The invention discloses a variable-distance
straw cutting-off device, relates to the field of environmental-friendly
mechanical equipment, and is used for solving the problem that lengths of straws
cut off by an existing
straw cutting-off device are uncontrollable. The variable-distance
straw cutting-off device comprises a feed inlet, a straw
chopper and a
discharge port, and further comprises a conveying belt, a top cover, a
crank connecting rod mechanism, a motor, a baffle and a cutting-off table; the top cover comprises a first top cover and a second top cover; the feed inlet is formed above one end part of the conveying belt; the first top cover is arranged at the upper part of the conveying belt; a first sliding rail is arranged at the top of the first top cover; a plurality of
combing pillars pointing to the conveying belt are arranged on the first sliding rail; an end part, which is far away from the feed inlet, of the first top cover is provided with the straw
chopper and the cutting-off table arranged up and down; the first top cover and the second top cover are respectively arranged at both sides of the straw
chopper; the baffle is arranged at an end part of the second top cover; a second sliding rail and a
pulley are arranged on the side wall of the second top cover; the
pulley is fixedly connected with the baffle. The variable-distance straw cutting-off device has the advantages that the structure is simple; the variable-distance straw cutting-off device is applicable to various straw cutting-off; the cutting-off length is accurate and controllable.