Pivoted apparatus having a slider crank mechanism for needling a

Details Pivoted apparatus having a slider crank mechanism for needling a Pivoted apparatus having a slider crank mechanism for needling a

1995-06-08

1996-04-02

Crowder, C. D.

Textiles: manufacturing

Textile product fabrication or treatment

Fiber entangling and interlocking

28107, D04H 1800

Patent

active

055028799

ABSTRACT:
The described apparatus for needling a nonwoven web comprises at least one needle beam carrying a needle board, a rocker for guiding the needle beam, and a slider-crank mechanism for actuating the needle beam. For a first-order mass balancing it is proposed that the slider-crank mechanism comprises two parallel crankshafts or eccentric shafts, which are adapted to be driven to rotate in mutually opposite senses, and associated connecting rods, which are connected by connecting rods to a link, which is pivoted to the rocker, and the arrangement is such that when the slider-crank mechanism is in a mid-position at the middle of its strike the plane of symmetry between the two crankshafts or eccentric shafts is at least approximately at right angles to a plane which contains the instantaneous overall center of gravity of the oscillating masses and the pivotal axis of the rocker.

REFERENCES:
patent: 3116534 (1964-01-01), O'Byrne

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