Method and apparatus for conveying and shaping glass sheets

Details Method and apparatus for conveying and shaping glass sheets Method and apparatus for conveying and shaping glass sheets

1993-12-13

1995-03-07

Woodard, Joye L.

Glass manufacturing

Processes

Reshaping or surface deformation of glass preform

65107, 65273, C03B 23033

Patent

active

053954157

ABSTRACT:
A method of and apparatus for precisely shaping heated glass sheets as the sheets advance along a bed of conveyor rolls. The conveyor rolls comprise a core member having axially aligned opposite sections and an arcuately curved central portion, with a flexible sleeve surrounding the core member. The sleeves are rotated in unison about the core members to convey the sheets. The core members are pivotable in unison between a first position where the curved control portions lie in a common plane for conveying the flat sheets and a second, lowered position whereat the curved portions define the shape to which the sheets are to be deformed. Vertically reciprocable top surface press units are mounted above the path of the glass sheets. The press units include curved stationary mandrels having freely rotatable flexible sleeves thereon. The configurations of the mandrels are such that in operative position the mid portion of the mandrel of the first press unit is slightly close to the path defined by the conveyor rolls than the edge portions, and the edge portions of the second mandrel are slightly closer to the path than the mid portion.

REFERENCES:
patent: 3545951 (1970-12-01), Nedelec
patent: 4575389 (1986-03-01), Halberschmidt et al.
patent: 4586946 (1986-05-01), Kramer et al.
patent: 4773925 (1988-09-01), Schultz
patent: 4853019 (1989-08-01), Blank et al.
patent: 5201928 (1993-04-01), Dicks et al.

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