A special stirring and dispersing machine for coating production

Abstract

The present invention belongs to the field of coating equipment, specifically a special stirring and dispersing machine for coating production, including a frame 1, a stirring tank 2, a stirring shaft 3, a stirring motor 4, a stirring support frame 5, a bearing seat 6, a horizontal beam 7, a circular platform 8, a support column 9 and a guide column 10, an inner stirring shaft 11, an inner stirring motor 12, a lifting crossbar 13, a lifting hydraulic cylinder 14, a blade fixing frame 15, a radial crossbar 16, an axial vertical rod 17, a stirring spiral 18, a coating scraper 19, an inner stirring spiral 20, a shaft support seat 21, and a slip ring 22; the stirring structure is a: the stirring shaft 3 drives the blade fixing frame 15 to stir the outer layer, and the inner stirring shaft 11 drives the inner stirring spiral 20 to stir the inner layer; or b: the inner stirring shaft 11 drives the blade fixing frame 15 to stir the outer layer, and the stirring shaft 3 drives the stirring spiral 20 to stir the inner layer. The three-dimensional strong circulation dispersion mode of the present invention is efficient and stable, safe and fast to clean, and is suitable for automated industrial production.

Description

Technical Field

[0001] The invention belongs to the field of coating production equipment, in particular to a special stirring and dispersing machine for coating production. Background Art

[0002] Disperser, in a broad sense, is a type of mixer. Since the use of high-speed agitators (such as disc serrated agitators) can form strong turbulence locally, it usually has a strong dispersing and emulsifying effect on materials. Therefore, this type of high-speed mixer is also called a disperser. Dispersers are mainly divided into lifting type dispersers and kettle dispersers. Lifting type dispersers can be divided into hydraulic lifting dispersers, pneumatic lifting dispersers, hand-cranked lifting dispersers, etc. according to the lifting method.

[0003] Paint is composed of resin base material (liquid), pigments and fillers (solid), solvents (liquid), and additives. In production, the pigments and fillers need to be evenly dispersed in the resin base material to form a liquid paint slurry. The paint production process refers to the material transfer or transformation process of processing raw materials and semi-finished products into finished paint products. The stirring and dispersing process is the process of mixing various raw materials and dispersing various components such as pigments and fillers to the corresponding required fineness through shear force, and evenly dispersing them in the entire medium. Therefore, the key equipment in paint production is the disperser equipment.

[0004] In recent years, the mixing and dispersing equipment used in paint production has not changed much in terms of mixing methods, structural optimization design, etc. With the increase in labor costs, the increase in the diversified small-batch production needs of paint users, and the emergence of user-customized products, the following defects of existing paint production mixing and dispersing machines are becoming more and more obvious:

[0005] 1. The shearing and dispersing effect of the coating is not good, and the production efficiency is low. As a result, the production time required to achieve qualified products is relatively long, and it cannot meet the customer's demand for small batches and fast supply, with high time cost and high labor cost.

[0006] 2. When switching between different types of paint production, cleaning is difficult and unsafe. Since it is necessary to manually enter the mixing tank to clean the residual paint, it is impossible to clean quickly and thoroughly, and the paint is prone to sticking. Therefore, the cleaning efficiency is low, the effective production time is greatly reduced, and the labor cost is high.

[0007] The fundamental reason for the above problems is that the working principle design of stirring and dispersing is not ideal, and there are defects in the fixing method of the stirring mechanism in the disperser. Most existing dispersers adopt a dispersion disc or an outer spiral stirring design structure, which forms a limited shear force or a limited shear area, mainly concentrated in a local area, lacking or even no overall three-dimensional circulation effect. The stirring mechanism is inseparably fixed to the base or adopts a bulky single-arm hydraulic lifting method, which makes it difficult to conveniently lift the disperser to a safe operating space when cleaning. If the stirring parts are not cleaned thoroughly, long-term operation will cause the stirring parts to adhere to the paint, reducing the stirring efficiency and product quality.

[0008] There is a need in the market for a new special stirring and dispersing machine for coating production that can overcome the above-mentioned defects. Summary of the invention

[0009] In order to solve the above-mentioned problems existing in the prior art, the present invention provides a special stirring and dispersing machine for paint production, which has good shearing and dispersing effect on the paint and high dispersion efficiency. It can conveniently, safely and efficiently clean the residual paint, thereby greatly improving the overall efficiency of paint production and achieving good and stable product quality.

[0010] The technical solution of the present invention is:

[0011] A special stirring and dispersing machine for coating production, comprising a frame 1, a stirring tank 2, a stirring shaft 3, a stirring motor 4, and a stirring support frame 5; the frame 1 is a square three-dimensional frame, provided with an upper and lower two-layer annular support platform; the stirring tank 2 is a barrel with a conical bottom and a discharge port at the bottom, fixed to the inner side of the upper and lower two-layer annular support platform of the frame 1; the stirring shaft 3 is driven by the stirring motor 4; the stirring shaft 3 is fixed in the bearing seat 6 of the stirring support frame 5 through a bearing, and the stirring motor 4 is connected to the upper end of the bearing seat 6 through a flange; the stirring support frame 5 includes a bearing seat 6, a horizontal The outer periphery of the bearing seat 6 is fixedly connected to the horizontal beam 7, the horizontal beam 7 is fixed in the horizontal positioning groove on the circular platform 8, and the support column 9 and the guide column 10 are arranged between the bottom surface of the circular platform 8 and the upper annular support platform of the frame 1; the stirring shaft 3 is a hollow shaft, and an inner stirring shaft 11 is arranged inside it. The inner stirring shaft 11 is driven by an inner stirring motor 12, and the inner stirring motor 12 is fixedly connected to the upper end of the stirring motor 4 through a flange; the two horizontal beams 7 are arranged in a cross shape and fixed with two lifting cross bars 13 The two lifting cross bars 13 are respectively connected to the two lifting hydraulic cylinders 14, and the two lifting hydraulic cylinders 14 are arranged between the bottom surface of the circular platform 8 and the upper annular support platform of the frame 1; the horizontal cross beam 7 and the circular platform 8 are fixed in a detachable manner, so that the stirring support frame (5) can be lifted and lowered by the lifting hydraulic cylinders 14, so that the stirring shaft 3 and the inner stirring shaft 11 can be lifted and lowered; the blade fixing frame 15 is a rotating frame, and its upper and lower ends are respectively composed of radial cross bars 16, and the upper and lower ends are fixedly connected by axial vertical bars 17; the blade fixing frame 15 The stirring screw 18 is fixedly connected with the stirring screw 18 through its radial cross bar 16 and axial vertical bar 17. The stirring screw 18 is a ribbon spiral, and its outer circle side is close to the inner side of the barrel wall of the stirring tank 2; the paint scraper 19 is symmetrically arranged on the lower side of the radial cross bar 16 at the lower end of the paddle fixing frame 15, and the paint scraper 19 is close to the conical bottom surface of the stirring tank 2 to fully stir the low-layer paint mixture; an axis support seat 21 is fixedly arranged above the discharge port of the stirring tank 2, and a circular groove is arranged on the upper end surface of the axis support seat 21, and a discharge hole connected to the discharge port is arranged on its side; the stirring drive mode adopts one of the two structures a and b:

[0012] a. The stirring shaft 3 is fixedly connected to the radial cross bar 16 at the upper end of the blade fixing frame 15 to drive the stirring screw 18 to stir the outer layer area, and the inner stirring shaft 11 is fixedly connected to the inner stirring screw 20 to drive it to stir the inner layer area. The shaft head at the lower end of the inner stirring shaft 11 is placed in the circular groove on the shaft support seat 21 for rotation; the radial cross bar 16 at the lower end of the blade fixing frame 15 is fixed to the outer ring of the slip ring 22, and the inner ring of the slip ring 22 is sleeved on the inner stirring shaft 11 for rotation;

[0013] b. The lower end of the inner stirring shaft 11 is fixedly connected to the radial cross bar 16 at the lower end of the blade fixing frame 15 to drive the stirring screw 18 to stir the outer layer area. The stirring shaft 3 is fixedly connected to the inner stirring screw 20 to drive it to stir the inner layer area. The shaft head at the lower end of the inner stirring shaft 11 is placed in a circular groove on the shaft support seat 21 for rotation; the radial cross bar 16 at the upper end of the blade fixing frame 15 is fixed to the outer ring of the slip ring 22, and the inner ring of the slip ring 22 is sleeved on the stirring shaft 3 for rotation.

[0014] The rotation direction and horizontal inclination angle of the inner stirring screw 20 are set to correspond to those of the stirring screw 18 so as to achieve the reverse propulsion of the two in the axial direction.

[0015] The innovative points of the technical solution of the present invention mainly lie in:

[0016] 1. Different stirring drives are used for the inner and outer pages respectively, and the rotation direction of the inner stirring screw 20 and the horizontal inclination angle of the stirring working surface are deliberately set to the opposite direction corresponding to the stirring screw 18, so that a high-speed three-dimensional strong circulation stirring mode can be well realized, that is, while maintaining the conventional horizontal flow stirring in the stirring tank 2, a high-speed, three-dimensional strong circulation stirring and dispersion can be formed between the outer layer area and the inner layer area of ​​the coating liquid. Compared with the previous weak circulation mode based on horizontal stirring, the dispersion quality and dispersion efficiency can be greatly improved.

[0017] 2. The present invention provides two stirring structures a and b to achieve the above-mentioned high-speed three-dimensional strong circulation stirring effect: structure a is that the outer shaft drives the outer spiral stirring, and the inner shaft drives the inner spiral stirring; structure b is that the outer shaft drives the inner spiral stirring, and the inner shaft drives the outer spiral stirring. Both stirring driving modes can well achieve high-speed, three-dimensional strong circulation mode stirring and dispersion.

[0018] 3. In order to improve the function of lifting the stirring shaft for convenient cleaning, the present invention adopts a double lifting hydraulic cylinder (14) and adds a guide column (10) structural design, which makes the stirring mechanism stable during stirring operation and light and safe during cleaning, thereby significantly improving the cleaning efficiency and safety of the cleaning operation.

[0019] The present invention also provides the following preferred technical solutions, which can be selected and implemented according to the situation:

[0020] Preferred solution one, in the structure a, the fixed connection method between the stirring shaft 3 and the radial cross bar 16 at the upper end of the blade fixing frame 15 is that the stirring shaft 3 is first fixedly connected to the sleeve 23, and the radial cross bar 16 is then fixedly connected to the outer ring or lower bottom surface of the sleeve 23.

[0021] Preferred solution two, in the structure b, the fixed connection method between the inner stirring shaft 11 and the radial cross bar 16 at the lower end of the blade fixing frame 15 is that the inner stirring shaft 11 is first fixedly connected to the sleeve 23, and the radial cross bar 16 is then fixedly connected to the outer ring of the sleeve 23.

[0022] In preferred solution three, the radial cross bar 16 and / or the axial vertical bar 17 are in the shape of a plate, and the plate surface is perpendicular to the rotation direction of the blade fixing frame 15 .

[0023] In preferred solution 4, the plate surface of the radial cross bar 16 is a tile-like arc.

[0024] In preferred solution five, the axial vertical rod 17 of the blade fixing frame 15 is arranged in two layers, inner and outer, respectively located in the inner layer area and the outer layer area, and the stirring screw 18 is only fixedly connected to the axial vertical rod 17 of the outer layer.

[0025] Preferred solution six, the stirring motor 4 is a reduction motor or a speed-adjustable motor.

[0026] Preferred solution seven, the two horizontal beams 7 of the stirring support frame 5 are arranged in a cross shape.

[0027] Preferred solution eight is also provided with a microcomputer automatic control device, including an input part, a central control unit, an output part, a storage part, an actuator and control software including a conventional control algorithm.

[0028] The beneficial effects of the technical solution of the present invention are:

[0029] 1. In terms of stirring mode, a double stirring mode of reverse pushing is creatively designed between the inner and outer regions. While the liquid in the stirring tank 2 maintains the conventional horizontal flow stirring, it can also achieve high-speed, three-dimensional strong circulation mode stirring and dispersion between the inner and outer regions. The dispersion quality and dispersion efficiency can be greatly improved, which is suitable for industrial promotion and application.

[0030] 2. By adopting the structural design of the lifting stirring shaft, the stirring shaft and stirring screw are lifted to the top of the stirring barrel by the lifting hydraulic cylinder during cleaning. The residual paint on the barrel wall, shaft, frame, blades, etc. after discharging can be easily cleaned by high-pressure spraying. The dead corners can be thoroughly cleaned, and the waste liquid is directly discharged through the discharge port. The cleaning work efficiency is high, and workers do not need to enter the barrel for operation, which reduces the harm of harmful gases to people and greatly improves the safety of operation.

[0031] 3. The performance of the equipment of the present invention is greatly improved, and it is meaningful to realize further industrial automation control. Due to the limitation of equipment performance, the speed change of the existing equipment has an insufficient effect on the refreshing efficiency and quality, and the use of automatic control lacks practical effect. In addition, it is difficult to clean when changing the formula, and manual cleaning is indispensable, so the effect of realizing industrial automation control is even less obvious. Therefore, the existing paint stirring and dispersing machine basically does not use automatic control technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1It is a structural schematic diagram of the present invention;

[0033] Figure 2 This is a schematic diagram of a tank body cut away in the structure mode a of the present invention;

[0034] Figure 3 This is a schematic diagram of the stirring structure of the structural mode a of the present invention;

[0035] Figure 4 This is a schematic diagram of a tank body cut away in accordance with the structure b of the present invention;

[0036] Figure 5 This is a schematic diagram of the stirring structure of the structural mode b of the present invention;

[0037] In the figure: 1-frame, 2-mixing tank, 3-mixing shaft, 4-mixing motor, 5-mixing support frame, 6-bearing seat, 7-horizontal beam, 8-circular platform, 9-support column, 10-guide column, 11-inner mixing shaft, 12-inner mixing motor, 13-lifting cross bar, 14-lifting hydraulic cylinder, 15-blade fixing frame, 16-radial cross bar, 17-axial vertical bar, 18-mixing spiral, 19-paint scraper, 20-inner mixing spiral, 21-shaft support seat, 22-slip ring, 23-sleeve. DETAILED DESCRIPTION

[0038] In order to enable those skilled in the art to better understand the technical solution of the present invention, Figure 1-4 The present invention is further described in detail in the following embodiments. In the embodiments, for the convenience of description, the relative position relationship of each component is described based on the Figure 1 The layout is described in detail, such as the positional relationship of top, bottom, left, right, etc. is based on the instructions attached to the manual. Figure 1 The layout direction is determined by the

[0039] Embodiment 1:

[0040] like Figure 1 , Figure 2 and Figure 3The illustrated embodiment shows a special stirring and dispersing machine for coating production, comprising a frame 1, a stirring tank 2, a stirring shaft 3, a stirring motor 4, and a stirring support frame 5; the frame 1 is a square three-dimensional frame, provided with an upper and lower annular support platform; the stirring tank 2 is a barrel with a conical bottom and a discharge port at the bottom, fixed to the inner sides of the upper and lower annular support platforms of the frame 1; the stirring shaft 3 is driven by the stirring motor 4; the stirring shaft 3 is fixed in the bearing seat 6 of the stirring support frame 5 through a bearing, and the stirring motor 4 is connected to the upper end of the bearing seat 6 through a flange; the stirring support frame 5 comprises a bearing seat 6, a horizontal beam 7, a circular platform 8, a support column 9 and a guide column 10, and the outer periphery of the bearing seat 6 is aligned with the horizontal beam 7. The beam 7 is fixedly connected, the horizontal beam 7 is fixed in the horizontal positioning groove on the circular platform 8, the support column 9 and the guide column 10 are arranged between the lower bottom surface of the circular platform 8 and the upper annular support platform of the frame 1; the stirring shaft 3 is a hollow shaft, and an inner stirring shaft 11 is arranged inside it. The inner stirring shaft 11 is driven by an inner stirring motor 12, and the inner stirring motor 12 is fixedly connected to the upper end of the stirring motor 4 through a flange; the two horizontal beams 7 are arranged in a cross shape and are fixedly connected to two lifting cross bars 13, and the two lifting cross bars 13 are respectively connected to two lifting hydraulic cylinders 14, and the two lifting hydraulic cylinders 14 are arranged between the lower bottom surface of the circular platform 8 and the upper annular support platform of the frame 1; the horizontal beam 7 and the circular platform 8 are fixed in a detachable manner, so that the stirring support frame (5) can be lifted and lowered by the lifting hydraulic cylinder 14, so that the stirring shaft 3 and the inner stirring shaft 11 can be lifted and lowered; the blade fixing frame 15 is a rotating frame, and its upper and lower ends are respectively composed of radial cross bars 16, and the upper and lower ends are fixedly connected by an axial vertical rod 17; the blade fixing frame 15 is fixedly connected to the stirring screw 18 through its radial cross bars 16 and axial vertical rods 17, and the stirring screw 18 is a ribbon spiral, and its outer circle side is close to the inner side of the barrel wall of the stirring tank 2; the paint scraper 19 is symmetrically arranged on the lower side of the radial cross bar 16 at the lower end of the blade fixing frame 15, and the paint scraper 19 is close to the conical bottom surface of the stirring tank 2 to prevent the stirring tank 2 from being damaged. Fully stir the low-layer coating mixture; an axis support seat 21 is fixedly arranged above the discharge port of the stirring tank 2, and a circular groove is arranged on the upper end surface of the axis support seat 21, and a discharge hole connected to the discharge port is arranged on its side; the stirring drive method adopts structure a: the stirring shaft 3 is fixedly connected to the radial cross bar 16 at the upper end of the blade fixing frame 15 to drive the stirring screw 18 to stir the outer layer area, the inner stirring shaft 11 is fixedly connected to the inner stirring screw 20 to drive it to stir the inner layer area, and the shaft head at the lower end of the inner stirring shaft 11 is placed in the circular groove on the axis support seat 21 for rotation; the radial cross bar 16 at the lower end of the blade fixing frame 15 is fixed to the outer ring of the slip ring 22, and the inner ring of the slip ring 22 is sleeved on the inner stirring shaft 11 for rotation.

[0041] In this embodiment, the fixed connection between the stirring shaft 3 and the radial cross bar 16 at the upper end of the blade fixing frame 15 in the structure a is that the stirring shaft 3 is first fixedly connected to the sleeve 23, and the radial cross bar 16 is then fixedly connected to the outer ring or lower bottom surface of the sleeve 23. The radial cross bar 16 and / or the axial vertical bar 17 cross bar are plate-shaped, and the plate surface is perpendicular to the rotation direction of the blade fixing frame 15. The plate surface of the radial cross bar 16 is a tile-shaped arc. The axial vertical bar 17 of the blade fixing frame 15 is arranged as an inner and outer layer, respectively located in the inner layer area and the outer layer area, and the stirring spiral 18 is only fixedly connected to the axial vertical bar 17 of the outer layer. The stirring motor 4 is a reduction motor. The two horizontal beams 7 of the stirring support frame 5 are arranged in a cross shape. This embodiment is also provided with a microcomputer automatic control device, including an input part, a central control unit, an output part, a storage part, an actuator, and a control software containing a conventional control algorithm.

[0042] Compared with the prior art, the quality of this embodiment is faster and more stable, and the efficiency is increased by 80%. At the same time, the mixing operation equipment is stable, the cleaning operation is safe, and the cleaning efficiency is significantly improved.

[0043] Embodiment 2:

[0044] like Figure 1 , Figure 4 and Figure 5The illustrated embodiment shows a special stirring and dispersing machine for coating production, comprising a frame 1, a stirring tank 2, a stirring shaft 3, a stirring motor 4, and a stirring support frame 5; the frame 1 is a square three-dimensional frame, provided with an upper and lower annular support platform; the stirring tank 2 is a barrel with a conical bottom and a discharge port at the bottom, fixed to the inner sides of the upper and lower annular support platforms of the frame 1; the stirring shaft 3 is driven by the stirring motor 4; the stirring shaft 3 is fixed in the bearing seat 6 of the stirring support frame 5 through a bearing, and the stirring motor 4 is connected to the upper end of the bearing seat 6 through a flange; the stirring support frame 5 comprises a bearing seat 6, a horizontal beam 7, a circular platform 8, a support column 9 and a guide column 10, and the outer periphery of the bearing seat 6 is aligned with the horizontal beam 7. The beam 7 is fixedly connected, the horizontal beam 7 is fixed in the horizontal positioning groove on the circular platform 8, the support column 9 and the guide column 10 are arranged between the lower bottom surface of the circular platform 8 and the upper annular support platform of the frame 1; the stirring shaft 3 is a hollow shaft, and an inner stirring shaft 11 is arranged inside it. The inner stirring shaft 11 is driven by an inner stirring motor 12, and the inner stirring motor 12 is fixedly connected to the upper end of the stirring motor 4 through a flange; the two horizontal beams 7 are arranged in a cross shape and are fixedly connected to two lifting cross bars 13, and the two lifting cross bars 13 are respectively connected to two lifting hydraulic cylinders 14, and the two lifting hydraulic cylinders 14 are arranged between the lower bottom surface of the circular platform 8 and the upper annular support platform of the frame 1; the horizontal beam 7 The paddle fixing frame 15 is detachably fixed to the circular platform 8, so that the stirring support frame (5) can be lifted and lowered by the lifting hydraulic cylinder 14, thereby lifting and lowering the stirring shaft 3 and the inner stirring shaft 11; the paddle fixing frame 15 is a rotating frame, the upper and lower ends of which are respectively composed of radial cross bars 16, and the upper and lower ends are fixedly connected by an axial vertical rod 17; the paddle fixing frame 15 is fixedly connected to the stirring screw 18 through its radial cross bars 16 and axial vertical rods 17, and the stirring screw 18 is a ribbon-shaped spiral, and its outer circle side is close to the inner side of the barrel wall of the stirring tank 2; the paint scraper 19 is symmetrically arranged on the lower side of the radial cross bar 16 at the lower end of the paddle fixing frame 15, and the paint scraper 19 is close to the conical bottom surface of the stirring tank 2 to fill The lower layer coating mixture is stirred separately; an axle support seat 21 is fixedly arranged above the discharge port of the stirring tank 2, and a circular groove is arranged on the upper end surface of the axle support seat 21, and a discharge hole connected to the discharge port is arranged on the side thereof; the stirring drive mode adopts structure b: the lower end of the inner stirring shaft 11 is fixedly connected to the radial cross bar 16 at the lower end of the blade fixing frame 15 to drive the stirring screw 18 to stir the outer layer area, the stirring shaft 3 is fixedly connected to the inner stirring screw 20 to drive it to stir the inner layer area, and the shaft head at the lower end of the inner stirring shaft 11 is placed in the circular groove on the axle support seat 21 for rotation; the radial cross bar 16 at the upper end of the blade fixing frame 15 is fixed to the outer ring of the slip ring 22, and the inner ring of the slip ring 22 is sleeved on the stirring shaft 3 for rotation.

[0045] In this embodiment, the fixed connection method between the inner stirring shaft 11 and the radial cross bar 16 at the lower end of the blade fixing frame 15 in the b structure is that the inner stirring shaft 11 is first fixedly connected to the sleeve 23, and the radial cross bar 16 is then fixedly connected to the outer ring of the sleeve 23. The radial cross bar 16 and / or the axial vertical bar 17 cross bar are plate-shaped, and the plate surface is perpendicular to the rotation direction of the blade fixing frame 15. The plate surface of the radial cross bar 16 is a tile-shaped arc. The axial vertical bar 17 of the blade fixing frame 15 is arranged in an inner and outer layers, respectively located in the inner layer area and the outer layer area, and the stirring spiral 18 is only fixedly connected to the outer layer axial vertical bar 17. The stirring motor 4 is an adjustable speed motor. The two horizontal beams 7 of the stirring support frame 5 are arranged in a cross shape.

[0046] Compared with the prior art, the quality of this embodiment reaches the standard faster and more stably, and the efficiency is increased by 50%. At the same time, the mixing operation equipment is stable, the cleaning operation is convenient and safe, and the cleaning efficiency is significantly improved.

[0047] It is to be understood that the above embodiments are merely exemplary embodiments for illustrating the principles of the present invention, but the present invention is not limited thereto, and specific embodiments can be determined according to the technical solution of the present invention and actual conditions. For those skilled in the art, various modifications and improvements can be made without departing from the spirit and essence of the present invention, and these added modifications and improvements should also be regarded as the protection scope of the present invention.

Claims

1. A special stirring and dispersing machine for coating production, comprising a frame (1), a stirring tank (2), a stirring shaft (3), a stirring motor (4), and a stirring support frame (5); the frame (1) is a square three-dimensional frame, provided with an upper and lower annular support platform; the stirring tank (2) is a barrel with a conical bottom and a discharge port at the bottom, fixed to the inner side of the upper and lower annular support platforms of the frame (1); the stirring shaft (3) is driven by the stirring motor (4); the stirring shaft (3) is fixed in a bearing seat (6) of the stirring support frame (5) through a bearing, and the stirring motor (4) is connected to the upper end of the bearing seat (6) through a flange; the characteristics are as follows: The stirring support frame (5) comprises a bearing seat (6), a horizontal beam (7), a circular platform (8), a support column (9) and a guide column (10); the outer periphery of the bearing seat (6) is fixedly connected to the horizontal beam (7), the horizontal beam (7) is fixed in a horizontal positioning groove on the circular platform (8), and the support column (9) and the guide column (10) are arranged between the bottom surface of the circular platform (8) and the upper annular support platform of the frame (1); the stirring shaft (3) is a hollow shaft, and an inner stirring shaft ( 11), the inner stirring shaft (11) is driven by the inner stirring motor (12), and the inner stirring motor (12) is fixedly connected to the upper end of the stirring motor (4) through a flange; two horizontal beams (7) are arranged in a cross shape and are fixedly connected to two lifting cross bars (13), and the two lifting cross bars (13) are respectively connected to two lifting hydraulic cylinders (14), and the two lifting hydraulic cylinders (14) are arranged between the lower bottom surface of the circular platform (8) and the upper annular support platform of the frame (1); the horizontal beams (7) and The circular platforms (8) are fixed in a detachable manner so that the stirring support frame (5) can be lifted and lowered by a lifting hydraulic cylinder (14), thereby lifting and lowering the stirring shaft (3) and the inner stirring shaft (11); the blade fixing frame (15) is a rotating frame, the upper and lower ends of which are respectively composed of radial cross bars (16), and the upper and lower ends are fixedly connected by an axial vertical rod (17); the blade fixing frame (15) is fixedly connected to the stirring screw (18) through its radial cross bars (16) and axial vertical rods (17). The stirring spiral (18) is in the form of a ribbon spiral, and its outer circumference is close to the inner side of the barrel wall of the stirring tank (2); a paint scraper (19) is symmetrically arranged on the lower side of the radial cross bar (16) at the lower end of the paddle fixing frame (15), and the paint scraper (19) is close to the conical bottom surface of the stirring tank (2) to fully stir the lower layer of the paint mixture; a shaft support seat (21) is fixedly arranged above the discharge port of the stirring tank (2), and a discharge hole communicating with the discharge port is arranged on the side of the shaft support seat (21); and the stirring drive mode adopts one of the two structures a and b: a. The stirring shaft (3) is fixedly connected to the radial cross bar (16) at the upper end of the blade fixing frame (15) to drive the stirring screw (18) to stir the outer layer area, and the inner stirring shaft (11) is fixedly connected to the inner stirring screw (20) to drive it to stir the inner layer area, and the shaft head at the lower end of the inner stirring shaft (11) is placed in a circular groove on the shaft support seat (21) for rotation; the radial cross bar (16) at the lower end of the blade fixing frame (15) is fixed to the outer ring of the slip ring (22), and the inner ring of the slip ring (22) is sleeved on the inner stirring shaft (11) for rotation; in the structure a, the stirring shaft (3) and the radial cross bar (16) at the upper end of the blade fixing frame (15) are fixedly connected in a manner that the stirring shaft (3) is first fixedly connected to the shaft sleeve (23), and the radial cross bar (16) is then fixedly connected to the outer ring or the lower bottom surface of the shaft sleeve (23); b. The lower end of the inner stirring shaft (11) is fixedly connected to the radial cross bar (16) at the lower end of the blade fixing frame (15) to drive the stirring screw (18) to stir the outer layer area, and the stirring shaft (3) is fixedly connected to the inner stirring screw (20) to drive it to stir the inner layer area, and the shaft head at the lower end of the inner stirring shaft (11) is placed in a circular groove on the shaft support seat (21) for rotation; the radial cross bar (16) at the upper end of the blade fixing frame (15) is fixed to the outer ring of the slip ring (22), and the inner ring of the slip ring (22) is sleeved on the stirring shaft (3) for rotation; in the structure b, the fixed connection between the inner stirring shaft (11) and the radial cross bar (16) at the lower end of the blade fixing frame (15) is that the inner stirring shaft (11) is first fixedly connected to the shaft sleeve (23), and the radial cross bar (16) is then fixedly connected to the outer ring of the shaft sleeve (23); The axial vertical rod (17) of the blade fixing frame (15) is arranged in two layers, inner and outer, respectively located in the inner layer area and the outer layer area, and the stirring spiral (18) is only fixedly connected to the axial vertical rod (17) of the outer layer; The rotation direction and horizontal inclination angle of the inner stirring screw (20) are set to correspond to those of the stirring screw (18) so as to achieve axially opposite propulsion of the two.

2. A special stirring and dispersing machine for coating production according to claim 1, characterized in that: The radial cross rod (16) and / or the axial vertical rod (17) are in the shape of a plate, and the plate surface is perpendicular to the rotation direction of the blade fixing frame (15).

3. A special stirring and dispersing machine for coating production according to claim 2, characterized in that: The plate surface of the radial cross bar (16) is in a tile-like arc shape.

4. A special stirring and dispersing machine for coating production according to claim 1, characterized in that: The stirring motor (4) is a reduction motor or a speed-adjustable motor.

5. A special stirring and dispersing machine for coating production according to claim 1, characterized in that: The two horizontal beams (7) of the stirring support frame (5) are arranged in a cross shape.

6. A special stirring and dispersing machine for coating production according to claim 1, characterized in that: A microcomputer automatic control device is also provided, which includes an input part, a central control unit, an output part, a storage part and an execution mechanism.

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