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US 2003/0170110 A1Published application
Method and device for stacking flat objects
AssigneeFerag AG
InventorErwin Muller
Life of this patent
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AssigneeFerag AG
InventorErwin Muller
Estimating the term…
Stacks (20) are formed, whereby flat objects (2), in particular, printed products, are carried individually by retaining elements (3) in the region of an objects edge (10), groups (1) of objects (2) supported one behind the other are arranged in the form of a stack, whereby the regions of the objects opposite to the retained edges (10) are superimposed, whilst the objects remain fixed, the groups of objects, arranged in the form of a stack, are stabilised by means of suitable agents and only then are the objects (2) released from the retainer unit thereof. A stabilisation of the groups (1), arranged in the form of a stack, is achieved, whereby the regions of the objects opposite the retained edges (10) are placed on a stacking table (23), which may move vertically in a stacking shaft (22) and/or on an auxiliary support (31) and pressed or tightened with a suitable means. Before being placed on a stacking table (23), sequentially formed groups (1), arranged in the form of a stack, may be alternately rotated about the stacking axis (A), such that they are positioned as layers of an alternating stack in the stacking shaft (22). Said stacking is applicable, in particular, for the stacking of printed products and has the advantage over conventional stacking methods, that significantly fewer uncontrolled and uncontrollable movements of the products occur.
Method for producing stacks or stack sections (20) of flat objects (2) being supplied for stacking arranged serially in a supply stream, characterized in that in the supply stream, the objects (2) are held gripped individually in a zone of an edge (10), are oriented substantially transverse to the conveying direction (F) and essentially parallel to one another and are aligned with one another, that groups (1) of objects (2) being supplied one behind the other are arranged in a stack-like manner, that the stack-like arrangements are stabilised and that for forming the stacks or stack sections, the objects (2) of the groups (1) arranged in a stack-like manner are released from being held, wherein in the groups (1) arranged in stack-like manner, object zones opposite the held edges (10) lie adjacent to one another and the held object edges are aligned with one another.
Device for forming stacks or stack sections (20) from flat objects (2) being supplied serially in a supply stream, the device comprising a conveying system for feeding-in the supply stream, a stacking means and a conveying-away means for the stacks being produced, characterized in that the conveying system comprises a plurality of holding elements (3) and a stretch of rail 6, wherein the holding elements (3) are equipped for holding a flat object (2) in an edge zone (10) and are displaceable along the stretch of rail (6) in such a manner, that objects (2) transported one behind the other are capable of being transported in groups (1), in which the objects (2) are substantially parallel to one another and aligned with one another, and that the stacking means comprises a means for arranging in a stack-like manner one group (1) of the objects at a time and for stabilizing the group (1) arranged in stack-like manner and a control means for releasing the objects (2) in the stabilized group (1) arranged in stack-like manner from the holding elements.
Dependencies are inferred from the claim text.