Roll-up device

A device for rolling up a sheet of paper into a roll and then ejecting the formed roll from the device, which comprises:

• a frame,
• first sheet drive means, a second sheet drive means, and a firsts guide means, said first sheet drive means, second sheet drive means and first guide means defining a roll-forming space with respective first, second and third contact points at the periphery of the roll to be formed in said space with said first and second sheet drive means and said first guide means, said roll-forming space having a center with connecting lines between the contact points forming a triangle in which the center is situated, wherein said first and second contact points are fixed, relative to said frame, and said third contact point defined by said first guide means is displaceable from said roll-forming space in order to follow the increase in diameter of the roll during its formation,
• said first guide means being further displaceable to a position which defines an opening for ejecting a roll formed in the roll-forming space, wherein said first and second sheet drive means are disposed one above the other and wherein the second or bottom sheet drive means forms its contact point which, in the horizontal direction, is disposed between the contact point of the first or top sheet drive means and the center of the roll-forming space.