EP0773179A2 - Dispositif pour faire des piles auxiliaires pendant l'échange en continue de piles dans un empileur d'une machine à imprimer - Google Patents

Dispositif pour faire des piles auxiliaires pendant l'échange en continue de piles dans un empileur d'une machine à imprimer Download PDF

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Publication number
EP0773179A2
EP0773179A2 EP96117493A EP96117493A EP0773179A2 EP 0773179 A2 EP0773179 A2 EP 0773179A2 EP 96117493 A EP96117493 A EP 96117493A EP 96117493 A EP96117493 A EP 96117493A EP 0773179 A2 EP0773179 A2 EP 0773179A2
Authority
EP
European Patent Office
Prior art keywords
sheet
separating
sword
sheets
gripper
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.)
Granted
Application number
EP96117493A
Other languages
German (de)
English (en)
Other versions
EP0773179B1 (fr
EP0773179A3 (fr
Inventor
Rainer Klenk
Richard Mack
Gerd Raasch
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.)
Heidelberger Druckmaschinen AG
Original Assignee
Heidelberger 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
Application filed by Heidelberger Druckmaschinen AG filed Critical Heidelberger Druckmaschinen AG
Publication of EP0773179A2 publication Critical patent/EP0773179A2/fr
Publication of EP0773179A3 publication Critical patent/EP0773179A3/fr
Application granted granted Critical
Publication of EP0773179B1 publication Critical patent/EP0773179B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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
    • B65H2301/426—Forming batches
    • B65H2301/4262—Forming batches by inserting auxiliary support as defined in B65H31/32
    • B65H2301/42622—Forming batches by inserting auxiliary support as defined in B65H31/32 and using auxiliary means for facilitating introduction of the auxiliary support
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2801/00—Application field
    • B65H2801/03—Image reproduction devices
    • B65H2801/21—Industrial-size printers, e.g. rotary printing press

Definitions

  • the invention relates to a device for auxiliary stack formation when changing non-stop stacks in the delivery of a printing press according to the preamble of patent claim 1.
  • Such training features are known from DE 12 31 721 C1.
  • a slatted frame that can be inserted mechanically between two sheets arriving in the sheet conveying direction forms the auxiliary stack carrier in the known embodiment, on which the sheets temporarily form an auxiliary stack, so that the main stack can be removed and a new main stack carrier can be brought into position.
  • the stack change takes place while the machine is running and printing continues. At least in the case of machines with higher printing speeds, a reduction in the machine speed is required to change the stack in order to enable the slatted frame to be inserted between two sheets arriving in succession. If necessary, the batch change can be carried out automatically.
  • Other auxiliary stack carrier training which are suitable for mechanical insertion are disclosed for example by DE 30 28 865 A1 or DE 42 21 928 A1.
  • Machine-operated auxiliary stack carriers in this or a modified design have so far not been able to establish themselves in high-speed machines, particularly when processing thin types of paper.
  • a major problem is the insertion and removal of the auxiliary stack carrier and the resulting sheet damage.
  • There are suggestions for reducing the friction between the auxiliary stack carrier and the bottom sheet of the auxiliary stack for example auxiliary stack carriers with rolling elements or a friction-reducing coating on the surface, but this did not mean a breakthrough in high-speed machines and when processing thin substrates be achieved, so that the application was limited to printing machines for cardboard and the like.
  • DE 42 17 816 A1 discloses a device for the continuous delivery of sections that have been separated from a material web, in which a lowerable auxiliary stacking unit has both a remote-controlled, horizontally retractable and extendable auxiliary stacking base and a remote-controlled separating belt for the defined separation of the continuously occurring Has flow of sections in a main stack and an auxiliary stack.
  • a lowerable auxiliary stacking unit has both a remote-controlled, horizontally retractable and extendable auxiliary stacking base and a remote-controlled separating belt for the defined separation of the continuously occurring Has flow of sections in a main stack and an auxiliary stack.
  • the object of the invention is the design of a device for the automatic non-stop stack change in the delivery of a printing press, which is particularly suitable for sheet-fed printing presses at high printing speed without speed reduction and prevents damage to the sheets that are laid out.
  • the invention solves this problem with a device according to claim 1.
  • the holding device provided thereafter secures the sheet lying on the separating belt against damage.
  • the separating sword can be inserted even at high printing speeds with very closely consecutive sheets between two sheets in the area of the trailing edge of the incoming sheets and causes the formation of a gap over the entire sheet width with a greater height than the sheet spacing from each other, into which an auxiliary stack carrier of suitable design with activated Text holding device can be inserted.
  • the separating sword supports the upper arch across the entire arch width only in the area of its rear edge.
  • the holding device is a separating wedge which can be acted upon by suction air and has suction nozzles on its wedge-shaped surface.
  • This separating wedge interacts with the separating sword in such a way that the separating wedge, which is movable in the sheet conveying direction, drives under the separating sword as soon as it is inserted in the trailing edge area between two successively arriving sheets and then holds the upper sheet by suction in the trailing edge area until the auxiliary stack carrier is retracted.
  • the holding device comprises one or more grippers which grasp and hold the upper sheet at the rear edge, in which the auxiliary stack carrier is retracted.
  • the separating sword is preferably formed on a belt which can be driven transversely to the sheet conveying direction, in particular a steel belt, this belt being mounted in a carriage which is adjustable in the sheet conveying direction, so that the separating sword can be adjusted to the sheet format.
  • the separating sword can be formed on the steel belt by means of a widening extending obliquely to the sheet conveying direction.
  • the separating sword is thereby inserted with a kind of cutting movement between two successive arches. This makes it possible to insert the separating sword even with the smallest of time intervals between two successively arriving sheets.
  • the gap formed by the separating sword can be stabilized by moving the separating sword under the separating wedge, the separating wedge passing through the lowermost sheet of the auxiliary stack that is now forming at its rear edge Suction holds firmly, so that a suitable auxiliary stack carrier can be inserted under the separating wedge into the gap which is now enlarged, for example by lowering the main stack.
  • auxiliary pile carriers are suitable as auxiliary pile carriers.
  • the auxiliary stack carrier in particular a hurdle board, moves transversely to the sheet path into the gap formed by the separating sword and the separating wedge between two sheets.
  • FIGS. 1-4 shows an embodiment of the subject matter of the invention, in which a separating sword 1 is formed on an endlessly rotating steel belt 2 and a separating wedge 3, which is linearly movable in the sheet conveying direction, is movable at a height below the separating sword 1.
  • a known auxiliary stack carrier 4 for example a bar rake, a hurdle board or the like, is also guided in a linearly movable manner, so that the auxiliary stack carrier in the sheet conveying direction in the way through the separating sword 1 in cooperation with the separating wedge 3 between two sheets in the sheet stack 5 gap formed can be inserted and incoming sheets are temporarily stored in an auxiliary stack in a manner known per se, so that the main stack can be changed.
  • the steel belt 2 is guided over two upper guide rollers 6 and two lower guide rollers 7 in a portal-like manner, so that the sheet transport, for example caused by endless conveyor chains with sheet gripper bridges attached to it, takes place from the printing press to the sheet stack 5 through this portal and the incoming sheets with the possible participation Brake bands 20 are braked for storage on the sheet stack 5.
  • the steel strip 2 is guided horizontally parallel to the bend plane in the area of the maximum bend width by a transverse traverse 8.
  • the rear edge of the endless steel strip 2 in the sheet conveying direction has a bevel 9 which engages in a guide groove 10 arranged in the same vertical plane both in the deflection rollers 6 and 7 and in the crossmember 8.
  • the separating wedge 3 is arranged below the crossmember 8 and can be moved in the sheet conveying direction.
  • the separating wedge 3 has a hollow box profile in cross section, the interior of which is connected to a suction air source, preferably to the suction air system of the machine.
  • the top of the front area in the insertion direction of the separating wedge 3 is beveled up to a wedge-shaped tip and has suction air openings 3a.
  • the separating wedge 3 can extend continuously over the sheet width or be composed of several parts arranged next to one another distributed over the sheet width.
  • the deflection rollers 6 and 7 guiding the steel strip are mounted in a slide 11, the side parts of which are guided on the side walls 12 of the frame of the machine so as to be horizontally movable.
  • the cross member 8 connects the side parts of the carriage 11, which are connected to one another by further cross members 13.
  • the separating wedge 3 is also guided on this carriage 11 so that it can move horizontally in the sheet conveying direction, so that a format setting is carried out together with the separating sword 1.
  • the carriage 11, which is horizontally movable in guides 14 of the side parts 12 of the machine frame, is connected to drive means for format adjustment, for example by a chain 15.
  • pneumatic drives made of piston-cylinder units which can be acted upon by compressed air are provided.
  • the pneumatic drive for the horizontal movement of the separating wedge 3 is shown schematically in FIG. 2.
  • the piston rod 16 of the cylinder 17, which can be pressurized with compressed air, engages with a toothing in a gear 18 rotatably mounted on the slide 11, the toothing of which meshes with a toothed rack 19 which is guided horizontally on the slide 11 and to which the separating wedge 3 is fastened.
  • FIG. 3 shows the one-piece design of the separating sword 1 on the steel strip 2.
  • the separating sword 1 is formed by a widening of the steel strip, which extends approximately at an angle of 45 ° to the sheet conveying direction, the length of this widening transverse to the sheet conveying approximately corresponding to the sheet width, preferably the maximum sheet width, so that the one to be supported in the formation of auxiliary stacks in the trailing edge area Arch is supported across the entire width.
  • the separating sword 1 is located directly to the side next to the sheet stack 5, so that it is activated by a switch when the nonstop stack is changed preferably pneumatic drive, which is not shown in the drawing, with a kind of cutting movement at high speed from the side between two sheets in the upper loosened area of the sheet stack and this and the sheets above it in the sheet conveying direction in the trailing edge area briefly, so that in the thus forming gap of the separating wedge 3 extends beyond the front edge of the separating sword and holds the arch supported by suction.
  • the auxiliary stack carrier 4 is pushed into the gap which is then enlarged by lowering the main stack, the separating sword 1 being withdrawn or being moved out of the region of the sheet stack into the rest position shown in FIG. 3 by the circular movement of the belt 2.
  • the separating sword 1 of the device set to the sheet format first moves into the sheet stack in the illustrated embodiment and separates this sheet stack in the region of the sheet trailing edge.
  • stops (not shown) for the trailing edge of the sheet are lowered, for example pivoted away, and then the separating wedge 3 moves in below the separating sword 1 and also sucks the sheet supported by the separating sword on the trailing edge in the area of its trailing edge.
  • the separating sword then moves out of the area of the sheet stack and at the same time the main stack is lowered.
  • the auxiliary stack carrier moves into the thus enlarged gap between two sheets, so that the separating wedge can also be withdrawn from the area of the sheet stack against the sheet conveying direction.
  • the auxiliary stack is lowered to the Main stack, so that the auxiliary stack carrier can return to its end position shown in the drawing.
  • FIGS. 5 to 7 instead of the movably guided separating wedge with suction nozzles, another type of holding device is realized on the basis of grippers.
  • 108 denotes the traverse of the sheet boom, on which the rollers are rotatably supported, inter alia, via bearing blocks 128a, 128b and 128c over which three brake bands 120a, 120b and 120c are guided. The sheets to be laid out are conveyed via these brake bands.
  • Two pivotable trailing edge stops 138a and 138b, on which the trailing edge of the sheet stack 5 (FIG. 1) is aligned, are also fastened to the traverse 108.
  • the steel belt running around the lower area of the crossmember 108 is designated by 102, from which the separating sword, not shown in the figure, is guided.
  • gripper modules are arranged at the points designated 103a and 103b, which represent a holding device, with the aid of which the rear edge of the upper sheet resting on the separating sword can be gripped and held until the auxiliary stack carrier is moved under the sheet.
  • the grippers 103a and 103b can be moved against the force of two pairs of springs 105a and 105b or 105c and 105d out of the cross member 108 in the direction of the trailing edge of the sheet to be gripped, in order to do so seize and hold on.
  • a pneumatic cylinder 107 is arranged on the crossbar 108, the piston of which is connected to an actuating rod 109.
  • Attached to this rod 109 are two stones 106a and 106b provided with bevels 110a and 110b, which, when the rod 109 is actuated, interact with the rear side of the grippers 103a and 103b, which are also inclined, and the grippers 103a and 103b in a guide in the crossbeam 108 Advance sheet conveying direction.
  • each of the two grippers 103a and 103b has two jaws, a fixed jaw 113 and a movable jaw 114 held open by a spring 116 at the upper front end of the fork-like gripper.
  • the outside of the upper jaw 114 is also provided with a bevel 117 and cooperates with a stop 118 in the crossmember 108 in such a way that the gripper jaw 114 with its bevel 117 against the force of the spring 116 against the fixed jaw when it hits the stop 118 113 is pressed.
  • auxiliary stack carrier shown is fully retracted under the sheet. In this way it is avoided that the retracting auxiliary stack carrier moves the sheet lying on the separating sword and thereby damages it.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
  • Pile Receivers (AREA)
  • Discharge By Other Means (AREA)
EP96117493A 1995-11-09 1996-10-31 Dispositif pour faire des piles auxiliaires pendant l'échange en continue de piles dans un empileur d'une machine à imprimer Expired - Lifetime EP0773179B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19541792 1995-11-09
DE19541792A DE19541792B4 (de) 1995-11-09 1995-11-09 Einrichtung zur Hilfsstapelbildung beim Nonstopstapelwechsel im Ausleger einer Druckmaschine

Publications (3)

Publication Number Publication Date
EP0773179A2 true EP0773179A2 (fr) 1997-05-14
EP0773179A3 EP0773179A3 (fr) 1997-10-01
EP0773179B1 EP0773179B1 (fr) 2001-05-30

Family

ID=7777028

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96117493A Expired - Lifetime EP0773179B1 (fr) 1995-11-09 1996-10-31 Dispositif pour faire des piles auxiliaires pendant l'échange en continue de piles dans un empileur d'une machine à imprimer

Country Status (4)

Country Link
US (1) US5915688A (fr)
EP (1) EP0773179B1 (fr)
JP (1) JP3816997B2 (fr)
DE (2) DE19541792B4 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0798252A2 (fr) * 1996-03-28 1997-10-01 Heidelberger Druckmaschinen Aktiengesellschaft Dispositif de changement automatique du format dans le dispositif de décharge d'une machine à imprimer rotative
EP0974543A1 (fr) * 1998-07-21 2000-01-26 Gerhard Kurt Méthode et dispositif pour la formation de piles de feuilles
WO2000078657A1 (fr) * 1999-06-21 2000-12-28 E.C.H. Will Gmbh Procede et dispositif pour changer des palettes destinees a des piles de feuilles
WO2011057919A1 (fr) * 2009-11-10 2011-05-19 Windmöller & Hölscher Kg Dispositif et procédé pour la formation de piles de sachets

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10000512B4 (de) * 2000-01-08 2006-03-09 Koenig & Bauer Ag Einrichtung an kontinuierlich arbeitenden Bogenanlegern
JP4227824B2 (ja) * 2003-03-28 2009-02-18 三菱重工業株式会社 枚葉印刷機の排紙装置
US7021617B2 (en) * 2003-12-22 2006-04-04 Xerox Corporation Clamp actuator system and method of use
DE102005046685A1 (de) * 2005-09-29 2007-04-05 Heidelberger Druckmaschinen Ag Bogenleiteinrichtung für Bogenanleger
US7900904B2 (en) 2007-04-30 2011-03-08 Xerox Corporation Modular finishing assembly with function separation
DE102012021268B4 (de) 2011-11-25 2023-10-05 Heidelberger Druckmaschinen Ag Verfahren und Vorrichtung zur Bildung eines Hilfsstapels
DE102015217170B4 (de) 2014-09-17 2023-10-05 Heidelberger Druckmaschinen Ag Vorrichtung zur Vereinigung eines Hilfsstapels mit einem Hauptstapel
DE102020123987A1 (de) 2020-09-15 2022-03-17 Koenig & Bauer Ag Auslage für eine bogenverarbeitende Maschine und Verfahren zum Ablegen von Bogen in einer Auslage
DE102020123986A1 (de) 2020-09-15 2022-03-17 Koenig & Bauer Ag Auslage für eine bogenverarbeitende Maschine und Verfahren zum Ablegen von Bogen in einer Auslage

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1231721B (de) 1966-04-30 1967-01-05 Maschf Augsburg Nuernberg Ag Zwischenstapelvorrichtung an einer bogenverarbeitenden Maschine
DE3028865A1 (de) 1980-07-30 1982-02-25 M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach Zwischenstapeleinrichtung fuer non-stop-stapelwechsel in auslegern von druckmaschinen
DE4217816A1 (de) 1992-05-29 1993-12-02 Heidelberger Druckmasch Ag Einrichtung zur kontinuierlichen Auslage flächiger Druckabschnitte
DE4221928A1 (de) 1992-07-03 1994-01-05 Heidelberger Druckmasch Ag Vorrichtung zum Non-Stop-Stapelwechsel im Ausleger

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2441459B2 (de) * 1974-08-29 1976-07-01 Roland-Offsetmaschinenfabrik Faber & Schleicher Ag, 6050 Offenbach Vorrichtung zum voruebergehenden auffangen und festhalten eines auf einem stapel abzulegenden bogens
US4359218A (en) * 1980-06-23 1982-11-16 Beloit Corporation Continuous sheet collection and discharge system
DE3114414C2 (de) * 1981-04-09 1984-08-09 Jagenberg-Werke AG, 4000 Düsseldorf Vorrichtung zum Stapeln von Bögen
DE3413597A1 (de) * 1984-04-11 1985-10-24 Jagenberg AG, 4000 Düsseldorf Vorrichtung zum ablegen von in einem bogenfluss transportierten bogen in einem stapel
DE3616470A1 (de) * 1985-12-17 1987-06-25 Jagenberg Ag Verfahren und vorrichtung zum ablegen kontinuierlich zu einer stapelstelle gefoerderter bogen
DE3739194A1 (de) * 1987-11-19 1989-06-01 Jagenberg Ag Vorrichtung zum abstapeln von boegen
DE4011286A1 (de) * 1990-04-06 1991-10-17 Heidelberger Druckmasch Ag Bogenausleger fuer druckmaschinen oder dergleichen
DE4021676C1 (fr) * 1990-07-07 1991-11-21 Hilmar 5653 Leichlingen De Vits
DE4317357C1 (de) * 1993-05-25 1994-11-24 Roland Man Druckmasch Verfahren und Vorrichtung zur exakten Trennung eines Hilfsstapels von einem Hauptstapel bei Non-Stop-Auslegern von bogenverarbeitenden Druckmaschinen

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1231721B (de) 1966-04-30 1967-01-05 Maschf Augsburg Nuernberg Ag Zwischenstapelvorrichtung an einer bogenverarbeitenden Maschine
DE3028865A1 (de) 1980-07-30 1982-02-25 M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach Zwischenstapeleinrichtung fuer non-stop-stapelwechsel in auslegern von druckmaschinen
DE4217816A1 (de) 1992-05-29 1993-12-02 Heidelberger Druckmasch Ag Einrichtung zur kontinuierlichen Auslage flächiger Druckabschnitte
DE4221928A1 (de) 1992-07-03 1994-01-05 Heidelberger Druckmasch Ag Vorrichtung zum Non-Stop-Stapelwechsel im Ausleger

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0798252A2 (fr) * 1996-03-28 1997-10-01 Heidelberger Druckmaschinen Aktiengesellschaft Dispositif de changement automatique du format dans le dispositif de décharge d'une machine à imprimer rotative
EP0798252A3 (fr) * 1996-03-28 1998-02-04 Heidelberger Druckmaschinen Aktiengesellschaft Dispositif de changement automatique du format dans le dispositif de décharge d'une machine à imprimer rotative
EP0974543A1 (fr) * 1998-07-21 2000-01-26 Gerhard Kurt Méthode et dispositif pour la formation de piles de feuilles
WO2000078657A1 (fr) * 1999-06-21 2000-12-28 E.C.H. Will Gmbh Procede et dispositif pour changer des palettes destinees a des piles de feuilles
US6481952B2 (en) 1999-06-21 2002-11-19 E.C.H. Will Gmbh Method of and apparatus for accumulating successive stacks of superimposed sheets
AU773902B2 (en) * 1999-06-21 2004-06-10 E.C.H. Will Gmbh Method and device for changing sheet stack pallets
WO2011057919A1 (fr) * 2009-11-10 2011-05-19 Windmöller & Hölscher Kg Dispositif et procédé pour la formation de piles de sachets
US9427927B2 (en) 2009-11-10 2016-08-30 Windmoeller & Hoelscher Kg Apparatus and method for forming stacks of bags

Also Published As

Publication number Publication date
JPH09169465A (ja) 1997-06-30
EP0773179B1 (fr) 2001-05-30
DE59606994D1 (de) 2001-07-05
EP0773179A3 (fr) 1997-10-01
DE19541792B4 (de) 2004-09-30
DE19541792A1 (de) 1997-05-15
JP3816997B2 (ja) 2006-08-30
US5915688A (en) 1999-06-29

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