Powder grinding equipment with adjustable powder fineness

Abstract

The invention relates to the technical field of grinding, in particular to powder fineness adjustable grinding equipment. Comprising a chassis; the air supply piece is fixedly connected to the bottom frame; the fixed shell is fixedly connected to the air supply piece, and an air inlet for air circulation is formed between the fixed shell and the air supply piece; the analyzer is fixedly connected to the fixed shell; and the feeding shell is fixedly connected and communicated with one side of the fixed shell. According to the invention, medicine raw materials are ground by adopting a timely replacement grinding mode, and corresponding treatment is carried out according to the medicine raw materials with different particle sizes, for example, when the medicine raw materials with large particle sizes are treated, the working principle of simulating tooth occlusion is adopted, the medicine raw materials with large particle sizes are preferentially subjected to'bite-type crushing ', and then the medicine raw materials with large particle sizes are crushed; and when the medicine raw materials with large particle sizes are damaged to be in a small-particle-size state, the grinding force on the medicine raw materials with small particle sizes is gradually increased by adopting a gradual-change extrusion mode, so that the overall grinding efficiency on the medicine raw materials is enhanced.

Description

Technical Field

[0001] The invention relates to the technical field of grinding, in particular to a grinding device with adjustable powder fineness. Background Art

[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, etc., and because mineral-based medicinal materials are relatively hard, they require special processing.

[0003] Existing grinding equipment can be divided into many types, such as Raymond mill, ball mill and vertical mill, among which Raymond mill is a kind of equipment specially used for grinding mineral materials.

[0004] The Raymond mill is mainly composed of a main machine, an analyzer, an air supply shell, a grinding device, a transfer device, etc. When the Raymond mill grinds pharmaceutical raw materials, it is necessary to grind the pharmaceutical raw materials into finer powder, and then the powder is transported to the analyzer by the air supply device. The powder that meets the required particle size for the work is discharged through the analyzer, and the powder that does not meet the required particle size for the work is re-introduced into the main machine by the analyzer.

[0005] However, the sizes of pharmaceutical raw materials are different. When the grinding device squeezes large pieces of pharmaceutical raw materials, due to the small distance between the grinding roller and the grinding ring in the grinding equipment (the small distance is for the purpose of grinding the pharmaceutical raw materials into powder), when the grinding roller and the grinding ring are grinding the large pieces of pharmaceutical raw materials, the large pieces of pharmaceutical raw materials may slip out of the grinding roller and the grinding ring, so that the large pieces of pharmaceutical raw materials cannot be ground in time, thereby affecting the overall efficiency of grinding the pharmaceutical raw materials. Summary of the invention

[0006] In order to solve the problem that when a Raymond mill is used to grind pharmaceutical raw materials, the pharmaceutical raw materials slip out from between the grinding roller and the grinding ring due to the different sizes of the pharmaceutical raw materials, resulting in large pieces of pharmaceutical raw materials being unable to be ground in time, the present invention provides a grinding device with adjustable powder fineness.

[0007] The technical scheme of the present invention is as follows: A powder fineness adjustable grinding device, comprising: a base frame; an air supply member fixedly connected to the base frame; a fixed shell fixedly connected to the air supply member, an air inlet for providing gas circulation is provided between the fixed shell and the air supply member; an analyzer fixedly connected to the fixed shell; a feed shell fixedly connected to and communicated with one side of the fixed shell; a bottom plate fixedly connected to a side of the air supply member close to the base frame; A first driving member is disposed in the base frame, and a power output portion of the first driving member penetrates through the base plate and rotates in cooperation with the base plate; A rotating plate is fixedly connected to the power output part of the first driving member, and the rotating plate is located in the air supply member; a first rotating shell is fixedly connected to the upper side of the rotating plate; and a second rotating shell is fixedly connected to the upper side of the first rotating shell; A hammering part, disposed on the second rotating shell, and used for grinding the drug raw materials in the fixed shell; A shielding portion, disposed on the bottom plate, and used to shield an air inlet between the fixed shell and the air supply member; The driving part is arranged in the base frame, and the driving part is used to change the hammering mode of the hammering part on the medicine raw material and change the shielding degree of the shielding part on the air inlet between the fixed shell and the air supply member.

[0008] Preferably, the hammering part comprises: A plurality of evenly distributed first liquid holding members are fixedly connected to the upper side of the second rotating shell, and are used to keep the second rotating shell stable during rotation. A liquid holding cavity is provided in the second rotating shell, and the plurality of evenly distributed first liquid holding members are connected to the liquid holding cavity in the second rotating shell and contain hydraulic oil. A plurality of evenly distributed first sealing members are respectively slidably connected to adjacent first liquid containing members, so as to keep the second rotating shell stable during rotation; A plurality of evenly distributed connecting members, respectively fixed to positions adjacent to the first sealing members and away from the second rotating shell, for keeping the second rotating shell stable during rotation; Several hammering members are evenly distributed and rotatably connected to the lower sides of the adjacent connecting members, so as to keep the second rotating shell stable during rotation. A torsion spring is fixed between the hammering member and the adjacent connecting member, and the hammering member is used to grind the pharmaceutical raw materials.

[0009] Preferably, the hammer member is fixedly connected with an arc-shaped plate, the arc-shaped plate is in a pointed sickle shape, and the arc-shaped plate is used for extruding the drug raw materials step by step.

[0010] Preferably, the connecting member is fixedly connected with a plurality of groups of limit plates, and the plurality of groups of limit plates are all in limited sliding cooperation with the second rotating shell, and the limit plates are used to limit the sliding state of adjacent connecting members.

[0011] Preferably, the shielding portion comprises: A plurality of elastic telescopic rods are fixedly connected to the upper side of the bottom plate; A baffle ring is fixedly connected to the telescopic ends of the elastic telescopic rods evenly distributed, a gap is left between the baffle ring and all the arc-shaped plates, a guide ring is fixedly connected to the upper side of the baffle ring, and the baffle ring is used to adjust the air intake of the air inlet between the fixed shell and the air supply member; A plurality of fixed teeth are fixedly connected to the inner side of the retaining ring, and gaps are left between the plurality of fixed teeth and the plurality of evenly distributed arc-shaped plates; A plurality of connecting rods are fixedly connected to the upper side of the retaining ring.

[0012] Preferably, the driving unit comprises: A first connecting frame, fixedly connected to the fixing shell; A second driving member, fixedly connected to the first connecting frame; A second connecting frame is fixedly connected to the telescopic end of the second driving member, the symmetrically distributed connecting rods are all squeezed and matched with the second connecting frame, and gaps are left between the symmetrically distributed connecting rods and the second connecting frame; A plurality of second sealing members, all fixedly connected to the second connecting frame; A plurality of second liquid holding members are all fixedly connected to the first connecting frame, and the second sealing member is slidably matched with adjacent second liquid holding members; The connecting ring is fixedly connected to the first connecting frame, the lower side of the connecting ring is rotatably matched with the second rotating shell and communicated with the liquid storage cavity therein, the upper side of the second liquid storage part is fixedly connected to the connecting ring and communicated with a connecting pipe and both store hydraulic oil.

[0013] As a preference, it also includes: A transfer part is arranged in the fixed shell, and is used to transfer the medicine raw materials on the bottom plate, and the transfer part includes: A plurality of evenly distributed L-shaped plates are fixedly connected to the outer side of the rotating plate, and the evenly distributed L-shaped plates are used to keep the rotating plate stable during rotation; A plurality of evenly distributed arc shells are fixed to the outer side of the rotating plate, and the evenly distributed arc shells are used to evenly transfer the pharmaceutical raw materials on the bottom plate. The arc shell is fixed to the adjacent L-shaped plate, and the arc shell is slidably matched with the bottom plate. The arc shell is provided with a notch for transferring the pharmaceutical raw materials. Arc blocks are fixed at the inner edge and the outer edge of the arc shell, and the arc blocks are used to transfer the pharmaceutical raw materials.

[0014] Preferably, a protrusion is provided on the upper side of the arc-shaped shell for conveying the pharmaceutical raw materials to the adjacent hammering member without affecting the normal processing of the pharmaceutical raw materials by the adjacent hammering member.

[0015] Preferably, a baffle is slidably connected inside the arc-shaped shell, and the baffle is used to cover the gap on the adjacent arc-shaped shell. The first rotating shell is provided with a control unit, and the control unit is used to adjust the positions of several evenly distributed baffles on the adjacent arc-shaped shells.

[0016] Preferably, the control unit comprises: The third liquid holding members, the number of which is the same as that of the arc-shaped shells, are fixedly connected to and communicated with the first rotating shell, and the first rotating shell is communicated with the liquid holding chamber in the second rotating shell; The third sealing member is slidably connected to the adjacent third liquid containing member, and the side of the third sealing member away from the adjacent third liquid containing member is fixedly connected to the adjacent baffle.

[0017] The beneficial effects of the present invention are as follows: the present invention adopts timely replacement of the grinding method to grind the pharmaceutical raw materials, and performs corresponding treatment according to the pharmaceutical raw materials with different particle sizes. For example, when processing the pharmaceutical raw materials with large particle sizes, the working principle of simulating tooth bite is adopted, and the pharmaceutical raw materials with large particle sizes are preferentially "bite-crushed", so as to facilitate the overall treatment of the pharmaceutical raw materials. When the pharmaceutical raw materials with large particle sizes are broken into a state of small particle sizes, the grinding force of the pharmaceutical raw materials with small particle sizes is gradually increased by a gradual extrusion method, so as to enhance the overall grinding efficiency of the pharmaceutical raw materials. When it is necessary to adjust the fineness of the powder discharged after the pharmaceutical raw materials are ground, the powder fineness can be adjusted by replacing the analyzer; The present invention changes the transfer mode of the existing transfer device so that the transfer device can autonomously screen when transferring pharmaceutical raw materials, so that pharmaceutical raw materials with small particle sizes will not be taken away, but pharmaceutical raw materials with large particle sizes are more easily taken away, thereby improving the overall grinding efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a front view of the three-dimensional structure of the present invention; Figure 2 It is another perspective schematic diagram of the three-dimensional structure of the present invention; Figure 3 It is a three-dimensional structural cross-sectional view of the fixed shell of the present invention; Figure 4 It is a three-dimensional structural cross-sectional view of the retaining ring of the present invention; Figure 5 It is a three-dimensional structural cross-sectional view of the first connecting frame of the present invention; Figure 6 is a three-dimensional structural cross-sectional view of the second rotating shell of the present invention; Figure 7 It is a schematic diagram of the three-dimensional structure of the transfer part of the present invention; Figure 8 It is an exploded view of the three-dimensional structure of the transfer part of the present invention.

[0019] The markings of the components in the accompanying drawings are as follows: 10: base frame, 11: air supply member, 12: fixed shell, 13: analyzer, 14: feed shell, 15: bottom plate, 16: first driving member, 17: rotating plate, 18: first rotating shell, 19: second rotating shell, 21: first liquid holding member, 22: first sealing member, 23: connecting member, 24: hammer member, 25: arc plate, 26: limit plate, 31: elastic telescopic rod, 32: baffle ring, 33: fixed tooth, 34: connecting rod, 41: first connecting frame, 42: second driving member, 43: second connecting frame, 44: second sealing member, 45: second liquid holding member, 46: connecting ring, 51: L-shaped plate, 52: arc shell, 60: baffle plate, 61: third liquid holding member, 62: third sealing member. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings. It is hereby stated that the directional terms such as up, down, left, right, front, back, inside, outside, etc. that appear or will appear in the text of the present invention are only based on the accompanying drawings of the present invention, and are not specific limitations of the present invention.

[0021] In order to solve the problem that when Raymond mill is grinding pharmaceutical raw materials, due to the different sizes of pharmaceutical raw materials, the pharmaceutical raw materials slip out from between the grinding roller and the grinding ring, resulting in large pieces of pharmaceutical raw materials cannot be ground in time.

[0022] The present invention adopts timely replacement of the grinding method to grind the pharmaceutical raw materials, and at the same time, performs corresponding treatment according to the pharmaceutical raw materials with different particle sizes. For example, when processing the pharmaceutical raw materials with large particle sizes, the working principle of simulating tooth occlusion is adopted, and the pharmaceutical raw materials with large particle sizes are preferentially "bite-crushed" to facilitate the overall processing of the pharmaceutical raw materials. When the pharmaceutical raw materials with large particle sizes are broken into a state of small particle sizes, a gradual extrusion method is adopted to gradually increase the grinding intensity of the pharmaceutical raw materials with small particle sizes, thereby enhancing the overall grinding efficiency of the pharmaceutical raw materials.

[0023] Embodiment 1: A powder fineness adjustable grinding device, such as Figure 1-Figure 6As shown, it includes a base frame 10; an air supply member 11, which is fixed to the base frame 10; a fixed shell 12, which is fixed to the air supply member 11, and an air inlet for gas circulation is provided between the fixed shell 12 and the air supply member 11; an analyzer 13, which is fixed to the fixed shell 12; a feed shell 14, which is fixed to and communicated with one side of the fixed shell 12; a bottom plate 15, which is fixed to the side of the air supply member 11 close to the base frame 10; a first driving member 16, which is arranged in the base frame 10, and the power output part of the first driving member 16 passes through the bottom plate 15 and rotates with it; a rotating plate 17, which is fixed to the power output part of the first driving member 16, and the rotating plate 17 is located at the air supply member 1 1; a first rotating shell 18, fixedly connected to the upper side of the rotating plate 17; a second rotating shell 19, fixedly connected to the upper side of the first rotating shell 18, and the first rotating shell 18 is located between the second rotating shell 19 and the rotating plate 17; a hammering part, arranged on the second rotating shell 19, and the hammering part is used to grind the pharmaceutical raw materials in the fixed shell 12; a shielding part, arranged on the bottom plate 15, and the shielding part is used to shield the air inlet between the fixed shell 12 and the air supply member 11; a driving part, arranged in the bottom frame 10, and the driving part is used to change the hammering mode of the hammering part on the pharmaceutical raw materials and change the shielding degree of the shielding part on the air inlet between the fixed shell 12 and the air supply member 11.

[0024] In the above schemes, the problem that when the existing Raymond mill grinds pharmaceutical raw materials, the pharmaceutical raw materials are of different sizes, and the pharmaceutical raw materials with large particles will slide out when being ground, resulting in large pieces of pharmaceutical raw materials cannot be ground in time, thereby increasing the grinding time of large pieces of pharmaceutical raw materials, the base frame 10 is composed of a U-shaped plate welded to each other, four triangular support plates and a connecting plate, and all six are high-strength steel to ensure the stability of the device fixation, the air supply member 11 is composed of an air guide shell and a number of evenly distributed guide vanes, the angle of the guide vanes in the air supply member 11 can be adjusted according to the working conditions, the inner side of the air supply member 11 is provided with an inclined surface for guiding the pharmaceutical raw materials, before work, the air supply port of the external air supply device will be connected to the front side of the air supply member 11 to realize the air supply of the air supply member 11, the fixed shell 12 is bolted to the air supply member 11, and both are high-strength The fixed shell 12 is used to provide a space for grinding the pharmaceutical raw materials. The air inlet between the fixed shell 12 and the air supply member 11 is annular. The analyzer 13 is an existing device. The analyzer 13 is used to analyze the pharmaceutical raw materials ground into powder in the fixed shell 12. Pharmaceutical raw materials with small particle sizes can be discharged from the upper side of the analyzer 13, and pharmaceutical raw materials with large particle sizes are transported by the analyzer 13 to the inner edge of the fixed shell 12, and then fall back into the fixed shell 12. The feed shell 14 is made of high-strength steel. The feed shell 14 is used to provide guidance for the discharge of pharmaceutical raw materials. The first drive member 16 is an existing power output member. The first drive member 16 is composed of a drive motor and a reducer. The first drive member 16 is used to provide power. Through the cooperation of the hammer part and the shielding part, the effect of real-time change of the processing method according to the different particle sizes of the pharmaceutical raw materials is achieved, thereby enhancing the overall grinding efficiency of the pharmaceutical raw materials.

[0025] like Figure 4-Figure 6As shown, the hammering part includes: a plurality of evenly distributed first liquid holding members 21, all fixedly connected to the upper side of the second rotating shell 19, and used to keep the second rotating shell 19 stable during rotation; a liquid holding chamber is provided in the second rotating shell 19, and the evenly distributed first liquid holding members 21 are all connected to the liquid holding chamber in the second rotating shell 19 and contain hydraulic oil; a plurality of evenly distributed first sealing members 22, respectively slidably connected to adjacent first liquid holding members 21, and used to keep the second rotating shell 19 stable during rotation; a plurality of evenly distributed connecting members 23, respectively fixedly connected to the positions of adjacent first sealing members 22 away from the second rotating shell 19, and used to keep the second rotating shell 19 stable during rotation Maintain stability; several evenly distributed hammer members 24 are rotatably connected to the lower sides of adjacent connecting members 23, and are used to keep the second rotating shell 19 stable during rotation. A torsion spring is fixed between the hammer members 24 and the adjacent connecting members 23. The hammer members 24 are used to grind the pharmaceutical raw materials. The same number of arc plates 25 as the hammer members 24 are fixed to the adjacent ones. The arc plates 25 are pointed sickle-shaped and are used to extrude the pharmaceutical raw materials step by step. The same number of limit plates 26 as the hammer members 24 are fixed to the adjacent connecting members 23. Several groups of limit plates 26 are all limited and slidably matched with the second rotating shell 19. The limit plates 26 are used to limit the sliding state of adjacent connecting members 23.

[0026] A plurality of evenly distributed first liquid-containing members 21 are arranged in a circular array, and there are at least three first liquid-containing members 21, which are used to ensure the stability of the second rotating shell 19 when it rotates. The side of the first liquid-containing member 21 away from the second rotating shell 19 is not sealed with the adjacent first sealing member 22. On the contrary, the part of the first liquid-containing member 21 close to the second rotating shell 19 is sealed with the adjacent first sealing member 22, so that when the first sealing member 22 slides along the adjacent first liquid-containing member 21, the part of the first liquid-containing member 21 away from the second rotating shell 19 will not be in a negative pressure state. The hydraulic oil in the oil storage chambers of the first liquid-containing member 21 and the second rotating shell 19 can be replaced by other liquids of the same density, so that when the pressure in the first liquid-containing member 21 changes, the adjacent first sealing member 22 can respond in time. The connecting member 23 and the hammer member 24 are both in the grinding roller of the existing equipment. The present 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 spring to provide a force for the hammer member 24 to rotate and reset). When the arc plate 25 squeezes the pharmaceutical raw materials that cannot be processed at 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 pharmaceutical raw materials that cannot be processed at 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. Each group of limiting plates 26 has at least two, and the limiting plates 26 are made of high-strength steel. The limiting plates 26 are used to keep the adjacent connecting members 23 stable when moving.

[0027] like Figure 3-Figure 5 As shown, the shielding portion includes: a plurality of elastic telescopic rods 31, all fixedly connected to the upper side of the base plate 15; a retaining ring 32, fixedly connected to the telescopic ends of the plurality of evenly distributed elastic telescopic rods 31, with gaps being left between the retaining ring 32 and all the arc plates 25, and a guide ring being fixedly connected to the upper side of the retaining ring 32; a plurality of fixed teeth 33, all fixedly connected to the inner side of the retaining ring 32, with gaps being left between the plurality of fixed teeth 33 and the evenly distributed arc plates 25; and symmetrically distributed connecting rods 34, all fixedly connected to the upper side of the retaining ring 32.

[0028] A plurality of evenly distributed elastic telescopic rods 31 are arranged in a circular array, and a plurality of elastic telescopic rods 31 are at least three, 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 of the air inlet between the fixed shell 12 and the air supply member 11 is adjusted by the retaining ring 32, so that the large-particle-size pharmaceutical raw materials in the fixed shell 12 can "move" therein. 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 hard silica gel, which is used to cushion the falling pharmaceutical raw materials. A plurality of fixed teeth 33 are at least three and are distributed 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 being ground.

[0029] like Figure 3-Figure 6 As shown, the driving part includes: a first connecting frame 41, which is fixedly connected to the fixed shell 12; a second driving member 42, which is fixedly connected to the first connecting frame 41; a second connecting frame 43, which is fixedly connected to the telescopic end of the second driving member 42, and the symmetrically distributed connecting rods 34 are all squeezed and matched with the second connecting frame 43, and there are gaps between the symmetrically distributed connecting rods 34 and the second connecting frame 43; a plurality of second sealing members 44, which are all fixedly connected to the second connecting frame 43; a plurality of second liquid holding members 45, which are all fixedly connected to the first connecting frame 41, and the second sealing members 44 are slidingly matched with the adjacent second liquid holding members 45; a connecting ring 46, which is fixedly connected to the first connecting frame 41, and the lower side of the connecting ring 46 is rotationally matched with the second rotating shell 19 and is connected and matched with the liquid holding cavity therein, and the upper side of the second liquid holding member 45 is fixedly connected to the connecting ring 46 and is connected with a connecting pipe and hydraulic oil is stored in both.

[0030] The first connecting frame 41 is composed of two Z-shaped frames welded together. The distance between the middle parts of the two first connecting frames 41 is smaller than the distance between the opposite sides of all the connecting members 23, so that the installation position of the first connecting frame 41 will not be affected during the rotation of all the connecting members 23. The first connecting frame 41 is made of high-strength steel, the second driving member 42 is an electric push rod, and there are two symmetrically distributed connecting rods 34. The gap between the two connecting rods 34 and the second connecting frame 43 is used to ensure that when the second connecting frame 43 initially moves downward, the second connecting frame 43 will not drive the two connecting rods 34 to move downward synchronously, so as to extend the rotation of the first connecting frame 41. Delayed triggering, there are two second sealing members 44 in the present invention, there are two second liquid-holding members 45 in the present invention, the upper side of the second liquid-holding member 45 is not sealed with the adjacent second sealing member 44, on the contrary, the lower side of the second sealing member 44 is sealed with the adjacent second liquid-holding member 45, the connecting pipe between the upper side of the second liquid-holding member 45 and the connecting ring 46 is a hard pipe, the hydraulic oil in all the second liquid-holding members 45, the connecting ring 46 and all the connecting pipes can be replaced by other liquids of the same density, so that when the pressure in the second liquid-holding member 45 changes, the second sealing member 44 can respond in time.

[0031] Before using this device to grind the pharmaceutical raw materials, the staff connects the discharge port of the external feeding equipment to the right side of the feeding shell 14, and then connects the air supply port of the external air supply equipment to the front side of the air supply member 11, and finally connects the feed port of the external powder transport pipeline to the upper side of the analyzer 13, thereby completing the preparation work before grinding the pharmaceutical raw materials.

[0032] After completing the work before grinding the pharmaceutical raw materials, the staff starts the external air supply equipment, the analyzer 13 and the first driving member 16. The external air supply equipment blows the gas into the air supply member 11, and the air supply member 11 conveys the gas to the fixed shell 12 through its air inlet, and then flows through the analyzer 13, and finally enters the external powder conveying pipeline, thereby completing the circulation of the gas in the fixed shell 12. The power output part of the first driving member 16 drives the rotating plate 17, the first rotating shell 18, the second rotating shell 19, all the first liquid containing members 21, all the first sealing members 22, all the connecting members 23 and their accessory parts to rotate clockwise (clockwise when viewed from top to bottom), thereby completing the preheating of the device.

[0033] After the preheating of the device is completed, the external feeding equipment quantitatively conveys the pharmaceutical raw materials into the fixed shell 12 through the feeding shell 14. The pharmaceutical raw materials entering the fixed shell 12 are subjected to the 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 member 24 as an example, when part of the pharmaceutical raw materials contact the inner wall of the lower side of the adjacent arc plate 25 and the baffle ring 32, the pharmaceutical raw materials are squeezed by the rotation of the arc plate 25 accompanied by the adjacent hammer member 24, so that the pharmaceutical raw materials are broken. The powder generated after the pharmaceutical raw materials are broken moves upward under the action of the gas conveyed by the air supply member 11, and then discharged through the analyzer 13. The pharmaceutical raw materials that cannot be discharged through the analyzer 13 fall downward, and the above-mentioned grinding process is repeated.

[0034] When all the pharmaceutical raw materials to be processed enter the fixed shell 12, the staff operates the second driving member 42 so that the telescopic part of the second driving member 42 drives the second connecting frame 43 to move downward, and the second connecting frame 43 drives all the second sealing members 44 to move downward at the same time. There is a gap between the second connecting frame 43 and all the connecting rods 34 and all the elastic telescopic rods 31 provide support force for the retaining ring 32 and all the connecting rods 34, so that the second connecting frame 43 will not drive all the connecting rods 34 to move synchronously during the initial downward movement.

[0035] During the downward movement of all the second sealing members 44, a negative pressure state is formed in the adjacent second liquid holding members 45, thereby causing the hydraulic oil in the liquid holding chamber of the second rotating shell 19 and all the first liquid holding members 21 to enter all the second liquid holding members 45 through the connecting ring 46 and the adjacent connecting pipes. After the pressure in all the first liquid holding members 21 is reduced, all the first sealing members 22 drive the adjacent connecting members 23, the hammer members 24, the arc plates 25 and the two adjacent limit plates 26 to move toward each other, thereby increasing the gap between all the arc plates 25 and the retaining ring 32, and providing space for all the fixed teeth 33 on the retaining ring 32 to move downward.

[0036] When the second connecting frame 43 moves downward until it contacts all the connecting rods 34, the second connecting frame 43 drives the retaining ring 32 and all the fixed teeth 33 to move downward synchronously through all the connecting rods 34. During the movement of the retaining ring 32, the telescopic parts of all the elastic telescopic rods 31 are squeezed. When the retaining ring 32 drives all the fixed teeth 33 to move until the middle part thereof is in the same horizontal plane with the middle part of all the hammering members 24, the telescopic part on the second driving member 42 no longer moves. At this time, there are also gaps between all the arc plates 25 and all the fixed teeth 33. Through the above operation steps, the device is adjusted to the medicine The processing method of the pharmaceutical raw materials is to switch the initial squeezing force applied by all the curved plates 25 and the retaining ring 32 to the pharmaceutical raw materials, and at the same time simulate the biting action while applying the squeezing force to the pharmaceutical raw materials by all the curved plates 25 and all the fixed teeth 33, so as to perform "bite-type crushing" on the pharmaceutical raw materials, realize the grinding of the pharmaceutical raw materials, and focus on the processing of pharmaceutical raw materials with large particle sizes, so as to avoid the pharmaceutical raw materials with large particle sizes slipping out from the inner side of all the curved plates 25 and the retaining ring 32 when the pharmaceutical raw materials with large particle sizes are initially processed, thereby causing the pharmaceutical raw materials with large particle sizes to be unable to be ground in the first time, resulting in an increase in the overall grinding time.

[0037] During the process of "bite-type crushing" of pharmaceutical raw materials, if the pharmaceutical raw materials are too hard or cannot be directly crushed at the first time, the extrusion pressure between the arc plate 25 and the adjacent fixed teeth 33 acting on the pharmaceutical raw materials cannot crush the pharmaceutical raw materials in time. Under the action of the reverse extrusion pressure applied by the pharmaceutical raw materials, the arc plate 25 drives the adjacent hammer member 24 to rotate counterclockwise along the adjacent connecting member 23 (from top to bottom, the adjacent torsion spring is gradually tightened during the clockwise rotation of the hammer member 24), so that the pharmaceutical raw materials that cannot be crushed in time fall from 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 pharmaceutical raw materials that cannot be crushed in time fall, the hammer member 24 is reset and rotated along the adjacent connecting member 23 under the action of the adjacent torsion spring.

[0038] During the processing of large-particle pharmaceutical raw materials, the baffle ring 32 partially blocks the air inlet of the air supply member 11 as it moves downward, reducing the thickness of the air inlet, thereby accelerating the flow rate of the air flow, allowing the gas to quickly enter the fixed shell 12, thereby enhancing the degree of blowing on the large-particle pharmaceutical raw materials in the fixed shell 12, and allowing the large-particle pharmaceutical raw materials in the fixed shell 12 to "move" in the fixed shell 12.

[0039] After processing the large-size pharmaceutical raw materials for a period of time, the staff manipulates the second driving member 42 to drive the second connecting frame 43 to reset and move, and the second connecting frame 43 drives all the second sealing members 44 to reset and move upward. After the second connecting frame 43 no longer squeezes the connecting rod 34, all the elastic telescopic rods 31 drive the baffle ring 32 and all the connecting rods 34 to reset and move upward (the baffle ring 32 no longer blocks the air inlet of the air supply member 11 during the upward movement), and the telescopic parts of all the elastic telescopic rods 31 move to Figure 4 After the state is reached, all the retaining rings 32 and all the connecting rods 34 stop moving. At that time, the second connecting frame 43 continues to drive all the second sealing members 44 to move upward. During the movement, all the second sealing members 44 respectively squeeze the hydraulic oil in the adjacent second liquid containing members 45, so that the hydraulic oil in all the second liquid containing members 45 flows back into the connecting ring 46 through the adjacent connecting pipes, increasing the pressure in the liquid containing chamber in the second rotating shell 19, so that all the first sealing members 22 drive all the connecting members 23 and their accessory parts to move in the opposite direction.

[0040] When all the first sealing members 22 and their attached parts move to Figure 5 and Figure 6 After reaching the state in the middle, the grinding of the raw material of the medicine is resumed, and the raw material of the medicine is squeezed between the arc plate 25 and the retaining ring 32 to achieve the grinding of the raw material of the medicine.

[0041] After the grinding of the raw material is completed, the worker controls the external feeding device to transport the raw material into the feeding shell 14 again. When the raw material is no longer needed to be ground, the worker can turn off all the electronic equipment mentioned above.

[0042] When it is necessary to adjust the fineness of the powder discharged after the pharmaceutical raw materials are ground, the staff can simply replace the analyzer 13 (the aperture of the filter in the analyzer 13 is small, which is suitable for powders of small fineness).

[0043] Embodiment 2: Based on embodiment 1, Figure 3 , Figure 4 , Figure 7 and Figure 8As shown, it also includes a transfer part: the transfer part is used to transfer the pharmaceutical raw materials on the bottom plate 15, and the transfer part includes: a plurality of evenly distributed L-shaped plates 51, all fixedly connected to the outer side of the rotating plate 17; the evenly distributed L-shaped plates 51 are used to keep the rotating plate 17 stable during rotation, a plurality of evenly distributed arc shells 52, all fixedly connected to the outer side of the rotating plate 17, and the evenly distributed arc shells 52 are used to evenly transfer the pharmaceutical raw materials on the bottom plate 15, the arc shells 52 are fixedly connected to the adjacent L-shaped plates 51, the arc shells 52 are slidably matched with the bottom plate 15, the arc shells 52 are provided with notches for transferring pharmaceutical raw materials, the inner and outer edges of the arc shells 52 are fixedly connected with arc blocks, the arc blocks are used to transfer pharmaceutical raw materials, and the upper side of the arc shell 52 is provided with a protrusion for conveying pharmaceutical raw materials to the adjacent hammering member 24 without affecting the normal processing of the pharmaceutical raw materials by the adjacent hammering member 24.

[0044] Several evenly distributed L-shaped plates 51 are distributed in a circular array, and the number of the L-shaped plates 51 is at least three. Several evenly distributed arc shells 52 are also distributed in a circular array, which are used to keep the rotating plate 17 stable during rotation. The number of arc shells 52 is consistent with that of adjacent L-shaped plates 51. The arc shells 52 are made of high-strength steel. While the arc shells 52 are arc-shaped, the heights of both sides of the arc shells 52 are inconsistent, which is used to "shovel" the pharmaceutical raw materials on the bottom plate 15, simulating the way of shoveling soil with a shovel, and processing the pharmaceutical raw materials.

[0045] like Figure 7 and Figure 8 As shown, a baffle 60 is slidably connected inside the arc shell 52 , and the baffle 60 is used to cover the gap on the adjacent arc shell 52 . The first rotating shell 18 is provided with a control unit, and the control unit is used to adjust the positions of a plurality of evenly distributed baffles 60 on the adjacent arc shells 52 .

[0046] The number of baffles 60 is consistent with the number of arcuate shells 52. When the baffles 60 do not block the gaps on the adjacent arcuate shells 52, small-particle pharmaceutical raw materials can fall through the gaps on the arcuate shells 52, thereby completing the "scooping up" of large-particle pharmaceutical raw materials.

[0047] like Figure 5 , Figure 6 and Figure 8 As shown, the control part includes: a third liquid holding member 61 whose number is the same as the arc shell 52, fixedly connected to and connected to the first rotating shell 18, and the first rotating shell 18 is connected to the liquid holding cavity in the second rotating shell 19; a third sealing member 62, which is slidably connected to the adjacent third liquid holding member 61, and the third sealing member 62 is fixedly connected to the adjacent baffle 60 on the side away from the adjacent third liquid holding member 61.

[0048] The side of the third liquid holding member 61 away from the first rotating shell 18 is not sealed with the adjacent third sealing member 62 , whereas the side of the third sealing member 62 facing the first rotating shell 18 is sealed with the adjacent third liquid holding member 61 .

[0049] During the grinding process of the existing Raymond mill, the transfer device in the Raymond mill will transfer the pharmaceutical raw materials at the bottom of the main machine upward to the grinding area of ​​the grinding device, but the transfer device will directly transfer the pharmaceutical raw materials at the bottom of the main machine to the grinding area indiscriminately. However, the pharmaceutical raw materials with small particle sizes are already relatively small and do not need to be further ground in large quantities. When they enter the grinding area together with the pharmaceutical raw materials with large particle sizes, the grinding energy cannot be effectively utilized for the large pieces of pharmaceutical raw materials that really need to be ground, thereby reducing the overall grinding efficiency. The present invention changes the transfer method of the existing transfer device so that the transfer device can autonomously screen when transferring the pharmaceutical raw materials, so that the pharmaceutical raw materials with small particle sizes will not be taken away, but the pharmaceutical raw materials with large particle sizes are more likely to be taken away, thereby improving the overall grinding efficiency.

[0050] During the grinding process of the pharmaceutical raw materials, the first rotating shell 18 drives all the arc shells 52 to rotate clockwise through all the L-shaped plates 51, so that the pharmaceutical raw materials on the bottom plate 15 are transferred upward during the rotation of the arc shell 52. Under the action of the protruding part of the arc shell 52 approaching the adjacent hammer member 24, the arc shell 52 directly transfers the pharmaceutical raw materials on the bottom plate 15 directly to between the hammer member 24 and the retaining ring 32, thereby enhancing the grinding effect on the mine.

[0051] In the process of switching the processing method for the pharmaceutical raw materials in Example 1, when the pressure in the liquid holding chamber in the second rotating shell 19 is reduced, the pressure in all the third liquid holding parts 61 is reduced synchronously, so that all the third sealing parts 62 drive all the baffles 60 to move toward each other, so that the baffles 60 no longer block the gap of the arc shell 52. In this way, when the arc shell 52 rotates with the rotating plate 17, the small-particle pharmaceutical raw materials can fall through the gap on the adjacent arc shell 52, and the large-particle pharmaceutical raw materials can enter the grinding area under the guidance of the arc shell 52.

[0052] When the pharmaceutical raw material processing method is switched again in Example 1, the pressure in the liquid holding chamber in the second rotating shell 19 increases, so that the pressure in all the third liquid holding parts 61 increases synchronously, so that all the third sealing parts 62 drive all the baffles 60 to move backwards, so that the baffles 60 can resume covering the gap of the arc shell 52.

[0053] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A powder fineness adjustable grinding device, comprising: A base frame (10); an air supply member (11) fixedly connected to the base frame (10); a fixed shell (12) fixedly connected to the air supply member (11), an air inlet for providing gas circulation is provided between the fixed shell (12) and the air supply member (11); an analyzer (13) fixedly connected to the fixed shell (12); a feed shell (14) fixedly connected to and in communication with one side of the fixed shell (12); a bottom plate (15) fixedly connected to a side of the air supply member (11) close to the base frame (10); A first driving member (16) is disposed in the base frame (10), wherein a power output portion of the first driving member (16) penetrates through the base plate (15) and is rotationally coupled thereto; The invention is characterized in that it further comprises: a rotating plate (17) fixedly connected to the power output portion of the first driving member (16), the rotating plate (17) being located inside the air supply member (11); a first rotating shell (18) fixedly connected to the upper side of the rotating plate (17); and a second rotating shell (19) fixedly connected to the upper side of the first rotating shell (18); a hammering part, arranged on the second rotating shell (19), the hammering part being used to grind the drug raw material in the fixed shell (12); A shielding portion, arranged on the bottom plate (15), the shielding portion being used to shield the air inlet between the fixed shell (12) and the air supply member (11); A driving unit is arranged in the base frame (10), and is used to change the hammering mode of the hammering unit on the drug raw material and to change the degree of shielding of the air inlet between the fixed shell (12) and the air supply member (11) by the shielding unit.

2. The powder fineness adjustable grinding equipment according to claim 1, characterized in that: The hammering part comprises: A plurality of evenly distributed first liquid holding members (21) are all fixedly connected to the upper side of the second rotating shell (19) and are used to keep the second rotating shell (19) stable during rotation; a liquid holding chamber is provided in the second rotating shell (19); the plurality of evenly distributed first liquid holding members (21) are all connected to the liquid holding chamber in the second rotating shell (19) and contain hydraulic oil; A plurality of evenly distributed first sealing members (22) are respectively slidably connected to adjacent first liquid containing members (21) and are used to keep the second rotating shell (19) stable during rotation; A plurality of evenly distributed connecting members (23) are respectively fixed to positions adjacent to the first sealing member (22) and away from the second rotating shell (19), and are used to keep the second rotating shell (19) stable during rotation; A plurality of evenly distributed hammering members (24) are rotatably connected to the lower sides of adjacent connecting members (23) and are used to keep the second rotating shell (19) stable during rotation. A torsion spring is fixedly connected between the hammering member (24) and the adjacent connecting member (23). The hammering member (24) is used to grind the pharmaceutical raw material.

3. The powder fineness adjustable grinding equipment according to claim 2, characterized in that: The hammer piece (24) is fixedly connected to an arc-shaped plate (25), the arc-shaped plate (25) is in a pointed sickle shape, and the arc-shaped plate (25) is used to extrude the drug raw material step by step.

4. The powder fineness adjustable grinding equipment according to claim 2, characterized in that: The connecting member (23) is fixedly connected to a plurality of groups of limit plates (26), and the plurality of groups of limit plates (26) are all in limited sliding cooperation with the second rotating shell (19), and the limit plates (26) are used to limit the sliding state of adjacent connecting members (23).

5. The powder fineness adjustable grinding equipment according to claim 3, characterized in that: The shielding portion comprises: A plurality of elastic telescopic rods (31) are fixedly connected to the upper side of the bottom plate (15); a retaining ring (32) fixedly connected to the telescopic ends of a plurality of evenly distributed elastic telescopic rods (31), a gap being left between the retaining ring (32) and all the arc-shaped plates (25), a guide ring being fixedly connected to the upper side of the retaining ring (32), and the retaining ring (32) being used to adjust the air intake volume of the air intake port between the fixed shell (12) and the air supply member (11); A plurality of fixed teeth (33) are fixedly connected to the inner side of the retaining ring (32), and gaps are left between the plurality of fixed teeth (33) and the plurality of evenly distributed arc-shaped plates (25); A plurality of connecting rods (34) are fixedly connected to the upper side of the retaining ring (32).

6. The powder fineness adjustable grinding equipment according to claim 5, characterized in that: The driving unit comprises: A first connecting frame (41) is fixedly connected inside the fixing shell (12); A second driving member (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 member (42), the symmetrically distributed connecting rods (34) are all pressed and matched with the second connecting frame (43), and gaps are 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 holding members (45) are all fixedly connected to the first connecting frame (41), and the second sealing member (44) is slidably matched with adjacent second liquid holding members (45); A connecting ring (46) is fixedly connected to the first connecting frame (41); the lower side of the connecting ring (46) is rotatably matched with the second rotating shell (19) and is communicated with the liquid storage chamber therein; the upper side of the second liquid storage member (45) is fixedly connected to the connecting ring (46) and is communicated with a connecting pipe and both contain hydraulic oil.

7. The powder fineness adjustable grinding equipment according to claim 6, characterized in that: Also includes: A transfer part is arranged in the fixed shell (12), and is used to transfer the drug raw material on the bottom plate (15), and comprises: A plurality of evenly distributed L-shaped plates (51) are fixedly connected to the outer side of the rotating plate (17), and the evenly distributed L-shaped plates (51) are used to keep the rotating plate (17) stable during rotation; A plurality of evenly distributed arc-shaped shells (52) are fixedly connected to the outer side of the rotating plate (17); the evenly distributed arc-shaped shells (52) are used to evenly transfer the pharmaceutical raw materials on the bottom plate (15); the arc-shaped shells (52) are fixedly connected to the adjacent L-shaped plate (51); the arc-shaped shells (52) are slidably matched with the bottom plate (15); the arc-shaped shells (52) are provided with notches for transferring the pharmaceutical raw materials; arc-shaped blocks are fixedly connected to the inner edge and the outer edge of the arc-shaped shell (52); the arc-shaped blocks are used to transfer the pharmaceutical raw materials.

8. The powder fineness adjustable grinding equipment according to claim 7, characterized in that: A protrusion is provided on the upper side of the arc-shaped shell (52) for conveying the pharmaceutical raw material to the adjacent hammering member (24) without affecting the normal processing of the pharmaceutical raw material by the adjacent hammering member (24).

9. The powder fineness adjustable grinding equipment according to claim 7, characterized in that: A baffle (60) is slidably connected inside the arc-shaped shell (52), and the baffle (60) is used to cover the gap on the adjacent arc-shaped shell (52). The first rotating shell (18) is provided with a control unit, and the control unit is used to adjust the positions of a plurality of evenly distributed baffles (60) on the adjacent arc-shaped shells (52).

10. The powder fineness adjustable grinding equipment according to claim 9, characterized in that: The control unit includes: The third liquid holding members (61) are the same number as the arc-shaped shell (52), fixedly connected to and connected to the first rotating shell (18), and the first rotating shell (18) is connected to the liquid holding chamber in the second rotating shell (19); The third sealing member (62) is slidably connected to the adjacent third liquid holding member (61), and a side of the third sealing member (62) away from the adjacent third liquid holding member (61) is fixedly connected to the adjacent baffle (60).

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