Dust-free polishing type paint spraying equipment for composite boards

Abstract

The invention relates to the technical field of wood board paint spraying, in particular to dust-free polishing type composite wood board paint spraying equipment, the paint spraying equipment sprays paint on a wood board, the paint spraying equipment comprises a fixing mechanism, a paint spraying mechanism, a nozzle cleaning mechanism, a dehumidifier, a polishing device and a dust removal mechanism, the fixing mechanism is connected with the paint spraying mechanism, and the fixing mechanism is connected with the nozzle cleaning mechanism; the fixing mechanism is connected with the dehumidifier, the polishing device and the dust removal mechanism, the paint spraying mechanism is connected with the nozzle cleaning mechanism, the nozzle cleaning mechanism cleans a nozzle of the paint spraying mechanism, the dust removal mechanism conducts dust removal operation on the surface of a wood board, and the fixing mechanism comprises an operation chamber, fixing supporting legs and limiting clamping blocks. The number of the fixed supporting legs is four, and one ends of the four fixed supporting legs are fixedly connected with the operation room.

Description

Technical Field

[0001] The invention relates to the technical field of wood board spray painting, in particular to a dust-free polishing type spray painting device for a composite wood board. Background Art

[0002] In the field of wood board spraying, wood board spraying, as an important part of surface treatment, is widely used in the coating of composite wood boards and other materials. It can not only enhance the appearance of the material, but also provide it with effective protection, such as anti-corrosion and anti-wear.

[0003] In the current wood board spray painting, most of them are done manually. People manually transfer liquid paint to the spray gun, and then hold the spray gun to spray the wood board. Such operation consumes manpower and is relatively inefficient. At the same time, the liquid paint needs to be replenished constantly, which requires the operator to stop spraying to replenish the liquid paint. There are generally impurities on the surface of the wood board. Directly spraying the wood board will affect the performance of the painted wood board. After spraying the wood board, the spray gun will stop working, and there is still unsprayed liquid paint on the inner wall of the spray gun nozzle. If it is not cleaned in time, the liquid paint will stick to the inner wall of the spray nozzle after solidification. After multiple superpositions, the thickness of the solidified liquid paint will increase, which may affect the normal painting of the spray gun, such as the sprayed paint is not fine, the amount of paint sprayed is reduced, etc. At the same time, the paint sprayed by the spray gun falls on the wooden board in a round shape, with more paint in the middle and less paint on the edges. Multiple spraying will make the paint on the wooden board more uniform, but there will still be uneven paint on the wooden board. After the paint on the wooden board is dried, the surface of the wooden board needs to be polished. During the polishing process, debris will be generated. If it is not cleaned in time, the polishing equipment may press the debris and affect the appearance of the wooden board. Summary of the invention

[0004] The object of the present invention is to provide a dust-free polishing composite wood board painting equipment to solve the problems raised in the above background technology.

[0005] In order to solve the above technical problems, the present invention provides the following technical solution: a dust-free polishing type composite wood board painting equipment.

[0006] The paint spraying equipment sprays paint on the wooden board. The paint spraying equipment includes a fixing mechanism, a paint spraying mechanism, a nozzle cleaning mechanism, a dehumidifier, a polishing device and a dust removal mechanism. The fixing mechanism is connected to the paint spraying mechanism, the fixing mechanism is connected to the nozzle cleaning mechanism, the fixing mechanism is connected to the dehumidifier, the fixing mechanism is connected to the polishing device, the fixing mechanism is connected to the dust removal mechanism, the paint spraying mechanism is connected to the nozzle cleaning mechanism, the nozzle cleaning mechanism cleans the nozzle of the paint spraying mechanism, and the dust removal mechanism performs dust removal operations on the surface of the wooden board.

[0007] In the paint spraying equipment, the whole equipment operates on the wooden board. The fixing mechanism is used to fix the wooden board so that the wooden board will not move during the work. At the same time, the fixing mechanism fixing the wooden board can also make other mechanisms work better. The paint spraying mechanism is used to spray liquid paint onto the wooden board. The paint spraying operation on the wooden board can make the wooden board more beautiful on the one hand. On the other hand, spraying the wooden board with paint can provide effective protection for the wooden board, such as anti-corrosion and anti-wear. The nozzle cleaning mechanism is used to clean the paint spraying mechanism. After the paint spraying mechanism completes the paint spraying operation on the wooden board, the paint spraying mechanism stops operating, but the spray There will still be liquid paint remaining in the paint nozzle and inside. If the paint spraying mechanism is used to spray the wooden board after the liquid paint has dried, it may affect the amount and range of the liquid paint sprayed, which is not conducive to the later painting of the wooden board. The dehumidifier is used to dehumidify the entire inside of the device, so that the wooden board that has just been painted can be dried so that it can be dried more quickly and proceed to the next step. The polishing device is used to polish the wooden board after the paint has dried. At the same time, by detecting the thickness, the polishing time of the thicker paint part can be extended. The dust removal mechanism is used to remove dust from the wooden board before painting, as well as to remove dust from the wooden board during the polishing process.

[0008] Furthermore, the fixing mechanism includes an operating room, fixed legs and limit blocks. There are four fixed legs, one end of the four fixed legs is fastened to the operating room, there are four limit blocks, the cross-section of the limit blocks is "L"-shaped, and the four limit blocks are respectively fastened to the side walls of the four fixed legs at one end away from the operating room. The operating room includes a bottom plate and an upper cover, the fixed legs are fastened to the bottom plate, a wooden board is placed on the fixed legs, the wooden board is engaged with the limit blocks, a rectangular opening is provided on the side wall of the upper cover, the operating room is connected to the paint spraying mechanism, the upper cover is connected to the paint spraying mechanism, the operating room is connected to the dehumidifier, the bottom plate is connected to the dehumidifier, the operating room is connected to the polishing device, the upper cover is connected to the polishing device, the operating room is connected to the dust removal mechanism, the upper cover is connected to the dust removal mechanism, the operating room is connected to the dehumidifier, and the bottom plate is fastened to the dehumidifier.

[0009] In the fixing mechanism, all the mechanisms in the paint spraying equipment are placed in the operating room, the four fixed legs are placed in the middle part of the bottom plate, and the four limit blocks are fastened to the four fixed legs respectively. They are all installed at one end of the fixed legs close to the upper cover wall. The limit size is just the size of a wooden board, and the wooden board can be stuck in it, and no displacement will occur during the painting process.

[0010] Furthermore, the paint spraying mechanism includes a gun body, a paint spray nozzle, an air compressor, a main pipeline, a paint delivery auxiliary pipeline, a first regulating valve and a paint storage tank. The paint spray nozzle is tightly connected to the gun body, the air compressor is tightly connected to the gun body, the main pipeline is tightly connected to the lower end of the gun body, a circular opening is provided on the main pipeline, and the circular opening of the main pipeline is located at an end away from the gun body. The paint delivery auxiliary pipeline is tightly connected to the circular opening of the main pipeline, the paint delivery auxiliary pipeline is away from the main pipeline and is tightly connected to the paint storage tank, the first regulating valve is tightly connected to the paint delivery auxiliary pipeline, the main pipeline is connected to the nozzle cleaning mechanism, and the gun body is connected to the nozzle cleaning mechanism. The paint spraying mechanism also includes a spraying device, the spraying device is tightly connected to the upper cover, the spraying device is connected to the gun body, the spraying device includes a first hydraulic cylinder, a driving motor, a moving track, a moving fixed block, a moving block, and the gun The body and the movable block are fastened in connection, the paint storage tank and the movable fixed block are fastened in connection, the driving motor and the upper cover are fastened in connection, the output end of the driving motor and the movable track are fastened in connection, the end of the movable track away from the driving motor is rotatably connected to the upper cover, a thread is provided on the movable track, a through hole is provided in the middle of the movable fixed block, a thread is provided on the inner wall of the through hole of the movable fixed block, the movable track and the movable fixed block are engaged by the thread, one end of the first hydraulic cylinder and the movable fixed block are fastened in connection with the supporting plate, a slide groove is provided under the movable fixed block, blocks are provided at both ends of the slide groove of the movable fixed block, a protrusion is provided on the movable block, the movable block is slidably connected with the slide groove at the bottom of the movable fixed block through the protrusion, the end of the first hydraulic cylinder away from the supporting plate is fastened to the movable block, the spraying device is connected to the nozzle cleaning mechanism, and the movable fixed block is connected to the nozzle cleaning mechanism.

[0011] In the paint spraying mechanism, the air compressor delivers compressed air into the gun body, the first regulating valve is started, the paint storage tank is connected to the first regulating valve, the liquid paint in the paint storage tank first flows from the paint storage tank to the paint delivery auxiliary pipeline, then flows into the main pipeline, and finally flows into the gun body, and together with the compressed air, flows to the paint spray nozzle, is sprayed out from the paint spray nozzle, and sprayed onto the wooden board. At the same time, the spraying device is started, the driving motor is started, so that the moving track rotates, and the moving fixed block is engaged with the moving track, so the moving fixed block will move along the moving track, and the sliding connection under the moving fixed block is made of the moving block, the moving block and the first hydraulic cylinder are tightly connected, and the copper drum support plate at the other end of the first hydraulic cylinder is tightly connected to the moving fixed block. The first hydraulic cylinder can push the moving block to move forward and backward, and the gun body is fixedly installed on the moving block, so the gun body will move forward and backward and left and right. Since the paint sprayed from the gun body falls on the wooden board in a similar circle, it also shows the characteristics of more paint in the middle and less paint at the edge. During the movement, an overlapping area is generated, so that the overlapping area has a thickness superposition, and the thickness of the spraying area is generally uniform through the thickness superposition.

[0012] Furthermore, the nozzle cleaning mechanism includes a second regulating valve, a water storage tank and a water supply auxiliary pipeline, the water supply auxiliary pipeline is tightly connected to the end of the main pipeline away from the gun body, the second regulating valve and the water supply auxiliary pipeline are tightly connected, the water storage tank and the movable fixed block are tightly connected, the water storage tank and the water supply auxiliary pipeline are tightly connected to the end away from the main pipeline; the polishing device includes a polishing machine, a second hydraulic cylinder and an ultrasonic thickness gauge, one end of the second hydraulic cylinder is tightly connected to the side wall of the upper cover, the end of the second hydraulic cylinder away from the upper cover is tightly connected to the polishing machine, and an ultrasonic thickness gauge is provided on the top of the upper cover, and the ultrasonic thickness gauge faces the wooden board.

[0013] In the nozzle cleaning mechanism, this mechanism is used to clean the main pipeline, gun body and paint nozzle after the previous paint spraying mechanism completes the painting, so as to reduce the residual liquid paint inside, because the residual liquid paint is relatively solid after drying and is difficult to clean. At the same time, it has a certain volume, which may affect the subsequent painting, such as reducing the amount of paint sprayed, etc. The water storage tank is located at the end of the main pipeline. After the paint spraying mechanism completes the painting, the first regulating valve is closed so that the liquid paint in the paint storage tank will no longer flow out, and the second regulating valve is opened so that the water in the water storage tank flows from the water storage tank to the water delivery auxiliary pipeline, and then the water in the water delivery auxiliary pipeline is used to clean the residual liquid paint. The water in the water tank flows into the main pipeline, and because the water storage tank is located at the end of the main pipeline, compared to the position of the paint storage tank, the water in the water tank can flow from the main pipeline without liquid paint to the main pipeline with liquid paint, and then be sprayed out from the paint spray nozzle together with the compressed air of the air compressor. At this time, there is no wooden board on the fixing mechanism, so it will not affect the wooden board. The water in the water tank is used to clean the main pipeline, the gun body and the paint spray nozzle. After the residual water inside evaporates, it will not have any impact on the device, while ensuring the cleanliness of the interior, and will not affect the subsequent painting due to the residual paint.

[0014] Furthermore, the polishing device includes a polishing machine, a second hydraulic cylinder and an ultrasonic thickness gauge. One end of the second hydraulic cylinder is fastened to the side wall of the upper cover, and the end of the second hydraulic cylinder away from the upper cover is fastened to the polishing machine. An ultrasonic thickness gauge is provided on the top of the upper cover, and the ultrasonic thickness gauge faces the wooden board.

[0015] In the polishing device, the polishing device is used to polish the dried wooden board. After the wooden board is dried, the thickness of the paint on the surface of the wooden board is detected by an ultrasonic thickness gauge, and the detected signal is converted into an electrical signal for controlling the second hydraulic cylinder. When the second hydraulic cylinder pushes the polisher to polish the wooden board, the position where the second hydraulic cylinder needs to stop is adjusted according to the electrical signal that controls it. After a certain period of time, the polisher is driven forward or backward to polish the wooden board. In this way, not only the overall polishing of the wooden board can be achieved, but also the fixed-point polishing of the locally thicker area can be achieved, making the polished wooden board smoother and more beautiful.

[0016] Furthermore, the dust removal mechanism includes a fan, an air supply duct, an air outlet and an air pressure plate. The fan is placed on the outer wall of the upper cover, the outer wall of the upper cover of the fan is tightly connected, one end of the air supply duct is tightly connected to the fan, the end of the air supply duct away from the fan is tightly connected to the air outlet, the cross-section of the end of the air outlet is rectangular, the air outlet and the rectangular opening of the side wall of the upper cover are tightly connected, two air pressure plates are provided, the two air pressure plates are tightly connected to the upper and lower sides of the rectangular opening of the upper cover respectively, the distance between the two air pressure plates gradually decreases as they are away from the rectangular opening, and the distance between the two wind pressure plates away from one end of the rectangular opening is half the height of the rectangular opening.

[0017] In the dust removal mechanism, the dust removal mechanism is used to remove dust before the wood board is painted, and to remove dust during the polishing process of the wood board. After the fan is started, the wind is sent to the air outlet through the air supply duct. The air outlet is tightly connected to the side wall of the upper cover. The fan can send clean air into the operating room. If the wind is sent directly in, it will escape, which greatly weakens the cleaning ability. Therefore, two wind pressure plates are set. The two wind pressure plates are fixedly connected to the upper and lower ends of the rectangular opening on the side of the upper cover to guide the clean air so that it moves along the direction of the wind pressure plate. At the same time, the distance between the two wind pressure plates gradually decreases as it moves away from the rectangular opening. In this way, the clean air pressure is given in terms of the degree of movement, so that it can reach the wood board well for cleaning after leaving the wind pressure plate. One time is to clean the surface of the wood board before the paint spraying mechanism is started to reduce the dust and debris carried by the wood board itself, so that the liquid paint can better fit the wood board body. The other time is to remove dust after the polishing device is started to clean the debris in the polishing process of the polishing device to prevent affecting the normal operation of the polishing device.

[0018] Compared with the prior art, the beneficial effects achieved by the present invention are: 1. The main pipeline, gun body and nozzle in the paint spraying mechanism are cleaned to reduce the residual liquid paint inside and prevent adverse effects on subsequent paint spraying; 2. Polish the painted wood board at fixed points to make the polished wood board smoother and more beautiful; 3. Dust the wooden board twice, before painting and during polishing. Dust is removed before painting to reduce the dust and debris carried by the wooden board itself, so that the liquid paint can better fit the wooden board body; dust is removed during polishing to clean up the debris in the polishing process of the polishing device to prevent it from affecting the normal operation of the polishing device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the internal structure of the present invention; Figure 3 is a transverse cross-sectional view of the present invention; Figure 4 It is a schematic diagram of the paint spraying mechanism structure of the present invention; Figure 5 It is an oblique view of the paint spraying mechanism and the nozzle cleaning mechanism of the present invention; Figure 6 It is a front view of the paint spraying mechanism and the nozzle cleaning mechanism of the present invention; In the figure: 1. wooden board; 2. fixing mechanism; 21. operating room; 211. bottom plate; 212. upper cover; 22. fixed legs; 23. limit block; 3. paint spraying mechanism; 31. gun body; 32. paint spraying nozzle; 33. air compressor; 34. main pipeline; 35. paint delivery pipeline; 36. first regulating valve; 37. paint storage tank; 38. spraying and moving device; 381. first hydraulic cylinder; 382. driving motor; 383. moving track; 384. moving fixed block; 385. moving block; 4. nozzle cleaning mechanism; 41. second regulating valve; 42. water storage tank; 43. water delivery pipeline; 5. dehumidifier; 6. polishing device; 61. polishing machine; 62. second hydraulic cylinder; 7. dust removal mechanism; 71. fan; 72. air supply pipeline; 73. air outlet; 74. wind pressure plate. DETAILED DESCRIPTION

[0021] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0022] See also Figure 1-6 , the present invention provides a technical solution: like Figure 1 , 2 As shown, the paint spraying equipment sprays paint on the wooden board 1, and the paint spraying equipment includes a fixing mechanism 2, a paint spraying mechanism 3, a nozzle cleaning mechanism 4, a dehumidifier 5, a polishing device 6 and a dust removal mechanism 7. The fixing mechanism 2 is connected to the paint spraying mechanism 3, the fixing mechanism 2 is connected to the nozzle cleaning mechanism 4, the fixing mechanism 2 is connected to the dehumidifier 5, the fixing mechanism 2 is connected to the polishing device 6, the fixing mechanism 2 is connected to the dust removal mechanism 7, the paint spraying mechanism 3 is connected to the nozzle cleaning mechanism 4, the nozzle cleaning mechanism 4 cleans the nozzle of the paint spraying mechanism 3, and the dust removal mechanism 7 performs dust removal operations on the surface of the wooden board 1.

[0023] In the paint spraying equipment, the whole equipment operates on the wooden board 1. The fixing mechanism 2 is used to fix the wooden board 1 so that the wooden board 1 will not move during the operation. At the same time, the fixing mechanism 2 fixes the wooden board 1 so that other mechanisms can work better. The paint spraying mechanism 3 is used to spray liquid paint onto the wooden board 1. The paint spraying operation on the wooden board 1 can make the wooden board 1 more beautiful on the one hand. On the other hand, the paint spraying operation on the wooden board 1 can provide effective protection for the wooden board 1, such as corrosion protection and wear protection. The nozzle cleaning mechanism 4 is used to clean the paint spraying mechanism 3. After the paint spraying mechanism 3 completes the paint spraying operation on the wooden board 1, the paint spraying mechanism 3 stops operating. However, there will still be liquid paint remaining in the nozzle and inside. If the paint spraying mechanism 3 is used to spray paint the wooden board 1 after the liquid paint is air-dried, it may affect the amount and range of the liquid paint sprayed, which is not conducive to the later painting of the wooden board 1. The dehumidifier 5 is used to dehumidify the entire inside of the device, so that the wooden board 1 that has just been painted can be dried so that it can be dried more quickly and proceed to the next step. The polishing device 6 is used to polish the wooden board 1 after the paint is dried. At the same time, by detecting the thickness, the polishing time of the thicker paint part is extended. The dust removal mechanism 7 is used to remove dust from the wooden board 1 before painting, and to remove dust from the wooden board 1 during the polishing process.

[0024] like Figure 1 , 2 As shown, the fixing mechanism 2 includes an operating room 21, a fixed leg 22 and a limit block 23. There are four fixed legs 22, one end of the four fixed legs 22 is fastened to the operating room 21, there are four limit blocks 23, the cross section of the limit block 23 is "L" shaped, and the four limit blocks 23 are fastened to the side walls of the four fixed legs 22 away from the operating room 21, respectively. The operating room 21 includes a bottom plate 211 and an upper cover 212. The fixed legs 22 are fastened to the bottom plate 211, and the wooden board 1 is placed on the fixed legs. On 22, the wooden board 1 and the limiting block 23 are engaged, the side wall of the upper cover 212 is provided with a rectangular opening, the operating room 21 and the paint spraying mechanism 3 are connected, the upper cover 212 and the paint spraying mechanism 3 are connected, the operating room 21 and the dehumidifier 5 are connected, the bottom plate 211 and the dehumidifier 5 are connected, the operating room 21 and the polishing device 6 are connected, the upper cover 212 and the polishing device 6 are connected, the operating room 21 and the dust removal mechanism 7 are connected, the upper cover 212 and the dust removal mechanism 7 are connected, the operating room 21 and the dehumidifier 5 are connected, and the bottom plate 211 and the dehumidifier 5 are tightly connected.

[0025] In the fixing mechanism 2, all the mechanisms in the paint spraying equipment are placed in the operating room 21, the four fixing legs 22 are placed in the middle part of the bottom plate 211, and the four limiting blocks 23 are respectively fastened to the four fixing legs 22, and are all installed at one end of the fixing legs 22 close to the wall of the upper cover 212. The limiting size is just the size of a wooden board 1, and the wooden board 1 can be stuck in it, and no displacement will occur during the painting process.

[0026] like Figure 2 , 4 As shown in Figure 6, the paint spraying mechanism 3 includes a gun body 31, a paint spraying nozzle 32, an air compressor 33, a main pipeline 34, a paint delivery auxiliary pipeline 35, a first regulating valve 36 and a paint storage tank 37. The paint spraying nozzle 32 is tightly connected to the gun body 31, the air compressor 33 is tightly connected to the gun body 31, the main pipeline 34 is tightly connected to the lower end of the gun body 31, a circular opening is provided on the main pipeline 34, and the circular opening of the main pipeline 34 is located at an end away from the gun body 31, the paint delivery auxiliary pipeline 35 is tightly connected to the circular opening of the main pipeline 34, and the paint delivery auxiliary pipeline 35 is tightly connected to the circular opening of the main pipeline 34. The paint auxiliary pipeline 35 is away from the main pipeline 34 and is tightly connected to the paint storage tank 37. The first regulating valve 36 is tightly connected to the paint auxiliary pipeline 35. The main pipeline 34 is connected to the nozzle cleaning mechanism 4. The gun body 31 is connected to the nozzle cleaning mechanism 4. The paint spraying mechanism 3 also includes a spraying device 38. The spraying device 38 is tightly connected to the upper cover 212. The spraying device 38 is connected to the gun body 31. The spraying device 38 includes a first hydraulic cylinder 381, a driving motor 382, ​​a moving track 383, a moving fixed block 384, and a moving block 385. The gun body 31 is fastened to the moving block 385, the paint storage tank 37 is fastened to the moving fixed block 384, the driving motor 382 is fastened to the upper cover 212, the output end of the driving motor 382 is fastened to the moving track 383, the end of the moving track 383 away from the driving motor 382 is rotatably connected to the upper cover 212, the moving track 383 is provided with a thread, the middle of the moving fixed block 384 is provided with a through hole, the inner wall of the through hole of the moving fixed block 384 is provided with a thread, and the moving track 383 and the moving fixed block 384 are connected. Through threaded engagement, one end of the first hydraulic cylinder 381 and the movable fixed block 384 are fastened connected through the support plate, a slide groove is provided under the movable fixed block 384, and blocks are provided at both ends of the slide groove of the movable fixed block 384. A protrusion is provided on the movable block 385, and the movable block 385 is slidably connected to the slide groove at the bottom of the movable fixed block 384 through the protrusion. The end of the first hydraulic cylinder 381 away from the support plate is fastened connected to the movable block 385, the spraying device 38 is connected to the nozzle cleaning mechanism 4, and the movable fixed block 384 is connected to the nozzle cleaning mechanism 4.

[0027] In the paint spraying mechanism 3, the air compressor 33 delivers compressed air into the gun body 31, the first regulating valve 36 is started, the paint storage tank 37 is connected to the first regulating valve 36, and the liquid paint in the paint storage tank 37 first flows from the paint storage tank 37 to the paint delivery auxiliary pipeline 35, then flows into the main pipeline 34, and finally flows into the gun body 31, and together with the compressed air, flows to the paint spraying nozzle 32, and is sprayed from the paint spraying nozzle 32 onto the wooden board 1. At the same time, the spraying device 38 is started, and the driving motor 382 is started, so that the moving track 383 rotates, and the moving fixed block 384 is engaged with the moving track 383, so that the moving fixed block 384 will move along the moving track 383, and the moving fixed block 384 will move along the moving track 383. The lower sliding connection of block 384 is composed of moving block 385, and moving block 385 is fastened to the first hydraulic cylinder 381. The copper drum support plate at the other end of the first hydraulic cylinder 381 is fastened to the moving fixed block 384. The first hydraulic cylinder 381 can push the moving block 385 to move forward and backward, and the gun body 31 is fixedly installed on the moving block 385. Therefore, the gun body 31 will move forward and backward and left and right. Since the paint sprayed by the gun body 31 falls on the wooden board in a circular shape, and at the same time presents the characteristics of more paint in the middle and less paint at the edge, an overlapping area is generated during the movement, so that the overlapping area has thickness superposition, and the thickness of the spraying area is generally uniform through thickness superposition.

[0028] like Figure 5 , 6 As shown, the nozzle cleaning mechanism 4 includes a second regulating valve 41, a water storage tank 42 and a water supply auxiliary pipe 43, the water supply auxiliary pipe 43 and the end of the main pipe 34 away from the gun body 31 are fastened together, the second regulating valve 41 and the water supply auxiliary pipe 43 are fastened together, the water storage tank 42 and the movable fixed block 384 are fastened together, the water storage tank 42 and the end of the water supply auxiliary pipe 43 away from the main pipe 34 are fastened together; the polishing device 6 includes a polisher 61, a second hydraulic cylinder 62 and an ultrasonic thickness gauge, one end of the second hydraulic cylinder 62 is fastened together with the side wall of the upper cover 212, the end of the second hydraulic cylinder 62 away from the upper cover 212 is fastened together with the polisher 61, an ultrasonic thickness gauge is provided on the top of the upper cover 212, and the ultrasonic thickness gauge faces the wooden board 1.

[0029] In the nozzle cleaning mechanism 4, the mechanism is used to clean the main pipeline 34, the gun body 31 and the paint spray nozzle 32 after the previous step of the paint spraying mechanism 3 completes the painting, so as to reduce the residual liquid paint therein, because the residual liquid paint is relatively solid after drying and is difficult to clean. At the same time, it has a certain volume and may affect the subsequent painting, such as reducing the amount of paint sprayed, etc. The water storage tank 42 is located at the end of the main pipeline 34. After the paint spraying mechanism 3 completes the painting, the first regulating valve 36 is closed so that the liquid paint in the paint storage tank 37 will no longer flow out, and the second regulating valve 41 is opened so that the water in the water storage tank 42 flows from the water storage tank 42 to the water delivery auxiliary pipeline 43, and then the water delivery auxiliary pipeline 4 3 flows to the main pipeline 34, and because the water storage tank 42 is located at the end of the main pipeline 34, compared with the position of the paint storage tank 37, the water in the water storage tank 42 can flow from the main pipeline 34 without liquid paint to the main pipeline 34 with liquid paint, and then be sprayed out from the paint spray nozzle 32 together with the compressed air of the air compressor 33. At this time, there is no wooden board 1 on the fixing mechanism, so it will not affect the wooden board 1. The water in the water storage tank 42 is used to clean the main pipeline 34, the gun body 31 and the paint spray nozzle 32. After the residual water inside evaporates, it will not have any impact on the device, while ensuring the cleanliness of the interior, and will not affect the subsequent painting due to the residual paint.

[0030] like Figure 2 As shown, the polishing device 6 includes a polisher 61, a second hydraulic cylinder 62 and an ultrasonic thickness gauge. One end of the second hydraulic cylinder 62 is fastened to the side wall of the upper cover 212, and the end of the second hydraulic cylinder 62 away from the upper cover 212 is fastened to the polisher 61. An ultrasonic thickness gauge is provided on the top of the upper cover 212, and the ultrasonic thickness gauge faces the wooden board 1.

[0031] In the polishing device 6, the polishing device 6 is used to perform a polishing operation on the dried wooden board 1. After the wooden board 1 is dried, the thickness of the paint on the surface of the wooden board 1 is detected by an ultrasonic thickness gauge, and the detected signal is converted into an electrical signal for controlling the second hydraulic cylinder 62. When the second hydraulic cylinder 62 pushes the polisher 61 to polish the wooden board 1, the position where the second hydraulic cylinder 62 needs to stop is adjusted according to the electrical signal controlling it. After a certain period of time, the polisher 61 is driven forward or backward to polish the wooden board 1. In this way, not only the overall polishing of the wooden board 1 can be achieved, but also the fixed-point polishing of the locally thicker area can be achieved, so that the polished wooden board 1 is smoother and more beautiful.

[0032] like Figure 1 , 3As shown, the dust removal mechanism 7 includes a fan 71, an air supply duct 72, an air outlet nozzle 73 and an air pressure plate 74. The fan 71 is placed on the outer wall of the upper cover 212, and the fan 71 is tightly connected to the outer wall of the upper cover 212. One end of the air supply duct 72 is tightly connected to the fan 71, and the end of the air supply duct 72 away from the fan 71 is tightly connected to the air outlet nozzle 73. The cross-section of the end of the air outlet nozzle 73 is rectangular, and the air outlet nozzle 73 is tightly connected to the rectangular opening of the side wall of the upper cover 212. Two air pressure plates 74 are provided, and the two air pressure plates 74 are tightly connected to the upper and lower sides of the rectangular opening of the upper cover 212 respectively. The distance between the two air pressure plates 74 gradually decreases as they are away from the rectangular opening, and the distance between the two air pressure plates 74 away from one end of the rectangular opening is half the height of the rectangular opening.

[0033] In the dust removal mechanism 7, the dust removal mechanism 7 is used for dust removal before the wood board 1 is painted, and for dust removal during the polishing process of the wood board 1. After the fan 71 is started, the wind is sent to the air outlet 73 through the air supply duct 72. The air outlet 73 is tightly connected to the side wall of the upper cover 212. The fan 71 can send clean air into the operating room 21. If the wind is sent directly into the operating room 21, it will dissipate, greatly weakening the cleaning ability. Therefore, two wind pressure plates 74 are set. The two wind pressure plates 74 are fixedly connected to the upper and lower ends of the rectangular opening on the side of the upper cover 212 to guide the clean air so that it can be blown along the wind pressure plates 7. 4, and at the same time, the distance between the two wind pressure plates 74 gradually decreases as it moves away from the rectangular opening, so that the cleaning wind pressure is given in terms of the movement degree, so that it can reach the wooden board 1 for cleaning after leaving the wind pressure plate 74. One time is before the paint spraying mechanism 3 is started, the surface of the wooden board 1 is cleaned to reduce the dust and debris carried by the wooden board 1 itself, so that the liquid paint can better fit the wooden board 1 body. The other time is after the polishing device 6 is started, dust removal is carried out to clean the debris during the polishing process of the polishing device 6 to prevent affecting the normal operation of the polishing device 6.

[0034] Working principle of the present invention: After the present invention is started, the dust removal mechanism 7 first performs the initial dust removal on the surface of the wooden board 1, so that the liquid paint can better fit the wooden board 1 body, and then the paint spraying mechanism 3 is started to spray paint on the wooden board 1. After the painting is completed, the dehumidifier 5 is started to dehumidify the operating room 21 to dry the liquid paint on the wooden board 1. Then the polishing device 6 is started to perform the polishing operation, and the thickness of the paint on the surface of the wooden board 1 is detected by an ultrasonic thickness gauge, and the detected signal is converted into an electrical signal for controlling the second hydraulic cylinder 62. According to the electrical signal controlling it, the position where the second hydraulic cylinder 62 needs to stop is adjusted. After a certain period of time, the polishing machine 61 is driven forward or backward to polish other parts of the wooden board 1. In this way, not only the overall polishing of the wooden board 1 can be achieved, but also the fixed-point polishing of the locally thicker area can be achieved. At the same time, the dust removal mechanism 7 cleans the debris in the polishing process of the polishing device 6 to prevent affecting the normal operation of the polishing device 6. After completion, the wooden board 1 is taken away, and the nozzle cleaning mechanism 4 is started to clean the liquid paint remaining in the main pipeline 34, the gun body 31 and the paint spray nozzle 32 through the water in the water storage tank 42.

[0035] Although the embodiments of the present invention have been shown and described, it is to be understood that the above embodiments are illustrative and are not to be construed as limitations on the present invention. A person skilled in the art may change, modify, substitute and vary the above embodiments within the scope of the present invention without departing from the principles and purpose of the present invention.

Claims

1. A dust-free polishing composite wood board painting device, the painting device spraying paint on the wood board (1), characterized in that: The paint spraying equipment comprises a fixing mechanism (2), a paint spraying mechanism (3), a nozzle cleaning mechanism (4), a dehumidifier (5), a polishing device (6) and a dust removal mechanism (7); the fixing mechanism (2) is connected to the paint spraying mechanism (3); the fixing mechanism (2) is connected to the nozzle cleaning mechanism (4); the fixing mechanism (2) is connected to the dehumidifier (5); the fixing mechanism (2) is connected to the polishing device (6); the fixing mechanism (2) is connected to the dust removal mechanism (7); the paint spraying mechanism (3) is connected to the nozzle cleaning mechanism (4); the nozzle cleaning mechanism (4) cleans the nozzle of the paint spraying mechanism (3); and the dust removal mechanism (7) performs dust removal operations on the surface of the wooden board (1); The fixing mechanism (2) comprises an operating room (21), a fixing leg (22) and a limiting block (23), wherein four fixing legs (22) are provided, one end of the four fixing legs (22) being fastened to the operating room (21), and four limiting blocks (23) are provided, wherein the cross section of the limiting block (23) is "L"-shaped, and the four limiting blocks (23) are fastened to the side walls of one end of the four fixing legs (22) away from the operating room (21), respectively, and the operating room (21) comprises a bottom plate (211) and an upper cover (212), wherein the fixing legs (22) and the bottom plate (211) are fastened to each other, and the wooden board (1) is placed on the fixing legs (22), and the wooden board ( 1) is engaged with a limit block (23), a side wall of the upper cover (212) is provided with a rectangular opening, the operating chamber (21) is connected to the paint spraying mechanism (3), the upper cover (212) is connected to the paint spraying mechanism (3), the operating chamber (21) is connected to the dehumidifier (5), the bottom plate (211) is connected to the dehumidifier (5), the operating chamber (21) is connected to the polishing device (6), the upper cover (212) is connected to the polishing device (6), the operating chamber (21) is connected to the dust removal mechanism (7), the upper cover (212) is connected to the dust removal mechanism (7), the operating chamber (21) is connected to the dehumidifier (5), and the bottom plate (211) is tightly connected to the dehumidifier (5).

2. The dust-free polishing composite wood board painting equipment according to claim 1, characterized in that: The paint spraying mechanism (3) comprises a gun body (31), a paint spraying nozzle (32), an air compressor (33), a main pipeline (34), a paint delivery auxiliary pipeline (35), a first regulating valve (36) and a paint storage tank (37); the paint spraying nozzle (32) and the gun body (31) are tightly connected; the air compressor (33) and the gun body (31) are tightly connected; the main pipeline (34) and the lower end of the gun body (31) are tightly connected; and a circular opening is provided on the main pipeline (34). The circular opening of the main pipeline (34) is located at an end away from the gun body (31); the paint delivery auxiliary pipeline (35) is tightly connected to the circular opening of the main pipeline (34); the paint delivery auxiliary pipeline (35) is tightly connected to the paint storage tank (37) away from the main pipeline (34); the first regulating valve (36) is tightly connected to the paint delivery auxiliary pipeline (35); the main pipeline (34) is connected to the nozzle cleaning mechanism (4); and the gun body (31) is connected to the nozzle cleaning mechanism (4).

3. The dust-free polishing composite wood board painting equipment according to claim 2, characterized in that: The paint spraying mechanism (3) further comprises a spraying device (38), wherein the spraying device (38) is tightly connected to the upper cover (212), and the spraying device (38) is connected to the gun body (31). The spraying device (38) comprises a first hydraulic cylinder (381), a drive motor (382), a movable track (383), a movable fixed block (384), and a movable block (385). The gun body (31) and the movable block (385) are tightly connected, the paint storage tank (37) and the movable fixed block (384) are tightly connected, the drive motor (382) and the upper cover (212) are tightly connected, the output end of the drive motor (382) and the movable track (383) are tightly connected, an end of the movable track (383) away from the drive motor (382) is rotatably connected to the upper cover (212), and a movable track (383) is provided on the movable track (383). The movable fixed block (384) has a thread, a through hole is provided in the middle, and a thread is provided on the inner wall of the through hole of the movable fixed block (384). The movable rail (383) and the movable fixed block (384) are meshed by threads. One end of the first hydraulic cylinder (381) and the movable fixed block (384) are fastened and connected through a support plate. A slide groove is provided under the movable fixed block (384), and blocks are provided at both ends of the slide groove of the movable fixed block (384). A protrusion is provided on the movable block (385), and the movable block (385) is slidably connected to the slide groove at the bottom of the movable fixed block (384) through the protrusion. The end of the first hydraulic cylinder (381) away from the support plate is fastened and connected to the movable block (385). The spraying device (38) is connected to the nozzle cleaning mechanism (4), and the movable fixed block (384) is connected to the nozzle cleaning mechanism (4).

4. The dust-free polishing composite wood board painting equipment according to claim 1, characterized in that: The nozzle cleaning mechanism (4) comprises a second regulating valve (41), a water storage tank (42) and a water supply auxiliary pipe (43); the water supply auxiliary pipe (43) is tightly connected to an end of the main pipe (34) away from the gun body (31); the second regulating valve (41) is tightly connected to the water supply auxiliary pipe (43); the water storage tank (42) is tightly connected to a movable fixed block (384); and the water storage tank (42) is tightly connected to an end of the water supply auxiliary pipe (43) away from the main pipe (34).

5. The dust-free polishing composite wood board painting equipment according to claim 1, characterized in that: The polishing device (6) comprises a polishing machine (61), a second hydraulic cylinder (62) and an ultrasonic thickness gauge, wherein one end of the second hydraulic cylinder (62) is tightly connected to the side wall of the upper cover (212), and one end of the second hydraulic cylinder (62) away from the upper cover (212) is tightly connected to the polishing machine (61), and an ultrasonic thickness gauge is provided on the top of the upper cover (212), and the ultrasonic thickness gauge faces the wooden board (1).

6. The dust-free polishing composite wood board painting equipment according to claim 1, characterized in that: The dust removal mechanism (7) comprises a fan (71), an air supply duct (72), an air outlet nozzle (73) and an air pressure plate (74); the fan (71) is disposed on the outer wall of the upper cover (212); the fan (71) is tightly connected to the outer wall of the upper cover (212); one end of the air supply duct (72) is tightly connected to the fan (71); one end of the air supply duct (72) away from the fan (71) is tightly connected to the air outlet nozzle (73); the end of the air outlet nozzle (73) has a rectangular cross-section; the air outlet nozzle (73) is tightly connected to a rectangular opening on the side wall of the upper cover (212); two air pressure plates (74) are provided; the two air pressure plates (74) are tightly connected to the upper and lower sides of the rectangular opening of the upper cover (212), respectively; the distance between the two air pressure plates (74) gradually decreases as they are away from the rectangular opening; the distance between the two air pressure plates (74) away from one end of the rectangular opening is half the height of the rectangular opening.

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