An installation for welding a stack of parts made of thermoplastic composite materials (20) in a local welding plane (P), this installation including an electromagnetic induction head (8), pairs of elements for guiding and pressing the workpiece stack (20) in this local plane (P), and, on each side of the induction head (8), at least one pair of guide elements, each pair of guide elements having a lower guide element (14) and an upper guide element (10) that are superposed, receiving between one another the stack of parts (20) by guiding it in the direction perpendicular to the local welding plane (P).

A packaging assembly (10) including a weighing machine (11) that includes buckets (12, 13) to provide batches of product to be delivered to a former (41), with the former (41) delivering tubular bag material with product to a packaging machine (18). The tubular bag material is delivered to the packaging machine (18) by means of a film drive assembly (17).

The technology relates to a heat sealing system (400). For instance, the heat sealing system may include a sealer assembly (800) including a pair of heat sealing bars (830, 840) configured to generate heat seals. The heat sealing system may also include a positioning (900) assembly including a platform (910) and a motor (952). The sealer assembly may be mounted to the positioning assembly, and the motor may be configured to move the sealer assembly towards and away from an edge of a table (1600).

An automated system and method are disclosed for producing an inflatable product having a first sheet, a second sheet, and a plurality of tensioning structures between the first and second sheets. The system includes an upstream tensioning structure production subsystem that produces the tensioning structures and a downstream preassembly production subsystem that couples the tensioning structures to the first and second sheets. The subsystems may operate simultaneously to produce the inflatable product in an automated, efficient, and repeatable manner.

A unit for forming absorbent sanitary articles including a drum rotatable about its axis of rotation and having a circumferential peripheral surface movable along a feed direction, first feeding means for feeding a succession of pairs of panels of material facing the circumferential peripheral surface and configured to position each pair in such a way that the respective two panels are facing each other and transversely aligned with the feed direction and second feeding means for feeding a continuous web of material suitable for defining at least part of the main body of an absorbent sanitary article, and configured to position the web on the circumferential peripheral surface of the drum in such a way that each panel projects partly sideways from the web. The unit comprises an ultrasonic sealing station located along the circumferential peripheral surface of the drum, in a zone located operatively downstream of the second feeding means, and configured to attach each panel of the pair to the web at at least one plurality of sealing points arranged in succession along the feed direction.

Packaging apparatus (1) comprises a packaging assembly (8) which has a supply unit (300) configured to supply electric energy to a conductive element of a heating head by causing an electric current flow through this conductive element; the conductive element defining a heating surface configured to heat seal one or more parts of said film. The electric conductive element comprising: a supporting substrate (206), at least a conductive structure engaged on the supporting substrate (206), at least one protective layer (208) covering the conductive structure as this latter is engaged between the supporting substrate (206) and the protective layer (208). The conductive element comprising at least one first and one second contacting tabs each integral with said conductive structure; each of said contacting tabs protruding transversally from a prevalent development surface of the conductive structure towards the supporting substrate (206) for defining a terminal contacting end. The heating head (700) comprising a first and second electric terminals respectively engaged with said first and second contacting tabs; each of said electric terminal is configured for stably constraining opposite faces of the respective contacting tab which define the thickness of said tab.

The present invention provides a manufacturing system of a packaging bag with excellent manufacturing efficiency. According to the present invention, provided is a manufacturing system of a packaging bag, including: a film supply device; a conveying device; a bottom insertion device; a bottom sealing device; a transverse sealing device; and a cutoff device, wherein the film supply device supplies a front surface long film and a back surface long film facing each other, the conveying device is configured to convey the front surface long film and the back surface long film, the bottom insertion device, the bottom sealing device, the transverse sealing device, and the cutoff device are arranged in this order along a conveyance direction, the bottom insertion device is configured to start inserting a bottom long film between the front surface long film and the back surface long film at an insertion start position and to complete insertion of the bottom long film at an insertion completion position downstream from the insertion start position, the bottom sealing device is configured to weld the bottom long film to the front surface long film and to the back surface long film, the transverse sealing device forms a transverse seal portion extending in a direction perpendicular to the conveyance direction so as to weld the front surface long film and the back surface long film to each other, and the cutoff device cuts off the front surface long film, the back surface long film, and the bottom long film along the transverse seal portion.

A unit for forming absorbent sanitary articles including a drum rotatable about its axis of rotation and having a circumferential peripheral surface movable along a feed direction, first feeding means for feeding a succession of pairs of panels of material facing the circumferential peripheral surface and configured to position each pair in such a way that the respective two panels are facing each other and transversely aligned with the feed direction and second feeding means for feeding a continuous web of material suitable for defining at least part of the main body of an absorbent sanitary article, and configured to position the web on the circumferential peripheral surface of the drum in such a way that each panel projects partly sideways from the web. The unit comprises an ultrasonic sealing station located along the circumferential peripheral surface of the drum, in a zone located operatively downstream of the second feeding means, and configured to attach each panel of the pair to the web at at least one plurality of sealing points arranged in succession along the feed direction.

A dual roll fabric welding or seaming machine is configured to seam pieces of sheet material to one another as the pieces move downstream. The machine includes modular gantries and various actor devices which may be readily mounted on any of the gantries to interact with the moving sheet material to achieve various functions, such as seaming pieces of sheet material together, forming hems, applying grommets to the sheet material, printing on the sheet material, connecting reinforcement strips or ropes to the sheet material and cutting the sheet material.

A welding device that welds a resin portion to a workpiece includes a heating member that heats the resin portion to melt the resin portion, a pressing member that presses the resin portion having been melted against the workpiece via a sheet material in a pressing direction to weld the resin portion to the workpiece, a pair of support members that is disposed away from each other in a moving direction of the sheet material that intersects the pressing direction, and supports the sheet material so that the sheet material covers the pressing surface in the pressing direction, a moving mechanism that slides the sheet material supported by the support members in the moving direction, and a control circuit that determines whether the sheet material is to be slid, and controls the moving mechanism so that the sheet material is slid when a determination result is positive.