Paperboard structure and tray structure formed by folding paperboard structure

Abstract

The utility model relates to the technical field of product packaging, in particular to a paperboard structure and a tray structure formed by folding the paperboard, the paperboard structure comprises a bottom plate, a first side plate and a second side plate, and the first side plate and the second side plate are arranged in different side length directions of the bottom plate; the first side plate comprises a first outer side plate, a first inner side plate and a supporting part which are separated by a serrated knife fold line; a separation groove is formed in the first inner side plate; the separation grooves are formed in the direction perpendicular to the supporting part and arranged in the direction parallel to the supporting part. The paperboard structure further comprises a connecting plate. The connecting plate is provided with a serrated knife fold line parallel to the central axis of the bottom plate; and the connecting plate is folded along the folding line of the serrated knife to form a V-shaped clamping groove. The utility model provides a tray structure formed by folding the paperboard structure. The tray structure has the advantages of being excellent in structural strength, few in folding forming process, simple in assembling operation and capable of effectively increasing the loading number and having a fool-proof function.

Description

Technical Field

[0001] The utility model relates to the technical field of product packaging, and particularly relates to a cardboard structure and a tray structure formed by folding the cardboard. Background Art

[0002] As a unit load platform device for products, a paper tray is mainly used to place products during containerization, stacking, handling, and display. It is a packaging component often used in the product turnover and transportation process, and is a packaging component that can support products, separate products, and buffer the products; and the paper tray is more environmentally friendly, so it is widely used in the paper tray packaging and product display of industries such as food, electronics, electrical appliances, computers, mechanical parts, industrial instruments, handicraft glass, ceramics, toys, and medicine. Currently, most paper trays are assembled and formed by inserting multiple groups of knife cards, and cannot be completely flattened, resulting in a large occupied space, thus increasing the storage cost and transportation cost; secondly, for a paper tray assembled and formed by inserting multiple groups of knife cards, more parts are required, more manpower is needed to complete, the folding and forming is slow, the labor cost is high, and its structural strength is weak, and it is easy to be damaged during use, and it cannot effectively absorb the vibration of the product and the impact of external force on the product during transportation, and thus cannot buffer and protect the product; in addition, the structure of this kind of paper tray assembled and formed by inserting multiple groups of knife cards is generally relatively simple, the fixing effect on paper-plastic products is poor, and even there is no support and fixing effect on paper-plastic products, resulting in the deformation of paper-plastic products due to stress during transportation, and further resulting in the damage of the contents of paper-plastic products. Therefore, it is urgent to develop a paper tray with a simple folding and forming method, which can be completely flattened, has a supporting and fixing effect on paper-plastic products, and at the same time has excellent buffering effect.

[0003] The purpose of the utility model is to provide a cardboard structure and a tray structure formed by folding the cardboard, so as to solve the problems existing in the prior art, such as the existing paper tray has weak structural strength, slow folding and forming speed, high labor cost, and high storage and transportation costs. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a cardboard structure and a tray structure formed by folding the cardboard, so as to solve the problems existing in the prior art, such as the existing paper tray has weak structural strength, slow folding and forming speed, high labor cost, and high storage and transportation costs.

[0005] The technical solution of the utility model is: a cardboard structure, comprising: a bottom plate, a first side plate and a second side plate arranged on different side lengths of the bottom plate;

[0006] Toothed knife folding lines are arranged at the joints between the bottom plate and the first side plate and the second side plate;

[0007] The first side plate includes a first outer side plate, a first inner side plate, and a support portion separated by a tooth cutter fold line;

[0008] A separation groove is provided on the first inner side plate;

[0009] The separation groove is opened in a direction perpendicular to the support portion and arranged in a direction parallel to the support portion;

[0010] The top end of the separation groove is close to the first outer side plate; the bottom end of the separation groove is close to the support portion.

[0011] Preferably, the separation grooves are arranged at equal intervals or non-equal intervals.

[0012] Preferably, side ears are symmetrically provided on the left and right sides of the first inner side plate; a tooth cutter fold line is provided between the side ears and the first inner side plate;

[0013] Clamping plates are symmetrically provided on the left and right sides of the first outer side plate respectively; the clamping openings of the clamping plates face or face away from one side of the adjacent first inner side plate; a tooth cutter fold line is provided between the clamping plates and the first outer side plate.

[0014] Preferably, the second side plate includes a second outer side plate, a second inner side plate, and a support plate separated by a tooth cutter fold line;

[0015] A boss is provided on one side of the second inner side plate away from the support plate; a groove for accommodating the boss is provided on one side of the bottom plate connected to the second side plate.

[0016] Preferably, the bottom plate is rectangular, the first side plates are symmetrically arranged on the two sides with longer side lengths of the bottom plate, and the second side plates are symmetrically arranged on the two sides with shorter side lengths of the bottom plate.

[0017] Preferably, a connecting plate is further included;

[0018] One bottom plate is connected to each of the upper side and the lower side of the connecting plate; a tooth cutter fold line is provided between the connecting plate and the bottom plate;

[0019] A tooth cutter fold line is provided on the central axis of the connecting plate parallel to the bottom plate; the connecting plate is folded along the tooth cutter fold line to form a V-shaped card slot.

[0020] The first side plates are arranged on one side of the bottom plate away from the connecting plate; the second side plates are symmetrically arranged on the remaining two sides of the bottom plate.

[0021] Preferably, separation grooves are respectively provided on one side of the connecting plate connected to the bottom plate;

[0022] The partition grooves are formed in a direction perpendicular to the bottom plate and arranged in a direction parallel to the bottom plate;

[0023] The top end of the partition groove is close to the central axis parallel to the bottom plate on the connecting plate, and the bottom end of the partition groove is close to the bottom plate.

[0024] Preferably, the second outer side plate located on the upper side or the lower side of the connecting plate is provided with a flank on the side adjacent to the connecting plate; a toothed knife fold line is provided between the flank and the second outer side plate.

[0025] The present invention also provides a tray structure, which is formed by folding the above cardboard.

[0026] Preferably, the tray structure is a single cavity structure or a double cavity structure.

[0027] Preferably, the tray structure includes a first cavity and a second cavity formed by folding the above cardboard structure; the first cavity and the second cavity are fixedly connected through a connecting plate and a clamping plate.

[0028] Compared with the prior art, the advantages of the present invention are:

[0029] (1) A cardboard structure provided by the present invention and a tray structure formed by folding the cardboard; the tray structure formed by folding the cardboard structure has excellent structural strength, fewer folding and forming processes, simple and convenient assembly operations, can effectively save human resources, and solves the problems of weak structural strength of the paper tray, slow folding and forming, high labor cost, and high storage and transportation costs in the prior art.

[0030] (2) A cardboard structure provided by the present invention, the cardboard structure includes a bottom plate, a first side plate, a second side plate, a connecting plate, etc., and the joints between two mutually connected plates are separated by toothed knife fold lines, which is beneficial to folding the cardboard structure into a tray structure; and the cardboard structure also includes a clamping plate, and a stable tray structure can be formed through folding and mutual clamping of the clamping plates, which can avoid using the bonding method for assembly, thereby reducing the use or avoiding the use of adhesives that are unfriendly to the environment, making the tray structure more environmentally friendly.

[0031] (3) When the cardboard structure provided by the present utility model is folded to form a tray structure, the first side plate needs to be folded inward so that a V-shaped card slot structure is formed among the first outer side plate, the first inner side plate, and the support portion. This V-shaped card slot structure is beneficial for the partition slots 9 on the upper and lower sides of the cavity to be symmetrically distributed for partitioning and fixing products, that is, the tray structure formed by folding the cardboard structure can realize the fixing of products and the partitioning between products, preventing adverse phenomena such as product scattering, mutual collision between products resulting in bruises and breakages during the packing process. The support portion can also effectively prevent the first inner side plate or the first outer side plate from deforming when subjected to external forces, or the first inner side plate and the first outer side plate from approaching each other when subjected to external forces, thereby deforming the V-shaped card slot and making the partition slot 9 unable to partition and fix products, resulting in the tray structure formed by folding the cardboard structure losing the fixing of products and the partitioning between products.

[0032] (4) A cardboard structure provided by the present utility model and a tray structure formed by folding the cardboard. Compared with the existing paper tray, this tray structure can not only effectively increase the loading quantity, but also clarify the quantity of products loaded in each tray structure, which is beneficial for counting the quantity of loaded items and has a good anti-fooling effect. Description of the Drawings

[0033] The present utility model will be further described below in conjunction with the drawings and embodiments:

[0034] Figure 1 It is a schematic diagram of the cardboard structure in the first embodiment of the present utility model;

[0035] Figure 2 It is a three-dimensional structure schematic diagram of the tray structure in the first embodiment of the present utility model;

[0036] Figure 3 It is a schematic diagram of the cardboard structure in the second embodiment of the present utility model;

[0037] Figure 4 It is a schematic diagram of the folding method of the tray structure in the second embodiment of the present utility model;

[0038] Figure 5 It is a three-dimensional structure schematic diagram of the tray structure in the second embodiment of the present utility model;

[0039] Wherein: 1, bottom plate; 11, first cavity; 12, second cavity; 2, cavity; 3, connecting plate; 4, first side plate; 41, first outer side plate; 42, first inner side plate; 43, support portion; 44, side ear; 5, tooth knife fold line; 6, second side plate; 61, second outer side plate; 62, support plate; 63, second inner side plate; 64, boss; 65, groove; 7, flank; 8, clamping plate; 9, partition slot. Detailed implementation manners

[0040] The following combines specific embodiments to further elaborate on the content of the present utility model:

[0041] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "inner", "outer", "side", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the components referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation to the present utility model.

[0042] Embodiment 1

[0043] A cardboard structure includes a bottom plate 1, a first side plate 4, and a second side plate 6. As Figure 1 shown, the bottom plate 1 is rectangular. The first side plate 4 is disposed on the upper and lower sides of the longer side of the bottom plate 1, and the second side plate 6 is symmetrically disposed on the left and right sides of the shorter side of the bottom plate 1; tooth knife fold lines 5 are provided at the joints between the bottom plate and the first side plate 4 and the second side plate 6.

[0044] The first side plate 4 includes a first outer plate 41, a first inner plate 42, and a support portion 43 separated by a tooth knife fold line 5. Among them, a plurality of partition grooves 9 are provided on the first inner plate 42; the partition grooves 9 are opened in a direction perpendicular to the support portion 43 and arranged in a direction parallel to the support portion 43; the top end of the partition groove 9 is close to the first outer plate 41; the bottom end of the partition groove 9 is close to the support portion 43; the plurality of partition grooves 9 are arranged at equal intervals. In addition, side ears 44 are symmetrically disposed on the left and right sides of the first inner plate 42; a tooth knife fold line 5 is provided between the side ears 44 and the first inner plate 42.

[0045] In addition, clamping plates 8 are symmetrically disposed on the left and right sides of the first outer plate 41 respectively; the buckle of the clamping plate 8 on the upper side of the bottom plate 1 faces the side of the adjacent first inner plate 42, and the buckle of the clamping plate 8 on the lower side of the bottom plate 1 faces the side of the adjacent bottom plate 1; a tooth knife fold line 5 is provided between the clamping plate 8 and the first outer plate 41.

[0046] The second side plate 6 includes a second outer plate 61, a second inner plate 63, and a support plate 62 separated by a tooth knife fold line 5; a boss 64 is provided on the side of the second inner plate 63 far from the support plate 62; a groove 65 for accommodating the boss 64 is provided on the side of the bottom plate 1 connected to the second side plate 6.

[0047] A tray structure includes a cavity 2 formed by folding the above cardboard structure. For the above cardboard, first fold the first side plates 4 on the upper and lower sides of the bottom plate 1 inward along the tooth knife fold line 5, and then snap the snap plates 8 on the upper and lower sides of the bottom plate 1 together to fixedly connect the first side plates 4 on the upper and lower sides of the bottom plate 1; finally, fold the second side plate 6 inward, and insert the boss 64 on the second inner side plate 63 into the groove 65 to form the cavity 2, and assemble it into a tray structure with a single cavity.

[0048] As Figure 2 shown, in this tray structure, a number of partition grooves 9 provided on the first inner side plate 42 are symmetrically distributed on the upper and lower sides of the cavity 2, and the partition grooves 9 are arranged at equal intervals for partitioning and fixing products. When using this tray structure to hold products, the products can be sequentially snapped into the partition grooves 9 along the distribution direction of the partition grooves 9. This can not only fix the products and separate the products from each other by this tray structure, preventing problems such as product scattering, mutual collision between products during the boxing process, resulting in bruises, breakages and other bad phenomena; but also clarify the number of products loaded in each tray structure, which is conducive to counting the number of products.

[0049] In addition, after folding the first side plate 4 inward, the side of the support portion 43 away from the first inner side plate 42 contacts the first outer side plate 41, so that a V-shaped card slot structure is formed between the first outer side plate 41, the first inner side plate 42 and the support portion 43, which is conducive to the partition grooves 9 symmetrically distributed on the upper and lower sides of the cavity 2 to partition and fix products, and further enables this tray structure to have the functions of fixing products and separating products from each other; the support portion 43 can also effectively prevent the first inner side plate 42 or the first outer side plate 41 from deforming when subjected to external forces, or the first inner side plate 42 and the first outer side plate 41 from approaching each other when subjected to external forces, thereby deforming the V-shaped card slot, and thus making this tray structure lose the functions of separating and fixing products. The side ears 44 provided on the left and right sides of the first inner side plate 42 can seal the connection between the folded first side plate 4 and the second side plate 6, and further enable the tray structure to better protect the products.

[0050] In other embodiments, a number of partition grooves 9 can be symmetrically arranged on the left and right sides of the cavity 2, that is, on the second side plates 6 on the two shorter sides of the bottom plate 1. However, compared with arranging the partition grooves 9 on the second side plates 6 on the two shorter sides of the bottom plate 1, arranging the partition grooves 9 on the first side plates 4 on the two longer sides of the bottom plate 1 can enable the tray to hold more products, improve the loading efficiency, and thus reduce the packaging cost. A number of partition grooves 9 symmetrically distributed on the upper and lower sides of the cavity 2 can also be arranged in a non-equidistant manner according to the types, shapes and quantity requirements of the products to be loaded.

[0051] The tray structure is formed by the snap - on plates 8 being snapped together to fixedly connect the first side plates 4 on the upper and lower sides of the bottom plate 1, and then assembled into a stable tray structure. In other embodiments, other connecting components with the same function as the snap - on plates 8 can be used to replace the snap - on plates 8 in this embodiment.

[0052] Embodiment Two

[0053] A cardboard structure includes a bottom plate 1, a first side plate 4, a second side plate 6, and a connecting plate 3. As Figure 3 shown, the bottom plate 1 is arranged on the upper and lower sides of the connecting plate 3, the first side plate 4 is arranged on the side of the bottom plate 1 far from the connecting plate 3, and the second side plates 6 are symmetrically arranged on the remaining two sides of the bottom plate 1; Tooth - cutter fold lines 5 are provided between the connecting plate 3 and the bottom plate 1, between the bottom plate 1 and the second side plates, and between the bottom plate 1 and the first side plates; In addition, a tooth - cutter fold line 5 is also provided on the central axis of the connecting plate 3 parallel to the bottom plate 1, so that the connecting plate 3 can be folded along the tooth - cutter fold line 5 to form a V - shaped card slot.

[0054] On the side of the connecting plate 3 connected to the bottom plate 1, a number of partition slots 9 are respectively provided; The partition slots 9 are opened in a direction perpendicular to the bottom plate 1 and arranged in a direction parallel to the bottom plate 1; The top of the partition slot 9 is close to the central axis of the connecting plate 3 parallel to the bottom plate 1, and the bottom of the partition slot 9 is close to the bottom plate 1.

[0055] The first side plate 4 includes a first outer side plate 41, a first inner side plate 42, and a support portion 43 separated by a tooth - cutter fold line 5.

[0056] Among them, a number of partition slots 9 are also provided on the first inner side plate 42; The partition slots 9 are opened in a direction perpendicular to the support portion 43 and arranged in a direction parallel to the support portion 43; The top of the partition slot 9 is close to the first outer side plate 41; The bottom of the partition slot 9 is close to the support portion 43.

[0057] In addition, snap - on plates 8 are symmetrically arranged on the left and right sides of the first outer side plate 41 respectively; The buckle of the snap - on plate 8 on the upper side of the connecting plate 3 faces the side of its adjacent first inner side plate 42, and the buckle of the snap - on plate 8 on the lower side of the connecting plate 3 faces the side of its adjacent bottom plate 1; A tooth - cutter fold line 5 is provided between the snap - on plate 8 and the first outer side plate 41.

[0058] The second side plate 6 includes a second outer side plate 61, a second inner side plate 63, and a support plate 62 separated by a tooth - cutter fold line 5; On the second outer side plate 61 on the lower side of the connecting plate 3, and on the side adjacent to the connecting plate 3, a flank 7 is provided; A tooth - cutter fold line 5 is provided between the flank 7 and the second outer side plate 61.

[0059] A tray structure includes a first cavity 11 and a second cavity 12 formed by folding the above-mentioned cardboard structure; the first cavity 11 and the second cavity 12 are fixedly connected through a connecting plate 3 and a clamping plate 8. As Figure 4 shown, for the above-mentioned cardboard, first fold the connecting plate 3 into a V-shaped card slot along the tooth knife fold line 5, then fold the first side plate 4 inward so that a V-shaped card slot structure is formed between the first outer plate 41, the first inner plate 42 and the support part 43, and engage the clamping plates 8 on the upper and lower sides of the connecting plate 3 with each other. Finally, fold the second side plate 6 inward and insert the boss 64 on the second inner plate 63 into the groove 65 to form a tray structure with a first cavity 11 and a second cavity 12.

[0060] As Figure 5 shown, a plurality of partition grooves 9 on the first inner plate 42 and a plurality of partition grooves 9 on the connecting plate 3 are symmetrically distributed on the upper and lower sides of the first cavity 1 and the second cavity 2 for partitioning and fixing products. The side wings 7 are provided on the second outer plate 61, which can seal the left and right sides of the connecting plate 3 that is folded into a V-shaped card slot between the first cavity 11 and the second cavity 12, so that the tray structure can better protect the products.

[0061] When using this tray structure to hold products, the products can be sequentially clamped in the partition grooves 9 along the distribution direction of the partition grooves 9. Compared with the tray structure with a single cavity in Embodiment 1, the tray structure in this embodiment can fix the products and partition between the products to prevent the products from scattering and colliding with each other during the boxing process, resulting in bruises, breakages and other bad phenomena. At the same time, it can accommodate more products at one time, further improving the loading efficiency of the tray structure and saving packaging costs.

[0062] In other embodiments, the cardboard structure may include N connecting plates 3, N + 1 bottom plates 1, a first side plate 4 provided on one side of the bottom plate 1 away from the connecting plate 3, and second bottom plates 6 symmetrically provided on the remaining two sides of the bottom plate 1; where N is greater than 1. The tray structure formed by folding this cardboard structure includes N + 1 cavities.

[0063] The above embodiments are only for illustrating the technical concept and features of the present utility model, and the purpose is to enable those who are familiar with this technology to understand the content of the present utility model and implement it accordingly, and it should not be used to limit the protection scope of the present utility model. For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present utility model, the present utility model can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, it is intended to embrace all changes that fall within the meaning and scope of the equivalent elements of the claims in the present utility model.

Claims

1. A paperboard structure, characterized in that: It comprises a bottom plate (1), a first side plate (4) and a second side plate (6) arranged in different side length directions of the bottom plate (1); The connection between the bottom plate (1) and the first side plate (4) and the second side plate (6) is provided with a toothed knife folding line (5); The first side plate (4) comprises a first outer side plate (41), a first inner side plate (42) and a support portion (43) separated by a toothed knife fold line (5); The first inner plate (42) is provided with a separation groove (9); The separation grooves (9) are opened in a direction perpendicular to the support portion (43) and are arranged in a direction parallel to the support portion (43); The top end of the separation groove (9) is close to the first outer plate (41), and the bottom end of the separation groove (9) is close to the support portion (43).

2. A paperboard structure according to claim 1, characterized in that: The separation grooves (9) are arranged at equal distances or at non-equidistant distances.

3. A paperboard structure according to claim 2, characterized in that: Side ears (44) are symmetrically arranged on the other two sides of the first inner plate (42); a toothed knife fold line (5) is arranged between the side ears (44) and the first inner plate (42); The other two sides of the first outer side plate (41) are symmetrically provided with snap-on plates (8); the snap-on opening of the snap-on plate (8) faces the side of the first inner side plate (42) adjacent thereto, and / or faces the side of the bottom plate (1) adjacent thereto; A toothed knife folding line (5) is provided between the clamping plate (8) and the first outer side plate (41).

4. A paperboard structure according to claim 3, characterized in that: The second side plate (6) comprises a second outer side plate (61), a second inner side plate (63) and a support plate (62) separated by a toothed knife fold line (5); A boss (64) is provided on the side of the second inner plate (63) away from the support plate (62); and a groove (65) for accommodating the boss (64) is provided on the side of the bottom plate (1) connected to the second side plate (6).

5. A paperboard structure according to claim 4, characterized in that: The bottom plate (1) is rectangular, the first side plates (4) are symmetrically arranged on two sides of the bottom plate (1) with longer sides, and the second side plates (6) are symmetrically arranged on two sides of the bottom plate (1) with shorter sides.

6. A paperboard structure according to claim 4, characterized in that: Also includes a connecting plate (3); The upper side and the lower side of the connecting plate (3) are respectively connected to a bottom plate (1); a toothed knife folding line (5) is provided between the connecting plate (3) and the bottom plate (1); A toothed knife folding line (5) is provided on the connecting plate (3) parallel to the central axis of the bottom plate (1); the connecting plate (3) is folded along the toothed knife folding line (5) to form a V-shaped groove; The first side plate (4) is arranged on a side of the bottom plate (1) away from the connecting plate (3); and the second side plate (6) is symmetrically arranged on the other two sides of the bottom plate (1).

7. A paperboard structure according to claim 6, characterized in that: A separation groove (9) is respectively provided on one side of the connecting plate (3) connected to the bottom plate (1); The separation grooves (9) are opened in a direction perpendicular to the bottom plate (1) and arranged in a direction parallel to the bottom plate (1); The top end of the separation groove (9) is close to the central axis of the connection plate (3) and parallel to the bottom plate (1), and the bottom end of the separation groove (9) is close to the bottom plate (1).

8. A paperboard structure according to claim 6, characterized in that: A side wing (7) is provided on the second outer plate (61) located on the upper side or the lower side of the connecting plate (3) and adjacent to the connecting plate (3); a toothed knife folding line (5) is provided between the side wing (7) and the second outer plate (61).

9. A tray structure, characterized in that: It comprises a cavity (2) formed by folding the paperboard structure according to claim 4.

10. A tray structure, characterized in that: It comprises a first cavity (11) and a second cavity (12) formed by folding the paperboard structure according to claim 8; the first cavity (11) and the second cavity (12) are fixedly connected via a connecting plate (3) and a clamping plate (8).

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