Abstract:
Wrapping material roll (1) comprising a flexible sheet (10) having a length (L) and a width (W), wherein the sheet (10) is rolled concentrically about an axis (R) parallel to the direction of the width (W) such that a longitudinal end (20) of the sheet (10) is located along a circumferential side (11) of the wrapping material roll (1), wherein at least a part of the longitudinal end (20) is folded along a folding line (20a, 21a, 22a) over at least part of the width (W).
Abstract:
Rewinding machine for producing paper logs (20) by winding a paper web (2), comprising: means for feeding a paper web (2) along a predetermined path (F2) at a predetermined feeding speed; web pre-cutting means (30, 31); web winding means (R2, R3, R4); web sizing means, with a pad (60) adapted to cyclically apply glue by contact on the web, the pad (60) being mounted on a pad-holder device (6) connected with a corresponding actuator (61). The web sizing means are arranged upstream of a web winding station (W). The pad-holder device is controlled such that, when the pad (60) contacts the web (2), the pad is moved with a speed lower than the speed of the web along the respective feeding path so as to cause a prolonged contact of the pad with the web while the pad and the web move.
Abstract:
Method for applying glue on tubular cores for the production of logs of paper material, comprising the step of supplying in sequence more tubular cores (1) along a predetermined advancing direction (A) and the step of applying on each of said cores (1) a predetermined amount of glue on a first point (P6) and on a second point (P7). The method further comprises a step of orienting the glue (G6 ) applied on the first point (P6) towards the second point (P7) and along said advancing direction (A), and orienting the glue (G7) applied on the second point (P7) towards the first point (P6) and along a direction opposite relative to said advancing direction (A).
Abstract:
A dunnage conversion system includes a machine for converting a stock material (14) into a strip of relatively lower-density dunnage, a coiling mechanism (20) for winding the strip into a coil, a taping mechanism (22) for automatically securing a trailing end of the strip to the coil, and a coil ejecting mechanism (24) for automatically removing the coil from the coiling mechanism. The taping mechanism includes a guide surface (70) between an outlet of the machine and the coiling mechanism to guide the strip to the coiling mechanism and to guide tape for engagement with a trailing end of the strip and to secure the trailing end of the strip to the coil. The coil ejecting mechanism includes a lever arm (126) that pivots to push the completed coil off the coiling mechanism.
Abstract:
The present invention relates of a method of using a slitter winder (20) according to which the web (w) is slit in the longitudinal direction into at least two partial webs (w1) which are rewound to separate roll (26) and according to which, when the rolls have reached a desired diameter, the web is cut and the cut end of the web attached to the surface of the completed roll by means of adhesive by bringing adhesive with an adhesive application apparatus (29) to the surface of the web on the side which remains between the web and the roll when the adhesive arrives to the roll. It is characteristic of the method that adhesive is brought to the surface of the web while the web is moving and that an adhesive stripe (28, 28') essentially transverse to the running direction of the web is formed of the adhesive onto the surface of the web.
Abstract:
A rewinder machine for the production of rolls of web material is described, comprising: a winder unit (3, 5, 7); a path for delivering the web material (N) to said winder unit; a system for continuously feeding said web material into said winder unit; a distributor (31) of a sheet material (F) for wrapping the rolls formed by said winder unit, installed and operated so as to deliver a length of sheet material to said winder unit on completion of the winding of each roll without stopping the forward feed of the web material.
Abstract:
The invention is in the field of devices enabling the sticking of splicing tapes to the ends of strips put into rolls, to prevent their later unwinding. The present invention relates to a device (1) for applying splicing tapes (22) on a strip (30) made of flexible material. The device (1) is equipped with a passive device (50) enabling the elimination of the electrostatic forces that disturb the operation of the device. The device (1) according to the invention is mainly used on photographic film or paper slitters.
Abstract:
An apparatus and method for sealing the tail (T) of a rolled product (L) against the rolled product. After being positioned in a location upon a roller (36), the rolled product is rotated between the roller and a conveyor assembly (6) until a jet (44) blows the unsealed tail against the roller. By further rotating the roller, a sensor detects the location of the tail end for determining tail length in later operations. The roller is reversed to pass the tail around the roller and preferably to a tail support (40) adjacent the roller. When the tail reaches a desired position along the tail support, an applicator sensor (52) sends a signal to an adhesive assembly (42) which applies adhesive to the tail and/or the rolled product. After the adhesive has been applied, the roller is again reversed to roll the tail back upon the rolled product. The rewound rolled product is then preferably rolled over at least one ironing roller (172).
Abstract:
In the method in connection with a reel-up of a paper web there is a rotating reel spool (2) around which a reel (R) has been formed from the paper web (W) passed to the reel-up. In the method web (W) passed to the reel is cut, and the surface layers of the reel are bound by means of a press device (3) which is in contact with the surface of the rotating reel (R) and comprises a press member (3b) forming a nip with the peripheral surface of the reel and rotating substantially at the same surface speed therewith. In addition to using the press member (3b), the final end, i.e. tail (H) of the web that travels along with the rotating motion of the reel is guided against the peripheral surface of the reel (R) by means of a guiding member (3a), which is located within a distance from the press member (3b) in the direction of the perimeter of the reel and whose surface that is located opposite to the reel has a lower speed in the direction of motion of the peripheral surface of the reel than the peripheral surface of the reel (R).
Abstract:
The device comprises: a feed path for a roll to be glued; along said path a station for unwinding and positioning the tail edge of the roll; in said unwinding and positioning station, a first movable member (7) and a second movable member (9) making contact with said roll (R). A glue dispenser comprising a glue reservoir (53) and a dispensing element (55) movable along a dispensing path is also provided.