A plant crushing device for improving extraction efficiency

Abstract

The present invention relates to the technical field of plant crushing, and specifically to a plant crushing device for improving extraction efficiency, comprising an equipment frame, a support platform arranged on the equipment frame, and a lower material bin installed on the support platform; the equipment frame is also provided with a grinding bin; the support platform is also provided with a crushing bin, the crushing bin comprises a feed frame, a crusher frame arranged on the feed frame, and a guide frame installed at the feed end of the feed frame, the crusher frame is passed into the lower material bin, and an upper jaw crusher and a lower jaw crusher are respectively arranged in the crusher frame, the lower jaw crusher is fixedly installed, the upper jaw crusher is movably installed, and a toggle mechanism for driving the upper jaw crusher to move is arranged on the side edge of the feed frame. The present invention makes the cell fluid release more thoroughly during the crushing process, and keeps the cell fluid and cell fiber relatively separated, so that it is convenient for more targeted and selective extraction in the subsequent extraction process.

Description

Technical Field

[0001] The invention relates to the technical field of plant crushing, in particular to a plant crushing device for improving extraction efficiency. Background Art

[0002] In the fields of modern biotechnology, pharmaceutical industry and food processing, plant extraction technology plays a vital role. These fields widely rely on the efficient and high-purity extraction of active ingredients from plants, such as pigments, antioxidants, and effective drug ingredients. A Chinese patent (authorization announcement number: CN221558590U) discloses a plant extraction stirring and crushing device, which enables the crushing and cutting tools inside the device to rotate in the opposite direction through meshing connection, thereby improving the crushing and cutting efficiency of the device for plant raw materials. At the same time, the device uses a threaded connection and a telescopic rod to enable the crushing and stirring part to move vertically up and down, thereby improving the crushing range of the device for plant raw materials.

[0003] Existing plant crushing equipment generally adopts the method of rotating cutters to crush. This patent improves the crushing range on this basis, but there are still certain defects in actual operation. Plant extraction generally extracts fluid substances in plant tissues to obtain effective ingredients such as essential oils, pigments, alkaloids, polysaccharides, etc. However, this method of rotating cutters will mix plant fluids and plant fibers when crushing tissues. The mixed substance obtained in this way itself is not conducive to the subsequent extraction process of effective ingredients. Summary of the invention

[0004] The purpose of the present invention is to provide a plant crushing device with improved extraction efficiency to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A plant crushing device for improving extraction efficiency comprises an equipment frame, a supporting platform arranged on the equipment frame and a lower material bin installed on the supporting platform; the equipment frame is also provided with a grinding bin, the grinding bin is located below the lower material bin and its top is connected to the lower material bin, and a discharge bin is provided at the bottom of the grinding bin; the supporting platform is also provided with a crushing bin, the end of the crushing bin is connected to the lower material bin; the crushing bin comprises a feed frame, a crusher frame arranged on the feed frame and a guide installed at the feed end of the feed frame The feeder frame is connected to the lower hopper, and the upper jaw crusher and the lower jaw crusher are respectively arranged in the crusher frame. The lower jaw crusher is fixedly installed, and the upper jaw crusher is movably installed. The side edge of the feeding frame is provided with a toggle mechanism for driving the upper jaw crusher to move; the grinding bin includes a grinding machine box, a turnover material port arranged on the top of the grinding machine box, and a grinding inner frame installed in the grinding machine box. The grinding machine box is connected to the bottom end of the lower hopper, and the discharge bin is arranged at the discharge end of the grinding inner frame.

[0007] As a further solution of the present invention: the lower jaw crushing mechanism includes a plurality of lower jaw roller shafts, lower jaw crushing rollers mounted on the lower jaw roller shafts, and lower jaw crushing teeth arranged on the lower jaw crushing rollers; the upper jaw crushing mechanism includes an upper jaw roller mounting seat, an upper jaw roller shaft arranged on the upper jaw roller mounting seat, an upper jaw crushing roller mounted on the upper jaw roller shaft, and upper jaw crushing teeth arranged on the upper jaw crushing roller; the upper jaw crushing roller is located above the lower jaw crushing roller, and the upper jaw crushing roller and the lower jaw crushing roller are arranged in a staggered manner.

[0008] As a further solution of the present invention: the toggle mechanism includes a displacement track arranged on the side wall of the feed rack frame and a sliding base installed on the displacement track, the upper jaw roller mounting seat is installed on the sliding base, a base plate transmission block is installed on the sliding base, a fixed base block is arranged at the bottom of the outer wall of the feed rack frame, and internal support springs are arranged between the two ends of the base plate transmission block and the corresponding fixed base blocks.

[0009] As a further solution of the present invention: the side edge of the outer wall of the feeding rack frame is also provided with a side fixed fence and a pneumatic adjusting cylinder installed on the side fixed fence, the pneumatic adjusting cylinder is externally connected to a pneumatic branch pipe, and a pneumatic adjusting bolt is also slidably installed on the pneumatic adjusting cylinder, the pneumatic adjusting bolt is driven by the pneumatic branch pipe, and the pneumatic adjusting bolt is fixedly connected to the pneumatic branch pipe.

[0010] As a further solution of the present invention: the grinding inner frame includes a grinding zone arranged in the grinding machine box and a grinding support ring arranged in the inner cavity of the grinding zone, the inner cavity of the grinding zone is provided with an inner ring positioning ring, the ring body of the grinding support ring is fixed to the fixed assembly bolt through the inner ring positioning ring, and the inner ring body of the grinding support ring is provided with an annular grinding surface.

[0011] As a further solution of the present invention: a rotating support is provided at the center line of the inner cavity of the grinding machine box, a power input head is provided on the rotating support, a grinding rotating frame is provided on the periphery of the power input head, and the grinding rotating frame is located in the inner ring area of ​​the grinding support ring.

[0012] As a further solution of the present invention: the grinding rotating frame includes a middle support sleeve installed on the power input head, a rotating support plate arranged on the middle support sleeve and an annular frame arranged on the rear edge of the rotating support plate, the rotating support plate is provided with outer convex corners at the edge corners of the disk body, support blocks are installed on the outer convex corners, flip plates are provided on the support blocks, mounting screws are installed in the flip plates, the disk surface of the annular frame is fixed on the mounting screws, and the outer edge of the flip plate is close to the annular grinding surface of the grinding support ring.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. Use a compression jaw crusher to preliminarily crush the plant material, effectively rupture the plant cell wall, and allow the cell fluid to be released more fully. This crushing method ensures that the cell wall is fully ruptured under strong squeezing and shearing, thereby improving the release efficiency of the cell fluid.

[0015] 2. After the initial crushing, the material enters the inner grinding frame for further refinement and grinding. The cell wall is further broken, the cell fluid is released more thoroughly, and the cell fibers are refined into smaller fragments.

[0016] Third, the cell fluid and cell fibers are kept relatively separated and do not adhere to each other. This treatment method facilitates the selective extraction of target substances in the cell fluid or cell fibers in a more targeted manner during the subsequent extraction process, thereby significantly improving the extraction efficiency.

[0017] Fourth, the design structure of the present invention can process various types of plant materials and adapt to the crushing and grinding requirements of different materials, and has high material adaptability and flexibility.

[0018] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings herein are incorporated into and constitute a part of the specification to illustrate embodiments consistent with the present application and are used together with the specification to explain the principles of the present application. At the same time, these drawings and text descriptions are not intended to limit the scope of the concept of the present application in any way, but to illustrate the concept of the present application for those skilled in the art by referring to specific embodiments.

[0020] Figure 1A schematic diagram of the overall structure of a plant crushing device for improving extraction efficiency provided in an embodiment of the present invention.

[0021] Figure 2 A schematic diagram of the structure of a crushing bin provided in an embodiment of the present invention.

[0022] Figure 3 A schematic diagram of the structure of a grinding chamber provided in an embodiment of the present invention.

[0023] Figure 4 A schematic diagram of the structure of an upper jaw crusher component and a lower jaw crusher component provided in an embodiment of the present invention.

[0024] Figure 5 A schematic diagram of the structure of a shifting mechanism provided in an embodiment of the present invention.

[0025] Figure 6 A schematic structural diagram of a grinding inner frame provided in an embodiment of the present invention.

[0026] Figure 7 A schematic structural diagram of a grinding rotating frame provided in an embodiment of the present invention.

[0027] In the figure: 11, equipment frame; 12, support platform; 13, unloading bin; 14, grinding bin; 15, CNC machine box; 16, unloading bin; 17, crushing bin; 18, strengthening bracket; 21, feeding frame; 22, crusher frame; 23, guide frame; 24, upper jaw crushing parts; 25, lower jaw crushing parts; 26, toggle mechanism; 31, grinding machine box; 32, turnover material port; 33, grinding inner frame; 41, lower jaw roller shaft; 42, lower jaw crushing roller; 43, lower jaw crushing teeth; 44, upper jaw roller mounting seat; 45, upper jaw roller shaft; 46, upper jaw crushing roller; 47, Upper jaw crushing tooth; 51, displacement track; 52, sliding base plate; 53, base plate transmission block; 54, fixed base block; 55, inner support spring; 61, side fixing bar; 62, pneumatic adjustment cylinder; 63, pneumatic branch pipe; 64, pneumatic adjustment bolt; 71, grinding interval; 72, inner ring positioning ring; 73, fixed group bolt; 74, grinding support ring; 75, rotating support; 76, power input head; 77, grinding rotating frame; 81, middle support sleeve; 82, rotating support plate; 83, outer convex angle; 84, support block; 85, flip plate; 86, mounting screw; 87, ring frame. DETAILED DESCRIPTION

[0028] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention, and examples thereof are shown in the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements.

[0029] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0031] For example, see Figures 1 to 3 , provides a plant crushing equipment for improving extraction efficiency, including an equipment frame 11, a supporting platform 12 arranged on the equipment frame 11, and a lower material bin 13 installed on the supporting platform 12; the equipment frame 11 is also provided with a grinding bin 14, the grinding bin 14 is located below the lower material bin 13 and its top is connected to the lower material bin 13, and the bottom of the grinding bin 14 is provided with a discharge bin 16; the supporting platform 12 is also provided with a crushing bin 17, and the end of the crushing bin 17 is connected to the lower material bin 13.

[0032] The equipment frame 11 is the supporting structure of the whole equipment and is welded with high-strength steel to ensure the stability and durability of the equipment. The support platform 12 is fixed on the equipment frame 11 and is a transverse support structure. The lower bin 13 and the crushing bin 17 are set up on the support platform 12. The crushing bin 17 is connected to the plant conveying equipment. The plant material is crushed from the crushing bin 17, and the fine particles fall into the lower bin 13. The crushed material then enters the grinding bin 14 from the bottom of the lower bin 13 for further fine grinding. The ground plant extract is discharged through the discharge bin 16, collected and used in the subsequent extraction process.

[0033] The crushing bin 17 includes a feed frame 21, a crusher frame 22 arranged on the feed frame 21, and a material guide frame 23 installed on the feed end of the feed frame 21. The crusher frame 22 is connected to the lower bin 13. An upper jaw crushing mechanism 24 and a lower jaw crushing mechanism 25 are respectively arranged in the crusher frame 22. The lower jaw crushing mechanism 25 is fixedly installed, and the upper jaw crushing mechanism 24 is movably installed. A toggle mechanism 26 for driving the upper jaw crushing mechanism 24 to move is arranged on the side edge of the feed frame 21.

[0034] The feed frame 21 is the outer frame of the crushing bin 17, and is used to support the overall crushing implementation area. The guide frame 23 is arranged at the feed end of the feed frame 21, and can be connected to relevant material conveying equipment to smoothly guide the plant material into the crusher frame 22 to prevent blockage and excessive impact. The crusher frame 22 is installed on the feed frame 21, and is provided with an upper jaw crushing mechanism 24 and a lower jaw crushing mechanism 25. The upper jaw crushing mechanism 24 is movably installed, and can move up and down under the drive of the toggle mechanism 26, and cooperates with the fixed lower jaw crushing mechanism 25 to perform preliminary crushing on the plant material entering the crushing bin 17. The bottom of the crusher frame 22 is connected to the lower hopper 13. A screening tool can be provided between the crusher frame 22 and the lower hopper 13 to screen out the crushed fine particles and drop them into the lower hopper 13, while the uncrushed materials continue to be crushed. During the crushing process, the cell walls of the plant materials are broken under the strong squeezing and shearing action of the upper and lower jaws, and the cell fluid is initially released, while the cell fibers are broken into smaller fragments.

[0035] The grinding bin 14 includes a grinding machine box 31, a turnover material port 32 arranged at the top of the grinding machine box 31, and a grinding inner frame 33 installed in the grinding machine box 31. The grinding machine box 31 is connected to the bottom end of the lower material bin 13, and the discharge bin 16 is arranged at the discharge end of the grinding inner frame 33.

[0036] The turnover material port 32 is connected to the bottom end of the lower material bin 13 to receive the crushed plant material. To ensure that the crushed material smoothly enters the grinding inner frame 33, the grinding inner frame 33 is filled with grinding media, and the material is further refined and ground by rotation or vibration. During the grinding process, the cell wall is further broken, the cell fluid is released more fully, and the cell fiber is further refined. The discharge bin 16 is set at the discharge end of the grinding inner frame 33 to collect the ground material for subsequent extraction and processing.

[0037] This embodiment adopts the implementation method of compression jaw crushing, the plant cell wall is effectively broken, and the cell fluid is released more fully, but the mixing effect of the plant cell fluid and plant cell fiber is limited, and the cell fluid and fiber tissue will not be mixed and adhered together, thereby improving the subsequent extraction efficiency of the cell fluid. The dual effects of crushing and grinding make the cell fibers refined into smaller fragments, the plant cell wall is completely broken, and the cell fluid is released more fully.

[0038] This embodiment ensures the comprehensiveness of the crushing through refined crushing and grinding processing, and at the same time, the cell fluid and cell fibers are not adhered and mixed. In the subsequent extraction process, the target substance in the cell fluid or cell fiber can be more specifically and selectively extracted, thereby improving the extraction efficiency.

[0039] Preferably, a reinforcing bracket 18 is provided on the side edge of the equipment frame 11 to improve the stability of the entire equipment, and a numerical control box 15 is provided on the side edge of the support platform 12 to control the operation of the entire equipment.

[0040] Embodiment 2: This embodiment is a further design of the above embodiment. Figure 2 , Figure 4 and Figure 5 On this basis, the specific implementation structure of the upper jaw crushing member 24 and the lower jaw crushing member 25 is designed as follows:

[0041] The lower jaw crushing mechanism 25 includes a plurality of lower jaw roller shafts 41, a lower jaw crushing roller 42 mounted on the lower jaw roller shaft 41, and a lower jaw crushing tooth 43 arranged on the lower jaw crushing roller 42. The upper jaw crushing mechanism 24 includes an upper jaw roller mounting seat 44, an upper jaw roller shaft 45 arranged on the upper jaw roller mounting seat 44, an upper jaw crushing roller 46 mounted on the upper jaw roller shaft 45, and an upper jaw crushing tooth 47 arranged on the upper jaw crushing roller 46. The upper jaw crushing roller 46 is located above the lower jaw crushing roller 42, and the upper jaw crushing roller 46 and the lower jaw crushing roller 42 are arranged in a staggered manner. As an example, a mechanism arrangement is shown in the figure. In this embodiment, one upper jaw crushing roller 46 and two lower jaw crushing rollers 42 are arranged in a "pin" shape.

[0042] The material slides down the slope of the guide frame 23, falls into the inner cavity of the crusher frame 22, and slides into the crushing range of the upper jaw crusher 24 and the lower jaw crusher 25. The upper jaw roller 45 and the lower jaw roller 41 are both externally connected to relevant power drive equipment. During operation, the upper jaw crushing roller 46 and the two lower jaw crushing rollers 42 rotate simultaneously to quickly and evenly crush the cell wall of the plant tissue. Due to the staggered arrangement design, the material is subjected to shear, extrusion and friction from different directions when passing through, which significantly improves the crushing efficiency and is conducive to the penetration of cell fluid and the dissolution of effective components.

[0043] The toggle mechanism 26 includes a displacement track 51 arranged on the side wall of the feed frame 21 and a sliding base plate 52 installed on the displacement track 51, the upper jaw roller mounting seat 44 is installed on the sliding base plate 52, a base plate transmission block 53 is installed on the sliding base plate 52, a fixed base block 54 is arranged at the bottom of the outer wall of the feed frame 21, and an inner support spring 55 is arranged between the two ends of the base plate transmission block 53 and the corresponding fixed base block 54. The side edge of the outer wall of the feed frame 21 is also provided with a side fixed fence 61 and a pneumatic adjustment cylinder 62 installed on the side fixed fence 61, the pneumatic adjustment cylinder 62 is externally connected to a pneumatic branch pipe 63, and a pneumatic adjustment bolt 64 is also slidably installed on the pneumatic adjustment cylinder 62, the pneumatic adjustment bolt 64 is driven by the pneumatic branch pipe 63, and the pneumatic adjustment bolt 64 is fixedly connected to the pneumatic branch pipe 63.

[0044] On the basis of the above structure, the present embodiment is also provided with a displacement track 51, along which the sliding base plate 52 moves, and the upper jaw crushing roller 46 is mounted on the sliding base plate 52 through the upper jaw roller mounting seat 44. The base plate transmission block 53 connects the sliding base plate 52 with the fixed base block 54; the side fixed fence 61 provides a stable installation platform for the pneumatic adjustment cylinder 62, and the pneumatic branch pipe 63 is used to connect the pneumatic adjustment cylinder 62 with an external air source (such as an air compressor) to provide a stable air pressure for the pneumatic adjustment cylinder 62, which converts it into mechanical force, thereby driving the sliding base plate 52 and the upper jaw crushing roller 46 to rise and fall; the design of the internal support spring 55 effectively absorbs the impact and vibration during the crushing process, and improves the stability and service life of the equipment.

[0045] In the overall implementation process of this embodiment, firstly, the staggered upper jaw crushing rollers 46 and the two lower jaw crushing rollers 42 are designed to combine with the pneumatically adjusted lifting mechanism to form an efficient crushing system, which significantly improves the crushing efficiency of the cell wall; secondly, the strong shearing and extrusion effects enable the cell wall to be more thoroughly crushed, and the cell fluid is released more fully, which is beneficial to the subsequent extraction process; thirdly, the upper jaw crushing roller 46 is reciprocatedly lifted and lowered to form an up and down reciprocating impact, which can destroy the stirring environment formed by the rotation of the roller body, reduce the mixing force between the cell fluid and the plant fiber, and prevent the two from forming a colloid adhesion; fourthly, in the preparation stage, by adjusting the air pressure of the pneumatic adjustment cylinder 62 and the moving range of the sliding base plate 52, it can adapt to the crushing needs of plant materials of different types and hardness.

[0046] Embodiment 3: This embodiment is a further design of the above embodiment. Figure 3 and Figure 6 On this basis, for the specific implementation structure of the grinding inner frame 33, this embodiment is designed as follows:

[0047] The grinding inner frame 33 includes a grinding area 71 disposed in the grinding machine box 31 and a grinding support ring 74 disposed in the inner cavity of the grinding area 71. The inner cavity of the grinding area 71 is provided with an inner ring positioning ring 72. The ring body of the grinding support ring 74 is fixed to the fixing group bolt 73 through the inner ring positioning ring 72. The inner ring body of the grinding support ring 74 is provided with an annular grinding surface. A rotating support 75 is provided at the center line of the inner cavity of the grinding machine box 31. A power input head 76 is provided on the rotating support 75. A grinding rotating frame 77 is provided on the periphery of the power input head 76. The grinding rotating frame 77 is located in the inner ring area of ​​the grinding support ring 74.

[0048] The plant material falls into the grinding area 71. The grinding machine box 31 is equipped with a related motor as a power source. The rotational power is transmitted to the grinding rotating frame 77 through the power input head 76. The grinding rotating frame 77 starts to rotate, continuously turning the plant material, causing friction and collision between the plant material and the annular grinding surface of the grinding support ring 74. The plant material is broken into smaller particles under the action of friction and collision for subsequent extraction or processing processes.

[0049] In one case of this embodiment, see Figure 6 and Figure 7 The grinding rotating frame 77 includes a middle support sleeve 81 installed on the power input head 76, a rotating support plate 82 arranged on the middle support sleeve 81, and an annular frame 87 arranged on the rear edge of the rotating support plate 82. The rotating support plate 82 is provided with an outer convex corner 83 at the edge corner of the disk body, and a support block 84 is installed on the outer convex corner 83. The support block 84 is provided with a flip plate 85, and a mounting screw 86 is installed in the flip plate 85. The disk surface of the annular frame 87 is fixed on the mounting screw 86, and the outer edge of the flip plate 85 is close to the annular grinding surface of the grinding support ring 74.

[0050] The middle support sleeve 81 is directly mounted on the power input head 76 and rotates with the rotation of the power input head 76. The rotating support plate 82 is arranged on the middle support sleeve 81 to provide stable support for the flap plate 85. The design of the outer convex angle 83 and the support block 84 enhances the structural strength of the rotating support plate 82 and allows the flap plate 85 to be installed at a certain angle. The flap plate 85 is fixed to the support block 84 by the mounting screw 86 and connected to the annular frame 87 to form an integral rotating crushing unit; the outer edge of the flap plate 85 is carefully adjusted to maintain a small gap with the annular grinding surface of the grinding support ring 74 to ensure that effective crushing force is generated during the rotation process.

[0051] In the overall operation process of this embodiment, the flipping plate 85 continuously flips the plant material during the rotation process, so that it and the annular grinding surface of the grinding support ring 74 achieve a more uniform and thorough crushing effect; the plant tissue debris is subjected to the friction and compression of the grinding support ring 74 and the flipping plate 85, and is fully squeezed into the cell fluid present in the plant fiber; the overall flipping process has a centrifugal trend, and the plant fiber is a solid substance, which is closer to the grinding support ring 74 due to the influence of centrifugation. In this way, during the flipping process, the plant fiber is also more easily blocked and decelerated by the grinding strips on the annular grinding surface, making the separation between the solid plant fiber and the liquid cell fluid more obvious, which is convenient in the subsequent extraction process, and the target substance in the cell fluid or cell fiber can be more targeted and selectively extracted.

[0052] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered exemplary and non-restrictive in all respects, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention.

[0053] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A plant crushing device for improving extraction efficiency, comprising a device frame (11), a support platform (12) arranged on the device frame (11), and a lower material bin (13) installed on the support platform (12); characterized in that: The equipment frame (11) is also provided with a grinding bin (14), the grinding bin (14) is located below the lower material bin (13) and its top is connected to the lower material bin (13), and a discharge bin (16) is provided at the bottom of the grinding bin (14); The support platform (12) is also provided with a crushing bin (17), and the end of the crushing bin (17) is connected to the feeding bin (13); The crushing bin (17) comprises a feed frame (21), a crusher frame (22) arranged on the feed frame (21), and a guide frame (23) installed at the feed end of the feed frame (21); the crusher frame (22) leads into the lower bin (13); an upper jaw crushing component (24) and a lower jaw crushing component (25) are respectively arranged in the crusher frame (22); the lower jaw crushing component (25) is fixedly installed, and the upper jaw crushing component (24) is movably installed; a toggle mechanism (26) for driving the upper jaw crushing component (24) to move is arranged on the side edge of the feed frame (21); The grinding bin (14) comprises a grinding machine box (31), a turnover material port (32) arranged at the top of the grinding machine box (31), and a grinding inner frame (33) installed in the grinding machine box (31); the grinding machine box (31) is connected to the bottom end of the lower material bin (13); and the discharge bin (16) is arranged at the discharge end of the grinding inner frame (33); The lower jaw crushing mechanism (25) comprises a plurality of lower jaw roller shafts (41), a lower jaw crushing roller (42) mounted on the lower jaw roller shaft (41), and a lower jaw crushing tooth (43) arranged on the lower jaw crushing roller (42); the upper jaw crushing mechanism (24) comprises an upper jaw roller mounting seat (44), an upper jaw roller shaft (45) arranged on the upper jaw roller mounting seat (44), an upper jaw crushing roller (46) mounted on the upper jaw roller shaft (45), and an upper jaw crushing tooth (47) arranged on the upper jaw crushing roller (46); the upper jaw crushing roller (46) is located above the lower jaw crushing roller (42); and the upper jaw crushing roller (46) and the lower jaw crushing roller (42) are arranged in a staggered manner; The toggle mechanism (26) comprises a displacement track (51) arranged on the side wall of the feed frame (21) and a sliding base plate (52) mounted on the displacement track (51); the upper jaw roller mounting seat (44) is mounted on the sliding base plate (52); a base plate transmission block (53) is mounted on the sliding base plate (52); a fixed base block (54) is arranged at the bottom of the outer wall of the feed frame (21); and inner support springs (55) are arranged between the two ends of the base plate transmission block (53) and the corresponding fixed base blocks (54); The outer wall side edge of the feed frame (21) is also provided with a side fixed fence (61) and a pneumatic adjustment cylinder (62) installed on the side fixed fence (61); the pneumatic adjustment cylinder (62) is externally connected to a pneumatic branch pipe (63); a pneumatic adjustment bolt (64) is also slidably installed on the pneumatic adjustment cylinder (62); the pneumatic adjustment bolt (64) is driven by the pneumatic branch pipe (63); the pneumatic adjustment bolt (64) is fixedly connected to the pneumatic branch pipe (63); The grinding inner frame (33) comprises a grinding zone (71) arranged in the grinding machine box (31) and a grinding support ring (74) arranged in the inner cavity of the grinding zone (71); the inner cavity of the grinding zone (71) is provided with an inner ring positioning ring (72); the ring body of the grinding support ring (74) is fixed to the fixing assembly bolt (73) via the inner ring positioning ring (72); and the inner ring body of the grinding support ring (74) is provided with an annular grinding surface; A rotating support (75) is provided at the centerline position of the inner cavity of the grinding machine box (31); a power input head (76) is provided on the rotating support (75); a grinding rotating frame (77) is provided on the periphery of the power input head (76); the grinding rotating frame (77) is located in the inner ring area of ​​the grinding support ring (74); the grinding rotating frame (77) comprises a middle support sleeve (81) mounted on the power input head (76), a rotating support plate (82) provided on the middle support sleeve (81), and a rotating support plate (82) provided on the rotating support An annular frame (87) is provided at the rear edge of the rotating support plate (82); an outer convex corner (83) is provided at the edge corner of the disk body of the rotating support plate (82); a support block (84) is installed on the outer convex corner (83); a flip plate (85) is provided on the support block (84); a mounting screw (86) is installed in the flip plate (85); the disk surface of the annular frame (87) is fixed on the mounting screw (86); and the outer edge of the flip plate (85) is close to the annular grinding surface of the grinding support ring (74).

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