BE338699A

BE338699A -

Info

Publication number: BE338699A
Authority: BE

Description

       

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  "PERFECTIONNEMENTS AUX L8'ANt'NES A EMBALLER " L'invention est relative à des perfectionnements aux machines à emballer,et vise en particulier une méthode et des moyens pour envelopper des. objets ou   artiolesde   forme   parallélipipédique,   ou des ensembles d'objets de cette former      dans une enveloppe ou emballage en forme de sachet ou d'étui, et elle a pour objet rétablissement de moyens grâce aux- quels l'extrémité ouverte de l'enveloppe ou de l'emballage est refermée   d*une   manière plus efficace qu'elle ne l'a été précédemment* 
L'invention consiste en une méthode propre à assurer la fermeture   'automatique   de l'extrémité ouverte d'une envelop- pe ou emballage, ouverte à uneextrémité,

   et constituée de telle manière   'que   la longueur de la patte terminale, rabattue en   dernier   lieu, est'plue   importante   que 1'épaisseur de l'objet enveloppé, méthode qui comprend les phases ci-après: a) la formation des replie latéraux et des deux larges pattes terminales de l'enveloppe ou de l'emballage, de manière telle que l'extrémité libre de la-patte large, rabattue en dernier   lieu se .prolonge   au delà de la face voisine de   l'en-   velopppe ou de 1'*emballage;

   et 

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 b) le rabattement du dit prolongement sur la face voisine de l'enveloppe ou de l'emballage, ainsi que l'assujettisse- ment de la patte terminale large, rabattue en dermier   lieu,.   à l'aide d'un adhésif, soit sur l'autre large patte, soit sur la face de l'enveloppe ou de l'emballage, soit encore sur les deux en même temps. 



   En outre, la présente invention consiste en une disposi- tion de machine   à.   emballer du type dans lequel une bande de matière est amenée en   travers   de la voie ou du chemin que suit l'objet de forme parallélipipédique, ou d'un ensemble d'objets de cette forme, et est entraînée par l'objet ou l'ensemble d'objets, dans un   mécanisne   plieur, qui entoure l'objet ou l'ensemble d'objets, de la bande, en y formant un emballage ou enveloppe, caractérisée par des moyens polir contrôler la bande de telle manière que la longueur de la patte terminale large rabattue en dernier lieu, soit plus importante que l'épaisseur de l'objet ou de l'ensemble d'ob- jets, et par des moyens pour rabattre et presser l'extrémité libre de la dite patte terminale sur la face voisine de l'en- veloppe ou de l'emballage. 



   L'invention sera ci-après plus explicitement décrite en se référant aux dessina annexés dans lesquels: 
Fig. 1 est une vue, en élévation latérale, d'une machine à former les emballages, construite conformément à l'invention; 
Fig. 2 est une vue en plan, détaillée du mécanisme plieur et du dispositif d'empilage; fig 3 est une vue en élévation latérale du mécanisme plieur et du dispositif d'empilage; figs 4,5 et 6 indiquent le fonctionnement du volet de support, mécaniquement relié: au dispositif d'empilage et fig 7 est une vue perspective d'un objet enveloppé dans un emballage constitué conformément à l'invention;

   
En se référant à la figure 1,1 désigne un magasin conditionné pour recevoir des paquets contenant des cigarettes, et débiter   eeux-ci,   par gravité, sur le tablier 2 de la ma- 

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 chine.Sous le tablier 2 de la machine, et de chaque côté de celui-ci est agencée une paire de convoyeurs à bandes sans fin 3 reliés à intervalles par des   tiges' 4   portant des poussoirs'6, propres à voyager dans une rainure ménagée dans le tablier de la machine. Chaque poussoir 5 est   condi-   tionné pour   Tenir   en engagement avecle paquet inférieur occupant le magasin   l.et   entraîner celui-ci suivant le tablier.

   En'avant du magasin 1 au dessus du tablier, est      monté une bobine 6 qui, porte la bande de matière 1 propre à être continuellement déroulée de la bobine grâce à une paire de galets à mouvement de rotation continu, 8 et 9 La bande 7 après avoir quitté les rouleaux 8 et 9 traverse une paire de lames de cisaille 10 et 11, qui sont agencées de manière à découper périodiquement une portion de la bande. La bande   7,' au   delà des lames   10-et   11 passe entre des guides 12 et 13 qui la   mentionnent   verticalement de telle manière qu'elle déborde au-dessus et en-dessous de la voie suivie par les paquets.

   Le mécanisme coupeur ci-dessus défini, est de préférence commandé, de telle manière que, lorsqu'un   poussoir (5   amène un paquet en engagement, avec la bande, une portion de celle-ci est découpée immédiatement après que le paquet est entré en contact. La portion de bande découpée est, conformément à l'invention, de préférence entraînée de telle manière,que la partie qui déborde sous le tablier de la machine présente une longueur moindre que la partie qui déborde au-dessus du tablier, bien qu'il soit à remarquer, que la découpe puisse être retardée de manière à permettre à la bande de glisser par rapport au paquet, en atteignant par conséquent au même résultat.

   Lorsque la portion de bande a été découpée, le poussoir ± conduit le paquet de cigaret- tes et la portion de bande à travers le mécanisme plieur, qui façonne la dite bande en forme de parallélipipède, ouvert à une extrémité, d'une manière bien connue dans le métier. 



  L'enveloppement du paquet est de préférence réalisé à l'aide d'une machine construite conformément au brevet anglais 165,891 Lorsque le paquet enveloppé sort du mécanisme   plieur     il/   

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 il est entraîné   à.   une vitesse plus grande que la vitesse linéaire du poussoir 5 jusqu'à une position stationnaire en dessous du dispositif d'empilage 14 Le paquet enveloppé peut être amené dans la position stationnaire d'une manière quelconque voulue, mais de préférence grâce au mécanisme plieur décrit dans le brevet anglais 214,792 Lorsque le paquet enveloppé est amené dans la position stationnaire, ou bien après que le paquet a atteint cette position on forme, les replis latéraux de l'extrémité ouverte de l'embal- lage,

   et une paire de ressorts légers 26 rabattent légèrement la patte terminale large supérieure de manière à empêcher les replis nouvellement formés de s'ouvrir en raison de l'élasticité naturelle de la matière qui forme l'emballage. 



   Lorsque le paquet est amené au repos à la base du dispositif d'empilage, une plate-forme 16 se soulève et une lèvre 16 formée sur cette plate forme rabat vers le haut la patte terminale large, inférieure, de l'emballage. La portion de la plate-forme 15 qui est voisine de la lèvre 16 est de préférence évidée de manière à permettre à un mécanisme en- patte colleur convenablement commandé de venir au contact de   la/      terminale large Inférieure, ou au contact de la faoe infé- rieure de l'emballage,   ou des   deux, pour appliquer une ma- tière adhésive sur la portion voulue de cet emballage. 



   Lorsque la plate-forme 15 commenoe à   s'élever,   comme il est indiqué en figure 4, une brosse 17 disposée à.l'ex- trémité libre   d'un, dispositif   chauffeur 18 vient au contact de la patte terminale large, supérieure, de l'emballage et rabat celle-oi vers le bas contre l'extrémité du   paquet.   tandis que ce paquet atteint la position   qui   est Indiquée à la figure 6 ' 
La   machinera   emballer est pourvue d'un bras oscillant 19 conditionné pour glisser dans une dépression de la plate-forme 15 venir en contact avec le bord inférieur du paquet, et presser le bord inférieur antérieur de ce dernier, contre la lèvre ,16,de manière à'former un repli net sur la 
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 patte lar!8' inf'éri . .

   dgalement que la brosse 

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 17 rabatte la patte terminale supérieure, vers le bas par dessus l'extrémité du paquet, et la maintienne appliquée contre cette dernière. 



   Lorsque le paquet atteint la position que montre la figure 6 la plate-forme commence à descendre, après quoi un volet, articulé au dispositif d'empilage, entre automatiquement en fonctionnement pour soutenir le paquet dans la dispositif, d'une manière telle que le paquet suivante   B vienne   en enga gement avec le prolongement 20 de la patte terminale supérieur re de l'emballage qui entoure le paquet A, Lorsque le paquet suivant B se meut vers sa position stationnaire, au pied du dispositif d'empilage, il   tient   en engagement avec . le prolongement   20 et   replie ce dernier sous le paquet A. 



   Lorsque le paquet B atteint là position de repos sur la plate-forme 15 le volet susdit cesse de soutenir le paquet supérieure a et le mouvement suivant du paquet B entraîne la compression du prolongement 20 de l'emballage du paquet supérieur A sur la face inférieure de ce dernier. 



   En raison de l'action combinée de la   brosser   et de la pression exercée' par le paquet B, la patte terminale large, supérieure 1.'de l'emballage qui entoure le paquet A est forte- ment brossée contre l'extrémité du paquet, et le prolongement 20 de cette patte rabattu sur la face inférieure de ce paque 
Le voleta qui soutient le paquet dans le dispositif d'em pilage, comprend de préférence deux leviers coudés   81, dont   l'un des bras de chacun d'eux est conditionné pour normalement pénétrer dans le dispositif d'empilage, sous l'influence des ressorts 22 et en être retiré par des cames 23 montées sur les organes 24 du mécanisme plieur, et propres à venir en engagement avec les   bras 25   des leviers 21 
Il est à remarquer,

   que le prolongement de la patte large supérieure peut être rabattu sur la face inférieure du paquet par   1 'intermédiaire ,   d'un organe plieur actionné par la com- mande principale de la machine, la    Sa*,   manière des leviers   21   formant le volet. 



   Il est à remarquer en outre que, conformément à l'invention 

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 il est possible d'emballer des paquets de   cigarette.   dans une enveloppe externe formée de papier mince et transparent, qui peut être aisément détachée du paquet en détachant   à   l'aide 
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 et du pouce le prolongement partiellement fixé, ]Q,7en arrachant



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  "IMPROVEMENTS TO L8'ANt'NES A PACKAGER" The invention relates to improvements to packaging machines, and relates in particular to a method and means for wrapping. objects or articles of parallelepiped shape, or sets of objects of this form in an envelope or packaging in the form of a sachet or case, and its object is to reestablish means by which the open end of the envelope or of the packaging is closed in a more efficient way than it was previously *
The invention consists of a method suitable for ensuring the automatic closing of the open end of an envelope or package, open at one end,

   and formed in such a way that the length of the end tab, folded down last, is greater than the thickness of the wrapped object, a method which comprises the following steps: a) forming the lateral folds and of the two wide end tabs of the envelope or packaging, so that the free end of the wide tab, folded down last, extends beyond the neighboring face of the envelope or of the envelope. 1 '* packaging;

   and

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 b) the folding of the said extension onto the neighboring face of the envelope or the packaging, as well as the securing of the wide end tab, folded down in the last place ,. using an adhesive, either on the other large tab, or on the face of the envelope or the packaging, or on both at the same time.



   Further, the present invention is a machine arrangement. packaging of the type in which a strip of material is fed across the path or path followed by the object of parallelepiped shape, or of an assembly of objects of that shape, and is entrained by the object or the set of objects, in a folding mechanism, which surrounds the object or set of objects, of the strip, forming therein a wrapper or envelope, characterized by polishing means controlling the strip such that the length of the wide terminal tab folded down last, is greater than the thickness of the object or of the set of objects, and by means for folding and pressing the free end of said terminal tab on the neighboring side of the envelope or packaging.



   The invention will be described more explicitly below with reference to the appended drawings in which:
Fig. 1 is a side elevational view of a package forming machine constructed in accordance with the invention;
Fig. 2 is a detailed plan view of the folding mechanism and the stacking device; Fig 3 is a side elevational view of the folding mechanism and the stacking device; Figs 4,5 and 6 show the operation of the support flap, mechanically connected: to the stacking device and Fig 7 is a perspective view of an object wrapped in a package formed in accordance with the invention;

   
Referring to Figure 1.1 denotes a store conditioned to receive packages containing cigarettes, and debit them, by gravity, on the apron 2 of the ma-

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 Under the apron 2 of the machine, and on each side of it is arranged a pair of endless belt conveyors 3 connected at intervals by rods' 4 carrying pushers'6, suitable for traveling in a groove provided in the apron of the machine. Each pusher 5 is conditioned to hold in engagement with the lower package occupying the magazine 1. And to drive the latter along the apron.

   In front of the magazine 1 above the apron, a reel 6 is mounted which carries the strip of material 1 suitable for being continuously unwound from the reel thanks to a pair of rollers with continuous rotational movement, 8 and 9 The strip 7 after leaving the rollers 8 and 9 passes through a pair of shear blades 10 and 11, which are arranged so as to periodically cut a portion of the strip. The strip 7, 'beyond the blades 10-and 11 passes between guides 12 and 13 which mention it vertically in such a way that it projects above and below the path followed by the packages.

   The above-defined cutting mechanism is preferably controlled such that when a pusher brings a packet into engagement with the web, a portion thereof is cut immediately after the pack has entered. The cut strip portion is, in accordance with the invention, preferably driven in such a way that the part which protrudes under the apron of the machine has a shorter length than the part which protrudes above the apron, although It should be noted that the cutting can be delayed so as to allow the tape to slide relative to the bundle, thereby achieving the same result.

   When the strip portion has been cut, the pusher ± drives the packet of cigarettes and the strip portion through the folding mechanism, which shapes said strip into a parallelepiped shape, open at one end, in a tight manner. known in the trade.



  The wrapping of the packet is preferably carried out using a machine constructed in accordance with British Patent 165,891 When the wrapped packet exits the folding mechanism it /

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 he is trained to. a speed greater than the linear speed of the pusher 5 to a stationary position below the stacker 14 The wrapped package can be brought into the stationary position in any way desired, but preferably by the fold mechanism described in British Patent 214,792 When the wrapped package is brought into the stationary position, or else after the package has reached this position, the lateral folds of the open end of the package are formed,

   and a pair of lightweight springs 26 slightly bend the upper wide end tab so as to prevent the newly formed folds from opening due to the natural elasticity of the material which forms the package.



   When the package is brought to rest at the base of the stacking device, a platform 16 lifts and a lip 16 formed on this platform flaps up the wide, lower end tab of the package. The portion of the platform 15 which is adjacent to the lip 16 is preferably recessed so as to allow a suitably controlled glue-tab mechanism to contact the lower wide terminal, or to contact the lower faoe. - top of the package, or both, to apply an adhesive material to the desired portion of this package.



   As the platform 15 begins to rise, as shown in Figure 4, a brush 17 disposed at the free end of a heater 18 comes into contact with the wide, upper end tab. of the package and fold it down against the end of the package. while this packet reaches the position which is shown in figure 6 '
The packaging machine is provided with an oscillating arm 19 conditioned to slide in a depression of the platform 15 to come into contact with the lower edge of the package, and to press the lower front edge of the latter, against the lip, 16, of so as to form a clear withdrawal
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 paw lar! 8 'inf'éri. .

   also that the brush

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 17 folds the upper end tab down over the end of the bundle and keeps it pressed against the latter.



   When the package reaches the position shown in figure 6 the platform begins to descend, after which a flap, hinged to the stacking device, automatically comes into operation to support the package in the device, in such a way that the The next package B comes into engagement with the extension 20 of the upper end tab of the package which surrounds the package A, When the next package B moves to its stationary position at the foot of the stacking device, it holds in place. engagement with. extension 20 and folds the latter under package A.



   When the package B reaches the rest position on the platform 15, the aforementioned flap stops supporting the upper package a and the following movement of the package B causes the compression of the extension 20 of the package of the upper package A on the underside. of the last.



   Due to the combined action of brushing and the pressure exerted by pack B, the wide, upper end tab 1. of the wrapper which surrounds pack A is strongly brushed against the end of the pack. , and the extension 20 of this flap folded over the underside of this pack
The flap which supports the package in the stacking device, preferably comprises two angled levers 81, one of the arms of each of which is conditioned to normally enter the stacking device, under the influence of springs 22 and be removed therefrom by cams 23 mounted on the members 24 of the folding mechanism, and able to come into engagement with the arms 25 of the levers 21
It is to be noticed,

   that the extension of the upper wide tab can be folded over the lower face of the packet by means of a folding member actuated by the main control of the machine, the Sa *, in the manner of the levers 21 forming the shutter.



   It should also be noted that, in accordance with the invention

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 it is possible to pack cigarette packs. in an outer envelope formed of thin and transparent paper, which can be easily detached from the package by peeling off using
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 and the partially fixed extension with the thumb,] Q, 7 by tearing off

Claims

xx then the envelope of the packet, another advantage of the invention consists in that it allows the wrapping of a parallelepipedal packet comprising a recess or a depression at each end, in an external cover made of transparent material * It should also be noted that the ends of packages containing tobacco, usually have a depression which makes them extremely difficult to surround with an outer wrapping, because they do not have any surface allowing the side folds to be pressed thereon. and the two wide end legs so as to secure them properly with an adhesive.

The present invention makes it possible to apply the wide terminal tab) folded down last, against the end of a tobacco packet, and to fix the extension thereof on the underside of the packet, thus obviating the previous difficulties * to ensure the packaging of parallelepiped shaped articles with depressants at each end * R E V E N D I C A T I O N S 1.

- A method of automatically closing the open end of a parallelepod-shaped package (made up such that the length of the wide terminal tab, folded down last, is greater - than the thickness of the object, or of a set of objects, enveloped), which includes! a) the formation of the lateral folds and of the two wide end legs * of the packaging, in such a way that the free end of the last wide end flap extends beyond the neighboring face of the ob - throw or set of objects to be packed;

as well as, <Desc / Clms Page number 7> b) the folding of the said extension on the neighboring face EMI7.1 wrapping, and securing, by means of adhesive, the wide end tab folded down last, either on the other tab, or on the side of the package, or EMI7.2 again on the end and on one side of the package.

2 A method of automatically closing a parallelepiped-shaped package, open at one end, which consists of: a) bringing a strip of packaging material across the path followed by the article, or set of objects, parallelepiped in shape; b) controlling the movement of the strip such that the length of the wide terminal tab, folded down last, formed at the open end of the packaging, is greater than the thickness of the object, or the set of objects, to be packed; c in shaping the strip around the object, or set of objects, of parallelepiped shape, into a package of this shape, such that the free end of the wide tab folded down last is extended to the beyond the neighboring face of the packaging;

d) to fold and press the said extension on the adjacent face of the packaging, and to support the last wide flap folded down by means of adhesive, 3. - A method for automatically forming a package. EMI7.3 go of form paa11é3, ipipédic, ue, as claimed in claim 2, in which the wide tab, folded down last, is suitable for being secured with the aid of adhesive, either on the end of the packaging, either on the latter, or on both.

4 A parallelepiped-shaped package as obtained by the method claimed in claim 1, or in claim 2, or in claim 3 A packing machine, of the type in which a strip of material is fed across the path followed by a <Desc / Clms Page number 8> object of parallelepiped shape, or of a set of objects, of this form which is driven by this object or this set of objects, 1 through a folding mechanism, which surrounds the object, or the set of objects, forming a package of parallelepiped shape, characterized by means for controlling the strip in such a way that the length of the wide terminal tab, folded down as the last link,

is greater than the thickness of the object, or of the set of objects of parallelepiped shape, and in which means are provided by which the free end of the last wide flap folded down can be folded up and pressed on the opposite side of the packaging.

8 A packing machine of the type in which objects of parallelepiped shape, or sets of objects of this shape, are first brought, by a conveyor, into a wrapping mechanism, and surrounded by a package of parallelepiped shape , open at one end, and then driven, at a speed greater than the linear speed of the conveyor, to a stationary position, the position in which the wide tabs, upper and lower, are formed at the open end of the package, characterized by means for controlling the strip which constitutes the packaging, in such a way that the length of the last wide flap folded down is greater than the thickness of the object, or of the set of objects,

and by means ensuring the flap., tement and the pressing of the free end of the last wide tab folded over the neighboring face of the package.

7 A packing machine of the type in which objects, or sets of objects of parallelepiped shape, are simultaneously driven by a conveyor, in rapid succession, through a wrapping mechanism, and surrounded by a parallelepiped shaped package, open at one end, after which, each wrapped object, or set of objects, is moved at a speed greater than the linear speed of the conveyor, and brought to a stationary position.

<Desc / Clms Page number 9> position in which the lower wide end tab of the package is folded upwards, the object, where the set of objects, wrapped being subsequently lifted into a stacking device which brings down the upper wide tab - upper part of the package, characterized by means for controlling the material in which the object or set of objects is wrapped, such that the length of the last wide flap folded down is greater than the thickness of the object, or of the set of objects and by means suitable for maintaining said object, or set of objects, in said stacking device so as to allow the extension of the wide end tab to be folded down upper and its application on the face,

lower part of the packed object (s).

8 A packing machine, as claimed in claim 7, in which means, mechanically connected to said stacking device, are suitable for supporting an object, or a set of objects. , wrapped, in this device, in such a way that the anterior end of the next object, or of the set of objects, folds up and presses the extension of the wide upper tab on the lower face of the object,. or set of objects, wrapped.

9. - A packaging machine, as claimed in claim 7, in which a tolet, mechanically connected to the stacking device is able to move periodically in the latter, so as to come into engagement with the lower face. of each successive wrapped object or objects and to support them in a position such that the anterior end of the following object or objects folds back the extension of the broad upper terminal leg of the object, or objects ¯, preceding on the lower face thereof, and by means, controlled by the movement of the object or objects, and suitable for freeing the shutter from engagement with the object, or the assembly a 'objects, when the object, or the set of objects,

next is fed into the stacking device 10. - A packing machine, as defined <Desc / Clms Page number 10> to claim 7, wherein means are provided for supporting each object or set of objects, wrapped, in the stacking device; and to fold the extension of the upper wide end tab of the package onto the underside of the package, while it is held in said position.

11. - A packing machine of the type in which objects, or groups of objects, of parallelepiped shape, are simultaneously driven by a conveyor in rapid succession, in engagement with a portion of material cut from a strip ( continuously unwound from a spool) when each object, or set of objects, comes into contact with the web, the object, or the set of objects being subsequently 'conducted., with the portion of material, through a folding mechanism which envelops the object or set of objects, in a parallelepiped-shaped package, open at one end, the wrapped object or objects being subsequently driven at a linear speed greater than the speed of the conveyor, in a stationary position,

position in which the lower wide end tab of the package is folded upwards; and the object, or the wrapped objects being subsequently lifted into a stacking device which folds down the upper wide terminal tab ,. in such a way that its free end extends beyond the face of the package, characterized by a flap, mechanically connected to the stacking device, so as to be able to be brought, periodically, into and out of engagement with the lower face of the each of the objects or sets of objects successful, sif, to support them while the anterior end of the object, or set of objects, following the extension of the last terminal leg, wide, folded, belonging to the preceding object, or set of objects,

on the underside of the water and by means ready to release said shutter when the next object, or set of objects, is introduced into the stacking device * 12. - A packing machine, as claimed; <Desc / Clms Page number 11> to the resale 8 or 9 or 10, or II ,, in which the means suitable for supporting in the stacking device each successive object, or set of objects, can be actuated by the movement of the device which shapes the side folds at the open end of the package.

13. A packing machine, as claimed in claim 7 'or 8, or 9, or 10, had it, in which means are provided to ensure that the last wide terminal tab folded down is applied against the end of the parallelepiped shaped packaging.

14. A wrapping machine as claimed in claim 13, wherein the last wide folded end tab is pressed against a brush as it is folded down and pressed against the end of the lug. packaging of parallelepiped shape, by the combined inaction of the brush and an articulated arm suitable for pressing the tab against the brush.

The method of wrapping objects, or sets of objects, of parallelepiped shape, into packages of that shape, substantially as described.

16 ka packing machine constructed, arranged and suitable for operation in substance as described with reference to the accompanying drawings.