Printing – Rolling contact machines – Rotary
Patent
1995-07-28
1996-12-31
Fisher, J. Reed
Printing
Rolling contact machines
Rotary
101486, 101352, B41F 1320, B41F 1340, B41F 1344
Patent
active
055883613
DESCRIPTION:
BRIEF SUMMARY
TECHNICAL FIELD
The present invention generally relates to printing machines and, more particularly, to a device and method for selectively inserting or removing operating parts into or from a printing machine.
More particularly, operating parts may be interchangeable parts of a printing machine for letterpress printing, photogravure or rotogravure, offset printing, flexography, electronic printing or silk-screen printing, but also operating parts of a machine incorporated in a printing line for performing related operations such as "hot melt", cold sealing, lamination, "hot foil", punching or embossing,
BACKGROUND ART
An example of a known printing machine is shown in DE-B2-2632455. This known device is designed for the exchanging of such operating parts as an inking unit and a printing cylinder but also a counter-pressure cylinder of a photo- or rotogravure printing machine and comprises a carriage having means for supporting the said parts thereon. After having been run into a position in front of the printing machine, and the front panel thereof has been removed, the wheel-axes of the carriage are turned through 90 degrees by means of a linkage. Thereafter the carriage is as a whole drawn into the housing of the printing machine by means of an endless chain. The whole exchange of the said parts as well as their securing in and loosening from the printing machine, respectively, is done manually. There is not shown or disclosed any means to securely hold the cylinders on the carriage.
SUMMARY OF THE INVENTION
In one aspect of the present invention, a device and method is disclosed for selectively inserting or removing operating parts into or from a printing machine. The device comprises a carriage and a frame mounted on the carriage for movement relative thereto into and out of the printing machine. The frame has a first releasable securing means for releasably securing at least one of the operating parts to be selectively inserted or removed. The device further includes a second releasable securing means, for releasably securing at least one of the operating parts to be inserted or removed, and individual power-driven transfer means adapted after releasing of said second releasable securing means to transfer at least one of the operating parts from the first releasable securing means on the frame to the second releasable securing means in the printing machine after releasing thereof, and vice versa. The device further includes means for bringing the first and second releasable securing means into their securing positions when removing the frame from the printing machine.
It is an object of the invention to provide a device of the said kind which will make possible an easy and non-manual inserting or removing of operating parts as the initially mentioned into or from a printing machine, and where those parts are securely held on the carriage during their transport thereon.
BRIEF DESCRIPTION OF THE DRAWINGS
In the following detailed portion of the present description, the invention will be explained in more detail with reference to the exemplary embodiment of a device according to the invention shown in the drawing, in which
FIG. 1 in perspective shows a carriage with a frame, in which are placed Operating parts to be inserted in a printing machine,
FIGS. 2-5 show various stages during the insertion of the operating parts in the printing machine, and
FIG. 6 shows another carriage adapted for holding one of the operating parts.
FIG. 7 is an end view of the carriage shown in FIG. 6.
DESCRIPTION OF THE PREFERRED EMBODIMENT
FIG. 1 shows a carriage 1, on which a frame 2 is supported for translatory movement transversely of the direction of movement of the carriage, said frame 2 supporting a plate cylinder 3, a doctor blade 4, an inking cylinder 5 and an ink trough 6, all to be inserted into a printing machine 13. As shown with an arrow, the carriage 1 may be moved in through the front side of the printing machine 13, the front panel of which has previously been removed.
As may be seen more clearly
REFERENCES:
patent: 4137843 (1979-02-01), Ottenhue
patent: 4887531 (1989-12-01), Ichikawa et al.
patent: 5142978 (1992-09-01), Borel
Fisher J. Reed
Werner Kammann Maschinenfabrik GmbH
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