Corrugated board packaging box
By introducing a folding block structure into the corrugated board packaging box, the problems of inaccurate fixation and shaking of the flip board are solved, and the stability and load-bearing capacity are improved, production costs are reduced, and the competitiveness of the product is enhanced.
Patent Information
- Application Number
- CN202421663573.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-15
- Publication Date
- 2025-07-04
- Estimated Expiration
- 2034-07-15
AI Technical Summary
The flip plate fixing method of existing corrugated board packaging boxes has poor aesthetics and pollution problems after cold chain transportation. The flip plate is prone to shake and affects stability, resulting in high production costs and insufficient load-bearing capacity.
The folding block structure is adopted, and the two adjacent sides of the folding block are integrated with the flip plate and the buckle plate respectively. The middle fold line intersects the right-angle fold line and the middle fold line are bisectorally divided into angles. The side opening groove and the middle opening groove are set to reduce the folding difficulty and rebound force. The inclined fold line design allows the folding block to automatically lean towards the buckle plate direction, increasing the number of layers of the stressed surfaces.
It improves the stability and bearing capacity of corrugated board packaging boxes, reduces production costs, and enhances the competitiveness of products.
Smart Images
Figure CN223059483U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of packaging boxes, and more specifically to a corrugated board packaging box. Background Art
[0002] Corrugated board (corrugated paper) packaging boxes have been widely used in all aspects of people's production and life. The lidless box and the airplane box are two relatively common types of packaging boxes. The stress-bearing surface of the box body of the corrugated board packaging box is generally the side wall (i.e., the fastening board) with the corrugations vertical after folding. The more the number of corrugation layers on one side of the fastening board after folding, the stronger the stress-bearing capacity of the box body and the lid. The thicker the corrugated board, the more corrugation layers it contains, and thus the stronger its stress-bearing capacity. Therefore, the greater the thickness of the corrugated board used to make the packaging box, the greater the load-bearing capacity of the packaging box, but this also leads to an increase in the cost of the packaging box.
[0003] The non-stress-bearing surface of the box body of the corrugated board packaging box is generally the turnover board, which mainly has two functions. One is to prevent the internal load from slipping out, and the other is to cooperate with the fastening board through the protruding blocks on both sides to form a shape. There are two fixing methods for the protruding blocks of the existing turnover board: The first is to bond them to the inner side of the fastening board with glue, but this method has poor precision in folding the glued box and will also cause the cross-section of the corrugated board to be exposed. Therefore, the aesthetics of the packaging box after folding and forming is poor, and after cold chain transportation, the cross-section of the corrugated board will have problems such as dirt and delamination when exposed to moisture. The second is to set a fastening board with two folds and clamp the protruding blocks between the two-fold fastening boards. However, since there is a gap between the protruding blocks and the space between the two-fold fastening boards, the protruding blocks can move in this space, which in turn causes the turnover board to shake slightly during use, affecting the stability of the product. Summary of the Utility Model
[0004] In view of the deficiencies of the prior art, this application provides a corrugated board packaging box, which optimizes the structure of the product box body, can effectively improve the stability of the product after forming, and can also improve the load-bearing capacity of the product made of corrugated boards with the same number of corrugation layers, reducing the production cost of products with the same load-bearing capacity, greatly promoting the progress of the industry, and improving the competitiveness of the product.
[0005] A corrugated board packaging box includes a box body formed by cutting and folding corrugated boards; the box body is composed of a middle board, turnover boards symmetrically arranged on the left and right sides of the middle board, fastening boards symmetrically arranged on the upper and lower sides of the middle board, and a fastening strip arranged in the middle of the fastening board; folding blocks are also arranged on the box body.
[0006] Further, two adjacent sides of the folding block are integrally fixed to the flipping plate and the buckling plate respectively; the side of the folding block fixed to the flipping plate is an inclined broken line, and the side of the folding block fixed to the buckling plate is a right-angled broken line; a middle broken line is further provided on the folding block, which is led out from the intersection point of the inclined broken line and the right-angled broken line, and the middle broken line bisects the included angle β between the inclined broken line and the right-angled broken line.
[0007] Preferably, a side opening groove coinciding with the right-angled broken line is provided on the right-angled broken line, and the length of the side opening groove is 1 / 2 to 2 / 3 of the length of the right-angled broken line; the midpoint of the side opening groove coincides with the midpoint of the right-angled broken line.
[0008] Preferably, a middle opening groove coinciding with the middle broken line is provided on the middle broken line, and the length of the middle opening groove is 1 / 2 to 2 / 3 of the length of the middle broken line; the starting position of the middle opening groove is the intersection point of the inclined broken line and the right-angled broken line.
[0009] Preferably, the horizontal distance between the intersection point of the inclined broken line and the outer side of the flipping plate and the intersection point of the inclined broken line and the right-angled broken line is L, the width of the buckling strip is H, and the thickness of the corrugated board is X; H is greater than L, and L is greater than 2×X.
[0010] As another preference, a side block is further fixed on a side of the folding block opposite to the inclined broken line.
[0011] Compared with the prior art, the embodiments of the present application have the following beneficial effects:
[0012] The utility model optimizes the structure of the product box body, which can not only effectively improve the stability of the product after molding, but also improve the bearing capacity of the product made of corrugated boards with the same number of layers of corrugations, so that the production cost of the product with the same bearing capacity is reduced, greatly promoting the progress of the industry and improving the competitiveness of the product.
[0013] Some additional features of the present application can be described below. By checking the following description and the corresponding drawings, or by understanding the production or operation of the embodiments, some additional features of the present application are obvious to those skilled in the art. The features disclosed in the present application can be realized and achieved by practicing or using various methods, means and combinations of the specific embodiments described below. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] The drawings described herein are used to provide a further understanding of the present application, and constitute a part of the present application. The schematic embodiments and descriptions thereof of the present application are used to explain the present application, and do not constitute a limitation to the present application. In the drawings, the same reference numerals represent the same components. Among them,
[0015] Figure 1This is a schematic structural diagram of the present utility model.
[0016] Figure 2 It is Figure 1 an enlarged view of part A of
[0017] Figure 3 This is another schematic structural diagram of the present utility model.
[0018] Figure 4 It is Figure 1 a schematic diagram of the corrugation direction of the stress surface of
[0019] Figure 5 It is Figure 3 a schematic diagram of the corrugation direction of the stress surface of
[0020] Figure 6 It is Figure 1 a top view after folding and forming.
[0021] Explanation of reference numerals in the drawings: 100, box body; 101, middle plate; 102, flip plate; 103, fastening plate; 104, fastening strip; 105, folding block; 106, right-angle fold line; 107, side opening groove; 108, middle fold line; 109, middle opening groove; 110, inclined fold line; 111, edge block. Detailed implementation manners
[0022] In order to enable those skilled in the art of the present technology to better understand the solution of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present application.
[0023] It should be noted that if the terms "first", "second", etc. are involved in the description of the present application, the specification, the claims and the above-mentioned drawings, they are used to distinguish similar objects and do not necessarily need to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so as to describe the embodiments of the present application here. In addition, if the terms "include" and "have" and any of their variants are involved, the intention is to cover non-exclusive inclusion. For example, a process, method, system, product or device including a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products or devices.
[0024] In this application, if terms such as "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", etc. are involved, the orientation or positional relationship indicated is based on the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe this application and its embodiments, and are not used to limit that the indicated device, element, or component must have a specific orientation, or be constructed and operated in a specific orientation.
[0025] Moreover, in addition to being able to represent the orientation or positional relationship, some of the above terms may also be used to represent other meanings. For example, the term "upper" may also be used to represent a certain attachment relationship or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this application can be understood according to the specific circumstances.
[0026] In addition, in this application, if terms such as "installation", "setting", "provided with", "connection", "connected", "socketed", etc. are involved, they should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or there is an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances.
[0027] It should be noted that, without conflict, the embodiments in this application and the features in the embodiments can be combined with each other. The following will refer to the drawings and combine with embodiments to detail this application.
[0028] Embodiment 1
[0029] As Figure 1 、 6 shown, a corrugated board packaging box includes a box body 100 formed by cutting and folding corrugated boards; the box body 100 is composed of a middle board 101, flipping boards 102 symmetrically arranged on the left and right sides of the middle board 101, buckling boards 103 symmetrically arranged on the upper and lower sides of the middle board 101, and a buckling strip 104 arranged in the middle of the buckling board 103; characterized in that, a folding block 105 is further arranged on the box body 100.
[0030] The above structure of the box body except for the folding block is prior art, and its cutting and folding methods are also prior art. Those skilled in the art can complete its cutting and folding without creative labor, and will not be elaborated here.
[0031] The box body can be the bottom of a box with a top and bottom lid, or the lid of a box with a top and bottom lid. If the box body is used as the box body of an airplane box, the outer side of the flip plate on one side needs to be cut to connect the lid structure thereto.
[0032] like Figure 2 As shown, two adjacent sides of the folding block 105 are respectively fixed to the flip plate 102 and the buckling plate 103; the side where the folding block 105 is fixed to the flip plate 102 is the inclined fold line 110, and the side where the folding block 105 is fixed to the buckling plate 103 is the right-angle fold line 106; the folding block 105 is also provided with a middle fold line 108 drawn from the intersection of the inclined fold line 110 and the right-angle fold line 106, and the middle fold line 108 bisects the angle β between the inclined fold line 110 and the right-angle fold line 106.
[0033] Since the angle β is greater than 90°, the angles of the parts on both sides of the middle fold line after folding are greater than 45°. Since the middle fold line divides the angle β in half, the folding block can effectively overlap the parts on both sides of the middle fold line when folded. This effectively avoids the situation where the parts on both sides of the middle fold line cannot overlap effectively due to different angles on both sides, or even a situation where the folding block generates a large rebound force after folding due to different angles on both sides.
[0034] The right-angle fold line 106 is provided with a side opening groove 107 which coincides with the right-angle fold line 106 , and the length of the side opening groove 107 is 1 / 2 of the length of the right-angle fold line 106 ; the midpoint of the side opening groove 107 coincides with the midpoint of the right-angle fold line 106 .
[0035] The side opening grooves can effectively reduce the difficulty of folding at the right-angle fold line, and can also effectively reduce the rebound force after folding at the right-angle fold line, further ensuring that the box body will not fall apart due to the rebound of the folding block when in use.
[0036] The center fold line 108 is provided with a center opening groove 109 which coincides with the center fold line 108 , and the length of the center opening groove 109 is 1 / 2 of the length of the center fold line 108 ; the starting position of the center opening groove 109 is the intersection point of the inclined fold line 110 and the right-angle fold line 106 .
[0037] The provision of the middle opening groove can effectively reduce the difficulty of folding at the middle fold line, and can also effectively reduce the rebound force after folding at the middle fold line, further ensuring that the box body will not fall apart due to the rebound of the folding block when in use.
[0038] Due to the setting of the inclined fold line, during folding, when the flipping plate is erected, only the upward-flipping fastening plate needs to be flipped up, so that the folding block can automatically fold and lean towards the direction of the fastening plate during the process of flipping up the upward-flipping fastening plate. Therefore, the upward-flipped fastening plate only needs to be flipped twice again along the upper and lower edges of the fastening strip to complete the setting of this side. If the inclined fold line is set non-inclined in the way of a right-angle fold line, the folding block will stay in the middle of the fastening plate and the flipping plate without leaning towards the fastening plate during folding. Therefore, by setting the inclined fold line, the folding difficulty of the box body is effectively reduced, the folding efficiency is improved, and at the same time, the box body can be better folded by pure mechanical equipment, reducing the functional requirements of the mechanical equipment.
[0039] The horizontal distance between the intersection point of the inclined fold line 110 and the outer side of the flipping plate 102 and the intersection point of the inclined fold line 110 and the right-angle fold line 106 is L, the width of the fastening strip 104 is H, and the thickness of the corrugated board is X; H is greater than L, and L is greater than 2×X.
[0040] Preferably, L is about 1 mm more than 2×X, and H is about 1 mm more than L. In this way, it can effectively ensure that the fastening strip can be completely fastened on the folded folding block, avoid extrusion between the fastening plate and the folding block, thereby preventing the folded folding block from being bounced off due to its own elasticity after folding, and further improving the stability of the box body.
[0041] After cutting, for the convenience of subsequent processing, it is necessary to press along the inclined fold line, the right-angle fold line, and the middle fold line, so that obvious indentations are formed at these lines, so that folding can be carried out more accurately.
[0042] As Figure 4 shown, the setting direction of the corrugation on the stress surface is marked by double solid lines. After the box body is formed, half of the structure of the folding block will become the stress surface due to folding. Therefore, without increasing the thickness of the corrugated board, the number of layers of corrugation on the stress surface is successfully increased. Therefore, when the thickness of the corrugated board is the same, the stress surface of the box body obtained in this embodiment has one more layer of corrugated board thickness than the box body obtained by the prior art. Therefore, compared with the prior art, the box body of this embodiment has a stronger bearing capacity on the basis of the same production cost.
[0043] Since two adjacent sides of the folding block are integrally structured with the flipping plate and the fastening plate respectively, after the folding block is folded, the folding block can simultaneously tighten the flipping plate and the fastening plate, and it is also difficult for the folding block to move in the space in the middle of the fastening plate. Therefore, the stability of the flipping plate can be further improved.
[0044] Embodiment 2
[0045] The difference between this embodiment and Embodiment 1 is:
[0046] The length of the side opening groove 107 is 2 / 3 of the length of the right-angled broken line 106.
[0047] The length of the middle opening groove 109 is 2 / 3 of the length of the middle broken line 108.
[0048] Embodiment 3
[0049] The difference between this embodiment and Embodiment 1 lies in:
[0050] The length of the side opening groove 107 is 7 / 12 of the length of the right-angled broken line 106.
[0051] The length of the middle opening groove 109 is 7 / 12 of the length of the middle broken line 108.
[0052] Embodiment 4
[0053] As Figure 3 shown, the difference between this embodiment and Embodiment 1 is that a side block 111 is further fixed on one side of the folding block 105 opposite to the inclined broken line 110.
[0054] As Figure 5 shown, the corrugation setting direction of the stress surface is marked by double solid lines. The side block is the part that needs to be cut off during the cutting process in the prior art. In this embodiment, it is retained and erected when the folding block is folded. When the fastening plate is folded for the second time, the side block will also be folded into the middle space of the fastening plate as a stress surface, further increasing the number of stress surfaces, and thus improving the overall stress-bearing capacity of the product.
[0055] It should be noted that after the side block is set, H is greater than L, and L is greater than 3×X.
[0056] In addition, the oval or semi-oval holes on the product are mainly used to beautify the product or ensure the air permeability inside the product, and their influence on the stress-bearing capacity of the product is negligible.
[0057] It should be noted that all the features disclosed in this specification, or all the steps in the disclosed methods or processes, except for mutually exclusive features and / or steps, can be combined in any way.
[0058] In addition, the above specific embodiments are exemplary. Those skilled in the art can come up with various solutions inspired by the disclosure content of the present invention, and these solutions also fall within the disclosure scope of the present invention and within the protection scope of the present invention. Those skilled in the art should understand that the specification and drawings of the present invention are illustrative and do not constitute a limitation to the claims. The protection scope of the present invention is defined by the claims and their equivalents.
Claims
1. A corrugated board packaging box, comprising a box body (100) formed by cutting and folding corrugated board; the box body (100) is composed of a middle board (101), turning boards (102) symmetrically arranged on the left and right sides of the middle board (101), fastening boards (103) symmetrically arranged on the upper and lower sides of the middle board (101), and a fastening strip (104) arranged in the middle of the fastening board (103); characterized in that, A folding block (105) is further provided on the box body (100).
2. The corrugated board packaging box according to claim 1, characterized in that, Two adjacent sides of the folding block (105) are integrally fixed to the turning plate (102) and the fastening plate (103) respectively; the side of the folding block (105) fixed to the turning plate (102) is an inclined broken line (110), and the side of the folding block (105) fixed to the fastening plate (103) is a right-angled broken line (106); a middle broken line (108) led out from the intersection point of the inclined broken line (110) and the right-angled broken line (106) is further provided on the folding block (105), and the middle broken line (108) bisects the included angle β between the inclined broken line (110) and the right-angled broken line (106).
3. The corrugated board packaging box according to claim 2, wherein, A side opening groove (107) coinciding with the right-angled broken line (106) is provided on the right-angled broken line (106), and the length of the side opening groove (107) is 1 / 2 - 2 / 3 of the length of the right-angled broken line (106); the midpoint of the side opening groove (107) coincides with the midpoint of the right-angled broken line (106).
4. The corrugated board packaging box according to claim 3, wherein A middle opening groove (109) coinciding with the middle broken line (108) is provided on the middle broken line (108), and the length of the middle opening groove (109) is 1 / 2 - 2 / 3 of the length of the middle broken line (108); the starting position of the middle opening groove (109) is the intersection point of the inclined broken line (110) and the right-angled broken line (106).
5. A corrugated board packaging box according to claim 4, characterized in that, The horizontal distance between the intersection point of the inclined broken line (110) and the outer side of the turning plate (102) and the intersection point of the inclined broken line (110) and the right-angled broken line (106) is L, the width of the fastening strip (104) is H, and the thickness of the corrugated board is X; H is greater than L, and L is greater than 2×X.
6. The corrugated board packaging box according to claim 5, characterized in that, An edge block (111) is further fixed on a side of the folding block (105) opposite to the inclined broken line (110).