FR3038887A1 - PACKING BOX FOLDING MACHINE AND ADAPTIVE PACKING BOX - Google Patents

Abstract

Bottle-packing machine in a carton having a bottom, two longitudinal sides, two side faces and a top, for which the carton is made from a cut blank (1) having a rectangular back (10) of surface adapted to make a bottom of the carton adapted to receive the bottles in flat, two large flaps (11a, 11b) extending outwardly of the rectangular back from long sides of the rectangular back and each having a first training portion a longitudinal face (13a, 13b) of the carton connected to the back by a first fold line (101) and a second portion (14a, 14b) forming a half wall of the top of the carton connected to the first part by a second fold line (102) and two small flaps (12a, 12b) extending outwardly from short sides of the rectangular back, the small flaps (12a, 12b) having a first wall member (15a, 15b), connected to the back by a t third fold line (103), and a second wall member (15'a, 15'b) connected by a fourth fold line (104) to the first wall member, said fourth fold line being adapted to provide a free edge of double walls (15a, 15b) of the lateral faces of the carton by folding the second element on the first element for which the machine comprises movable means for folding small sides of the carton.

Description

PACKING BOX FOLDING MACHINE AND ADAPTIVE PACKING BOX

Field of the invention

The present invention relates to the packaging of bottles and proposes a folding machine of such a packaging and the corresponding packaging.

Technological background

Bottle packaging cartons must be robust and simple to handle when bottling bottles.

JP 2000-233456 A discloses a semi-automatic machine for forming a carton made from a cut blank having a rectangular surface back adapted to provide a bottom of the carton, two large flaps extending outwardly of the rectangular back from long sides of the rectangular back and each having a first forming portion of a longitudinal side of the carton connected to the back by a first fold line and a second portion forming a longitudinal double wall connected to the first part by a second fold line and two small flaps extending outwardly from short sides of the rectangular back, the small flaps having a side wall member, connected to the back by a third fold line, and an element upper wall, connected by a fourth fold line to the first element, for which the large flaps comprise reinforcing tabs, extending the This first part of the large flaps and adapted to fold against the lateral faces of the carton and cooperate with these faces to maintain vertical.

The semi-automatic machine has a template for receiving the blank and in which the depression of the carton forms the carton. The template is provided with progressive means for forming the cardboard and in particular front and rear means for lifting front and rear panels of the cardboard, and means for right and left lifting right and left panels of the cardboard and means for bending the legs reinforcing cardboard.

Document FR 2 947 532 A1 in the name of the applicant describes a device for packing bottles in flat form, comprising a cardboard and a spacer. The carton is made from a cut blank forming a rectangular surface back adapted to receive the bottles flat, two large flaps extending outward from the first sides of the rectangular back and two small flaps extending outward from second sides of the rectangular back. The device comprises a carton forming frame provided with sequential forming means adapted to successively position the carton in a position for receiving the bottles and then a position of installation of the interlayer further provided with progressive means for closing the half-walls. from the top of the carton, arranged at the outlet of the frame on a lateral side of the frame. The carton once folded out longitudinally of the frame by said side of the frame.

Similarly, document FR 3,009,286 describes a longitudinal output folding frame for a packaging carton.

In the context of the realization of crates for bottles is sought aesthetics and rigidity even more important cardboard and ease of packaging bottles increased.

Brief description of the invention

The purpose of the present invention is to propose a packaging device that meets these constraints and proposes a flat bottling machine in a carton comprising a bottom, two longitudinal faces, two lateral faces and a top, produced from a cut blank having a rectangular surface back adapted to provide a bottom of the carton adapted to receive the bottles flat, two large flaps extending outwardly of the rectangular back from long sides of the rectangular back and each having a first formation portion of a longitudinal side of the carton connected to the back by a first fold line and a second forming portion of a half wall of the top of the carton connected to the first portion by a second fold line and two small flaps extending outward from short sides of the rectangular back, the small flaps having a first wall element, connected on the back by a third fold line, and a second wall member, connected by a fourth fold line to the first wall member, said fourth fold line being adapted to provide a free edge of double walls of the side faces of the carton by folding the second element on the first element, for which the large flaps comprise tabs extending said first portion of the large flaps and adapted to fold between double walls of the side faces of the carton. The machine comprises according to the invention a frame comprising a table for receiving and forming the cardboard provided with sequential forming means made by means of forming guides adapted to form the longitudinal sides of the cardboard by a depression of the blank in the frame, for which the frame comprises mobile means for forming the lateral faces and folding of the second elements of the small flaps towards the inside of the carton to form the double walls of the lateral faces of the carton, said movable forming means comprising jaws carrying upper pusher forming elements of said free edge of double walls and comprising at least a first lower pusher element bearing against said first wall element small flaps or said second wall element of said small flaps, said pusher elements being rotatably mounted on axes, arranged on either side of a light and parallel to the lateral faces of the cardboard.

Advantageously, at least one second upper pusher element bears against said second wall element in a first unfolded lateral wall position, a rotation of the jaw actuating said second upper pusher element to fold the second wall element of the small flaps on the first wall element small flaps and form the double wall whose free edge fits into the light.

According to a first embodiment, at least one of the forming means is mounted on a first jack adapted to move it between a forming position of a lateral face of the carton and a retracted position adapted to the release of the cardboard by translation on Table.

Advantageously, the jaw carrying the upper pusher element is rotatable about the lower pusher element under the action of a second cylinder.

Said mobile forming means may in particular be movable under the action of a third jack inclined between an inclined pre-folding position of the side walls of the carton and a folding position of the lateral faces of the carton.

Advantageously, the jaws carrying the upper pushing elements are movable in inclination between a rear inclined positon of pre-folding of the side walls of the carton and an inclined position before folding of the lateral faces of the carton.

According to a particular embodiment, the jaws carrying the upper thrust elements are mounted on the bearing axes of the lower thrust elements.

According to a particular embodiment, the upper pushing elements combine fingers and rollers.

Advantageously, the bearing axes of the lower elements and on which the jaws are mounted are rotatable under the action of drive means.

Said drive means are optionally synchronized.

They can in particular be controlled by an actuating cylinder through a device connecting rod / rockers.

According to a particular embodiment, the driving means are sprocket means connected by belts.

The bearing axes of the lower pusher elements and the pusher elements are advantageously arranged relative to the table at a height greater than the height of the formed board. The invention further relates to a method of packaging bottles in a carton by means of a machine according to the invention, which comprises a step of laying the carton flat on the frame and a step of driving the carton into the carton. constructed so as to preform the longitudinal sides of the carton, a step of folding the small flaps to form the double walls with said movable means, a step of placing the bottles (50) in the carton, a step of closing the large flaps and a step of translating the cardboard on the table.

Advantageously, the step of translating the carton comprises a step of sticking an adhesive tape on the large flaps of the top of the carton.

According to an advantageous embodiment, the step of driving the cardboard comprises successively: a folding of the tabs of the large flaps in a direction perpendicular to the plane of the large flaps; - Folding the large flaps along the first fold line to form the longitudinal sides of the carton and bring the legs along the third fold line of the small flaps; - Folding the small flaps along the third fold line.

BRIEF DESCRIPTION OF THE DRAWINGS Other characteristics and advantages of the invention will become apparent on reading the following description of a nonlimiting exemplary embodiment of the invention with reference to the drawings which represent:

In Figure 1: a carton blank of the invention in plan view flat;

In Figures 2A to 2D: steps in perspective of folding a blank on a frame of the invention; in FIG. 3: a perspective view of mobile forming means according to one embodiment of the invention; in Figure 4: a forming frame of a carton of the invention in perspective;

In Figs. 5A-5D, side views of operating steps of the moving means of Fig. 3;

In Figure 5E: a variant of the mobile forming means in a position equivalent to Figure 5A;

In Figure 6: an enlarged side view of a moving means according to the step of Figure 5C cardboard in position;

In Figure 7: a flat top view of a spacer according to one embodiment of the invention.

In Figures 8A, 8B, 8C: a variant of cardboard forming and boxing machine in perspective view respectively without cardboard, with flat blank and with cardboard being formed;

In FIG. 9: a semi-automatic folding device of the machine of FIG. 8;

In Figure 10: an enlarged view of a portion of the machine of Figure 8 in perspective.

DETAILED DESCRIPTION OF EMBODIMENTS OF THE INVENTION The invention relates to a device for packing bottles flat in a carton. The example shown is not limited to the packaging of 6 bottles flat in the carton. The cardboard for this is a cardboard with internal dimensions of 488x303x77 mm.

The carton is made from a blank cut as shown in Figure 1. To make a rigid cardboard, the blank is composed of 5 papers, an outer cover kraft, a fluted paper, a median paper, a corrugated paper, an inner cover paper. One or more of these papers may be recycled papers.

The carton once produced has a bottom, two longitudinal faces, two side faces and a top.

To do this, the cut blank 1 has a rectangular back surface 10 adapted to produce the bottom of the carton adapted to receive the bottles flat.

To achieve the longitudinal faces and the top, the blank has two large flaps 11a, 11b extending outwardly of the rectangular back from long sides of the rectangular back.

The large flaps each comprise a first portion forming a longitudinal face 13a, 13b of the cardboard connected to the back by a first fold line 101 and a second portion 14a, 14b forming a half wall of the top of the carton connected to the first part by a second fold line 102. The longitudinal faces and the top are made by two folding steps, the first raising the large flaps by folding the blank at the first fold lines 101 to achieve the longitudinal faces, the second folding the second portions 14a, 14b of the large flaps around the second fold line 102 to form the top of the carton.

To form the side faces of the carton, the blank has two small flaps 12a, 12b extending outwardly from short sides of the rectangular back.

The small flaps 12a, 12b having a first wall element 15a, 15b connected to the back by a third fold line 103, and a second wall element 15'a, 15'b connected by a fourth fold line 104 to the first wall element.

According to an important aspect of the invention, the fourth fold line folds the small flap to make the side faces of the cardboard double walls. The double walls of the side faces of the cardboard are obtained by folding the second wall element 15'a, 15'b on the first wall element 15a, 15b.

To stiffen the cardboard and the large flaps comprise tabs 16a, 16'a, 16b, 16'b extending the first portion of the large flaps forming the longitudinal sides of the cardboard. These tabs bend at 90 ° of the longitudinal faces and are housed between the double walls 15a, 15b, 15'a, 15'b of the side faces of the carton which increases the thickness of these faces.

The tabs 16a, 16a ', 16b, 16b' comprise according to the example tabs 17a, 17'a, 17b, 17'b extending perpendicular to the tabs in a direction in extension of the first wall elements of the small flaps. These tongues are adapted to fold between the double walls 15a, 15b of the side faces of the carton which adds further thickness to the short sides.

The fourth fold line 104 between the wall elements of the small flaps comprises two grooving threads 18, 18 'parallel to the short side of the rectangular back. These two grooving threads are parallel and spaced so that when folding small flaps a space receiving tabs and tabs is provided between the wall members 15a, 15'a and 15b, 15'b. These two grooving threads make it possible to make a double fold and to form between the folds a bearing edge of the external edges of the half walls at the free edge of the double walls.

The first grooving net 18 close to the back has a marking height greater than that of the second grooving net 18 'so that its folding takes place in priority. The bearing edge made by stacking the wall elements, tabs and tabs. It is a quadruple width of the thickness of the blank given by the sum of the thickness of the double wall, a tab and a tongue which makes for a blank of 2.3 mm a border width of support of about 9 mm given the thickness of the folds.

For glass bottles requiring additional protection and a separation of the bottles, an insert as shown in FIG. 6 is made from a cut blank 2 comprising a protective strip 2c provided with a first edge 2a and a second longitudinal edge 2b. The interlayer comprises a succession of foldable flaps 3, here 5 flaps intended to be positioned between the 6 bottles received in the carton.

The flaps extend in a general direction perpendicular to the length of the protective strip 2c and are connected to the first edge 2a by feet 4 having fold lines 5, 6. A first fold line 5 is made between the strip protection and the foot along a first line parallel to the first edge 2a. The second fold line made between the foot 4 and the flap 3 is perpendicular to said edge.

The flaps first fold at 90 ° to the feet 4 along the second fold line 6 and then the foot is folded by a fold along the first fold line 5 so that the flaps are positioned under the protective strip according to planes perpendicular to the plane of the protective strip.

To maintain the position of the shutters before insertion between the bottles, the protective strip on the bottles, the folding flaps are provided with lugs 8 for fastening the flaps on the second edge 2b of the protective strip after positioning flaps under the protection strip 2c.

The protective strip is of sufficient length and width to cover a central portion of the bottles perpendicular to said bottles and serves to protect the labels of these bottles when cutting an adhesive tape closing the top to proceed with the opening of the carton .

The direction of the flutes 202 is perpendicular to the elongation of the strip to increase the tear strength of the protective strip when cutting the adhesive tape. The invention further relates to a bottle-packing machine comprising a casing frame, a non-limiting example of which is generally shown in FIG. 4.

The frame comprises a table 31 for receiving and forming the cardboard provided with sequential forming means made by means of forming guides 32a, 32b, 32'a, 32'b, 34a, 34'a, 34b, 34'b, only the guides 32a, 32b and 34a, 34'a, 34b, 34'b being shown in Figure 4 for better visibility of the frame. These forming guides are adapted to form the longitudinal sides of the carton by a depression of the blank 1 in the frame.

First forming guide means 32a, 32b, 32'a, 32'b receive the flat cardboard as shown in Figure 2A on planar terminations. They comprise ramps and vertical sections that go during the depression of the carton in the frame raise the tabs 16 as shown in Figures 2B and 2C.

To form the longitudinal faces of the carton, the frame comprises the second guides 34a, 34'a, 34b, 34'b, realizing ramps of rounded shape whose gradual inclination achieves a flared opening for receiving the large flaps of the blank then the strongly inclined walls closing the large flaps. The guides, arranged under the long sides in Figure 2A will fold the longitudinal sides of the cardboard during the depression of the cardboard in the frame as shown in Figures 2C and 2D because of their spacing being gradually reduced laterally in their lower part.

Round cylindrical cylindrical rollers 39 are mounted on the frame on either side of the guides. These rollers, less laterally spaced apart that the guides 34 complete the folding of the longitudinal faces at the end of insertion of the carton into the frame. These rollers mounted for rotation about vertical axes also make it possible to guide the cardboard laterally when it is removed from the frame by sliding it on the table without the guides 34a, 34'a, 34b, 34'b having a rounded shape. do not rub against the longitudinal sides of the cardboard.

Returning to FIG. 4, the frame comprises movable means 33a, 33b for forming the lateral and folding faces of the second elements 15'a, 15'b small flaps towards the inside of the carton to form the double walls of the faces. side of the carton.

These mobile forming means shown alone in FIG. 3 comprise jaws 35a, 35b carrying pusher elements upper 36 and lower 37 on either side of a light 38 visible in FIG. 5C.

The movable means 33a, 33b will form the side faces of the carton automatically once the cardboard recessed into the frame by folding the double walls of the side faces.

To do this, according to Figure 5A the movable means 33a, 33b are in an inclined positon C for receiving the cardboard and pre-folding the side walls of the cardboard where the jaws part angularly.

The lower pushing elements 37 bear against the first wall elements 15a, 15b of the small flaps and the second upper pushing elements 36 bear against the second wall elements 15'a, 15'b of the small flaps and incline them by compared to the bottom of the cardboard.

According to Figure 5B. the moving means are returned by a jack 42 in a position for which the upper and lower pusher elements are aligned vertically in a position A folding the lateral faces of the carton at 90 ° to the bottom.

According to Figure 5C. a rotation of the jaws 35 movable relative to the moving means to the position A 'actuates the second upper pusher elements 36 to fold the second wall elements 15'a, 15'b small flaps on the first wall elements and form the double wall. To do this, the free edge of the double wall being formed fits into the lumen 38 as shown in Figure 6. The movable jaws are actuated by jacks 40 on plates 43, 44 fixed to the frame 30 and carrying the fixed jaws 35b.

Pusher elements 36, 37 consist of rollers rotatably mounted on shafts 47 disposed on either side of the lumen 38 and parallel to the lateral faces of the carton. These rotatably mounted rollers can roll on the carton during forming of the side faces and can be flexible to not mark the carton.

According to FIG. 5D, the mobile forming means 33a is lowered into a retracted position B adapted to disengage the cardboard by translation on the table 31. To do this, the mobile means 33a is mounted on a plate 45 slidably mounted relative to the plate. 43 on a first cylinder 40 adapted to move it between a forming position of a side face of the carton and the retracted position C.

The process for producing the carton and for packaging the bottles comprises a step of laying the carton 1 flat on the frame 30 as in FIG. 2A, and a step of driving the carton into the frame so as to preform the longitudinal faces of the carton. carton according to Figures 2B, 2C, 2D, a folding step of the small flaps to form the double walls according to Figure 5C, a step of placing the bottles 50 in the carton and a step of translating the carton on the table to close the large flaps by means for example ramps 60 according to Figure 5D. The step of translating the carton comprises a step of sticking an adhesive tape on the large flaps of the top of the carton by a bonding machine 61.

FIG. 5E represents a variant of the mobile forming means for which the movable jaws 135 are connected to the jacks 141a, 141b by a linkage system 150, 151 which allows said movable jaws to tilt backwards in a position C 'similar to the standby C position of the blank.

In this configuration, the mobile means 133a, 133b no longer need to tilt which saves a cylinder and two joints of the moving means on the table.

In this variant, the jaws 135 carrying the upper pusher elements are movable in inclination between the inclined positron C 'rear pre-folding of the side walls of the carton and the inclined front position A folding the lateral faces of the carton. The movable jaws 135 are in this case capable of rotation about their bearing axis of about -30 ° to -40 ° in the backward direction to about + 170 ° to + 180 ° in the forward direction cardboard side.

The movable means 133a just as the movable means 33a is able to fade under the table under the action of the jack 140 moving the support 145 carrying the jaws relative to the support 143 fixed to the table 31. The driving step cardboard comprises successively: a folding of the tabs 16a, 16'a, 16b, 16'b of the large flaps in a direction perpendicular to the plane of the large flaps FIG. 2B; a folding of the large flaps along the first fold line 101 to form the longitudinal sides of the carton and to bring the tabs 16a, 16'a, 16b, 16'b along the third fold line 103 of the small flaps FIG. 2c, 2D; - Folding the small flaps along the third fold line 103 Figure 5A. The folding step of the small flaps is continued according to FIGS. 5B, 5C by an automatic folding under the sequential action of the jacks 42, 41a, 41b. The jack 42 straightens the moving means 33a, 33b and the cylinders 41a, 41b fold the small flaps 180 ° around the fourth fold line 104.

This last folding begins with the first grooving thread 18, a folding of the tongues 17a, 17'a, 17b, 17'b folded by said folding, continues with the second grooving net 18 '.

The double fold is represented in FIG. 6, the wall elements of the small flaps surrounding the tabs 16a, 16'a, 16b, 16'b and the tongues 17a, 17'a, 17b, 17'b which produces the border of support of the outer edges of the half walls at the free edge of the double walls.

The movable jaws are then returned to the position of Figure 5B to allow to put the bottles in place, cardboard pressed into the frame.

The method then optionally comprises a step of laying the interlayer, flaps 3 arranged between the bottles in the carton, the protective strip 2c being positioned under a line joining the half-walls 14a, 14b of the top of the carton so as to constitute a protective strip of the bottles.

Then, as seen above, the carton is taken out of the frame longitudinally to a sticking station of a self-adhesive film as shown in FIG. 5D.

In the context of the invention, it should be noted that the corrugated cardboard has its grooves 201 oriented parallel to the lateral faces of the carton which makes the free edges of the longitudinal faces more rigid and makes it easier to fold the small flaps which remain rigid due to the presence of the double wall and legs whose flutes will be vertical.

The folding part of the double walls can be automated by sequencing the control of the cylinders 40, 41, 42 to automatically place the mobile means 33a, 33b in the vertical position and then rotate the movable jaws 35a to fold the small flaps with the upper pushers 36, the return of the upper pushers in vertical alignment with the lower pushers and the erasure of the moving means 33b for removing the cardboard from the frame.

To move the carton, the table 31 may comprise endless belts 46, 48 shown in FIG. 4 or a roller conveyor.

FIGS. 8A, 8B, 8C show perspective views of a variant of the machine of FIG. 4. The machine also comprises a frame 30 comprising a table 31 for receiving and forming the cardboard provided with sequential forming means. made by means of forming guides 32, 34, adapted to form the longitudinal sides of the carton by a depression of the blank 1 in the frame.

As more particularly represented in FIG. 10 which represents an enlarged view of a part of the machine of FIG. 8 in perspective, the rounded-head vertical cylindrical rollers 39 'mounted on the frame on either side of the guides are here mobile laterally on plate axes 390 articulated on axes 391 and biased towards the central axis of the table under the action of a spring 392. These rollers, less laterally spaced apart that the guides 34 complete the folding of the longitudinal faces at the end of depressing the cardboard in the frame and help to maintain the lateral carton and its exit from the frame by avoiding friction with the guides 34.

In this embodiment, the mobile means for forming the lateral faces, from the flaps 12a, 12b and folding the second elements 15'a, 15'b small flaps towards the inside of the carton to form the double walls of the Lateral faces of the carton are more particularly shown in FIG. 9. These movable means also comprise jaws 235a, 235b carrying upper pushing elements 236, 260 for forming said free edge of double walls and comprise at least one first lower thrust element 237. contacting said first wall member 15a, 15b with small flaps at the beginning of the depression of the cardboard to straighten the side walls of the cardboard and then in contact with the second wall members 15'a, 15'b of the small flaps.

The lower pusher elements are here rollers or rollers 237 rotatably mounted on pins 239a, 239b. The upper pushing elements are a combination of fingers 260 and rollers 236. The lower and upper pushing elements are arranged on either side of a light 238 and parallel to the lateral faces of the cardboard.

According to the example shown, two upper pushing elements are arranged along the lateral face. It is possible, however, to adapt the number of pushing elements and their width and using more or fewer rollers or using rollers of suitable width to distribute the thrust forces on the board and increase or reduce the number of thrust points depending on the stiffness this carton. The addition of a pusher element 236, 260 in the middle of the side is envisaged within the scope of the invention.

The jaws 235a, 235b carrying the upper pushing elements 236, 260 are mounted on the axes 239a, 239b carrying the lower pushing elements 37, 237.

To fold the second wall members 15'a, 15'b small flaps, the upper pusher elements 236, 260 rotates about the axes 239a, 239b to fold the second wall elements.

In a first unfolded sidewall position, rotation of the jaw 35 firstly allows the fingers 260 to begin folding the sidewalls and then the casters 236 finish folding the second wall member of the small flaps onto the first wall member small flaps and form the double wall whose free edge fits into the light 238.

The jaws 235 carrying upper pusher elements are here also movable in inclination between a rear inclined positon of pre-folding of the side walls of the carton and an inclined position before folding of the lateral faces of the carton.

In this embodiment, the carrier axes of the lower elements and on which the jaws are mounted are rotatable under the action of drive means 250a, 250b.

It is possible to provide driving means in the form of motors driving the axes but for a question of cost, and simplicity of control, it is according to the example shown provided to control the rotation of the axes by a single pneumatic cylinder 241 operating through a connecting rod / tippers 242, 243, 244.

The jack 241 pushes a rocker 243 whose axis is integral with a pinion or ring 246 receiving a belt 240 which drives a second pinion 247 integral with the axis 239b carrying the jaws on which are rotatably mounted a first lower pusher element.

The rocker 243 has an extension connected to a first end of a connecting rod 242 which is itself connected at its second end to a second drive rocker of a pinion or crown 246 'driving like the first through a belt 240 a second pinion 247 'on which is mounted the axis 239a. on the other side of the cardboard to be formed.

According to this arrangement, the drive means are synchronized, which allows to fold the walls of the two small sides simultaneously.

In this embodiment, the carrier axes of the lower pusher elements and the pusher elements are arranged relative to the table at a height greater than the height of the cardboard formed, which makes it possible, as in the prior art FR 2 947 532 A1, to exit the carton for pushing it in a longitudinal output direction towards the adhesive tape machine 61 to keep the upper half walls closed. In this embodiment, however, the upper half walls must be folded by hand before removing the carton from the machine once the bottles are placed in the carton. As for the machine of Figure 4, the method comprises a step of laying the carton 1 flat on the frame 30 as shown in Figure 8B, a step of driving the cardboard into the frame so as to preform the longitudinal sides of the carton as shown in FIG. 8B, where the lateral faces are furthermore placed vertically. The method then comprises a step of folding the small flaps to form the double walls by using the moving means, a step of placing the bottles in the carton, a closing step large flaps and a step of translating the cardboard on the table. The step of translating the carton then comprises a step of sticking an adhesive tape on the large flaps of the top of the carton. The step of driving the carton comprises successively: folding of the tabs 16a, 16'a, 16b, 16'b of the large flaps in a direction perpendicular to the plane of the large flaps by first sequential guides 32a, 32b; a folding of the large flaps 11a, 11b along the first fold line 101 to form the longitudinal sides of the carton and to bring the tabs 16a, 16'a, 16b, 16'b along the third fold line 103 of the small flaps with second sequential guides 34; - Folding the small flaps along the third fold line 103 with the moving means. The invention is not limited to the example shown and in particular can be applied to cartons of sizes adapted to receive more or less than six bottles, the machine may also include additional automatic means.

Claims (15)

Bottle-packing machine in a carton comprising a bottom, two longitudinal faces, two lateral faces and a top, made from a cut blank (1) having a rectangular back (10) surface adapted to making a bottom of the carton adapted to receive the bottles flat, two large flaps (11a, 11b) extending outwardly of the rectangular back from long sides of the rectangular back and each having a first forming portion of a longitudinal side (13a, 13b) of the cardboard connected to the back by a first fold line (101) and a second part (14a, 14b) forming a half wall of the top of the cardboard connected to the first part by a second line bend (102) and two small flaps (12a, 12b) extending outwardly from short sides of the rectangular back, the small flaps (12a, 12b) having a first wall member (15a, 15b), connected to the back by a third fold line ge (103), and a second wall member (15'a, 15'b), connected by a fourth fold line (104) to the first wall member, said fourth fold line being adapted to provide a free edge of double walls (15a, 15b) of the lateral faces of the carton by folding the second element on the first element, for which the large flaps comprise tabs (16a, 16'a, 16b, 16'b) extending said first portion of the large flaps and adapted to fold between double walls (15a, 15b, 15'a, 15'b) of the lateral faces of the carton, characterized in that the machine comprises a frame (30) comprising a table (31) for receiving and forming the carton provided with sequential forming means made by means of forming guides (32, 32a, 32'a, 32b, 32'b, 34, 34a, 34b, 34'a, 34'b), adapted to form the longitudinal sides of the carton by a depression of the blank (1) in the frame, for which the frame comprises movable means (33a, 33b, 233a, 233b) of forming the lateral and folding faces of the second elements (15'a, 15'b) of the small flaps towards the inside of the carton to form the double walls of the lateral faces of the carton, said mobile forming means comprising jaws (35a, 35b, 235a, 235b) carrying upper pushing elements (36, 236, 260) for forming said free edge of double walls and comprising at least a first lower pushing element (37, 237) bearing against said first wall element (15a, 15b) small flaps or said second wall element (15'a, 15'b) of said small flaps, said pusher elements (36, 236, 260, 37, 237) being rotatably mounted on pins (47, 239a, 239b), arranged on either side of a lumen (38, 238) and parallel to the lateral faces of the carton. 2- boxing machine according to claim 1 wherein at least a second upper pusher element (36) abuts against said second wall element (15'a, 15'b) in a first unfolded sidewall position, a rotating the jaw (35) actuating said second upper pusher member (36) to fold the second wall member of the small flaps on the first wall member of the small flaps and form the double wall whose free edge fits into the lumen ( 38). 3 - Packing machine according to claim 1 or 2 for which at least one of the forming means is mounted on a first cylinder (40) adapted to move it between a position (A, C) of forming a face side of the carton and a position (B) retracted adapted to the release of the cardboard by translation on the table (31). 4- Boxing machine according to claim 3 wherein the jaw (35a) carrying the upper pusher element (37) is rotatable about the lower pusher element under the action of a second cylinder (41a, 41b). 5 - Packing machine according to claim 4 wherein said mobile forming means are movable under the action of a third cylinder (42) in inclination between an inclined positon (C) of pre-folding the side walls of the carton and a position (A) for folding the lateral faces of the carton. 6 - Boxing machine according to any one of claims 1 to 5 wherein the jaws (135) carrying the upper pusher elements are movable in inclination between a sloped positon (C ') back of pre-folding the side walls of the carton and a forward inclined position (A) for folding the lateral faces of the carton. 7 - Packing machine according to claim 1 or 2 wherein the jaws (235b) carrying the upper pusher elements (36, 236) are mounted on the axes (239a, 239b) carrying lower pusher elements (37, 237). 8- Packing machine according to claim 7 wherein the upper pushing elements combine fingers (260) and rollers (236). 9 - Packing machine according to claim 7 or 8 for which the bearing axes of the lower elements and on which are mounted jaws are rotatable under the action of drive means (250a, 250b). 10 - Packing machine according to claim 8 wherein said drive means are synchronized and controlled by an actuating cylinder through a connecting device / rockers (242, 243, 244). 11- Packing machine according to claim 8, 9 or 10 for which the drive means are sprocket means (246, 247) connected by belts (240). 12- boxing machine according to any one of claims 7 to 11 wherein the bearing axes of the lower pusher elements and the pusher elements are arranged relative to the table at a height greater than the height of the formed cardboard. 13 - Method of packaging bottles in a carton by means of a machine according to any one of the preceding claims, characterized in that it comprises a step of laying the carton (1) flat on the frame (30) and a step of driving the carton into the frame so as to preform the longitudinal sides of the carton, a folding step of the small flaps to form the double walls with said movable means, a step of placing the bottles (50) in the cardboard, a step of closing the large flaps and a step of translating the cardboard on the table. 14. The method of casing according to claim 13 wherein the step of translating the carton comprises a step of sticking an adhesive tape on the large flaps of the top of the carton. 15 - Packing method according to claim 13 or 14 for which the step of driving the cardboard comprises successively: - a folding of the tabs (16a, 16'a, 16b, 16'b) of the large flaps in a perpendicular direction in terms of large flaps; folding the large flaps along the first folding line to form the longitudinal sides of the carton and bringing the tabs (16a, 16'a, 16b, 16'b) along the third fold line (103) small flaps; - Folding the small flaps along the third fold line (103).