An automatic machine comprising: - a load-bearing frame comprising a base, at least one vertical side wall, a horizontal wall facing the base, a vertical front wall, defining a machine front, from which protrudes at least one motor-driven supporting shaft which supports a respective reel of wound material; - a plurality of operating stations positioned on the front wall through which a processing path extends along which said material proceeds while it is unwound from the reel; - a first storage unit configured to house replacement reels and positioned directly associated with the load-bearing frame of the machine and located close to the shaft supporting the reel; - a device for picking up and releasing replacement reels configured for picking up one of the replacement reels from the first storage unit and positioning it on the supporting shaft, said pick-up and release device being positioned directly associated with the load-bearing frame and located close to the first storage unit; and - a control unit configured for activating the device for picking up and releasing reels in response to a run out signal of the reel present on the supporting shaft, the automatic machine being characterized in that it further comprises - a reel pressing element configured to stabilise the replacement reel on the supporting shaft; the reel pressing element being carried by a supporting element associated outside the frame of the machine, close to the first storage unit and the pick-up and release device; the supporting element being equipped with means for quick coupling and detachment of the reel pressing element in such a way as to allow it to be picked up and repositioned by the pick-up and release device. - a load-bearing frame comprising a base, at least one vertical side wall, a horizontal wall facing the base, a vertical front wall, defining a machine front, from which protrudes at least one motor-driven supporting shaft which supports a respective reel of wound material; - a plurality of operating stations positioned on the front wall through which a processing path extends along which said material proceeds while it is unwound from the reel; - a first storage unit configured to house replacement reels and positioned directly associated with the load-bearing frame of the machine and located close to the shaft supporting the reel; - a device for picking up and releasing replacement reels configured for picking up one of the replacement reels from the first storage unit and positioning it on the supporting shaft, said pick-up and release device being positioned directly associated with the load-bearing frame and located close to the first storage unit; and - a control unit configured for activating the device for picking up and releasing reels in response to a run out signal of the reel present on the supporting shaft, the automatic machine being characterized in that it further comprises - a reel pressing element configured to stabilise the replacement reel on the supporting shaft; the reel pressing element being carried by a supporting element associated outside the frame of the machine, close to the first storage unit and the pick-up and release device; the supporting element being equipped with means for quick coupling and detachment of the reel pressing element in such a way as to allow it to be picked up and repositioned by the pick-up and release device.