An unwinder for web material includes: a first and second reel holder, a dynamic storage device, a junction device arranged between the first or second reel holder and the dynamic storage device and configured to join an end portion of web material running out on the first reel to an initial portion of web material of the second reel, an actuator configured to pull the web material. The dynamic storage device includes: a plurality of first return rollers, a carriage mounted on a guide and free to move along the guide approaching or moving away from the first return rollers, a plurality of second return rollers mounted idly on the carriage. The return rollers define a zigzag path for the web material. The dynamic storage device includes a plurality of motorized shafts and each first return roller is mounted by means of two rolling bearings on a respective motorized shaft.

A splice arrangement includes an unwinding arrangement for unwinding a finite first material web from a first material roll or a finite second material web from a second material roll, a braking arrangement for applying a braking force to the unwinding arrangement and/or the finite material web being unwound, a connection arrangement for connecting the finite material webs to form an endless material web, a storage trolley for the uninterrupted conveying of the endless material web, at least one material web tension-influencing device arranged before the storage trolley, and an actuation device, which is in signal connection with the at least one material web tension-influencing device for actuating the same.

The splicing device for splicing a trailing edge of a first web material to a leading edge of a second web material includes members defining a feed path of the web material. The device also includes a first cutting member and a second cutting member, cooperating with the first cutting member. One of the two cutting members is provided with a movement transverse to the feed path of the web material, to move the cutting member from an operating position, in which it is in front of the other cutting member, to an idle position, withdrawn with respect to the feed path of the web material.

Time required for initial operation and operation immediately after wound body replacement is shortened. A packaging device packages an object to be packaged using a wound body. An elongated sheet-shaped packaging material is wound into the wound body. The wound body includes a recording medium that stores information. The information recorded in the recording medium includes remaining amount information indicating a remaining amount of the packaging material in the wound body. The packaging device includes a drive unit that generates driving force in order to rotate the wound body, an information reader that reads the remaining amount information stored in the recording medium, and a controller that controls the packaging device. The controller sets a rotation speed of the wound body based on the remaining amount information read by the information reader.

Described is an apparatus for packaging tissue products and a relative packaging method.

The present invention relates to a machine for the production of a component for an aerosol generating article, the machine including: —a buffer station, the buffer station including: # fixed sheet guides; # movable sheet guides which are movable in a reciprocating manner in a direction towards the fixed sheet guides and in a direction away from the sheet fixed guides; # an actuator for moving the movable sheet guides, wherein the fixed and movable sheet guides together define a zig-zag trajectory for the sheet having a variable length for varying the total length of the sheet of material in the buffer station; # supports for the sheet, the supports being arranged so that, when the movable sheet guides are moved towards the fixed sheet guides, at least one of the movable sheets guides is interposed between two different supports of the plurality; # an air system; # wherein the each of the supports defines an outer surface, at least one of the outer surfaces having a first portion in which a sucking action is exerted by the air system to attract the sheet towards the outer surface and a second portion in which a blowing action is exerted by the air system to push the sheet away from the outer surface.

The splicing device for splicing a trailing edge of a first web material to a leading edge of a second web material includes members defining a feed path of the web material. The device also includes a first cutting member and a second cutting member, cooperating with the first cutting member. One of the two cutting members is provided with a movement transverse to the feed path of the web material, to move the cutting member from an operating position, in which it is in front of the other cutting member, to an idle position, withdrawn with respect to the feed path of the web material.

Described is an apparatus for packaging tissue products and a relative packaging method.

A device for splicing and continuously providing an outgoing film web includes a splicing unit for splicing a first or a second incoming film web to the outgoing film web, and a clamping unit and an intermediate film storage for the outgoing film web.

The splicing unit includes a first sealing jaw with a first holding device for the outgoing film web, and a first cutting device for severing the outgoing film web in the region of the first sealing jaw. The splicing unit includes a second sealing jaw with a second holding device alternately for the first or the second incoming film web, and a second cutting device for severing this incoming film web. The sealing jaws with their respective holding devices can be displaced relative to one another out of the region of action of their first and second cutting devices into their mutual region of action.

An unwinder for web material includes: a first and second reel holder, a dynamic storage device, a junction device arranged between the first or second reel holder and the dynamic storage device and configured to join an end portion of web material running out on the first reel to an initial portion of web material of the second reel, an actuator configured to pull the web material. The dynamic storage device includes: a plurality of first return rollers, a carriage mounted on a guide and free to move along the guide approaching or moving away from the first return rollers, a plurality of second return rollers mounted idly on the carriage. The return rollers define a zigzag path for the web material. The dynamic storage device includes a plurality of motorized shafts and each first return roller is mounted by means of two rolling bearings on a respective motorized shaft.