A welding station for an installation for manufacturing packages with pads, the welding station including a plurality of longitudinal welding heads. Each welding head is configured to weld to one another two superposed sheets as said sheets advance in a first direction and may include a welder to apply heat on an action area. Each welding head has a main body, a first traction belt wound in the main body and a second traction belt wound to said main body, parallel to the first traction belt and separated from the first traction belt by a separation gap in a second direction which is transverse to the first direction. The action area is arranged in said separation gap, between both traction belts. Each of the longitudinal welding heads is configured to be able to be moved along the second direction.

A protective packaging formation device is disclosed herein. The device includes an inflation assembly that directs fluid between first and second overlapping plies of a web material. The device also includes a sealing mechanism that includes an arcuate web-support surface. The web-support surface includes a heater that defines a heating zone that is operable to heat the plies to create a longitudinal heat seal that seals the first and second plies together as the web is driven over the heating zone in a downstream direction. The web-support surface also includes a cooling zone disposed downstream of the heating zone operable to allow the heated plies to cool at the longitudinal heat seal as the web is driven over the heating zone in a downstream direction, such that the cooled longitudinal heat seal retains the fluid between the plies.

A system includes a forming funnel, a cutting element, and a fusing device. The forming funnel has divergent surfaces arranged to receive a mailer in an insertion direction between the divergent surfaces. The forming funnel includes a slot that constrains the mailer after the mailer is inserted between the divergent surfaces. The cutting element cuts off a portion of the mailer and to forms a cut end of the mailer as the mailer is moved through the slot in a sliding direction. The fusing device applies pressure to an exterior of the cut end of the mailer and applies heat to the cut end of the mailer as the mailer is moved through the slot. The pressure and the heat applied by the fusing device cause portions of the cut end to fuse together to close the mailer.

The present disclosure is directed to a compression belt for inflation and sealing devices. The device may include an inflation assembly, a heating assembly, and a drive mechanism. The inflation assembly may direct fluid between first and second overlapping plies of a flexible web material to inflate chambers between the plies. The heating assembly may be operable to heat the first and second plies of the web material to create a longitudinal heat seal that seals the fluid in the inflated chambers. The drive mechanism may drive the web material in a downstream direction. The drive mechanism may tension the web material against the heating assembly. The drive mechanism may include a first belt including a high grip material on a surface that contacts the web material to grip the web material during heating by the heating assembly.

A foam assembly system is provided. The system is configured to heat a surface of foam. After the heating of the foam, an adhesive is applied, typically a high solids adhesive. The foam is then bonded to another foam surface. It has been found that the pre-heating of the foam before adhesive application greatly enhances the bond strength between the foam and the second foam surface to which it is adhered.

A former assembly (10) including a base (11) to which there is attached a frame (12) that supports a sleeve (13). The sleeve (13) encloses a generally upwardly extending passage (14) to which product is delivered in batches from a weighing machine. Fixed to the internal surface (20) of the former shoulder (15) are heaters (24) that heat the external surface (16) over which the film bag material passes to be heated thereby.

An applicator mitt assembly system comprises an applicator mitt tooling including: a tooling body having a mitt-perimeter cutter and weld bead thereon which are shaped to a perimeter of a mitt to be cut; a heating element associated with the tooling body which is shaped so as to substantially match a shape of the weld bead to create a perimeter weld for the mitt when engaged with the tooling body; and an ejector platen which is actuatable relative to the tooling body to eject a cut and welded mitt. A conveyor device is adapted to feed mitt material towards the tooling and a tooling actuator adapted to actuate the tooling relative to the conveyor device to allow the cutter to cut mitt material at the conveyor device. A discrete applicator mitt tooling, method of assembling an applicator mitt, and welded applicator mitt are also provided.

A system (300) for closing mailers includes a forming funnel (320) and a fusing device (310). The forming funnel includes funneling surfaces that receive an opening of a mailer in an insertion direction (302) and constrain the opening of the mailer after the opening of the mailer is inserted. The funneling surfaces are arranged to continue constraining the opening of the mailer as the mailer moves in a sliding direction (304). The fusing device includes a slot that receives the constrained opening of the mailer from the forming funnel. The fusing device applies pressure and heat to the opening of the mailer as the opening of the mailer moves through the slot. The pressure and the heat applied by the fusing device cause portions of the opening to fuse together to close the mailer.

A tray sealer comprises a conveyor arrangement for conveying packaging trays along a conveying direction. The conveyor arrangement comprises a first conveyor device for conveying a first line of packaging trays along the conveying direction, a second conveyor device running laterally alongside the first conveyor device for conveying a second line of packaging trays along the conveying direction, and a center guide which is arranged between the first conveyor device and the second conveyor device and extends along the conveying direction. The conveyor arrangement further comprises a third conveyor device for conveying packaging trays along the conveying direction. The third conveyor device extends adjoining the second conveyor device in terms of the conveying direction laterally alongside the first conveyor device.

A welding head comprises a welding element (51) for welding a lid (1) to an opening device of a container (10). The welding head (43) further comprises a 5 compensating device (62) operable for compensating a misalignment between the welding element (51) and the lid (1), thereby centering the welding element (51) relative to the lid (1).