KR20130115267A - Blank made from a cardboard sheet, cross-bracing insert, method and machine for producing such a cross-bracing insert from such a blank - Google Patents

Abstract

The invention relates to a blank 1 made from a cardboard sheet for producing a cross bracing insert 2, and also a corresponding method, a machine and a cross bracing insert. The blank comprises one or more first sets of flaps, the first set suitable for forming the basis of the cross bracing insert and connected to the second flap, the first flap 3 being rectangular or square, two compartments A second flap 5 suitable for forming an intermediate wall therebetween and comprising a first locking projection 7 and substantially square or rectangular, connected to a first flap located on the side corresponding to the projection and having a cross bracing insert And a central third flap 10 having a first tongue 12 with holes arranged to engage the first projection to hold the blank assembled for manufacture.

Description

Blanks made of cardboard sheets, cross bracing inserts, methods and machines for making cross bracing inserts from such blanks BLANK}

FIELD OF THE INVENTION The present invention relates to blanks made of cardboard sheets for the manufacture of one or more cross-bracing inserts and for dividing the container into a plurality of compartments, wherein the blanks are folded to form part of the compartments. And a plurality of hinged flaps configured to.

The invention also relates to a method and machine for producing such cross bracing inserts and to a cross bracing insert obtained thereby.

The present invention is particularly important in the field of modularly packaging a bottle separated by such cross bracing inserts, but is not limited to such use.

In addition, the present invention is applicable to all kinds of products, such as round, square or encapsulated. By "modulatable" it is possible to provide for the modularization of a product and the grouping of a number of groups using the same kind of blanks. Thus it is possible to group three, six, twelve, fifteen bottles by placing the same blanks side by side, two, three, four, five.

Cross bracing inserts consisting of two walls intersecting in directions perpendicular to each other are already known. Generally, such cross bracing inserts are made from a plurality of cardboard blanks, which are provided with slots and are assembled to form a wall of the cross bracing insert.

However, such cross bracing inserts have drawbacks. It is essential to provide two or more different kinds of blanks, one for the longitudinal wall and the other for the lateral wall, which complicates manufacturing and assembly. And it is necessary to assemble the blanks together, which has drawbacks in terms of assembly time and assembly cost.

One-piece blanks are also known (European Patent Publication No. 0 332 538).

These blanks make it possible to avoid some of the shortcomings of multi-part cross bracing inserts, especially thanks to the bellows system, but the bellows system makes the thickness thicker and, due to its elasticity, the dimensions of the cross bracing inserts It becomes unstable.

Fragment blanks are also known which comprise a set of detachable hinged flaps and are made of sheet material. Each set is for forming an intermediate panel with a portion of the compartment of the cross bracing insert, which is connected to two sets of flaps and used to form the cross bracing insert after separation.

However, such blanks have been found to be problematic in assembly and are relatively complicated to use.

All of these blanks are structurally designed and dimensioned to package a fixed number of products from the outset. In other words, these blanks are not modular.

The present invention aims at providing a blank, a manufacturing method, a manufacturing machine and a cross bracing insert, which makes it particularly possible to transport containers, in particular glassware containers, in a corrugated cardboard box without damage and in a modular way. More in line with the practical requirements than previously known. Using the same blank of the present invention it is possible to protect various numbers of product groups, for example two to forty eight product groups in a modular way.

That is, depending on the number of products grouped within the corresponding box selected, one or more basic modules of the same type for a given blank type, of a particular section, height and shape, whether the products are circular or rectangular in sections, It is possible to insert with a separating surface.

Thus, for certain product types, the present invention allows for so many different grouped combinations, while only a limited inventory of cardboard blanks is required.

For example, depending on the selected base module, corresponding to two bottles, three bottles, four bottles, five bottles or six bottles, each of eight compartments or cavities, fifteen cavities, twenty cavities, twenty By creating up to five cavities, thirty cavities, etc., it is possible to provide a count that is a multiple of these numbers.

Thanks to the concept of this basic module, which can be reused side by side, in parallel or in turn, with or without separating sheets, the possibilities of cross bracing boxes vary greatly within the optimized cost, especially thanks to this standardization. .

To this end, the present invention essentially proposes a cardboard sheet blank to produce at least one cross bracing insert configured to divide a container into a plurality of compartments, the blanks being folded to form part of the compartments. And a hinged flap, and including one or more first sets of flaps. The first set comprises a rectangular or square first flap, configured to form a bottom of the cross bracing insert, and connected at one side to a second square that is substantially square or rectangular by a first fold line; The second flap is configured to form an intermediate wall between the two compartments and includes a first locking tab located at an outer end of the side adjacent the first fold line. A substantially rectangular central third flap is connected to the first flap by a second fold line adjacent to the first fold line and perpendicular to the first fold line, and is located on the side corresponding to the tab and cross-bracing And a first tongue having an opening therein and configured to interlock with the first tab to maintain the shape of the blank for making the insert.

Advantageous embodiments employ one or more of the following configurations.

The longitudinal dimension or length l of the third flap is equal to or greater than the sum of the length l ₁ of the first flap and the length l ₂ of the second flap.

The first set of flaps comprises a fourth flap connected to the first flap by a third fold line at the opposite side of the second flap, the fourth flap being substantially square or rectangular, between two compartments A second locking tab configured to form an intermediate wall at the outer end of the side adjacent to the third fold line, wherein the third flap is second to maintain the shape of the blank to manufacture the cross bracing insert And a second tongue configured to interlock with the tab and having an opening therein.

The longitudinal dimension or length L of the third flap is equal to or greater than the sum L 'of the lengths of the first flap, the second flap and the fourth flap.

The longitudinal dimension or length L of the third flap is less than the sum L 'of the lengths of the first flap, the second flap and the fourth flap.

The overall transverse dimension or width l ' ₂ of the second flap is greater than the width l' ₁ of the first flap.

The second flap, the third flap and / or the fourth flap have a side edge comprising a portion which is inclined towards the first flap.

The blank comprises at least one second set of flaps, the same as the first set of flaps and connected to the outer edge of the third set of flaps by the seam configured to be cut.

The blank comprises at least one identical third set of flaps, connected with one of the two sets by a seam configured to be cut.

The tongue or tongues are located at the outer edge of the third flap.

The tongue or tongues are located in the area of the third flap.

Each second flap and fourth flap respectively comprise, on opposite sides of the first fold line and the third fold line, a notch for fastening the separation sheet when the blank is deployed.

The third flap comprises a central notch at the outer edge of the opposite side of the first flap for fastening the separating sheet when deploying the blank.

The invention also relates to a set of blanks, comprising one or more blanks of the kind described above having a locking notch, further comprising a separating sheet configured to engage the corresponding set of notches.

The invention further proposes a cross bracing insert obtained using the blank configurations described above. The cross bracing insert advantageously comprises two or more head-to-tail sets of flaps.

The present invention further proposes a method for automatically producing a corrugated cardboard sheet cross bracing insert for the spatial separation of boxes from one or more stacks of the same blanks of the kind described above.

The present invention relates to a manufacturing method for automatically manufacturing a corrugated cardboard sheet cross bracing insert for space division of a box, from one or more stacks of identical blanks, each blank being configured to be folded to form part of a compartment. And a plurality of hinged flaps, and comprising one or more first sets of flaps. That is, a rectangular or square first flap is connected at one side to a second square that is substantially square or rectangular by a first fold line. The second flap includes a first locking tab located on an outer side adjacent the first fold line. The substantially rectangular central third flap is connected to the first flap by a second fold line adjacent to the first fold line, is located on the side corresponding to the tab, and has a first locking tongue and a second locking tongue. . The substantially rectangular fourth flap is connected to the first flap by a third fold line adjacent to the second fold line and includes a second locking tab located at an outer end of the side adjacent to the third fold line. In the method, the bottom of the cross bracing insert module is formed by lifting the second flap, the third flap and the fourth flap to develop the blank and / or pushing the first flap into the cavity using a piston. The tabs and tongues are configured to face each other when the blank is deployed to form the module. Lift and move the module to insert it into the corresponding box.

Two or more cross bracing insert modules are advantageously constructed simultaneously from two or more sets of flaps and grouped for movement prior to insertion into the box.

In one advantageous embodiment, two sets of flaps are separated from one blank before forming two corresponding modules.

At least one module is advantageously rotated 180 ° before movement.

In another advantageous embodiment, the modules are adsorbed and moved by means of a cam and a set of pulleys.

The present invention also proposes a machine for performing the above-described method.

Further proposed is a machine for the automatic manufacture of corrugated cardboard sheet cross bracing inserts for space separation of boxes, comprising means for storing one or more stacks of blanks, ie the first stack consists of identical first blanks. Wherein each of the first blanks includes a plurality of hinged flaps configured to be folded to form a portion of the compartment, the first blanks comprising one or more first sets of flaps. That is, a first substantially flap or square flap is connected to a second flap that is substantially square or rectangular by a first fold line at one side, the second flap at an outer end of the side adjacent to the first fold line. And a first locking tab positioned. The substantially rectangular central third flap is connected to the first flap by a second fold line adjacent to the first fold line, is located on the side corresponding to the tab, and has a first locking tongue and a second locking tongue. . The substantially rectangular fourth flap is connected to the first flap by a third fold line adjacent to the second fold line and includes a second locking tab located at an outer end of the side adjacent to the third fold line. The machine includes suction means for retaining one or more first sets of blanks and a second flap, a third flap and a fourth flap to develop the blank, or use a piston to push the first flap into the cavity. Means for forming a module, means for fastening tabs and tongues facing each other when the blank is deployed to form a module, means for holding the module, and moving the module for insertion into a corresponding box Means for;

The machine advantageously comprises means for simultaneously forming two or more cross bracing insert modules from two or more sets of flaps and means for grouping the modules for movement before being inserted into a box.

In another advantageous embodiment the machine comprises means for separating two sets of flaps from one blank by cutter blade means before forming the corresponding two modules.

The machine also advantageously comprises means for rotating the at least one module 180 ° prior to movement, which includes the pivotal movement of the first and / or second module to bring the outer surfaces of the third flap into contact with each other.

The invention will be better understood upon reading the following detailed description of the examples provided by the non-limiting example method. For details, see the accompanying drawings.

1 shows, in plan view, a blank of a first embodiment of the invention, configured to form two compartments.
FIG. 2 is a perspective view of a basic cross bracing insert or module obtained from the blank of FIG. 1. FIG.
3 is a plan view of a blank of a second embodiment of the present invention, configured to form three compartments.
FIG. 3A shows an example of producing a blank with two sets of flaps consistent with the embodiment of FIG. 3 from one cardboard sheet by cutting.
4 is a perspective view of a basic cross bracing insert or module obtained from the blank of FIG. 3.
4a, 4b, 4c and 4d show in perspective view an assembly of two or three cross bracing inserts according to claim 4. In particular, FIGS. 4C and 4D show the assembly of a cross bracing insert pair after one cross bracing insert has been redirected to be located inside a package having eight sides.
5 and 5a show in plan view a set of blanks of one embodiment of the invention, including a blank for a separate or intermediate sheet (FIG. 5 a) and a base module (FIG. 5) of a third embodiment of the invention.
6 is a perspective view of the blank of FIG. 5 when assembled into a base module.
6A is a perspective view of the basic module of FIG. 6 after the intermediate sheet of FIG. 5A has been inserted to form a cross bracing insert having six compartments.
6B, 6C and 6D show cross bracing inserts which form a compartment with a plurality of compartments in a box with four sides, prior to introduction of the product into the box (FIG. 6C) and after introduction (FIG. 6D). A set of two modules is shown in perspective view, which makes it possible and has intermediate sheets as described with reference to FIG. 6A.
Figure 7 shows a blank of a fourth embodiment of the invention, and Figure 7a shows an intermediate sheet that can be used with such blanks.
8 and 8A show a set of cross bracing inserts obtained from the blanks of FIGS. 7 and 7A and creating twenty four storage locations.
9, 10 and 11 have four cells (FIG. 9) with one separating sheet, five cells (FIG. 10) with two separating sheets, six cells (FIG. 11) with three separating sheets, Several cross-bracing inserts in accordance with an embodiment of the present invention are shown schematically in plan view and in the above case where the modules are combined, for example, 36 bottles can be stored.
12A and 12B are top views of a cardboard sheet showing cutouts of blanks corresponding to two embodiments of the present invention for each set, one set having four sets of parallel flaps or modules ( 12A), one set has two pairs of two modules arranged head-to-tail (FIG. 12B).
13 illustrates steps A through K of a method of forming cross bracing inserts according to an embodiment of the present invention described in greater detail.
14A, 14B, 14C and 14D show the main steps of the method of FIG. 13 in a side perspective view.
15A and 15B show two cross bracing inserts obtained with a box with four walls or eight walls.
16 is a schematic plan view of a machine according to an embodiment of the present invention.
17 is a partial perspective view of the machine according to the embodiment of FIG. 16, showing the means for forming the modules.
18 is a second partial perspective view of the machine of FIG. 17 showing the means for moving the blanks to the forming station.

Later in this specification, the same reference numerals will be used to designate the same components or similar components.

FIG. 1 shows a blank 1 for producing the cross bracing insert of FIG. 2, which is made of cardboard sheet material, for example a corrugated cardboard of 3 mm thickness.

The blank 1 is configured to form the bottom of the cross bracing insert and is connected by a first fold line 4 to a substantially rectangular second flap 5 at one side, between the two compartments 6. And a square first flap 3, configured to form an intermediate wall at.

The second flap 5 comprises a first locking tab 7 located at the outer end of the side 9 adjacent to the first fold line 4.

The blank 1 is connected to the first flap by a second fold line 11 adjacent to the first fold line and perpendicular to the first fold line, and has a third flap 10 positioned on the side corresponding to the tab. It includes more. The third flap 10 is substantially rectangular and includes a first tongue comprising a rectangular orifice 13 formed in a rectangular opening 14 formed in the center of the outer edge of the third flap opposite the first flap ( 12).

The tongue 12 is connected to the rest of the third flap 10 at the bottom of the opening 14 by a fold line 15 in which the orifice 13 is partially overlaid.

The tab 7 is made substantially on its own side 9 of the second flap 5, which is located side by side with the third flap 10 and is formed for example at the corner of the second flap 5, substantially. It constitutes one of the corners of the opening 16 which is square.

This opening receives the tongue or more precisely the end 17 of the tongue, which is also fastened by a small notch 18 formed at the corner of the opening 16 adjacent the tab 7 at the upper periphery of the tongue.

Finally, the third flap 10 has an overall longitudinal dimension or length l, the length l being greater than the sum of the length l ₁ of the first flap and the length l ₂ of the second flap. , For example, greater than one tenth of the length l.

The third flap 10 has a right angle with the outer periphery 20 of the flap at the top, and includes a side 19 which is inclined toward the fold line at the bottom, ie at the same side as the fold line 11. Thus, corners are formed that can facilitate insertion into the package.

In the same way, the side 21 of the second flap 5, which is located on the opposite side of the tab 7 with respect to the flap, has a first portion 22 perpendicular to the outer side edge 23 of the second flap; It is formed of a second portion 24 that is inclined toward the first fold line 4, and thus also has an inclined shape and further facilitates the introduction for inserting the cross bracing insert into the box.

The dimensions of each of these various flaps are the length l for the third flap, which becomes smaller at the bottom, for example 0.8 l.

As such the first flap is a square, for example equal in length and width to l ₁ , and the second flap as such has a length l ₂ equal to the width of the third flap and is half the length of the third flap, ie has the largest overall width equal to l / 2.

A blank 25 of a second embodiment of the present invention, configured to form the cross bracing insert module 26 shown in FIG. 4, is shown in FIG. 3.

The blank 25 is for example rectangular and is configured to form the bottom of the cross bracing insert 26 and is of a kind of second flap of the kind described with reference to FIG. 1 on one side by the first fold line 4. And a flap 27, which is connected to 5).

The blank comprises a fourth flap 29 connected with the first flap 27 by a third fold line 30, symmetrically about the central axis 28 of the lateral symmetry of the blank on the other side opposite it; The fourth flap is thus also substantially square or rectangular, like the second flap 4, and is configured to form a second intermediate wall 29 between the two compartments 6.

The fourth flap 29 comprises a second tab 31 which is symmetrical with the first tab 7 of the second flap 5 about the central axis 28 of symmetry.

The second locking tab 31 is located at the outer end 32 of the side 33 adjacent the third fold line 30.

The blank 25 further comprises a substantially rectangular central third flap 34 having two identical tongues 35 comprising openings, which tongues are described with reference to FIG. 1. Is of the same type and is configured to interlock with the first tab and the second tab, while received in the opening 18 of the first flap and the opening 36 of the third flap for manufacturing the cross bracing insert 26. .

A corrugated cardboard sheet for making blanks 25, 25 ′ for making the cross bracing insert of FIG. 4 is shown in FIG. 3A. Two side-by-side cross bracing inserts 26, 26 ′ are shown in FIG. 4A, and the cross bracing insert 26 ′ is the edge 21 and the fourth flap of the second flap 5 of the cross bracing insert 26. It lies at edge 37 of 29.

FIG. 4B shows by itself three cross bracing inserts 26, 26 ′, 26 ″. The cross bracing insert 26 '' can be turned to feature compartments 38 that open outwardly on both sides.

In FIG. 4C, two sets of facing bracing inserts 26, 26 ′ are shown with two eight sided boxes of known type before the cross bracing insert 26 ′ turns. FIG. 4D shows the cross bracing inserts placed inside the box after the cross bracing inserts 26 'are redirected to enable positioning of the openings 38 outward, with the cut corner 40 at the corner. To support the bottle shape (see FIG. 4D).

5 shows a blank 42 of a third embodiment of the present invention.

The blank is connected to the second flap 45 at one side by a first fold line 44 and to the fourth flap 47 at the opposite side by a third fold line 46. And a fourth flap symmetrical with the first flap about the axis of symmetry 48 of the blank, the axis being perpendicular to the transverse dimensions of the first flap, the second flap and the fourth flap.

The blank 42 further comprises a substantially rectangular third main flap 49 having a side edge 50 that slopes toward the first flap at the same side as the first flap, the third main flap being the first one. It is connected to the first flap by a second fold line 51 at the side adjacent to the fold line 44 and the third fold line 46. The third main flap has a total length L that is less than the total length L 'of the first flap, second flap and fourth flap arrangement.

Each second flap and the fourth flap are provided with notches 52 that are symmetrical with respect to the central axis 48, which notches are straight along with the first fold line 44 and the third fold line 46. Is placed.

More precisely, these notches are formed by orifices 53 made in tongues 54 made in the opening 55 of the third flap, for example a rectangular opening. When lifting the tongue so that it is perpendicular to the flap 49, the height at which this notch is located is of the tab or hook 56 belonging to the first flap 45 and the fourth flap 47, which are located next to the third flap, respectively. Corresponds to the height.

These hooks are configured to clip to the opening 53 when the tongue is folded transversely.

More precisely, the hooks 56 are formed outwardly at the corner 58 of the corresponding cardboard flap by the appropriate opening 57 of the cardboard.

Furthermore, when the cross bracing insert 61 is deployed as described with reference to FIG. 6, the small groove 59 under the opening makes it possible to clip and secure the end 60 of the tongue 54.

More specifically in the embodiment described with reference to FIG. 5, each of the first and fourth flaps is perpendicular to the fold lines 44, 46 and made at or substantially at the center of the outer edge 63 of the flaps. A notch 62 further comprising notches 62 configured to engage the separating sheet 64 (see FIG. 5A), wherein the separating sheet is configured to be inserted into the notches 62 when the sheet is inserted; 65). For example, the notches 62, 65 are connected at the outer ends of the V-shaped openings, which enable to improve the introduction and lead one to the other before they are fastened.

When these assemblies 61, 64; 61 ′, 64 ′ are outside the box (FIG. 6B) and inside the rectangular box 67, before introduction of the separating sheets 64, 64 ′ (FIG. 6C). And utilization after filling the rectangular shaped product 68 is shown in FIGS. 6B, 6C and 6D.

In the embodiments of FIGS. 6, 6A, 6B, 6C and 6D, in order to have a position which is open on the same side as the inner wall of the box 67, the sets of blanks 61, 64 are redirected to the arrows of FIG. 6B. As shown by 69, it is positioned head-to-tail with sets of blanks 61 ', 64'.

This is an example of grouping based on a module with three cells for a rectangular bottle, which makes it very simple and instantaneous to obtain a twelve cell cross bracing insert using two separate sheets.

Rectangular first flap 71, a second flap 72 and a fourth flap connected to the first flap by a first fold line and a third fold line on each side as described with reference to FIG. 3. Another embodiment of a blank 70 is provided in FIG. 7, with tabs 73 of the kind described with reference to the same figure.

The central third flap 74 itself comprises two tongues 35 in a manner similar to the flap 34 of FIG. 3.

The tongues in this embodiment are separated at the central transverse axis 28 of the package by, for example, a notch 75 connecting to a small slot 76 in the shape of a small hook.

In order to complete the cross bracing insert, this small slot or cutout located at the bottom of the notch 75 end makes it possible to improve the attachment of the separating sheet. Small slots are applied to the sheet 77 of FIG. 7A, which may be used, for example, in a series of five or six cross bracing inserts each obtained from the blank 70 of FIG. 7.

As such, this separation sheet is provided with notches 78 configured to engage the notches 75 of the blank of FIG. 7, and these notches are also provided with small hook-shaped cuts 76.

The cross bracing insert 79 obtained from several sets of blanks in FIG. 7 is shown in FIG. 8A. As shown in FIG. 8, the central separating sheet 77 is introduced from above, and the blanks are fastened together. The whole can then be inserted into a box of the appropriate size.

9, 10 and 11 are examples of groupings that can be obtained using a basic module having four cells (FIG. 9), five cells (FIG. 10), and six cells (FIG. 11) as described above. Shows.

Cross bracing inserts for twenty round bottles, starting from the module 80 corresponding to the blank of FIG. 7 with a central notch 75 and a separation sheet 77, utilize five modules and one separation sheet. Obtained.

Cross bracing inserts for thirty round bottles, starting from a module 81 with two notches 82 of the same kind as the notches 75, are for example six modules 81 and two separating sheets ( 77).

Finally, cross bracing for thirty-six round bottles, from a cross bracing insert 83 which is regularly distributed between tongues 35 and is provided with three notches 84 corresponding to the notches 82, 75. Insert 86 is obtained using six modules 83 and three separating sheets 77.

Two embodiments of sheets 90, 91 that enable to obtain blanks 25, 25 ′, 25 ″, 25 ′ ″ of the type described with reference to FIG. 3 are shown in FIGS. 12A and 12B. In the first case (sheet 90) the blanks are developed in turn to be cut by a flat cutting machine of a known kind, for example a flat cutter made by the Swiss company BOBST. In the second case (sheet 91) two successive blanks are symmetrical about the symmetrical transverse axis 92 and are located head-to-tail.

It is clear that these configurations will allow saving cardboard consumption.

The main steps of a method of manufacturing cross bracing inserts from modules of the kind described with reference to FIG. 12A are shown in FIGS. 13A-13K. The blanks forming the modules are grouped into sets, allowing two groups 101 of modules to be cut to the same width of the cardboard sheet. For example, the groups are connected together by attachment points that can be broken by pulling or shearing.

For example, without limiting the invention, we will select a group of four modules in accordance with FIG. 12A. Each cardboard blank comprising two to four modules connected together by a connection point is transported in a set, which are first separated by a metal cutting blade 100 and composed of two groups 101 of blanks, They are then configured to be separated from each other to form four rows of blanks 25, 25 ′, 25 ″, 25 ′ ″.

They are moved over module-shaping elements or shaping stations 103 (arrow 102).

This modular shaping element consists of a plurality of stations placed in parallel, the number of stations depending on the number of blanks required.

In the embodiment of Figure 13 there are four deployment stations. The first steps (step A, step B) make it possible to withdraw from the stack, cut in a known manner, and move 102 to shaping station 103. The blanks may be separated during the movement or at the next shaping station (step C), for example at the moving head.

Step D is a shaping step that pushes the piston into the cavity by the piston and / or lifts the bending fingers 104 vertically.

The blank then begins to take the folded configuration.

If the blanks are in the cross bracing insert position (step E), step F is performed to fasten tongues 105 by moving fingers 106. The moving fingers are then withdrawn in the G stage, cross bracing inserts are formed in this stage, and tongues are inserted into the tabs 107.

In the embodiment described herein, step H is performed to rotate one or more modules 25, 25 ′ 180 ° (arrow 108). This rotating step is carried out, for example, by an absorber type holding means configured to mechanically pivot 180 ° about the axis.

Then step J is performed. The purpose of step J is to obtain a symmetrical cross bracing insert 109 for insertion into the box 110 (arrow 111), which also avoids the vertical end wall of the last module touching the wall of the box. To do that.

Cross bracing inserts are then introduced into box 110 to obtain a box 112 with cross bracing inserts in step K.

To better illustrate the important steps for the manufacturing method of the present invention, these steps are shown in perspective and side views in FIGS. 14A-14D.

These important steps correspond to steps C, D, F and J described above with reference to FIG.

The blanks 25, 25 ′ lifted in a known manner by the adsorption mechanism are located above the shaping elements 103, 103 ′.

This adsorption mechanism includes a central portion 113, 113 ′ in the form of a well (see FIG. 14A).

The piston shape 114 with the pneumatically actuated pusher plate 115 is for example located at the bottom 27 of the blank 25 and its shape is complementary / complementary to the bottom of the blank, or more small.

For example, the plate here can be removed and modified to fit the dimensions of the lower part 27.

In FIG. 14B, the pusher plates are lowered and / or lowered to form the module, or the side fingers 104 are lifted to form the first side flaps 5 and 5 ', the fourth side flaps 29 and 29' and the third. Moving the flaps 34, 34 'to a vertical position forms a wall of cross bracing inserts.

In FIG. 14C, folding fingers (not shown) fold tongues 35 over tabs 7, 31 (arrow 117) to produce cross bracing inserts 26, 26 ′.

The piston / folding assembly 118 can then be deactivated / deactivated or have access to the means 119 for lifting and holding the cross bracing inserts 26, 26 ′ and moving them towards boxes containing the cross bracing inserts. To be moved.

15a and 15b two embodiments of boxes with cross bracing inserts according to the invention are shown.

In the first embodiment (FIG. 15A) the cross bracing inserts 120 are inserted without rotating any of the modules of any of the modules 26, 26 ′, 26 ″, 26 ′ ″ 180 ° and are thus rectangular. It can be fitted to the box 121.

In the second embodiment (FIG. 15B) one or more components 26 can be rotated to obtain openings 38 on each side of the cross bracing insert 122, which in particular have cut corners 121. It can be used for the box 123 having.

16 shows a machine 130 for automatically making cross bracing inserts from a corrugated cardboard sheet 91 for space separation of boxes, separated by a cutting blade, which shows a stack of blanks 133. Means for storing one or more.

In addition, a magazine 134 is provided for the vertical separation sheets 135.

The blanks are for example blanks as described with reference to FIG. 5.

The machine 130 employs an adsorber 137 (see FIG. 18), for example, which adsorbs and retains one or more first sets of blanks 138 (FIG. 18), of known type means 136 (FIG. 16). (Schematically depicted by a dashed-dotted line). In addition, the machine uses piston action to shape and / or shape the module at the first flap, or to lift and / or move the fingers 103, 104 around the cavity 113 to lift the second flap, the third flap and the fourth flap. Lifting means 139 (see FIG. 17).

Such means is a known configuration.

A component (not shown) for fastening tabs to opposing tongues when the blank is deployed includes, for example, small pistons for pushing the tongues and bending the tongues over the tabs.

A means 140 for lifting the modules 26 one by one, and inserting the modules into boxes (not shown) by a known method in the portion indicated by reference numeral 141 along the trajectory 142 and indicated by reference numeral 143. There is a moving means for discharging the box with the cross bracing insert.

17 also shows diagrammatically that the blanks 25, 25 ′, 25 ″, 25 ′ ″ reach, for example in sheet form 91. The blanks are positioned above the piston means 103 and placed on the guide rail 144 for lateral and transverse adjustment of the piston dimensions and the folded finger dimensions before being discharged.

18 overlaps the piston means by itself and in particular over the means 138 of the known design holding the blank, by placing the blanks over the wells by means of a cylinder, and subsequently shaped to discharge the blank towards the box. It shows a mechanical component that can move transversely in the Y, Z direction.

It goes without saying that the invention is not limited to the more specifically described embodiment, and it is clearer from the foregoing detailed description. Conversely, all variants of the invention, in particular other cases for attaching the second and fourth flaps to the third flap are used.

Claims (25)

A cardboard sheet blank (1, 25, 42, 70) for manufacturing one or more cross bracing inserts (2, 26) configured to divide a container into a plurality of compartments (6), said blank being folded to A plurality of hinged flaps configured to form a portion, the first set comprising one or more first sets of flaps, wherein the first set comprises:
A rectangular or square article, configured to form the bottom of the cross bracing insert and connected at one side to a substantially square or rectangular second flap 5, 45, 72 by a first fold line 4, 44 A flap 3, 27, 43, 71, wherein the second flap is configured to form an intermediate wall between two compartments 6 and a side 9 adjacent to the first fold line 4. A first locking tab (7, 56) located at the outer end of the
A first tab connected to the first flap by a second fold line 11, 51 adjacent to the first fold line, positioned on a side corresponding to the tab, to maintain the shape of the blank to produce a cross bracing insert Cardboard comprising a substantially rectangular central third flap (10, 34, 47, 74) having first tongues (12, 35) configured to interlock with and having openings therein; Sheet blanks. The method of claim 1, wherein the sum of the length (l ₂₎ of the third flap 10, the longitudinal dimension or length (l), the first flap (3), the length (l ₁₎ and the second flap 5 of The cardboard sheet material blank characterized by the above. The cardboard sheet material blank 25 according to claim 1 or 2, wherein the cardboard sheet material blank 25 is connected to the first flap by a third fold line 30 at an opposite side of the second flap 5, 45, 72. And four fourth flaps (29, 47, 73), wherein the fourth flap is substantially square or rectangular, and is configured to form an intermediate wall between the two compartments, and the third fold line (30) Second locking tabs 31, 56 located at the outer end 32 of the side 33 adjacent to the third flap 34 to maintain the shape of the blank to produce a cross bracing insert. And a second tongue (35) configured to interlock with the second tab (31) and having an opening therein. The longitudinal dimension or length L of the 3rd flap 74 is a sum L 'of the length of the 1st flap 71, the 2nd flap 72, and the 3rd flap 73. The cardboard sheet material blank characterized by being smaller than). The length L of the 3rd flap 34 is a sum L 'of the length of the 1st flap 27, the 2nd flap 5, and the 4th flap 29 or more. The cardboard sheet material blank made. 6. The overall transverse dimension or width l ′ _{2 of} the second flaps 5, 45, 72 is the width of the first flaps 3, 43, 71. 7. A cardboard sheet blank, characterized in that greater than (l ' ₁ ). The second flap 5, 45, 72, the third flap and / or the fourth flap 29, 47, 73 is inclined toward the first flap according to claim 1. A cardboard sheet blank, characterized in that it has a side edge comprising a portion. 8. The at least one second set of flaps 25 ′, 25 ″ according to any one of claims 1 to 7, which is connected to the outer edge of the first set of third flaps by a seam configured to be cut. The cardboard sheet material blank characterized by including. The cardboard sheet blank according to claim 8, characterized in that it comprises at least one third set of flaps, which is connected with one of the two sets by a seam configured to be cut. 10. The cardboard sheet blank according to claim 1, wherein the tongue or tongues (35) are located at the outer edge of the third flap. 11. 11. The cardboard sheet blank according to any one of the preceding claims, characterized in that the tongue or tongues are located in the region of the third flap (49). 12. The notch according to any one of claims 4 to 11, wherein the second flap and the fourth flap are on opposite sides of the first fold line and the third fold line, respectively, to fasten the separating sheet 64 when the blank is deployed. The cardboard sheet material blank characterized by including 65. 12. The third flap 74 according to any one of the preceding claims, wherein the third flap 74 is at the outer edge of the opposite side of the first flap 71, the center for fastening the separating sheet 77 when developing the blank. A cardboard sheet blank, characterized in that it comprises a notch (75). A blank set, characterized in that it further comprises one or more separating sheets 64, 77 comprising at least one blank according to claim 12 or 13 and configured to engage the corresponding set of notches. . Cross bracing inserts 26, 26 ′, 26 ″, characterized by being obtained by placing two or more sets of flaps in the blank according to any one of claims 1 to 14 side by side. Bracing inserts. The cross bracing insert of claim 15, comprising at least two head-to-tail sets of flaps. A manufacturing method for automatically producing corrugated cardboard sheet cross bracing inserts (2, 26, 26 ', 26'', ...) for space separation of boxes from one or more stacks of identical blanks,
Each blank 1, 25, 42, 70 includes a plurality of hinged flaps configured to be folded to form part of a compartment, characterized in that it comprises at least one first set of flaps, which at one side A rectangular or square first flap 3, 27, 43, 71 connected by a first fold line 4, 44 to a substantially square or rectangular second flap 5, 45, 72,
The second flap includes a first locking tab located at an outer end of the side adjacent to the first fold line,
The first locking tongue 12 and the second locking tongue 35, 31, which are connected to the first flap by second fold lines 11, 51 adjacent to the first fold line, are located on the sides corresponding to the tabs. A substantially rectangular central third flap (10, 34, 49, 74),
Substantially rectangular, connected to the first flap by a third fold line adjacent to a second fold line and including second locking tabs 31, 56 located at an outer end of the side adjacent to the third fold line Including fourth flaps 29, 47, 73,
In the method, the bottom of the cross bracing insert module is formed by lifting the second flap, the third flap and the fourth flap to develop the blank, or by pushing the first flap into the cavity using a piston,
Form the module by fastening tabs and tongues that face each other when the blank is deployed,
Lifting and moving the module for insertion into a corresponding box. The method of claim 17, wherein the two or more cross bracing insert modules are constructed simultaneously from two or more sets of flaps and grouped for movement prior to insertion into the box. The method of claim 18, wherein before forming the corresponding two modules, two sets of flaps are separated from one blank. The method of claim 18 or 19, wherein the one or more modules are rotated 180 ° before movement. 20. The method according to claim 17, wherein the modules are adsorbed and moved by means of a cam and pulley set. A machine 130 for automatically manufacturing a corrugated cardboard sheet cross-bracing insert 91 for spatial separation of boxes, comprising a means 131 for storing one or more stacks 133 of blanks, the first stack Is comprised of identical first blanks, each of the first blanks comprising a plurality of hinged flaps configured to be folded to form part of a compartment, the first blank comprising one or more first sets of flaps, A first, substantially rectangular or square flap connected at one side to a second, substantially square or rectangular flap by a first fold line;
The second flap includes a first locking tab located at an outer end of the side adjacent to the first fold line,
A substantially rectangular central third flap, connected to the first flap by a second fold line adjacent to the first fold line, located on the side corresponding to the tab and having a first locking tongue and a second locking tongue and,
A fourth rectangular flap, the second flap being connected to the first flap by a third fold line adjacent to a second fold line and including a second locking tab located at an outer end of the side adjacent to the third fold line. and,
The machine includes suction means 136 for retaining one or more first sets of blanks, and lifting the second flap, the third flap and the fourth flap to deploy the blank or using a piston to lift the first flap. Means for forming a module by pushing it into the cavity, means for fastening tabs and tongues facing each other when the blank is deployed to form the module, means for retaining the module 140, and inserting in a corresponding box And means for moving the module to move the module. 23. The method of claim 22, comprising means for simultaneously forming two or more cross bracing insert modules from two or more sets of flaps, and means for grouping the modules for movement before being inserted into a box. Machine. 24. The machine according to claim 23, comprising means for separating two sets of flaps from one blank by means of cutting blades (100) before forming the two corresponding modules. 25. The device of claim 23 or 24, comprising means for rotating the at least one module 180 ° prior to movement, which includes pivotal movement of the first module and / or the second module to each other. Machine, characterized in that the contact.

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