Winding needle assembly, winding apparatus, production device, and method for winding electrode assemblies

A winding apparatus, comprising:

• a winding needle assembly and a driving mechanism,
• wherein the winding needle assembly comprises:
• a support seat;
• and
• a winding needle rotatably connected to the support seat around an axial direction of the winding needle, the winding needle extending out of the support seat along the axial direction of the winding needle, so as to form a plurality of winding parts located outside the support seat on the winding needle and the winding parts being configured to wind electrode assemblies,
• wherein the winding needle comprises at least two execution sections and a rotating member, the at least two execution sections are separately disposed and are rotatably connected to the support seat around the axial direction of the winding needle, each of the at least two execution sections has a winding part, the rotating member is rotatably connected to the support seat around the axial direction of the winding needle, each of the at least two execution sections is rotatably connected to the rotating member,
• wherein each of the at least two execution sections comprises a connecting part and a driving part, the connecting part and the driving part are respectively connected to two ends of the winding part along the axial direction of the winding needle, the connecting part is detachably connected to the rotating member, and the driving part is configured to be connected to the driving mechanism;
• and
• wherein the driving mechanism is configured to drive the winding needle to rotate relative to the support seat around the axial direction of the winding needle, so that the winding part winds the electrode assemblies.