Energy-saving coating grinding equipment and grinding method
By integrating grinding and mixing components into energy-saving coating grinding equipment, and using a power motor to drive the vertical rotation of the grinding shaft and mixing tank, the problem of integrating grinding and mixing in existing technologies is solved, thereby improving production efficiency and equipment reliability.
Patent Information
- Application Number
- CN202511708858.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-20
- Publication Date
- 2026-02-13
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
Existing energy-saving coating grinding equipment is difficult to integrate grinding and mixing, resulting in complex production processes, high energy consumption, and waste and pollution during material transfer.
The grinding and mixing components are integrated on the same housing. The ground powder is directly conveyed to the mixing tank through the discharge bend. The grinding shaft and the mixing tank are driven by a power motor to rotate in mutually perpendicular directions. They move independently to maintain stability, and power transmission is achieved through a multi-stage reduction assembly.
It significantly reduces material transfer time and energy consumption, improves the compactness of the production line layout, reduces factory space utilization costs, and ensures the stability of the grinding and mixing process and the reliability of equipment operation.
Smart Images
Figure CN121513701A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of coating grinding technology, and in particular to an energy-saving coating grinding equipment and grinding method. Background Technology
[0002] Energy-saving coatings possess properties such as reflective heat insulation, thermal insulation and energy saving, weather resistance and corrosion resistance, and environmental friendliness with low volatility. In the construction industry, energy-saving coatings can be used on walls, roofs, and external insulation systems to reduce indoor temperature by increasing solar reflectivity and thermal radiation. In the industrial sector, they can be applied to the surfaces of equipment such as storage tanks, pipelines, and boilers to reduce heat loss and improve energy efficiency. Grinding and mixing are two essential key steps in the production of energy-saving coatings.
[0003] In existing technologies, the preparation process of energy-saving coatings typically requires first refining solid powders using grinding equipment to achieve a predetermined particle size distribution. The ground material is then transferred to a mixing device for uniform mixing with film-forming substances, additives, and solvents. However, due to the structural limitations of traditional grinding equipment, it is difficult to integrate the mixing function. During production, manual or mechanical methods are required to transfer materials between different devices, which not only increases energy consumption and labor costs but also leads to complex production processes, large footprints, and potential waste and pollution during material transfer.
[0004] Therefore, existing energy-saving coating grinding equipment suffers from the problem of difficulty in achieving integrated design of grinding and mixing. Summary of the Invention
[0005] The purpose of this invention is to provide an energy-saving coating grinding equipment and grinding method, which solves the problem that existing energy-saving coating grinding equipment is difficult to integrate grinding and stirring.
[0006] To achieve this objective, the present invention adopts the following technical solution: According to a first aspect, the present invention provides an energy-saving coating grinding device, including a device housing, on which a power motor, a grinding component and a stirring component are mounted; The grinding assembly includes a grinding cylinder arranged along a first direction and a grinding shaft located inside the grinding cylinder. A discharge bend is connected to one end of the grinding cylinder near the stirring assembly. The power motor is used to drive the grinding shaft to rotate around the first direction so that the grinding shaft and the grinding cylinder together grind the energy-saving coating inside the grinding cylinder. The stirring assembly includes a stirring tank rotatably connected to the equipment housing, a stirring cover is installed on the discharge bend, and a stirring element is threaded through the stirring cover; the stirring tank is used to receive the grinding coating material discharged from the discharge bend, and the power motor is also used to drive the stirring tank to rotate around a second direction so that the stirring element stirs the grinding coating material in the stirring tank; the first direction and the second direction are perpendicular to each other.
[0007] Optionally, the equipment housing is rotatably connected to a first reduction gear group, a second reduction gear group, a third reduction gear group, and a synchronization gear group; the output shaft of the power motor is connected to the first reduction gear group, and the synchronization gear group is connected to the third reduction gear group. The first deceleration group is used to drive the second deceleration group and the synchronization group to move. The second deceleration group is used to drive the grinding shaft to rotate around a first direction. The third deceleration group is used to drive the mixing tank to rotate around a second direction.
[0008] Optionally, the first reduction gear group includes a first reduction gear and a second reduction gear that mesh with each other, and the second reduction gear group includes a third reduction gear and a fourth reduction gear that mesh with each other. The first reduction gear is coaxially arranged with the output shaft of the power motor, the second reduction gear is coaxially arranged with the third reduction gear, and the outer diameter of the second reduction gear is smaller than the outer diameter of the fourth reduction gear.
[0009] Optionally, the outer diameter of the first reduction gear is the same as the outer diameter of the third reduction gear, and the outer diameter of the first reduction gear is smaller than the outer diameter of the second reduction gear; the distance between the third reduction gear and the power motor is smaller than the distance between the second reduction gear and the power motor.
[0010] Optionally, the grinding cylinder has an opening at one end away from the discharge bend, a feed funnel is installed at the opening, and a discharge plate is fixedly connected between the grinding cylinder and the discharge bend. The grinding cylinder is provided with a rotating shaft that is rotatably connected to the equipment housing. The rotating shaft is fixedly connected to the fourth reduction gear. A receiving platform embedded in the grinding shaft is fixedly installed on the discharge plate. One end of the grinding shaft is snapped into the rotating shaft, and the other end of the grinding shaft is rotatably connected to the receiving platform.
[0011] Optionally, the grinding shaft includes a first shaft portion, a second shaft portion, and a third shaft portion arranged sequentially. The first shaft portion is engaged with the rotating shaft, the second shaft portion is fitted with a spiral portion arranged in a spiral shape, and the third shaft portion is rotatably connected to the receiving platform. The outer wall of the third shaft is provided with a plurality of first grinding protrusions spaced apart along its circumference, and the inner wall of the grinding cylinder is provided with a plurality of second grinding protrusions spaced apart along its circumference, wherein the first grinding protrusions correspond one-to-one with the second grinding protrusions.
[0012] Optionally, the outer diameter of the second shaft portion gradually increases along the direction from the first shaft portion to the third shaft portion, and the first shaft portion, the second shaft portion, the third shaft portion, and the spiral portion are all integrally formed structures.
[0013] Optionally, the stirring assembly further includes a rotary table rotatably connected to the equipment housing, the rotary table being used to drive the stirring tank to rotate about a second direction; The third reduction gear includes a reduction worm gear fixedly sleeved with the rotary table, and a reduction worm gear meshing with the reduction worm gear is rotatably connected to the equipment housing.
[0014] Optionally, a fixing frame for fixing and supporting the grinding cylinder is fixedly connected to the equipment housing, and an overlapping part is provided on the discharge bend; The stirring cover includes a first cover and a second cover that are interlocked. The first cover and the second cover overlap the overlapping part. The stirring element is threadedly connected to the first cover. The first cover has a first clamping groove, and the second cover has a second clamping groove corresponding to the first clamping groove. The first clamping groove and the second clamping groove are used together to enclose and clamp the fixing frame.
[0015] According to a second aspect, the present invention provides a method for grinding energy-saving coatings, applied to the energy-saving coating grinding equipment described in the first aspect, comprising: Step S1: Solid powder is put into the grinding cylinder, and the grinding shaft is driven by a power motor to rotate around the first direction, so that the grinding shaft and the grinding cylinder together grind the put-in solid powder; wherein, the grinding cylinder is arranged along the first direction; In step S2, the ground powder is discharged into the mixing tank through the discharge bend, and the mixing tank is driven by the power motor to rotate around the second direction, so that the stirring element stirs the grinding coating material in the mixing tank in the opposite direction.
[0016] Compared with the prior art, the present invention has the following beneficial effects: This invention provides an energy-saving coating grinding equipment and method. By integrating grinding and stirring components onto a single equipment housing, the ground powder is directly conveyed to the stirring tank via a discharge bend, eliminating the need for manual or external mechanical material transfer. This significantly reduces time loss, energy consumption, and pollution risks caused by powder movement between equipment. Driven by a motor, the grinding shaft rotates in a first direction, while the stirring tank rotates in a second direction perpendicular to it. The independent motion of these two components helps maintain the stability of the grinding and stirring processes, avoids adverse effects from mutual movement, and improves equipment reliability. Integrating the previously separate grinding and stirring machines into a single device allows for a more compact production line layout, reduces factory space utilization costs, and is suitable for large-scale energy-saving coating production scenarios. Therefore, it solves the problem of the difficulty in achieving integrated grinding and stirring design in existing energy-saving coating grinding equipment. Attached Figure Description
[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0018] The structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which the present invention can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that the present invention can produce, should still fall within the scope of the technical content disclosed in the present invention.
[0019] Figure 1 This is a three-dimensional structural diagram of an energy-saving coating grinding device provided in an embodiment of the present invention; Figure 2 This is a schematic diagram of the main structure of an energy-saving coating grinding device provided in an embodiment of the present invention; Figure 3 This is a schematic diagram of a half-section structure of an energy-saving coating grinding device provided in an embodiment of the present invention; Figure 4 This is a partial structural schematic diagram of an energy-saving coating grinding device provided in an embodiment of the present invention; Figure 5 This is a schematic diagram of the structure of the grinding shaft in an energy-saving coating grinding device provided by an embodiment of the present invention; Figure 6This is a schematic diagram of a half-section structure of a grinding cylinder in an energy-saving coating grinding device provided in an embodiment of the present invention; Figure 7 A three-dimensional structural diagram of the discharge bend in an energy-saving coating grinding equipment provided in an embodiment of the present invention; Figure 8 This is a schematic diagram of the connection structure between the stirring cover and the stirring element in an energy-saving coating grinding device provided by an embodiment of the present invention; Figure 9 This is a cross-sectional structural diagram of the stirring cover in an energy-saving coating grinding device provided by an embodiment of the present invention; Figure 10 This is a schematic flowchart of a grinding method for an energy-saving coating provided in an embodiment of the present invention.
[0020] Illustration: 10. Equipment casing; 20. Power motor; 30. Grinding assembly; 31. Grinding cylinder; 311. Opening; 312. Second grinding protrusion; 32. Grinding shaft; 321. First shaft section; 322. Second shaft section; 323. Third shaft section; 3231. First grinding protrusion; 324. Spiral section; 33. Discharge bend; 331. Overlap section; 34. Feed hopper; 35. Discharge plate; 36. Rotating shaft; 37. Receiving platform; 40. Mixing assembly; 41. Mixing tank; 42. Mixing cover; 421. First cover; 4211. First clamping groove; 4212. First insert; 4213. Second insert; 4214. Third slot; 422. Second cover; 4221. Second clamping groove; 4222. First slot; 4223. Second slot; 4224. Third insert; 43. Mixing component; 431. Mixing rod; 432. Mixing ball; 433. Locking nut; 44. Rotary table; 50. First reduction gear group; 51. First reduction gear; 52. Second reduction gear; 60. Second reduction gear; 61. Third reduction gear; 62. Fourth reduction gear; 70. Third reduction gear; 71. Reduction worm gear; 72. Reduction worm; 80. Synchronizing assembly; 81. Synchronizing pulley; 82. Synchronizing belt; 90. Fixture. Detailed Implementation
[0021] To make the objectives, features, and advantages of this invention more apparent and understandable, the technical solutions of the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are only some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.
[0022] In the description of this invention, it should be understood that the terms "upper," "lower," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be a component positioned centrally in the connection.
[0023] The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.
[0024] This invention provides an energy-saving coating grinding device, such as... Figures 1 to 9 As shown, the device includes a housing 10, on which a power motor 20, a grinding assembly 30, and a stirring assembly 40 are mounted. The grinding assembly 30 includes a grinding cylinder 31 arranged along a first direction and a grinding shaft 32 located inside the grinding cylinder 31. A discharge bend 33 is connected to one end of the grinding cylinder 31 near the stirring assembly 40. The power motor 20 is used to drive the grinding shaft 32 to rotate around the first direction so that the grinding shaft 32 and the grinding cylinder 31 grind the energy-saving coating inside the grinding cylinder 31 together. The mixing assembly 40 includes a mixing tank 41 rotatably connected to the equipment housing 10, a mixing cover 42 installed on the discharge bend 33, and a threaded mixing element 43 passing through the mixing cover 42; the mixing tank 41 is used to receive the grinding coating material discharged from the discharge bend 33, and the power motor 20 is also used to drive the mixing tank 41 to rotate around a second direction so that the mixing element 43 stirs the grinding coating material in the mixing tank 41; the first direction and the second direction are perpendicular to each other.
[0025] It should be noted that the energy-saving coating grinding equipment provided by this invention integrates a grinding component 30 and a stirring component 40 on the same equipment housing 10. The ground powder is directly conveyed to the stirring tank 41 via a discharge bend 33, eliminating the need for manual or external mechanical material transfer. This significantly reduces time loss, energy consumption, and pollution risks caused by powder movement between equipment. Driven by a motor 20, the grinding shaft 32 rotates in a first direction, and the stirring tank 41 rotates in a second direction perpendicular to it. The independent movement of these two components helps maintain the stability of the grinding and stirring processes, avoids adverse effects from mutual movement, and improves equipment reliability. By integrating the previously separate grinding and stirring machines into a single device, the production line layout becomes more compact, reducing factory space utilization costs and making it suitable for large-scale energy-saving coating production scenarios. Therefore, it solves the problem of the difficulty in achieving integrated grinding and stirring design in existing energy-saving coating grinding equipment.
[0026] like Figures 1 to 4 As shown, the equipment housing 10 is rotatably connected to a first reduction gear group 50, a second reduction gear group 60, a third reduction gear group 70, and a synchronization group 80. The output shaft of the power motor 20 is connected to the first reduction gear group 51, and the synchronization group 80 is connected to the third reduction gear group 70. The first reduction group 50 is used to drive the second reduction group 60 and the synchronization group 80 to move. The second reduction group 60 is used to drive the grinding shaft 32 to rotate around the first direction. The third reduction group 70 is used to drive the mixing tank 41 to rotate around the second direction.
[0027] In practical implementation, the output shaft of the power motor 20 is connected to the first reduction gear group 50. The first reduction gear group 50 simultaneously drives the second reduction gear group 60 and the synchronization group 80. The second reduction gear group 60 provides a reduction drive to the grinding shaft 32 in the first direction, keeping the grinding process within a suitable speed and torque range. The third reduction gear group 70, driven by the synchronization group 80, enables the mixing tank 41 to rotate stably in the second direction, ensuring a smooth and reliable mixing process and preventing interference between grinding and mixing. Thus, a single power source can simultaneously provide power input to both the grinding shaft 32 and the mixing tank 41, reducing energy consumption, cost, and maintenance associated with multi-motor configurations. The multi-stage reduction effectively improves the control precision of power transmission, allowing both grinding and mixing speeds to maintain high torque output at lower speeds, meeting the process requirements for refining energy-saving coatings and achieving uniform mixing in subsequent processes. The multi-stage reduction and synchronous transmission effectively buffer mechanical loads during power switching and distribution, reducing equipment vibration and impact, lowering wear on reduction gears and equipment failure rates, and extending the overall service life of the machine.
[0028] like Figure 3 and Figure 4As shown, the first reduction gear group 50 includes a first reduction gear 51 and a second reduction gear 52 that mesh with each other, and the second reduction gear group 60 includes a third reduction gear 61 and a fourth reduction gear 62 that mesh with each other. The first reduction gear 51 is coaxially arranged with the output shaft of the power motor 20, the second reduction gear 52 is coaxially arranged with the third reduction gear 61, and the outer diameter of the second reduction gear 52 is smaller than the outer diameter of the fourth reduction gear 62.
[0029] In practical implementation, the first reduction gear 51 and the second reduction gear 52 form a primary reduction, while the third reduction gear 61 and the fourth reduction gear 62 form a secondary reduction. This smoothly converts the high-speed output of the power motor 20 into the low-speed, high-torque required for grinding and mixing operations, improving the power utilization efficiency of the power motor 20 and solving the problems of insufficient grinding power and insufficient mixing torque. Since the second reduction gear 52 is coaxial with the third reduction gear 61, the power connection between the grinding system and the subsequent mixing system is smoother, ensuring the stability of their working rhythms and facilitating the synchronous control of the coating grinding particle size and mixing uniformity.
[0030] like Figure 3 and Figure 4 As shown, the outer diameter of the first reduction gear 51 is the same as the outer diameter of the third reduction gear 61, and the outer diameter of the first reduction gear 51 is smaller than the outer diameter of the second reduction gear 52; the distance between the third reduction gear 61 and the power motor 20 is smaller than the distance between the second reduction gear 52 and the power motor 20.
[0031] In practical implementation, when the gear arrangement is unreasonable, the transmission path becomes lengthy, and the distance between the output end of the power motor 20 and different gears is uneven, resulting in unstable torque transmission and additional axial load. Since the outer diameters of the first reduction gear 51 and the third reduction gear 61 are the same, they achieve consistent speed transmission characteristics, ensuring the coordination of the meshing relationship between the front and rear gears. Simultaneously, the outer diameter of the first reduction gear 51 is smaller than that of the second reduction gear 52, allowing the high-speed input of the power motor 20 to quickly achieve an ideal deceleration effect through a larger speed ratio difference, which is beneficial for improving the torque output of the subsequent stage. Because the distance between the third reduction gear 61 and the power motor 20 is smaller than that between the second reduction gear 52 and the power motor 20, the front-stage force-bearing gears (first reduction gear 51 and third reduction gear 61) are brought as close as possible to the power source, reducing the cantilever load at the output end of the power motor 20, improving the meshing rigidity of the reduction gears, and reducing problems such as uneven load and gear vibration caused by excessive spacing.
[0032] like Figures 3 to 6As shown, the grinding cylinder 31 has an opening 311 at the end away from the discharge bend 33, and a feed funnel 34 is installed at the opening 311. A discharge plate 35 is fixedly connected between the grinding cylinder 31 and the discharge bend 33. In this embodiment, the discharge plate 35 is provided with a discharge hole for the ground powder to pass through. The grinding cylinder 31 is provided with a rotating shaft 36 that is rotatably connected to the equipment housing 10. The rotating shaft 36 is fixedly connected to the fourth reduction gear 62. A receiving platform 37 embedded in the grinding shaft 32 is fixedly installed on the discharge plate 35. One end of the grinding shaft 32 is snapped into the rotating shaft 36, and the other end of the grinding shaft 32 is rotatably connected to the receiving platform 37.
[0033] In specific implementation, a feed funnel 34 is set at the opening 311 of the grinding cylinder 31. The funnel's converging structure allows the powder to be ground to be quickly introduced into the grinding cylinder 31, reducing material blockage, improving feeding efficiency, and ensuring a continuous and stable grinding process. The discharge plate 35 is fixed between the grinding cylinder 31 and the discharge bend 33, acting as a material guide. This effectively prevents large particles or clumps from accumulating at the connection, ensuring that the ground material flows smoothly into the discharge bend 33, improving overall discharge efficiency. Since the rotating shaft 36 and the fourth reduction gear 62 are fixedly connected via a coupling, the power output from the motor 20 is directly output to the grinding shaft 32 through the fourth reduction gear 62. This two-stage reduction results in a larger torque, improving the grinding efficiency of the grinding shaft 32, making it suitable for grinding high-hardness particles. The receiving platform 37 on the discharge plate 35 is inserted into the grinding shaft 32, forming a precise end positioning and support structure. This effectively reduces the shaking of the grinding shaft 32, resulting in a more uniform distribution of grinding particles and improving the grinding effect of the powder. The rotating shaft 36 provides power-side support, and the receiving platform 37 provides free-end support. Together, they form a stable double-support structure, which reduces the off-center load and sway of the grinding shaft 32, improves grinding uniformity and equipment life, and solves the problems of large vibration and sway of the grinding shaft 32 during the powder grinding process.
[0034] like Figures 3 to 6 As shown, the grinding shaft 32 includes a first shaft part 321, a second shaft part 322 and a third shaft part 323 arranged in sequence. The first shaft part 321 is engaged with the rotating shaft 36. The second shaft part 322 is fitted with a spiral part 324 arranged in a spiral shape. The third shaft part 323 is rotatably connected to the receiving platform 37. The outer wall of the third shaft portion 323 is provided with a plurality of first grinding protrusions 3231 spaced apart along its circumference, and the inner wall of the grinding cylinder 31 is provided with a plurality of second grinding protrusions 312 spaced apart along its circumference, with each of the first grinding protrusions 3231 corresponding to a second grinding protrusion 312. In this embodiment, the first grinding protrusions 3231 are fixedly connected to the third shaft portion 323, and the second grinding protrusions 312 and the grinding cylinder 31 are integrally formed.
[0035] In practical implementation, the grinding shaft 32 includes a first shaft section 321, a second shaft section 322, and a third shaft section 323, allowing different sections of the grinding shaft 32 to perform different functions. The first shaft section 321 is engaged with the rotating shaft 36 to ensure efficient power input. The second shaft section 322 is responsible for material propulsion and primary grinding, while the third shaft section 323 achieves fine grinding and end support. This segmented structure significantly improves the overall functionality and efficiency of the grinding process. A spiral section 324 is fitted onto the second shaft section 322. The spiral section 324 has a significant function of propulsing and agitating the powder: continuously conveying the powder towards the discharge direction, preventing the powder from stagnating and accumulating in the grinding cylinder 31, constantly renewing the grinding contact surface, improving grinding uniformity, and solving the problems of poor powder flowability and insufficient local grinding in traditional equipment.
[0036] Because the first grinding protrusion 3231 on the outer wall of the third shaft 323 corresponds one-to-one with the second grinding protrusion 312 on the inner wall of the grinding cylinder 31, a stable opposing grinding structure is formed, generating strong shearing force, extrusion force, and friction force, realizing multi-point, continuous, and high-frequency grinding; improving particle size distribution, making the grinding particles finer and more uniform, and solving the problems of insufficient grinding structure and grinding strength in traditional grinding chambers. Because the third shaft 323 is rotatably connected to the receiving platform 37, forming a reliable tail end support, combined with the snap-fit cooperation between the first shaft 321 and the rotating shaft 36, a stable double support structure is formed, which can reduce the sway of the grinding shaft 32, reduce the vibration of the grinding shaft 32, improve the grinding accuracy of the grinding shaft 32, and extend its service life. Since the spiral part 324 is responsible for pushing the powder and the third shaft part 323 is responsible for fine grinding of the powder, the first grinding protrusion 3231 and the second grinding protrusion 312 provide forced grinding, so that the entire grinding process is completed continuously from pre-propulsion to coarse grinding and then to fine grinding. In the end, the energy-saving coating particles are finer, more uniformly dispersed, and more stable in performance, which improves the quality of subsequent mixing.
[0037] like Figure 3 and Figure 5 As shown, the outer diameter of the second shaft portion 322 gradually increases along the direction from the first shaft portion 321 to the third shaft portion 323. The first shaft portion 321, the second shaft portion 322, the third shaft portion 323, and the spiral portion 324 are all integrally formed structures.
[0038] In practical implementation, as the outer diameter of the second shaft portion 322 gradually increases along the direction from the first shaft portion 321 to the third shaft portion 323, a compression flow channel is formed within the grinding chamber. This enhances the driving force of the powder towards the discharge direction, forcing the powder to continuously renew the contact surface and preventing powder stagnation and accumulation. It also increases the residence time of the powder in different grinding sections, improving grinding uniformity and improving the particle size distribution of the powder, achieving a finer grinding effect. This solves the problems of insufficient powder renewal and uneven grinding intensity caused by the traditional fixed diameter. The gradually increasing outer diameter, in conjunction with the spiral portion 324, forms a continuous propulsive grinding flow field, allowing the powder to gradually transition from the coarse grinding zone to the fine grinding zone, forming a natural graded grinding path. This increases the grinding density in the third shaft portion 323 area, significantly enhancing the final fine grinding effect. It also solves the problems of unclear functional division and uneven transition of the grinding sections in the grinding shaft 32.
[0039] like Figure 3 and Figure 4 As shown, the stirring assembly 40 also includes a rotary table 44 rotatably connected to the equipment housing 10, the rotary table 44 being used to drive the stirring tank 41 to rotate around the second direction; The third reduction gear group 70 includes a reduction worm gear 71 fixedly sleeved with the rotary table 44. A reduction worm 72 meshing with the reduction worm gear 71 is rotatably connected to the equipment housing 10. The reduction worm 72 is arranged along a first direction. In this embodiment, the synchronization group 80 includes a synchronization pulley 81 and a synchronization belt 82, which are rotatably connected to the equipment housing 10. One synchronization pulley 81 is coaxially arranged with the second reduction gear 52, and the other synchronization pulley 81 is fixedly sleeved on the outer wall of the reduction worm 72. The synchronization belt 82 is wound around the two synchronization pulleys 81. The second direction is vertical, and the first direction is horizontal.
[0040] In practical implementation, by mounting the mixing tank 41 on the rotary table 44 and having the rotary table 44 drive it to rotate synchronously around the second direction, the rotation of the mixing tank 41 becomes more stable, unaffected by tank eccentricity, and has a strong load-bearing capacity, making it suitable for mixing high-viscosity or large-capacity coatings. This reduces energy loss caused by friction between the mixing tank 41 and the equipment housing 10, solving the problems of eccentricity, vibration, and insufficient torque caused by the traditional direct shaft drive of the mixing tank 41. The reduction worm gear 72 drives the reduction worm wheel 71 to rotate around the second direction, causing the rotary table 44 to drive the mixing tank 41 to rotate. This easily achieves a large reduction ratio and high output torque, allowing the mixing tank 41 to rotate stably even under high-viscosity conditions. The reduction worm gear 72 and the reduction worm wheel 71 have self-locking characteristics, preventing the mixing tank 41 from reversing due to gravity or inertia, thus improving the safety of the mixing operation. The synchronization group 80 consists of two synchronous pulleys 81 and a synchronous belt 82, realizing synchronous power transmission.
[0041] like Figures 3 to 9As shown, a fixing frame 90 for fixing and supporting the grinding cylinder 31 is fixedly connected to the equipment housing 10, and an overlapping part 331 is provided on the discharge bend 33. The stirring cover 42 includes a first cover body 421 and a second cover body 422 that are interlocked. The first cover body 421 and the second cover body 422 are both overlapped at the overlap portion 331. The stirring component 43 is threadedly connected to the first cover body 421. The first cover body 421 is provided with a first clamping groove 4211, and the second cover body 422 is provided with a second clamping groove 4221 corresponding to the first clamping groove 4211. The first clamping groove 4211 and the second clamping groove 4221 are used together to enclose and clamp the fixing frame 90. In this embodiment, the first cover 421 is provided with a first insert 4212 and a second insert 4213, and the second cover 422 is provided with a first slot 4222 that engages with the first insert 4212 and a second slot 4223 that engages with the second insert 4213. The first insert 4212 is disposed adjacent to the fixing frame 90, and the second insert 4213 is disposed adjacent to the overlapping part 331. The first cover 421 is provided with a third slot 4214 disposed adjacent to the stirring component 43, and the second cover 422 is provided with a third insert 4224 that engages with the third slot 4214. The stirring component 43 includes a stirring shaft threadedly connected to the first cover 421. One end of the stirring shaft located inside the stirring tank 41 is provided with a stirring ball 432 fixedly connected to the stirring shaft. A locking nut 433 that contacts the first cover 421 is threadedly connected to the stirring shaft. The fixing frame 90 is provided with a boss, and both the first cover 421 and the second cover 422 overlap the boss.
[0042] In practical implementation, since the first cover 421 and the second cover 422 are respectively provided with a first clamping groove 4211 and a second clamping groove 4221, the two clamp the fixing frame 90 after they are enclosed, making the positioning of the stirring cover 42 more stable and preventing it from shifting with the rotation of the mixing tank 41, thus enhancing the overall support strength of the discharge bend 33 and the stirring cover 42. Since the first cover 421 and the second cover 422 are plug-in, it is easy to quickly assemble and disassemble the stirring cover 42. The overlapping part 331 on the discharge bend 33 simultaneously supports the first cover 421 and the second cover 422, achieving double-sided support, enhancing the sealing ability of the stirring cover 42, and reducing leakage or seepage caused by uneven force on the stirring cover 42 during mixing; the assembly operation of the stirring cover 42 is simpler, improving maintenance efficiency and solving the problems of poor sealing performance and difficult assembly and disassembly of the stirring cover 42.
[0043] Since the first cover 421 is provided with a first insert 4212 and a second insert 4213, and the second cover 422 is provided with a corresponding first slot 4222 and a second slot 4223; a third slot 4214 is also provided to cooperate with the third insert 4224, forming three sets of plug-in structures. The multi-point plug-in provides the stirring cover 42 with higher torsional strength and stability. The combination of each insert and slot can prevent the cover from being misaligned, rotated, or tilted. Since the two inserts are respectively close to the fixing frame 90 and the overlapping part 331, they form a double limit on the stirring cover 42, solving the problem that the traditional stirring cover 42 is prone to displacement or rotation under long-term vibration. Since the stirring shaft is threadedly connected to the first cover 421, and a locking nut 433 is added to fit tightly against the first cover 421, a secondary locking of the stirring shaft is achieved after the threaded connection, preventing the stirring shaft from loosening due to vibration, improving the axial positioning accuracy of the stirring shaft, and extending the reliability of the stirring component 43 during long-term operation. Because the stirring shaft is located at one end inside the mixing tank 41, and is fixedly connected to the stirring ball 432, the spherical structure of the stirring ball 432 generates multi-directional disturbance, realizing three-dimensional stirring of the powder, making the flow of the coating more uniform, improving the dispersion effect of the energy-saving coating, strengthening the local shear force, and is suitable for mixing high-viscosity coatings; and solves the problems of insufficient shear force and uneven powder mixing of ordinary stirring blades.
[0044] This invention also provides a grinding method for energy-saving coatings, applied to the aforementioned energy-saving coating grinding equipment, such as... Figure 10 As shown, it includes: Step S1: Solid powder is put into the grinding cylinder 31, and the grinding shaft 32 is driven to rotate around the first direction by the power motor 20, so that the grinding shaft 32 and the grinding cylinder 31 grind the put-in solid powder together; wherein, the grinding cylinder 31 is arranged along the first direction. In step S2, the ground powder is discharged into the mixing tank 41 through the discharge bend 33. The mixing tank 41 is driven to rotate in the second direction by the power motor 20, so that the stirring element 43 stirs the ground coating material in the mixing tank 41 in the reverse direction. In this embodiment, according to the requirements of the actual mixing operation, other additives, functional agents and other materials can be added to the mixing tank 41 to achieve full mixing of the energy-saving coating.
[0045] It should be noted that by executing steps S1 and S2 sequentially, the solid powder can be directly transferred into the mixing tank 41 for mixing after grinding without manual transfer, avoiding process interruption, improving production cycle time, and significantly saving equipment changeover and material transportation time. In step S1, the grinding shaft 32 is driven to rotate around the first direction by the power motor 20. The grinding shaft 32 and the grinding cylinder 31 form a counter-acting force, realizing strong shearing at multiple points and in multiple directions, which rapidly refines the powder particles, makes the particle size distribution more uniform, and improves the stability of the energy-saving coating. In step S2, by using the rotation of the tank and the counter-stirring of the stirring component 43, a strong composite flow field can be generated, making the powder more fully agitated and forming a three-dimensional mixture; effectively eliminating stirring dead zones; having good adaptability to high viscosity and high solids content coatings; and simultaneously improving the mixing efficiency and quality of the stirring component 40.
[0046] The above-described embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims
1. An energy-saving coating grinding equipment, characterized in that, The device includes a housing (10), on which a power motor (20), a grinding assembly (30), and a stirring assembly (40) are mounted. The grinding assembly (30) includes a grinding cylinder (31) arranged along a first direction and a grinding shaft (32) located inside the grinding cylinder (31). A discharge bend (33) is connected to one end of the grinding cylinder (31) near the stirring assembly (40). The power motor (20) is used to drive the grinding shaft (32) to rotate around the first direction so that the grinding shaft (32) and the grinding cylinder (31) jointly grind the energy-saving coating inside the grinding cylinder (31). The stirring assembly (40) includes a stirring tank (41) rotatably connected to the equipment housing (10), a stirring cover (42) is installed on the discharge bend (33), and a stirring element (43) with a threaded connection is provided on the stirring cover (42); the stirring tank (41) is used to receive the grinding coating material discharged from the discharge bend (33), and the power motor (20) is also used to drive the stirring tank (41) to rotate around a second direction so that the stirring element (43) stirs the grinding coating material in the stirring tank (41); the first direction and the second direction are perpendicular to each other.
2. The energy-saving coating grinding equipment according to claim 1, characterized in that, The equipment housing (10) is rotatably connected to a first reduction gear group (50), a second reduction gear group (60), a third reduction gear group (70), and a synchronization group (80). The output shaft of the power motor (20) is connected to the first reduction gear group (51), and the synchronization group (80) is connected to the third reduction gear group (70). The first deceleration group (50) is used to drive the second deceleration group (60) and the synchronization group (80) to move. The second deceleration group (60) is used to drive the grinding shaft (32) to rotate around the first direction. The third deceleration group (70) is used to drive the mixing tank (41) to rotate around the second direction.
3. The energy-saving coating grinding equipment according to claim 2, characterized in that, The first reduction gear group (50) includes a first reduction gear (51) and a second reduction gear (52) meshing with each other, and the second reduction gear group (60) includes a third reduction gear (61) and a fourth reduction gear (62) meshing with each other. The first reduction gear (51) is coaxially arranged with the output shaft of the power motor (20), the second reduction gear (52) is coaxially arranged with the third reduction gear (61), and the outer diameter of the second reduction gear (52) is smaller than the outer diameter of the fourth reduction gear (62).
4. The energy-saving coating grinding equipment according to claim 3, characterized in that, The outer diameter of the first reduction gear (51) is the same as that of the third reduction gear (61), and the outer diameter of the first reduction gear (51) is smaller than that of the second reduction gear (52); the distance between the third reduction gear (61) and the power motor (20) is smaller than the distance between the second reduction gear (52) and the power motor (20).
5. The energy-saving coating grinding equipment according to claim 3, characterized in that, The grinding cylinder (31) has an opening (311) at one end away from the discharge bend (33), and a feed funnel (34) is installed at the opening (311). A discharge plate (35) is fixedly connected between the grinding cylinder (31) and the discharge bend (33). The grinding cylinder (31) is provided with a rotating shaft (36) that is rotatably connected to the equipment housing (10). The rotating shaft (36) is fixedly connected to the fourth reduction gear (62). A receiving platform (37) embedded in the grinding shaft (32) is fixedly installed on the discharge plate (35). One end of the grinding shaft (32) is engaged with the rotating shaft (36), and the other end of the grinding shaft (32) is rotatably connected to the receiving platform (37).
6. The energy-saving coating grinding equipment according to claim 5, characterized in that, The grinding shaft (32) includes a first shaft part (321), a second shaft part (322) and a third shaft part (323) arranged in sequence. The first shaft part (321) is engaged with the rotating shaft (36). The second shaft part (322) is fitted with a spiral part (324) arranged in a spiral shape. The third shaft part (323) is rotatably connected to the receiving platform (37). The outer wall of the third shaft (323) is provided with a plurality of first grinding protrusions (3231) distributed circumferentially, and the inner wall of the grinding cylinder (31) is provided with a plurality of second grinding protrusions (312) distributed circumferentially, with the first grinding protrusions (3231) and the second grinding protrusions (312) corresponding one-to-one.
7. The energy-saving coating grinding equipment according to claim 6, characterized in that, The outer diameter of the second shaft portion (322) gradually increases from the first shaft portion (321) to the third shaft portion (323). The first shaft portion (321), the second shaft portion (322), the third shaft portion (323) and the spiral portion (324) are all integrally formed structures.
8. The energy-saving coating grinding equipment according to claim 2, characterized in that, The stirring assembly (40) further includes a rotary table (44) rotatably connected to the equipment housing (10), the rotary table (44) being used to drive the stirring tank (41) to rotate around a second direction; The third reduction gear (70) includes a reduction worm gear (71) fixedly sleeved with the rotary table (44), and the equipment housing (10) is rotatably connected to a reduction worm (72) meshing with the reduction worm gear (71).
9. The energy-saving coating grinding equipment according to claim 8, characterized in that, A fixing frame (90) for fixing and supporting the grinding cylinder (31) is fixedly connected to the equipment housing (10), and an overlapping part (331) is provided on the discharge bend (33). The stirring cover (42) includes a first cover (421) and a second cover (422) that are interlocked with each other. The first cover (421) and the second cover (422) overlap the overlapping part (331). The stirring component (43) is threadedly connected to the first cover (421). The first cover (421) is provided with a first clamping groove (4211), and the second cover (422) is provided with a second clamping groove (4221) corresponding to the first clamping groove (4211). The first clamping groove (4211) and the second clamping groove (4221) are used together to enclose and clamp the fixing frame (90).
10. A grinding method for energy-saving coatings, applied to the energy-saving coating grinding equipment according to any one of claims 1 to 9, characterized in that, include: Step S1: Solid powder is put into the grinding cylinder (31), and the grinding shaft (32) is driven to rotate around the first direction by the power motor (20), so that the grinding shaft (32) and the grinding cylinder (31) grind the put-in solid powder together; wherein, the grinding cylinder (31) is arranged along the first direction; In step S2, the ground powder is discharged into the mixing tank (41) through the discharge bend (33), and the mixing tank (41) is driven to rotate around the second direction by the power motor (20), so that the stirring component (43) stirs the grinding coating material in the mixing tank (41) in the opposite direction.