The present disclosure relates to an induction sealing system for heat sealing packaging material for producing sealed packages of pourable food products, said sealing system may include a sealing jaw and a counter-jaw. In some embodiments, the sealing jaw may include at least one inductor device having at least one active surface configured to contact said packaging material; at least one flux-concentrating insert; a supporting body including heat-conducting material, said supporting body housing, said at least one inductor device and said flux-concentrating insert; and an interactive surface configured to press against said packaging material. In some embodiments, the counter-jaw may include at least one pressure pad made of elastomeric material, said at least one pressure pad configured to provide a counter pressure to the sealing jaw, wherein said at least one pressure pad has an arched convex contact area with height in the direction towards the sealing jaw.

The invention relates to an extensible bearing element (28) intended to be arranged in a tool for sealing a bottom or a lid of a cardboard package on a body of said package, with a generally polygonal shape.

The extensible bearing element (28) has a cross-sectional profile comprising two parallel extension sections (36) extending along an extension direction (E), each connected, at one of their ends (36E), to a bearing section (38), such that the extension sections (36) and the bearing section (38) define an inflation cavity (30).

The extension sections (36) are configured so as to extend along the extension direction (E) during the inflation.

The bearing section (38) comprises a substantially flat free bearing surface (40), configured to come into contact with the package body, the bearing surface (40) extending along a plane substantially normal to the extension direction (E).

The bearing section (38) further comprises, at the junctions with the extension sections (36), beveled release portions (42).

The invention also relates to an inflation device (6) comprising such an extensible bearing element (28).

A method for providing an inductive sealing bar, comprises providing a conductive coil having at least one heating zone, embedding the coil in a supportive body such that the supportive body covers the entire coil along at least some part of the length of the at least one heating zone; and providing a sealing surface of the sealing bar by planarizing the coil and the supportive body such that the coil is exposed along the entire length of said at least one heating zone. The invention also relates to a sealing bar manufactured according to the method.

An assembly for producing sealed packaging units (14) from a sheet packaging material, comprises: an advancement device (21) for advancing the sheet packaging material along an advancement direction (F), a longitudinal sealing device for sealing opposite borders of the sheet packaging material along a longitudinal sealing band arranged parallelly to the advancement direction (F), thereby forming a continuous tube (15), a transverse sealing device (29) for sealing the continuous tube (15) transversely to the advancement direction (F), so as to define a sealed packaging unit (14). The transverse sealing device (29) comprises a sealing element (30) and an abutment element (31) that are intended to mutually cooperate during sealing while being located on opposite sides of the continuous tube (15). The sealing element (30) is so configured as to act on a side (27) of the continuous tube (15) on which the longitudinal sealing band is provided.

An ultrasonic sealing anvil is provided which is capable of applying an optimal pressure to an overlap part in the absence of misalignment between the overlap part and the anvil, and preventing application of an excessive pressure in the occurrence of misalignment. An ultrasonic sealing anvil is configured to seal a tubular material having an overlap part extending in one direction, in a sealing direction crossing the overlap part. The anvil is provided with a step that can be abutted with the overlap part R, and a pair of grooves arranged sandwiching the step in the sealing direction.

A method and a machine for realizing containers, including at least steps of impressing a shape in relief on a sheet of deformable material, enveloping the sheet about itself and reciprocally joining lateral flaps thereof in order to form a tubular blank, and closing a bottom end of the tubular blank.

A shaker top for dispensing products in a container, including a top unit having a peelable protective cover affixed upon a dispensing liner having at least one perforation, the top unit affixed to a mouth of a container. A method of manufacturing a shaker top with a peelable protective cover, including the steps of affixing a peelable protective cover upon a dispensing liner, assembling a top unit including the peelable protective cover and the dispensing liner, affixing the top unit to a mouth of a container, and covering the container with a cap. A shaker top with a peelable protective cover attached to a container, manufactured by the method of manufacture. A method of using a container having a shaker top with a freshness seal.

A method and apparatus for making pouches is disclosed. It includes using one or more of the following features: using two servo motors to drive a platen, providing a calibration routine is run at start-up and/or after the machine has been operating; controlling in response to feed back from the servo motor(s) such as feedback indicative of the distance the platen travels; the feedback is not of force exerted by the platen; and/or the platen is controlled to prevent unacceptable fracturing of the film laminate.

A vertical form fill and seal system supports a sheet of material having material segments and a tube sized for drawing edges of the elongated sheet of material together in an overlapping configuration to form the sheet into a substantially tube shape. The VFFS also includes a sealer that seals the edges of the material to one another and a gusseting mechanism sized for forming a gusseted tuck in each of a left panel portion of the material and a right panel portion of the material. A cutting mechanism removes a first portion and a second portion of a first segment of the material segments in order to form a first cut and a second cut in the first segment and a sealing mechanism folds and seals the first segment at the first cut and at the second cut to provide an end wall with a substantially flat, rectangular-shaped footprint.

A method for operating a tubular bag machine having a film web capable of unwinding from a supply reel, a shoulder for forming the web into a film tube, a take-off unit serving to move the tube, a longitudinal sealing device for welding the tube parallel to its transport direction by a longitudinal seam, a sealing device with jaws for producing transverse seams in the tube, a separating element for separating finished tubular bags from the tube, the machine being accelerated in a positive acceleration phase from an initial speed to a target speed when starting or being decelerated in a negative acceleration phase from the target speed to a final speed for stopping, wherein, in the positive acceleration phase and/or in the negative acceleration phase, at least one sealing parameter of the jaws for producing tubular bags changes as a function of the conveying speed of the web.