Means for sensing and controlling the amount of starch applied t

Details Means for sensing and controlling the amount of starch applied t Means for sensing and controlling the amount of starch applied t

1981-03-05

1983-01-18

Simmons, David A.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

118679, 156356, 156378, 324 61R, B05B 100, G01R 2726

Patent

active

043690807

ABSTRACT:
A means for sensing the amount of a liquid bonding agent applied to secure a corrugated medium to a liner includes a capacitance device, one plate of which is formed by a sensing surface positioned adjacent the corrugated medium, liner and the applied liquid bonding agent. The other plate of the capacitance device is formed by the moving corrugated medium, liner and the applied bonding agent. There are means for applying an electric signal to the sensing surface and means for sensing variations in that signal caused by the amount of the liquid bonding agent applied to the corrugated medium and liner. The sensed variations in the applied electric signal are used to control the application of the bonding agent to the corrugated medium. The capacitance device may include a plurality of individual sensing areas having a width and spacing related to the width and spacing of the tips of the corrugated medium. The periodic signal generated by the capacitance device may be used to measure the actual amount of bonding agent, the residual moisture level in the liner and the amount of material passing from the single facer which is applying the liner to the corrugated medium.

REFERENCES:
patent: 3222591 (1965-12-01), Mynall
patent: 3227951 (1966-01-01), Dykaar
patent: 3378676 (1968-04-01), Clement
patent: 3523246 (1970-08-01), Hall et al.
patent: 3584579 (1971-06-01), Rothenberg

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