| 摘要 |
A process for fabricating belts from web stock (6) comprising conveying a first mandrel to a wrapping station (2), supplying the leading end of a web from a web supply roll to the first mandrel at the wrapping station, retaining the leading end of the web on the first mandrel by means of suction, wrapping the web around the first mandrel by rotating the first mandrel for about one revolution, severing the web to form a trailing end which overlaps the leading end of the web to form a complete turn, concurrently conveying the first mandrel to an ultrasonic web-welding station (3), and a second mandrel to the wrapping station, and concurrently wrapping the second mandrel with fresh web material while welding the overlapping portions to form a seamed belt. These welded belts may be automatically removed from the mandrels at a belt discharge station (4). <IMAGE> |
