Abstract: A forming device for reforming a material web into a tube, comprising a shoulder part with a shoulder surface and a prism part with a prism surface, wherein the shoulder surface and the prism surface are connected to one another along a spatial reforming edge, which has at least one reforming edge portion with a slight curvature and at least one reforming edge portion with a strong curvature, wherein in the prism part, at least in the region of a reforming edge portion with a strong curvature, an inner former element with an inner former surface facing the prism surface is arranged in such a manner that between the prism surface and the inner former surface, a gap which runs along the reforming edge is formed, the width of said gap being adjustable.

Abstract: In a method for producing tubular bags, a forming shoulder for shaping a packaging material web into a tubular bag having a laterally offset longitudinal seam includes a shoulder part and a prism part connected to each other along a shaping edge. Half of the shaping edge facing the incoming packing material web lies in the first and second quadrants of the cross-section of the prism part and the seam is formed in the fourth quadrant. Curvature-free surface lines in the second and fourth quadrants originating from the shaping edge approach each other with increasing distance from the prism part, and the shaping edge angle measured between the surfaces of the shoulder part and the inner face of the prism part decreases from the second to the third quadrant and increases again from the third to the fourth quadrant.

Abstract: In a method for producing tubular bags, a forming shoulder for shaping a packaging material web into a tubular bag having a laterally offset longitudinal seam includes a shoulder party and a prism part connected to each other along a shaping edge. Half of the shaping edge facing the incoming packing material web lies in the first and second quadrants of the cross-section of the prism part and the seam is formed in the fourth quadrant. Curvature-free surface lines in the second and fourth quadrants originating from the shaping edge approach each other with increasing distance from the prism part, and the shaping edge angle measured between the surfaces of the shoulder part and the inner face of the prism part decreases from the second to the third quadrant and increases again from the third to the fourth quadrant.

Abstract: The invention relates to a method for the detection of the planar deviations of flexible, web-type flat goods such as films of different materials which can also be used as packaging materials. It is the object of the invention to detect planar deviations directly on the rolling off of a flexible, web-type flat good from a roll in a contact free manner and with a low effort and/or cost. In accordance with the invention, in this connection, at least one ??? is present over at least one region of the width of the flat good on the rolling off with which the position and/or alignment of an imaged run-off edge can be determined with respect to a plane aligned parallel to the axis of rotation of the roll.

Abstract: A shaping shoulder has a shoulder part and a prism part, joined at a shaping edge, for producing a web, shaped longitudinally in the web transport direction and having an open or closed cross-section and at least one area inside the web in which the cross-section is curved outwardly. The shoulder part has a web inlet and extends from the web inlet to the shaping edge. The prism part has an exit for the shaped web and extends from the shaping edge to the exit. The shaping edge is slanted relative to a cross-sectional prism plane. The prism cross-section is curved partially inwardly and outwardly not only in the vicinity of a web edge. The curvature of areas of the shaping edge belonging to outwardly curved areas of the prism part extend counter to the exit and the corresponding shoulder part areas are curved away from the exit.

Abstract: In a method and device for continuous shaping of a plane web to a lengthwise corrugated web, wherein the web in the shaping area is continuously spatially guided and shaped, in that any imaginary line positioned within the center plane of the web and extending in the transport direction during shaping in the shaping area travels approximately the same travel distance, with increasing shaping only those web lines not positioned at the edge are subjected to a deflection perpendicularly to the plane of the web. The maximum value of the deflection is the greater the farther the web line is removed from the edge of the web, respectively.

Abstract: The invention relates to a shaping shoulder and to a device for producing longitudinally shaped webs with an open or closed cross-section and at least one zone inside the web, in which the cross-section curves outwards. Said webs are for example tubular bags comprising longitudinal folds, tubular bags with one or more chambers formed by subdivisions in a longitudinal direction, in addition to webs that are corrugated longitudinally. The shaping shoulder consists of one or more shoulder sections (2) and a prism section (3), which combine to form a three-dimensional shaping edge (5), with zones of the prism section curving outwards. The curvature of the shaping edge sections belonging to said zones, viewed from the centre of the web towards the edge of the web, slopes in the opposite direction to the displacement of the web and the corresponding zones of the shoulder section curve away from the outlet of the tube.