One embodiment of the present invention includes an apparatus for securing a wrapping material around an item, such as a baled agricultural item, the apparatus including a main plate and at least one projection, the projection including a heating element and a height adjustment mechanism, wherein the height adjustment mechanism controls a force applied to the wrapping material by the projection and provides a force for moving the projection.

The invention is a device for welding two overlapping film sections situated on one side of a goods stack. The device includes a welding bar with a welding surface oriented in the direction of the film sections to be welded. The spacing between the welding bar and the film sections is reducible. The welding surface is elastically deformable into a concave course and/or to a convex course between its two ends. At least one displacing device adjusts the course of the welding surface to a concave and/or to a convex course. The displacing device displaces welding bar. A control unit of the welding bar individually controllable, such that the curvature of the welding bar is adjustable to the contour of the side of the goods stack in the region of the film sections to be welded with one another for the subsequent welding of the overlapping film sections.

A cost-effective system and method of sealing that may be a pack adapted to be distributed from an aircraft in the event of a natural, military, political, or other disaster is described herein. The system comprises a conveyor belt and a sealing mechanism positioned above the conveyor belt. The sealing mechanism is comprised of a motor, a drive shaft rotated by the motor, an eccentric hub coupled to the drive shaft, a drive link coupled to the eccentric hub and adapted to translate rotational motion into liner motion, a pivot arm coupled to the drive link, and a sealing bar coupled to the pivot arm and adapted to seal the packages as the packages pass under the sealing mechanism.

A cost-effective system and method of sealing that may be a pack adapted to be distributed from an aircraft in the event of a natural, military, political, or other disaster is described herein. The system comprises a conveyor belt and a sealing mechanism positioned above the conveyor belt. The sealing mechanism is comprised of a motor, a drive shaft rotated by the motor, an eccentric hub coupled to the drive shaft, a drive link coupled to the eccentric hub and adapted to translate rotational motion into liner motion, a pivot arm coupled to the drive link, and a sealing bar coupled to the pivot arm and adapted to seal the packages as the packages pass under the sealing mechanism.

A heating device for heating a forming film has a first tool with a first heating plate, which is mounted by way of a plurality of first spring elements, and a second tool with a second heating plate, which is mounted by way of a plurality of second spring elements. The spring elements of the plurality of first spring elements and of the plurality of second spring elements are spaced apart from each other in at least one direction perpendicular to their spring axis.

A heating device for heating a forming film has a first tool with a first heating plate, which is mounted by way of a plurality of first spring elements, and a second tool with a second heating plate, which is mounted by way of a plurality of second spring elements. The spring elements of the plurality of first spring elements and of the plurality of second spring elements are spaced apart from each other in at least one direction perpendicular to their spring axis.