EP0242320B1 - 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
EP0242320B1
EP0242320B1 EP19870730041 EP87730041A EP0242320B1 EP 0242320 B1 EP0242320 B1 EP 0242320B1 EP 19870730041 EP19870730041 EP 19870730041 EP 87730041 A EP87730041 A EP 87730041A EP 0242320 B1 EP0242320 B1 EP 0242320B1
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EP
European Patent Office
Prior art keywords
punching
stacks
contour
individual
item
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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EP19870730041
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German (de)
French (fr)
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EP0242320A1 (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
Application granted granted Critical
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 for separating single-use stacks arranged on pre-cut useful-strip stacks, for example printed bottle neck labels, with a punching iron having a punching contour, which can be moved against a punching table, the rear contour of the separated single-use stack corresponding to the front contour of the next single-use stack.
  • Each panel stack contains a large number of individual panel stacks that have to be separated with a cutting machine in a pull cut.
  • 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 would be aimed at to save paper, is not possible with high stacks, since these can only be processed with an oscillating cut and this only allows straight cuts.
  • the rectangular preliminary products produced in this way mean a high loss in the case of contours with large 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 of useful strips with individual grooves with strong contours, in which the waste produced by pre-production can be reduced to a minimum.
  • the invention further relates to a device for separating single-use stacks arranged nested on pre-cut useful-strip stacks, for example printed bottle neck labels, with a punching iron having a punching contour, which can be moved against a punching table, the single-use stack in the area of the intended cutting line with a press bar along one Pressure contour are held, especially for performing a method described above.
  • 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 held-down stack and warping of the individual benefits.
  • DE-PS 685 530 it is known to break down the press beam into individual sections. This breakdown enables the press beam to be adjusted to different thicknesses and to exert a constant contact pressure.
  • such a pressure beam cannot be adapted to a cutting line that is far from the contact contour and that is said to be extremely accurate.
  • a further object of the invention is to provide a device for the dimensionally accurate separation of individual-use stacks arranged nested on a stack of utility strips along variable cutting lines.
  • the utility strips 18 shown in FIGS. 1 and 2 consist of a large number of individual panels 36.
  • the side edges 32 of the utility strips 18 run straight and parallel to one another.
  • 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 panels interleaved in this way are separated from the panel 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 panels 19.
  • the separated stack of panels 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 runs 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, permits 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.
  • a cutting punch 10 is shown in FIGS. 4 to 6, 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 fastened 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 insertion pieces are provided with holders 21 and fastenings 22, with which they can be releasably fixed 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)

Description

Die Erfindung betrifft ein Verfahren zum Abtrennen von auf vorgeschnittenen Nutzenstreifenstapein angeordneten Einzelnutzenstapeln, beispielsweise von gedruckten Flaschenhals-Etiketten, mit einem eine Stanzkontur aufweisenden Stanzeisen, welches gegen einen Stanztisch bewegbar ist, wobei die Hinterkontur des abgetrennten Einzelnutzenstapels der Vorderkontur des nächstfolgenden Einzelnutzenstapels entspricht.The invention relates to a method for separating single-use stacks arranged on pre-cut useful-strip stacks, for example printed bottle neck labels, with a punching iron having a punching contour, which can be moved against a punching table, the rear contour of the separated single-use stack corresponding to the front contour of the next single-use stack.

Heutige Druckerzeugnisse, beispielsweise Etiketten und ähnliche Produkte, werden 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. Aus der DE-AS 1 226 025 ist es bekannt, in kleinen Lagen mit einem Aufsatzeisen zu stanzen, wobei jedoch eine Verdrängung in dem Papierstapel auftritt, 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 geringen Toleranzen auskommen.Today's printed products, such as labels and similar products, are printed on a sheet and 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. From DE-AS 1 226 025 it is known to punch in small layers with an attachment iron, but there is 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 small tolerances.

Wie es aus der DE-OS 2 225 586 bekannt ist, werden Zuschnitte für diese Durchstanzmaschinen je nach Produktion in Lagen von 500-1250 Bogen aufeinandergelegt und rechteckig auf Planschneidem zu Nutzenstapelstreifen vorgeschnitten.As is known from DE-OS 2 225 586, blanks for these punching machines are placed on top of one another in layers of 500-1250 sheets, depending on the production, and pre-cut rectangularly on sheet cutters to produce stacked strips.

Jeder Nutzenstapelstreifen enthält eine Vielzahl von Einzelnutzenstapeln, die mit einer Schneidmaschine im Zugschnitt vereinzelt werden müssen. Diesem Streifenschneider ist eine Durchstanzmaschine nachgeordnet, in der die Einzelnutzen ihre endgültigen Außenkonturen erhalten. Eine Verschachtelung der Einzelnutzen, wie sie zur Einsparung von Papier anzustreben wäre, ist dabei bei hohen Stapeln nicht möglich, da diese nur mit einem Schwingschnitt verarbeitet werden können und diese nur gerade Schnitte zuläßt. Die so gefertigten rechteckigen Vorprodukte bedeuten bei konturenreichen Formen einen hohen Verlust, da Papier und Druck ca. 70 bis 80% der Herstellungskosten ausmachen.Each panel stack contains a large number of individual panel stacks that have to be separated with a cutting machine in a pull cut. 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 would be aimed at to save paper, is not possible with high stacks, since these can only be processed with an oscillating cut and this only allows straight cuts. The rectangular preliminary products produced in this way mean a high loss in the case of contours with large 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 Nutzenstreifenstapein mit starke Konturen aufweisenden Einzelnuten zu schaffen, bei dem der durch die Vorproduktion anfallende Abfall auf ein Minimum reduziert werden kann.The object of the invention is to provide a method for punching pre-cut strips of useful strips with individual grooves with strong contours, in which the waste produced by pre-production can be reduced to a minimum.

Gelöst wird diese Aufgabe dadurch, daß die Einzelnutzen verschachtelt auf den Nutzenstreifenstapel angeordnet und mit einem senkrecht zu ihnen verlaufenden Stanzschnitt mit offener, nicht geradlinigen, frei wählbaren Stanzlinie abgetrennt werden.This object is achieved in that the individual blanks are arranged in an interleaved manner on the stack of blanks and separated with a punch cut running perpendicular to them with an open, non-linear, freely selectable punch line.

Durch diese Maßnahmen können starke Konturen aufweisende Einzelnutzen auf einem Bogen eng zusammengerückt und mit einer Stanzung abgetrennt werden. Der Papierabfall wird dabei auf ein Minimum reduziert, was wiederum eine große Papiererspamis 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 werden kann.With these measures, individual contours with strong contours can be moved closely together on a sheet and separated with a punch. The paper waste is reduced to a minimum, which in turn means a large amount of paper spam. 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 can be carried out.

Die Erfindung betrifft ferner eine Vorrichtung zum Abtrennen von auf vorgeschnittenen Nutzenstreifenstapeln verschachtelt angeordneten Einzelnutzenstapel, beispielsweise von gedruckten Flaschenhals-Etiketten, mit einem eine Stanzkontur aufweisenden Stanzeisen, welches gegen einen Stanztisch bewegbar ist, wobei die Einzeinutzenstapel im Bereich der vorgesehenen Schneidlinie mit einem Preßbalken entlang einer Anpreßkontur gehalten sind, insbesondere zur Durchführung eines oben beschriebenen Verfahrens.The invention further relates to a device for separating single-use stacks arranged nested on pre-cut useful-strip stacks, for example printed bottle neck labels, with a punching iron having a punching contour, which can be moved against a punching table, the single-use stack in the area of the intended cutting line with a press bar along one Pressure contour are held, especially for performing a method described above.

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 unterschiedlichen Unterlagestärken angeglichen werden und einen gleichbleibenden Anpreßdruck ausüben. Einer unterschliedlich weit von der Anpreßkontur entfernt verlaufenden Schneidlinie, die äußerst maßgenau sein soll, kann ein solcher Preßbalken jedoch nicht angepaßt werden.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 held-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 be adjusted to different thicknesses and to exert a constant contact pressure. However, such a pressure beam cannot be adapted to a cutting line that is far from the contact contour and that is said to be extremely accurate.

Eine weitere Aufgabe der Erfindung ist es, eine Vorrichtung zum maßgenauen Abtrennen von verschachtelt auf einem Nutzenstreifenstapel angeordneten Einzelnutzenstapeln entlang variabler Schneidlinien zu schaffen.A further object of the invention is to provide a device for the dimensionally accurate separation of individual-use stacks arranged nested on a stack of utility strips along variable cutting lines.

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

Weitere vorteilhafte Maßnahmen sind in den Unteransprüchen beschrieben. Die Erfindung ist mit einem Ausführungsbeispiel 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 illustrated with an embodiment 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 push-in pieces.

Die in den Fig. 1 und 2 dargestellten Nutzenstreifen 18 bestehen aus einer Vielzahl von Einzeinutzen 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 utility strips 18 shown in FIGS. 1 and 2 consist of a large number of individual panels 36. The side edges 32 of the utility strips 18 run straight and parallel to one another. 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 panels interleaved in this way are separated from the panel 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 panels 19. The separated stack of panels 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 runs 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, permits 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. A cutting punch 10 is shown in FIGS. 4 to 6, 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 fastened 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 insertion pieces are provided with holders 21 and fastenings 22, with which they can be releasably fixed 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. A method for separating individual item stacks (19) arranged on precut item strip stacks (18), for example printed bottleneck labels, with a punching iron (13) which has a punching contour and which is movable towards a punching table, the rear contour of the separated individual item stack corresponding to the front contour of the next-following individual copy stack, characterised in that the individual item (36) are arranged internested on the item strip stacks (18) and are separated with a punching cut extending perpendicular to them and having an open, nonrectilinear, freely selectable, punching line (16).
2. Apparatus for separating individual item stacks (19) arranged internested on precut item strip stacks (18), for example printed bottleneck labels, with a punching iron (13) which has a punching contour (39) and which is movable towards a punching table (17), the individual item stacks (19) being held in the region of the intended cutting line (16) with a presser bar (11) along a pressing contour (24), more especially for carrying out a method according to claim 1, characterised in that the pressing contour (24) of the presser bar (11) is variable by means of exchangeable displaceable retaining means (20, 23).
3. Apparatus according to claim 2, characterised in that matrices (20) or individual insert pieces (23) having the pressing contour (24) are inserted as retaining means, following the cutting line (16, 16a) between the individual item stacks (19), into the presser bar (11).
4. A cutting punch according to claims 2 or 3, characterised in that the front edge (25) of the retaining means (20, 23) is biassed by angles of incidence (28) relative to the presser bar (11), the angles of incidence (28) of the retaining means (20, 23) being 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
DE3628301 1986-08-21
DE19863628301 DE3628301A1 (en) 1986-08-21 1986-08-21 Crosshead for cutting punches, with a variable pressing line

Publications (2)

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EP0242320A1 EP0242320A1 (en) 1987-10-21
EP0242320B1 true 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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JP2694585B2 (en) * 1991-12-19 1997-12-24 富士写真フイルム株式会社 Cutting device, air venting device and sheet overlap prevention device
JP4053593B2 (en) * 1995-05-12 2008-02-27 ユニリーバー・ナームローゼ・ベンノートシヤープ Solid soap die
IT1286144B1 (en) * 1996-07-03 1998-07-07 Texo Srl CORRUGATED CARDBOARD SHAPE SEPARATOR.
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
JP6200914B2 (en) * 2015-03-24 2017-09-20 靖 高岡 Brake friction member peeling cutting blade and brake friction member peeling device
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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DE1226025B (en) * 1962-03-13 1966-09-29 Walter Kroll Wrapping machine for stacks of labels or other cuts
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Also Published As

Publication number Publication date
ES2018043B3 (en) 1991-03-16
JPH0749200B2 (en) 1995-05-31
EP0242320A1 (en) 1987-10-21
US4790223A (en) 1988-12-13
JPS62259798A (en) 1987-11-12

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