A thermal bonding assembly for sheets made of polymeric material includes at least one pair of jaws that can be moved mutually closer, at least one of which is provided with a heater at its surface for abutment against a corresponding complementary surface of the other jaw of the pair. The assembly includes a shaft that can rotate by virtue of the action of a respective motor. The rotatable shaft includes at least two eccentric rings which are arranged side by side so that the eccentric portion that protrudes the most with respect to the rotation axis is substantially mutually opposite. Each jaw of the pair includes a respective through hole for the accommodation of the shaft. The shaft is accommodated in the hole of a respective jaw with the interposition of a rotatable disk.

A sonotrode or ultrasonic welding apparatus for ultrasonically processing a material, including a sealing surface adapted to contact the material to be processed, a rear surface opposite to the sealing surface, and a circumferential lateral surface connecting the sealing surface to the rear surface, the lateral surface having two side surfaces arranged substantially parallel to each other and two end surfaces arranged substantially parallel to each other. In order to provide a sonotrode or ultrasonic welding apparatus for processing a material, which at least reduces damage to the material and at the same time does not impair the production speed, it is proposed that the sealing surface has a convexly curved inlet section which adjoins the lateral surface, and wherein the sealing surface has a coating at least in a section.

A manufacturing apparatus of a flexible display device, including: a main chamber in which a display device is mounted; an auxiliary chamber configured to inject a first pressing material having fluidity into the main chamber; and a driving portion configured to rotate the main chamber.

A jaw assembly (10) that receives a tubular bag material (11) that is transversely sealed and transversely cut by the jaw assembly (10) to form bags 12 of snack food. The tubular bag material (11) is delivered in a downward direction (13). The jaw assembly (10) includes sealing jaws (27, 28), with the jaws (27, 28) operating in pairs to transversely seal the tubular bag material (11). Each of the jaws (27,28) has an end surface (29) that heats and engages the tubular bag material (11), to form the seal therein. Each surface (29) is spaced from its respective rotational axis by a radius (31). Most preferably the radius (31) is less than 85 mm, but greater than 65 mm.

A joining element has an anchoring portion for in-depth anchoring in the object and a head portion arranged proximally of the anchoring portion with respect to an insertion axis. The head portion has a lateral outer surface that has a structure that is well-defined, especially within tight tolerances. The joining element is positioned relative to an object of a non-liquefiable material such that the anchoring portion reaches into an opening of the object or is placed adjacent a mouth thereof. Then, the joining element is pressed towards a distal direction, to press the anchoring portion into the opening, while mechanical vibration energy is coupled into the joining element by a tool, in an amount and for a time sufficient for liquefaction of a portion of the thermoplastic material to cause interpenetration of the thermoplastic material into structures of the object.

A pressure jaw assembly (1) for a sealing jaw arrangement of a filling machine. The pressure jaw assembly (1) comprises a pressure jaw frame (10), a pressure element (20) arranged to be moved relative the pressure jaw frame (10), a compressing means (40) arranged at least partly between the pressure jaw frame (10) and the pressure element (20). The compressing means (40) is arranged to influence the relative movement between the pressure element (20) and the pressure jaw frame (10). The pressure jaw assembly (1) further comprises a guide (50, 52) for guiding the pressure element (20). The guide (50, 52) is connected to the pressure jaw frame (10), and the guide (50, 52) is arranged externally of the pressure element (20).

Herein are disclosed apparatus and methods for impinging fluids, e.g. heated fluids, onto the surface of substrates and then locally removing the impinged fluid. The apparatus may comprise at least first and second fluid delivery outlets that are in diverging relation to each other. The apparatus may comprise at least first and second fluid capture inlets that are locally positioned relative to the first and second fluid delivery outlets, respectively. The apparatus and method may be used e.g. to impinge fluids onto two converging substrates and may be used to heat the surfaces of the substrates so as to facilitate melt-bonding the substrates to each other.

A first object is anchored in a second object. The first object has a material with thermoplastic properties, and the second material has a material that is solid and is penetrable by the first material when in a liquefied state. The second object has an insertion face with an opening having a mouth in the insertion face, and the first object has an insert portion that for anchoring is placed in the opening or about the mouth thereof. For anchoring, energy suitable for liquefaction of the first material impinges in an amount and for a time sufficient for at least partial liquefaction of the first material and interpenetration of the first and second materials. The second object, around the opening, has an anisotropic strength with respect to forces perpendicular to the opening axis.

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 sealing apparatus for paper packages achieves more stable ultrasonic sealing by cooling the horn during ultrasonic sealing which would otherwise be unstable due to heat imparted to a horn by continuous sealing. An end portion of a horn of a casing that includes the horn and a converter, or the horn, a booster and the converter is cooled by supplying air to a frame portion exposed toward an anvil side.