Global Patent Index - EP 3802027 B1

EP 3802027 B1 20240710 - WEB SLITTER

Title (en)

WEB SLITTER

Title (de)

LÄNGSSCHNEIDEEINRICHTUNG ZUM SCHNEIDEN EINER LAUFENDEN MATERIALBAHN

Title (fr)

DÉCOUPEUSE LONGITUDINALE POUR MATERIAUX EN FORME DE BANDE.

Publication

EP 3802027 B1 20240710 (DE)

Application

EP 19728606 A 20190528

Priority

  • DE 102018113558 A 20180607
  • EP 2019063711 W 20190528

Abstract (en)

[origin: WO2019233808A1] The invention relates to a longitudinal cutting device for cutting a traveling material web (1), particularly a paper or cardboard web, having a plurality of rotatable circular knives (3, 4), which cut in the direction (2) of web travel, each being adjustably mounted via a slide (5) on a knife traverse extending crosswise to the web travel direction (2). According to the invention, the discharge of cutting dust is improved in that a suction collection pipe (6), connected to a vacuum source, extends crosswise to the web travel direction (2) over a plurality of circular knives (3, 4), said suction collection pipe having a suction slot (7) extending crosswise to the web travel direction (2) over said circular knives (3, 4), a suction pipe (8) receiving the cutting dust being associated with each of said circular knives (3, 4), said suction pipes (8) each being connected to the suction collection pipe (6) via a coupling element (10) mounted in the suction slot (7) and the suction slot (7) being sealed between the coupling elements (10) via a sealing band (9).

IPC 8 full level

B26D 7/18 (2006.01)

CPC (source: EP)

B26D 7/1863 (2013.01)

Citation (examination)

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

DOCDB simple family (publication)

DE 102018113558 A1 20191212; EP 3802027 A1 20210414; EP 3802027 B1 20240710; WO 2019233808 A1 20191212

DOCDB simple family (application)

DE 102018113558 A 20180607; EP 19728606 A 20190528; EP 2019063711 W 20190528