Easily-opened high-precision positioning injection and spraying device

The utility model discloses an easy-to-open cap high-precision positioning injection device, which comprises a control system, a main synchronous belt and a main motor, a cap body positioning hole is arranged on the main synchronous belt, the main motor is connected with the main synchronous belt through a main transmission mechanism and an indexing box mechanism with an encoder, and the main transmission mechanism is connected with the main synchronous belt. A cover separating mechanism, an error detecting mechanism and an injection mechanism are further arranged on the rack, and the cover separating mechanism, the error detecting mechanism and the injection mechanism are all arranged above the main synchronous belt. The servo motor is used for error compensation, the servo motor drives the main synchronous belt with the cover body positioning holes to move to convey and position the cover body under the control of the embedded system, the positioning accuracy and the product quality of the cover body in the