The present description discusses apparatuses and methods for applying straps around a bundle of objects by applying a variable force to tension the strap around the bundle of objects and then actuating a series of cams to control the sealing of the strap around the bundle of objects. The apparatus includes a track assembly extending substantially about a strapping station. The track assembly is adapted to receive a strap and to release the strap during a tensioning operation. An accumulator delivers strap to the track assembly. The accumulator has a strap conveyor system that defines a strap path and an accumulator container adjacent to the strap path. Strap can be accumulated in the accumulator container and subsequently delivered to the track assembly.

A strapping tool is disclosed herein. In one or more embodiments, the strapping tool includes a motive power source; and a tensioning assembly operatively coupled to the motive power source, the tensioning assembly including a cam member and at least one tensioning foot member, the cam member operatively coupling the at least one tensioning foot member to the motive power source, and the at least one tensioning foot member of the tensioning assembly configured to apply tension to a piece of strapping while being driven in an oscillatory manner by the motive power source. Also, in one or more embodiments, the strapping tool includes a jaw lifting assembly, the jaw lifting assembly configured to raise the at least one sealing jaw member out of a strapping pass line of the strapping tool so that the piece of strapping is capable of being inserted into the strapping tool.

A lumber stacking and strapping system can provide a single-station solution for both lumber stacking and package strapping. In addition, the package strapping system may apply multiple straps simultaneously to the package. For example, a package stacking and strapping system can provide not only a mechanism for formulating a package of lumber one layer at a time, but also a mechanism for lowering a completed package directly into a compression and strapping station, such as using the lumber stacker package accumulation hoist. The stacking and strapping system can then simultaneously apply strapping around the package in multiple positions along the length of the package, with bottom battens and top corner protectors further supplied and strapped into place as desired. A method for stacking and strapping a package in a single location is also provided.

A strapping tool is disclosed herein. In one or more embodiments, the strapping tool includes a motive power source; and a tensioning assembly operatively coupled to the motive power source, the tensioning assembly including a cam member and at least one tensioning foot member, the cam member operatively coupling the at least one tensioning foot member to the motive power source, and the at least one tensioning foot member of the tensioning assembly configured to apply tension to a piece of strapping while being driven in an oscillatory manner by the motive power source. Also, in one or more embodiments, the strapping tool includes a jaw lifting assembly, the jaw lifting assembly configured to raise the at least one sealing jaw member out of a strapping pass line of the strapping tool so that the piece of strapping is capable of being inserted into the strapping tool.

Strapping tensioning tools are disclosed herein. The disclosed strapping tensioning tools reduce the forces that are required to be applied by an actuator (i.e., a motor) to release the tools from tensioned straps without damaging the straps. According to one aspect of the invention, the forces are reduced by the relative positioning, from front to back, of the cutter, the gripper and the windlass. According to a second aspect of the invention, the forces are reduced by reducing the angle formed between the gripper and the base of the tool. Namely, in one embodiment, the angle of the gripper relative to the strapping surface of the base is approximately 45-55 degrees.

A device for banding products includes a supply mechanism for supplying band material from a supply roll at an unwinding speed, a strap chute for forming a loop in an end portion of the band material around a space for accommodating products at a banding speed, a cutter for cutting off the end portion and a sealer for closing the loop. A buffer mechanism is disposed between the supply mechanism and the strap chute, and includes at least a first and a second assembly of conveyors for conveying the band material from the supply mechanism to the strap chute at a conveying speed and a motor for driving the conveyors. The first and the second assembly of conveyors are driven independently of each other.

A device for banding products includes a supply mechanism for supplying band material from a supply roll, a strap chute for forming a loop in an end portion of the band material around a space for accommodating products, and a cutter for cutting off the end portion and means for closing the loop. The supply mechanism includes conveyors for gripping the band material over part of its length and conveying the same in a guided manner, as well as a motor for driving the conveying means.

A lumber stacking and strapping system can provide a single-station solution for both lumber stacking and package strapping. In addition, the package strapping system may apply multiple straps simultaneously to the package. For example, a package stacking and strapping system can provide not only a mechanism for formulating a package of lumber one layer at a time, but also a mechanism for lowering a completed package directly into a compression and strapping station, such as using the lumber stacker package accumulation hoist. The stacking and strapping system can then simultaneously apply strapping around the package in multiple positions along the length of the package, with bottom battens and top corner protectors further supplied and strapped into place as desired. A method for stacking and strapping a package in a single location is also provided.

A lumber stacking and strapping system can provide a single-station solution for both lumber stacking and package strapping. In addition, the package strapping system may apply multiple straps simultaneously to the package. For example, a package stacking and strapping system can provide not only a mechanism for formulating a package of lumber one layer at a time, but also a mechanism for lowering a completed package directly into a compression and strapping station, such as using the lumber stacker package accumulation hoist. The stacking and strapping system can then simultaneously apply strapping around the package in multiple positions along the length of the package, with bottom battens and top corner protectors further supplied and strapped into place as desired. A method for stacking and strapping a package in a single location is also provided.

A wire reel for rebar tying machine including a reel and a wire wound therearound and an engagement portion at which an earlier-wound part of the wire may be engaged with a later-wound part of the wire by the later-wound part of the wire sinking below the earlier-wound part of the wire. A manufacturing method of a wire reel for rebar tying machine includes: fixing one end of a wire to a reel; winding the wire around the reel by feeding the wire while rotating the reel; and stopping the feeding of the wire while rotating the reel to cause a later-wound part of the wire to sink below an earlier-wound part of the wire such that the later-wound part of the wire engages with the earlier-wound part of the wire.