A product packaging machine with extendible film is provided with a distributing unit arranged for dispensing a portion of said continuous extendible film and a rear gripper unit arranged for cooperating with said distributing unit to spread said portion of said extendible film along an operating direction in a wrapping zone inside the packaging machine and further comprises two side gripper units that are movable towards and away from one another along a direction that is transverse to Operating direction to grasp the extendible film laterally and arrange the extendible film below a product to be wrapped, each of said side gripper units comprising a plurality of grippers, each gripper having an upper jaw and a lower jaw, in which at least either said upper jaw or said lower jaw comprises a contact surface arranged for interacting with the extendible film and having a width that is greater than 50 mm measured along the operating direction.

An orbital wrapping apparatus for wrapping a cargo in a stretch film comprises a base frame, a circular ring assembly mounted on the base frame and rotatable with respect to the base frame about an axis of rotation, a stretch film dispenser mounted on the circular ring assembly and rotatable with the circular ring assembly about the axis of rotation, and a cutting assembly mounted to the base frame and extending through an opening defined by the circular ring assembly. The stretch film dispenser has a roll of stretch film dispensing the stretch film by rotation of the circular ring assembly. The cutting assembly is adapted to cut and hold the stretch film.

A cutting unit in a packaging machine for separating a series of finished packages containing a predetermined number of products from a continuous packaging or bundle advancing on a conveyor, comprising a frame, which supports a pair of side cutting blades and a pair of upper cutting and lower cutting blades arranged facing four sides of the continuous bundle, wherein the two pairs of blades can be alternately moved forward and backward between a rest position separated from the continuous bundle, and an engagement position on the continuous bundle containing groups of the products arranged on two flanked rows and wrapped in a film of extendable plastic material, each pair of blades being driven in an alternating forward and backward movement for engagement with and disengagement from the continuous bundle by a double crank actuated by a single motor.

An orbital stretch wrapping apparatus is provided and includes a base frame, a circular ring mounted on the base frame and rotatable with respect to the base frame about an axis of rotation, a stretch film dispenser mounted on the circular ring and rotatable with the circular ring about the axis of rotation, the stretch film dispenser having a subframe fixed to the circular ring, a roll of stretch film mounted to the subframe and rotatable with respect to the subframe, a first feed roller mounted to the subframe and rotatable with respect to the subframe, a second feed roller mounted to the subframe and rotatable with respect to the subframe, and a brake member connected to the first feed roller and the second feed roller.

A wrapping mechanism protection device which is adapted and configured to prevent a dispensed wrapping film to interface with crop debris of hay, straw, corn straw, etc. extending from a formed bale when the bale is being ready to be wrapped is disclosed. More particularly, the present disclosure describes a film-carrying device which comprises a film-carrying main frame, a spool holder rotatably mounted on the film-carrying main frame for mounting a spool of the wrapping film thereon, and a wrapping mechanism protection device extending from the film-carrying main frame and being configured to prevent the bale received in the frame to interface with the wrapping film when the bale is being wrapped.

A cutting unit in a packaging machine for separating a series of finished packages containing a predetermined number of products from a continuous packaging or bundle advancing on a conveyor, comprising a frame, which supports a pair of side cutting blades and a pair of upper cutting and lower cutting blades arranged facing four sides of the continuous bundle, wherein the two pairs of blades can be alternately moved forward and backward between a rest position separated from the continuous bundle, and an engagement position on the continuous bundle containing groups of the products arranged on two flanked rows and wrapped in a film of extendable plastic material, each pair of blades being driven in an alternating forward and backward movement for engagement with and disengagement from the continuous bundle by a double crank actuated by a single motor.

A cutting method in a packaging machine using extensible film includes feeding products, wound in a continuous packaging or in a bundle of products, to a cutting unit; cutting the continuous packaging into finished groups of products using a movable cutting device that advances with the packaging to be cut and makes a transversal cut along the perimeter of the packaging; and bringing the movable cutting device back and performing a new cutting step simultaneously in two points of the packaging spaced from each other, with two vertical sections cut at a first point and two horizontal sections are cut at a second point to create a finished packaging. The packaging machine includes a cutting device, a slide moving forward and backward, and a side cutting device and an upper and lower cutting device spaced apart and acting simultaneously on the packaging to cut in two points vertically and horizontally.

Various embodiments of the present disclosure provide a stretch-wrapping machine with self-adjusting pinch rollers configured to reorient themselves to compensate for misalignment relative to their respective pre-stretch rollers. This ensures the pinch rollers press the entire width of the film against their respective pre-stretch rollers as the film is drawn through the rollers.

The invention relates to a machine for packaging piece good combinations with a transport device which transports a plurality of piece goods in a predetermined transport direction, and with a first wrapping device which is suitable and intended for wrapping the piece goods with a film element, wherein this first wrapping device has a dispensing unit revolving around the piece goods, and wherein the piece goods can be delivered to the first wrapping device in order be wrapped by the film element, According to the invention a mass balancing element likewise arranged revolving around the piece goods is associated with the dispensing unit.

A module builder includes a wrap floor system including a wrap floor belt wrapped around a front belt sheave and a first drive system coupled to the wrap floor system. The first drive system includes a main drive belt coupled to a rear belt sheave and the front belt sheave, wherein in an engagement mode of operation the main drive belt is tensioned to rotate the rear belt sheave, and in a disengagement mode of operation the main drive belt loses tension to cease rotation of the rear belt sheave. The builder includes a second drive system coupled to a baler belt to drive the baler belt into a module forming chamber. The first drive system further includes one or more of a rear lower gate roller, friction wheel, wrap box roller, electric clutch, or motor to engage and drive the main drive belt.