Sewing or looping device for closing a tubular knitted article

A sewing or looping device for closing a tubular knitted article, comprising a body, two needles, a yarn support, and a cutting unit;

• a front side of the body having two bases spaced apart from each other, the two needles being pivotally connected to the two bases, respectively, and pivoting movement paths of the two needles are orthogonal to each other, the yarn support having a first section adjustably disposed on one of the bases, and a second section of the yarn support opposite the first section extends along an axial direction, the cutting unit being pivotally connected to the one of the bases where the yarn support is located, characterized in that:
• a cutting direction of the cutting unit is parallel to the axial direction of the yarn support;
• the two bases include a first base and a second base, the cutting unit is pivotally connected to the second base, and includes a housing, a cutting member and a hook member, the housing is connected to a power unit and has a cutting arm extending along the axial direction toward the second base, the cutting arm has a fixing surface, the cutting member is fixed on the fixing surface, and a side of the cutting member facing away from the housing has a first cutting edge, a hook groove is recessed at one lateral edge of the hook member, the hook member has a second cutting edge facing the hook groove and further has a slide slot extending along the axial direction, the slide slot has a first end adjacent to the first base and a second end which is located farther away from the first base than the first end, the hook member is coupled to the cutting arm and abutted against the cutting member by a locking bolt inserted in the slide slot, when the first end is abutted against the locking bolt, the hook member is in a withdrawn state, and when the second end is abutted against the locking bolt, the hook member is in an out-extended state, when the hook member is in the out-extended state, the second cutting edge faces the first cutting edge, and when the hook member is in the withdrawn state, the first cutting edge is tangent to the second cutting edge to define a cutting point, the hook member has an end surface and a guiding slope, when the cutting unit is in an active position, the end surface faces the needle of the first base, and the guiding slope has one end connected to the end surface and another end connected to the hook groove.