Glass gob weight control assembly for a glassware molding machine

摘要

An assembly for controlling the weight of a glass gob on a glassware molding machine has a punch for at least partly penetrating the gob and controlled by a fluidic linear actuator having an outer sleeve of paramagnetic material, and a piston which slides inside the sleeve; the piston being connected integrally to the punch; and movement of the piston being controlled by a linear transducer having a movable member fitted to the piston, and a fixed member located outside the sleeve.

主权项

1. A glass gob weight control assembly for a glassware molding machine, the assembly comprising:
a punch for at least partly penetrating a glass gob; a fluidic linear actuator for moving said punch, said fluidic linear actuator comprising an outer sleeve and a piston that slides inside said outer sleeve, said piston being connected integrally to said punch and being movable between two limit positions, said two limit positions being a withdrawn position and a forward position in which said punch is inserted inside said glass gob; and a transducer for determining a position of said piston between said withdrawn and forward positions, said outer sleeve being made of paramagnetic material, said transducer comprising a magnetic movable member fitted to said piston and a fixed member located outside said outer sleeve and cooperating with said magnetic movable member, said fixed member contacting said outer sleeve.