A plastic welding machine for welding plastic parts together is capable of controlling the weld force vector in both magnitude and direction.

An apparatus for fabricating an elastic nonwoven material generally includes a rotary ultrasonic horn and a rotary anvil positionable in close proximity to the ultrasonic horn. The anvil has a face with a width and a circumferential axis. The face has a plurality of ridges each of which defines a plurality of interspaced lands and notches.

A sealing device incorporated in a packaging machine heat-seals a vicinity of a bag mouth of a packaging bag. Paired heater bars are disposed opposite each other so as to be openable/closable and hold the vicinity between them when closed, thereby heat-sealing the vicinity. A link mechanism converts rotation of an output shaft of a servomotor to an opening/closing operation of the heater bars. A storage unit stores seal patterns, each of which includes a sealing pressure applied to the parts and a sealing time period for which the parts are continuously held. A selection unit is configured to select one seal pattern. The output shaft is rotated by a predetermined closing angle according to the sealing pressure of the selected seal pattern to close the heater bars. The heater bars are maintained in the closed state for the sealing time period of the selected seal pattern.

A method for optimizing a welding process to produce a weld joint having a predetermined strength includes measuring a plurality of melt layer thicknesses of weld joints for a plurality of sample assemblies formed by the welding process, measuring a plurality failure loads of weld joints for the plurality of sample assemblies, each of the measured plurality of failures loads being associated with one of the measured plurality of melt layer thicknesses, selecting a first failure load from the plurality of measured failure loads responsive to determining that the first failure load corresponds to a predetermined weld strength, and selecting a first melt layer thickness from the plurality of measured melt layer thicknesses that is associated with the selected first measured failure load.

A cross seal device 100 is provided. The device 100 comprising a cross sealing table X having a cross sealing station (A) and a toggle assembly (B). The cross sealing station (A) comprising a front seal assembly (1) and a rear seal assembly (2) configured to engage and disengage by controlled oscillation of first pair of C shaped actuator levers (6c, 6d) and second pair of C shaped actuator levers (6a, 6b) via sealing drive shaft (5) of toggle assembly B. The cross sealing station (A) performs horizontal reciprocating action for sealing. The cross sealing device 100 further comprising Cross Sealing Up Down control assembly C which controls vertical reciprocating movement of cross sealing table X employing Stripping System D to ensure no PIS (Product in Seal) and improves packaging capacity.

A packaging material sealing device, in particular cross seam packaging material sealing device for a vertical packaging machine, includes a first sealing jaw and at least a second sealing jaw, at least one movement unit for actuating the two sealing jaws along a sealing direction, and at least one control unit. In at least one operating state the control unit controls a rotation of the two sealing jaws relative to a transport direction of a packaging material. At least two guiding rails of the movement unit for moving the two sealing jaws along at least the sealing direction each have clearance with respect to their bearings in order to allow rotation of the two sealing jaws relative to the transport direction.

A packaging material sealing device includes a first sealing jaw and at least a second sealing jaw and at least one movement unit, which includes a first actuator and at least a second actuator for actuating the two sealing jaws along a sealing direction, and at least one control unit. In at least one operating state, the control unit controls the two actuators for setting an asymmetrical sealing force for the two sealing jaws.

A method and apparatus for forming pouches and/or bags is disclosed. A seal and/or insert is crushed using a multiphase sealer or crusher.

An apparatus for fabricating an elastic nonwoven material generally includes a first bonding module, a second bonding module positioned in close proximity to the first bonding module, and a pinching device. The first bonding module and the second bonding module are adapted to bond at least one elastic strand of the elastic nonwoven material. The pinching device is adapted to limit a snap-back potential of the at least one elastic strand if the at least one elastic strand becomes severed during bonding.

A method and apparatus for forming pouches and/or bags is disclosed. A seal and/or insert is crushed using a multiphase sealer or crusher.