A sheet delivery system includes: an end section detector which detects a position of an end section of a sheet; an operation robot which holds the end section of the sheet and which conveys the end section of the sheet to a joining unit; a roll driving motor which rotationally drives the standby-side original material roll around a central axis thereof; and a suction roller which is capable of coming into rolling contact with an outer peripheral surface of the standby-side original material roll, and which includes an outer peripheral surface capable of suctioning the end section of the sheet in order to separate the end section of the sheet from the standby-side original material roll. The end section detector is attached at a position which enables detection of the end section of the sheet separated from the standby-side original material roll by the suction roller.

The invention relates to an adhesive tape with a carrier composed of a film, there being applied on one side of the carrier an adhesive based on natural rubber or synthetic rubber, where the film is a biaxially oriented film made of polypropylene, polyethylene or polyester such as PET, and on the side of the carrier not coated with adhesive there is a release layer, based in particular on carbamate.

Disclosed in the present application are an automatic roll replacing device, and winding equipment. The automatic roll replacing device includes: a mounting frame; an unwinding mechanism, including an unwinding shaft rotatably connected to the mounting frame around its own axis; a spare material mechanism, including a spare material shaft having a contact end and a material pushing member providing an axial pushing force for a spare material roll on the spare material shaft, the spare material shaft being rotatably connected to the mounting frame around the rotation axis, and the material pushing member being controlled to push the spare material roll on the spare material shaft to transfer to the unwinding shaft; and a strip connection mechanism, provided on the mounting frame, and used for cutting off a work material strip unwound from the unwinding shaft and connecting the cut-off work material strip to the spare material roll.

An automatic supply apparatus of secondary battery electrodes, which includes an electrode supply hoist 120; a supply shuttle 130 receiving electrodes in the form of reels from the electrode supply hoist 120; a first unwinder 140 and a second unwinder 150 disposed at a position the supply shuttle 130 comes forward. A notching facility 110 is disposed at a position where the supply shuttle 130 comes forward, and the first unwinder 140 is disposed in the notching facility 110, the second unwinder 150 is mounted on the notching facility 110 and disposed at a downward position of the first unwinder 140, and a tape supply device 160 is provided at a front position of the notching facility 110 so as to be disposed above the first unwinder 140. The present invention provides a system in which one automatic supply shuttle moves in the Y-axis direction to feed multiple notching facilities, and can fully automatically feed and connect without help of an operator, thereby reducing the number of workers, achieving the effect of reducing space and reducing costs compared to the conventional system.

A reel installation and removal device that installs and removes a reel on which a tape containing components is wound, the device including a control device configured to execute a detachment control of driving a holding section and a cutting section so that the tape is held and cut in a portion to which the component has been supplied after driving a feeding section and a rotation section so that the tape is rewound and wound around the reel, and controlling the feeder set unit and the reel transfer unit so as to detach the reel from the feeder in a state where the feeder to which the reel is attached is set in the feeder set unit.

The splicer, for splicing a first web material and a second web material, comprises a retaining device adapted to hold a leading edge of the second web material in a standby position; and a dispenser for an adhesive, comprising a dispensing member configured to dispense a strip of adhesive onto the leading edge of the second web material in the standby position. An unwinder and a line are also disclosed, using splicers as defined above, as well as a method for splicing two web materials together.

A method for joining together two webs includes: overlapping a head portion of the second web on a tail portion of the first web, jointly cutting the head portion of the second web and the tail portion of the first web along a cutting line, so as to form on the first web and on the second web respective front edges offset from each other, and applying a first adhesive splicing tape between a head end of the second web and a tail end of the first web and at the same time aligning frontally with each other the front edges of the first and the second webs.

A fully automatic material film splicing apparatus and splicing method, comprising: an on-line material film feeding device and at least two material film splicing devices; the on-line material film feeding device being configured to switch between working positions corresponding to the at least two material film splicing devices; each of the material film splicing devices being equipped with a material film roll machine, the material film roll machine continuously delivering a strip-shaped material film into subsequent mechanisms via the material film splicing device and the on-line material film feeding device; when a material film in use (referred to as an on-line material film) is depleted, the on-line material film feeding device transferring an end portion of the on-line material film to the next material film splicing device to splice a starting portion of a new material film with the end portion of the on-line material film.

An unwinder for unwinding reels of paper includes a supporting structure partially closed and defining an internal space suitable for unwinding at least one reel; the supporting structure includes: a first lateral support; a second lateral support spaced from the first support; a crosspiece interposed above between the first and the second support defining with the first support and second support the partially closed structure; the unwinder further includes: a first axial unwinding system placed at the first support and configured to axially unwind a first reel; a second axial unwinding system placed at the second support and configured to unwind a second reel; a joining device placed at the crosspiece and configured to make a joint between a first ply belonging to the first reel and a second ply belonging to the second reel to perform a reel exchange.