Combination weighing apparatus with uniform article distribution

Abstract

A combination weighing apparatus (1) includes: an article supplier (13) that has an outlet allowing articles supplied from outside to be discharged and conveys the articles in response to vibrations from a first vibrator (11); a distribution table (14) circular in plan view that discharges, in response to vibrations from a second vibrator (12), the articles supplied from the article supplier (13) in a radial direction while spiraling the articles in a circumferential direction; a wall (15) arc-shaped that is attached to a first circumferential edge (141) located downstream of the article supplier (13) and prevents discharge of the articles from the first circumferential edge (141), the first circumferential edge (141) being part of a circumferential edge of the distribution table; a plurality of feeding troughs (16) arrayed fanwise along a second circumferential edge (142) that is part of the circumferential edge of the distribution table (14) and is out of the first circumferential edge (141); and a controller (17) that controls the vibrations of the first vibrator (11) and the vibrations of the second vibrator (12) such that a discharge direction (D1) in which the articles are discharged from the article supplier (13) to the first circumferential edge (141) and a conveyance direction (D2) of the articles on the distribution table (14) corresponding to the first circumferential edge (141) are mutually inverse and an aggregate of the articles is formed at the first circumferential edge (141).

Dependencies are inferred from the claim text.