Metal deforming – By extruding through orifice – With product handling
Patent
1986-09-30
1988-07-26
Larson, Lowell A.
Metal deforming
By extruding through orifice
With product handling
72378, B21C 3502
Patent
active
047592079
ABSTRACT:
Transfer means for transferring a continuous elongate product, such as wire, bar or tubular products associated with a continuous extrusion machine, between two stations in the production line. Axial tensioning means 8, 10 each consisting of a pair of resiliently tyred wheels 12, 14 positioned to grip the elongate product 2 and driven by a low inertia, electric, motor induce an axial tension in the elongate product 2. The elongate product forms a curve 20 of catenary form between the axial tensioning means 8, 10. A control signal indicative of the gravitational deflection of the curve is derived from an ultra-light dancer arm 22, or an optical or ultra-sonic sensor, and is utilized in combination with a signal derived from product speed sensor means 24 to control the speed of the low inertia, electric, motors and thus the tension in the elongate product. By providing the axial tensioning means 8, 10 a degree of transient tolerance is obtained between, for example, extrusion speed and spooling speed thereby avoiding axial and radial deformation of the elongate product during transfer along the product line.
REFERENCES:
patent: 3586222 (1971-06-01), Rosen
patent: 3667664 (1972-06-01), Schroeder
patent: 3863481 (1975-02-01), Dibrell
Babcock Wire Equipment Limited
Kemon Solon B.
Larson Lowell A.
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