EP0175365A2 - Dispositif de montage d'un plaque enveloppante sur un cylindre de plaque - Google Patents

Dispositif de montage d'un plaque enveloppante sur un cylindre de plaque Download PDF

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Publication number
EP0175365A2
EP0175365A2 EP85111842A EP85111842A EP0175365A2 EP 0175365 A2 EP0175365 A2 EP 0175365A2 EP 85111842 A EP85111842 A EP 85111842A EP 85111842 A EP85111842 A EP 85111842A EP 0175365 A2 EP0175365 A2 EP 0175365A2
Authority
EP
European Patent Office
Prior art keywords
frame
forme cylinder
pressure
pivot
pressure roller
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
EP85111842A
Other languages
German (de)
English (en)
Other versions
EP0175365B1 (fr
EP0175365A3 (en
Inventor
Joachim Dorow
Gerhard Bleckmann
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.)
BASF SE
Original Assignee
BASF SE
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 BASF SE filed Critical BASF SE
Priority to AT85111842T priority Critical patent/ATE52732T1/de
Publication of EP0175365A2 publication Critical patent/EP0175365A2/fr
Publication of EP0175365A3 publication Critical patent/EP0175365A3/de
Application granted granted Critical
Publication of EP0175365B1 publication Critical patent/EP0175365B1/fr
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
    • B41F27/005—Attaching and registering printing formes to supports

Definitions

  • the invention relates to a device for covering a removable forme cylinder, in particular a gravure forme cylinder, with a winding plate.
  • the wrapping plate must lie tightly and evenly around the cylinder circumference in order to prevent the wrapping plate from undermining with color and flexing movements of the wrapping plate and thus in the case of an intaglio cylinder from stressing the pit filling.
  • tensioning devices which have been provided in the area of the cylinder pit have been proposed, which enable the plate, which has its edges suspended in the side edges of the pit, to be re-tensioned with high force. Clamping devices of this type, however, prove to be very complex. In the case of simpler tensioning devices, re-tensioning of the winding plate is not possible or not possible with such a high force that the plate lies evenly on the circumference.
  • This object is achieved according to the invention by using a frame with insertion openings provided in the region of its side walls, assigned to the lateral pins of the forme cylinder and with a pivoting frame pivotably mounted outside the insertion openings, which can be fixed in any desired pivoting position relative to the frame and which has a pivoting eccentric bushing mounted, drivable pressure roller.
  • the desired contact pressure can also be set, so that in spite of different forme cylinders and therefore different contact surfaces, the same surface pressure can be achieved in any case.
  • the measures according to the invention thus ensure that there are no restrictions with regard to the usable diameter of the forme cylinder, but rather that each cylinder diameter can be operated in the same way.
  • a plurality of threaded bores arranged on a pitch circle with respect to the axis of rotation of the swivel frame can be provided in the area of the frame side walls, to which an elongated hole arranged on the same pitch circle in the area of each side bearing plate of the swivel frame is assigned, the length of which is greater than is the distance between two adjacent threaded holes.
  • the swivel frame can be swiveled by means of a lifting device.
  • a further, particularly preferred measure can consist in the fact that the eccentric bushings which are rotatably mounted on the end plate side and receive the lateral bearing journals of the pressure roller are each provided with a toothed ring which engages in a pinion which is fastened on a spindle which is rotatably supported on the frame and forms the pivot axis of the swivel frame.
  • the pressure roller can be driven by means of a pinion wedged onto a lateral bearing pin, which meshes with a spur gear rotatably mounted on the spindle forming the axis of rotation of the swivel frame and which can be driven by means of a motor fixed on the frame.
  • Another expedient measure can be that the pressure roller has a rubber jacket. This not only results in excellent protection of the winding plate to be clamped, but can also advantageously compensate for inaccuracies in the winding plate at the same time.
  • the device shown in Figure 1 consists of a machine frame, which has two side, interconnected by crossbars 1 side walls 2, the one with a half-height arranged, open on one side, slit-shaped insertion opening 3 for inserting the side bearing pin 4 with a winding plate occupying forme cylinder 5 are provided.
  • the insertion opening 3 in the region of each side frame 2 can be closed by means of a removable or swivelable closure flap 6 in such a way that the inner region of the insertion opening 3 forms a pivot bearing for the associated bearing journal 4 of the forme cylinder 5.
  • a pressure roller 7 is provided, which can be set against the circumference of the forme cylinder 5 and driven by a motor 8.
  • the forme cylinder 5 is provided here with a pit formed by an axially parallel, circumferential slot 9.
  • the wrapping plate to be placed is simply hung with its bent edges on the edge of the pit and then rolled on by means of the pressure roller 7, the bent edge edges of the wrapping plate then also being pressed into the slot forming the pit 9.
  • the pressure roller 7 is provided with a rubber cover.
  • the pressure roller 7 is received on a pivot frame designated as a whole by 10, which is pivotably mounted on the frame side walls 2 about an axis located outside the insertion opening 3.
  • the swivel frame 10 has lateral bearing plates 11, parallel to the frame side walls 2, on which the pressure roller 7 is mounted.
  • the end shields 11 and thus the entire swivel frame 10 are fixed to the frame side walls 2.
  • threaded bores 13 are provided in the region of each side wall 2 on a pitch circle 12 drawn around the pivot axis of the pivot frame 10 with the same mutual spacing.
  • the end shields 11 of the swivel frame 10 are each provided with an elongated hole 14 located on the same pitch circle 12, through which a fixing screw 15 which can be screwed into a selected threaded bore can be inserted.
  • the mutual distance between the threaded holes 13 is slightly smaller than the length of the associated elongated hole 14, in such a way that the elongated hole 14 can extend over two adjacent threaded bores 13, which ensures a continuous adjustability of the swivel frame 10.
  • a lifting device 16 is assigned to the swivel frame 10 to ensure simple handling.
  • this consists of a threaded spindle 18 which is pivotally supported on the frame side and is provided with a drive wheel 17 and which engages in an associated threaded bushing 19 fastened to the swivel frame 10. It would also be conceivable to pivot the swivel frame 10 by hand.
  • a bearing plate 11 is also provided with an additional borehole 31, into which a frame-fixed pin 32 engages in order to accomplish a particularly reliable holder.
  • the pivotability of the swivel frame 10 practically enables a coarse adjustment of the pressure roller 7.
  • the pressure roller 7 can be further adjusted with the swivel frame 10 already fixed, as a result of which the contact pressure acting on the associated forme cylinder 5 can be precisely adjusted.
  • the forme cylinder 5 has a large diameter, there is a comparatively large contact area between the forme cylinder 5 and the pressure roller 7.
  • the size of this pressure surface also decreases with the cylinder diameter. Nevertheless, the same surface pressure should always be effective when rolling on a winding plate come. This can be easily achieved by adjusting the eccentric bushings 21.
  • the eccentric bushes 21, as can be seen further in FIG. 2, are each provided with an integrally formed or, as here, attached toothed ring 22 which engages in a respectively assigned pinion 23.
  • the pinions 23 assigned to the two eccentric bushes 21 are wedged onto a continuous adjusting spindle 24 which is mounted in the frame side walls 2 and which is provided with a handwheel 25 provided in the region of the frame outside.
  • the handwheel 25 can be provided with a position indicator 26 on which the set contact pressure can be read.
  • the adjusting spindle 24 simultaneously forms the axis of rotation of the swivel frame 10, the side bearing plates 11 of which are mounted thereon by means of associated bearing bushes.
  • the adjusting spindle 24 thus has a double function, which facilitates the adjustability of the eccentric bushes 21 despite the adjustability of the swivel frame 10.
  • a pinion 27 is provided which is wedged onto a lateral bearing pin 20 and which engages in an associated spur gear 28 which is freely rotatably mounted on the adjusting spindle 24 which forms the swivel frame axis of rotation and which is firmly connected to a laterally attached pulley 29 which is connected by means of an assigned belt 30 to the drive motor 8 arranged fixed to the frame on a cross member 1.
  • the adjusting spindle 24 thus also forms an axis of the drive gear associated with the pressure roller 7 and formed by the spur gear 28 and the pulley 29. This ensures that the pressure roller 7 can be driven practically with each adjustment of the swivel frame 10 and each adjustment of the eccentric bushes 21 by means of the motor 8 arranged fixed to the frame.
  • the toothing of the pinion 27 and the associated spur gear 28 is selected so that a reliable engagement is ensured in every position of the eccentric bushings 21. This is readily possible since, due to the positional adjustment of the swivel frame 10, a comparatively low eccentricity of the eccentric bushes 21 is sufficient to be able to set the desired contact pressure.
  • the winding plate to be applied to the forme cylinder 5 is, as already explained above, rolled onto the forme cylinder 5 and thus brought into the clamping position. Subsequent to the rolling process, the clamping jaws assigned to the edge claws of the winding plate engaging in the pit 9 can be readjusted, provided that such adjustability is provided. However, it may also suffice to simply design the pit 9 in the form of an oblique slot into which the edge claws of the winding plate are pressed by means of the pressure roller 7 after the rolling process has ended. After the winding plate has been brought into position, the pit 9 must be closed in the case of a gravure cylinder. For this purpose, the pit 9 is generally filled with a plastic, hardening mass. This can be done in. Under a separate device. In the exemplary embodiment shown, a work station is provided on the side of the insertion opening 3 opposite the pivot frame 10, thereby avoiding reclamping of the forme cylinder 5.
  • the pit 9 is filled in the manner of an injection mold.
  • connecting nipples are provided in the area of the side pit covers for an admission line.
  • the circumferential cross-section of the pit is covered by a plate 33 which is pressed against the circumference of the cylinder.
  • a pressure bar 34 is provided which extends across the entire width of the machine and which engages with its lateral ends in guides 35 provided in the area of the frame side walls 2, which plate 33, which can expediently consist of transparent, flexible material, which run radially with respect to the rear region of the insertion opening 3, which forms a rotary bearing for the bearing pins 4 of the forme cylinder 5.
  • the pressure beam 34 is designed as a circumferential box frame, which has two parallel pressure bars 36 which extend across the machine width and two webs 37 which connect them to one another in the region of their ends and on which an associated lifting device 38 engages.
  • the inner, to protect the plate appropriately rounded edges of the cylinder-side surfaces of these pressure bars 36 result in pressing edges with the aid of which the curvature of the area of the plate 33 spanning the circumferential cross-section of the pit 9 can be adapted exactly to the cylinder curvature. In the present case, this is done simply by pressing the plate 33 practically with its entire width against the cylinder circumference.
  • the lifting device 38 assigned to the pressure beam 34 consists of two synchronously operable actuators 39, which are supported by a toggle lever arrangement on the webs 37 and are supported on the frame and are designed here in the form of cylinder-piston units working with compressed air.
  • the toggle lever arrangement provided between the actuator 39 and the associated web 37 comprises two hinged tabs 40 and 41, one of which is articulated to the associated web 37 and the other to the adjacent frame side wall 2.
  • the link 40 articulated on the web side is designed as an exchange part and can be used to adapt the working position of the pressure beam 34 to the Diameter of the forme cylinder 5 can be exchanged for longer or shorter tabs. A further adjustment in a narrower framework could also be achieved in that the tabs 40 and 41 can be articulated to one another at several points.
  • one of the tabs expediently the tab 41 articulated on the frame, could be provided with a plurality of bearing bores 42.
  • the length of the exchange tab 40 and the bearing bore 42 to be occupied are selected so that the toggle lever arrangement comes approximately into the extended position in the pressing position. The greatest contact pressure results in this position, in which the axes of the three joints lie on a straight line.
  • the length of the guide 35 is selected such that the pressure bar 34 is reliably guided in every case, ie regardless of the diameter of the forme cylinder 5.
  • a stop 43 can be provided for the pressure beam 34.
  • the tab 41 articulated on the frame need not be interchangeable.
  • the assigned actuator 39 therefore expediently acts on this tab.
  • one hinge pin of each of the three joints of each toggle lever arrangement is designed as an adjustable eccentric pin.
  • the bracket 41 hinged on the frame side is hinged to the respectively assigned side wall 2 by means of an adjustable eccentric bolt 44, as a result of which good accessibility of the eccentric bolt to be adjusted and thus excellent ease of use are ensured.
  • the pressure beam 34 and the guide 35 and lifting device 38 assigned to it are located in the exemplary embodiment shown above the insertion opening 3 assigned to the cylinder 5.
  • the swivel frame 10 with the pressure roller 7 is arranged below it. This measure results in a clear, compact design and simple operability.
  • the preparation of the forme cylinder 5 is completed.
  • the finished forme cylinder can therefore be removed from the device according to the invention and inserted into the associated printing unit, here an intaglio printing unit.
  • the preparation of the forme cylinder 5 outside of the assigned printing unit thus clearly ensures high printing unit utilization even when using winding plates, in particular gravure winding plates.

Landscapes

  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
  • Rotary Presses (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Coating Apparatus (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Soil Working Implements (AREA)
  • Braking Systems And Boosters (AREA)
EP85111842A 1984-09-21 1985-09-19 Dispositif de montage d'un plaque enveloppante sur un cylindre de plaque Expired - Lifetime EP0175365B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85111842T ATE52732T1 (de) 1984-09-21 1985-09-19 Vorrichtung zum belegen eines formzylinders mit einer wickelplatte.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19843434670 DE3434670A1 (de) 1984-09-21 1984-09-21 Vorrichtung zum belegen eines formzylinders mit einer wickelplatte
DE3434670 1984-09-21

Publications (3)

Publication Number Publication Date
EP0175365A2 true EP0175365A2 (fr) 1986-03-26
EP0175365A3 EP0175365A3 (en) 1987-10-28
EP0175365B1 EP0175365B1 (fr) 1990-05-16

Family

ID=6245969

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85111842A Expired - Lifetime EP0175365B1 (fr) 1984-09-21 1985-09-19 Dispositif de montage d'un plaque enveloppante sur un cylindre de plaque

Country Status (8)

Country Link
US (1) US4622895A (fr)
EP (1) EP0175365B1 (fr)
JP (1) JPS6178649A (fr)
AT (1) ATE52732T1 (fr)
CA (1) CA1247934A (fr)
DE (2) DE3434670A1 (fr)
DK (1) DK164991C (fr)
ES (1) ES8608409A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3539586A1 (de) * 1985-11-08 1987-05-14 Roland Man Druckmasch Verfahren zum aufbringen eines schutzbelages auf einen druckwerkzylinder mit vorrichtungen zur durchfuehrung des verfahrens
DE4241567A1 (de) * 1992-12-10 1994-06-16 Roland Man Druckmasch Vorrichtung zur Druckeinstellung eines mit einer aufschiebbaren Hülse ausgestatteten Druckzylinders
DE4401301A1 (de) * 1994-01-18 1995-07-20 Roland Man Druckmasch Vorrichtung zur Druckeinstellung eines mit einer aufschiebbaren Hülse ausgestatteten Druckzylinders
US5701823A (en) * 1997-01-27 1997-12-30 Morris; Jerry L. Self aligning tool for registering rotary printing plates and method of registering plates

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2668363A (en) * 1950-08-01 1954-02-09 Cleveland Shopping News Compan Means for registering printing plates
GB896975A (en) * 1959-09-14 1962-05-23 Guthrie William Gifford Apparatus for use in setting up printing machinery
CH477977A (de) * 1967-11-16 1969-09-15 Albert Schnellpressen Vorrichtung zum Spannen des Aufzuges an Druckmaschinen
DE3015273A1 (de) * 1979-05-07 1980-11-20 Wifag Maschf Vorrichtung zum auswechseln des formzylinders einer tiefdruck-rotationsmaschine
EP0118866A2 (fr) * 1983-03-12 1984-09-19 BASF Aktiengesellschaft Procédé et dispositif d'obturation de la fente entre les extrémités d'un cliché d'impression en creux fixé sur un cylindre de plaque

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3347159A (en) * 1964-12-31 1967-10-17 Potter Instrument Co Inc Adjustable quick-release mechanism for print drum
US3598050A (en) * 1968-07-18 1971-08-10 Int Machine Prod Inc Mounting means for a printing roll and associated driving apparatus
US3625145A (en) * 1969-06-05 1971-12-07 Bobst Champlain Inc Cylinder cart for exchanging cylinders on the fly
US3789757A (en) * 1971-03-26 1974-02-05 Motter J Printing Press Co Printing press having automatic printing cylinder loading and unloading apparatus
US4046070A (en) * 1974-04-22 1977-09-06 James Halley & Sons Limited Rotary printing presses
DE2632455C3 (de) * 1976-07-19 1979-05-23 Windmoeller & Hoelscher, 4540 Lengerich Vorrichtung zum Ein- und Ausfahren des Farbwerkes und des Formzylinders einer Rotations-Tiefdruckmaschine
DE3207622C2 (de) * 1982-03-03 1985-02-21 M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach Vorrichtung zum An-, Ab- und Einstellen von Auftragwalzen am Plattenzylinder von Druckmaschinen
DE3407428C1 (de) * 1984-02-29 1985-10-17 M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach Anordnung zum Antrieb einer Walze oder eines Zylinders einer von Buchdruck auf Flexodruck umruestbaren Rotationsdruckmaschine
DE3407681A1 (de) * 1984-03-02 1985-09-05 Heidelberger Druckmaschinen Ag, 6900 Heidelberg Vorrichtung zum austauschen einer, mit einer numerierwelle zur aufnahme von ziffernwerken versehenen numerier- und eindruckvorrichtung in druckmaschinen

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2668363A (en) * 1950-08-01 1954-02-09 Cleveland Shopping News Compan Means for registering printing plates
GB896975A (en) * 1959-09-14 1962-05-23 Guthrie William Gifford Apparatus for use in setting up printing machinery
CH477977A (de) * 1967-11-16 1969-09-15 Albert Schnellpressen Vorrichtung zum Spannen des Aufzuges an Druckmaschinen
DE3015273A1 (de) * 1979-05-07 1980-11-20 Wifag Maschf Vorrichtung zum auswechseln des formzylinders einer tiefdruck-rotationsmaschine
EP0118866A2 (fr) * 1983-03-12 1984-09-19 BASF Aktiengesellschaft Procédé et dispositif d'obturation de la fente entre les extrémités d'un cliché d'impression en creux fixé sur un cylindre de plaque

Also Published As

Publication number Publication date
US4622895A (en) 1986-11-18
EP0175365B1 (fr) 1990-05-16
DE3577672D1 (de) 1990-06-21
DK164991C (da) 1993-02-08
DK426685D0 (da) 1985-09-20
DK426685A (da) 1986-03-22
ES547174A0 (es) 1986-06-16
ATE52732T1 (de) 1990-06-15
CA1247934A (fr) 1989-01-03
ES8608409A1 (es) 1986-06-16
EP0175365A3 (en) 1987-10-28
JPS6178649A (ja) 1986-04-22
DE3434670A1 (de) 1986-04-03
JPH0443511B2 (fr) 1992-07-16
DK164991B (da) 1992-09-28

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