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US 6,219,885 B1Granted
High performance card
AssigneeMaschinenfabrik Rieter AG
InventorsJürg Faas, Beat Näf, Olivier Wüst, Christian Sauter, Theodor Gresser Götz
Life of this patent
Estimating the term…
Abstract
The main drum diameter (D) of a card for short staple carding is reduced. The working width preferentially is enlarged. The main drum (50) can be made from fiber reinforced synthetic material. Notwithstanding its smaller diameter, the new main drum is operated at the same or a somewhat higher circumferential speed (in comparison to a conventional card).
Claims21
A carding machine, comprising:
- at least one main carding drum having a substantially cylindrical surface with clothing provided thereon defining a working width of said main carding drum of greater than about 1300 mm;
- said main carding drum having a diameter between about 700 mm to 900 mm;
- a set of flats disposed relative to said main carding drum for uniform carding of fibers on said main carding drum over said working width;
- and
- a feeding system disposed to uniformly feed said main carding drum with fibers to be processed over said working width, said feeding system comprising a single transfer location for transferring fibers to said main carding drum.
2 more elements
A carding machine, comprising:
- at least one main carding drum having a substantially cylindrical surface with clothing provided thereon defining a working width of said main carding drum of greater than about 1300 mm;
- said main carding drum having a diameter between about 700 mm to 900 mm;
- a set of flats disposed relative to said main carding drum for uniform carding of fibers on said main carding drum over said working width;
- a feeding system disposed to uniformly feed said main carding drum with fibers to be processed over said working width, said feeding system comprising a single transfer location for transferring fibers to said main carding drum;
- wherein said main drum is formed from a fiber reinforced synthetic material compound;
- wherein said compound comprises a glass fiber and resin compound;
- and
- wherein said main drum has a wall of predetermined thickness and said glass fiber is wound helically into said wall.
5 more elements
A carding machine, comprising:
- at least one main carding drum having a substantially cylindrical surface with clothing provided thereon defining a working width of said main carding drum of greater than about 1300 mm;
- said main carding drum having a diameter between about 700 mm to 900 mm;
- a set of flats disposed relative to said main carding drum for uniform carding of fibers on said main carding drum over said working width;
- a feeding system disposed to uniformly feed said main carding drum with fibers to be processed over said working width, said feeding system comprising a single transfer location for transferring fibers to said main carding drum;
- wherein said main drum is formed from a fiber reinforced synthetic material compound;
- and
- wherein said main drum further comprises a clothing wound on an outer circumferential surface thereof with a winding tension so as to generate compressive stress in said fiber reinforced synthetic material compound.
4 more elements
A carding machine, comprising:
- at least one main carding drum having a substantially cylindrical surface with clothing provided thereon defining a working width of said main carding drum of greater than about 1300 mm;
- said main carding drum having a diameter between about 700 mm to 900 mm;
- a set of flats disposed relative to said main carding drum for uniform carding of fibers on said main carding drum over said working width;
- a feeding system disposed to uniformly feed said main carding drum with fibers to be processed over said working width, said feeding system comprising a single transfer location for transferring fibers to said main carding drum;
- wherein said main drum is formed from a fiber reinforced synthetic material compound;
- and
- wherein said main drum further comprises a clothing wound on an outer circumferential surface thereof, said clothing being grounded so that electrostatic charges that may build do not adversely effect the carding process.
4 more elements
Dependencies are inferred from the claim text.