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US 7,114,267 B2Granted
Device for treating web-type goods with a flowing or pressure medium
AssigneeFleissner GmbH
InventorGerold Fleissner
Life of this patent
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AssigneeFleissner GmbH
InventorGerold Fleissner
Estimating the term…
There are known drum jacket constructions that consist solely of perforated sheet metal. There are also known constructions, which, in order to increase the distance between the drum and the surrounding perforated sheet-metal wire gauze, consist of sheet metal with trusses configured e.g. as sheet-metal rings, or of honeycomb sheet-metal strips that are welded together, or of screwed constructions devoid of welding joints. The simplest solution for increasing said distance is a construction comprising a normal screen drum with struts bent into a U-shape that are screwed to the exterior, whereby the wire gauze lies on the external edges of said struts. Said drum however has a low buckling resistance, which is a required characteristic for the drying of tissue or paper. The novel drum jacket construction thus consists of an intersecting structure of sheet-metal strips, whose rings and strips are provided with corresponding insertion slots. The rings and strips are pushed into one another, so that they are at the same radial height and are screwed together. The free flanks of the insertion slots of the sheet-metal strips and also the sheet-metal ring are interconnected in a fixed manner by at least one respective additional connecting plate, using the screws.
A device for flowing or pressure treatment of textiles, nonwovens, tissue or paper comprising a treatment agent which is gaseous or liquid in the device, and is optionally also circulated, comprising a permeable drum having bottoms at the front and located under an induced draught, which serves as a transporting and supporting element for the material and which is covered for this purpose with a screen-shaped coating on its circumference, wherein sheet-metal strips extend straight without bending from one bottom to another between the bottoms of the drum to form the drum jacket, their width expansion extending substantially in the radial direction, and sheet-metal rings held on the sheet-metal strips are arranged between the sheet-metal strips, distributed uniformly over the length of the drum, wherein sheet-metal strips and sheet-metal rings can be pushed into one another and for this purpose both the sheet-metal strips and the sheet-metal rings are provided with radially directed insertion slots, characterised in that the free flanks of the insertion slots of the sheet-metal strips and of the sheet-metal ring are fixedly interconnected by means of at least one additional connecting plate in each case.
Dependencies are inferred from the claim text.