Metal deforming – With use of control means energized in response to activator... – Sensing work or product
Patent
1977-08-29
1979-09-11
Mehr, Milton S.
Metal deforming
With use of control means energized in response to activator...
Sensing work or product
72 29, B21B 3606
Patent
active
041671058
ABSTRACT:
A rolling mill section for rolling or roughing slab, plate, billet or structural section is provided with a load sensing arrangement for determining if the extent of non-synchronization between the respective drive motors of the rougher stand and the edger stand is sufficient to cause significant tensile or compressive loading in the member being rolled, as it passes between the two stands. The existence of such loading is determined by providing a coupling or utilizing existing mechanical connection of the one or both structures of the stands, and measuring reactive forces generated thereat by the passage of the member being rolled, tending to displace one stand relative to the other. A readout from the force measuring means is used to control the relative torques of the respective stand motors so as to promote synchronicity of the two drives, in order to reduce damaging overloads in the edger or in the rougher which otherwise result when significant lack of synchronicity is present.
The invention is directed to a rolling mill and in particular to a mill section containing a rougher stand and an edger stand in adjacent relation, as in a steel mill, wherein the member being rolled is of sufficient length and stiffness to transfer significant loads between the stands, and to a method of operating the section.
REFERENCES:
patent: 1109885 (1914-09-01), Webster
patent: 2650495 (1953-09-01), Norton
patent: 3214970 (1965-11-01), Flinth
patent: 3290912 (1966-12-01), Reid
patent: 3310971 (1967-03-01), Motomatsu et al.
patent: 3964282 (1976-06-01), Stubbs et al.
Dominion Engineering Works Limited
Mehr Milton S.
Patch Daniel
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