EP 1097894 A1 20010509 - A unit for generating discrete lengths of paper material from a continuous strip
Title (en)
A unit for generating discrete lengths of paper material from a continuous strip
Title (de)
Einheit zur Erzeugung von Papiermaterial unterschiedlicher längen aus einer kontinuierlichen Bahn
Title (fr)
Dispositif pour produire des sections discrètes de matériau en papier a partir d'une bande continue
Publication
Application
Priority
IT BO990584 A 19991102
Abstract (en)
Tipping papers (3) used to join filter plugs and cigarette sticks (7) are obtained from a continuous strip (4) caused to advance by pinch rolls (17) along a feed path (P) in a given direction (D), and conveyed at a first tension (Tnl) through a cutting station (5) at which the individual papers (3) are separated by cuts made at a predetermined frequency and synchronously with the operation of a diverter element (24) located between the pinch rolls (17) and the cutting station (5). The diverter element serves to bring about a cyclical variation in the first tension of the strip (4) and is embodied as a cam (25) with a profile (27) having two distinct lobes (28, 29), made to oscillate between two limit positions (PA1, PA2) in which the lobes (28, 29) interact alternately with the strip, diverting it and causing it to assume the first tension (Tn1), and passing through an intermediate position (PAO) in which the strip is allowed to assume a second tension (Tn2) slacker than the first; the cam (25) completes each full cycle between the two limit positions (PA1, PA2) at a frequency equivalent to half the frequency with which the papers are cut. <IMAGE>
IPC 1-7
IPC 8 full level
A24C 5/47 (2006.01); B65H 23/04 (2006.01); B65H 35/08 (2006.01)
CPC (source: EP)
A24C 5/471 (2013.01); B65H 23/04 (2013.01); B65H 35/08 (2013.01); B65H 2404/63 (2013.01); B65H 2404/652 (2013.01)
Citation (search report)
- [A] US 5054346 A 19911008 - HEITMANN BOB [DE]
- [DA] US 4943341 A 19900724 - MATTEI RICCARDO [IT]
- [A] US 2957450 A 19601025 - PHILLIPS JR MALCOLM E
Designated contracting state (EPC)
DE ES FR GB IT
DOCDB simple family (publication)
EP 1097894 A1 20010509; EP 1097894 B1 20030514; CN 1173650 C 20041103; CN 1302569 A 20010711; DE 60002651 D1 20030618; DE 60002651 T2 20040219; ES 2198271 T3 20040201; IT 1311116 B1 20020228; IT BO990584 A0 19991102; IT BO990584 A1 20010502
DOCDB simple family (application)
EP 00830695 A 20001024; CN 00131946 A 20001101; DE 60002651 T 20001024; ES 00830695 T 20001024; IT BO990584 A 19991102