A spray coating structure for rust prevention on mold surfaces

Abstract

This utility model discloses a spraying structure for rust prevention on mold surfaces, belonging to the technical field of rust prevention treatment for mold surfaces. The key technical points include a spraying frame with a movable spraying component inside. Drying components are located on both sides of the spraying frame. The movable spraying component includes a lifting cylinder fixedly connected to the top of the spraying frame. This solution solves the problems of existing rust prevention spraying structures for mold surfaces, which typically rely on manual labor or fixed nozzles, resulting in low automation, low spraying efficiency, and uneven coating thickness due to human error or fixed nozzle position, affecting the quality of rust prevention treatment. Furthermore, rapid drying is often difficult after spraying, making the rust-preventive coating on the mold surface susceptible to damage or contamination from external contact or dust adhesion, affecting the integrity and protective effect of the coating.

Description

Technical Field

[0001] This utility model relates to the field of mold surface anti-rust treatment technology, and in particular to a spraying structure for rust on mold surfaces. Background Technology

[0002] Molds are mostly made of metal materials, which are highly susceptible to corrosion from oxygen, moisture, acid and alkali media and other corrosive substances in the environment during production, storage and use, thus causing rusting. This leads to increased surface roughness and decreased dimensional accuracy of the mold, seriously affecting the surface quality and dimensional accuracy of the die castings and increasing the scrap rate.

[0003] To address the aforementioned issues, existing patents have provided solutions. However, existing spraying structures for rust prevention on mold surfaces typically rely on manual or fixed spray nozzles for spraying, resulting in low automation and low spraying efficiency. Furthermore, uneven coating thickness can easily occur due to human error or fixed nozzle positions, affecting the quality of rust prevention treatment. Moreover, rapid drying is usually not feasible after spraying, making the rust-preventive coating on the mold surface susceptible to damage or contamination from external contact or dust adhesion, thus affecting the integrity and protective effect of the rust-preventive coating.

[0004] Therefore, a spraying structure for rust prevention on mold surfaces is proposed. Utility Model Content

[0005] The purpose of this invention is to provide a spraying structure for rust prevention on mold surfaces. This structure solves the problems of existing rust prevention spraying structures for mold surfaces, which typically rely on manual or fixed spray nozzles, resulting in low automation, low spraying efficiency, uneven coating thickness due to human error or fixed nozzle position, affecting the quality of rust prevention treatment, and difficulty in achieving rapid drying after spraying. This makes the rust-preventive coating on the mold surface susceptible to damage or contamination from external contact or dust adhesion, affecting the integrity and protective effect of the rust-preventive coating.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a spraying structure for rust prevention on mold surfaces, comprising a spraying frame, a movable spraying assembly inside the spraying frame, and drying assemblies on both sides of the spraying frame. The movable spraying assembly includes a lifting cylinder fixedly connected to the top of the spraying frame, a top seat fixedly connected to the output end of the lifting cylinder, and transverse moving seats fixedly connected to both sides of the bottom of the top seat. A horizontal axis drive screw is fixedly connected inside the transverse moving seat, and a longitudinal axis support is threadedly connected to the output end of the horizontal axis drive screw. A limit slider is fixedly connected to the outer side of the longitudinal axis support, and a bidirectional screw adjuster is fixedly connected inside the longitudinal axis support. A nozzle mounting plate is threadedly connected to both sides of the bidirectional screw adjuster, and the nozzle mounting plate is slidably connected to the limit slider. A nozzle assembly is provided at the bottom of the nozzle mounting plate.

[0007] Preferably, the drying assembly includes a hot air hood fixedly connected to the inner wall of the spraying machine frame, and a sweeping air guide plate is fixedly connected inside the hot air hood.

[0008] Preferably, a dustproof frame is fixedly connected to the outer side of the hot air hood, a power supply body is fixedly connected to the outer side of the dustproof frame, and a heating tube is electrically connected to the inner side of the power supply body.

[0009] Preferably, a sealing sleeve is provided on the outer side of the dustproof frame, the sealing sleeve is made of rubber, and a wind speed regulator is provided inside the dustproof frame.

[0010] Preferably, a drive mechanism is fixedly connected to the front side of the spraying frame, and a protective door is provided inside the drive mechanism, with an observation window opened on the front side of the protective door.

[0011] Preferably, a drive wheel is fixedly connected inside the spraying frame, a movable toothed plate is engaged with the outer side of the drive wheel, a placement plate is fixedly connected to the top of the movable toothed plate, and a guide rail is fixedly connected inside the spraying frame, with the guide rail slidably connected to the placement plate.

[0012] Preferably, a storage chamber is fixedly connected to the rear side of the longitudinal axis support, a sealing valve is provided on the outside of the storage chamber, a micro metering pump is fixedly connected to the rear side of the longitudinal axis support, the inlet end of the micro metering pump is connected to the storage chamber, the output end of the micro metering pump is connected to a connecting pipe, and the connecting pipe is connected to the nozzle assembly.

[0013] Preferably, a guide rod is fixedly connected to the top of the top seat, and the side of the guide rod away from the top seat is slidably connected to the spraying machine frame.

[0014] Compared with the prior art, the beneficial effects of this utility model are: 1. This application enables precise and comprehensive spraying of the mold surface through a mobile spraying component, which can adapt to the spraying needs of molds of different sizes and improve the versatility of the equipment. Compared with traditional spraying devices, this component realizes multi-dimensional and automated spraying operation, solving the problems of incomplete coverage, low efficiency and uneven coating that exist in traditional manual spraying or fixed nozzle spraying. It can achieve efficient and high-quality anti-rust coating coverage on the surface of various molds. 2. This application enables the rapid and uniform curing of the coating on the surface of the mold after spraying through the drying component, ensuring consistent drying effect. Compared with traditional drying devices, this component achieves intelligent and precise drying control, solving problems such as uneven heat distribution, susceptibility to contamination, and high energy consumption in traditional drying methods. It can achieve rapid curing of anti-rust coatings and improve the overall efficiency and quality of mold anti-rust treatment. Attached Figure Description

[0015] Figure 1 This is an overall structural diagram of the spray coating structure for rust prevention on the surface of a mold according to this utility model; Figure 2 This is a schematic diagram of the structure of the mobile spraying assembly of this utility model; Figure 3 This is a schematic diagram of the drying assembly of this utility model; Figure 4 This is a cross-sectional view of the spraying machine frame of this utility model; Figure 5 This is a rear view of the longitudinal axis support of this utility model; Figure 6 This is a front view of the longitudinal axis support of this utility model.

[0016] In the diagram, 1. Spraying frame; 2. Drive mechanism; 3. Protective door; 4. Moving spraying assembly; 401. Lifting cylinder; 402. Top seat; 403. Lateral moving seat; 404. Horizontal axis drive screw; 405. Vertical axis support; 406. Limit slider; 407. Two-way screw adjuster; 408. Sprayer mounting plate; 409. Sprayer assembly; 5. Drying assembly; 501. Hot air hood; 502. Sweeping air guide plate; 503. Dustproof frame; 504. Power supply body; 505. Heating tube; 506. Sealing sleeve; 507. Wind speed regulator; 6. Drive wheel; 7. Moving toothed plate; 8. Placement plate; 9. Guide rail; 10. Storage compartment; 11. Sealing valve; 12. Miniature metering pump; 13. Connecting pipe; 14. Guide support rod. Detailed Implementation

[0017] 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.

[0018] Please see Figure 1-6 The present invention provides the following technical solution: A spraying structure for rust prevention on mold surfaces includes a spraying frame 1, a movable spraying assembly 4 inside the spraying frame 1, and drying assemblies 5 on both sides of the spraying frame 1. The movable spraying assembly 4 includes a lifting cylinder 401 fixedly connected to the top of the spraying frame 1. A top seat 402 is fixedly connected to the output end of the lifting cylinder 401. A transverse moving seat 403 is fixedly connected to both sides of the bottom of the top seat 402. A transverse axis drive screw 404 is fixedly connected inside the transverse moving seat 403. A longitudinal axis support 405 is threadedly connected to the output end of the transverse axis drive screw 404. A limit slider 406 is fixedly connected to the outer side of the longitudinal axis support 405. A bidirectional screw adjuster 407 is fixedly connected inside the longitudinal axis support 405. A nozzle mounting plate 408 is threadedly connected to both sides of the bidirectional screw adjuster 407. The nozzle mounting plate 408 is slidably connected to the limit slider 406. A nozzle assembly 409 is provided at the bottom of the nozzle mounting plate 408.

[0019] In this embodiment: the piston rod of the lifting cylinder 401 extends or retracts, driving the bottom top seat 402 to move vertically. Its guide rod 14 slides synchronously along the slide rail of the spraying frame 1 with the top seat 402, ensuring smooth lifting and lowering of the top seat 402. Inside the transverse moving seats 403 on both sides of the bottom of the top seat 402, the transverse shaft drive screw 404 rotates under the drive of the motor. Since the longitudinal shaft support 405 is threadedly connected to the transverse shaft drive screw 404, the rotating screw will drive the longitudinal shaft support 405 to move horizontally along the track of the transverse moving seat 403, adjusting the lateral relative position of the nozzle assembly 409 and the mold. When the longitudinal shaft support 405 moves... Once in the appropriate position, the internal bidirectional screw adjuster 407 is activated. Since the threads on both sides rotate in opposite directions, the rotation will cause the nozzle mounting plates 408 on both sides to move closer or further apart along the limiting sliders 406 on the outer side of the longitudinal axis support 405, thereby adapting to the spraying requirements of molds of different widths. At the same time, the storage chamber 10 on the rear side of the longitudinal axis support 405 opens the sealing valve 11, and the micro metering pump 12 draws the paint from the storage chamber 10 and delivers it to the nozzle assembly 409 at the bottom of the nozzle mounting plate 408 through the connecting pipe 13. With the cooperation of the above position adjustment, the nozzle assembly 409 sprays the anti-rust paint evenly onto the surface of the mold, completing the full surface coverage spraying.

[0020] Specifically, such as Figure 3 As shown, the drying assembly 5 includes a hot air hood 501 fixedly connected to the inner wall of the spraying frame 1, and a sweeping air guide plate 502 is fixedly connected inside the hot air hood 501.

[0021] Specifically, such as Figure 3 As shown, a dustproof frame 503 is fixedly connected to the outside of the hot air hood 501, a power supply body 504 is fixedly connected to the outside of the dustproof frame 503, and a heating tube 505 is electrically connected to the inside of the power supply body 504.

[0022] Specifically, such as Figure 3 As shown, a sealing sleeve 506 is fitted on the outside of the dustproof frame 503. The sealing sleeve 506 is made of rubber. A wind speed regulator 507 is installed inside the dustproof frame 503.

[0023] In this embodiment: after the mold is coated, the drying assembly 5 starts working. Its air guide plate 502 rotates under the action of airflow, directing the airflow entering the hood to various areas of the mold surface, avoiding concentrated airflow that could cause localized drying to be too fast or too slow. Its dustproof frame 503 can block dust and impurities in the outside air from entering the hot air hood 501, preventing contamination of the incompletely cured coating. At the same time, its rubber sealing sleeve 506 tightly fits the inner wall of the frame, enhancing the seal between the hot air hood 501 and the frame, reducing heat loss during the drying process. The power supply unit 504 on the outside of the dustproof frame 503 is connected to the circuit to supply power to the heating tube 505 on the inside. After the heating tube 505 is powered on, it generates heat, causing the internal temperature of the hot air cover 501 to gradually rise to the preset value. The wind speed regulator 507 inside the dustproof frame 503 automatically adjusts the air intake according to the thickness of the coating. If the coating is thick, the wind speed regulator 507 reduces the wind speed to prolong the time that the hot airflow acts on the mold surface, ensuring that the solvent in the deep layer of the coating is fully evaporated. If the coating is thin, the wind speed is increased to accelerate the surface drying so that the anti-rust coating can be quickly cured and formed.

[0024] Specifically, such as Figure 1 As shown, a drive mechanism 2 is fixedly connected to the front side of the spraying frame 1. A protective door 3 is installed inside the drive mechanism 2, and an observation window is opened on the front side of the protective door 3.

[0025] Specifically, such as Figure 4 As shown, a drive wheel 6 is fixedly connected inside the spraying frame 1, a movable toothed plate 7 is meshed with the outside of the drive wheel 6, a placement plate 8 is fixedly connected to the top of the movable toothed plate 7, and a guide rail 9 is fixedly connected inside the spraying frame 1, with the guide rail 9 slidably connected to the placement plate 8.

[0026] In this embodiment: By setting up a drive mechanism 2 and a protective door 3, when the equipment is started, the internal transmission components of the drive mechanism 2 drive the protective door 3 to open along the track, making it easy for the operator to place the mold to be processed into the machine frame. After the mold is placed in place, the drive mechanism 2 runs in reverse, driving the protective door 3 to close, forming a relatively enclosed working space, preventing paint from splashing during spraying or heat from escaping during drying. At the same time, the observation window on the front of the protective door 3 is made of transparent high-temperature resistant material, allowing the operator to observe the spraying status and drying progress of the mold inside the machine frame in real time without opening the protective door 3. This ensures operational safety and reduces environmental interference to the internal operation. The drive wheel 6 and moving toothed plate are also included. 7. Placement plate 8 and guide rail 9: During use, the mold to be sprayed is placed stably on the placement plate 8. The drive wheel 6 inside the spraying frame 1 starts to rotate under the drive of the power unit. Since the drive wheel 6 meshes with the moving toothed plate 7, the rotating drive wheel 6 will drive the moving toothed plate 7 to move horizontally, thereby driving the placement plate 8 at the top to move synchronously. The bottom of the placement plate 8 is slidably connected to the guide rail 9. The guide rail 9 constrains the movement direction of the placement plate 8, ensuring that the placement plate 8 does not deviate or shake during the movement and always remains stable. When the mold needs to be sprayed, the drive wheel 6 rotates in the forward direction, and the moving toothed plate 7 drives the placement plate 8 to move precisely along the guide rail 9 to the spraying position corresponding to the mobile spraying component 4, which improves the work efficiency.

[0027] Specifically, such as Figure 5 As shown, a storage chamber 10 is fixedly connected to the rear side of the longitudinal axis support 405, and a sealing valve 11 is provided on the outer side of the storage chamber 10. A micro metering pump 12 is fixedly connected to the rear side of the longitudinal axis support 405. The feed end of the micro metering pump 12 is connected to the storage chamber 10, and the output end of the micro metering pump 12 is connected to a connecting pipe 13. The connecting pipe 13 is connected to the nozzle assembly 409.

[0028] Specifically, such as Figure 1 As shown, a guide rod 14 is fixedly connected to the top of the top seat 402, and the side of the guide rod 14 away from the top seat 402 is slidably connected to the spraying frame 1.

[0029] In this embodiment: A storage chamber 10, a sealing valve 11, a micro metering pump 12, and a connecting pipe 13 are provided. The storage chamber 10 is pre-stored with an appropriate amount of anti-rust coating. The sealing valve 11 is closed when not in operation to prevent coating evaporation or impurities from entering. When anti-rust coating needs to be added, the sealing valve 11 opens under the control system. When spraying is required, the micro metering pump 12 starts, and its feed end draws anti-rust coating from the storage chamber 10 through the pipe. At this time, the micro metering pump 12 precisely controls the amount of coating drawn in according to preset spraying parameters. The drawn-in coating enters the connecting pipe 13 through the output end of the micro metering pump 12. The connecting pipe 13 is made of a flexible, corrosion-resistant material and can be used with the spray nozzle. The flexible movement and deformation of the mounting plate 408 ultimately delivers the paint stably to the nozzle assembly 409. Through the precise control of the micro metering pump 12, it can avoid waste caused by excessive paint supply or uneven coating caused by insufficient supply, ensuring that the amount of paint sprayed by the nozzle assembly 409 always matches the spraying requirements and guaranteeing the uniformity of the coating on the mold surface. By setting the guide rod 14, when the lifting cylinder 401 pushes the top seat 402 to move up and down in the vertical direction, its guide rod 14 slides along the slide rail with the movement of the top seat 402, which can effectively limit the lateral displacement of the top seat 402 during the lifting process, and avoid the unstable distance between the nozzle assembly 409 and the mold surface caused by the shaking of the top seat 402, thereby preventing the situation of local spraying being too thick, too thin, or missed.

[0030] Working Principle: In the process of using this spraying structure for rust prevention on mold surfaces, the protective door 3 is first opened by the drive mechanism 2. Then, the mold to be sprayed is placed on the placement plate 8. At this time, the drive wheel 6 starts to rotate, and the moving toothed plate 7, which meshes with the drive wheel 6, drives the placement plate 8 to move smoothly along the guide rail 9, conveying the mold to the spraying station inside the spraying frame 1. The protective door 3 then closes, and the internal working status can be observed in real time through the observation window on its front side. At this time, the lifting cylinder 401 is activated, and its output end pushes the top seat 402 to move up and down. Simultaneously, its guide rod 14 provides stable guidance for the lifting of the top seat 402, preventing the top seat 402 from shifting during movement. Next, the motor connected to the horizontal axis drive screw 404 is started, and then the horizontal axis drive… The moving lead screw 404 begins to rotate. Since the longitudinal axis support 405 is threadedly connected to the transverse axis drive lead screw 404, the longitudinal axis support 405 moves laterally along the transverse moving seat 403 under the drive of the transverse axis drive lead screw 404. When the longitudinal axis support 405 moves to the appropriate position, the bidirectional lead screw adjusting mechanism 407 inside it is activated. Then, the threads on both sides of the bidirectional lead screw adjusting mechanism 407 rotate in opposite directions, causing the nozzle mounting plates 408 on both sides to move closer or further apart along the limit slider 406, thereby adjusting the distance between the two nozzle mounting plates 408 to adapt to the spraying requirements of molds of different widths. Its storage chamber 10 stores anti-rust paint. Then, the micro metering pump 12 is activated, sucking the paint in the storage chamber 10 through the feed end and then through the connecting pipe 13 at the output end. The coating is delivered to the nozzle assembly 409, where the micro metering pump 12 precisely controls the amount of coating delivered, ensuring a uniform and stable coating supply during spraying. During spraying, the lifting cylinder 401 continuously adjusts the height of the top seat 402, which, in conjunction with the horizontal axis drive screw 404 driving the lateral movement of the vertical axis support 405, and the bidirectional screw adjuster 407 adjusting the spacing of the nozzle mounting plates 408, allows the nozzle assembly 409 to fully cover the mold surface, achieving uniform spraying. After spraying, the drying assembly 5 begins operation. The air guide plate 502 inside the hot air hood 501 guides the airflow to a uniform distribution, preventing localized airflow turbulence from affecting the drying effect. Simultaneously, the dustproof frame 503 is fixed to the outside of the hot air hood 501 to prevent external dust from entering the drying area and contaminating the mold surface. Furthermore, the outer sealing sleeve 506 tightly fits the inner wall of the spraying frame 1, enhancing the sealing of the drying space and reducing heat loss. Next, the power supply unit 504 is activated, supplying power to the heating element 505. The heating element 505 generates heat, raising the internal temperature of the hot air hood 501. The airflow regulator 507 adjusts the airflow speed entering the hot air hood 501 according to the thickness and type of the coating on the mold surface. When the coating is thick, the airflow speed is reduced to extend the drying time and ensure thorough drying; when the coating is thin, the airflow speed is increased to improve drying efficiency. Through the combined effects of the heat generated by the heating element 505, the airflow guided by the sweeping guide plate 502, and the airflow controlled by the airflow regulator 507, hot air forms a stable circulation within the hot air hood 501.The solvent in the coating is applied evenly to the mold surface and evaporates rapidly, allowing the anti-rust coating to cure and solidify. After drying, the drive wheel 6 operates again, transporting the mold via the placement plate 8 to the outside of the spraying frame 1. At this point, the protective door 3 opens, allowing the mold that has undergone anti-rust treatment to be removed.

[0031] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements 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 spraying structure for rust prevention on mold surfaces, comprising a spraying frame (1), characterized in that: The spraying frame (1) is equipped with a movable spraying assembly (4). Drying assemblies (5) are located on both sides of the spraying frame (1). The movable spraying assembly (4) includes a lifting cylinder (401) fixedly connected to the top of the spraying frame (1). A top seat (402) is fixedly connected to the output end of the lifting cylinder (401). Lateral moving seats (403) are fixedly connected to both sides of the bottom of the top seat (402). A horizontal shaft drive screw (404) is fixedly connected inside the lateral moving seat (403). The output end of the horizontal axis drive screw (404) is threadedly connected to a vertical axis support (405). A limit slider (406) is fixedly connected to the outer side of the vertical axis support (405). A bidirectional screw adjuster (407) is fixedly connected inside the vertical axis support (405). Both sides of the bidirectional screw adjuster (407) are threadedly connected to nozzle mounting plates (408). The nozzle mounting plates (408) are slidably connected to the limit slider (406). A nozzle assembly (409) is provided at the bottom of the nozzle mounting plate (408).

2. The spraying structure for rust prevention on mold surfaces according to claim 1, characterized in that: The drying assembly (5) includes a hot air hood (501) fixedly connected to the inner wall of the spraying frame (1), and a sweeping air guide plate (502) is fixedly connected inside the hot air hood (501).

3. The spraying structure for rust prevention on mold surfaces according to claim 2, characterized in that: A dustproof frame (503) is fixedly connected to the outside of the hot air hood (501), a power supply body (504) is fixedly connected to the outside of the dustproof frame (503), and a heating tube (505) is electrically connected to the inside of the power supply body (504).

4. The spraying structure for rust prevention on mold surfaces according to claim 3, characterized in that: The dustproof frame (503) is fitted with a sealing sleeve (506) on the outside. The sealing sleeve (506) is made of rubber. The dustproof frame (503) is equipped with a wind speed regulator (507) inside.

5. The spraying structure for rust prevention on mold surfaces according to claim 1, characterized in that: The front side of the spraying frame (1) is fixedly connected to a drive mechanism (2), and a protective door (3) is provided inside the drive mechanism (2). An observation window is provided on the front side of the protective door (3).

6. The spraying structure for rust prevention on mold surfaces according to claim 1, characterized in that: The spraying frame (1) is fixedly connected to a drive wheel (6), and a movable toothed plate (7) is engaged with the outside of the drive wheel (6). A placement plate (8) is fixedly connected to the top of the movable toothed plate (7). A guide rail (9) is fixedly connected to the inside of the spraying frame (1), and the guide rail (9) is slidably connected to the placement plate (8).

7. The spraying structure for rust prevention on mold surfaces according to claim 1, characterized in that: A storage chamber (10) is fixedly connected to the rear side of the longitudinal axis support (405). A sealing valve (11) is provided on the outside of the storage chamber (10). A micro metering pump (12) is fixedly connected to the rear side of the longitudinal axis support (405). The feed end of the micro metering pump (12) is connected to the storage chamber (10). The output end of the micro metering pump (12) is connected to a connecting pipe (13). The connecting pipe (13) is connected to the nozzle assembly (409).

8. The spraying structure for rust prevention on mold surfaces according to claim 1, characterized in that: The top of the top seat (402) is fixedly connected to a guide rod (14), and the side of the guide rod (14) away from the top seat (402) is slidably connected to the spraying frame (1).

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