Disclosed is a feedstock device (1) to deliver film (2) to a bundle-wrapping machine and including, on the one hand, at least one reel (3) to receive a roll (4) of the film (2) to be delivered, and, on the other hand, a joining unit (5) to attach the next film (2) to the film (2) that is currently being fed. This device includes a support (6) on which the at least one reel (3) is mounted, with the support (6) being mobile in relation to the joining unit (5) to bring the delivered film (2) to the latter. The invention also has as its object a machine and a corresponding method.

A detector includes a first member that makes contact with an upper surface of a paper sheet stored in a sheet feeding cassette, and a second member that supports the first member such that it is capable changing postures, while also movably supporting the first member in an up-and-down direction to coincide with the upper surface of a paper sheet stored in the sheet feeding cassette. The first member has a guide portion that makes contact with the sheet feeding cassette and/or a paper sheet stored in the sheet feeding cassette. The first member changes postures with respect to the second member as a result of the guide portion making contact with the sheet feeding cassette and/or a paper sheet stored in the sheet feeding cassette.

A web material dispenser includes a housing and a pivotable roll support assembly provided therein. A first mandrel is provided at a first attachment location of the roll support assembly to support a first roll of web material. A second mandrel is provided at a second location of the roll support assembly to support a second roll of web material. The web material dispenser permits one-handed operation to replace the rolls of web material and to change positions of the mandrels within the dispenser. The roll support assembly may have a linkage arm and/or a roll support arm. Positions of the first and second mandrels relative to the dispenser's opening can be switched by pivoting the linkage arm relative to the housing and by pivoting the roll support arm relative to the linkage arm. A method for switching positions of rolls in the web material dispenser is also provided.

The invention relates to a method for feeding and splicing sheets of material wound in bobbins (20, 21, 22, 23), the method including: providing a rotating wheel (10) having at least a first, a second, a third and a fourth bobbin holder (103, 104, 105, 106) defining a first, a second, a third and a fourth station; unwinding a first sheet of material (201) wound in a first bobbin (20) provided in the first station; detecting the amount of first sheet of material remaining in the first bobbin (20) in the first station; depending on the amount of first sheet of material (201), splicing the first sheet of material (201) unwound from the first bobbin with a second sheet of material (211) unwound from a second bobbin (21) present in the second station; preparing for splicing a third sheet of material in a third bobbin (22) present in the third station including: reading information about the third bobbin (22) contained in a sticker, label or tag; removing the sticker, label or tag from the third bobbin (22); and rotating the wheel (10) so that the substantially empty first bobbin (20) is moved to the fourth station and the third bobbin is moved to the second station. Further, the invention relates to an apparatus for feeding and splicing materials wound in bobbins (20, 21, 22, 23) for conducting the above method.

A bushing for a web material roll including a body sized to be fitted into the web material roll; the bushing further including a wall extending across the central cavity of the web material roll when the bushing is in the central cavity of the web material roll and defining an opening for receiving a roll support therethrough, the opening being bordered by a roll support contacting surface, the bushing having one or more bearing surfaces for contacting the roll support and supporting the web material roll, the one or more bearing surfaces including at least the roll support contacting surface bordering the opening. A web material roll, a web material roll retention assembly and a method for placing a web material roll in a web material roll dispenser are also provided.

A web material dispenser includes a housing and a pivotable roll support assembly provided therein. A first mandrel is provided at a first attachment location of the roll support assembly to support a first roll of web material. A second mandrel is provided at a second location of the roll support assembly to support a second roll of web material. The web material dispenser permits one-handed operation to replace the rolls of web material and to change positions of the mandrels within the dispenser. The roll support assembly may have a linkage arm and/or a roll support arm. Positions of the first and second mandrels relative to the dispenser's opening can be switched by pivoting the linkage arm relative to the housing and by pivoting the roll support arm relative to the linkage arm. A method for switching positions of rolls in the web material dispenser is also provided.

A web material dispenser includes a housing and a pivotable roll support assembly provided therein. A first mandrel is provided at a first attachment location of the roll support assembly to support a first roll of web material. A second mandrel is provided at a second location of the roll support assembly to support a second roll of web material. The web material dispenser permits one-handed operation to replace the rolls of web material and to change positions of the mandrels within the dispenser. The roll support assembly may have a linkage arm and/or a roll support arm. Positions of the first and second mandrels relative to the dispenser's opening can be switched by pivoting the linkage arm relative to the housing and by pivoting the roll support arm relative to the linkage arm. A method for switching positions of rolls in the web material dispenser is also provided.

A media roll holder assembly for a roll is detachably supported in a printing system. A rotational drive includes a roll engaging element configured for fittingly engaging and driving a drive engaging element of a roller, for example an Oldham coupling. A first guide surface is configured to support and direct the roller in a loading direction. A second guide surface at least partially extends at an angle with respect to the first guide surface, such that movement of the roller over the first guide surface brings the drive engaging element in contact with the second guide surface. The second guide surface directs the drive engaging element into a predetermined orientation, which orientation aligns the drive engaging element with the roll engaging element in a loading orientation, such that further movement of the roller in the loading direction inserts the drive engaging element into the roll engaging element.

A method for providing rolls of material for use in sheet form, particularly aluminum for food uses, comprising a step of rewinding the material for use in sheet form in order to form a roll; the rewinding step is provided by winding the material for use in sheet form directly on a rewinding shaft, with the material for use in sheet form in contact with a cylindrical outer lateral surface of the rewinding shaft, which is actuated with a rotary motion about its longitudinal axis, so as to obtain a coreless roll.

A pivot mechanism for a printer is provided, the pivot mechanism comprising a pivot base and two oppositely disposed side walls extending perpendicular to the pivot base. An arched slot may be provided in each side wall. Each slot may have at least two notches, each notch defining different positions of the pivot mechanism. Two lever arms may be provided, each of the two lever arms comprising a first end and a second end, with a connecting rod connecting the first ends of the lever arms together. A locking pin may be disposed on the second end of each of the lever arms. Each of the locking pins may extend into a corresponding one of the slots and engage with a corresponding notch. A pivot rod extends through the lever arms and into or through the side walls. The printer housing is adapted to pivot on the pivot rod.