Baler connectable to a tractor for providing round bales and method for producing round bales

A method for producing round bales in a baler connected to a tractor, comprising:

• moving, by feeding an actuating fluid to a closing chamber of a cylinder-piston actuator, a tailgate to a closed position, where the tailgate cooperates with a frame to form a chamber;
• forming a bale in the chamber, by rotating crops received in the chamber, wherein the chamber size remains fixed during the formation of the bale;
• generating an alert signal, to provide the user with information about an operation or status of the baler;
• binding the formed bale with a fastening element;
• moving the tailgate to an open position, to discharge the bound bale;
• and
• detecting a control signal, representative of a pressure inside the closing chamber of the cylinder-piston actuator, when the tailgate is in the closed position, wherein the alert signal is generated as a function of the control signal.

A baler connectable to a tractor for providing round bales, comprising:

• a frame supported on a wheel axle;
• a chamber for receiving crops and for housing a formed bale, the chamber comprising a fixed, predetermined size;
• a tailgate connected to the frame and movable between a closed position, for cooperating with the frame to delimit the chamber, and an open position, for discharging the formed bale;
• a conveying assembly, which delimits the chamber for imparting a rotating movement to the crops contained in the chamber, and has a first portion provided in the frame and a second portion provided in the tailgate;
• a cylinder-piston actuator, which includes a closing chamber and is coupled to the frame and to the tailgate to move the tailgate from the open position to the closed position, upon receiving an actuating fluid in the closing chamber;
• a binder that binds the formed bale with a fastening element;
• a control unit that generates an alert signal;
• and
• a pressure sensor that detects a control signal representative of a pressure inside the closing chamber of the cylinder-piston actuator, wherein the control unit generates the alert signal as a function of the control signal, wherein the hydraulic circuit includes at least a valve, wherein said at least a valve is connected between the first conduit and the second conduit, and allows a flow of the actuating fluid from the first conduit to the second conduit, when a first pressure in the first conduit exceeds a second pressure in the second conduit of a predetermined threshold value, and wherein either one of the following conditions is met:
• i) said at least a valve includes a setting valve, which is connected between the first conduit, upstream the operating valve, and the second conduit, and is configured to allow a flow of the actuating fluid from the first conduit to the second conduit, when a first pressure in the first conduit upstream the operating valve exceeds a second pressure in the second conduit of a predetermined first threshold value;
• ii) said at least a valve includes a safety valve, which is connected between the first conduit, downstream of the operating valve, and the second conduit, and allows a flow of the actuating fluid from the first conduit to the second conduit, when a first pressure in the first conduit downstream of the operating valve exceeds a second pressure in the second conduit of a predetermined second threshold value.

A baler connectable to a tractor for providing round bales, comprising:

• a frame supported on a wheel axle;
• a chamber for receiving crops and for housing a formed bale, the chamber comprising a fixed, predetermined size;
• a tailgate connected to the frame and movable between a closed position, for cooperating with the frame to delimit the chamber, and an open position, for discharging the formed bale;
• a conveying assembly, which delimits the chamber for imparting a rotating movement to the crops contained in the chamber, and has a first portion provided in the frame and a second portion provided in the tailgate;
• a cylinder-piston actuator, which includes a closing chamber and is coupled to the frame and to the tailgate to move the tailgate from the open position to the closed position, upon receiving an actuating fluid in the closing chamber;
• a binder that binds the formed bale with a fastening element;
• a control unit that generates an alert signal;
• and
• a pressure sensor that detects a control signal representative of a pressure inside the closing chamber of the cylinder-piston actuator, wherein the control unit generates the alert signal as a function of the control signal,
• wherein the control unit is to be operatively connected to a user interface to receive a user selection input via the user interface, set a reference pressure value based on the user selection, and compare the control signal to the reference pressure value, the control unit comprising a signal generator that generates the alert signal as a function of the reference pressure value being exceeded by the control signal,
• wherein the user interface of the baler is positionable onto the tractor, and the control unit displays, in real time at the user interface, graphical data representative of the control signal and/or of the reference pressure value.