EP0384914B1 - Cutting installation for cutting out blanks from web material - Google Patents

Cutting installation for cutting out blanks from web material Download PDF

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Publication number
EP0384914B1
EP0384914B1 EP90890042A EP90890042A EP0384914B1 EP 0384914 B1 EP0384914 B1 EP 0384914B1 EP 90890042 A EP90890042 A EP 90890042A EP 90890042 A EP90890042 A EP 90890042A EP 0384914 B1 EP0384914 B1 EP 0384914B1
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EP
European Patent Office
Prior art keywords
cutting
waste
band
roller
deflecting roller
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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
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EP90890042A
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German (de)
French (fr)
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EP0384914A1 (en
Inventor
Gottfried Dipl.-Ing. Blaimschein
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Individual
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Individual
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    • 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
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/01—Means for holding or positioning work
    • B26D7/018—Holding the work by suction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/18—Means for removing cut-out material or waste
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/18—Means for removing cut-out material or waste
    • B26D7/1827—Means for removing cut-out material or waste by tearing

Definitions

  • the invention relates to a cutting system for cutting blanks from tape material, for example prepregs covered with film on one or both sides, with a cutting table which can be subjected to vacuum and which has a conveyor belt forming the working surface, a cutting unit which can be moved over the working surface and which is preferably adjustable to a specific cutting depth Has cutting tool, as well as a material dispenser in the conveying direction before and a material storage in the conveying direction after the cutting table.
  • a cutting system is known from DE-A-3 341 651.
  • prepregs are understood to mean pre-impregnated fiber works which are impregnated with a predetermined proportion of reactive resin and which can be cured under heat without further additions.
  • the desired blanks are then cut out from this starting strip material, which is pre-fabricated in a roll-up form with a cover film on one or both sides, on a suitable cutting system, according to an outline matched to the actual end product, the individual blanks forming a so-called nesting pattern to minimize the waste should.
  • the cutting systems themselves have a cutting table with an ar that can be pressurized beits Structure for holding the cutting material and a cutting unit with a cutting knife adjustable to a certain depth of cut, in particular an ultrasonic knife, which is a cutting knife vibrating with ultrasonic frequency, for automated cutting of the blanks on (US-A 4 028 167 and 4 514 246, DE-A 33 41 651), it also being known to use a so-called conveyor table as the cutting table, which has a conveyor belt guided over the suction boxes of the table (US Pat. No. 4,542,672).
  • This conveyor belt which can be driven step by step, results in sections of the work surface and at the same time serves for material supply and removal, the material being drawn off from a material dispenser upstream of the cutting table onto the conveyor belt and being introduced into a material storage area from the conveyor belt.
  • the strip material is cut to length on the feed side in the corresponding work area and each section is machined for itself, so that the cutting process has to be coordinated with a limited nest length, which inevitably brings with it larger amounts of waste due to the restricted freedom in nest design.
  • the invention is therefore based on the object to eliminate these deficiencies and to provide a cutting system of the type described, which allows a particularly efficient operation in a relatively simple manner, ensures the processing of nests of any length and, above all, also enables automatic waste disposal.
  • the cutting table accommodates a waste collector, which consists of a longitudinal slide that can be pushed back and forth along the conveyor belt for collecting the waste, with a deflection roller that can be placed on the belt material with its axis transverse to the direction of conveyance, and one that rotates above the deflection roller. and drivably mounted storage roll, to which storage roll the waste parts connected in the longitudinal direction of the conveyor belt are fastened with their start separated from the belt material and pulled around the deflection roll.
  • a waste collector which consists of a longitudinal slide that can be pushed back and forth along the conveyor belt for collecting the waste
  • a deflection roller that can be placed on the belt material with its axis transverse to the direction of conveyance, and one that rotates above the deflection roller.
  • storage roll to which storage roll the waste parts connected in the longitudinal direction of the conveyor belt are fastened with their start separated from the belt material and pulled around the deflection roll.
  • the conveyor belt which can be controlled depending on the distance traveled, allows the desired increase in the Work surface and thereby an at least step-by-step processing of any nest lengths, with the waste being removed directly from the waste collector and separated from the blanks after each cutting operation directly at the cutting table.
  • the newly brought into the working area band material is processed with the cutting unit and then or in an overlapping manner freed of waste, for which purpose the longitudinal slide of the waste collector is moved against the conveying direction and thereby the waste is pulled over the deflection roller attached to the belt material and opened the storage roll is wound up.
  • the conveyor belt then only contains the belt material that has been freed of waste, that is, depending on the type of belt alone, the blanks or a cutting to the depth of a film-covered band, the lower cover film and the blanks adhering to it, and a subsequent conveying step brings this waste-free band piece into the material storage adjoining the cutting table.
  • the longitudinal slide returns synchronously to the starting position and after this conveying step is complete, the system is ready for a new cutting and waste separation process, whereby there is no restriction to prepreg belts, but any band material can be processed.
  • a cutting device is provided between the waste collector and the material deposit, the cutting device can be cut to length with the film-covered tape material, the cuts of which are connected after the waste separation via the uncut film, after each individual conveying step or only after several conveying steps actuated and the finished strip material is cut off for removal, which can then be removed from the material storage in the desired length. Since the waste is drawn off before the pieces of tape carrying the blanks are cut to length, the waste remains as a whole and can be removed without interruption over the entire length of the tape material, which eliminates frequent manual clamping of the waste in the storage roll and rationalizes the separation process. Therefore, nests of different lengths can be processed step by step and, as desired, blanks of individual nests or several connected nests can be cut to length and rolled up, the vacuum application of the cutting table being interrupted during the individual conveying steps for functional and economic reasons.
  • the material deposit includes a roll-up device for the strip material
  • the roll-up device has a collecting basket, the wall of which forms a deflecting path for the strip material that curves upward and backward in relation to the conveying direction in relation to the feed area, it occurs when the strip material is deposited by pushing it in into the collecting basket independently for rolling up the tape loosely without a winding core or the like and winding the cut-to-length pieces of tape no longer requires manual intervention. Without delaying the workflow and without affecting the rest of the working process, these finished rolls of tape can then be removed from the material deposit and further processed or treated in any way.
  • the deflection path of the collecting basket has to ensure that the band material inserted into the basket is turned over and thus the core-free rolling up of the band, so that the path is to be adapted to the respective band material in its course and special configuration.
  • a wall part moving in the direction of deflection and roll-up such as an arcuate belt conveyor or additional air jet devices and the like.
  • the wall consists of rods, pipes or the like which are mounted transversely to the conveying direction and are rotatably and drivably mounted, each of which is connected in pairs by belt loops . In a structurally simple manner, this results in a cage wall which further conveys the tape and which ensures that the tape is securely wrapped in and folded over and rolled up.
  • the deflection roller can be raised and lowered on the longitudinal slide and a cutting device is provided in the attachment area of the deflection roller, whereby on the one hand lifting the deflection roller unhindered the insertion of a new band or the like, the waste collector on different Band strengths can be set u. Like. Or the waste material can be cut to length if necessary.
  • a receptacle for an additional material dispenser roll is arranged in the storage-side end region of the cutting table above the conveyor belt with a belt that has a carrier film facing away from the conveyor belt and that can be moved around the raised deflection roller and can be clamped with the carrier film on the storage roller a first step by moving the waste collector away from the material dispenser roll and then in a second step after lowering the deflecting roller and cutting the band down to the carrier film with the cutting device by moving the waste collector back onto the already existing band material, the carrier film being simultaneously possible can be detached from the belt and wound up on the storage roll, the waste collector can not only be used to separate the waste from the belt material lying on the conveyor belt, but also for opening one or more layers of such tape material to produce two or more layered cut materials.
  • a material dispenser roll only needs to be inserted into the receptacle and the additional belt from the dispenser roll but the deflection roll of the waste collector to its storage roll and to be fixed there.
  • the longitudinal slide moves against the conveying direction with the deflection roller raised and pulls the belt with the carrier film from the top of the dispenser roll, then the deflection roller is placed on the existing belt material on the conveyor belt, cut the new belt without cutting through the carrier film in the attachment area and at Retraction of the longitudinal slide, the new tape pulled from the dispenser roll is rolled up through the deflection roll onto the existing tape material at the table, while at the same time the carrier film is wound onto the storage roll. In the starting position, the tape is cut again and, due to the carrier film remaining uncut here, you can start again with the deflection roller raised.
  • a cutting system 5 which has a cutting table 6 which can be pressurized and a conveyor belt 8 which is guided over the suction boxes 7 of the cutting table 6 and forms the working surface, and a cutting unit 9 which can be moved over the working surface.
  • This cutting unit 9 has a cutting knife 10 which is guided according to the cutting feed and allows cutting to depth, that is to say cutting with a precisely adjustable depth of cut.
  • the cutting unit 9 can be equipped with an additional feed device 11, a gripper device 12 and the like. The like. Additional and auxiliary devices to facilitate the cutting and feeding work equipped.
  • the material transport at the cutting table 6 takes place via the conveyor belt 8, which runs over deflection rollers 13 from a unwinding drum 14 in the inlet end area of the table 6 to a winding drum 15 in the outlet end area of the cutting table and is moved step by step by a drive, not shown, depending on the conveyed path can.
  • a drive not shown, depending on the conveyed path can.
  • the strip material 1 to be processed comes to the work surface via a material dispenser 16 which is upstream of the cutting table 6 in the conveying direction of the conveyor belt 8 and which receives one or more dispenser rolls 17.
  • the strip material 1 to be processed is drawn off from the respective dispenser roll 17 held in a corresponding delivery position and placed on the conveyor belt 8, which then unwinds the material from the dispenser roll 17 on the feed side in accordance with the processing sequence and conveys it on the discharge side into a material tray 18 arranged downstream of the cutting table 6 .
  • a cutting device 19 In the material depositing end of the table 6 there is also a cutting device 19 so that a tape, the cuts of which are still connected after processing, is cut to length in desired pieces and the tape pieces come individually into the material depositing device 18.
  • the material tray 18 is equipped with a roll-up device 20 in order to be able to roll up the finished pieces of tape and remove them individually from the cutting system 5.
  • This rolling device 20 has a collecting basket 21 on, the wall of which consists of bars 22 lying transversely to the conveying direction and these strap loops 23 connecting them in pairs.
  • the bars 22 are rotatable in the side walls 24 and can be driven via a chain drive 25, which is only indicated, so that the collecting basket 21 forms a deflecting path for the inserted strip material 1 which moves in the conveying direction, curves upwards and backwards.
  • the strip material can be loosely rolled up by this deflection path without a winding core and can be removed from the material storage 20 immediately after being cut to length.
  • a waste collector 26 is provided on the cutting table 6, which consists of a longitudinal slide 27 that can be pushed back and forth along the conveyor belt 8, with a deflection roller 28 that is transverse to the direction of conveyance, adjustable in height and attachable to the belt material, and one above the deflection roller 28 rotatably and drivably mounted storage roller 29. If there is now the band material on the conveyor belt 8, after processing by the processing unit or the cutting unit 9, the waste can be automatically separated from the blanks by, as indicated in FIG. 2, the waste being drawn off via the deflection roller 28 and onto the Storage roll 29 is wound up while the longitudinal slide 27 of the waste collector is moved against the conveying direction.
  • a cutting device 30 is arranged on the longitudinal slide 27 of the waste collector 26 in the region of the deflecting roller 28 and a receptacle 31 for an additional material dispenser roller 32 is also provided in the storage-side end region of the cutting table 6, the waste collector 26 can be used except for separation Use the waste from the tape material to stack two or more tapes. All that is required is for the new belt 33, which is provided with a carrier film, to be pulled off the material dispenser roll 32 and to be guided and clamped via the deflecting roll 28 to the storage drum 29, and the new belt 33 is placed on the belt 1 lying on the conveyor belt 8 by Movement of the longitudinal slide 27 in cooperation with the deflection roller 28.
  • the deflection roller 28 When the deflection roller 28 is raised and the longitudinal slide 27 moves back, the new belt 33 is pulled off in the desired length, then the deflection roller 28 is lowered and presses the new belt 33 onto the belt 1, so that after cutting the tape 33 with the cutting device 30, in which, however, the overlying carrier film remains uncut and when the longitudinal slide 27 is retracted, the new band 33 is rolled up onto the band 1 via the deflecting roller 28, and at the same time the carrier film is pulled off and wound onto the storage drum 29.
  • multilayer tapes can be created and then blanks can be cut out of multilayer prepregs or the like, and by correspondingly lining up the individual sections adapted to the work surfaces it is possible to manufacture such multilayer tapes for as long as desired.
  • the cutting system 5 is characterized by its efficient mode of operation and in particular by the possibility of performing an automatic waste separation directly on the cutting table after the respective processing and not only gradually processing pieces of any length, but also dividing the finished, waste-free pieces of any length to put down and take off rolled up.

Description

Die Erfindung bezieht sich auf eine Schneidanlage zum Ausschneiden von Zuschnitten aus Bandmaterial, beispielsweise ein- oder beidseitig folienbedeckte Prepregs, mit einem unterdruckbeaufschlagbaren Schneidtisch, der ein die Arbeitsfläche bildendes Förderband aufweist, einem über die Arbeitsfläche verfahrbaren Schneidaggregat, das vorzugsweise ein auf eine bestimmte Schnittiefe einstellbares Schneidwerkzeug besitzt, sowie einem Materialspender in Förderrichtung vor und einer Materialablage in Förderrichtung nach dem Schneidtisch. Eine derartige Schneidanlage ist aus der DE-A-3 341 651 bekannt.The invention relates to a cutting system for cutting blanks from tape material, for example prepregs covered with film on one or both sides, with a cutting table which can be subjected to vacuum and which has a conveyor belt forming the working surface, a cutting unit which can be moved over the working surface and which is preferably adjustable to a specific cutting depth Has cutting tool, as well as a material dispenser in the conveying direction before and a material storage in the conveying direction after the cutting table. Such a cutting system is known from DE-A-3 341 651.

Unter Prepregs wird auf dem Gebiet der faserverstärkten Kunststoffe vorimprägniertes Faserwerk verstanden, das mit einem vorbestimmten Anteil Reaktionsharzmasse imprägniert und ohne weitere Zusätze unter Wärme härtbar ist. Aus diesem in aufrollbarer Bandform mit ein- oder beidseitiger Deckfolie vorgefertigten Ausgangsbandmaterial werden dann auf einer geeigneten Schneidanlage die gewünschten Zuschnitte nach einer auf das eigentliche Endprodukt abgestimmten Umrißlinie ausgeschnitten, wobei zur Minimierung des Verschnittes die einzelnen Zuschnitte ein möglichst eng aneinandergerücktes Schnittmuster, ein sogenanntes Nest bilden sollen. Die Schneidanlagen selbst weisen einen Schneidtisch mit unterdruckbeaufschlagbarer Ar beitsfläche zum Festhalten des Schnittmaterials und ein Schneidaggregat mit einem auf eine bestimmte Schnittiefe einstellbaren Schneidmesser, insbesondere ein Ultraschallmesser, das ist ein mit Ultraschallfrequenz schwingendes Schneidmesser, zum automatisierten Ausschneiden der Zuschnitte auf (US-A 4 028 167 und 4 514 246, DE-A 33 41 651), wobei es auch bereits bekannt ist, als Schneidtisch sogenannte Conveyortisch einzusetzen, die ein über die Saugkästen des Tisches geführtes Förderband besitzen (US-A-4 542 672). Dieses schrittweise antreibbare Förderband ergibt abschnittsweise jeweils die Arbeitsfläche und dient gleichzeitig zur Materialzu- und abfuhr, wobei das Material von einem zufuhrseitig dem Schneidtisch vorgelagerten Materialspender auf das Förderband abgezogen und abfuhrseitig vom Förderband in eine Materialablage eingebracht wird. Bei diesen bekannten Schneidanlagen wird das Bandmaterial zufuhrseitig in der jeweiligen Arbeitsfläche entsprechenden Abschnitten abgelängt und jeder Abschnitt für sich bearbeitet, so daß der Schneidvorgang auf eine begrenzte Nestlänge abgestimmt sein muß, was zwangsweise wegen der eingeengten Freiheit in der Nestauslegung größere Abfallanteile mit sich bringt. Insbesondere ist aber ein Trennen von Zuschnitten und Abfall unmittelbar nach dem Schneidvorgang am Tisch außer durch zeitraubende Handarbeit nicht möglich und die Zuschnitte werden samt Abfall in die Materialablage gefördert.In the field of fiber-reinforced plastics, prepregs are understood to mean pre-impregnated fiber works which are impregnated with a predetermined proportion of reactive resin and which can be cured under heat without further additions. The desired blanks are then cut out from this starting strip material, which is pre-fabricated in a roll-up form with a cover film on one or both sides, on a suitable cutting system, according to an outline matched to the actual end product, the individual blanks forming a so-called nesting pattern to minimize the waste should. The cutting systems themselves have a cutting table with an ar that can be pressurized beitsfläche for holding the cutting material and a cutting unit with a cutting knife adjustable to a certain depth of cut, in particular an ultrasonic knife, which is a cutting knife vibrating with ultrasonic frequency, for automated cutting of the blanks on (US-A 4 028 167 and 4 514 246, DE-A 33 41 651), it also being known to use a so-called conveyor table as the cutting table, which has a conveyor belt guided over the suction boxes of the table (US Pat. No. 4,542,672). This conveyor belt, which can be driven step by step, results in sections of the work surface and at the same time serves for material supply and removal, the material being drawn off from a material dispenser upstream of the cutting table onto the conveyor belt and being introduced into a material storage area from the conveyor belt. In these known cutting systems, the strip material is cut to length on the feed side in the corresponding work area and each section is machined for itself, so that the cutting process has to be coordinated with a limited nest length, which inevitably brings with it larger amounts of waste due to the restricted freedom in nest design. In particular, it is not possible to separate blanks and waste immediately after the cutting process at the table, apart from time-consuming manual work, and the blanks and waste are conveyed into the material storage.

Es gibt auch schon eine Fertigungsanlage zum Herstellen von Klebebuchstaben od. dgl. (GB-B-2 040 778), bei der ein Verbundmaterial für die Buchstaben und eine zugehörende Abdeckung auf einem schrittweise vorwärtsbewegten Trägerband aufgebracht und mit diesem fortlaufend einer Stanzstation zum Stanzen von die Buchstaben aufweisenden Plättchen zuführbar ist. Die Ausstanzungen werden anschließend in einer Abnahmestation durch Preßluftbeaufschlagung weggeblasen und in einer Saugbox gesammelt, worauf die gestanzten Buchstabenplättchen in einer nachgeordneten Abgabestation durch Umlenkung des Trägerbandes auf ein Förderband zum Abtransport abgelegt werden. Es kommt hier zwar zu einer selbsttätigen Abfalltrennung, doch eignet sich diese Art der Abfallabnahme und Zuschnittsabgabe lediglich für einzeln hintereinandergereihte Zuschnitte einfacher Form und keinesfalls für kompliziertere Schnittmuster oder eine Anwendung bei gattungsgemäßen Schneidanlagen.There is also a manufacturing plant for the production of adhesive letters or the like (GB-B-2 040 778), in which a composite material for the letters and an associated cover is applied to a step-by-step carrier tape and is continuously used with a punching station for punching the letters with letters is feedable. The punched-out areas are then blown away in a removal station by pressurized air and collected in a suction box, whereupon the die-cut letter plates are placed in a downstream delivery station by deflecting the carrier belt onto a conveyor belt for removal. There is an automatic waste separation here, but this type of waste collection and cutting delivery is only suitable for single, single-row cuts of simple form and never for more complicated cutting patterns or for use in generic cutting systems.

Der Erfindung liegt daher die Aufgabe zugrunde, diese Mängel zu beseitigen und eine Schneidanlage der eingangs geschilderten Art zu schaffen, die auf verhältnismäßig einfache Weise einen besonders rationellen Betrieb erlaubt, das Bearbeiten beliebig langer Nester gewährleistet und vor allem auch eine automatische Abfallbeseitigung ermöglicht.The invention is therefore based on the object to eliminate these deficiencies and to provide a cutting system of the type described, which allows a particularly efficient operation in a relatively simple manner, ensures the processing of nests of any length and, above all, also enables automatic waste disposal.

Die Erfindung löst diese Aufgabe dadurch, daß der Schneidtisch einen Abfallsammler aufnimmt, der aus einem dem Förderband zum Sammeln des Abfalls entlang hin- und herverschiebbaren Längsschlitten mit einer mit ihrer Achse quer zur Förderrichtung liegenden, am Bandmaterial aufsetzbaren Umlenkrolle und einer oberhalb der Umlenkrolle dreh- und antreibbar gelagerten Speicherrolle besteht, an welcher Speicherrolle die in Längsrichtung des Förderbandes zusammenhängend verbundenen Abfallteile mit ihrem vom Bandmaterial getrennten und um die Umlenkrolle gezogenen Anfang aufwickelbar befestigt sind. Das in Abhängigkeit vom zurückgelegten Förderweg ansteuerbare Förderband erlaubt eine wunschgemäße Vergrößerung der Arbeitsfläche und dadurch eine zumindest schrittweise Bearbeitung beliebiger Nestlängen, wobei nach jedem Schneidvorgang unmittelbar am Schneidtisch auch der Abfall über den Abfallsammler abgenommen und von den Zuschnitten getrennt wird. Nach jedem Förderschnitt des Förderbandes wird das dadurch neu in den Arbeitsflächenbereich gebrachte Bandmaterial mit dem Schneidaggregat bearbeitet und anschließend oder in überlappender Arbeitsweise vom Abfall befreit, wozu der Längsschlitten des Abfallsammlers gegen die Förderrichtung verschoben und dabei der Abfall über die am Bandmaterial aufgesetzte Umlenkrolle gezogen und auf die Speicherrolle aufgewickelt wird. Selbstverständlich setzt das Abziehen des Abfalls voraus, daß dieser auch nach dem Schnittvorgang über einen gewissen Zusammenhalt verfügt und die Zuschnitte auf der Arbeitsfläche zurückgehalten werden, was durch die zwischen den Zuschnitten verbleibenden, gitterförmig zusammenhängenden Materialstege einerseits und die bleibende Unterdruckbeaufschlagung der Arbeitsfläche anderereits erreicht wird. Bei Beginn des Abfallabzuges braucht daher lediglich der Anfangsbereich des Abfalles händisch von den Zuschnitten abgehoben und über die Umlenkrolle auf die Speicherrolle gewickelt zu werden und die weitere Abfalltrennung ergibt sich fortlaufend durch einen an die Längsschlittenbewegung angepaßten Drehantrieb der Speicherrolle, so daß es während der Längsschlittenbewegung automatisch zu einem Abheben und Aufwickeln des Abfalles kommt. Auf dem Förderband liegt dann nur mehr das vom Abfall befreite Bandmaterial, also je nach Art des Bandes allein die Zuschnitte oder bei einem Schneiden auf Tiefe eines folienbedeckten Bandes die untere Deckfolie und die daraufklebenden Zuschnitte, und ein anschließender Förderschritt bringt dieses abfallfreie Bandstück in die an den Schneidtisch anschließende Materialablage. Während des Förderschrittes fährt der Längsschlitten synchron in die Ausgangsposititon zurück und nach Beendigung dieses Förderschrittes ist die Anlage für einen neuerlichen Schnitt- und Abfalltrennvorgang bereit, wobei es keine Beschränkung auf Prepregs-Bänder gibt, sondern beliebiges Bandmaterial bearbeitet werden kann.The invention solves this problem in that the cutting table accommodates a waste collector, which consists of a longitudinal slide that can be pushed back and forth along the conveyor belt for collecting the waste, with a deflection roller that can be placed on the belt material with its axis transverse to the direction of conveyance, and one that rotates above the deflection roller. and drivably mounted storage roll, to which storage roll the waste parts connected in the longitudinal direction of the conveyor belt are fastened with their start separated from the belt material and pulled around the deflection roll. The conveyor belt, which can be controlled depending on the distance traveled, allows the desired increase in the Work surface and thereby an at least step-by-step processing of any nest lengths, with the waste being removed directly from the waste collector and separated from the blanks after each cutting operation directly at the cutting table. After each conveyor cut of the conveyor belt, the newly brought into the working area band material is processed with the cutting unit and then or in an overlapping manner freed of waste, for which purpose the longitudinal slide of the waste collector is moved against the conveying direction and thereby the waste is pulled over the deflection roller attached to the belt material and opened the storage roll is wound up. Of course, removing the waste requires that it remains cohesive even after the cutting process and that the blanks are held back on the work surface, which is achieved on the one hand by the lattice-like material webs remaining between the blanks and on the other hand by the permanent pressurization of the work surface. At the beginning of the waste removal, therefore, only the initial area of the waste needs to be manually lifted from the blanks and wound onto the storage roller via the deflection roller, and the further waste separation results continuously from a rotary drive of the storage roller adapted to the longitudinal slide movement, so that it automatically during the longitudinal slide movement the waste is lifted off and wound up. The conveyor belt then only contains the belt material that has been freed of waste, that is, depending on the type of belt alone, the blanks or a cutting to the depth of a film-covered band, the lower cover film and the blanks adhering to it, and a subsequent conveying step brings this waste-free band piece into the material storage adjoining the cutting table. During the conveying step, the longitudinal slide returns synchronously to the starting position and after this conveying step is complete, the system is ready for a new cutting and waste separation process, whereby there is no restriction to prepreg belts, but any band material can be processed.

Ist nach einer besonders vorteilhaften Weiterbildung der Erfindung zwischen Abfallsammler und Materialablage eine Schneideinrichtung zum Ablängen des Bandmaterials vorgesehen, kann wunschgemäß bei folienbedecktem Bandmaterial, dessen Zuschnitte ja auch nach der Abfalltrennung über die ungeschnittene Folie zusammenhängen, nach jedem einzelnen Förderschritt oder erst nach mehreren Förderschritten die Schneideinrichtung betätigt und das fertige Bandmaterial zur Abnahme abgeschnitten werden, das dann in gewünschter Stücklänge der Materialablage zu entnehmen ist. Da der Abfall vor dem Ablängen der die Zuschnitte tragenden Bandstücke abgezogen wird, bleibt der Abfall im ganzen und läßt sich ohne Unterbrechung über die ganze Bandmateriallänge abnehmen, was häufigeres händisches Einspannen des Abfalles in die Speicherrolle erübrigt und den Trennvorgang rationalisiert. Schrittweise lassen sich daher Nester unterschiedlichster Länge bearbeiten und wunschgemäß können auch Zuschnitte einzelner Nester oder mehrerer zusammenhängender Nester abgelängt und aufgerollt werden, wobei die Unterdruckbeaufschlagung des Schneidtisches während der einzelnen Förderschritte aus funktionstechnischen und wirtschaftlichen Gründen unterbrochen wird.If, according to a particularly advantageous further development of the invention, a cutting device is provided between the waste collector and the material deposit, the cutting device can be cut to length with the film-covered tape material, the cuts of which are connected after the waste separation via the uncut film, after each individual conveying step or only after several conveying steps actuated and the finished strip material is cut off for removal, which can then be removed from the material storage in the desired length. Since the waste is drawn off before the pieces of tape carrying the blanks are cut to length, the waste remains as a whole and can be removed without interruption over the entire length of the tape material, which eliminates frequent manual clamping of the waste in the storage roll and rationalizes the separation process. Therefore, nests of different lengths can be processed step by step and, as desired, blanks of individual nests or several connected nests can be cut to length and rolled up, the vacuum application of the cutting table being interrupted during the individual conveying steps for functional and economic reasons.

Umfaßt die Materialablage erfindungsgemäß eine Aufrolleinrichtung für das Bandmaterial, welche Aufrolleinrichtung einen Auffangkorb aufweist, dessen Wandung eine sich im Anschluß an den Eingangsbereich in bezug auf die Förderrichtung aufwärts und rückwärts krümmende Umlenkbahn für das Bandmaterial bildet, kommt es bei der Ablage des Bandmaterials durch das Einschieben in den Auffangkorb selbständig zu einem losen Aufrollen des Bandes ohne einen Wickelkern od. dgl. und das Aufwickeln der abgelängten Bandstücke bedarf keines händischen Zutuns mehr. Ohne eine Verzögerung des Arbeitsablaufes und ohne Beeinträchtigung des übrigen Arbeitsverfahrens können dann diese fertigen Bandrollen aus der Materialablage entnommen und auf beliebige Weise weiterverarbeitet oder -behandelt werden.If, according to the invention, the material deposit includes a roll-up device for the strip material, the roll-up device has a collecting basket, the wall of which forms a deflecting path for the strip material that curves upward and backward in relation to the conveying direction in relation to the feed area, it occurs when the strip material is deposited by pushing it in into the collecting basket independently for rolling up the tape loosely without a winding core or the like and winding the cut-to-length pieces of tape no longer requires manual intervention. Without delaying the workflow and without affecting the rest of the working process, these finished rolls of tape can then be removed from the material deposit and further processed or treated in any way.

Die Umlenkbahn des Auffangkorbes hat für ein Umschlagen des in den Korb eingeschobenen Bandmaterials und damit das kernlose Aufrollen des Bandes zu sorgen, so daß die Bahn in Verlauf und spezieller Ausgestaltung an das jeweilige Bandmaterial anzupassen ist. Ein sich in Umlenk- und Aufrollrichtung mitbewegender Wandungsteil, wie ein bogenförmig geführter Bandförderer oder zusätzliche Luftstrahleinrichtungen u. dgl., können das Aufrollen unterstützen, wobei es besonders vorteilhaft ist, wenn nach einer Weiterbildung der Erfindung die Wandung aus quer zur Förderrichtung liegenden, dreh- und antreibbar gelagerten Stäben, Rohren od. dgl. besteht, die jeweils paarweise durch Riemenschlaufen miteinander verbunden sind. Auf konstruktiv einfache Weise ergibt sich so eine das Band weiterfördernde Korbwandung, die ein sicheres Ein- und Umschlagen und Aufrollen des Bandes gewährleistet.The deflection path of the collecting basket has to ensure that the band material inserted into the basket is turned over and thus the core-free rolling up of the band, so that the path is to be adapted to the respective band material in its course and special configuration. A wall part moving in the direction of deflection and roll-up, such as an arcuate belt conveyor or additional air jet devices and the like. Like., Can support the rolling up, it being particularly advantageous if, according to a development of the invention, the wall consists of rods, pipes or the like which are mounted transversely to the conveying direction and are rotatably and drivably mounted, each of which is connected in pairs by belt loops . In a structurally simple manner, this results in a cage wall which further conveys the tape and which ensures that the tape is securely wrapped in and folded over and rolled up.

Um die Handhabung des Abfallsammlers zu erleichtern, ist erfindungsgemäß die Umlenkrolle am Längsschlitten heb- und senkbar geführt und im Aufsetzbereich der Umlenkrolle eine Schneideinrichtung vorgesehen, wodurch einerseits ein Anheben der Umlenkrolle das Einlegen eines neuen Bandes od. dgl. unbehindert läßt, der Abfallsammler auf unterschiedliche Bandstärken eingestellt werden kann u. dgl. oder anderseits das Abfallmaterial bedarfsweise ablängbar ist.In order to facilitate the handling of the waste collector, according to the invention the deflection roller can be raised and lowered on the longitudinal slide and a cutting device is provided in the attachment area of the deflection roller, whereby on the one hand lifting the deflection roller unhindered the insertion of a new band or the like, the waste collector on different Band strengths can be set u. Like. Or the waste material can be cut to length if necessary.

Wird außerdem nach einer besonders vorteilhaften Ausgestaltung der Erfindung im ablageseitigen Endbereich des Schneidtisches oberhalb des Förderbandes eine Aufnahme für eine zusätzliche Materialspenderrolle mit einem eine vom Förderband abgewandte Trägerfolie aufweisenden Band angeordnet, welches um die angehobene Umlenkrolle fahrbare und mit der Trägerfolie an der Speicherrolle einspannbare Band in einem ersten Schritt durch Fortbewegen des Abfallsammlers von der Materialspenderrolle abziehbar und dann in einem zweiten Schritt nach Absenken der Umlenkrolle und Durchschneiden des Bandes bis auf die Trägerfolie mit der Schneideinrichtung durch ein Zurückbewegen des Abfallsammler auf das bereits vorhandene Bandmaterial zusätzlich aufbringbar ist, wobei gleichzeitig die Trägerfolie vom Band .lösbar und auf der Speicherrolle aufwickelbar ist, läßt sich der Abfallsammler nicht nur zum,Trennen des Abfalles vom am Förderband liegenden Bandmaterial nutzen, sondern auch zum Aufbringen einer oder mehrerer Lagen solchen Bandmaterials, um zwei- oder mehrschichtige Schnittmaterialien herzustellen. Dazu braucht dann lediglich in die Aufnahme eine Materialspenderrolle eingesetzt und das Zusatzband von der Spenderrolle aber die Umlenkrolle des Abfallsammlers zu dessen Speicherrolle geführt und dort fixiert zu werden. Nun fährt der Längsschlitten bei angehobener Umlenkrolle gegen die Förderrichtung vor und zieht das Band mit obenliegender Trägerfolie von der Spenderrolle ab, dann wird die Umlenkrolle auf das vorhandene Bandmaterial am Förderband aufgesetzt, über die Trenneinrichtung im Aufsetzbereich das neue Band ohne Durchschneiden der Trägerfolie durchschnitten und beim Zurückfahren des Längsschlittens das von der Spenderrolle abgezogene neue Band durch die Umlenkrolle auf das vorhandene Bandmaterial am Tisch aufgerollt, während gleichzeitig die Trägerfolie auf die Speicherrolle gewickelt wird. In der Ausgangsstellung wird das Band wieder geschnitten und wegen der auch hier ungeschnitten bleibenden Trägerfolie kann bei angehobener Umlenkrolle von vorne begonnen werden.In addition, according to a particularly advantageous embodiment of the invention, a receptacle for an additional material dispenser roll is arranged in the storage-side end region of the cutting table above the conveyor belt with a belt that has a carrier film facing away from the conveyor belt and that can be moved around the raised deflection roller and can be clamped with the carrier film on the storage roller a first step by moving the waste collector away from the material dispenser roll and then in a second step after lowering the deflecting roller and cutting the band down to the carrier film with the cutting device by moving the waste collector back onto the already existing band material, the carrier film being simultaneously possible can be detached from the belt and wound up on the storage roll, the waste collector can not only be used to separate the waste from the belt material lying on the conveyor belt, but also for opening one or more layers of such tape material to produce two or more layered cut materials. To do this, a material dispenser roll only needs to be inserted into the receptacle and the additional belt from the dispenser roll but the deflection roll of the waste collector to its storage roll and to be fixed there. Now the longitudinal slide moves against the conveying direction with the deflection roller raised and pulls the belt with the carrier film from the top of the dispenser roll, then the deflection roller is placed on the existing belt material on the conveyor belt, cut the new belt without cutting through the carrier film in the attachment area and at Retraction of the longitudinal slide, the new tape pulled from the dispenser roll is rolled up through the deflection roll onto the existing tape material at the table, while at the same time the carrier film is wound onto the storage roll. In the starting position, the tape is cut again and, due to the carrier film remaining uncut here, you can start again with the deflection roller raised.

So läßt sich schrittweise mehrlagiges Bandmaterial für das Ausschneiden von Zuschnitten herstellen, das dann auf gleiche Weise wie das einlagige Bandmaterial bearbeitbar ist.This allows step-by-step production of multi-layer tape material for cutting blanks, which can then be processed in the same way as the single-layer tape material.

In der Zeichnung ist der Erfindungsgegenstand beispielsweise rein schematisch veranschaulicht, und zwar zeigen

  • Fig. 1 ein auf einer erfindungsgemäßen Schneidanlage zu bearbeitendes Bandmaterial im teilgeschnittenen Schaubild,
  • Fig. 2 eine erfindungsgemäße Schneidanlage in teilgeschnittener Seitenansicht,
  • Fig. 3 den materialablageseitigen Teil einer etwas abgeänderten Schneidanlage ebenfalls in teilgeschnittener Seitenansicht und
  • Fig. 4 einen Teil der Materialablage in Stirnansicht.
In the drawing, the subject matter of the invention is illustrated purely schematically, for example, and shows
  • 1 is a strip material to be processed on a cutting system according to the invention in the partially cut diagram,
  • 2 shows a cutting system according to the invention in a partially sectioned side view,
  • Fig. 3 shows the part of the material storage side of a slightly modified cutting system also in a partially sectioned side view and
  • Fig. 4 shows a part of the material storage in front view.

Um aus Bandmaterial 1, beispielsweise Prepregs, das unter- und oberseitig mit einer Deckfolie 2 abgedeckt sein kann, nach einem bestimmten Schnittmuster auf rationelle Weise einzelne Zuschnitte 3 auszuschneiden und dann die zwischen den Zuschnitten 3 verbleibenden, gitterförmig zusammenhängenden Materialstege 4 als Abfall vom übrigen Band abzuziehen, gibt es eine Schneidanlage 5, die einen unterdruckbeaufschlagbaren Schneidtisch 6 und ein über die Saugkästen 7 des Schneidtisches 6 geführtes, die Arbeitsfläche bildendes Förderband 8 sowie ein über die Arbeitsfläche verfahrbares Schneidaggregat 9 aufweist. Dieses Schneidaggregat 9 besitzt ein Schneidmesser 10, das dem Schneidvorschub entsprechend geführt wird und ein Schneiden auf Tiefe, also ein Schneiden mit exakt einstellbarer Schnittiefe erlaubt. Wie in Fig. 2 angedeutet, kann dabei das Schneidaggregat 9 mit einer zusätzlichen Vorschubeinrichtung 11, einer Greifereinrichtung 12 u. dgl. Zusatz- und Hilfseinrichtungen zur Erleichterung der Schneid- und Vorschub arbeiten ausgerüstet sein.In order to rationally cut out individual blanks 3 from strip material 1, for example prepregs, which can be covered on the underside and top side with a cover film 2, and then the lattice-like material webs 4 remaining between the blanks 3 as waste from the rest of the strip there is a cutting system 5, which has a cutting table 6 which can be pressurized and a conveyor belt 8 which is guided over the suction boxes 7 of the cutting table 6 and forms the working surface, and a cutting unit 9 which can be moved over the working surface. This cutting unit 9 has a cutting knife 10 which is guided according to the cutting feed and allows cutting to depth, that is to say cutting with a precisely adjustable depth of cut. As indicated in FIG. 2, the cutting unit 9 can be equipped with an additional feed device 11, a gripper device 12 and the like. The like. Additional and auxiliary devices to facilitate the cutting and feeding work equipped.

Der Materialtransport am Schneidtisch 6 erfolgt über das Förderband 8, das über Umlenkrollen 13 von einer Abwickeltrommel 14 im zulaufseitigen Endbereich des Tisches 6 auf eine Aufwickeltrommel 15 im ablaufseitigen Endbereich des Schneidtisches läuft und durch einen nicht weiter dargestellten Antrieb in Abhängigkeit vom zurückgelegten Förderweg schrittweise vorwärtsbewegt werden kann. Ist das Förderband von der Abwickeltrommel vollständig abgezogen, wird rückgespult und das Förderband 8 steht neuerlich in voller Länge zur Verfügung, was den Förderbandverschleiß verringert und auch das Förderbandwechseln zu einem einfachen Austausch der Förderbandrollen macht.The material transport at the cutting table 6 takes place via the conveyor belt 8, which runs over deflection rollers 13 from a unwinding drum 14 in the inlet end area of the table 6 to a winding drum 15 in the outlet end area of the cutting table and is moved step by step by a drive, not shown, depending on the conveyed path can. When the conveyor belt has been completely removed from the unwinding drum, rewinding is carried out and the conveyor belt 8 is again available in its full length, which reduces conveyor belt wear and also makes changing the conveyor belt a simple exchange of the conveyor belt rolls.

Das zu bearbeitende Bandmaterial 1 kommt über einen dem Schneidtisch 6 in Förderrichtung des Förderbandes 8 vorgelagerten Materialspender 16 auf die Arbeitsfläche, der ein oder mehr Materialspenderrollen 17 aufnimmt. Das zu bearbeitende Bandmaterial 1 wird von der jeweils in einer entsprechenden Abgabestellung gehaltenen Spenderrolle 17 abgezogen und auf das Förderband 8 aufgelegt, das dann das Material in Anpassung an den Bearbeitungsablauf zufuhrseitig von der Spenderrolle 17 abwickelt und ablaufseitig in eine dem Schneidtisch 6 nachgeordnete Materialablage 18 fördert. Im materialablageseitigen Ende des Tisches 6 gibt es außerdem eine Schneideinrichtung 19, so daß ein Band, dessen Zuschnitte nach der Bearbeitung noch zusammenhängen in gewünschten Stücken abgelängt wird und die Bandstücke einzeln in die Materialablage 18 kommen.The strip material 1 to be processed comes to the work surface via a material dispenser 16 which is upstream of the cutting table 6 in the conveying direction of the conveyor belt 8 and which receives one or more dispenser rolls 17. The strip material 1 to be processed is drawn off from the respective dispenser roll 17 held in a corresponding delivery position and placed on the conveyor belt 8, which then unwinds the material from the dispenser roll 17 on the feed side in accordance with the processing sequence and conveys it on the discharge side into a material tray 18 arranged downstream of the cutting table 6 . In the material depositing end of the table 6 there is also a cutting device 19 so that a tape, the cuts of which are still connected after processing, is cut to length in desired pieces and the tape pieces come individually into the material depositing device 18.

Die Materialablage 18 ist mit einer Aufrolleinrichtung 20 ausgerüstet, um die fertigen Bandstücke zusammenrollen und einzeln der Schneidanlage 5 entnehmen zu können. Diese Aufrolleinrichtung 20 weist einen Auffangkorb 21 auf, dessen Wandung aus quer zur Förderrichtung liegenden Stäben 22 und diese jeweils paarweise miteinander verbindenden Riemenschlaufen 23 besteht. Die Stäbe 22 sind in Seitenwangen 24 drehbar und über einen nur angedeuteten Kettentrieb 25 antreibbar gelagert, so daß der Auffangkorb 21 eine sich im Fördersinne bewegende,sich aufwärts und rückwärts krümmende Umlenkbahn für das eingeschobene Bandmaterial 1 bildet. Wie in Fig. 2 angedeutet, kann durch diese Umlenkbahn ohne einen Wickelkern das Bandmaterial lose zusammengerollt und nach dem Ablängen sofort der Materialablage 20 entnommen werden.The material tray 18 is equipped with a roll-up device 20 in order to be able to roll up the finished pieces of tape and remove them individually from the cutting system 5. This rolling device 20 has a collecting basket 21 on, the wall of which consists of bars 22 lying transversely to the conveying direction and these strap loops 23 connecting them in pairs. The bars 22 are rotatable in the side walls 24 and can be driven via a chain drive 25, which is only indicated, so that the collecting basket 21 forms a deflecting path for the inserted strip material 1 which moves in the conveying direction, curves upwards and backwards. As indicated in FIG. 2, the strip material can be loosely rolled up by this deflection path without a winding core and can be removed from the material storage 20 immediately after being cut to length.

Zur Trennung des Abfalls vom übrigen Bandmaterial ist am Schneidtisch 6 ein Abfallsammler 26 vorgesehen, der aus einem dem Förderband 8 entlang hin- und herverschiebbaren Längsschlitten 27 mit einer quer zur Förderrichtung liegenden, der Höhe nach verstellbar geführten und am Bandmaterial aufsetzbaren Umlenkrolle 28 sowie einer oberhalb der Umlenkrolle 28 dreh- und antreibbar gelagerten Speicherrolle 29 besteht. Befindet sich nun das Bandmaterial auf dem Förderband 8, kann nach der Bearbeitung durch die Bearbeitungseinheit bzw. das Schneidaggregat 9 der Abfall automatisch von den Zuschnitten getrennt werden, indem, wie in Fig. 2 angedeutet, der Abfall über die Umlenkrolle 28 abgezogen und auf die Speicherrolle 29 aufgewickelt wird, während der Längsschlitten 27 des Abfallsammlers entgegen der Förderrichtung verfahren wird. Lediglich der Beginn der Abfalltrennung bedarf einer händischen Hilfe aufgrund des anfänglichen Einspannens des Abfalls in die Speichertrommel 29, die weitere Abfalltrennung erfolgt ohne händisches Zutun automatisch. Ist der Längsschlitten 27 über die Arbeitsfläche gefahren und der Abfall dieses Bandbereiches abgezogen, bewegen sich Förderband 8 und Längsschlitten 27 synchron in Förderrichtung, wobei einerseits der Abfallsammler 26 wieder in seine Ausgangsposition gelangt, anderseits das vom Abfall befreite Band in der Materialablage 18 zusammengerollt wird, worauf ein neuer Arbeitsschritt durch Bearbeitung des Bandes bzw. Einsatz des Abfallsammlers erfolgen kann und wunschgemäß auch die Schneideinrichtung 19 die fertigen, abfallfreien Bandstücke in vorbestimmter Länge ablängt. Voraussetzung für ein ordnungsgemäßes Abfalltrennen und eine Ablage des abfallfreien Bandes ist selbstverständlich ein verbleibender Zusammenhang der Materialstege 4 u. dgl. des Abfalls einerseits und ein Haften der Zuschnitte 3 auf der Arbeitsfläche oder der durchgehenden Deckfolie 2 anderseits auch nach der Barbeitung, so daß auf ein entsprechendes Schnittmuster, eine Unterdruckbeaufschlagung des Tisches und gegebenenfalls auf eine ungeschnitten zu belassende Deckfolie 2 geachtet werden muß.To separate the waste from the rest of the belt material, a waste collector 26 is provided on the cutting table 6, which consists of a longitudinal slide 27 that can be pushed back and forth along the conveyor belt 8, with a deflection roller 28 that is transverse to the direction of conveyance, adjustable in height and attachable to the belt material, and one above the deflection roller 28 rotatably and drivably mounted storage roller 29. If there is now the band material on the conveyor belt 8, after processing by the processing unit or the cutting unit 9, the waste can be automatically separated from the blanks by, as indicated in FIG. 2, the waste being drawn off via the deflection roller 28 and onto the Storage roll 29 is wound up while the longitudinal slide 27 of the waste collector is moved against the conveying direction. Only the beginning of the waste separation requires manual help due to the initial clamping of the waste in the storage drum 29, the further waste separation takes place automatically without manual intervention. If the longitudinal slide 27 has moved over the work surface and the waste from this belt area has been drawn off, the conveyor belt 8 and the longitudinal slide 27 move synchronously in the conveying direction, with the waste collector 26 returning to its starting position on the one hand arrives, on the other hand, the strip freed of waste is rolled up in the material deposit 18, whereupon a new work step can be carried out by processing the strip or using the waste collector and, if desired, the cutting device 19 also cuts the finished, waste-free strip pieces to a predetermined length. A prerequisite for proper waste separation and storage of the waste-free belt is of course a remaining connection between the material webs 4 and. Like the waste on the one hand and adherence of the blanks 3 on the work surface or the continuous cover sheet 2 on the other hand after processing, so that attention must be paid to a corresponding cutting pattern, a negative pressure on the table and, if necessary, to an uncut cover sheet 2.

Ist, wie in Fig. 3 angedeutet, am Längsschlitten 27 des Abfallsammlers 26 im Bereich der Umlenkrolle 28 eine Schneideinrichtung 30 angeordnet und außerdem im ablageseitigen Endbereich des Schneidtisches 6 eine Aufnahme 31 für eine zusätzliche Materialspenderrolle 32 vorgesehen, läßt sich der Abfallsammler 26 außer zum Trennen des Abfalles vom Bandmaterial auch zum Übereinanderschichten zweier oder mehrerer Bänder verwenden. Dazu braucht lediglich das neue Band 33, das mit einer Trägerfolie versehen ist, von der Materialspenderrolle 32 abgezogen und über die Umlenkrolle 28 zur Speichertrommel 29 geführt und eingespannt zu werden und das Auflegen des neuen Bandes 33 auf das am Förderband 8 liegende Band 1 erfolgt durch Verfahren des Längsschlittens 27 im Zusammenwirken mit der Umlenkrolle 28. Bei angehobener Umlenkrolle 28 und einem Zurückfahren des Längsschlittens 27 wird das neue Band 33 in gewünschter Länge abgezogen, dann wird die Umlenkrolle 28 abgesenkt und drückt das neue Band 33 auf das Band 1 auf, so daß nach einem Abschneiden des Bandes 33 mit der Schneideinrichtung 30, bei dem jedoch die obenliegende Trägerfolie ungeschnitten bleibt und einem Zurückfahren des Längsschlittens 27 das neue Band 33 über die Umlenkrolle 28 auf das Band 1 aufgerollt und gleichzeitig die Trägerfolie abgezogen und auf die Speichertrommel 29 aufgewickelt wird. Durch entsprechendes Wiederholen dieses Vorganges, was natürlich ein neuerliches Durchschneiden des Bandes 33 in der Ausgangsstellung erfordert, können mehrlagige Bänder geschaffen und dann Zuschnitte aus mehrlagigen Prepregs od. dgl. ausgeschnitten werden, und durch ein entsprechendes Aneinanderreihen der einzelnen, an die Arbeitsflächen angepaßten Abschnitte ist es möglich, solche mehrlagigen Bänder beliebig lange herzustellen.If, as indicated in FIG. 3, a cutting device 30 is arranged on the longitudinal slide 27 of the waste collector 26 in the region of the deflecting roller 28 and a receptacle 31 for an additional material dispenser roller 32 is also provided in the storage-side end region of the cutting table 6, the waste collector 26 can be used except for separation Use the waste from the tape material to stack two or more tapes. All that is required is for the new belt 33, which is provided with a carrier film, to be pulled off the material dispenser roll 32 and to be guided and clamped via the deflecting roll 28 to the storage drum 29, and the new belt 33 is placed on the belt 1 lying on the conveyor belt 8 by Movement of the longitudinal slide 27 in cooperation with the deflection roller 28. When the deflection roller 28 is raised and the longitudinal slide 27 moves back, the new belt 33 is pulled off in the desired length, then the deflection roller 28 is lowered and presses the new belt 33 onto the belt 1, so that after cutting the tape 33 with the cutting device 30, in which, however, the overlying carrier film remains uncut and when the longitudinal slide 27 is retracted, the new band 33 is rolled up onto the band 1 via the deflecting roller 28, and at the same time the carrier film is pulled off and wound onto the storage drum 29. By correspondingly repeating this process, which of course requires a new cutting of the tape 33 in the starting position, multilayer tapes can be created and then blanks can be cut out of multilayer prepregs or the like, and by correspondingly lining up the individual sections adapted to the work surfaces it is possible to manufacture such multilayer tapes for as long as desired.

Die erfindungsgemäße Schneidanlage 5 zeichnet sich durch ihre rationelle Arbeitsweise und insbesonders durch die Möglichkeit aus, unmittelbar am Schneidtisch nach der jeweiligen Bearbeitung eine automatische Abfalltrennung vorzunehmen und nicht nur schrittweise beliebig lange Bandstücke zu bearbeiten, sondern auch die fertigen, abfallfreien Bandstücke in beliebiger Länge zu teilen, aufgerollt abzulegen und abzunehmen.The cutting system 5 according to the invention is characterized by its efficient mode of operation and in particular by the possibility of performing an automatic waste separation directly on the cutting table after the respective processing and not only gradually processing pieces of any length, but also dividing the finished, waste-free pieces of any length to put down and take off rolled up.

Claims (6)

1. Cutting apparatus (5) for cutting out blanks from material (1) in band form, for example prepregs covered with film on one or both sides, having a cutting table (6) which can be subjected to vaccum and has a belt conveyor (8) forming the working surface, a cutting unit (9) which can be moved over the working surface and has a cutting tool (10) preferably adjustable to a given cutting depth, and a material dispenser (16) upstream and material delivery means (8) downstream of the cutting table (6), characterised in that the cutting table (6) receives a waste collector (26) comprising a carriage (27) which is movable back and forth along the conveyor (8) to collect the waste and which has a deflecting roller (28) arranged transversely relative to the conveying direction and applicable to the material (1) in band form and a storage roller (29) rotatably and drivably mounted above the deflecting roller (28), the waste elements (4), which are interconnected in the longitudinal direction of the conveyor (8), being windably secured to the storage roller (29) at their beginning, which is separated from the material (1) in band form and is drawn round the deflecting roller (28).
2. Cutting apparatus as claimed in claim 1, characterised in that between the waste collector (26) and the material delivery means (18) there is a cutting device (19) for cutting the material (1) in band form into lengths.
3. Cutting apparatus as claimed in claim 1 or 2, characterised in that the material delivery means (18) comprises a rolling-up device (20) for the material (1) in band form, the device (20) having a collecting cage (21) of which the wall forms for the material (1) a deflection track curving upwards and backswards relative to the conveying direction following the entry zone.
4. Cutting apparatus as claimed in claim 3, characterised in that the wall comprises rotatably and drivably mounted rods (22) transverse relative to the conveying direction and interconnected in pairs by strap loops (23).
5. Cutting apparatus as claimed in claim 1, characterised in that the deflecting roller (28) of the waste collector (26) is guided so as to be raisable and lowerable on the carriage (27), and within the contact range of the deflecting roller (26) a cutting device (30) is provided.
6. Cutting apparatus as claimed in claim 5, characterised in that in the delivery end zone of the cutting table (6) above the belt conveyor (8) there is a mounting (31) for an additional material dispenser roll (32) with a band (33) having a support film facing away from the conveyor, which band (33), which can be guided over the raised deflecting roller (28) and stretched with the support film on the storage roller (29), can in a first step be drawn off by moving the waste collector (26) away from the material dispenser roller (32) and then in a second step, after lowering of the deflecting roller (28) and severing of the band (33) down to the support film by means of the cutting device (30), be additionally applied to the material (1) already present through a return movement of the waste collector (26), and at the same time the support film can be released from the band (33) and wound on to the storage roller (29).
EP90890042A 1989-02-21 1990-02-20 Cutting installation for cutting out blanks from web material Expired - Lifetime EP0384914B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT0038189A AT394515B (en) 1989-02-21 1989-02-21 CUTTING MACHINE FOR CUTTING CUT OUT FROM TAPE MATERIAL
AT381/89 1989-02-21

Publications (2)

Publication Number Publication Date
EP0384914A1 EP0384914A1 (en) 1990-08-29
EP0384914B1 true EP0384914B1 (en) 1992-08-05

Family

ID=3489076

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Application Number Title Priority Date Filing Date
EP90890042A Expired - Lifetime EP0384914B1 (en) 1989-02-21 1990-02-20 Cutting installation for cutting out blanks from web material

Country Status (5)

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US (1) US5080297A (en)
EP (1) EP0384914B1 (en)
AT (1) AT394515B (en)
DE (1) DE59000230D1 (en)
ES (1) ES2034851T3 (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5101747A (en) * 1989-12-19 1992-04-07 Gerber Garment Technology, Inc. Apparatus and method for separating pattern pieces from waste material
US5313957A (en) * 1990-01-05 1994-05-24 Medamicus, Inc. Guide wire mounted pressure transducer
IT1255349B (en) * 1992-07-17 1995-10-31 FEEDING DEVICE OF ROLLED FABRICS FOR CUTTING TABLES FABRIC IN SINGLE LAYERS
US5746388A (en) * 1995-11-06 1998-05-05 Eastman Kodak Company Photographic film storage receptacle with constrained film spooling loops
EP0841131A1 (en) * 1996-11-07 1998-05-13 Bullmer Spezialmaschinen GmbH Cutting device with stroke adjusting means
DE19729530C2 (en) * 1997-07-10 1999-05-20 Voith Sulzer Finishing Gmbh Slitter
JPH11321830A (en) * 1998-05-21 1999-11-24 Isowa Hooper Swift:Kk Web winding roll packaging material removing device
FR2783191B1 (en) * 1998-09-16 2000-12-15 Lectra Systemes Sa AUTOMATIC CUTTING OF PARTS IN SHEET MATERIAL
KR100948969B1 (en) * 2007-07-16 2010-03-23 주식회사 엘지화학 Process for Preparing Rectangular Pieces at High Cutting Efficiency
ES2346621B1 (en) * 2008-12-23 2011-08-03 Airbus Operations, S.L. PROCEDURE AND DEVICE FOR OBTAINING LONGITUDINAL PARTS.
KR101522167B1 (en) * 2013-02-20 2015-05-21 주식회사 엘지화학 Method for Manufacturing Rectangular Pieces with High Cutting Efficiency
EP3699304B1 (en) * 2019-02-19 2022-09-14 Comelz S.p.A. Apparatus for an improved holding and cutting of sheet material
CN110666989B (en) * 2019-09-27 2021-05-18 路德通电子设备（北京）有限公司 Graphite double-edge-wrapping production equipment
CN116443638B (en) * 2023-03-10 2023-10-24 江苏风驰碳基新材料研究院有限公司 Electrode slice cutting device for sodium ion battery production

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4028167A (en) * 1976-07-29 1977-06-07 Gerber Garment Technology, Inc. Label applicator for automatically controlled cutting machine
DE3341651A1 (en) * 1982-12-29 1984-07-12 Gerber Garment Technology, Inc., South Windsor, Conn. METHOD AND DEVICE FOR PRODUCING CUTS
US4514246A (en) * 1982-11-03 1985-04-30 Gerber Garment Technology, Inc. Method of cutting and labeling sheet material
US4542672A (en) * 1983-12-02 1985-09-24 Gerber Garment Technology, Inc. Sheet material conveyor loading apparatus

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3360210A (en) * 1965-06-22 1967-12-26 Charles D Ingraham & Sons Inc Waste stripper for label-making machines
GB2040778B (en) * 1979-01-29 1982-09-22 Letraset International Ltd Manufacture of die cut vinyl lettering
US4346855A (en) * 1980-07-24 1982-08-31 Elizabeth S. Biggar Stripping method and apparatus for the processing of a continuous laminated web
US4809921A (en) * 1988-02-01 1989-03-07 Willie B. Dueck Apparatus for dispensing and re-rolling floor covering materials
AT393983B (en) * 1988-10-04 1992-01-10 Gfm Holding Ag CUTTING MACHINE FOR CUTTING OUT CUTS FROM TAPE-BASED STARTING MATERIAL, IN PARTICULAR PREPREGS COVERED ON ONE OR ON SIDE

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4028167A (en) * 1976-07-29 1977-06-07 Gerber Garment Technology, Inc. Label applicator for automatically controlled cutting machine
US4514246A (en) * 1982-11-03 1985-04-30 Gerber Garment Technology, Inc. Method of cutting and labeling sheet material
DE3341651A1 (en) * 1982-12-29 1984-07-12 Gerber Garment Technology, Inc., South Windsor, Conn. METHOD AND DEVICE FOR PRODUCING CUTS
US4542672A (en) * 1983-12-02 1985-09-24 Gerber Garment Technology, Inc. Sheet material conveyor loading apparatus

Also Published As

Publication number Publication date
DE59000230D1 (en) 1992-09-10
ES2034851T3 (en) 1993-04-01
AT394515B (en) 1992-04-27
US5080297A (en) 1992-01-14
ATA38189A (en) 1991-10-15
EP0384914A1 (en) 1990-08-29

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