Method and machine for producing pipe cleaners

Details Method and machine for producing pipe cleaners Method and machine for producing pipe cleaners

1979-07-27

1981-03-17

Watkins, Donald

Textiles: spinning, twisting, and twining

Apparatus and processes

Chenille

57 6, 29780, 300 21, A46D 305, D02G 342

Patent

active

042559243

ABSTRACT:
The method and apparatus for producing pipe cleaners each of which comprises two wires which have been twisted into interlocking spirals with fiber elements clamped between the wires. Two primary wires pass through a spinning head and three continuous strands of fibers are wound into spirals covering the wires. Holding wires are passed against the spiral strands upon opposite sides as the entire assembly moves between a pair of pulleys. As the assembly emerges, the fibers are cut diametrically of the spirals to form two continuous rows of fiber elements. Each row is clamped to its adjacent primary wire by a holding wire thus to form a workpiece. Each workpiece passes through a transfer assembly in which the row of fiber elements is clamped to a pulley by one of the wires while the other wire passes along a free loop around pulley and thence back to the row of fiber elements in the wire holding them. The downstream end of the workpiece is twisted and held taut as it passes from the pulley so that the two wires are twisted into spirals as they pass from the pulley.

REFERENCES:
patent: 1829446 (1931-10-01), Hinelein
patent: 2576430 (1951-11-01), Weller
patent: 2931366 (1960-04-01), Siegel
patent: 3109277 (1963-11-01), Raymond et al.
patent: 3330603 (1967-07-01), Gelardi
patent: 3370622 (1968-02-01), Marks
patent: 3584449 (1971-06-01), Pollard
patent: 3657870 (1972-04-01), Marks
patent: 3942310 (1976-03-01), Rodermund et al.
patent: 4171850 (1979-10-01), Eriksson

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