Anti-sticking device for inner wall of coating mixing kettle

By using a servo motor-driven screw and internal threaded slide plate system, combined with an arc-shaped scraper and a side scraper, the problem of inconvenient cleaning of the paint mixing tank is solved, achieving full mixing of the paint and effective scraping of the paint off the tank wall, reducing paint residue and waste.

CN224252689UActive Publication Date: 2026-05-19QINGDAO YUEYANG ENVIRONMENTAL PROTECTION MATERIALS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
QINGDAO YUEYANG ENVIRONMENTAL PROTECTION MATERIALS CO LTD
Filing Date
2025-05-30
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

The existing paint mixing tank is difficult to clean due to the increased weight of the stirring column, and the scraper installation makes it difficult to effectively remove paint adhering to the tank wall.

Method used

The system employs a servo motor-driven screw and internal threaded slide plate system, combined with an arc-shaped scraper and a side scraper, to achieve the movement of the bottom of the vessel and the scraping function. The servo motor drives the stirring blade, side scraper, and arc-shaped scraper to rotate, thereby achieving full mixing of the coating and effective scraping of the coating off the vessel wall.

Benefits of technology

It improves the ease of cleaning the mixing vessel, reduces paint residue, and lowers the difficulty of cleaning and paint waste.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224252689U_ABST
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Abstract

The utility model relates to the technical field of mixing kettles, in particular to an anti-sticking device for the inner wall of a coating mixing kettle. The anti-sticking device for the inner wall of the coating mixing kettle comprises the mixing kettle, and a kettle bottom is arranged at the bottom of the mixing kettle; a second servo motor drives a stirring blade, a side scraping plate and an arc-shaped scraping plate to rotate, a coating in the mixing kettle is stirred and mixed through the stirring blade, the coating adhered to the inner wall of the mixing kettle is scraped through the side scraping plate, and the coating at the top of the kettle bottom is scraped through the arc-shaped scraping plate; the coating in the mixing kettle can be fully mixed, and when the coating is discharged, the side scraping plate can scrape the coating adhered to the inner wall of the mixing kettle, and meanwhile, the arc-shaped scraping plate can push the coating adhered to the top of the kettle bottom and move outwards along the arc-shaped surface of the arc-shaped scraping plate, so that the coating can be fully mixed. And the paint is discharged through a discharge valve until entering a discharge port at the bottom of the kettle, so that the amount of residual paint in the mixing kettle is reduced.
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Description

Technical Field

[0001] This utility model relates to the field of mixing tank technology, specifically an anti-sticking device for the inner wall of a coating mixing tank. Background Technology

[0002] Because coatings have a certain degree of viscosity, they tend to stick to the inside of the mixing vessel when manufacturing coatings. Currently, to prevent this, scrapers are installed on the stirring column inside the mixing vessel to scrape off the sticky coating. However, the installation of the scrapers increases the weight of the stirring column, so when cleaning the stirring column is required, workers need to expend a lot of effort to lift the stirring column out of the mixing vessel, thus reducing the ease of cleaning the mixing vessel. To address the above issues, a technological innovation is proposed based on the existing anti-sticking device for the inner wall of the coating mixing vessel. Utility Model Content

[0003] The purpose of this invention is to provide an anti-sticking device for the inner wall of a coating mixing tank to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a coating mixing tank inner wall anti-sticking device, comprising:

[0005] A mixing vessel has a vessel bottom at its bottom and a rotating shaft at its top. Arc-shaped scrapers are evenly arranged on the bottom of the outer wall of the rotating shaft, and side scrapers are arranged on the top of the arc-shaped scrapers. Stirring blades are evenly arranged between the side scrapers and the rotating shaft. A set of internally threaded sliding plates is arranged on both the left and right sides of the vessel bottom. A screw is threaded into each of the internally threaded sliding plates. A synchronous pulley is arranged at the bottom of the screw. Synchronous belts mesh with the outer sides of the two sets of synchronous pulleys. A first servo motor is arranged on the top of the screw located on the left side of the vessel bottom.

[0006] Preferably, a set of support columns is provided on both the left and right sides of the mixing vessel, a base is provided at the bottom of the two sets of support columns, a set of sliding grooves is provided on the opposite sides of the two sets of support columns, and a groove is provided at the bottom of the base.

[0007] Preferably, the first servo motor is located at the top of the support column on the left side of the mixing vessel, the screw is rotatably disposed in the slide groove, the internally threaded slide plate is slidably disposed in the slide groove, the synchronous pulley and the synchronous belt are located in the groove, the output end of the first servo motor passes through the top of the support column and is connected to the screw, and the bottom of the screw passes through the top of the base and is connected to the synchronous pulley.

[0008] Preferably, a second servo motor is provided at the bottom of the vessel bottom, and a through hole is provided at the bottom of the vessel bottom. The output end of the second servo motor is connected to the rotating shaft through the through hole, and the base is located below the second servo motor.

[0009] Preferably, the bottom of the arc-shaped scraper is in contact with the top of the bottom of the vessel, a discharge port is provided through the bottom of the bottom of the vessel, a discharge valve is connected to the bottom of the discharge port, the arc-shaped scraper corresponds to the discharge port, and the outer wall of the side scraper is in contact with the inner wall of the mixing vessel.

[0010] Preferably, the bottom of the vessel bottom is provided with uniformly distributed mounting holes, the bottom of the mixing vessel is provided with uniformly distributed threaded holes, bolts are provided in the mounting holes and are screwed into the threaded holes, a first sealing gasket is placed between the mixing vessel and the vessel bottom, and a second sealing gasket is placed between the output end of the second servo motor and the through hole of the vessel bottom.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] This invention uses a first servo motor to drive a screw and an internally threaded sliding plate to fix the bottom of the mixing vessel. Then, bolts are used to further fix the bottom and the mixing vessel, ensuring the connection strength between the mixing vessel and the bottom, thereby improving the reliability of the device. After unscrewing the bolts, the bottom of the vessel can be moved downward by the first servo motor, which in turn moves the rotating shaft, stirring blades, side scrapers, and arc-shaped scrapers located at the top of the bottom of the vessel downward from the mixing vessel. This allows workers to easily clean the rotating shaft, stirring blades, side scrapers, and arc-shaped scrapers.

[0013] The second servo motor drives the stirring blades, side scrapers, and arc-shaped scrapers to rotate. The stirring blades stir and mix the coating in the mixing vessel, the side scrapers scrape off the coating adhering to the inner wall of the mixing vessel, and the arc-shaped scrapers scrape off the coating at the bottom and top of the vessel. This ensures that the coating in the mixing vessel is fully mixed. When discharging the coating, the side scrapers scrape off the coating adhering to the inner wall of the mixing vessel, while the arc-shaped scrapers push the coating adhering to the bottom and top of the vessel outward along the arc-shaped surface until it enters the discharge port at the bottom of the vessel and is discharged through the discharge valve. This reduces the amount of coating remaining in the mixing vessel and reduces coating waste. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of an anti-sticking device for the inner wall of a coating mixing tank according to the present invention;

[0015] Figure 2 This is a front sectional view of a coating mixing tank inner wall anti-sticking device according to the present invention;

[0016] Figure 3 This is a top cross-sectional view of the anti-sticking device for the inner wall of a coating mixing tank according to this utility model.

[0017] In the diagram: 1. Mixing vessel; 11. Support column; 12. First servo motor; 13. Bottom of the vessel; 14. Discharge valve; 15. Bolt; 16. Base; 17. Screw; 18. Internal threaded slide plate; 19. Synchronous pulley; 2. Synchronous belt; 21. Second servo motor; 22. Rotary shaft; 23. Stirring blade; 24. Side scraper; 25. Arc-shaped scraper; 3. First sealing gasket; 31. Second sealing gasket. Detailed Implementation

[0018] 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.

[0019] Please see Figures 1-3A coating mixing tank inner wall anti-sticking device includes a mixing tank 1. A tank bottom 13 is placed at the bottom of the mixing tank 1. A rotating shaft 22 is placed at the top of the tank bottom 13. Arc-shaped scrapers 25 are uniformly fixed to the bottom of the outer side wall of the rotating shaft 22. A side scraper 24 is fixed to the top of the arc-shaped scraper 25. Stirring blades 23 are uniformly fixed between the side scraper 24 and the rotating shaft 22. A set of internally threaded sliding plates 18 are fixedly installed on both the left and right sides of the tank bottom 13. A screw 17 is internally threaded into the sliding plate 18. A synchronous pulley 19 is fixedly installed at the bottom of the screw 17. A synchronous belt 2 meshes with the outer sides of the two sets of synchronous pulleys 19. A first servo motor 12 is fixedly installed at the top of the screw 17 located on the left side of the tank bottom 13, driving the screw 17 to rotate. The screw 17 drives another set of screws 17 to rotate via the synchronous pulley 19 and synchronous belt 2. This causes the two sets of screws 17 to drive the two sets of internal threaded slide plates 18 to move downwards. In turn, the internal threaded slide plates 18 drive the bottom of the vessel 13 to move downwards, thereby causing the rotating shaft 22, stirring blade 23, side scraper 24, and arc-shaped scraper 25 located at the top of the bottom of the vessel 13 to move downwards and out of the mixing vessel 1. This allows workers to easily clean the rotating shaft 22, stirring blade 23, side scraper 24, and arc-shaped scraper 25. A set of support columns 11 is fixedly installed on both the left and right sides of the mixing vessel 1. A base 16 is fixedly installed at the bottom of the two sets of support columns 11. A set of sliding grooves is opened on the opposite sides of the two sets of support columns 11. A groove is opened at the bottom of the base 16. The first servo... The first servo motor 12 is fixedly mounted on the top of the support column 11 on the left side of the mixing vessel 1. The screw 17 is rotatably mounted in the slide groove, and the internally threaded slide plate 18 is slidably mounted in the slide groove. The synchronous pulley 19 and the synchronous belt 2 are located in the groove. The output end of the first servo motor 12 passes through the top of the support column 11 and is connected to the screw 17. The bottom of the screw 17 passes through the top of the base 16 and is connected to the synchronous pulley 19. The bottom of the vessel bottom 13 is fixedly mounted with a second servo motor 21. A through hole is opened through the bottom of the vessel bottom 13, and the output end of the second servo motor 21 passes through the through hole and is connected to the rotating shaft 22. The base 16 is located below the second servo motor 21. The bottom of the arc-shaped scraper 25 is in contact with the top of the vessel bottom 13. A discharge port is opened through the bottom of the vessel bottom 13. A discharge valve 14 is connected to the bottom of the feed inlet. An arc-shaped scraper 25 corresponds to the discharge inlet. The second servo motor 21 drives the rotating shaft 22 to rotate counterclockwise. When the rotating shaft 22 rotates, it drives the stirring blade 23, the side scraper 24, and the arc-shaped scraper 25 to rotate as well. The stirring blade 23 stirs and mixes the coating in the mixing vessel 1. The side scraper 24 scrapes off the coating adhering to the inner wall of the mixing vessel 1, and the arc-shaped scraper 25 scrapes off the coating on the top of the bottom 13 of the vessel. This ensures that the coating in the mixing vessel 1 is fully mixed. After the coating is mixed, the discharge valve 14 is opened to discharge the coating. At the same time, when the arc-shaped scraper 25 rotates, the coating adhering to the top of the bottom 13 of the vessel is pushed by the arc-shaped scraper 25.The scraper moves outward along the arc-shaped surface of the scraper 25 until it enters the discharge port of the bottom 13 and is discharged through the discharge valve 14, thereby reducing the amount of residual paint in the mixing vessel 1 and reducing paint waste. The outer side wall of the side scraper 24 is in contact with the inner side wall of the mixing vessel 1. The bottom of the bottom 13 has uniformly through-holes for mounting, and the bottom of the mixing vessel 1 has uniformly through-holes for threaded holes. Bolts 15 are rotatably installed in the mounting holes and screwed into the threaded holes. A first sealing gasket 3 is placed between the mixing vessel 1 and the bottom 13. A second sealing gasket 31 is placed between the output end of the second servo motor 21 and the through hole of the bottom 13. The bottom 13 is fixed to the bottom of the mixing vessel 1 by the bolts 15. The first sealing gasket 3 seals the connection gap between the mixing vessel 1 and the bottom 13, and the second sealing gasket 31 seals the connection gap between the second servo motor 21 and the bottom 13, thereby preventing paint leakage.

[0020] Working principle: The bottom 13 is fixed to the bottom of the mixing vessel 1 by bolts 15. The connection gap between the mixing vessel 1 and the bottom 13 is sealed by the first sealing gasket 3, and the connection gap between the second servo motor 21 and the bottom 13 is sealed by the second sealing gasket 31 to prevent paint leakage. The second servo motor 21 drives the rotating shaft 22 to rotate counterclockwise. When the rotating shaft 22 rotates, it drives the stirring blade 23, the side scraper 24 and the arc-shaped scraper 25 to rotate. The stirring blade 23 stirs and mixes the paint in the mixing vessel 1, and the side scraper 24 stirs and mixes the paint. The coating adhering to the inner wall of the mixing vessel 1 is scraped off. The coating on the top of the bottom 13 of the vessel is scraped off by the arc-shaped scraper 25, so that the coating in the mixing vessel 1 can be fully mixed. After the coating is mixed, the discharge valve 14 is opened to discharge the coating. At the same time, when the arc-shaped scraper 25 is rotated, the coating adhering to the top of the bottom 13 of the vessel is pushed by the arc-shaped scraper 25 and moves outward along the arc surface of the arc-shaped scraper 25 until it enters the discharge port of the bottom 13 of the vessel and is discharged through the discharge valve 14, thereby reducing the amount of coating remaining in the mixing vessel 1 and reducing coating waste.

[0021] After unscrewing the bolt 15, the first servo motor 12 drives the screw 17 to rotate. The screw 17 drives another set of screws 17 to rotate through the synchronous pulley 19 and the synchronous belt 2. This causes the two sets of screws 17 to drive the two sets of internal thread slide plates 18 to move downwards. This causes the bottom of the vessel 13 to move downwards through the internal thread slide plates 18. In turn, this causes the rotating shaft 22, stirring blade 23, side scraper 24 and arc scraper 25 located at the top of the bottom of the vessel 13 to move downwards and out of the mixing vessel 1. This allows workers to easily clean the rotating shaft 22, stirring blade 23, side scraper 24 and arc scraper 25.

Claims

1. A coating mixing tank inner wall anti-sticking device, characterized in that, include: A mixing vessel (1) has a vessel bottom (13) at its bottom and a rotating shaft (22) at its top. An arc-shaped scraper (25) is evenly arranged on the bottom of the outer wall of the rotating shaft (22). A side scraper (24) is arranged on the top of the arc-shaped scraper (25). A stirring blade (23) is evenly arranged between the side scraper (24) and the rotating shaft (22). A set of internally threaded sliding plates (18) are arranged on both the left and right sides of the vessel bottom (13). A screw (17) is screwed into the internally threaded sliding plate (18). A synchronous pulley (19) is arranged at the bottom of the screw (17). A synchronous belt (2) meshes with the outer sides of the two sets of synchronous pulleys (19). A first servo motor (12) is arranged on the top of the screw (17) located on the left side of the vessel bottom (13).

2. The anti-sticking device for the inner wall of a coating mixing tank according to claim 1, characterized in that: The mixing vessel (1) is provided with a set of support columns (11) on both the left and right sides. The bottom of the two sets of support columns (11) is provided with a base (16). The opposite sides of the two sets of support columns (11) are provided with a set of sliding grooves. The bottom of the base (16) is provided with a groove.

3. The anti-sticking device for the inner wall of a coating mixing tank according to claim 2, characterized in that: The first servo motor (12) is located on the top of the support column (11) on the left side of the mixing vessel (1). The screw (17) is rotatably mounted in the slide groove. The internal thread slide plate (18) is slidably mounted in the slide groove. The synchronous pulley (19) and the synchronous belt (2) are located in the groove. The output end of the first servo motor (12) passes through the top of the support column (11) and is connected to the screw (17). The bottom of the screw (17) passes through the top of the base (16) and is connected to the synchronous pulley (19).

4. The anti-sticking device for the inner wall of a coating mixing tank according to claim 2, characterized in that: The bottom of the vessel bottom (13) is provided with a second servo motor (21). A through hole is provided through the bottom of the vessel bottom (13). The output end of the second servo motor (21) is connected to the rotating shaft (22) through the through hole. The base (16) is located below the second servo motor (21).

5. The anti-sticking device for the inner wall of a coating mixing tank according to claim 1, characterized in that: The bottom of the arc-shaped scraper (25) is in contact with the top of the bottom of the vessel (13). The bottom of the bottom of the vessel (13) is provided with a discharge port. The bottom of the discharge port is connected to a discharge valve (14). The arc-shaped scraper (25) corresponds to the discharge port. The outer wall of the side scraper (24) is in contact with the inner wall of the mixing vessel (1).

6. The anti-sticking device for the inner wall of a coating mixing tank according to claim 4, characterized in that: The bottom of the vessel bottom (13) is uniformly provided with mounting holes, and the bottom of the mixing vessel (1) is uniformly provided with threaded holes. A bolt (15) is provided in the mounting hole and the bolt (15) is screwed into the threaded hole. A first sealing gasket (3) is placed between the mixing vessel (1) and the vessel bottom (13), and a second sealing gasket (31) is placed between the output end of the second servo motor (21) and the through hole of the vessel bottom (13).