Abstract: This invention provides a winding machine comprising a support drum, a winding tube at least partially supported on the support drum, and a web of material being wound around the winding tube to form a web reel in response to rotation of the support drum and the web reel, the point where the web reel rotates into contact with the support drum being called the nip. The winding machine further includes a nip safety guard comprising a finger presence sensor, a support mechanism supporting the finger presence sensor adjacent one of the web reel and the support drum, and a moving mechanism that moves and locates the finger presence sensor support mechanism depending on the size of the web reel so that the finger presence sensor is located closely adjacent the one of the web reel and the support drum and spaced a safe distance from the nip. The safety guard moving mechanism further includes a control for determining the size of the web reel and operating the moving mechanism to position the finger sensor.

Abstract: In a cross cutting device for a winding machine having at least a first carrier roll (11) wrapped by the web to be wound and a second carrier roll, both carrier rolls forming a winding bed for at least one roll (13) to be wound around a winding core (14), particularly for winding paper in form of one web or several webs in parallel, a cross cutting device to cut through the web after completion of a roll (13) is formed near the front end of a support beam (24) being conductible through a clearance gap (G) between a first and second carrier roll into a cutting position of the cross cutting device which is located at or close to the surface of said first carrier roll (11). Said support beam (24) can be pressed by means of a finished wrapped roll (13) against said wrapped first carrier roll (11).

Abstract: A method and apparatus is disclosed for effecting, in a preferred embodiment, a double-sided web splice for paper webs produced in the papermaking process. A trailing portion of a first paper web is held and cross-cut over a support beam which is selectively moved into, and out of, supporting position beneath. The leading portion of a second paper web is brought into position over the support beam where the second paper web is also held and cross-cut. Carriages containing first and second tape means traverse the trailing and leading edges of the webs. On one carriage is mounted a plow-like web lifting and separating apparatus for contacting the leading and trailing edges of the webs and forming a splice bed between the temporarily lifted and separated web edges. A first tape means is mounted to the carriage to extend an adhesive tape in the web bed, the tape having a non-adhesive side supported on the beam.

Abstract: An expandable mandrel including a threaded spindle with a drive for rotating the spindle, wedge pieces supported on the spindle with core chuck lugs facing outwardly for engaging the inner surface of a core, the wedge pieces having outwardly facing inclined cam surfaces, matching cam surfaces on the core chuck lugs to expand the core chuck lugs when the wedge pieces are moved relatively axially by the spindle, the wedge pieces and core chuck lugs being free to rotate with the spindle until locked by an annular gear and a stopping rack so that the wedge pieces and core chuck lugs are held against rotation to allow the spindle to rotate relatively thereby moving the wedge pieces axially and the core chuck lugs outwardly.

Abstract: A rider roll system for exerting an even nip load force along the surface of a roll of paper being wound from a continuous on-coming web in a winder comprises a plurality of rider roll wheel elements, each of which is connected to a common source of hydraulic pressure to provide the same rolling nip force against the wound paper roll. The rider roll wheel elements are mounted to a beam which is translationally movable above the wound paper roll. The beam and individual rider roll wheel elements are moved upwardly as a function of the increase in the diameter of the wound paper roll. The relationship of the beam movement relative to the diameter of the wound paper roll is controlled by a programmable logic controller. The individual wheel elements are loaded against a counter-balance force so as to provide equal, but cushioned, nip force against the surface of the wound paper roll at short intervals along its length.

Abstract: A method for effecting a set change in a winder for a papermaking machine, comprises skip-slitting the paper web across the width of the web transversely to the direction of web travel in the winder. An adhesive stripe is applied to the web on either side of where the skip-slit is located. The skip-slit and application of the glue is done at a location upstream of the winder to avoid the problems associated with mounting and operating such equipment beneath the winder. The paper web is severed by advancing the skip-slit to a position near the 10 o'clock position over the surface of a first winder drum where the web is halted and the wound paper roll is urged off its support on the first winder drum to thereby increase the tension in the web between the wound roll and web supported on the first winder drum to sever the web. The adhesive stripes on either side of the severance are then applied to the wound roll and a new core, and the process is repeated.

Abstract: A high pressure water jet is used in conjunction with a relatively low power laser to produce a smooth cut in a traveling web. The cutting procedures produces a relatively small amount of fiber dust in the atmosphere surrounding the cutting operation. The water jet severs the traveling web into separate parts, and the laser is directed to the severed edges to burn away the protruding ends of the paper fibers to produce a uniform, smooth cut in both severed edges. A trough is disposed on the side of the web opposite the water jet and laser to receive and collect the water severing the web and the fiber dust, and to diffuse the laser beam emissions.

Abstract: A device for widthwise control of web material, comprises bar structure having resiliently bendable beam means for effecting a primary bowed adjustment. A set of side-by-side independent but cooperative wrap area members are carried by the beam means and are adapted to be individually selectively adjustable relative to the beam means to effect secondary adjustments incrementally at any of the members, without altering the primary bow relation, for correctionally compensating for uneven tension in any part of the web material, such as may be caused by web thickness, bulk or length.