EP0242320A1 - Method and device for punch-cutting readily processable stacks interspersed among one another on strip material - Google Patents

Method and device for punch-cutting readily processable stacks interspersed among one another on strip material Download PDF

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Publication number
EP0242320A1
EP0242320A1 EP87730041A EP87730041A EP0242320A1 EP 0242320 A1 EP0242320 A1 EP 0242320A1 EP 87730041 A EP87730041 A EP 87730041A EP 87730041 A EP87730041 A EP 87730041A EP 0242320 A1 EP0242320 A1 EP 0242320A1
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EP
European Patent Office
Prior art keywords
contour
punching
individual
stacks
stack
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.)
Granted
Application number
EP87730041A
Other languages
German (de)
French (fr)
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EP0242320B1 (en
Inventor
Gerhard Busch
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Individual
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Individual
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Publication date
Priority claimed from DE19863613563 external-priority patent/DE3613563A1/en
Priority claimed from DE19863628301 external-priority patent/DE3628301A1/en
Application filed by Individual filed Critical Individual
Publication of EP0242320A1 publication Critical patent/EP0242320A1/en
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Publication of EP0242320B1 publication Critical patent/EP0242320B1/en
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B26HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26DCUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D3/00Cutting work characterised by the nature of the cut made; Apparatus therefor
    • B26D3/10Making cuts of other than simple rectilinear form
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B26HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26FPERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F1/00Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
    • B26F1/38Cutting-out; Stamping-out
    • B26F1/40Cutting-out; Stamping-out using a press, e.g. of the ram type
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00Cutting
    • Y10T83/04Processes
    • Y10T83/0524Plural cutting steps
    • Y10T83/0538Repetitive transverse severing from leading edge of work
    • Y10T83/0567Nonrectilinear cutting
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00Cutting
    • Y10T83/444Tool engages work during dwell of intermittent workfeed
    • Y10T83/4645With means to clamp work during dwell
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00Cutting
    • Y10T83/748With work immobilizer
    • Y10T83/7487Means to clamp work
    • Y10T83/7493Combined with, peculiarly related to, other element
    • Y10T83/75With or to tool guide
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00Cutting
    • Y10T83/748With work immobilizer
    • Y10T83/7487Means to clamp work
    • Y10T83/7493Combined with, peculiarly related to, other element
    • Y10T83/7513Tool or tool support on movable clamp jaw
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00Cutting
    • Y10T83/748With work immobilizer
    • Y10T83/7487Means to clamp work
    • Y10T83/7573Including clamping face of specific structure
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00Cutting
    • Y10T83/748With work immobilizer
    • Y10T83/7487Means to clamp work
    • Y10T83/758With means to adjust clamp position or stroke
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00Cutting
    • Y10T83/929Tool or tool with support
    • Y10T83/9411Cutting couple type
    • Y10T83/9452With tool contour adjusting means

Definitions

  • the invention relates to a method and a device for separating stacks of individual blanks arranged in an interleaved manner on pre-separated useful strip stacks, for example of printed bottle neck labels, with a punching iron having the punching contour and which can be moved against a punching table.
  • the blanks for these punching machines are laid out in layers of 500 - 1250 sheets and cut into strips on rectangular cutters.
  • Each strip contains a large number of single-use groups, which are separated with a cutting machine in a pull cut will.
  • a punching machine is arranged downstream of this strip cutter, in which the individual blanks receive their final outer contours.
  • a nesting of the individual benefits, as is aimed at to save paper, is not possible with high stacks, since these can only be processed with an oscillating cut that only allows straight cuts.
  • the resulting rectangular primary products result in a high loss in the case of contours rich in contours, since paper and printing account for approximately 70 to 80% of the production costs.
  • the object of the invention is to provide a method for punching pre-cut strips with individual contours with strong contours, in which the waste resulting from pre-production is reduced to a minimum.
  • nested individual blanks can be separated with a die cut, which means great paper savings.
  • Two or three punching units can also be coupled in series, since the front cut in the first unit and the single cut in the second unit are performed.
  • the individual benefits can be moved close together on the sheet and paper waste can be reduced to a minimum.
  • the individual-use stacks are held down in the area of the intended cutting line with a pressure beam along a pressure contour.
  • the cutting line runs at a different distance from the contact contour, so that there can be differences in the hold-down stack and warping of the individual benefits.
  • From DE-PS 685 530 it is known to break down the press beam into individual sections. This breakdown enables the press beam to adjust different base thicknesses and exert a constant contact pressure. However, such a pressure beam cannot be adapted to a cutting line that extends far away from the contact contour.
  • Another object of the invention is to provide a device for carrying out the method for separating nested single-use stacks along a variable cutting line.
  • the benefit strips 18 shown in FIGS. 1 and 2 consist of a large number of individual benefits 36.
  • the side edges 32 of the benefit strips 18 run straight and parallel to each other.
  • the individual benefits 36 are arranged so far apart from one another in the usual way that they can be separated along a straight cut line 40. In this way, rectangular preliminary products are produced, from which the individual blanks 36 are punched out with a subsequent punching machine, not shown.
  • the train section line 40 runs between the front contour 34 of the subsequent panel 41 and the rear contour 33 of the front panel 42 - with reference to the conveying direction 27 (arrow).
  • the panels 41 and 42 have such a large panel spacing 37 that a free pull cut is possible.
  • the useful spacing 37 depends on the contour depth 38 and the edge spacing 44 between the front contour 34 and the drawing line 40. Since this useful spacing 37 can be very large, the waste surface 43 that cannot be used can also be very large.
  • the individual panels 36 are arranged in an interleaved manner and moved together to such a small panel spacing 37 as corresponds to the distance of the front panel 42 from the cutting edge 31 and from the cutting edge 26 to the subsequent panel 41.
  • the waste area 43 is thereby reduced, so that a larger number of benefits can be accommodated on the same strip area.
  • the so nested Blanks are separated from the blank strip 18 along a contour cutting line 16.
  • a punching iron 13 is used to separate such a stack of panels 19 from the panel 18 to be punched, the punching contour 39 of which corresponds to the cutting line 16 between the individual panels 36.
  • the useful strip 18 is pushed under the punching iron 13 with a conveyor slide 45.
  • the cutting line 16 of the punching iron 13 is open and freely selectable and at least partially follows the rear contour 33 of the separated stack of sheets 19.
  • the separated stack of sheets 19 absorbs the displacement generated by the punching iron 13 in the form of an offset angle 35, around which it extends in the working direction 27 (arrow ) is moved. This offset angle 35 extends continuously over the entire stack height 46, so that individual benefits 36 which are offset in the stack but are true to size are produced.
  • the punching iron 13 has a straight trailing edge, which causes a smooth cutting edge 31 on the remaining utility strip 18, allows subsequent erection, with which the utility stacks 19 are aligned prior to further processing and the individual benefits 40 are placed exactly one above the other again.
  • the stack heights 46 to be punched can thus be selected to be substantially larger.
  • FIG. 4 shows a cutting punch 10 in which a press bar 11 presses the inserted utility strip 18 onto a punching table 17.
  • FIG. 4 shows, the individual stack of panels 19 can be separated from the panel of strips 18 with a punch 13 along the cutting line 16.
  • the press beam 11 is guided in a press beam guide 12 and the punch 13 in a punch guide 14.
  • these guides 12 and 14 run vertically and one behind the other, but a common guide or an arrangement laterally next to one another is also possible.
  • a die 20 is inserted into the press beam 11, the front edge 25 of which extends in the working direction 27 (arrow) into the area of the cutting edge 15 of the punching iron 13.
  • the die 20 is provided with one or more holders 21 and fixed to the press beam 11 with fastenings 22.
  • the punching iron 13 has a hollow cylindrical inner contour 26 which at least partially surrounds the die 20.
  • the cutting edge 15 is provided with a cutting edge angle 29, which displaces the separated stack of benefits 19 in the working direction 27.
  • the cutting angle 29 is chamfered.
  • the press beam 11 is provided with a plurality of insertion pieces 23 which can be displaced relative to it. These insert pieces are provided with holders 21 and fastenings 22, with which they can be releasably attached to the press beam 11 in different positions in order to also achieve very strongly varying cutting lines 16a with a contact contour 24.
  • the front edges 25 of the matrices 20 and insertion pieces 23 can deviate from the alignment of the lower edge 30 of the press beam 11 with the same or different angles of attack 28. This creates a pretension with which the moment of the holding means 20 or 23 is compensated with respect to the pressure beam guide 12.

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  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Making Paper Articles (AREA)

Abstract

Zum Abtrennen eines Nutzenstapels (19) von einem zu stanzenden Nutzenstreifen (18) wird ein Stanzeisen (13) mit einer Stanzkontur (39) verwendet, die der erforderlichen Schneidlinie (16) zwischen den Einzelnutzen entspricht. Die Schneidlinie entspricht zugleich der hinteren Kontur (41) des abgetrennten Nutzenstapels (19). Die Schneidinie des Stanzeisens ist offen und frei wählbar. Das Stanzeisen ist an seiner Hinterkante glatt und der abgetrennte Nutzenstapel nimmt die auftretende Verdrängung in einem Versatzwinkels auf, dadurch hat der verbleibenden Nutzenstreifen eine glatte, senkrechte Schnittkante (31).A punching iron (13) with a punching contour (39) which corresponds to the required cutting line (16) between the individual sheets is used to separate a stack of sheets (19) from a blanking strip (18) to be punched. The cutting line also corresponds to the rear contour (41) of the separated utility stack (19). The cutting line of the punching iron is open and freely selectable. The punching iron is smooth on its rear edge and the separated stack of panels absorbs the displacement that occurs at an offset angle, as a result of which the remaining panel of panels has a smooth, vertical cutting edge (31).

Description

Die Erfindung betrifft ein Verfahren und eine Vorrichtung zum Abtrennen von auf vorgetrennten Nutzenstreifenstapeln verschachtelt angeordneten Stapeln von Einzelnutzen, bei­spielsweise von gedruckten Flaschenhals-Etiketten, mit einem die Stanzkontur aufweisenden Stanzeisen, welches gegen einen Stanztisch bewegbar ist.The invention relates to a method and a device for separating stacks of individual blanks arranged in an interleaved manner on pre-separated useful strip stacks, for example of printed bottle neck labels, with a punching iron having the punching contour and which can be moved against a punching table.

Heutige Druckerzeugnisse, beispielsweise Etiketten und ähn­liche Produkte, werden vielfach verschachtelt auf einen Bogen gedruckt und in Autoplatinen weiterverarbeitet. Durch die Verbindung der Stanzlinien entstehen dabei Stanz­brücken, die vor der Weiterverarbeitung entfernt werden müssen; dies ist zeitaufwendig und teuer. In kleinen Lagen wird vielfach mit Aufsatzeisen gestanzt, die jedoch eine Verdrängung in dem Papierstapel bewirken, die umso größer ist, je höher der Stapel ist. Für hochwertige Erzeugnisse und hohe Auflagen sind deshalb Durchstanzmaschinen ent­wickelt worden, die diese Stanzbrücken vermeiden und mit sehr geringen Toleranzen auskommen.Today's printed products, such as labels and similar products, are often nested and printed on a sheet and further processed in car boards. The connection of the punching lines creates punching bridges that have to be removed before further processing; this is time consuming and expensive. In small layers, punching dies are often used, which, however, cause a displacement in the paper stack which is greater the higher the stack. Punching machines have therefore been developed for high-quality products and long runs, which avoid these punching bridges and make do with very small tolerances.

Die Zuschnitte für diese Durchstanzmaschinen werden je nach Produktion in Lagen von 500 - 1250 Bogen aufeinandergelegt und rechteckig auf Planschneidern in Streifen geschnitten. Jeder Streifen enthält eine Vielzahl von Einzelnutzengrup­pen, die mit einer Schneidmaschine im Zugschnitt vereinzelt werde. Diesem Streifenschneider ist eine Durchstanzmaschine nachgeordnet, in der die Einzelnutzen ihre endgültigen Außenkonturen erhalten. Eine Verschachtelung der Einzelnut­zen, wie sie zur Einsparung von Papier angestrebt wird, ist dabei bei hohen Stapeln nicht möglich, da diese nur mit einem Schwingschnitt verarbeitet werden können, der nur ge­rade Schnitte zuläßt. Die dabei entstehenden rechteckigen Vorprodukte bedeuten bei konturenreichen Formen einen hohen Verlust, da Papier und Druck ca. 70 bis 80 % der Herstel­lungskosten ausmachen.Depending on the production, the blanks for these punching machines are laid out in layers of 500 - 1250 sheets and cut into strips on rectangular cutters. Each strip contains a large number of single-use groups, which are separated with a cutting machine in a pull cut will. A punching machine is arranged downstream of this strip cutter, in which the individual blanks receive their final outer contours. A nesting of the individual benefits, as is aimed at to save paper, is not possible with high stacks, since these can only be processed with an oscillating cut that only allows straight cuts. The resulting rectangular primary products result in a high loss in the case of contours rich in contours, since paper and printing account for approximately 70 to 80% of the production costs.

Aufgabe der Erfindung ist es, ein Verfahren zum Stanzen von vorgeschnittenen Streifen mit starke Konturen aufwei­senden Einzelnutzen zu schaffen, bei dem der durch die Vorproduktion anfallende Abfall auf ein Minimum reduziert wird.The object of the invention is to provide a method for punching pre-cut strips with individual contours with strong contours, in which the waste resulting from pre-production is reduced to a minimum.

Gelöst wird diese Aufgabe dadurch, daß die Einzelnutzensta­pel mit einem senkrecht zu ihnen verlaufenden Stanzschnitt mit offener, frei wählbarer Stanzlinie so von dem übrigen Streifenmaterial abgetrennt werden, daß die Hinterkontur des abgetrennten Einzelnutzenstapels zugleich die Vorder­kontur des nächstfolgenden Einzelnutzenstapels ist.This object is achieved in that the individual-use stacks are separated from the rest of the strip material with a punch cut running perpendicular to them with an open, freely selectable die-cut line in such a way that the rear contour of the separated single-use stack is at the same time the front contour of the next single-use stack.

Durch diese Maßnahmen können verschachtelte Einzelnutzen mit einer Stanzung abgetrennt werden, was eine große Papier­ersparnis bedeutet. Es können auch zwei oder drei Stanzein­heiten hintereinandergekoppelt werden, da in der ersten Einheit der Vorderseitenschnitt und in der zweiten Einheit der Rückseitenschnitt der Einzelnutzen durchgeführt wird. Die Einzelnutzen können auf dem Bogen eng zusammengerückt und der Papierabfall auf ein Minimum reduziert werden. Die Einzelnutzenstapel werden im Bereich der vorgesehenen Schneidlinie mit einem Preßbalken entlang einer Anpreßkon­tur niedergehalten. Die Schneidlinie verläuft in einem un­terschiedlichen Abstand von der Anpreßkontur, so daß es zu Unterschieden in dem niedergehaltenen Stapel und zu Verwer­fungen der Einzelnutzen kommen kann. Aus der DE-PS 685 530 ist es dazu bekannt, den Preßbalken in einzelne Teilstücke aufzugliedern. Durch diese Aufgliederung kann der Preßbal­ken unterschiedliche Unterlagestärken angegleichen und ei­nen gleichbleibenden Anpreßdruck ausüben. Einer Schneidli­nie, die unterschliedlich weit von der Anpreßkontur entfernt verläuft, kann ein solcher Preßbalken jedoch nicht angepaßt werden.Through these measures, nested individual blanks can be separated with a die cut, which means great paper savings. Two or three punching units can also be coupled in series, since the front cut in the first unit and the single cut in the second unit are performed. The individual benefits can be moved close together on the sheet and paper waste can be reduced to a minimum. The individual-use stacks are held down in the area of the intended cutting line with a pressure beam along a pressure contour. The cutting line runs at a different distance from the contact contour, so that there can be differences in the hold-down stack and warping of the individual benefits. From DE-PS 685 530 it is known to break down the press beam into individual sections. This breakdown enables the press beam to adjust different base thicknesses and exert a constant contact pressure. However, such a pressure beam cannot be adapted to a cutting line that extends far away from the contact contour.

Eine weitere Aufgabe der Erfindung ist es eine Vorrichtung zur Durchführung des Verfahrens zum Abtrennen verschachtel­ter Einzelnutzenstapel entlang variabler Schneidlinie zu schaffen.Another object of the invention is to provide a device for carrying out the method for separating nested single-use stacks along a variable cutting line.

Diese Aufgabe wird dadurch gelöst, daß die Anpreßkontur des Preßbalkens mittels austauschbarer, verschiebbarer Halte­mittel variabel ist.This object is achieved in that the pressure contour of the press beam is variable by means of exchangeable, displaceable holding means.

Weitere vorteilhafte Maßnahmen sind in den Unteransprüchen beschrieben. Die Erfindung ist mit einem Ausführungsbei­ spiel in der beiliegenden Zeichnung dargestellt und wird nachfolgend näher beschrieben; es zeigt:

  • Fig. 1 die schematische Darstellung eines vorgeschnittenen Streifens mit herkömmlich angeordneten Einzelnutzen für rechteckige Vorprodukte;
  • Fig. 2 die schematische Darstellung eines vorgeschnittenen Nutzenstreifens mit verschachtelten Einzelnutzen zum Schneidstanzen mit freier Schneidlinie;
  • Fig. 3 die schematische Darstellung des Streifenstanzens mit freier Schneidlinie zur Verarbeitung von Nutzenstreifen nach der Fig. 2;
  • Fig. 4 die Draufsicht auf einen Nutzenstreifen, der auf dem Stanztisch einer Schneidstanze unter einem, mit einer Matritze versehenen Preßbalken gehalten ist und von dem ein Nutzenstapel mit einem Stanz­eisen abgetrennt wird;
  • Fig. 5 die Seitenansicht der Schneidstanze nach Fig. 4;
  • Fig. 6 die Draufsicht auf eine Schneidstanze nach Fig. 4 mit Preßbalken mit verschiebbaren Einschubstücken.
Further advantageous measures are described in the subclaims. The invention is with one embodiment game shown in the accompanying drawing and will be described in more detail below; it shows:
  • Figure 1 is a schematic representation of a pre-cut strip with conventionally arranged individual benefits for rectangular primary products.
  • Figure 2 is a schematic representation of a pre-cut strip with nested individual blanks for punching with a free cutting line.
  • 3 shows the schematic representation of strip punching with a free cutting line for processing utility strips according to FIG. 2;
  • 4 shows the top view of a blank strip which is held on the punching table of a cutting punch under a press beam provided with a die and from which a stack of panels is separated with a punching iron;
  • 5 shows the side view of the cutting punch according to FIG. 4;
  • Fig. 6 is a plan view of a cutting punch according to FIG. 4 with a press beam with displaceable insertion pieces.

Die in den Fig. 1 und 2 dargestellten Nutzenstreifen 18 bestehen aus einer Vielzahl von Einzelnutzen 36. Die Sei­tenkanten 32 der Nutzenstreifen 18 verlaufen gerade und parallel zueinander. Auf dem in der Fig. 1 dargestellten Nutzenstreifen 18 sind die Einzelnutzen 36 in bisher übli­cher Art so weit von einander entfernt angeordnet, daß sie entlang einer gerade verlaufenden Zugschnittlinie 40 abge­trennt werden können. Auf diese Weise entstehen rechteckige Vorprodukte, aus denen mit einer nachfolgenden, nicht darge­stellten Durchstanzmaschine die Einzelnutzen 36 ausgestanzt werden.The benefit strips 18 shown in FIGS. 1 and 2 consist of a large number of individual benefits 36. The side edges 32 of the benefit strips 18 run straight and parallel to each other. On the benefit strip 18 shown in FIG. 1, the individual benefits 36 are arranged so far apart from one another in the usual way that they can be separated along a straight cut line 40. In this way, rectangular preliminary products are produced, from which the individual blanks 36 are punched out with a subsequent punching machine, not shown.

Die Zugschnittlinie 40 verläuft zwischen der Vorderkontur 34 des nachfolgenden Nutzens 41 und der Hinterkontur 33 des vorderen Nutzens 42 - bezogen auf die Förderrichtung 27 (Pfeil). Die Nutzen 41 und 42 weisen einen so großen Nut­zenabstand 37 auf, daß ein freier Zugschnitt möglich ist. Der Nutzenabstand 37 ist abhängig von der Konturentiefe 38 und dem Kantenabstand 44 zwischen der Vorderkontur 34 und der Zugschnittlinie 40. Da dieser Nutzenabstand 37 sehr groß sein kann, kann auch die anfallende, nicht nutzbare Abfallfläche 43 sehr groß sein.The train section line 40 runs between the front contour 34 of the subsequent panel 41 and the rear contour 33 of the front panel 42 - with reference to the conveying direction 27 (arrow). The panels 41 and 42 have such a large panel spacing 37 that a free pull cut is possible. The useful spacing 37 depends on the contour depth 38 and the edge spacing 44 between the front contour 34 and the drawing line 40. Since this useful spacing 37 can be very large, the waste surface 43 that cannot be used can also be very large.

Auf dem in der Fig. 2 dargestellten Nutzenstreifen 18 sind die Einzelnutzen 36 verschachtelt angeordnet und auf einen so kleinen Nutzenabstand 37 zusammengerückt, wie er dem Ab­stand des vorderen Nutzens 42 von der Schnittkante 31 und von der Schnittkante 26 zum nachfolgenden Nutzen 41 ent­spricht. Die Abfallfläche 43 wird dadurch verringert, so daß auf der gleichen Streifenfläche eine größere Anzahl von Nutzen untergebracht werden können. Die so verschachtelten Nutzen werden entlang einer Konturen-Schneidlinie 16 von dem Nutzenstreifen 18 abgetrennt.On the utility strip 18 shown in FIG. 2, the individual panels 36 are arranged in an interleaved manner and moved together to such a small panel spacing 37 as corresponds to the distance of the front panel 42 from the cutting edge 31 and from the cutting edge 26 to the subsequent panel 41. The waste area 43 is thereby reduced, so that a larger number of benefits can be accommodated on the same strip area. The so nested Blanks are separated from the blank strip 18 along a contour cutting line 16.

Wie die Fig. 3 zeigt, wird zum Abtrennen eines derartigen Nutzenstapels 19 von dem zu stanzenden Nutzenstreifen 18 ein Stanzeisen 13 verwendet, dessen Stanzkontur 39 der Schneidlinie 16 zwischen den Einzelnutzen 36 entspricht. Der Nutzenstreifen 18 wird dazu mit einem Förderschieber 45 unter das Stanzeisen 13 geschoben. Die Schneidlinie 16 des Stanzeisens 13 ist offen und frei wählbar und folgt zumin­dest teilweise der Hinterkontur 33 des abgetrennten Nutzen­stapels 19. Der abgetrennte Nutzenstapel 19 nimmt die von dem Stanzeisen 13 erzeugte Verdrängung in Form eines Ver­satzwinkels 35 auf, um den er in Arbeitsrichtung 27 (Pfeil) versetzt wird. Dieser Versatzwinkel 35 verläuft kontinuier­lich über die gesamte Stapelhöhe 46, so daß zwar im Stapel versetzte, aber maßgenaue Einzelnutzen 36 entstehen. Das Stanzeisens 13 weist eine gerade Hinterkante auf, die an dem verbleibenden Nutzenstreifen 18 eine glatte Schnitt­kante 31 bewirkt, ein anschließendes Aufrichten erlaubt, mit dem die Nutzenstapel 19 vor der Weiterverarbeitung ge­richtet und die Einzelnutzen 40 wieder genau übereinander­gelegt werden. Die zu stanzenden Stapelhöhen 46 können so wesentlich größer gewählt werden.As shown in FIG. 3, a punching iron 13 is used to separate such a stack of panels 19 from the panel 18 to be punched, the punching contour 39 of which corresponds to the cutting line 16 between the individual panels 36. For this purpose, the useful strip 18 is pushed under the punching iron 13 with a conveyor slide 45. The cutting line 16 of the punching iron 13 is open and freely selectable and at least partially follows the rear contour 33 of the separated stack of sheets 19. The separated stack of sheets 19 absorbs the displacement generated by the punching iron 13 in the form of an offset angle 35, around which it extends in the working direction 27 (arrow ) is moved. This offset angle 35 extends continuously over the entire stack height 46, so that individual benefits 36 which are offset in the stack but are true to size are produced. The punching iron 13 has a straight trailing edge, which causes a smooth cutting edge 31 on the remaining utility strip 18, allows subsequent erection, with which the utility stacks 19 are aligned prior to further processing and the individual benefits 40 are placed exactly one above the other again. The stack heights 46 to be punched can thus be selected to be substantially larger.

Die zu stanzenden Nutzenstreifen 18 sollen möglichst dicht an der Schneidlinie 16 niedergehalten werden, um ein Auf­werfen der Einzelnutzen 36 zu vermeiden. In den Figuren 4 bis 6 ist dazu eine Schneidstanze 10 dargestellt, bei der ein Preßbalken 11 den eingelegten Nutzenstreifen 18 auf einen Stanztisch 17 preßt. Wie die Fig. 4 zeigt, können die einzelnen Nutzenstapel 19 mit einem Stanzeisen 13 entlang der Schneidlinie 16 von dem Nutzenstreifen 18 abgetrennt werden. Der Preßbalken 11 ist dabei in einer Preßbalkenfüh­rung 12 und das Stanzeisen 13 in einer Stanzeisenführung 14 geführt. Bei dem gezeigten Ausführungsbeispiel verlaufen diese Führungen 12 und 14 senkrecht und hintereinander an­geordnet, ebenso ist aber auch eine gemeinsame Führung oder eine Anordnung seitlich nebeneinander möglich.The benefit strips 18 to be punched should be held as close as possible to the cutting line 16 in order to avoid throwing up the individual benefits 36. In Figures 4 To 6, a cutting punch 10 is shown, in which a press bar 11 presses the inserted utility strip 18 onto a punching table 17. As FIG. 4 shows, the individual stack of panels 19 can be separated from the panel of strips 18 with a punch 13 along the cutting line 16. The press beam 11 is guided in a press beam guide 12 and the punch 13 in a punch guide 14. In the exemplary embodiment shown, these guides 12 and 14 run vertically and one behind the other, but a common guide or an arrangement laterally next to one another is also possible.

Wie die Fig. 5 zeigt, ist in den Preßbalken 11 eine Matrit­ze 20 eingeschoben, deren Vorderrand 25 in Arbeitsrichtung 27 (Pfeil) bis in den Bereich der Stanzschneide 15 des Stanzeisens 13 reicht. Die Matritze 20 ist mit einem oder mehreren Haltern 21 versehen und mit Befestigungen 22 an dem Preßbalken 11 festgelegt. Das Stanzeisen 13 weist bei diesem Ausführungsbeispiel eine hohlzylindrische Innenkon­tur 26 auf, die die Matritze 20 zumindest teilweise umgibt. Die Stanzschneide 15 ist dazu mit einen Schneidenwinkel 29 versehen, der den abgetrennten Nutzenstapel 19 in Arbeits­richtung 27 verdrängt. Zur Erhöhung der Festigkeit des Stanzeisens 13, ist der Schneidenwinkel 29 angefast.As shown in FIG. 5, a die 20 is inserted into the press beam 11, the front edge 25 of which extends in the working direction 27 (arrow) into the area of the cutting edge 15 of the punching iron 13. The die 20 is provided with one or more holders 21 and fixed to the press beam 11 with fastenings 22. In this exemplary embodiment, the punching iron 13 has a hollow cylindrical inner contour 26 which at least partially surrounds the die 20. For this purpose, the cutting edge 15 is provided with a cutting edge angle 29, which displaces the separated stack of benefits 19 in the working direction 27. To increase the strength of the punch iron 13, the cutting angle 29 is chamfered.

Bei dem in der Fig. 6 dargestellten Ausführungsbeispiel ist der Preßbalken 11 mit einer Vielzahl von relativ zu ihm verschiebbaren Einschubstücken 23 versehen. Diese Einschub­stücke sind mit Haltern 21 und Befestigungen 22 versehen, mit denen sie in unterschiedlichen Stellungen lösbar an dem Preßbalken 11 festgelegt werden können, um auch sehr stark variierende Schneidlinien 16a mit einer Anpreßkontur 24 zu erreichen.In the embodiment shown in FIG. 6, the press beam 11 is provided with a plurality of insertion pieces 23 which can be displaced relative to it. These insert pieces are provided with holders 21 and fastenings 22, with which they can be releasably attached to the press beam 11 in different positions in order to also achieve very strongly varying cutting lines 16a with a contact contour 24.

Die Vorderränder 25 der Matritzen 20 und Einschubstücke 23 können mit gleichen oder unterschiedlichen Anstellwinkeln 28 aus der Flucht der Unterkante 30 des Preßbalkens 11 ab­weichen. Dadurch entsteht eine Vorspannung, mit der das Moment der Haltemittel 20 bzw. 23 gegenüber der Preßbalken­führung 12 ausgeglichen wird.The front edges 25 of the matrices 20 and insertion pieces 23 can deviate from the alignment of the lower edge 30 of the press beam 11 with the same or different angles of attack 28. This creates a pretension with which the moment of the holding means 20 or 23 is compensated with respect to the pressure beam guide 12.

Durch unterschiedliche Anstellwinkel 28 der einzelnen Ein­schubstücke 23 können innerhalb einer Anpreßkontur 24 unter­schiedliche Vorspannungen erreicht werden, mit denen bei­spielsweise Toleranzschwankungen ausgeglichen werden können, die durch Unterschiede in der Materialhöhe und -struktur, durch unterschiedliche Farbauftragungen, Prägun­gen, Materialzusammensetzungen und dergleichen entstehen.By different angles of attack 28 of the individual insertion pieces 23, different prestresses can be achieved within a contact contour 24, with which, for example, tolerance fluctuations can be compensated for, which arise due to differences in the material height and structure, through different color applications, embossing, material compositions and the like.

Claims (4)

1. Verfahren zum Abtrennen von auf vorgetrennten Nutzen­streifenstapeln verschachtelt angeordneten Stapeln von Ein­zelnutzen, beispielsweise von gedruckten Flaschenhals-Eti­ketten, mit einem die Stanzkontur aufweisenden Stanzeisen, welches gegen einen Stanztisch bewegbar ist, dadurch ge­kennzeichnet, daß die Einzelnutzenstapel mit einem senk­recht zu ihnen verlaufenden Stanzschnitt mit offener, frei wählbarer Stanzlinie so von dem übrigen Streifenmaterial abgetrennt werden, daß die Hinterkontur des abgetrennten Einzelnutzenstapels zugleich die Vorderkontur des nächst­folgenden Einzelnutzenstapels ist.1. A method for separating nested stacked strips of individual strips, for example of printed bottle neck labels, with a punching die having a stamping contour which can be moved against a punching table, characterized in that the single-piece stack has a die cut running perpendicular to them open, freely selectable punching line are separated from the rest of the strip material in such a way that the rear contour of the separated single-use stack is also the front contour of the next single-use stack. 2. Vorrichtung zum Abtrennen von auf vorgetrennten Nutzen­streifenstapeln verschachtelt angeordneten Stapeln von Ein­zelnutzen, beispielsweise von gedruckten Flaschenhals-Eti­ ketten, mit einem die Stanzkontur aufweisenden Stanzeisen, welches gegen einen Stanztisch bewegbar ist, wobei die Einzel­nutzenstapel im Bereich der vorgesehenen Schneidlinie mit einem Preßbalken entlang einer Anpreßkontur gehalten sind, dadurch gekennzeichnet, daß die Anpreßkontur (24) des Preß­balkens (11) mittels austauschbarer, verschiebbarer Halte­mittel (20, 23) variabel ist.2. Device for separating stacks of individual blanks arranged in an interleaved manner on pre-separated useful strip stacks, for example from printed bottle neck eti chain, with a punching iron having the punching contour, which can be moved against a punching table, the individual-benefit stacks being held in the area of the intended cutting line with a pressing beam along a pressing contour, characterized in that the pressing contour (24) of the pressing beam (11) is exchangeable by displaceable holding means (20, 23) is variable. 3. Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, daß wahlweise die Anpreßkontur (24) aufweisende Matritzen (20) oder einzelne Einschubstücke (23) als der Schneidlinie (16, 16a) zwischen den einzelnen Nutzenstapeln (19) fol­gende Haltemittel in den Preßbalken (11) eingesetzt sind.3. Apparatus according to claim 2, characterized in that optionally the contact contour (24) having matrices (20) or individual insert pieces (23) as the cutting line (16, 16a) between the individual utility stacks (19) following holding means in the press beam (11 ) are used. 4. Schneidstanze nach den Ansprüchen 2 und 3, dadurch ge­kennzeichnet, daß der Vorderrand (25) der Haltemittel (20, 23) durch Anstellwinkel (28) gegenüber dem Preßbalken (11) vorgespannt sind, wobei die Anstellwinkel (28) der Halte­mittel (20, 23) einzeln variabel sind.4. Cutting punch according to claims 2 and 3, characterized in that the front edge (25) of the holding means (20, 23) are biased by the setting angle (28) relative to the press beam (11), the setting angle (28) of the holding means (20 , 23) are individually variable.
EP19870730041 1986-04-18 1987-04-16 Method and device for punch-cutting readily processable stacks interspersed among one another on strip material Expired - Lifetime EP0242320B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE3613563 1986-04-18
DE19863613563 DE3613563A1 (en) 1986-04-18 1986-04-18 Method and device for punching out blanks from stacks of blanks which are inserted one inside the other on strip material
DE19863628301 DE3628301A1 (en) 1986-08-21 1986-08-21 Crosshead for cutting punches, with a variable pressing line
DE3628301 1986-08-21

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EP0242320A1 true EP0242320A1 (en) 1987-10-21
EP0242320B1 EP0242320B1 (en) 1990-09-05

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EP19870730041 Expired - Lifetime EP0242320B1 (en) 1986-04-18 1987-04-16 Method and device for punch-cutting readily processable stacks interspersed among one another on strip material

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US (1) US4790223A (en)
EP (1) EP0242320B1 (en)
JP (1) JPH0749200B2 (en)
ES (1) ES2018043B3 (en)

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DE10235185A1 (en) * 2002-08-01 2004-02-19 Bayerische Motoren Werke Ag cutting equipment
US8042442B2 (en) * 2002-08-01 2011-10-25 Bayerische Motoren Werke Aktiengesellschaft Cutting tool
US20090038451A1 (en) * 2007-08-09 2009-02-12 Solidimension Ltd Method for monitoring cutting blade functionality
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CN113560418A (en) * 2021-07-26 2021-10-29 苏州东风精冲工程有限公司 Small-collapse-angle fine blanking forming method

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Also Published As

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JPS62259798A (en) 1987-11-12
JPH0749200B2 (en) 1995-05-31
ES2018043B3 (en) 1991-03-16
US4790223A (en) 1988-12-13
EP0242320B1 (en) 1990-09-05

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