Preheating device of thermoforming machine

• Main Authors: ZHU TIANCAI, LIAO TENGFEI, ZHOU LIUDI
• Format: Patent
• Language: English
• Published: 01.10.2014
• Subjects: AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; PERFORMING OPERATIONS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; TRANSPORTING; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

The utility model provides a preheating device of a thermoforming machine. The preheating device comprises a heating plate and a thermal shield mounted on the heating plate, wherein the thermal shield is linked with a cross beam through screws to form a hanging bracket; the hanging bracket is fixed on a rotating shaft; a fixed shaft is arranged below the rotating shaft; the two ends of the fixed shaft are linked with a frame through an upper sleeve and a lower sleeve. According to the preheating device of the thermoforming machine, provided by the utility model, the rotating shaft is arranged in a position where the heating plate is connected so as to form simply supported beams at two ends to hang the cross beam, the fixed shaft is fixed below the rotating shaft to support the rotating shaft, the height of the rotating shaft can be adjusted so as to reduce the die change time, and a preheating effect on sheets of different thicknesses is achieved; besides, the preheating device is simple in structure and convenient to operate, maintain and inspect.