A grinding device and process for processing insulating powder coating

Abstract

The invention discloses a grinding device and process for processing insulating powder coatings, which belongs to the technical field of grinding equipment. A clearing component with a blowing function is added to the lower end wall of an arc-shaped sieve plate, and a valve plate with a pressure sensor is added to the upper end of a blanking box. The pressure sensor is used to detect the pressure of the falling dust to determine whether blockage occurs at the sieve hole. When blockage occurs, the arc-shaped sieve plate is flipped downward to create a clearing gap with the bottom end of the grinding roller. When the arc-shaped sieve plate is flipped downward, the clearing belt is appropriately rolled into a driving box. The blowing ports on the clearing belt correspond to the positions of the sieve holes. The cooperation of an air pump 1 and an air inlet box is used to blow air toward the sieve holes through multiple blowing ports to flush the powder blocked at the sieve holes upward. The cooperation of an air pump 2 and a collecting box is used to suck the powder flushed upward into the collecting box to prevent the powder from flying. No manual clearing is required, and the operation is simple and feasible.

Description

Technical Field

[0001] The present invention relates to the technical field of grinding equipment, and more particularly to a grinding device and process for processing insulating powder coatings. Background Art

[0002] With the rapid development of industry, the use of various types of motors is becoming increasingly frequent. Insulation materials are indispensable for electrical equipment, and insulation is an essential assessment standard that is directly related to the performance of the motor and plays a decisive role in its stability and service life. Insulating powder coating is a type of insulating material that forms an insulating film when applied to the surface of a conductor, providing insulation protection.

[0003] During the production and processing of coating ingredients, various raw materials must be ground into powder. This process is typically performed using existing ball mills or grinding equipment. Due to the fine powder form, the ground powder easily accumulates in the sieve mesh during the grinding process. Once clogged, this affects the powder discharge rate. Automatic clearing of the blockage is often difficult, requiring manual unblocking, which is cumbersome and inconvenient.

[0004] In view of the above situation, we propose a grinding device and process for insulating powder coating processing with anti-clogging function to effectively solve the practical problems existing in the prior art. Summary of the Invention

[0005] The purpose of the present invention is to solve the problem that the existing powder grinding device is easy to clog the sieve holes and is difficult to handle. Compared with the existing technology, a grinding device and process for insulating powder coating processing are provided. By adding a clearing component with a blowing function to the lower end wall of the arc-shaped sieve plate that is in friction fit with the bottom end of the grinding roller, when blockage occurs, the arc-shaped sieve plate is flipped downward to create a clearing gap with the bottom end of the grinding roller. When the arc-shaped sieve plate is flipped downward, the clearing belt is appropriately rolled into the driving box 1. The blowing ports on the clearing belt correspond to the positions of the sieve holes. By utilizing the cooperation of air pump 1 and the air inlet box, air is blown to the sieve holes through multiple blowing ports to flush the powder blocked at the sieve holes upward, thereby realizing the clearing operation at the sieve holes. In the clearing process, the cooperation of air pump 2 and the collecting box is utilized to suck the powder flushed upward into the collecting box to prevent the powder from flying. No manual clearing is required, and the operation is simple and feasible.

[0006] The purpose of the present invention can be achieved through the following technical solutions:

[0007] A grinding device for processing insulating powder coatings includes a grinding box, a grinding roller is rotatably installed inside the top of the grinding box, a driving motor for driving the grinding roller is fixedly installed on the outer end wall of the grinding box, a driving box located on one side of the upper end of the grinding roller is fixedly installed inside the grinding box, a grinding plate sleeved on the lower end wall of the grinding roller is provided inside the driving box, the grinding plate includes a connecting plate fixedly passing through the inside of the driving box, the upper end of the connecting plate is fixedly connected to the inner wall of the grinding box, the lower end of the connecting plate is rotatably connected to the arc-shaped screen plate, the lower end of the arc-shaped screen plate passes through the driving box and sleeved on the bottom end wall of the grinding roller, the arc-shaped screen plate The upper end passes around the grinding roller and is fixed to the inner wall of the other side of the grinding box through an elastic material guide component. The arc-shaped screen plate fits with the bottom end of the grinding roller and a plurality of screen holes are provided on the corresponding end wall. The front and rear ends of the arc-shaped screen plate and the connecting plate are rotatably connected to the drive box one relative to the inner wall through a rotating shaft one. A winding roller is also rotatably installed inside the drive box one. A driving motor two is fixedly connected to the rear end wall of the drive box one to drive the winding roller. The other end of the winding roller is fixedly connected to a rotating shaft two that penetrates the outer side of the drive box one, and the rotating shaft one in the same direction also penetrates the outer end of the drive box one and is connected to the rotating shaft two through a transmission belt.

[0008] The air intake box is fixedly connected to the lower side wall near the upper end of the arc-shaped screen plate, and a clearing assembly mounted on the bottom end surface of the grinding plate is connected between the air intake box and the winding roller. The clearing assembly includes an elastic belt connected to the inside of the air intake box, the lower end of the elastic belt is fixedly connected to the clearing belt, and the other end of the clearing belt passes through the bottom end of a driving box and is wound around the winding roller. An air pump connected to the end of the air intake box is fixedly installed on the outer wall of the grinding box. A blanking port is provided on the end wall of the clearing belt below the sieve hole, and a plurality of blowing ports connected to the interior of the clearing belt are embedded on the inner end wall above the blanking port and close to the elastic band. A blanking box located below the grinding roller is placed at the bottom of the grinding box, and a valve plate is rotatably connected to the inner end wall of the blanking box near the upper end, and a pressure sensor is installed on the valve plate.

[0009] Furthermore, the elastic material guide assembly includes an arc-shaped material guide piece 1 fixedly connected to the inner side of the upper end of the arc-shaped screen plate, and the upper end of the arc-shaped material guide piece 1 is fixedly connected to an elastic traction belt connected to the inner wall of the top end of the grinding box. The elastic traction belt and the arc-shaped material guide piece 1 cooperate to play a traction role on the arc-shaped screen plate.

[0010] Furthermore, the arc-shaped screen plate is fitted with the bottom end of the grinding roller, and a corresponding lower end wall is provided with a blast groove connected to the blanking port, and the blast groove is connected to the multiple sieve holes.

[0011] Furthermore, the elastic belt is made of elastic material and has a hollow bag-like structure. The clearing belt is located above the blanking port and has a flow groove connected to the elastic belt, and multiple air ports are connected to the flow groove.

[0012] Furthermore, a collection box located on the inner side of an arc-shaped guide piece is fixedly installed on the inner wall of the upper end of the arc-shaped screen plate, and an air pump 2 connected to the interior of the collection box is fixedly installed on the collection box. A suction channel that passes through the bottom of the arc-shaped guide piece is fixedly connected to the bottom of the collection box, and the suction channel is fitted with the inner wall of the arc-shaped screen plate.

[0013] Furthermore, the top wall of the grinding box is fixedly connected with an arc-shaped guide piece 2 located above the side of the grinding roller close to the arc-shaped guide piece 1, and a feeding cavity is reserved between the arc-shaped guide piece 2 and the arc-shaped guide piece 1.

[0014] Furthermore, the width of the blanking box is greater than the width of the blanking port, and the length of the blanking box is less than the length of the grinding roller. The front and rear end walls of the grinding box are fixedly connected with inclined guide plates located above the front and rear end of the blanking box, shortening the length of the blanking box and facilitating flexible placement of the blanking box. The addition of inclined guide plates facilitates the introduction of powder falling through the sieve holes at the front and rear ends into the blanking box through the inclined guide plates.

[0015] Optionally, a driving box 2 is fixedly embedded on one side of the top of the blanking box, a rotating shaft fixedly connected to the end of the valve plate is rotatably installed inside the driving box 2, and a driving motor 3 for driving the rotating shaft is fixedly installed on the outer end of the driving box 2.

[0016] Optionally, the pressure sensor is externally connected to an industrial control system, which includes a central processing module and a risk assessment module. The pressure sensor is provided with an information acquisition module, which collects the pressure of the dust falling on the end surface of the valve plate within a specified time threshold to obtain a pressure information value, assigns a time threshold range between T1 and T2, and assigns pressure information values ​​S1 and S2 generated by the powder within the time threshold, S2 indicates that the powder reaches a maximum dumping amount within the time T1-T2, and S1 indicates that the powder reaches a minimum dumping amount within the time T1-T2. The information acquisition module transmits the pressure information value to the risk assessment module, which analyzes and monitors the pressure information value, and uses the central processing module to coordinate and regulate the drive motor three, drive motor two, air pump one, air pump two, and drive motor one;

[0017] The specific control steps are as follows:

[0018] Step 1: The pressure sensor obtains the pressure information value caused by the powder falling on the valve plate. When the pressure information value detected by the pressure sensor reaches S2 between T1 and T2, it means that the powder has reached the maximum dumping amount within the time T1-T2. The central processing module controls the start of the drive motor 3, which drives the rotating shaft and the valve plate to tilt downward and flip, dumping the powder on the upper end surface of the valve plate into the blanking box. The drive motor 3 is then used to flip the valve plate, and the valve plate returns to its initial state to continue to receive the powder.

[0019] Step 2: After the valve plate returns to its initial state, the timing is restarted. When the pressure sensor detects a pressure information value of S1-S2 at T2, it is marked as a level 2 risk warning. The central processing module controls the drive motor 1 to increase its rotation speed. At the same time, the central processing module controls the drive motor 3 to start, dumping the powder on the upper end surface of the valve plate into the blanking box;

[0020] Step 3: After the valve plate returns to its initial state, the timing is restarted. Under the premise of the second-level risk warning, the rotation rate of the drive motor 1 is increased. When the pressure sensor detects that the pressure information value is less than or equal to S1 when T2 is reached, it is marked as a first-level risk warning. At this time, the drive motor 1 is turned off and the drive motor 2 is started to drive the arc sieve plate and the winding roller to rotate synchronously. When the arc sieve plate is flipped to a suitable angle, a clearing gap is formed between the arc sieve plate and the bottom of the grinding roller. The air blowing port on the clearing belt is located just below the sieve hole. At this time, the air pump 1 is used in conjunction with the air inlet box to blow air to the sieve hole through multiple air blowing ports to flush the powder blocked at the sieve hole upward. At the same time, the air pump 2 is used in conjunction with the collection box to suck the powder flushed upward into the collection box to prevent the powder from flying.

[0021] Step 4: After the powder blockage is cleared, turn off air pump 1 and air pump 2, and then drive motor 2 to reverse, the arc sieve plate returns to its initial state, and under the elastic action of the elastic belt, the elastic belt and the blockage-clearing belt also return to their initial state, and the grinding roller returns to its initial rotation speed. The dust collected inside the collection box falls through the suction channel. After the blockage is cleared, the grinding operation is carried out, and the powder on the valve plate is dumped, and the timing is restarted. Subsequent continuous grinding operations are carried out in this way.

[0022] A grinding process for processing insulating powder coatings includes the following operation procedures:

[0023] S1. The paint ingredients to be processed are introduced through one side of the upper end of the curved sieve plate, and then introduced between the grinding roller and the curved sieve plate. The grinding roller grinds the paint ingredients during rotation, and the ground powder is discharged downward through the sieve holes and received by the valve plate at the upper end of the blanking box;

[0024] S2: A pressure sensor is added to the end surface of the valve plate to detect the powder pressure. When the pressure sensor detects that the pressure information value reaches S2 between time T1 and T2, the valve plate is driven to tilt downward and flip, and the powder on the upper end of the valve plate is dumped into the blanking box;

[0025] S3, during the re-timing process, when the time reaches T2 and the pressure sensor detects that the pressure information value is between S1 and S2, the grinding roller speed is increased to improve the powder discharge efficiency, and when the time reaches T2, the valve plate is driven to tilt downward and flip, and the powder on the upper end of the valve plate is dumped into the blanking box;

[0026] S4. During the grinding process with increasing the speed of the grinding roller, during the retiming process, when the time reaches T2, the pressure sensor detects that the pressure information value is less than or equal to S1, indicating that the sieve hole is in a blocked state during the grinding process. At this time, the grinding roller is closed, the grinding operation is stopped, and the arc-shaped sieve plate is tilted downward. During the rotation of the arc-shaped sieve plate, the clearing belt at its bottom end is appropriately wound by the winding roller. The air pump 1 cooperates with the air inlet box and blows air upward from the blowing port to the sieve hole to complete the clearing operation. During the clearing process, the air pump 2 cooperates with the collection box to absorb and collect the powder blown upward to prevent the powder from flying.

[0027] S5. After the clearing work is completed, the curved screen plate and the clearing assembly return to their initial state, and continue the grinding operation at the initial speed of the grinding roller.

[0028] Compared with the prior art, the advantages of the present invention are:

[0029] (1) This solution adds a clearing component with a blowing function to the lower end wall of the arc-shaped screen plate that is in friction contact with the bottom end of the grinding roller. When a blockage occurs, the arc-shaped screen plate is turned downward to create a clearing gap with the bottom end of the grinding roller. When the arc-shaped screen plate is turned downward, the clearing belt is appropriately rolled into the driving box 1. The blowing port on the clearing belt corresponds to the position of the sieve hole. The air pump 1 cooperates with the air inlet box to blow air to the sieve hole through multiple blowing ports, and the powder blocked in the sieve hole is flushed upward to achieve the clearing operation at the sieve hole. In the clearing process, the air pump 2 cooperates with the collection box to suck the powder flushed upward into the collection box to prevent the powder from flying. No manual clearing is required, and the operation is simple and feasible.

[0030] (2) This solution adds a valve plate with a pressure sensor installed on the upper end of the blanking box, connects the pressure sensor to the industrial control system, and allows the ground powder to fall onto the valve plate. The pressure sensor is used to collect the pressure of the dust falling on the upper end face of the valve plate within a specified time threshold to obtain a pressure information value. The pressure information value is evaluated by the risk assessment unit in the industrial control system to determine whether there is blockage at the sieve hole. When the assessment information reaches the second-level risk warning or the first-level risk warning, the central control module in the industrial control system makes reasonable adjustments in real time and performs effective clearing to avoid affecting the discharge efficiency due to untimely clearing operations, thereby further improving the grinding efficiency of the grinding device. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the front structure of the present invention;

[0032] Figure 2 It is a schematic diagram of the rear structure of the present invention;

[0033] Figure 3 This is a cross-sectional view of the interior of the grinding box of the present invention;

[0034] Figure 4 It is a structural schematic diagram of the junction of the grinding roller and the grinding plate of the present invention;

[0035] Figure 5 It is a structural schematic diagram of the grinding plate of the present invention;

[0036] Figure 6 It is a structural schematic diagram of the blockage clearing component of the present invention;

[0037] Figure 7 It is a structural schematic diagram of the joint between the blanking box and the valve plate of the present invention;

[0038] Figure 8 The state of the present invention during the grinding process is shown in FIG. Figure 1 ;

[0039] Figure 9 The state of the present invention during the grinding process is shown in FIG. Figure 2 ;

[0040] Figure 10 It is a schematic diagram of the state of the present invention during the blockage clearing process.

[0041] Description of the numbers in the figure:

[0042] 1. Grinding box; 2. Grinding roller; 21. Driving motor 1; 3. Grinding plate; 31. Connecting plate; 32. Arc-shaped sieve plate; 321. Sieve hole; 4. Driving box 1; 5. Winding roller; 51. Driving motor 2; 6. Transmission belt; 7. Clearing assembly; 71. Elastic belt; 72. Clearing belt; 721. Blanking port; 722. Air port; 8. Air inlet box; 9. Air pump 1; 10. Collecting box; 11. Suction channel; 12. Air pump 2; 13. Arc-shaped guide plate 1; 14. Elastic traction belt; 15. Blanking box; 16. Valve plate; 17. Pressure sensor; 18. Driving box 2; 19. Rotating shaft; 20. Driving motor 3. DETAILED DESCRIPTION

[0043] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making creative work shall fall within the scope of protection of the present invention.

[0044] Example 1.

[0045] The present invention discloses a grinding device for processing insulating powder coatings. Figures 1-4 , including a grinding box 1, a grinding roller 2 is rotatably installed inside the top of the grinding box 1, a driving motor 21 for driving the grinding roller 2 is fixedly installed on the outer end wall of the grinding box 1, a driving box 4 is fixedly installed on the upper side of the grinding roller 2 inside the grinding box 1, a grinding plate 3 is sleeved on the lower end wall of the grinding roller 2 inside the driving box 4, the grinding plate 3 includes a connecting plate 31 fixedly passing through the inside of the driving box 4, the upper end of the connecting plate 31 is fixedly connected to the inner wall of the grinding box 1, and the lower end of the connecting plate 31 is rotatably connected to the arc-shaped screen plate 32, the arc-shaped screen The lower end of the plate 32 passes through the drive box 4 and is sleeved on the bottom end wall of the grinding roller 2. The upper end of the arc-shaped sieve plate 32 bypasses the grinding roller 2 and is fixed to the inner wall of the other side of the grinding box 1 through an elastic material guide component. The arc-shaped sieve plate 32 fits with the bottom end of the grinding roller 2 and a plurality of sieve holes 321 are provided on the corresponding end wall. A blanking box 15 is placed at the bottom of the grinding box 1 below the grinding roller 2. When the grinding roller 2 rotates, the paint ingredients are introduced into the gap between the grinding roller 2 and the arc-shaped sieve plate 32 to realize the grinding operation, and the ground powder falls into the blanking box 15 through the sieve holes 321.

[0046] See also Figure 4-Figure 6 and Figure 8 The front and rear ends of the arc-shaped screen plate 32 and the connecting plate 31 are rotatably connected to the inner wall of the drive box 1 4 through a rotating shaft 1. A winding roller 5 is also rotatably installed inside the drive box 1 4. A driving motor 2 51 is fixedly connected to the rear end wall of the drive box 1 4 to drive the winding roller 5. The other end of the winding roller 5 is fixedly connected to a rotating shaft 2 that passes through the outside of the drive box 1 4, and a rotating shaft 1 in the same direction also passes through the outer end of the drive box 1 4 and is connected to the rotating shaft 2 through a transmission belt 6. The elastic material guide assembly includes an arc guide fixedly connected to the inner side of the upper end of the arc-shaped screen plate 32. The material piece 13, the upper end of the arc-shaped guide piece 13 is fixedly connected to an elastic traction belt 14 connected to the inner wall of the top of the grinding box 1, and the elastic traction belt 14 cooperates with the arc-shaped guide piece 13 to pull the arc-shaped screen plate 32, which is beneficial to the material guiding function on the one hand, and on the other hand, helps the arc-shaped screen plate 32 to improve the resistance to pressure on the grinding roller 2 during the grinding process. When the arc-shaped screen plate 32 rotates along the bottom end of the connecting plate 31, it also plays a restraining role on the stable state of the arc-shaped screen plate 32 after rotation, which helps to improve the stability of the arc-shaped screen plate 32;

[0047] See also Figure 3-Figure 6The air pump 9 that is connected with the end part of air inlet box 8 is fixedly mounted on the outer wall of grinding box 1, and a blanking port 721 is provided on the end wall of blanking port 72 below sieve hole 321, and the blanking port 72 is located above the blanking port 721 and is embedded with a plurality of blowing ports 722 that are connected with the interior of grinding plate 3, close to the inner end wall of elastic band 71. Figure 10 The arc-shaped screen plate 32 and the winding roller 5 are driven by the driving motor 2 51 to rotate synchronously. The arc-shaped screen plate 32 tilts downward during the rotation and separates from the bottom end of the grinding roller 2 to facilitate the blockage clearing operation. The end of the blockage clearing belt 72 is wound by the winding roller 5, so that the blanking port 721 moves toward the side of the driving box 1 4 and covers the end wall of the arc-shaped screen plate 32 where the sieve hole 321 is not opened, and the multiple air blowing ports 722 on the blockage clearing belt 72 are located directly below the sieve hole 321.

[0048] The arc-shaped sieve plate 32 fits in with the bottom end of the grinding roller 2, and the corresponding lower end wall is provided with a blast groove connected to the blanking port 721, and the blast groove is connected to multiple sieve holes 321. The elastic belt 71 is made of elastic material and has a hollow bag-like structure inside. The clearing belt 72 is located above the blanking port 721 and has a circulation groove connected to the elastic belt 71 inside, and multiple blowing ports 722 are connected to the circulation groove. The addition of the blast groove, on the one hand, reduces the depth of the sieve hole 321 and facilitates powder blanking. On the other hand, when the multiple blowing ports 722 rotate to the bottom of the blast groove, with the cooperation of the air inlet box 8 and the air pump 9, the multiple blowing ports 722 are used to introduce gas into the blast groove. The gas is evenly dispersed upward and the powder blocked in the multiple sieve holes 321 is flushed upward, which is beneficial to the cleaning of powder blockage.

[0049] A collecting box 10 located on the inner side of an arc-shaped guide piece 13 is fixedly mounted on the inner wall of the upper end of the arc-shaped sieve plate 32. An air pump 12 connected to the interior of the collecting box 10 is fixedly mounted on the collecting box 10. A suction channel 11 extending to the bottom of the arc-shaped guide piece 13 is fixedly connected to the bottom of the collecting box 10. The suction channel 11 is fitted against the inner wall of the arc-shaped sieve plate 32. The powder rushing upward is sucked into the collecting box 10 by means of the cooperation between the air pump 12 and the collecting box 10 to prevent the powder from flying.

[0050] See also Figure 3It should be added that the top wall of the grinding box 1 is fixedly connected to an arc-shaped guide piece 2 located above the grinding roller 2 near the arc-shaped guide piece 13. A feeding cavity is reserved between the arc-shaped guide piece 2 and the arc-shaped guide piece 13. The width of the blanking box 15 is greater than the width of the blanking port 721. The length of the blanking box 15 is less than the length of the grinding roller 2. The front and rear end walls of the grinding box 1 are fixedly connected with inclined guide plates located above the front and rear end of the blanking box 15. The length of the blanking box 15 is shortened to facilitate the flexible placement of the blanking box 15. The inclined guide plates are added to facilitate the introduction of powder falling through the sieve holes 321 at the front and rear ends into the blanking box 15 by the inclined guide plates.

[0051] Example 2.

[0052] In this embodiment, based on the first embodiment, a valve plate 16 with powder weight detection function is added to the top of the blanking box 15. A pressure sensor 17 is provided on the valve plate 16. The pressure sensor 17 is used to detect the pressure of the powder on it. When the amount of powder reaches a preset weight, the powder on the valve plate 16 is poured into the blanking box 15. When the amount of powder does not reach the preset weight, it can be determined whether there is a blockage problem at the sieve hole 321. The details are as follows:

[0053] See also Figure 3 、 Figure 7 as well as Figures 8-10 , the inner end wall of the blanking box 15 near the upper end is rotatably connected to the valve plate 16, and a pressure sensor 17 is installed on the valve plate 16. A driving box 2 18 is fixedly embedded on one side of the top of the blanking box 15. A rotating shaft 19 is rotatably installed inside the driving box 2 18 and is fixedly connected to the end of the valve plate 16. A driving motor 3 20 is fixedly installed on the outer end of the driving box 2 18 to drive the rotating shaft 19. The valve plate 16 is an arc-shaped structure with both ends concave toward the middle. A blanking space is reserved between the upper end of the valve plate 16 and the top of the blanking box 15, and the powder falling from the sieve hole 321 The powder falls onto the valve plate 16 and is pushed onto the pressure sensor 17. The pressure sensor 17 is used to detect the pressure exerted by the powder on it. When the amount of powder reaches a preset weight, the drive motor 3 20 is started. The drive motor 3 20 drives the rotating shaft 19 to flip the valve plate 16, and a sufficient amount of powder is poured into the blanking box 15. The pressure sensor 17 is additionally provided to detect the amount of powder falling onto the valve plate 16 within a certain period of time. When the amount of powder detected within a certain period of time is too small, it can indicate to a certain extent that the sieve hole 321 is blocked.

[0054] Example 3.

[0055] Based on Example 2, this example uses 17 pairs of powder weights for real-time detection, and further optimizes the detection process and the control operations after the detection evaluation, as follows:

[0056] The pressure sensor 17 is externally connected to an industrial control system, which includes a central processing module and a risk assessment module. The pressure sensor 17 is provided with an information acquisition module. The information acquisition module collects the pressure of the dust falling on the upper end surface of the valve plate 16 within a specified time threshold to obtain a pressure information value, assigns a time threshold range between T1 and T2, and assigns pressure information values ​​S1 and S2 generated by the powder within the time threshold. S2 indicates that the powder reaches the maximum dumping amount within the time T1-T2, and S1 indicates that the powder reaches the minimum dumping amount within the time T1-T2. The information acquisition module transmits the pressure information value to the risk assessment module, which analyzes and monitors the pressure information value, and uses the central processing module to coordinate and regulate the drive motor 3 20, the drive motor 2 51, the air pump 1 9, the air pump 2 12, and the drive motor 1 21;

[0057] The specific control steps are as follows:

[0058] See also Figures 8-10 Step 1: The pressure sensor 17 obtains the pressure information value caused by the powder falling on the valve plate 16. When the pressure information value detected by the pressure sensor 17 reaches S2 between T1 and T2, it means that the powder has reached the maximum dumping amount within the time T1-T2. The central processing module controls the drive motor 3 20 to start. The drive motor 3 20 drives the rotating shaft 19 and the valve plate 16 to tilt downward and flip, dumping the powder on the upper end surface of the valve plate 16 into the blanking box 15. The drive motor 3 20 is then used to flip, and the valve plate 16 returns to its initial state to continue to receive the powder.

[0059] Step 2: After the valve plate 16 returns to its initial state, the timing is restarted. When the pressure sensor 17 detects a pressure information value of S1-S2 at T2, it is marked as a level 2 risk warning. The central processing module controls the drive motor 1 21 to increase its rotation speed. At the same time, the central processing module controls the drive motor 3 20 to start, dumping the powder on the upper end surface of the valve plate 16 into the blanking box 15.

[0060] Step 3: After the valve plate 16 returns to the initial state, the timing is restarted. Under the premise of the second-level risk warning, the rotation speed of the drive motor 21 is increased. When the pressure sensor 17 detects that the pressure information value is less than or equal to S1 when T2 is reached, it is marked as a first-level risk warning. At this time, the drive motor 21 is turned off and the drive motor 2 51 is started. After the drive motor 2 51 is started, the arc sieve plate 32 and the winding roller 5 are driven to rotate synchronously. During the process of the arc sieve plate 32 tilting downward, the clearing component 7 at the bottom wall of the arc sieve plate 32 is moderately wound into the inside of the drive box 4. When the curved sieve plate 32 is flipped to a suitable angle, a clearing gap is formed between the curved sieve plate 32 and the bottom of the grinding roller 2. The air blowing port 722 on the clearing belt 72 is located just below the sieve hole 321. The blanking port 721 covers the part of the curved sieve plate 32 where no sieve hole 321 is formed. At this time, the air pump 1 9 cooperates with the air inlet box 8 to blow air toward the sieve hole 321 through the multiple air blowing ports 722, so that the powder blocked in the sieve hole 321 is flushed upward. At the same time, the air pump 2 12 cooperates with the collecting box 10 to suck the powder flushed upward into the collecting box 10 to prevent the powder from flying.

[0061] Step 4: After the powder blockage is cleared, turn off air pump 1 9 and air pump 2 12, and then reverse the drive motor 2 51. The arc sieve plate 32 returns to its initial state. Under the elastic action of the elastic belt 71, the elastic belt 71 and the blockage clearing belt 72 also return to their initial states. The grinding roller 2 returns to its initial rotation speed, and the dust collected inside the collecting box 10 falls through the suction channel 11. After the grinding operation after the blockage is cleared, the powder on the valve plate 16 is dumped, and the timing is restarted. Subsequent continuous grinding operations are performed in this way.

[0062] By adding a valve plate 16 with a pressure sensor 17 installed at the upper end of the blanking box 15, connecting the pressure sensor 17 to the industrial control system, and using the pressure sensor 17 to collect the pressure of the dust falling on the upper end surface of the valve plate 16 within a specified time threshold, the pressure information value is obtained, and the pressure information value is evaluated by the risk assessment unit in the industrial control system to more accurately determine whether blockage occurs at the sieve hole 321. When the assessment information reaches the second-level risk warning or the first-level risk warning, the central control module in the industrial control system makes reasonable adjustments in real time and performs effective clearing to avoid affecting the discharge efficiency due to untimely clearing operations, thereby further improving the grinding efficiency of the grinding device.

[0063] In combination with Example 1, Example 2 and Example 3:

[0064] Based on the grinding device, the grinding process includes the following operation procedures:

[0065] S1. The paint ingredients to be processed are introduced through one side of the upper end of the arc-shaped sieve plate 32, and the paint ingredients are introduced between the grinding roller 2 and the arc-shaped sieve plate 32. The grinding roller 2 grinds the paint ingredients during the rotation process, and the ground powder is discharged downward through the sieve hole 321 and is received by the valve plate 16 at the upper end of the blanking box 15;

[0066] S2, by adding a pressure sensor 17 for detecting the powder pressure on the upper end surface of the valve plate 16, when the pressure information value detected by the pressure sensor 17 reaches S2 between time T1 and T2, the valve plate 16 is driven to tilt downward and flip, and the powder on the upper end of the valve plate 16 is dumped into the blanking box 15;

[0067] S3, during the re-timing process, when the time reaches T2 and the pressure sensor 17 detects that the pressure information value is between S1 and S2, the rotation speed of the grinding roller 2 is increased to improve the powder discharge efficiency. When the time reaches T2, the valve plate 16 is driven to tilt downward and dump the powder on the upper end of the valve plate 16 into the blanking box 15;

[0068] S4. During the grinding process of increasing the rotation speed of the grinding roller 2, during the retiming process, when the time reaches T2, the pressure information value detected by the pressure sensor 17 is less than or equal to S1, indicating that the sieve hole 321 is in a blocked state during the grinding process. At this time, the grinding roller 2 is closed, the grinding operation is stopped, and the arc-shaped sieve plate 32 is tilted downward. During the rotation of the arc-shaped sieve plate 32, the clearing belt 72 at its bottom end is appropriately wound by the winding roller 5. By using the cooperation of the air pump 1 9 and the air inlet box 8, the gas is blown from the blowing port 722 to the sieve hole 321 by blowing upward to complete the clearing operation. During the clearing process, the powder blown upward is adsorbed and collected by using the cooperation of the air pump 2 12 and the collection box 10 to prevent the powder from flying.

[0069] S5. After the clearing work is completed, the arc-shaped screen plate 32 and the clearing assembly 7 return to their initial state, and the grinding operation is continued at the initial speed of the grinding roller 2.

[0070] The above are only preferred specific implementation methods of the present invention; however, the protection scope of the present invention is not limited thereto; any technician familiar with the technical field within the technical scope disclosed by the present invention; any equivalent replacement or change based on the technical solution and improved conception of the present invention shall be covered within the protection scope of the present invention.

Claims

1. A grinding device for processing insulating powder coatings, comprising a grinding box (1), a grinding roller (2) being rotatably mounted inside the top end of the grinding box (1), and a driving motor (21) for driving the grinding roller (2) being fixedly mounted on the outer end wall of the grinding box (1), characterized in that: A driving box (4) located on one side of the upper end of the grinding roller (2) is fixedly installed inside the grinding box (1), and a grinding plate (3) sleeved on the lower end wall of the grinding roller (2) is provided inside the driving box (4). The grinding plate (3) includes a connecting plate (31) fixedly passing through the driving box (4), the upper end of the connecting plate (31) is fixedly connected to the inner wall of the grinding box (1), and the lower end of the connecting plate (31) is rotatably connected to an arc-shaped screen plate (32), and the lower end of the arc-shaped screen plate (32) passes through the driving box (4) and sleeved on the bottom end wall of the grinding roller (2); The upper end of the arc sieve plate (32) passes around the grinding roller (2) and is fixed to the inner wall of the other side of the grinding box (1) through an elastic material guide component. The arc sieve plate (32) fits the bottom end of the grinding roller (2) and a plurality of sieve holes (321) are provided on the corresponding end wall. The front and rear ends of the arc sieve plate (32) and the connecting plate (31) are rotatably connected to the drive box (4) relative to the inner wall through a rotating shaft. A winding roller (5) is also rotatably installed inside the drive box (4). A driving motor (51) for driving the winding roller (5) is fixedly connected to the rear end wall of the drive box (4). The other end of the winding roller (5) is fixedly connected to a rotating shaft (2) that passes through the outer side of the drive box (4). The rotating shaft (1) in the same direction also passes through the outer end of the drive box (4) and is connected to the rotating shaft (2) through a transmission belt (6). An air inlet box (8) is fixedly connected to the lower side wall of the arc-shaped screen plate (32) near the upper end. A clearing assembly (7) sleeved on the bottom end surface of the grinding plate (3) is connected between the air inlet box (8) and the winding roller (5). The clearing assembly (7) includes an elastic belt (71) connected to the inside of the air inlet box (8). The lower end of the elastic belt (71) is fixedly connected to a clearing belt (72). The other end of the clearing belt (72) passes through the bottom end of the drive box (4) and is wound on the winding roller (5). A clearing belt (72) connected to the end of the air inlet box (8) is fixedly installed on the outer side wall of the grinding box (1). An air pump (9) is provided, a blanking port (721) is provided on the end wall of the clearing belt (72) below the sieve hole (321), and a plurality of blowing ports (722) are embedded on the inner end wall of the clearing belt (72) above the blanking port (721) and close to the elastic belt (71) and connected to the interior thereof, a blanking box (15) is placed at the bottom of the grinding box (1) below the grinding roller (2), a valve plate (16) is rotatably connected to the inner end wall of the blanking box (15) near the upper end, and a pressure sensor (17) is installed on the valve plate (16); The elastic band (71) is made of elastic material and has a hollow bag-like structure. The clearing band (72) is located above the blanking port (721) and has a circulation groove in communication with the elastic band (71). A plurality of air blowing ports (722) are in communication with the circulation groove.

2. The grinding device for insulating powder coating processing according to claim 1, characterized in that: The elastic material guide assembly includes an arc-shaped material guide piece (13) fixedly connected to the inner side of the upper end of the arc-shaped screen plate (32), and the upper end of the arc-shaped material guide piece (13) is fixedly connected to an elastic traction belt (14) connected to the inner wall of the top end of the grinding box (1).

3. The grinding device for insulating powder coating processing according to claim 2, characterized in that: The arc-shaped sieve plate (32) is fitted with the bottom end of the grinding roller (2), and a corresponding lower end wall is provided with a blast groove connected to the blanking port (721), and the blast groove is connected to the plurality of sieve holes (321).

4. The grinding device for insulating powder coating processing according to claim 3, characterized in that: A collecting box (10) located inside the first arc-shaped guide piece (13) is fixedly mounted on the inner wall of the upper end of the arc-shaped sieve plate (32), and an air pump (12) connected to the interior of the collecting box (10) is fixedly mounted on the collecting box (10). A suction channel (11) extending through the bottom of the first arc-shaped guide piece (13) is fixedly connected to the bottom end of the collecting box (10), and the suction channel (11) is fitted with the inner wall of the arc-shaped sieve plate (32).

5. The grinding device for processing insulating powder coating according to claim 4, characterized in that: The top wall of the grinding box (1) is fixedly connected to an arc-shaped guide piece 2 located above the grinding roller (2) on the side close to the arc-shaped guide piece 1 (13), and a feeding cavity is reserved between the arc-shaped guide piece 2 and the arc-shaped guide piece 1 (13).

6. The grinding device for processing insulating powder coating according to claim 5, characterized in that: The width of the blanking box (15) is greater than the width of the blanking opening (721), and the length of the blanking box (15) is less than the length of the grinding roller (2). The front and rear end walls of the grinding box (1) are fixedly connected to inclined guide plates located above the front and rear end of the blanking box (15).

7. The grinding device for processing insulating powder coating according to claim 6, characterized in that: A driving box 2 (18) is fixedly embedded on one side of the top of the blanking box (15), and a rotating shaft (19) fixedly connected to the end of the valve plate (16) is rotatably installed inside the driving box 2 (18), and a driving motor 3 (20) for driving the rotating shaft (19) is fixedly installed on the outer end of the driving box 2 (18).

8. The grinding device for insulating powder coating processing according to claim 7, characterized in that: The pressure sensor (17) is externally connected to an industrial control system, which includes a central processing module and a risk assessment module. The pressure sensor (17) collects the pressure of the dust falling on the upper end surface of the valve plate (16) within a specified time threshold range to obtain a pressure information value, assigns a time threshold range between T1 and T2, and assigns pressure information values ​​S1 and S2 generated by the powder within the time threshold range. S2 indicates that the powder reaches the maximum dumping amount within T1-T2, and S1 indicates that the powder reaches the minimum dumping amount within T1-T2. The pressure sensor transmits the pressure information value to the risk assessment module, which analyzes and monitors the pressure information value, and uses the central processing module to coordinate and control the drive motor three (20), the drive motor two (51), the air pump one (9), the air pump two (12), and the drive motor one (21); The specific control steps are as follows: Step 1: The pressure sensor (17) obtains the pressure information value caused by the powder falling on the valve plate (16). When the pressure information value detected by the pressure sensor (17) reaches S2 between T1 and T2, it means that the powder reaches the maximum pouring amount within T1 and T2. The central processing module controls the drive motor 3 (20) to start. The drive motor 3 (20) drives the rotating shaft (19) and the valve plate (16) to tilt downward and flip, and the powder on the upper end surface of the valve plate (16) is poured into the blanking box (15). The drive motor 3 (20) is then used to flip, and the valve plate (16) returns to the initial state to continue to be used for receiving powder. Step 2: After the valve plate (16) returns to the initial state, the timing is restarted. When the pressure sensor (17) detects that the pressure information value is S1-S2 at T2, it is marked as a second-level risk warning, and the central processing module controls the driving motor 1 (21) to increase its rotation speed. At the same time, the central processing module controls the driving motor 3 (20) to start, and the powder on the upper end surface of the valve plate (16) is dumped into the blanking box (15); Step 3: After the valve plate (16) returns to the initial state, the timing is restarted. Under the premise of the second-level risk warning, the rotation speed of the drive motor (21) is increased. When the pressure sensor (17) detects that the pressure information value is less than or equal to S1 when T2 is reached, it is marked as a first-level risk warning. At this time, the drive motor (21) is turned off and the drive motor (51) is started to drive the curved screen plate (32) and the winding roller (5) to rotate synchronously. When the curved screen plate (32) is flipped to the appropriate angle, the curved screen plate A clearing gap is formed between the (32) and the bottom of the grinding roller (2), and the air blowing port (722) on the clearing belt (72) is located just below the sieve hole (321). At this time, the air pump (9) cooperates with the air inlet box (8) to blow air toward the sieve hole (321) through the multiple air blowing ports (722), so that the powder blocked in the sieve hole (321) is flushed upward. At the same time, the air pump (12) cooperates with the collecting box (10) to suck the powder flushed upward into the collecting box (10) to prevent the powder from flying. Step 4: After the powder blockage is cleared, turn off air pump 1 (9) and air pump 2 (12), and then reverse the rotation of drive motor 2 (51). The arc sieve plate (32) returns to its initial state. Under the elastic action of the elastic belt (71), the elastic belt (71) and the blockage clearing belt (72) also return to their initial state. The grinding roller (2) returns to its initial rotation speed. The dust collected in the collection box (10) falls through the suction channel (11). After the grinding operation after the blockage is cleared, the powder on the valve plate (16) is dumped and the timing is restarted. The subsequent grinding operation is carried out in this way.

9. A grinding process for processing insulating powder coatings, using the grinding device for processing insulating powder coatings according to claim 8, characterized in that: The following operating procedures are included: S1. The paint ingredients to be processed are introduced through one side of the upper end of the arc-shaped sieve plate (32), and the paint ingredients are introduced between the grinding roller (2) and the arc-shaped sieve plate (32). The grinding roller (2) grinds the paint ingredients during the rotation process. The ground powder is discharged downward through the sieve hole (321) and is received by the valve plate (16) at the upper end of the blanking box (15); S2, by adding a pressure sensor (17) for detecting the powder pressure on the upper end surface of the valve plate (16), when the pressure sensor (17) detects that the pressure information value reaches S2 between time T1 and T2, the valve plate (16) is driven to tilt downward and flip, and the powder on the upper end of the valve plate (16) is dumped into the blanking box (15); S3, during the re-timing process, when the time reaches T2 and the pressure sensor (17) detects that the pressure information value is between S1 and S2, the rotation speed of the grinding roller (2) is increased to improve the powder discharge efficiency, and when the time reaches T2, the valve plate (16) is driven to tilt downward and flip, and the powder on the upper end of the valve plate (16) is dumped into the blanking box (15); S4, during the grinding process of increasing the rotation speed of the grinding roller (2), during the re-timing process, when the time reaches T2, the pressure information value detected by the pressure sensor (17) is less than or equal to S1, indicating that during this grinding process, the sieve hole (321) is in a blocked state. At this time, the grinding roller (2) is closed, the grinding operation is stopped, and the arc-shaped sieve plate (32) is tilted downward. During the rotation of the arc-shaped sieve plate (32), the clearing belt (72) at the bottom end thereof is appropriately reeled by the reeling roller (5). By using the cooperation of the air pump (9) and the air inlet box (8), the gas is blown from the blowing port (722) to the sieve hole (321) by blowing upward to complete the clearing operation. During the clearing process, the powder blown upward is adsorbed and collected by using the cooperation of the air pump (12) and the collection box (10) to prevent the powder from flying. S5. After the clearing work is completed, the curved screen plate (32) and the clearing assembly (7) are restored to their initial state, and the grinding operation is continued at the initial speed of the grinding roller (2).

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