EP3181498B1 - Device for the removal of area-measured material from a stack - Google Patents

Device for the removal of area-measured material from a stack Download PDF

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Publication number
EP3181498B1
EP3181498B1 EP15003611.9A EP15003611A EP3181498B1 EP 3181498 B1 EP3181498 B1 EP 3181498B1 EP 15003611 A EP15003611 A EP 15003611A EP 3181498 B1 EP3181498 B1 EP 3181498B1
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EP
European Patent Office
Prior art keywords
transport roller
magazine
area
removal opening
stack
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP15003611.9A
Other languages
German (de)
French (fr)
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EP3181498A1 (en
Inventor
Marc Tellen
Andreas Haurenherm
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beumer Group GmbH and Co KG
Original Assignee
Beumer Group GmbH and Co KG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Beumer Group GmbH and Co KG filed Critical Beumer Group GmbH and Co KG
Priority to ES15003611T priority Critical patent/ES2791191T3/en
Priority to EP15003611.9A priority patent/EP3181498B1/en
Publication of EP3181498A1 publication Critical patent/EP3181498A1/en
Application granted granted Critical
Publication of EP3181498B1 publication Critical patent/EP3181498B1/en
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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
    • B65H3/085—Suction grippers separating from the bottom of pile
    • B65H3/0858—Suction grippers separating from the bottom of pile this action resulting merely in a curvature of each article being separated
    • B65H3/0866—Suction grippers separating from the bottom of pile this action resulting merely in a curvature of each article being separated the final separation being performed between rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H5/00—Feeding articles separated from piles; Feeding articles to machines
    • B65H5/06—Feeding articles separated from piles; Feeding articles to machines by rollers or balls, e.g. between rollers
    • B65H5/062—Feeding articles separated from piles; Feeding articles to machines by rollers or balls, e.g. between rollers between rollers or balls
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/10—Rollers
    • B65H2404/14—Roller pairs
    • B65H2404/144—Roller pairs with relative movement of the rollers to / from each other

Definitions

  • the invention relates to a device for removing sheets, in particular valve sacks, from a stack, having a magazine for receiving a stack of sheets, which has two opposite side walls, a magazine bottom and a rear wall, a removal opening extending between the side walls in the magazine bottom is formed with a leading edge and a trailing edge, with a rotatable transport roller, the axis of rotation of which is perpendicular to the side walls of the magazine, with an axis arranged above the transport roller, movable with a vertical movement component against the transport roller and about an axis of rotation running parallel to the axis of rotation of the transport roller rotatable pressure roller, wherein at least one of the transport roller and the pressure roller can be driven in rotation, and with a suction gripper movable under the removal opening with a vertical movement component for gripping and moving out a front one en section of a lowermost sheet of the stack from the removal opening by kinking the front section at the rear edge, the front section being able to be brought between
  • a suction box is provided as a suction gripper, which grips a front end of a flat workpiece of a stack lying at the bottom.
  • the suction box grips the workpiece so that part of the workpiece protrudes forward over the suction box, the protruding part Part of the workpiece between the transport roller and the pressure roller should be gripped and gripped so that the entire workpiece can be pulled out of the magazine.
  • the object of the invention is to ensure the transfer of the front section of the sheet to be pulled out, which is gripped by the suction gripper, to the transport roller without errors.
  • the transport roller has at least two, in particular cylindrical, support areas with a support diameter, spaced apart from one another in the axial direction and intended to interact with the pressure roller, between which at least one receiving area with a smaller diameter is formed, the suction gripper at least partially is movable in the at least one receiving area.
  • the front section of a lowermost sheet structure, which is gripped by the suction gripper can, according to the invention, be forcibly and therefore always reliably brought into the area between the transport roller and the pressure roller, so that even one Inadvertent deformation of the front section is always a safe transfer of the fabric from the suction pad to the transport roller.
  • an axial width of the transport roller corresponds to a width of the removal opening between the side walls of the magazine.
  • the width of the transport roller can be equal to the mutual distance between the side walls of the magazine.
  • the at least one receiving region is expediently cylindrical and has a diameter which is between 10% and 90% of the contact diameter.
  • the transport roller has three contact areas and two receiving areas arranged between two contact areas.
  • the suction gripper can be pivotable about a pivot axis that runs parallel to the axis of rotation of the transport roller.
  • the magazine has a front wall.
  • a distance of the front edge of the removal opening from a front edge or front wall of the magazine bottom can be less than a distance of the rear edge of the removal opening from the rear wall.
  • a stacking direction of the magazine running transversely to the planes of extent of the stacked flat structures is arranged obliquely to the vertical and in particular at an angle of up to 45 ° to the vertical.
  • the magazine bottom, the rear wall, the front wall, if present, and / or the side walls can be formed from parallel cylindrical bars.
  • Fig. 1 shows a device according to the invention with a magazine 2, which serves to hold a stack 4 of flat structures which are formed by valve bags 6 in this example.
  • the magazine 2 has a magazine base 8, two side walls (parallel to the plane of representation), a front wall 10 and a rear wall 12.
  • a removal opening 14 is formed in the magazine base 8, which extends in the transverse direction between the side walls and is delimited to the front by a transverse front edge 16 of the magazine base 8 and to the rear by a transverse rear edge 18 of the magazine base 8.
  • a distance a between the front edge 16 and the front wall 10 or a front edge of the magazine base 8 is smaller than a distance b between the rear edge 18 and the rear wall 12.
  • the magazine 2 is preferably not oriented vertically, but at an angle 20 of approximately 30 ° with respect to the vertical 24, or in other words such that a stacking direction 22 that runs perpendicular to the extension planes of the individual valve bags 6 and to the magazine bottom 8 the angle 20, here about 30 °, is inclined to the vertical 24.
  • the transport roller 34 is around a horizontal; Rotation axis 34a arranged transversely to the side walls of the magazine 2 can be driven in rotation.
  • the transport roller 34 has three cylindrical bearing areas 38, each spaced apart from one another in the axial direction, each of which has a matching bearing diameter D. Between two of the three support areas 38, two receiving areas 40 are formed by cylindrical sections of the transport roller 34 with a smaller diameter d.
  • the suction gripper 30, in turn, is designed such that it can be at least partially moved into the receiving areas 40 during a vertical movement, in this case with a pivoting movement about the pivot axis 32, and can to a certain extent be immersed in the receiving areas, as shown in FIG Fig. 1 and 2 is shown schematically. In particular, there are no suction elements or other parts of the suction gripper within the support areas 38 of the transport roller 34 which would otherwise collide with them.
  • the suction gripper 30 is at least partially immersed, so to speak, in the transport roller 34 or can be moved into the receiving areas 40, there is an improved transfer situation of the front section of a valve bag 6, which is gripped by the suction gripper 30, to the transport roller 34 or into the area between the transport and pressure roller.
  • the transport roller 34 is part of a belt conveyor 50, a conveyor belt 52 being guided between a lateral support area 38 of the transport roller 34 and a deflection roller 54.
  • a roller bar 56 faces an upper run of the conveyor belt 52 at a short distance and can be moved from above against the conveyor belt 52 in order to frictionally grasp a lateral edge region of a valve bag 6 which is transported in a conveying direction 58 by the transport roller 34 in cooperation with the pressure roller 36 becomes.

Landscapes

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

Description

Die Erfindung betrifft eine Vorrichtung zum Entnehmen von Flächengebilden, insbesondere Ventilsäcken, von einem Stapel, mit einem Magazin zum Aufnehmen eines Stapels von Flächengebilden, das zwei gegenüberliegende Seitenwände, einen Magazinboden und eine Rückwand aufweist, wobei in dem Magazinboden eine sich zwischen den Seitenwänden erstreckende Entnahmeöffnung mit einer Vorderkante und einer Hinterkante gebildet ist, mit einer drehbaren Transportwalze, deren Drehachse senkrecht zu den Seitenwänden des Magazins verläuft, mit einer oberhalb der Transportwalze angeordneten, mit einer vertikalen Bewegungskomponente gegen die Transportwalze bewegbaren und um eine parallel zu der Drehachse der Transportwalze verlaufende Drehachse drehbaren Andruckwalze, wobei mindestens eine der Transportwalze und der Andruckwalze drehantreibbar ist, und mit einem unter der Entnahmeöffnung mit einer vertikalen Bewegungskomponente bewegbaren Sauggreifer zum Erfassen und Herausbewegen eines vorderen Teilabschnitts eines untersten Flächengebildes des Stapels aus der Entnahmeöffnung unter Abknicken des vorderen Teilabschnitts an der Hinterkante, wobei der vordere Teilabschnitt zwischen die Transportwalze und die Andruckwalze bringbar ist.The invention relates to a device for removing sheets, in particular valve sacks, from a stack, having a magazine for receiving a stack of sheets, which has two opposite side walls, a magazine bottom and a rear wall, a removal opening extending between the side walls in the magazine bottom is formed with a leading edge and a trailing edge, with a rotatable transport roller, the axis of rotation of which is perpendicular to the side walls of the magazine, with an axis arranged above the transport roller, movable with a vertical movement component against the transport roller and about an axis of rotation running parallel to the axis of rotation of the transport roller rotatable pressure roller, wherein at least one of the transport roller and the pressure roller can be driven in rotation, and with a suction gripper movable under the removal opening with a vertical movement component for gripping and moving out a front one en section of a lowermost sheet of the stack from the removal opening by kinking the front section at the rear edge, the front section being able to be brought between the transport roller and the pressure roller.

Eine derartige Vorrichtung ist aus der DE 1 944 715 A bekannt. Bei dieser Vorrichtung ist ein Saugkasten als Sauggreifer vorgesehen, der ein vorderes Ende eines jeweils zuunterst liegenden flächigen Werkstücks eines Stapels ergreift. Dabei ergreift der Saugkasten das Werkstück so, dass ein Teil des Werkstücks nach vorn über den Saugkasten übersteht, wobei der überstehende Teil des Werkstücks zwischen Transport- und Andruckwalze gelangten und reibschlüssig erfasst werden soll, so dass das gesamte Werkstück aus dem Magazin herausgezogen werden kann.Such a device is from the DE 1 944 715 A known. In this device, a suction box is provided as a suction gripper, which grips a front end of a flat workpiece of a stack lying at the bottom. The suction box grips the workpiece so that part of the workpiece protrudes forward over the suction box, the protruding part Part of the workpiece between the transport roller and the pressure roller should be gripped and gripped so that the entire workpiece can be pulled out of the magazine.

Bei dieser Vorrichtung setzt eine sichere Erfassung des vorderen Teilabschnitts des Werkstücks durch die Transport- und Andruckwalzen voraus, dass der über den Saugkasten nach vorn überstehende Teil des Werkstücks, während der vordere Teilabschnitt aus dem Magazin herausgezogen wird, eine im Wesentlichen gerade, horizontale Ausrichtung beibehält, da er ansonsten nicht in den Bereich zwischen Transport- und Aufnahmewalze eingebracht werden könnte. Mit anderen Worten besteht die Gefahr, dass der vordere Teilabschnitt eines Werkstücks verformt ist oder sich beim Herausziehen unbeabsichtigt verformt, was dann eine Fehlfunktion zur Folge hätte. US 3,934,868 A1 offenbart eine Vorrichtung gemäß dem Oberbegriff des Anspruchs 1.In this device, a reliable detection of the front section of the workpiece by the transport and pressure rollers presupposes that the part of the workpiece projecting forward over the suction box, while the front section is pulled out of the magazine, maintains a substantially straight, horizontal orientation , because otherwise it could not be brought into the area between the transport and take-up roller. In other words, there is a risk that the front section of a workpiece is deformed or inadvertently deformed when pulled out, which would then result in a malfunction. US 3,934,868 A1 discloses a device according to the preamble of claim 1.

Die Aufgabe der Erfindung besteht darin, die Übergabe des von dem Sauggreifer erfassten vorderen Teilabschnitts des jeweils herauszuziehenden Flächengebildes an die Transportwalze fehlerfrei sicherzustellen.The object of the invention is to ensure the transfer of the front section of the sheet to be pulled out, which is gripped by the suction gripper, to the transport roller without errors.

Diese Aufgabe wird durch die Maßnahmen gelöst, dass die Transportwalze mindestens zwei in axialer Richtung voneinander beabstandete, zum Zusammenwirken mit der Andruckwalze bestimmte, insbesondere zylindrische Auflagebereiche mit einem Auflagedurchmesser aufweist, zwischen denen mindestens ein Aufnahmebereich mit kleinerem Durchmesser gebildet ist, wobei der Sauggreifer zumindest teilweise in den mindestens einen Aufnahmebereich bewegbar ist.This object is achieved by the measures that the transport roller has at least two, in particular cylindrical, support areas with a support diameter, spaced apart from one another in the axial direction and intended to interact with the pressure roller, between which at least one receiving area with a smaller diameter is formed, the suction gripper at least partially is movable in the at least one receiving area.

Durch diese Ausgestaltung von Transportwalze und Sauggreifer, die auch als "gabelförmig" bezeichnet werden kann, kann der von dem Sauggreifer erfasste vordere Teilabschnitt eines untersten Flächengebildes erfindungsgemäß zwangsweise und damit stets zuverlässig in den Bereich zwischen Transportwalze und Andruckwalze gebracht werden, so dass auch bei einer unbeabsichtigten Verformung des vorderen Teilabschnitts stets eine sichere Übergabe des Flächengebildes vom Sauggreifer an die Transportwalze erfolgt.With this configuration of the transport roller and suction gripper, which can also be referred to as "fork-shaped", the front section of a lowermost sheet structure, which is gripped by the suction gripper, can, according to the invention, be forcibly and therefore always reliably brought into the area between the transport roller and the pressure roller, so that even one Inadvertent deformation of the front section is always a safe transfer of the fabric from the suction pad to the transport roller.

Bevorzugt ist vorgesehen, dass eine axiale Breite der Transportwalze einer Breite der Entnahmeöffnung zwischen den Seitenwänden des Magazins entspricht. Insbesondere kann die Breite der Transportwalze gleich dem gegenseitigen Abstand der Seitenwände des Magazins sein.It is preferably provided that an axial width of the transport roller corresponds to a width of the removal opening between the side walls of the magazine. In particular, the width of the transport roller can be equal to the mutual distance between the side walls of the magazine.

Zweckmäßigerweise ist der mindestens eine Aufnahmebereich zylindrisch und weist einen Durchmesser auf, der zwischen 10% und 90% des Auflagedurchmessers beträgt.The at least one receiving region is expediently cylindrical and has a diameter which is between 10% and 90% of the contact diameter.

Es kann vorgesehen sein, dass die Transportwalze drei Auflagebereiche und zwei zwischen jeweils zwei Auflagebereichen angeordnete Aufnahmebereiche aufweist.It can be provided that the transport roller has three contact areas and two receiving areas arranged between two contact areas.

Der Sauggreifer kann um eine Schwenkachse verschwenkbar sein, die parallel zur Drehachse der Transportwalze verläuft.The suction gripper can be pivotable about a pivot axis that runs parallel to the axis of rotation of the transport roller.

Es kann vorgesehen sein, dass das Magazin eine Vorderwand aufweist.It can be provided that the magazine has a front wall.

Ein Abstand der Vorderkante der Entnahmeöffnung von einer Vorderkante oder Vorderwand des Magazinbodens kann geringer sein als ein Abstand der Hinterkante der Entnahmeöffnung von der Rückwand.A distance of the front edge of the removal opening from a front edge or front wall of the magazine bottom can be less than a distance of the rear edge of the removal opening from the rear wall.

Bevorzugt ist vorgesehen, dass eine quer zu Erstreckungsebenen der gestapelten Flächengebilde verlaufende Stapelrichtung des Magazins schräg zur Vertikalen und insbesondere unter einem Winkel von bis zu 45° zur Vertikalen angeordnet ist.It is preferably provided that a stacking direction of the magazine running transversely to the planes of extent of the stacked flat structures is arranged obliquely to the vertical and in particular at an angle of up to 45 ° to the vertical.

Der Magazinboden, die Rückwand, die Vorderwand, soweit vorhanden, und/oder die Seitenwände können aus parallelen zylindrischen Stäben gebildet sein.The magazine bottom, the rear wall, the front wall, if present, and / or the side walls can be formed from parallel cylindrical bars.

Die Erfindung wird nachfolgend anhand eines Ausführungsbeispiels beschrieben, wobei auf eine Zeichnung Bezug genommen ist, in der

  • Fig. 1 eine schematische Seitenansicht einer erfindungsgemäßen Vorrichtung zum Entnehmen von Flächengebilden von einem Stapel zeigt, und
  • Fig. 2 eine schematische Draufsicht auf die Vorrichtung nach Fig. 1 zeigt.
The invention is described below using an exemplary embodiment, reference being made to a drawing in which
  • Fig. 1 shows a schematic side view of an inventive device for removing sheets from a stack, and
  • Fig. 2 is a schematic plan view of the device Fig. 1 shows.

Fig. 1 zeigt eine erfindungsgemäße Vorrichtung mit einem Magazin 2, das der Aufnahme eines Stapels 4 von Flächengebilden dient, die in diesem Beispiel durch Ventilsäcke 6 gebildet werden. Das Magazin 2 weist einen Magazinboden 8, zwei Seitenwände (parallel zur Darstellungsebene), eine Vorderwand 10 und eine Rückwand 12 auf. In dem Magazinboden 8 ist eine Entnahmeöffnung 14 ausgebildet, die sich in Querrichtung zwischen den Seitenwänden erstreckt und nach vorn durch eine querverlaufende Vorderkante 16 des Magazinbodens 8 und nach hinten durch eine querverlaufende Hinterkante 18 des Magazinbodens 8 begrenzt ist. Ein Abstand a der Vorderkante 16 von der Vorderwand 10 bzw. einer Vorderkante des Magazinbodens 8 ist kleiner als ein Abstand b der Hinterkante 18 von der Rückwand 12. Fig. 1 shows a device according to the invention with a magazine 2, which serves to hold a stack 4 of flat structures which are formed by valve bags 6 in this example. The magazine 2 has a magazine base 8, two side walls (parallel to the plane of representation), a front wall 10 and a rear wall 12. A removal opening 14 is formed in the magazine base 8, which extends in the transverse direction between the side walls and is delimited to the front by a transverse front edge 16 of the magazine base 8 and to the rear by a transverse rear edge 18 of the magazine base 8. A distance a between the front edge 16 and the front wall 10 or a front edge of the magazine base 8 is smaller than a distance b between the rear edge 18 and the rear wall 12.

Das Magazin 2 ist bevorzugt nicht vertikal orientiert, sondern unter einem Winkel 20 von ca. 30° bezüglich der Vertikalen 24, oder anders gesagt so, dass eine Stapelrichtung 22, die senkrecht zu den Erstreckungsebenen der einzelnen Ventilsäcke 6 und zum Magazinboden 8 verläuft, um den Winkel 20, hier etwa 30°, zur Vertikalen 24 geneigt ist.The magazine 2 is preferably not oriented vertically, but at an angle 20 of approximately 30 ° with respect to the vertical 24, or in other words such that a stacking direction 22 that runs perpendicular to the extension planes of the individual valve bags 6 and to the magazine bottom 8 the angle 20, here about 30 °, is inclined to the vertical 24.

Etwa mittig unterhalb der Entnahmeöffnung 14 ist ein Sauggreifer 30 angeordnet, der mit einer vertikalen Bewegungskomponente bewegbar ist, wobei der Sauggreifer 30 hier um eine horizontal angeordnete Schwenkachse 32 verschwenkbar ist, zwischen einer Greifstellung, in der der Sauggreifer 30 einen vorderen Teilabschnitt 6a eines untersten Ventilsacks 6.1 des Stapels 4, der sich noch vollständig innerhalb des Magazins 2 befindet, erfasst, und einer in Fig. 1 dargestellten Übergabestellung, in der der Sauggreifer 30, nachdem er den vorderen Teilabschnitt 6a aus der Entnahmeöffnung 14 herausgezogen und an der Hinterkante 18 des Magazinbodens 8 abgeknickt hat, den vorderen Teilabschnitt 2a zwischen eine Transportwalze 34 und eine Andruckwalze 36 bringt.A suction gripper 30, which can be moved with a vertical movement component, is arranged approximately in the middle below the removal opening 14, the suction gripper 30 here being pivotable about a horizontally arranged pivot axis 32, between a gripping position in which the suction gripper 30 has a front section 6a of a lowermost valve sack 6.1 of the stack 4, which is still completely inside the magazine 2, and one in Fig. 1 Transfer position shown, in which the suction gripper 30, after pulling the front section 6a out of the removal opening 14 and kinking at the rear edge 18 of the magazine bottom 8, brings the front section 2a between a transport roller 34 and a pressure roller 36.

Die Transportwalze 34 ist um eine horizontale; quer zu den Seitenwänden des Magazins 2 angeordnete Drehachse 34a drehantreibbar. Die Transportwalze 34 weist drei jeweils in axialer Richtung voneinander beabstandete zylindrische Auflagebereiche 38 auf, die jeweils einen übereinstimmenden Auflagedurchmesser D besitzen. Zwischen jeweils zwei der drei Auflagebereiche 38 sind zwei Aufnahmebereiche 40 durch zylindrische Abschnitte der Transportwalze 34 mit kleinerem Durchmesser d gebildet. Der Sauggreifer 30 wiederum ist so ausgebildet, dass er im Zuge einer vertikalen Bewegung, in diesem Falle bei einer Schwenkbewegung um die Schwenkachse 32, zumindest teilweise in die Aufnahmebereiche 40 bewegbar ist und gewissermaßen in diese eintauchen kann, wie dies in Fig. 1 und 2 schematisch dargestellt ist. Insbesondere befinden sich keinerlei Saugelemente oder sonstige Teile des Sauggreifers innerhalb der Auflagebereiche 38 der Transportwalze 34, die ansonsten mit diesen kollidieren würden.The transport roller 34 is around a horizontal; Rotation axis 34a arranged transversely to the side walls of the magazine 2 can be driven in rotation. The transport roller 34 has three cylindrical bearing areas 38, each spaced apart from one another in the axial direction, each of which has a matching bearing diameter D. Between two of the three support areas 38, two receiving areas 40 are formed by cylindrical sections of the transport roller 34 with a smaller diameter d. The suction gripper 30, in turn, is designed such that it can be at least partially moved into the receiving areas 40 during a vertical movement, in this case with a pivoting movement about the pivot axis 32, and can to a certain extent be immersed in the receiving areas, as shown in FIG Fig. 1 and 2 is shown schematically. In particular, there are no suction elements or other parts of the suction gripper within the support areas 38 of the transport roller 34 which would otherwise collide with them.

Dadurch, dass der Sauggreifer 30 zumindest teilweise gewissermaßen in die Transportwalze 34 eintaucht oder in die Aufnahmebereiche 40 bewegt werden kann, besteht eine verbesserte Übergabesituation des von dem Sauggreifer 30 erfassten vorderen Teilabschnitts eines Ventilsacks 6 an die Transportwalze 34 bzw. in den Bereich zwischen Transport- und Andruckwalze.Because the suction gripper 30 is at least partially immersed, so to speak, in the transport roller 34 or can be moved into the receiving areas 40, there is an improved transfer situation of the front section of a valve bag 6, which is gripped by the suction gripper 30, to the transport roller 34 or into the area between the transport and pressure roller.

In der dargestellten Ausführungsform ist die Transportwalze 34 Teil eines Gurtförderers 50, wobei ein Fördergurt 52 zwischen einem seitlichen Auflagebereich 38 der Transportwalze 34 und einer Umlenkrolle 54 geführt ist. Eine Rollenleiste 56 steht einem Obertrum des Fördergurts 52 mit geringem Abstand gegenüber und ist von oben gegen den Fördergurt 52 bewegbar, um einen seitlichen Randbereich eines Ventilsacks 6 reibschlüssig zu erfassen, der von der Transportwalze 34 in Zusammenwirken mit der Andruckwalze 36 in einer Förderrichtung 58 transportiert wird.In the embodiment shown, the transport roller 34 is part of a belt conveyor 50, a conveyor belt 52 being guided between a lateral support area 38 of the transport roller 34 and a deflection roller 54. A roller bar 56 faces an upper run of the conveyor belt 52 at a short distance and can be moved from above against the conveyor belt 52 in order to frictionally grasp a lateral edge region of a valve bag 6 which is transported in a conveying direction 58 by the transport roller 34 in cooperation with the pressure roller 36 becomes.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

22
Magazinmagazine
44
Stapelstack
66
Ventilsack (Flächengebilde)Valve bag (fabric)
6a6a
vorderer Teilabschnittfront section
6.16.1
unterstes Flächengebilde des Stapelsbottom sheet of the stack
88th
Magazinbodenmagazine bottom
1010
Vorderwandfront wall
1212
Rückwandrear wall
1414
Entnahmeöffnungremoval opening
1616
Vorderkanteleading edge
1818
Hinterkantetrailing edge
2020
Winkelangle
2222
Stapelrichtungstacking direction
2424
Vertikalevertical
3030
SauggreiferSuction pads
3232
Schwenkachseswivel axis
3434
Transportwalzetransport roller
34a34a
Drehachseaxis of rotation
3636
Andruckwalzepressure roller
3838
Auflagebereichsupport area
4040
Aufnahmebereichreception area
5050
GurtfördererBelt conveyors
5252
Fördergurtconveyor belt
5454
Umlenkrolleidler pulley
5656
Rollenleisteroller strip
5858
Förderrichtungconveying direction
aa
Abstand (16 von 10)Distance (16 out of 10)
bb
Abstand (18 von 12)Distance (18 of 12)
DD
Durchmesser (von 38)Diameter (from 38)
dd
Durchmesser (von 40)Diameter (of 40)

Claims (8)

  1. Device for the removal of area-measured material (6) from a stack (4), with a magazine (2) for picking up a stack (4) of area-measured material (6), which has two opposite side walls, a magazine base (8) and a rear wall (12), a removal opening (14) extending between the side walls in the magazine base (8) being formed with a front edge (16) and a rear edge (18), with a rotatable transport roller (34), the axis of rotation (34a) of which runs perpendicularly to the side walls of the magazine (2), with a pressure roller (36) arranged above the transport roller (34), movable with a vertical movement component against the transport roller (34) and rotatable around an axis of rotation, running parallel to the axis of rotation (34a) of the transport roller (34), wherein at least one of the transport roller (34) and the pressure roller (36) can be driven in rotation, and with a suction gripper (30) which can be moved under the removal opening (14) with a vertical movement component for gripping and moving out a front section (6a) of a lowest area-measured material (6.1) of the stack (4) from the removal opening (14) while bending the front section (6a) at the rear edge (18), wherein the front section (6a) can be brought between the transport roller (34) and the pressure roller (36), the transport roller (34) having at least two bearing areas (38) spaced apart from each other in the axial direction, intended to cooperate with the pressure roller (36) with a bearing diameter (D), between which at least one receiving area (40) with lesser diameter (d) is formed, wherein the suction gripper (30) can be moved at least partly into the at least one receiving area (40) with lesser diameter (d), wherein the suction gripper (30) can be pivoted about a stationary swivel axis (32) which runs parallel to the axis of rotation (34a) of the transport roller (34), characterized in that the front section (6a) of the lowest area-measured material (6) gripped by the suction gripper (30) can be forcibly brought into a region between transport roller (34) and pressure roller (36).
  2. Device according to claim 1, characterized that an axial width of the transport roller (34) corresponds to a width of the removal opening (14) between the side walls of the magazine (2).
  3. Device according to claim 1 or 2, characterized that the at least one receiving area (40) is cylindrical and has a diameter (d), which amounts to between 10% and 90% of the bearing diameter (D).
  4. Device according to one of the preceding claims, characterized that the transport roller (34) has three bearing areas (38) and two receiving areas (40) arranged between two bearing areas (38) in each case.
  5. Device according to one of the preceding claims, characterized that the magazine (2) has a front wall (10).
  6. Device according to one of the preceding claims, characterized that a distance (a) of the front edge (16) of the removal opening (14) from a front edge (16) or front wall (10) of the magazine base (8) is less than a distance (b) of the rear edge (18) of the removal opening (14) from the rear wall (12).
  7. Device according to one of the preceding claims, characterized in that a stack direction (22), running transversely to extension planes of the stacked area-measured material (6), of the magazine (2) is arranged diagonally to the vertical and in particular at an angle of up to 45° to the vertical.
  8. Device according to one of the preceding claims, characterized that the magazine base (8), the rear wall (12), the front wall (10), as far as present, and/or the side walls are formed from parallel cylindrical rods.
EP15003611.9A 2015-12-17 2015-12-17 Device for the removal of area-measured material from a stack Active EP3181498B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
ES15003611T ES2791191T3 (en) 2015-12-17 2015-12-17 Device for removing flat products from a stack
EP15003611.9A EP3181498B1 (en) 2015-12-17 2015-12-17 Device for the removal of area-measured material from a stack

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP15003611.9A EP3181498B1 (en) 2015-12-17 2015-12-17 Device for the removal of area-measured material from a stack

Publications (2)

Publication Number Publication Date
EP3181498A1 EP3181498A1 (en) 2017-06-21
EP3181498B1 true EP3181498B1 (en) 2020-02-19

Family

ID=54850479

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15003611.9A Active EP3181498B1 (en) 2015-12-17 2015-12-17 Device for the removal of area-measured material from a stack

Country Status (2)

Country Link
EP (1) EP3181498B1 (en)
ES (1) ES2791191T3 (en)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1428149A (en) * 1921-08-30 1922-09-05 Pollard Alling Mfg Company Sheet-feeding mechanism
FR977081A (en) * 1942-06-18 1951-03-27 Const Mecaniques Des Richardie Automatic paper cut dispenser for feeding folding, gluing or other machines
US3155386A (en) * 1962-07-10 1964-11-03 Cutler Mail Chute Company Sheet-feeding device
DE1944715A1 (en) 1969-09-03 1971-03-11 Windmoeller & Hoelscher Device for separating stacked, flat, flexible workpieces
US3934868A (en) * 1973-12-07 1976-01-27 Astro Engineering Corporation Top loading, continuous suction feeder attachment for printing apparatus
EP0207778A3 (en) * 1985-07-03 1988-06-15 Portals Engineering Limited Gathering machine

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
EP3181498A1 (en) 2017-06-21
ES2791191T3 (en) 2020-11-03

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