公开(公告)号：US20240383627A1

公开(公告)日：2024-11-21

申请号：US18577364

申请日：2022-07-04

Applicant: Valmet Tissue Converting S.p.A.

Inventor： Luca FRASNETTI

IPC: B65B11/22 ,  B65B5/06 ,  B65B25/14 ,  B65B35/44 ,  B65B41/16 ,  B65B49/08 ,  B65B51/10 ,  B65B51/14 ,  B65B57/18 ,  B65B61/02 ,  G06T7/00 ,  G06T7/292 ,  G06V10/764

Abstract: The system includes a packing machine and one or more video cameras to detect the quality of packs of tissue paper products, and/or of the wrapping sheet used for wrapping the packs. A control unit is provided to manage the detected images and, if necessary, to compare them with reference images.

公开(公告)号：US20240367406A1

公开(公告)日：2024-11-07

申请号：US18580709

申请日：2022-07-19

Applicant: Valmet Tissue Converting S.p.A.

Inventor： Mauro RICCI ,  Fabrizio LORENZI

IPC: B31F1/07

Abstract: The embosser includes two load-bearing structures that are mutually movable to approach and move away from each other. The first load-bearing structure supports a plurality of first embossing rollers that can be selectively brought to an operating position, in which they cooperate with a first pressure roller. The second load-bearing structure supports one or more second embossing rollers cooperating with a second pressure roller. The two support structures can be moved away from each other to allow the selection movement of the first embossing rollers.

公开(公告)号：US20240109744A1

公开(公告)日：2024-04-04

申请号：US18536706

申请日：2023-12-12

Applicant: Valmet Tissue Converting S.p.A.

Inventor： Franco MONTAGNANI

IPC: B65H35/00 ,  B26D7/20

CPC classification number: B65H35/0086 ,  B26D7/204 ,  B65H2301/412 ,  B65H2557/63

Abstract: The device (3; 201; 202) with rotating blades includes a support structure (17; 217). The structure supports a rotating blade-holder (15; 15B; 203; 205), which rotates around a rotation axis and on which a group of rotating blades (19; 19B; 203A; 205A) is arranged. An anvil blade (21; 21B; 21C; 204; 206) is further provided carried on the support structure (17; 217) adapted to co-act with the group of rotating blades (19; 19B; 203A; 205A). A sensor (31; 104; 105; 107; 231; 232) detects a parameter indicative of a mutual interaction between the group of rotating blades (19; 19B; 203A; 205A) and the anvil blade (21; 21B; 21C; 204; 206).

公开(公告)号：US20250034814A1

公开(公告)日：2025-01-30

申请号：US18716240

申请日：2022-12-05

Applicant: Valmet Tissue Converting S.p.A.

Inventor： Franco MONTAGNANI ,  Matteo GALOPPINI

IPC: D21H27/40 ,  B31F1/07 ,  D21G9/00

Abstract: The embossing device includes one or more cameras with respective lighting and image acquiring systems to acquire images of one or more plies of the produced cellulose web material. The images can be used to detect any defect in the produced material and to alarm, or signal the need for intervention on an embossing device. Based on the defects on the product detected by processing the acquired images, it is also possible to directly intervene on functional units of the embossing device, to remove or reduce the defects.

公开(公告)号：US20240391121A1

公开(公告)日：2024-11-28

申请号：US18689158

申请日：2022-09-02

Applicant: Valmet Tissue Converting S.p.A.

Inventor： Matteo GALOPPINI ,  Mario Gioni CHIOCCHETTI

IPC: B26D7/02 ,  B26D1/16 ,  B26D3/16 ,  B26D7/01

Abstract: The clamping device includes a flexible member extending approximately according to an arc of circumference open at the bottom at a supporting and sliding surface of the logs to be cut. Actuator members are further provided for clamping and releasing the flexible member around the logs to be cut which advance along the feed path through the arc of circumference defined by the flexible member. The actuator members include a first tensioning and release device of the flexible member and a second tensioning and release device of the flexible member. The first tensioning and release device and the second tensioning and release device are adapted to engage two ends of the flexible member, and to increase and reduce the radius of the arc of circumference defined by the flexible member, which extends between the first tensioning and release device and the second tensioning and release device.

公开(公告)号：US20240359354A1

公开(公告)日：2024-10-31

申请号：US18687425

申请日：2022-08-10

Applicant: VALMET TISSUE CONVERTING S.P.A

Inventor： Franco MONTAGNANI ,  Matteo GALOPPINI

IPC: B26F1/20 ,  B26D1/00 ,  B26D1/38 ,  B26D5/20 ,  B26D7/26 ,  B65H35/00

CPC classification number: B26F1/20 ,  B26D1/0006 ,  B26D1/385 ,  B26D5/20 ,  B26D7/2628 ,  B65H35/0086 ,  B26D2001/0066 ,  B26D2001/0073 ,  B65H2301/122 ,  B65H2701/1944

Abstract: The device includes a fixed counter-blade and a rotating blade-holder on which a set of rotating blades is arranged. A web material which must be perforated or cut into sheets passes between blade-holder and counter-blade. A mutual contact sensor and an angular position sensor provide signals that allow correct positioning and functioning of the rotating blades and the counter-blade to be displayed on a human-machine interface.

公开(公告)号：US20240308169A1

公开(公告)日：2024-09-19

申请号：US18576553

申请日：2022-07-01

Applicant: Valmet Tissue Converting S.p.A.

Inventor： Fabrizio LORENZI ,  Leonardo BOSCHI

IPC: B31F1/07

CPC classification number: B31F1/07 ,  B31F2201/0715 ,  B31F2201/0753 ,  B31F2201/0764 ,  B31F2201/0766 ,  B31F2201/0771 ,  B31F2201/0787 ,  B31F2201/0789

Abstract: The embossing device includes—a first path for a first ply of web material; —along the first path, a first embossing roller provided with embossing protrusions; —a first heating device associated with the first embossing roller to heat the surface of the first embossing roller; —at least a first functional roller adapted to perform an action on a ply of web material. The first functional roller is provided with a rotation arrangement, adapted to keep the first functional roller in rotation during a temporary stoppage of the embossing device, with the first functional roller spaced from the first embossing roller and with the first ply of web material stationary in the first path.