EP1419969B1 - Dispositif et procédé de préhension et de redressement d' ébauches de carton - Google Patents

Dispositif et procédé de préhension et de redressement d' ébauches de carton Download PDF

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Publication number
EP1419969B1
EP1419969B1 EP02425698A EP02425698A EP1419969B1 EP 1419969 B1 EP1419969 B1 EP 1419969B1 EP 02425698 A EP02425698 A EP 02425698A EP 02425698 A EP02425698 A EP 02425698A EP 1419969 B1 EP1419969 B1 EP 1419969B1
Authority
EP
European Patent Office
Prior art keywords
axis
swing arm
blanks
suction means
carton
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.)
Expired - Lifetime
Application number
EP02425698A
Other languages
German (de)
English (en)
Other versions
EP1419969A1 (fr
Inventor
Giuseppino Naldi
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.)
Romaco SRL
Original Assignee
Romaco SRL
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
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Application filed by Romaco SRL filed Critical Romaco SRL
Priority to AT02425698T priority Critical patent/ATE296757T1/de
Priority to DE60204469T priority patent/DE60204469T2/de
Priority to EP02425698A priority patent/EP1419969B1/fr
Publication of EP1419969A1 publication Critical patent/EP1419969A1/fr
Application granted granted Critical
Publication of EP1419969B1 publication Critical patent/EP1419969B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B43/00—Forming, feeding, opening or setting-up containers or receptacles in association with packaging
    • B65B43/26—Opening or distending bags; Opening, erecting, or setting-up boxes, cartons, or carton blanks
    • B65B43/30—Opening or distending bags; Opening, erecting, or setting-up boxes, cartons, or carton blanks by grippers engaging opposed walls, e.g. suction-operated
    • B65B43/305—Opening or distending bags; Opening, erecting, or setting-up boxes, cartons, or carton blanks by grippers engaging opposed walls, e.g. suction-operated specially adapted for boxes, cartons or carton blanks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2100/00—Rigid or semi-rigid containers made by folding single-piece sheets, blanks or webs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2100/00—Rigid or semi-rigid containers made by folding single-piece sheets, blanks or webs
    • B31B2100/002—Rigid or semi-rigid containers made by folding single-piece sheets, blanks or webs characterised by the shape of the blank from which they are formed
    • B31B2100/0022—Rigid or semi-rigid containers made by folding single-piece sheets, blanks or webs characterised by the shape of the blank from which they are formed made from tubular webs or blanks, including by tube or bottom forming operations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2120/00—Construction of rigid or semi-rigid containers
    • B31B2120/30—Construction of rigid or semi-rigid containers collapsible; temporarily collapsed during manufacturing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/02—Feeding or positioning sheets, blanks or webs
    • B31B50/04—Feeding sheets or blanks
    • B31B50/06—Feeding sheets or blanks from stacks
    • B31B50/062—Feeding sheets or blanks from stacks from the underside of a magazine
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/74—Auxiliary operations
    • B31B50/76—Opening and distending flattened articles
    • B31B50/80—Pneumatically

Definitions

  • the present invention relates to a device for picking up and erecting carton blanks.
  • the invention refers to a device and a method for picking up flat carton blanks made of cardboard or stiff paper, erecting them to a tubular shape and placing them on a conveyor forming part of a packaging line.
  • suction pickup means such as suction cups or similar means, which extract the blanks one by one from a feed magazine where the blanks are stacked flat, and contact elements designed to erect each blank by moving relative to the blank itself.
  • suction pickup means such as suction cups or similar means
  • contact elements designed to erect each blank by moving relative to the blank itself.
  • These devices also place the substantially erect blank on a conveyor, normally a conveyor belt, which transfers it to the next station on the packaging line where the container is given its final shape and filled with products.
  • One disadvantage is due to the complex linkage and large number of actuators necessary to perform all the movements to pick up, erect and then release the carton.
  • Document DE3010891 discloses a device for picking up and erecting carton blanks comprising a swing arm that pivots about a first axis of rotation and is mobile between a first end position, where it picks up a carton blank from a feed station, in which the carton blanks are stacked flat, and a second end position, where it releases the blank, after erecting it to a tubular configuration, and transfers it to corresponding transfer means.
  • the swing arm comprises and mounts first and second suction means engaging with the flat carton blank at each of two opposite faces.
  • the aim of the present invention is to overcome the above mentioned disadvantages.
  • the invention accordingly provides a device as described in claim 1, for picking up and erecting carton blanks.
  • the numeral 1 denotes in its entirety a part of a line for packing products into containers (not illustrated) made from blanks 2. More specifically, but without restricting the scope of the invention, the blanks 2 are made of cardboard or stiff paper.
  • the line 1 comprises a feed station 3 where the blanks 2 are stacked flat in a magazine 4.
  • the magazine 4 is of the known type and therefore not described in detail.
  • the flat blanks 2 present a lower first face 5 and an upper second face 6, which are substantially planar, parallel and opposite to each other, each of the faces 5, 6 having two main panels 5a, 5b, 6a, 6b, respectively, which will form the side walls of the finished container.
  • the line 1 comprises a device 7 for picking up and erecting the blanks 2, the device being designed to extract the blanks 2 from the magazine 4, to erect them into a tubular shape and to transfer them, at a transfer station 8, to respective pickup elements 9 of a conveyor belt 10, which is of known type and therefore not described in detail.
  • the pickup and erection device 7 comprises a swing arm 11 keyed at one end of it 11a to a first shaft 12 having a respective axis A1.
  • the first shaft 12 is fitted inside a hole 13 in the centre of a first disc 14 that is coaxial with the first shaft 12 itself, the first disc 14 being fixed relative to the axis A1.
  • the arm 11 At a second end 11b of it, longitudinally opposite the first end 11a, the arm 11 comprises a first suction cup 15 mounted on a block 16 attached to the arm 11.
  • the arm 11 Close to the second end 11b, the arm 11 also mounts a mobile member 17 which is slidably engaged between two idle rollers, labelled 18 and 19, which are pivoted on respective pins 18a and 19a attached to the arm 11.
  • the mobile member 17 has the shape of a crown wheel sector whose teeth 22 extend along a perimetric portion of it 17a.
  • the mobile member 17 engages with the rollers 18, 19 in such a way as to swing about a second axis of rotation A2, parallel to the first axis of rotation A1, positioned on the outside of the arm 11 at the centre of the crown wheel of which the mobile member 17 constitutes a sector.
  • a second suction cup 20 mounted on a block 21 attached to the member 17.
  • the pickup and erection device 7 further comprises a toothed wheel 23 mounted on the arm 11 and pivoted on a third axis A3 parallel to the first axis A1.
  • the wheel 23 is designed to mesh with the teeth 22 of the mobile member 17.
  • Part of a peripheral surface 14a of the first disc 14 has looped around it a toothed belt 24 whose toothed inside face is in contact with the peripheral surface 14a itself.
  • the toothed belt 24 is attached to the first disc 14 by a fixing element 25.
  • the toothed belt 24 is looped around the first disc 14 and around a pulley 26 that is keyed to a second shaft 27 mounted on the arm 11 and rotatable about a fourth axis A4 parallel to the first axis A1.
  • the arm 11 mounts two idle rollers 26a, 26b which press the toothed belt 24 inwards so that the toothed belt 24 is held well against the pulley 26.
  • the second shaft 27 has a second disc 28 keyed to it longitudinally opposite the pulley 26 and coaxial with the latter.
  • a first link 29 is eccentrically pivoted to the second disc 28 by a first end of it 29a.
  • the first link 29 is eccentrically pivoted to the toothed wheel 23.
  • the line 1 also comprises a device 31 for driving the pickup and erection device 7.
  • the device 31 comprises a four-point linkage 32 defined by an upper arm 33, a lower arm 34 and a second link 35 connecting the two arms.
  • the upper arm 33 and the lower arm 34 are connected by their ends 33a, 34a, respectively, to the first shaft 12, to which the arm 11 is keyed, and to a third shaft 36 that is parallel to the shaft 12 and positioned below it.
  • the third shaft 36 is also rigidly connected to a drive rod 37.
  • the rod 37 transmits to the four-point linkage 32 a reciprocating drive motion provided through a rod-like element 38 by a motor which is neither illustrated or described since it is well within the knowledge of one of ordinary skill in the art.
  • the first suction cup 15 and the related block 16 mounted on the arm 11 constitutes, for the pickup and erection device 7, first suction means 40 for holding the carton blank 2.
  • the second suction cup 20 and the related block 21 mounted on the mobile member 17 constitutes, for the pickup and erection device 7, second suction means 41 for holding the carton blank 2.
  • the suction cups 15, 20 are connected by respective conduits 42 to a vacuum source represented symbolically as a block 43 in Figure 1.
  • the aforementioned conveyor belt 10 and the respective pickup elements 9 constitute, for the packing line 1, means 44 for transferring the carton blanks 2 after they have been erected to tubular form.
  • the drive device 31 causes the swing arm 11 to turn alternately in both directions about the axis A1, between a first end position, where it picks up a carton blank 2 from the feed station 3, and a second end position, where it releases the blank 2 onto the transfer station 8.
  • the first disc 14, the toothed belt 24, the pulley 26, the second disc 28, the first link 29, the toothed wheel 23 and the mobile member 17 together constitute a kinematic chain which, when the arm 11 swings about the axis A1, causes the simultaneous swinging of the mobile member 17 according to a defined transmission ratio.
  • an angular movement of the swing arm 11 about its axis A1 is transmitted by the toothed belt 24 to the pulley 26 which rotates and thus causes the second disc 28 attached to it to rotate about the axis A4.
  • the first link 29, actuated by the second disc 28, transmits a swinging motion to the toothed wheel 23 which meshes with the mobile member 17 and thus causes it to slide on the idle rollers 18, 19 according to a swinging motion about the second axis A2.
  • the first suction cup 15, which is fixed to the arm 11, moves into contact with the lower face 5 of the carton blank 2 and, following activation of the vacuum source 43 by a control unit that is not illustrated, grips the main panel 5a of the carton blank 2.
  • Figure 3 illustrates a first intermediate position of the arm 11 between the aforementioned first and second end positions.
  • the suction cups 15, 20 are as close together as possible and the second cup 20 is in contact with the upper face 6 of the carton blank 2, which is still flat. More specifically, the second cup 20 grips the main panel 6a adjacent to the panel 5a of the lower face 5 and connected to the latter by a crease 39.
  • FIG 4 illustrates a second intermediate position of the arm 11 between the aforementioned first and second end positions.
  • the suction cups 15 and 20 which are both gripping the respective main panels 5a, 6a, have started moving away from each other, thus causing the panels 5a, 6a to rotate about the crease 39.
  • This movement of the suction cups 15, 20 is achieved by the sliding of the mobile member 17 on the idle rollers 18, 19 as a result of the clockwise rotation, indicated by the arrow F1 in the drawings, of the toothed wheel 23 that meshes with the mobile member 17 itself.
  • the drive device 31 then rotates the swing arm 11 back in an anticlockwise direction, indicated by the arrow F2 in Figure 5, to the first pickup position, illustrated in Figure 2, and another cycle in which the next carton blank 2 is extracted, erected and released is started.
  • the present invention therefore advantageously achieves the aim of providing a compact device for picking up and erecting the carton blanks 2.
  • the pickup and erection device 7 does not require any adjustments to erect carton blanks 2 of many different sizes, since it acts on two adjacent main panels 5a, 6a of the carton blank 2 and erects the carton through a positive action.
  • the action by which the carton blanks 2 are erected by the device 7 according to the invention is positive and no contact elements need to be used.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Supplying Of Containers To The Packaging Station (AREA)
  • Container Filling Or Packaging Operations (AREA)
  • Wrapping Of Specific Fragile Articles (AREA)
  • Making Paper Articles (AREA)

Claims (6)

  1. Un dispositif de préhension et de redressement d'ébauches de carton (2), dans une ligne (1) d'emballage de produits dans des contenants réalisés à partir de ces ébauches à plat (2), comprenant un bras oscillant (11) qui pivote autour d'un premier axe de rotation (A1) et est mobile, par rapport au premier axe (A1), au moins entre une première position extrême, dans laquelle il prélève une ébauche de carton (2) d'une station d'alimentation (3), où les ébauches de carton (2) sont empilées à plat et présentent deux faces opposées (5, 6), parallèles et essentiellement planes, chacune des faces (5, 6) ayant au moins deux panneaux principaux (5a, 5b, 6a, 6b) qui constitueront les parois latérales d'un contenant fini, et une seconde position extrême, dans laquelle il relâche l'ébauche (2), après l'avoir redressée dans une configuration tubulaire, et la transfère à des moyens de transfert (44) correspondants, où le bras oscillant (11) comprend et supporte des premier et second moyens d'aspiration (40, 41), les premier et second moyens d'aspiration (40, 41) assujettissant l'ébauche de carton (2) à plat au niveau, respectivement, de chacune de ses deux faces opposées (5, 6), le premier moyen d'aspiration (40) étant associé au bras oscillant (11) ; ledit dispositif étant caractérisé en ce que le second moyen d'aspiration (41) comprend un organe mobile (17) qui coulisse par rapport au bras oscillant (11) ; l'organe mobile (17) ayant la forme d'un secteur de couronne présentant une denture (22) le long d'une portion (17a) de son périmètre ; le bras oscillant (11) comprenant une roue dentée (23) montée de façon pivotante sur un troisième axe (A3) parallèle au premier axe (A1) et destinée à s'engrener dans la denture (22) de l'organe mobile (17) ; la roue dentée (23) étant mue par un mécanisme à manivelle (30), la manivelle (28) étant destinée à osciller autour d'un quatrième axe (A4) sur actionnement du bras oscillant (11).
  2. Le dispositif selon la revendication 1, caractérisé en ce que les premier et second moyens d'aspiration (40, 41) assujettissent et retiennent l'ébauche de carton par deux de ses panneaux principaux (5a, 6a), les panneaux (5a, 6a) étant adjacents entre eux et raccordés par une pliure (39) réalisée dans l'ébauche de carton (2) elle-même, la pliure (39) étant essentiellement parallèle à l'axe de rotation (A1) du bras oscillant (11).
  3. Le dispositif selon la revendication 1, caractérisé en ce que, entre la première position extrême de préhension et la seconde position extrême de relâche des ébauches de carton (2), les premier et second moyens d'aspiration (40, 41) se déplacent l'un par rapport à l'autre selon un mouvement d'oscillation autour d'un deuxième axe de rotation (A2) parallèle au premier axe de rotation (A1) du bras oscillant (11).
  4. Le dispositif selon la revendication 1, caractérisé en ce que le deuxième axe de rotation (A2) coïncide essentiellement avec la pliure (39) située entre les panneaux principaux (5a, 6a) adjacents de l'ébauche de carton (2).
  5. Le dispositif selon la revendication 1, caractérisé en ce que la manivelle (28) est actionnée par une courroie crantée (24) enroulée au moins partiellement autour d'un disque (14) qui est coaxial au premier axe (A1) et fixe par rapport à ce dernier.
  6. Le dispositif selon la revendication 1, caractérisé en ce que chacun des premier et second moyens d'aspiration (40, 41) comprend une ventouse (15, 20) qui est reliée de façon fluide à une source de vide (43).
EP02425698A 2002-11-15 2002-11-15 Dispositif et procédé de préhension et de redressement d' ébauches de carton Expired - Lifetime EP1419969B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
AT02425698T ATE296757T1 (de) 2002-11-15 2002-11-15 Vorrichtung und verfahren zum aufnehmen und aufrichten von kartonzuschnitten
DE60204469T DE60204469T2 (de) 2002-11-15 2002-11-15 Vorrichtung zum Aufnehmen und Aufrichten von Kartonzuschnitten
EP02425698A EP1419969B1 (fr) 2002-11-15 2002-11-15 Dispositif et procédé de préhension et de redressement d' ébauches de carton

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP02425698A EP1419969B1 (fr) 2002-11-15 2002-11-15 Dispositif et procédé de préhension et de redressement d' ébauches de carton

Publications (2)

Publication Number Publication Date
EP1419969A1 EP1419969A1 (fr) 2004-05-19
EP1419969B1 true EP1419969B1 (fr) 2005-06-01

Family

ID=32116369

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02425698A Expired - Lifetime EP1419969B1 (fr) 2002-11-15 2002-11-15 Dispositif et procédé de préhension et de redressement d' ébauches de carton

Country Status (3)

Country Link
EP (1) EP1419969B1 (fr)
AT (1) ATE296757T1 (fr)
DE (1) DE60204469T2 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITBO20110486A1 (it) 2011-08-04 2013-02-05 Morassut Barbara Metodo e apparecchiatura per l'alimentazione di fustellati tubolari a una macchina confezionatrice
ITMI20131443A1 (it) * 2013-09-04 2015-03-05 Pacbro S R L Macchina e metodo per la realizzazione di scatole
DE102019101816A1 (de) * 2019-01-25 2020-07-30 Sig Technology Ag Verfahren und Vorrichtung zum wenigstens teilweisen Auffalten von flachgefalteten Packungsmänteln

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3010891A1 (de) * 1980-03-21 1981-10-01 Robert Bosch Gmbh, 7000 Stuttgart Vorrichtung zum entnehmen, oeffnen und aufrichten von faltschachtelzuschnitten
DE3241693A1 (de) * 1982-11-11 1984-05-17 Robert Bosch Gmbh, 7000 Stuttgart Kartoniermaschine mit einer vorrichtung zum aufrichten und bereitstellen von faltschachteln
DE3941867A1 (de) * 1989-12-19 1991-06-20 Bosch Gmbh Robert Vorrichtung zum ueberfuehren flacher gegenstaende, insbesondere faltschachteln
US5613828A (en) * 1994-07-19 1997-03-25 Thomas J. Lipton Co., Division Of Conopco, Inc. Handling partly completed containers
IT1308336B1 (it) * 1999-01-13 2001-12-11 Ronchi Mario S R L Macchina per il confezionamento di contenitori con parte di formaturadelle scatole parallela alla direzione di avanzamento dei contenitori

Also Published As

Publication number Publication date
DE60204469T2 (de) 2006-05-18
EP1419969A1 (fr) 2004-05-19
DE60204469D1 (de) 2005-07-07
ATE296757T1 (de) 2005-06-15

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