Device for supporting press belts or roller-supported double belt presses

Claim 1

Device for supporting press belts on a roller-supported double belt press for effecting the application of surface pressure, comprising a roller bed having an inlet end at one end thereof and an outlet end at the opposite end thereof, a press belt arranged to pass over said roller bed in the direction from the inlet end to the outlet end, means for forming a hermetic seal between said roller bed and said press belt, said roller bed comprises a heating plate arranged in spaced relation from said press belt, a plurality of laterally spaced support bearing strips having a first direction and a second direction located on said heating plate and extending in the first direction toward said press belt and in the second direction in the direction between the inlet and outlet ends of said roller bed, said support bearing strips having spaced bearing bores therethrough transversely of the inlet end-outlet end direction of said roller bed and with spaced openings extending therethrough between adjacent said bearing bores, shafts extending across said roller bed transversely of the inlet end-outlet end direction thereof and through said bearing bores extending transversely of the second direction of said support bearing strips with said bearing bores supporting said shafts, a plurality of rollers mounted and serially arranged on each of said shafts, said rollers mounted on adjacent said shafts disposed in spaced relation and the ends of said rollers on adjacent said shafts are offset in the axial direction thereof, filling bodies located in the spaces between said rollers on laterally adjacent said shafts, at least certain of said rollers extending axially through said openings in said support bearing strips with a capillary gap formed between each said roller and the surface of said opening in said support bearing strips through which it extends, said rollers are closely spaced in said roller bed from said heating plate forming a rolling gap therebetween, the surfaces of said support bearing strips and said filling bodies located adjacent to said press belt are spaced from said press belt forming bearing interstices therebetween, and the width of said capillary gaps, rolling gaps, and bearing interstices is limited to a minimum determined by the manufacturing tolerances of the parts forming the device and said roller bed is arranged to receive a lubricant and said hermetic seal permits said lubricant to be flushed through the roller bed passing through said capillary gaps, rolling gaps, and bearing interstices.