Waterproof corrugated board and neatening device for corrugated board production line

Abstract

The utility model discloses a waterproof corrugated board and a neatening device for a corrugated board production line, and relates to the field of corrugated boards. The paper board comprises a paper board base board, an upper foaming board is attached to a top board of the paper board base board, and a lower foaming board is attached to the side, away from the upper foaming board, of the paper board base board. An upper reinforcing paper core is attached to the side, away from the paperboard base plate, of the upper foaming plate, and a lower reinforcing paper core is attached to the side, away from the paperboard base plate, of the lower foaming plate. Protective plates are attached to the sides, away from the paperboard base plate, of the upper reinforcing paper core and the lower reinforcing paper core. According to the waterproof corrugated board, under the action of the upper foaming board and the lower foaming board, the PVC material has certain waterproofness, water vapor is further prevented from permeating into the paperboard, and compared with a traditional corrugated board which only depends on a surface waterproof coating, the internal waterproof effect of the waterproof corrugated board is remarkably improved; due to the multi-layer structural design of the device, multiple protection is provided for the paperboard; different material layers exert respective characteristics, so that the comprehensive performances such as water resistance and compression resistance of the paperboard are comprehensively improved.

Description

Technical Field

[0001] This utility model belongs to the field of corrugated cardboard, and in particular relates to a waterproof corrugated cardboard and a straightening device for a corrugated cardboard production line. Background Technology

[0002] Corrugated cardboard, a common packaging material, is mainly composed of face paper, core paper, and liner paper bonded together with adhesives. Its corrugated structure gives it good compression resistance and cushioning properties. However, traditional corrugated cardboard has significant shortcomings in waterproofing, especially in humid environments, easily absorbing water and deforming, leading to a decrease in the strength and stability of the packaging material, thus affecting its protective function for the contents. With the rapid development of the logistics and packaging industries, the market has placed higher demands on the performance of corrugated cardboard. Particularly in the packaging of moisture-sensitive goods, such as food, pharmaceuticals, and electronic products, ordinary corrugated cardboard struggles to meet the requirements for waterproofing and moisture resistance.

[0003] While some waterproof corrugated cardboard products are available on the market, their waterproof performance mainly relies on coating the cardboard surface with a waterproof coating or using waterproof adhesives. Although these methods improve the waterproof performance of the cardboard to some extent, the internal waterproofing effect is still poor. When the external waterproof coating is scratched or peeled off, the inside of the cardboard is still very susceptible to moisture. Furthermore, the cardboard has poor strength, and after contact with moisture, the cardboard will soften, resulting in a decrease in its performance. Utility Model Content

[0004] The purpose of this invention is to provide a waterproof corrugated cardboard. Through the action of the upper and lower foaming boards, the PVC material itself has a certain degree of waterproofness, further preventing moisture from penetrating into the cardboard. Compared with traditional corrugated cardboard that relies solely on the surface waterproof coating, the internal waterproofing effect of this waterproof corrugated cardboard is significantly improved. The multi-layer structure design of this device provides multiple layers of protection for the cardboard. Different material layers play their respective roles and work synergistically to comprehensively improve the cardboard's waterproof, pressure-resistant, and other overall performance. This solves the problem that the internal waterproofing effect of existing cardboard is still poor, and the inside of the cardboard is still very susceptible to moisture when the external waterproof coating is scratched or peeled off.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model is a waterproof corrugated cardboard, including a cardboard substrate, characterized in that: an upper foam board is attached to the top plate of the cardboard substrate, and a lower foam board is attached to the side of the cardboard substrate away from the upper foam board.

[0007] The upper foaming board has an upper reinforcing paper core attached to the side away from the cardboard substrate, and the lower foaming board has a lower reinforcing paper core attached to the side away from the cardboard substrate.

[0008] Both the upper and lower reinforcing paper cores have protective plates attached to the side away from the cardboard substrate, and the surface of the protective plates is coated with a waterproof layer.

[0009] Furthermore, both the upper and lower foamed panels are made of PVC material;

[0010] The upper and lower reinforcing paper cores have staggered wave crests.

[0011] Furthermore, the waterproof layer is an adhesive film, a PET film, or a BOPP film.

[0012] A straightening device for a corrugated cardboard production line includes a base, the upper surface of which is fixed with a groove;

[0013] A first support frame is fixed to the upper surface of the base, and a second support frame is slidably connected inside the slide groove;

[0014] The first support frame and the second support frame are both fixed with positioning plates at the top, and a motor is fixed with the bottom of the positioning plates;

[0015] A first bearing is fixed to the surface of the positioning plate, and the motor output shaft is fixedly connected to the inner ring of the first bearing.

[0016] The motor output shaft is fixed with a first transmission rod, and a second transmission rod is rotatably connected to the end of the first transmission rod away from the first bearing.

[0017] The end of the second transmission rod away from the first transmission rod is rotatably connected to an adjusting rod, and a leveling plate is fixed to one side of the adjusting rod;

[0018] A limit tube is fixed to the upper surface of the positioning plate, and the adjusting rod passes through the limit tube;

[0019] A conveyor belt is fixed to one side of the base.

[0020] Furthermore, the two aligned plates have a "Y" shaped structure;

[0021] Several protective strips are fixed to the side of the leveling plate away from the adjusting rod.

[0022] Furthermore, a fixing plate is fixed to the base near the side of the second support frame;

[0023] An adjustment plate is fixed to one side of the positioning plate at the top of the second support frame.

[0024] Furthermore, a threaded tube is fixed to the surface of the fixing plate, and a threaded rod is threadedly connected inside the threaded tube;

[0025] A second bearing is fixed to one side of the adjusting plate, and a rotating rod is fixed to the inner ring of the second bearing.

[0026] The rotating rod is fixedly connected to a section of the threaded rod.

[0027] This utility model has the following beneficial effects:

[0028] 1. This utility model utilizes the upper and lower foaming boards, and the PVC material itself has a certain degree of water resistance, further preventing moisture from penetrating into the interior of the cardboard. Compared with traditional corrugated cardboard that relies solely on a surface waterproof coating, the internal waterproof effect of this waterproof corrugated cardboard is significantly improved. The multi-layer structure design of this device provides multiple layers of protection for the cardboard. Different material layers play their respective roles and work synergistically to comprehensively improve the overall performance of the cardboard, including its waterproofness and pressure resistance.

[0029] 2. This utility model utilizes the function of the aligning plates, which form a "Y" shape. This unique structural design allows the aligning plates to better align the edges of the corrugated cardboard during operation. Compared to ordinary straight plate structures, the "Y" shape structure can guide and organize the cardboard from different angles. During the cardboard conveying process, it can more effectively align the two sides of the cardboard, ensuring the neatness of the cardboard in the width direction, thereby improving the neatness quality of the cardboard.

[0030] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0031] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0032] Figure 1 This is a structural schematic diagram of a waterproof corrugated cardboard according to the present invention.

[0033] Figure 2 This is a top-view structural diagram of the present invention.

[0034] Figure 3 This utility model Figure 2 Enlarged view of a portion of point A in the middle.

[0035] Figure 4 This is a side view structural diagram of the present invention.

[0036] Figure 5 This utility model Figure 4 Enlarged view of section B in the middle.

[0037] Figure 6 This is a schematic diagram of the structure of this utility model from a downward viewing angle.

[0038] The attached diagram lists the components represented by each number as follows:

[0039] 1-Cardboard substrate, 101-Upper foam board, 102-Lower foam board, 103-Upper reinforcing paper core, 104-Lower reinforcing paper core, 105-Protective board, 106-Waterproof layer, 2-Base, 3-Slide groove, 4-First support frame, 5-Second support frame, 6-Positioning plate, 7-Motor, 8-First bearing, 9-First transmission rod, 10-Second transmission rod, 11-Adjusting rod, 12-Alignment plate, 13-Limiting tube, 14-Conveyor belt, 15-Protective strip, 16-Fixing plate, 17-Adjusting plate, 18-Threaded tube, 19-Threaded rod, 20-Second bearing, 21-Rotating rod. Detailed Implementation

[0040] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0041] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0042] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model. Specific Implementation Example 1

[0044] Please see Figure 1 This utility model is a waterproof corrugated cardboard, including a cardboard substrate 1, an upper foam board 101 attached to the top of the cardboard substrate 1, a lower foam board 102 attached to the side of the cardboard substrate 1 away from the upper foam board 101; an upper reinforcing paper core 103 attached to the side of the upper foam board 101 away from the cardboard substrate 1, and a lower reinforcing paper core 104 attached to the side of the lower foam board 102 away from the cardboard substrate 1; a protective plate 105 attached to the side of both the upper reinforcing paper core 103 and the lower reinforcing paper core 104 away from the cardboard substrate 1, and a waterproof layer 106 sprayed on the surface of the protective plate 105.

[0045] Specifically, both the upper foam board 101 and the lower foam board 102 are made of PVC material; the upper reinforcing paper core 103 and the lower reinforcing paper core 104 have staggered corrugations.

[0046] Furthermore, the waterproof layer 106 is an adhesive film, PET film, or BOPP film.

[0047] The operation process of this embodiment is as follows: A waterproof layer 106 is sprayed onto the surface of the protective board 105. The waterproof layer 106 can be selected from self-adhesive film, PET film, or BOPP film. These materials can effectively block the intrusion of external moisture. At the same time, both the upper foam board 101 and the lower foam board 102 are made of PVC material. PVC material itself has a certain degree of water resistance, further preventing moisture from penetrating into the interior of the cardboard. Compared with traditional corrugated cardboard that relies solely on a surface waterproof coating, the internal waterproof effect of this waterproof corrugated cardboard is significantly improved. The staggered arrangement of the corrugated peaks of the upper reinforcing core 103 and the lower reinforcing core 104 enhances the waterproof effect of the cardboard. The overall compressive strength of the cardboard is improved; when the cardboard is subjected to external pressure, the staggered crests can better disperse the pressure, preventing the cardboard from easily deforming due to stress, thus improving the strength and stability of the cardboard. It is also less likely to soften after being exposed to moisture, and can maintain good performance over time. From the inside out, the cardboard consists of a cardboard substrate 1, an upper foam board 101 and a lower foam board 102, an upper reinforcing paper core 103 and a lower reinforcing paper core 104, a protective board 105, and a waterproof layer 106. This multi-layer structure provides multiple layers of protection for the cardboard. Different material layers play their respective roles and work together to comprehensively improve the overall performance of the cardboard, including its waterproof and compressive strength. Specific Implementation Example 2

[0049] Please see Figure 2-6 The corrugated cardboard production line uses a leveling device, including a base 2, with a groove 3 fixed on the upper surface of the base 2; a first support frame 4 is fixed on the upper surface of the base 2, and a second support frame 5 is slidably connected inside the groove 3; positioning plates 6 are fixed at the top of both the first support frame 4 and the second support frame 5, and a motor 7 is fixed at the bottom of the positioning plate 6; a first bearing 8 is fixed on the surface of the positioning plate 6, and the output shaft of the motor 7 is fixedly connected to the inner ring of the first bearing 8; a first transmission rod 9 is fixed on the output shaft of the motor 7, and a second transmission rod 10 is rotatably connected to the end of the first transmission rod 9 away from the first bearing 8; an adjusting rod 11 is rotatably connected to the end of the second transmission rod 10 away from the first transmission rod 9, and a leveling plate 12 is fixed on one side of the adjusting rod 11; a limit tube 13 is fixed on the upper surface of the positioning plate 6, and the adjusting rod 11 passes through the limit tube 13; and a conveyor belt 14 is fixed on one side of the base 2.

[0050] Specifically, the two leveling plates 12 are in a "Y" shape; several protective strips 15 are fixed on the side of the leveling plate 12 away from the adjusting rod 11.

[0051] Furthermore, a fixing plate 16 is fixed to the side of the base 2 near the second support frame 5; an adjusting plate 17 is fixed to one side of the positioning plate 6 at the top of the second support frame 5; a threaded tube 18 is fixed to the surface of the fixing plate 16, and a threaded rod 19 is threadedly connected inside the threaded tube 18; a second bearing 20 is fixed to one side of the adjusting plate 17, and a rotating rod 21 is fixed to the inner ring of the second bearing 20; the rotating rod 21 is fixedly connected to a section of the threaded rod 19.

[0052] The operation process of this embodiment is as follows: Check whether the components of the device are firmly connected and whether the motor 7, conveyor belt 14, etc. can operate normally. If it is necessary to adjust the distance between the two aligning plates 12, rotate the rotating rod 21; the rotating rod 21 drives the threaded rod 19 to rotate in the threaded tube 18, so that the adjusting plate 17 and the second support frame 5 move on the slide 3, changing the distance between the two aligning plates 12 to adapt to corrugated cardboard of different widths. Start the motor 7. The output shaft of the motor 7 drives the first transmission rod 9 to rotate. The first transmission rod 9 drives the second transmission rod 10 to move. The second transmission rod 10 pushes the adjusting rod 11 to move in the limiting tube 13, thereby adjusting the angle of the aligning plate 12 to match the cardboard conveying direction and alignment requirements. Turn on the conveyor belt 14 and place the corrugated cardboard on the conveyor belt 14, so that it moves with the conveyor belt 14 towards the aligning plate 12. During the conveying process, the Y-shaped aligning plate 12 aligns with the edges of the cardboard, and the protective strip 15 prevents the aligning plate 12 from scratching the cardboard surface during alignment. The motor 7 works continuously, driving the aligning plate 12 to constantly adjust its position and angle, ensuring that the cardboard remains flat and uniform during conveying, avoiding problems such as wrinkles and warping. The aligned corrugated cardboard continues to be conveyed by the conveyor belt 14 to the subsequent processing stage to complete the production process. In this device, the two aligning plates 12 are in a Y-shape. This unique structural design allows the aligning plates to better align the edges of the corrugated cardboard during operation. Compared with the ordinary straight plate structure, the Y-shaped structure can guide and tidy up the cardboard from different angles. During the cardboard conveying process, it can more effectively align the two sides of the cardboard, ensuring the neatness of the cardboard in the width direction, thereby improving the alignment quality of the cardboard.

[0053] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0054] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A waterproof corrugated cardboard, comprising a cardboard substrate (1), characterized in that: The top plate of the cardboard substrate (1) is attached to an upper foam board (101), and the side of the cardboard substrate (1) away from the upper foam board (101) is attached to a lower foam board (102). The upper foaming board (101) has an upper reinforcing paper core (103) attached to the side away from the cardboard substrate (1), and the lower foaming board (102) has a lower reinforcing paper core (104) attached to the side away from the cardboard substrate (1). The upper reinforcing paper core (103) and the lower reinforcing paper core (104) are both attached with protective plates (105) on the side away from the cardboard substrate (1), and the surface of the protective plates (105) is coated with a waterproof layer (106).

2. The waterproof corrugated cardboard according to claim 1, characterized in that, Both the upper foam board (101) and the lower foam board (102) are made of PVC material; The upper reinforcing paper core (103) and the lower reinforcing paper core (104) are arranged with staggered peaks.

3. The waterproof corrugated cardboard according to claim 1, characterized in that, The waterproof layer (106) is an adhesive film, PET film or BOPP film.

4. A straightening device for a corrugated cardboard production line, characterized in that, Includes a base (2), and a groove (3) is fixed on the upper surface of the base (2); The base (2) has a first support frame (4) fixed on its upper surface, and the slide groove (3) has a second support frame (5) slidably connected inside. The first support frame (4) and the second support frame (5) are both fixed with positioning plates (6), and the bottom of the positioning plates (6) is fixed with motors (7). The positioning plate (6) is fixed with a first bearing (8), and the output shaft of the motor (7) is fixedly connected to the inner ring of the first bearing (8). The output shaft of the motor (7) is fixed with a first transmission rod (9), and a second transmission rod (10) is rotatably connected to the end of the first transmission rod (9) away from the first bearing (8). The second transmission rod (10) is rotatably connected to an adjusting rod (11) at the end away from the first transmission rod (9), and a leveling plate (12) is fixed on one side of the adjusting rod (11). The positioning plate (6) has a limiting tube (13) fixed on its upper surface, and the adjusting rod (11) passes through the limiting tube (13). A conveyor belt (14) is fixed to one side of the base (2).

5. The straightening device for a corrugated cardboard production line according to claim 4, characterized in that, The two straight plates (12) have a "Y" shaped structure; Several protective strips (15) are fixed on the side of the leveling plate (12) away from the adjusting rod (11).

6. The straightening device for a corrugated cardboard production line according to claim 4, characterized in that, The base (2) is fixed with a fixing plate (16) on the side near the second support frame (5); An adjustment plate (17) is fixed on one side of the positioning plate (6) at the top of the second support frame (5).

7. The straightening device for a corrugated cardboard production line according to claim 6, characterized in that, A threaded tube (18) is fixed to the surface of the fixing plate (16), and a threaded rod (19) is threadedly connected inside the threaded tube (18). A second bearing (20) is fixed on one side of the adjusting plate (17), and a rotating rod (21) is fixed on the inner ring of the second bearing (20). The rotating rod (21) is fixedly connected to the threaded rod (19) at one end.

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