A paper tube making and cutting machine includes a fixed rod, a paper tape winding mechanism, an angle measurement unit, a length measurement unit, a cutter, and a drive mechanism. The paper tape winding mechanism wraps or winds at least one paper tape around the fixed rod to form a paper tube. The angle measurement unit measures an angle of the paper tape winding mechanism or the paper tape relative to the fixed rod. The length measurement unit measures a conveyed length of the paper tape. The drive mechanism determines and sets a moving speed of the cutter along the fixed rod according to the angle and the conveyed length, such that the moving speed of the cutter is corresponding to or close to a producing speed or generation rate of the paper tube formed on the fixed rod, in order to prevent the paper tube from pushing a side surface of the cutter or to prevent the cutter from pulling and stretching the paper tube to thereby improve durability of the cutter and the quality of a cut paper tube.

A cutting machine for the transversal cutting of paper material logs, including: a structure on which are moved the logs; a cutting unit including a blade; at least one sharpening unit with two grinding wheels; a positioning device for positioning the grinding wheels with respect to the blade. The positioning device includes: a primary carriage and two secondary carriages supported by the primary carriage; a sensor for detecting the radius of the blade and configured to stop the primary carriage when the grinding wheels are arranged with the respective axes at a given distance from the axis of the blade. In a second phase of positioning the grinding wheels, the secondary carriages are controlled so as to bring the abrasive side of the wheels into contact with the blade.

A cutting machine for the transversal cutting of paper material logs, including: a structure on which are moved the logs; a cutting unit including a blade; at least one sharpening unit with two grinding wheels; a positioning device for positioning the grinding wheels with respect to the blade. The positioning device includes: a primary carriage and two secondary carriages supported by the primary carriage; a sensor for detecting the radius of the blade and configured to stop the primary carriage when the grinding wheels are arranged with the respective axes at a given distance from the axis of the blade. In a second phase of positioning the grinding wheels, the secondary carriages are controlled so as to bring the abrasive side of the wheels into contact with the blade.

A log saw for cutting convolutely wound logs of web material is disclosed. The log saw includes a cutting blade operating in a cutting plane, a log saw clamp for the retention of a convolutely wound log of web material such that the convolutely wound log of web material extends in a log advancing path through to the cutting plane, and controls connected to the clamping device.

A log saw for cutting convolutely wound logs of web material is disclosed. The log saw includes a cutting blade operating in a cutting plane, a log saw clamp for the retention of a convolutely wound log of web material such that the convolutely wound log of web material extends in a log advancing path through to the cutting plane, and controls connected to the clamping device.

A method for disassembling a battery housing of a high-voltage battery system, in particular of a vehicle, in which housing parts of the battery housing are in material connection with each other along joining flanges, wherein for disassembling the battery housing a disassembly tool is inserted into a joining gap between the joining flanges to loosen the material connection.

Device for locking two adjacent sections (1, 2) of a roll of paper (3) placed on the sides of a cutting section plane (4) defined by the movement of a cutting blade (5) of a cutting-off machine (M), comprising a pair of clamping devices (6, 7) configured to be able to assume an unlocking configuration with a locking configuration of respective sections (1, 2) of the roll (3); at least a first actuator (8) which can be operated on command to pass said clamping devices from the unlocking configuration to the locking configuration of the respective sections (1, 2), and vice versa; at least a second actuator (10) connected to the clamping devices (6, 7) and configured to perform a movement of reciprocal distancing of the clamping devices in a locking configuration with respect to said cutting section plane (4); means of inhibition (11) of the reciprocal moving away of the clamping devices active during the cutting advancement of the blade (5) through the roll (3); and activation means (12) of the second actuator (10) of the clamping devices (6, 7) configured to activate the reciprocal removal of the clamping devices immediately after the end of the roll cutting phase (3) performed by the blade (5).

A bread slicer includes an controller configured to cause claws to reach into an end-face securing portion, which is elongated in the direction of a connecting axis, of a loaf introduced into a feed chute, cause the loaf to be transported into a receiving chute over a blade gap, and cause a slicing blade to travel into the blade gap multiple times automatically during the transportation in order to cut off one slice from the loaf each time, and the slicing blade then moving fully back out of the blade gap again in order to allow each cut-off slice to be transported onward into the receiving chute and to allow the rest of the unsliced loaf to be transported onward over the blade gap. The receiving chute is above the feed chute. The connecting axis between the feed and receiving chute is vertically inclined by at least 30°.

A bread slicer includes an controller configured to cause claws to reach into an end-face securing portion, which is elongated in the direction of a connecting axis, of a loaf introduced into a feed chute, cause the loaf to be transported into a receiving chute over a blade gap, and cause a slicing blade to travel into the blade gap multiple times automatically during the transportation in order to cut off one slice from the loaf each time, and the slicing blade then moving fully back out of the blade gap again in order to allow each cut-off slice to be transported onward into the receiving chute and to allow the rest of the unsliced loaf to be transported onward over the blade gap. The receiving chute is above the feed chute. The connecting axis between the feed and receiving chute is vertically inclined by at least 30°.

A paper roll cutting device comprises a rotating motorized arm (20), provided with a rotation axis (21) fixed in the space, and at least one cutting blade (30) to cut at least a paper stick (100) obtaining said paper rolls connected to the rotating motorized arm (20), wherein the rotation axis (31) of the cutting blade (30) is cyclically movable during the rotation of the motorized arm (20), the distance between the rotation axis (21) of the rotating arm (20) and the rotation axis (31) of the cutting blade (30) being progressively cyclically variable during the rotation of the motorized arm (20) with a minimum distance at the lower point of the rotation trajectory of the cutting blade (30).