Material grinding head

Abstract

The utility model relates to domestic grinding field discloses material grinding head, including upper mill cover and lower mill base, upper mill cover covers and forms chamber on lower mill base, installs transmission assembly in chamber, the bottom of lower mill base is installed with grinding blade, forms grinding cavity between transmission assembly, grinding blade and lower mill base, the inside wall of lower mill base is equipped with support flange, grinding blade is fixed on support flange, install the joint of power source connection on upper mill cover, the lower end of joint enters into chamber and is connected with transmission assembly and drives its synchronous rotation. The joint of upper mill cover is connected with power source and can drive transmission assembly to rotate, realizes external driving source to drive transmission assembly to rotate through joint to complete grinding, avoids upper mill cover to rotate directly, and this kind of structure form is more safe, reliable, and grinding blade is directly arranged on lower mill base, simple structure, convenient assembly, the design of grinding cavity can make material grinding more concentrated, improves grinding efficiency and stability.

Description

Technical Field

[0001] This utility model relates to the field of household grinding, and in particular to a material grinding head. Background Technology

[0002] Grinding equipment is widely used in food processing, seasoning preparation, and other fields. Traditional grinding equipment, such as grinders, mostly consists of grinding blades mounted on a support. This structure has obvious drawbacks: on the one hand, it is impossible to replace the grinding blades according to actual grinding needs, making it difficult to adapt to the grinding requirements of different materials; on the other hand, with long-term use, the grinding blades can easily detach from the support, which not only affects the grinding effect but may also cause safety hazards.

[0003] To address the aforementioned issues, existing technology (publication number: CN216020619U) proposes a grinding cylinder with a fixed connection for grinding blades. This technical solution includes an upper cover assembly, a lower cover assembly, and a grinding head assembly. By placing the grinding blade between a fixed sleeve and a grinding blade cover, and utilizing the first threaded post at the lower end of the fixed sleeve passing through the fifth through hole of the grinding blade, and connecting it to the grinding blade cover via fasteners, the grinding blade can be replaced and is less likely to fall off during use, thus improving safety.

[0004] However, there is still room for improvement in the existing technology. For example, the structure of its grinding head assembly is relatively complex, and the installation and disassembly of the grinding blades are not convenient enough; the fitting precision between the transmission component and the grinding blades needs to be improved, which may affect the grinding efficiency and the uniformity of the grinding particles; the structural design of the grinding chamber is still insufficient in terms of material containment and grinding path optimization, which may result in some materials not being fully ground, affecting the grinding effect. Utility Model Content

[0005] This invention addresses the shortcomings of existing technologies by providing a material grinding head.

[0006] To solve the above-mentioned technical problems, the present invention provides a solution through the following technical method:

[0007] The material grinding head includes an upper grinding cover and a lower grinding base. The upper grinding cover covers the lower grinding base and forms a cavity. A transmission component is installed in the cavity. A grinding blade is installed at the bottom of the lower grinding base. A grinding chamber is formed between the transmission component, the grinding blade, and the lower grinding base. A support flange is provided on the inner side wall of the lower grinding base. The grinding blade is fixed on the support flange. A connector for connecting to a power source is installed on the upper grinding cover. The lower end of the connector extends into the cavity and connects to the transmission component, driving it to rotate synchronously.

[0008] As a preferred embodiment, the transmission assembly includes a clamping element and a transmission element. One end of the transmission element is connected to the connector and rotates synchronously with it, while the other end of the transmission element is connected to the clamping element and rotates synchronously with it. An elastic element is installed between the transmission element and the clamping element.

[0009] As a priority, the clamping member is provided with a mounting cavity, and the elastic member is placed inside the mounting cavity. One end of the elastic member rests against the transmission member, and the other end rests against the bottom of the mounting cavity.

[0010] As a preferred feature, the inner wall of the mounting cavity is provided with an axially extending guide rail, and the transmission component is provided with a guide notch. The guide notch is adapted to the guide rail so that the transmission component can move axially along the guide rail.

[0011] As a preferred feature, the lower end of the transmission component extends into the mounting cavity, and a limiting block is provided at the port of the mounting cavity to restrict the upward movement of the transmission component. The number of limiting blocks is at least two and they are evenly distributed on the clamping component.

[0012] As a preferred feature, the transmission component is an integral piece, comprising a transmission shaft portion and a cover plate portion. The outer diameter of the cover plate portion is larger than the outer diameter of the transmission shaft portion. The transmission shaft portion is located on the cover plate portion, and the joint is connected to the transmission shaft portion. The cover plate portion extends into the clamping component.

[0013] As a preferred feature, the lower end face of the cover plate is provided with a downwardly protruding lower positioning ring, and the elastic element is a spring, with the upper end of the elastic element fitted onto the lower positioning ring.

[0014] As a priority, a connecting post is provided at the top of the drive shaft. The connecting post is polygonal in shape, and a bushing is provided at the lower end of the connector. The inner hole of the bushing is also polygonal, and the bushing is adapted to the connecting post.

[0015] As a priority, the upper grinding cover is provided with an inwardly protruding boss, the lower end of the bushing passes through the boss and connects to the drive shaft, and the upper end of the drive shaft is provided with an upwardly protruding upper positioning ring, which surrounds the boss.

[0016] As a priority, a pressure sleeve is tightly fitted inside the lower grinding base, which is fastened to the lower grinding base and presses the grinding blade against the support flange.

[0017] As a priority, the clamping member has an outwardly flared limiting flange at its port. The clamping member extends into the pressure sleeve, and when the clamping member moves to its lowest position, the limiting flange limits it to the top of the pressure sleeve.

[0018] As a preferred feature, the upper grinding cover has a downwardly recessed mounting groove in the middle, and an upwardly protruding slide rail on the bottom surface of the mounting groove. The connector is installed in the mounting groove and contacts the slide rail.

[0019] As a priority, the bottom surface of the clamping component is provided with a number of positioning grooves, which are evenly distributed on the bottom surface of the clamping component.

[0020] As a priority, the grinding blade is provided with several rows of scraper units, all of which are arranged in a circumferential array on the grinding blade. Each row of scraper units includes a number of through holes, and each through hole has an upward-facing grinding blade at its edge.

[0021] As a priority, the upper end of the connector is provided with an interface groove, the inner wall of the interface groove is provided with at least two evenly distributed positioning blocks, and the middle of the interface groove is provided with an upwardly protruding positioning post.

[0022] This utility model, by adopting the above technical solution, has significant technical effects:

[0023] After the upper grinding cover is connected to the power source, it can drive the transmission component to rotate. This allows the external drive source to drive the transmission component to rotate via the connector to complete the grinding process, avoiding direct rotation of the upper grinding cover. This structure is safer and more reliable. The grinding blades are directly mounted on the lower grinding base, making the structure simple and easy to assemble. At the same time, the design of the grinding chamber allows for more concentrated grinding of materials, improving grinding efficiency and stability. Attached Figure Description

[0024] Figure 1 This is a cross-sectional structural diagram of the present invention.

[0025] Figure 2 This is a three-dimensional structural diagram of the present invention.

[0026] Figure 3 This is a three-dimensional structural diagram of the upper grinding cover.

[0027] Figure 4 This is a three-dimensional structural diagram of the clamping component viewed from above.

[0028] Figure 5 This is a structural schematic diagram of the clamping component viewed from below.

[0029] Figure 6 This is a structural schematic diagram of the transmission component.

[0030] Figure 7 This is a schematic diagram of the connector structure.

[0031] Figure 8 This is a schematic diagram of the grinding blade.

[0032] The names of the body parts referred to by the numbers in the above attached diagrams are as follows:

[0033] 1—Upper grinding cover, 11—Boss, 12—Mounting groove, 13—Slide rail

[0034] 2—Lower grinding seat, 21—Support flange

[0035] 3—Transmission assembly, 31—Clamping component, 32—Transmission component, 311—Mounting cavity, 312—Guide rail, 313—Limiting block, 314—Limiting flange, 315—Positioning groove, 321—Guide notch, 322—Transmission shaft section, 323—Cover plate section, 324—Lower positioning ring, 325—Connecting post, 326—Upper positioning ring

[0036] 4—Grinding blade, 41—Through hole, 42—Grinding knife

[0037] 5—Connector, 51—Sleeve, 52—Interface Groove, 53—Positioning Block, 54—Positioning Pin

[0038] 6—Elastic element

[0039] 7—Pressure sleeve

[0040] 100—Cavity

[0041] 200—Grinding chamber Detailed Implementation

[0042] The following is in conjunction with the appendix Figure 1-8 The present invention will be further described in detail with reference to the embodiments.

[0043] Example 1

[0044] The material grinding head includes an upper grinding cover 1 and a lower grinding seat 2. The upper grinding cover 1 is threadedly connected to the lower grinding seat 2. The upper grinding cover 1 covers the lower grinding seat 2 and forms a chamber 100. A transmission component 3 is installed in the chamber 100. A grinding blade 4 is installed at the bottom of the lower grinding seat 2 and is fixed on the lower grinding seat 2. A grinding cavity 200 is formed between the transmission component 3, the grinding blade 4 and the lower grinding seat 2. The grinding cavity 200 can hold nuts and other hard objects. A support flange 21 is provided on the inner side wall of the lower grinding seat 2. The support flange 21 is a convex ring and is integrally formed on the inner wall of the lower grinding seat 2. The grinding blade 4 is fixed on the support flange 21. A connector 5 connected to a power source is installed on the upper grinding cover 1. The lower end of the connector 5 extends into the chamber 100 and is connected to the transmission component 3 and drives it to rotate synchronously. The transmission component 3 rotates and drives the object to be ground to move on the grinding blade 4, thereby grinding the object to be ground. The grinding blade 4 of this grinding head is directly mounted on the support flange 21 at the bottom of the lower grinding base 2, which is simple in structure, low in cost, and has high assembly efficiency. Using connector 5 as a conversion component, the external drive source drives the transmission assembly 3 to rotate, thereby achieving grinding. This avoids the external drive source directly driving the upper grinding cover 1 to rotate, improving the safety and reliability of the grinding head. Simultaneously, the grinding cavity 200 formed between the transmission assembly 3, the grinding blade 4, and the lower grinding base 2 allows for more concentrated material grinding, improving grinding efficiency and stability.

[0045] The transmission assembly 3 includes a clamping member 31 and a transmission member 32. One end of the transmission member 32 is connected to the connector 5 and rotates synchronously with it. The other end of the transmission member 32 is connected to the clamping member 31 and rotates synchronously with it. An elastic member 6 is installed between the transmission member 32 and the clamping member 31. The elastic member 6 provides clamping force to the clamping member 31, so that the clamping member 31 can press the workpiece to be ground at all times. The elastic member 6 can apply pressure to the clamping member 31, thereby ensuring that the clamping member 31 can press the workpiece to be ground onto the grinding blade 4 at all times, so that the material is continuously and stably ground in the grinding chamber 200, avoiding insufficient grinding due to material loosening. At the same time, the buffering effect of the elastic member 6 can reduce the impact during the transmission process, improve the service life of the components, and achieve efficient power transmission through the connection between the transmission member 32 and the connector 5. The structure is reasonably designed and the grinding effect is better.

[0046] The clamping member 31 has a mounting cavity 311, and the elastic member 6 is disposed in the mounting cavity 311. One end of the elastic member 6 abuts against the transmission member 32, and the other end abuts against the bottom of the mounting cavity 311. The elastic member 6 is a spring, and its upper end is fitted onto the transmission member 32. This grinding head's clamping member 31 has a mounting cavity 311, and the elastic member 6 is disposed in the mounting cavity 311. One end of the elastic member 6 abuts against the transmission member 32, and the other end abuts against the bottom of the mounting cavity 311. This structure positions and installs the elastic member 6 through the mounting cavity 311, ensuring that the elastic member 6 stably applies pressure to the clamping member 31, thereby ensuring that the clamping member 31 continuously presses the workpiece onto the grinding blade 4, making the material grinding more thorough. At the same time, the mounting cavity 311 restricts the range of motion of the elastic member 6, preventing the elastic member 6 from shifting or falling off during transmission, enhancing the stability and reliability of the transmission assembly 3. Furthermore, this structural design facilitates the installation and replacement of the elastic member 6, improving the assembly efficiency and maintenance convenience of the grinding head.

[0047] The inner wall of the mounting cavity 311 is provided with an axially extending guide rail 312. The guide rail 312 is integrally formed on the inner wall of the mounting cavity 311. There are two guide rails 312 and they are evenly distributed on the mounting cavity 311. The transmission component 32 is provided with a guide notch 321. There are two guide notches 321 and they are evenly distributed on the transmission component 32. The guide notch 321 is adapted to the guide rail 312 so that the transmission component 32 can move axially along the guide rail 312. The cooperation between the guide rail 312 and the guide notch 321 provides precise guidance for the axial movement of the transmission component 32, ensuring that the pressure of the elastic component 6 can be stably transmitted to the clamping component 31 along the axial direction. This ensures that the clamping component 31 always presses the workpiece to be ground evenly on the grinding blade 4, avoiding uneven pressure caused by the offset of the transmission component 32. At the same time, the axial movement design can adapt to the grinding requirements of materials of different thicknesses, enhancing the adaptability of the grinding head to materials. Furthermore, the limiting effect of the guide rail 312 and the guide notch 321 can reduce the radial sway of the transmission component 32, improve the stability of the operation of the transmission component 3, and ensure the continuous and efficient grinding process.

[0048] The lower end of the transmission component 32 extends into the mounting cavity 311. A limiting block 313 is provided at the port of the mounting cavity 311 to restrict the upward movement of the transmission component 32. There are at least two limiting blocks 313, evenly distributed on the clamping component 31. The limiting blocks 313 prevent the transmission component 32 from disengaging from the clamping component 31, preventing the transmission component 32 from disengaging from the mounting cavity 311 due to excessive upward movement, ensuring that the elastic component 6 is always in an effective working state, continuously providing pressure to the clamping component 31 to press the workpiece onto the grinding blade 4.

[0049] The transmission component 32 is a single piece, comprising a transmission shaft portion 322 and a cover plate portion 323. The outer diameter of the cover plate portion 323 is larger than the outer diameter of the transmission shaft portion 322. The transmission shaft portion 322 is mounted on the cover plate portion 323, and the connector 5 is connected to the transmission shaft portion 322. The cover plate portion 323 extends into the clamping component 31. This single-piece design enhances the structural strength of the transmission component 32 and avoids assembly errors or transmission failures caused by a split structure. The extension of the cover plate portion 323 into the clamping component 31 increases the contact area with the elastic element 6, allowing the pressure of the elastic element 6 to be evenly transmitted to the clamping component 31. This ensures that the clamping component 31 stably presses the workpiece onto the grinding blade 4, and the connection between the transmission shaft portion 322 and the connector 5 enables efficient power transmission, improving the reliability and grinding efficiency of the transmission component 3.

[0050] The lower end face of the cover plate 323 is provided with a downwardly protruding lower positioning ring 324, which is integrally formed on the cover plate 323. The elastic element 6 is a spring, and the upper end of the elastic element 6 is fitted onto the lower positioning ring 324. The lower positioning ring 324 precisely positions the elastic element 6, preventing the spring from shifting or tilting during installation and operation, and ensuring that the pressure of the elastic element 6 can be stably transmitted axially to the clamping element 31, so that the clamping element 31 continuously and evenly presses the workpiece to be ground onto the grinding blade 4.

[0051] A connecting post 325 is integrally formed on the top of the drive shaft 322, and the connecting post 325 and the drive shaft 322 are on the same axis. The connecting post 325 is polygonal in shape, while the drive shaft 325 is cubical. A bushing 51 is provided at the lower end of the connector 5, and the inner hole of the bushing 51 is also polygonal. The bushing 51 is fitted with the connecting post 325. The cooperation between the polygonal connecting post 325 and the polygonal bushing 51 can achieve a circumferential fixed connection between the connector 5 and the drive shaft 322, ensuring that slippage will not occur during power transmission, so that the transmission component 32 and the connector 5 rotate synchronously, thereby efficiently driving the clamping component 31 to grind the material. At the same time, the polygonal connection method is easy to disassemble and assemble, and a reliable connection can be achieved without additional fasteners, improving the assembly efficiency of the grinding head. Moreover, this structure can withstand a large torque, enhancing the transmission stability and reliability of the transmission component 3, and ensuring the continuous and efficient operation of the grinding process.

[0052] The upper grinding cover 1 is provided with an inwardly protruding boss 11. The boss 11 is a cylindrical boss. The lower end of the bushing 51 passes through the boss 11 and is connected to the transmission shaft part 322. The upper end of the transmission shaft part 322 is provided with an upwardly protruding upper positioning ring 326. The upper positioning ring 326 is integrally formed on the transmission shaft part 322 and surrounds the boss 11. The boss 11 provides mounting support for the bushing 51, ensuring the coaxiality of the connection between the bushing 51 and the transmission shaft 322, and preventing eccentric shaking during power transmission. At the same time, the upper positioning ring 326 surrounds the boss 11 to form an annular limiting structure, which can limit the axial displacement range of the transmission shaft 322, prevent the transmission component 32 from detaching upward from the bushing 51, ensure the stable connection between the joint 5 and the transmission component 32, and enable efficient power transmission to the transmission assembly 3. Furthermore, the cooperation between the boss 11 and the upper positioning ring 326 can enhance the assembly stability between the upper grinding cover 1 and the transmission component 32, reduce vibration during the grinding process, and improve the reliability and stability of the grinding head operation.

[0053] A pressure sleeve 7 is tightly fitted inside the lower grinding base 2. The pressure sleeve 7 is threadedly fastened to the lower grinding base 2 and presses the grinding blade 4 against the support flange 21. The pressure sleeve 7 firmly fixes the grinding blade 4 to the support flange 21, which can effectively prevent the grinding blade 4 from loosening or shifting during the grinding process, ensuring the stability and consistency of the grinding effect. At the same time, the fastening method of the pressure sleeve 7 facilitates the installation and removal of the grinding blade 4, improving the assembly efficiency and maintenance convenience of the grinding head. Furthermore, the pressure sleeve 7 evenly presses the grinding blade 4, making it subject to balanced force, reducing blade wear caused by excessive local force, and extending the service life of the grinding blade 4.

[0054] The clamping member 31 has an outwardly turned limiting flange 314 at its port. The limiting flange 314 is annular. The clamping member 31 extends into the pressure sleeve 7. When the clamping member 31 moves to its lowest position, the limiting flange 314 is limited to the top of the pressure sleeve 7. The cooperation between the limiting flange 314 and the top of the pressure sleeve 7 can precisely limit the downward displacement range of the clamping member 31, avoiding excessive downward pressure from the clamping member 31 which would cause excessive force on the grinding blade 4 and damage. At the same time, it ensures that the clamping member 31 can effectively press the workpiece to be ground onto the grinding blade 4, ensuring the grinding effect.

[0055] The bottom surface of the clamping member 31 is provided with a plurality of positioning grooves 315, totaling eight. These eight positioning grooves 315 are evenly distributed on the bottom surface of the clamping member 31 and are inclined. The positioning grooves 315 are used to position the workpiece to be ground, preventing slippage. The positioning grooves 315 can form multi-point positioning and compression on the workpiece within the grinding chamber, ensuring uniform force and stable pressing of the material onto the grinding blade 4, effectively preventing slippage and avoiding insufficient grinding due to slippage. Simultaneously, the evenly distributed positioning grooves 315 increase the contact area between the clamping member 31 and the material, improving the clamping effect. Furthermore, the design of the positioning grooves 315 can guide the material flow to the grinding blade 4 during the grinding process, optimizing the grinding path and enhancing grinding efficiency and uniformity. In addition, this structural design is simple, easy to manufacture, and can effectively improve the practicality and reliability of the grinding head.

[0056] The grinding blade 4 is provided with several rows of scraper units, all of which are arranged in a circumferential array on the grinding blade 4. Each row of scraper units includes a number of through holes 41, and each through hole 41 has an upward-facing grinding blade 42 at its edge. The circumferential array of scraper units can form a uniform grinding area, allowing the material to be ground in all directions within the grinding chamber 200, thereby improving grinding efficiency and uniformity.

[0057] The upper end of the connector 5 is provided with an interface groove 52. At least two evenly distributed positioning blocks 53 are provided on the inner wall of the interface groove 52. There are four positioning blocks 53 in total. A positioning post 54 protrudes upwards in the middle of the interface groove 52. The positioning post 54 is used to engage with an external power source. The positioning blocks 53 can form circumferential positioning with the connector of the external power source, ensuring the stability of the connection between the connector 5 and the power source and preventing slippage during power transmission.

[0058] Example 2

[0059] Example 2 is basically the same as Example 1, except that the upper grinding cover 1 and the lower grinding seat 2 are engaged and connected, and the pressure sleeve 7 is threadedly fastened to the lower grinding seat 2.

[0060] Example 3

[0061] Example 3 is basically the same as Example 1, except that the upper grinding cover 1 has a downwardly recessed mounting groove 12 in the middle, and an upwardly protruding slide rail 13 on the bottom surface of the mounting groove 12. The slide rail 13 is annular in shape, and the connector 5 is installed in the mounting groove 12 and contacts the slide rail 13. The mounting groove 12 provides installation space for the connector 5, which facilitates the positioning and assembly of the connector 5 with the upper grinding cover 1. At the same time, the contact between the slide rail 13 and the connector 5 can reduce the frictional resistance when the connector 5 rotates, making the connector 5 rotate more smoothly, thereby efficiently driving the transmission component 3 to operate.

Claims

1. A material grinding head, comprising an upper grinding cover (1) and a lower grinding seat (2), wherein the upper grinding cover (1) covers the lower grinding seat (2) and forms a chamber (100), a transmission assembly (3) is installed in the chamber (100), and a grinding blade (4) is installed at the bottom of the lower grinding seat (2), wherein a grinding cavity (200) is formed between the transmission assembly (3), the grinding blade (4), and the lower grinding seat (2), characterized in that: The inner wall of the lower grinding seat (2) is provided with a support flange (21), the grinding blade (4) is fixed on the support flange (21), and the upper grinding cover (1) is provided with a connector (5) connected to the power source. The lower end of the connector (5) extends into the chamber (100) and is connected to the transmission assembly (3) to drive it to rotate synchronously.

2. The material grinding head according to claim 1, characterized in that: The transmission assembly (3) includes a clamping member (31) and a transmission member (32). One end of the transmission member (32) is connected to the connector (5) and rotates synchronously with it. The other end of the transmission member (32) is connected to the clamping member (31) and rotates synchronously with it. An elastic member (6) is installed between the transmission member (32) and the clamping member (31).

3. The material grinding head according to claim 2, characterized in that: The clamping member (31) is provided with a mounting cavity (311), and the elastic member (6) is disposed in the mounting cavity (311). One end of the elastic member (6) rests on the transmission member (32), and the other end rests on the bottom of the mounting cavity (311).

4. The material grinding head according to claim 3, characterized in that: The inner wall of the mounting cavity (311) is provided with an axially extending guide rail (312), and the transmission component (32) is provided with a guide notch (321). The guide notch (321) is adapted to the guide rail (312) so that the transmission component (32) moves axially along the guide rail (312).

5. The material grinding head according to claim 3, characterized in that: The lower end of the transmission component (32) extends into the mounting cavity (311). The port of the mounting cavity (311) is provided with a limiting block (313) for restricting the upward movement of the transmission component (32). The number of limiting blocks (313) is at least two and they are evenly distributed on the clamping component (31).

6. The material grinding head according to claim 2, characterized in that: The transmission component (32) is an integral piece. The transmission component (32) includes a transmission shaft part (322) and a cover plate part (323). The outer diameter of the cover plate part (323) is larger than the outer diameter of the transmission shaft part (322). The transmission shaft part (322) is located on the cover plate part (323). The joint (5) is connected to the transmission shaft part (322). The cover plate part (323) extends into the clamping member (31).

7. The material grinding head according to claim 6, characterized in that: The lower end face of the cover plate (323) is provided with a downwardly protruding lower positioning ring (324), and the elastic element (6) is a spring, with the upper end of the elastic element (6) fitted on the lower positioning ring (324).

8. The material grinding head according to claim 6, characterized in that: The top of the drive shaft (322) is provided with a connecting post (325), which is polygonal in shape. The lower end of the connector (5) is provided with a bushing (51), which is also polygonal in shape. The bushing (51) is adapted to the connecting post (325).

9. The material grinding head according to claim 8, characterized in that: The upper grinding cover (1) is provided with an inwardly protruding boss (11). The lower end of the bushing (51) passes through the boss (11) and is connected to the transmission shaft part (322). The upper end of the transmission shaft part (322) is provided with an upwardly protruding upper positioning ring (326), which surrounds the boss (11).

10. The material grinding head according to claim 2, characterized in that: The lower grinding base (2) has a pressure sleeve (7) inside. The pressure sleeve (7) is fastened to the lower grinding base (2) and presses the grinding blade (4) onto the support flange (21).

11. The material grinding head according to claim 10, characterized in that: The clamping member (31) has an outwardly folded limiting flange (314) at its port. The clamping member (31) extends into the pressure sleeve (7). When the clamping member (31) moves to its lowest position, the limiting flange (314) is limited to the top of the pressure sleeve (7).

12. The material grinding head according to claim 1, characterized in that: The upper grinding cover (1) has a downward recessed mounting groove (12) in the middle, and an upward protruding slide rail (13) on the bottom surface of the mounting groove (12). The connector (5) is installed in the mounting groove (12) and contacts the slide rail (13).

13. The material grinding head according to claim 2, characterized in that: The bottom surface of the clamping member (31) is provided with a number of positioning grooves (315), and the multiple positioning grooves (315) are evenly distributed on the bottom surface of the clamping member (31).

14. The material grinding head according to any one of claims 1-13, characterized in that: The grinding blade (4) is provided with several rows of scraper units. All scraper units are arranged in a circumferential array on the grinding blade (4). Each row of scraper units includes several through holes (41). Each through hole (41) has an upward-facing grinding blade (42) at its edge.

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