Raw material crushing and fine grinding device for PC-ABS alloy

The utility model relates to a PC-ABS alloy raw material crushing and fine grinding device which comprises a feeding hopper, the lower end of the feeding hopper is coaxially and fixedly communicated with a grinding hopper, a primary crushing device is rotatably installed between the left side wall and the right side wall of the grinding hopper, and a power transmission device is arranged at the left end of the grinding hopper. A grinding device located under the primary crushing device is rotationally installed between the two side walls of the grinding hopper. The grinding device comprises two grinding transverse shafts rotationally connected with the inner wall of the grinding hopper, the left ends of the two grinding transverse shafts penetrate out of the grinding hopper and are coaxially and fixedly connected with pinions correspondingly, the two grinding transverse shafts are coaxially and fixedly connected with grinding rollers correspondingly, the inner wall of the grinding hopper is fixedly connected