An anti-skinning agent addition device

Abstract

The utility model discloses a kind of anti skinning agent adding devices, it is related to paint production field, to solve the poor mobility due to the viscosity of paint coating itself in prior art is larger, the mixing tank is only through the low mixing efficiency of paint and anti skinning agent by mixer rotation to the problem of poor mobility. The middle portion of the mixing tank inside is rotatably connected with rotating shaft, a plurality of stirring rods are fixedly connected to the first rotating column side end surface annular array, a plurality of oblique stirring pieces are fixedly connected to the second rotating column side end surface annular array, the middle portion lower end annular array of the mixing tank outer wall is fixedly connected with four fixed tubes, heating rod tail connecting column is inserted in the four fixed tubes, one end of the heating rod tail connecting column is fixedly connected with constant-temperature heating rod in fixed tube, by setting the multilayer stirring structure of stirring rod and oblique stirring piece, constant-temperature heating is carried out simultaneously using constant-temperature heating rod, the mixing efficiency of anti skinning agent and paint is significantly improved.

Description

Technical Field

[0001] This utility model relates to the field of coating production, specifically to an anti-skinning agent addition device. Background Technology

[0002] Anti-skinning agents are chemical additives used to prevent the formation of a skin (oxidized drying film) on the surface of coatings during storage or use. They primarily maintain material flowability by delaying surface oxidative polymerization reactions or forming a protective film, ensuring product openability and application quality. Common types include phenols (such as hydroquinone), oximes (such as methyl ethyl ketone oxime), and antioxidants. They can reversibly react with drying agents in the system, temporarily inhibiting the film-forming process. Once applied, they quickly evaporate, restoring drying performance. Anti-skinning agent additives are required during coating production to add the anti-skinning agent to the coating.

[0003] For example, authorization announcement number CN219111358U discloses a coating anti-skinning agent addition device, relating to the field of coating production technology. It includes a storage tank, a weighing tank, a mixing tank, a connecting pipe, and valves. The storage tank, weighing tank, and mixing tank are sequentially connected by the connecting pipe. The storage tank stores the anti-skinning agent. The weighing tank is located above the mixing tank and is used to weigh the mass of the anti-skinning agent to be added to the mixing tank. The mixing tank is used to mix the anti-skinning agent and the coating. The valves are connected to the pipe structures of the storage tank and the mixing tank, respectively, connecting them to the outside environment. This invention is used to add anti-skinning agents when mixing coatings. Furthermore, this device can place the anti-skinning agent under vacuum storage conditions to prevent oxidation and failure. Simultaneously, the device can control the amount of anti-skinning agent added to avoid problems such as difficulty in coating curing.

[0004] Because paints and coatings have high viscosity and poor flowability, the mixing efficiency of the above-mentioned technology is low as the mixing tank only relies on the rotation of the agitator to mix the paint and the anti-skinning agent. Therefore, there is an urgent need in the market to develop an anti-skinning agent addition device to help people solve the existing problems. Utility Model Content

[0005] The purpose of this invention is to provide an anti-skinning agent addition device to solve the problem mentioned in the background art that the high viscosity of paint coatings leads to poor fluidity, and the existing technology has low mixing efficiency of paint and anti-skinning agent by simply rotating the agitator in the mixing tank.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an anti-skinning agent addition device, comprising a mixing tank, wherein the lower end of the mixing tank is provided with a conical bottom, a rotating shaft is rotatably connected to the middle of the mixing tank, a first rotating column is fixedly connected to the lower end of the middle of the rotating shaft, a plurality of stirring rods are fixedly connected to the side end face of the first rotating column in a ring array, a second rotating column is fixedly connected to the rotating shaft at both the upper and lower ends of the first rotating column, a plurality of inclined stirring blades are fixedly connected to the side end face of the second rotating column in a ring array, and four fixed tubes are fixedly connected to the lower end of the middle of the outer wall of the mixing tank in a ring array, a heating rod tail connecting post is inserted into each of the four fixed tubes, a constant temperature heating rod is fixedly connected to one end of the heating rod tail connecting post inside the fixed tube, and one end of the constant temperature heating rod extends into the interior of the mixing tank after passing through the fixed tube.

[0007] Preferably, a driving device is fixedly connected to the middle of the upper end face of the mixing tank, a driving motor is fixedly installed inside the driving device, a limiting tube is fixedly connected to the middle of the upper end face inside the mixing tank, and the upper end of the rotating shaft extends through the middle of the limiting tube into the interior of the driving device and is connected to the output shaft of the driving motor through a coupling.

[0008] Preferably, a sealing ring is provided between the constant temperature heating rod and the inner wall of the fixed tube, and the sealing ring is fixedly connected to the inner wall of the fixed tube.

[0009] Preferably, the other end of the heating rod tail connecting column passes through the fixed tube and extends out of the mixing tank and is fixedly connected to a connecting ring, and the connecting ring is fixedly connected to the outer end face of the fixed tube by multiple screws.

[0010] Preferably, a discharge pipe is fixedly connected to the middle of the lower end of the conical bottom, and a control valve is fixedly connected to the discharge pipe.

[0011] Preferably, an anti-skinning agent injection pipe is fixedly connected to one side of the middle of the upper end face of the mixing tank, and a first quantitative delivery pump is fixedly connected to the anti-skinning agent injection pipe.

[0012] Preferably, a paint filling pipe is fixedly connected to the other side of the middle of the upper end face of the mixing tank, and a second quantitative delivery pump is fixedly connected to the paint filling pipe.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] (1) In this utility model, by setting a multi-layer stirring structure with a first rotating column and a stirring rod and a second rotating column and an inclined stirring plate, not only can radial shear stirring be achieved, but also axial vortex can be generated, so that the high viscosity coating forms an up-and-down circulating flow, which significantly improves the mixing efficiency of the anti-skinning agent and the coating.

[0015] (2) In this utility model, a constant temperature heating rod arranged in a ring array is used to heat the mixture at a constant temperature, which effectively reduces the viscosity of the coating. Combined with mechanical stirring, the mixing uniformity is further improved, which solves the problem of insufficient mixing caused by excessively high coating viscosity in traditional devices.

[0016] (3) In this utility model, the modular design of the heating rod installation structure facilitates the quick disassembly and maintenance of the constant temperature heating rod, while the setting of the sealing ring ensures the sealing performance of the mixing tank, thereby improving the reliability and service life of the equipment. Attached Figure Description

[0017] Figure 1 This is a front view of an anti-skinning agent adding device according to the present invention;

[0018] Figure 2 This is a front sectional view of the present invention;

[0019] Figure 3 This is a side sectional view of the present invention;

[0020] Figure 4 This is a detailed enlarged view of part A of this utility model.

[0021] In the diagram: 1. Mixing tank; 101. Conical bottom; 102. Discharge pipe; 103. Control valve; 104. Limiting pipe; 2. Rotating shaft; 201. First rotating column; 202. Stirring rod; 203. Second rotating column; 204. Inclined stirring blade; 3. Drive device; 301. Drive motor; 4. Anti-skinning agent injection pipe; 401. First quantitative delivery pump; 5. Coating injection pipe; 501. Second quantitative delivery pump; 6. Fixing pipe; 601. Sealing ring; 7. Heating rod tail connecting column; 701. Constant temperature heating rod; 702. Connecting ring; 703. Screw. Detailed Implementation

[0022] 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.

[0023] Please see Figure 1-4An embodiment of this utility model provides an anti-skinning agent addition device, comprising a mixing tank 1, an anti-skinning agent injection pipe 4 fixedly connected to one side of the middle of the upper end face of the mixing tank 1, a first quantitative delivery pump 401 fixedly connected to the anti-skinning agent injection pipe 4, a paint injection pipe 5 fixedly connected to the other side of the middle of the upper end face of the mixing tank 1, a second quantitative delivery pump 501 fixedly connected to the paint injection pipe 5, the paint and anti-skinning agent are respectively injected into the mixing tank 1 through the second quantitative delivery pump 501 and the first quantitative delivery pump 401 according to the ratio, a discharge pipe 102 fixedly connected to the middle of the lower end of the conical bottom 101, a control valve 103 fixedly connected to the discharge pipe 102, when the paint and anti-skinning agent in the mixing tank 1 are mixed, the discharge is discharged through the discharge pipe 102 by opening the control valve 103.

[0024] Please see Figure 2 and Figure 3 The mixing tank 1 has a conical bottom 101 at its lower end. A rotating shaft 2 is rotatably connected to the middle of the mixing tank 1. A first rotating column 201 is fixedly connected to the lower middle end of the rotating shaft 2. Multiple stirring rods 202 are fixedly connected to the side end face of the first rotating column 201 in a ring array. A second rotating column 203 is fixedly connected to the rotating shaft 2 at both the upper and lower ends of the first rotating column 201. Multiple inclined stirring blades 204 are fixedly connected to the side end face of the second rotating column 203 in a ring array. Four fixed tubes 6 are fixedly connected to the lower middle middle of the outer wall of the mixing tank 1 in a ring array. A heating rod tail connecting post 7 is inserted into each of the four fixed tubes 6. A constant temperature heating rod 701 is fixedly connected to one end of the heating rod tail connecting post 7 inside the fixed tube 6. One end of the constant temperature heating rod 701 passes through a solid tube. The fixed pipe 6 extends into the mixing tank 1. The rotating shaft 2 drives the first rotating column 201 and two second rotating columns 203 to rotate synchronously. The first rotating column 201 drives multiple stirring rods 202 to stir and mix the paint and anti-skinning agent. At the same time, the two second rotating columns 203 drive multiple inclined stirring blades 204 to rotate and stir and mix the paint and anti-skinning agent. This causes the mixture to circulate inside the mixing tank 1, increasing the fluidity of the mixture and improving the mixing efficiency. While the paint and anti-skinning agent are being stirred inside the mixing tank 1, the mixture is heated to a constant temperature of 40 degrees Celsius by four constant temperature heating rods 701 (at a temperature of 40 degrees Celsius, the viscosity of the paint is only half that at room temperature), which improves the fluidity of the mixture and ensures that the paint and anti-skinning agent are fully and evenly mixed.

[0025] Please see Figure 2 A drive device 3 is fixedly connected to the middle of the upper end face of the mixing tank 1. A drive motor 301 is fixedly installed inside the drive device 3. A limit tube 104 is fixedly connected to the middle of the upper end face inside the mixing tank 1. The upper end of the rotating shaft 2 passes through the middle of the limit tube 104 and extends into the drive device 3 and is connected to the output shaft of the drive motor 301 through a coupling. The drive motor 301 drives the rotating shaft 2 to rotate.

[0026] Please see Figure 3 and Figure 4 A sealing ring 601 is provided between the constant temperature heating rod 701 and the inner wall of the fixed tube 6 to seal the constant temperature heating rod 701 and the fixed tube 6 to prevent the mixture from overflowing. The sealing ring 601 is fixedly connected to the inner wall of the fixed tube 6. The other end of the heating rod tail connecting post 7 passes through the fixed tube 6 and extends out of the mixing tank 1 and is fixedly connected to a connecting ring 702. The connecting ring 702 is fixedly connected to the outer end face of the fixed tube 6 by multiple screws 703. By removing the multiple screws 703, the heating rod tail connecting post 7 can be pulled to remove the constant temperature heating rod 701 from the mixing tank 1 for maintenance and replacement.

[0027] Working Principle: In use, the coating is first metered into the mixing tank 1 via the coating injection pipe 5 through the second metering pump 501. Simultaneously, the anti-skinning agent is added to the mixing tank 1 according to the specified ratio via the anti-skinning agent injection pipe 4 through the first metering pump 401. The drive motor 301 is started, driving the rotating shaft 2 to rotate, causing the stirring rod 202 on the first rotating column 201 and the inclined stirring blades 204 on the two second rotating columns 203 to rotate synchronously. The stirring rod 202 performs radial shearing and stirring of the mixture, while the inclined stirring blades 204 generate axial vortices during rotation, promoting the upward and downward circulation of materials within the tank. At the same time, four constant-temperature heating rods 701 maintain a constant temperature of 40℃, effectively reducing the coating viscosity. Through the synergistic effect of mechanical stirring and temperature control, the high-viscosity coating and anti-skinning agent are rapidly and uniformly mixed in a dynamic thermal environment. After mixing is complete, the control valve 103 is opened, allowing the finished product to be discharged through the discharge pipe 102 at the conical bottom 101. When maintenance is required, the thermostatic heating rod 701 can be completely removed and replaced by removing screw 703.

[0028] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. An anti-skinning agent adding device, comprising a mixing tank (1), characterized in that: The mixing tank (1) has a conical bottom (101) at its lower end. A rotating shaft (2) is rotatably connected to the middle of the mixing tank (1). A first rotating column (201) is fixedly connected to the lower end of the middle of the rotating shaft (2). Multiple stirring rods (202) are fixedly connected to the side end face of the first rotating column (201) in a circular array. A second rotating column (203) is fixedly connected to the rotating shaft (2) at both the upper and lower ends of the first rotating column (201). 03) Multiple inclined stirring blades (204) are fixedly connected to the side end face in an annular array. Four fixed tubes (6) are fixedly connected to the lower middle part of the outer wall of the stirring tank (1) in an annular array. Each of the four fixed tubes (6) has a heating rod tail connecting column (7) inserted inside. One end of the heating rod tail connecting column (7) is fixedly connected to a constant temperature heating rod (701) inside the fixed tube (6). One end of the constant temperature heating rod (701) passes through the fixed tube (6) and extends into the stirring tank (1).

2. The anti-skinning agent adding device according to claim 1, characterized in that: A drive device (3) is fixedly connected to the middle of the upper end face of the mixing tank (1). A drive motor (301) is fixedly installed inside the drive device (3). A limit tube (104) is fixedly connected to the middle of the upper end face inside the mixing tank (1). The upper end of the rotating shaft (2) passes through the middle of the limit tube (104) and extends into the drive device (3), and is connected to the output shaft of the drive motor (301) through a coupling.

3. The anti-skinning agent adding device according to claim 1, characterized in that: A sealing ring (601) is provided between the constant temperature heating rod (701) and the inner wall of the fixed tube (6), and the sealing ring (601) is fixedly connected to the inner wall of the fixed tube (6).

4. The anti-skinning agent adding device according to claim 1, characterized in that: The other end of the heating rod tail connecting post (7) passes through the fixed tube (6) and extends out of the stirring tank (1) and is fixedly connected to a connecting ring (702). The connecting ring (702) is fixedly connected to the outer end face of the fixed tube (6) by multiple screws (703).

5. The anti-skinning agent adding device according to claim 1, characterized in that: A discharge pipe (102) is fixedly connected to the middle of the lower end of the conical bottom (101), and a control valve (103) is fixedly connected to the discharge pipe (102).

6. The anti-skinning agent adding device according to claim 1, characterized in that: An anti-skinning agent injection pipe (4) is fixedly connected to one side of the middle of the upper end face of the mixing tank (1), and a first quantitative delivery pump (401) is fixedly connected to the anti-skinning agent injection pipe (4).

7. The anti-skinning agent adding device according to claim 1, characterized in that: A paint filling pipe (5) is fixedly connected to the other side of the middle of the upper end face of the mixing tank (1), and a second quantitative delivery pump (501) is fixedly connected to the paint filling pipe (5).

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