Stone grinding and screening device

Abstract

The invention discloses a stone grinding and screening device, and relates to the technical field of stone processing, the stone grinding and screening device comprises a frame body, two screening plates and two moving frames are slidably connected in the frame body, a first transmission assembly is arranged on the surface of the frame body, the first transmission assembly is matched with the screening plates for use, and a second transmission assembly is arranged at the tops of the screening plates. According to the stone grinding and screening device, the first transmission assembly drives the screen plate to transversely shake in a reciprocating mode so that the screen plate can play a role in screening stone, and when the screen plate shakes, the first transmission assembly drives the screen plate to transversely shake in a reciprocating mode so that the stone can be effectively screened. The screening plate drives the moving frame to shake through the second transmission assembly, the moving frame drives the grinding disc to shake through rotation, the grinding disc is made to rotate through the linkage assembly, the grinding disc can play a role in grinding stone, the stone processing efficiency can be effectively improved, and meanwhile the stone processing cost is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of stone processing, and specifically to a stone grinding and screening device. Background Art

[0002] Stone screening is a crucial link in the stone processing process. The purposes not only include controlling the particle size, improving the quality, but also optimizing the process, enhancing the resource utilization rate and environmental protection benefits. These purposes together ensure the high efficiency, economy and environmental protection of the stone processing process, and provide high-quality aggregates that meet the requirements for various engineering constructions.

[0003] At present, stone screening equipment can only perform the screening work of stones. After the screening of stones is completed, the stones usually need to be ground. In the prior art, only the screening equipment and the grinding equipment can be used together to perform the screening and grinding of stones, resulting in low efficiency and high cost of stone screening and grinding.

[0004] Combining the above problems, we will find that the existing stone screening equipment on the market is very difficult to avoid the above-mentioned problems simultaneously when in use. And even if it can be solved, it needs to be solved by the cooperation of external tools, thus unable to achieve the desired effect. Therefore, we propose a stone grinding and screening device. Summary of the Invention

[0005] The purpose of the present invention is to provide a stone grinding and screening device to solve the problems raised in the above background art.

[0006] To achieve the above purpose, the present invention provides the following technical solution: A stone grinding and screening device, including a frame body. Two sieve plates and two moving frames are slidably connected inside the frame body. A first transmission component is arranged on the surface of the frame body and is used in cooperation with the sieve plates. A second transmission component is arranged on the top of the sieve plates and is used in cooperation with the moving frames. A number of inclined surface convex blocks are fixedly installed on the surface of the sieve plates, and a number of arc-shaped guide plates are fixedly installed on the surface of the sieve plates. A grinding mechanism is arranged on the surface of the moving frames, and a feeding plate is fixedly installed at the bottom of the sieve plates; The grinding mechanism includes a number of rotating shafts penetrating the moving frames. The surfaces of the rotating shafts are rotatably connected with the moving frames. Grinding discs are arranged at the bottoms of a number of the rotating shafts. A number of the grinding discs are used in cooperation with a number of the inclined surface convex blocks and a number of the arc-shaped guide plates. A number of linkage components are arranged on the top of the moving frames and are used in cooperation with a number of the rotating shafts.

[0007] Preferably, the linkage assembly includes a rotating rod rotatably connected to the top of the moving frame. A third gear is fixedly sleeved on the surface of the rotating rod. Fourth gears are fixedly sleeved on the surfaces of several rotating shafts. A synchronous toothed belt is meshed with the surfaces of the third gear and several fourth gears.

[0008] Preferably, several limiting rods are fixedly installed on the surface of the moving frame. The several limiting rods are used in cooperation with the synchronous toothed belt.

[0009] Preferably, fifth gears are fixedly installed on the tops of several rotating rods. Several third teeth are fixedly installed on the inner wall of the frame body. The several fifth gears are meshed with the several third teeth.

[0010] Preferably, a positioning block is fixedly installed on the surface of the rotating shaft. A positioning sleeve is fixedly installed on the surface of the moving frame. The positioning block is rotatably connected to the inside of the positioning sleeve.

[0011] Preferably, a support rod is fixedly connected to the top of the grinding disc. A cavity is formed inside the rotating shaft. One end of the support rod extends into the cavity and is slidably connected to the rotating shaft. A spring is fixedly installed inside the cavity. The bottom of the spring is fixedly connected to one end of the support rod.

[0012] Preferably, the second transmission assembly includes several first teeth fixedly installed on the top of the sieve plate. A first gear is rotatably installed inside the frame body. Several second teeth are fixedly installed on the bottom of the moving frame. The several first teeth and the several second teeth are both meshed with the first gear.

[0013] Preferably, the first transmission assembly includes a motor fixedly installed on the surface of the frame body. A first sprocket is fixedly sleeved on the output end of the motor. A second sprocket is rotatably installed on the surface of the frame body through a rotating shaft. A chain is meshed with the surfaces of the first sprocket and the second sprocket. A reciprocating assembly is arranged inside the frame body.

[0014] Preferably, the reciprocating assembly includes two crankshafts rotatably connected inside the frame body. One ends of the two crankshafts are respectively fixedly connected to the output end of the motor and the rotating shaft of the second sprocket. A connecting rod is rotatably sleeved on the surface of the crankshaft. A support is fixedly installed on the bottom of the feeding plate. One end of the connecting rod is rotatably connected to the inside of the support.

[0015] Preferably, sliding grooves are formed on opposite sides of the inner wall of the frame body. Sliding blocks are fixedly installed on both sides of the sieve plate and the moving frame. The surface of the sliding block is slidably connected to the inner cavity of the sliding groove.

[0016] Compared with the prior art, the beneficial effects of the present invention are: In the present invention, a first transmission assembly drives a sieve plate to reciprocate horizontally, enabling the sieve plate to screen stones. While the sieve plate is shaking, the sieve plate drives a moving frame to shake simultaneously through a second transmission assembly. The moving frame drives a grinding disc to shake through rotation, and the grinding disc is rotated through a linkage assembly, enabling the grinding disc to grind the stones, which not only effectively improves the processing efficiency of the stones but also reduces the processing cost of the stones. When the grinding disc of the present invention shakes, it can drive the stones to move simultaneously. Through the arrangement of inclined surface bumps, when the grinding disc moves to the right, the stones can cross the inclined surface bumps through the inclined surface of the inclined surface bumps. When the grinding disc moves to the left, the grinding disc drives the stones to move towards the vertical surface of the inclined surface bumps and is guided by an arc-shaped guide plate, causing the stones to rotate during grinding, so that the grinding disc can perform uniform grinding work on the stones. Brief Description of the Drawings

[0017] Figure 1 is a schematic diagram of the overall structure of the present invention; Figure 2 is a schematic diagram of the structure of the first transmission assembly of the present invention; Figure 3 is a schematic diagram of the structure of the frame body of the present invention; Figure 4 is a schematic diagram of the structure of the second transmission assembly of the present invention; Figure 5 is a schematic diagram of the structure of the sieve plate of the present invention; Figure 6 is a schematic diagram of the structure of the moving frame of the present invention; Figure 7 is a schematic diagram of the bottom view structure of the moving frame of the present invention; Figure 8 is a schematic diagram of the top view structure of the moving frame of the present invention; Figure 9 is a schematic diagram of the structure of the linkage assembly of the present invention.

[0018] In the figure: 1. Frame body; 11. Chute; 12. Slide block; 2. First transmission assembly; 21. Motor; 22. First sprocket; 23. Second sprocket; 24. Chain; 25. Reciprocating assembly; 2501. Crankshaft; 2502. Connecting rod; 2503. Bracket; 3. Sieve plate; 31. Inclined surface bump; 32. Arc-shaped guide plate; 33. Feeding plate; 4. Moving frame; 5. Second transmission assembly; 51. First tooth; 52. First gear; 53. Second tooth; 6. Grinding mechanism; 61. Rotating shaft; 6101. Positioning block; 6102. Positioning sleeve; 62. Grinding disc; 6201. Support rod; 6202. Cavity; 6203. Spring; 63. Linkage assembly; 6301. Rotating rod; 6302. Third gear; 6303. Fourth gear; 6304. Synchronous toothed belt; 6305. Limiting rod; 6306. Fifth gear; 6307. Third tooth. Detailed implementation mode

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0020] Embodiment 1: Please refer to Figures 1-9 , the present invention provides a technical solution: a stone grinding and screening device, including a frame 1, two sieve plates 3 and two moving frames 4 are slidably connected inside the frame 1, a first transmission component 2 is arranged on the surface of the frame 1, the first transmission component 2 is used in cooperation with the sieve plate 3, a second transmission component 5 is arranged on the top of the sieve plate 3, the second transmission component 5 is used in cooperation with the moving frame 4, a plurality of inclined surface bumps 31 are fixedly installed on the surface of the sieve plate 3, a plurality of arc-shaped guide plates 32 are fixedly installed on the surface of the sieve plate 3, a grinding mechanism 6 is arranged on the surface of the moving frame 4, and a feeding plate 33 is fixedly installed at the bottom of the sieve plate 3; The grinding mechanism 6 includes a plurality of rotating shafts 61 penetrating through the moving frame 4, the surface of the rotating shaft 61 is rotatably connected with the moving frame 4, a grinding disc 62 is arranged at the bottom of each of the plurality of rotating shafts 61, the plurality of grinding discs 62 are used in cooperation with the plurality of inclined surface bumps 31 and the plurality of arc-shaped guide plates 32, a plurality of linkage components 63 are arranged on the top of the moving frame 4, and the plurality of linkage components 63 are used in cooperation with the plurality of rotating shafts 61; By driving the sieve plate 3 to perform a reciprocating shake in the horizontal direction through the first transmission component 2, so that the sieve plate 3 plays a role in screening stones. While the sieve plate 3 is shaking, the sieve plate 3 drives the moving frame 4 to shake simultaneously through the second transmission component 5. The moving frame 4 drives the grinding disc 62 to shake through rotation, and the grinding disc 62 is rotated through the linkage component 63, so that the grinding disc 62 can grind the stones, and can drive the stones to move when shaking. And through the setting of the inclined surface bumps 31, and driven by the grinding disc 62, when the grinding disc 62 moves to the right, the stones can cross the inclined surface bumps 31 through the inclined surface of the inclined surface bumps 31. When the grinding disc 62 moves to the left, the grinding disc 62 drives the stones to move towards the vertical surface of the inclined surface bumps 31 and is guided by the arc-shaped guide plate 32, so that the stones rotate during grinding, so that the grinding disc 62 can perform uniform grinding work on the stones, and thus play a role in grinding the stones while screening the stones, which can not only effectively improve the processing efficiency of the stones, but also reduce the processing cost of the stones.

[0021] As a further limitation of the grinding mechanism 6 of the present invention, the linkage assembly 63 includes a rotating rod 6301 rotatably connected to the top of the moving frame 4. A third gear 6302 is fixedly sleeved on the surface of the rotating rod 6301. Fourth gears 6303 are fixedly sleeved on the surfaces of a plurality of rotating shafts 61. A synchronous toothed belt 6304 is commonly engaged with the surfaces of the third gear 6302 and the plurality of fourth gears 6303. By rotating the rotating rod 6301, the rotating rod 6301 drives the third gear 6302 to rotate. The third gear 6302 drives the fourth gear 6303 to rotate through the synchronous toothed belt 6304, so that the fourth gear 6303 drives the rotating shaft 61 to rotate, so that the rotating shaft 61 drives the grinding disc 62 to rotate, so that the grinding disc 62 rotates while shaking, so as to improve the grinding effect of the grinding disc 62 on the stone material. Through a plurality of linkage assemblies 63, a plurality of grinding discs 62 can simultaneously perform grinding work on the stone material on the sieve plate 3.

[0022] A plurality of limiting rods 6305 are fixedly installed on the surface of the moving frame 4. The plurality of limiting rods 6305 are used in cooperation with the synchronous toothed belt 6304. By arranging the limiting rods 6305 on the surface of the moving frame 4, the limiting rods 6305 can play a limiting role on the synchronous toothed belt 6304, so as to increase the meshing area between the synchronous toothed belt 6304 and the fourth gear 6303 and ensure that the fourth gear 6303 can rotate normally.

[0023] Fifth gears 6306 are fixedly installed on the tops of the plurality of rotating rods 6301. A plurality of third teeth 6307 are fixedly installed on the inner wall of the frame body 1. The plurality of fifth gears 6306 are engaged with the plurality of third teeth 6307. By installing the fifth gears 6306 on the tops of the rotating rods 6301 and installing a plurality of third teeth 6307 on the inner wall of the frame body 1, when the moving frame 4 shakes, the fifth gears 6306 are rotated by the third teeth 6307, so that the fifth gears 6306 drive the rotating rods 6301 to rotate.

[0024] A positioning block 6101 is fixedly installed on the surface of the rotating shaft 61. A positioning sleeve 6102 is fixedly installed on the surface of the moving frame 4. The positioning block 6101 is rotatably connected inside the positioning sleeve 6102. By rotatably connecting the positioning block 6101 inside the positioning sleeve 6102, the position of the rotating shaft 61 is stabilized, and the situation that the rotating shaft 61 has longitudinal displacement, offset, etc. and affects the position of the grinding disc 62 is avoided.

[0025] A support rod 6201 is fixedly connected to the top of the grinding disc 62. A cavity 6202 is formed inside the rotating shaft 61. One end of the support rod 6201 extends into the cavity 6202 and is slidably connected to the rotating shaft 61. A spring 6203 is fixedly installed inside the cavity 6202. The bottom of the spring 6203 is fixedly connected to one end of the support rod 6201. By sliding one end of the support rod 6201 inside the cavity 6202 and supporting the position of the support rod 6201 through the spring 6203, the position of the grinding disc 62 can be supported, so that when the stone crosses the inclined surface bump 31, the grinding disc 62 can move upward, avoiding the situation that the stone is difficult to cross the inclined surface bump 31 and unable to carry out the grinding work.

[0026] The specific implementation manner of this embodiment is as follows: Add stones on the sieve plate 3, and make the sieve plate 3 shake through the first transmission component 2, so that the sieve plate 3 plays a role in screening stones, and the screened stones are sent into the lower sieve plate 3 through the feeding plate 33. When the sieve plate 3 shakes, the sieve plate 3 makes the moving frame 4 shake simultaneously through the second transmission component 5. The moving frame 4 drives the grinding disc 62 to shake through the rotating shaft 61. And through the shaking of the moving frame 4, the moving frame 4 drives the rotating rod 6301 to move, and through the engagement of the fifth gear 6306 and the third tooth 6307, the rotating rod 6301 rotates. The rotating rod 6301 drives the third gear 6302 to rotate. The third gear 6302 drives the fourth gear 6303 to rotate through the synchronous belt 6304. And the position of the synchronous belt 6304 is limited by the limiting rod 6305 to ensure the meshing area between the synchronous belt 6304 and the fourth gear 6303, so that the fourth gear 6303 can stably drive the rotating shaft 61 to rotate, and then the rotating shaft 61 drives the grinding disc 62 to rotate, so that the grinding disc 62 rotates while reciprocating, so that the grinding disc 62 plays a role in grinding stones. When the grinding disc 62 shakes, when the grinding disc 62 moves to the right, it can drive the stone to cross the inclined surface bump 31 through the inclined surface of the inclined surface bump 31. When the grinding disc 62 drives the stone to cross the inclined surface bump 31 to the right, the grinding disc 62 moves upward, and at the same time, the support rod 6201 slides inside the cavity 6202 and compresses the spring 6203. After the stone crosses the inclined surface bump 31, the spring 6203 drives the grinding disc 62 to reset through the support rod 6201. When the grinding disc 62 moves to the left, the grinding disc 62 drives the stone to move towards the vertical surface of the inclined surface bump 31 and is guided by the arc-shaped guide plate 32, so that the stone rotates when moving towards the inclined surface bump 31, so that the grinding disc 62 can evenly grind the stone. Repeating this process, after the stone is ground by the grinding disc 62 for multiple rounds, the grinding work of the stone can be completed, and through the shaking of the sieve plate 3 and the driving of the grinding disc 62, the ground stone can be discharged, so as to achieve the work of screening stones while grinding stones.

[0027] Example 2: Please refer to Figures 1-9, the present invention provides a technical solution: a stone grinding and screening device, and the present invention makes corresponding improvements to the technical problems mentioned in the background art.

[0028] As a further limitation of the second transmission component 5 of the present invention, the second transmission component 5 includes a plurality of first teeth 51, the plurality of first teeth 51 are fixedly installed on the top of the sieve plate 3, a first gear 52 is rotatably installed inside the frame body 1, and a plurality of second teeth 53 are fixedly installed at the bottom of the moving frame 4. The plurality of first teeth 51 and the plurality of second teeth 53 are both engaged with the first gear 52; when the sieve plate 3 shakes horizontally, the sieve plate 3 drives the first teeth 51 to move, and the first teeth 51 drive the first gear 52 to rotate, so that the first gear 52 drives the moving frame 4 to move through the second teeth 53, so that the moving frame 4 and the sieve plate 3 move in opposite directions. By making the moving frame 4 and the sieve plate 3 shake in opposite directions, the speed of the staggered movement of the stone and the grinding disc 62 is increased, thereby improving the grinding effect of the stone.

[0029] The specific implementation manner of this embodiment is: when the first transmission component 2 drives the sieve plate 3 to shake horizontally, the sieve plate 3 drives the first teeth 51 to move simultaneously, so that the first teeth 51 drive the first gear 52 to rotate. Through the rotation of the first gear 52, the first gear 52 drives the moving frame 4 to move simultaneously through the second teeth 53, and makes the moving frame 4 and the sieve plate 3 move in opposite directions, so as to achieve the effect of making the sieve plate 3 and the moving frame 4 shake in opposite directions. When the sieve plate 3 moves to the left, the moving frame 4 moves to the right, so that the grinding disc 62 drives the stone to cross over the inclined surface convex block 31. When the sieve plate 3 moves to the right, the moving frame 4 moves to the left, and the grinding disc 62 drives the stone to move in the direction of the vertical surface of the inclined surface convex block 31, and the stone rotates under the guidance of the arc-shaped guide plate 32. Moreover, the moving frame 4 and the sieve plate 3 shake in opposite directions, so that the grinding disc 62 and the stone move in a staggered manner, and the speed of the staggered movement of the stone and the grinding disc 62 is increased, thereby effectively improving the grinding effect of the stone.

[0030] Example 3: Please refer to Figures 1-9 , the present invention provides a technical solution: a stone grinding and screening device, and the present invention makes corresponding improvements to the technical problems mentioned in the background art.

[0031] As a further limitation of the first transmission component 2 of the present invention, the first transmission component 2 includes a motor 21 fixedly installed on the surface of the frame 1. A first sprocket 22 is fixedly sleeved on the output end of the motor 21. A second sprocket 23 is rotatably installed on the surface of the frame 1 through a rotating shaft. A chain 24 is commonly engaged on the surfaces of the first sprocket 22 and the second sprocket 23. A reciprocating component 25 is arranged inside the frame 1; the motor 21 drives the first sprocket 22 to rotate, the sprocket drives the second sprocket 23 to rotate through the chain 24, and by the cooperation of the first sprocket 22, the second sprocket 23 and the reciprocating component 25, the two reciprocating components 25 can move simultaneously, so that the two sieve plates 3 shake simultaneously, so that the sieve plates 3 can play a role in screening stones.

[0032] The reciprocating component 25 includes two crankshafts 2501 rotatably connected inside the frame 1. One ends of the two crankshafts 2501 are respectively fixedly connected to the output end of the motor 21 and the rotating shaft of the second sprocket 23. A connecting rod 2502 is rotatably sleeved on the surface of the crankshaft 2501. A bracket 2503 is fixedly installed at the bottom of the feeding plate 33. One end of the connecting rod 2502 is rotatably connected inside the bracket 2503; the motor 21 drives one of the crankshafts 2501 to rotate, and the other crankshaft 2501 is driven to rotate through the first sprocket 22, the chain 24 and the second sprocket 23. The crankshaft 2501 drives the connecting rod 2502 to move, the connecting rod 2502 drives the bracket 2503 to move, the bracket 2503 drives the feeding plate 33 to move, and the feeding plate 33 drives the sieve plate 3 to move. Thus, the sieve plate 3 can be reciprocated horizontally through the reciprocating component 25.

[0033] Sliding grooves 11 are respectively opened on the opposite sides of the inner wall of the frame 1. Sliders 12 are fixedly installed on both sides of the sieve plate 3 and the moving frame 4. The surface of the slider 12 is slidably connected to the inner cavity of the sliding groove 11; by the sliding connection of the surface of the slider 12 to the inner cavity of the sliding groove 11, the positions of the sieve plate 3 and the moving frame 4 inside the frame 1 can be effectively stabilized, and the positions of the sieve plate 3 and the moving frame 4 are prevented from shifting, which may affect the screening and grinding of stones.

[0034] The specific implementation of this embodiment is as follows: the motor 21 drives one of the crankshafts 2501 to rotate, and drives the second sprocket 23 to rotate through the first sprocket 22 and the chain 24. The second sprocket 23 drives the other crankshaft 2501 to rotate through the rotating shaft. Thus, the crankshaft 2501 drives the connecting rod 2502 to move, the connecting rod 2502 drives the bracket 2503 to move, and the bracket 2503 drives the sieve plate 3 to move. Thus, the sieve plate 3 can be shaken horizontally in a piston motion manner through the first transmission component 2, so that the sieve plate 3 can play a role in screening stones. And when the sieve plate 3 shakes, the positions of the sieve plate 3 and the moving frame 4 inside the frame 1 are stabilized by the sliding connection of the surface of the slider 12 to the inner cavity of the sliding groove 11, and the positions of the sieve plate 3 and the moving frame 4 are prevented from shifting, which may affect the screening and grinding of stones.

[0035] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A stone grinding and screening device, comprising a frame (1), characterized in that: Two sieve plates (3) and two moving frames (4) are slidably connected inside the frame body (1). A first transmission assembly (2) is arranged on the surface of the frame body (1). The first transmission assembly (2) is used in cooperation with the sieve plate (3). A second transmission assembly (5) is arranged on the top of the sieve plate (3). The second transmission assembly (5) is used in cooperation with the moving frame (4). A number of inclined bumps (31) are fixedly installed on the surface of the sieve plate (3). A number of arc-shaped guide plates (32) are fixedly installed on the surface of the sieve plate (3). A grinding mechanism (6) is arranged on the surface of the moving frame (4). A feeding plate (33) is fixedly installed at the bottom of the sieve plate (3). The grinding mechanism (6) includes a number of rotating shafts (61) penetrating through the moving frame (4). The surface of the rotating shaft (61) is rotatably connected with the moving frame (4). Grinding discs (62) are arranged at the bottoms of a number of the rotating shafts (61). The a number of grinding discs (62) are used in cooperation with the a number of inclined bumps (31) and the a number of arc-shaped guide plates (32). A number of linkage assemblies (63) are arranged on the top of the moving frame (4). The a number of linkage assemblies (63) are used in cooperation with the a number of rotating shafts (61).

2. The stone grinding and screening device according to claim 1, characterized in that: The linkage assembly (63) includes a rotating rod (6301) rotatably connected to the top of the moving frame (4). A third gear (6302) is fixedly sleeved on the surface of the rotating rod (6301). Fourth gears (6303) are fixedly sleeved on the surfaces of a number of the rotating shafts (61). A synchronous toothed belt (6304) meshes with the surface of the third gear (6302) and the surfaces of the a number of fourth gears (6303).

3. A stone grinding and screening device according to claim 2, characterized in that: A number of limiting rods (6305) are fixedly installed on the surface of the moving frame (4). The a number of limiting rods (6305) are used in cooperation with the synchronous toothed belt (6304).

4. A stone grinding and screening device according to claim 2, characterized in that: Fifth gears (6306) are fixedly installed at the tops of a number of the rotating rods (6301). A number of third teeth (6307) are fixedly installed on the inner wall of the frame body (1). The a number of fifth gears (6306) mesh with the a number of third teeth (6307).

5. A stone grinding and screening device according to claim 1, characterized in that: A positioning block (6101) is fixedly installed on the surface of the rotating shaft (61). A positioning sleeve (6102) is fixedly installed on the surface of the moving frame (4). The positioning block (6101) is rotatably connected inside the positioning sleeve (6102).

6. A stone grinding and screening device according to claim 1, characterized in that: A support rod (6201) is fixedly connected to the top of the grinding disc (62). A cavity (6202) is formed inside the rotating shaft (61). One end of the support rod (6201) extends into the cavity (6202) and is slidably connected with the rotating shaft (61). A spring (6203) is fixedly installed inside the cavity (6202). The bottom of the spring (6203) is fixedly connected to one end of the support rod (6201).

7. A stone grinding and screening device according to claim 1, characterized in that: The second transmission component (5) includes a plurality of first teeth (51), and the plurality of first teeth (51) are fixedly installed on the top of the sieve plate (3). A first gear (52) is rotatably installed inside the frame body (1). A plurality of second teeth (53) are fixedly installed at the bottom of the moving frame (4), and the plurality of first teeth (51) and the plurality of second teeth (53) are both engaged with the first gear (52).

8. A stone grinding and screening device according to claim 1, characterized in that: The first transmission component (2) includes a motor (21) fixedly installed on the surface of the frame body (1). A first sprocket (22) is fixedly sleeved on the output end of the motor (21). A second sprocket (23) is rotatably installed on the surface of the frame body (1) through a rotating shaft. A chain (24) is jointly engaged on the surfaces of the first sprocket (22) and the second sprocket (23). A reciprocating component (25) is arranged inside the frame body (1).

9. The stone grinding and screening device according to claim 8, wherein: The reciprocating component (25) includes two crankshafts (2501) rotatably connected inside the frame body (1). One ends of the two crankshafts (2501) are respectively fixedly connected to the output end of the motor (21) and the rotating shaft of the second sprocket (23). A connecting rod (2502) is rotatably sleeved on the surface of the crankshaft (2501). A support (2503) is fixedly installed at the bottom of the feeding plate (33), and one end of the connecting rod (2502) is rotatably connected inside the support (2503).

10. A stone grinding and screening device according to claim 1, characterized in that: Sliding grooves (11) are respectively formed on the opposite sides of the inner wall of the frame body (1). Sliders (12) are fixedly installed on both sides of the sieve plate (3) and the moving frame (4), and the surfaces of the sliders (12) are slidably connected to the inner cavities of the sliding grooves (11).

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