The invention relates to a ring opening, bidirectional stirring, arranging and
grinding device. The ring opening, bidirectional stirring, arranging and
grinding device comprises an opening
machine, an automatic arranging device, a
grinding device and a collecting tray; the automatic arranging device is arranged at the discharging opening of the opening
machine, and is used for arranging opened
piston rings tidily according to the line shapes at openings; the grinding device is arranged at the rear end of the automatic arranging device, and is used for grinding the openings of the
piston rings which are arranged tidily; the colleting tray is positioned at the rear end of the grinding device and is used for collecting ground
piston rings; the automatic arranging device comprises a rotating material stirring
brush a and a rotating material stirring
brush b which are arranged on the opening
machine, a material rod which extends outwards from the discharging opening of the opening machine, and a material stop piece which is arranged at the
tail end of the material rod; the problem that batch grinding of the openings of the piston rings cannot be realized because the piston rings cannot be arranged automatically after being opened and some automatic arranging equipment is complicated in structure and poor in arranging effect is solved.