| 摘要 |
A sewing machine (M) for realising a semi-finished work-piece (100) for a shoe, the semi-finished work-piece (100) comprising: an underfoot insole (101) comprising: a body (111) and a border (102) fixed transversally to the body (111); an upper (103) and a welt (104); the insole (101), the upper (103) and the welt (104) being arranged such that the perimeter edge (103B) of the upper(103) is flanked to and interposed between the welt (104) and the border (102) of the insole (101); the machine (M) comprising: a curved needle (4), activatable along a curved trajectory such as to perform an outward run in a first oscillating direction (W), and a return run, in a second oscillating direction (Q), opposite the first oscillating direction (W); a rotary hook device (5), comprising an external part (50) and an internal part (51) activatable in rotation, arranged such as to receive the needle (4) during the outward run thereof; translating means, able to translate the needle (4) and the rotary hooking device (5), in runs of a size equal to a predetermined step; an abutment (2), positionable transversally along the trajectory of the needle (4) and comprising: a surface (20) for abutting the side of the border (102) opposite the side thereof flanked to the perimeter edge (103B) of the upper (103); a through-hole, arranged in the surface (20) such as to enable transit of the needle (4) internally thereof. The rotary hook device (5) and the abutment (2) are arranged such as to enable the side of the border (102) abutted by the surface (20) to match the said surface (20). Further, the internal part (51) of the rotary hook device (5) is activatable in a rotation direction (V) equal to the first oscillating direction (W) of the needle (4). |
