Controlling the size of a roll core formed in a crop material roll forming machine

Abstract From the Canadian patent

A roll forming machine picks up crop material and forms twins wraps, and discharges rolls or large round bales thereof as the machine is continuously moving across the field. The machine has a mobile frame supporting a pickup and a floor, the latter supporting a lower conveyor. A front upper apron is supported on the frame above a front portion of the lower conveyor and floor and defines a front roll forming region therewith. A rear upper apron is supported on the frame above a rear portion d the lower conveyor and floor and defines a front roll forming region therewith. Formation of a crop material roll is initiated In the front region and completed in the rear region after the roll has …