EP3931139B1 - Station zur aufnahme von bogenelementen für eine maschine zur herstellung von verpackungen, entsprechende maschine zur herstellung von verpackungen, und verfahren zur aufnahme von bogenelementen für eine maschine zur herstellung von verpackungen - Google Patents

Station zur aufnahme von bogenelementen für eine maschine zur herstellung von verpackungen, entsprechende maschine zur herstellung von verpackungen, und verfahren zur aufnahme von bogenelementen für eine maschine zur herstellung von verpackungen Download PDF

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Publication number
EP3931139B1
EP3931139B1 EP20709490.5A EP20709490A EP3931139B1 EP 3931139 B1 EP3931139 B1 EP 3931139B1 EP 20709490 A EP20709490 A EP 20709490A EP 3931139 B1 EP3931139 B1 EP 3931139B1
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EP
European Patent Office
Prior art keywords
sheet elements
separator
lifting table
horizontal direction
bundle
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
EP20709490.5A
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English (en)
French (fr)
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EP3931139A1 (de
Inventor
Thibault CORREAD
Denis Busa
Claude Convert
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.)
Bobst Lyon SAS
Original Assignee
Bobst Lyon SAS
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Publication of EP3931139A1 publication Critical patent/EP3931139A1/de
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H31/00—Pile receivers
    • B65H31/04—Pile receivers with movable end support arranged to recede as pile accumulates
    • B65H31/08—Pile receivers with movable end support arranged to recede as pile accumulates the articles being piled one above another
    • B65H31/10—Pile receivers with movable end support arranged to recede as pile accumulates the articles being piled one above another and applied at the top of the pile
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H31/00—Pile receivers
    • B65H31/30—Arrangements for removing completed piles
    • B65H31/3054—Arrangements for removing completed piles by moving the surface supporting the lowermost article of the pile, e.g. by using belts or rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H31/00—Pile receivers
    • B65H31/32—Auxiliary devices for receiving articles during removal of a completed pile
    • 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
    • B65H2701/176—Cardboard
    • 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
    • B65H2701/176—Cardboard
    • B65H2701/1762—Corrugated

Definitions

  • the invention relates to a station for receiving plate elements and discharging packs of plate elements for a packaging manufacturing machine.
  • the invention also relates to a machine for manufacturing packaging from plate elements, comprising a station for receiving, stacking and discharging packs of plate elements.
  • the invention also relates to a method for receiving plate elements for a packaging manufacturing machine.
  • a packaging manufacturing machine is commonly used to produce cardboard boxes or crates from sheet elements, for example in the form of corrugated cardboard sheets.
  • the sheet elements are successively fed into the machine, advancing continuously from upstream to downstream in the longitudinal drive direction. They are automatically flexographically printed, cut and upturned, so as to form crate blanks.
  • the sheet elements are received and stacked, and the resulting bundles are then evacuated.
  • a receiving station is responsible for receiving sheet elements and making bundles of sheet elements.
  • the document EP0666234 describes a stacking, separating and evacuating station for packs of plate elements.
  • the station comprises a vertically movable lifting table, receiving falling plate elements to be stacked.
  • the table gradually descends to the level of an output conveyor, recovering and evacuating a pack of plate elements after its formation.
  • a separator moves vertically and horizontally. After the formation of a pack, the separator comes to overhang the lifting table and then comes to interpose itself to support the plate elements of the next pack.
  • the lifting table then transfers the pack just formed, towards the output conveyor which evacuates the pack.
  • the separator is then retracted and the lift table can then retrieve the plate elements from the next pack.
  • Such a station has disadvantages.
  • the plate element at the bottom of the package is very often damaged when the separator is retracted.
  • the separator has a certain inertia. Its movement during a cycle proves difficult to achieve at a speed compatible with the stacking rates required for the plate elements.
  • Such a separator may also prove incompatible with certain methods of transverse alignment of the plate elements.
  • the document EP 0501213 describes a station for stacking, separating and discharging packs of plate elements.
  • the station comprises means for feeding the plate elements, retractable supports forming a temporary stacking magazine, placed above a pack discharging device.
  • Such a station has disadvantages.
  • the first sheet element arriving in the stacking magazine will come into contact with, and be damaged by, the retractable supports.
  • the temporary stacking magazine will be saturated more quickly with sheet elements arriving at high speed, which limits the overall productivity of the printing or converting line.
  • the document EP3378811 discloses a sheet stacking arrangement configured to produce stacks having staggered sheet bundles.
  • the arrangement includes a vertically movable stacking platform.
  • JP4774350 discloses a machine for producing corrugated cardboard boxes.
  • the machine includes a lifting table adapted to receive a stack of sheet elements. When the stack is complete, a pusher device evacuates the stack from the lifting table.
  • JP2006069034 discloses a machine arranged to produce boxes.
  • the machine comprises a stacking device comprising a lifting table vertically movable and a temporary receiving element configured to transiently receive the formed stack and lower it onto the lifting table.
  • the document US5613673 discloses a sheet stacking apparatus configured to produce a continuous stack and comprising a stack separating element.
  • the separating element is horizontally movable and adapted to separate the sheet stream into separate stacks.
  • a main objective of the present invention is to develop a station for receiving plate elements that makes it possible to prevent plate elements and packages from falling.
  • a second objective is to produce a packaging manufacturing machine comprising a station for receiving plate elements and for discharging package of plate elements, installed at the downstream outlet of the machine.
  • Yet another objective is to succeed in implementing a method for receiving plate elements for a packaging manufacturing machine.
  • the package is received transiently and transferred without falling from the separator to the lifting table thanks to their vertical crossing.
  • the transport belts of the lifting table are arranged alternately, so as to be able to cross with the arms of the separator.
  • the arms of the separator constitute a grid for receiving the package being formed, and are able to pass between the transport belts of the lifting table. The package is thus transferred smoothly and without falling from the arms of the separator to the belts of the lifting table, thanks to their vertical crossing.
  • a sheet element is defined, by way of non-exhaustive example, as being made of a material such as paper, cardboard, corrugated cardboard, laminated corrugated cardboard, flexible plastic, or other materials.
  • the arms of the separator can be able to move in the longitudinal horizontal direction, from downstream to upstream, so as to be able to position them above the lifting table, and from upstream to downstream, so that they can be retracted outside the travel of the lifting table.
  • the separator thus firstly comprises a vertically movable support. And, the receiving arms of the separator are driven by a longitudinal horizontal translation movement, separately from the movement of the support.
  • the lifting table can be movable between a high position under the supply arrangement of the plate elements and a low position in a plane analogous to the plane of the discharge conveyor of the package. Since the lifting table is located in its maximum height position directly under the supply arrangement of the plate elements, the plate elements will arrive and descend directly on the lifting table.
  • the belts of the lifting table can advantageously be capable of driving the package from upstream to downstream on the output conveyor.
  • the output conveyor may comprise at least one belt, which is capable of carrying the package from upstream from the lifting table towards downstream.
  • a packaging manufacturing machine is characterized in that it comprises a station for receiving plate elements and discharging packs of plate elements, installed at the downstream outlet of the machine, and having one or more technical characteristics described and claimed below.
  • the package is thus transferred smoothly from the vertically movable separator which descends to the vertically movable table which rises.
  • the step of making the mobile separator enter vertically can preferably be done in the longitudinal horizontal direction from downstream to upstream towards the top of the circulation plane of the plate elements, then in the vertical direction from the top of the circulation plane, towards the bottom of the circulation plane.
  • the step of bringing out the vertically movable separator can be done favorably in the longitudinal horizontal direction from upstream to downstream.
  • the longitudinal direction is defined by referring to the direction of travel or drive of the plate elements in the packaging manufacturing machine, in the plate element receiving station, along their median longitudinal axis.
  • the transverse direction is defined as the direction perpendicular in a horizontal plane to the direction of travel of the plate elements.
  • the upstream and downstream directions are defined by referring to the direction of movement of the plate elements, following the longitudinal direction throughout the packaging manufacturing machine, from the machine inlet to the machine outlet and the plate element receiving station.
  • a packaging manufacturing machine such as a flexographic printing machine 1 for corrugated cardboard sheets 2, comprises a station for receiving plate elements and discharging packs 23, 24 of plate elements 3.
  • the entire flexographic printing part, including the various printing units 4, is partially shown in dashed lines.
  • the receiving station 3 is mounted downstream of the last printing unit of the machine 1.
  • Station 3 comprises a frame 6 with vertical side posts 7.
  • Station 3 comprises a sheet feed arrangement 8, mounted partly upper part of the frame 6.
  • the arrangement 8 includes in particular a suction to create a vacuum 9.
  • the arrangement 8 further comprises transport belts 11 and a grid provided with longitudinal bars, the upper face of the sheets 2 being in contact with the transport belts 11.
  • the sheets 2 which are printed arrive one after the other from upstream to downstream in a circulation plane by being driven upstream of the station 3 by rollers and a vacuum suction (not visible), known under the name of ceiling, then they are released at the level of the arrangement 8.
  • the arrangement 8 comprises a leaf-breaking device 12 mounted on the grid to separate the leaves 2 from the conveyor belts 11 and cause them to fall (see Fig. 2 ).
  • the leaf-cutting device 12 comprises, for example, a crank-type connecting rod mechanism 13 actuated sequentially depending on the arrival of the leaves 2.
  • Station 3 comprises an output conveyor 14 in the form of a conveyor belt or several conveyor belts 15, transporting the final package 23, 24 from upstream of station 3 to the output downstream.
  • Station 3 comprises a lifting table 16 movable in the vertical direction.
  • Table 16 comprises several endless conveyor belts 17 extending in a longitudinal horizontal direction. Belts 17 are driven by a suitable motor and transport the final package 23, 24 from upstream to the output conveyor 14. Table 16 rises and falls while being driven by a motor and chains 19.
  • the station 3 comprises a separator 21, which comprises several receiving arms 22 deploying in the longitudinal horizontal direction.
  • the arms 22 are movable longitudinally from upstream to downstream and vice versa. Some arms 22 can remain in the retracted position in the downstream position, this for example depending on the size of the sheets 2 constituting the bundle 23, 24.
  • the separator 21 rises and falls in the vertical direction while being driven by a motor and toothed belts.
  • the receiving arms 22 are inserted between the belts 17, without there being any interaction between the arms 22 and the belts 17 (see Fig. 3 ).
  • the method of receiving plate elements 2 and discharging bundles 23, 24 of plate elements 3 for the packaging manufacturing machine is illustrated in the Figs. 4 to 15 .
  • a first step of the process ( Figs. 4 and 5 ) plate elements, in the form of sheets 2, arriving successively (Arrow F in Fig. 5 ) from the flexo printing part 4 of the flexo printing machine 1 are successively deposited on the vertically movable table 16, so as to form a first pack of sheets 23.
  • a third step of the process (Figs. 5 And 6 ), the vertically movable separator 21 is entered (Arrow ES in Fig. 5 ), with several of its arms 22 being inserted above the table 16.
  • the separator 21 with its arms 22 In its starting waiting position (see Fig. 5 ), the separator 21 with its arms 22 is positioned above the leaf feed arrangement 8 and the leaf-removing device 12.
  • the separator 21 with its arms 22 In its functional arrival position (see Fig. 6 ), the separator 21 with its arms 22 is positioned above the first bundle of leaves 23 and below the leaf feed arrangement 8 and the leaf-removing device 12.
  • sheets 2 arriving successively (Arrow F in Figs. 6 and 7 ) from the flexo printing part 4 of the flexo printing machine 1 are successively deposited on the separator 21, and more precisely on its arms 22, so as to form a second pack of sheets 24.
  • the first packet formed 23 is evacuated horizontally (Arrows O in Figs. 6 to 12 ) out of the table 16.
  • the endless conveyor belts 17 of the table 16 are driven from upstream to downstream.
  • the conveyor belt or belts 15 of the output conveyor 14 are simultaneously driven from upstream to downstream.
  • a sixth step of the process ( Figs. 7 to 9 ) the separator 21 with the successively deposited sheets is lowered vertically (Arrow DS in Figs. 7 to 9 ) to complete the formation of the second pack of leaves 24.
  • table 16 is raised vertically (UT arrow in Fig. 9 ). Table 16 is empty and no longer carries any packages.
  • separator 21 is out (OS arrow in Fig. 11 ) out of the travel path of the table 16.
  • the arms 22 of the separator 21 are moved horizontally from their crossed upstream position at the level of the table 16 ( Fig. 10 ) to a downstream position located substantially above the outlet conveyor 14 ( Fig. 12 ).
  • the separator 21 is raised vertically (US arrow in Fig. 13 ) up to the horizontal level of the leaf feed arrangement 8 and the leaf-cutting device 12.
  • the separator 21 with its arms 22 is repositioned above the leaf feed arrangement 8 and the leaf-removing device 12.
  • the arms 22 of the separator 21 are moved (Arrow IS in Fig. 14 ) horizontally from their upstream position located substantially above the outlet conveyor 14 ( Figs. 12 to 14 ) to an upstream waiting position located substantially above the leaf feed arrangement 8 and the leaf-cutting device 12 ( Fig. 15 ).
  • the upstream waiting position ( Fig. 15 ) is substantially similar to the starting position ( Figs. 4 and 5 ).
  • the cycle can thus begin again.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Forming Counted Batches (AREA)
  • Basic Packing Technique (AREA)
  • Containers And Plastic Fillers For Packaging (AREA)
  • Attitude Control For Articles On Conveyors (AREA)
  • Separation, Sorting, Adjustment, Or Bending Of Sheets To Be Conveyed (AREA)
  • Pile Receivers (AREA)

Claims (10)

  1. Station zur Aufnahme von Plattenelementen und zum Abführen von Plattenelementpaketen (3) für eine Maschine zur Herstellung von Verpackungen, umfassend:
    - eine Anordnung zum Zuführen der Plattenelemente aufeinander folgend (8),
    - einen Hubtisch (16), der in einer vertikalen Richtung beweglich ist, der mehrere endlose Förderbänder (17) umfasst, die sich in einer horizontalen Längsrichtung erstrecken, um die Plattenelemente in Paketform aufzunehmen, und
    - einen Ausgabeförderer (14), um die Plattenelemente in Paketform abzuführen, dadurch gekennzeichnet, dass er weiter umfasst:
    - eine Trennvorrichtung (21), die in der vertikalen Richtung beweglich ist, die mehrere Aufnahmearme (22) umfasst, die in der horizontalen Längsrichtung ausfahren, um die Plattenelemente in Paketform vorübergehend aufzunehmen, wobei die Arme (22) so angeordnet sind, dass sie sich in der vertikalen Richtung kreuzen können, ohne mit den Bändern (17) des Hubtisches (16) in Wechselwirkung zu treten.
  2. Station nach Anspruch 1, dadurch gekennzeichnet, dass die Arme (22) der Trennvorrichtung (21) geeignet sind, sich in der horizontalen Längsrichtung von stromabwärts nach stromaufwärts zu bewegen, um sie über dem Hubtisch (16) zu positionieren, und von stromaufwärts nach stromabwärts, um sie aus dem Hub des Hubtisches (16) einzufahren.
  3. Station nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Trennvorrichtung (21) umfasst:
    - einen Träger, der in einer vertikalen Richtung verschiebbar montiert ist,
    - mindestens einen Arm, der so angebracht ist, dass er sich in der horizontalen Längsrichtung in Bezug auf den Träger bewegen kann, wobei die Bewegung des Arms seine auskragende Länge in Bezug auf den Träger auf einer ersten Seite in der horizontalen Längsrichtung ändert, und
    - ein Antriebssystem zum Bewegen des Arms in der horizontalen Längsrichtung, das dazu konfiguriert ist, gleichzeitig den Arm zur Bewegung in der horizontalen Längsrichtung anzutreiben und einen anderen der Arme in seiner Längsposition eingefahren zu halten.
  4. Station nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass der Hubtisch (16) zwischen einer oberen Position unter der Zuführanordnung (8) und einer unteren Position in einer Ebene analog zur Ebene des Ausgabeförderers (14) beweglich ist.
  5. Station nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass die Bänder (17) des Hubtisches (16) geeignet sind, das Paket von stromaufwärts nach stromabwärts auf den Ausgabeförderer (14) anzutreiben.
  6. Station nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass der Ausgabeförderer (14) mindestens ein Band umfasst, das geeignet ist, das Paket von stromaufwärts von dem Tisch (16) nach stromabwärts anzutreiben.
  7. Maschine zur Herstellung von Verpackungen, dadurch gekennzeichnet, dass sie eine Station zur Aufnahme von Plattenelementen und zum Abführen von Plattenelementpaketen (3) nach einem der vorstehenden Ansprüche umfasst, die am stromabwärtigen Ausgang der Maschine (1) installiert ist.
  8. Verfahren zur Aufnahme von Plattenelementen für eine Maschine zur Herstellung von Verpackungen (1), dadurch gekennzeichnet, dass es die folgenden Schritte umfasst:
    - Aufbringen von Plattenelementen nacheinander auf einen Hubtisch (16), der vertikal beweglich ist und mehrere endlose Förderbänder (17) umfasst, die sich in einer horizontalen Längsrichtung erstrecken, um so ein erstes Plattenelementpaket (23) zu bilden;
    - vertikales Absenken des Hubtisches (16) mit den nacheinander aufgebrachten Plattenelementen, um die Bildung des ersten Plattenelementpakets (23) abzuschließen;
    - Einfahren einer vertikal beweglichen Trennvorrichtung (21) über dem Hubtisch (16), wobei die Trennvorrichtung mehrere Aufnahmearme (22) umfasst, die entlang der horizontalen Längsrichtung ausfahren;
    - Aufbringen der Plattenelemente nacheinander auf die Trennvorrichtung (21), um so ein zweites Plattenelementpaket (24) zu bilden;
    - horizontales Abführen des ersten gebildeten Pakets (23) von dem Hubtisch (16);
    - vertikales Absenken der Trennvorrichtung (21) mit den nacheinander aufgebrachten Plattenelementen, um die Bildung des zweiten Plattenelementpakets (24) abzuschließen;
    - vertikales Hochfahren des Hubtisches (16);
    - Überkreuzen des vertikal hochfahrenden leeren Hubtisches (16) mit der sich vertikal absenkenden Trennvorrichtung (21), wobei die Förderbänder (17) des Hubtisches (16) abwechselnd angeordnet sind, um sich mit den Aufnahmearmen (22) der Trennvorrichtung zu überkreuzen und um das zweite Plattenelementpaket (24) von der Trennvorrichtung (21) zu dem Hubtisch (16) aufzunehmen; und
    - Herausführen der Trennvorrichtung (21) aus dem Bewegungsweg des Hubtisches (16).
  9. Verfahren nach Anspruch 8, dadurch gekennzeichnet, dass der Schritt des Einführens der Trennvorrichtung (21) in der horizontalen Längsrichtung von stromabwärts nach stromaufwärts in Richtung der Oberseite der Umlaufebene der Plattenelemente und dann in der vertikalen Richtung von der Oberseite der Umlaufebene in Richtung der unteren Ebene der Umlaufebene erfolgt.
  10. Verfahren nach Anspruch 8 oder 9, dadurch gekennzeichnet, dass der Schritt des Herausführens der Trennvorrichtung (21) in der horizontalen Längsrichtung von stromaufwärts nach stromabwärts erfolgt.
EP20709490.5A 2019-02-26 2020-02-24 Station zur aufnahme von bogenelementen für eine maschine zur herstellung von verpackungen, entsprechende maschine zur herstellung von verpackungen, und verfahren zur aufnahme von bogenelementen für eine maschine zur herstellung von verpackungen Active EP3931139B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1901940A FR3093096B1 (fr) 2019-02-26 2019-02-26 Station et procédé de réception d’éléments en plaque pour une machine de fabrication d’emballage
PCT/EP2020/025087 WO2020173604A1 (fr) 2019-02-26 2020-02-24 Station et procede de reception d'elements en plaque pour une machine de fabrication d'emballage

Publications (2)

Publication Number Publication Date
EP3931139A1 EP3931139A1 (de) 2022-01-05
EP3931139B1 true EP3931139B1 (de) 2024-09-04

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EP20709490.5A Active EP3931139B1 (de) 2019-02-26 2020-02-24 Station zur aufnahme von bogenelementen für eine maschine zur herstellung von verpackungen, entsprechende maschine zur herstellung von verpackungen, und verfahren zur aufnahme von bogenelementen für eine maschine zur herstellung von verpackungen

Country Status (9)

Country Link
US (1) US11932507B2 (de)
EP (1) EP3931139B1 (de)
JP (1) JP7432613B2 (de)
KR (1) KR102659385B1 (de)
CN (1) CN113474273A (de)
DK (1) DK3931139T3 (de)
FR (1) FR3093096B1 (de)
TW (1) TWI776129B (de)
WO (1) WO2020173604A1 (de)

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TWI776129B (zh) 2022-09-01
KR102659385B1 (ko) 2024-04-19
JP7432613B2 (ja) 2024-02-16
KR20210118133A (ko) 2021-09-29
US11932507B2 (en) 2024-03-19
JP2022521778A (ja) 2022-04-12
FR3093096B1 (fr) 2021-04-23
EP3931139A1 (de) 2022-01-05
FR3093096A1 (fr) 2020-08-28
DK3931139T3 (da) 2024-10-07
TW202104053A (zh) 2021-02-01
US20220089400A1 (en) 2022-03-24
CN113474273A (zh) 2021-10-01
WO2020173604A1 (fr) 2020-09-03

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