POWER LOOM WITH A DEVICE FOR CUTTING OFF A WOOF THREAD

• US 20040244860A1
• Filed: 06/09/2004
• Published: 12/09/2004
• Est. Priority Date: 09/02/1999
• Status: Active Grant

• Current Assignee: Jozef Peeters, Patrick Puissant
• Original Assignee: Jozef Peeters, Patrick Puissant
• Inventors: Peeters, Jozef, Puissant, Patrick
• Granted Patent: US 6,840,287 B2
• Time in Patent Office: Days
• US Class Current: 139/11
• CPC Class Codes: B23K 26/0738 into a linear shape
• CPC Class Codes: D03D 49/70 Devices for cutting weft threads cutting weft in looms with automatic weft replenishment D03D45/50

Abstract

A weaving machine, in particular an airjet loom, which is fitted with a system (16) for cutting a filling thread (12′), which is being held ready for filling insertion, from a filling (12) already beaten into a fabric (10), wherein said system (16) includes a laser.

Claims

1. A weaving machine comprising:

a main weft thread blowing nozzle;

a reed for beating up weft threads inserted into a shed of the weaving machine;

a laser arranged to emit a laser cutting beam directed to an area where a beat up weft thread is located adjacent an outlet of the blowing nozzle between the main blowing nozzle and the reed.

2. A weaving machine as claimed in claim 1, wherein said laser cutting beam is configured as a flat beam.

3. The weaving machine as claimed in claim 2, wherein said flat beam is oriented so that it extends transversely of the longitudinal axis of a beat up weft thread.

4. The weaving machine as claimed in claim 1, wherein said weft threads comprise synthetic filaments, whereby cut ends of the synthetic filaments are melted by the laser cutting beam during cutting of the threads.

5. A weaving machine comprising a system adapted to cut a filling thread which is kept ready for filling insertion from a filling thread already beaten into a fabric, said cutting system comprising a laser and wherein said filler thread comprises synthetic filaments that are caused to melt at the ends thereof and to at least partially fuse together during cutting of the filling thread by the laser.