There is described a forming assembly (10b) for forming a plurality of sealed packs (3) starting from a tube (2) of packaging material, comprising first conveying means (15b) movable along a first path (Q) comprising: a first operative branch (Q1), which has a main elongation direction parallel to an advancing direction (A) of the tube (2); and a first return branch (Q2) comprising an initial portion (35b) which is arranged immediately downstream of the operative branch (Q1) and extends transversally to the advancing direction (A); first conveying means (14b, 15b, 14b′) comprise one of a sealing element (22b) or a counter-sealing element (22a); and a first half-shell (21b), which is movable along the operative branch (Q1) between: a first rest position, in which it is detached from the tube (2) or the formed pack (3); and a first operative position, in which it grips the tube (2) or the formed pack (3); the first half-shell (21b) is arranged in the first operative position along a first portion (34b) of the first operative branch (Q1); the first half-shell (21b) is kept in the first operative position along an initial portion (35b), so as to grip and convey the pack (3) in a staggered position with respect to the advancing direction (A); and moves, from the first operative position to the rest position at an end (36b) of the initial portion (35b) opposite to the first portion (34b), so as to discharge the pack (3) in a staggered position with respect to the advancing direction (A).

An apparatus for quality assessment of a sealing section of a package for food products. The package includes at least a robustness layer and a plastic layer. The sealing section is formed by holding a first section and a second section of the package against each other while providing heat such that the plastic layer of the first and second section melt and the first and second section adhere to each other. The apparatus includes a sample holder arranged for fixating a sample including the sealing section of the package. At least part of the sample holder is transparent, a magnification device arranged on a first side of the sample holder, and an illumination device arranged on a second side of the sample holder. Light is provided to the magnification device through the sample holder The first and second side are opposite sides of the sample holder.

A packaging unit for producing sealed packages from a tube fed along a first direction and comprising one pair of jaws, which grip the tube along transverse sections, defining respective second directions crosswise to the first direction; sealing means, which seal transverse sections to form sealed packages; separating means for separating packages from the tube along transverse sections and comprising one knife movably supported by one jaw; driving means moving the knife with respect to the jaw along a plane crosswise to the first direction and between a resting position, in which a cutting edge of the knife is spaced from the tube and is aligned with the respective second direction defined by the transverse section to be cut, and an operating position, in which the knife has completely cut the tube at the transverse section; driving means move the cutting edge obliquely with respect to the second direction when said driving means move the knife from the resting position to the operating position; cutting edge contacts the transverse section along a cutting surface parallel to the second direction and increasing as the knife moves from the resting position to the operating position.

There is described a method for forming a tube (3) of a web (4, 4) of packaging material comprising the steps of advancing the web (4) of packaging material along a web advancement path (P), overlapping a first lateral edge (19) of the web (4, 4′) of packaging material with a second lateral edge (20) of the web (4, 4) of packaging material for obtaining a longitudinal seam portion of the tube (3) and fusing at least an internal outer surface (34) of the first lateral edge (19) and an external outer surface (37) of the second lateral edge (20) with one another for longitudinally sealing the seam portion of the tube (3). The step of fusing comprises at least the substeps of directly heating the external outer surface (37) of the second lateral edge (20) and heating by contact the internal outer surface (34) by establishing contact between the internal outer surface (34) and the directly heated external outer surface (37).

The present disclosure relates to an induction sealing system for heat sealing packaging material for producing sealed packages of pourable food products, said sealing system may include a sealing jaw and a counter-jaw. In some embodiments, the sealing jaw may include at least one inductor device having at least one active surface configured to contact said packaging material; at least one flux-concentrating insert; a supporting body including heat-conducting material, said supporting body housing, said at least one inductor device and said flux-concentrating insert; and an interactive surface configured to press against said packaging material. In some embodiments, the counter-jaw may include at least one pressure pad made of elastomeric material, said at least one pressure pad configured to provide a counter pressure to the sealing jaw, wherein said at least one pressure pad has an arched convex contact area with height in the direction towards the sealing jaw.

A tensioning device for a chain driven jaw system in a package filling machine is disclosed. The chain driven jaw system has a fixed cam and a chain as a follower. The tensioning device comprises a chain tensioning element shaped and angled so to receive the chain on an outer surface thereof configured to be directed away from a center of the chain driven jaw system, wherein the chain tensioning element comprises a pivot connection, and wherein the chain tensioning element is configured to be integrated with the fixed cam at the pivot connection such that the chain tensioning element abuts the fixed cam at the pivot connection and can move to tension the chain. A chain driven jaw system and a related method is also disclosed.

A system includes a first horn, a first ultrasonic transducer, a second horn, a second ultrasonic transducer, a memory, and a controller. The first horn includes a first part-interfacing surface. The second horn includes a second part-interfacing surface and is positioned relative to the first horn such that a part to be welded can be positioned between the first and second part-interface surfaces. The controller is configured to cause a first ultrasonic energy to be applied through the first horn via the first transducer to cause the first part-interfacing surface to vibrate, cause the first horn to move in a first direction at a first time, cause a second ultrasonic energy to be applied through the second horn via the second transducer to cause the second part-interfacing surface to vibrate, and cause the second horn to move in a second direction at the first time.

A molding apparatus that injection molds an opening device on a packaging material sheet includes first and second molding units to injection mold a wall portion of the opening device on the sheet; the first molding unit comprising first and second molding elements configured to cooperate in contact to delimit at least part of a mold cavity fillable with molten material for forming a pull-member of the opening device; the mold cavity being delimited at least by first and second surfaces defined by the first and second molding elements respectively; a third molding unit cooperable with the first and second molding elements to delimit the mold cavity, and defining a third surface, facing the first and second surfaces and delimiting, together with these latter, the mold cavity; the third surface is shaped to be equidistant from the first and second surfaces when the first and second molding elements cooperate.

A packaging material comprising a core layer, an outermost layer arranged to face the exterior of a packaging container made of the packaging material, and an innermost layer arranged to face the interior of the packaging container is provided. The outermost layer and the innermost layer are laminated to the core layer. The laminated packaging material further comprises a locally distributed heat sealable material portion arranged on the innermost layer.

An apparatus for quality assessment of a sealing section of a package for food products. The package comprises at least a robustness layer and a plastic layer. The sealing section is formed by holding a first section and a second section of the package against each other while providing heat such that the plastic layer of the first and second section melt and thereby provide for that the first and second section adhere to each other. The apparatus comprises a sample holder arranged for fixating a sample comprising the sealing section of the package, wherein at least part of the sample holder is transparent, a magnification device arranged on a first side of the sample holder, and an illumination device arranged on a second side of the sample holder, such that light is provided to the magnification device through the sample holder, wherein the first and second side are opposite sides of the sample holder.