Method for producing or machining a roller, roller and functional layer of a roller

Patent metadata

Field	Value
Publication number	US-10655276-B2
Application number	US-201515500176-A
Country	US
Kind code	B2
Filing date	Jul 17, 2015
Priority date	Jul 28, 2014
Publication date	May 19, 2020
Grant date	May 19, 2020

Abstract

A method produces or machines a roller which is suitable to be used in a machine for producing or processing a fibrous web. The roller contains a roller core and at least one functional layer. The method is characterized in that the method includes the application of a functional layer. The application of the functional layer is performed by applying a coating substrate to the surface of a roller core. The application takes place simultaneously over at least half the roller width, preferably over 75% of the roller width, particularly preferably over the entire roller width. The entire applied coating substrate or parts thereof are hardened, forming a solidified structure.

First claim

The invention claimed is:

1. A method for producing or processing a roller suitable to be used in a machine for producing or processing a fibrous web, the roller having a roller core, which comprises the steps of:
applying at least one functional layer to the roller core, by the further steps of:
applying a coating substrate to a surface of the roller core by applying a non-hardened coating substrate to the surface of the roller core, at least partially covering the non-hardened coating substrate with regions of a hardened coating substrate, and removing the non-hardened coating substrate located under the regions of the hardened coating substrate.

2. The method according to claim 1 , which further comprises forming the coating substrate as one of a powder or a liquid.

3. The method according to claim 1 , which further comprises forming the coating substrate to contain at least one of a plastic or a metal.

4. The method according to claim 1 , which further comprises carrying out the application of the coating substrate by dipping the roller core in a storage volume which is filled with the coating substrate.

5. The method according to claim 4 , wherein the coating substrate adheres to the roller core by electrostatic attraction.

6. The method according to claim 4 , which further comprises rotatably mounting the roller core for carrying out the application of the coating substrate by dipping the roller core in the storage volume.

7. The method according to claim 1 , which further comprises applying the coating substrate in layers over one another, wherein the application of a following layer of the coating substrate is carried out on a wholly or partly solidified structure of a previous layer.

8. The method according to claim 1 , which further comprises adjusting a thickness of an applied layer of the coating substrate by means of a doctor blade which, seen in a direction of rotation of the roller, is disposed after the application of the coating substrate to the roller but before a device for hardening the coating substrate.

9. The method according to claim 1 , wherein after removing the non-hardened coating substrate, the regions of hardened coating substrate form solidified structures in a form of three-dimensional functional structures.

10. The method according to claim 1 , which further comprises carrying out the hardening of the coating substrate wholly or partly by irradiation with light.

11. The method according to claim 1 , which further comprises controlling the hardening via a computer system.

12. The method according to claim 1 , which further comprises forming the functional layer to have a thickness of more than 6 mm.

13. The method according to claim 1 , which further comprises applying the coating substrate over an entire roller width of the roller core.

14. The method according to claim 1 , which further comprises forming the functional layer to have a thickness between 10 mm and 20 mm.

15. A method for producing or processing a roller being suitable to be used in a machine for producing or processing a fibrous web, the roller having a roller core, which comprises the steps of:
applying at least one functional layer to the roller core, by the further steps of:
a) applying a layer of a coating substrate to a surface of the roller core using a first application method;
b) hardening the coating substrate entirely or parts of the coating substrate applied, forming a solidified predefined structure;
c) repeating steps a) and b), so that multiple layers are applied over one another, wherein an application of a following layer of the coating substrate is carried out to a wholly or partly solidified predefined structure of a previous layer, until the at least one functional layer is completed, and wherein the first application method is used to perform a plurality of repetitions of step a), wherein at least regions of the coating substrate are non-hardened after repeating steps a) and b); and
d) removing the regions of the coating substrate that are non-hardened.

Assignees

• Voith Patent Gmbh

Inventors

• Brooks Wesley
• Eberhardt Robert
• Graser Siegfried
• Grohmann Franz
• Liu Ting
• Moser Ralf
• Probst-Schendzielorz Stefan
• Schmitt Matthias
• Wokurek Michael

Classifications

• D21G1/02 Primary

  Rolls; Their bearings (in general F16C13/00) · CPC title

• D21F3/08 Primary

  Pressure rolls · CPC title

• Y10T29/49544

  Roller making · CPC title

• B05D1/18

  performed by dipping · CPC title

• B22F3/1055

  Operations & Transport · mapped topic