Provided is an inner module structure of an auto strapping packaging tool including a tension module in which first power generated by a first dedicated motor disposed at a rear side is transmitted to a front side to provide a tensile force to a packaging plastic band, and a welding module which is disposed at one side of the tension module, and in which a gripper unit is opened or closed by second-1 power due to axial rotation in a forward direction of a second dedicated motor disposed at a rear side, and the gripper unit linearly reciprocates by second-2 power due to axial rotation in a reverse direction of the second dedicated motor to provide a friction force to the plastic band to which the tensile force is applied through the tension module.

A relaxation device of a cardboard strapping machine includes a connector being movably extended into a top holder. When the connector retreats from a connective channel in the top holder, a middle pressure lever descends to loosen the overlapping straps, so that the overlapping strap is not pulled by the retracted connector to cause misalignment, the adhesion area is complete, and its adhesion strength is good. In contrast, a cardboard pile cannot be fastened by the strap, which is deformed by a drag force when a counter-pressure plate is pulled back, through a traditional strapping machine for bundling cardboards. Furthermore, another forcibly pull-off implementation will weaken the connection strength at an overlapping portion of a strap head and a strap tail of the strap.

A relaxation device of a cardboard strapping machine includes a connector being movably extended into a top holder. When the connector retreats from a connective channel in the top holder, a middle pressure lever descends to loosen the overlapping straps, so that the overlapping strap is not pulled by the retracted connector to cause misalignment, the adhesion area is complete, and its adhesion strength is good. In contrast, a cardboard pile cannot be fastened by the strap, which is deformed by a drag force when a counter-pressure plate is pulled back, through a traditional strapping machine for bundling cardboards. Furthermore, another forcibly pull-off implementation will weaken the connection strength at an overlapping portion of a strap head and a strap tail of the strap.

A strapping apparatus for strapping articles with a strapping band having a tensioning device for imparting a band tension to a loop of the strapping band, the tensioning device including a driveable tensioning element provided for engaging the strapping band to impart a band tension. The strapping apparatus including a connecting device for generating a permanent connection, in particular a welded connection, at two regions, situated one above the other, of the loop of the strapping band. The strapping apparatus is configured to achieve the release of the tensioning element from the strapping band reliably to avoid or reduce adverse characteristics attributed to the release of the tensioning device from the band.

A strapping tool is disclosed herein. In one or more embodiments, the strapping tool includes a motive power source and a sealing assembly. The sealing assembly includes a first punch and a die, the first punch and die configured to crimp or cut a notch in a strapping seal member and/or a piece of strapping so as to secure the piece of strapping around a package or bundle of items.

A strapping machine includes a driver, first and second power output units, and a switching unit. The first power output unit includes a first drive shaft being co-rotatable with a main shaft of the driver only when the main shaft rotates in a first rotational direction via a first one-way bearing for driving the switching unit, and for clamping, hot-melting and cutting a strap. The second power output unit includes a second drive shaft being co-rotatable with the main shaft only when the main shaft rotates in a second rotational direction via a second one-way bearing, and a plurality of output gear trains being engagable with the second drive shaft via the switching unit for feeding, retracting and tensioning the strap.

A strapping machine includes a driver, first and second power output units, and a switching unit. The first power output unit includes a first drive shaft being co-rotatable with a main shaft of the driver only when the main shaft rotates in a first rotational direction via a first one-way bearing for driving the switching unit, and for clamping, hot-melting and cutting a strap. The second power output unit includes a second drive shaft being co-rotatable with the main shaft only when the main shaft rotates in a second rotational direction via a second one-way bearing, and a plurality of output gear trains being engagable with the second drive shaft via the switching unit for feeding, retracting and tensioning the strap.

Various embodiments of the present disclosure provide a mobile strapping device for strapping packaged products using a loop of wrapping strap. The strapping device includes a tensioning device for applying tension to the strap and a connecting device for connecting two overlapping portions of the strap. The tensioning device includes a rotatable tensioning wheel and a tensioning plate. The tensioning wheel is supported by a rocker that is pivotable to change a distance separating the tensioning wheel and the tensioning plate. The mobile strapping device includes a motor that is operably connectable to the rocker or the tensioning wheel such that the motor causes pivoting of the rocker or rotation of the tensioning wheel when operating in a first direction of rotation. In various embodiments, gearing, including a plurality of planetary gear sets, is used to operatively connect the motor to the rocker and the tensioning wheel.

Various embodiments of the present disclosure provide a mobile strapping device for strapping packaged products using a loop of wrapping strap. The strapping device includes a tensioning device for applying tension to the strap and a connecting device for connecting two overlapping portions of the strap. The tensioning device includes a rotatable tensioning wheel and a tensioning plate. The tensioning wheel is supported by a rocker that is pivotable to change a distance separating the tensioning wheel and the tensioning plate. The mobile strapping device includes a motor that is operably connectable to the rocker or the tensioning wheel such that the motor causes pivoting of the rocker or rotation of the tensioning wheel when operating in a first direction of rotation. In various embodiments, gearing, including a plurality of planetary gear sets, is used to operatively connect the motor to the rocker and the tensioning wheel.

Various embodiments of the present disclosure provide a strapping machine welding head with a beveled counter-pressure plate.