A waterproof and moisture-proof corrugated cardboard surface treatment device

Abstract

This utility model relates to the field of corrugated cardboard processing technology, and more particularly to a surface treatment device for waterproof and moisture-proof corrugated cardboard. This utility model provides a surface treatment device for waterproof and moisture-proof corrugated cardboard, including a housing, a controller, a servo motor, a drive shaft, and a coating roller. The controller is fixedly connected to the front right side of the housing, and the servo motor is also fixedly connected to the front right side of the housing. The servo motor is electrically connected to the controller. A drive shaft is rotatably connected inside the housing, and a coating roller is fixedly connected to the drive shaft. This utility model synchronously drives the conveyor belt and the coating roller with the servo motor, ensuring that their linear speeds are consistent, preventing cardboard slippage and coating deformation. Combined with the continuous spraying of paint onto the coating roller by the paint spray gun, it achieves uniform, continuous, and precise coating of paint on the cardboard surface, effectively solving the problems of coating accumulation, sagging, missed coating, or uneven coating, and ensuring stable and reliable waterproof performance.

Description

Technical Field

[0001] This utility model relates to the field of corrugated cardboard processing technology, and in particular to a surface treatment device for waterproof and moisture-proof corrugated cardboard. Background Technology

[0002] Corrugated cardboard is widely used in logistics and product packaging due to its lightweight, low cost, and good cushioning properties. However, its main component, cellulose, is hydrophilic, causing the cardboard to easily absorb moisture in humid environments or when in contact with water or water vapor. This leads to softening, deformation, decreased strength, and even damage, severely affecting the protective function of the packaging and the safety of the goods. Therefore, effective waterproofing and moisture-proofing treatment of corrugated cardboard is a key step in improving its performance.

[0003] Currently used waterproofing and moisture-proofing methods, such as waxing, spraying, and dipping, generally suffer from the core technical challenge of poor coating uniformity. Waxing is prone to coating accumulation, sagging, or uneven thickness due to wax viscosity and temperature variations. Spraying is affected by nozzle condition, atomization pressure, and operational stability, often resulting in uneven distribution, streaks, pitting, or edge buildup. Dipping causes surface liquid redistribution after removal from the immersion tank, resulting in a thinner top and thicker bottom. These unevennesses make it impossible to precisely control the coating thickness, hindering the formation of a continuous and smooth protective film.

[0004] Therefore, it is necessary to design a waterproof and moisture-proof corrugated cardboard surface treatment device to solve the above-mentioned technical problems. Utility Model Content

[0005] In order to overcome the shortcomings of poor coating uniformity, easy accumulation or uneven distribution, this utility model provides a surface treatment device for waterproof and moisture-proof corrugated cardboard.

[0006] The technical implementation scheme of this utility model is as follows: a waterproof and moisture-proof corrugated cardboard surface treatment device, including a box body, a controller, a box door, a viewing window, and a feeding frame. The controller is fixedly connected to the right side of the front of the box body, and the box door is rotatably connected to the left side of the front of the box body. The box door is provided with a viewing window. The feeding frame is fixedly connected to the left side of the box body. It also includes a servo motor, a power wheel, a conveyor belt, a pulley assembly, a transmission belt, a transmission shaft, and a coating roller. The servo motor is fixedly connected to the right side of the front of the box body and is electrically connected to the controller. The power wheels are rotatably connected to the left and right sides inside the box body. The conveyor belt is wound between the two power wheels and has multiple ventilation holes. The output shaft of the servo motor is fixedly connected to the right power wheel. The transmission shaft is rotatably connected to the middle of the box body. The coating roller is fixedly connected to the transmission shaft and is located above the conveyor belt. The pulley assembly includes a left pulley and a right pulley. The right pulley is also fixedly connected to the output shaft of the servo motor. The left pulley is fixedly connected to the transmission shaft, and the transmission belt is wound between the left pulley and the right pulley.

[0007] As an improvement to the above solution, it also includes a cavity, a baffle plate, a paint storage box, a connecting pipe, a water pump, and a paint spray gun. The baffle plate is fixedly connected inside the cavity, and the cavity is divided by the baffle plate. The paint storage box is fixedly connected inside the cavity. The top of the paint storage box is connected to the paint spray gun through the connecting pipe. The paint spray gun is located inside the cavity. A water pump is installed on the connecting pipe and is fixedly installed on the top of the paint storage box.

[0008] As an improvement to the above solution, it also includes a hot air generator, a guide plate, a drain frame, and a drain pipe. The hot air generator is connected to and communicates with the top of the box. The guide plate is fixedly connected to the box at a position below the conveyor belt. The drain frame is fixedly connected to the end of the guide plate. The drain pipe is connected to and communicates with the front side of the drain frame.

[0009] As an improvement to the above solution, it also includes a discharge frame, an exhaust window and a dehumidifying fan. The discharge frame is fixedly connected to the lower right side of the conveyor belt inside the box. The left and right sides of the rear of the box and the baffle are connected and connected to exhaust windows. The lower rear side of the box is connected and connected to a dehumidifying fan.

[0010] As an improvement to the above solution, the viewport is made of a transparent material.

[0011] As an improvement to the above scheme, the deflector has a tilted structure with the left side higher than the right side.

[0012] The beneficial effects of this utility model are: 1. This utility model uses a servo motor to synchronously drive the conveyor belt and coating roller, ensuring that the linear speeds of the two are consistent, avoiding cardboard dragging and slipping and coating deformation; combined with the continuous spraying of the coating roller by the paint spray gun, it achieves uniform, continuous and precise coating of paint on the surface of the cardboard, effectively solving the problems of coating accumulation, dripping, missed coating or uneven coating, and ensuring stable and reliable waterproof performance.

[0013] 2. This utility model uses hot air to evenly blow onto the surface of the cardboard through a guide plate, and in conjunction with a dehumidifying fan to force out the hot and humid air, quickly reducing the humidity inside the chamber, significantly improving drying efficiency, and shortening processing time.

[0014] 3. This utility model adopts a servo motor for precise synchronous drive, which ensures the stability and continuity of the coating process; the key components are reasonably laid out, and the design of the box door and viewing window facilitates observation of the operating status and daily maintenance, thereby improving the overall reliability and ease of use of the equipment. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the components of this utility model, including the housing, controller, and door.

[0016] Figure 2This is a three-dimensional structural cross-sectional view of the paint storage box, connecting pipe, and water pump components of this utility model.

[0017] Figure 3 This is a three-dimensional structural cross-sectional view of the servo motor, drive wheel, and conveyor belt components of this utility model.

[0018] Figure 4 This is a schematic diagram of the planar structure of the pulley assembly, transmission belt, and transmission shaft of this utility model.

[0019] Figure 5 This is a three-dimensional structural cross-sectional view of the drainage frame, drainage pipe, and discharge frame components of this utility model.

[0020] Figure 6 This is a plan view of the barrier plate, hot air generator, and exhaust window components of this utility model.

[0021] Figure 7 This is a three-dimensional structural cross-sectional view of the cavity, exhaust window, and dehumidification fan of this utility model.

[0022] The markings in the attached diagram are as follows: 1: Box body, 2: Controller, 3: Box door, 4: Viewing window, 5: Feed frame, 6: Cavity, 7: Baffle plate, 8: Paint storage box, 9: Connecting pipe, 10: Water pump, 11: Paint spray gun, 12: Servo motor, 13: Power wheel, 14: Conveyor belt, 15: Pulley assembly, 16: Drive belt, 17: Drive shaft, 18: Coating roller, 19: Hot air generator, 20: Guide plate, 21: Drain frame, 22: Drain pipe, 23: Discharge frame, 24: Exhaust window, 25: Dehumidification fan. Detailed Implementation

[0023] Example: A surface treatment device for waterproof and moisture-proof corrugated cardboard, such as... Figure 1 , Figure 3 and Figure 4As shown, the device includes a housing 1, a controller 2, a door 3, a viewing window 4, and a feeding frame 5. The controller 2 is screwed to the front right side of the housing 1, and the door 3 is rotatably connected to the front left side of the housing 1. The door 3 has a viewing window 4, which is made of transparent material. The feeding frame 5 is screwed to the left side of the housing 1. The device also includes a servo motor 12, a drive wheel 13, a conveyor belt 14, a pulley set 15, a transmission belt 16, a transmission shaft 17, and a coating roller 18. The servo motor 12 is screwed to the front right side of the housing 1 and is electrically connected to the controller 2. The left side of the housing 1... The right side is rotatably connected to the power wheel 13, and the two power wheels 13 are connected to the conveyor belt 14. The conveyor belt 14 has multiple ventilation holes. The output shaft of the servo motor 12 is fixedly connected to the right power wheel 13. The center of the box 1 is rotatably connected to the transmission shaft 17. The coating roller 18 is fixedly connected to the transmission shaft 17. The coating roller 18 is located above the conveyor belt 14. The pulley group 15 includes a left pulley and a right pulley. The output shaft of the servo motor 12 is also fixedly connected to the right pulley. The transmission shaft 17 is fixedly connected to the left pulley. The transmission belt 16 is wound between the left pulley and the right pulley.

[0024] like Figure 2 As shown, it also includes a cavity 6, a baffle plate 7, a paint storage box 8, a connecting pipe 9, a water pump 10, and a paint spray gun 11. The baffle plate 7 is fixedly connected inside the box 1, and the cavity 6 is separated inside the box 1 by the baffle plate 7. The paint storage box 8 is connected inside the cavity 6 by screws. The top of the paint storage box 8 is connected to the paint spray gun 11 through the connecting pipe 9. The paint spray gun 11 is located inside the box 1. The water pump 10 is provided on the connecting pipe 9 and is fixedly installed on the top of the paint storage box 8.

[0025] like Figure 5 , Figure 6 and Figure 7 As shown, it also includes a hot air generator 19, a guide plate 20, a drain frame 21, a drain pipe 22, a discharge frame 23, an exhaust window 24, and a dehumidifying fan 25. The top of the housing 1 is connected to and communicates with the hot air generator 19. Inside the housing 1, below the conveyor belt 14, the guide plate 20 is connected to the housing by screws. The guide plate 20 has a left-high and right-low inclined structure. The end of the guide plate 20 is connected to the drain frame 21 by screws. The front side of the drain frame 21 is connected to and communicates with the drain pipe 22. Inside the housing 1, below the right side of the conveyor belt 14, the discharge frame 23 is connected to the housing by screws. The rear left and right sides of the housing 1 and the baffle plate 7 are both connected to and communicate with the exhaust window 24. The lower rear side of the housing 1 is connected to and communicates with the dehumidifying fan 25.

[0026] When the staff uses this equipment, the corrugated cardboard to be processed first enters from the feed box 5 on the left side of the device. The controller 2 has been set with the operating parameters. The waterproof and moisture-proof coating in the coating storage box 8 is transported to the coating spray gun 11 through the connecting pipe 9 under the action of the water pump 10. The coating spray gun 11 sprays the coating onto the surface of the coating roller 18 to provide coating for the coating process.

[0027] When the servo motor 12 starts, its output shaft directly drives the right power wheel 13, which in turn drives the conveyor belt 14 to rotate, thus achieving smooth conveying of the corrugated cardboard. At the same time, the right pulley on the output shaft of the servo motor 12 drives the left pulley on the transmission shaft 17 through the transmission belt 16, thereby driving the coating roller 18 to rotate. The surface of the coating roller 18 contacts the upper surface of the corrugated cardboard on the lower conveyor belt 14, transferring the coating material from the coating roller 18 evenly and continuously onto the surface of the cardboard. The speed control of the servo motor 12 ensures that the linear speed of the coating roller 18 is precisely synchronized with the linear speed of the conveyor belt 14, effectively ensuring the uniformity and continuity of the coating. Excess coating material or condensate drips onto the guide plate 20, which, due to its inclined structure, collects in the drain frame 21 and is finally discharged out of the box through the drain pipe 22, keeping the inside of the box clean.

[0028] Then, the hot air generator 19 is started. The hot air generated by the hot air generator 19 is guided by the guide plate 20 to form a uniform airflow that blows from the top and bottom sides onto the cardboard surface, causing the moisture or solvent in the coating to evaporate quickly. The dehumidification fan 25 works continuously, drawing the waste gas accumulated in the drying chamber through the exhaust window 24 at the rear of the chamber 1, and then drawing it out and discharging it outside the equipment via the dehumidification fan 25. This process continuously replaces the air inside the chamber, maintaining the low humidity environment required for drying and ensuring that the coating dries and cures quickly and thoroughly.

Claims

1. A waterproof and moisture-proof corrugated cardboard surface treatment device, comprising a box body (1), a controller (2), a box door (3), a viewing window (4), and a feeding frame (5), wherein the controller (2) is fixedly connected to the right front part of the box body (1), the box door (3) is rotatably connected to the left front part of the box body (1), the viewing window (4) is provided on the box door (3), and the feeding frame (5) is fixedly connected to the left side of the box body (1), characterized in that: It also includes a servo motor (12), a drive wheel (13), a conveyor belt (14), a pulley group (15), a transmission belt (16), a transmission shaft (17), and a coating roller (18). The servo motor (12) is fixedly connected to the front right side of the housing (1). The servo motor (12) is electrically connected to the controller (2). The drive wheel (13) is rotatably connected to the left and right sides inside the housing (1). The conveyor belt (14) is wound between the two drive wheels (13). The conveyor belt (14) has multiple ventilation holes. The output shaft of the servo motor (12) is fixedly connected to the right power wheel (13). The transmission shaft (17) is rotatably connected in the middle of the housing (1). A coating roller (18) is fixedly connected to the transmission shaft (17). The coating roller (18) is located above the conveyor belt (14). The pulley group (15) includes a left pulley and a right pulley. The right pulley is also fixedly connected to the output shaft of the servo motor (12). The left pulley is fixedly connected to the transmission shaft (17). A transmission belt (16) is wound between the left pulley and the right pulley.

2. The waterproof and moisture-proof corrugated cardboard surface treatment device according to claim 1, characterized in that: It also includes a cavity (6), a baffle plate (7), a paint storage box (8), a connecting pipe (9), a water pump (10), and a paint spray gun (11). The baffle plate (7) is fixedly connected inside the box (1). The cavity (6) is separated inside the box (1) by the baffle plate (7). The paint storage box (8) is fixedly connected inside the cavity (6). The top of the paint storage box (8) is connected to the paint spray gun (11) through the connecting pipe (9). The paint spray gun (11) is located inside the box (1). The water pump (10) is provided on the connecting pipe (9). The water pump (10) is fixedly installed on the top of the paint storage box (8).

3. A waterproof and moisture-proof corrugated cardboard surface treatment device according to claim 2, characterized in that: It also includes a hot air generator (19), a guide plate (20), a drain frame (21) and a drain pipe (22). The top of the box (1) is connected to and communicates with the hot air generator (19). Inside the box (1), a guide plate (20) is fixedly connected to a position below the conveyor belt (14). The end of the guide plate (20) is fixedly connected to the drain frame (21). The front side of the drain frame (21) is connected to and communicates with the drain pipe (22).

4. A waterproof and moisture-proof corrugated cardboard surface treatment device according to claim 3, characterized in that: It also includes a discharge frame (23), an exhaust window (24) and a dehumidifying fan (25). The discharge frame (23) is fixedly connected to the lower right side of the conveyor belt (14) inside the box (1). The left and right sides of the rear of the box (1) and the baffle plate (7) are connected and connected to the exhaust window (24). The lower rear side of the box (1) is connected and connected to the dehumidifying fan (25).

5. A waterproof and moisture-proof corrugated cardboard surface treatment device according to claim 4, characterized in that: The viewport (4) is made of transparent material.

6. A waterproof and moisture-proof corrugated cardboard surface treatment device according to claim 5, characterized in that: The guide vane (20) has a tilted structure with the left side higher than the right side.

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