Apparatus for handling molten glass

C - Chemistry – Metallurgy – 03 – B

Patent

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Details

C03B 7/086 (2006.01)

Patent

CA 2304039

Apparatus for extruding glass (30) from an orifice (31) at the base of a feeder by means of a vertically reciprocating plunger (4) in order to enable glass gobs to be formed (for subsequent moulding into glass objects such as containers) is described. According to the invention, the vertically reciprocating motion of the plunger (4) is generated by means of a linear motor (8) having an actuation member which moves in order to move the plunger (4) correspondingly. The actuation member may bear on the underside of a bridge piece (3) mounted for vertical movement up and down on an appropriate guide structure, the end of the bridge (3) remote from the motor and guide structure having the top end of the plunger (4) fixed to it.

On décrit un appareil servant à extruder du verre (30) d'un orifice (31) situé à la base d'un distributeur, au moyen d'un piston plongeur à mouvement alternatif vertical (4) pour permettre la formation de cueillages (destinés au moulage ultérieur d'objets de verre tels que des contenants). Selon l'invention, le mouvement alternatif vertical du piston plongeur (4) est induit par un motur linéraire (8) équipé d'un élément d'actionnement mobile qui entraîne dans son mouvement le piston plongeur (4). Ledit élément d'actionnement peut être fixé sur la face inférieure d'une pièce en pont (3) montée de manière à exécuter un mouvement vertical de haut en bas sur une structure de guidage appropriée, l'extrémité du pont (3) étant éloignée du moteur, et le sommet du piston plongeur (4) étant fixé à la structure de guidage.

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