Multi-layer corrugated board and drying device for corrugated board production

Abstract

The utility model discloses a multi-layer corrugated board and a drying device for corrugated board production, and relates to the technical field of corrugated paper production equipment. The multi-layer corrugated board comprises two layers of surface paper, two layers of wave core paper, one layer of interlayer paper, two layers of sponge layers and two layers of adhesive surface paper, a group of buffer sponge strips are fixedly arranged on the side surface of one side, far away from the interlayer paper, of each sponge layer, and the buffer sponge strips are sleeved in wave gaps of the wave core paper; and the buffer sponge strips can rebound to restore the wave core paper, so that the buffer effect is kept. The drying device for corrugated board production comprises a shell part, an exhaust part and a rotating part, the shell part comprises a base table and a sleeve shell, the sleeve shell is fixedly installed at the upper end of the base table, the exhaust part is installed on the outer side of the sleeve shell, and the rotating part is installed at the upper end of the base table; corrugated paper is rotated through the rotating component, hot air passes through wave gaps in wave core paper of the corrugated paper through the exhaust component, and the corrugated paper is dried.

Description

Technical Field

[0001] This utility model belongs to the technical field of corrugated paper production equipment, and in particular relates to a multi-layer corrugated cardboard and a drying device for corrugated cardboard production. Background Technology

[0002] Corrugated cardboard typically consists of two layers of face paper and a corrugated core paper, offering advantages such as light weight and rapid heat dissipation. However, when corrugated cardboard is compressed, the corrugated core paper deforms, reducing its cushioning and packaging effectiveness. Furthermore, the corrugated cavities within the cardboard make it highly absorbent, easily absorbing moisture from the ground or air, leading to dampness. Due to its multi-layered structure, absorbed moisture cannot evaporate quickly, and prolonged dampness can cause mold growth, affecting the quality of the cardboard. After production, the corrugated cardboard remains damp due to the adhesive bonding between its multiple layers, necessitating drying. However, directly baking the corrugated cardboard at high temperatures can embrittle it, making it prone to breakage.

[0003] To address these issues, we provide a multi-layer corrugated cardboard and a drying apparatus for corrugated cardboard production. Utility Model Content

[0004] The purpose of this utility model is to provide a multi-layer corrugated cardboard and a drying device for corrugated cardboard production. Adhesive-coated paper is pasted onto the outer sides of the facing paper on both sides of the corrugated cardboard to prevent moisture absorption on both sides. Sponge layers are pasted onto both sides of the interlayer paper, and a set of cushioning sponge strips is fixed on both sides of the sponge layers. These cushioning sponge strips fit into the corrugated core paper's corrugated gaps. When the corrugated cardboard is compressed, the cushioning sponge strips rebound and restore the corrugated core paper to its original shape, thus maintaining the cushioning effect. By stacking the corrugated cardboard inside the outer shell of the drying device and rotating it within the outer shell, the exhaust fan passes hot air through the corrugated core paper's corrugated gaps, accelerating the evaporation of moisture within the corrugated cardboard structure and drying the corrugated cardboard.

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

[0006] This utility model is a multi-layer corrugated cardboard, including two face sheets, two corrugated core sheets, and one interlayer sheet, as well as two sponge layers and two adhesive-coated sheets. The two sponge layers are respectively pasted on both sides of the interlayer sheet, the corrugated core sheet is pasted on the side of the sponge layer away from the interlayer sheet, the face sheets are pasted on the side of the corrugated core sheet away from the sponge layer, and the adhesive-coated sheets are pasted on the side of the face sheets away from the corrugated core sheet. A set of cushioning sponge strips is fixed on the side of the sponge layer away from the interlayer sheet, and the cushioning sponge strips are sleeved in the corrugations of the corrugated core sheet.

[0007] This utility model also provides a drying device for corrugated cardboard production, used for drying multi-layer corrugated cardboard; it includes an outer shell component, an exhaust component, a rotating component, and multi-layer corrugated cardboard. The outer shell component includes a base platform and a sleeve, with the sleeve fixedly installed on the upper part of the base platform. The exhaust component is installed on the outside of the sleeve, and the rotating component is installed on the upper part of the base platform.

[0008] The present invention is further configured such that the exhaust component includes two sets of exhaust fans, the four sides of the housing have openings, and the two sets of exhaust fans are respectively installed on the outside of the adjacent two side openings of the housing.

[0009] The present invention is further configured such that an electric heating wire frame is fixedly installed on one side of the air inlet end of one of the exhaust fans.

[0010] The present invention is further configured such that the rotating component includes a turntable, a set of transmission rods and a top plate, a transfer shaft is fixedly provided at the lower end of the turntable, a transfer cylinder is fixedly provided at the upper end of the base platform, the transfer shaft is rotatably installed in the transfer cylinder, the lower end of the set of transmission rods is fixedly connected to the edge of the upper end of the turntable, the upper end of the set of transmission rods is fixedly connected to the edge of the lower end of the top plate, and a motor is installed at the upper end of the housing, and the output end of the motor passes through the housing and is fixedly connected to the upper end of the top plate.

[0011] The present invention is further configured such that a receiving component is also installed on the base platform. The receiving component includes a ball seat, a set of balls and a ball cover. The ball seat is installed on the upper end of the base platform and sleeved on the outside of the adapter cylinder. The ball cover covers the upper end of the ball seat and sleeved on the outside of the adapter cylinder. A set of hemispherical ball grooves are circumferentially arrayed on the upper end surface of the ball seat. A set of ball through holes are opened on the surface of the ball cover plate. A set of balls are rotatably installed in each ball groove. The upper end of the ball passes through the ball through hole and fits against the lower plate surface of the turntable.

[0012] This utility model has the following beneficial effects:

[0013] 1. This utility model prevents the corrugated paper from getting damp by attaching adhesive paper to the outer side of the face paper on both sides of the corrugated paper, and attaching sponge layers to both sides of the interlayer paper, and fixing a set of cushioning sponge strips on both sides of the sponge layers. The cushioning sponge strips are fitted into the corrugated gaps of the corrugated core paper. When the corrugated paper is squeezed, the cushioning sponge strips will rebound and restore the corrugated core paper, thereby maintaining the cushioning effect of the corrugated paper.

[0014] 2. This utility model involves stacking corrugated paper inside the outer shell of a drying device and rotating the corrugated paper inside the outer shell by a rotating component. This allows the exhaust component to pass hot air through the corrugated gaps in the corrugated core paper of the corrugated paper, thereby accelerating the evaporation of moisture within the corrugated paper structure and drying the corrugated paper.

[0015] 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

[0016] 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.

[0017] Figure 1 This is a schematic diagram of the structure of a multi-layer corrugated cardboard and a drying device for corrugated cardboard production.

[0018] Figure 2 This is a schematic diagram of the structure of multi-layer corrugated cardboard.

[0019] Figure 3 This is an exploded view of the exhaust component and the outer casing.

[0020] Figure 4 This is an exploded view of the rotating component and the outer casing component.

[0021] Figure 5 This is an exploded view of the supporting components and the base platform.

[0022] The attached diagram lists the components represented by each number as follows:

[0023] 1-Face paper, 2-Corrugated core paper, 3-Layer paper, 4-Sponge layer, 401-Buffer sponge strip, 5-Adhesive-coated paper, 6-Outer shell component, 601-Base platform, 601a-Adapter cylinder, 602-Shell, 603-Receiving component, 603a-Ball bearing seat, 603a-1-Ball bearing groove, 603b-Ball bearing, 603c-Ball bearing cover, 603c-1-Ball bearing through hole, 7-Exhaust component, 701-Exhaust fan, 702-Heating wire frame, 8-Rotating component, 801-Turntable, 801a-Adapter shaft, 802-Transmission rod, 803-Top plate. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0025] Example 1

[0026] Please see Figures 1 to 2This utility model is a multi-layer corrugated cardboard, including two layers of face paper 1, two layers of corrugated core paper 2, and one layer of interlayer paper 3, as well as two layers of sponge layer 4 and two layers of adhesive paper 5. By attaching adhesive paper 5 to the outside of the face paper 1, the two sides of the corrugated paper are prevented from getting damp. The sponge layer 4 is attached to both sides of the interlayer paper 3, and a set of cushioning sponge strips 401 are fixed on both sides of the sponge layer 4. The cushioning sponge strips 401 are fitted into the corrugated gaps of the corrugated core paper 2. When the corrugated paper is squeezed, the cushioning sponge strips 401 will rebound and restore the corrugated core paper 2, thereby maintaining the cushioning effect of the corrugated paper.

[0027] Specifically, two sponge layers 4 are respectively pasted on both sides of the interlayer paper 3, the corrugated core paper 2 is pasted on the side of the sponge layer 4 away from the interlayer paper 3, the face paper 1 is pasted on the side of the corrugated core paper 2 away from the sponge layer 4, the adhesive face paper 5 is pasted on the side of the face paper away from the corrugated core paper 2, and a set of buffer sponge strips 401 are fixed on the side of the sponge layer 4 away from the interlayer paper 3. The buffer sponge strips 401 are sleeved in the corrugated gaps of the corrugated core paper 2.

[0028] The operation process in this embodiment is as follows:

[0029] When the corrugated paper comes into contact with the damp ground on both sides, the adhesive paper 5 separates the moisture from the face paper 1, thereby preventing the face paper 1 from absorbing the moisture and causing the corrugated paper to become damp; when the corrugated paper is squeezed and the corrugated core paper 2 is deformed, when the squeezing force is removed, the corrugated core paper 2 recovers under the rebound of the cushioning sponge strip 401 of the sponge layer 4, thereby ensuring that the corrugated paper still has a cushioning effect.

[0030] Example 2

[0031] Please see Figures 1 to 5 This utility model also provides a drying device for the production of multi-layer corrugated cardboard in Embodiment 1, used for drying multi-layer corrugated cardboard in Embodiment 1; it includes an outer shell component 6, an exhaust component 7, a rotating component 8, and a multi-layer corrugated cardboard in Embodiment 1. The outer shell component 6 includes a base platform 601 and a housing 602. By stacking the corrugated paper from Embodiment 1 that has just been produced and placing it in the outer shell component of the drying device, since the corrugated paper has adhesive paper 5 pasted on both sides, the layers of corrugated paper will not stick together due to moisture. The rotating component 8 makes the corrugated paper rotate inside the outer shell component 6, and the exhaust component 7 makes hot air pass through the corrugated core paper 2 of the corrugated paper, thereby accelerating the evaporation of moisture in the corrugated paper structure and drying the corrugated paper.

[0032] Specifically, the housing 602 is fixedly installed on the upper end of the base 601, the exhaust component 7 is installed on the outside of the housing 602, and the rotating component 8 is installed on the upper end of the base 601.

[0033] Furthermore, the exhaust component 7 includes two sets of exhaust fans 701, and the housing 602 has openings on all four sides. The two sets of exhaust fans 701 are respectively installed on the outside of the openings on adjacent sides of the housing 602, so that the airflow can flow smoothly between the corrugated core paper 2 of the corrugated paper.

[0034] Furthermore, an electric heating wire frame 702 is fixedly installed on one side of the air inlet end of one of the exhaust fans 701, so that one exhaust fan 701 blows out hot air, thereby accelerating the evaporation of moisture in the corrugated paper structure.

[0035] Furthermore, the rotating component 8 includes a turntable 801, a set of transmission rods 802, and a top plate 803. The lower end of the turntable 801 is fixedly provided with a connecting shaft 801a, and the upper end of the base 601 is fixedly provided with a connecting cylinder 601a. ​​The connecting shaft 801a is rotatably installed inside the connecting cylinder 601a. ​​The lower end of the set of transmission rods 802 is fixedly connected to the edge of the upper plate surface of the turntable 801, and the upper end of the set of transmission rods 802 is fixedly connected to the edge of the lower plate surface of the top plate 803. A motor is installed on the upper end of the housing 602, and the output end of the motor passes through the housing 602 and is fixedly connected to the upper plate surface of the top plate 803. The motor is connected to the top plate 803 through a coupling to drive its rotation, thereby causing the corrugated paper on the turntable 801 to rotate and receive drying from two airflows.

[0036] Furthermore, a receiving assembly 603 is also installed on the base platform 601. The receiving assembly 603 includes a ball seat 603a, a set of balls 603b, and a ball cover 603c. The ball seat 603a is installed on the upper end of the base platform 601 and sleeved on the outside of the adapter cylinder 601a. ​​The ball cover 603c covers the upper end of the ball seat 603a and sleeved on the outside of the adapter cylinder 601a. ​​A set of hemispherical ball grooves 603a-1 are circumferentially arrayed on the upper end surface of the ball seat 603a. A set of ball bearing through holes 603c-1 is provided on the surface of the ball bearing cover 603c. A set of balls 603b are rotatably installed in each ball bearing groove 603a-1. The upper end of the ball bearing 603b passes through the ball bearing through hole 603c-1 and fits against the lower plate surface of the turntable 801. When the turntable 801 rotates, the weight is borne by the ball bearing 603b and the ball bearing seat 603a. Furthermore, the lower end of the turntable 801 and the ball bearing 603b have rolling friction, which reduces the friction force when the turntable 801 rotates.

[0037] The operation process in this embodiment is as follows:

[0038] The corrugated paper stacked in Example 1 is placed above the turntable 801. The rotating component 8 rotates, and at the same time, two exhaust fans 701 blow airflow into the corrugated paper through the gaps in the corrugated core paper. One exhaust fan 701 blows hot airflow into the corrugated paper structure under the heating of the heating wire frame 702 to accelerate the evaporation of moisture in the corrugated paper structure. The other exhaust fan 701 blows in cold air to blow out the evaporated moisture. The cold air is used to balance the internal temperature, prevent local overheating that could cause deformation of the adhesive paper, prevent excessively high temperatures that could cause deformation of the sponge layer 4 and the adhesive paper 5, and prevent the corrugated paper from becoming brittle.

[0039] 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.

Claims

1. A multi-layer corrugated cardboard, comprising two layers of face paper (1), two layers of corrugated core paper (2), and one layer of interlayer paper (3), characterized in that: It also includes two sponge layers (4) and two adhesive-coated sheets (5). The two sponge layers (4) are respectively pasted on the two sides of the interlayer paper (3). The corrugated core paper (2) is pasted on the side of the sponge layer (4) away from the interlayer paper (3). The face paper (1) is pasted on the side of the corrugated core paper (2) away from the sponge layer (4). The adhesive-coated sheets (5) are pasted on the side of the face paper away from the corrugated core paper (2). A set of buffer sponge strips (401) is fixed on the side of the sponge layer (4) away from the interlayer paper (3). The buffer sponge strips (401) are sleeved in the corrugated gaps of the corrugated core paper (2).

2. A drying device for corrugated cardboard production, characterized in that: For drying multi-layer corrugated cardboard as described in claim 1; comprising an outer shell component (6), an exhaust component (7), and a rotating component (8), wherein the outer shell component (6) comprises a base platform (601) and a sleeve (602), the sleeve (602) being fixedly installed on the upper end of the base platform (601), the exhaust component (7) being installed on the outside of the outer shell component (6), and the rotating component (8) being installed on the upper end of the base platform (601), wherein the temperature of the hot air blown out by the exhaust component (7) is lower than the heat shrinkage temperature of the sponge layer (4) in the multi-layer corrugated cardboard of claim 1.

3. A drying device for corrugated cardboard production according to claim 2, characterized in that: The exhaust component (7) includes two sets of exhaust fans (701), the housing (602) has openings on all four sides, and the two sets of exhaust fans (701) are respectively installed on the outside of the openings on adjacent sides of the housing (602).

4. A drying apparatus for corrugated cardboard production according to claim 3, characterized in that: One of the exhaust fans (701) has a heating wire frame (702) fixedly installed on one side of the air inlet end.

5. A drying apparatus for corrugated cardboard production according to claim 4, characterized in that: The rotating component (8) includes a turntable (801), a set of transmission rods (802), and a top plate (803). The lower end of the turntable (801) is fixedly provided with a connecting shaft (801a), and the upper end of the base platform (601) is fixedly provided with a connecting cylinder (601a). The connecting shaft (801a) is rotatably installed inside the connecting cylinder (601a). The lower end of the set of transmission rods (802) is fixedly connected to the edge of the upper plate surface of the turntable (801), and the upper end of the set of transmission rods (802) is fixedly connected to the edge of the lower plate surface of the top plate (803). A motor is installed on the upper end of the housing (602), and the output end of the motor passes through the housing (602) and is fixedly connected to the upper plate surface of the top plate (803).

6. A drying apparatus for corrugated cardboard production according to claim 5, characterized in that: A receiving assembly (603) is also installed on the base platform (601). The receiving assembly (603) includes a ball bearing seat (603a), a set of balls (603b), and a ball bearing cover (603c). The ball bearing seat (603a) is installed on the upper end of the base platform (601) and sleeved on the outside of the adapter cylinder (601a). The ball bearing cover (603c) covers the upper end of the ball bearing seat (603a) and sleeved on the adapter cylinder (601a). On the outer side, a set of hemispherical ball grooves (603a-1) are arranged in a circumferential array on the upper end face of the ball seat (603a), and a set of ball through holes (603c-1) are opened on the surface of the ball cover (603c). A set of balls (603b) are rotatably installed in each ball groove (603a-1), and the upper end of the ball (603b) passes through the ball through hole (603c-1) and fits against the lower plate surface of the turntable (801).

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