Adhesive bonding and miscellaneous chemical manufacture – Surface bonding means and/or assembly means therefor – With work feeding or handling means
Patent
1995-02-13
1997-07-15
Engel, James
Adhesive bonding and miscellaneous chemical manufacture
Surface bonding means and/or assembly means therefor
With work feeding or handling means
156384, 156461, 493321, B32B 3100
Patent
active
056479492
DESCRIPTION:
BRIEF SUMMARY
FIELD OF THE INVENTION
The invention relates to a folding apparatus for web-fed rotary printing presses. The present invention is directed to a folder having interchangeable cross gluing and ribbon stapling devices. The convertible folder utilizes a receiving unit or work station which is situated intermediate longitudinal and cross folding devices. The receiving unit can accommodate both cross gluing devices and ribbon stapling devices. Provision is made in the receiving unit to facilitate the expeditious installation or removal of a cross gluing device or a ribbon stapling device in either one of two mounting locations in the receiving unit.
DESCRIPTION OF THE PRIOR ART
It is known to install transverse gluing devices in folding apparatus to provide a continuous paper web with a transverse application of glue and then to bring this paper web together with a further paper web and to glue these two together in this way.
A transverse gluing device of this type is shown in EP 0 096 832 B1, wherein glue from a reservoir is provided axially to an application cylinder and is passed to the paper web once or twice during each revolution of the cylinder by means of coaxially extending application strips. The employment of such transverse gluing devices is of particular advantage when eight- or twelve-page DIN A4 products are produced which can be stacked in increased amounts.
It is furthermore known to employ so-called continuous stapling machines in folding apparatus of web-fed rotary printing presses for transverse stapling of signatures of more the twelve pages in DIN A4 format. In the course of this, a reduced stackability of the stapled products must be accepted in comparison with transversely glued products because of the presence of staples in the crease of the fold. A continuous stapling machine of this type is known from DE-PS 11 89 562.
However, in connection with the state of the art it is disadvantageous that, because of the fixed installation of either a transverse gluing device or a continuous stapling machine (transverse stapler) in a folding apparatus between the linear folding device and the transverse folding apparatus, either transversely-glued or transversely stapled products were possible.
SUMMARY OF THE INVENTION
It is the object of the present invention to provide a folding apparatus with a device for the transverse connection of a plurality of strips of paper webs guided on top of each other and a transverse folding machine downstream thereof, by means of which it is possible to further increase the variety in the production of folded products by means of this folding apparatus in addition to the known options of producing linearly or transversely folded products whose pages are connected with each other.
As will be discussed in detail in the description of the preferred embodiment which is set forth subsequently, the folder for web-fed printing presses in accordance with the present invention utilizes spaced longitudinal and cross folding devices to fold and assembly printed products. A receiving unit or work station is positioned intermediate the longitudinal and cross folding devices. This receiving unit is able to support two web or web segment joining devices in two mounting locations. These web joining devices may be two cross-gluing devices, two ribbon stapling devices, or one of each. These web or ribbon joining devices are interchangeable in the receiving unit by use of a travelling crane and suitable support tracks. Each such joining device is quickly connectable to a drive means and to the required electric, pneumatic, hydraulic or other lines by suitable quick connect couplings.
The advantages which can be achieved by means of the invention consist particularly in that the above mentioned disadvantages in the state of the art are avoided. Furthermore, by means of a folding apparatus it is possible to produce folded products which are either only transversely glued, or only transversely stapled, or transversely stapled on the outside with transversely glued inserts, or whi
REFERENCES:
patent: 2236229 (1941-03-01), Worthington
patent: 4708300 (1987-11-01), Goetz
Albert-Frankenthal Aktiengesellschaft
Engel James
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