EP0740607B1 - Vorrichtung zur montage, demontage und transport von leicht biegbaren, bogenförmigen gegenständen mit einhängeabkantungen - Google Patents

Vorrichtung zur montage, demontage und transport von leicht biegbaren, bogenförmigen gegenständen mit einhängeabkantungen Download PDF

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Publication number
EP0740607B1
EP0740607B1 EP95905545A EP95905545A EP0740607B1 EP 0740607 B1 EP0740607 B1 EP 0740607B1 EP 95905545 A EP95905545 A EP 95905545A EP 95905545 A EP95905545 A EP 95905545A EP 0740607 B1 EP0740607 B1 EP 0740607B1
Authority
EP
European Patent Office
Prior art keywords
cylinder
printing plate
pressing
gripper unit
gripping
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
EP95905545A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0740607A1 (de
Inventor
Reinhold Rudolf DÜRR
Bernhard Walter Wolfgang Muth
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.)
Koenig and Bauer AG
Original Assignee
Koenig and Bauer Albert 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
Priority claimed from DE4424931A external-priority patent/DE4424931C2/de
Application filed by Koenig and Bauer Albert AG filed Critical Koenig and Bauer Albert AG
Publication of EP0740607A1 publication Critical patent/EP0740607A1/de
Application granted granted Critical
Publication of EP0740607B1 publication Critical patent/EP0740607B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F27/00—Devices for attaching printing elements or formes to supports
    • B41F27/12—Devices for attaching printing elements or formes to supports for attaching flexible printing formes
    • B41F27/1206—Feeding to or removing from the forme cylinder
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
    • B41P2227/00—Mounting or handling printing plates; Forming printing surfaces in situ
    • B41P2227/60—Devices for transferring printing plates

Definitions

  • the invention relates to a device for assembly, Disassembly and transport of easily bendable, curved objects with hooked edges, preferably printing plates, on and from a cylinder a rotary printing press according to the preamble of Claim 1.
  • a suction element performs a linear movement between a delivery roller and a plate cylinder and thus transports the printing plate.
  • This suction element is attached to a slide by means of a cylinder, which is driven by a chain. Through this cylinder, the suction element can perform a lifting movement at right angles to the slide movement for raising and lowering the pressure plate.
  • the suction element fixes a front, bent end of the pressure plate by switching on the suction effect.
  • the suction element with the plate is lifted by means of the cylinder and conveyed in the direction of the plate cylinder through the carriage with chain drive.
  • the suction element engages a rear end of the Pressure plate and this leads into another groove of the Plate cylinder.
  • a disadvantage of this device is that the Pressure plate on a positioning table that is between the delivery roller and plate cylinder, must be filed and positioned. During the Transport of the printing plate from the positioning table to the cylinder and during the mounting process Pressure plate in the cylinder may have tolerances for example play in the slide guide, the incorrect axial position of the pressure plate cause the cylinder.
  • the US 47 27 807 A describes a device for assembling and disassembling printing plates in a rotary printing press.
  • a handling device that receives the printing plate is moved by a robot between a supply device and a plate cylinder.
  • Four suction pads with which the pressure plate is held are rigidly attached to the handling device.
  • the pressure plate is conveyed from the supply device to the plate cylinder by multi-axis movements of the robot and hooked into a clamping channel of the cylinder with a bend.
  • the pressure plate is positioned axially via a drive that is controlled by force sensors.
  • Four pressure rollers are then turned on by swiveling the handling device. By rotating the plate cylinder, the pressure plate is applied to the plate cylinder and another end is inserted into the channel.
  • the invention has for its object a Device for assembly, disassembly and transport of easily bendable, curved objects with hooked edges, preferably pressure plates, whose respective legs have an opening angle smaller Include 90 ° and no cutouts for Have register pins without a device for Align e.g. B. a positioning table, and without creating robots that are unobstructed Operation and maintenance as well as free accessibility the printing units enables and a safe axial Positioning of the pressure plate ensured.
  • a Device for Align e.g. B. a positioning table
  • the hook-in bends can advantageously the pressure plate leg with an opening angle Alpha less than 90 °, which is why symmetrical assembled closures with pivoting flaps can be used. Allow these closures Machine running in both clockwise and counterclockwise rotation of the cylinder.
  • Provisioning device leads with respect to the cylinder a gripping and pressing device in an advantageous Way just a linear movement to transport the Printing plate from the delivery device to Cylinder off.
  • An inking unit protection is used to save space Provisioning device executed, and the gripping and Pressure device remains in a parking position in the printing unit near the cylinder, where this is protected by a protection is protected against dirt and paint splashes.
  • the device according to the invention is in the drawing shown and is described in more detail below.
  • FIG. 1 shows a cylinder 1 of a rotary printing press with easily bendable, arcuate objects 2, preferably printing plates 2.
  • These hook-in folds 3, 4 are designed to be dimensionally stable, ie when the objects 2 are clamped on the cylinder 1, these hook-in folds 3, 4 are not bent open.
  • This object 2 designed in this way can also consist of printing rubber blankets which are provided with hooked-in folds 3, 4.
  • These dimensionally stable hook-in folds 3, 4 of the printing rubber blankets can be folded ends of a metal plate on which the printing rubber blanket has been firmly bonded, for example glued or vulcanized.
  • the fabric inserts of the printing rubber blanket can be made of CFRP (carbon fiber reinforced plastic) or GRP (glass fiber reinforced plastic) and the hooked-in folds 3, 4 can be formed therefrom.
  • this described object is called pressure plate 2 below.
  • the cylinder 1 of the rotary printing press which is mounted in two side frames 8, 9, is associated with an inking unit protection 11 which is close to the cylinder and is designed as a first printing plate preparation device 12.
  • This pressure plate supply device 12 has an upper and a lower, the upper opposite wall 13, 14, which together form a shaft 16.
  • At one end 17 of the upper wall 13 pointing in the direction of the cylinder 1 there is a hooking strip 19 with a nose-shaped cross section that extends across the width of the cylinder 1 and runs parallel to an axis of rotation 18 of the cylinder 1.
  • the end 17 of the upper wall 13 pointing in the direction of the cylinder 1 is formed approximately parallel to a tangent 21, which is determined by a cylindrical jacket surface 22 of the cylinder 1 and the hanging bar 19 of the printing plate preparation device 12.
  • a second one Printing plate supply device 23 arranged be its end pointing in the direction of the cylinder 1 24 also with a hanging bar 26 with nose-shaped cross section is provided and approximately parallel to that of the cylindrical surface 22 of the Cylinder 1 and the hanger 19 of the first Printing plate supply device 12 set Tangent 21 is formed.
  • Linear drive 27, 28 attached, for example each from threaded spindles 29, 31 which are rotatable in trestles 32, 33, 34, 36 are mounted on the frame, consists.
  • Other known linear drives can also be used 27, 28 such as e.g. B. belt or chain drives, Rack and pinion drives, hydraulic or pneumatic Servo cylinders or linear motors can be used.
  • a strap 37 e.g. B. timing belt
  • the right and left threaded spindle 29, 31 mechanically synchronized becomes a synchronous by a drive 38 Rotary movement of the threaded spindles 29, 31 generated.
  • This Synchronization can also be done mechanically, for example via chain or cardan shafts or electronically via two separate drives 38 of the linear drives 27, 28 respectively.
  • threaded nuts 42 are arranged so that the traverse 39 at right angles to the threaded spindles 29, 31 is in operative connection.
  • this traverse 39 is at least one gripping and pressing device 43, in the example shown are four gripping and Pressure devices 43 attached.
  • Each one, an axial cylinder section associated printing plate 2 is an independent operable gripping and pressing device 43 assigned. It is also possible with an additional one Linear drive through which a single gripping and Pressure device 43 an axial movement along the Traverse 39 executes, several along the cylinder 1 arranged pressure plates 2 with only a single gripping and Pressure device 43 to change.
  • a gripping and pressing device 43 consists of at least one gripper unit 44 and at least one pressure roller 46.
  • This gripper unit 44 and the pressure rollers 46 are independent of the cylinder 1 in the radial direction "D", the gripper unit 44 also in the axial direction "C” displaceable from one another by positioning devices.
  • the gripping and pressing device 43 is constructed approximately symmetrically to the center line of the pressure plate 2 running in the cylinder circumferential direction:
  • Each gripping and pressing device 43 is a gripper unit 44 in the form of z.
  • two suction strips 47 are formed which are perpendicular to a guide bar 48 against rotation tangential direction "B" of the cylinder 1 and are pressed by compression springs 49 in the direction "B" against a stop 51.
  • These guide strips 48 are on another Guide bar 52 attached and by one Pneumatic cylinder 53 against direction "C” slidable.
  • a pneumatic cylinder 54 causes one Change in position of the guide bar 52 with the Squeegees 47 along the direction "D".
  • Suction strips 47 are each a pressure roller 46 opposed by a pneumatic cylinder 56 Direction "D" to be placed on the pressure plate 2 can.
  • the length of the closures 57, 58, 59, 61 is approximately half the cylinder length.
  • These closures 57, 58, 59, 61 are open again Plate width divided (i.e. per closure 57, 58, 59, 61 two pressure plates 2 are provided) and are both within this subdivision as well can be operated independently of one another.
  • the closures 57, 58 are in the circumferential direction of the cylinder 1 by about 90 ° offset from each other.
  • Each shutter 57, 58 is each a closure 59, 61 assigned opposite.
  • the closure 57 is arranged in a cylinder groove 62 running parallel to the axis of rotation 18.
  • the cylinder pit 62 is delimited below the cylinder jacket surface 22 in each case by a front and rear suspension strip 63, 64 with a nose-shaped cross section on the cylinder 1.
  • the closure 57 has a right and left clamping flap 66, 67. Each of these clamping flaps 66, 67 extends in the axial direction along the axis of rotation 18 of the cylinder 1 over approximately the width of the plate.
  • the cross section of the two flaps 66, 67 is formed at a lower end 68 in the form of a circular arc as a bearing point, whereupon a lever 69 continues, which ends in a hook-shaped nose 71.
  • a lever 69 continues, which ends in a hook-shaped nose 71.
  • a side 73 of the nose 71 of the tensioning flap 66 facing the hooked-in bend 4 of the pressure plate 2 runs approximately parallel to the hooked-in bend 3 of the pressure plate 2 in the tensioned state of the tensioning flap 67 62 pivoted. Due to the action of springs 76, the tensioning flap 67 pivots in the direction of the tensioning, rear hook-in bend 4 of the pressure plate 2.
  • the arcuate end 68 of the tensioning flap 67 is provided with a bore 77, in which a rod-shaped torsion spring (torsion bar spring) 76 runs. This torsion bar spring 76 is rigidly and prestressed at one end to the cylinder 1, while its second end is fixed to one end of the tensioning flap 67.
  • this tensioning flap 67 can be arranged axially symmetrically with respect to a center line 78 opposite a further tensioning flap 66 (which can also be produced in the opposite direction of rotation of the cylinder 1) or only one filler can be used. Between these two tension flaps 66, 67 or a filler, a device is attached which generates a force acting on the levers 69 of the two tension flaps 66, 67.
  • an inextensible, inflatable tube 79 is arranged between the two tensioning flaps.
  • the shape of the hose 79 generates a force acting against the torsion bar spring 76 on the levers 69 of the tensioning flaps 66, 67 and these thereby pivot in the direction of the suspension strips 63, 64 of the cylinder 1, whereby the closure 57 opens and the suspension edging 4 of the pressure plate 2 becomes free.
  • the changing process of a printing plate 2 is explained in more detail with reference to FIGS. 2 to 11:
  • the traverse 39 with the gripping and pressing device 43 is moved by the two linear drives 27, 28 from a parking position into its unclamping position, while the cylinder 1 rotates into its unclamping position.
  • the unclamping position of the crossmember 39 is determined in that the crossmember 39 stands approximately on or shortly next to a solder 81 which has fallen onto the threaded spindles 29, 31 of the linear units 27, 28 from the axis of rotation 18 of the cylinder 1.
  • the pressure rollers 46 later placed on the printing plate 2 determine a detachment point 82 of the printing plate from the cylinder 1 in such a way that a tangent 83 applied in the detachment point 82, ie the printing plate 2, opens into the shaft 16 of the printing plate preparation device 12.
  • the unclamping position of the cylinder 1 is determined in that the solder 81 described forms an angle of approximately 10 ° against the production direction with a connecting line formed by a center line 78 of the closure 57 and the axis of rotation 18.
  • the parking position of the traverse 39 with the gripping and pressing device 43 is located in the transport plane 41 in the plate feed direction A at least as far behind the solder 81 which has fallen from the axis of rotation 18 of the cylinder 1 onto the threaded spindles 29, 31, so that manual printing plate changes are carried out, for example can, e.g. B. approx. 100 mm - 200 mm.
  • the parking position is thus outside the plate transport path.
  • the two pressure rollers 46 are pressed by the pneumatic cylinders 56 onto the detachment point 82 of the pressure plate 2 in order to prevent the pressure plate 2 from slipping on the cylinder 1.
  • a closure 57 of the cylinder 1 opens and the cylinder 1 begins to rotate counter to the production direction "P" (FIG. 3). Due to the inherent rigidity of the pressure plate 2, it springs out of the closure 57, which closes again after a rotary movement of the cylinder 1 of approximately 10 °.
  • a new pressure plate 84 rotates the cylinder 1 in a clamping position, the is determined by the center line 78 of the closure 59 approximately congruent with that of the axis of rotation 18 to the perpendicular to Direction of movement of the linear drives 27, 28 precipitated Lot 81 is.
  • the traverse 39 is by means of the two Linear drives 27, 28 in position for receiving the brought new pressure plate 84, d. H. the suction strips 47 are in the area of the cylinder 1 pointing end 17 of the Printing plate supply device 12.
  • the pneumatic cylinder 53 is ventilated Gripper unit 44 moved in the opposite direction "C".
  • the pressure plate 84 to be newly applied was opened the upper wall 13 and on the hanging bar 19 of the printing plate supply device 12 pre-positioned.
  • the suction strips 47 are by venting the Pneumatic cylinder 54 to the level of the pressure plate 84 lowered and charged with suction air (Fig. 6). This causes the printing plate 84 to be printing Side fixed to the gripping and pressing device 43.
  • the traverse 39 is now moved in the direction of cylinder 1 and after about 10 mm are covered the pneumatic cylinder 54, the suction strips 47 with the sucked pressure plate 84 raised.
  • the traverse 39 with gripping and pressing device 43 conveys the pressure plate 84 towards the front Hanging bar 63 of the cylinder 1 to the front Insert folding 3 of the pressure plate 84 with the Hanging bar 63 of cylinder 1 a gap "s" forms so that the gripper unit 44 with the suction strips 47 the pressure plate 84 through the pneumatic cylinder 54 can lower on the cylinder surface 22 (Fig. 7).
  • This gap s is approximately 2 mm to 5 mm.
  • the pressure plate 84 is held by the Suction strips 47, by actuating the pneumatic cylinder 53 with a fixed force, for example sprung, to a respective side register stop 86 axially, parallel to an axis of rotation 18 of the cylinder 1 positioned so that the pressure plate 84 securely on Side register stop 86 is applied, but not deformed becomes.
  • the spring force for positioning the pressure plate 84 can, for example, by the spring of a simple acting pneumatic cylinder 53 or by air pressure (e.g. adjustable via pressure regulator) one double acting pneumatic cylinders are generated.
  • the Side register stops 86 are on the hanging bar 63 of the cylinder 1 below the cylinder surface 22 arranged in a cylinder. In the example shown there is a common page register stop 86 on a left or right side edge of the pressure plate 84 associated with each cylinder section.
  • the described mode of operation of the pneumatic cylinder 53 hits for the arrangement of the side register stop 86 on the left side edge, d. H. towards C, to, at Arrangement of the side register stop 86 on the right
  • the side edge of the pneumatic cylinder 53 must be opposite Act.
  • the cylinder 1 then rotates in the production direction "P" until the pressure rollers 46 approx. 10 ° - 20 ° in front of the rear one Hang-up bend 4 of the pressure plate 84 stand on what the shutter 57 opens (Fig. 10). Then turns the cylinder 1 approx. 5 ° - 10 ° in the direction of production "P", and by closing the shutter 57 becomes the pressure plate 84 clamped on the cylinder 1.
  • the Pressure rollers 46 are raised and the traverse 39 moves with the gripping and pressing device 43 in the parking position.
  • Another plate change in the described manner can be made.
  • the shaft 16 of the first provision device 12 receives a second, used printing plate 2 in accordance with the described first disassembly process. To assemble the second, new pressure plate 88, it is pre-positioned on the second provision device 23 and the assembly process is carried out appropriately for the first.

Landscapes

  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
EP95905545A 1994-01-17 1995-01-17 Vorrichtung zur montage, demontage und transport von leicht biegbaren, bogenförmigen gegenständen mit einhängeabkantungen Expired - Lifetime EP0740607B1 (de)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DE4401110 1994-01-17
DE4401110 1994-01-17
DE4424931A DE4424931C2 (de) 1994-01-17 1994-07-14 Vorrichtung zur Montage, Demontage und Transport von leicht biegbaren, bogenförmigen Gegenständen mit Einhängeabkantungen
DE4424931 1994-07-14
PCT/DE1995/000046 WO1995019262A1 (de) 1994-01-17 1995-01-17 Vorrichtung zur montage, demontage und transport von leicht biegbaren, bogenförmigen gegenständen mit einhängeabkantungen

Publications (2)

Publication Number Publication Date
EP0740607A1 EP0740607A1 (de) 1996-11-06
EP0740607B1 true EP0740607B1 (de) 1998-04-01

Family

ID=25933050

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95905545A Expired - Lifetime EP0740607B1 (de) 1994-01-17 1995-01-17 Vorrichtung zur montage, demontage und transport von leicht biegbaren, bogenförmigen gegenständen mit einhängeabkantungen

Country Status (4)

Country Link
US (1) US5709150A (ja)
EP (1) EP0740607B1 (ja)
JP (1) JP2760901B2 (ja)
WO (1) WO1995019262A1 (ja)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6113346A (en) 1996-07-31 2000-09-05 Agfa Corporation Method for loading and unloading a supply of plates in an automated plate handler
US6189452B1 (en) 1998-04-30 2001-02-20 Creoscitex Corporation Ltd. Apparatus for loading and unloading plates to external drum devices having movable clamps
DE19947173B4 (de) * 1999-10-01 2005-10-27 Man Roland Druckmaschinen Ag Vorrichtung und Verfahren zum Wechseln flexibler Druckformen
US6460457B1 (en) * 1999-11-22 2002-10-08 Heidelberger Druckmaschinen Ag Method and device for automatically providing a printing plate to a plate cylinder
DE10024329A1 (de) * 2000-05-17 2001-11-22 Koenig & Bauer Ag Verfahren und Vorrichtungen zum Andrücken eines Aufzuges auf einen Zylinder
DE10238179B3 (de) * 2002-08-21 2004-01-08 Koenig & Bauer Ag Vorrichtung zum Führen eines Aufzugs an einen Zylinder einer Druckmaschine
DE10314343B4 (de) * 2003-03-28 2009-08-13 Koenig & Bauer Aktiengesellschaft Vorrichtung zum Speichern eines an einem Zylinder einer Druckmaschine auszutauschenden Aufzugs
DE10314344B3 (de) * 2003-03-28 2004-08-26 Koenig & Bauer Ag Vorrichtung zum Speichern eines einem Zylinder einer Druckmaschine zuzuführenden Aufzugs
GB2413530A (en) * 2004-04-29 2005-11-02 Goss Graphic Systems Ltd Printing plate module and printing press
DE102004023434A1 (de) * 2004-05-10 2005-12-08 Maschinenfabrik Wifag Rotationsdruckmaschine mit Saugvorrichtung, Saugvorrichtung und Verfahren zum Wechseln einer Druckform
US7165492B2 (en) * 2005-02-07 2007-01-23 Esko-Graphics A/S Method and apparatus to clamp and release flexible plates onto an imaging cylinder
DE102005029167A1 (de) 2005-06-23 2006-12-28 Maschinenfabrik Wifag Druckzylinderbelag, Kombination aus Druckzylinder und Druckzylinderbelag sowie Druckzylinder mit klemmend befestigtem Druckzylinderbelag
DE102005045506A1 (de) * 2005-09-23 2007-03-29 Man Roland Druckmaschinen Ag Biegemaschine mit beweglicher Druckleiste
US8100054B2 (en) * 2006-08-25 2012-01-24 Esko-Graphics Imaging Gmbh Clamping device, system and method for clamping flexible plates onto an imaging cylinder
DE102007001670B4 (de) 2007-01-11 2009-11-19 Koenig & Bauer Aktiengesellschaft Rotationsdruckmaschine mit mindestens einer Sensoreinrichtung

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH610241A5 (ja) * 1977-02-07 1979-04-12 Sisenca Sa
US4727807A (en) * 1985-09-30 1988-03-01 Tokyo Kikai Seisakusho Apparatus for automatically mounting and removing printing plates in rotary printing press
JPH07115462B2 (ja) * 1988-01-06 1995-12-13 三菱重工業株式会社 刷版の版胴への着脱ロボット用ハンド
US5259314A (en) * 1989-12-06 1993-11-09 Komori Corporation Plate mounting apparatus for printing press
DE4130359C2 (de) * 1991-09-12 1997-04-17 Heidelberger Druckmasch Ag Vorrichtung zum Ab- und/oder Zuführen von Druckplatten einer Druckmaschine
DE4215969C2 (de) * 1992-05-18 1994-10-13 Roland Man Druckmasch Vorrichtung zum Zuführen von Druckplatten auf den Plattenzylinder von Druckmaschinen, insbesondere Bogenoffsetdruckmaschinen

Also Published As

Publication number Publication date
WO1995019262A1 (de) 1995-07-20
EP0740607A1 (de) 1996-11-06
US5709150A (en) 1998-01-20
JP2760901B2 (ja) 1998-06-04
JPH09501114A (ja) 1997-02-04

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