A sieving device for the production of traditional Chinese medicine tablets

Abstract

This utility model discloses a sieving device for the production of traditional Chinese medicine tablets, relating to the field of traditional Chinese medicine tablet production technology. It includes a sieving chamber, with a fixed plate fixedly connected to one end of the inner side of the sieving chamber. An inclined screen is arranged above the fixed plate. Springs are fixedly connected to both sides of the downwardly inclined end of the screen, with the lower end of each spring fixedly connected to the fixed plate. The upwardly inclined end of the screen is rotatably connected to the rear side of the inner wall of the sieving chamber. A vibrating motor is fixedly installed on the lower surface of the screen. Linear motors are fixedly installed on both sides of the top surface inside the sieving chamber. Telescopic mechanisms are slidably installed on both linear motors. In this utility model, when a roller moves on the surface of the screen, friction occurs between the outer wall and the screen, causing the inner wall of the roller to rotate within a movable ring. This crushes and disperses the powder on the screen surface, preventing the powder from clumping and blocking the screen during sieving.

Description

Technical Field

[0001] This utility model relates to the field of traditional Chinese medicine tablet production technology, specifically a sieving device for traditional Chinese medicine tablet production. Background Technology

[0002] Traditional Chinese medicine tablets are solid dosage forms made from extracts, active ingredients, or fine powders of Chinese medicinal herbs as the main raw materials, with the addition of appropriate excipients, and processed through mixing, granulation, tableting, and other processes. They are mainly used for the treatment of diseases. In the process of making traditional Chinese medicine tablets, sieving is a key step, mainly used to ensure that the drug and excipient particles are of the same size, to avoid uneven distribution of components, to remove coarse particles, clumps, or foreign matter, and to improve purity.

[0003] Existing sieving devices for Chinese medicine tablets typically employ a vibrating screen structure. The vibrating screen generates high-frequency vibration by driving an eccentric block with a motor, causing the powder to jump on the screen. Fine particles fall through the screen holes into the lower layer, while coarse particles are discharged along the screen surface, achieving graded screening. However, some medicinal materials containing polysaccharides have poor flowability after absorbing moisture, and they are prone to sticking together during sieving, which not only clogs the screen but also reduces work efficiency. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a sieving device for the production of traditional Chinese medicine tablets, which solves the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a sieving device for producing traditional Chinese medicine tablets, comprising a sieving chamber, a fixed plate fixedly connected to one end of the inner side of the sieving chamber, an inclined screen disposed above the fixed plate, springs fixedly connected to both sides of the downwardly inclined end of the screen, the lower end of the springs fixedly connected to the fixed plate, the upwardly inclined end of the screen rotatably connected to the rear side of the inner wall of the sieving chamber, a vibrating motor fixedly mounted on the lower surface of the screen, linear motors fixedly mounted on both sides of the top surface inside the sieving chamber, telescopic mechanisms slidably mounted on both linear motors, movable rings provided at the ends of the telescopic mechanisms, and rollers rotatably mounted between the two movable rings in contact with the surface of the screen, the rollers being used to crush large particles of raw material on the surface of the screen, and the telescopic mechanisms being used to keep the rollers always in contact with the surface of the screen.

[0006] The telescopic mechanism includes a sleeve slidably mounted on the linear motor. An extension rod is vertically inserted into the inner side of the sleeve. A spring is provided between the upper end of the extension rod and the top surface of the inner side of the sleeve. A movable ring is fixedly connected to the lower end of the extension rod. The movable ring is rotatably connected to the end of the roller.

[0007] The screening chamber is equipped with a crushing tank on its upper side. The bottom of the crushing tank has several material leakage holes. The crushing tank is equipped with a crushing mechanism inside the crushing tank, which is used to crush the raw materials.

[0008] The crushing mechanism includes a rotating shaft rotatably mounted inside the crushing tank. A drive motor is installed at the bottom of the crushing tank. The output end of the drive motor is fixedly connected to the rotating shaft. Several crushing blades are fixedly connected to the outer wall of the rotating shaft.

[0009] A conical block is fixedly connected to the bottom of the inner wall of the crushing tank, and the rotating shaft passes through the center of the conical block.

[0010] The device also includes a drying mechanism, which includes an annular air storage chamber. The air storage chamber is fixedly installed on the upper side inside the crushing tank. Several nozzles are fixedly connected to the lower surface of the air storage chamber. A heat pump dryer is fixedly installed at the upper end of the screening chamber. The air outlet of the heat pump dryer is connected to the air storage chamber through a pipe.

[0011] The screening chamber has a drawer movably installed on its lower side, which is located directly below the screen, and a handle is fixedly connected to the front of the drawer.

[0012] The screening chamber has a discharge port on its front side, which is located at the downward-sloping end of the screen.

[0013] This utility model provides a sieving device for the production of traditional Chinese medicine tablets, which has the following beneficial effects:

[0014] 1. In this utility model, when the roller moves on the surface of the screen, the outer wall of the roller rubs against the screen, causing the inner wall of the roller to rotate inside the movable ring, thereby crushing and dispersing the powder on the screen surface, preventing the powder from clumping and being unable to pass through the screen or clogging the screen during the sieving process.

[0015] 2. This utility model, by setting up a drying mechanism, uses a heat pump dryer to generate hot air. After the hot air enters, it is sprayed out, which can dry the raw materials being pulverized inside the pulverizing tank, so that the pulverized medicine powder is in a dry state and can more easily pass through the leakage hole and screen. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the cross-sectional structure of the screening chamber of this utility model;

[0018] Figure 3 This is a side sectional view of the pulverizing tank of this utility model;

[0019] Figure 4 This is a side sectional view of the screening chamber of this utility model.

[0020] In the diagram: 1. Screening bin; 11. Fixed plate; 2. Screen; 21. Vibrating motor; 3. Spring 1; 4. Linear motor; 5. Telescopic mechanism; 51. Sleeve; 52. Extension rod; 53. Spring 2; 54. Movable ring; 6. Roller; 7. Crushing tank; 71. Material leakage hole; 8. Crushing mechanism; 81. Rotating shaft; 82. Drive motor; 83. Crushing blade; 9. Drying mechanism; 91. Air storage chamber; 92. Nozzle; 93. Heat pump dryer; 100. Conical block; 110. Drawer; 111. Handle; 120. Discharge port. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Please see Figures 1 to 4 This utility model provides a technical solution: a sieving device for the production of traditional Chinese medicine tablets, including a sieving chamber 1, a fixed plate 11 fixedly connected to one end of the inner side of the sieving chamber 1, an inclined screen 2 set above the fixed plate 11, springs 3 fixedly connected to both sides of the downward inclined end of the screen 2, the lower end of the springs 3 fixedly connected to the fixed plate 11, the upward inclined end of the screen 2 rotatably connected to the rear side of the inner wall of the sieving chamber 1, a vibration motor 21 fixedly installed on the lower surface of the screen 2, linear motors 4 fixedly installed on both sides of the inner top surface of the sieving chamber 1, a telescopic mechanism 5 slidably installed on each of the two linear motors 4, a movable ring 54 provided at the end of the telescopic mechanism 5, a roller 6 rotatably installed between the two movable rings 54 and in contact with the surface of the screen 2, the roller 6 is used to crush large particles of raw material on the surface of the screen 2, and the telescopic mechanism 5 is used to keep the roller 6 always in contact with the surface of the screen 2;

[0023] The fixed plate 11 is fixedly connected to the inner wall of the screening chamber 1, and is used to install spring 3. One end of the screen 2 is connected to the fixed plate 11 via spring 3, and the other end of the screen 2 is rotatably connected to the side of the fixed plate 11 inside the screening chamber 1. The side of the screen 2 located on the fixed plate 11 is set lower than the side of the screen 2 rotatably connected to the screening chamber 1, so that the lower side of the screen 2 shakes up and down with spring 3 under the vibration wave of the vibrating motor 21. This causes the powder on the surface of the screen 2 to shake and fall down the screen 2. During the shaking process of the screen 2, raw materials that do not meet the pulverization requirements slide down the slope of the screen 2. The linear motor 4 inside the screening chamber 1 can drive the roller 6 to move back and forth on the surface of the screen 2. The telescopic mechanism 5 between the linear motor 4 and the roller 6 ensures that the roller 6 is always in close contact with the surface of the screen 2. During the movement of the roller 6, there is a certain friction between the outer wall of the roller 6 and the surface of the screen 2. When the outer wall of the roller 6 rolls on the surface of the screen 2, the inner wall of the roller 6, which is locked inside the movable ring 54, rotates, thereby crushing the raw material powder on the screen 2. This prevents the raw material powder from sticking together and breaks up the already stuck raw material powder, making it easier for the raw material powder to pass through the screen 2, while also preventing the screen 2 from clogging.

[0024] The telescopic mechanism 5 includes a sleeve 51 that is slidably mounted on the linear motor 4. An extension rod 52 is vertically inserted into the inner side of the sleeve 51. A spring 53 is provided between the upper end of the extension rod 52 and the inner top surface of the sleeve 51. A movable ring 54 is fixedly connected to the lower end of the extension rod 52. The movable ring 54 is rotatably connected to the end of the roller 6.

[0025] The telescopic mechanism 5 is provided with a sleeve 51 and an extension rod 52 inside the sleeve 51. The extension rod 52 passes through the opening on the lower side of the sleeve 51 and is fixedly connected to the movable ring 54. The movable ring 54 has an installation hole at one end, so that the inner wall of the roller 6 can be locked inside the movable ring 54. A second spring 53 is provided in the gap between the extension rod 52 and the sleeve 51. When the movable ring 54 is on the higher side of the screen 2, the extension rod 52 squeezes the second spring 53 inside the sleeve 51 and moves it upward. When the movable ring 54 moves to the lower side of the screen 2, the tension of the second spring 53 pushes the extension rod 52 downward, so that the two movable rings 54 are always in close contact with the frame on both sides of the screen 2 surface.

[0026] Among them, a crushing tank 7 is provided on the upper side of the screening chamber 1, and several material leakage holes 71 are opened at the bottom of the crushing tank 7. A crushing mechanism 8 is provided inside the crushing tank 7, and the crushing mechanism 8 is used to crush raw materials.

[0027] The top of the crushing tank 7 is provided with a feeding port, and a removable sealing cover is installed on the feeding port. During operation, the sealing cover can be removed from the top of the crushing tank 7, and the raw material can be fed into the inside of the crushing tank 7 through the feeding port. The crushing mechanism 8 can crush large pieces of raw material inside the crushing tank 7. The crushed raw material powder can pass through several leakage holes 71 opened at the bottom of the crushing tank 7 and fall onto the surface of the screen 2.

[0028] The crushing mechanism 8 includes a rotating shaft 81 rotatably installed inside the crushing tank 7, a drive motor 82 installed at the bottom of the crushing tank 7, the output end of the drive motor 82 being fixedly connected to the rotating shaft 81, and a number of crushing blades 83 being fixedly connected to the outer wall of the rotating shaft 81.

[0029] Driven by the drive motor 82, the rotating shaft 81 rotates inside the crushing tank 7. Several crushing blades 83 on the surface of the rotating shaft 81 rotate with the rotating shaft 81, turning over the large pieces of raw material and crushing them.

[0030] Among them, a conical block 100 is fixedly connected to the bottom of the inner wall of the crushing tank 7, and a rotating shaft 81 passes through the center of the conical block 100;

[0031] The cone block 100 is set as a slope, so that the crushed raw material powder can slide down the cone block 100 to the material leakage hole 71 opened at the bottom of the crushing tank 7, thus avoiding the accumulation of raw material powder in the middle of the bottom of the crushing tank 7.

[0032] It also includes a drying mechanism 9, which includes an annular air storage chamber 91. The air storage chamber 91 is fixedly installed on the upper side inside the crushing tank 7. Several nozzles 92 are fixedly connected to the lower surface of the air storage chamber 91. A heat pump dryer 93 is fixedly installed at the upper end of the screening chamber 1. The air outlet of the heat pump dryer 93 is connected to the air storage chamber 91 through a pipe.

[0033] An annular air storage chamber 91 is installed inside the crushing tank 7. The outer wall of the air storage chamber 91 is fitted with the inner wall of the crushing tank 7, and the middle is hollow, so that large pieces of raw materials can enter the crushing tank 7 smoothly without being affected when they are fed in. Several nozzles 92 are installed on the lower side of the air storage chamber 91. When the heat pump dryer 93 generates hot air, the hot air can enter the interior of the air storage chamber 91 through the air outlet on the heat pump dryer 93 and be sprayed out through the nozzles 92 to dry the large pieces of raw materials being crushed and the crushed raw material powder, so that the raw material powder can more easily pass through the material leakage hole 71 opened at the bottom of the crushing tank 7.

[0034] Among them, a drawer 110 is movably provided on the lower side of the screening chamber 1. The drawer 110 is located directly below the screen 2, and a handle 111 is fixedly connected to the front side of the drawer 110.

[0035] After the raw material powder passes through the sieve 2, it will fall into the inside of the drawer 110 for collection. The drawer 110 can be pulled out by using the handle 111 as a point of force to collect the raw material powder inside the drawer 110 that meets the usage requirements for later use.

[0036] Among them, the screening chamber 1 is provided with a discharge port 120 on the front side, and the discharge port 120 is located at the downward inclined end of the screen 2;

[0037] The clumps of raw material that slide out along the slope of screen 2 can be collected at the discharge port 120 and then crushed and screened again.

[0038] In summary, when using this utility model, firstly, drive the equipment to put it into operation. Then, remove the sealing cover from the top of the crushing tank 7. Next, put large pieces of raw material into the crushing tank 7 and replace the sealing cover on top of the crushing tank 7. At this time, the heat pump dryer 93 starts working, continuously generating hot air and delivering it to the air storage chamber 91 through the conveying pipe of the heat pump dryer 93. The hot air is then sprayed into the crushing tank 7 through the nozzle 92. At the same time, the drive motor 82 drives the rotating shaft 81 to rotate, and the crushing blades 83 on the surface of the rotating shaft 81 rotate simultaneously, stirring, crushing, and drying the large pieces of raw material to form raw material powder. During this process, under the tumbling of the crushing blades 83, the raw material powder slides down the conical block 100 and falls through the material leakage hole 71 at the bottom of the crushing tank onto the surface of the screen 2 inside the screening chamber 1. At this time, the vibration motor 21 continuously vibrates, and with the cooperation of the spring 3, the screen 2 is in a state of continuous shaking, so that the raw material powder is on the screen 2. The raw material powder shakes and falls through the gaps in the screen 2 into the drawer 110. At this point, the raw material powder is removed from the drying and heating environment and is prone to sticking and clumping. Therefore, the linear motor 4 continuously drives the roller 6 to move back and forth on the surface of the screen 2, and the extension mechanism keeps the roller 6 close to the surface of the screen 2. When the outer wall of the roller 6 moves on the surface of the screen 2, it generates friction with the surface of the screen 2. The inner wall of the roller 6 rotates inside the extension mechanism 5, thereby breaking up the raw material powder clumping on the surface of the screen 2, making it easier for the raw material powder to fall through the gaps in the screen 2 into the drawer 110 for collection. Then, the handle 111 is used as the point of force to pull the drawer 110 out from the inside of the screening chamber 1, and the raw material powder that meets the requirements can be taken out. This device crushes and breaks up the raw material powder on the screen 2 and is equipped with a drying device to avoid the raw material powder sticking as much as possible while breaking up the sticking raw material powder, making it easier for the raw material powder to fall through the gaps in the screen 2 and avoiding clogging of the screen 2.

[0039] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A sieving device for traditional Chinese medicine tablet production, comprising a screening bin (1), characterized in that: A fixed plate (11) is fixedly connected to one end of the inner side of the screening chamber (1). An inclined screen (2) is set above the fixed plate (11). Springs (3) are fixedly connected to both sides of the downward inclined end of the screen (2). The lower end of the springs (3) is fixedly connected to the fixed plate (11). The upward inclined end of the screen (2) is rotatably connected to the rear side of the inner wall of the screening chamber (1). A vibration motor (21) is fixedly installed on the lower surface of the screen (2). Linear motors (4) are fixedly installed on both sides of the top surface inside the screening chamber (1). A telescopic mechanism (5) is slidably installed on both linear motors (4). A movable ring (54) is provided at the end of the telescopic mechanism (5). A roller (6) is rotatably installed between the two movable rings (54) and contacts the surface of the screen (2). The roller (6) is used to crush large particles of raw material on the surface of the screen (2). The telescopic mechanism (5) is used to keep the roller (6) in contact with the surface of the screen (2).

2. The sieving device for traditional Chinese medicine tablet production according to claim 1, characterized in that: The telescopic mechanism (5) includes a sleeve (51) slidably mounted on the linear motor (4). An extension rod (52) is vertically inserted into the inner side of the sleeve (51). A spring (53) is provided between the upper end of the extension rod (52) and the top surface of the inner side of the sleeve (51). A movable ring (54) is fixedly connected to the lower end of the extension rod (52). The movable ring (54) is rotatably connected to the end of the roller (6).

3. The sieving device for traditional Chinese medicine tablet production according to claim 1, characterized in that: The screening chamber (1) is provided with a crushing tank (7) on the upper side. The bottom of the crushing tank (7) is provided with several material leakage holes (71). The crushing mechanism (8) is provided inside the crushing tank (7). The crushing mechanism (8) is used to crush raw materials.

4. The sieving device for traditional Chinese medicine tablet production according to claim 3, characterized in that: The crushing mechanism (8) includes a rotating shaft (81) rotatably installed inside the crushing tank (7). A drive motor (82) is installed at the bottom of the crushing tank (7). The output end of the drive motor (82) is fixedly connected to the rotating shaft (81). Several crushing blades (83) are fixedly connected to the outer wall of the rotating shaft (81).

5. The sieving device for traditional Chinese medicine tablet production according to claim 4, characterized in that: A conical block (100) is fixedly connected to the bottom of the inner wall of the crushing tank (7), and the rotating shaft (81) passes through the center of the conical block (100).

6. The sieving device for traditional Chinese medicine tablet production according to claim 3, characterized in that: It also includes a drying mechanism (9), which includes an annular air storage chamber (91). The air storage chamber (91) is fixedly installed on the upper side inside the crushing tank (7). Several nozzles (92) are fixedly connected to the lower surface of the air storage chamber (91). A heat pump dryer (93) is fixedly installed at the upper end of the screening chamber (1). The air outlet of the heat pump dryer (93) is connected to the air storage chamber (91) through a pipe.

7. The sieving device for traditional Chinese medicine tablet production according to claim 6, characterized in that: A drawer (110) is movably provided on the lower side of the screening chamber (1). The drawer (110) is located directly below the screen (2). A handle (111) is fixedly connected to the front side of the drawer (110).

8. The sieving device for traditional Chinese medicine tablet production according to claim 1, characterized in that: The screening chamber (1) is provided with a discharge port (120) on the front side, and the discharge port (120) is located at the downward inclined end of the screen (2).

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