A coating apparatus for preparing calcium silicate boards

Abstract

This invention relates to the field of calcium silicate board preparation technology, specifically a coating device for calcium silicate board preparation. The device includes a roller frame with conveyor rollers rotatably arranged at equal intervals along its left-right direction. Two roller frames are symmetrically arranged front and back. A conveying component for stably conveying the calcium silicate board is located in the middle of the roller frame. A U-shaped frame is installed on the upper middle side of both roller frames. A coating component for uniformly coating the calcium silicate board is located inside the U-shaped frame. This invention uses equally spaced detection rollers to roll on the upper side of the calcium silicate board. By detecting the unevenness of the upper surface of the calcium silicate board, the position of the adjusting sleeve inside the feed tube is controlled by a follower frame, thereby controlling the flow rate of the filler in the feed tube. This allows the invention to adjust the amount of filler in real time according to the actual surface condition of the calcium silicate board, thus greatly reducing filler waste.

Description

Technical Field

[0001] This invention relates to the field of calcium silicate board preparation technology, specifically a coating device for preparing calcium silicate boards. Background Technology

[0002] Coating calcium silicate boards refers to applying a coating to the surface of the board to improve its appearance, protective properties, or functional performance. The coating liquid can be paint, latex paint, putty powder, filler, etc. Coating can improve the water resistance, stain resistance, wear resistance, and weather resistance of calcium silicate boards, and also enhance their aesthetic and decorative effects. Coating methods for calcium silicate boards include blade coating, roller coating, and extrusion coating. Among these, the existing technology using roller coating typically employs a roller coating machine.

[0003] Existing roller coating machines, when applying filler to calcium silicate boards, first spray a certain thickness of filler to fill the pits and depressions on the calcium silicate board, and then smooth the surface by grinding and polishing. However, this coating method cannot adjust the amount of filler according to the actual surface conditions of the calcium silicate board, resulting in the removal of a large amount of filler and waste. Furthermore, the existing method of moving the calcium silicate board using rotating rollers cannot stably transport the board, easily causing slippage and stagnation. This results in a large amount of filler being sprayed onto the same spot, making subsequent smoothing difficult and reducing the production efficiency of the calcium silicate board. Summary of the Invention

[0004] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is: a coating device for preparing calcium silicate board, including a roller frame, on which conveying rollers are rotatably arranged at equal intervals along the left and right directions, and two roller frames are symmetrically arranged in front and behind, with a conveying component for stably conveying calcium silicate board arranged in the middle of the roller frame, and a U-shaped frame is installed on the upper middle side of the two roller frames, with a coating component for uniformly coating calcium silicate board arranged inside the U-shaped frame.

[0005] The conveying component includes conveying rollers that are rotatably arranged on the left and right sides of the lower side of two roller frames. Two transmission belts are symmetrically wound around the outer sides of the two conveying rollers. Baffles for pushing the calcium silicate board to the right are arranged at equal intervals between the two transmission belts along their transmission trajectory. An actuator motor is installed on the left side of the front roller frame, and the output shaft of the actuator motor is connected to the conveying roller on the left side.

[0006] The coating component includes pressure rollers that slide vertically on the left and right sides of the lower part of a U-shaped frame. A coating frame slides vertically on the inner center of the U-shaped frame. A mounting column is fixedly installed on the lower left side of the coating frame. Support rods are slidably mounted on both the upper and lower sides of the mounting column via return springs. The support rods are evenly spaced along the axial direction of the mounting column. An arc-shaped bracket is installed at the end of the support rod away from the mounting column. Detection wheels are rotatably mounted on the outer sides of the corresponding upper and lower arc-shaped brackets. The upper side of the coating frame slides vertically at equal intervals along the front-back direction. A follower frame is provided, with each follower frame corresponding to a detection wheel. A retaining spring is installed between the upper part of the follower frame and the coating frame. A retaining wheel that rotates and fits against the detection wheel is installed at the lower part of the follower frame. An adjusting sleeve is installed on the lower right side of the follower frame. A material storage tank is installed on the right side of the coating frame. A feeding pipe that corresponds to the position of the detection wheel is installed inside the material storage tank. The adjusting sleeve slides up and down and is inserted into the feeding pipe. Moving blocks are symmetrically installed on the front and rear sides of the lower part of the material storage tank and slide up and down. A coating roller is installed between the moving blocks and rotates together.

[0007] The rotating transmission belt pushes the calcium silicate plate placed on the conveyor roller to the right through the baffle, thereby moving the calcium silicate plate into the coating component. The detection roller rolls on the upper side of the calcium silicate plate, driving the adjusting sleeve to adjust its position inside the feeding pipe. This allows the storage tank to place a certain amount of coating material on the coating roller through the feeding pipe, and the coating roller then coats the upper side of the calcium silicate plate.

[0008] As a preferred embodiment of the present invention, a friction block is provided on the side of the baffle that moves in the same direction as the baffle by a downward spring. A rubber plate to increase friction is provided on the side of the friction block that moves in the same direction as the baffle. A support rod that penetrates the baffle and extends out of its front is installed on the front part of the friction block. A buckle is provided inside the friction block that slides left and right. A slot is provided on the side wall of the baffle that is away from the transmission belt. An inclined panel is provided on the right rear part of the front roller frame to push the support rod down and reset it.

[0009] As a preferred embodiment of the present invention, L-shaped grooves are provided at the positions of the corresponding baffles on the transmission belt. Limiting plates are slidably provided inside the horizontal and vertical sections of the L-shaped grooves along their length directions. The limiting plates are elastically slidable within the corresponding positions of the L-shaped grooves by compression springs.

[0010] As a preferred embodiment of the present invention, the horizontal and vertical sections of the L-shaped chute are provided with limiting grooves to restrict the movement of the limiting plate, and the limiting plate is provided with a support plate that slides inside the limiting groove.

[0011] As a preferred embodiment of the present invention, the front side of the baffle is provided with an inclined block, which extends to the front side of the transmission belt located on the front side. A partition plate is fixedly installed at the rear of the roller frame located on the front side, and the upper side of the partition plate and the lower side of the inclined block rotated to the upper side are located on the same plane.

[0012] As a preferred embodiment of the present invention, a rectangular groove is provided on the right side of the portion of the feeding pipe located inside the storage tank, and an adjustment groove corresponding to the area of ​​the rectangular groove is provided on the adjustment sleeve.

[0013] As a preferred embodiment of the present invention, the lower side of the feeding tube has an arc-shaped structure corresponding to the arc surface of the coating roller, and an arc-shaped sealing ring is installed at the lower part of the arc-shaped structure of the feeding tube.

[0014] As a preferred embodiment of the present invention, a sliding block is slidably provided on the lower part of the side of the moving blocks that are close to each other, a clamping wheel is rotatably provided on the side of the sliding blocks that are close to each other, a threaded rod is rotatably provided inside the moving blocks, the threaded rod is threadedly connected to the sliding block, a guide post is installed on the upper part of the moving blocks that extends to the upper side of the storage tank, and a push spring is provided between the top of the guide post and the storage tank.

[0015] As a preferred embodiment of the present invention, the coating rack and the pressing roller are respectively adjusted up and down by adjusting screws that are threadedly connected to the U-shaped frame.

[0016] The beneficial effects of this invention are as follows:

[0017] I. This invention employs equally spaced detection rollers that roll on the upper side of a calcium silicate board. By detecting the unevenness of the upper side of the calcium silicate board, the position of the adjusting sleeve inside the feeding pipe is controlled by the follower frame, thereby controlling the flow rate of the filler in the feeding pipe. This invention allows for real-time adjustment of the filler dosage based on the actual surface condition of the calcium silicate board, thus greatly reducing filler waste.

[0018] Second, the present invention uses a transmission belt to drive a baffle, which in turn drives the calcium silicate board to transport it, thereby avoiding slippage of the calcium silicate board. When the baffle pushes the calcium silicate board to move, it can automatically pull the side of the calcium silicate board in contact with the baffle downward through the friction block, thereby preventing the side of the calcium silicate board in contact with the baffle from being pushed up.

[0019] Third, in this invention, when the baffle extends to the side of the calcium silicate board and moves it to the right, the reaction force of the calcium silicate board can push the baffle to slide to the left along the horizontal section of the L-shaped chute. This prevents the baffle from sliding downwards after sliding to the left, further stabilizing the conveying of the calcium silicate board. Furthermore, the baffle extending to the lower side of the calcium silicate board is locked in the lower position of the calcium silicate board by the cooperation of the inclined block and the partition plate, so that the baffle located on the lower side of the calcium silicate board will not be pressed against the calcium silicate board all the time, thereby avoiding damage to the calcium silicate board.

[0020] Fourth, when the clamping wheel is used to coat the calcium silicate board, the clamping wheel can automatically drive the coating roller from the lower side of the feed tube to the upper side of the calcium silicate board. Thus, when the calcium silicate board moves to the lower side of the coating roller, the calcium silicate board is automatically coated. When the calcium silicate board is not under the coating roller, the spring force drives the coating roller to block the feed tube, thereby further avoiding the waste of filler. Attached Figure Description

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] Figure 1 This is a schematic diagram of the overall structure of the present invention when coating a calcium silicate board.

[0023] Figure 2 This is a partial structural diagram of the roller frame, conveyor rollers, transmission belt and actuator motor in this invention.

[0024] Figure 3 This is a partial sectional view of the transmission belt, baffle, and separator in this invention.

[0025] Figure 4 This is a partial cross-sectional view of the transmission belt, baffle, inclined plate and friction block in this invention.

[0026] Figure 5 This is a cross-sectional view of the baffle, friction block, buckle, and slot in this invention.

[0027] Figure 6 This is a partial structural diagram of the roller rack, partition plate, inclined plate and conveyor roller located on the front side in this invention.

[0028] Figure 7 This is a partial cross-sectional view of the transmission belt and the limiting plate in this invention.

[0029] Figure 8 This is a cross-sectional view of the roller rack, conveyor roller, U-shaped frame, and coating component in this invention.

[0030] Figure 9 This is a cross-sectional view of the coating component after the detection wheel and follower frame have been removed in this invention.

[0031] Figure 10 This is a partial cross-sectional view of the coating component after the detection wheel and mounting post have been removed in this invention.

[0032] In the diagram: 1. Roller frame; 2. Conveying component; 3. Coating component; 11. Conveyor roller; 12. U-shaped frame; 21. Conveyor roller; 22. Drive belt; 23. Baffle; 24. Actuating motor; 31. Pressure roller; 32. Coating frame; 33. Mounting column; 34. Detection wheel; 35. Follower frame; 36. Storage trough; 37. Moving block; 38. Coating roller; 39. Adjusting screw; 221. L-shaped chute; 222. Limiting plate; 223. 231. Limiting groove; 232. Friction block; 233. Support rod; 234. Buckle; 235. Slot; 236. Sloping plate; 237. Sloping block; 238. Divider plate; 331. Support rod; 332. Arc-shaped seat; 351. Abutting wheel; 352. Adjusting sleeve; 361. Feed tube; 371. Sliding block; 372. Clamping wheel; 373. Threaded rod; 374. Guide column; 375. Push spring; 381. Arc-shaped sealing ring. Detailed Implementation

[0033] The embodiments of the present invention are described in detail below. The embodiments described below are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention. Where specific techniques or conditions are not specified in the embodiments, they shall be performed in accordance with the techniques or conditions described in the literature in the art or in accordance with the product manual.

[0034] See Figure 1 A coating apparatus for preparing calcium silicate boards includes a roller frame 1, on which conveyor rollers 11 are rotatably arranged at equal intervals along the left and right directions. Two roller frames 1 are symmetrically arranged front and back. A conveying component 2 for stably conveying calcium silicate boards is arranged in the middle of the roller frame 1. A U-shaped frame 12 is installed on the upper side of the middle of the two roller frames 1. A coating component 3 for uniformly coating calcium silicate boards is arranged inside the U-shaped frame 12. When it is necessary to coat the calcium silicate boards, the calcium silicate boards are first placed on the upper side of the conveyor rollers 11. Then, the conveyor component 2 can stably convey the calcium silicate boards to the right side of the coating component 3. Subsequently, the coating component 3 adaptively coats the side of the calcium silicate boards.

[0035] See Figure 1 , Figure 2 and Figure 3The conveying component 2 includes conveying rollers 21 that are rotatably mounted on the left and right sides of the two roller frames 1. Two transmission belts 22 are symmetrically wound around the outer sides of the two conveying rollers 21. Baffles 23 for pushing the calcium silicate board to the right are equally spaced between the two transmission belts 22 along their transmission trajectory. An actuator motor 24 is installed on the left side of the front roller frame 1. The output shaft of the actuator motor 24 is connected to the conveying roller 21 on the left side. When the calcium silicate board needs to be conveyed, the actuator motor 24 is started to drive the left conveying roller 21 to rotate. The left conveying roller 21 drives the right conveying roller 21 to rotate synchronously through the transmission belt 22. Then, the calcium silicate board is placed on the upper side of the conveying roller 11, so that the conveying roller 21 drives the baffle 23 to move to the left side of the calcium silicate board through the transmission belt 22, thereby driving the calcium silicate board to move synchronously to the right.

[0036] See Figure 2 , Figure 3 , Figure 4 , Figure 6 and Figure 7 L-shaped grooves 221 are provided on the transmission belt 22 at positions corresponding to the baffles 23. Limiting plates 222 are slidably installed along the length of the horizontal and vertical sections of the L-shaped grooves 221. The limiting plates 222 are elastically slidable within their corresponding positions in the L-shaped grooves 221 by compression springs. When the transmission belt 22 moves the baffles 23 to the left side of the calcium silicate plate, the reaction force of the calcium silicate plate pushes the baffles 23 to the left, causing the baffles 23 to slide to the left along the horizontal section of the L-shaped grooves 221 and simultaneously push the corresponding limiting plates 222. At this time, the baffles 23, restricted by the horizontal section of the L-shaped grooves 221, no longer have the possibility of moving downwards, thus stably abutting against the calcium silicate plate. The calcium silicate board is conveyed to the left side; when the conveyor belt 22 drives the baffle 23 to move to the lower side of the calcium silicate board, the calcium silicate board presses the baffle 23 downward by its own weight, so that the baffle 23 slides down along the vertical section of the L-shaped slide groove 221 and pushes the corresponding limiting plate 222 to move synchronously, while compressing the corresponding compression spring, so that the baffle 23 is restricted by the vertical section of the L-shaped slide groove 221 and no longer has the possibility of moving left and right, thus avoiding the baffle 23 sliding left and right while abutting against the lower side of the calcium silicate board, which would cause wear to the calcium silicate board. When the conveyor belt 22 drives the baffle 23 to move to the lower side, the compression spring pushes the corresponding limiting plate 222 to drive the baffle 23 back to the initial position.

[0037] See Figure 3 , Figure 4 and Figure 7To prevent the limiting plate 222 from jamming the position of the baffle 23, the following design is made in this embodiment: both the horizontal and vertical sections of the L-shaped slide 221 are provided with limiting grooves 223 to restrict the movement of the limiting plate 222. The limiting plate 222 is provided with a support plate that slides inside the limiting groove 223. The limiting plate 222, which slides up and down, moves upward under the push of the spring force of the compression spring at the corresponding position. When the limiting plate 222 drives the support plate on it to move to the side of the limiting groove 223 near the horizontal section of the L-shaped slide 221, the side of the limiting plate 222 near the baffle 23 is flush with the side of the horizontal section of the L-shaped slide 221 near the center of the transmission belt 22, so that the limiting plate 222 cannot move into the horizontal section of the L-shaped slide 221, thereby avoiding obstructing the reset of the baffle 23. Similarly, the limiting plate 222, which slides left and right, cannot move into the vertical section of the L-shaped slide 221.

[0038] See Figure 3 and Figure 6 To prevent the baffle 23, which rests against the lower side of the calcium silicate board, from continuously pushing against the calcium silicate board, the following design is made in this embodiment: a sloping block 236 is provided on the front side of the baffle 23, extending to the front side of the transmission belt 22 located on the front side; a partition plate 237 is fixedly installed on the rear part of the roller frame 1 located on the front side, and the upper side of the partition plate 237 and the lower side of the sloping block 236, which has rotated to the upper side, are located on the same plane; when the baffle 23 on the left side of the calcium silicate board moves to the right, the transmission belt 22 moves the baffle 23 located at the lower part of the calcium silicate board to the partition plate. At plate 237, the baffle 23 located at the bottom of the calcium silicate board engages with the left inclined surface of the partition plate 237 via the inclined block 236 on it. This presses the baffle 23 at the bottom of the calcium silicate board downwards until it is no longer in contact with the calcium silicate board. This prevents the baffle 23 against the bottom of the calcium silicate board from continuously pushing against the calcium silicate board and causing deformation. At the same time, the partition plate 237 can fit against the lower part of the inclined block 236 of the baffle 23 on the left side of the calcium silicate board, thereby further supporting the baffle 23 on the left side of the calcium silicate board and preventing it from swaying up and down.

[0039] See Figure 3 , Figure 4 , Figure 5 and Figure 6To prevent the left side of the calcium silicate board from tilting upwards when it is pushed, the following design is made in this embodiment: a friction block 231 is provided inside the baffle 23 on the side with the same direction of movement as it is moved by a downward pressure spring. A rubber plate to increase friction is provided on the side of the friction block 231 with the same direction of movement as the baffle 23. A support rod 232 that penetrates the baffle 23 and extends out of its front is installed at the front of the friction block 231. A buckle 233 is provided inside the friction block 231 that slides left and right. A slot 234 is provided on the side wall of the baffle 23 away from the transmission belt 22. An inclined plate 235 that pushes the support rod 232 downwards and resets it is provided on the right rear of the front roller frame 1. When the baffle 23 moves to abut against the left side of the calcium silicate board, the baffle 23 drives the rubber plate on the right side of the friction block 231 to abut against the left side of the calcium silicate board. The friction block 231 drives the right side of the buckle 233 to abut against the left side of the calcium silicate board. On the calcium silicate board, the reaction force of the calcium silicate board pushes the buckle 233 to the left, thereby pushing the buckle 233 out of the slot 234, and unlocking the position of the friction block 231. Under the push of the downward spring, the friction block 231 tends to move downward. The friction block 231 drives the left side of the calcium silicate board to press downward through the rubber plate, thereby preventing the left side of the calcium silicate board from tilting upward when pushing the calcium silicate board, which would affect the stable pushing of the calcium silicate board. When the transmission belt 22 drives the baffle 23 to move to the lower side, the baffle 23 drives the friction block 231 to the position of the inclined plate 235, so that the support rod 232 and the inclined plate 235 engage at an angle, pushing the support rod 232 downward to the initial position. The support rod 232 drives the friction block 231 to move to the initial position. The friction block 231 drives the buckle 233 downward to re-insert into the slot 234, thereby locking the friction block 231 in the initial position.

[0040] See Figure 1 , Figure 8 , Figure 9 and Figure 10The coating component 3 includes a pressure roller 31 that slides vertically on the left and right sides of the lower part of the U-shaped frame 12. A coating frame 32 slides vertically on the inner center of the U-shaped frame 12. The positions of the coating frame 32 and the pressure roller 31 are adjusted vertically via adjusting screws 39 threaded to the U-shaped frame 12. A mounting post 33 is fixedly installed on the lower left side of the coating frame 32. Support rods 331 are slidably mounted on both the upper and lower sides of the mounting post 33 via return springs. The support rods 331 are evenly spaced along the axial direction of the mounting post 33. An arc-shaped bracket 332 is installed at the end of the support rod 331 away from the mounting post 33. Detection wheels 34 are rotatably mounted on the outer sides of the corresponding upper and lower arc-shaped brackets 332. The adjusting screw 39 on the pressure roller 31 is pre-rotated, causing the pressure roller 31 to move downwards to fit against the upper side of the calcium silicate board. When the adjusting screw 39 on the coating rack 32 is rotated, the coating rack 32 moves downward. The coating rack 32 moves the mounting column 33 downward. The mounting column 33, through the support rod 331, drives the detection roller 34 to fit against the upper side of the calcium silicate board, so that the support rod 331 on the lower side is compressed into the mounting column 33. When the calcium silicate board moves to the coating component 3, the baffle 23 pushes the right side of the calcium silicate board to contact the pressure roller 31 on the left side, so that the pressure roller 31 on the left side presses the calcium silicate board against the upper side of the conveyor roller 11. Then the calcium silicate board continues to move to the right, so that the calcium silicate board contacts the lower side of the detection roller 34 and pushes it upward, so that the detection roller 34 drives the support rod 331 on the lower side to move closer to the mounting column 33 and compress the return spring at the corresponding position. Then the calcium silicate board moves to the right to the lower side of the pressure roller 31 on the right side.

[0041] Continue reading Figure 1 , Figure 8 , Figure 9 and Figure 10A follower frame 35 is slidably mounted on the upper side of the coating rack 32 at equal intervals along the front-to-back direction. The follower frame 35 corresponds one-to-one with the position of the detection wheel 34. A retaining spring is provided between the upper part of the follower frame 35 and the coating rack 32. An abutment wheel 351 is rotatably mounted on the lower part of the follower frame 35 and fits against the detection wheel 34. An adjusting sleeve 352 is installed on the lower right side of the follower frame 35. A material storage tank 36 is installed on the right side of the coating rack 32. A feed pipe 361 corresponding one-to-one with the position of the detection wheel 34 is installed inside the material storage tank 36. The adjusting sleeve 352 slides up and down through the material storage tank 36. Inserted inside the feeding pipe 361, the lower part of the storage tank 36 has symmetrically arranged moving blocks 37 on both the front and rear sides and sliding up and down. The coating roller 38 is arranged to rotate together between the moving blocks 37. When the detection wheel 34 is attached to the upper side of the calcium silicate board, the detection wheel 34 moves upward under the push of the calcium silicate board. When the detection wheel 34 moves, it pushes the abutment wheel 351 upward. The abutment wheel 351 drives the adjusting sleeve 352 to move upward along the feeding pipe 361 through the follower frame 35. At the same time, the moving blocks 37 drive the coating roller 38 to attach downward to the upper side of the calcium silicate board.

[0042] See Figure 9 and Figure 10 A rectangular groove is provided on the right side of the portion of the feeding pipe 361 located inside the storage tank 36. An adjustment groove corresponding to the area of ​​the rectangular groove is provided on the adjusting sleeve 352. When the detection wheel 34 presses on the plane of the calcium silicate board, the lower half of the adjustment groove on the adjusting sleeve 352 overlaps with the rectangular groove of the feeding pipe 361, thereby opening the opening of the rectangular groove of the feeding pipe 361 halfway. When the detection wheel 34 presses on the recess of the calcium silicate board, the return spring located on the lower side drives the support rod 331 located on the lower side to move downward, so that the support rod 331 drives the detection wheel 34 to move downward until it fits against the recess. When the detection wheel 34 moves downward, the pressing spring pushes the follower frame 35 to drive the abutment wheel 351 to move downward synchronously. Simultaneously, the moving frame 35 drives the adjusting sleeve 352 to move downward along the feeding pipe 361, increasing the overlapping area of ​​the adjusting groove and the rectangular groove. This enlarges the opening of the rectangular groove in the feeding pipe 361, resulting in a larger amount of filler flowing from the feeding pipe 361 to the coating roller 38, thus filling more filler into the pits on the calcium silicate board. Similarly, when the detection wheel 34 presses against the protrusion of the calcium silicate board, the detection wheel 34 moves upward, causing the adjusting sleeve 352 to move upward synchronously. This reduces the opening of the rectangular groove in the feeding pipe 361, filling less filler into the protrusion of the calcium silicate board. Thus, the amount of filler can be adjusted in real time according to the unevenness of the calcium silicate board.

[0043] See Figure 8 , Figure 9 and Figure 10To prevent filler from flowing out when no calcium silicate board moves to the underside of the coating roller 38, the following design is made in this embodiment: a sliding block 371 is slidably provided on the lower part of the side of the moving blocks 37 that are close to each other; a clamping wheel 372 is rotatably provided on the side of the sliding blocks 371 that are close to each other; a threaded rod 373 is rotatably provided inside the moving block 37, and the threaded rod 373 is threadedly connected to the sliding block 371; a guide post 374 is installed on the upper part of the moving block 37, extending to the upper side of the storage tank 36; a push spring 375 is provided between the top of the guide post 374 and the storage tank 36; the lower side of the feed pipe 361 has an arc-shaped structure corresponding to the arc surface of the coating roller 38; an arc-shaped sealing ring 381 is installed at the lower part of the arc-shaped structure of the feed pipe 361; in the initial state, the elastic force of the push spring 375 pushes the moving block 37 upward through the guide post 374, causing the moving block 37 to drive the coating roller 38 upward. The roller 38 is moved to press against the arc-shaped sealing ring 381 on the lower side of the feed pipe 361, thereby sealing the outlet of the feed pipe 361. Then, the threaded rod 373 is rotated in advance to drive the sliding block 371 to adjust its position up and down. The sliding block 371 drives the clamping wheel 372 to adjust its position synchronously, so that the distance between the upper side of the clamping wheel 372 and the lower side of the coating roller 38 is equal to the thickness of the calcium silicate board. When the calcium silicate board moves to the lower side of the coating roller 38, the calcium silicate board presses the clamping wheel 372 downward, so that the clamping wheel 372 moves downward to fit against the lower side of the calcium silicate board. At the same time, the clamping wheel 372 drives the moving block 37 to move downward synchronously through the sliding block 371. The moving block 37 drives the coating roller 38 to move downward to fit against the upper side of the calcium silicate board, so that the coating roller 38 no longer blocks the outlet of the feed pipe 361, thereby allowing the filler to flow through the feed pipe 361 to the coating roller 38.

[0044] The working principle of this invention when coating calcium silicate board is as follows: First, start the actuator motor 24 to drive the left conveyor roller 21 to rotate. The left conveyor roller 21 drives the right conveyor roller 21 to rotate synchronously through the transmission belt 22. Then, place the calcium silicate board on the upper side of the conveyor roller 11, so that the conveyor roller 21 drives the baffle 23 to move to the left side of the calcium silicate board through the transmission belt 22, thereby driving the calcium silicate board to move synchronously to the right.

[0045] In the second step, the baffle 23 pushes the right side of the calcium silicate plate to contact the pressing roller 31 located on the left side, so that the pressing roller 31 on the left side presses the calcium silicate plate against the upper side of the conveyor roller 11. Then the calcium silicate plate continues to move to the right, so that the calcium silicate plate contacts the lower side of the detection wheel 34 and pushes it upward, thereby causing the detection wheel 34 to drive the support rod 331 located on the lower side to move towards the mounting column 33 and compress the return spring at the corresponding position. Then the calcium silicate plate moves to the right to the lower side of the pressing roller 31 on the right side.

[0046] Third, when the calcium silicate board moves to the lower side of the coating roller 38, the calcium silicate board presses down on the clamping wheel 372, causing the clamping wheel 372 to move downward to fit against the lower side of the calcium silicate board. At the same time, the clamping wheel 372 drives the moving block 37 to move downward synchronously through the sliding block 371. The moving block 37 drives the coating roller 38 to move downward to fit against the upper side of the calcium silicate board, so that the coating roller 38 no longer blocks the outlet of the feed pipe 361, thereby allowing the filler to flow through the feed pipe 361 onto the coating roller 38.

[0047] Fourthly, when the detection wheel 34 presses against the recess of the calcium silicate board, the return spring on the lower side drives the support rod 331 on the lower side to move downward, so that the detection wheel 34 fits against the recess. The abutment wheel 351 moves downward in sync, and at the same time, the follower frame 35 drives the adjusting sleeve 352 to move downward, so that the overlapping area of ​​the adjusting groove and the rectangular groove increases, thereby increasing the amount of filler inside the storage tank 36 flowing from the feed pipe 361 to the coating roller 38, thus filling more filler into the recess of the calcium silicate board. Similarly, when the detection wheel 34 presses against the protrusion of the calcium silicate board, the adjusting sleeve 352 moves upward, thereby filling less filler into the protrusion of the calcium silicate board.

[0048] Fifth step: When the calcium silicate board moves to the right side of the coating roller 38, the elastic force of the push spring 375 pushes the moving block 37 upward through the guide column 374, so that the moving block 37 drives the coating roller 38 upward to press against the arc-shaped sealing ring 381 on the lower side of the feed pipe 361, thereby sealing the outlet of the feed pipe 361.

[0049] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention, which are still covered within the protection scope of the present invention.

Claims

1. A coating apparatus for preparing calcium silicate boards, comprising a roller frame (1), wherein conveying rollers (11) are rotatably arranged at equal intervals along the left-right direction on the roller frame (1), characterized in that, Two roller racks (1) are symmetrically arranged in front and back. A conveying component (2) for stable conveying of calcium silicate board is provided in the middle of the roller rack (1). A U-shaped frame (12) is installed on the upper side of the middle of the two roller racks (1). A coating component (3) for uniformly coating calcium silicate board is provided inside the U-shaped frame (12). The conveying component (2) includes conveying rollers (21) that rotate together on the left and right sides of the two roller frames (1). Two transmission belts (22) are symmetrically wound around the outer sides of the two conveying rollers (21). Baffles (23) for pushing calcium silicate boards to move to the right are equally spaced between the two transmission belts (22) along their transmission trajectory. An actuator motor (24) is installed on the left side of the front roller frame (1). The output shaft of the actuator motor (24) is connected to the conveying roller (21) on the left side. The coating component (3) includes a pressure roller (31) that slides up and down on the left and right sides of the lower part of the U-shaped frame (12). A coating frame (32) slides up and down on the middle of the inner side of the U-shaped frame (12). A mounting column (33) is fixedly installed on the lower left side of the coating frame (32). Support rods (331) are slidably installed on both the upper and lower sides of the mounting column (33) through return springs. The support rods (331) are arranged at equal intervals along the axial direction of the mounting column (33). An arc-shaped bracket (332) is installed at the end of the support rod (331) away from the mounting column (33). A detection wheel (34) is rotatably installed on the outer side of the arc-shaped brackets (332) at corresponding upper and lower positions. A follower frame slides up and down at equal intervals along the front and back direction on the upper side of the coating frame (32). (35), the positions of the follower frame (35) and the detection wheel (34) correspond one-to-one. A retaining spring is provided between the upper part of the follower frame (35) and the coating frame (32). A retaining wheel (351) is rotatably provided on the lower part of the follower frame (35) and fits against the detection wheel (34). An adjusting sleeve (352) is installed on the lower right side of the follower frame (35). A storage tank (36) is installed on the right side of the coating frame (32). A feeding pipe (361) corresponding one-to-one with the position of the detection wheel (34) is installed inside the storage tank (36). The adjusting sleeve (352) slides up and down through the feeding pipe (361). Moving blocks (37) are symmetrically provided on the front and rear sides of the lower part of the storage tank (36) and slide up and down. A coating roller (38) is rotatably provided between the moving blocks (37). The rotating transmission belt (22) pushes the calcium silicate plate placed on the conveyor roller (11) to the right through the baffle (23), thereby moving the calcium silicate plate into the coating component (3). The detection wheel (34) rolls on the upper side of the calcium silicate plate, driving the adjusting sleeve (352) to adjust its position inside the feed pipe (361), so that the storage tank (36) places a certain amount of paint on the coating roller (38) through the feed pipe (361), and coats the upper side of the calcium silicate plate through the coating roller (38). The feeding pipe (361) has a rectangular groove on the right side of the part inside the storage tank (36), and the adjusting sleeve (352) has an adjusting groove corresponding to the area of ​​the rectangular groove. The lower side of the feed tube (361) has an arc-shaped structure corresponding to the arc surface of the coating roller (38), and an arc-shaped sealing ring (381) is installed at the lower part of the arc-shaped structure of the feed tube (361).

2. The coating apparatus for preparing calcium silicate board according to claim 1, characterized in that, The baffle (23) has a friction block (231) inside it that moves in the same direction as the baffle (23) and is slidably mounted up and down by a pressure spring. The friction block (231) has a rubber plate that increases friction on the side that moves in the same direction as the baffle (23). A support rod (232) that passes through the baffle (23) and extends out of its front is installed on the front of the friction block (231). A buckle (233) is slidably mounted inside the friction block (231) and slides left and right. A slot (234) is opened on the side wall of the baffle (23) away from the transmission belt (22). A sloping panel (235) that pushes the support rod (232) down to reset is provided on the right rear of the front roller frame (1).

3. The coating apparatus for preparing calcium silicate board according to claim 1, characterized in that, L-shaped grooves (221) are provided on the transmission belt (22) at the position corresponding to the baffle (23). Limiting plates (222) are slidably provided inside the horizontal and vertical sections of the L-shaped grooves (221) along their length directions. The limiting plates (222) slide elastically within the corresponding positions of the L-shaped grooves (221) by compression springs.

4. The coating apparatus for preparing calcium silicate board according to claim 3, characterized in that, The horizontal and vertical sections of the L-shaped slide (221) are provided with limiting grooves (223) to restrict the movement of the limiting plate (222). The limiting plate (222) is provided with a support plate that slides inside the limiting groove (223).

5. The coating apparatus for preparing calcium silicate board according to claim 1, characterized in that, A ramp (236) is provided on the front side of the baffle (23), the ramp (236) extends to the front side of the transmission belt (22) located on the front side, and a partition plate (237) is fixedly installed on the rear part of the roller frame (1) located on the front side. The upper side of the partition plate (237) and the lower side of the ramp (236) rotated to the upper side are located on the same plane.

6. The coating apparatus for preparing calcium silicate board according to claim 1, characterized in that, A sliding block (371) is slidably provided on the lower part of the side of the moving blocks (37) that are close to each other. A clamping wheel (372) is rotatably provided on the side of the sliding blocks (371) that are close to each other. A threaded rod (373) is rotatably provided inside the moving block (37). The threaded rod (373) is threadedly connected to the sliding block (371). A guide post (374) is installed on the upper part of the moving block (37) that extends to the upper side of the storage tank (36). A push spring (375) is provided between the top of the guide post (374) and the storage tank (36).

7. The coating apparatus for preparing calcium silicate board according to claim 1, characterized in that, The coating rack (32) and the pressing roller (31) are respectively adjusted up and down by adjusting screws (39) that are threadedly connected to the U-shaped frame (12).

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