EP0618066A1 - Machine for wrapping and folding over edges for box making - Google Patents

Machine for wrapping and folding over edges for box making Download PDF

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Publication number
EP0618066A1
EP0618066A1 EP94830133A EP94830133A EP0618066A1 EP 0618066 A1 EP0618066 A1 EP 0618066A1 EP 94830133 A EP94830133 A EP 94830133A EP 94830133 A EP94830133 A EP 94830133A EP 0618066 A1 EP0618066 A1 EP 0618066A1
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EP
European Patent Office
Prior art keywords
box
rod
coating
controlled
type
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Granted
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EP94830133A
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German (de)
French (fr)
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EP0618066B1 (en
Inventor
Renzo Santini
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Individual
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Individual
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    • 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
    • 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
    • B31B50/81—Forming or attaching accessories, e.g. opening devices, closures or tear strings
    • 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
    • B31B2110/00—Shape of rigid or semi-rigid containers
    • B31B2110/30—Shape of rigid or semi-rigid containers having a polygonal cross section
    • B31B2110/35—Shape of rigid or semi-rigid containers having a polygonal cross section rectangular, e.g. square
    • 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
    • B31B2120/501—Construction of rigid or semi-rigid containers covered or externally reinforced by applying wrapping material only on the side wall part of a box
    • 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
    • B31B50/006—Controlling; Regulating; Measuring; Improving safety
    • 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

Definitions

  • the present invention relates to a coating and rebound machine for box factories.
  • coating and rebinding machines are used in box factories to coat the outer walls of cardboard boxes with a sheet of paper or fabric, which is conveniently shaped in relation to the shape and dimensions of the box at by means of a cutting machine and, successively, coated with glue on the inside page by means of a gluing machine.
  • the mold rod, the lateral operating heads and the other operating organs are moved by means of a centralized system with levers and cams kinematically controlled by a single motor unit. But this involves the impossibility of varying the modalities, that is to say the race and the times, of intervention of the mold rod, of the lateral operating heads, as well as of the other organs mentioned above, c 'is to say in relation to the kind of boxes and relative sheets of coating, so q'une machine is able to provide a single type of production.
  • the main purpose of the present invention is that of proposing a machine for coating and rimming for box factories, the operating organs of which are slaved to a movement system which makes it possible to program and manage the modalities of it automatically. intervention, in relation to the type of production from time to time you want to execute.
  • the advantages derived from the present invention essentially consist in the fact that it is possible to regulate and control independently, that is to say separately, the positioning of the mold rod and of the lateral operating heads, in the operational position. , as thus the respective intervention times, in relation to the type of production from one time to the next, to execute, and this while keeping the mechanical components of the machine unaltered, only and simply according to program so as to achieve , with the same machine, a wide range of products of even very different shape and dimensions, such as for example coated shoe boxes, for manufactured textiles, cutlery, jewelry, and various kinds of products; that it is possible to execute the correct and precise coating of the cardboard boxes regardless of the appropriate format, that is to say whatever the height of the respective side walls, which, in the case of boxes with rectangular plan , it is possible to rebound the coating in whole or in part on the inner walls of the front box on the two long sides of the latter and successively on the short ones, which makes it easier to fold the coating paper in correspondence of the edges of the box, so as to avoid possible local imperfections of the
  • FIG. 1 shows the front view of a machine for coating and rebounding according to the invention
  • FIG. 2 shows the side view of the machine of FIG. 1
  • FIG. 3 shows the plan view of the machine of FIG. 1
  • FIG. 4 represents a block diagram of the command and control system of the operational means of the machine of FIG. 1.
  • said means for movement of the mold rod (7), said means of movement of the lateral operating heads (T), and said means (C) for supplying the boxes to be coated and for discharging them once coated are controlled by a central microprocessor unit (E), programmable, so as to consent thereto activation and control separately, that is to say according to several corresponding independent activation and control lines (L1, L2; L3), thus allowing independent regulation, according to the program, of the respective modalities of intervention, in relation to the type of production to be executed.
  • E central microprocessor unit
  • the movement of the mold rod (7) is carried out by means of a first electric motor (M1) of the brushless type with electronic control, which is associated with a corresponding absolute differential encoder (E1) and it is provided with a tachometric dynamo (D1) for controlling the position of the respective axis: said motor (M1) being controlled by the computer (E) and connected to the mold holder rod (7) by means of a belt drive (22), so as to achieve the precise movement of the rod (7), even of the intermittent type, with programmed control, in relation to the type of box and the relative coating sheet.
  • M1 electric motor
  • E1 absolute differential encoder
  • D1 tachometric dynamo
  • the movement of the four lateral operating heads (T) is carried out by means of several independent actuating cylinders (CT), conveniently synchronized with the engine (M1) of the rod (7), and which are slaved to said computer (E), so as to consent to the correct intervention in programmed sequence of the four lateral operating heads (T) in the active phases of coating the outer walls of the box and of the edges of the coating on the edges of the interior walls thereof.
  • CT independent actuating cylinders
  • said means (C) comprise a second motor (M2) of the brushless type with electronic control which is associated with a corresponding absolute differential encoder (E2) and it is provided with a tachometric dynamo (D2) for controlling the position of the respective axis: said motor (M2) being controlled by the computer (E), so as to agree to the correct and precise movement of the arms (3), according to the program, in relation to the type of production to be executed. All this allows the correct automatic application of the coating on boxes of any type, simply varying, depending on the program, the strokes and the activation times of the rod (7) and the operating heads (T9).
  • said cylinders (CT) are of the electromagnetic activation type.
  • said means for extracting the box terminated by the overform (15) comprise several vertical rods (21) slaved, on command, to an alternating vertical movement from and to the box, by means of a corresponding actuator cylinder or of an electronic motor, to simplify not shown in the figures of the appended drawings, linked to the computer.
  • the operation of the machine described, once predisposed according to the program the strokes and the intervention times of the rod (7), the charger (C) and the heads (T) in relation to the type of boxes to be coated and of the coating used, is as follows.
  • the coupled box-coating is fed by a belt (1), on which, previously, a separate machine thus called “stapler” has already predisposed the box in a pre-established position on the pre-glued sheet of the coating.
  • stapleler a separate machine thus called "stapler”
  • the movement of the belt (1) is interrupted, to allow the intervention of the two mechanical arms (3) which hang the coupling and the transfer to the central position underlying the mold (4), controlled by the computer (E).
  • the operating heads (T) conveniently predisposed in the working position required by the type of production to be executed, begins the phase of application of the coating sheet on the side walls of the box. More precisely, during the programmed descent of the same rod (7), by means of the motor (M1) controlled by the computer (E), first the mold (4) is introduced into the box and then, with the subsequent programmed descent of the same rod (7), the box is intercepted by the brushes (8) and (9), which act so as to allow the coating to adhere to the longer side walls of the moving box.
  • the box is placed in correspondence with the brushes (10) which, with the rod (7) stopped in the position thus reached, execute the folding of the corresponding edge of the coating before the brushes (11) and (12) provide for the application of the coating of the box, according to a technique in itself already known to those skilled in the art.
  • the rod (7) is later lowered, at the command of the computer (E), to allow the intervention of four spatulas (13,14), which can fold the remaining portion at 90 ° from the coating towards the inside of the box, after which, always at the control of the computer (E), the actuated overform (15) which drags the portion of the covering thus folded inside the box.

Abstract

Machine for wrapping and folding over edges for box making, comprising means for individually wrapping cardboard boxes with a covering sheet made from paper or from fabric and for folding over the free edges of the covering sheet totally or partially on the corresponding inner walls of the box, or the said covering and folding-over means are slaved to a programmable central unit with microprocessors (E) so as to permit automatic management and adjustment, according to the program, of intervention modes, in relation to the type of production it is desired to carry out from one stage to the next. <IMAGE>

Description

La présente invention concerne une machine à revêtir et reborder pour fabriques de boïtes.The present invention relates to a coating and rebound machine for box factories.

Il est connu que les machines à revêtir et reborder sont imployées dans les fabriques pour boïtes pour revêtir les parois extérieures des boïtes en carton avec une feuille en papier ou tissu, laquelle est opportunement façonnée en relation à la forme et aux dimensions de la boïte au moyen d'une découpeuse et, successivament, enduite de colle sur la page intérieure au moyen d'une machine colleuse.It is known that coating and rebinding machines are used in box factories to coat the outer walls of cardboard boxes with a sheet of paper or fabric, which is conveniently shaped in relation to the shape and dimensions of the box at by means of a cutting machine and, successively, coated with glue on the inside page by means of a gluing machine.

Il est aussi connu que l'application de la feuille de revêtement sur les parois extérieures de la boïte et le successif rebordage des bords libres du papier en partie ou en tout sur les correspondentes parois intérieures de la boite déjà façonnée, sont exécutés en utilisant une moule à course libre verticale, laquelle est reliée à l'extrémité inferieure d'une tige verticale, et deux paires opposées de têtes operatrices latérales, lesquelles supportent une pluralité de brosses affectées à compresser le revêtement sur les parois extérieures de la boïte, par effet d'un mouvement relatif entre la boïte, qui est mouvementée par la tige portemoule, et les mêmes brosses.
Ledit rebordage est affectué au moyen d'un élément ainsi dit "surforme", à course verticale, lequel, en position operationelle, effectu le trainage des bords supérieurs libres du revêtement sur les correspondants rebords des parois intérieures de la boïte. Dans les machines à aujourd'hui connues, la tige portemoule, les têtes operatrices latérales et les autres organes operateurs sont mouvementés au moyen d'en système centralisé à leviers et cammes cinématiquement asservit à une seule unité motrice. Mais ce-ci comporte l'impossibilité de varier les modalités, c'est-à-dire la course et les temps, d'intervention de la tige portemoule, des tétes operatrices latérales, ainsi que des autres organes mentionnés ci-dessus, c'est-à-dire en rapport au genre des boïtes et des relatives feuilles de revêtement, ainsi q'une même machine est en état de pourvoir à un seul type de production.It is also known that the application of the covering sheet on the outer walls of the box and the successive rimming of the free edges of the paper in part or in whole on the corresponding inner walls of the already shaped box, are carried out using a vertical free-running mold, which is connected to the lower end of a vertical rod, and two opposite pairs of lateral operating heads, which support a plurality of brushes assigned to compress the coating on the outer walls of the box, by effect of a relative movement between the box, which is moved by the mold holder rod, and the same brushes.
Said flange is affected by means of a so-called "overform" element, with vertical travel, which, in the operational position, carries out the dragging of the free upper edges of the coating on the corresponding edges of the interior walls of the box. In today's machines, the mold rod, the lateral operating heads and the other operating organs are moved by means of a centralized system with levers and cams kinematically controlled by a single motor unit. But this involves the impossibility of varying the modalities, that is to say the race and the times, of intervention of the mold rod, of the lateral operating heads, as well as of the other organs mentioned above, c 'is to say in relation to the kind of boxes and relative sheets of coating, so q'une machine is able to provide a single type of production.

Le but principale de la presente invention est celui de proposer une machine à revêtir et reborder pour fabriques de boïtes, dont les organes operateurs soient asservis à un système de mouvement qui permet d'en programmer et d'en gérer en automatique les modalités d'intervention, en relation au type de production d'une fois à l'autre volu exécuter.The main purpose of the present invention is that of proposing a machine for coating and rimming for box factories, the operating organs of which are slaved to a movement system which makes it possible to program and manage the modalities of it automatically. intervention, in relation to the type of production from time to time you want to execute.

A ce resultat on est parvenu, en conformité de l'invention, en adoptant l'idée de réaliser une machine comprenante une moule supportée d'une tige à course verticale pour disposer la boïte à revêtir, avec la resctive feuille de revêtement, en correspondance des moyens d'application du revêtement à la boïte, deux paires opposées de têtes operatrices latérales pour la pressage du papier de revêtement sur les parois extérieures de la boïte, moyens pour le rebordage des bord libres du papier en partie ou en tout sur les correspondantes parois intérieures de la boïte, moyens pour mouvementer ladite boïte, moyens pour mouvementer lesdites têtes operatrices latérales, et moyens pour alimenter les boïtes à revêtir et pour les decharger une fois revêties, sont asservis à une unité centrale à micro-processeurs, programmable, de façon à en consentir l'activation et le contrôle separement, c'est-à-dire selon plusieures correspondantes lignes d'activation et contrôle indipendents, ainsi de permettre la regulation indipendente, selon le programme, des respectives modalités d'intervention, en rapport au type de production que d'une fois à l'autre on veut exécuter.This result has been achieved, in accordance with the invention, by adopting the idea of making a machine comprising a mold supported by a rod with vertical travel to arrange the box to be coated, with the resctive coating sheet, in correspondence means for applying the coating to the box, two opposite pairs of lateral operating heads for pressing the covering paper on the outer walls of the box, means for rimming the free edges of the paper in part or in whole on the corresponding inner walls of the box, means for moving said box, means for moving said lateral operating heads, and means to supply the boxes to be coated and to unload them once coated, are slaved to a central unit with microprocessors, programmable, so as to allow activation and control separately, that is to say according to several corresponding independent activation and control lines, thus allowing independent regulation, according to the program, of the respective intervention methods, in relation to the type of production that from one time to another we want to execute.

Les avantages que derivent de la presente invention consistent essentiellement en ce-qu'il est possible régler et contrôler de manière indipendente, c'est-à-dire séparement, le positionnement de la tige portemoule et des têtes operatrices latérales, dans la position operationelle, comme ainsi les respectifs temps d'intervention, en relation au type de production d'une fois à l'autre volue exécuter, et ceci en tenant inaltérés les composants mécaniques de la machine, uniquement et simplememnt d'après programme de façon à réaliser, avec une même machine, une ample gamme de produits de forme et dimensions même très differentes, comme par exemple boïtes revêties pour chaussures, pour produits manufacturés textiles, pour coutellerie, pour joaillerie, et étuix de differene genre; qu'il est possible exécuter le correct et precis revêtement des boïtes en carton peu importe le format approprié, c'est-à-dire quelle qu'elle soit la hauteur des respectives parois latérales, qui, dans le cas des boïtes à plan rectangulaire, est possible faire le rebordage du revêtement en tout ou en partie sur les parois intérieures de la boite avant sur les deux cotés longs de celle-ci et successivament sur les courts, ce qu'il permet de faciliter le pliage du papier de revêtement en cerrespondance des arêts de la boïte, de façon à éviter possibles imperfections locales du produit manufacturé; qu'il est possible appliquer les bords du revêtement sur les arêts verticales émergentes des extrémités des cotés longs de la boïte ou, respectivement, des courts, simplement en variant la programmation électronique de commande; qu'il est possible de régler comme en veut les temps et les courses d'intervention des moyens d'éxtraction de la moule des boïtes finies en rapport au type de production d'une fois à l'autre volue exécuter; qu'il est possible accroitre la frequence de l'alimentation des boïtes à revêtir, en phase avec les organes operationels de la machine et en relation au format des boïtes, en tenant inalterés ses composants mécaniques, uniquement et simplement d'après le programme; qu'il est possible réduire les chocs entre les parties en mouvement relatif dûs aux forces inertielles agissantes soit dans la tige portemoule que dans les quatre têtes operatrices latérales; que resultent diminués les jeux et les vibrations, au profit de la fiabilité globale de la machine.The advantages derived from the present invention essentially consist in the fact that it is possible to regulate and control independently, that is to say separately, the positioning of the mold rod and of the lateral operating heads, in the operational position. , as thus the respective intervention times, in relation to the type of production from one time to the next, to execute, and this while keeping the mechanical components of the machine unaltered, only and simply according to program so as to achieve , with the same machine, a wide range of products of even very different shape and dimensions, such as for example coated shoe boxes, for manufactured textiles, cutlery, jewelry, and various kinds of products; that it is possible to execute the correct and precise coating of the cardboard boxes regardless of the appropriate format, that is to say whatever the height of the respective side walls, which, in the case of boxes with rectangular plan , it is possible to rebound the coating in whole or in part on the inner walls of the front box on the two long sides of the latter and successively on the short ones, which makes it easier to fold the coating paper in correspondence of the edges of the box, so as to avoid possible local imperfections of the manufactured product; that it is possible to apply the edges of the coating on the vertical edges emerging from the ends of the long sides of the box or, respectively, of the short ones, simply by varying the electronic control programming; that it is possible to adjust as desired the times and the intervention races of the means of extracting the mold from the finished boxes in relation to the type of production from one time to the next, to be executed; that it is possible to increase the frequency of the feeding of the boxes to be coated, in phase with the operational parts of the machine and in relation to the format of the boxes, keeping its mechanical components unaltered, solely and simply according to the program; that it is possible to reduce the shocks between the parts in relative movement due to the inertial forces acting either in the mold holder rod than in the four heads lateral operators; that results in less play and vibrations, to the benefit of the overall reliability of the machine.

Ces avantages et caractéristiques de l'invention ainsi que d'autres seront plus et mieux compris de chaque homme du métier à la lumière de la description qui va suivre et à l'aide des dessins annexés, donnés à titre d'esemplification pratique de l'invention, mais à ne pas considérer dans le sens limitatif; dessins sur lesquels: la FIG. 1 représente la vue de face d'une machine à revêtir et reborder conformément à l'invention; la FIG. 2 représente la vue latérale de la machine de la FIG. 1; la FIG. 3 représente la vue en plan de la machine de la FIG. 1; la FIG. 4 représente un bloc-diagramme du système de commande et contrôle des moyens operationels de la machine de la FIG. 1.These advantages and characteristics of the invention as well as others will be more and better understood by each person skilled in the art in the light of the description which follows and with the aid of the appended drawings, given by way of practical exemplification of the invention. invention, but not to be considered in the limiting sense; drawings in which: FIG. 1 shows the front view of a machine for coating and rebounding according to the invention; FIG. 2 shows the side view of the machine of FIG. 1; FIG. 3 shows the plan view of the machine of FIG. 1; FIG. 4 represents a block diagram of the command and control system of the operational means of the machine of FIG. 1.

Réduite à sa structure essentielle et en référence aux figures des dessins annexés, une machine à revêtir et reborder pour fabriques de boïtes conformément à l'invention comprend:

  • une moule (4) horizontale, laquelle est reliée à l'extrémité libre d'une tige (7) à course verticale, pour disposer la boite à revêtir, avec la respective feuille de revêtement, en correspondance des moyens à brosse (8,9,10,11,12) destinés à appliquer le revêtement à la boite par effect d'un mouvement relatif entre la boïte avec la relative feuille de revêtement et le mêmes brosses (8,9,10,11,12);
  • deux paires opposées de têtes operatrices latérales (T) en support à lesdites brosses (8,9,10,11,12), lesquelles sont disposées en position sousjacente à ladite tige (7) et sont asservies, à commande à un mouvement horizontal alternatif de et vers l'axe de la même tige (7), pour consentir la pressage du papier de revêtememnt sur les parois extérieures de la boïte;
  • un élément surforme (15) asservi, à commande, à un mouvement vertical alternatif de et vers la zone d'intervention desdites têtes operatrices latérales (T), lequel est situé en position au-dessus de ladite moule (4), pour permettre le rebordement des bordes libres de la feuille de revêtement en tout ou en partie sur les correspondentes parois intérieures de la boïte, après l'introduction de la même surforme (15) à l'intérieur de la boïte, avec les bordas du revêtement qu'il faut reborder opportunement replier à 90° vers l'intérieur de la boïte;
  • des moyens (21) pour éloigner la boïte revêtie par la surforme (15);
  • des moyens pour le mouvement desdites têtes operatrices latérales (T); et
  • des moyens (C) avec deux bras mécaniques (3) asservis, à commande, à un mouvement horizontal alternatif de et vers la zone d'intervention desdites têtes operatrices latérales (T), pour alimenter les boïtes à revêtir et respectivement les décharger une fois revêties.
Reduced to its essential structure and with reference to the figures of the appended drawings, a coating and rimming machine for box factories in accordance with the invention comprises:
  • a horizontal mold (4), which is connected to the free end of a rod (7) with vertical travel, to arrange the box to be coated, with the respective coating sheet, in correspondence with the brush means (8, 9 , 10,11,12) intended to apply the coating to the box by effect of a relative movement between the box with the relative sheet of coating and the same brushes (8,9,10,11,12);
  • two opposite pairs of lateral operating heads (T) in support of said brushes (8,9,10,11,12), which are arranged in position adjacent to said rod (7) and are slaved, controlled by reciprocating horizontal movement from and towards the axis of the same rod (7), to allow the pressing of the coating paper on the outer walls of the box;
  • an overformed element (15) slaved, with control, to a reciprocating vertical movement of and towards the intervention zone of said lateral operating heads (T), which is located in position above said mold (4), to allow the rim of the free edges of the covering sheet in whole or in part on the corresponding inner walls of the box, after the introduction of the same overform (15) inside the box, with the bordas of the covering that it must be folded up conveniently fold back 90 ° towards the inside of the box;
  • means (21) for moving the box coated with the overform (15) away;
  • means for the movement of said lateral operating heads (T); and
  • means (C) with two mechanical arms (3) slaved, with control, to an alternating horizontal movement from and towards the intervention zone of said lateral operating heads (T), for supplying the boxes to be coated and respectively discharging them once coated.

En conformité de l'invention, lesdits moyens de mouvement de la tige portemoule (7), lesdits moyens de mouvement des têtes operatrices latérales (T), et lesdits moyens (C) pour alimenter les boïtes à revêtir et pour les décharger une fois revêties, sont asservis à une unité centrale à microprocesseurs (E), programmable, de manière à en consentir l'activation et le contrôle séparement, c'est-à-dire selon plusieures correspondentes lignes d'activation et contrôle indépendantes (L1, L2; L3), ainsi de permettre la régulation indépendante, d'après le programme, des respectives modalités d'intervention, en relation au type de production à exécuter.In accordance with the invention, said means for movement of the mold rod (7), said means of movement of the lateral operating heads (T), and said means (C) for supplying the boxes to be coated and for discharging them once coated, are controlled by a central microprocessor unit (E), programmable, so as to consent thereto activation and control separately, that is to say according to several corresponding independent activation and control lines (L1, L2; L3), thus allowing independent regulation, according to the program, of the respective modalities of intervention, in relation to the type of production to be executed.

Avantageusement, le mouvement de la tige portemoule (7) est realisé au moyen d'un premiér moteur électrique (M1) du type Brushless à commande électronique, lequel est associé à un correspondant encoder différentiel absolu (E1) et il est pourvu d'un dynamo tachymétrique (D1) pour le contrôle de la position du respectif axe: ledit moteur (M1) étant asservi à l'ordinateur (E) et relié à la tige portemoule (7) au moyen d'une transmission à courroi(22), de manière à réaliser le precis mouvement de la tige (7), même de type intermittant, à commande programmée, en relation au type de boïte et de la relative feuille de revêtement.Advantageously, the movement of the mold rod (7) is carried out by means of a first electric motor (M1) of the brushless type with electronic control, which is associated with a corresponding absolute differential encoder (E1) and it is provided with a tachometric dynamo (D1) for controlling the position of the respective axis: said motor (M1) being controlled by the computer (E) and connected to the mold holder rod (7) by means of a belt drive (22), so as to achieve the precise movement of the rod (7), even of the intermittent type, with programmed control, in relation to the type of box and the relative coating sheet.

Avantageusement, le mouvement des quatre têtes operatrices latérales (T) est realisé au moyen de plusieurs cylindres actionneurs indépendant (CT), opportunement syncronisés avec le moteur (M1) de la tige (7), et lesquels sont asservis audit ordinateur (E), de facçon à en consentir la correcte intervention en sequence programmée des quatre têtes operatrices latérales (T) dans les phases actives du revêtement des parois extérieures de la boïte et de rebordage des bords du revêtement sur les bords des parois intérieures de celle-ci.Advantageously, the movement of the four lateral operating heads (T) is carried out by means of several independent actuating cylinders (CT), conveniently synchronized with the engine (M1) of the rod (7), and which are slaved to said computer (E), so as to consent to the correct intervention in programmed sequence of the four lateral operating heads (T) in the active phases of coating the outer walls of the box and of the edges of the coating on the edges of the interior walls thereof.

Avantageusement, lesdits moyens (C) comprennent un deuxième moteur (M2) du type Brushless à commande électronique lequel est associé à un correspondant encoder différentiel absolu (E2) et il est pourvu d'une dynamo tachymètrique (D2) pour le contrôle de position du respectif axe: ledit moteur (M2) en étant asservi à l'ordinateur (E), de façon à consentir le correct et precis mouvement des bras (3), d'après le programme, en relation au type de production à exécuter.
Tout ceci permet la correcte application automatique du revêtement sur boïtes de n'importe quel type, en variant simplement, d'après le programme, les courses et les temps d'activation de la tige (7) et des têtes operatrices (T9).
De preference, lesdits cylindres (CT) sont du type à activation électromagnétique.Advantageously, said means (C) comprise a second motor (M2) of the brushless type with electronic control which is associated with a corresponding absolute differential encoder (E2) and it is provided with a tachometric dynamo (D2) for controlling the position of the respective axis: said motor (M2) being controlled by the computer (E), so as to agree to the correct and precise movement of the arms (3), according to the program, in relation to the type of production to be executed.
All this allows the correct automatic application of the coating on boxes of any type, simply varying, depending on the program, the strokes and the activation times of the rod (7) and the operating heads (T9).
Preferably, said cylinders (CT) are of the electromagnetic activation type.

Avantageusement, en conformité de l'invention, il est prevu de mouvementer la ci-dessus surforme (15) avec un correspondant cylindre actionneur à course verticale, ou autrement avec un correspondant moteur à commande électronique, asservi à l'ordinateur (E) pour simplifier ne pas repprésentés dans les figures des dessins annexés, de façon à consentir de varier à plaisir, d'après le programme, la respective course operatrice dans la phase de rebordememnt des bords de la feuille de revêtement des correspondentes parois intérieures de la boïte, en relation à la hauteur choisie ou à la profondeur du rebordement.Advantageously, in accordance with the invention, it is planned to move the above overform (15) with a corresponding actuating cylinder with vertical stroke, or otherwise with a corresponding motor with electronic control, controlled by the computer (E) for simplify don't represented in the figures of the appended drawings, so as to agree to vary with pleasure, according to the program, the respective operating stroke in the phase of rimming of the edges of the covering sheet of the corresponding inner walls of the box, in relation to the chosen height or the depth of the ledge.

Avantageusement, en conformité de l'invention, lesdits moyens pour l'extraction de la boïte terminée par la surforme (15) comprennent plusieures tiges verticales (21) asservies, à commande, à un mouvement vertical alternatif de et vers la boïte, au moyen d'un correspondant cylindre actionneur ou d'un moteur électronique, pour simplifier ne pas representés dans le figures des dessins annexés, liés à l'ordinateur.Advantageously, in accordance with the invention, said means for extracting the box terminated by the overform (15) comprise several vertical rods (21) slaved, on command, to an alternating vertical movement from and to the box, by means of a corresponding actuator cylinder or of an electronic motor, to simplify not shown in the figures of the appended drawings, linked to the computer.

Le fonctionnement de la machine décrite, une fois predisposés d'après le programme les courses et les temps d'intervention de la tige (7), du chargeur (C) et des têtes (T) en relation au type des boïtes à revêtir et du revêtement employé, est le suivant. Le couplé boïte-revêtement est alimenté par un tapis (1), sur lequel, précédament, une distincte machine ainsi dite "agraffeuse" a déjà predisposé la boïte en position préétablie sur la feuille pre-collée du revêtement. En correspondance d'un élément d'arrêt (2) des moyens de chargement (C) du couplé, le mouvement du tapis (1) vient interrompu, pour consentir l'intervention des deux bras mécaniques (3) lesquels accrochent le couplé et le tranferent en position centrale sousjacente la moule (4), à commande de l'ordinateur (E). Donc, au moyen des têtes operatrices (T), opportunément prédisposées dans la position de travail requise par le type de production à exécuter, commence la phase d'application de la feuille de revêtement sur les parois latérales de la boïte. Plus précisément, pendant la descente programmée de la même tige (7), au moyen du moteur (M1) commandé par l'ordinateur (E), d'abord la moule (4) vient introduite dans la boïte et ensuite, avec l'ultérieure descente programmée de la même tige (7), la boïte est interceptée oar les brosses (8) et (9), lesquelles agissent en manière de permettre au revêtement de adhèrer sur les parois latérales plus longues de la boïte en mouvement.
Successivament, avec l'ultériore descente programmée de la tige (7) avec la moule (4) la boïte est placée en correspondance des brosses (10) lesquelles, avec la tige (7) arretée dans la position ainsi atteinte, éxecutent le pliage du correspondant bord du revêtement avant que les brosses (11) et (12) pourvoient à l'application du revêtemen de la boite, suivant une téchinique en soi déjà connue aux homme de metier. A la fin de cette phase, la tige (7) est ultérieurement baissée, à commande de l'ordinateur (E), pour permettre l'intervention de quatre spatules (13,14), lesquelle pourvoient à plier à 90° la restante portion du revêtement vers l'intérieur de la boïte, après quoi, toujours à commande de l'ordinateur (E), viens actionée la surforme (15), laquelle traine la portion du revêtement ainsi pliée à l'intérieur de la boïte. A ce point, advient le pressage véritable du revêtement contre les parois de la boïte, au moyen de aptes éléments façonnés (16) supportés par les têtes operatrices (T), en soi connus, à commande de l'ordinateur (E). Au terme de cette operation, vient inversé le mouvement de la tige (7), par l'action d'un ressort hélycoïdal à axe vertical (19) coaxial à la même tige (7), de façon à transferir la boïte maintenant supportée par le surforme (15), avec le revêtement ainsi appliqué, dans la position initiale de chargement, pour en consentir l'extraction au moyen des tiges (21). Terminée la phase d'extraction de la boïte finie, le même système de chargement pourvoit à son expulsion de la machine et charge la successive boïte à revêtir. Le definitif éloignement du produit manufacturé fini de la machine est realisé au moyen d'un distinct système de bandes transporteuses.The operation of the machine described, once predisposed according to the program the strokes and the intervention times of the rod (7), the charger (C) and the heads (T) in relation to the type of boxes to be coated and of the coating used, is as follows. The coupled box-coating is fed by a belt (1), on which, previously, a separate machine thus called "stapler" has already predisposed the box in a pre-established position on the pre-glued sheet of the coating. In correspondence with a stop element (2) of the loading means (C) of the coupling, the movement of the belt (1) is interrupted, to allow the intervention of the two mechanical arms (3) which hang the coupling and the transfer to the central position underlying the mold (4), controlled by the computer (E). Therefore, by means of the operating heads (T), conveniently predisposed in the working position required by the type of production to be executed, begins the phase of application of the coating sheet on the side walls of the box. More precisely, during the programmed descent of the same rod (7), by means of the motor (M1) controlled by the computer (E), first the mold (4) is introduced into the box and then, with the subsequent programmed descent of the same rod (7), the box is intercepted by the brushes (8) and (9), which act so as to allow the coating to adhere to the longer side walls of the moving box.
Successively, with the ulterior programmed descent of the rod (7) with the mold (4) the box is placed in correspondence with the brushes (10) which, with the rod (7) stopped in the position thus reached, execute the folding of the corresponding edge of the coating before the brushes (11) and (12) provide for the application of the coating of the box, according to a technique in itself already known to those skilled in the art. At the end of this phase, the rod (7) is later lowered, at the command of the computer (E), to allow the intervention of four spatulas (13,14), which can fold the remaining portion at 90 ° from the coating towards the inside of the box, after which, always at the control of the computer (E), the actuated overform (15) which drags the portion of the covering thus folded inside the box. At this point, the real pressing of the coating takes place against the walls of the box, by means of suitable shaped elements (16) supported by the operating heads (T), known per se, controlled by the computer (E). At the end of this operation, the movement of the rod (7) is reversed, by the action of a helical spring with vertical axis (19) coaxial with the same rod (7), so as to transfer the box now supported by the overform (15), with the coating thus applied, in the initial loading position, to allow its extraction by means of the rods (21). Finished the extraction phase of the finished box, the same loading system provides for its expulsion from the machine and loads the successive box to be coated. The final removal of the finished manufactured product from the machine is achieved by means of a separate system of conveyor belts.

Claims (7)

1) Machine à revêtir et reborder pour fabriques de boïtes, comprenante:- une moule (4) horizontale, la quelle est liée à l'extrémité libre d'une tige (7) à course verticale, pour disposer la boïte à revêtir, avec le respective feuille de revêtement, en corrispondence de moyens à brosse (8, 9, 10, 11, 12) destinés à appliquer le revêtement à la boïte par effect du mouvement relatif entre la boîte avec la relative feuille de revêtement et les mêmes brosses (8, 9, 10, 11, 12); - plusieurs têtes operatrices latérales (T) de support desdites brosses (8, 9, 10, 11, 12), lesquelles sont disposées en position sousjacente à ladite tige (87) et sont asserviées, a commande, à un mouvement horizontale alternatif de et vers l'axe de la même tige (7) pour consentir le pressage de la feuille de revêtement sur les parois extérieures de la boïte; - un élément surforme (15) asservi, a commande, à un mouvement vertical alternatif de et vers la zone d'intervention desdites têtes operatrices latérales (T), lequel est situé au-dessus à ladite moule (4), pour consentir le rebordement des bords libres du revêtement en tout ou en partie sur les correspondentes parois intérieurs de la boïte, avec préalable introduction du même surforme (15) à l'intérieur de la boïte, avec les bords du revêtement à reborder opportunement repliés à 90° vers l'intérieur de la boïte: - des moyens (21) pour eloigner la boïte revêtue par la surforme (15); - des moyens por mouvementer ladite tige portemoule (7); - des moyens (C) avec deux bras mécaniques (3) asservis, à commande, à un mouvement horizontale alternatif de et vers la zone d'intervention desdites têtes operatrices (T), pour alimenter les boïtes à revêtir et respectivement les decharger une fois reveties; caracterisée en ce que lesdits moyens pour mouvementer la tige portemoule (7), lesdits moyens de mouvement desdites têtes operatrices latérales (7), et lesdits moyens (C) pour alimenter les boïtes à revêtir et pour les decharger une fois revêties, sont asservis à une unité centrale à micro-processeurs (E), programmable, de manière à en consentir l'activation et le contrôle séparément, c'est-à-dire selon plusieures correspondantes lignes d'activation et contrôle indipendentes (L1,L2,L3), ainsi de permettre la régulation independante, d'après le programme, des respectives modalités d'intervention, en rélation au type de production à exécuter. 1) Coating and rimming machine for box factories, comprising: - a horizontal mold (4), which is linked to the free end of a rod (7) with vertical stroke, to arrange the box to be coated, with the respective coating sheet, in correspondence with brush means (8, 9, 10, 11, 12) intended to apply the coating to the box by effect of the relative movement between the box with the relative coating sheet and the same brushes ( 8, 9, 10, 11, 12); - Several lateral operating heads (T) for supporting said brushes (8, 9, 10, 11, 12), which are arranged in a position adjacent to said rod (87) and are controlled, on command, by an alternating horizontal movement of and towards the axis of the same rod (7) to allow the pressing of the coating sheet on the outer walls of the box; - an overformed element (15) controlled, on command, by a reciprocating vertical movement from and to the intervention zone of said lateral operating heads (T), which is located above said mold (4), in order to allow the flange free edges of the covering in whole or in part on the corresponding inner walls of the box, with the prior introduction of the same overform (15) inside the box, with the edges of the covering to be rim conveniently folded 90 ° towards the 'inside the box: - means (21) for moving the box coated by the overform (15); - means for moving said mold rod (7); - Means (C) with two mechanical arms (3) slaved, on command, to an alternating horizontal movement from and to the intervention area of said operating heads (T), to supply the boxes to be coated and respectively unload them once reveties; characterized in that said means for moving the mold rod (7), said means for moving said lateral operating heads (7), and said means (C) for feeding the boxes to be coated and for unloading them once coated, are controlled by a central unit with microprocessors (E), programmable, so as to allow activation and control separately, that is to say according to several corresponding independent activation and control lines (L1, L2, L3) , thus allowing independent regulation, according to the program, of the respective intervention methods, in relation to the type of production to be executed. 2) Machine selon la revendication 1 caracterisée en ce que lesdits moyens pour mouvementer la tige portemoule (7) comprennent un premier moteur électrique (M1) du type Bruhless à commande électronique, lequel est associé à un correspondant encoder différentiel absolu (E1) et il est pourvu d'un dynamo tachymétrique (D1) pour le contrôle de la position du respectif axe: ledit moteur (M1) étant asservi à l'ordinateur (E) et relié à la tige portemoule (7) au moyen d'une transmission à courroi(22), de manière à réaliser le precis mouvement de la tige (7), même de type intermittant, à commande programmée, en relation au type de boïte et de la relative feuille de revêtement. 2) Machine according to claim 1 characterized in that said means for moving the mold rod (7) comprise a first electric motor (M1) of the Bruhless type with electronic control, which is associated with a corresponding absolute differential encoder (E1) and it is provided with a tachometric dynamo (D1) for controlling the position of the respective axis: said motor (M1) being controlled by the computer (E) and connected to the mold holder rod (7) by means of a transmission to belt (22), so as to achieve the precise movement of the rod (7), even of the type intermittent, programmed control, in relation to the type of box and the relative coating sheet. 3) Machine selon les revendications 1 et 2 caracterisée en ce que lesdits moyens pour mouvementer les têtes operatrices latérales (T) comprennent plusieurs cylindres actionneurs indépendants (CT), opportunement syncronisés avec le moteur (M1) de la tige (7), et lesquels sont asservis au dit ordinateur (E), de façon à en consentir la correcte intervention en sequence programmée des quatre têtes operatrices latérales (T) dans les phases actives du revêtement des parois extérieures de la boïte et de rebordage des bords du revêtement sur le bords des parois intérieures de celle-ci. 3) Machine according to claims 1 and 2 characterized in that said means for moving the lateral operating heads (T) comprise several independent actuating cylinders (CT), conveniently synchronized with the motor (M1) of the rod (7), and which are slaved to the said computer (E), so as to consent to the correct intervention in programmed sequence of the four lateral operating heads (T) in the active phases of coating the outer walls of the box and rimming the edges of the coating on the edges of the interior walls thereof. 4) Machine selon la revendication 1 caractérisée en ce que lesdits moyens (C) comprennent un deuxième moteur (M2) du type Brushless à commande électronique lequel est associé à un correspondant encoder différentiel absolu (E2) et il est pourvu d'une dynamo tachymètrique (D2) pour le contrôle de position du respectif axe: ledit moteur (M2) en étant asservi à l'ordinateur (E), de façon à consentir le correct et precis mouvement des bras (3), d'après le programme, en relation au type de production à exécuter. 4) Machine according to claim 1 characterized in that said means (C) comprise a second motor (M2) of the brushless type with electronic control which is associated with a corresponding absolute differential encoder (E2) and it is provided with a tachometric dynamo (D2) for the position control of the respective axis: said motor (M2) being controlled by the computer (E), so as to allow the correct and precise movement of the arms (3), according to the program, in relationship to the type of production to be performed. 5) Machine selon la revendication 3 caractérisée en ce que lesdits cylindres (CT) sont du type à activation électromagnétique. 5) Machine according to claim 3 characterized in that said cylinders (CT) are of the electromagnetic activation type. 6) Machine selon la revendication 1 caractérisée en ce que ledit élément surforme (15) est asservi aux correspendants moyens de mouvement, lesquels sont liés à l'ordinateur (E), de façon a consentir de varier à plaisir, d'après le programme, la respective course operatrice dans la phase de rebordememnt des bords de la feuille de revêtement sur les correspondentes parois intérieures de la boïte, en relation à la choisie hauteur ou profondeur du rebordement. 6) Machine according to claim 1 characterized in that said overformed element (15) is slaved to corresponding means of movement, which are linked to the computer (E), so as to agree to vary with pleasure, according to the program, the respective operating stroke in the phase of overlapping the edges of the covering sheet on the correspondents inner walls of the box, in relation to the chosen height or depth of the flange. 7) Machine selon la revendication 1 caracterisée en ce que lesdits moyens pour l'extraction de la boïte terminée par la surforme (15) comprennent plusieures tiges verticales (21) asservies, à commande, à un mouvement vertical alternatif de et vers la boïte, au moyen d'un correspondant cylindre actionneur ou autrement d'un moteur électrique, à commande de l'ordinateur (E). 7) Machine according to claim 1 characterized in that said means for extracting the box terminated by the overform (15) comprise several vertical rods (21) controlled, to command, by an alternating vertical movement from and to the box, by means of a corresponding actuating cylinder or otherwise of an electric motor, controlled by the computer (E).
EP94830133A 1993-04-01 1994-03-23 Machine for wrapping and folding over edges for box making Expired - Lifetime EP0618066B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT93PT000008A IT1265586B1 (en) 1993-04-01 1993-04-01 ELECTRONIC WRAPPING AND PULLING MACHINE FOR BOXES OF VARIOUS TYPES WITH PAPER OR FABRIC OF VARIOUS TYPES.
ITPT930008 1993-04-01

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EP0618066A1 true EP0618066A1 (en) 1994-10-05
EP0618066B1 EP0618066B1 (en) 1997-07-23

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FR2765191A1 (en) * 1997-06-26 1998-12-31 Cermex METHOD AND MACHINE FOR AUTOMATICALLY BONDING A HEAT SHRINKABLE PLASTIC FILM ON THE BOTTOM OF AN OPEN BOX
EP0893241A1 (en) * 1997-06-26 1999-01-27 Cermex Method and apparatus for adhering automatically a heat-shrinkable plastic film on the bottom of an open crate.
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ITBO20100325A1 (en) * 2010-05-21 2011-11-22 Emmeci Spa PROCEDURE AND EQUIPMENT FOR COATING A BOX.
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CN102248709A (en) * 2010-05-21 2011-11-23 爱慕斯股份公司 Method and equipment for covering box
CN103072306B (en) * 2012-12-27 2014-07-23 瑞安市华科包装机械有限公司 Bonding and forming device for inner box of paper box and surface paper
CN103072306A (en) * 2012-12-27 2013-05-01 瑞安市华科包装机械有限公司 Bonding and forming device for inner box of paper box and surface paper
CN103042723A (en) * 2012-12-31 2013-04-17 浙江中科包装机械有限公司 Carton pasting and positioning device
CN103213313A (en) * 2013-04-26 2013-07-24 江南大学 Multi-direction edge-folding adhering mechanism for combination type wine box base
CN103213313B (en) * 2013-04-26 2016-02-10 江南大学 For the multidirectional flanging adhesion mechanism of Combined wine box collet
WO2015079342A1 (en) 2013-11-29 2015-06-04 Emmeci S.P.A. Machine and method for covering boxes.
CN104210140A (en) * 2014-09-05 2014-12-17 深圳市金之彩文化创意有限公司 Automatic inner edge-wrapping device of packaging box
CN104441769A (en) * 2014-11-29 2015-03-25 江阴市汇通包装机械有限公司 Packaging bag composite film folding and pasting device
CN104441769B (en) * 2014-11-29 2017-01-25 江阴市汇通包装机械有限公司 Packaging bag composite film folding and pasting device
CN105479806A (en) * 2015-11-06 2016-04-13 毛确伟 Corrugated shoe box forming machine
CN110228226A (en) * 2019-06-28 2019-09-13 青岛科技大学 A kind of corrugated case process units of efficient stable
CN110228226B (en) * 2019-06-28 2021-03-09 青岛科技大学 Efficient and stable corrugated carton production device
CN112721308A (en) * 2020-12-30 2021-04-30 成都市裕同印刷有限公司 Paper box edge covering forming machine

Also Published As

Publication number Publication date
ITPT930008A0 (en) 1993-04-01
ITPT930008A1 (en) 1994-10-01
IT1265586B1 (en) 1996-11-22
ES2106486T3 (en) 1997-11-01
DE69404352D1 (en) 1997-09-04
DE69404352T2 (en) 1998-03-05
EP0618066B1 (en) 1997-07-23

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