Abstract: A machine opening and closing element for processing raw material having a first element and a second element through which the processed raw material passes, wherein the first element is connected to a mechanism which is connected to a power shaft, said first mechanism being in charge of generating a motion of the first element towards the second element. In particular, the machine for opening and closing element has a coupling arranged in a perforation of a support, such that the coupling may rotate in the perforation.

Abstract: This invention relates to an element opening and closing machine for processing raw material having a first element and a second element through which the processed raw material passes, wherein the first element is connected to a mechanism which is connected to a power shaft, said first mechanism being in charge of generating a motion of the first element towards the second element. In particular, the element opening and closing machine has a coupling arranged in a perforation of a support, such that the coupling may rotate in said perforation. The first mechanism is connected to the coupling, i.e., the first mechanism may rotate so the first mechanism may mitigate failures in the presence of reaction loads that may be caused in the presence of foreign elements in the raw material passing through the first and second elements.

Abstract: The present invention refers to a conveyor belt comprising a drive roller with a constant section cylinder and conical tip teeth, a mesh type drive belt, wherein said holes coincide with the teeth of the drive roller and a sliding plate, the drive belt being supported on the sliding plate. Wherein coupling between the drive belt and the teeth allows reducing longitudinal and transversal strain of the mesh type drive belt.

Abstract: The present invention refers to a conveyor belt comprising a drive roller with a constant section cylinder and conical tip teeth, a mesh type drive belt, wherein said holes coincide with the teeth of the drive roller and a sliding plate, the drive belt being supported on the sliding plate. Wherein coupling between the drive belt and the teeth allows reducing longitudinal and transversal strain of the mesh type drive belt.