V-belt angle cutter capable of feeding from front side of positioning groove and angle cutting method

The invention discloses a V-belt angle cutter capable of feeding from the front side of a positioning groove and an angle cutting method, and belongs to the technical field of V-belt manufacturing. A positioning mechanism is arranged on one side of a positioning wheel and comprises a positioning groove, a tooth-shaped adhesive tape is clamped into the positioning groove, a positioning plate is arranged at the bottom of the positioning groove, the top face of the positioning plate is attached to the tooth-shaped adhesive tape, a left baffle and a right baffle are arranged on the two sides of an opening of the positioning groove correspondingly, the front end of the left baffle and the front end of an arc-shaped positioning plate extend out of the front end of the right baffle, and a notch in the front end of the right baffle is a lower cutter area. According to the V-belt angle cutter capable of feeding from the front side of the positioning groove and the angle cutting method, errors during angle cutting of a