Method of and apparatus for vacuum shaping a glass sheet

Details Method of and apparatus for vacuum shaping a glass sheet Method of and apparatus for vacuum shaping a glass sheet

C - Chemistry, Metallurgy

03

B

49/22

C03B 23/035 (2006.01) C03B 23/03 (2006.01)

Patent

CA 1203384

14226 Abstract of the Disclosure A method of deforming a plastic glass sheet from a generally two-dimensional shape into a generally three-dimensional shape at first supports the plastic glass sheet with its two-dimensional upper face juxtaposed underneath the three dimensional lower face of a vacuum-forming die. The sheet and die are then relatively displaced vertically toward each other so that one portion of the sheet face engages a respective portion of the die face. The two portions are secured together by suction so that the sheet adheres at the one portion of its face to the respective portion of the die face. Finally, the sheet and die are relatively displaced with deformation of the sheet to press the rest of the sheet face and die face together and adhere the faces entirely together by suction. The sheet is supported on a planar conveyor that is rocked about a horizontal axis to engage the faces together. This conveyor and the die can be relatively rocked about a horizontal axis, or even about two transverse horizontal axes.

438221

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