SEPARATOR DEVICE FOR A CONVERTING MACHINE

    公开(公告)号:US20250051126A1

    公开(公告)日:2025-02-13

    申请号:US18719333

    申请日:2022-12-20

    Applicant: BOBST MEX SA

    Abstract: The present invention relates to a separator device (22) for a folder-gluer machine, the separator device being configured to divide a shingled stream of folding boxes into separate batches, the separator device comprising a vertically movable separator head and at least one upper evacuation conveyor belt.
    A lower conveyor system (30) has a lower evacuation conveyor belt, such that the folding boxes are pinched between and transported by the upper evacuation conveyor belt and the lower second conveyor belt in unison.

    METHOD FOR DETERMINING A DRYING PROCEDURE OF A PRINTED PRODUCT AND INDUSTRIAL PRINTING MACHINE

    公开(公告)号:US20250042182A1

    公开(公告)日:2025-02-06

    申请号:US18785194

    申请日:2024-07-26

    Applicant: BOBST MEX SA

    Abstract: The present invention generally relates to a method (34) for controlling a drying procedure of a printed product and an industrial printing machine (10). The printed product is manufactured by the industrial printing machine (10). An image to be printed is split into several image cells. For each image cell a total amount of ink to be used and an average lightness value of the ink to be printed within the respective image cell are determined. For each image cell a cell-dependent amount of infrared radiation to be applied for drying the ink to be used within the respective image cell is determined based on the total amount of ink to be used and the average lightness value determined in view of the respective image cell. A mixture of the drying procedure to be applied for drying the ink to be used within the image to be printed is determined based at least on the cell-dependent amounts of infrared radiation to be applied and a moving speed of the printed product. The mixture comprises at least a ratio of an overall amount of infrared radiation and an overall amount of convective heating.

    Centring block for centring a tooling board in a flat bed die-cutting, stripping or blanking machine and centring assembly

    公开(公告)号:US12122062B2

    公开(公告)日:2024-10-22

    申请号:US17759753

    申请日:2021-01-22

    Applicant: BOBST MEX SA

    CPC classification number: B26F1/44 B26F2001/4409

    Abstract: A centring block (12) for centring a tooling board (14) in a flat bed die-cutting, stripping or blanking machine is provided, the tooling board (14) having a protruding alignment element (30), comprising a first clamp (24) and a second clamp (26) which are arranged adjacent to each other to define a reception space (28) between them and which are mounted linearly moveable separately from each other in a direction perpendicular to a main extension plane of the tooling board (14) and at least one biasing means (34) which is configured to bias the first and the second clamps (24, 26) towards an aligning position against the tooling board (14), wherein each of the clamps (24, 26) comprises a stop portion (31) for restricting a movement of the tooling board (14) in an insertion and an opposite direction and to fix the tooling board (14) is in a centre position. Furthermore, a centring assembly (10) comprising a centring block (12) is provided.

    CLAMPING DEVICE FOR SUPPORTING A REEL HAVING A TUBULAR CORE

    公开(公告)号:US20240217770A1

    公开(公告)日:2024-07-04

    申请号:US18563659

    申请日:2022-05-30

    Applicant: BOBST MEX SA

    Abstract: A clamping device (18) for supporting a reel having a tubular core is described. The clamping device (18) comprises a base body (20) with a mounting interface (22) for fixing the base body (20) on a machine frame. Additionally, it has a carrier body (36) configured for being placed inside the tubular core of the reel. The carrier body (36) is rotatably supported on the base body (20) such that the carrier body (36) can rotate with respect to the base body (20) about an axis (38) of rotation. Moreover, a plurality of clamping elements (42) are coupled with an actuation mechanism (76) such that the clamping elements (42) can selectively protrude from an outer circumference of the carrier body (36) and selectively be retracted to be at least flush with the outer circumference of the carrier body (36). Furthermore, a brake mechanism is arranged between the base body (20) and the carrier body (36) for selectively decelerating or blocking the rotation of the carrier body (36) with respect to the base body (20).

    TOOL CLAMPING ASSEMBLY AND ASSEMBLY
    5.
    发明公开

    公开(公告)号:US20240042643A1

    公开(公告)日:2024-02-08

    申请号:US18257198

    申请日:2021-12-15

    Applicant: BOBST MEX SA

    CPC classification number: B26D7/1818 B26D2007/189

    Abstract: A tool clamping assembly (38) for clamping a blanking tool (40) intended to be used in a blanking station of a sheet processing machine has a frame (46) to which the blanking tool (40) is to be clamped and at least one clamping element (48). The frame (46) has an aligning mechanism adapted for aligning the blanking tool (40) in a first direction. Further, the frame (40) has at least one support surface (60) oriented to support the blanking tool (40) in a second direction which is perpendicular to the first direction, and at least one abutment surface (62) oriented to support the blanking tool (40) in a third direction which is perpendicular to the first and second directions. The clamping element (48) is displaceable between an open position and a clamping position, the clamping element (48) being adapted for clamping the blanking tool (40) against both the support surface (60) and the abutment surface (62).
    Further, a blanking tool assembly with such a tool clamping assembly is shown.

    SHEET PROCESSING MACHINE
    6.
    发明公开

    公开(公告)号:US20240034587A1

    公开(公告)日:2024-02-01

    申请号:US18257196

    申请日:2021-12-14

    Applicant: BOBST MEX SA

    Abstract: A sheet processing machine with a transfer mechanism for moving sheets along a handling direction of the sheet processing machine and with a waste evacuation device (36) for releasing the sheets. The transport mechanism comprises at least one sheet handling element (28) for moving a sheet. The waste evacuation device (36) further comprises a passage (46) formed between an opening surface (48) and a restraint surface (50). The at least one sheet handling element (28) comprises a first sliding element (68) and a second sliding element (70) being in contact with the opening surface (48) and the restraint surface (50), respectively, when passing the waste evacuation device (36).

    METHOD FOR ALIGNING PRINTING HEADS OF A PRINTING DEVICE AND PRINTING DEVICE

    公开(公告)号:US20230415491A1

    公开(公告)日:2023-12-28

    申请号:US18338724

    申请日:2023-06-21

    Applicant: BOBST MEX SA

    Inventor: Matthieu RICHARD

    CPC classification number: B41J2/2139 B41J2/2146 B41J2/2142

    Abstract: A method for aligning printing heads (12) of a printing device is provided, the printing heads (12) being two-dimensional printing heads (12) comprising a plurality of nozzles (30). In one method step, an ink drop is dispensed at a plurality of nozzles (30) of every printing head (12) simultaneously to print an image, preferably at all nozzles (30) of every printing head (12). In another step, the printed image is captured by a camera (20) whose resolution may be smaller than the print resolution. The position and/or orientation of each of the printing heads (12) is determined based on the image captured by the camera (20) and the deviation of the position and/or orientation of each printing head (12) from a target position and/or orientation is determined. The position and/or the orientation of the printing heads (12) is adjusted based on the determined deviation. Moreover, a printing device (10) is provided.

    SHEET MATERIAL PROCESSING UNIT AND SHEET MATERIAL PROCESSING MACHINE

    公开(公告)号:US20230234795A1

    公开(公告)日:2023-07-27

    申请号:US17999732

    申请日:2021-05-26

    Applicant: BOBST MEX SA

    CPC classification number: B65H5/085 B65H5/14 B65H29/003

    Abstract: A sheet material processing unit (20, 22, 24) comprises a transport system (32) for transporting sheets (12) or parts thereof from a respective input end (20i, 22i, 24i) to a respective output end (20o, 22o, 24o). A gripper unit (46) is releasably coupled to the transport system (32) and is configured for holding at least a part of one of the sheets (12). Additionally, at least one handover mechanism (47d, 47r) is provided being configured for decoupling the gripper unit (46) from the transport system (32) and providing the gripper unit (46) to a neighboring sheet material processing unit (20, 22, 24) and/or receiving a gripper unit (46) from a neighboring sheet material processing unit (20, 22, 24) and coupling the received gripper unit (46) to the corresponding transport system (32). Additionally, a sheet material processing machine (10) is presented which comprises at least two such sheet material processing units (20, 22, 24).

    Gripper bar body for a gripper carriage arrangement

    公开(公告)号:US11603276B2

    公开(公告)日:2023-03-14

    申请号:US17255390

    申请日:2019-07-04

    Applicant: BOBST MEX SA

    Abstract: The invention relates to a gripper bar body for a gripper bar in a gripper carriage arrangement in a machine for treating sheet material, the gripper bar body being configured to carry gripper brackets for movement between sheet gripping and sheet releasing positions. The gripper bar body is formed as a hollow structure comprising at least two different materials, the two different materials comprising at least a metal material and a composite material and the at least two different materials being at least partly arranged in a superposed manner. The resulting bar has a better resistance to wear than the ones of the state-of-the-art.

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