EP 1061174 A2 20001220 - Headbox
Title (en)
Headbox
Title (de)
Stoffauflauf
Title (fr)
Caisse de tête
Publication
Application
Priority
DE 19926804 A 19990612
Abstract (en)
The stock inlet, for a papermaking or cardboard prodn. machine, has a number of channels arranged in rows and columns across the machine width, with at least one flexible blade (7a) between rows. Blade supports (6a,6b) for the blades (7a) are after the blade clamping points (10a), in the suspension flow direction. The blade supports (6a,6b) are at the webs between two neighboring horizontal rows of channels, with at least three supports (6a,6b) across the width of the stock inlet. The blade supports (6a,6b) have a curvature at their zones (8) facing the blades (7a), with an identical curvature at the zones (9) away from the blades. The blades (7a) are totally supported (6a,6b) at the initial zone from the clamping points (10a), in the flow direction. All the blade supports (6a,6b) have the same curvature, or the supports for one row of channels have a greater curvature than those for the lower row of channels. The blade supports (6a,6b) are in one piece with the webs, or they are mounted to the webs. Blade supports (6a,6b) are fitted to the webs where there are blank spaces, to maintain the suspension flow conditions. The blades (7a) are at a vertical gap of 2 mm from their supports (6a,6b) at the clamping points.
Abstract (de)
Die Erfindung betrifft einen Stoffauflauf (1) für eine Papier- oder Kartonmaschine mit einer Vielzahl von zeilen- und spaltenförmig angeordneten Kanälen (2a,2b,2c,2d). Zwischen den Zeilen ist mindestens eine Lamelle (7a,7b,7c) angeordnet. Im Ruhezustand des Stoffauflaufes wird diese Lamelle von Lamellenstützen (6a,6b,6c,6d), die an den Stegen der Kanäle angebracht sind, zumindest teilweise gestützt. <IMAGE>
IPC 1-7
IPC 8 full level
D21F 1/02 (2006.01)
CPC (source: EP US)
D21F 1/02 (2013.01 - EP US); D21F 1/026 (2013.01 - EP US); D21F 1/028 (2013.01 - EP US); Y10T 29/302 (2015.01 - EP US); Y10T 29/49032 (2015.01 - EP US); Y10T 29/49826 (2015.01 - EP US)
Designated contracting state (EPC)
DE FI SE
DOCDB simple family (publication)
DE 19926804 A1 20001214; EP 1061174 A2 20001220; EP 1061174 A3 20010321; US 2003005565 A1 20030109; US 6471828 B1 20021029; US 6602388 B2 20030805
DOCDB simple family (application)
DE 19926804 A 19990612; EP 00107661 A 20000410; US 23861402 A 20020911; US 58989300 A 20000609