EP3851281B1 - Vorrichtung zum handhaben von druckplatten an einer druckmaschine - Google Patents

Vorrichtung zum handhaben von druckplatten an einer druckmaschine Download PDF

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Publication number
EP3851281B1
EP3851281B1 EP20180242.8A EP20180242A EP3851281B1 EP 3851281 B1 EP3851281 B1 EP 3851281B1 EP 20180242 A EP20180242 A EP 20180242A EP 3851281 B1 EP3851281 B1 EP 3851281B1
Authority
EP
European Patent Office
Prior art keywords
pallet
carrier
printing
pallet carrier
printing plate
Prior art date
Legal status (The legal status 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 status listed.)
Active
Application number
EP20180242.8A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3851281A1 (de
Inventor
Suat Demir
Robert Hupe
Markus Möhringer
Felix Ronellenfitsch
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Heidelberger Druckmaschinen AG
Original Assignee
Heidelberger Druckmaschinen 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 Heidelberger Druckmaschinen AG filed Critical Heidelberger Druckmaschinen AG
Priority to CN202110011254.3A priority Critical patent/CN113147174A/zh
Publication of EP3851281A1 publication Critical patent/EP3851281A1/de
Application granted granted Critical
Publication of EP3851281B1 publication Critical patent/EP3851281B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F27/00—Devices for attaching printing elements or formes to supports
    • B41F27/12—Devices for attaching printing elements or formes to supports for attaching flexible printing formes
    • B41F27/1206—Feeding to or removing from the forme cylinder
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F27/00—Devices for attaching printing elements or formes to supports
    • B41F27/12—Devices for attaching printing elements or formes to supports for attaching flexible printing formes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
    • B41P2227/00—Mounting or handling printing plates; Forming printing surfaces in situ
    • B41P2227/50—Devices for storing printing plates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
    • B41P2227/00—Mounting or handling printing plates; Forming printing surfaces in situ
    • B41P2227/60—Devices for transferring printing plates
    • B41P2227/62—Devices for introducing printing plates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
    • B41P2227/00—Mounting or handling printing plates; Forming printing surfaces in situ
    • B41P2227/60—Devices for transferring printing plates
    • B41P2227/63—Devices for removing printing plates

Definitions

  • the present invention relates to a device for handling printing plates on a printing machine, comprising a first pallet and a second pallet in which the printing plates are accommodated, a first pallet support for supporting the first pallet and a second pallet support for supporting the second pallet.
  • the web-fed rotary printing press has four printing towers, each with two satellite printing units placed one above the other, with each of the printing units comprising four printing units.
  • Such printing presses are known to be used for newspaper printing. Accordingly, the web press has operating levels arranged vertically one above the other. With the help of a lift, a transport trolley with printing plate containers is moved vertically between the operating levels.
  • This device is not suitable for a sheet-fed printing press with the architecture corresponding to the in-line design.
  • the device according to the invention is particularly well suited for sheet-fed printing presses and is primarily intended for this purpose.
  • Web-fed rotary printing presses is suitable, namely for the in-line construction similar trained web-fed rotary printing presses, z. B. those for commercial printing.
  • the printing machine can be a sheet-fed printing machine in in-line design, e.g. B. a Perfect for perfecting.
  • the printing press can have a sheet feeder and a sheet delivery.
  • the printing units mentioned can be offset printing units, the printing plates being offset printing plates.
  • the printing machine can have one or more additional printing units, e.g. B. Flexographic printing units for varnishing.
  • the third pallet carrier can carry a pallet when removing fresh printing plates (new printing plates) from this pallet and the other pallet when storing used printing plates (old printing plates) in the latter pallet.
  • the carriage When sliding the carriage along the rail, the carriage may slide or roll on the rail. It can be provided that the first pallet support faces the third pallet support when the carriage is in its first position and the second pallet support faces the third pallet support when the carriage is in its second position located. It can be provided that in the first position of the carriage, the first pallet carrier is located opposite a printing plate carrier and in the second position of the carriage the second pallet support is in face-to-face relationship with the printing plate support.
  • the printing plate carrier can be used to successively remove the new printing plates from one pallet and to deposit the old printing plates one after the other on the other pallet. For example, one pallet carrier can be opposite to the printing plate carrier when new printing plates are being removed and the other pallet carrier can be opposite to the printing plate carrier when the old printing plates are being deposited.
  • the printing plate support and the third pallet support may be permanently opposed to each other.
  • the printing plate support can be a swivel arm.
  • the swivel arm can be swiveled back and forth periodically in the conveying cycle of the printing plates. For example, whenever a printing plate is removed, the printing plate support can be pivoted from a position parallel with the pallet support to a position parallel with a conveyor belt and back again.
  • the conveyor belt may comprise a series of belts or belts connected in parallel with one another.
  • the printing plate support can be designed as a rake and have a row of tines running parallel to one another. When moving the printing plate support to its position parallel with the conveyor belt, the tines can mesh with the belts or belts. This allows the tines to pass through the gaps between the bands or belts.
  • the printing plate carrier can pass the conveyor belt in a combing manner when picking up a printing plate from the conveyor belt and/or when depositing a printing plate on the conveyor belt.
  • the printing plate support can have a suction device for pneumatically holding a printing plate.
  • the suction device can have one suction opening or preferably several suction openings which are in contact with the printing plate when it is sucked on.
  • the or each suction opening can consist of a rubber-elastic material and/or be designed as a suction cup, which is advantageous in terms of protecting the surface of the plate.
  • the suction device can be connected to a vacuum generator, e.g. B. to a vacuum pump. A vacuum can be generated by this vacuum generator, which is applied to the or each suction port.
  • the suction device can have lifting suction cups, which move out of the printing plate carrier in order to grip the printing plate pneumatically.
  • the suction cups e.g. B. their suction cups are brought into contact with the top printing plate of the plate stack, which is located in the pallet. After that, the lifting suction cups can move back into the printing plate carrier, as a result of which the printing plate that has been gripped is pulled onto or towards the printing plate carrier.
  • the first pallet support and the second pallet support can be pivoted relative to the third pallet support.
  • the first and second pallet carrier can be mounted pivotably relative to the third pallet carrier either independently of one another or together.
  • the first and second pallet carriers can be pivoted about a common geometric axis, which runs in the transverse direction of the printing machine, ie transversely to the row of printing units.
  • the first pallet carrier and the second pallet carrier can be used for their operation, z. B. for said pivoting relative to the third pallet carrier, be arranged on linkages.
  • the coupling gears can be identical.
  • the first pallet carrier and the second pallet carrier can be arranged on only one linkage, z. B. when the two pallet carriers are connected and pivoted together.
  • the first pallet carrier and the second pallet carrier can each be arranged on at least two linkages, e.g. B. when the two pallet carriers are not connected to each other and are pivoted separately.
  • a printing machine 1 comprises printing units 2, 3 arranged in a row for offset printing on sheets, which form a stack 5 in a feeder 4.
  • Each printing unit 2, 3 is equipped with a plate changer 6, 7 for printing plates 8, which has a shaft 9 for fresh printing plates 8 - so-called new plates - and a shaft 10 for used printing plates 8 - so-called old plates.
  • the printing machine 1 is combined with a plate logistics system that promotes the printing plates 8 to the plate changers 6, 7 and back again after use. The operator removes a pallet 12 containing the printing plates 8 from a floor conveyor 11 and transfers the pallet 12 to a pallet lift 13.
  • the orthogonal coordinate system in the drawing includes the vertical direction z and horizontal directions x, y, where x corresponds to the longitudinal direction and y to the transverse direction of the printing machine 1.
  • the pallet lift 13 is arranged in front of the feeder 4 in the x direction and transports the pallet 12 along the z and y directions to a loading station 14 which is arranged above the stack 5 and a suction head 15 of the feeder 4 .
  • the loading station 14 is used for unloading the new boards from the pallet 12 and loading them with old boards and has a first pallet carrier 16 and second pallet carrier 17, which are arranged one behind the other in direction y.
  • the pallet lift 13 has a third pallet carrier 18 .
  • the first pallet carrier 16 and the second pallet carrier 17 are fastened to a carriage 20 via a plurality of linkages 19, which is guided by a rail 21 and adjustable in direction y.
  • the third pallet carrier 18 passes through that pallet carrier 16 or 17 which has previously been moved along the rail 21 in a direction x aligned opposite to the third pallet carrier 18 . With this reaching through, the third pallet carrier 18 transfers or accepts the pallet to or from the other pallet carrier 16 or 17.
  • a pivoting arm 23 belonging to the loading station 14 and having a transport side 25 for the printing plates 8 can be pivoted at its lower end about an axis 24 running in the y direction.
  • the swivel arm 23 can also be referred to as a printing plate support.
  • the swing arm 23 is from its respect figure 1 left end position (shown in solid line) to its right end position (shown in phantom line) and back again, flipping past its vertical orientation each time.
  • the transport side 25 rises obliquely to the top right and extends parallel to the first pallet carrier 16 or second pallet carrier 17 and the respective pallet 12 or 26 therein.
  • the transport side 25 rises obliquely to the top left and it extends parallel or flush with a transport run of a first conveyor belt 27 of a belt conveyor 28 which is arranged above a sheet feed table 29 of the feeder 4.
  • the swivel arm 23 has lifting suction cups 30, which extend from the transport side 25 and take the respective uppermost printing plate 8 of the stack of plates on the pallet 12.
  • the swivel arm 23 swivels with the printing plate 8 sucked in by the suction lifters 30 from the right to the left end position, where the suction lifters 30 move back into the swivel arm 23 in order to deposit the printing plate 8 that has been gripped on the first conveyor belt 27 .
  • the belt conveyor 28 includes a second conveyor belt 31, which is pivotally mounted by an actuator 52 about a geometric axis 32 in a first operating position (shown in solid line) and second operating position (shown in phantom line) alternately.
  • the second conveyor belt 31 is aligned vertically in the first operating position and forms a common conveying plane 33 with the first conveyor belt 27 in the second operating position.
  • the two conveyor belts 27, 31 each consist of a plurality of endless belts which are of the same length and run parallel to one another around deflection rollers.
  • deflection rollers over which the endless belts of the first conveyor belt 27 run, arranged alternately with deflection rollers over which the endless belts of the second conveyor belt 31 run. In other words: the endless belts of the first conveyor belt 27 run in gaps between the endless belts of the second conveyor belt 31.
  • the swivel arm 23 has a row of teeth running in direction y, which are aligned with the gaps between the endless belts of the first conveyor belt 27 and mesh with these gaps in the left end position of the swivel arm 23.
  • the first and second conveyor belts 27, 31 are designed as suction belts, on which the printing plate 8 is held by vacuum during its transport, and each comprise a vacuum box.
  • the vacuum box sucks the pressure plate 8 through the gaps between the endless belts or perforations in the endless belts, so that it is held pneumatically on the endless belts.
  • the belt conveyor 28 transfers the new plates to a plate conveyor 34, which is arranged above the printing units 2, 3, and later takes over the old plates from the plate conveyor 34.
  • the plate conveyor 34 comprises carriages 35, the number of which corresponds to that of the printing units 2, 3 to be supplied with the printing plates 8.
  • the carriages 35 are fastened to an endless traction device 36 or mesh with it, specifically a toothed belt, and are driven jointly by a drive wheel 37 via the traction device 36 .
  • the traction mechanism 36 runs when conveying the new plates from the loading station 14 to the Printing units 6, 7 regarding figure 1 clockwise and when conveying the old plates from the printing units 2, 3 to the loading station 14 counterclockwise.
  • An electric motor connected to the drive wheel 37 as a direct drive is reversed accordingly in order to bring about the change in direction of the traction mechanism 36 .
  • a rail system 38 for guiding the carriage 35 comprises an upper rail piece 39 and a lower rail piece, which is formed by a horizontal rail 40 running in direction x.
  • the entire rail system 38 has an oval or oblong ring shape along which the carriages 35 circulate.
  • the upper and lower rails which are straight and parallel to each other, are connected to each other at their ends by arcuate rails.
  • Cantilever beams 41 with grippers 42 for holding the printing plates 8 by clamping are arranged on the carriages 35 .
  • the bars 41 extend in the y direction over their length, with each bar 41 being at least as long as the pressure plate 8 is wide in the y direction.
  • the number of grippers 42 arranged in a row on a shaft 49 per bar 41 is two in the example and can also be three. When they are transported synchronously with one another along the horizontal rail 40, the pressure plates 8 hang vertically on the beams 41.
  • Control curves 44 for actuating the grippers 42, the carriages 35 with the beams 41, the rail system 38 for guiding the carriages 35 and the traction means 36 for driving the carriages 35 are arranged on a plate 43.
  • the plate 43 is supported by uprights 45, each of which is associated with a different printing unit 2,3.
  • the stands 45 can be designed as telescopic rail guides 50 .
  • Each stand 45 forms or includes a vertical rail 46 for guiding the plate 43.
  • the actuators can be arranged inside the stand 45 .
  • the adjustment of the rail system 38 downwards serves to synchronously insert the new plates into the plate changers 6, 7, especially the shafts 9.
  • Said adjustment upwards also serves to synchronously pull out the old records from the record changers 6, 7, especially the shafts 10.
  • the cams 44 are arranged on a rod 47 on which an actuator 48 engages, which moves the rod 47 in direction x to move the rod 47 to the required position, e.g. B. to open the gripper 42 to switch.
  • Each control cam 44 has a slope inclined towards the x direction, which when the control cam 44 is adjusted in the x direction presses on a cam roller 51 on the plate 43, as a result of which the rod 47 is displaced in the y direction in order to release the grippers via levers connected to the grippers 42 42 to press.
  • the second conveyor belt 31 When the respective printing plate 8 is transferred from the second conveyor belt 31 to the corresponding beam 41, the second conveyor belt 31 is folded down, ie it is in its said first operating position.
  • the pressure plate 8 to be transferred and which is in a vertical position is held on the latter pneumatically, ie by the suction box of the second conveyor belt 31 .
  • the end of the pressure plate 8 pointing upwards projects beyond the second conveyor belt 31 and the conveying plane 33 and can therefore be easily gripped by the grippers 42 .
  • a hook-shaped fold of said protruding end of the printing plate 8 is used to securely fasten the printing plate 8 on the plate cylinder of the printing unit and has the additional effect of securing the printing plate 8 against it slipping out of the grippers 42, which are then closed.
  • the carriage 20 with the first and second pallet carriers 16, 17 is moved along the rail 21 in direction y.
  • the first pallet carrier 16, with the pallet 12 still filled with the new plates, is brought into an active position with the first pallet carrier 16 aligned opposite with respect to direction x with the swivel arm 23 and the second pallet carrier 17 arrives in a passive position on the drive side of the printing machine 1, such as this in figure 2 is shown.
  • the swivel arm 23 takes over the new boards one after the other from the pallet 12 and places them on the belt conveyor 28 .
  • the carriage 20 with the first and second pallet carriers 16, 17 is moved along the rail 21 in the opposite direction.
  • the second pallet carrier 17 with the still empty pallet 26 for the old plates is brought into the active position with the swivel arm 23 aligned opposite with respect to direction x and the first pallet carrier 16 moves into a passive position on the operating side of the printing press 1.
  • the swivel arm 23 takes over when Load the old boards one by one from the belt conveyor 28 and place them in the pallet 26.
  • the first and second pallet carriers 16, 17 are moved together along a common alignment line L, which runs in the direction y.
  • Figures 3a and 3b show that the pallet 12 with new panels is in the third pallet carrier 18 and the latter is in the area of a vertical guide 53 of the pallet lift 13.
  • the floor conveyor 11 and the third pallet carrier 18 mesh, whereby the pallet 12 is transferred from the former to the latter.
  • the third pallet carrier 18, together with the pallet 12 that has been picked up is moved upwards along the vertical guide 53, as in FIG Figure 3a indicated with a movement arrow.
  • the first pallet carrier 16 is still empty, but is already opposite the swivel arm 23, as in Figure 3b evident.
  • the second pallet carrier 17 is here laterally - with respect Figure 3a backwards - pushed out and no longer aligned with the swivel arm 23 in direction x.
  • Figures 4a and 4b show that the third pallet support 18 is in a face-to-face relationship with the first pallet support 16, with the part of the third pallet support 18 carrying the pallet 12 and the pallet 12 being located between the swing arm 23 and the first pallet support 16, as in FIG Figure 4a recognizable.
  • the third pallet carrier 18 is moved into this intermediate position along a horizontal guide 54 of the pallet lift 13 been, as in Figure 4b indicated by a movement arrow.
  • the horizontal guide 54 runs in direction y and, like the vertical guide 53, is designed as a rail.
  • the kinematic chain of the linkage 19 ensures that when the first pallet carrier 16 pivots, it maintains its parallel position with the third pallet carrier 18 with respect to the pallet receiving surfaces. During pivoting, the third pallet carrier 18 and the first pallet carrier 16 interlock and the pallet 12 is transferred from the pallet receiving surface of the third pallet carrier 18 to the pallet receiving surface of the first pallet carrier 16 .
  • the pallet receiving surface of the respective pallet carrier 16 or 18 can be formed by support rods or a support frame.
  • Figures 5a and 5b show that after pivoting, the first pallet carrier 16 carries the pallet 12 and both are located together between the pivot arm 23 and the third pallet carrier 18.
  • the swivel arm 23 successively removes the printing plates 8 from it.
  • the first and second pallet carriers 16, 17 are moved together along the alignment line L, so that the second pallet carrier 17 then moves is in a loading position in which the second pallet carrier 17 is aligned in the x direction with the swivel arm 23 and can work together with this and the third pallet carrier 18 .

Landscapes

  • Sheets, Magazines, And Separation Thereof (AREA)
  • Discharge By Other Means (AREA)
  • Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Delivering By Means Of Belts And Rollers (AREA)
EP20180242.8A 2020-01-20 2020-06-16 Vorrichtung zum handhaben von druckplatten an einer druckmaschine Active EP3851281B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110011254.3A CN113147174A (zh) 2020-01-20 2021-01-06 用于在印刷机上操纵印刷版的设备

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102020101160 2020-01-20

Publications (2)

Publication Number Publication Date
EP3851281A1 EP3851281A1 (de) 2021-07-21
EP3851281B1 true EP3851281B1 (de) 2023-08-09

Family

ID=71103289

Family Applications (3)

Application Number Title Priority Date Filing Date
EP20180242.8A Active EP3851281B1 (de) 2020-01-20 2020-06-16 Vorrichtung zum handhaben von druckplatten an einer druckmaschine
EP20180236.0A Active EP3851279B1 (de) 2020-01-20 2020-06-16 Vorrichtung zum handhaben von druckplatten an einer druckmaschine
EP20180239.4A Active EP3851280B1 (de) 2020-01-20 2020-06-16 Vorrichtung zum handhaben von druckplatten an einer druckmaschine

Family Applications After (2)

Application Number Title Priority Date Filing Date
EP20180236.0A Active EP3851279B1 (de) 2020-01-20 2020-06-16 Vorrichtung zum handhaben von druckplatten an einer druckmaschine
EP20180239.4A Active EP3851280B1 (de) 2020-01-20 2020-06-16 Vorrichtung zum handhaben von druckplatten an einer druckmaschine

Country Status (3)

Country Link
EP (3) EP3851281B1 (zh)
CN (8) CN113135031A (zh)
DE (5) DE102020207419A1 (zh)

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Publication number Priority date Publication date Assignee Title
DE102021122827A1 (de) 2021-09-03 2023-03-09 Koenig & Bauer Ag Vorrichtung und Verfahren zum Zuführen von Druckplatten zu einem Plattenzylinder
DE102022109489A1 (de) 2022-04-20 2023-10-26 Koenig & Bauer Ag Bogenoffsetrotationsdruckmaschine in Aggregatbauweise

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DE102011115777B4 (de) * 2010-11-12 2021-04-22 Heidelberger Druckmaschinen Ag Vorrichtung zum Zuführen einer Druckplatte zu einer Bebilderungseinrichtung
DE102012202533B3 (de) * 2012-02-20 2013-06-20 Koenig & Bauer Aktiengesellschaft Verfahren, Vorrichtung und System zur Bereitstellung eines Satzes von in einer Druckmaschine neu aufzulegender Druckformen
DE102013216664B4 (de) * 2013-08-22 2017-05-18 Koenig & Bauer Ag Verfahren zur Durchführung eines Druckformwechsels sowie Druckmaschinen mit einem Druckturm und einer vertikalbeweglichen Speichereinrichtung
EP3036105B1 (de) * 2013-08-22 2019-05-01 Koenig & Bauer AG Verfahren zum wechseln von druckplatten sowie druckmaschine mit einem druckturm und einer vertikalbeweglichen speichereinrichtung
DE102013216662B4 (de) * 2013-08-22 2017-06-14 Koenig & Bauer Ag Verfahren zum Fördern von Druckformen beim Druckformwechsel sowie Druckmaschinen mit einem Druckturm und einer vertikalbeweglichen Speichereinrichtung
CN105473335B (zh) * 2013-08-22 2018-06-29 柯尼格及包尔公开股份有限公司 用于更换印版的方法以及具有印刷塔和储存装置的印刷机
CN105564885A (zh) * 2014-10-08 2016-05-11 芯发威达电子(上海)有限公司 可变角度的输送带装置
US9604787B1 (en) * 2015-12-09 2017-03-28 Caljan Rite-Hite Aps Adjustable conveyor systems
CN205221752U (zh) * 2015-12-25 2016-05-11 安徽银阳光伏科技有限公司 一种用于多种规格太阳能电池片的丝网印刷输送装置
ITUB20161142A1 (it) * 2016-02-29 2017-08-29 Vismunda Srl Metodo e impianto produttivo automatico per la stampa su celle fotovoltaiche.
CN105931364B (zh) * 2016-04-19 2019-02-26 广州广电运通金融电子股份有限公司 一种分体式票据发放设备及自助金融设备
DE102017210247B4 (de) * 2017-06-20 2023-06-15 Koenig & Bauer Ag Bogenanleger für eine Druckmaschine
CN109334218B (zh) * 2018-10-09 2024-06-21 青州蒙特机械有限公司 用于卫星式柔版印刷机的版辊自动更换设备
DE102018220805A1 (de) * 2018-12-03 2019-09-05 Heidelberger Druckmaschinen Ag Vorrichtung zum Wechseln von Druckplatten in Druckwerken

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CN113135032A (zh) 2021-07-20
CN113147173A (zh) 2021-07-23
CN113135031A (zh) 2021-07-20
DE102020207418A1 (de) 2021-07-22
EP3851279B1 (de) 2023-08-09
CN113147174A (zh) 2021-07-23
CN113135033A (zh) 2021-07-20
CN113135034A (zh) 2021-07-20
DE102020207419A1 (de) 2021-07-22
CN113135036A (zh) 2021-07-20
DE102020207420A1 (de) 2021-07-22
EP3851280A1 (de) 2021-07-21
CN113135035A (zh) 2021-07-20
EP3851280B1 (de) 2023-08-09
EP3851281A1 (de) 2021-07-21
EP3851279A1 (de) 2021-07-21
DE102020207421A1 (de) 2021-07-22

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