1. Device (1) for re-shredding shredded already harvested crops (E) comprising at least one first and one second roller (10, 20) with parallel axes (11, 21) of rotation, opposite outer surfaces which restrict grinding gap (3), wherein each of the first and second rollers (10, 20) comprises portions (15, 16 25, 26) in the form of a truncated cone having a supporting surface (G, G ) and end face (D, D ), and the outer surface (2) extending at an angle to the axis (11, 21) of rotation of the respective roller (10, 20), characterized eesya in that the support surface (G, G ) and the end faces (D, D) portions (15, 16 25, 26) arranged on at least one first roller (10) and at least one second roller (20) are alternately changing in the axial direction (R) diametr.2. Device according to claim 1, characterized in that the rollers (10, 20) is arranged on at least two portions (15, 16 25, 26). c differing from each other diameters of their bearing surfaces (G, G ) and end faces (D, D ). 3. Apparatus according to one of claims. 1 or 2, characterized in that the first roll (10) portion (15) rising in the axial direction (R) of the outer surface (2) alternates with a portion (16) decreasing in the axial direction (R) of the outer surface (2) , wherein the second roller (20) opposite said pair located portion (25) decreasing in the axial direction (R) of the outer surface (2), alternating with a portion (26) rising in the axial direction (R) of the outer surface (2). 4. Apparatus according to one of claims. 1 or 2, characterized in that the opposite portions (15, 16) of the first roller (10) are arranged to complement their portions (25, 26) of the second roller (1. Устройство (1) для повторного измельчения уже измельченной убранной культуры (Е), содержащее, по меньшей мере, один первый и один второй валик (10, 20) с параллельными осями (11, 21) вращения, противоположные наружные поверхности которых ограничивают измельчающий зазор (3), причем каждый из первых и вторых валиков (10,
