WO2004089611A2 - Device, installation and process for producing a package from a sheet of flexible material - Google Patents

Device, installation and process for producing a package from a sheet of flexible material Download PDF

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Publication number
WO2004089611A2
WO2004089611A2 PCT/EP2004/050488 EP2004050488W WO2004089611A2 WO 2004089611 A2 WO2004089611 A2 WO 2004089611A2 EP 2004050488 W EP2004050488 W EP 2004050488W WO 2004089611 A2 WO2004089611 A2 WO 2004089611A2
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Patent type
Prior art keywords
package
sheet
shaping
member
flexible material
Prior art date
Application number
PCT/EP2004/050488
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French (fr)
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WO2004089611A8 (en )
WO2004089611A3 (en )
Inventor
Jacky Van Caeneghem
Benoît KESTELOOT
Roger Deldaele
David Platre
David Chaumeil
Original Assignee
Jacky Van Caeneghem
Kesteloot Benoit
Roger Deldaele
David Platre
David Chaumeil
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B31MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31BMAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00Making rigid or semi-rigid containers, e.g. boxes or cartons
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B31MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31BMAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2105/00Rigid or semi-rigid containers made by assembling separate sheets, blanks or webs
    • B31B2105/002Making boxes characterised by the shape of the blanks from which they are formed
    • B31B2105/0022Making boxes from tubular webs or blanks, e.g. with separate bottoms, including tube or bottom forming operations
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B31MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31BMAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/26Folding sheets, blanks or webs
    • B31B50/28Folding sheets, blanks or webs around mandrels, e.g. for forming bottoms
    • B31B50/30Folding sheets, blanks or webs around mandrels, e.g. for forming bottoms the mandrels moving
    • B31B50/32Folding sheets, blanks or webs around mandrels, e.g. for forming bottoms the mandrels moving in circular paths
    • B31B50/324Folding sheets, blanks or webs around mandrels, e.g. for forming bottoms the mandrels moving in circular paths the mandrels being parallel to the axis of a drum

Abstract

A device for producing a package from a sheet of flexible material. This device comprises basically a male part (18) and a female part (11-17), which are intended to cooperate with each other, so as to produce the actual shape of the body of the package. The female part basically comprises a recessed region (12) which is fastened to means for translation along a first direction. The two free edges (14) of the recessed region house suckers (13) intended to take the sheet of flexible material placed thereat. Two jaws (15) are hinged along the edges (14) and can be actuated by means of cylinder actuators (16) in such a way as to define, in relation with the recessed region, the external envelope of the body of the package to be produced when said jaws are closed up. The male part consists of a sleeve or mandrel (18) complementary in shape to the internal shape of the female part and capable of undergoing a translational movement in a direction perpendicular to said first direction, so as to be positioned level with the female part and to cooperate with the latter. The device further comprises a member (31) for fastening together the two edges of the sheet of flexible material after shaping, that is to say after cooperation of the male part with the female part.

Description

DEVICE, INSTALLATION AND PROCESS FOR PRODUCING A

PACKAGE FROM A SHEET OF FLEXIBLE MATERIAL AND FOR

FILLING IT WITH A PULVERULENT OR NQNPULVERULENT PRODUCT

The invention firstly relates to a device for producing a package from a sheet of flexible material, especially board, plastic or paper, and also to shape such a material. The invention also relates to an installation for producing such a package and also for filling it with a pulverulent or nonpulverulent product, using such a device. Finally, the invention relates to a process for producing such a package, as well as for filling it with a pulverulent or nonpulverulent material .

In the packaging field, and especially the packaging of agri-foodstuff products, it is becoming increasingly desirable to produce a wide variety of shapes and other formats while seeking to comply with sanitary or hygiene requirements, especially m terms of sealing and preservation.

To satisfy this desire for a multiplicity of shapes, it has been proposed to produce packages from a flat or sheet material, intended to form the body of the package. This sheet is given the desired shape by means of a mandrel and gπppers that take hold of the two extreme edges of the sheet, so as to overlap them, edge over edge, typically with a width of two to five millimeters, and then to fasten them together over their entire height, this fastening operation typically being carried out via high-frequency ultrasonic welding or even by adhesive bonding or heat sealing. The body of the package thus produced receives, at its base, a bottom and, after being filled, its upper part receives

Figure imgf000002_0001

Although the packages thus obtained allow this multiplicity of shapes to be produced, their automation and their filling, however, still pose many problems. This is because the step of shaping the sheet material, by the use of grippers, firstly is difficult to automate and secondly results an relatively slow production rates. What is more, the operation of fitting the bottoms and caps on a sheet material, which is therefore generally flexible, also poses a problem because of the lack of rigidity of the body of the package thus formed.

Document GB-A-1 335 454 has described a device for shaping a package made from a sheet of board, which is provided with a shaping member incorporating a female part and a male part that is intended to cooperate with the female part, besides a member for fastening together the two edges of the sheet of board after the shaping operation.

The female part is fastened to means for moving in translation along a first direction, in this case horizontally, and comprises two hinged jaws intended to define by themselves the desired shape of the package when they are actuated, and especially to define the envelope of the package to be produced.

This shaping member also includes a male part, consisting of a sleeve or mandrel of cylindrical shape, complementary in shape to the internal shape of the female part and intended to cooperate with the latter.

It is apparent from the operating method described in that document that the sheet of board, shaped by the shaping member, is systematically held in place on the mandrel at each of the various stations of the device in question, in such a way that said mandrel is present during each of the steps after the actual shaping step, since this mandrel is not required to be moved relative to the reference frame formed by the female part. Accordingly, this device can be envisioned only for the production of packages that are cylindrical and also in a single format, that is to say having a single height of the body of the package.

The objective of the present invention is firstly to propose a device for shaping the body of the package to the desired shape in a simple, effective and automatic manner. It then consists in allowing a multiplicity of formats, something which hitherto it was not known how to do in a simple manner and with high production rates .

To do this, such a device for shaping a package made from a sheet of flexible material, stored on one of its sides in a storage magazine, comprises: a shaping member, which itself comprises:

• a female part, fastened to means for translation along a first direction, and also including at least one hinged jaw, intended to define at least partly the desired shape when it is actuated and especially to define the envelope of the package to be produced,

• a male part, consisting of a sleeve or mandrel complementary in shape to the internal shape of the female part and intended to cooperate with the latter; a fastening member for fastening together the two edges of the sheet of flexible material after shaping, that is to say after cooperation of the male part with the female part .

According to the invention:

- the female part furthermore includes a recessed region, at the edge of which the jaw or jaws is or are hinged, and intended to define, with this jaw or these aws, the very at least partial envelope of the package to be produced; the female part is provided with suckers, or equivalent systems, which are intended to receive the sheet of flexible material taken from the storage magazine; and - the sleeve or mandrel constituting the male part can be driven in a translational movement along a direction perpendicular to said first direction, so as to be positioned level with the female part.

In other words, the device according to the invention consists in shaping the body of the package using the punch-and-die principle, in an automatic manner, while furthermore allowing the mandrel constituting the male part to undergo relative displacement perpendicular to the displacement of the female part.

According to one feature of the invention, the actuation of the aws, causing the recessed region to be closed, does not terminate in the integral circumference of the envelope of the package to be produced, but defines a slit intended to leave clear the access to the fastening member. The latter typically consists of a sonotrode, but another device may be envisioned, especially one emitting high frequencies, or heating to seal the body of the package by heat sealing.

This or these jaws are actuated by cylinder actuators fastened to the recessed region of the female part.

The mandrel is made of a material having a low coefficient of friction and typically made of polytetrafluoroethylene or polyacetal. The objective of this is to make it easier to remove said mandrel during the following operations, especially those of fitting the bottom and the cap, and in general the closure components . According to another feature of the invention, the entire female part is capable of rotating m the vertical or horizontal plane through an adjustable angle so as, after removal of the mandrel and fitting of a first closure component, to allow said package to be directed toward a station for filling it with a pulverulent or nonpulverulent product, and fitting a second closure component . The invention also relates to an installation for producing a package, made from a sheet of flexible material and provided with a bottom and a cap, and for filling it with a pulverulent or nonpulverulent product .

Th s installation comprises: a magazine for storing said sheets of flexible material, within which the sheets are stored on one of their sides; a member for advancing N shaping devices of the type described above, these being uniformly distributed along its direction of advance, said member being intended to position said devices at the various stations needed for the production and filling of the package, said member being capable of moving in stepwise mode, the advance step of which corresponds to 1/N of the length of said member; a gripping member provided with suckers or equivalent systems, which is driven in a horizontal translational movement and intended to take said sheets of flexible material one by one and, after rotation, to position them on the suckers or equivalent systems, with which the edge or edges of the recessed region of the female part of the shaping device is or are provided;

- a member for fitting a closure component at one of the ends of the body of the package resulting from the shaping by the shaping device; a member for filling the package, provided with its bottom, with a pulverulent or nonpulverulent product; and

- a member for fitting a second closure component of the type similar to the member described above.

In other words, the installation according to the invention makes it possible for the operations of producing the package and of filling and sealing it to be carried out automatically, something which hitherto it was not known how to do effectively.

According to the invention, the mode of advance may be linear, and in this situation the advancing member is a linear conveyor.

According to another embodiment, the mode of advance may be rotary, and n this configuration, the advancing member consists of a rotary carousel having a vertical rotation axis, the N shaping devices then being periodically distributed around its periphery, the carousel being capable of moving in stepwise mode, the rotation step of which corresponds to 1/N of a revolution .

According to the invention, the members for fitting the closure components consist of a carousel, which rotates about a vertical axis, on which a plurality n of work stations are mounted, distributed periodically around its periphery, said carousel being capable of moving in a stepwise mode, the rotation step of which corresponds to 1/n of a revolution, said stations being used, respectively:

- to grip a closure component indexed in a suitable receptacle;

- to convey said closure component to a member for coating the internal or external periphery of said component with adhesive; and to positαon the closure component thus coated with adhesive on one of the ends of the body of the resulting package produced by the shaping device or after the package has been filled; each of these stations being provided with a gripping member, especially a suction gripper, driven an a vertical movement, the actual advance of the advancing member bearing the shaping members and the carousels bearing the members for fitting the closure components being synchronized m such a way that the gripping member of the carousels, when it is in a positioning configuration, is centered with respect to the upper face of the male part of the shaping device located vertically in line with the carousels in question.

The invention also relates to a process for producing, and even filling, a package made from a sheet of flexible material. This process consists:

- firstly in producing the body of the package from said flexible sheet, by shaping the latter according to the desired shape of the package, by means of a male part and a female part of a shaping member that cooperate with each other, and by fastening together two of the edges of said sheet; - then in positioning, at one of the ends of the body of the package thus produced, a first closure component, precoated with adhesive on the internal or external face of its periphery; and then in rotating the container thus obtained, consisting of the body and said first closure component, in such a way as to allow it either to be filled, then, during the next step, a second closure component to be positioned, or for a second closure component to be positioned immediately.

According to the invention, the step of positioning the first closure component is carried out while the male part of said shaping member is still present, at least in part, within the body of the package. On the other hand, the step of positioning the second closure component is carried out in the absence of any male part inside the body of the package.

The manner in which the invention can be implemented and the advantages that derive therefrom will become more clearly apparent from the illustrative example that follows, given by way of nonlimitmg example and supported by the appended figures.

Figure 1 is a schematic representation in perspective of the installation according to the invention.

Figure 2 is a schematic representation in perspective of a shaping member according to the invention.

Figure 3 is a schematic representation in perspective of the gπpper of the sheet of flexible material according to the invention. Figure 4 is a schematic representation in perspective of the member for fastening together the two edges of the sheet material after shaping.

Figure 5 is a schematic representation m perspective of a member for positioning a closure component according to the invention. Figure 6 is a schematic representation in longitudinal section of a package according to the invention, according to a first embodiment.

Figure 7 is a schematic representation in longitudinal section of a package according to the invention, according to a second embodiment.

Figures 8 to 14 are schematic representations illustrating the particular embodiment of a package according to the invention but with a flared profile.

The installation according to the invention is shown overall an figure 1.

It firstly comprises a magazine (1) for storing sheets of flexible material, especially board or plastic, which are stored on one of their sides, and are subjected to moderate pressure in such a way that they are always an a perfectly flat form, at the point where they are gripped.

These sheets of flexible material are intended to form the body of the package to be produced, after the shaping and fitting of a bottom and a cap, these being called hereafter the closure components.

At the front face of this magazine (1), a grαpper (2), described in greater detail in relation to figure 3, takes hold of said sheet material by one of its two faces, so as to position it at a shaping member (4), positioned approximately facing the magazine (1), at this stage of operation of the machine.

The gripper (2) firstly comprises a gripping arm (26) , provided with four suckers (25) or equivalent systems, which are connected to a vacuum source. These suckers (25) are mounted in the same plane and are intended to take a sheet of flexible material from the storage magazine (1) . This gripping arm s mounted on a rotary shaft (27) capable of rotating through 180° by means of a motor (28), for example a pneumatic or electric motor.

Consequently, the assembly thus formed is mounted on a carriage (29) , that can be actuated so as to move in horizontal translation by means of a worm (36) rotated by a motor (37), said carriage thus being capable of moving along guides (30) . This translational movement is intended to allow the arm (26) to move up to the storage magazine (1) and grasp a sheet of flexible material.

The shaping members (4), also described in greater detail in relation to figure 2, are distributed periodically around the periphery of a carousel (3) with a vertical rotation axis, whαch therefore constitutes the advancing member, said carousel being rotated in stepwise mode by means of a motorized indexation system.

In the example described, the carousel (3) has six shaping members (4), therefore distributed around the periphery of said carousel (3) every sixth of a revolution.

Consequently, the rotation step of the carousel (3) also corresponds to one sixth of a revolution, allowing each of the shaping members (4) to be positioned at defined locations in which a certain number of steps can be carried out, these being necessary, firstly, for producing the actual package and secondly to fill it.

The installation also includes members for fitting the closure components for these packages.

These members (6) and (7) both consist of a carousel, again with a vertical rotation axis, these being described in greater detail in relation to figure 5.

The first of these carousels (6) is intended to position one of the closure components at one of the ends of the body of the package thus shaped, which is always held in place onto the shaping member (4), while the second carousel (7) is intended, after filling, to close off the package thus filled, with a second closure component.

The next step consists in ejecting the filled and sealed package onto a conveyor (10) , which takes the filled packages to their storage locations, before being shipped.

The shaping member (4) according to the invention will now be described an greater detail. This comprises basically a male part (18) and a female part (11-17), which are intended to cooperate with each other, so as to produce the actual shape of the body of the package.

As already mentioned, the gripping member (2) ensures that a sheet of flexible material is positioned against the female part of the shaping member. This female part basically comprises a recessed region (12), in this case defining a semicylmdrical volume, whαch is a fastened to a motor (11) fixed to the periphery of the carousel (3) . This recessed region may, however, adopt another profile, for example parallelepipedal, triangular, etc., depending on the shape that it is desired to give the package.

This recessed region (12) can be made to undergo, in the example described, a horizontal translational movement by means of an electrical or pneumatic displacement system.

The two free edges (14) of the recessed region (12) house firstly suckers (13), four suckers an thas case, which are connected to vacuum source, positioned in the same plane and intended to take the sheet of flexible material placed thereat by the gripper (2) .

Two aws (15) are hinged along the edges (14) and can be actuated by means of cylinder actuators (16) in such a way as to define, in relation with the recessed region (12), the external envelope of the body of the package to be produced when said aws are closed up.

In other words, in the example described, when the aws (15) are actuated, that is to say closed up, they define with the recessed region (12) an approximately cylindrical shape. Advantageously, the recessed region (12) also includes two suckers (17) or equivalent (only a single one has been shown) , which are incorporated into the structure definαng at, and therefore not forming a projection from its internal surface, allowing the body of the package, after being shaped, to be held in place.

The male part of the shaping member (4) consists of a sleeve (18), which in the example described is cylindrical, positioned on a base (19) . This base (19) can be actuated in translation along a direction perpendicular to the direction of translation of the female part, and therefore in the example described in a vertical direction. This displacement is carried out along guides (20) by means of a cylinder actuator or equivalent, in such a way as to allow said mandrel (18) to rise up to the female part (12-16) .

This mandrel (18) is advantageously made of a material having a very low coefficient of friction, typically polytetrafluoroethylene (Teflon'"') or polyacetal (Delrin0") so as to make it easy for it to be extracted from the body of the package thus shaped.

The body of the package is produced an the following manner.

The sheet of flexible material is positioned by the gripper (2) against the suckers (13) of the female part of the shaping member (4), said sheet still being in flat or substantially flat form, the plane being slightly short of the closest generatrix of the mandrel (18) . The carousel (3) then undergoes a rotation of one sixth of a revolution.

The mandrel (18) is then raised vertically in line with said female part, and when this translational movement has been completed, said female part undergoes a horizontal translational movement, causing the sheet of flexαble materαal to be pushed by the mandrel (18) αnto the recessed regαon (12) . Of course, the inside diameter of said recessed region (12) and of the aws (15) and the outside diameter of the mandrel (18) are substantially identical to each other with a clearance.

The horizontal translational movement of the recessed part (12) pushes said flexible sheet into the recessed region (12) and, correspondingly, activation of the closure of the jaws (15) thus causes the jaws (15) to close, which correspondingly brαngs the two lateral ends of the sheet of flexible material to come together edge to edge along the mandrel (18), or with a slight overlap of two to five millimeters, from one edge to the other, approximately along the generatrix of the mandrel (18) on the opposite side to the generatrix facing the recessed region (12) .

In addition, owing to the relative stiffness of the board or plastic of which the sheet material is made, it exerts pressure against the aws and against the recessed region while it is being shaped.

The jaws (15) are produced in this way so that, when they close around the mandrel (18), they are not contiguous but define a slot, for example a vertical slot, allowing the insertion of a member for fastening together the two edges, typically a sonotrode (32) shown in greater detail in figure 4. To facilitate the action of the sonotrode, the mandrel has, plumb with it, a structure (23) in the form of a welding insert, especially made of polymer or metal, extending along its entire generatrix facing the fastening member (32) .

According to one advantageous feature of the invention, prior to the welding of the sheet of flexible material in the shaper, edge to edge or one edge over the other, the upper end of the cylindrical envelope thus produced as leveled, that s to say made level by means of a jogger (5) , also called a leveler, positioned above the carousel (3), plumb with the welding station.

This jogger (5) basically comprises a lower vertical plate that can undergo a vertical translational movement by means of a cylinder/slideway assembly.

After this phase of welding, and therefore producing, the body, in this case cylindrαcal body, of the package to be produced, the carousel (3) undergoes a new rotation of one sixth of a revolution so as to be brought to a station for fitting a closure component.

At this stage, the mandrel (18) is withdrawn to a greater or lesser extent from the body of the package, depending on the type of closure component to be fitted and in particular depending on the desired adhesive coating method. This is because such closure components have a peripheral ring, and it may be desirable to fasten this ring to the body of the package on its external face or its internal face.

Figure 6 thus shows a package in which the peripheral ring (56) with which the closure component (55) is provided is fastened to the internal face (57) of the body (58) of the package. In this configuration, it may be seen and readily understood that an internal relief inherent to the ring relative to said internal face of the body of the package is created.

Thus, if it is desired to fit such a closure component and fasten it to the internal face of the body of the package, the mandrel (18) moves vertically downwards slightly in order to leave clear access to the ring (56) of said component inside the body of the package.

This retraction of the mandrel (18) is, however, of small amplitude and therefore keeps the body of the package sufficiently rigid for said bottom or said cap to be fitted.

However, if the closure component to be fitted is fixed to the external face (59) of the body of the package (58), as shown in figure 7, the mandrel (18) is left in place, that is to say it remains flush with the upper level of the body, again with the purpose of giving it sufficient stiffness, without any risk of it being bent or being damaged. In this configuration it may therefore be seen that there is no relief projecting from the internal face (57) of the body of the package, which configuration may be particularly desirable for certain applications, insofar as the products that can be contained in the package can then slide freely out

Figure imgf000016_0001

The closure component is fitted by means of the device (6) shown an figure 5.

This consists of a carousel (40) with a vertical rotation axis, rotated in a stepwise mode by means of a motorized indexing system.

In the example described, this carousel has three stations (42), (43), (44) distributed periodically around the periphery of the carousel (40) every third of a revolution.

Consequently, the rotary displacement step of the carousel is also one third of a revolution.

Each of the three stations (42), (43) and (44) is identical and provided with a sucker (45) or equivalent, which can be rotated on itself relative to a motorized vertical spindle (46) . Furthermore, each of the three stations (42-44) is mounted on a carriage (54) that can undergo a vertical translational movement by means of a worm (not shown) , rotated by a motor (48), causing said carriage (54) to be displaced along guides (53) .

In this regard, it should be pointed out that the displacement travel of said carriage (54) , and consequently of the stations (42-44), can be adapted according to the main dimension of the body of the package to be produced.

In the example described, the station (43) grips a closure component, conveyed by an accumulation conveyor (8) or (9) to a receptacle (49) located vertically beneath the station (43) . This accumulation conveyor is provided with a lug (50) , which releases a closure component present on said conveyor as soon as the closure component stored at (49) has been taken up by the station (43), and to do so by means of presence detection cells, or equivalent system.

In figure 5, after a closure component has been gripped by the sucker (45) of the station (43) at the accumulation receptacle (49) , the carousel (40) rotates through one third of a revolution to the left, corresponding to the station (44) shown. At this station, an adhesive coating system comprising a coating nozzle (47) positions a bead of adhesive around the external or internal periphery of the ring (56) of said closure component (55), saαd component being rotated by the rotation of said sucker by the spindle (46) .

This coating nozzle (47) is mounted on a carriage (51) that can move in horizontal translation by means of a cam system (not shown) which is itself actuated by means of a motor (52) . Thus, when it is desired to fasten the ring (56) of the closure component (55) to the internal face (57) of the body of the package, the nozzle (47) will deposit a bead of adhesive on the external face of said ring, running continuously at its station (44) .

On the other hand, when it is desired to fasten the ring (56) of said closure component to the external face (59) of the body of the package, said coating nozzle (47) is moved translationally by means of the carriage (51) so as to be plumb with the sucker (45), which s lowered so as to allow said nozzle to be covered by the closure component with which said sucker is provided, and thus allow the internal face of said ring to be coated with adhesive.

After coating, the carousel (40) then rotates a further one third of a revolution, corresponding to the station (42) shown in figure 5.

In this position, the sucker (45) is centered with respect to the upper face of the mandrel (18), and consequently of one of the ends of the body of the package.

This being so, since the axis of deposition of the closure component is automatically collmear with the axis of revolution of the mandrel (18), it becomes possible to operate the installation according to the invention irrespective of the cross section of the package and irrespective of its format.

The motor (48) is then actuated, in order to lower the carriage (54) of the station (42), and therefore the sucker (45) and the adhesive-coated closure component with whαch at is provided, in order to position t on the upper part of the cylindrical body, which is subjacent at that moment, thus allowing said closure component to be effectively fitted. - IE

Once this operation has been carried out, the mandrel (18) is completely withdrawn by moving vertically downwards, the cylindrical body provided with the closure component being, however, held in position in the recessed region (12), on the one hand due to the presence of the suckers (17) and on the other hand due to the relative stiffness of the board or plastic of which the sheet material is made, which exerts pressure against the jaws and against the recessed region.

After the carousel (3) has performed a new rotation through one sixth of a revolution, the entire female part, thus provided with the cylindrical body of the package, undergoes a rotation in the vertical plane, for example through 180°, by means of a gear motor system (not shown) .

Thereafter, in the next station, the package consisting of the body of the package and its closure component, is presented with its upper end open to the filling station (not shown) .

The fillαng materαal may be a pulverulent or nonpulverulent, or even liquid or pasty material and, if this material is confectionary, and more generally any fragile product, the rotation of the female part is not 180° but less, so as for the body of the package to be sloping to a greater or lesser degree, reducing the extent to which the product in question has to drop, and correspondingly reducing the risk of said product breaking or being partly damaged.

After a further rotation through one sixth of a revolution of the carousel (3) , the container formed by the package provided with its first closure component, and filled with product that it is intended to contain, is conveyed to the next station (7) for a second closure component to be fitted, which operates in an αdentαcal manner to that descrαbed an relataon to fagure 5, and closes off the package. However, the stiffness of the body of the package can no longer be provided at this stage by the mandrel (18) considering that the latter has been retracted in order to allow effective filling of said package with products. This stiffness is provided by the body of the package being held an place by the jaws (15) in cooperation with the recessed region (12) of the female part of the shaping member (4), and is furthermore inherent in the relative stiffness of the board or plastic that makes up the sheet material, which exerts pressure against the jaws and against the recessed region. It should also be pointed out that the suckers (17), with which the recessed region (12) of the female part is provided, also contribute to preventing the body of the package from slipping while said second closure component is being fitted.

At this stage, if it is desired for there to be a quality seal, this second closure component is necessarily fitted as shown in figure 6, that is to say the ring (56) is fastened to the internal face (57) of the body of the package.

However, if such a seal is not required, for example in the case of packages intended to contain powdered detergent or the like, that is to say if only relatively good sealing is sufficient, this second closure component may be fitted as depicted m figure 7.

After a further rotation of the carousel (3) through one sαxth of a revolution, the station carrying the filled and sealed package is conveyed to an ejection area, the package being placed on a conveyor (10) which takes it to a temporary storage area or to a packing area . The above example was described in relation to a packaging body having a constant cross section. However, the installation according to the invention can also be used to produce such packaging bodies but with a variable cross section, especially one that flares out toward the bottom or toward its upper face.

To do this, the mandrel (18) and the female part of the shaping member are profiled according to the desired shape.

The principle of operation remains the same. However, for fittαng the closure components, and especially the first of them, either the mandrel is withdrawn at the opening of the body having the largest cross section, or else, use may be made of a mandrel of the retractable type, that is to say one with a cross section that can vary, making it possible, by actuating a suitable device, to reduce its volume so as to allow it to be retracted from the body of the package so as to be level with the opening with the smallest cross section, thus making it possible for the ring of the closure component to be internally coated with adhesive .

In such a configuration, the closure component fitted to the end of the body of the package having the smallest cross section is always fitted with the peripheral ring (56) fastened to the internal face (57) of said body.

Moreover, if it is desired to have a closure component at that end of the package which is provided with the largest cross section, with the peripheral ring (56) fastened to the internal face (57) of said body, the positioning member (6) is used to fit the closure component at the end of said body having the smallest dimension and, after the mandrel (18) has been withdrawn, the positioning member (7) is used to fit the closure component at that end of the body having the largest dimension.

On the other hand, if it is desired to have a closure component at that end of the package which is provided with the largest cross section, having a peripheral ring (56) fastened to the external face (59) of said body, the positioning member (6) is used to fit this closure component, the mandrel (18) then entirely filling said body. This mandrel is then withdrawn via that end of said body with the smallest dimension, by retracting the latter parallel to its axis of symmetry or of revolution, in such a way as to give it a compatible cross section over its entire height, and especially one less than the cross section of that end of the body of the package having the smallest dimension. The positioning member (7) is then used to fit the second closure component at this end with the smallest dimension.

Thus, an embodiment of such a package with a nonconstant cross section has been shown in figures 8 to 14.

In the first step (figure 8) , the sheet of flexible material constituting the body (58) of the package, of suitable shape and dimensions, is brought up against the female part (4) of the shaping member, and especially up to the suckers (13) . According to the general process described above, the mandrel (18) , whose shape corresponds to the desired shape of the final package, is brought up to the female part (4), the latter wrapping said sheet around the mandrel (18) by means of the jaws (15) . After the shaping operation, the ends of the sheet are welded together.

As may be seen, the mandrel (18) is of approximately trapezoidal longitudinal section. Of course, with this configuration, the shape of the female part of the shaping member is matched to that of the mandrel. The package body (58) resulting therefrom therefore has two ends of circular section, but of different diameter, respectively an end arbitrarily called the upper end (60) with a small cross section and an end arbitrarily called the lower end (61), with a large cross section.

In the next step (figure 9), a closure component (62) is attached to the upper end (60) . For this purpose, the mandrel (18) is slightly withdrawn from the body

(58) of the package thus formed (during the preceding step) .

The mandrel (18) is then fully withdrawn and, thereafter, the female part (4) of the shaping member is rotated through 180°, which thus results in rotation through the same angle of the body of the package provided with its first closure component (62) (see figure 10) .

Thereafter, with the actual package closed off at its lowest end, it may now be filled (figure 11), for example by simple gravity, said package still being held in place by the female part of the shaping member.

Once this filling operation has been carried out, the second closure component (63) is fitted (figure 12), this t me at what is called the lower end (61) of the package .

Said female part, and therefore the package thus filled and closed off, then undergoes a further rotation of 180° (figure 13), before said package is deposited on a conveyor (10), by simply opening the aws (15) of the female part .

In a variant of the invention, the sheet of flexible material as not flat, rather at has one or more excrescences, for example of a decorative purpose, forming projections or reliefs relative to the plane that contains the sheet, said excrescences being obtained by any process, such as by thermoformmg.

This or these excrescences are always located at the same place on the sheet, so that they remain perfectly stackable and storable in a normal fashion within the storage magazine (1) .

It is simply necessary to ensure that the free edges of said sheet, and especially those intended to be fastened to each other during the shaping step, remain flat, in order for this fastening operation to proceed correctly.

In general, such excrescences whether they be directed toward the inside or the outside of the package, are localized, making it possible in particular for the sheet to be picked up by the suckers (25) of the gripper (2) and to be picked up again by the suckers (13) of the female part of the shaping member (4) .

Moreover, if the excrescences are intended to be dαrected toward the outsαde of the package, the recessed region (12) and/or the aws (15) are machined so as to allow said excrescences to be housed during the shaping step, without interfering with the actual shaping operation. For this purpose, a cavity is made within the internal wall of the recessed region (12) and/or of the aws (15) , with substantially standardized dimensions, greater than those of the possible excrescences, thus preventing any difficulty in terms of positioning the sheet when shaping it.

On the other hand, if these excrescences are intended to be directed toward the inside of the package, the same principle is adopted, but this time it is the mandrel (18) that has such a cavity made in its external surface, in order in this way to allow said excrescence (s) to be housed without impeding the shaping operation.

It wall be apprecaated ust how beneficial the installation and the shaping member according to the invention are, insofar as they allow, in a relatively simple manner, the simultaneous manufacture of a package, from a sheet of flexible material, which is preprinted and also capable of having decorations an the form of excrescences, and therefore capable of giving it any possible shape, and the filling of said package continuously, something which hitherto was not known how to be done efficiently with packages whose body is made of a flexible material stored in the form of flats, or in the form of predimensioned sheets or formats, and also with closure components fitted at both ends in a sealed manner.

The advantage of producing such a package was mentioned in the preamble of the present description.

Furthermore, when it is desired to change the shape, all that is required to do is to replace the male and female members of the shaping member with tools of the desired shape, which can be carried out very easily and very quickly.

At the same time, when it is desired to change the size of the package, for a given cross section, all that is required to do is to use correspondingly sized jaws (15) , and to increase, or, on the contrary, decrease, the travel of the mandrel in its region of cooperation with the female part of the shaping member.

Claims

1. A device for shaping a package made from a sheet of flexible material, stored on one of its sides in a storage magazine (1) , comprising:
- a shaping member (4), which itself comprises:
• a female part, fastened to means for translation along a first direction, and also including at least one hinged jaw (15) , intended to define at least partly the desired shape when it is actuated and especially to define the envelope of the package to be produced,
• a male part, consisting of a sleeve or mandrel (18) complementary in shape to the internal shape of the female part and intended to cooperate with the latter; a fastening member (31) for fastening together the two edges of the sheet of flexible material after shaping, that is to say after cooperation of the male part with the female part, characterized: in that the female part furthermore includes a recessed region (12), at the edge or edges of which the jaw or jaws (15) is or are hinged, and intended to define, with this jaw or these aws, the very at least the partial envelope of the package to be produced; in that the female part is provided with suckers (13) , or equivalent systems, which are intended to receive the sheet of flexible material taken from the storage magazine; and in that the sleeve or mandrel (18) constituting the male part can be driven in a translational movement along a direction perpendicular to said first direction, so as to be positioned level with the female par .
2. The device for shaping a package made from a sheet of flexible material as claimed in claim 1, characterized m that the actuation of the aw or jaws (15) , causing the recessed region (12) to be closed, does not terminate in the integral circumference of the envelope of the package to be produced, but defines a slit intended to leave clear the access to the fastening member (31) .
3. The device for shaping a package made from a sheet of flexible material as claimed in eαther of claαms 1 and 2, characterized an that the aw or aws (15) are actuated by cylαnder actuators (16) fastened to the recessed regαon (12) of the female part.
4. The device or shaping a package made rom a sheet of flexible material as claimed in one of claims 1 to
3, characterized in that the mandrel (18) is made of a material having a low coefficient of friction and especially made of polytetrafluoroethylene or polyacetal .
5. The device for shaping a package made f om a sheet of flexible material as claimed an one of claims 1 to
4, characterized m that the entire female part is capable of rotating m a vertical plane through an adjustable angle so as, after removal of the mandrel (18) and fitting of a closure component (55) onto the body of the package thus shaped, to allow said package to be directed toward a station for filling it with a pulverulent or nonpulverulent product, and then to be closed off.
6. The device for shaping a package made from a sheet of flexible material as claimed m one of claims 1 to
5, characterized in that the sheet has an excrescence forming a projection out of the plane that contains it, intended to be directed toward the outside of the package, and an that the αnternal wall of the recessed regαon (12) and/or of the jaws (15) of the shaping member (4) has a cavity having dimensions greater than those of saαd excrescence, so as to allow the latter to be housed thereαn durαng the shapαng step, wαthout impairing said excrescence.
7. The device for shaping a package made from a sheet of flexible material as claimed in one of claims 1 to 5, characterized in that the sheet has an excrescence formαng a projection out of the plane which contains it, αntended to be dαrected toward the αnsαde of the package, and an that the external wall of the mandrel (18) of the male part of the shaping member (4) has a cavity having dimensions greater than those of said excrescence, so as to allow the latter to be housed therein during the shaping step, without impairing saαd excrescence.
8. An installation for producing a package provided with closure components (55) from a sheet of flexible materαal, and for filling it with a pulverulent or nonpulverulent product, characterized an that at comprases : a magazine (1) for storing said sheets of flexible material, within which the sheets are stored on one of their sides; a member (3) for advancing N shaping devices as claimed an one of claims 1 to 7, these being uniformly distributed along its direction of advance, said member being intended to position said devices at the various stations needed for the production and filling of the package, said member being capable of moving m stepwise mode, the advance step of which corresponds to 1/N of the length of said member; a gripping member (2) provided with suckers (25) or equivalent systems, which is driven in a horizontal translational movement and intended to take said sheets of flexible material one by one and, after rotation, to position them on the suckers (13) or equivalent systems, with which the edge or edges (14) of the recessed region (12) of the female part of the shaping device (4) is or are provided;
- a member (6) for fitting a first closure component (55) at one of the ends of the body of the package resulting from the shaping by the shaping device (4) ;
- a member for filling the package, provided with its first closure component, wαth a pulverulent or nonpulverulent product; and - a member (7) for fαttαng a second closure component (55) of the type sαmilar to the member described above.
9. The installation as claimed in claim 8, characterized in that the advancing member consists of a rotary carousel (3) having a vertical rotation axis, and in that the N shaping devices (4) that it has are distributed around its periphery, the carousel (3) being capable of moving in stepwise mode, the rotation step of which corresponds to 1/N of a revolution.
10. The αnstallatαon as claαmed n eather of claims 8 and 9, characterized in that the gripper (2) comprises a gripping arm (26) provided with four suckers (25) or equivalent systems, which are mounted in the same plane, connected to a vacuum source and intended to take a sheet of flexible material from the storage magazine (1) , said gripping arm (26) being mounted on a rotary shaft (27) capable of rotating through 180° by means of a motor (28) , the whole assembly thus formed being mounted on a carriage (29) that can be actuated so as to undergo horizontal translation by means of a worm (36) rotated by a motor (37), said carriage (29) being capable of moving along guides (30), the translational movement resulting therefrom being intended to allow the arm (26) to move up to the storage magazine (1) and to grasp a sheet of flexible material .
11. The installation as claimed in one of claims 8 to 10, characterized an that the members for fαttαng the closure components (6, 7) each consαst of a carousel (40), which rotates about a vertical axis, on which a plurality n of work stations (42, 43, 44) are mounted, distributed periodically around its periphery, said carousel (40) being capable of moving m a stepwise mode, the rotation step of which corresponds to 1/n of a revolution, said stations being used, respectively: - to grip a closure component (55) αndexed in a suitable receptacle (49); to convey said closure component (55) to a member (47) for coating the periphery of said closure component with adhesive; and - to position the closure component thus coated with adhesive on one of the ends of the body of the resulting package produced by the shaping device (4) or after the package has been filled; each of these stations being provided with a gripping member (45), especially a suction gripper, driven in a vertical movement, the actual advance of the advancing member (3) bearing the shaping members (4) and the carousels (40) bearing the members for fitting the closure components being synchronized in such a way that the gripping member (45) of the carousels (40), when it is m a positionαng confαguratαon, is centered with respect to the upper face of the male part (18) of the shaping device (4) located vertically in line with the carousels in question.
12. The installation as claimed in claim 11, characterized in that the adhesive coating member consists of a coating nozzle (47) mounted on a carriage (51) that can move in horizontal translation and in that said coating nozzle (47) is dimensioned so as to be able to be covered by the closure component an order to be able to deposαt a bead of adhesαve on the αnternal surface of the perαpheral ring (56) that forms
Figure imgf000030_0001
13. A process for producing a package from a sheet of flexible material, characterized in that it consists: firstly in producing the body (58) of the package from said sheet of flexible material, by shaping the latter according to the desired shape of the package, by means of a male part and a female part of a shaping member (4) that cooperate with each other, and by fastening together two of the edges of said sheet;
- then in positαonαng, at one of the ends of the body of the package thus produced, a first closure component (62), precoated with adhesive on the internal or external face of its periphery; and - then in rotating the container thus obtained, consisting of the body and saαd first closure component, in such a way as to allow a second closure component to be positioned at the open end of said component then formed.
14. The process for producing a package from a sheet of flexible material as claimed in claim 13, characterized m that the first closure component is positioned while the male part (18) of said shaping member (4) is still completely or almost completely within the body (58) of the package, held in place by the female part of said shaping member, in such a way as to ensure maximum gripping between the peripheral ring (56), with which the closure component is provided, and the body of the package, which is held in place at this point by said male part (18), and thus sealing the resulting package very well.
15. The process for producing a package from a sheet of flexible material as claimed in claim 14, characterized in that the positioning of the first closure component does not lead to the formation of any regαon projecting from the internal wall (57) of the body of the package.
16. The process for producing a package from a sheet of flexible material as claimed in one of claims 13 to 15, characterαzed n that the second closure component as positioned in the absence of any male part inside the body of the package.
17. The process for producing a package from a sheet of flexible material and for filling at wath a pulverulent or nonpulverulent product, characterαzed in that it consists:
- firstly in producing the body (58) of the package from said sheet of flexible material, by shaping the latter according to the desired shape of the package, by means of a male part and a female part of a shaping member (4) that cooperate with each other, and by fastening together two of the edges of said sheet;
- then in positioning, at one of the ends of the body of the package thus produced, a first closure component (62), precoated with adhesive on the internal or external face of its periphery; and
- then in rotating the container thus obtained, consisting of the body and said first closure component, in such a way as to allow the container thus formed to be filled with a pulverulent or nonpulverulent product; and
- finally, in positioning a second closure component (63) on the second end of the package.
18. The process for producing a package from a sheet of flexible material and for filling it with a pulverulent or nonpulverulent product as claimed in claim 17, characterized in that the first closure component (62) is positioned while the male part (18) of said shaping member (4) is still completely or almost completely within the body (58) of the package, which is held in place by the female part of said shaping member, in such a way as to ensure maximum gripping between the peripheral ring (56), with which the closure component is provided, and the body of the package, held in place at this point by said male part (18), and thus sealing the resulting package very well.
PCT/EP2004/050488 2003-04-09 2004-04-08 Device, installation and process for producing a package from a sheet of flexible material WO2004089611A8 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR03/04376 2003-04-09
FR0304376A FR2853583A1 (en) 2003-04-09 2003-04-09 Device installation and method for producing a package from a sheet of flexible material and for filling with pulverulent product or not

Applications Claiming Priority (11)

Application Number Priority Date Filing Date Title
JP2006505539A JP2006522694A (en) 2003-04-09 2004-04-08 For the production of packaging containers from a sheet of flexible material, and a packaging container apparatus for filling with powder products or non-powder product, equipment, and methods
AU2004228379A AU2004228379A1 (en) 2003-04-09 2004-04-08 Device, installation and process for producing a package from a sheet of flexible material
DK04726519T DK1617992T3 (en) 2003-04-09 2004-04-08 An apparatus, system, and method for making a package from a sheet of flexible material
EA200501575A EA007256B1 (en) 2003-04-09 2004-04-08 Device, installation and process for producing a package from a sheet of flexible material and for filling it wth pulverulent or non-pulverulent product
DE200460002586 DE602004002586T2 (en) 2003-04-09 2004-04-08 Apparatus, system and method for producing a package from a sheet of flexible material
CA 2521636 CA2521636A1 (en) 2003-04-09 2004-04-08 Device, installation and process for producing a package from a sheet of flexible material
BRPI0408823A BRPI0408823A (en) 2003-04-09 2004-04-08 device for shaping a package made from a sheet of flexible material, and installation and process for producing a package from a sheet of flexible material and for filling it with a pulverulent powder product or not
MXPA05010843A MXPA05010843A (en) 2003-04-09 2004-04-08 Device, installation and process for producing a package from a sheet of flexible material.
EP20040726519 EP1617992B1 (en) 2003-04-09 2004-04-08 Device, installation and process for producing a package from a sheet of flexible material
US11243568 US20060021298A1 (en) 2003-04-09 2005-10-05 Device, installation and process for producing a package from a sheet of a flexible material and for filling it with a pulverulent or nonpulverulent product
TNSN05259A1 TNSN05259A1 (en) 2003-04-09 2005-10-07 Device installation and method for producing a package from a sheet of flexible material and for filling with pulverulent product or not

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DE (1) DE602004002586T2 (en)
DK (1) DK1617992T3 (en)
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EP2186624B1 (en) 2008-11-18 2015-08-26 Tetra Laval Holdings & Finance S.A. Apparatus and method for detecting the position of application of a sealing strip onto a web of packaging material for food products
EP2428355B1 (en) * 2010-09-14 2016-01-27 Tetra Laval Holdings & Finance S.A. A method and a machine for producing a container, in particular a container for pourable food products
CN105415185B (en) * 2015-12-05 2018-02-13 重庆华洋单向器制造有限公司 The jacket is a one-way pneumatic clamps

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US4033241A (en) * 1974-03-25 1977-07-05 Roda Macchine S.A. Apparatus for manufacturing cardboard tubes
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US5324249A (en) * 1992-08-28 1994-06-28 Paper Machinery Corporation Cup making machine
US20020053190A1 (en) * 1998-05-29 2002-05-09 Upm-Kymmene Corporation Method and packaging machine for forming a container, a blank web and a filled container

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DE3701427A1 (en) * 1987-01-20 1988-07-28 Focke & Co Device for the application of glue to wrap-blanks
DE3802644C2 (en) * 1988-01-29 1999-10-07 Focke & Co Method and apparatus for the manufacture of hinge-lid boxes for cigarettes
US5845466A (en) * 1996-11-15 1998-12-08 Laudenberg; Bernd Multiple package machine
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US3603220A (en) * 1970-02-02 1971-09-07 Phillips Petroleum Co Wrapping apparatus
GB1335454A (en) * 1971-04-13 1973-10-31 Phillips Petroleum Co Container-forming machine
US4033241A (en) * 1974-03-25 1977-07-05 Roda Macchine S.A. Apparatus for manufacturing cardboard tubes
GB2092060A (en) * 1981-01-30 1982-08-11 Novamaq Sa Producing tubular bodies from flat flexible sheet materials
US5324249A (en) * 1992-08-28 1994-06-28 Paper Machinery Corporation Cup making machine
US20020053190A1 (en) * 1998-05-29 2002-05-09 Upm-Kymmene Corporation Method and packaging machine for forming a container, a blank web and a filled container

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US20060021298A1 (en) 2006-02-02 application
WO2004089611A8 (en) 2005-10-20 application
EP1617992B1 (en) 2006-09-27 grant
DK1617992T3 (en) 2007-02-05 grant
FR2853583A1 (en) 2004-10-15 application
CA2521636A1 (en) 2004-10-21 application
DE602004002586D1 (en) 2006-11-09 grant
EP1617992A2 (en) 2006-01-25 application
CN1771121A (en) 2006-05-10 application
DE602004002586T2 (en) 2007-06-28 grant
ES2274445T3 (en) 2007-05-16 grant
JP2006522694A (en) 2006-10-05 application
WO2004089611A3 (en) 2005-03-31 application

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