EP0263818B1 - Verfahren zum aufbringen von stoff auf einem falttisch sowie vorrichtung zur durchführung des verfahrens - Google Patents

Verfahren zum aufbringen von stoff auf einem falttisch sowie vorrichtung zur durchführung des verfahrens Download PDF

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Publication number
EP0263818B1
EP0263818B1 EP86903677A EP86903677A EP0263818B1 EP 0263818 B1 EP0263818 B1 EP 0263818B1 EP 86903677 A EP86903677 A EP 86903677A EP 86903677 A EP86903677 A EP 86903677A EP 0263818 B1 EP0263818 B1 EP 0263818B1
Authority
EP
European Patent Office
Prior art keywords
fabric
roller
supporting surface
laying
piece
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 - Lifetime
Application number
EP86903677A
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English (en)
French (fr)
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EP0263818A1 (de
Inventor
Hans Johansson
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.)
CESSIONE;NYA BLOMS KONFEKTIONSMASKINER AB
Original Assignee
BLOMS KONFEKTIONSMASKINER AB
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Filing date
Publication date
Application filed by BLOMS KONFEKTIONSMASKINER AB filed Critical BLOMS KONFEKTIONSMASKINER AB
Publication of EP0263818A1 publication Critical patent/EP0263818A1/de
Application granted granted Critical
Publication of EP0263818B1 publication Critical patent/EP0263818B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B65H45/00—Folding thin material
    • B65H45/02—Folding limp material without application of pressure to define or form crease lines
    • B65H45/06—Folding webs
    • B65H45/10—Folding webs transversely
    • B65H45/101—Folding webs transversely in combination with laying, i.e. forming a zig-zag pile
    • B65H45/103—Folding webs transversely in combination with laying, i.e. forming a zig-zag pile by a carriage which reciprocates above the laying station

Definitions

  • the present invention refers to a method for measuring, separating and transferring fabric, e.g. knitted fabric, from a stock, such as a roll, a staple or the like by means of a cloth laying machine in a tension-free condition to a laying table, whereby the fabric is fed from the stock via a feed roller and is laid down concurrently with the feed upon a horizontal mobile supporting surface, which is moved a distance corresponding to the length of the desired piece of fabric, the mobile supporting surface being arranged during the feed of the piece of fabric to lay down the piece upon the laying table concurrently with the extension of the supporting surface under the piece of fabric successively being reduced until the entire piece of fabric has been transferred to the laying table.
  • a stock such as a roll, a staple or the like
  • the invention also relates to a cloth laying machine for tension-free transfer of said fabric to a laying table, and incorporating a feed roller for feeding the fabric to a mobile supporting surface, which is movable a distance corresponding to the length of the desired piece of fabric.
  • US-A-3,768,800 describes an apparatus for stacking sheet-like flexible material, which apparatus comprises an endless conveyor belt guided around and mounted in a carriage horizontally reciprocable between two end positions, the rollers being mounted in the frame of the apparatus in such a way that a belt loop located between the forwardly moving part and the backwardly moving part of the belt is shortened when the carriage makes its outward stroke and resumes its original length when the carriage makes its return stroke.
  • the material is fed from below to the endless belt, whereby at least part of the horizontal positions of the material laid on the belt is subjected to tensile forces.
  • the material is a fabric the mere weight of this fabric may be enough to cause the fabric to be stretched thus that it subsequently may shrink somewhat, which is not acceptable.
  • the purpose of the present invention is to provide a method and a cloth laying machine, which make it possible to effect the tension-free transfer of fabric to a laying table. Another purpose is to effect this without any manual work and with a reliable and structurally uncomplicated construction.
  • the cloth laying machine comprises a frame 11, a laying table 12 and a carriage 14 displaceably arranged in guides 13 along the laying table.
  • the frame 11 is arranged upon a table 15, which is vertically adjustable relative to the laying table by means of adjustment devices 16 acting upon the table legs.
  • the frame 11 supports a feed roller 17, which is driven by a not further shown motor.
  • the feed roller is located in such a manner in the frame that its forward portion is situated outside the frame thus that the forward end 19 of a fabric 20 can hang freely down in front of the frame, such as shown in figure 1.
  • the fabric 20 comes from a stock (not shown), which can be a roll, a staple of cloth or the like.
  • the frame 11 is provided with guides 21 in which a carriage 22 is displaceably arranged, and which carriage supports a motor-driven roller 23.
  • a cutting device 24 which by means of an adjustment device 25 can be pivoted from an inactive position to the active position shown in figure 1.
  • a sensor 26 which optically senses the arc-shaped slacking of the fabric 20.
  • the feed roller 17 is axially displaceable by means of a not further shown electric shifting motor, which is controlled by photo-electric cells, which sense one side edge of the fabric with regard to its straightness or any deviations resp., which can be compensated by axially displacing the felt-coated feed roller 17 to a corresponding extent.
  • the carriage 14, shown in figure 2 is driven by a motor 27 via the transmission 28.
  • a flexible sheet material 31 is attached to this roller and it serves as a supporting surface for the fabric 20 and has its opposite end fixedly connected to the roller 23 at the frame 11.
  • the carriage 14 is equipped with a seizing member 32 incorporating two jaws 33 and 34 intended to receive and hold the forward edge 19 of the fabric.
  • the seizing member 32 is operated via a slewing bracket 35 by an adjusting device 36, which in one, its retracted, end position closes the jaws 33, 34 and in which position a rail 37 carried by the slewing brackets 35 is in an inactive position adjacent and below the roller 30, whereas the slewing brackets 35 and the rail 37 in the extended end position of the adjusting device occupy the position intimated with dash-and-dot lines in figure 3, in which position the rail is active as a smoothing rail.
  • the carriage 14 is furthermore equipped with a device 38 for vertical adjustment connected to a retainer 39 at which said roller 30 with its brackets 29 and the seizing member 32 with the smoothing rail and the associated driving device are attached, and which together can be successively raised in a direction away from the laying table 12.
  • the fabric 20 is fed from a roll of fabric by the feed roller 17 towards the laying table 12, thus that the end of the fabric will hang straight down from the roller.
  • the carriage 14 has been driven up to its initial position immediately adjacent the frame 11, in which position the seizing member 32 with its opened jaws 33, 34 is located just in front of the fabric end edge 19.
  • the end edge will be caught by the seizing member 32.
  • a sensing member (not shown), which senses when the fabric edge has entered the seizing member and which gives an impulse for closing the jaws.
  • the motor 27 of the carriage receives a starting pulse, which results in the carriage being displaced in a direction away from the frame 11.
  • a sensor 26 senses optically the arc-shaped slacking 40 of the fabric, and if this deviates from a pre-set value, the feed roller is started, which concurrently with the displacement of the carriage 14 feeds so much of the fabric that this during the entire pulling out stage will rest tension-free on the flexible sheet material 31 serving as supporting surface.
  • the carriage is automatically stopped and the cutting device 24 operates, at the same time as at least one holding-down rail (not shown) clamps the fabric against the frame.
  • the cutting device severs the fabric, and, as shown in figure 7, the severed fabric end 41 thereby will fall freely over the roller 23.
  • the carriage continues a short further distance, thus that the end 41 of the piece of fabric will be located upon the flexible sheet material 31.
  • flexible sheet material 31 has been wound off from the roller 23 at such pace that the flexible sheet material has been kept stretched.
  • the roller 30 on the other hand has not rotated.
  • the laying procedure is started, whereby the carriage 14 and the roller 30 simultaneously are begun to be displaced towards the frame 11.
  • the adjusting member 36 operates and pivots the rail 37 to active position, such as shown in figure 9.
  • the rollers 23 and 30 finally will occupy their initial position, shown in figure 10, whereby also the piece of fabric 20 has been entirely laid down on the laying table.

Landscapes

  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
  • Treatment Of Fiber Materials (AREA)

Claims (7)

1. Verfahren zum Messen, Trenne und Überführen von Stoff, beispielsweise Gewirk, von einem Vorrat, wie einer Rolle, einem Stapel od.dgl., mittels einer Stofflegemaschine in spannungsfreiem Zustand auf einen Legetisch (12), wobei der Stoff von dem Vorrat mittels einer Zuführrolle (17) zugeführt und gleichzeitig mit der Zufuhr auf eine horizontale, bewegliche Tragfläche (31) aufgelegt wird, die um eine Wegstrecke bewegt wird, welche der Länge des gewünschten Stoffabschnittes entspricht, wobei die bewegliche Tragfläche (31) während der Zufuhr des Stoffabschnittes derart angeordnet wird, daß der Stoffabschnitt auf den Legetisch gleichzeitig mit dem Ausfahren der Tragfläche unter den Stoffabschnitt sukzessiv verringert wird, bis der gesamte Stoffabschnitt auf den Legetisch überführt wurde, dadurch gekennzeichnet, daß der Stoff (20) von der Zuführrolle (17) vertikal nach unten zur beweglichen Tragfläche hin gefördert wird, wobei bogenförmige Schlaufen gebildet werden, daß die Geschwindigkeit der Zuführrolle (17) in Abhängigkeit vom Bilden der bogenförmigen Schlaufen des Stoffes gesteuert wird, daß der Stoff (20), der derart zugeführt wurde, abgetrennt wird, bevor das Ablegen auf dem Legetisch begonnen hat, und daß der gesamte Stoffabschnitt spannungsfrei auf die Tragfläche aufgelegt und die bewegliche Tragfläche (31) während der Zufuhr des Stoffes (20) auf Walzen (23, 30) aufgewickt oder von diesen abgewickelt wird, von welchen jeweils eine an jedem Ende der Tragfläche angeordnet ist.
2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß eine Längsseite des Stoffes (20) während des Transportes vom Vorrat zur Tragfläche (31) mittels eines Sensors erfaßt wird, der mittels einer Regeleinrichtung die axiale Verschiebung der Zuführrolle (17) regelt, um eine Abweichung des Stoffes vom Geradliegen auszugleichen.
3. Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß wenigstens gegen das Ende des Ablegens des Stoffes auf dem Legetisch (12) der Stoff mittels einer Schiene (37) geglättet wird, die zwischen dem Stoff und dem Legetisch bewegt wird.
4. Stofflegemaschine zum spannungsfreien Überführen von Stoff von einem Vorrat zu einem Legetisch gemäß Anspruch 1, mit einer Zuführrolle (17) zum Zuführen des Stoffes zu einer beweglichen Tragfläche (31), die um eine Wegstrecke beweglich ist, welche der Länge des gewünschten Stoffabschnittes entspricht, dadurch gekennzeichnet, daß die Zuführrolle oberhalb der Tragfläche angeordnet ist, welche aus einem flexiblen Bogenmaterial od.dgl. besteht, dessen beide Enden an einer antreibbaren Walze (23, 30) befestigt sind, daß das flexible Bogenmaterial (31) von den Walzen abgewickelt oder auf diese aufgewickelt werden kann, daß eine der Walzen (30) auf einem Wagen (14) angeordnet ist, der oberhalb des Legetisches (12) entlang Führungen bewegbar ist, daß die zweite Walze (23) zum Tragen der Tragfläche (31) an einem Rahmen (11) vorgesehen ist, der die Zuführrolle (17) trägt, und daß die zweite Walze (23) in begrenztem Maße in Bewegungsrichtung der ersten Walze (30) bewegbar ist, und zwar aus einer im wesentlichen außerhalb der Zuführrolle (17) befindlichen Position in eine im wesentlichen innerhalb der Zuführrolle befindlichen Position.
5. Legemaschine nach Anspruch 4, dadurch gekennzeichnet, daß am Wagen (14) innerhalb der ersten Walze (30) ein Greiforgan (32) vorgesehen ist, das sich in einer Endposition des Wagens in der Nähe des Rahmens (11) gerade vor der Endkante (19) des Stoffes befindet und von der Zuführrolle (17) herabhängt, und daß das Greiforgan derart gestaltet ist, daß es die Stoffkante erfaßt und festhält.
6. Legemaschine nach Anspruch 5, dadurch gekennzeichnet, daß am Wagen (14) zwischen der ersten Walze (30) und dem Greiforgan (32) eine Glättschiene (37) schwenkbar gelagert ist, die aus einer inaktiven Position neben der Walze in eine aktive Position unterhalb des Stoffes verschwenkbar ist.
7. Legemaschine nach einem oder mehreren der Ansprüche 4 is 6, dadurch gekennzeichnet, daß der Rahmen (11) sowie die erste Walze (30), das Greiforgan (32) und die Glättschiene (37) relativ zum Legetisch (12) vertikal einstellbar sind.
EP86903677A 1985-06-03 1986-06-03 Verfahren zum aufbringen von stoff auf einem falttisch sowie vorrichtung zur durchführung des verfahrens Expired - Lifetime EP0263818B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE8502726 1985-06-03
SE8502726A SE453287B (sv) 1985-06-03 1985-06-03 Sett att overfora tyg till ett leggbord och anordning for att genomfora settet

Publications (2)

Publication Number Publication Date
EP0263818A1 EP0263818A1 (de) 1988-04-20
EP0263818B1 true EP0263818B1 (de) 1990-10-03

Family

ID=20360428

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86903677A Expired - Lifetime EP0263818B1 (de) 1985-06-03 1986-06-03 Verfahren zum aufbringen von stoff auf einem falttisch sowie vorrichtung zur durchführung des verfahrens

Country Status (4)

Country Link
EP (1) EP0263818B1 (de)
DE (1) DE3674801D1 (de)
SE (1) SE453287B (de)
WO (1) WO1986007342A1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2644484B1 (fr) * 1989-03-16 1991-07-12 Lectra Systemes Sa Procede pour empiler plusieurs feuilles de matiere ayant des motifs repetitifs, tout en respectant la superposition des motifs d'une feuille a l'autre et dispositif pour sa mise en oeuvre

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3768800A (en) * 1972-01-13 1973-10-30 Veluwsw N Machine Ind Apparatus for stacking a sheet-like flexible material
DE2542713C3 (de) * 1975-09-25 1978-10-26 Scheithauer-Plasticmaschinen, 6146 Alsbach Vorrichtung zum Querschneiden von Materialbahnen und Stapeln von Material-Stücken
DE3113619C2 (de) * 1981-04-03 1984-04-05 G. O. Stumpf GmbH & Co KG, 7421 Mehrstetten Vorrichtung zur Kantensteuerung für eine Legemaschine
JPS591763A (ja) * 1982-06-19 1984-01-07 株式会社川上製作所 延反機

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
GB A 8102/1912 *

Also Published As

Publication number Publication date
SE8502726D0 (sv) 1985-06-03
DE3674801D1 (de) 1990-11-08
SE453287B (sv) 1988-01-25
EP0263818A1 (de) 1988-04-20
WO1986007342A1 (en) 1986-12-18
SE8502726L (sv) 1987-01-15

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