An automated production line and method for water-based coatings

Abstract

This invention discloses an automated production line and method for water-based coatings, relating to the field of water-based coating technology. The method includes: a mixing chamber; a motor mounting plate fixedly installed on the left outer wall of the mixing chamber; a drive motor mounted on the motor mounting plate; the output shaft of the drive motor extending movably into the mixing chamber and fixedly connected to a screw conveyor; a stirring assembly on the right outer wall of the mixing chamber; a liquid storage tank mounted on top of the stirring assembly; and a coating pretreatment assembly mounted on top of the mixing chamber. Coating particles are fed into the coating pretreatment assembly for grinding and pretreatment. Liquid from the liquid storage tank is transported to the stirring assembly via a water pump and conduit. The coating powder and liquid in the stirring assembly are then thoroughly stirred to form the desired water-based coating. The coating pretreatment assembly ensures that the ground raw materials are further and more thoroughly mixed with water, guaranteeing coating quality, improving product quality, and increasing production efficiency.

Description

Technical Field

[0001] This invention relates to the field of water-based coatings technology, specifically to an automated production line and method for water-based coatings. Background Technology

[0002] Water-based coatings refer to coatings that use water as a solvent or dispersion medium. Water-based coatings include water-soluble coatings, water-dilutable coatings, and water-dispersible coatings. During the production and processing of water-based coatings, a series of treatments need to be carried out on the production line. This includes the continuous reaction and processing of water-based coatings on the production line according to the formula and the order of raw material addition. Generally, it is necessary to mix and stir the coating particles of various proportions. During the coating production process, the raw material particles used to produce coatings are relatively large and need to be ground.

[0003] In the existing patent CN201921592114-Novel Fully Automatic Production Line for Water-based Coatings, a conveyor line is included. Support legs are fixedly connected at equal intervals on the bottom surface of the conveyor line. A support column is fixedly connected to the left side of the conveyor line. A liquid tank is fixedly connected to the right side of the support column. A liquid pipe is fixedly connected to the bottom surface of the liquid tank. A bucket elevator is fixedly connected to the upper surface of the support column. A batching conveyor is fixedly connected to the right side of the support column.

[0004] The aforementioned patents do not include a dedicated device for grinding coating particles, resulting in insufficient reaction during the production of water-based coatings, leading to unstable product quality and reduced production efficiency. Therefore, we provide an automated production line and method for water-based coatings to solve these problems. Summary of the Invention

[0005] The purpose of this invention is to provide an automated production line and method for water-based coatings to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: comprising: a mixing chamber, a motor fixing plate fixedly installed on the left outer wall of the mixing chamber, a drive motor installed on the motor fixing plate, the output shaft of the drive motor extending movably into the mixing chamber and fixedly connected to the spiral conveying rod, a stirring assembly provided on the right outer wall of the mixing chamber, a liquid storage tank installed on the top of the stirring assembly, and a coating pretreatment assembly installed on the top of the mixing chamber.

[0007] Preferably, the liquid storage tank and the stirring assembly are connected by several conduits, and a water pump is installed between the conduits and the liquid storage tank.

[0008] Preferably, the coating pretreatment component includes: a pretreatment box, which is fixedly connected to a mixing box, and a through hole is provided between the pretreatment box and the mixing box. A limiting collar is fixedly connected to the outer wall of the pretreatment box, and a second rotating rod is movably disposed within the limiting collar. A bevel gear three and a bevel gear two are respectively fixedly sleeved at the upper and lower ends of the second rotating rod.

[0009] Preferably, a synchronous pulley 1 is fixedly sleeved on the output shaft of the drive motor, a synchronous pulley 2 and a bevel gear 1 are fixedly sleeved at one end of the first rotating rod extending outside the pretreatment box, the synchronous pulley 1 and the synchronous pulley 2 are connected by a synchronous belt drive, the bevel gear 1 and the bevel gear 2 mesh with each other, and a bevel gear 4 is fixedly sleeved at one end of the reciprocating screw extending outside the pretreatment box, the bevel gear 3 and the bevel gear 4 mesh with each other.

[0010] Preferably, the top of the pretreatment box is symmetrically provided with two sets of paint inlets, the two sets of guide blocks are symmetrically fixedly connected to the left and right inner walls of the pretreatment box, the pre-crushing block is located between the two sets of guide blocks, and the pre-crushing block is connected to the top of the inner wall of the pretreatment box through a drive cylinder. Each of the two sets of guide blocks and the pre-crushing block has several crushing teeth on the side that is close to each other.

[0011] Preferably, the reciprocating screw is rotatably connected to the inner wall of the pretreatment box, and two sets of crushing clamps are symmetrically sleeved on the reciprocating screw. One end of the first connecting rod is rotatably connected to the crushing clamp, and the other end of the first connecting rod is rotatably connected to the grinding body. The grinding body is slidably connected to the inner wall of the pretreatment box. The second drive motor is installed at the rear end of the outer wall of the pretreatment box, and the output shaft of the second drive motor extends movably into the grinding body. The grinding ring is fixedly sleeved on the output shaft of the second drive motor. A discharge port is opened at the bottom of the grinding ring. Two sets of fixing blocks are symmetrically fixedly connected to the left and right inner walls of the pretreatment box, and the grinding body and the fixing blocks are connected by a buffer spring.

[0012] Preferably, the first rotating rod is rotatably connected to the inner wall of the pretreatment box, the screen is movably connected to the inner wall of the pretreatment box, two sets of eccentric wheels are symmetrically provided on the outer wall of the first rotating rod, and the screen is slidably connected to the eccentric wheels through the support rod, and the outer wall of the pretreatment box is provided with a discharge port.

[0013] Preferably, the mixing assembly includes a mixing chamber and a drive chamber, the drive chamber being fixedly connected to the outer wall of the rear end of the mixing chamber, the mixing chamber being provided with several sets of mixing blades, and a paint outlet being provided at the bottom of the mixing chamber.

[0014] Preferably, the drive motor is fixedly connected to the rear end of the inner wall of the drive housing, the drive ring is movably connected to the inner wall of the drive housing, several support rods are arranged around the output shaft of the drive motor, one end of the support rod is fixedly connected to the output shaft of the drive motor, and the other end of the support rod is fixedly connected to the drive ring. A half-gear is fixedly sleeved on the output shaft of the drive motor, and several meshing tooth blocks are provided on the inner wall of the drive ring. One end of the third rotating rod is rotatably connected to the rear end of the inner wall of the drive housing, and the other end of the third rotating rod extends movably into the mixing tank. A drive gear is fixedly sleeved on the outer wall of the third rotating rod, and the drive gear meshes with the half-gear and several meshing tooth blocks respectively. A rotating disk is fixedly connected to the end of the third rotating rod that extends into the mixing tank, and several sets of stirring blades are fixedly provided at the front end of the rotating disk.

[0015] A method for operating an automated water-based coating production line includes the following steps:

[0016] S1: Start the drive motor to feed the paint particles into the paint pretreatment component for grinding and pretreatment;

[0017] S2: The ground paint powder enters the mixing chamber and is conveyed to the mixing assembly by a screw conveyor.

[0018] S3: The liquid in the storage tank is transported to the stirring assembly through a water pump and conduit;

[0019] S4: Thoroughly mix the paint powder and liquid in the mixing unit to form the desired water-based paint.

[0020] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0021] The drive motor is started, and paint particles are fed into the paint pretreatment component for grinding and pretreatment. The ground paint powder then enters the mixing chamber and is conveyed to the agitator. Liquid from the storage tank is transported to the agitator via a water pump and conduit. The paint powder and liquid in the agitator are then thoroughly mixed to form the desired water-based paint. The paint pretreatment component ensures that the ground raw materials are further and more thoroughly mixed with water, guaranteeing paint quality, improving product quality, and increasing production efficiency. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of the present invention;

[0023] Figure 2 This is a schematic diagram of the coating pretreatment component structure in this invention;

[0024] Figure 3 This is a schematic diagram of the bottom view of the stirring assembly in this invention;

[0025] Figure 4 This is a schematic diagram of the driving principle of the stirring component in this invention.

[0026] In the diagram: 1. Mixing chamber; 2. Screw conveyor; 3. Motor mounting plate; 4. Drive motor; 5. Stirring assembly; 6. Conduit; 7. Water pump; 8. Storage tank; 9. Synchronous pulley one; 10. Synchronous belt; 11. Synchronous pulley two; 12. First rotating rod; 13. Bevel gear one; 14. Bevel gear two; 15. Second rotating rod; 16. Limiting collar; 17. Bevel gear three; 18. Bevel gear four; 19. Pretreatment chamber; 20. Through hole; 21. Reciprocating screw; 22. Paint inlet; 23. Drive cylinder; 24. Pre-crushed block; 25. Crushed block. 26. Crushing teeth; 27. Guide block; 28. Crushing clamp; 29. ​​First connecting rod; 30. Grinding body; 31. Drive motor II; 32. Grinding ring; 33. Buffer spring; 34. Fixing block; 35. Discharge port I; 36. Screen; 37. Discharge port II; 38. Eccentric wheel; 39. Mixing box; 40. Mixing blade; 41. Paint outlet; 42. Drive box; 43. Drive ring; 44. Support connecting rod; 45. Half gear ring; 46. Drive motor III; 47. Drive gear; 48. Third rotating rod; 49. Meshing tooth block; 40. Rotating disk. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] In the description of this invention, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0029] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0030] Example 1

[0031] Please see Figure 1 The present invention provides a technical solution comprising: a mixing chamber 1, a motor fixing plate 3 fixedly installed on the left outer wall of the mixing chamber 1, a drive motor 4 installed on the motor fixing plate 3, the output shaft of the drive motor 4 extending movably into the mixing chamber 1 and fixedly connected to the spiral conveying rod 2, a stirring assembly 5 provided on the right outer wall of the mixing chamber 1, a liquid storage tank 8 installed on the top of the stirring assembly 5, and a coating pretreatment assembly installed on the top of the mixing chamber 1.

[0032] Preferably, the liquid storage tank 8 and the stirring assembly 5 are connected by several conduits 6, and a water pump 7 is installed between the conduits 6 and the liquid storage tank 8.

[0033] Preferably, an automated production line for water-based coatings, for operating an automated production line for water-based coatings, includes the following steps:

[0034] S1: Start drive motor 4 to feed the paint particles into the paint pretreatment component for grinding and pretreatment;

[0035] S2: The grinding process of the coating powder enters the mixing chamber 1 and is conveyed to the mixing assembly 5 through the screw conveyor 2;

[0036] S3: The liquid in the storage tank 8 is transported to the stirring assembly 5 through the water pump 7 and the conduit 6;

[0037] S4: Thoroughly mix the paint powder and liquid in the mixing component 5 to form the desired water-based paint.

[0038] The working principle and beneficial effects of the above technical solution are as follows: The drive motor 4 is started, and the paint particles are fed into the paint pretreatment component for grinding and pretreatment. The ground paint powder enters the mixing chamber 1 and is then conveyed to the stirring component 5. Liquid from the storage tank 8 is conveyed to the stirring component 5 via the water pump 7 and the conduit 6. Subsequently, the paint powder and liquid in the stirring component 5 are thoroughly stirred to form the desired water-based paint. The paint pretreatment component allows for further thorough and uniform mixing of the ground raw materials with water, ensuring paint quality, improving product quality, and increasing production efficiency.

[0039] Example 2

[0040] Based on Example 1, please refer to Figure 2 The coating pretreatment assembly includes: a pretreatment box 19, which is fixedly connected to a mixing box 1, and a through hole 20 is provided between the pretreatment box 19 and the mixing box 1. A limiting collar 16 is fixedly connected to the outer wall of the pretreatment box 19. A second rotating rod 15 is movably disposed in the limiting collar 16, and bevel gear 17 and bevel gear 14 are fixedly sleeved at the upper and lower ends of the second rotating rod 15, respectively.

[0041] Preferably, a timing pulley 9 is fixedly sleeved on the output shaft of the drive motor 4, a timing pulley 11 and a bevel gear 13 are fixedly sleeved on one end of the first rotating rod 12 extending outside the pretreatment box 19, the timing pulley 9 and the timing pulley 11 are connected by a timing belt 10, the bevel gear 13 meshes with the bevel gear 24, and a bevel gear 4 18 is fixedly sleeved on one end of the reciprocating screw 21 extending outside the pretreatment box 19, the bevel gear 3 17 meshes with the bevel gear 4 18.

[0042] Preferably, the top of the pretreatment box 19 is symmetrically provided with two sets of paint inlets 22, and two sets of guide blocks 26 are symmetrically fixedly connected to the left and right inner walls of the pretreatment box 19. The pre-crushing block 24 is located between the two sets of guide blocks 26, and the pre-crushing block 24 is connected to the top of the inner wall of the pretreatment box 19 through the drive cylinder 23. Several crushing teeth 25 are provided on the side of the two sets of guide blocks 26 and the pre-crushing block 24 that are close to each other.

[0043] Preferably, the reciprocating screw 21 is rotatably connected to the inner wall of the pretreatment box 19, and two sets of crushing clamps 27 are symmetrically sleeved on the reciprocating screw 21. One end of the first connecting rod 28 is rotatably connected to the crushing clamp 27, and the other end of the first connecting rod 28 is rotatably connected to the grinding body 29. The grinding body 29 is slidably connected to the inner wall of the pretreatment box 19. The second drive motor 30 is installed at the rear end of the outer wall of the pretreatment box 19, and the output shaft of the second drive motor 30 extends movably into the grinding body 29. The grinding ring 31 is fixedly sleeved on the output shaft of the second drive motor 30. The bottom of the grinding ring 31 has a discharge port 34. Two sets of fixing blocks 33 are symmetrically fixedly connected to the left and right inner walls of the pretreatment box 19, and the grinding body 29 and the fixing blocks 33 are connected by a buffer spring 32.

[0044] Preferably, the first rotating rod 12 is rotatably connected to the inner wall of the pretreatment box 19, the screen 35 is movably connected to the inner wall of the pretreatment box 19, two sets of eccentric wheels 37 are symmetrically provided on the outer wall of the first rotating rod 12, and the screen 35 is slidably connected to the eccentric wheels 37 through the support rod, and the outer wall of the pretreatment box 19 is provided with a discharge port 36.

[0045] Preferably, the through hole 20, the paint inlet 22, the first outlet 34 and the second outlet 36 are all equipped with solenoid valves for controlling their opening and closing.

[0046] The working principle and beneficial effects of the above technical solution are as follows: During use, when the drive motor 4 is started, the paint particles are fed into the pretreatment box 19 from the paint inlet 22. At this time, the paint particles will fall along the channel between the pre-crushing block 24 and the guide block 26. During the falling process, the drive cylinder 23 drives the pre-crushing block 24 to move up and down reciprocally, thereby causing several crushing teeth 25 to initially crush the paint particles and flow between the two sets of crushing clamps 27. Since the drive motor 4 drives the synchronous pulley 11 to rotate through the synchronous pulley 9 and the synchronous belt 10, the synchronous pulley 11 drives the first rotating rod 12 to rotate, and then drives the second rotating rod 12 to rotate under the meshing of the bevel gear 13 and the bevel gear 14. The moving rod 15 rotates, and while the second rotating rod 15 rotates, it drives the reciprocating screw 21 to rotate through the meshing of bevel gear 3 17 and bevel gear 4 18. At this time, the two sets of crushing clamps 27 move back and forth along the outer wall of the reciprocating screw 21 under the drive of the reciprocating screw 21, thereby further crushing the paint particles between the two sets of crushing clamps 27 and causing them to fall into the grinding body 29. The drive motor 2 30 starts and drives the grinding ring 31 to rotate continuously. As the two sets of crushing clamps 27 move back and forth continuously, they drive the entire grinding body 29 to move up and down along the inner wall of the pretreatment box 19 through the first connecting rod 28, thereby continuously changing the distance between the inner wall of the grinding body 29 and the grinding ring 31. In this way, the grinding body can be further crushed. The coating particles inside the mill body 29 are ground more thoroughly and finely. After a period of grinding, the solenoid valve at the discharge port 34 is opened, allowing the ground coating powder to fall onto the screen 35. Meanwhile, the first rotating rod 12 continues to rotate under the drive of the second synchronous belt pulley 11. This causes the two sets of eccentric wheels 37 on the first rotating rod 12 to drive the screen 35 to vibrate up and down via two sets of support rods, thus performing a final sieve of the coating powder on the screen 35 before it enters the mixing chamber 1 through the second drive motor 30. The spiral conveyor rod 2, driven by the drive motor 4, pushes the coating powder into the mixing assembly 5 for thorough mixing with water. The different diameters of the first synchronous belt pulley 9 and the second synchronous belt pulley 11, along with the bevel gear 13 and the bevel gear... The different numbers of teeth on bevel gears 14, 17, 18, and 21 allow for varying rotational speeds among the screw conveyor 2, the first rotating rod 12, and the reciprocating screw 21. This enables adjustment of the grinding, filtering, and feed speed of the coating particles. The limiting collar 16 limits the movement of the second rotating rod 15, preventing it from shifting. The reciprocating screw 21 allows the drive motor 4 to move the two sets of crushing clamps 27 back and forth. The buffer spring 32 protects the grinding body 29 during its up-and-down movement. Large coating powder particles filtered through the screen 35 can be discharged from the outlet 36 and collected.Finally, the materials are uniformly recycled into the coating pretreatment unit for reuse, saving materials and reducing costs. The coating pretreatment unit ensures that the ground raw materials are thoroughly and evenly mixed with water, guaranteeing coating quality, improving product quality, and increasing production efficiency.

[0047] Example 3

[0048] Based on any one of Examples 1-2, please refer to Figure 3-4 It also includes: the mixing assembly 5, which includes: a mixing box 38 and a drive box 41. The drive box 41 is fixedly connected to the outer wall of the rear end of the mixing box 38. The mixing box 38 is provided with several sets of mixing blades 39. The bottom of the mixing box 38 is provided with a paint outlet 40.

[0049] Preferably, the drive motor 45 is fixedly connected to the rear end of the inner wall of the drive housing 41, the drive ring 42 is movably connected to the inner wall of the drive housing 41, a number of support rods 43 are arranged around the output shaft of the drive motor 45, one end of the support rod 43 is fixedly connected to the output shaft of the drive motor 45, and the other end of the support rod 43 is fixedly connected to the drive ring 42. A half-gear ring gear 44 is fixedly sleeved on the output shaft of the drive motor 45, and a number of meshing tooth blocks 48 are provided on the inner wall of the drive ring 42. One end of the third rotating rod 47 is rotatably connected to the rear end of the inner wall of the drive housing 41, and the other end of the third rotating rod 47 extends movably into the mixing tank 38. A drive gear 46 is fixedly sleeved on the outer wall of the third rotating rod 47, and the drive gear 46 meshes with the half-gear ring gear 44 and a number of meshing tooth blocks 48 respectively. A rotating disk 49 is fixedly connected to one end of the third rotating rod 47 that extends into the mixing tank 38, and a number of sets of stirring blades 39 are fixedly provided at the front end of the rotating disk 49.

[0050] The working principle and beneficial effects of the above technical solution are as follows: When the ground raw material enters the mixing tank 38, the drive motor 45 is started. At this time, the drive motor 45 drives the drive ring 42 to rotate through several supporting connecting rods 43. Since the inner wall of the drive ring 42 is provided with a semi-circular meshing tooth block 48, the drive gear 46 first rotates clockwise under the drive of the meshing tooth block 48, and drives the rotating disk 49 to rotate through the third rotating rod 47. At this time, several stirring blades 39 will also rotate clockwise to fully mix the ground coating particles and water. When the drive ring... After the semi-circular meshing tooth block 48 inside 42 rotates and no longer meshes with the drive gear 46, the semi-circular gear 44 meshes with the drive gear 46 under the drive of the drive motor 45. At this time, the drive gear 46 first rotates counterclockwise under the drive of the semi-circular gear 44, and causes several stirring blades 39 to rotate counterclockwise as well. Through this structural arrangement, several stirring blades 39 can rotate clockwise and counterclockwise at multiple frequencies and high speeds per unit time, which can make the paint particles and water in the mixing box 38 fully mixed, further improving the mixing efficiency and quality.

[0051] While it's possible to directly set forward and reverse motors for stirring in different directions, manually switching them on and off is required to change the rotation direction. Furthermore, to thoroughly mix the paint particles and water in a short time, the rotation direction of the forward and reverse motors needs to be changed frequently. This frequent reversal can easily lead to damage to the AC contactor contacts due to the motors not completely stopping during forward rotation and excessive starting current, potentially causing accidents. In contrast, this invention uses a single-direction motor for continuous rotation. Through a special structure within the drive housing 41, several stirring blades 39 can rotate clockwise and counterclockwise at high frequency within a unit of time without changing the motor's rotation direction. This method is simple, efficient, safe, and low-cost.

[0052] Example 4

[0053] Based on any one of Examples 1-3, it also includes:

[0054] Speed ​​sensor 1 is installed on the reciprocating lead screw 21 to detect the rotational speed of the reciprocating lead screw 21;

[0055] The second speed sensor is installed on the output shaft of the second drive motor 30 and is used to detect the rotational speed of the second drive motor 30.

[0056] The third speed sensor is installed on the first rotating rod 12 and is used to detect the rotation speed of the first rotating rod 12.

[0057] Speed ​​sensor four is installed on the output shaft of drive motor 4 and is used to detect the rotation speed of drive motor 4;

[0058] An alarm is installed on the outer wall of the pretreatment box 19.

[0059] The controller, located on the outer wall of the pretreatment chamber 19, is electrically connected to speed sensors 1, 2, 3, and 4, and an alarm. The controller controls the alarm to sound, comprising the following steps:

[0060] Step 1: The controller obtains the quality index of the produced water-based coating based on the detection values ​​of speed sensor 1, speed sensor 2, speed sensor 3, and speed sensor 4 and formula (1):

[0061] (1)

[0062] in, This refers to the quality index of water-based coatings. The value detected by the speed sensor is [value]. This is the detection value from speed sensor two. The value detected by the speed sensor is 3. This is the detection value from speed sensor four. The rotational speed of the stirring blades within the stirring assembly 5. The tooth spacing between the 25 breaking teeth (here, the tooth spacing between several 25 breaking teeth is considered to be the same). The aperture of the sieve is 35. This is the Poisson's ratio of the coating particles (the maximum value among all different coating particle materials is taken here). The temperature of the solution (i.e., the temperature of the water) inside the storage tank 8. For ambient temperature, The particle diameter of the water-based coating is set to the ideal dissolved state. It is a natural constant;

[0063] The working principle and beneficial effects of the above technical solution are as follows: As the production line is used for longer, the various parts used for crushing and grinding in the coating pretreatment component will wear out, and the screen 35 will also become clogged, resulting in insufficient grinding of water-based coating particles. The rotation speed of each part used for crushing and grinding in the coating pretreatment component is detected by speed sensor 1, speed sensor 2, speed sensor 3, and speed sensor 4 during use. Based on the temperature of the solution and the influence of the particle diameter of the dissolved water-based coating on the quality of the water-based coating under ideal conditions, the controller calculates the quality index of the water-based coating using formula (1). The controller obtains the quality index of the water-based coating using formula (1). If the quality index of the water-based coating is less than the preset quality index of the water-based coating (0.95), the alarm will sound, reminding the operator to check the grinding of the water-based coating in order to improve the quality of the water-based coating.

[0064] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. An aqueous coating automatic production line, characterized in that: It comprises: A mixing box (1), a motor fixing plate (3) is fixedly installed on the left side outer wall of the mixing box (1), a driving motor (4) is installed on the motor fixing plate (3), the output shaft of the driving motor (4) is movably extended into the mixing box (1) and is fixedly connected with a spiral conveying rod (2), a stirring assembly (5) is arranged on the right side outer wall of the mixing box (1), a liquid storage box (8) is installed on the top of the stirring assembly (5), and a coating pretreatment assembly is installed on the top of the mixing box (1); The coating pretreatment assembly comprises: a pretreatment box (19) fixedly connected with the mixing box (1), a through hole (20) is arranged between the pretreatment box (19) and the mixing box (1), a limiting sleeve ring (16) is fixedly connected with the outer wall of the pretreatment box (19), a second rotating rod (15) is movably arranged in the limiting sleeve ring (16), and a bevel gear three (17) and a bevel gear two (14) are fixedly sleeved with the upper and lower ends of the second rotating rod (15), respectively; A synchronous pulley one (9) is fixedly sleeved with the output shaft of the driving motor (4), a synchronous pulley two (11) and a bevel gear one (13) are fixedly sleeved with one end of the first rotating rod (12) extending out of the pretreatment box (19), the synchronous pulley one (9) and the synchronous pulley two (11) are drivingly connected through a synchronous belt (10), the bevel gear one (13) is engaged with the bevel gear two (14), and a reciprocating lead screw (21) is fixedly sleeved with a bevel gear four (18) at one end extending out of the pretreatment box (19), the bevel gear three (17) is engaged with the bevel gear four (18); The reciprocating lead screw (21) is rotatably connected with the inner wall of the pretreatment box (19), two groups of crushing clamps (27) are symmetrically sleeved on the reciprocating lead screw (21), one end of a first connecting rod (28) is rotatably connected with the crushing clamp (27), the other end of the first connecting rod (28) is rotatably connected with a grinding body (29), the grinding body (29) is slidably connected with the inner wall of the pretreatment box (19), a driving motor two (30) is installed on the rear end of the outer wall of the pretreatment box (19), and the output shaft of the driving motor two (30) movably extends into the grinding body (29), a grinding ring (31) is fixedly sleeved on the output shaft of the driving motor two (30), a discharge port one (34) is formed in the bottom of the grinding ring (31), two groups of fixed blocks (33) are symmetrically fixedly connected with the left and right inner walls of the pretreatment box (19), and the grinding body (29) and the fixed blocks (33) are connected through a buffer spring (32); The first rotating rod (12) is rotatably connected with the inner wall of the pretreatment box (19), a screen (35) is movably connected with the inner wall of the pretreatment box (19), two groups of eccentric wheels (37) are symmetrically arranged on the outer wall of the first rotating rod (12), the screen (35) is slidably connected with the eccentric wheels (37) through a support rod, and the outer wall of the pretreatment box (19) is provided with a discharge port two (36).

2. The aqueous coating automatic production line according to claim 1, characterized in that: The liquid storage tank (8) and the stirring assembly (5) are communicated through a plurality of conduits (6), and a water pump (7) is installed between the conduit (6) and the liquid storage tank (8).

3. The automatic water-based paint production line according to claim 1, characterized in that: The top of the pretreatment box (19) is symmetrically provided with two groups of paint inlets (22), two groups of flow guide blocks (26) are symmetrically and fixedly connected to the left and right inner walls of the pretreatment box (19), a pre-crushing block (24) is arranged between the two groups of flow guide blocks (26), the pre-crushing block (24) is connected to the top inner wall of the pretreatment box (19) through a driving cylinder (23), and the sides of the two groups of flow guide blocks (26) and the pre-crushing block (24) that are close to each other are each provided with a plurality of crushing teeth (25).

4. The automatic water-based paint production line according to claim 1, characterized in that: The stirring assembly (5) comprises a stirring box (38) and a driving box (41), the driving box (41) is fixedly connected to the rear end outer wall of the stirring box (38), a plurality of groups of stirring blades (39) are arranged in the stirring box (38), and a paint outlet (40) is formed in the bottom of the stirring box (38).

5. The automatic water-based paint production line according to claim 4, characterized in that: The driving motor three (45) is fixedly connected to the rear end inner wall of the driving box (41), the driving ring (42) is movably connected to the inner wall of the driving box (41), a plurality of support connecting rods (43) are arranged around the output shaft of the driving motor three (45), one end of each support connecting rod (43) is fixedly connected to the output shaft of the driving motor three (45), the other end of each support connecting rod (43) is fixedly connected to the driving ring (42), a half-toothed ring gear (44) is fixedly sleeved on the output shaft of the driving motor three (45), a plurality of meshing tooth blocks (48) are arranged on the inner wall of the driving ring (42), one end of the third rotating rod (47) is rotatably connected to the rear end inner wall of the driving box (41), the other end of the third rotating rod (47) movably extends into the stirring box (38), a driving gear (46) is fixedly sleeved on the outer wall of the third rotating rod (47), and the driving gear (46) is meshed with the half-toothed ring gear (44) and the plurality of meshing tooth blocks (48), respectively, one end of the third rotating rod (47) extending into the stirring box (38) is fixedly connected with a rotating disc (49), and a plurality of groups of stirring blades (39) are fixedly arranged on the front end of the rotating disc (49).

6. A preparation method of an automatic water-based paint production line, used for operating the automatic water-based paint production line according to claim 2, characterized by comprising the following steps: S1: starting the driving motor (4) to put the paint particles into the paint pretreatment assembly for grinding pretreatment; S2: the paint powder after grinding treatment enters the mixing box (1) and is conveyed to the stirring assembly (5) through the spiral conveying rod (2); S3: the liquid in the liquid storage tank (8) is conveyed to the stirring assembly (5) through the water pump (7) and the conduit (6); S4: the paint powder and the liquid in the stirring assembly (5) are fully stirred to form the required water-based paint. ​

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