Automatic sewing machine for various articles, in particular leather articles

An automatic machine for sewing different kinds of articles, especially leather articles such as an upper and a toe cap for producing an open moccasin, the machine comprising:

• a machine support frame having a fixed support (1) fastened thereto;
• a longitudinal guide (3) that is removably mounted on the fixed support;
• flat slopping surfaces (3a, 3b) made mutually and upwardly convergent on said longitudinal guide to define first and second longitudinal work tops (P1, P2) respectively, a longitudinal slot (27) made in an upper part of the sloping surfaces;
• hold down means (8, 9) located above the guide which in conjunction with the work tops guide juxtaposed edges (30a, 40a) of the articles (30, 40) placed on the work tops;
• a needle (14, 25) situated beside the second work top (P2) and movable so as to define two extreme positions, a first lowermost position in which said needle pierces the juxtaposed edges of the articles resting on the work tops, the first position reached by the needle passing through the slot of the work tops, and a second raised position in which said needle is extracted from the juxtaposed edges of the articles;
• a rotary hook device (19) located beside the first work top which works in conjunction with the needle to sew a stitch when the needle is in the lowermost position, when the needle pierces the leather articles;
• means for reciprocating the rotary hook device and said needle so that said rotary hook device and needle are given a reciprocating longitudinal motion along the guide, a forward stroke moving the rotary hook device and needle towards the machine frame so as to move the leather articles forward.