The present application relates to a roll replacing device and an adhesive tape sticking equipment. The roll replacing roll device replacing includes an unwinding member, a roll replacing member, a cutting member, and an end pressing member, which can realize automatic roll replacing of a work strip and a spare strip and reduce staffing, thereby reducing labor cost.

There is described a web alignment device for aligning a web comprising an engagement surface for supporting the web, a clamp assembly for clamping the web on at least a clamp portion of the engagement surface, an alignment control assembly for controlling a correct alignment of the web. The alignment control assembly comprises a control unit for generating a trigger signal if the web is correctly aligned, a first sensor device for detecting and/or determining a desired position of a first section of the web and to send at least a first signal to the control unit if the first section is positioned in the desired position, and a second sensor device for detecting and/or determining a desired position of a second section of the web and to send a second signal to the control unit if the second section is positioned in the desired position.

A method for joining ends of fiber webs with a device comprising a tool element with a gripping device and a traversing punching device. A run of the fiber web from the emptying parent roll is moved to a joining position at the tool element. The trailing end of the parent roll fiber web is cut upstream from the joining position and the fiber web is attached to the tool element by a gripping device of the tool element. An end of a new roll fiber web is guided to contact with and to an overlapping position with the trailing end of the parent roll fiber. The traversing punching device is moved across the width direction of the fiber webs and makes at least one joint cut and joins the fiber webs. The new fiber web is cut downstream from the joint, and then tension control is turned on.

A high-speed digital printing system includes two unwinding machines for two input coils for a paper web, an input unwinding and splicing installation and a printing station and in which the input installation supplies, in turn, the printing station with the web of the two coils. The system also includes a splicing and rewinding installation with an output cutting and splicing equipment for an incoming web emerging from the printing station and two rewinding machines with two output coils. The output equipment feeds alternatively the rewinding machines with the incoming web by cutting and splicing of a web of the two output coils without stopping printing. An electronic controller switches the functionality of the output cutting and splicing equipment and of the rewinding machines with setting of the output coils as an operating coil and a waiting coil and, viceversa, as a waiting coil and an operating coil.

An automatic electrode supply apparatus configured to automatically supply an electrode in various processes for manufacturing a secondary battery includes a first chuck splicing unit including a splicing portion having a traveling electrode located thereon and a second chuck splicing unit including a splicing portion having a standby electrode located thereon, wherein each of the first and second chuck splicing units includes an edge position control (EPC) sensor configured to measure the position of the edge of a corresponding one of the traveling electrode and the standby electrode in order to prevent distortion or fracture defect of the electrode due to positional deviation between the traveling electrode and the standby electrode, and an automatic electrode supply method using the same.

A sheet supply device and a sheet supply method include a guide roller disposed at an opposite side of a standby side roll with respect to a tangential line to an outer peripheral surface of the standby side roll at a pressing position in a state in which a pressing roller is pressed against a pressing position, and configured to guide a sheet from the pressing roller in a direction away from the standby side roll. Furthermore, the second guide roller is fixed to a moving unit so as to be configured to approach and move away from the standby side roll together with the pressing roller.

Splicing method and unit for a packaging machine, whereby a first film is spliced to a second film which is a spare film. The splicing is performed by means of an adhesive element with two opposing adhesive surfaces, one for each film, and a longitudinal adhering element. First an adhesive surface is adhered to the adhering element and said adhering element moves so that the other adhesive surface comes into contact with the second film and adheres to it. Then the adhering element is separated from said second film, the adhesive element being adhered to said second film, and the first film is caused to come into contact with said adhesive element already adhered to the second film.

The apparatus for combining tobacco sheets (3, 4) comprises a first shaft for carrying a first bobbin (30) of tobacco sheet (3) and a second shaft for carrying a second bobbin (40) of tobacco sheet (4). The apparatus also comprises a splicing unit (2) for combining an end portion of tobacco sheet from the first bobbin (30) to a head portion of tobacco sheet from the second bobbin. The splicing unit comprises a cutting device (20) for cutting the tobacco sheets such as to provide complementary cuts to the tobacco sheets (3) from the first bobbin and from the second bobbin (4), a dispensing device (23) for dispensing water to at least one of the tobacco sheets (3, 4), and a combining device (24) for applying force onto the tobacco sheets thereby producing a spliced tobacco sheet.

A device for joining webs with self-adhesive labels comprises a web retaining element (18) for, in use, selectively retaining the starting end (16) of a new web (13) at an operating zone (15) positioned along a feed path of a first web being used and a pressure element (26) positioned on the opposite side of the first web; at least one of either the retaining element (18) or the pressure element (26) being movable relative to the other, between a non-operating position in which they are at a distance from each other and an operating position in which the pressure element (26) presses the first web (10) onto an adhesive element fixed to the new web (13); it also comprises a cutting (27) movable between a non-interference position and a cutting position, movement means for moving the cutting element (27) from the non-interference position to the cutting position, and controlled feeding means for the first web (10) which are operatively associated with the movement means for causing controlled feeding of the first web (10) in the operating zone (15) during movement of the cutting element (27) towards the cutting position. A method for joining implemented by the device is also claimed.

Disclosed is a feedstock device (1) to deliver film (2) to a bundle-wrapping machine and including, on the one hand, at least one reel (3) to receive a roll (4) of the film (2) to be delivered, and, on the other hand, a joining unit (5) to attach the next film (2) to the film (2) that is currently being fed. This device includes a support (6) on which the at least one reel (3) is mounted, with the support (6) being mobile in relation to the joining unit (5) to bring the delivered film (2) to the latter. The invention also has as its object a machine and a corresponding method.