To provide a grain feeding device to which even grains having little variations in the grain diameter can be applied as they are without complication of a mechanism.SOLUTION: A grain feeding device feeding a predetermined number of grains in rows at a predetermined interval includes: a base 2 which has a planar placement surface 3 to which a plurality of grains are input and on which the input grains are placed a slide body 20 which slides in a manner of being capable of advancing/retracting along a predetermined direction on the placement surface 3 of the base 2 and receives the grains fed from the grains on the placement surface 3 at the advancement to array the grains in one row at the predetermined interval a discharge unit 50 which is provided on the base 2 and discharges the grains arrayed in one row by dropping them in the advancement process of the slide body 20 and collecting and sorting means 30 which is provided with a comb shaped protrusion 26 whose tip is formed with a reception recess 25 on the front edge in the advancement direction of a slide main body 21, and collects and sorts the excessive grains not received by the reception recess 25 so as not to discharge them from the discharge unit 50.SELECTED DRAWING: Figure 1【課題】機構が複雑になることなく、粒径に多少のバラツキがある粒体でもそのまま適用できる粉体の供給装置を提供する。【解決手段】所定数の粒体を所定間隔で列を成して供給するようにしたもので、複数の粒体が投入され投入された粒体が載置される平面状の載置面3を有したベース2と、ベース2の載置面3上を所定方向に沿って進退動可能にスライドし進出時に載置面3上の粒体から供給する粒体を受けて所定間隔で一列に整列させるスライド体20と、ベース2に設けられスライド体20の進出過程で一列に整列させた粒体を落下させて排出する排出部50とを備えた。スライド本体21の進出方向前端縁に、先端に受け凹部25を形成した突起26を櫛歯状に設け、受け凹部25で受けられなかった余分の粒体を排出部50から排出させないように寄せ分ける寄せ分け手段30を備えた。【選択図】図1
