EP 0865882 A2 19980923 - Ultrasonic skiver for unvulcanized rubber material
Title (en)
Ultrasonic skiver for unvulcanized rubber material
Title (de)
Ultraschallvorrichtung zum gehrungsgerechten Schneiden von unvulkanisiertem Kautschuk
Title (fr)
Dispositif à ultrasons pour la coupe en biseau de caoutchouc non vulcanisé
Publication
Application
Priority
US 82164697 A 19970320
Abstract (en)
A skiver device is comprised of an ultrasonically excited knife (50) and its holder, an upper floating roller assembly (30) with a material lead-in device which guides the material to the knife blade, a roller anvil assembly (20) with material lead-in and support rollers providing support of the underside of the material during cutting, an upper material separation device (60) and a lower material separation device (65), which cooperate to keep apart the edge of the material from a supply roll and the edge of the severed strip as the cut progresses. These elements are supported from a traversing carriage (12) which moves along a rail (14) supported transversely with respect to a path along which a web (W) of uncured rubber material is guided as the material is fed from the supply roll. The rail (14) extends at a predetermined angle to the web path so as to make a diagonal cut across the web material, and the knife (50) is supported to cut the web material at an acute angle to the surfaces of such material, e.g. a skive type of cut. The skiver device incorporates the roller anvil assembly (20) and a floating roller assembly (30), with freely independently rotatable arrays of rollers (22, 32) supported in close association with the skiver knife, to control closely the positioning of the uncured rubber material from which the skiver knife will sever strips of predetermined width, and to provide separation devices which keep the edges of material apart as the severing action proceeds. <IMAGE> <IMAGE>
IPC 1-7
IPC 8 full level
B26D 3/00 (2006.01); B26D 1/04 (2006.01); B26D 3/02 (2006.01); B26D 7/08 (2006.01); B26D 7/14 (2006.01)
CPC (source: EP)
B26D 1/045 (2013.01); B26D 3/02 (2013.01); B26D 7/086 (2013.01); B26D 7/14 (2013.01)
Designated contracting state (EPC)
BE DE FR GB IT NL
DOCDB simple family (publication)
EP 0865882 A2 19980923; EP 0865882 A3 19990506; CA 2232797 A1 19980920; JP H10309693 A 19981124
DOCDB simple family (application)
EP 98302030 A 19980318; CA 2232797 A 19980320; JP 7059198 A 19980319