WO1995024354A1 - Paper sheet stacker - Google Patents

Paper sheet stacker Download PDF

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Publication number
WO1995024354A1
WO1995024354A1 PCT/EP1995/000069 EP9500069W WO9524354A1 WO 1995024354 A1 WO1995024354 A1 WO 1995024354A1 EP 9500069 W EP9500069 W EP 9500069W WO 9524354 A1 WO9524354 A1 WO 9524354A1
Authority
WO
WIPO (PCT)
Prior art keywords
stack
stacking
platform
sheets
auxiliary
Prior art date
Application number
PCT/EP1995/000069
Other languages
German (de)
French (fr)
Inventor
Ernst Claassen
Frank Matthias Schmid
Original Assignee
Jagenberg Papiertechnik Gmbh
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 Jagenberg Papiertechnik Gmbh filed Critical Jagenberg Papiertechnik Gmbh
Priority to DE59501043T priority Critical patent/DE59501043D1/en
Priority to EP95906321A priority patent/EP0748290B1/en
Publication of WO1995024354A1 publication Critical patent/WO1995024354A1/en

Links

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
    • B65H31/00—Pile receivers
    • B65H31/32—Auxiliary devices for receiving articles during removal of a completed pile
    • 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
    • B65H2301/40—Type of handling process
    • B65H2301/42—Piling, depiling, handling piles
    • B65H2301/422—Handling piles, sets or stacks of articles
    • B65H2301/4225—Handling piles, sets or stacks of articles in or on special supports
    • B65H2301/42256—Pallets; Skids; Platforms with feet, i.e. handled together with the stack
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2406/00—Means using fluid
    • B65H2406/10—Means using fluid made only for exhausting gaseous medium
    • B65H2406/11—Means using fluid made only for exhausting gaseous medium producing fluidised bed
    • B65H2406/113—Details of the part distributing the air cushion
    • 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
    • B65H2701/17—Nature of material
    • B65H2701/176—Cardboard

Definitions

  • the invention relates to a device for stacking sheets, in particular shingled sheets of paper, with a vertically movable storage platform and an auxiliary stacking platform that can be moved horizontally into the stacking area by means of a travel drive.
  • the stacking device For stacking sheets of paper a generic device is known from EP-B 0 31 6 568 with which a change of a full stack can be carried out without having to interrupt the supply of the sheets to the stacking point or to remove sheets.
  • the stacking device has an auxiliary stacking platform which can be moved into the stacking area in order to hold the upper part of the stack while the lower part of the stack is being transported away.
  • the auxiliary stacking platform consists of a trolley of low height, which is rotated in the conveying direction by a low-friction cloth and can be moved horizontally by means of a travel drive. So that it can be inserted into the stack, a gap is previously formed between the trailing edges of the sheet.
  • the auxiliary stacking platform was formed by a solid steel plate, which must be made so stable that it is able to support the weight of the upper one
  • the invention has for its object to provide a stacking device with an auxiliary stacking platform which can be moved into a stack with little friction, has as little weight as possible and can be easily adapted to different lengths of the storage platform.
  • the auxiliary stacking platform has two longitudinal beams which are arranged at a distance from one another and extend horizontally in the direction of sheet travel, to which a number of transverse lamellae made of a flat hollow profile are fastened next to one another, which are connected to a compressed air supply and one on their top Have row of air outlet openings.
  • Figure 1 shows a side view of a stacking device with the auxiliary stacking platform according to the invention.
  • FIG. 2 shows the auxiliary stack platform in a perspective, partially sectioned view.
  • FIG. 3 shows an enlarged section X from FIG. 2.
  • Figure 4 shows a longitudinal section through the area of the entry tip.
  • the device shown in FIG. 1 is used to deposit scaly paper or cardboard sheets 1 onto a stack 2 which is formed on a pallet 3.
  • the pallet 3 lies on a vertically movable storage platform 5 in the rack 4 of the stacking device, which is continuously lowered during stacking in such a way that the top of the stack 2 is kept at a constant small distance from the feed plane 6 of the sheets 1.
  • the known stack formation elements (side shaking plates 7, stop boards 8) are arranged in the region of the stack 2.
  • an auxiliary stacking platform 9 which can be moved into the stacking area, is arranged on the inlet side, onto which stacking takes place while a finished stack 2 is being transported away. So that the auxiliary stacking platform 9 can be moved into the stack without upsetting or damaging sheets 1, a gap between the trailing sheet edges is first formed by a separating device 10.
  • the sheet pack located above the auxiliary stacking platform 9 is clamped and held by two clamping bars, each with a row of tongue-shaped clamp elements 11, 12, while the auxiliary stacking platform 9 is moved into the stack 2.
  • the auxiliary stacking platform 9 can be moved horizontally into the stacking area by means of a travel drive 1 3 and can be moved back out of it in a slide 14 which is suspended on the upstream stands 15 of the frame 4 and on which the clamp elements 11, 12 also horizontally so are stored so that they can be moved between the rear edges of the sheets 1 in the stack 2.
  • the structure of the auxiliary stack platform 9 is shown in more detail in FIGS. 2 to 4:
  • the auxiliary stacking platform 9 consists of two longitudinal beams 1 6, 1 7 made of a hollow profile with a rectangular cross-section, which extends horizontally in the carriage 14 on both longitudinal sides of the frame outside the maximum working width in the carriage 14. kend and by means of the travel drive 1 3 horizontally movable. On the top of the longitudinal beams 1 6, 17, a series of transverse lamellae 1 8 are fastened in succession from a flat hollow profile, which with their open
  • End faces are connected to air supply pipes 19, 20, which are mounted on the upper sides of the longitudinal beams 16, 17 and run parallel to them and are connected to a compressed air supply.
  • the air supply pipes 1 9, 20 consist of a U-profile open to the fins 1 8 or of a square pipe which is slotted on the corresponding side.
  • each lamella 1 8 has a row of nozzle-shaped air outlet openings 21 over its length, which - as shown in FIG. 4 - can be opened and closed in each case by means of a ball valve 22.
  • the ball 23 of a ball valve 22 is seated in a nozzle 24 which tapers conically towards the top and has side air inlets. It is pressed by a spring 25 into the closed position, in which its circumference protrudes from the top of the auxiliary stacking platform 9.
  • the lamellae 18 are covered by a thin cover plate 26, which has openings corresponding to the positions of the air outlet openings 21
  • the cover plate 26 forms a pointed edge 28 on the entry side, which enables problem-free entry between the trailing edges of the sheet in the stack 2. It is preferably low-friction on its top, e.g. coated with PTFE.
  • the covering of the lamellae 1 8 has the advantage that when entering the stack 2 the air cushion effect increases, which reduces the friction so that no upsetting or displacements of sheets 1 occur in the stack 2.
  • the stacking device works as follows: During stacking, the upper side of the stack 2 is kept at a constant height below the feed plane 6 by correspondingly lowering the depositing platform 5. If the preselected number of sheets is stacked, this runs first
  • Separating element 1 0 at the level of the feed plane between the sheet trailing edges. It then moves downwards with the stack 2 until the height of the lower clamp elements 12 is reached. It stops there, so that a further lowering of the stack 2 forms a gap below the separating element 10. The clamp elements 1 2 move into this gap. At the same time, the carriage 14 begins to move downwards in synchronization with the stack 2.
  • the separating element 10 is then moved out of the stack 2 again and moves up again in order to form a gap for the upper clamp elements 11 in a corresponding manner. After these are retracted between the trailing edges of the sheet, a sheet packet is clamped between the clamp elements 11, 12.
  • a gap is formed below the lower clamp elements 1 2, into which the auxiliary stack platform 9 is inserted.
  • the weight of the stack 2 presses the balls 23 of the valves 22 downward in the region covered by arches 1 and thus opens the valves 22. Compressed air emerges which is fed to the fins 1 8 via the pipes 19, 20.
  • the escaping compressed air creates an air cushion which minimizes the friction between the lowermost sheet 1 of the stack part lying thereon and the upper side of the auxiliary stacking platform 9.
  • the auxiliary stacking platform 9 now carries the upper part of the stack, while the finished stack 2 located below it is lowered onto the floor and transported away. After placing a new, empty pallet 3, the storage platform 5 is raised until the new pallet 3 is below the auxiliary stacking platform 9. If during the movement of the pallet 3 to the auxiliary stacking platform 9 damage, e.g. B. fear from upstanding nails, the underside of the slats 1 8 is covered by a thin mudguard.
  • the auxiliary stacking platform 9 is then moved back out of the stacking area and in the process transfers the partial stack formed on it to the pallet 3 the valves 22 automatically. Until the next stack change, the sheets 1 are stacked directly on the pallet 3.
  • auxiliary stacking platform 9 from individual slats 1 8 ensures great stability with a relatively low weight even with large working widths, eg. B. more than 2000 mm. There is no deflection due to the dead weight of the auxiliary stacking platform 9, so that the gap between the trailing edge of the sheet required for retraction can be kept very small. There are bigger gaps
  • auxiliary stacking platform 9 Disadvantage that the stack part located above the auxiliary stacking platform 9 is displaced somewhat when transferred to the pallet 3. Furthermore, the modular construction of the auxiliary stacking platform 9 made of lamellas 1 8 enables a structurally simple adaptation to different stack lengths.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pile Receivers (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)

Abstract

Devices for stacking overlappingly-fed paper sheets (1) with a vertically movable support platform (5) and an auxiliary stacking platform (9) that may be horizontally moved into the stacking area by means of a drive are known. In these devices, sheets are stacked while a finished stack is carried away. According to the invention, the auxiliary stacking platform (9) consists of two spaced apart horizontal longitudinal beams (17, 17) that extend in the feeding direction of the sheets and to which a series of transverse blades (18) made of a flat hollow section are secured next to each other. The transverse blades (18) are connected to a compressed air supply and have a row of air outlets (21) on their top side.

Description

B E S C H R E I B U N G DESCRIPTION
Vorrichtung zum Stapeln von BögenDevice for stacking sheets
Technisches GebietTechnical field
Die Erfindung betrifft eine Vorrichtung zum Stapeln von Bögen, insbesondere von geschuppt zugeförderten Papierbögen, mit einer vertikal bewegbaren Ablageplattform und einer mittels eines Fahrantriebs horizontal in den Stapelbereich einfahrbaren Hilfsstapelplattform.The invention relates to a device for stacking sheets, in particular shingled sheets of paper, with a vertically movable storage platform and an auxiliary stacking platform that can be moved horizontally into the stacking area by means of a travel drive.
Stand der TechnikState of the art
Zum Stapeln von Papierbögen ist aus der EP-B 0 31 6 568 eine gattungsgemäße Vorrichtung bekannt, mit der sich ein Wechsel eines vollen Stapels durchführen läßt, ohne daß die Zufuhr der Bögen zur Stapelstelle unterbrochen werden muß oder Bögen ausgeschleust werden müssen. Dazu weist die Stapelvorrichtung eine Hilfs¬ stapelplattform auf, die in den Stapelbereich eingefahren werden kann, um den oberen Stapelteil zu halten, während der untere Teil des Stapels abtransportiert wird.For stacking sheets of paper a generic device is known from EP-B 0 31 6 568 with which a change of a full stack can be carried out without having to interrupt the supply of the sheets to the stacking point or to remove sheets. For this purpose, the stacking device has an auxiliary stacking platform which can be moved into the stacking area in order to hold the upper part of the stack while the lower part of the stack is being transported away.
Die Hilfsstapelplattform besteht aus einem Wagen geringer Höhe, der von einem reibungsarmen Tuch in Förderrichtung umlaufen wird und mittels eines Fahrantriebs horizontal verfahrbar ist. Damit sie in den Stapel eingefahren werden kann, wird vorher zwischen den Bogenhinterkanten eine Lücke gebildet.The auxiliary stacking platform consists of a trolley of low height, which is rotated in the conveying direction by a low-friction cloth and can be moved horizontally by means of a travel drive. So that it can be inserted into the stack, a gap is previously formed between the trailing edges of the sheet.
In der Praxis wurde die Hilfsstapelplattform von einer massiven Stahlplatte gebildet, die so stabil ausgeführt werden muß, daß sie in der Lage ist, das Gewicht des oberenIn practice, the auxiliary stacking platform was formed by a solid steel plate, which must be made so stable that it is able to support the weight of the upper one
Stapelteils zu tragen. Bei großen Arbeitsbreiten (mehr als 2000 mm) führt dies zu Durchbiegungen aufgrund des Eigengewichts der Stahlplatte, so daß die Einfahrlücke zwischen den Bogenkanten vergrößert werden muß. Die vergrößerte Lücke führt zu negativen Effekten, insbesondere dazu, daß sich der Stapelteil oberhalb der Hilfs¬ stapelplattform bei der Übergabe auf die Palette auf dieser versetzt. Weiterhin erfordert die massive Stahlplatte als Großteil eine aufwendige mechanische Be¬ arbeitung.To carry stack part. This leads to large working widths (more than 2000 mm) Deflection due to the weight of the steel plate, so that the entry gap between the sheet edges must be increased. The enlarged gap leads to negative effects, in particular to the fact that the stack part above the auxiliary stack platform is displaced on the pallet when it is transferred to the pallet. In addition, the massive steel plate as a large part requires complex mechanical processing.
Darstellung der ErfindungPresentation of the invention
Der Erfindung liegt die Aufgabe zugrunde, eine Stapelvorrichtung mit einer Hilfs¬ stapelplattform zu schaffen, die reibungsarm in einen Stapel einfahren läßt, möglichst wenig Gewicht aufweist und einfach auf verschiedene Längen der Ablageplattform angepaßbar ist.The invention has for its object to provide a stacking device with an auxiliary stacking platform which can be moved into a stack with little friction, has as little weight as possible and can be easily adapted to different lengths of the storage platform.
Diese Aufgabe wird dadurch gelöst, daß die Hilfsstapelplattform zwei mit Abstand voneinander angeordnete, sich horizontal in Bogenlaufrichtung erstreckende Läng¬ sträger aufweist, an denen eine Reihe von Querlamellen aus einem flachen Hohlprofil nebeneinander befestigt sind, die an eine Druckluftzufuhr angeschlossen sind und an ihrer Oberseite eine Reihe von Luftaustrittsöffnungen aufweisen.This object is achieved in that the auxiliary stacking platform has two longitudinal beams which are arranged at a distance from one another and extend horizontally in the direction of sheet travel, to which a number of transverse lamellae made of a flat hollow profile are fastened next to one another, which are connected to a compressed air supply and one on their top Have row of air outlet openings.
Die Unteransprüchen enthalten bevorzugte, da besonders vorteilhafte Ausgestaltun¬ gen der Erfindung.The subclaims contain preferred, since particularly advantageous, configurations of the invention.
Kurze Beschreibung der ZeichnungBrief description of the drawing
Figur 1 zeigt in Seitenansicht eine Stapelvorrichtung mit der erfindungsgemäßen Hilfsstapelplattform.Figure 1 shows a side view of a stacking device with the auxiliary stacking platform according to the invention.
Figur 2 zeigt in perspektivischer, teilweise geschnittener Ansicht die Hilfsstapel¬ plattform.FIG. 2 shows the auxiliary stack platform in a perspective, partially sectioned view.
Figur 3 zeigt vergrößert den Ausschnitt X von Figur 2. Figur 4 zeigt einen Längsschnitt durch den Bereich der Einfahrspitze.FIG. 3 shows an enlarged section X from FIG. 2. Figure 4 shows a longitudinal section through the area of the entry tip.
Weg zur Ausführung der ErfindungWay of carrying out the invention
Die in Figur 1 gezeigte Vorrichtung dient zum Ablegen von geschuppt zugeförderten Papier- oder Kartonbögen 1 auf einen Stapel 2, der auf einer Palette 3 gebildet wird. Die Palette 3 liegt auf einer vertikal bewegbar im Gestell 4 der Stapelvorrichtung gelagerten Ablageplattform 5, die während des Stapeins kontinuierlich so abgesenkt wird, daß die Oberseite des Stapels 2 in einem konstant geringen Abstand zu der Zuförderebene 6 der Bögen 1 gehalten wird. Im Bereich des Stapels 2 sind die bekannten Stapelbildungselemente (Seitenschüttelbleche 7, Anschlagbretter 8) angeordnet.The device shown in FIG. 1 is used to deposit scaly paper or cardboard sheets 1 onto a stack 2 which is formed on a pallet 3. The pallet 3 lies on a vertically movable storage platform 5 in the rack 4 of the stacking device, which is continuously lowered during stacking in such a way that the top of the stack 2 is kept at a constant small distance from the feed plane 6 of the sheets 1. The known stack formation elements (side shaking plates 7, stop boards 8) are arranged in the region of the stack 2.
Für einen verlustlosen Stapelwechsel ohne Verminderung der Ablegegeschwindigkeit ist an der Einlaufseite eine in den Stapelbereich einfahrbare Hilfsstapelplattform 9 angeordnet, auf die gestapelt wird, während ein fertiger Stapel 2 abtransportiert wird. Damit die Hilfsstapelplattform 9 ohne Stauchung oder Beschädigung von Bögen 1 in den Stapel bewegt werden kann, wird zunächst von einer Trenneinrichtung 10 eine Lücke zwischen den Bogenhinterkanten gebildet. Zusätzlich wird der oberhalb von der Hilfsstapelplattform 9 befindliche Bogenpacken von zwei Klemmbalken mit jeweils einer Reihe zungenförmiger Klammerelemente 1 1 , 1 2 eingeklemmt und gehalten, während die Hilfsstapelplattform 9 in den Stapel 2 bewegt wird.For a lossless stack change without reducing the depositing speed, an auxiliary stacking platform 9, which can be moved into the stacking area, is arranged on the inlet side, onto which stacking takes place while a finished stack 2 is being transported away. So that the auxiliary stacking platform 9 can be moved into the stack without upsetting or damaging sheets 1, a gap between the trailing sheet edges is first formed by a separating device 10. In addition, the sheet pack located above the auxiliary stacking platform 9 is clamped and held by two clamping bars, each with a row of tongue-shaped clamp elements 11, 12, while the auxiliary stacking platform 9 is moved into the stack 2.
Die Hilfsstapelplattform 9 ist mittels eines Fahrantriebs 1 3 horizontal in den Stapelbe¬ reich einfahrbar und aus diesem zurückfahrbar in einem Schlitten 14 gelagert, der an den einlaufseitigen Ständern 1 5 des Gestells 4 aufgehängt ist und an dem auch die Klammerelemente 1 1 , 12 horizontal so gelagert sind, daß sie zwischen die Hinter- kanten der Bögen 1 im Stapel 2 bewegt werden können. Der Aufbau der Hilfsstapel¬ plattform 9 ist in den Figuren 2 bis 4 detaillierter dargestellt:The auxiliary stacking platform 9 can be moved horizontally into the stacking area by means of a travel drive 1 3 and can be moved back out of it in a slide 14 which is suspended on the upstream stands 15 of the frame 4 and on which the clamp elements 11, 12 also horizontally so are stored so that they can be moved between the rear edges of the sheets 1 in the stack 2. The structure of the auxiliary stack platform 9 is shown in more detail in FIGS. 2 to 4:
Die Hilfsstapelplattform 9 besteht aus zwei Längsträgern 1 6, 1 7 aus einem Hohlprofil mit rechteckigem Querschnitt, die im Schlitten 14 an beiden Längsseiten des Gestells außerhalb der maximalen Arbeitsbreite sich horizontal in Bogenlaufrichtung erstrek- kend und mittels des Fahrantriebs 1 3 horizontal bewegbar gelagert sind. Auf der Oberseite der Längsträger 1 6, 17 sind unmittelbar aufeinanderfolgend eine Reihe von Querlamellen 1 8 aus einem flachen Hohlprofil befestigt, die mit ihren offenenThe auxiliary stacking platform 9 consists of two longitudinal beams 1 6, 1 7 made of a hollow profile with a rectangular cross-section, which extends horizontally in the carriage 14 on both longitudinal sides of the frame outside the maximum working width in the carriage 14. kend and by means of the travel drive 1 3 horizontally movable. On the top of the longitudinal beams 1 6, 17, a series of transverse lamellae 1 8 are fastened in succession from a flat hollow profile, which with their open
Stirnseiten an Luftzuführungsrohre 1 9, 20 angeschlossen sind, die auf den Ober¬ seiten der Längsträger 16, 17 parallel zu diesen verlaufend befestigt und an eine Druckluftzufuhr angeschlossen sind. Die Luftzuführungsrohre 1 9, 20 bestehen aus einem zu den Lamellen 1 8 offenen U-Profil oder aus einem Vierkantrohr, das an der entsprechenden Seite geschlitzt ist.End faces are connected to air supply pipes 19, 20, which are mounted on the upper sides of the longitudinal beams 16, 17 and run parallel to them and are connected to a compressed air supply. The air supply pipes 1 9, 20 consist of a U-profile open to the fins 1 8 or of a square pipe which is slotted on the corresponding side.
Die Querlamellen 1 8 weisen eine (in Bogenlaufrichtung gemessene) Breite von 50 mm bis 1 50 mm, bevorzugt ca. 80 mm, auf, und ihre Höhe beträgt ca. 20 mm. An ihrer ebenen Oberseite weist jede Lamelle 1 8 über ihre Länge eine Reihe von düsenförmig ausgestalteten Luftaustrittsöffnungen 21 auf, die - wie in Figur 4 dargestellt - jeweils über ein Kugelventil 22 geöffnet und verschlossen werden können. Die Kugel 23 eines Kugelventils 22 sitzt in einem konisch in Richtung zur Oberseite zulaufenden Stutzen 24 mit seitlichen Lufteinlässen. Sie wird von einer Feder 25 in die Schließstellung gepreßt, in der ihr Umfang aus der Oberseite der Hilfs- Stapelplattform 9 herausragt. Beim Einfahren der Lamellen 1 8 in den Stapel 2 wird sie von dem Gewicht des oberen Teils des Stapels 2 nach unten gedrückt, so daß Druckluft durch die Austrittsöffnung 21 austritt.The transverse lamellas 18 have a width (measured in the direction of sheet travel) of 50 mm to 1550 mm, preferably approximately 80 mm, and their height is approximately 20 mm. On its flat upper side, each lamella 1 8 has a row of nozzle-shaped air outlet openings 21 over its length, which - as shown in FIG. 4 - can be opened and closed in each case by means of a ball valve 22. The ball 23 of a ball valve 22 is seated in a nozzle 24 which tapers conically towards the top and has side air inlets. It is pressed by a spring 25 into the closed position, in which its circumference protrudes from the top of the auxiliary stacking platform 9. When the slats 1 8 are moved into the stack 2, they are pressed down by the weight of the upper part of the stack 2, so that compressed air exits through the outlet opening 21.
An ihrer Oberseite sind die Lamellen 1 8 von einem dünnen Abdeckblech 26 abge- deckt, das an den Positionen der Luftaustrittsöffnungen 21 entsprechende ÖffnungenOn their upper side, the lamellae 18 are covered by a thin cover plate 26, which has openings corresponding to the positions of the air outlet openings 21
27 aufweist. Das Abdeckblech 26 bildet an der Einfahrseite eine spitze Kante 28, die ein problemloses Einfahren zwischen die Bogenhinterkanten im Stapel 2 ermöglicht. Es ist bevorzugt auf seiner Oberseite reibungsarm, z.B. mit PTFE, beschichtet. Die Abdeckung der Lamellen 1 8 hat den Vorteil, daß sich beim Einfahren in den Stapel 2 der Luftkisseneffekt vergrößert, der die Reibung so verringert, daß keine Stauchun¬ gen oder Verschiebungen von Bögen 1 im Stapel 2 auftreten.27 has. The cover plate 26 forms a pointed edge 28 on the entry side, which enables problem-free entry between the trailing edges of the sheet in the stack 2. It is preferably low-friction on its top, e.g. coated with PTFE. The covering of the lamellae 1 8 has the advantage that when entering the stack 2 the air cushion effect increases, which reduces the friction so that no upsetting or displacements of sheets 1 occur in the stack 2.
Die Stapelvorrichtung nach Figur 1 arbeitet wie folgt: Während des Stapeins wird die Oberseite des Stapels 2 durch entsprechendes Absenken der Ablageplattform 5 auf einer konstanten Höhe unterhalb der Zufördere- bene 6 gehalten. Ist die vorgewählte Anzahl der Bögen gestapelt, fährt zunächst dasThe stacking device according to FIG. 1 works as follows: During stacking, the upper side of the stack 2 is kept at a constant height below the feed plane 6 by correspondingly lowering the depositing platform 5. If the preselected number of sheets is stacked, this runs first
Trennelement 1 0 in Höhe der Zuförderebene zwischen die Bogenhinterkanten ein. Es bewegt sich anschließend mit dem Stapel 2 nach unten, bis die Höhe der unteren Klammerelemente 12 erreicht ist. Dort hält es an, so daß sich durch weiteres Ab¬ senken des Stapels 2 eine Lücke unterhalb des Trennelements 1 0 bildet. In diese Lücke fahren die Klammerelemente 1 2 ein. Gleichzeitig beginnt sich der Schlitten 14 synchron mit dem Stapel 2 nach unten zu bewegen.Separating element 1 0 at the level of the feed plane between the sheet trailing edges. It then moves downwards with the stack 2 until the height of the lower clamp elements 12 is reached. It stops there, so that a further lowering of the stack 2 forms a gap below the separating element 10. The clamp elements 1 2 move into this gap. At the same time, the carriage 14 begins to move downwards in synchronization with the stack 2.
Das Trennelement 10 wird danach wieder aus dem Stapel 2 bewegt und fährt erneut nach oben, um auf entsprechende Weise eine Lücke für die oberen Klammerelemente 1 1 zu bilden. Nachdem diese zwischen die Bogenhinterkanten eingefahren sind, wird ein Bogenpaket zwischen den Klammerelementen 1 1 , 12 festgeklemmt. Durch kurzzeitiges beschleunigtes Absenken des Stapels 2 bildet sich nun unterhalb der unteren Klammerelemente 1 2 eine Lücke, in die die Hilfsstapelplattform 9 eingefahren wird. Beim Einfahren drückt das Gewicht des Stapels 2 die Kugeln 23 der Ventile 22 in dem von Bögen 1 abgedeckten Bereich nach unten und öffnet so die Ventile 22. Es tritt Druckluft aus, die über die Rohre 1 9, 20 den Lamellen 1 8 zugeführt wird. Die austretende Druckluft erzeugt ein die Reibung zwischen dem untersten Bogen 1 des aufliegenden Stapelteils und der Oberseite der Hilfsstapelplattform 9 minimierendes Luftkissen.The separating element 10 is then moved out of the stack 2 again and moves up again in order to form a gap for the upper clamp elements 11 in a corresponding manner. After these are retracted between the trailing edges of the sheet, a sheet packet is clamped between the clamp elements 11, 12. By briefly accelerating the lowering of the stack 2, a gap is formed below the lower clamp elements 1 2, into which the auxiliary stack platform 9 is inserted. When moving in, the weight of the stack 2 presses the balls 23 of the valves 22 downward in the region covered by arches 1 and thus opens the valves 22. Compressed air emerges which is fed to the fins 1 8 via the pipes 19, 20. The escaping compressed air creates an air cushion which minimizes the friction between the lowermost sheet 1 of the stack part lying thereon and the upper side of the auxiliary stacking platform 9.
Die Hilfsstapelplattform 9 trägt nun den oberen Stapelteil, während der sich unter ihr befindliche, fertige Stapel 2 auf den Boden abgesenkt und abtransportiert wird. Nach Auflegen einer neuen, leeren Palette 3 wird die Ablageplattform 5 angehoben, bis sich die neue Palette 3 unterhalb der Hilfsstapelplattform 9 befindet. Falls bei der Bewegung der Palette 3 an die Hilfsstapelplattform 9 Beschädigungen, z. B. durch hochstehende Nägel, zu befürchten sind, wird die Unterseite der Lamellen 1 8 von einem dünnen Schutzblech abgedeckt.The auxiliary stacking platform 9 now carries the upper part of the stack, while the finished stack 2 located below it is lowered onto the floor and transported away. After placing a new, empty pallet 3, the storage platform 5 is raised until the new pallet 3 is below the auxiliary stacking platform 9. If during the movement of the pallet 3 to the auxiliary stacking platform 9 damage, e.g. B. fear from upstanding nails, the underside of the slats 1 8 is covered by a thin mudguard.
Anschließend wird die Hilfsstapelplattform 9 aus dem Stapelbereich zurückgefahren und übergibt dabei den auf ihr gebildeten Teilstapel an die Palette 3. Dabei schließen sich die Ventile 22 selbstätig. Bis zum nächsten Stapelwechsel werden die Bögen 1 wieder direkt auf die Palette 3 gestapelt.The auxiliary stacking platform 9 is then moved back out of the stacking area and in the process transfers the partial stack formed on it to the pallet 3 the valves 22 automatically. Until the next stack change, the sheets 1 are stacked directly on the pallet 3.
Der Aufbau der Hilfsstapelplattform 9 aus einzelnen Lamellen 1 8 gewährleistet eine große Stabilität bei relativ geringem Gewicht auch bei großen Arbeitsbreiten, z. B. mehr als 2000 mm. Es tritt keine Durchbiegung aufgrund des Eigengewichts der Hilfsstapelplattform 9 auf, so daß die für das Einfahren erforderliche Lücke zwischen den Bogenhinterkanten sehr klein gehalten werden kann. Größere Lücken haben denThe construction of the auxiliary stacking platform 9 from individual slats 1 8 ensures great stability with a relatively low weight even with large working widths, eg. B. more than 2000 mm. There is no deflection due to the dead weight of the auxiliary stacking platform 9, so that the gap between the trailing edge of the sheet required for retraction can be kept very small. There are bigger gaps
Nachteil, daß sich der oberhalb der Hilfsstapelplattform 9 befindliche Stapelteil bei der Übergabe auf die Palette 3 etwas versetzt. Weiterhin wird durch den modul¬ artigen Aufbau der Hilfsstapelplattform 9 aus Lamellen 1 8 eine konstruktiv einfache Anpassung an verschiedene Stapellängen ermöglicht. Disadvantage that the stack part located above the auxiliary stacking platform 9 is displaced somewhat when transferred to the pallet 3. Furthermore, the modular construction of the auxiliary stacking platform 9 made of lamellas 1 8 enables a structurally simple adaptation to different stack lengths.

Claims

PATENTANS PRÜ CHE PATENTANS PRÜCHE
1. Vorrichtung zum Stapeln von Bögen (1), insbesondere von geschuppt zugeförderten1. A device for stacking sheets (1), in particular scaly fed
Papierbögen, mit einer vertikal bewegbaren Ablageplattform (5) und einer mittels eines Fahr¬ antriebs (13) horizontal in den Stapelbereich einfahrbaren Hilfsstapelplattform (9), d ad urch ge kennzeichnet, daß die Hilfsstapelplattform (9) zwei mit Abstand voneinander angeordnete, sich horizontal in Bogenlaufrichtung erstreckendeSheets of paper, with a vertically movable storage platform (5) and an auxiliary stacking platform (9) which can be moved horizontally into the stacking area by means of a travel drive (13), which indicates that the auxiliary stacking platform (9) has two spaced-apart, horizontal ones extending in the direction of sheet travel
Längsträger (16, 17) aufweist, an denen eine Reihe von Querlamellen (18) aus einem flachen Hohlprofil nebeneinander befestigt sind, die an eine Druckluftzufuhr ange¬ schlossen sind und an ihrer Oberseite eine Reihe von Luftaustrittsöffnungen (21) auf¬ weisen.Has longitudinal beams (16, 17), on which a row of transverse lamellae (18) made of a flat hollow profile are fastened next to one another, which are connected to a compressed air supply and have a row of air outlet openings (21) on their upper side.
2.Second
Vorrichtung nach Anspruch 1, d adurch gekennzei chnet, daß die Lamellen auf ihrer Oberseite von einem dünnen Abdeckblech (26) abgedeckt sind, das sich mit den Luftaustrittsöffnungen (21) der Querlamellen (18) deckende Öff- nungen (27) aufweist und an der Einfahrseite eine spitze Kante (28) bildet.Apparatus according to claim 1, characterized by the fact that the lamellae are covered on their upper side by a thin cover plate (26) which has openings (27) covering the air outlet openings (21) of the transverse lamellae (18) and on which Entry side forms a pointed edge (28).
3.Third
Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzei chnet, daß die in Bogenlaufrichtung gemessene Breite der Querlamellen 50- 150 mm beträgt.Device according to claim 1 or 2, characterized in that the width of the transverse lamellae measured in the direction of sheet travel is 50-150 mm.
4.4th
Vorrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeich¬ net, daß die Druckluftzufuhr in die Querlamellen (18) über Rohre (19, 20) erfolgt, die parallel zu den Längsträgern (16, 17) verlaufend an diesen befestigt sind. Device according to one of claims 1 to 3, characterized gekennzeich¬ net that the compressed air supply in the transverse lamellae (18) via pipes (19, 20) which are parallel to the longitudinal beams (16, 17) attached to them.
5.5th
Vorrichtung nach einem der Ansprüche 1 bis 4, dadurch ge kennzeich n e t, daß die Luftaustrittsöffnungen (21) jeweils mit einem Kugelventil (22) verschlossen sind, das beim Einfahren in den Stapel (2) durch das Gewicht des oberen Stapelteils selbstätig geöffnet wird. Device according to one of claims 1 to 4, characterized in that the air outlet openings (21) are each closed with a ball valve (22) which is automatically opened by the weight of the upper stack part when entering the stack (2).
PCT/EP1995/000069 1994-03-08 1995-01-10 Paper sheet stacker WO1995024354A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE59501043T DE59501043D1 (en) 1994-03-08 1995-01-10 DEVICE FOR STACKING BOWS
EP95906321A EP0748290B1 (en) 1994-03-08 1995-01-10 Paper sheet stacker

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEP4407584.7 1994-03-08
DE4407584A DE4407584C2 (en) 1994-03-08 1994-03-08 Device for stacking sheets

Publications (1)

Publication Number Publication Date
WO1995024354A1 true WO1995024354A1 (en) 1995-09-14

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Country Link
EP (1) EP0748290B1 (en)
JP (1) JP2716590B2 (en)
DE (2) DE4407584C2 (en)
ES (1) ES2111391T3 (en)
WO (1) WO1995024354A1 (en)

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Publication number Priority date Publication date Assignee Title
ES2125784A1 (en) * 1994-11-11 1999-03-01 Jangenberg Papiertechnik Gmbh System for stacking sheets on pallets

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Publication number Priority date Publication date Assignee Title
DE29818894U1 (en) * 1998-10-23 2000-03-09 MAN Roland Druckmaschinen AG, 63075 Offenbach Device for moving a stack of sheets horizontally
DE102021105729A1 (en) 2021-03-10 2022-09-15 Koenig & Bauer Ag Delivery for a sheet processing machine and method for changing piles in a delivery of a sheet processing machine
DE102021005218A1 (en) * 2021-10-19 2023-04-20 Giesecke+Devrient Currency Technology Gmbh Sheet material holder for holding sheet material

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DE2736832A1 (en) * 1977-08-16 1979-03-15 Mohn Gmbh Reinhard Paper sheet stacking system - uses intermediate pallet to forming auxiliary stack during changeover after which stack is raised for intermediate pallet removal
EP0535360A2 (en) * 1991-09-18 1993-04-07 M.A.N.-ROLAND Druckmaschinen Aktiengesellschaft Sheet delivery

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US3140091A (en) * 1961-06-21 1964-07-07 Harris Intertype Corp Printing press delivery
DE3711584A1 (en) * 1987-04-06 1988-10-27 Will E C H Gmbh & Co DEVICE FOR CROSS-RECEIVING STACKS OF LEAF-SHAPED MATERIAL
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Publication number Priority date Publication date Assignee Title
DE2736832A1 (en) * 1977-08-16 1979-03-15 Mohn Gmbh Reinhard Paper sheet stacking system - uses intermediate pallet to forming auxiliary stack during changeover after which stack is raised for intermediate pallet removal
EP0535360A2 (en) * 1991-09-18 1993-04-07 M.A.N.-ROLAND Druckmaschinen Aktiengesellschaft Sheet delivery

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2125784A1 (en) * 1994-11-11 1999-03-01 Jangenberg Papiertechnik Gmbh System for stacking sheets on pallets

Also Published As

Publication number Publication date
DE59501043D1 (en) 1998-01-08
EP0748290B1 (en) 1997-11-26
EP0748290A1 (en) 1996-12-18
DE4407584A1 (en) 1995-09-14
ES2111391T3 (en) 1998-03-01
DE4407584C2 (en) 2002-09-26
JP2716590B2 (en) 1998-02-18
JPH09503473A (en) 1997-04-08

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