EP3621884B1 - Dispositif d'application de feuilles de papier pré-collées sur des boîtes en papier ou en carton - Google Patents

Dispositif d'application de feuilles de papier pré-collées sur des boîtes en papier ou en carton Download PDF

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Publication number
EP3621884B1
EP3621884B1 EP18730850.7A EP18730850A EP3621884B1 EP 3621884 B1 EP3621884 B1 EP 3621884B1 EP 18730850 A EP18730850 A EP 18730850A EP 3621884 B1 EP3621884 B1 EP 3621884B1
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EP
European Patent Office
Prior art keywords
paper
box
rotating brush
support
walls
Prior art date
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Active
Application number
EP18730850.7A
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German (de)
English (en)
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EP3621884A1 (fr
EP3621884C0 (fr
Inventor
Renzo Santini
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.)
Sa Te Srl
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Sa Te Srl
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Publication of EP3621884C0 publication Critical patent/EP3621884C0/fr
Publication of EP3621884B1 publication Critical patent/EP3621884B1/fr
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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
    • B65B49/00—Devices for folding or bending wrappers around contents
    • B65B49/08—Reciprocating or oscillating folders
    • 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
    • B31B50/26—Folding sheets, blanks or webs
    • B31B50/44—Folding sheets, blanks or webs by plungers moving through folding dies
    • 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
    • B31B2105/00—Rigid or semi-rigid containers made by assembling separate 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
    • B31B2120/00—Construction of rigid or semi-rigid containers
    • B31B2120/50—Construction of rigid or semi-rigid containers covered or externally reinforced

Definitions

  • the invention refers to a device for applying sheets of pre-glued paper to paper or cardboard boxes, in particular a system to allow the application of pre-glued paper to the side or bottom walls of the box, which prevents the formation of air bubbles.
  • a similar defect may also occur on the coated bottom of the box, caused by a low pressure force of the "under mould” pump against the box itself.
  • the standard configuration of the heads of the coating machine provides for the anchoring of the sheet spreading brushes directly on the head itself rather than on its base, thus linking the vertical movement of one to the that of the other, and thus fixing the distance that separates the "wrapping" assembly from the brush itself, thus forcing the rod, even for low boxes, to descend beyond what is necessary to reach the press and the strip, resulting in the loss of productivity of the machine.
  • WO2015079342 describes a machine and a method for covering paper or cardboard boxes comprising a vertical movable plane supporting the sheet and the box, means for folding the sheet on the box and the contact plates positioned outside the box, to prevent the sides of the box and the sheet pressing elements on the walls of the box from moving outwards, the sheet pressing elements being movable with respect to the plates so as to allow, in contrast with the contact plates, the folding and adhesion of the sheet of paper to the box.
  • WO2013098682 it also known a device for applying sheets of pre-glued paper to cardboard boxes in which a rotating brush is provided for folding the vertical outer flaps of the sheet beyond the walls of a box, and a support for a horizontal strip is provided for folding the horizontal outer flaps.
  • an horizontal presser is configured to apply the pre-glued sheets to the walls of the box, while a top holder is vertically movable to insert a counter-mould in the box and to wrap the external flaps of the folded sheet on the internal walls of the box
  • a first advantage is that the lack of mechanical connection elements in the system, between the press and the strip, allows wrapping sequences to remove the presence of bubbles below the paper coating, this is possible by performing a series of successive pressing of the wrapping paper, from top to bottom.
  • a further advantage is that the system allows trapped air on the bottom to escape as it includes a "under mould” pump, a single or multistage telescopic cylinder, that is in contrast to the mould and pushed down by it in its work cycle; during this step, the valve that controls the air inlet and outlet from the pump is never unloaded, so as to compress the air inside the cylinder, thus increasing its pressure and, therefore, the force against the box, so as to allow the trapped air to escape.
  • the pressure produced is fed back into the machine circuit, producing a boost-pressure throughout the circuit so as to increase the overall performance of all pneumatic actuators.
  • a further advantage is that the system allows the independent adjustment of the pressing height of each head allowing, in turn, to realize boxes with multiple heights independent of the orientation of the sheet on the mat, this is because the high brush is supported by a structure anchored to the base of the head itself, and this allows it to remain at the optimum height (that of the mat) despite the head is free to move vertically.
  • a further advantage is that the system provides a mechanical bond that connects the rotating brushes to the heads and then, in addition to keeping them at the optimum level, allows to control its movement depending on the type of product being processed, so that, for example, by means of appropriate interpolations, countersunk boxes having walls not perpendicular to the base can be realized.
  • a preferred embodiment of a device for applying sheets of pre-glued paper to paper or cardboard boxes is described, in particular a system to allow the application of pre-glued paper to the side or bottom walls of the box, which prevents the formation of air bubbles according to the invention.
  • Figure 3 shows in general the structure of a coating machine provided with a device of the type described later in greater detail, and which includes a base 13 supporting a coating sheet F, supported by a upright 6 and vertically movable between operating heads R provided with brushes that apply the sheet on the walls of the box, and vertical and horizontal blades for folding the edges of the sheet protruding sideways the box.
  • the sheet is rolled up onto the internal walls of the box by means of a counter-mould C moved vertically by an upper shaft A that enters the box S, resting on plane 13, dragging the flaps of the sheet folded inwards by the horizontal folding blades.
  • the device comprise at least one operating unit or head R, preferably at least two, each provided with,
  • the device includes a height-adjustable presser holding head 5 independent of said brush support 7 and of said support 3 for said horizontal strip 14, in order to allow the independent adjustment of the pressing height of the head 5 independent of the height of the rotating brushes 1 and to allow the coating of boxes with multiple heights.
  • the support 7 of the brush 1 is anchored to a base 20 of said presser holding head 5, so that it can remain at an optimum work height and head 5 is free to move vertically independently.
  • the brush 1 can be conveniently carried by a movable arm 15, which in turn is attached to support 3, provided with a movement axis (a) inclined at an angle (alpha), preferably 45°, to the vertical, in order to adapt and press at a favourable angle on the sides of the box S both vertically and horizontally.
  • a movement axis (a) inclined at an angle (alpha), preferably 45°, to the vertical in order to adapt and press at a favourable angle on the sides of the box S both vertically and horizontally.
  • the plate 13 is supported below by a single or multistage telescopic cylinder 6 configured to be against to the counter-mould C in order to allow wrapping sequences suitable for removing the presence of bubbles below the coating paper.
  • the device is provided with several operating units R, each with motors 21 independent of the others, and a control unit 22 for their management.
  • the lack of mechanical connecting elements between presser 4 and strip 14 allows for wrapping sequences to remove the presence of bubbles 10, 12 below the coating paper.
  • the pressing sequence is illustrated in Fig.2a, 2b, 2c and 2d with the subsequent folding of the pre-glued sheet of paper from a flat position to a first adhesion on the walls made by brush 1, and a subsequent folding towards the inside of the box, made by the horizontal blades.
  • Another mechanism to remove air bubbles 10,12 is that of the "under mould” pump 6, single or multistage telescopic cylinder, which is put against to the mould and thrust down by it in its working cycle.
  • valve that controls the air inlet and outlet from the "under mould” pump 6 is never unloaded, so as to compress the air inside the cylinder, thus increasing the pressure and, therefore, the force against the box, so as to allow the trapped air 10,12 to escape.
  • the high brush 1 is supported by a structure anchored to the base of the head itself, so as to allow it to remain at the optimum level, that of the mat, despite the head is free to move vertically.
  • the mechanical constraint that connects the rotating brushes 1 to the heads, in addition to keeping them at the optimum height, allows to control its movement depending on the type of product being processed, so that, for example, by means of appropriate interpolations, countersunk boxes having walls not perpendicular to the base can be realized.
  • the wrapping heads R are moved in an integrated way with the processing process, in order to adapt to the shape and size of the box to be produced.
  • the position of the wrapping heads is continuously recalculated dynamically, in order to be able to make changes in real time of all corrections applied to the on-going processing, i.e., to be able to make precise changes to the theoretically calculated operating parameters.
  • the actuators responsible for the moving axes of the machine during the work process act themselves to adapt in real time the position and movements of the operating heads according to the format of the product to be worked and the working step, thus making any change of format during the same process in progress and moving the work components (such as the moving brushes horizontally and the moving press vertically) in accordance with the new format to be worked and the work step in progress, without interruption and machine downtime.
  • the displacements of the actuators are calculated cycle by cycle to ensure that the machine can adapt in real time to the needs of production, while eliminating machine downtime due to adjustment operations and reducing the waste due to the delay in the correction intervention compared to the identification of the problem.
  • This suction cup activated in an appropriate way during the working cycle, emits an air flow 26 that pretensions the covering paper F in such a way that it perfectly follows the path of the rotating brush 1 (pre-aligned) on the box S, preventing the imperfections of the covering (e.g. bubbles) thanks to the progressive and controlled application of the paper along the walls.
  • the suction cup 25 works without direct contact with the paper and therefore without causing scratches on the coating sheet F itself.
  • the suction cup 25 can be a separable component or a component integral with the operating head.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Making Paper Articles (AREA)

Claims (9)

  1. Dispositif d'application de feuilles (F) de papier pré-collé sur les parois de boîtes (S) en papier ou en carton, comprenant
    - au moins une unité de travail (R) munie,
    d'une brosse rotative (1), supportée par un support de brosse (7) fixe par rapport à la brosse rotative,
    de moyens (2a) et (2b) pour plier les rabats externes verticaux de la feuille dépassant des parois de boîte,
    d'un support (3) pour une bande horizontale (14) pour plier les rabats externes horizontaux,
    d'un presseur (4) mobile horizontalement et configuré pour exercer une pression sur la boîte (S) pour faire adhérer la feuille (F) de papier pré-collée sur les parois de la boîte en papier ou en carton,
    - un arbre porte-moule supérieur (A) mobile verticalement configuré pour insérer un contre-moule (C) dans ladite boîte (S) et pour envelopper les rabats externes de la feuille pliée sur les parois internes de la boîte,
    - une plaque (13) supportant la feuille mobile verticalement pour agir contre le moule (C)
    caractérisé en ce qu'il comprend
    un moteur horizontal (21) du support (7) d'une brosse rotative (1) mobile horizontalement,
    un moyen (22) pour commander le moteur (21),
    une tête (5) de maintien de presseur réglable en hauteur indépendante dudit support de brosse (7) et dudit support (3) de ladite bande horizontale (14), afin de permettre le réglage indépendant de la hauteur de pression de la tête (5) indépendamment de la hauteur de la brosse rotative (1) et de permettre le revêtement de boîtes à plusieurs hauteurs.
  2. Dispositif selon la revendication 1, dans lequel ledit support (3) de la brosse rotative (1) est ancré à une base (20) de ladite tête (5) de maintien de presseur, de manière à pouvoir rester à une hauteur de travail optimale et la tête (5) est libre de se mettre en mouvement verticalement indépendamment.
  3. Dispositif selon la revendication 1 ou 2, comprenant un vérin télescopique à un ou plusieurs étages (6) supportant ladite plaque (13), configuré pour être mis contre le contre-moule (C) afin de permettre à des séquences d'emballage de supprimer la présence de bulles sous le papier d'emballage, ledit vérin (6) n'étant jamais déchargé lorsque le moule descend, de sorte que la pression produite soit réinjectée dans le circuit de machine, produisant une surpression dans tout le circuit pneumatique, afin d'augmenter l'efficacité de tous les actionneurs pneumatiques connectés au circuit.
  4. Dispositif selon l'une quelconque des revendications précédentes, dans lequel ladite brosse rotative (1) est portée par un bras mobile (15) d'un axe (a) incliné d'un angle (α), de préférence 45°, par rapport au plan vertical, afin de presser selon un angle favorable sur les côtés de la boîte (S) à la fois verticalement et horizontalement.
  5. Dispositif selon l'une quelconque des revendications précédentes, comprenant un moteur (21) du support (7) de la brosse rotative (1) et un moyen (22) de commande du moteur (21) configuré pour commander son mouvement en fonction du type de boîte en cours de traitement, afin de couvrir également les boîtes fraisées ou courbées, ayant des parois non perpendiculaires à la base.
  6. Dispositif selon l'une quelconque des revendications précédentes, comprenant une ventouse pneumatique (25) placée dans une position alignée avec la brosse rotative (1) pour émettre un flux d'air (26) qui précontraint le papier de couverture (F) afin qu'il suive la trajectoire de la brosse rotative (1).
  7. Procédé d'application de feuilles (F) de papier pré-collé sur les parois de boîtes (S) en papier ou en carton au moyen d'un dispositif du type comprenant
    au moins une unité de travail (R) munie d'une brosse rotative (1), mobile horizontalement, supportée par un support de brosse (7) fixe par rapport à la brosse rotative (1),
    au moins un presseur (4), mobile horizontalement et verticalement, et configuré pour appliquer une pression sur la boîte (S) pour faire adhérer la feuille de papier (F) pré-collée sur les parois de la boîte en papier ou en carton,
    caractérisé par le fait que le dispositif comprend en outre un moteur horizontal (21) du support (7) d'une brosse rotative (1) mobile horizontalement, et
    un moyen (22) pour commander le moteur (21),
    et par le fait que le mouvement horizontal de la brosse rotative (1) est commandé au moyen d'interpolations, en fonction de la taille de la boîte en cours de traitement, une tête (5) de maintien de presseur réglable en hauteur indépendante dudit support de brosse (7) et dudit support (3) de ladite bande horizontale (14) étant prévue afin de permettre le réglage indépendant de la hauteur de pression de la tête (5) indépendamment de la hauteur de la brosse rotative (1) et de permettre le revêtement de boîtes à plusieurs hauteurs.
  8. Procédé selon la revendication 7, dans lequel la position de la brosse rotative (1) est continuellement recalculée dynamiquement afin d'apporter des modifications précises à des paramètres de fonctionnement théoriquement calculés.
  9. Procédé selon la revendication 7, dans lequel au moins le mouvement horizontal de la brosse rotative (1) et le mouvement vertical du presseur (4) sont commandés indépendamment pour adapter en temps réel la position et les mouvements de la brosse rotative et du presseur en fonction de la taille du produit à traiter, durant un même processus en cours de réalisation, selon un nouveau format à traiter, de manière à opérer chaque modification de format, sans interruption ni temps d'arrêt machine.
EP18730850.7A 2017-05-08 2018-05-08 Dispositif d'application de feuilles de papier pré-collées sur des boîtes en papier ou en carton Active EP3621884B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT102017000049325A IT201700049325A1 (it) 2017-05-08 2017-05-08 Dispositivo per l'applicazione di fogli di carta preincollata a scatole di carta o cartone.
PCT/IB2018/053184 WO2018207089A1 (fr) 2017-05-08 2018-05-08 Dispositif d'application de feuilles de papier pré-collées sur des boîtes en papier ou en carton

Publications (3)

Publication Number Publication Date
EP3621884A1 EP3621884A1 (fr) 2020-03-18
EP3621884C0 EP3621884C0 (fr) 2023-08-30
EP3621884B1 true EP3621884B1 (fr) 2023-08-30

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EP18730850.7A Active EP3621884B1 (fr) 2017-05-08 2018-05-08 Dispositif d'application de feuilles de papier pré-collées sur des boîtes en papier ou en carton

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EP (1) EP3621884B1 (fr)
IT (1) IT201700049325A1 (fr)
WO (1) WO2018207089A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109318533B (zh) * 2018-11-27 2024-02-27 广东高义包装科技股份有限公司 一种礼盒自动贴内连接纸装置
CN112677561A (zh) * 2020-12-01 2021-04-20 周春龙 酒盒压泡机构及压泡方法
CN113459589B (zh) * 2021-07-21 2022-12-06 哈尔滨和鑫彩色印刷有限公司 一种包装纸箱制作加工方法
CN114379873A (zh) * 2022-03-02 2022-04-22 上海微松工业自动化有限公司 一种芯片料盘包装用泡棉折叠包装机构

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITBO20040408A1 (it) * 2004-06-29 2004-09-29 Emmeci S R L Rivestitrice per scatole da imballaggio
ES1060860Y (es) * 2005-07-29 2006-03-01 Olmos Telesforo Gonzalez Dispositivo de prensado de orejetas o solapas de cajas de carton.
ITBO20110770A1 (it) * 2011-12-29 2013-06-30 Emmeci Spa Procedimento ed apparato per rivestire una scatola

Also Published As

Publication number Publication date
EP3621884A1 (fr) 2020-03-18
EP3621884C0 (fr) 2023-08-30
IT201700049325A1 (it) 2018-11-08
WO2018207089A1 (fr) 2018-11-15

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