Method of and apparatus for producing corrugated sheet with plane-parallel outer edge surfaces
AssigneeUmformtechnik Stade GmbH
InventorIngolf Doose
Life of this patent
Estimating the term…
Abstract
Corrugated sheet is produced by initially forming a corrugation running to the edge of the sheet between a pair of stamping dies or platens, whereupon at least at one end of the corrugation, end pieces with integrated cylinders displace respective rams to flatten the corrugation into the original plane of the workpiece to form plane parallel edge surfaces allowing straight edges of the sheet to be welded to adjacent sheets.
Claims8
An apparatus for producing corrugated sheet with plane-parallel outer edge surfaces, comprising:
- an upper and a lower press platen having mutually facing complementary formations for deforming a planar sheet workpiece to produce a corrugation therein extending over said workpiece to an edge thereof;
- at least one main fluid-operated cylinder connected with one of said platens for displacing same to produce said corrugation;
- and
- respective end pieces on said platens in a region of said edge of said workpiece, said end pieces being formed with:
- respective fluid-powered force-generating units, and
- respective shaping rams configured to define a contour of said corrugation in one relative position of said rams and said one of said platens during production of said corrugation and displaceable by said units relative to said one of said platens to flatten an end of the corrugation at said edge and impart a plane-parallel configuration to said region of said edge.
A method of producing corrugated sheet with plane-parallel outer edge surfaces, comprising the steps of:
- (a) pressing a planar sheet workpiece between an upper and a lower press platen having mutually facing complementary formations to deform the sheet workpiece out of a plane thereof to produce a corrugation therein extending over said workpiece to an edge thereof;
- and
- (b) thereafter flattening an end of the corrugation at said edge by pressing said end of the corrugation back into said plane to impart a plane-parallel configuration to a region of said edge.
A method of producing corrugated sheet with plane-parallel outer edge surfaces, comprising the steps of:
- (a) pressing a planar sheet workpiece between an upper and a lower press platen having mutually facing complementary formations to deform the sheet workpiece out of a plane thereof to produce a corrugation therein extending over said workpiece to an edge thereof;
- and
- (b) thereafter flattening an end of the corrugation at said edge into said plane to impart a plane-parallel configuration to a region of said edge while said workpiece is clamped between said platens.
Dependencies are inferred from the claim text.