Oil paint fine dispersing device

Abstract

The invention belongs to the technical field of pigment dispersion, and particularly relates to an oil paint fine dispersion device which comprises a dispersion barrel, a barrel cover is detachably mounted at a top opening of the dispersion barrel, a supporting plate is fixedly arranged on the top wall of the barrel cover, a powder barrel is fixedly mounted on the supporting plate, and a center shaft is rotationally connected to the lower portion of the top wall of the supporting plate. A discharging channel is formed in the top of the center shaft, an outer sleeve rotationally penetrates through the barrel cover, a forward and reverse rotation switching type dispersing mechanism is arranged on the center shaft, and a spreading type discharging mechanism is arranged on the outer sleeve shaft; a local circulation dead zone can be effectively eliminated in a multi-direction fluid flowing mode, a spreading type discharging mechanism continuously disturbs pigment around a discharging hole by means of forward and reverse rotation stirring linkage, pigment dispersion discharging and forward and reverse rotation actions, blockage is avoided, the interior of a dispersion barrel is alternately sucked by means of air pressure changes at the two ends of a piston cylinder, and the air pressure in the dispersion barrel is kept stable; meanwhile, wall blowing is uninterrupted, and pigment is prevented from adhering to the wall.

Description

Technical Field

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

[0002] The quality of oil paint is crucial to oil painting creation. Its fineness, uniformity and color expression all depend on the good dispersion of the paint.

[0003] Traditional pigment dispersing devices have many shortcomings: first, the stirring method is single, mostly unidirectional stirring, which can easily lead to the formation of local circulation dead zones in the stirring container, resulting in uneven mixing of the pigment components, especially for oil painting pigments containing multiple additives, different densities and particle sizes. It is impossible to fully achieve uniform dispersion, affecting the color and texture stability of the pigment; second, the feeding process is prone to blockage. The particles in the pigment may accumulate at the outlet or channel in the conventional feeding device due to moisture, stickiness and other factors, hindering the pigment from continuously and stably entering the stirring area; third, the pigment is very easy to stick to the wall. The pigment attached to the inner wall of the dispersion cylinder not only causes a waste of raw materials, but also increases the difficulty of equipment cleaning and maintenance costs. In addition, the long-term accumulation of residual pigments may corrode the equipment and reduce the service life of the equipment; fourth, the fluidity of the pigment powder is not well regulated. If the pigment powder lacks effective disturbance during storage and transportation, it is easy to agglomerate, affecting the smoothness of feeding and the subsequent stirring and dispersion effect. Summary of the invention

[0004] In order to solve the above-mentioned problems, the present invention provides a fine dispersion device for oil painting pigments. Through the forward and reverse switching dispersion mechanism, it breaks the limitation of traditional unidirectional stirring. The multi-directional fluid flow pattern effectively eliminates the local circulation dead zone. The spreading type feeding mechanism is linked with the forward and reverse stirring. The pigment is dispersed and discharged from the feeding channel through the outer sleeve opening and the feeding hole of the second stirring rod. The forward and reverse actions continuously disturb the pigment around the feeding hole to avoid blockage. The air pressure changes at both ends of the piston cylinder are used to alternately suck the inside of the dispersion cylinder to maintain the air pressure in the dispersion cylinder stable. At the same time, the wall is blown continuously to form an air film to prevent the pigment from sticking to the wall. Part of the gas in the piston cylinder is blown into the powder cylinder, and the airflow continuously disturbs the pigment powder, thereby overcoming the agglomeration problem of the pigment caused by moisture, long-term static storage, etc., and enhancing fluidity.

[0005] In order to achieve the above-mentioned functions, the technical scheme adopted by the present invention is as follows: a fine dispersion device for oil painting pigments comprises a dispersion barrel, a barrel cover is detachably installed at the top opening of the dispersion barrel, a support plate is fixedly arranged on the top wall of the barrel cover, a powder barrel is fixedly arranged on the support plate, a central axis is screwed on the bottom of the top wall of the support plate, a feeding channel is arranged on the top of the central axis, 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 axis, the bevels are connected and connected with the bottom of the feeding channel, the central axis rotates and penetrates the barrel cover, an outer sleeve is rotated and penetrates the center of the barrel cover, and the outer sleeve is rotatably sleeved on the outside of the central axis, a forward and reverse switching dispersion mechanism is arranged on the central axis, a spreading feeding mechanism is arranged on the outer sleeve, an air blowing anti-sticking wall mechanism is arranged under the barrel cover, and a blowing assembly and a reciprocating drive assembly are also arranged on the barrel cover.

[0006] As a preferred technical solution of the present invention, a driving motor is fixedly installed on the bottom of the support plate, and the output end of the driving motor is arranged through 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 is arranged through the support plate, and 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 axis, the linkage plate is rotatably sleeved on the central axis, 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 the bottom end of the central axis has a plurality of groups of stirring rods 1 in a circular array.

[0007] As a preferred technical solution of the present invention, a bevel gear 1 is fixedly provided on the central shaft, a fixed block is fixedly provided on the cylinder cover, and two groups of the fixed blocks are relatively arranged, wherein a bevel gear 3 is rotatably provided 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 spreading type unloading mechanism comprises a bevel gear 2 and a stirring rod 2, the bevel gear 2 is fixedly provided on the top end of the outer sleeve, the bevel gear 2 is a hollow structure, the bevel gear 2 is non-contactly sleeved with the central shaft, the bevel gear 2 is meshed with the bevel gear 3, the stirring rod 2 is fixedly connected to the outer sleeve, the stirring rod 2 is annularly arrayed in multiple groups with the central axis of the outer sleeve as the reference, multiple groups of unloading holes are evenly arranged under the inclined bottom wall of the stirring rod 2, the bottom end of the side wall of the outer sleeve is annularly arrayed with multiple groups of through-ports, the through-ports are arranged in communication with the unloading holes, the through-ports are arranged corresponding to the oblique ports, and the unloading channel is arranged in communication with the unloading holes when the oblique ports are rotationally aligned with the through-ports.

[0008] As a preferred technical solution of the present invention, the reciprocating drive assembly includes a screw and a sleeve block, one end of the screw is rotatably arranged on a group of fixed blocks, the other end of the screw is rotatably passed through another group of fixed blocks and connected with the bevel gear three times, 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.

[0009] As a preferred technical solution of the present invention, the air blowing anti-sticking wall mechanism includes a coil one and a coil two, and the coil one and the coil two are fixedly installed under the cylinder cover. A circular array below the coil has multiple groups of nozzles one, and a circular array below the coil two has multiple groups of nozzles two, and the nozzles one and the nozzles two are arranged alternately with each other. The coil one is connected to one end of the piston cylinder through an air pipe one, and the coil two is connected to the other end of the piston cylinder through an air pipe two.

[0010] As a preferred technical solution of the present invention, 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.

[0011] As a preferred technical solution of the present invention, a connecting rod is fixedly connected to the inner bottom wall of the feeding channel, the top end of the connecting rod is placed in the powder barrel, and the top end of the connecting rod has multiple groups of scraping rods in a circular array.

[0012] Compared with the prior art, the present invention adopts the above structure to achieve the following beneficial effects: 1. Through the forward and reverse switching dispersion mechanism, the central shaft drives the stirring rod 1 and realizes the forward and reverse stirring of the outer sleeve and the stirring rod 2 through transmission. This unique method breaks the limitation of traditional one-way stirring. The multi-directional fluid flow mode effectively eliminates the local circulation dead zone, strongly prevents the pigment from agglomerating, ensures that the various components of the pigment are evenly interwoven, greatly improves the fineness and color consistency of the pigment, and provides a high-quality pigment foundation for oil painting creation. In addition, the spreading type feeding mechanism is linked with the forward and reverse stirring. The pigment is dispersed and discharged from the feeding channel through the outer sleeve port and the feeding hole of the stirring rod 2. The forward and reverse movements continuously disturb the pigment around the feeding hole to avoid blockage caused by particle precipitation and accumulation, ensure the continuous and stable supply of pigment to the stirring area, maintain production continuity, and reduce the downtime and maintenance time caused by poor feeding; 2. The positive and negative rotation of bevel gear 3 just drives the sleeve block on the screw to reciprocate, thereby realizing the piston movement in the piston cylinder. When the piston moves in the piston cylinder, gas is transported or extracted through air pipe 1 and air pipe 2 respectively. The suction movements of air pipe 1 and air pipe 2 are performed alternately. When jet head 1 blows, jet head 2 extracts gas, and when jet head 2 blows, jet head 1 extracts gas. While ensuring the stability of the air pressure in the dispersion cylinder, jet heads 1 and 2 continuously blow air to the inner wall of the dispersion cylinder. The ejected gas is directly blown to the inner wall of the dispersion cylinder to form an air film to prevent the pigment from sticking to the wall. 3. When the piston moves in the piston cylinder, the gas at both ends of the piston cylinder blows into the powder cylinder alternately through air pipe three and air pipe four. Due to the reciprocating motion 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 of gas increases the fluidity of the pigment in the powder cylinder. 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 cylinder is always downward, ensuring that the pigment can be smoothly discharged and preventing the material from accumulating in the powder cylinder. The setting of the one-way valve allows the gas to flow only in the set direction to prevent backflow; 4. The connecting rod and scraper rod in the feeding channel rotate with the central axis to scrape off the pigment that may be adhered to the inner wall of the powder barrel in real time, and work together with the air-blowing anti-sticking mechanism to further reduce the probability of pigment adhesion to key parts of the equipment, ensuring the purity of the pigment and efficient operation of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 The overall structure of the oil painting pigment fine dispersion device proposed by the present invention is shown in FIG. Figure 1 ; Figure 2 The overall structure of the oil painting pigment fine dispersion device proposed by the present invention is shown in FIG. Figure 2 ; Figure 3 A cross-sectional view of a powder barrel, a central axis and an outer sleeve of an oil painting pigment fine dispersion device proposed by the present invention; Figure 4 The three-dimensional structure of the top cover of the oil painting pigment fine dispersion device proposed by the present invention Figure 1 ; Figure 5 The structure diagram of the central axis, outer sleeve and forward and reverse switching type dispersion mechanism of the oil painting pigment fine dispersion device proposed by the present invention is shown in FIG. Figure 1 ; Figure 6 The structure diagram of the central axis, outer sleeve and forward and reverse switching type dispersion mechanism of the oil painting pigment fine dispersion device proposed by the present invention is shown in FIG. Figure 2 ; Figure 7 for Figure 6A partial enlarged view of the middle part; Figure 8 The three-dimensional structure of the top cover of the oil painting pigment fine dispersion device proposed by the present invention Figure 2 ; Fig. 9 The present invention is a schematic diagram of the structure of a removal dispersion tube of an oil painting pigment fine dispersion device proposed by the present invention.

[0014] Among them, 1. dispersion cylinder, 2. cylinder cover, 21. air blowing anti-sticking wall mechanism, 211. coil one, 2111. nozzle one, 212. coil two, 2121. nozzle two, 213. air pipe one, 214. air pipe two, 22. blowing assembly, 221. air pipe three, 222. air pipe four, 23. reciprocating drive assembly, 231. screw, 232. sleeve block, 24. fixed block, 241. bevel gear three, 25. piston cylinder, 251. connecting block, 3. support plate, 31. drive motor, 32. transmission Wheel one, 33, transmission wheel two, 34, transmission belt, 4, powder barrel, 41, top cover, 5, center axis, 51, discharge channel, 511, connecting rod, 512, scraper rod, 52, forward and reverse switching dispersion mechanism, 521, gear, 522, linkage plate, 523, rack, 524, connecting rod, 525, stirring rod one, 53, bevel gear one, 54, oblique mouth, 6, outer sleeve, 61, spreading discharge mechanism, 611, bevel gear two, 612, stirring rod two, 613, discharge hole, 614, through mouth. DETAILED DESCRIPTION

[0015] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0016] like Figure 1-Figure 9As shown, the present invention provides an oil painting pigment fine dispersion device, comprising a dispersion barrel 1, a barrel cover 2 is detachably installed at the top opening of the dispersion barrel 1, a support plate 3 is fixedly arranged on the top wall of the barrel cover 2, a powder barrel 4 is fixedly installed on the support plate 3, a central axis 5 is screwed on the bottom of the top wall of the support plate 3, a feeding channel 51 is arranged on the top of the central axis 5, the feeding channel 51 is screwed and connected to the bottom end of the powder barrel 4, a plurality of groups of bevels 54 are arranged in an annular array on the outer side wall of the central axis 5, the bevels 54 are connected to 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 in the powder barrel 4, the top end of the connecting rod 511 is arranged in an annular array with a plurality of scraping rods 512, and the feeding channel 51 is synchronously driven when the central axis 5 rotates. 1, the connecting rod 511 in the powder barrel 4 rotates, and the connecting rod 511 drives the scraper rod 512 to rotate and scrape the material in the powder barrel 4 to prevent the pigment in the powder barrel 4 from sticking to the wall. The central axis 5 rotates and penetrates the barrel cover 2. The center of the barrel cover 2 rotates and penetrates the outer sleeve 6, and the outer sleeve 6 is rotatably sleeved on the outside of the central axis 5. The central axis 5 is provided with a forward and reverse switching dispersion mechanism 52, which can stir and disperse the pigment in the dispersion barrel 1 by switching back and forth in forward and reverse directions. The outer sleeve 6 is provided with a spreading feeding mechanism 61, which can spread and feed the pigment powder during the back and forth rotation. An air blowing anti-sticking wall mechanism 21 is provided under the barrel cover 2, which uses the pressure difference to blow the inner wall of the dispersion barrel 1, effectively preventing the pigment from sticking to the wall and being difficult to clean up later. The barrel cover 2 is also provided with a blowing component 22 and a reciprocating drive component 23.

[0017] 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.

[0018] A bevel gear 53 is fixedly sleeved on the central shaft 5, and a fixed block 24 is fixedly arranged on the cylinder cover 2. Two groups of fixed blocks 24 are arranged relatively to each other, wherein a bevel gear 3 241 is rotatably arranged on the side wall of the fixed block 24 close to the central shaft 5, and the bevel gear 3 241 is meshed with the bevel gear 53. The spreading type unloading mechanism 61 includes a bevel gear 2 611 and a stirring rod 2 612. The bevel gear 2 611 is fixedly arranged on the top of the outer sleeve 6, and the bevel gear 2 611 is a hollow structure. The bevel gear 2 611 is sleeved with the central shaft 5 without contact, and the bevel gear 2 611 is meshed with the bevel gear 3 241. The stirring rod 2 612 is fixedly connected to the outer sleeve 6. The stirring rod 2 612 is arranged in a circular array with the central axis of the outer sleeve 6 as the reference, and a plurality of groups of unloading holes 613 are evenly arranged under the inclined bottom wall of the stirring rod 2 612. The bottom end of the side wall of the outer sleeve 6 is arranged in a circular array with a plurality of groups of through openings 614, and the through openings 614 penetrate the unloading holes 613 The through opening 614 is arranged corresponding to the oblique opening 54, and the discharge channel 51 is connected with the discharge hole 613 when the oblique opening 54 and the through opening 614 are rotated and aligned. The central shaft 5 synchronously drives the bevel gear 1 53 to rotate in a forward and reverse switching manner, and the bevel gear 1 53 drives the bevel gear 3 241 to rotate in a forward and reverse switching manner. The bevel gear 3 241 drives the bevel gear 2 611 to rotate in a forward and reverse switching manner. The bevel gear 2 611 drives the outer sleeve 6 and the stirring rod 2 612 on the outer sleeve 6 to perform forward and reverse switching, stirring and dispersing in the dispersion cylinder 1. At the same time, the pigment in the powder cylinder 4 is transported to the discharge hole 613 through the discharge channel 51 and the through opening 614, and is dispersed and discharged into the dispersion cylinder 1 by the discharge hole 613. While the stirring rod 2 612 rotates, the pigment is continuously output from the discharge hole 613. The forward and reverse actions help prevent the discharge hole 613 from being blocked, avoid pigment precipitation and accumulation, ensure that the various components of the pigment are evenly dispersed, and improve the mixing quality.

[0019] The reciprocating drive assembly 23 includes a screw rod 231 and a sleeve block 232. One end of the screw rod 231 is rotatably arranged on a group of fixed blocks 24. The other end of the screw rod 231 rotates through another group of fixed blocks 24 and is connected to a bevel gear three 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. A connecting block 251 is fixedly connected to the output end of the piston cylinder 25. The connecting block 251 is fixedly connected to the sleeve block 232. The bevel gear three 241 drives the screw rod 231 to rotate in a forward and reverse switching manner. Under the action of the threaded 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, thereby realizing the piston movement in the piston cylinder 25.

[0020] The air blowing anti-sticking mechanism 21 includes a coil 1 211 and a coil 212, both of which are fixedly installed under the cylinder cover 2, and a plurality of groups of nozzles 1 2111 are arranged in an annular array under the coil 1 211, and a plurality of groups of nozzles 2 2121 are arranged in an annular array under the coil 212, and the nozzles 1 2111 and the nozzles 2 2121 are arranged alternately, and the coil 1 211 is connected to one end of the piston cylinder 25 by an air pipe 1 213, and the coil 2 212 is connected to the other end of the piston cylinder 25 by an air pipe 2 214, and the piston cylinder 25 is pistoned. During the movement, gas is transported or extracted through air pipe 1 213 and air pipe 2 214 respectively, and the suction movement of air pipe 1 213 and air pipe 2 214 is performed alternately. When air jet 1 2111 blows, air jet 2 2121 extracts gas, and when air jet 2 2121 blows, air jet 1 2111 extracts gas. While ensuring the air pressure in the dispersion tube 1 is stable, air jet 1 2111 and air jet 2 2121 continuously blow air to the inner wall of the dispersion tube 1, and the ejected gas is directly blown to the inner wall of the dispersion tube 1 to form an air film to prevent the pigment from sticking. The top opening of the powder barrel 4 is detachably provided with a top cover 41, and the blowing assembly 22 includes an air pipe 3 221 and an air pipe 4 222. One end of the air pipe 3 221 is connected to one end of the piston cylinder 25, and the other end of the air pipe 3 221 is connected to the top cover 41. One end of the air pipe 4 222 is connected to the other end of the piston cylinder 25, and the other end of the air pipe 4 222 is connected to the top cover 41. Both the air pipe 3 221 and the air pipe 4 222 are provided with a one-way valve. When the piston moves in the piston cylinder 25, the gas at both ends of the piston cylinder 25 passes through the air pipe 3 222. 1 and the air pipe 222 blow air into the powder barrel 4 alternately. Due to the reciprocating motion of the piston barrel 25, the gas is continuously and regularly blown into the powder barrel 4, forming a blowing action on the pigment in the powder barrel 4. The blowing of gas increases the fluidity of the pigment in the powder barrel 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 barrel 4 is always downward, ensuring that the pigment can be smoothly discharged and preventing the material from accumulating in the powder barrel 4. The setting of the one-way valve allows the gas to flow only in the set direction to prevent backflow.

[0021] During specific use, the oil and additives for producing oil painting pigments are transported in the dispersion cylinder 1, a sufficient amount of pigment is added to the powder cylinder 4, the cylinder cover 2 is closed on the opening of the dispersion cylinder 1, the top cover 41 is closed on the opening of the powder cylinder 4, and the drive motor 31 is started. The drive 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 transmission wheel 2 33 drives the connecting rod 524 to rotate, and the connecting rod 524 drives the rack 523 to slide on the linkage plate 522. The linkage plate 522 is rotated on the central shaft 5 by the force of the rack 523, and the rack 523 is meshed 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, and the central shaft 5 drives the stirring rod 1 525 to perform forward and reverse switching stirring and dispersion in the dispersion cylinder 1; When the central shaft 5 rotates, it synchronously drives the connecting rod 511 in the feeding channel 51 to rotate, and the connecting rod 511 drives the scraping rod 512 to rotate and scrape the material in the powder barrel 4 to prevent the pigment in the powder barrel 4 from sticking to the wall; the central shaft 5 synchronously drives the bevel gear 1 53 to rotate in a forward and reverse switching manner, the bevel gear 1 53 drives the bevel gear 3 241 to rotate in a forward and reverse switching manner, the bevel gear 3 241 drives the bevel gear 2 611 to rotate in a forward and reverse switching manner, the bevel gear 2 611 drives the outer sleeve 6 and the stirring rod 2 612 on the outer sleeve 6 to perform forward and reverse switching stirring and dispersion in the dispersion barrel 1, and at the same time, the pigment in the powder barrel 4 is transported to the feeding hole 613 through the feeding channel 51 and the through port 614, and is dispersed and discharged into the dispersion barrel 1 through the feeding hole 613. When the stirring rod 2 612 rotates, the pigment is continuously output from the feeding hole 613 and evenly spread into the dispersion barrel 1 for stirring; At the same time, the bevel gear 3 241 drives the screw rod 231 to rotate in a forward and reverse switching manner, and the sleeve block 232 moves back and forth under the action of the thread transmission on the screw rod 231. The sleeve block 232 drives the output end of the piston cylinder 25 to move back and forth through the connecting block 251 to attach Figure 8 Taking the structure in as an example, when the piston in the piston cylinder 25 moves to the left, gas is transported through the air pipe 214 and the air pipe 4 222, and gas is extracted through the air pipe 1 213 and the air pipe 3 221. The air pipe 214 transports gas to the coil 212, and the gas ejected by the air nozzle 2121 is directly blown to the inner wall of the dispersion cylinder 1 to form an air film to prevent the pigment from sticking to the wall, and the air pipe 1 213 extracts the gas of the dispersion cylinder 1 through the air nozzle 1 2111 on the coil 1 211 to ensure that the air pressure in the dispersion cylinder 1 is stable. Due to the setting of the one-way valve on the air pipe 3 221 and the air pipe 4 222, the gas can only be transported in one direction. The gas transported by the air pipe 4 222 is blown into the powder barrel 4, forming a blowing action on the pigment in the powder barrel 4. The blowing of gas increases the fluidity of the pigment in the powder barrel 4. At the same time, the downward airflow ensures that the pigment can be smoothly discharged. Attach Figure 8Taking the structure in as an example, when the piston in the piston cylinder 25 moves to the right, gas is transported through the air pipe 1 213 and the air pipe 3 221, and gas is extracted through the air pipe 2 214 and the air pipe 4 222. The air pipe 1 213 transports gas to the coil 1 211, and the gas ejected by the air nozzle 1 2111 is directly blown to the inner wall of the dispersion cylinder 1 to form an air film to prevent the pigment from sticking to the wall, and the air pipe 2 214 extracts the gas of the dispersion cylinder 1 through the air nozzle 2 2121 on the coil 212 to ensure that the air pressure in the dispersion cylinder 1 is stable. Due to the setting of the one-way valve on the air pipe 3 221 and the air pipe 4 222, the gas can only be transported in one direction. The gas transported by the air pipe 3 221 is blown into the powder barrel 4, forming a blowing action on the pigment in the powder barrel 4. The blowing of gas increases the fluidity of the pigment in the powder barrel 4. At the same time, the downward airflow ensures that the pigment can be smoothly discharged. Under the condition that the internal pressure of the dispersion cylinder 1 is ensured to remain unchanged, the air jets 1 2111 and the air jets 2 2121 continuously blow air to the inner wall of the dispersion cylinder 1. The ejected gas is directly blown to 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 cylinder 4 through the air pipe 3 221 or the air pipe 4 222 to form a blowing action on the pigment in the powder cylinder 4. The blowing of gas increases the fluidity of the pigment in the powder cylinder 4. The airflow generated by the blowing can disturb the pigment particles to prevent them from sticking to each other, thereby ensuring that the pigment can be smoothly discharged.

[0022] The present invention and its embodiments are described above, and such description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if ordinary technicians in the field are inspired by it, without departing from the purpose of the invention, they can design a structure and embodiment similar to the technical solution without creativity, which should belong to 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 group of fixed blocks, the other end of the screw is rotatably passed through another group 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.

2. The oil painting pigment fine dispersion device according to claim 1, characterized in that: A driving motor is fixedly installed at the bottom of the support plate, and the output end of the driving motor passes through the support plate. 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. The rotating shaft of the transmission wheel 2 passes through the support plate. A transmission belt is connected between the transmission wheel 1 and the transmission wheel 2 for transmission. 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. There are multiple groups of stirring rods 1 in a circular array at the bottom end of the central shaft.

3. The oil painting pigment fine dispersion device according to claim 1, characterized in that: The spreading type unloading mechanism includes bevel gear 2 and stirring rod 2. Bevel gear 2 is fixedly arranged at the top end of the outer sleeve. Bevel gear 2 is a hollow structure. Bevel gear 2 is sleeved with the central axis without contact. Bevel gear 2 is meshed with bevel gear 3. Stirring rod 2 is fixedly connected to the outer sleeve. Stirring rod 2 is arranged in a circular array with the central axis of the outer sleeve as the reference. Multiple groups of unloading holes are evenly arranged under the inclined bottom wall of stirring rod 2. The bottom end of the side wall of the outer sleeve is in a circular array with multiple groups of through openings. The through openings are connected with the unloading holes. The through openings are arranged corresponding to the oblique openings. The unloading channel is connected with the unloading hole when the oblique openings are rotationally aligned with the through openings.

4. The oil painting pigment fine dispersion device according to claim 1, characterized in that: The air blowing anti-sticking wall mechanism includes coil one and coil two, and the coil one and coil two are fixedly installed under the cylinder cover. A circular array below the coil has multiple groups of nozzles one, and a circular array below the coil two has multiple groups of nozzles two. The nozzles one and the nozzles two are arranged alternately. The coil one is connected to one end of the piston cylinder through air pipe one, and the coil two is connected to the other end of the piston cylinder through air pipe two.

5. The oil painting pigment fine dispersion device according to claim 1, characterized in that: 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.

6. 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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