Container pre-cutting system

A container pre-cutting system, applicable to a multilayer and/or a single-layer material (3) container forming machine (4) that uses intermittent advances of multilayer and/or single layer material of a length according to an advance step of the container forming machine;

• said system being suitable for making a lower pre-cut (32) on a lower surface and an upper pre-cut (32) on an upper surface of multilayer and/or single-layer material (3), comprising:
• a lower pre-cutting device (1) and an upper pre-cutting device (2), provided with respective lower blades (11) and upper blades (21) having relative vertical movement with respect to the multilayer and/or single-layer material (3);
• wherein said lower pre-cutting device (1) and upper pre-cutting device (2) are separated in an advance direction of the multilayer and/or single-layer material (3) by a length that is approximately equal to a multiple of the advance step of the container forming machine;
• and
• wherein the upper pre-cutting device (2) comprises:
• a lower die (20) and the upper blade (21) mounted to allow relative vertical movement with respect to a floating stop (22) in turn provided with limited vertical movement with respect to a punch plate (23);
• said upper blade (21) being mounted on calibrated springs (24);
• wherein the multilayer and/or single-layer material (3) is configured to press against the lower die (20) when the upper pre-cutting device (2) is actuated.