Mouth film device with positioning and wire-pressing features

A mouth film device used for crimping a crimping body (71) and a cable (72) of a wire-pressing component (70), the crimping body (71) having a covering piece (711) and an extended plate body (712), a transmission line (721) of the cable (72) passing through the covering piece (711), the mouth film device comprising:

• two mouth film bodies (40, 50), each having an upper locking part (41, 51) and a crimping part (42, 52), wherein each upper locking part (41, 51) has a recessed locking groove (411, 511), and each crimping part (42, 52) has several corresponding crimping grooves (421˜424) and crimping protrusions (521˜524), and
• one of the mouth film bodies (40, 50) having an extended surrounding plate body (54) on a side located close to the crimping protrusions (521˜524), when the crimping protrusions (521˜524) are pressed together, the surrounding plate body (54) has recessed holes (541˜543) located corresponding to the crimping grooves (421˜424), wherein a height (H) of each recessed hole (541˜543) is smaller than a height (h) of the covering piece (711) of the crimping body (71), a width (W) of each recessed hole (541˜543) is greater than a width (w) of the extended plate body (712) of the crimping body (71).