Patents Assigned to Bobst
  • 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
  • Publication number: 20240286863
    Abstract: A sheet processing machine (10) has a device (44) for monitoring sheets (12) and a transfer mechanism (26) for moving sheets (12) along a handling direction within the sheet processing machine (10). The device (44) comprises a light emitting element forming a light barrier in a sheet passage between the light emitting element and the light receiving element. A control unit (46) is connected to the light receiving element and is adapted to register each sheet (12) passing the sheet passage.
    Type: Application
    Filed: June 28, 2022
    Publication date: August 29, 2024
    Applicant: BOBST MEX SA
    Inventors: Daniel TAPIS, Christian ROMAGNOLI
  • Publication number: 20240270514
    Abstract: The present invention relates to a stacker module for a folder-gluer machine, the stacker module being located downstream of a transfer module in a direction of transportation of the folder-gluer machine and configured to receive folding boxes from a conveyor in the transfer module. The stacker module comprises a loading surface configured to receive a plurality of folding boxes in order to form a stack and to descend vertically as the number of folding boxes on the loading surface increases, and a linearly movable ejector configured to eject the stack from the loading surface. A front abutment guide configured to move between an abutment and a clearing position to retain and release the stack.
    Type: Application
    Filed: July 21, 2021
    Publication date: August 15, 2024
    Applicant: BOBST MEX SA
    Inventors: Olivier FAVRE, Raoul MICHOUD, Jonas DUBOUX, Olivier MUHLBAUER, Nicolas BRIZZI, Dimitri FAVINI, Pierre MALHERBE
  • Patent number: 12059887
    Abstract: A printing press (10) has at least one electric motor (14), which is arranged at a distance of less than 0.5 m from an emission source (18). At least one explosion protection wall (22) is provided, such that the thread measure (F) between the emission source (18) and the electric motor (14) is greater than 0.5 m.
    Type: Grant
    Filed: November 5, 2019
    Date of Patent: August 13, 2024
    Assignee: BOBST BIELEFELD GmbH
    Inventors: Johannes Schmidt, Dieter Betzmeier
  • Patent number: 12054348
    Abstract: A method for generating decks of sheet elements (18) comprises the steps of positioning a set of numerous sheet elements (18) onto a transport surface of a transport device (30) to partly overlap in transport direction (T). The set of overlapping sheet elements (18) is moved against a stop member (44). The stop member (44) is moved in the transport direction (T) with a lower velocity than a velocity of the transport surface. By maintaining displacement of sheet elements (18) which are not yet contacting stop member (44) all sheet elements are shifted towards stop member (44) to define a deck. The method is carried out by a corresponding device.
    Type: Grant
    Filed: December 10, 2020
    Date of Patent: August 6, 2024
    Assignee: BOBST MEX SA
    Inventor: Pierre Robadey
  • Publication number: 20240239626
    Abstract: A reel support assembly (14) for a web material processing machine is described. The reel support assembly (14) comprises a support frame (16) and at least a first support arm unit (34a) having at least one holding stub (40) for mounting a reel (12) on the first support arm unit (34a). Furthermore, the reel support assembly (14) comprises an elevator unit (24) having a support element (26) on which a reel (12) may be placed. The support element (26) is supported on the support frame (16) in a vertically movable manner. Additionally, a hotfoil stamping machine (10) is presented which comprises such a reel support assembly (14). The reel support assembly (14) is arranged at an upstream end of the hotfoil stamping machine (10) with respect to a web travelling direction.
    Type: Application
    Filed: May 30, 2022
    Publication date: July 18, 2024
    Applicant: BOBST MEX SA
    Inventors: Bernard JAQUET, Christophe RUCHET
  • Publication number: 20240227385
    Abstract: The invention relates to a rotary printing press (10) for printing substrates (18), comprising a substrate transport system (12) which comprises a winder station (14) and an unwinder station (16) configured to transport a substrate (18) during a printing process along a printing handling path (19) from the unwinder station (16) to the winder station (14), wherein the rotary printing press (10) further comprises at least one cleaning unit (46) which is assigned to the printing handling path (19) and adapted to remove ink from the front side of the substrate (18). Further, the invention relates to a method for cleaning a substrate (18).
    Type: Application
    Filed: January 4, 2024
    Publication date: July 11, 2024
    Applicant: BOBST BIELEFELD GMBH
    Inventors: Frank RUDOLPH, Marco CARRARA
  • Publication number: 20240227383
    Abstract: The invention relates to a sealing system, the sealing system comprising two first sealing members (62) which are each disposed at opposite lateral ends (56) of a doctor blade chamber (48), and two second sealing members (64) which are each disposed at opposite lateral ends (60) of the rotatable roller (46), wherein in operational mode, each of the two first sealing members (62) is in rotating contact with each of the two second sealing members (64) such that a leakage of ink at the opposite lateral ends (56) of the doctor blade chamber (48) is prevented.
    Type: Application
    Filed: January 4, 2024
    Publication date: July 11, 2024
    Applicant: BOBST BIELEFELD GMBH
    Inventor: Frank RUDOLPH
  • Publication number: 20240217770
    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).
    Type: Application
    Filed: May 30, 2022
    Publication date: July 4, 2024
    Applicant: BOBST MEX SA
    Inventor: Christophe RUCHET
  • Publication number: 20240217229
    Abstract: The invention relates to a method of aligning a plurality of printed motifs on a sheet (3) in a converting machine (10). An actual position (Pa_1) at a first sensor is defined as an initial reference position (P_ref1) for the sheet, and at least one displacement error (?d2) is calculated and compared to a first threshold (T1). If the displacement error is lower than the first threshold, then the angular position (?) of a printing cylinder (42) in the second flexographic printing unit (16b) is adjusted. However, if the error is higher than the first threshold, then at least part of the of the displacement error (?d_2) is corrected by modifying the speed (V) of a vacuum transfer unit located between the first printing unit and the second printing unit.
    Type: Application
    Filed: August 22, 2022
    Publication date: July 4, 2024
    Applicant: BOBST LYON
    Inventor: Abdelmalik BADREDDINE
  • Patent number: 12006172
    Abstract: A device for changing a sheet pile (14) in a sheet feeder (10) for a sheet treating machine comprises a main pile supporting unit (18) with a main pile actuating unit (20) for lifting and lowering the main pile supporting unit (18), wherein the main pile supporting unit (18) comprises a supporting surface (22) adapted to support a pallet (16) carrying a sheet pile (14). The device further comprises a residual pile supporting unit (24) with a residual pile actuating unit (26) for lifting and lowering the residual pile supporting unit (24).
    Type: Grant
    Filed: December 7, 2020
    Date of Patent: June 11, 2024
    Assignee: BOBST MEX SA
    Inventors: Jérémy Cordelier, Quentin Freymond
  • Patent number: 11993071
    Abstract: This document discloses a system to dispense a precise and continuous amount of ink for a large printing press. The dispensing system can be judiciously combined into a more elaborate dispensing system that uses two chambers with ink having a different density to dispense ink with a precise, adjustable and stable ink density. The dispensing system can be used to compensate the drifts in quality observed in presses when the speed, or any environmentable parameters vary.
    Type: Grant
    Filed: December 18, 2019
    Date of Patent: May 28, 2024
    Assignee: BOBST FIRENZE S.R.L.
    Inventors: Federico D'Annunzio, Antonio Bellosi, Andrea Melchiorri
  • Publication number: 20240167337
    Abstract: A die cutting machine has a mobile stair (14), the mobile stair (14) being able to assume a retracted position and an extended position, wherein in the extended position the mobile stair (14) is accessible by an operator. The mobile stair (14) is configured to be pushed into the retracted position by a transport rack (16) and pulled into the extended position when the transport rack (16) is pulled in the opposite direction. A coupling mechanism (30) is arranged on the mobile stair (14) that is configured to couple the transport rack (16) to the mobile stair (14) to pull the mobile stair (14) from the retracted into the extended position and to decouple the transport rack (16) from the mobile stair (14) when the transport rack (16) is moved from the die cutting machine (12) beyond the extended position of the mobile stair (14).
    Type: Application
    Filed: November 17, 2023
    Publication date: May 23, 2024
    Applicant: BOBST (SHANGHAI) LTD
    Inventors: Kyle ZHANG, Marco YU
  • Publication number: 20240166459
    Abstract: A positioning assembly (30) for positioning a sheet material, especially at an entry portion of a sheet material processing machine, is described. It comprises a support beam (32) on which at least a portion of a sheet material to be positioned can be placed and a plurality of clamping fingers (38). The support beam (32) is coupled to a drive unit (60) configured for translationally moving the support beam (32) along a travelling direction (y) of the sheet material, translationally moving the support beam (32) along a direction (x) transverse to the travelling direction (y) and rotationally moving the support beam (32) with respect to a pivot axis (z) being perpendicular to the traveling direction (y) and the transverse direction (x). Each of the clamping fingers (38) is coupled to an individual clamping finger actuation unit (40). Moreover, a sheet material processing machine comprising such a positioning assembly (30) is presented.
    Type: Application
    Filed: February 28, 2022
    Publication date: May 23, 2024
    Applicant: BOBST MEX SA
    Inventors: Christophe DE GAILLANDE, Marco CARDILLO
  • Publication number: 20240157480
    Abstract: A method for processing a cardboard (12) with a laser beam (14) is provided, wherein the laser beam (14) is moved over the cardboard (12) along a desired folding line (24) such that an upper layer of the cardboard (12) is ablated without cutting through the cardboard (12), wherein the laser beam (14) is adjusted such that the laser beam (14) is focused below the cardboard (12). Further, a device (10) for carrying out a method for processing a cardboard (12) with a laser beam (14) is provided.
    Type: Application
    Filed: March 8, 2022
    Publication date: May 16, 2024
    Applicant: BOBST MEX SA
    Inventors: Paul PIRON, Roberto VALTERIO
  • Patent number: 11981045
    Abstract: The present invention relates to an advance shaft transition apparatus for sheet processing equipment, which comprising: a plurality of advance shafts for feeding foils, the plurality of advance shafts being arranged along a horizontal direction; an advance shaft supporting frame, the advance shaft supporting frame supporting the ends of the advance shafts so that the advance shafts can freely rotate; and a lifting means, the lifting means is provided with a driving means and a transmission mechanism, the lifting means is connected to the advance shaft supporting frame to enable the advance shafts to move between a first position and a second position, at the first position, the advance shafts is operably rotated to feed the foil, and at the second position, the advance shafts being lifted up from the first position to leave a position where the foil can be fed.
    Type: Grant
    Filed: March 4, 2019
    Date of Patent: May 14, 2024
    Assignee: Bobst (Shanghai) Ltd
    Inventors: Jean-Claude Rebeaud, Peicong Qi, Haoming Song
  • Patent number: 11975502
    Abstract: The invention relates to a method for folding a corrugated cardboard blank (1) intended to form a folded box, the method comprising the following series of steps: i) supplying a blank (1) comprising at least one longitudinal crease (11); ii) applying a liquid to the longitudinal crease (11) so as to make the corrugated cardboard more flexible at the location of the longitudinal crease (11), the application being performed by means of a liquid application arrangement (130) comprising a liquid-ejection nozzle (134) provided with a liquid outlet; iii) folding the blank (1) around the longitudinal crease (11); wherein an aspiration of liquid is produced inside an aspiration compartment (163) of the liquid application arrangement (130) during step ii). The aspiration making it possible to remove any excess liquid which might not have been absorbed by the cardboard and/or the cardboard dust produced.
    Type: Grant
    Filed: July 9, 2020
    Date of Patent: May 7, 2024
    Assignee: BOBST LYON
    Inventors: Maxime Brenaut, Guillaume Martin-Bastenaire
  • Patent number: 11970353
    Abstract: A gripper assembly for recovering a layout (22) from a sheet material (12) is presented. It comprises a vacuum gripper (26) with a gripper body (32) on which an array of air flow openings (34a, 34b) is arranged. Air flow openings (34a) associated with one or more blanks (20) of the layout (22) are selectively open and air flow openings (34b) associated to waste (28) of the sheet material (12) are selectively closed. Additionally, an apparatus for recovering a layout (22) from a sheet material (12) comprising such a gripper assembly is described. Furthermore, a method for separating a layout (22) from waste (28) of a sheet material (12) is explained.
    Type: Grant
    Filed: March 17, 2020
    Date of Patent: April 30, 2024
    Assignee: BOBST MEX SA
    Inventors: Paul Hornick, Yannick Roulin, Roberto Valterio
  • Patent number: 11969989
    Abstract: A printing machine (10) comprises a doctor blade (14), a drive system (20) for urging the doctor blade (14) against a printing cylinder (16) of the printing machine (10), a sensor (32) adapted for sensing a force with which the doctor blade (14) is urged against the printing cylinder (16), and a mechanical locking element (34) adapted for locking the drive system (20) in its operating position. Further, a method of operating a printing machine (10) is presented.
    Type: Grant
    Filed: January 20, 2021
    Date of Patent: April 30, 2024
    Assignee: BOBST BIELEFELD GMBH
    Inventors: Michael Karakatsanis, Andreas Garbsch, Viktor Hildebrand