EP1232976A2 - Method and device for separating printing plates - Google Patents
Method and device for separating printing plates Download PDFInfo
- Publication number
- EP1232976A2 EP1232976A2 EP01130773A EP01130773A EP1232976A2 EP 1232976 A2 EP1232976 A2 EP 1232976A2 EP 01130773 A EP01130773 A EP 01130773A EP 01130773 A EP01130773 A EP 01130773A EP 1232976 A2 EP1232976 A2 EP 1232976A2
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- EP
- European Patent Office
- Prior art keywords
- stack
- elements
- edge
- suction
- detected
- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H3/00—Separating articles from piles
- B65H3/08—Separating articles from piles using pneumatic force
- B65H3/0808—Suction grippers
- B65H3/0816—Suction grippers separating from the top of pile
- B65H3/0833—Suction grippers separating from the top of pile and acting on the front part of the articles relatively to the final separating direction
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H3/00—Separating articles from piles
- B65H3/46—Supplementary devices or measures to assist separation or prevent double feed
- B65H3/48—Air blast acting on edges of, or under, articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2701/00—Handled material; Storage means
- B65H2701/10—Handled articles or webs
- B65H2701/19—Specific article or web
- B65H2701/1928—Printing plate
Definitions
- the invention relates to a method for separating sheet-like, flat elements, especially of printing plates to be exposed, from a stack of such Elements, preferably for automatic loading of a platesetter.
- the invention relates to a device for separating sheet-like, flat elements, in particular of printing plates to be exposed, from a stack such elements, preferably for an automatic loading device for one Printing platesetter, with an organ for recording the top of the stack or front element at least in the course of an edge, preferably for Implementation of the aforementioned procedure.
- the invention has for its object in a method or a device the type mentioned, the reliability, preferably inexpensive and to improve with relatively simple means or conversion measures.
- this object is achieved according to the invention in that Separate the top or front element in the stack from the stack Element to be separated bulged, bulged, bulged in an edge area or otherwise bent out.
- a further development of the method according to the invention provides that the separation of the detected element is supported and reinforced by the abutting edge of the bulged edge forth air between the element to be separated and the stack is blown.
- the entire stack transverse to the abutting edges is preferred Ventilated elements.
- the elements are preferably leaning against one another to form a stack asked, the elements each being captured at their lower edge for separation are and are preferably also ventilated from below by the stack is placed on one or more ventilation slots.
- a device according to the invention of the type mentioned at the outset is shown in independent solution of the task in that the sensing organ is designed in such a way that the edge profile of the element detected by it is arched in at least one section.
- detection elements which are arranged in this way or could be designed so that the resulting in the inventive method local disorder is realized.
- check marks are conceivable Claws, clamps, friction fingers or tabs or the like.
- Suction elements are often used to capture and lift sheet-like elements provided that could be in various arrangements or numbers. Especially when using such suction elements, such as after a Further development of the device according to the invention provided the invention with simple Means and few changes can be reliably realized by at least one of the suction elements further from the surface of the suction Element is spaced apart than the other of the suction elements. Up to this one further away Suction element, the suction path covered by the element is larger, so that there is automatically a bulge or bulge in the element at this point results because the element on other, more or less adjacent suction elements rather strikes and therefore has to bend. There a few millimeters of path difference are usually sufficient. This path difference can be structurally special and surprisingly simple and inexpensive Way can be achieved, for example, that the more distant Suction element is used only one washer less, so that this as Spacer is eliminated.
- At least one air blower is preferred to the one to be expected Bulge area of the element to be detected, for example a more distant one Suction element, assigned positioned.
- a next development of the invention provides that there is at least one Air blowing element extends over the entire depth of the stack and ventilates it and so prepared and supported separability of the elements in the entire stack.
- Figures 1 and 2 show schematically, not to scale and only by way of example once in FIG. 1, a bottom view with a view corresponding to that designated I - I in FIG. 2 dash-dotted line and once in Fig. 2 is a sectional view along that in Fig. 1 with II - II designated dash-dotted line of a stack of printing plates to be exposed 1, 1 '.
- the pressure plate denoted by 1 ' is in each case the upper one or in the standing one Stack the front plate of the stack at the start of its separation process is shown when they are removed and removed from the stack.
- a detection element 2 is provided for the separation and detection of the printing plate, the part of a charging device, not shown, also one Not shown platesetter can be.
- the detection element 2 exists essentially of a bar 3 which is pivotable about one to its extent extending pivot axis can be arranged to by a pivoting movement the removal of the front pressure plate 1 ', which in Fig. 2 in the lower Area of the pressure plate 1 'has only just begun to continue in the same direction, until the printing plate 1 ', for example, approximately horizontally in front of the stack in an imagesetter can be introduced.
- Suction elements 4, 5 are arranged on the strip 3, of which Pressure plates 1, 1 'and the bar 3 shown in Fig. 1 only a broken section and only a few suction elements 4, 5 are shown accordingly.
- the suction elements 4 are indicated Screw connections 8 and washers 9 arranged on the bar 3. To the Suction elements 5, the washers 9 are omitted so that they are closer to the Bar 3 are arranged and spaced further from the stack of printing plates 1, 1 ' are.
- the bulge 10 can thus Enter air that promotes detachment of the pressure plate 1 'from the stack.
- Fig. 2 shows below the stack of pressure plates 1, 1 'an air blowing member 12, which is active 13 draws air in the direction of the arrow and into the bulge 10 and the spaces of the remaining printing plates 1 blows across the entire depth of the stack.
- the air-blowing member 12 can be block-shaped, for example, and has a bore 14 be provided, which opens over the entire depth of the stack via a slot 15.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sheets, Magazines, And Separation Thereof (AREA)
- Pile Receivers (AREA)
- Exposure And Positioning Against Photoresist Photosensitive Materials (AREA)
Abstract
Die Erfindung betrifft ein Verfahren zum Vereinzeln von blattartigen, flächigen Elementen (1,1'), insbesondere von zu belichtenden Druckplatten, von einem Stapel derartiger Elemente, vorzugsweise für ein automatisches Laden eines Druckplattenbelichters. Des weiteren betrifft die Erfindung eine Einrichtung zum Vereinzeln von blattartigen, flächigen Elementen, insbesondere von zu belichtenden Druckplatten, von einem Stapel derartiger Elemente, bevorzugt für eine automatische Ladevorrichtung für einen Druckplattenbelichter, mit einem Organ (2) zur Erfassung des im Stapel jeweils oberen bzw. vorderen Elementes (1') wenigstens im Verlauf eines Randes, vorzugsweise zur Durchführung des vorgenannten Verfahrens. Der Erfindung liegt die Aufgabe zugrunde, bei einem Verfahren bzw. einer Einrichtung der genannten Gattung, die Zuverlässigkeit, vorzugsweise kostengünstig und mit relativ einfachen Mitteln bzw. Umbaumaßnahmen, zu verbessern. Diese Aufgabe wird in Verfahrenshinsicht erfindungsgemäß dadurch gelöst, daß beim Trennen des im Stapel oberen bzw. vorderen Elementes vom Stapel dieses vom Stapel zu trennende Element in einem Randbereich ausgebuchtet, aufgewölbt, ausgebeult oder sonstwie ausgebogen wird. <IMAGE>The invention relates to a method for separating sheet-like, flat elements (1, 1 '), in particular printing plates to be exposed, from a stack of such elements, preferably for automatic loading of a printing platesetter. Furthermore, the invention relates to a device for separating sheet - like, flat elements, in particular printing plates to be exposed, from a stack of such elements, preferably for an automatic loading device for a printing platesetter, with an organ (2) for detecting the top or bottom of the stack . front element (1 ') at least in the course of an edge, preferably for carrying out the aforementioned method. The invention is based on the object of improving the reliability, preferably inexpensively and with relatively simple means or conversion measures, in a method or a device of the type mentioned. This object is achieved according to the invention in that when the upper or front element in the stack is separated from the stack, this element to be separated from the stack is bulged, bulged, bulged or otherwise bent out in an edge region. <IMAGE>
Description
Die Erfindung betrifft ein Verfahren zum Vereinzeln von blattartigen, flächigen Elementen, insbesondere von zu belichtenden Druckplatten, von einem Stapel derartiger Elemente, vorzugsweise für ein automatisches Laden eines Druckplattenbelichters.The invention relates to a method for separating sheet-like, flat elements, especially of printing plates to be exposed, from a stack of such Elements, preferably for automatic loading of a platesetter.
Des weiteren betrifft die Erfindung eine Einrichtung zum Vereinzeln von blattartigen, flächigen Elementen, insbesondere von zu belichtenden Druckplatten, von einem Stapel derartiger Elemente, bevorzugt für eine automatische Ladevorrichtung für einen Druckplattenbelichter, mit einem Organ zur Erfassung des im Stapel jeweils oberen bzw. vorderen Elementes wenigstens im Verlauf eines Randes, vorzugsweise zur Durchführung des vorgenannten Verfahrens.Furthermore, the invention relates to a device for separating sheet-like, flat elements, in particular of printing plates to be exposed, from a stack such elements, preferably for an automatic loading device for one Printing platesetter, with an organ for recording the top of the stack or front element at least in the course of an edge, preferably for Implementation of the aforementioned procedure.
Insbesondere für das automatische Laden eines Druckplattenbelichters, bevorzugt zur Belichtung von Druckplatten für die Verwendung in einer Offset-Druckmaschine, aber auch in anderen Speicherbereichen, werden blattartige, flächige Elemente in einem Stapel bereitgehalten bzw. bevorratet, sei es flach übereinanderliegend oder aneinanderlehnend und stehend. Unabhängig von der Oberflächenbeschaffenheit kommt es dabei zumeist zu flächigen Anhaftungen aufeinanderfolgender Elemente, wobei die jeweilige Oberflächenbeschaffenheit Anhaftungen oder sogar Verklebungen noch begünstigen kann. Für einen Ladevorgang müssen aber derartige Elemente üblicherweise nacheinander vereinzelt, also jeweils vom Stapel getrennt werden. Dies muß zuverlässig geschehen, sollen nicht im nachfolgenden Arbeitsschritt Störungen auftreten. Für einen automatischen Ladevorgang soll auch die zuverlässige Trennung wie der Ladevorgang selbst vom Automatismus selbst gewährleistet sein, ohne daß eine Überwachung oder ein Eingriff durch eine Bedienungsperson erfolgen muß, wodurch der Automatismus durchbrochen und insgesamt in Frage gestellt würde.In particular for the automatic loading of a platesetter, preferably for Exposing printing plates for use in an offset press, however also in other storage areas, sheet-like, flat elements are combined in one Pile ready or stocked, be it lying flat on top of each other or leaning against each other and standing. Regardless of the surface condition, it happens mostly to flat build-up of successive elements, whereby the respective surface properties still favor adhesion or even sticking can. Such elements usually have to be used for a charging process separated one after the other, i.e. separated from the stack. This must be reliable should not occur in the subsequent work step. For an automatic loading process, the reliable separation should also be like that Loading process itself can be guaranteed by the automatism itself, without a Surveillance or intervention by an operator must be done, whereby the automatism would be broken and questioned as a whole.
Diese geforderte Zuverlässigkeit ist insbesondere bei sogenannten Autoloadern für Druckplattenbelichter nicht zufriedenstellend verwirklicht und daher ein Problempunkt. This required reliability is particularly important for so-called autoloaders Printing platesetter not implemented satisfactorily and therefore a problem.
Der Erfindung liegt die Aufgabe zugrunde, bei einem Verfahren bzw. einer Einrichtung der eingangs genannten Gattung, die Zuverlässigkeit, vorzugsweise kostengünstig und mit relativ einfachen Mitteln bzw. Umbaumaßnahmen, zu verbessern.The invention has for its object in a method or a device the type mentioned, the reliability, preferably inexpensive and to improve with relatively simple means or conversion measures.
Diese Aufgabe wird in Verfahrenshinsicht erfindungsgemäß dadurch gelöst, daß beim Trennen des im Stapel oberen bzw. vorderen Elementes vom Stapel dieses vom Stapel zu trennende Element in einem Randbereich ausgebuchtet, aufgewölbt, ausgebeult oder sonstwie ausgebogen wird.In terms of the method, this object is achieved according to the invention in that Separate the top or front element in the stack from the stack Element to be separated bulged, bulged, bulged in an edge area or otherwise bent out.
Wesentlich dabei ist, daß im Randverlauf die flächige Anhaftung des abzunehmenden Elementes am nächstfolgenden Element lokal über einen Abschnitt durchbrochen und gelöst wird, so daß sich diese Störung mit Vorteil beim weiteren Abnehmen leicht fortpflanzt. Bei dem Versuch eines gleichmäßigen oder mittigen Erfassens des flächigen Elementes würde sich ein Luftunterdruck ausbilden, der die Anhaftung begünstigt und verstärkt und sich so einem weiteren Abtrennen des Elementes widersetzt. Wird jedoch, wie erfindungsgemäß vorgesehen, der Randverlauf des abzunehmenden Elementes ausgebuchtet, so kommt es zu lokalen Verwerfungen oder Faltenbildungen, die in günstiger Weise die Anhaftungstendenz stören.It is essential that the surface adherence of the surface to be removed Element at the next element locally broken through a section and is solved, so that this disorder reproduces easily with further weight loss. When trying to evenly or centrally grasp the flat An element of negative air pressure would develop that would favor the adhesion and reinforced and thus opposes a further separation of the element. However, as provided according to the invention, the edge course of the element to be removed bulged, there is local warping or wrinkling, which favorably disrupt the tendency to stick.
Eine Weiterbildung des erfindungsgemäßen Verfahrens sieht vor, daß die Trennung des erfaßten Elementes unterstützt und verstärkt wird, indem von der Stoßkante des ausgebuchteten Randes her Luft zwischen das abzutrennende Element und den Stapel geblasen wird.A further development of the method according to the invention provides that the separation of the detected element is supported and reinforced by the abutting edge of the bulged edge forth air between the element to be separated and the stack is blown.
Bevorzugt wird erfindungsgemäß der gesamte Stapel quer zu den Stoßkanten der Elemente belüftet. Die Elemente sind vorzugsweise aneinanderlehnend zu einem Stapel gestellt, wobei die Elemente jeweils an ihrem unteren Rand zum Vereinzeln erfaßt werden und entsprechend bevorzugt auch von unten belüftet werden, indem der Stapel auf einen oder mehrere Lüftungsschlitze gestellt ist.According to the invention, the entire stack transverse to the abutting edges is preferred Ventilated elements. The elements are preferably leaning against one another to form a stack asked, the elements each being captured at their lower edge for separation are and are preferably also ventilated from below by the stack is placed on one or more ventilation slots.
Eine erfindungsgemäße Einrichtung der eingangs genannten Gattung zeichnet sich in selbständiger Lösung der gestellten Aufgabe dadurch aus, daß das Erfasungsorgan derart ausgestaltet ist, daß der von ihm erfaßte Randverlauf des erfaßten Elementes wenigstens in einem Abschnitt gewölbt ist. Die sich daraus erfindungsgemäß ergebenden Vorteile sind sinngemäß bereits im Zusammenhang mit dem erfindungsgemäßen Verfahren geschildert worden.A device according to the invention of the type mentioned at the outset is shown in independent solution of the task in that the sensing organ is designed in such a way that the edge profile of the element detected by it is arched in at least one section. The resulting from this according to the invention Advantages are already in connection with the invention Procedure has been described.
Es sind prinzipiell die verschiedensten Erfassungselemente denkbar, die so angeordnet oder ausgebildet sein könnten, daß die beim erfindungsgemäßen Verfahren entstehende lokale Störung verwirklicht wird. Denkbar sind zum Beispiel häkchenartige Klauen, Klammern, Reibschlußfinger oder-laschen oder dergleichen mehr.In principle, a wide variety of detection elements are conceivable, which are arranged in this way or could be designed so that the resulting in the inventive method local disorder is realized. For example, check marks are conceivable Claws, clamps, friction fingers or tabs or the like.
Häufig werden zum Erfassen und Anheben von blattartigen Elementen Saugelemente vorgesehen, die in verschiedenen Anordnungen oder Anzahlen vorhanden sein könnten. Gerade auch bei Verwendung derartiger Saugelemente kann, wie nach einer Weiterbildung der erfindungsgemäßen Einrichtung vorgesehen, die Erfindung mit einfachen Mitteln und wenigen Veränderungen zuverlässig verwirklicht werden, indem wenigstens eines der Saugelemente weiter von der Oberfläche des anzusaugenden Elementes beabstandet ist als andere der Saugelemente. Bis zu diesem weiter entfernten Saugelement ist der Ansaugweg, der vom Element zurückgelegt wird, größer, so daß sich automatisch an dieser Stelle eine Ausbuchtung oder Auswölbung im Element ergibt, weil das Element an anderen, mehr oder weniger benachbarten Saugelementen eher anschlägt und sich daher gezwungenermaßen durchbiegen muß. Dabei reichen schon einige wenige Millimeter Wegunterschied zumeist aus. Dieser Wegunterschied kann in baulich besonders und überraschend einfacher und kostengünstiger Weise zum Beispiel dadurch erreicht werden, daß bei dem beabstandeteren Saugelement lediglich eine Unterlegscheibe weniger verwendet wird, so daß diese als Distanzstück wegfällt.Suction elements are often used to capture and lift sheet-like elements provided that could be in various arrangements or numbers. Especially when using such suction elements, such as after a Further development of the device according to the invention provided the invention with simple Means and few changes can be reliably realized by at least one of the suction elements further from the surface of the suction Element is spaced apart than the other of the suction elements. Up to this one further away Suction element, the suction path covered by the element is larger, so that there is automatically a bulge or bulge in the element at this point results because the element on other, more or less adjacent suction elements rather strikes and therefore has to bend. there a few millimeters of path difference are usually sufficient. This path difference can be structurally special and surprisingly simple and inexpensive Way can be achieved, for example, that the more distant Suction element is used only one washer less, so that this as Spacer is eliminated.
Wenigstens ein Luftblasorgan wird erfindungsgemäß bevorzugt dem zu erwartenden Aufwölbungsbereich des zu erfassenden Elementes, also bspw. einem beabstandeteren Saugelement, zugeordnet positioniert. Es können auch weitere Luftblasorgane dort oder im weiteren Umfeld angeordnet werden. According to the invention, at least one air blower is preferred to the one to be expected Bulge area of the element to be detected, for example a more distant one Suction element, assigned positioned. There can also be other air blowing elements be arranged there or in the wider environment.
Eine nächste Weiterbildung der Erfindung sieht vor, daß sich das wenigstens eine Luftblasorgan über die gesamte Tiefe des Stapels erstreckt und diesen belüftet und so eine Trennbarkeit der Elemente im gesamten Stapel vorbereitet und unterstützt.A next development of the invention provides that there is at least one Air blowing element extends over the entire depth of the stack and ventilates it and so prepared and supported separability of the elements in the entire stack.
Ein Ausführungsbeispiel, aus dem sich weitere erfinderische Merkmale ergeben, auf das die Erfindung in Ihrem Umfang aber nicht beschränkt ist, ist in der Zeichnung dargestellt. Es zeigen schematisch:
- Fig. 1
- eine Unteransicht eines Stapels aus Druckplatten mit einem Erfassungsorgan und
- Fig. 2
- einen Schnitt durch den Stapel gemäß Fig. 1 entlang der in Fig. 1 mit II - II bezeichneten strichpunktierten Linie.
- Fig. 1
- a bottom view of a stack of printing plates with a detection element and
- Fig. 2
- a section through the stack of FIG. 1 along the dash-dotted line designated II - II in FIG. 1.
Die Figuren 1 und 2 zeigen schematisch, nicht maßstabsgerecht und nur beispielhaft einmal in Fig. 1 eine Unteransicht mit Blick gemäß der in Fig. 2 mit I - I bezeichneten strichpunktierten Linie und einmal in Fig. 2 eine Schnittansicht entlang der in Fig. 1 mit II - II bezeichneten strichpunktierten Linie eines Stapels aus zu belichtenden Druckplatten 1, 1'. Die mit 1' bezeichnete Druckplatte ist jeweils die obere bzw. in dem stehenden Stapel die vordere Platte des Stapels, die zu Beginn ihres Vereinzelungsvorganges bei ihrer Abnahme und Lösung vom Stapel dargestellt ist.Figures 1 and 2 show schematically, not to scale and only by way of example once in FIG. 1, a bottom view with a view corresponding to that designated I - I in FIG. 2 dash-dotted line and once in Fig. 2 is a sectional view along that in Fig. 1 with II - II designated dash-dotted line of a stack of printing plates to be exposed 1, 1 '. The pressure plate denoted by 1 'is in each case the upper one or in the standing one Stack the front plate of the stack at the start of its separation process is shown when they are removed and removed from the stack.
Für die Vereinzelung und Erfassung der Druckplatte ist ein Erfassungsorgan 2 vorgesehen,
das Bestandteil einer nicht näher dargestellten Ladeeinrichtung eines ebenfalls
nicht dargestellten Druckplattenbelichters sein kann. Das Erfassungsorgan 2 besteht
im wesentlichen aus einer Leiste 3, die schwenkbeweglich um eine zu ihrer Erstrekkung
verlaufende Schwenkachse angeordnet sein kann, um durch eine Schwenkbewegung
das Abnehmen der vorderen Druckplatte 1', welches in der Fig. 2 im unteren
Bereich der Druckplatte 1' gerade erst begonnen hat, in gleicher Richtung fortzuführen,
bis die Druckplatte 1' bspw. etwa waagerecht vor dem Stapel in einen Belichter
einführbar ist. An der Leiste 3 sind Saugelemente 4, 5 angeordnet, wobei von den
Druckplatten 1, 1 'und der Leiste 3 in der Fig. 1 nur ein abgebrochener Abschnitt dargestellt
ist und entsprechend nur einige Saugelemente 4, 5 dargestellt sind. Durch die
Saugelemente 4, 5 wird zur Ansaugung der Druckplatte 1' Luft angesaugt und durch
angedeutete Schläuche 6 oder dergleichen zu einer nicht dargestellten Pumpeirichtung
in Richtung der Pfeile 7 abgeführt. Die Saugelemente 4 sind mit angedeuteten
Schraubverbindungen 8 und Unterlegscheiben 9 an der Leiste 3 angeordnet. An den
Saugelementen 5 sind die Unterlegscheiben 9 fortgelassen, so daß sie näher an der
Leiste 3 angeordnet sind und weiter vom Stapel der Druckplatten 1, 1' beabstandet
sind.A
Wie insbesondere Fig. 1 zeigt, führt dies auf dem Abschnitt der Druckplatte 1', der von
den Saugelementen 5 erfaßt wird, zu einer Auswölbung 10, durch die sich in diesem
Abschnitt der Bereich der Druckplatte 1' von der gestrichelt dargestellten Fluchtlinie 11
der übrigen Bereiche der Druckplatte 1' entfernt. In die Auswölbung 10 kann somit
Luft eintreten, die ein Ablösen der Druckplatte 1' vom Stapel begünstigt.As shown in FIG. 1 in particular, this leads to the section of the pressure plate 1 'that of
the
Fig. 2 zeigt unterhalb des Stapels der Druckplatten 1, 1' ein Luftblasorgan 12, das aktiv
in Richtung des Pfeiles 13 Luft ansaugt und in die Auswölbung 10 und die Zwischenräume
der übrigen Druckplatten 1 über die gesamte Tiefe des Stapels einbläst.
Das Luftblasorgan 12 kann bspw. klotzförmig ausgebildet und mit einer Bohrung 14
versehen sein, die sich über die gesamte Tiefe des Stapels über einen Schlitz 15 öffnet.Fig. 2 shows below the stack of
Claims (8)
dadurch gekennzeichnet, daß beim Trennen des im Stapel oberen bzw. vorderen Elementes vom Stapel das obere Element in einem Randverlauf ausgebuchtet wird.Method for separating sheet-like, flat elements, in particular printing plates to be exposed, from a stack of such elements, preferably for automatic loading of a printing platesetter,
characterized in that when the upper or front element in the stack is separated from the stack, the upper element is bulged out in an edge course.
vorzugsweise zur Durchführung des Verfahrens nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet, daß das Erfassungsorgan (2) derart ausgestaltet ist, daß der von ihm erfaßte Randverlauf des erfaßten Elementes (1') wenigstens in einem Abschnitt (10) gewölbt ist.Device for separating sheet-like, flat elements, in particular of printing plates to be exposed, from a stack of such elements, preferably for an automatic loading device for a printing platesetter, with an organ for detecting the top or front element in the stack at least in the course of an edge,
preferably for carrying out the method according to one of the preceding claims,
characterized in that the detection element (2) is designed in such a way that the edge profile of the detected element (1 ') detected by it is arched in at least one section (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP06114361A EP1695931B1 (en) | 2001-01-29 | 2001-12-22 | Device for separating printing plates |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10104078A DE10104078A1 (en) | 2001-01-29 | 2001-01-29 | Process and device for separating printing plates |
| DE10104078 | 2001-01-29 |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP06114361A Division EP1695931B1 (en) | 2001-01-29 | 2001-12-22 | Device for separating printing plates |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP1232976A2 true EP1232976A2 (en) | 2002-08-21 |
| EP1232976A3 EP1232976A3 (en) | 2004-01-02 |
| EP1232976B1 EP1232976B1 (en) | 2006-10-18 |
Family
ID=7672192
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP06114361A Expired - Lifetime EP1695931B1 (en) | 2001-01-29 | 2001-12-22 | Device for separating printing plates |
| EP01130773A Expired - Lifetime EP1232976B1 (en) | 2001-01-29 | 2001-12-22 | Method and device for separating printing plates |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP06114361A Expired - Lifetime EP1695931B1 (en) | 2001-01-29 | 2001-12-22 | Device for separating printing plates |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US6739588B2 (en) |
| EP (2) | EP1695931B1 (en) |
| JP (1) | JP2002316737A (en) |
| DE (3) | DE10104078A1 (en) |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004018180A (en) * | 2002-06-17 | 2004-01-22 | Dainippon Screen Mfg Co Ltd | Slip sheet taking out device |
| DE10330010B4 (en) | 2003-07-03 | 2006-09-07 | Heidelberger Druckmaschinen Ag | Device for lifting individual flat objects, in particular printing plates to be exposed |
| US20050179763A1 (en) * | 2004-02-18 | 2005-08-18 | Mccarthy Robert | Media handling |
| DE102004015195A1 (en) * | 2004-03-29 | 2005-11-03 | Heidelberger Druckmaschinen Ag | Device for separating printing plates |
| JP2006176287A (en) * | 2004-12-22 | 2006-07-06 | Fuji Photo Film Co Ltd | Automatic supply device of photosensitive printing plate |
| JP4584305B2 (en) * | 2005-02-14 | 2010-11-17 | 本田技研工業株式会社 | Separation method of plate material |
| US7475875B2 (en) * | 2005-07-28 | 2009-01-13 | Heidelberger Druckmaschinen Ag | Apparatus and method for separating printing plates |
| US7604231B2 (en) * | 2007-01-30 | 2009-10-20 | Eastman Kodak Company | Method and apparatus for separating media combinations from a media stack |
| EP2163384A3 (en) | 2008-09-15 | 2010-04-14 | Heidelberger Druckmaschinen AG | Plate separation with magnetic fields |
| DE102010051198A1 (en) | 2010-11-12 | 2011-03-03 | Heidelberger Druckmaschinen Ag | Device for conveying printing plate to imaging device, has blowing air device arranged at front side of printing plate stack and comprising flat-spray nozzles with lateral opening angle of greater than ninety degrees |
| JP2013245108A (en) * | 2012-05-30 | 2013-12-09 | Fuji Xerox Co Ltd | Container for storing media and image forming apparatus |
| US20180229871A1 (en) * | 2015-06-30 | 2018-08-16 | Kimberly-Clark Worldwide, Inc. | Tissue packaging apparatus |
| DE102020207420A1 (en) * | 2020-01-20 | 2021-07-22 | Heidelberger Druckmaschinen Aktiengesellschaft | Device for handling printing plates on a printing machine |
| DE102022106637A1 (en) | 2021-04-26 | 2022-10-27 | Heidelberger Druckmaschinen Aktiengesellschaft | Device for separating printing plates |
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| EP0436892A2 (en) * | 1990-01-12 | 1991-07-17 | Fuji Photo Film Co., Ltd. | Method of and device for feeding sheets |
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- 2001-01-29 DE DE10104078A patent/DE10104078A1/en not_active Withdrawn
- 2001-12-22 DE DE50115149T patent/DE50115149D1/en not_active Expired - Lifetime
- 2001-12-22 EP EP06114361A patent/EP1695931B1/en not_active Expired - Lifetime
- 2001-12-22 EP EP01130773A patent/EP1232976B1/en not_active Expired - Lifetime
- 2001-12-22 DE DE50111270T patent/DE50111270D1/en not_active Expired - Lifetime
-
2002
- 2002-01-29 US US10/059,542 patent/US6739588B2/en not_active Expired - Fee Related
- 2002-01-29 JP JP2002020401A patent/JP2002316737A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3997153A (en) * | 1974-06-13 | 1976-12-14 | U.S. Philips Corporation | Sheet feeding apparatus |
| EP0436892A2 (en) * | 1990-01-12 | 1991-07-17 | Fuji Photo Film Co., Ltd. | Method of and device for feeding sheets |
| DE4210024A1 (en) * | 1992-03-27 | 1993-09-30 | Krause Biagosch Gmbh | Separation device for stacked printing sheets for copier machine - uses lifting tool with suction feet incorporated in flexible suction plate with upwards curved side edges |
| WO2000076899A1 (en) * | 1999-06-11 | 2000-12-21 | Honeywell International Inc. | A vacuum device for peeling off thin sheets |
Also Published As
| Publication number | Publication date |
|---|---|
| DE10104078A1 (en) | 2002-08-01 |
| EP1695931B1 (en) | 2009-09-30 |
| DE50115149D1 (en) | 2009-11-12 |
| EP1232976B1 (en) | 2006-10-18 |
| DE50111270D1 (en) | 2006-11-30 |
| US20020101027A1 (en) | 2002-08-01 |
| EP1695931A1 (en) | 2006-08-30 |
| JP2002316737A (en) | 2002-10-31 |
| US6739588B2 (en) | 2004-05-25 |
| EP1232976A3 (en) | 2004-01-02 |
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