EP0986511A1 - Procede pour enrouler un fil - Google Patents

Procede pour enrouler un fil

Info

Publication number
EP0986511A1
EP0986511A1 EP99916861A EP99916861A EP0986511A1 EP 0986511 A1 EP0986511 A1 EP 0986511A1 EP 99916861 A EP99916861 A EP 99916861A EP 99916861 A EP99916861 A EP 99916861A EP 0986511 A1 EP0986511 A1 EP 0986511A1
Authority
EP
European Patent Office
Prior art keywords
thread
traversing
bobbin
thread guide
speed
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.)
Withdrawn
Application number
EP99916861A
Other languages
German (de)
English (en)
Inventor
Klaus Bartkowiak
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.)
Oerlikon Barmag AG
Original Assignee
Barmag AG
Barmag Barmer Maschinenfabrik AG
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 Barmag AG, Barmag Barmer Maschinenfabrik AG filed Critical Barmag AG
Publication of EP0986511A1 publication Critical patent/EP0986511A1/fr
Withdrawn legal-status Critical Current

Links

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
    • B65H54/00—Winding, coiling, or depositing filamentary material
    • B65H54/02—Winding and traversing material on to reels, bobbins, tubes, or like package cores or formers
    • B65H54/38—Arrangements for preventing ribbon winding ; Arrangements for preventing irregular edge forming, e.g. edge raising or yarn falling from the edge
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
    • B65H2511/20—Location in space
    • B65H2511/22—Distance
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
    • B65H2511/20—Location in space
    • B65H2511/22—Distance
    • B65H2511/222—Stroke
    • 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 invention relates to a method for winding a continuously running thread into a bobbin according to the preamble of claim 1 and a device for carrying out the method according to the preamble of claim 13
  • the thread When traversing, the thread is deposited according to a speed function of the traversing thread guide.
  • This speed function is characterized by three sections.Firstly, the thread guide must be accelerated from the reversal point to a guiding speed.The distance that the thread guide travels until he has reached the desired guiding speed is defined as the reversing distance
  • the thread guide is then moved at the guide speed to the opposite end of the traversing stroke. The distance covered is referred to here as the linear path.
  • the thread guide is decelerated out of the guide speed in such a way that it has zero speed at the opposite reversal point.
  • the speed passed during the delay phase Distance is also defined as a reversal distance.
  • the two reversal points thus result in the defined length of the traversing stroke by adding these Three sections
  • the reversal distance of the thread guide is essentially determined by the set acceleration or deceleration of the thread guide.
  • the method according to the invention now uses exactly the acceleration or deceleration of the thread guide to influence the thread deposit.This is done by controlling the acceleration and deceleration in such a way that the lengths of the Continuously lengthening reversal distances with increasing spool diameter of the bobbin This ensures that the mass accumulation becomes smaller with increasing spool diameter in the edge area and thus no bulge-like bobbin edges occur The shorter the reversal distance, the lower the mass accumulation. However, the thread placement within the reversal distance remains stable, since on the circumference a - 3 -
  • a minimum length of the reversal path is set for each spool diameter, in which a fixed thread position on the spool surface is ensured. This allows the mass accumulation in the reversal paths to be minimized during the entire winding travel.
  • This method variant is based on the knowledge that the thread can be deposited on the bobbin surface within the reversing distance with a minimum radius without the thread slipping on the bobbin surface
  • the method variant from claim 3 is particularly advantageous in order to continuously determine the minimum length of the reversal path.
  • the minimum radius of curvature is the quotient between the bobbin diameter and the Double the coefficient of friction of the bobbin surface can be calculated
  • the coefficient of friction of the bobbin surface for textile threads is in the range of 0.2 to 0.6.For example, with a bobbin diameter of 200 mm, a minimum radius of curvature of the thread deposit within the reversing distance of 167 to 500 mm was obtained
  • the minimum length of the reversing path is continuously calculated by means of a control device and converted into control signals for controlling the acceleration and deceleration of the traversing thread guide
  • the coil diameter is continuously recorded and the control unit is specified for calculating the minimum length of the reversal distance. Since the coefficient of friction of the coil surface is essentially from - 4 -
  • control unit which is formed, for example, by a microprocessor, continuously calculates the minimum length of the Reversal distance off The calculated value is then immediately converted into control signals in order to control a drive of the traversing thread guide accordingly
  • the method according to the invention can be used both for winding the thread in a wild winding with a constant crossing angle or in a precision winding with changed crossing angles
  • the guiding speed of the traversing thread guide can be changed.This means that a different thread deposit can be generated in each single stroke within a double stroke.An advantageous linkage can also be achieved with a mirror interfering method.As a mirror, the appearance of the bobbin is referred to, in which the winding turns in successive layers Laying pieces of thread in the same direction more or less exactly on top of each other The symptoms of such mirrors are usually avoided by constantly moving the guiding speed or the traversing speed, which is specified as the number of back and forth movements (double stroke) of the traversing thread guide per unit of time, between an upper and lower limit is reduced and enlarged. By combining the changes in the reversal distances and a mirror disturbance, an even better binding of the thread layers in the edge region d he reached the coil
  • the length of the traversing stroke can be changed. This allows the build-up of high to be achieved even with settings with slow accelerations and decelerations
  • the method variant according to claim 11 is particularly suitable for influencing the coil structure within the linear path of the traversing stroke.
  • increasing the guide speed in the linear range without changing the deceleration would automatically lead to an extension of the reversal distance.
  • This also gives you the option of changing the length of the reversing section solely by controlling the guiding speed.
  • FIG 3 shows an exemplary embodiment of a device for carrying out the method according to the invention.
  • a coil 5 is shown in the upper half of the picture.
  • the coil 5 is wound on a sleeve 6.
  • the sleeve 6 is placed on a winding spindle 7. It is a cylindrical coil 5 wound with a constant crossing angle ⁇ with the end faces 1.
  • the coil 5 could also be a - 6 -
  • the bobbin 5 could be wound on any type of winding, such as wild winding, precision winding or step-precision winding as well as their combinations.
  • the bobbin 5 is by means of one not shown here Friction roller or driven directly by the winding spindle 7
  • Friction roller or driven directly by the winding spindle 7 The incoming thread is then guided shortly before being placed on the bobbin by a traversing thread guide 11 in the direction of movement 8 from the left end of the bobbin to the right end of the bobbin and in the direction of movement 9 from the right end of the bobbin to the left end of the bobbin of the traversing thread guide 11
  • the traversing thread guide could be driven, for example, by a linear drive or a belt drive.
  • the linear drive or the belt drive is connected, for example, to a stepper motor.
  • the movement of the thread guide could then be precisely controlled via a programmable control unit.
  • a thread layer 2 Shown on the bobbin surface 10, which is deposited during a traversing stroke.
  • the traversing stroke H which is equal to the wound length of the bobbin, is limited by the reversal point 3 located at each end.
  • the reversal point 3 is the position in which the thread guide does not If the speed now begins with the traverse stroke on the left side of the bobbin shown in FIG.
  • the thread is first laid within a reversing distance B L with a steadily increasing crossing angle as soon as the thread guide is accelerated to a guiding speed which is necessary for laying the thread
  • the thread is deposited on the bobbin surface with a constant crossing angle ⁇ .
  • This distance is referred to herein as linear path L.
  • the traversing thread guide 11 is decelerated in such a way that it again has the speed 0 at the reversal point 3 B R the thread is laid with a steadily decreasing crossing angle ⁇ .
  • the bobbin edges formed on the traversing stroke ends essentially depend on the thread deposit within the reverse path B depend
  • the reversal distances B are determined exclusively by the acceleration and deceleration of the traversing thread guide.
  • the thread position within the reversing path is directly related to the deceleration and acceleration of the traversing thread guide.
  • the thread positions in the reversing paths are defined by a radius of curvature p
  • a thread layer 2 is shown in FIG. 2 on the bobbin surface 10 at the right reversal area of a bobbin.
  • the abscissa of a diagram is placed by the reversal point 3.
  • the abscissa represents the length of the traversing stroke H shows the circumferential direction of the spool
  • the circumferential path u * t is entered on this.
  • u is the circumferential speed and t is the time.
  • the reversal point 3 denotes the end of the respective traversing stroke and is denoted by Ho in FIG. 2.
  • Ho The thread position 2 within the reversal path B is defined by the radius of curvature p
  • the crossing angle ⁇ is entered.
  • the traversing thread guide is thus guided with the guiding speed until the beginning of the reversing path.
  • the traversing thread guide begins to decelerate to to reversal point 3
  • the traversing thread guide is accelerated
  • a relationship between the radius of curvature p of the thread layer, the crossing angle ⁇ and the reverse path B can be derived from the arrangement shown in FIG.
  • the reversal distance B can be derived from the equation
  • D is the coil diameter and ⁇ is the coefficient of friction of the coil surface.
  • This calculation can be carried out continuously, for example, by the control unit of a stepping motor which drives the traversing thread guide.
  • the control unit generates control signals from the determined minimum length of the reversing path in order to control the stepper motor.
  • the traversing thread guide is thus impressed with a deceleration and an acceleration which lead to a minimum radius of curvature and thus to a minimum length of the reverse path.
  • the thread length stored per unit of time is thus reduced to a minimum.
  • the method according to the invention thus enables a thread to be wound into a bobbin with a more uniform mass distribution on the bobbin surface, regardless of breathing.
  • breathing ie a change in the traversing stroke
  • 3 shows an exemplary embodiment of a device for using the method according to the invention.
  • the traversing thread guide 11 is moved back and forth within a traversing stroke H by means of a belt drive 30.
  • the belt drive 30 is formed by the pulleys 26, 27 and 24.
  • the traversing thread guide 11 is attached to a belt 12 which wraps around the pulleys 26, 27 and 24 and is thereby moved back and forth between the pulleys 26 and 26.
  • the pulley 26 is rotatably mounted on an axle 29
  • the pulley 27 is rotatably mounted on the axle 28
  • the pulley 24 is connected to a drive shaft 25 which is driven in both directions by means of an electric motor 23, for example a stepping motor.
  • the electric motor 23 is controlled by a control device 19.
  • the control device 19 is connected to a control unit 13
  • a winding spindle 7 is arranged below the belt drive, on which the sleeve 6 is fastened.
  • the coil 5 is wound.
  • the speed of the winding spindle 7 is detected by means of a speed sensor 22 and the control unit 13 is given up.
  • the ratio between the traversing speed and the peripheral speed of the coil can be set. Since the winding spindle 7 belongs to a winding device which drives the coil 5 at a constant peripheral speed, the respective wound diameter of the coil can be calculated from the rotational speed. This calculation is carried out within the control unit 13.
  • the control unit 13 has a data input and a data memory in order to record the friction values of the coil surface and the crossing angle of the coil winding. On the basis of the stored data and the continuously measured speed, the control unit 13 can continuously calculate the minimum length of the reversal paths at the traversing stroke ends The control unit converts values into control signals and supplies them to the control device 19. The control device 19 controls the electric motor 23 accordingly, so that the traversing thread guide 11 with an acceleration or - 10 -
  • Delay is applied, which ensures compliance with the minimum length of the return path.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Winding Filamentary Materials (AREA)

Abstract

L'invention concerne un procédé pour enrouler un fil amené en continu, afin de former une bobine (5) sur un tube (6). A cet effet, le fil est guidé selon un mouvement alternatif dans le cadre d'une course de va-et-vient (H) au moyen d'un guide-fil (11), et est placé sur la bobine (5) avec un angle de bobinage. Le guide-fil à va-et-vient (11) est freiné, pour l'inversion de sens aux extrémités de la course de va-et-vient, respectivement sur une section d'inversion de sens (B), par une réduction finale de la vitesse de guidage, et est accéléré à nouveau jusqu'à la vitesse de guidage par une accélération finale. L'accélération et la décélération du guide-fil à va-et-vient sont commandées de telle manière que la longueur de la section d'inversion de sens augmente avec le diamètre croissant de la bobine.
EP99916861A 1998-03-20 1999-03-22 Procede pour enrouler un fil Withdrawn EP0986511A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19812327 1998-03-20
DE19812327 1998-03-20
PCT/EP1999/001922 WO1999048786A1 (fr) 1998-03-20 1999-03-22 Procede pour enrouler un fil

Publications (1)

Publication Number Publication Date
EP0986511A1 true EP0986511A1 (fr) 2000-03-22

Family

ID=7861713

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99916861A Withdrawn EP0986511A1 (fr) 1998-03-20 1999-03-22 Procede pour enrouler un fil

Country Status (5)

Country Link
US (1) US6308907B1 (fr)
EP (1) EP0986511A1 (fr)
CN (1) CN1197752C (fr)
TW (1) TW496849B (fr)
WO (1) WO1999048786A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TR200301809T4 (tr) 2000-01-13 2004-01-21 Barmag Ag Bir iplik bobinini sarmak için yöntem ve düzenek.
US6776367B2 (en) * 2002-04-10 2004-08-17 R & S Machinery & Design, Inc. Servo-controlled traverse mechanism for winder
US7467758B2 (en) * 2005-09-09 2008-12-23 Meggitt Defense Systems Reel-out, reel-in magazine and towline cartridge
WO2010133661A1 (fr) 2009-05-20 2010-11-25 Tessera Technologies Ireland Limited Identification d'expressions faciales dans des images numériques acquises
US8379917B2 (en) 2009-10-02 2013-02-19 DigitalOptics Corporation Europe Limited Face recognition performance using additional image features
CN102069950A (zh) * 2010-12-17 2011-05-25 东莞市协永福实业有限公司 一种新式单丝卷绕成形方法

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2345601A (en) * 1941-01-15 1944-04-04 Du Pont Yarn winding
GB1244167A (en) * 1967-12-08 1971-08-25 Ici Ltd Improvements in or relating to the control of the motion of a reciprocating memnber
US4771960A (en) 1985-02-20 1988-09-20 Teijin Seiki Co., Ltd. Method for winding a cross-wound package
DE3886468D1 (de) 1987-08-04 1994-02-03 Schubert & Salzer Maschinen Vorrichtung zur Fadenverlegung auf einer Kreuzspule.
DE3734478A1 (de) 1987-10-12 1989-04-27 Schubert & Salzer Maschinen Verfahren und vorrichtung zum fuehren, halten und trennen eines fadens beim spulenwechsel
JP2511711B2 (ja) * 1989-09-30 1996-07-03 帝人製機株式会社 糸条の巻取方法
EP0453622B1 (fr) * 1990-04-23 1995-02-15 Ssm Schärer Schweiter Mettler Ag Procédé et dispositif pour enrouler un fil sur une bobine
GB9024396D0 (en) * 1990-11-09 1991-01-02 Jeftex Limited Thread package building
TW368490B (en) * 1997-02-27 1999-09-01 Barmag Barmer Maschf Method of and apparatus for winding a continuously advancing textile yarn into a core supported package by controlling the acceleration and/or deceleration of the yarn guide to modify the yarn deposit in the package edges

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9948786A1 *

Also Published As

Publication number Publication date
CN1197752C (zh) 2005-04-20
WO1999048786A1 (fr) 1999-09-30
CN1258259A (zh) 2000-06-28
TW496849B (en) 2002-08-01
US6308907B1 (en) 2001-10-30

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