An ultrasonic welding system and method for making welds on a strip made of polymeric material. The system includes a supporting structure, N welding equipment mounted thereon, and a processor. Each N welding equipment includes a pair of welding heads made of a sonotrode, including a sonotrode welding surface, and an anvil, including an anvil welding surface. One of the two welding heads is movable with respect to the other between a non-operating position and a welding position. A control member is operatively associated with the sonotrode and configured to vibrate the sonotrode at a nominal ultrasonic vibration frequency and to detect a current value of the vibration frequency. A vibration sensor is mounted on the movable welding head. The processor monitors the alignment condition between the sonotrode welding surface and the anvil welding surface by cooperating with the control member and with the vibration sensor.

Provided is a production method for a freshness-keeping bag capable of reducing the inflow of oxygen from the outside of the bag to a very low level, and thereby keeping the freshness of a content thereof for a long period of time. The present invention provides a method for producing a freshness-keeping bag formed of a film, wherein the freshness-keeping bag has a band-shaped joining region in which two ends of the film are overlapped and joined together, the joining region comprising a plurality of joined parts in which the two ends of the film are joined together, and a non-joined part which is located between adjacent ones of the joined parts and in which the overlapped ends of the film are not joined together, the non-joined part composing a non-linear ventilation passage communicating between an internal space of the bag and the outside of the bag, the method comprising the step of forming the joined parts by ultrasonic welding, wherein the step of forming the joined parts includes continuously forming the joined parts in the film, while rotating a disk-shaped ultrasonic welding anvil with respect to the film, wherein the ultrasonic welding anvil has a plurality of protrusions formed on an outer periphery thereof continuously at given intervals and correspondingly to the configuration of the joined parts of the bag.

A device for ultrasonic processing of materials comprising a sonotrode rotatable about a first axis and having a first sealing surface extending in the axial direction, the device having a first radial bearing supporting the sonotrode, at least a portion of the first sealing surface being spaced in the axial direction from the radial bearing, characterised in that at least one support element is engageable or in engagement with the sonotrode such that a force acting perpendicular to the axis on an engagement portion of the sealing surface is at least partially taken up by the support element.

The present invention relates to a method for portion-packing of an oral pouched snuff product (1, 1). The method comprises a) supplying and advancing a tubular web (19, 19, 19) of packaging material enveloping a continuous feed (23, 23, 23a, 23b) of filling material in a direction of travel (L), b) forming transverse seals (39) in the tubular web across the continuous feed of filling material by means of ultrasonic welding, the transverse seals extending in a transverse direction (T) being perpendicular to the direction of travel. The present invention further relates to an arrangement (17, 17, 17) for portion-packing of an oral pouched snuff product.

The present disclosure relates to a processing apparatus for a secondary battery current collector. The processing apparatus includes: a foil uncoiling roller; a composite current collector uncoiling roller; a welding device; a plurality of driving rollers; and a coiling roller. Both the foil uncoiling roller and the composite current collector uncoiling roller are disposed on a feeding side of the welding device. The welding device is configured to weld foil to a portion of a composite current collector. The plurality of driving rollers is respectively disposed on a feeding side and a discharging side of the welding device, and has an equal line speed. The plurality of driving rollers is configured to drive the overlapped foil and the composite current collector to downstream. The coiling roller is configured to wind up the composite current collector having the foil welded thereon.

A method is used for a pair of bonding composite materials that are each provided with a melting material and a heat-resistant material. Each heat-resistant material includes a heat-resistant member and a binder member. The ceramic separators have ceramic layers that face each other and that are bonded. An ultrasonic wave is applied to the composite materials while applying a pressure thereto with a processing member. Also heat is applied to the binder members with a heating member. Here, the heater heats the binder members to a temperature that is greater than or equal to the glass transition temperature of the binder members and less than the melting point of the binder members.

A method for ultrasonic welding of materials, comprising generating ultrasonic waves in a welding assembly; transmitting the generated waves along the welding assembly in a first direction; receiving the generated waves in a sonotrode, the waves entering the sonotrode while propagating along the first direction; causing the received waves within the sonotrode to propagate along a second direction, perpendicular to the first direction; and oscillating a welding surface of the sonotrode using peaks and valleys of the waves propagating in the second direction.

An ultrasonic welding system that includes a rotary sonotrode, having a body that includes a first horizontal side having a first antinode; a second horizontal side having a second antinode; a first vertical side having a first node; a second vertical side having a second node; and a middle region, an upper region, and a lower region, wherein the length of the middle region is greater than the length of the upper region and greater than the length of the lower region; at least one ultrasonic transducer that is transversely aligned with the rotary sonotrode; and at least one input tool disposed between the rotary sonotrode and the transducer that includes a node and is an integral part of the transducer or is a component separate from the transducer, wherein the input tool is connected to the rotary sonotrode at the middle region thereof on either the first vertical side or the second vertical side, and wherein the connection point between the input tool and the sonotrode is located a predetermined distance away from the node of the sonotrode and a predetermined distance away from the node of the input tool.

Systems and methods are provided for assembling a section of a fuselage of an aircraft. The method includes pulsing a half barrel section of the fuselage along a track in a process direction, utilizing an indexing feature associated with the half barrel section to determine a desired contour for a portion of the half barrel section, and enforcing the desired contour onto the half barrel section using components that enforce an inner mold line and components that enforce an outer mold line when the half barrel section is out of tolerance from the desired contour.

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.