Patents Assigned to Bobst (Shanghai) Ltd
  • Publication number: 20230234320
    Abstract: A creasing tool (53) configured to create a crease line (11, 12) in a fibrous substrate (35), the creasing tool comprises a contact portion (50) having a base surface (57) and a relief portion (54), the relief portion is provided as a protruding pattern extending from the base surface (57) and is configured to be pressed against said fibrous substrate, wherein the relief portion (54) comprises a crease-line forming portion (56) and a peripheral deformation portion (59), and wherein the peripheral deformation portion comprises a plurality of discrete segments in the shape of curved transverse surface areas (58) extending in a direction (E) transverse to a longitudinal direction (L) of the crease-line forming portion (56).
    Type: Application
    Filed: May 26, 2021
    Publication date: July 27, 2023
    Applicant: Bobst Lyon
    Inventors: Christian LÉGIER, Julien DURAND
  • Publication number: 20230234795
    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).
    Type: Application
    Filed: May 26, 2021
    Publication date: July 27, 2023
    Applicant: BOBST MEX SA
    Inventor: Christophe DE GAILLANDE
  • Patent number: 11691410
    Abstract: A hot foil stamping press (10) comprises a platen press (16), with a supporting plate (22) comprising a base plate (26) and a compensating plate (28) being rotatably attached to the base plate (26) for switching between an operating position and a makeready position and a hook element (38) comprising a base part and a top part being arranged at an angle relative to the base part. The hook element (38) is rotatably attached to a door (30) of the platen press (16) by a fixation axle for switching between a releasing position and a securing position of the hook element, wherein the top part retains the compensating plate (28) in its makeready position when the hook element (38) is in its securing position.
    Type: Grant
    Filed: June 13, 2022
    Date of Patent: July 4, 2023
    Assignee: BOBST MEX SA
    Inventors: Roland Vodoz, David Gentil
  • Patent number: 11691411
    Abstract: A method for attaching a printing plate (12), especially a flexographic printing plate, to a printing cylinder (14) is described. In a first step, the printing plate (12) is provided in a substantially flat condition. Thereafter, an outer circumference of the printing cylinder (14) is arranged adjacent to an edge of the printing plate (12). Subsequently, the printing cylinder (14) is translatorily moved over the printing plate (12) while rotating such that the printing plate (12) is rolled-up on the printing cylinder (14). Additionally, an apparatus (10) for attaching a printing plate (12) to a printing cylinder (14) is presented. The apparatus (10) comprises a printing plate support unit (16) having a substantially flat support surface (18) for supporting the printing plate (12) to be mounted on the printing cylinder (14), and a printing cylinder support unit (36) for supporting and moving the printing cylinder (14).
    Type: Grant
    Filed: November 18, 2021
    Date of Patent: July 4, 2023
    Assignee: BOBST BIELEFELD GMBH
    Inventor: Frank Rudolph
  • Patent number: 11691409
    Abstract: The invention relates to a mobile handling carriage (9) for handling a rotary roll (10) in a printing unit (2), including: a mobile chassis (90); a support member (91) for supporting the roll (10); a first drive device (902) configured to drive the support member (91) in translation in a vertical direction; an actuator (92) mounted on the support member (91) and configured to collaborate with the roll (10) positioned a distance above the support member (91); a second drive device (910) configured to drive the actuator (92) in translation in a longitudinal direction; a control circuit configured to control a first sequence including, in succession: a raising of the support member (91); a longitudinal translation of the support member (91) in a first direction; a lowering of the support member (91); a longitudinal translation of the actuator in the first direction.
    Type: Grant
    Filed: February 19, 2020
    Date of Patent: July 4, 2023
    Assignee: Bobst Lyon
    Inventor: Eric Vernay
  • Publication number: 20230182936
    Abstract: The invention relates to grasping system comprising a grasping head (15) for a sheet transporting device, in particular for transporting an insert sheet to be inserted between rows of folding boxes in a receptacle, the grasping head (15) having at least one support frame (80) and a plurality of aspiration elements (17, 18). The aspiration elements (17, 18) are mounted on holding elements (50) which are received on the support frame (80) so as to be displaceable with respect to the support frame (80).
    Type: Application
    Filed: March 18, 2021
    Publication date: June 15, 2023
    Applicant: BOBST MEX SA
    Inventor: Christophe STEINER
  • Patent number: 11660774
    Abstract: The invention relates to a device (310) for holding a sheet-like element (10) during the stage of introducing it into a workstation (200, 300, 400) of a forming machine (1), such as a waste-ejection station (300), the said holding device (310) comprising a suction member (320) configured so as to partially retain each sheet (10) by its rear part during the stage when the said sheet (10) is introduced into the said workstation (200, 300, 400), characterized in that the suction member (320) has at least two motorized fans (13) with propellers (14) installed transversely at the entrance to the workstation (200, 300, 400), beneath the plane (P) along which the sheet-like elements move, the axes of rotation (A) of the propellers (14) of the fans (13) being substantially parallel to one another and perpendicular to the plane (P) along which the sheet-like elements move, the direction of rotation and the inclination of the propellers (14) being configured so as to generate a flow of air capable of applying suction t
    Type: Grant
    Filed: December 21, 2017
    Date of Patent: May 30, 2023
    Assignee: Bobst (Shanghai) Ltd
    Inventors: Michael Cochard, Qiang Fang, Nicolas Panchaud, Mingliang Zhou
  • Publication number: 20230116702
    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: Application
    Filed: February 26, 2021
    Publication date: April 13, 2023
    Applicant: BOBST MEX SA
    Inventors: Patrice CHATRY, Maude STEINER
  • Patent number: 11613387
    Abstract: A vibrating device (14) ensures the ordered rearrangement of folding boxes (3) in a receptacle (2) for an evacuation conveyor (8), provided with driving elements (12) whose vertices define a horizontal transport plane (S2).
    Type: Grant
    Filed: May 15, 2017
    Date of Patent: March 28, 2023
    Assignee: BOBST MEX SA
    Inventor: Nicolas Brizzi
  • Patent number: 11603276
    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.
    Type: Grant
    Filed: July 4, 2019
    Date of Patent: March 14, 2023
    Assignee: BOBST MEX SA
    Inventors: Stephane Chesaux, Jean-Claude Rebeaud
  • Publication number: 20230065113
    Abstract: A tool insert for a machine, in particular a cutting, punching and/or folding machine, is disclosed. The tool insert (24) has an identification element (38) comprising tool information about the type of the tool insert (24) and/or about the area of application of the tool insert (24). The identification element (38) is machine-readable such that the tool information is transmitted to the machine when the machine reads out the identification element. Further, a machine, a machine system and a method for operating a machine are disclosed.
    Type: Application
    Filed: February 2, 2021
    Publication date: March 2, 2023
    Applicant: BOBST MEX SA
    Inventors: Alexandre DE KALBERMATTEN, Alexandre VOLERY
  • Publication number: 20230066701
    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: Application
    Filed: January 20, 2021
    Publication date: March 2, 2023
    Applicant: BOBST BIELEFELD GMBH
    Inventors: Michael KARAKATSANIS, Andreas GARBSCH, Viktor HILDEBRAND
  • Publication number: 20230056645
    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: Application
    Filed: January 22, 2021
    Publication date: February 23, 2023
    Applicant: BOBST MEX SA
    Inventors: Shelly LIU, Bernard JAQUET
  • Publication number: 20230057628
    Abstract: A device for storing a sheet pile in a converting machine (10) comprises a transfer mechanism (28) for delivering sheets (22) into a piling area (26) of the device (22), and a sampling plate (44) which is adjustable between a sampling position and an access position, wherein the top of the piling area (26) is covered by the sampling plate (44) when the sampling plate (44) is in the sampling position and the top of the piling area (26) is free when the sampling plate (44) is in the access position.
    Type: Application
    Filed: January 28, 2021
    Publication date: February 23, 2023
    Applicant: BOBST (SHANGHAI) LTD
    Inventors: Shelly LIU, Justing ZHAI, John WANG, Chao SUN
  • Publication number: 20230045510
    Abstract: A doctor blade system of a printing machine comprises a doctor blade (12), a blade support (14) and a clamping element (16), wherein the doctor blade (12) is arranged at a contact surface (24) on a front side (20) of the blade support (14) and pressed against the contact surface (24) by a pressing area (34) of the clamping element (16). The clamping element (16) has a bearing surface (40) arranged at a backside (27) of the blade support (14).
    Type: Application
    Filed: January 6, 2021
    Publication date: February 9, 2023
    Applicant: BOBST BIELEFELD GMBH
    Inventors: Volker CASPARI, Johannes SCHMIDT
  • Patent number: 11565493
    Abstract: The invention relates to a method of creasing sheets (12) by using a creasing tool (14, 20, 21) cooperating with a counter element (22, 23), comprising the following steps: a creasing plate blank (24?) is provided with at least one creasing projection (26) by plastically deforming the material of the blank (24?) so as to form a creasing plate (24), the creasing plate (24) is mounted to a creasing tool (14, 20, 21), sheets (12) to be provided with at least one crease are advanced through a gap between the creasing tool (14, 20, 21) and the counter element (22, 23).
    Type: Grant
    Filed: June 25, 2018
    Date of Patent: January 31, 2023
    Assignee: BOBST MEX SA
    Inventor: Roberto Valterio
  • Publication number: 20230021706
    Abstract: A mounting device (12) for mounting a tooling board (14) in a flat bed die-cutting, stripping or blanking machine comprises at least one first clamping jaw (38) which is moveable from an unlocked position, in which a tooling board (14) may be removed from or inserted into the machine, to a locked position, in which a tooling board (14) may be fixed in the machine, at least one actuator (18) which comprises a moveable piston (54) and a piston rod (56) coupled to the piston (54), wherein the actuator (18) is configured to transfer the at least one first clamping jaw (38) from the locked position to the unlocked position, and wherein the actuator (18) is coupled to the at least one clamping jaw (38) via an attachment point (60) which has a fixed position relative to the first clamping jaw (38). Furthermore, a mounting assembly (10) comprising a mounting device (12) is provided.
    Type: Application
    Filed: January 22, 2021
    Publication date: January 26, 2023
    Applicant: BOBST MEX SA
    Inventors: Shelly LIU, Bernard JAQUET
  • Patent number: 11559980
    Abstract: The present invention relates to a dryer for treating a moving printing web in a rotary printing press with gas, having a nozzle body. The dryer according to the invention is characterized in that the nozzle body has at least one opening for the exit of heated gas and has at least one opening for recirculating the cooled gas.
    Type: Grant
    Filed: February 26, 2019
    Date of Patent: January 24, 2023
    Assignee: BOBST BIELEFELD GMBH
    Inventor: Rene Heinze
  • Publication number: 20230018771
    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: Application
    Filed: December 10, 2020
    Publication date: January 19, 2023
    Applicant: BOBST MEX SA
    Inventor: Pierre ROBADEY
  • Publication number: 20230009808
    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: Application
    Filed: December 10, 2020
    Publication date: January 12, 2023
    Applicant: BOBST MEX SA
    Inventor: Pierre ROBADEY