An apparatus for finely dispersing oil paint

Abstract

The present invention belongs to the technical field of pigment dispersion, and specifically refers to a fine dispersion device for oil painting pigments, including a dispersion cylinder. A cylinder cover is detachably installed at the top opening of the dispersion cylinder. A support plate is fixedly arranged on the top wall of the cylinder cover. A powder cylinder is fixedly installed on the support plate. A central shaft is rotatably connected under the top wall of the support plate. A blanking channel is arranged at the top of the central shaft. An outer sleeve is rotatably penetrated through the cylinder cover. A positive and negative rotation switching type dispersion mechanism is arranged on the central shaft, and a spreading type blanking mechanism is arranged on the outer sleeve shaft; The fluid flow mode in multiple directions can effectively eliminate local circulation dead zones. The spreading type blanking mechanism is linked with the positive and negative rotation stirring. The pigments are dispersed and blanked. The positive and negative rotation actions continuously disturb the pigments around the blanking holes to avoid blockage. By using the air pressure change at both ends of the piston cylinder, the inside of the dispersion cylinder is alternately sucked to maintain the air pressure stability inside the dispersion cylinder, and at the same time, the wall is continuously blown to prevent the pigments from sticking to the wall.

Description

Technical Field

[0001] The present invention belongs to the technical field of pigment dispersion, and specifically refers to a fine dispersion device for oil painting pigments. Background Art

[0002] The quality of oil painting pigments is crucial for oil painting creation. Its fineness, uniformity, and color expressiveness all depend on the good dispersion state of the pigments.

[0003] Traditional pigment dispersion devices have many deficiencies: First, the stirring method is single, mostly one-way stirring, which easily leads to local circulation dead zones in the stirring container, making the mixing of pigment components uneven. Especially for oil painting pigments containing various additives, components with different densities and particle sizes, uniform dispersion cannot be fully achieved, affecting the color and texture stability of the pigments. Second, the feeding process is prone to blockage. The particles in the pigments are likely to accumulate at the outlet or in the channels of the conventional feeding device due to factors such as moisture absorption and viscosity, hindering the continuous and stable entry of the pigments into the stirring area. Third, the pigments are extremely easy to stick to the wall. The pigments adhering to the inner wall of the dispersion cylinder not only cause waste of raw materials, but also increase the difficulty of equipment cleaning and maintenance costs. Moreover, the long-term accumulation of residual pigments may corrode the equipment and reduce the service life of the equipment. Fourth, the fluidity control of the pigment powder is not good. If there is no effective disturbance during the storage and transportation of the pigment powder, it is easy to agglomerate, affecting the smoothness of feeding and the subsequent stirring and dispersion effect. Summary of the Invention

[0004] To solve the above problems, the present invention provides a fine dispersion device for oil painting pigments. Through a positive and negative rotation switching dispersion mechanism, the limitation of traditional one-way stirring is broken, and the multi-directional fluid flow mode effectively eliminates local circulation dead zones. The spreading type feeding mechanism is linked with the positive and negative rotation stirring. The pigments are dispersed and fed from the feeding channel through the through hole of the outer sleeve and the feeding holes of the second stirring rod. The positive and negative rotation actions continuously disturb the pigments around the feeding holes to avoid blockage. By using the air pressure change at both ends of the piston cylinder, the inside of the dispersion cylinder is alternately sucked to maintain the air pressure stability in the dispersion cylinder, and at the same time, the wall is continuously blown to form an air film to prevent the pigments from sticking to the wall. Some of the gas in the piston cylinder is blown into the powder cylinder, and the airflow continuously disturbs the pigment powder, overcoming the agglomeration problem of the pigments caused by moisture absorption, long-term static placement, etc., and enhancing the fluidity.

[0005] To achieve the above functions, the technical solution adopted by the present invention is as follows: A fine dispersion device for oil paint, including a dispersion cylinder, a cylinder cover is detachably installed at the top opening of the dispersion cylinder, a support plate is fixedly arranged on the top wall of the cylinder cover, a powder cylinder is fixedly installed on the support plate, a central shaft is rotatably connected under the top wall of the support plate, a feeding channel is arranged at the top of the central shaft, the feeding channel is rotatably connected and communicated with the bottom end of the powder cylinder, a plurality of groups of inclined openings are annularly arrayed on the outer side wall of the central shaft, the inclined openings are communicated with the bottom of the feeding channel, the central shaft rotates through the cylinder cover, an outer sleeve is rotatably penetrated through the center of the cylinder cover, and the outer sleeve is rotatably sleeved on the outside of the central shaft. A positive and negative rotation switching type dispersion mechanism is arranged on the central shaft, a spreading type feeding mechanism is arranged on the outer sleeve, an air blowing anti-sticking wall mechanism is arranged under the cylinder cover, and a blowing component and a reciprocating driving component are also arranged on the cylinder cover.

[0006] As a preferred technical solution of the present invention, a driving motor is fixedly installed at the bottom of the support plate, the output end of the driving motor penetrates through the support plate, a first transmission wheel is connected to the output end of the driving motor, a second transmission wheel is rotatably arranged on the top wall of the support plate, the rotating shaft of the second transmission wheel penetrates through the support plate, a transmission belt is connected between the first transmission wheel and the second transmission wheel. The positive and negative rotation switching type dispersion mechanism includes a gear, a connecting plate, a rack and a connecting rod. The gear is fixedly sleeved on the central shaft, the connecting plate is rotatably sleeved on the central shaft, the rack is slidably arranged on the connecting plate, the rack is meshed with the gear, one end of the connecting rod is hinged to the rack, and the other end of the connecting rod is hinged to the rotating shaft of the second transmission wheel. A plurality of groups of first stirring rods are annularly arrayed at the bottom end of the central shaft.

[0007] As a preferred technical solution of the present invention, a first bevel gear is also fixedly sleeved on the central shaft, two groups of fixed blocks are fixedly arranged on the cylinder cover, and a third bevel gear is rotatably arranged on the side wall of the fixed block close to the central shaft among the two groups of fixed blocks arranged oppositely. The third bevel gear is meshed with the first bevel gear. The spreading type feeding mechanism includes a second bevel gear and a second stirring rod. The second bevel gear is fixedly arranged at the top end of the outer sleeve, the second bevel gear is of a hollow structure, the second bevel gear is sleeved through the central shaft without contact, the second bevel gear is meshed with the third bevel gear, the second stirring rod is fixedly connected with the outer sleeve, a plurality of groups of second stirring rods are annularly arrayed with the central axis of the outer sleeve as a reference, a plurality of groups of feeding holes are evenly arranged under the inclined bottom wall of the second stirring rod, a plurality of groups of through openings are annularly arrayed at the bottom end of the side wall of the outer sleeve, the through openings are communicated with the feeding holes, the through openings correspond to the inclined openings, and the feeding channel is communicated with the feeding holes in a state where the inclined openings and the through openings are rotationally aligned.

[0008] As a preferred technical solution of the present invention, the reciprocating displacement assembly includes a screw rod and a sleeve block. One end of the screw rod is rotatably arranged on a group of fixed blocks, and the other end of the screw rod rotatably penetrates through another group of fixed blocks and is connected to bevel gear three. The sleeve block is slidably arranged on the cylinder cover, and the sleeve block is threadedly sleeved on the screw rod. A piston cylinder is fixedly arranged on the cylinder cover, and the output end of the piston cylinder is fixedly connected with a connecting block, and the connecting block is fixedly connected with the sleeve block.

[0009] As a preferred technical solution of the present invention, the air blowing anti-sticking wall mechanism includes a first coiled pipe and a second coiled pipe. Both the first coiled pipe and the second coiled pipe are fixedly installed under the cylinder cover. A plurality of first jet heads are annularly arranged under the first coiled pipe, and a plurality of second jet heads are annularly arranged under the second coiled pipe. The first jet heads and the second jet heads are arranged in an alternating manner. One end of the first coiled pipe is communicated with one end of the piston cylinder through a first air pipe, and one end of the second coiled pipe is communicated with the other end of the piston cylinder through a second air pipe.

[0010] As a preferred technical solution of the present invention, a top cover is detachably arranged at the top opening of the powder material cylinder. The blowing component includes a third air pipe and a fourth air pipe. One end of the third air pipe is communicated with one end of the piston cylinder, and the other end of the third air pipe is communicated with the top cover. One end of the fourth air pipe is communicated with the other end of the piston cylinder, and the other end of the fourth air pipe is communicated with the top cover. One-way valves are arranged on both the third air pipe and the fourth air pipe.

[0011] As a preferred technical solution of the present invention, a connecting rod is fixedly connected to the inner bottom wall of the blanking channel. The top end of the connecting rod is placed inside the powder material cylinder, and a plurality of scraping rods are annularly arranged at the top end of the connecting rod.

[0012] Compared with the prior art, the present invention adopts the above structure and has the following beneficial effects:

[0013] 1. Through the forward and reverse rotation switching type dispersion mechanism, the central shaft drives the first stirring rod and realizes the forward and reverse rotation stirring of the outer sleeve and the second stirring rod through transmission. This unique method breaks the limitation of traditional single-direction stirring. The multi-directional fluid flow mode effectively eliminates local circulation dead zones, strongly prevents pigment agglomeration, ensures the uniform interweaving of each component of the pigment, greatly improves the fineness and color consistency of the pigment, provides a high-quality pigment basis for oil painting creation, and the spreading type blanking mechanism is linked with the forward and reverse rotation stirring. The pigment is dispersed and blanked from the blanking channel through the through hole of the outer sleeve and the blanking holes of the second stirring rod. The forward and reverse rotation actions continuously disturb the pigment around the blanking holes, avoid the precipitation and accumulation of particles causing blockage, ensure the continuous and stable supply of the pigment to the stirring area, maintain the production coherence, and reduce the shutdown and maintenance time caused by unsmooth blanking;

[0014] 2. The forward and reverse rotations of the third bevel gear just drive the sleeve block on the screw rod to reciprocate, thereby realizing the movement of the piston in the piston cylinder. When the piston moves in the piston cylinder, gas is respectively conveyed or extracted through the first air pipe and the second air pipe. The suction movements of the first air pipe and the second air pipe are carried out alternately. When the first jet head blows air, the second jet head extracts gas. When the second jet head blows air, the first jet head extracts gas. While ensuring the stable air pressure in the dispersion cylinder, the first jet head and the second jet head continuously blow air on the inner wall of the dispersion cylinder. The ejected gas directly blows towards the inner wall of the dispersion cylinder to form an air film, preventing the pigment from sticking to the wall.

[0015] 3. When the piston moves in the piston cylinder, the gases at both ends inside the piston cylinder respectively blow air into the powder cylinder through the third air pipe and the fourth air pipe alternately. Due to the reciprocating movement of the piston cylinder, the gas is continuously and regularly blown into the powder cylinder, forming a blowing action on the pigment in the powder cylinder. The blowing-in of the gas increases the fluidity of the pigment in the powder cylinder. The airflow generated by the blowing can disturb the pigment particles and prevent them from sticking to each other. At the same time, the airflow in the powder cylinder always goes downward, ensuring that the pigment can be discharged smoothly and preventing the material from accumulating in the powder cylinder. The setting of the one-way valve enables the gas to flow only in the set direction, preventing backflow.

[0016] 4. The connecting rod and the scraping rod in the feeding channel rotate along with the central shaft, and scrape the pigment that may adhere to the inner wall of the powder cylinder in real time. Acting in coordination with the air-blowing anti-sticking wall mechanism, it further reduces the probability of the pigment adhering to the key parts of the equipment, ensuring the purity of the pigment and the efficient operation of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is the overall structural schematic diagram of an oil painting pigment fine dispersion device proposed by the present invention Figure 1 ;

[0018] Figure 2 is the overall structural schematic diagram of an oil painting pigment fine dispersion device proposed by the present invention Figure 2 ;

[0019] Figure 3 is the cross-sectional view of the powder cylinder, the central shaft and the outer sleeve of an oil painting pigment fine dispersion device proposed by the present invention;

[0020] Figure 4 is the three-dimensional structure of the upper part of the top cover of an oil painting pigment fine dispersion device proposed by the present invention Figure 1 ;

[0021] Figure 5 is the structural schematic diagram of the central shaft, the outer sleeve and the forward and reverse rotation switching type dispersion mechanism of an oil painting pigment fine dispersion device proposed by the present invention Figure 1 ;

[0022] Figure 6Structural schematic of the central shaft, outer sleeve and forward and reverse switching type dispersion mechanism of an oil painting pigment fine dispersion device proposed by the present invention Figure 2 ;

[0023] Figure 7 is Figure 6 Partial enlarged view at A in

[0024] Figure 8 Three-dimensional structure of the upper part of the top cover of an oil painting pigment fine dispersion device proposed by the present invention Figure 2 ;

[0025] Figure 9 Structural schematic of removing the dispersion cylinder of an oil painting pigment fine dispersion device proposed by the present invention.

[0026] Among them, 1. Dispersion cylinder, 2. Cylinder cover, 21. Air blowing anti-sticking wall mechanism, 211. Coiled pipe one, 2111. Jet head one, 212. Coiled pipe two, 2121. Jet head two, 213. Air pipe one, 214. Air pipe two, 22. Blowing material assembly, 221. Air pipe three, 222. Air pipe four, 23. Reciprocating displacement assembly, 231. Screw rod, 232. Sleeve block, 24. Fixed block, 241. Bevel gear three, 25. Piston cylinder, 251. Connecting block, 3. Support plate, 31. Driving motor, 32. Driving wheel one, 33. Driving wheel two, 34. Transmission belt, 4. Powder cylinder, 41. Top cover, 5. Central shaft, 51. Feeding channel, 511. Connecting rod, 512. Scraping rod, 52. Forward and reverse switching type dispersion mechanism, 521. Gear, 522. Linking plate, 523. Rack, 524. Connecting rod, 525. Stirring rod one, 53. Bevel gear one, 54. Oblique opening, 6. Outer sleeve, 61. Spreading type feeding mechanism, 611. Bevel gear two, 612. Stirring rod two, 613. Feeding hole, 614. Through hole. Specific embodiments

[0027] Next, the technical solutions of the present invention will be clearly and completely described in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of them. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0028] Such as Figures 1 - 9As shown in the figure, a fine dispersion device for oil paint provided by the present invention includes a dispersion cylinder 1. A cylinder cover 2 is detachably installed at the top opening of the dispersion cylinder 1. A support plate 3 is fixedly arranged on the top wall of the cylinder cover 2. A powder cylinder 4 is fixedly installed on the support plate 3. A central shaft 5 is rotatably connected to the bottom of the top wall of the support plate 3. A feeding channel 51 is arranged at the top of the central shaft 5. The feeding channel 51 is rotatably connected and communicated with the bottom end of the powder cylinder 4. A plurality of groups of inclined openings 54 are annularly arranged on the outer side wall of the central shaft 5. The inclined openings 54 are communicated with the bottom of the feeding channel 51. A connecting rod 511 is fixedly connected to the inner bottom wall of the feeding channel 51. The top end of the connecting rod 511 is placed inside the powder cylinder 4. A plurality of groups of scraping rods 512 are annularly arranged at the top end of the connecting rod 511. When the central shaft 5 rotates, the connecting rod 511 in the feeding channel 51 is driven to rotate synchronously. The connecting rod 511 drives the scraping rods 512 to rotate and scrape the material inside the powder cylinder 4, preventing the paint in the powder cylinder 4 from sticking to the wall. The central shaft 5 rotates through the cylinder cover 2. An outer sleeve 6 is rotatably penetrated through the center of the cylinder cover 2, and the outer sleeve 6 is rotatably sleeved on the outer side of the central shaft 5. A positive and negative rotation switching type dispersion mechanism 52 is arranged on the central shaft 5, which can perform stirring and dispersion with positive and negative rotation switching for the paint in the dispersion cylinder 1. A spreading type feeding mechanism 61 is arranged on the outer sleeve 6, which can spread and feed the paint powder during the reciprocating rotation. An air blowing anti-sticking wall mechanism 21 is arranged under the cylinder cover 2, which blows air on the inner wall of the dispersion cylinder 1 by using the pressure difference, effectively preventing the paint from sticking to the wall and being difficult to clean subsequently. A blowing component 22 and a reciprocating displacement component 23 are also arranged on the cylinder cover 2.

[0029] A driving motor 31 is fixedly installed at the bottom of the support plate 3, and the output end of the driving motor 31 is arranged through the support plate 3, and a transmission wheel 1 32 is connected to the output end of the driving motor 31, and a transmission wheel 2 33 is rotatably arranged on the top wall of the support plate 3, and the rotating shaft of the transmission wheel 2 33 is arranged through the support plate 3, and a transmission belt 34 is connected between the transmission wheel 1 32 and the transmission wheel 2 33. The driving motor 31 provides a power source to drive the transmission wheel 1 32 to rotate, and the transmission wheel 1 32 drives the transmission wheel 2 33 to rotate through the transmission belt 34. The forward and reverse switching dispersion mechanism 52 includes a gear 521, a linkage plate 522, a rack 523 and a connecting rod 524. The gear 521 is fixedly sleeved on the central shaft 5, the linkage plate 522 is rotatably sleeved on the central shaft 5, the rack 523 is slidably arranged on the linkage plate 522, the rack 523 is meshed with the gear 521, and one end of the connecting rod 524 is engaged with the gear The rack 523 is hingedly arranged, and the other end of the connecting rod 524 is hingedly arranged with the rotating shaft of the transmission wheel 2 33. The bottom end of the central shaft 5 has multiple groups of stirring rods 525 in a circular array. The transmission wheel 2 33 drives the connecting rod 524 to swing back and forth, and the connecting rod 524 drives the rack 523 to slide on the connecting plate 522. The connecting plate 522 rotates on the central shaft 5 under the action of the rack 523. The rack 523 is engaged with the gear 521, driving the gear 521 to rotate in a forward and reverse switching manner. Since the gear 521 is fixedly sleeved on the central shaft 5, it drives the central shaft 5 to rotate in a forward and reverse switching manner. The central shaft 5 drives the stirring rod 1 525 to perform forward and reverse switching stirring and dispersion in the dispersion tube 1. The forward and reverse switching can effectively prevent agglomeration, and can produce different fluid flow patterns in different rotation directions. The alternating flow mode can effectively break the local circulation dead zone that may be formed by unidirectional stirring.

[0030] A first bevel gear 53 is also fixedly sleeved on the central shaft 5. Fixed blocks 24 are fixedly arranged on the cylinder cover 2. There are two groups of fixed blocks 24 arranged oppositely. A third bevel gear 241 is rotatably arranged on the side wall of the fixed block 24 close to the central shaft 5. The third bevel gear 241 is meshed with the first bevel gear 53. The spreading type blanking mechanism 61 includes a second bevel gear 611 and a second stirring rod 612. The second bevel gear 611 is fixedly arranged at the top end of the outer sleeve 6. The second bevel gear 611 is of a hollow structure and is sleeved on the central shaft 5 without contact. The second bevel gear 611 is meshed with the third bevel gear 241. The second stirring rod 612 is fixedly connected with the outer sleeve 6. The second stirring rods 612 are arranged in a plurality of groups in a circular array with the central axis of the outer sleeve 6 as the reference. A plurality of blanking holes 613 are evenly arranged under the inclined bottom wall of the second stirring rod 612. A plurality of through ports 614 are arranged in a circular array at the bottom end of the side wall of the outer sleeve 6. The through ports 614 are communicated with the blanking holes 613. The through ports 614 are arranged corresponding to the inclined ports 54. The blanking channel 51 is communicated with the blanking holes 613 when the inclined port 54 and the through port 614 are rotationally aligned. The central shaft 5 synchronously drives the first bevel gear 53 to rotate in a forward and reverse switching manner. The first bevel gear 53 drives the third bevel gear 241 to rotate in a forward and reverse switching manner. The third bevel gear 241 drives the second bevel gear 611 to rotate in a forward and reverse switching manner. The second bevel gear 611 drives the outer sleeve 6 and the second stirring rods 612 on the outer sleeve 6 to perform forward and reverse switching stirring and dispersion in the dispersion cylinder 1. At the same time, the pigment in the powder cylinder 4 is conveyed to the blanking holes 613 through the blanking channel 51 and the through ports 614 and is dispersed and blanked into the dispersion cylinder 1 through the blanking holes 613. While the second stirring rod 612 rotates, the pigment continuously outputs from the blanking holes 613. The forward and reverse actions help to prevent the blanking holes 613 from being blocked, avoid the precipitation and accumulation of the pigment, ensure the uniform dispersion of each component of the pigment, and improve the mixing quality.

[0031] The reciprocating driving and moving assembly 23 includes a screw rod 231 and a sleeve block 232. One end of the screw rod 231 is rotatably arranged on one of the fixed blocks 24. The other end of the screw rod 231 rotatably penetrates through the other fixed block 24 and is connected with the third bevel gear 241. The sleeve block 232 is slidably arranged on the cylinder cover 2. The sleeve block 232 is threadedly sleeved on the screw rod 231. A piston cylinder 25 is fixedly arranged on the cylinder cover 2. The output end of the piston cylinder 25 is fixedly connected with a connecting block 251. The connecting block 251 is fixedly connected with the sleeve block 232. The third bevel gear 241 drives the screw rod 231 to rotate in a forward and reverse switching manner. Under the action of the screw thread transmission on the screw rod 231, the sleeve block 232 reciprocates. The sleeve block 232 drives the output end of the piston cylinder 25 to reciprocate through the connecting block 251, so as to realize the piston movement in the piston cylinder 25.

[0032] The air-blowing anti-sticking wall mechanism 21 includes a first coil pipe 211 and a second coil pipe 212. Both the first coil pipe 211 and the second coil pipe 212 are fixedly installed under the cylinder cover 2. Multiple groups of first air nozzles 2111 are annularly arranged under the first coil pipe 211, and multiple groups of second air nozzles 2121 are annularly arranged under the second coil pipe 212. The first air nozzles 2111 and the second air nozzles 2121 are arranged in an alternating manner. One end of the first coil pipe 211 is connected to one end of the piston cylinder 25 through an air pipe 213, and one end of the second coil pipe 212 is connected to the other end of the piston cylinder 25 through an air pipe 214. When a piston movement occurs in the piston cylinder 25, gas is respectively transported or extracted through the air pipe 213 and the air pipe 214. The suction movements of the air pipe 213 and the air pipe 214 alternate. When the first air nozzles 2111 blow air, the second air nozzles 2121 extract gas. When the second air nozzles 2121 blow air, the first air nozzles 2111 extract gas. While ensuring the stable air pressure in the dispersion cylinder 1, the first air nozzles 2111 and the second air nozzles 2121 continuously blow air on the inner wall of the dispersion cylinder 1. The ejected gas directly blows towards the inner wall of the dispersion cylinder 1 to form an air film to prevent the pigment from sticking to the wall. A top cover 41 is detachably arranged at the top opening of the powder material cylinder 4. The blowing component 22 includes an air pipe 221 and an air pipe 222. One end of the air pipe 221 is connected to one end of the piston cylinder 25, and the other end of the air pipe 221 is connected to the top cover 41. One end of the air pipe 222 is connected to the other end of the piston cylinder 25, and the other end of the air pipe 222 is connected to the top cover 41. Check valves are arranged on both the air pipe 221 and the air pipe 222. When a piston movement occurs in the piston cylinder 25, the gases at both ends inside the piston cylinder 25 alternately blow air into the powder material cylinder 4 through the air pipe 221 and the air pipe 222. Due to the reciprocating movement of the piston cylinder 25, the gas continuously and regularly blows into the powder material cylinder 4 to form a blowing action on the pigment in the powder material cylinder 4. The blowing-in of the gas increases the fluidity of the pigment in the powder material cylinder 4. The airflow generated by the blowing can disturb the pigment particles to prevent them from sticking to each other. At the same time, the airflow in the powder material cylinder 4 always goes downward to ensure that the pigment can be smoothly discharged and prevent the material from accumulating in the powder material cylinder 4. The setting of the check valve enables the gas to flow only in the set direction to prevent backflow.

[0033] During specific use, oil for producing oil painting pigments and additives are conveyed in the dispersion cylinder 1, and sufficient pigments are added into the powder cylinder 4. The cylinder cover 2 is closed on the opening of the dispersion cylinder 1, and the top cover 41 is closed on the opening of the powder cylinder 4. The driving motor 31 is started. The driving motor 31 provides a power source, drives the first transmission wheel 32 to rotate. The first transmission wheel 32 drives the second transmission wheel 33 to rotate through the transmission belt 34. The second transmission wheel 33 drives the connecting rod 524 to rotate. The connecting rod 524 drives the rack 523 to slide on the linkage plate 522. The linkage plate 522 rotates on the central shaft 5 under the action force of the rack 523. The rack 523 meshes with the gear 521, driving the gear 521 to rotate in a forward and reverse switching manner. Since the gear 521 is fixedly sleeved on the central shaft 5, the central shaft 5 is driven to rotate in a forward and reverse switching manner. The central shaft 5 drives the first stirring rod 525 to perform forward and reverse switching stirring and dispersion in the dispersion cylinder 1;

[0034] When the central shaft 5 rotates, it synchronously drives the connecting rod 511 in the blanking channel 51 to rotate. The connecting rod 511 drives the scraping rod 512 to rotate and scrape the material in the powder cylinder 4, preventing the pigments in the powder cylinder 4 from sticking to the wall. The central shaft 5 synchronously drives the first bevel gear 53 to rotate in a forward and reverse switching manner. The first bevel gear 53 drives the third bevel gear 241 to rotate in a forward and reverse switching manner. The third bevel gear 241 drives the second bevel gear 611 to rotate in a forward and reverse switching manner. The second bevel gear 611 drives the outer sleeve 6 and the second stirring rod 612 on the outer sleeve 6 to perform forward and reverse switching stirring and dispersion in the dispersion cylinder 1. At the same time, the pigments in the powder cylinder 4 are conveyed to the blanking hole 613 through the blanking channel 51 and the through port 614, and are dispersed and fed into the dispersion cylinder 1 from the blanking hole 613. While the second stirring rod 612 rotates, the pigments continuously output from the blanking hole 613, are evenly spread into the dispersion cylinder 1 and participate in the stirring;

[0035] Meanwhile, the third bevel gear 241 drives the screw rod 231 to rotate in a forward and reverse switching manner. Under the action of the screw thread transmission on the screw rod 231, the sleeve block 232 reciprocates. The sleeve block 232 drives the output end of the piston cylinder 25 to reciprocate through the connecting block 251, so as to Figure 8 Taking the structure in [[ ]] as an example, when the piston in the piston cylinder 25 moves to the left, gas is conveyed through the second air pipe 214 and the fourth air pipe 222, and gas is extracted through the first air pipe 213 and the third air pipe 221. The second air pipe 214 conveys gas to the second coiled pipe 212, and the gas is ejected directly onto the inner wall of the dispersion cylinder 1 by the second air jet head 2121 to form an air film to prevent the pigments from sticking to the wall. The first air pipe 213 extracts the gas in the dispersion cylinder 1 through the first air jet head 2111 on the first coiled pipe 211 to ensure the stable air pressure in the dispersion cylinder 1. Due to the setting of one-way valves on the third air pipe 221 and the fourth air pipe 222, the gas can only be conveyed unidirectionally. The gas conveyed by the fourth air pipe 222 is blown into the powder cylinder 4 to form a blowing action on the pigments in the powder cylinder 4. The blowing of the gas increases the fluidity of the pigments in the powder cylinder 4, and at the same time, the downward airflow always ensures that the pigments can be smoothly fed;

[0036] Taking the structure in Figure 8 as an example, when the piston in the piston cylinder 25 moves to the right, gas is transported through the first air pipe 213 and the third air pipe 221, and gas is extracted through the second air pipe 214 and the fourth air pipe 222. The first air pipe 213 transports gas to the first coil pipe 211, and the gas is ejected directly onto the inner wall of the dispersion cylinder 1 by the first jet head 2111 to form an air film to prevent the pigment from sticking to the wall. The second air pipe 214 extracts the gas in the dispersion cylinder 1 through the second jet head 2121 on the second coil pipe 212 to ensure the stable air pressure in the dispersion cylinder 1. Due to the setting of one-way valves on the third air pipe 221 and the fourth air pipe 222, the gas can only be transported unidirectionally. The gas transported by the third air pipe 221 is blown into the powder material cylinder 4 to form a blowing action on the pigment in the powder material cylinder 4. The blowing-in of the gas increases the fluidity of the pigment in the powder material cylinder 4, and at the same time, the downward airflow always ensures that the pigment can be discharged smoothly;

[0037] Without changing the internal pressure of the dispersion cylinder 1, the first jet head 2111 and the second jet head 2121 continuously blow air onto the inner wall of the dispersion cylinder 1. The ejected gas is directly blown onto the inner wall of the dispersion cylinder 1 to form an air film to prevent the pigment from sticking to the wall. Part of the gas in the piston cylinder 25 is continuously and regularly blown into the powder material cylinder 4 through the third air pipe 221 or the fourth air pipe 222 to form a blowing action on the pigment in the powder material cylinder 4. The blowing-in of the gas increases the fluidity of the pigment in the powder material cylinder 4, and the airflow generated by the blowing can disturb the pigment particles to prevent them from sticking to each other and ensure that the pigment can be discharged smoothly.

[0038] The above describes the present invention and its implementation manners. This description is not restrictive. What is shown in the drawings is only one of the implementation manners of the present invention, and the actual structure is not limited thereto. Generally speaking, if those of ordinary skill in the art are inspired by it and without departing from the purpose of the present invention creation, and design a structural manner and an embodiment similar to this technical solution without creative efforts, they shall fall within the protection scope of the present invention.

Claims

1. A fine dispersion device for oil painting pigments, comprising a dispersion cylinder, a cylinder cover is detachably mounted at the top opening of the dispersion cylinder, a support plate is fixedly mounted on the top wall of the cylinder cover, a powder cylinder is fixedly mounted on the support plate, and the characteristics are: A central shaft is screwed on the bottom of the top wall of the support plate, a feeding channel is arranged on the top of the central shaft, the feeding channel is screwed and connected with the bottom end of the powder barrel, a plurality of groups of bevels are arranged in a circular array on the outer wall of the central shaft, the bevels are connected and connected with the bottom of the feeding channel, the central shaft rotates and penetrates the barrel cover, an outer sleeve is rotated and penetrated at the center of the barrel cover, and the outer sleeve is rotatably sleeved on the outer side of the central shaft, a forward and reverse switching dispersion mechanism is arranged on the central shaft, a spreading feeding mechanism is arranged on the outer sleeve, an air blowing anti-sticking wall mechanism is arranged under the barrel cover, a blowing assembly and a reciprocating drive assembly are also arranged on the barrel cover, a bevel gear 1 is fixedly sleeved on the central shaft, a fixed block is fixedly arranged on the barrel cover, two groups of fixed blocks are arranged relatively, and a bevel gear 3 is rotatably arranged on the side wall of the fixed block close to the central shaft, and the bevel gear 3 is meshed with the bevel gear 1; The reciprocating drive assembly includes a screw and a sleeve block, one end of the screw is rotatably arranged on a set of fixed blocks, the other end of the screw is rotatably passed through another set of fixed blocks and connected with bevel gear three, the sleeve block is slidably arranged on the cylinder cover, the sleeve block is threadedly sleeved on the screw, a piston cylinder is fixedly arranged on the cylinder cover, the output end of the piston cylinder is fixedly connected to a connecting block, and the connecting block is fixedly connected to the sleeve block; A driving motor is fixedly installed at the bottom of the support plate, and the output end of the driving motor penetrates the support plate, and a transmission wheel 1 is connected to the output end of the driving motor, and a transmission wheel 2 is rotatably arranged on the top wall of the support plate, and the rotating shaft of the transmission wheel 2 penetrates the support plate. A transmission belt is connected between the transmission wheel 1 and the transmission wheel 2 for transmission, and the forward and reverse switching dispersion mechanism includes a gear, a linkage plate, a rack and a connecting rod. The gear is fixedly sleeved on the central shaft, the linkage plate is rotatably sleeved on the central shaft, the rack is slidably arranged on the linkage plate, the rack is meshed with the gear, one end of the connecting rod is hinged to the rack, and the other end of the connecting rod is hinged to the rotating shaft of the transmission wheel 2, and a plurality of groups of stirring rods 1 are arranged in an annular array at the bottom end of the central shaft; The spreading type unloading mechanism comprises a second bevel gear and a second stirring rod, wherein the second bevel gear is fixedly arranged at the top end of the outer sleeve, the second bevel gear is arranged as a hollow structure, the second bevel gear is arranged through a sleeve without contact with the central axis, the second bevel gear is arranged in meshing with the third bevel gear, the second stirring rod is fixedly connected to the outer sleeve, the second stirring rod is arranged in a circular array with the central axis of the outer sleeve as the reference, a plurality of groups of unloading holes are evenly arranged under the inclined bottom wall of the second stirring rod, the bottom end of the side wall of the outer sleeve is arranged in a circular array with a plurality of groups of through openings, the through openings are arranged in communication with the unloading holes, the through openings are arranged corresponding to the oblique openings, and the unloading channel is arranged in communication with the unloading holes when the oblique openings are rotationally aligned with the through openings; The air blowing anti-sticking wall mechanism comprises a coil pipe 1 and a coil pipe 2, both of which are fixedly installed under the cylinder cover, a plurality of groups of nozzles 1 are arranged in an annular array below the coil pipe, a plurality of groups of nozzles 2 are arranged in an annular array below the coil pipe 2, the nozzles 1 and 2 are arranged alternately, the coil pipe 1 is connected to one end of the piston cylinder via an air pipe 1, and the coil pipe 2 is connected to the other end of the piston cylinder via an air pipe 2; A top cover is detachably provided at the top opening of the powder barrel, and the blowing assembly includes air pipe three and air pipe four, one end of air pipe three is connected to one end of the piston cylinder, the other end of air pipe three is connected to the top cover, one end of air pipe four is connected to the other end of the piston cylinder, the other end of air pipe four is connected to the top cover, and one-way valves are provided on air pipe three and air pipe four.

2. The oil painting pigment fine dispersion device according to claim 1, characterized in that: A connecting rod is fixedly connected to the inner bottom wall of the material discharge channel, the top end of the connecting rod is placed in the powder barrel, and a plurality of scraping rods are arranged in a circular array at the top end of the connecting rod.

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