A rewinding machine for convolutley winding a web material onto a core to is disclosed. The rewinding machine comprises a first winding drum rotatable at a first peripheral velocity, a second winding drum opposed to the first winding drum and rotatable at a second peripheral velocity, and a core support for gripping opposing ends of the core. The core support grips opposing ends of the core during winding of the web material about the core. The core support has first and second rotatable pins each having corresponding first and second ends capable of insertion into a respective end of the core. The first rotatable pin has a channel that provides fluid communication between a source of positive pressure disposed external to the first rotatable pin and the second end of the first rotatable pin to provide positive pressure to the interior portion of the core.

The rewinding machine includes a first winding cradle formed between a first winding roller, a second winding roller and a third winding roller. The first winding roller and the second winding roller define a nip through which there pass the winding cores with the web material being wound around them. The rewinding machine also includes a feed path of the winding cores that pass between the first winding roller and the third winding roller. A second winding cradle is formed between the first winding roller, the second winding roller and a fourth winding roller. The rewinding machine also includes a rolling surface extending around the first winding roller and defining a feed channel of the winding cores.

A cam-controlled core inserter for a surface winder is disclosed. The cam-controlled core insertion device provides for a shaft having a plurality of cam housings disposed thereabout. A cam cooperatively associated with a respective cam housing is disposed within a first surface of each of the cam housings. A fixed finger plate cooperatively associated with a respective cam housing and having a fixed finger fixably attached thereto is juxtaposed proximate to each of the cam housings and fixably attached to the shaft. A cam follower having a finger shaft that has a movable finger attached thereto is cooperatively associated with each of the cams. The distal end of each of the movable fingers and the distal end of each of the fixed fingers are capable of forming a space therebetween for contacting engagement and containment of a core suitable for the convolute disposal of a web material thereabout.

A rewinding machine is described with a winding cradle defined by three rollers and including a fourth winding roller defining with the first winding roller a cradle in which the web material is pushed by a winding core to the beginning of each winding cycle, to cause severing of the web material without the need for controlled mechanical parts.

A surface winder for winding a log of web material convolutely about a core is disclosed. The surface winder has a frame providing the web material with a path therethrough, a first winding roll rotatably mounted in the frame on one side of the path, a stationary finger mounted on the frame on the other side of the path adjacent the first winding roll and spaced therefrom a distance sufficient to receive the core to be wound in the path, the first winding roll cooperating with the stationary finger means to rotate the core, a cam-controlled core insertion device for a surface winder, and a second winding roll rotatably mounted in the frame on the other side of the path and downstream in the direction of web advance from the stationary finger means and forming a nip with the first winding roll.

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 pre-determined 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).

Method for rolling up definite lengths of a mats in a unidirectional rolled roll, where mats are advanced one after another into a rolling mechanism in flattened out condition and released from the mechanism in rolled up condition. A rolled up mat is ejected from the rolling mechanism and caused to roll out therefrom on top of a succeeding flattened out mat which advances towards the rolling mechanism. A mat rolling station for performing the method is provided, where a ramp conveyer is provided which advances a flattened mat towards the rolling mechanism. At the rolling mechanism, bending conveyers are provided for advancing the forwardly moving mat sections into a circular bend on the ramp conveyer. A difference of surface speeds of the bending conveyers and the ramp conveyer is controllable by a signal provoked by the advance of a succeeding mat on the ramp conveyer before the rolling mechanism.

A rewinding machine includes a drawing assembly (1), a winding assembly, a core-change assembly (5), and pneumatic elements for interrupting the continuity of the ply at the end of a winding cycle, and for starting a new winding cycle.

A rewinding machine for convolutley winding a web material onto a core to is disclosed. The rewinding machine comprises a first winding drum rotatable at a first peripheral velocity, a second winding drum opposed to the first winding drum and rotatable at a second peripheral velocity, and a core support for gripping opposing ends of the core. The core support grips opposing ends of the core during winding of the web material about the core. The core support has first and second rotatable pins each having corresponding first and second ends capable of insertion into a respective end of the core. The first rotatable pin has a channel that provides fluid communication between a source of positive pressure disposed external to the first rotatable pin and the second end of the first rotatable pin to provide positive pressure to the interior portion of the core.

The invention comprises a carpet wrapping apparatus. The apparatus comprises a pair of rotatable rollers for supporting a roll of sheet material and for rotating the roll of sheet material supported thereon and a vertically extending curtain disposed adjacent and spaced from the roll of sheet material so that there is a horizontal gap between the curtain and the roll of sheet material when supported on the rollers. The apparatus also comprises a source of pressurized air directed toward the curtain and a plastic film dispenser disposed above the rollers for dispensing a plastic film between the curtain and the source of pressurized air so that the pressurized air blows the plastic film toward the curtain and into the gap. A method of wrapping a roll of carpet with a plastic film is also disclosed.