WO2008014805A1 - Fournisseur de fil avec tambour fournisseur de fil amovible - Google Patents

Fournisseur de fil avec tambour fournisseur de fil amovible Download PDF

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Publication number
WO2008014805A1
WO2008014805A1 PCT/EP2006/007634 EP2006007634W WO2008014805A1 WO 2008014805 A1 WO2008014805 A1 WO 2008014805A1 EP 2006007634 W EP2006007634 W EP 2006007634W WO 2008014805 A1 WO2008014805 A1 WO 2008014805A1
Authority
WO
WIPO (PCT)
Prior art keywords
feeding device
yarn feeding
shaft
yarn
fastening element
Prior art date
Application number
PCT/EP2006/007634
Other languages
German (de)
English (en)
Inventor
Richard Kaufmann
Michael Mixner
Markus Hermann
Original Assignee
Memminger-Iro 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 Memminger-Iro Gmbh filed Critical Memminger-Iro Gmbh
Priority to CN200680055509XA priority Critical patent/CN101501260B/zh
Priority to EP06776549A priority patent/EP2047018B1/fr
Priority to PCT/EP2006/007634 priority patent/WO2008014805A1/fr
Priority to TW096103111A priority patent/TWI348507B/zh
Publication of WO2008014805A1 publication Critical patent/WO2008014805A1/fr

Links

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

Definitions

  • the invention relates to a yarn feeding device, in particular a positive feed.
  • Yarn feeding devices are basically known devices that are used in large numbers on textile machines, for example on circular knitting machines. They serve to control the individual knitting points supplied thread.
  • EP 0 333 482 A1 discloses a yarn feeding device with a carrier, which is set up for attachment to a textile machine. He points to a corresponding mouth with a clamping screw.
  • a shaft is rotatably mounted in a vertical orientation. This shaft has several pulleys over which it is driven.
  • the shaft carries a thread feed rad, which is wrapped at least once by the thread, which is thereby promoted upon rotation of the yarn feed wheel.
  • the yarn feed wheel is attached to the lower end of the shaft by means of a washer and a nut which is screwed onto a threaded stub provided on the shaft. A change of Fadenarrirads is not provided.
  • the shaft in place of the threaded bore on an axially from the lower front end projecting threaded stub on which a machine screw sits, which holds the thread storage drum. A change of the same is not provided.
  • the yarn feeding device has a yarn feed wheel, which by means of a manually operated Fastening element with the rotatably mounted shaft is to be connected.
  • the manually operable fastener is a screw or nut that engages an internal or external thread of the shaft. It is provided with a handle that allows a tool-free operation, ie a tool-free tightening and loosening the fastening screw or nut. This regardless of the possibility to rotate the drive shaft of the yarn feed wheel both clockwise and counterclockwise.
  • the fastener is used for frictionally coupling the Fadenunterrads with the shaft.
  • a positive connection between the shaft and the yarn feed wheel is preferably not provided. This facilitates the attachment of the Fadenarrirads to the shaft, because there are no special rotational positions must be set to connect shaft and Fadenunterrad together. If so desired, however, an additional form-fit can be provided to ensure a rotationally fixed coupling between the shaft and yarn feed even when not quite tightened mounting screw or nut.
  • the provided on the fastening screw or nut handle can be, for example, a molded plastic part.
  • this is relatively flat, so that it does not or only slightly beyond the lower edge of the yarn feed wheel.
  • the fastening element is provided in addition to the handle with a coupling for connecting a tool.
  • This coupling may for example be an opening with hexagonal cross-section, a screwdriver slot or a screwdriver cross slot or the like. This tool attachment opening can be used as an assembly aid in serial industrial production or even if the fastening screw or nut is so tight that it can not be loosened by hand.
  • the yarn feed wheel is provided on its serving for receiving the shaft opening with an edge or collar, which rests flat against the shaft and thereby serves for the correct radial alignment of the yarn feed wheel.
  • a certain game is present and tolerable. It enables the easy insertion and removal of the yarn feed wheel.
  • To eliminate any wobble, however, serves an interrupted or contiguous trained annular surface on which the yarn feeding wheel finds its axial abutment.
  • the fastening screw or nut biases the yarn feed wheel against this annular surface. This will cause positioning errors in Result of manufacturing tolerances on the collar of the opening of the yarn feed wheel and assembly tolerances and errors eliminated. It is ensured that the yarn feed wheel runs without tumbling even after many changes and despite certain production tolerances.
  • the yarn feed wheel can be formed as a sheet metal bent part.
  • the fastening element is designed as a fastening screw.
  • the fastening screw is preferably provided on its front side with a ring cutting edge.
  • the annular cutting edge makes it possible to penetrate paint layers present on the machine ring and thus establishes electrical contact between the holder and the machine ring.
  • it centered ring cutter the mounting screw where she worked less deep into the machine ring as an alternative possible tip.
  • FIG. 1 shows a diagrammatic, simplified side view of a yarn feeding device according to the invention
  • Figure 2 shows the yarn feeding device of Figure 1 in a fragmentary perspective view with Look at the underside of the thread delivery wheel
  • FIGS. 1 and 2 shows the shaft-hub connection of the yarn feed wheel according to FIGS. 1 and 2 in a vertically sectioned illustration
  • FIG. 4 shows the fastening element according to FIG. 3 in a plan view
  • Figure 5 shows a modified embodiment of the shaft-hub Verbmdung the Fadenunterrads in a vertically sectioned view.
  • Figure 1 illustrates a yarn feeding device 1, which serves to supply a textile machine with thread. If the textile machine is, for example, a circular knitting machine, then this is provided with a holder, a so-called machine ring 2, on which many such yarn feeding devices 1 sit and in each case supply thread to the knitting points.
  • the delivery is positive, i. essentially slip-free. That The individual knitting points are fed defined amounts of thread.
  • the fastening device 4 is formed for example by a mouth-like recess in the carrier 3, which is associated with a fastening screw 5.
  • a handle 6 This can be formed for example by a molded plastic part.
  • the yarn feeding device 1 has a shaft 7 rotatably mounted on the carrier 3, which carries at its upper end o- above the carrier 3 at least one pulley 8, which serves for the rotational driving of the shaft 7.
  • a plurality of such pulleys 8 may be provided, each of which may engage different belts.
  • the shaft 7 is connected to a yarn feed wheel 9, which serves to convey the yarn 10.
  • This passes through a plurality of eyelets 11, 12, 13 and a thread brake 14, which is arranged with respect to the direction of the thread 10 before the yarn feed wheel 9 and formed, for example, by magnetic force adhering rings i st.
  • the yarn feed wheel 9 is preferably a bent sheet metal part or deep drawn part. As shown in FIG. 2, it has a lower end wall 15, over which an edge 16 projects downwards. In this case, “downward” means in the direction of the shaft 7, extending beyond the free end thereof, but it is also possible to use thread supply wheels which are designed as a rod cage, which can be rigidly formed As described in DE 31 05 990 A1, the yarn feed wheel is then formed by two pin drums which are pushed into one another and whose axes of rotation are inclined by a few degrees, one pin drum being fastened to the shaft, while the other pin drum is attached to the drum An angular ball bearing is mounted on the carrier 3. The relative movement between the two synchronously rotating pin drums causes the feeding of a thread winding which wraps around the pin drums.
  • the yarn feed wheel 9 may alternatively be formed as a rod cage or otherwise.
  • a fastener 18 for fastening the yarn feed wheel 9 on the shaft 7 is a fastener 18, for example in the form of a provided with a handle 19 screw 20, as can be seen from Figure 3.
  • the screw 20 is screwed in this embodiment in a coaxial in the shaft 7 threaded bore 21 having an internal thread 22.
  • the screw 20 is connected to a corresponding outer PHgewinde 23 provided that fits the internal thread 22.
  • the internal thread 22 is preferably set back against the end face of the shaft 7, so that the external thread 23 and the internal thread 22 engage only a few (for example less than 10, preferably less than 5) revolutions. This allows the yarn feed wheel with a few simple steps to solve and fasten. In addition, the then relatively short internal thread 22 can be made easier.
  • the screw 20 is overmolded on its head 24 with an artificial material body 25 which forms the handle 19.
  • the handle is square, for example, in plan view, wherein grip recesses 26, 27 are formed at its edges. These are so flat that at any point parallel to the radial direction R standing surfaces are formed.
  • the handle 19 is preferably so flat that it does not project beyond the lower edge 16. However, it can also, as Figure 1 illustrates, slightly above the edge 16 protrude down.
  • the head 24 is also provided with a lug opening 28 for non-rotatably attaching a tool, for example a hexagon socket, to the screw 20.
  • a tool for example a hexagon socket
  • an annular cutting edge 28 is formed on the end face of the threaded shaft of the screw 20, which is oriented concentrically to the longitudinal center axis of the screw 20.
  • the shaft 7 is cylindrical on its outer periphery, in particular in the lower end region.
  • a sleeve 29 which forms an abutment for the end wall 15 of the yarn feed wheel 9.
  • the sleeve 29 is axially immovably connected to the shaft 7. It has on its front side a flat annular plane surface 30, which serves for the wobble-free orientation of the yarn feed wheel 9.
  • the sleeve 29 defines with the outer surface of the shaft 7 an annular space 31 which serves to receive a formed on the end wall 19 pipe flange 32 of the yarn feed wheel 9.
  • the pipe flange defines an approximately cylindrical opening whose axial length is greater than the thickness of the existing sheet metal end wall 15. In the radial direction of the pipe flange 32 has little play on the shaft 7, which is in the range of hundredths or tenths of a millimeter.
  • a washer 33 is provided between the screw 20 and the end wall 15. The end wall is clamped between the washer 33 and the plane surface 30.
  • timing belt rotates the pulley 8 and with this the yarn feed wheel 10 right or left.
  • the thread spool 9 looping around the thread is thereby fed to the knitting machine or other textile machine.
  • the handle 19 is largely covered by the edge 16. The handle generates only a small air movement and does not act as a fan blade. Thus, flow deposits are minimized.
  • the fastener 18 is released without the aid of a tool by the pulley 8 or the yarn feed wheel 18 is held and rotated with the other hand, the handle 19. If the screw is screwed out of the threaded hole 21, the Fadenunterrad can be changed and the Tighten screw 20 again. In this case, the pipe flange 32 of the other yarn feed wheel is again introduced into the annular space 31 and the screw 20 tightened. It presses on the washer 33, the wall 15 to the flat surface 30 and thereby aligns the yarn feed wheel 9 free of tumble.
  • the screw 20 can be exchangeable with the fastening screw 5 match. This signals to the operator, even if he does not know the yarn feeding device, that the fastening element 18 is a manually releasable element.
  • the two fastening screws 5, 20 can be replaced with each other.
  • the functionless blade 28 gains its function. If the screw 20 is used as a fastening screw 5, it secures the yarn feeding device 1 thanks to the action of the cutting edge 28 on the machine ring 2 long-term secure.
  • an electrical connection between the machine ring 2 and the carrier 3 is produced. Length and thread of the screw 20 are at least in an advantageous embodiment dimensioned so that the screw 20 can serve as a fastening screw 5.
  • FIG. 5 A modified embodiment is illustrated in FIG. 5.
  • the previous reference symbols and descriptions apply correspondingly.
  • the shaft 7 is provided with a projection 34 which carries external thread 35.
  • a nut 36 which is encapsulated by the plastic body 25 occurs.
  • the nut 36 is held positively in the plastic body 25.
  • the positive connection can be supported by a frictional connection, so that the plastic body 25 can be pulled off the nut 36.
  • a tool can be attached to the nut 36.
  • the nut 36 may be a hex nut.
  • the frictional engagement between the nut 36 and the plastic body 25 is preferably so strong that the plastic body 25 from the nut 36 can not fall unintentionally.
  • the frictional engagement can be supported by a latching connection.
  • An inventive yarn feeding device has a rotatably mounted shaft with a Fadenunterrad which is removably mounted.
  • the Fadenunterrads serves a fastener in the form of a nut or a screw, which are each provided with a handle.
  • the yarn feed wheel can be replaced by hand without the aid of tools.
  • the approach of a tool is possible.
  • Radial alignment and axial alignment and tumble-free axial alignment are provided by different functional surfaces, namely the flat surface 30 and cylindrical outer peripheral surface of the shaft 7.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Knitting Machines (AREA)

Abstract

L'invention concerne un fournisseur de fil qui présente un arbre monté rotatif avec une roue de fourniture de fil qui est montée de manière amovible. Pour la fixation de la roue de fourniture de fil, on utilise un élément de fixation en forme d'écrou ou de vis, qui est muni dans chaque cas d'une manette de préhension. De ce fait, la roue de fourniture de fil peut être remplacée à la main sans utiliser d'outil. Avantageusement, en variante ou en plus, on peut utiliser un outil. Pour l'ajustement sans nutation de la roue de fourniture de fil, on utilise de préférence une surface d'appui d'une butée tournée dans la direction axiale. L'orientation radiale et l'orientation axiale ainsi que l'orientation axiale sans nutation sont réalisées par différentes surfaces fonctionnelles, à savoir la surface du plan (30) et la surface périphérique extérieure cylindrique de l'arbre (7).
PCT/EP2006/007634 2006-08-02 2006-08-02 Fournisseur de fil avec tambour fournisseur de fil amovible WO2008014805A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
CN200680055509XA CN101501260B (zh) 2006-08-02 2006-08-02 带有可取下的喂纱滚筒的喂纱设备
EP06776549A EP2047018B1 (fr) 2006-08-02 2006-08-02 Fournisseur de fil avec tambour fournisseur de fil amovible
PCT/EP2006/007634 WO2008014805A1 (fr) 2006-08-02 2006-08-02 Fournisseur de fil avec tambour fournisseur de fil amovible
TW096103111A TWI348507B (en) 2006-08-02 2007-01-29 Yarn feeder with removable yarn feed drum

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2006/007634 WO2008014805A1 (fr) 2006-08-02 2006-08-02 Fournisseur de fil avec tambour fournisseur de fil amovible

Publications (1)

Publication Number Publication Date
WO2008014805A1 true WO2008014805A1 (fr) 2008-02-07

Family

ID=37616883

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2006/007634 WO2008014805A1 (fr) 2006-08-02 2006-08-02 Fournisseur de fil avec tambour fournisseur de fil amovible

Country Status (4)

Country Link
EP (1) EP2047018B1 (fr)
CN (1) CN101501260B (fr)
TW (1) TWI348507B (fr)
WO (1) WO2008014805A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102018115631A1 (de) * 2018-06-28 2020-01-02 Memminger-Iro Gmbh Fadenliefergerät und System mit einem Fadenliefergerät

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4092006A (en) * 1975-12-01 1978-05-30 Aktiebolaget Iro Thread storage and delivery device
FR2649455A1 (fr) * 1989-07-10 1991-01-11 Jouve Daniel Ecrou rapide
WO1992004549A1 (fr) * 1990-09-12 1992-03-19 Norman Leslie Matthews Dispositif de fixation
DE4300465A1 (de) * 1993-01-11 1994-07-14 Nass Magnet Gmbh Befestigungssystem
WO1999039109A1 (fr) * 1998-01-30 1999-08-05 Power Tool Holders Incorporated Dispositif de serrage actionne a la main
WO2005124167A1 (fr) * 2004-06-15 2005-12-29 Ludowici Plastics Limited Bouton ou cle serres a la main

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19840727A1 (de) * 1998-09-07 2000-05-25 Memminger Iro Gmbh Fadenliefergerät für Textilmaschinen
DE19932481A1 (de) * 1999-07-12 2001-01-18 Memminger Iro Gmbh Fadenliefergerät für Textilmaschinen

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4092006A (en) * 1975-12-01 1978-05-30 Aktiebolaget Iro Thread storage and delivery device
FR2649455A1 (fr) * 1989-07-10 1991-01-11 Jouve Daniel Ecrou rapide
WO1992004549A1 (fr) * 1990-09-12 1992-03-19 Norman Leslie Matthews Dispositif de fixation
DE4300465A1 (de) * 1993-01-11 1994-07-14 Nass Magnet Gmbh Befestigungssystem
WO1999039109A1 (fr) * 1998-01-30 1999-08-05 Power Tool Holders Incorporated Dispositif de serrage actionne a la main
WO2005124167A1 (fr) * 2004-06-15 2005-12-29 Ludowici Plastics Limited Bouton ou cle serres a la main

Also Published As

Publication number Publication date
CN101501260A (zh) 2009-08-05
TW200809027A (en) 2008-02-16
CN101501260B (zh) 2012-03-21
TWI348507B (en) 2011-09-11
EP2047018B1 (fr) 2011-12-21
EP2047018A1 (fr) 2009-04-15

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