EP0894760A2 - Dispositif d'alimentation en fil et roue d'entraínement appropriée - Google Patents

Dispositif d'alimentation en fil et roue d'entraínement appropriée Download PDF

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Publication number
EP0894760A2
EP0894760A2 EP98113236A EP98113236A EP0894760A2 EP 0894760 A2 EP0894760 A2 EP 0894760A2 EP 98113236 A EP98113236 A EP 98113236A EP 98113236 A EP98113236 A EP 98113236A EP 0894760 A2 EP0894760 A2 EP 0894760A2
Authority
EP
European Patent Office
Prior art keywords
drive
cleaning groove
scratch
peripheral portion
delivery device
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
Application number
EP98113236A
Other languages
German (de)
English (en)
Other versions
EP0894760A3 (fr
EP0894760B1 (fr
Inventor
Ernst-Dieter Dipl.-Ing. Plath
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sipra Patententwicklungs und Beteiligungs GmbH
Original Assignee
Sipra Patententwicklungs und Beteiligungs GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sipra Patententwicklungs und Beteiligungs GmbH filed Critical Sipra Patententwicklungs und Beteiligungs GmbH
Publication of EP0894760A2 publication Critical patent/EP0894760A2/fr
Publication of EP0894760A3 publication Critical patent/EP0894760A3/fr
Application granted granted Critical
Publication of EP0894760B1 publication Critical patent/EP0894760B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • D04B15/48—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
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/50—Auxiliary process performed during handling process
    • B65H2301/53—Auxiliary process performed during handling process for acting on performance of handling machine
    • B65H2301/531—Cleaning parts of handling machine

Definitions

  • the invention relates to a thread delivery device which in the preamble of claim 1 Specified genus and a drive wheel suitable for driving it.
  • the thread delivery drum is usually driven by means of a drive wheel that follows kind of a toothed belt pulley or a spur gear and formed on one part its circumference is wrapped in a drive belt in the form of a toothed belt, which is driven by a central drive.
  • the teeth serve the purpose Avoid slippage between the drive belt and the drive wheel and in particular with positive thread feed to the textile machine ensure that to everyone Thread quantities are delivered at a point in time that are in a precisely defined ratio to the Working speed of the textile machine, e.g. to the speed of the needle cylinder one Circular knitting machine stand.
  • the textile machine When processing threads in the form of fiber yarns, the textile machine is formed surrounding atmosphere large amounts of fluff particles floating around. These are among others gripped by the drive belt and taken away. Therefore, it is common to anywhere to provide a cleaning device to the drive belt to clean and to get rid of the fluff particles.
  • Such Cleaning devices contain e.g. two brush wheels rolling on the drive belt.
  • the invention is therefore based on the object, the thread delivery device of the beginning designated genus and a drive wheel suitable for driving them so that a build-up of fluff particles on and / or on the drive belt cooperating peripheral portion of the drive roller is largely avoided.
  • the thread delivery device shown in Fig. 1 has a housing 1 which on a Mounting rail 2 of a thread processing or thread consuming machine, e.g. a circular knitting machine, is releasably attached.
  • a thread processing or thread consuming machine e.g. a circular knitting machine
  • On the underside of the housing 1 is one Conventional storage or delivery drum 3 arranged, which is rotatable about an axis of rotation 4 mounted and for this purpose fixed with a shaft 5 rotatably mounted in the housing 1 connected is.
  • At least one further drive wheel 8 is often coaxial on the shaft 5 attached, which is operatively connected to a second drive belt 9.
  • a e.g. manually switchable clutch disc 10 rotatably connected to the shaft 5, which is axially displaced on the shaft 5 and thereby optionally e.g. by frictional engagement with one or the other drive wheel 6 or 8 can be rotatably coupled.
  • Either the drive wheels 6, 8 have different ones Diameter on or the drive belt 7.9 with different Speeds driven.
  • Thread eyelet 12 attached to the free end of the housing 1 at the free end of the housing 1 .
  • Thread brake 11 and thread inlet guide element 14 On the underside of the housing 1 is a between the Thread brake 11 and thread inlet guide element 14 arranged on the delivery drum 3, e.g. an eyelet is provided, while on the diametrically opposite the guide element 14
  • Thread outlet guide elements attached to the underside of the housing 1 15 and 16 are provided which, like the guide element 14, are made of open or closed eyelets can exist.
  • a thread 17 is one not shown Supply spool at an angle through the thread eyelet 12, the thread brake 11 and the guide element 14 from above and essentially tangential to the thread support surface of the delivery drum 3 performed, wound on it in at least one, preferably several turns and finally essentially tangential through the two guide elements 15 and 16 one Processing point, not shown, of a knitting machine or the like.
  • Sensor 18 and 19, which are also attached to the housing 1, can in the usual manner Monitoring the thread 17 serve.
  • FIG. 2 and 3 show the drive wheel 6 and the drive belt in an enlarged view 7 of the thread delivery device according to FIG. 1.
  • the drive wheel 8 and the drive belt 9 can be essentially identical.
  • the drive wheel 6 has, for example in the manner of a conventional pulley, two spaced apart and coaxially arranged, essentially plane-parallel, circular flanges 21 and 22, between which a hollow cylinder body 23, which is somewhat smaller in diameter and is fastened on the shaft 5, is seated, one for applying the Drive belt 7 forms certain peripheral portion 24.
  • This is provided with a toothing which consists of teeth 25 running parallel to the axis 4 and tooth gaps 26 arranged between them and which serves to interact with a corresponding toothing 27 of the drive belt 7 designed as a toothed belt or to be brought into engagement in order to prevent slippage Ensure drive of the drive roller 6 by the drive belt 7.
  • the peripheral section 24 and the drive belt 7 can have a width which essentially corresponds to the distance between the flanged wheels 21, 22, as indicated by the dimension a in FIG. 2.
  • Thread delivery devices, drive wheels and drive belts of the type described generally known to the person skilled in the art e.g. DE 37 11 558 C1, EP 0 217 373 A2, EP 0 499 218 A1 and therefore do not need to be explained in more detail.
  • the drive roller 6 has a cleaning groove 29 which in the Circumferential section 24 is incorporated, extends over its entire circumference and is preferably arranged in the middle between the two flanges 21, 22.
  • the cleaning groove 29 is assigned a scratch 30, which is by means of a Screw 31 or the like (Fig. 1) is attached to the housing 1 and e.g. from a rod-shaped, has a circular cross-section component, which with a free End section 32 projects into the cleaning groove 29, expediently without touching it, and preferably ends close to the bottom.
  • the drive belt 7, 3 always only a part of the peripheral portion 24 of the drive wheel 6 abuts and the scratch 30 at a location not occupied by the drive belt 7, e.g. on a position of the circumferential section diametrically opposite the drive belt 7 24 protrudes into the cleaning groove 29.
  • the cleaning groove 29 is e.g. by a simple milling process in the peripheral section 24 incorporated, unless the complete drive wheel 6 as a plastic injection molded part will be produced.
  • the measured in the radial direction of the peripheral portion 24 The depth of the cleaning groove 29 is from the outer surface of the peripheral portion 24, preferably somewhat deeper than the bottoms of the tooth gaps 26 thereof Gearing corresponds, and the scratch 30 preferably protrudes so deep into the cleaning groove 29 in that the free end portion 32 as shown in FIG. 3 also below the Bottom of the tooth gaps 26 ends.
  • the scratch 30 serves the purpose of removing all the fluff particles, thread remnants and other impurities pressed into the tooth gaps 26 of the peripheral section 24 by the drive belt 7 from the tooth gaps 26 before they can become thick, possibly discolored fluff pads. Since the fluff and thread parts are arranged to a large extent on the peripheral section 24 so that they are at least partially arranged parallel to the axis 4, they are reliably gripped by the scratch 30 and due to the movement of the drive wheel 6 and the resulting air movement is removed from the area of the circumferential section 24 before any part of the circumferential section 24 currently located in the area of the scratch 30 again reaches the effective area of the drive belt 7.
  • the shape of the end section 32 of the scratch 30 is largely arbitrary.
  • the end section 32 of the scratch 30, in contrast to FIG. 3, could also be inclined instead are radial and perpendicular to the axis 4 of the drive wheel 6 and with a wedge-shaped beveled, arranged in the cleaning groove 29 tip.
  • the exact location, arrangement and shape of the scratch 30 can easily be determined in individual cases by tests.
  • a width of, for example, approx. 3 mm with a dimension a of, for example, approx. 13 mm and such a depth have been found to be useful so that they radially extend the bottoms of the tooth gaps 26 protrudes inwards by approx. 1 mm, for example.
  • drive wheels 6, 8 there are several drive wheels 6, 8 per delivery drum 3, expediently each have at least one cleaning groove 29, 33. This can individual, attached to the housing 1 further scratches.
  • a component 34 common to all drive wheels 6, 8 provide, on which a plurality of scratches 30, 35 with end portions 32, 36 are integrally attached are, which each project into an assigned cleaning groove 29 or 33.
  • the scratches 30, 35 can be made from numerous materials, particularly metals (e.g. Spring wire) or plastic and depending on the needs be largely rigid in individual cases, but also flexible. In both cases the scratch 30, 35 also consist of a tube and at the free end as a blowing nozzle be designed to connect it to a compressed air source or the like To increase cleaning effect.
  • the invention is not restricted to the exemplary embodiment described, which can be modified in many ways.
  • the term "housing" is therefore intended to encompass all of these types of fastening.
  • the drive belt 7, 9 can be designed differently than shown and described, in particular have no peripheral toothing.
  • the peripheral section 24 of the drive wheel 6, 8 can also be smooth and without toothing, while the cleaning grooves 29, 33 protrude into the peripheral section 24 with a preselected depth.
  • drive belts can be provided which are additionally or exclusively provided with toothings in at least one of their side edges, these toothings engaging with corresponding edge toothings in the drive wheel (for example EP 0 185 131 B1).
  • toothings in at least one of their side edges, these toothings engaging with corresponding edge toothings in the drive wheel (for example EP 0 185 131 B1).
  • the free end sections 32, 36 of the scratches 30, 35 grind on the bottom of the cleaning grooves 29, 33 in order to thereby reliably also prevent the formation of contaminants in the cleaning groove 29, 33, in particular if the scratches 30, 35 are made of a sufficiently flexible material.
  • other values which are considered expedient can also be used.
  • the width of the cleaning groove 29 lies, for example, between 1/4 and 2/3 times the value a and its depth should be at least about 0.5 to 1 mm deeper than the tooth base.
  • the scratch 30, 35 can extend into the cleaning groove 29 by at least approx. 0.5 mm, for example, and have a cross-sectional dimension that is approx. 1 mm smaller than the width of the cleaning groove if it should not touch the groove walls.
  • the invention is not limited to drive wheels 6, 8 which sit directly on the shaft 5 of the delivery drum 3. Alternatively, it could also be drive wheels 6 or 8 physically separate from the delivery drum 3, which are drivingly coupled to the delivery drum 3 via further drive means.
  • the features according to the invention can also be used in combinations other than those shown and described.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Knitting Machines (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Forwarding And Storing Of Filamentary Material (AREA)
EP98113236A 1997-08-01 1998-07-16 Dispositif d'alimentation en fil et roue d'entraínement appropriée Expired - Lifetime EP0894760B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19733264 1997-08-01
DE19733264A DE19733264A1 (de) 1997-08-01 1997-08-01 Fadenliefervorrichtung und dafür geeignetes Antriebsrad

Publications (3)

Publication Number Publication Date
EP0894760A2 true EP0894760A2 (fr) 1999-02-03
EP0894760A3 EP0894760A3 (fr) 1999-09-29
EP0894760B1 EP0894760B1 (fr) 2002-10-09

Family

ID=7837666

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98113236A Expired - Lifetime EP0894760B1 (fr) 1997-08-01 1998-07-16 Dispositif d'alimentation en fil et roue d'entraínement appropriée

Country Status (5)

Country Link
US (1) US6089491A (fr)
EP (1) EP0894760B1 (fr)
JP (1) JPH1192026A (fr)
DE (2) DE19733264A1 (fr)
ES (1) ES2185091T3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110055672A (zh) * 2019-05-16 2019-07-26 绍兴皂树纺织品有限公司 一种针织圆形纬编机

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101283134B (zh) * 2005-10-07 2011-06-08 梅明格-Iro股份有限公司 具有可更换的纱线喂给轮的纱线喂给装置
CN112545403B (zh) * 2020-12-30 2021-10-26 德清县德创智能技术有限公司 一种墙面及天花板自动清扫机

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2283971A1 (fr) * 1974-09-03 1976-04-02 Vnii Trikotazhnoj Promy Dispositif pour l'alimentation continue en fil d'une chute de tricoteuse circulaire
US4691873A (en) * 1986-06-06 1987-09-08 Alan Gutschmit Strand storing and delivering device
EP0271373A2 (fr) * 1986-11-12 1988-06-15 Kabushiki Kaisha Kosmek Dispositif de serrage hydraulique
GB2254662A (en) * 1991-02-12 1992-10-14 Josef Petr Prokopius Assembling a dip tube on an aerosol valve.

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4175796A (en) * 1978-05-26 1979-11-27 Caterpillar Tractor Co. Track-type vehicle wheel cleaning apparatus
US4308019A (en) * 1980-02-07 1981-12-29 Industrial Chain Products, Inc. Drag chain sprocket
US4632324A (en) * 1982-11-12 1986-12-30 Mayer & Cie. Gmbh & Co. Strand storing and delivering device
DE3481720D1 (de) * 1983-12-28 1990-04-26 Nissan Motor Webmaschine.
JPS6253457A (ja) * 1985-08-30 1987-03-09 株式会社　福原精機製作所 丸編機用除塵装置
US4687150A (en) * 1985-10-04 1987-08-18 Alan Gutschmit Strand storing and delivering device
DE3711558C1 (de) * 1987-04-06 1988-06-23 Sipra Patent Beteiligung Fadenliefervorrichtung fuer Strickmaschinen
JPH0733621B2 (ja) * 1988-03-18 1995-04-12 株式会社福原精機製作所 丸編機における積極型の糸送り装置
DE3934576A1 (de) * 1989-10-17 1991-04-25 Schubert & Salzer Maschinen Streckwerk zum verziehen von faserbaendern
DE4104663C1 (fr) * 1991-02-15 1992-08-13 Memminger-Iro Gmbh, 7290 Freudenstadt, De
JP3283334B2 (ja) * 1993-04-09 2002-05-20 株式会社福原精機製作所 丸編機における除塵装置
US5490814A (en) * 1995-04-26 1996-02-13 Deere & Company Power transmission sheave
US5564291A (en) * 1995-05-11 1996-10-15 Tsai; Ji-Tsair Round knitting machine sinker with scraper

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2283971A1 (fr) * 1974-09-03 1976-04-02 Vnii Trikotazhnoj Promy Dispositif pour l'alimentation continue en fil d'une chute de tricoteuse circulaire
US4691873A (en) * 1986-06-06 1987-09-08 Alan Gutschmit Strand storing and delivering device
EP0271373A2 (fr) * 1986-11-12 1988-06-15 Kabushiki Kaisha Kosmek Dispositif de serrage hydraulique
GB2254662A (en) * 1991-02-12 1992-10-14 Josef Petr Prokopius Assembling a dip tube on an aerosol valve.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110055672A (zh) * 2019-05-16 2019-07-26 绍兴皂树纺织品有限公司 一种针织圆形纬编机

Also Published As

Publication number Publication date
DE19733264A1 (de) 1999-02-04
EP0894760A3 (fr) 1999-09-29
EP0894760B1 (fr) 2002-10-09
JPH1192026A (ja) 1999-04-06
DE59805883D1 (de) 2002-11-14
ES2185091T3 (es) 2003-04-16
US6089491A (en) 2000-07-18

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