CN115817968A - Paper-plastic combined butterfly inward-folding paper box - Google Patents
Paper-plastic combined butterfly inward-folding paper box Download PDFInfo
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- CN115817968A CN115817968A CN202211497358.0A CN202211497358A CN115817968A CN 115817968 A CN115817968 A CN 115817968A CN 202211497358 A CN202211497358 A CN 202211497358A CN 115817968 A CN115817968 A CN 115817968A
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- box body
- plate
- carton
- set square
- box
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- 239000004033 plastic Substances 0.000 title claims abstract description 49
- 229920003023 plastic Polymers 0.000 title claims abstract description 49
- 239000000123 paper Substances 0.000 claims abstract description 20
- 238000007789 sealing Methods 0.000 claims abstract description 19
- 239000011087 paperboard Substances 0.000 claims abstract description 15
- 239000011111 cardboard Substances 0.000 claims description 8
- 239000011324 bead Substances 0.000 claims description 7
- 238000007493 shaping process Methods 0.000 claims description 4
- 238000004891 communication Methods 0.000 claims description 2
- 230000007306 turnover Effects 0.000 claims description 2
- 239000007788 liquid Substances 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 238000002791 soaking Methods 0.000 description 2
- 210000002489 tectorial membrane Anatomy 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000011550 stock solution Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Images
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/80—Packaging reuse or recycling, e.g. of multilayer packaging
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- Cartons (AREA)
Abstract
The invention discloses a paper-plastic combined butterfly inward-folding paper box which comprises a box body and a circle of plastic parts wrapped on the edge opening of the box body, wherein the box body is formed by folding a plane paper board, the paper board comprises a bottom plate for forming a box bottom and a box body connected around the edge of the bottom plate, the box body comprises a plurality of side plates and a foldable sealing connecting plate for enabling adjacent side plates to be connected seamlessly, two folding lines are arranged on the sealing connecting plate for dividing the sealing connecting plate into a first triangular plate, a second triangular plate and a third triangular plate, the first triangular plate and the third triangular plate are respectively positioned on two sides of the second triangular plate and are respectively connected with one side plate, when the paper box is formed, the first triangular plate and the third triangular plate are both turned outwards and are connected with the outer surface of the second triangular plate, and the inner surfaces of the first triangular plate and the third triangular plate are respectively connected with the inner surfaces of the adjacent side plates, so that the box body has a stronger leakage-proof function and structural strength.
Description
Technical Field
The invention relates to the technical field of food packaging, in particular to a paper-plastic combined butterfly inner folding paper box.
Background
The existing leakage-proof paper box on the market is generally a paper bowl formed by bonding a plurality of pieces of paper or a square corner box formed by folding and bonding an integrated paperboard, but whichever is the above, one is that the structural strength of the leakage-proof paper box in the prior art is limited by the thickness of the paperboard, and when the paperboard is thin, the structural strength of the leakage-proof paper box is low, so that the leakage-proof paper box is easy to deform, and a customer feels that the texture of the leakage-proof paper box is low; secondly, the leak-proof paper box is provided with a connecting seam for splicing the paper boards or a cut surface of the paper boards, and liquid can leak from the connecting part of the paper boards or the cut surface of the paper boards under long-time soaking, so that the paper box is soaked and damaged by the liquid.
Disclosure of Invention
The invention aims to provide a paper-plastic combined butterfly inward-folding paper box, which solves the problem that a leakage-proof paper box in the prior art cannot resist liquid soaking for a long time.
The purpose of the invention can be realized by the following technical scheme:
the utility model provides a paper is moulded and is combined fashioned butterfly infolding carton, is in including box body and parcel round working of plastics on the box body bead, the box body is formed by a plane cardboard is folding, and the cardboard is including the bottom plate that is used for forming the box end and center on bottom plate edge connection's box body, the box body includes a plurality of curb plates and makes adjacently seamless connection's collapsible sealing connection board between the curb plate, a serial communication port, be equipped with two folding lines on the sealing connection board and cut apart into first set square, second set square and third set square with it, first set square with the third set square is located respectively second set square both sides and respectively with one the curb plate is connected, during the carton shaping, first set square with the third set square all outwards turn over with second set square surface connection, first set square with the internal surface of third set square respectively rather than adjacent curb plate internal surface connection.
As a further scheme of the invention: after the paper box is formed, the adjacent side plates are in butt joint.
As a further scheme of the invention: after the paper box is formed, the top end faces of the first triangular plate, the second triangular plate and the third triangular plate are flush.
As a further scheme of the invention: after the box body is formed, the top end face of the second triangular plate is lower than the edge end face of the box body to form an avoiding step, the plastic part comprises a plastic part main body bonded with the inner surface of the side plate and a covered plastic part bonded with the top of the inner surface of the second triangular plate, and a step face bonded with the avoiding step is arranged between the plastic part main body and the covered plastic part.
As a further scheme of the invention: the working of plastics main part includes the closing plate and locates the first hem and the second hem of closing plate lower extreme both sides edge respectively, the closing plate is located the bead terminal surface top of box body and part extend to the box body outside, first hem with curb plate internal surface bond and with the working of plastics integrated into one piece of borduring, the second hem with the interval has between the curb plate.
As a further scheme of the invention: the bottom end face of the first folded edge is the step face, and the covered edge plastic part is integrally formed on the outer surface of the first folded edge and partially extends to the position below the first folded edge.
As a further scheme of the invention: the paperboard is paperboard coated with a film or a film on the inner side.
As a further scheme of the invention: the box body is a square round box.
As a further scheme of the invention: the box body is a square pointed box.
The invention has the beneficial effects that: this application makes a carton folding forming of box body accessible through set up sealing connection board between adjacent curb plate, and the box body internal surface after the shaping does not have the cardboard tangent plane, makes the box body have stronger leak protection function, and box body knuckle department forms three-layer overlapping structure, and the box body is equipped with the working of plastics along a mouthful department, makes the box body have stronger structural strength, avoids warping.
Drawings
The invention will be further described with reference to the accompanying drawings.
FIG. 1 is a schematic structural view of a box body in the invention, wherein the box body is in a square round angle shape;
FIG. 2 is a schematic structural view of the case body in an unfolded state in the present invention;
FIG. 3 is a schematic structural view of a molded case of the present invention;
FIG. 4 is a schematic view of the structure at A in FIG. 3;
FIG. 5 is a cross-sectional view of FIG. 1;
FIG. 6 is a schematic view of the structure at B in FIG. 5;
FIG. 7 is a schematic view showing the structure of the box body with square sharp corners in the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-2, the present invention is a paper-plastic combined butterfly inward-folding carton, which comprises a carton body 1 and a ring of plastic parts 2 wrapped on the edge of the carton body 1, wherein the carton body 1 is formed by folding a flat paperboard, the paperboard comprises a bottom plate 11 for forming a carton bottom and a carton body connected around the edge of the bottom plate 11, and the carton body comprises a plurality of side plates 12 and a foldable sealing connecting plate 13 for seamlessly connecting the adjacent side plates 12. Specifically, the bottom plate 11 is polygonal, and may be configured as a quadrangle, a pentagon, a hexagon, and the like, which are not limited herein. The side plates 12 are trapezoidal plates with bottom ends connected with the folding lines of the bottom plate 11, the sealing connecting plate 13 is a fan-shaped plate, two folding lines distributed along the radial direction are arranged on the sealing connecting plate 13 to divide the sealing connecting plate 13 into a first triangular plate 131, a second triangular plate 132 and a third triangular plate 133, and the first triangular plate 131 and the third triangular plate 133 are respectively positioned at two sides of the second triangular plate 132 and are respectively connected with the adjacent side plates 12 through the folding lines.
When the box body 1 is formed, the side plates 12 are upwards turned relative to the bottom plate 11, the first triangular plate 131 and the third triangular plate 133 are turned to the outer side of the second triangular plate 132, the adjacent side plates 12 are close to each other until the outer surfaces of the first triangular plate 131 and the third triangular plate 133 are attached to the outer surface of the second triangular plate 132, and the inner surfaces of the first triangular plate 131 and the third triangular plate 133 are respectively attached to the inner surfaces of the adjacent side plates 12. The outer surfaces of the first triangular plate 131 and the third triangular plate 133 are bonded with the outer surface of the second triangular plate 132, the inner surfaces of the first triangular plate 131 and the third triangular plate 133 are bonded with the inner surfaces of the adjacent side plates 12, so that the second triangular plate 132 is bent to form a conical bevel, after the paper box 1 is formed, the bevel of the box body 1 forms a three-layer structure which is overlapped inside and outside, the strength of the bevel of the box body 1 is greatly improved, and the bevel of the box body 1 is not easy to damage. And the internal surface of box body 1 in this application does not contain the section of cardboard, has promoted the leak protection performance of box body 1. 2 parcel box body beads of working of plastics, improve the structural strength of 1 bead department of box body, prevent that the box body bead from warping, and through the setting of working of plastics, the lid of being convenient for is closed and is sealed it on the box body.
As shown in fig. 2-3, further, the first triangle 131 and the third triangle 133 are right triangles symmetrically disposed on two sides of the second triangle 132, the second triangle 132 is an isosceles triangle, after the box body 1 is formed, one side of each of the first triangle 131 and the third triangle 133 is aligned with the foot line of the second triangle 132, so that the adjacent side plates 12 are butted, and the influence of the excessive splicing seam between the adjacent side plates 12 on the overall aesthetic degree of the box body 1 is avoided.
Further, the hypotenuse of first set square 131 and third set square 133 equals with the side length of second set square 132, and box body 1 shaping back, first set square 131 second set square 132 with third set square 133 top end face flushes, makes second set square 132 coincide with the integrated configuration of first set square 131 and third set square 133.
Further, as shown in fig. 3-4, after the box body 1 is formed, the heights of the first triangle 131, the second triangle 132 and the third triangle 133 are smaller than the height of the side plate 12, so that the top end surface of the second triangle 132 is lower than the edge end surface of the box body 1 to form the avoiding step 14. The plastic part 2 comprises a plastic part main body 21 and a wrapping plastic part 22 which are integrally formed, a step surface 23 is arranged between the plastic part main body 21 and the wrapping plastic part 22, when the plastic part 2 is installed, the box body 1 is placed into an injection mold, plastic stock solution in a molten state is filled into the mold and is bonded with the box body 1 to form the plastic part 2, the formed plastic part main body 21 is bonded on the inner surface of the side plate 12 around the edge, the wrapping plastic part 22 is bonded on the top of the inner surface of the second triangular plate 132, and the step surface 23 is bonded on the avoidance step 14. Make working of plastics main part 21 parcel only by the one deck structure that curb plate 12 formed, the working of plastics 22 parcel of borduring is by the folding three layer construction who forms of curb plate 12 and sealing connection board 13, improves the fastness that bonds between working of plastics 2 and the box body 1, avoids the transition department of three layer construction and one deck structure to influence the combination of working of plastics 2 and box body 1.
Referring to fig. 5-6, the plastic body 21 has a generally U-shaped cross section, and includes a sealing plate 211 disposed above the rim end surface, and a first folding edge 212 and a second folding edge 213 disposed on two side edges of the lower end of the sealing plate 211, respectively, wherein the sealing plate 211 partially extends to the outside of the case body 1, such that a space is formed between the second folding edge 213 and the side plate 12, and the first folding edge 212 is adhered to the inner surface of the side plate 12 and integrally formed with the plastic body 22. The plastic body 21 can be used to match the lid to seal the case 1, and the lid can be fastened to the second flange 213 for fixation.
Furthermore, the bottom end surface of the first folding edge 212 is the step surface 23, and the folding plastic part 22 is integrally formed on the outer surface of the first folding edge 212 and partially extends to the lower part of the first folding edge 212, so that the thickness of the first folding edge 212 does not need to exceed the thickness of the first triangular plate 131 and the second triangular plate 132 after being folded, the plastic consumption of the first folding edge 212 is reduced, and the overall weight of the three-dimensional box type is reduced.
The cardboard of the membrane or tectorial membrane is only drenched to the inboard preferred adoption of cardboard, drenches the material of membrane or tectorial membrane and can be PP or PBS, makes the box body 1 internal surface have grease proofing waterproof function and make between working of plastics 2 and the box body 1 can not need to paint glue very firm that can bond, improves the production efficiency of three-dimensional box type. When the first triangle 131, the third triangle 133 and the second triangle 132 are bonded, the adhesive coating can be avoided by coating the outer surface of the second triangle 132 with a weldable gloss oil (e.g., an aqueous ultrasonic gloss oil).
In one embodiment, the carton is a square corner box (see fig. 1).
In one embodiment, the carton is a square corner box (see fig. 7).
While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention and should not be taken as limiting the scope of the invention. All equivalent changes and modifications made within the scope of the present invention shall fall within the scope of the present invention.
Claims (9)
1. The utility model provides a paper is moulded and is combined fashioned butterfly infolding carton, is in including box body and parcel round working of plastics on the box body bead, the box body is formed by a plane cardboard is folding, and the cardboard is including the bottom plate that is used for forming the box end and center on bottom plate edge connection's box body, the box body includes a plurality of curb plates and makes adjacently seamless connection's collapsible sealing connection board between the curb plate, a serial communication port, be equipped with two folding lines on the sealing connection board and cut apart into first set square, second set square and third set square with it, first set square with the third set square is located respectively second set square both sides and respectively with one the curb plate is connected, during the carton shaping, first set square with the third set square all outwards turn over with second set square surface connection, first set square with the internal surface of third set square respectively rather than adjacent curb plate internal surface connection.
2. A fold-in carton as claimed in claim 1, wherein the adjacent side panels abut after the carton is formed.
3. The in-folded carton of claim 1, wherein the first, second and third triangular panels are top end faces flush after the carton is formed.
4. The inner-folding carton according to claim 1, wherein after the carton body is formed, the top end face of the second triangular plate is lower than the end face of the rim of the carton body to form an avoidance step, the plastic part comprises a plastic part main body bonded with the inner surface of the side plate and a covered plastic part bonded with the top of the inner surface of the second triangular plate, and a step face bonded with the avoidance step is arranged between the plastic part main body and the covered plastic part.
5. The fold-in carton of claim 4, wherein the main body of plastic part comprises a sealing plate and a first and a second folded edge respectively disposed at two side edges of a lower end of the sealing plate, the sealing plate is located above the bead end surface of the box body and partially extends to the outer side of the box body, the first folded edge is bonded to the inner surface of the side plate and is integrally formed with the plastic part, and the second folded edge is spaced from the side plate.
6. The fold-in carton of claim 5, wherein the bottom end surface of the first flap is the stepped surface, and the hemmed plastic is integrally formed on the outer surface of the first flap and extends partially below the first flap.
7. The inner-folding carton according to claim 1, characterized in that the paperboard is a paperboard with inner side film or film.
8. The fold-in carton of claim 1, wherein the box body is a square and round box.
9. The fold-in carton of claim 1, wherein the box body is a square-shaped corner box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211497358.0A CN115817968A (en) | 2022-11-25 | 2022-11-25 | Paper-plastic combined butterfly inward-folding paper box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211497358.0A CN115817968A (en) | 2022-11-25 | 2022-11-25 | Paper-plastic combined butterfly inward-folding paper box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115817968A true CN115817968A (en) | 2023-03-21 |
Family
ID=85531954
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211497358.0A Pending CN115817968A (en) | 2022-11-25 | 2022-11-25 | Paper-plastic combined butterfly inward-folding paper box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115817968A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB512344A (en) * | 1938-04-21 | 1939-09-01 | Dennis Wood | Improvements in cartons or like containers for liquids, powders or the like |
| EP0089033A1 (en) * | 1982-03-12 | 1983-09-21 | International Paper Company | Container with raw edge protection |
| JPH07300130A (en) * | 1994-05-09 | 1995-11-14 | Masakatsu Shikura | Foldable box |
| CA2774830A1 (en) * | 2002-03-15 | 2003-09-25 | Graphic Packaging International, Inc. | Container having a rim or other feature encapsulated by or formed from injection-molded material |
| CN111483672A (en) * | 2020-05-20 | 2020-08-04 | 浙江誉禾科技发展有限公司 | Folding leak-proof paper box |
| US20210130055A1 (en) * | 2019-10-30 | 2021-05-06 | Ningbo Freshly Packaging Co., Ltd. | Paper preservation box |
| CN112810943A (en) * | 2019-11-18 | 2021-05-18 | 上海紫丹食品包装印刷有限公司 | Single-side inner-side rubber-coated paper-plastic combined formed packaging box |
-
2022
- 2022-11-25 CN CN202211497358.0A patent/CN115817968A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB512344A (en) * | 1938-04-21 | 1939-09-01 | Dennis Wood | Improvements in cartons or like containers for liquids, powders or the like |
| EP0089033A1 (en) * | 1982-03-12 | 1983-09-21 | International Paper Company | Container with raw edge protection |
| JPH07300130A (en) * | 1994-05-09 | 1995-11-14 | Masakatsu Shikura | Foldable box |
| CA2774830A1 (en) * | 2002-03-15 | 2003-09-25 | Graphic Packaging International, Inc. | Container having a rim or other feature encapsulated by or formed from injection-molded material |
| US20210130055A1 (en) * | 2019-10-30 | 2021-05-06 | Ningbo Freshly Packaging Co., Ltd. | Paper preservation box |
| CN112810943A (en) * | 2019-11-18 | 2021-05-18 | 上海紫丹食品包装印刷有限公司 | Single-side inner-side rubber-coated paper-plastic combined formed packaging box |
| CN111483672A (en) * | 2020-05-20 | 2020-08-04 | 浙江誉禾科技发展有限公司 | Folding leak-proof paper box |
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