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 method of strapping one or more articles with a strap includes the steps of: providing a strapping device including a joining apparatus with a joining jaw and a joining base; placing an end portion of the strap around the joining base such that a fastening loop around the base is formed; joining overlapping first and second strap segments of the fastening loop by the joining apparatus to form a strap joint; placing the strap around one or more articles such that a third strap segment overlaps a segment of the fastening loop; tensioning the strap around the one or more articles; joining the third segment of the strap with the segment of the fastening loop by the joining apparatus; shearing the tensioned strap off from an untensioned bulk portion of the strap; separating the strapping device from the tensioned strap by removing the joining base from the fastening loop.

Strapping devices and methods are provided. The strapping device can include a member. The strapping device can include a first actuator coupled with the member to move the member between a first position and a second position. The strapping device can include a sensor to detect an electrical characteristic of the first actuator and to transmit a signal indicative of the electrical characteristic. The strapping device can include a data processing system. The data processing system can receive the signal and determine the member is in contact with a welding component based on the electrical characteristic. The data processing system can determine the second position of the member based on the member being in contact with the welding component. The data processing system can transmit a control signal to the first actuator and a second actuator to initiate a welding cycle with the member at the second position.

A strapping device includes a handle, a body, and an actuator. The handle includes an input device and a switch, the input device spaced from the switch by a biasing element that applies a bias force to the input device. The input device moves from a first state spaced from the switch to a second state contacting the switch responsive to receiving a force greater than the bias force. A circuit of the switch is closed responsive to the input device moving from the first state to the second state. The switch outputs an actuation signal responsive to the circuit being closed. The body includes a tensioner and a base including a strap receiver opposite the tensioner. The actuator moves the tensioner from a first tensioner position to a second tensioner position further from the strap receiver based on a movement force greater than the bias force.

Strapping devices and methods are provided. The strapping device can include a member. The strapping device can include a first actuator coupled with the member to move the member between a first position and a second position. The strapping device can include a sensor to detect an electrical characteristic of the first actuator and to transmit a signal indicative of the electrical characteristic. The strapping device can include a data processing system. The data processing system can receive the signal and determine the member is in contact with a welding component based on the electrical characteristic. The data processing system can determine the second position of the member based on the member being in contact with the welding component. The data processing system can transmit a control signal to the first actuator and a second actuator to initiate a welding cycle with the member at the second position.

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.

Disclosed is a welding device used for a handheld electric strapping machine, provided with a first motor and a second motor; the first motor is connected to the downward pressing and lifting motion assembly, so as to drive the upper welding member to press downwards and to be lifted upwards; the second motor is connected to the vibration driving assembly, so as to drive the upper welding member to vibrate, achieving heating and welding of packaging straps; the downward pressing and lifting motion assembly is also provided with a limiting member, the limiting member cooperating with a fixing structure on a handheld electric strapping machine and being used for preventing the upper welding member from going beyond the limit when the upper welding member descends to be in place. The welding device uses two motors for respectively and independently driving an upper welding plate to perform downward pressing and welding, thus facilitating manufacturing. After the downward pressing operation is finished, the limiting structure can be automatically locked by using counteracting force, thus ensuring that the upper welding plate is not lifted and loosened when the downward pressing and lifting operating motor is not operating, and ensuring a reliable process of welding.