Cycle of mold movement while press bending glass sheets

Details Cycle of mold movement while press bending glass sheets Cycle of mold movement while press bending glass sheets

1980-01-11

1981-08-25

Kellogg, Arthur D.

Glass manufacturing

Processes

Reshaping or surface deformation of glass preform

65104, 65107, 65268, 65273, C03B 2303

Patent

active

042857155

ABSTRACT:
In press bending glass sheets delivered while heat-softened into a shaping station between an upper vacuum mold and a lower lifting mold wherein the glass sheet is first lifted on said lifting mold, transferred by suction to said vacuum mold, lifted while engaged by said vacuum mold to provide clearance for entry of a ring-like member to a position below said vacuum mold, stopping the suction in said vacuum mold to drop said glass sheet onto said ring-like member and removing said glass sheet from said shaping station while supported on said ring-like member, the rate of production is increased by lowering said vacuum mold into a parking position closely adjacent to the uppermost position permitted for said lifting mold to provide clearance for delivering a succeeding glass sheet to said shaping station and reducing the vertical distance needed to lift the glass sheet to a position where it can be transferred by suction to the vacuum mold once the ring-like member clears said shaping station.

REFERENCES:
patent: 1889881 (1932-12-01), Thompson
patent: 3508903 (1970-04-01), Seymour
patent: 3607187 (1971-11-01), McMaster
patent: 3846104 (1974-11-01), Seymour
patent: 4092141 (1978-05-01), Frank
patent: 4187095 (1980-02-01), Frank
patent: 4197108 (1980-04-01), Frank et al.
patent: 4202681 (1980-05-01), McMaster et al.

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