CONVEYER FURNACE Russian patent published in 1998 - IPC

FIELD: furnaces for heat shrinkage of polymeric films on packed products. SUBSTANCE: tunnel 6 of conveyer furnace is mounted inside heat insulated chamber 7 for forced convective heat exchange. Tunnel is secured to heat conductive table top 3 of thermostat 4. Working branch of endless belt conveyer 1 for moving articles is laid onto table top 3. Construction of furnace allows to realize heating of supporting surface of packages by means of thermostat due to heat transfer through table top and conveyer belt directly onto film and separate heating of opened surface of packages in compact tunnel combined with chamber for heating heat-transfer air agent. It provides uniform shrinkage of film. EFFECT: improved design. 2 dwg