Heating arrangement for plastic film or sheet thermoforming tool has lower heating plate with larger dimensions than upper heating plate and supports spacers extending to tool base

摘要

A heating arrangement on a tool supporting table (7) of the thermoforming machine comprises a lower heating plate (12) with external outer dimensions matched to the maximum forming area of the forming station (1) and an upper heating plate (23) at a distance from the lower plate. - A heating arrangement on a tool supporting table (7) of the thermoforming machine comprises a lower heating plate (12) with external outer dimensions matched to the maximum forming area of the forming station (1) and an upper heating plate (23) at a distance from the lower plate. The upper heating plate is in contact with the forming tool (8) and has external dimensions matched to the minimum forming surface of the forming station. In the area of the lower plate projecting beyond the upper plate are spacers (24) extending from the lower heating plate to the thermoforming tool base plate (20).