Cutting module of cutting machine for window covering

A cutting module of a cutting machine for trimming a window covering, wherein the window covering comprises a covering material;

• comprising:
• a main body, wherein the main body has two opposite sides, which are a first side and a second side, respectively;
• the main body has a through hole communicating the first side and the second side, wherein the through hole is adapted to be passed through by the covering material of the window covering;
• a blade, which has a cutting edge, wherein the blade is provided corresponding to the second side of the main body, and is movable back and forth along a sliding path;
• the cutting edge passes over the through hole as the blade slides, and therefore is adapted to cut off a part of the covering material beyond the second side when the covering material passes through the through hole;
• and
• an elastic holding member, which is provided corresponding to the through hole, and is adapted to exert an elastic force on the covering material when the covering material passes through the through hole to be trimmed, whereby to maintain the covering material at a predetermined position where the covering material does not contact at least a wall of the through hole;
• wherein the elastic holding member has two elastic plates which are adapted to provide the elastic force to the covering material passing through the through hole by being deformed, whereby to maintain the covering material at the predetermined position;
• wherein the two elastic plates are provided on the first side of the main body on opposite sides of the through hole, respectively, to provide the elastic force on opposite sides of the covering material, wherein the elastic plates are configured to deform by the covering material toward the blade.