milling machine

Abstract

An abrasive grain-milling unit and a friction grain-milling unit are located on upper and lower portions of a pedestal, respectively. The friction grain-milling unit includes a grain feed trough to which a milled grain discharge trough of the abrasive grain milling unit is connected. A two-way grain feed trough and change-over valve is located above the abrasive grain-milling unit and is capable of selectively feeding grains either directly to the friction grain-milling unit or to the friction grain-milling unit via the abrasive grain-milling unit.

Description

technical field [0001] The present invention relates to a milling machine for milling grains such as rice and wheat, grinding resin granules, grinding coffee beans, and grinding the surface of other grains as raw materials. Background technique [0002] Conventionally, there is known a rice milling device formed by arranging a plurality of vertical grinding rice mills in parallel, arranging a plurality of horizontal friction rice mills in parallel, installing a desired number of grinding devices, and switching between the rice mills. Thus, rice milling is performed through a desired course (refer to Patent Document 1). [0003] The rice milling device decides which rice mill to use according to the variety and quality of grains and passes the grains several times, so as to improve the desired pass rate of polished rice, germination rate, and degree of polished rice. [0004] In addition, as the same rice milling device, after the grinding type rice milling course composed o...

AI Technical Summary

Problems solved by technology

[0006] However, in the rice milling devices described in the above-mentioned Patent Document 1 and Patent Document 2, the switching device for switching the flow paths between the rice mills is composed of a large elevator and a flow path switching device on the top of the elevator, so that the batch (ロット) When switching, residual rice is accumulated in the lower part of the elevator, flow path switching device, etc., and after the residual rice is removed, batch switching is performed, and there is a problem that batch switching takes time.

In addition, in the conventional rice milling apparatus, there is a problem that the rice milling process is lengthened by a plurality of rice milling machines, and the rice milling operation is prolonged, and the cost of electricity is increased.

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