FR2965509A1 - CARDBOARD SHEET FLAN, CROISILLON, METHOD AND MACHINE FOR CARRYING OUT SUCH A CROISILLON OBTAINED FROM SUCH A FLAN. - Google Patents

Abstract

The present invention relates to a blank (1) of cardboard sheet material for producing a cross (2) and the method, the machine and the corresponding cross. The blank comprises at least a first set of flaps, said first set comprising a first rectangular or square flap (3) suitable for forming the bottom of the spider, connected to a second flap (5) that is substantially square or rectangular, capable of forming a flap. intermediate wall between two compartments, the second flap having a first lug (7) locking and a third central flap (10) connected to the first flap located on the side corresponding to the lug, substantially rectangular and provided with a first tongue (12). ) openwork arranged to lock with the first lug to maintain the blank volume to achieve the spider.

Description

BACKGROUND OF THE INVENTION The present invention relates to a blank made of cardboard sheet material for the production of at least one spider. for dividing a container-container into several compartments, the blank having a plurality of hinged flaps which, by folding, are capable of forming a part of the compartments. It also relates to a method and a machine for producing such braces as well as braces obtained. It finds a particularly important but not exclusive application in the field of modular packaging of bottles thus isolated by such braces. It is also applicable to all types of products whether they are round, square or in bags. By modular means the fact of being able, with the same type of blank, to provide groupings of products in a modular and multiple way. Thus, with the same flanks contiguous and multiplied by two, three, four, five, it is possible to group three, six, twelve, fifteen bottles, etc. We already know braces consisting of walls crossed in two orthogonal directions. These braces are generally made from several cardboard blanks provided with slots and assembled to form the walls of the braces. However, they have disadvantages. Indeed, it is necessary to provide at least two different kinds of blanks, one for the longitudinal walls and another for the transverse walls, which complicates manufacture and assembly. It is then necessary to assemble the blanks together, which has disadvantages of cost and installation time. Also known (EP 0 332 538) blanks in one piece. If such blanks make it possible to avoid certain disadvantages of the braces in several parts, thanks in particular to a system of bellows, these are source of overthickness and dimensional instability of the braces, because of their elasticity. Also known is a one-piece blank of sheet material which has two sets of separable hinged flaps. Each set is capable of forming part of the compartments of the braces and an intermediate panel, 20 connected to the two sets of flaps which, after separation, allows to form the braces. Such a blank, however, has mounting difficulties and is again, here again, quite complex to implement. All of these blanks are, from the outset, structurally designed and dimensioned for a single number of products to be packaged. In other words, they are not scalable. The object of the present invention is to provide a blank, a method, a machine and a spider which better than those previously known to the requirements of the practice, in particular in that it will allow a transport without damage in a corrugated cardboard box of containers. especially in glass, and this in a modular way. With the same blank according to the invention, it becomes possible to provide modular protection of groups of products in variable numbers, from two to forty-eight products for example. In other words, for a given blank format, of determined height and geometry section, and whether the products are of round or rectangular section, it is possible to insert one or more basic modules of the same type. , possibly supplemented by a vertical separating surface, according to the number of products to be grouped in the corresponding box selected. The invention thus makes it possible, for a given product format, to make many different combinations of different groupings, by limiting the numbers of carton blank references required. For example, and depending on the selected base unit 20 corresponding to two bottles, three bottles, four bottles, five bottles or six bottles, it becomes possible to predict the count in multiples of these numbers, respectively creating up to eight compartments or cavities, fifteen cavities, twenty-five cavities, twenty five cavities, thirty cavities etc. Thanks to this notion of basic modules, which will then be reused next to each other, parallel or after reversal, with or without separating plate, the The possibilities of cross-laundering crates become very numerous at an optimized cost, especially in view of this standardization.

For this purpose, the present invention essentially provides a blank made of cardboard sheet material for producing at least one crosspiece for subdividing a container-container into several compartments, said blank comprising a plurality of hinged flaps which, by folding, are capable of to form a part of the compartments, characterized in that it comprises at least a first set of flaps, said first set comprising 10 a first rectangular or square flap, suitable for forming the bottom of the spider, connected on one side by a first line folding a second substantially square or rectangular flap, adapted to form an intermediate wall between two of said compartments, said second flap having a first locking lug located at the outer end of its side adjacent to the first fold line, and a third central flap connected to said first flap by a second fold line adjacent and perpendicular 1 to the first fold line and located on the side corresponding to the lug, substantially rectangular and provided with a first perforated tongue arranged to lock with the first lug to maintain the blank volume to achieve said spider. In advantageous embodiments, one and / or the other of the following provisions is also used: - the longitudinal dimension or length 1 of the third flap is equal to or greater than the sum of the lengths 11 and 12 first and second components; the first set of flaps comprises a fourth flap connected to the first flap by a third fold line on the opposite side to the second flap, said fourth flap being substantially square or rectangular, suitable for forming an intermediate wall between two of said compartments and comprising a second flap; locking pin located at the outer end of its side adjacent to the third fold line, said third shutter comprising a second perforated tongue arranged to lock with the second pin to hold the blank in volume to achieve said spider; the longitudinal dimension or length L of the third flap is greater than or equal to the sum L 'of the lengths of the first, second and fourth flaps; the longitudinal dimension or length L of the third component is less than the sum L 'of the lengths of the first, second and fourth components; the overall transverse dimension or width 1'2 of the second flap is greater than that 1'1 of the first flap; the second, third and / or fourth flaps 25 comprise lateral edges comprising a portion biased towards the first flap; the blank comprises at least one second set of flaps, identical to the first set of flaps connected to the outer edge of the third flap of the flap; first set by a breakable splice line; it comprises at least a third set of identical flaps and connected to one of the two preceding games by a breakable junction line; where the tabs are located on the outer edge of the third flap; where the tabs are located inside the surface of the third flap; the second and fourth flaps each comprise on their opposite side respectively to the first and third fold lines a locking notch of a separator plate when the blank is set in volume; the third flap comprises on its outer edge on the opposite side to the first flap, a central notch for locking a separator plate when the blank is set in volume. The invention also relates to a set of blanks comprising at least one blank of the type described above with locking notches and further comprising a separator plate arranged to cooperate with said notches of the corresponding game. The invention also provides a brace obtained with any of the blank arrangements provided above. Advantageously, the spider comprises at least two sets of flaps head to tail. The invention also provides a method of automatically manufacturing corrugated cardboard crosspieces for compartmentalizing boxes from at least one stack of identical blanks of the type described above. It also relates to a method for the automatic manufacture of corrugated sheet metal crosspieces, for the compartmentalisation of boxes, from at least one stack of identical blanks, each blank comprising several articulated flaps which, by folding, are capable of forming a part of the compartments, characterized in that the blank comprising at least a first set of flaps, namely a first rectangular or square flap, connected on one side by a first fold line to a second substantially square or rectangular flap, said second flap having a first locking lug at its outer end adjacent to the first folding line, a third central flap connected to said first flap 10 by a second folding line adjacent to the first folding line and located on the side corresponding to the first folding line. pin, substantially rectangular and provided with a first and a second locking tabs e, 15 and a fourth flap connected to said first flap by a third fold line adjacent the second substantially rectangular fold line, having a second locking lug at its outer end adjacent to the third fold line, method in which the bottom of a module of the spider is formed by pumping the first flap in a cavity and / or by raising the second, third and fourth flaps to bring the blank volume, the lugs are locked in the tabs arranged to once the blank is in volume, thus forming said module, the module is grasped and transferred for insertion into a corresponding box. Advantageously, at least two brace modules are simultaneously constituted from at least two sets of flaps and are grouped together for transfer before insertion into the box.

In an advantageous embodiment, the two sets of flaps are separated from the same blank before forming the two corresponding modules. Also advantageously, a rotation of 180 ° of one or more modules is carried out before the transfer. In another advantageous embodiment, the modules are moved by suction and through a set of cams and pulleys.

The invention also provides a machine for carrying out the method as described above. It also proposes a machine for automatic manufacture of corrugated cardboard sheet crosspieces, for the compartmentalisation of boxes, comprising means for storing at least one stack of blanks, namely a first stack consisting of identical first blanks each formed by several articulated flaps which, by folding, are capable of forming part of the compartments, characterized in that the blank comprising at least a first set of flaps, namely a first substantially rectangular or square flap, connected on one side by a first line of folding to a second substantially square or rectangular flap, said second flap comprising a first locking lug located at the outer end of its side adjacent to the first folding line, a third central flap connected to said first flap by a second folding line adjacent to the first fold line and located on the side corresponding to the ergot, sensib rectangularly and provided with a first and a second locking tongues, and a fourth flap connected to said first flap by a third fold line adjacent to the second substantially rectangular fold line, comprising a second locking lug located at its outer end adjacent to the third fold line, the machine comprises gripping means by suction of at least a first set of the blank, means for forming a module by swiveling the first flap in a cavity and / or by raising the second, third and fourth flaps to make the blank volume, locking means of the lugs in the tabs arranged to face the volume blank, thus forming said module, means of gripping the module and means for transferring said module for insertion into a corresponding box. Advantageously, the machine comprises means for simultaneous formation of at least two brace modules from at least two sets of flaps and means for grouping said modules for transfer before insertion into the box. In another advantageous embodiment, the machine comprises blade separation means of the two sets of flaps from the same blank before forming the two corresponding modules. Also advantageously, the machine comprises means for rotating 180 ° of one or more modules before the transfer comprising a pivoting movement of the first module and / or the second module so as to bring the external faces of the third components into position. contact each other. The invention will be better understood on reading the following description of embodiments given below by way of non-limiting examples. The description refers to the drawings which accompany it in which: Figure 1 shows in plan view, a blank according to a first embodiment of the invention own lo form two compartments. FIG. 2 is a perspective view of the cross or basic module obtained with the blank of FIG. 1; FIG. 3 is a plan view of a second embodiment of the blank according to the invention, suitable for forming three compartments; . FIG. 3A shows an exemplary embodiment of blanks with two sets of flaps according to the embodiment of FIG. 3, for cutting from the same cardboard plate. FIG. 4 is a perspective view of the brace or base module obtained with the blank of FIG. 3. FIGS. 4A, 4B, 4C and 4D show in perspective assemblies of two or three braces according to FIG. 4C and 4D in particular show the crossbar assemblies in pairs, after turning a spider to be placed inside an eight-sided package. FIGS. 5 and 5A show in plan view a set of blanks according to one embodiment of the invention, comprising a blank for a basic module 2965509 II according to a third embodiment of the invention (FIG. 5) and a plate separator or intermediate (FIG. 5A). Figure 6 is a perspective view of the blank of Figure 5 when mounted as a base module. Fig. 6A is a perspective view of the base module of Fig. 6, after insertion of the intermediate plate of Fig. 5A to form a six-compartment brace.

FIGS. 6B, 6C and 6D show in perspective the constitution of a set of two modules with an intermediate plate as described with reference to FIG. 6A, making it possible to obtain the braces forming the subdivisions into several compartments of a four-space box. sides before introduction of the products into the box (Figure 6C) and after (Figure 6D). FIG. 7 shows a fourth embodiment of a blank according to the invention, and FIG. 7A an intermediate plate that can be used with such blanks. Figures 8 and 8A show a set of braces obtained with the blanks of Figures 7 and 7A, creating 24 storage positions.

FIGS. 9, 10 and 11 show diagrammatically different cross-sections according to embodiments of the invention, with four cells, five cells and six cells, with a separating plate (FIG. 9), two separating plates (FIG. 10) and three separator plates (FIG. 11), which in the latter case of combination of modules makes it possible here and for example to store 36 bottles.

FIGS. 12A and 12B are top views of cardboard plates showing blank cutting according to two embodiments of the invention by panoply, namely a panoply of four sets of flaps or parallel modules (FIG. 12A) and an array of two times two modules spade (Figure 12B). FIG. 13 gives the steps A to x of the method of forming braces according to the embodiment of the invention more particularly described here. FIGS. 14A, 14B, 14C and 14D show, in lateral perspective, the main steps of the process of FIG. 13. FIGS. 15A and 15B show two braces 15 obtained with four-sided or eight-sided boxes. FIG. 16 is a schematic plan view, from above, of a machine according to one embodiment of the invention. Fig. 17 is a partial perspective view of a portion of the machine according to the embodiment of Fig. 16 showing the forming means of the modules. FIG. 18 is a partial perspective view of a second part of the machine of FIG. 17, showing the means for transferring the blanks above the forming station. In the remainder of the description, the same reference numerals will be used. to designate the same or similar elements. FIG. 1 shows a blank 1 made of cardboard sheet material, for example made of 3 mm thick corrugated cardboard, for producing the cross-member 2 of FIG. 2. The blank 1 comprises a first square flap 3, suitable for forming the bottom of the spider, connected on one side by a first fold line 4 to a second substantially rectangular flap 5, adapted to form an intermediate wall between two compartments 6. The second flap 5 comprises a first locking pin 7 located at the outer end of its side 9 adjacent to the first fold line 4. The blank 1 further comprises a third flap 10 connected first flap by a second fold line 11 adjacent and perpendicular to the first, and located on the side corresponding to the ergot. The third flap 10 is substantially rectangular and is provided with a first tongue 12 perforated by an oblong orifice 13, made in a rectangular recess 14 made in the center of the outer edge of the third flap, opposite to the first flap.

The tongue 12 is connected to the remainder of the third flap 10 in the lower part of the recess 14 by a fold line 15 on which the orifice 13 is partly astride. The lug 7 is made on the side 9 of the second flap 5 located on the side of the third flap 10, and constitutes one of the corners of a recess 16, for example substantially square, formed in the corner of said second flap 5. This recess will allow the recessing of the tongue or more precisely of its end 17, which is also jammed at its upper periphery in a small notch 18, formed at the corner of the recess 16 adjacent to the spigot 7.

Finally, the third flap 10 has a longitudinal dimension or overall length 1, greater than the sum of the lengths 11 and 12 of the first and second flaps, for example one tenth of the length 1. The third flap 10 comprises lateral sides 19 which are in the upper part perpendicular to the outer periphery 20 of said flap, and in the lower part, that is to say located on the side of the fold line 11, obliquely towards said fold line, thus forming angles which will make it easier to fit into the package. Similarly, the lateral side 21 of the second flap 5 located on the side opposite the lug 7 relative to the flap, is formed of a first portion 22 perpendicular to the outer end side 23 of the second flap, and a second portion obliquely 24 towards the first fold line 4, which thus also has a bevel shape, further facilitating introduction for embedding the spider in the box. The respective dimensions of these different components are for the third component a length overall 1 smaller at the base for example 0.81. The first component is, for example, and in turn square with a length and width equal to 11r, the second component being for its part a length equal to the width of the third component and of a larger overall width. equal to half the length of the third flap is 1/2. FIG. 3 shows a blank 25 according to a second embodiment of the invention suitable for forming a cross-section module 26 shown in FIG. 4. The blank 25 comprises a flap 27, for example rectangular, capable of forming the bottom of the crosspiece 26, connected on one side by a first fold line 4 to a second flap 5 of the type described with reference to FIG. 1. It has on the other opposite and symmetrical side with respect to a central axis 28 of transverse symmetry of the blank a fourth flap 29 connected to the first flap 27 by a third fold line 30, said fourth flap thus also being substantially square or rectangular like the second flap 4 and suitable for forming a second intermediate wall 29 between two of said compartments 6. fourth flap 29 has a second lug 31 symmetrical to the first lug 7 of the second flap 5 relative to the central axis 28 of symmetry. The second locking lug 31 is located at the outer end 32 of the adjacent side 33 at the third fold line 30. The blank 25 furthermore comprises a third substantially rectangular central flap 34 provided with two identical perforated tongues 35 of the same type. 12 of the tongue 12 described with reference to Figure 1, and arranged to lock with the first and second lugs while being embedded in the recesses 18,36 of the first and third flaps to achieve the spider 26. 30 FIG. 3A shows a corrugated cardboard plate which will make it possible to form the blanks 25, 25 'making it possible to obtain the crosspieces of FIG. 4. FIG. 4A shows two braces juxtaposed with each other 26, 26 ', the spider 26' resting respectively on the edges 21, 37 of the end of the second and fourth flaps 5 and 29 of the spider 26.

Figure 4B shows three crosspieces 26, 26 ', 26 "arranged in the tail leu leu.The spider 26" can be inverted so as to have open compartments 38 outwardly on either side.

FIG. 4C shows two sets of braces 26, 26 ', before turning the spider 26', opposite two known-type eight-sided packages. FIG. 4D shows, for its part, the braces placed inside the packs after turning up the crosspieces 26 ', which makes it possible to locate the openings 38 outwards, allowing the cut corners 40 to conform to the shape of the bottles. angle (see Figure 4D). Figure 5 shows a third embodiment of a blank 42 according to the invention. Here the blank comprises a first rectangular flap 43 connected by a first fold line 44 to a second flap 45 on one side and on the opposite side by a third fold line 46 to a fourth flap 47, said fourth flap being symmetrical with first flap with respect to an axis of symmetry 48 of the blank, axis perpendicular to the transverse dimension of the first, second and fourth flaps.

The blank 42 further comprises a third substantially rectangular main flap 49 comprising lateral edges 50 directed towards the first flap, obliquely towards the first flap, the third main flap being connected to said first flap by a second fold line 51 to the side adjacent to the first and third fold lines 44 and 46. The third main component is of overall length L less than the overall length L 'of the sequence of the first, second and fourth components. Each of the second and fourth flaps is provided with a notch 52, symmetrical to the other with respect to the central axis 48, said notches being arranged at the right of the first and third fold lines 44 and 46. More specifically, these notches are formed by an orifice 53 formed in a tongue 54 made in a recess, for example rectangular 55 in the third flap. The height at which this notch is, when the tongue is erected perpendicularly to the flap 49, corresponds to that of the lugs or hooks 56 respectively belonging to the first flap 45 and fourth flap 47 located on the side of the third flap. These hooks are arranged to engage in the recesses 53, once the tongue folded upwards horizontally. Specifically, the hooks 56 are formed by a suitable recess 57 of the carton, at the corner 58 of the corresponding cardboard flap, directed outwards. A small groove 59 in the bottom of the recess also allows snapping and locking of the end 60 of the tongue 54 when the spider 61 is formed, as shown with reference to Figure 6.

In the embodiment more particularly described here with reference to FIG. 5, each of the first and fourth flaps further comprises a notch 62 perpendicular to the fold lines 44 or 46, and practiced in the center or substantially in the center of the outer side of the flap. end 63 of said flaps, said notches 62 being adapted to cooperate with a separating plate 64 (see Figure 5A), itself provided with notches 65 adapted to be inserted into the notches 62, when the plate is put in place. The notches 62, 65 are for example terminated at their outer end by V-shaped openings for better introduction and guiding of the one into the other, before blocking.

FIGS. 6B, 6C and 6D show the use of such assemblies 61, 64; 61 ', 64', on the outside of a package (FIG. 6B), inside a rectangular packaging 67, before introducing the separating plates 64, 64 ', (FIG. 6C) and after filling with products 68 which present here rectangular shapes (Figure 6D). In the embodiments of Figures 6, 6A, 6B, 6C, and 6D, and to be able to have open locations on the side of the inner walls of the box 67, the set of blanks 61, 64 has been returned to be put head spade with the set of blanks 61 ', 64', as shown by the arrow 69 in Fig. 6B. This is an example of grouping made from a module of three cells for rectangular bottles, to obtain very simply and instantly a cross of twelve cells, thanks to two separator plates.

FIG. 7 shows another embodiment of a blank 70 provided with a first rectangular flap 71, a second flap and a fourth flap 72 and 73 connected on both sides to the first flap. by first and third fold lines as described above with reference to Figure 3, and provided with lugs of the type described with reference to the same figure on their ends 18. The third central flap 74 includes lo lo, similarly to the flap 34 of FIG. 3, two tabs 35. In this embodiment, they are separated on the transverse central axis 28 of the package, by a notch 75, for example terminated by a small slot in FIG. Small hook shape 76. This small slot or cut located in the lower part, at the end of the notch 75, allows better attachment of the splitter plate provided to complete the cross. This is for example 20 of the plate 77 of Figure 7A, which could be used on a series of five or six braces each obtained with the blank 70 of Figure 7. This plate separator is itself provided with notches 78 arranged to cooperate with the notches 75 of the blank of FIG. 7, notches also provided with cuts in the form of small hooks 76. FIG. 8A shows the result of the spider 79 obtained with the different sets of 30 blanks of Figure 7. As shown in Figure 8 the central separator plate 77 is introduced from above and makes them integral with each other. The assembly can then be inserted in a package of adequate size. Figures 9, 10 and 11 show examples of groupings feasible from basic modules as described above with four cells (Figure 9) five cells (Figure 10) and six cells (Figure 11). From the module 80 corresponding to the blank of FIG. 7, provided with a central notch 75, and the separating plate 77, a cross of twenty round bottles is obtained by the use of five modules and a plate separating. From a module 81, provided with two notches 82 of the notch type 75, a cross of thirty round bottles is obtained, for example with six modules 81 plus two separating plates 77. Finally, from a cross 83 provided with three notches 84 distributed evenly between the tongues 35 and corresponding to the notches 82 and 75, we obtain a spider 86 of thirty six round bottles, using here six modules 83, plus three separating plates 77. It is shown in FIGS. FIGS. 12A and 12B show two embodiments of plates 90 and 91 making it possible to obtain blanks 25, 25 'and 25 ", 25" of the type described with reference to FIG. 3. In a first case (plate 90) the blanks are arranged to be cut by a flat cutting machine of known type, for example manufactured by the Swiss company BOBST, following each other. In a second case (plate 91) two of two successive blanks are placed head to tail, symmetrically with respect to a transverse axis of symmetry 92.

It appears that these provisions will save the consumption of cardboard. FIGS. 13A to 13K show the main steps in the process of manufacturing braces from modules of the type described with reference to FIG. 12A. The blanks making it possible to obtain the modules are grouped together in sets that make it possible, for example, to cut two groups 101 of modules in one and the same width in a cardboard plate, said groups being interconnected by attachment points which can break with traction or In shear Here, for example, but in no way limiting, was chosen to take a group of four modules according to Figure 12A. After separation of blanks delivered in panoplie, each cardboard blank having two to four modules interconnected by attachment points, by means of metal blade 100, there are two groups 101 blanks, which are themselves separate between them, to form the four blank lines 25, 25 ', 25 "and 25"'. These are moved (arrow 102) on the forming elements or training stations 103 of modules. These setting elements in modules consist of several stations in parallel, the number of positions varying according to the number of blanks desired. In the embodiment of FIG. 13, there are four volume setting stations. The first steps A and B allow unstacking, cutting in a manner known per se, and the transport 102 to the training stations 103. The separation of the blanks can be done during the transfer, or at the following training stations, (Step C), for example, at the transfer head. Step D is the cavity-forming step 5 in the cavity and / or vertical rise of the folding fingers 104. The blank begins to take its folded configuration. Once the blanks in the position of braces Io (Step E), is carried out the F-locking step of the tongues 105 by the movable fingers 106. Then in step G, there is withdrawal of the movable fingers, the braces being then constituted and the tabs embedded in the lugs 107. In the embodiment described here, a step H of rotation (arrow 108) 180 ° of one or more modules 25 and 25 "is carried out. is for example performed by the suction gripping means arranged to pivot mechanically about an axis of 180 ° Then follows the step J. The objective here is to obtain a symmetry of the spider 109 for insertion into the crates 110 (arrow 111) which also makes it possible to avoid any risk of the vertical end wall of the last module abutting against the wall of the box, the braces are then introduced into the boxes 110 in order to obtain the crisscrossed boxes. 112 in step K. In order to better illustrate the important steps of the process according to the invention, they have been shown in perspective and in side view in FIGS. 14A to 14D.

These important steps correspond to steps C, D, F and J of FIG. 13 described above. The blanks 25, 25 ', taken in known manner by suction cup devices are placed on the forming elements 103 (103'). These comprise a central portion 113 (113 ') in the form of a well (see FIG. A piston-shaped piece 114 provided with a push plate 115, for example actuated pneumatically at 116, is then positioned on the bottom 27 of the blank 25 with which it has a complementary shape, and / or smaller. The plate is here, and for example, removable and can be changed to adapt to the dimensions of the bottom 27. In FIG. 14B to form the module, either the pusher plates are lowered, or the lateral fingers 104 are raised, or the two, and this to form the walls of the braces by putting vertically the first and fourth side flaps 5 and 29 (5 'and 29') and the third flap 34, 34 '. At 14C, the tongues 35 are folded (arrow 117) on the pins 7, 31 by folding fingers (not shown) to obtain the spider 26, 26 '. Then the 118 piston / hinge assembly is deactivated and / or moved to allow access to the means 119 for lifting, gripping and moving the braces 26, 26 'to the cross boxes.

In FIGS. 15A and 15B, two embodiments of boxes with braces according to the invention have been shown.

In the first (FIG. 15A), the braces 120 are inserted without 180 ° rotation of at least one of the modules, (26, 26 ', 26 ", 26"') thus adaptable to a rectangular box 121.

In the second, (FIG. 15B), there is rotation of at least one of the elements 26, making it possible to have an opening 38 on each side of the brace 122, which can be particularly used in crates 123 with cut corners 121.

FIG. 16 shows a machine 130 for manufacturing automatic braces from sheets of corrugated cardboard 91 separated by a blade, for compartmentalizing boxes, comprising means for storing 131 at least one stack of blanks 133.

In addition, provision is made at 134 for a vertical separation plate magazine 135. The blanks are, for example, blanks as described with reference to FIG. 5. The machine 130 comprises means 136 (shown in phantom in FIG. 16) type of gripper known per se, for example by suction cups 137 (see FIG. 18), by suction of at least a first set of blanks 138, means 139 (see FIG. swabbing the first flap and / or raising fingers 103, 104, around and / or in a cavity 113, raising the second and third flaps. These means are constituted in a known manner. The elements (not shown) for locking the lugs in the tongues vis-à-vis once the plane in volume, include for example small pistons to push the tabs by folding on the lugs.

Means 140 for gripping the modules 26, one by one and transfers for insertion into boxes (not shown) at 141 in a manner known per se along the path 142, for evacuation of the cross boxes in 143. FIG. 17 also shows schematically the arrival of the blanks 25, 25 ', 25 ", 25"' for example in the form of plate 91. These are positioned on the piston means 103, themselves arranged on guide rails 144 allowing adjust laterally and horizontally the size of the plungers and the plucking fingers before evacuation. FIG. 18 shows, for its part, the mechanical elements which are superimposed on the piston means, and in particular the means 138 for gripping the blanks, again designed in a manner known per se, and movable horizontally in X, Y, Z , to come to apply the blanks on the wells by means of jacks then evacuate them to the crates once formed. As is obvious and as also follows from the above, the present invention is not limited to the embodiments more particularly described. On the contrary, it encompasses all the variants and in particular those where the attachment means of the second and fourth components on the third component are different.

Claims (25)

REVENDICATIONS1. Blank (1, 25, 42, 70) made of cardboard sheet material for producing at least one cross (2, 26) for subdividing a container-container into a plurality of compartments (6), said blank comprising a plurality of hinged flaps which, by folding, are capable of forming part of the compartments, characterized in that it comprises at least one first set of flaps, said first set comprising a first flap (3, 27, 43, 71) rectangular or square, clean to form the bottom of the spider, connected on one side by a first fold line (4, 44) to a second flap (5, 45, 72) substantially square or rectangular, adapted to form an intermediate wall between two of said compartments ( 6), said second flap having a first locking lug (7, 56) at the outer end of its side (9) adjacent to the first fold line (4), and a third flap (10, 34, 47, 74) connected to said first component by a second folding line (11, 51) adjacent to the first fold line and 25 located on the side corresponding to the pin, substantially rectangular and provided with a first perforated tongue (12, 35) arranged to lock with the first pin to hold the blank in volume to make said cross. 30 2. blank according to claim 1, characterized in that the longitudinal dimension or length 1 of the third flap (10) is equal to or greater than manlengths 11 and 12 of the first (3) and second flaps (5). 3. Flan (25) according to any one of the preceding claims, characterized in that it comprises a fourth flap (29, 47, 73) connected to the first flap by a third fold line (30) on the opposite side to the second flap (5, 45, 72), said fourth flap being substantially square or rectangular, adapted to form an intermediate wall between two of said compartments and having a second lug (31, 56) for locking located at the outer end (32) of its adjacent side (33) to the third fold line (30), and in that said third flap (34) comprises a second tongue (35) openwork arranged to lock with the second lug (31) to maintain the volume blank in order to make said spider. 4. blank according to claim 3, characterized in that the longitudinal dimension or length L of the third flap (74) is less than the sum L 'of the lengths of the first, second and third flaps (71, 72, 73). 5. blank according to claim 3, characterized in that the length L of the third flap (34) is greater than or equal to the sum L 'of the lengths of the first, second and fourth flaps (27, 5, 29). 6. Blank according to any one of the preceding claims, characterized in that the transverse dimension or width 1'2 of the second flap (5, 45, 72) is greater overall than that 1 of the first flap (3, 43 , 71). 7. blank according to any one of the preceding claims, characterized in that the second, third and / or fourth flaps (5, 29, 45, 47, 72, 73) comprise side edges comprising a portion biased towards the first shutter. 8. blank according to any one of the preceding claims, characterized in that it comprises at least a second set of flaps (25 ', 25 "), connected to the outer edge of the third flap of the first set by a breakable junction line . 9. Blank according to claim 8, characterized in that it comprises at least a third set of flaps connected to one of the two preceding games by a breakable junction line. 10. blank according to any one of the preceding claims, characterized in that the or tongues (35) are located on the outer edge of the third flap. 11. blank according to any one of claims 1 to 10, characterized in that the or tongues are located inside the surface of the third flap (49). 12. blank according to any one of the preceding claims dependent on the 3, characterized in that the second and fourth flaps each comprise on their opposite side respectively to the first and third fold lines a notch (65) locking a plate separator (64) when the blank is placed in volume. 13. blank according to any one of claims 1 to 11, characterized in that the third flap (74) has on its outer edge on the opposite side to the first flap (71), a notch (75) central locking a separating plate (77) when the blank is placed in volume. 14. Set of blanks comprising at least one blank according to any one of claims 12 and 13, characterized in that it further comprises at least one separator plate (64, 77) arranged to cooperate with said notches games corresponding. 15. Spacer (26, 26 ', 26 "), characterized in that it results from the juxtaposition of at least two sets of shutters belonging to a blank according to any one of the preceding claims. 16. Cross according to claim 15, characterized in that it comprises at least two sets of flaps head to tail. 17. A process for the automatic manufacture of corrugated cardboard crosspieces (2, 26, 26 ', 26 ", _) for the compartmentalization of boxes from at least one stack of identical blanks, each blank (1 , 25, 42, 70) comprising a plurality of articulated flaps which, by folding, are capable of forming part of the compartments, characterized in that the blank comprising at least a first set of flaps, namely a first flap (3, 27 , 43, 71) rectangular or square, connected on one side by a first fold line (4, 44) to a second flap (5, 45, 72) substantially square or rectangular, said second flap comprising a first locking lug located at its outer end on the side adjacent to the first fold line, a third central flap (10, 34, 49, 74) connected to said first flap by a second fold line (11, 51) adjacent to the first line of folding and located on the side corresponding to the lug, substantially r ectangular and provided with a first and a second locking tabs (12, 35, 31), and a fourth flap (29, 47, 73) connected to said first flap by a third fold line adjacent to the second line of folding, substantially rectangular, comprising a second locking lug (31, 56) located at its outer end on the side adjacent to the third folding line, in which method the bottom of a module of the spider is formed by pressing the first flap in a cavity or by raising the second, third and fourth flaps to bring the blank in volume, the lugs are locked in the tabs arranged to face the blank once the volume, thus forming said module, the module is grasped and it is transferred for insertion into a corresponding box. 18. The method of claim 17, characterized in that one simultaneously constitutes at least two brace modules from at least two sets of flaps and grouped them for transfer before insertion into the box. 19. The method of claim 18, characterized in that the two sets of shutters are separated from the same blank before forming the two corresponding modules. 20. Method according to one of claims 18 and 19, characterized in that one rotates 180 ° of one or more modules before the transfer. 21. Method according to any one of claims 17 to 19, characterized in that the shifts the modules by suction and through a set of cams and pulleys. 22. Machine (130) for automatic manufacture of corrugated cardboard crosspieces (91), for the compartmentalisation of boxes, comprising means (131) for storing at least one stack of blanks (133), namely a first stack consisting of identical first blanks each formed by several articulated flaps which, by folding, are capable of forming a part of the compartments, characterized in that the blank comprising at least a first set of flaps, namely a first substantially rectangular flap or square, connected on one side by a first fold line to a second substantially square or rectangular flap, said second flap having a first locking lug located at the outer end of its side adjacent to the first fold line, 20 a third central flap connected to said first flap by a second fold line adjacent to the first fold line and located on the side corresponding to the ergo t, substantially rectangular and provided with a first and a second locking tabs 25, and a fourth flap connected to said first flap by a third fold line adjacent to the second fold line, substantially rectangular, comprising a second lug of at its outer end on the side adjacent to the third folding line, the machine comprises means (136) for gripping by suction of at least a first set of the blank, means for forming a module by means of first flap in a cavity or by raising the second, third and fourth flaps to bring the blank volume, latch locking means in the tabs arranged to be opposite the volume once blank, thus forming said module, gripping means (140) of the module and means for transferring said module for insertion into a corresponding box. 23. Machine according to claim 22, characterized in that it comprises means for simultaneous formation of at least two brace modules from at least two sets of flaps and means for grouping said modules for transfer before insertion into the box. 24. Machine according to claim 23, characterized in that it comprises blade separation means (100) of the two sets of flaps from the same blank before forming the two corresponding modules. 25. Machine according to one of claims 23 and 24, characterized in that it comprises means for performing a rotation of 180 ° of one or more modules before the transfer comprising a pivoting movement of the first module and / or second module so as to bring the outer faces of the third flaps into contact with each other.