Roller press with displaceable head elements

A roller press having two rollers (1,2) which are rotatably supported in a frame which has a lower frame portion (3), an upper frame portion (4) formed by two upper flanges (12, 13), and, at the two ends of the frame, head pieces (5 to 8) for connecting the upper frame portion to the lower frame portion, the one roller (2) being supported in a non-displaceable manner as a fixed roller and the other roller (1) being displaceable as a loose roller in a direction towards the fixed roller by means of a pressure system and pressure forces occurring during the operation of the roller press being absorbed by the upper and lower frame portions via the head pieces, and at least one head piece (5, 6) being removable from its operating position, while said at least one head piece (5, 6) continues to support the upper flanges (12, 13) of the upper frame portion (4), in order to mount or dismount the rollers,

• wherein the removable head piece (5, 6) is outwardly displaceable transversely to the upper flanges (12, 13) of the upper frame portion (4) and at the end of the frame that is adjacent to the fixed roller (2), the two head pieces (5, 6) are each outwardly displaceable transversely to the upper flanges (12, 13) of the upper frame portion (4), and in order to reduce the friction occurring between bearing shoes (15 to 18) of the rollers and the frame during displacement of the rollers (1, 2) for the purpose of mounting or dismounting, the upper flanges (12, 13) can be lifted by a displacement of the head pieces (5, 6) outwards.