摘要:
A draft device (1) of a drafting machine or lap-forming machine on a spinning line comprises an opening unit (10) positioned upline of the draft unit (2). The opening unit (2) comprises opening cylinders with annular bosses or pairs of overlapping cylinders with a cylindrical helix, suitable to sink into each sliver entering the unit to open it, improving the conditions for subsequent drafting.
摘要:
A device (1) of a fibre manufacturing machine, such as a lap-winder, forming a lap (L), comprises a pair of calenders (22,24) to support the lap being formed, and a belt (30) which forms a circuit next to the formation area (20), in contact with the lap in formation, to limit the formation of thickening.
摘要:
A device (1) of a fibre processing machine, such as a lap-winder, for the formation of a lap, comprises a primary calender (22), provided with an auxiliary belt (40), and a secondary calender (24), greater in diameter than the primary calender.
摘要:
The belt (30) of a lap-forming device (1) is multilayer and has a processing layer (30a) destined to come into contact with the lap, made from polyurethane, an intermediate reinforcement layer (30b) made from polyester fabric and a dragging layer (30c) destined to come into contact with the primary calender (22), made from polyester.
摘要:
A combing machine is provided with a transmission device (30) for moving the circular comb at a variable speed. The transmission device 30 comprises a flat intermittent drive, which ensures highly reliable regular functioning.