Folding continuous packaging paperboard

Abstract

The utility model discloses a folding continuous packaging paperboard which comprises a paperboard body, the paperboard body comprises a plurality of unit paperboards, the unit paperboards are sequentially connected end to end, a bending part is arranged between every two adjacent unit paperboards, each bending part comprises an outer fold, and the unit paperboards are bent and stacked through the outer folds to form the paperboard body; by arranging the bending parts and the outer creases, the multiple unit paperboards are folded through the bending parts, the bending parts are of structures different from the unit bodies, the buffering effect is achieved, damage or tearing to the internal structures of the unit paperboards due to direct bending is avoided, and therefore the integrity and continuity of the paperboard bodies are guaranteed; and paper feeding of carton processing is prevented from being affected by unit paperboard breakage, so that the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging cardboard, and particularly relates to a folding continuous packaging cardboard. Background Art

[0002] For existing fully automatic carton forming machines, the cardboard used for producing cartons is mostly made into cardboard with a longer length, and then stacked one by one and transported to the paper inlet of the fully automatic carton forming machine through containers or the like. For such discontinuous cardboard, during production, workers need to manually feed one piece of cardboard into the paper inlet, which is troublesome in paper feeding operation, has high production cost, and such cardboard with a longer length occupies a large space and is not convenient for transportation and production.

[0003] Existing folding continuous cardboard generally stores the cardboard in a Z-shaped stack, and when bending, the structural strength at the bending part of the cardboard is relatively low. Since the bending damages the internal support structure of the cardboard, it is easy to be torn at the bending part, resulting in the breakage of the continuous cardboard, destroying the continuity and reducing the cardboard processing efficiency. Content of the Utility Model

[0004] Aiming at the deficiencies of the prior art, a folding continuous packaging cardboard is proposed, which solves the problems that the bending in the above background art damages the internal support structure of the cardboard, is easy to be torn at the bending part, and causes the breakage of the continuous cardboard.

[0005] To achieve the above purpose, the following technical solutions are proposed by the utility model for implementation:

[0006] A folding continuous packaging cardboard, including a cardboard body, the cardboard body includes a plurality of unit cardboards, the plurality of unit cardboards are connected end to end in sequence, a bending part is arranged between two adjacent unit cardboards, the bending part includes an outer crease, and the unit cardboards are bent and stacked through the outer crease to form the cardboard body.

[0007] Further, the unit cardboard includes a first layer part and a second layer part, a core board is arranged between the first layer part and the second layer part, and the core board supports the first layer part and the second layer part to improve the strength of the unit cardboard.

[0008] Further, the core board includes a fixing board and a connecting board, the fixing board is fixedly connected to the inner side surface of the first layer part or the second layer part, and connecting boards are respectively arranged on both sides of the fixing board.

[0009] Further, the fixing boards on the first layer part and the fixing boards on the second layer part are arranged in an alternating manner, and two adjacent upper and lower fixing boards are connected through a connecting board.

[0010] Further, the connecting plate is symmetric about the fixing plate and is arranged at an angle with the fixing plate, and the angle between the connecting plate and the fixing plate is adjustable.

[0011] Further, the outer crease is arranged on the outer surface of the first layer part or the second layer part, and the outer crease is located between two adjacent fixing plates on the same first layer part or second layer part.

[0012] Further, the bending part further includes an inner crease, the inner crease is symmetrically arranged on two connecting plates on both sides of the outer crease, and the inner crease is located on the side of the connecting plate close to the outer crease.

[0013] Further, there are two outer creases arranged on the outer surface of the first layer part or the second layer part, and the two outer creases are located on both sides of the fixing plate on the same first layer part or second layer part.

[0014] Compared with the prior art, the comprehensive effects brought by the present utility model include:

[0015] By arranging the bending part and the outer crease, multiple unit paperboards are folded through the bending part. The bending part adopts a structure different from that of the unit body, playing a buffering role, avoiding damage or tearing to the internal structure of the unit paperboard due to direct bending, thereby ensuring the integrity and continuity of the paperboard body, and avoiding the influence on the paper feeding of carton processing due to the disconnection of the unit paperboard, thereby improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic diagram of the overall structure of Embodiment 1 of the present utility model;

[0017] Figure 2 is a schematic diagram of the structure of the unit paperboard of Embodiment 1 of the present utility model;

[0018] Figure 3 is a schematic diagram of the unfolded structure of the bending part of Embodiment 1 of the present utility model;

[0019] Figure 4 is a schematic diagram of the bent structure of the bending part of Embodiment 1 of the present utility model;

[0020] Figure 5 is a schematic diagram of the unfolded structure of the bending part of Embodiment 2 of the present utility model;

[0021] Figure 6 is a schematic diagram of the bent structure of the bending part of Embodiment 2 of the present utility model.

[0022] Legend: 1. Paperboard body; 2. Unit paperboard; 3. Bending part; 4. Outer crease; 5. First layer part; 6. Second layer part; 7. Fixing plate; 8. Connecting plate; 9. Inner crease. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative efforts fall within the protection scope of the present utility model.

[0024] In this article, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. The orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "top", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present utility model.

[0025] Embodiment 1:

[0026] As Figures 1 to 4 shown, a foldable continuous packaging cardboard includes a cardboard body 1. The cardboard body 1 includes a plurality of unit cardboards 2. The plurality of unit cardboards 2 are connected end to end in sequence. A bending portion 3 is provided between two adjacent unit cardboards 2. The bending portion 3 includes an outer crease 4. The unit cardboards 2 are bent and stacked through the outer crease 4 to form the cardboard body 1.

[0027] By providing the bending portion 3 and the outer crease 4, a plurality of unit cardboards 2 are folded through the bending portion 3. The bending portion 3 adopts a structure different from that of the unit body 2, playing a buffering role to avoid damage or tearing of the internal structure of the unit cardboard 2 due to direct bending, thereby ensuring the integrity and continuity of the cardboard body 1 and avoiding the influence on the paper feeding of carton processing due to the disconnection of the unit cardboard 2, thereby improving production efficiency.

[0028] Specifically, the cardboard body 1 is formed by folding a plurality of continuous unit cardboards 2 along a folding line in a "Z" shape. The lengths and widths of all the unit cardboards 2 are the same, and the cardboard body 1 is in a square shape.

[0029] In the foldable continuous packaging cardboard of this embodiment, the unit cardboard 2 includes a first layer portion 5 and a second layer portion 6. A core board is provided between the first layer portion 5 and the second layer portion 6. The core board supports the first layer portion 5 and the second layer portion 6 to improve the strength of the unit cardboard 2.

[0030] Setting the core board to separate the first layer portion 5 and the second layer portion 6 increases the thickness of the unit cardboard 2, and at the same time increases the cardboard strength, improving the practicability.

[0031] Preferably, the specific layer group structure in the first layer portion 5 and the second layer portion 6 is arranged according to the actually required functions, such as a waterproof layer, a yarn layer and other structures; the core board is fixedly connected to the first layer portion 5 and the second layer portion 6 by glue. Glue is a common fixing method for cardboard processing and is easy to operate.

[0032] In the folding continuous packaging paperboard of this embodiment, the core board includes a fixed board 7 and a connecting board 8. The fixed board 7 is fixedly connected to the inner side surface of the first layer 5 or the second layer 6. The connecting boards 8 are respectively arranged on both sides of the fixed board 7.

[0033] Specifically, the fixing plate 7 is adhered and fixed to the inner surface of the first layer 5 or the inner surface of the second layer 6 by glue, the connecting plate 8 supports the fixing plate 7, and the fixing plate 7 limits the connecting plate 8, thereby achieving the effect of increasing the strength of the core plate.

[0034] In the folding continuous packaging paperboard of this embodiment, the fixing plates 7 on the first layer 5 and the fixing plates 7 on the second layer 6 are arranged alternately, and two upper and lower adjacent fixing plates 7 are connected by a connecting plate 8.

[0035] Through the above arrangement, an isosceles trapezoidal structure is formed between the fixing plate 7 and the connecting plate 8 and the first layer 5 or the second layer 6, which not only plays a supporting and strength enhancing effect, but also reduces the material used for the core plate and saves costs.

[0036] In the folding continuous packaging paperboard of this embodiment, the connecting plate 8 is symmetrical with respect to the fixing plate 7 and is arranged at an angle with the fixing plate 7. The angle between the connecting plate 8 and the fixing plate 7 is adjustable.

[0037] Specifically, the angle between the connecting plate 8 and the fixing plate 7 inside the bending portion 3 is adjustable. Through the above arrangement, when the two unit paperboards 2 are bent by the bending portion 3, the connecting plate 8 and the fixing plate 7 in the limiting portion 3 rotate to facilitate bending, thereby preventing the connecting plate 8 from being damaged due to the fixed position.

[0038] In the folding continuous packaging paperboard of this embodiment, the outer fold 4 is arranged on the outer surface of the first layer 5 or the second layer 6, and the outer fold 4 is located between two adjacent fixing plates 7 on the same first layer 5 or the second layer 6.

[0039] Through the above arrangement, the unit paperboard 2 is bent in different directions to form a Z-shaped fold, and the outer fold 4 is located between the fixed plates 7. Figure 3 As shown, when the unit paperboard 2 is bent, a clearance space is formed between the connecting plates 8, so that the second layer 6 can be easily retracted upwards between the two connecting plates 8, and this is achieved by a folding action.

[0040] In the folding continuous packaging cardboard of this embodiment, the bending portion 3 further includes an inner crease 9, and the inner crease 9 is symmetrically arranged on two connecting plates 8 on both sides of the outer crease 4, and the inner crease 9 is located on the side of the connecting plate 8 close to the outer crease 4.

[0041] The setting of the inner crease 9 realizes the bending of the connecting plate 8. In cooperation with the rotatable setting of the connecting plate 8, when the folding unit cardboard 2 is bent, both ends of the connecting plate 8 rotate with the fixed plate 7 respectively, and at the same time, it bends itself through the inner crease 9. The protruding ends of the bent connecting plate 8 support the first layer portion 5, so as to avoid damage to the internal structure of the cardboard while realizing the bending, and can also support the surface of the cardboard, improving the strength of the bending portion 3 and the cardboard.

[0042] Embodiment 2:

[0043] When the first layer portion 5 and the second layer portion 6 of the unit cardboard 2 are relatively thick due to functional requirements, it is difficult to fold the unit cardboard 2 by setting only one outer crease 4. Therefore, the present application also proposes another embodiment. In this embodiment, other structures are set in the same way as in Embodiment 1, except that:

[0044] As Figure 5 and Figure 6 shown, in the folding continuous packaging cardboard of this embodiment, two outer creases 4 are provided on the outer surface of the first layer portion 5 or the second layer portion 6, and the two outer creases 4 are located on both sides of the fixed plate 7 on the same first layer portion 5 or the second layer portion 6.

[0045] Through the above settings, two outer creases 4 are respectively provided on the bending parts of each cardboard body 1 and are arranged on the inner side of the cardboard body 1 according to the bending direction. Through the above settings, when folding along the outer crease 4, the three adjacent support cavities inside the cardboard body 1 are deformed for bending. When the first layer portion 5 and the second layer portion 6 are relatively thick, bending is carried out through three groups of adjacent connecting plate 8 structures, and the deformation amount of the connecting plate 8 is larger, so there is enough space to realize the bending, avoiding tearing the surface of the cardboard body 1.

[0046] Preferably, inner creases 9 are respectively provided at the tops of two connecting plates 8 opposite to the two outer creases 4, and inner creases 9 are also respectively provided at the bottoms of the two connecting plates 8 between the two outer creases 4. Therefore, a total of six inner creases 9 are provided on the four connecting plates 8. Support cavities are formed between the connecting plates 8 and the fixed plate 7 and the first layer portion 5 or the second layer portion 6, and the outer crease 4 is arranged corresponding to the support cavity. The bent bending portion 3 after the above structure is as Figure 6 shown. When bending, the connecting plate 8 protrudes outwards through the inner crease 9 at the top to support the first layer portion 5, and protrudes inwards through the inner crease 9 at the bottom to support the second layer portion 6, so as to ensure that the internal structure is not damaged during bending while enhancing the strength of the cardboard.

[0047] In the present utility model, unless otherwise clearly specified and defined, terms such as "installation", "setting", "connection", "fixation", "rotation" and the like shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be a direct connection or an indirect connection through an intermediate medium, and it may be the communication inside two components or the interaction relationship between two components. Unless otherwise clearly defined, for those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0048] Although the embodiments of the present utility model have been shown and described in detail, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A folding continuous packaging paperboard, characterized in that: The paperboard body comprises a plurality of unit paperboards, which are connected in sequence, a bending portion is arranged between two adjacent unit paperboards, the bending portion comprises an outer fold, and the unit paperboards are bent and stacked through the outer fold to form the paperboard body.

2. The folding continuous packaging paperboard according to claim 1, characterized in that: The unit paperboard comprises a first layer part and a second layer part, a core board is arranged between the first layer part and the second layer part, and the core board supports the first layer part and the second layer part to improve the strength of the unit paperboard.

3. The folding continuous packaging paperboard according to claim 2, characterized in that: The core plate includes a fixing plate and a connecting plate. The fixing plate is fixedly connected to the inner side surface of the first layer portion or the second layer portion. The connecting plates are respectively arranged on both sides of the fixing plate.

4. The folding continuous packaging paperboard according to claim 3, characterized in that: The fixing plates on the first layer and the fixing plates on the second layer are arranged alternately, and two fixing plates adjacent to each other are connected by a connecting plate.

5. The folding continuous packaging paperboard according to claim 3, characterized in that: The connecting plate is symmetrical with respect to the fixing plate and is arranged at an angle with the fixing plate. The angle between the connecting plate and the fixing plate is adjustable.

6. The folding continuous packaging paperboard according to claim 3, characterized in that: The outer fold is arranged on the outer surface of the first layer portion or the second layer portion, and the outer fold is located between two adjacent fixing plates on the same first layer portion or the second layer portion.

7. The folding continuous packaging paperboard according to claim 6, characterized in that: The bending portion further comprises an inner fold, which is symmetrically arranged on two connecting plates on both sides of the outer fold, and the inner fold is located on a side of the connecting plate close to the outer fold.

8. The folding continuous packaging paperboard according to claim 3, characterized in that: Two outer folds are arranged on the outer surface of the first layer part or the second layer part, and the two outer folds are located on both sides of the fixed plate on the same first layer part or the second layer part.

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