Packaging manufacturing process

Abstract

The invention relates to a method for making packaging with a pre-cut side panel: cutting a sheet to create a pre-cut side panel and forming packaging with the following sub-steps: folding the front flap (21) and the rear flap (23) relative to the base (20), along with the lower side flaps (22a) and the fastening elements (26); attaching the fastening elements (26) to the lower side flaps (22a); folding down the lid face (24); and bridging the partitions of the lid face (24). Figure for the abstract: Fig. 5

Description

Title of the invention: Method for making packaging Technical field of the invention

[0001] The present invention relates to a method for manufacturing packaging. It is particularly applicable in the field of industrial packaging manufacturing. Prior art

[0002] Industrial packaging plays a vital role in protecting, securing, and transporting products throughout the supply chain, ensuring their integrity from production to final destination. This packaging must meet stringent requirements while adapting to technological advancements, increasing expectations for environmental sustainability, and applicable standards.

[0003] Some prior art documents also propose industrial packaging. For example, publication document FR2970706 describes a device for holding or securing food with a plastic lid.

[0004] However, in the document, for the device to work, a box with the correct dimensions is needed to hold or secure the food, all made of cardboard. Presentation of the invention

[0005] The present invention aims to remedy these drawbacks with a totally innovative approach.

[0006] More specifically, the invention aims to provide a method for making cardboard packaging.

[0007] An objective of the invention is to provide such a method, which can be easily adapted to existing systems.

[0008] These objectives, as well as others that will appear subsequently, are achieved, according to a first aspect, by means of a method for producing packaging having a pre-cut side, remarkable in that the method comprises the steps

[0009] successive following: a) cut a sheet for making a pre-cut cardboard side panel; said pre-cut side panel comprises a base having four sides, two lower side flaps arranged on two opposite sides of said base, a front flap positioned on another side of the base, a rear flap positioned opposite the front flap with respect to the base, said front flap and said rear flap each having two fastening elements positioned on either side of the front flap or the rear flap, a lid face positioned on the rear flap on a side opposite the base, said lid face having two fastening elements on either side, a closing flap positioned on the lid face on a side opposite the rear flap; said rear flap having at least one notch; the lid face having a plurality of partitions; said plurality of partitions having at least one lug; b) form a package from the pre-cut side of the previous step comprising the following sub-steps: 1) Fold the front front flap, the rear flap with the lower side flaps and the fixing elements together towards the bottom to form an open box; fix the fixing elements to the lower side flaps; 2) fold down the lid face, covering the open box; 3) form bridges with the partitions of the lid face.

[0010] Thanks to these arrangements, folding the front, rear, and side flaps allows a stable open box to be formed. The fastening elements ensure structural strength and hold the flaps in place, guaranteeing the formation of a well-defined and robust box.

[0011] By folding the lid face down on the open box, the packaging is partially closed, which helps to protect the contents while facilitating a more secure subsequent closure.

[0012] The partitions of the lid face, once folded into bridges, reinforce the structure of the packaging and allow internal separation of the contents, which can prevent the movement or mixing of the packaged items.

[0013] The invention is advantageously implemented according to the embodiments and variants set out below, which are to be considered individually or according to any technically operative combination.

[0014] In one embodiment, during step a) of cutting a sheet, the front front flap and the closing flap have a plurality of "U" shaped openings.

[0015] Thanks to these arrangements, these openings make it easier to apply the product after final packaging.

[0016] In one embodiment, during step a), the sheet is made of cardboard defined according to a cutting thickness between 0.3 mm and 1.6 mm or of cardboard defined according to a basis weight between 100 g / m2 and 400 g / m2.

[0017] In one embodiment, during step 3), said plurality of partitions being in contact with the bottom or being partial along a portion of the height of the open box.

[0018] Thanks to these arrangements, the partitions prevent the products from mixing.

[0019] In one embodiment, during step 1) of fixing the fastening elements in the lower side flaps, said fixing is made by an adhesive element or a mechanical element cooperating with a pre-cut on the lower side flaps and configured to prevent the formation of the open box.

[0020] Thanks to these provisions, it is possible to obtain a solid and robust packaging during its movement.

[0021] In one embodiment, during step a) the pre-cut side has a rounded shape on the lid face at the level of the partitions.

[0022] In one embodiment, during step a) the bottom has at least one notch positioned below the partitions configured to hold the solid partitions in a fixed position.

[0023] Thanks to these arrangements, the notches allow the packaging to have a locked structure.

[0024] In one embodiment, during step 1), said two fixing elements of the cover face are fixed on upper side flaps.

[0025] In one embodiment, during step a), the upper side flaps have an opening and / or at least one pre-cut cooperating with the upper side flaps.

[0026] Thanks to these arrangements, the pre-cutting makes it possible to keep the elements of the packaging together.

[0027] In one embodiment, during step 3) of bridging with the plurality of partitions, the length of the partitions is greater than the length of the cover face; the lug being configured to cooperate with the notch of the rear flap or the front flap.

[0028] Thanks to these arrangements, it is easy to insert the lugs into the notches to lock the position of the partitions. Brief description of the figures

[0029] Other advantages, purposes and features of the present invention will become apparent from the following description, given for explanatory purposes only and not as a limitation, with reference to the accompanying drawings, in which:

[0030] Fig. 1 represents a plan showing a pre-cut side;

[0031] Figure 2 represents a variant of a pre-cut side plan

[0032] Fig. 3 represents another variant of a plan of a pre-cut side;

[0033] The [Fig.4] represents a variant of a pre-cut side;

[0034] Fig. 5 represents the final packaging of the opened box. Description of the implementation methods

[0035] Fig. 1 shows a plan showing a pre-cut side.

[0036] The pre-cut side comes from a cardboard sheet having a cutting thickness or a grammage.

[0037] The cutting thickness is between 0.3 mm and 1.6 mm.

[0038] The basis weight is between 100 g / m2 and 400 g / m2.

[0039] This figure shows all the pre-cut parts of the side.

[0040] The pre-cut parts are: a base 20, a front front flap 21, a lid face 24, a rear flap 23, fixing elements 26, lower side flaps 22a, a plurality of partitions 27, a closing flap 25.

[0041] According to an example produced, the pre-cut side has a length between 130 mm and 700 mm and a width between 150 mm and 360 mm.

[0042] The base 20 has four sides.

[0043] According to one embodiment, the base 20 has a length between 90 mm and 280 mm, and a width between 65 mm and 170 mm.

[0044] The front flap 21 and the rear flap 23 being positioned opposite on one side of the bottom 20.

[0045] The lower side flaps 22a being positioned opposite on one side of the bottom 20.

[0046] The front front flap 21, the rear flap 23 and the lower side flaps 22a have a height between 20 mm and 90 mm.

[0047] The front front flap 21 has two fixing elements 26 positioned opposite and on either side of the front front flap 21.

[0048] According to one embodiment, the front front flap 21 has at least one notch 28.

[0049] This notch 28 allows another part of the pre-cut side to be clipped with the front flap 21 forming a package.

[0050] The rear flap 23 has at least one notch 28.

[0051] The notch 28 of the front flap 21 and the rear flap 23 have a length between 22 mm and 12 mm and a width between 10 mm and 4 mm. According to one variant, the length is 16 mm and the width is 7 mm.

[0052] According to another variant, the width is 5.5 mm.

[0053] The rear flap 23 has two fastening elements 26 positioned opposite each other on either side of the rear flap 23.

[0054] According to one variant, the fastening elements 26 of the front flap 21 and of the rear flap 23 are adhesive elements or mechanical elements.

[0055] The cover face 24 has two fixing elements 26 positioned opposite each other on either side of the cover face 24. These two fixing elements 26 of the cover face 24 have a height between 20 mm and 88.5 mm.

[0056] The two fixing elements 26 of the cover face 24 are upper side flaps 22b.

[0057] The upper side flaps 22b are partial or full.

[0058] The closing flap 25 is positioned on the lid face 24 on a side opposite the rear flap 23.

[0059] According to an example produced, the closing flap 25 has a height between 20 mm and 88.5 mm.

[0060] The lid face 24 has a plurality of partitions 27. This plurality of partitions 27 has at least one lug 29 configured to cooperate with the rear flap 23.

[0061] The pre-cut side has a rounded shape on the lid face 24 at the level of the partitions.

[0062] This rounded shape has a diameter radius between 10 mm and 18 mm. According to one variant, the diameter radius is 14 mm.

[0063] This allows it to conform to the shape of the cover face 24 and to allow the lug 29 of the partitions to be inserted into the rear flap 23.

[0064] The plurality of partitions has a height between 20 mm and 90 mm and a thickness between 3 mm and 16 mm.

[0065] This configuration allows the final shape of the packaging to be maintained in case of movement.

[0066] The plurality of partition is partial or full.

[0067] The length of the partitions is greater than the length of the cover face 24. This allows the lug 29 of the plurality of partitions 27 to cooperate with the notch 28 of the rear flap 23 and to hold the partitions in a fixed position.

[0068] During installation, the partitions are folded towards the direction of gravity.

[0069] According to one variant, the cover face 24 has six partitions forming three bridges.

[0070] The bridges are shown on the packaging when the pre-cut side is formed.

[0071] During side panel formatting, the base 20, the front front flap 21, the rear flap 23 with the lower side flaps 22a and the fastening elements 26 are folded to form an open box.

[0072] The lid face 24 is folded down onto the open box. This allows for packaging.

[0073] According to one variant, the base 20 has at least one notch 28 positioned below the partitions.

[0074] Naturally, the invention is described above by way of example. It is understood that a person skilled in the art is able to carry out different embodiments of the invention without departing from the scope of the invention.

[0075] Fig. 2 shows a variant of a plan of a pre-cut side.

[0076] This figure reproduces the same characteristics stated in the previous figure.

[0077] The fastening elements 26 of the front flap 21 and the rear flap 23 have a shoulder defining a locking tab.

[0078] The lower side flaps 22a have a notch 28 allowing the locking tabs to be inserted and thus locking the position of the open box during the formation of the package.

[0079] According to one variant, the partition comprises another lug 29 positioned opposite the lug 29 cooperating with the rear flap 23.

[0080] Fig. 3 shows another variant of a plan of a pre-cut side.

[0081] This figure reproduces the same characteristics stated in [Fig.1].

[0082] The front front flap 21 and the closing flap 25 have a plurality of "U" shaped openings.

[0083] These openings make it easier to apply the product after final packaging.

[0084] Fig. 4 shows a variant of a pre-cut side.

[0085] This figure reproduces the same characteristics stated in [Fig.1].

[0086] According to this variant of the pre-cut side, the lid face 24 comprises eight partitions forming four bridges.

[0087] Fig. 5 represents the final packaging of the opened box.

[0088] During the packaging assembly, the pre-cut side includes sub-steps to obtain the open box.

[0089] The open box is formed when the front front flap 21 is folded with the lower side flaps 22a and the fastening elements 26 relative to the bottom 20.

[0090] The lid face 24 is folded down onto the open box.

[0091] The partitions of the lid face 24 form bridges.

[0092] According to one embodiment, the upper side flaps 22b have a height equal to or less than the height of the lower side flaps 22a.

[0093] According to an example made, the plurality of partition 27 has a height equal to or less than the height of the lower side flaps 22a.

[0094] In the figure the height of the partitions is half the height of the box.

[0095] With an identical height, the plurality of partitions includes lugs positioned along the length of the partitions and are held by the notches 28 of the bottom 20.

[0096] Each partition is alternated with each other and each is held by a notch 28.

[0097] The fastening element 26 of the rear flap 23 is housed between one of the lower side flaps 22a and a partition. This helps to maintain the open shape of the box for final packaging.

[0098] When the cover face 24 is installed, the closing flap 25 conforms to the shape of the front flap and is fixed by an adhesive element or a mechanical element on it.

[0099] It is emphasized that all features, as they are apparent to a person skilled in the art from the present description, drawings and features attached, even if in practice they have only been described in relation to other specific characteristics, both individually and in any combinations, can be combined with other characteristics or groups of characteristics disclosed here, provided that this has not been expressly excluded or that technical circumstances make such combinations impossible or meaningless. List of reference signs

[0100] [Tables] References Designations 20 Base 21 Front flap 22a Lower side flap 22b Upper side flap 23 Rear flap 24 Lid face 25 Closing flap 26 Fixing element 27 Multiple partitions 28 Notch 29 Lug

Claims

Demands

1. Method for making a package comprising a pre-cut side, characterized in that the method comprises the following successive steps: a) cutting a sheet to make a pre-cut cardboard side;said pre-cut side comprises, a base (20) having four sides, two lower side flaps (22a) arranged on two opposite sides of said base (20), a front front flap (21) positioned on another side of the base (20), a rear flap (23) positioned opposite the front front flap (21) with respect to the base (20), said front front flap (21) and said rear flap (23) each comprising two fastening elements (26) positioned on either side of the front front flap (21) or the rear flap (23), a cover face (24) positioned on the rear flap (23) on a side opposite the base (20), said cover face (24) comprising on either side two fastening elements (26), a closing flap (25) positioned on the cover face (24) on a side opposite the rear flap (23); said rear flap (23) comprising at least one notch (28); the lid face (24) comprises a plurality of partitions (27); said plurality of partitions (27) comprises at least one lug (29);b) form a package from the pre-cut side of the previous step comprising the following sub-steps: 1) fold relative to the base (20), the front front flap (21), the rear flap (23) with the lower side flaps (22a) and the fastening elements (26) forming an open box; attach the fastening elements (26) to the lower side flaps (22a); 2) fold down the lid face (24) covering the open box; 3) form bridges with the partitions of the lid face (24).

2. A method according to claim 1, wherein, during step a) of cutting a sheet, the front front flap (21) and the closing flap (25) have a plurality of U-shaped openings

3. ”. Method according to claim 1, wherein in step a), the sheet is made of cardboard defined according to a cutting thickness of between 0.3 mm and 1.6 mm or of cardboard defined according to a basis weight of between 100 g / m2 and 400 g / m2.

4. Method according to claim 1, wherein in step 3), said plurality of partitions (27) being in contact with the bottom (20) or being partial along a portion of the height of the open box.

5. Method according to claim 1, during step 1) of fixing the fixing elements (26) in the lower side flaps (22a), said fixing is made by an adhesive element or a mechanical element cooperating with a pre-cut on the lower side flaps (22a) and configured to block the formation of the open box.

6. Method according to claim 1, wherein in step a) the pre-cut side has a rounded shape on the lid face (24) at the level of the partitions.

7. A method according to claim 1, wherein in step a) the bottom (20) has at least one notch (28) positioned below the partitions configured to hold the solid partitions in a fixed position.

8. Method according to claim 1, wherein in step 1), said two fixing elements (26) of the cover face (24) are fixed on upper side flaps (22b).

9. A method according to claim 8, wherein in step a), the upper side flaps (22b) have an opening and / or at least one pre-cut cooperating with the upper side flaps (22b).

10. A method according to claim 1, wherein in step 3) of bridging with the plurality of partitions (27), the length of the partitions is greater than the length of the cover face (24); the lug (29) being configured to cooperate with the notch (28) of the rear flap (23) or the front flap (21).

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