A building material surface spraying device

Abstract

This utility model relates to the technical field of building material processing equipment, and discloses a building material surface spraying device, including a frame and a conveyor belt. The top of the frame is equipped with a lifting and adjusting mechanism and a top cover for installing spraying components. The lifting and adjusting mechanism includes a telescopic component and a hydraulic push rod. A first telescopic tube is fixedly connected to a base plate, and an inner groove is formed inside the base plate. A second telescopic tube is fixedly connected to a top plate, which slides within the inner groove. The output end of the hydraulic push rod is connected to the second telescopic tube to drive the top cover to lift. Door curtains are connected to the front and rear sides of the top cover. A waste paint absorption mechanism, including an exhaust fan, a buffer box, and a water tank, is installed at the bottom of the frame. This utility model utilizes the sliding fit of the top plate within the inner groove of the base plate and the door curtain to form a dynamically closed spraying cavity, effectively preventing paint mist leakage. Combined with the multi-stage purification function of the waste paint absorption mechanism, it achieves efficient waste gas recovery and reduces environmental pollution.

Description

Technical Field

[0001] This utility model relates to the field of building material processing equipment technology, and in particular to a building material surface spraying device. Background Technology

[0002] Building materials require surface coating during production and processing to provide anti-corrosion, waterproofing, or decoration. Due to the diverse needs of construction projects, the thickness and specifications of the building materials used, such as boards or blocks, vary significantly. To ensure that the paint can be evenly covered on the surface of the building materials and achieve the best adhesion, the distance between the spray nozzle and the surface of the building materials must be strictly controlled during the spraying operation. This requires the spraying device to have a height adjustment function to flexibly adapt to building materials of different thicknesses and specifications.

[0003] In existing technologies, spraying devices struggle to maintain a tight seal in the spraying area when adjusting the height of the spraying components. Common lifting mechanisms, when driving the nozzle upwards to accommodate thicker building materials, fail to dynamically extend or automatically fill the height difference in the side walls of the spraying chamber. This results in open gaps or cracks on the sides of the spraying area, allowing large amounts of paint mist generated during high-pressure spraying to escape into the surrounding environment. This not only wastes expensive paint materials but also severely pollutes the production workshop environment and harms the respiratory health of on-site operators. Furthermore, suspended paint mist particles can easily form particulate defects if they re-settle on the undried coating surface, reducing product yield. Existing equipment lacks a design that can flexibly adjust the spraying height while maintaining a good seal on the sides of the working chamber.

[0004] Therefore, this utility model proposes a surface spraying device for building materials to overcome the shortcomings of the prior art. Utility Model Content

[0005] In view of the problem that existing building material surface spraying devices are unable to ensure the sealing of the spraying area when adjusting the spraying height to adapt to building materials of different thicknesses, resulting in paint mist leakage and environmental pollution, this utility model aims to provide a building material surface spraying device with an improved structure that can effectively solve the above problems.

[0006] This utility model provides a building material surface spraying device, including a frame and a conveyor belt device installed at the middle of the top of the frame, as well as a lifting and adjusting mechanism set on the left and right sides of the top of the frame.

[0007] The lifting and adjusting mechanism is fixedly connected to a top cover, and a spraying component is installed in the middle of the bottom wall of the top cover. The lifting and adjusting mechanism includes a telescopic component and a hydraulic push rod. The telescopic component includes a first telescopic tube and a second telescopic tube slidably connected inside the first telescopic tube. The first telescopic tube is fixed to the top of the left and right sides of the frame. A first connecting piece is fixedly connected to the top of the front side of the first telescopic tube. A base plate is fixedly connected between adjacent first connecting pieces. An inner groove for limiting is opened inside the base plate. A second connecting piece is fixedly connected to the front side of the outer wall of the second telescopic tube. A top plate is fixedly connected between adjacent second connecting pieces.

[0008] Furthermore, the top plate slides inside the inner groove, and the hydraulic push rod is fixedly connected to the left and right sides of the top of the frame. The output end of the hydraulic push rod is fixedly connected to the second connecting piece. When the second connecting piece and the second telescopic tube are driven to rise and fall by the hydraulic push rod, the top plate can slide in the inner groove and always maintain the shielding and sealing of the sides.

[0009] Preferably, a curtain is fixedly connected to both the front and rear sides of the top cover. The curtain extends vertically downwards and its bottom end is lower than the position of the spray nozzle of the spraying component. The curtain, together with the bottom plate and the top plate, forms a closed cavity to further prevent paint mist from spreading to the external environment.

[0010] Preferably, a waste paint absorption mechanism is installed on the front side of the bottom of the frame. The waste paint absorption mechanism includes an exhaust fan, which is fixedly installed on the front side of the bottom of the frame. The input and output ends of the exhaust fan are respectively connected to pipelines to provide negative pressure power for the flow of waste gas.

[0011] Preferably, one end of the exhaust fan is connected to a first connecting pipe, and the other end of the exhaust fan is connected to a second connecting pipe. The end of the first connecting pipe is connected to a water tank, which contains a dissolving solvent for chemically dissolving and purifying the pre-treated waste gas.

[0012] Preferably, the second connecting pipe is connected to a buffer box at its end, and a support leg is fixedly installed at each of the four corners of the bottom of the buffer box. The bottom of the support leg is supported on the ground or on the bottom extension structure of the frame, which is used to stably support the buffer box and provide gas-liquid separation space.

[0013] Preferably, baffles are fixedly connected to the left and right sides of the inner wall of the buffer box in an alternating manner. The baffles are inclined. The second connecting pipe is connected to the side wall of the buffer box and is located below the bottom baffle. It is used to change the airflow direction and use inertia to make the paint mist droplets impact and adhere to the surface of the baffle.

[0014] Preferably, a liquid collection tank is slidably connected to the bottom of the buffer tank, the liquid collection tank is located directly below the bottom baffle, and the second connecting pipe is located above the liquid collection tank, which is used to collect the waste paint liquid that slides down from the baffle for centralized cleaning.

[0015] Preferably, the top of the buffer box is connected to an exhaust pipe, which extends upward from the end away from the buffer box and penetrates the front side wall of the top cover. The inlet of the exhaust pipe faces the inside of the top cover and is used to draw paint-containing waste gas from the spraying area into the treatment system.

[0016] Preferably, the exhaust pipe is located inside the top cover and its end is connected to a screen. The screen covers the cross-section of the exhaust pipe's air inlet and is used to physically intercept and filter larger paint mist droplets at the source.

[0017] This utility model has the following beneficial effects:

[0018] 1. This utility model, by setting up a telescopic component consisting of a first telescopic tube and a second telescopic tube, and a side wall structure formed by the nesting and sliding of a bottom plate and a top plate, solves the problem that existing building material spraying devices are prone to sealing failure in the spraying area and causing paint mist leakage and environmental pollution when adjusting the nozzle height to adapt to building materials of different thicknesses. It achieves the effect of flexibly adjusting the spraying distance and improving process adaptability while always maintaining good sealing of the spraying cavity, effectively blocking paint diffusion, reducing raw material waste and improving the working environment.

[0019] 2. This utility model integrates a waste paint absorption mechanism, including a screen, buffer box, baffle and solvent water tank, at the bottom of the frame. It utilizes a multi-stage purification method combining physical interception, inertial sedimentation and chemical dissolution to solve the problems of traditional spraying equipment's single exhaust gas treatment, difficulty in completely removing tiny paint mist particles, easy emission pollution or secondary adhesion leading to coating defects. It achieves efficient capture and treatment of paint mist of different particle sizes, protects the exhaust equipment, reduces harmful gas emissions, improves product appearance quality and adhesion effect, and realizes the effect of green and environmentally friendly production. Attached Figure Description

[0020] Figure 1 This is a perspective view of a building material surface spraying device proposed in this utility model;

[0021] Figure 2 This is a structural cross-sectional view of a building material surface spraying device proposed in this utility model;

[0022] Figure 3 This is a diagram illustrating the lifting and adjusting mechanism of a building material surface spraying device proposed in this utility model;

[0023] Figure 4 This is a partial structural exploded view of the lifting and adjusting mechanism of a building material surface spraying device proposed in this utility model;

[0024] Figure 5 for Figure 6 Enlarged view of point A in the middle;

[0025] Figure 6This is a partial structural diagram of a building material surface spraying device proposed in this utility model;

[0026] Figure 7 This is a diagram illustrating the waste paint absorption mechanism of a building material surface spraying device proposed in this utility model;

[0027] Figure 8 This is a display diagram of a screen for a building material surface spraying device proposed in this utility model;

[0028] Figure 9 This is a partial structural cross-sectional view of a building material surface spraying device proposed in this utility model.

[0029] Legend:

[0030] 1. Frame; 2. Lifting and adjusting mechanism; 201. Telescopic assembly; 2011. First telescopic tube; 2012. Second telescopic tube; 2013. First connecting piece; 2014. Second connecting piece; 202. Hydraulic push rod; 203. Base plate; 204. Top plate; 205. Inner tank; 3. Waste paint absorption mechanism; 301. Exhaust fan; 302. First connecting pipe; 303. Water tank; 304. Second connecting pipe; 305. Liquid collection tank; 306. Support leg; 307. Buffer box; 308. Exhaust pipe; 309. Screen; 310. Baffle; 4. Conveyor belt device; 5. Top cover; 6. Spraying assembly; 7. Door curtain. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0032] Example:

[0033] Please refer to Figures 1 to 9 This utility model provides a building material surface spraying device, which aims to solve the problem in the prior art that the spraying equipment may cause sealing failure when adjusting the nozzle height to adapt to different specifications of building materials, resulting in paint mist leakage and environmental pollution.

[0034] Please refer to Figure 1 and Figure 2The building material surface spraying device includes a frame 1 as the main supporting structure and a conveyor belt device 4 installed at the top center of the frame 1 for conveying the materials to be processed. Lifting and adjusting mechanisms 2 are fixedly installed on the left and right sides of the top of the frame 1. A top cover 5 is fixedly connected to the top of the lifting and adjusting mechanism 2. A spraying component 6 is installed in the middle of the bottom wall of the top cover 5. In actual operation, the conveyor belt device 4 is responsible for smoothly conveying the building materials to the area directly below the spraying component 6. The lifting and adjusting mechanisms 2 on the left and right sides of the frame 1 work together to drive the top cover 5 and the spraying component 6 to move in the vertical direction, thereby changing the distance between the nozzle and the surface of the building material, so as to adapt to the spraying requirements of boards or blocks of different thicknesses and ensure the consistency of spraying quality.

[0035] Please refer to Figure 3 , Figure 4 and Figure 6 The lifting and adjusting mechanism 2 mainly consists of a telescopic assembly 201 and a hydraulic push rod 202 as a power source. The telescopic assembly 201 includes a first telescopic tube 2011 fixedly installed on the top of the left and right sides of the frame 1, and a second telescopic tube 2012 slidably connected inside the first telescopic tube 2011 and capable of moving up and down axially. The top end face of the second telescopic tube 2012 is fixedly connected to the top cover 5. The hydraulic push rod 202 is fixedly installed on the left and right sides of the top of the frame 1 and located in front of the telescopic assembly 201. The output end of the hydraulic push rod 202 is connected to the movable part of the telescopic assembly 201 through a connector to drive the lifting. In order to construct a dynamic sealing wall on the side, a first connecting piece 2013 is fixedly connected to the top of the front side of the first telescopic tube 2011. A base plate 203 is fixedly connected between two adjacent first connecting pieces 2013. The base plate 203 has an opening inside. The device has an inner groove 205 extending vertically. Correspondingly, a second connector 2014 is fixedly connected to the front side of the outer wall of the second telescopic tube 2012. The output end of the hydraulic push rod 202 is fixedly connected to the second connector 2014. A top plate 204 is fixedly connected between two adjacent second connectors 2014. The side of the top plate 204 is embedded and slidably fitted inside the inner groove 205 of the bottom plate 203. When the hydraulic push rod 202 drives the second connector 2014 to raise or lower the second telescopic tube 2012 and the top cover 5, the top plate 204 moves synchronously and maintains sliding contact in the inner groove 205 of the bottom plate 203. This flat plate structure in which the bottom plate 203 and the top plate 204 are nested and slide against each other can achieve the freedom of height adjustment while always maintaining a continuous solid shield on the side, effectively preventing paint mist from spreading outward from the gaps in the lifting mechanism.

[0036] As a preferred embodiment, to further enhance the sealing of the sprayed area, please refer to... Figure 1 and Figure 2The front and rear edges of the top cover 5 are fixedly connected with curtains 7. The curtains 7 extend vertically downwards and the bottom end is lower than the nozzle position of the spraying assembly 6. The curtains 7 are made of flexible material and can hang down naturally. Together with the bottom plate 203 on both sides, the top plate 204 and the conveyor belt device 4 below, they form a relatively independent spraying operation cavity, thereby maximizing the restriction of paint mist to a specific area.

[0037] As another preferred embodiment, to address the issue of waste paint mist generated during the spraying process, please refer to... Figure 7 , Figure 8 and Figure 9 A waste paint absorption mechanism 3 is installed on the bottom front side of frame 1. The waste paint absorption mechanism 3 includes an exhaust fan 301 fixedly installed on the bottom front side of frame 1. One end of the exhaust fan 301 is connected to a first connecting pipe 302, and the other end is connected to a second connecting pipe 304. The end of the first connecting pipe 302 is connected to a water tank 303 containing a solvent, and the end of the second connecting pipe 304 is connected to a buffer tank 307. Support legs 306 are fixedly installed at the four corners of the bottom of the buffer tank 307. Multiple inclined baffles 310 are fixedly connected to the left and right sides of the inner wall of the buffer tank 307. The second connecting pipe 304 is connected to the side wall of the buffer tank 307 and is located below the bottom baffle 310. A drawer-type liquid collection tank 3 is slidably connected to the bottom of the buffer tank 307. 05. The liquid collection tank 305 is located directly below the bottom baffle 310 and below the second connecting pipe 304. The top of the buffer box 307 is connected to the exhaust pipe 308. The end of the exhaust pipe 308 away from the buffer box 307 extends upward and passes through the front side wall of the top cover 5 into the spraying cavity. The end of the exhaust pipe 308 inside the top cover 5 is connected to the screen 309. The screen 309 covers the air inlet section of the exhaust pipe 308. Through the above structure, the air containing paint mist first passes through the screen 309 to filter large particles under the negative pressure of the exhaust fan 301, and then enters the buffer box 307 and flows tortuously between the baffles 310. The paint droplets are impacted by inertia and adhere to the baffles 310 and slide down to the liquid collection tank 305. Finally, the gas is discharged into the water tank 303 and further purified by the solvent.

[0038] Working principle: Before spraying building materials, the height of the spraying component 6 is adjusted according to the height of the building materials. The hydraulic push rod 202 is activated. The output end of the hydraulic push rod 202 drives the second connecting piece 2014 connected to it to rise and fall synchronously. The second connecting piece 2014 drives the second telescopic tube 2012 to rise and fall along the axis of the first telescopic tube 2011, and drives the top plate 204 to slide up and down along the inner groove 205 of the bottom plate 203. When the spraying component 6 is adjusted to a suitable spraying height, the hydraulic push rod 202 is closed to keep the spraying component 6 constant. At this time, the lifting and adjusting mechanism 2 forms an independent spraying cavity with the curtain 7 through the bottom plate 203 and the top plate 204 to block the spread of paint, and indirectly adjusts the height of the spraying component 6 through the telescopic component 201 to adapt to the spraying distance requirements of different spraying processes, adapt to building materials of different heights and reduce paint waste.

[0039] During the spraying process, the exhaust fan 301 is started, and the exhaust fan 301 generates suction to draw the paint that diffuses outward during spraying into the exhaust pipe 308. The screen 309 at the end of the exhaust pipe 308 filters the gas mixed with larger droplets. The exhaust gas mixed with paint comes into contact with the baffle 310 after passing through the buffer box 307. The mixed paint adheres to the baffle 310 and slides down the inclined surface into the collection tank 305. The collection tank 305 collects the sliding paint for subsequent extraction and cleaning. Afterward, the exhaust gas is discharged into the water tank 303 through the first connecting pipe 302 for secondary filtration. The solvent in the water tank 303 further dissolves the paint, preventing the paint from being discharged and causing air pollution. The waste paint absorption mechanism 3 can timely absorb the exhaust gas, preventing suspended paint mist particles from drifting and re-adhering to the surface of the sprayed material, causing particle defects in the coating, affecting the appearance and adhesion effect, and at the same time reducing paint discharge.

Claims

1. A surface spraying device for building materials, comprising: Frame (1) and conveyor belt device (4); Its features are, The frame (1) is provided with lifting adjustment mechanism (2) on the top left and right sides. The top of the lifting adjustment mechanism (2) is fixedly connected to the top cover (5). The bottom wall of the top cover (5) is equipped with a spraying component (6). The lifting adjustment mechanism (2) includes a telescopic component (201) and a hydraulic push rod (202). The telescopic component (201) includes a first telescopic tube (2011) and a second telescopic tube (2012) slidably connected inside the first telescopic tube (2011). The first telescopic tube (2011) is fixed to the top of the left and right sides of the frame (1). A first connector (2013) is fixedly connected to the top of the front side of the first telescopic tube (2011). A base plate (203) is fixedly connected between adjacent first connectors (2013). An inner groove (205) for limiting is opened inside the base plate (203). A second connector (2014) is fixedly connected to the front side of the outer wall of the second telescopic tube (2012). A top plate (204) is fixedly connected between adjacent second connectors (2014). The top plate (204) is slidably fitted inside the inner groove (205). The hydraulic push rod (202) is fixedly connected to the top left and right sides of the frame (1).

2. The building material surface spraying device according to claim 1, characterized in that, The top cover (5) is fixedly connected to the front and rear sides with curtains (7). The curtains (7) extend vertically downward and the bottom end is lower than the nozzle position of the spraying assembly (6). The curtains (7) cooperate with the bottom plate (203) and the top plate (204) to form a closed cavity.

3. The building material surface spraying device according to claim 1, characterized in that, Waste paint absorption mechanism (3) is installed on the bottom front side of the frame (1). The waste paint absorption mechanism (3) includes a fan (301). The fan (301) is fixedly installed on the bottom front side of the frame (1). The input end and output end of the fan (301) are respectively connected to pipelines.

4. The building material surface spraying device according to claim 3, characterized in that, One end of the exhaust fan (301) is connected to a first connecting pipe (302), and the other end of the exhaust fan (301) is connected to a second connecting pipe (304). The end of the first connecting pipe (302) is connected to a water tank (303), and the water tank (303) contains a solvent.

5. A building material surface spraying device according to claim 4, characterized in that, The second connecting pipe (304) is connected to a buffer box (307) at its end. Support legs (306) are fixedly installed at the four corners of the bottom of the buffer box (307). The bottom of the support legs (306) is supported on the ground or on the bottom extension structure of the frame (1).

6. A building material surface spraying device according to claim 5, characterized in that, The buffer box (307) has baffles (310) fixedly connected to the left and right sides of its inner wall in an alternating manner. The baffles (310) are inclined. The second connecting pipe (304) is connected to the side wall of the buffer box (307) and is located below the bottom baffle (310).

7. A building material surface spraying device according to claim 6, characterized in that, The bottom of the buffer tank (307) is slidably connected to a liquid collection tank (305), which is located directly below the bottommost baffle (310), and the second connecting pipe (304) is located above the liquid collection tank (305).

8. A building material surface spraying device according to claim 5, characterized in that, The top of the buffer box (307) is connected to an air extraction pipe (308). The end of the air extraction pipe (308) away from the buffer box (307) extends upward and penetrates the front side wall of the top cover (5). The inlet of the air extraction pipe (308) faces the inside of the top cover (5).

9. A building material surface spraying device according to claim 8, characterized in that, The end of the exhaust pipe (308) located inside the top cover (5) is connected to a screen (309), which covers the air inlet section of the exhaust pipe (308).

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