A cassava-specific crusher

Abstract

This application discloses a cassava-specific grinder, relating to the technical field of grinding equipment. The grinder includes a body with a grinding chamber inside, a feed inlet communicating with the grinding chamber at the top, and a discharge outlet communicating with the grinding chamber at the bottom. A rotating shaft is located within the grinding chamber and rotatably connected to the body, with multiple support wheels evenly spaced along its outer circumference. A drive unit is located within the body and drives the rotating shaft to rotate. Support shafts are evenly spaced along the circumference of the support wheels. Multiple coarse cutters are evenly spaced along the support shafts. Multiple screening shafts are located within the body between the support shafts and the discharge outlet, and are evenly spaced along the circumference. A fine cutting component is located within the body; when the coarse cutters are away from the screening shafts, the fine cutting component grinds the cassava. This application can reduce the possibility of screen breakage during the grinding process.

Description

Technical Field

[0001] This application relates to the technical field of crushing equipment, and in particular to a cassava crusher. Background Technology

[0002] Cassava, also known as tapioca or cassava sweet potato, is the third largest food crop in tropical regions and is known as the "King of Starch." During processing, cassava is usually crushed to increase its surface area, allowing it to better contact with solvents and improving the extraction rate of starch. This also allows for more complete utilization of the starch and other nutrients in cassava, thus increasing its overall utilization rate.

[0003] Cassava is typically processed using a hammer mill. The inner sleeve of the hammer mill includes a perforated screen and a hammer assembly. During the crushing process, the hammer assembly and the perforated screen work together to crush the cassava. The crushed cassava fragments are then screened out by the perforated screen.

[0004] However, cassava chunks are relatively large and have a certain degree of hardness. When crushing, the hammer assembly strikes the cassava chunks as it passes through the perforated screen. At this time, the cassava chunks are prone to breaking the perforated screen, requiring frequent maintenance. Summary of the Invention

[0005] To reduce the possibility of breaking the screen during the crushing process, this application provides a cassava-specific crusher.

[0006] This application provides a cassava-specific crusher, which adopts the following technical solution:

[0007] A cassava-specific crusher, including

[0008] The machine body has a grinding chamber inside, and the top of the machine body is provided with a feed inlet that communicates with the grinding chamber, and the bottom of the machine body is provided with a discharge outlet that communicates with the grinding chamber.

[0009] A rotating shaft is located inside the crushing chamber and is rotatably connected to the machine body. Multiple support wheels are evenly spaced on the outer periphery of the rotating shaft.

[0010] A driving component is disposed on the machine body, and the driving component drives the rotating shaft to rotate;

[0011] Support shafts are evenly spaced along the circumference of the support wheels;

[0012] Multiple coarse cutters are evenly spaced on the support shaft;

[0013] A screening shaft is disposed on the machine body and located between the support shaft and the discharge port. There are multiple screening shafts and they are evenly spaced along the circumference.

[0014] A fine cutting component is disposed on the machine body. When the coarse cutting blade is away from the screening shaft, the fine cutting component grinds the cassava.

[0015] By adopting the above technical solution, during processing, cassava is fed into the crushing chamber through the inlet, and the drive unit is activated simultaneously. The rotating shaft then rotates, driving the coarse cutter to coarsely cut the cassava pieces. Simultaneously, the rotating shaft continues to rotate, causing the fine cutting component to finely cut the cassava pieces, further improving the crushing effect. The entire process is simple; by processing the cassava pieces through coarse and fine cutting, the possibility of damaging the screening shaft during cassava processing is greatly reduced.

[0016] Optionally, the fine cutting assembly includes a fine cutting plate, a fine cutting blade, and a fine cutting seat;

[0017] The fine cutting seat is disposed on the wall of the crushing chamber, and the fine cutting seat is located near the screening shaft;

[0018] The fine cutting plate is disposed on the coarse cutting blade and corresponds to it one by one; there are multiple fine cutting blades and they are evenly spaced on the fine cutting plate.

[0019] When the fine cutting plate passes through the fine cutting seat, a fine cutting space is formed between the fine cutting plate and the fine cutting seat, at which time the fine cutting knife cuts the cassava in the fine cutting space.

[0020] By adopting the above technical solution, when the fine cutting plate passes through the fine cutting seat, the fine cutting blade finely cuts the coarsely cut cassava chunks, further reducing the volume of the cassava chunks.

[0021] Optionally, the coarse cutter is rotatably connected to a connecting shaft perpendicular to the support shaft on the side away from the support shaft, and the fine cutter is rotatably connected to the connecting shaft;

[0022] The machine body is equipped with a control component. When the fine cutting plate passes the fine cutting seat, the control component controls the fine cutting plate to flip so that it is perpendicular to the coarse cutting blade.

[0023] When the fine cutting plate moves away from the fine cutting seat, the control component controls the fine cutting plate to flip so that it is parallel to the coarse cutting blade.

[0024] By adopting the above technical solution, the control component controls the fine cutting plate to flip so that it is parallel to the coarse cutting blade, which helps to increase the coarse cutting range and improve the coarse cutting effect.

[0025] Optionally, the control assembly includes a control shaft, a control belt, a control gear, a control rack, and a control spring;

[0026] The control shaft rotates within the support shaft, and the control belt links the control shaft and the connecting shaft.

[0027] The control gear is disposed on the outer periphery of the control shaft and rotates on the support shaft;

[0028] The control rack slides on the support shaft, and the control rack meshes with the control gear;

[0029] The crushing chamber wall has a circumferential groove for the control rack to slide in, and the control spring is disposed on the support shaft. The control spring pushes the control rack to protrude into the groove.

[0030] When the control rack slides into the groove, the fine cutting plate is parallel to the coarse cutting blade;

[0031] The machine body has a guide surface that guides the control rack to slide out of the groove. When the control rack slides on the wall of the crushing chamber, the fine cutting plate is perpendicular to the coarse cutting blade.

[0032] By adopting the above technical solution, the control shaft rotates, which causes the control belt to drive the connecting shaft, thus facilitating the flipping of the fine cutting plate.

[0033] Optionally, a sliding block is provided on the side of the control rack away from the control spring, and the sliding block slides on the groove wall and the crushing chamber wall.

[0034] By adopting the above technical solution, the rack is equipped with a sliding block, which helps to reduce the friction generated during sliding.

[0035] Optionally, the sidewall of the fine-cutting plate is formed with a cutting edge.

[0036] By adopting the above technical solutions, the cutting effect of cassava can be improved.

[0037] Optionally, the crushing chamber wall is provided with a plurality of auxiliary cutters at uniform intervals along the extension direction of the support shaft;

[0038] The auxiliary cutter is located near the feed inlet;

[0039] The auxiliary cutter and the coarse cutter are staggered. When the coarse cutter moves toward the screening axis, each coarse cutter passes between two adjacent auxiliary cutters.

[0040] By adopting the above technical solution, the coarse cutter and the auxiliary cutter work together to improve the coarse cutting effect.

[0041] Optionally, fine grinding blocks are evenly spaced on the side of the fine cutting seat facing the rotating shaft, and the fine grinding blocks are offset from the fine cutting blade.

[0042] By adopting the above technical solution, the fine grinding blocks and fine cutting plates work together to improve the crushing effect of cassava blocks.

[0043] In summary, this application includes at least one of the following beneficial effects:

[0044] 1. During processing, the drive unit is activated, causing the rotating shaft to rotate and drive the coarse cutter to coarsely cut the cassava chunks. At the same time, the fine cutting component finely cuts the cassava chunks, further improving the crushing effect and greatly reducing the possibility of damaging the screening shaft during cassava chunk processing;

[0045] 2. The roughing blade and the auxiliary blade work together to improve the roughing effect. Attached Figure Description

[0046] Figure 1 This is a schematic diagram of the external structure of an embodiment of this application;

[0047] Figure 2 This is a schematic diagram of the internal structure of an embodiment of this application;

[0048] Figure 3 yes Figure 2 Enlarged schematic diagram of part A;

[0049] Figure 4 This is a schematic diagram of the internal cross-section of an embodiment of this application;

[0050] Figure 5 yes Figure 2 Enlarged schematic diagram of part B;

[0051] Figure 6 yes Figure 4 Enlarged schematic diagram of part C;

[0052] Figure 7 This is a cross-sectional schematic diagram of the cassava crushing process in an embodiment of this application;

[0053] Figure 8 This is a cross-sectional schematic diagram of the chute structure in an embodiment of this application;

[0054] Figure 9 yes Figure 8 Enlarged schematic diagram of part D.

[0055] Reference numerals in the attached diagram: 1. Machine body; 11. Feed inlet; 12. Discharge outlet; 13. Crushing chamber; 14. Slide groove; 15. Guide surface; 16. Auxiliary cutter; 2. Rotating shaft; 21. Support wheel; 3. Support shaft; 4. Coarse cutter; 41. Connecting shaft; 5. Screening shaft; 6. Fine cutting plate; 61. Fine cutter; 62. Fine cutting seat; 63. Cutting blade; 64. Fine grinding block; 7. Control shaft; 71. Control belt; 72. Control gear; 73. Control rack; 731. Sliding block; 74. Control spring; 8. Drive motor. Detailed Implementation

[0056] The following is in conjunction with the appendix Figure 1-9 This application will be described in further detail.

[0057] This application discloses a cassava-specific grinder. See also... Figure 1 and Figure 2 The cassava-specific crusher includes a body 1, and a cylindrical crushing chamber 13 is formed inside the body 1. The central axis of the crushing chamber 13 extends in the horizontal direction.

[0058] The top of the machine body 1 has a feed inlet 11, which extends vertically and is connected to the crushing chamber 13. The crushed cassava enters the crushing chamber 13 through the feed inlet 11. The bottom of the machine body 1 has a discharge outlet 12, which extends vertically and is connected to the crushing chamber 13. The crushed cassava is discharged from the crushing chamber 13 through the discharge outlet 12.

[0059] See Figure 2 and Figure 3 The cassava-specific crusher also includes a rotating shaft 2, a coarse cutter 4, a support wheel 21, and a support shaft 3; the rotating shaft 2 is rotatably connected to the machine body 1 and located in the crushing chamber 13, and the central axis of the rotating shaft 2 coincides with the central axis of the crushing chamber 13.

[0060] The support wheel 21 has a circular structure and is fixed to the outer periphery of the rotating shaft 2. There are multiple support wheels 21, which are evenly spaced along the central axis of the rotating shaft 2, and the two outermost support wheels 21 are in sliding contact with the cavity wall of the crushing chamber 13.

[0061] Support shaft 3 is fixed to support wheel 21. Multiple support shafts 3 are evenly spaced circumferentially, and their central axis is parallel to the central axis of rotating shaft 2. Coarse cutters 4 are fixed to the outer periphery of support shaft 3. Multiple coarse cutters 4 are evenly spaced along the central axis of support shaft 3. The length direction of the coarse cutters 4 is perpendicular to both support shaft 3 and rotating shaft 2. Each coarse cutter 4 has a rectangular plate-like structure with sharp edges formed on its sidewalls. When rotating shaft 2 rotates, support wheel 21 drives support shaft 3 to rotate, at which point the coarse cutters 4, driven by support shaft 3, coarsely cut the cassava entering the crushing chamber 13.

[0062] The cassava-specific crusher also includes a drive unit and a screening shaft 5. The drive unit is a drive motor 8, which is fixed to the outer wall of the machine body 1. The output shaft of the drive motor 8 is rotatably connected to the machine body 1, and is also fixedly connected to the rotating shaft 2. When the drive motor 8 starts, its output shaft rotates, causing the rotating shaft 2 to rotate. At this time, the coarse cutter 4 cuts the cassava.

[0063] See Figure 3 and Figure 4The screening shaft 5 is fixed to the machine body 1 and located inside the crushing chamber 13. The screening shaft 5 is a circular shaft structure located below the rotating shaft 2 and near the discharge port 12. There are multiple screening shafts 5 arranged circumferentially, and the lines connecting the screening shafts 5 form an arc. The screening shafts 5 cooperate with each other to form a screening mesh, and there is a gap between two adjacent screening shafts 5. The coarsely cut cassava pieces cannot pass through and are placed on the screening mesh, waiting for the next cut.

[0064] To improve the coarse cutting effect of cassava chunks, the machine body 1 is equipped with auxiliary cutters 16, which are fixed on the wall of the crushing chamber 13 and located near the feed inlet 11. Multiple auxiliary cutters 16 are evenly spaced along the central axis of the rotating shaft 2, and are staggered with the coarse cutters 4. When the rotating shaft 2 rotates and drives the coarse cutters 4 past the auxiliary cutters 16, each coarse cutter 4 is positioned between two adjacent auxiliary cutters 16. At this time, the blades of the coarse cutters 4 and auxiliary cutters 16 face each other. When the cassava chunks from the feed inlet 11 fall onto the auxiliary cutters 16 after being driven by the coarse cutters 4, the coarse cutters 4 and auxiliary cutters 16 cooperate to further reduce the volume of the coarsely cut cassava chunks.

[0065] The cassava-specific crusher also includes a fine cutting assembly, which includes a fine cutting plate 6, a fine cutting blade 61, and a fine cutting seat 62. The fine cutting plate 6 has a rotating groove on the side away from the support shaft 3. The fine cutting plate 6 is rotatably connected to a connecting shaft 41, which is located in the rotating groove, and the central axis of the connecting shaft 41 is perpendicular to the length direction of the coarse cutting blade 4.

[0066] The fine cutting plate 6 is fixed to the outer periphery of the connecting shaft 41. The fine cutting plate 6 can be flipped to a state perpendicular to the coarse cutting blade 4. At this time, the length direction of the fine cutting blade 61 is parallel to the central axis of the support shaft 3. The fine cutting plate 6 has a cuboid structure. There are multiple fine cutting plates 6, each corresponding to one of the coarse cutting blades 4. When the length directions of the fine cutting plate 6 and the coarse cutting blade 4 are parallel, the fine cutting plate 6 and the coarse cutting blade 4 are in the same plane.

[0067] The fine cutting seat 62 is fixed to the wall of the crushing chamber 13 and is located near the screening shaft 5. The top of the fine cutting seat 62 is inclined to form a sliding surface. The cassava pieces that enter the crushing chamber 13 from the feed inlet 11 and fall onto the top of the fine cutting seat 62 slide along the sliding surface toward the screening shaft 5.

[0068] A fine cutter 61 is fixed to the fine cutting plate 6. There are multiple fine cutters 61 arranged at even intervals, and the length direction of the fine cutter 61 is perpendicular to the length direction of the fine cutting plate 6. The machine body 1 is provided with a control component for controlling the flipping of the fine cutting plate 6.

[0069] When the fine cutting plate 6 moves with the coarse cutting blade 4 to a position close to the fine cutting seat 62, the control component controls the fine cutting plate 6 to flip to a state perpendicular to the coarse cutting blade 4; then, when the fine cutting plate 6 passes the fine cutting seat 62, a fine cutting space is formed between the fine cutting plate 6 and the side of the fine cutting seat 62 near the rotating shaft 2. When the coarse cutting blade 4 and the fine cutting plate 6 rotate with the rotating shaft 2, they agitate the cassava blocks, causing some of the cassava blocks to fall onto the fine cutting seat 62; then, when the fine cutting plate 6 passes the fine cutting seat 62, the cassava blocks are located in the fine cutting space. At this time, the fine cutting blade 61 finely cuts the cassava blocks, further reducing the size of the cassava fragments. After multiple cuts, the cassava fragments can pass through the gap between adjacent screening shafts 5 and then be discharged from the discharge port 12.

[0070] See Figure 5 A cutting blade 63 is fixedly connected to the side wall of the fine cutting plate 6. When the fine cutting plate 6 moves away from the fine cutting seat 62, the control component controls the fine cutting plate 6 to flip so that it is on the same plane as the coarse cutting blade 4. At this time, the cutting blade 63 on the fine cutting plate 6 cooperates with the coarse cutting blade 4 to cut the cassava block, increase the cutting range, and further improve the cutting effect.

[0071] See Figure 6 The control components include a control shaft 7, a control belt 71, a control gear 72, a control rack 73, and a control spring 74. The control shaft 7 is rotatably connected inside the support shaft 3. There are multiple control shafts 7, which are spaced apart along the central axis of the support shaft 3. The control shafts 7 and the connecting shaft 41 correspond to each other and are parallel to each other.

[0072] The control belt 71 is a chain structure with its ends connected. The control belt 71 passes through the support shaft 3 and the coarse cutter 4, and is sleeved on the outer periphery of the control shaft 7 and the connecting shaft 41. Multiple connecting teeth are evenly spaced along the circumference of the outer periphery of the control shaft 7 and the connecting shaft 41. The connecting teeth mesh with the control belt 71, so that the connecting shaft 41 and the support shaft 3 can be linked together through the control belt 71.

[0073] The control gear 72 corresponds one-to-one with the control shaft 7 and is fixed on the outer periphery of the control shaft 7. The control gear 72 rotates on the support shaft 3. The control rack 73 corresponds one-to-one with the support shaft 3 and slides on the support shaft 3. The control rack 73 and the control gear 72 mesh with each other.

[0074] See Figure 7 and Figure 8 A groove 14 is formed on the wall of the crushing chamber 13. The groove 14 is an arc groove structure that extends circumferentially with the rotating shaft 2 as the center. The groove 14 corresponds to the control rack 73.

[0075] The control spring 74 corresponds one-to-one with the control rack 73 and is installed inside the support shaft 3. One end of the control spring 74 abuts against the end of the control rack 73 away from the slide groove 14, and the other end of the control spring 74 abuts against the support shaft 3. A sliding block 731 is fixedly connected to the end of the control rack 73 away from the control spring 74. The side of the sliding block 731 away from the control rack 73 has an arc surface structure, and the sliding block 731 slides on the side wall of the slide groove 14 away from the groove opening.

[0076] When the control spring 74 is released elastically, it pushes the control rack 73 to slide into the groove 14 until the sliding block 731 abuts against the groove wall on the side of the groove 14 away from the groove opening. At this time, the fine cutting plate 6 and the coarse cutting blade 4 are in the same plane.

[0077] See Figure 7 and Figure 9 When the rotating shaft 2 rotates, the control rack 73 drives the sliding block 731 to slide on the wall of the groove 14. A guide surface 15 is formed inclined on the wall of the crushing chamber 13. The guide surface 15 is located near the fine cutting seat 62 and connects the groove 14 and the wall of the crushing chamber 13. When the control rack 73 moves with the support shaft 3 to a position near the fine cutting seat 62, the rotating shaft 2 continues to rotate. At this time, the control rack 73 drives the sliding block 731 to slide on the guide surface 15 until the sliding block 731 slides out of the groove 14 and slides on the wall of the crushing chamber 13. At this time, the control rack 73 and the sliding block 731 are pushed into the support shaft 3. When the control rack 73 slides into the support shaft 3, the control rack 73 drives the control gear 72 to rotate. At this time, the control shaft 7 drives the connecting shaft 41 to rotate through the control belt 71, so that the fine cutting plate 6 enters the flipping state until the fine cutting plate 6 flips to a state perpendicular to the coarse cutting blade 4. At the same time, the control spring 74 enters the elastic compression state. Furthermore, when the fine cutting plate 6 drives the fine cutting knife 61 to cut the cassava chunks, if the cassava chunks are large, the fine cutting plate 6 can be pushed by the cassava chunks to rotate in the direction of the rotating shaft 2, so that the size of the fine cutting space can adapt to the size of the cassava chunks.

[0078] See Figure 3 and Figure 5 To further improve the cassava chunk crushing effect, a fine grinding block 64 is fixedly connected to the side of the fine cutting seat 62 facing the rotating shaft 2. Multiple sets of fine grinding blocks 64 are evenly spaced along the central axis of the rotating shaft 2. Each set of fine grinding blocks 64 is staggered with the fine cutting blade 61. Each set of fine grinding blocks 64 has multiple blocks, evenly spaced along the direction perpendicular to the central axis of the rotating shaft 2. When the fine cutting plate 6 moves past the fine cutting seat 62, each fine cutting blade 61 passes between two adjacent sets of fine grinding blocks 64. At this time, the cassava chunks cut by the fine cutting blade 61 fall between the fine grinding blocks 64 on both sides and the fine cutting plate 6. The fine grinding blocks 64 and the fine cutting plate 6 then work together to grind the cassava chunks, further improving the degree of crushing.

[0079] The implementation principle of the cassava-specific crusher in this application embodiment is as follows:

[0080] During processing, cassava is fed into the crushing chamber 13 through the feed inlet 11, and the drive motor 8 is started simultaneously. The rotating shaft 2 rotates, driving the coarse cutter 4 to coarsely cut the cassava pieces. During coarse cutting, the rack 73 slides within the groove 14, ensuring the fine cutting plate 6 and the coarse cutter 4 are on the same plane, further improving the coarse cutting effect. The rotating shaft 2 continues to rotate until the fine cutting plate 6 approaches the fine cutting seat 62. At this point, the rack 73 slides into the support shaft 3, and the fine cutting plate 6 flips to a position perpendicular to the coarse cutter 4. Afterward, as the fine cutting plate 6 passes the fine cutting seat 62, the fine cutter 61, in conjunction with the fine cutting seat 62, finely cuts the cassava pieces, while simultaneously grinding them with the fine grinding block 64, further improving the crushing effect. The entire process is simple, processing the cassava pieces through coarse cutting, fine cutting, and fine grinding, greatly reducing the possibility of damage to the screening shaft 5 during processing.

[0081] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A cassava dedicated pulverizer characterized by: Comprising a machine body (1) internally formed with a crushing cavity (13), the machine body (1) being provided with a feeding port (11) at the top and a discharging port (12) at the bottom, both of which are in communication with the crushing cavity (13); a rotating shaft (2) located in the crushing cavity (13) and rotationally connected with the machine body (1), the rotating shaft (2) being uniformly and spacedly provided with a plurality of support wheels (21) on the outer periphery; a driving member provided on the machine body (1) to drive the rotating shaft (2) to rotate; a support shaft (3) uniformly and spacedly arranged along the circumference of the support wheel (21); a plurality of rough cutting knives (4) uniformly and spacedly arranged on the support shaft (3); a screening shaft (5) provided on the machine body (1) and located between the support shaft (3) and the discharging port (12), the screening shaft (5) being provided with a plurality of knives uniformly and spacedly arranged along the circumference; a fine cutting assembly provided on the machine body (1), the fine cutting assembly grinding cassava when the rough cutting knives (4) are away from the screening shaft (5); the fine cutting assembly comprising a fine cutting plate (6), a fine cutting knife (61) and a fine cutting seat (62); the fine cutting seat (62) being arranged on the cavity wall of the crushing cavity (13) and located close to the screening shaft (5); the fine cutting plate (6) being arranged on the rough cutting knife (4) one by one, the fine cutting knife (61) being provided with a plurality of knives uniformly and spacedly arranged on the fine cutting plate (6); a fine cutting space being formed between the fine cutting plate (6) and the fine cutting seat (62) when the fine cutting plate (6) passes through the fine cutting seat (62), the fine cutting knife (61) cutting cassava in the fine cutting space at this time; the rough cutting knife (4) being rotationally connected with a connecting shaft (41) perpendicular to the support shaft (3) on the side away from the support shaft (3), the fine cutting plate (6) being rotationally connected with the connecting shaft (41); the machine body (1) being provided with a control assembly, the control assembly controlling the fine cutting plate (6) to be flipped to be perpendicular to the rough cutting knife (4) when the fine cutting plate (6) passes through the fine cutting seat (62); the control assembly controlling the fine cutting plate (6) to be flipped to be parallel to the rough cutting knife (4) when the fine cutting plate (6) is away from the fine cutting seat (62); the control assembly comprising a control shaft (7), a control belt (71), a control gear (72), a control rack (73) and a control spring (74); the control shaft (7) being rotationally arranged in the support shaft (3), the control belt (71) being connected with the control shaft (7) and the connecting shaft (41); the control gear (72) being arranged on the outer periphery of the control shaft (7) and rotationally arranged in the support shaft (3); the control rack (73) being slidably arranged in the support shaft (3), the control rack (73) being engaged with the control gear (72); The cavity wall of the pulverizing cavity (13) is formed with a sliding groove (14) for the sliding of the control rack (73), the control spring (74) is arranged on the supporting shaft (3), and the control spring (74) pushes the control rack (73) to protrude into the sliding groove (14); When the control rack (73) slides into the sliding groove (14), the fine cutting plate (6) is parallel to the coarse cutting knife (4); The machine body (1) is formed with a guide surface (15) for guiding the control rack (73) to slide out of the sliding groove (14), and when the control rack (73) slides on the cavity wall of the pulverizing cavity (13), the fine cutting plate (6) is perpendicular to the coarse cutting knife (4).

2. A special cassava pulverizer according to claim 1, characterized in that: The control rack (73) is provided with a sliding block (731) on the side away from the control spring (74), and the sliding block (731) slides on the groove wall of the sliding groove (14) and the cavity wall of the pulverizing cavity (13).

3. A cassava specific pulverizer as claimed in claim 1, wherein: The side wall of the fine cutting plate (6) is formed with a cutting edge (63).

4. A cassava specific pulverizer as claimed in claim 1, wherein: The cavity wall of the pulverizing cavity (13) is uniformly and spacedly provided with a plurality of auxiliary cutting knives (16) along the extending direction of the supporting shaft (3); The auxiliary cutting knives (16) are located close to the feeding port (11); The auxiliary cutting knives (16) are arranged in a staggered manner between the coarse cutting knives (4), and when the coarse cutting knives (4) move towards the direction close to the screening shaft (5), each coarse cutting knife (4) passes between two adjacent auxiliary cutting knives (16) respectively.

5. A cassava specific pulverizer as claimed in claim 1, wherein: The fine grinding block (64) is arranged in a staggered manner with the fine cutting knife (61) on the side of the fine cutting seat (62) towards the rotating shaft (2).

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