Setting device for bending layer material more particularly paper

Abstract

A setting device for bending layer material is provided, which includes a substantially stationary base frame, a running path defining a running direction and a cross-sectional running plane, and first and second guide faces for guiding the layer material. The first guide face includes a bending face on a bending body and the second guide face includes a deflection face. The first and second guide faces are operationally directly interconnected by the layer material when passing between the first and second guide faces. The bending body includes a bending flank directly connecting to the bending face. The bending flank and the deflection face commonly bound a gap traversed by the layer material and defining a gap width, the bending flank defining a gap plane at the gap from the deflection face up to the bending face. The layer material defines a free length which is not in contact with the deflection and bending faces. Positioning means are included for varying the gap width. The positioning means displace the deflection face relative to the bending face to a bending position in which the free length of the layer material is equal to or less than the deflection radius. Oscillations of the layer material in the free length are prevented, thus preventing tearing of the material.

What is claimed is:  
     
         1 . A setting device for bending layer material defining remote first and second layer faces and a layer thickness, said setting device comprising: 
 a stationary base frame;    a running path defining a running direction and a cross-sectional running plane, and    first and second guide faces for guiding the layer material, said first guide face including a bending face on a bending body and said second guide face including a deflection face, said deflection face defining a deflection axis and a deflection radius, said bending face defining a bending axis and a bending radius smaller than said deflection radius, said first and second guide faces being operationally directly interconnected by the layer material when passing between said first and second guide faces, said bending body including a bending flank directly connecting to said bending face, said bending flank and said deflection face commonly bounding a gap traversed by the layer material and defining a gap width, said bending flank defining a gap plane at said gap from said deflection face up to said bending face, the layer material defining a free length which is not in contact with said deflection and bending faces; and    positioning means for varying said gap width, wherein said positioning means displaces said deflection face relative to said bending face to a bending position in which the free length of the layer material is equal to or less than said deflection radius.    
     
     
         2 . The setting device according to  claim 1 , wherein the layer material is continuously fed to and deflected on said deflection face along said running path, said positioning means displacing said deflection face to be located tangentially and close to said bending flank with said gap width smaller than fifty times the thickness of the material layer.  
     
     
         3 . The setting device according to  claim 1 , wherein said deflection face is adjustable relative to said base frame and said bending face, said first and second guide faces being adjustable with respect to each other about at least one positioning axis oriented parallel to said running plane, when in said bending position a common axial plane of said deflection axis and said positioning axis traversing said bending flank.  
     
     
         4 . The setting device according to  claim 1 , wherein said bending face is pivotable about a setting axis oriented parallel to said bending axis and spaced from said bending axis by less than said deflection radius, and wherein said setting device further comprises a locking means for positionally locking said bending face when said locking means is adjusted about said setting axis.  
     
     
         5 . The setting device according to  claim 1 , and further defining arcs of wrap including a first arc of wrap of said bending face and a second arc of wrap of said deflection face, said positioning device varying at least one of said first and second arcs of wrap, said bending flank connecting planarly to said bending face, said deflection face being located upstream of said bending face and being operationally fed by a straightened length of the layer material.  
     
     
         6 . The setting device according to  claim 1 , wherein said gap width is operationally variable, said deflection face being circular and said bending flank being planar up to said bending face.  
     
     
         7 . The setting device according to  claim 1 , wherein said deflecting face includes a first subface and a second subface spacedly opposing said first subface, said bending face including a first curling face and a second curling face spacedly opposing said first curling face, said positioning means displacing at least one of said guide faces to pass the layer material between said first and second curling faces and between said first and second subfaces linearly and without contacting said first and second curling faces.  
     
     
         8 . The setting device according to  claim 1 , wherein said deflection face includes a first subface and a second subface spacedly opposing said first subface, said positioning means supporting at least one of said first and said second subfaces against at least one of the first and second layer faces, when supporting said second subface by the layer material, said positioning means lifting the layer material entirely off said second subface.  
     
     
         9 . The setting device according to  claim 1 , wherein at least one of said first and second guide faces includes first and second subfaces which oppose each other transverse to the layer material; 
 wherein said running path extends between said first and second subfaces; and    wherein said setting device further comprises setting means for variably inclining and operationally setting stationary said bending flank relative to said base frame.    
     
     
         10 . The setting device according to  claim 9 , wherein said first and second subfaces are spaced from each other by more than the layer thickness, said first and second subfaces being operationally displaceable with respect to said bending face, said bending face defining running sides, namely a feed side at which the layer material runs onto said bending face and an exit side at which the layer material runs off said bending face, said first and second subfaces being commonly located at only one of said running sides.  
     
     
         11 . The setting device according to  claim 1 , and further including setting flanks including said bending flank and intersecting to provide a setting edge including said bending face, wherein said setting flanks are oriented at right angles with respect to each other, said setting edge being cross-sectionally arcuated about said bending axis, setting means being included and variably inclining said bending flank relative to said deflection face while said deflection axis is stationary.  
     
     
         12 . The setting device according to  claim 1 , wherein said bending body includes angular faces defining said bending flank and said bending face, at least one of said angular faces defining at least two separate said bending faces for alternately engaging the layer material upon reversing said bending body relative to a bending support operationally fixedly directly supporting said bending body at a side remote from said bending flank.  
     
     
         13 . The setting device according to  claim 1 , wherein said deflection face is arcuated and said bending flank is planar, said deflection face being displaceable into and out of said bending position, where said bending flank is oriented tangentially with respect to said deflection face and directly opposes said deflection face for bounding said gap with said deflection face, said positioning means displacing said deflection face out of contact with the layer material when on said running path.  
     
     
         14 . The setting device according to  claim 1 , further comprising an adjusting direction oriented parallel to said bending flank and transverse to said gap, wherein adjusting means are included for displacing said deflection face and said bending face with respect to said base frame parallel to said adjusting direction commonly and separately with respect to each other, locking means being included and rigidly holding said bending face relative to said base frame while the layer material runs over said bending face.  
     
     
         15 . The setting device according to  claim 1 , wherein at least one of said deflection and bending faces is pivotable about a guide axis oriented transverse to said bending axis.  
     
     
         16 . The setting device according to  claim 1 , and further including a drive motor for positively displacing at least one of said guide faces, said drive motor defining a central motor axis, wherein said central motor axis is oriented upright and transverse to said running plane, an output shaft interconnecting said drive motor and said at least one guide face, said output shaft being rotary and fixedly connected to said at least one guide face, said output shaft being oriented transverse to said central motor axis.  
     
     
         17 . The setting device according to  claim 1 , and further including a plurality of individual subdevices each separately including said deflection and bending faces, wherein said individual subdevices are provided for simultaneously but separately bending separate layer material, said base frame being common for said subdevices, said subdevices being juxtaposed, said base frame bilaterally including girders bilaterally supporting said individual subdevices, said girders and said individual subdevices forming a module detachable from said base frame.  
     
     
         18 . A setting device for bending layer material to vary curl characteristics of the layer material having remote first and second layer faces, said setting device comprising: 
 a stationary base frame;    a running path defining a running direction and a cross-sectional running plane; and    guide faces, namely first and second guide faces for separately guiding the layer material, said first guide face including a bending face for varying the curl characteristics and said second guide face including a deflection face comprising first and second subfaces, said bending face being spaced from said first and second subfaces in said running direction, said first subface defining a first deflection axis and said second subface defining a second deflection axis, said bending face defining a bending axis and a bending radius, at least one of said first and second subfaces defining a deflection radius larger than said bending radius, said bending face defining running sides, namely a feed side at which the layer material runs toward said bending face and an exit side at which the layer material runs off said bending face, said first and second subfaces being located at only one of said running sides, wherein positioning means are included for operationally directly interconnecting one of said first and said second subfaces and said bending face by the layer material when passing between said deflection face and said bending face.    
     
     
         19 . The setting device according to  claim 18 , wherein said positioning means displace said first and second subfaces relative to said bending face while said first deflection axis is stationary relative to said second deflection axis.  
     
     
         20 . The setting device according to  claim 18 , wherein said first subface opposes said second subface while the layer material passes between said first and second subfaces.  
     
     
         21 . The setting device according to  claim 18 , wherein said deflection radius of both said first and second subfaces is larger than said bending radius.  
     
     
         22 . The setting device according to  claim 18 , wherein said deflection radius of both said first and second subfaces is equally large.  
     
     
         23 . The setting device according to  claim 18 , and further including a deflection support mounting said first and second subfaces, wherein said positioning means displace said deflection support relative to said base frame.  
     
     
         24 . The setting device according to  claim 18 , and further including first and second bending supports connecting said bending face to said base frame, wherein said bending axis operationally displaceably connects to said first bending support, said first bending support operationally displaceably connecting to said second bending support, said second bending support rigidly connecting to said base frame.  
     
     
         25 . The setting device according to  claim 18 , wherein said bending axis is operationally reversibly displaceable relative to said running path in a first setting direction and a second setting direction oriented transverse to said first setting direction.  
     
     
         26 . The setting device according to  claim 25 , and further including a first setting axis and a second setting axis oriented transverse to said first setting axis, wherein said bending axis is displaceable in said first setting direction about said first setting axis oriented parallel to said bending axis, additionally and independently said bending axis being displaceable in said second setting direction about said second setting axis.  
     
     
         27 . The setting device according to  claim 18 , and further including a running deflector spaced from said deflection face and from said bending face, wherein for passing the layer material past said bending face without altering the curl characteristics on said bending face said deflection face is displaceable from close to said bending face to a guide position close to said running deflector, when in said guide position said running deflector and said deflection face deflecting the layer material in a S-wrap.  
     
     
         28 . The setting device according to  claim 27 , wherein said running deflector includes a first running face and a second running face spacedly separate from said first running face, said guide position including first and second guide positions and the S-wrap including first and second S-wraps, in said first guide position the first S-wrap running over said first running face and in said second guide position the second S-wrap running over said second running face, the first S-wrap being arcuated counter the second S-wrap.  
     
     
         29 . The setting device according to  claim 27 , wherein said running deflector deflects the layer material about a running axis, said running axis being operationally displaceable relative to both said base frame and said bending face.