Corrugating roller
AssigneeCorrugating Roll Corporation
InventorRobert J. Sukenik
Life of this patent
Estimating the term…
Abstract
A forming roller for corrugating sheet material or for performing other forming operations includes a number of relatively thin discrete forming discs coaxially mounted in compression for rotation with a rotatable mandrel. The forming discs preferably have undulating flutes on their peripheral surfaces to form the roller's forming surface. The forming discs may optionally include irregular openings extending therethrough in an irregular pattern to vary the resonant frequency, thereby reducing the operating noise of the roller. The openings may also be filled with a sound-absorbing material. The roller may also be equipped with means for heating the forming roller sheet material, vacuum means for retaining the sheet material against the roller surface, and sound-absorbing spacer discs between adjacent forming discs.
Claims43
A forming roller for a corrugating machine, comprising:
- a rotatable mandrel;
- a plurality of discrete forming discs coaxially mounted on said mandrel for rotation therewith, said forming discs cooperating to define a forming surface on said mandrel;
- and
- means for compressingly and rigidly securing each of said forming discs to one another on said mandrel, said securing means including a number of fasteners extending axially through less than all of said forming discs on said mandrel and directly attaching each of said forming discs to an adjacent forming disc so that each of said forming discs is positively fixed for rotation with an adjacent forming disc and said forming discs cooperatively define a rigid structure which defines said forming surface.
A forming roller for a corrugating machine, comprising:
- a rotatable mandrel;
- a plurality of discrete forming discs axially mounted on said mandrel for rotation therewith, said forming discs having an axial thickness substantially less than their outside diameter so as to form a number of face-to-face joints between particular pairs of adjacent forming discs to facilitate frictional damping between such pairs of adjacent forming discs and cooperating to define a forming surface on said mandrel, said forming discs being hardened with circumferentially-undulating flutes on their peripheral surfaces prior to being mounted on said mandrel;
- and
- means for compressingly and rigidly securing said forming discs to one another on said mandrel, said securing means including a number of fasteners extending axially through less than all of said forming discs on said mandrel and directly each of said forming discs to an adjacent forming disc so that each of said forming discs is positively fixed for rotation with an adjacent forming disc and said forming discs cooperatively define a rigid structure which defines said forming surface.
A forming roller for a corrugating machine, comprising:
- a rotatable mandrel;
- a plurality of discrete forming discs supported at individual locations along the length of said mandrel for rotation therewith, with said forming discs having circumferentially-undulating flutes on their outer peripheral surfaces which cooperatively define a fluted forming surface on said forming roller and having respective axial dimensions which are substantially less than their respective outer diameters so that particular pairs of adjacent forming discs define radially extending opposed engagement surfaces which facilitate frictional damping between such pairs of adjacent forming discs, and with one or more of said forming discs having a number of irregularly shaped axial openings located in an irregular pattern about its engagement surfaces for varying the resonant frequency of said forming roller along its axial length;
- a plurality of sound-deadening spacer discs, with each said spacer disc being disposed axially along said mandrel between a pair of adjacent forming discs;
- and
- means for compressingly and rigidly securing said forming discs to one another on said mandrel, said securing means including a series of threaded fasteners extending axially through less than all of said forming discs on said mandrel and directly attaching each of said forming discs to an adjacent forming disc so that each of said forming discs is positively fixed for rotation with an adjacent forming disc.
Dependencies are inferred from the claim text.