A constant temperature anti-drying stirring and color mixing device for art painting pigments

Abstract

This invention relates to the technical field of pigment stirring, and in particular to a constant-temperature anti-drying stirring and mixing device for art painting pigments. The device includes a fixed base and a constant-temperature mixing platform. The constant-temperature mixing platform has a constant-temperature inner cavity containing several pigment storage cups. A central rotating roller is located inside the constant-temperature inner cavity. A cup-mounting assembly, matching the number of pigment storage cups, is located on the outer side of the central rotating roller. Anti-drying stirring components are located on the outside of each pigment storage cup. This invention continuously and evenly stirs the pigments inside the cups throughout the entire process of cup repositioning, simultaneously scraping away pigments accumulated on the inner and bottom walls of the cups. This fundamentally avoids the problems of pigment accumulation and clumping caused by gravity settling and long-term static placement. Furthermore, it eliminates the need for manual pre-treatment by the user, ensuring smooth pigment access and mixing for painting, reducing pigment waste due to drying, and lowering the difficulty of cleaning and maintaining the cups.

Description

Technical Field

[0001] This invention relates to the technical field of pigment stirring, and in particular to a constant-temperature, anti-drying stirring and color mixing device for art painting pigments. Background Technology

[0002] In the process of art painting, water-based paints such as acrylic, watercolor, and gouache are the most widely used. These paints have the characteristics of being prone to settling and accumulating, clumping when left to stand, and drying quickly when exposed to air. Especially in professional large-scale creations and long-term painting assignments, the storage state of the paint directly affects the creation efficiency and the quality of the work. To address this, several paint storage and mixing devices with constant temperature control functions have emerged in the current technology. By controlling the temperature, the drying speed of the paint is slowed down, which solves the core problem of paint drying to a certain extent and has become a commonly used auxiliary device in professional painting creation.

[0003] In practical use, existing constant-temperature color mixing devices still have many unresolved technical defects, failing to meet the core needs of professional painting creation. The pigment storage cups in existing devices are mostly static. During long painting sessions, the pigments in the cups are prone to sedimentation, layering, and clumping at the bottom due to gravity, directly causing color deviations and rendering the pigments unusable for direct application. Even those devices that have added a stirring function to address this issue generally use an independently installed electric stirring structure. This not only requires an additional drive motor and control circuit, significantly increasing the structural complexity and manufacturing cost of the device, and raising the risk of future malfunctions, but also occupies limited internal installation space, negatively impacting the temperature control effect of the constant-temperature chamber. More importantly, the start / stop action of this type of stirring structure is completely disconnected from the user's core operations of changing colors and retrieving pigments. Users must manually trigger the stirring before each retrieving, and this frequent redundant operation disrupts the user's continuous painting rhythm and affects the smoothness of the painting process. Summary of the Invention

[0004] In order to overcome the shortcomings of the prior art, the present invention provides a constant temperature and anti-drying stirring and color mixing device for art painting pigments.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a constant-temperature anti-drying mixing device for art painting pigments, comprising a fixed base and a constant-temperature mixing table, the constant-temperature mixing table being fixedly connected to the upper end of the fixed base. Both the fixed base and the constant-temperature mixing table have slots on their exteriors. The constant-temperature mixing table is connected to an external power source via wires. A constant-temperature inner cavity is formed inside the constant-temperature mixing table. A semiconductor cooling chip is installed at the bottom of the constant-temperature mixing table, and a heat-conducting plate is installed on the side of the constant-temperature mixing table. A heat-conducting silicone pad is installed outside the heat-conducting plate. A temperature sensor is also installed inside the constant-temperature mixing table, and its signal line is connected to the cooling chip and the heat-conducting plate. By setting a constant temperature, the temperature sensor controls the temperature. The temperature inside the color mixing table is regulated. This temperature control mechanism is an existing technology and will not be described in detail here. The temperature-controlled inner cavity contains several pigment storage cups for holding different colored pigments. A central rotating roller is located inside the temperature-controlled inner cavity. The central rotating roller moves through the inner wall of the temperature-controlled inner cavity and extends upwards and outwards from the temperature-controlled color mixing table. A rotating disk is fixedly connected to the upper end of the central rotating roller. The end of the central rotating roller extending upwards from the temperature-controlled color mixing table is fixedly connected to the rotating disk. Rotating the rotating disk drives the central rotating roller to rotate inside the temperature-controlled inner cavity. An external groove is opened on the upper part of the temperature-controlled color mixing table. A transparent acrylic plate is installed on the inner wall of the external groove. The transparent acrylic plate and the inner wall of the external groove are connected by an interference fit.

[0006] The outer side of the central rotating roller is provided with cup-mounting components adapted to the number of pigment storage cups. Each cup-mounting component includes a positioning crossbar, a semi-circular sleeve plate, and an arc groove. The arc groove is opened on the outer side of the pigment storage cup. The semi-circular sleeve plate is movably connected to the inside of the arc groove. The pigment storage cup is engaged with the semi-circular sleeve plate through the arc groove and is positioned on the outside of the semi-circular sleeve plate. The end of the semi-circular sleeve plate away from the inside of the arc groove is fixedly connected to the positioning crossbar. The end of the positioning crossbar away from the semi-circular sleeve plate is fixedly connected to the outer side of the central rotating roller. By rotating the central rotating roller, the positioning crossbar and the semi-circular sleeve plate are driven, and the pigment storage cups are made to revolve stably inside the constant temperature cavity.

[0007] The pigment storage cup is equipped with an anti-dry stirring assembly on its exterior. This assembly includes a top plate and a fixed beam plate. The fixed beam plate is fixedly connected to the upper part of the pigment storage cup, and the top plate is fixedly connected to the upper part of the fixed beam plate. A rotating shaft is rotatably connected inside the top plate, and a stirring rod is fixedly connected to the lower end of the rotating shaft. The stirring rod is L-shaped, and its outer wall is in contact with the inner wall of the pigment storage cup. The rotation of the stirring rod scrapes away the pigment accumulated on the inner wall of the pigment storage cup and mixes it inside the cup. The upper end of the stirring rod... The external fixed connection has a transmission gear, and the transmission gear is provided with a fixed ring plate and a fixed sleeve. The fixed ring plate is fixedly connected to the upper part of the inner wall of the constant temperature cavity, and the fixed sleeve is fixedly connected to the outer ring of the fixed ring plate. The fixed sleeve and the transmission gear are meshed. By rotating the central roller, the positioning crossbar and the semi-circular sleeve plate are driven, and the pigment storage cup rotates inside the constant temperature cavity. The rotation of the pigment storage cup drives the transmission gear to mesh with the fixed sleeve. At this time, the rotation of the transmission gear drives the rotating shaft and makes the stirring rod rotate inside the pigment storage cup.

[0008] As a preferred technical solution of the present invention, two long hanging plates are fixedly connected to the outside of the fixed base, and the two long hanging plates are respectively provided with insertion holes on the outside, and a mixing device for color adjustment is provided on the outside of the two long hanging plates. The mixing device includes a palette body and two mounting plates. The two mounting plates are fixedly connected to the outside of the palette body on both sides. The end of each mounting plate away from the palette body is fixedly connected to a positioning rod. The positioning rod is movably connected to the insertion hole on the outside of the long mounting plate. The two mounting plates are placed on the surface of the two long mounting plates to overlap. The palette body is located below the pigment storage cup.

[0009] As a preferred technical solution of the present invention, the fixed base is externally fixedly connected to two side hanging plates, each side hanging plate is provided with an opening on the outside, and the two side hanging plates are provided with a brush washing assembly for easy cleaning of brushes. The brush washer assembly includes a brush washer base and two side beams. The two side beams are fixedly connected to both sides inside the brush washer base. Lateral hanging rods are fixedly connected to the outside of the two side beams. The two lateral hanging rods are inserted into the openings on the outside of the two side beams. The brush washer base is positioned outside the fixed base through the connection between the lateral hanging rods and the side beams. The brush washer base is located below the palette body and the paint storage cup body.

[0010] As a preferred embodiment of the present invention, slots are provided on both sides of the arc groove, and a right-angle bent rod is slidably connected inside each slot. The short section of the right-angle bent rod is inserted into the slot. A sliding groove is provided on the side of the right-angle bent rod near the semi-circular sleeve plate. The sliding groove is a T-shaped groove. A limiting slide plate adapted to its shape is movably connected inside the sliding groove. The limiting slide plate is fixedly connected to the outside of the semi-circular sleeve plate. The right-angle bent rod moves laterally outside the semi-circular sleeve plate through the limiting slide plate. A limiting round rod is movably connected inside the limiting slide plate. The limiting round rod is fixedly connected inside the sliding groove. The limiting slide plate moves laterally stably inside the sliding groove by the limitation of the limiting round rod. A transverse spring is movably sleeved on the outside of the limiting round rod. The two ends of the transverse spring are respectively fixedly connected to the side of the limiting slide plate facing the inner wall of the sliding groove. The transverse spring applies an elastic force to the limiting slide plate.

[0011] As a preferred embodiment of the present invention, a sealing and shut-off assembly for controlling pigment discharge is provided on the outside of the pigment storage cup. The sealing and shut-off assembly includes an outer ring plate, a sealing post, and a liquid outlet. The liquid outlet is located on the outer wall of the pigment storage cup and communicates with its interior. The sealing post is movably connected to the interior of the liquid outlet and is used to seal the interior of the liquid outlet. The outer ring plate is fixedly connected to the side of the sealing post away from the pigment storage cup. A semi-circular pull ring is fixedly connected to the lower part of the outer ring plate. By inserting the sealing post into the interior of the liquid outlet until the outer ring plate is in contact with the outer wall of the pigment storage cup, the end of the sealing post extending into the interior of the liquid outlet has the same curvature as the inner wall of the pigment storage cup, thereby preventing pigment from accumulating inside the liquid outlet. To prevent the stirring rod from rotating and contacting the sealing column port, the sealing and disconnecting assembly also includes a movable slot and an L-shaped locking plate. The movable slot is located on the outside of the pigment storage cup. A square column is fixedly connected inside the movable slot. A longitudinal spring is movably fitted on the outside of the square column. The L-shaped locking plate is fixedly connected to the outside of the pigment storage cup and is located above the outer ring plate. An L-shaped locking tongue plate is fixedly connected above the outside of the outer ring plate. The L-shaped locking tongue plate is slidably connected inside the movable slot and movably fitted on the outside of the square column. The square column limits the lateral movement of the L-shaped locking tongue plate. The short plate segments of the L-shaped locking tongue plate and the short plate segments of the L-shaped locking plate are respectively fixedly connected to the two ends of the longitudinal spring.

[0012] Compared with the prior art, the beneficial effects that this invention can achieve are: 1. This invention, by incorporating an anti-dry stirring component, ensures that as the user rotates the turntable to switch pigments and the pigment storage cup revolves around the central roller, the L-shaped stirring rod inside the cup rotates synchronously through the meshing of the fixed sleeve teeth and the transmission teeth. Utilizing a structural design where the stirring rod is in full contact with the inner and bottom walls of the pigment storage cup, the pigment inside is continuously and evenly stirred throughout the cup's repositioning process. Simultaneously, pigment accumulated on the inner and bottom walls of the cup is scraped off, fundamentally preventing pigment accumulation and clumping caused by gravity settling and long-term static storage. Furthermore, it eliminates the need for additional manual stirring pretreatment by the user, ensuring smooth pigment access and color mixing for painting, reducing pigment drying and waste, and lowering the difficulty of cleaning and maintaining the cup.

[0013] 2. This invention achieves rapid installation of the pigment storage cup by setting up a cup body locking component, which, together with the horizontal spring elastic self-locking, enables quick disassembly through bidirectional pulling unlocking. The operation is convenient and requires no additional tools. At the same time, the cup body is firmly fixed through axial and circumferential dual limiting, which can adapt to dynamic rotation conditions. It has excellent anti-loosening and anti-detachment effects. The overall structure is simple and compact, and does not interfere with the normal operation of the machine's stirring, temperature control, and material discharge functions. It has precise positioning, stable and reliable operation, and is perfectly suited to the high-frequency use needs of art painting scenarios.

[0014] 3. This invention, by setting up a sealing and on / off component, allows for quick and easy one-handed control of the discharge channel, making operation convenient and mess-free. It achieves continuous and stable pigment discharge without opening the lid, perfectly adapting to the needs of large-volume pigment mixing and significantly improving the efficiency of color mixing operations. The discharge is precise and controllable, and the discharge amount can be flexibly adjusted to reduce pigment waste. At the same time, in the closed state, the curvature of the sealing column is consistent with that of the inner wall of the cup, eliminating dead corners for material accumulation and not interfering with the stirring operation. The discharge is smooth and unblocked, and cleaning and maintenance are convenient. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the constant temperature color mixing table of the present invention; Figure 2 This is a schematic diagram of the semi-circular sleeve plate of the present invention; Figure 3 This is a schematic diagram of the structure of the constant temperature inner cavity of the present invention; Figure 4 This is a schematic diagram of the structure of the pigment storage cup of the present invention; Figure 5 This is a cross-sectional view of the pigment storage cup of the present invention; Figure 6 For the present invention Figure 1 A magnified schematic diagram of the partial structure at point A in the middle; Figure 7 This is a cross-sectional view of the right-angle bent rod of the present invention; Figure 8This is a schematic diagram of the structure of the present invention after the seal is separated from the liquid outlet. Figure 9 This is a schematic diagram of the structure of the palette body of the present invention; Figure 10 This is a schematic diagram of the structure of the brush washer base of the present invention.

[0016] The components include: 10. Fixed base; 11. Thermostatic mixing table; 12. External groove; 13. Transparent acrylic sheet; 14. Thermostatic inner cavity; 15. Pigment storage cup; 16. Side hanging plate; 17. Long hanging plate; 18. Central rotating roller; 19. Rotating disk; 20. Positioning crossbar; 21. Semi-circular sleeve plate; 22. Right-angle bent rod; 23. Arc groove; 24. Sliding groove; 25. Horizontal spring; 26. Limiting round rod; 27. Limiting sliding plate; 28. Slot; 30. Top plate; 3 1. Fixed beam plate; 32. Stirring rod; 33. Rotating shaft; 34. Transmission gear; 35. Fixed ring plate; 36. Fixed sleeve gear; 40. Outer ring sleeve plate; 41. Sealing column; 42. Semi-circular pull ring; 43. Liquid outlet; 44. L-shaped locking tongue plate; 45. Longitudinal spring; 46. Movable slot; 47. Square long column; 48. L-shaped locking plate; 50. Palette body; 51. Overlay plate; 52. Positioning hanging rod; 60. Brush washer base; 61. Side beam plate; 62. Lateral hanging rod. Detailed Implementation

[0017] To make the technical means, creative features, and achieved objectives and effects of this invention easier to understand, the invention is further described below with reference to specific embodiments. However, the following embodiments are merely preferred embodiments of this invention and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments described herein without creative effort are all within the protection scope of this invention. Unless otherwise specified, the experimental methods in the following embodiments are conventional methods, and the materials and reagents used in the following embodiments are commercially available unless otherwise specified.

[0018] Example: Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, a constant-temperature anti-drying mixing device for art painting pigments includes a fixed base 10 and a constant-temperature mixing table 11. The constant-temperature mixing table 11 is fixedly connected to the upper end of the fixed base 10. Both the fixed base 10 and the constant-temperature mixing table 11 have slots on their exteriors. The constant-temperature mixing table 11 is connected to an external power source via wires. A constant-temperature inner cavity 14 is formed inside the constant-temperature mixing table 11. A semiconductor cooling chip is installed at the bottom of the constant-temperature mixing table 11, and a heat-conducting plate is installed on the side of the constant-temperature mixing table 11. A heat-conducting silicone pad is installed on the outside of the heat-conducting plate. A temperature sensor is also installed inside the constant-temperature mixing table 11. The signal line of the temperature sensor is connected to an external PID controller. The output of the controller is electrically connected to the drive circuit of the semiconductor cooling chip and the heat-conducting plate. The temperature of the constant-temperature inner cavity is controlled through a closed-loop regulation based on the real-time feedback of the temperature sensor. Heat is transferred through the inner wall of the constant-temperature mixing table 11. This constant-temperature mechanism is an existing technology and will not be described in detail here. The interior of the constant-temperature inner cavity 14... The system is equipped with twelve pigment storage cups 15 for holding different colored pigments. These twelve pigment storage cups 15 are placed inside the thermostatic mixing table 11 to maintain a constant temperature of 18-22°C. A central rotating roller 18 is installed inside the thermostatic cavity 14, extending movably through the inner wall of the cavity and upwards outwards from the thermostatic mixing table 11. A rotating disk 19 is fixedly connected to the upper end of the central rotating roller 18, which extends outwards from the thermostatic mixing table. One end of the outer top of the 11 is fixedly connected to the rotating disk 19. By rotating the rotating disk 19, the central rotating roller 18 is driven to rotate inside the constant temperature inner cavity 14. An external groove 12 is opened on the upper part of the constant temperature color mixing table 11. A transparent acrylic plate 13 is provided on the inner wall of the external groove 12. The transparent acrylic plate 13 and the inner wall of the external groove 12 are connected by an interference fit. By setting the transparent acrylic plate 13, it is easy for the user to observe the pigment storage cup 15 placed inside the constant temperature color mixing table 11.

[0019] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 7As shown, the outer side of the central roller 18 is provided with cup-mounting assemblies adapted to the number of pigment storage cups 15. These cup-mounting assemblies are used to install the pigment storage cups 15. Each cup-mounting assembly includes a positioning crossbar 20, a semi-circular sleeve 21, and an arc groove 23. The arc groove 23 is formed on the outer side of the pigment storage cup 15, and the semi-circular sleeve 21 is movably connected inside the arc groove 23. The pigment storage cups 15 are connected to the semi-circular sleeve 21 via the arc groove 23. A locking fit is formed, thereby positioning it on the outside of the semi-circular sleeve 21. One end of the semi-circular sleeve 21 away from the inside of the arc groove 23 is fixedly connected to the positioning crossbar 20. The other end of the positioning crossbar 20 away from the semi-circular sleeve 21 is fixedly connected to the side of the center rotating roller 18. By rotating the center rotating roller 18, the positioning crossbar 20 and the semi-circular sleeve 21 are driven, and the pigment storage cup 15 is made to revolve stably inside the constant temperature inner cavity 14. The arc groove 23 has locking slots 28 on both sides. Each slot 28 has a right-angle bent rod 22 slidably connected inside, with the short section of the right-angle bent rod 22 inserted inside the slot 28. A sliding groove 24 is provided on the side of the right-angle bent rod 22 near the semi-circular sleeve 21. The sliding groove 24 is a T-shaped groove, and a limiting slide plate 27 adapted to its shape is movably connected inside the sliding groove 24. The limiting slide plate 27 is fixedly connected to the outside of the semi-circular sleeve 21. The right-angle bent rod 22 is positioned outside the semi-circular sleeve 21 via the limiting slide plate 27. The part moves laterally. The limiting slide plate 27 is internally connected to the limiting rod 26, which is fixedly connected to the inside of the slide groove 24. The limiting slide plate 27 moves laterally stably inside the slide groove 24 by the limitation of the limiting rod 26. The limiting rod 26 is externally fitted with a transverse spring 25. The two ends of the transverse spring 25 are fixedly connected to the side of the limiting slide plate 27 facing the inner wall of the slide groove 24, and the transverse spring 25 applies an elastic force to the limiting slide plate 27.

[0020] Under normal conditions, the elastic restoring force of the transverse spring 25 pushes the limiting slide plate 27, which in turn drives the right-angle bent rod 22 to move laterally, so that the short rod section of the right-angle bent rod 22 is stably inserted into the slot 28, thereby limiting the pigment storage cup 15 axially and circumferentially, and firmly fixing it to the outside of the semi-circular sleeve plate 21.

[0021] When it is necessary to disassemble the pigment storage cup 15, pull the long sections of the right-angle bending rods 22 on both sides in the direction away from each other. The right-angle bending rods 22 on both sides move laterally at the same time and drive the corresponding lateral springs 25 to compress, so that the short sections of the right-angle bending rods 22 are completely disengaged from the slots 28, releasing the locking limit between the pigment storage cup 15 and the semi-circular sleeve plate 21. At this time, the pigment storage cup 15 can be quickly removed from the outside of the semi-circular sleeve plate 21 to carry out operations such as cup cleaning and pigment refilling.

[0022] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, an anti-dry stirring assembly is provided on the outside of the pigment storage cup 15. The anti-dry stirring assembly includes a top plate 30 and a fixed beam plate 31. The fixed beam plate 31 is fixedly connected to the upper end of the pigment storage cup 15, and the top plate 30 is fixedly connected to the upper part of the fixed beam plate 31. A rotating shaft 33 is rotatably connected inside the top plate 30. A stirring rod 32 is fixedly connected to the lower end of the rotating shaft 33. The stirring rod 32 is an L-shaped rod, and its outer wall is in contact with the inner wall of the pigment storage cup 15. The rotation of the stirring rod 32 scrapes off the pigment accumulated on the inner wall of the pigment storage cup 15 and mixes it inside the pigment storage cup 15. A transmission gear 34 is fixedly connected to the upper end of the stirring rod 32. A fixed ring plate 35 and a fixed sleeve gear 36 are provided on the outside of the transmission gear 34. The fixed ring plate 35 is fixedly connected to... The fixing sleeve 36 is fixedly connected to the outer ring of the fixing ring plate 35 above the inner wall of the constant temperature inner cavity 14. The fixing sleeve 36 and the transmission tooth 34 are meshed. By rotating the central rotating roller 18, the positioning crossbar 20 and the semi-circular sleeve plate 21 are driven, and the pigment storage cup 15 is rotated inside the constant temperature inner cavity 14. The rotation of the pigment storage cup 15 drives the transmission tooth 34 to mesh with the fixing sleeve 36. At this time, the rotation of the transmission tooth 34 drives the rotating shaft 33 and causes the stirring rod 32 to rotate inside the pigment storage cup 15. When the pigment storage cup 15 rotates inside the constant temperature inner cavity 14, the setting of the cup body clamping assembly and the fixing ring plate 35 and the fixing sleeve 36 effectively limits the pigment storage cup 15 and prevents the pigment storage cup 15 from dislodging from the outside of the semi-circular sleeve plate 21 when rotating.

[0023] When it is necessary to change the pigment color for material retrieval, the rotating disk 19 is rotated, which drives the central rotating roller 18 to rotate synchronously. Then, through the cup body clamping assembly composed of the positioning crossbar 20, the semi-circular sleeve plate 21 and the right-angle bending rod 22, each pigment storage cup 15 is driven to revolve around the central rotating roller 18 in the constant temperature inner cavity 14.

[0024] While the pigment storage cup 15 revolves, the transmission gear 34 is driven to revolve synchronously through the fixed beam plate 31 and the top plate 30 at its upper end. Since the fixed sleeve gear 36 is fixed to the inner wall of the constant temperature inner cavity 14 by the fixed ring plate 35 and remains stationary, the transmission gear 34 continuously meshes with the fixed sleeve gear 36 during the revolution to form a planetary transmission, thereby driving the transmission gear 34 to rotate.

[0025] The rotation of the transmission gear 34 is synchronously transmitted to the stirring rod 32 through the rotating shaft 33, so that the stirring rod 32 rotates synchronously inside the pigment storage cup 15. During the rotation of the stirring rod 32, its outer wall is continuously in contact with the inner wall and bottom wall of the pigment storage cup 15, scraping off the pigment accumulated on the inner wall and bottom wall of the cup, and at the same time continuously and evenly stirring the pigment in the cup to prevent pigment from settling, accumulating, clumping and drying.

[0026] Therefore, when the pigment storage cup 15 corresponding to the target pigment rotates with the central roller 18 to the slotted opening for picking up the pigment outside the constant temperature mixing table 11, the pigment in the cup has been uniformly mixed, and the user can directly take out the pigment without sedimentation or clumping, ensuring the smoothness of color mixing and painting.

[0027] like Figure 2 , Figure 3 , Figure 9 and Figure 10 As shown, two long hanging plates 17 are fixedly connected to the outside of the fixed base 10. Each of the two long hanging plates 17 has an insertion hole on its exterior. A mixing device for color mixing is installed on the exterior of the two long hanging plates 17. The mixing device includes a palette body 50 and two mounting plates 51. The two mounting plates 51 are fixedly connected to both sides of the outside of the palette body 50. A positioning rod 52 is fixedly connected to the end of each mounting plate 51 away from the palette body 50. The positioning rod 52 is movably connected to the insertion hole on the outside of the long hanging plate 17, and the two mounting plates 51 are placed on the surfaces of the two long hanging plates 17 to overlap. The palette body 50 is located below the pigment storage cup body 15. By lifting the palette body 50 upwards, the two mounting plates 51 and the positioning rod 52 are disengaged from the long hanging plates 17. The external insertion hole allows the palette body 50 to be removed from the fixed base 10 for cleaning. Two side hanging plates 16 are fixedly connected to the outside of the fixed base 10. Each side hanging plate 16 has an opening on its outside. The two side hanging plates 16 are equipped with a brush washer assembly for easy cleaning of brushes. The brush washer assembly includes a brush washer base 60 and two side beam plates 61. The two side beam plates 61 are fixedly connected to the two sides inside the brush washer base 60. The two side beam plates 61 are fixedly connected to the outside of each side beam plate 61. The two side hanging rods 62 are inserted into the openings on the outside of the two side hanging plates 16. The brush washer base 60 is positioned outside the fixed base 10 through the connection between the side hanging rods 62 and the side hanging plates 16. The brush washer base 60 is located below the palette body 50 and the paint storage cup 15.

[0028] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 8As shown, the pigment storage cup 15 is externally equipped with a sealing and shut-off assembly for controlling pigment discharge. This assembly includes an outer ring plate 40, a sealing post 41, and a liquid outlet 43. The liquid outlet 43 is located on the outer wall of the pigment storage cup 15 and communicates with its interior. The sealing post 41 is movably connected to the interior of the liquid outlet 43, sealing it. The outer ring plate 40 is fixedly connected to the side of the sealing post 41 away from the pigment storage cup 15. A semi-circular pull ring 42 is fixedly connected to the lower part of the outer ring plate 40. By inserting the sealing post 41 into the liquid outlet 43 until the outer ring plate 40 adheres to the outer wall of the pigment storage cup 15, the end of the sealing post 41 extending into the liquid outlet 43 has the same curvature as the inner wall of the pigment storage cup 15, thus preventing pigment accumulation inside the liquid outlet 43 and simultaneously preventing the stirring rod from... The 32 rotates and contacts the port of the sealing column 41. The blocking and disconnecting assembly also includes a movable slot 46 and an L-shaped locking plate 48. The movable slot 46 is opened on the outside of the pigment storage cup 15. A square column 47 is fixedly connected inside the movable slot 46. A longitudinal spring 45 is movably sleeved on the outside of the square column 47. The L-shaped locking plate 48 is fixedly connected to the outside of the pigment storage cup 15 and is located above the outer ring plate 40. An L-shaped locking tongue plate 44 is fixedly connected above the outside of the outer ring plate 40. The L-shaped locking tongue plate 44 is slidably connected inside the movable slot 46 and movably sleeved on the outside of the square column 47. The square column 47 limits the lateral movement of the L-shaped locking tongue plate 44. The short plate section of the L-shaped locking tongue plate 44 and the short plate section of the L-shaped locking plate 48 are respectively fixedly connected to the two ends of the longitudinal spring 45 on the side that are relatively close to each other.

[0029] When a large amount of pigment needs to be mixed, hold the semi-circular pull ring 42 and pull the outer ring plate 40 outward to make the sealing column 41 disengage from the liquid outlet 43. At this time, the pigment inside the pigment storage cup 15 can flow out through the liquid outlet 43 and fall into the palette body 50 below. After introducing multiple different colors of pigment into the palette body 50 in sequence, the pigment in the palette body 50 can be mixed with a brush to achieve the mixed use of large amounts of pigment.

[0030] Working principle: Step 1: The pigment storage cup is locked in place under normal conditions. Under normal conditions, the transverse spring 25 pushes the limiting slide plate 27 through elastic restoring force, causing the right-angle bent rod 22 to move laterally, so that the short section of the right-angle bent rod 22 is stably inserted into the slot 28 of the pigment storage cup 15, thus limiting the pigment storage cup 15 axially and circumferentially, and firmly fixing it to the outside of the semi-circular sleeve plate 21, completing the tool-free quick installation.

[0031] Step 2: Pigment color changing and material handling, along with coordinated anti-caking stirring: The cup body revolves: the rotating disk 19 drives the central rotating roller 18 to rotate synchronously. Through the cup body clamping assembly composed of the positioning crossbar 20, the semi-circular sleeve plate 21 and the right-angle bending rod 22, each pigment storage cup 15 revolves around the central rotating roller 18 in the constant temperature inner cavity 14.

[0032] Planetary transmission: While the pigment storage cup 15 revolves, the transmission gear 34 is driven to revolve synchronously through the fixed beam plate 31 and the top plate 30 at its upper end. It continuously meshes with the fixed sleeve gear 36, which is fixed to the inner wall of the constant temperature inner cavity 14 by the fixed ring plate 35, forming a planetary transmission and driving the transmission gear 34 to rotate.

[0033] Synchronous stirring to prevent clumping: The rotation of the transmission gear 34 is synchronously transmitted to the stirring rod 32 through the rotating shaft 33, driving the stirring rod 32 to rotate within the pigment storage cup 15; the stirring rod 32 is in full contact with the inner wall and bottom wall of the cup, synchronously scraping off the accumulated pigment and continuously and evenly stirring the pigment in the cup, thus preventing pigment from settling, accumulating, clumping and drying.

[0034] Smooth material handling: When the pigment storage cup 15 corresponding to the target pigment rotates to the material handling position of the external slot of the constant temperature mixing table 11, the pigment in the cup has been uniformly mixed and can be directly used by the user.

[0035] Step 3: Large-dose pigment color mixing and dispensing operation: When a large amount of pigment needs to be mixed, hold the semi-circular pull ring 42 and pull the outer ring plate 40 outward, causing the sealing column 41 to disengage from the liquid outlet 43 of the pigment storage cup 15, opening the discharge channel; the pigment in the cup flows smoothly out through the liquid outlet 43 and falls into the palette 50 below; after introducing multiple different colors of pigment into the palette 50 as needed, large amounts of pigment can be mixed and used with a paintbrush.

[0036] Step 4: Quick-release maintenance of the pigment storage cup: When it is necessary to disassemble the pigment storage cup 15, pull the long sections of the right-angle bending rods 22 on both sides in the direction away from each other, which will cause the corresponding horizontal springs 25 to be compressed, so that the short sections of the right-angle bending rods 22 are completely disengaged from the slots 28, releasing the locking limit between the pigment storage cup 15 and the semi-circular sleeve plate 21. The cup can then be quickly removed to carry out cup cleaning, pigment refilling and other operations.

[0037] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. A constant-temperature anti-drying mixing device for art painting pigments, comprising a fixed base (10) and a constant-temperature mixing table (11), the constant-temperature mixing table (11) being fixedly connected to the upper end of the fixed base (10), and the constant-temperature mixing table (11) having a constant-temperature inner cavity (14) inside, characterized in that, The constant temperature inner cavity (14) is provided with a number of pigment storage cups (15). The constant temperature inner cavity (14) is provided with a central rotating roller (18). The upper end of the central rotating roller (18) is fixedly connected to a rotating disk (19). The outer side of the central rotating roller (18) is provided with a cup body clamping assembly adapted to the number of pigment storage cups (15). The cup body clamping assembly is used to install the pigment storage cups (15). The pigment storage cup (15) is provided with an anti-dry stirring assembly on the outside. The anti-dry stirring assembly includes a top plate (30) and a fixed beam plate (31). The fixed beam plate (31) is fixedly connected to the upper end of the pigment storage cup (15). The top plate (30) is fixedly connected to the upper part of the fixed beam plate (31). The top plate (30) is rotatably connected to a rotating shaft (33). The lower end of the rotating shaft (33) is fixedly connected to a stirring rod (32). The upper end of the stirring rod (32) is fixedly connected to a transmission gear (34). The transmission gear (34) is provided with a fixed ring plate (35) and a fixed sleeve tooth (36) on the outside. The fixed ring plate (35) is fixedly connected to the upper part of the inner wall of the constant temperature inner cavity (14). The fixed sleeve tooth (36) is fixedly connected to the outer ring of the fixed ring plate (35). The fixed sleeve tooth (36) and the transmission gear (34) are meshed.

2. The art painting pigment constant temperature anti-drying stirring and color mixing device according to claim 1, characterized in that, Each of the cup body mounting components includes a positioning crossbar (20), a semi-circular sleeve plate (21), and an arc groove (23). The arc groove (23) is opened on the side outside the pigment storage cup body (15). The semi-circular sleeve plate (21) is movably connected to the inside of the arc groove (23). The end of the semi-circular sleeve plate (21) away from the inside of the arc groove (23) is fixedly connected to the positioning crossbar (20). The end of the positioning crossbar (20) away from the semi-circular sleeve plate (21) is fixedly connected to the side outside the central rotating roller (18).

3. The art painting pigment constant temperature anti-drying stirring and color mixing device according to claim 1, characterized in that, The fixed base (10) is externally fixedly connected to two long hanging plates (17), and the two long hanging plates (17) are respectively provided with insertion holes on the outside. The two long hanging plates (17) are provided with a mixing device for color adjustment on the outside. The mixing device includes a palette body (50) and two mounting plates (51). The two mounting plates (51) are fixedly connected to the two sides of the outside of the palette body (50). The end of each mounting plate (51) away from the palette body (50) is fixedly connected to a positioning rod (52). The positioning rod (52) is movably connected to the insertion hole on the outside of the long mounting plate (17). The two mounting plates (51) are placed on the surface of the two long mounting plates (17) respectively for overlapping.

4. The art painting pigment constant temperature anti-drying stirring and color mixing device according to claim 3, characterized in that, The fixed base (10) is externally fixedly connected to two side plates (16), each side plate (16) is provided with an opening on the outside, and the two side plates (16) are provided with a brush washer assembly for easy cleaning of brushes. The brush washer assembly includes a brush washer base (60) and two side beams (61). The two side beams (61) are fixedly connected to the two sides inside the brush washer base (60), and lateral hanging rods (62) are fixedly connected to the outside of the two side beams (61).

5. The art painting pigment constant temperature anti-drying stirring and color mixing device according to claim 1, characterized in that, Both sides of the arc groove (23) are provided with slots (28). Each slot (28) is slidably connected with a right-angle bent rod (22). The short section of the right-angle bent rod (22) is inserted into the slot (28). A sliding groove (24) is provided on the side of the right-angle bent rod (22) near the semi-circular sleeve (21). The sliding groove (24) is a T-shaped groove. A limiting slide plate (27) that matches its shape is movably connected inside the sliding groove (24). The limiting slide plate (27) is fixedly connected to the outside of the semi-circular sleeve (21).

6. The art painting pigment constant temperature anti-drying stirring and color mixing device according to claim 5, characterized in that, The limiting slide plate (27) is internally connected to a limiting round rod (26), which is fixedly connected to the inside of the slide groove (24). A transverse spring (25) is movably sleeved on the outside of the limiting round rod (26), and the two ends of the transverse spring (25) are respectively fixedly connected to the side of the limiting slide plate (27) and the inner wall of the slide groove (24) facing each other.

7. The art painting pigment constant temperature anti-drying stirring and color mixing device according to claim 1, characterized in that, The pigment storage cup (15) is provided with a sealing and shut-off component for controlling pigment discharge on the outside; The sealing and shut-off assembly includes an outer ring sleeve (40), a sealing column (41), and a liquid outlet (43). The liquid outlet (43) is located on the outer wall of the pigment storage cup (15) and communicates with its interior. The sealing column (41) is movably connected to the interior of the liquid outlet (43) and is used to seal the interior of the liquid outlet (43). The outer ring sleeve (40) is fixedly connected to the side of the sealing column (41) away from the pigment storage cup (15). A semi-circular pull ring (42) is fixedly connected to the lower part of the outer ring sleeve (40).

8. The art painting pigment constant temperature anti-drying stirring and color mixing device according to claim 7, characterized in that, The blocking and shut-off assembly also includes a movable slot (46) and an L-shaped locking plate (48). The movable slot (46) is opened on the outside of the pigment storage cup (15). A square column (47) is fixedly connected inside the movable slot (46). A longitudinal spring (45) is movably sleeved on the outside of the square column (47). The L-shaped locking plate (48) is fixedly connected to the outside of the pigment storage cup (15). An L-shaped locking tongue plate (44) is fixedly connected to the upper part of the outer ring sleeve plate (40). The L-shaped locking tongue plate (44) is slidably connected to the inside of the movable slot (46). The L-shaped locking tongue plate (44) is movably sleeved on the outside of the square long column (47). The square long column (47) limits the lateral movement of the L-shaped locking tongue plate (44). The short plate section of the L-shaped locking tongue plate (44) and the short plate section of the L-shaped locking plate (48) are respectively fixedly connected to the two ends of the longitudinal spring (45) on the side that is relatively close to each other.

9. A constant-temperature, anti-drying stirring and color-mixing device for art painting pigments according to claim 1, characterized in that, The constant temperature color mixing table (11) has an external groove (12) on its upper part. The inner wall of the external groove (12) is provided with a transparent acrylic plate (13). The transparent acrylic plate (13) and the inner wall of the external groove (12) are connected by an interference fit.

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