Abstract: A roller-type compression—incision—cutting unit for packaging material webs comprises: a motor-driven roller (2) provided with at least one projecting incision—cutting profile (3); a driven counter-roller (4) provided with at least one abutting counter-profile (5); kinematic means (6) for directly transmitting motion, in a synchronised fashion, between the roller (2) and the counter-roller (4), the kinematic means being connected to respective shafts (2a, 4a); adjustable pusher elements (7), adapted to allow an incision or cutting contact between the roller (2) and the counter-roller (4); at least one rolling element (10, 11) interposed between the roller (2) and the counter-roller (4), and adapted to separate the rotation of the motor-driven roller (2) from the rotation of the thrust rings of the driven counter-roller (4).

Abstract: Described is a device for feeding and dosing infusion or extraction product of a machine (100) for making filter bags (S) containing the infusion or extraction product comprising a space (2) for containing infusion or extraction product defined by an outer lateral wall (3) and by an inner lateral wall (4) comprising openings (7) for the passage of the product; a feeding chamber (6) made inside the inner lateral wall (4), communicating through the openings (7) with the containment space (2) and equipped with an outlet (8) leading outside the containment space (2); a shutter (9), which is movable inside the feeding chamber (6) at least between a closed lower end position (P1), wherein it occludes the openings (7), and an open upper end position (P2), wherein it allows the passage of the product from the containment space (2) to the feeding chamber (6) through the openings (7) towards the outlet (8) to fill the filter bags (S) being formed.

Abstract: An overwrap envelope (7) containing a filter bag (1) for infusion products comprises a sheet (2) of overwrapping material folded into a U shape along its transversal axis (X) around the filter bag (1). The overwrap envelope (7) has two longitudinal sides (3, 4) and one transversal side (5) sealed by at least two sealing lines (6) which are uninterrupted along the longitudinal sides (3, 4) and along the transversal side (5). Each scaling line (6) is defined by two longitudinal stretches and one transversal stretch which are joined to obtain an uninterrupted shape and which form an uninterrupted perimeter seal.

Abstract: Described is a device for feeding and dosing infusion or extraction product of a machine (100) for making filter bags (S) containing the infusion or extraction product comprising a space (2) for containing infusion or extraction product defined by an outer lateral wall (3) and by an inner lateral wall (4) comprising openings (7) for the passage of the product; a feeding chamber (6) made inside the inner lateral wall (4), communicating through the openings (7) with the containment space (2) and equipped with an outlet (8) leading outside the containment space (2); a shutter (9), which is movable inside the feeding chamber (6) at least between a closed lower end position (P1), wherein it occludes the openings (7), and an open upper end position (P2), wherein it allows the passage of the product from the containment space (2) to the feeding chamber (6) through the openings (7) towards the outlet (8) to fill the filter bags (S) being formed.

Abstract: An overwrap envelope (7) containing a filter bag (1) for infusion products comprises a sheet (2) of overwrapping material folded into a U shape along its transversal axis (X) around the filter bag (1). The overwrap envelope (7) has two longitudinal sides (3, 4) and one transversal side (5) sealed by at least two sealing lines (6) which are uninterrupted along the longitudinal sides (3, 4) and along the transversal side (5). Each scaling line (6) is defined by two longitudinal stretches and one transversal stretch which are joined to obtain an uninterrupted shape and which form an uninterrupted perimeter seal.

Abstract: An overwrap envelope (7) containing a filter bag (1) for infusion products comprises a sheet (2) of overwrapping material folded into a U shape along its transversal axis (X) around the filter bag (1). The overwrap envelope (7) has two longitudinal sides (3, 4) and one transversal side (5) sealed by at least two sealing lines (6) which are uninterrupted along the longitudinal sides (3, 4) and along the transversal side (5). Each sealing line (6) is defined by two longitudinal stretches and one transversal stretch which are joined to obtain an uninterrupted shape and which form an uninterrupted perimeter seal.

Abstract: An overwrap envelope (7) containing a filter bag (1) for infusion products comprises a sheet (2) of overwrapping material folded into a U shape along its transversal axis (X) around the filter bag (1). The overwrap envelope (7) has two longitudinal sides (3, 4) and one transversal side (5) sealed by at least two sealing lines (6) which are uninterrupted along the longitudinal sides (3, 4) and along the transversal side (5). Each sealing line (6) is defined by two longitudinal stretches and one transversal stretch which are joined to obtain an uninterrupted shape and which form an uninterrupted perimeter seal.

Abstract: A roller-type compression-incision-cutting unit for packaging material webs comprises: a motor-driven roller (2) provided with at least one projecting incision-cutting profile (3); a driven counter-roller (4) provided with at least one abutting counter-profile (5); kinematic means (6) for directly transmitting motion, in a synchronised fashion, between the roller (2) and the counter-roller (4), the kinematic means being connected to respective shafts (2a, 4a); adjustable pusher elements (7), adapted to allow an incision or cutting contact between the roller (2) and the counter-roller (4); at least one rolling element (10, 11) interposed between the roller (2) and the counter-roller (4), and adapted to separate the rotation of the motor-driven roller (2) from the rotation of the thrust rings of the driven counter-roller (4).

Abstract: A method for forming a packaging material in multi-layer band (2) includes feeding a first band (3) of thermo formable material and at least a second band (4) along respective first and second feeding paths (P1, P2), which extend through a station (10) for joining the first band (3) and the second band (4). The bands (3, 4) are joined, by sealing, in the joining station (10), in order to obtain a third, multi-layer band (2) fed along a third feeding path (P3). Moreover, the method includes another step, during which at least one of the bands (3, 4, 2) undergoes a process for defining a visual, three-dimensional effect image on the band.

Abstract: In a device for cutting single blister packs from a blister band, a cutting member acts in a longitudinal direction with respect to the blister band, along the longitudinal edges thereof, so as to cut side extending strips of the blister band which extend beyond the length of the blister pack being produced. Cut out elements operate in alignment with a cutting line of the cutting member to cut shaped pieces of the blister band, so as to define corner zones of the blister packs. Shearing means operate crosswise to the blister band, in alignment with the corner zones defined by the cut out means, to separate single blister packs. The position of the cutting means and cut out means and/or the shearing means can be adjusted to produce blister packs having different sizes.

Abstract: In a device for cutting single blister packs from a blister band, a cutting member acts in a longitudinal direction with respect to the blister band, along the longitudinal edges thereof, so as to cut side extending strips of the blister band which extend beyond the length of the blister pack being produced. Cut out elements operate in alignment with a cutting line of the cutting member to cut shaped pieces of the blister band, so as to define corner zones of the blister packs. Shearing means operate crosswise to the blister band, in alignment with the corner zones defined by the cut out means, to separate single blister packs. The position of the cutting means and cut out means and/or the shearing means can be adjusted to produce blister packs having different sizes.