A powder fineness adjustable grinding equipment

Abstract

The present application relates to the technical field of grinding, in particular to a powder fineness adjustable grinding equipment. It comprises a chassis, a air supply part fixedly connected to the chassis, a fixed shell fixedly connected to the air supply part, a gas inlet provided between the fixed shell and the air supply part for gas circulation, an analyzer fixedly connected to the fixed shell, and a feeding shell fixedly connected to one side of the fixed shell. The present application can change the grinding mode in time to grind the medicine raw materials, and can process the medicine raw materials with different particle sizes, for example, when processing the medicine raw materials with large particle size, the working principle of simulating tooth occlusion is adopted to preferentially "bite and crush" the medicine raw materials with large particle size, and when the medicine raw materials with large particle size are broken into small particle size, the gradual extrusion method is adopted to gradually increase the grinding intensity of the small particle size medicine raw materials, so as to enhance the overall grinding efficiency of the medicine raw materials.

Description

Technical Field

[0001] This invention relates to the field of grinding technology, and in particular to a powder grinding equipment with adjustable powder fineness. Background Technology

[0002] Grinding equipment refers to a type of mechanical equipment that grinds pharmaceutical raw materials, chemicals, food raw materials, etc., into powder. Commonly used pharmaceutical raw materials include plant-based medicinal materials, animal-based medicinal materials, and mineral-based medicinal materials. Due to the high hardness of mineral-based medicinal materials, special processing is required.

[0003] Existing grinding equipment can be divided into many types, such as Raymond mill, ball mill and vertical mill. Among them, Raymond mill is a type of equipment specifically designed for grinding mineral materials.

[0004] The Raymond mill mainly consists of a main unit, an analyzer, an air supply casing, a grinding device, and a transfer device. When grinding pharmaceutical raw materials, the Raymond mill needs to grind the raw materials into fine powder. Then, the air supply device transports the powder to the analyzer. Powder that meets the required particle size is discharged through the analyzer, while powder that does not meet the required particle size is reintroduced into the main unit by the analyzer.

[0005] However, the size of the raw materials varies. When the grinding device squeezes large pieces of raw materials, the distance between the grinding roller and the grinding ring in the grinding equipment is small (the purpose of the small distance is to grind the raw materials into powder). When the grinding roller and the grinding ring are grinding the large pieces of raw materials, the large pieces of raw materials may slip out from the grinding roller and the grinding ring. Therefore, the large pieces of raw materials cannot be ground in time, thus affecting the overall efficiency of grinding the raw materials. Summary of the Invention

[0006] To address the problem that when Raymond mills grind pharmaceutical raw materials, the different sizes of the raw materials cause them to slip out between the grinding rollers and grinding rings, resulting in large pieces of raw materials not being ground in time, this invention provides a powder fineness adjustable grinding device.

[0007] The technical solution of the present invention is as follows: A powder fineness adjustable grinding device, comprising: a base frame; an air supply component fixedly connected to the base frame; a fixed shell fixedly connected to the air supply component, wherein an air inlet for providing gas flow is provided between the fixed shell and the air supply component; an analyzer fixedly connected to the fixed shell; a feed shell fixedly connected to and communicating with one side of the fixed shell; and a bottom plate fixedly connected to the side of the air supply component near the base frame.

[0008] A first driving component is disposed within the base frame, and the power output part of the first driving component passes through the base plate and rotates with it;

[0009] A rotating plate is fixedly connected to the power output part of the first driving member, and the rotating plate is located inside the air supply member; a first rotating shell is fixedly connected to the upper side of the rotating plate; a second rotating shell is fixedly connected to the upper side of the first rotating shell;

[0010] A hammering part is disposed on the second rotating shell, and the hammering part is used to grind the pharmaceutical raw materials inside the fixed shell;

[0011] A shielding part is provided on the base plate, and the shielding part is used to shield the air inlet between the fixed shell and the air supply component;

[0012] The drive unit is located inside the base frame. The drive unit is used to change the hammering method of the hammering part on the pharmaceutical raw materials and to change the degree of obstruction of the shielding part on the air inlet between the fixed shell and the air supply component.

[0013] Preferably, the hammering part includes:

[0014] A plurality of evenly distributed first liquid-holding components are fixed to the upper side of the second rotating shell to keep the second rotating shell stable during rotation. The second rotating shell is provided with a liquid-holding cavity, and the plurality of evenly distributed first liquid-holding components are all connected to the liquid-holding cavity in the second rotating shell and all contain hydraulic oil.

[0015] A plurality of evenly distributed first sealing elements are slidably connected to adjacent first liquid-containing elements to keep the second rotating shell stable during rotation.

[0016] A number of evenly distributed connectors are fixed to adjacent first seals at positions away from the second rotating shell, in order to keep the second rotating shell stable during rotation.

[0017] A plurality of evenly distributed hammers are rotatably connected to the lower side of adjacent connecting members to keep the second rotating shell stable during rotation. A torsion spring is fixed between each hammer and the adjacent connecting member. The hammers are used to grind pharmaceutical raw materials.

[0018] Preferably, the hammer is fixedly connected to an arc-shaped plate, which is sickle-shaped and used to extrude the pharmaceutical raw materials step by step.

[0019] Preferably, the connector is fixedly connected to several sets of limiting plates, and the several sets of limiting plates are all in a limiting sliding engagement with the second rotating shell. The limiting plates are used to restrict the sliding state of adjacent connectors.

[0020] Preferably, the blocking part includes:

[0021] Several elastic telescopic rods are fixed to the upper side of the base plate;

[0022] A retaining ring is fixed to the telescopic ends of several evenly distributed elastic telescopic rods. A gap is left between the retaining ring and all the arc-shaped plates. A guide ring is fixed to the upper side of the retaining ring. The retaining ring is used to adjust the air intake volume of the air inlet between the fixed shell and the air supply component.

[0023] Several fixed teeth are fixed to the inner side of the retaining ring, and there is a gap between the several fixed teeth and the several evenly distributed arc-shaped plates;

[0024] Several connecting rods are fixed to the upper side of the retaining ring.

[0025] Preferably, the driving unit includes:

[0026] The first connecting frame is fixedly connected inside the fixed shell;

[0027] The second driving component is fixedly connected to the first connecting frame;

[0028] The second connecting frame is fixed to the telescopic end of the second driving member. The symmetrically distributed connecting rods are all pressed and engaged with the second connecting frame, and there is a gap between the symmetrically distributed connecting rods and the second connecting frame.

[0029] Several second seals are fixedly connected to the second connecting frame;

[0030] Several second liquid-containing components are fixedly connected to the first connecting frame, and the second sealing component is slidably engaged with the adjacent second liquid-containing component;

[0031] A connecting ring is fixedly connected to the first connecting frame. The lower side of the connecting ring is rotatably engaged with the second rotating shell and communicates with the liquid-containing cavity inside it. The upper side of the second liquid-containing component is fixedly connected to the connecting ring and communicates with a connecting pipe, both of which contain hydraulic oil.

[0032] As a preferred option, it also includes:

[0033] A transfer section is disposed within the fixed housing. The transfer section is used to transfer pharmaceutical raw materials on the base plate. The transfer section includes:

[0034] Several L-shaped plates are evenly distributed and fixed to the outer side of the rotating plate. The several L-shaped plates are evenly distributed to keep the rotating plate stable during rotation.

[0035] Several evenly distributed arc-shaped shells are fixed to the outer side of the rotating plate. The evenly distributed arc-shaped shells are used to uniformly transfer the pharmaceutical raw materials on the base plate. The arc-shaped shells are fixed to the adjacent L-shaped plates and slide in fit with the base plate. The arc-shaped shells are provided with notches for transferring pharmaceutical raw materials. Arc-shaped blocks are fixed to the inner and outer edges of the arc-shaped shells. The arc-shaped blocks are used to transfer pharmaceutical raw materials.

[0036] Preferably, the upper side of the arc-shaped shell is provided with a protrusion for conveying pharmaceutical raw materials to the adjacent hammering parts without affecting the normal processing of pharmaceutical raw materials by the adjacent hammering parts.

[0037] Preferably, a baffle is slidably connected inside the arc-shaped shell, the baffle being used to block the notches on adjacent arc-shaped shells, and the first rotating shell is provided with a control unit, the control unit being used to adjust the positions of a plurality of evenly distributed baffles on adjacent arc-shaped shells.

[0038] Preferably, the control unit includes:

[0039] A third liquid-holding component, with the same number as the arc-shaped shells, is fixedly connected to and communicates with the first rotating shell, and the first rotating shell communicates with the liquid-holding cavity inside the second rotating shell.

[0040] The third seal is slidably connected to the adjacent third liquid-holding vessel, and the side of the third seal away from the adjacent third liquid-holding vessel is fixedly connected to the adjacent baffle.

[0041] The beneficial effects of this invention are as follows: This invention adopts a timely change of grinding method to achieve grinding of pharmaceutical raw materials while performing corresponding processing according to pharmaceutical raw materials of different particle sizes. For example, when processing pharmaceutical raw materials with large particle sizes, the working principle of simulating tooth biting is adopted to prioritize the "biting crushing" of pharmaceutical raw materials with large particle sizes, so as to facilitate the overall processing of pharmaceutical raw materials. When pharmaceutical raw materials with large particle sizes are broken into a state of small particle size, a gradual extrusion method is adopted to gradually increase the grinding force on pharmaceutical raw materials with small particle sizes, thereby enhancing the overall grinding efficiency of pharmaceutical raw materials.

[0042] When it is necessary to adjust the fineness of the powder discharged after the raw pharmaceutical material has been ground, the fineness of the powder can be adjusted by replacing the analyzer;

[0043] This invention changes the transfer method of existing transfer devices, enabling the transfer device to perform autonomous screening when transferring pharmaceutical raw materials. This prevents small-particle-size pharmaceutical raw materials from being carried away, while large-particle-size pharmaceutical raw materials are more easily carried away, thereby improving the overall grinding efficiency. Attached Figure Description

[0044] Figure 1This is a three-dimensional front view of the present invention;

[0045] Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention from another perspective;

[0046] Figure 3 This is a three-dimensional structural cross-sectional view of the fixing shell of the present invention;

[0047] Figure 4 This is a three-dimensional structural cross-sectional view of the retaining ring of the present invention;

[0048] Figure 5 This is a three-dimensional structural cross-sectional view of the first connecting frame of the present invention;

[0049] Figure 6 This is a three-dimensional structural cross-sectional view of the second rotating shell of the present invention;

[0050] Figure 7 This is a three-dimensional structural diagram of the transfer section of the present invention;

[0051] Figure 8 This is an exploded view of the three-dimensional structure of the transfer part of the present invention.

[0052] The components in the attached diagram are labeled as follows: 10: Base frame, 11: Air supply component, 12: Fixed shell, 13: Analyzer, 14: Feed shell, 15: Base plate, 16: First drive component, 17: Rotating plate, 18: First rotating shell, 19: Second rotating shell, 21: First liquid holding component, 22: First sealing component, 23: Connecting component, 24: Hammering component, 25: Arc-shaped plate, 26: Limiting plate, 31: Elastic telescopic rod, 32: Retaining ring, 33: Fixed tooth, 34: Connecting rod, 41: First connecting frame, 42: Second drive component, 43: Second connecting frame, 44: Second sealing component, 45: Second liquid holding component, 46: Connecting ring, 51: L-shaped plate, 52: Arc-shaped shell, 60: Baffle, 61: Third liquid holding component, 62: Third sealing component. Detailed Implementation

[0053] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings. It is hereby declared that the directional terms such as up, down, left, right, front, back, inside, and outside used in this text are based solely on the accompanying drawings and are not intended to specifically limit the invention.

[0054] To address the problem that when Raymond mills grind pharmaceutical raw materials, the different sizes of the raw materials cause them to slip out between the grinding rollers and the grinding ring, resulting in large pieces of raw materials not being ground in a timely manner.

[0055] This invention employs a timely change of grinding method to simultaneously grind pharmaceutical raw materials and process them according to different particle sizes. For example, when processing large-particle-size pharmaceutical raw materials, a working principle simulating tooth biting is used to prioritize "biting" the large-particle-size pharmaceutical raw materials, thereby facilitating the overall processing of the pharmaceutical raw materials. When the large-particle-size pharmaceutical raw materials are broken down into smaller particles, a gradual extrusion method is used to gradually increase the grinding force on the smaller-particle-size pharmaceutical raw materials, thereby enhancing the overall grinding efficiency of the pharmaceutical raw materials.

[0056] Example 1: A powder fineness adjustable grinding device, such as... Figures 1-6 As shown, the device includes a base frame 10; an air supply component 11 fixedly connected to the base frame 10; a fixed housing 12 fixedly connected to the air supply component 11, with an air inlet for gas flow provided between the fixed housing 12 and the air supply component 11; an analyzer 13 fixedly connected to the fixed housing 12; a feed housing 14 fixedly connected to and connected to one side of the fixed housing 12; a base plate 15 fixedly connected to the side of the air supply component 11 near the base frame 10; a first drive component 16 disposed within the base frame 10, with its power output portion passing through and rotating with the base plate 15; and a rotating plate 17 fixedly connected to the power output portion of the first drive component 16, located on the air supply component 11. 1. Inside the frame: a first rotating shell 18, fixed to the upper side of the rotating plate 17; a second rotating shell 19, fixed to the upper side of the first rotating shell 18, the first rotating shell 18 being located between the second rotating shell 19 and the rotating plate 17; a hammering part, disposed on the second rotating shell 19, used to grind the pharmaceutical raw materials inside the fixed shell 12; a shielding part, disposed on the base plate 15, used to shield the air inlet between the fixed shell 12 and the air supply component 11; a driving part, disposed inside the base frame 10, used to change the hammering method of the hammering part on the pharmaceutical raw materials and to change the degree of shielding of the shielding part on the air inlet between the fixed shell 12 and the air supply component 11.

[0057] The above solutions address the problem of existing Raymond mills grinding pharmaceutical raw materials of varying sizes. Larger particles slip out during grinding, preventing timely grinding and increasing grinding time. The base frame 10 consists of welded U-shaped plates, four triangular support plates, and connecting plates, all made of high-strength steel to ensure stability. The air supply component 11 comprises a guide shell and several evenly distributed guide vanes. The angle of the guide vanes within the air supply component 11 can be adjusted according to operational needs. An inclined surface is provided on the inner side of the air supply component 11 to guide the pharmaceutical raw materials. Before operation, the air outlet of an external air supply device is connected to the front of the air supply component 11 to supply air. The fixed shell 12 is bolted to the air supply component 11, and both are made of high-strength steel. The steel casing 12 provides space for grinding pharmaceutical raw materials. The air inlet between the casing 12 and the air supply component 11 is annular. The analyzer 13 is an existing device used to analyze the pharmaceutical raw materials ground into powder inside the casing 12. Small-diameter pharmaceutical raw materials can be discharged from the top of the analyzer 13, while large-diameter pharmaceutical raw materials are transported by the analyzer 13 to the inner edge of the casing 12 and fall back into the casing 12. The feed casing 14 is made of high-strength steel and is used to guide the feeding of pharmaceutical raw materials. The first drive component 16 is an existing power output component, consisting of a drive motor and a reducer. The first drive component 16 is used to provide power. Through the cooperation of the hammer and the shield, the processing method can be changed in real time according to the different particle sizes of the pharmaceutical raw materials, thereby enhancing the overall grinding efficiency of the pharmaceutical raw materials.

[0058] like Figures 4-6As shown, the hammering part includes: a plurality of evenly distributed first liquid-collecting components 21, all fixed to the upper side of the second rotating shell 19, for maintaining stability during the rotation of the second rotating shell 19; a liquid-collecting cavity is provided inside the second rotating shell 19, and the plurality of evenly distributed first liquid-collecting components 21 are all connected to the liquid-collecting cavity inside the second rotating shell 19 and all contain hydraulic oil; a plurality of evenly distributed first sealing components 22, which are slidably connected to adjacent first liquid-collecting components 21, for maintaining stability during the rotation of the second rotating shell 19; and a plurality of evenly distributed connecting components 23, which are fixed to adjacent first sealing components 22 at positions away from the second rotating shell 19, for maintaining stability during the rotation of the second rotating shell 19. To maintain stability, several evenly distributed hammering elements 24 are rotatably connected to the lower side of adjacent connecting elements 23 to keep the second rotating shell 19 stable during rotation. A torsion spring is fixed between the hammering elements 24 and the adjacent connecting elements 23. The hammering elements 24 are used to grind the pharmaceutical raw materials. The number of arc-shaped plates 25, which are the same as the number of hammering elements 24, is fixed to the adjacent connecting elements 23. The arc-shaped plates 25 are pointed sickle-shaped and are used to extrude the pharmaceutical raw materials step by step. The number of limiting plates 26, which are the same as the number of hammering elements 24, is fixed to the adjacent connecting elements 23. Several sets of limiting plates 26 are all in a limiting sliding fit with the second rotating shell 19. The limiting plates 26 are used to restrict the sliding state of the adjacent connecting elements 23.

[0059] A number of uniformly distributed first liquid-collecting components 21 are arranged in a ring array, with a minimum of three first liquid-collecting components 21, to ensure the stability of the second rotating shell 19 during rotation. The side of the first liquid-collecting component 21 away from the second rotating shell 19 is not sealed with the adjacent first seal 22; conversely, the part of the first liquid-collecting component 21 near the second rotating shell 19 is sealed with the adjacent first seal 22. This ensures that when the first seal 22 slides along the adjacent first liquid-collecting component 21, the part of the first liquid-collecting component 21 away from the second rotating shell 19 will not be under negative pressure. The hydraulic oil in the oil-collecting chambers of the first liquid-collecting component 21 and the second rotating shell 19 can be replaced with other liquids of the same density to ensure that the adjacent first seal 22 can respond promptly to pressure changes within the first liquid-collecting component 21. The connecting component 23 and the hammering component 24 are both from existing grinding rollers in equipment. As part of the invention, the connecting member 23 and the adjacent hammer member 24 are limited to rotate. The invention adds a torsion spring between the connecting member 23 and the hammer member 24 (the torsion spring can be replaced by a leaf spring and a clockwork, the purpose of which is to provide the hammer member 24 with a force for rotational reset). When the arc plate 25 squeezes the drug raw material that cannot be processed in the first time, the arc plate 25 and the adjacent hammer member 24 can rotate along the adjacent connecting member 23 to achieve an automatic avoidance effect, so as to avoid damage to the arc plate 25 and the adjacent hammer member 24 when the arc plate 25 squeezes the drug raw material that cannot be processed in the first time. The thickness of the two sides of the arc plate 25 is inconsistent, and the thickness of one side increases gradually with the thickness of the other side. There are at least two limiting plates 26 in each set. The limiting plates 26 are made of high-strength steel and are used to keep the adjacent connecting member 23 stable when moving.

[0060] like Figures 3-5 As shown, the shielding part includes: a plurality of elastic telescopic rods 31, all fixed to the upper side of the base plate 15; a retaining ring 32, fixed to the telescopic ends of the plurality of evenly distributed elastic telescopic rods 31, with a gap between the retaining ring 32 and all the arc plates 25, and a guide ring fixed to the upper side of the retaining ring 32; a plurality of fixing teeth 33, all fixed to the inner side of the retaining ring 32, with a gap between the plurality of fixing teeth 33 and the evenly distributed plurality of arc plates 25; and symmetrically distributed connecting rods 34, all fixed to the upper side of the retaining ring 32.

[0061] A number of evenly distributed elastic telescopic rods 31 are arranged in a circular array. There are at least three elastic telescopic rods 31, which are used to improve the stability of the retaining ring 32 when it slides. The retaining ring 32 is made of high-strength steel. The air intake between the fixed shell 12 and the air supply component 11 is adjusted by the retaining ring 32, so that the large-particle-size pharmaceutical raw materials in the fixed shell 12 can "move" inside. The guide ring on the upper side of the retaining ring 32 is provided with an inclined surface, and the diameter of the upper side of the inclined surface is smaller than the diameter of the lower side. The guide ring is made of hard silicone to buffer the falling pharmaceutical raw materials. There are at least three fixed teeth 33 arranged in a circular array, and the distance between two adjacent fixed teeth 33 is smaller than the particle size of the pharmaceutical raw materials before they are ground.

[0062] like Figures 3-6 As shown, the drive unit includes: a first connecting frame 41, fixedly connected to the fixed housing 12; a second driving member 42, fixedly connected to the first connecting frame 41; a second connecting frame 43, fixedly connected to the telescopic end of the second driving member 42, with symmetrically distributed connecting rods 34 all engaging with the second connecting frame 43, and gaps left between the symmetrically distributed connecting rods 34 and the second connecting frame 43; a plurality of second sealing members 44, all fixedly connected to the second connecting frame 43; a plurality of second liquid-containing members 45, all fixedly connected to the first connecting frame 41, with the second sealing members 44 and adjacent second liquid-containing members 45 in sliding engagement; a connecting ring 46, fixedly connected to the first connecting frame 41, with the lower side of the connecting ring 46 rotatably engaging with the second rotating housing 19 and communicating with the liquid-containing cavity inside it, and the upper side of the second liquid-containing members 45 being fixedly connected to the connecting ring 46 and connected by a connecting pipe, and each containing hydraulic oil.

[0063] The first connecting frame 41 consists of two welded Z-shaped frames. The distance between the middle parts of the two Z-shaped frames 41 is less than the distance between the opposing sides of all connecting parts 23. This is to ensure that the installation position of the first connecting frame 41 is not affected during the rotation of all connecting parts 23. The first connecting frame 41 is made of high-strength steel. The second driving component 42 is an electric push rod. There are two symmetrically distributed connecting rods 34. The gap between the two connecting rods 34 and the second connecting frame 43 is to prevent the second connecting frame 43 from driving the two connecting rods 34 to move downward synchronously when the second connecting frame 43 initially moves downward. The purpose is to extend the downward movement of the connecting frame 43. The invention features delayed triggering. There are two second seals 44 and two second liquid-filling containers 45. The upper side of the second liquid-filling container 45 is not sealed to the adjacent second seal 44; instead, the lower side of the second seal 44 is sealed to the adjacent second liquid-filling container 45. The connecting pipe between the upper side of the second liquid-filling container 45 and the connecting ring 46 is a rigid pipe. The hydraulic oil in all the second liquid-filling containers 45, the connecting ring 46, and all the connecting pipes can be replaced with other liquids of equal density to ensure that the second seals 44 respond promptly to pressure changes within the second liquid-filling container 45.

[0064] Before using this device to grind pharmaceutical raw materials, the operator connects the outlet of the external feeding device to the right side of the feeding shell 14, then connects the air outlet of the external air supply device to the front of the air supply component 11, and finally connects the inlet of the external powder transport pipeline to the upper side of the analyzer 13, thus completing the preparation work before grinding pharmaceutical raw materials.

[0065] After completing the pre-grinding work of the pharmaceutical raw materials, the staff starts the external air supply equipment, analyzer 13 and the first drive unit 16. The external air supply equipment blows gas into the air supply component 11, which then delivers the gas through its inlet to the fixed shell 12. The gas then flows through the analyzer 13 and finally enters the external powder conveying pipeline, thus completing the gas flow in the fixed shell 12. The power output of the first drive unit 16 drives the rotating plate 17, the first rotating shell 18, the second rotating shell 19, all the first liquid holding components 21, all the first sealing components 22, all the connecting components 23 and their auxiliary parts to rotate clockwise (clockwise when viewed from top to bottom), thus completing the preheating of the device.

[0066] After the preheating of the device is completed, the external feeding device quantitatively conveys the raw materials of medicine to the fixed shell 12 through the feeding shell 14. The raw materials of medicine entering the fixed shell 12 are subjected to centrifugal force generated by the rotation of the parts on the rotating plate 17. Taking the movement state of one of the arc plates 25 and the adjacent hammer 24 as an example, when some raw materials of medicine come into contact with the inner wall of the lower side of the adjacent arc plate 25 and the retaining ring 32, the raw materials of medicine are squeezed by the rotation of the arc plate 25 and the adjacent hammer 24, causing the raw materials of medicine to break. The powder generated after the raw materials of medicine break is moved upward by the gas conveyed by the air supply 11 and then discharged through the analyzer 13. The raw materials of medicine that cannot be discharged through the analyzer 13 fall downward and repeat the above grinding process.

[0067] Once all the raw materials for the medicine to be processed have entered the fixed housing 12, the operator manipulates the second drive component 42, causing the telescopic part of the second drive component 42 to drive the second connecting frame 43 to move downward. The second connecting frame 43 then drives all the second sealing components 44 to move downward simultaneously. With the gap between the second connecting frame 43 and all the connecting rods 34, and with all the elastic telescopic rods 31 providing support to the retaining ring 32 and all the connecting rods 34, the second connecting frame 43 does not initially drive all the connecting rods 34 to move synchronously during its downward movement.

[0068] As all the second seals 44 move downward, the adjacent second liquid-filling components 45 are under negative pressure. This causes all the hydraulic oil in the liquid-filling chamber of the second rotating shell 19 and all the first liquid-filling components 21 to enter all the second liquid-filling components 45 through the connecting ring 46 and the adjacent connecting pipe. After the pressure in all the first liquid-filling components 21 decreases, all the first seals 22 drive the adjacent connecting components 23, hammering components 24, arc-shaped plates 25 and the two adjacent limiting plates 26 to move towards each other, increasing the gap between all the arc-shaped plates 25 and the retaining ring 32, and giving all the fixed teeth 33 on the retaining ring 32 space to move downward.

[0069] When the second connecting frame 43 moves downwards until it contacts all the connecting rods 34, the second connecting frame 43 drives the retaining ring 32 and all the fixing teeth 33 to move downwards synchronously through all the connecting rods 34. During the movement of the retaining ring 32, it squeezes the telescopic parts of all the elastic telescopic rods 31. When the retaining ring 32 drives all the fixing teeth 33 to move to the middle of the same horizontal plane as the middle of all the hammers 24, the telescopic parts on the second driving member 42 no longer move. At this time, there is also a gap between all the arc plates 25 and all the fixing teeth 33. Through the above operation steps, the device can be adjusted to adjust the drug. The raw material processing method changes the initial squeezing force applied to the raw materials by all the arc plates 25 and retaining rings 32 to a simultaneous squeezing force applied by all the arc plates 25 and all the fixed teeth 33, simulating a biting action to "bite-crush" the raw materials, thus achieving grinding of the raw materials. It focuses on processing large-diameter raw materials to prevent them from sliding out from the inside of all the arc plates 25 and retaining rings 32 during the initial processing, which would prevent the large-diameter raw materials from being ground in the first place and increase the overall grinding time.

[0070] During the "biting crushing" process of pharmaceutical raw materials, if the raw materials are too hard or cannot be crushed directly in the first instance, the squeezing force exerted on the raw materials by the arc plate 25 and the adjacent fixed teeth 33 cannot crush them in time. Under the action of the reverse squeezing force on the raw materials, the arc plate 25 drives the adjacent hammer 24 to rotate counterclockwise along the adjacent connecting piece 23 (viewed from above, the clockwise rotation of the hammer 24 causes the adjacent torsion spring to gradually tighten), causing the raw materials that cannot be crushed in time to fall between the arc plate 25 and the adjacent fixed teeth 33, thereby protecting the arc plate 25 and the adjacent fixed teeth 33. After the raw materials that cannot be crushed in time fall, the hammer 24 resets and rotates along the adjacent connecting piece 23 under the action of the adjacent torsion spring.

[0071] During the processing of large-particle-size pharmaceutical raw materials, the baffle ring 32 partially blocks the air inlet of the air supply component 11 as it moves downward, reducing the thickness of the air inlet and thereby accelerating the airflow speed. This allows the gas to quickly enter the fixed shell 12, enhancing the blowing effect on the large-particle-size pharmaceutical raw materials inside the fixed shell 12, and enabling the large-particle-size pharmaceutical raw materials inside the fixed shell 12 to "move" within the fixed shell 12.

[0072] After processing large-particle-size pharmaceutical raw materials for a period of time, the operator manipulates the second drive component 42 to move the second connecting frame 43 back to its original position. The second connecting frame 43 then moves all the second seals 44 upwards to their original position. Once the second connecting frame 43 no longer presses against the connecting rods 34, all the elastic telescopic rods 31 move the retaining ring 32 and all the connecting rods 34 upwards to their original position (during which the retaining ring 32 no longer blocks the air inlet of the air supply component 11). The telescopic parts of all the elastic telescopic rods 31 then move to their original position. Figure 4 After reaching the desired state, all retaining rings 32 and all connecting rods 34 stop moving. At that time, the second connecting frame 43 continues to drive all the second seals 44 to move upward. During the movement of all the second seals 44, they squeeze the hydraulic oil in the adjacent second liquid-filling parts 45, causing the hydraulic oil in all the second liquid-filling parts 45 to flow back into the connecting ring 46 through the adjacent connecting pipe, increasing the pressure in the liquid-filling chamber in the second rotating shell 19, thereby causing all the first seals 22 to drive all the connecting parts 23 and their auxiliary parts to move in opposite directions.

[0073] When all the first seals 22 and their associated parts move to Figure 5 and Figure 6 After the initial state, the grinding of the pharmaceutical raw materials is resumed. The raw materials are then squeezed between the arc plate 25 and the retaining ring 32 to achieve grinding.

[0074] After the grinding of the drug raw materials is completed, the operator uses the external feeding device to feed the drug raw materials back into the feeding shell 14. Once the grinding of the drug raw materials is no longer required, the operator can turn off all the electronic devices mentioned above.

[0075] When it is necessary to adjust the fineness of the powder discharged after the raw materials are ground, the staff can simply replace the analyzer 13 (the filter screen in the analyzer 13 has a smaller pore size, which is suitable for fine powder).

[0076] Example 2: Based on Example 1, such as Figure 3 , Figure 4 , Figure 7 and Figure 8As shown, it also includes a transfer section: the transfer section is used to transfer the pharmaceutical raw materials on the base plate 15. The transfer section includes: several L-shaped plates 51 evenly distributed, all fixed to the outer side of the rotating plate 17; several L-shaped plates 51 evenly distributed to keep the rotating plate 17 stable during rotation; several arc-shaped shells 52 evenly distributed, all fixed to the outer side of the rotating plate 17; several arc-shaped shells 52 evenly distributed to transfer the pharmaceutical raw materials on the base plate 15. The arc-shaped shells 52 are fixed to the adjacent L-shaped plates 51 and slide in fit with the base plate 15. The arc-shaped shells 52 are provided with notches for transferring pharmaceutical raw materials. Arc-shaped blocks are fixed to the inner and outer edges of the arc-shaped shells 52. The arc-shaped blocks are used to transfer pharmaceutical raw materials. The upper side of the arc-shaped shells 52 is provided with a protrusion for conveying pharmaceutical raw materials to the adjacent hammer 24 without affecting the normal processing of pharmaceutical raw materials by the adjacent hammer 24.

[0077] Several L-shaped plates 51 are evenly distributed in a ring array, with a minimum of three L-shaped plates 51. Several arc-shaped shells 52 are also evenly distributed in a ring array to keep the rotating plate 17 stable during rotation. The number of arc-shaped shells 52 is the same as that of adjacent L-shaped plates 51. The arc-shaped shells 52 are made of high-strength steel. While the arc-shaped shells 52 are arc-shaped, the heights on both sides of the arc-shaped shells 52 are not the same. This is used to "scoop up" the pharmaceutical raw materials on the base plate 15, simulating the way a shovel digs soil, to process the pharmaceutical raw materials.

[0078] like Figure 7 and Figure 8 As shown, a baffle 60 is slidably connected inside the arc-shaped shell 52. The baffle 60 is used to block the notches on the adjacent arc-shaped shells 52. The first rotating shell 18 is provided with a control unit, which is used to adjust the position of several evenly distributed baffles 60 on the adjacent arc-shaped shells 52.

[0079] The number of baffles 60 is the same as the number of arc-shaped shells 52. When the baffles 60 do not block the gaps on the adjacent arc-shaped shells 52, small-diameter pharmaceutical raw materials can fall through the gaps on the arc-shaped shells 52, thereby completing the "scooping up" of large-diameter pharmaceutical raw materials.

[0080] like Figure 5 , Figure 6 and Figure 8 As shown, the control unit includes: a third liquid-containing component 61, which is the same number as the arc-shaped shell 52, fixedly connected to and connected to the first rotating shell 18, the first rotating shell 18 being connected to the liquid-containing cavity in the second rotating shell 19; and a third sealing component 62, which is slidably connected to the adjacent third liquid-containing component 61, the side of the third sealing component 62 away from the adjacent third liquid-containing component 61 being fixedly connected to the adjacent baffle 60.

[0081] The side of the third liquid-collecting component 61 away from the first rotating shell 18 is not sealed with the adjacent third sealing component 62. Conversely, the side of the third sealing component 62 facing the first rotating shell 18 is sealed with the adjacent third liquid-collecting component 61.

[0082] In existing Raymond mills, the transfer device moves the pharmaceutical raw materials from the bottom of the main unit to the grinding area of ​​the grinding device during the grinding process. However, the transfer device indiscriminately transfers the pharmaceutical raw materials from the bottom of the main unit to the grinding area. Small-particle-size pharmaceutical raw materials are already quite fine and do not require further grinding. When they enter the grinding area together with large-particle-size pharmaceutical raw materials, the grinding energy is not effectively utilized on the larger pharmaceutical raw materials that actually need to be ground, thus reducing the overall grinding efficiency. This invention changes the transfer method of the existing transfer device, enabling it to autonomously screen the pharmaceutical raw materials during transfer. This prevents small-particle-size pharmaceutical raw materials from being carried away, while large-particle-size pharmaceutical raw materials are more easily carried away, thereby improving the overall grinding efficiency.

[0083] During the grinding process of the raw materials, the first rotating shell 18 drives all the arc shells 52 to rotate clockwise through all the L-shaped plates 51. As the arc shells 52 rotate, they transfer the raw materials on the base plate 15 upwards. Under the action of the protruding part of the arc shell 52 near the adjacent hammer 24, the arc shell 52 directly transfers the raw materials on the base plate 15 between the hammer 24 and the retaining ring 32, thereby enhancing the grinding effect on the ore.

[0084] In Example 1, during the switching of the drug raw material processing method, when the pressure in the liquid-containing chamber of the second rotating shell 19 decreases, the pressure in all the third liquid-containing components 61 decreases synchronously. This causes all the third sealing components 62 to move all the baffles 60 toward each other, so that the baffles 60 no longer block the notch of the arc-shaped shell 52. As the arc-shaped shell 52 rotates with the rotating plate 17, small-diameter drug raw materials can fall through the notch on the adjacent arc-shaped shell 52, while large-diameter drug raw materials are guided into the grinding area by the arc-shaped shell 52.

[0085] When the processing method of the pharmaceutical raw materials is switched again in Example 1, the pressure in the liquid chamber of the second rotating shell 19 increases, causing the pressure in all the third liquid-containing components 61 to increase synchronously. This causes all the third sealing components 62 to move all the baffles 60 in opposite directions, so that the baffles 60 restore the blocking of the notch of the arc-shaped shell 52.

[0086] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A flour-milling apparatus with adjustable powder fineness, comprising: The bottom frame (10); air supply part (11) is fixed to the bottom frame (10); fixed shell (12) is fixed to the air supply part (11), the fixed shell (12) and the air supply part (11) between be provided with the gas inlet that provides gas flow; analyzer (13) is fixed to the fixed shell (12); feed shell (14) is fixed and communicated with the one side of the fixed shell (12); bottom plate (15) is fixed to the air supply part (11) near the one side of the bottom frame (10); First drive (16) is arranged in the bottom frame (10), and the power output part of the first drive (16) penetrates the bottom plate (15) and is rotationally matched with the bottom plate (15); It is characterized by further comprising: rotating plate (17) is fixed to the power output part of the first drive (16), and the rotating plate (17) is located in the air supply part (11); first rotating shell (18) is fixed to the upper side of the rotating plate (17); Second rotating shell (19) is fixed to the upper side of the first rotating shell (18); Hammering part includes: Uniformly distributed first liquid containing part (21) is fixed to the upper side of the second rotating shell (19), for keeping stable in the process of rotating the second rotating shell (19), the second rotating shell (19) is provided with a liquid containing cavity, and the first liquid containing part (21) is communicated with the liquid containing cavity in the second rotating shell (19) and stores hydraulic oil; Uniformly distributed first sealing part (22) is slidably connected to adjacent first liquid containing part (21); Uniformly distributed connecting part (23) is fixed to the position away from the second rotating shell (19) of adjacent first sealing part (22); Uniformly distributed hammering part (24) is rotationally connected to the lower side of adjacent connecting part (23), for keeping stable in the process of rotating the second rotating shell (19), the hammering part (24) is fixed with a torsion spring between adjacent connecting part (23), and the hammering part (24) is used for grinding the medicine raw material; The hammering part (24) is fixed with an arc plate (25); Shielding part includes: Several elastic telescopic rods (31) are fixed to the upper side of the bottom plate (15); The stop ring (32) is fixed to the telescopic end of the uniformly distributed elastic telescopic rod (31), the stop ring (32) and all the arc plates (25) are left with a gap, the upper side of the stop ring (32) is fixed with a guide ring, and the stop ring (32) is used for adjusting the air inlet of the air inlet between the fixed shell (12) and the air supply part (11); Several fixed teeth (33) are fixed to the inner side of the stop ring (32), and the fixed teeth (33) and the uniformly distributed arc plates (25) are left with a gap; Several connecting rods (34) are fixed to the upper side of the stop ring (32). The driving part is arranged in the chassis (10) and is used for changing the hammering mode of the hammering part on the medicine raw material and changing the shielding degree of the shielding part on the air inlet between the fixed shell (12) and the air supply part (11).

2. The flour-milling apparatus according to claim 1, wherein: The arc-shaped plate (25) is in the shape of a sharp-headed sickle and is used for gradually extruding the medicine raw material.

3. The flour-milling apparatus according to claim 1, wherein: The connecting piece (23) is fixedly connected with a plurality of groups of limiting plates (26), the plurality of groups of limiting plates (26) are all in limiting sliding fit with the second rotating shell (19), and the limiting plates (26) are used for limiting the sliding state of the adjacent connecting piece (23).

4. The mill according to claim 1, wherein: The driving part comprises: A first connecting frame (41) is fixedly connected in the fixed shell (12); A second driving part (42) is fixedly connected to the first connecting frame (41); A second connecting frame (43) is fixedly connected to the telescopic end of the second driving part (42), the connecting rods (34) symmetrically distributed are in extruding fit with the second connecting frame (43), and gaps are reserved between the connecting rods (34) symmetrically distributed and the second connecting frame (43); A plurality of second sealing parts (44) are all fixedly connected to the second connecting frame (43); A plurality of second liquid containing parts (45) are all fixedly connected to the first connecting frame (41), the second sealing part (44) is in sliding fit with the adjacent second liquid containing part (45); A connecting ring (46) is fixedly connected to the first connecting frame (41), the lower side of the connecting ring (46) is in rotating fit with the second rotating shell (19) and is in fit communication with the liquid containing cavity in the second rotating shell (19), and the upper side of the second liquid containing part (45) is fixedly connected with the connecting ring (46) and is in communication with the connecting pipe and all stores the hydraulic oil.

5. A flour-milling apparatus according to claim 4, wherein: Further comprising: A transferring part is arranged in the fixed shell (12) and is used for transferring the medicine raw material on the bottom plate (15), and the transferring part comprises: A plurality of L-shaped plates (51) are uniformly distributed, all fixedly connected to the outer side of the rotating plate (17), and the plurality of L-shaped plates (51) are used for keeping the rotating plate (17) stable during rotation; A plurality of arc-shaped shells (52) are uniformly distributed, all fixedly connected to the outer side of the rotating plate (17), and the plurality of arc-shaped shells (52) are used for uniformly transferring the medicine raw material on the bottom plate (15), the arc-shaped shell (52) is fixedly connected with the adjacent L-shaped plate (51), the arc-shaped shell (52) is in sliding fit with the bottom plate (15), the arc-shaped shell (52) is provided with a gap for transferring the medicine raw material, and the inner edge and the outer edge of the arc-shaped shell (52) are both fixedly connected with arc-shaped blocks for transferring the medicine raw material.

6. A flour-milling apparatus according to claim 5, wherein: The upper side of the arc-shaped shell (52) is provided with a protruding part for conveying the medicine raw material to the adjacent hammering part (24) without affecting the normal processing of the medicine raw material by the adjacent hammering part (24).

7. A flour-milling apparatus according to claim 5, wherein: The arc-shaped shell (52) is slidably connected with a baffle (60) for shielding the gap on the adjacent arc-shaped shell (52), and the first rotating shell (18) is provided with a control part for adjusting the position of the uniformly distributed baffles (60) on the adjacent arc-shaped shell (52).

8. A flour-milling apparatus according to claim 7, wherein: The control part comprises: A third liquid containing part (61) consistent with the number of the arc-shaped shell (52) is fixedly connected and communicated with the first rotating shell (18), and the first rotating shell (18) is communicated with the liquid containing cavity in the second rotating shell (19); A third sealing part (62) is slidably connected with the adjacent third liquid containing part (61), and the side of the third sealing part (62) away from the adjacent third liquid containing part (61) is fixedly connected with the adjacent baffle (60).

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