| 摘要 |
A sizing apparatus for produce or the like comprises a framework supporting a plurality of vertically spaced levels of sizer assemblies comprising a number of horizontally spaced apart, rotating screw conveyors each cooperating with an associated adjustable sizer blade arranged to provide an equally sized opening between each screw and associated sizer blade on a level whereby to permit produce having a diameter smaller than the opening to fall through to the next lower sizing level. Each successive lower sizing level has progressively smaller sized openings in order that only successively smaller diameter produce may pass through the sizer openings. The sizing apparatus utilizes a specially configured screw conveyor in which each thread between adjacent crests is semi-circular in profile in order to facilitate the separation of produce according to its smallest diameter. The sizer blades are arranged so that the openings provided on a level are uniform and adjustable in unison and the sizing openings on each level are adjustable independently of the openings on other levels, whereby produce may be separated into any desired size category.
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