A hazelnut processing plant provides separation of unshelled hazelnut as shell and as decorticated hazelnut by means of breaking the shells thereof. The hazelnut processing plant includes at least one calibration sieve where the unshelled hazelnut is transferred in order to be categorized in accordance with the dimensions thereof, at least one calibration line which has at least one each calibration silos for each category of the unshelled hazelnut separated according to dimensions in said calibration sieve, at least one stone, where the unshelled hazelnut is transferred in order to be separated from the shell thereof, at the continuation of said calibration line, at least one charger sieve which can separate the hazelnut broken at said stone by sieving the dust of said hazelnut, at least one breaking line, which has at least one ventilator in order to provide separation of decorticated hazelnuts, shells and creased hazelnuts.

A hazelnut processing plant provides separation of unshelled hazelnut as shell and as decorticated hazelnut by means of breaking the shells thereof. The hazelnut processing plant includes at least one calibration sieve where the unshelled hazelnut is transferred in order to be categorized in accordance with the dimensions thereof, at least one calibration line which has at least one each calibration silos for each category of the unshelled hazelnut separated according to dimensions in said calibration sieve, at least one stone, where the unshelled hazelnut is transferred in order to be separated from the shell thereof, at the continuation of said calibration line, at least one charger sieve which can separate the hazelnut broken at said stone by sieving the dust of said hazelnut, at least one breaking line, which has at least one ventilator in order to provide separation of decorticated hazelnuts, shells and creased hazelnuts.

A nut sizer includes a nut sizer frame and a rotatable nut sizer cage mounted therein. A motor is attached to the nut sizer frame at an intake end thereof. The motor will drive a drive sprocket which will in turn drive a reel sprocket that is connected to the rotatable sizer cage. A chain engages the drive sprocket and the reel sprocket. The sizer cage may be lifted from the nut sizer frame by removing the chain. The nut sizer cage is a sectioned sizer cage and includes a first sizer section and a second sizer section detachably connected thereto.

A nut sizer includes a nut sizer frame and a rotatable nut sizer cage mounted therein. A motor is attached to the nut sizer frame at an intake end thereof. The motor will drive a drive sprocket which will in turn drive a reel sprocket that is connected to the rotatable sizer cage. A chain engages the drive sprocket and the reel sprocket. The sizer cage may be lifted from the nut sizer frame by removing the chain. The nut sizer cage is a sectioned sizer cage and includes a first sizer section and a second sizer section detachably connected thereto.

A cracking and shelling mechanism for nuts having a plurality of first elongated parallel blocks with a first end fastened to alternate movement means in both senses along the longitudinal axis thereof and a plurality of second elongated parallel blocks parallel to the first blocks and arranged in an alternate and adjacent way to the first blocks, wherein the movement means of each first block includes a seesaw element which is connected to at least one pair of blocks of a first and second adjacent blocks, such that the second blocks exhibit an alternate movement in both senses along the longitudinal axis thereof, and in opposite sense to the movement of said first adjacent block, wherein said seesaw element includes a fixed central rotation shaft, a first rod connected to the central shaft and to the first block and a second rod, diametrically opposed to the first rod, connected to the central shaft, and to the second block.

A cracking and shelling mechanism for nuts having a plurality of first elongated parallel blocks with a first end fastened to alternate movement means in both senses along the longitudinal axis thereof and a plurality of second elongated parallel blocks parallel to the first blocks and arranged in an alternate and adjacent way to the first blocks, wherein the movement means of each first block includes a seesaw element which is connected to at least one pair of blocks of a first and second adjacent blocks, such that the second blocks exhibit an alternate movement in both senses along the longitudinal axis thereof, and in opposite sense to the movement of said first adjacent block, wherein said seesaw element includes a fixed central rotation shaft, a first rod connected to the central shaft and to the first block and a second rod, diametrically opposed to the first rod, connected to the central shaft, and to the second block.

A combined machine for harvesting and shelling almonds is described, comprising a shelling machine combined with a harvesting machine, wherein the shelling machine is connected to the harvesting machine so that the outlet of the almonds harvested by the harvesting machine coincides with the loading area of the shelling machine; such combined machine allows directly performing in a field, and upon harvesting, the shelling of the almonds; the shelling machine is arranged transversally to the advancement direction of the harvesting machine and is connected to the top part of the harvesting machine, so that the end from which the shelled products go out bestrides the adjacent row to the row treated by the harvesting machine and the shelled almonds are poured into a trailer towed in an adjacent inter-row.

A dehulling system for soft-shelled nuts includes at least two dehulling stations arranged in series, where each station is made up of at least one dehulling machine in a first dehulling stage and a screening machine in a second screening stage, both being a first and a second consecutive stages. The screening machine is a densimetric separator located lower than the dehulling machine and has an upper product inlet towards the interior thereof, which comprises a drum arranged according to an inclined plane, a first outlet for the dehulled grain in the upper part of the drum and a second outlet for the rest of materials other than the dehulled grain in the lower part of the drum.

A dehulling system for soft-shelled nuts includes at least two dehulling stations arranged in series, where each station is made up of at least one dehulling machine in a first dehulling stage and a screening machine in a second screening stage, both being a first and a second consecutive stages. The screening machine is a densimetric separator located lower than the dehulling machine and has an upper product inlet towards the interior thereof, which comprises a drum arranged according to an inclined plane, a first outlet for the dehulled grain in the upper part of the drum and a second outlet for the rest of materials other than the dehulled grain in the lower part of the drum.

The present invention relates to the technical field of machines used for peeling nuts, such as almonds and the like which have been previously blanched, the machines having an accessible frame inside which there is a series of rollers arranged in pairs with nuts passing between them and each of them being associated with a rotating shaft, respectively, with movements at different speeds.