A coating production device with pressure control defoaming function

Abstract

The utility model discloses a coating production device with pressure control defoaming function relates to coating stirring device field, this kind of coating production device with pressure control defoaming function includes cauldron body, and the lateral wall of cauldron body is connected with the vacuumizing interface, and a set of vacuumizing device is arranged in the outside of cauldron body when working, and vacuumizing device specifically includes the vacuum pump, vacuum gauge and butterfly valve that are connected in proper order, and butterfly valve entrance connects the vacuumizing interface, this kind of coating production device with pressure control defoaming function through setting the feed pipe below the working liquid level, and the distribution structure of its inboard, thoroughly changed the traditional direct to liquid level feeding mode, ensure that the powder is in the base fluid inside when releasing, fundamentally avoid the problem that the powder floats on the surface of base fluid, and the powder directly enters the liquid inside, can be stirred by the action of rapidly sucking and dispersing, significantly shorten the time of powder wetting subsidence, thereby greatly improve the mixing efficiency.

Description

Technical Field

[0001] This utility model relates to the field of paint mixing devices, and in particular to a paint production device with pressure control and degassing function. Background Technology

[0002] In the raw material mixing and stirring process of paint production, air enters the raw materials and generates bubbles due to stirring. Therefore, existing stirring processes are all carried out in vacuum mixing tanks, and the defoaming effect is achieved by using vacuum to break up the bubbles.

[0003] The typical mixing sequence for coatings is to first add the liquid base to the tank, followed by a quantitative and timed addition of powder. However, existing vacuum mixing tanks use a direct addition method for the powder, which causes the powder to float on the surface of the base for a long time, resulting in prolonged mixing time and reduced mixing efficiency. Utility Model Content

[0004] To overcome the shortcomings of existing technologies, the purpose of this utility model is to provide a coating production device with pressure control and degassing function, which solves the problem that when powder raw materials are added during the mixing process in existing vacuum mixing tanks, the powder raw materials tend to float on the surface of the base liquid, resulting in a decrease in mixing efficiency.

[0005] To address the problems in the existing technology, the technical solution of this utility model is as follows:

[0006] A coating production apparatus with pressure-controlled degassing function includes a vessel body, a vacuum port connected to the side wall of the vessel body, a feed conduit fixed to the top of the vessel body, the upper end and the lower end of the feed conduit being located above the vessel body and inside the vessel body, respectively, a material distribution device being provided on the inner wall of the feed conduit, a filling pipe being formed on the upper side wall of the feed conduit, the filling pipe being inclined and connected to the feed conduit, the lower end of the feed conduit extending below the working liquid level, and the end of the filling pipe facing away from the feed conduit being flared.

[0007] Optionally, the material distribution device includes a material distribution plate fixed to the inner wall of the feed conduit, which is higher than the working liquid level and has a first discharge port. A drive shaft is rotatably connected at the axis of the material distribution plate. The drive shaft passes through the top of the feed conduit and is driven to rotate by a rotating device. A material discharge plate is fixed at the bottom of the drive shaft, the top surface of which is in contact with the bottom surface of the material distribution plate and has a second discharge port corresponding to the first discharge port.

[0008] Optionally, the rotating device includes a servo motor fixed to the top surface of the feed duct, and the top of the drive shaft is fixed to the output end of the servo motor.

[0009] Optionally, a disturbance roller is fixed on the outer wall of the drive shaft. The disturbance roller is arranged radially along the drive shaft and is located above the distribution plate. Several groups of disturbance rollers are provided. The groups of disturbance rollers are distributed at equal intervals along the axial direction of the drive shaft. Multiple disturbance rollers in each group are distributed at equal angular intervals around the axis of the drive shaft. The cross-section of the disturbance roller is circular.

[0010] Compared with the prior art, the advantages of this utility model are as follows:

[0011] This invention completely changes the traditional method of directly feeding materials onto the liquid surface by setting a feeding conduit extending below the working liquid surface and a material distribution structure on its inner side. This ensures that the powder is already inside the base liquid when it is released, fundamentally avoiding the problem of the powder floating on the surface of the base liquid. The powder directly enters the liquid and can be quickly entrained and dispersed by the stirring action, significantly shortening the time for the powder to wet and sink, thereby greatly improving the mixing efficiency.

[0012] This invention solves the floating problem by arranging a material distribution structure inside the feed conduit. The intermittent feeding method also avoids local accumulation or clumping caused by a large amount of powder rushing in instantly. The powder enters the liquid at a relatively controllable rate, making it easier to be evenly wetted and dispersed by the flowing base liquid.

[0013] This invention incorporates a disturbance roller on the drive shaft, which agitates the powder during feeding, thereby maintaining better powder flow and facilitating feeding. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0015] Figure 2 This is a schematic diagram of the servo motor structure of this utility model.

[0016] Figure 3 This is a schematic diagram of the internal structure of the vessel body of this utility model.

[0017] Figure 4 This is a schematic diagram of the internal structure of the feed conduit of this utility model.

[0018] Figure 5 This is a schematic diagram of the disturbance roller structure of this utility model.

[0019] Reference numerals: 1. Reactor body; 2. Vacuum port; 3. Feed pipe; 4. Filling pipe; 5. Liquid feed pipe; 6. Valve; 7. Distributor plate; 8. First discharge port; 9. Drive shaft; 10. Servo motor; 11. Feeding plate; 12. Second discharge port; 13. Disturbance roller. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0021] Please see Figures 1 to 5 This embodiment provides a coating production device with pressure control and degassing function, including a vessel body 1. A vacuum port 2 is connected to the upper end of the side wall of the vessel body 1. The vacuum port 2 is located above the working liquid surface. During operation, a vacuum device is arranged on the outside of the vessel body 1. The vacuum device specifically includes a vacuum pump, a vacuum gauge and a butterfly valve connected in sequence. The inlet of the butterfly valve is connected to the vacuum port 2. The vacuum device is used to achieve the effect of vacuuming the vessel body 1.

[0022] A stirring shaft is rotatably connected to the axis of the vessel body 1 via a bearing. The lower end of the stirring shaft is located inside the vessel body 1 and is fixed with stirring blades. A first motor is fixed at the top of the vessel body 1, and the top of the stirring shaft is fixed to the output end of the first motor. This is the main component for achieving stirring and mixing.

[0023] Liquid base material is introduced into the vessel body 1 through a liquid inlet pipe 5 located at the top of the vessel body 1. Then, the liquid inlet pipe 5 is closed. A feed conduit 3 is fixed at the top of the vessel body 1. The upper end and lower end of the feed conduit 3 are located above the vessel body 1 and inside the vessel body 1, respectively. A filling pipe 4 is formed on the upper side wall of the feed conduit 3. The filling pipe 4 is inclined and connected to the feed conduit 3. The end of the filling pipe 4 away from the feed conduit 3 is shaped like a funnel. After the liquid base material is added, the powder is put into the filling pipe 4. The funnel-shaped filling pipe 4 makes it easier for the powder to be put into the filling pipe. Then, the powder enters the feed conduit 3 and the filling pipe 4 is closed, so that the vessel body 1 is in a closed state.

[0024] The opening and closing of the liquid inlet pipe 5 and the inlet conduit 3 are achieved by valves 6, which are respectively fixed on the liquid inlet pipe 5 and the filling pipe 4.

[0025] During stirring, the first motor is driven to rotate the stirring shaft, which causes the stirring blades to agitate the base liquid in the vessel 1, making the powder and base liquid mix evenly. Then, the vacuum device is driven to create a vacuum in the vessel 1, causing the generated bubbles to split and achieving a defoaming effect.

[0026] The lower end of the feed conduit 3 extends below the working liquid level. A distribution plate 7 is fixed on the inner wall of the feed conduit 3. Its height is higher than the working liquid level and it has a first discharge port 8. A drive shaft 9 is rotatably connected at its axis. The drive shaft 9 passes through the top of the feed conduit 3. A servo motor 10 is fixed on the top surface of the feed conduit 3. The top of the drive shaft 9 is fixed to the output end of the servo motor 10. A discharge plate 11 is fixed at the bottom of the drive shaft 9. Its top surface is attached to the bottom surface of the distribution plate 7 and it has a second discharge port 12 corresponding to the first discharge port 8.

[0027] After the powder is added, it is located at the top of the feed conduit 3, which is blocked by the distribution plate 7. During the stirring process, the control servo motor 10 works intermittently, intermittently driving the drive shaft 9 to rotate. The rotation of the drive shaft 9 drives the discharge plate 11 to rotate. When the second discharge port 12 is directly opposite the first discharge port 8, the powder will fall and eventually enter the base liquid from the bottom opening of the liquid inlet conduit.

[0028] By setting up a feed conduit 3 that extends below the working liquid surface and its built-in distribution structure, the powder can directly enter the base liquid, which not only eliminates the floating problem, but also avoids the accumulation and clumping caused by the instantaneous influx of powder, ensuring uniform dispersion of powder and significantly improving mixing efficiency.

[0029] A disturbance roller 13 is fixed on the outer wall of the drive shaft 9. The disturbance roller 13 is arranged radially along the drive shaft 9 and is located above the material distribution plate 7. Several groups of disturbance rollers 13 are provided. The groups of disturbance rollers 13 are distributed at equal intervals along the axial direction of the drive shaft 9. Each group of multiple disturbance rollers 13 are distributed at equal angular intervals around the axis of the drive shaft 9. The cross-section of the disturbance roller 13 is circular.

[0030] During the powder feeding process, without corresponding physical disturbance, the feeding will inevitably be unsmooth. Therefore, by arranging the disturbance roller 13, while driving the feeding disc 11 to rotate, the disturbance roller 13 is simultaneously driven to disturb the powder, making the feeding smoother. The coaxial arrangement does not require the addition of a power unit.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A coating production apparatus with pressure-controlled degassing function, comprising a vessel body (1), wherein a vacuum port (2) is connected to the side wall of the vessel body (1), characterized in that, The top of the vessel body (1) is fixed with a feed pipe (3). The upper end and lower end of the feed pipe (3) are located above the vessel body (1) and inside the vessel body (1), respectively. A material distribution device is provided on the inner wall of the feed pipe (3). A filling pipe (4) is formed on the upper side wall of the feed pipe (3). The filling pipe (4) is inclined and connected to the feed pipe (3). The lower end of the feed pipe (3) extends below the working liquid surface.

2. The coating production apparatus with pressure-controlled defoaming function according to claim 1, characterized in that, The end of the filling pipe (4) facing away from the feed pipe (3) is flared.

3. The coating production apparatus with pressure-controlled defoaming function according to claim 1, characterized in that, The material distribution device includes a material distribution plate (7) fixed to the inner wall of the feed conduit (3), which is higher than the working liquid level and has a first discharge port (8). A drive shaft (9) is rotatably connected at its axis. The drive shaft (9) passes through the top of the feed conduit (3) and is driven to rotate by a rotating device. A discharge plate (11) is fixed at the bottom of the drive shaft (9), whose top surface is attached to the bottom surface of the material distribution plate (7) and has a second discharge port (12) corresponding to the first discharge port (8).

4. The coating production apparatus with pressure-controlled defoaming function according to claim 3, characterized in that, The rotating device includes a servo motor (10) fixed on the top surface of the feed duct (3), and the top of the drive shaft (9) is fixed to the output end of the servo motor (10).

5. The coating production apparatus with pressure-controlled defoaming function according to claim 4, characterized in that, A disturbance roller (13) is fixed on the outer wall of the drive shaft (9). The disturbance roller (13) is arranged radially along the drive shaft (9) and is located above the material distribution plate (7).

6. The coating production apparatus with pressure-controlled defoaming function according to claim 5, characterized in that, The disturbance rollers (13) are provided in several groups, and the groups of disturbance rollers (13) are distributed at equal intervals along the axial direction of the drive shaft (9). Each group of multiple disturbance rollers (13) are distributed at equal angular intervals around the axis of the drive shaft.

7. The coating production apparatus with pressure-controlled defoaming function according to claim 5, characterized in that, The cross-section of the disturbance roller (13) is circular.

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