There is described a packaging assembly configured to form and seal a plurality of packs for containing a pourable food product starting from a tube of packaging material; the packaging assembly comprises a pair of tracks and at least a pair of moving elements, which are cyclically movable along the tracks, respectively; each moving element comprises one forming unit configured to cooperate with the tube so as to surround a portion of the tube destined to form a main portion of one respective pack; and one sealing unit configured to cooperate with the tube to sequentially seal the tube at predetermined consecutive cross sections, each pair of consecutive cross sections forming opposite sealing bands of one respective pack; each forming unit is mounted onto the respective moving element in a linearly movable manner towards and away from the sealing unit mounted onto the same moving element.

The present invention discloses a household vacuum sealer and a bag-cutting sealing method. In the household vacuum sealer, at least one cutter device is slidably mounted on the upper hood, a heat-seal bar and an evacuative groove are arranged at the front side of the upper portion of the lower hood, the upper hood or the lower hood is provided with a bag receiving chamber, a detachable automatic rollback shaft is rotatably mounted in the bag receiving chamber, the elastic rollback mechanism for automatically rolling the rollback shaft back and the elastic unidirectional locking mechanism for locking the automatic rollback shaft are mounted at the end portion of the automatic rollback shaft; the cutter device protrudes from a bottom surface of the upper hood, and the cutter moves at one side of the heat-seal bar or one side of the evacuative groove back and forth after the upper hood is locked onto the lower hood, for cutting off the bag pressed tightly between the upper hood and the lower hood. The present invention has a simple structure since the bag is cut at the original heat-seal bar or the evacuative groove of the lower hood, which is more convenient. Subsequent to cutting off the bag, the vacuum packaging bags are automatically rolled back after the hood is opened, which reduces the number of operation steps for the user, and exhibits ease and quickness of operation.

An anvil of an ultrasonic sealing apparatus that includes a horn provided with a strip-shaped vibration applying surface at an end face thereof, the anvil being provided with an abutment surface at an end face thereof, the ultrasonic sealing apparatus sandwiching a laminate of two or more sheets between the vibration applying surface and the abutment surface and melting thermoplastic resin on the sheets by ultrasonic vibration delivered to the vibration applying surface, thereby bonding the laminate. The abutment surface includes a strip-shaped welding surface portion projected toward the horn, and the end face thereof is opposed to the vibration applying surface, and a plurality of block members arranged along the strip-shaped welding surface portion in an extending direction of the welding surface portion without being in contact with each other, and the plurality of block members has a height equal to or lower than the welding surface portion.

An ultrasonic sealing apparatus which allows for easy maintenance of a horn and high cooling efficiency of the horn is provided. The ultrasonic sealing apparatus includes a horn that abuts on a cylindrical material and applies vibration thereto, and a horn cover which includes a small frames that cover a lateral surface of the horn and have slits through which a space in which the horn is enclosed communicates with outside, the horn cover being removably attached independently from the horn.

A sealing tool module (100) is provided. The sealing tool module (100) comprises a housing; a heat-sealing plate (120); and a first actuator for use in moving said heat-sealing plate between a retracted position and a heat-sealing position, the first actuator being movably mounted with respect to the housing; wherein the first actuator is a first shaft on the end of which the heat-sealing plate (120) is mounted, the first shaft being axially movable relative to the housing; and the first shaft comprises a channel configured to guide wiring through the housing and to the rear of the heat-sealing plate (120). A sealing tool assembly (1) for heat sealing a cover film to a container is also provided. The assembly comprises a sealing module support (10) having a plurality of openings therethrough and a plurality of sealing modules each disposed in a respective one of the plurality of openings and configured to independently perform heat sealing, wherein each of the plurality of sealing modules is removable from the sealing module support independently of the other sealing modules.

Provided is a bag making and packaging machine capable of accurately detecting, with a simple configuration, the timing at which an article that is dropped and supplied from an article supply device disposed above the bag making and packaging machine, will arrive at a lateral sealing mechanism. A bag making and packaging machine receives articles dropped and supplied from a combination weighing machine disposed above the bag making and packaging machine and packages the articles in a bag to be made. The bag making and packaging machine includes a lateral sealing mechanism, a servo motor, and a falling time detector. The lateral sealing mechanism laterally seals a packaging material of a cylindrical shape. The servo motor drives the lateral sealing mechanism.

The vacuum sealer includes a base, a cover, a vacuuming device, at least a heating device, at least a heat-resistant element wrapping around the heating device, at least a heat insulation element between the base and the heating device, at least a power provision device, and at least a safety breaker device. The safety breaker device includes at least a safety switch, and at least a trigger element. The object to be sealed is placed on the heating device and, as the cover closes the base, the safety switch engages the trigger element to release safety breaker device and to allow the power provision device to power the heating device. The heat insulation element prevents heat from conducted to the base. With the dual protection from the safety breaker device and the heat insulation element, safety is enhanced and the power provision device may operate under high voltage.

An anvil for transversally sealing a tube having a longitudinal seam portion can include a first elongate contact surface and a second elongate contact surface. In some embodiments, the first elongate contact surface includes a first groove and the second elongate contact surface includes a second groove, each one of the first groove and the second groove being adapted to receive, in use, a respective section of the longitudinal seam portion of the tube. The first elongate contact surface can include a first seam interaction portion positioned within the first groove and having a first surface profile. The second elongate contact surface can include a second seam interaction portion positioned within the second groove and having a second surface profile. In some embodiments, the first surface profile differs from the second surface profile.

A method and apparatus for sealing a plastic enclosure is provided. The apparatus includes a handle including elements pivotally coupled together at a first end. The apparatus also includes a pair of spaced apart heating elements positioned along an inner surface of an element and connected to a power source where a longitudinal axis of the heating elements is oriented parallel with a longitudinal axis of the element. Plastic material including first and second plastic layers is positioned at an interface between the second elements. Upon pivoting the first elements from an open position to a closed position the heating elements increase a temperature at the interface to melt the plastic material and form a pair of spaced apart seals between the first and second plastic layers.

A system for manufacturing a balloon envelope includes a table component and a sealing component. The sealing component includes a first level and a second lower level. The first level further includes first and second platforms. The first platform can provide a work area for sealing respective first and second sheets of material together to form a sealed edge and the second platform may provide a work area for sealing the second sheet of material and a third sheet of material together. The first, second, and third sheets of material respectively form first, second, and third gores of the balloon envelope. The sealing component may be configured to move along length of the first platform and to apply a heat seal to bond the first sheet of material to the second sheet material and form a sealed edge.