A corrugated carton color-coating and gluing device

Abstract

The application relates to a corrugated carton color surface gluing device, and belongs to the technical field of corrugated carton manufacturing. The device comprises a rack, a gluing assembly, an adjusting mechanism and an anti-sticking assembly. The gluing assembly comprises a gluing driving motor, a gluing roller, a glue distributing roller, a glue outlet pipe and a pressing roller. The glue distributing roller is arranged on one side of the gluing roller winding the color surface paper and is attached to the gluing roller. The glue outlet pipe is arranged above the attaching position of the glue distributing roller and the gluing roller. The adjusting mechanism is used for adjusting the attaching pressure of the glue distributing roller and the gluing roller. The anti-sticking assembly comprises an anti-sticking cutter which is vertically arranged and attached to one side of the gluing roller winding the color surface paper. During work, glue drops from the glue outlet pipe, the gluing roller rotates to drive the glue distributing roller to uniformly spread the glue to form a glue film on the color surface paper. The anti-sticking cutter prevents the color surface paper from being adhered. The application can control the thickness of the glue film, reduce glue waste, avoid the color surface paper from being adhered and improve the production efficiency.

Description

Technical Field

[0001] This application relates to the technical field of corrugated cardboard box manufacturing, and in particular to a corrugated cardboard box color coating device. Background Technology

[0002] Corrugated cardboard boxes, as a widely used packaging material, often enhance the product display effect by affixing colored face paper. Currently, the commonly used colored face paper coating equipment in the industry mainly relies on a coating roller structure to achieve adhesive application. Specifically, the coating roller is partially immersed in a glue tank containing glue; as the roller rotates, a certain thickness of glue adheres to its surface, and the coating is completed through contact with the colored face paper. However, this traditional coating method has the following problems.

[0003] Because the method of immersing the coating roller in the adhesive solution relies on the liquid level and roller speed to control the adhesive film thickness, this coating method can result in an excessively thick adhesive film and excessive adhesive application, leading to adhesive waste and increased production costs. Furthermore, colored paper is typically fed to the coating station continuously in single sheets. When the coating roller comes into contact with the paper, due to the strong viscosity of the adhesive and the force between the roller surface and the paper, the colored paper is prone to adhering to the coating roller surface, either entirely or partially. This malfunction causes frequent production line interruptions, requiring manual peeling and cleaning, thus affecting the continuous operating efficiency of the equipment. Utility Model Content

[0004] To address the problems of excessively thick adhesive film leading to adhesive waste and colored paper easily adhering to the coating roller in traditional coating devices, this application provides a corrugated carton colored paper coating device.

[0005] The corrugated cardboard box color coating device provided in this application adopts the following technical solution: A corrugated cardboard box color coating device includes a frame, a coating assembly, an adjustment mechanism, and an anti-sticking assembly. The coating assembly includes a coating drive motor, a coating roller, a leveling roller, a glue outlet tube, and a pressure roller mounted on the frame. The coating drive motor drives the coating roller to rotate. The leveling roller is positioned on the side of the coating roller where the color paper is wound, and the leveling roller is in contact with the coating roller. The pressure roller is located below the coating roller. The glue outlet tube is positioned above the coating roller, above the contact point between the leveling roller and the coating roller. The adjustment mechanism adjusts the contact pressure between the leveling roller and the coating roller. The anti-sticking assembly includes an anti-sticking blade, which is vertically mounted on the frame and also adheres to the side wall of the coating roller where the color paper is wound out.

[0006] By adopting the above technical solution, this solution, through the setting of a spreading roller that adheres to the coating roller, ensures that the glue dripping from the glue outlet pipe is evenly spread on the surface of the coating roller. An adjustment mechanism controls the bonding pressure between the spreading roller and the coating roller. This pressure directly determines the degree of compression experienced by the glue as it passes through the gap between the two rollers, thereby effectively controlling the thickness of the glue film formed on the surface of the coating roller. Simultaneously, the anti-sticking blade in the anti-sticking component adheres tightly to the surface of the coating roller at a specific angle. When colored paper adheres, the rotation of the coating roller allows it to be peeled off smoothly, effectively preventing equipment downtime due to paper adhesion and ensuring continuous production.

[0007] Preferably, the adjustment mechanism includes an adjustment support frame and a pressing adjustment assembly. The adjustment support frame is mounted on the machine frame, and the pressing adjustment assembly includes a first adjusting screw and a first adjusting block. The first adjusting block is mounted on the machine frame, and the first adjusting screw is mounted on the adjustment support frame. The first adjusting screw is also threadedly connected to the first adjusting block, and the glue-applying roller is mounted on the first adjusting block. The first adjusting screw is used to adjust the distance between the glue-applying roller and the pressing roller.

[0008] By adopting the above technical solution, this solution drives the first adjusting block to move vertically on the adjusting support frame by rotating the first adjusting screw, thereby causing the coating roller mounted on the first adjusting block to move closer to or away from the pressure roller. This structure enables flexible adjustment of the gap between the coating roller and the pressure roller, allowing the device to adapt to coating operations on colored paper of different thicknesses, thus improving the versatility of the equipment.

[0009] Preferably, the adjusting mechanism further includes a film thickness adjusting component, which includes a second adjusting screw and a second adjusting block. The second adjusting block is disposed on the first adjusting block, and the second adjusting screw is disposed on the first adjusting block. The second adjusting screw is also threadedly connected to the second adjusting block. The glue-spreading roller is disposed on the second adjusting block. The second adjusting screw is used to adjust the bonding pressure between the glue-spreading roller and the glue-coating roller.

[0010] By adopting the above technical solution, this solution drives the second adjusting block to move vertically on the first adjusting block by rotating the second adjusting screw, thereby adjusting the bonding pressure between the glue-spreading roller and the glue-applying roller. By changing the pressure between the two rollers, the degree of extrusion of the glue liquid when passing through the roller gap can be controlled, thereby achieving the control of the thickness of the glue film coated on the glue-applying roller and meeting different bonding process requirements.

[0011] Preferably, the frame is further provided with a conveying mechanism located on one side of the gluing assembly. The conveying mechanism includes a first conveying roller, a second conveying roller, a conveyor belt, a contact component, and a conveyor motor. Both the first and second conveying rollers are mounted on the frame, with the second conveying roller located on one side of the gluing roller. The conveyor motor is mounted on the frame and is used to drive the first conveying roller to rotate. The conveyor belt is sleeved between the first and second conveying rollers and is used to convey colored paper to the gluing assembly. The contact component is mounted on the frame and located above the conveyor belt. The contact component is used to press the colored paper firmly onto the conveyor belt.

[0012] By adopting the above technical solution, this solution uses a transmission motor to drive the first and second transmission rollers, thereby driving the conveyor belt and realizing the automatic conveying of colored paper. The setting of the contact component can apply a certain constraint force to the upper surface of the colored paper during the conveying process, preventing the colored paper from slipping or floating on the conveyor belt, and ensuring that the colored paper is delivered flat and accurately to the glue coating component.

[0013] Preferably, the contact component includes a mounting plate, a limiting plate, and ball bearings. The mounting plate is mounted on the frame and located above the conveyor belt. The limiting plate is mounted on the mounting plate and located between the mounting plate and the conveyor belt. The limiting plate is provided with ball bearings that are in close contact with the top surface of the colored paper.

[0014] By adopting the above technical solution, a freely rotating ball bearing is installed on the limiting plate to contact the upper surface of the colored paper. This method provides the necessary downward pressure while converting sliding friction into rolling friction, reducing conveying resistance, avoiding scratches or wear on the surface of the colored paper due to friction, and ensuring the quality of the finished colored paper.

[0015] Preferably, the abutting component further includes a connector, which is a connecting screw. The connecting screw is disposed on the mounting plate and is also threadedly connected to the limiting plate. The connecting screw is used to adjust the clamping force between the ball bearing and the colored paper.

[0016] By adopting the above technical solution, the connector adopts a screw structure, which can flexibly adjust the lateral position of the limiting plate on the mounting plate, so that the ball bearings accurately correspond to conveyor belts of different widths, thereby adapting to colored paper of different sizes and ensuring effective limiting during the conveying process.

[0017] Preferably, the frame is further provided with a feeding mechanism, which includes a connecting rod, a connecting block, a support rod, a feeding roller, a tension spring, and a feeding assembly. The feeding assembly includes a feeding roller and a feeding drive motor. The feeding roller and the feeding drive motor are mounted on the frame. The feeding drive motor drives the feeding roller to rotate. The feeding roller is located on one side of the first conveyor roller. The connecting rod is mounted on the frame and is located above the first conveyor roller. The connecting block is mounted on the connecting rod. The support rod is mounted on the connecting block and is located above the feeding roller. A bracket is vertically mounted on the support rod. The feeding roller is located at the lower end of the bracket and is in contact with the feeding roller. The tension spring connects the support rod to the frame.

[0018] By adopting the above technical solution, this solution uses a feeding drive motor to drive the feeding roller to rotate, and under the action of a tension spring, the feeding roller is always pressed against the feeding roller, forming a reliable feeding clamping point. This structure can smoothly guide the single sheet of colored paper from the feeding assembly into the subsequent conveying mechanism, realizing automated connection from the material pile to the conveyor belt and improving feeding efficiency.

[0019] Preferably, the feeding mechanism further includes a feeding assembly, which includes a feeding support frame, a suction cylinder, and a moving cylinder. The feeding support frame is mounted on the frame and located on one side of the feeding roller. The moving cylinder is mounted on the feeding support frame, and the suction cylinder is mounted on the piston rod of the moving cylinder. The piston rod of the suction cylinder is equipped with a suction cup. The suction cylinder is used to suck up materials, and the moving cylinder is used to convey materials to the feeding roller.

[0020] By adopting the above technical solution, this solution uses a suction cylinder to drive a suction cup to pick up colored paper, and then a moving cylinder to horizontally move the suction cup and the picked-up colored paper to the feeding station. This automated material picking and feeding process improves work efficiency.

[0021] In summary, this application includes at least one of the following beneficial technical effects: 1. By employing a bonding design between the glue-spreading roller and the coating roller, and in conjunction with a film thickness adjustment component that allows for adjustable bonding pressure between the two rollers, effective control of the film thickness on the coating roller surface is achieved, solving the problem of glue waste caused by excessive film thickness. Simultaneously, the anti-sticking component features an anti-sticking blade positioned at a specific angle, which can promptly and effectively peel off any colored paper that may adhere to the coating roller, effectively preventing unplanned downtime and ensuring production continuity and efficiency.

[0022] 2. By rotating the first adjusting screw, the first adjusting block is driven to move vertically on the adjusting support frame, thereby causing the coating roller mounted on the first adjusting block to move closer to or further away from the pressure roller. This structure enables flexible adjustment of the gap between the coating roller and the pressure roller, allowing the device to adapt to coating operations on colored paper of different thicknesses, thus improving the versatility of the equipment. Attached Figure Description

[0023] Figure 1 This is a schematic diagram illustrating the overall structure in the embodiments of this application.

[0024] Figure 2 This is a structural schematic diagram used to illustrate the feeding mechanism in the embodiments of this application.

[0025] Figure 3 This is a schematic diagram illustrating the structure of the conveying mechanism in the embodiments of this application.

[0026] Figure 4 This is a cross-sectional schematic diagram illustrating the conveying mechanism and the adhesive application assembly in the embodiments of this application.

[0027] Figure 5 This is a structural schematic diagram illustrating the adjustment mechanism and anti-stick component in the embodiments of this application.

[0028] Explanation of reference numerals in the attached drawings: 1. Frame; 2. Feeding mechanism; 21. Connecting rod; 22. Connecting block; 23. Support rod; 231. Bracket; 232. Feeding roller; 24. Tension spring; 25. Feeding assembly; 251. Feeding support frame; 252. Suction cylinder; 2521. Suction cup; 253. Moving cylinder; 26. Feeding assembly; 261. Feeding drive motor; 262. Feeding roller; 3. Conveying mechanism; 31. First conveying roller; 32. Second conveying roller; 33. Conveyor belt; 34. Contact assembly; 341. Mounting plate; 3411. Mounting groove; 342. Limiting plate; 3 421. Ball bearing; 343. Connector; 3431. Positioning plate; 35. Conveyor motor; 4. Glue application assembly; 41. Glue application drive motor; 42. Glue application roller; 43. Glue leveling roller; 44. Glue outlet tube; 441. Glue dripping tube; 4411. Electrically controlled valve; 45. Pressure roller; 5. Adjustment mechanism; 51. Adjustment support frame; 52. Pressure adjustment assembly; 521. First adjusting screw; 522. First adjusting block; 53. Glue film thickness adjustment assembly; 531. Second adjusting screw; 532. Second adjusting block; 6. Anti-stick assembly; 61. Anti-stick support rod; 62. Anti-stick release knife. Detailed Implementation

[0029] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0030] This application discloses a corrugated cardboard box color coating device, referring to... Figure 1 The system includes a frame 1, an adhesive coating assembly 4, and an anti-sticking assembly 6. Both the adhesive coating assembly 4 and the anti-sticking assembly 6 are mounted on the frame 1. The frame 1 also has a feeding mechanism 2 and a conveying mechanism 3. The conveying mechanism 3 is located on one side of the feeding mechanism 2 and is used to feed the colored paper to the conveying mechanism 3. The adhesive coating assembly 4 is located on one side of the conveying mechanism 3 and is used to convey the colored paper to the adhesive coating assembly 4. The adhesive coating assembly 4 is used to apply adhesive to the colored paper. The anti-sticking assembly 6 is located on one side of the adhesive coating assembly 4 and is used to prevent the colored paper from sticking to the adhesive coating assembly 4.

[0031] Reference Figures 1-2 The feeding mechanism 2 includes a connecting rod 21, a connecting block 22, a support rod 23, a tension spring 24, a feeding assembly 25, and a feeding assembly 26, with the feeding assembly 26 located on one side of the feeding assembly 25. The feeding assembly 25 includes a feeding support frame 251, a suction cylinder 252, and a moving cylinder 253. The feeding support frame 251 is fixedly connected to the frame 1, and the moving cylinder 253 is fixedly connected to the feeding support frame 251. The suction cylinder 252 is vertically fixedly connected to the end of the piston rod of the moving cylinder 253, and a suction cup 2521 is fixedly connected to the end of the piston rod of the suction cylinder 252. The suction cylinder 252 picks up colored paper through the suction cup 2521, and then the moving cylinder 253 pushes the suction cylinder 252, which has picked up the colored paper, towards the feeding assembly 26.

[0032] Reference Figure 2 The feeding assembly 26 includes a feeding drive motor 261 and a feeding roller 262. The feeding roller 262 is rotatably connected to the frame 1, and the feeding drive motor 261 is fixedly connected to the frame 1. The output shaft of the feeding drive motor 261 is fixedly connected to the feeding roller 262. A connecting rod 21 is mounted on the frame 1, and the axis of the connecting rod 21 is perpendicular to the length direction of the frame 1 and parallel to the axis of the feeding roller 262. One end of a connecting block 22 is rotatably connected to the connecting rod 21, and a support rod 23 is rotatably connected to the other end of the connecting block 22. The axis of the support rod 23 is parallel to the axis of the connecting rod 21. In this embodiment, three brackets 231 are vertically fixedly connected to the lower side wall of the support rod 23. The three brackets 231 are arranged along the axis of the support rod 23, and a feeding roller 232 is rotatably connected to the lower end of each bracket 231. Each feeding roller 232 is in close contact with the feeding roller 262. Two tension springs 24 are provided, each vertically positioned at both ends of the support rod 23. Specifically, the upper end of the tension spring 24 is attached to the support rod 23, and the lower end of the tension spring 24 is attached to the frame 1. The colored paper passes between the feed roller 232 and the feed roller 262 and enters the conveying mechanism 3.

[0033] Reference Figures 1-2The moving cylinder 253 on the feeding support frame 251 pushes the suction cylinder 252 horizontally to the material pile position. Then, the piston rod of the suction cylinder 252 extends downward, causing the suction cup 2521 fixed at the end to contact and pick up the top single sheet of colored paper. After the suction cup 2521 firmly picks up the colored paper, the piston rod of the suction cylinder 252 retracts and lifts the colored paper. The moving cylinder 253 then drives the suction cylinder 252 to move horizontally as a whole, transferring the colored paper to the inlet area of ​​the feeding assembly 26. The feeding drive motor 261 continuously drives the feeding roller 262 to rotate. The colored paper is fed to the inlet between the feeding roller 262 and the feeding roller 232. The connecting block 22 can rotate around the connecting rod 21, and the support rod 23 is rotatably connected to the other end of the connecting block 22. The three feeding rollers 232 are mounted on the lower side of the support rod 23 via the bracket 231. Under the continuous downward pull of the tension spring 24, the support rod 23 drives the feed roller 232 to always press against the surface of the feed roller 262, forming a reliable clamping force. The colored paper is captured by the rotating feed roller 262 and, under the combined squeezing and friction of the feed roller 262 and the feed roller 232, is fed smoothly and continuously into the conveying mechanism 3.

[0034] Reference Figures 1-3 The conveying mechanism 3 includes a first conveying roller 31, a second conveying roller 32, a conveyor belt 33, a contact assembly 34, and a conveyor motor 35. The first conveying roller 31 is rotatably connected to the frame 1, and the conveyor motor 35 is fixedly connected to the frame 1. The output shaft of the conveyor motor 35 is fixedly connected to the end of the first conveying roller 31. The first conveying roller 31 is located on one side of the feed roller 262, and its axis is parallel to the axis of the feed roller 262. The second conveying roller 32 is rotatably connected to the frame 1 and is located on one side of the first conveying roller 31. The conveyor belt 33 is sleeved between the first conveying roller 31 and the second conveying roller 32. In this embodiment, three conveyor belts 33 are provided, arranged along the axis of the first conveying roller 31, and their positions can be adjusted on the first conveying roller 31 and the second conveying roller 32 to accommodate colored paper of different widths.

[0035] Reference Figures 3-4The contact component 34 includes a mounting plate 341, a limiting plate 342, and ball bearings 3421. The mounting plate 341 is fixedly connected to the frame 1 and is also located above the conveyor belt 33. In this embodiment, two mounting plates 341 are provided, and the two mounting plates 341 are fixedly arranged on the frame 1 along its length direction. Each mounting plate 341 has a mounting groove 3411 along its own length direction. In this embodiment, three limiting plates 342 are provided, and the three limiting plates 342 are arranged on the mounting plate 341 along its length direction. The limiting plates 342 are located between the mounting plate 341 and the conveyor belt 33. Each limiting plate 342 is located above a conveyor belt 33, and a row of ball bearings 3421 is rotatably connected to each limiting plate 342 along its own length direction. The limiting plates 342 press the colored paper onto the conveyor belt 33 through the ball bearings 3421. The conveyor belt 33 is used to transport the colored paper to the adhesive coating assembly 4.

[0036] Reference Figures 3-4 Each limiting plate 342 is positioned on the mounting plate 341 via a connector 343. The connector 343 is a connecting screw. This embodiment uses one connecting screw, one mounting plate 341, and one limiting plate 342 as an example: the connecting screw is vertically positioned, and a positioning piece 3431 is fixedly connected to the connecting screw along its axial direction. The lower end of the connecting screw passes through the mounting groove 3411 on the mounting plate 341, the positioning piece 3431 is pressed against the upper end of the mounting plate 341, and the lower end of the connecting screw is threaded onto the limiting plate 342, thereby positioning the limiting plate 342 below the mounting plate 341. By adjusting the position of the connecting screw in the mounting groove 3411, the lateral position of the limiting plate 342 relative to the conveyor belt 33 can be adjusted to accommodate colored paper of different widths.

[0037] Reference Figures 3-4 The first conveyor roller 31 is driven to rotate by the conveyor motor 35. The first conveyor roller 31 drives the conveyor belt 33 and the second conveyor roller 32 to rotate synchronously, thereby smoothly conveying the colored paper to the gluing assembly 4. There are three conveyor belts 33, and the lateral position of each conveyor belt 33 on the first conveyor roller 31 and the second conveyor roller 32 can be adjusted according to the actual width of the colored paper. The mounting plate 341 in the contact assembly 34 is fixed to the frame 1, and the limiting plate 342 is installed on the mounting plate 341 by the connecting screw. By adjusting the position of the connecting screw in the mounting groove 3411, the limiting plate 342 can be aligned with the conveyor belt 33 below. Each limiting plate 342 is rotatably connected to a row of ball bearings 3421 along its length. The ball bearings 3421 contact the upper surface of the colored paper, providing moderate downward pressure while allowing the colored paper to pass smoothly, thereby effectively preventing the colored paper from shifting or wrinkling during the conveying process and ensuring the flatness and stability of the conveying.

[0038] Reference Figure 1 , Figure 4 and Figure 5 The gluing assembly 4 includes a gluing drive motor 41, a gluing roller 42, a spreading roller 43, a glue outlet pipe 44, and a pressure roller 45. An adjustment mechanism 5 is also connected to the frame 1. The adjustment mechanism 5 includes an adjustment support frame 51, a pressure adjustment component 52, and a film thickness adjustment component 53. Two sets of adjustment mechanisms 5 are provided, respectively located on both sides of the long axis of the frame 1. In this embodiment, the pressure roller 45 is located below the gluing roller 42. The axis of the pressure roller 45 is parallel to the axis of the second conveying roller 32, and the axis of the gluing roller 42 is parallel to the axis of the pressure roller 45. The pressure roller 45 is rotatably connected to the frame 1. The pressure adjustment component 52 is used to adjust the distance between the gluing roller 42 and the pressure roller 45, thereby adapting to gluing of colored paper of different thicknesses. The glue-applying roller 42 and the glue-spreading roller 43 are both arranged between the two sets of adjustment mechanisms 5. The glue-applying roller 42 and the glue-spreading roller 43 are in close contact. The film thickness adjustment component 53 is used to adjust the bonding pressure between the glue-applying roller 42 and the glue-spreading roller 43.

[0039] Reference Figure 1 , Figure 4 and Figure 5 This embodiment uses one set of adjustment mechanisms 5 as an example for explanation. The pressing and adjusting assembly 52 includes a first adjusting screw 521 and a first adjusting block 522. The adjusting support frame 51 is vertically fixedly connected to the frame 1. The first adjusting block 522 is vertically slidably connected to the adjusting support frame 51. The first adjusting screw 521 is vertically rotatably connected to the adjusting support frame 51, and the lower end of the first adjusting screw 521 is threadedly connected to the first adjusting block 522. The end of the glue-applying roller 42 is rotatably connected to the first adjusting block 522. The glue-applying drive motor 41 is fixedly connected to the first adjusting block 522, and the output shaft of the glue-applying drive motor 41 is fixedly connected to the end of the glue-applying roller 42. By rotating the first adjusting screw 521, the first adjusting block 522 rises or falls on the adjusting support frame 51, thereby driving the glue-applying roller 42 to rise or fall, so as to adjust the distance between the glue-applying roller 42 and the pressing roller 45.

[0040] Reference Figure 1 , Figure 4 and Figure 5The film thickness adjustment assembly 53 includes a second adjusting screw 531 and a second adjusting block 532. The second adjusting block 532 is vertically slidably connected to the first adjusting block 522, and the second adjusting screw 531 is vertically rotatably connected to the first adjusting block 522. The lower end of the second adjusting screw 531 is threadedly connected to the second adjusting block 532. The end of the even-coating roller 43 is rotatably connected to the second adjusting block 532. The axis of the even-coating roller 43 is parallel to the axis of the coating roller 42. The even-coating roller 43 is located obliquely above the coating roller 42 and is also located between the second conveying roller 32 and the coating roller 42. The even-coating roller 43 is also in contact with the coating roller 42. By rotating the second adjusting screw 531, the second adjusting block 532 rises or falls on the first adjusting block 522, thereby driving the even-coating roller 43 to rise or fall, so as to adjust the bonding pressure between the even-coating roller 43 and the coating roller 42.

[0041] Reference Figure 1 , Figure 4 and Figure 5 The glue dispensing tube 44 is fixedly connected to the frame 1 and located above the glue coating roller 42. The axis of the glue dispensing tube 44 is parallel to the axis of the glue coating roller 42. A row of glue dripping tubes 441 are fixedly connected to the side wall of the glue dispensing tube 44 along its own axis. The glue in the glue dispensing tube 44 drips through the glue dripping tubes 441 onto the contact area between the glue coating roller 42 and the evenly applying roller 43. Each glue dripping tube 441 is equipped with an electrically controlled valve 4411. The purpose of this design is to flexibly open or close the corresponding number of glue dripping tubes 441 according to the actual width of the colored paper to be coated. Specifically, when processing colored paper with a larger width, more or even all of the glue dripping tubes 441 can be opened to ensure that the glue covers the required width; when processing colored paper with a smaller width, some glue dripping tubes 441 can be selectively closed to make the application of glue match the width of the paper, thereby effectively avoiding glue waste and contamination of non-working areas of the equipment.

[0042] Reference Figures 4-5 After the glue drips onto the bonding area between the glue-applying roller 42 and the glue-spreading roller 43, the glue-applying drive motor 41 drives the glue-applying roller 42 to rotate. The glue-applying roller 42 drives the glue-spreading roller 43 to rotate. The glue-applying roller 42 spreads the dripped glue evenly on the glue-applying roller 42, thereby forming a glue film on the glue-applying roller 42. When the bonding pressure between the glue-spreading roller 43 and the glue-applying roller 42 is large, the glue film is thinner. When the bonding pressure between the glue-spreading roller 43 and the glue-applying roller 42 is small, the glue film is thicker.

[0043] Reference Figures 4-5After the glue drips from the dispensing tube 441 onto the contact area between the coating roller 42 and the leveling roller 43, the glue-driving motor 41 starts, driving the coating roller 42 to rotate. Because the leveling roller 43 and the coating roller 42 are in close contact, the rotation of the coating roller 42 causes friction, driving the leveling roller 43 to rotate synchronously in the opposite direction. During this process, the dripping glue is drawn into the gap between the two rollers and, under the relative rotation and squeezing action of the coating roller 42 and the leveling roller 43, is evenly spread on the outer circumferential surface of the coating roller 42, thus forming a continuous and uniform glue film on the coating roller 42. The final thickness of the glue film can be precisely controlled by the glue film thickness adjustment component 53. Specifically, by rotating the second adjusting screw 531, the second adjusting block 532 and the leveling roller 43 mounted on the second adjusting block 532 are driven to move closer to or further away from the coating roller 42, thereby changing the bonding pressure between the two rollers. When the bonding pressure between the leveling roller 43 and the coating roller 42 increases, the squeezing effect of the roller gap on the adhesive is stronger, and the resulting adhesive film is thinner; conversely, when the bonding pressure between the leveling roller 43 and the coating roller 42 decreases, the resulting adhesive film is thicker accordingly.

[0044] Reference Figure 1 , Figure 4 and Figure 5 The anti-stick component 6 includes an anti-stick support rod 61 and an anti-stick removal blade 62. The anti-stick support rod 61 is fixedly connected to the frame 1 and located above the coating roller 42. Multiple anti-stick removal blades 62 are provided and are evenly arranged along the axial direction of the anti-stick support rod 61. This embodiment uses one anti-stick removal blade 62 as an example for explanation. The anti-stick removal blade 62 is vertically arranged and has a certain degree of curvature. The upper end of the anti-stick removal blade 62 is fixedly connected to the anti-stick support rod 61, and the lower end of the anti-stick removal blade 62 is close to the coating roller 42. The width of the anti-stick removal blade 62 is perpendicular to the axial direction of the coating roller 42. The blade with a specific curvature at the lower end of the anti-stick removal blade 62 is in line contact with the outer circumferential surface of the coating roller 42. When colored paper accidentally sticks to the coating roller 42 and rotates, the edge of the colored paper first contacts the tip of the anti-sticking blade 62. Then, as the coating roller 42 continues to rotate, the stuck paper is blocked by the anti-sticking blade 62 and is pried up along its own curved surface, thus completing a smooth, gradual and thorough peeling process. This effectively prevents the paper from sticking to the coating roller and ensures the continuity of production.

[0045] The implementation principle of the corrugated cardboard box color coating device in this application embodiment is as follows: The feeding mechanism 2, through the suction cylinder 252 and the moving cylinder 253 in conjunction with the suction cup 2521, picks up a single sheet of color paper and transfers it to the feeding assembly 26. The feeding drive motor 261 drives the feeding roller 262 to rotate, which, together with the feeding roller 232, clamps the color paper and feeds it into the conveying mechanism 3. The conveying motor 35 of the conveying mechanism 3 drives the first conveying roller 31 to drive the conveyor belt 33 to rotate, conveying the color paper to the coating assembly 4. During the conveying process, the limiting plate 342 of the contact assembly 34 presses the color paper with the ball bearings 3421 to prevent deviation.

[0046] The glue dispensing tube 44 drips glue onto the bonding area between the coating roller 42 and the leveling roller 43 via the dripping tube 441. The glue application drive motor 41 drives the coating roller 42 to rotate, and the friction causes the leveling roller 43 to rotate synchronously, so that the glue is evenly spread on the surface of the coating roller 42 to form a glue film. The thickness of the glue film is controlled by adjusting the bonding pressure between the leveling roller 43 and the coating roller 42 through the glue film thickness adjustment component 53. The coating roller 42 coats the colored paper surface above the pressure roller 45 with the glue film.

[0047] The anti-sticking component 6 has an anti-sticking blade 62 that adheres tightly to the surface of the coating roller 42. When the colored paper accidentally sticks to the coating roller 42, the anti-sticking blade 62 contacts and gradually pries up the colored paper through its blade, thus peeling it off.

[0048] This application achieves effective control of the adhesive film thickness by using the bonding design of the even-coating roller 43 and the coating roller 42, and by using the adhesive film thickness adjustment component 53 to control the pressure between the two rollers. This solves the problems of excessive adhesive film and adhesive waste in traditional methods. At the same time, the anti-sticking component 6's anti-sticking blade 62 can promptly peel off the colored paper that may stick to the surface of the coating roller 42, effectively avoiding production interruptions and ensuring the continuous operating efficiency of the equipment. In addition, the glue dispensing tube 441 with an independent electrically controlled valve 4411 on the glue dispensing tube 44 can precisely control the glue application area according to the width of the colored paper. Combined with the adjustment of the distance between the coating roller 42 and the pressure roller 45 by the pressure adjustment component 52, the overall adaptability of the device to different specifications of colored paper and the economy of the glue application operation are improved.

[0049] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A corrugated cardboard box color coating device, characterized in that: The system includes a frame (1), a glue application assembly (4), an adjustment mechanism (5), and an anti-sticking assembly (6). The glue application assembly (4) includes a glue application drive motor (41), a glue application roller (42), a glue spreading roller (43), a glue outlet pipe (44), and a pressure roller (45) mounted on the frame (1). The glue application drive motor (41) drives the glue application roller (42) to rotate. The glue spreading roller (43) is located on the side where the glue application roller (42) is wound with the colored paper, and the glue spreading roller (43) is in contact with the glue application roller (42). The pressure roller (45) is located below the glue application roller (42). The glue outlet tube (44) is located above the glue coating roller (42), and the glue outlet tube (44) is located above the contact point between the glue leveling roller (43) and the glue coating roller (42); the adjustment mechanism (5) is used to adjust the contact pressure between the glue leveling roller (43) and the glue coating roller (42); The anti-sticking component (6) includes an anti-sticking release knife (62), which is vertically mounted on the frame (1) and is also attached to one side wall of the colored paper rolled out by the coating roller (42).

2. The corrugated cardboard box color coating device according to claim 1, characterized in that: The adjustment mechanism (5) includes an adjustment support frame (51) and a pressing adjustment assembly (52). The adjustment support frame (51) is mounted on the frame (1). The pressing adjustment assembly (52) includes a first adjusting screw (521) and a first adjusting block (522). The first adjusting block (522) is mounted on the frame (1). The first adjusting screw (521) is mounted on the adjustment support frame (51). The first adjusting screw (521) is also threadedly connected to the first adjusting block (522). The glue-applying roller (42) is mounted on the first adjusting block (522). The first adjusting screw (521) is used to adjust the distance between the glue-applying roller (42) and the pressing roller (45).

3. The corrugated cardboard box color coating device according to claim 2, characterized in that: The adjustment mechanism (5) further includes a film thickness adjustment component (53), which includes a second adjustment screw (531) and a second adjustment block (532). The second adjustment block (532) is disposed on the first adjustment block (522), and the second adjustment screw (531) is disposed on the first adjustment block (522). The second adjustment screw (531) is also threadedly connected to the second adjustment block (532). The glue-spreading roller (43) is disposed on the second adjustment block (532). The second adjustment screw (531) is used to adjust the bonding pressure between the glue-spreading roller (43) and the glue-coating roller (42).

4. The corrugated cardboard box color coating device according to claim 1, characterized in that: The frame (1) is also provided with a conveying mechanism (3), which is located on one side of the glue application assembly (4). The conveying mechanism (3) includes a first conveying roller (31), a second conveying roller (32), a conveyor belt (33), a contact assembly (34), and a conveying motor (35). The first conveyor roller (31) and the second conveyor roller (32) are both mounted on the frame (1). The second conveyor roller (32) is located on one side of the glue coating roller (42). The conveyor motor (35) is mounted on the frame (1) and is used to drive the first conveyor roller (31) to rotate. The conveyor belt (33) is sleeved between the first conveyor roller (31) and the second conveyor roller (32), and the conveyor belt (33) is used to convey colored paper to the glue coating assembly (4); The contact component (34) is mounted on the frame (1) and is located above the conveyor belt (33); The contact component (34) is used to press the colored paper onto the conveyor belt (33).

5. The corrugated cardboard box color coating device according to claim 4, characterized in that: The contact component (34) includes a mounting plate (341), a limiting plate (342), and a ball bearing (3421). The mounting plate (341) is mounted on the frame (1) and is located above the conveyor belt (33). The limiting plate (342) is mounted on the mounting plate (341) and is located between the mounting plate (341) and the conveyor belt (33). The limiting plate (342) is provided with a ball bearing (3421), which is attached to the top surface of the colored paper.

6. The corrugated cardboard box color coating device according to claim 5, characterized in that: The abutment component (34) further includes a connector (343), which is a connecting screw. The connecting screw is disposed on the mounting plate (341) and is also threadedly connected to the limiting plate (342). The connecting screw is used to adjust the clamping force between the ball bearing (3421) and the colored paper.

7. The corrugated cardboard box color coating device according to claim 4, characterized in that: The frame (1) is also provided with a feeding mechanism (2), which includes a connecting rod (21), a connecting block (22), a support rod (23), a feeding roller (232), a tension spring (24), and a feeding assembly (26). The feeding assembly (26) includes a feeding roller (262) and a feeding drive motor (261). The feed roller (262) and the feed drive motor (261) are mounted on the frame (1). The feed drive motor (261) is used to drive the feed roller (262) to rotate. The feed roller (262) is mounted on one side of the first conveyor roller (31). The connecting rod (21) is mounted on the frame (1) and is located above the first conveying roller (31). The connecting block (22) is mounted on the connecting rod (21), and the support rod (23) is mounted on the connecting block (22) and is located above the feed roller (262). A bracket (231) is vertically mounted on the support rod (23), and the feeding roller (232) is located at the lower end of the bracket (231). The feeding roller (232) is in contact with the feeding roller (262). The tension spring (24) connects the support rod (23) to the frame (1).

8. The corrugated cardboard box color coating device according to claim 7, characterized in that: The feeding mechanism (2) further includes a feeding assembly (25), which includes a feeding support frame (251), a suction cylinder (252), and a moving cylinder (253). The feeding support frame (251) is mounted on the frame (1) and is located on one side of the feeding roller (262). The moving cylinder (253) is mounted on the feeding support frame (251), and the suction cylinder (252) is mounted on the piston rod of the moving cylinder (253). The piston rod of the suction cylinder (252) is provided with a suction cup (2521). The suction cylinder (252) is used to suck up the material, and the moving cylinder (253) is used to convey the material to the feed roller (262).

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