Sheet forming system and method for controlling the same
AssigneeVoith Sulzer Papiertechnik Patent GmbH
InventorsWolfgang Ruf, Peter Mirsberger, Holger Humberg
Life of this patent
Estimating the term…
Abstract
A sheet forming system of a paper or cardboard machine. A headbox includes a headbox nozzle with to laterally extending side panels and first and second nozzle walls extending along a width of the machine. First and second screens converge in a region adjacent the headbox nozzle. At least two guide mechanisms, each having a guide surface, guide the first and second screens in the region. At least one support mechanism supports at least a portion of one of the first and second nozzle walls against said guide surface of at least one of said at least two guide mechanisms.
Claims23
A sheet forming system of a paper or cardboard machine, comprising:
- a headbox with a headbox nozzle, said headbox nozzle including two laterally extending side panels and first and second nozzle walls extending along a width of said machine;
- first and second screens converging in a region adjacent said headbox nozzle;
- at least two guide mechanisms, each having a guide surface, that guide said first and second screens in said region;
- and
- at least one support mechanism which supports at least a portion of one of said first and second nozzle walls against said guide surface of at least one of said at least two guide mechanisms.
A sheet forming system of a paper or cardboard machine, comprising:
- a headbox with a headbox nozzle, said headbox nozzle including two laterally extending side panels and first and second nozzle walls extending along a width of said machine;
- first and second screens converging in a region adjacent said headbox nozzle;
- at least two guide mechanisms, each having a guide surface, that guide said first and second screens in said region;
- and
- at least one support mechanism which supports at least a portion of one of said first and second nozzle walls against said guide surface of at least one of said at least two guide mechanisms,
- wherein at least one of said at least one support mechanism is a roll.
A sheet forming system of a paper or cardboard machine, comprising:
- a headbox with a headbox nozzle, said headbox nozzle including two laterally extending side panels and first and second nozzle walls extending along a width of said machine;
- first and second screens converging in a region adjacent said headbox nozzle;
- at least two guide mechanisms, each having a guide surface, that guide said first and second screens in said region;
- and
- at least one support mechanism which supports at least a portion of one of said first and second nozzle walls against said guide surface of at least one of said at least two guide mechanisms,
- wherein at least one of said at least one support mechanism has at least one of a hydrostatic bearing and hydrostatic support.
A sheet forming system of a paper or cardboard machine, comprising:
- a headbox with a headbox nozzle, said headbox nozzle including first and second nozzle walls extending along a width of said machine;
- first and second screens converging in a region adjacent said headbox nozzle;
- first and second guide rolls having first and second guide surfaces, respectively, that guide said first and second screens in said region;
- and
- a support mechanism which supports at least a part of said second nozzle wall against said second guide surface, said support mechanism being one of a roll and a shoe.
A sheet forming system of a paper or cardboard machine, comprising:
- a headbox with a headbox nozzle, said headbox nozzle including first and second nozzle walls extending along a width of said machine;
- first and second screens converging in a region adjacent said headbox nozzle;
- first and second guide rolls having first and second guide surfaces, respectively, that guide said first and second screens in said region;
- a support mechanism which supports at least a part of said second nozzle wall against said second guide surface, said support mechanism being one of a roll and a shoe;
- at least one supporting table disposed in said second nozzle wall;
- and
- at least one pressure chamber defined between said supporting table and said second nozzle wall.
A method for controlling a sheet forming system of a paper or cardboard machine, said machine including a headbox with a headbox nozzle, said headbox nozzle including two laterally extending side panels and first and second nozzle walls extending along a width of said machine, first and second screens converging in a region adjacent said headbox nozzle, at least two guide mechanisms, each having a guide surface, and at least one support mechanism, said method comprising:
- guiding said first and second screens in said region via said at least two guide mechanisms;
- supporting at least a portion of one of said first and second nozzle walls against said guide surface of at least one of said at least two guide mechanisms with said at least one support mechanism.
Dependencies are inferred from the claim text.