Advancing material of indeterminate length – By orbitally traveling material-engaging surface – Comprising rotary pinch pair
Patent
1986-04-10
1990-06-19
Levy, Stuart S.
Advancing material of indeterminate length
By orbitally traveling material-engaging surface
Comprising rotary pinch pair
226187, 226194, B65H 5104, B65H 5132
Patent
active
049345761
ABSTRACT:
A planetary wire-feeding mechanism has a left and right driving roll with hyperboloid profiles in a housing made up of two equal left and right cylinders, with an axis of rotation coinciding with the geometric axis of the electrode wire. The two cylinders contact one another and are joined detachably. In each of them there is shaped semi-cylindrical seats having parts with a common axis perpendicular to the geometric axis of the electrode wire and disposed in the plane of contacts between the two cylindrical parts. In the semi-cylindrical seats there are mounted two identical units, disposed in opposite directions, each unit having a base and two opposite legs, the legs of the two oppositely disposed units being interdigitated when they are mounted within the housing. Such units constitute supporting-guiding components upon which they are disposed on the right and left driving rolls. The surrounding walls of the supporting-guiding components are shaped as two opposite quarter-cylinder sectors with two coaxial (front and rear) semi-holes, the axis of which coincide with the geometrical axis of the electrode wire. In the quarter-cylinder sectors, two supporting holes are also provided, the axis of which is perpendicular to the geometrical axis of the electrode wire and crosses it at an angle alpha. The supporting axes of both supporting-guiding components cross each other at an angle 2 alpha, while the electrode wire is disposed in the bisectrix of the angle.
REFERENCES:
patent: 4333594 (1982-06-01), Cloos
patent: 4429821 (1984-02-01), Jezelov et al.
Bogdanov Todor D.
Jelezov Jivko Y.
Kantchev Dimiter V.
Marinov Julian P.
Popov Peter A.
duBois Steven M.
Levy Stuart S.
Ziit
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