A kind of building template surface spraying device

Abstract

The present invention belongs to the field of building template spraying, and specifically is a building template surface spraying device, comprising a spraying box, two flip doors that can be opened and closed are installed at both ends of the spraying box, a guide rail is arranged on the inner side of the spraying box near the top, the two ends of the guide rail pass through the two ends of the spraying box, a plurality of drivers that can move on the guide rail are installed below the guide rail, and two support arms for grabbing building template blocks are arranged at the bottom of the driver. Through this arrangement, only two nozzles need to be arranged, one from obliquely above and the other from obliquely below to continuously spray paint on the surface of the building template block, and the direction of the nozzle changes after the building template block passes over the nozzle, so that the nozzle can continue to spray the other side of the building template block. In this way, only two nozzles need to be arranged to complete the spraying work, which reduces the maintenance time of the nozzle, and the nozzle has a self-cleaning function, which can greatly reduce the problem of nozzle blockage and ensure the spraying quality of the building template block.

Description

Technical Field

[0001] The invention belongs to the field of building template spraying, in particular to a building template surface spraying device. Background Art

[0002] Building formwork is a temporary supporting structure, which is made according to the design requirements to shape the concrete structure and components into the specified position and geometric dimensions, maintain their correct position, and bear the deadweight of the building formwork and the external loads acting on it. Spraying paint on the surface of the building formwork has various beneficial effects, the most important of which is that it can effectively prevent the adhesion of concrete to the formwork, avoid damage to the concrete surface when removing the formwork, and ensure the integrity and precision of the concrete components.

[0003] A patent application with publication number CN114749308A discloses a device for spraying the surface of a building formwork, comprising: a support plate, a support plate is provided on the top of a base; a support frame, support frames are provided on both the front and rear sides of the support plate; a spray can, three spray cans are evenly spaced on the upper and lower sides of two support frames, and there are twelve spray cans in total; a second connecting rod drives a friction plate to move upward, and the friction plate pushes the formwork to move upward, thereby assisting the formwork to move upward, making it easier to apply paint to the side of the formwork.

[0004] Traditional spraying equipment requires the use of numerous nozzles to spray the building formwork at multiple angles to ensure comprehensive spraying. However, the nozzles are prone to clogging during long-term use. The reason may be uneven paint particles or the nozzles are not cleaned after spraying, causing the paint to oxidize and dry and block the nozzles. The spraying process is often fully automatic and difficult to detect in time, resulting in uneven spraying of subsequent building formwork and substandard quality.

[0005] To this end, the present invention provides a construction template surface spraying device. Summary of the invention

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the present invention to solve the technical problem is as follows: a construction template surface spraying device described in the present invention comprises a spraying box, two flip doors that can be opened and closed are installed at both ends of the spraying box, a guide rail is arranged on the inner side of the spraying box near the top, the two ends of the guide rail pass through the two ends of the spraying box, a plurality of drivers that can move on the guide rail are installed below the guide rail, two support arms for grabbing construction template blocks are arranged at the bottom of the driver, two nozzles with self-cleaning function are arranged on one side of the spraying box, the nozzles are used to spray the construction template blocks, and a driving motor 2 that can change the direction of the nozzle according to the moving position of the construction template block is installed on one side of the nozzle;

[0008] Through the setting of the spray box, two support arms are used to grab both sides of the building template from both sides, and the driver moves on the guide rail. The driver slides and is connected to the guide rail. A plurality of electric wheels in contact with the guide rail are installed in the driver. The rotation of the electric wheel drives the driver and the building template block to move. The flip door is opened to allow the building template block to enter the spray box. After that, the nozzle can spray paint toward the building template block. The second driving motor can change the angle of the nozzle as the building template block moves to ensure that the paint can cover both sides of the building template block. After finishing a building template block, the nozzle will be adjusted back to its original position under the drive of the second driving motor and wait for the next During a spraying operation, after a period of spraying is finished, the nozzle will clean its own interior to reduce the paint residue inside the nozzle, thereby reducing the problem of nozzle clogging. Through this setting, only two nozzles need to be set up, one from obliquely above and the other from obliquely below to continuously spray paint onto the surface of the building template block, and change its direction after the building template block passes over the nozzle, so that the nozzle can continue to spray the other side of the building template block. In this way, only two nozzles need to be set up to complete the spraying work, reducing the maintenance time of the nozzle, and the nozzle has a self-cleaning function, which can greatly reduce the problem of nozzle clogging and ensure the spraying quality of the building template block.

[0009] Preferably, a support frame is fixedly connected to the bottom of the driver, and two support arms that can be moved horizontally are connected to the bottom of the support frame. The bottom of the support arm is set in a bent shape. The building formwork is generally a wooden structure, and there are many types of length and width. Paint needs to be sprayed on both sides. It is difficult for the traditional grasping structure to ensure that it adapts to the shape of the building formwork during the grasping process, and it is difficult to ensure that the spraying of the paint is not blocked. Through the setting of the bent support arms, the two support arms that can be moved horizontally clamp the middle building formwork block, and at the same time, the bent area at the bottom can lift the bottom of the building formwork block, so that the contact part with the building formwork block is concentrated on the thickness surface, which will not affect the surface spraying of the building formwork block, and the distance between the two support arms can be adjusted by translating the support arms, so as to clamp building formwork blocks of various shapes.

[0010] Preferably, a sliding rod is provided under the support arm, and both ends of the sliding rod are respectively slidably engaged with the bottom of the two support arms, and a movable seat is fixedly connected to the top of the support arm, and two rotatable screws are provided between the tops of the two support arms, and the two screws are respectively threadedly connected to the two movable seats. The sliding rod is provided to ensure that the bottom of the support arm remains vertical during the sliding process, and the screw is provided so that when the screw rotates, the bottom of the support arm is restricted by the sliding rod and cannot rotate, so that the movable seat and the support arm can move horizontally to clamp the building template block.

[0011] Preferably, a power box is fixedly connected to the middle part of the bottom end of the support frame, a servo motor is fixedly connected to the inner side of the power box, a large gear is fixedly connected to the output end of the servo motor, two screw rods are arranged in parallel, a driven gear is fixedly connected to the outer side of the screw rod, the two driven gears are meshed with the large gear, one end of the screw rod is fixedly connected to a light rod, the light rod passes through another moving seat and is slidably connected to the moving seat, the large gear is driven to rotate by the servo motor, thereby driving the meshing driven gear and the two screw rods to rotate synchronously in the same direction, when the two screw rods rotate synchronously in the same direction, the two moving seats will be controlled to approach or move away from each other, and at the same time, the two light rods are also inserted into the moving seat, further increasing the movement stability of the support arm, through this arrangement, the closing and opening of the two support arms can be controlled by using one power source.

[0012] Preferably, a vertically arranged infrared transmitter is installed on the side of the support arm away from the building template block, and multiple groups of infrared receivers are installed on the inner side of the spray box, and the infrared receiver is located on the side away from the nozzle. In order to allow the swing of the nozzle to adapt to the movement of the building template block, the infrared transmitter on the outside of the support arm always radiates vertical long strips of infrared light outward, and the infrared receiver in the spray box can receive the infrared light and control the second drive motor and the nozzle; when the support arm enters the spray box, the infrared light triggers the first infrared receiver, and the second drive motor adjusts the direction of the nozzle to make the nozzle face the building template block, and the nozzle starts to spray paint at the same time. When the support arm passes the middle position of the spray box, the second infrared receiver is triggered, and the second drive motor will control the nozzle to change its direction and spray the other side of the building template block. When the support arm approaches the flip door of the exit, the third infrared trigger is triggered, and the nozzle will stop spraying. Through this arrangement, a small number of nozzles can track the moving position of the building template block, and the function of all-round spraying is realized.

[0013] Preferably, the second drive motor is arranged on a side of the nozzle away from the guide rail, the second drive motor is arranged vertically, the output end of the second drive motor is fixedly connected to a bracket, both ends of the bracket are fixedly connected to the first drive motor, the output ends of the two first drive motors are connected to the nozzle, the second drive motor controls the horizontal angle of the nozzle and the bracket, and the first drive motor controls the vertical angle of the nozzle. Because different building template blocks have different widths, the spraying angle must also be appropriately modified. Through this arrangement, it can be ensured that the surfaces of building template blocks of various widths can be sprayed.

[0014] Preferably, a negative pressure box is fixedly connected to one end of the nozzle away from the guide rail, and the negative pressure box is communicated with the outside. An atomizing nozzle is fixedly connected to one end of the negative pressure box away from the nozzle. A hose connected to the paint is fixedly connected to one end of the atomizing nozzle located outside the negative pressure box. The paint is connected through the hose, and the atomizing nozzle cannot spray the paint into the nozzle. Since the atomizing nozzle sprays quickly at one end of the nozzle, a low-pressure area is formed. According to Bernoulli's principle, the low-pressure area will pull the surrounding airflow, so that the air in the negative pressure box is drawn toward the direction of the nozzle, so that negative pressure is generated inside the negative pressure box, and air is continuously drawn outward, so that what is sprayed at the outlet end of the nozzle is a mixture of paint and air, so that the paint is fully diffused in the airflow and fully contacts with the building formwork block, thereby improving the spraying effect and quality.

[0015] Preferably, a water storage tank is fixedly connected to the top of the spray box, and a transmission pipe is fixedly connected to the output end of the water storage tank, and two vertically arranged water injection pipes are fixedly connected to the end of the transmission pipe, and the two water injection pipes are located above the two nozzles. A drainage one-way valve is installed on the outer side of the negative pressure box. After spraying is completed, the negative pressure box and the nozzle are driven by a driving motor to rotate to a vertical state, so that the output end of the nozzle faces upward, and cleaning liquid is injected into the water injection pipe through the water storage tank, and the cleaning liquid is allowed to enter the nozzle. Through this arrangement, since the internal space of the nozzle is larger and more cleaning liquid enters, the inner wall of the nozzle and the part of the atomizing nozzle can be effectively cleaned. After that, the cleaning liquid is discharged outwardly through the drainage one-way valve, so that the nozzle can continue to work. When there is no subsequent building template block, the drainage one-way valve needs to be closed to allow the cleaning liquid to remain in the nozzle, thereby reducing the outside air from oxidizing the paint and causing the paint to dry up and cause pipeline blockage.

[0016] Preferably, the two nozzles have different heights and are not in the same plane. Two absorption filter tubes are fixedly connected to the outside of the negative pressure box. The positions of the two nozzles are set so that when the two nozzles are upright, they will not block or interfere with each other, so that the water injection pipe can smoothly inject cleaning liquid into the nozzle. The setting of the absorption filter tube can filter some particles when the combustion pipe negative pressure box absorbs external air, thereby reducing the impact of external particles on the inside of the nozzle. At the same time, part of the cleaning liquid will also be discharged through the absorption filter tube for cleaning the absorption filter tube.

[0017] Preferably, a recovery tank 1 and a recovery tank 2 are respectively provided on both sides of the bottom of the spray box, and the bottom edges of the recovery tank 1 and the recovery tank 2 are connected to a recovery pipe. A water curtain nozzle is provided above the recovery tank 1, and the water curtain nozzle is connected to a water storage tank. In order to reduce the waste of paint, a water curtain nozzle is used to create a water curtain on the side away from the nozzle, so that excess paint during the spraying process contacts the water curtain and is collected in the recovery tank 1, and finally recovered by the recovery pipe. The recovery tank 2 can collect the cleaning liquid overflowing from the nozzle.

[0018] The beneficial effects of the present invention are as follows:

[0019] 1. A construction template surface spraying device described in the present invention, through the setting of a spray box, uses two support arms to grab both sides of the construction template from both sides, and moves on the guide rail through a driver, the driver is slidably engaged on the guide rail, and a plurality of electric wheels in contact with the guide rail are installed in the driver, and the rotation of the electric wheels drives the driver and the construction template block to move, and the flip door is opened to allow the construction template block to enter the spray box, and then the nozzle can spray paint toward the construction template block, and the driving motor 2 can change the angle of the nozzle following the movement of the construction template block to ensure that the paint can cover both sides of the construction template block, and after finishing one construction template block, the nozzle will be adjusted under the drive of the driving motor 2. Return to the original position and wait for the next spraying work. After a period of spraying work, the nozzle will clean its own interior to reduce the paint residue inside the nozzle, thereby reducing the problem of nozzle clogging. Through this setting, only two nozzles need to be set up, one from obliquely above and the other from obliquely below to continuously spray paint onto the surface of the building template block, and change its direction after the building template block passes over the nozzle, so that the nozzle can continue to spray the other side of the building template block. In this way, only two nozzles need to be set up to complete the spraying work, reducing the maintenance time of the nozzle, and the nozzle has a self-cleaning function, which can greatly reduce the problem of nozzle clogging and ensure the spraying quality of the building template block.

[0020] 2. The building template surface spraying device described in the present invention, through the setting of the bent support arms, the two support arms that can be translated clamp the middle building template block, and at the same time the bent area at the bottom can lift the bottom of the building template block, so that the contact part with the building template block is concentrated on the thickness surface, which will not affect the surface spraying work of the building template block, and the distance between the two support arms can be adjusted by translating the support arms, so as to clamp building template blocks of various shapes. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be further described below in conjunction with the accompanying drawings.

[0022] Figure 1 is a stereogram of the present invention;

[0023] Figure 2 is a cross-sectional view of the spray box of the present invention;

[0024] Figure 3 is a three-dimensional diagram of the support arm of the present invention;

[0025] Figure 4 is a stereogram of the screw and the gear of the present invention;

[0026] Figure 5 is a stereoscopic view of the nozzle of the present invention;

[0027] Figure 6It is a three-dimensional diagram of the negative pressure box of the present invention;

[0028] Figure 7 is a cross-sectional view of the nozzle of the present invention;

[0029] In the figure: 1. spray box; 2. flip door; 3. guide rail; 4. building template block; 5. water storage tank; 6. transmission pipe; 7. recovery tank one; 8. recovery tank two; 9. nozzle; 10. support arm; 11. infrared transmitter; 12. slide bar; 13. driver; 14. support frame; 15. power box; 16. servo motor; 17. large gear; 18. screw; 19. bare rod; 20. moving seat; 21. water injection pipe; 22. negative pressure box; 23. absorption filter tube; 24. bracket; 25. hose; 26. drive motor one; 27. drive motor two; 28. atomizing nozzle; 29. ​​drainage check valve. DETAILED DESCRIPTION

[0030] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0031] like Figures 1 to 3 As shown, a construction template surface spraying device according to an embodiment of the present invention comprises a spray box 1, two flip doors 2 that can be opened and closed are installed at both ends of the spray box 1, a guide rail 3 is arranged on the inner side of the spray box 1 near the top, and both ends of the guide rail 3 pass through the two ends of the spray box 1, and a plurality of drivers 13 that can move on the guide rail 3 are installed below the guide rail 3, and two support arms 10 for grabbing the construction template block 4 are arranged at the bottom of the driver 13, and two nozzles 9 with a self-cleaning function are arranged on one side of the spray box 1, and the nozzles 9 are used to spray the construction template block 4, and a driving motor 27 that can change the direction of the nozzle 9 according to the moving position of the construction template block 4 is installed on one side of the nozzle 9;

[0032] After a spraying is completed, the paint on the nozzle surface oxidizes and hardens, causing the nozzle discharge amount and discharge range to change, resulting in the paint sprayed on the surface of the building formwork no longer being sprayed on the surface of the building formwork according to the predetermined amount, resulting in the quality of the subsequent processing of the building formwork not meeting the standards;

[0033] Through the setting of the spray box 1, two support arms 10 are used to grab the two sides of the building template from both sides, and the driver 13 moves on the guide rail 3. The driver 13 is slidably connected to the guide rail 3. A plurality of electric wheels in contact with the guide rail 3 are installed in the driver 13. The rotation of the electric wheel drives the driver 13 and the building template block 4 to move. The flip door 2 is opened to allow the building template block 4 to enter the spray box 1. After that, the nozzle 9 can spray paint toward the building template block 4. The drive motor 27 can change the angle of the nozzle 9 with the movement of the building template block 4 to ensure that the paint can cover both sides of the building template block 4. After finishing a building template block 4, the nozzle 9 will be adjusted back to its original position under the drive of the drive motor 27. The position of the building template block 4 is set, waiting for the next spraying work. After a period of spraying work is finished, the nozzle 9 will clean its own interior to reduce the paint residue inside the nozzle 9, thereby reducing the problem of nozzle 9 clogging. Through this arrangement, only two nozzles 9 need to be set, one from obliquely above and the other from obliquely below to continuously spray paint on the surface of the building template block 4, and change its own direction after the building template block 4 passes over the nozzle 9, so that the nozzle 9 can continue to spray the other side of the building template block 4. In this way, only two nozzles 9 need to be set to complete the spraying work, reducing the maintenance time of the nozzle 9, and the nozzle 9 has a self-cleaning function, which can greatly reduce the problem of nozzle 9 clogging and ensure the spraying quality of the building template block 4.

[0034] like Figures 1 to 3 As shown, a support frame 14 is fixedly connected to the bottom of the driver 13, and two translationally movable support arms 10 are connected to the bottom of the support frame 14, and the bottom of the support arm 10 is bent;

[0035] During operation, the building formwork is generally a wooden structure, and there are many types of length and width, and both sides need to be sprayed with paint. The traditional grabbing structure is difficult to ensure that it adapts to the shape of the building formwork during the grabbing process, and it is difficult to ensure that the paint spraying work is not blocked. Through the setting of the bent support arm 10, the two translatable support arms 10 clamp the middle building formwork block 4, and at the same time, the bent area at the bottom can lift the bottom of the building formwork block 4, so that the contact part with the building formwork block 4 is concentrated on the thickness surface, which will not affect the surface spraying work of the building formwork block 4, and the distance between the two support arms 10 can be adjusted by translating the support arm 10, so as to clamp building formwork blocks 4 of various shapes.

[0036] like Figures 2 to 7 As shown, a slide bar 12 is provided below the support arm 10, and the two ends of the slide bar 12 are respectively slidably engaged with the bottoms of the two support arms 10, and a moving seat 20 is fixedly connected to the top of the support arm 10. Two rotatable screw rods 18 are provided between the tops of the two support arms 10, and the two screw rods 18 are respectively threadedly connected with the two moving seats 20;

[0037] During operation, the slide bar 12 is set to ensure that the bottom of the support arm 10 remains vertical during the sliding process. The screw rod 18 is set so that when the screw rod 18 rotates, the bottom of the support arm 10 is restricted by the slide bar 12 and cannot rotate, so that the movable seat 20 and the support arm 10 can move horizontally to clamp the building template block 4.

[0038] like Figures 2 to 7 As shown, a power box 15 is fixedly connected to the middle of the bottom end of the support frame 14, a servo motor 16 is fixedly connected to the inner side of the power box 15, a large gear 17 is fixedly connected to the output end of the servo motor 16, two screw rods 18 are arranged in parallel, a driven gear is fixedly connected to the outer side of the screw rod 18, and the two driven gears are meshed with the large gear 17, and a polished rod 19 is fixedly connected to one end of the screw rod 18, and the polished rod 19 passes through another moving seat 20 and is slidably connected to the moving seat 20;

[0039] During operation, the large gear 17 is driven to rotate by the servo motor 16, thereby driving the meshing driven gear and the two screws 18 to rotate synchronously in the same direction. When the two screws 18 rotate synchronously in the same direction, the two moving seats 20 will be controlled to approach or move away from each other. At the same time, the two light rods 19 are also inserted into the moving seats 20, further increasing the movement stability of the support arm 10. Through this arrangement, the closing and opening of the two support arms 10 can be controlled using one power source.

[0040] like Figures 2 to 7 As shown, a vertically arranged infrared transmitter 11 is installed on the side of the support arm 10 away from the building template block 4, and a plurality of groups of infrared receivers are installed on the inner side of the spray box 1, and the infrared receivers are located on the side away from the nozzle 9;

[0041] During operation, in order to allow the swing of the nozzle 9 to adapt to the movement of the building template block 4, the infrared transmitter 11 on the outside of the support arm 10 continuously radiates vertical long strips of infrared light outward, and the infrared receiver in the spray box 1 can receive the infrared light and control the drive motor 2 27 and the nozzle 9; when the support arm 10 enters the spray box 1, the infrared light triggers the first infrared receiver, and the drive motor 27 adjusts the direction of the nozzle 9 so that the nozzle 9 faces the building template block 4, and the nozzle 9 starts to spray paint at the same time. When the support arm 10 passes the middle position of the spray box 1, the second infrared receiver is triggered, and the drive motor 2 27 will control the nozzle 9 to change its direction and spray the other side of the building template block 4. When the support arm 10 approaches the flip door 2 at the exit, the third infrared trigger is triggered, and the nozzle 9 will stop spraying. Through this setting, a small number of nozzles 9 can track the moving position of the building template block 4, thereby realizing the function of all-round spraying.

[0042] like Figures 2 to 7As shown, the second drive motor 27 is arranged on the side of the nozzle 9 away from the guide rail 3, and the second drive motor 27 is arranged vertically. The output end of the second drive motor 27 is fixedly connected to the bracket 24, and the two ends of the bracket 24 are fixedly connected to the first drive motor 26, and the output ends of the two first drive motors 26 are connected to the nozzle 9;

[0043] During operation, the drive motor 27 controls the horizontal angle of the nozzle 9 and the bracket 24, and the drive motor 1 26 controls the vertical angle of the nozzle 9. Because different building template blocks 4 have different widths, the spraying angle must also be appropriately modified. Through this setting, it can be ensured that the surfaces of building template blocks 4 of various widths can be sprayed.

[0044] like Figures 2 to 7 As shown, the end of the nozzle 9 away from the guide rail 3 is fixedly connected to a negative pressure box 22, and the negative pressure box 22 is connected to the outside. The end of the negative pressure box 22 away from the nozzle 9 is fixedly connected to an atomizing nozzle 28, and the end of the atomizing nozzle 28 located outside the negative pressure box 22 is fixedly connected to a hose 25 connected to the paint;

[0045] During operation, the paint is connected through the hose 25, and the atomizing nozzle 28 cannot spray the paint into the nozzle 9. Since the atomizing nozzle 28 sprays quickly at one end of the nozzle 9, a low-pressure area is formed. According to the Bernoulli principle, the low-pressure area will pull the surrounding airflow, so that the air in the negative pressure box 22 is drawn toward the nozzle 9, so that negative pressure is generated inside the negative pressure box 22, and air is continuously drawn outward, so that what is sprayed at the outlet end of the nozzle 9 is a mixture of paint and air, so that the paint is fully diffused in the airflow and fully contacts with the building template block 4, thereby improving the spraying effect and quality.

[0046] like Figures 2 to 7 As shown, a water storage tank 5 is fixedly connected to the top of the spray box 1, a transmission pipe 6 is fixedly connected to the output end of the water storage tank 5, and two vertically arranged water injection pipes 21 are fixedly connected to the end of the transmission pipe 6. The two water injection pipes 21 are located above the two spray pipes 9, and a drainage check valve 29 is installed on the outer side of the negative pressure box 22;

[0047] During operation, after spraying is completed, the negative pressure box 22 and the nozzle 9 are driven by the driving motor 26 to rotate to a vertical state, so that the output end of the nozzle 9 faces upward, and the cleaning liquid is injected into the water injection pipe 21 through the water storage tank 5, so that the cleaning liquid enters the nozzle 9. Through this arrangement, since the internal space of the nozzle 9 is large, more cleaning liquid enters, and the inner wall of the nozzle 9 and the part of the atomizing nozzle 28 can be effectively cleaned. After that, the cleaning liquid is discharged outward through the drainage check valve 29, so that the nozzle 9 can continue to work. When there is no subsequent building template block 4 that needs to work, the drainage check valve 29 is closed to allow the cleaning liquid to remain in the nozzle 9, thereby reducing the oxidation of the paint by the outside air, causing the paint to dry up and cause pipe blockage.

[0048] like Figures 2 to 7 As shown, the two nozzles 9 have different heights and are not located in the same plane. Two absorption filter tubes 23 are fixedly connected to the outer side of the negative pressure box 22.

[0049] During operation, the positions of the two nozzles 9 are set so that when the two nozzles 9 are upright, they will not block or interfere with each other, so that the water injection pipe 21 can smoothly inject cleaning liquid into the nozzle 9. The absorption filter tube 23 is set so that the combustion pipe negative pressure box 22 can filter some particles when absorbing external air, thereby reducing the impact of external particles on the inside of the nozzle 9. At the same time, part of the cleaning liquid will also be discharged through the absorption filter tube 23 to clean the absorption filter tube 23.

[0050] like Figures 2 to 7 As shown, a recovery tank 1 7 and a recovery tank 2 8 are respectively provided on both sides of the bottom of the spray box 1, and the bottom edges of the recovery tank 1 7 and the recovery tank 2 8 are connected with a recovery pipe, and a water curtain nozzle is provided above the recovery tank 1 7, and the water curtain nozzle is connected to the water storage tank 5;

[0051] During operation, in order to reduce the waste of paint, a water curtain nozzle is used to create a water curtain on the side away from the nozzle 9, so that the excess paint in the spraying process contacts the water curtain and is collected in the recovery tank 1 7, and finally recovered by the recovery pipe. The recovery tank 2 8 can collect the cleaning liquid overflowing from the nozzle 9.

[0052] During operation, through the setting of the spray box 1, two support arms 10 are used to grab the two sides of the building template from both sides, and the driver 13 is moved on the guide rail 3. The driver 13 is slidably connected to the guide rail 3. A plurality of electric wheels in contact with the guide rail 3 are installed in the driver 13. The rotation of the electric wheels drives the driver 13 and the building template block 4 to move. The flip door 2 is opened to allow the building template block 4 to enter the spray box 1. After that, the nozzle 9 can spray paint toward the building template block 4. The drive motor 27 can change the angle of the nozzle 9 with the movement of the building template block 4 to ensure that the paint can cover both sides of the building template block 4. After finishing a building template block 4, the nozzle 9 will be adjusted under the drive of the drive motor 27. Return to the original position and wait for the next spraying work. After a period of spraying work is finished, the nozzle 9 will clean its own interior to reduce the paint residue inside the nozzle 9, thereby reducing the problem of nozzle 9 clogging. Through this setting, only two nozzles 9 need to be set, one from the upper side and the other from the lower side to continuously spray paint on the surface of the building template block 4, and change its direction after the building template block 4 passes over the nozzle 9, so that the nozzle 9 can continue to spray the other side of the building template block 4. In this way, only two nozzles 9 need to be set to complete the spraying work, reducing the maintenance time of the nozzle 9, and the nozzle 9 has a self-cleaning function, which can greatly reduce the problem of nozzle 9 clogging and ensure the spraying quality of the building template block 4;

[0053] The building template is generally a wooden structure, and there are many types of length and width. Both sides need to be sprayed with paint. The traditional grabbing structure is difficult to ensure that it adapts to the shape of the building template during the grabbing process, and it is difficult to ensure that the paint spraying work is not blocked. Through the setting of the bent support arm 10, the two support arms 10 that can be moved horizontally clamp the middle building template block 4, and at the same time, the bent area at the bottom can lift the bottom of the building template block 4, so that the contact part with the building template block 4 is concentrated on the thickness surface, which will not affect the surface spraying work of the building template block 4, and the distance between the two support arms 10 can be adjusted by translating the support arm 10, so as to clamp building template blocks 4 of various shapes;

[0054] The slide bar 12 is provided to ensure that the bottom of the support arm 10 remains vertical during the sliding process. The screw rod 18 is provided so that when the screw rod 18 rotates, the bottom of the support arm 10 is restricted by the slide bar 12 and cannot rotate, so that the movable seat 20 and the support arm 10 can move horizontally to clamp the building template block 4;

[0055] The servo motor 16 drives the large gear 17 to rotate, thereby driving the meshing driven gear and the two screws 18 to rotate synchronously in the same direction. When the two screws 18 rotate synchronously in the same direction, the two moving seats 20 are controlled to move closer to or farther away from each other. At the same time, the two light rods 19 are also inserted into the moving seats 20, further increasing the moving stability of the support arms 10. Through this arrangement, the closing and opening of the two support arms 10 can be controlled by using one power source;

[0056] In order to allow the swing of the nozzle 9 to adapt to the movement of the building template block 4, the infrared transmitter 11 on the outside of the support arm 10 always radiates vertical long strips of infrared light outward, and the infrared receiver in the spray box 1 can receive the infrared light and control the drive motor 27 and the nozzle 9; when the support arm 10 enters the spray box 1, the infrared light triggers the first infrared receiver, and the drive motor 27 adjusts the direction of the nozzle 9 so that the nozzle 9 faces the building template block 4, and the nozzle 9 starts to spray paint at the same time. When the support arm 10 passes the middle position of the spray box 1, the second infrared receiver is triggered, and the drive motor 27 controls the nozzle 9 to change its direction and spray the other side of the building template block 4. When the support arm 10 approaches the flip door 2 of the exit, the third infrared trigger is triggered, and the nozzle 9 stops spraying. Through this setting, a small number of nozzles 9 can track the moving position of the building template block 4, and the function of all-round spraying is realized;

[0057] The second drive motor 27 controls the horizontal angle of the nozzle 9 and the bracket 24, and the first drive motor 26 controls the vertical angle of the nozzle 9. Because the widths of different building template blocks 4 are different, the spraying angle should also be appropriately modified. Through this setting, it can be ensured that the surfaces of building template blocks 4 of various widths can be sprayed;

[0058] The paint is connected through the hose 25, and the atomizing nozzle 28 cannot spray the paint into the nozzle 9. Since the atomizing nozzle 28 sprays quickly at one end of the nozzle 9, a low-pressure area is formed. According to the Bernoulli principle, the low-pressure area will pull the surrounding airflow, so that the air in the negative pressure box 22 is drawn toward the nozzle 9, so that negative pressure is generated inside the negative pressure box 22, and air is continuously drawn outward, so that what is sprayed at the outlet end of the nozzle 9 is a mixture of paint and air, so that the paint is fully diffused in the airflow and fully contacts with the building template block 4, thereby improving the spraying effect and quality;

[0059] When the spraying is finished, the negative pressure box 22 and the nozzle 9 are driven by the driving motor 26 to rotate to a vertical state, so that the output end of the nozzle 9 is facing upward, and the cleaning liquid is injected into the water injection pipe 21 through the water storage tank 5, so that the cleaning liquid enters the nozzle 9. Through this arrangement, since the internal space of the nozzle 9 is large, more cleaning liquid enters, and the inner wall of the nozzle 9 and the part of the atomizing nozzle 28 can be effectively cleaned. After that, the cleaning liquid is discharged outward through the drainage check valve 29, so that the nozzle 9 can continue to work. When there is no building template block 4 to work in the future, the drainage check valve 29 is closed to keep the cleaning liquid in the nozzle 9, so as to reduce the oxidation of the paint by the external air, causing the paint to dry up and cause the pipeline to be blocked;

[0060] The positions of the two nozzles 9 are set so that when the two nozzles 9 are erected, they will not block or interfere with each other, so that the water injection pipe 21 can smoothly inject cleaning liquid into the nozzle 9. The arrangement of the absorption filter pipe 23 allows the combustion pipe negative pressure box 22 to filter some particles when absorbing external air, thereby reducing the impact of external particles on the inside of the nozzle 9. At the same time, part of the cleaning liquid will also be discharged through the absorption filter pipe 23 to clean the absorption filter pipe 23;

[0061] In order to reduce the waste of paint, a water curtain nozzle is used to create a water curtain on the side away from the nozzle 9, so that the excess paint in the spraying process contacts the water curtain and is collected in the recovery tank 1 7 and finally recovered by the recovery pipe. The recovery tank 2 8 can collect the cleaning liquid overflowing from the nozzle 9.

[0062] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A construction template surface spraying device, characterized in that: The invention comprises a spray box (1), wherein two flip doors (2) are installed at both ends of the spray box (1) and can be opened and closed; a guide rail (3) is arranged on the inner side of the spray box (1) near the top, and the two ends of the guide rail (3) pass through the two ends of the spray box (1); a plurality of drivers (13) movable on the guide rail (3) are arranged below the guide rail (3); two support arms (10) for grabbing building template blocks (4) are arranged at the bottom of the driver (13); two nozzles (9) with a self-cleaning function are arranged on one side of the spray box (1); the nozzles (9) are used for spraying building template blocks (4); and a driving motor (27) capable of changing the direction of the nozzle (9) according to the moving position of the building template block (4) is installed on one side of the nozzle (9); The second drive motor (27) is arranged on a side of the nozzle (9) away from the guide rail (3), and the second drive motor (27) is arranged vertically. The output end of the second drive motor (27) is fixedly connected to a bracket (24), and both ends of the bracket (24) are fixedly connected to the first drive motor (26), and the output ends of the two first drive motors (26) are connected to the nozzle (9); One end of the nozzle (9) away from the guide rail (3) is fixedly connected to a negative pressure box (22), the negative pressure box (22) is in communication with the outside, one end of the negative pressure box (22) away from the nozzle (9) is fixedly connected to an atomizing nozzle (28), and one end of the atomizing nozzle (28) located outside the negative pressure box (22) is fixedly connected to a hose (25) connected to the paint; A water storage tank (5) is fixedly connected to the top of the spray box (1); a transmission pipe (6) is fixedly connected to the output end of the water storage tank (5); two vertically arranged water injection pipes (21) are fixedly connected to the end of the transmission pipe (6); the two water injection pipes (21) are located above the two spray pipes (9); and a drainage check valve (29) is installed on the outer side of the negative pressure box (22); A support frame (14) is fixedly connected to the bottom of the driver (13); two translationally movable support arms (10) are connected to the bottom of the support frame (14); and the bottom of the support arm (10) is arranged in a bent shape; A sliding rod (12) is provided below the support arm (10), and the two ends of the sliding rod (12) are respectively slidably engaged with the bottoms of the two support arms (10), and a movable seat (20) is fixedly connected to the top of the support arm (10), and two rotatable screw rods (18) are provided between the tops of the two support arms (10), and the two screw rods (18) are respectively threadedly connected to the two movable seats (20); A power box (15) is fixedly connected to the middle of the bottom end of the support frame (14), a servo motor (16) is fixedly connected to the inner side of the power box (15), a large gear (17) is fixedly connected to the output end of the servo motor (16), two screw rods (18) are arranged in parallel, a driven gear is fixedly connected to the outer side of the screw rod (18), and the two driven gears are meshed with the large gear (17), and a light rod (19) is fixedly connected to one end of the screw rod (18), and the light rod (19) passes through another moving seat (20) and is slidably connected to the moving seat (20); A vertically arranged infrared transmitter (11) is installed on the side of the support arm (10) away from the building template block (4), and a plurality of groups of infrared receivers are installed on the inner side of the spray box (1), wherein the infrared receivers are located on the side away from the spray pipe (9).

2. A construction template surface spraying device according to claim 1, characterized in that: The two nozzles (9) are at different heights and are not located in the same plane. Two absorption filter tubes (23) are fixedly connected to the outside of the negative pressure box (22).

3. A construction template surface spraying device according to claim 2, characterized in that: A recovery tank 1 (7) and a recovery tank 2 (8) are respectively provided on both sides of the bottom of the spray box (1); the bottom edges of the recovery tank 1 (7) and the recovery tank 2 (8) are connected to recovery pipes; a water curtain nozzle is provided above the recovery tank 1 (7); and the water curtain nozzle is connected to the water storage tank (5).

Images