Grinding mechanism for raw material grinding and method of use

Abstract

The application discloses a kind of grinding mechanism and use method for raw material grinding, belong to grinding technical field.A kind of grinding mechanism for raw material grinding, including grinding box, further include: screening board, screening board rotation is set in grinding box, for the inside cavity of grinding box is divided into grinding cavity and storage cavity;Grinding block, grinding block is set in the upper side of screening board, and with screening board cooperation is used to grind raw material;Feed pipe, feed pipe is set in grinding box and is communicated with grinding cavity;And spinning mechanism, spinning mechanism is set in the upper side of grinding box, spinning mechanism includes the spinning assembly for driving grinding block rotation and moves down and the connecting piece for connecting spinning assembly and grinding block;The present application is designed by mechanical and airflow cooperation, solves the problem of uneven distribution of raw materials, fine powder and uneven particle size distribution in traditional grinding, significantly improves grinding efficiency and product quality.

Description

Technical Field

[0001] This invention relates to the field of grinding technology, specifically to a grinding mechanism for grinding raw materials and its usage method. Background Technology

[0002] Raw material grinding is a common pretreatment step in industries such as chemicals, building materials, and pharmaceuticals. Its core objective is to refine raw materials to the target particle size through mechanical crushing, thereby improving reaction efficiency, material uniformity, and product quality. The grinding effect directly affects the energy consumption and finished product quality of downstream processes, especially in high-end manufacturing fields such as nanomaterials and new energy, where extremely high precision in particle size distribution is required.

[0003] However, in existing grinding equipment, the fine powder and coarse powder are mixed after grinding. As the fine powder is continuously ground, the coarse powder is ground into fine powder, and the original fine powder is ground into even finer powder, resulting in uneven particle size. Furthermore, some fine powder clumps onto the grinding blocks or base plate under pressure during grinding, causing the grinding work to only act on the surface of the raw material, and the internal particles cannot be effectively ground, resulting in uneven particle size distribution. At the same time, the clump layer absorbs grinding energy, reducing the impact force of the grinding blocks on the raw material, and the grinding efficiency and grinding effect do not meet the requirements. Summary of the Invention

[0004] The purpose of this invention is to solve the problems existing in the prior art by proposing a grinding mechanism and method for grinding raw materials.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A grinding mechanism for grinding raw materials includes a grinding box and further includes: A sieve plate is rotatably disposed inside the grinding chamber to divide the internal cavity of the grinding chamber into a grinding chamber and a storage chamber. Grinding block, which is disposed on the upper side of the sieve plate and cooperates with the sieve plate for grinding raw materials; A feed pipe is installed on the grinding box and connected to the grinding chamber; A spinning mechanism is disposed on the upper side of the grinding box. The spinning mechanism includes a spinning assembly for driving the grinding block to rotate and move downward, and a connecting member for connecting the spinning assembly and the grinding block. The grinding box has an exhaust pipe on the outside of the grinding chamber, and the air inlet of the exhaust pipe is connected to the spinning assembly.

[0006] Preferably, the spinning assembly includes a fixed frame fixed to the top of the grinding box, a hydraulic cylinder fixed to the lower side of the fixed frame, an annular plate connected to the movable end of the hydraulic cylinder, a first sleeve rotatably connected to the annular plate, and a fixed tube disposed inside the first sleeve and fixedly connected to the fixed frame. A first positioning post is fixedly provided on the inner side wall of the first sleeve, and a first spiral guide groove that cooperates with the first positioning post is provided on the outer side wall of the fixed tube.

[0007] Preferably, the connector includes an outer tube fixedly connected to the grinding block and a first elastic element disposed inside the outer tube and connected at both ends to the bottom of the first sleeve and the top of the grinding block, respectively. The outer tube and the first sleeve are vertically slidably disposed, and the outer tube is provided with a positioning component for fixing the outer tube and the first sleeve.

[0008] Preferably, the positioning component includes an L-shaped positioning block slidably connected to the outer tube and a second elastic element disposed between the L-shaped positioning block and the outer wall of the outer tube. One end of the L-shaped positioning block has a pressing slope, the first sleeve has a positioning groove that cooperates with the L-shaped positioning block, the inner top wall of the grinding box is provided with a push rod, and the L-shaped positioning block has a trapezoidal groove that moves against the push rod.

[0009] Preferably, the bottom of the fixed tube is fixed with a piston that is slidably connected to the inner wall of the first sleeve. The center of the piston is provided with a concave hole that communicates with the inner cavity of the fixed tube. The air inlet end of the exhaust pipe is connected to the inner cavity of the fixed tube. An air inlet valve is provided on the piston, and an air outlet valve is provided on the exhaust pipe.

[0010] Preferably, the bottom of the first sleeve is fixedly provided with a movable rod that is slidably connected to the screening plate, the outside of the movable rod is fixedly provided with a second positioning post, the bottom of the screening plate is fixedly provided with a second sleeve that is rotatably connected to the grinding box, and the inner side wall of the second sleeve is provided with a second spiral guide groove that cooperates with the second positioning post.

[0011] Preferably, the top of the grinding box is rotatably connected to a driven gear that is slidably disposed with the first sleeve, the top of the grinding box is rotatably connected to a rotating plate for connecting the driven gear and the push rod, the top of the grinding box is slidably connected to a rack plate that meshes with the driven gear, a connecting rod is disposed between the rack plate and the feed pipe, a guide strip is fixedly disposed on the inner side wall of the driven gear, and a guide groove that cooperates with the guide strip is opened on the outer side wall of the first sleeve.

[0012] Preferably, the connecting rod includes a first connecting rod fixedly connected to the rack plate, a second connecting rod fixedly connected to the feed pipe, and an elastic telescopic rod for connecting the first connecting rod and the second connecting rod. A support plate is fixedly provided on the outside of the grinding box, and a plurality of protrusions are fixedly provided on the support plate. A groove is provided on the feed pipe, and a resistance block that moves against the protrusions is slidably connected in the groove. A third elastic element is provided between the resistance block and the inner wall of the groove.

[0013] Preferably, the grinding box is provided with an arc-shaped door panel at the storage cavity.

[0014] This invention also discloses a method of using a grinding mechanism for grinding raw materials, comprising the following steps: S1: Raw materials are fed into the feed hopper at the end of the feed pipe. The hydraulic cylinder pushes the annular plate down, which drives the first sleeve to rotate and move down. The first sleeve drives the grinding block to rotate and press down synchronously through the connector, applying shearing and extrusion forces to the raw materials on the screening plate. S2: When the first sleeve rotates, the movable rod rotates with the first sleeve, and its second positioning column moves along the second spiral guide groove of the second sleeve, driving the screen plate to rotate, so that the raw material falling from the discharge end of the feed pipe is evenly distributed on the screen plate. Furthermore, when the first set of tubes rotates, the driven gear is driven by the guide bar to mesh with the rack plate, and the rack plate is pulled by the connecting rod to move the feed tube laterally, so that the raw material is further evenly distributed on the rotating screening plate and avoids accumulation. S3: When the first sleeve moves down, the space below the piston increases, and external air is drawn into the inner cavity of the fixed tube through the intake valve; As the grinding block moves upward, the piston compresses the air, and the airflow is sprayed onto the sieve plate through the exhaust pipe, blowing away the clump of powder. S4: When the grinding block is pressed down to its limit, it grinds the raw material on the screening plate. As the first sleeve continues to move down, the first sleeve squeezes the inclined surface of the L-shaped positioning block, causing it to retract and spring into the positioning groove, locking the first sleeve and the outer tube. Then, the hydraulic cylinder is controlled to return. When the push rod pushes into the trapezoidal groove of the L-shaped positioning block, it is forced to disengage from the positioning groove. The first elastic element releases its elastic force, driving the grinding block to shake down instantly, shaking off the slab layer. S5: Repeat steps S1-S4 to achieve orderly grinding of the raw materials.

[0015] As can be seen from the above technical solutions, the present invention has the following beneficial effects: 1. In this invention, the problems of uneven raw material distribution, fine powder caking, and uneven particle size distribution in traditional grinding are solved by the coordinated design of mechanical and airflow, which significantly improves grinding efficiency and finished product quality; 2. In this invention, when the first sleeve rotates, the movable rod rotates with the first sleeve, and its second positioning column moves along the second spiral guide groove of the second sleeve, driving the screening plate to rotate, so that the raw material falling from the discharge end of the feed pipe is evenly distributed on the screening plate; and when the first sleeve rotates, it drives the driven gear to mesh with the rack plate through the guide bar, and the rack plate pulls the feed pipe to move laterally through the connecting rod, so that the raw material is further evenly distributed on the rotating screening plate, avoiding accumulation, so that the raw material is evenly distributed on the screening plate, ensuring the grinding efficiency and grinding effect of the grinding block on the raw material; 3. In this invention, when the piston retracts, compressed air is blown toward the sieve plate through the exhaust pipe, loosening the caking layer on the sieve plate; when the L-shaped positioning block is removed from the positioning groove, the first sleeve and the outer tube are no longer restricted, and the grinding block moves down instantly to generate high-frequency vibration, shaking off the attached fine powder and caking layer. The airflow blowing and mechanical shaking have a dual effect, reducing the caking layer and improving the grinding efficiency. 4. In this invention, when the feed pipe moves laterally, the resistance block in the groove collides with the protrusion of the support plate, and the third elastic element is pressed to retract the resistance block. Then, the feed pipe quickly resets under the action of the elastic telescopic rod, so that the feed pipe moves intermittently during the lateral movement, generating high-frequency vibration, preventing raw material blockage and ensuring stable raw material feeding. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 ; Figure 3 For the present invention Figure 2 Enlarged structural diagram of section A in the middle; Figure 4 This is a cross-sectional structural diagram of the present invention; Figure 5 For the present invention Figure 4 Enlarged structural diagram of section B; Figure 6 This is a schematic cross-sectional view of the first sleeve of the present invention; Figure 7 For the present invention Figure 6 Enlarged structural diagram of section C; Figure 8 This is a schematic cross-sectional view of the second sleeve of the present invention; Figure 9 This is a schematic diagram of the external structure of the feed pipe of the present invention; Figure 10 This is a schematic cross-sectional view of the feed pipe of the present invention; Figure 11 This is a schematic diagram of the connecting rod of the present invention.

[0017] In the diagram: 1. Grinding box; 101. Grinding chamber; 102. Storage chamber; 1021. Arc-shaped door panel; 2. Screening plate; 3. Grinding block; 4. Feed pipe; 5. Connector; 501. Outer pipe; 502. First elastic element; 6. Exhaust pipe; 7. Fixing frame; 701. Hydraulic cylinder; 702. Annular plate; 703. First sleeve; 7031. First positioning post; 7032. Positioning groove; 7033. Guide groove; 704. Fixing pipe; 7041. First spiral guide groove; 8. L 801. Trapezoidal positioning block; 802. Second elastic element; 803. Trapezoidal groove; 9. Top rod; 10. Piston; 1004. Concave hole; 11. Movable rod; 115. Second positioning post; 12. Second sleeve; 126. Second spiral guide groove; 13. Driven gear; 137. Rack plate; 138. Guide bar; 14. First connecting rod; 149. Second connecting rod; 140. Elastic telescopic rod; 15. Support plate; 151. Protrusion; 16. Groove; 161. Resistance block; 162. Third elastic element. Detailed Implementation

[0018] A preferred embodiment of the present invention will now be described in detail with reference to the accompanying drawings.

[0019] To achieve the above objectives, the embodiments of the present invention adopt the following technical solutions: Reference Figure 1 , Figure 2 , Figure 4 and Figure 6 As shown, this embodiment proposes a grinding mechanism for raw material grinding, including a grinding box 1, and further including: a sieve plate 2, grinding blocks 3, a feed pipe 4, and a spinning mechanism; the sieve plate 2 is rotatably disposed inside the grinding box 1, which serves as the main container, and its interior is divided into a grinding chamber 101 and a storage chamber 102 by the sieve plate 2. The grinding chamber 101 is used for crushing raw materials, and the storage chamber 102 collects qualified fine powder; the grinding blocks 3 are disposed on the upper side of the sieve plate 2 and cooperate with the sieve plate 2 for grinding raw materials; the feed pipe 4 is disposed on the grinding box 1 and cooperates with the grinding chamber 101. 1. The grinding chamber 1 is connected; the spinning mechanism is set on the upper side of the grinding chamber 1. The spinning mechanism includes a spinning assembly for driving the grinding block 3 to rotate and move downward, and a connecting piece 5 for connecting the spinning assembly and the grinding block 3. The grinding block 3 is located above the sieve plate 2. It is linked with the spinning mechanism through the connecting piece 5 to realize the rotating and pressing action, and apply shearing force and extrusion force to the raw material; wherein, the grinding chamber 1 is provided with an exhaust pipe 6 outside the grinding chamber 101. The air inlet end of the exhaust pipe 6 is connected to the spinning assembly. When the spinning mechanism retracts, the airflow blows towards the sieve plate 2 through the exhaust pipe 6 to loosen the plated layer; Raw materials fall onto the sieve plate 2 inside the grinding chamber 1 through the feed pipe 4. The spinning mechanism is controlled to rotate and move the grinding block 3 downward through the connecting piece 5, applying shearing and extrusion forces to the raw materials on the sieve plate 2. Raw materials that meet the production requirements pass through the sieve plate 2 and fall into the storage chamber 102. Large particles of raw materials that do not yet meet the production requirements continue to be ground by the spinning mechanism. When the spinning mechanism retracts, the extracted airflow is blown onto the sieve plate 2 through the exhaust pipe 6 to loosen the caking layer. Through the coordinated design of mechanical and airflow, the problems of uneven raw material distribution, fine powder caking, and uneven particle size distribution in traditional grinding are solved, significantly improving grinding efficiency and finished product quality.

[0020] Reference Figure 1 , Figure 2 , Figure 4 , Figure 5 and Figure 6 As shown, in a preferred embodiment, based on the above method, the spinning assembly further includes a fixed frame 7 fixed to the top of the grinding box 1, a hydraulic cylinder 701 fixed to the lower side of the fixed frame 7, an annular plate 702 connected to the movable end of the hydraulic cylinder 701, a first sleeve 703 rotatably connected to the annular plate 702, and a fixed tube 704 disposed in the first sleeve 703 and fixedly connected to the fixed frame 7. A first positioning post 7031 is fixedly provided on the inner side wall of the first sleeve 703, and a first spiral guide groove 7041 that cooperates with the first positioning post 7031 is opened on the outer side wall of the fixed tube 704. The fixed frame 7 is fixed to the top of the grinding box 1, serving as a support frame for the spinning assembly and ensuring the overall structural stability. The hydraulic cylinder 701 is vertically installed on the lower side of the fixed frame 7, driving the annular plate 702 to move linearly through its movable end, providing downward pressure. The annular plate 702 is rigidly connected to the movable end of the hydraulic cylinder 701, transmitting linear thrust. The first sleeve 703 is rotatably connected to the annular plate 702 through a bearing, achieving rotational freedom. The first positioning post 7031 on the inner side of the first sleeve 703 cooperates with the first spiral guide groove 7041 of the fixed tube 704 to convert linear motion into a combined rotational and downward pressing motion. The first sleeve 703 drives the grinding block 3 to rotate and press down through the connector 5, forming a combined shearing and extrusion grinding force, optimizing grinding efficiency. The combined rotational and downward pressing motion makes the raw material more evenly stressed, and the grinding efficiency is improved compared to traditional vertical pressing.

[0021] Reference Figure 4 , Figure 5 , Figure 6 and Figure 7As shown, in a preferred embodiment, based on the above method, the connecting member 5 further includes an outer tube 501 fixedly connected to the grinding block 3 and a first elastic element 502 disposed inside the outer tube 501 and connected at both ends to the bottom of the first sleeve 703 and the top of the grinding block 3, respectively. The outer tube 501 serves as a rigid support structure for the connecting member 5. Its top is vertically slidingly engaged with the first sleeve 703 to achieve relative movement, and its bottom is fixedly connected to the grinding block 3, transmitting rotation and downward pressure. The first elastic element 502 deforms and absorbs the impact force the moment the grinding block 3 contacts the raw material. To prevent damage to the equipment from rigid collisions, a positioning assembly for fixing the outer tube 501 and the first sleeve 703 is provided on the outer tube 501. The positioning assembly includes an L-shaped positioning block 8 slidably connected to the outer tube 501 and a second elastic element 801 disposed between the L-shaped positioning block 8 and the outer wall of the outer tube 501. A pressing slope is provided at the top of one end of the L-shaped positioning block 8. A positioning groove 7032 that cooperates with the L-shaped positioning block 8 is provided on the first sleeve 703. A push rod 9 is provided on the inner top wall of the grinding box 1. A trapezoidal groove 802 that moves against the push rod 9 is provided on the L-shaped positioning block 8. Specifically, when the first sleeve 703 rotates and moves downward relative to the fixed tube 704, the grinding block 3 works with the screening plate 2 to grind the raw materials scattered on the screening plate 2. During this period, when the grinding block 3 can no longer move downward, the first sleeve 703 moves downward relative to the outer tube 501, and the first elastic element 502 is compressed. As the first sleeve 703 continues to move downward and presses down on the inclined surface of the L-shaped positioning block 8, the L-shaped positioning block 8 avoids the downward movement of the first sleeve 703. When the end of the L-shaped positioning block 8 is aligned with the positioning groove 7032, the L-shaped positioning block 8 is reset under the push of the second elastic element 801 and inserted into the positioning groove 7032 to position the first sleeve 703 and the outer tube 501. Subsequently, the hydraulic cylinder 701 drives the annular plate 702 to move upward, causing the grinding block 3 to move upward synchronously. When the trapezoidal groove 802 of the L-shaped positioning block 8 abuts against the lower part of the top rod 9, the L-shaped positioning block 8 is forced to move laterally to the outside of the outer tube 501, so that the L-shaped positioning block 8 is no longer inserted in the positioning groove 7032. This causes the first elastic element 502 to push the grinding block 3 to move downward instantly, thus shaking it and shaking off the powdery material that has clumped on the lower side of the grinding block 3 during grinding. The positioning component effectively prevents the first elastic element 502 from slowly recovering as the hydraulic cylinder 701 contracts, making it impossible for the grinding block 3 to effectively generate vibration. This solves the problem of powder clumping on the grinding block 3 in traditional technology, which affects the grinding effect.

[0022] Reference Figure 1 , Figure 2 , Figure 4 and Figure 6As shown, in a preferred embodiment, based on the above method, a piston 10 is further fixed at the bottom of the fixed tube 704 and slidably connected to the inner wall of the first sleeve 703. The piston 10 is fixed at the bottom of the fixed tube 704 and forms a sliding seal with the inner wall of the first sleeve 703 to ensure airtightness during vertical movement. The piston 10 is usually made of wear-resistant polyurethane or metal coating. A concave hole 1001 communicating with the inner cavity of the fixed tube 704 is opened in the center of the piston 10. The air inlet end of the exhaust pipe 6 is connected to the inner cavity of the fixed tube 704. An air inlet valve is provided on the piston 10 and an exhaust valve is provided on the exhaust pipe 6. When the first sleeve 703 rotates and moves downward relative to the fixed tube 704, the space between the first sleeve 703 and the lower part of the piston 10 and the inner cavity of the fixed tube 704 increases, and external air is drawn in through the air intake valve. As the grinding block 3 rotates and moves downward, the grinding block 3 works with the sieve plate 2 to grind the raw material that is evenly scattered on the sieve plate 2. Then, the positioning component positions the first sleeve 703 and the outer tube 501. Subsequently, the hydraulic cylinder 701 drives the annular plate 702 to move upward, so that the grinding block 3 moves upward synchronously. At this time, the space between the first sleeve 703 and the bottom of the piston 10 decreases, and the air drawn in from the bottom of the piston 10 and the inside of the fixed tube 704 is discharged to the sieve plate 2 through the exhaust pipe 6. The airflow blows the powdery raw material that has been ground and compressed on the sieve plate 2, loosens the caking layer on the sieve plate 2, and allows the powder that meets the processing requirements to pass through the sieve plate 2 and enter the storage cavity 102, ensuring the grinding efficiency and grinding effect of the grinding block 3 on the raw material on the sieve plate 2.

[0023] Reference Figure 1 , Figure 2 , Figure 4 , Figure 9 , Figure 10 and Figure 11 As shown, in a preferred embodiment, based on the above method, the bottom of the first sleeve 703 is further provided with a movable rod 11 that is slidably connected to the screening plate 2, and a second positioning post 111 is fixedly provided on the outside of the movable rod 11. The bottom of the screening plate 2 is provided with a second sleeve 12 that is rotatably connected to the grinding box 1. The movable rod 11 and the second sleeve 12 are slidably sealed to prevent dust from entering the second sleeve 12 and causing the movable rod 11 to be blocked from vertically moving downward. The inner wall of the second sleeve 12 is provided with a part that corresponds to the second positioning post 111. The second spiral guide groove 121 is matched; as the first sleeve 703 moves down and rotates, the first sleeve 703 drives the movable rod 11 to rotate and move down. The second positioning post 111 on the outside of the movable rod 11 matches the second spiral guide groove 121 on the inner wall of the second sleeve 12, so that the second sleeve 12 drives the screening plate 2 to rotate, thereby making the raw material falling from the discharge end of the feed pipe 4 evenly scattered on the screening plate 2, avoiding the accumulation of raw material in one place, making the raw material evenly distributed on the screening plate 2, and ensuring the grinding efficiency and grinding effect of the grinding block 3 on the raw material; It should be noted that, in order to further ensure that the raw material is evenly distributed on the screening plate 2, the top of the grinding box 1 is rotatably connected to a driven gear 13 that is slidably disposed with the first sleeve 703. The top of the grinding box 1 is rotatably connected to a rotating plate for connecting the driven gear 13 and the top rod 9. The top of the grinding box 1 is slidably connected to a rack plate 131 that meshes with the driven gear 13. A connecting rod is provided between the rack plate 131 and the feed pipe 4. A guide strip 132 is fixed on the inner side wall of the driven gear 13. A guide groove 7033 that cooperates with the guide strip 132 is opened on the outer side wall of the first sleeve 703. The raw material is fed into the feed hopper at the end of the feed pipe 4. The raw material enters the grinding chamber 101 through the feed pipe 4 and falls onto the screening plate 2. When the spinning mechanism is working, it drives the first sleeve 703 to rotate and move downward. The driven gear 13 on the outer side meshes with the rack plate 131 for transmission. The rack plate 131 drives the feed pipe 4 to move to the outside of the grinding box 1 through the connecting rod, so that the discharge end of the feed pipe 4 moves from the center area of ​​the grinding box 1 to the outside of the grinding box 1, adjusting the range of material falling from the discharge end of the feed pipe 4. In conjunction with the rotation of the screening plate 2, the material falling from the discharge end of the feed pipe 4 is evenly scattered on the screening plate 2, avoiding the accumulation of material in one place, which would affect the subsequent grinding effect. As the grinding block 3 rotates and moves down, the discharge end of the feed pipe 4 continues to move laterally and move out of the grinding box 1 without affecting the downward movement of the grinding block 3. The grinding block 3, in conjunction with the screening plate 2, grinds the material evenly scattered on the screening plate 2. When the hydraulic cylinder 701 retracts, the discharge end of the feed pipe 4 continues to feed material from the outside of the grinding box 1 to the center of the grinding box 1. It should be noted that, to prevent raw materials from clogging the feed pipe 4, the connecting rod includes a first connecting rod 14 fixedly connected to the rack plate 131, a second connecting rod 141 fixedly connected to the feed pipe 4, and an elastic telescopic rod 142 for connecting the first connecting rod 14 and the second connecting rod 141. A support plate 15 is fixedly provided on the outside of the grinding box 1, and several protrusions 151 are fixedly provided on the support plate 15. A groove 16 is provided on the feed pipe 4, and a resistance block 161 that slidably abuts against the protrusions 151 is slidably connected in the groove 16. A third elastic element 162 is provided between the resistance block 161 and the inner wall of the groove 16. When the feed pipe 4 moves laterally relative to the grinding box 1, when the resistance block 161 abuts against the protrusions 151 on the support plate 15, the third elastic element 162 is less prone to deformation because its stiffness coefficient is greater than that of the elastic telescopic rod 142. The retractor 142 is compressed first. As the first connecting rod 14 continues to move closer to the outer wall of the grinding box 1, the third elastic element 162 begins to be compressed. The resistance block 161 retracts into the groove 16, so that the resistance block 161 no longer abuts against the protrusion 151. This allows the feed pipe 4 to move rapidly under the elastic force of the elastic telescopic rod 142 until the resistance block 161 abuts against the next protrusion 151. This causes the feed pipe 4 to intermittently and repeatedly move laterally and shake as it moves into the grinding box 1, making it less likely for the raw material in the feed pipe 4 to become clogged and ensuring stable feeding. It should be noted that since the feed pipe 4 needs to move laterally during operation and is not tilted, the conveying pipe inside the feed pipe 4 needs to be tilted so that the raw material can fall smoothly from high to low. If the raw material has good fluidity, there is no need to set the protrusion 151 and the resistance block 161 structure.

[0024] Reference Figure 1 As shown, in a preferred embodiment, based on the above method, the grinding box 1 is provided with an arc-shaped door panel 1021 at the storage cavity 102; when the storage cavity 102 needs to discharge material, the arc-shaped door panel 1021 is controlled to rotate and open to remove the powder. In actual use, the arc-shaped door panel 1021 should be combined with an elastic sealing strip to reduce the dust leakage rate of the storage cavity 102 of the grinding box 1.

[0025] This invention also discloses a method of using a grinding mechanism for grinding raw materials, comprising the following steps: S1: Raw material is fed into the feed hopper at the end of feed pipe 4. Hydraulic cylinder 701 pushes the annular plate 702 to move down, which drives the first sleeve 703 to rotate and move down. The first sleeve 703 drives the grinding block 3 to rotate and press down synchronously through the connector 5, applying shearing and extrusion force to the raw material on the screening plate 2. S2: When the first sleeve 703 rotates, the movable rod 11 rotates with the first sleeve 703, and its second positioning column 111 moves along the second spiral guide groove 121 of the second sleeve 12, driving the screen plate 2 to rotate, so that the raw material falling from the discharge end of the feed pipe 4 is evenly distributed on the screen plate 2. Furthermore, when the first sleeve 703 rotates, it drives the driven gear 13 to mesh with the rack plate 131 through the guide bar 132. The rack plate 131 pulls the feed pipe 4 to move laterally through the connecting rod, so that the raw material is further evenly distributed on the rotating screen plate 2, avoiding accumulation. S3: When the first sleeve 703 moves down, the space below the piston 10 increases, and external air is drawn into the inner cavity of the fixed tube 704 through the intake valve. When the grinding block 3 moves upward, the piston 10 compresses the air, and the airflow is sprayed onto the sieve plate 2 through the exhaust pipe 6, blowing away the clump of powder. S4: When the grinding block 3 is pressed down to its limit, it grinds the raw material on the screening plate 2. As the first sleeve 703 continues to move down, the first sleeve 703 squeezes the inclined surface of the L-shaped positioning block 8, causing it to retract and spring into the positioning groove 7032, locking the first sleeve 703 and the outer tube 501. Then, the hydraulic cylinder 701 is controlled to return. When the push rod 9 pushes into the trapezoidal groove 802 of the L-shaped positioning block 8, it is forced to disengage from the positioning groove 7032. The first elastic element 502 releases its elastic force, driving the grinding block 3 to shake down instantly and shake off the plated layer. S5: Repeat steps S1-S4 to achieve orderly grinding of the raw materials.

[0026] The accompanying drawings in this application are for illustrative purposes only. The dimensions and shapes of the components shown are not actual limitations but are merely schematic representations. In actual implementation, the components can be reasonably configured and adjusted according to specific needs and actual conditions.

[0027] The above-described embodiments are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Various modifications and improvements made by those skilled in the art to the technical solutions of the present invention without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. A grinding mechanism for grinding raw materials, comprising a grinding box (1), characterized in that, Also includes: Screening plate (2), which is rotatably disposed inside grinding box (1) to divide the internal cavity of grinding box (1) into grinding cavity (101) and storage cavity (102). Grinding block (3), which is disposed on the upper side of sieve plate (2) and cooperates with sieve plate (2) for grinding raw materials; Feed pipe (4), the feed pipe (4) is installed on the grinding box (1) and connected to the grinding chamber (101); A spinning mechanism is provided on the upper side of the grinding box (1). The spinning mechanism includes a spinning assembly for driving the grinding block (3) to rotate and move downward, and a connector (5) for connecting the spinning assembly and the grinding block (3). The grinding box (1) is provided with an exhaust pipe (6) on the outside of the grinding chamber (101), and the air inlet end of the exhaust pipe (6) is connected to the spinning assembly.

2. The grinding mechanism for raw material grinding according to claim 1, characterized in that, The spinning assembly includes a fixed frame (7) fixed on the top of the grinding box (1), a hydraulic cylinder (701) fixed on the lower side of the fixed frame (7), an annular plate (702) connected to the movable end of the hydraulic cylinder (701), a first sleeve (703) rotatably connected to the annular plate (702), and a fixed tube (704) disposed in the first sleeve (703) and fixedly connected to the fixed frame (7). A first positioning post (7031) is fixedly provided on the inner side wall of the first sleeve (703), and a first spiral guide groove (7041) that cooperates with the first positioning post (7031) is provided on the outer side wall of the fixed tube (704).

3. The grinding mechanism for raw material grinding according to claim 2, characterized in that, The connector (5) includes an outer tube (501) fixedly connected to the grinding block (3) and a first elastic element (502) disposed inside the outer tube (501) and connected at both ends to the bottom of the first sleeve (703) and the top of the grinding block (3) respectively. The outer tube (501) and the first sleeve (703) are vertically slidably disposed. The outer tube (501) is provided with a positioning component for fixing the outer tube (501) and the first sleeve (703).

4. The grinding mechanism for raw material grinding according to claim 3, characterized in that, The positioning assembly includes an L-shaped positioning block (8) slidably connected to the outer tube (501) and a second elastic element (801) disposed between the L-shaped positioning block (8) and the outer wall of the outer tube (501). One end of the L-shaped positioning block (8) is provided with a pressing slope. The first sleeve (703) is provided with a positioning groove (7032) that cooperates with the L-shaped positioning block (8). The inner top wall of the grinding box (1) is provided with a push rod (9). The L-shaped positioning block (8) is provided with a trapezoidal groove (802) that moves against the push rod (9).

5. A grinding mechanism for raw material grinding according to claim 4, characterized in that, The bottom of the fixed tube (704) is fixed with a piston (10) that is slidably connected to the inner wall of the first sleeve (703). The center of the piston (10) is provided with a concave hole (1001) that is connected to the inner cavity of the fixed tube (704). The air inlet end of the exhaust pipe (6) is connected to the inner cavity of the fixed tube (704). An air inlet valve is provided on the piston (10), and an exhaust valve is provided on the exhaust pipe (6).

6. The grinding mechanism for raw material grinding according to claim 5, characterized in that, The bottom of the first sleeve (703) is fixed with a movable rod (11) that is slidably connected to the sieve plate (2). The outer side of the movable rod (11) is fixed with a second positioning post (111). The bottom of the sieve plate (2) is fixed with a second sleeve (12) that is rotatably connected to the grinding box (1). The inner side wall of the second sleeve (12) is provided with a second spiral guide groove (121) that cooperates with the second positioning post (111).

7. A grinding mechanism for raw material grinding according to claim 6, characterized in that, The grinding box (1) is rotatably connected to the top of a driven gear (13) that is slidably disposed with the first sleeve (703). The grinding box (1) is rotatably connected to a rotating plate for connecting the driven gear (13) and the push rod (9). The grinding box (1) is slidably connected to a rack plate (131) that meshes with the driven gear (13). A connecting rod is provided between the rack plate (131) and the feed pipe (4). A guide strip (132) is fixedly provided on the inner side wall of the driven gear (13). A guide groove (7033) that cooperates with the guide strip (132) is opened on the outer side wall of the first sleeve (703).

8. A grinding mechanism for raw material grinding according to claim 7, characterized in that, The connecting rod includes a first connecting rod (14) fixedly connected to the rack plate (131), a second connecting rod (141) fixedly connected to the feed pipe (4), and an elastic telescopic rod (142) for connecting the first connecting rod (14) and the second connecting rod (141). A support plate (15) is fixedly provided on the outside of the grinding box (1). Several protrusions (151) are fixedly provided on the support plate (15). A groove (16) is provided on the feed pipe (4). A resistance block (161) that moves against the protrusion (151) is slidably connected in the groove (16). A third elastic element (162) is provided between the resistance block (161) and the inner wall of the groove (16).

9. A grinding mechanism for raw material grinding according to claim 8, characterized in that, The grinding box (1) is provided with an arc-shaped door panel (1021) at the storage cavity (102).

10. A method of using the grinding mechanism for raw material grinding as described in claim 9, characterized in that, Includes the following steps: S1: The raw material is fed into the feed hopper at the end of the feed pipe (4). The hydraulic cylinder (701) pushes the ring plate (702) down, which drives the first sleeve (703) to rotate and move down. The first sleeve (703) drives the grinding block (3) to rotate and press down synchronously through the connector (5), applying shearing and extrusion force to the raw material on the screening plate (2). S2: When the first sleeve (703) rotates, the movable rod (11) rotates with the first sleeve (703), and its second positioning column (111) moves along the second spiral guide groove (121) of the second sleeve (12), driving the screening plate (2) to rotate, so that the raw material falling from the discharge end of the feed pipe (4) is evenly distributed on the screening plate (2); When the first sleeve (703) rotates, it drives the driven gear (13) to mesh with the rack plate (131) through the guide bar (132). The rack plate (131) pulls the feed pipe (4) to move laterally through the connecting rod, so that the raw material is further evenly distributed on the rotating screen plate (2) to avoid accumulation. S3: When the first sleeve (703) moves down, the space below the piston (10) increases, and external air is drawn into the inner cavity of the fixed tube (704) through the air intake valve; When the grinding block (3) moves upward, the piston (10) compresses the air, and the airflow is sprayed onto the sieve plate (2) through the exhaust pipe (6) to disperse the clumped powder; S4: When the grinding block (3) is pressed down to the limit, it grinds the raw material on the screening plate (2). As the first sleeve (703) continues to move down, the first sleeve (703) squeezes the inclined surface of the L-shaped positioning block (8), causing it to retract and spring into the positioning groove (7032), locking the first sleeve (703) and the outer tube (501). Then, the hydraulic cylinder (701) is controlled to return. When the push rod (9) pushes into the trapezoidal groove (802) of the L-shaped positioning block (8), it forces it to leave the positioning groove (7032). The first elastic element (502) releases its elastic force, driving the grinding block (3) to shake down instantly and shake off the plated layer. S5: Repeat steps S1-S4 to achieve orderly grinding of the raw materials.

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