Grinding machine

The utility model discloses a dull polish machine, relates to the dull polish machine technical field, including the support, the lower part of the front end middle part of support is provided with spacing subassembly, and the rear of spacing subassembly is attached to the placing mechanism, the lateral upper end of support is provided with cooling mechanism. The grinding device is reasonable in structure, the motor effectively drives the connecting plate and the limiting frame to swing in a reciprocating mode, and therefore the material containing frame on the inner side of the limiting frame is driven to swing in a reciprocating mode, materials in the material containing frame can make full contact with the grinding roller conveniently, grinding is achieved, and after grinding is finished, a user rotates the limiting assembly to separate the limiting assembly from the material containing frame. During grinding, a water pump effectively pumps cold water in a cold water tank into an inner interlayer of the li