The utility model provides a tray turns to machine, it includes: base, carousel and a plurality of cylinder, the carousel activity sets up in the top of base, and is a plurality of the cylinder can set up in the top of carousel with rolling. Compared with the prior art, the utility model discloses following beneficial effect has: 1, equipment structure is simple, and the energy consumption is low, can be heavily loaded, 2, it is easy and simple to handle, low cost, 3, can reach and be connected with automatic assembly line, also can use by the unit.