The present application relates to a roll replacing device and a tab welding apparatus. The roll replacing device includes an unwinding mechanism, a first fixing mechanism, a second fixing mechanism, a cutting mechanism, and a strip connection mechanism; wherein the first fixing mechanism is capable of following a sliding bracket to move along a first direction until a spare material strip fixed by the first fixing mechanism and a working material strip fixed by the second fixing mechanism are aligned at a strip connection station, and allows the strip connection mechanism to connect the working material strip and the spare material strip which are aligned at the strip connection station.

Printer spindle assembly is provided including media spindle having first end and second end, a commutator disposed circumferentially at first end, at least two brushes in electrical contact with commutator and connected to voltage source, a plurality of electrically conductive springs serially disposed on media spindle in electrical communication with commutator, and a continuous electrically conductive path formed of electrically resistive material disposed along longitudinal axis of media spindle and configured to be in electrical contact with first spring end of one or more electrically conductive springs in the compressed state to form series circuit. Voltage source, brushes, and commutator form closed electrical circuit. Each electrically conductive spring is configured to be in uncompressed state in absence of media on media spindle and one or more of electrically conductive springs is configured to be in compressed state in presence of media on media spindle.

Printer spindle assembly is provided including media spindle having first end and second end, a commutator disposed circumferentially at first end, at least two brushes in electrical contact with commutator and connected to voltage source, a plurality of electrically conductive springs serially disposed on media spindle in electrical communication with commutator, and a continuous electrically conductive path formed of electrically resistive material disposed along longitudinal axis of media spindle and configured to be in electrical contact with first spring end of one or more electrically conductive springs in the compressed state to form series circuit. Voltage source, brushes, and commutator form closed electrical circuit. Each electrically conductive spring is configured to be in uncompressed state in absence of media on media spindle and one or more of electrically conductive springs is configured to be in compressed state in presence of media on media spindle.

In accordance with an embodiment, a label processing apparatus comprises a conveyance mechanism, a radio wave shielding mechanism, an antenna and a reader/writer. The conveyance mechanism conveys a paper on which a a plurality of s are attached with a RFID tag are arranged. The radio wave shielding mechanism includes an opening moving in synchronization with each RFID tag arranged on the paper conveyed by the conveyance mechanism. The antenna receives and transmits a radio wave for communication via the opening while the opening moves in synchronization with the RFID tag. The reader/writer communicates with the RFID tag of the paper conveyed by the conveyance mechanism via the antenna.

A spindle mechanism of a winding machine includes a spindle box provided with a mounting hole; bearings respectively arranged at both ends of the mounting hole of the spindle box to form a front bearing and a rear bearing, the bearing comprises an inner ring and an outer ring; and a spindle, the spindle is arranged to pass through the mounting hole of the spindle box and is rotatably positioned on the spindle box by means of the bearings, and the number of the front bearings is the same as the number of the rear bearings, and the outer ring of at least one of the front bearing and the rear bearing is not restricted in an axial direction so as to form a free end.

In accordance with an embodiment, a label processing apparatus comprises a conveyance mechanism, a radio wave shielding mechanism, an antenna and a reader/writer. The conveyance mechanism conveys a paper on which a a plurality of s are attached with a RFID tag are arranged. The radio wave shielding mechanism includes an opening moving in synchronization with each RFID tag arranged on the paper conveyed by the conveyance mechanism. The antenna receives and transmits a radio wave for communication via the opening while the opening moves in synchronization with the RFID tag. The reader/writer communicates with the RFID tag of the paper conveyed by the conveyance mechanism via the antenna.

A streamer dispenser for dispensing crepe paper includes a housing. The housing has a front, a back and a sidewall extending from the back to the front defining an internal space. The front is open. A divider is coupled to the housing and is positioned in the internal space, defining a pair of compartments. A pair of slots is positioned through the sidewall of the housing. Each slot extends to a respective compartment. The compartments are positioned in the housing such that each compartment is configured for insertion of a respective roll of crepe paper. The slots are positioned in the housing such that each slot is configured for insertion of a free end of the respective roll of crepe paper. The free ends are positioned outside of the housing, such that the crepe paper is dispensable from the housing.

A dispenser for wrapping paper that allows a user to store a number of rolls of paper, ribbons and tape on the device. A sheet of the desired paper can be pulled from a roll and cut, using a sheet cutter installed on the device. Spools of ribbon are installed on the device for ready dispensing. A tape dispenser is also installed with a sawtooth cutter for quick and easy tape dispensing. The device is designed for quick and easy replacement of paper rolls, spools of ribbon and tape. Finally, when the projects are finished, the device can be stored in a closet by hanging it on a bar using a hook provided on the device. This lets the device hang at a height that makes it convenient to retrieve and store as needed.

A temporary tape removal apparatus that includes: a chassis having fixed and guiding wheels; a boom arm extending outward from the chassis and being movable between up and down and side to side positions; a spool assembly including a rotatable spool for winding used temporary tape thereon mounted on the boom arm; and controllable drive means to rotate the rotatable spool. Using the apparatus to remove lane marking tape from pavements involves moving the temporary tape removal apparatus along a pavement having a length of lane marking tape thereon, and pulling the lane marking tape off the pavement by winding the tape onto the spool. Single lines of tape can be removed and multiple lines of tape can simultaneously be removed. The removed tape is spooled on disposable cores for disposal.

An upright cutter for packing materials includes a base, a support device, and a cutting device. The base includes an upright post. The support device has a shaft. The shaft is vertically fixed to the upright post. The cutting device includes a pole. The pole is pivotally connected to the upright post. The pole is connected with a transverse rod. The transverse rod is parallel to the shaft. The transverse rod is provided with a cutting member which is movable axially along the transversely rod. Two sides of the cutting member are provided with blades, respectively. The pole can be pivoted, so that the transverse rod is adjusted to the most appropriate position. By using the blades at the two sides of the cutting member, the cutting member can be moved back and forth on the transverse rod for cutting to improve the cutting efficiency.