Slice lip control mechanism

Details Slice lip control mechanism Slice lip control mechanism

1988-07-20

1992-03-17

Alvo, Steve

Paper making and fiber liberation

Apparatus

Automatic control

162263, D21C 102, D21C 106

Patent

active

050965425

ABSTRACT:
A slice lip control mechanism for the slice lip of a head box of a paper making machine. The control mechanism has a linear actuator, a spindle extending from the actuator and a link on the lip to attach to the spindle. Movement of the actuator is thus transmitted to the lip, through the spindle, to deform the lip locally to control a head box outlet orifice whose upper edge is defined by the slice lip. The spindle includes a pressure transducer whereby the load applied to the lip by the actuator that communications with the pressure transducer through the spindle can be assessed and the lip's position calculated.

REFERENCES:
patent: 4342619 (1982-08-01), Gladh
patent: 4726883 (1988-02-01), Shroeder
patent: 4773272 (1988-09-01), Trungold

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