CN109229833B - Packing box cover and packing box of polypropylene material - Google Patents
Packing box cover and packing box of polypropylene material Download PDFInfo
- Publication number
- CN109229833B CN109229833B CN201810898859.7A CN201810898859A CN109229833B CN 109229833 B CN109229833 B CN 109229833B CN 201810898859 A CN201810898859 A CN 201810898859A CN 109229833 B CN109229833 B CN 109229833B
- Authority
- CN
- China
- Prior art keywords
- packing box
- groove
- box cover
- box body
- recess
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 238000012856 packing Methods 0.000 title claims abstract description 113
- 239000004743 Polypropylene Substances 0.000 title claims abstract description 16
- 229920001155 polypropylene Polymers 0.000 title claims abstract description 16
- -1 polypropylene Polymers 0.000 title claims abstract description 15
- 239000000463 material Substances 0.000 title claims abstract description 13
- 238000004806 packaging method and process Methods 0.000 claims description 7
- 238000000034 method Methods 0.000 description 11
- 230000000694 effects Effects 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 238000001746 injection moulding Methods 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 229920000891 common polymer Polymers 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
Classifications
-
- 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
- B65D43/00—Lids or covers for rigid or semi-rigid containers
- B65D43/02—Removable lids or covers
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Stackable Containers (AREA)
Abstract
The embodiment of the application discloses a packing box cover and a packing box made of polypropylene materials, comprising: the first groove, the connecting surface and the bearing structure; the first groove is matched with the upper edge of the packing box body so as to clamp the packing box cover and the packing box body; the bearing structure is positioned in the center of the packing box cover and is used for being matched and positioned with the bottom of the packing box body overlapped on the upper layer of the packing box cover; the outer edge of the bearing structure is connected with the first groove through a connecting surface, and the connecting surface is a plane or at least one arc surface, and the height of each arc surface is less than or equal to 1.5mm. The technical problem that stacking stability is poor due to the fact that protrusions and depressions on an existing packing box cover are deformed under pressure is solved.
Description
Technical Field
The application relates to the technical field of packaging, in particular to a packaging box cover and a packaging box made of polypropylene materials.
Background
Polypropylene (PP) is a semi-crystalline thermoplastic. Has high impact resistance, strong mechanical property and resistance to corrosion of various organic solvents and acid and alkali. The polymer has wide application in industry and is one of common polymer materials.
An important application of polypropylene is currently the packaging of food. The production process of the packing box comprises two processes, wherein one process is injection molding and the other process is plastic sucking molding. Compared with the packing box formed by injection molding, the packing box formed by plastic suction is thinner, less in material consumption and low in cost, but has poor bearing capacity and is easy to deform.
In practical application, in order to realize the stack of packing box and place, be provided with the recess on the packing box lid for the packing box that is located the upper strata can be placed the recess internal fixation. In order to increase the elasticity of the packing box cover, a plurality of bulges and recesses with larger sizes are further arranged between the grooves and the edges of the packing box cover.
However, when the blister molded polypropylene cartridges are stacked, there is often a case where the weight distribution of the upper cartridges is uneven, and the protrusions and depressions on the lower cartridge cover corresponding to the larger portion of the weight are spread out by being pressed, that is, the protrusions and depressions are deformed, thereby causing the upper cartridges to incline, so that the stacking stability of such cartridges is poor.
Disclosure of Invention
The embodiment of the application provides a packing box cover made of polypropylene material, which solves the technical problem that the stacking stability is poor because projections and depressions on the existing packing box cover are deformed by pressure.
In view of this, a first aspect of the present application provides a cover for a polypropylene material comprising a first recess, a connecting surface and a carrying structure;
the first groove is matched with the upper edge of the packing box body so as to clamp the packing box cover and the packing box body;
the bearing structure is positioned in the center of the packing box cover and is used for being matched and positioned with the bottom of the packing box body overlapped on the upper layer of the packing box cover;
The outer edge of the bearing structure is connected with the first groove through the connecting surface, the connecting surface is a plane or at least one arc surface, and the height of each arc surface is less than or equal to 1.5mm.
Preferably, the method comprises the steps of,
The bearing structure comprises a second groove and a bearing surface;
The second groove is arranged at the edge of the bearing surface;
The second groove and the side wall of the first groove are connected through the connecting surface.
Preferably, the method comprises the steps of,
The number of the arc-shaped surfaces is multiple, and the arc-shaped surfaces are connected to form waves.
Preferably, the method comprises the steps of,
The first groove and the second groove are annular and concentrically arranged.
Preferably, the method comprises the steps of,
The openings of the first groove and the second groove are in the same direction.
Preferably, the method comprises the steps of,
The bottom surface of the first groove and the bottom surface of the second groove are positioned on the same plane.
Preferably, the method comprises the steps of,
The bearing surface is a plane or a table surface with a raised center.
Preferably, the method comprises the steps of,
The first groove and the second groove are open in opposite directions.
Preferably, the method comprises the steps of,
The bearing surface is a plane.
A second aspect of the application provides a packaging box of polypropylene material comprising a box body and a box cover according to the first aspect of the application.
From the above technical solutions, the embodiment of the present application has the following advantages:
The embodiment of the application provides a packing box cover made of polypropylene material, which comprises a first groove, a connecting surface and a bearing structure; the first groove is matched with the upper edge of the packing box body so as to clamp the packing box cover and the packing box body; the bearing structure is positioned in the center of the packing box cover and is used for being matched and positioned with the bottom of the packing box body overlapped on the upper layer of the packing box cover; the outer edge of the bearing structure is connected with the first groove through a connecting surface, the connecting surface is a plane or at least one arc surface, and the height of each arc surface is less than or equal to 1.5mm; the connecting surface is a plane or at least one arc surface, the height of each arc surface is less than or equal to 1.5mm, when the packing box cover bears pressure, no unnecessary part is supplied for stretching deformation because no recess or protrusion exists, only radial tension can be formed on the surface of the connecting surface, the clamping degree of the first groove and the packing box body is increased, and the bearing capacity is increased when the packing box cover is stacked; in addition, the connecting surface of the existing packing box cover is provided with the bulge and the dent, so that the packing box is easy to deform, when the packing box is vibrated, the stacked packing boxes can fluctuate and shake up and down due to the existence of the bulge and the dent, and the stability of the packing box placed on the top layer is poorer due to the superposition effect.
Drawings
FIG. 1 is a top view of a packing box cap according to a first embodiment of the present application;
FIG. 2 is a schematic front cross-sectional view of a first example of a packing box cap of the present application;
FIG. 3 is a schematic front cross-sectional view of a second embodiment of a packing box cap of the present application;
fig. 4 is a schematic front cross-sectional view of a packing box cover in accordance with a third embodiment of the present application.
Detailed Description
In order to make the present application better understood by those skilled in the art, the following description will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the accompanying drawings, and it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
Referring to fig. 1, a top view of a packing box cover according to a first embodiment of the present application is shown.
Referring to fig. 2, a schematic front cross-sectional view of a packing box cover according to a first embodiment of the present application is shown.
Referring to fig. 3, a schematic front cross-sectional view of a packing box cover according to a second embodiment of the present application is shown.
Referring to fig. 4, a schematic front cross-sectional view of a packing box cover according to a third embodiment of the present application is shown.
The application provides an embodiment of a packing box cover made of polypropylene material, which comprises the following components: a first recess 1, a connection face 3 and a carrier structure.
The first groove 1 is matched with the upper edge of the packing box body so as to clamp the packing box cover and the packing box body.
The bearing structure is positioned in the center of the packing box cover and is used for being matched and positioned with the bottom of the packing box body overlapped on the upper layer of the packing box cover.
The outer edge of the bearing structure is connected with the first groove 1 through the connecting surface 3, the connecting surface 3 is a plane or at least one arc surface, and the height of each arc surface is less than or equal to 1.5mm.
It will be appreciated that the arcuate surface may be an asymmetric arc, as shown in figures 3 and 4, with the arcuate surface closer to the load bearing structure portion having a greater degree of inclination and the arcuate surface farther from the load bearing structure portion having a lesser degree of inclination in figure 3; in fig. 4, the side of the arcuate surface closer to the load bearing structure portion is less inclined, and the side of the arcuate surface farther from the load bearing structure portion is more inclined; in addition, the arc-shaped surface can be a symmetrical arc.
In the embodiment of the present application, the height refers to a vertical distance between the highest point and the lowest point of the connecting surface 3 in a direction perpendicular to the plane of the packing box cover.
As shown in fig. 3, it can be seen that the cross section of the connection face 3 is arc-shaped, and in order to prevent the large protrusions and depressions on the connection face 3 from affecting the load bearing capacity and stacking stability, the height of each arc-shaped face in this embodiment is 1.5mm or less, for example, may be set to 1mm or 0.5mm.
In the embodiment of the application, the connecting surface 3 is a plane or at least one arc surface, the height of each arc surface is less than or equal to 1.5mm, when the packing box cover bears pressure, no unnecessary part is supplied for stretching deformation because no recess or protrusion exists, only radial tension can be formed on the surface of the connecting surface 3, the clamping degree of the first groove 1 and the packing box body is increased, and the bearing capacity during stacking is increased; in addition, the connecting surface 3 of the existing packing box cover is provided with a bulge and a recess, so that the packing box is easy to deform, when vibration is encountered, the stacked packing boxes can fluctuate and shake up and down due to the existence of the bulge and the recess, and due to the superposition effect, the stability of the packing box placed on the top layer is poorer, and in the embodiment of the application, the connecting surface 3 is not easy to deform due to the fact that the plane is the connecting surface, so that the stacking stability of the packing box is better.
Further, the bearing structure comprises a second groove 2 and a bearing surface;
the second groove 2 is arranged at the edge of the bearing surface 4, and the second groove 2 and the side wall of the first groove 1 are connected through the connecting surface 3.
In this embodiment, as shown in fig. 2 to 4, each of the first groove 1 and the second groove 2 includes a bottom surface, an inner side surface, and an outer side surface.
Further, the number of the arc-shaped surfaces can be multiple, and the connection forms a wave shape.
It should be noted that, wavy arcwall face compares with the plane, can play the effect of strengthening rib, consolidates radial toughness and deformability to make the packing box possess better bearing capacity and pile up stability.
Further, the first groove 1 and the second groove 2 may be both annular and concentrically arranged.
It should be noted that, in the embodiment of the present application, the ring includes, but is not limited to, a circular ring, an elliptical ring, and a rectangular ring; for example, as shown in fig. 1, the ring shape is a circular ring shape, and the packing box cover is correspondingly circular; if the ring is rectangular, the packing box cover is rectangular correspondingly.
Further, the bottom surface of the first groove 1 and the bottom surface of the second groove 2 are located on the same plane, and the bottom surface of the first groove 1 and the bottom surface of the second groove 2 may not be located on the same plane.
Further, the openings of the first groove 1 and the second groove 2 may be in the same direction, as shown in the cross-sectional views of fig. 2 and 3, the openings of the first groove 1 and the second groove 2 are downward, and the bearing surface 4 may be a plane or a central raised table surface.
It will be appreciated that there are a variety of ways to secure the packing box; for example, the bearing surface 4 may be a plane, and the packing box body located on the upper layer may be placed on the bearing surface 4, and the outer side of the bottom surface of the packing box body is extruded with the inner side 21 of the second groove 2, so as to fix the packing box body and the packing box cover; for another example, the carrying surface 4 may also be a central raised table surface, refer to the carrying surface 4 in fig. 3, at this time, for a packing box body with a larger size, the outer side of the bottom surface of the packing box body may still be extruded with the inner side 21 of the second groove 2, so as to fix the packing box body with the packing box cover, and for a packing box body with a smaller size, the third groove of the bottom surface of the packing box body may be directly sleeved on the central raised surface of the carrying surface 4, and the inner side of the bottom surface of the packing box body is extruded with the side surface of the central raised surface, so as to fix the packing box body with the packing box cover.
It should be noted that, when the carrying surface 4 is a central raised table surface, the height of the table surface is not too high, so that the upper surface of the table surface is prevented from being a stress surface, because if the upper surface of the table surface is a stress surface, the stress may deform the central raised surface, resulting in deterioration of the load bearing capacity and stacking stability.
Further, the openings of the first groove 1 and the second groove 2 may be reversed, as shown in the cross-sectional view of fig. 4, the opening of the first groove 1 is downward, the opening of the second groove 2 is upward, and the bearing surface 4 may be a plane.
It can be understood that when the opening of the second groove 2 is upward, the upper packing box body can be directly placed in the second groove 2 to realize positioning; and, the packing box body is placed on the packing box cover in fig. 4, and the center of gravity of the packing box body is lower than that of the packing box body placed on the packing box in fig. 3, so that the stacking stability can be increased.
In the embodiment of the application, the connecting surface 3 is a plane or at least one arc surface, the height of each arc surface is less than or equal to 1.5mm, when the packing box cover bears pressure, no unnecessary part is supplied for stretching deformation because no recess or protrusion exists, only radial tension can be formed on the surface of the connecting surface 3, the clamping degree of the first groove 1 and the packing box body is increased, and the bearing capacity during stacking is increased; in addition, the connecting surface 3 of the existing packing box cover is provided with a bulge and a recess, so that the packing box is easy to deform, when vibration is encountered, the stacked packing boxes can fluctuate and shake up and down due to the existence of the bulge and the recess, and due to the superposition effect, the stability of the packing box placed on the top layer is poorer, and in the embodiment of the application, the connecting surface 3 is not easy to deform due to the fact that the plane is the connecting surface, so that the stacking stability of the packing box is better.
The second aspect of the present application also provides an embodiment of a packing box of polypropylene material, comprising a packing box body and a packing box cover as mentioned in the previous embodiment.
The above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present application.
Claims (8)
1. A cover for a polypropylene material packing box, comprising: comprises a first groove, a connecting surface and a bearing structure;
the first groove is matched with the upper edge of the packing box body so as to clamp the packing box cover and the packing box body;
the bearing structure is positioned in the center of the packing box cover and is used for being matched and positioned with the bottom of the packing box body overlapped on the upper layer of the packing box cover;
the outer edge of the bearing structure is connected with the first groove through the connecting surface, the connecting surface is a plurality of arc surfaces, and the height of each arc surface is less than or equal to 1.5mm;
the arc-shaped surfaces are connected to form waves;
The bearing structure comprises a second groove and a bearing surface;
The second groove is arranged at the edge of the bearing surface;
The second groove and the side wall of the first groove are connected through the connecting surface.
2. The packing box cap of claim 1, wherein the first groove and the second groove are both annular and concentrically disposed.
3. The packing box cap of claim 1, wherein the first recess and the second recess open in the same direction.
4. A packing box cap according to claim 3, wherein the bottom surface of the first recess is in the same plane as the bottom surface of the second recess.
5. A packing box cap according to claim 3, wherein the bearing surface is a planar or central raised table.
6. The packing box cap of claim 1, wherein the first recess and the second recess are open in opposite directions.
7. A packing box cap according to claim 3, wherein the bearing surface is planar.
8. A packaging box of polypropylene material comprising a box body and a packaging box cover according to any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810898859.7A CN109229833B (en) | 2018-08-08 | 2018-08-08 | Packing box cover and packing box of polypropylene material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810898859.7A CN109229833B (en) | 2018-08-08 | 2018-08-08 | Packing box cover and packing box of polypropylene material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109229833A CN109229833A (en) | 2019-01-18 |
| CN109229833B true CN109229833B (en) | 2024-04-30 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810898859.7A Active CN109229833B (en) | 2018-08-08 | 2018-08-08 | Packing box cover and packing box of polypropylene material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109229833B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2978142A (en) * | 1959-03-24 | 1961-04-04 | Novick Jack | Self stacking cans |
| JP2005001736A (en) * | 2003-06-13 | 2005-01-06 | S T Chem Co Ltd | Stacking structure of container |
| CN105795816A (en) * | 2016-05-23 | 2016-07-27 | 伍京栋 | Dish with cover |
| KR20170140986A (en) * | 2016-06-14 | 2017-12-22 | 주식회사 삼보케미칼 | Container structure |
| CN206842057U (en) * | 2017-03-07 | 2018-01-05 | 歌乐电磁(深圳)有限公司 | Packing box |
| CN209051801U (en) * | 2018-08-08 | 2019-07-02 | 广州航群电子商务有限公司 | A kind of the packing box cover and to-go box of polypropylene material |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9242769B2 (en) * | 2012-05-25 | 2016-01-26 | Pactiv LLC | Food storage container closure |
-
2018
- 2018-08-08 CN CN201810898859.7A patent/CN109229833B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2978142A (en) * | 1959-03-24 | 1961-04-04 | Novick Jack | Self stacking cans |
| JP2005001736A (en) * | 2003-06-13 | 2005-01-06 | S T Chem Co Ltd | Stacking structure of container |
| CN105795816A (en) * | 2016-05-23 | 2016-07-27 | 伍京栋 | Dish with cover |
| KR20170140986A (en) * | 2016-06-14 | 2017-12-22 | 주식회사 삼보케미칼 | Container structure |
| CN206842057U (en) * | 2017-03-07 | 2018-01-05 | 歌乐电磁(深圳)有限公司 | Packing box |
| CN209051801U (en) * | 2018-08-08 | 2019-07-02 | 广州航群电子商务有限公司 | A kind of the packing box cover and to-go box of polypropylene material |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109229833A (en) | 2019-01-18 |
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