WO2023083504A1 - Chaîne de production pour traiter des feuilles métalliques - Google Patents

Chaîne de production pour traiter des feuilles métalliques Download PDF

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Publication number
WO2023083504A1
WO2023083504A1 PCT/EP2022/066807 EP2022066807W WO2023083504A1 WO 2023083504 A1 WO2023083504 A1 WO 2023083504A1 EP 2022066807 W EP2022066807 W EP 2022066807W WO 2023083504 A1 WO2023083504 A1 WO 2023083504A1
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WO
WIPO (PCT)
Prior art keywords
transport
traction means
production line
wire frame
metal
Prior art date
Application number
PCT/EP2022/066807
Other languages
German (de)
English (en)
Inventor
Klaus Kirsch
Bernhard Mokler
Original Assignee
Koenig & Bauer Ag
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Koenig & Bauer Ag filed Critical Koenig & Bauer Ag
Priority to EP22737431.1A priority Critical patent/EP4313602A1/fr
Publication of WO2023083504A1 publication Critical patent/WO2023083504A1/fr

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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
    • B41F19/00—Apparatus or machines for carrying out printing operations combined with other operations
    • B41F19/001—Apparatus or machines for carrying out printing operations combined with other operations with means for coating or laminating
    • 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
    • B41F23/00—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing
    • B41F23/04—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing by heat drying, by cooling, by applying powders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F23/00—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing
    • B41F23/04—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing by heat drying, by cooling, by applying powders
    • B41F23/044—Drying sheets, e.g. between two printing stations
    • B41F23/0443—Drying sheets, e.g. between two printing stations after printing
    • B41F23/0446—Wicket conveyors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F23/00—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing
    • B41F23/04—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing by heat drying, by cooling, by applying powders
    • B41F23/044—Drying sheets, e.g. between two printing stations
    • B41F23/0463—Drying sheets, e.g. between two printing stations by convection
    • B41F23/0466—Drying sheets, e.g. between two printing stations by convection by using heated air
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F23/00—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing
    • B41F23/08—Print finishing devices, e.g. for glossing prints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H11/00—Feed tables
    • B65H11/002—Feed tables incorporating transport belts
    • B65H11/005—Suction belts
    • 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
    • B65H5/02—Feeding articles separated from piles; Feeding articles to machines by belts or chains, e.g. between belts or chains
    • B65H5/021—Feeding articles separated from piles; Feeding articles to machines by belts or chains, e.g. between belts or chains by belts
    • 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
    • B65H5/22—Feeding articles separated from piles; Feeding articles to machines by air-blast or suction device
    • B65H5/222—Feeding articles separated from piles; Feeding articles to machines by air-blast or suction device by suction devices
    • B65H5/224—Feeding articles separated from piles; Feeding articles to machines by air-blast or suction device by suction devices by suction belts
    • 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
    • B65H2301/50—Auxiliary process performed during handling process
    • B65H2301/51—Modifying a characteristic of handled material
    • B65H2301/517—Drying material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/20—Belts
    • B65H2404/28—Other properties of belts
    • B65H2404/283—Other properties of belts magnetic
    • 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
    • B65H2405/30—Other features of supports for sheets
    • B65H2405/35—Means for moving support
    • B65H2405/352—Means for moving support in closed loop
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2406/00—Means using fluid
    • B65H2406/10—Means using fluid made only for exhausting gaseous medium
    • B65H2406/11—Means using fluid made only for exhausting gaseous medium producing fluidised bed
    • B65H2406/112—Means using fluid made only for exhausting gaseous medium producing fluidised bed for handling material along preferably rectilinear path, e.g. nozzle bed for web
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2406/00—Means using fluid
    • B65H2406/10—Means using fluid made only for exhausting gaseous medium
    • B65H2406/11—Means using fluid made only for exhausting gaseous medium producing fluidised bed
    • B65H2406/113—Details of the part distributing the air cushion
    • B65H2406/1132—Multiple nozzles arrangement
    • 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
    • B65H2801/24—Post -processing devices
    • B65H2801/31—Devices located downstream of industrial printers

Definitions

  • the invention relates to a production line for processing sheet metal according to the preamble of claim 1.
  • DE 102019 118647 B3 discloses a production line for processing metal sheets that has a number of different machine units.
  • B. is linear, with a metal plate printing machine and/or a coating machine and/or a loading station and/or a dryer and/or an unloading station being provided as machine units in the direction of transport of metal sheets to be processed in succession, with at least two machine units each having at least one transport device for transport have at least one sheet metal plate lying individually on a transport plane, wherein the transport device of the loading station has a wire frame that lifts a sheet metal plate, this wire frame being designed in such a way that it surrounds the transport plane of the metal plates in a circular manner about an axis of rotation extending transversely to the transport direction of the metal plates to be transported an area in which a metal sheet is fed to the loading station from bottom to top.
  • a production line with the features of the preamble of claim 1 is known from US Pat. No. 2,593,415 A, US Pat. No. 2,002,720 A and GB 212,808 A.
  • the invention is based on the object of creating a production line for processing metal sheets, wherein in a mass production of metal sheets with a production speed of several thousand metal sheets per hour, their trouble-free individual transport also through a continuous dryer of the production line is ensured throughout.
  • 1 shows a production line for processing metal sheets with a number of machine units
  • FIG. 3 shows a plan view of a transport device
  • Fig. 6 is a perspective view of a loading station with an upstream transport module
  • FIG. 7 shows a plan view of the loading station of FIG. 6
  • FIG. 9 shows a sketch of an arrangement of cyclically operated nozzles formed in a loading station
  • FIG. 10 shows a sketch of a controller for monitoring and/or setting a synchronization point at a loading station
  • FIG. 11 shows a lifting device supporting the lifting of a wire frame by means of compressed air nozzles and/or electromagnets
  • Fig. 12 shows a lifting device assisting lifting of a wire frame by means of a cam
  • 13a, 13b a lifting device supporting the lifting of a wire frame by means of a lever
  • metal sheets 08 (Fig. 2) are usually printed with at least one printed image on a production line 01 by applying at least one printing fluid using a metal sheet printing machine 03 and/or in a sheet metal painting machine 06, e.g. B. to protect their surface or at least the printed image and / or z. B. to produce a gloss effect in each case painted over the entire surface or part of the surface.
  • the metal sheets 08 to be processed in this way have a format z. B. between 500 mm x 650 mm and 950 mm x 1,900 mm and each have a sheet thickness z. B.
  • metal sheets 08 can, depending on their format and their material - whether made of tin-plated steel or tin-free steel or aluminum - thus a mass z. B. from a few hundred grams to a few kilograms, z. B. from at least 300 grams up to five kilograms or more.
  • metal sheets 08 of this type are industrially mass-produced at a production speed of several thousand metal sheets 08 per hour, e.g. B. of at least 6,000 metal panels 08 per hour printed and / or painted.
  • FIG. 1 shows a highly simplified schematic representation of such a production line 01 for processing metal sheets 08, which has a number of machine units, in which these machine units are each arranged one behind the other in a row and work together to carry out production that processes metal sheets 08.
  • a sheet metal printing machine 03 and / or a sheet metal painting machine 06 is provided, followed by a loading station 02, a continuous dryer 17 and an unloading station 07, in particular the loading station 02 and / or the unloading station 07 each z. B. can interact with a transport module 04 designed as an independent machine unit.
  • the tin printing machine 03 and the tin painting machine 06 can also be in a single Be formed machine unit combined. Trained as a continuous dryer 17 machine unit is z. B. designed as a hot air dryer.
  • metal sheets 08 transported at high speed through the production line 01 tend to have problems during transport, specifically due to friction effects in their respective transport plane and/or as a result of contamination on their respective transport path. Disturbing friction effects also occur e.g. B. in the event of excessive wear or aging of a belt transport system used for transporting the metal sheets 08. Each of these undesirable influences can lead to e.g. B. several metal sheets 08 transported one after the other through the production line 01 unintentionally run up against each other and/or tilt or get caught. Metal sheets 08 can also be turned out of their linear transport path in their respective transport plane and thereby z. B. cause a collision with other metal sheets 08 and/or a component of one of the machine units of this production line 01.
  • At least one free distance between successively transported sheet metal plates 08 i.e. the distance between the rear edge of a first metal plate 08 and the front edge of the next following second metal plate 08, can change despite a constant production speed in production line 01, see above that a so-called synchronization point shifts, which means that in particular the leading edge position of a metal sheet 08 shifts relative to devices arranged in different machine units of the production line 01.
  • a so-called synchronization point shifts which means that in particular the leading edge position of a metal sheet 08 shifts relative to devices arranged in different machine units of the production line 01.
  • the metal printing machine 03 or a metal coating machine 06, of the at least one Transport module 04, the loading station 02, the continuous dryer 17 and the unloading station 07 is disturbed.
  • Such events lead to an undesired impairment of production and/or to damage up to a loss of production due to a machine downtime caused by a malfunction.
  • At least the respective transport module 04 and/or the loading station 02 and/or the unloading station 07 each have at least one transport device 09 (Fig. 3) for transporting the metal sheets 08 as one of their structural units.
  • a transport route through this production line 01 is z. B. linear.
  • At least the machine units embodied as a loading station 02 or as a continuous dryer 17 or as an unloading station 07 and arranged one behind the other in the transport direction T of the metal sheets 08 are linked together by at least one common traction mechanism 29 that runs through these machine units and is provided for the transport of the metal sheets 08 (Fig. 1) , e.g. B. by at least one circulating chain.
  • the direction of rotation of the traction means 29 is indicated in FIG. 1 by directional arrows.
  • the traction means 29 is formed by two mirror-image chains running, these chains over several, z. B.
  • two shafts 31 each having gears are driven synchronously by a drive 32 designed in particular as an electric motor.
  • Two of these shafts 31 are arranged at least at the two deflection points of the chains, i. H. at the ends of the transport section spanned by these chains through the production line 01.
  • Rails 33 are preferably arranged in the continuous dryer 17, with each of these chains being supported on one of these rails 33 via rollers 36 attached at the side.
  • each of these metal sheets 08 has a length L in the transport direction T intended for it and transverse to this transport direction T has a width B, with the format of the respective metal sheet 08 being defined by specifying its length L times its width B.
  • FIG. 3 shows a top view of one of the transport devices 09 arranged in at least two different machine units of the production line 01 as an example.
  • FIG. B. is arranged in the transport module 04.
  • Fig. 5 shows the transport device 09 in a plan view in an enlarged representation.
  • the transport device 09 has at least one, preferably two, transport belts 11 only in its central region M, which extends longitudinally to the transport direction T of the metal sheets 08.
  • B. as a flat belt consisting in particular of a flexible material in the form of an endless loop.
  • the z. B. between 1 mm and 5 mm, preferably about 2 mm thick flat belts have a width B11 z. B. between 30 mm and 250 mm, preferably about 40 mm or 80 mm.
  • the z. B. table-shaped transport device 09 preferably has a flat plate 12 (Fig.
  • the plate 12 of this transport device 09 has a length L12, which is preferably at least as long as the length L of the maximum format of the transport device 09 to transporting sheet metal 08.
  • the respective transport belt 11 of the transport device 09 is preferably arranged revolving on deflection rollers with its respective load side along the transport plane in such a way that each load side of the transport belt 11 resting and on the relevant transport belt 11 z. B. also held sheet metal 08 can be transported relative to the stationary plate 12 in question along a linear transport route, with this transport route z. B. at least over the length L12 of the transport device 09.
  • the holding force required to hold a metal sheet 08 resting on the transport belt 11 in question is achieved, e.g. B. by a suction, the required suction z. B. is generated by a suction box arranged below the plate 12 of the transport device 09 in conjunction with a suction pump connected to it.
  • the suction pump is preferably switched on and/or switched off as required, or at least can be switched on and/or switched off.
  • magnetic holding means can also be provided for holding a sheet metal plate 08 resting on the transport belt 11 in question, which are preferably also switchable.
  • the relevant transport device 09 can also have several, e.g. B. two mutually parallel transport belts 11 have.
  • At least two of these transport devices 09 are preferably arranged separately from one another, ie as independent structural units in different machine units, with one of these transport devices 09 being arranged in particular in the loading station 02 or in the unloading station 07.
  • the transport belts 11 of the relevant transport devices 09 are each driven by an electric drive 16 in such a way that transport belts 11 arranged in different transport devices 09 are preferably synchronized with one another in terms of their respective rotational speeds, so that transport belts 11 are transported by them
  • Metal sheets 08 are each transported with the same amount of linear speed, apart from permissible minor tolerances, with these metal sheets 08 being transported on these transport belts 11, e.g. B. are held by suction and / or magnetically.
  • the metal sheets 08 resting on the transport belts 11 are transported in their transport plane, i.e. in particular with respect to the plate 12 of the transport device 09, each largely floating on an air cushion and is therefore almost friction-free, but at least extremely low-friction and practically slip-free, because the respective Metal sheets 08 are only in physical contact with the comparatively narrow transport belts 11 .
  • the respective electric drive 16 of the relevant transport devices 09 is z. B. in each case designed as an electric motor and preferably in each case connected at least in terms of data technology to a machine controller 34 of the production line 01 that is superordinate to the individual machine units, e.g. B. with a control station of this production line 01.
  • Transport belts 11 arranged in different transport devices 09 are preferably driven by their respective electric drive 16 in such a way that they B. rotate continuously, in particular in a synchronism. Alternatively, these transport belts 11 can also be driven in clocked fashion. It can also be provided that the transport belt 11 of a z. B. in the loading station 02 arranged transport device 09 preferably clocked by the machine controller 34 and / or resting on their transport belts 11 metal plate 08 are driven temporarily braking in their linear speed, whereas the transport belts 11 of a z. e.g.
  • the transport device 09 is preferably clocked by the machine controller 34 and/or a sheet metal plate 08 resting on its transport belt 11 is driven at times in an accelerating manner in terms of its linear speed.
  • the synchronous running of the transport belts 11 arranged in different transport devices 09 and thus above all the synchronous running of the sheet metal panels 08 held by these transport belts 11 is particularly important when the conveyor belt is started up or shut down Machine units of this production line 01 advantageous.
  • the synchronous operation of the transport belts 11 arranged in different transport devices 09 and thus also of the metal sheets 08 must be ensured, but in particular also at the transitions between the machine units involved in the production process of this production line 01.
  • the plate 12 of the transport device 09 in question has a belt-free edge region R1 on both sides of its respective central region M; R2, these edge areas R1; R2 preferably have the same width extending transversely to the transport direction T of the metal sheets 08 and are preferably arranged symmetrically with respect to a longitudinal extension of the relevant transport device 09.
  • the nozzles 14 arranged there are operated in such a way that, to form the air cushion, blown air is blown out of them against the underside of a sheet metal panel 08 resting on the at least one transport belt 11 of the transport device 09 in question and held on the transport belt(s) 11 in question.
  • at least some of the nozzles 14 of the nozzle arrays 13 z. B. are each designed as venturi nozzles. In the respective nozzle fields 13 z. B.
  • a first subset of individual nozzles 14 and/or a second subset of individual nozzles 14 are each arranged in such a way that the first subset of nozzles 14 directs the blown air outwards at an acute angle in the transport direction T of the metal sheets 08, i.e. in the direction of the transport device 09 in question and/or the second subset of nozzles 14 blow out the blast air vertically upwards.
  • Fig. 6 shows an example of a perspective representation of the loading station 02 arranged in the production line 01 together with a transport module 04 arranged immediately upstream in the transport direction T of the metal sheets 08.
  • both the loading station 02 and the transport module 04 each have their own frame 19; 21, these two machine units being joined together seamlessly, so that the frame 21 of the loading station 02 and the frame 19 of the transport module 04 form a joint joint.
  • the transport module 04 has a transport device 09 z. B. with a plate 12, wherein a metal plate 08 to be transported in the transport direction T indicated by a directional arrow is shown both in its largest format and in its smallest format on the plate 12.
  • the sheet metal plate 08 only rests on the transport belt 11 that runs longitudinally in the transport direction T and circulates on deflection rollers and is otherwise held floating above the plate 12 by an air cushion generated by the nozzles 14 .
  • Fig. 7 shows a plan view of the loading station 02 shown in Fig. 6.
  • the loading station 02 has a transport device 09 for feeding sheet metal panels 08 lying flat one by one in a transport plane of this transport device 09 to the continuous-flow dryer 17, with the loading station 02 having at least one wire frame 22, the respective wire frame 22 generally being pivotable in a circular manner about an axis of rotation 23 extending transversely to the transport direction T of the metal sheets 08 to be transported.
  • Each of the wire frames 22 is designed in such a way that it travels through the transport plane of the sheet metal panels 08 lying flat therein in a pivoting movement from bottom to top and uses this pivoting movement to erect a flat sheet metal panel 08 to be transported through the continuous dryer 17 vertically from its previous transport plane.
  • the Loading station 02 are parallel to each other in the central area M of their transport device 09 two z. B. clocked and decelerating driven conveyor belt 11 arranged z. B. by a suction and / or a magnetic holding force on this transport belt 11 flat metal plate 08 and flat metal plate 08 z. B. up to a transverse to the direction of transport T of the metal sheets 08 to be transported extending stop 24, wherein this stop 24 z. B. is formed by arranged on the axis of rotation 23 rubber buffer.
  • the transport device 09 of the loading station 02 preferably also has—as previously described in connection with FIG. 5—two belt-free edge regions R1; R2, in each of which a nozzle array 13 is formed.
  • a plurality of nozzles 14 are arranged in the respective nozzle arrays 13 to form an air cushion that supports a metal sheet 08 lying flat on the transport belt 11.
  • B. ejects a first subset of blown air in the transport direction T of the metal sheets 08 at an acute angle obliquely outwards and/or z.
  • B. blows out a second subset of blown air vertically upwards in the direction of the underside of a sheet metal plate 08 resting on the transport belt 11 .
  • these recesses 27 preferably have a bevel 28 running at an acute angle counter to the transport direction T of the metal panels 08 in the direction of the nearest edge of the transport device 09 in question that extends longitudinally to the transport direction T of the metal panels 08 e.g. B. in the form of at least one corresponding edge.
  • FIG 8 shows an example of a plan view of an unloading station 07 arranged in the production line 01.
  • the transport device 09 of the unloading station 07 is similar to that Transport device 09 of the loading station 02 constructed, so that the same reference numerals are used below for the same components.
  • the unloading station 07 also has at least one wire frame 22, with the respective wire frame 22 generally being pivotable in a circular manner about an axis of rotation 23 extending transversely to the transport direction T of the metal sheets 08 to be transported, with each of the wire frames 22 being designed in such a way that it travels through the transport plane of the sheet metal panels 08 to be transported with the transport device 09 in a pivoting movement from top to bottom and with this pivoting movement one of the vertically erected metal panels 08 transported through the continuous dryer 17 is deposited flat in the transport plane of the transport device 09 of the unloading station 07.
  • two z. B. synchronously or clocked and accelerated driven conveyor belt 11 arranged z. B.
  • the transport device 09 of the unloading station 07 preferably also has—as previously described in connection with FIG. 5—two belt-free edge regions R1; R2, in each of which a nozzle array 13 is formed.
  • a plurality of nozzles 14 are arranged in the respective nozzle arrays 13 to form an air cushion that supports a metal sheet 08 lying flat on the transport belt 11.
  • B. ejects a first subset of blown air in the transport direction T of the metal sheets 08 at an acute angle obliquely outwards and/or z.
  • the result is a production line 01 for processing metal sheets 08, with this production line 01 having a number of different machine units, with at least one of these machine units being designed as a continuous dryer 17.
  • the continuous-flow dryer 17 is designed in such a way that metal panels 08 to be dried pass through this continuous-flow dryer 17 in a vertical position and generally at a distance from one another, with a loading station 02 for vertically erecting metal panels 08 lying flat in a transport plane of a transport device 09 arranged upstream of the continuous-flow dryer 17 and one through the continuous-flow dryer 17 vertically erected transported metal sheets 08 is arranged in a transport plane of a transport device 09 flat laying unloading station 07.
  • the distance between adjacent metal sheets 08 transported in a vertically upright position by the continuous dryer 17 is only a few centimeters, e.g. B. between 1 cm and 5 cm, in particular less than 3 cm.
  • At least one pressurized fluid has been applied to at least one surface of the sheet metal panels 08 to be dried in continuous-flow dryer 17, i.e. on one side or both sides, in at least one machine unit designed as a sheet metal printing machine 03 and/or in at least one machine unit designed as a sheet metal painting machine 06.
  • the printed and/or coated sheet metal panels 08 are fed individually one after the other to the continuous-flow dryer 17, with these metal sheets 08 being erected vertically from their position in the loading station 02, which would otherwise lie flat in their transport plane in this production line 01, before they are fed to the continuous-flow dryer 17.
  • a vertical erection is here z.
  • the metal sheets 08 in the unloading station 07 are laid down flat one after the other in the transport plane of a transport device 09.
  • a cooling zone 18 e.g. B. in the form of a cooling device, in order to cool down the sheet metal panels 08, which are strongly heated during their passage through the continuous dryer 17, to a significantly lower temperature.
  • At least two machine units of this production line 01 are each in their own frame 19; 21 trained. At least two of these machine units each have at least one transport device 09 for transporting at least one metal plate 08 lying flat in the respective transport plane, each of these separately arranged transport devices 09 having at least one transport belt 11 for transporting the metal plate 08 in question.
  • the transport belts 11 of the relevant transport devices 09 are each preferably driven by an electric drive 16, in particular in such a way that transport belts 11 arranged in different transport devices 09 are synchronized with one another in terms of their respective rotational speed, so that metal sheets 08 transported by these transport belts 11 are each at least almost equal amount, d. H. apart from minor permissible tolerances, be transported at the same linear speed.
  • an air cushion is preferably formed below these metal plates 08 and these metal plates 08 are arranged in a floating manner by the air cushion in their transport plane.
  • the machine units of the The loading station 02, the continuous dryer 17, the cooling zone 18 and the unloading station 07 are always linked to one another, and not only by a functional, i.e. control-related, linking of the relevant transport devices 09, but also physically, i.e. mechanically by at least one provided for the transport of the metal sheets 08 traction means 29 z. B. in the form of at least one chain running through preferably all of these machine units.
  • the at least one traction means 29 running through the relevant machine units engages both the pivoting wire frame 22 of the loading station 02 and the pivoting wire frame 22 of the unloading station 07, so that the wire frame 22 in question is coupled to the traction means 29, with the traction means 29 e.g. B.
  • the at least one traction means 29 running through the relevant machine units is therefore designed to act both on the relevant pivotable wire frame 22 of the loading station 02 and on the relevant pivotable wire frame 22 of the unloading station 07 and to couple the relevant wire frame 22 to the relevant traction means 29.
  • a rotational speed of the traction means 29 running through the relevant machine units and the respective linear speed of the transport belts 11 transporting the metal sheets 08 in the respective transport devices 09 of the production line 01 are coordinated with one another, in particular synchronized with one another, by the machine controller 34.
  • z. B. of at least 6,000 metal sheets 08 per hour, and / or in the case of a large format of the metal sheets 08 to be processed in the production line 01 of z. B. more than 700 mm x 1,000 mm and / or with a small sheet metal thickness of the metal panels 08 of z. B. less than 0.3 mm act on the metal sheets 08 in question at the moment when they are lifted by the respective wire frame 22 of the transport device of the loading station 02, increased acceleration forces.
  • a production line 01 for processing sheet metal plates 08 which has a metal plate printing machine 03 and/or a painting machine 06, with a loading station 02 and immediately after the metal plate printing machine 03 and/or the painting machine 06 in the transport direction T of the metal plates 08
  • a continuous dryer 17 for drying the printed and/or painted metal panels 08 is arranged downstream of the loading station 02.
  • the loading station 02 has a plurality of wire frames 22, each rotating about an axis of rotation 23 extending transversely to the direction of transport T of the metal sheets 08 being transported, these wire frames 22 being arranged one after the other to lift the metal sheets 08 that are fed horizontally to the loading station 02, each individually out of their transport plane, with each of these wire frames 22 is designed in such a way that it travels through the transport plane of the metal sheets 08 in a circular manner from bottom to top in an area in which these metal sheets 08 are each fed individually to the loading station 02, and with this pivoting movement one of the flat ones passes through the continuous dryer 17 to be transported sheet metal 08 erects.
  • the loading station 02 also has z. B.
  • R2 each has at least one nozzle field 13, each with a plurality of nozzles 14, with nozzles 14 arranged there being operated in such a way that blown air is blown out of them, preferably vertically upwards against the underside of a sheet metal panel 08.
  • At least a subset of the nozzles 14 that blow the blown air preferably vertically upwards are operated in a clocked manner, with these clocked nozzles 14 being switched on to eject blowing air, while the sheet metal panel 08 in question is taken over and lifted by the wire frame 22, and these nozzles 14 are switched off , before the blown air catches the front edge 46 of that sheet metal panel 08 that immediately follows the sheet metal panel 08 that has just been taken over and raised by the wire frame 22.
  • 9 shows, in a simplified sectional view, an arrangement of at least one cyclically operated nozzle 14 that blows blown air preferably vertically upwards in a loading station 02.
  • a plurality of such nozzles 14 are preferably provided.
  • 9 shows a wire frame 22 of the transport device of the loading station 02 in three different positions, which this wire frame 22 assumes during its pivoting movement about the axis of rotation 23.
  • a sheet metal panel 08 fed to the loading station 02 is preferably transported in its transport direction T by at least one transport belt 11, on which the sheet metal panel 08 in question lies flat, until its front edge 46 reaches the stop 24.
  • the sheet metal panel 08 in question is picked up by the wire frame 22 and pivoted upwards out of the transport plane in which the at least one transport belt 11 is located.
  • the metal sheet 08 in question is preferably erected at least almost vertically from its previous transport level before it is fed to the continuous dryer 17.
  • the blown air are each preferably perpendicular blowing nozzles 14 operated at the top with a blowing pressure adjustable in its strength.
  • the strength of the blowing pressure of the blowing air in each case preferably vertically blowing out nozzles 14 z. B. depending on a production speed of the metal sheets 08 to be processed in this production line 01 and/or depending on a format of the metal sheets 08 to be processed in the production line 01 and/or depending on a sheet thickness of the metal sheets 08 to be processed in the production line 01 adjusted or at least adjustable.
  • a throttle valve 38 is preferably connected to these nozzles 14 on the output side and to a compressed air source 41 on the input side.
  • the nozzles 14, which preferably emit blown air vertically upwards, are only switched on to emit blown air when sheet metal panels 08 are being transported through the production line 01 at a production speed greater than a preset minimum speed.
  • the blown air in each case preferably blowing vertically upwards nozzles 14 are z. B. until a preset minimum value is reached for the production speed of the metal sheets 08 to be processed in this production line 01 and/or for metal sheets 08 with a smaller format than a preset minimum format for the metal sheets 08 to be processed in the production line 01 and/or for metal sheets 08 switched off with a greater sheet thickness than a preset minimum sheet thickness for the sheet metal panels 08 to be processed in the production line 01.
  • the above-described mode of operation of the production line 01 is only active when unstable corners of the metal sheets 08 actually bend. In this way, a breakdown in the production line 01 and/or an interruption in operation and/or the production of scrap metal sheets 08 can be avoided.
  • the The solution described can be used both on a new production line 01 and for retrofitting in a production line 01 already in use by a customer.
  • the distance between the rear edge of a first metal plate 08 and the front edge 46 of a second metal plate 08 immediately following the first metal plate 08 can change, so that the synchronization point shifts, which means that in particular the front edge position of a metal plate 08 currently fed to the loading station 02 also changes relatively to an end of that wire frame 22 of the transport device of this loading station 02 that faces this metal sheet 08, which wire frame 22 is provided for taking over the metal plate 08 currently being fed and which, precisely because of its pivoting movement, moves into the area in which it takes over the metal plate 08 currently being fed to the loading station 02 should.
  • a first detection device 42 and a second detection device 43 be provided in or on the loading station 02, the first Detection device 42 and the second detection device 43 are each signal-connected to a preferably digital control unit 44 .
  • the first detection device 42 detects a first point in time at which one of the wire frames 22 of the transport device of the loading station 02 assumes a specific rotational angle position in relation to the transport plane of the metal sheets 08, with the first detection device 42 sending a first signal representing the detected first point in time to the control unit 44 .
  • the first detection device 42 can be arranged at different positions in the loading station 02, which is indicated in FIG. 10 by a second alternative installation position.
  • the second detection device 43 detects a second point in time at which the front edge 46 of the metal plate 08 currently fed to the loading station 02 reaches a specific position, this position in the transport plane of this metal plate 08 in the transport direction T of this metal plate 08 in front of an end of the metal plate 08 facing this metal plate the wire frame 22 provided for taking over this sheet metal panel 08, the second detection device 43 sending a second signal representing the detected second point in time to the control unit 44.
  • Control unit 44 is designed in such a way that it determines an actual value for a time difference AT between the first point in time and the second point in time and compares this actual value with a target value specified for the time difference AT, preferably stored in control unit 44, and determines a deviation of the actual value from the target value , wherein the control unit 44 reports a deviation of the actual value from the target value that is outside permissible tolerance limits and/or a display device 48 z.
  • This control unit 44 can, for. B. also integrated into the machine control 34 of the production line 01.
  • the first detection device 42 and the second detection device 43 are preferably each designed as a non-contact sensor.
  • a signal connected to the control unit 44 controls the pivoting movement of the wire frame 22 about the axis of rotation 23 driving z. g. as an electric motor, control unit 44 is designed to control at least this drive 47 in the event that the actual value deviates from the setpoint value outside of permissible tolerance limits in such a way that the wire frame 22 that is required to take over the next loading station 02 supplied metal sheet 08 is provided, pivots at such a point in time into the transport plane of this next metal sheet 08, so that for this next metal sheet 08 the actual value of the time difference AT is again within the permissible tolerance limits.
  • the permissible tolerance limits are e.g. B. in the single-digit percentage range of the target value or even below.
  • the drive 47 that pivots the wire frame 22 about the axis of rotation 23 is identical to the drive 32 that drives the traction mechanism 29, with the traction mechanism 29 being arranged to run through at least the loading station 02 and the continuous-flow dryer 17 downstream of it.
  • This latter embodiment is very advantageous if the traction means 29 acts on the swiveling wire frame 22 in question of the loading station 02 and is designed to produce a preferably mechanical coupling of the wire frame 22 in question with the traction means 29 in question.
  • the control unit 44 can be designed in such a way that it determines several actual values for a time difference AT between the first point in time and the second point in time and sorts out an implausible actual value before it compares the actual values with the setpoint value specified for the time difference AT.
  • the control unit 44 can also preferably be designed in such a way that it can also control upstream components of the production line on the drive 47, e.g. B. the loading station 02 or the painting machine 06 or acts on a virtual drive axis acting on several machine units of the production line.
  • the solution described makes it easier to set the optimum synchronization point for the feed of metal sheets 08 to the loading machine 02 when the production conditions. It also helps to avoid metal panels 08 colliding with the wire frames 22, which in turn avoids production stoppages and metal panels 08 rejects. This solution can also be retrofitted to old systems.
  • one point in the production line 01 that is unfortunately very prone to failure with regard to the production process is the loading machine 02 upstream of the continuous-flow dryer 17. Because each of the sheet metal plates 08 transported through the production line 01 must be taken over in good time by one of the wire frames 22 at the loading machine 02 and be raised before a next sheet metal 08 enters the pivoting range of the wire frame 22. If this is unsuccessful, at least one of the metal panels 08 following a metal panel 08 that has just been picked up will abut against the end of the wire frame 22 facing the front edge of this metal panel 08, which has received the immediately preceding metal panel 08. Unfortunately, such a collision and thus a disruption in the production process of this production line 01 can even occur when the synchronization point for the upstream metal printing machine 03 or metal painting machine 06 is optimally set.
  • This lifting device has the advantage that it supports the flexible wire frame 22 when a sheet metal panel 08 that has been taken over is lifted and absorbs part of the acceleration forces acting on the wire frame 22 in question, thus at least largely preventing elastic deformation of the wire frame 22 and its mechanical oscillation.
  • Such a lifting device contributes to the fact that the weight of the wire frame 22 can be further reduced, as a result of which energy can ultimately be saved in the continuous dryer 17 .
  • these compressed air nozzles 49 in the loading machine 02 below the transport level of an accrued, i. H. the metal sheet 08 fed to the loading machine 02 and are operated in such a way that they blow the underside of the metal sheet 08 to be lifted, preferably vertically upwards, with a brief blast of pressure at the moment when the metal sheet 08 in question is taken over by the wire frame 22 in question.
  • this design of the lifting device does not act directly on the wire frame 22, but only indirectly, it does support the lifting of the relevant sheet metal panel 08.
  • a second embodiment of the lifting device is also shown by way of example in FIG. B.
  • clocked electromagnets 51 arranged just above the transport plane of an approaching sheet metal panel 08, in particular in the area of at least one spacer 52, the spacer 52 in question being arranged on the end of each wire frame 22 facing away from the axis of rotation 23.
  • These electromagnets 51 are switched clocked by a control unit 53 and support the wire frames 22 by means of a magnetic force that attracts the wire frames 22 .
  • these clocked electromagnets 51 could also be arranged below the transport plane of an incoming sheet metal panel 08 and have a supporting effect by means of a magnetic force repelling the wire frame 22 .
  • the electromagnets 51 switching control unit 53 is z. B. integrated in the machine control 34 of the production line 01.
  • At least one z. B. rotating cam 54 is provided, wherein the relevant cam 54 mechanically lifts the relevant wire frame 22 and the relevant cam 54 is cyclically pivoted away, while a metal plate 08 enters the loading machine 02.
  • the lifting device is designed as a lifting device, which is below the transport level of an approaching metal sheet 08 is arranged on the loading machine 02 and which lifts at least one of the longitudinal rods 59 or longitudinal bars 59 of the wire frame 22, preferably in the middle region, in a form-fitting manner.
  • This lifting device can, for example, take the form of a cyclically moved lever 57, in particular one equipped with a roller 56 at its free end, which rotates about an axis of rotation 61 preferably in the transport direction T of the metal sheets 08, or a lever 57 that moves at an angle to the underside of the metal sheets 08 to be lifted by the relevant wire frame 22 on its free end end also z.
  • the cyclic axial traversal of the lever 57 is indicated by a double arrow in FIG. 13b implied. In FIGS. 14a and 14b, the lifting movement of the plunger 58 is indicated in each case by a double arrow.
  • the loading station 02 in the described production line 01 for processing metal sheets 08 be designed in such a way that metal sheets 08 that are fed to it one after the other are each individually in one of several in the loading station 02 loosely provided wire frame 22 are arranged, and to provide an endlessly revolving at least the continuous dryer 17 continuous traction means 29 with at least one coupling element 37, wherein the z. g. as a coupling element 37 designed as a suspension bracket, acting on the wire frame 22 in question received on one of the sheet metal panels 08 and producing a coupling of the wire frame 22 in question with the traction mechanism 29 .
  • the wire frame 22 in question that is holding the sheet metal panel 08 is preferably coupled in a hanging manner on the lower strand of the traction means 29 and/or at its lower end, e.g. B. arranged supporting on a support 62, wherein the hanging and / or supporting arranged wire frame 22 is arranged in an inclined position with an angle W in the range between 10 ° and 45 ° to the vertical.
  • the inclined position of the hanging and/or supported wire frame 22 in its operating state of passage through the continuous dryer 17 can also vary along the transport path through this continuous dryer 17 and assume different angles W at different positions on this transport path.
  • the preferably on the lower strand of the traction means 29 z. B. hanging to be coupled wire frame 22 has z. B. a locating bolt for latching into the suspension brackets of the traction mechanism 29.
  • the respective lower end of a metal sheet 08 recorded wire frame 22 supporting support 62 is z. B. as a permanently installed rail or as a with the traction means 29 preferably synchronously revolving support system z. B. in the form of a belt.
  • the inclined position of the hanging and/or supported wire frame 22 ensures the stability of the metal sheets 08 transported in this way, to the extent that these metal sheets 08 neither sink nor bulge in the respective inclined position.
  • the particularly efficient design of the production line 01 proposed here is illustrated in FIG. 15 by way of example.
  • This configuration of the production line 01 has the advantage that, in contrast to the wire frame 22 designed to rotate about an axis of rotation 23, the preferably on the lower run of the traction means 29 z.
  • B. hanging coupled wire frame 22 can be very filigree, so that only a very small mass has to be moved, which leads to energy savings during operation of the production line 01.
  • wire frames 22 suspended from the lower run of the traction means 29 reduce the risk of a sheet metal panel 08 being transported being damaged on the printed and/or painted surface, e.g. B. by vibrations in a contact zone between the relevant sheet metal 08 and wire frame 22 damage.
  • the loading station 02 for loading the continuous dryer 17 with the printed and/or painted metal panels 08 is in the transport direction T of the Metal panels 08 arranged immediately in front of the continuous dryer 17.
  • an unloading station 07 for unloading the metal sheets 08 transported through the continuous dryer 17 is preferably arranged immediately downstream of the continuous-flow dryer 17, the unloading station 07 being designed in such a way that it decouples the relevant wire frame 22 transporting the metal sheet 08, in particular from the lower run of the traction means 29, in particular hangs out.
  • a transport device 63 that is independent of the traction mechanism 29 is provided, with this transport device 63 being connected to the unloading station 07, e.g. B.
  • the return transport of the wire frames 22 which have been decoupled in the unloading station 07, ie in particular unhooked and unloaded, is indicated by directional arrows.
  • the wire frames 22 transported through the continuous dryer 17 are z.
  • B. automatically detaches from the lower run of the traction means 29 and is returned to the loading station 02 by means of the transport device 63.
  • the metal sheets 08 can be placed in the unloading station 07 either with their printed and/or painted surface facing up or down and from there they can be transported on to the production line 01.
  • the wire frame 22, in particular hanging transporting traction means 29 is z. B. formed by two mirror-image chains running, these chains being driven synchronously via a plurality of shafts 31 each having gears.
  • two of these shafts 31 are preferably each arranged at the ends of the transport section spanned by these chains through the production line 01.
  • a particularly efficient configuration of the production line 01 - as shown by way of example in Fig. 16 - at least two traction means 29 are provided, which are arranged vertically one above the other and each run through at least the continuous dryer 17, with these traction means 29 being different through the relevant Continuous dryer 17 are preferably arranged horizontally extending planes.
  • at least one of these traction means 29 z.
  • the loading station 02 preferably has a diverter 64, this diverter 64 being designed to selectively feed metal sheets 08 fed to the loading station 02 to one of the traction means 29 arranged vertically one above the other.
  • the switch 64 is z. B.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Delivering By Means Of Belts And Rollers (AREA)

Abstract

L'invention se rapporte à une chaîne de production (01) pour traiter des feuilles métalliques (08), ayant une machine d'impression de feuille métallique (03) et/ou une machine de revêtement (06), et ayant un séchoir continu (17) pour sécher les feuilles métalliques (08) imprimées par la machine d'impression de feuille métallique (03) et/ou revêtues par la machine de revêtement (06) directement en amont du séchoir continu (17). Directement en aval du séchoir continu (17) dans la direction de transport (T) des feuilles métalliques (08), se trouve un poste de chargement (02) pour charger le séchoir continu (17) avec les feuilles métalliques imprimées et/ou revêtues (08), le poste de chargement (02) étant conçu pour agencer des feuilles métalliques (08), qui sont amenées successivement à celui-ci, individuellement dans un cadre de fil d'une pluralité de cadres de fil (22) disposés dans le poste de chargement (02), un moyen de traction rotatif (29) étant prévu, ledit moyen de traction (29) passant au moins à travers le séchoir continu (17), le moyen de traction (29) présentant au moins un élément de couplage (37), chaque élément de couplage (37) étant conçu pour venir en prise avec le cadre de fil associé (22), qui a reçu l'une des feuilles métalliques (08), et pour coupler le cadre de fil (22) au moyen de traction (29). Directement en aval du séchoir continu (17), se trouve un poste de déchargement (07) pour décharger les feuilles métalliques (08) transportées à travers le séchoir continu (17), le poste de déchargement (07) étant conçu pour désolidariser le cadre de fil (22) transportant la feuille métallique (08) du moyen de traction (29), un dispositif de transport (63) qui est indépendant du moyen de traction (29) étant prévu, ledit dispositif de transport (63) étant conçu pour transporter des cadres de fil (22) qui ont été désolidarisés du moyen de traction (29) au niveau du poste de déchargement (07) en retour au poste de chargement (02) individuellement ou sous une forme empilée ou imbriquée.
PCT/EP2022/066807 2021-11-11 2022-06-21 Chaîne de production pour traiter des feuilles métalliques WO2023083504A1 (fr)

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DE102021129341.3 2021-11-11
DE102021129341.3A DE102021129341B3 (de) 2021-11-11 2021-11-11 Produktionslinie zur Bearbeitung von Blechtafeln

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DE102023110016B3 (de) 2023-04-20 2024-02-15 Koenig & Bauer Ag Förderanlage für einen liegenden Transport von Blechtafeln

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GB212808A (en) 1923-07-02 1924-03-20 August Hormel Improvements in drying apparatus for plates of metal and other material
US1887904A (en) * 1929-05-22 1932-11-15 Carborundum Co Continuous conveyer furnace
US2002720A (en) 1933-04-13 1935-05-28 Russell M Smith Apparatus for drying sheet material
US2593415A (en) 1946-11-07 1952-04-22 American Can Co Sheet extractor device
DE1026244B (de) * 1953-08-31 1958-03-13 Karl Gustav Andersson Vorrichtung zum Abnehmen bedruckter Platten oder aehnlicher zu trocknender Gegenstaende von einer Transporteinrichtung
US3235058A (en) * 1964-01-23 1966-02-15 Black James Coated sheet stock drying apparatus
EP0980642A1 (fr) * 1997-04-24 2000-02-23 Ciba SC Holding AG Procede et dispositif servant a traiter un materiau de forme plate, particulierement, des cartes de circuits imprimes
US9321259B2 (en) * 2013-11-11 2016-04-26 Lee Milazzo Anti-friction roller
WO2018172867A1 (fr) * 2017-03-23 2018-09-27 Ms Printing Solutions S.R.L. Dispositif de transport, installation de traitement de matériau en feuille, procédé de transport et procédé de traitement de matériau en feuille
DE102019118647B3 (de) 2019-07-10 2020-06-10 Koenig & Bauer Ag Produktionslinie zur Bearbeitung von Blechtafeln
DE102019215304B3 (de) * 2019-10-04 2020-08-13 Dürkopp Fördertechnik GmbH Vorrichtung und Verfahren zum Aufgeben von Hängefördergut in eine Hängeförderanlage sowie Hängeförderanlage mit einer derartigen Vorrichtung

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB212808A (en) 1923-07-02 1924-03-20 August Hormel Improvements in drying apparatus for plates of metal and other material
US1887904A (en) * 1929-05-22 1932-11-15 Carborundum Co Continuous conveyer furnace
US2002720A (en) 1933-04-13 1935-05-28 Russell M Smith Apparatus for drying sheet material
US2593415A (en) 1946-11-07 1952-04-22 American Can Co Sheet extractor device
DE1026244B (de) * 1953-08-31 1958-03-13 Karl Gustav Andersson Vorrichtung zum Abnehmen bedruckter Platten oder aehnlicher zu trocknender Gegenstaende von einer Transporteinrichtung
US3235058A (en) * 1964-01-23 1966-02-15 Black James Coated sheet stock drying apparatus
EP0980642A1 (fr) * 1997-04-24 2000-02-23 Ciba SC Holding AG Procede et dispositif servant a traiter un materiau de forme plate, particulierement, des cartes de circuits imprimes
US9321259B2 (en) * 2013-11-11 2016-04-26 Lee Milazzo Anti-friction roller
WO2018172867A1 (fr) * 2017-03-23 2018-09-27 Ms Printing Solutions S.R.L. Dispositif de transport, installation de traitement de matériau en feuille, procédé de transport et procédé de traitement de matériau en feuille
DE102019118647B3 (de) 2019-07-10 2020-06-10 Koenig & Bauer Ag Produktionslinie zur Bearbeitung von Blechtafeln
DE102019215304B3 (de) * 2019-10-04 2020-08-13 Dürkopp Fördertechnik GmbH Vorrichtung und Verfahren zum Aufgeben von Hängefördergut in eine Hängeförderanlage sowie Hängeförderanlage mit einer derartigen Vorrichtung

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