An ultrasonic systems and methods for sealing complex interfaces or for metal forming. Complex interfaces, such as a Gable top, have multiple and a variety of layers across the interface, or an oval or round spout having a complex geometry. An example system includes two ultrasonic horns arranged opposite a gap between which the interface is provided. The frequency and phase of the ultrasonic energy are synchronized as the energy is applied simultaneously while the interface is pressed between a jaw and the energy is applied to both sides of the interface. Another example system includes two ultrasonic transducers synchronized in frequency and phase and used to vibrate a horn mechanically to facilitate a sealing or welding interface or to assist in a metal-forming process.

An ultrasonic welding system. The system includes an ultrasonic transducer assembly having a horn and a first transducer and a second transducer arranged to impart ultrasonic energy into the horn. The horn has a first part-interfacing surface and a second part-interfacing surface opposite the first part-interfacing surface. An actuator assembly is operatively coupled to the ultrasonic transducer assembly and configured to cause rotation of the horn. A controller is configured to: cause the actuator assembly to rotate the horn so that the first part-interfacing surface applies the ultrasonic energy to a first part along an entire length of the first part-interface surface while a first ultrasonic energy is applied through the horn via the first transducer to cause the first part-interfacing surface to vibrate back and forth along its entire length as the first ultrasonic energy is applied by the first transducer to the horn.

A flexible package having a closure device and a lap or fin seal is provided that reduces or eliminates an air gap present at the fin or lap seal portion of packages. The package can include a film with a closure applied to the film. The flexible package can include a film having a closure device applied to the film transverse to the first and second side edges of the film, with the first side edge portion extending into the fin seal such that at least a portion of the first side edge portion eliminates an air gap between the fin or lap seal and at least one of the first and second side edge portions.

The present disclosure is directed to dunnage bags formed using polyethylene terephthalate (PET) and processes for manufacturing these PET dunnage bags. Generally, the PET dunnage bags of the present disclosure include a PET outer bag, an inner bladder enclosed within the PET outer bag, and a valve assembly that enables air to be introduced into (or escape out of) the inner bladder to inflate (or deflate) the inner bladder, thereby inflating (or deflating) the PET dunnage bag.

A rotary device for welding a continuous web includes a rotary element, support elements for supporting the web, supported by the rotary element, and a plurality of welding units for welding the web. Each welding unit passes from a non-operating position to an operating position and vice versa, and includes a first movement device for commanding a relative rotation of an anvil element relative to a welding tip and a second movement device for moving the anvil element relative to the welding tip such that a contact surface of the anvil element and a contact surface of the welding tip make contact with a portion of the web in a zone between them, and vice versa. First and second drive mechanisms drive the first and second movement devices. The first and second drive mechanisms are configured to vary a positioning of the welding tip relative to the axis.

Provided is a bonding method capable of bonding with an inexpensive structure while avoiding an increase in the overall size of the device. The bonding method comprises: an arrangement step for locating a cylindrical body between two sheet-shaped members; a cylindrical body bonding step for applying an ultrasonic wave from the outer surface of a first sheet-shaped member through a horn part and applying heat from the outer surface of a second sheet-shaped member through an anvil part, in a state in which the cylindrical body is arranged between the two sheet-shaped members; and a shoulder part bonding step for directly bonding, through a pair of heating parts, the two sheet-shaped members to each other while the two sheet-shaped members are interposed between the pair of heating parts.

A bag (100) for packaging fruit and vegetable products (2) having a casing (103) for housing the products to be packaged and at least one first band (104) and one second band (105), each arranged on the outer face of the casing so as to seal the casing, the first band (104) being joined to the casing only at its ends (104a, 104b) forming a handle (106) and the second band (105) joined along the length thereof to the associated face of the casing, forming a stable bottom (105c).

The invention relates to a method for producing and depositing a bag, in particular a flap bag (1), wherein the bag has a base, a filling opening and, in a pocket region (3), two layers, and the two layers are welded together at least in the region of a side seam (6) of the bag, wherein the bag is then moved by means of at least one transport arm (9) to a depositing device and during the movement is held on the transport arm (9) by means of negative pressure, characterised in that the at least one transport arm (9) is oriented parallel to the side seam (6) of the bag, and after welding of the two layers, as a result of which the side seam (6) is formed, the side region of the bag is placed on the transport arm (9) and during movement to the depositing device and up until depositing, the bag is held on the transport arm (9) by means of negative pressure.

A head seal device of a bag making apparatus includes a pair of seal units configured to face each other in a facing direction. Each of the seal units includes a heat seal member and a heater. The heat seal device includes an adjustment unit configured to move the first seal unit in a width direction of continuous sheet panels, and to move the second seal unit in the width direction of the sheet panels in accordance with movement of the first seal unit in the width direction.

A welding device (10a; 10b) for welding an outlet element (12a; 12b) to a packaging material (14a; 14b) has at least one anvil (16a; 16b) comprising at least one receiving region (18a; 18b) for receiving the outlet element (12a; 12b) that is to be welded, has a holding element (20a; 20b) which the anvil (16a; 16b) is arranged on, and at least one welding die (22a; 22b), in particular a sonotrode, which is configured to interact with the anvil (16a; 16b) for a welding of the outlet element (12a; 12b) to the packaging material (14a; 14b), wherein the welding device (10a; 10b) comprises at least one support unit (24a; 24b) for supporting the anvil (16a; 16b), comprising at least one movably supported support element (26a; 26b), which is configured to exert a holding force onto the anvil (16a; 16b) in a welding operation state of the welding die (22a; 22b).