B - Operations – Transporting – 65 – H
Patent
B - Operations, Transporting
65
H
B65H 21/00 (2006.01) B29C 65/02 (2006.01) B29C 65/18 (2006.01) B65H 19/18 (2006.01)
Patent
CA 2173431
A method and apparatus for continuously supplying thermoplastic webbing to an application apparatus is disclosed. In one aspect of the invention, first (22) and second (14) webs of thermoplastic material are held stationary and heat spliced together upstream in a line operation while a downstream segment of the thermoplastic webbing is continuously supplied to an application apparatus downstream in the operation. The heat splicing step is carried out by bringing together first and second opposable splicer clamps (58, 60) to form an overlapping area between the first and second webs and applying a heat impulse to the overlapping area to bond the webs together.
Procédé et appareil utilisés pour alimenter en continu, en sangle thermoplastique, un appareil d'application. Selon un aspect de cette invention des première (22) et deuxième (14) bandes de matière thermoplastique sont retenues immobiles et collées thermiquement ensemble en amont d'un processus en ligne alors qu'un segment de la sangle thermoplastique situé en aval est fourni en continu à un appareil d'application situé en aval dans le processus. On effectue l'étape de collage thermique en regroupant des première et deuxième pinces de collage (58, 60) opposées pour former une zone de chevauchement entre les première et deuxième bandes, et en appliquant une impulsion thermique sur ladite zone de chevauchement pour coller ensemble les deux bandes.
Burkart Louis Paul
Emenaker Ralph Robert
Perez Richard
Sim & Mcburney
The Procter & Gamble Company
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