Disclosed is a web handling system that includes a spindle having a spindle magnetic coupling portion and a roll core configured for receiving the spindle for mounting thereon and having a roll magnetic coupling portion, wherein the spindle and roll magnetic coupling portions are configured for magnetically attracting each other to hold the roll on the spindle.

An automatic supply and replacement device of an electrode plate for manufacturing a secondary battery, includes: an electrode plate supply unit for supplying a circular electrode plate to an electrode plate transfer unit, where the electrode plate supply unit includes a rotary axis installed at a lower portion to be rotatable at 360 degrees, a support unit supporting the rotary axis, a first guide rail installed at a lower end of the support unit and moving the entirety of the electrode plate supply unit horizontally, a second guide rail moving the entirety of the electrode plate supply unit forward and backward, a first holder at an upper end of the rotary axis and inserted with a core of the circular electrode plate, a first push stick pushing the circular electrode plate held on the holder, and the circular electrode plate held on the first holder.

An unwinding assembly comprising first and second unwinding and handling units comprising respective robots having respective wrists movable under the control of at least one electronic control unit, wherein each of said unwinding and handling units comprises a respective unwinding device mounted on the wrist of the respective robot. The present invention also relates to an unwinding and handling unit capable of handling the reel carried by it with high freedom of movement, while maintaining small dimensions.

A method for automatically replacing reels in an unwinding assembly capable of carrying out the handling operations of the reels, as well as preparing and joining the tail of the web of the finished reel with the head of the web of the new reel in a simple, efficient way, reducing the risk of malfunctions and maintaining the correct orientation of the new web as that of the finished web.

The present invention embraces a method and apparatus for improving ribbon replacement for thermal printers. The present invention also applies to replacement of other media in associated printers. The improvement is achieved based a ribbon adapter or media adapter that is designed for two conditions: 1) catch condition for printing, and 2) release condition for replacing the media in the printer. By a single click or press of a button, a user can switch between the two conditions. The printing operation occurs during the catch condition. The catch condition ensures that there is no or little relative movement between media core and media adapter. The media adapter can also support different diameter media cores. The release condition is implemented when the user replaces media. The release condition can provide a relatively easy replacement of a media without a significant force or pressure.

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 roll feeding device, comprising: a support shaft (10), equipped with a longitudinal axis (Y) and provided to support one or more rolls (C), which comprises a first end (11) and a second end (12); one or more pusher arms (20), movable along a direction parallel to the longitudinal axis (Y) in both directions, each of which is movable between an active position, in which it is arranged alongside a roll (C) and can come into contact with it during a movement parallel to the longitudinal axis (Y), and an inactive position.

An automatic machine includes a load-bearing frame having a base, a vertical side wall, a horizontal wall facing the base, a vertical front wall, defining a machine front with a protruding motor-driven shaft supporting a respective reel of wound material. A plurality of operating stations positioned on the front wall through which a processing path extends along which said material proceeds whilst it is unwound from the reel. A storage unit houses replacement reels is positioned directly associated with the frame close to the shaft. A device picks up reels and positions them on the shaft. The device is positioned directly associated with the frame close to the storage unit. A control unit activates the device in response to a run out signal of the reel present on the shaft.

A secondary battery electrode film and separator supply device configured to: replace a bobbin when an electrode separator is used up by automatically extracting an empty bobbin from a spool, mounting the empty bobbin on a side of a bobbin mount of a bobbin changer, changing the position of a new bobbin mounted on another side by rotating the bobbin mount 180 degrees, and then moving and mounting the new bobbin on the spool; automatically extracting an end of a wound electrode separator through vacuum suction and connecting the end to another electrode separator; and feed a replacing material roll to a moving spool, cut a finishing tap at an end of a material by a predetermined length, and then automatically connect a new separator end of the replacing material roll and an in-use separator end through taping.

An apparatus for changing paper rolls in a labelling machine that includes a first paper roll receptacle that includes a first roll carrier connected to a first end of a shaft, which can be moved along an axis between an unwinding position and a transfer position. The first roll carrier has at least one clamping device that is radially displaceable between a clamping position and a release position. The apparatus further includes a second paper roll receptacle that includes a second roll carrier that in a storage position is disposed coaxially with respect to the first roll carrier. In the transfer position, the first roll carrier together with the clamping device is disposed at least in sections in an interior of the second roll carrier. In the unwinding position, the first roll carrier together with the clamping device is disposed at least in sections outside the second roll carrier.