- Ribbon looms with such mechanical compensation devices have the disadvantage that their performance, that is to say their maximum speed, is limited to 2,500 rpm. If such a belt loom is operated at a higher speed, serious problems arise.
- the leg springs can break and / or they come into a critical vibration range in which the tension of the weft thread can no longer be controlled. Natural vibrations and inertia forces require a higher spring force, which can be greater than the tearing force of the weft thread to be processed. As a result of the necessary greater leg spring force, the service life of the tongue knitting needles drops to 1/2 hour.
- tongue knitting needles also called tongue needles.
- tongue knitting needles are only suitable up to speeds of 2,500 rpm. At higher speeds, breaks occur on the hooks and tongues as a result of the high acceleration when the tongues are turned.
- the service life of the tongue knitting needles at speeds of 2,500 to 4,000 rpm is approximately 1 to 4 hours, which is not practical in practice. Presentation of the invention
- the object of the invention is to design a ribbon loom of the type mentioned in the introduction in such a way that it enables higher performance.
- the compensation device is designed to operate pneumatically as a blowing and / or suction device results in a ribbon loom, the weft thread compensation device of which is practically massless or is limited to the mass of the weft thread to be treated.
- the tension of the weft thread can thus be kept absolutely constant and at its lowest value, whereby this tension can be subtly adapted to the conditions given by the weft thread material and / or the weaving conditions by means of preferably adjustable components of the feed device.
- the retraction tension required for a perfect ribbon weaving machine for the inserted weft thread loop can thus be exactly maintained and the magnitude of the tension can be regulated by a preferably adjustable guide eye. This opens up new dimensions for the performance of a belt loom, which, in contrast to the known belt looms, can now be operated at a significantly higher speed of 3,000 to 6,000 rpm, for example.
- a configuration according to claim 2 is particularly advantageous, as a result of which the stretching of the weft thread can be adjusted according to claim 12 by means of the guide eyelet.
- the one according to is particularly advantageous Claim 3, since the chamber ensures an exact guidance of the weft thread, so that the action of the air flow on the weft thread can also be exactly determined and controlled.
- a preferred embodiment of the chamber is described in claim 4.
- the development according to claim 5 improves the monitoring of the weft thread in the chamber.
- Claim 6 describes a further possibility of designing the compensation device.
- the configurations of the ribbon loom according to claims 7 to 9 contribute to a more subtle control of the weft thread and thus the adaptation to the thread quality on the one hand and the weaving conditions on the other hand.
- the feed device for the weft thread is advantageously adjustable in such a way that the weft thread is stretched both when the weft insertion needle is extended and when it is retracted. As a result, not only is the weft thread supply required when the weft thread is inserted particularly small, but also any vibrations of the weft thread during the insertion cycle are prevented, which would put a strain on the weft thread and would impair the weaving process.
- the stretching of the weft thread is preferably adjusted by means of the weft thread conveying device when the weft insertion needle is retracted and extended.
- the stretching of the weft thread when the weft insertion needle is extended and retracted is preferably carried out by means of the guide eye according to claim 12, the selvedges are always tensioned to the set bandwidth and kept at an exactly constant width.
- a wide variety of knitting needles can be used to tie the weft thread loop after it has been entered into the shed up to the current speeds (up to 3,000 rpm) of the ribbon looms Switch needles and crochet needles.
- the pusher knitting needle, or pusher needle for short is practically the only construction element which not only enables perfect function but also offers the required service life. Since the slide needle has no tongue, the problems associated therewith are completely eliminated.
- the arrangement with a common pivot axis according to claim 14 for the hook and the slide part enables an exact running of both parts. The wear is practically completely eliminated.
- the two parts can also be adjusted very precisely to one another and the value once set is kept constant during the operation of the belt loom.
- the safety of the weft thread and any auxiliary thread is flawlessly given at the highest speed, since the slide needle is inevitably opened and closed. It when the slide needle is configured according to claim 15 is particularly advantageous.
- FIG. 1 shows the weft feeding device of a ribbon loom in the illustration in the manner of a block diagram with the weft insertion needle extended;
- FIG. 2 shows the weft feed device of FIG. 1 with a modified knitting needle and when the weft thread begins to be inserted
- FIG. 3 shows the weft feed device of FIG. 2 with the weft loop inserted
- Figure 4 shows a first weft compensating device in a schematic representation
- FIG. 5 shows a second weft compensating device in a schematic representation
- FIG. 6 shows a third weft compensating device in cross section to the running direction of the weft
- FIG. 7 the weft compensation device of FIG. 6 in section VII-VII of FIG. 6;
- Figure 8 shows a needle device
- FIG. 9 the head of the slide needle in the opened state, in section along the slide and on a larger scale
- Figure 10 shows the head of the pusher needle
- Figure 11 shows the head of the needle of the figure
- FIGs 1 to 3 show essential components of a ribbon loom in the manner of a block diagram in different operating states of the weft insertion needle.
- the belt weaving machine has a reed 2, which strikes a weft loop 4, which has been inserted into a shed made of warp threads 6, against a fabric edge 10.
- the side of the material web 16 that is to say the manufactured tape, facing away, a knitting needle 18 is arranged, which serves to bind the weft loop 4.
- the knitting needle is designed as a latch needle and in Figures 2 and 3 as a sliding needle 18a, which is further explained below with reference to Figures 8 to 11.
- a weft thread 20 is fed to the weft insertion needle 12 by means of a feed device 22.
- a weft thread bobbin serves as the weft thread source 24, from which the weft thread 20 arrives, for example via an adjustable thread brake 26, to a conveying device 28 which continuously conveys the weft thread 20 at an adjustable speed. From there, the weft thread reaches a pneumatically operating compensation device 32 via a preferably optically designed weft monitor 30 and further via a position-adjustable guide eyelet 34 to the weft insertion needle 12.
- the weft monitor can also be connected downstream of the compensation device 32.
- the pneumatically operating compensating device 32 has a blowing device 36 and / or suction device 38 which interacts with the weft thread.
- the blowing device 36 contains a blowing nozzle 40, which is connected to a line 42 via a Blower device 44 is connected, which generates compressed air 45.
- the suction device 38 is equipped with a suction nozzle 46, which is connected via a line 48 to the suction side of a blower device 50 and generates suction air 49.
- the compensating device 32 is shown both with a blowing device 36 and with a suction device 38, wherein the suction air 49 is formed by sucked in ambient air 51.
- FIGS. 2 and 3 only one suction device 38 is used, which is described in more detail with reference to FIGS. 6 and 7.
- the pneumatic compensation device 32 serves on the one hand to accommodate a supply of weft threads, which is caused by the intermittent weft thread withdrawal when the weft thread loop is introduced into the shed.
- the compensating device also serves to give the weft the tensile stress required for the insertion of the weft loop into the shed.
- the weft insertion needle is in the extended position, in which the weft thread forms a retraction loop 54 between the fabric edge 52 and the guide eye 34 for tightening the knitting loop 56.
- the weft loop 4 entered in the shed 8 is also struck on the edge 10 of the goods.
- the insertion movement of the weft insertion needle 12 also begins when the reed 2 is pivoted back.
- FIG. 2 shows the position of the weft insertion needle as it passes through the guide eyelet 34 before the insertion of the weft thread loop
- the components of the feed device and in particular the compensating device 32 are set such that the weft thread runs in a straight line between the guide eye 34 and the fabric edge 52, the excess length of the weft thread being absorbed by the compensating device 32.
- Dashed lines indicate how the weft thread course 58 would be if there was insufficient weft thread tension.
- the conveyor 28 is set in such a way that at this stage a weft thread supply 60 has formed in the compensation device 32, which is used up during the insertion of the weft thread loop into the shed shown in FIG. In the phase shown in FIG.
- the weft insertion needle has inserted the weft thread loop 4 into the shed 8 in such a way that the weft thread for stitch formation is inserted into the knitting needle 18a when the weft thread loop is tied.
- the components, in particular the compensating device 32 of the feed device 22 are set such that the weft thread loop with elongated legs 62, 64 lies in the shed 8.
- No weft thread 20 is required when the weft insertion needle 12 extends from the shed 8.
- the constantly operating conveyor device 28 on the other hand, continuously delivers weft thread, which is taken up by the compensation device as a weft thread supply 60 and is kept ready for the next weft cycle.
- the individual components of the feed device 32 can be matched to one another by means of a suitable control device, which is not shown in detail and which can contain a computer.
- FIG. 4 shows a compensation device 32 designed as a blowing device 36, in which the blowing nozzle 40 acts on the weft thread 20, which is guided between two guides 66, 68, which are arranged in a flat chamber analogous to the chamber 82 shown in FIGS. 6 and 7 could be.
- FIG. 5 shows a further compensation device 32a, in which the weft thread 20 is guided in a channel section 70, in which a blowing nozzle 72 opens and at an angle such that the blowing air flow 74 is directed against the running direction 76 of the weft thread.
- the weft thread can then form a weft thread supply 78 between the end of the channel section 70 and a guide 80.
- FIGS. 6 and 7 show the compensating device 32 used in FIGS. 1 to 3, which is designed as a suction device 38.
- the suction device contains a flat chamber 82, which has a weft thread feeder 86 on one narrow side 84 and a weft thread discharge 88 on the other narrow side.
- the width B of the chamber is preferably such that it is equal to or less than 50 times the thickness D of the weft thread 20.
- the length C of the chamber is greater than the width B.
- the flat chamber 82 of the suction nozzle 46 goes into the line 48 over.
- the chamber 82 is equipped on the open side with a weft monitor 90 which points in the flow direction 92 of the suction air flow by means of a monitoring beam 91 of a diode in order to monitor the weft 20 or a weft supply 60. Is sucked by means of a known suction pump, not shown.
- FIGS 8 to 11 show a slide needle device, the basic structure of which is known for example from CH-PS 644 163.
- the slide needle 18a consists of a needle head 94 with a hook 96 which is arranged on a hollow needle shaft 98. The latter is attached to a hook lever 100, which is connected to a hollow shaft 102, which carries out the required pivoting movement.
- the pusher needle contains the pusher 104 which is guided through the hollow shaft 98 and which is fastened to a pusher lever 106 which is in turn arranged on a shaft 108 which lies in the hollow shaft 102 and ensures the reciprocating movement of the pusher 104 .
- FIG. 8 also shows the assignment of the slide needle 18a to the shed 8, which is formed by the warp threads 6, and to the weft insertion needle 12 and to the reed 2.
- the needle head 94 is in the open, for receiving a weft loop 4 suitable position shown.
- the sliding needle 18a is closed for forfeiting, as can be seen from FIG.
- the hook 96 of the slide needle 18a on the side facing away from the weft insertion needle or the web 16 is inclined at an angle of 0 ° to 180 ° to the plane of movement 112 of the slide needle 18a.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Looms (AREA)
- Air Bags (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE9420562U DE9420562U1 (en) | 1994-12-22 | 1994-12-22 | Ribbon loom |
DE9420562U | 1994-12-22 | ||
PCT/CH1995/000301 WO1996019604A1 (en) | 1994-12-22 | 1995-12-19 | Ribbon loom |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0799339A1 true EP0799339A1 (en) | 1997-10-08 |
EP0799339B1 EP0799339B1 (en) | 1999-04-14 |
Family
ID=6917800
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP95940108A Expired - Lifetime EP0799339B1 (en) | 1994-12-22 | 1995-12-19 | Ribbon loom |
Country Status (9)
Country | Link |
---|---|
US (1) | US5878787A (en) |
EP (1) | EP0799339B1 (en) |
JP (1) | JPH10511435A (en) |
AU (1) | AU4170296A (en) |
DE (2) | DE9420562U1 (en) |
ES (1) | ES2130682T3 (en) |
RU (1) | RU2129174C1 (en) |
TR (1) | TR199501674A2 (en) |
WO (1) | WO1996019604A1 (en) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE9420562U1 (en) * | 1994-12-22 | 1995-02-16 | Textilma Ag, Hergiswil | Ribbon loom |
DE29514298U1 (en) * | 1995-09-06 | 1995-10-26 | Textilma Ag, Hergiswil | Weaving machine |
ES2328693T3 (en) * | 2004-06-03 | 2009-11-17 | Textilma Ag | INSERTION NEEDLE OF FRAME THREAD FOR A RIBBON ROPE MACHINE WITH NEEDLE. |
DE102004059780B4 (en) * | 2004-12-07 | 2020-10-15 | Kikuchi Kogyo Co., Ltd. | Process for the production of a tape woven on needle looms with the same edges in terms of weaving technology |
CA2623527A1 (en) * | 2005-10-06 | 2007-04-12 | Textilma Ag | Method and needle ribbon weaving machine for weaving a ribbon |
ATE455198T1 (en) * | 2006-05-04 | 2010-01-15 | Textilma Ag | RIBBON WEAVING MACHINE |
TW200825231A (en) * | 2006-09-05 | 2008-06-16 | Textilma Ag | Ribbon needle loom |
CN102454005A (en) * | 2010-10-29 | 2012-05-16 | 苏州丽丝兰时装有限公司 | Rotary ribbon loom |
DE202011051959U1 (en) | 2011-11-14 | 2012-01-16 | Textilma Ag | Pneumatic thread tensioner |
RU2602766C1 (en) * | 2015-07-08 | 2016-11-20 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Владивостокский государственный университет экономики и сервиса" (ВГУЭС) | Optoelectronic device for estimating parameters of threads slippage of textile materials |
DE102019103193A1 (en) * | 2019-02-08 | 2020-08-13 | Saurer Spinning Solutions Gmbh & Co. Kg | Thread storage tube for a workstation of a textile machine and workstation of a textile machine |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2469202A (en) * | 1948-05-01 | 1949-05-03 | Harry Dexter Peck | Loom attachment for weaving ladder webbing |
NL6700828A (en) * | 1967-01-18 | 1968-07-19 | ||
AT308022B (en) * | 1969-06-21 | 1973-06-25 | Luigi Castelli | Yarn conveyor for textile machines |
CH502459A (en) * | 1969-07-22 | 1971-01-31 | Rueti Ag Maschf | Device for influencing a thread |
NL7600569A (en) * | 1976-01-20 | 1977-07-22 | Rueti Te Strake Bv | WEAVING MACHINE WITH A PNEUMATICALLY OPERATED BUFFER DEVICE FOR THE WASHING YARN. |
FR2352086A1 (en) * | 1976-05-17 | 1977-12-16 | Saurer Diederichs Sa | DEVICE FOR RETENTING A WEFT YARN ON FEEDING IN A WEAVING MACHINE WITHOUT SHUTTLE |
NL7611646A (en) * | 1976-10-21 | 1978-04-25 | Rueti Te Strake Bv | SPOOLLESS WEAVING MACHINE. |
JPS5516942A (en) * | 1978-07-18 | 1980-02-06 | Yoshida Kogyo Kk | Weft yarn tensioning apparatus |
AT363394B (en) * | 1978-11-24 | 1981-07-27 | Saurer Ag Adolph | METHOD FOR REMOVING THE Weft Yarn In Weaving Machines And Device For Carrying Out The Method |
GB2039547B (en) * | 1979-01-18 | 1983-08-17 | Bonas Machine Co | Yarn feed controlling device |
CH650291A5 (en) * | 1980-03-04 | 1985-07-15 | Textilma Ag | Weaving machine |
FR2495196A1 (en) * | 1980-11-28 | 1982-06-04 | Alsacienne Constr Meca | METHOD AND DEVICE FOR FORMING A FRAME WIRE RESERVE FOR WEAVING |
DE3341042A1 (en) * | 1983-07-25 | 1985-02-07 | Textilma Ag, Hergiswil | DEVICE FOR FEEDING AND CONTROLLING A THREAD FOR A TEXTILE MACHINE, IN PARTICULAR A WEAVING MACHINE |
DE9420562U1 (en) * | 1994-12-22 | 1995-02-16 | Textilma Ag, Hergiswil | Ribbon loom |
-
1994
- 1994-12-22 DE DE9420562U patent/DE9420562U1/en not_active Expired - Lifetime
-
1995
- 1995-12-19 ES ES95940108T patent/ES2130682T3/en not_active Expired - Lifetime
- 1995-12-19 RU RU97112207A patent/RU2129174C1/en not_active IP Right Cessation
- 1995-12-19 EP EP95940108A patent/EP0799339B1/en not_active Expired - Lifetime
- 1995-12-19 DE DE59505677T patent/DE59505677D1/en not_active Expired - Lifetime
- 1995-12-19 AU AU41702/96A patent/AU4170296A/en not_active Abandoned
- 1995-12-19 WO PCT/CH1995/000301 patent/WO1996019604A1/en active IP Right Grant
- 1995-12-19 JP JP8519393A patent/JPH10511435A/en active Pending
- 1995-12-19 US US08/860,264 patent/US5878787A/en not_active Expired - Lifetime
- 1995-12-22 TR TR95/01674A patent/TR199501674A2/en unknown
Non-Patent Citations (1)
Title |
---|
See references of WO9619604A1 * |
Also Published As
Publication number | Publication date |
---|---|
US5878787A (en) | 1999-03-09 |
DE9420562U1 (en) | 1995-02-16 |
JPH10511435A (en) | 1998-11-04 |
WO1996019604A1 (en) | 1996-06-27 |
ES2130682T3 (en) | 1999-07-01 |
TR199501674A2 (en) | 1996-07-21 |
RU2129174C1 (en) | 1999-04-20 |
EP0799339B1 (en) | 1999-04-14 |
AU4170296A (en) | 1996-07-10 |
DE59505677D1 (en) | 1999-05-20 |
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