EP0199174B1 - Dispositif pour l'alimentation positive de fils élastomères aux machines textiles - Google Patents

Dispositif pour l'alimentation positive de fils élastomères aux machines textiles Download PDF

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Publication number
EP0199174B1
EP0199174B1 EP86104750A EP86104750A EP0199174B1 EP 0199174 B1 EP0199174 B1 EP 0199174B1 EP 86104750 A EP86104750 A EP 86104750A EP 86104750 A EP86104750 A EP 86104750A EP 0199174 B1 EP0199174 B1 EP 0199174B1
Authority
EP
European Patent Office
Prior art keywords
thread
driving roller
carrier
holder
spool
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.)
Expired
Application number
EP86104750A
Other languages
German (de)
English (en)
Other versions
EP0199174A1 (fr
Inventor
Heinz Brunner
Stefan Seeger
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 EP0199174A1 publication Critical patent/EP0199174A1/fr
Application granted granted Critical
Publication of EP0199174B1 publication Critical patent/EP0199174B1/fr
Expired 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
    • D04B15/50—Thread-feeding devices for elastic threads

Definitions

  • the invention relates to a device for the compulsory delivery of elastomer threads to textile machines, with a freely rotatable holder for a bobbin, which bears against a drive roller, and with rollers for guiding the elastomer thread drawn off the bobbin.
  • a device of the type mentioned is known from US-PS 39 01 052.
  • the thread spool is placed on a holder, the support of which can be adjusted by a tension spring perpendicular to the axis of a drive roller against which the thread spool placed rests over its entire winding length.
  • This device is specially designed for elastomer threads and must be replaced when using normal threads with other thread delivery devices that have a thread storage drum.
  • the bobbin assumes a constant contact position with the drive roller, with the risk that loose yarn fibers will wrap around the drive roller and form an undesirable coating on the drive roller.
  • the drive rollers must be cleaned from time to time, since a drive roller coating can damage the outer yarn layer of the adjacent bobbin and can undesirably influence the peripheral speed of the yarn bobbin and thus the thread take-off speed.
  • the invention has for its object to provide a device of the type mentioned so that it is more reliable and easier to replace.
  • the drive roller is connected to the drive device of a thread delivery device, for example coaxially and in a rotationally fixed manner, to a storage drum of the thread delivery device coupled to the drive device and has a greater length than the contact length of the yarn package , and that the bobbin holder is mounted on a carrier which is arranged displaceably along a line which runs at an acute angle to the drive roller axis.
  • the carrier for the bobbin holder and the drive roller can be detachably connected as additional parts to the parts of the thread delivery device which is also known per se and is intended for normal threads.
  • the device designed according to the invention can be coupled in a space-saving manner with a thread delivery device provided for normal threads.
  • a thread delivery device provided for normal threads.
  • the oblique arrangement of the longitudinally displaceable carrier for the elastomer thread spool brings various advantages. With a decreasing spool diameter, not only does the spool axis approach the drive roller axis, but at the same time there is a longitudinal displacement of the spool in the axial direction of the drive roller. Deposits, if such should have formed on the surface of the drive roller, are loosened and pushed off in the axial direction, resulting in a self-cleaning effect of the drive roller. The oblique arrangement also favors the mounting conditions of this device in terms of a small space requirement both in the radial and in the axial direction.
  • the carrier In the case of a carrier which can be displaced obliquely downwards, an automatic readjustment of the yarn package under its own weight can also be achieved without spring support.
  • the carrier In the case of textile machines with unfavorable space conditions at the installation site, the carrier can also be arranged so that it can be displaced obliquely upwards by means of spring force.
  • two or more elastomer yarn bobbins could be arranged coaxially on the bobbin holder and adjoin the common drive roller.
  • the device is used with only a single elastomer spool because then the same yarn paths between the yarn spool and the yarn processing point are specified at each processing point and the individual thread spools can have a different fill level or a different winding volume.
  • the entire device can be structurally simple and designed so that the thread delivery device can also be operated with normal thread using its thread storage drum, even if the holding, drive and guide parts for the elastomer thread remain mounted on the device. If desired, a normal thread and an elastomer thread can also be forcibly fed to one or two processing points simultaneously with the device.
  • FIG. 1 An exemplary embodiment of a thread delivery device designed according to the invention is explained in more detail below with reference to the accompanying drawing.
  • the figure shows the thread delivery device in the assembled state in a side view, partly in section.
  • the thread delivery device shown has a device housing 10 which is designed as a hollow body and which is screwed in its end region to a mounting rail 11 of a textile machine in a horizontal position.
  • a continuous, vertically aligned shaft 16, not shown, is mounted in the housing 10, on which a thread storage drum 12 is fastened on the underside of the device housing 10, while on the top of the device housing 10, two pulleys 13 and 14 are mounted on it, which can be coupled to the shaft 16 by means of an axially adjustable coupling disc 15 arranged between the two pulleys.
  • a toothed belt 17 or 18 is guided over each of the pulleys 13, 14, which is common to a plurality of identical thread delivery devices and is moved by a common drive device, not shown.
  • a thread brake 19 At the free end of the device housing 10, a thread brake 19, a knot monitor 27, an upper thread guide eyelet 20 and a lower thread guide eyelet 23 are arranged, which are intended for a normal thread 24 indicated by a dash-dotted line, which is to be guided in several turns over the storage drum 12 and can be withdrawn from the storage drum via bow-like thread guide elements 25 and 26 and via a thread break sensor, not shown. So far, the thread delivery device is known.
  • the thread delivery device is provided with additional parts for the delivery of an elastomer thread.
  • an angled support arm 29 is releasably attached by means of a screw 28 which is also used to fasten a holder for the upper thread guide eyelet 20 and which has a through opening, via which a guide sleeve 30 for a longitudinally displaceable rod 31 is fastened on the end face.
  • the longitudinally displaceable rod 31 serves as a carrier for a spool plug holder 34, which on the free lower end of the rod 31 protruding from the guide sleeve 30 is held freely rotatable with the axis 35 aligned vertically.
  • a thread spool 36 wound with an elastomer thread 37 is frictionally attached to this plug holder 34 from below.
  • the rod 31 is brought under the weight of the spool plug-in holder 34 and the attached spool 36 into contact with a drive roller 38 which is coaxial with the storage drum 12 and thus on the axis 39 of the shaft 16 drawn with a dash-dotted line in extension of the storage drum 12 and with her is firmly connected.
  • the drive roller 38 has a noticeably greater length than the contact length of the thread spool 36.
  • the thread of the thread spool 36 is also supported by a tension spring 40, which has one end connected to the guide sleeve 30 and the other end connected to the rod 31 anchored by a longitudinal slot 41 of the guide sleeve 30 protruding bolts 42.
  • the entire carrier device is covered in a dustproof manner by means of a protective housing 43, which can be designed as a simple plug-in capsule.
  • the drive roller 38 can be formed in one piece with the storage drum 12, but can advantageously also be detachably connected to the storage drum 12 in a manner not shown here, for example by means of a screw connection or a bayonet-type rotary plug connection.
  • the elastomer thread 37 is not guided over the storage drum 12, like a normal thread 24, but drawn off over two guide rollers 44 and 45, which are arranged on support rods 46 anchored on the device housing 10 to a plane running through the two axes 35 and 39, so that the stripped elastomer thread 37 does not touch the drive roller 38.
  • the elastomer thread 37 is also guided over a roller 48 mounted on a pivot lever 47.
  • the swivel lever 47 is the sensor of a known type of thread breakage monitoring device arranged inside the device housing 10, to which the swivel lever 49 cooperating with a normal thread 24 also belongs as a sensor. Both sensors 47 and 49 are pivotally mounted in the device housing 10.
  • the carrier part for the plug-on coil 34 can also be arranged differently.
  • the rod 31 could also be arranged so as to be adjustable obliquely upwards below the spool carrier 34.
  • the angle a does not have to be 45 °, but can also have a different acute angle value.
  • the axes 35 and 39 also do not have to run parallel and they do not have to lie in a common plane.
  • conical spools of thread can also be used.
  • the device can also be designed without the thread storage drum 12.
  • the shaft 16 merges directly into the drive shaft 38.
  • the thread guide members 19, 20, 21, the knot monitor 27 and the sensor 49 can also be omitted.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Knitting Machines (AREA)
  • Forwarding And Storing Of Filamentary Material (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)

Claims (9)

1. Dispositif pour l'alimentation forcée en fils d'élastomère de machines textiles, avec un support (34) en libre rotation pour une bobine de fil (36) qui est appliquée contre un rouleau d'entraînement (38), et avec des galets (44, 45) pour guider le fil en élastomère (37) tiré de la bobine de fil (36), caractérisé en ce que le rouleau d'entraînement (38) est relié au dispositif d'entraînement (13 à 15) d'un dispositif d'alimentation en fil et présente une longueur supérieure à la longueur d'appui de la bobine de fil (36), et en ce que le support de bobine (34) est monté sur une monture (31) qui est disposée de manière coulissante le long d'une ligne (32) qui s'étend selon un angle aigu (a) par rapport à l'axe de rouleau d'entraînement (39).
2. Dispositif conforme à la revendication 1, caractérisé en ce que le rouleau d'entraînement (38) est relié coaxialement et en rotation à un tambour de réserve (12), couplé au dispositif d'entraînement, du dispositif d'alimentation en fil.
3. Dispositif conforme à la revendication 1 ou 2, caractérisé en ce que la monture (31) du support de bobine (34) conçu sous la forme d'un support d'emboîtement est montée de façon coulissante selon un angle de 45° par rapport à l'axe rouleau d'entraînement (39).
4. Dispositif conforme à l'une des revendications 1 à 3, caractérisé en ce que la monture (31) est constituée d'une tige (31) qui peut coulisser longitudinalement dans une douille de guidage (30) et qui supporte, à son extrémité avant, le support de bobine en libre rotation (34).
5. Dispositif conforme à la revendication 4, caractérisé en ce que la tige (31) peut être précontrainte en direction du rouleau d'entraînement (38) au moyen d'au moins un ressort (40).
6. Dispositif conforme à l'une des revendications 1 à 5, caractérisé en ce que la monture (31) est montée inclinée vers le bas et coulissante, de façon que la bobine de fil (36) avec le support de bobine de fil (34) soit suspendue à elle.
7. Dispositif conforme à l'une des revendications 1 à 6, caractérisé en ce que la monture (31) pour le support de bobine de fil (34) et/ou le rouleau d'entraînement (38) est reliée de façon amovible au boîtier (10) ou, respectivement, au tambour de réserve (12) d'un dispositif d'alimentation en fil connu en soi.
8. Dispositif conforme à l'une des revendications 1 à 7, caractérisé en ce qu'au moins la monture (31) du support de bobine de fil (34) est entourée d'un boîtier de protection étanche à la poussière (43).
9. Dispositif conforme à la revendication 1, caractérisé en ce que les galets de guidage de fil (44, 45, 48) sont disposés de manière décalée par rapport à un plan défini par l'axe (39) du rouleau d'entraînement (38) et par l'axe de rotation (35) de la bobine de fil (36), de façon que le fil en élastomère tiré (37) ne touche pas le rouleau d'entraînement (38).
EP86104750A 1985-04-26 1986-04-08 Dispositif pour l'alimentation positive de fils élastomères aux machines textiles Expired EP0199174B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3515104A DE3515104C1 (de) 1985-04-26 1985-04-26 Vorrichtung zur zwangsweisen Zulieferung von Elastomerfaeden an Textilmaschinen
DE3515104 1985-04-26

Publications (2)

Publication Number Publication Date
EP0199174A1 EP0199174A1 (fr) 1986-10-29
EP0199174B1 true EP0199174B1 (fr) 1989-01-11

Family

ID=6269192

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86104750A Expired EP0199174B1 (fr) 1985-04-26 1986-04-08 Dispositif pour l'alimentation positive de fils élastomères aux machines textiles

Country Status (5)

Country Link
US (1) US4681272A (fr)
EP (1) EP0199174B1 (fr)
JP (1) JPS61252330A (fr)
DE (1) DE3515104C1 (fr)
ES (1) ES8705538A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8621751D0 (en) * 1986-09-10 1986-10-15 Profile For Sport Ltd Knitting machines
DE3733797C1 (de) * 1987-10-07 1989-04-06 Sipra Patent Beteiligung Fadenspeicher- und -liefervorrichtung fuer Textilmaschinen,insbesondere Strickmaschinen
DE19516719C2 (de) * 1995-05-06 1998-02-12 Memminger Iro Gmbh Fadenzuliefervorrichtung
US5860298A (en) * 1997-05-23 1999-01-19 Jen Hui Chen Thread feeder with thread-twisting preventive device for knitting machines

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3901052A (en) * 1973-04-30 1975-08-26 Iro Ab Thread delivery device for textile machines

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1151630B (de) * 1959-10-02 1963-07-18 Fouquet Werk Frauz & Planck Fadenliefervorrichtung fuer Rundstrick- und Rundwirkmaschinen
US3209558A (en) * 1963-12-03 1965-10-05 Kendall & Co Yarn furnishing device
GB1109788A (en) * 1966-03-30 1968-04-18 Standard Knitting Company Ltd Improved method of and means for feeding metallic yarns or threads to knitting machines
US3303671A (en) * 1966-05-03 1967-02-14 Jr Thomas Anderson Oliver Yarn feeding means for knitting machines
US3590601A (en) * 1967-06-27 1971-07-06 Asahi Chemical Ind Apparatus for feeding elastic yarn to a circular knitting machine
DE8318792U1 (de) * 1983-06-29 1983-12-22 SIPRA Patententwicklungs- und Beteiligungsgesellschaft mbH, 7470 Albstadt Fadenspeicher- und -liefervorrichtung fuer textilmaschinen

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3901052A (en) * 1973-04-30 1975-08-26 Iro Ab Thread delivery device for textile machines

Also Published As

Publication number Publication date
US4681272A (en) 1987-07-21
ES8705538A1 (es) 1987-05-01
JPS61252330A (ja) 1986-11-10
ES554263A0 (es) 1987-05-01
DE3515104C1 (de) 1986-10-02
JPH0144818B2 (fr) 1989-09-29
EP0199174A1 (fr) 1986-10-29

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