A ribbon supply includes a supply spool and a ribbon material wound onto the supply spool. A tack down bond prevents unwinding of the ribbon material from the supply spool. A leader film extends from the tack down bond, with the leader film having a length that is sufficient to allow installation of the ribbon supply and connection of the leader film to a take-up spool without detaching the tack down bond.

An adhesive bonding system joins flat webs when changing rolls of such webs. The adhesive bonding system comprises two adhesive tape boundary edges, and further comprises a top carrier layer and a bottom carrier layer, a flat connecting element that connects the two carrier layers to one another and is suitable for opening the connection under the conditions of a static or flying roll change. At least one of the boundary edges of the connecting element does not extend in a straight line, and a straight-line emphasis line is defined in relation to this boundary edge, the emphasis line of this boundary edge extends along a preferential direction, and this boundary edge has a multiplicity of regions lying on one side of its emphasis line and also a multiplicity of regions lying on the other side of its emphasis line.

Apparatus for splicing expiring and replenishing webs of a web material includes first and second spaced platens having respective facing inner surfaces defining a passageway for transit of the expiring web, where the platens are adapted for displacement toward and away from one another in a reciprocating manner. The first platen is adapted to engage an end of the replenishing web, while the second platen is adapted to engage and position the moving expiring web. Moving the platens together with their respective inner surfaces in close proximity to one another causes a cutting die on the first platen to sever the expiring web forming outfeeding and infeeding ends of the expiring web, and to attach the expiring web's outfeeding end to the replenishing web. Attached to the second platen in facing relation to the first platen and engaging the expiring web is an ironing pad to ensure firm contact and adhesion of expiring web to the replenishing web. During web splicing, the cutting die is transferred from the first platen to the second platen to free the replenishing web from the first platen, with the cutting die engaging and collecting or holding the expiring web's infeeding end.

The invention relates to a method for automatically splicing a first article, unwound from a first reel, to a second article wound around a second reel, the articles being flexible and in the form of webs or strips. According to the invention, the method comprises steps consisting in: positioning an adhesive tape on an end that is to be spliced belonging to the second article; automatically moving a portion of the first article to a cutting plane situated facing the end that is to be spliced belonging to the second article; holding the portion of the first article downstream of the cutting plane with respect to the first reel; cutting the first article transversely; automatically moving the end that is to be spliced belonging to the second article as far as the cutting plane; and pressing a cut end of the first article at the cutting plane against the end that is to be spliced belonging to the second article in order to stick them together using the adhesive tape.

Adhesive tape for flying splices of flat web materials, in particular flat web materials with nonpolar surfaces, said adhesive tape at least comprising an upper self-adhesive compound layer, an inner adhesive tape area adapted as a flat predetermined breaking point, and a lower self-adhesive compound on the underside of the inner adhesive tape area, wherein a natural rubber adhesive compound is used as the self-adhesive compound for at least the upper self-adhesive compound layer, as well as methods for flying splices of flat web material wound onto rolls, in particular with nonpolar surfaces, using a corresponding adhesive tape.

A sheet delivery system includes: a joining unit which joins, to an intermediate section of a sheet being delivered from a delivery-side original material roll, an end section of a sheet W of a standby-side original material roll; and an operation robot which retrieves the end section of the sheet from the standby-side original material roll and which conveys the end section of the sheet to the joining unit. The sheet delivery system sets, in advance, a sheet retrieval position at which the sheet is retrieved from each of the original material rolls, for each of the original material rolls. The operation robot is configured to convey the end section of the sheet from each of the sheet retrieval positions to the joining unit.

A system and method for automatic splicing of rolls of sleeve material used in various packaging markets is provided. The system will automatically splice the prepared end of a new roll onto the expiring end of the prior roll. The system performs an automatic cut and splice operation resulting in a butt splice of the two rolls with tape applied to both sides of the splice joint. The splice can be done in-registration to provide a consistent product repeat length between expiring and new rolls.

An unwinder of reels of web material wound around winding spindles (A), includes a unwinding station (13) with at least one unwinding member (23) to rotate a reel (B) that is located in the unwinding station and feed the web material toward a delivery path (E). Lifting members (51, 53) are provided to lift a spindle of a first exhausted reel from the unwinding station (13), in a removal position (PR). An insertion member (7; 33) is further provided to insert a second reel into the unwinding station (13). A pressing member (61) is arranged to press the web material coming from the first reel in removal position (PR) against the second reel in the unwinding station (13).

An embodiment of the present disclosure provides a pouch supply apparatus for supplying a sheet-type pouch. The pouch supply apparatus includes a suction unit configured to suction an end of the pouch and unwind a portion of the pouch from a core so that a pouch roll, in which the pouch is wound around the core, is moved in an unwound state and a conveyance unit configured to convey the pouch roll at least during a state in which the pouch roll is unwound by the suction unit.

As a result, it is possible to relieve an operator's workload by automatically replacing pouch rolls. Also, pouch rolls are automatically replaced, and thus, it is possible to minimize pouch supply interruption and maximize process efficiency.

A roll changing apparatus, a winding device, and a gluing device are disclosed in the present application. The roll changing apparatus includes an unwinding assembly including a first unwinding mechanism and a second unwinding mechanism; and a roll changing assembly including a first adsorption mechanism, a second adsorption mechanism, and a cutting mechanism. The cutting mechanism is used to cut off a first material strip between the second adsorption mechanism and a first adsorption area or a second material strip between the second adsorption mechanism and a second adsorption area.