Abstract:
A device for applying adhesive material to sheets of packing material, wherein the locally-grooved cylindrical outer surface of a gumming roller is coated with adhesive material by a transfer roller partially immersed in a mass of adhesive material in the form of liquid or paste housed inside a tank.The transfer roller is smaller in diameter than the gumming roller, and presents a cylindrical outer surface which is maintained contacting, along its generating line, the partially grooved outer surface of the gumming roller by means of a radial thrust device designed to ensure substantially evenly distributed contact pressure along the aforementioned generating line.
Abstract:
A method of changing a first out-running strip with a new strip on a manufacturing machine having a traction device for feeding the first strip to the machine at a first predetermined speed, and a strip guide located upstream from the traction device; which method provides for stages consisting in cutting the first strip; activating a push device upon the trailing end of the first strip passing through a given point along the strip guide, the push device being engaged by the new strip for feeding the same along the strip guide at a second predetermined speed; controlling the second speed as a function of the first speed, so that the leading portion of the new strip overlaps a corresponding trailing portion of the first strip along the strip guide; and de-activating the push device subsequent to engagement of the new strip by the traction device.
Abstract:
A machine for packaging fiber material comprises feed means (2) supplying predetermined portions of fiber material (3) in an ordered succession, compacting means (4) by which the portions of fiber material (3) are compacted initially, a feed station (8) to which packs (9) are supplied for filling with the fiber material (3), a filling station (D) at which the fiber material (3) is inserted into the packs (9), and a closure station (E) located downstream of the filling station (D), at which the filled packs (9) are sealed. The machine further comprises fiber material (3) compressing and forming means (7) by which each of the portions of fiber material (3) is maintained in a state of compression downstream of the compacting means (4) for a prescribed interval of time, in such a way that the selfsame portion of fiber material (3) is caused to assume a compact geometry of tablet-like form prior to its insertion into the respective pack (9).
Abstract:
Pouches (2) of cohesionless material, typically a smokeless tobacco product, are manufactured on a machine equipped with feed components (101) by which the material is supplied to a conveyor (4) at a delivery station (8), then transferred by the conveyor (4) from this station (8) to a transfer station (9) where a forcing mechanism (14) directs measured portions (100) of the material from the conveyor into at least one duct (12) connecting with a form-fill-and-seal wrapping station (10) where the portions (100) are enclosed in a continuous succession (21) of pouches (2). Before being separated one from the next at a downstream cutting station (23), the single pouches (2) pass through an in-line quality control station (105) at which their weight is checked individually.
Abstract:
Pouches (2) of cohesionless material, typically a smokeless tobacco product, are manufactured by conveying portions of the tobacco initially on a dispensing disc (5a) with cavities (7) from a delivery station (8) to a transfer station (9), where each portion of tobacco is then removed forcibly from the relative cavity by an ejection system (14) and directed into a duct (12) connecting with a wrapping station (10) at which the pouches (2) are formed, filled and sealed; the removal and transfer of each portion from the cavity (7) of the disc (5a) into the duct (12) is controlled in such a way as to displace the material by degrees and ensure its smooth passage toward the wrapping station.
Abstract:
A method of forming and filling containers (2) wherein a first step consists in forming a tubular body (3) of which a first end is joined to a rigid element (6) with an opening (7) capable by means of a relative closure element (8), and a second end or bottom (12) is sealed by a weld line (13) extending transversely to the axis (A) of the tubular body (3) and presents two flaps (15) extending from the lateral surface (4) of the tubular body (3), and a second step consists in flattening and sealing the flaps (15) against the bottom (12); the method also includes a step of injecting a sterilizing liquid into each container (2), effected between the first step and the second step, and a step of filling the container (2) subsequent to the sterilizing step.
Abstract:
A rotary assembly, for FFS (Form, Fill and Seal) machines, for ultrasound sealing a continuous tubular strip housing an orderly succession of products and travelling along a feed path extending through the sealing station; the rotary assembly having two rotors, which are located on opposite sides of the feed path, and rotate in opposite directions about respective axes; and at least one of the two rotors being fitted with at least one ultrasound sealing device, which cooperates at the sealing station with a corresponding anvil fitted to the other rotor with the interposition of elastic members.
Abstract:
A container (1) for liquid products fashioned from at least one blank of multi-layer paper material comprises an essentially parallelepiped body (2) with four side walls (4, 5, 6, 7), and a top section (9) presenting four angled faces (4a, 5a, 6a, 7a) that converge toward a tubular element (17) providing a spout (15) from which to pour the liquid contents. The tubular element (17) also presents four tags (24) designed to interact with the top section (9); the tags function as anchors insertable between and weldable together with the corresponding edges (11) of the blank to form joined areas (12) serving as both closure and reinforcing elements in the finished container (1).