Device for separating at least two adjacent strands of material and system including such a device

A device for separating at least two strands of material created by longitudinally cutting a continuously moving strip of material, wherein the device comprises:

• upstream guiding means of the two strands of material, guiding them along one and the same direction, known as the main direction,
• a spacer to space the strands of material along a direction extending in the moving plane of the strands of material, the spacer including guiding means configured to guide the strands of material along two separate and divergent directions,
• downstream guiding means of the two separated strands of material, guiding them along one and the same direction,
• the upstream guiding means and the spacer being positioned so that the moving plane of the strands of material in the spacer forms a nonzero angle with the moving plane of the strands of material between the upstream guiding means and the spacer,
• the spacer and the downstream guiding means being positioned so that the moving plane of the strands of material in the spacer forms a non-zero angle with the moving plane of the strands of material between the spacer and the downstream guiding means,
• wherein the spacer comprises at least two adjacent support parts, each support part including at least two successive guiding cylinders with parallel axes rotationally movable about their axes, to separately guide one of the strands of material;
• the axes of rotation of the two guiding cylinders belonging to two separate support parts forming a non-zero angle between them;
• wherein at least two adjacent guiding cylinders belonging to separate support parts are in contact at one of their ends.