EP0316587B1 - Contour cut - Google Patents

Contour cut Download PDF

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Publication number
EP0316587B1
EP0316587B1 EP88117201A EP88117201A EP0316587B1 EP 0316587 B1 EP0316587 B1 EP 0316587B1 EP 88117201 A EP88117201 A EP 88117201A EP 88117201 A EP88117201 A EP 88117201A EP 0316587 B1 EP0316587 B1 EP 0316587B1
Authority
EP
European Patent Office
Prior art keywords
cutting
pallet
cut
web
cutting region
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
EP88117201A
Other languages
German (de)
French (fr)
Other versions
EP0316587A3 (en
EP0316587A2 (en
Inventor
Wolfgang Bruder
Klaus Biervert
Jürgen Meybrink
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.)
Duerkopp Adler AG
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Duerkopp Adler AG
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Publication date
Application filed by Duerkopp Adler AG filed Critical Duerkopp Adler AG
Publication of EP0316587A2 publication Critical patent/EP0316587A2/en
Publication of EP0316587A3 publication Critical patent/EP0316587A3/en
Application granted granted Critical
Publication of EP0316587B1 publication Critical patent/EP0316587B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
    • B26F1/38—Cutting-out; Stamping-out
    • B26F1/3806—Cutting-out; Stamping-out wherein relative movements of tool head and work during cutting have a component tangential to the work surface
    • B26F1/3813—Cutting-out; Stamping-out wherein relative movements of tool head and work during cutting have a component tangential to the work surface wherein the tool head is moved in a plane parallel to the work in a coordinate system fixed with respect to the work
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
    • B26F1/38—Cutting-out; Stamping-out
    • B26F2001/3873—Cutting-out; Stamping-out advancing the material stepwise onto the work surface of the cutting machine
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S83/00—Cutting
    • Y10S83/929—Particular nature of work or product
    • Y10S83/936—Cloth or leather
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S83/00—Cutting
    • Y10S83/929—Particular nature of work or product
    • Y10S83/936—Cloth or leather
    • Y10S83/937—From continuous or wound supply
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/04—Processes
    • Y10T83/0524—Plural cutting steps
    • Y10T83/0529—Blanking and cutting
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/04—Processes
    • Y10T83/0605—Cut advances across work surface
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/444—Tool engages work during dwell of intermittent workfeed
    • Y10T83/463—Work-feed element contacts and moves with work
    • Y10T83/4632—Comprises a work-moving gripper
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/647—With means to convey work relative to tool station
    • Y10T83/6579—With means to press work to work-carrier
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/889—Tool with either work holder or means to hold work supply
    • Y10T83/896—Rotatable wound package supply
    • Y10T83/902—Plural supply sources

Definitions

  • the invention relates to a method for cutting blanks from webs of material which are moved over a cutting table and which are cut by means of cutting means, the blanks resulting in cross-sectional images which are shorter or longer than the cutting table and are distributed on the web of material such that the contours are strung together without significant waste.
  • the respective layer lengths must be a certain amount of safety (usually 3 to 5 cm) larger than the cut length to be cut out in order to obtain a clean cutting line at the end of each individual contour and also any tolerances when placing the individual ones Layers on the pallets or in the cutting tool setting.
  • a disadvantage of both methods is that the placement of the layers outside the cutting area results in high cycle times and the necessary safety additions require a high waste for each layer, which not only increases the manufacturing costs, but also a greater or lesser amount depending on the type of material used causes high environmental pollution during the necessary waste disposal.
  • DE-B-23 01 736 discloses a device for cutting a flat material, with which a more efficient way of working is possible, but the cutting process to be carried out with this device has the disadvantage that the material web is always fed at the same intervals regardless of the cut to be cut . This results in long cycle times and a large machine length.
  • the invention has for its object to provide a method for cutting blanks from material webs with the low Cycle times can be realized and this also makes it possible to dispense with the safety zone in the individual layers and to create a device for carrying out the method.
  • FIG. 1 shows the cutting device, which essentially consists of the cutting system 2, the upstream laying station 9 and the downstream clearing station 10.
  • the laying station 9 contains the reel changer 1, several pallets P and the fixed clamping bar 5 as well as one or more wagons W1 ... Wn which can be displaced longitudinally over the pallets P and on which the material reels D1 ... Dn can be rotatably attached.
  • the clearing stations 10 are used to remove the cut patterns.
  • the portal 11 of the cutting system 2 is provided with a limit switch, not shown, which responds when a pallet P has moved into the cutting area A and passes this switch.
  • material rolls D are loaded onto the trolleys W in accordance with the desired layer thickness of the material web 7.
  • the material rolls D are rotatably fastened on the carriage W and these are each applied to the roll changer 1 at the point X via the loading and unloading carriage 8, and material on the roll is passed under the tensioning bars 5, 6 (“threaded”).
  • the carriage W (in the drawing) is pushed to the left, so that it assumes the position X1 not previously occupied and the support point X becomes free again.
  • the clamping bar 6 is lowered and the material web 7 is drawn onto the pallet P1 and fixed there.
  • the length of each pallet corresponds at least to the length of the cutting area A.
  • the pallet P1 is transported into the cutting area A, the material being unwound from the rolls D in accordance with the distance traveled.
  • a well-known edge control ensures precise laying.
  • the entire sectional image SB is divided into individual segments S, the length of the individual segments S corresponding to the length of the cutting area A.
  • the individual patterns to be cut out are distributed within the overall sectional image SB taking into account the respective material width b in such a way that only a minimal waste remains. Possible methods for this are known from DE-OS 36 27 110. By using the method described below, it is irrelevant whether the contours to be cut extend beyond the segment boundaries SG or not, ie whether they are inside or still outside the cutting area A.
  • the cutting is started from the direction of the clearing station 10 to the laying station 9. It can be done with a double portal or as shown be worked with a mono cutting system.
  • the path-controlled cutting can be carried out by means of a conventional retraction control, wherein the individual contour data can be stored in the working memory of the control unit (how this can be done is shown in DE-OS 36 27 110 and DE-AS 23 01 736).
  • a contour cut K is made over the full width b of the material web 7, so that it is separated from the rolls.
  • this contour cut K is generally not made in a straight line, but rather — as shown — encloses the patterns lying within the cutting area A, which extend beyond the respective limit of the segment S currently being cut.
  • Patterns M1, M2, M3, which extend over two adjacent segments S, are therefore only partially cut out.
  • the NC-controlled cutting portal 11 moves back to point Z of the partially cut-out pattern, which extends the furthest into cutting area A. This is necessary so that, as will be explained further below, the pallet P2 can be guided under the partially cut contours.
  • the stationary clamping bar 5 is lowered onto the material web 7 still connected to the rollers D, so that it is held on the laying station 9.
  • the subsequent pallet P2 is transported so far forward that it (almost) abuts the pallet P1 located in the cutting area A.
  • the fixation by means of the clamping bar 5 ensures that the material web 7 does not crease when it comes into contact with the pallet 2.
  • Both pallets P1 and P2 are moved to the right at the same speed (in the drawing) until the pallet P2 passes the limit switch (not shown) on the cutting portal 11 and the further transport is interrupted. Now it is ensured that all partially cut out patterns M1 or M2 or M3 have come to rest completely on the pallet P2.
  • the clamping bar 6 is lowered while the fixed clamping bar 5 is released, as a result of which the material web 7 is fixed on the pallet 2, and both pallets P1, P2 are transported further until the pallet P1 has completely reached the clearing station 10 and the pallet P2 in the cutting area A. is.
  • the clamping bar 6 is released and returned to its starting point.
  • the clamping bar 6 can be provided with its own drive, which runs synchronously with the feed device.
  • a suitable control program makes it possible to convert the coordinates (x / y) of the point Z into the current coordinates (xo / y) and the cutting portal 11 can move to the point at which the pattern has already been partially cut, and with the further cutting is continued again from the direction of the clearing station 10 to the laying station 9; at the end again a contour cut K over the complete Width b of the material web 7 is carried out and the process described so far begins again.
  • the cut-out patterns can be removed at the clearing station 10 during the cutting program.

Description

Die Erfindung betrifft ein Verfahren zum Schneiden von Zuschnitten aus Materialbahnen, die über einen Schneidtisch bewegt werden und die mittels Schneidmitteln geschnitten werden, wobei die Zuschnitte Schnittlagenbilder ergeben, die kürzer oder länger als der Schneidtisch sind und so auf der Materialbahn verteilt werden, daß die Konturen ohne wesentlichen Verschnitt aneinandergereiht sind.The invention relates to a method for cutting blanks from webs of material which are moved over a cutting table and which are cut by means of cutting means, the blanks resulting in cross-sectional images which are shorter or longer than the cutting table and are distributed on the web of material such that the contours are strung together without significant waste.

Beim Zuschnitt dieser Materialen, beispielsweise Textilien, müssen Lagen vorgelegt werden, die der jeweiligen Schnittbildlänge entsprechen. In der Bekleidungsindustrie wird vorwiegend mit einer Lagenlänge von 4 bis 7 Meter gearbeitet, aus denen dann verschiedene Muster herausgeschnitten werden. In der Polstermöbelindustrie sind Lagen-(Schnittbild-)Längen von bis zu 15 Metern üblich. Die (Stoff-)Lagen werden außerhalb des Schneidtisches von Hand oder mittels einer Legemaschine auf Paletten ausgelegt. Daran anschließend wird jeweils eine Palette auf den Schneidtisch aufgelegt, bevor der Zuschnitt über handgeführte Stichmesser oder eine automatische Schneideinrichtung (zum Beispiel Wasser - oder Laserstrahl-Schneidanlage) vorgenommen werden kann.When cutting these materials, such as textiles, layers must be provided that correspond to the length of the cut pattern. The clothing industry mainly works with a layer length of 4 to 7 meters, from which various patterns are then cut out. Layer (sectional) lengths of up to 15 meters are common in the upholstered furniture industry. The (fabric) layers are laid out on the pallet by hand or using a laying machine. A pallet is then placed on the cutting table before the cut can be made using hand-held stitch knives or an automatic cutting device (for example water or laser beam cutting system).

Bei diesem Verfahren ist die maximal mögliche Schnittbildlänge begrenzt durch die Länge des Schneidtisches.With this method, the maximum possible sectional image length is limited by the length of the cutting table.

Für größere Längen ist es bekannt auf dem Schneidtisch rotierende Bürsten oder einen umlaufenden Förderer vorzusehen, die eine entsprechend längere Palette oder eine endlose Materialbahn über den Schneidtisch bzw. durch den eigentlichen Schneidbereich hindurch transportieren können (DE-C-30 03 273; FR-A- 2 378 118). Es ist durchaus üblich, auch mehrere Lagen übereinander auszulegen und in einem Arbeitsgang zu schneiden.For longer lengths it is known to provide rotating brushes or a rotating conveyor on the cutting table, which can transport a correspondingly longer pallet or an endless material web over the cutting table or through the actual cutting area (DE-C-30 03 273; FR-A - 2 378 118). It is quite common to lay out several layers on top of one another and cut them in one operation.

Für beide Verfahren ist zu berücksichtigen, daß die jeweiligen Lagenlängen um einen gewissen Sicherheitsbetrag (üblicherweise 3 bis 5 cm) größer sein müssen als die auszuschneidende Schnittlänge, um auch am Ende jeder einzelnen Kontur eine saubere Schnittlinie zu erhalten und außerdem etwaige Toleranzen beim Auflegen der einzelnen Lagen auf die Paletten oder in der Schneidwerkzeugeinstellung berücksichtigen zu können.For both methods, it must be taken into account that the respective layer lengths must be a certain amount of safety (usually 3 to 5 cm) larger than the cut length to be cut out in order to obtain a clean cutting line at the end of each individual contour and also any tolerances when placing the individual ones Layers on the pallets or in the cutting tool setting.

Nachteilig an beiden Verfahren ist, daß aus dem Auflegen der Lagen außerhalb des Schneidbereichs hohe Taktzeiten resultieren und die notwendigen Sicherheitszugaben bei jeder Lage insgesamt einen hohen Verschnitt bedingen, der nicht nur die Herstellkosten erhöht, sondern je nach Art des verwendeten Materials auch eine mehr oder weniger hohe Umweltbelastung bei der notwendigen Abfallbeseitung verursacht.A disadvantage of both methods is that the placement of the layers outside the cutting area results in high cycle times and the necessary safety additions require a high waste for each layer, which not only increases the manufacturing costs, but also a greater or lesser amount depending on the type of material used causes high environmental pollution during the necessary waste disposal.

Die DE-B-23 01 736 offenbart eine Vorrichtung zum Schneiden eines Flachmaterials, mit dem eine rationellere Arbeitsweise möglich ist, dem mit dieser Vorrichtung auszuführenden Zuschneidverfahren haftet aber der Nachteil an, daß die Materialbahn in immer gleichen Abständen vorgeschoben wird unabhängig von dem auszuschneidenden Zuschnitt. Dadurch erhält man lange Taktzeiten und eine große Maschinenlänge.DE-B-23 01 736 discloses a device for cutting a flat material, with which a more efficient way of working is possible, but the cutting process to be carried out with this device has the disadvantage that the material web is always fed at the same intervals regardless of the cut to be cut . This results in long cycle times and a large machine length.

Der Erfindung liegt die Aufgabe zugrunde ein Verfahren zum Schneiden von Zuschnitten aus Materialbahnen anzugeben mit dem niedrigen Taktzeiten realisierbar sind und das es zudem gestattet auf die Sicherheitszone bei den einzelnen Lagen zu verzichten, sowie eine Vorrichtung zur Durchführung des Verfahrens zu schaffen.The invention has for its object to provide a method for cutting blanks from material webs with the low Cycle times can be realized and this also makes it possible to dispense with the safety zone in the individual layers and to create a device for carrying out the method.

Die Lösung der Aufgabe erfolgt hinsichtlich des Verfahrens durch die Merkmale des Anspruchs 1 und hinsichtlich der Vorrichtung durch die Merkmale des Anspruchs 3. Die Unteransprüche geben sinnvolle Ausgestaltungen der Erfindung wieder.The problem is solved with regard to the method by the features of claim 1 and with respect to the device by the features of claim 3. The subclaims give meaningful embodiments of the invention.

Anhand von Zeichnungen soll die Erfindung näher erläutert werden.The invention will be explained in more detail with reference to drawings.

Es zeigt:

Figur 1
die Ansicht einer kompletten Schneidvorrichtung
Figur 2
die Draufsicht der Schneidvorrichtung nach Figur 1.
Figur 3
ein in einzelne Segmente unterteiltes Schnittbild.
It shows:
Figure 1
the view of a complete cutter
Figure 2
the top view of the cutting device of Figure 1.
Figure 3
a sectional view divided into individual segments.

Figur 1 zeigt die Schneidvorrichtung, die im wesentlichen aus der Schneidanlage 2, der vorgeordneten Legestation 9 und der nachgeordneten Abräumstation 10 besteht.FIG. 1 shows the cutting device, which essentially consists of the cutting system 2, the upstream laying station 9 and the downstream clearing station 10.

Die Legestation 9 beinhaltet den Rollenwechsler 1, mehrere Paletten P und den ortsfesten Klemmbalken 5 sowie ein oder mehrere über den Paletten P längsverschiebbar gelagerte Wagen W1 ... Wn, auf denen die Materialrollen D1 ... Dn drehbar befestigt werden können.
Die Abräumstationen 10 dient zum Entnehmen der ausgeschnittenen Muster.
Das Portal 11 der Schneidanlage 2 ist mit einem nicht näher dargestellten Endlagenschalter versehen, der dann anspricht, wenn eine Palette P in den Schneidbereich A eingefahren ist und diesen Schalter passiert.The laying station 9 contains the reel changer 1, several pallets P and the fixed clamping bar 5 as well as one or more wagons W1 ... Wn which can be displaced longitudinally over the pallets P and on which the material reels D1 ... Dn can be rotatably attached.
The clearing stations 10 are used to remove the cut patterns.
The portal 11 of the cutting system 2 is provided with a limit switch, not shown, which responds when a pallet P has moved into the cutting area A and passes this switch.

Vor Beginn des Zuschnitts werden entsprechend der gewünschten Lagenstärke der Materialbahn 7, Materialrollen D auf die Wagen W geladen. Dazu werden die Materialrollen D auf den Wagen W drehbar befestigt und diese über den Be- und Entladewagen 8 jeweils an der Stelle X auf den Rollenwechsler 1 aufgebracht und auf der Rolle befindliches Material unter den Spannbalken 5, 6 hindurchgeführt ("eingefädelt"). Daran anschließend wird der Wagen W (auf der Zeichnung) nach links geschoben, so daß er die bis dahin nicht besetzte Position X1 einnimmt und die Auflagestelle X wieder frei wird. Mit dem zweiten Wagen wird der zuvor beschriebene Ladevorgang wiederholt und nachdem auch die zweite Stoffbahn unter den Spannbalken 5, 6 hindurchgeführt wurde, wird der Wagen W wieder (auf der Zeichnung) nach links geschoben, so daß die Auflegestelle X wieder frei wird und jetzt die Position X1 und X2 besetzt sind.Before the start of the cut, material rolls D are loaded onto the trolleys W in accordance with the desired layer thickness of the material web 7. For this purpose, the material rolls D are rotatably fastened on the carriage W and these are each applied to the roll changer 1 at the point X via the loading and unloading carriage 8, and material on the roll is passed under the tensioning bars 5, 6 (“threaded”). Subsequently, the carriage W (in the drawing) is pushed to the left, so that it assumes the position X1 not previously occupied and the support point X becomes free again. With the second car, the loading process described above is repeated and after the second fabric has also been passed under the tensioning beams 5, 6, the car W is again pushed (in the drawing) to the left, so that the loading point X is free again and now the Positions X1 and X2 are occupied.

Dieser Vorgang wird so lange wiederholt, bis unter den Klemmbalken 5, 6 so viele einzelne Stoffbahnen übereinander geschichtet sind, daß sie der gewünschten Lagenstärke der Materialbahn 7 entsprechen. Der Klemmbalken 6 wird abgesenkt und die Materialbahn 7 auf die Palette P1 gezogen und dort fixiert. Die Länge jeder Palette entspricht mindestens der Länge des Schneidbereichs A. Zusammen mit dem Klemmbalken 6 wird die Palette P1 in den Schneidbereich A transportiert, wobei entsprechend der zurückgelegten Wegstrecke das Material von den Rollen D abgewickelt wird. Eine bekannte Kantensteuerung sorgt dabei für kantengenaues Legen.
Hat die Palette P1 ihre Endposition erreicht wird der Spannbalken 6 gelöst und in seine Ausgangsposition zurückgeführt. Hiernach kann der Schneidvorgang beginnen.This process is repeated until so many individual strips of material are layered one above the other under the clamping beams 5, 6 that they correspond to the desired layer thickness of the material web 7. The clamping bar 6 is lowered and the material web 7 is drawn onto the pallet P1 and fixed there. The length of each pallet corresponds at least to the length of the cutting area A. Together with the clamping bar 6, the pallet P1 is transported into the cutting area A, the material being unwound from the rolls D in accordance with the distance traveled. A well-known edge control ensures precise laying.
Once the pallet P1 has reached its end position, the clamping bar 6 is released and returned to its starting position. The cutting process can then begin.

Wie Figur 3 zeigt, wird das gesamte Schnittbild SB in einzelne Segmente S unterteilt, wobei die Länge der einzelnen Segmente S jeweils der Länge des Schneidbereichs A entspricht.
Die einzelnen auszuschneidenden Muster werden innerhalb des Gesamtschnittbildes SB unter Berücksichtigung der jeweiligen Materialbreite b so verteilt, daß nur ein minimaler Verschnitt bleibt. Mögliche Verfahren dazu sind aus der DE-OS 36 27 110 bekannt. Durch Anwendung des nachfolgend beschriebenen Verfahrens ist es dabei unerheblich, ob die zu schneidenden Konturen über die Segmentgrenzen SG hinausreichen oder nicht, sich also innerhalb oder noch außerhalb des Schneidbereichs A befinden.As FIG. 3 shows, the entire sectional image SB is divided into individual segments S, the length of the individual segments S corresponding to the length of the cutting area A.
The individual patterns to be cut out are distributed within the overall sectional image SB taking into account the respective material width b in such a way that only a minimal waste remains. Possible methods for this are known from DE-OS 36 27 110. By using the method described below, it is irrelevant whether the contours to be cut extend beyond the segment boundaries SG or not, ie whether they are inside or still outside the cutting area A.

Mit dem Zuschneiden wird von der Richtung der Abräumstation 10 zur Legestation 9 hin begonnen. Es kann wie gezeigt mit einer Doppelportal- oder aber mit einer Monoschneidanlage gearbeitet werden. Der bahngesteuerte Zuschnitt kann mittels einer üblichen Einziehsteuerung durchgeführt werden, wobei die einzelnen Konturdaten im Arbeitsspeicher des Steuerwerks gespeichert sein können (wie dies geschehen kann ist in der DE-OS 36 27 110 und der DE-AS 23 01 736 gezeigt).
Ist das Schneidportal 11 am Ende des Schneidbereichs A angelangt, wird ein Konturschnitt K über die vollständige Breite b der Materialbahn 7 durchgeführt, so daß diese von den Rollen abgetrennt wird. Dieser Konturschnitt K erfolgt aber in aller Regel nicht geradlinig sondern umschließt - wie gezeigt - die innerhalb des Schneidbereichs A liegenden Muster, die über die jeweilige Grenze des momentan geschnittenen Segments S hinausreichen.The cutting is started from the direction of the clearing station 10 to the laying station 9. It can be done with a double portal or as shown be worked with a mono cutting system. The path-controlled cutting can be carried out by means of a conventional retraction control, wherein the individual contour data can be stored in the working memory of the control unit (how this can be done is shown in DE-OS 36 27 110 and DE-AS 23 01 736).
When the cutting portal 11 has reached the end of the cutting region A, a contour cut K is made over the full width b of the material web 7, so that it is separated from the rolls. However, this contour cut K is generally not made in a straight line, but rather — as shown — encloses the patterns lying within the cutting area A, which extend beyond the respective limit of the segment S currently being cut.

Es ist nicht zwingend notwendig, den Konturschnitt K am Ende des Schneidbereichs auszuführen, sondern wie an Hand von Segment S2 in Figur 3 dargestellt ist, kann dies auch in der Mitte des Schneidbereichs A erfolgen, sofern durch die optimierte Musterauslage kein späterer Schnitt über die vollständige Breite b möglich sein sollte.It is not absolutely necessary to carry out the contour cut K at the end of the cutting area, but as is shown with the help of segment S2 in FIG Width b should be possible.

Dazu ist es natürlich notwendig ein entsprechendes Steuerprogramm zu verwenden, dessen Erstellung einem Softwaredesigner aber keine Schwierigkeit bereiten wird. Es werden also Muster M1, M2, M3, die sich über zwei benachbarte Segmente S erstrecken nur teilweise ausgeschnitten. Hieran anschließend fährt das NC - gesteuerte Schneidportal 11 an die Stelle Z des teilweise ausgeschnittenen Musters zurück, die am weitestens in den Schneidbereich A hineinreicht. Dies ist notwendig, damit, wie weiter unten erläutert wird, die Palette P2 unter die teilweise geschnittenen Konturen geführt werden kann.To do this, it is of course necessary to use an appropriate control program, the creation of which will not be a problem for a software designer. Patterns M1, M2, M3, which extend over two adjacent segments S, are therefore only partially cut out. Subsequently, the NC-controlled cutting portal 11 moves back to point Z of the partially cut-out pattern, which extends the furthest into cutting area A. This is necessary so that, as will be explained further below, the pallet P2 can be guided under the partially cut contours.

Der ortsfeste Klemmbalken 5 wird auf die noch mit den Rollen D verbundene Materialbahn 7 abgesenkt, so daß diese an der Legestation 9 festgehalten wird. Die nachfolgende Palette P2 wird so weit nach vorne transportiert, daß sie (fast) an die sich im Schneidbereich A befindenden Palette P1 anstößt. Durch die Fixierung mittels des Klemmbalkens 5 ist sichergestellt, daß die Materialbahn 7 bei Berührung mit der Palette 2 keine Falten wirft. Beide Paletten P1 und P2 werden mit gleicher Geschwindigkeit (auf der Zeichnung) nach rechts bewegt, und zwar so weit, bis die Palette P2 den am Schneidportal 11 befindlichen (nicht gezeigten) Endschalter passiert und der Weitertransport unterbrochen wird. Jetzt ist sichergestellt, daß alle teilweise ausgeschnittenen Muster M1 oder M2 oder M3 vollständig auf der Palette P2 zu liegen gekommen sind.The stationary clamping bar 5 is lowered onto the material web 7 still connected to the rollers D, so that it is held on the laying station 9. The subsequent pallet P2 is transported so far forward that it (almost) abuts the pallet P1 located in the cutting area A. The fixation by means of the clamping bar 5 ensures that the material web 7 does not crease when it comes into contact with the pallet 2. Both pallets P1 and P2 are moved to the right at the same speed (in the drawing) until the pallet P2 passes the limit switch (not shown) on the cutting portal 11 and the further transport is interrupted. Now it is ensured that all partially cut out patterns M1 or M2 or M3 have come to rest completely on the pallet P2.

Der Klemmbalken 6 wird abgesenkt, während der feststehende Klemmbalken 5 gelöst wird, wodurch die Materialbahn 7 auf der Palette 2 fixiert wird, und beide Paletten P1, P2 werden weiter transportiert, bis Palette P1 vollständig an der Abräumstation 10 und Palette P2 im Schneidbereich A angelangt ist. Der Klemmbalken 6 wird gelöst und an seinen Ausgangspunkt zurückgeführt. Der Klemmbalken 6 kann mit einem eigenen Antrieb versehen sein, der synchron mit der Vorschubeinrichtung läuft. Durch ein geeignetes Steuerprogramm ist es möglich, die Koordinaten (x/y) des Punktes Z in die jetzigen Koordinaten (xo/y) umzurechnen und das Schneidportal 11 kann an die Stelle, an der das Muster bereits teilweise geschnitten ist, fahren und mit dem weiteren Zuschnitt wird wieder von Richtung der Abräumstation 10 zur Legestation 9 hin fortgefahren; an dessen Ende erneut ein Konturschnitt K über die vollständige Breite b der Materialbahn 7 durchgeführt wird und der bisher beschriebene Vorgang erneut beginnt.The clamping bar 6 is lowered while the fixed clamping bar 5 is released, as a result of which the material web 7 is fixed on the pallet 2, and both pallets P1, P2 are transported further until the pallet P1 has completely reached the clearing station 10 and the pallet P2 in the cutting area A. is. The clamping bar 6 is released and returned to its starting point. The clamping bar 6 can be provided with its own drive, which runs synchronously with the feed device. A suitable control program makes it possible to convert the coordinates (x / y) of the point Z into the current coordinates (xo / y) and the cutting portal 11 can move to the point at which the pattern has already been partially cut, and with the further cutting is continued again from the direction of the clearing station 10 to the laying station 9; at the end again a contour cut K over the complete Width b of the material web 7 is carried out and the process described so far begins again.

Während des Schneidprogramms können an der Abräumstation 10 die ausgeschnittenen Muster entfernt werden.The cut-out patterns can be removed at the clearing station 10 during the cutting program.

In einer weiteren Ausgestaltung der Erfindung ist es denkbar den Transport der Paletten P von der Abräumstation 10 zur Legestation 9 unterhalb der Schneidvorrichtung vorzunehmen, so daß ein kontinuierlicher Umlauf von mindestens 4 Paletten erfolgen kann, was die Taktzeiten weiter reduziert.In a further embodiment of the invention, it is conceivable to transport the pallets P from the clearing station 10 to the laying station 9 below the cutting device, so that a continuous circulation of at least 4 pallets can take place, which further reduces the cycle times.

Claims (5)

  1. A method of automatically cutting at least single-layer blanks from webs of material which are moved over a cutting table and are cut by a cutting means, the blanks being converted into cut-layer patterns which are shorter or longer than the cutting table and are so distributed along the web of material that the contours are arranged relative to one another without significant waste, characterised by the following steps:
    - the web (7) of material for cutting is drawn off at least one roll (D1) of the material disposed in front of the cutting region (A), and is fixed to a pallet (P1),
    - the pallet (P1) is transported to the cutting region (A) of the cutter (2),
    - the total cut pattern (SB), allowing for the width (b) of the web of material, is divided into segments (S) equal to the table length of the cutter (2),
    - any blank extending into a subsequent segment (S) is only partly cut out in the first segment (S1), so that the full blank contour is cut out after the next segment (S2) has advanced, or alternatively it is not cut out in the first segment (S1), so that the cut is made in a single run only after the next segment (S2) or part- segment has been moved forward,
    - before the next segment (S2) has been moved forward, the web (7) of material is cut across its full width (b), the cut at least partly including the contours of the blank (contour cut K),
    - after the web (7) of material has been fixed in a stationary position relative to the cutter, a successive pallet (P2) is moved under the web (7) of material as close as possible to the first pallet (P1),
    - next, both pallets (P1, P2) are moved forward, simultaneously and at the same speed, until the successive pallet (P2) is under the contour cut (K),
    - the web (7) of material is fixed to the next pallet (P2) and the stationary fixing means is loosened, and
    - both pallets (P1, P2) are moved forward until the next segment (S2) for cutting is completely in the cutting region (A).
  2. A method according to claim 1, characterised in that a number of webs (7) of material are successively drawn off a number of rolls of material (D1 ... Dn) disposed in front of the cutting region (A) and are secured in the desired layer thickness on the pallet (P1).
  3. A device for working the method according to claim 1 or 2, comprising at least one cutter (2) and one laying station (9) in front thereof, characterised in that
    - a number of rolls (D) of material corresponding to the desired layer thickness of the web (7) of material are disposed in front of the cutter (2) in the laying station (9),
    - the rolls (D) of material are rotatably secured to longitudinally movable carriages (W),
    - the carriages (W) can be placed on a roll changer (9) which is arranged in the laying station (1) and which is provided with rails (3,4)
    - two clamping bars (5, 6) under which the material in each roll (D) is movable are disposed between the first roll (D1) of material or the first carriage (W1) and the cutting region (A) of the cutter (2), whereby the web (7) can be secured by the clamping bar (6), which can be transported into the cutting region (a), to the pallet (P1) which is disposed in front of the cutting region (A), and
    - the pallet (P1) is movable into the cutting region (A).
  4. A device according to claim 3, characterized in that a number of pallets (P1, P2 ...) are stationed underneath the carriages (W) and each pallet (P) driven into the cutting region (A) is replaceable by another.
  5. A device according to claim 3, characterized in that the roll changer (1) is in operative connection with at least one loading and unloading means (8) movable along one longitudinal side of the roll changer.
EP88117201A 1987-11-19 1988-10-15 Contour cut Expired - Lifetime EP0316587B1 (en)

Applications Claiming Priority (2)

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DE3739201A DE3739201C3 (en) 1987-11-19 1987-11-19 Contour cut
DE3739201 1987-11-19

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EP0316587A2 EP0316587A2 (en) 1989-05-24
EP0316587A3 EP0316587A3 (en) 1991-08-21
EP0316587B1 true EP0316587B1 (en) 1996-02-07

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EP (1) EP0316587B1 (en)
JP (1) JP2779629B2 (en)
DD (1) DD283577A5 (en)
DE (2) DE3739201C3 (en)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5163008A (en) * 1990-08-21 1992-11-10 Gerber Garment Technology, Inc. Method and apparatus for advancing sheet material for the cutting of successive segments thereof
US5042339A (en) * 1990-08-21 1991-08-27 Gerber Garment Technology, Inc. Method and apparatus for cutting successive segments of sheet material with cut continuation
US5216614A (en) * 1991-04-05 1993-06-01 Gerber Garment Technology, Inc. Apparatus and method for automatically cutting a length of sheet work material segment-by-segment
US5134911A (en) * 1991-04-05 1992-08-04 Gerber Garment Technology, Inc. Method for the interrupted cutting of a line in sheet material
US5214590A (en) * 1991-05-02 1993-05-25 Gerber Garment Technology, Inc. Method for splitting marker lines and related method for bite-by-bite cutting of sheet material
DE4128367A1 (en) * 1991-06-03 1993-03-04 Bullmer Spezialmaschinen Gmbh METHOD FOR CUTTING PARTS (CUT-OUT) FROM A MATERIAL SHEET, IN PARTICULAR FABRIC SHEET
DE69226704T2 (en) 1991-10-02 1999-06-02 Morrison Technology Ltd DEVICE FOR CUTTING TIPS
FR2707545B1 (en) * 1993-07-15 1995-10-20 Lectra Systemes Sa Method for carrying out traces or cuts along predetermined paths on a material.
JP3557646B2 (en) * 1994-05-27 2004-08-25 株式会社島精機製作所 Cutting machine and sheet material feeding cutting method
US5727433A (en) * 1995-09-08 1998-03-17 Gerber Garment Technology, Inc. Method for cutting sheet material
US6520057B1 (en) * 1997-09-30 2003-02-18 Eastman Machine Company Continuous system and method for cutting sheet material
IT1311417B1 (en) 1999-12-03 2002-03-12 Bierrebi Spa EQUIPMENT FOR CUTTING A TWO-DIMENSIONAL MATERIAL INPORTS SUITABLE FOR SHAPING.
US6794604B2 (en) * 2003-02-19 2004-09-21 Preco Laser Systems, Llc Web securing system for laser processing
US7201397B2 (en) * 2003-06-30 2007-04-10 Milliken & Company Airbag with irregularly shaped panels and segments
JP4025779B2 (en) * 2005-01-14 2007-12-26 独立行政法人 宇宙航空研究開発機構 X-ray concentrator
PT3274283T (en) 2015-03-23 2021-08-24 Roll O Matic As A wind-up apparatus for a web material
EP3560652B1 (en) * 2018-04-23 2021-06-23 TRUMPF Werkzeugmaschinen GmbH + Co. KG Method of processing plate-shaped material by means of a cutting jet, and data processing program
CN108823942B (en) * 2018-06-25 2020-04-14 拓卡奔马机电科技有限公司 Cutting bed self-adaptive waste material cutting method
CN112981914B (en) * 2021-02-06 2022-11-08 刘广伟 Mask melt-blown non-woven fabric separating machine
US11618177B1 (en) 2022-04-12 2023-04-04 Bradley W Boesel Orbital knife

Family Cites Families (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL280947A (en) * 1961-07-19 1900-01-01
US3393881A (en) * 1967-06-21 1968-07-23 L W Nash Company Coil and spool transfer buggy
US3438593A (en) * 1967-08-16 1969-04-15 Nash Co L W Coil- and spool-handling apparatus
GB1313856A (en) * 1969-07-05 1973-04-18 Masson Scott Thrissell Eng Ltd Multiple reel unwind stands
US3766813A (en) * 1971-08-05 1973-10-23 Gerber Garment Technology Inc Methods for cutting sharp corners and notches in layups of fabric and other sheet material
US3769488A (en) * 1972-01-19 1973-10-30 Hughes Aircraft Co Workload allocation for one or more tools in a laser cloth cutting system
US3768347A (en) * 1972-06-23 1973-10-30 M Wade Automatic carpet cutting machine
US3826170A (en) * 1972-07-18 1974-07-30 Kellwood Co Apparatus for cutting sheet material
US3803960A (en) * 1972-12-11 1974-04-16 Gerber Garment Technology Inc System and method for cutting pattern pieces from sheet material
US3844461A (en) * 1973-04-09 1974-10-29 Gerber Scientific Instr Co Precise indexing apparatus and method
FR2246680A1 (en) * 1973-10-04 1975-05-02 Bebe Confort Cutter device cuts panels for sanitary garments from tube - and has tube fed directly through it step by step
US3881376A (en) * 1974-03-05 1975-05-06 Wright Tool & Forge Co Socket ejecting mechanism for ratchet wrenches
FR2378118A1 (en) * 1977-01-21 1978-08-18 Anvar Automatically controlled multiple cutter - for the marking and cutting out of sail cloth etc.
US4176566A (en) * 1977-02-07 1979-12-04 Oxford Industries, Inc. Creel loading and cutting system
ES8101972A1 (en) * 1979-01-31 1980-12-16 Gerber Garment Technology Inc Apparatus and method for working on successive segments of sheet material
DE2944265A1 (en) * 1979-11-02 1982-03-25 Jagenberg-Werke AG, 4000 Düsseldorf DEVICE FOR THE MULTIPLE ROLLING OF RAILWAYS
DE3034621A1 (en) * 1980-09-13 1982-05-06 Aristo Graphic Systeme Gmbh & Co Kg, 2000 Hamburg METHOD AND CUTTING DEVICE FOR PRODUCING CUTS
FR2506133A1 (en) * 1981-05-20 1982-11-26 Lectra Systemes Sa METHOD AND MACHINES FOR CUTTING FABRIC INTO THICKNESS AND FOR PADDING CUT PARTS
ES8606809A1 (en) * 1985-04-01 1986-06-01 Investronica Sa Method of cutting sheet material.
ES8706339A1 (en) * 1985-05-22 1987-07-01 Investronica Sa Apparatus for cutting sheet material having one or more layers.
GB8514497D0 (en) * 1985-06-07 1985-07-10 Magnetronics Ltd Cutting of flexible material
EP0242607B1 (en) * 1986-04-14 1989-06-14 Ferag AG Device for exchanging roll supports in a winding station for printed products
DE3627110A1 (en) * 1986-08-06 1988-02-18 Duerkopp System Technik Gmbh METHOD AND DEVICE FOR OPTIMIZING A MATERIAL CUT
JPS63274534A (en) * 1987-05-06 1988-11-11 凸版印刷株式会社 Sheet cutting method
DE8804614U1 (en) * 1988-04-07 1988-05-19 Sulzer-Escher Wyss Gmbh, 7980 Ravensburg, De

Also Published As

Publication number Publication date
DE3854988D1 (en) 1996-03-21
DE3739201C2 (en) 1989-09-21
EP0316587A3 (en) 1991-08-21
DE3739201A1 (en) 1989-06-01
JP2779629B2 (en) 1998-07-23
JPH01246096A (en) 1989-10-02
DE3739201C3 (en) 1996-06-13
US4972745A (en) 1990-11-27
EP0316587A2 (en) 1989-05-24
DD283577A5 (en) 1990-10-17
US5146821A (en) 1992-09-15

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