Machine for continuously chopping cassava root - by shear action of radial blades on rotor passing between counter blades fixed to casing

摘要

A machine for continuously chopping up root vegetables etc. into fine pieces comprises an outer casing contg. a motor driven rotor on a horizontal axis. The motor is made up of a centre shaft on which are fixed a set of equally-spaced, coaxial, annular flanges. Each flange is fitted with a number of radial shear blades, which are equi-spaced angularly around the flange. The blades if all rotors are axially aligned so that each line of blade tips is parallel to the rotor axis. As the rotor turns, each line of blades in turn reaches a radially horizontal position on its downward path. At this point the line of blades passes through a horizontal line of counter-blades. The counter blades have the same lateral spacing as the rotor blades. The counter-blades are rooted to the casing and extend between the rotor blades almost to the centre shaft. Used for chopping root vegetables, esp. cassive root, into fragments. Machine operates with pure shear action by light blades on a rotor turning at approx. 1000 r.p.m.. The machine is cheaper than a hammer mill with heavy rotor turning at 3,000-4,000 r.p.m. The new machine can produce, consistently sizes fragments, i.e. is approx. 15 mm, instead of th emixt. of lumps, fragments and fines from a hammer mill. Screening is unnecessary.