EP0884256B1 - Sheet feeding apparatus - Google Patents

Sheet feeding apparatus Download PDF

Info

Publication number
EP0884256B1
EP0884256B1 EP98110160A EP98110160A EP0884256B1 EP 0884256 B1 EP0884256 B1 EP 0884256B1 EP 98110160 A EP98110160 A EP 98110160A EP 98110160 A EP98110160 A EP 98110160A EP 0884256 B1 EP0884256 B1 EP 0884256B1
Authority
EP
European Patent Office
Prior art keywords
roller
feed
sheet
feeding device
feed rollers
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP98110160A
Other languages
German (de)
French (fr)
Other versions
EP0884256A1 (en
Inventor
Herbert Herrmann
Stefan Hartmann
Knut Wilde
Peter Eilitz
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.)
Manroland AG
Original Assignee
MAN Roland Druckmaschinen AG
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=7832206&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0884256(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by MAN Roland Druckmaschinen AG filed Critical MAN Roland Druckmaschinen AG
Publication of EP0884256A1 publication Critical patent/EP0884256A1/en
Application granted granted Critical
Publication of EP0884256B1 publication Critical patent/EP0884256B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H5/00Feeding articles separated from piles; Feeding articles to machines
    • B65H5/02Feeding articles separated from piles; Feeding articles to machines by belts or chains, e.g. between belts or chains
    • B65H5/021Feeding articles separated from piles; Feeding articles to machines by belts or chains, e.g. between belts or chains by belts
    • B65H5/025Feeding articles separated from piles; Feeding articles to machines by belts or chains, e.g. between belts or chains by belts between belts and rotary means, e.g. rollers, drums, cylinders or balls, forming a transport nip

Definitions

  • a smaller conveying path to be overcome not only leads to less Loads on the feed table organs, but above all, it enables noticeably safer handling the sheet to be conveyed with regard to an increased Cycle speed and low substrate grammages.
  • This accompanied by significantly less underblowing of the feeding organs from the stack of sheets lifted thus leads in addition to saving energy for the organs feeding the bow also to a significantly reduced energy requirement for the Blas Kunststoffaufleung.
  • the one or more drive belts can have an approximately triangular shape Course extending around a third, in the area under the conveyor rollers and the conveyor roller located be guided.
  • the conveyor roller is a rotatably driven roller and conveyor rollers and idler pulley freely rotatable, so can of the Conveyor roller all drive belts are driven together.
  • the correct detection and conveyance of the sheets is ensured that two or more conveyor rollers are spaced apart are and a drive belt is guided around each conveyor roller.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Delivering By Means Of Belts And Rollers (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)

Description

Die Erfindung bezieht sich auf eine Bogenzuführeinrichtung zum taktweisen Zuführen vereinzelter Bogen von einem Bogenanleger zu einer Bogen verarbeitenden Maschine oder einer Weiterfördereinrichtung nach dem Oberbegriff des Anspruchs 1.The invention relates to a sheet feeder for intermittent feeding of individual sheets from one sheet feeder to another Sheet processing machine or a conveyor the preamble of claim 1.

Bei derartigen Bogenzuführeinrichtungen ist es bekannt, daß in Förderrichtung hinter dem Bogenstapel übereinander angeordnet ein Paar Förderwalzen oder Abzugsrollen angeordnet sind, zwischen die von Transportsaugern die Bogen mit ihrer Vorderkante zugeführt werden. Die Förderwalzen oder Abzugsrollen erfassen zwischen sich die Bogen und fördern sie durch ihre Drehung weiter. Um ein sicheres und verziehungsfreies Erfassen und Transportieren gewährleisten zu können, besitzen Förderwalzen und Abzugsrollen einen relativ großen Durchmesser. Dies bedingt einen entsprechend großen Förderweg durch die Transportsauger, bis der jeweils geförderte Bogen zwischen den Förderwalzen oder Abzugsrollen erfaßt werden kann.
Dieser große Förderweg ist auch von den den Bogen den Förderwalzen oder Abzugsrollen zuführenden Organen, im gegebenen Fall einem sogenannten Saugkopf, zu bewältigen. Bei den möglichst hoch anzustrebenden Taktgeschwindigkeiten sind auch die Bewegungen der die Bogen zuführenden Organe des Saugkopfes sehr schnell, was z.B. bei den Schleppsaugern hohe Beschleunigungen und Abbremsungen zur Bewegungsumkehr bedingt. Damit ist aber die Belastung, der Verschleiß und die Defektanfälligkeit ebenfalls hoch.
Ist, wie allgemein üblich, auch noch eine Bogenklappe zwischen den Förderwalzen oder Abzugsrollen und dem Bogenanleger vorhanden, so ist der Abstand der Förderwalzen oder Abzugsrollen zum Bogenstapel und damit der von den den Bogen zuführenden Organen des Bogenanlegers zu überwindende Förderweg noch größer, was auch die Belastung dieser Organe noch weiter erhöht.
In such sheet feeders, it is known that a pair of conveyor rollers or take-off rollers are arranged one above the other in the conveying direction behind the sheet stack, between which the sheets are fed with their leading edge by transport suction devices. The conveyor rollers or take-off rollers grasp the sheets between them and further convey them by their rotation. To ensure safe and distortion-free gripping and transport, conveyor rollers and take-off rollers have a relatively large diameter. This requires a correspondingly large conveying path through the transport suction devices until the sheet conveyed in each case can be grasped between the conveying rollers or take-off rollers.
This large conveying path can also be mastered by the organs that feed the sheets to the conveying rollers or take-off rollers, in a given case a so-called suction head. With the cycle speeds to be aimed for as high as possible, the movements of the organs of the suction head that feed the sheets are also very fast, which, for example, requires high accelerations and decelerations for the reversal of movement in the case of the drag vacuums. However, the load, wear and tear and susceptibility to defects are also high.
If, as is generally the case, there is also a sheet flap between the feed rollers or take-off rollers and the sheet feeder, the distance between the feed rollers or take-off rollers and the sheet stack and thus the conveying path to be overcome by the sheet feeder organs is even greater, which also Stress on these organs increased even further.

Eine Vorrichtung der genannten Art ist in der GB A 768,884 beschrieben. Die Veröffentlichung betrifft Verbesserungen an oder in Verbindung mit einem Bogenanleger. Vorgesehen ist ein Bogenanleger und ein Bändertisch zur Weiterförderung von vom Bogenanleger vereinzelt angelieferten Bogen. Der Bändertisch weist zwei Walzen auf, um die Transportbänder umlaufen. Oberhalb der Walze, die direkt neben dem Bogenanleger und damit diesem am nächsten liegt, sind zwei Taktrollen angeordnet, mittels derer die Bogen im Maschinentakt auf den Transportbändern weitergefördert werden.A device of the type mentioned is described in GB A 768,884. The publication relates to improvements in or in connection with a sheet feeder. A sheet feeder and a are provided Belt table for further conveying from the sheet feeder delivered bow. The belt table has two rollers around which Convey conveyor belts. Above the roller that is right next to the Sheet feeder and thus closest to it are two cycle rolls arranged, by means of which the sheets on the machine cycle Conveyor belts are conveyed further.

Aufgabe der Erfindung ist es daher eine Bogenzuführeinrichtung der eingangs genannten Art zu schaffen, durch die die Belastungen, der die Bogen vom Bogenanleger den Rollen zuführenden Organe verringert werden und gleichzeitig die Bogenhandhabung wesentlich verbessert wird.The object of the invention is therefore a sheet feeder to create the kind mentioned at the outset, through which the loads that the Bow from the sheet feeder to the roll-feeding organs reduced are and the sheet handling significantly improved becomes.

Diese Aufgabe wird erfindungsgemäß mit den Merkmalen des Anspruchs 1 gelöst.This object is achieved with the features of the claim 1 solved.

Hierbei kann die erste Rolle von mehreren Förderrollen geringen Durchmessers gebildet sein, die nahe der Vorderkante des Bogenstapels des Bogenanlegers drehbar angeordnet sind und um die ein oder mehrere endlose Triebbänder geführt sind, die ausgehend von den Förderrollen sich etwa in Förderrichtung erstrecken und eine im Abstand von den Förderrollen angeordnete Förderwalze umschlingen. Weiterhin hat eine obere weitere Rolle einen demgegenüber erheblich größeren Durchmesser. Damit ist der die vom Bogenanleger zugeführten Bogen erfassende Scheitelbereich der ersten und der weiteren Rolle nahe der oberen Stapelvorderkante des vom Bogenanleger getragenen Bogenstapels, so daß der von den die Bogen zuführenden Organen des Bogenanlegers zurückzulegende Weg bis zur Erfassung durch die erste Rolle gering ist. Da der geförderte Bogen von der oberen weiteren Rolle auf die Triebbänder gedrückt wird, wird der Bogen auch sicher und verziehungsfrei erfaßt und weitertransportiert. Here, the first role of several conveyor rollers can be small Be formed in diameter near the leading edge of the sheet stack of the sheet feeder are rotatably arranged and around the one or more endless conveyor belts are guided, starting from the conveyor rollers extend approximately in the conveying direction and one at a distance from the Wrap conveyor rollers arranged around conveyor rollers. Furthermore has one the other top role is a much larger one Diameter. This is the sheet fed by the sheet feeder detecting vertex area of the first and the further role near the upper stack front edge of the one carried by the sheet feeder Sheet stack, so that of the organs feeding the sheets of the Sheet feeder path to be covered by the first Role is small. Because the funded sheet from the upper roll is pressed on the drive belts, the bow is also safe and recorded without distortion and transported further.

Ein geringerer zu überwindender Förderweg führt nicht nur zu weniger Belastungen der den Bogen zuführenden Organe des Anlegetischs, sondern ermöglicht auch vor allem eine merklich sicherere Handhabung der zu fördernden Bogen hinsichtlich einer gesteigerten Taktgeschwindigkeit sowie niederer Bedruckstoffgrammaturen. Dies einhergehend mit erheblich geringerem Unterblasen des von den zuführenden Organen vom Bogenstapel abgehobenen Bogens führt somit neben der Energieeinsparung für die den Bogen zuführenden Organe auch zu einem erheblich verminderten Energiebedarf für die Blasluftaufbereitung.A smaller conveying path to be overcome not only leads to less Loads on the feed table organs, but above all, it enables noticeably safer handling the sheet to be conveyed with regard to an increased Cycle speed and low substrate grammages. This accompanied by significantly less underblowing of the feeding organs from the stack of sheets lifted thus leads in addition to saving energy for the organs feeding the bow also to a significantly reduced energy requirement for the Blasluftaufbereitung.

Die geringere Belastung der zuführenden Organe und die günstige Beeinflussung physikalischer Abläufe ermöglicht dementsprechend auch eine Erhöhung der Taktfrequenz und damit der Leistung des Bogenanlegers.The lower burden on the feeding organs and the cheap Accordingly, influencing physical processes also enables an increase in the clock frequency and thus the performance of the Sheet feeder.

Weist die weitere Rolle einen wesentlich größeren Durchmesser auf als die Förderrollen, so wird die Sicherheit des korrekten Erfassens des Bogens noch weiter erhöht. Da über dem vorderen Bereich des Bogenstapels Raum vorhanden ist, kann die weitere Rolle problemlos mit einem Teil ihres Durchmessers über den vorderen Bereich des Bogenstapels ragen. If the further roll has a much larger diameter than the conveyor rollers, so the security of the correct detection of the Bow increased even further. Because over the front of the Sheet stack space is available, the additional roll can easily with part of their diameter over the front area of the Protruding sheet stack.

Das oder die Triebbänder können sich in einem etwa dreieckförmigen Verlauf erstreckend um eine dritte, im Bereich unter den Förderrollen und der Förderwalze befindlichen Rolle geführt sein.The one or more drive belts can have an approximately triangular shape Course extending around a third, in the area under the conveyor rollers and the conveyor roller located be guided.

Vorzugsweise ist dabei die dritte Rolle eine Spannrolle, so daß die Triebbänder immer in ihrer optimalen Spannung gehalten werden.Preferably, the third roller is a tension roller, so that the Drive belts are always kept in their optimal tension.

Ist die Förderwalze eine drehbar angetriebene Walze und Förderrollen und Spannrolle frei drehbar gelagerte Rollen, so können von der Förderwalze gemeinsam alle Triebbänder angetrieben werden.The conveyor roller is a rotatably driven roller and conveyor rollers and idler pulley freely rotatable, so can of the Conveyor roller all drive belts are driven together.

Ein schuppenartiger Bogenstrom wird auf einfache Weise dadurch erzeugt, daß die über den Förderrollen angeordnete weitere Rolle eine Taktrolle ist, die im Arbeitstakt der Bogenzuführeinrichtung auf die Förderrollen absenkbar und abhebbar ist.A scale-like arc stream is easily created generates that the arranged above the conveyor rollers another role Clock roll is the one in the working cycle of the sheet feeder Conveyor rollers can be lowered and raised.

Das korrekte Erfassen und Fördern der Bogen wird dadurch gesichert, daß zwei oder mehrere Förderrollen im Abstand zueinander angeordnet sind und um jede Förderrolle ein Triebband geführt ist.The correct detection and conveyance of the sheets is ensured that two or more conveyor rollers are spaced apart are and a drive belt is guided around each conveyor roller.

Ist dabei der Abstand zwischen zwei Förderrollen kleiner als die geringste Breite des zu verarbeitenden Bogens, so können durch die Bogenzuführeinrichtung ohne Umbauerfordernis alle üblicherweise zu verarbeitenden Bogengrößen verarbeitet werden.If the distance between two conveyor rollers is smaller than the smallest Width of the sheet to be processed, so can through the sheet feeder without Conversion requirement all commonly to be processed Sheet sizes are processed.

In einfacher Ausbildung können die Förderrollen auf einer gemeinsamen Achse drehbar gelagert sein.In simple training, the conveyor rollers on a common axis be rotatably mounted.

Um ein Verschieben der obersten Bogen des Bogenstapels in Förderrichtung zu verhindern, kann zwischen den Förderrollen und/oder neben den äußeren Förderrollen eine im Takt der Bogenzuführeinrichtung zwischen einer senkrecht nach oben gerichteten, an der Bogenstapelvorderkante anliegende Position und einer in Förderrichtung geneigten Position um eine Schwenkachse schwenkbar antreibbare Bogenklappe angeordnet sein.To move the top sheet of the sheet stack To prevent in the direction of conveyance can be between the conveyor rollers and / or in addition to the outer conveyor rollers in time with the sheet feeder between a vertical upward, on the leading edge of the sheet stack adjacent position and one in the conveying direction inclined position drivable about a pivot axis Bow flap can be arranged.

Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und wird im folgenden näher beschrieben. Die einzige Figur der Zeichnung zeigt eine Bogenzuführeinrichtung in der Seitenansicht.An embodiment of the invention is in the drawing shown and is described in more detail below. The only figure in the drawing shows a sheet feeder in the side view.

Die in der Figur dargestellte Bogenzuführeinrichtung weist eine unmittelbar in Förderrichtung 1 hinter einem Bogenstapel 2 um eine Achse 3 frei drehbar gelagerte Förderrolle 4 geringen Durchmessers auf. Der Scheitel der Förderrolle 4 befindet sich unmittelbar oberhalb des Bogenstapels 2, der in einem nicht dargestellten Bogenanleger gelagert ist und von diesem mit seinem obersten Bogen 5 immer unmittelbar unterhalb der Scheitelhöhe der Förderrolle 4 gehalten wird.The sheet feeder shown in the figure has one directly in the conveying direction 1 behind one Sheet stack 2 freely rotatable about an axis 3 Conveyor roller 4 of small diameter. The crown the conveyor roller 4 is located immediately above the sheet stack 2, which in a not shown Sheet feeder is stored and from this with his top arch 5 always immediately below the apex height the conveyor roller 4 is held.

In Förderrichtung 1 im Abstand zur Förderrolle 4 ist mit dem Scheitel auf gleicher Höhe wie der Scheitel der Förderrolle 4 eine Förderwalze 6 erheblich größeren Durchmessers als die Förderrolle 4 angeordnet, wobei die Förderwalze 6 durch eine nicht dargestellte Antriebseinrichtung drehbar antreibbar ist.Is in the conveying direction 1 at a distance from the conveyor roller 4 with the crown at the same level as the crown of the Conveyor roller 4 a conveyor roller 6 significantly larger Diameter arranged as the conveyor roller 4, wherein the conveyor roller 6 by a drive device, not shown is rotatably driven.

Im deutlichen Abstand unterhalb von Förderrolle 4 und Förderwalze 6 ist eine Spannrolle 7 angeordnet, die frei drehbar gelagert ist und durch die die Spannung eines endlos Förderrolle 4, Förderwalze 6 und Spannrolle 7 umschließenden Triebbandes 8 bestimmt wird.At a clear distance below conveyor roller 4 and Conveyor roller 6, a tension roller 7 is arranged is freely rotatable and through which the tension an endless conveyor roller 4, conveyor roller 6 and tension roller 7 surrounding drive belt 8 is determined.

Durch den Drehantrieb der Förderwalze 6 wird das Triebband 8 derart angetrieben, daß es sich in dem Bereich zwischen Förderrollen 4 und Förderwalze 6 in Förderrichtung 1 bewegt.The drive belt becomes by the rotary drive of the conveyor roller 6 8 driven such that it is in the area between conveyor rollers 4 and conveyor roller 6 in the conveying direction 1 moves.

Senkrecht über dem Zentrum der Förderrolle 4 ist eine frei drehbar gelagerte Taktrolle 9 angeordnet, die im Arbeitstakt der Bogenzuführeinrichtung senkrecht auf die Förderrolle 4 absenkbar und von dieser anhebbar angetrieben ist. Die Taktrolle 9 besitzt einen wesentlich größeren Durchmesser als die Förderrolle 4 und ragt mit einem Teil ihres Umfangs entgegen der Förderrichtung 1 über den Bogenstapel 2.Perpendicular to the center of the conveyor roller 4 is one Freely rotatably mounted clock roller 9 arranged in Vertical cycle of the sheet feeder the conveyor roller 4 can be lowered and driven by this is. The clock roller 9 has one larger diameter than the conveyor roller 4 and protrudes with a part of its circumference against the conveying direction 1 over the sheet stack 2.

Der Bogenanleger besitzt einen ebenfalls nicht dargestellten Saugkopf mit Schleppsaugern, durch die ein mittels Hubsaugern vom Bogenstapel 2 angehobener Bogen 10 um einen Weg "S" in Förderrichtung 1 bewegt wird. Dabei wird der Bogen 10 mit seiner Vorderkante zwischen die Taktrollen 9 und die von dem Triebband 8 umschlungene Förderrolle 4 eingeführt und bei abgesenkter Taktrolle 9 von Taktrolle 9 und Triebband 8 erfaßt und in Förderrichtung 1 z.B. zu einem Anlegetisch weitertransportiert.The sheet feeder also has one not shown Suction head with drag vacuums through which a Sheet lifted from sheet stack 2 by means of suction cups 10 is moved by a path "S" in the conveying direction 1. The sheet 10 is with its leading edge between the clock rollers 9 and those wrapped by the drive belt 8 Conveyor roller 4 inserted and with the clock roller lowered 9 captured by clock roller 9 and drive belt 8 and in Direction of conveyance 1 e.g. transported to a landing table.

Eine um eine Schwenkachse 11 im Arbeitstakt der Bogenfördereinrichtung aus einer senkrecht nach oben gerichteten in eine in Förderrichtung 1 geneigte Stellung schwenkbar antreibbare Bogenklappe 12 ist seitlich der Förderrolle 4 angeordnet und verhindert bei der Bogenerfassung und dem Bogenanhub durch die Hubsauger in ihrer senkrechten Stellung, daß die folgenden Bogen des Bogenstapels 2 sich in Förderrichtung 1 verschieben können. One about a pivot axis 11 in the working cycle of the sheet conveying device from a vertically upward in a position inclined in the conveying direction 1 pivotable drivable bow flap 12 is the side Conveyor roller 4 arranged and prevented during sheet detection and the sheet lift by the suction cups in its vertical position that the following arch of the Sheet stack 2 move in the conveying direction 1 can.

Während der Zuführbewegung des angehobenen Bogens 10 zwischen Triebband 8 und Taktrolle 9 schwenkt die Bogenklappe 12 um ein bestimmtes Maß in Förderrichtung 1 und bildet eine Einführschräge, an der die Vorderkante des Bogens 10 zur Erfassung durch Triebband 8 und Taktrolle 9 entlanggleiten kann.During the feeding movement of the raised sheet 10 the bow flap pivots between the drive belt 8 and the timing roller 9 12 by a certain amount in the conveying direction 1 and forms an insertion slope on the front edge of the bow 10 for detection by the conveyor belt 8 and clock roller 9 can slide along.

Durch den geringen Durchmesser der Förderrolle 4 und deren dichten Anordnung am Bogenstapel 2 ist der Weg "S" sehr gering, sodaß die Schleppsauger selbst bei hoher Taktfrequenz sich mit relativ geringer Geschwindigkeit bewegen können. Due to the small diameter of the conveyor roller 4 and their close arrangement on the sheet stack 2 is the way "S" very low, so that the vacuum cleaner itself high clock frequency itself with relatively low speed can move.

Bezugszeichenreference numeral

11
Förderrichtungconveying direction
22
Bogenstapelsheet pile
33
Achseaxis
44
Förderrolleconveyor roller
55
oberster Bogentop bow
66
Förderwalzeconveyor roller
77
Spannrolleidler
88th
Triebbanddrive belt
99
Taktrollesynchronizing roller
1010
Bogenarc
1111
Schwenkachseswivel axis
1212
Bogenklappebow flap

Claims (9)

  1. Sheet feeding device for cyclical feeding of separated sheets from a sheet feeder to a sheet processing machine or a further feeding device, particularly a belt table, with a first roller (4) arranged in the feed direction behind the sheet pile (2) driveable rotatably about an axis extending transverse to the feed direction and a further roller (9) arranged above the first roller and mounted rotatably about an axis parallel to the axis of the first roller (4), wherein the sheets (5, 10) fed from the sheet feeder can be grasped between the first and the further roller (9) at their front edge region and can be further transported, wherein, furthermore, the first roller is constructed as a feed roller (4) of smaller diameter than that of the further roller (9), characterised in that one or several small feed rollers (4) are provided, the diameter of which is substantially smaller than that of the further roller (9) and that the feed rollers (4) are so arranged prior mounted rotatably adjacent the front edge of the sheet pile (2) of the sheet feeder that the path to be traversed by the elements of the feeder feeding the sheets (5, 10) up to the grasping by the first (4) and further roller (9) is small, that around the feed rollers (4), one or several endless drive belts (8) are guided which extend starting from the feed roller or feed rollers (4) substantially in the feed direction (1) and which loop round the feed drum (6) arranged in the feed direction (1) at a distance to the feed rollers (4), and that the feed drum (6) has a substantially larger diameter than the feed rollers (4).
  2. Sheet feeding device according to Claim 1, characterised in that the drive belt or drive belts (8) are guided in a substantially triangular run extending around a third roller located in the region below the feed rollers (4) and the feed drum (6).
  3. Sheet feeding device according to Claim 2, characterised in that the third roller is a tensioning roller (7).
  4. Sheet feeding device according to one of the preceding Claims, characterised in that the feed drum (6) is a rotatably driveable drum and feed rollers (4) and tensioning roller (7) are freely rotatably mounted rollers.
  5. Sheet feeding device according to one of the preceding Claims, characterised in that the further roller arranged above the feed rollers (4) is a biased timing roller (9) which can be lowered and lifted in the working rhythm of the sheet feeding device on to and from the feed rollers (4).
  6. Sheet feeding device according to one of the preceding Claims, characterised in that two or several feed rollers (4) are arranged at distances relative to one another and a drive belt (8) is guided around each feed roller (4).
  7. Sheet feeding device according to Claim 6, characterised in that the distance between the inner two feed rollers (4) is smaller than the smallest width of the sheets (5, 10) to be worked with.
  8. Sheet feeding device according to Claim 6, characterised in that the feed rollers (4) are mounted rotatably on a common axle (3).
  9. Sheet feeding device according to Claim 6, characterised in that between the feed rollers (4) and between or adjacent the outer feed rollers (4) is arranged a sheet flap (12) driveable swivellably around a swivel axis (11) in the rhythm of the sheet feeding device between a position directed vertically upwardly lying against the sheet pile front edge and a position inclined in the feed direction (1).
EP98110160A 1997-06-12 1998-06-04 Sheet feeding apparatus Expired - Lifetime EP0884256B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19724733A DE19724733C2 (en) 1997-06-12 1997-06-12 Sheet feeder
DE19724733 1997-06-12

Publications (2)

Publication Number Publication Date
EP0884256A1 EP0884256A1 (en) 1998-12-16
EP0884256B1 true EP0884256B1 (en) 2002-12-18

Family

ID=7832206

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98110160A Expired - Lifetime EP0884256B1 (en) 1997-06-12 1998-06-04 Sheet feeding apparatus

Country Status (4)

Country Link
US (1) US6027110A (en)
EP (1) EP0884256B1 (en)
JP (1) JP3166910B2 (en)
DE (2) DE19724733C2 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10258038B4 (en) * 2002-12-12 2006-12-21 Helmut Steinhilber Method and device for separating the sheets of a recording medium from a stack
US9427928B2 (en) * 2009-08-25 2016-08-30 Sealed Air Corporation (Us) Method and machine for producing packaging cushioning
US8348818B2 (en) 2010-05-27 2013-01-08 Sealed Air Corporation (Us) Machine for producing packaging cushioning
JP6805016B2 (en) * 2017-02-10 2020-12-23 三菱重工機械システム株式会社 Corrugated cardboard sheet feeding device and box making machine

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB768884A (en) * 1954-04-07 1957-02-20 Harris Seybold Co Improvements in or relating to a sheet feeder
US2936170A (en) * 1956-12-10 1960-05-10 Pitney Bowes Inc Document feeding and timing device
US3126199A (en) * 1960-10-05 1964-03-24 Document feeding apparatus
CS181553B1 (en) * 1976-03-12 1978-03-31 Jiri Volf Equipment for loading of sheets
DE4331610A1 (en) * 1993-09-17 1995-03-23 Roland Man Druckmasch Sheet feeder unit
US5441248A (en) * 1994-05-13 1995-08-15 Jay L. Kristola Feeding mechanism
DE19515399C1 (en) * 1995-04-26 1996-07-18 Roland Man Druckmasch Sheet handler for taking and lifting top sheet from stack on to feeder
DE19537284C1 (en) * 1995-10-06 1996-10-24 Heidelberger Druckmasch Ag Sheet guide unit for sheet feeder attachment of printing machine

Also Published As

Publication number Publication date
US6027110A (en) 2000-02-22
JPH1129232A (en) 1999-02-02
JP3166910B2 (en) 2001-05-14
DE59806678D1 (en) 2003-01-30
EP0884256A1 (en) 1998-12-16
DE19724733C2 (en) 2001-10-04
DE19724733A1 (en) 1998-12-17

Similar Documents

Publication Publication Date Title
DE3620945C5 (en) Device for collecting folded printed sheets
DE2732591C2 (en) Device for dismantling a stack of flexible sheet-like structures
DE3608055C2 (en) Device for loading a separating device for printed products, in particular an investor
EP0551601B1 (en) Method and device for feeding particularly folded printed products to a further processing station
EP0503531A1 (en) Device for realising a formation of underlapping objects
EP0417622B1 (en) Method and means for conveying printed products arriving in a shingled formation
DE3134266A1 (en) DEVICE FOR CHANGING THE MOVEMENT DIRECTION OF LETTERS AND SIMILAR RECTANGULAR SHIPMENTS
DE4332418A1 (en) Tilting devices for systems for the assembly of groups of products
DE2058606A1 (en) Method and device for the lateral alignment of sheets, in particular in a printing press
EP0773179B1 (en) Device for making auxiliary stacks during continuous pile exchange in a piler of a printing machine
DE3301852A1 (en) METHOD AND DEVICE FOR THE PROCESSING OF TWO EACH PRODUCTS FORMED BY FLAT PRODUCTS, PREFERRED PRINTED PRODUCTS
EP0755886B1 (en) Device for feeding printed products to a further work station
EP0884256B1 (en) Sheet feeding apparatus
DE2513867C3 (en) High-performance cigarette rod machine with a suction wheel-shaped tobacco rod belt conveyor
DE3878608T2 (en) HIGH-SPEED DEVICE FOR PRESSURE OBJECTS.
EP2053001A1 (en) Method for loosening a stack of sheets, in particular a paper stack, and device for implementing the method
DE19538632C2 (en) conveyor table
EP0806391B1 (en) Device for feeding printed articles to a further work station
DE4126546C1 (en)
EP0136498A1 (en) Method and device for the processing of flat products, especially printed products, which are unwound from a storage coil
DE1937082B2 (en) PROCESS AND DEVICE FOR STACKING EACH OTHER ENVELOPES, BAGS OR SIMILAR WORKPIECES
DD261573A1 (en) ARC BLANK IN BOWERS
EP1285871B1 (en) Delivery device for taking out folded printed products
DE19802085C2 (en) feed table
DE3415578C2 (en) Device for forming gaps in a continuous stream of printed sheets

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): CH DE FR GB IT LI

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

17P Request for examination filed

Effective date: 19981028

AKX Designation fees paid

Free format text: CH DE FR GB IT LI

17Q First examination report despatched

Effective date: 20001221

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): CH DE FR GB IT LI

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20021218

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: NV

Representative=s name: E. BLUM & CO. PATENTANWAELTE

Ref country code: CH

Ref legal event code: EP

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 20021218

REF Corresponds to:

Ref document number: 59806678

Country of ref document: DE

Date of ref document: 20030130

Kind code of ref document: P

Ref document number: 59806678

Country of ref document: DE

Date of ref document: 20030130

ET Fr: translation filed
PLAZ Examination of admissibility of opposition: despatch of communication + time limit

Free format text: ORIGINAL CODE: EPIDOSNOPE2

PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

PLBA Examination of admissibility of opposition: reply received

Free format text: ORIGINAL CODE: EPIDOSNOPE4

26 Opposition filed

Opponent name: KBA - PLANETA AG

Effective date: 20030730

PLAX Notice of opposition and request to file observation + time limit sent

Free format text: ORIGINAL CODE: EPIDOSNOBS2

PLAX Notice of opposition and request to file observation + time limit sent

Free format text: ORIGINAL CODE: EPIDOSNOBS2

PLBB Reply of patent proprietor to notice(s) of opposition received

Free format text: ORIGINAL CODE: EPIDOSNOBS3

PLCK Communication despatched that opposition was rejected

Free format text: ORIGINAL CODE: EPIDOSNREJ1

PLBN Opposition rejected

Free format text: ORIGINAL CODE: 0009273

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: OPPOSITION REJECTED

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20050525

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20050610

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 20050614

Year of fee payment: 8

27O Opposition rejected

Effective date: 20050218

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20060604

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20060630

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20060630

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20060604

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20070228

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20060630

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20080620

Year of fee payment: 11

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100101