Pretreatment cleaning device for spraying surface of coating

Abstract

The utility model discloses a coating spraying surface pretreatment cleaning device, and relates to the technical field of coating spraying processing. The device comprises a box body, a plurality of supporting columns are arranged between the two sides of the inner wall of the box body, a cleaning assembly and a filtering assembly are arranged in the box body, and a hot air assembly and a water supply assembly are arranged on the upper portion of the box body. The cleaning assembly comprises an electric push rod arranged on the upper side of the inner wall of the box, an output shaft of the electric push rod is fixedly connected with a round block, a round groove is formed in the round block, a plurality of groove holes are formed in the lower end face of the round block, and the hot air assembly and the water supply assembly are connected with the upper end face of the round block. The electric push rod stretches or contracts to drive the disc to move up and down, the height of the groove hole and the height of the scraper are adjusted, and therefore the position height of the groove hole and the height of the scraper can be adjusted according to the thickness of an object, and the motor is conveniently controlled to work to drive the scraper to move in a reciprocating mode through cooperation of the screw rod and the extending strip. And water stains on the surfaces of the pretreated objects can be conveniently scraped off through the scraping plate.

Description

Technical Field

[0001] This utility model belongs to the field of coating spraying processing, specifically, it relates to a coating spraying surface pretreatment and cleaning device. Background Technology

[0002] Coating spraying requires multiple steps. After each process, the dirt and dust generated on the surface need to be cleaned. Existing equipment for cleaning the coated surface generally uses cleaning brushes to remove the dirt and dust.

[0003] Chinese Patent No. CN218797700U discloses a coating spraying surface pretreatment cleaning device, comprising: a main body, a shell fixedly installed at the bottom of the main body, a lifting device provided above the main body, a cleaning system fixedly installed at the bottom of the lifting device, a placement platform fixedly installed at the bottom of the cleaning system, and a disassembly filter device provided at the bottom of the placement platform.

[0004] The coating spraying surface pretreatment and cleaning device disclosed in the application uses a sensor to detect whether the sprayed coating on the surface is dry. When it is not dry, the device will stop working and wait for the surface to dry before continuing to work. This process can make the single pretreatment work time of the device long, thus affecting its overall work efficiency. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a coating spraying surface pretreatment and cleaning device, which solves the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by this utility model is as follows:

[0007] A pretreatment and cleaning device for coating spraying surfaces includes: a box body, a plurality of support columns installed between the two sides of the inner wall of the box body, a cleaning component and a filter component installed inside the box body, the support columns being located between the cleaning component and the filter component, and a hot air component and a water supply component installed on the upper part of the box body.

[0008] The cleaning assembly includes an electric push rod mounted on the upper side of the inner wall of the chamber. The electric push rod is located between the hot air assembly and the water supply assembly. The output shaft of the electric push rod is fixedly connected to a circular block. The circular block has a circular groove inside. The lower end face of the circular block has multiple slots that communicate with the circular groove. Both the hot air assembly and the water supply assembly are connected to the upper end face of the circular block. Two brackets are mounted on the upper end face of the circular block. The electric push rod is located between the two brackets. A motor is mounted on one side of the bracket. The output shaft of the motor is fixedly connected to a screw. The screw rotates and engages within the bracket. Extension strips are threaded around the screw. Scrapers are mounted on the lower side of the two extension strips. The circular block is located between the two screws. The scraper is located between the support column and the circular block.

[0009] Optionally, the hot air assembly includes a hot air fan installed on the upper side of the housing, an air inlet corresponding to the hot air fan on the upper side of the housing, a conveying pipe connected to the air inlet on the upper side of the inner wall of the housing, a solenoid valve corresponding to the conveying pipe connected to the upper end face of the circular block, and the lower end of the conveying pipe connected to the upper end face of the solenoid valve.

[0010] Optionally, the water supply assembly includes a water pump installed on the upper side of the tank, an inlet corresponding to the water pump on the upper side of the tank, a second delivery pipe connected to the inlet on the upper side of the inner wall of the tank, an electric push rod located between the first delivery pipe and the second delivery pipe, a second solenoid valve corresponding to the second delivery pipe connected to the upper end face of the circular block, and the lower end of the second delivery pipe connected to the upper end face of the second solenoid valve.

[0011] Optionally, the bracket includes a fixing strip mounted on the upper end face of the circular block, an electric push rod located between the two fixing strips, two connecting strips mounted on the opposite outer sides of the two fixing strips, a motor mounted on one side of one of the connecting strips, a screw rod passing through the two connecting strips laterally, and two fixing strips located between the two screw rods.

[0012] Optionally, the filter assembly includes a water filter box with a groove on one side of the housing. The water filter box slides within the groove and is located below the support column. Multiple water outlets are provided on the lower side of the inner wall of the water filter box, and the water outlets penetrate the lower side of the water filter box.

[0013] Optionally, a retaining plate is installed on one side of the water filter box, and a groove corresponding to the retaining plate is provided on one side of the box body. The groove extends vertically and horizontally through the groove. A sealing ring is glued to one side of the retaining plate. The sealing ring is located around the water filter box and between the retaining plate and one side of the groove. A handle is provided on the side of the retaining plate away from the sealing ring.

[0014] Optionally, a drain pipe is connected to one side of the housing, and the drain pipe is connected to the inner cavity of the housing. The drain pipe is located below the filter box.

[0015] Optionally, the box body has an opening on one side and a door hinged to the front of the box body, with the door corresponding to the opening, and a handle on one side of the door.

[0016] By adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art. Of course, any product implementing the present invention does not necessarily need to achieve all of the following advantages at the same time:

[0017] The electric push rod extends or retracts, causing the disc to move up and down, thus adjusting the height of the slots and scraper. This allows the position and height of the slots and scraper to be adjusted according to the thickness of the item. The screw and extension bar work together to control the motor to drive the scraper to reciprocate. The scraper effectively removes water stains from the surface of the pre-treated item. At the same time, the hot air assembly accelerates the drying rate of the pre-treated item surface, improving the efficiency of cleaning the pre-treated item.

[0018] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0019] The accompanying drawings described below are merely some embodiments. Those skilled in the art can obtain other drawings based on these drawings without any creative effort.

[0020] In the picture:

[0021] Figure 1 This is a schematic diagram of the three-dimensional structure of the box.

[0022] Figure 2 This is a schematic diagram of the internal structure of the box;

[0023] Figure 3 This is a schematic diagram of the cross-sectional structure of the box.

[0024] The attached diagram lists the components represented by each number as follows:

[0025] 1. Box body, 2. Support column, 3. Hot air blower, 4. Water pump, 5. Electric push rod, 6. Round block, 7. Slot, 8. Fixing strip, 9. Connecting strip, 10. Motor, 11. Screw, 12. Extension strip, 13. Scraper, 14. Conveying pipe 1, 15. Drain pipe, 16. Box door, 17. Handle 2, 18. Water filter box, 19. Water filter outlet, 20. Clamping plate, 21. Handle 1, 22. Conveying pipe 2.

[0026] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0027] 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.

[0028] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0029] Surface pretreatment for coating spraying is a crucial step in ensuring coating adhesion and quality, involving various technologies and processes. The following is detailed information about surface pretreatment for coating spraying:

[0030] Remove dirt and oil: Ensure the workpiece surface is clean, free of oil and dust, to prevent the formation of a barrier layer between the coating and the substrate.

[0031] Removing rust and oxide layers: For metal workpieces, removing surface rust and oxide layers can prevent the coating from continuing to corrode.

[0032] Increase surface roughness: By increasing surface roughness, the mechanical adhesion between the coating and the substrate is improved.

[0033] Surface activation: Increases surface energy, allowing the coating to better wet and adhere to the substrate.

[0034] Solvent cleaning: Use organic solvents (such as acetone, alcohol, etc.) to dissolve and remove surface oil stains.

[0035] Alkaline cleaning: Use an alkaline solution (such as sodium hydroxide solution) to remove grease and some dirt.

[0036] Sandblasting: Using compressed air to spray sand particles at high speed onto the surface of the workpiece to remove rust and oxide layers, while increasing surface roughness.

[0037] Grinding and polishing: Use tools such as sandpaper and grinding wheels to grind and polish the surface to remove uneven parts.

[0038] Plasma treatment: Utilizes the high-energy ions and active groups of plasma to treat surfaces, removing organic dirt and activating the surface.

[0039] Flame treatment: The high temperature of the flame removes organic dirt from the surface and activates the surface.

[0040] Surface cleaning: This is the first step in pretreatment, mainly used to remove dirt, oil stains, grease, and paint from the surface of the workpiece. Common cleaning methods include: steam degreasing: removing organic dirt from the surface of parts using steam; chemical cleaning: removing surface oil stains using solvent cleaning, alkaline cleaning, etc.

[0041] Surface roughening: Improving coating adhesion by increasing surface roughness. Common methods include: sandblasting: using compressed air to drive abrasive particles to spray onto the workpiece surface to create a rough surface; mechanical grinding: using grinding tools to physically treat the surface.

[0042] Surface activation: Activating the surface through methods such as plasma treatment to increase surface energy.

[0043] Sandblasting equipment: used for sandblasting roughening treatment, usually including sandblasting machine and sandblasting room.

[0044] Cleaning equipment: including spray, immersion and submersible cleaning equipment, suitable for workpieces of different shapes and sizes.

[0045] Plasma treatment equipment: used for surface activation and cleaning, featuring a high degree of automation and intelligence.

[0046] Industrial manufacturing: Widely used in industries such as automobiles, aerospace, and electronics to ensure coating adhesion and durability.

[0047] Aerospace industry: Used for surface treatment of aircraft parts to improve the corrosion resistance and wear resistance of coatings.

[0048] Electronic products: Used for pre-treatment of electronic device housings to ensure coating uniformity and adhesion.

[0049] Construction industry: Used for surface treatment of metal components to improve the corrosion resistance of the coating.

[0050] Market size: The global coating pretreatment market reached RMB 22.804 billion in 2023 and is projected to grow at a CAGR of 6.62% by 2029.

[0051] Development trend: With the increasing environmental protection requirements, environmentally friendly pretreatment technologies such as chromate-free pretreatment are gradually gaining attention.

[0052] Surface pretreatment for coating spraying, through the combination of various technologies and equipment, ensures high-quality coating adhesion and is widely used in various industrial fields. It continues to develop with technological advancements and changes in market demands.

[0053] Coating surface pretreatment and cleaning equipment is used to clean and treat the surface of a workpiece before spraying to ensure better adhesion of the coating to the substrate. Below are some common technical features and applications:

[0054] Lifting and Adjustment System: Many devices are equipped with lifting devices that can adjust the height through hydraulic cylinders and lifting rods to accommodate workpieces of different sizes and shapes.

[0055] Cleaning system: Includes components such as water tank, nozzle and water pump, used to spray cleaning fluid to remove dirt and oil stains from the surface of workpieces.

[0056] Filtration system: The cleaned wastewater flows through the drain outlet to the filter screen for filtration to prevent environmental pollution.

[0057] Cleaning brush assembly: Some devices are equipped with replaceable cleaning brushes that can be adjusted according to the shape and size of the workpiece.

[0058] Industrial manufacturing: Widely used in the automotive, aerospace, and electronics industries to remove dirt, oil, and other contaminants from workpiece surfaces to improve coating adhesion and quality.

[0059] Surface treatment services: In the manufacturing of semiconductor and display panel equipment, there is a large demand for surface treatment, and pretreatment cleaning equipment is an important part of it.

[0060] Market size: With the increasing demand for high-quality surface treatment from downstream industries, the market for coating spraying surface pretreatment equipment continues to grow.

[0061] Technological development trends: In the future, with the continuous advancement of technology, pretreatment equipment will become more automated and intelligent to improve production efficiency and coating quality.

[0062] Chromate-free technology: With increasingly stringent environmental protection requirements, environmentally friendly pretreatment technologies such as chromate-free solutions are gaining importance. These technologies not only eliminate chromium oxide pollution but also reduce the consumption of cleaning water.

[0063] Zirconium salt treatment technology: This is an environmentally friendly surface chemical conversion film technology that is free of phosphorus and chromium and is suitable for corrosion protection of steel parts.

[0064] These devices ensure the cleanliness of the workpiece surface through various technical means, thereby providing a good foundation for coating spraying and improving the quality and performance of the final product.

[0065] Please see Figure 1-3 As shown, this embodiment provides a coating spraying surface pretreatment cleaning device, including: a box 1, a plurality of support columns 2 installed between the two sides of the inner wall of the box 1, a cleaning component and a filter component installed inside the box 1, the support columns 2 located between the cleaning component and the filter component, and a hot air component and a water supply component installed on the upper part of the box 1.

[0066] The cleaning assembly includes an electric push rod 5 installed on the upper side of the inner wall of the housing 1. The electric push rod 5 is located between the hot air assembly and the water supply assembly. The output shaft of the electric push rod 5 is fixedly connected to a round block 6. The round block 6 has a round groove inside. The lower end face of the round block 6 has multiple slots 7, which are connected to the round groove. The hot air assembly and the water supply assembly are both connected to the upper end face of the round block 6. Two brackets are installed on the upper end face of the round block 6. The electric push rod 5 is located between the two brackets. A motor 10 is installed on one side of the bracket. The output shaft of the motor 10 is fixedly connected to a screw 11. The screw 11 is rotatably fitted inside the bracket. An extension strip 12 is threaded around the screw 11. A scraper 13 is installed on the lower side of the two extension strips 12. The round block 6 is located between the two screws 11. The scraper 13 is located between the support column 2 and the round block 6.

[0067] One application of this embodiment is as follows: In use, the item to be pre-treated is first placed on the support column 2, and the electric push rod 5 is extended to push the circular block 6 downwards towards the item. Then, the water supply assembly is controlled to supply water into the circular groove. The water in the groove is sprayed downwards onto the item through the slot holes 7, rinsing its surface. The resulting wastewater flows into the filter assembly through the gaps between the support columns 2. Then, depending on the thickness of the item, the electric push rod 5 is extended or retracted to adjust the height of the circular block 6, support, motor 10, screw 11, extension bar 12, and scraper 13. Then, the two motors 10 are controlled to rotate the screw 11, which drives the extension bar 12 to slide. The sliding extension bar 12 drives the scraper 13 to remove water stains from the item's surface. Finally, the hot air assembly is controlled to deliver hot air into the circular groove, which dries the damp item surface through the slot holes 7. It should be noted that all electrical equipment involved in this application can be powered by a battery or an external power source.

[0068] The electric push rod 5 extends or retracts to move the disc up and down, thereby adjusting the height of the slot 7 and the scraper 13. This allows the position and height of the slot 7 and the scraper 13 to be adjusted according to the thickness of the item. The screw 11 and the extension bar 12 work together to control the motor 10 to drive the scraper 13 to reciprocate. The scraper 13 helps to remove water stains from the surface of the pre-treated item. At the same time, the hot air assembly accelerates the drying rate of the pre-treated item surface, improving the efficiency of cleaning the pre-treated item.

[0069] like Figure 2As shown, the hot air assembly of this embodiment includes a hot air blower 3 installed on the upper side of the housing 1. The upper side of the housing 1 is provided with an air inlet corresponding to the hot air blower 3. The upper side of the inner wall of the housing 1 is provided with a conveying pipe 14 connected to the air inlet. The upper end face of the circular block 6 is connected to an electromagnetic valve 1 corresponding to the conveying pipe 14. The lower end of the conveying pipe 14 is connected to the upper end face of the electromagnetic valve 1. By opening the electromagnetic valve 1, hot air can enter the circular groove along the conveying pipe 14. By closing the electromagnetic valve 1, the probability of water entering the conveying pipe 14 is reduced.

[0070] like Figure 2 As shown, the water supply assembly in this embodiment includes a water pump 4 installed on the upper side of the housing 1. A water pipe is connected to the upper side of the water pump 4, and a water source is connected to the outside of the water pipe. The upper side of the housing 1 is provided with a water inlet corresponding to the water pump 4. A second delivery pipe 22 connected to the water inlet is installed on the upper side of the inner wall of the housing 1. An electric push rod 5 is located between the first delivery pipe 14 and the second delivery pipe 22. The upper end face of the circular block 6 is connected to a second electromagnetic valve corresponding to the second delivery pipe 22. The lower end of the second delivery pipe 22 is connected to the upper end face of the second electromagnetic valve. By opening the second electromagnetic valve, water can flow along the second delivery pipe 22 into the circular groove. By closing the second electromagnetic valve, the probability of hot air entering the second delivery pipe 22 is reduced.

[0071] like Figure 2 As shown, the bracket in this embodiment includes a fixing strip 8 mounted on the upper surface of the circular block 6, an electric push rod 5 located between two fixing strips 8, two connecting strips 9 mounted on the opposite outer sides of the two fixing strips 8, a motor 10 mounted on one side of one of the connecting strips 9, a screw 11 passing through the two connecting strips 9 laterally, and two fixing strips 8 located between two screws 11. The fixing strips 8 and connecting strips 9 cooperate to facilitate the support of the motor 10 and the screw 11.

[0072] like Figure 3 As shown, the filter assembly of this embodiment includes a water filter box 18. A groove is provided on one side of the housing 1, and the water filter box 18 is slidably fitted in the groove. The water filter box 18 is located below the support column 2. A plurality of water filter ports 19 are provided on the lower side of the inner wall of the water filter box 18. The water filter ports 19 penetrate through the lower side of the water filter box 18. The water filter box 18 and the groove are matched to facilitate the removal of the water filter box 18 from the groove to clean impurities. The water filter ports 19 facilitate the interception of impurities in the water filter box 18.

[0073] like Figure 1 , 2As shown, in this embodiment, a retaining plate 20 is installed on one side of the water filter box 18, and a slot corresponding to the retaining plate is provided on one side of the box body 1. The length and width of the slot are both greater than the length and width of the groove. The slot penetrates the groove vertically and horizontally. A sealing ring is glued to one side of the retaining plate 20. The sealing ring is located around the water filter box 18 and between the retaining plate 20 and the slot. A handle 21 is provided on the side of the retaining plate 20 away from the sealing ring. The sealing ring improves the sealing performance of the retaining plate 20 to the slot, and the handle 21 makes it easier for the user to grip and improves the convenience of the user to pull the water filter box 18 out of the box body 1.

[0074] like Figure 1 As shown, in this embodiment, a drain pipe 15 is connected to one side of the box 1. The drain pipe 15 is connected to the inner cavity of the box 1. The drain pipe 15 is located below the filter box 18. A sewage recycling box or a sewer pipe is connected to the outside of the drain pipe 15. The sewage at the bottom of the box 1 can be discharged through the drain pipe 15.

[0075] like Figure 1 As shown, the box body 1 in this embodiment has a box opening on one side, and a box door 16 is hinged to the front of the box body 1. The box door 16 corresponds to the box opening, and a handle 2 17 is provided on one side of the box door 16. The box door 16 reduces the probability of water splashing out of the box opening during the cleaning of pre-treated items, and the handle 2 17 improves the convenience for users to open and close the box door 16.

[0076] This utility model is not limited to the above-described embodiments. Anyone should know that structural changes made under the guidance of this utility model, and any technical solutions that are the same as or similar to this utility model, fall within the protection scope of this utility model. Technical aspects, shapes, and structures not described in detail in this utility model are all publicly known technologies.

Claims

1. A coating spray surface pre-treatment cleaning apparatus, characterised in that, The utility model relates to a kind of automatic cleaning and filtering device for agricultural products, including: Box (1), multiple support columns (2) are equipped between the inside wall both sides of box (1), cleaning assembly and filter assembly are provided in box (1), hot air assembly and water supply assembly are equipped on the upper portion of box (1); Cleaning assembly includes electric push rod (5) equipped on the upper side of the inner wall of box (1), the output shaft of electric push rod (5) is fixedly connected with round block (6), round block (6) is equipped with circular groove, the lower end surface of round block (6) is equipped with multiple slot holes (7), and hot air assembly and water supply assembly are connected with the upper end surface of round block (6), two supports are equipped on the upper end surface of round block (6), motor (10) is equipped on the side of support, the output shaft of motor (10) is fixedly connected with screw rod (11), and screw rod (11) is threadedly cooperated with extension strip (12) on the side, the lower side of two extension strips (12) is equipped with scraper (13), and scraper (13) is located between support column (2) and round block (6).

2. A coating spray surface pre-treatment cleaning apparatus as claimed in claim 1, wherein, Hot air assembly includes hot air machine (3) equipped on the upper side of box (1), air inlet corresponding with hot air machine (3) is equipped on the upper side of box (1), conveying pipe one (14) is equipped on the upper side of the inner wall of box (1) and is communicated with air inlet, and the upper end surface of round block (6) is connected with electromagnetic valve one corresponding with conveying pipe one (14).

3. A coating spray surface pre-treatment cleaning apparatus as defined in claim 1, wherein, Water supply assembly includes water pump (4) equipped on the upper side of box (1), water inlet corresponding with water pump (4) is equipped on the upper side of box (1), conveying pipe two (22) is equipped on the upper side of the inner wall of box (1) and is communicated with water inlet, and the upper end surface of round block (6) is connected with electromagnetic valve two corresponding with conveying pipe two (22).

4. A coating spray surface pre-treatment cleaning apparatus as defined in claim 1, wherein, Support includes fixed strip (8) equipped on the upper end surface of round block (6), two fixed strips (8) are equipped with two connecting strips (9) on the opposite sides, motor (10) is equipped on the side of one of connecting strips (9), and screw rod (11) is transversely through two connecting strips (9).

5. A coating spray surface pre-treatment cleaning apparatus as defined in claim 1, wherein, Filter assembly includes filter box (18), recess is equipped on the side of box (1), filter box (18) is slidingly fitted in recess, and multiple water filtering openings (19) are equipped on the lower side of the inner wall of filter box (18).

6. A coating spray surface pre-treatment cleaning apparatus as claimed in claim 5, wherein, One side of filter box (18) is equipped with clamping plate (20), and slot corresponding with clamping plate is equipped on the side of box (1), and sealing ring is glued on the side of clamping plate (20).

7. A coating spray surface pre-treatment cleaning apparatus as defined in claim 5, wherein, Drain pipe (15) is connected on the side of box (1), and drain pipe (15) is located below filter box (18).

8. A coating spray surface pre-treatment cleaning apparatus as defined in claim 1, wherein, Box mouth is equipped on the side of box (1), and box door (16) is hinged on the front of box (1).

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