Patents Assigned to Bobst Mex SA
  • Publication number: 20250144907
    Abstract: The present invention relates to inspection system (46) for checking braille characters in a converting machine (1), the inspection system comprises an image sensor (48) configured to capture at least one image of a first braille tool (36) provided with embossing protrusions (40), a memory (52) and a control unit (51). The control unit is configured to determine an actual braille lettering sequence (Sa) from the at least one image and compare the actual braille lettering sequence to a desired braille lettering sequence stored in the memory.
    Type: Application
    Filed: February 10, 2023
    Publication date: May 8, 2025
    Applicant: BOBST MEX SA
    Inventors: Alexandre DE KALBERMATTEN, Thomas HOFMANN
  • Patent number: 12291012
    Abstract: A hot foil stamping press with a pressing table (10) on which a sheet can be advanced, a pressing system (20) for pressing a foil (14) onto the sheet, a guiding system (18) for guiding the foil (14) over the sheet, the guiding system (18) defining a foil transportation path which extends across the path along which the sheet is being advanced, a holder (11) for receiving a supply (12) of foil, and a discarding system (22) for the used foil, the holder being arranged at an operator side of the press.
    Type: Grant
    Filed: March 20, 2019
    Date of Patent: May 6, 2025
    Assignee: BOBST MEX SA
    Inventors: Christophe De Gaillande, Christoph Vollmer, Haoming Song
  • Patent number: 12290878
    Abstract: The present invention discloses a method to calibrate a laser cutting machine without stopping the production. The method is adapted to laser cutting machine which use a conveyor belt to convey the sheets while cutting them with the laser. The method allows to place calibration marks at locations on the sheet that are convenient according to the production job, thereby minimising the waste of material.
    Type: Grant
    Filed: March 18, 2020
    Date of Patent: May 6, 2025
    Assignee: BOBST MEX SA
    Inventors: Philippe Guglielmetti, Paul Piron
  • Publication number: 20250122038
    Abstract: The present invention relates to a feeder module for discharging sheets into a converting machine. The feeder module comprises a movable discharge conveyor comprising a plurality of belt conveyors which are configured to move between a discharge position (DP) in which the belt conveyors are contacting the lowermost positioned sheet in the stack and discharges said sheet, and a clearing position (CP) in which the conveyor belts are located underneath the loading surface.
    Type: Application
    Filed: October 10, 2024
    Publication date: April 17, 2025
    Applicant: BOBST MEX SA
    Inventors: Gaƫl JAQUEMET, Arnaud DEKERVEL
  • Publication number: 20250122035
    Abstract: The present invention relates to a feeder module for a converting machine, the feeder module comprises an upper feeder assembly, and a lower feeder assembly comprising a loading surface configured to receive a stack of sheets. The upper feeder assembly (20) comprises a gauge (32), wherein a distance (d1) between a vertical distal end of the gauge and the loading surface defines a clearance through which a lowermost positioned sheet in the stack can pass at a time. A feed roll assembly (34) located downstream of the gauge comprises an upper feed roller (35a) and a lower feed roller (35b). The lower feeder assembly (22) and the lower feed roller are displaceable in the vertical direction.
    Type: Application
    Filed: October 10, 2024
    Publication date: April 17, 2025
    Applicant: BOBST MEX SA
    Inventors: Arnaud DEKERVEL, Eric KREBS
  • Publication number: 20250050613
    Abstract: A method is provided for cutting, creasing and/or embossing a cardboard in a cardboard processing machine (10) comprising a rotary die cutting machine (12), the rotary die cutting machine (12) comprising a first rotating cylinder (22) and a second rotating cylinder (24), wherein each of the first and the second cylinder (22, 24) has a cutting, creasing and/or embossing area (26) and a compensation area (28) that extends along the circumference of the respective cylinder (22, 24). A continuous cardboard web (11) being printed with a plurality of repetitive printed sections (40, 41, 42) is run between the two cylinders (22, 24) in a processing direction, wherein a printing length (l) of a printed section (40, 41, 42) is shorter than a circumference of the rotating cylinders (22, 24).
    Type: Application
    Filed: August 8, 2024
    Publication date: February 13, 2025
    Applicant: BOBST MEX SA
    Inventors: Wolfgang RUOFF, Ludovico FRATI
  • Publication number: 20250051126
    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.
    Type: Application
    Filed: December 20, 2022
    Publication date: February 13, 2025
    Applicant: BOBST MEX SA
    Inventors: Bryan CARDOSO, Jeremy LAUTH
  • Publication number: 20250042685
    Abstract: The present invention relates to a conveyor system (30) for transporting blanks (2?) in a converting machine (1). The conveyor system comprises an endless first conveyor belt (32a) and a support structure (38). The support structure (38) comprising a plurality of rollers (56), each roller being attached to a roller frame (54) and arranged in a line, the roller frames being connected to each other by a connection mechanism (62). The connection mechanism (62) is extendable and retractable in the direction of transportation, such that a contact length (Lc) of the first conveyor belt is modified and all rollers remain in contact with the first conveyor belt.
    Type: Application
    Filed: December 20, 2022
    Publication date: February 6, 2025
    Applicant: BOBST MEX SA
    Inventors: Bryan CARDOSO, Jeremy LAUTH
  • Publication number: 20250042182
    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.
    Type: Application
    Filed: July 26, 2024
    Publication date: February 6, 2025
    Applicant: BOBST MEX SA
    Inventor: Francisco Javier PEREZ GELLIDA
  • Publication number: 20250033918
    Abstract: The invention relates to a blanking station comprising a blanking tool (12), at least one blank receiving unit (14, 16) for receiving and piling of blanks (20) in a blank collecting space (22) in a piling direction, and at least one flexible guide (18), located between the blanking tool (12) and the receiving unit (14, 16), wherein the flexible guide (18) comprises at least one guiding surface (32) adapted for guiding the blanks (20), being oriented in parallel to the piling direction and arranged so as to define an outer contour of the blank collecting space (22), and wherein the flexible guide (18) further comprises at least one flexible portion (28), located in proximity to the blank receiving unit (14, 16), wherein the flexible portion (28) is elastically deformable in a first direction along the outer contour of the blank collecting space (22) and wherein the flexible portion (28) has a lower stiffness in the first direction than in a second direction perpendicular to the outer contour of the blank colle
    Type: Application
    Filed: December 16, 2022
    Publication date: January 30, 2025
    Applicant: BOBST MEX SA
    Inventors: Tim LAIR, Paulo FERREIRA
  • Patent number: 12208983
    Abstract: A stacking device for generating decks (10) of sheet elements (12) comprises a transport device with an upper side onto which sheet elements (12) are arranged on separate sheet sections (50). Each sheet section (50) is adapted to transport at least one sheet element (12). The upper side has a height offset between adjacent sheet sections (50). A displacement element shifts sheet elements (12) of one sheet section (50) onto an adjacent sheet section (50) in order to produce the deck (10) of sheet elements (12).
    Type: Grant
    Filed: December 10, 2020
    Date of Patent: January 28, 2025
    Assignee: BOBST MEX SA
    Inventor: Pierre Robadey
  • Patent number: 12172859
    Abstract: A sheet pile supporting assembly (24) for a sheet material processing machine is presented. It comprises a plurality of sheet pile supporting bars (28) and a movable guiding means for selectively moving one or more of the sheet pile supporting bars (28) from a retracted position to an extended position. Additionally, an automatic selection unit (30) is provided for automatically selecting the sheet pile supporting bars (28) to be moved to the extended position and for coupling the selected sheet pile supporting bars (28) to the movable guiding means. Moreover, a method for operating a sheet pile supporting assembly (24) for a sheet material processing machine is explained.
    Type: Grant
    Filed: February 26, 2021
    Date of Patent: December 24, 2024
    Assignee: BOBST MEX SA
    Inventors: Patrice Chatry, Maude Steiner
  • Publication number: 20240367431
    Abstract: The present invention generally relates to an industrial printing device (10) and an industrial printing process (42). The industrial printing device (10) comprises at least an input stage (12), an output stage (14), a cutting stage (18), and a printer stage (20). The printer stage (20) is arranged between the input stage (12) and the output stage (14). The cutting stage (18) is arranged upstream of the printer stage (20). The cutting stage (18) comprises a laser cutting device (19) such that material (16) is continuously processable between the input stage (12) and the output stage (14) by at least the cutting stage (18) and the printer stage (20).
    Type: Application
    Filed: April 23, 2024
    Publication date: November 7, 2024
    Applicant: BOBST MEX SA
    Inventor: Stylianos MANOUSAKIS
  • Publication number: 20240359417
    Abstract: A packaging material processing machine (10) is described. It comprises an upper processing tool (12) and a lower processing tool (14) being configured for interacting with each other in order to process the sheet material. Moreover, a drive unit (18) is provided which comprises an electric machine (20) and a flywheel (22). An electrical supply unit (28) is electrically connected to the electric machine (20) such that the electric machine (20) is operable as an electric motor. Moreover, an electrical energy recovery unit (44) is electrically connected to the electric machine (20) such that the energy recovery unit (44) is able to store or transfer electrical 10 energy provided by the electric machine (20) operating as an electric generator, the flywheel (22) being rigidly connected to the drive unit (18). Additionally, a method for operating a packaging material processing machine (10) is presented.
    Type: Application
    Filed: March 15, 2022
    Publication date: October 31, 2024
    Applicant: BOBST MEX SA
    Inventors: Gilbert PYTHON, Pierre MALHERBE
  • Patent number: 12122062
    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.
    Type: Grant
    Filed: January 22, 2021
    Date of Patent: October 22, 2024
    Assignee: BOBST MEX SA
    Inventors: Shelly Liu, Bernard Jaquet
  • Publication number: 20240326405
    Abstract: The invention relates to an inspection device (42) for checking the position of at least one coating on a blank (1) transported through a converting machine (10). The inspection device comprising a camera (49) configured to capture an image of a portion of the blank provided with a reference mark (30) comprising at least one coating, An optical axis (A) of the camera is arranged at first angle ((p) in relation to a vertical axis (V) defined by a normal vector (N) of a surface of the blank (1). An illumination system (50) is configured to emit incident light rays towards a measuring point (Pm) on the blank 1. The incident light rays from the illumination system are directed to the reference mark and specular reflected light rays from the reference mark are captured by the camera.
    Type: Application
    Filed: July 14, 2022
    Publication date: October 3, 2024
    Applicant: BOBST MEX SA
    Inventors: Thomas HOFMANN, Francis PILLOUD
  • Publication number: 20240326459
    Abstract: The invention relates to an inkjet printing system (10) and method for controlling the jetting ink viscosity. A printing head (16) comprises a first pressure sensor (20) located at a fluid inlet (26) and a second pressure sensor (22) located at a fluid outlet (28). A control unit (24) is configured to retrieve the volumetric flow (Q) from a supply pump (18) of the inkjet printing system (10) and the inlet and outlet pressures (P_in, P_out) from the pressure sensors (20, 22). The control unit (24) is further configured to calculate an actual flow resistance (R_a) and a required temperature change (?T) of the ink such that a calibrated ink viscosity (?_ref) is obtained.
    Type: Application
    Filed: July 7, 2022
    Publication date: October 3, 2024
    Applicant: BOBST MEX SA
    Inventor: Francisco Javier PEREZ GELLIDA
  • Patent number: 12098045
    Abstract: The present invention relates to a stacker module (28) for a folder-gluer machine (1). The stacker module comprises a loading surface (90) configured to receive a plurality of folding boxes and to descend vertically as the number of folding boxes on the loading surface increases, and a linearly movable ejector (76) configured to be moved from a retracted position (RP) to an extended position (DP). The stacker further comprises an upper guide (110), configured to move between a clearing position (CP) which is vertically distant from the upper surface of the stack, and a guiding position (GP), in which the upper guide is located closer to the upper surface of the stack, and wherein the upper guide is in the guiding position when the ejector is moved from the retracted position to the evacuation position.
    Type: Grant
    Filed: July 21, 2021
    Date of Patent: September 24, 2024
    Assignee: BOBST MEX SA
    Inventors: Olivier Favre, Raoul Michoud, Jonas Duboux, Olivier Muhlbauer, Nicolas Brizzi, Dimitri Favini, Pierre Malherbe
  • Publication number: 20240300234
    Abstract: The invention relates to an inspection device (42) for a converting machine (10), the inspection device comprising a camera (49) configured to capture an image of a portion of a blank (1) provided with a reference mark (30). The camera is arranged inside an external housing shroud (70), and wherein a thermoelectric element (78) is arranged between the camera and the external housing shroud.
    Type: Application
    Filed: July 14, 2022
    Publication date: September 12, 2024
    Applicant: BOBST MEX SA
    Inventors: Thomas HOFMANN, Mauro TRUSCELLO, Felix MATHYS
  • Publication number: 20240300136
    Abstract: A sheet material processing tool (14), especially a cardboard or paper processing tool, is described. It comprises a carrier frame (26), having a front frame member (28) extending substantially perpendicular to a processing direction (P) for a sheet material to be processed, a rear frame member (30) extending substantially parallel to the front frame member (28), a first lateral frame member (32) connecting corresponding first ends (28a, 30a) of the front frame member (28) and the rear frame member (30) and a second lateral frame member (34) connecting corresponding second ends (28b, 30b) of the front frame member (28) and the rear frame member (30). Furthermore, a first multi-purpose interface (54) is provided for selectively connecting a first tool element for processing the sheet material to the carrier frame (26). Additionally, a sheet material processing station is presented. It comprises a support structure, wherein a sheet material processing tool(14) is connected to the support structure.
    Type: Application
    Filed: January 25, 2022
    Publication date: September 12, 2024
    Applicant: BOBST MEX SA
    Inventors: Arnaud DEKERVEL, Patrice CHATRY