Method for transporting a tail end in a fiber web machine from one structural section to another, and also an apparatus and the use of it
AssigneeRuntech Systems Oy
InventorsKimma Loippo, Juhani Lehto, Markku Kajander, Mertsi Lindeman
Life of this patent
Estimating the term…
Abstract
An apparatus for transporting a tail end in a fiber web machine from one structural section to another includes nozzles for guiding the tail end on the guide plate by means of an air flow such that the blown air is brought onto a guide plate shaped into a curve in such a way that the air flow of the blown air guides the tail end onto the curved guide plate by means of a bump functioning as an aerodynamic profile formed in the curved guide plate.
Claims20
An apparatus for transporting a tail end in a fiber web machine from one structural section to another, the apparatus comprising:
- one or more nozzles formed in a nozzle frame and configured to direct blown air, the directed blown air defining an air flow for transporting the tail end in a controlled fashion in a direction parallel to the air flow;
- and
- a guide plate directly coupled to the nozzle frame and having a streamlined surface configured to guide the air flow along the streamlined surface, the one or more nozzles configured to direct the blown air onto the streamlined surface at an angle α, the angle α either ranging between being less than 0° and greater than or equal to −50° or ranging between being greater than 0° and less than or equal to 20°, the streamlined surface including a bump and a surface portion located downstream from the bump with respect to the air flow.
A guidance system for transporting a tail end in a fiber web machine from one structural section to another, the guidance system comprising:
- a plurality of nozzle frames, each nozzle frame having a respective one or more nozzles formed in the respective nozzle frame and configured to direct blown air, the directed blown air defining an air flow for transporting the tail end in a controlled fashion in a direction parallel to the air flow;
- and
- a plurality of guide plates, each guide plate directly coupled to a respective nozzle frame, at least one guide plate among the plurality of guide plates being coupled to a respective nozzle frame and another nozzle frame located downstream from the respective nozzle frame with respect to the air flow, each guide plate having a respective streamlined surface configured to guide the air flow along the streamlined surface, each streamline surface including a bump and a surface portion located downstream from the bump with respect to the air flow.
A method for transporting a tail end in a fiber web machine from one structural section to another, the method comprising:
- directing blown air from a nozzle formed in a nozzle frame onto a guide plate directly coupled to the nozzle frame, the directed blown air defining an air flow for transporting the tail end in a controlled fashion in a direction parallel to the air flow, the guide plate having a streamlined surface configured to guide the air flow along the streamlined surface, the streamlined surface including a bump and surface portion located downstream from the bump with respect to the air flow,
- wherein the directed blown air and the streamlined surface define an angle α, the angle α either ranging between being less than 0° and greater than or equal to −50° or ranging between being greater than 0° and less than or equal to 20°.
Dependencies are inferred from the claim text.