Circulating water cleaning and screening device for traditional Chinese medicinal materials

Abstract

The invention relates to the technical field of traditional Chinese medicinal material cleaning, and discloses a circulating water cleaning and screening device for traditional Chinese medicinal materials, which comprises a box body, and further comprises a discharging plate arranged on the right side of the box body and used for guiding out the cleaned traditional Chinese medicinal materials; the waste plate is arranged on the right side of the box body, located below the discharging plate and used for guiding out impurities; the circulating water pipe is mounted at the top of the box body, the bottom of the circulating water pipe is connected to the bottom of the box body, and water at the bottom of the box body is pumped out upwards through a water pump. Traditional Chinese medicinal materials are conveyed in the box body through the arranged conveying mechanism and are extruded downwards by the extrusion assembly so that the traditional Chinese medicinal materials can be prevented from being continuously conveyed to the right side, and a draining plate in the continuously moving conveying mechanism continuously drives first bristles to move and rub the traditional Chinese medicinal materials so that impurities on the outer walls of the traditional Chinese medicinal materials can be removed; and meanwhile, the cleaning belt rotates to scrub the upper portions of the traditional Chinese medicinal materials, so that the cleaning effect is further improved.

Description

Technical Field

[0001] The invention relates to the technical field of Chinese medicinal material cleaning, in particular to a circulating water cleaning and screening device for Chinese medicinal materials. Background Art

[0002] Chinese medicinal materials refer to native medicinal materials used under the guidance of traditional medicine to treat diseases. Most of their raw materials are plants. For example, rhizomes and barks of Chinese medicinal materials often contain impurities such as dirt and dust after harvesting, and they usually need to be cleaned before processing.

[0003] For example, a Chinese patent with announcement number CN 221017654 U discloses a cleaning and drying assembly for processing Chinese medicinal materials, including a base, a mounting frame fixedly mounted on the base, a conveying unit capable of frequently turning over the medicinal materials during the rinsing and drying process, and a flushing unit for flushing the medicinal materials during the conveying process and a drying unit for air-drying the medicinal materials, wherein the conveying unit is mounted on the mounting frame, and the conveying unit includes a plurality of guide rollers, a plurality of guide wheels, and two active rollers, wherein the plurality of guide rollers, a plurality of guide wheels, and two active rollers are rotatably mounted on the mounting frame. The utility model enables the medicinal materials transported on the upper end surface of the conveyor belt to be continuously and automatically turned over during the rinsing and drying process without manual operation, so that the flushing unit and the drying unit can more comprehensively flush the surface of the medicinal materials, and has a simple structure and low manufacturing cost, which reduces manpower input while improving the quality and efficiency of flushing and drying; However, the above equipment only washes the outer wall of the Chinese medicinal materials. For example, bark-type Chinese medicinal materials have a lot of dust, moss and other impurities in the gaps of the outer wall, which are usually removed by manual brushing with a wire brush. It is difficult to remove the impurities in the gaps of bark-type Chinese medicinal materials only by high-pressure washing, which will result in incomplete cleaning. Therefore, a circulating water cleaning and screening device for Chinese medicinal materials is proposed to solve the above-mentioned problems. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a circulating water cleaning and screening device for Chinese medicinal materials in view of the deficiencies in the above-mentioned prior art.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is: a circulating water cleaning and screening device for Chinese medicinal materials, comprising a box body, and also comprising: A discharge plate, arranged on the right side of the box body, for discharging the cleaned Chinese medicinal materials; A waste plate is arranged on the right side of the box body and below the discharge plate, and is used to discharge impurities; A circulating water pipe is installed on the top of the box, the bottom of which is connected to the bottom of the box, and the water at the bottom of the box is pumped upwards by a water pump; A feed plate, arranged on the left side of the box body, for placing the Chinese medicinal materials to be cleaned; The conveying mechanism is arranged inside the box body and connected to the feed plate and the discharge plate at the head and tail, respectively, for conveying the Chinese medicinal materials; An air drying mechanism is disposed in the box and is used to blow away moisture on the surface of the medicinal materials; A separation mechanism is disposed in the box and is used to separate impurities in the water so as to circulate and extract water to wash the Chinese medicinal materials; Wherein, the conveying mechanism comprises: Two rotating shafts are respectively mounted on the inner wall of the box body, and the back sides thereof extend outwardly into the belt box mounted on the back side of the box body; A plurality of sprockets are respectively fixedly mounted on the outer walls of the two rotating shafts; Two groups of chains are respectively wound around the outer wall of the sprocket; The drain assembly is arranged between the front and rear chains and follows the transmission, and is used for draining water during cleaning; The extrusion component is arranged on the top of the inner wall of the box body, and is used for pressing the Chinese medicinal materials downward to generate friction with the drain component to clean the impurities on the outer wall of the Chinese medicinal materials.

[0006] Preferably, the drain assembly comprises: A plurality of guide rods are respectively connected to the hinges of the front and rear sets of chains; The drain plate is in an "n" shape and is sequentially sleeved on the outer wall of the guide rod and rotates with the chain; A plurality of bristles are connected to the top of the drain plate and are used to cooperate with the downward pressing extrusion component to rub and scrub the Chinese medicinal materials.

[0007] Preferably, the extrusion assembly comprises: The push plate is pressed down and connected to the top of the inner wall of the box body through the telescopic rod connected to the top of the push plate; A stop rod connected to the bottom right side of the push plate to prevent the Chinese medicinal materials from moving to the right; A plurality of rollers are rotatably connected in the mounting grooves provided in the push plate; A cleaning belt, which is drivingly connected to the outer wall of the drum and is used for cleaning the Chinese medicinal materials from above; Two gear boxes are installed on the top of the push plate, and a motor is arranged on one side of the rear gear box; A rotating rod is installed between the two gear boxes, and the rollers on both sides are connected to the rotating rod through belt transmission; The elliptical wheel is fixedly sleeved on the outer wall of the rotating rod, and its outer wall contacts the top of the inner wall of the box body, and is used for pushing the downward push plate to move downward.

[0008] Preferably, the air-drying mechanism comprises: A material guide plate is fixedly connected in the box body, with its left side attached to the top of the drain plate, used for guiding materials, and a plurality of ventilation holes are opened on the material guide plate; The upper air inlet and the lower air inlet are installed in the box body and are respectively located above and below the material guide plate, and are connected to the fan installed on the top of the box body to blow away the moisture on the surface of the Chinese medicinal materials.

[0009] Preferably, the supporting mechanism comprises: A plurality of support rods are installed on the inner wall of the box and located inside the chain to support the chain; A plurality of arc-shaped plates, both ends of which are respectively inserted into the slots provided in the support rods; The brush plate is installed on the top of the arc-shaped plate, and a plurality of bristles are connected to the top of the brush plate for unclogging the drain plate.

[0010] Preferably, a dredging mechanism is provided inside the box body for dredging the drain plate, and the dredging mechanism comprises: A fixed shaft, fixedly connected to the inner wall of the box; The dredging rod is rotatably connected to the outer wall of the fixed shaft, and a plurality of bristles are installed below the dredging rod and fit with the drain plate; A plurality of coil springs are sleeved on the outer wall of the dredging rod and are respectively located on both sides of the dredging rod, and are used for resetting the dredging rod to rotate around a fixed axis.

[0011] Preferably, the separation mechanism comprises: Two inclined plates connected to the inner wall of the box; A separation belt assembly is installed on the inner wall of the box body, and a plurality of separation holes are opened on the belt to separate impurities and water; The separation belt set is connected to one of the rotating shafts through a pulley set arranged in the belt box, so as to drive synchronous rotation.

[0012] Preferably, the water outlet end of the circulating water pipe is connected to the interior of the box body, and is connected to a plurality of nozzles arranged side by side and facing the top of the drain assembly.

[0013] The present invention adopts the above technical solution to bring the following beneficial effects: 1. The circulating water cleaning and screening device for Chinese medicinal materials transports the Chinese medicinal materials in a box body through a provided conveying mechanism, and is squeezed downward by an extrusion component to limit the Chinese medicinal materials from continuing to be transported to the right, while the drain plate in the continuously moving conveying mechanism continues to drive the bristles to move and generate friction on the Chinese medicinal materials to remove impurities on the outer wall thereof.

[0014] 2. The circulating water cleaning and screening device for Chinese medicinal materials, when the downward-moving push plate moves downward, the gear lever is used to block the Chinese medicinal materials, and at the same time, the cleaning belt is rotated to brush the top of the Chinese medicinal materials, so as to further improve the cleaning effect.

[0015] 3. The circulating water cleaning and screening device for Chinese medicinal materials uses the Chinese medicinal materials guided out by the guide plate to guide the medicinal materials, and uses the wind blown out from the upper and lower air outlets to blow away the moisture on the Chinese medicinal materials, thereby improving the cleaning effect.

[0016] 4. The circulating water cleaning and screening device for Chinese medicinal materials uses a supporting mechanism to support the brush plate using an arc-shaped plate installed on a supporting rod. At the same time, the bristles arranged on the brush plate are used to dredge the blocked drain plate when the drain plate pressed down moves toward it. At the same time, the drain plate can be moved by the bristles to improve the cleaning and dredging effect.

[0017] 5. The circulating water cleaning and screening device for Chinese medicinal materials, through the set dredging mechanism, utilizes the set dredging rod to be constantly moved by the connection between the chain and the drain plate, and under the action of the coil spring, when it rotates around the fixed axis, the drain plate is dredged and cleaned by the bristles three to prevent it from being blocked. At the same time, the cleaned water falls downward along the inclined plate and is filtered through the separation holes on the separation belt group. At the same time, the impurities on the separation belt group are scraped off through the waste plate and fall along the waste plate to separate the impurities, so that the water is circulated and pumped out by the water pump to clean the Chinese medicinal materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 It is a schematic diagram of the back structure of the present invention; Figure 3 It is a schematic diagram of the internal structure of the box body of the present invention; Figure 4 It is a schematic diagram of the structure of the conveying mechanism of the present invention; Figure 5 It is a schematic diagram of the structure of the dredging mechanism of the present invention; Figure 6 It is a schematic diagram of the supporting mechanism structure of the present invention; Figure 7 This is a schematic diagram of the exploded structure of the extrusion assembly of the present invention; Figure 8 It is a schematic diagram of the explosion structure of the drainage component of the present invention.

[0019] In the figure: 1, box body; 2, discharge plate; 3, waste plate; 4, circulating water pipe; 41, nozzle; 5, feed plate; 6, conveying mechanism; 61, rotating shaft; 62, sprocket; 63, chain; 64, drain assembly; 641, guide rod; 642, drain plate; 643, brush 1; 65, extrusion assembly; 651, push plate; 652, telescopic rod; 653, gear lever; 654, roller; 655, cleaning belt; 656, Gear box; 657, elliptical wheel; 658, motor; 7, air-drying mechanism; 71, guide plate; 72, upper air outlet; 73, lower air outlet; 8, supporting mechanism; 81, supporting rod; 82, arc plate; 83, brush plate; 84, bristle 2; 9, dredging mechanism; 91, fixed shaft; 92, dredging rod; 93, coil spring; 94, bristle 3; 10, separation mechanism; 101, inclined plate; 102, separation belt group; 11, belt box. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the 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.

[0021] See also Figure 1-8 One embodiment of the present invention is: a circulating water cleaning and screening device for Chinese medicinal materials, comprising a box 1, and also comprising: The discharge plate 2 is arranged on the right side of the box body 1 and is used to discharge the cleaned Chinese medicinal materials; The waste plate 3 is arranged on the right side of the box body 1 and below the discharge plate 2, and is used to discharge impurities; A circulating water pipe 4 is installed on the top of the box 1, and its bottom is connected to the bottom of the box 1, and the water at the bottom of the box 1 is pumped upward by a water pump; A feed plate 5 is arranged on the left side of the box body 1 and is used to place the Chinese medicinal materials to be cleaned; The conveying mechanism 6 is arranged inside the box body 1 and connected to the feed plate 5 and the discharge plate 2 at the head and tail, respectively, for conveying Chinese medicinal materials; The air drying mechanism 7 is arranged in the box body 1 and is used to blow away the moisture on the surface of the medicinal materials; The separation mechanism 10 is disposed in the housing 1 and is used to separate impurities in the water and to circulate and extract water to wash the Chinese medicinal materials; Wherein, the conveying mechanism 6 comprises: Two rotating shafts 61 are respectively mounted on the inner wall of the box body 1, and the back sides thereof extend outwardly into the belt box 11 mounted on the back side of the box body 1; A plurality of sprockets 62 are respectively fixedly mounted on the outer walls of the two rotating shafts 61; Two sets of chains 63 are respectively wound around the outer wall of the sprocket 62; The drain assembly 64 is disposed between the front and rear chains 63 and follows the transmission to drain water during cleaning; The squeezing component 65 is disposed on the top of the inner wall of the box body 1 and is used to squeeze the Chinese medicinal materials downwards to generate friction with the draining component 64 to clean the impurities on the outer wall of the Chinese medicinal materials.

[0022] Working principle: Chinese medicinal materials are placed on the feed plate 5, and enter the conveying mechanism 6 in the box body 1 along the feed plate 5. At this time, the rotating shaft 61 is driven to rotate by the external power equipment installed in the belt box 11, and the chain 63 is driven to rotate through the sprocket 62, and the drain component 64 is driven to rotate synchronously, so that the Chinese medicinal materials are transported to the right side and are sprayed with water by the nozzle 41 installed above. At the same time, the Chinese medicinal materials are squeezed by the intermittent downward pressing extrusion component 65, and the impurities on the outer wall of the Chinese medicinal materials are removed by friction through the drain component 64.

[0023] See also Figure 1-8 Based on the above embodiment, in another embodiment of the present invention, the drain assembly 64 includes: A plurality of guide rods 641 are respectively connected to the hinges of the front and rear sets of chains 63; The drain plate 642 is in an "n" shape and is sequentially sleeved on the outer wall of the guide rod 641 and rotates with the chain 63; A plurality of bristles 643 are connected to the top of the drain plate 642 and are used to cooperate with the downward pressing component 65 to rub and scrub the Chinese medicinal materials.

[0024] Working principle: First, the Chinese medicinal materials are moved by the transmission drain plate 642. At this time, after the extrusion component 65 is pressed down, the movement of the Chinese medicinal materials is restricted, and the brush 643 on it is driven by the continued movement of the drain plate 642 to continuously move, generating friction under the Chinese medicinal materials for cleaning, so as to better remove impurities on the outer wall of the Chinese medicinal materials.

[0025] See also Figure 1-8 Based on the above embodiment, in another embodiment of the present invention, the extrusion assembly 65 includes: The push plate 651 is pressed downward and connected to the top of the inner wall of the box body 1 through the telescopic rod 652 connected to the top of the push plate 651; The stopper rod 653 is connected to the bottom right side of the push plate 651 to prevent the Chinese medicinal materials from moving to the right side; A plurality of rollers 654 are rotatably connected in the mounting grooves provided in the push plate 651; A cleaning belt 655 is connected to the outer wall of the drum 654 and is used to clean the Chinese medicinal materials from above; Two gear boxes 656 are installed on the top of the push plate 651, and a motor 658 is provided on one side of the rear gear box 656; A rotating rod is installed between the two gear boxes 656, and the rollers 654 on both sides are connected to the rotating rod through a belt drive; The elliptical wheel 657 is fixedly sleeved on the outer wall of the rotating rod, and its outer wall contacts the top of the inner wall of the box body 1, so as to push the downward push plate 651 to move downward.

[0026] Working principle: By starting the motor 658, the elliptical wheel 657 is driven to rotate. At this time, by constantly resisting the top of the inner wall of the box body 1 and cooperating with the telescopic rod 652, the downward push plate 651 is pushed to produce an up and down effect, and then the coordinated gear lever 653 is used to limit the Chinese medicinal materials from continuing to move to the right. At the same time, the belt transmission is used to drive the cleaning belt 655 to roll, so as to achieve brushing of the top of the Chinese medicinal materials, thereby improving the cleaning effect.

[0027] See also Figure 1-8 Based on the above embodiment, in another embodiment of the present invention, the air-drying mechanism 7 includes: The material guide plate 71 is fixedly connected in the box body 1, and its left side is attached to the top of the drain plate 642, and is used for guiding materials. A plurality of ventilation holes are provided on the material guide plate 71; The upper air inlet 72 and the lower air inlet 73 are installed in the box body 1 and are respectively located above and below the material guide plate 71, and are connected to the fan installed on the top of the box body 1 to blow away the moisture on the surface of the Chinese medicinal materials.

[0028] Working principle: Gas is blown in through the fan and blown out through the upper air port 72 and the lower port 73 respectively, the cleaned Chinese medicinal materials are pushed out along the guide plate 71, and blown through the upper air port 72 and the lower port 73 to blow away the moisture on the Chinese medicinal materials.

[0029] See also Figure 1-8 Based on the above embodiment, in another embodiment of the present invention, the supporting mechanism 8 includes: A plurality of support rods 81 are installed on the inner wall of the box body 1 and located inside the chain 63 to support the chain 63; A plurality of arc-shaped plates 82, both ends of which are respectively inserted into the slots provided in the support rods 81; The brush plate 83 is installed on the top of the arc plate 82, and a plurality of bristles 84 are connected to the top of the brush plate 83 for clearing the drain plate 642.

[0030] Working principle: When the push plate 651 moves downward, it pushes the chain 63 downward, and after contacting the bristles 84 and the brush plate 83, it squeezes the arc plate 82 to limit the chain 63 from being damaged by excessive downward movement. At the same time, the chain 63 moves downward, driving the drain plate 642 to contact the bristles 84, which can also clean it to avoid clogging of the drain plate 642.

[0031] See also Figure 1-8 On the basis of the above embodiment, in another embodiment of the present invention, a dredging mechanism 9 is provided inside the box 1 for dredging the drain plate 642, and the dredging mechanism 9 includes: A fixed shaft 91 is fixedly connected to the inner wall of the box body 1; The dredging rod 92 is rotatably connected to the outer wall of the fixed shaft 91, and a plurality of bristles 94 are installed below the dredging rod 92 and fit with the drain plate 642; A plurality of coil springs 93 are sleeved on the outer wall of the dredging rod 92 and are respectively located on both sides of the dredging rod 92 , and are used to reset the dredging rod 92 to rotate around the fixed axis 91 .

[0032] The separation mechanism 10 comprises: Two inclined plates 101 are connected to the inner wall of the box body 1; A separation belt assembly 102 is installed on the inner wall of the housing 1, and a plurality of separation holes are provided on the belt to separate impurities and water; The separation belt set 102 is connected to one of the rotating shafts 61 through a pulley set arranged in the belt box 11, so as to drive synchronous rotation.

[0033] The water outlet end of the circulating water pipe 4 is connected to the interior of the box body 1 , and is connected to a plurality of spray heads 41 arranged side by side and facing the top of the drain assembly 64 .

[0034] Working principle: When the chain 63 rotates, it drives the drain plate 642 to move, and the connection between the chain 63 and the drain rod 92 is continuously driven to rotate around the fixed axis 91, and reset under the action of the coil spring 93, and then when rotating around the fixed axis 91, the drain plate 642 is cleared and cleaned through the bristles 94 to prevent it from being blocked. At the same time, the cleaned water falls downward along the inclined plate 101, and is filtered through the separation holes on the separation belt group 102. At the same time, the impurities on the separation belt group 102 are scraped off through the waste plate 3, and fall along the waste plate 3, thereby separating the impurities, so that the water is circulated and pumped out by the water pump to clean the Chinese medicinal materials.

[0035] The present invention provides a circulating water cleaning and screening device for Chinese medicinal materials. There are many methods and ways to implement the technical solution. The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention. All components not specified in this embodiment can be implemented by existing technologies.

Claims

1. A circulating water cleaning and screening device for Chinese medicinal materials, comprising a housing (1), characterized in that: Also includes: A discharge plate (2) is arranged on the right side of the box body (1) and is used to discharge the cleaned Chinese medicinal materials; A waste plate (3) is arranged on the right side of the box body (1) and below the discharge plate (2) and is used to discharge impurities; A circulating water pipe (4) is installed on the top of the box (1), the bottom of which is connected to the bottom of the box (1), and the water at the bottom of the box (1) is pumped upwards by a water pump; A feed plate (5) is arranged on the left side of the box body (1) and is used to place the Chinese medicinal materials to be cleaned; A conveying mechanism (6) is arranged inside the box body (1) and is connected to the feed plate (5) and the discharge plate (2) at the head and tail, respectively, for conveying Chinese medicinal materials; An air drying mechanism (7) is disposed in the box (1) and is used to blow away moisture on the surface of the medicinal materials; A separation mechanism (10) is disposed in the box (1) and is used to separate impurities in the water so as to circulate and extract water to rinse the Chinese medicinal materials; Wherein, the conveying mechanism (6) comprises: Two rotating shafts (61) are respectively mounted on the inner wall of the box body (1), and the back sides of the rotating shafts (61) extend outwardly into a belt box (11) mounted on the back side of the box body (1); A plurality of sprockets (62) are respectively fixedly mounted on the outer walls of the two rotating shafts (61); Two groups of chains (63) are respectively wound around the outer wall of the sprocket (62); A drain assembly (64) is disposed between the front and rear chains (63) and follows the transmission, and is used for draining water during cleaning; The squeezing component (65) is arranged on the top of the inner wall of the box body (1) and is used to squeeze the Chinese medicinal materials downwards to generate friction with the draining component (64) so ​​as to clean impurities on the outer wall of the Chinese medicinal materials.

2. A circulating water cleaning and screening device for Chinese medicinal materials according to claim 1, characterized in that: The drain assembly (64) comprises: A plurality of guide rods (641) are respectively connected to the hinges of the front and rear groups of chains (63); The drain plates (642) are in an "n" shape and are sequentially sleeved on the outer wall of the guide rod (641) and rotate along with the chain (63); A plurality of brush bristles (643) are connected to the top of the drain plate (642) and are used to cooperate with the downward pressing extrusion component (65) to rub and scrub the Chinese medicinal materials.

3. A circulating water cleaning and screening device for Chinese medicinal materials according to claim 2, characterized in that: The extrusion assembly (65) comprises: A downward push plate (651) is connected to the top of the inner wall of the box body (1) via a telescopic rod (652) connected to the top of the push plate; A stop rod (653) connected to the bottom right side of the push plate (651) for preventing the Chinese medicinal materials from moving to the right side; A plurality of rollers (654) are rotatably connected to the mounting grooves provided in the downward push plate (651); A cleaning belt (655) is drivingly connected to the outer wall of the drum (654) and is used for cleaning the Chinese medicinal materials from above; Two gear boxes (656) are installed on the top of the push plate (651), and a motor (658) is provided on one side of the rear gear box (656); A rotating rod is installed between the two gear boxes (656), and the rollers (654) on both sides are connected to the rotating rod via a belt drive; The elliptical wheel (657) is fixedly sleeved on the outer wall of the rotating rod, and its outer wall contacts the top of the inner wall of the box body (1), and is used to push the downward push plate (651) to move downward.

4. The circulating water cleaning and screening device for Chinese medicinal materials according to claim 3, characterized in that: The air-drying mechanism (7) comprises: A material guide plate (71) is fixedly connected to the box body (1), with its left side affixed to the top of the drain plate (642) for guiding materials, and a plurality of ventilation holes are provided on the material guide plate (71); The upper air inlet (72) and the lower air inlet (73) are installed in the box body (1) and are respectively located above and below the material guide plate (71), and are connected to a fan installed on the top of the box body (1) to blow away moisture on the surface of the Chinese medicinal materials.

5. A circulating water cleaning and screening device for Chinese medicinal materials according to claim 4, characterized in that: The supporting mechanism (8) comprises: A plurality of support rods (81) mounted on the inner wall of the box body (1) and located inside the chain (63) for supporting the chain (63); A plurality of arc-shaped plates (82), both ends of which are respectively inserted into slots provided in the support rod (81); A brush plate (83) is installed on the top of the arc-shaped plate (82), and a plurality of bristles (84) are connected to the top of the brush plate to clear the drain plate (642).

6. A circulating water cleaning and screening device for Chinese medicinal materials according to claim 5, characterized in that: A dredging mechanism (9) is provided inside the box (1) for dredging the drain plate (642), and the dredging mechanism (9) comprises: A fixed shaft (91) fixedly connected to the inner wall of the box body (1); A dredging rod (92) is rotatably connected to the outer wall of the fixed shaft (91), a plurality of bristles (94) are installed below the dredging rod (92) and is in contact with the drain plate (642); A plurality of coil springs (93) are sleeved on the outer wall of the dredging rod (92) and are respectively located on both sides of the dredging rod (92) and are used to reset the dredging rod (92) to rotate around the fixed axis (91).

7. A circulating water cleaning and screening device for Chinese medicinal materials according to claim 6, characterized in that: The separation mechanism (10) comprises: Two inclined plates (101) connected to the inner wall of the box body (1); A separation belt group (102) is installed on the inner wall of the box body (1), and a plurality of separation holes are provided on the belt for separating impurities and water; The separation belt group (102) is connected to one of the rotating shafts (61) via a belt pulley group arranged in the belt box (11) for driving synchronous rotation.

8. The circulating water cleaning and screening device for Chinese medicinal materials according to claim 7, characterized in that: The water outlet end of the circulating water pipe (4) is connected to the interior of the box body (1), and is connected to a plurality of spray heads (41) arranged side by side, and faces the top of the drain assembly (64).

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