Composite paper holder
By setting the inner and outer folding edges on the edges of the first paper tray and the second paper tray of the composite paper tray and bonding it, the problem of the composite paper tray is easily broken during the drop test, which significantly improves its reliability and life.
Patent Information
- Application Number
- CN202422014040.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-19
- Publication Date
- 2025-06-06
- Estimated Expiration
- 2034-08-19
AI Technical Summary
In the drop test, existing composite paper holders are prone to rupture and delamination due to the small edge stress area, which limits its reliability and life.
The connection strength is enhanced by providing the inner and outer folding flanges on the edges of the first and second folds of the composite paper tray and bonding the flanges together using glue.
When the composite paper tray is subjected to external forces, the design uses flange to enhance the connection strength, reducing the possibility of rupture and delamination, thereby improving the reliability and life of the composite paper tray.
Smart Images
Figure CN222947283U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of packaging, in particular to a composite paper tray. Background Art
[0002] A paper tray is a three-dimensional paper material tray formed by molding. Common structures include rib-shaped, barrel-shaped, and tower-shaped.
[0003] Please also read Figure 1 As shown, the structure of the composite paper tray in the prior art includes an outer paper tray and an inner paper tray. The inner paper tray is inserted into the outer paper tray. The composite paper tray structure is obtained by gluing the edges of the outer paper tray and the inner paper tray together.
[0004] The inventor discovered during actual research and development that this composite paper tray, since both the outer paper tray 100 and the inner paper tray 200 are trimmed at the edges by a flat cutting process; and the edges 300 of the outer paper tray 100 and the inner paper tray 200 trimmed by the flat cutting process can only be overlapped in the up and down directions and then glued together; since the force-bearing area at the edge 300 is small, in a drop test, when a four-side drop test is performed, when the outer paper tray and the inner paper tray have opposite forces, the edge is easily impacted and cracked and delaminated, which seriously limits the reliability and service life of the composite paper tray.
[0005] Therefore, it is necessary to study a new technical solution to solve the above problems. Utility Model Content
[0006] In view of this, the present invention aims at the deficiencies in the prior art, and its main purpose is to provide a composite paper tray to effectively solve the technical defects of the prior art, that is, the composite paper tray has poor reliability and service life.
[0007] To achieve the above-mentioned purpose, the utility model adopts the following technical solution: a composite paper tray, comprising at least a first paper tray and a second paper tray, the top of the first paper tray having a first edge, the first edge being provided with a first flange; the top of the second paper tray having a second edge, the second edge being provided with a second flange; when the second paper tray is loaded into the first paper tray, the second flange is overlapped with the first flange inside and outside.
[0008] The beneficial effect of the composite paper tray provided by the present application is that, compared with the prior art, a first flange and a second flange that are stacked together inside and outside are provided, and the opposite sides of the first flange and the second flange are bonded together using glue; with such a structure, when an external force acts on the composite paper tray, causing the first paper tray and the second paper tray to exert forces in opposite directions, the first flange and the second flange can be used to enhance the strength of the connection, and the connection between the first paper tray and the second paper tray is not easy to break and delaminate due to impact force, which is beneficial to improving the reliability and service life of the composite paper tray.
[0009] As a preferred solution: the first edge extends outward from the top outer side of the first paper support, the first flange is arranged at the outer end of the first edge and is arranged at an inner and outer spacing with the first paper support; the second edge extends outward from the top of the second paper support, the second flange is arranged at the outer end of the second edge and is arranged at an inner and outer spacing with the second paper support.
[0010] As a preferred solution: the first edge is horizontally arranged, and the second edge is horizontally arranged; when the second paper holder is loaded into the first paper holder, the bottom of the second edge abuts against the top of the first edge.
[0011] As a preferred solution: the first flange extends downward from the outer end of the first edge, the first paper support and the first flange are set with inner and outer spacing, and the first paper support, the first edge and the first flange surround the first convex portion; the second flange extends downward from the outer end of the second edge, the second paper support and the second flange are set with inner and outer spacing, and the second paper support, the second edge and the second flange surround the first notch; when the second paper support is loaded into the first paper support, the first convex portion is inserted into the first notch.
[0012] As a preferred solution: the bottom of the first convex portion has a first hollow portion, the first edge is provided with a plurality of first supporting recesses, and the plurality of first supporting recesses are recessed to surround a first supporting convex portion facing the side where the first hollow portion is located.
[0013] As a preferred solution: the first flange is perpendicular to the first edge, and the second flange is perpendicular to the second edge; when the second paper holder is loaded into the first paper holder, the first flange and the second flange are arranged parallel to each other and abut against each other.
[0014] As a preferred solution: the first paper tray is provided with a first buffer cavity running through the top thereof, and the first buffer cavity is for loading the second paper tray; the second paper tray is provided with a first installation cavity running through the top thereof, and the first installation cavity is for loading the product.
[0015] As a preferred solution: the side surfaces of the first buffer cavity are all arranged to be inclined from bottom to top and outward, and the side surfaces of the first installation cavity are all arranged to be inclined from bottom to top and outward.
[0016] As a preferred solution: a plurality of second supporting recesses are provided on the outer side surface of the first paper holder, and the plurality of second supporting recesses are recessed inwardly to form a second supporting protrusion on the inner side of the first buffer cavity.
[0017] As a preferred solution: the first paper support is a dry-pressed paper support, and the second paper support is a wet-pressed paper support. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.
[0019] Figure 1 It is a structural schematic diagram of a composite paper tray provided by the prior art;
[0020] Figure 2 is a schematic diagram of the three-dimensional structure of the composite paper tray provided in an embodiment of the present application;
[0021] Figure 3 yes Figure 2 The three-dimensional structure exploded view of the composite paper tray shown;
[0022] Figure 4 yes Figure 3 A front view of the assembly process of the composite paper tray shown;
[0023] Figure 5 yes Figure 2 A first cross-sectional view of the composite paper tray shown;
[0024] Figure 6 yes Figure 5 A partial enlarged view of the composite paper tray shown at point A;
[0025] Figure 7 yes Figure 5 A partial enlarged view of point B of the composite paper tray shown.
[0026] Among them, the reference numerals in the figure are:
[0027] 10. Composite paper tray;
[0028] 11, first paper support; 1101, first convex part; 1102, first hollow part; 1103, first buffer cavity; 111, first edge; 112, first flange; 113, first supporting concave part; 114, first supporting convex part; 115, second supporting concave part; 116, second supporting convex part;
[0029] 12, second paper support; 1201, first notch; 1202, first installation cavity; 121, first edge; 122, second flange;
[0030] 100, outer paper support; 200, inner paper support; 300, edge. DETAILED DESCRIPTION
[0031] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.
[0032] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.
[0033] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.
[0034] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.
[0035] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments.
[0036] Please also read Figures 2 to 7 The composite paper tray 10 provided in the embodiment of the present application is now described. The composite paper tray 10 comprises: a first paper tray 11 and a second paper tray 12.
[0037] The first paper holder 11 has a first edge 111 at the top, and a first flange 112 is provided on the first edge 111. The second paper holder 12 has a second edge 121 at the top, and a second flange 122 is provided on the second edge 121. When the second paper holder 12 is inserted into the first paper holder 11, the second flange 122 overlaps the first flange 112 inside and outside.
[0038] Specifically, by providing a first flange 112 and a second flange 122 that are stacked together inside and outside, glue is used to bond the opposite sides of the first flange 112 and the second flange 122 together; with such a structure, when an external force is applied to the composite paper support 10, causing the first paper support 11 and the second paper support 12 to exert forces in opposite directions, the first flange 112 and the second flange 122 can be used to enhance the strength of the connection, and the connection between the first paper support 11 and the second paper support 12 is not prone to rupture and delamination due to impact force, which is beneficial to improving the reliability and service life of the composite paper support 10.
[0039] The first paper tray 11 and the second paper tray 12 are both pulp paper trays, and the pulp is pressed into the desired shapes of the first paper tray 11 and the second paper tray 12 by a mold. In some embodiments of the present application, the first paper tray 11 is a dry-pressed paper tray, and the second paper tray 12 is a wet-pressed paper tray. The second paper tray 12 is loaded into the first paper tray 11, and the product is loaded into the second paper tray 12 for storage.
[0040] It should be noted that the first paper tray 11 can be made of corrugated paper pulp, newspaper pulp, waste paper pulp, etc., or can be made of sugarcane pulp and A4 paper pulp; the second paper tray 12 is made of sugarcane pulp / dregs and A4 paper pulp as the main raw materials. The dry-pressed paper tray has strong load-bearing capacity, while the wet-pressed paper tray has high hardness; therefore, the composite structure of the dry-pressed paper tray and the wet-pressed paper tray can reduce the manufacturing cost while improving the load-bearing performance and hardness.
[0041] In some embodiments of the present application, the first edge 111 is extended outward from the top outer side of the first paper support 11, and the first flange 112 is arranged at the outer end of the first edge 111 and is arranged at an inner and outer spacing with the first paper support 11; the second edge 121 is extended outward from the top of the second paper support 12, and the second flange 122 is arranged at the outer end of the second edge 121 and is arranged at an inner and outer spacing with the second paper support 12. The first edge 111 is arranged horizontally, and the second edge 121 is arranged horizontally; when the second paper support 12 is loaded into the first paper support 11, the bottom of the second edge 121 abuts against the top of the first edge 111. The first flange 112 is perpendicular to the first edge 111, and the second flange 122 is perpendicular to the second edge 121; when the second paper support 12 is loaded into the first paper support 11, the first flange 112 and the second flange 122 are arranged parallel to each other and abut against each other.
[0042] Next, the first flange 112 extends downward from the outer end of the first edge 111, and the first paper support 11 and the first flange 112 are set at an inner and outer spacing, and the first paper support 11, the first edge 111 and the first flange 112 surround the first convex portion 1101; the second flange 122 extends downward from the outer end of the second edge 121, and the second paper support 12 and the second flange 122 are set at an inner and outer spacing, and the second paper support 12, the second edge 121 and the second flange 122 surround the first notch 1201; when the second paper support 12 is installed in the first paper support 11, the first convex portion 1101 is inserted into the first notch 1201.
[0043] Specifically, by setting a first flange 112 extending downward on the first edge 111 and a second flange 122 extending downward on the second edge 121, when assembling the first paper tray 11 and the second paper tray 12, firstly, glue is applied on the sides opposite to the first flange 112 and the second flange 122, and then the second paper tray 12 is installed into the first paper tray 11, so that the first flange 112 and the second flange 122 are arranged inside and outside and abut against each other, and are fixed by glue to obtain a composite paper tray 10.
[0044] In more detail, the provision of the first flange 112 and the second flange 122 can enhance the bonding area between the first paper support 11 and the second paper support 12, which is beneficial to improving the connection strength between the first paper support 11 and the second paper support 12; at the same time, the first flange 112 and the second flange 122 are vertically arranged and stacked together inside and outside. When the composite paper support 10 is subjected to lateral impact force, the first flange 112 and the second flange 122 can be utilized to have a certain buffering effect, and the force will not directly act on the bonding point of the first flange 112 and the second flange 122, which is beneficial to further reduce the probability of opening of the first paper support 11 and the second paper support 12.
[0045] It is understandable that the first flange 112 can also be folded up relative to the first edge 111, and the second flange 122 can be folded up relative to the second edge 121, and the first flange 112 and the second flange 122 can be arranged obliquely and are not limited to being arranged vertically.
[0046] In other embodiments of the present application, the bottom of the first convex portion 1101 has a first hollow portion 1102, and the first edge 111 is provided with a plurality of first supporting recesses 113, and the plurality of first supporting recesses 113 are concave to surround a first supporting convex portion 114 facing the side where the first hollow portion 1102 is located. Such a structure can improve the supporting force when the side falls and is subjected to force, and can improve the stability of the first flange 112, and is not prone to excessive displacement.
[0047] It is understandable that when the second paper tray 12 is loaded into the first paper tray 11 , the first flange 112 and the second flange 122 are stacked inside and outside, which can also provide a certain support strength for the second flange 122 .
[0048] Specifically, the first paper holder 11 is provided with a first buffer cavity 1103 running through the top thereof, and the first buffer cavity 1103 is for loading the second paper holder 12; the second paper holder 12 is provided with a first installation cavity 1202 running through the top thereof, and the first installation cavity 1202 is for loading the product. The side surfaces of the first buffer cavity 1103 are all inclined from bottom to top and outward, and the side surfaces of the first installation cavity 1202 are all inclined from bottom to top and outward.
[0049] In more detail, the outer side of the first paper holder 11 is provided with a plurality of second supporting recesses 115, which are recessed inwardly to form a second supporting protrusion 116 inside the first buffer cavity 1103. Such a structure is conducive to improving the supporting stability of the side of the first paper holder 11 and is not prone to deformation.
[0050] The above are only preferred embodiments of the present invention, and only specifically describe the technical principles of the present invention. These descriptions are only for the purpose of explaining the principles of the present invention, and cannot be interpreted as limiting the scope of protection of the present invention in any way. Based on the explanation here, any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention, and other specific implementation methods of the present invention that can be associated with by technicians in this field without creative labor, should be included in the scope of protection of the present invention.
Claims
1. A composite paper support, comprising at least a first paper support (11) and a second paper support (12), characterized in that: The top of the first paper holder (11) has a first edge (111), and the first edge (111) is provided with a first flange (112); the top of the second paper holder (12) has a second edge (121), and the second edge (121) is provided with a second flange (122); when the second paper holder (12) is inserted into the first paper holder (11), the second flange (122) and the first flange (112) are overlapped inside and outside.
2. The composite paper tray according to claim 1, characterized in that: The first edge (111) is extended outward from the top outer side of the first paper holder (11), and the first flange (112) is arranged at the outer end of the first edge (111) and is arranged at an inner and outer spacing from the first paper holder (11); The second edge (121) is extended outward from the top of the second paper holder (12), and the second flange (122) is arranged at the outer end of the second edge (121) and is spaced apart from the inside and outside of the second paper holder (12).
3. The composite paper tray according to claim 1 or 2, characterized in that: The first edge (111) is arranged horizontally, and the second edge (121) is arranged horizontally; when the second paper holder (12) is loaded into the first paper holder (11), the bottom of the second edge (121) abuts against the top of the first edge (111).
4. The composite paper tray according to claim 3, characterized in that: The first flange (112) extends downward from the outer end of the first edge (111), the first paper holder (11) and the first flange (112) are arranged with an inner and outer spacing, and the first paper holder (11), the first edge (111) and the first flange (112) surround the first convex portion (1101); The second flange (122) extends downward from the outer end of the second edge (121), the second paper holder (12) and the second flange (122) are arranged with an inner and outer spacing, and the second paper holder (12), the second edge (121) and the second flange (122) surround the first notch (1201); When the second paper holder (12) is loaded into the first paper holder (11), the first protrusion (1101) is inserted into the first notch (1201).
5. The composite paper tray according to claim 4, characterized in that: The bottom of the first convex portion (1101) has a first hollow portion (1102), and the first edge (111) is provided with a plurality of first supporting recesses (113), and the plurality of first supporting recesses (113) are recessed to enclose a first supporting convex portion (114) facing the side where the first hollow portion (1102) is located.
6. The composite paper tray according to any one of claims 1, 4 or 5, characterized in that: The first flange (112) is perpendicular to the first edge (111), and the second flange (122) is perpendicular to the second edge (121); when the second paper holder (12) is loaded into the first paper holder (11), the first flange (112) and the second flange (122) are arranged parallel to each other and abut against each other.
7. The composite paper tray according to claim 6, characterized in that: The first paper tray (11) is provided with a first buffer cavity (1103) running through the top thereof, and the first buffer cavity (1103) is for loading the second paper tray (12); the second paper tray (12) is provided with a first installation cavity (1202) running through the top thereof, and the first installation cavity (1202) is for loading products.
8. The composite paper tray according to claim 7, characterized in that: The side surfaces of the first buffer cavity (1103) are all arranged to be inclined from bottom to top and outward, and the side surfaces of the first installation cavity (1202) are all arranged to be inclined from bottom to top and outward.
9. The composite paper tray according to claim 7 or 8, characterized in that: The outer side surface of the first paper holder (11) is provided with a plurality of second supporting recesses (115), and the plurality of second supporting recesses (115) are recessed inwardly to form a second supporting protrusion (116) on the inner side of the first buffer cavity (1103).
10. The composite paper tray according to claim 1, characterized in that: The first paper support (11) is a dry-pressed paper support, and the second paper support (12) is a wet-pressed paper support.