Pneumatic plunger mechanism for a glassware forming machine

Details Pneumatic plunger mechanism for a glassware forming machine Pneumatic plunger mechanism for a glassware forming machine

C - Chemistry, Metallurgy

03

B

C03B 11/10 (2006.01) C03B 9/16 (2006.01) C03B 9/193 (2006.01)

Patent

CA 2152939

Plunger mechanism (20) for use in forming a parison (28) from a gob of fluid glass in a mold cavity (30) of an individual section (IS) (26) of a glassware forming machine is fully pneumatically controlled. The plunger mechanisms (20) may be of either a blow-and-blow or press-and-blow type. The plunger mechanism (20) is suspended from the frame (24) of the IS (26) by a plunger case assembly (22). The plunger case assembly (22) allows the plunger mechanisms (20) to be easily interchanged or replaced, to be adjusted to accommodate different types of operation and sizes and configurations of glass article produced, while communicating pressurized air to the plunger mechanisms (20) to achieve these effects. After formation of the parison (28) in the mold cavity (30) the cavity halves (32) separate and the parison (28) is transferred to a blow mold cavity (38) in which the glassware is formed.

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