EP0114237A1 - Presse à retiration pour l'impression de feuilles, comprenant deux cylindres de diamètre double - Google Patents

Presse à retiration pour l'impression de feuilles, comprenant deux cylindres de diamètre double Download PDF

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Publication number
EP0114237A1
EP0114237A1 EP83111489A EP83111489A EP0114237A1 EP 0114237 A1 EP0114237 A1 EP 0114237A1 EP 83111489 A EP83111489 A EP 83111489A EP 83111489 A EP83111489 A EP 83111489A EP 0114237 A1 EP0114237 A1 EP 0114237A1
Authority
EP
European Patent Office
Prior art keywords
cylinder
printing
plate
double
rubber
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.)
Withdrawn
Application number
EP83111489A
Other languages
German (de)
English (en)
Inventor
Johannes Schubert
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
Application filed by MAN Roland Druckmaschinen AG filed Critical MAN Roland Druckmaschinen AG
Publication of EP0114237A1 publication Critical patent/EP0114237A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F7/00—Rotary lithographic machines
    • B41F7/02—Rotary lithographic machines for offset printing
    • B41F7/12—Rotary lithographic machines for offset printing using two cylinders one of which serves two functions, e.g. as a transfer and impression cylinder in perfecting machines

Definitions

  • the invention relates to a double-sided printing machine. Printing sheets with two double-sized cylinders and a single-diameter rubber cylinder.
  • machines for optional face and back printing have achieved a high degree of effectiveness.
  • Prerequisites for the backprint are papers of exactly the same length, in order to achieve a print that contains register and registration.
  • turning the sheet usually reduces the printing performance.
  • the required turning device is an additional cost factor.
  • a machine of the type mentioned is disclosed in the offset practice 3/75 page 11.
  • This machine named Dualith, works according to a three-cylinder system 2: 2: 1.
  • a combined cylinder with a plate and a rubber blanket segment should work together on a divided circumference.
  • the plate cylinder has only one plate segment.
  • the inking and dampening unit must every turn, ie if the rubber blanket in the area of the inking and dampening unit seems to be turned off, which requires a difficult to control and additional mechanics, which is also very susceptible to wear. Furthermore, the adjustment of the shutdown must be carried out precisely.
  • the Roland two-color perfect and offset printing machine model RZ I is still known. This has a double-sized rubber cylinder, each with a rubber blanket on both circumferential halves, which works against two plate cylinders and a printing cylinder of normal diameter. This machine could be used for a wide variety of printing tasks, such as single-color printing or two-color printing.
  • DE-PS 913 180 a machine for double-sided printing is known from DE-PS 913 180.
  • the surface printing is applied directly from the plate to the substrate.
  • rough paper cannot be printed in high quality in direct printing.
  • the invention has for its object to provide machines of simple design, with which rough, single-colored sheets of paper can be printed on both sides, simultaneously.
  • the read-correct and read-wrong plate of the double-sized plate cylinder is moistened by one and the same inking and dampening unit or subsequently colored. Both print images are transferred from the plate cylinder to a double-sized rubber cylinder, the read-correct print image from the plate cylinder becoming a read-wrong print image on the double-sized rubber cylinder.
  • the double-sized rubber cylinder can also be covered with a single large rubber blanket.
  • the dampening unit and inking unit are arranged ergonomically in front of the plate cylinder, i.e. the printer reaches all the rollers of the inking and dampening unit without the previously known difficulties when changing the rollers.
  • a double-sized rubber cylinder is arranged between the single-diameter rubber cylinder and the plate cylinder. This carries two rubber blankets on its circumference and transfers the print image to the rubber cylinder with a simple diameter with each revolution if no sheet runs.
  • the second blanket of the double-sized blanket cylinder transfers the ink to the face side of the sheet in the normal offset process. Every second rotation of this single-diameter rubber cylinder takes on the color of the first rubber blanket of the double-sized rubber cylinder.
  • the printer can easily reach a plate cylinder 2 or a plate clamping device 2.1 in order to be able to clamp a read-correct plate 3 and a plate 4 that has been read upside down.
  • the plates 3, 4 are colored by a inking and dampening unit 5 lying in front of the plate cylinder 2, or a dampening liquid is applied to them.
  • the inking and dampening unit 5 is particularly convenient for changing the rollers at the height of the handle of the printer in the front of the printing press 1. The assembly time and costs are reduced in a particularly advantageous manner.
  • the plates 3, 4 can be combined to form a plate 8 if the requirements for register accuracy are particularly high.
  • Behind the plate cylinder 2 lies a double-sized rubber cylinder - 7 in a horizontal line. This takes over the two print images from the plate cylinder 2 onto a divided or continuous rubber blanket 9 and transfers the read image of the plate 4 at every second rotation to the normal-sized rubber cylinder 6 , if no signature runs between the blanket cylinders 6, 7.
  • the rubber cylinder 6 is in a particularly favorable position somewhat below the axis center of the rubber cylinder 7 arranged so that the printed sheets arrive in a straight line from an investment stack 10 via a feed table 11 to the vibrating pre-grippers 12.
  • the printing sheet is printed on both sides by the blanket cylinder 6 and the blanket cylinder 7 and then transported by a gripper device 13 to a delivery stack 14. During the next rotation of the blanket cylinder 6, as mentioned above, a print job does not appear and the readable print image from the blanket cylinder 7 continues to be read on the blanket cylinder 6. Depending on the specific embodiment of the printing press 1, the most varied of cylinder configurations can be selected.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rotary Presses (AREA)
EP83111489A 1983-01-20 1983-11-17 Presse à retiration pour l'impression de feuilles, comprenant deux cylindres de diamètre double Withdrawn EP0114237A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3301770 1983-01-20
DE3301770 1983-01-20

Publications (1)

Publication Number Publication Date
EP0114237A1 true EP0114237A1 (fr) 1984-08-01

Family

ID=6188740

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83111489A Withdrawn EP0114237A1 (fr) 1983-01-20 1983-11-17 Presse à retiration pour l'impression de feuilles, comprenant deux cylindres de diamètre double

Country Status (1)

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EP (1) EP0114237A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0352521A2 (fr) * 1988-07-23 1990-01-31 Koenig & Bauer Aktiengesellschaft Presse rotative d'imprimerie offset avec un encrier à changement rapide des clichés
DE102008022416A1 (de) * 2008-05-06 2009-11-12 TÜV Rheinland Industrie Service GmbH Beschleunigungsmessung an einer Aufzugseinrichtung

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE351332C (de) * 1921-06-07 1922-04-06 Leipziger Schnellpressenfabrik Gummidruckpresse fuer gleichfarbigen Schoen- und Widerdruck
DE442934C (de) * 1924-03-26 1927-04-09 Albert Schnellpressen Rotationsgummidruckmaschine
GB281824A (en) * 1926-10-16 1927-12-15 John William Payne Improvements in multi-colour offset printing presses
DE881043C (de) * 1951-12-09 1953-06-25 Roland Offsetmaschf Offsetdruckmaschine fuer Schoen- und Widerdruck
US4137844A (en) * 1976-12-09 1979-02-06 Paulson Harold E Perfector printer press

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE351332C (de) * 1921-06-07 1922-04-06 Leipziger Schnellpressenfabrik Gummidruckpresse fuer gleichfarbigen Schoen- und Widerdruck
DE442934C (de) * 1924-03-26 1927-04-09 Albert Schnellpressen Rotationsgummidruckmaschine
GB281824A (en) * 1926-10-16 1927-12-15 John William Payne Improvements in multi-colour offset printing presses
DE881043C (de) * 1951-12-09 1953-06-25 Roland Offsetmaschf Offsetdruckmaschine fuer Schoen- und Widerdruck
US4137844A (en) * 1976-12-09 1979-02-06 Paulson Harold E Perfector printer press

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0352521A2 (fr) * 1988-07-23 1990-01-31 Koenig & Bauer Aktiengesellschaft Presse rotative d'imprimerie offset avec un encrier à changement rapide des clichés
EP0352521A3 (fr) * 1988-07-23 1990-04-11 Koenig & Bauer Aktiengesellschaft Presse rotative d'imprimerie offset avec un encrier à changement rapide des clichés
DE102008022416A1 (de) * 2008-05-06 2009-11-12 TÜV Rheinland Industrie Service GmbH Beschleunigungsmessung an einer Aufzugseinrichtung

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

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AK Designated contracting states

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

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18D Application deemed to be withdrawn

Effective date: 19850402

RIN1 Information on inventor provided before grant (corrected)

Inventor name: SCHUBERT, JOHANNES