Building construction material surface spraying device

Abstract

The invention discloses a building construction material surface spraying device and relates to the technical field of material spraying, the building construction material surface spraying device comprises a spraying box and a conveying mechanism, the conveying mechanism penetrates through the middle of the spraying box, an exhaust assembly is arranged on the side wall of the spraying box, a control panel is arranged on the outer wall of the spraying box, and a drying plate is arranged on one side of the outer wall of the spraying box; a drying lamp is arranged in the drying plate, a spraying mechanism and an adjusting mechanism are slidably arranged in the spraying box through a sliding rail, a paint box is arranged in the middle of the top of the spraying box, and a part to be coated is arranged at the top of the conveying mechanism. By arranging the adjusting mechanism, materials of different sizes can be conveniently sprayed, air in the spraying box is exhausted through the air exhaust assembly by arranging the air exhaust assembly, so that toxic gas possibly existing in the spraying box is treated, and by arranging the control valve, a spray head is controlled to spray paint and automatically clean the spray head, so that the spraying efficiency is improved. And by arranging the conveying mechanism, the to-be-coated part can be conveyed.

Description

Technical Field

[0001] The invention relates to the technical field of material spraying, in particular to a surface spraying device for building construction materials. Background Art

[0002] During the entire construction period, the material with the longest use time is the building fence. In order to ensure construction safety and prevent non-staff from entering, the construction site needs to be fenced off in the early stage of construction. Depending on the construction period, the fence may be used for several years. Since most building fences are assembled from steel pipes and metal plates, they cannot shelter from the wind and rain and are subjected to wind, sun, rain, corrosion, etc. for a long time. In order to improve the aesthetics and anti-corrosion performance, the surface of this construction material needs to be painted.

[0003] At present, when spraying the iron sheet of the outer wall of the enclosure, in order to ensure the aesthetics of the enclosure, green paint is generally used on the outer side of the enclosure and ordinary silver-white paint is used on the inner side. Due to the different colors on the two sides, when spraying the enclosure surface, both sides need to be sprayed separately. However, due to the different sizes of the enclosure plates, the existing spraying device is not convenient for adjusting the spraying distance when spraying enclosure plates of different sizes. The spraying quality can only be ensured by increasing the spraying distance. The nozzle has to continue to move for a distance after passing the edge of the enclosure, resulting in a large amount of paint waste. In addition, since the paint is easy to solidify after contacting the air, each time the nozzle stops working for a period of time after use, the solidified paint will cause the nozzle to be blocked, affecting the subsequent spraying operation. Summary of the invention

[0004] 1. Technical issues to be resolved In view of the deficiencies in the prior art, the present invention provides a surface spraying device for building construction materials, which has the advantages of being able to easily adjust the size and prevent the nozzle from being blocked, thereby solving the problems raised in the background technology.

[0005] (II) Technical solution In order to achieve the above-mentioned purpose of being able to conveniently adjust the size and prevent the nozzle from being blocked, the present invention provides the following technical solutions: a surface spraying device for building construction materials, comprising a spray box and a conveying mechanism, the conveying mechanism passes through the middle of the spray box, the side wall of the spray box is provided with an exhaust assembly, the outer wall of the spray box is provided with a control panel, a drying plate is provided on one side of the outer wall of the spray box, a drying lamp is provided inside the drying plate, a spray mechanism and an adjustment mechanism are slidably provided inside the spray box through a sliding rail, a paint box is provided in the middle of the top of the spray box, and a workpiece to be painted is provided on the top of the conveying mechanism; The spraying mechanism comprises a reciprocating box slidably arranged on a sliding rail, a bifurcated pipe is arranged on the top of the reciprocating box, the top of the bifurcated pipe is connected to a high-pressure pump inside the paint box through a high-pressure pipe, a control valve is arranged in the middle of the bifurcated pipe, and a spray head connected to the bottom of the bifurcated pipe is arranged at the bottom of the reciprocating box; The adjustment mechanism comprises an adjustment plate slidably arranged on the sliding rail, one side of the adjustment plate is connected to a fine-tuning plate via an adjustment spring, the fine-tuning plate is sleeved on the sliding rail, a wheel axle is arranged at the bottom of the fine-tuning plate, and a clamping wheel for clamping the workpiece to be coated is arranged in the middle of the wheel axle via a bearing; Both sides of the reciprocating box are provided with clamping switches, which are electrically connected to the control panel. The reciprocating box is arranged in an I-shape so that the fine-tuning plate can be connected to the clamping switch.

[0006] Preferably, an adjustment frame is provided on the outer wall of the spray box, an adjustment chain is provided inside the adjustment frame, one end of the adjustment chain passes through the side wall of the spray box and is fixedly connected to the adjustment plate, an indicator needle is provided on the top of the other end of the adjustment chain, and a scale used in conjunction with the indicator needle is provided on the top of the adjustment frame.

[0007] Preferably, a sprocket meshing with the adjustment chain is provided inside the adjustment frame, one side of the sprocket is connected to the adjustment wheel via a rotating shaft, a spline cylinder is provided on the side wall of the adjustment frame, the inner wall of the spline cylinder is spline-connected to a spline column, a spline hole matching the spline column is provided on the other side of the sprocket, a locking column passing through the spline cylinder is movably connected to the middle part of the spline column, and a locking elastic member is sleeved on the outside of the locking column for pushing the spline column toward the sprocket.

[0008] Preferably, the exhaust assembly includes a fan arranged in the side wall of the spray box, the outer wall of the spray box is provided with a protective net to protect the fan, the inner wall of the spray box is connected with a telescopic hose connected to the fan, the movable end of the telescopic hose is connected to the bottom of the wheel axle through an air inlet tube, and an activated carbon net is provided inside the air inlet tube.

[0009] Preferably, a driving tooth groove is arranged on the top of the sliding rail, a moving motor is arranged in the middle of the reciprocating box, and the output end of the moving motor is key-connected with a moving gear meshing with the driving tooth groove.

[0010] Preferably, the conveying mechanism includes two symmetrically arranged conveying frames, conveying wheels are arranged inside the two ends of the conveying frames through bearings, a conveying belt is arranged outside the conveying wheels, and a conveying motor for driving the conveying wheels to rotate is arranged between the two conveying frames.

[0011] Preferably, connecting plates are arranged at equal intervals on one side of the conveyor belt, and a vacuum pump for adsorbing the workpiece to be coated by negative pressure is arranged in the middle of the connecting plate.

[0012] Preferably, an adsorption tube is provided on the top of the vacuum cylinder, a rubber suction cup is provided on the top of the adsorption tube, the inner top wall of the vacuum cylinder is connected to a sealing column through a compression spring, the middle of the bottom of the sealing column is connected to a rolling wheel through a wheel column, and a connecting plate for controlling the rolling trajectory of the rolling wheel is provided in the middle of the conveying frame.

[0013] Preferably, a spring groove is provided on the top wall of the adsorption tube, the inner bottom wall of the spring groove is connected to an adsorption magnet via an ejection spring, a serrated clamping portion is provided on the top of the adsorption magnet, and an intermediate magnet that attracts the adsorption magnet is provided in the middle of the top of the sealing column.

[0014] Preferably, a compression cylinder is provided on the side wall of the reciprocating box, a sealing plug is movably provided inside the compression cylinder, a one-way valve is provided in the middle of the sealing plug, a pressure cylinder penetrating the reciprocating box is provided on one side of the sealing plug, a reset elastic part is sleeved on the outside of the pressure cylinder, and an air inlet hole is provided on the outer side wall of the pressure cylinder.

[0015] Compared with the prior art, the present invention provides a surface spraying device for building construction materials, which has the following beneficial effects: The surface spraying device for construction materials can conveniently spray materials of different sizes by arranging an adjustment mechanism. Moreover, when spraying materials of different sizes, it is only necessary to roughly adjust the adjustment wheel. After the material is placed as centered as possible on the top of the conveying mechanism, the adjustment spring can be compressed through the cooperation of the material and the clamping wheel, so that the width of the material is just the right width between the two clamping wheels, thereby reducing cumbersome operating steps and further improving the accuracy of size adjustment.

[0016] The surface spraying device for building construction materials can discharge the air inside the spray box through the exhaust assembly by providing an exhaust assembly, thereby treating toxic gases that may exist inside the spray box, and when purifying the air inside the spray box, the end of the air inlet cylinder is moved by using an adjustment mechanism to make the air inlet cylinder as close to the spraying area as possible, thereby further improving the effect of internal air treatment.

[0017] The surface spraying device for construction materials can control the spraying of paint by the nozzle and automatically clean the nozzle by setting a control valve. After the position of the adjustment mechanism is adjusted, the spraying timing of the nozzle is controlled according to the connection state of the compression switch. At the same time, the adjustment plate can be used to push the compression cylinder. After the nozzle stops spraying, the compressed air stored in the compression cylinder is used to clean the nozzle, thereby further achieving the purpose of preventing the paint inside the nozzle from solidifying and clogging.

[0018] The surface spraying device for construction materials can transport the workpiece to be coated by arranging a conveying mechanism, and can firmly adsorb the workpiece to be coated on the top of the rubber suction cup by arranging an air pump in cooperation with the stacking arranged on the top of the connecting frame plate. Under the action of the adsorption magnet, the sealing between the rubber suction cup and the workpiece to be coated can be further increased, thereby further achieving the purpose of improving the transport capacity of the conveying mechanism for the workpiece to be coated. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a top view of the three-dimensional structure of the present invention; Figure 2 This is a schematic diagram of the internal three-dimensional structure of the spray box of the present invention; Figure 3 It is a schematic diagram of the three-dimensional structure of the adjustment mechanism of the present invention; Figure 4 This is a schematic diagram of the cross-sectional structure of the adjustment mechanism of the present invention; Figure 5 This is a schematic diagram of the three-dimensional structure of the adjustment wheel of the present invention; Figure 6 It is a schematic diagram of the cross-sectional structure of the sprocket of the present invention; Figure 7 It is a schematic diagram of the three-dimensional structure of the spraying mechanism of the present invention; Figure 8 It is a schematic diagram of the cross-sectional structure of the spraying mechanism of the present invention; Fig. 9 It is a schematic diagram of the cross-sectional structure of the compression switch of the present invention; Fig.10 It is a schematic diagram of the structure of the spraying mechanism and the adjustment mechanism of the present invention; Fig.11 It is a schematic diagram of the cross-sectional structure of the transmission mechanism of the present invention; Fig.12 It is a schematic diagram of the cross-sectional structure of the vacuum cylinder of the present invention; Fig.13 It is a schematic diagram of the cross-sectional structure of the drying plate of the present invention.

[0020] In the figure, 1, spray box; 101, sliding rail; 2, exhaust assembly; 201, air inlet; 202, activated carbon net; 203, telescopic hose; 204, fan; 205, protective net; 3, control panel; 4, drying plate; 401, drying lamp; 5, conveying mechanism; 501, conveying motor; 502, conveying rack; 503, conveying wheel; 504, conveyor belt; 505, connecting plate; 506, vacuum pump; 5060, adsorption magnet; 5061, sealing column; 5062, compression spring; 5063, wheel column; 5064, rolling wheel; 5065, adsorption tube; 5066, rubber suction cup; 5067, middle magnet; 5068, spring slot; 5069, ejection spring; 507, connecting plate; 6, paint box; 7, to be painted 8. Spraying mechanism; 800. Reciprocating box; 801. Driving tooth groove; 802. High-pressure pipe; 803. Bifurcated pipe; 804. Spray head; 805. Pressing cylinder; 806. Air inlet; 807. Pressing switch; 808. Compression cylinder; 809. Sealing plug; 810. One-way valve; 811. Reset elastic member; 812. Moving motor; 813. Moving gear; 814. Control valve; 9. Adjusting mechanism; 901. Adjusting plate; 902. Adjusting spring; 903. Fine-tuning plate; 904. Wheel axle; 905. Clamping wheel; 906. Adjusting frame; 907. Adjusting chain; 908. Adjusting wheel; 909. Indicator needle; 911. Sprocket; 912. Spline cylinder; 913. Locking column; 914. Locking elastic member; 915. Spline column. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] For an embodiment of the present invention, please refer to Figures 1 to 13 , including a spray box 1 and a conveying mechanism 5, the conveying mechanism 5 passes through the middle of the spray box 1, the side wall of the spray box 1 is provided with an exhaust assembly 2, the outer wall of the spray box 1 is provided with a control panel 3, a drying plate 4 is provided on one side of the outer wall of the spray box 1, a drying lamp 401 is provided inside the drying plate 4, a spraying mechanism 8 and an adjustment mechanism 9 are slidably provided inside the spray box 1 through a sliding rail 101, a paint box 6 is provided in the middle of the top of the spray box 1, and a workpiece to be painted 7 is provided on the top of the conveying mechanism 5; During specific use, the workpiece 7 to be coated is placed on the top of the conveying mechanism 5, and the conveying mechanism 5 is controlled by the control panel 3 to transport the workpiece 7 to be coated to the inside of the spray box 1. The workpiece 7 to be coated is clamped by the adjustment mechanism 9, and the paint inside the paint box 6 is sprayed onto the workpiece 7 to be coated through the spraying mechanism 8. The air inside the spray box 1 is discharged through the exhaust assembly 2, and at the same time, the drying lamp 401 arranged inside the drying plate 4 dries the sprayed workpiece 7 to be coated.

[0023] like Figure 7-Figure 9 As shown, the spraying mechanism 8 includes a reciprocating box 800 slidably disposed on the sliding rail 101, a bifurcated pipe 803 is disposed on the top of the reciprocating box 800, the top of the bifurcated pipe 803 is connected to the high-pressure pump inside the paint box 6 through a high-pressure pipe 802, a control valve 814 is disposed in the middle of the bifurcated pipe 803, and a nozzle 804 connected to the bottom of the bifurcated pipe 803 is disposed at the bottom of the reciprocating box 800; When in use, the reciprocating box 800 moves on the sliding rail 101 , and the paint in the paint box 6 is transported to the inside of the bifurcated pipe 803 through the high-pressure pipe 802 . When the control valve 814 is opened, the high-pressure paint is sprayed out through the nozzle 804 .

[0024] like Figure 2-Figure 4 As shown, the adjustment mechanism 9 includes an adjustment plate 901 slidably disposed on the slide rail 101, one side of the adjustment plate 901 is connected to a fine-tuning plate 903 via an adjustment spring 902, the fine-tuning plate 903 is sleeved on the slide rail 101, a wheel shaft 904 is disposed at the bottom of the fine-tuning plate 903, and a clamping wheel 905 for clamping the workpiece 7 to be coated is disposed in the middle of the wheel shaft 904 via a bearing; like Figure 9-10 As shown, a clamping switch 807 is provided on both sides of the reciprocating box 800 , and the clamping switch 807 is electrically connected to the control panel 3 . The reciprocating box 800 is arranged in an I-shaped shape so that the fine-tuning plate 903 can be connected to the clamping switch 807 .

[0025] A compression cylinder 808 is provided on the side wall of the reciprocating box 800, a sealing plug 809 is movably provided inside the compression cylinder 808, a one-way valve 810 is provided in the middle of the sealing plug 809, a compression cylinder 805 that passes through the reciprocating box 800 is provided on one side of the sealing plug 809, a reset elastic member 811 is sleeved on the outside of the compression cylinder 805, and an air inlet hole 806 is provided on the outer side wall of the compression cylinder 805.

[0026] When in use, the adjustment plate 901 is moved on the sliding rail 101, and the fine-tuning plate 903 is moved synchronously by using the adjustment spring 902. At the same time, the clamping wheel 905 on the wheel axle 904 will also move accordingly, so that the distance between the two clamping wheels 905 is slightly smaller than the width of the workpiece 7 to be coated. After the workpiece 7 to be coated is transported to the interior of the spray box 1 by the conveying mechanism 5, since the distance between the clamping wheels 905 is smaller than the width of the workpiece 7 to be coated, the two clamping wheels 905 can be moved away from each other after the workpiece 7 to be coated contacts the two clamping wheels 905, so that the adjustment spring 902 is compressed. According to the distance between the two clamping wheels 905 at this time, the spraying width of the workpiece 7 to be coated is accurately adjusted. When the reciprocating box 800 moves for spraying, the following situation occurs: Fig.10 When the state shown is reached, the clamping switch 807 is pressed on the side of the fine-tuning plate 903. At the same time, the compression cylinder 805 on one side has been pressed into the compression cylinder 808 due to the obstruction of the adjustment plate 901, so that high-pressure gas is formed inside the compression cylinder 808. When the clamping switch 807 is pressed on the side of the fine-tuning plate 903, it means that the nozzle 804 has just reached the top of the edge of the workpiece 7 to be coated. By connecting the clamping switch 807, the control panel 3 can also control the working state of the control valve 814, so that the control valve 814 disconnects the bifurcated pipe 803 and connects the compression cylinder 808 with the nozzle 804. The high-pressure air inside the compression cylinder 808 is used to discharge the remaining air inside the nozzle 804 to prevent the nozzle 804 from being blocked due to the solidification of the remaining paint inside the nozzle 804. At the same time, the purpose of automatically adjusting the spraying width of the device through simple operation can also be achieved.

[0027] like Figure 4-Figure 5 As shown, an outer wall of the spray box 1 is provided with an adjustment frame 906, an adjustment chain 907 is provided inside the adjustment frame 906, one end of the adjustment chain 907 passes through the side wall of the spray box 1 and is fixedly connected to the adjustment plate 901, an indicator needle 909 is provided on the top of the other end of the adjustment chain 907, and a scale used in conjunction with the indicator needle 909 is provided on the top of the adjustment frame 906.

[0028] like Figure 5-Figure 6 As shown, a sprocket 911 meshing with an adjustment chain 907 is provided inside the adjustment frame 906, one side of the sprocket 911 is connected to an adjustment wheel 908 via a rotating shaft, a spline cylinder 912 is provided on the side wall of the adjustment frame 906, a spline column 915 is splined on the inner wall of the spline cylinder 912, a spline hole matching with the spline column 915 is provided on the other side of the sprocket 911, a locking column 913 penetrating through the spline cylinder 912 is movably connected to the middle part of the spline column 915, and a locking elastic member 914 is sleeved on the outer side of the locking column 913 for pushing the spline column 915 toward the sprocket 911.

[0029] In specific use, when the adjustment mechanism 9 is adjusted, Figure 6As shown, after the locking column 913 is pulled outward and the spline column 915 is completely separated from the sprocket 911, the adjustment chain 907 can be moved by rotating the adjustment wheel 908. Figure 4 and Figure 5 As shown, by cooperating with the indicator needle 909 and the adjustment chain 907, the clamping wheel 905 is adjusted to a position where the distance between the two clamping wheels 905 is slightly smaller than the distance to the workpiece 7 to be coated, ensuring that the workpiece 7 to be coated can smoothly enter between the two clamping wheels 905 and that the adjustment spring 902 is compressed after entering. After the position of the clamping wheel 905 is adjusted, the locking column 913 can be released to fix the position of the clamping wheel 905.

[0030] like Figure 2 and Figure 4 As shown, the exhaust assembly 2 includes a fan 204 arranged in the side wall of the spray box 1, the outer wall of the spray box 1 is provided with a protective net 205 for protecting the fan 204, the inner wall of the spray box 1 is connected with a telescopic hose 203 connected with the fan 204, the movable end of the telescopic hose 203 is connected to the bottom of the wheel axle 904 through the air inlet tube 201, and the interior of the air inlet tube 201 is provided with an activated carbon net 202.

[0031] When spraying the surface of the workpiece 7, the fan 204 is started by controlling the control panel 3 to extract the air inside the telescopic hose 203 to the outside. At the same time, since the adjustment mechanism 9 is being adjusted, the wheel axle 904 can drive the air inlet tube 201 to move its position at the same time, and when the clamping wheel 905 clamps the workpiece 7 to be coated, the air inlet tube 201 can also be fine-tuned to ensure that the air inlet tube 201 is always close to the bottom edge of the workpiece 7 to be coated. While extracting the air inside the spray box 1, the paint that falls when spraying the edge of the workpiece 7 to be coated can also be collected inside the air inlet tube 201, so that the toxic gas can be treated with the activated carbon net 202, thereby preventing the toxic gas from affecting the health of the staff.

[0032] like Figure 3 and Fig. 9 As shown, a driving tooth groove 801 is provided on the top of the sliding rail 101 , a moving motor 812 is provided in the middle of the reciprocating box 800 , and a moving gear 813 meshing with the driving tooth groove 801 is key-connected to the output end of the moving motor 812 .

[0033] When spraying is performed using the spray mechanism 8, the control panel 3 is used to control the movement of the moving motor 812 to rotate, so that the moving gear 813 cooperates with the driving tooth groove 801 to drive the reciprocating box 800 to move. After the clamping switch 807 is pressed, the control panel 3 is used to control the conveying mechanism 5 to move the workpiece 7 to be coated a specified distance, and then the moving motor 812 is controlled to reverse to return the reciprocating box 800, thereby achieving the purpose of uniformly spraying the surface of the workpiece 7 to be coated by the reciprocating movement of the reciprocating box 800.

[0034] like Figure 1 and Fig.11 As shown, the conveying mechanism 5 includes two symmetrically arranged conveying frames 502, conveying wheels 503 are arranged inside the two ends of the conveying frames 502 through bearings, a conveying belt 504 is arranged outside the conveying wheel 503, and a conveying motor 501 is arranged between the two conveying frames 502 to drive the conveying wheel 503 to rotate.

[0035] like Fig.11 As shown, connecting plates 505 are arranged at equal intervals on one side of the conveyor belt 504, and a suction cylinder 506 for adsorbing the workpiece 7 to be coated by negative pressure is arranged in the middle of the connecting plate 505.

[0036] like Fig.12 As shown, an adsorption tube 5065 is arranged on the top of the vacuum cylinder 506, and a rubber suction cup 5066 is arranged on the top of the adsorption tube 5065. The inner top wall of the vacuum cylinder 506 is connected to a sealing column 5061 via a compression spring 5062. The middle of the bottom of the sealing column 5061 is connected to a rolling wheel 5064 via a wheel column 5063. A connecting plate 507 for controlling the rolling trajectory of the rolling wheel 5064 is arranged in the middle of the conveying frame 502.

[0037] like Fig.12 As shown, a spring groove 5068 is provided on the top wall of the adsorption tube 5065, and the inner bottom wall of the spring groove 5068 is connected to the adsorption magnet 5060 via a ejection spring 5069. A serrated clamping portion is provided on the top of the adsorption magnet 5060, and an intermediate magnet 5067 that attracts the adsorption magnet 5060 is provided in the middle of the top of the sealing column 5061.

[0038] When the workpiece 7 to be coated is transported by the conveying mechanism 5, the rotation of the conveying motor 501 is controlled by the control panel 3. After the staff puts the workpiece 7 to be coated in the center on the top of the conveying mechanism 5, the conveying wheel 503 is driven to rotate by the conveying mechanism 5, and the conveying wheel 503 drives the conveyor belt 504 to rotate, so that the connecting plate 505 moves. During the movement of the connecting plate 505, the rolling wheel 5064 moves along the track at the top of the connecting plate 507. During the downward movement of the rolling wheel 5064, negative pressure is gradually formed inside the adsorption tube 5065. At the same time, due to the drop in the position of the sealing column 5061, it no longer attracts the bottom of the adsorption magnet 5060, and the adsorption magnet 5060 is also moved upward under the action of the ejection spring 5069. When there is metal iron inside the workpiece 7 to be coated, it will be further pressed against the bottom of the rubber suction cup 5066, so that the serrated pressing part at the top of the adsorption magnet 5060 forms a seal with the rubber suction cup 5066, so that the workpiece 7 to be coated can firmly follow the movement of the conveying mechanism 5.

[0039] The specific steps and principles of this device are as follows: First, the adjustment mechanism 9 is adjusted according to the width of the workpiece 7 to be sprayed, such as Figure 6 As shown, after the locking column 913 is pulled outward and the spline column 915 is completely separated from the sprocket 911, the adjustment chain 907 can be moved by rotating the adjustment wheel 908. Figure 4 and Figure 5 As shown, by cooperating with the indicator needle 909 and the adjustment chain 907, the clamping wheel 905 is adjusted to a position where the distance between the two clamping wheels 905 is slightly smaller than the distance between the workpiece 7 to be coated, so as to ensure that the workpiece 7 to be coated can smoothly enter between the two clamping wheels 905, and after entering, the adjustment spring 902 can be compressed. After the position of the clamping wheel 905 is adjusted, the locking column 913 can be released to fix the position of the clamping wheel 905. When the workpiece 7 to be coated is transported by the conveying mechanism 5, the rotation of the conveying motor 501 is controlled by the control panel 3. After the staff puts the workpiece 7 to be coated in the center on the top of the conveying mechanism 5, the conveying wheel 503 is driven to rotate by the conveying mechanism 5, and the conveying wheel 503 drives the conveyor belt 504 to rotate, so that the connecting plate 505 moves. During the movement of the connecting plate 505, the rolling wheel 5064 moves along the track on the top of the connecting plate 507. During the downward movement of the rolling wheel 5064, negative pressure is gradually formed inside the adsorption tube 5065. At the same time, due to the drop in the position of the sealing column 5061, the bottom of the adsorption magnet 5060 is no longer attracted, and the adsorption magnet 5060 is also moved upward under the action of the ejection spring 5069. When there is metal iron inside the workpiece 7 to be coated, it is further pressed against the bottom of the rubber suction cup 5066, so that the serrated pressing part on the top of the adsorption magnet 5060 forms a seal with the rubber suction cup 5066, so that the workpiece 7 to be coated can firmly follow the movement of the conveying mechanism 5. After the workpiece 7 to be painted enters the spray box 1, when the workpiece 7 to be painted is sprayed, the control panel 3 is used to control the conveying motor 501 to stop moving, and at the same time, the moving motor 812 is rotated, so that the moving gear 813 cooperates with the driving tooth groove 801 to drive the reciprocating box 800 to move, and at the same time, the high-pressure pump inside the paint box 6 pumps out the paint, and the paint is transported to the bifurcated pipe 803 through the high-pressure pipe 802. When the control valve 814 is opened, the high-pressure paint is sprayed through the nozzle 804, so that the reciprocating box 800 moves while spraying the workpiece 7 to be painted at the bottom, until the following situation appears: Fig.10 In the state shown, at this time, the compression cylinder 805 on one side has been pressed into the compression cylinder 808 due to the obstruction of the adjustment plate 901, so that high-pressure gas is formed inside the compression cylinder 808. When the compression switch 807 is pressed on the side of the fine-tuning plate 903, it means that the nozzle 804 has just reached the upper edge of the workpiece 7 to be coated. By connecting the compression switch 807, the control panel 3 can also control the working state of the control valve 814, so that the control valve 814 disconnects the bifurcated pipe 803 and connects the compression cylinder 808 with the nozzle 804. The high-pressure air inside the compression cylinder 808 is used to discharge the remaining air inside the nozzle 804, so as to prevent the nozzle 804 from being blocked due to the solidification of the remaining paint inside the nozzle 804. When the pressing switch 807 is turned on, the moving motor 812 stops rotating, and the conveying mechanism 5 transports the workpiece 7 to be coated by a specified distance, which is less than the width swept by the nozzle 804 during the spraying process. Then, the control panel 3 controls the reciprocating box 800 to return. During the return of the reciprocating box 800, the resetting elastic member 811 can gradually reset the pressing cylinder 805 outward, so that external air can enter the inside of the pressing cylinder 805 through the air inlet 806, and then enter the inside of the compression cylinder 808 through the one-way valve 810, so that there is enough air inside the compression cylinder 808 to be compressed. During the whole process of reciprocating spraying of the surface of the workpiece 7, Figure 4 As shown, the air inside the telescopic hose 203 is extracted to the outside through the fan 204. At the same time, since the adjustment mechanism 9 is being adjusted, the wheel axle 904 can drive the air inlet tube 201 to move its position at the same time, and when the clamping wheel 905 clamps the workpiece 7 to be coated, the air inlet tube 201 can also be fine-tuned accordingly, so as to ensure that the air inlet tube 201 is always close to the bottom edge of the workpiece 7 to be coated. While the air inside the spray box 1 is extracted, the paint that falls when spraying the edge of the workpiece 7 to be coated can also be collected inside the air inlet tube 201, so that the toxic gas can be treated with the activated carbon net 202, thereby preventing the toxic gas from affecting the health of the staff.

[0040] The above description is only a preferred specific implementation mode of the present invention. Although the embodiments of the present invention have been shown and described, it can be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the attached claims and their equivalents. The protection scope of the present invention is not limited to the above embodiments. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, can make equivalent substitutions or changes according to the technical solution and inventive concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A surface spraying device for building construction materials, comprising a spray box (1) and a conveying mechanism (5), wherein the conveying mechanism (5) passes through the middle of the spray box (1), an exhaust assembly (2) is arranged on the side wall of the spray box (1), a control panel (3) is arranged on the outer wall of the spray box (1), a drying plate (4) is arranged on one side of the outer wall of the spray box (1), and a drying lamp (401) is arranged inside the drying plate (4), characterized in that: The spray box (1) is provided with a spray mechanism (8) and an adjustment mechanism (9) slidably arranged inside via a sliding rail (101); a paint box (6) is arranged in the middle of the top of the spray box (1); and a workpiece to be painted (7) is arranged on the top of the conveying mechanism (5); The spraying mechanism (8) comprises a reciprocating box (800) slidably arranged on a sliding rail (101); a bifurcated pipe (803) is arranged at the top of the reciprocating box (800); the top of the bifurcated pipe (803) is connected to a high-pressure pump inside the paint box (6) via a high-pressure pipe (802); a control valve (814) is arranged in the middle of the bifurcated pipe (803); and a spray head (804) connected to the bottom of the bifurcated pipe (803) is arranged at the bottom of the reciprocating box (800); The adjustment mechanism (9) comprises an adjustment plate (901) slidably arranged on a sliding rail (101); one side of the adjustment plate (901) is connected to a fine-tuning plate (903) via an adjustment spring (902); the fine-tuning plate (903) is sleeved on the sliding rail (101); a wheel axle (904) is arranged at the bottom of the fine-tuning plate (903); a clamping wheel (905) for clamping the workpiece (7) to be coated is arranged in the middle of the wheel axle (904) via a bearing; Both sides of the reciprocating box (800) are provided with a clamping switch (807), the clamping switch (807) being electrically connected to the control panel (3), and the reciprocating box (800) being arranged in an I-shaped shape so that the fine-tuning plate (903) can be connected to the clamping switch (807).

2. A construction material surface spraying device according to claim 1, characterized in that: The outer wall of the spray box (1) is provided with an adjustment frame (906), the interior of the adjustment frame (906) is provided with an adjustment chain (907), one end of the adjustment chain (907) passes through the side wall of the spray box (1) and is fixedly connected to the adjustment plate (901), the top of the other end of the adjustment chain (907) is provided with an indicator needle (909), and the top of the adjustment frame (906) is provided with a scale for use with the indicator needle (909).

3. A construction material surface spraying device according to claim 2, characterized in that: A sprocket (911) meshing with an adjustment chain (907) is disposed inside the adjustment frame (906); one side of the sprocket (911) is connected to an adjustment wheel (908) via a rotating shaft; a spline cylinder (912) is disposed on a side wall of the adjustment frame (906); a spline column (915) is spline-connected to the inner wall of the spline cylinder (912); a spline hole matching the spline column (915) is disposed on the other side of the sprocket (911); a locking column (913) penetrating the spline cylinder (912) is movably connected to the middle of the spline column (915); and a locking elastic member (914) for pushing the spline column (915) toward the sprocket (911) is sleeved on the outside of the locking column (913).

4. A construction material surface spraying device according to claim 1, characterized in that: The exhaust assembly (2) comprises a fan (204) arranged in a side wall of a spray box (1); a protective net (205) for protecting the fan (204) is arranged on the outer wall of the spray box (1); a telescopic hose (203) in communication with the fan (204) is connected to the inner wall of the spray box (1); a movable end of the telescopic hose (203) is connected to the bottom of the wheel axle (904) via an air inlet cylinder (201); and an activated carbon net (202) is arranged inside the air inlet cylinder (201).

5. A construction material surface spraying device according to claim 1, characterized in that: A driving tooth groove (801) is arranged at the top of the sliding rail (101), a moving motor (812) is arranged in the middle of the reciprocating box (800), and a moving gear (813) meshing with the driving tooth groove (801) is key-connected to the output end of the moving motor (812).

6. A construction material surface spraying device according to claim 1, characterized in that: The conveying mechanism (5) comprises two symmetrically arranged conveying racks (502), conveying wheels (503) are arranged inside the two ends of the conveying racks (502) via bearings, a conveying belt (504) is arranged outside the conveying wheel (503), and a conveying motor (501) is arranged between the two conveying racks (502) for driving the conveying wheel (503) to rotate.

7. A construction material surface spraying device according to claim 6, characterized in that: Connecting plates (505) are arranged at equal intervals on one side of the conveyor belt (504), and a suction cylinder (506) for adsorbing the workpiece (7) to be coated by negative pressure is arranged in the middle of the connecting plate (505).

8. A construction material surface spraying device according to claim 7, characterized in that: The top of the vacuum cylinder (506) is provided with an adsorption tube (5065), the top of the adsorption tube (5065) is provided with a rubber suction cup (5066), the inner top wall of the vacuum cylinder (506) is connected to a sealing column (5061) via a compression spring (5062), the middle of the bottom of the sealing column (5061) is connected to a rolling wheel (5064) via a wheel column (5063), and a connecting plate (507) for controlling the rolling track of the rolling wheel (5064) is provided in the middle of the conveying frame (502).

9. A construction material surface spraying device according to claim 8, characterized in that: The top wall of the adsorption tube (5065) is provided with a spring groove (5068), the inner bottom wall of the spring groove (5068) is connected to the adsorption magnet (5060) via an ejection spring (5069), the top of the adsorption magnet (5060) is provided with a sawtooth-shaped pressing portion, and the middle of the top of the sealing column (5061) is provided with an intermediate magnet (5067) that attracts the adsorption magnet (5060).

10. A construction material surface spraying device according to claim 1, characterized in that: The side wall of the reciprocating box (800) is provided with a compression cylinder (808), a sealing plug (809) is movably provided inside the compression cylinder (808), a one-way valve (810) is provided in the middle of the sealing plug (809), a compression cylinder (805) penetrating the reciprocating box (800) is provided on one side of the sealing plug (809), a reset elastic member (811) is sleeved on the outside of the compression cylinder (805), and an air inlet hole (806) is provided on the outer side wall of the compression cylinder (805).

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