EP 3328565 A1 20180606 - ROLLER GRINDER FOR TARGETED PREVENTION OF QUARTER WAVES
Title (en)
ROLLER GRINDER FOR TARGETED PREVENTION OF QUARTER WAVES
Title (de)
WALZENSCHLIFF ZUR GEZIELTEN VERMEIDUNG VON VIERTELWELLEN
Title (fr)
MEULE DE CYLINDRE DESTINEE A L'EVITEMENT CIBLE DE QUARTS D'ONDE
Publication
Application
Priority
- EP 15178612 A 20150728
- EP 2016060724 W 20160512
Abstract (en)
[origin: WO2017016695A1] The invention relates to a roller stand (1) that has a roller stand frame (3) in which working rollers (4, 5), or working rollers (4, 5) and support rollers (8, 9), or working rollers (4, 5), intermediate rollers (10, 11), and support rollers (8, 9) are mounted. The rollers (4, 5, 8, 9, 10, 11) can be rotated about a respective rotational axis (6, 7). In a roller stand (1) without intermediate rollers (10, 11), the working rollers (4, 5) can be moved relative to one another in the direction of the respective rotational axis (6, 7), i.e. axially. In a roller stand (1) with intermediate rollers (10, 11), the same applies to the working rollers (4, 5) or the intermediate rollers (10, 11). Each of the axially movable rollers (4, 5 or 10, 11) has an effective barrel length (L) and a curved contour (R1, R2) which extends over the entire effective barrel length (L). Each of the axially movable rollers (4, 5 or 10, 11) has a contour (R1, R2) made by superimposing a respective base function (B1, B2) with a respective additional function (Z1, Z2). The base functions (B1, B2) and the additional functions (Z1, Z2) are functions of the location (x) in the direction of the respective rotational axis (6, 7). The base functions (B1, B2) are determined so as to complement each other in a specified relative axial position in an unloaded state of the axially movable rollers (4, 5 or 10, 11) and form a convex or concave roller gap profile depending on a movement direction upon being moved from the axial position. The sum of the additional functions (Z1, Z2) is a symmetrical function, which is monotonous on both sides, with respect to the barrel center of the axially movable rollers (4, 5 or 10, 11) in the unmoved state.
IPC 8 full level
B21B 31/18 (2006.01); B21B 13/14 (2006.01)
CPC (source: EP US)
B21B 13/142 (2013.01 - EP US); B21B 31/18 (2013.01 - EP US); B21B 2267/18 (2013.01 - EP US); B21B 2267/20 (2013.01 - EP); B21B 2269/12 (2013.01 - EP US)
Citation (search report)
See references of WO 2017016695A1
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
DOCDB simple family (publication)
EP 3124130 A1 20170201; CN 107921496 A 20180417; CN 107921496 B 20191101; EP 3328565 A1 20180606; EP 3328565 B1 20191211; JP 2018525228 A 20180906; JP 6585278 B2 20191002; US 10589328 B2 20200317; US 2018200769 A1 20180719; WO 2017016695 A1 20170202
DOCDB simple family (application)
EP 15178612 A 20150728; CN 201680043955 A 20160512; EP 16721836 A 20160512; EP 2016060724 W 20160512; JP 2018504231 A 20160512; US 201615744158 A 20160512