Retention chuck for machines for producing glass containers
AssigneeSCHOTT Schweiz AG
InventorsMarcel TREMP, Marco OTERO
Life of this patent
Estimating the term…
Abstract
A retention chuck for glass pipes for machines producing glass containers is provided. The retention chuck has a central supply channel for the glass pipes, a plurality of adjustable clamping jaws arranged at the lower end of the supply channel and so as to be distributed around a centerline of the channel. The spacing of the jaws from the center line of the supply channel is adjustable by an actuation element. A coupling element couples the jaws to the actuation element. Guides guide the adjustment movement of the clamping jaws perpendicularly, radially inwardly relative to the center line.
Claims20
A retention chuck for glass pipes, comprising:
- a central supply channel for the glass pipes, the central channel having a lower end and a center line;
- a plurality of clamping jaws arranged at the lower end and distributed around the center line, wherein the plurality of clamping jaws have a spacing from the center line that is adjustable;
- an actuation element configured for common adjustment of the spacing of all of the plurality of clamping jaws;
- a coupling element that couples the plurality of clamping jaws to the actuation element, the coupling element comprises a plurality of levers, each lever being connected in an articulated manner to the actuation element and to a respective one of the plurality of clamping jaws;
- and
- a guide for each of the plurality of clamping jaws, the guides guiding the common adjustment of plurality of clamping jaws, respectively, perpendicularly, radially inwardly relative to the center line.
A retention chuck for glass pipes, comprising:
- a central supply channel for the glass pipes, the central channel having a lower end and a center line;
- three clamping jaws arranged at the lower end and evenly distributed around the center line, wherein the three clamping jaws have a spacing from the center line that is adjustable;
- an actuation element configured for common adjustment of the spacing of all three of the three clamping jaws, the actuation element having a flange;
- three levers, each lever being connected in an articulated manner to the actuation element and to a respective one of the three clamping jaws;
- a single spring arranged concentrically around the center line;
- and
- a spring stop compressing the single spring between the spring stop and the flange, the single spring being configured and positioned to provide a radially active clamping force to the three clamping jaws towards the center line, the spring stop having a position along the center line that is adjustable to adjust the radially active clamping force.
Dependencies are inferred from the claim text.