Apparatus for the grinding of cereal
AssigneeGebrueder Buehler AG
InventorsRobert Linzberger, Leendert Ketting, Ernst M. Heer
Life of this patent
Estimating the term…
Abstract
Apparatus for grinding cereal grain involving the controlling of grinding forces between a pair of cooperating grinding rolls, by determining the actual grain receiving gap between the rolls during rotation thereof and regulating the gap in accordance with a preset desired dimension. A pair of parallel grinding rolls are mounted for movement of one roll relative to the other in a generally radial direction. One of the rolls is yieldingly biased toward engagement with the other roll. Adjustment mechanism is operative to limit movement of the bias roll toward said other roll and to establish said preset dimension or gap between the rolls.
Claims25
A roller mill for the milling of cereal or the like comprising:
- a main base frame arranged to be mounted on the floor of a mill house;
- first and second mill rolls;
- a pair of fixed bearing housings supported on said main base frame to carry said first mill roll;
- a pair of movable bearing housings supported on said main base frame to carry said second mill roll and adjustable loading means operative between said fixed bearing housings and said movable bearing housings to contain the separating forces acting on said mill rolls in operation of the mill;
- independently from said main frame;
- said adjustable loading means having a tie member;
- first roll gap adjusting means arranged between said fixed and movable bearing housings and second roll gap adjusting means operatively interposed between said first roll gap adjusting means and said tie member;
- said fixed and movable bearing housings being respectively mounted on said tie member independently of said main base frame and said tie member being supported on said main base frame, said first roll gap adjusting means including a loading member arranged between said fixed and movable bearing housings and said second roll gap adjusting means including a lever means pivotally mounted on one of said bearing housings and associated with said first roll gap adjusting means so that the pivoting of said lever means adjusts the roll gap and a screw adjustment device operatively arranged between said lever means and said tie member.
A roller mill for the milling of cereal or the like comprising:
- a main base frame arranged to be mounted on the floor of a mill house;
- first and second mill rolls;
- a pair of fixed bearing housings supported on said main base frame to carry said first mill roll;
- a pair of movable bearing housings supported on said main base frame to carry said second mill roll and adjustable loading means operative between said fixed bearing housings and said movable bearing housings to contain the separating forces acting on said mill rolls in operation of said mill, independently from said main frame, said adjustable loading means having a tie member;
- first roll gap adjusting means arranged between said fixed and movable bearing housings and second roll gap adjusting means operatively interposed between said first roll gap adjusting means and one of said bearing housings;
- said fixed and movable bearing housings being respectively mounted on said tie member independently of said main base frame and said tie member being supported on said main base frame;
- said first roll gap adjusting means including a loading member arranged between said fixed and movable bearing housings and said second roll gap adjusting means including a screw adjustment device operatively arranged between said loading member and one of said fixed or movable bearing housings;
- servo motor driven means connected to said screw adjustment device for adjusting the roll gap between said rolls;
- a transducer arranged to give a first signal directly related to said roll gap;
- preset means for establishing a second signal related to a desired value of said roll gap;
- and
- a controlled arranged to compare said first and second signals and to drive said servo motor driven means to maintain said roll gap at a desired value in response to said comparison.
Dependencies are inferred from the claim text.