Grinding equipment for coating production

Abstract

The invention relates to the technical field of coating grinding, in particular to grinding equipment for coating production. Comprising a lifting frame, a lifting part of the lifting frame is fixedly connected with a connecting frame, the connecting frame is fixedly connected with a motor, an output shaft of the motor is fixedly connected with a rotating shaft, the connecting frame is fixedly connected with a grinding shell, grinding beads are arranged in the grinding shell, the rotating shaft is fixedly connected with a pump wheel and a dispersing wheel, and a screening disc is slidably connected in the grinding shell. The screening disc is fixedly connected with a lifting shell, a wave groove is formed in the lifting shell, the dispersing wheel is fixedly connected with a limiting sleeve, and the limiting sleeve is slidably connected with a limiting rod. In the preliminary feeding process, the limiting rods slide along the wave grooves, the screening disc is promoted to drive grinding beads on the screening disc to vibrate, the grinding beads vibrate up and down, the mixing speed of the grinding beads and viscous paint is increased, the probability of high-speed collision between the grinding beads on the lower portion is reduced, abrasion of the grinding beads is reduced, and the service life of the device is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of paint grinding, and particularly relates to a grinding device for paint production. Background Art

[0002] The types of paints can be divided into various types such as architectural paints, industrial paints, and general paints, and are widely used in various scenarios in life. Among them, when producing paints with a high fineness, wet grinding is usually adopted. During the wet grinding process, some paints are produced by a basket mill. When the existing basket mill grinds the paint, the paint is sucked into the grinding basket by a suction pump, and then the stirring rod is driven to rotate and quickly strike the grinding beads, so that the grinding beads move at a high speed and collide with each other to grind the paint. However, when grinding viscous paint, due to the high viscosity of the paint and the small gaps between the grinding beads, it is difficult for the paint to quickly pass through the gaps between the grinding beads and is likely to accumulate above the grinding beads. When the device is started, the grinding beads located at the lower part cannot contact the paint, resulting in a lack of paint buffer when the grinding beads collide, and the grinding beads will directly collide and rub against each other, thereby aggravating the wear of the grinding beads, reducing the service life of the device, and affecting the normal production of the paint. Summary of the Invention

[0003] The present invention provides a grinding device for paint production, in order to overcome the defect that when the existing grinding device is started, some grinding beads do not contact the paint, resulting in direct friction between some grinding beads.

[0004] The technical solution of the present invention is: a grinding device for paint production, including a lifting frame, the lifting part of the lifting frame is fixedly connected with a connecting frame, the connecting frame is fixedly connected with a motor, the output shaft of the motor is fixedly connected with a rotating shaft rotatably connected with the connecting frame, the connecting frame is fixedly connected with a grinding shell, grinding beads are arranged in the grinding shell, the rotating shaft is fixedly connected with a pump wheel and a dispersing wheel, a screening plate is slidably connected in the grinding shell, the screening plate is slidably connected with the rotating shaft, the screening plate is fixedly connected with a lifting shell, a wave groove is arranged in the lifting shell, the dispersing wheel is fixedly connected with a limiting sleeve slidably connected with the lifting shell, a limiting rod slidably connected in the wave groove is arranged in the limiting sleeve, the limiting rod drives the lifting shell to reciprocate through the wave groove, a tension spring is fixedly connected between the limiting rod and the limiting sleeve, and a transmission assembly for pushing the grinding beads to move, dispersing the grinding beads and mixing them with the paint is arranged on the screening plate.

[0005] In addition, it is particularly preferred that the transmission assembly includes a first spring disposed between the lifting housing and the limiting sleeve. The screening plate is rotatably connected to a cleaning frame, the cleaning frame is rotatably connected to the rotating shaft, the cleaning frame is fixedly connected with a transmission block, the rotating shaft is fixedly connected with a transmission ring, the transmission ring is slidably and rotatably connected to the cleaning frame, and the transmission ring is used to drive the transmission block to rotate. A plurality of pairs of spherical shells vertically distributed are fixedly connected to the cleaning frame, and adjacent pairs of spherical shells are arranged in a staggered manner. A sliding tube is hinged in the spherical shell of the cleaning frame. A material pushing assembly is arranged on the screening plate, and the material pushing assembly is used to drive the sliding tube to swing up and down during the rotation of the cleaning frame, so that the sliding tube adjusts the distribution of the grinding beads.

[0006] In addition, it is particularly preferred that an annular groove is provided in the transmission ring, and the annular groove of the transmission ring is provided with a stepped surface and an inclined surface. The stepped surface is used to limit the transmission block, and the inclined surface in the transmission ring is used to guide the movement of the transmission block.

[0007] In addition, it is particularly preferred that a material pushing frame is fixedly connected to the sliding tube, an arc-shaped plate is arranged on the side of the material pushing frame away from the cleaning frame, and the bending directions of the arc-shaped plates of two adjacent material pushing frames at different heights are opposite.

[0008] In addition, it is particularly preferred that the lifting housing is provided with a limiting groove for limiting the limiting rod, and the limiting groove is located above the wave groove.

[0009] In addition, it is particularly preferred that the material pushing assembly includes a wave ring fixedly connected to the screening plate. A transmission frame is slidably connected to the cleaning frame, and the transmission frame is used to squeeze the sliding tube. The transmission frame is fixedly connected with a plurality of convex rods, and the convex rods drive the transmission frame to move through the wave ring. A second spring is fixedly connected between the transmission frame and the cleaning frame.

[0010] In addition, it is particularly preferred that the transmission frame is composed of a plurality of circular rings and vertical rods, and the distance between the circular rings on the transmission frame and the adjacent sliding tube in the vertical direction increases as the distance between it and the screening plate increases.

[0011] In addition, it is particularly preferred that an L-shaped frame circumferentially distributed is fixedly connected to the transmission frame, the L-shaped frame contacts the screening plate, and the L-shaped frame is used to push the grinding beads at the bottom to move.

[0012] In addition, it is particularly preferred that the width of the L-shaped frame increases as the distance between it and the rotating shaft increases.

[0013] In addition, it is particularly preferred that an adjusting component is further included. The adjusting component is arranged on the cleaning rack. The adjusting component is used to adjust the space for the movement of the grinding beads. The adjusting component includes a first partition rack. The first partition rack is slidably and rotatably connected to the cleaning rack. The first partition rack contacts the grinding shell. A damping is provided between the first partition rack and the grinding shell. The transmission rack is fixedly connected with a second partition rack. The first partition rack is rotatably connected to the second partition rack. The first partition rack and the second partition rack are both provided with filters distributed circumferentially, and there is a gap between adjacent filters. The second partition rack is slidably connected to the cleaning rack. A pull rope is fixedly connected between the second partition rack and the first partition rack.

[0014] Advantages of the present invention: 1. During the initial feeding process of the present invention, the limiting rod slides along the wave groove, prompting the screening plate to drive the grinding beads on it to vibrate, causing the grinding beads to vibrate up and down and accelerating the mixing speed with the viscous coating, reducing the probability of high-speed collision between the lower grinding beads, reducing the wear of the grinding beads, and ensuring the service life of the device.

[0015] 2. During the stirring process of the coating and the grinding beads in the present invention, the transmission rack drives the pushing rack to swing upward, enabling the pushing rack to push the grinding beads to move, thereby increasing the uniformity of the distribution of the grinding beads in the grinding shell, and thus ensuring the improvement of the grinding efficiency.

[0016] 3. During the process of driving the grinding beads to grind the coating in the present invention, the pushing rack drives the L-shaped rack to move, driving the grinding beads deposited at the lower part to move upward, improving the uniformity of the distribution of the grinding beads in the grinding shell, and thus ensuring the efficiency of coating grinding.

[0017] 4. During the grinding process of the present invention, by driving the first partition rack and the second partition rack to move up and down reciprocally, continuously adjusting the movement space of the grinding beads, the movement trajectory of the grinding beads in the grinding shell becomes more chaotic, increasing the probability of contact between the grinding beads and the coating, and thus improving the grinding efficiency of the device for the coating. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a three-dimensional structure diagram of the present invention; Figure 2 is a three-dimensional structure diagram of the motor, rotating shaft and grinding shell of the present invention; Figure 3 is a three-dimensional structure diagram of the dispersing wheel, sliding tube and pushing rack of the present invention; Figure 4 is a three-dimensional structure diagram of the screening plate, lifting shell and limiting sleeve of the present invention; Figure 5 is a three-dimensional structure diagram of the tension spring, transmission block and transmission ring of the present invention; Figure 6 Schematic three-dimensional structure diagram of the lifting shell, wave groove and limiting groove of the present invention; Figure 7 Schematic three-dimensional structure diagram of the convex rod, second spring and L-shaped frame of the present invention; Figure 8 Schematic three-dimensional structure diagram of the cleaning frame, transmission ring and transmission frame of the present invention; Figure 9 Schematic three-dimensional structure diagram of the cleaning frame, sliding tube and material pushing frame of the present invention; Figure 10 Schematic three-dimensional structure diagram of the second partition frame and the pull rope of the present invention; Figure 11 Exploded three-dimensional structure diagram of the first partition frame, second partition frame and pull rope of the present invention.

[0019] Names of the reference numerals in the figure: 1 - lifting frame, 2 - connecting frame, 3 - motor, 4 - rotating shaft, 5 - grinding shell, 6 - pump wheel, 7 - dispersing wheel, 8 - screening plate, 9 - lifting shell, 901 - wave groove, 902 - limiting groove, 10 - limiting sleeve, 11 - limiting rod, 12 - tension spring, 13 - first spring, 14 - cleaning frame, 15 - transmission block, 16 - transmission ring, 17 - sliding tube, 18 - material pushing frame, 19 - wave ring, 20 - transmission frame, 201 - convex rod, 21 - second spring, 22 - L-shaped frame, 25 - first partition frame, 26 - second partition frame, 27 - pull rope. Detailed implementation manners

[0020] To make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below in conjunction with the specific implementation manners and with reference to the accompanying drawings. It should be understood that these descriptions are exemplary and are not intended to limit the scope of the present invention. In addition, in the following description, the descriptions of well-known structures and technologies are omitted to avoid unnecessarily confusing the concepts of the present invention.

[0021] A grinding device for paint production, such as Figures 1-6As shown in the figure, it includes a lifting frame 1. A connecting frame 2 is fixedly connected to the lifting part of the lifting frame 1. A motor 3 is fixedly connected to the connecting frame 2. A rotating shaft 4 that is rotatably connected to the connecting frame 2 is fixedly connected to the output shaft of the motor 3. A grinding shell 5 is fixedly connected to the connecting frame 2. Grinding beads are arranged inside the grinding shell 5. A pump wheel 6 and a dispersing wheel 7 are fixedly connected to the rotating shaft 4. A screening plate 8 is slidably connected inside the grinding shell 5. The screening plate 8 is slidably connected to the rotating shaft 4. A lifting shell 9 is fixedly connected to the screening plate 8. A wave groove 901 is arranged inside the lifting shell 9. A limiting sleeve 10 that is slidably connected to the lifting shell 9 is fixedly connected to the dispersing wheel 7. A limiting rod 11 that slides inside the wave groove 901 is slidably connected to the limiting sleeve 10. The limiting rod 11 drives the lifting shell 9 to reciprocate through the wave groove 901. A tension spring 12 is fixedly connected between the limiting rod 11 and the limiting sleeve 10. A transmission assembly is arranged on the screening plate 8 for pushing the grinding beads to move, dispersing the grinding beads and mixing them with the coating material.

[0022] The above solution aims to solve the problem that when grinding viscous coating materials, some of the grinding beads do not come into contact with the coating material, resulting in no coating material for buffering when some of the grinding beads collide at high speed, causing increased wear of the grinding beads. The lifting frame 1 is an existing device, and its internal specific structure will not be elaborated too much. The lifting frame 1 is used to drive the connecting frame 2 to move up and down. Initially, the lifting frame 1 is in the extended state. A storage shell is arranged on the lifting frame 1 for storing the coating material to be ground. A sealing cover that cooperates with the storage shell is arranged on the connecting frame 2. The sealing cover is used to prevent the coating material from splashing out of the storage shell during the grinding process. The rotating shaft 4 penetrates through the lifting shell 9 and the limiting sleeve 10. The grinding shell 5 is an existing shell, and a feed hole is arranged at its upper part for allowing the coating material to enter the grinding shell 5 during the grinding process. The material of the grinding beads inside the grinding shell 5 is zirconia beads. Both the pump wheel 6 and the dispersing wheel 7 are existing devices, and their specific structures will not be elaborated too much. When the pump wheel 6 rotates, it extracts the coating material from the storage shell on the lifting frame 1, enabling the unground coating material to enter the grinding shell 5. The dispersing wheel 7 is used to disperse the coating material passing through the screening plate 8 around. The screening plate 8 is provided with uniformly distributed through holes. The diameter of the through holes on the screening plate 8 is smaller than the diameter of the grinding beads inside the grinding shell 5, which is used to prevent the leakage of the grinding beads. The wave groove 901 is located at the lower part inside the lifting shell 9. The limiting sleeve 10 is composed of a circular ring and a cylinder. Initially, the lower side surface of the circular ring on the limiting sleeve 10 contacts the lifting shell 9, and the limiting rod 11 is located at the trough position of the wave groove 901. When the dispersing wheel 7 rotates, the limiting sleeve 10 drives the limiting rod 11 to rotate, causing the limiting rod 11 to drive the lifting shell 9 to move up and down by squeezing the wave groove 901. The tension spring 12 is used to drive the limiting rod 11 to reset.

[0023] Further, as Figures 3-8As shown, the transmission assembly includes a first spring 13. The first spring 13 is arranged between the lifting housing 9 and the limit sleeve 10. The screening plate 8 is rotatably connected with a cleaning frame 14. The cleaning frame 14 is rotatably connected with the rotating shaft 4. The cleaning frame 14 is fixedly connected with a transmission block 15. The rotating shaft 4 is fixedly connected with a transmission ring 16. The transmission ring 16 is slidably and rotatably connected with the cleaning frame 14, and the transmission ring 16 is used to drive the transmission block 15 to rotate. A plurality of pairs of spherical shells distributed vertically are fixedly connected to the cleaning frame 14. Adjacent pairs of spherical shells are arranged in a staggered manner. A sliding tube 17 is hinged in the spherical shell of the cleaning frame 14. A material pushing assembly is arranged on the screening plate 8. The material pushing assembly is used to drive the sliding tube 17 to swing up and down during the rotation of the cleaning frame 14, so that the sliding tube 17 adjusts the distribution of the grinding beads.

[0024] Further, as Figure 6 and Figure 8 shown, an annular groove is arranged in the transmission ring 16. The annular groove of the transmission ring 16 is provided with a stepped surface and an inclined surface. The stepped surface is used to limit the transmission block 15, and the inclined surface in the transmission ring 16 is used to guide the movement of the transmission block 15.

[0025] Further, as Figures 3-5 and Figures 7-9 shown, a material pushing frame 18 is fixedly connected to the sliding tube 17. An arc-shaped plate is arranged on the side of the material pushing frame 18 away from the cleaning frame 14, and the bending directions of the arc-shaped plates of two adjacent material pushing frames 18 at different heights are opposite.

[0026] Further, as Figure 6 and Figure 11 shown, the lifting housing 9 is provided with a limit groove 902. The limit groove 902 is used to limit the limit rod 11, and the limit groove 902 is located above the wave groove 901.

[0027] The above solution provides a way to adjust the position of the grinding beads in the grinding shell 5 and improve the uniformity of the distribution of the grinding beads in the grinding shell 5; the first spring 13 is used to push the lifting shell 9 to reset. After the space between the upper side of the screening plate 8 and the grinding shell 5 is filled with the coating material, the coating material continues to enter the space between the upper side of the screening plate 8 and the grinding shell 5, causing the screening plate 8 to move downward under the extrusion of the coating material. In this embodiment, three pairs of spherical shells are provided on the cleaning frame 14, and adjacent spherical shells at different heights are misaligned with each other, thereby increasing the degree of chaos of the grinding beads in the grinding shell 5. The bending directions of the arc-shaped plates on the upper and lower pushing frames 18 are opposite to their rotation directions, and are used to apply a force to the coating material and the grinding beads in the direction away from the axis of the cleaning frame 14, so that the coating material and the grinding beads have a tendency to move outward. The bending direction of the arc-shaped plate on the middle pushing frame 18 is the same as its rotation direction, and is used to apply a force to the coating material and the grinding beads in the direction close to the axis of the cleaning frame 14, so that the coating material and the grinding beads have a tendency to move inward, thereby improving the uniformity of the dispersion of the grinding beads and enabling the grinding beads to be evenly worn. After the limiting rod 11 enters the limiting groove 902, the screening plate 8 is limited by the limiting rod 11, reducing the change in the position fluctuation of the screening plate 8 during this process. The arc-shaped plate on the pushing frame 18 is in a skewed state in the vertical direction and is used to drive the grinding beads to move upward when it swings upward.

[0028] Further, as Figure 4 , Figure 5 and Figures 7-9 shown, the pushing component includes a wave ring 19. The wave ring 19 is fixedly connected to the screening plate 8. The cleaning frame 14 is slidably connected with a transmission frame 20. The transmission frame 20 is used to extrude the sliding tube 17. The transmission frame 20 is fixedly connected with a plurality of convex rods 201. The convex rods 201 drive the transmission frame 20 to move through the wave ring 19. A second spring 21 is fixedly connected between the transmission frame 20 and the cleaning frame 14.

[0029] Further, as Figure 9 shown, the transmission frame 20 is composed of a plurality of circular rings and vertical rods. The distance between the circular rings on the transmission frame 20 and the adjacent sliding tubes 17 in the vertical direction increases as the distance between the transmission frame 20 and the screening plate 8 increases.

[0030] The above solution provides a way to drive the abrasive beads to move irregularly, making the movement path of the abrasive beads more chaotic; the wave ring 19 is located above the screening plate 8. When the cleaning frame 14 drives the transmission frame 20 to rotate, the convex rod 201 drives the transmission frame 20 to move up and down reciprocally under the action of the wave ring 19. In this embodiment, the transmission frame 20 is composed of four circular rings and straight rods. The axes of the four circular rings are coaxial. The circular rings on the transmission frame 20 and the sliding tubes 17 are arranged alternately. When the transmission frame 20 moves upward, the transmission frame 20 pushes the sliding tube 17 through the circular rings on it, causing the sliding tube 17 to swing upward; the second spring 21 is used to push the transmission frame 20 to reset. The distance between the circular ring on the transmission frame 20 and the adjacent sliding tube 17 gradually increases in the vertical direction to cause the sliding tubes 17 at different heights to swing upward in sequence from the lower side, thereby gradually pushing the abrasive beads on the upper side of the screening plate 8 to move upward.

[0031] Further, as Figures 3-5 and Figure 9 shown, the transmission frame 20 is fixedly connected with circumferentially distributed L-shaped frames 22. The L-shaped frames 22 are in contact with the screening plate 8 and are used to push the abrasive beads at the bottom to move.

[0032] Further, as Figures 3-5 and Figure 9 shown, the width of the L-shaped frame 22 increases as the distance between it and the rotating shaft 4 increases.

[0033] The above solution provides a way to drive the abrasive beads at the bottom to move upward and increase the number of abrasive beads driven upward by the pushing frame 18; initially, the lower side of the L-shaped frame 22 is in contact with the upper side of the screening plate 8, so that the L-shaped frame 22 pushes the abrasive beads on the upper side of the screening plate 8 to move upward during rotation.

[0034] Working process: When using this device to grind the paint, the staff adds the paint to be ground into the storage shell. When the height of the paint reaches three-quarters of the internal height of the storage shell, the feeding stops. After that, the staff moves the storage shell under the grinding shell 5, and then the staff starts the lifting frame 1. The lifting frame 1 drives the motor 3, the rotating shaft 4 and the grinding shell 5 to move downward through the connecting frame 2. The grinding shell 5 drives the parts on it to move downward, so that the grinding shell 5 gradually enters the storage shell. When the dispersing wheel 7 contacts the paint, the paint gradually buries the dispersing wheel 7 and the grinding shell 5 until the grinding shell 5 is completely immersed in the paint. Then the paint gradually enters the grinding shell 5 from the feeding port of the grinding shell 5 until the connecting frame 2 contacts the upper part of the storage shell. The sealing cover on the connecting frame 2 completes the sealing of the storage shell, and the lifting frame 1 stops driving the connecting frame 2 to move downward, and the grinding shell 5 stops moving downward (during this process, because the paint is relatively viscous and the gaps between the abrasive beads are small, the paint cannot quickly pass through the gaps between the abrasive beads, and part of the paint accumulates above the abrasive beads in the storage shell, and part of the paint seeps into the bottom of the abrasive beads through the through holes of the screening plate 8).

[0035] After the above-mentioned connecting frame 2 stops moving downward, the staff starts the motor 3, and the output shaft of the motor 3 drives the rotating shaft 4 to rotate counterclockwise ( Figure 1 , viewed from top to bottom), the rotating shaft 4 drives the pump wheel 6, the dispersing wheel 7 and the transmission ring 16 to rotate synchronously. The rotation of the dispersing wheel 7 generates a negative pressure below the screening plate 8, promoting the pushing of materials through the grinding beads. The rotation of the pump wheel 6 pumps the coating material from the storage shell into the grinding shell 5. The dispersing wheel 7 drives the limiting sleeve 10 to rotate synchronously, the limiting sleeve 10 drives the limiting rod 11 to rotate synchronously, and the limiting rod 11 drives the lifting shell 9 to move downward by squeezing the wave groove 901, so that the lifting shell 9 drives the screening plate 8 to move downward. The screening plate 8 drives the cleaning frame 14 and the parts thereon to move downward until the limiting rod 11 moves to the peak position of the wave groove 901, and then the limiting rod 11 drives the lifting shell 9 to move upward through the wave groove 901 (that is, the lifting shell 9 continuously drives the screening plate 8 to move up and down during this process), so that the screening plate 8 drives the grinding beads thereon to vibrate continuously and mix with the coating material, thereby accelerating the speed of the coating material passing through the grinding beads, enabling the coating material to gradually fill the gaps between the grinding beads, accelerating the mixing speed of the grinding beads and the coating material, and thus reducing the collision friction when the grinding beads rotate.

[0036] As the grinding beads are gradually mixed with the coating material, when the coating material contacts the screening plate 8, the coating material and the grinding beads are completely mixed. At this time, the pump wheel 6 continues to transport the coating material into the grinding shell 5, so that the coating material pushes the screening plate 8 downward. The screening plate 8 drives the lifting shell 9 and the cleaning frame 14 to move downward and compress the first spring 13. The cleaning frame 14 drives the transmission block 15 and the parts thereon to move downward. The lifting shell 9 squeezes the limiting rod 11 through the wave groove 901 thereon, so that the limiting rod 11 gradually separates from the wave groove 901. The limiting rod 11 enters the limiting sleeve 10 and compresses the adjacent tension spring 12. Until the wave groove 901 separates from the limiting rod 11, the limiting rod 11 stops moving. The screening plate 8 drives the parts thereon to continue moving downward until the limiting rod 11 is flush with the limiting groove 902 on the lifting shell 9, and then the screening plate 8 stops moving. The limiting rod 11 enters the limiting groove 902 under the action of the adjacent tension spring 12 to complete the limiting of the lifting shell 9. At this time, the transmission block 15 extends into the stepped surfaces of the transmission ring 16. When the transmission block 15 contacts the inclined surface of the transmission ring 16, the transmission block 15 moves downward along the inclined surface of the transmission ring 16 until the side surface of the transmission block 15 contacts the stepped surface of the transmission ring 16, and then the transmission block 15 stops moving downward. The transmission ring 16 squeezes the transmission block 15, so that the transmission block 15 drives the cleaning frame 14 to rotate.

[0037] After the above-mentioned transmission block 15 drives the cleaning frame 14 to rotate, the cleaning frame 14 drives the sliding tube 17 and the transmission frame 20 to rotate. The sliding tube 17 drives the pusher frame 18 to rotate. The pusher frames 18 at different positions cooperate with each other to drive the grinding beads to move, improving the degree of chaos of the grinding beads in the grinding shell 5, thereby increasing the grinding efficiency.

[0038] During the process of the sliding tube 17 driving the pusher frame 18 to rotate, the transmission frame 20 drives the convex rod 201 to rotate synchronously. The convex rod 201 moves upward under the action of the upper side of the wave ring 19, causing the transmission frame 20 to drive the L-shaped frame 22 to move synchronously and compress the second spring 21. The L-shaped frame 22 drives the grinding beads at the bottom to move upward, so that the grinding beads at the bottom are mixed with the grinding beads in the middle, further increasing the uniformity of the distribution of the grinding beads in the grinding shell 5. Until after the transmission frame 20 contacts the sliding tube 17, the transmission frame 20 pushes the sliding tube 17 to swing upward, causing the sliding tube 17 to drive the pusher frame 18 to push the grinding beads to move, increasing the uniformity of the distribution of the grinding beads in the grinding shell 5. Until after the convex rod 201 moves to the crest position of the wave ring 19, the transmission frame 20 stops moving upward. After that, the transmission frame 20 moves reversely and resets under the action of the second spring 21. The pusher frame 18 drives the sliding tube 17 to move reversely and reset under the combined action of the centrifugal force and the downward thrust when the paint flows. After that, the transmission frame 20 repeats the above process to drive the sliding tube 17 to swing, so that the moving track of the grinding beads is chaotic.

[0039] After the grinding is completed, the staff turns off the motor 3. The pump wheel 6 no longer conveys the paint into the grinding shell 5. The pressure on the screening disc 8 decreases. The first spring 13 drives the screening disc 8 to move upward through the lifting shell 9. The limiting rod 11 is retracted into the limiting sleeve 10 again under the extrusion of the limiting groove 902. The screening disc 8 drives the cleaning frame 14 and the parts thereon to move upward and reset. The cleaning frame 14 drives the transmission block 15 to move, so that the transmission block 15 is separated from the transmission ring 16. Until after the lifting shell 9 contacts the lower side of the circular ring on the limiting sleeve 10, the screening disc 8 and the parts thereon all stop moving. The limiting rod 11 enters the wave groove 901 again to complete the reset. After that, the lifting frame 1 is started. The lifting frame 1 drives the grinding shell 5 and the parts thereon to move upward and reset through the connecting frame 2, so that the grinding shell 5 is separated from the paint. After that, the staff collects the ground paint and repeats the above process to continue grinding the paint to be ground.

[0040] Further, as Figures 3-5 、 Figure 10 and Figure 11 shown, it further includes an adjusting component. The adjusting component is arranged on the cleaning frame 14. The adjusting component is used to adjust the space for the grinding beads to move. The adjusting component includes a first partition frame 25. The first partition frame 25 is slidably and rotatably connected to the cleaning frame 14. The first partition frame 25 contacts the grinding shell 5. There is a damping between the first partition frame 25 and the grinding shell 5. The transmission frame 20 is fixedly connected with a second partition frame 26. The first partition frame 25 is rotatably connected to the second partition frame 26. The first partition frame 25 and the second partition frame 26 are both provided with filters distributed circumferentially, and there are gaps between adjacent filters. The second partition frame 26 is slidably connected to the cleaning frame 14. A pull rope 27 is fixedly connected between the second partition frame 26 and the first partition frame 25.

[0041] The above solution provides a way to continuously change the moving space of the grinding beads, increasing the collision frequency of the grinding beads; there are four filter meshes on both the first partition frame 25 and the second partition frame 26, and the angle of the corresponding central angle of the filter mesh is 60°. Initially, the positions of the filter meshes on the first partition frame 25 coincide with the positions of the adjacent filter meshes on the second partition frame 26. The gaps between the adjacent filter meshes on the first partition frame 25 and the gaps between the adjacent filter meshes on the second partition frame 26 are used for the staff to put the grinding beads into the grinding shell 5. The pull rope 27 is an elastic rope, and the pull rope 27 is used to drive the second partition frame 26 to reset. The damping between the first partition frame 25 and the grinding shell 5 provides resistance to the rotation of the first partition frame 25, causing a dislocation between the first partition frame 25 and the second partition frame 26.

[0042] Workflow: After the above-mentioned mixing of the grinding beads and the material is completed, as the screening plate 8 moves downward, the screening plate 8 drives the lifting shell 9 to move downward, the lifting shell 9 drives the transmission frame 20 to move downward, the transmission frame 20 drives the second partition frame 26 to move downward, and the second partition frame 26 drives the first partition frame 25 and the pull rope 27 to move downward until the screening plate 8 stops moving downward, and then the second partition frame 26 stops moving.

[0043] After the above-mentioned screening plate 8 stops moving downward, at this time, the transmission block 15 extends into the stepped surfaces of the transmission ring 16, causing the transmission block 15 to drive the cleaning frame 14 to rotate. The cleaning frame 14 drives the second partition frame 26 to rotate through the transmission frame 20, and the second partition frame 26 drives the first partition frame 25 to rotate through the pull rope 27. At this time, the first partition frame 25 rotates clockwise relative to the second partition frame 26 under the action of the damping between it and the grinding shell 5. At the same time, the first partition frame 25 stretches the pull rope 27, causing the filter meshes on the first partition frame 25 and the second partition frame 26 to gradually become misaligned until the pull rope 27 cannot be stretched, and then the first partition frame 25 and the second partition frame 26 stop rotating relative to each other. The second partition frame 26 drives the first partition frame 25 to rotate synchronously. At this time, the filter meshes on the first partition frame 25 and the second partition frame 26 complement each other to form a circle, preventing the grinding beads from moving to the upper side of them.

[0044] During the rotation of the cleaning rack 14, the cleaning rack 14 drives the transmission rack 20 to rotate, causing the transmission rack 20 to continuously move up and down under the action of the convex rod 201 and the corrugated ring 19. The transmission rack 20 drives the first partition rack 25 and the second partition rack 26 to move up and down synchronously. When the convex rod 201 moves towards the peak of the corrugated ring 19, the distance between the first partition rack 25 and the second partition rack 26 and the screening disc 8 continuously increases, increasing the movement space of the abrasive beads. When the convex rod 201 moves towards the trough of the corrugated ring 19, the distance between the first partition rack 25 and the second partition rack 26 and the screening disc 8 continuously decreases, and the abrasive beads are squeezed downwards, restoring the movement space of the abrasive beads to the initial state. Thus, the movement space of the abrasive beads is continuously adjusted, the movement law of the abrasive beads is changed, and the degree of disorder of the abrasive beads is increased, accelerating the grinding efficiency of the abrasive beads on the coating.

[0045] The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable those skilled in the art to understand the content of the present invention and implement it accordingly, and should not be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit and essence of the present invention should be covered within the protection scope of the present invention.

Claims

1. A grinding device for coating production, characterized in that: The invention comprises a lifting frame (1), wherein the lifting part of the lifting frame (1) is fixedly connected to a connecting frame (2), the connecting frame (2) is fixedly connected to a motor (3), the output shaft of the motor (3) is fixedly connected to a rotating shaft (4) rotatably connected to the connecting frame (2), the connecting frame (2) is fixedly connected to a grinding shell (5), the grinding shell (5) is provided with grinding beads, the rotating shaft (4) is fixedly connected to a pump wheel (6) and a dispersion wheel (7), the grinding shell (5) is slidably connected to a screening disc (8), the screening disc (8) is slidably connected to the rotating shaft (4), the screening disc (8) is fixedly connected to the lifting shell (9), and the lifting part (9) is fixedly connected to the connecting frame (2). ), a wave groove (901) is arranged in the lifting shell (9), the dispersion wheel (7) is fixedly connected with a limit sleeve (10) which is slidably connected to the lifting shell (9), the limit sleeve (10) is slidably connected with a limit rod (11) which is located and slides in the wave groove (901), the limit rod (11) drives the lifting shell (9) to move back and forth through the wave groove (901), a tension spring (12) is fixedly connected between the limit rod (11) and the limit sleeve (10), and a transmission component for pushing the grinding beads to move so that the grinding beads are dispersed and mixed with the paint is arranged on the screening plate (8).

2. A grinding device for coating production according to claim 1, characterized in that: The transmission assembly comprises a first spring (13), the first spring (13) being arranged between the lifting shell (9) and the limiting sleeve (10), the screening disc (8) being rotatably connected to a cleaning frame (14), the cleaning frame (14) being rotatably connected to the rotating shaft (4), the cleaning frame (14) being fixedly connected to a transmission block (15), the rotating shaft (4) being fixedly connected to a transmission ring (16), the transmission ring (16) being slidably and rotatably connected to the cleaning frame (14), and the The transmission ring (16) is used to drive the transmission block (15) to rotate. The cleaning frame (14) is fixedly connected to a plurality of pairs of spherical shells distributed vertically, and two adjacent pairs of spherical shells are arranged in a staggered manner. A sliding tube (17) is hinged inside the spherical shell of the cleaning frame (14). A pushing assembly is provided on the screening plate (8). The pushing assembly is used to drive the sliding tube (17) to swing up and down during the rotation of the cleaning frame (14), so that the sliding tube (17) adjusts the distribution of the grinding beads.

3. A grinding device for coating production according to claim 2, characterized in that: An annular groove is provided in the transmission ring (16), and the annular groove of the transmission ring (16) is provided with a stepped surface and an inclined surface, the stepped surface is used to limit the transmission block (15), and the inclined surface in the transmission ring (16) is used to guide the movement of the transmission block (15).

4. A grinding device for coating production according to claim 2, characterized in that: A material pusher rack (18) is fixedly connected to the sliding tube (17), and a curved plate is provided on a side of the material pusher rack (18) away from the cleaning rack (14), and the curved plates of two adjacent material pusher racks (18) at different heights have opposite bending directions.

5. A grinding device for coating production according to claim 2, characterized in that: The lifting shell (9) is provided with a limiting groove (902), the limiting groove (902) is used to limit the limiting rod (11), and the limiting groove (902) is located on the upper side of the wave groove (901).

6. A grinding device for coating production according to claim 4, characterized in that: The pusher assembly comprises a wave ring (19), the wave ring (19) being fixedly connected to the screening plate (8), the cleaning frame (14) being slidably connected to a transmission frame (20), the transmission frame (20) being used to extrude the sliding tube (17), the transmission frame (20) being fixedly connected to a plurality of protruding rods (201), the protruding rods (201) driving the transmission frame (20) to move via the wave ring (19), and a second spring (21) being fixedly connected between the transmission frame (20) and the cleaning frame (14).

7. A grinding device for coating production according to claim 6, characterized in that: The transmission frame (20) is composed of a plurality of circular rings and vertical rods, and the distance between the circular rings on the transmission frame (20) and the adjacent sliding tubes (17) in the vertical direction increases as the distance between the circular rings on the transmission frame (20) and the screening disc (8) increases.

8. A grinding device for coating production according to claim 6, characterized in that: The transmission frame (20) is fixedly connected to a circumferentially distributed L-shaped frame (22), the L-shaped frame (22) is in contact with the screening plate (8), and the L-shaped frame (22) is used to push the grinding beads at the bottom to move.

9. A grinding device for coating production according to claim 8, characterized in that: The width of the L-shaped frame (22) increases as the distance between the L-shaped frame (22) and the rotating shaft (4) increases.

10. A grinding device for coating production according to claim 8, characterized in that: The invention also comprises an adjustment component, which is arranged on the cleaning frame (14) and is used to adjust the space for the grinding beads to move. The adjustment component comprises a first partition frame (25), the first partition frame (25) is slidably and rotatably connected to the cleaning frame (14), the first partition frame (25) is in contact with the grinding shell (5), a damping is arranged between the first partition frame (25) and the grinding shell (5), the transmission frame (20) is fixedly connected to a second partition frame (26), the first partition frame (25) and the second partition frame (26) are rotatably connected, the first partition frame (25) and the second partition frame (26) are both provided with circumferentially distributed filter screens, and a gap is arranged between adjacent filter screens, the second partition frame (26) is slidably connected to the cleaning frame (14), and a pull rope (27) is fixedly connected between the second partition frame (26) and the first partition frame (25).

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