Abstract: The meat duct (6) is equipped with a gate (17) to cut the meat supply at intervals and with a plate (14) to regulate the passage of the meat (7). The sheet material paper rolls (9, 10) to wrap the hamburger have respective inertial brakes (26) and sensors (25) which, when the paper runs out, touch the core (23) of the roll and stop the machine. One of the paper strips bears a series of marks (20) which, as they pass through the cell (21), cause the pressing die mechanism (11) to operate. In addition, there is a rod (40) which separates the chopped meat end contiguous to the hamburger, and another rod (41) which, when it ascends due to an obstruction, touches a microswitch and stops the machine. The paper scraps left over are driven by a pneumatic system (35) to a container (37).