Paper-plastic product

Abstract

The utility model relates to the technical field of packaging boxes, in particular to a paper-plastic product which comprises an integrally-formed paperboard body and a profiling cavity formed in the paperboard body. The paper board is characterized in that at least one side edge of the paper board body is provided with a turnover board in the length direction; a concave part is formed on the turnover plate; and the concave part and the profiling cavity are concave towards the same side perpendicular to the end face of the paperboard body. According to the paper-plastic product, through a paper-plastic bending process, an original inverted buckling area is overturned to a plane, and the purpose of simultaneous forming is achieved. Compared with a process of fixedly connecting a paper support semi-finished product with a back-off structure through a bonding mode and the like in the prior art, the production process of the paper-plastic product provided by the utility model is simple, low in labor cost, high in production efficiency, high in yield, suitable for mass production and more environmentally friendly; the problems that in the prior art, a paper support structure product is complex in production process, low in production efficiency and high in cost are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging boxes, in particular to a paper-plastic product. Background Art

[0002] Paper packaging is one of the industries with the largest use and consumption in the market. As a high-end consumer product, product packaging is a key factor in attracting consumers and a way to reflect the value of the product. The inner support structure in paper packaging is particularly important for the protection of products. At present, many inner support structures use EVA, blister or more complex paper card structures, which cannot be completely flattened, resulting in a large space occupation, which in turn increases transportation costs. In addition, the materials are not environmentally friendly and the defects are very obvious. In addition, the more complex paper card structure requires a lot of human resources in the production process, and the labor cost is relatively high, which further increases the packaging cost of the product. The simple paper support structure has good shockproof, impact-proof, anti-static, and anti-corrosion effects, and is pollution-free to the environment. Therefore, it is more conducive to the export of manufacturers' products and is widely used in the packaging of electronics, electrical appliances, computers, mechanical parts, industrial instruments, etc. However, in the process of production and processing, in order to achieve certain special functional requirements of the product, such as tightening and fixing, it is necessary to process the undercut structure on the paper support structure; however, most of the paper support structure products, due to their special biological characteristics, have certain limitations in performance and molding methods, and only support thin-walled parts with uniform wall thickness. It is impossible to integrally process and mold the paper support body and the undercut structure of the paper support structure product through a mold using pulp such as sugarcane pulp and / or bamboo pulp, and it is also impossible to mass-produce paper support structure products. Most of the existing paper support structure products currently require the production of paper support semi-finished products first, and then process the undercut structure after the paper support semi-finished products are demoulded, and then fix the paper support semi-finished products and the undercut structure by bonding or other methods; however, this production method has a complex process, low production efficiency, and high cost, and the performance of the paper support structure products is also low. Therefore, the development of a paper support structure product that is integrally molded and has an undercut structure has become an urgent problem to be solved.

[0003] The utility model provides a paper-plastic product to solve the problems of complex production process, low production efficiency and high cost of paper support structure products in the prior art. Utility Model Content

[0004] The utility model aims to provide a paper-plastic product to solve the problems of complex process, low production efficiency and high cost of paper support structure products in the prior art.

[0005] The technical solution of the utility model is: a paper-plastic product, comprising an integrally formed paperboard body and a contoured cavity formed on the paperboard body; wherein a folding plate is provided in the length direction of at least one side of the paperboard body; a recessed portion is formed on the folding plate; the recessed portion and the contoured cavity are both recessed to the same side perpendicular to the end surface of the paperboard body.

[0006] Preferably, the folding plate at least includes a first folding plate formed on the bottom side biased toward the contoured cavity; a first recessed portion is provided on the first folding plate; a through hole is provided on the bottom of the contoured cavity for accommodating the first recessed portion after folding; the first recessed portion passes through the through hole and has a first supporting head protruding from the bottom.

[0007] Preferably, the length of the first supporting head portion of the first recessed portion is smaller than the length of the root portion.

[0008] Preferably, the folding plate further includes a second folding plate and / or a third folding plate;

[0009] The second folding plate and the third folding plate are respectively arranged on one side of the paperboard body parallel to and / or perpendicular to the side length direction of the bottom;

[0010] The second folding plate and the third folding plate are respectively provided with a second recessed portion and a third recessed portion;

[0011] The contours of the second supporting head on the second recessed portion and the third supporting head on the third recessed portion are respectively the same as the contours of the side wall or the top of the adjacent contoured cavity.

[0012] Preferably, a V-shaped space is reserved at the top corner of the paperboard body, and the folding plate is formed in the length direction of the side of the paperboard body.

[0013] Preferably, a plurality of limit blocks protruding toward the inner side of the profiling cavity are arranged on the side wall of the profiling cavity.

[0014] Preferably, the paperboard body is rectangular; the contoured cavity is arranged along a length direction parallel to the paperboard body;

[0015] The side wall of the profiling cavity is composed of a plane structure and / or an arc structure; the top and bottom of the profiling cavity are both plane structures.

[0016] Preferably, the folding plate comprises a first folding plate and a third folding plate; the first folding plate is arranged on a side close to the bottom of the profiling cavity; the third folding plate is arranged on a side close to the top of the profiling cavity.

[0017] Preferably, the folding plate includes a first folding plate, a second folding plate, and a third folding plate;

[0018] The first folding plate is arranged on one side close to the bottom of the profiling cavity; the second folding plate is symmetrically arranged on both sides of the paperboard body in the length direction; and the third folding plate is arranged on one side close to the top of the profiling cavity.

[0019] Preferably, the first folding plate is folded toward the outer direction of the bottom so that the first recessed portion is inverted in the through hole; the second folding plate is folded toward the outer direction of the side wall so that the second supporting head and the side wall are close to each other; the third folding plate is folded toward the outer direction of the top so that the third supporting head and the top are close to each other.

[0020] Compared with the prior art, the advantages of the utility model are:

[0021] (1) The utility model provides a paper-plastic product, which achieves the purpose of simultaneous molding by flipping the original undercut area to a plane through a paper-plastic bending process. Compared with the process of fixing a paper tray semi-finished product with an undercut structure by bonding or the like in the prior art, the paper-plastic product provided by the present application has a simple production process, low labor cost, high production efficiency, high yield rate, is suitable for mass production, and is more environmentally friendly; it solves the problems of complex production process, low production efficiency, and high cost of paper tray structure products in the prior art. In addition, the paper-plastic product has excellent biodegradability, can conform to the industry trend of de-plasticization, and is widely used in industries such as cosmetics, industrial packaging, and catering, thereby expanding its scope of use.

[0022] (2) The utility model provides a paper-plastic product, wherein a first folding plate is arranged on one side of the bottom of the profiling cavity on the board body, and a through hole is arranged at the bottom of the profiling cavity. The first folding plate is folded toward the back side of the paperboard body, and its first recessed portion passes through the through hole and abuts against the article contained in the profiling cavity to support the bottom surface of the article, so that the profiling cavity and the article are more closely fitted, thereby preventing the bottle from shaking in the profiling cavity or scattering during transportation, causing damage to the article. A third folding plate is arranged on the top side of the paperboard body, which is biased toward the profiling cavity, and / or second folding plates are arranged on both sides of the side wall of the profiling cavity. The second folding plate and the third folding plate can not only increase the supporting force around the paper plastic product, increase the structural strength of the paper plastic product, and have a shock-absorbing effect on the product in the profiling cavity, but also facilitate the taking and placing of the paper plastic product. In addition, the contour of the second supporting head on the second concave part is the same as the contour of the side wall of the adjacent profiling cavity, and the contour of the third supporting head on the third concave part is the same as the top contour of the profiling cavity, so that the contact area between the concave part on the folding plate and the profiling cavity is larger. When the folding plate is pressed by an external force to squeeze the profiling cavity, due to its larger contact surface, the local pressure can be effectively reduced, and a good buffering effect is played on the articles contained in the profiling cavity, thereby improving the buffering and protection performance of the paper plastic product on the articles contained in the profiling cavity.

[0023] (3) The utility model provides a paper-plastic product, in which a plurality of limit blocks are arranged on the side wall of the contour cavity of the paper-plastic product, which can fix and limit the product contained in the contour cavity, and effectively solve the problem of product scattering during movement and transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0025] Figure 1 This is a schematic diagram of the three-dimensional structure of the paper-plastic product described in Embodiment 1 of the present utility model;

[0026] Figure 2 This is a schematic diagram of the three-dimensional structure of the paper-plastic product described in the second embodiment of the utility model;

[0027] Figure 3 This is a schematic diagram of the three-dimensional structure of the paper-plastic product described in the second embodiment of the utility model;

[0028] Figure 4 This is a top view of the paper-plastic product described in Embodiment 2 of the present utility model;

[0029] Figure 5 This is a side view of the paper-plastic product described in Embodiment 2 of the present utility model;

[0030] Figure 6 This is a schematic diagram of the three-dimensional structure of the paper support structure described in the second embodiment of the present utility model;

[0031] Figure 7 This is a schematic diagram of the three-dimensional structure of the paper support structure described in the second embodiment of the present utility model;

[0032] Among them: 1. cardboard body; 11. contoured cavity; 2. folding plate; 21. first folding plate; 22. second folding plate; 23. third folding plate; 3. recessed portion; 31. first recessed portion; 32. second recessed portion; 33. third recessed portion; 311. first supporting head; 321. second supporting head; 331. third supporting head; 4. side wall; 41. limit block; 5. bottom; 51. through hole; 6. top; 7. V-shaped space. DETAILED DESCRIPTION

[0033] The following is a further detailed description of the present invention in conjunction with specific embodiments:

[0034] In the description of the present invention, it should be noted that the terms "left", "right", "back", "front", "front", "back", "up", "down", "inside", "outside", "side", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred to components must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0035] Implementation Method 1

[0036] A paper-plastic product comprises an integrally formed paperboard body 1 and a contoured cavity 11 formed on the paperboard body 1; Figure 1 As shown, the cardboard body 1 is rectangular; the profiling cavity 11 is arranged along the length direction parallel to the cardboard body 1; the profiling cavity 11 is arranged on the front of the cardboard body 1 and is recessed into the back of the cardboard body 1, and the side wall 4 of the profiling cavity 11 is composed of a plane structure and an arc structure; the top 6 and the bottom 5 of the profiling cavity 11 are both plane structures. In addition, a plurality of protruding limit blocks 41 are also arranged on the side wall 4 of the profiling cavity 11, and the limit blocks 41 protrude toward the inner side of the profiling cavity 11, which play a role in fixing and limiting the product contained in the profiling cavity 11, and solve the problem of product scattering during movement and transportation. In other embodiments, the profiling cavity 11 can be arranged along the width direction parallel to the cardboard body 1; or the cardboard body 1 can also be square. The side wall 4 of the profiling cavity 11 can be a single plane structure or an arc structure; the top 6 of the profiling cavity 11 can be a non-planar structure.

[0037] The first folding plate 21 and the third folding plate 23 are respectively provided in the width direction of the paperboard body 1, and the first folding plate 21 is provided on the side close to the bottom 5 of the profiling cavity 11; the third folding plate 23 is provided on the side close to the top 6 of the profiling cavity 11. In other embodiments, only the first folding plate 21 may be provided on the peripheral side of the paperboard body 1.

[0038] The first folding plate 21 and the third folding plate 23 are respectively provided with a first recessed portion 31 and a third recessed portion 33; and the first recessed portion 31, the third recessed portion 33 and the contour cavity 11 are all recessed to the same side perpendicular to the end surface of the paperboard body 1. A through hole 51 is provided on the bottom 5 of the contour cavity 11, which can be used to accommodate the first recessed portion 31; after the first folding plate 21 is folded toward the back of the paperboard body 1, that is, folded toward the outside close to the contour cavity 11, the first recessed portion 31 is reversed and buckled into the through hole 51, and can penetrate the through hole 51, so that the first supporting head 311 protrudes from the bottom 5 and abuts against the bottom 5 of the product accommodated in the contour cavity 11. The length of the first supporting head portion 311 of the first recessed portion 31 is shorter than the length of the root portion; the length of the through hole 51 provided on the bottom portion 5 is longer than the length of the first supporting head portion 311 but shorter than the length of the root portion, so that the first recessed portion 31 can pass through the through hole 51 and the first supporting head portion 311 of the first recessed portion 31 protrudes, but the protruding length is controllable; thus, the first recessed portion 31 can support the product contained in the profiling cavity 11, so that the profiling cavity 11 fits the article more closely, and prevents the bottle from shaking in the profiling cavity 11 or scattering during transportation, thereby causing damage to the product; and can also prevent the first recessed portion 31 from being too tightly pressed against the product contained in the profiling cavity 11 due to extrusion or deformation under force, thereby causing extrusion or damage to the product in the profiling cavity 11. The contour of the third supporting head (331) on the third recessed portion 33 is the same as the contour of the top 6 of the profiling cavity 11. After the third folding plate 23 is folded toward the back of the paperboard body 1, the third supporting head (331) on the third recessed portion 33 and the top 6 of the profiling cavity 11 are close to each other. The third recessed portion 33 is provided on the third folding plate 23, which can not only support the paper-plastic product, but also effectively prevent the paper-plastic product from being deformed by external force, so that the paper-plastic product has excellent buffering and protection effects on the product contained in the profiling cavity 11; it can also facilitate the taking and placing of the paper-plastic product; the third folding plate 23 is provided on a side close to the top 6 of the profiling cavity 11. When the paper-plastic product needs to be taken out of the packaging box, the third recessed portion 33 can act as a pull ring, which is conducive to pulling out after pinching, and avoids the phenomenon of hand slipping due to insufficient friction due to the plane structure when pulling hard.

[0039] Implementation Method 2

[0040] A paper-plastic product comprises an integrally formed paperboard body 1 and a contoured cavity 11 formed on the paperboard body 1; Figure 2As shown, a contour cavity 11 is provided on the front of the cardboard body 1, and the contour cavity 11 is recessed toward the back of the cardboard body 1. The side wall 4 of the contour cavity 11 is composed of a plane structure and / or an arc structure; the top 6 and the bottom 5 of the contour cavity 11 are both plane structures; the side wall 4 of the contour cavity 11 is also provided with a plurality of stoppers 41 protruding toward the inner side of the contour cavity 11, and the stoppers 41 play a role in fixing and limiting the product contained in the contour cavity 11. In other embodiments, other methods that can play the same role in limiting and fixing the product can be used to replace the stoppers 41 in the present application; or the size of the contour cavity 11 is slightly smaller than the size of the product, and the contour cavity 11 is interference-fitted with the product to fix the product, etc.

[0041] like Figure 3 As shown, V-shaped spaces 7 are reserved at the four corners of the paperboard body 1, and folding plates 2 are formed in the length direction of the paperboard body 1. The folding plates 2 are provided with recessed portions 3, and the recessed portions 3 and the contoured cavity 11 are recessed to the same side perpendicular to the end surface of the paperboard body 1.

[0042] like Figure 4 As shown, the folding plate 2 includes a first folding plate 21, a second folding plate 22, and a third folding plate 23; and the first folding plate 21 is arranged on one side close to the bottom 5 of the profiling cavity 11, the third folding plate 23 is arranged on one side close to the top 6 of the profiling cavity 11, and the second folding plate 22 is symmetrically arranged on the other two sides of the paperboard body 1. A first recessed portion 31 is arranged on the first folding plate 21; the bottom 5 of the profiling cavity 11 is a planar structure, and a through hole 51 is arranged on the bottom 5; the through hole 51 is used to accommodate the first recessed portion 31; the first recessed portion 31 passes through the through hole 51, and has a first supporting head 311 protruding from the bottom 5; and the length of the first supporting head 311 of the first recessed portion 31 is less than the length of its root.

[0043] like Figure 5As shown, the second folding plate 22 is provided with a second recessed portion 32, and the contour of the second supporting head 321 on the second recessed portion 32 is the same as the contour of the side wall 4 of the adjacent profiling cavity 11, and both are arc-shaped structures; when the second folding plate 22 is folded, the second recessed portion 32 and the side wall 4 of the profiling cavity 11 are close to each other, so that the second supporting head 321 can fit with the side wall 4. The second folding plate 22 can support and protect the paper-plastic product, and when the second folding plate 22 is subjected to external force to make the second supporting head 321 contact with the side wall 4, because the contour of the second supporting head 321 fits with the contour of the side wall 4 of the adjacent profiling cavity 11, the contact surface between the second supporting head 321 and the side wall 4 is large, which can effectively reduce the local pressure and play a good buffering role for the product contained in the profiling cavity 11. Similarly, a third recessed portion 33 is also provided on the third folding plate 23, and the contour of the third supporting head 331 on the third recessed portion 33 is the same as the contour of the top 6 of the profiling cavity 11, both of which are planar structures; when the third supporting head 331 contacts the top 6 of the profiling cavity 11, the contact surface is maximized, so that the third folding plate 23 can better buffer and protect the product contained in the profiling cavity 11.

[0044] like Figure 6 , Figure 7 As shown, after the first folding plate 21 is folded toward the back side of the paperboard body 1, the first recessed portion 31 passes through the through hole 51, and the first supporting head portion 311 protrudes, so as to be able to abut against the product contained in the profiling cavity 11; the second folding plate 22 and the third folding plate 23 are both folded toward the back side of the paperboard body 1, so that the second recessed portion 32 and the third recessed portion 33 are close to the outer sides of the side wall 4 and the top 6 of the profiling cavity 11. Among them, the second folding plate 22 and the third folding plate 23 can not only increase the supporting force around the paper plastic product, so that the structural strength of the paper plastic product is increased, but also play a shock absorbing effect on the product in the profiling cavity 11, and improve the cushioning and protection performance of the paper plastic product on the items contained in the profiling cavity 11; in addition, the second folding plate 22 can also be equivalent to the handles on the left and right sides of the paper plastic product, which is convenient for picking up or moving the paper plastic product, and the second folding plate 22 is also provided with a second recessed portion 32, which can also prevent the occurrence of hand slipping due to insufficient friction due to the flat structure when picking up or moving. In other embodiments, the folding plate 2 can only include the first folding plate 21 and the second folding plate 22.

[0045] The above embodiments are only for illustrating the technical concept and features of the utility model, and their purpose is to enable people familiar with this technology to understand the content of the utility model and implement it accordingly, and they cannot be used to limit the protection scope of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and the utility model can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is limited by the attached claims rather than the above description, so it is intended to include all changes within the meaning and scope of the equivalent elements of the claims in the utility model.

Claims

1. A paper-plastic product, comprising an integrally formed paperboard body (1), and a contoured cavity (11) formed on the paperboard body (1); characterized in that: A folding plate (2) is provided on at least one side of the paperboard body (1) in the longitudinal direction; a recessed portion (3) is formed on the folding plate (2); the recessed portion (3) and the contoured cavity (11) are both recessed to the same side perpendicular to the end surface of the paperboard body (1).

2. A paper-plastic product according to claim 1, characterized in that: The folding plate (2) at least comprises a first folding plate (21) formed on a side of the bottom (5) of the profiling cavity (11); a first recessed portion (31) is provided on the first folding plate (21); a through hole (51) is provided on the bottom (5) of the profiling cavity (11) for accommodating the first recessed portion (31) after being folded; the first recessed portion (31) passes through the through hole (51) and has a first supporting head portion (311) protruding from the bottom (5).

3. A paper-plastic product according to claim 2, characterized in that: The length of the first supporting head portion (311) of the first recessed portion (31) is smaller than the length of the root portion.

4. A paper-plastic product according to claim 3, characterized in that: The folding plate (2) further comprises a second folding plate (22) and / or a third folding plate (23); The second folding plate (22) and the third folding plate (23) are respectively arranged on one side of the paperboard body (1) parallel to and / or perpendicular to the side length direction of the bottom (5); The second folding plate (22) and the third folding plate (23) are respectively provided with a second recessed portion (32) and a third recessed portion (33); The contours of the second supporting head (321) on the second recessed portion (32) and the third supporting head (331) on the third recessed portion (33) are respectively the same as the contours of the side wall (4) or the top (6) of the adjacent contoured cavity (11).

5. A paper-plastic product according to claim 4, characterized in that: A V-shaped space (7) is reserved at the top corner of the paperboard body (1), and the folding plate (2) is formed in the length direction of the side of the paperboard body (1).

6. A paper-plastic product according to claim 5, characterized in that: A plurality of limit blocks (41) protruding toward the inside of the profiling cavity (11) are arranged on the side wall (4) of the profiling cavity (11).

7. A paper-plastic product according to claim 6, characterized in that: The paperboard body (1) is rectangular; the contour cavity (11) is arranged along a length direction parallel to the paperboard body (1); The side wall (4) of the profiling cavity (11) is composed of a plane structure and / or an arc structure; the top (6) and the bottom (5) of the profiling cavity (11) are both plane structures.

8. A paper-plastic product according to claim 7, characterized in that: The folding plate (2) comprises a first folding plate (21) and a third folding plate (23); the first folding plate (21) is arranged on a side close to a bottom (5) of the profiling cavity (11); and the third folding plate (23) is arranged on a side close to a top (6) of the profiling cavity (11).

9. A paper-plastic product according to claim 7, characterized in that: The folding plate (2) comprises a first folding plate (21), a second folding plate (22), and a third folding plate (23); The first folding plate (21) is arranged on one side close to the bottom (5) of the profiling cavity (11); the second folding plate (22) is symmetrically arranged on both sides of the length direction of the paperboard body (1); and the third folding plate (23) is arranged on one side close to the top (6) of the profiling cavity (11).

10. A paper-plastic product according to claim 9, characterized in that: The first folding plate (21) is folded toward the direction close to the outside of the bottom (5), so that the first recessed portion (31) is inverted and locked into the through hole (51); the second folding plate (22) is folded toward the direction close to the outside of the side wall (4), so that the second supporting head (321) and the side wall (4) are close to each other; the third folding plate (23) is folded toward the direction close to the outside of the top (6), so that the third supporting head (331) and the top (6) are close to each other.

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