Apparatus for the driving of plungers in a feeder of a glass forming machine

US5735926A · kind A · utility

Assignee

• Hermann Heye

Inventors

• Hermann Bogert · Auetal, DE
• Gerhard Geisel · Bückeburg, DE
• Heinz Hermening · Porta Westfalica, DE

Key dates

• Filing date: Feb 21, 1996
• Grant date: Apr 7, 1998
• Expiry date: Feb 21, 2016

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C03B7/086
• WIPO field: Other special machines
• WIPO sector: Mechanical engineering

Abstract

The apparatus comprises at least one plunger (2) and a plunger holder (3) which can be raised and lowered. An arm (18) of a tilt lever (17) is coupled to the plunger holder (3). A link member (22) of a drive system (23) cooperates with the other arm (20) of the tilt lever. The link member (22) is adjustable along said other arm (20) in order to change the stroke of the plunger. The drive system (23) comprises an electric servodrive with a take-off shaft (13), the drive being connected to the link member (22) and being controllable by electronic control means. The link member (22) is arranged on a tie rod (26) which at one free end is coupled (28) to a pivot lever (27) which is mounted fixedly in relation to the apparatus. At a central coupling point (30) of the pivot lever (27) is coupled a push rod (32) whose other end is coupled to a crank (14) of the take-off shaft (13).