An inductor for induction welding of a packaging material having at least one layer of metal foil is disclosed. The inductor comprises a welding surface configured to be arranged opposite the packaging material for heating thereof, and at least one spacing element arranged to protrude from the welding surface in a first direction towards the packaging material, when the packaging material is arranged opposite the welding surface, whereupon the least one spacing element separates the packaging material from the welding surface by an off-set distance. A sealing machine for sealing packaging material and a method of welding a packaging material is also disclosed.

An ultrasonic processing system adapted to subject a web running in a machine direction to ultrasonic processing includes a first mechanical element defined by one of an ultrasonic horn and an anvil and a second mechanical element defined by a remainder. The web placed on an outer peripheral surface of a rotary drum moves conforming to the drum in a machine direction. The first mechanical element is provided on the inner side of the drum and the second mechanical element is provided on the outer side of the drum. The first and second mechanical elements repeat a step of forward movement and a step of backward movement in a direction intersecting the machine direction across the web. In both steps, the first and second mechanical elements come in close contact with each other by the intermediary of the web and thereby subject the web to the ultrasonic processing.

A window manufacturing method includes providing a first adhesive on a dummy substrate, providing a first mother substrate on the first adhesive, disposing a first portion of an interleaving paper on a surface of a suction stage disposed on the first mother substrate, the surface of the suction stage facing the first mother substrate, and pressing the suction stage toward the first mother substrate to attach the first mother substrate to the dummy substrate.

The invention relates to a method for producing flexible tube bodies (18) for packaging tubes from a film substrate (1) which has a print, preferably on an outer side (2), and which has or consists of at least one weldable plastic layer and which comprises a first longitudinal edge side (8), which extends in a longitudinal direction, and a second longitudinal edge side (8′) parallel thereto and spaced apart therefrom, wherein the film substrate (1) is shaped by shaping means (23) to form a tube, and the two longitudinal edge sides (8, 8′) are in particular welded to one another with the formation of a longitudinal weld seam, wherein a strip (12) is arranged, in the region of the abutment point and/or of the longitudinal weld seam, in the interior (17) of the film substrate (1) shaped to form the tube and is connected, in particular welded, to the longitudinal edge sides (8, 8′) at least in certain regions or portions. According to the invention, prior to the formation of the longitudinal weld seam, at least one longitudinal edge side (8′) is shaped, in particular cut, in such a way that, in the film substrate (1) shaped to form the tube, the longitudinal edge sides (8, 8′) bear against one another, in particular in abutting fashion, radially only in the region of the outer side (2) with at least one tip (9) formed by the shaping operation.

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 rotary device for welding a continuous web includes a rotary element, support elements for supporting the web, supported by the rotary element, and a plurality of welding units for welding the web. Each welding unit passes from a non-operating position to an operating position and vice versa, and includes a first movement device for commanding a relative rotation of an anvil element relative to a welding tip and a second movement device for moving the anvil element relative to the welding tip such that a contact surface of the anvil element and a contact surface of the welding tip make contact with a portion of the web in a zone between them, and vice versa. First and second drive mechanisms drive the first and second movement devices. The first and second drive mechanisms are configured to vary a positioning of the welding tip relative to the axis.

Disclosed herein is a packaging machine that according to one embodiment includes a rollers block with a plurality of roller assemblies distributed in series along a horizontal longitudinal axis of the machine and a transmission block with a motor and a transmission mechanism configured for transmitting the rotation of the motor to all the roller assemblies. At least one roller assembly is independent of the rest of the roller assemblies, is movable with respect to the transmission block, and is configured for cooperating with the transmission mechanism in an operative position, in which the transmission mechanism transmits the rotation of the motor of the transmission block to the roller assembly.

Disclosed is a buffering air cushion machine, wherein the angle between a heat-sealing cooling transmission module as a core component of the buffering air cushion machine and a horizontal plane is between 20-50 degrees, thus greatly decreasing the transverse dimension of the buffering air cushion machine, so as to decrease the size of the whole machine and decrease the space occupied by the buffering air cushion machine; an inflation guide rod of a bent type may release some tension on a sealing side (an inflating passage) of a air cushion film, and may prevent wrinkles and bends from forming on the sealing side of the air cushion film during heat-sealing, so as to improve the quality of heat-sealing; furthermore, an upper coiling film guide rod and a lower coiling film guide rod may block the inflating passage connecting two air cushion films, and may prevent the air in the air cushion film which is filled with air but not sealed yet from travelling forward, so as to form a sealed high-pressure region and maintain the pressure in an inflation region, thus maintaining the pressure in the air cushion film after heat-sealing.

A welder for joining two polymeric sheets together using a wedged heating element allows for a heating profile on opposite faces of the heating element to be varied by controlling where each of the polymeric sheets contacts the corresponding face.

A head seal device of a bag making apparatus includes a pair of seal units configured to face each other in a facing direction. Each of the seal units includes a heat seal member and a heater. The heat seal device includes an adjustment unit configured to move the first seal unit in a width direction of continuous sheet panels, and to move the second seal unit in the width direction of the sheet panels in accordance with movement of the first seal unit in the width direction.