Method and apparatus for the production of staple slivers from tows of filament fibers
AssigneeSchubert & Salzer Maschinenfabrik Aktiengesellschaft
InventorWolfgang Lubitzsch
Life of this patent
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Abstract
A method and apparatus for producing staple fibers of a predetermined length from a substantially endless tow of fibers. The tow of fibers is fed onto needles carried in rows on a carrier under tension. The carrier is rotated past a cutting area and a depositing area. As the rows of needles pass the cutting area the tow of fibers is raised away from the surface of the carrier to enable cutting of the fibers by a cutter blade. The cut fibers are held by the needles until such reach the depositing area wherein the particular row of needles is retracted to deposit the cut fibers on a receiving means.
Claims18
An apparatus for producing predetermined lengths of fibers from an endless tow of fibers comprising:
- a. a carrier;
- b. means for moving said carrier in a first direction;
- c. transverse rows of needles carried on said carrier;
- d. said transverse rows of needles being positioned on said carrier at an angle relative to said first direction of movement of said carrier;
- e. means for continuously depositing said endless tow of fibers on said transverse rows of needles in a path parallel to said first direction of movement of said carrier;
- f. a rotating cutting blade, and
- g. means for repeatedly moving said rotating cutting blade substantially transverse to said tow of fibers as said fibers are moved by said carrier on said rows of needles for cutting said fibers into predetermind lengths.
A method of producing fibers of a predetermined length from at least one tow of substantially endless fibers comprising:
- a. depositing said tow of fibers on rows of needles carried on a carrier;
- b. moving said carrier with said fibers carried thereon to a cutting area;
- c. cutting said tow of fibers into predetermined lengths along said rows of needles at an angle to the direction of movement of carrier and rows of needles, and
- d. moving said carrier to a receiving area for removing said cut lengths of fibers from said carrier and depositing same onto a surface of a moving receiver.
- e. moving said surface of said receiver closely adjacent said carrier at said receiving area as said cut lengths of fibers are deposited thereon for maintaining said cut lengths of said fibers in parallel alignment during transfer from said carrier onto said receiver.
Dependencies are inferred from the claim text.