Abstract: A device for shredding deep-frozen food products provided in block form comprises a tool coupled to one end of a rotatable shaft which rotates the tool about an axis of rotation and advances the tool along the axis of rotation in the direction towards the block, thereby scraping layers off the block. The tool can be uncoupled from and recoupled to the end of the shaft without using a tool. When the tool is coupled to the end of the shaft it axially abuts the shaft's end and is thereby held in a force-locking manner on the end of the shaft for the transmission of drive forces from the shaft to the tool. The device includes a tool detection device to determine whether a tool is arranged on the end of the shaft as intended so that operation can occur only when the tool is connected as intended.

Abstract: A device for shredding deep-frozen food products provided in block form comprises a tool which is rotated around an axis of rotation (X) and advanced towards the block, thereby scraping off layers from the block. The device comprises two drive motors for generating rotational and feed movements of the tool, which can be controlled separately, at least one being of variable-speed. The device also includes a gear arrangement coupled to the drive motors in such a way that only one of the drive motors rotates the tool and other drive motors together serve to feed the tool, in a way that at a certain rotational speed ratio of the two drive motors the tool is rotated without axial movement of the latter and, at other rotational speed ratios advancing or retracting movement of the tool along the axis of rotation (X) occurs.

Abstract: A device for shredding deep-frozen food products provided in block form comprises a tool coupled to one end of a rotatable shaft by means of which it is rotated about an axis of rotation and advanced along the axis of rotation in the direction towards the block, thereby scraping layers off the block. The tool can be uncoupled from and recoupled to the end of the shaft without using a tool. When the tool is coupled to the end of the shaft it axially abuts the shaft's end and is thereby held in a force-locking manner on the end of the shaft for the transmission of drive forces from the shaft to the tool. The device includes a tool detection device to determine whether a tool is arranged on the end of the shaft as intended so that operation can occur only when the tool is connected as intended.

Abstract: A device for shredding deep-frozen food products provided in block form comprises a tool which is rotated around an axis of rotation (X) and advanced towards the block, thereby scraping off layers from the block. The device comprises two drive motors for generating rotational and feed movements of the tool, which can be controlled separately, at least one being of variable-speed. The device also includes a gear arrangement coupled to the drive motors in such a way that only one of the drive motors rotates the tool and other drive motors together serve to feed the tool, in a way that at a certain rotational speed ratio of the two drive motors the tool is rotated without axial movement of the latter and, at other rotational speed ratios advancing or retracting movement of the tool along the axis of rotation (X) occurs.