Heater for double-screw extruder

The utility model discloses a heater for a double-screw extruder, and relates to the field of double screws. Comprising a box body, heating rods are arranged on the inner wall of the box body at equal intervals, a detachable cover is arranged on the front face of the box body, handles are arranged at the top and the bottom of the front face of the box body, push-pull grooves sleeve the handles, handles are arranged at the top and the bottom of the front face of the detachable cover, one end of each handle is fixedly connected with a rotating shaft, and an extrusion block sleeves the rotating shaft; a bearing plate is arranged above the extrusion block, a protruding block is fixedly connected to one end of the bearing plate, a clamping groove is formed in one side of the protruding block, and a clamping block is arranged in the clamping groove in a sleeved mode. The device has the advantages that the design of the extrusion block, the rotating shaft, the bearing plate and the telescopic spring is utilized, the