WO2009096800A1 - Procédés pour tendre un fil, tendeur de fil, armature d'un électroaimant utilisé dans le tendeur de fil et son utilisation - Google Patents

Procédés pour tendre un fil, tendeur de fil, armature d'un électroaimant utilisé dans le tendeur de fil et son utilisation Download PDF

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Publication number
WO2009096800A1
WO2009096800A1 PCT/PL2009/000012 PL2009000012W WO2009096800A1 WO 2009096800 A1 WO2009096800 A1 WO 2009096800A1 PL 2009000012 W PL2009000012 W PL 2009000012W WO 2009096800 A1 WO2009096800 A1 WO 2009096800A1
Authority
WO
WIPO (PCT)
Prior art keywords
yarn
armature
plate
overpress
arc
Prior art date
Application number
PCT/PL2009/000012
Other languages
English (en)
Inventor
Jan Wojtysiak
Wladyslaw Podsiedlik
Original Assignee
Instytut Technologii Eksploatacji-Panstwowy Instytut Badawczy
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 Instytut Technologii Eksploatacji-Panstwowy Instytut Badawczy filed Critical Instytut Technologii Eksploatacji-Panstwowy Instytut Badawczy
Publication of WO2009096800A1 publication Critical patent/WO2009096800A1/fr

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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
    • B65H59/00—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators
    • B65H59/10—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators by devices acting on running material and not associated with supply or take-up devices
    • B65H59/20—Co-operating surfaces mounted for relative movement
    • B65H59/22—Co-operating surfaces mounted for relative movement and arranged to apply pressure to material
    • 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
    • B65H2555/10—Actuating means linear
    • B65H2555/13—Actuating means linear magnetic, e.g. induction motors
    • 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

Definitions

  • the subject of this invention are: yarn tensioning methods and yarn tensioning device in textile industry processes, as well as the yarn tensioning device's armature, and use of the yarn tensioning armature.
  • yarn tensioning methods and yarn tensioning device in textile industry processes, as well as the yarn tensioning device's armature, and use of the yarn tensioning armature.
  • it is required to produce appropriate yarn tensioning, upon which the quality of yarn packing obtained is dependent, and finally the quality of textile products manufactured from such yarn. Solutions as per this invention will provide for obtaining a mean yarn tensioning value at some specific level, and will reduce its variable component.
  • the variation of yarn tension especially during formation of a package, has a negative effect on the yarn technological properties and, therefore, a suitable tension stabilizing device is required.
  • the function of tensioners is to ensure that tension of the yarn is maintained on a pre-set mean level and that its dynamic component is reduced to certain limits.
  • the mechanical tensioners which can be adjusted to a required tension of the yarn, are used.
  • modern machines can be equipped with active computer-controlled tensioners with the controlled yarn tension on the desired level independently of the motion parameters of the yarn and its initial tension.
  • a textile machine having draft mechanism is described.
  • This textile machine having the draft mechanism is characterized in that the tensioner member comprises at least two tensioner member portions connected to each other through a connection device, and the position of a slip plane for guiding the belts in the tensioner member can be fixed through the connection device so that the slip plane exists at an ideal position for guiding the belts during the operation.
  • a method for operating a workstation of a textile machine that produces crosswound bobbins comprises a bobbin drive, whose speed can be regulated in order to adjust the winding speed of the crosswound bobbin, a thread tensile force sensor, which is connected to a workstation computer, for monitoring the thread tensile force of a thread that is supplied from a feed bobbin and a thread tensioner for regulating the thread tensile force.
  • a value for a desired thread tensile force (FZKSoIl) and a value (TG) for a permitted proportional deviation from the desired thread tensile force (FZKSoIl) can be entered into the workstation computer.
  • the workstation computer can instantly suspend the winding process and trigger an alarm if the permitted proportional deviation from the desired tensile force (FZKSoIl) is exceeded.
  • the invention relates to a pneumatic thread stretcher (T) for a rapier weaving machine or a knitting machine, in which the air current deflection surface for deflecting the thread (Y, Yl) forms a seamless extension of the inner wall of the linear guide channel, through which the thread runs.
  • the invention also relates to a device (H) for changing the flow rate or the pressure of the air current along the deflection surface of the pneumatic thread stretcher (T) between at least two different levels, in accordance with the operating cycle o the textile machine.
  • the invention has at least one yarn delivery roller, and a drive device for a propulsion of the delivery roller, the drive device including a drive belt, a drive roller with a peripheral section alterable in diameter and at least in part in part looped around by the drive belt, and a tensioning unit with a guide member acting on the drive belt, the tensioning unit including a controller for producing at least one larger belt tension for normal operation of the delivery roller and a smaller belt tension for alteration of the diameter of the peripheral section of the drive roller.
  • JP10175777 (publ. 1998-06-30) a textile machinery manufacturing twill winding package is described.
  • a service unit is placed in a yarn rewinding part 2 and yarn 30 is accepted by what is called a yarn lifter at first.
  • this yarn can be prepared and held for a succeeding exchange operation.
  • the control computer 38 of the service unit takes charge of the guide of a yarn rewinding part computer 39 of a yarn rewinding part 2 via a mechanical bus 40 during an exchange operation.
  • the control of a yarn tensioner 13 is performed via the control computer 38 of the service unit.
  • a yarn tension value which is maintained by the yarn tensioner 14 during the exchange operation is related to a selected constitution of a package handling means or a twill package 11 every time.
  • a textile processing roller assembly is presented.
  • a cut-out is activated if an additional force is detected at the rollers, which would indicate that material has wound round the rollers.
  • the cut-out system registers changes at the unit which applies pressure to the rollers.
  • the cut-out has a force sensor between a section where force is applied and another section where the rollers are located.
  • the system also detect changes in the driving force applied by the drive to the rollers. It also has a sensor to register movement and/or force sensor to register the movement and/or force at a belt tensioner in the drive.
  • a throttle is in the pressure flow line between the pressure supply and the unit to apply pressure to the rollers, and a pressure sensor in the flow line in parallel to the throttle is linked to the cut-out system.
  • a barrier unit is parallel to the flow throttle.
  • the aim of the current invention is to render the means, which would provide for the mean yarn tensioning value at some specific level and reduce its variable component.
  • the subject of this invention is the yarn tensioning method that consists in passing yarn through the area, in which pressure which produces friction resistance is exerted on yarn, characterised in that the yarn displacement area is divided into a number of sections, in the area of which partial friction resistance forces are produced, whereas the amounts of partial forces are adjusted by means of magnetic circuits, in which the intensities of magnetic field flux is controlled by means of the supply voltage.
  • the yarn, both at the whole displacement area, and in the areas of the particular sections is affected by constant or variable pressures that cause friction forces.
  • the amounts of partial friction forces are summed up at the end of the yarn displacement area, or they are determined individually for each of the sections that make up the yarn displacement area, and are adjusted by means of magnetic circuits, in which the intensity of magnetic field flux is controlled by means of the supply voltage.
  • the next subject of invention is the yarn tensioning device that contains a plate made of para- or diamagnetic material placed between electromagnet poles, characterised in that the electromagnet poles are situated in the same plane as the ceramic plate or in a parallel plane, whereas the space between the poles of the electromagnet is limited by the frame with two beams that are placed in the upper part of shorter sides of this frame, which, together with the beams, forms the yarn displacement area.
  • the flexible tape is fixed to the beams and of the frame, and the cubicoid armature, which may have oblong or arc overpresses additionally made along their one longer side, are fixed to this tape at their ends, thus creating armature with arc overpress, or armature with an undercut or cubicoid cut-outs and protrusions and arc overpress, thus creating armature, as well as armature with an overpress, whereas armature create the sections that are necessary to produce partial friction resistance.
  • the cubicoid armature which may have oblong or arc overpresses additionally made along their one longer side
  • the plate is situated with the yarn guide, whereas, at the yarn outlet side, the yarn tension sensor containing the tensometric beam, placed in between the pins of the double-pin backfall, is fixed to the case of the device.
  • electromagnets have cores whose cross-section are U- or H-shaped.
  • the yarn tensioning device is presented on Fig. 1
  • the next subject of the invention is a yarn tensioning device's ferromagnetic armature, characterised in that along its one longer side, the armature has oblong or arc overpresses additionally made, thus creating the plate with arc overpress, or plate with an undercut, or cubicoid cut-outs and protrusions and arc overpress, thus creating plate, or plate with an overpress, whereas the armature creates the sections that are necessary to produce partial friction resistance.
  • the yarn tensioning device's armature is presented on Fig. 2 - 6.
  • the next subject of invention is a use of the armature, in which, along its one longer side, the armature has oblong or arc overpresses additionally made, thus creating the plate with arc overpress or the plate with an undercut, or cubicoid cut-outs and protrusions and arc overpress creating the plate, or the plate with an overpress, whereas the plates create the sections that are necessary to produce partial friction resistance, in which the yarn displacement area is divided into a number of sections, in the area of which partial friction resistance forces are produced, whereas the amounts of partial forces are adjusted by means of magnetic circuits, in which the intensity of the magnetic field flux is controlled by power supply, whereas the yarn, both in the whole displacement area and in the areas of the particular sections, is affected with constant or variable pressures that cause friction forces, and the amounts of partial friction forces are summed up at the end of the yarn displacement area, or they can be determined individually for each of the sections that make up the yarn displacement area, and they are adjusted by means of magnetic circuits, in which the intensity of
  • Fig. 1 shows a yarn tensioning device in axonometric view
  • Fig. 2 shows the cubicoid armature in axonometric view with the cross-section view
  • Fig. 3 shows the cubicoid armature with elongate overpress in axonometric view with the cross- section view
  • Fig. 4 shows the cubicoid armature with arc overpress arc in axonometric view with the cross-section view
  • Fig. 5 shows the cubicoid armature with cubicoid protrusion and arc overpress with cubicoid cut-out in axonometric view with the cross- section view
  • Fig. 5 shows the cubicoid armature with overpress with the cross-section view.
  • the device consists of (Fig. 1): body 9 with its flat abrasion-resistant ceramic plate 2 placed between two poles of electromagnet 3, whose core is U-shaped. In direct vicinity of the ceramic plate 2, a frame 7 is placed, at whose shorter sides, at the top, beams 7a and Tb are situated, and flexible tapes 6 are fixed to these beams, in the area of their ends. Cubicoid armature 5_, whose one longer side has oblong overpresses 8 are fixed to flexible tapes 6 with their ends.
  • the armature 5 (Fig. 2 - 6) may be used in various shapes; i.e. the cubicoid armature 5a with no overpresses, the cubicoid armature 5b with arc overpress 8 ⁇ or the cubicoid ferromagnetic armature 5c with an undercut, the cubicoid ferromagnetic armature 5d with cubicoid protrusion and cubicoid cut-out on longer sides, with an arc overpress being made in the cubicoid protrusion in the upper area, and some undercuts made on protrusions in the lower area, besides the cubicoid cut-out.
  • the cubicoid armature 5a free from undercuts are used for tensing the continuous fibre yarn
  • the armature 5b and the armature 5c are used for tensing the cut fibre yarn
  • the armature 5d and ferromagnetic armature 5e are used for tensing the yarn that is highly inhomogeneous, for instance the fancy yarn.
  • Yarn 1 is fed by the guide 4 into the area in between the ceramic plate 2 and the ferromagnetic armature 5_ which are fixed at their ends to the flexible tapes 6, whereas these tapes are fixed at their ends to the beams 7a and 7b placed in shorter sides of the three-sided frame 7, and then yarn 1 is fed through the yarn tensioning sensor ⁇ 2 in such a way that it goes under the first pin of backfall H, then on the tensometric beam K), and finally under the second pin of double-pin backfall 13_.

Landscapes

  • Tension Adjustment In Filamentary Materials (AREA)

Abstract

L'invention porte sur des procédés pour tendre un fil et sur un tendeur de fil utilisés dans des procédés de l'industrie textile ainsi que sur l'armature ferromagnétique du tendeur de fil et son utilisation. Dans un certain nombre de procédés de l'industrie textile, par exemple dans l'enroulement, l'ourdissage, la torsion ou la réunion de fil, la production d'une tension de fil appropriée est essentielle et déterminant la qualité de serrage de fil obtenu, et, en fin d'analyse, la qualité des produits textiles fabriqués avec ces fils. Les solutions proposées par la présente invention permettent de produire une tension moyenne du fil à un niveau spécifique déterminé et de réduire sa composante variable.
PCT/PL2009/000012 2008-02-01 2009-01-30 Procédés pour tendre un fil, tendeur de fil, armature d'un électroaimant utilisé dans le tendeur de fil et son utilisation WO2009096800A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
PL83436208 2008-02-01
PLPL834362 2008-02-01

Publications (1)

Publication Number Publication Date
WO2009096800A1 true WO2009096800A1 (fr) 2009-08-06

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/PL2009/000012 WO2009096800A1 (fr) 2008-02-01 2009-01-30 Procédés pour tendre un fil, tendeur de fil, armature d'un électroaimant utilisé dans le tendeur de fil et son utilisation

Country Status (1)

Country Link
WO (1) WO2009096800A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0294323A1 (fr) * 1987-05-27 1988-12-07 GebràœDer Sulzer Aktiengesellschaft Frein de fil commandé électroniquement et utilisation d'un tel frein de fil
DE4433876A1 (de) * 1993-09-29 1995-03-30 Nuovo Pignone Spa Schußbremse für eine schützenlose Webmaschine
WO1997011016A2 (fr) * 1995-09-20 1997-03-27 Iro Ab Dispositif et procede de regulation de la tension d'un fil et fournisseur de fil
WO1998045201A1 (fr) * 1997-04-07 1998-10-15 Picanol N.V. Frein de fil
EP1095893A2 (fr) * 1999-10-26 2001-05-02 L.G.L. Electronics S.p.A. Frein de fil de trame, plus particulièrement pour métiers à tisser
PL372024A1 (pl) * 2004-12-31 2006-07-10 Inst Tech Eksploatacji Naprężacz przędzy

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0294323A1 (fr) * 1987-05-27 1988-12-07 GebràœDer Sulzer Aktiengesellschaft Frein de fil commandé électroniquement et utilisation d'un tel frein de fil
DE4433876A1 (de) * 1993-09-29 1995-03-30 Nuovo Pignone Spa Schußbremse für eine schützenlose Webmaschine
WO1997011016A2 (fr) * 1995-09-20 1997-03-27 Iro Ab Dispositif et procede de regulation de la tension d'un fil et fournisseur de fil
WO1998045201A1 (fr) * 1997-04-07 1998-10-15 Picanol N.V. Frein de fil
EP1095893A2 (fr) * 1999-10-26 2001-05-02 L.G.L. Electronics S.p.A. Frein de fil de trame, plus particulièrement pour métiers à tisser
PL372024A1 (pl) * 2004-12-31 2006-07-10 Inst Tech Eksploatacji Naprężacz przędzy
PL199128B1 (pl) * 2004-12-31 2008-08-29 Inst Tech Eksploatacji Naprężacz przędzy

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