A pallet switcher includes: a supporting structure; at least two mobile frames, each for carrying a pallet, each mobile frame of the at least two mobile frames including a first pair of rollers and a second pair of rollers on lateral sides of the mobile frame; a conveyor system located on the supporting structure for allowing movement of the at least two mobile frames, the conveyor system being connected to a drive shaft; a set of guiding grooves forming a closed loop having separate rails, and a guiding path for each mobile frame, the set of guiding grooves having a first path and a second path, the grooves receiving the rollers of the mobile frames; and a cam switching system for the pairs of rollers in the guiding grooves, the cam switching system guiding the pairs of rollers so that the first pair of rollers follows the first path.

A pallet conveying module, including a support structure on which there is arranged a rolling travel track configured to displace the pallets, and a retaining system to stop the pallet on said track. The retaining system comprises a first non-motorized mechanically operated braking device having a retractable region that rotates with respect to an shaft with a stop projection provided to abut with support legs of the pallet to be stopped, such that in a standby position, the retractable region is on an inclined plane with respect to the horizontal plane, while in a stop position the stop projection is in contact against a leg of the pallet; and a second motor operated braking device, located prior to the first mechanically operated braking device, which has a cam system defined by first and second retractable stops located in different positions.

A pallet lifting device configured to lift a pallet mounted on and conveyed by a moving belt while the pallet is being conveyed, the pallet lifting device including: lifting and lowering actuators provided on both sides of the belt such that the belt is provided between the lifting and lowering actuators; a mounting member provided so as to be movable up and down by the lifting and lowering actuators, the mounting member being configured so as to be able to mount the pallet at a lowered position; and a fixing unit configured to clamp the pallet with the mounting member in a state in which the mounting member mounting the pallet is moved upward.

Some examples show a conveying device for conveying an individual mushroom, a system adapted to convey mushrooms which comprises a plurality of conveying devices for conveying individual mushrooms, a method for conveying a mushroom, and a use of a conveyor to convey mushrooms.