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.

An automatic splice preparation process for splicing between two rolls of a material in web format, such as paper, and a system for carrying out same, wherein the positioning system for positioning the paper web of the new roll is displaced automatically by a robotic arm, the displacement of which is verified and corrected through machine vision device, to locate and capture the edge of the web in a controlled manner. The robotic arm is provided with a head incorporating the machine vision device and gripping areas, such that the movement of the assembly established by a program, verified and corrected, if needed, through the signals generated by machine vision system which are preferably made up of at least three machine vision cameras positioned in the central area and at the ends of the head.

The invention relates to a release liner removal apparatus, comprising at least one release liner removal device for removing at least one release liner from at least one adhesive piece arranged on a material web, at least one support body which supports the at least one release liner removal device, and at least one guide body which is arranged adjacent to the at least one release liner removal device at least during the removal of the at least one release liner and which serves for guiding the material web.

The invention relates to a plant having at least one material roll preparation arrangement for bringing a material roll carrying a material web to be drawn in into a defined initial situation, and having at least one material web working/processing arrangement, in particular material web dispensing arrangement, in particular material web unrolling arrangement, in particular material web splicing arrangement, which material web working/processing arrangement is capable, owing to the defined initial situation of the material roll, of receiving the material roll in automated fashion and preferably receiving the material web in automated fashion and/or preparing the material web in automated fashion.

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 joint and device for joining ends of at least two fiber webs together, the joint being formed of at least one cut provided to penetrate through the ends of the fiber webs in an overlapping position, which cut has at least one side part and from the side part extending at least one substantially straight part and which cut, which forms at least one flap, being configured to remain attached to the fiber webs by at least one folding line substantially aligned with the direction of the movement of the fiber webs. The device comprises a tool with a cutting edge and a counter element with a groove and located on the opposite side of the fiber webs, and the tool protrudes into the groove. The groove has a greater cross-sectional area than the cross-sectional area of the tool such that a loose and spacey fitting is provided.

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 spool unloading device comprising: a spindle; a first bulk spool of material is mounted on the spindle, wherein the spindle is rotatably controlled to dispense the material; a series of pulleys for receiving the unspooled material such that a variable length of the material is stored within the device before exiting the device to an upstream equipment; and a drive mechanism for indexing the unspooled material exiting the spool unloading machine at a controlled rate.

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.

A vacuum station comprising a main housing and a pair of arms extending from the main housing. The arms are configured to hold a roller. The main housing has a front face and a rear face, with the front face having a recess therein. An air path extends from the front face to the rear face. The vacuum station also includes a removable plate having a plurality of suction holes therethrough located within the recess in the front face of the main housing. The removable plate is removably connected to the main housing by magnets. A sheet of labels can be held to the removable plate by a suction force through the air path in the main housing and the suction holes in the removable plate.