Trimming device for formed plastic parts

The invention discloses a device for trimming a formed plastic part, which relates to the technical field of plastic part processing, and comprises a base, the top of the base is fixedly connected with a fixed frame, the inner side of the fixed frame is provided with a driven gear table of the plastic part, and one side of the fixed frame is provided with a moving plate; the moving plate is provided with a trimming assembly used for conducting trimming treatment on the plastic parts. According to the trimming device for the formed plastic part, under the driving of the air cylinder, the movable plate drives the scraper to be accurately aligned to and attached to the edge of the plastic part, the scraper can efficiently and accurately cut off a residual edge ring of the plastic part by utilizing the synchronous rotation function of the servo motor, errors and time consumption of manual operation are greatly reduced, and the trimming efficiency is improved. The automation level of a production line and the prod