摘要:
According to a drive control method and apparatus, an offset printing section (20) and an intaglio printing section (30) are connected together by a gear train (41, 42, 43, 40a, 40b, 44, 45). Separately from an offset printing section prime motor (142) for driving an entire sheet-fed printing press (10), an intaglio printing section auxiliary motor (148) is provided in the intaglio printing section (30) where load is heaviest and load variations are great. By so doing, the entire sheet-fed printing press (10) is driven by the offset printing section prime motor (142) and the intaglio printing section auxiliary motor (148). Moreover, the electric current value (driving torque value) of the intaglio printing section auxiliary motor (148) is controlled in accordance with an electric current value (torque value) for driving the offset printing section prime motor (142), the torque distribution rate of the intaglio printing section auxiliary motor (148), and the rated electric current value of the intaglio printing section auxiliary motor (148).
摘要:
A driving apparatus in a printing press includes a plate cylinder driven by a printing press motor, an inking device drive-coupled to the plate cylinder, and a driving connecting/disconnecting mechanism. The mechanism connects and disconnects transmission of driving from the plate cylinder to the inking device, and includes first and second gears which are engageable with each other, supported rotatably, and constantly drive-coupled to one and the remaining one, respectively, of the plate cylinder and inking device. The second gear has a second engaging portion engageable with a plurality of first engaging portions of the first gear which have the same shape and are equidistantly arranged in a rotational direction of the first gear. When the first and second engaging portions engage, the plate cylinder and inking device are drive-coupled; when they are disengaged, they are disconnected. The number of first engaging portions is set on the basis of a value related to the first gear, so that when the plate cylinder reaches a phase identical to that where the first and second engaging portions disengage, the first and second engaging portions can engage regardless of a driving connection ratio of one of the plate cylinder and inking device to the first gear.
摘要:
Druckwerk (1) einer Druckmaschine, mit einem Druckzylinder (2), mit einem Formzylinder (4), mit einem Übertragungszylinder (3), und mit einem mindestens eine Walze umfassenden Farbwerk (5), wobei der Druckzylinder, der Übertragungszylinder und der Formzylinder sowie Walzen des Farbwerks im Druckbetrieb von einem Hauptantrieb aus antreibbar sind, wobei der Formzylinder (4) über eine erste schaltbare Kupplung (21) antriebsseitig vom Hauptantrieb abkoppelbar und an denselben ankoppelbar ist, derart, dass bei geschlossener erster Kupplung (21) der Formzylinder (4) über die erste Kupplung an den Hauptantrieb angekoppelt ist, und dass bei geöffneter erster Kupplung der Formzylinder vom Hauptantrieb abgekoppelt und an einen Formzylinderhilfsantrieb (20) ankoppelbar ist; und wobei das Farbwerk (5) über eine zweite schaltbare Kupplung (27) antriebsseitig vom Hauptantrieb abkoppelbar und an denselben ankoppelbar ist, derart, dass bei geschlossener zweiter Kupplung das Farbwerk (5) über die zweite Kupplung (27) an den Hauptantrieb angekoppelt ist, und dass bei geöffneter zweiter Kupplung das Farbwerk (5) vom Hauptantrieb abgekoppelt ist.
摘要:
A driving apparatus in a printing press includes a plate cylinder driven by a printing press motor, an inking device drive-coupled to the plate cylinder, and a driving connecting/disconnecting mechanism. The mechanism connects and disconnects transmission of driving from the plate cylinder to the inking device, and includes first and second gears which are engageable with each other, supported rotatably, and constantly drive-coupled to one and the remaining one, respectively, of the plate cylinder and inking device. The second gear has a second engaging portion engageable with a plurality of first engaging portions of the first gear which have the same shape and are equidistantly arranged in a rotational direction of the first gear. When the first and second engaging portions engage, the plate cylinder and inking device are drive-coupled; when they are disengaged, they are disconnected. The number of first engaging portions is set on the basis of a value related to the first gear, so that when the plate cylinder reaches a phase identical to that where the first and second engaging portions disengage, the first and second engaging portions can engage regardless of a driving connection ratio of one of the plate cylinder and inking device to the first gear.