A strapping machine may include a strap guidance frame having a strap guidance channel and a plurality of closure elements, which may be arranged in a distributed manner over the length of the channel and may be movable from a position closing the channel into a position opening the channel. The closure elements may be fixable in the position closing the channel by means of a closure force that is generated by a magnetic closure device. The wear of the closing elements of the strapping machine may be reduced compared to known strapping machines. The magnetic closure device may have a displacement means for displacing at least part of the magnetic closure device so that the closure force is cancelled or an opening force directed counter to the closure force is generated.

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 sealing tool for forming a joint in a seal positioned on overlying courses of strap includes a body, a motor and drive train housed, at least in part, in the body, a power supply and a sealing assembly mounted to the body. The sealing assembly is operably coupled to the motor. The sealing assembly includes at least one jaw having a pair of opposing jaw elements. Each jaw element has two edges for cutting into the seal and the courses of strap and forming a bent tab. The jaw element edges are configured to cut into the seal and the courses of strap material at different distances into a width of the seal and strap material. A method for forming seal and a seal formed by the tool and method are disclosed.

A tool for sealing overlying courses of a strap that includes a gripping unit, a power supply unit detachably affixed to one end of the gripping unit, and a motor in the gripping unit. A cam is coupled to the motor and a notching unit is coupled to the cam by a plurality of linkages.

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.

Disclosed is a method for arranging an edge-protection device on a package. For this purpose, an arranging device is moved from a starting position in the direction of the package. The package edge is sensed by way of a first or a second sensor. Which sensor is to be used is determined by a controller. To this end, the latter checks whether one of the sensors is arranged above the package top side. Also disclosed is an arranging device, which is used in the abovementioned method.

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

A strapping machine may include a strap guidance frame having a strap guidance channel and a plurality of closure elements, which may be arranged in a distributed manner over the length of the channel and may be movable from a position closing the channel into a position opening the channel. The closure elements may be fixable in the position closing the channel by means of a closure force that is generated by a magnetic closure device. The wear of the closing elements of the strapping machine may be reduced compared to known strapping machines. The magnetic closure device may have a displacement means for displacing at least part of the magnetic closure device so that the closure force is cancelled or an opening force directed counter to the closure force is generated.