Fine grinding device for art pigments

Abstract

The application discloses a fine grinding device for art pigments and belongs to the technical field of art pigment grinding. The device comprises a grinding body arranged at the bottom of the horizontal part of a support, the grinding body being movable up and down along the vertical direction and capable of rotating around its own axis; and a grinding cylinder which is adapted to be arranged below the grinding body and capable of moving up and down vertically synchronously with the grinding body. In the application, the grinding body is driven to rotate and move up and down reciprocatingly at high frequency by a driving motor, so that the art pigments are ground in a combined grinding mode of rotary shearing and reciprocating impact and extrusion. The continuous and stable grinding effect is formed by the extension and retraction of a reset spring, the problems of single grinding mode, uneven stress and existence of grinding blind area of the grinding equipment are avoided, the fine grinding degree of the art pigments is improved, the art pigment agglomerates can be fully broken, the art pigment particles can be more uniformly and finely ground, and the overall grinding efficiency and product quality are improved.

Description

Technical Field

[0001] This invention belongs to the field of art pigment grinding technology, and in particular relates to a fine grinding device for art pigments. Background Technology

[0002] In the art pigment production and processing industry, fine grinding of art pigments is the core process that determines the fineness of the pigment paste, the uniformity of coloring, and the quality of the painting. Grinding equipment is widely used in the mass production of various art pigments such as gouache, oil paint, acrylic, and traditional Chinese painting pigments. The raw materials of art pigments are mostly mixtures of powder and agglomerates. The initial particle size of the raw materials is uneven. Some pigments are prone to forming hard lumps after being damp or squeezed. If the grinding is not sufficient, it will directly lead to problems such as color difference, mottled spots, and uneven brushing in the later painting process. Therefore, there are certain requirements for grinding equipment.

[0003] According to Chinese Patent Publication No. CN112892793B, an art pigment grinding device is disclosed, including a frame and a grinding cylinder assembly. The frame is a stepped platform with multiple grinding cylinder bases fixed on top and one grinding cylinder base fixed below. Each grinding cylinder base has a grinding cylinder assembly. The top of the grinding cylinder assembly is a feeding chamber, and the grinding cylinder assembly discharges material from the bottom periphery. A discharge groove is surrounded by the grinding cylinder assembly, and a discharge pipe is connected to the discharge groove. The discharge pipes connected to the multiple grinding cylinder assemblies above the frame are connected to the feeding chamber of the grinding cylinder assembly below the frame.

[0004] However, in the above scheme, the equipment relies on only single rotational friction to complete the grinding operation, which has the following disadvantages: during the grinding process, the rotational shearing force is of a single form, making it difficult to quickly break up and disperse hard art pigment clumps, resulting in low grinding efficiency and large differences in particle size of finished art pigments. Summary of the Invention

[0005] The purpose of this invention is to solve the problems of low grinding efficiency and large particle size differences in finished art pigments caused by the single form of rotational shearing force during the grinding process. Therefore, a fine grinding device for art pigments is proposed.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A fine grinding device for art pigments includes a support, the support being composed of a vertical part and a horizontal part, and further includes: The grinding body is located at the bottom of the horizontal part of the support. The grinding body can move up and down in the vertical direction and can rotate around its own axis. The grinding cylinder is adapted to be located below the grinding body, and the grinding cylinder can move vertically up and down synchronously with the grinding body.

[0007] Preferred options also include: A rotating plate is rotatably mounted at the bottom of the horizontal section of the bracket. Two reciprocating lead screws are symmetrically arranged on both sides of the bottom of the rotating plate. The reciprocating lead screws are rotatably connected to the rotating plate, and the grinding body is drivenly connected to the reciprocating lead screws.

[0008] Preferred options also include: Two transmission gears are fixedly connected to the end of the reciprocating screw away from the grinding body. A gear ring is fixedly connected to the bottom of the horizontal part of the bracket, and the transmission gear meshes with the gear ring.

[0009] Preferred options also include: The drive motor is fixedly installed on the top of the horizontal part of the bracket, and one end of the output shaft of the drive motor is fixedly connected to the top of the rotating plate.

[0010] Preferred options also include: The grinding cylinder is horizontally inserted into the mounting cylinder; Multiple telescopic rods are arranged in a circular array at the bottom of the mounting cylinder, and the top of each telescopic rod is fixedly connected to the bottom of the mounting cylinder. A base plate is connected to the bottom of the vertical part of the bracket, and the end of the telescopic rod away from the mounting cylinder is fixedly connected to the top of the base plate; Multiple return springs are provided, which are sleeved on the outer surface of the telescopic rod, and the two ends of the return springs are fixedly connected to the bottom of the mounting cylinder and the top of the base plate, respectively.

[0011] Preferred options also include: A limiting plate is detachably installed on one side of the mounting cylinder, and the limiting plate and the mounting cylinder together form a limiting structure for the grinding cylinder; Two locking blocks are connected to both sides of the limiting plate. The mounting cylinder has two locking slots, and the locking blocks are inserted into the locking slots for assembly.

[0012] Preferred options also include: A limiting block is connected to the outer periphery of the grinding cylinder. A limiting groove is provided on one side of the inner wall of the mounting cylinder. The limiting block is inserted into the limiting groove for assembly. The support base is fixedly connected to the top of the base plate and is located below the mounting cylinder.

[0013] Preferred options also include: A fixed motor is provided, and a cavity is provided inside the grinding body, into which the fixed motor is installed; The deflection block is connected to a rotating shaft at the bottom of the fixed motor output shaft. The rotating shaft is rotatably connected to the bottom wall of the cavity, and the deflection block is fixedly connected to the rotating shaft.

[0014] Compared with existing technologies, the fine grinding device for art pigments that adopts the above technical solution has the following beneficial effects: 1. In this invention, the grinding body is simultaneously driven by a drive motor to rotate and reciprocate up and down at high frequency, thereby achieving rotary grinding of the art pigments inside the grinding cylinder. When the grinding cylinder is rigidly supported against the support base, the continuous downward pressure of the grinding body can complete the impact grinding of the art pigments. This allows the grinding body to grind the art pigments using a composite grinding method that combines rotary shearing and reciprocating impact extrusion. Combined with the extension and retraction of the return spring, a continuous and stable grinding effect is achieved. This avoids the problems of single grinding mode, uneven force, and grinding blind spots in grinding equipment, thereby improving the grinding fineness of the art pigments. It can fully break up art pigment clumps, making the art pigment particles more uniform and delicate, and improving the overall grinding efficiency and product quality.

[0015] 2. In this invention, a fixed motor drives the deflection block to rotate continuously, which dynamically disturbs and stirs the art pigments in the grinding cylinder. The deflection block keeps running throughout the entire process of the grinding body lifting and rotating, continuously turning the art pigments, thereby breaking up the accumulated art pigments and avoiding the problems of compacted accumulation and stratification of coarse and fine particles caused by long-term grinding, thus improving the overall grinding uniformity and fineness.

[0016] 3. In this invention, the grinding cylinder is circumferentially positioned by the limiting block and the limiting groove, and the T-shaped locking block and T-shaped locking groove of the limiting plate quickly lock the horizontal position, so as to realize the quick assembly and disassembly of the grinding cylinder, which is convenient for material replacement, cleaning and daily maintenance. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 2 This is a schematic diagram of the three-dimensional disassembled structure of the present invention; Figure 3 For the present invention Figure 2 Enlarged structural diagram of section A; Figure 4 This is a three-dimensional structural diagram of the grinding body, fixed motor, and deflection block in this invention; Figure 5 This is a three-dimensional structural diagram of the mounting cylinder, telescopic rod, and return spring in this invention; Figure 6 This is a three-dimensional disassembled structural diagram of the mounting cylinder and grinding cylinder in this invention.

[0018] Legend: 1. Bracket; 2. Drive motor; 3. Grinding body; 4. Limiting plate; 5. Telescopic rod; 6. Return spring; 7. Support base; 8. Mounting cylinder; 9. Gear ring; 10. Transmission gear; 11. Rotating plate; 12. Reciprocating screw; 13. Fixed motor; 14. Deflection block; 15. Grinding cylinder; 16. Limiting block; 17. Limiting groove; 18. Locking block; 19. Locking slot; 20. Base plate. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] A fine grinding device for art pigments includes a support 1, which is composed of a vertical part and a horizontal part, wherein the vertical part and the horizontal part form an L-shaped structure, and further includes: The grinding body 3 is located at the bottom of the horizontal part of the support 1. The grinding body 3 can move up and down in the vertical direction and can rotate around its own axis. The upper part of the grinding body 3 is a smooth cylinder, and the bottom is a flat grinding and pressure-bearing end face. When pressed down, the end face is in contact with the art paint inside the grinding cylinder 15. The grinding body 3 is equipped with a lead screw sleeve for transmission connection with the reciprocating lead screw 12. The reciprocating lead screw 12 drives the grinding body 3 to rise, fall and rotate as a whole. Grinding cylinder 15 is adapted to be disposed below grinding body 3. Grinding cylinder 15 can move vertically up and down synchronously with grinding body 3. The inner wall of grinding cylinder 15 is in contact with the outer surface of grinding body 3. See Figures 2-3 Rotating plate 11 is rotatably mounted at the bottom of the horizontal part of bracket 1; Two reciprocating lead screws 12 are symmetrically arranged on both sides of the bottom of the rotating plate 11. The reciprocating lead screws 12 are rotatably connected to the rotating plate 11. The grinding body 3 is drivenly connected to the reciprocating lead screws 12. The rotating plate 11 has round holes on both sides, and bearings are embedded in the round holes. One end of the reciprocating lead screw 12 is a smooth shaft structure without threads, and this part is rotatably connected to the bearing. Two transmission gears 10 are fixedly connected to the end of the reciprocating screw 12 away from the grinding body 3. The transmission gears 10 are located on the top of the rotating plate 11, and the bottom surface of the transmission gears 10 is in contact with the top surface of the rotating plate 11. The two transmission gears 10 are arranged in a mirror symmetrical manner along the length center line of the rotating plate 11. The toothed ring 9 is fixedly connected to the bottom of the horizontal part of the bracket 1. The transmission gear 10 meshes with the toothed ring 9. The toothed ring 9 and the grinding body 3 are coaxially arranged. The drive motor 2 is fixedly installed on the top of the horizontal part of the bracket 1. One end of the output shaft of the drive motor 2 is fixedly connected to the top of the rotating plate 11. The drive motor 2 is installed on the top of the horizontal part of the bracket 1 through the mounting plate. See Figure 5 The grinding cylinder 15 is horizontally inserted into the mounting cylinder 8. The mounting cylinder 8 is a cylindrical sleeve structure with an open top. The inner cavity size of the mounting cylinder 8 matches the outer diameter of the grinding cylinder 15. A horizontally penetrating insertion port is opened on one side of the side wall of the mounting cylinder 8 to facilitate the horizontal loading and unloading of the grinding cylinder 15. Multiple telescopic rods 5 are arranged in a circular array at the bottom of the mounting cylinder 8. The top of each telescopic rod 5 is fixedly connected to the bottom of the mounting cylinder 8. The multiple telescopic rods 5 can provide support and guidance for the mounting cylinder 8, thereby improving the stability of the mounting cylinder 8 when moving up and down. The base plate 20 is connected to the bottom of the vertical part of the bracket 1. The end of the telescopic rod 5 away from the mounting cylinder 8 is fixedly connected to the top of the base plate 20. The base plate 20 has a rectangular cross-sectional shape. Multiple return springs 6 are sleeved on the outer surface of the telescopic rod 5, and the two ends of the return springs 6 are fixedly connected to the bottom of the mounting cylinder 8 and the top of the base plate 20, respectively. The support base 7 is fixedly connected to the top of the base plate 20. The support base 7 is located below the mounting cylinder 8. The cross-sectional shape of the support base 7 is circular. The top surface of the support base 7 is directly aligned with the center of the bottom plate of the mounting cylinder 8. It is used to provide vertical limiting support for the mounting cylinder 8 and work together with the downward pressing action of the grinding body 3 to complete the impact grinding operation of art pigments.

[0021] The specific usage method and working principle are as follows: When in use, the staff starts the drive motor 2, the drive motor 2 drives the rotating plate 11 to rotate, the rotating plate 11 drives the two reciprocating screws 12 to revolve in the gear ring 9, the meshing between the transmission gear 10 and the gear ring 9 causes the transmission gear 10 to rotate on its own, the transmission gear 10, together with the reciprocating screws 12, can drive the grinding body 3 to synchronously complete the rotation and high-frequency up and down reciprocating lifting. When the grinding body 3 moves downward and rotates, it drives the matching grinding cylinder 15 to move downward synchronously. During this process, the grinding body 3 rotates and grinds the art pigments inside the grinding cylinder 15. When the grinding cylinder 15 moves the mounting cylinder 8 and contacts the support base 7, the downward movement of the grinding body 3 will perform a pressing and grinding operation on the art pigments inside the grinding cylinder 15. Afterward, the grinding body 3 moves upward to reset under the drive of the reciprocating screw 12. The telescopic rod 5, in conjunction with the reset spring 6, drives the mounting cylinder 8 to move upward. At this time, the grinding cylinder 15 is still in close contact with the grinding body 3, ensuring the rotational grinding between the two. In other words, the reciprocating screw 12, the grinding body 3, the grinding cylinder 15, and the reset spring 6 work together to improve the continuity of grinding. The grinding body 3 continuously performs a composite grinding process of rotational shearing and reciprocating impact extrusion on the art pigments inside the grinding cylinder 15. In conjunction with the extension and retraction linkage of the return spring 6, continuous pressure-stabilized grinding is achieved, which makes the grinding of art pigments uniform and without grinding blind spots, thus improving the fineness of the grinding of art pigments.

[0022] Please see Figure 6 It also includes: Limiting plate 4, which is detachably installed on one side of mounting cylinder 8, and the limiting plate 4 and mounting cylinder 8 together form a limiting structure for grinding cylinder 15; Two locking blocks 18 are connected to both sides of the limiting plate 4. Two locking slots 19 are provided on the mounting cylinder 8. The locking blocks 18 and the locking slots 19 are inserted and assembled. The cross-sectional shape of the locking blocks 18 and the locking slots 19 is T-shaped. The two cooperate to realize the detachable installation of the limiting plate 4. A limiting block 16 is connected to the outer periphery of the grinding cylinder 15. A limiting groove 17 is provided on one side of the inner wall of the mounting cylinder 8. The limiting block 16 and the limiting groove 17 are inserted and assembled. The limiting block 16 and the limiting groove 17 are both rectangular in cross-sectional shape and are used to limit the circumferential rotation of the grinding cylinder 15.

[0023] The specific usage method and working principle are as follows: When installing the grinding cylinder 15, first align the rectangular limiting block 16 on the outside of the grinding cylinder 15 with the rectangular limiting groove 17 on the inner wall of the mounting cylinder 8, and push it in smoothly in the vertical direction to complete the circumferential positioning of the grinding cylinder 15 and prevent the grinding cylinder 15 from rotating and shifting; then align the T-shaped locking blocks 18 on both sides of the limiting plate 4 with the T-shaped locking groove 19 of the mounting cylinder 8, insert and lock them, so that the limiting plate 4 seals the side opening of the mounting cylinder 8 to lock the horizontal position of the grinding cylinder 15 and complete the overall assembly and fixation; When it is necessary to change materials, clean or disassemble the grinding cylinder 15, simply pull the limiting plate 4 upwards to disengage the T-shaped locking block 18 from the slot 19, release the lateral limit, and then directly pull out the grinding cylinder 15. The operation is simple and quick, and the disassembly and assembly are efficient, which is convenient for daily maintenance and art paint replacement.

[0024] Please see Figure 4 The grinding body 3 has a cavity inside, and the fixed motor 13 is installed in the cavity. A mounting plate is fixedly installed in the cavity, and the fixed motor 13 is fixedly installed on the top of the mounting plate. The deflection block 14 is fixedly connected to the bottom of the output shaft of the fixed motor 13, and the rotating shaft is rotatably connected to the bottom wall of the cavity. The deflection block 14 has a rectangular cross-sectional shape.

[0025] The specific usage method and working principle are as follows: During the grinding of art pigments, the fixed motor 13 inside the cavity is started. The output shaft of the fixed motor 13 drives the deflection block 14 to rotate continuously through the rotating shaft. The deflection block 14 drives the grinding body 3 to deflect and vibrate, thereby disturbing and stirring the art pigments in the grinding cylinder 15. During the process of the grinding body 3 rising, falling and rotating, the deflection block 14 always keeps running. The deflection vibration generated can continuously turn over the art pigments, thereby breaking up the accumulated art pigments, avoiding the problems of compaction and accumulation of art pigments and the separation of coarse and fine particles, and improving the overall grinding uniformity and fineness of the art pigments.

[0026] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A fine grinding device for art pigments, comprising a support (1), said support (1) being composed of a vertical part and a horizontal part, characterized in that, Also includes: The grinding body (3) is located at the bottom of the horizontal part of the support (1). The grinding body (3) can move up and down in the vertical direction and can rotate around its own axis. Grinding cylinder (15) is adapted to be located below grinding body (3). Grinding cylinder (15) can move vertically up and down synchronously with grinding body (3).

2. The fine grinding device for art pigments according to claim 1, characterized in that, Also includes: Rotating plate (11) is rotatably mounted at the bottom of the horizontal part of bracket (1); Two reciprocating lead screws (12) are symmetrically arranged on both sides of the bottom of the rotating plate (11). The reciprocating lead screws (12) are rotatably connected to the rotating plate (11), and the grinding body (3) is drivenly connected to the reciprocating lead screws (12).

3. The fine grinding device for art pigments according to claim 2, characterized in that, Also includes: Two transmission gears (10) are fixedly connected to the end of the reciprocating screw (12) away from the grinding body (3); The gear ring (9) is fixedly connected to the bottom of the horizontal part of the bracket (1), and the transmission gear (10) meshes with the gear ring (9).

4. The fine grinding device for art pigments according to claim 2, characterized in that, Also includes: The drive motor (2) is fixedly installed on the top of the horizontal part of the bracket (1), and one end of the output shaft of the drive motor (2) is fixedly connected to the top of the rotating plate (11).

5. The fine grinding device for art pigments according to claim 1, characterized in that, Also includes: Mounting cylinder (8), the grinding cylinder (15) is horizontally inserted inside the mounting cylinder (8); Multiple telescopic rods (5) are arranged in a circular array at the bottom of the mounting cylinder (8), and the top of the telescopic rods (5) is fixedly connected to the bottom of the mounting cylinder (8); The base plate (20) is connected to the bottom of the vertical part of the bracket (1), and the end of the telescopic rod (5) away from the mounting cylinder (8) is fixedly connected to the top of the base plate (20); Multiple return springs (6) are sleeved on the outer surface of the telescopic rod (5), and the two ends of the return springs (6) are fixedly connected to the bottom of the mounting cylinder (8) and the top of the base plate (20) respectively.

6. The fine grinding device for art pigments according to claim 5, characterized in that, Also includes: Limiting plate (4), the limiting plate (4) is detachably installed on one side of the mounting cylinder (8), the limiting plate (4) and the mounting cylinder (8) together form a limiting structure for the grinding cylinder (15); Two locking blocks (18) are connected to both sides of the limiting plate (4). Two slots (19) are opened on the mounting cylinder (8). The locking blocks (18) are inserted into the slots (19) for assembly.

7. The fine grinding device for art pigments according to claim 5, characterized in that, Also includes: A limiting block (16) is connected to the outer periphery of the grinding cylinder (15). A limiting groove (17) is opened on one side of the inner wall of the mounting cylinder (8). The limiting block (16) and the limiting groove (17) are inserted and assembled. The support base (7) is fixedly connected to the top of the base plate (20), and the support base (7) is located below the mounting cylinder (8).

8. The fine grinding device for art pigments according to claim 1, characterized in that, Also includes: A fixed motor (13) is provided, and a cavity is provided inside the grinding body (3), and the fixed motor (13) is installed in the cavity; The deflection block (14) is connected to the bottom of the output shaft of the fixed motor (13) with a rotating shaft. The rotating shaft is rotatably connected to the bottom wall of the cavity. The deflection block (14) is fixedly connected to the rotating shaft.

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