Tab roll replacing device and winding apparatus

A tab roll replacing device comprising:

• an unwinding mechanism, comprising a first unwinding assembly and a second unwinding assembly for unwinding and outputting a tab material strip;
• a roll replacing mechanism, disposed downstream of the unwinding mechanism, and comprising a transfer plate, and a first floating clamping assembly and a second floating clamping assembly mounted on the transfer plate, wherein the first floating clamping assembly and the second floating clamping assembly are respectively configured to clamp the tab material strip output by the first unwinding assembly and the second unwinding assembly;
• the roll replacing mechanism further comprising a first fixed clamping assembly disposed downstream of the transfer plate and configured to clamp the tab material strip passing through the first fixed clamping assembly;
• the transfer plate is configured to reciprocate in a first direction, and in a process of reciprocal movement of the transfer plate in the first direction, the first floating clamping assembly and the second floating clamping assembly can be alternately aligned with the first fixed clamping assembly;
• a cutting mechanism, configured to cut the tab material strip jointly clamped by the first floating clamping assembly and the first fixed clamping assembly, or the second floating clamping assembly and the first fixed clamping assembly;
• and
• a strip splicing mechanism, configured to connect the tab material strip clamped by the first fixed clamping assembly and the tab material strip clamped by the first floating clamping assembly or the second floating clamping assembly that aligned with the first fixed clamping assembly.