Title:
繊維材料ウェブを生産する機械内のサクションロール
Document Type and Number:
Japanese Patent JP2007536183
Kind Code:
A
Abstract:
The present invention provides a suction roll system in a drying section of a machine for manufacturing a fibrous web, the suction roll system including a suction roll having an outer circumferential surface. The circumferential surface defines holes configured for attracting the fibrous web by suction and includes regions, more than two of the regions including the holes, at least two of the regions relative to one another having different numbers of the holes per unit area or having the holes with different diameters per unit area. The circumferential surface has strips which extend in a circumferential direction, at least one strip which extends in a helical shape over the circumferential surface, or strips which extend either substantially in a direction of a longitudinal axis of the suction roll or diagonally relative to the longitudinal axis. The regions include the strips. The strips have an increased number of the holes per unit area in comparison with the remaining regions between the strips or have the holes with greater diameters in comparison with the remaining regions.
Inventors:
Curl, peter
Shree Cow, Toven
Meyer, Lorrant
Shree Cow, Toven
Meyer, Lorrant
Application Number:
JP2007512144A
Publication Date:
December 13, 2007
Filing Date:
March 22, 2005
Export Citation:
Assignee:
Voith Patent GmbH
International Classes:
B65H27/00; D21F3/10; D21F5/14; D21F5/18
Attorney, Agent or Firm:
Takahisa Kimura