US 5,873,301 AGranted

Roll type husking apparatus with inclined guide chute

AssigneeSatake Corporation

InventorsSatoru Satake, Kenjiro Okuno, Akira Fukuhara, Seiji Yorioka

Life of this patent

Estimating the term…

Loading patent…

Abstract

A husking apparatus for cereals comprises a pair of rolls provided parallel to each other with a clearance therebetween, and an inclined guide chute situated above the rolls. The guide chute slides down cereal grains between the rolls, and the rolls rotate in opposite directions, respectively, to nip and shell the cereal grains therebetween. The guide chute and the rolls are located so that a guide surface of the guide chute is substantially perpendicular to a line connecting the centers of rotational shafts, and that an extension line from the guide surface passes within a range of .+-.10 mm on both sides of a middle point of the clearance between the first and second rolls. The guide surface of the guide chute has such an inclination that the cereal grains spread all over a width of the guide surface in the substantially single layer of a band-like shape and are accelerated up to a speed less than peripheral speeds of the rolls while they slide down along the guide surface. The cereal grains are thus uniformly fed between the rolls in regular postures and have less irregular reflection due to collision with the rolls, and it is possible to perform reliable husking which causes less broken grains.

Claims16

Dependent claims

A husking apparatus for cereals comprising:

a hopper storing cereal grains;
a first roll disposed below the hopper;
a second roll provided substantially parallel to said first roll with a clearance left from said first roll, said first and second rolls rotating in opposite directions with a difference between speeds thereof, respectively, to nip and shell the cereal grains between said rolls;
a feeding adjustment device including a guide chute disposed between said hopper and said first and second rolls, said guide chute having an inclined guide surface along which the cereal grains slide down between said first and second rolls;
said guide chute and said first and second rolls being located so that said guide surface of said guide chute is substantially perpendicular to a line connecting centers of rotational shafts of said first and second rolls and an extension line from said guide surface passes within a range of .+-.10 mm on both sides of a middle point of said clearance between said first and second rolls;
and
said guide surface of said guide chute having such an inclination that the cereal grains, while sliding down along said guide surface, spread all over a width of said guide surface in a substantially single layer of a band-like shape and are accelerated up to a speed less than peripheral speeds of said first and second rolls.

4 more elements

Dependencies are inferred from the claim text.