A roller coating device and roller coating method for color coated plate production

Abstract

The present application discloses a roller coating device for color-coated plate production and a roller coating method thereof, which belongs to the technical field of roller coating. The device comprises a frame, a cleaning roller, a coating roller and a driving device, wherein the frame comprises a coating frame, wherein a material storage box is arranged in the coating frame, wherein the material storage box has a liquid storage cavity with an upward opening, and wherein the liquid storage cavity is used to contain the coating. The roller coating device for color-coated plate production and the roller coating method thereof of the present application solve the technical problem that the traditional corrugated color-coated plate is roller-pressed after the color-coating is completed, and when the roller is roller-pressed on the color-coated plate, the paint surface of the color-coated plate is damaged, thereby affecting the color-coating effect.

Description

Technical Field

[0001] The present application relates to the technical field of roller coating, and in particular to a roller coating device and a roller coating method for producing color-coated plates. Background Art

[0002] In recent years, the production of color-coated sheets has developed rapidly. The United States, the European Union and Japan have the most color-coated sheet production lines, the largest production capacity and the most complete varieties and specifications. Color-coated sheets are now widely used in various industries such as construction, home appliances, and automobile manufacturing. With the growth of color-coated sheet consumption and the continuous expansion of its application areas, as well as the continuous improvement of users' requirements for its quality and performance, various new technologies for color-coated sheet production have been continuously developed and applied, and the varieties of color-coated sheets have gradually developed in the direction of diversification and specialization. In addition to being used in general buildings, automobile interior decoration, household appliances, office equipment, precision instruments, furniture, and leather products, water corrugated embossed color-coated sheets have also been expanded to commercial buildings, hotels, high-end entertainment venues, theaters, dance halls, concert halls, private rooms, and homes. They are now internationally popular high-end decorative materials for buildings.

[0003] The traditional corrugated color-coated plate is rolled after the color coating is completed. When the roller is rolled on the color-coated plate, the paint surface of the color-coated plate will be damaged, affecting the effect of the color coating. Therefore, it is necessary to provide a roller coating device and a roller coating method for color-coated plate production to solve the above problems. Summary of the invention

[0004] Based on the above problems existing in the prior art, the purpose of the present application is to provide a roller coating device and a roller coating method for color coated plate production to solve the problems raised in the above background technology.

[0005] The technical solution adopted by the present application to solve the technical problem is: a roller coating device for color-coated plate production and a roller coating method thereof, wherein the lower surface of the color-coated plate is provided with a plurality of protrusions spaced apart, comprising a frame, a cleaning roller, a coating roller and a driving device, wherein the frame includes a coating frame, wherein a material storage box is arranged in the coating frame, wherein the material storage box has a liquid storage cavity with an upward opening, and the liquid storage cavity is used to contain the coating;

[0006] The cleaning roller comprises a cleaning roller and a first shaft core unit which are fixedly arranged in sequence from the outside to the inside, the cleaning roller comprises a brush layer and a first deformation layer which are fixedly arranged in sequence from the outside to the inside, the brush layer, the first deformation layer and the first shaft core unit are all annular and are coaxially arranged with each other, the first shaft core unit is rotatably mounted on the frame, first annular baffles are fixedly connected to both sides of the first shaft core unit, and the first deformation layer is located between the two first annular baffles;

[0007] The coating roller is arranged between the cleaning roller and the liquid storage chamber, the coating roller comprises a coating roller cylinder and a second shaft core unit which are fixedly arranged in sequence from the outside to the inside, the coating roller comprises a liquid-wetting coating layer and a second deformation layer which are fixedly arranged in sequence from the outside to the inside, the liquid-wetting coating layer, the second deformation layer and the second shaft core unit are all annular and coaxially arranged with each other, the second shaft core unit is rotatably mounted on the frame, the second shaft core unit has second annular baffles fixedly connected on both sides, the second deformation layer is located between the two second annular baffles, and the bottom of the liquid-wetting coating layer is located below the coating liquid level in the liquid storage chamber;

[0008] The driving device is used to drive the cleaning roller and the coating roller to rotate synchronously. When the color-coated plate passes between the liquid coating layer and the brush layer, the second deformation layer is elastically deformed due to the pressure of the protrusion on the lower surface of the color-coated plate, so that the liquid coating layer fits the lower surface of the color-coated plate.

[0009] Furthermore, the frame includes a base, a magnetic device and a paint frame, the magnetic device is installed above the base, the paint frame is located on one side of the base and the magnetic device, the first axis core unit and the second axis core unit of the paint frame are rotatably installed on the paint frame of the frame, the cleaning roller is directly above the coating roller, and an adjustment device for adjusting the height of the cleaning roller is provided on the top of the paint frame, and the cleaning roller is installed in the adjustment device.

[0010] Further, the magnetic suction device includes a platform fixed above the base, columns are fixedly connected on both sides of the platform, a linear module is fixed on the columns on both sides of the platform, a first slide is fixed on the conveying end of the linear module, an output module is fixedly connected between the two first slides, the output end of the output module is fixedly connected to the second slide, a lifting device is arranged in the second slide, a suction cup is connected to the output end of the lifting device, the lifting device can be a cylinder, the cylinder body is fixedly connected to the second slide, the output end of the cylinder body is connected to the suction cup, and the suction cup is used to adsorb the upper surface of the color-coated plate after the color-coated plate passes through the coating roller;

[0011] The output end of the linear module is used to drive the output module to move in the front-to-back direction, the output end of the output module is used to drive the lifting device to move in the left-right direction, and the lifting device is used to drive the suction cup to move in the up-down direction.

[0012] Furthermore, a fan is fixed on the platform, and the fan is located below the color-coated plate adsorbed on the suction cup, and the fan is used to blow air flow toward the color-coated plate above.

[0013] Furthermore, a shaper is fixedly connected to the bottom of the platform near the coating frame, and the shaper includes a cylinder and a shaping block, and the shaping block is fixedly connected to the telescopic end of the cylinder, and the shaping block is located between the cylinder and the coating roller, and the surface of the shaping block near the coating roller is an arc surface, and a plurality of liquid collecting holes are opened on the arc surface, and the liquid collecting holes are connected to the reflux channel, and the reflux channel is located in the shaping block and has an opening at the bottom, and the cylinder is used to push the shaping block to move closer to or away from the coating roller;

[0014] The shaping block is made of polytetrafluoroethylene, the diameter of the arc surface is equal to the outer diameter of the coating roller, and when the cylinder pushes the shaping block until the arc surface fits the coating roller, the center of the arc surface coincides with the center of the coating roller.

[0015] Furthermore, the paint frame includes a raised frame and a material storage box, the material storage box is arranged in the paint frame, two mounting plates are fixedly connected to the top of the raised frame, the material storage box and the mounting plates are slidably connected, and the material storage box is located below the reflux channel.

[0016] Furthermore, the driving device includes a reduction box, a driving gear, a driven gear, a driving wheel, and a driven wheel;

[0017] The reduction box is fixed on the base, the input end of the reduction box is used to be fixedly connected to the input end of the motor, the output end of the reduction box is fixedly connected to the driving wheel, the driven wheel and the driving gear are both coaxially fixedly connected to the second shaft core unit, the driving wheel and the driven wheel are connected through a belt transmission, the driven gear is coaxially fixedly connected to the first shaft core unit, and the driving gear is meshed with the driven gear;

[0018] The second shaft core unit is fixedly connected to the coating roller, and the driving gear and the driven gear are fixedly connected to one end of the second shaft core unit.

[0019] Furthermore, the material of the first deformation layer is heat-conducting rubber, the first core unit includes a first metal layer, a first heating rod and a first center axis, the first center axis is coaxially fixedly connected to the first metal layer, the first heating rod is installed in the first metal layer and eccentrically arranged to the first center axis, and the first center axis is rotatably connected to the mounting plate.

[0020] Furthermore, the material of the second deformation layer is heat-conductive rubber, the second core unit includes a second metal layer, a second heating rod, and a second center axis, the second center axis is coaxially arranged with the second metal layer, the second heating rod is installed in the second metal layer and eccentrically arranged with the second center axis, the second center axis is rotatably connected to the mounting plate, the second metal layer is a metal material with heat-conductive properties, and the position of the second heating rod is arranged to be intermittently located below the liquid level in the liquid storage chamber when the coating roller rotates.

[0021] The present invention also provides a roller coating method for producing color-coated plates, which uses the above-mentioned roller coating device for producing color-coated plates to perform roller coating on the color-coated plates.

[0022] The beneficial effects of the present application are as follows: the present application provides a roller coating device and a roller coating method for the production of color-coated plates. By providing a second deformation layer, the coating roller can be deformed to better adapt to the corrugated plates of different shapes for coating. At the same time, by providing a second heating rod, the coating in the liquid storage chamber can be heated and the color-coated plates can be preheated for drying, thereby solving the technical problem that the traditional corrugated color-coated plates are rolled after the color coating is completed, and the paint surface of the color-coated plates will be damaged when the pressure roller rolls on the color-coated plates, thereby affecting the color coating effect.

[0023] In addition to the above-described purposes, features and advantages, the present application also has other purposes, features and advantages. The present application will be further described in detail with reference to the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The drawings constituting part of the present application are used to provide a further understanding of the present application. The exemplary embodiments and descriptions of the present application are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0025] Figure 1 It is an overall schematic diagram of this application;

[0026] Figure 2 This is a schematic diagram of the base and magnetic device of the present application;

[0027] Figure 3 A schematic diagram of one side of the coating frame of the present application;

[0028] Figure 4 A schematic diagram of the other side of the coating frame of this application;

[0029] Figure 5 This is an overall schematic diagram of the shaper of this application;

[0030] Figure 6 This is a schematic diagram of the internal cross-section of the shaping block of the present application;

[0031] Figure 7 This is an overall schematic diagram of the cleaning roller of the present application;

[0032] Figure 8 A schematic cross-sectional view of the cleaning roller of the present application;

[0033] Fig. 9 This is an overall schematic diagram of the coating roller of the present application;

[0034] Fig.10Schematic diagram of the cross section of the coating roller of this application

[0035] Fig.11 A schematic diagram of the position of the coating roller and the liquid surface during use of the present application;

[0036] Among them, the reference numerals in the figure are:

[0037] 1. Base; 101. Speed ​​reducer; 102. Driving wheel;

[0038] 2. Magnetic device; 201. Platform; 202. Fan; 203. Column; 204. Linear module; 205. First slide; 206. Output module; 207. Second slide; 208. Suction cup; 209. Shaper; 2091. Cylinder; 2092. Shaping block; 20921. Arc surface; 20922. Liquid collecting hole; 20923. Reflux channel;

[0039] 3. Paint frame; 301. Elevated frame; 302. Mounting plate; 303. Material storage box; 3031. Liquid storage chamber; 304. Driving gear; 305. Driven gear; 306. Driven wheel;

[0040] 4. Cleaning roller; 401. Cleaning roller; 4011. Brush layer; 4012. First deformation layer; 402. First shaft core unit; 4021. First metal layer; 4022. First heating rod; 4023. First central axis; 403. First annular baffle;

[0041] 5. Coating roller; 501. Coating roller; 5011. Liquid coating layer; 5012. Second deformation layer; 502. Second shaft core unit; 5021. Second metal layer; 5022. Second heating rod; 5023. Second central axis; 503. Second annular baffle;

[0042] 6. Color coated plate. DETAILED DESCRIPTION

[0043] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0044] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0045] like Figure 1-11As shown, the present application provides a technical solution: a roller coating device for color-coated plate production and a roller coating method thereof, including a frame and a driving device, the frame including a base 1, a magnetic device 2 and a coating frame 3, the magnetic device 2 is installed above the base 1, and is used to load, lift and transfer the color-coated plate 6 that has been roller coated, the coating frame 3 is located on one side of the base 1 and the magnetic device 2, and is mainly used to roller coat the substrate after pre-treatment, a cleaning roller 4 and a coating roller 5 are rotatably installed on the coating frame 3, the cleaning roller 4 is directly above the coating roller 5, and the coating roller 5 rolls the plate surface after absorbing the paint, and the driving device is tensionedly connected to the coating roller 5 through a belt to drive the rotation of the coating roller 5.

[0046] The magnetic suction device 2 includes a platform 201 fixed above the base 1, and columns 203 are fixedly connected on both sides of the platform 201. The columns 203 on both sides of the platform 201 are fixed with a linear module 204, and a first slide 205 is fixedly connected to the conveying end of the linear module 204. An output module 206 is fixedly connected between the two first slides 205, and the output end of the output module 206 is fixedly connected to a second slide 207. A lifting device is arranged in the second slide 207, and a suction cup 208 is connected to the output end of the lifting device. The lifting device can be a cylinder, and the cylinder body is fixedly connected to the second slide 207, and the output end of the cylinder body is connected to the suction cup 208. The suction cup 208 is used to adsorb the upper surface of the color-coated plate 6 after the color-coated plate 6 passes through the coating roller 5.

[0047] The output end of the linear module 204 is used to drive the output module 206 to move in the front-rear direction, the output end of the output module 206 is used to drive the lifting device to move in the left-right direction, and the lifting device is used to drive the suction cup 208 to move in the up-down direction.

[0048] A fan 202 is fixed on the platform 201 . The fan 202 is located below the color-coated plate 6 sucked by the suction cup 208 . The fan 202 is used to blow air toward the color-coated plate 6 above.

[0049] A shaper 209 is fixedly connected to the bottom of the platform 201 close to the paint frame 3. The shaper 209 includes a cylinder 2091 and a shaping block 2092. The shaping block 2092 is fixedly connected to the telescopic end of the cylinder 2091. The shaping block 2092 is located between the cylinder 2091 and the coating roller 5. The surface of the shaping block 2092 close to the coating roller 5 is an arcuate surface 20921. A plurality of liquid collecting holes 20922 are provided on the arcuate surface 20921. The liquid collecting holes 20922 are connected to a reflux channel 20923. The reflux channel 20923 is located in the shaping block 2092 and has an opening at the bottom. The cylinder 2091 is used to push the shaping block 2092 to move closer to or away from the coating roller 5.

[0050] The material of the shaping block 2092 is polytetrafluoroethylene, and the diameter of the arc surface 20921 is equal to the outer diameter of the coating roller 5. When the cylinder 2091 pushes the shaping block 2092 until the arc surface 20921 fits with the coating roller 5, the center of the arc surface 20921 coincides with the center of the coating roller 5. If they do not coincide, they can contact the surface of the coating roller 5 and achieve the corresponding effect.

[0051] The paint frame 3 includes a raised frame 301 and a material storage box 303. The material storage box 303 is arranged in the paint frame 3. The material storage box 303 has a liquid storage cavity 3031 with an upward opening. The liquid storage cavity 3031 is used to contain paint. Two mounting plates 302 are fixedly connected to the top of the raised frame 301. The material storage box 303 is slidably connected to the mounting plates 302. The material storage box 303 is located below the reflux channel 20923.

[0052] The cleaning roller 4 comprises a cleaning roller 401 and a first shaft core unit 402 which are fixedly arranged in sequence from the outside to the inside. The cleaning roller 401 comprises a brush layer 4011 and a first deformation layer 4012 which are fixedly arranged in sequence from the outside to the inside. The brush layer 4011, the first deformation layer 4012 and the first shaft core unit 402 are all annular and are coaxially arranged with each other. The first shaft core unit 402 is rotatably mounted on the frame. First annular baffles 403 are fixedly connected to both sides of the first shaft core unit 402. The first deformation layer 4012 is provided with a plurality of first annular baffles 403. 12 is located between the two first annular baffles 403, the outer peripheral wall of the first annular baffle 403 is consistent in diameter and concentric with the outer peripheral wall of the cleaning roller 401, the first annular baffle 403 can prevent the first deformation layer 4012 from being squeezed to both sides, and the first deformation layer 4012 is provided with at least two circles of small hole groups distributed in sequence from the inside to the outside along the radial direction of the first deformation layer 4012, each circle of small hole groups includes a plurality of small holes distributed at intervals along the circumferential direction of the first deformation layer 4012, and the small holes in two adjacent circles of small hole groups are staggered.

[0053] The material of the first deformation layer 4012 is heat-conducting rubber. The first axis core unit 402 includes a first metal layer 4021, a first heating rod 4022 and a first center axis 4023. The first center axis 4023 is coaxially fixedly connected to the first metal layer 4021. The first heating rod 4022 is installed in the first metal layer 4021 and is eccentrically arranged to the first center axis 4023. The first center axis 4023 is rotatably connected to the mounting plate 302.

[0054] The coating roller 5 is arranged between the cleaning roller 4 and the liquid storage chamber 3031. The coating roller 5 includes a coating roller 501 and a second shaft core unit 502 which are fixedly arranged from the outside to the inside. The coating roller 501 includes a liquid-wetting coating layer 5011 and a second deformation layer 5012 which are fixedly arranged from the outside to the inside. The liquid-wetting coating layer 5011, the second deformation layer 5012 and the second shaft core unit 502 are all annular and are coaxially arranged with each other. The second shaft core unit 502 is rotatably installed on the frame. The second shaft core unit 502 is fixedly connected with second annular baffles 503 on both sides. The second deformation layer 5012 Located between the two second annular baffles 503, the outer peripheral wall of the second annular baffle 503 is consistent in diameter and concentric with the outer peripheral wall of the coating roller 501, and the second annular baffle 503 can prevent the second deformation layer 5012 from being squeezed to both sides. The second deformation layer 5012 is provided with at least two circles of small hole groups distributed in sequence from the inside to the outside along the radial direction of the second deformation layer 5012, and each circle of small hole groups includes a plurality of small holes distributed at intervals along the circumferential direction of the second deformation layer 5012, and the small holes in two adjacent circles of small hole groups are staggered. The bottom of the liquid-wetting coating layer 5011 is located below the coating liquid level in the liquid storage chamber 3031.

[0055] The material of the second deformation layer 5012 is heat-conducting rubber, the second core unit 502 includes a second metal layer 5021, a second heating rod 5022, and a second center axis 5023, the second center axis 5023 is coaxially arranged with the second metal layer 5021, the second heating rod 5022 is installed in the second metal layer 5021, and is eccentrically arranged with the second center axis 5023, the second center axis 5023 is rotatably connected with the mounting plate 302, the second metal layer 5021 is a metal material with heat-conducting properties, and the position of the second heating rod 5022 is arranged to be intermittently located below the liquid level in the liquid storage chamber 3031 when the coating roller 5 rotates.

[0056] The driving device includes a reduction box 101 , a driving gear 304 , a driven gear 305 , a driving wheel 102 , and a driven wheel 306 .

[0057] The reduction box 101 is fixed on the base 1, the input end of the reduction box 101 is used to be fixedly connected to the input end of the motor, the output end of the reduction box 101 is fixedly connected to the driving wheel 102, the driven wheel 306 and the driving gear 304 are both coaxially fixedly connected to the second shaft core unit 502, the driving wheel 102 and the driven wheel 306 are connected by belt transmission, the driven gear 305 is coaxially fixedly connected to the first shaft core unit 402, and the driving gear 304 and the driven gear 305 are meshed.

[0058] The second shaft core unit 502 is fixedly connected to the coating roller 501 , and the driving gear 304 and the driven gear 306 are fixedly connected to one end of the second shaft core unit 502 .

[0059] Embodiment 1: Roller coating method and working principle of the device

[0060] Step 1: Debug equipment and prepare for the work

[0061] Specifically, the control center controls the linear module 204 to rotate, so that the first slide 205 approaches the coating frame 3, and then controls the output module 206 to rotate, so that the second slide 207 is located in the middle of the cleaning roller 4, and the control center controls the lifting device in the second slide 207 to descend, so that the suction cup 208 is flush with the cleaning roller 4. Paint is added to the liquid storage chamber 3031 until it contacts the liquid coating layer 5011 on the coating roller 5. At this time, the control center starts the driving device in the reduction box 101, the driving wheel 102 rotates, and the driven wheel 306 is driven to rotate through the belt, so that the coating roller 5 starts to rotate, and the surface of the liquid coating layer 5011 is covered with paint after the coating roller 5 rotates one circle.

[0062] The rotation of the coating roller 5 drives the driving gear 304 to rotate, and the driven gear 305 meshing with the driving gear 304 also rotates, driving the cleaning roller 4 to rotate.

[0063] Step 2: Send the required color-coated corrugated board into the device for color coating

[0064] Specifically, the plate to be colored is inserted between the cleaning roller 4 and the coating roller 5. The plate automatically moves forward due to the friction generated by the rotation of the cleaning roller 4 and the coating roller 5. The liquid coating layer 5011 on the coating roller 501 coats the bottom of the corrugated plate. Fig.11 As shown, since the plate is corrugated and has an uneven surface, when entering between the cleaning roller 4 and the coating roller 5, the second deformation layer 5012 is affected by the unevenness of the corrugated plate and deforms, so that the liquid coating layer 5011 fits the corrugated plate more closely, ensuring a uniform coating effect. The upper and lower cleaning rollers 4 and coating rollers 5 are driven simultaneously, reducing the resistance encountered by the corrugated plate during coating. The brush layer 4011 on the cleaning roller 401 can roll and brush the top surface of the corrugated plate to absorb some dust, thereby cleaning the surface of the corrugated plate.

[0065] The cylinder 2091 is started by the control center, and the cylinder 2091 pushes the shaping block 2092 out until it contacts the coating roller 5. After the second deformation layer 5012 on the coating roller 5 contacts the arc surface 20921 tangentially, the second deformation layer 5012 and the liquid coating layer 5011 rotate on the arc surface 20921 through the rotation of the coating roller 5. Under the compression of the arc surface 20921, the second deformation layer 5012 can be reset in time and become annular, so as to facilitate the subsequent coating. At the same time, after the liquid coating layer 5011 contacts the liquid collecting hole 20922, the liquid on the liquid coating layer 5011 can flow from the liquid collecting hole 20922 into the reflux channel 20923, and then drip into the liquid storage chamber 3031, so as to recover the coating on the liquid coating layer 5011. At the same time, the extension and retraction time of the cylinder 2091 can be set by the control center to cooperate with the coating roller 5 for shaping.

[0066] Step 3: Turn on the fan 202 to accelerate the drying of the paint on the corrugated plate

[0067] Specifically, when the coated corrugated plate comes out from between the cleaning roller 4 and the coating roller 5, the suction cup 208 sucks the corrugated plate, and at the same time, the rotation speed of the linear module 204 is controlled by the control center, so that the moving speed of the first slide 205 is consistent with the speed of the corrugated plate. The fan 202 is controlled by the control center to accelerate the drying of the paint on the bottom surface of the corrugated plate. At the same time, since the corrugated plate is in a concave-convex shape as a whole, the contact area with the suction cup 208 is small, resulting in a smaller suction force of the suction cup 208 on the corrugated plate. At this time, the wind force blown by the fan 202 can lift the corrugated plate, reducing the possibility of the corrugated plate falling.

[0068] Embodiment 2: After color coating is completed, the color coated plate 6 needs to be dried. The first heating rod 4022 and the second heating rod 5022 can be used to preheat the color coated plate 6 in advance.

[0069] Specifically, when the cleaning roller 4 and the coating roller 5 rotate, the first heating rod 4022 and the second heating rod 5022 are turned on through the control center. At this time, the first heating rod 4022 and the second heating rod 5022 generate heat, so that the first metal layer 4021 and the second metal layer 5021 also generate heat. Since the first deformation layer 4012 and the second deformation layer 5012 are heat-conducting materials, the first deformation layer 4012 and the second deformation layer 5012 also generate heat. At this moment, when the corrugated plate enters between the cleaning roller 4 and the coating roller 5, it contacts the first deformation layer 4012 and the second deformation layer 5012, and the heat will be conducted to the corrugated plate, so that the temperature of the corrugated plate rises, and the corrugated plate is preheated in advance.

[0070] In cold weather, the temperature of the paint in the liquid storage chamber 3031 is reduced due to the low temperature, affecting the coating effect, and even causing the paint to freeze in extremely cold conditions. At this time, the paint in the storage box 303 can be added to make the liquid level reach the same height as the second metal layer 5021. At this time, the bottom of the second deformation layer 5012 is in contact with the paint, and the temperature of the paint is made higher by heating by the second heating rod 5022, so that the corrugated plate can be better coated.

[0071] It should be noted that when the fan 202 air-dries the color-coated corrugated board, a small amount of heat on the corrugated board will be taken away. The fan 202 can be replaced with a blower that blows hot air to solve this problem.

[0072] In summary, the device is provided with a second deformation layer 5012, which can cause the coating roller 5 to deform and better adapt to the corrugated plates of different shapes for coating. At the same time, the second heating rod 5022 can heat the paint in the liquid storage chamber 3031 and preheat the drying of the color-coated plate 6, thereby solving the technical problem that the traditional corrugated color-coated plate is to roll the color-coated plate after the color coating is completed, and the paint surface of the color-coated plate will be damaged when the pressure roller rolls the color-coated plate, thereby affecting the color coating effect.

[0073] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A roller coating device for producing color-coated plates, wherein the lower surface of the color-coated plate (6) is provided with a plurality of protrusions spaced apart from each other, the roller coating device comprising a frame, a cleaning roller (4), a coating roller (5) and a driving device, characterized in that: The frame comprises a paint frame (3), a material storage box (303) is arranged in the paint frame (3), the material storage box (303) has a liquid storage cavity (3031) with an opening facing upwards, and the liquid storage cavity (3031) is used to contain paint; The cleaning roller (4) comprises a cleaning roller (401) and a first shaft core unit (402) which are fixedly arranged in sequence from the outside to the inside; the cleaning roller (401) comprises a brush layer (4011) and a first deformation layer (4012) which are fixedly arranged in sequence from the outside to the inside; the brush layer (4011), the first deformation layer (4012) and the first shaft core unit (402) are all annular and are coaxially arranged with each other; the first shaft core unit (402) is rotatably mounted on a frame; first annular baffles (403) are fixedly connected to both sides of the first shaft core unit (402); and the first deformation layer (4012) is located between two first annular baffles (403); The coating roller (5) is arranged between the cleaning roller (4) and the liquid storage chamber (3031), the coating roller (5) comprises a coating roller (501) and a second shaft core unit (502) which are fixedly arranged in sequence from the outside to the inside, the coating roller (501) comprises a liquid-wetting coating layer (5011) and a second deformation layer (5012) which are fixedly arranged in sequence from the outside to the inside, the liquid-wetting coating layer (5011), the second deformation layer (5012) and the second shaft core unit (502) are all annular and are coaxially arranged with each other, the second shaft core unit (502) is rotatably mounted on the frame, the second shaft core unit (502) is fixedly connected to the second annular baffles (503) on both sides, the second deformation layer (5012) is located between the two second annular baffles (503), and the bottom of the liquid-wetting coating layer (5011) is located below the coating liquid level in the liquid storage chamber (3031); The driving device is used to drive the cleaning roller (4) and the coating roller (5) to rotate synchronously, and when the color-coated plate passes between the liquid coating layer (5011) and the brush layer (4011), the second deformation layer (5012) is elastically deformed due to the pressure of the protrusions on the lower surface of the color-coated plate, so that the liquid coating layer (5011) and the lower surface of the color-coated plate are attached; The shaper (209) comprises a cylinder (2091) and a shaping block (2092); a surface of the shaping block (2092) on one side close to the coating roller (5) is an arcuate surface (20921); a plurality of liquid collecting holes (20922) are provided on the arcuate surface (20921); the liquid collecting holes (20922) are connected to a reflux channel (20923); the reflux channel (20923) is located in the shaping block (2092) and has an opening at the bottom; the cylinder (2091) is used to push the shaping block (2092) to move closer to or away from the coating roller (5); When the cylinder (2091) pushes the shaping block (2092) until the arc surface (20921) is in contact with the coating roller (5), the center of the arc surface (20921) coincides with the center of the coating roller (5); The coating roller (5) rotates to cause the liquid-wetting coating layer (5011) to rotate on the arc surface (20921). The second deformation layer (5012) is reset due to the squeezing of the arc surface (20921). The liquid on the liquid-wetting coating layer (5011) can flow from the liquid collecting hole (20922) into the reflux channel (20923), thereby dripping into the liquid storage chamber (3031).

2. A roller coating device for color coated plate production according to claim 1, characterized in that: The frame comprises a base (1), a magnetic device (2) and a paint frame (3); the magnetic device (2) is mounted above the base (1); the paint frame (3) is located on one side of the base (1) and the magnetic device (2); the first shaft core unit (402) and the second shaft core unit (502) of the paint frame are rotatably mounted on the paint frame (3) of the frame; the cleaning roller (4) is directly above the coating roller (5); an adjusting device for adjusting the height of the cleaning roller (4) is arranged on the top of the paint frame (3); and the cleaning roller (4) is mounted in the adjusting device.

3. The roller coating device for color-coated plate production according to claim 2 is characterized in that: The magnetic attraction device (2) comprises a platform (201) fixed above the base (1), columns (203) are fixedly connected on both sides of the platform (201), a linear module (204) is fixedly connected to the columns (203) on both sides of the platform (201), a first slide (205) is fixedly connected to the conveying end of the linear module (204), an output module (206) is fixedly connected between two of the first slides (205), and the output end of the output module (206) is fixedly connected to a second slide (207). A lifting device is arranged inside the second slide seat (207), and a suction cup (208) is connected to the output end of the lifting device. The suction cup (208) is used to absorb the upper surface of the color-coated plate (6) after the color-coated plate (6) passes through the coating roller (5); the output end of the linear module (204) is used to drive the output module (206) to move in the front-to-back direction, the output end of the output module (206) is used to drive the lifting device to move in the left-to-right direction, and the lifting device is used to drive the suction cup (208) to move in the up-down direction.

4. A roller coating device for color-coated plate production according to claim 3, characterized in that: A fan (202) is fixed on the platform (201), and the fan (202) is located below the color-coated plate (6) adsorbed on the suction cup (208). The fan (202) is used to blow airflow toward the color-coated plate (6) above.

5. The roller coating device for color-coated plate production according to claim 3 is characterized in that: A shaper (209) is fixedly connected to the bottom of one side of the platform (201) close to the coating frame (3); the shaping block (2092) is fixedly connected to the telescopic end of the cylinder (2091); the shaping block (2092) is located between the cylinder (2091) and the coating roller (5); the shaping block (2092) is made of polytetrafluoroethylene; the diameter of the arc surface (20921) is equal to the outer diameter of the coating roller (5).

6. The roller coating device for color-coated plate production according to claim 2, characterized in that: The paint frame (3) comprises a raised frame (301) and a material storage box (303); the material storage box (303) is arranged in the paint frame (3); two mounting plates (302) are fixedly connected to the top of the raised frame (301); the material storage box (303) is slidably connected to the mounting plates (302); and the material storage box (303) is located below the reflux channel (20923).

7. The roller coating device for color-coated plate production according to claim 1 is characterized in that: The driving device comprises a reduction box (101), a driving gear (304), a driven gear (305), a driving wheel (102), and a driven wheel (306); the reduction box (101) is fixed on the base (1); the input end of the reduction box (101) is used to be fixedly connected to the input end of the motor; the output end of the reduction box (101) is fixedly connected to the driving wheel (102); the driven wheel (306) and the driving gear (304) are both connected to the second shaft core unit (5 02) are coaxially fixedly connected, the driving wheel (102) and the driven wheel (306) are connected via a belt drive, the driven gear (305) and the first shaft core unit (402) are coaxially fixedly connected, and the driving gear (304) and the driven gear (305) are meshed; the second shaft core unit (502) is fixedly connected to the coating roller (501), and the driving gear (304) and the driven wheel (306) are fixedly connected to one end of the second shaft core unit (502).

8. The roller coating device for color-coated plate production according to claim 1, characterized in that: The material of the first deformation layer (4012) is heat-conducting rubber. The first axis core unit (402) comprises a first metal layer (4021), a first heating rod (4022) and a first central axis (4023). The first central axis (4023) is coaxially fixedly connected to the first metal layer (4021). The first heating rod (4022) is installed in the first metal layer (4021) and is eccentrically arranged with respect to the first central axis (4023). The first central axis (4023) is rotatably connected to the mounting plate (302).

9. The roller coating device for color-coated plate production according to claim 1, characterized in that: The material of the second deformation layer (5012) is heat-conducting rubber. The second shaft core unit (502) comprises a second metal layer (5021), a second heating rod (5022), and a second center axis (5023). The second center axis (5023) is coaxially arranged with the second metal layer (5021). The second heating rod (5022) is installed in the second metal layer (5021) and is eccentrically arranged with respect to the second center axis (5023). The second center axis (5023) is rotatably connected with the mounting plate (302). The second metal layer (5021) is a metal material with heat-conducting properties. The position of the second heating rod (5022) is arranged to be intermittently located below the liquid level in the liquid storage chamber (3031) when the coating roller (5) rotates.

10. A roller coating method for producing color coated plates, characterized in that: The color-coated plate is roller-coated using a roller coating device for color-coated plate production as described in any one of claims 1 to 9.

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