Corrugated paper production line and production process

Abstract

This invention provides a corrugated paper production line and process, relating to the field of corrugated paper production technology. It includes a support frame, with several support frames arranged sequentially. A floating pressure plate assembly is mounted on the support frame, and a heating plate is positioned on the support frame below the floating pressure plate assembly. The heating plate and the floating pressure plate assembly form a pressure space. The floating pressure plate assembly and the heating plate are respectively used to contact two conveyor belts. Corrugated cardboard is located between the two conveyor belts. The floating pressure plate assembly compresses the height of the pressure space to shape the corrugated cardboard. The heating plate heats the cardboard to accelerate the curing of the glue. A lifting pallet assembly moves between the two support frames to lift the corrugated cardboard, separating the conveyor belts from the heating plate. A tensioning frame is movable on the support frame, used to adjust the tension of the conveyor belts. The corrugated paper production line provided by this invention, utilizing the floating pressure plate assembly and the lifting pallet assembly, achieves stable corrugated paper production.

Description

Technical Field

[0001] This invention belongs to the field of corrugated paper production technology, specifically, it relates to a corrugated paper production line and production process. Background Technology

[0002] Corrugated cardboard is widely used in packaging, transportation and other fields due to its lightweight, high strength, good cushioning performance and environmental recyclability. The forming efficiency and product quality of the corrugated cardboard production line directly determine the production benefits and application effects of corrugated cardboard. Currently, existing corrugated paper production lines suffer from several technical challenges in the corrugated board forming process: First, the heating mechanism exhibits poor heating uniformity and slow glue solidification, which not only prolongs the production cycle but also easily leads to interlayer delamination of the corrugated board, affecting the product's bonding strength. Second, when the heating medium is introduced into the heating plate, the flow of the medium easily generates turbulence, causing the heating plate to vibrate. This vibration not only affects the bonding accuracy between the heating plate and the conveyor belt, causing misalignment and uneven heating of the corrugated board, but also exacerbates the wear of components such as the heating plate and support frame, reducing the equipment's service life and making stable heating impossible. Third, the conveyor belt tension adjustment mechanism is simplistic, making it difficult to achieve uniform and precise adjustment of the conveyor belt tension. The conveyor belt is prone to slipping due to excessive looseness or breaking due to excessive tightness, further affecting the conveying and forming quality of the corrugated board. Fourth, it is difficult to quickly separate the conveyor belt from the heating plate after the corrugated board is formed, which exacerbates the high-temperature aging of the conveyor belt and restricts the production efficiency and product quality stability of the corrugated board. Summary of the Invention

[0003] The purpose of this invention is to provide a corrugated paper production line and production process, which solves the technical problem of low yield rate in corrugated paper production due to temperature fluctuations in related technologies.

[0004] A corrugated paper production line, comprising: A support frame, wherein several support frames are arranged sequentially, and each support frame is provided with a floating pressure plate assembly; A heating plate is disposed on the support frame and located below the floating pressure plate assembly. A pressure plate space is formed between the heating plate and the floating pressure plate assembly. The floating pressure plate assembly and the heating plate are respectively used to abut against two conveyor belts. The corrugated cardboard is located between the two conveyor belts. The floating pressure plate assembly is used to compress the height of the pressure plate space to form the corrugated cardboard. The heating plate is used to heat the cardboard to accelerate the curing of the glue on the corrugated cardboard. A lifting pallet assembly, which is raised and lowered between the two support frames, is used to lift the corrugated cardboard to separate the conveyor belt from the heating plate; The tensioning frame is movably mounted on the support frame and is used to adjust the tension of the conveyor belt.

[0005] According to an exemplary embodiment of this disclosure, the lifting pallet assembly includes: The fastener is mounted on the support frame; A lifting plate is mounted on the fixed member by means of a sliding plate. The lifting plate is connected to a driving member through a linkage assembly, and the driving member drives the lifting plate to move up and down.

[0006] According to an exemplary embodiment of this disclosure, the upper end of the lifting plate has an arc-shaped guide portion, the arc-shaped guide portion is perpendicular to the corrugated cardboard conveying direction, and both sides of the arc-shaped guide portion have concave anti-scratch portions, the anti-scratch portions being curved toward the center of the arc-shaped guide portion.

[0007] According to an exemplary embodiment of this disclosure, the arc-shaped guide portion has a cavity and a through hole. The cavity is connected to the outside through the through hole. The through hole is located at the top of the arc-shaped guide portion. The edge of the through hole has a rounded corner. A ball is rotatably disposed in the cavity. The ball extends out of the cavity through the through hole. The extended portion of the ball is higher than the top of the arc-shaped guide portion.

[0008] According to an exemplary embodiment of this disclosure, the heating plate has a constant temperature cavity and heating tubes. There are two constant temperature cavities, which are located at both ends of the heating plate. There are several heating tubes, which are straight tubes. The two constant temperature cavities are connected through the several heating tubes. The constant temperature cavity has a medium communication hole, which is used to introduce heating medium into one of the constant temperature cavities and to allow the medium to flow out of the other constant temperature cavity.

[0009] According to an exemplary embodiment of this disclosure, an air bladder is provided inside the constant temperature chamber. The air bladder is fixedly disposed on the side of the constant temperature chamber away from the heating tube, and is used to maintain the medium pressure inside the constant temperature chamber.

[0010] According to an exemplary embodiment of this disclosure, a tension adjustment assembly is also included. Several tension adjustment assemblies are spaced apart on the support frame along the conveying direction of the conveyor belt. The tension adjustment assemblies are used to adjust the tension of the conveyor belt.

[0011] According to an exemplary embodiment of this disclosure, the floating pressure plate assembly has a pressure plate, both ends of which have arc-shaped clamping ends for preventing damage to the conveyor belt.

[0012] A corrugated paper production process, using the aforementioned corrugated paper production line, includes the following steps: S1: Apply glue to the paper blank; S2: Several layers of the blank paper are pressed by the upper and lower conveyor belts respectively, and the paper is moved. The floating pressure plate assembly moves down to press the conveyor belt onto the heating plate to accelerate the drying of the corrugated paper. S3: The conveyor belt passes around the tension adjustment assembly, and the floating pressure plate assembly presses the conveyor belt. When the temperature of the conveyor belt is higher than the normal temperature, the floating pressure plate assembly reduces the pressure on the conveyor belt, and the tension adjustment assembly increases the tension to move the conveyor belt away from the heating plate, thereby cooling the conveyor belt.

[0013] According to an exemplary embodiment of this disclosure, in step S2, the pressure of the floating pressure plate increases sequentially along the conveying direction of the conveyor belt.

[0014] The present invention provides a corrugated paper production line and production process. Through the coordinated operation of the lifting pallet assembly and the floating pressure plate assembly, compared with the prior art, it improves the reduction of defective products caused by overheating during the corrugated board forming process, and can meet the purpose of rapid drying and convenient transportation. It also improves the forming regularity and bonding strength of corrugated paperboard, shortens the production cycle, extends the service life of various equipment components, expands the applicability of the production line, and reduces product loss and equipment maintenance costs during the production process. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the corrugated paper production line provided in an embodiment of the present invention; Figure 2 This is an embodiment of the present invention. Figure 1 Schematic diagram of the intermediate tensioner frame; Figure 3 This is an embodiment of the present invention. Figure 1 Schematic diagram of the floating pressure plate assembly; Figure 4 This is an embodiment of the present invention. Figure 1 Schematic diagram of the lifting pallet assembly; Figure 5 For the present invention Figure 4 Another structural diagram of the lifting pallet assembly; Figure 6 For the present invention Figure 5 Schematic diagram of the structure of AA; Figure 7 For the present invention Figure 6 A schematic diagram of the structure of B in the middle; Figure 8 This is an embodiment of the present invention. Figure 1 A schematic diagram of the structure of the heating plate.

[0017] In the diagram: Support frame-1, Floating pressure plate assembly-2, Pressure plate-201, Arc-shaped pressing end-202, Heating plate-3, Pressure plate space-301, Constant temperature chamber-301, Heating tube-302, Medium connecting hole-303, Airbag-304, Lifting pallet assembly-4, Fixing component-401, Lifting plate-402, Arc-shaped guide part-403, Anti-scratch part-404, Cavity-405, Through hole-406, Rounded corner part-407, Ball bearing-408, Tensioning frame-5. Detailed Implementation

[0018] The specific embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit this disclosure. For ease of understanding, the English abbreviations and related technical terms involved in the embodiments of this disclosure will be explained and described below.

[0019] It should be understood that the described embodiments are merely some, not all, of the embodiments disclosed herein. All other embodiments obtained by those skilled in the art based on the embodiments of this disclosure without inventive effort are within the scope of protection of this disclosure.

[0020] The terminology used in the embodiments of this disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of this disclosure. The singular forms “a,” “the,” and “the” as used in the embodiments of this disclosure and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise.

[0021] It should be understood that the term "and / or" used in this article is merely a way of describing the logical relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0022] Depending on the context, the word "if" as used here can be interpreted as "when" or "when" or "in response to determination" or "in response to detection." Similarly, depending on the context, the phrase "if determination" or "if detection (of the stated condition or event)" can be interpreted as "when determination" or "in response to determination" or "when detection (of the stated condition or event)" or "in response to detection (of the stated condition or event)."

[0023] It should be understood that the terms "first," "second," etc., used in this disclosure are for distinguishing purposes only and should not be construed as indicating or implying relative importance or order.

[0024] In the description of this disclosure, the terms “center,” “upper,” “lower,” “front,” “back,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this disclosure and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and should not be construed as a limitation of this disclosure.

[0025] In the description of this disclosure, it should be noted that, unless otherwise expressly specified and limited, the terms "installation", "connection" and "joining" should be interpreted broadly, for example, they can be fixed connections, detachable connections, mating connections or integral connections; those skilled in the art can understand the specific meaning of the above terms in this disclosure according to the specific circumstances.

[0026] like Figures 1-8 As shown, this invention illustrates a corrugated paper production line and production process according to an embodiment of the present invention. It includes several support frames 1 arranged sequentially, with evenly spaced support frames 1 forming a stable support base. This effectively supports the weight of various components of the production line, preventing shaking or shifting after installation, ensuring the stability of the production line operation, and extending the overall service life of the equipment. Each support frame 1 is fixedly equipped with a floating pressure plate assembly 2, which can flexibly adjust its height to adapt to the production needs of corrugated paperboard of different thicknesses, improving the versatility of the production line. A heating plate 3 is also fixedly installed on the support frame 1, located below the floating pressure plate assembly 2. A pressure plate space 301 is formed between the heating plate 3 and the floating pressure plate assembly 2. The floating pressure plate assembly 2 and the heating plate 3 are... The corrugated cardboard is positioned between two conveyor belts, with the floating pressure plate assembly 2 actively compressing the height of the pressure plate space 301. This allows for precise control of the spacing between the pressure plate spaces 301, ensuring that the corrugated cardboard receives uniform and stable pressure. This results in neatly formed corrugated cardboard, preventing issues such as corrugation collapse and non-standard forming, thus improving the forming quality of the corrugated cardboard. It is also adaptable to the production of corrugated cardboard of different thicknesses, expanding the applicability of the production line. The heating plate 3 generates stable heat and transfers it to the conveyor belts, which in turn acts on the corrugated cardboard. This rapidly accelerates the curing speed of the adhesive on the corrugated cardboard, shortening the forming cycle and improving production efficiency. Simultaneously, it prevents the adhesive from failing to cure in time, thus avoiding interlayer separation and ensuring the bonding strength of the corrugated cardboard.

[0027] A lifting pallet assembly 4 is installed between the two support frames 1. The lifting pallet assembly 4 can be raised and lowered flexibly. When the corrugated cardboard overheats during the conveying process and needs temperature adjustment, or when the forming is completed, the lifting pallet assembly 4 rises to lift the corrugated cardboard, separating the conveyor belt from the heating plate 3. On the one hand, this avoids the conveyor belt from aging and damage caused by long-term contact with the high-temperature heating plate 3, thus extending the service life of the conveyor belt. On the other hand, it facilitates the subsequent conveying and collection of the corrugated cardboard, reduces indentations and scorch marks on the surface of the corrugated cardboard caused by excessive contact with the heating plate 3, and improves the appearance quality of the product. A tensioning frame 5 is movable on the support frame 1. The tensioning frame 5 can move flexibly along the support frame 1 to adjust the tension of the conveyor belt, ensuring that the conveyor belt is always in a suitable tension state. This avoids slippage caused by an overly loose conveyor belt, which could lead to the corrugated cardboard being conveyed off-center or misaligned during forming. It also avoids excessive wear and tear caused by an overly tight conveyor belt, which could increase the risk of breakage. At the same time, it ensures that the pressure of the conveyor belt on the corrugated cardboard is uniform, further improving the forming quality of the corrugated cardboard. It should be noted that both the floating pressure plate assembly 2 and the conveyor belt are commonly used equipment components in existing technologies, and will not be described in detail here.

[0028] By coordinating the lifting pallet assembly 4 and the floating pressure plate assembly 2, compared with the existing technology, the defective products caused by overheating during the corrugated board forming process are reduced. It can also meet the purpose of rapid drying and convenient transportation, improve the forming regularity and bonding strength of corrugated cardboard, shorten the production cycle, extend the service life of various equipment components, expand the applicability of the production line, and reduce product loss and equipment maintenance costs during the production process.

[0029] refer to Figure 4 and Figure 5 In one possible implementation, the lifting pallet assembly 4 includes a fixing member 401 and a lifting plate 402. The fixing member 401 is fixedly installed on the support frame 1, providing a stable installation base for the lifting plate 402, ensuring that the lifting plate 402 does not deviate or shake during the lifting process, and guaranteeing the stability and accuracy of the lifting action. The lifting plate 402 is lifted and set on the fixing member 401 by a sliding plate. The sliding plate can reduce the frictional resistance between the lifting plate 402 and the fixing member 401, making the lifting action of the lifting plate 402 smoother and more flexible, reducing drive energy consumption, reducing wear between components, and extending the service life of the lifting pallet assembly 4. The lifting plate 402 is connected to the drive member through a connecting rod assembly. The drive member provides stable power for the lifting of the lifting plate 402, and can accurately control the lifting height and lifting speed of the lifting plate 402, adapting to the lifting needs of corrugated cardboard of different thicknesses, avoiding the problem of corrugated cardboard damage due to excessive lifting speed and insufficient lifting height preventing the conveyor belt from separating from the heating plate 3.

[0030] The structure of the lifting pallet assembly 4 can improve the stability, accuracy and smoothness of the lifting action, accurately adapt to different production needs, effectively protect corrugated cardboard and conveyor belt, reduce component wear, extend the service life of the lifting pallet assembly 4, and at the same time reduce drive energy consumption and improve the operational stability of the production line.

[0031] refer to Figure 6 and Figure 7 In one possible implementation, the upper end of the lifting plate 402 is provided with an arc-shaped guide part 403. The edge of the arc-shaped guide part 403 is set perpendicular to the conveying direction of the corrugated cardboard. The arc structure can play a good guiding role for the corrugated cardboard, avoiding jamming or deviation when the corrugated cardboard is lifted by the lifting plate 402, ensuring that the corrugated cardboard can be conveyed smoothly and stably. At the same time, the arc structure can increase the contact area between the lifting plate 402 and the corrugated cardboard, reduce the pressure on the surface of the corrugated cardboard, avoid indentations and damage to the surface of the corrugated cardboard, and protect the appearance quality and structural integrity of the corrugated cardboard. Anti-scratch parts 404 are provided on both sides of the arc-shaped guide part 403. The anti-scratch parts 404 are bent towards the center of the arc-shaped guide part 403. The bent anti-scratch parts 404 can avoid sharp edges on the edge of the arc-shaped guide part 403, preventing sharp edges from scratching the surface of the corrugated cardboard and the conveyor belt, further protecting the corrugated cardboard and the conveyor belt. At the same time, it can also prevent operators from being scratched by sharp edges when maintaining the equipment, improving the safety of equipment use. The specific effect of this embodiment is that it further optimizes the structure of the lifting plate 402. It achieves smooth guidance and conveying of corrugated cardboard, effectively avoiding problems such as jamming, deviation, indentation and scratches, protecting the conveyor belt from damage, improving the appearance quality and structural integrity of the product, while also improving the safety of equipment use and reducing production losses and equipment maintenance costs.

[0032] refer to Figure 6 and Figure 7In one possible implementation, the arc-shaped guide portion 403 has a cavity 405 inside, and a through hole 406 on the arc-shaped guide portion 403. The cavity 405 communicates with the outside through the through hole 406, which is located at the top of the arc-shaped guide portion 403. The cavity 405 and the through hole 406 provide installation space for the ball bearing 408, ensuring that the ball bearing 408 can be stably installed and rotate flexibly. The edge of the through hole 406 is provided with a rounded corner 407, which can prevent sharp edges from appearing on the edge of the through hole 406, prevent sharp edges from scratching the ball bearing 408, extend the service life of the ball bearing 408, and at the same time prevent the conveyor belt from contacting the through hole. The edge of 406 is scratched upon contact; a ball bearing 408 is rotatably installed inside the cavity 405. The ball bearing 408 extends out of the cavity 405 through the through hole 406, and the extended part of the ball bearing 408 is higher than the top of the arc-shaped guide 403. The ball bearing 408 can convert the sliding friction between the conveyor belt and the arc-shaped guide 403 into rolling friction, which greatly reduces the frictional resistance, making the conveying of corrugated cardboard smoother and more stable, avoiding jamming and wear of the conveyor belt, and reducing the wear of the arc-shaped guide 403, extending the service life of the lifting plate 402. In addition, the rolling of the ball bearing 408 can play an auxiliary role in the conveyor belt, further improving the conveying efficiency.

[0033] The structure of the arc-shaped guide part 403 reduces the frictional resistance during the conveying process of corrugated cardboard, ensuring that the corrugated cardboard is conveyed smoothly and stably under the action of the conveyor belt. It effectively avoids wear on the corrugated cardboard and the arc-shaped guide part 403, extends the service life of the components, and at the same time helps to improve the conveying efficiency, further reduce production losses, and ensure the stability of product quality.

[0034] refer to Figure 8In one possible implementation, the heating plate 3 is internally equipped with a constant temperature chamber 301 and heating tubes 302. There are two constant temperature chambers 301, located at opposite ends of the heating plate 3. There are several heating tubes 302, all of which are straight tubes. The two constant temperature chambers 301 are connected by several heating tubes 302. The two constant temperature chambers 301 allow the heating medium to be evenly distributed inside the heating plate 3, preventing localized overheating or underheating and ensuring uniform surface temperature of the heating plate 3. This, in turn, ensures uniform heating of the corrugated cardboard, preventing uneven glue curing speed and weak interlayer bonding caused by uneven heating. It also prevents localized scorching and damage to the corrugated cardboard. The straight-tube heating tubes 302 facilitate processing, installation, and maintenance, reducing production and maintenance costs. Furthermore, the straight tube structure allows for more efficient heating... The smoother flow of the heating medium reduces resistance and turbulence during flow, thereby minimizing vibration of the heating plate 3 caused by the medium flow. This prevents vibration from affecting the bonding accuracy between the heating plate 3 and the conveyor belt, preventing misalignment and uneven heating of the corrugated cardboard during forming. Simultaneously, it reduces wear on components such as the heating plate 3 and support frame 1, extending equipment lifespan and ensuring the stability of the heating process. The constant temperature chamber 301 is equipped with a medium communication hole 303 for connecting the heating medium, facilitating its injection, discharge, and circulation. This ensures the heating medium can continuously and stably provide heat to the heating plate 3, further guaranteeing stable heating and preventing heating interruptions and temperature fluctuations due to insufficient heating medium or poor circulation, which could affect production efficiency and product quality. The specific effects of this embodiment are as follows: The heating plate 3 has a uniform surface temperature, which improves heat transfer efficiency and heating stability. It effectively reduces the vibration of the heating plate 3 caused by the flow of the medium, avoiding the adverse effects of vibration on product forming and equipment components. This ensures that the corrugated cardboard is heated evenly and the glue solidifies quickly and evenly, guaranteeing the bonding strength of the corrugated cardboard and product quality. At the same time, it reduces the processing, installation and maintenance costs of the heating plate 3, reduces component wear, ensures the continuity of the production process, and improves production efficiency and equipment operation stability.

[0035] refer to Figure 8In one possible implementation, an airbag 304 is provided inside the constant temperature chamber 301. The airbag 304 is fixedly installed on the side of the constant temperature chamber 301 away from the heating tube 302. The airbag 304 has good elasticity and extensibility, and can automatically adapt to the volume change of the heating medium inside the constant temperature chamber 301. When the heating medium expands due to heat, the airbag 304 is compressed, providing expansion space for the heating medium and preventing excessive pressure inside the constant temperature chamber 301 from damaging the heating plate 3, heating tube 302, or medium communication hole 303, thus improving the safety of the equipment. When the heating medium cools and contracts, the airbag 304 expands, filling the space created by the contraction of the heating medium, preventing negative pressure inside the constant temperature chamber 301, preventing outside air from entering the constant temperature chamber 301 and affecting the purity and heating effect of the heating medium. At the same time, it can maintain the stable medium pressure inside the constant temperature chamber 301, ensuring that the heating medium can flow evenly and smoothly in the heating tube 302, thereby ensuring uniform surface temperature of the heating plate 3 and improving the heating effect and bonding quality of the corrugated cardboard. The specific effect of this embodiment is: further... The structure of the constant temperature chamber 301 is optimized, and the medium pressure inside the constant temperature chamber 301 is automatically adjusted by the air bag 304 to avoid damage to the equipment caused by excessively high or low pressure, prevent outside air from entering and affecting the heating effect, ensure smooth circulation of the heating medium and stable temperature of the heating plate 3, further improve the heating effect and product quality of corrugated cardboard, extend the service life of the heating plate 3 and related components, and improve the safety and stability of the equipment.

[0036] refer to Figure 1 and Figure 2 In one possible implementation, several tension adjustment components are also included. These components are spaced apart on the support frame 1. This spacing allows for more uniform tension adjustment of the conveyor belt, preventing insufficient or excessive tension in certain areas and ensuring the overall conveyor belt maintains a stable tension. The tension adjustment components can flexibly adjust the conveyor belt tension to suit the production needs of corrugated cardboard of different thicknesses and materials. They can also adjust the tension in real time based on the wear and elongation of the conveyor belt, preventing slippage and conveying deviation due to excessive looseness, ensuring neat corrugated cardboard forming, and preventing excessive tightness leading to accelerated wear and breakage, thus extending the conveyor belt's service life. Furthermore, the tension adjustment components, used in conjunction with the tensioning frame 5, enable precise and comprehensive adjustment of the conveyor belt tension, further improving the stability of the conveyor belt operation, ensuring the conveying and forming quality of the corrugated cardboard, and reducing the maintenance and replacement costs of the conveyor belt. The specific effects of this embodiment are as follows: By adding tension adjustment components, the tension of the conveyor belt can be adjusted evenly and precisely to meet different production needs, ensure stable operation of the conveyor belt, avoid slippage, deviation and excessive wear, extend the service life of the conveyor belt, further improve the forming quality and production stability of corrugated cardboard, and reduce production and maintenance costs.

[0037] refer to Figure 3 In one possible implementation, the floating pressure plate assembly 2 has a pressure plate 201, with arc-shaped clamping ends 202 at both ends of the pressure plate 201. The arc-shaped clamping ends 202 adopt an arc-shaped structure, which can avoid sharp edges at both ends of the pressure plate 201. When the floating pressure plate assembly 2 clamps the conveyor belt, the contact between the arc-shaped clamping ends 202 and the conveyor belt is smoother, which can effectively disperse the clamping force, avoid excessive local stress on the conveyor belt leading to damage and aging, and extend the service life of the conveyor belt. At the same time, the arc-shaped structure can avoid scratching the surface of the conveyor belt, ensuring the conveying stability of the conveyor belt, thereby ensuring the conveying and forming quality of corrugated cardboard. In addition, the arc-shaped clamping ends 202 are easy to process and maintain, reducing the production and maintenance costs of the components.

[0038] The arc-shaped clamping end 202 protects the conveyor belt, preventing damage, scratches, and excessive local wear, extending the service life of the conveyor belt, ensuring stable operation of the conveyor belt, and thus guaranteeing the conveying and forming quality of corrugated cardboard, while reducing the production and maintenance costs of components.

[0039] This embodiment provides a corrugated paper production process, specifically including the following steps: S1: Apply glue to the blank paper to ensure uniform glue application and that the glue thickness meets production requirements. Uniform glue application ensures strong interlayer adhesion of the corrugated paperboard, preventing delamination and separation. Appropriate glue thickness also avoids glue waste, reducing production costs, and prevents excessive glue leading to prolonged curing time and reduced production efficiency, or insufficient glue resulting in weak adhesion and substandard product quality. S2: Several layers of blank paper are pressed together by upper and lower conveyor belts. The rotation of the conveyor belts drives the paper to move smoothly. The floating pressure plate assembly 2 presses the conveyor belts onto the heating plate 3, placing the blank paper within the pressure space 301 formed by the floating pressure plate assembly 2 and the heating plate 3. The pressing action of the floating pressure plate assembly 2 achieves the forming of the corrugated paperboard, ensuring the regularity and uniform thickness of the corrugated paperboard. The heating effect of heating plate 3 can quickly accelerate the solidification speed of glue on corrugated cardboard, shorten the forming cycle, and improve production efficiency. At the same time, heating can enhance the adhesive performance of glue, ensure the interlayer bonding strength of corrugated cardboard, and avoid delamination. S3: The conveyor belt bypasses the tension adjustment component, and the floating pressure plate component 2 continuously presses the conveyor belt. When the temperature of the conveyor belt is higher than the normal temperature during operation, the floating pressure plate component 2 reduces the pressure on the conveyor belt, while the tension adjustment component increases the tension, so that the conveyor belt moves away from heating plate 3, reducing the contact area between the conveyor belt and heating plate 3, reducing the degree of heating of the conveyor belt, realizing the rapid cooling of the conveyor belt, avoiding aging and damage caused by the conveyor belt being in a high-temperature environment for a long time, extending the service life of the conveyor belt, and preventing the high-temperature deformation of the conveyor belt from causing the corrugated cardboard to shift or misalign in forming, ensuring the continuity of production and product quality.

[0040] By designing reasonable process steps and coordinating with the corrugated paper production line, we can achieve efficient and stable production of corrugated cardboard, ensure product quality, regular forming, and strong bonding. At the same time, we can effectively protect the components of the production line, extend the service life of equipment, shorten the production cycle, improve production efficiency, reduce production costs and product losses, adapt to the production needs of different specifications of corrugated cardboard, and enhance the flexibility and practicality of the production process.

[0041] In step S2, the pressure of the floating pressure plate assembly 201 increases sequentially along the conveyor belt direction. This pressure setting allows the corrugated cardboard to gradually form during conveying, avoiding collapse or damage caused by excessive pressure at once, thus ensuring the structural integrity and forming regularity of the corrugated cardboard. Simultaneously, the gradually increasing pressure ensures even distribution of adhesive between the layers, expelling air from between layers and further enhancing interlayer bonding strength, preventing air bubbles and delamination. Furthermore, the gradually increasing pressure along the conveying direction, combined with the heating effect of the heating plate 3, allows the adhesive to solidify evenly during the gradual pressing process, ensuring consistent bonding quality across all parts of the corrugated cardboard, improving product quality stability, and reducing wear on the floating pressure plate assembly 2 and the conveyor belt, extending component lifespan and reducing maintenance costs. The specific effects of this embodiment are: further optimizing the production process; by rationally setting the pressure changes of the floating pressure plate assembly 2, the corrugated cardboard is gradually formed, ensuring product structural integrity and forming regularity, enhancing interlayer bonding strength, ensuring stable product quality, extending the service life of equipment components, and reducing maintenance costs and product loss.

[0042] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A corrugated paper production line, characterized in that, include: Support frame (1), wherein several support frames (1) are arranged in sequence, and each support frame (1) is provided with a floating pressure plate assembly (2). A heating plate (3) is disposed on the support frame (1) and located below the floating pressure plate assembly (2). A pressure plate space (301) is formed between the heating plate (3) and the floating pressure plate assembly (2). The floating pressure plate assembly (2) and the heating plate (3) are respectively used to abut against two conveyor belts. The corrugated cardboard is located between the two conveyor belts. The floating pressure plate assembly (2) is used to compress the height of the pressure plate space (301) so that the corrugated cardboard is formed. The heating plate (3) is used to heat so as to accelerate the curing of glue on the corrugated cardboard. The lifting pallet assembly (4) is raised and lowered between the two support frames (1) to lift the corrugated cardboard so that the conveyor belt is separated from the heating plate (3); Tensioner (5), which is movably mounted on the support frame (1), is used to adjust the tension of the conveyor belt.

2. The corrugated paper production line according to claim 1, characterized in that, The lifting pallet assembly (4) includes: A fastener (401) is provided on the support frame (1); The lifting plate (402) is mounted on the fixing member (401) by means of a sliding plate. The lifting plate (402) is connected to the driving member through a linkage assembly. The driving member drives the lifting plate (402) to rise and fall.

3. A corrugated paper production line according to claim 2, characterized in that, The upper end of the lifting plate (402) has an arc-shaped guide (403), which is perpendicular to the corrugated cardboard conveying direction. Both sides of the arc-shaped guide (403) have concave anti-scratch parts (404), which are bent toward the center of the arc-shaped guide (403).

4. A corrugated paper production line according to claim 3, characterized in that, The arc-shaped guide portion (403) has a cavity (405) and a through hole (406). The cavity (405) is connected to the outside through the through hole (406). The through hole (406) is located at the top of the arc-shaped guide portion (403). The edge of the through hole (406) has a rounded corner (407). A ball bearing (408) is rotatably disposed in the cavity (405). The ball bearing (408) extends out of the cavity (405) through the through hole (406). The extended part of the ball bearing (408) is higher than the top of the arc-shaped guide portion (403).

5. A corrugated paper production line according to claim 1, characterized in that, The heating plate (3) has a constant temperature cavity (301) and heating tubes (302). There are two constant temperature cavities (301), which are located at both ends of the heating plate (3). There are several heating tubes (302), which are straight tubes. The two constant temperature cavities (301) are connected through several heating tubes (302). The constant temperature cavity (301) has a medium communication hole (303). The medium communication hole (303) is used to introduce heating medium into one constant temperature cavity (301) and to allow the medium to flow out of the other constant temperature cavity (301).

6. A corrugated paper production line according to claim 5, characterized in that, An airbag (304) is provided inside the constant temperature chamber (301). The airbag (304) is fixedly disposed on the side of the constant temperature chamber (301) away from the heating tube (302) to maintain the medium pressure inside the constant temperature chamber (301).

7. A corrugated paper production line according to claim 1, characterized in that, It also includes a tension adjustment component, which consists of several components and is spaced apart on the support frame (1) along the conveying direction of the conveyor belt. The tension adjustment component is used to adjust the tension of the conveyor belt.

8. A corrugated paper production line according to claim 1, characterized in that, The floating pressure plate assembly (2) has a pressure plate (201), and both ends of the pressure plate (201) have arc-shaped pressing ends (202), which are used to prevent the conveyor belt from breaking.

9. A corrugated paper production process, using the corrugated paper production line according to any one of claims 1 to 8, characterized in that, Includes the following steps: S1: Apply glue to the paper blank; S2: Several layers of the blank paper are pressed by the upper and lower conveyor belts respectively, and the paper is moved. The floating pressure plate (201) assembly (2) moves down to press the conveyor belt onto the heating plate (3) to accelerate the drying of corrugated paper. S3: The conveyor belt passes around the tension adjustment component, and the floating pressure plate component (2) presses the conveyor belt. When the temperature of the conveyor belt is higher than the normal temperature, the floating pressure plate component (2) reduces the pressure on the conveyor belt, and the tension adjustment component increases the tension so that the conveyor belt moves away from the heating plate (3) and the conveyor belt cools down.

10. A corrugated paper production process according to claim 9, characterized in that, In S2, the pressure of the floating pressure plate (201) increases sequentially along the conveying direction of the conveyor belt.

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