Multi-stage horizontal sand mill with filtering structure for UV paint

Abstract

The utility model discloses a UV (ultraviolet) paint multistage horizontal sand mill with a filtering structure, which comprises a rack, a grinding cylinder is fixed at the top of the rack, a motor is mounted above the left side of the rack, a stirring shaft is connected to the inner part of the grinding cylinder through a bearing, a feeding hole is fixed at the left side of the top of the grinding cylinder, and a discharging hole is formed in the right side of the top of the grinding cylinder. A discharging opening is fixedly formed in the right side of the grinding cylinder; and a first filter screen, a second filter screen and a third filter screen are mounted on the right side of the interior of the grinding cylinder through bolts. According to the multi-stage horizontal sand mill with the filtering structure for the UV paint, through vertical reciprocating movement of a piston plate in a liquid storage box, circulating circulation of cooling water in a cooling interlayer and the interior of the liquid storage box can be achieved, a grinding cylinder is cooled, and therefore the use cost of equipment is reduced, and through a first filter screen, a second filter screen and a third filter screen, the cooling effect is improved. Materials can be finely filtered, so that the product quality is improved.

Description

Technical Field

[0001] This utility model relates to the field of sand mill technology, specifically a multi-stage horizontal sand mill for UV paint with a filter structure. Background Technology

[0002] UV paint is a type of coating that can quickly cure into a film under ultraviolet light. It is environmentally friendly, efficient, and has excellent performance, and is widely used in industries such as furniture, electronics, and automobiles. The production process of UV paint requires a sand mill, a device that uses grinding media to efficiently grind and disperse solid particles in the UV paint. This meets the fine processing requirements of pigments and fillers in the UV paint production process, improving the quality and performance of the UV paint. However, existing ink sand mills lack a tiered filtration component, making it impossible to perform multi-stage grinding of the ink inside the sand mill as needed, thus affecting the grinding effect. To address this deficiency, existing technology (Chinese patent application number: 202420820931.5, authorized announcement date: 2024-12-31) discloses a multi-stage grinding horizontal oil mill with a filtration structure. The ink grinding mill is equipped with a first, second, third, and fourth filter screen. The first filter screen filters the ink after preliminary grinding, the second filter screen filters the ink after secondary grinding, the third filter screen filters the ink after tertiary grinding, and the fourth filter screen filters the ink after quaternary grinding. The ink is then guided into the fifth grinding space, completing multi-stage filtration and grinding of the ink, thereby improving the grinding effect of the device. The mill also includes a water tank, a first delivery pump, a water inlet pipe, and a semiconductor cooling chip. The semiconductor cooling chip absorbs heat from the water in the tank, and the first delivery pump draws in cold water from the tank and delivers it to the water inlet pipe. Under the suction of the first delivery pump, the water inlet pipe delivers the water to the cooling jacket, which absorbs heat from the interior of the fixed shell, preventing the ink inside the fixed shell from overheating and being damaged.

[0003] Existing technology uses a first delivery pump and inlet pipe to pump water from the cooling jacket into the water tank, and then uses a semiconductor cooling chip to absorb the heat from the water inside the tank. However, the first delivery pump is required to achieve water circulation, which increases the cost of the equipment. Furthermore, the lack of a multi-stage filtration structure makes it difficult to completely remove impurities, which remain in the product. This not only affects the appearance quality of the product but may also reduce the stability and weather resistance of the UV paint. Therefore, we propose a multi-stage horizontal sand mill for UV paint with a filtration structure, which can effectively solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a multi-stage horizontal sand mill for UV paint with a filtration structure, in order to solve the problems mentioned in the background art, which require the use of a first delivery pump to achieve water circulation, resulting in increased equipment operating costs, and the lack of a multi-stage filtration structure, making it difficult to completely remove impurities, which will remain in the product, affecting not only the appearance quality of the product, but also potentially reducing the stability and weather resistance of the UV paint.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a multi-stage horizontal sand mill for UV paint with a filtration structure, comprising a frame, a grinding cylinder fixed to the top of the frame, a motor installed on the upper left side of the frame, a stirring shaft connected to the internal bearing of the grinding cylinder, a feed inlet fixed to the left side of the top of the grinding cylinder, and a discharge outlet fixed to the right side of the grinding cylinder; further comprising: a first filter screen, a second filter screen, and a third filter screen bolted to the right side of the inside of the grinding cylinder, a cooling jacket provided on the inner wall of the grinding cylinder, a liquid storage box fixedly connected to the inside of the frame, a piston plate slidably connected to the inside of the liquid storage box, a transmission rod rotatably connected to the inside of the frame below the liquid storage box, and a sleeve fitted on the outer side of the left end of the transmission rod.

[0006] Preferably, the left end of the stirring shaft extends out of the left side of the frame, and the left end of the stirring shaft is fixedly connected to the output end of the motor.

[0007] Preferably, the cooling jacket contains cooling water, and the liquid storage box is connected to the cooling jacket via an inlet pipe and a drain pipe, respectively, and both the inlet pipe and the drain pipe are equipped with a one-way valve.

[0008] Preferably, heat dissipation fins are installed through the top of the liquid storage box at equal intervals, and a semiconductor cooling chip is embedded in the front of the liquid storage box.

[0009] Preferably, a ratchet assembly is installed at the connection position between the sleeve and the transmission rod, a turntable is fixed to the right end of the transmission rod, and the right side of the turntable and the bottom of the piston plate are hinged together by a connecting plate. The sleeve is rotatably connected inside the frame, and the sleeve and the outer side of the left end of the stirring shaft are connected by a pulley assembly.

[0010] Preferably, a movable rod is fixedly connected to the outer side of the left end of the stirring shaft, a dredging rod is provided on the upper left side of the inside of the grinding cylinder, and a slider is fixed to the left end of the dredging rod. A return spring is installed between the left side of the bottom of the slider and the inner wall of the grinding cylinder.

[0011] Preferably, the unblocking rod is located directly below the feed inlet, and the unblocking rod is slidably disposed inside the grinding cylinder via a slider, with the movable rod corresponding to the position of the unblocking rod.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: This multi-stage horizontal sand mill for UV paint with a filter structure adopts a novel structural design, the specific details of which are as follows:

[0013] (1) After being dispersed by the grinding box, the material will pass through the first filter screen, the second filter screen and the third filter screen in sequence on the way to the discharge port. This will enable fine filtration of the material, thereby ensuring that the final UV paint has higher fineness and uniformity and improving product quality.

[0014] (2) The cooling water inside the cooling jacket can remove the heat generated by grinding, keep the UV paint material and equipment within a suitable temperature range, prevent the material from deteriorating due to overheating, protect the various parts of the equipment, and extend the service life of the equipment. Furthermore, when the motor drives the stirring shaft to rotate in the opposite direction, the stirring shaft drives the sleeve to rotate in the opposite direction through the pulley assembly, so that the sleeve drives the transmission rod to rotate through the ratchet assembly, so that the turntable rotates and drives the piston plate to move downward inside the liquid storage box through the connecting plate, so that negative pressure is generated inside the liquid storage box, and the cooling water used inside the cooling jacket is sucked into the liquid storage box through the drain pipe. Then the cooled cooling water is returned to the cooling jacket through the liquid inlet pipe, thereby realizing circulating water cooling.

[0015] (3) The heat dissipation fins can transfer the heat in the cooling water to the outside and use the outside air to dissipate the heat. At the same time, the semiconductor cooling chip absorbs the heat in the cooling water inside the liquid storage box, so as to quickly cool the cooling water and facilitate the next cooling use.

[0016] (4) When the motor drives the stirring shaft to rotate, the stirring shaft drives the movable rod to rotate and squeezes the unblocking rod, which can make it move upward. When the movable rod stops squeezing the unblocking rod, the unblocking rod is reset under the action of the slider and the return spring. The above operation is repeated, so the unblocking rod moves up and down and unblocks the feed port, thereby preventing the material from accumulating and allowing the UV paint to enter the sand mill stably according to the set flow rate and speed. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the main cross-section of the present invention;

[0018] Figure 2 This is a three-dimensional structural diagram of the first filter screen, the second filter screen, and the third filter screen of this utility model.

[0019] Figure 3 This is a side view of the ratchet assembly of this utility model;

[0020] Figure 4 This is a three-dimensional structural diagram of the transmission rod, sleeve, and liquid storage box of this utility model;

[0021] Figure 5 This is a three-dimensional structural diagram of the movable rod and the unblocking rod of this utility model;

[0022] Figure 6 This utility model Figure 1 Enlarged structural diagram at point A in the middle;

[0023] Figure 7 This utility model Figure 1 Enlarged structural diagram at point B.

[0024] In the diagram: 1. Frame; 2. Grinding cylinder; 3. Stirring shaft; 4. Feed inlet; 5. Discharge outlet; 6. First filter screen; 7. Second filter screen; 8. Third filter screen; 9. Sleeve; 10. Transmission rod; 11. Ratchet assembly; 12. Liquid storage box; 13. Cooling jacket; 14. Liquid inlet pipe; 15. Liquid outlet pipe; 16. Turntable; 17. Connecting plate; 18. Piston plate; 19. Movable rod; 20. Unblocking rod; 21. Slider; 22. Heat dissipation fins; 23. Semiconductor cooling chip. Detailed Implementation

[0025] 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.

[0026] Please see Figures 1-7 The present invention provides the following technical solution: a multi-stage horizontal sand mill for UV paint with a filter structure;

[0027] Example 1: To address the problems in existing technologies where a first-stage pump is required to achieve water circulation, increasing equipment operating costs and lacking a multi-stage filtration structure, making it difficult to completely remove impurities that remain in the product, affecting not only its appearance but also potentially reducing the stability and weather resistance of UV paint, the following solution is disclosed. Please refer to the following for details. Figures 1-4 and Figure 6As shown, the device includes a frame 1, a grinding cylinder 2 fixed to the top of the frame 1, and a motor mounted on the upper left side of the frame 1. A stirring shaft 3 is connected to the internal bearing of the grinding cylinder 2, with its left end extending out from the left side of the frame 1 and fixedly connected to the output end of the motor. A feed inlet 4 is fixedly located on the left side of the top of the grinding cylinder 2, and a discharge outlet 5 is fixedly located on the right side of the grinding cylinder 2. The device also includes a first filter screen 6, a second filter screen 7, and a third filter screen 8 bolted to the right side of the inside of the grinding cylinder 2. A cooling jacket 13 is formed on the inner wall of the grinding cylinder 2, storing cooling water. A liquid storage box 12 and the cooling jacket 13 are connected by a liquid inlet pipe 1. 4 is connected to the drain pipe 15, and both the inlet pipe 14 and the drain pipe 15 are equipped with one-way valves. The inside of the frame 1 is fixedly connected to the liquid storage box 12, and the inside of the liquid storage box 12 is slidably connected to the piston plate 18. The inside of the frame 1 is rotatably connected to the transmission rod 10 below the liquid storage box 12, and the outer side of the left end of the transmission rod 10 is fitted with a sleeve 9. A ratchet assembly 11 is installed at the connection position between the sleeve 9 and the transmission rod 10. The right end of the transmission rod 10 is fixed to the turntable 16, and the right side of the turntable 16 and the bottom of the piston plate 18 are hinged together by a connecting plate 17. The sleeve 9 is rotatably connected inside the frame 1, and the sleeve 9 and the outer side of the left end of the stirring shaft 3 are connected by a belt pulley assembly.

[0028] In operation, the inlet 4 is connected to an external feed pump, and the outlet 5 is connected to an external delivery pump. The UV paint material, propelled by the feed pump, enters the grinding cylinder 2 of the sand mill through the inlet 4. Then, the motor drives the stirring shaft 3 to rotate at high speed in the forward direction (the transmission rod 10 does not rotate at this time). The stirring blades on the stirring shaft 3 push the grinding media (such as glass beads, ceramic beads, etc.) in complex motion within the cylinder. Simultaneously, the collisions, friction, impacts, and shearing between the grinding media and between the grinding media and the material particles continuously break down and refine the solid particles such as pigments and fillers in the UV paint, dispersing them evenly within the UV paint. The cooling water inside the cooling jacket 13 removes the heat generated during grinding, keeping the UV paint material and equipment within a suitable temperature range, preventing material deterioration due to overheating, protecting the various components of the equipment, and extending its service life. After grinding and dispersion, the material moves towards the outlet 5, passing sequentially through the first filter screen 6. The second filter screen 7 and the third filter screen 8 can finely filter the material, thereby ensuring that the final output UV paint has higher fineness and uniformity, improving product quality. Finally, through an external conveying pump, the qualified UV paint material after filtration is discharged from the sand mill through the discharge port 5 and enters the subsequent storage or processing stage. Then, the motor drives the stirring shaft 3 to rotate in the opposite direction. The stirring shaft 3 drives the sleeve 9 to rotate in the opposite direction through the pulley assembly. The sleeve 9 drives the transmission rod 10 to rotate through the ratchet assembly 11, causing the turntable 16 to rotate and drive the piston plate 18 to move downward inside the liquid storage box 12 through the connecting plate 17. This creates a negative pressure inside the liquid storage box 12 and draws the used cooling water in the cooling jacket 13 into the liquid storage box 12 through the drain pipe 15. Then, when the piston plate 18 moves upward inside the liquid storage box 12, it can push the cooled water back into the cooling jacket 13 through the liquid inlet pipe 14, thereby realizing circulating water cooling. The one-way valve can prevent the liquid from flowing turbulently.

[0029] Example 2: Unlike Example 1, this example utilizes the heat dissipation fins 22 and the semiconductor cooling chip 23 to rapidly cool the used cooling water, ensuring its continued use for the next cooling cycle. See details... Figure 1 and Figure 4 As shown, heat dissipation fins 22 are installed through the top of the liquid storage box 12 at equal intervals, and a semiconductor cooling chip 23 is embedded in the front of the liquid storage box 12.

[0030] When the cooling water that has absorbed heat enters the liquid storage box 12, the heat in the cooling water can be transferred to the outside through the heat dissipation fins 22, and the outside air can be used to dissipate heat. At the same time, the semiconductor cooling chip 23 absorbs the heat in the cooling water inside the liquid storage box 12, thereby quickly cooling the cooling water for the next cooling use.

[0031] Example 3: Unlike Example 2, this example utilizes the reciprocating movement of the unblocking rod 20 to unclog the feed inlet 4, thereby preventing material accumulation. See details... Figure 1 , Figure 5 and Figure 7 As shown, a movable rod 19 is fixedly connected to the outer side of the left end of the stirring shaft 3. A dredging rod 20 is provided on the upper left side inside the grinding cylinder 2, and a slider 21 is fixed to the left end of the dredging rod 20. A return spring is installed between the left side of the bottom of the slider 21 and the inner wall of the grinding cylinder 2. The dredging rod 20 is located directly below the feed inlet 4, and the dredging rod 20 is slidably disposed inside the grinding cylinder 2 through the slider 21. The movable rod 19 and the dredging rod 20 are positioned correspondingly.

[0032] When the motor drives the stirring shaft 3 to rotate, the stirring shaft 3 drives the movable rod 19 to rotate and squeeze the unblocking rod 20, which can cause it to move upward. When the movable rod 19 stops squeezing the unblocking rod 20, the unblocking rod 20 is reset under the action of the slider 21 and the return spring. The above operation is repeated, so the unblocking rod 20 moves up and down and unblocks the feed port 4, thereby preventing material accumulation and allowing the UV paint to enter the sand mill stably according to the set flow rate and speed.

[0033] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0034] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A multi-stage horizontal sand mill for UV paint with a filtration structure, comprising a frame (1), a grinding cylinder (2) fixed to the top of the frame (1), a motor mounted on the upper left side of the frame (1), a stirring shaft (3) connected to the internal bearing of the grinding cylinder (2), a feed inlet (4) fixedly opened on the left side of the top of the grinding cylinder (2), and a discharge outlet (5) fixedly opened on the right side of the grinding cylinder (2); characterized in that, Also includes: The grinding cylinder (2) is bolted with a first filter screen (6), a second filter screen (7) and a third filter screen (8) on the right side. The grinding cylinder (2) has a cooling jacket (13) on its inner wall. The frame (1) is fixedly connected to a liquid storage box (12). The liquid storage box (12) is slidably connected to a piston plate (18). The frame (1) is rotatably connected to a transmission rod (10) located below the liquid storage box (12). A sleeve (9) is fitted on the outer side of the left end of the transmission rod (10).

2. The multi-stage horizontal sand mill for UV paint with a filtration structure according to claim 1, characterized in that: The left end of the stirring shaft (3) extends out of the left side of the frame (1), and the left end of the stirring shaft (3) is fixedly connected to the output end of the motor.

3. A multi-stage horizontal sand mill for UV paint with a filtration structure according to claim 1, characterized in that: The cooling jacket (13) contains cooling water. The liquid storage box (12) is connected to the cooling jacket (13) through the liquid inlet pipe (14) and the liquid outlet pipe (15), respectively. Both the liquid inlet pipe (14) and the liquid outlet pipe (15) are equipped with one-way valves.

4. A multi-stage horizontal sand mill for UV paint with a filtration structure according to claim 1, characterized in that: The top of the liquid storage box (12) is provided with heat dissipation fins (22) installed at equal intervals, and a semiconductor cooling chip (23) is embedded in the front of the liquid storage box (12).

5. A multi-stage horizontal sand mill for UV paint with a filtration structure according to claim 1, characterized in that: A ratchet assembly (11) is installed at the connection position between the sleeve (9) and the transmission rod (10). A turntable (16) is fixed at the right end of the transmission rod (10), and the right side of the turntable (16) and the bottom of the piston plate (18) are hinged together by a connecting plate (17). The sleeve (9) is rotatably connected inside the frame (1), and the sleeve (9) and the outer side of the left end of the stirring shaft (3) are connected by a belt pulley assembly.

6. A multi-stage horizontal sand mill for UV paint with a filtration structure according to claim 1, characterized in that: A movable rod (19) is fixedly connected to the outer side of the left end of the stirring shaft (3). A dredging rod (20) is provided on the upper left side inside the grinding cylinder (2). A slider (21) is fixed to the left end of the dredging rod (20). A reset spring is installed between the left side of the bottom of the slider (21) and the inner wall of the grinding cylinder (2).

7. A multi-stage horizontal sand mill for UV paint with a filtration structure according to claim 6, characterized in that: The unblocking rod (20) is located directly below the feed inlet (4), and the unblocking rod (20) is slidably disposed inside the grinding cylinder (2) via the slider (21). The movable rod (19) corresponds to the position of the unblocking rod (20).

Images