CN107097468B - Moisture-keeping packaging box - Google Patents

Moisture-keeping packaging box Download PDF

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Publication number
CN107097468B
CN107097468B CN201710271312.XA CN201710271312A CN107097468B CN 107097468 B CN107097468 B CN 107097468B CN 201710271312 A CN201710271312 A CN 201710271312A CN 107097468 B CN107097468 B CN 107097468B
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CN
China
Prior art keywords
regular hexagonal
layer
rigid bearing
hexagonal ring
supporting column
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Application number
CN201710271312.XA
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Chinese (zh)
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CN107097468A (en
Inventor
余赞
田璐
罗臻
韦雪雪
张勇军
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Changde Deyuan Investment Promotion Co ltd
Changde Jinde New Material Technology Co Ltd
Original Assignee
Changde Jinde Laser Technology Co Ltd
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Priority to CN201710271312.XA priority Critical patent/CN107097468B/en
Publication of CN107097468A publication Critical patent/CN107097468A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B1/00—Layered products having a general shape other than plane
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/10—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of paper or cardboard
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B29/00—Layered products comprising a layer of paper or cardboard
    • B32B29/02—Layered products comprising a layer of paper or cardboard next to a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form
    • B32B3/02—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by features of form at particular places, e.g. in edge regions
    • B32B3/08—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by features of form at particular places, e.g. in edge regions characterised by added members at particular parts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form
    • B32B3/02—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by features of form at particular places, e.g. in edge regions
    • B32B3/08—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by features of form at particular places, e.g. in edge regions characterised by added members at particular parts
    • B32B3/085—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by features of form at particular places, e.g. in edge regions characterised by added members at particular parts spaced apart pieces on the surface of a layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form
    • B32B3/10—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material
    • B32B3/18—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material characterised by an internal layer formed of separate pieces of material which are juxtaposed side-by-side
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/24—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants
    • B65D81/26—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants with provision for draining away, or absorbing, or removing by ventilation, fluids, e.g. exuded by contents; Applications of corrosion inhibitors or desiccators
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D4/00—Coating compositions, e.g. paints, varnishes or lacquers, based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond ; Coating compositions, based on monomers of macromolecular compounds of groups C09D183/00 - C09D183/16
    • C09D4/06—Organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond in combination with a macromolecular compound other than an unsaturated polymer of groups C09D159/00 - C09D187/00
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H19/00—Coated paper; Coating material
    • D21H19/10—Coatings without pigments
    • D21H19/14—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H19/00—Coated paper; Coating material
    • D21H19/10—Coatings without pigments
    • D21H19/14—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12
    • D21H19/20—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12 comprising macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D21H19/22—Polyalkenes, e.g. polystyrene
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H19/00—Coated paper; Coating material
    • D21H19/10—Coatings without pigments
    • D21H19/14—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12
    • D21H19/24—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12 comprising macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
    • D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
    • D21H27/30—Multi-ply
    • D21H27/38—Multi-ply at least one of the sheets having a fibrous composition differing from that of other sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2250/00—Layers arrangement
    • B32B2250/40—Symmetrical or sandwich layers, e.g. ABA, ABCBA, ABCCBA
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2255/00—Coating on the layer surface
    • B32B2255/12—Coating on the layer surface on paper layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/10—Inorganic fibres
    • B32B2262/106—Carbon fibres, e.g. graphite fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2266/00—Composition of foam
    • B32B2266/02—Organic
    • B32B2266/0214—Materials belonging to B32B27/00
    • B32B2266/0278—Polyurethane
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/558—Impact strength, toughness
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2439/00—Containers; Receptacles
    • B32B2439/40—Closed containers
    • B32B2439/62—Boxes, cartons, cases

Abstract

The utility model provides a moist packing box, box include bottom plate, side board and roof, all adopt the multilayer material complex to form including bottom plate, side board and roof, include outer panel, interior panel and the sandwich layer between outer panel and the interior panel, the sandwich layer includes upper strata, lower floor and bearing structure, and the upper strata is formed by connecting each other a plurality of regular hexagon ring on the coplanar, and the lower floor is formed by connecting each other a plurality of regular hexagon ring on the coplanar equally. The structure design is scientific and reasonable, and the device has a good balanced stress structure and good impact resistance. Because its inside load-carrying structure is reasonable, and all directions atress are balanced, can effectively resist the impact force that comes from all directions, avoid the packing box to take place deformation under the different angle exogenic actions, avoid damaged, can protect the inside article of packing box well.

Description

Moisture-keeping packaging box
Technical Field
The invention relates to the packaging industry, in particular to a moisture-preserving packaging box.
Background
In the field of packaging industry, higher requirements are provided for the mechanical property of the packaging box. The packing box needs to bear force, and is difficult to avoid extrusion and collision in the processes of carrying, storing and transporting, so that higher requirements are made on the performance of the packing box, particularly the impact resistance. However, the existing packaging carton, especially the internal structure design thereof, is not reasonable, and has the following defects:
the inside corrugated paper, the honeycomb paper of sampling more of current packing box often just considers and designs in the aspect of increasing thickness or increasing strengthening rib etc. in order to increase its impact resistance. Whether the corrugated carton with the wavy structure inside or the honeycomb carton with the honeycomb structure inside, when each front face of the corrugated carton is subjected to impact force, the impact resistance and the buffering capacity of the corrugated carton have good performances. In addition, the impact resistance can meet more requirements by increasing certain thickness or reinforcing ribs. However, in the practical application process of the packing box, the force direction or the impact direction of the packing box is uncertain, and when one side of the packing box is impacted by an inclined angle relative to the panel of the packing box, the stress of the inner structure of the packing box is unbalanced, and the inner structure of the packing box is greatly deformed. For the impact of the inclination angle, the compression resistance and the buffer capacity of the existing packing box are limited, and the local deformation and even damage of the packing box are often easily caused by the impact of the inclination angle.
Meanwhile, the existing packaging industry provides product packaging services for various industries. In the face of different product packages, diversified requirements are put forward on the multifunction of the packaging box, such as heat preservation, fresh preservation, moisture prevention, water prevention, impact resistance, obstruction, flame retardance, antibiosis and the like. Therefore, the design of the packing box is more advanced with time, and the requirements of different industries can be met without limitation.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide the moisture-preserving packaging box which is scientific and reasonable in structural design and has good mechanical properties.
The technical scheme of the invention is as follows:
a moisture-preserving packing box comprises a box body, a bottom plate, side plates and a top plate, and is characterized in that the bottom plate, the side plates and the top plate are all formed by compounding multiple layers of materials and comprise an outer panel, an inner panel and a sandwich layer between the outer panel and the inner panel, the sandwich layer comprises an upper layer, a lower layer and a supporting structure, the upper layer is formed by mutually connecting a plurality of regular hexagonal rings on the same plane, the lower layer is also formed by mutually connecting a plurality of regular hexagonal rings on the same plane, and the size of the regular hexagonal rings in the upper layer is completely the same as that of the regular hexagonal rings in the lower layer; the other three alternate turning points of the regular hexagonal ring on the upper layer are respectively opposite to the turning points of the three regular hexagonal rings on the lower layer; the same lower layer of regular hexagonal ring has three alternate turning points which are respectively opposite to the central points of the upper layer of regular hexagonal ring, and the other three alternate turning points of the lower layer of regular hexagonal ring are respectively opposite to the turning points of the upper layer of regular hexagonal ring; the supporting structures vertically extending to the center points of the lower-layer regular hexagonal ring are arranged on the three alternate turning points on the upper-layer regular hexagonal ring, and the supporting structures vertically extending to the center points of the upper-layer regular hexagonal ring are also arranged on the three alternate turning points on the lower-layer regular hexagonal ring; the supporting structure at least comprises a supporting column in the vertical direction, one end of the supporting column is connected to the corner point, and the other end of the supporting column, namely the outer end of the supporting column, vertically extends to the center point of the right regular hexagon ring.
Furthermore, the support structure further comprises three branch bars positioned on the periphery of one end of the support column, included angles between the three branch bars are 120 degrees, and the three branch bars are respectively and fixedly connected to the outer sides of the three regular hexagonal rings connected at the corner points connected with the support column. The support column can be better fixed on the regular hexagon ring by the three branch edges, the connection between the support structure and the regular hexagon ring is more reliable, and meanwhile, the strength of the regular hexagon ring is effectively enhanced by the three branch edges, so that the support column has better shock resistance.
Furthermore, the outer ends of the support columns connected to the upper layer of the invention are abutted against the inner panel, and the outer ends of the support columns connected to the lower layer are abutted against the outer panel. The support column supports the upper layer and the lower layer, the outer end of the support column abuts against the inner panel and the outer panel, and the support column can be a stress point when the external force impacts. When the external force is impacted in the front direction, the supporting columns and the regular hexagonal rings on the upper layer and the lower layer can effectively resist the external force acted on the supporting columns, and when the external force is impacted in the side face, the supporting columns can incline to a certain extent under the action of the external force in the inclined direction so as to absorb the external force and dissipate the impact of the external force; after the external force is dissipated, the impacted partial regular hexagonal ring and the support columns on the impacted partial regular hexagonal ring can restore the deformation under the traction of the regular hexagonal ring connected with the periphery.
Further, the support column of the present invention may be a rigid support column. The rigid support column has good pressure resistance.
Furthermore, the outer end of the support column is provided with a rigid bearing block which is convex upwards and the outer surface of the rigid bearing block is arc-shaped, the rigid bearing blocks on the outer end of the support column connected to the upper layer are abutted against the inner panel, and the rigid bearing blocks on the outer end of the support column connected to the lower layer are abutted against the outer panel. The outer surface of the rigid bearing block is arc-shaped, when external force is applied to the rigid bearing block, the rigid bearing block can slightly displace under the action of the external force, the displacement enables the external force to deviate on the arc-shaped rigid bearing block (namely the direction of the external force is changed), the external force is dispersed, and therefore the impact force of the external force on a single point is weakened.
Furthermore, the rigid bearing blocks abutted on the inner panel are tightly abutted or gaps between adjacent rigid bearing blocks are smaller than 2 mm; similarly, the rigid bearing blocks abutted against the outer panel are closely abutted with each other or the gaps between the adjacent rigid bearing blocks are all less than 2 mm.
Furthermore, the support column is a flexible support column, and is made of a soft polyurethane foam material; the rigid bearing block is made of high-strength materials, such as high-strength light 3K carbon fiber materials. The supporting column is designed to be a flexible supporting column, so that when an external force acts on the rigid bearing block, the rigid bearing block can slightly displace under the action of the external force to enable the external force to be turned and dispersed, and the flexible supporting column can elastically deform under the action of the external force to absorb the external force, so that the impact resistance of the invention is greatly improved.
Furthermore, the outer panel and the inner panel respectively comprise a surface layer, a barrier film and a high-strength fiber layer from outside to inside, wherein the surface layer is kraft paper coated with a waterproof film.
Further, the barrier film is formed by coating a barrier coating material, and the barrier coating material is prepared from the following raw materials in percentage by weight: 60-90% of PVDC emulsion, 0.2-0.8% of initiator, 1-10% of acrylate monomer, 8-40% of polyurethane prepolymer and 0.15-0.5% of neutralizer. The introduction of polyurethane into the structure of PVDC increases the molecular weight of PVDC and improves the flexibility of PVDC, and the introduction of polyurethane can greatly improve the film forming property of PVDC emulsion, so that the PVDC emulsion can form a film on the surface of paper containing fiber holes, and the improvement of the flexibility can effectively prevent the breakage of a crystallization layer, thereby realizing the high barrier property of paper coating.
Further, the solid content of the PVDC emulsion is 30-65%; the initiator is one or more of potassium persulfate, ammonium persulfate and tert-butyl hydroperoxide; the acrylate monomer is one or more of hydroxyethyl acrylate, hydroxyethyl methacrylate and hydroxypropyl acrylate; the polyurethane prepolymer is formed by polymerizing an isocyanate monomer and a hydroxyl compound; the neutralizing agent is triethylamine.
Furthermore, in order to increase the impact resistance of the packing box at each corner part. Corner protecting strips can be additionally arranged at the corner positions of the packing box. The internal structure of the corner bead is similar to that of the sheet material used for the packing case. The method specifically comprises the following steps: the corner bead comprises an outer panel, an inner panel and a sandwich layer between the outer panel and the inner panel, wherein the sandwich layer comprises an upper layer, a lower layer and a supporting structure, the upper layer is formed by mutually connecting a plurality of regular hexagonal rings on the same plane, the lower layer is also formed by mutually connecting a plurality of regular hexagonal rings on the same plane, and the size of the regular hexagonal rings in the upper layer is completely the same as that of the regular hexagonal rings in the lower layer; the other three alternate turning points of the regular hexagonal ring on the upper layer are respectively opposite to the turning points of the three regular hexagonal rings on the lower layer; the same lower layer of regular hexagonal ring has three alternate turning points which are respectively opposite to the central points of the upper layer of regular hexagonal ring, and the other three alternate turning points of the lower layer of regular hexagonal ring are respectively opposite to the turning points of the upper layer of regular hexagonal ring; the supporting structures vertically extending to the center points of the lower-layer regular hexagonal ring are arranged on the three alternate turning points on the upper-layer regular hexagonal ring, and the supporting structures vertically extending to the center points of the upper-layer regular hexagonal ring are also arranged on the three alternate turning points on the lower-layer regular hexagonal ring; the supporting structure at least comprises a supporting column in the vertical direction, one end of the supporting column is connected to the corner point, and the other end of the supporting column, namely the outer end of the supporting column, vertically extends to the center point of the right regular hexagon ring. Similarly, as a preferred technical solution, the arrangement of the supporting structure and the rigid force-bearing block in the corner bead is the same as that described above, and will not be described herein again.
The beneficial technical effects of the invention are as follows:
1. the invention has scientific and reasonable structural design, good balanced stress structure and good impact resistance. Because its inside load-carrying structure is reasonable, and all directions atress are balanced, can effectively resist the impact force that comes from all directions, avoid the packing box to take place deformation under the different angle exogenic actions, avoid damaged, can protect the inside article of packing box well.
Each regular hexagonal loop in the upper and lower layers of the sandwich layer of the present invention is supported and positioned by up to three support structures (a support structure comprising support columns and three branch edges). When an impact is received, no matter from which direction the impact is, the sandwich layer (no matter the upper layer or the lower layer) is not easy to shift laterally, that is, not easy to deform. This kind of structural design on sandwich layer can make the inner structure of carton itself can not take place deformation when receiving external force and assault, can resist effectively and assault, avoids the local deformation or damage that takes place of carton stress point.
3. In addition, the invention also provides an implementation mode, namely, the outer end of the supporting column is provided with a rigid bearing block which is convex upwards and the outer surface of the supporting column is arc-shaped, and the arrangement of the rigid bearing block can better improve the impact resistance of the invention. When external force acts on the packing box, the rigid bearing block at the stress point can resist large impact force. In addition, the outer surface of the rigid bearing block is arc-shaped, when external force is applied to the rigid bearing block, the rigid bearing block can slightly displace under the action of the external force, the displacement enables the external force to deviate on the arc-shaped rigid bearing block (namely the direction of the external force is changed), the external force is dispersed, and therefore the impact force of the external force on a single point is weakened. Further, the support column is a flexible support column, such as made of a flexible polyurethane foam material; the rigid bearing block is made of high-strength materials, such as high-strength light 3K carbon fiber materials. The supporting column is designed to be a flexible supporting column, so that when an external force acts on the rigid bearing block, the rigid bearing block can slightly displace under the action of the external force to enable the external force to be turned and dispersed, and the flexible supporting column can elastically deform under the action of the external force to absorb the external force, so that the impact resistance of the invention is greatly improved.
4. Furthermore, gaps among the upper layer, the lower layer and the supporting structure can be filled with functional filling agents such as preservatives, adsorbents, humectants, moisture-proof agents, heat-preservation crystals, flame-retardant particles and the like. The sandwich layer has a special structure, namely a gap exists between the upper layer, the lower layer and the supporting structure, the functional filler can be filled in the gap by utilizing the gap without adding a layer of functional filler, and the sandwich layer not only ensures excellent impact resistance in all directions but also can meet the requirements of all industries on the functionality of the packing box on the premise of not increasing the thickness of the plate.
Drawings
FIG. 1 is a schematic view of a package;
FIG. 2 is a schematic view of a partially cut sheet material used in the present invention;
FIG. 3 is an enlarged view at A of FIG. 2;
FIG. 4 is a front view of a sandwich layer of the present invention;
FIG. 5 is a schematic structural view of a support column and a rigid bearing block at the outer end of the support column;
FIG. 6 is a schematic view of a rigid support column under force; wherein FIG. 6(a) is a schematic representation before a force is applied; fig. 6(b) is a schematic diagram after being stressed.
FIG. 7 is a schematic view of a flexible support column under force; wherein FIG. 7(a) is a schematic representation before a force is applied; fig. 7(b) is a schematic view after being subjected to a force.
Fig. 8 is a schematic structural view of a packing box with corner bead strips added.
In the figure: 1. an outer panel; 2. an inner panel; 3. a sandwich layer; 3-1; an upper layer; 3-2; a lower layer; 3-3; a support structure; 3-1-1, a first regular hexagonal ring; 3-2-1, a second regular hexagonal ring; 3-3-1, supporting columns; 3-3-2, branch strips; 3-3-3, rigid bearing block; 4. a surface layer; 5. a barrier film; 6. a high strength fiber layer; 7. and (4) corner protecting strips.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
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 drawings of the embodiments of the present invention, and further detailed description will be given, but the embodiments of the present invention are not limited thereto.
Referring to fig. 1, a packing box includes a bottom panel, side panels, and a top panel. Referring to fig. 2 and 3, the bottom plate, the side plates and the top plate are all made of a multi-layer composite material, and include an outer panel 1, an inner panel 2 and a sandwich layer 3 between the outer panel 1 and the inner panel 2. The outer panel 1 and the inner panel 2 respectively comprise a surface layer 4, a barrier film 5 and a high-strength fiber layer 6 from outside to inside in sequence, wherein the surface layer 4 is kraft paper coated with a waterproof film.
Further, the barrier film 5 is formed by coating a barrier coating material, and the barrier coating material is prepared from the following raw materials in percentage by weight: 60-90% of PVDC emulsion, 0.2-0.8% of initiator, 1-10% of acrylate monomer, 8-40% of polyurethane prepolymer and 0.15-0.5% of neutralizer. The introduction of polyurethane into the structure of PVDC increases the molecular weight of PVDC and improves the flexibility of PVDC, and the introduction of polyurethane can greatly improve the film forming property of PVDC emulsion, so that the PVDC emulsion can form a film on the surface of paper containing fiber holes, and the improvement of the flexibility can effectively prevent the breakage of a crystallization layer, thereby realizing the high barrier property of paper coating.
Further, the solid content of the PVDC emulsion is 30-65%; the initiator is one or more of potassium persulfate, ammonium persulfate and tert-butyl hydroperoxide; the acrylate monomer is one or more of hydroxyethyl acrylate, hydroxyethyl methacrylate and hydroxypropyl acrylate; the polyurethane prepolymer is formed by polymerizing an isocyanate monomer and a hydroxyl compound; the neutralizing agent is triethylamine.
Referring to fig. 4, the sandwich layer 3 of the present invention comprises an upper layer 3-1, a lower layer 3-2 and a support structure 3-3. The upper layer 3-1 is formed by connecting a plurality of first regular hexagonal ring loops 3-1-1 on the same plane, the lower layer 3-2 is also formed by connecting a plurality of second regular hexagonal ring loops 3-2-1 on the same plane, and the first regular hexagonal ring loop 3-1-1 in the upper layer 3-1 and the second regular hexagonal ring loop 3-2-1 in the lower layer 3-2 have the same size; every other three rotation angle points on any first regular hexagonal ring 3-1-1 of the upper layer 3-1 respectively face the center points of three second regular hexagonal rings 3-2-1 of the lower layer 3-1, and the other three rotation angle points on the first regular hexagonal ring 3-1-1 of the upper layer 3-1 respectively face the rotation angle points of three second regular hexagonal rings 3-2-1 of the lower layer 3-2. Every other three rotation angle points on any second regular hexagonal ring 3-2-1 of the same lower layer 3-2 respectively face the center points of the three first regular hexagonal rings 3-1-1 of the upper layer 3-1, and the other three rotation angle points of the second regular hexagonal ring 3-2-1 of the lower layer 3-2 respectively face the rotation angle points of the three first regular hexagonal rings 3-1-1 of the upper layer 3-1; supporting structures 3-3 vertically extending to the central point of a second regular hexagonal ring in the lower layer 3-2 are arranged on three alternate corner points on the first regular hexagonal ring 3-1-1 of the upper layer 3-1, and similarly, supporting structures 3-3 vertically extending to the central point of a first regular hexagonal ring in the upper layer 3-1 are arranged on three alternate corner points on the second regular hexagonal ring 3-2-1 of the lower layer 3-2; the supporting structure 3-3 at least comprises a supporting column 3-3-1 in the vertical direction, one end of the supporting column 3-3-1 is connected to the corner point, and the other end of the supporting column 3-3-1, namely the outer end of the supporting column 3-3-1, vertically extends to the center point of the right hexagonal ring.
Furthermore, the supporting structure 3-3 of the invention also comprises three branch bars 3-3-2 positioned at the periphery of one end of the supporting column 3-3-1, the included angle between the three branch bars 3-3-2 is 120 degrees, and the three branch bars 3-3-2 are respectively and fixedly connected with the outer sides of the three regular hexagonal rings at the corner points connected with the supporting column 3-3-1. The three branch edges 3-3-2 can better fix the support column on the regular hexagonal ring, the support structure is more reliably connected with the regular hexagonal ring, and meanwhile, the three branch edges also effectively enhance the strength of the regular hexagonal ring, so that the support column has better shock resistance.
Furthermore, the outer ends of the support columns 3-3-1 connected to the upper layer 3-1 are abutted against the inner panel 2, and the outer ends of the support columns 3-3-1 connected to the lower layer 3-2 are abutted against the outer panel 1. The support columns 3-3-1 support the upper layer 3-1 and the lower layer 3-2 from each other, so that a buffer space is formed between the upper layer and the lower layer. Meanwhile, the outer ends of the supporting columns 3-3-1 abut against the inner panel 1 and the outer panel 2, and can be stress points when the external force impacts. When the external force is impacted in the front direction, the supporting columns and the regular hexagonal rings on the upper layer and the lower layer can effectively resist the external force acted on the supporting columns, and when the external force is impacted in the side face, the supporting columns can incline to a certain extent under the action of the external force in the inclined direction so as to absorb the external force and dissipate the impact of the external force; after the external force is dissipated, the impacted partial regular hexagonal ring and the support columns on the impacted partial regular hexagonal ring can restore the deformation under the traction of the regular hexagonal ring connected with the periphery.
Further, the support column 3-3-1 of the present invention may be a rigid support column. The rigid support column has good pressure resistance.
Referring to fig. 5, the outer end of the support pillar 3-3-1 is provided with a rigid bearing block 3-3-3 which protrudes upwards and the outer surface of which is arc-shaped, the rigid bearing blocks 3-3-3 on the outer end of the support pillar 3-3-1 connected to the upper layer 3-1 are all butted on the inner panel 2, and the rigid bearing blocks 3-3-3 on the outer end of the support pillar 3-3-1 connected to the lower layer 3-2 are all butted on the outer panel 1.
Referring to fig. 6, support column 3-3-1 in fig. 6 is a rigid support column. The rigid support column has good pressure resistance. The outer end of the supporting column 3-3-1 is provided with a rigid bearing block 3-3-3 which is convex upwards and the outer surface of which is arc-shaped. The outer surface of the rigid bearing block is arc-shaped, when external force is applied to the rigid bearing block, the rigid bearing block can slightly displace under the action of the external force, the displacement enables the external force to deviate on the arc-shaped rigid bearing block (namely the direction of the external force is changed), the external force is dispersed, and therefore the impact force of the external force on a single point is weakened, as shown in fig. 6 (b).
The rigid bearing blocks 3-3-3 which are butted on the inner panel 2 are closely abutted with each other or the gaps between the adjacent rigid bearing blocks 3-3-3 are all smaller than 2 mm; similarly, the rigid bearing blocks 3-3-3 abutted against the outer panel 1 are closely abutted with each other or the gaps between the adjacent rigid bearing blocks 3-3-3 are all less than 2 mm.
Referring to FIG. 7, support column 3-3-1 of FIG. 7 is a flexible support column, such as made of flexible polyurethane foam; the rigid bearing block 3-3-3 is made of high-strength materials, such as high-strength light 3K carbon fiber materials. The supporting column 3-3-1 is designed as a flexible supporting column, so that when an external force is applied to the rigid bearing block, the rigid bearing block can slightly displace under the action of the external force to enable the external force to be turned and dispersed, and the flexible supporting column can elastically deform under the action of the external force to absorb the external force, so that the impact resistance of the invention is greatly improved, as shown in fig. 7 (b).
Furthermore, in order to increase the impact resistance of the packing box at each corner part. Corner protecting strips 7 can be additionally arranged at the corner positions of the packing box. The internal structure of the corner bead is similar to that of the sheet material used for the packing case. The method specifically comprises the following steps: the corner bead comprises an outer panel, an inner panel and a sandwich layer between the outer panel and the inner panel, wherein the sandwich layer comprises an upper layer, a lower layer and a supporting structure, the upper layer is formed by mutually connecting a plurality of regular hexagonal rings on the same plane, the lower layer is also formed by mutually connecting a plurality of regular hexagonal rings on the same plane, and the size of the regular hexagonal rings in the upper layer is completely the same as that of the regular hexagonal rings in the lower layer; the other three alternate turning points of the regular hexagonal ring on the upper layer are respectively opposite to the turning points of the three regular hexagonal rings on the lower layer; the same lower layer of regular hexagonal ring has three alternate turning points which are respectively opposite to the central points of the upper layer of regular hexagonal ring, and the other three alternate turning points of the lower layer of regular hexagonal ring are respectively opposite to the turning points of the upper layer of regular hexagonal ring; the supporting structures vertically extending to the center points of the lower-layer regular hexagonal ring are arranged on the three alternate turning points on the upper-layer regular hexagonal ring, and the supporting structures vertically extending to the center points of the upper-layer regular hexagonal ring are also arranged on the three alternate turning points on the lower-layer regular hexagonal ring; the supporting structure at least comprises a supporting column in the vertical direction, one end of the supporting column is connected to the corner point, and the other end of the supporting column, namely the outer end of the supporting column, vertically extends to the center point of the right regular hexagon ring. Similarly, as a preferred technical solution, the arrangement of the supporting structure and the rigid force-bearing block in the corner bead is the same as that described above, and will not be described herein again.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.

Claims (8)

1. A moisture-preserving packing box comprises a box body, a bottom plate, side plates and a top plate, and is characterized in that the bottom plate, the side plates and the top plate are all formed by compounding multiple layers of materials and comprise an outer panel, an inner panel and a sandwich layer between the outer panel and the inner panel, the sandwich layer comprises an upper layer, a lower layer and a supporting structure, the upper layer is formed by connecting a plurality of regular hexagonal rings on the same plane, the lower layer is also formed by connecting a plurality of regular hexagonal rings on the same plane, and the size of the regular hexagonal rings in the upper layer is completely the same as that of the regular hexagonal rings in the lower layer; the other three alternate turning points of the regular hexagonal ring on the upper layer are respectively opposite to the turning points of the three regular hexagonal rings on the lower layer; the same lower layer of regular hexagonal ring has three alternate turning points which are respectively opposite to the central points of the upper layer of regular hexagonal ring, and the other three alternate turning points of the lower layer of regular hexagonal ring are respectively opposite to the turning points of the upper layer of regular hexagonal ring; the supporting structures vertically extending to the center points of the lower-layer regular hexagonal ring are arranged on the three alternate turning points on the upper-layer regular hexagonal ring, and the supporting structures vertically extending to the center points of the upper-layer regular hexagonal ring are also arranged on the three alternate turning points on the lower-layer regular hexagonal ring; the supporting structure comprises a supporting column in the vertical direction and three branch strips positioned on the periphery of one end of the supporting column, one end of the supporting column is connected to a corner point, the other end of the supporting column, namely the outer end of the supporting column, vertically extends to the central point of a regular hexagonal ring opposite to the supporting column, the three branch strips are respectively fixedly connected to the outer sides of three regular hexagonal rings connected to the corner point connected with the supporting column, the outer end of the supporting column is provided with a rigid bearing block which protrudes upwards and the outer surface of the rigid bearing block is arc-shaped, the rigid bearing blocks connected to the outer end of the supporting column on the upper layer are abutted against the inner panel, and the rigid bearing blocks connected to the outer end of the supporting column on the lower layer are; the support column is a flexible support column, and is specifically made of a soft polyurethane foam material.
2. A moisture preserving package as claimed in claim 1, wherein: the included angle between the three branch strips is 120 degrees.
3. A moisture preserving package as claimed in claim 1 or claim 2 wherein: the outer ends of the support columns connected to the upper layer are abutted to the inner panel, and the outer ends of the support columns connected to the lower layer are abutted to the outer panel.
4. A moisture preserving package as claimed in claim 1, wherein: the rigid bearing blocks abutted against the inner panel are tightly abutted against each other or the gaps between the adjacent rigid bearing blocks are smaller than 2 mm; similarly, the rigid bearing blocks abutted against the outer panel are closely abutted with each other or the gaps between the adjacent rigid bearing blocks are all less than 2 mm.
5. A moisture preserving package as claimed in claim 4, wherein: the rigid bearing block is made of high-strength materials, and particularly made of high-strength light 3K carbon fiber materials.
6. A moisture preserving package as claimed in claim 1, wherein: outer panel and interior panel are all including surface course, barrier film and high strength fiber layer from outer to interior in proper order, the surface course is for pasting the kraft paper that has the waterproof membrane.
7. A moisture preserving package as claimed in claim 6, wherein: the barrier film is formed by coating a barrier coating material, and the barrier coating material is prepared from the following raw materials in percentage by weight: 60-90% of PVDC emulsion, 0.2-0.8% of initiator, 1-10% of acrylate monomer, 8-40% of polyurethane prepolymer and 0.15-0.5% of neutralizer.
8. A moisture preserving package as claimed in claim 7, wherein: the solid content of the PVDC emulsion is 30-65%; the initiator is one or more of potassium persulfate, ammonium persulfate and tert-butyl hydroperoxide; the acrylate monomer is one or more of hydroxyethyl acrylate, hydroxyethyl methacrylate and hydroxypropyl acrylate; the polyurethane prepolymer is formed by polymerizing an isocyanate monomer and a hydroxyl compound; the neutralizing agent is triethylamine.
CN201710271312.XA 2017-04-24 2017-04-24 Moisture-keeping packaging box Active CN107097468B (en)

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Publication number Priority date Publication date Assignee Title
JPH02147325A (en) * 1988-08-01 1990-06-06 Tetra Pak Finance & Trading Sa Packaging material and packaging vessel manufactured from said material
CN2225431Y (en) * 1995-05-27 1996-04-24 赵文豪 Composite corrugated packing box
CN2405893Y (en) * 2000-01-24 2000-11-15 徐俊山 High-strength corrugated cardboard
JP2002337885A (en) * 2001-05-11 2002-11-27 Dainippon Printing Co Ltd Self-standing bag

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Publication number Priority date Publication date Assignee Title
CN2203961Y (en) * 1993-06-03 1995-07-26 张永恒 Packaging sheet with super strength and plasticity
CN103276654A (en) * 2013-05-25 2013-09-04 余德辉 Assembled floor
CN204475059U (en) * 2015-01-19 2015-07-15 宁波新成包装有限公司 Shock resistance corrugated paper
CN204750796U (en) * 2015-05-22 2015-11-11 珠海正业包装有限公司 Packing carton with fresh -keeping heat preservation function

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02147325A (en) * 1988-08-01 1990-06-06 Tetra Pak Finance & Trading Sa Packaging material and packaging vessel manufactured from said material
CN2225431Y (en) * 1995-05-27 1996-04-24 赵文豪 Composite corrugated packing box
CN2405893Y (en) * 2000-01-24 2000-11-15 徐俊山 High-strength corrugated cardboard
JP2002337885A (en) * 2001-05-11 2002-11-27 Dainippon Printing Co Ltd Self-standing bag

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