Vacuum tank for high-speed dispersion of coating

Abstract

The utility model discloses a vacuum tank for high-speed dispersion of paint, which relates to the technical field of vacuum tanks and particularly comprises a tank body, a top cover is mounted at the top of the tank body, an air suction pipe is mounted on one side of the top cover, a second electric control valve is connected to one end, close to the top cover, of the air suction pipe, and the other end of the air suction pipe is mounted on a vacuum pump. A mounting seat is mounted on one side of the tank body, the vacuum pump is fixed on the mounting seat, a control box is mounted on the side surface of the tank body, a controller is arranged in the control box, pressure sensors are mounted on the inner surface of the top cover, and the controller is respectively connected with the pressure sensors through data lines. The first motor and the second motor can drive the second rotating shaft and the first rotating shaft to rotate, then the dispersing disc and the stirring blades are controlled to rotate, raw materials are dispersed, meanwhile, the raw materials can be conveyed to the dispersing disc through the spiral blades, and therefore the raw materials can be repeatedly dispersed through the dispersing disc and the stirring blades, and dispersion is sufficient.

Description

Technical Field

[0001] The utility model relates to the technical field of vacuum tanks, in particular to a vacuum tank used for high-speed dispersion of coatings. Background Art

[0002] Paint, traditionally known as paint in China, is a viscous liquid applied to the surface of an object to be protected or decorated, and can form a continuous film that is firmly attached to the coated object. It is usually based on resin, oil, or emulsion, with or without pigments, fillers, and corresponding additives, and is prepared with organic solvents or water.

[0003] During coating processing, coatings are typically dispersed using a vacuum disperser. During processing, the raw materials are placed into a vacuum tank, which is then evacuated. The disperser disc is then controlled to rotate at high speed within the raw materials to disperse the raw materials. However, existing disperser discs in vacuum tanks are typically single, resulting in a small contact area with the raw materials during the dispersion process. This results in the raw materials above and below the disperser disc receiving less shear force from the rotating disc, resulting in insufficient dispersion and poor performance. Therefore, we propose a vacuum tank for high-speed coating dispersion. Utility Model Content

[0004] In response to the shortcomings of the poor dispersion effect of existing vacuum tanks, the utility model provides a vacuum tank for high-speed dispersion of coatings, which has the advantages of dispersing the raw materials inside the tank body by arranging a dispersion plate and stirring blades, and at the same time lifting and transporting the raw materials through spiral blades, thereby circulating and dispersing the raw materials, and fully dispersing them, thereby solving the problems raised in the above background technology.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a vacuum tank for high-speed dispersion of coatings, comprising a tank body, a top cover installed on the top of the tank body, an air intake pipe installed on one side of the top cover, an end of the air intake pipe close to the top cover connected to a second electric control valve, the other end of the air intake pipe installed on a vacuum pump, a second rotating shaft provided at the upper part of the interior of the tank body, the top of the second rotating shaft being rotatably connected to the top cover, and a first motor connected to the top of the second rotating shaft, the first motor being fixed to the top cover;

[0006] Two connecting rings are coaxially provided below the second rotating shaft, with a plurality of stirring blades installed between the two connecting rings. The inner surface of the upper connecting ring is connected to the side surface of the bottom end of the second rotating shaft through a plurality of fixing rods;

[0007] A tubular channel is installed at the bottom of the tank body, and a first rotating shaft is installed in the tubular channel. The bottom of the first rotating shaft is rotatably installed with the bottom of the tubular channel, and the top of the first rotating shaft extends into the interior of the tank body. At least two dispersion discs are equidistantly installed on the top side of the first rotating shaft, and each dispersion disc is located inside the connecting ring. A plurality of pairs of dispersion blades are equidistantly installed on the edge of each dispersion disc.

[0008] A spiral blade is installed on the side of the first rotating shaft and below the dispersion disk. The bottom of the spiral blade extends to the bottom end of the tubular channel. A second motor connected to the first rotating shaft is installed at the bottom of the tubular channel. The first rotating shaft is rotatably connected to the bottom of the tubular channel.

[0009] Preferably, a mounting base is installed on one side of the tank body, the vacuum pump is fixed on the mounting base, a control box is installed on the side of the tank body, a controller is provided in the control box, a pressure sensor is installed on the inner surface of the top cover, and the controller is connected to the pressure sensor and the second electric control valve respectively through data lines; wherein, the first motor and the second motor are both connected to the controller through wires.

[0010] Preferably, a connecting sleeve is coaxially provided at the lower inner portion of the tank body, the connecting sleeve is sleeved on the spiral blade, there is a distance between the bottom of the connecting sleeve and the bottom end of the tank body, and the outer surface of the connecting sleeve is fixed to the inner surface of the tank body by at least two brackets.

[0011] Preferably, the inner surfaces of the connecting sleeve and the tubular passage are both clearance-matched with the edges of the spiral blades.

[0012] Preferably, a plurality of connecting rods are equidistantly connected between the two connecting rings, each connecting rod is coaxially arranged with the connecting ring, and both ends of each connecting rod are fastened to the two connecting rings by nuts.

[0013] Preferably, each pair of dispersing blades is curved in an "L" or "S" shape, and the curvature directions of two adjacent dispersing blades are opposite.

[0014] Preferably, a feed port is opened on one side of the top cover, a cover plate is provided in the feed port, one side of the cover plate is connected to the feed port through a hinge seat, the other side of the cover plate is fixed to the feed port through a lock, and the cover plate is sealed with the feed port.

[0015] Preferably, a discharge pipe is installed on one side of the bottom of the tubular channel, a first electrically controlled valve is installed on the discharge pipe, and the first electrically controlled valve is connected to the controller via a data line.

[0016] Preferably, a plurality of legs are coaxially mounted on the bottom edge of the tank, and the second motor is located between the legs.

[0017] Preferably, the first rotating shaft and the second rotating shaft have opposite rotation directions.

[0018] Compared with the prior art, when the present invention is in use, the first motor and the second motor can drive the second rotating shaft and the first rotating shaft to rotate, thereby controlling the rotation of the dispersion disk and the stirring blades to disperse the raw materials. At the same time, the raw materials can be transported to the dispersion disk through the spiral blades, so that the dispersion disk and the stirring blades can circulate and disperse the raw materials fully. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural diagram of the present utility model.

[0020] Figure 2 This is the internal main view of the tank structure of the present invention.

[0021] Figure 3 This is a schematic diagram of the connecting ring and stirring blade structure of the utility model.

[0022] Figure 4 This is a schematic diagram of the first rotating shaft structure of the present utility model.

[0023] In the figure: 1. first electric control valve; 2. discharge pipe; 3. mounting base; 4. vacuum pump; 5. pressure sensor; 6. suction pipe; 7. second electric control valve; 8. first motor; 9. cover plate; 10. feed port; 11. top cover; 12. stirring blade; 13. connecting ring; 14. connecting rod; 15. tank body; 16. tubular channel; 17. second motor; 18. support leg; 19. connecting sleeve; 20. spiral blade; 21. dispersion blade; 22. bracket; 23. first rotating shaft; 24. dispersion disk; 25. second rotating shaft; 26. fixing rod; 27. control box. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] See also Figures 1 to 4The utility model provides a technical solution: a vacuum tank for high-speed dispersion of coatings, comprising a tank body 15, a top cover 11 is installed on the top of the tank body 15, an intake pipe 6 is installed on one side of the top cover 11, and the end of the intake pipe 6 close to the top cover 11 is connected to the second electric control valve 7, the other end of the intake pipe 6 is installed on the vacuum pump 4, a mounting base 3 is installed on one side of the tank body 15, the vacuum pump 4 is fixed on the mounting base 3, a control box 27 is installed on the side of the tank body 15, a controller is provided in the control box 27, a pressure sensor 5 is installed on the inner surface of the top cover 11, and the controller is connected to the pressure sensor 5 and the second electric control valve 7 through data lines. The controller is a control motherboard, a host or a PLC logic controller. In actual use, before dispersing the raw materials, the staff needs to control the vacuum pump 4 through the controller. The vacuum pump 4 sucks out the gas in the tank body 15 under the action of the suction pipe 6, and detects the air pressure in the tank body 15 through the pressure sensor 5, and transmits the detection result to the controller. When the internal pressure of the tank body 15 reaches the preset value, the controller turns off the vacuum pump 4 and the second electric control valve 7 at the same time, closes the suction pipe 6, so that the inside of the tank body 15 remains in a vacuum state, thereby reducing the generation of bubbles and the volatilization of the solvent during the dispersion process of the raw materials.

[0026] like Figure 2 As shown, a second rotating shaft 25 is provided above the interior of the tank body 15. The top of the second rotating shaft 25 is rotatably connected to the top cover 11. The top of the second rotating shaft 25 is connected to the first motor 8, which is fixed to the top cover 11. Two connecting rings 13 are coaxially provided below the second rotating shaft 25. A plurality of stirring blades 12 are installed between the two connecting rings 13. The inner surface of the upper connecting ring 13 is connected to the bottom side of the second rotating shaft 25 via a plurality of fixing rods 26. By providing multiple stirring blades 12 between the two connecting rings 13, the force-bearing capacity of the stirring blades 12 can be increased, thereby preventing the stirring blades 12 from bending or breaking during high-speed rotation.

[0027] like Figure 2 As shown, a tubular channel 16 is installed at the bottom of the tank body 15, and a first rotating shaft 23 is provided in the tubular channel 16. The bottom of the first rotating shaft 23 is rotatably installed with the bottom of the tubular channel 16, and the top of the first rotating shaft 23 extends into the interior of the tank body 15, and a spiral blade 20 is installed on the side of the first rotating shaft 23 and below the dispersion disk 24, and the bottom of the spiral blade 20 extends to the bottom end of the tubular channel 16. A second motor 17 connected to the first rotating shaft 23 is installed at the bottom of the tubular channel 16, and the first rotating shaft 23 is rotatably connected to the bottom of the tubular channel 16; by providing multiple dispersion disks 24, the contact area between the dispersion disk 24 and the raw materials in the tank body 15 can be increased, thereby improving the dispersion effect.

[0028] like Figure 2As shown, a spiral blade 20 is installed on the side of the first rotating shaft 23 and below the dispersion disk 24, and the bottom of the spiral blade 20 extends to the bottom end of the tubular channel 16. The spiral blade 20 can transport the raw materials falling into the tubular channel 16 back to the tank body 15 to fully disperse the raw materials.

[0029] Wherein, the first motor 8 and the second motor 17 are both connected to the controller via wires. In actual use, the operation of the first motor 8 and the second motor 17 can be controlled by the controller without manual control by the staff.

[0030] Specifically, when the present invention is in use, after the staff has evacuated the interior of the tank body 15, the first motor 8 and the second motor 17 can be controlled by the controller to work. The first motor 8 and the second motor 17 respectively drive the second rotating shaft 25 and the first rotating shaft 23 to rotate, thereby controlling the rotation of the stirring blade 12 and the dispersion disk 24. After the dispersion disk 24 disperses the raw materials, the raw materials will flow toward the stirring blade 12 under the action of centrifugal force, and the stirring blade 12 will then perform a secondary dispersion treatment on the raw materials. At the same time, the raw materials that fall into the tubular channel 16 will be transported back to the tank body 15 under the action of the spiral blade 20 for cyclic dispersion treatment and sufficient dispersion.

[0031] Further, such as Figure 2 As shown, a connecting sleeve 19 is coaxially provided at the lower part of the interior of the tank body 15, and the connecting sleeve 19 is sleeved on the spiral blade 20. There is a gap between the bottom of the connecting sleeve 19 and the bottom end of the tank body 15, and the outer surface of the connecting sleeve 19 is fixed to the inner surface of the tank body 15 by at least two brackets 22. In actual use, the spiral blade 20 located inside the tank body 15 can be sleeved by the connecting sleeve 19, and the raw materials in the tank body 15 will flow into the spiral blade 20 through the gap between the connecting sleeve 19 and the bottom of the tank body 15. The spiral blade 20 can directly transport the raw materials to the dispersion disk 24, so that the raw materials can be circulated and dispersed for treatment, thereby improving the dispersion effect.

[0032] Furthermore, the inner surfaces of the connecting sleeve 19 and the tubular passage 16 are both clearance-matched with the edge of the spiral blade 20. This can prevent the spiral blade 20 from colliding or rubbing with the connecting sleeve 19 or the inner wall of the tubular passage 16 during rotation, thereby avoiding reducing the service life of the spiral blade 20.

[0033] Further, such as Figure 3 As shown, a plurality of connecting rods 14 are equidistantly connected between the two connecting rings 13. Each connecting rod 14 is coaxially arranged with the connecting ring 13, and each end of each connecting rod 14 is fastened to the two connecting rings 13 by nuts. The connecting rods 14 can increase the connection strength between the two connecting rings 13, prevent the lower connecting ring 13 from shaking during use and colliding with the dispersion disk 24, and prevent the stirring blade 12 from being broken by stress.

[0034] Further, such as Figure 4 As shown, each pair of dispersing blades 21 is curved in an "L" or "S" shape, and the curvature directions of two adjacent dispersing blades 21 are opposite. This can increase the contact area between the dispersing blades 21 and the raw material and improve the dispersing effect.

[0035] Further, such as Figure 1 As shown, a feed port 10 is formed on one side of the top of the top cover 11, and a cover plate 9 is provided inside the feed port 10. One side of the cover plate 9 is connected to the feed port 10 via a hinged seat, and the other side of the cover plate 9 is fixed to the feed port 10 via a lock, and the cover plate 9 and the feed port 10 are in a sealed fit. The staff can pour the raw materials into the tank body 15 through the feed port 10, and after the materials are loaded, the cover plate 9 is placed on the feed port 10 to seal the feed port 10 to prevent air leakage during vacuuming.

[0036] like Figure 1 As shown, a discharge pipe 2 is mounted on one side of the bottom of the tubular channel 16. A first electrically controlled valve 1 is mounted on the discharge pipe 2, which is connected to a controller via a data cable. Once the raw materials are dispersed, the controller controls the first electrically controlled valve 1 to open, while simultaneously controlling the second motor 17 to rotate the first rotating shaft 23 in reverse. The spiral blade 20 then rotates in counter-rotation, causing the raw materials in the tank 15 to flow through the gap between the connecting sleeve 19 and the bottom of the tank 15 and into the spiral blade 20. The spiral blade 20 then conveys the raw materials to the discharge pipe 2, where they are then discharged from the tank 15.

[0037] Further, such as Figure 1 As shown, a plurality of legs 18 are coaxially mounted on the bottom edge of the tank body 15, and the second motor 17 is located between the legs 18. The legs 18 can support the tank body 15 while keeping the second motor 17 at a certain distance from the ground to avoid hindering the operation of the second motor 17.

[0038] Furthermore, the first rotating shaft 23 and the second rotating shaft 25 rotate in opposite directions. In actual use, the relative speed between the dispersion disc 24 and the stirring blade 12 can be increased, thereby increasing the shear force of the dispersion disc 24 and the stirring blade 12 on the raw material and improving the dispersion effect.

[0039] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the devices or components referred to must have a specific direction, be constructed and operate in a specific direction. Therefore, they should not be understood as limiting the present invention. The terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance. In addition, unless otherwise expressly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, they can be fixed connections, detachable connections, or integral connections; they can be mechanical connections or electrical connections; they can be direct connections, indirect connections through an intermediate medium, or internal connections between two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. Furthermore, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0040] Although the 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 variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A vacuum tank for high-speed dispersion of coatings, comprising a tank body, a top cover installed on the top of the tank body, a suction pipe installed on one side of the top cover, a second electric control valve connected to one end of the suction pipe close to the top cover, and the other end of the suction pipe installed on a vacuum pump, characterized in that: A second rotating shaft is provided on the upper part of the tank body, the top of the second rotating shaft is rotatably connected to the top cover, and the top of the second rotating shaft is connected to a first motor, which is fixed on the top cover; Two connecting rings are coaxially arranged below the second rotating shaft, a plurality of stirring blades are installed between the two connecting rings, and the inner surface of the upper connecting ring is connected to the side surface of the bottom end of the second rotating shaft through a plurality of fixing rods; A tubular channel is installed at the bottom of the tank body, a first rotating shaft is arranged in the tubular channel, the bottom of the first rotating shaft is rotatably installed with the bottom of the tubular channel, the top of the first rotating shaft extends into the tank body, and at least two dispersion discs are equidistantly installed on the top side of the first rotating shaft, and each dispersion disc is located inside the connecting ring, and a plurality of pairs of dispersion blades are equidistantly installed on the edge of each dispersion disc; A spiral blade is installed on the side of the first rotating shaft and below the dispersion disk, and the bottom of the spiral blade extends to the bottom end of the tubular channel. A second motor connected to the first rotating shaft is installed at the bottom of the tubular channel, and the first rotating shaft is rotatably connected to the bottom of the tubular channel.

2. A vacuum tank for high-speed dispersion of coating according to claim 1, characterized in that: A mounting seat is installed on one side of the tank body, and the vacuum pump is fixed on the mounting seat. A control box is installed on the side of the tank body, and a controller is arranged in the control box. A pressure sensor is installed on the inner surface of the top cover, and the controller is connected to the pressure sensor and the second electric control valve respectively through data lines; wherein, the first motor and the second motor are connected to the controller through wires.

3. A vacuum tank for high-speed dispersion of coating according to claim 1, characterized in that: A connecting sleeve is coaxially arranged at the lower part of the tank body, which is sleeved on the spiral blades. There is a gap between the bottom of the connecting sleeve and the bottom end of the tank body, and the outer surface of the connecting sleeve is fixed to the inner surface of the tank body by at least two brackets.

4. A vacuum tank for high-speed dispersion of coating according to claim 3, characterized in that: The inner surfaces of the connecting sleeve and the tubular passage are both clearance-matched with the edge of the spiral blade.

5. A vacuum tank for high-speed dispersion of coating according to claim 1, characterized in that: A plurality of connecting rods are equidistantly connected between the two connecting rings, each connecting rod is coaxially arranged with the connecting ring, and both ends of each connecting rod are fastened to the two connecting rings through nuts.

6. A vacuum tank for high-speed dispersion of coating according to claim 1, characterized in that: Each pair of dispersion blades is curved in an "L" or "S" shape, and the curvature directions of two adjacent dispersion blades are opposite.

7. A vacuum tank for high-speed dispersion of coating according to claim 1, characterized in that: A feed port is provided on one side of the top cover, a cover plate is provided in the feed port, one side of the cover plate is connected to the feed port through a hinge seat, the other side of the cover plate is fixed to the feed port through a lock, and the cover plate is sealed with the feed port.

8. A vacuum tank for high-speed dispersion of coating according to claim 2, characterized in that: A discharge pipe is installed at one side of the bottom of the tubular channel, a first electric-controlled valve is installed on the discharge pipe, and the first electric-controlled valve is connected to the controller through a data line.

9. A vacuum tank for high-speed dispersion of coating according to claim 2, characterized in that: A plurality of legs are coaxially mounted on the bottom edge of the tank body, and the second motor is located between the legs.

10. A vacuum tank for high-speed dispersion of coating according to any one of claims 1 to 9, characterized in that: The first rotating shaft and the second rotating shaft have opposite rotation directions.

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