EP0908314A1 - Dispositif de commande pour le système de transport de feuilles dans une machine à imprimer rotative pour feuilles - Google Patents

Dispositif de commande pour le système de transport de feuilles dans une machine à imprimer rotative pour feuilles Download PDF

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Publication number
EP0908314A1
EP0908314A1 EP98117950A EP98117950A EP0908314A1 EP 0908314 A1 EP0908314 A1 EP 0908314A1 EP 98117950 A EP98117950 A EP 98117950A EP 98117950 A EP98117950 A EP 98117950A EP 0908314 A1 EP0908314 A1 EP 0908314A1
Authority
EP
European Patent Office
Prior art keywords
curve
control device
swivel
rocker
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
EP98117950A
Other languages
German (de)
English (en)
Other versions
EP0908314B1 (fr
EP0908314B2 (fr
Inventor
Toni Erhard
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
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=7844985&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0908314(A1) "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 EP0908314A1 publication Critical patent/EP0908314A1/fr
Publication of EP0908314B1 publication Critical patent/EP0908314B1/fr
Application granted granted Critical
Publication of EP0908314B2 publication Critical patent/EP0908314B2/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
    • B41F21/00—Devices for conveying sheets through printing apparatus or machines
    • B41F21/10—Combinations of transfer drums and grippers

Definitions

  • the invention relates to a control device for a sheet transport system in one Sheet-fed rotary printing machine according to the preamble of the main claim.
  • a device of this type is known for example from DE-PS 934 770.
  • the sheet transport system is designed here as a gripper arrangement for a printing cylinder and regulates the gripper pressure on the front edge of the sheet taking into account the tensile load.
  • the gripper arrangement essentially consists of a gripper shaft with a roller lever, which rotates on a control cam.
  • the gripper shaft is additionally non-positively loaded in the gripper closing direction by means of a compression spring arranged on a rod.
  • the gripper shaft is opened by means of cam control against the spring force.
  • the spring force can remain unchanged or reduced by extending the rod carrying the compression spring and pairing it with the transmission technology with a lever articulated on the cylinder and rollers with an additional curve control.
  • the disadvantage here is that the forces acting on the cam mechanism in the first embodiment promote wear and promote the lifting of the roller lever from the control cam in the worst case.
  • the second training is complex because an additional control curve with lever and roller is required. Furthermore, as a result of the rod passing through the cylinder axis, a large amount of installation space is required, which makes it difficult to use this solution for multi-size impression cylinders (based on a single-size forme cylinder).
  • the sheet transport system is here as a suction system in a sheet transfer drum Turning the arch formed, which with two subordinate, one on top of the other to swinging gripper systems for turning the bow according to the principle the trailing edge application is in functional connection.
  • a gripper shaft lever is arranged on a gripper shaft, who ultimately wears a cam roller.
  • the frictionally loaded by a tension spring Cam roller is paired with a cam track.
  • the cam track integrated at the end within a roller lever and the cam roller protrudes into the Roller lever to form the cam joint with the cam track.
  • the Roller lever has a fulcrum and carries on the side facing away from the cam track End of a role, which is paired with a control curve forms another curve joint.
  • the roller lever is also with a compression spring in functional connection, which leads the role non-positively on the control cam.
  • the invention has for its object a control device of the beginning to create described type, which avoids the disadvantages mentioned, in particular allows a safe forced run in the curve joint and the load change reactions noticeably reduced within the facility.
  • the task is characterized by the training features of the Main claim solved. Further training results from the subclaims.
  • the control device relates to a sheet transport system which can be used in rotating sheet guide cylinders, such as impression cylinders, transfer drums and turning devices, contact drums and vibrating pre-grippers.
  • the sheet transport system is advantageously formed by a plurality of grippers arranged on a gripper shaft or a pneumatically actuated sheet holding system, for example a suction shaft with corresponding suction systems.
  • the sheet transport system can also be used as a vibrating system for straight-pressure and / or counter-pressure grippers and / or suction devices.
  • the control device for the sheet transport system is suitable for sheet-fed rotary printing presses which can be operated exclusively in straight printing as well as switchable in straight printing or face and reverse printing.
  • control shaft (gripper shaft or suction shaft) of the sheet transport system is coupled to a roller lever with roller, which is paired with a curve.
  • control shaft represents a swivel joint with a pivot point.
  • the pivot point - as mentioned above - is not limited to a control shaft.
  • a further plate which swings around the pivot point of the swivel joint, as a control cam, preferably an arc guide cylinder, which at the same time takes over the function of the roller lever.
  • the roller lever corresponds in terms of transmission technology to a swing arm and is connected to an energy storage device with the interposition of a frame-fixed swing arm and a coupling, in such a way that the positive movement is ensured in the curve joint formed by the roller and curve.
  • Forced running protection means the constant contact of the roller (engaging element) and the curve (curve element) in the curve joint, since the curve and engaging element must be in constant contact during the course of the movement.
  • the forced run protection can be achieved by a pair of forces, which is generated by an energy store, advantageously in the form of a spring system, alternatively by a hydraulic or pneumatic element.
  • cam rocker of the control device is coupled to other means, so that the force pairing in the cam joint is not exposed to sudden load change reactions in order to achieve a more uniform forced running of the cam member and the engaging member.
  • the force field in the control device is improved in such a way that the forces which act on the transmission members outside the swivel joints, following the curve law, are at a defined level.
  • a multicolor offset printing machine likes to point.
  • Fig. 3 several in series arranged printing units 16.
  • Each printing unit 16 has a plate cylinder 21, a blanket cylinder 22 and an impression cylinder 25.
  • the inking unit and, if applicable, the dampening unit should not be discussed in more detail here become.
  • Between the printing units 16 are at least for sheet transport a turning drum 23 and transfer drums 24 for in the conveying direction 18 processing bow arranged.
  • the last printing unit 16 is a delivery arm 20 with a rotating chain system 19 in carrying several gripper systems subordinate itself in a known manner.
  • the transfer drums 24 and turning drums 23 and the boom 20 are sheet guiding devices 17 in a modular manner Design lined up with the most uniform guide surface possible.
  • the control device according to the invention is generally shown in FIG. 1 for a sheet guiding cylinder shown.
  • the kinematic diagram shows a swivel joint 1, which is technically fixed to the sheet guide cylinder on the frame.
  • the rotating sheet guide cylinder for example in Form of a printing cylinder 25, a turning drum 23, a transfer drum 24, a system drum or a vibrating pre-gripper system (the latter not shown) to understand.
  • a curved rocker arm 2 is articulated at the end, which carries at the free end a roller 3 which is functionally connected to a fixed curve 4.
  • a swivel joint 6, which is connected to a coupling 7, is arranged on the cam rocker arm 2.
  • the swivel joint 6 (with articulated coupling 7) can also be arranged in the axis of rotation of the roller 3.
  • the coupling 7 is also connected to a swivel joint 8 arranged on a separate rocker 13.
  • the coupling 7 is thus a binary link with two rotary joints 6, 8 in terms of transmission technology.
  • the rocker 13 is arranged on the bow guide cylinder with a fixed rotary joint 10 and has a further rotary joint 9 between the rotary joints 8, 10.
  • the swivel joint 9 can also be arranged in the axis of rotation of the swivel joint 8.
  • the rocker 13 can alternatively also be designed as an angle lever and is thus a ternary link with the three rotary joints 8, 9, 10.
  • the gripper shaft with roller lever described for the swivel joint 1 substitutable with a suction shaft with roller lever.
  • roller 3 and curve 4 form a curved joint at their mating point, roller 3 being non-positively secured in its forced operation by energy store 12, for example a spring system with compression spring or tension spring.
  • energy store 12 for example a spring system with compression spring or tension spring.
  • a defined force for the forced running protection of roller 3 and curve 4 in the curve joint is maintained with the control device according to the invention essentially over the entire law of motion.
  • the rocker arm 13 mounted on the turning drum 23 in the swivel joint 10 has two swivel joints 8, 9.
  • the rocker arm 13 compensates the forces resulting from the law of motion of the curve 4 and usually effecting load change reactions by the lever arm ratios as well as the force ratios and thus the moments changing due to the rocking motion of the rocker arm 13.
  • the rocker 13 is shown pivoted about the axis of rotation of the swivel joint 10 when the curve joint (roller 3, curve 4) approximately approaches the lowest point on the curve body of curve 4. This corresponds to the position shown in full lines in FIG. 2.
  • a force F 1 acts in the direction of force of the energy store 12, which gives the moment M 1 with a lever arm l 1 (perpendicular from the pivot point of the pivot joint 10 to the direction of force F 1 ).
  • a force F 2 acts on the coupling 7, which results in the moment M 2 with a lever arm l 2 (perpendicular from the pivot point of the pivot joint 10 in the direction of force F 2 ).
  • the rocker 13 with swivel joints 8, 9 is designed with the lever arms l 1 , l 2 in such a way that the following applies to the lever ratios at the lowest point of the curve body (curve 4): l 1 > l 2 .
  • the contact force of the roller 3 in the curve joint at the highest and lowest points of the cam body is approximately the same or, preferably, the contact force of the roller 3 is greater in the lowest curve point than in the highest curve point, with the rocker 13 then the leverage ratios l 1 > l 2 at the lowest curve point and l 1 ' ⁇ l 2 ' at the highest curve point apply.
  • the control device is not limited to a sheet guiding cylinder with a simply large diameter, based on a single-sized forme cylinder. Rather, the device is also suitable for multi-size sheet guiding cylinders. For example, in the case of a double-sized sheet guiding cylinder, the control device is offset symmetrically by 180 ° and can be arranged mirror-inverted to one another on the cylinder circumference.
  • the mode of operation is as follows: In the first training for a sheet guiding cylinder, in particular a pressure cylinder 25, the curve 4 is on one Frame fixed and roller 3 revolves on curve 4. Reach role 3 the the lowest curve point is the swing arm 2, here as a roller lever, with the the gripper shaft corresponding to the swivel joint 1 (possibly suction shaft) is pivoted, so that the grippers are opened. If roller 3 reaches the highest curve point, so the gripper shaft by means of pivoting movement of the swing arm 2 (possibly suction shaft) actuated so that the grippers are closed again.
  • the curve 4 is again on Frame fixed and roller 3 revolves on curve 4.
  • the lowest curve point is the curve rocker 2, here roller lever and control curve for swing systems, pivoted about the swivel joint 1, such that A counter pressure gripper system can be swung in via the curve branch 14.
  • the roller 3 has the highest curve point, the swing arm 2 around the swivel 1 pivoted, such that a fine pressure gripper system over the curve branch 15 is swingable.

Landscapes

  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
  • Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)
  • Delivering By Means Of Belts And Rollers (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
  • Rotary Presses (AREA)
EP98117950A 1997-10-09 1998-09-22 Dispositif de commande pour le système de transport de feuilles dans une machine à imprimer rotative pour feuilles Expired - Lifetime EP0908314B2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19744507A DE19744507C2 (de) 1997-10-09 1997-10-09 Steuereinrichtung für ein Bogentransportsystem in einer Bogenrotationsdruckmaschine
DE19744507 1997-10-09

Publications (3)

Publication Number Publication Date
EP0908314A1 true EP0908314A1 (fr) 1999-04-14
EP0908314B1 EP0908314B1 (fr) 2002-07-03
EP0908314B2 EP0908314B2 (fr) 2006-01-18

Family

ID=7844985

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98117950A Expired - Lifetime EP0908314B2 (fr) 1997-10-09 1998-09-22 Dispositif de commande pour le système de transport de feuilles dans une machine à imprimer rotative pour feuilles

Country Status (4)

Country Link
EP (1) EP0908314B2 (fr)
JP (1) JP2956839B2 (fr)
AT (1) ATE220004T1 (fr)
DE (2) DE19744507C2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6837491B2 (en) 2002-01-11 2005-01-04 Heidelberger Druckmaschinen Ag Device for sustaining a contact force of a control roller on a control cam appertaining thereto

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10347152B4 (de) * 2003-10-10 2011-12-01 Manroland Ag Kurvensteuervorrichtung für ein Bogenhaltesystem in einer Verarbeitungsmaschine
CN102555439A (zh) * 2012-01-12 2012-07-11 天津长荣印刷设备股份有限公司 一种带滚轮的牙排装置及其工作方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE443398C (de) * 1924-02-19 1927-04-27 Linotype Machinery Ltd Vorrichtung zum Bewegen der Druckzylindergreifer bei Druckmaschinen
GB774838A (en) * 1955-04-28 1957-05-15 Roland Offsetmaschf Improvements in or relating to gripper mechanism of sheet conveying machines
DE3630875A1 (de) * 1985-10-09 1987-04-09 Polygraph Leipzig Greifmechanismus

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE503141C (de) * 1930-07-19 Maschf Augsburg Nuernberg Ag Vorrichtung zum Steuern der Vorgreifer an Zweitourenmaschinen
DE934770C (de) * 1954-05-06 1955-11-03 Roland Offsetmaschf Greiferanordnung fuer Bogen verarbeitende Maschinen
DD122239A1 (fr) † 1975-07-01 1976-09-20
DE4012497A1 (de) * 1990-04-19 1991-10-24 Roland Man Druckmasch Saugersteuerung in bogenuebergabetrommeln in mehrfarben-bogendruckmaschinen
DE4339388C2 (de) * 1993-11-18 1998-02-19 Kba Planeta Ag Greifersteuerung in Wendetrommeln
DE4439825C2 (de) † 1994-11-08 2002-07-18 Koenig & Bauer Ag Greifersteuerkurve in Bogenauslegern von Druckmaschinen

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE443398C (de) * 1924-02-19 1927-04-27 Linotype Machinery Ltd Vorrichtung zum Bewegen der Druckzylindergreifer bei Druckmaschinen
GB774838A (en) * 1955-04-28 1957-05-15 Roland Offsetmaschf Improvements in or relating to gripper mechanism of sheet conveying machines
DE3630875A1 (de) * 1985-10-09 1987-04-09 Polygraph Leipzig Greifmechanismus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6837491B2 (en) 2002-01-11 2005-01-04 Heidelberger Druckmaschinen Ag Device for sustaining a contact force of a control roller on a control cam appertaining thereto

Also Published As

Publication number Publication date
JP2956839B2 (ja) 1999-10-04
EP0908314B1 (fr) 2002-07-03
JPH11188840A (ja) 1999-07-13
ATE220004T1 (de) 2002-07-15
DE59804644D1 (de) 2002-08-08
DE19744507C2 (de) 2001-03-29
DE19744507A1 (de) 1999-04-15
EP0908314B2 (fr) 2006-01-18

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