Patent ID: 7717695

Claim:
A thermoforming device for a film, comprising: a shell having a supporting table formed on top thereof, a first axis sleeve being arranged on outer surface of the supporting table; a frame arranged above the supporting table, having a central axis hole formed on the top thereof, and a second axis sleeve being arranged in the axis hole; a screw arranged in the frame and coupled between the first axis sleeve and the second axis sleeve in a perpendicular direction, the screw inserting through the second axis sleeve and extending out of the frame; a motor arranged above the frame, and having a rotating axis to combine with the screw for directly rotating the screw; a guiding base having a screw hole engaged with the screw be driven by the screw for dispersing force and moving in the perpendicular direction; a lower base arranged in the shell and fixed under the supporting table; a upper base arranged in the shell and glidingly arranged between the supporting table and the lower base, the upper base being brought by the guiding base and moving to and fro in the perpendicular direction to close or far away the lower base; a plurality of guiding poles arranged between the supporting table and the lower base, and a plurality of through holes arranged in the periphery of the upper base to correspond to the guiding poles, such that the upper base being glidingly arranged between the supporting table and the lower base; a plurality of guiding columns passed through the supporting table and arranged between the guiding base and the upper base for moving the upper base brought by the guiding base; a male die having heating capability, mounted on bottom of the upper base; a female die having heating capability, mounted on top of the lower base; and a flat plastic thin material arranged on the female die, whereby the motor is driven to rotate the screw for making the guiding base, the guiding columns, the upper base and male die moving to the female die, such that the flat thin material is hot-pressed to form a predetermined thin film product.