Patent ID: 9409326
Filing Date: 2016-08-09
CPC Classification: B27N,B29C,B29K,B29L,B30B

Claim Text:
1. A double belt press with a first, lower revolving plastic belt and with a second, upper revolving plastic belt, the first and second plastic belts having a first, low flexural rigidity, a product gap formed between mutually confronting and opposed strands of the first and second plastic belts for the purpose of shaping a plate-like product, a first revolving lower steel belt and a second revolving upper steel belt, the first and second steel belts having a second flexural rigidity which is high in relation to the flexural rigidity of the first and second plastic belts, a shaping portion formed between mutually confronting and opposed strands of the first and second steel belts, the shaping portion forming part of the product gap, wherein during operation the first, lower steel belt runs in the shaping portion parallel to and so as to bear against a rear side, facing away from the product gap, of the first, lower plastic belt, and during operation the second, upper steel belt runs in the shaping portion parallel to and so as to bear against a rear side, facing away from the product gap, of the second, upper plastic belt, the double belt press further including a first heating device disposed adjacent the rear side of the second, upper plastic belt and spaced upstream, with respect to a direction of travel of the opposed strands of the first and second plastic belts, of the shaping portion to heat the second, upper plastic belt and/or a first cooling device disposed adjacent the rear side of the second, upper plastic belt and spaced downstream, with respect to the direction of travel of the opposed strands of the first and second plastic belts, of the shaping portion to cool the second, upper plastic belt, and a second heating device disposed adjacent the rear side of the first, lower plastic belt and spaced upstream, with respect to the direction of travel of the opposed strands of the first and second plastic belts, of the shaping portion to heat the first, lower plastic belt and/or a second cooling device disposed adjacent the rear side of the first, lower plastic belt and spaced downstream, with respect to the direction of travel of the opposed strands of the first and second plastic belts, of the shaping portion to cool the first, lower plastic belt.