Pulping machine with novel grinding head

The utility model discloses a pulping machine with a novel grinding head, which is characterized in that a bearing set is arranged in a bearing seat, a connecting shaft is sleeved in the bearing set in a matching way, a coupler is arranged above the bearing set, the coupler comprises a vertical shaft and a horizontal support plate, and a water leakage prevention circular truncated cone is arranged at a gap between the horizontal support plate and the bearing seat in a matching way; the water-leakage-proof circular truncated cone is in a cover body shape and covers the upper portion of the bearing seat, a gap is formed between the water-leakage-proof circular truncated cone and the bearing seat, gap sealing is formed between the water-leakage-proof circular truncated cone and the bearing seat, and the upper surface of the water-leakage-proof circular truncated cone is upwards provided with a circle of annular protruding edge; a guiding circular truncated cone is arranged on the periphery of the feeding channel