Machine for stabilising palletised loads includes a functional arrangement, a first movement apparatus generating relative motion about a revolution axis, a second movement apparatus generating relative translation motion of the functional arrangement in a direction parallel to the revolution axis. The functional arrangement includes a support shaft, a motorised drive roller, a contrast roller, and actuator members to create relative movement between the drive roller and the contrast roller in transversal direction with respect to the respective rotation axes between a distanced configuration, in which a gap is defined between the drive roller and the contrast roller to be crossed with clearance by the covering tape unwinding from the reel, and a neared configuration, in which the drive and contrast rollers clamp the covering tape. The support shaft and the contrast and/or drive rollers are mounted on the functional arrangement and oriented in the same direction.

The present invention relates to a method for processing a covering roll sheet (20) of a package, wherein the covering roll sheet (20) covers a package body (51) in the manner of a lid, comprising the steps of: drawing the covering roll sheet (20) off an endless roll (22), tensioning the covering roll sheet (20), determining an offset between a first marking on the covering roll sheet (20) and a second marking (34) on the package body (51), and stretching the covering roll sheet (20) in a manner dependent on the determined offset between the first marking (33) and the second marking (34).

An orbital wrapping apparatus for wrapping a cargo in a stretch film is provided and generally includes a base frame, a circular ring assembly mounted on the base frame, a stretch film dispenser mounted on the circular ring assembly, and a cutting assembly mounted to the base frame and extending through an opening defined by the circular ring assembly. The stretch film dispenser includes a roll of stretch film dispensing the stretch film by rotation of the circular ring assembly, a subframe fixed to the circular ring assembly and the roll of stretch film is mounted on a loading assembly attached to the subframe, and a first feed roller and a second feed roller are mounted to a portion of the subframe that is movable between a first position adjacent to an axis extending through the first and second end caps and a second position spaced further apart from the axis. The cutting assembly is adapted to cut and hold the stretch film.

A packaging system (20) for forming and filling a transportable container (22) of plurality of bulk goods includes a frame (26) having a bottom support (48) and an upper support (32). An upper turntable (34) is rotatably supported within the upper support (32) and a lower turntable (50) is rotatably supported on the bottom support (48). A drive system (58) includes at least one pulley system (62, 64, 66) interconnected to the upper and lower turntables (34, 50) for simultaneously driving and synchronizing rotation of the upper and lower turntables (34, 50) with the at least one pulley system (62, 64, 66). A slip frame former (42) extends downwardly from the upper turntable (34) and a roll of stretch wrap (92) is disposed in overlapping relationship with the slip frame former (42) and the bottom support (48) during simultaneous and synchronized rotation of the turntables (34, 50) with the at least one pulley system (62, 64, 66).

A wrapping machine includes a first moving device for conveying a plurality of separate products on a movement plane along a first direction, a wrapping unit for wrapping film around the products, once stacked and overlapped on a pallet, and a grouping unit that receives the products from the first moving unit, and arranges and ensures the products remain stacked and overlapped along a second direction on the pallet. The machine also includes a supporting platform to support the pallet, which can be moved during the wrapping phase along the second direction, so as to progressively extract and disengage the stacked and overlapped products from the grouping unit to enable them to be wrapped by the film. The grouping unit includes a hopper equipped with a plurality of movable side walls to vary the grouping volume of the hopper.

The invention relates to a device for processing at least one packaging container, in particular for stretching out at least one stretching element of the packaging container, comprising at least one pivoting-arm pair, which comprises a first pivoting arm and a second pivoting arm, which is arranged in a mirror-symmetric manner in relation to the first pivoting arm with respect to an axis of symmetry perpendicular to the at least one linear axis, wherein the first pivoting arm is supported in such a way that the first pivoting arm can be rotated about a first pivoting-arm axis of rotation perpendicular to the axis of symmetry in a first rotational motion and can be displaced in the direction of the at least one linear axis in a first displacement motion and the second pivoting arm is supported in such a way that the second pivoting arm can be rotated about a second pivoting-arm axis of rotation perpendicular to the axis of symmetry in a second rotational motion and can be displaced in the direction of the at least one linear axis in a second displacement motion, and comprising a coupling transmission, which is designed to produce the first rotational motion and the first displacement motion of the first pivoting arm and the second rotational motion and the second displacement motion of the second pivoting arm from at least one first driving motion and one second driving motion, and wherein the first rotational motion and the second rotational motion are synchronous to each other and in opposite directions and the first displacement motion and the second displacement motion are synchronous to each other and in opposite directions.

An apparatus and method for stretch wrapping of a palletized load uses film tension feedback derived from a film tension control load cell to control film dispensation. The load cell measures film tension and the film payout rates is determined by the film tension. Film tension values are used to determine when an out of bounds condition occurs, namely, when a film break has occurred, or when a possible film break is about to occur or when the film has been cut at the end of a wrapping cycle. To prevent film free end entanglement caused by a break, clamps engage the film so the film tail is controlled, eliminating the risk of recoil. The broken film tail may then be quickly and reliably reattached to the rotating load in a desired position.

A method for wrapping a load with a film, strip, band of extensible material comprises: unwinding a film of extensible material from a reel; making a pleat on the film by means of a pleating system; stretching the film by means of a pair of pre-stretching rollers; welding the pleat by means of at least one of the pre-stretching rollers; wrapping the load with the film provided with the pleat.

A method of wrapping a palletized load includes providing an apparatus with a first wrapping system and a second wrapping system, banding a top edge and bottom edge of stretch film from each of the first wrapping system and the second wrapping system, overlapping the stretch film from the first wrapping system with the stretch film from the second wrapping system to create a composite stretch film, and wrapping the composite stretch film around the palletized load. The edges of the stretch film may be banded by passing the stretch film through a set of adjustment arms. The composite stretch film may have a plurality of sections, where each section is separated from adjacent section by a banded border, a first section and third section each has one layer of stretch film, and a second section between the first section and third section has two layers of stretch film.

A system for controlling the temperature of a film before and/or during application, the system including: a heat source for heating a film; and stretch rollers; wherein the heat source heats the film from an ambient temperature to a temperature from about 2 C. to about 40 C. above the ambient temperature, wherein the film is heated prior to or simultaneous to being stretched by the stretch rollers, and wherein the ambient temperature is below 15 C. The preheating system may be used to enhance binding and sealing properties of stretch films used for wrapping palletized products in a reduced temperature environment. Other embodiments of the preheating film system, and methods for its use, are described herein.