A coating device for a color-coated decorative sheet and a method thereof, which facilitates replacement of a primer

Abstract

The application discloses a kind of color-coated decorative plate painting devices convenient to replace primer, belong to color-coated decorative plate technical field, including support frame, the middle part of support frame is connected with primer feeding and discharging assembly;The support frame on the upper side of the right end of primer feeding and discharging assembly is connected with adjustable coating roller assembly;The adjustable coating roller assembly includes drive roller assembly, material conveying spacing adjusting assembly and coating spacing adjusting assembly, the support frame on the upper side of the right end of primer feeding and discharging assembly is connected with drive roller assembly, the front and rear ends of drive roller assembly are connected with coating spacing adjusting assembly, material conveying spacing adjusting assembly is connected on coating spacing adjusting assembly, adjust material conveying spacing by material conveying spacing adjusting assembly, adjust coating spacing by coating spacing adjusting assembly, when adjustment is completed, start drive roller assembly, drive roller assembly is painted to plate, by primer feeding and discharging assembly drive primer holding device to push out, to facilitate replacing primer.

Description

Technical Field

[0001] This invention relates to the field of color-coated decorative panels, and more specifically to a color-coated decorative panel application device and method that facilitates the replacement of primer. Background Technology

[0002] Color-coated steel sheets, also known as coated steel sheets, are made by applying various coatings or films to the edges of metal sheets as a substrate. Depending on the coating used, color-coated steel sheets can have properties such as high temperature resistance, self-extinguishing, and sterilization, which makes them widely used. When applying coatings to color-coated steel sheets, methods such as roller coating, spraying, powder coating, lamination, and printing are commonly used. Among these, roller coating is widely used because of its fast production speed and ability to continuously coat colors.

[0003] For example, Chinese patent CN219804867U proposes a roller coating machine for uniformly coating primer in the production of color-coated aluminum sheets. By setting limit baffles, top blocks and outer frames, when it is necessary to support the constant temperature refrigerator body, limit baffles are set at both ends of the feed inlet at the front end of the primer roller. The upper pressure plate and the limit baffles are fixedly connected. The top block is installed on the top of the feeding area. After the side part set at the bottom of the upper pressure plate is inserted into the groove of the top block, the outer frame is fitted over the outside of the top block, so that the overall structure of the limit baffle can be installed and the sheet material is limited.

[0004] However, the aforementioned patent maintains a constant spacing between rollers during color coating, limiting its application to color-coated sheets of specific thicknesses. When applying different primers, the varying viscosity of the primers necessitates different spacings between the dipping roller and the transfer roller, as well as between the transfer roller and the color-coated sheet. This necessitates separate adjustments for each roller, as the patent does not allow for individual adjustment of the spacing between rollers, potentially affecting the coating quality of the color-coated sheet.

[0005] Based on this, the present invention designs a color-coated decorative panel application device and method that facilitates the replacement of primer to solve the above problems. Summary of the Invention

[0006] In view of the above-mentioned shortcomings of the prior art, the present invention provides a color-coated decorative panel application device and method that facilitates the replacement of primer.

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] A device for applying color-coated decorative panels that facilitates the replacement of primer, including a support frame;

[0009] The middle part of the support frame is connected to a primer loading and unloading assembly for automatically taking out and feeding the primer.

[0010] An adjustable paint roller assembly is connected to the support frame on the upper right side of the primer loading and unloading assembly. This assembly can adjust the spacing between the rollers according to the thickness of the color-coated steel sheet.

[0011] The adjustable coating roller assembly includes a drive roller assembly, a material transfer spacing adjustment assembly, and a coating spacing adjustment assembly. The drive roller assembly is connected to the support frame on the upper right side of the primer loading and unloading assembly. The front and rear ends of the drive roller assembly are connected to the coating spacing adjustment assembly. The material transfer spacing adjustment assembly is connected to the coating spacing adjustment assembly. The front and rear ends of the material transfer spacing adjustment assembly are respectively connected to the front and rear inner walls of the support frame.

[0012] Furthermore, the drive roller assembly includes a first motor, a dipping roller, a transmission assembly, a feeding roller, and a paint roller. The first motor is fixedly connected to the front side wall of the support frame. The output end of the first motor passes through the front side wall of the support frame and is fixedly connected to the dipping roller. The feeding roller is rotatably connected between the front and rear side walls of the support frame to the right of the dipping roller. The front ends of the feeding roller and the dipping roller are connected by a transmission assembly. The paint roller is fixedly connected to the paint spacing adjustment assembly above the dipping roller and the feeding roller.

[0013] Furthermore, the material transfer spacing adjustment assembly includes an adjustment slider, an adjustment rail, a threaded rod, a linkage rotating rod, a movable bevel gear, a connecting rod, and a limiting rotating block. The front end of the paint roller is fixedly connected to the adjustment slider, and the front end of the adjustment slider is slidably connected to the adjustment rail. The threaded rod passes through the adjustment slider and is threadedly connected to the adjustment slider. Both ends of the threaded rod are rotatably connected to the adjustment rail, and one end of the threaded rod passes through the adjustment rail. A limiting rotating block is rotatably connected to the inner wall of the support frame at the rear end of the dipping roller. The end of the dipping roller near the limiting rotating block is rotatably connected to the limiting rotating block. A linkage rotating rod is rotatably connected to the side wall of the limiting rotating block near the paint roller. The linkage rotating rod and the end of the dipping roller near the limiting rotating block are connected by bevel gear meshing. A movable bevel gear is slidably connected to the middle of the linkage rotating rod. The rotating shaft of the connecting rod passes through the connecting rod and is rotatably connected to the connecting rod. The paint roller passes through the connecting rod and is rotatably connected to the connecting rod. The movable bevel gear is connected to the paint roller by bevel gear meshing.

[0014] Furthermore, the coating spacing adjustment assembly includes a cylinder, a limiting slide, an arc-shaped slide groove, a limiting slide rod, a rotating slider, and an arc-shaped slide rail. Two sets of concentric threaded rods are provided on the side wall of the support frame in front of the adjusting slide rail. Two sets of limiting slide rods are fixedly connected to the front side wall of the adjusting slide rail. One set of cylinders passes through one set of arc-shaped slide grooves and is slidably connected to the arc-shaped slide grooves. The other set of cylinders is inserted into the other set of arc-shaped slide grooves and is slidably connected to the arc-shaped slide grooves. The front end of the cylinder passing through the arc-shaped slide groove passes through the limiting slide and is slidably connected to the limiting slide. The limiting slide is slidably connected to the front side wall of the support frame through the slider slide rail. A cylinder is fixedly connected to the side wall of the support frame below the limiting slide. The output end of the cylinder is fixedly connected to the bottom of the limiting slide. The end of the linkage rotating rod away from the limiting rotating block is rotatably connected to the rotating slider. The rear end of the rotating slider is slidably connected to the arc-shaped slide rail. The rear end of the arc-shaped slide rail is fixedly connected to the rear inner wall of the support frame.

[0015] Furthermore, a slider is fixedly connected to the outer wall of the linkage rod, and a groove is provided on the inner wall of the movable bevel gear. The movable bevel gear and the linkage rod are connected by the slider through the groove for limiting sliding connection.

[0016] Furthermore, the primer loading and unloading assembly includes a second motor, a rotating rod, a limiting rotating plate, a limiting slider, a primer tank, and a U-shaped slide. The second motor is fixedly connected to the rear side wall of the support frame. The output end of the second motor passes through the rear side wall of the support frame and is fixedly connected to the rotating rod. The front end of the rotating rod is rotatably connected to the front inner wall of the support frame. A set of U-shaped slides is provided on both the front and rear side walls of the support frame below the rotating rod. A set of limiting rotating plates is fixedly connected to both the front and rear ends of the rotating rod. A limiting slide is provided in the middle of the limiting rotating plate. There is a primer tank between the two sets of limiting sliders. Limiting sliders are fixedly connected to both the front and rear side walls of the primer tank. The limiting sliders pass through a set of limiting rotating plates and a set of U-shaped slides that are close to each other. The limiting sliders are slidably connected to the limiting rotating plates and the U-shaped slides.

[0017] Furthermore, the limiting slider inside the upper limiting groove of the limiting plate is cylindrical, while the limiting slider inside the U-shaped groove is square.

[0018] To better achieve the objectives of this invention, the present invention also provides a method for using a color-coated decorative panel coating device that facilitates the replacement of primer, comprising the following steps:

[0019] Step 1: When it is necessary to coat the color-coated sheet, start the cylinder. The cylinder output end drives the limit slide to move upward. The limit slide drives the limit slide rod to move upward. The two sets of limit slide rods rotate around the dipping roller under the limiting guidance of the two sets of arc-shaped slide grooves. At this time, the limit slide rod drives the paint roller to rotate around the dipping roller through the adjusting slide rail and adjusting slider. The paint roller drives the linkage rotating rod to rotate around the dipping roller through the driving connecting rod. The linkage rotating rod drives the rotating slider and the limit rotating block to rotate. The rotating slider rotates under the limiting guidance of the arc-shaped slide rail, so that the dipping roller moves away from the feeding roller. At this time, the color-coated sheet is passed around the feeding roller. Since the paint roller is away from the feeding roller;

[0020] Step Two: Rotate the threaded rod. The threaded rod drives the adjusting slider to move along the threaded rod direction under the limit guide of the adjusting slide rail. This causes the adjusting slider to move the paint roller away from or towards the dipping roller. The adjustment of the distance between the paint roller and the dipping roller and the distance between the paint roller and the feeding roller do not affect each other. When the paint roller moves away from or towards the dipping roller, the paint roller drives the movable bevel gear to slide on the linkage rod through the connecting rod. When the adjustment is complete, start the cylinder. The cylinder drives the limit slide to move downward. The limit slide drives the paint roller to rotate around the dipping roller through the limit slide rod, thus ensuring that the distance between the paint roller and the dipping roller does not change. The coating roller rotates towards the feeding roller. When the coating roller contacts and squeezes the color-coated plate, the cylinder stops running. At this time, the first motor is started. The first motor drives the dipping roller to rotate. The dipping roller drives the feeding roller to rotate through the transmission assembly. The rotation of the dipping roller drives the linkage rod to rotate under the limit of the limit block and the rotating slider through the bevel gear. Since the linkage rod is slidably connected to the movable bevel gear, the linkage rod drives the movable bevel gear to rotate. The movable bevel gear drives the coating roller to rotate under the limit of the connecting rod through the bevel gear. When the coating roller drives the connecting rod and the movable bevel gear to slide on the linkage rod, the dipping roller drives the coating roller to rotate through the linkage rod.

[0021] Step 3: When the primer needs to be replaced, start the second motor. The output of the second motor drives the rotating rod to rotate, which in turn drives two sets of limiting plates to rotate. The limiting plates drive the limiting slider to slide inside the U-shaped groove under the limiting guidance. At this time, the limiting slider drives the primer tank to move along the trajectory of the U-shaped groove, so that the primer tank moves down first, then to the left, and finally up. When the replacement is completed, start the second motor. The second motor drives the limiting slider and the primer tank to move below the dipping roller through the limiting plates. At this time, the dipping roller dips the primer in the primer tank. When the primer level inside the primer tank drops, start the second motor. The second motor drives the primer tank to move upward, so that the depth of the dipping roller in the primer remains unchanged.

[0022] The present invention has the following technical effects:

[0023] When the color-coated sheet needs to be coated, the cylinder is activated. The cylinder output drives the limiting slide to move upward, which in turn drives the limiting slide rods to move upward. The two sets of limiting slide rods rotate around the dipping roller under the limiting guidance of two sets of arc-shaped sliding grooves. At this time, the limiting slide rods drive the paint roller to rotate around the dipping roller via the adjusting slide rail and adjusting slider. The paint roller, through the driving connecting rod, drives the linkage rotating rod to rotate around the dipping roller. The linkage rotating rod drives the rotating slider and the limiting rotating block to rotate. The rotating slider rotates under the limiting guidance of the arc-shaped slide rail, thereby causing the dipping roller to move away from the feeding roller. At this point, the color-coated sheet is moved around the feeding roller. Because the paint roller is far from the feed roller, the introduction of the color-coated sheet is simpler and more convenient. At this point, rotating the threaded rod causes the adjusting slider to move along the threaded rod direction under the limit guidance of the adjusting slide rail. This causes the adjusting slider to move the paint roller away from or closer to the dip roller, thus adjusting the distance between the paint roller and the dip roller. Since the distance adjustment between the paint roller and the dip roller and the distance adjustment between the paint roller and the feed roller are independent of each other, the spacing can be adjusted arbitrarily and can simultaneously accommodate color-coated sheets of any thickness and any primer. When the paint roller moves away from... When the paint roller moves towards the dipping roller, it drives the movable bevel gear to slide on the linkage rod via the connecting rod. When the adjustment is complete, the cylinder is activated, which drives the limit slide to move downwards. The limit slide drives the paint roller to rotate around the dipping roller via the limit slide rod, thus keeping the distance between the paint roller and the dipping roller constant. The paint roller rotates towards the feeding roller. When the paint roller contacts and presses the color-coated sheet, the cylinder stops. At this point, the installation of the color-coated sheet and the adjustment of the distance between each roller are completed. Then, the first motor is activated, which drives the dipping roller to rotate. The dipping roller drives the feeding roller via the transmission assembly. The rollers rotate, and the dipping roller rotates via a bevel gear, driving a linkage rod to rotate under the limits of a limiting block and a rotating slider. Because the linkage rod is slidably connected to the movable bevel gear, the linkage rod drives the movable bevel gear to rotate. The movable bevel gear, in turn, drives the paint roller to rotate within the limit of the connecting rod. This ensures that when the paint roller drives the connecting rod and the movable bevel gear to slide on the linkage rod, it does not affect the rotation of the dipping roller via the linkage rod. This achieves synchronous rotation of the dipping roller, feeding roller, and paint roller with only one set of primary motors, unaffected by adjustments in the spacing between the rollers.

[0024] When the primer needs to be replaced, the second motor is activated. The output of the second motor drives the rotating rod to rotate, which in turn drives two sets of limiting rotating plates to rotate. The limiting rotating plates drive the limiting slider to slide inside the U-shaped slide groove under the limiting guidance. At this time, the limiting slider drives the primer tank to move along the trajectory of the U-shaped slide groove, so that the primer tank moves downward first, then to the left, and finally upward, realizing the automatic ejection of the primer tank, which facilitates the replacement of the primer inside the primer tank. When the replacement is completed, the second motor is activated. The second motor drives the limiting slider and the primer tank to move below the dipping roller through the limiting rotating plates. At this time, the dipping roller dips the primer in the primer tank. When the primer level inside the primer tank drops, the second motor is activated, and the second motor drives the primer tank to move upward, so that the depth of the dipping roller in the primer remains unchanged, thereby making the coating on the color-coated plate more uniform and preventing uneven coating caused by the reduced contact area of ​​the dipping roller with the liquid. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 The three-dimensional representation of the present invention Figure 1 ;

[0027] Figure 2 This is a front view of the present invention;

[0028] Figure 3 The three-dimensional representation of the present invention Figure 2 ;

[0029] Figure 4 The three-dimensional representation of the present invention Figure 3 ;

[0030] Figure 5 The three-dimensional representation of the present invention Figure 4 ;

[0031] Figure 6 The three-dimensional representation of the present invention Figure 5 ;

[0032] Figure 7 for Figure 4 Enlarged view of point A in the middle.

[0033] The labels in the diagram represent:

[0034] 1. Support frame 2. Adjustable paint roller assembly 21. Drive roller assembly 211. First motor 212. Dipping roller 213. Transmission assembly 214. Feeding roller 215. Paint roller 22. Material transfer gap adjustment assembly 221. Adjusting slider 222. Adjusting slide rail 223. Threaded rod 224. Linkage rotating rod 225. Movable bevel gear 226. Connecting rod 227. Limiting rotating block 23. Paint gap adjustment assembly 231. Cylinder 232. Limiting slide 233. Arc-shaped slide 234. Limiting slide rod 235. Rotating slider 236. Arc-shaped slide rail 3. Primer loading and unloading assembly 31. Second motor 32. Rotating rod 33. Limiting rotating plate 34. Limiting slider 35. Primer tank 36. U-shaped slide 3 Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0036] The present invention will be further described below with reference to embodiments.

[0037] In some embodiments, please refer to the appendix to the instruction manual. Figure 1-7 A device and method for applying color-coated decorative panels that facilitates the replacement of primer, comprising a support frame 1;

[0038] The middle part of the support frame 1 is connected to a primer loading and unloading assembly 3 for automatically picking up and feeding the primer;

[0039] The upper right side of the support frame 1 of the primer loading and unloading assembly 3 is connected to an adjustable paint roller assembly 2, which can adjust the spacing between each roller according to the thickness of the color-coated plate.

[0040] The adjustable paint roller assembly 2 includes a drive roller assembly 21, a material transfer spacing adjustment assembly 22, and a paint spacing adjustment assembly 23. The drive roller assembly 21 is connected to the support frame 1 on the upper right side of the primer loading and unloading assembly 3. The front and rear ends of the drive roller assembly 21 are connected to the paint spacing adjustment assembly 23. The material transfer spacing adjustment assembly 22 is connected to the paint spacing adjustment assembly 23. The front and rear ends of the material transfer spacing adjustment assembly 22 are respectively connected to the front and rear inner walls of the support frame 1.

[0041] The drive roller assembly 21 includes a first motor 211, a dipping roller 212, a transmission assembly 213, a feeding roller 214, and a paint roller 215. The first motor 211 is fixedly connected to the front side wall of the support frame 1. The output end of the first motor 211 passes through the front side wall of the support frame 1 and is fixedly connected to the dipping roller 212. The feeding roller 214 is rotatably connected between the front and rear side walls of the support frame 1 to the right of the dipping roller 212. The front end of the feeding roller 214 and the dipping roller 212 are connected by transmission assembly 213. The paint roller 215 is fixedly connected to the paint spacing adjustment assembly 23 above the dipping roller 212 and the feeding roller 214.

[0042] The material transfer spacing adjustment assembly 22 includes an adjustment slider 221, an adjustment slide rail 222, a threaded rod 223, a linkage rotating rod 224, a movable bevel gear 225, a connecting rod 226, and a limiting rotating block 227. The front end of the paint roller 215 is fixedly connected to the adjustment slider 221, and the front end of the adjustment slider 221 is slidably connected to the adjustment slide rail 222. The threaded rod 223 passes through the adjustment slider 221 and is threadedly connected to the adjustment slider 221. Both ends of the threaded rod 223 are rotatably connected to the adjustment slide rail 222, and one end of the threaded rod 223 passes through the adjustment slide rail 222. A limiting rotating block 227 is rotatably connected to the inner wall of the support frame 1 at the rear end of the coating roller 212. 27. One end of the dipping roller 212 near the limiting rotating block 227 is rotatably connected to the limiting rotating block 227. A linkage rotating rod 224 is rotatably connected to the side wall of the limiting rotating block 227 near the paint roller 215. The linkage rotating rod 224 and the end of the dipping roller 212 near the limiting rotating block 227 are connected by bevel gear meshing. A movable bevel gear 225 is slidably connected to the middle of the linkage rotating rod 224. The rotating shaft of the connecting rod 226 passes through the connecting rod 226 and is rotatably connected to the connecting rod 226. The paint roller 215 passes through the connecting rod 226 and is rotatably connected to the connecting rod 226. The movable bevel gear 225 is connected to the paint roller 215 by bevel gear meshing.

[0043] The paint spacing adjustment assembly 23 includes a cylinder 231, a limiting slide 232, an arc-shaped slide groove 233, a limiting slide rod 234, a rotating slider 235, and an arc-shaped slide rail 236. Two sets of concentric threaded rods 223 are provided on the side wall of the support frame 1 in front of the adjusting slide rail 222. Two sets of limiting slide rods 234 are fixedly connected to the front side wall of the adjusting slide rail 222. One set of cylinders 231 passes through one set of arc-shaped slide grooves 233 and is slidably connected to the arc-shaped slide grooves 233. The other set of cylinders 231 is inserted into the other set of arc-shaped slide grooves 233 and is slidably connected to the arc-shaped slide grooves 233. The front end of cylinder 231 of 3 passes through the limiting slide 232 and is slidably connected to the limiting slide 232. The limiting slide 232 is slidably connected to the front side wall of the support frame 1 through a slider slide rail. Cylinder 231 is fixedly connected to the side wall of the support frame 1 below the limiting slide 232. The output end of cylinder 231 is fixedly connected to the bottom of the limiting slide 232. The end of the linkage rotating rod 224 away from the limiting rotating block 227 is rotatably connected to the rotating slider 235. The rear end of the rotating slider 235 is slidably connected to the arc-shaped slide rail 236. The rear end of the arc-shaped slide rail 236 is fixedly connected to the rear inner wall of the support frame 1.

[0044] When it is necessary to coat the color-coated steel sheet, cylinder 231 is activated. The output end of cylinder 231 drives the limiting slide 232 to move upward. The limiting slide 232 drives the limiting slide rod 234 to move upward. Under the limiting guidance of the two sets of arc-shaped slide grooves 233, the two sets of limiting slide rods 234 rotate around the dipping roller 212. At this time, the limiting slide rod 234 drives the paint roller 215 to rotate around the dipping roller 212 through the adjusting slide rail 222 and adjusting slider 221. The paint roller 215 drives the linkage rotating rod 224 to rotate around the dipping roller 212 through the connecting rod 226. The linkage rotating rod 224 drives the rotating slider 235 and the limiting rotating block 227 to rotate. The rotating slider 235 rotates under the limiting guidance of the arc-shaped slide rail 236, thereby moving the dipping roller 212 away from the paint roller 212. Feeding roller 214 is used to guide the color-coated sheet around the feeding roller 214. Since the paint roller 215 is far away from the feeding roller 214, the introduction of the color-coated sheet becomes simpler and more convenient. Then, the threaded rod 223 is rotated. The threaded rod 223 drives the adjusting slider 221 to move along the direction of the threaded rod 223 under the limiting guidance of the adjusting slide rail 222. This causes the adjusting slider 221 to drive the paint roller 215 to move away from or closer to the dipping roller 212, thus adjusting the distance between the paint roller 215 and the dipping roller 212. Since the distance adjustment between the paint roller 215 and the dipping roller 212 and the distance adjustment between the paint roller 215 and the feeding roller 214 are independent of each other, the spacing can be adjusted arbitrarily and can simultaneously meet the requirements of any thickness. When the paint roller 215 moves away from or towards the dip roller 212, it drives the movable bevel gear 225 to slide on the linkage rod 224 via the connecting rod 226. Once the adjustment is complete, the cylinder 231 is activated, causing the limiting slide 232 to move downwards. The limiting slide 232, via the limiting rod 234, drives the paint roller 215 to rotate around the dip roller 212, thus maintaining the distance between the paint roller 215 and the dip roller 212. The paint roller 215 rotates towards the feeding roller 214. When the paint roller 215 contacts and presses the color-coated sheet, the cylinder 231 stops. At this point, the installation of the color-coated sheet and the adjustment of the roller spacing are completed. The first motor 21 is then started. 1. The first motor 211 drives the dipping roller 212 to rotate. The dipping roller 212 drives the feeding roller 214 to rotate via the transmission assembly 213. The rotation of the dipping roller 212 drives the linkage rod 224 to rotate under the limit of the limiting block 227 and the rotating slider 235 via the bevel gear. Since the linkage rod 224 is slidably connected to the movable bevel gear 225, the linkage rod 224 drives the movable bevel gear 225 to rotate. The movable bevel gear 225 drives the paint roller 215 to rotate under the limit of the connecting rod 226. Therefore, when the paint roller 215 drives the connecting rod 226 and the movable bevel gear 225 to slide on the linkage rod 224, it does not affect the rotation of the dipping roller 212 through the linkage rod 224.This design achieves synchronous rotation of the dipping roller 212, feeding roller 214, and coating roller 215 using only one set of first motors 211, unaffected by adjustments in the spacing between the rollers.

[0045] In some embodiments, such as Figure 1 , Figure 4 and Figure 7 As shown, in a preferred embodiment of the present invention, a slider is fixedly connected to the outer wall of the linkage rod 224, and a groove is provided on the inner wall of the movable bevel gear 225. The movable bevel gear 225 and the linkage rod 224 are connected by a sliding groove slider for limiting.

[0046] In some embodiments, such as Figure 1-6 As shown, in a preferred embodiment of the present invention, the primer loading and unloading assembly 3 includes a second motor 31, a rotating rod 32, a limiting rotating plate 33, a limiting slider 34, a primer tank 35, and a U-shaped groove 36. The second motor 31 is fixedly connected to the rear side wall of the support frame 1. The output end of the second motor 31 passes through the rear side wall of the support frame 1 and is fixedly connected to the rotating rod 32. The front end of the rotating rod 32 is rotatably connected to the front inner wall of the support frame 1. A set of U-shaped grooves 36 is provided on both the front and rear side walls of the support frame 1 below the rotating rod 32. Each end is fixedly connected to a set of limiting rotating plates 33. A limiting groove is opened in the middle of the limiting rotating plate 33. There is a set of primer groove 35 between the two sets of limiting sliders 34. Limiting sliders 34 are fixedly connected to the front and rear side walls of the primer groove 35. The limiting sliders 34 pass through a set of limiting rotating plates 33 and a set of U-shaped grooves 36 that are close to each other. The limiting sliders 34 are slidably connected to the limiting rotating plates 33 and the U-shaped grooves 36. The limiting sliders 34 inside the limiting groove of the limiting rotating plate 33 are cylindrical, and the limiting sliders 34 inside the U-shaped groove 36 are square.

[0047] When the primer needs to be replaced, the second motor 31 is started. The output of the second motor 31 drives the rotating rod 32 to rotate. The rotating rod 32 drives the two sets of limiting rotating plates 33 to rotate. The limiting rotating plates 33 drive the limiting slider 34 to slide inside the U-shaped slide groove 36 under the limiting guidance. At this time, the limiting slider 34 drives the primer tank 35 to move along the trajectory of the U-shaped slide groove 36, so that the primer tank 35 moves downward first, then to the left, and finally upward, realizing the automatic ejection of the primer tank 35, which facilitates the replacement of the primer inside the primer tank 35. When the replacement is completed, The second motor 31 is started, and the second motor 31 drives the limit slider 34 and the primer tank 35 to move below the dipping roller 212 through the limit rotating plate 33. At this time, the dipping roller 212 dips the primer in the primer tank 35. When the primer level inside the primer tank 35 drops, the second motor 31 is started, and the second motor 31 drives the primer tank 35 to move upward, so that the depth of the dipping roller 212 in the primer remains unchanged, thereby making the coating on the color-coated plate more uniform and preventing uneven coating caused by the reduced contact area of ​​the dipping roller 212 with the liquid.

[0048] In some embodiments, please refer to the appendix to the instruction manual. Figure 1-7 A method for using a color-coated decorative panel coating device that facilitates primer replacement includes the following steps:

[0049] Step 1: When it is necessary to apply coating to the color-coated sheet, start cylinder 231. The output end of cylinder 231 drives the limiting slide 232 to move upward. The limiting slide 232 drives the limiting slide rod 234 to move upward. The two sets of limiting slide rods 234 rotate around the dipping roller 212 under the limiting guidance of the two sets of arc-shaped slide grooves 233. At this time, the limiting slide rod 234 drives the paint roller 215 to rotate around the dipping roller 212 through the adjusting slide rail 222 and adjusting slider 221. The paint roller 215 drives the linkage rotating rod 224 to rotate around the dipping roller 212 through the driving connecting rod 226. The linkage rotating rod 224 drives the rotating slider 235 and the limiting rotating block 227 to rotate. The rotating slider 235 rotates under the limiting guidance of the arc-shaped slide rail 236, thereby making the dipping roller 212 move away from the feeding roller 214. At this time, the color-coated sheet is passed around the feeding roller 214. Since the paint roller 215 is away from the feeding roller 214;

[0050] Step 2: Rotate the threaded rod 223. The threaded rod 223 drives the adjusting slider 221 to move along the direction of the threaded rod 223 under the limiting guide of the adjusting slide rail 222. This causes the adjusting slider 221 to drive the paint roller 215 to move away from or towards the dipping roller 212. The adjustment of the distance between the paint roller 215 and the dipping roller 212 and the adjustment of the distance between the paint roller 215 and the feeding roller 214 are independent of each other. When the paint roller 215 moves away from or towards the dipping roller 212, the paint roller 215 drives the movable bevel gear 225 to slide on the linkage rotating rod 224 through the connecting rod 226. When the adjustment is completed, start the cylinder 231. The cylinder 231 drives the limiting slide 232 to move downward. The limiting slide 232 drives the paint roller 215 to rotate around the dipping roller 212 through the limiting slide rod 234, so that the distance between the paint roller 215 and the dipping roller 212 does not change. The paint roller 215 rotates towards the feeding roller 214. When the paint roller 215 contacts and squeezes the color-coated plate, the cylinder 231 stops running. At this time, the first motor 211 is started. The first motor 211 drives the dipping roller 212 to rotate. The dipping roller 212 drives the feeding roller 214 to rotate through the transmission assembly 213. The rotation of the dipping roller 212 drives the linkage rod 224 to rotate under the limit of the limit block 227 and the rotating slider 235 through the bevel gear. Since the linkage rod 224 is connected to the movable bevel gear 225 in a limit sliding connection, the linkage rod 224 drives the movable bevel gear 225 to rotate. The movable bevel gear 225 drives the paint roller 215 to rotate under the limit of the connecting rod 226 through the bevel gear. When the paint roller 215 drives the connecting rod 226 and the movable bevel gear 225 to slide on the linkage rod 224, the dipping roller 212 drives the paint roller 215 to rotate through the linkage rod 224.

[0051] Step 3: When the primer needs to be replaced, start the second motor 31. The output of the second motor 31 drives the rotating rod 32 to rotate. The rotating rod 32 drives the two sets of limiting rotating plates 33 to rotate. The limiting rotating plates 33 drive the limiting slider 34 to slide inside the U-shaped slide 36 under the limiting guidance of the U-shaped slide 36. At this time, the limiting slider 34 drives the primer tank 35 to move along the trajectory of the U-shaped slide 36, so that the primer tank 35 moves down first, then to the left, and finally up. When the replacement is completed, start the second motor 31. The second motor 31 drives the limiting slider 34 and the primer tank 35 to move below the dipping roller 212 through the limiting rotating plates 33. At this time, the dipping roller 212 dips the primer in the primer tank 35. When the primer level inside the primer tank 35 drops, start the second motor 31. The second motor 31 drives the primer tank 35 to move up, so that the depth of the dipping roller 212 in the primer remains unchanged.

[0052] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A color-coated decorative panel coating device for easy replacement of primer, comprising a support frame (1), characterized in that: The middle part of the support frame (1) is connected to a primer loading and unloading assembly (3) for automatically taking out and feeding the primer. The upper right side of the support frame (1) of the primer loading and unloading assembly (3) is connected to an adjustable paint roller assembly (2) that can adjust the spacing between rollers according to the thickness of the color-coated plate. The adjustable coating roller assembly (2) includes a drive roller assembly (21), a material transfer spacing adjustment assembly (22), and a coating spacing adjustment assembly (23). The drive roller assembly (21) is connected to the support frame (1) on the upper right side of the primer loading and unloading assembly (3). The front and rear ends of the drive roller assembly (21) are connected to the coating spacing adjustment assembly (23). The material transfer spacing adjustment assembly (22) is connected to the coating spacing adjustment assembly (23). The front and rear ends of the material transfer spacing adjustment assembly (22) are respectively connected to the front and rear inner walls of the support frame (1). The drive roller assembly (21) includes a first motor (211), a dipping roller (212), a transmission assembly (213), a feeding roller (214), and a paint roller (215). The first motor (211) is fixedly connected to the front side wall of the support frame (1). The output end of the first motor (211) passes through the front side wall of the support frame (1) and is fixedly connected to the dipping roller (212). The feeding roller (214) is rotatably connected between the front and rear side walls of the support frame (1) to the right of the dipping roller (212). The front end of the feeding roller (214) and the dipping roller (212) are connected by transmission assembly (213). The paint roller (215) is fixedly connected to the paint spacing adjustment assembly (23) above the dipping roller (212) and the feeding roller (214). The material transfer spacing adjustment assembly (22) includes an adjustment slider (221), an adjustment slide rail (222), a threaded rod (223), a linkage rotating rod (224), a movable bevel gear (225), a connecting rod (226), and a limiting rotating block (227). The front end of the paint roller (215) is fixedly connected to the adjustment slider (221), and the front end of the adjustment slider (221) is slidably connected to the adjustment slide rail (222). The threaded rod (223) passes through the adjustment slider (221) and is threadedly connected to the adjustment slider (221). Both ends of the threaded rod (223) are rotatably connected to the adjustment slide rail (222), and one end of the threaded rod (223) passes through the adjustment slide rail (222). A limiting rotating block is rotatably connected to the inner wall of the support frame (1) at the rear end of the dipping roller (212). Block (227), the end of the dipping roller (212) near the limiting rotating block (227) is rotatably connected to the limiting rotating block (227), the side wall of the limiting rotating block (227) near the paint roller (215) is rotatably connected to the linkage rotating rod (224), the end of the linkage rotating rod (224) and the end of the dipping roller (212) near the limiting rotating block (227) are connected by bevel gear meshing, the middle part of the linkage rotating rod (224) is slidably connected to the movable bevel gear (225), the rotating shaft of the connecting rod (226) passes through the connecting rod (226) and is rotatably connected to the connecting rod (226), the paint roller (215) passes through the connecting rod (226) and is rotatably connected to the connecting rod (226), the movable bevel gear (225) is connected to the paint roller (215) by bevel gear meshing; The coating spacing adjustment assembly (23) includes a cylinder (231), a limiting slide (232), an arc-shaped slide groove (233), a limiting slide rod (234), a rotating slider (235), and an arc-shaped slide rail (236). Two sets of concentric threaded rods (223) are provided on the side wall of the support frame (1) in front of the adjusting slide rail (222). Two sets of limiting slide rods (234) are fixedly connected to the front side wall of the adjusting slide rail (222). One set of cylinders (231) passes through one set of arc-shaped slide grooves (233) and is slidably connected to the arc-shaped slide grooves (233). The other set of cylinders (231) is inserted into the other set of arc-shaped slide grooves (233) and is slidably connected to the arc-shaped slide grooves (233). The front end of the cylinder (231) of 233 passes through the limiting slide (232) and is slidably connected to the limiting slide (232). The limiting slide (232) is slidably connected to the front side wall of the support frame (1) through the slider rail. The cylinder (231) is fixedly connected to the side wall of the support frame (1) below the limiting slide (232). The output end of the cylinder (231) is fixedly connected to the bottom of the limiting slide (232). The end of the linkage rod (224) away from the limiting block (227) is rotatably connected to the rotating slider (235). The rear end of the rotating slider (235) is slidably connected to the arc-shaped slide rail (236). The rear end of the arc-shaped slide rail (236) is fixedly connected to the rear inner wall of the support frame (1).

2. The color-coated decorative panel coating device for easy replacement of primer according to claim 1, characterized in that, A slider is fixedly connected to the outer wall of the linkage rod (224), and a groove is provided on the inner wall of the movable bevel gear (225). The movable bevel gear (225) and the linkage rod (224) are connected by the slider of the groove for limiting sliding.

3. The color-coated decorative panel coating device for easy replacement of primer according to claim 2, characterized in that, The primer loading and unloading assembly (3) includes a second motor (31), a rotating rod (32), a limiting rotating plate (33), a limiting slider (34), a primer tank (35), and a U-shaped slide (36). The second motor (31) is fixedly connected to the rear side wall of the support frame (1). The output end of the second motor (31) passes through the rear side wall of the support frame (1) and is fixedly connected to the rotating rod (32). The front end of the rotating rod (32) is rotatably connected to the front inner wall of the support frame (1). The front and rear side walls of the support frame (1) below the rotating rod (32) are provided with... A set of U-shaped grooves (36) are provided. A set of limiting rotating plates (33) are fixedly connected to both the front and rear ends of the rotating rod (32). A limiting groove is provided in the middle of the limiting rotating plate (33). A set of primer groove (35) is provided between the two sets of limiting sliders (34). A limiting slider (34) is fixedly connected to the front and rear side walls of the primer groove (35). The limiting sliders (34) pass through a set of limiting rotating plates (33) and a set of U-shaped grooves (36) that are close to each other. The limiting sliders (34) are slidably connected to the limiting rotating plates (33) and the U-shaped grooves (36).

4. The color-coated decorative panel coating device for easy replacement of primer according to claim 3, characterized in that, The limiting slider (34) inside the upper limiting groove of the limiting plate (33) is cylindrical, and the limiting slider (34) inside the U-shaped groove (36) is square.

5. A method of using the color-coated decorative panel coating device as described in claim 3 or 4, characterized in that, Includes the following steps: Step 1: When it is necessary to apply coating to the color-coated plate, start the cylinder (231). The output end of the cylinder (231) drives the limiting slide (232) to move upward. The limiting slide (232) drives the limiting slide rod (234) to move upward. The two sets of limiting slide rods (234) rotate around the dipping roller (212) under the limiting guidance of the two sets of arc-shaped slide grooves (233). At this time, the limiting slide rod (234) drives the paint roller (215) to rotate around the dipping roller (212) through the adjusting slide rail (222) and the adjusting slider (221). When the paint roller (215) rotates, the paint roller (215) drives the linkage rod (224) to rotate around the dip roller (212) by driving the connecting rod (226). The linkage rod (224) drives the rotating slider (235) and the limiting rotating block (227) to rotate. The rotating slider (235) rotates under the limiting guidance of the arc-shaped slide rail (236), thereby making the dip roller (212) move away from the feeding roller (214). At this time, the color-coated plate is wrapped around the feeding roller (214). Since the paint roller (215) is away from the feeding roller (214), the paint roller (215) moves away from the feeding roller (214). Step 2: Rotate the threaded rod (223). The threaded rod (223) drives the adjusting slider (221) to move along the direction of the threaded rod (223) under the limiting guidance of the adjusting slide rail (222). This causes the adjusting slider (221) to drive the paint roller (215) to move away from or closer to the dipping roller (212). The distance adjustment between the paint roller (215) and the dipping roller (212) and the distance adjustment between the paint roller (215) and the feeding roller (214) are independent of each other. When the paint roller (215) moves away from or closer to the dipping roller (212), the distance adjustment between the paint roller (215) and the feeding roller (214) is independent of each other. When moving away from or towards the dipping roller (212), the paint roller (215) drives the movable bevel gear (225) to slide on the linkage rod (224) via the connecting rod (226). When the adjustment is complete, the cylinder (231) is activated. The cylinder (231) drives the limiting slide (232) to move downward. The limiting slide (232) drives the paint roller (215) to rotate around the dipping roller (212) via the limiting slide rod (234), so that the distance between the paint roller (215) and the dipping roller (212) does not change. The paint roller (215) rotates towards the feeding roller (214). When the paint roller (215) contacts and squeezes the color-coated plate, the cylinder (231) stops running. At this time, the first motor (211) is started. The first motor (211) drives the dip roller (212) to rotate. The dip roller (212) drives the feeding roller (214) to rotate through the transmission assembly (213). The rotation of the dip roller (212) drives the linkage rod (224) to rotate under the limit of the limit block (227) and the rotating slider (235) through the bevel gear. The linkage rod (224) and the movable bevel gear (225) are connected in a limited sliding manner, which causes the linkage rod (224) to drive the movable bevel gear (225) to rotate. The movable bevel gear (225) drives the paint roller (215) to rotate in the limited position of the connecting rod (226) through the bevel gear. When the paint roller (215) drives the connecting rod (226) and the movable bevel gear (225) to slide on the linkage rod (224), the dipping roller (212) drives the paint roller (215) to rotate through the linkage rod (224). Step 3: When the primer needs to be replaced, start the second motor (31). The output end of the second motor (31) drives the rotating rod (32) to rotate. The rotating rod (32) drives the two sets of limiting rotating plates (33) to rotate. The limiting rotating plates (33) drive the limiting slider (34) to slide inside the U-shaped slide groove (36) under the limiting guidance of the U-shaped slide groove (36). At this time, the limiting slider (34) drives the primer groove (35) to move along the trajectory of the U-shaped slide groove (36), so that the primer groove (35) moves down first and then to the left, and finally to the right. When the upper movement is completed, the second motor (31) is started. The second motor (31) drives the limit slider (34) and the primer tank (35) to move below the dip roller (212) through the limit rotating plate (33). At this time, the primer in the primer tank (35) is dipped by the dip roller (212). When the primer level inside the primer tank (35) drops, the second motor (31) is started. The second motor (31) drives the primer tank (35) to move upward, so that the depth of the dip roller (212) in the primer remains unchanged.

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