EP 4370745 A1 20240522 - PRESS DEVICE WITH A PRESS ROLLER
Title (en)
PRESS DEVICE WITH A PRESS ROLLER
Title (de)
PRESSVORRICHTUNG MIT EINER DRUCKROLLE
Title (fr)
DISPOSITIF DE PRESSE DOTÉ D'UN ROULEAU DE PRESSE
Publication
Application
Priority
- AT 505822021 A 20210715
- AT 2022060248 W 20220713
Abstract (en)
[origin: WO2023283666A1] The invention relates to a device (1) for producing a web from a fiber-containing material, in particular tissue paper, comprising at least one continuous belt (2) for supporting and transporting a fibrous web (3). Additionally, at least one press roller (5) is provided, having: a longitudinal central axis (6), a lateral surface (9), a radial direction (10) which is arranged in the direction of the longitudinal central axis (6) starting from the lateral surface (9), and a rotational direction (11), with respect to which the press roller (5) is rotatably mounted. A gap (12) is formed between the press roller (5) and the continuous belt (2) in order to press the fibrous web (3), and a press substrate (13) is provided which is guided about at least one sub-region (14) of the lateral surface (9) of the press roller (5) so as to contact same, wherein the press roller (5) comprises multiple recesses (15) on the lateral surface (9), said recesses (15) being guided to at least one cavity (16) and opening into the at least one cavity, and the cavity (16) is arranged within the press roller (5) with respect to the radial direction (10). A negative pressure-generating unit (17) is provided, by means of which a negative pressure can be produced in the at least one cavity (16).
IPC 8 full level
D21F 3/10 (2006.01)
CPC (source: AT EP)
D21F 1/50 (2013.01 - AT); D21F 3/10 (2013.01 - AT EP); D21F 5/004 (2013.01 - AT); D21F 11/00 (2013.01 - AT)
Citation (search report)
See references of WO 2023283666A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
WO 2023283666 A1 20230119; AT 525216 A1 20230115; CN 117677741 A 20240308; EP 4370745 A1 20240522
DOCDB simple family (application)
AT 2022060248 W 20220713; AT 505822021 A 20210715; CN 202280049844 A 20220713; EP 22748219 A 20220713