Wire drawing device for copper wire processing

The utility model discloses a wiredrawing device for copper wire processing, which comprises a support device, a pretreatment device is fixedly mounted at one end of the support device, and transmission devices are fixedly mounted in the support device at equal intervals. The transmission device comprises a driven gear, a connecting shaft, a supporting ring, a contact sponge ring, a limiting screw rod, a positioning check block and a butt joint groove, the connecting shaft is fixedly connected to the center of the side end of the driven gear, the positioning check block is fixedly connected to the outer ring of the end, away from the driven gear, of the connecting shaft, and the butt joint groove is formed in the supporting ring; and the positioning check block is located in the butt joint groove, the supporting ring is fixedly connected to the interior of the contact sponge ring, the limiting screw penetrates through the interior of the supporting ring in a threaded mode, and the pretreatment device comprise