Consumable rewinding device and 3D printing apparatus

A consumable rewinding device, comprising:

• a driving assembly, comprising a driving portion and a rotating shaft, wherein the driving portion is connected to the rotating shaft, the driving portion is configured to provide power to drive the rotating shaft to rotate;
• and
• a roller, wherein the roller is configured to bear a consumable spool;
• wherein the rotating shaft is connected to the roller, when the rotating shaft drives the roller to rotate, the consumable spool is driven to rotate by an acting force between the roller and the consumable spool, wherein
• the driving assembly further comprises a block, the block comprises a connecting portion and a guiding portion;
• the roller comprises a roller shaft, the connecting portion is configured for connection to the roller, and the guiding portion is connected to the rotating shaft;
• the acting force is a frictional force;
• and
• the driving portion is a torsional spring or a coil spring.

A 3D printing apparatus, comprising a consumable rewinding device, wherein

• the consumable rewinding device comprises:
• a driving assembly, comprising a driving portion and a rotating shaft, wherein the driving portion is connected to the rotating shaft, the driving portion is configured to provide power to drive the rotating shaft to rotate;
• and
• a roller, wherein the roller is configured to bear a consumable spool;
• wherein the rotating shaft is connected to the roller, when the rotating shaft drives the roller to rotate, the consumable spool is driven to rotate by an acting force between the roller and the consumable spool,
• the consumable rewinding device further comprises an abutting assembly, wherein the abutting assembly is configured to abut the roller against the driving assembly to provide a frictional force for rotation between the roller and the driving assembly.