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 wrapping machine comprising a base and a wrapping arm connected to the base and configured to be movable relative to the base. The wrapping arm includes a carriage vertically movable on the wrapping arm, with the carriage having a roll of wrap film. The wrapping machine also includes a bumper assembly movable with the wrapping arm. The bumper assembly includes a bumper and an actuator, wherein engagement of the bumper with an external object will actuate the actuator to stop movement of the wrapping arm about the product. The wrapping arm can include side tubes connected by a connection tube, with the side tubes forming a link recess between the side tubes. Each of the side tubes includes an exteriorly facing slot, with the carriage riding on the side tubes along the slot. A link moves within the link recess to move the carriage.

A method, apparatus and program product may utilize packaging material quality compensation to sense changes in certain characteristics of a packaging material that can be associated with increased risks of film breaks, and automatically make certain changes in machine settings to mitigate the impact of those enhanced risks.

Control of a load wrapping apparatus may be based at least in part on packaging material grading and/or factory profiles.

A machine for stabilising palletised loads including an apparatus having a reel of covering tape, a gripping device to take a first end of the tape of the reel and make it integral with the load, a first movement apparatus to generate relative revolution of the apparatus around the load about a predetermined revolution axis, a second movement apparatus to generate relative translation motion of the apparatus with respect to the load in a direction parallel to the revolution direction, a cutting device placed in the apparatus to separate the tape from the reel, and a fixing device to fix a second end of the tape to the load. The apparatus also includes a tensioning fin configured to rotate around an articulation axis parallel to the reel axis and having a rectilinear end border, distal of and extending parallel to the articulation axis and configured to stay in contact with a longitudinal edge of the tape unwinding from the reel, and a spring acting on the fin to push the end border against the longitudinal edge of the tape.

A method, apparatus and program product may determine load stability for a load to be wrapped based upon sensing the response or reaction of the load to a disturbance applied to the load, e.g., through intentionally moving, shaking, tilting, pushing, impacting or otherwise applying an input force to the load and sensing the response using one or more sensors. The sensed response may then be used to determine a load stability parameter that may be used in the control of a load wrapping apparatus when wrapping the load.

A system includes a wrapping machine for dispensing film to wrap a load disposed on a pallet, a plurality of sensors configured to detect operation of the machine, and a controller operably and communicatively connected with the sensors. The controller is configured to establish desired values of operating parameters of the machine, the parameters including a wrap pattern, weight of the film, a number of revolutions, a percent of stretch of the film, and a tension of film, during operation of the machine, monitor actual values of the operating parameters using data from the sensors, and in response to a difference between the desired values and the actual values being greater than a threshold, issue a command to adjust operation of the machine such that the difference is less than the threshold.

Control of a load wrapping apparatus may be based at least in part on packaging material grading and/or factory profiles.

A method, apparatus and program product control a dispense rate of a packaging material dispenser of a stretch wrapping apparatus by utilizing a combination of a sensed rate of packaging material exiting the dispenser and a predicted geometric relationship between the packaging material dispenser and the load.

An apparatus and method for wrapping a palletized load are provided. The apparatus preferably includes a film dispenser for dispensing a film web, at least one guide rollers configured to engage the width of the film web, and at least one roping element. The at least one roping element may be a cable rolling roper configured to roll a portion of the film web into a rolled cable of film. The apparatus may also include means for providing relative rotation between the load and the dispenser to wrap a roped portion of the film web around a base of the load/top portion of a pallet supporting the load.