摘要:
The present invention relates to a printing machine comprising a rotary impression drum (4) cooled by water supporting a substrate (S), printing groups (5) and drying groups (6); a water distribution device (7); a first air circulation device (8) associated with said drying groups (6); a drying tunnel (10) for drying the printed substrate (S) and a second air circulation device (11) associated with said drying tunnel (10), said water distribution device (7), said first and second air circulation devices (8, 11) and said drying tunnel (10) being arranged in an upper platform with respect to said print unit (3), and distributed such that a passageway (19) enabling an operator to access said devices is defined between same, access means having been provided for accessing said upper passageway (19).
摘要:
An air blowing device for a printing press includes a plate cylinder (12a), blanket cylinder (11a,11b), impression cylinder (10a), air blowing equipment (30), air suction equipment (31), and cover. The plate cylinder (12a) is rotatably supported. Ink from an inking device and dampening water from a dampening device are supplied to the outer surface of the plate cylinder. The blanket cylinder is rotatably supported in contact with the plate cylinder. The impression cylinder is rotatably supported in contact with the blanket cylinder and cooperates with the blanket cylinder to print on a printing target body under conveyance. The air blowing equipment (30) discharges air from one end side toward the other end side of the blanket cylinder. The air suction equipment (31) takes in air, discharged from the air blowing equipment (30), at the other end side of the blanket cylinder. The cover forms an air passage (32) extending from the air blowing equipment to the air suction equipment in an axial direction of the blanket cylinder.
摘要:
Offsetdruckmaschine (1) mit einer Druckeinheit (10), die ein Druckwerk (20) mit einem Farbwerk (23) zur Farbversorgung des Druckwerks und einem Feuchtwerk (24) zur Feuchtmittelversorgung des Druckwerks und eine Steuervorrichtung (40) aufweist, die mit dem Druckwerk sowie dessen Farbwerk und Feuchtwerk zum Steuern dieser gekoppelt ist, wobei in wenigstens einen der Zylinder (21) des Druckwerks Temperaturmessmittel (21a) zum Bereitstellen von einen Temperaturverlauf über eine Ballenbreite des Zylinders des Druckwerks hinweg repräsentierenden Temperatur-Signalen und erste Übertragungsmittel integriert sind zum Übertragen der Temperatur-Signale an die Steuervorrichtung, und wobei die Steuervorrichtung eingerichtet ist zum Steuern einer Feuchtmittelzufuhr des Feuchtwerks auf Basis der Temperatur-Signale.
摘要:
The invention relates to a method for controlling a printing machine, wherein at least one rotating component (01) of a least one printing unit is regulated to a target value for a temperature (θ b ) representing the component temperature by means of a temperature controller (20, 21), and wherein at least one drive (32) of an assembly of the printing machine is regulated and/or controlled on the basis of a target value (n soll ) for rotational speed prescribed by a command level (31) with regard to a rotational speed (n) to be maintained, wherein at least for an operating phase (I) transient relative to the rotational speed (n), a target value (nson) prescribed by the command level (31) is modified by considering at least one member of a route and/or control model (SRM) characterizing the temperature controller (20, 21) and/or by using a rule (F 2 (θ)) for a dependence of a rotational speed (n) on a temperature (θ), and the modified target rotational speed (N* soll ) serves as a prescribed value for the rotational speed (n) of the drives (32).
摘要:
The invention relates to a cooling device for printing machines, comprising a refrigerating circuit (10) and a cooling water circuit (12), wherein the refrigerating circuit (10) is provided with a compressor (14) having a compressor drive and a regulator (34). The compressor is configured such that the compressor output of the compressor (14) can be controlled via the regulator independently of the rotational speed of the compressor drive.