Winding – tensioning – or guiding – Strand guide – Oscillatable or reciprocable
Patent
1981-02-03
1983-01-25
Gilreath, Stanley N.
Winding, tensioning, or guiding
Strand guide
Oscillatable or reciprocable
156169, 242 1, 242 721, 242 18R, 242158R, 242 47, B65H 5428, B65H 5728
Patent
active
043699340
ABSTRACT:
A method and apparatus for use in helical filament winding operations, wherein the filament to be wound is axially displaced a predetermined amount as it is drawn about a traction roller by a driven form or mandrel on which the filament is to be wound, whereby the degree of axial displacement of the filament on the traction roller determines the angle of helical wind on the winding surface. A filament guide is provided comprising a traction roller about which, in operation, the filament to be wound is drawn to rotate the roller. A means is provided which contacts the filament in order to axially displace the filament on the traction roller a predetermined amount with respect to filament input and filament output paths thereby defining the helix angle of wrap on the form. This filament contact means is movable, under force as applied thereon by the filament leaving the roller, between predetermined limits in a direction parallel to the axis of the roller. The guide further comprises means to reverse the axial displacement of the filament when the filament axial displacement means reaches the predetermined limit in each direction, thereby defining the limits of movement of the filament axial displacement means and, as well, the limits of the filament winding on the form. The method and apparatus according to the present invention provides a simple, inexpensive and effective means to provide uniform helical wound filament for a wide variety of applications, such as storage of textile filaments in rolls, production of continuous reinforcement composite pipe and the like.
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