Abstract: The invention relates to a wrapping machine and/or top foil wrapping machine, comprising a machine frame supported on a fixed base and comprising upright vertical columns; a lifting frame arranged to be vertically movable upwards and downwards and guided by the vertical columns; a lifting motor for moving the lifting frame, power transmission means for the transmission of power from the lifting motor to produce vertical motion of the lifting frame, said power transmission means comprising elongate flexible drive elements and wheels for the transmission of the power of the lifting motor to the drive elements. The wrapping machine further comprises a foil dispenser, on which a foil web roll can be rotatably supported. The top foil wrapping machine comprises a top foil depositor. The lifting motor is secured to the lifting frame so as to be movable with it. The wheels comprise a drive belt pulley fitted for reeling a flat belt.

Abstract: A method of wrapping an object with wrapping material includes the steps of wrapping a first wrapping film around the object during a first portion of a wrapping cycle; and simultaneously wrapping the first wrapping film and a second wrapping film around the object during a second portion of the wrapping cycle. The simultaneous wrapping includes bringing the second wrapping film into contact with the first wrapping film thereby causing the second wrapping film to adhere to the first wrapping film, wrapping the object with the adhered first and second wrapping films, and severing the second wrapping film, with a severing device, after a predetermined length of the second wrapping film has been wrapped onto the object.

Abstract: A wrapping machine has a film dispensing unit (1), which includes first supporting elements (2) and first deflecting elements (51 . . . 510) for a first wrapping film (4) and second supporting elements (6) and a second deflecting element (9) for a second wrapping film (8). The second deflecting element (9) is movable between a first position (I) and a second position (II) by an actuator (10). In the first position (I), the end of the second wrapping film (8) is in contact with the first wrapping film (4) to cause the wrapping films to adhere to each other during the wrapping process. In the second position (II), the second deflecting element (9) is at a distance from the first wrapping film (4) so that the second wrapping film (9) is clear of contact with and adhesion to the first wrapping film (4).

Abstract: A wrapping machine having a pre-stretching device for pre-stretching a film web drawn from film roll before its being wrapped around an object, said pre-stretching device including a first pre-stretching roller and a second pre-stretching roller, which are tractively coupled via power transmission gears. A first deflecting pinch roller has been fitted to be pressed against the first pre-stretching roller to form a first nip for the film web passed between the first deflecting pinch roller and the first pre-stretching roller. A second deflecting pinch roller has been fitted to be pressed against the second pre-stretching roller to form a second nip for the film web passed between the second deflecting pinch roller and the second pre-stretching roller.

Abstract: A wrapping machine for wrapping a wrapping film around an object. The wrapping machine has a film dispensing unit (1), which comprises first supporting elements (2) for rotatably supporting a first wrapping film reel (3) on the film dispensing unit; first deflecting elements (51 . . . 510), over which the first wrapping film can be passed to the object to be wrapped; second supporting elements (6) for rotatably supporting a second wrapping film reel (7) on the film dispensing unit; a second deflecting element (9), over which the second wrapping film (8) can be passed. The second deflecting element (9) is mounted on the film dispensing unit (1) so as to be movable between a first position (I) and a second position (II). In position (I), the end of the second wrapping film (8) is in contact with the first wrapping film (4) to cause the first and second wrapping films to adhere to each other during the wrapping process in order to bring them one over the other onto the object to be wrapped.

Abstract: The invention relates to a crinkling device comprising a slide rod (16), to which a second crinkling element (15) is fastened. The slide rod is guided in a frame (2) so as to be movable in a substantially vertical direction between a lower position (L), in which the second crinkling element (15) is out of contact with the lower edge (4) of a foil web (1), and an upper position (U), in which the second crinkling element (15) deflects the lower edge (4) of the foil web (1) upwards so as to crinkle it. The slide rod returns to the lower position (L) when not exposed to a force acting in the upward direction. The device further comprises first coupling means (171, 181) for forming a releasable coupling between the slide rod (16) and a first drive element portion (8) when the drive element (7) is running in-a first direction (11) to move the second crinkling element (15) to the upper position (U).

Abstract: The invention relates to a wrapping machine and/or top foil wrapping machine, comprising a machine frame supported on a fixed base and comprising upright vertical columns; a lifting frame arranged to be vertically movable upwards and downwards and guided by the vertical columns; a lifting motor for moving the lifting frame, power transmission means for the transmission of power from the lifting motor to produce vertical motion of the lifting frame, said power transmission means comprising elongate flexible drive elements and wheels for the transmission of the power of the lifting motor to the drive elements. The wrapping machine further comprises a foil dispenser, on which a foil web roll can be rotatably supported. The top foil wrapping machine comprises a top foil depositor. The lifting motor is secured to the lifting frame so as to be movable with it. The wheels comprise a drive belt pulley fitted for reeling a flat belt.

Abstract: The invention also relates to a wrapping machine and/or a top foil wrapping machine and to a method for storing/transporting said machine. The machine comprises a machine frame, which is supported on a fixed base and which comprises upright vertical columns and horizontal cross members connecting the vertical columns to each other. Each vertical column comprises at least two column parts detachably joined together end on end, said column parts comprising a lower column part and an upper column part. Only the lower column parts of the vertical columns are connected to each other by cross members while the upper column parts are not connected to each other.

Abstract: A wrapping machine and a method for wrapping a plastic foil web (F) around an object. A gripping and cutting device (11) is connected to a lifting frame (3) supporting a circular guide track of a foil dispenser (6) so as to be vertically movable with the lifting frame. In the method, the wrapping action is started from a freely chosen point relative to the vertical direction of the object and ended correspondingly at a freely chosen point relative to the vertical direction of the object.

Abstract: A wrapping machine for wrapping a wrapping film around an object. The wrapping machine has a film dispensing unit (1), which comprises first supporting elements (2) for rotatably supporting a first wrapping film reel (3) on the film dispensing unit; first deflecting elements (51 . . . 510), over which the first wrapping film can be passed to the object to be wrapped; second supporting elements (6) for rotatably supporting a second wrapping film reel (7) on the film dispensing unit; a second deflecting element (9), over which the second wrapping film (8) can be passed. The second deflecting element (9) is mounted on the film dispensing unit (1) so as to be movable between a first position (I) and a second position (II). In position (I), the end of the second wrapping film (8) is in contact with the first wrapping film (4) to cause the first and second wrapping films to adhere to each other during the wrapping process in order to bring them one over the other onto the object to be wrapped.

Abstract: A film treatment device has a cutting device (2) for cutting a plastic film web (F). The cutting device (2) has an elongated electric resistor (5) fastened by both ends with fastening elements (3, 4), against which resistor the film web can be pressed and cut via heating of the electric resistor. The cutting device (2) also has a supporting element (6) arranged to support the electric resistor laterally substantially over the entire length of the electric resistor between the fastening elements (3, 4).

Abstract: An apparatus for setting a corner protector on a corner of a package comprises a gripping and positioning device (1) for gripping the corner protector and placing it onto the corner of the package, and a corner protector magazine (2). A storage space (3) in the magazine stores corner protectors arranged as a file. Conveying means (7-10) move the file in the storage space toward the delivery end. A gate (11) has been arranged to be moved between a closed position (II) and an open position (I). An arresting device (13) is provided with a separating tab (14) which moves between an arresting position (A) and a releasing position (B). In the arresting position (A), the separating tab is between the foremost corner protector (41) in the file and the second corner protector (42) next in the file so as to arrest the file of corner protectors while the gate (11) is in the open position (II).

Abstract: An apparatus for setting a corner protector on a corner of a package comprises a gripping and positioning device (1) for gripping the corner protector and placing it onto the corner of the package, and a corner protector magazine (2). A storage space (3) in the magazine stores corner protectors arranged as a file. Conveying means (7-10) move the file in the storage space toward the delivery end. A gate (11) has been arranged to be moved between a closed position (II) and an open position (I). An arresting device (13) is provided with a separating tab (14) which moves between an arresting position (A) and a releasing position (B). In the arresting position (A), the separating tab is between the foremost corner protector (41) in the file and the second corner protector (42) next in the file so as to arrest the file of corner protectors while the gate (11) is in the open position (II).

Abstract: Wrapping apparatus for winding a wrapping foil web (F) around an object (1) includes a foil dispenser (2) arranged to circulate along a ring-like endless track (3) around the object to be packaged. The foil dispenser (2) comprises a frame (4), a detachable and replaceable foil roll (5) mounted on the frame, supporting elements (6) for supporting the foil roll on the frame, and tensioning arrangements (7) for braking foil delivery from the roll and maintaining a predetermined foil tension. The tensioning arrangements (7) comprise a sensor (8) for detecting foil web tension, and an electric motor (9) for driving the foil roll (5). The torque, speed of rotation and direction of rotation of the electric motor is controlled on the basis of foil tension as detected by the sensor.

Abstract: The invention relates to a film treatment device (1) in conjunction with a wrapping apparatus and to a wrapping apparatus provided with a film treatment device. The film treatment device comprises a cutting device (2) for the cutting of a plastic film web (F). The cutting device (2) comprises an elongated electric resistor (5) fastened by both ends with fastening elements (3, 4), against which resistor the film web can be pressed and cut via heating of the electric resistor. The cutting device (2) comprises a supporting element (6) disposed to support the electric resistor laterally substantially over the entire length of the electric resistor between the fastening elements (3, 4). (FIG.

Abstract: A wrapping apparatus, in which the supporting elements (4) supporting a film roll (5) are mounted on the frame (3) of a film dispenser (1) with bearings permitting free rotation so that the film roll supported by them is freely rotatable. The pre-stretching rollers (6, 7) are mutually engaged via a transmission and are likewise mounted on the frame with bearings permitting free rotation. A pendulum roller (9) comprised in the film dispenser and the spring force of a spring (10) applying a load on it have been so adapted that the pendulum roller (9) forms between the second pre-stretching roller (7) and the deflecting roller (11) a bend that functions as a film supply containing a varying amount of film, depending on the prevailing draw of the film to keep the drawing velocity and tension of the film substantially constant at the pre-stretching rollers regardless of the variation in the draw and velocity of the film that is caused by the shape of the article being wrapped.

Abstract: Wrapping apparatus for winding a wrapping foil web (F) around an object (1) to be packaged, said wrapping apparatus comprising a foil dispenser (2) arranged to circulate along a ring-like endless track (3) around the object to be packaged, which foil dispenser (2) comprises a frame (4), a detachable and replaceable foil roll (5) mounted on the frame, supporting elements (6) for supporting the foil roll on the frame, and tensioning means (7) for braking foil delivery from the roll and maintaining a predetermined foil tension. The tensioning means (7) comprise a sensor (8) for detecting foil web tension, and an electric motor (9) for driving the foil roll (5), the torque, speed of rotation and/or direction of rotation of said electric motor being controlled on the basis of foil tension as detected by the sensor.

Abstract: Wrapping apparatus for winding a web of wrapping foil (F) around an object (1). The wrapping apparatus comprises a ring guideway (2) defining a track of variable curvature and foil dispenser (6). The foil dispenser is provided with idler assemblies (10, 11) supporting the foil dispenser as it moves along the ring guideway. In the idler assembly, an inner idler (12) mounted with bearings on the foil dispenser frame (7) leans by its circumference on an inner rolling surface (3) of the guideway (2). A first outer idler (3) leans by its circumference on an outer rolling surface (4). A lateral idler (14) leans on a lateral rolling surface (5). The idler assembly comprises a second outer idler (15), which leans on the outer rolling surface (4) at a distance from the first outer idler (13). A pivoted frame (16) is mounted with bearings on the frame so that it can turn about a swing axis co-incident with the axis of rotation of the inner idler (12).

Abstract: Device for winding a wrapping film around an article (1) to be packaged, the article to be packaged having the shape of a substantially flat rectangle in cross-section. The article to be packaged comprises two substantially parallel broad sides (2, 3) and two narrow sides (4,5), the edges between the broad and narrow sides forming supporting points (6) for the wrapping film. The device comprises a film distributor (7) disposed to travel along a ring-like endless track (8) at a substantially constant speed around the article to be packaged.

Abstract: Method and apparatus for exchanging film rolls during a wrapping operation in a wrapping machine which is arranged to wind wrapping film around the product being packaged, the product being stationary or rotated around a horizontal axis. The wrapping machine includes a film distribution sledge provided with tension rolls mounted on a rotatable wrapping crank. A cassette or the like holding a plurality of new film rolls is provided at a film roll exchange station. A transfer sledge removes an old film roll or bushing from the film distribution sledge and transfers a new film roll or bushing from the cassette into the film distribution sledge. A device is provided at the exchange station for passing an end region of the film of the new film roll over the tension rolls of the film distribution sledge to a grasping member during the film roll exchange operation.