AUTOMATIC COILED MATERIAL SWITCHING DEVICE

Provided is an automatic coiled material switching device, which comprises a machine table (8), a left unwinding device (81), a right unwinding device (82) and a rotatory cutting device (83); wherein the machine table is provided with a left auxiliary roller (84), a right auxiliary roller (85) and a plurality of fixed rollers; the rotary cutting device comprises a bearing seat (1), a bearing (11) arranged on the bearing seat, a rotating main body (2) arranged on the bearing, a rotating mechanism for driving the rotating main body to rotate on the bearing seat, a turning mechanism for driving the bearing seat to turn around, and a driving mechanism; the rotating main body comprises an upper part (21) and a lower part (22); a gap (23) for allowing a material to pass through is formed between the upper part and the lower part; and the rotating body is provided with a pressing mechanism for compressing the material and a cutting mechanism for cutting the material. The automatic coiled material switching device implements the automatic switching of material belts of the left unwinding device and the right unwinding device by arranging the rotating main body, rotating mechanism, the turning mechanism, the driving mechanism, the pressing mechanism and the cutting mechanism.