Waterproof high-strength corrugated carton processing device

Abstract

The invention discloses a waterproof high-strength corrugated carton processing device, and relates to the technical field of tobacco processing equipment, the waterproof high-strength corrugated carton processing device comprises guide rail brackets, guide bars I, adjusting rods I, adjusting rings, guide boxes, adjusting rods II, bases, compression rollers and other assemblies which are arranged in a bilateral symmetry manner, and efficient shaping bonding and waterproof treatment of corrugated parts and top and bottom plates are achieved; the adjusting ring is made of an electrostrictive material, so that the corrugated density can be accurately regulated and controlled; a heating rod or a cooling water pipe is integrated in the adjusting rod, and the bonding process is optimized; the inclined guide box is matched with the boss, so that the accurate axial movement of the adjusting rod is realized; according to the corrugated carton waterproof treatment device, the local strength, the bonding firmness and the waterproof performance of a corrugated carton are improved, meanwhile, the material utilization rate is optimized, and the production efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of packaging material processing equipment, and specifically to a corrugated cardboard box processing device with waterproof and high strength. Background Art

[0002] Due to advantages such as environmental friendliness, light weight, and low cost, corrugated cardboard boxes have become one of the most widely used packaging materials globally. With the rapid development of the e-commerce and logistics industries, higher requirements have been put forward for the strength, waterproof performance, and structural stability of corrugated cardboard boxes. However, traditional corrugated cardboard boxes still have significant deficiencies in aspects such as load-bearing capacity, moisture-proof and waterproof performance, and local strength distribution. In particular, they are prone to deformation and damage in humid environments or during long-distance transportation, affecting packaging safety.

[0003] The specification of Chinese invention patent CN115339154B discloses a high-strength corrugated cardboard box processing device, including a bottom plate. A support plate is fixedly connected to the upper end of the bottom plate. A binding mechanism is provided on the upper surface of the support plate. The binding mechanism is used to fold corrugated cardboard of any size into a box body and bind the folded box body at the same time. A blanking mechanism is provided on the surface of the support plate. The blanking mechanism is used to automatically move the cardboard box out of the binding mechanism after the binding mechanism binds the corrugated cardboard box. An upper feeding mechanism is provided at the upper end position of the support plate. The upper feeding mechanism is used to automatically move the corrugated cardboard to the folding position inside the binding mechanism. The device is easy to operate, can automatically bind corrugated cardboard boxes of different sizes, can effectively save manpower, and improve the quality and efficiency of corrugated cardboard box binding.

[0004] The specification of Chinese invention patent CN118238464B discloses a corrugated cardboard flattening device for processing high-strength corrugated cardboard boxes, including: two frames, the two frames are symmetrically arranged at intervals. There are two covers, and the two covers are symmetrically arranged at the top and bottom of the two frames. The two frames and the two covers form a main structure. The processing area is on the central plane of the two frames. There are two support devices, and the two support devices are symmetrically arranged on the inner walls of the frames, and the two support devices are located in the processing area. The first end of the support platform is detachably installed on the side wall of the frame, and the positioning device is detachably installed on the second end of the support platform. The present invention can support two shaft rollers when flattening corrugated cardboard, ensuring that while flattening the corrugated paper, it avoids excessive extrusion damage to the corrugated core. By rotating the angle of the support column, the support seat can be adapted to support different corrugated cores.

[0005] The above design improves the production efficiency and basic strength of corrugated cardboard boxes through methods such as automated binding and controlling the extrusion pressure, but there are still certain limitations. For example, it is impossible to precisely control the local strength of corrugated cardboard boxes, waterproof treatment cannot be carried out synchronously during the production process, the corrugated structure is prone to deformation during processing and the integrity and consistency of the shape cannot be guaranteed. At the same time, the existing technology lacks the ability to precisely control the corrugation density, and it is impossible to strengthen key load-bearing parts such as corners according to product requirements, resulting in low material utilization efficiency. It can neither meet the high-strength requirements nor cause waste of resources. In addition, the temperature control during the bonding process in traditional processes is inaccurate, and the bonding quality is unstable, affecting the overall performance and service life of the product. Summary of the Invention

[0006] The purpose of the present invention is to overcome the deficiencies of the prior art and propose a processing device for waterproof and high-strength corrugated cardboard boxes to solve the above-mentioned existing problems.

[0007] The purpose of the present invention is achieved through the following technical solutions: A processing device for waterproof and high-strength corrugated cardboard boxes includes guide rail brackets symmetrically arranged on the left and right. A first guide bar is slidably connected to the outer ends of the guide rail brackets. A synchronous belt is fixedly connected to the outer end of the first guide bar. A plurality of pressure rollers are rotatably connected between the two guide rail brackets. A plurality of first adjusting rods are slidably connected to the first guide bar. At the corresponding positions of the first guide bar away from the pressure rollers and the first adjusting rods, adjusting rings corresponding to the first adjusting rods one by one are fixedly connected. The adjusting ring is composed of three adjusting blocks, and the adjusting blocks are made of electrostrictive materials. A guide box for adjusting the axial position of the first adjusting rod is fixedly connected to the end of the first guide bar away from the pressure rollers. The axial direction of the first adjusting rod is parallel to the axial direction of the pressure roller. The guide box is inclined, and the included angle between the guide box and the axis of the first adjusting rod is between 30° and 60°. The first adjusting rod passes through the guide box, and a second adjusting rod is fixedly connected to the penetrated part. A boss is provided on the part of the first adjusting rod located inside the guide box. The first adjusting rod is of a hollow structure, and a heating rod or a cooling water pipe is fixedly connected to the hollow part. The outer end of the pressure roller is connected to an external waterproof coating device.

[0008] A second guide bar is provided at the end of the guide box away from the first guide bar. The second adjusting rod passes through the second guide bar and is slidably connected to the second guide bar. A guide rail bracket is also slidably connected inside the second guide bar. A synchronous belt is also fixedly connected to the outer end of the second guide bar.

[0009] Both the first guide bar and the second guide bar are made of flexible materials. A base is fixedly connected to the bottom end of the guide box. A motor is fixedly connected to the end of the base away from the pressure rollers. The power shaft of the motor penetrates the base, and a gear is fixedly connected to the penetrated part. The outer end of the gear is meshed with the synchronous belt. A gear is also meshed with the outer end of the second guide bar, and this gear is also fixedly connected to the motor.

[0010] A synchronous rod for synchronously rotating the two gears is fixedly connected between the two gears meshed with the two synchronous belts.

[0011] The heating rod or the cooling water pipe both penetrate through the second adjusting rod, and the penetrated part is connected to an external heating control system or a cooling system.

[0012] A support rod is fixedly connected to the first guide bar. One end of the support rod away from the first guide bar penetrates through the guide box and the first guide bar that is slidably connected to the second guide bar, and is bent downward to be fixedly connected to the base.

[0013] The corrugated parts of the corrugated paper to be processed sequentially and alternately pass through between multiple first adjusting rods near one end of the base, and a top plate and a bottom plate are respectively arranged in contact with the top end and the bottom end of the corrugated part.

[0014] A plurality of pressure rollers are also rotatably connected between the two bases. The pressure rollers rotatably connected to the first guide bar abut against the top end of the top plate, the pressure rollers rotatably connected to the base abut against the bottom end of the bottom plate, and the pressure rollers rotatably connected to the first guide bar and the base squeeze the top plate and the bottom plate to bond the top plate and the bottom plate to the corrugated part.

[0015] The boss on the first adjusting rod cooperates with the inner wall of the guide box, so that when the first adjusting rod moves following the first guide bar, it can axially move along the first adjusting rod through the cooperation with the guide box. The distance between the tops of the two guide boxes is greater than the distance between their bottoms.

[0016] The beneficial effects of the present invention are as follows: 1. The present invention realizes the precise controllability of the structural strength of the corrugated cardboard box. The adjusting ring is composed of adjusting blocks made of electrostrictive materials, which can precisely control the distance between adjacent first adjusting rods, so as to adjust the density and distribution of the corrugated parts. This design of strengthening on demand enables the corrugated density to be increased in the stress concentration areas such as the corners of the cardboard box to improve the local strength, while the standard density is maintained in the ordinary areas to optimize the material usage. The local strengthening makes the overall load-bearing capacity of the corrugated cardboard box increase under the same material consumption, and enhances the compressive performance of the product during transportation and stacking.

[0017] 2. The present invention integrates the waterproof treatment into the production process. Through the waterproof coating equipment connected to the outer end of the pressure roller, the top plate and the bottom plate are directly waterproofed during the production process. This integrated waterproof process not only simplifies the production process and avoids the secondary processing of the traditional post-treatment method, but also makes the waterproof layer more firmly and evenly combined with the cardboard, greatly extending the time for the corrugated cardboard box to maintain its structural integrity in a humid environment, and expanding the application scenarios and usage conditions of the corrugated cardboard box.

[0018] 3. The present invention is equipped with a heating rod or a cooling water pipe passing through the adjusting rod, which is connected to an external heating control system or a cooling system, realizing precise control of the temperature during the bonding process. This design can provide the most suitable temperature environment according to the type of adhesive used: for hot melt adhesives, the cooling water pipe can accelerate its solidification; for thermosetting adhesives, the heating rod can promote its activation and curing. Temperature control not only shortens the curing time of the adhesive but also improves the bonding firmness, making the combination between the corrugated part and the top and bottom plates more compact and durable.

[0019] 4. During the bonding process, multiple adjusting rods provide continuous support to the corrugated part, preventing the corrugation from collapsing or deforming when subjected to extrusion pressure. This internal support mechanism enables the corrugated structure in the final product to maintain its designed shape, improving the consistency of the peak height. Maintaining the structural integrity ensures the buffering performance and compressive strength of the corrugated cardboard box when bearing pressure, reducing the damage rate of the product during use and extending its service life.

[0020] 5. The present invention integrates multiple processes such as corrugation forming, bonding and curing, and waterproof coating into one, realizing continuous and automated production. The left - right symmetric structural design and the application of synchronous rods ensure the synchronous coordination of the entire transmission system, avoiding uneven rotation problems that may occur during the production process.

[0021] 6. By precisely controlling the corrugation density distribution, the present invention can optimize the use of materials on the premise of ensuring product performance. Different corrugation densities are adopted for areas with different strength requirements, avoiding waste caused by comprehensively increasing the material usage, saving raw materials, reducing production costs, and reducing the environmental burden, meeting the environmental protection and sustainable development requirements of the modern packaging industry.

[0022] 7. Precise temperature control not only improves the bonding quality but also optimizes the energy usage efficiency. Compared with traditional large - area heating or cooling methods, this design only adjusts the temperature at key bonding points, significantly reducing energy consumption. At the same time, by optimizing material use and improving product durability, it reduces the consumption and replacement frequency of packaging materials, indirectly reducing resource consumption and environmental burden, in line with the concepts of circular economy and green manufacturing. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is the overall structure diagram of the present invention; Figure 2 is the overall exploded view of the present invention; Figure 3 is the partial explosion Figure 1 ; Figure 4 is the partial explosion Figure 2 ; Figure 5Front view of the present invention; Figure 6 Of the present invention Figure 5 A - A cross - sectional view in the present invention; Figure 7 Of the present invention Figure 5 B - B cross - sectional view in the present invention; Figure 8 Of the present invention Figure 7 C - C cross - sectional view in the present invention; Figure 9 Of the present invention Figure 8 D - D cross - sectional view in the present invention; Figure 10 External structure diagram of the present invention.

[0024] Description of reference numerals in the figure 1. Guide rail bracket; 2. First guide bar; 3. Synchronous belt; 4. Pressure roller; 5. First adjusting rod; 6. Adjusting ring; 7. Guide box; 8. Second adjusting rod; 9. Second guide bar; 10. Base; 11. Motor; 12. Gear; 13. Synchronous rod; 14. Support rod; 15. Corrugated part; 16. Top plate; 17. Bottom plate. Specific embodiments

[0025] The technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work belong to the scope of protection of the present invention.

[0026] It should be noted that in the following solutions, the orientation concepts of "left", "right", "up", "down", "front", "back", "inside", and "outside" are all relative directions, and will not be listed one by one here.

[0027] Embodiment 1: As Figures 1 to 10 shown, this embodiment provides a corrugated cardboard processing device with waterproof and high strength, including guide rail brackets 1 symmetrically arranged left and right. The outer ends of the guide rail brackets 1 are slidably connected with a first guide bar 2, and the outer end of the first guide bar 2 is fixedly connected with a synchronous belt 3.

[0028] A plurality of pressure rollers 4 are rotatably connected between the two guide rail brackets 1, and these pressure rollers 4 are used for extrusion bonding treatment of corrugated cardboard. A plurality of first adjusting rods 5 are slidably connected to the first guide bar 2, and these first adjusting rods 5 are evenly distributed along the first guide bar 2 and are used for shaping and supporting corrugated paper.

[0029] One end of the first guide bar 2 far from the pressure roller 4 is fixedly connected to a position corresponding to the first adjusting rod 5 with an adjusting ring 6 corresponding to the first adjusting rod 5 one by one. The adjusting ring 6 is composed of three adjusting blocks, and these adjusting blocks are made of electrostrictive materials. By controlling the telescopic deformation of these adjusting blocks, the corresponding first adjusting rod 5 can be pushed to move along its radial direction, so as to realize the precise adjustment of the distance between adjacent first adjusting rods 5.

[0030] One end of the first guide bar 2 far from the pressure roller 4 is fixedly connected with a guide box 7 for adjusting the axial position of the first adjusting rod 5. The axis direction of the first adjusting rod 5 is parallel to the axis direction of the pressure roller 4. The guide box 7 is inclined, and the included angle between the guide box 7 and the axis of the first adjusting rod 5 is between 30° and 60°. This inclined setting enables the first adjusting rod 5 to move axially when following the rotation of the first guide bar 2.

[0031] The first adjusting rod 5 penetrates through the guide box 7, and the penetrated part is fixedly connected with a second adjusting rod 8. A boss is provided on the part of the first adjusting rod 5 located inside the guide box 7, and this boss cooperates with the inner wall of the guide box 7, further ensuring the stability and precision of the first adjusting rod 5 during the movement.

[0032] The first adjusting rod 5 is of a hollow structure, and a heating rod or a cooling water pipe is fixedly connected to the hollow part, which is used to heat or cool the connection points between the corrugated part and the top plate and the bottom plate to accelerate the solidification process of the adhesive. The outer end of the pressure roller 4 is connected to an external waterproof coating device, which is used to coat the waterproof coating on the surface of the corrugated cardboard.

[0033] A second guide bar 9 is provided at one end of the guide box 7 far from the first guide bar 2. The second adjusting rod 8 penetrates through the second guide bar 9 and is slidably connected to the second guide bar 9. A guide rail bracket 1 is also slidably connected inside the second guide bar 9. The outer end of the second guide bar 9 is also fixedly connected with a synchronous belt 3. This two-way transmission structure enhances the stability and synchronism of the whole device.

[0034] Both the first guide bar 2 and the second guide bar 9 are made of flexible materials to adapt to the deformation requirements during the rotation process. The bottom end of the guide box 7 is fixedly connected with a base 10. One end of the base 10 far from the pressure roller 4 is fixedly connected with a motor 11. The power shaft of the motor 11 penetrates through the base 10, and the penetrated part is fixedly connected with a gear 12. The outer end of the gear 12 is meshed with the synchronous belt 3. The outer end of the second guide bar 9 is also meshed with a gear 12, and this gear 12 is also fixedly connected with the motor 11.

[0035] Finally, a synchronous rod 13 for synchronously rotating the two gears 12 is fixedly connected between the two gears 12 meshed with the two synchronous belts 3. The synchronous rod 13 ensures the precise synchronization of the transmission systems on both sides and prevents product quality problems caused by uneven rotation during the production process.

[0036] Working process The working process of the waterproof and high-strength corrugated cardboard processing device in this embodiment is as follows: Preparatory work: Before processing the cardboard box, first pass the corrugated part 15 alternately through between multiple first adjusting rods 5, and at the same time place the top plate 16 and the bottom plate 17 in their corresponding positions.

[0037] Start the drive system: Start the motor 11. The motor drives the gear 12 to rotate through the power shaft. The gear 12 then drives the corresponding synchronous belt 3 to rotate. The synchronous belt 3 drives the corresponding first guide bar 2 and the second guide bar 9 to rotate. When the first guide bar 2 and the second guide bar 9 rotate, they drive the first adjusting rod 5 and the second adjusting rod 8 to rotate together. During this process, the synchronous rod 13 ensures the synchronous rotation of the two gears 12 on both sides, ensuring the coordination of the entire drive system.

[0038] Axial movement of the adjusting rod: During the rotation of the first adjusting rod 5 following the first guide bar 2, through the cooperation with the inclined guide box 7, axial movement is achieved. Specifically: When the first adjusting rod 5 moves to near the bottom end of the guide box 7, the two symmetrically arranged first adjusting rods 5 approach each other until the two first adjusting rods 5 abut against each other. During this process, the corrugated part 15 is extruded and formed.

[0039] When the first adjusting rod 5 moves to near the top end of the guide box 7, the two symmetrically arranged first adjusting rods 5 move in the direction away from each other, and at this time, the distance between the two symmetrically arranged first adjusting rods 5 is greater than the width of the corrugated part 15, providing space for the corrugated part 15 to enter in the next cycle.

[0040] Precise adjustment of corrugation spacing: During use, the distance between adjacent two first adjusting rods 5 can be adjusted as needed through the adjusting ring 6. The electrostrictive adjusting block on the adjusting ring 6 is controlled by an external control system to generate deformation, and the adjusting block then pushes the corresponding first adjusting rod 5 to move along its radial direction, realizing precise adjustment of the distance between the first adjusting rods 5. This adjustment ability allows adjusting the density of the corrugations of the corrugated part 15 according to product requirements, thereby regulating the local strength of the corrugated cardboard.

[0041] Temperature control: During the production process, the connection points between the corrugated part 15 and the top plate 16 and the bottom plate 17 are heated or cooled through the heating rod or the cooling water pipe in the hollow part of the first adjusting rod 5. This temperature control can accelerate the curing process of the adhesive, improving production efficiency and bonding quality.

[0042] Waterproof coating: At the same time, through the waterproof coating equipment connected to the outer end of the pressure roller 4, the waterproof coating is continuously coated on the surface of the corrugated cardboard, endowing the final product with good waterproof performance.

[0043] Finished product output: After being processed through the above processes, the corrugated cardboard that has completed bonding and waterproof treatment is output from the other end of the device and enters the subsequent processing process.

[0044] By adjusting the distance between adjacent first adjusting rods 5 through the adjusting ring 6, the corrugation density and distribution of the corrugated portion 15 can be precisely adjusted, realizing the controllability of the strength of the corrugated cardboard box. This enables the increase of corrugation density at positions such as the corners of the cardboard box that require strengthening, thereby improving the local strength and producing high-strength corrugated cardboard boxes.

[0045] The heating rod or cooling water pipe in the first adjusting rod 5 can provide the most suitable temperature environment according to the type of adhesive used, accelerating the curing process of the adhesive. For example, when using hot melt adhesive, its solidification can be accelerated through the cooling water pipe; when using certain special adhesives, the temperature can be increased through the heating rod to promote the activation of the adhesive, which improves the production efficiency and bonding quality.

[0046] The left-right symmetric structural design and the application of the synchronous rod 13 ensure the synchronous coordination of the entire transmission system, avoiding the problem of uneven rotation that may occur during the production process, and improving the product consistency and quality stability.

[0047] Through the waterproof coating function integrated in the pressure roller 4, the waterproof treatment is directly completed during the production process, reducing the subsequent processing links, improving the production efficiency, and ensuring the uniform coating and firm adhesion of the waterproof coating.

[0048] During the bonding process, multiple first adjusting rods 5 provide uniform support for the corrugated portion 15, preventing the corrugated portion from deforming when being squeezed, maintaining the integrity and regularity of the corrugated shape, and improving the appearance quality and structural strength of the finished product.

[0049] The parameters of each part of the equipment, such as the inclination angle of the guiding box, the electrostrictive degree of the adjusting ring, etc., can be adjusted according to specific production requirements, making this device applicable to the production of corrugated cardboard boxes with different specifications and strength requirements, and improving the versatility and adaptability of the equipment.

[0050] By precisely controlling the corrugation density and distribution, the material usage can be optimized on the premise of ensuring strength, reducing resource waste, lowering production costs, and improving economic and environmental benefits.

[0051] In summary, the processing device for waterproof and high-strength corrugated cardboard boxes provided in this embodiment realizes the controllability of the strength of the corrugated cardboard box, the integrated treatment of waterproof performance, and the high-efficiency and stability of the production process, meeting the requirements of the modern packaging industry for high-quality corrugated cardboard boxes.

[0052] Embodiment 2: On the basis of Embodiment 1, this embodiment further improves the temperature control system and support structure of the processing device for waterproof and high-strength corrugated cardboard boxes, specifically as follows: As Figures 1 to 10As shown, the heating rod or the cooling water pipe penetrates through the second adjusting rod 8, and the penetrated part is connected to the external heating control system or the cooling system. This penetration design enables the heating rod or the cooling water pipe to extend outside the device, facilitating connection and management with the external control system. The external heating control system or the cooling system can precisely control the temperature of the heating rod or the temperature and flow rate of the cooling water in the cooling water pipe according to the production requirements and the type of adhesive used, thereby precisely regulating the temperature environment during the corrugated cardboard box processing.

[0053] The outlet ends of the heating rod and the cooling water pipe adopt a quick plug-and-play interface design, facilitating connection and maintenance with the external system. The external heating control system includes a temperature sensor, a temperature controller, and a heat source, and can adjust the power output of the heating rod according to the real-time monitored temperature data. The external cooling system includes a cooling water pump, a temperature regulating device, and a cooling water circulation system, and can adjust the temperature and flow rate of the cooling water as needed.

[0054] A support rod 14 is fixedly connected to the first guide bar 2. One end of the support rod 14 away from the first guide bar 2 penetrates through the guide box 7 and the first guide bar 2 that is slidably connected to the second guide bar 9, and bends downward to be fixedly connected to the base 10. The support rod 14 enhances the structural rigidity and stability of the entire device, preventing vibration or deformation during high-speed operation.

[0055] The support rod 14 is made of a high-strength alloy material, having good anti-bending performance and wear resistance. The connection between the support rod 14 and the first guide bar 2 is made by welding or bolt fixation to ensure the firmness of the connection. A sealing ring is provided at the part where the support rod 14 penetrates through the guide box 7 to prevent dust and impurities from entering the inside of the guide box 7. The downward-bending part of the support rod 14 adopts an arc transition design to reduce stress concentration and improve the overall strength of the structure.

[0056] The connection between the support rod 14 and the base 10 adopts an adjustable connection structure, allowing fine adjustment of the position of the support rod 14 during installation and debugging to adapt to the production requirements of corrugated cardboard boxes of different specifications. At the same time, the surface of the support rod 14 is subjected to anti-corrosion treatment, extending the service life and reducing the maintenance frequency.

[0057] Working process The working process of the temperature control and the support structure in this embodiment is as follows: Working process of the temperature control system: During the corrugated cardboard box processing, according to the type of adhesive used and the environmental conditions, the operator sets the required working temperature through the external control panel. The external heating control system or the cooling system receives this instruction and starts temperature regulation through the heating rod or the cooling water pipe connected to the second adjusting rod 8.

[0058] When using an adhesive that requires heat curing, the heating control system is activated, and the inside of the first adjusting rod 5 and the second adjusting rod 8 is heated through heating rods. The heat is conducted through the metal walls of the first adjusting rod 5 and the second adjusting rod 8 to the contact points between the corrugated part 15 and the top plate 16 and the bottom plate 17, accelerating the activation and curing process of the adhesive. The temperature sensor monitors the working temperature in real time, and the control system automatically adjusts the heating power according to the feedback data to keep the temperature within the optimal bonding range.

[0059] When using an adhesive that requires cooling and curing, such as hot melt adhesive, the cooling system is activated, and the cooling water circulates inside the first adjusting rod 5 and the second adjusting rod 8 through the cooling water pipe, quickly taking away the heat and causing the hot melt adhesive to cool and solidify rapidly. The cooling system adjusts the flow rate and temperature of the cooling water according to the feedback of the temperature sensor to ensure that the temperature at the bonding point remains within the optimal curing temperature range.

[0060] During the production process, the temperature control system can set different temperature parameters according to the requirements of different areas. For example, special temperature treatment can be carried out on important structural parts such as the corners of the corrugated cardboard box to further improve the bonding strength and structural stability of these parts.

[0061] Working process of the support structure: The support rod 14 is an important support structure of the entire device and plays a key stabilizing role during the processing of corrugated cardboard boxes. After the device is started, the motor 11 drives the gear 12 and the synchronous belt 3 to operate, causing the first guide bar 2 and the second guide bar 9 to start circulating and moving. During this process, the support rod 14 is fixedly connected to the first guide bar 2 and, through the structure passing through the guide box 7 and the first guide bar 2 on the other side, firmly anchors the entire upper transmission system to the base 10.

[0062] Due to the presence of the support rod 14, the position offset and vibration of the first guide bar 2 and the second guide bar 9 during high-speed operation are effectively controlled. The bent design of the support rod 14 not only increases the structural stability but also optimizes the space utilization rate, making the entire device more compact.

[0063] During the production of corrugated cardboard boxes, when the first adjusting rod 5 and the second adjusting rod 8 shape and support the corrugated part 15, the support rod 14 bears part of the lateral load, reducing the burden on the first guide bar 2 and the second guide bar 9 and preventing structural deformation and wear caused by long-term operation. In addition, the presence of the support rod 14 also enhances the impact resistance of the entire device, enabling it to adapt to various production environments and operating conditions.

[0064] The heating rod or cooling water pipe penetrates through the second adjusting rod 8 and is connected to an external control system, achieving precise control of the temperature during the corrugated cardboard bonding process. This design allows for flexible adjustment of the working temperature according to the characteristics of different adhesives, significantly improving the bonding efficiency and quality. For example, when using thermosetting adhesives, an appropriate temperature can be provided by the heating rod to promote curing; when using hot melt adhesives, the cooling water pipe can quickly remove heat to accelerate the solidification process.

[0065] By precisely controlling the temperature of the bonding points, the adhesive can cure under optimal conditions, significantly enhancing the bonding strength and durability between the corrugated part 15 and the top plate 16 and bottom plate 17. This high-quality bonding enables the finally produced corrugated cardboard box to have higher structural integrity and load-bearing capacity.

[0066] The introduction of the temperature control system significantly shortens the curing time of the adhesive, accelerating the production speed. Compared with the traditional natural curing method, the use of temperature control technology can shorten the curing time, improving the overall efficiency and production capacity of the production line.

[0067] The support rod 14 enhances the mechanical stability of the entire device. By firmly connecting the first guide bar 2 to the base 10, it effectively reduces vibration and deformation during high-speed operation, ensuring the consistency of processing accuracy and product quality.

[0068] The supporting function of the support rod 14 reduces the load on the first guide bar 2, the second guide bar 9, and related transmission components, lowering the wear rate of these components, extending the service life of the entire device, and reducing the frequency and cost of maintenance and component replacement.

[0069] The combination of the temperature control system and the support structure enables the device to adapt to various types of adhesives and corrugated paper materials, enhancing the versatility and adaptability of the device. Whether in a high-humidity environment where rapid drying is required or in a high-temperature environment where cooling and curing are needed, it can be adapted by adjusting the temperature control parameters.

[0070] Precise temperature control not only improves the bonding quality but also optimizes the energy usage efficiency. Compared with traditional large-area heating or cooling methods, this design only adjusts the temperature of key bonding points, significantly reducing energy consumption, while also reducing environmental pollution and carbon emissions.

[0071] The detachable connection design of the heating rod or cooling water pipe to the external system facilitates the daily maintenance and troubleshooting of the device. When the heating rod needs to be replaced or the cooling water pipe needs to be cleaned, the relevant components can be quickly disassembled without having to disassemble the entire device, reducing the maintenance cost and downtime.

[0072] The external temperature control system is equipped with multiple safety mechanisms such as overheat protection and leakage protection to prevent equipment damage or safety accidents caused by abnormal temperatures. At the same time, the enhanced support of the support rod 14 also improves the overall stability of the equipment and reduces potential safety hazards caused by mechanical failures.

[0073] The precise control of temperature and the high stability of the structure jointly ensure the stable and controllable production process, making the corrugated cartons produced in batches highly consistent in quality and performance, meeting the strict requirements of the modern packaging industry for product standardization.

[0074] In summary, through the perfect temperature control system and support structure design in this embodiment, not only the production efficiency and product quality of corrugated cartons are improved, but also the stability and service life of the equipment are enhanced.

[0075] Embodiment 3: Based on Embodiment 1 and Embodiment 2, this embodiment further elaborates on the implementation methods of corrugated paper processing and waterproofing technology for the corrugated paper processing device of the waterproof and high-strength corrugated carton, as follows: As Figures 1 to 10 shown, the corrugated part 15 of the corrugated paper to be processed alternately passes through a plurality of adjusting rods 1 near one end of the base 10 in sequence, and the top and bottom of the corrugated part 15 are respectively provided with a top plate 16 and a bottom plate 17 in contact. This alternating insertion setting method enables the corrugated part 15 to form a regular wavy structure under the guidance of the adjusting rods 1. At the same time, the top plate 16 and the bottom plate 17 are respectively attached to the top and bottom of the corrugated part 15, preparing for subsequent bonding.

[0076] Both the top plate 16 and the bottom plate 17 are made of high-strength cardboard, and their surfaces are specially treated, which can not only be well bonded to the corrugated part 15 but also have certain waterproof performance. The thickness of the top plate 16 and the bottom plate 17 can be selected according to the strength requirements of the final product. The widths of the top plate 16 and the bottom plate 17 are slightly larger than the width of the corrugated part 15 to ensure that the corrugated part 15 is completely covered.

[0077] A plurality of pressure rollers 4 are also rotatably connected between the two bases 10. These pressure rollers 4 cooperate with the pressure rollers 4 described in Embodiment 1 and act on different parts of the corrugated cardboard together. Specifically, the pressure roller 4 rotatably connected to the guide bar 1 abuts against the top of the top plate 16, the pressure roller 4 rotatably connected to the base 10 abuts against the bottom of the bottom plate 17, and the pressure roller 4 rotatably connected to the guide bar 1 and the base 10 squeezes the top plate 16 and the bottom plate 17 to bond the top plate 16 and the bottom plate 17 to the corrugated part 15.

[0078] The pressing roller 4 is made of a material with moderate hardness and its surface is precision machined to ensure uniform force application during the extrusion process, avoiding excessive deformation or damage to the corrugated part 15. The arrangement spacing of the pressing rollers 4 corresponds to that of the first adjusting rod 5 to ensure that each corrugated peak and trough can receive appropriate extrusion force.

[0079] The boss on the first adjusting rod 5 cooperates with the inner wall of the guide box 7, enabling the first adjusting rod 5 to be strictly adjusted axially during its movement following the first guide bar 2 through its cooperation with the guide box 7. The distance between the tops of the two guide boxes 7 is greater than the distance between their bottoms. This special geometric configuration enables the first adjusting rod 5 to move along a predetermined trajectory during the movement process, achieving precise shaping and control of the corrugated part 15.

[0080] The boss is made of wear-resistant material and its outer surface is smooth-treated to reduce the frictional resistance with the inner wall of the guide box 7. The shape of the boss is optimized to ensure smooth transition during the movement of the first adjusting rod 5, avoiding jamming or vibration. The inner wall of the guide box 7 is provided with lubricating grooves to automatically inject lubricating oil into the contact area between the boss and the inner wall regularly, maintaining the smoothness of the movement.

[0081] The distance between the tops of the two guide boxes 7 is greater than the distance between their bottoms. This "V" - shaped setting makes the first adjusting rods 5 move away from each other when approaching the top of the guide box 7, providing sufficient space for the entry of the corrugated part 15; while they move closer to each other when approaching the bottom, applying appropriate extrusion force to the corrugated part 15. The inclination angle of the guide box 7 can be finely adjusted according to product requirements, generally maintained within the range of 30° - 60° to obtain the best shaping effect.

[0082] In addition, the device can be optionally equipped with an ultrasonic generator, which is installed inside the first adjusting rod 5 to assist the bonding process between the corrugated part 15, the top plate 16 and the bottom plate 17 through ultrasonic vibration, further improving the bonding firmness and production efficiency.

[0083] Working process The working process of the corrugated paper processing and waterproofing process in this embodiment is as follows: Material preparation and input: The corrugated part 15, the top plate 16 and the bottom plate 17 that have been cut into appropriate sizes are sequentially placed at the feeding end of the device. The corrugated part 15 is a flat cardboard that has not yet been formed. The top plate 16 is placed above the corrugated part 15, and the bottom plate 17 is placed below the corrugated part 15. The three - layer cardboard enters the device simultaneously.

[0084] Corrugated part shaping process: Start the motor 11, drive the first adjusting rod 5 and the second adjusting rod 8 to rotate around the first guide bar 2 and the second guide bar 9 through the transmission system. The corrugated part 15 alternately passes through between multiple first adjusting rods 5 near one end of the base 10. Since the first adjusting rod 5 realizes axial movement through cooperation with the guide box 7 during the rotation following the first guide bar 2, when the first adjusting rod 5 moves to near the bottom end of the guide box 7, the two symmetrically arranged first adjusting rods 5 approach each other until they abut against each other, applying an extrusion force to the corrugated part 15 to make it start to form a wavy corrugated structure.

[0085] When the first adjusting rod 5 moves to near the top end of the guide box 7, the two symmetrically arranged first adjusting rods 5 move in the direction away from each other. At this time, the distance between the two first adjusting rods 5 is greater than the width of the corrugated part 15, preparing for the entry of the corrugated part 15 in the next cycle. Through this cyclic movement, multiple first adjusting rods 5 successively shape and fold the corrugated part 15, gradually forming a complete corrugated structure.

[0086] Corrugation density adjustment process: During the processing, the distance between two adjacent first adjusting rods 5 can be adjusted according to the strength requirements of the product. Through the external control system, the operator can control the electrostrictive adjustment block on the adjustment ring 6 to generate deformation, and the adjustment block then pushes the corresponding first adjusting rod 5 to move along its radial direction, realizing precise adjustment of the distance between the first adjusting rods 5.

[0087] For example, for the corner of the corrugated cardboard box that needs to be strengthened, the distance between the first adjusting rods 5 in this area can be reduced, the corrugation density can be increased, and the local strength can be improved; while for the general area, the standard distance can be maintained to save materials. This intelligent adjustment mechanism enables "strengthening as needed" during the production process of corrugated cardboard boxes, producing high-strength corrugated cardboard boxes with unevenly distributed structural strength but overall optimization.

[0088] Extrusion and bonding process: When the corrugated part 15 forming the corrugated structure passes through the area of the pressure roller 4 simultaneously with the top plate 16 and the bottom plate 17, the pressure roller 4 rotationally connected to the first guide bar 2 applies pressure to the top end of the top plate 16, and the pressure roller 4 rotationally connected to the base 10 applies pressure to the bottom end of the bottom plate 17. The two groups of pressure rollers 4 cooperate to work, extruding the top plate 16 and the bottom plate 17 to make them closely adhere to and bond with the corrugated part 15.

[0089] During this process, multiple first adjusting rods 5 continue to support the corrugated part 15 to ensure that the corrugated part 15 will not collapse or deform when subjected to the extrusion force, maintaining the integrity of the corrugated structure. At the same time, according to the type of adhesive used, the temperature of the bonding point is adjusted through the heating rod or cooling water pipe in the first adjusting rod 5 to accelerate the curing process of the adhesive.

[0090] If the device is equipped with an ultrasonic generator, ultrasonic vibration can also be activated during the bonding process, enabling the adhesive molecules to penetrate more fully into the paper fibers and form a more secure bonding interface.

[0091] Coating process of waterproof coating: While the corrugated cardboard is being bonded by the pressing roller 4, the waterproof coating equipment connected to the outer end of the pressing roller 4 continuously coats the surfaces of the top plate 16 and the bottom plate 17 with waterproof coating. The coating is evenly distributed on the cardboard surface through a precisely controlled coating roller and then quickly dried and cured by a hot air or ultraviolet device.

[0092] The waterproof coating uses an environmentally friendly water-based formula, which can not only provide good waterproof performance but also cause no pollution to the environment. The thickness of the coating is adjusted by a precision control system to ensure a uniform coating and does not affect the subsequent processing and use of the corrugated carton.

[0093] Finished product output and quality inspection: The corrugated cardboard that has completed the bonding and waterproof treatment is output from the other end of the device and enters the automatic quality inspection area. The detection system quickly detects the geometric dimensions, bonding strength, and waterproof performance of the corrugated cardboard through an optical sensor and a pressure testing device to ensure that the product quality meets the standards.

[0094] Qualified corrugated cardboard enters the next process, such as cutting, folding, printing, etc.; unqualified products are automatically marked and diverted into the recycling or repair process.

[0095] The corrugated part 15 is achieved by the alternating interspersed arrangement between multiple adjusting rods 1-5 and the precise axial movement of the adjusting rods 1-5 in the guiding box 7, realizing high-precision corrugation forming. Compared with the traditional processing method, the corrugated structure produced by this device is more regular, uniform, with improved geometric accuracy, greatly enhancing the structural integrity and load-bearing capacity of the corrugated carton.

[0096] By adjusting the distance between adjacent adjusting rods 1-5 through the adjusting ring 6, the corrugation density can be precisely adjusted to achieve differential control of the strength of different parts of the corrugated carton. Especially for the corner parts that bear greater pressure, the corrugation density can be increased to improve the local strength, while for the general areas, the standard density is maintained to optimize the material use. This "strengthening as needed" enables the overall load-bearing capacity of the corrugated carton to be improved under the same material consumption.

[0097] Multiple groups of pressing rollers 4 apply uniform extrusion pressure to the top plate 16 and the bottom plate 17. Combined with the stable support of the adjusting rods 1-5 for the corrugated part 15, it ensures the tight fitting and full bonding between the three-layer cardboard. At the same time, the precise temperature control provided by the heating rods or cooling water pipes and the optional ultrasonic vibration assistance further improve the bonding quality, increase the bonding strength, and reduce the risk of delamination and peeling during use.

[0098] During the bonding process, multiple adjusting rods 5 continuously provide support to the corrugated part 15, preventing the corrugations from collapsing or deforming when subjected to extrusion pressure. This internal support mechanism enables the corrugated structure in the final product to maintain its designed shape, improves the consistency of the peak height, and ensures the buffering performance and compressive strength of the corrugated cardboard box when bearing pressure.

[0099] Through the waterproof coating equipment connected to the outer end of the pressure roller 4, the top plate 16 and the bottom plate 17 are directly waterproofed during the production process, forming a uniform and continuous waterproof layer. This integrated waterproof process not only improves production efficiency and reduces subsequent processing steps, but also makes the waterproof layer bond more firmly with the cardboard, with more stable and lasting waterproof performance. Compared with the traditional post-treatment waterproof method, it enhances the waterproof effect and extends the service life of the corrugated cardboard box in a humid environment.

[0100] This embodiment integrates multiple processes such as corrugation forming, bonding and curing, and waterproof coating into one, realizing continuous and automated production. Compared with the traditional step-by-step processing method, it improves production efficiency, reduces the material handling and temporary storage requirements in the intermediate links, and saves production space and labor costs.

[0101] Through the precise cooperation between the first adjusting rod 5 and the guiding box 7, and the fine adjustment ability provided by the adjusting ring 6, the height stability and repeatability of the corrugation forming process are ensured. Coupled with the automated waterproof coating and quality inspection systems, the quality consistency between product batches is significantly improved, the defective product rate is reduced, and the strict requirements for product standardization in the modern packaging industry are met.

[0102] The optional ultrasonic generator promotes the molecular penetration and cross-linking of the adhesive through high-frequency vibration. It not only accelerates the curing process, shortens the production time, but also significantly improves the bonding strength of the bonding interface. After adopting the ultrasonic-assisted technology, the bonding strength can be improved, and it is more friendly to heat-sensitive materials, expanding the application range of the device.

[0103] By precisely controlling the corrugation density distribution, the material usage can be optimized on the premise of ensuring product performance. Different corrugation densities are adopted for areas with different strength requirements, avoiding the waste caused by comprehensively increasing the material usage, reducing production costs and the environmental burden at the same time.

[0104] The adjusting ring 6, temperature control system, waterproof coating equipment, etc. in this embodiment can all be integrated with the intelligent control system to realize intelligent production based on big data and artificial intelligence. By analyzing historical production data and product usage data, the system can automatically optimize the corrugation density distribution, bonding parameters and waterproof coating thickness, continuously improve product performance and production efficiency, and provide technical support for the intelligent transformation of the corrugated cardboard box manufacturing industry.

[0105] In summary, through the corrugated paper processing and waterproof technology design, this embodiment comprehensively improves the structural strength, bonding quality and waterproof performance of the corrugated cardboard box, while optimizing the production efficiency and material utilization rate, providing a high-performance, high-efficiency, environmentally friendly and economical corrugated cardboard box manufacturing solution for the packaging industry.

[0106] The above are only the preferred embodiments of the present invention. It should be understood that the present invention is not limited to the forms disclosed herein, should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be changed within the scope of the concept described herein through the above teachings or the technology or knowledge in related fields. And if the changes and variations made by those skilled in the art do not depart from the spirit and scope of the present invention, they should all be within the protection scope of the appended claims of the present invention.

Claims

1. A corrugated cardboard box processing device with waterproof and high strength, characterized in that, It includes guide rail brackets (1) arranged symmetrically left and right. A first guide bar (2) is slidably connected to the outer ends of the guide rail brackets (1). A synchronous belt (3) is fixedly connected to the outer end of the first guide bar (2). A plurality of pressure rollers (4) are rotatably connected between the two guide rail brackets (1). A plurality of first adjusting rods (5) are slidably connected to the first guide bar (2). At the corresponding positions of the first guide bar (2) far from the pressure rollers (4) and the first adjusting rods (5), adjusting rings (6) corresponding to the first adjusting rods (5) one by one are fixedly connected. The adjusting ring (6) is composed of three adjusting blocks, and the adjusting blocks are made of electrostrictive materials. A guide box (7) for adjusting the axial position of the first adjusting rod (5) is fixedly connected to the end of the first guide bar (2) far from the pressure rollers (4). The axis direction of the first adjusting rod (5) is parallel to the axis direction of the pressure rollers (4). The guide box (7) is inclined, and the included angle between the guide box (7) and the axis of the first adjusting rod (5) is between 30° and 60°. The first adjusting rod (5) penetrates through the guide box (7), and a second adjusting rod (8) is fixedly connected to the penetrated part. A boss is provided on the part of the first adjusting rod (5) located inside the guide box (7). The first adjusting rod (5) is of a hollow structure, and a heating rod or a cooling water pipe is fixedly connected to the hollow part. The outer end of the pressure roller (4) is connected to an external waterproof coating device.

2. The corrugated cardboard box processing device with waterproof and high strength according to claim 1, characterized in that: A second guide bar (9) is provided at the end of the guide box (7) far from the first guide bar (2). The second adjusting rod (8) penetrates through the second guide bar (9) and is slidably connected to the second guide bar (9). A guide rail bracket (1) is also slidably connected inside the second guide bar (9). A synchronous belt (3) is also fixedly connected to the outer end of the second guide bar (9).

3. The corrugated cardboard box processing device with waterproof and high strength according to claim 2, characterized in that: Both the first guide bar (2) and the second guide bar (9) are made of flexible materials. A base (10) is fixedly connected to the bottom end of the guide box (7). A motor (11) is fixedly connected to the end of the base (10) far from the pressure rollers (4). The power shaft of the motor (11) penetrates through the base (10), and a gear (12) is fixedly connected to the penetrated part. The outer end of the gear (12) is meshed with the synchronous belt (3). A gear (12) is also meshed with the outer end of the second guide bar (9), and this gear (12) is also fixedly connected to the motor (11).

4. A corrugated cardboard box processing device with waterproof and high strength according to claim 3, characterized in that: A synchronous rod (13) for making the two gears (12) rotate synchronously is fixedly connected between the two gears (12) meshed with the two synchronous belts (3).

5. A corrugated cardboard box processing device with waterproof and high strength according to claim 2, characterized in that: Both the heating rod or the cooling water pipe penetrate through the second adjusting rod (8), and the penetrated part is connected to an external heating control system or a cooling system.

6. The processing device for a waterproof and high-strength corrugated cardboard box according to claim 5, wherein: A support rod (14) is fixedly connected to the first guide bar (2). The end of the support rod (14) far from the first guide bar (2) penetrates through the guide box (7) and the first guide bar (2) slidably connected to the second guide bar (9), and is bent downward to be fixedly connected to the base (10).

7. A corrugated cardboard box processing device with waterproof and high strength according to claim 6, characterized in that: The corrugated parts (15) of the corrugated paper to be processed sequentially pass through between a plurality of first adjusting rods (5) at the end close to the base (10) alternately, and a top plate (16) and a bottom plate (17) are arranged in contact with the top end and the bottom end of the corrugated part (15) respectively.

8. A corrugated cardboard box processing device with waterproof and high strength according to claim 7, characterized in that: A plurality of pressure rollers (4) are also rotatably connected between the two bases (10). The pressure rollers (4) rotatably connected to the first guide bar (2) abut against the top end of the top plate (16), and the pressure rollers (4) rotatably connected to the base (10) abut against the bottom end of the bottom plate (17). The pressure rollers (4) rotatably connected to the first guide bar (2) and the base (10) squeeze the top plate (16) and the bottom plate (17) so that the top plate (16) and the bottom plate (17) are bonded to the corrugated portion (15).

9. A corrugated cardboard box processing device with waterproof and high strength according to claim 7, characterized in that: The boss on the first adjusting rod (5) cooperates with the inner wall of the guide box (7), so that when the first adjusting rod (5) moves following the first guide bar (2), it can move along the axial direction of the first adjusting rod (5) through the cooperation with the guide box (7). The distance between the tops of the two guide boxes (7) is greater than the distance between their bottoms.

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