A feeding unit for feeding a plastic film in packaging machines for wrapping paper rolls, including: a unit for unwinding the film from a reel; a cutting device adapted to cut the film transversely; a transfer device including, on the right and on the left side of the feeding unit, drive belts configured for engaging the upper and lower faces of the film; and a positioning device including, on the right and on the left side of the unit, a predetermined number of drive belts configured for engaging the upper and lower faces of the film. On each side of the feeding unit, the transfer device comprises two pairs of belts. On each side of the feeding unit, the positioning device comprises a third pair of belts. The three pairs of belts are actuated by independent actuators.

A roll sheet with a continuous sheet wound in a roll form is rotated in a forward direction to supply the sheet to a printing unit. A sensor whose output is changed in accordance with a distance between the sensor and the sheet is used. A rotation direction of the roll sheet is switched from an opposite direction to the forward direction on the basis of the output of the sensor during rotation of the roll sheet in the opposite direction.

A roll sheet with a continuous sheet wound in a roll form is rotated in a forward direction to supply the sheet to a printing unit. A sensor whose output is changed in accordance with a distance between the sensor and the sheet is used. A rotation direction of the roll sheet is switched from an opposite direction to the forward direction on the basis of the output of the sensor during rotation of the roll sheet in the opposite direction.

In a method for removing a wrapping, such as plastic film, from a roll of material an apparatus is used, which has a roll supporting unit, and a cutting means. The roll supporting unit is configured to rotate the roll supported thereon, and the cutting means is movable into cutting abutment against the envelope surface of the supported roll for removal of the wrapping during rotation of the roll.

In a method for removing a wrapping, such as plastic film, from a roll of material an apparatus is used, which has a roll supporting unit, and a cutting means. The roll supporting unit is configured to rotate the roll supported thereon, and the cutting means is movable into cutting abutment against the envelope surface of the supported roll for removal of the wrapping during rotation of the roll.

A transport device unwinds a medium from a roll body to which a shaft member is mounted and transports the medium. The transport device includes an accommodation portion configured to accommodate the roll body, a main body portion to which the accommodation portion is mounted, and a roller pair configured to nip the medium. The accommodation portion and the main body portion are relatively movable. The main body portion includes a rack configured to engage with a gear of the shaft member. The rack is engaged with the gear when the accommodation portion moves relative to the main body portion to be pulled out of the main body portion.

A roll sheet with a continuous sheet wound in a roll form is rotated in a forward direction to supply the sheet to a printing unit. A sensor whose output is changed in accordance with a distance between the sensor and the sheet is used. A rotation direction of the roll sheet is switched from an opposite direction to the forward direction on the basis of the output of the sensor during rotation of the roll sheet in the opposite direction.

A roll sheet with a continuous sheet wound in a roll form is rotated in a forward direction to supply the sheet to a printing unit. A sensor whose output is changed in accordance with a distance between the sensor and the sheet is used. A rotation direction of the roll sheet is switched from an opposite direction to the forward direction on the basis of the output of the sensor during rotation of the roll sheet in the opposite direction.

A dispenser is provided which can dispense a variety of kitchen products that comes on rolls in the main part of the body, and can dispense bags and other items in compartments the bottom of the dispenser; the dispenser contains a housing, which can be a variety of shapes, made up of housing panels and a front door, the housing of the dispenser contains at least two longitudinal spring compression rollers, and two circular pivot motion disks which the longitudinal springs are attached, the housing can also include a horizontal support bar connected to the circular pivot motion discs, the dispenser also contains two knob spinner disks which are each located outside the housing, the housing can be mounted under a cabinet, or can stand on a flat horizontal surface, or a flat vertical surface, a lower housing contains compartments for additional storage and the bottom lower housing panel has openings therein which can dispense other kitchen products which are plastic bags of varying sizes, this lower housing can have a hinge door that comes down, or a sliding door that slides in slots present in the lower housing.

A dispenser is provided which can dispense a variety of kitchen products that comes on rolls in the main part of the body, and can dispense bags and other items in compartments the bottom of the dispenser; the dispenser contains a housing, which can be a variety of shapes, made up of housing panels and a front door, the housing of the dispenser contains at least two longitudinal spring compression rollers, and two circular pivot motion disks which the longitudinal springs are attached, the housing can also include a horizontal support bar connected to the circular pivot motion discs, the dispenser also contains two knob spinner disks which are each located outside the housing, the housing can be mounted under a cabinet, or can stand on a flat horizontal surface, or a flat vertical surface, a lower housing contains compartments for additional storage and the bottom lower housing panel has openings therein which can dispense other kitchen products which are plastic bags of varying sizes, this lower housing can have a hinge door that comes down, or a sliding door that slides in slots present in the lower housing.