Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
  • B41F—PRINTING MACHINES OR PRESSES
  • B41F17/00—Printing apparatus or machines of special types or for particular purposes, not otherwise provided for
  • B41F17/24—Printing apparatus or machines of special types or for particular purposes, not otherwise provided for for printing on flat surfaces of polyhedral articles
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
  • B41F—PRINTING MACHINES OR PRESSES
  • B41F21/00—Devices for conveying sheets through printing apparatus or machines
  • B41F21/08—Combinations of endless conveyors and grippers
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
  • B41F—PRINTING MACHINES OR PRESSES
  • B41F21/00—Devices for conveying sheets through printing apparatus or machines
  • B41F21/12—Adjusting leading edges, e.g. front stops
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
  • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
  • B41J13/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, specially adapted for supporting or handling copy material in short lengths, e.g. sheets
  • B41J13/0009—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, specially adapted for supporting or handling copy material in short lengths, e.g. sheets control of the transport of the copy material
  • B41J13/0018—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, specially adapted for supporting or handling copy material in short lengths, e.g. sheets control of the transport of the copy material in the sheet input section of automatic paper handling systems
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
  • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
  • B41J13/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, specially adapted for supporting or handling copy material in short lengths, e.g. sheets
  • B41J13/08—Conveyor bands or like feeding devices
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
  • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
  • B41J3/00—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed
  • B41J3/407—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed for marking on special material
  • B41J3/413—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed for marking on special material for metal
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
  • B65H5/00—Feeding articles separated from piles; Feeding articles to machines
  • B65H5/08—Feeding articles separated from piles; Feeding articles to machines by grippers, e.g. suction grippers
  • B65H5/10—Reciprocating or oscillating grippers, e.g. suction or gripper tables
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
  • B65H5/00—Feeding articles separated from piles; Feeding articles to machines
  • B65H5/08—Feeding articles separated from piles; Feeding articles to machines by grippers, e.g. suction grippers
  • B65H5/14—Details of grippers; Actuating-mechanisms therefor
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
  • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
  • B41J11/00—Devices or arrangements  of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form
  • B41J11/0085—Using suction for maintaining printing material flat
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
  • B65H2301/00—Handling processes for sheets or webs
  • B65H2301/30—Orientation, displacement, position of the handled material
  • B65H2301/34—Modifying, selecting, changing direction of displacement
  • B65H2301/341—Modifying, selecting, changing direction of displacement without change of plane of displacement
  • B65H2301/3411—Right angle arrangement, i.e. 90 degrees
  • B65H2301/34112—Right angle arrangement, i.e. 90 degrees changing leading edge
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
  • B65H2405/00—Parts for holding the handled material
  • B65H2405/50—Gripping means
  • B65H2405/52—Gripping means reciprocating
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
  • B65H2405/00—Parts for holding the handled material
  • B65H2405/50—Gripping means
  • B65H2405/58—Means for achieving gripping/releasing operation
  • B65H2405/581—Means for achieving gripping/releasing operation moving only one of the gripping parts towards the other
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
  • B65H2405/00—Parts for holding the handled material
  • B65H2405/50—Gripping means
  • B65H2405/58—Means for achieving gripping/releasing operation
  • B65H2405/583—Details of gripper orientation
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
  • B65H2701/00—Handled material; Storage means
  • B65H2701/10—Handled articles or webs
  • B65H2701/17—Nature of material
  • B65H2701/173—Metal
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
  • B65H2801/00—Application field
  • B65H2801/03—Image reproduction devices
  • B65H2801/21—Industrial-size printers, e.g. rotary printing press

Definitions

• the invention relates to a machine arrangement with a metal printing machine and with a conveyor device feeding at least one metal sheet to the metal printing machine, as well as with a metal sheet feeder providing the relevant metal sheet according to the preamble of claim 1.
• a conveyor system for horizontal transport of metal sheets comprising a control unit, wherein this conveyor system has a first linear transport path and at least one second linear transport path in a transport plane, wherein each of the second transport paths has at least one transport belt for transporting the metal sheets, wherein the first transport path is designed as a table-shaped transport device and has a flat plate in the transport plane of the metal sheets, wherein this plate has at least one transport belt in a strip-shaped central region extending longitudinally to the transport direction of the metal sheets and a belt-free edge region on both sides of this central region, wherein the at least one second transport path is arranged in the transport plane at right angles to the first transport path, wherein the plate of the transport device forming the first transport path has at least one recess extending rectilinearly transversely to the transport direction of the metal sheets in the edge region facing the respective second transport path, wherein each of these recesses is arranged in alignment with one of the transport belts of the
• a production line for processing metal sheets which has a plurality of different machine units, wherein a transport path of the metal sheets through this production line is linear, wherein a metal printing machine and/or a painting machine and/or a loading station and/or a dryer and/or an unloading station are provided successively as machine units in the transport direction of the metal sheets to be processed, wherein at least two machine units each have at least one transport device for transporting at least one metal sheet lying individually on a transport plane.
• a production line for processing metal sheets comprising a metal printing machine and/or a painting machine, wherein the metal sheets are transported along a linear transport path by means of transport devices having transport belts.
• a device for the transverse conveyance of stacks of sheet-like material, in particular paper stacks, which are fed from a feed conveyor and transferred to a discharge conveyor running substantially at a right angle to the feed conveyor, wherein a discontinuously drivable transfer conveyor is provided which receives the paper stacks from the feed conveyor on the one hand and transfers them to the discharge conveyor on the other hand, which is equipped with blowing air means which act on the support surface of the paper stacks during a standstill phase.
• a machine for handling metal sheets is known, which is characterized by a belt feed conveyor with a belt tensioning arrangement and a support, wherein the support allows the belt elements to be moved laterally from the A machine which is easily removable for replacement, wherein front end sections in their operating position are enabled to pivot between two different levels, the normal raised position enabling the sheets to be advanced via a pivoting gate to a horizontal transfer conveyor, the transfer conveyor conveying the sheets via a reject stacking area for deposit in one or more forwardly spaced stacking areas, and wherein the lowered position of an end section of the conveyor enables sheets to be advanced to a downwardly and forwardly inclined conveyor leading to a reject stacking area, the pivoting gate in the lowered position serving to bridge the gap between the outlet end of the infeed conveyor and the inlet end of the transfer conveyor, and wherein the gate in the raised position opens the gap allowing access to the inclined reject conveyor when the end section of the infeed conveyor is pivoted to the lowered position.
• the invention is based on the object of creating a machine arrangement with a metal printing press and with a conveyor device feeding at least one metal sheet to the metal printing press and with a metal sheet feeder providing the metal sheet in question, wherein a positioning accuracy of the metal sheet to be printed on a transport device transporting this metal sheet to a printing unit of the metal printing press is improved.
• the advantages achievable with the invention are, in particular, that the positioning accuracy of the metal sheet to be printed on a transport device transporting this metal sheet to a printing unit of the metal printing machine and thus to a printing position of this printing unit is improved in comparison, for example, to a device with suction grippers The achievable positioning accuracy is improved. Suction grippers always allow a certain degree of displacement of the sheet metal to be printed during transport, which is avoided by the solution proposed by the invention. Further advantages will become apparent from the following description.
• Fig. 1 shows, in a perspective view, an example of a machine arrangement with a metal printing press 02 and with a conveyor device 11 feeding at least one metal sheet 01 to the metal printing press 02, as well as with a metal sheet feeder 03 providing the respective metal sheet 01.
• the metal sheet feeder 03 is designed to deliver the respective metal sheet 01, which is formed in a rectangular format, lying on a first transport device 04 along a linear first transport path to the conveyor device 11.
• the metal sheet feeder 03 is equipped with, for example, at least one stack of, in particular, unprinted metal sheets 01, wherein the metal sheet feeder 03 preferably the metal sheets 01 are taken individually from the relevant stack using a gripping device under machine program control and placed sequentially on the first transport device 04, which for example has at least one circulating suction belt.
• the metal printing press 02 also has a transport device 06, wherein this transport device 06 is referred to below as a second transport device 06 in the context of the proposed machine arrangement.
• This second transport device 06 is designed for example as a conveyor belt circulating in a specific direction, i.e. in a transport direction T, preferably as a suction belt, wherein the transport direction T of the second transport device 06 is defined in such a way that after a metal sheet 01 to be printed has been taken over from the conveyor device 11 arranged upstream of the second transport device 06, it feeds this metal sheet 01 lying down along a linear second transport path to at least one printing unit 07 of the metal printing press 02.
• the first transport path and the second transport path are arranged parallel to one another at a distance A.
• the metal sheet feeder 03 is arranged longitudinally to the metal printing machine 02.
• the conveyor device 11 is designed, for example, as a conveyor table preferably having several sub-areas, wherein these sub-areas divide the total surface of the conveyor table into fields arranged in columns and/or rows.
• the respective metal sheet 01 to be printed is taken over by the first transport device 04 into one of the sub-areas of the conveyor table and then transported lying down from the first transport path to the second transport path.
• the conveyor device 11 thus transfers the respective metal sheet 01 to be printed to the second transport device 06 and, in doing so, bridges the distance A between the first transport path and the second transport path by this conveyor device 11 conveying the respective metal sheet 01 to be printed transversely to the two aforementioned transport paths.
• the conveyor device 11 conveys the respective metal sheet 01 to be printed to bridge the distance A between the two
• the aforementioned transport paths are preferably linear, e.g., via a sliding surface formed in each of the sub-regions of the conveyor table, or preferably on a plurality of rails arranged parallel to one another, each equipped with at least one row of rollers arranged successively in the transport direction.
• the respective sliding surface can be supported, e.g., by an air cushion formed there that supports the respective metal sheet 01.
• These air cushions are preferably generated in each of the sub-regions of the conveyor table, in particular by an arrangement of a plurality of Venturi nozzles that support the transport of the respective metal sheet 01 in the transport direction.
• the conveyor device 11 has at least one gripper bar 12 with two positioning marks 13 arranged at a distance from one another and a fixing device 14 arranged between the two positioning marks 13, each for the sheet metal panel 01 to be transported from the first transport path to the second transport path.
• the two positioning marks 13 are preferably each designed as a stop that is vertically perpendicular to the first transport path, the metal sheet 01 to be transported being transported by the first transport device 04 belonging to the metal sheet feeder 03 until its front edge abuts the two positioning marks 13.
• the front edge of the metal sheet 01 to be printed is usually its reference edge, to which the printing positions for a print image to be created by means of the printing unit 07 of the metal printing press 02 refer.
• the front edge of the metal sheet 01 to be printed is therefore usually directed in the transport direction T of the metal sheet 01 to be transported by the second transport device 06 belonging to the metal printing press 02.
• the fixing device 14 of the gripper bar 12 In the operating state of the attachment of the front edge of the sheet metal plate 01 to be transported to the two positioning marks 13, the fixing device 14 of the gripper bar 12 opened. After the front edge of the metal sheet 01 to be transported has struck the two positioning marks 13, the fixing device 14 of the gripper bar 12 acting on the front edge of the metal sheet 01 to be transported is closed, so that the metal sheet 01 to be transported is fixed or is fixed at its front edge.
• the fixing device 14 of the gripper bar 12 is preferably designed as a clamping device that is switched or at least switchable into an open operating position or a closed operating position by a control unit.
• this metal sheet 01 is fed from the conveyor device 11 to the second transport device 06 belonging to the metal sheet printing machine 02, preferably triggered by a request from the metal printing machine 02, and transferred to this second transport device 06.
• the fixing device 14 of the gripper bar 12 After the metal sheet 01 in question has been transferred, its fixation is released by moving the fixing device 14 of the gripper bar 12 into its open operating position.
• the two positioning marks 13 can be designed so that their respective positions, for example, are variably adjustable in the plane of the metal sheet 01 to be conveyed within a particularly structurally defined range.
• the at least one printing unit 07 of the metal printing machine 02 which prints the relevant metal sheet 01 transported by the second transport device 06, is designed, for example, as a digital printing unit, preferably as an inkjet printing unit, in particular as a printing unit printing using an inkjet printing process.
• Fig. 2 shows, in the form of a perspective assembly illustration, the gripper bar 12 of the conveyor device 11 with two spaced-apart positioning marks 13 and the fixing device 14 arranged in particular centrally between these positioning marks 13, wherein this fixing device 14 is designed, for example, as a clamping device.
• the two positioning marks 13 are arranged, for example, on a mounting plate 16, preferably mechanically adjustable in their respective positions.
• the clamping device has, for example, a preferably vertically moved or at least movable by a pneumatic or electric drive 17 and a rigid abutment 09, wherein a metal sheet 01 to be fixed is held or at least can be held in the closed operating position of the clamping device at its front edge between the clamping rail 08 and the abutment 09. In this operating position of the clamping device, ie in the operating state of the fixation, the front edge of the metal sheet 01 in question is in contact with the two positioning marks 13.
• Fig. 3 shows the gripper bar 12 of the Fig. 2 in conjunction with a linear guide 18, wherein this linear guide 18 is driven by an electric motor 19 and moves the gripper bar 12 connected to it bidirectionally along a linear transport path.
• the gripper bar 12 in the closed operating position of its fixing device 14, transports a metal sheet 01 to be printed between the first transport device 04 belonging to the metal sheet feeder 03 and the second transport device 06 belonging to the metal printing press 02.
• this conveyor device 11 which is designed, for example, as a conveyor table, has several, e.g.
• each of these linear guides 18 conveys a metal sheet 01 to be printed synchronously with the other linear guides 18 or independently of the other linear guides 18 to bridge the distance A existing between the transport paths formed by the transport devices 04; 06.
• a single metal sheet 01 to be printed is shown lying on the conveyor table in a minimum format and in a maximum format.

Landscapes

• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
• Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)

Applications Claiming Priority (1)

Publications (1)

Family

ID=93456247

Family Applications (1)

Country Status (2)

Citations (7)

• 2024
  • 2024-02-01 DE DE102024102883.1A patent/DE102024102883B3/de active Active
  • 2024-11-07 EP EP24211402.3A patent/EP4596470A1/fr active Pending

Patent Citations (7)

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