Stable foam packaging box
By using heat-shrink film and snap-fit structure on foam packaging boxes, the problem of material waste when increasing the strength of foam packaging boxes is solved, achieving the effect of maintaining stability and saving materials while reducing wall thickness.
Patent Information
- Application Number
- CN202520271468.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-20
- Publication Date
- 2025-12-19
- Estimated Expiration
- 2035-02-20
AI Technical Summary
To improve the structural strength of existing foam packaging boxes, the wall thickness needs to be increased, which leads to an increase in material usage and makes it difficult to save materials while ensuring strength.
The box and lid are covered with heat-shrink film, combined with textured adhesive and snap-fit structure to enhance the connection strength, and easy-tear strips make it easy to open.
While maintaining structural strength, the wall thickness of the foam packaging box is reduced, saving materials and improving production efficiency and transportation stability.
Smart Images
Figure CN223687188U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of packing box, concretely relates to a stable foam packing box. BACKGROUND
[0002] Foam packing box is common packing material, can be used to pack vegetables and the like. The structural strength of the packing box is an important use index. The traditional method is to increase the wall thickness of the foam box, which can improve the strength. However, the larger wall thickness means that the amount of material used increases, so that the use strength of the small wall thickness packing box can be guaranteed, which is the direction of research for the foam packing box enterprise.
[0003] Therefore, the present application is produced in view of the above-mentioned defects in the prior art. CONTENT OF THE UTILITY MODEL
[0004] The main purpose of the utility model is to provide a stable foam packing box, which has the characteristics of improving the strength of the foam packing box, and can reduce the wall thickness of the packing box and save foam material under the same structural strength.
[0005] In order to achieve the above purpose, the solution of the utility model is as follows:
[0006] A stable foam packing box, comprising a box cover combination formed by a box body and a cover body on the box body; and a heat shrinkable film wrapped on the outer surface of the box cover combination.
[0007] Further, the heat shrinkable film is adhered to the surface of the box body and the surface of the cover body.
[0008] Further, the surface of the box body and the surface of the cover body are provided with a convex surface pattern; the heat shrinkable film is adhered to the convex pattern.
[0009] Further, the pattern is the imprint formed by the material extruding into the exhaust hole of the mold during the foaming forming process of the box body and the cover body.
[0010] Further, the imprint comprises a plurality of parallel single bodies in the shape of point-discontinuous line, and the disconnected positions of adjacent single bodies are staggered.
[0011] Further, the box body and the cover body are provided with a buckle structure.
[0012] Further, the upper edge of the box body is provided with an upper edge strip, and the upper edge strip is provided with a first buckling body; the lower edge of the cover body is provided with a lower edge strip, and the lower edge strip is provided with a second buckling body; when the cover body is covered with the box body, the upper edge strip is located inside the lower edge strip; the first buckling body and the second buckling body are located on the opposite sides of the upper edge strip and the lower edge strip respectively; the first buckling body has a first guide inclined surface and a first buckling surface; and the second buckling body has a second buckling inclined surface and a second buckling surface.
[0013] Further, the heat shrinkable film is provided with a point-breakable tear strip.
[0014] Further, the heat shrinkable film is provided with a point-breakable tear strip, and the point-breakable tear strip is arranged at the joint of the cover body and the box body and avoids the area bonded with the surface of the box body and the surface of the cover body.
[0015] Further, the heat shrinkable film has an opening located at the side of the box cover combination, and the opening is located in the projection area of the side of the box cover combination; and the edge of the opening is formed with a thickened edge.
[0016] After the above structure is adopted, the stable foam packaging box has at least the following beneficial effects:
[0017] I. The box cover combination is covered by the heat shrinkable film, so that the box body and the cover body form a whole, sufficient structural strength is ensured, transportation is facilitated, and thus compared with the traditional foam packaging box, the wall thickness can be reduced, so that the material is saved.
[0018] II. After the heat shrinkable film is bonded with the cover body and the box body, the connection between the heat shrinkable film and the box cover combination is firm, so that the structural strength of the foam packaging box is further improved. The heat shrinkable film is connected with the patterns distributed on the surfaces of the box body and the cover body at multiple points, so that the connection strength is ensured and the production efficiency is considered.
[0019] III. By arranging the buckle structure, after the cover body is covered with the box body, the cover body will not be lifted by the vegetables in the box body, and the film wrapping is facilitated.
[0020] IV. The point-breakable tear strip facilitates the opening of the box, and a knife can also be used to cut the heat shrinkable film to open the box.
[0021] Compared with the prior art, the heat shrinkable film arranged on the cover body and the box body can improve the strength of the foam packaging box, reduce the wall thickness of the packaging box under the same structural strength, and save the foam material. BRIEF DESCRIPTION OF DRAWINGS
[0022] Figure 1 It is a three-dimensional structure schematic view of the stable foam packaging box.
[0023] Figure 2 It is a disassembled structure schematic view of the utility model.
[0024] Figure 3 It is a disassembled structure schematic view of the utility model from another angle.
[0025] Figure 4 It is a sectional structure schematic view of the utility model.
[0026] Figure 5 It is Figure 4 An enlarged structure schematic view at A in the figure.
[0027] Figure 6 It is a disassembled structure schematic view of the foam packaging box with the buckle structure arranged in a whole circle.
[0028] Figure 7 It is a disassembled structure schematic view of the foam packaging box with the buckle structure distributed in four edges.
[0029] Figure 8 It is Figure 7 An enlarged structure schematic view at B in the figure.
[0030] Figure 9 And Figure 10 It is a structure schematic view of two different imprints.
[0031] Figure 11 It is a structure schematic view of the heat shrinkable film with the point-break easy-tear strip.
[0032] Figure 12 It is a structure schematic view of the heat shrinkable film when the point-break easy-tear strip is torn.
[0033] In the figure:
[0034] Box body 1, cover body 2, texture 30, buckle structure 40, upper edge strip 4, first buckling body 41, first guide inclined surface 411, first buckling surface 412, lower edge strip 5, second buckling body 51, heat shrinkable film 6, point-break easy-tear strip 61, opening 62, thickened edge 621. DETAILED DESCRIPTION
[0035] In order to further explain the technical scheme of the utility model, the utility model will be described in detail through specific embodiments below.
[0036] As Figures 1 to 12 Indicated, it is a stable foam packaging box related to the utility model, including the box cover combination formed by the box body 1 and the cover body 2 arranged on the box body 1, still including the heat shrinkable film 6 coated on the outer surface of the box cover combination.
[0037] Thus, the sturdy foam packaging box of this utility model uses heat shrink film 6 to cover the box lid assembly, so that the box body 1 and the lid 2 form a whole, ensuring sufficient structural strength and facilitating transportation. Compared with traditional foam packaging boxes, this method can reduce the wall thickness, thereby saving materials.
[0038] Preferably, the heat-shrinkable film 6 is bonded to the surface of the housing 1 and the surface of the cover 2. Furthermore, both the surface of the housing 1 and the surface of the cover 2 are provided with raised textures 30; the heat-shrinkable film 6 is bonded to the raised textures 30.
[0039] After the heat-shrinkable film 6 is bonded to the lid 2 and the box body 1, the connection between the heat-shrinkable film 6 and the lid assembly is firm, thus further improving the structural strength of the foam packaging box. The heat-shrinkable film 6 is connected at multiple points to the textures 30 distributed on the surface of the box body 1 and the lid 2, ensuring connection strength while taking into account production efficiency. Preferably, the textures 30 are the imprints formed by the material being extruded into the mold vents during the foaming process of the box body 1 and the lid 2. In this way, the imprints are used to connect with the heat-shrinkable film 6, eliminating the need for additionally designed protruding textures 30.
[0040] Preferably, such as Figure 9 As shown, the imprint comprises several parallel, dotted-line-shaped individual units, with the break points of adjacent units staggered. These multiple dotted-line imprints ensure multi-point connection of the heat-shrinkable film 6, guaranteeing connection strength. The imprint can also be as follows... Figure 10 The diagram shows several individual units contained within a hexagonal region. Each unit contains multiple angled, strip-shaped protrusions.
[0041] Preferably, a snap-fit structure 40 is provided between the box body 1 and the lid 2. By providing the snap-fit structure 40, after the lid 2 and the box body 1 are closed, the lid 2 will not be pushed up by the vegetables inside the box body 1, which facilitates wrapping and covering.
[0042] Specifically, the upper edge of the box body 1 is provided with an upper edge strip 4, and a first fastening body 41 is provided on the upper edge strip 4; the lower edge of the cover body 2 is provided with a lower edge strip 5, and a second fastening body 51 is provided on the lower edge strip 5; when the cover body 2 is closed with the box body 1, the upper edge strip 4 is located inside the lower edge strip 5; the first fastening body 41 and the second fastening body 51 are respectively located on the opposite sides of the upper edge strip 4 and the lower edge strip 5; the first fastening body 41 has a first guide slope 411 and a first fastening surface 412; the second fastening body 51 has a second fastening slope and a second fastening surface.
[0043] like Figure 6 As shown, the first fastening body 41 and the second fastening body 51 can be arranged in a full circle, such as... Figure 7As shown, the first buckling body 41 and the second buckling body 51 can be distributed on only four edges.
[0044] Preferably, the heat shrinkable film 6 is provided with a point-breakable tear strip 61.
[0045] Preferably, the heat shrinkable film 6 is provided with a point-breakable tear strip 61, which is arranged at the joint of the cover 2 and the box 1 and avoids the area adhered to the surface of the cover 2 and the surface of the box 1.
[0046] Preferably, the heat shrinkable film 6 has an opening 62 on the side of the box cover combination, which is located in the projection area of the side of the box 1 combination; the edge of the opening 62 is formed with a thickened edge 621. The thickened edge 621 serves to facilitate the user to lift. When the heat shrinkable film 6 is adhered, the adhered area is away from the thickened edge 621 on the upper side of the opening 62 by a distance.
[0047] Compared with the prior art, the heat shrinkable film 6 arranged on the cover 2 and the box 1 can improve the strength of the foam packaging box, reduce the wall thickness of the packaging box under the same structural strength, and save the foam material.
[0048] The above embodiments and drawings are not limited to the product shape and style of the utility model, and any ordinary skilled person in the art can make appropriate changes or modifications, which should be considered as not departing from the patent category of the utility model.
Claims
1. A stable foam packaging box, characterized by, The box cover assembly comprises a box body and a cover body arranged on the box body; and a heat shrinkable film is arranged on the outer surface of the box cover assembly; The box body and the cover body are provided with a buckle structure; An upper edge strip is arranged on the box body, and a first buckle body is arranged on the upper edge strip; a lower edge strip is arranged on the cover body, and a second buckle body is arranged on the lower edge strip; when the cover body is combined with the box body, the upper edge strip is located inside the lower edge strip; the first buckle body and the second buckle body are respectively arranged on the opposite sides of the upper edge strip and the lower edge strip; the first buckle body has a first guide inclined surface and a first buckling surface; and the second buckle body has a second buckling inclined surface and a second buckling surface.
2. A stabilized foam packaging container as defined in claim 1, wherein The heat shrinkable film is adhered to the surfaces of the box body and the cover body.
3. A stabilized foam packaging container as defined in claim 2, wherein, The surfaces of the box body and the cover body are provided with a convex surface pattern; and the heat shrinkable film is adhered to the convex pattern.
4. A stabilized foam packaging container as defined in claim 3, wherein, The pattern is a mark formed by material extrusion into exhaust holes during foaming molding of the box body and the cover body.
5. A stabilized foam packaging container as defined in claim 4, wherein, The mark comprises a plurality of parallel single bodies in a dot-and-break line shape, and the break positions of adjacent single bodies are staggered.
6. A stabilized foam packaging container as defined in claim 1, wherein, A dot-and-break easy-tear strip is arranged on the heat shrinkable film.
7. A solid foam packaging box according to any one of claims 2-5, characterized in that A dot-and-break easy-tear strip is arranged on the heat shrinkable film, and the dot-and-break easy-tear strip is arranged at the connection between the cover body and the box body and avoids the area adhered to the surfaces of the box body and the cover body.
8. A stabilized foam packaging container as defined in claim 6, wherein, The heat shrinkable film has an opening located at the side of the box cover assembly, and the opening is located in the projection area of the side of the box cover assembly; and a thickened edge is formed at the edge of the opening.