EP0396902A1 - Méthode pour distribuer des fils et dispositif pour dévider des bobines pour réaliser cette méthode - Google Patents

Méthode pour distribuer des fils et dispositif pour dévider des bobines pour réaliser cette méthode Download PDF

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Publication number
EP0396902A1
EP0396902A1 EP90106336A EP90106336A EP0396902A1 EP 0396902 A1 EP0396902 A1 EP 0396902A1 EP 90106336 A EP90106336 A EP 90106336A EP 90106336 A EP90106336 A EP 90106336A EP 0396902 A1 EP0396902 A1 EP 0396902A1
Authority
EP
European Patent Office
Prior art keywords
thread
supply
take
drive
point
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
EP90106336A
Other languages
German (de)
English (en)
Other versions
EP0396902B1 (fr
Inventor
Valentin Krumm
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.)
Lindauer Dornier GmbH
Original Assignee
Lindauer Dornier 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
Priority claimed from DE3915491A external-priority patent/DE3915491A1/de
Priority claimed from SE8903230A external-priority patent/SE8903230D0/xx
Application filed by Lindauer Dornier GmbH filed Critical Lindauer Dornier GmbH
Priority to DE9007664U priority Critical patent/DE9007664U1/de
Publication of EP0396902A1 publication Critical patent/EP0396902A1/fr
Application granted granted Critical
Publication of EP0396902B1 publication Critical patent/EP0396902B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B65H49/00—Unwinding or paying-out filamentary material; Supporting, storing or transporting packages from which filamentary material is to be withdrawn or paid-out
    • B65H49/18—Methods or apparatus in which packages rotate
    • B65H49/34—Arrangements for effecting positive rotation of packages
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H59/00—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators
    • B65H59/38—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators by regulating speed of driving mechanism of unwinding, paying-out, forwarding, winding, or depositing devices, e.g. automatically in response to variations in tension
    • B65H59/384—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators by regulating speed of driving mechanism of unwinding, paying-out, forwarding, winding, or depositing devices, e.g. automatically in response to variations in tension using electronic means
    • B65H59/387—Regulating unwinding speed
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D41/00—Looms not otherwise provided for, e.g. for weaving chenille yarn; Details peculiar to these looms
    • D03D41/008—Looms for weaving flat yarns
    • 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
    • D03D47/345—Rotating bobbins
    • 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
    • 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
    • B65H2701/37—Tapes

Definitions

  • the invention relates to a thread delivery method and a unwinding device for yarns for carrying out the method, in particular for yarns with a tape character, the yarn being drawn off from a disk bobbin and fed to the weaving machine via a thread brake, according to the preamble of patent claim 1.
  • Such ribbon-like yarns are e.g. known in the form of unreinforced lurex yarns, these lurex yarns having approximately foil tape character, i.e. in cross section a rectangular profile.
  • Lurex yarns are drawn off from the head of the spool, ie over the flange.
  • the disk spool is here and the yarn is drawn off over the flange of the disk spool in such a way that increasing withdrawal of this yarn results in a twist in the yarn, which leads to a loop formation when the yarn is unloaded and not under tension.
  • the second part of the choice is particularly high for Lurex fabrics with a high percentage of weft and can only be achieved by a better running of the weaving machine, i.e. fewer downtimes to be dealt with.
  • any slight deflection that occurs with the cylindrical disc spools causes stretching especially when the thread layers run directly on the disc. This stretching can be seen in the fabric in the form of a thin spot or in a color difference of the lurex yarn.
  • the above-mentioned stretching also occurs when a loop is temporarily caught in the brake. Because the lurex thread is a ribbon, the bobbin is withdrawn overhead Yarn twists that accumulate at the first point of contact of the break-in brake and thus trigger curl, ie the smaller the bobbin becomes, the more layers are drawn off and the more twists are applied to the weft yarn.
  • the present invention is therefore based on the object of developing a thread delivery method and a unwinding device of the type mentioned in such a way that twists and loops associated therewith are reliably avoided when the yarn is pulled off an overhead bobbin.
  • the thread with zero turns is always from a constant location on the disc spool, e.g. the vertically uppermost point or any other point, without this point moving around the disc coil.
  • the disc spool is driven in the counterclockwise direction by the associated rotary drive.
  • a first embodiment is characterized in that the disc coil itself and the winding mounted thereon are scanned without contact.
  • This scanning is communicated to the rotary drive via a microprocessor control, so that it is ensured that the speed of the rotary drive for the disc bobbin, the increasing rotational speed is always tracked when the thread is pulled off the disc bobbin due to the decreasing diameter of the winding.
  • Another problem which is solved by the invention is that the thread is not only drawn off the disc spool without twist but also that additional stretching of the thread is avoided when it is pulled off the disc spool.
  • a first brake is arranged in the thread direction behind the disk bobbin, which is rotated in synchronism with the prewinder, namely in the direction of rotation, which counteracts the twist direction of the yarn.
  • a brake is arranged on the inlet side of the prewinding device, which is driven in rotation in the direction of rotation which counteracts the twist direction of the yarn.
  • this brake is driven in the opposite direction - but synchronously - with the rotating part of the pre-winding device to compensate for the twist that occurs in the pre-winding device.
  • the flange lying on the takeoff side of the disk coil is made enlarged.
  • the thread can therefore be easily pulled off the winding without the windings becoming attached to one another, which leads to thread breaks or stretching of the thread.
  • the enlarged diameter disc which is arranged on one flange side of the disc coil, is designed to be rotating or fixed. There are both options from the present invention.
  • a disc spool 1 is wound with a thread 2, which forms a winding 4 on the sink body 36 of the disc spool.
  • the disc coil 1 is laterally edged by flanges 3.
  • the disc coil 1 is rotatably driven by a motor 9, which is arranged on a machine base 8, which in turn is mounted on a support 7 in the direction of the arrows 20, 21.
  • the motor 9 is provided with a control 33, which interacts with a scanner 31, which has a measuring head 32 at its front, lower end, which scans the winding 4 of the disk coil 1 without contact.
  • the thread 2 is now, for example, drawn off the disk bobbin 1 in the winding direction (arrow direction 6).
  • the disc coil 1 is therefore driven in the opposite direction to the arrow direction 6 shown, namely in the arrow direction 5.
  • a disk 37 of enlarged diameter is connected to the disk bobbin 1 on one flange side, namely on the take-off side.
  • the disc 37 can also be rotatably mounted on the axis of the disc coil 1.
  • the take-off angle 38 is now substantially increased by the washer 37, so that the thread 2 is drawn off the winding 4 at a steeper angle in comparison to the longitudinal direction 34, and the advantageous effect described above occurs as a result.
  • the disc 37 also achieves an increase in the centrifugal force on the drawn-off thread, so that the thread-dissolving effect described is also thereby increased.
  • the disk 37 prevents the thread 2 from jamming in the vicinity of the two flanges 3.
  • the thread 2 is now drawn off in the direction of the longitudinal axis 34 at an oblique angle to this, as shown in FIG.
  • the brake 16 is only necessary and provided according to the invention if a pre-winding device 22 is used.
  • Some applications do not require a prewinder 22; Therefore, the brake 16 can then be omitted and instead only one further single brake 28 is used.
  • the brakes 16 and 28 are used together, the brake 16 ensuring the winding tension for the prewinder 22, while the brake 28 ensures the tension for the weft insertion of the downstream loom.
  • the pre-winding device 22 consists of a machine body which is mounted on the support 7 via a machine foot 25.
  • the thread is wound onto the cylinder 24.
  • the bobbin motor 9 can also be controlled by the microprocessor of the weaving machine.
  • FIG. 3 shows a supply spool 40 from which a thread 47 is unwound in connection with a rotation from a take-off point 44.
  • the supply spool 40 is rotatably driven by a motor 42 which has a control 43 which is connected to a signal generator 45.
  • the speed of rotation of the supply reel 40 is detected by a scanner 46, which can be optically, electrically or electronically.
  • the scanner is connected to a probe arm 48, which is mounted on an axle under spring preload, the scanner 46 recording the rotational speed of the supply reel 40.
  • the scanning point 44 is tracked via the controller 43 when the thread 47 is drawn off in connection with the rotation by the motor 42 in such a way that the removal point 44 on the outside of the supply spool comes to a standstill.
  • the scanner 46 which detects the speed of rotation of the supply spool 40, supplies a signal to the signal generator 45, the output signal of which is fed into the controller 43, whereby the speed of rotation of the motor which rotates the supply spool 40 is slowed down or accelerated, so that overall is achieved that the take-off point 4 stands still when pulling the thread 47.
  • a probe arm 49 can alternatively also be arranged on the outside, which in the same way detects the rotational speed or the change in diameter of the supply spool 40 and forwards its signal to the controller 43 of the motor 42.
  • FIG. 4 shows a frontal scanning of the supply spool 40 with a contactless scanner 50, the scanner becoming effective in a sensing area 51 and thereby detecting the change in the diameter of the supply spool 40.
  • two scanning arms 55, 56 which are in connection with scanners 53, are used to scan the supply coil 40.
  • the scanning arms 55, 56 are displaced with the scanners 53 - as is also explained according to FIG. 5a - or the scanning arms move relative to a specific scanning arm area on the scanner 53, so that a faster or slower one Signal for the tracking of the motor is generated.
  • Figure 6 is shown in the same schematic representation that there are two probe arms 55, 56, which are designed in the manner of a two-armed lever, these probe arms 55, 56 covering a scanning range of the scanners 57, 58, so that such a positive or negative signal is generated around the motor 42 via the controller 43, for. B. according to Figure 3.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
  • Unwinding Of Filamentary Materials (AREA)
  • Forwarding And Storing Of Filamentary Material (AREA)
  • Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)
EP90106336A 1989-05-12 1990-04-03 Méthode pour distribuer des fils et dispositif pour dévider des bobines pour réaliser cette méthode Expired - Lifetime EP0396902B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE9007664U DE9007664U1 (de) 1989-05-12 1990-04-03 Vorrichtung zum Liefern von fadenförmigem Material zu Webmaschinen

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE3915491A DE3915491A1 (de) 1989-05-12 1989-05-12 Abspuleinrichtung fuer garne
DE3915491 1989-05-12
SE8903230A SE8903230D0 (sv) 1989-09-29 1989-09-29 Fadenlieferverfahren
SE8903230 1989-09-29

Publications (2)

Publication Number Publication Date
EP0396902A1 true EP0396902A1 (fr) 1990-11-14
EP0396902B1 EP0396902B1 (fr) 1994-06-15

Family

ID=25880789

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90106336A Expired - Lifetime EP0396902B1 (fr) 1989-05-12 1990-04-03 Méthode pour distribuer des fils et dispositif pour dévider des bobines pour réaliser cette méthode

Country Status (3)

Country Link
EP (1) EP0396902B1 (fr)
JP (2) JPH0823100B2 (fr)
DE (1) DE59006101D1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2685687A1 (fr) * 1991-12-27 1993-07-02 Inst Francais Du Petrole Procede et dispositif pour corriger la torsion induite dans un fil lors du deroulement par l'interieur d'une bobine.
WO2000015533A1 (fr) * 1998-09-11 2000-03-23 Iro Patent Ag Systeme de traitement de fils
WO2001017886A1 (fr) * 1999-09-03 2001-03-15 Ingenjörsfirman Elektroteknik Ietv Ab Procede de commande d'un systeme de traitement de fils et systeme de traitement de fils approprie
WO2001058794A1 (fr) * 2000-02-11 2001-08-16 Iropa Ag Procede de livraison d'un fil sans torsion et dispositif livreur de fil
WO2006092115A1 (fr) * 2005-03-04 2006-09-08 Ontec Elektro- Und Steuerungstechnik Gmbh Dispositif d'introduction de fils de trame pour des machines de tissage, en particulier des machines de tissage a navette centrale
CN113213266A (zh) * 2021-05-08 2021-08-06 佛山市德嘉纺织有限公司 一种能提高纱线质量的络纱机

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08136170A (ja) * 1994-11-07 1996-05-31 Mitsubishi Cable Ind Ltd ヒートパイプ式冷却器

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1963486A1 (de) * 1969-03-21 1970-10-08 Schwermaschb Kom Ernst Thaelma Ablaufeinrichtung fuer Spulmaschinen
CH503649A (de) * 1969-10-30 1971-02-28 Schweiter Ag Maschf Trägervorrichtung für als Ablaufspulen verwendete Spinnkuchen oder Spulkränze an Spulmaschinen
GB2132239A (en) * 1982-03-06 1984-07-04 Pressac Ltd Unreeling apparatus for wires, threads and filaments
US4463911A (en) * 1982-06-02 1984-08-07 Signode Corporation Strap dispenser

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2341498C2 (de) * 1973-08-16 1975-10-02 Iro Ab, Ulricehamn (Schweden) Faden lefervorrichtung für Textilmaschinen
JPS57192981U (fr) * 1981-05-29 1982-12-07
IT1160833B (it) * 1983-03-24 1987-03-11 Pirelli Cavi Spa Perfezionamento a procedimento ed impianto per la riunione di cavi elettrici multipolari

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1963486A1 (de) * 1969-03-21 1970-10-08 Schwermaschb Kom Ernst Thaelma Ablaufeinrichtung fuer Spulmaschinen
CH503649A (de) * 1969-10-30 1971-02-28 Schweiter Ag Maschf Trägervorrichtung für als Ablaufspulen verwendete Spinnkuchen oder Spulkränze an Spulmaschinen
GB2132239A (en) * 1982-03-06 1984-07-04 Pressac Ltd Unreeling apparatus for wires, threads and filaments
US4463911A (en) * 1982-06-02 1984-08-07 Signode Corporation Strap dispenser

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2685687A1 (fr) * 1991-12-27 1993-07-02 Inst Francais Du Petrole Procede et dispositif pour corriger la torsion induite dans un fil lors du deroulement par l'interieur d'une bobine.
WO2000015533A1 (fr) * 1998-09-11 2000-03-23 Iro Patent Ag Systeme de traitement de fils
US6470918B1 (en) 1998-09-11 2002-10-29 Iro Patent Ag Yarn processing system
WO2001017886A1 (fr) * 1999-09-03 2001-03-15 Ingenjörsfirman Elektroteknik Ietv Ab Procede de commande d'un systeme de traitement de fils et systeme de traitement de fils approprie
US6820833B1 (en) 1999-09-03 2004-11-23 Ingenjoersfirman Elektroteknik Ietv Ab Method for controlling a yarn processing system and a yarn processing system
WO2001058794A1 (fr) * 2000-02-11 2001-08-16 Iropa Ag Procede de livraison d'un fil sans torsion et dispositif livreur de fil
US6726139B2 (en) 2000-02-11 2004-04-27 Iropa Ag Method for feeding a thread without twists and a thread feeding device
WO2006092115A1 (fr) * 2005-03-04 2006-09-08 Ontec Elektro- Und Steuerungstechnik Gmbh Dispositif d'introduction de fils de trame pour des machines de tissage, en particulier des machines de tissage a navette centrale
CN113213266A (zh) * 2021-05-08 2021-08-06 佛山市德嘉纺织有限公司 一种能提高纱线质量的络纱机

Also Published As

Publication number Publication date
EP0396902B1 (fr) 1994-06-15
JPH03206151A (ja) 1991-09-09
JP3051324B2 (ja) 2000-06-12
JPH0849136A (ja) 1996-02-20
JPH0823100B2 (ja) 1996-03-06
DE59006101D1 (de) 1994-07-21

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