Abstract

A device for treatment of a card web (V), comprising a first conveyor belt (2) and a second conveyor belt (3) in overlapped relationship along one section to define a conveyor channel (4) for the web (V); a plurality of first rotating and axially fixed rollers (7) with the conveyor belts (2, 3) wound thereon; a first axially movable accumulator carriage (8) which collide with a portion of the conveyor channel (4) to move it in a first direction (X), and thus change the length of the conveyor channel (4); first compensation means (11) which compensate for length changes in the conveyor channel (4) defining section of the first conveyor belt (2) and second compensation means (12) which compensate for length changes in the conveyor channel (4) defining section of the second conveyor belt (3). The second compensation means (12) include a second accumulator carriage (13), axially movable in a second direction (Y) other than the first direction (X).

IPC Classes  ?

• D01G 15/36 - Driving or speed control arrangements
• D01G 15/64 - Drafting or twisting apparatus associated with doffing arrangements or with web-dividing apparatus
• D01G 25/00 - Lap-forming devices not integral with machines specified above
• D01H 5/86 - ApronsApron supportsApron-tensioning arrangements
• D04H 1/70 - Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres
• D04H 1/74 - Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being orientated, e.g. in parallel