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.

An apparatus for the manual/automatic production of a tube-like packaging material can include a guiding chute with an opening for ejecting the packaging material from a roll arranged in the ejection position, wherein the guiding chute has an inner contour narrowing towards an opening in an ejection direction, a primary seating for at least partly circumferentially gripping the first roll and for holding the first roll in the ejection position, and at least one secondary seating for receiving of at least a second roll for reloading the apparatus, wherein the secondary seating is movable with a second roll between a passive position in which the second roll is outside an ejection position and an active position in which the second roll is arranged in the ejection position or is displaceable from the secondary seating into the primary seating under (e.g. exclusively under) the impact of gravity.

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 film roll replacement device supplies a film roll to a bag making and packaging machine, which has a film-roll-supporting part to support the film roll and which manufactures bags containing articles using the film. The film roll replacement device includes a holding section, the driving unit, and a controller. The holding section is located adjacent to the bag making and packaging machine, and the holding section holds the film roll supplied to the bag making and packaging machine. The driving unit moves the holding section. The controller controls an action of the driving unit to move the holding section to move in a first direction toward the supporting part of the bag making and packaging machine and to transfer the film roll held by the holding section to the supporting part.

An apparatus for the manual/automatic production of a tube-like packaging material can include a guiding chute with an opening for ejecting the packaging material from a roll arranged in the ejection position, wherein the guiding chute has an inner contour narrowing towards an opening in an ejection direction, a primary seating for at least partly circumferentially gripping the first roll and for holding the first roll in the ejection position, and at least one secondary seating for receiving of at least a second roll for reloading the apparatus, wherein the secondary seating is movable with a second roll between a passive position in which the second roll is outside an ejection position and an active position in which the second roll is arranged in the ejection position or is displaceable from the secondary seating into the primary seating under (e.g. exclusively under) the impact of gravity.

A film-roll supply device improves replacement of a film roll in a bag-making and packaging machine. A film roll replacement device supplies a first film roll to a bag-making and packaging machine. The film roll replacement device is provided with a holding section and a first driving unit. The holding section receives the first film roll to be supplied to the bag-making and packaging machine. The first driving unit changes an orientation of the holding section between a first orientation used when receiving the first film roll and a second orientation used when supplying the first film roll to the bag-making and packaging machine.

An apparatus and method for loading material may utilize an unwind apparatus and a loading apparatus. The unwind apparatus may include a frame and a mandrel. The mandrel may be adapted to receive a spool including a core and a strand of material. The mandrel may be associated with a mandrel support member, which provides support. The loading apparatus includes a base member and a loading shaft having a proximal end portion and a distal end portion. The proximal end portion may be connected with the base member and the distal end portion may be configured to engage the mandrel. The loading shaft may support a replacement spool including a core and a strand of material wound around the core. When the loading shaft is engaged with the mandrel, the core of the replacement spool is movable from the loading shaft to the mandrel.

Disclosed in the present application are an automatic roll replacing device, and winding equipment. The automatic roll replacing device includes: a mounting frame; an unwinding mechanism, including an unwinding shaft rotatably connected to the mounting frame around its own axis; a spare material mechanism, including a spare material shaft having a contact end and a material pushing member providing an axial pushing force for a spare material roll on the spare material shaft, the spare material shaft being rotatably connected to the mounting frame around the rotation axis, and the material pushing member being controlled to push the spare material roll on the spare material shaft to transfer to the unwinding shaft; and a strip connection mechanism, provided on the mounting frame, and used for cutting off a work material strip unwound from the unwinding shaft and connecting the cut-off work material strip to the spare material roll.

A film roll replacement device supplies a film roll to a bag making and packaging machine. The film roll replacement device includes a holding section, a driving unit, and a controller. The holding section is at least temporarily located adjacent to a supporting shaft to support the film roll in the bag making and packaging machine, and the holding section holds a first film roll supplied to the bag making and packaging machine. The driving unit moves the holding section in an up-down direction. The controller controls an action of the driving unit to move the holding section to a position where a height position of a center of the first film roll held by the holding section is aligned with the height of a center of the supporting shaft of the bag making and packaging machine.

A film roll replacement device supplies a film roll to a bag making and packaging machine, which has a film-roll-supporting part to support the film roll and which manufactures bags containing articles using the film. The film roll replacement device includes a holding section, the driving unit, and a controller. The holding section is located adjacent to the bag making and packaging machine, and the holding section holds the film roll supplied to the bag making and packaging machine. The driving unit moves the holding section. The controller controls an action of the driving unit to move the holding section to move in a first direction toward the supporting part of the bag making and packaging machine and to transfer the film roll held by the holding section to the supporting part.