Abstract: A circular cutter contains: a connection assembly having a first extension and a first fixing head. The first fixing head has a locking hole. The first extension has a cavity, a first groove, and a second groove. The cavity accommodates a protection assembly which has a second extension and a second fixing head, wherein the second extension has a projection and a flexible deformation section connecting with the projection, the flexible deformation section deforms, and the projection retains in the second groove of the connection assembly. An elongated section is defined between the flexible deformation section and the second fixing head and is fixed in the first groove, the second fixing head has a first orifice corresponding to the locking hole of the connection assembly, such that a fixing assembly is rotatably connected with a cutting blade and is fixed in the locking hole.

Abstract: A fabric folding machine contains: a body and a limiter. The body includes an external housing, an internal housing, and a connection portion. The external housing has a first peripheral fence, a second peripheral fence, and two third peripheral fences, wherein the internal housing is disposed in the external housing, and between the external housing and the internal housing is defined a through hole which has a first segment and a second segment, a height of the first segment is more than that of the second segment, and a width of the internal housing gradually decreases from the first segment to the second segment. The first peripheral fence has a first orifice defined, and the second peripheral fence has a second orifice and two guiding apertures. The limiter includes a sheet and a protrusion, and the sheet has two openings defined thereon.