A paint scraping device for sampling waterborne paints

Abstract

The utility model relates to the field of water -based paint sampling, specifically is a kind of paint scraping device for water -based paint sampling, including sampling table, sampling table top is fixed with support, support top is equipped with cylinder one and cylinder two, and the telescopic end of cylinder one is equipped with scraping assembly, and the telescopic end of cylinder two is equipped with sampling assembly, and scraping assembly includes connecting barrel, and connecting barrel is fixed in the telescopic end of cylinder one, and plug-in tube is inserted in connecting barrel, and plug-in hole is formed in the surface of plug-in tube;The utility model is driven scraping assembly to move stably, regularly by cylinder one before sampling, can accurately scrape the skin, hard film or impurity pollution layer formed by oxidation, drying or environmental contact on water -based paint surface, reaches effectively avoided the interference of these non-uniform surface layer to detection result, to ensure that the sample can truly reflect the characteristics of the uniform body inside paint, improves the representative effect of sample.

Description

Technical Field

[0001] This utility model relates to the field of water-based coating sampling, specifically a coating scraping device for water-based coating sampling. Background Technology

[0002] Water-based coatings are widely used in building decoration, industrial protection and other fields due to their environmental protection and low VOC emissions. To ensure that the quality of the coatings meets the standards, sampling and testing are an indispensable step in the production, quality inspection and construction process. However, during the storage or transportation of water-based coatings, the surface is prone to forming skin, hard film or impurity contamination layer due to oxidation, drying or environmental contact. If samples are taken directly, these non-uniform surface layers will significantly interfere with the test results. Therefore, the surface interference layer needs to be scraped off before sampling to expose the uniform coating body inside.

[0003] In existing technologies, scraping operations mostly rely on manual labor. Manual scraping depends on the operator's experience, making it difficult to ensure the uniformity of scraping depth and range, resulting in insufficient sample representativeness. Furthermore, traditional scrapers are mostly fixed structures, making it difficult to adapt to different sizes of paint cans, barrels, or substrate surfaces, and replacement is difficult after the scraper blades wear out. Utility Model Content

[0004] To overcome the shortcomings of existing technologies and solve the problems of insufficient sample representativeness due to difficulty in ensuring the uniformity of scraping depth and range when relying on manual scraping, as well as the limited applicability and inconvenience of replacing fixed-drive scrapers, this utility model proposes a paint scraping device for sampling water-based paints.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a water-based coating sampling scraping device, including a sampling platform, a bracket fixed on the top of the sampling platform, a cylinder one and a cylinder two provided on the top of the bracket, a scraping component provided at the telescopic end of the cylinder one, and a sampling component provided at the telescopic end of the cylinder two.

[0006] The scraping assembly includes a connecting cylinder, which is fixed to the telescopic end of cylinder one. An insert is inserted into the connecting cylinder, and an insertion hole is opened on the surface of the insert. A pin is inserted laterally into the surface of the connecting cylinder. One end of the pin passes through the connecting cylinder and is threadedly connected to the insertion hole. A rotating shaft is rotatably provided inside the insert. A connecting block is fixed at the bottom end of the rotating shaft. A scraper is fixed at the bottom of the connecting block. The scraper is arc-shaped, and a push plate is fixed at one end of the scraper.

[0007] Preferably, the push plate includes a sharp part and an arc-shaped part, the arc-shaped part being located above the scraper and the sharp part being located below the scraper, the sharp part being perpendicular to the top of the sampling stage.

[0008] Preferably, the insert has a rotating cavity, the rotating shaft rotates between the inner walls of the rotating cavity, a gear one is fixed at the top of the rotating shaft, a gear two rotates on the top wall of the rotating cavity, the gear one and gear two mesh, a fixing frame is fixed on the top wall of the rotating cavity, a motor two is fixed at the bottom of the fixing frame, and the output end of the motor two is fixed to the gear two.

[0009] Preferably, the sampling assembly includes a support plate, which is fixed to the telescopic end of the cylinder 2. A micro pump is fixed to the top of the support plate, and a sampling tube is fixed to the bottom of the support plate. The output end of the micro pump is connected to the sampling tube, and the surface of the sampling tube is marked with graduations.

[0010] Preferably, the bottom of the bracket is rotatably provided with a connecting frame, and cylinder one and cylinder two are symmetrically fixed at both ends of the bottom of the connecting frame. The top of the bracket is rotatably provided with gear three, which passes through the top of the bracket and is fixed to the connecting frame via a connecting shaft. The top of the bracket is slidably provided with a rack, which meshes with the rack. The top of the bracket is fixed with electric push rod two, and the telescopic end of electric push rod two is fixed to one side of the rack.

[0011] Preferably, the sampling platform has two symmetrically arranged movable frames on the top, a bidirectional lead screw is rotatably arranged on the inner side of the bottom of the sampling platform, a motor is fixed on one side of the sampling platform, the output end of the motor is fixed to the bidirectional lead screw, and the bidirectional lead screw is threadedly connected to both movable frames.

[0012] Preferably, there are gaps between the movable frame and the top of the sampling stage.

[0013] Preferably, an electric push rod is fixed to the top of the movable frame, and a clamp is fixed to the telescopic end of the electric push rod.

[0014] The advantages of this utility model are:

[0015] This invention, by incorporating a scraping component, uses a cylinder to drive the scraping component in a stable and regular motion before sampling. This allows for the precise scraping of skins, hard films, or impurity layers formed on the surface of water-based coatings due to oxidation, drying, or environmental contact. This effectively avoids interference from these non-uniform surface layers on the test results, ensuring that the sample truly reflects the characteristics of the uniform body within the coating. This improves the representativeness of the sample and solves the problem in existing technologies where manual scraping makes it difficult to guarantee the uniformity of scraping depth and range, resulting in insufficient sample representativeness.

[0016] 1. This utility model achieves the effect of adapting the device to different specifications of paint cans, barrels or substrate surfaces by adopting a detachable structure with a pin thread connection between the connecting cylinder and the insert cylinder in the scraping assembly, and the scraper connected to the rotating shaft inside the insert cylinder can rotate flexibly, thereby expanding the applicability of the entire device and solving the problem that traditional scrapers in the prior art are mostly fixed structures and difficult to adapt to different specifications of paint cans, barrels or substrate surfaces.

[0017] 2. This utility model features a detachable scraper. When the scraper wears out, simply pull out the pin, remove the insert from the connecting cylinder, and replace the scraper with a new one. This makes the operation simple and quick, effectively reducing the maintenance cost and difficulty of using the entire device, thereby improving work efficiency and solving the problem of difficult replacement of scraper after wear in the prior art. Attached Figure Description

[0018] 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.

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention. Figure 1 ;

[0020] Figure 2 This is an exploded view of the connecting tube and insert tube of this utility model.

[0021] Figure 3 This is a schematic diagram of the side section of the insert of this utility model;

[0022] Figure 4 for Figure 3 Enlarged structural diagram at point A in the middle;

[0023] Figure 5 This is a schematic diagram of the overall structure of the present invention. Figure 2 ;

[0024] Figure 6 for Figure 5 Enlarged structural diagram at point B.

[0025] In the diagram: 1. Sampling stage; 2. Moving frame; 3. Two-way lead screw; 4. Motor 1; 5. Electric actuator 1; 6. Clamping plate; 7. Bracket; 8. Connecting frame; 9. Cylinder 1; 10. Connecting cylinder; 11. Insert cylinder; 12. Insertion hole; 13. Pin; 14. Connecting block; 15. Scraper; 16. Push plate; 17. Sharp part; 18. Arc-shaped part; 19. Rotating cavity; 20. Rotating shaft; 21. Gear 1; 22. Gear 2; 23. Fixing frame; 24. Motor 2; 25. Cylinder 2; 26. Support plate; 27. Micro pump; 28. Sampling tube; 29. ​​Gear 3; 30. Rack; 31. Electric actuator 2. Detailed Implementation

[0026] 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 scope of protection of the present utility model.

[0027] The following is in conjunction with the appendix Figure 1-6 This application will be described in further detail.

[0028] This application discloses a paint scraping device for sampling water-based paints. (Refer to...) Figure 1 and Figure 6A water-based paint sampling and scraping device includes a sampling platform 1, a support 7 fixed to the top of the sampling platform 1, and a cylinder 9 and a cylinder 25 mounted on the top of the support 7. The telescopic end of cylinder 9 is equipped with a scraping component, and the telescopic end of cylinder 25 is equipped with a sampling component. In use, activating cylinder 9 adjusts the scraping component to a suitable height, allowing it to reach the surface of the paint can or bucket, preparing for subsequent scraping operations. The scraping component includes a connecting cylinder 10, fixed to the telescopic end of cylinder 9. An insert cylinder 11 is inserted into the connecting cylinder 10, and an insertion hole 12 is formed on the surface of the insert cylinder 11. A pin 13 is horizontally inserted into the surface of the connecting cylinder 10. One end of the pin 13 passes through the connecting cylinder 10 and is threaded into the insertion hole 12. A rotating shaft 20 is rotatably installed inside the connecting cylinder 11. A connecting block 14 is fixed to the bottom of the rotating shaft 20. A scraper 15 is fixed to the bottom of the connecting block 14. The scraper 15 is arc-shaped, and a push plate 16 is fixed to one end of the scraper 15. Under the push of the cylinder 9, the scraper 15 contacts the paint surface. During the scraping process, the inner arc surface of the arc-shaped scraper 15 can form a relatively closed space, which is conducive to the accumulation of scraped skin, hard film or impurity contamination layer. By rotating the rotating shaft 20, the connecting block is driven... The scraper 14 and scraper 15 move in a circular motion. The push plate 16 fixed at one end of the scraper 15 can assist in the scraping operation. During the rotation of the scraper 15, the push plate 16 can better push away the skin, hard film or impurity layer on the paint surface, thereby scraping off these non-uniform surface layers from the paint and exposing the uniform paint body inside. When facing paint cans or barrels of different sizes and when the scraper 15 is worn, the rotating pin 13 separates from the insertion hole 12, and then the insertion cylinder 11 is pulled out of the connecting cylinder 10. The scraper 15 of the appropriate size for the paint can or barrel is replaced to adapt to different sizes of paint cans or barrels. The device is designed to be adaptable to different sizes of paint tanks, barrels, or substrate surfaces, thus expanding its applicability. The replacement of the scraper 15 is simple and quick, effectively reducing maintenance costs and ease of use, thereby improving work efficiency. After removing the interfering layer from the paint surface, cylinder 25 is activated, moving the sampling component downwards to enter the paint inside where the interfering layer has been removed, obtaining a certain amount of paint sample. Finally, the telescopic end of cylinder 25 moves upwards, carrying the sampling component and sample out of the paint tank or barrel, completing the sampling process.

[0029] Reference Figure 3 and Figure 4The push plate 16 includes a sharp part 17 and an arc-shaped part 18. The arc-shaped part 18 is located above the scraper 15, and the sharp part 17 is located below the scraper 15. The sharp part 17 is perpendicular to the top of the sampling table 1. By setting the arc-shaped part 18 above the scraper 15, it can guide the scraped skin, hard film, or impurity contamination layer during the scraping process. The scraped material will be guided along the arc surface of the arc-shaped part 18 and concentrated on the inner arc surface of the scraper 15, so that the scraped material is collected more concentratedly in a specific area, which is convenient for subsequent cleaning and processing, and further improves the convenience of operation and work efficiency. The sharp part 17 is located below the scraper 15 and is perpendicular to the top of the sampling table 1. The sharp part 17 can cut the skin and hard film first, destroy their structure, and make them easier to be scraped off by the scraper 15, so that the entire scraping work can be carried out more smoothly and efficiently.

[0030] Reference Figure 3 The insert 11 has a rotating cavity 19. A rotating shaft 20 rotates between the inner walls of the rotating cavity 19. A gear 21 is fixed to the top of the rotating shaft 20, and a gear 22 rotates on the top wall of the rotating cavity 19. Gear 21 and gear 22 mesh. A fixing frame 23 is fixed to the top wall of the rotating cavity 19, and a motor 24 is fixed to the bottom of the fixing frame 23. The output end of the motor 24 is fixed to gear 22. By setting up the rotating cavity 19, the rotating cavity 19 provides installation space for gear 21, gear 22, and motor 24. When performing scraping work, the motor 24 is started to make the gears mesh. The rotation of gear 22 causes gear 21 and its shaft 20 to rotate synchronously under the meshing action of the gears. The shaft 20 can drive the connecting block 14 and scraper 15 at its bottom to rotate, which enables the scraper 15 and push plate 16 to scrape off the skin, hard film or impurity contamination layer on the coating surface. The scraping force will not be uneven due to operator fatigue or changes in force, ensuring the stability and consistency of the scraping effect. It avoids the interference of non-uniform surface layer on the test results, thereby ensuring that the sample can truly reflect the characteristics of the uniform body inside the coating and improve the representativeness of the sample.

[0031] Reference Figure 5 and Figure 6The sampling assembly includes a support plate 26, which is fixed to the telescopic end of cylinder 25. A micro pump 27 is fixed to the top of the support plate 26, and a sampling tube 28 is fixed to the bottom of the support plate 26. The output end of the micro pump 27 is connected to the sampling tube 28. The surface of the sampling tube 28 is marked with graduations. The support plate 26 serves to connect and support the micro pump 27 and the sampling tube 28, integrating them into a stable overall structure. Through the telescopic movement of cylinder 25, the support plate 26 can drive the micro pump 27 and the sampling tube 28 to move up and down synchronously, allowing the sampling tube 28 to move in different directions. The vertical positioning facilitates the entry of the sampling tube 28 into the paint tank or barrel for sampling. When sampling is required, the micro pump 27 is activated, generating negative pressure to draw paint from the paint tank or barrel into the sampling tube 28. After sampling is completed, the micro pump 27 can generate positive pressure to discharge the paint in the sampling tube 28 into a designated collection container, thus realizing automated sampling. The scale on the surface of the sampling tube 28 can accurately display the volume of paint in the sampling tube 28. Operators can accurately control the sampling amount by observing the scale according to actual needs, ensuring that the amount of each sample meets the requirements for testing or analysis.

[0032] Reference Figure 1 and Figure 5 The bottom of the bracket 7 is rotatably equipped with a connecting frame 8. Cylinder 1 9 and Cylinder 2 25 are symmetrically fixed at both ends of the bottom of the connecting frame 8. The top of the bracket 7 is rotatably equipped with a gear 3 29. The gear 3 29 passes through the top of the bracket 7 and is fixed to the connecting frame 8. The top of the bracket 7 is slidably equipped with a rack 30. The gear 3 29 meshes with the rack 30. The top of the bracket 7 is fixed with an electric push rod 2 31. The telescopic end of the electric push rod 2 31 is fixed to one side of the rack 30. By setting the electric push rod 2 31, the rack 30 slides on the top of the bracket 7. Under the meshing action, the gear 3 29 will drive the connecting shaft and the connecting frame 8 to rotate. After the scraper 15 driven by cylinder 1 9 completes the scraping of the interference layer on the paint surface, the positions of cylinder 1 9 and cylinder 2 25 can be alternated, so that the sampling tube 28 can be quickly moved to the appropriate position for sampling. There is no need for manual adjustment of the component position, which effectively improves the smoothness of the whole sampling process, shortens the whole sampling time, and increases the sampling quantity per unit time.

[0033] Reference Figure 1 and Figure 5The sampling platform 1 has two symmetrically arranged movable frames 2 on its top. The sampling platform 1 has a bidirectional lead screw 3 rotatably mounted on its bottom inner side. The two threads on the bidirectional lead screw 3 have opposite directions. A motor 4 is fixed on one side of the sampling platform 1. The output end of the motor 4 is fixed to the bidirectional lead screw 3. The bidirectional lead screw 3 is threadedly connected to both movable frames 2. There are gaps between the movable frames 2 and the top and bottom of the sampling platform 1. By setting the motor 4, the motor 4 is started to rotate the bidirectional lead screw 3. Under the guidance of the sampling platform 1, the two movable frames 2 can move closer or further away from each other, so as to achieve stable clamping of paint containers of different specifications. This ensures that the paint containers will not shake or shift during the subsequent scraping and sampling process, thus ensuring the stability of scraping and sampling. The gaps between the movable frames 2 and the top and bottom of the sampling platform 1 can reduce the frictional resistance when the movable frames 2 move, thereby improving the moving efficiency of the movable frames 2.

[0034] Reference Figure 1 and Figure 5 The top of the mobile frame 2 is fixed with an electric push rod 5, and the telescopic end of the electric push rod 5 is fixed with a clamping plate 6. By setting the clamping plate 6, the height of the clamping plate 6 can be adjusted under the pushing action of the electric push rod 5. After the mobile frame 2 initially clamps the barrel, the clamping plate 6 is adjusted to a suitable height according to the height of the barrel under the drive of the electric push rod 5. The clamping plate 6 moves synchronously with the mobile frame 2 to clamp the barrel a second time. The second clamping of the clamping plate 6 can play a compensating role, ensuring that the barrel remains stable throughout the entire scraping and sampling process. It can adapt to paint barrels of different heights and specifications, effectively improving the versatility and applicability of the entire device.

[0035] Working principle: When in use, place the paint bucket between the two moving frames 2, start the motor 4 to rotate the double-acting screw 3, and under the guidance of the sampling platform 1, move the two moving frames 2 closer to each other to clamp the paint bucket. Start the electric push rod 5 and adjust the height of the clamping plate 6 according to the height of the paint bucket, so that the clamping plate 6 moves synchronously with the moving frame 2 to clamp the paint bucket a second time, ensuring the stability of the paint bucket when scraping and sampling.

[0036] Select a scraper 15 of appropriate length according to the paint bucket. During scraping, start cylinder 19 to push scraper 15 into contact with the paint surface. Start motor 24 to rotate gear 22. Under the meshing action of the gears, gear 121 and its upper shaft 20 rotate synchronously. The shaft 20 can drive the connecting block 14 at its bottom and scraper 15 to rotate, enabling scraper 15 and push plate 16 to scrape off the skin, hard film or impurity contamination layer on the paint surface. After scraping is completed, start electric push rod 231 to slide rack 30 on top of bracket 7. Under the meshing action, gear 329 will drive connecting shaft and connecting frame. Rotation 8 alternates the positions of cylinder 1 9 and cylinder 2 25, allowing the sampling tube 28 to quickly move to the appropriate position for sampling. Cylinder 2 25 extends and immerses the sampling tube 28 into the paint bucket. The micro pump 27 starts and draws paint from the paint bucket into the sampling tube 28 by generating negative pressure. The scale on the surface of the sampling tube 28 can accurately display the volume of paint in the sampling tube 28. The operator can accurately control the sampling amount by observing the scale according to actual needs. After sampling, the micro pump 27 can discharge the paint in the sampling tube 28 into the designated collection container by generating positive pressure.

[0037] When dealing with paint cans or buckets of different sizes and when the scraper 15 is worn, rotate the pin 13 until it separates from the socket 12, then pull the insert 11 out of the connecting tube 10, replace the scraper 15 with one that is the right size for the paint can or bucket to be scraped, insert the new insert 11 into the connecting tube 10, and screw the pin 13 into the socket 12. This will allow you to quickly replace the scraper 15 to fit different sizes of paint buckets.

[0038] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A paint scraping device for sampling water-based paints, characterized in that: Includes a sampling table (1), the top of which is fixed with a bracket (7), the top of which is provided with a cylinder one (9) and a cylinder two (25), the telescopic end of the cylinder one (9) is provided with a scraping component, and the telescopic end of the cylinder two (25) is provided with a sampling component. The scraping assembly includes a connecting cylinder (10), which is fixed to the telescopic end of cylinder 1 (9). A plug cylinder (11) is inserted inside the connecting cylinder (10). A plug hole (12) is opened on the surface of the plug cylinder (11). A pin (13) is inserted laterally on the surface of the connecting cylinder (10). One end of the pin (13) passes through the connecting cylinder (10) and is threaded to the plug hole (12). A rotating shaft (20) is rotatably provided inside the plug cylinder (11). A connecting block (14) is fixed at the bottom end of the rotating shaft (20). A scraper (15) is fixed at the bottom of the connecting block (14). The scraper (15) is arc-shaped. A push plate (16) is fixed at one end of the scraper (15).

2. The paint scraping device for sampling water-based paint according to claim 1, characterized in that: The push plate (16) includes a sharp part (17) and an arc-shaped part (18). The arc-shaped part (18) is located above the scraper (15), and the sharp part (17) is located below the scraper (15). The sharp part (17) is perpendicular to the top of the sampling table (1).

3. The paint scraping device for sampling water-based paint according to claim 2, characterized in that: The insert (11) is provided with a rotating cavity (19). The rotating shaft (20) rotates between the inner walls of the rotating cavity (19). A gear one (21) is fixed at the top of the rotating shaft (20). A gear two (22) rotates on the top wall of the rotating cavity (19). The gear one (21) and the gear two (22) mesh. A fixing frame (23) is fixed on the top wall of the rotating cavity (19). A motor two (24) is fixed at the bottom of the fixing frame (23). The output end of the motor two (24) is fixed to the gear two (22).

4. The paint scraping device for sampling water-based paint according to claim 3, characterized in that: The sampling assembly includes a support plate (26), which is fixed to the telescopic end of cylinder two (25). A micro pump (27) is fixed to the top of the support plate (26), and a sampling tube (28) is fixed to the bottom of the support plate (26). The output end of the micro pump (27) is connected to the sampling tube (28), and the sampling tube (28) has a scale on its surface.

5. The paint scraping device for sampling water-based paint according to claim 4, characterized in that: The bottom of the bracket (7) is rotatably provided with a connecting frame (8). The first cylinder (9) and the second cylinder (25) are symmetrically fixed at both ends of the bottom of the connecting frame (8). The top of the bracket (7) is rotatably provided with a gear (29). The gear (29) passes through the top of the bracket (7) and is fixed to the connecting frame (8) through a connecting shaft. The top of the bracket (7) is slidably provided with a rack (30). The gear (29) meshes with the rack (30). The top of the bracket (7) is fixed with an electric push rod (31). The telescopic end of the electric push rod (31) is fixed to one side of the rack (30).

6. The paint scraping device for sampling water-based paint according to claim 5, characterized in that: The sampling platform (1) is symmetrically provided with two movable frames (2) on the top. The sampling platform (1) is rotatably provided with a bidirectional lead screw (3) on the inner side of the bottom. A motor (4) is fixed on one side of the sampling platform (1). The output end of the motor (4) is fixed to the bidirectional lead screw (3). The bidirectional lead screw (3) is threadedly connected to both movable frames (2).

7. The paint scraping device for sampling of the water-based paint according to claim 6, wherein: There are gaps between the top of the mobile frame (2) and the top of the sampling table (1).

8. A paint scraping device for sampling water-based paints according to claim 7, characterized in that: The top of the mobile frame (2) is fixed with an electric push rod (5), and the telescopic end of the electric push rod (5) is fixed with a clamp (6).

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