EP3028968B1 - Device and working method for separating and turning of individual sheets stored on a stack of sheets - Google Patents

Device and working method for separating and turning of individual sheets stored on a stack of sheets Download PDF

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Publication number
EP3028968B1
EP3028968B1 EP15003310.8A EP15003310A EP3028968B1 EP 3028968 B1 EP3028968 B1 EP 3028968B1 EP 15003310 A EP15003310 A EP 15003310A EP 3028968 B1 EP3028968 B1 EP 3028968B1
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EP
European Patent Office
Prior art keywords
sheet
suction
sheet stack
individual
stack
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Active
Application number
EP15003310.8A
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German (de)
French (fr)
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EP3028968A1 (en
Inventor
Klaus-J. Riemen
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Wemhoener Surface Technologies GmbH and Co KG
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Wemhoener Surface Technologies GmbH and Co KG
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Publication of EP3028968A1 publication Critical patent/EP3028968A1/en
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    • 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
    • B65H3/0825—Suction grippers separating from the top of pile and acting on the rear 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
    • B65H15/00—Overturning 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
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/30—Orientation, displacement, position of the handled material
    • B65H2301/33—Modifying, selecting, changing orientation
    • B65H2301/332—Turning, overturning
    • B65H2301/3321—Turning, overturning kinetic therefor
    • B65H2301/33214—Turning, overturning kinetic therefor about an axis perpendicular to the direction of displacement and parallel to the surface of material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2801/00—Application field
    • B65H2801/03—Image reproduction devices
    • B65H2801/21—Industrial-size printers, e.g. rotary printing press

Definitions

  • the invention relates to a device and a working method for separating and turning stored on a stack of sheets single sheets according to the preambles of claims 1 and 6.
  • a disadvantage of this known device is that it can not also contact single sheets, so that this either a further stack of sheets already turned in the stack single sheets must be arranged on a laying belt or a separate turning device must be provided, which are very space and cost intensive, just as it unnecessarily delays the working cycle.
  • Separate turning devices for the thin and less breakable and tear-resistant single sheets to be processed are also very expensive, since the single sheets used for coating have a very low weight of sometimes less than 50 g / m 2 and often consist of melamine resin coated papers, which are not very elastic, so that a simple lifting of an edge by means of a pull bar with subsequent turn by 180 ° and subsequent removal from a sheet stack basically prohibits.
  • Known turning devices for plates are also eliminated for technical and economic reasons as a solution.
  • the object of the invention is to provide a device and a working method for separating and turning stored on a stack of sheets single sheets available, which saves space, quickly and economically works without damaging the individual sheets to be turned.
  • the device consists of an over the sheet stack arranged and rotatable about a horizontal axis of rotation and height adjustable suction frame, which is equipped with the sheet pile suction cups facing and the suction frame with a recorded, raised and turned up sheet and then by means of the lifting device lowered sheet stack is also formed down to the horizontal working height of the pull bar, such a single sheet can easily and save space just above a stack of sheets, so that the existing pull strip from the same horizontal height subtract either an unearthed single sheet from the sheet stack or a folded single sheet from the suction frame can.
  • this eliminates the need for a second stack of sheets with turned-over individual sheets, as well as otherwise required portals for a drawing strip, and on the other hand, the process speed can be significantly increased, since during the turning of a single sheet already another non-turned single sheet can be deducted from the sheet pile, which is a Laying a to a furniture or floorboard to be pressed material stack already accelerated very clearly.
  • the suction frame in one of the pull bar opposite and the sheet stack facing edge region is equipped with at least one row of juxtaposed suction lifters, as well as distributed over the remaining surface of the suction frame further active suction lifters or passive bearing surfaces, so always It can be ensured that raising the suction frame in an edge region of the sheet stack can not lead to kinking of a single sheet, which also contributes to the movement sequence of the suction frame.
  • this constructive embodiment ensures that a single sheet taken up at the edge is not bent in any position of the suction frame by more than 90 °, so that buckling, breaking or tearing of a single sheet can be safely ruled out.
  • the suction frame is provided on the suction pads opposite upper side with other siphons and possibly passive bearing surfaces so that it has two identical sides and separate with both sides of individual sheets of a sheet stack and can turn, which Economics of the device and the work process feasible thereby further increases drastically.
  • a plurality of nozzles arranged with which separation air between the Seaschneenden sheet and the sheet stack is blown.
  • the working method for separating and turning stored on a stack of sheets 5 single sheet 3 is such that in a first step, a suction frame 7 with suction 8, 9 is lowered in a horizontal position on a sheet stack 5, in a second step, the siphon over 8 an applied vacuum starting from an outer edge of a single sheet 2, suck the sheet 3 and begin to lift it by lifting and a slight rotation of the suction frame 7 about its horizontal axis of rotation 6 from the sheet stack 5 or peel, not graphically illustrated side blowing nozzles separating air between a single sheet 3 and the sheet stack 5 blow and thus help to solve the single sheet 3 from the sheet pile 5.
  • the suction frame 7 can also perform a composite movement of a rotation and lateral and / or vertical movement shares.
  • the suction frame 7 is moved from the sheet stack 5 up and then, preferably or simultaneously, rotated by 180 ° about its horizontal axis of rotation 6, thereby ensuring can be that a single sheet to be used 3 is deformed by not more than 90 °, whereby no kinking and breaking load of very thin single sheets takes place, which may consist for example of phenol resin impregnated paper of less than 50 g / m 2 .
  • the suction frame 7, which is equipped with suction lifters 8, 9 on both sides, can draw another single sheet 3 from the surface of the sheet stack 5 during the removal of a single sheet 3 from the suction frame 7, so that the fifth method step immediately connect second process step, which further improves the performance of the working method drastically.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)

Description

Die Erfindung betrifft eine Vorrichtung und ein Arbeitsverfahren zum Separieren und Wenden von auf einem Bogenstapel bevorrateten Einzelbögen gemäß den Oberbegriffen der Patentansprüche 1 und 6.The invention relates to a device and a working method for separating and turning stored on a stack of sheets single sheets according to the preambles of claims 1 and 6.

Es ist eine Vorrichtung zum Separieren von auf einem Filmstapel bevorrateten Folienabschnitten bekannt, DE 203 20 325 U1 , welche dünne Einzelbögen mittels einer in einer horizontalen Arbeitshöhe eingerichteten Ziehleiste mit Saughebern anhebt und horizontal bis auf ein Legeband abzieht.It is known an apparatus for separating film sections stored on a film stack, DE 203 20 325 U1 , which lifts thin single sheets by means of a set up in a horizontal working height pull bar with suction and horizontal deducted to a laying belt.

Nachteilig an dieser bekannten Vorrichtung ist, dass sie Einzelbögen nicht auch wenden kann, sodass hierzu entweder eine weiterer Bogenstapel mit bereits im Stapel gewendeten Einzelbögen an einem Legeband angeordnet werden müssen oder aber eine separate Wendevorrichtung vorgesehen werden muss, die sehr platz- und kostenintensiv sind, ebenso wie sie die Arbeitstakte unnötig verzögert. Separate Wendevorrichtungen für die zu verarbeitenden dünnen und wenig bruch- und reißfesten Einzelbögen gestalten sich auch deswegen sehr aufwendig, da die zum Beschichten verwandten Einzelbögen ein sehr geringes Gewicht von zum Teil weniger als 50 g/m2 aufweisen und oftmals aus Melaminharz beschichteten Papieren bestehenden, die wenig elastisch sind, sodass sich ein einfaches Anheben eines Randes mittels einer Ziehleiste mit nachfolgendem Umschlagen um 180° und anschließendem Abziehen von einem Bogenstapel grundsätzlich verbietet. Bekannte Wendevorrichtungen für Platten scheiden ebenfalls aus technischen und wirtschaftlichen Gründen als Lösung aus.A disadvantage of this known device is that it can not also contact single sheets, so that this either a further stack of sheets already turned in the stack single sheets must be arranged on a laying belt or a separate turning device must be provided, which are very space and cost intensive, just as it unnecessarily delays the working cycle. Separate turning devices for the thin and less breakable and tear-resistant single sheets to be processed are also very expensive, since the single sheets used for coating have a very low weight of sometimes less than 50 g / m 2 and often consist of melamine resin coated papers, which are not very elastic, so that a simple lifting of an edge by means of a pull bar with subsequent turn by 180 ° and subsequent removal from a sheet stack basically prohibits. Known turning devices for plates are also eliminated for technical and economic reasons as a solution.

Aufgabe der Erfindung ist es, eine Vorrichtung und ein Arbeitsverfahren zum Separieren und Wenden von auf einem Bogenstapel bevorrateten Einzelbögen zur Verfügung zu stellen, welche ohne Beschädigung der zu wendenden Einzelbögen platzsparend, schnell und wirtschaftlich arbeitet.The object of the invention is to provide a device and a working method for separating and turning stored on a stack of sheets single sheets available, which saves space, quickly and economically works without damaging the individual sheets to be turned.

Die Lösung dieser Aufgabe erfolgt in Verbindung mit den Oberbegriffsmerkmalen erfindungsgemäß zusammen mit den technischen Merkmalen der kennzeichnenden Teile der Patentansprüche 1 und 6.The solution of this object is achieved in conjunction with the preamble features according to the invention together with the technical features of the characterizing parts of claims 1 and 6.

Dadurch, dass die Vorrichtung aus einem über dem Bogenstapel angeordneten und um eine horizontale Drehachse dreh- und höhenverstellbaren Saugrahmen besteht, der mit dem Bogenstapel zugewandten Saughebern ausgestattet ist und sich der Saugrahmen mit einem aufgenommenen, angehobenen und nach oben gewendeten Einzelbogen und anschließend mittels der Hubvorrichtung abgesenktem Bogenstapel ebenfalls bis auf die horizontale Arbeitshöhe der Ziehleiste absenkbar ausgebildet ist, lässt sich ein solcher Einzelbogen einfach und platzsparend unmittelbar oberhalb eines Bogenstapel wenden, sodass die vorhandene Ziehleiste aus gleicher horizontalen Höhe entweder einen nicht umgewendeten Einzelbogen vom Bogenstapel oder einen umgewendeten Einzelbogen vom Saugrahmen abziehen kann.Characterized in that the device consists of an over the sheet stack arranged and rotatable about a horizontal axis of rotation and height adjustable suction frame, which is equipped with the sheet pile suction cups facing and the suction frame with a recorded, raised and turned up sheet and then by means of the lifting device lowered sheet stack is also formed down to the horizontal working height of the pull bar, such a single sheet can easily and save space just above a stack of sheets, so that the existing pull strip from the same horizontal height subtract either an unearthed single sheet from the sheet stack or a folded single sheet from the suction frame can.

Zum einen wird hierdurch ein zweiter Bogenstapel mit umgewendeten Einzelbögen überflüssig, ebenso wie ansonsten erforderliche Portale für eine Ziehleiste, zum anderen lässt sich die Prozessgeschwindigkeit deutlich steigern, da während des Umwendens eines Einzelbogens bereits ein weiterer nicht gewendeter Einzelbogen vom Bogenstapel abgezogen werden kann, was einen Legevorgang eines zu einer Möbel- oder Fußbodenbauplatte zu verpressenden Materialstapels bereits sehr deutlich beschleunigt.On the one hand, this eliminates the need for a second stack of sheets with turned-over individual sheets, as well as otherwise required portals for a drawing strip, and on the other hand, the process speed can be significantly increased, since during the turning of a single sheet already another non-turned single sheet can be deducted from the sheet pile, which is a Laying a to a furniture or floorboard to be pressed material stack already accelerated very clearly.

Weitere vorteilhafte Ausgestaltungen des Gegenstandes der Erfindung ergeben sich mit und in Kombination aus den nachfolgenden Unteransprüchen.Further advantageous embodiments of the subject of the invention will become apparent with and in combination from the following subclaims.

Entsprechend einer besonders vorteilhaften Ausgestaltung der Erfindung ist der Saugrahmen in einem der Ziehleiste entgegengesetzten und dem Bogenstapel zugewandten Randbereich mit mindestens einer Reihe von nebeneinander angeordneten Saughebern ausgestattet, sowie mit über der restlichen Fläche des Saugrahmens verteilten weiteren aktiven Saughebern oder auch mit passiven Auflagerflächen, sodass immer sichergestellt werden kann, dass ein Anheben des Saugrahmens in einem Randbereich des Bogenstapels nicht zu einem Abknicken eines Einzelbogens führen kann, wozu auch der Bewegungsablauf des Saugrahmens beiträgt. Insbesondere gewährleistet diese konstruktive Ausführungsform, dass ein am Rand aufgenommener Einzelbogen in keiner Position des Saugrahmens um mehr als 90° umgebogen wird, sodass ein Knicken, Brechen oder Einreißen eines Einzelbogens sicher ausgeschlossen werden kann.According to a particularly advantageous embodiment of the invention, the suction frame in one of the pull bar opposite and the sheet stack facing edge region is equipped with at least one row of juxtaposed suction lifters, as well as distributed over the remaining surface of the suction frame further active suction lifters or passive bearing surfaces, so always It can be ensured that raising the suction frame in an edge region of the sheet stack can not lead to kinking of a single sheet, which also contributes to the movement sequence of the suction frame. In particular, this constructive embodiment ensures that a single sheet taken up at the edge is not bent in any position of the suction frame by more than 90 °, so that buckling, breaking or tearing of a single sheet can be safely ruled out.

Entsprechend einer besonders bevorzugten Ausführungsform des Gegenstandes der Erfindung ist der Saugrahmen auf der seinen Saughebern entgegengesetzten oberen Seite mit weiteren Saughebern und ggf. passiven Auflagerflächen versehen, sodass er zwei identische Seiten aufweist und mit beiden Seiten Einzelbögen von einem Bogenstapel separieren und wenden kann, was die Wirtschaftlichkeit der Vorrichtung und des damit durchführbaren Arbeitsverfahrens weiter drastisch steigert.According to a particularly preferred embodiment of the object of the invention, the suction frame is provided on the suction pads opposite upper side with other siphons and possibly passive bearing surfaces so that it has two identical sides and separate with both sides of individual sheets of a sheet stack and can turn, which Economics of the device and the work process feasible thereby further increases drastically.

Zur Sicherstellung des störungsfreien Betriebes der Vorrichtung sind auf derjenigen Seite des Bogenstapels, an der ein Einzelbogen von dem Saugrahmen zunächst angehoben wird, mehrere Blasdüsen angeordnet, mit denen Trennluft zwischen den abzuschälenden Einzelbogen und den Bogenstapel eingeblasen wird.To ensure the trouble-free operation of the device are on the side of the sheet stack on which a single sheet is first raised by the suction frame, a plurality of nozzles arranged with which separation air between the abzuschneenden sheet and the sheet stack is blown.

Nachfolgend werden die Vorrichtung und das Arbeitsverfahren anhand von Zeichnungen näher beschrieben. Es zeigen:

Fig. 1
eine Skizze der Vorrichtung mit einem maximal über einen Bogenstapel angehobenem Saugrahmen,
Fig. 2
eine Skizze eines auf einen Bogenstapel abgesenkten Saugrahmens,
Fig. 3
einen Wendevorgang eines Einzelbogens mit gleichzeitiger Abzugsposition der Ziehleiste über einem ungewendeten oberen Einzelbogen eines Bogenstapels, und
Fig. 4
eine Abzugsstellung eines gewendeten Einzelbogens von einem Saugrahmen bei gleichzeitiger Aufnahme eines als nächstes zu wendenden Einzelbogens von einem Bogenstapel.
The device and the working method will be described in more detail below with reference to drawings. Show it:
Fig. 1
a sketch of the device with a maximum raised over a stack of sheets suction frame,
Fig. 2
a sketch of a lowered on a stack of sheets suction frame,
Fig. 3
a turning operation of a single sheet with simultaneous withdrawal position of the pull bar over a non-bowed upper single sheet of a sheet stack, and
Fig. 4
a withdrawn position of a turned single sheet of a suction frame while receiving a next-to-use single sheet of a sheet pile.

Das Arbeitsverfahren zum Separieren und Wenden von auf einem Bogenstapel 5 bevorrateten Einzelbogen 3 erfolgt derart, dass in einem 1. Verfahrensschritt ein Saugrahmen 7 mit Saughebern 8;9 in waagerechter Position auf einen Bogenstapel 5 abgesenkt wird, in einem 2. Verfahrensschritt die Saugheber 8 über ein angelegtes Vakuum von einem äußeren Rand eines Einzelbogens 2 ausgehend, den Einzelbogen 3 ansaugen und beginnen, ihn durch ein Anheben und eine leichte Drehung des Saugrahmens 7 um seine horizontale Drehachse 6 vom Bogenstapel 5 abzuheben bzw. abzuschälen, wobei zeichnerisch nicht dargestellte seitliche Blasdüsen Trennluft zwischen einen Einzelbogen 3 und den Bogenstapel 5 einblasen und so dazu beitragen, den Einzelbogen 3 vom Bogenstapel 5 zu lösen. Der Saugrahmen 7 kann dabei auch eine zusammengesetzte Bewegung aus einer Drehung und seitlichen und/oder vertikalen Bewegungsanteilen ausführen.The working method for separating and turning stored on a stack of sheets 5 single sheet 3 is such that in a first step, a suction frame 7 with suction 8, 9 is lowered in a horizontal position on a sheet stack 5, in a second step, the siphon over 8 an applied vacuum starting from an outer edge of a single sheet 2, suck the sheet 3 and begin to lift it by lifting and a slight rotation of the suction frame 7 about its horizontal axis of rotation 6 from the sheet stack 5 or peel, not graphically illustrated side blowing nozzles separating air between a single sheet 3 and the sheet stack 5 blow and thus help to solve the single sheet 3 from the sheet pile 5. The suction frame 7 can also perform a composite movement of a rotation and lateral and / or vertical movement shares.

In einem 3. Verfahrensschritt wird der Saugrahmen 7 vom Bogenstapel 5 nach oben gefahren und anschließend, bevorzugt oder gleichzeitig, um 180° um seine horizontale Drehachse 6 weiter gedreht, wodurch sichergestellt werden kann, dass ein zu wendender Einzelbogen 3 um nicht mehr als 90° verformt wird, wodurch keine Knick- und Bruchbelastung der sehr dünnen Einzelbögen erfolgt, die beispielsweise aus phenolharzgetränktem Papier von weniger als 50 g/m2 bestehen können.In a third method step, the suction frame 7 is moved from the sheet stack 5 up and then, preferably or simultaneously, rotated by 180 ° about its horizontal axis of rotation 6, thereby ensuring can be that a single sheet to be used 3 is deformed by not more than 90 °, whereby no kinking and breaking load of very thin single sheets takes place, which may consist for example of phenol resin impregnated paper of less than 50 g / m 2 .

Während des Wendens des Einzelbogens 3 erfolgt in einem 1. Zwischenschritt das Anheben des Bogenstapels 5 durch die Hubvorrichtung 4 in eine Arbeitshöhe der Ziehleiste 1, sodass in einem 2. Zwischenschritt ein ungewendeter Einzelbogen 3 von der Ziehleiste 1 angesaugt und vom Bogenstapel 5 über ein ortsfestes Gleitblech 11 bis zu einer zeichnerisch nicht dargestellten Legebahn abgezogen werden kann, woraufhin sich der 4. Verfahrensschritt anschließt, bei dem die gesamte Hubvorrichtung 4 mit dem Bogenstapel 5 mindestens so weit abgesenkt wird, dass sich der auch weiter bis auf die Oberfläche des Bogenstapels 5 abgesenkte Saugrahmen 7 mit dem nach oben gedrehten Einzelbogen 3 auf der Arbeitshöhe der Ziehleiste 1 befindet, woraufhin in einem 5. Verfahrensschritt der gewendete Einzelbogen 3 von der Ziehleiste 1 angesaugt und seitlich vom Saugrahmen 7 über das Gleitblech 11 auf eine Legebahn abgezogen werden kann.During the turning of the single sheet 3 takes place in a first intermediate step, the raising of the sheet stack 5 by the lifting device 4 in a working height of the pull bar 1, so sucked in a 2nd intermediate step, a non-individual sheet 3 from the pull bar 1 and the sheet stack 5 via a stationary Sliding plate 11 can be withdrawn to a laying line, not shown in the drawing, followed by the 4th process step followed, in which the entire lifting device 4 is lowered with the sheet stack 5 at least so far that even further lowered to the surface of the sheet stack 5 Suction frame 7 is at the working height of the pull bar 1 with the turned-up single sheet 3, whereupon in a 5th step, the turned single sheet 3 sucked from the pull bar 1 and can be deducted laterally from the suction frame 7 on the sliding plate 11 on a laying path.

Zur Durchführung eines weiter beschleunigten Arbeitsverfahrens kann der Saugrahmen 7, der beidseitig mit Saughebern 8;9 ausgestattet ist, während des Abziehens eines Einzelbogens 3 vom Saugrahmen 7 einen weiteren Einzelbogen 3 von der Oberfläche des Bogenstapels 5 ansaugen, sodass sich dem 5. Verfahrensschritt sofort der zweite Verfahrensschritt anschließen kann, wodurch sich die Leistungsfähigkeit des Arbeitsverfahrens weiter drastisch verbessert.In order to carry out a further accelerated working process, the suction frame 7, which is equipped with suction lifters 8, 9 on both sides, can draw another single sheet 3 from the surface of the sheet stack 5 during the removal of a single sheet 3 from the suction frame 7, so that the fifth method step immediately connect second process step, which further improves the performance of the working method drastically.

Claims (9)

  1. Device for separating and turning individual sheets (3) stored on a sheet stack (5), comprising a draw bar (1) set up at a horizontal working height and having suction lifters (2) for lifting and horizontally drawing an individual sheet (3) off a sheet stack (5) resting on a lifting device (4), characterized in that the device has a suction frame (7) which is arranged above the sheet stack (5), is vertically adjustable and rotatable about a horizontal axis of rotation (6) and has suction lifters (8) facing the sheet stack (5), and the suction frame (5), together with an individual sheet (3) sucked upwards by the suction lifters (8), lifted off the sheet stack (5) and turned upwards on the suction frame (7), with the sheet stack (5) likewise lowered by means of the lifting device (4), is designed to be movable back so far downward that the turned individual sheet (3) resting on the suction frame (7) is located at the horizontal working height of the draw bar (1).
  2. Device according to Claim 1, characterized in that, in a region opposite the draw bar (1) and facing the sheet stack (5), the suction frame (7) is equipped with at least one row of suction lifters (8) arranged beside one another, and with further active suction lifters (8) arranged distributed over the remaining area of the suction frame (7) or one or more passive supporting surfaces (10) for an individual sheet (3).
  3. Device according to Claim 2, characterized in that an individual sheet (3) picked up at the edge is held so as not to be bent over by more than 90° in any position of the suction frame (7).
  4. Device according to one of the preceding claims, characterized in that the suction frame (7) is equipped with further suction lifters (9) on its side opposite its suction lifters (8).
  5. Device according to one of the preceding claims, characterized in that blower nozzles, with which separating air can be blown in between the individual sheet (3) to be lifted and the sheet stack (5), are arranged on that side of the sheet stack (5) on which an individual sheet (3) is first lifted by the suction frame (7).
  6. Working method of the device for separating and turning individual sheets stored on a sheet stack, according to one of the preceding claims, characterized in that in a 1st method step, a suction frame (7) is lowered onto the surface of the sheet stack (5) in a position parallel to the same, in a 2nd method step, the suction lifters (2) suck up an individual sheet (3) via an applied vacuum, starting from the outer edge of the individual sheet (3), and begin to separate the latter from the sheet stack (5), in a 3rd method step, the suction frame (7) is moved upward from the sheet stack (5) and is subsequently or simultaneously rotated further by up to 180° about its horizontal axis of rotation (6) and is lowered again, in a 4th method step, the sheet stack (5) is lowered by the lifting device (4) at least so far that the suction frame (7) likewise further lowered and having the turned individual sheet (3) is located at the working height of the draw bar (1) and, in a 5th method step, the individual sheet (3) is sucked on by the draw bar (1), lifted and drawn laterally off the suction frame (7).
  7. Working method according to Claim 6, characterized in that during the 2nd method step, separating air is blown between the individual sheets (3) and the sheet stack (5) from lateral blower nozzles, and the individual sheet (3) is thus largely detached from the sheet stack (5).
  8. Working method according to one of the two preceding Claims 6-7, characterized in that during the 3rd method step, in a 1st intermediate step, the lifting device (4) moves the sheet stack (5) to a working height of the draw bar (1) and, in a 2nd intermediate step, an unturned individual sheet (3) is sucked on by the draw bar (1), lifted and drawn off the sheet stack (5), whereupon the 4th method step follows.
  9. Working method according to one of the preceding claims, characterized in that in the 4th method step, the suction frame (7) according to Claim 4 is lowered so far onto the sheet stack (5) that the further suction lifters (9) can grip a further individual sheet (3), and in the subsequent course of the method, the 2nd method step follows immediately.
EP15003310.8A 2014-11-28 2015-11-20 Device and working method for separating and turning of individual sheets stored on a stack of sheets Active EP3028968B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102014117485.2A DE102014117485B4 (en) 2014-11-28 2014-11-28 Apparatus and method for separating and turning single sheets stored on a stack of sheets

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EP3028968A1 EP3028968A1 (en) 2016-06-08
EP3028968B1 true EP3028968B1 (en) 2018-01-10

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DE (1) DE102014117485B4 (en)
ES (1) ES2660469T3 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102018117469A1 (en) 2018-07-19 2020-01-23 Wemhöner Surface Technologies GmbH & Co. KG Working method and device for feeding coating sheets onto a conveyor line
DE102019128972A1 (en) * 2019-07-06 2021-01-07 Wemhöner Surface Technologies GmbH & Co. KG Apparatus and method for turning over a separated coating sheet from a stack of sheets
DE102019128975A1 (en) * 2019-07-06 2021-01-07 Wemhöner Surface Technologies GmbH & Co. KG Device and method for turning coating sheets
EP3763648A1 (en) 2019-07-06 2021-01-13 Wemhöner Surface Technologies GmbH & Co. KG Device and method for bending of coating sheets
EP3763647A1 (en) 2019-07-06 2021-01-13 Wemhöner Surface Technologies GmbH & Co. KG Device and method for turning an individual coating sheet from a stack of sheets

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DE102018117469A1 (en) 2018-07-19 2020-01-23 Wemhöner Surface Technologies GmbH & Co. KG Working method and device for feeding coating sheets onto a conveyor line
DE102019128972A1 (en) * 2019-07-06 2021-01-07 Wemhöner Surface Technologies GmbH & Co. KG Apparatus and method for turning over a separated coating sheet from a stack of sheets
DE102019128975A1 (en) * 2019-07-06 2021-01-07 Wemhöner Surface Technologies GmbH & Co. KG Device and method for turning coating sheets
EP3763648A1 (en) 2019-07-06 2021-01-13 Wemhöner Surface Technologies GmbH & Co. KG Device and method for bending of coating sheets
EP3763647A1 (en) 2019-07-06 2021-01-13 Wemhöner Surface Technologies GmbH & Co. KG Device and method for turning an individual coating sheet from a stack of sheets

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EP3028968A1 (en) 2016-06-08
ES2660469T3 (en) 2018-03-22
DE102014117485A1 (en) 2016-06-02
DE102014117485B4 (en) 2017-03-23

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