Abstract: Described is a machine for wrapping groups (1) of products in a roll, comprising: a packaging unit (2) positioned above a feed channel (3); a transfer element (5) configured for feeding, in a feed direction (V5), to the packaging unit (2) the groups (1) of products in a roll with a corresponding sheet of wrapping material (6); feed and positioning units (8) configured for feeding the sheet (6) of wrapping material inside the vertical channel (3), in a direction (T6) transversal to the direction (V5) for feeding the group (1) of products; the machine also comprises means (9) for controlled retaining and unwinding of the sheet (6) of wrapping material positioned along the vertical feed channel (3); a first movement unit (10) connected to the controlled retaining and unwinding means (9) and configured to move the controlled retaining and unwinding means (9) from a position of free passage of the sheet (6) of wrapping material to a position for bilateral retaining of the sheet (6) of wrapping material positioned

Abstract: A packaging apparatus (1) for nappies (2) or other soft, flat, folded sanitary articles comprises: packaging arrangement for positioning a plastic film so it is tight against a set (4) of nappies (2); a feeder (6) set up to feed the nappies to the packaging arrangement; at least one comb (10) configured to selectively withdraw groups (8) of nappies from a nappy (2) stacker device (9) and place them on the feeder (6). The packaging arrangement comprises a wrapping machine (3) configured to fold a sheet (5) of the film round the set (4) of nappies (2) and to close it on at least three sides of the set (4) of nappies (2).

Abstract: An apparatus for wrapping batches of products for insertion into a carton includes a lifter for lifting a batch from a first height to a second height at which a pusher pushes the batch into a tunnel toward a loading zone along a direction of movement, a station for feeding wrapping film to a folder that supports and guides the film around the tunnel; a longitudinal sealer configured to join two longitudinal flaps of the film to form a tubular shape; a transverse sealer positioned close to a rear end of the tunnel for joining the top and bottom flaps of the tubular film; and a pair of panels for containing/retaining the batch coming out from the tunnel; the panels being slideable along respective side walls of the tunnel to modify the operating length of the tunnel.

Abstract: Device for distributing products to feed lines, comprising: a plurality of outfeed channels (1) each configured for feeding a succession of products (2) along a first feed direction (D1); the plurality of outfeed channels (1) is positioned at a first level (H1); a plurality of infeed channels (3), configured to receive single or lines of products (2) and feed products (2), along a second feed direction (D3); the plurality of infeed channels (3) is positioned at a higher second level (H3), a plurality of pairs of carriages (4) defining corresponding housing pockets (5); a track (6) configured in the form of a closed, ring-shaped path to define a lower operating section (6a) and an upper operating section (6b) and on which move the plurality of pairs of carriages (4) along a direction (D6) transversal to the first (D1) and second (D3) feed directions; the track (6) is interposed between the plurality of outfeed channels (1) and the plurality of infeed channels (3) in such a way as to position along a lower oper

Abstract: A packaging apparatus (1) for nappies (2) or other soft, flat, folded sanitary articles comprises: packaging arrangement for positioning a plastic film so it is tight against a set (4) of nappies (2); a feeder (6) set up to feed the nappies to the packaging arrangement; at least one comb (10) configured to selectively withdraw groups (8) of nappies from a nappy (2) stacker device (9) and place them on the feeder (6). The packaging arrangement comprises a wrapping machine (3) configured to fold a sheet (5) of the film round the set (4) of nappies (2) and to close it on at least three sides of the set (4) of nappies (2).

Abstract: A traction unit (1), particularly for packaging machines, comprising means for moving at least one grip element (2), which can move along a predefined closed path (3) and has at least two pairs of teeth (4a, 4b) which protrude substantially at right angles from the closed path (3), for the clamping of products (5) to be packaged and their traction along a portion of the closed path (3); the mutual transverse arrangement of the pairs of teeth (4a, 4b) being configurable by means of an adjustment device (6) which is located substantially outside the closed path (3), the movement means being located substantially inside the closed path (3).

Abstract: A traction device (1), particularly for products to be packaged, comprising: at least two grip elements (10a, 10b), which can move along a predefined closed path (2) and can engage products (3) to be packaged, and an apparatus for moving the at least two grip elements (10a, 10b) along the closed path (2). The traction device (1) comprises means for varying the distance between one of the grip elements (10a, 10b) and the other one of the grip elements (10b, 10a), during their movement along the closed path (2).

Abstract: A machine (1) for wrapping bundles (2) of roll products (3), where the products (3) are grouped together in piles (4), comprises a bundle (2) forming line (6), equipped with a chain conveyor (7), and a product (3) feed line (12) that serves the forming line (6); the feed line (12) having an elevator (13) which is equipped with a product (3) supporting platform (14) and which is vertically mobile under the forming line (6) between a lowered position where it receives the products (3) and a raised position where it delivers the products (3) to the forming line (6); a screw mechanism, fixed to a fixed machine mounting structure and screwed on a lead nut placed inside a mounting frame, adjusts the position of the chain conveyor, the pair of pulleys and the pusher rods relative to the raised position of the product supporting platform.

Abstract: In a station for forming a pile of layers of items, a surface receives layers of items to be transferred to a first support plane situated after the receiving surface. The items arranged in layers are moved along the receiving surfaces and the first support plane by driving chains connected by rods set crosswise to the receiving surface and support plane. The support plane is spaced apart from the receiving surface to define a window and a descending ramp is situated below the window. An additional conveyor formed by narrow slats or rolls, is situated at the window and is operated so that one flexible plate moves to cover and uncover the window, so that layers of items are alternately either carried from the receiving surface to the support plane or made to pass through the window and released on the descending ramp. The ramp can change inclination so as to connect the receiving surface to either one or the other of second and third support planes situated below the first support plane.

Abstract: A unit for forming packs of products for a packaging machine comprises at least three feed surfaces (3, 4, 5) for layers of products (2) and a receiving station (6) for the layers of products (2). The receiving station (6) comprises an elevator (7), mobile only between a position for loading the products (2) and a position for releasing the products (2), to transfer the layers of products (2) to a packaging machine (8). The three feed surfaces (3, 4, 5) comprise synchronization means so that they simultaneously release the respective layers of products (2) onto the elevator (7).

Abstract: A machine (1) for wrapping bundles (2) of roll products (3), where the products (3) are grouped together in piles (4) formed from superposed layers (5) of products (3), comprises a bundle (2) forming line (6), equipped with a chain conveyor (7), and a product (3) feed line (12) that serves the forming line (6). The feed line (12) has an elevator (13) which is equipped with a product (3) supporting platform (14) and which is vertically mobile under the forming line (6) between a lowered position where it receives the products (3) and a raised position where it delivers the products (3) to the forming line (6). The machine (1) comprises adjustment means (15) for adjusting the position of the forming line (6) in height relative to the raised position of the product (3) supporting platform (14).

Abstract: A method for producing a pack (1) for groups (2) of rolls of products comprises the following steps: forming of a tube of film (3) around a frame (5) forming a channel (6) for the passage of the product groups (2); creation of a first seal (S1) on the front edges (7) of the film (3); insertion in the channel (6) of product groups (2), fed until they are close to the closed front end (7) of the film (3); further feeding of the product groups (2) with simultaneous feeding of the film (3) and formation of the further portion of the pack (1) beyond the frame (5); creation of a second, longitudinal seal (S2) on the overlapping longitudinal edges of the film (3) simultaneously with the further feed step; creation of a third seal (S3) on the rear edges (11) of the film (3) designed to close the pack (1) at the rear of the product groups (2) bagged; between the step of insertion of product groups (2) in the channel (6) and the further feeding of the product groups (2), there being a step of feeding the film (3) wound

Abstract: In a station for forming a pile of layers of items, a surface receives layers of items to be transferred to a first support plane situated after the receiving surface. The items arranged in layers are moved along the receiving surfaces and the first support plane by driving chains connected by rods set crosswise to the receiving surface and support plane. The support plane is spaced apart from the receiving surface to define a window and a descending ramp is situated below the window. An additional conveyor formed by narrow slats or rolls, is situated at the window and is operated so that one flexible plate moves to cover and uncover the window, so that layers of items are alternately either carried from the receiving surface to the support plane or made to pass through the window and released on the descending ramp. The ramp can change inclination so as to connect the receiving surface to either one or the other of second and third support planes situated below the first support plane.

Abstract: In a device for closing side ends of packages enclosing only one roll or one row of rolls in an automatic packaging machine, operating apparatus are connected to the machine packaging line. A package, partially wrapped by a sheet, is fed to the packaging line in a forward direction, so that only the outer cylindrical surface of the package is touched by the operating apparatus. The operating apparatus translate and rotate the package about an axis, in the forward direction, so that edges of the sheet wrapping the package, during transferring along said packaging line, hit edges of stationary folding apparatus situated beside the packaging line, and become twisted.

Abstract: In a device for closing side ends of packages enclosing only one roll or one row of rolls in an automatic packaging machine, operating means are connected to the machine packaging line. A package, partially wrapped by a sheet, is fed to the packaging line in a forward direction, so that only the outer cylindrical surface of the package is touched by the operating means. The operating means translate and rotate the package about an axis, in the forward direction, so that edges of the sheet wrapping the package, during transferring along said packaging line, hit edges of stationary folding means situated beside the packaging line, and become twisted.

Abstract: A package of rolls obtained by a wrapping machine includes: a group of rolls composed of at least three layers of rolls, situated one over another; a sheet shaped in tubular form for wrapping the group of rolls, with the relative longitudinal edges overlapped and heat-welded, and with the wings of each head of the tubular sheet being folded against the rolls and then stabilized by heat-welding.