摘要:
The invention relates to a side frame (02) of a printing device (01) for face-mounting printing-unit cylinders (06; 07) of four printing units (04), comprising a frame front wall (44) that is located in closer proximity to the printing-unit cylinders to be mounted, through which journals (31; 32) of the printing-unit cylinders (06; 07) or spindles being extensions of the journals can be passed and/or are passed through the frame wall side facing away from the cylinders. The side frame further comprises at least two wall sections (48) that are essentially vertically arranged on the frame wall side of the frame front wall (44) facing away from the cylinders and are integral with said frame front wall or are at least rigidly connected. In a horizontal direction, the two wall sections (48) are arranged spaced apart from one another such that the vertical planes of at least all printing-unit cylinders (06; 07) of the four printing units (4) extending through the respective rotational axes (R06; R07) of the printing-unit cylinders (06; 07) extend between the two wall sections (48). At a height arranged at a distance from the frame front wall (44) in an axial direction of the printing-unit cylinders (R06; R07), in at least one vertical area above a rotational axis (R06; R07) of a lower-most printing-unit cylinder (06; 07) and below a rotational axis (R06; R07) of an upper-most printing-unit cylinder (06; 07), the two wall sections (48) are each connected to a support structure (43) comprising at least one support element (53), which across the entire connection width between the two wall sections (48) is of rigid construction to prevent deflection in an axial direction of the printing-unit cylinders (06; 07) in that, along at least one path spanning the entire connection width and viewed in an axial direction of the printing-unit cylinders (06; 07), the support structure (43) has a homogeneous or heterogeneous total material thickness of at least 10 mm and/or the at least one support element (53) is configured as a support wall (57) having the effect of an edging or a collar, said support wall arising across the plane of a support bottom (58) in an axial direction of the printing-unit cylinders (06; 07).
摘要:
A printing unit (01) comprises at least one first printing mechanism (04) and a second printing mechanism (04) forming a double printing mechanism (12) with the first printing mechanism (04), wherein the first and the second printing mechanism (04) each comprise a printing mechanism cylinder constructed as a forme cylinder (07) with a first drive wheel (42) constructed as a gear wheel for rotary driving thereof and a printing mechanism cylinder constructed as a transfer cylinder (06) with a second drive wheel (41, 41') constructed as a gear wheel for rotary driving thereof. The two gear wheels (41, 41', 42) are straight-toothed and form a straight-toothed drive coupling between forme and transfer cylinders, which is directly or indirectly driven mechanically by a drive motor (38) independently of the drive coupling of the respective other printing mechanism. The drive wheels (41, 41') of the transfer cylinders (06) of the two printing mechanisms (04) are arranged in two lines (F1, F2) differing from one another and offset axially from one another, such that there is no tooth engagement between the two. First the drive wheel (42) of the forme cylinder (07) is driven, and thereby the drive wheel (41, 41') of the transfer cylinder (06) is driven, by the drive motor (38) via a gearwheel (37) directly or indirectly driven by the drive motor (38).
摘要:
The invention relates to a dampening roller (6) which functions reliably and can be driven by friction. Said dampening roller has an elastic surface and can be produced economically by placing thrust rings (17, 18) of equal diameter at both ends, said driving rings also being of the same surface material.
摘要:
The invention relates to a dampening system. A surplus dampening means that has not been applied to a transmission roller (3) is supplied through a collecting line to optionally one of several collecting basins (23, 24) by means of a multipath valve (19). Separation of the dispensed liquids is thus possible in a perfectly classifying manner.
摘要:
The invention relates to a dampening system. A surplus dampening means that has not been applied to a transmission roller (3) is supplied through a collecting line to optionally one of several collecting basins (23, 24) by means of a multipath valve (19). Separation of the dispensed liquids is thus possible in a perfectly classifying manner.
摘要:
In a lateral registration device for printing plates with folded ends secured to engraved cylinders, adjacent guide strips carrying register studs can slide axially in a channel located below the folded ends.
摘要:
The invention relates to a printing unit containing at least one printing group (01; 31), which comprises at least two cylinders (03; 04) that form a printing nip (02). At least the two cylinders of the printing group are interconnected in a positive-fit by a drive. Said cylinders can be engaged with one another in a first position (ON), disengaged from one another in a second position (OFF) and disengaged from one another in a third position (STOP) at a great enough distance that a web (06) in the printing operation can be guided between the cylinders without making contact.
摘要:
The invention relates to a device for providing a cylinder with a packing and registers. For positioning register-containing packings (8) on the peripheral surface (4) of cylinders (1) of a rotary printing machine, stops or register pins (12) are used on corresponding fitting strips or supports that are fastened in or on the channel (2) that receives the packing. It is disadvantageous to fasten the pins or fitting strips from the channel side if one wishes to obtain channel openings that are as narrow as possible. The aim of the invention is therefore to allow the register stones to be immobilized against axis-parallel changements of positions without the need of accessing them from the peripheral surface of the cylinder. To this end, the position of the register stones can be changed in the axis-parallel direction of the cylinder and the register stones can be held by a clamping device (13) that can be actuated from the front face of the cylinder.
摘要:
In a lateral registration device for printing plates with folded ends secured to engraved cylinders, adjacent guide strips carrying register studs can slide axially in a channel located below the folded ends.