Rewinding machine and method for controlling the speed of the motors in a rewinding machine

    公开(公告)号:US12030736B2

    公开(公告)日:2024-07-09

    申请号:US17283478

    申请日:2019-10-03

    发明人: Franco Sforzi

    IPC分类号: B65H23/18

    摘要: The rewinding machine (1) comprises: a winding station (3) with winding members (5, 7) operated by winding motors (8.1, 8.2); an unwinder (31.1, 31.2) with an unwinding member (35.1, 35.2) operated by at least one unwinding motor (38.1, 38.2); guide roller (43.1, 43.2) along a feed path (P) of the web material (N, N2). There is associated with the guide roller (43.1, 43.2) at least one load sensor (42.1, 42.2), adapted to detect a parameter proportional to the tension of the web material (N; N2) guided around the guide roller (43.1, 43.2). There is also provided a control unit (71) adapted to modulate a difference in speed between the winding members (5, 7) and the unwinding member (35.1, 35.2) as a function of a signal coming from the load sensor (42.1, 42.2).

    Sheet transport apparatus and sheet processing apparatus

    公开(公告)号:US12024398B2

    公开(公告)日:2024-07-02

    申请号:US18121048

    申请日:2023-03-14

    申请人: Glory Ltd.

    发明人: Kojiro Itotani

    IPC分类号: B65H9/00 B65H5/06 B65H7/06

    摘要: A sheet transport apparatus includes a first direction changing roller arranged along a transport path, wherein a sheet is transported along the transport path; a second direction changing roller disposed on the transport path, wherein the first direction changing roller and the second direction changing roller are next to each other in a direction perpendicular to the transport path, and the first direction changing roller and the second direction changing roller change an orientation of the sheet from a first orientation to a second orientation; and a control circuit configured to control one of the first direction changing roller and the second direction changing roller so that the first direction changing roller rotates slower than the second direction changing roller so as to change the orientation of the sheet from the first orientation to the second orientation.

    Method and installation for producing a film or sheet from a slabstock foam, and method and system for retrofitting an installation for film or sheet production

    公开(公告)号:US20240198554A1

    公开(公告)日:2024-06-20

    申请号:US18580130

    申请日:2022-02-22

    摘要: The invention relates to a method for producing a film (2) or sheet from a block material, in particular from a slabstock foam (3), in which at least the following regions are provided, as seen in a production direction (P) of the film (2) or sheet: a cutting region (I) for cutting the film (2) or sheet, wherein the film (2) or sheet is cut out, in a slitting-open manner, by means of a cutting unit (10) from the block material, which is continuously fed to the cutting region (1); also a passing-on region (II), adjoining the cutting region (I) and having a driven passing-on roller (20) for conveying the film (2) or sheet out of the cutting region (I); and also a secondary region (III′), adjoining the passing-on region (II) and intended for further processing the film (2) or sheet, in particular a winding region (III) for winding the film (2) or sheet into a coil (4). In this case, there is a cutting-region stress in the film (2) or sheet in the cutting region (1) upstream of the passing-on roller (20), and there is a secondary stress in the film (2) or sheet in the passing-on region (II) upstream of the secondary region (III′), in particular winding region (III). The invention also relates to an installation (1) for film or sheet production, and to a method for retrofitting an installation (1) for film or sheet production, and to a system for retrofitting an installation for film or sheet production.

    BELT CONVEYOR DEVICE AND IMAGE FORMING APPARATUS

    公开(公告)号:US20240067473A1

    公开(公告)日:2024-02-29

    申请号:US18454532

    申请日:2023-08-23

    发明人: Daijiro Ueno

    IPC分类号: B65H5/22

    摘要: A plurality of support rollers support a conveyor belt. A first transmission mechanism transmits a rotational force of a first motor to one of the plurality of support rollers. A second transmission mechanism transmits a rotational force of a second motor to one of the plurality of support rollers. A first control portion controls a first supply power supplied to the first motor in accordance with a difference between a speed detection value and a target speed. A second control portion controls a second supply power supplied to the second motor in accordance with one or both of conveyance information on a conveyance state of an object in a specific area and suction force information on a suction force of a suction fan. The second transmission mechanism transmits the rotational force at a greater reduction ratio than the first transmission mechanism.

    IMAGE PROCESSING APPARATUS AND IMAGE PROCESSING METHOD

    公开(公告)号:US20240059517A1

    公开(公告)日:2024-02-22

    申请号:US18450691

    申请日:2023-08-16

    发明人: Seiichi Shirasaki

    IPC分类号: B65H9/00 B65H5/06

    摘要: An image processing apparatus includes a registration roller, a first conveying roller, and a second conveying roller. The registration roller is disposed on a conveying path of a sheet to be subjected to image processing, and corrects the skew of the sheet by allowing the leading end of the sheet abut thereon in a stopped state. The first conveying roller is disposed upstream of the registration roller on the conveying path at a position where a first loop space for deflecting the sheet is interposed between the first conveying roller and the registration roller. The second conveying roller is disposed upstream of the first conveying roller at a position where a second loop space is interposed between the two conveying rollers. The second conveying roller conveys the sheet at a conveying speed that is equal to or higher than the conveying speed of the first conveying roller.

    PERFORATION DEVICE AND SHEET POST-PROCESSING DEVICE INCLUDING THE SAME

    公开(公告)号:US20230312298A1

    公开(公告)日:2023-10-05

    申请号:US18188634

    申请日:2023-03-23

    发明人: Rina OKADA

    IPC分类号: B65H35/00 B26F1/10

    摘要: A perforation device includes a shaft, a perforation motor, a first perforation unit, a second perforation unit, a first cam, a second cam, a control unit and a perforation switching mechanism. The perforation switching mechanism reciprocates the shaft in an axial direction to selectively arrange the shaft in a first position in which the first cam is opposite the first perforation unit and the second perforation unit and in a second position in which the second cam is opposite the first perforation unit. The perforation switching mechanism includes a rack gear that is attached to the shaft, a perforation switching motor and a pinion gear that is fixed to the rotating shaft of the perforation switching motor and engages with the rack gear. The control unit can selectively perform first perforation processing and second perforation processing by arranging the shaft in the first position and in the second position.