A building material spraying mechanism

By introducing a scraping and cleaning structure into the building material spraying mechanism, the problem of uneven building material spraying was solved, achieving uniform spraying and conveyor belt cleaning, thereby improving spraying quality and equipment lifespan.

CN224332496UActive Publication Date: 2026-06-09TIANJIN DONGFANG ZHONGTIAN CONSTR ENG CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
TIANJIN DONGFANG ZHONGTIAN CONSTR ENG CO LTD
Filing Date
2025-07-03
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

Existing building material spraying facilities cannot effectively scrape the paint evenly after spraying, resulting in uneven coating thickness on the building material surface and affecting the spraying quality.

Method used

The design includes a scraping structure, comprising a threaded rod and a scraping plate. The threaded rod drives the scraping plate to scrape the paint on the top of the building material. Combined with a heating plate and a feeding mechanism, this achieves uniform spraying on the surface of the building material. At the same time, a cleaning structure is set up, including a scraper and a cleaning brush, to remove residual paint from the conveyor belt.

Benefits of technology

It achieves uniform spraying on building material surfaces, improves spraying quality, and extends the service life of the conveyor belt.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224332496U_ABST
    Figure CN224332496U_ABST
Patent Text Reader

Abstract

This utility model discloses a building material spraying mechanism, relating to the field of building material spraying technology. It includes a base, a spraying box and a feeding mechanism mounted on the base. The spraying box has an inlet and an outlet on symmetrical sides, and a spraying structure is also provided on the spraying box. A cleaning brush is installed inside the inlet. A partition and a heating plate are fixed inside the spraying box, and a scraping structure is also provided. A gap is left between the bottom of the partition and the feeding mechanism for the building material template to pass through. The heating plate is located inside the spraying box near the outlet. Compared with the prior art, this utility model, through the scraping structure, can scrape the paint sprayed on the top of the building material to achieve uniform spraying, avoiding uneven paint thickness on the surface of the building material, thus improving the spraying quality and facilitating the subsequent use of the building material.
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Description

Technical Field

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

[0002] Building materials refer to materials used for the structure, enclosure, decoration, and functional realization of buildings. They can be divided into structural materials (such as wood, bamboo, stone, cement, concrete, metal, bricks, tiles, glass, engineering plastics, etc.), decorative materials (such as paints, varnishes, tiles, flexible ceramics, sanitary ware, lighting fixtures, etc.), and special-purpose materials (such as waterproof, moisture-proof, corrosion-resistant, sound-insulating, and heat-insulating functional materials). In the current production and processing of structural materials, spray coating is often used to coat the surface of building materials. This not only improves the corrosion resistance of the materials and extends their service life, but also enhances their aesthetics and facilitates their use.

[0003] A search revealed a building material spraying mechanism in patent application number 202322964298.5. This mechanism includes a collection box, an air source connection pipe, and an air source box, which are linked to the fan suction and paint spraying structure of this utility model. This allows for dust cleaning while spraying paint. An additional drying chamber and heating lamps, used in conjunction with the above structures, heat-dry the paint sprayed on the building material surface, resulting in good performance. The mechanism also includes fixed crossbars, springs, and limiting plates. During the conveyor belt transport of building materials, the limiting plates on both sides, under the action of the springs at their respective ends, limit the transported building material boards, facilitating straight transport of the boards on the conveyor belt surface and preventing deviation that could affect the spraying effect. However, after spraying the building materials, this structure cannot evenly spread the sprayed paint on the surface, resulting in uneven paint coverage and inconsistent paint thickness. This leads to poor paint quality and affects the subsequent use of the building materials. Utility Model Content

[0004] To address the shortcomings of the existing technology, this utility model proposes a building material spraying mechanism.

[0005] The technical solution of this utility model is implemented as follows: a building material spraying mechanism includes a base, a spraying box and a feeding mechanism disposed on the base. The spraying box has an inlet and an outlet on its symmetrical sides, and a spraying structure is also provided on the spraying box. A cleaning brush is provided inside the inlet. A partition and a heating plate are fixed inside the spraying box, and a scraping structure is also provided on the spraying box. A gap is left between the bottom of the partition and the feeding mechanism for the building material template to pass through. The heating plate is located inside the spraying box on the side near the outlet.

[0006] The scraping structure includes a threaded rod screwed to the top of the spray box and a storage cavity opened inside the partition. A movable scraping plate is provided in the storage cavity. The bottom end of the threaded rod extends into the storage cavity and is rotatably connected to the top of the scraping plate. A through hole is opened in the partition for the threaded rod to pass through, and the through hole communicates with the storage cavity.

[0007] Preferably, the scraping side of the scraping plate is formed into an arc-shaped scraping section with a rounded transition.

[0008] Preferably, both sides of the scraper are fitted with sealing strips to seal the gap between it and the inner wall of the spray box.

[0009] Preferably, the feeding mechanism includes a cavity formed on the base and a motor fixed on one side of the base. Two feeding rollers are rotatably installed in the cavity, and a conveyor belt is connected between the two feeding rollers. The main shaft of the motor is connected to one end of one of the feeding rollers.

[0010] Preferably, a support roller is rotatably installed inside the cavity, and the support roller is positioned between the two feeding rollers.

[0011] Preferably, the base is further provided with a cleaning structure for cleaning the conveyor belt, and the cleaning structure includes a detachable scraper plate inserted into the cavity. An opening for detaching and installing the scraper plate is provided on one side of the base, and a discharge pipe communicating with the cavity is installed at the bottom of the base. A cover plate for sealing the opening is installed at one end of the scraper plate.

[0012] Preferably, the cleaning structure further includes a fixing plate fixed to the side wall of the base, a pull rod is movably inserted into the fixing plate, and the bottom end of the pull rod is connected to a movable plate. A limit strip is installed at the bottom end of the movable plate, and a spring is connected between the movable plate and the fixing plate. A limit groove for the limit strip to be inserted is provided on the side wall of the cover plate.

[0013] Preferably, the spraying structure includes a paint tank and a pump body installed on the top of the spraying box, and a spray head fixed inside the spraying box near the inlet. One end of the pump body is connected to the paint tank through a pipe, and the other end is connected to the spray head through a feeding pipe. An atomizing nozzle is installed at the bottom of the spray head.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. When in use, this utility model, through the setting of the scraping structure, can scrape the paint sprayed on the top of the building material to make the paint sprayed on the top of the building material even, thereby achieving uniform spraying of the building material, avoiding uneven spraying thickness on the surface of the building material, thus improving the spraying quality of the building material and facilitating its subsequent use.

[0016] Furthermore, the scraper plate can be raised and lowered by the threaded rod to adjust the distance between the scraper plate and the conveyor belt, so that the scraper plate can scrape building materials of different thicknesses evenly, greatly improving its practicality.

[0017] 2. When in use, this utility model can scrape off residual paint on the conveyor belt through the cleaning structure, thereby cleaning the conveyor belt and preventing paint from adhering to it. This is beneficial for the subsequent conveying and spraying of building materials, and can also prevent scale buildup and damage to the conveyor belt, thus helping to extend the service life of the conveyor belt.

[0018] Furthermore, during the installation of the scraper, the cover plate can be fixed and limited by the setting of the fixed plate, movable plate, tie rod, spring, limit strip and limit groove, thereby limiting the scraper and facilitating the stable installation of the scraper. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 ;

[0021] Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 ;

[0022] Figure 3 for Figure 1 A partial sectional view;

[0023] Figure 4 for Figure 3 The front view;

[0024] Figure 5 This is a partial sectional view of the partition.

[0025] Figure 6 Schematic diagram of the scraper plate Figure 1 ;

[0026] Figure 7 Schematic diagram of the scraper plate Figure 2 ;

[0027] Figure 8 for Figure 1 Enlarged view of point A in the image.

[0028] In the diagram: 1. Base; 2. Spraying box; 3. Spraying structure; 31. Paint tank; 32. Pump body; 33. Feeding pipe; 34. Spray head; 4. Cleaning brush; 5. Scraping structure; 51. Threaded rod; 52. Scraping plate; 53. Sealing strip; 6. Feeding mechanism; 61. Motor; 62. Conveyor belt; 63. Feeding roller; 64. Support roller; 7. Discharge pipe; 8. Cleaning structure; 81. Scraper; 82. Cover plate; 83. Limiting groove; 84. Limiting strip; 85. Movable plate; 86. Spring; 87. Fixed plate; 88. Pull rod; 9. Partition plate; 10. Heating plate. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] This utility model provides, for example Figures 1-8 The building material spraying mechanism shown includes a base 1, a spraying box 2 and a feeding mechanism 6 mounted on the base 1. The spraying box 2 has an inlet and an outlet on its symmetrical sides, and a spraying structure 3 is also provided on the spraying box 2. A cleaning brush 4 is provided inside the inlet to clean the surface of the building material and remove the floating dust attached to the surface of the building material to facilitate subsequent spraying. A partition 9 and a heating plate 10 are fixed inside the spraying box 2. The heating plate 10 has an electric heating wire or electric heating tube built in it, and a scraping structure 5 is also provided on the spraying box 2. A gap is left between the bottom of the partition 9 and the feeding mechanism 6 for the building material template to pass through. The heating plate 10 is located inside the spraying box 2 on the side closer to the outlet. The spraying box 2 and the base 1 can be installed and fixed by screws to facilitate disassembly of the spraying box 2 and the base 1 and facilitate the maintenance of the spraying structure 3 and the scraping structure 5 in the future.

[0031] The scraping structure 5 includes a threaded rod 51 screwed to the top of the spray box 2 and a storage cavity opened inside the partition 9. A movable scraping plate 52 is provided in the storage cavity. The bottom end of the threaded rod 51 extends into the storage cavity and is rotatably connected to the top of the scraping plate 52. A through hole is opened in the partition 9 for the threaded rod 51 to pass through, and the through hole communicates with the storage cavity. The scraping side of the scraping plate 52 forms an arc-shaped scraping part with a rounded transition.

[0032] Specifically, the spraying structure 3 includes a paint tank 31 and a pump body 32 installed on the top of the spraying box 2, and a spray head 34 fixed inside the spraying box 2 near the inlet. One end of the pump body 32 is connected to the paint tank 31 through a pipe, and the other end is connected to the spray head 34 through a feeding pipe 33. An atomizing nozzle is installed at the bottom of the spray head 34.

[0033] Specifically, the feeding mechanism 6 includes a cavity opened on the base 1 and a motor 61 fixed on one side of the base 1. Two feeding rollers 63 are rotatably installed in the cavity, and a conveyor belt 62 is connected between the two feeding rollers 63. The main shaft of the motor 61 is connected to one end of one of the feeding rollers 63.

[0034] As described above, during the building material spraying process, the building material can be inserted into the spraying box 2 through the feed port. At this time, the building material is on the conveyor belt 62. Then, the motor 61 and the feeding roller 63 drive the conveyor belt 62 to rotate, so as to transport the building material. At the same time, the pump body 32 draws out the paint in the paint tank 31 and feeds it into the spraying head 34 through the feeding pipe 33. Then, it is evenly sprayed onto the surface of the building material through the atomizing nozzle to realize the spraying process of the building material. Then, when the conveyor belt 62 transports the building material to the bottom of the heating plate 10, the heating plate 10 dries the paint sprayed on the surface of the building material. After drying, the conveyor belt 62 sends the building material out through the discharge port, and then the building material is added back into the spraying box 2 through the feed port. This process is repeated to realize the assembly line operation of building material spraying, which is conducive to the large-scale spraying process of building materials.

[0035] During the building material spraying process, the threaded rod 51 can be rotated, causing the scraper plate 52 to move out of the receiving cavity until the bottom of the scraper plate 52 contacts the top of the building material. The arc-shaped scraper part scrapes the paint sprayed on the top of the building material to achieve uniform spraying of the paint, thus avoiding uneven spraying thickness on the surface of the building material. This is beneficial to improving the spraying quality of the building material and facilitating its subsequent use. During the building material spraying process, the threaded rod 51 can be rotated in the opposite direction, causing the scraper plate 52 to move upward and retract into the receiving cavity. This adjusts the distance between the scraper plate 52 and the conveyor belt 62, enabling the scraper plate 52 to scrape building materials of different thicknesses evenly, greatly improving its practicality.

[0036] Furthermore, in this embodiment, in order to facilitate the control of the distance between the scraper plate 52 and the conveyor belt 62, a transparent observation window (not shown in the figure) can be opened on the side wall of the spray box 2, thereby facilitating the height adjustment of the scraper plate 52.

[0037] Furthermore, to ensure the strength of the conveyor belt 62 and facilitate the stable conveying and spraying of building materials, such as Figure 3 and Figure 4As shown, a support roller 64 is also rotatably installed inside the cavity, and the support roller 64 is located between the two feeding rollers 63.

[0038] Furthermore, to ensure that the scraper 52 effectively and evenly spreads the paint sprayed on the building material surface, such as... Figures 3-5 As shown, both sides of the scraper plate 52 are fitted with sealing strips 53 to seal the gap between it and the inner wall of the spray box 2.

[0039] In another embodiment, such as Figures 1-4 as well as Figure 6 and Figure 7 As shown, the base 1 is also provided with a cleaning structure 8 for cleaning the conveyor belt 62, and the cleaning structure 8 includes a detachable scraper 81 inserted into the cavity. An opening for disassembling and assembling the scraper 81 is provided on one side of the base 1, and a discharge pipe 7 communicating with the cavity is installed at the bottom of the base 1. A cover plate 82 for sealing the opening is installed at one end of the scraper 81.

[0040] During the process of conveying building materials on the conveyor belt 62, the scraper plate 81 can scrape the bottom of the conveyor belt 62 to remove residual paint, allowing the paint to fall and be discharged through the discharge pipe 7. This cleans the conveyor belt 62, preventing paint from adhering to it, which is beneficial for the subsequent conveying and spraying of building materials. It also prevents scaling and damage to the conveyor belt 62, helping to extend its service life.

[0041] Meanwhile, in this embodiment, to ensure the stable installation of the scraper 81, such as Figure 1 , Figure 2 as well as Figures 6-8 As shown, the cleaning structure 8 also includes a fixing plate 87 fixed to the side wall of the base 1. A pull rod 88 is movably inserted on the fixing plate 87, and a movable plate 85 is connected to the bottom end of the pull rod 88. A limit strip 84 is installed at the bottom end of the movable plate 85, and a spring 86 is connected between the movable plate 85 and the fixing plate 87. A limit groove 83 is provided on the side wall of the cover plate 82 for the limit strip 84 to be inserted.

[0042] When the scraper plate 81 is inserted into the cavity, the pull rod 88 can be released. At this time, the movable plate 85 moves downward under the action of the spring 86 and drives the limiting strip 84 to move downward so as to insert into the limiting groove 83 and limit and fix the cover plate 82, thereby limiting the scraper plate 81, which is conducive to the stable installation of the scraper plate 81.

[0043] Furthermore, when the scraper plate 81 is disassembled, the movable plate 85 can be pulled upward by the pull rod 88, so that the movable plate 85 drives the limiting strip 84 to move upward and move out of the limiting groove 83, and squeeze the spring 86, so that the spring 86 retracts. Then, the scraper plate 81 can be pulled by the cover plate 82 to realize the disassembly of the scraper plate 81. This facilitates the quick disassembly and assembly of the scraper plate 81, which is beneficial for the replacement or cleaning of the scraper plate 81 and ensures effective cleaning of the conveyor belt 62.

[0044] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A building material spraying mechanism, comprising a base (1), a spraying box (2) and a feeding mechanism (6) disposed on the base (1), wherein the spraying box (2) has an inlet and an outlet on its symmetrical sides, and a spraying structure (3) is also disposed on the spraying box (2), and a cleaning brush (4) is disposed in the inlet, characterized in that: The spray box (2) is fixed with a partition (9) and a heating plate (10) inside, and the spray box (2) is also provided with a scraping structure (5). A gap is left between the bottom of the partition (9) and the feeding mechanism (6) for the building material template to pass through. The heating plate (10) is located inside the spray box (2) on the side close to the discharge port. The scraping structure (5) includes a threaded rod (51) screwed to the top of the spray box (2) and a storage cavity opened inside the partition (9). A movable scraping plate (52) is provided in the storage cavity. The bottom end of the threaded rod (51) extends into the storage cavity and is rotatably connected to the top of the scraping plate (52). A through hole is opened in the partition (9) for the threaded rod (51) to pass through, and the through hole communicates with the storage cavity.

2. The building material spraying mechanism according to claim 1, characterized in that: The scraping side of the scraping plate (52) is formed into an arc-shaped scraping section with a rounded transition.

3. The building material spraying mechanism according to claim 1, characterized in that: Both sides of the scraper plate (52) are fitted with sealing strips (53) to seal the gap between it and the inner wall of the spray box (2).

4. The building material spraying mechanism according to claim 1, characterized in that: The feeding mechanism (6) includes a cavity opened on the base (1) and a motor (61) fixed on one side of the base (1). Two feeding rollers (63) are rotatably installed in the cavity, and a conveyor belt (62) is connected between the two feeding rollers (63). The main shaft of the motor (61) is connected to one end of one of the feeding rollers (63).

5. The building material spraying mechanism according to claim 4, characterized in that: A support roller (64) is also rotatably installed inside the cavity, and the support roller (64) is located between two feeding rollers (63).

6. The building material spraying mechanism according to claim 4, characterized in that: The base (1) is also provided with a cleaning structure (8) for cleaning the conveyor belt (62), and the cleaning structure (8) includes a detachable scraper (81) inserted into the cavity. An opening for detaching the scraper (81) is provided on one side of the base (1), and a discharge pipe (7) communicating with the cavity is installed at the bottom end of the base (1). A cover plate (82) for sealing the opening is installed at one end of the scraper (81).

7. The building material spraying mechanism according to claim 6, characterized in that: The cleaning structure (8) also includes a fixing plate (87) fixed on the side wall of the base (1). A pull rod (88) is movably inserted on the fixing plate (87), and a movable plate (85) is connected to the bottom end of the pull rod (88). A limit strip (84) is installed at the bottom end of the movable plate (85), and a spring (86) is connected between the movable plate (85) and the fixing plate (87). A limit groove (83) for the limit strip (84) to be inserted is opened on the side wall of the cover plate (82).

8. The building material spraying mechanism according to claim 1, characterized in that: The spraying structure (3) includes a paint tank (31) and a pump body (32) installed on the top of the spraying box (2), and a spray head (34) fixed inside the spraying box (2) near the feed port. One end of the pump body (32) is connected to the paint tank (31) through a pipe, and the other end is connected to the spray head (34) through a feed pipe (33). An atomizing nozzle is installed at the bottom of the spray head (34).