WO2002036475A1 - Fadenliefergerät - Google Patents
Fadenliefergerät Download PDFInfo
- Publication number
- WO2002036475A1 WO2002036475A1 PCT/EP2001/012546 EP0112546W WO0236475A1 WO 2002036475 A1 WO2002036475 A1 WO 2002036475A1 EP 0112546 W EP0112546 W EP 0112546W WO 0236475 A1 WO0236475 A1 WO 0236475A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- storage body
- ring support
- housing
- thread
- permanent magnets
- Prior art date
Links
Classifications
-
- 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
- B65H51/22—Reels or cages, e.g. cylindrical, with storing and forwarding surfaces provided by rollers or bars
-
- 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
- D04B15/48—Thread-feeding devices
- D04B15/482—Thread-feeding devices comprising a rotatable or stationary intermediate storage drum from which the thread is axially and intermittently pulled off; Devices which can be switched between positive feed and intermittent feed
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2555/00—Actuating means
- B65H2555/20—Actuating means angular
- B65H2555/23—Actuating means angular magnetic, e.g. rotary solenoids
Definitions
- the invention relates to a yarn delivery device specified in the preamble of claim 1.
- a yarn delivery device known from EP 0 370 066 has on its housing the storage body which can be freely rotated on the winding shaft and which is held magnetically stationary against rotation by permanent magnets in the housing and permanent magnets aligned thereon in the storage body.
- the permanent magnets act magnetically through a gap between the housing and the storage body, in which gap a winding element rotates with the winding shaft.
- An annular thread brake interacts with the storage drum in contact.
- the housing bracket supports an axial trigger eye and a suction nozzle structure.
- the thread brake is attached to the ring support and can be adjusted axially with it in order to allow a passage for threading a new thread by means of a pneumatic threading system from the winding element into the take-off eye.
- the storage body requires a special shape to accommodate the permanent magnets and complex structural measures are required in the housing. Access to the storage body is severely restricted in the threading position.
- the yarn delivery device known from WO 92/19524 has on the housing a storage body which can be driven to rotate and in whose front end a brush brake is integrated.
- a boom is mounted on the housing, on which a conical hollow body is attached by means of an arm.
- a swivel joint and a coupling for moving the conical hollow body between the operative position and an offset position are provided in the arm.
- the conical body In the operative position, the conical body is aligned coaxially with the storage drum and slipped over the storage body front end with a peripheral gap.
- the conical hollow body is moved away from the storage body by an axial and a rotary movement in order to expose access to the storage body.
- the conical hollow body In order to rotate the conical hollow body synchronously with the rotation of the storage body, the conical hollow body is held in a pivot bearing of the arm. Furthermore, magnetically interacting permanent magnets are provided on the outside of the conical body and on the inside in the storage body. seen that drag the conical hollow body with rotation of the storage body.
- a thread delivery device for knitting machines from Memminger-Iro GmbH, DE is known on the market under the type designation SFE (shown in FIG. 4 in EP 0 658 507 A), which has a characteristic design and a rotatably drivable storage body with a storage body fixed to the housing Boom associated optoelectronic thread scanning device.
- the SFE thread delivery device is compact, with the storage of the storage body in the housing being partly integrated into the drive motor. This construction principle can only be realized with the rotating storage body.
- the SFE thread delivery device has proven itself extremely well, in practice on modern knitting machines occasional operating conditions occur with such high thread speeds or thread speed variations that the construction concept with the rotating drive storage body and with rotating brake element for various reasons, e.g. too high thread tension, finds its limit. With this construction concept, for example, a low and constant thread tension at high thread speed would be desirable, but this would require fundamental modifications.
- the invention has for its object to provide a thread delivery device, in particular for knitting machines with high thread speed, which is characterized by a compact design, is user-friendly also with regard to threading the new thread, and easily copes with high thread speeds.
- Part of the task is to design the yarn delivery device according to the invention in a largely adaptation to the design of the known SFE delivery device using a large number of components unchanged compared to the SFE delivery device for applications in which, for example, high yarn speed, widely varying consumption and / or sensitive thread qualities a rotary driven body is no longer up to date.
- the thread delivery device is compact, since in the area of the rotary bearing of the winding shaft in the housing, no structural measures are required to hold the storage body against rotating with the winding shaft, but essentially the space that is available anyway at the front end of the storage body is used for this.
- the ring support serves to support the thread brake, which, like the storage body, is essentially stationary and therefore can also cope with very high thread speeds, and also to accommodate the permanent magnets, which interact with permanent magnets placed in the area of the front end of the storage body that can be used anyway and the storage body set stationary.
- the mobility of the ring support relative to the housing or to the housing-fixed extension arm is expedient in order to enable, for example, the exchange of the thread brake in the service position and / or to provide unimpeded access (threading position) to the storage body for threading a new thread.
- the stationary storage body with the stationary thread brake in particular a user-friendly straw ring, enables problem-free processing and twist-sensitive thread material and at high thread speeds of up to approx. 1200 m / min and / or greatly varying consumption.
- a thread delivery device can be created using a multiplicity of components of the SFE yarn delivery device, the external appearance of which is similar to that of the SFE yarn delivery device and has essentially the same compact dimensions as this. Modifications are essentially required in the area of the front end of the storage body.
- the compactness of the thread delivery device is of particular advantage, since usually a very large number of such thread delivery devices are to be arranged in close proximity to one another in a knitting machine, with time losses when threading a new thread being avoided by the good accessibility in the threading position of the ring support.
- the ring support is expediently held in a swivel mounting of the housing or the housing arm so that it can be moved back and forth with an arcuate movement path. This enables convenient one-handed operation. However, it is not out of the question to pivot the ring support away and turn it sideways or pull it axially away.
- a stable and space-saving storage of the ring support results with a swivel bearing at the free end of the boom fixed to the housing and an axis that is perpendicular, preferably even tangential, to the axis of the storage body, and with stops that in the operative position of the ring support the mutual attraction of the Uses permanent magnets for positioning.
- An arm holding a trigger eyelet is expediently provided on the ring support and is simultaneously used as an operating handle for adjusting the ring support.
- a version open to the storage body for, e.g. Loosely applied thread brake enables the thread brake to be replaced quickly, e.g. a straw ring, which may do without additional holding means.
- the ring support In order to ensure the multiple function of the ring support in the smallest of spaces, the ring support should be designed as a truncated cone ring, in the small-diameter end area of which the permanent magnets are placed in a ring arrangement, and the free front end of the storage body, which has the other permanent magnets, should be frustoconical. In this way, the gap between the interacting permanent magnets for undisturbed thread passage can be formed far enough and still generate a high rotational holding force for the storage body.
- rotational positions of the storage body in which the sensor device finds optimal working conditions can be predetermined by placing the permanent magnets.
- the inside diameter of the small diameter end area of the ring support should be smaller than the outside diameter of the storage drum.
- a pot-shaped insert in which the permanent magnets are accommodated is expediently fixed at the front end of the storage drum-shaped storage body.
- the insert uses the already available free space at the front end of the storage body.
- the use is also favorable in terms of production and assembly, covers the rotary bearing of the storage body from the outside and forms a frustoconical nose area of the storage body which is favorable for thread control.
- the use also protects against excessive lint deposits in this area, which disturbs the running of the thread.
- the winding shaft with the winding element arranged thereon should form a common guide channel either for a threading needle for manual threading or for a threading air flow for pneumatic threading.
- a new thread can be quickly brought through the winding shaft and the winding element into the area of the surface of the storage body, from where it can be conveniently brought by hand and with the ring support moved into the threading position through the thread brake and into the withdrawal eye.
- This pre-threading phase up to the surface of the storage body can be accomplished particularly conveniently by means of a thread guide tube or a threading air nozzle at the inlet end of the winding shaft, which is directed into the guide channel and generates the air jet required for partial threading.
- a new thread e.g. only to be brought into the area of the threading air nozzle after it has been actuated, and is then automatically blown through the guide channel to the storage body, where it is gripped by hand and threaded into the trigger eyelet by the exposed thread brake.
- a thread delivery device F in particular for knitting machines, in FIG. 1 has a housing H, which is fixed stationary on the knitting machine by means of a clamping bracket 1 on a carrier (not shown).
- the housing H has an axis X, to which a housing-fixed, laterally arranged arm 2 runs essentially parallel.
- An electrical drive motor M for a winding shaft S is arranged in the housing H, the axis of which coincides with the axis X and is rotatably mounted in a bearing 22 in the housing H.
- the bearing 22 can at least partially overlap with the motor M in the direction of the X axis.
- a laterally obliquely striving winding element W for example in the form of a winding disk, is firmly attached.
- a storage drum D for example in the form of a rod drum, with a hub and a rotary bearing 15 is freely rotatably mounted.
- a feed element 13 can be supported by means of a rotary bearing 12 tilted to the axis X in such a way that it performs a wobbling movement when the winding shaft S rotates, thereby reaching outwards between rods 14 of the storage body D and the wound thread turns to the free front end of the storage body D. pushes forward.
- the thread delivery device F is predominantly in the position shown in Fig. 1, i.e. vertical, used.
- a ring support R coaxial to the axis X in the operative position shown in FIG. 1 is connected in a pivot bearing 3.
- the pivot bearing 3 has at the free end of the arm 2 an axis perpendicular to the axis X and approximately tangential to the storage body D, on which the ring support R is articulated with a bracket 5.
- Positioning stops 7, 6 are provided between the bracket 5 and the arm 2, which define the operative position of the ring support R shown.
- an obliquely protruding arm 8 is also fixed, which contains an extraction eyelet 9 coaxial with the axis X.
- the ring support R has a step-shaped and circumferential version 4 which is open to the storage body D for an optionally usable, for example ring-shaped thread brake B (for example a straw ring used with radial play) which, in the operative position of the ring support R, either with the trigger edge at the free front end of the Memory body D or with its outer circumference in contact.
- the thread brake B is a so-called straw ring with resilient, inclined teeth or bristles.
- a brush ring or multi-plate ring can be used as a thread brake B in the holder 4, or a so-called ring brake which has a support ring mounted in the holder 4 and a band brake ring which is continuous in the circumferential direction and is axially pressed against the pull-off edge of the storage body D in the shape of a truncated cone, eg a so-called flexbrake.
- the ring support is additionally designed as a carrier of a plurality of permanent magnets P2, which are embedded, for example, in the ring support R, and further permanent magnets P1, which belong to the storage body D, are positioned in the free front end of the storage body D, aligned with the permanent magnets P2.
- the permanent magnets P1, P2 can be distributed in a ring over the respective peripheral region and are inclined with respect to the axis X. They interact magnetically through a circumferential gap between the ring support R and the front end of the storage body. The resulting magnetic forces of the permanent magnets P2 assigned to the housing H to the permanent magnets P1 assigned to the storage body D prevent the storage body D from rotating with the winding shaft S.
- the ring support is essentially frustoconical, expediently having a short cylindrical section 20 in which the holder 4 is provided and a conical section 19 in which the permanent magnets P2 are arranged.
- the inner surface could be smooth (balloon break function).
- the boom 2 also carries a sensor device 21 for scanning the thread and the memory body D. Signals emitted by the sensor device 21 can be used to control the drive motor M in such a way that, depending on requirements, a certain thread supply on the memory body D is always maintained, which is between the predetermined maximum - and minimum limits fluctuate.
- the thread is from the consuming textile machine, e.g. B.
- the pivot bearing 3 could also be arranged between the boom 2 and the housing further up than drawn, so that the entire boom 2 can be pivoted away with the ring support R. Furthermore, it is conceivable to additionally design the pivot bearing 3 as a pivot bearing in order to also move the ring support R laterally away from the axis X after pivoting away. It is also possible to design the pivot bearing 3 as a tension bearing in which the ring support R can only be brought into the threading position in the direction of the axis X. Another possibility is to hook the ring support R, which is held in the operative position anyway by the magnetic forces, only into the bracket 2 and to completely loosen this hook connection and remove the ring support.
- a conventional threading needle T can be used, which is pushed through a guide channel 10 formed by the hollow starting area of the winding shaft S and an inner channel 11 of the winding element and pulls the new thread through.
- the thread end is then gripped by hand and, with the ring support adjusted in the threading position, threaded through the thread brake B into the draw-off eye 9. Since in the threading position of the ring support R the rotation lock of the storage body D is removed, its rotational position can be set, for example for cleaning the storage body or the scanning area, or a new rotational position for the storage body D can then be set.
- the ring support R is again in the reset operative position in which it is held by the magnetic force and prevents the storage body D from rotating in one of, if necessary, several rotational positions predetermined by the positioning of the permanent magnets P1, P2.
- the thread brake B then acts on the initially still loose thread on the storage body D.
- new turns are immediately wound onto the storage body D against the resistance of the thread held by the thread brake B, so that the thread delivery device F immediately returns to normal Surgery is ready.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Knitting Machines (AREA)
- Spinning Or Twisting Of Yarns (AREA)
- Sewing Machines And Sewing (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE50109713T DE50109713D1 (de) | 2000-10-31 | 2001-10-30 | Fadenliefergerät |
KR10-2003-7006020A KR100526396B1 (ko) | 2000-10-31 | 2001-10-30 | 방적사 공급 장치 |
AU2002215984A AU2002215984A1 (en) | 2000-10-31 | 2001-10-30 | Thread supplying device |
EP01992683A EP1330408B1 (de) | 2000-10-31 | 2001-10-30 | Fadenliefergerät |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10054103.8 | 2000-10-31 | ||
DE10054103A DE10054103A1 (de) | 2000-10-31 | 2000-10-31 | Fadenliefergerät |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2002036475A1 true WO2002036475A1 (de) | 2002-05-10 |
Family
ID=7661766
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2001/012546 WO2002036475A1 (de) | 2000-10-31 | 2001-10-30 | Fadenliefergerät |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP1330408B1 (de) |
KR (1) | KR100526396B1 (de) |
CN (1) | CN1295124C (de) |
AU (1) | AU2002215984A1 (de) |
DE (2) | DE10054103A1 (de) |
WO (1) | WO2002036475A1 (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7896279B2 (en) * | 2004-11-05 | 2011-03-01 | Iro Ab | Yarn braking device |
EP3591106A1 (de) * | 2018-06-28 | 2020-01-08 | Memminger-IRO GmbH | Fadenliefergerät und verfahren zum betreiben eines fadenliefergerätes |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005026234A1 (de) * | 2005-06-07 | 2006-12-14 | Iro Ab | Fadenliefergerät für Greifer- und Projektilwebmaschinen |
CN103306037B (zh) * | 2013-06-09 | 2015-01-07 | 诸暨市振兴机器制造有限公司 | 一种恒涨力输纱装置 |
CN108660008A (zh) * | 2017-03-27 | 2018-10-16 | 朱秀青 | 一种保健果酒 |
CN111218767B (zh) * | 2020-01-14 | 2021-11-16 | 浙江升丽纺织有限公司 | 一种无缝彩棉背心针织机的送纱装置 |
DE102021115596B3 (de) | 2021-06-16 | 2022-05-12 | Memminger-IRO Gesellschaft mit beschränkter Haftung | Fadenliefergerät |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2701718B1 (de) * | 1977-01-17 | 1978-06-15 | Iro Ab | Fadenspeicher- und -liefervorrichtung |
US4676442A (en) * | 1984-08-16 | 1987-06-30 | Aktiebolaget Iro | Yarn accumulation and feeding apparatus |
US5094275A (en) * | 1987-09-25 | 1992-03-10 | Iro Ab | Weft storing and delivering device with pneumatic threader |
US5211207A (en) * | 1990-12-21 | 1993-05-18 | Ichikawa Iron Works Co., Ltd. | Weft feeder for weaving machine with angularly adjustable carrier |
US5489068A (en) * | 1991-05-03 | 1996-02-06 | Vischiani; Giuseppe | Weft supplier for shuttleless looms |
DE29518090U1 (de) * | 1995-11-15 | 1997-04-24 | Sobrevin Société de brevets industriels-Etablissement, Vaduz | Fadenspeicher- und -liefervorrichtung |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH623545A5 (de) * | 1977-01-17 | 1981-06-15 | Iro Ab |
-
2000
- 2000-10-31 DE DE10054103A patent/DE10054103A1/de not_active Withdrawn
-
2001
- 2001-10-30 EP EP01992683A patent/EP1330408B1/de not_active Expired - Lifetime
- 2001-10-30 WO PCT/EP2001/012546 patent/WO2002036475A1/de active IP Right Grant
- 2001-10-30 KR KR10-2003-7006020A patent/KR100526396B1/ko not_active IP Right Cessation
- 2001-10-30 DE DE50109713T patent/DE50109713D1/de not_active Expired - Fee Related
- 2001-10-30 AU AU2002215984A patent/AU2002215984A1/en not_active Abandoned
- 2001-10-30 CN CNB018182178A patent/CN1295124C/zh not_active Expired - Fee Related
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2701718B1 (de) * | 1977-01-17 | 1978-06-15 | Iro Ab | Fadenspeicher- und -liefervorrichtung |
US4676442A (en) * | 1984-08-16 | 1987-06-30 | Aktiebolaget Iro | Yarn accumulation and feeding apparatus |
US5094275A (en) * | 1987-09-25 | 1992-03-10 | Iro Ab | Weft storing and delivering device with pneumatic threader |
US5211207A (en) * | 1990-12-21 | 1993-05-18 | Ichikawa Iron Works Co., Ltd. | Weft feeder for weaving machine with angularly adjustable carrier |
US5489068A (en) * | 1991-05-03 | 1996-02-06 | Vischiani; Giuseppe | Weft supplier for shuttleless looms |
DE29518090U1 (de) * | 1995-11-15 | 1997-04-24 | Sobrevin Société de brevets industriels-Etablissement, Vaduz | Fadenspeicher- und -liefervorrichtung |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7896279B2 (en) * | 2004-11-05 | 2011-03-01 | Iro Ab | Yarn braking device |
EP3591106A1 (de) * | 2018-06-28 | 2020-01-08 | Memminger-IRO GmbH | Fadenliefergerät und verfahren zum betreiben eines fadenliefergerätes |
Also Published As
Publication number | Publication date |
---|---|
EP1330408A1 (de) | 2003-07-30 |
KR20030059219A (ko) | 2003-07-07 |
EP1330408B1 (de) | 2006-05-03 |
DE10054103A1 (de) | 2002-05-08 |
DE50109713D1 (de) | 2006-06-08 |
CN1295124C (zh) | 2007-01-17 |
CN1471490A (zh) | 2004-01-28 |
AU2002215984A1 (en) | 2002-05-15 |
KR100526396B1 (ko) | 2005-11-08 |
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