Guide roller for a stamping machine
AssigneeLeonard Kurz GmbH & Co.
InventorsGeorg Kaluza, Ralf Friedmann
Life of this patent
Estimating the term…
Abstract
In a guide roller for a stamping machine for deflecting a stamping foil web and/or a substrate web to be stamped upon, so that the guide roller has a negligibly low degree of friction, fixed to a roller spindle that is fixed with respect to the machine is at least one porous air-permeable spindle sleeve at which at least one roller sleeve is rotatably mounted. The roller spindle has a compressed gas passage for acting on the or each spindle sleeve with compressed gas to produce a gas cushion between the or each respective spindle sleeve and the associated roller sleeve.
Claims24
A guide roller for a stamping machine for guiding a web therein, comprising
- a roller spindle including at least first and second mutually axially spaced mounting portions and between the mounting portions a central portion of reduced diameter in relation thereto, and means for fixing the roller spindle in its operative position in the stamping machine,
- at least one porous air-permeable spindle sleeve having first and second axially mutually remote end portions with annular end faces and fixed by said end portions to the roller spindle,
- a roller sleeve mounted at the spindle sleeve,
- a compressed gas passage in the roller spindle and opening into said central portion for supplying compressed gas to act on the spindle sleeve at the roller spindle, thereby to produce a gas cushion between the spindle sleeve and the roller sleeve,
- on the roller spindle in adjoining relationship with a said mounting portion thereof a peripherally extending flange against which the, spindle sleeve bears with a said annular end face thereof, and
- fixed at an end of the roller spindle that is axially remote from said flange a disk axially immovably fixing the spindle sleeve between said disk and said flange.
A guide roller for a stamping machine for guiding a web therein, comprising
- a roller spindle including means for fixing the roller spindle in its operative position in the stamping machine,
- a plurality of porous air-permeable spindle sleeves having first and second axially mutually remote end portions with annular end faces and fixed by said end portions to the roller spindle,
- spacer rings on the roller spindle operable to hold the spindle sleeves at a spacing from each other on the roller spindle,
- a respective roller sleeve mounted at each spindle sleeve, and a compressed gas passage in the roller spindle and having a number of passage branchings corresponding to the number of spindle sleeves for supplying compressed gas to act on each spindle sleeve at the roller spindle, thereby to produce a gas cushion between the respective spindle sleeves and the associated roller sleeves.
A guide roller for a stamping machine for guiding a web therein, comprising
- a roller spindle including means for fixing the roller spindle in its operative position in the stamping machine and having first and second mutually axially spaced end portions,
- first and second porous air-permeable spindle sleeves having first and second axially mutually remote end portions and each fixed by a said end portion to the end portions of the roller spindle,
- a roller sleeve mounted at the spindle sleeves, and
- compressed gas passages in the roller spindle for supplying compressed gas to act on the spindle sleeves at the roller spindle, thereby to produce a gas cushion between the respective spindle sleeve and the roller sleeve.
Dependencies are inferred from the claim text.