Continuous grinding device for superfine glass fiber powder with impurity removal structure

Abstract

The application discloses a continuous grinding device with a foreign matter removing structure for superfine glass fiber powder processing, relates to the technical field of glass fiber powder processing, and is used for solving the problems of easy dust raising and uneven grinding of part of glass fiber powder in the glass fiber powder preparation process, and comprises a placing frame, a grinding box, a top box and a screening box. The application is characterized in that the rotation of the rotating disc drives the movable cover to move downwards, so that the grinding top block is in contact with the grinding bottom block, the rotation of the grinding top block completes the rapid grinding of the glass fiber powder, the problem of dust raising in the grinding or feeding process of the glass fiber powder is avoided, the second electric push rod in the movable cover pushes the limiting block to contact the limiting rod, the movement of the grinding bottom plate is completed while the limiting rod is vibrated, the glass fiber powder discharged from the top of the grinding bottom plate after the grinding is facilitated, new glass fiber powder starts to be fed, the grinding top block seals the top of the grinding box, and the raised glass fiber powder is prevented from entering the air.

Description

Technical Field

[0001] This invention relates to the field of glass fiber powder processing technology, specifically to a continuous grinding device for processing ultrafine glass fiber powder with a purification structure. Background Technology

[0002] Glass fiber powder is made by cutting, grinding and sieving specially drawn continuous glass fiber filaments. It is widely used as a filler and reinforcing material in various thermosetting and thermoplastic resins. Glass fiber powder is used as a filler to improve the hardness and compressive strength of products, and reduce product shrinkage, scratch width, wear and production costs.

[0003] After the glass fiber filaments are chopped, they need to be ground and sieved to obtain ultrafine glass fiber powder. However, since the glass fiber powder needs to be continuously fed and unfed during the grinding process, some glass fiber powder or filaments will enter the air around the equipment. This is difficult to handle and long-term inhalation will harm the health of workers. At the same time, glass fiber powder grinding equipment is required to be able to automatically clean the powder adhering to the grinding equipment to ensure the uniformity of the overall glass fiber powder preparation.

[0004] Therefore, we propose a continuous grinding device with a purification structure for processing ultrafine glass fiber powder. Summary of the Invention

[0005] The purpose of this invention is to provide a continuous grinding device for processing ultrafine glass fiber powder with a purification structure, so as to solve the problems mentioned in the background art, such as dust rising and uneven grinding of some glass fiber powder.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A continuous grinding device for processing ultrafine glass fiber powder with a purification structure includes a placement frame, a grinding box, a top box, and a screening box. The grinding box is installed inside the placement frame, and the top box is installed on the top of the placement frame. The screening box is fixed to the top of the top box by bolts. Movable covers are slidably connected to the inner walls on both sides of the placement frame. The bottom of the movable covers is movably connected to a grinding top block through bearings. A cross scraper is slidably connected inside the grinding top block. A take-up and put-down mechanism is installed inside the grinding box.

[0008] The receiving and releasing mechanism includes a grinding base block, a limiting rod, and a blocking block. The grinding base block is slidably connected inside the grinding box. A discharge port is opened on the grinding base block. A blocking block is slidably connected to the bottom of the grinding base block and inside the discharge port. The limiting rod is symmetrically fixed to the bottom of the grinding base block by bolts. One end of the limiting rod passes through the grinding box and is slidably connected to the grinding box. A second spring is sleeved and connected to the limiting rod on the inner wall of the top of the grinding box. A locking block is sleeved and fixed to the limiting rod on one side of the top of the grinding box. The inner wall of the grinding box has symmetrically opened outlets.

[0009] Furthermore, a feed inlet is provided on one side of the screening box, and a slag storage shell is installed at the bottom of the feed inlet. The inner walls on both sides of the screening box are fixed with first screen plates by bolts. A discharge outlet is provided at the bottom of the screening box, and the bottom of the discharge outlet is connected to the top box. A vibrator is fixed on one side of the screening box by bolts.

[0010] Furthermore, a first electric push rod is fixed to the bottom inner wall of the top box by bolts, a transfer cylinder is slidably connected to the bottom inner wall of the top box, a discharge port is opened on the bottom inner wall of the top box, and a flow channel is connected to the bottom of the discharge port. One side of the flow channel is connected to one side of the discharge port, and one end of the first electric push rod is connected to the transfer cylinder by bolts.

[0011] Furthermore, the top of the movable cover is symmetrically slidably connected to a limiting block, and the top of the movable cover is symmetrically fixed with a second electric push rod by bolts, with one end of the second electric push rod correspondingly connected to the limiting block. The bottom of the top box is movably connected to a turntable by a bearing, and a ball column is movably connected to the bottom of the turntable, with one end of the ball column movably connected to the top of the movable cover.

[0012] Furthermore, one end of the cross scraper is fixedly connected to a top column, and one end of the top column passes through the grinding top block and is fixed to a square block by spot welding. The top column is fitted with a first spring inside the grinding top block. A rotating shell is installed on one side of the placement frame and on the top of the square block, and a telescopic opening is slidably connected inside the rotating shell.

[0013] Furthermore, a vibrating plate is slidably connected inside the grinding box and at the bottom of the limiting rod. A protrusion is fixed to one side of the top of the vibrating plate by spot welding. A second screen plate is fixed to the bottom of the vibrating plate by bolts. Collision balls are evenly placed on the top of the second screen plate. Third springs are symmetrically installed on both sides of the bottom of the vibrating plate. A discharge port is opened on one side of the grinding box, and the side of the discharge port is connected to the bottom of the vibrating plate.

[0014] The method of using the continuous grinding device for processing ultrafine glass fiber powder with a purification structure is as follows:

[0015] Quantitative feeding ensures product uniformity: Glass fiber powder is poured into the screening box from the feed inlet. The vibrator on the screening box is started. After being screened by the vibration, the glass fiber powder falls to the discharge outlet. The first electric push rod in the top box drives the transfer cylinder to move left and right. The transfer cylinder completes the material receiving at the discharge outlet and then starts discharging at the drop outlet, discharging the glass fiber powder into the flow channel. Finally, the glass fiber powder falls into the top of the grinding block along the flow channel.

[0016] Sealed grinding ensures a clean environment: The turntable at the bottom of the top box drives the ball column to rotate and pushes the movable cover with the grinding top block downward. The limit rods symmetrically set at the top of the grinding box are locked into the movable cover. At this time, the second electric push rod inside the movable cover pushes the limit block to contact the locking block on the limit rod, thus stabilizing the limit rod. At this time, the motor inside the movable cover drives the grinding top block to rotate, grinding the glass fiber powder mixed between the grinding top block and the grinding bottom block.

[0017] Vibration during feeding ensures product dispersion: After the glass fiber powder grinding is completed, the second electric push rod continues to push the limit block to one side. The limit block presses down the limit rod, which in turn causes the grinding base block to descend. This causes the block in the middle of the grinding base block to contact the top protrusion of the vibrating plate. The block moves upward, causing the ground glass fiber powder to fall onto the vibrating plate. After being impacted by the collision ball on the vibrating plate, the ground glass fiber powder is successfully discharged from the discharge port on one side of the grinding box. After the ground glass fiber powder is discharged, the glass fiber powder that falls again in the flow channel enters the grinding base block from the outlet to start the grinding operation of a new batch of glass fiber powder.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] 1. In this invention, the rotating turntable drives the movable cover to move downward, so that the grinding top block contacts the grinding bottom block. At the same time, the rotation of the grinding top block completes the rapid grinding operation of glass fiber powder, while avoiding the problem of glass fiber powder being thrown up during grinding or feeding. The second electric push rod located inside the movable cover pushes the limiting block to contact the limiting rod, so that the limiting rod vibrates and the grinding bottom plate moves at the same time. This facilitates the discharge of glass fiber powder that has finished grinding at the top of the grinding bottom plate, while new glass fiber powder begins to be fed. The grinding top block seals the top of the grinding box, and the glass fiber powder is automatically fed in the grinding structure, preventing the thrown glass fiber powder from entering the air, making the glass fiber powder grinding operation safer.

[0020] 2. In this invention, the first electric push rod drives the transfer cylinder to move at the bottom of the screening box. With the operation of the vibrator, the glass fiber in the screening box is quantitatively moved to the flow channel at the bottom of the top box through the transfer cylinder. The glass fiber powder in equal batches is put into the grinding mechanism for grinding, which ensures the integrity and uniformity of the glass fiber powder after grinding.

[0021] 3. In this invention, the vibrator works in conjunction with the first sieve plate to complete the primary screening of the glass fiber powder, removing impurities from the glass fiber powder. At the same time, the ground glass fiber powder falls to the top of the second sieve plate on the vibrating plate. The limiting rod drives the vibrating plate to vibrate, completing the crushing process of the agglomerated glass fiber powder after grinding, ensuring that the glass fiber powder discharged from the discharge port is more uniform. A cross scraper is also installed at the bottom of the entire grinding top block. The rotation operation of the cross scraper when the movable cover moves removes the glass fiber powder adhering to the surface of the grinding top block, ensuring that the glass fiber powder ground by the grinding top block is more uniform. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of the continuous grinding device for processing ultrafine glass fiber powder with a purification structure according to the present invention.

[0023] Figure 2 This is a schematic front cross-sectional view of the continuous grinding device for processing ultrafine glass fiber powder with a purification structure according to the present invention.

[0024] Figure 3 This is a side view of the cross-sectional structure of the screening box of the present invention;

[0025] Figure 4 This is a schematic diagram of the cross-shaped scraper connecting to the top column structure of the present invention;

[0026] Figure 5 This is a schematic diagram of the overall structure of the launching and retracting mechanism of the present invention;

[0027] Figure 6 This is a schematic diagram of the second electric push rod connecting limit block structure of the present invention;

[0028] Figure 7 This is a schematic diagram of the connection structure between the block and the rotating shell of the present invention.

[0029] In the diagram: 1. Placement rack; 2. Grinding box; 3. Top box; 4. Screening box; 5. Feed inlet; 6. First screen plate; 7. Discharge outlet; 8. Slag storage shell; 9. Vibrator; 10. First electric push rod; 11. Discharge port; 12. Transfer cylinder; 13. Flow channel; 14. Turntable; 15. Ball column; 16. Rotating shell; 17. Telescopic port; 18. Movable cover; 19. Limiting block; 20. Grinding top block; 21. Ten 21. Scraper bar; 22. First spring; 23. Top column; 24. Square block; 25. Second electric push rod; 26. Retraction and release mechanism; 261. Grinding base block; 262. Discharge port; 263. Block; 264. Limiting rod; 265. Locking block; 266. Second spring; 27. Flow outlet; 28. Vibrating plate; 29. ​​Third spring; 30. Collision ball; 31. Protrusion; 32. Second screen plate; 33. Discharge port. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] Please see Figure 1-7 The present invention provides a technical solution:

[0032] Example 1:

[0033] Grinding glass fiber powder requires ensuring uniform grinding within the same batch of products, and also avoiding excessive glass fiber powder entering the operating environment during grinding. Figure 1 As shown, the entire continuous grinding device for processing ultrafine glass fiber powder with impurity removal structure consists of a placement frame 1, a grinding box 2, a top box 3, and a screening box 4. Among them, the grinding box 2 and the main movable cover 18 of the placement frame 1 are mainly responsible for the grinding of glass fiber powder.

[0034] In specific work, such as Figure 5 As shown, symmetrical inlets 27 are provided on one inner wall of the grinding chamber 2. The inlets 27 are connected to the flow channel 13 at the bottom of the top chamber 3, which is responsible for feeding the glass fiber powder in the screening box 4 onto the grinding base block 261. The entire grinding chamber 2 is equipped with a receiving mechanism 26. Under normal conditions, the grinding base block 261 is as follows: Figure 2 As shown, due to the action of the second spring 266 on the inner wall of the top of the grinding box 2, the grinding base block 261 blocks the outlet 27 on the inner wall of the grinding box 2, preventing the glass fiber powder from being fed normally. However, when the limiting block 19 inside the movable cover 18 presses down the limiting rod 264, the limiting rod 264 descends, causing the grinding base block 261 to descend relative to the grinding box 2. At this time, as... Figure 5 As shown, the glass fiber powder successfully enters the grinding base 261 from the outlet 27. However, when the grinding base 261 descends, the block 263 on the discharge port 262 will abut against the protrusion 31 on the vibrating plate 28. At this time, the block 263 cannot seal the discharge port 262 of the grinding base 261. Therefore, after the discharge from the outlet 27 is completed, the grinding base plate needs to rise quickly to prevent leakage.

[0035] For the grinding base 261 located in the grinding box 2, the lowering operation is achieved, such as Figure 6As shown, the top two sides of the entire movable cover 18 are symmetrically connected to limit blocks 19. The limit blocks 19 have special channels. When the bottom turntable 14 of the top box 3 starts to rotate, the ball column 15 presses down on the movable cover 18, causing one end of the limit rod 264 to enter the top side of the movable cover 18. At this time, the second electric push rod 25 pushes the limit block 19 to contact the top side of the limit rod 264. The top of the limit rod 264 enters the movable cover 18 with a locking block 265. After the locking block 265 enters the limit block 19 a certain distance, the limit block 19 fixes the limit rod 264, causing the connection of the limit rod 264 to be... The grinding base block 261 cannot move up and down normally within the grinding chamber 2. At this time, the descending grinding top block 20 contacts the grinding base block 261 containing glass fiber powder, and the motor drives the entire grinding top block 20 to rotate, completing the grinding operation of the glass fiber powder. Because the limiting rod 264 is locked, there will be no movement of the grinding base block 261 during the grinding process of the glass fiber powder, improving the grinding effect of the glass fiber powder. After the grinding of the glass fiber powder between the grinding base block 261 and the grinding top block 20 is completed, the material discharge operation begins. At this time, the second electric push rod 25 continues to push the limiting block 19 to one side, through... Figure 6 It can be understood that as the end of the limiting rod 264 continues to move to one side, it will contact the inner inclined surface of the limiting block 19. The inner inclined surface of the limiting block 19 has texture, which causes the limiting rod 264 to vibrate as it is pressed down by the limiting block 19. The entire grinding base block 261 begins to move downward under the push of the limiting rod 264. The block 263 located in the feed port 262 abuts against the protrusion 31 on the vibrating plate 28. The block 263 is pushed upward by the protrusion 31, which opens the feed port 262 of the grinding base block 261. As the grinding base block 261 continues to move downward, the limiting rod 264 will also contact both sides of the vibrating plate 28. At this time, the limiting rod 264 moves within the limiting block 19. The vibrations generated and the inclined surface on the limiting base plate will accelerate the feeding of glass fiber powder. At the same time, the glass fiber powder falling from the feeding port 262 onto the vibrating plate 28 needs to be screened. The feeding and feeding operations are repeated continuously on the entire grinding base 261. The grinding top block 20 located on the top of the grinding base 261 does not need to move up and down repeatedly, but can be kept in a pressed state. Therefore, by sealing the top of the grinding box 2 with the grinding top block 20, the entire glass fiber powder is ground in a closed manner, which prevents glass fiber dust from entering the air. At the same time, the grinding top block 20 can be lifted out of the grinding box 2 by rotating the turntable 14, which facilitates the cleaning of the grinding base 261 later.

[0036] Example 2:

[0037] Because the grinding top block 20 remains in a downward state during the grinding process, over long-term operation, some glass fiber powder may adhere to the surface. Therefore, as follows... Figure 4As shown, a movable cross-shaped scraper 21 is installed at the bottom of the entire grinding top block 20. A top post 23 connected to the top of the cross-shaped scraper 21 passes through the grinding top block 20 and is fixed to a square block 24 by spot welding. Figure 2 and Figure 7 It is known that a rotating shell 16 is installed on the placement rack 1, and a sliding telescopic opening 17 is installed at the bottom of the rotating shell 16. When it is necessary to clean the glass fiber powder adhering to the surface of the grinding top block 20, the rotating turntable 14 drives the movable cover 18 to rise. During the rise of the movable cover 18, one end of the top column 23 contacts the telescopic opening 17 at the bottom of the rotating shell 16. Since the cross scraper 21 is engaged in the grinding top block 20 by the abutment of the first spring 22, when the block 24 contacts the telescopic opening 17, the cross scraper 21 will be squeezed vertically from the bottom of the grinding top block 20. After extrusion, the cross scraper 21 will be rotated by the rotating shell 16 and the cube 24 will rotate. The rotation angle of the cross scraper 21 is adjusted by the rotating shell 16. During the rotation, the cross scraper 21 will scrape off the glass fiber powder adhering to the bottom of the grinding top block 20 to avoid affecting the subsequent grinding operation of the glass fiber powder. Since the rotation angle of the cross scraper 21 is fixed, after rotating for a period of time, the movable cover 18 will descend again. At this time, the top column 23, which is not limited by the rotating shell 16, will push the cross scraper 21 into the grinding top block 20 under the push of the first spring 22.

[0038] To prevent the ground glass fiber powder from clumping, the ground glass fiber powder falling from the feed port 262 falls onto the second sieve plate 32 on the vibrating plate 28. The second sieve plate 32 is equipped with collision balls 30. After the ground glass fiber powder falls onto the second sieve plate 32, the vibration generated by the fiber powder will act on the vibrating plate 28. The bottom of the vibrating plate 28 is symmetrically equipped with third springs 29. The collision balls 30 contact and break up some of the clumped glass fiber powder on the second sieve plate 32, and then pass through the filtration of the second sieve plate 32 to the discharge port 33, completing the feeding operation of the ground glass fiber powder. Through the secondary filtration of the second sieve plate 32, the ground glass fiber powder becomes more delicate and uniform.

[0039] Example 3:

[0040] To ensure the uniformity of grinding within the same batch of glass fiber powder, such as Figure 3 As shown, a quantitative feeding mechanism is set at the bottom of the entire screening box 4 and inside the top box 3. The glass fiber powder entering from the feed inlet 5 will first be intercepted by the first screen plate 6. A vibrator 9 is installed on the back of the screening box 4. The vibrator 9 drives the first screen plate 6 to vibrate, thereby realizing the filtration of the entire glass fiber powder. The impurities in the glass fiber powder are intercepted by the first screen plate 6 and fall into the slag shell 8 on one side of the screening box 4. The staff can disassemble and clean the slag shell 8 later.

[0041] A discharge port 7 is located at the bottom of the screening box 4, but a sliding transfer cylinder 12 is installed at the bottom of the discharge port 7. The transfer cylinder 12 is located inside the top box 3. Similarly, a first electric push rod 10 is installed inside the top box 3. One end of the first electric push rod 10 is connected to the transfer cylinder 12. The first electric push rod 10 drives the transfer cylinder 12 to move inside the top box 3. When quantitative discharge is required, the first electric push rod 10 pushes the transfer cylinder 12 to contact the discharge port 7, so that the glass fiber powder in the screening box 4 falls into the transfer cylinder 12. At this time, the first electric push rod 10 pulls back the transfer cylinder 12, so that the bottom of the transfer cylinder 12 contacts the discharge port 11 on the bottom inner wall of the top box 3. The glass fiber powder in the transfer cylinder enters the flow channel 13 from the discharge port 11, and finally enters the grinding box 2 along the flow port 27, completing the quantitative feeding operation of glass fiber powder.

[0042] Working principle of the invention:

[0043] Glass fiber powder is poured into screening box 4 from feed inlet 5. Vibrator 9 on screening box 4 is started. After vibrating and screening, glass fiber powder falls to discharge outlet 7. The first electric push rod 10 in top box 3 drives transfer cylinder to move left and right. Transfer cylinder completes material receiving at discharge outlet 7, and then starts material discharge at drop outlet 11, discharging glass fiber powder into flow channel 13. Finally, glass fiber powder falls into the top of grinding block 261 along flow channel 13.

[0044] The turntable 14 at the bottom of the top box 3 drives the ball column 15 to rotate and pushes the movable cover 18 with the grinding top block 20 downward. The limiting rods 264 symmetrically arranged at the top of the grinding box 2 are inserted into the movable cover 18. At this time, the second electric push rod 25 inside the movable cover 18 pushes the limiting block 19 to contact the locking block 265 on the limiting rod 264, thus stabilizing the limiting rod 264. At this time, the motor inside the movable cover 18 drives the grinding top block 20 to rotate and grind the glass fiber powder sandwiched between the grinding top block 20 and the grinding bottom block 261.

[0045] After the glass fiber powder grinding is completed, the second electric push rod 25 continues to push the limit block 19 to one side. The limit block 19 presses down the limit rod 264, and the limit rod 264 drives the grinding base block 261 to descend. This causes the block 263 in the middle of the grinding base block 261 to contact the top protrusion 31 of the vibrating plate 28. The block 263 moves upward, causing the ground glass fiber powder to fall onto the vibrating plate 28. After being impacted by the collision ball 30 on the vibrating plate 28, the ground glass fiber powder is successfully discharged from the discharge port 33 on one side of the grinding box 2. After the ground glass fiber powder is discharged, the glass fiber powder that falls again in the flow channel 13 enters the grinding base block 261 from the outlet 27 to start the grinding operation of a new batch of glass fiber powder.

[0046] The above description is merely an example and illustration of the structure of the present invention. Those skilled in the art can make various modifications or additions to the specific embodiments described, or use similar methods to replace them, as long as they do not deviate from the structure of the invention or exceed the scope defined in the claims, all of which should fall within the protection scope of the present invention.

[0047] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0048] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to any specific implementation. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A continuous grinding device for processing ultrafine glass fiber powder with a purification structure, comprising a placement frame (1), a grinding box (2), a top box (3), and a screening box (4), wherein the grinding box (2) is installed inside the placement frame (1), the top box (3) is installed on the top of the placement frame (1), and the screening box (4) is fixed to the top of the top box (3) by bolts, characterized in that, The inner walls of both sides of the placement rack (1) are slidably connected to movable covers (18), and the bottom of the movable covers (18) is slidably connected to a grinding top block (20) via a bearing. A cross scraper (21) is slidably connected inside the grinding top block (20), and a take-up and put-down mechanism (26) is installed inside the grinding box (2). The receiving and releasing mechanism (26) includes a grinding base block (261), a limiting rod (264), and a blocking block (263). The grinding base block (261) is slidably connected inside the grinding box (2). A discharge port (262) is opened on the grinding base block (261). A blocking block (263) is slidably connected to the bottom of the grinding base block (261) and inside the discharge port (262). The limiting rod (264) is symmetrically fixed to the bottom of the grinding base block (261) by bolts. One end of the limiting rod (264) passes through the grinding box (2) and is slidably connected to the grinding box (2). A second spring (266) is sleeved and connected to the inner wall of the top of the limiting rod (264). A locking block (265) is sleeved and fixed to one side of the top of the limiting rod (264). A flow port (27) is symmetrically opened on the inner wall of the grinding box (2). The top of the movable cover (18) is symmetrically slidably connected to a limiting block (19), and the top of the movable cover (18) is symmetrically fixed with a second electric push rod (25) by bolts, and one end of the second electric push rod (25) is correspondingly connected to the limiting block (19). The movable cover (18) is pressed down, causing one end of the limiting rod (264) to enter the top side of the movable cover (18). The second electric push rod (25) pushes the limiting block (19) to contact the top side of the limiting rod (264). After the locking block (265) enters the limiting block (19) a certain distance, the limiting block (19) fixes the limiting rod (264). When the second electric push rod (25) continues to push the limiting block (19) to one side, the end of the limiting rod (264) contacts the inner inclined surface of the limiting block (19). The inner inclined surface of the limiting block (19) has texture, which causes the limiting rod (264) to vibrate while descending. Under normal conditions, the grinding base block (261) is blocked by the second spring (266) to block the outlet (27). When the limiting block (19) presses down the limiting rod (264) to drive the grinding base block (261) to descend, the glass fiber powder enters the grinding base block (261) from the outlet (27). The grinding top block (20) seals the top of the grinding box (2) to achieve a closed grinding operation.

2. The continuous grinding apparatus for processing ultrafine glass fiber powder with a purification structure according to claim 1, characterized in that, The screening box (4) has a feed inlet (5) on one side and a slag storage shell (8) installed at the bottom of the feed inlet (5). The inner walls of both sides of the screening box (4) are fixed with first screen plates (6) by bolts. The bottom of the screening box (4) has a discharge port (7) and the bottom of the discharge port (7) is connected to the top box (3). A vibrator (9) is fixed to one side of the screening box (4) by bolts.

3. The continuous grinding apparatus for processing ultrafine glass fiber powder with a purification structure according to claim 2, characterized in that, The bottom inner wall of the top box (3) is fixed with a first electric push rod (10) by bolts. The bottom inner wall of the top box (3) is slidably connected with a transfer cylinder (12). The bottom inner wall of the top box (3) is provided with a discharge port (11), and a flow channel (13) is connected to the bottom of the discharge port (11). One side of the flow channel (13) is connected to one side of the flow port (27). One end of the first electric push rod (10) is connected to the transfer cylinder (12) by bolts.

4. The continuous grinding apparatus for processing ultrafine glass fiber powder with a purification structure according to claim 3, characterized in that, The bottom of the top box (3) is movably connected to a turntable (14) via a bearing, and a ball column (15) is movably connected to the bottom of the turntable (14). One end of the ball column (15) is movably connected to the top of the movable cover (18).

5. The continuous grinding apparatus for processing ultrafine glass fiber powder with a purification structure according to claim 4, characterized in that, One end of the cross scraper (21) is fixedly connected to a top post (23), and one end of the top post (23) passes through the grinding top block (20) and is fixed to a block (24) by spot welding. The top post (23) is fitted with a first spring (22) inside the grinding top block (20). A rotating shell (16) is installed on one side of the placement frame (1) and on the top of the block (24), and a telescopic port (17) is slidably connected inside the rotating shell (16).

6. The continuous grinding apparatus for processing ultrafine glass fiber powder with a purification structure according to claim 5, characterized in that, A vibrating plate (28) is slidably connected inside the grinding box (2) and at the bottom of the limiting rod (264). A protrusion (31) is fixed to one side of the top of the vibrating plate (28) by spot welding. A second screen plate (32) is fixed to the bottom of the vibrating plate (28) by bolts. Collision balls (30) are evenly placed on the top of the second screen plate (32). A third spring (29) is symmetrically installed on both sides of the bottom of the vibrating plate (28). A discharge port (33) is opened on one side of the grinding box (2), and the side of the discharge port (33) is connected to the bottom of the vibrating plate (28).

7. The continuous grinding apparatus for processing ultrafine glass fiber powder with a purification structure according to claim 6, characterized in that, The method of using the continuous grinding device for processing ultrafine glass fiber powder with a purification structure is as follows: Quantitative feeding ensures product uniformity: Glass fiber powder is poured into the screening box (4) from the feed inlet (5), and the vibrator (9) on the screening box (4) is started. After the glass fiber powder is vibrated and screened, it falls to the discharge port (7). The first electric push rod (10) in the top box (3) drives the transfer cylinder (12) to move left and right. The transfer cylinder (12) completes the receiving at the discharge port (7) and then starts to discharge at the discharge port (11), discharging the glass fiber powder into the flow channel (13). Finally, the glass fiber powder falls into the top of the grinding block (261) along the flow channel (13). Sealed grinding ensures environmental cleanliness: The turntable (14) at the bottom of the top box (3) drives the ball column (15) to rotate and pushes the movable cover (18) with the grinding top block (20) downward. The limiting rod (264) symmetrically arranged at the top of the grinding box (2) is inserted into the movable cover (18). At this time, the second electric push rod (25) inside the movable cover (18) pushes the limiting block (19) to contact the locking block (265) on the limiting rod (264) to complete the stabilization of the limiting rod (264). At this time, the motor inside the movable cover (18) drives the grinding top block (20) to rotate and grind the glass fiber powder sandwiched between the grinding top block (20) and the grinding bottom block (261). Vibration ensures product dispersion: After the glass fiber powder grinding is completed, the second electric push rod (25) continues to push the limit block (19) to one side. The limit block (19) presses down the limit rod (264). The limit rod (264) drives the grinding base block (261) to descend, causing the block block (263) in the middle of the grinding base block (261) to contact the top protrusion (31) of the vibration plate (28). The block block (263) moves up, causing the ground glass fiber powder to fall onto the vibration plate (28). After being hit by the collision ball (30) on the vibration plate (28), the ground glass fiber powder is successfully discharged from the discharge port (33) on one side of the grinding box (2). After the ground glass fiber powder is discharged, the glass fiber powder that falls again in the flow channel (13) enters the grinding base block (261) from the outlet (27) to start the grinding operation of a new batch of glass fiber powder.

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