Manufacturing container or tube from paper; or other manufacturi – With cutting – breaking – tearing – or abrading – Including assembling or disassembling of distinct members
Patent
1998-05-05
2000-02-15
Kim, Eugene L.
Manufacturing container or tube from paper; or other manufacturi
With cutting, breaking, tearing, or abrading
Including assembling or disassembling of distinct members
493358, 493440, 493479, 270 41, B31B 4900
Patent
active
060246847
DESCRIPTION:
BRIEF SUMMARY
FIELDS OF THE INVENTION
The present invention relates to a device for producing folded products using longitudinal formers in which the longitudinal former is movable vertically.
DESCRIPTION OF THE PRIOR ART
In the course of producing folded products, for example telephone directories, it is known to arrange double-width transverse folding devices in connection with longitudinal formers. A double-width transverse folding device is represented in DE-PS 7 24 900, wherein several stationary longitudinal formers are placed upstream of it.
It is disadvantageous that each of these several stationary longitudinal formers has a separate paper feed and a separate former inlet. If it is intended to vary the thickness, i.e. the number of pages, of the two folded products coming out of the double-width transverse folding device, this is only possible by means of a changed web feed, which requires much space, and angle bars, not represented.
Furthermore, a longitudinal former is known from DE 36 24 990 C2, wherein the inclination of the former can be slightly displaced and tis former can be moved independently of other longitudinal formers in order to feed, in this way, the formed products, generated in the course of the first longitudinal folding process, laterally offset to a transverse folding device. The lateral offset is used as an engagement surface for the subsequent separation of the folded products, for example by means of grippers, and is only suitable for short distances, i.e. for products which only need to be "slightly offset". It is not possible to vary the product thickness of folded products without an increased outlay.
SUMMARY OF THE INVENTION
It is the object of the present invention to create a longitudinal former for a multi-width transverse folding device.
In accordance with the invention, this object is attained by use of a movable longitudinal former. This former is vertically movable by utilization of a parallelogram-like pivot square. This pivot square consists of at least two couplings which are of the same length and which are pivotable parallel with each other.
The advantages which can be achieved by means of the present invention reside in particular in that, even when employing a multi-width transverse folding device, only one longitudinal former feed device, which can be commonly driven, is required. The product thickness as well as the position of the folded products in the multi-width transverse folding device can be respectively varied in the end position by vertical movement of the longitudinal former. The invention is particularly suited for manufacturing folded products for the production of telephone directories. In addition, the structural height of the folding apparatus is kept low.
BRIEF DESCRIPTION OF THE DRAWING
An exemplary embodiment of the present invention is represented in the drawings and will be described in greater detail in what follows:
Shown are in:
FIG. 1, a schematic elevation view of a double-width transverse folding device with left and right longitudinal formers arranged above it, in accordance with the present invention, wherein the two right longitudinal formers are in a lower position;
FIG. 2, a view in accordance with FIG. 1 taken in the direction indicated by arrow A in FIG. 1, but with a representation of the paper webs above the longitudinal formers, wherein paper trains enter both inlets of the transverse folding device;
FIG. 3, an arrangement similar to the one shown in FIG. 2, but with paper trains entering only the second inlet of the transverse folding device;
FIG. 4, an arrangement as in FIG. 2, but with paper trains entering only the first inlet of the transverse folding device;
FIG. 5, a schematic view of a double-width transverse folding device with left and right longitudinal formers arranged above it, in accordance with the present invention wherein all left and all right longitudinal formers are arranged in an upper position, and all paper trains enter the first inlet of the transverse folding device;
FIG. 6, a view in accordance wi
REFERENCES:
patent: 3191926 (1965-06-01), Ramaika
patent: 4779859 (1988-10-01), Knauer
patent: 5303909 (1994-04-01), Maylander
patent: 5328437 (1994-07-01), Maylander et al.
patent: 5503379 (1996-04-01), Michalik et al.
patent: 5605267 (1997-02-01), Whitten
Maylander Edgar
Michalik Horst Bernhard
Kim Eugene L.
Koenig & Bauer Aktiengesellschaft
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