Forming machine for metal strips, in particular for the manufacture of plates for electrics accumulators

A forming machine for forming a lead strip into a mesh adapted for electric batteries the lead strip moving substantially continuously in a direction of motion thereof;

• the machine comprising:
• moving means (2,3) designed to convey a continuous strip (10) through an incision zone (8);
• forming means (7) associated with said incision zones (8) and provided with a plurality of teeth (9) which are operationally actuated by actuator means (11) so as to make incisions in said strip (10) and form a continuous mesh (12), wherein said actuator means (11) move said forming means (7) in accordance with a law of motion having:
• at least one component oriented in the direction of feeding (A) of said strip (10) so as to allow said teeth (9) to advance substantially in synchronism with said strip (10) during an incision step of the machine (1);
• at least one component oriented in a direction (B) substantially perpendicular to said direction of feeding (A) of said continuous strip (10) so as to allow said teeth (9) to make incisions in and expand said continuous strip (10) during said incision step of the machine (1);
• said strip (10) being fed in a continuous manner by said moving means (2,3);
• whereby the teeth (9) are driven in a path generally described by an ellipse having a major axis (E) inclined by an acute angle (M) to the direction of motion of the strip and to a plane of the lead strip.