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.

A method, apparatus and program product are provided that utilize wrap profiles that specify controlled wrap cycle interruptions to handle specialized load requirements for loads to be wrapped by a stretch wrapping machine. Also provided is a method of creating wrap profiles, and a plurality of wrap profiles are stored in a database.

A stretch film dispenser includes a frame. The frame has a top seat and a bottom seat. The top seat and the bottom seat are jointly equipped with a film mounting unit and a film dispensing unit. The film dispensing unit includes a first roller and a second roller. The first roller and the second roller have a strip hole. The strip hole is located between the first roller and the second roller. Through the strip hole of the first roller and the second roller, the front end of a film can pass through the strip hole between the first roller and the second roller easily and quickly, and the film is pulled out along the direction of the first roller, thereby achieving the effect of easy and convenient installation of the film.

A control system for a wrapping apparatus may include a packaging material dispenser configured to dispense packaging material for wrapping a load. The control system may also include at least one sensor assembly configured to generate a signal based on instantaneous demand for packaging material at the load. The control system may further include a controller configured to control operation of the packaging material dispenser based at least in part on the signal.

Control of a wrapping apparatus is facilitated by enabling an operator to input a load containment force requirement and/or a minimum number of layers of packaging material to be applied to a load, with a wrap control system automatically determining wrap force and other parameters required to meet user input requirements and/or parameters to minimize the expertise required of an operator and to provide more consistent and reliable wrapping of loads. In addition, a wrapping apparatus may be controlled to apply at least a minimum number of layers of packaging material to a load throughout a contiguous region thereof.

A wrapping machine for wrapping a product with a plastic film includes a frame, a supporting ring rotatably supported by the frame and rotated around a wrapping axis by a driving device, an unwinding unit fixed to the supporting ring and supporting a reel of film, pre-stretching rollers rotating about longitudinal axes and cooperating with each other to unwind and stretch the film, and a pre-stretching motor fixed to the frame and coupled to, and arranged to rotate, the pre-stretching rollers through a respective transmission assembly. The transmission assembly includes a driving ring rotatably supported by the frame and rotated about the wrapping axis by the pre-stretching motor through a friction roller, and a driving belt wound around, and rotated by, the driving ring and coupled to one pre-stretching roller to rotate the pre-stretching rollers when the driving ring is rotated by the pre-stretching motor.

An apparatus for wrapping a load may include a film dispenser for dispensing a film web including a film dispensing drive. The apparatus may also include a rotational drive system for providing relative rotation between the load and the dispenser during a wrapping cycle. The apparatus may further include a controller configured to operatively couple the film dispensing drive and the rotational drive system such that, for any portion of a revolution of the film dispenser relative to the load during the wrapping cycle, the film dispenser dispenses a selected length of the film web corresponding to the portion of the revolution.

A standing tree baling apparatus includes a main frame and a boom pivotably connected to the main frame. The boom has a first end and a second end. A boom lifter is connected between the main frame and the boom for raising and lowering the boom about a pivot joint at the first end of the boom. A rotation arm has a first arm end and a second arm end. The rotation arm is pivotably connected to the second end of the boom at the first arm end. A driver pivots the arm relative to the boom. A compression ring is sized for loosely encircling a trunk of a standing tree and adapted for forcibly moving a succession of branches of the tree non-destructively inward toward the trunk of the tree as the ring is raised about the tree to facilitate baling of the tree with rope line. The ring is connected to the second arm end.

A locking device associable to a wrapping machine for locking in a defined locked position a wheeled load to be wrapped with a plastics film, the locking device including a first element elongated along a first direction and arranged to rest on, and be fixed to, a supporting plane of the wrapping machine, and a second element connected to the first element. The second element is provided with a seat open on the supporting plane and includes an inlet opening for allowing a first wheel of the wheeled load be inserted into, or disengaged from, the seat along an insertion direction, and a recess arranged to be engaged by the first wheel in the locked position so as to prevent the first wheel from moving along the first direction and along a second direction, which is substantially orthogonal to the first direction, and from disengaging from the seat.

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.