Offset printing machine

• US 7,159,513 B2
• Filed: 07/18/2005
• Issued: 01/09/2007
• Est. Priority Date: 08/30/1994
• Status: Expired due to Fees

• Current Assignee: Manroland AG (Allianz Se)
• Original Assignee: Man Roland Druckmaschinen AG (Allianz Se)
• Inventors: Schramm, Michael, Grobner, Peter, Koniger, Johann, Hajek, Josef
• Primary Examiner(s): Nguyen; Anthony H.
• Application Number:
  US11/183,628
• Publication Number:
  US 20050284317A1
• Time in Patent Office: 540 Days
• Field of Search: 101/219, 101/216, 101/232, 101/233, 101/217, 101/220, 101/228, 101/177, 101/138, 101/248
• US Class Current: 101/219
• CPC Class Codes: B41F 13/0045 Electric driving devices
• CPC Class Codes: B41F 13/28 Bearings mounted eccentrically of the cylinder axis
• CPC Class Codes: B41F 13/56 Folding or cutting
• CPC Class Codes: B41F 7/02 for offset printing
• CPC Class Codes: B41F 7/025 Multicolour printing or perfecting on sheets or on one or more webs, in one printing unit
• CPC Class Codes: B41P 2213/734 each printing unit being driven by its own electric motor, i.e. electric shaft

Abstract

The invention relates to the drive of a printing machine. Cylinders and functional groups are to be driven with low technical expenditure. To this end, all form cylinders in a printing unit, for example, are driven respectively by separate electric motors and are not in mechanical drive connection.

Claims

1. A drive for a rotary offset printing press comprising:

printing units having a first pair of cylinders (3, 13, 67) for transferring ink including a first form cylinder (1.1, 1.4, 69) and a first transfer cylinder (2.1, 2.4, 71) which are mechanically coupled and drivable via a first motor (7, 198), a second pair of cylinders (4, 14, 68) for transferring ink including a second form cylinder (1.2, 1.5, 70) and a second transfer cylinder (2.2, 2.5, 72) which are mechanically coupled and drivable via a second motor (7, 200);

each said form cylinder (1.1, 1.2, 1.4, 1.5, 69, 70) being associated with an inking unit and a damping unit;

a computer motor control and memory unit (56, 57, 73, 74) for controlling the position of the motors (7, 198, 200);

said first and second motors driving said transfer cylinders (71, 72) and said transfer cylinders driving said respective form cylinders (69, 70) via a meshing;

or said first and second motors driving said form cylinders (1.1, 1.2, 1.4, 1.5) and said form cylinders (1.1, 1.2, ,1.4, 1.5) driving said respective transfer cylinders (2.1, 2.2, 2.4, 2.5) via a meshing;

functional units (28, 29, 30, 31, 32, 26, 27, 27.1) disposed outside said printing units (21, 22, 23, 24) along a web (155) to be printed, said functional units comprising one or more rollers or cylinders (28, 29, 30, 31, 32, 145, 146, 148), said rollers or cylinders being drivable individually or collectively by a motor for the functional unit (28, 29, 30, 31, 32, 26, 27, 27.1).

2. The drive according to claim 1, wherein said functional units (28, 29, 30, 31, 32, 26, 27, 27.1) comprise a folding blade cylinder (145, 146, 148) without advance, and a cutting roller (30), a forming roller (31), a feeding and transfer roller (32) and a cooling roller (29) with adjustable advance.

3. The drive according to claim 1, wherein said functional rollers and cylinders (29, 30, 31, 32, 145) are drivable via a belt.

4. The drive according to claim 2, wherein said functional rollers and cylinders (29, 30, 31, 32, 145) are drivable via a belt.

5. The drive according to claim 1, wherein said motors (7, M) are angle-controlled motors.

6. The drive according to claim 1, additionally comprising a driven satellite cylinder (16) disposed between said pairs of cylinders (3, 4, 13, 14).

7. The drive according to claim 1, additionally comprising a device (73, 74) for controlling the circumferential register.

8. The drive according to claim 1, wherein said pairs of cylinders (3, ,4, 13, 14) are in drive connection with each other and, optionally, with a satellite cylinder (16).

9. The drive according to claim 1, additionally comprising a motor control system (56) for storing a plurality of cylinder positions, said motor control system having an input side;

and a computer and memory unit (57) connected to said input side of said motor control system for presetting said printing units (21, 22, 23, 24) for adaptation to a different web path.

10. The drive according to claim 1, additionally comprising a comparator (65);

a sensor (63) for controlling the cutting register of a web to be printed (155);

a position indicator (64) located on a drive side;

said sensor (63) and said position indicator (64) being connected to an input side of said comparator (65); and

a motor control system (66) connected to an output side of said comparator (65) for driving said motor with advance or lag to achieve a required position.

11. The drive according to claim 1, additionally comprising a computing and memory unit (65) for storing cylinder positions for a cutting register;

and wherein for controlling the cutting register a computer motor control system (66) is connected to an output side of said computing and memory unit (65).

12. The drive according to claim 1, additionally comprising a side wall and bearing shields (123, 124) in said sidewall and wherein at least one of said cylinders comprises a journal (117) seated in said bearing shields, said bearing shields being movable from a closed position for supporting said journal to an open position to permit insertion and removal of a blanket sleeve or a printing sleeve.

13. The drive according to claim 1, wherein said motor (M) for said functional units (28, 29, 30, 31, 32, 26, 27, 27.1) is drivable with adjustable advance.