Grinding and extracting machine and method for preparing pure natural component Yao bath powder

Abstract

The invention relates to the technical field of processing and preparation of Yao bath powder, and discloses a grinding and extracting machine and method for preparing pure natural component Yao bath powder, the grinding and extracting machine comprises a grinding barrel and further comprises a grinding part rotationally installed in the grinding barrel, the bottom end of the grinding part is an inverted-cone-shaped grinding part, the inner bottom of the grinding barrel is provided with a conical surface matched with the grinding part, and the grinding part is rotationally installed in the grinding barrel. A grinding gap is formed between the conical surface and the grinding part of the grinding piece; and the driving part is used for driving the grinding piece to rotate, and the grinding piece has a high-speed rotating speed state and a low-speed rotating speed state. The grinding piece is switched back and forth between a low-speed grinding state and a high-speed centrifugal state, and the grinding gap between the grinding piece and the inner conical surface of the grinding barrel is adjusted, so that the effect of cleaning grease adhered to the surface of the grinding piece can be achieved, and the situation that the acting force during grinding is reduced due to excessive grease is avoided; and meanwhile, the adhesion phenomenon caused by the fact that grease adheres to powder particles can be avoided, and the grinding quality is further improved.

Description

Technical Field

[0001] The invention relates to the technical field of Yao bath powder processing and preparation, in particular to a grinding and extracting machine and a method for preparing Yao bath powder with pure natural ingredients. Background Art

[0002] Yao bath powder is a product made using the traditional Yao medicinal bath formula. Its main functions include: relieving fatigue, promoting metabolism, assisting weight loss, assisting in the treatment of diseases, and improving skin conditions, etc. Its usage method is to put it in warm water for a bath, and through the thermal effect of water and the action of herbal ingredients, the above-mentioned health care effects are achieved.

[0003] The raw materials used in the preparation of Yao bath powder are picked from the birthplace of Yao bath. It is prepared through processes such as material selection, cleaning, drying, chopping, grinding, screening and packaging. Among them, the grinding step is the key to the preparation of Yao bath powder. It is necessary to ensure that the herbs are fully ground to better release their medicinal effects. Therefore, the grinding quality of Chinese herbal medicine is crucial.

[0004] At present, for the grinding equipment of Chinese herbal medicine, China Patent Publication No. CN118060004B discloses a preparation equipment and method of a Chinese medicine composition for treating jaundice. The preparation equipment controls the temperature of the grinding gap to avoid the adhesion of medicinal materials with high sugar content due to the dissolution of sugar caused by excessive temperature, thereby ensuring its stability during the grinding process and the quality of the medicinal materials.

[0005] However, in the process of grinding the relevant Chinese herbal medicines contained in Yao bath powder, some Chinese herbal medicines will release oil, such as mugwort, angelica, ephedra or Millettia reticulata, and these secreted oils will coat the grinding head to form an oil film. The existence of the oil film will not only reduce the grinding force and grinding efficiency, but also cause the oil to stick to the powder particles and cause adhesion, thereby reducing the grinding quality. Summary of the invention

[0006] The object of the present invention is to provide a grinding and extracting machine and method for preparing pure natural Yao bath powder, so as to solve at least one technical problem existing in the above-mentioned prior art.

[0007] To achieve the above object, the present invention provides the following technical solution: a grinding and extracting machine for preparing pure natural Yao bath powder, comprising a grinding barrel, and also comprising: A grinding piece is rotatably installed in the grinding barrel, wherein the bottom end of the grinding piece is an inverted conical grinding portion, the inner bottom of the grinding barrel is provided with a conical surface adapted thereto, and a grinding gap is provided between the conical surface and the grinding portion of the grinding piece; The driving part is used to drive the grinding piece to rotate, and the grinding piece has two speed states: high speed and low speed. When the grinding piece and the conical surface at the bottom of the grinding barrel maintain a normal grinding gap, the driving part makes the grinding piece in the low speed grinding state. When the grinding gap between the grinding piece and the conical surface at the bottom of the grinding barrel increases, the driving part switches the grinding piece to the high speed centrifugal state. The oil removal part is arranged at the cone bottom position at the bottom end of the grinding piece, and absorbs the centrifugally flowing grease layer when the grinding piece is switched to a high-speed centrifugal state.

[0008] Preferably, the driving part comprises a connecting shaft integrally formed with the grinding piece, and a first speed-changing cam is fixed to the top end of the connecting shaft, an outer wall of the first speed-changing cam is provided with an arc surface which gradually changes the diameter of the first speed-changing cam, a fixing bracket is fixed to the inner wall of the grinding barrel, the connecting shaft is installed in a hole opened in the center of the fixing bracket, and the connecting shaft can rotate and slide in the hole, and a first spring is provided between the first speed-changing cam and the fixing bracket; A spline shaft is rotatably mounted on the side wall of the grinding barrel, and a second speed-changing cam is fixed to the end of the spline shaft. The second speed-changing cam has the same shape as the first speed-changing cam. A second spring is arranged between the second speed-changing cam and the inner wall of the grinding barrel. A motor for driving the spline shaft to rotate is mounted on the outer wall of the grinding barrel. The driving part also includes a friction wheel installed between the first speed change cam and the second speed change cam, and the friction wheel is frictionally transmitted with the conical surfaces of the first speed change cam and the second speed change cam, and the friction wheel can rotate to adjust its contact position with the conical surfaces of the first speed change cam and the second speed change cam.

[0009] Preferably, an adjusting shaft is rotatably installed on the inner wall of the grinding barrel, the middle part of the adjusting shaft is set as a connecting frame, and the friction wheel is rotatably installed in the connecting frame through the installing shaft, a gear is fixed to one end of the adjusting shaft extending out of the outer wall of the grinding barrel, and the gear is rotatably adjusted through an external structure.

[0010] Preferably, the oil removal part includes oil-absorbing cotton, the bottom of the fixed bracket is fixedly connected with a fixed ring through a fixed vertical frame, and the inner ring of the fixed ring is rotatably installed with an inner hook ring, the inner hook ring is sleeved on the outer ring of the grinding part, and can move relative to the grinding part in the axial direction, the bottom end of the inner hook ring is set as an inner buckle ring, the conical bottom of the grinding part is provided with a stepped groove, and an annular cavity is formed between the stepped groove and the inner buckle ring at the bottom end of the inner hook ring, and the oil-absorbing cotton is installed in the annular cavity.

[0011] Preferably, an air outlet is provided at the center of the grinding member, and the top outlet of the air outlet passes through the top of the first speed change cam, a plurality of air branch passages arranged in a ring shape are provided inside the grinding member near the bottom conical surface, and the air branch passages are connected with the air outlet, an air intake channel connected with an external air intake device is provided inside the fixed vertical frame, and the air intake channel can be intermittently connected with the air branch passages.

[0012] Preferably, a flaring groove is provided at the top entrance of the air inlet channel, and a fan blade is coaxially fixed to the mounting shaft. When the friction wheel contacts the large-diameter conical surface of the first speed change cam and the small-diameter conical surface of the second speed change cam, the fan blade faces the flaring groove of the air inlet channel.

[0013] Preferably, a temperature sensor is installed in each of the air channels.

[0014] Preferably, a material dropping cavity is provided at the bottom of the grinding barrel, and the material dropping cavity is connected to the inner conical surface of the grinding barrel through a material dropping channel, and a filter is installed in the material dropping channel.

[0015] Preferably, a detachable storage bin is installed in the blanking cavity, and a pressure sensor is provided in the storage bin.

[0016] A grinding method for preparing pure natural Yao bath powder comprises the following steps: S1, putting the Chinese herbal medicine after preliminary crushing into the gap between the grinding piece and the grinding barrel, so that it enters the grinding gap between the grinding piece and the grinding barrel; S2, the driving unit starts to drive the grinding piece to rotate so that it cooperates with the conical surface at the bottom of the grinding barrel to grind it, and when a normal grinding gap is maintained between the grinding piece and the conical surface at the bottom of the grinding barrel, the driving unit puts the grinding piece in a low-speed grinding state, so that it maintains the grinding rate while reducing the heat generated by grinding through low-speed grinding; S3, when an oil film is formed on the conical surface of the grinding piece, the grinding gap between the grinding piece and the conical surface at the bottom of the grinding barrel is increased, and at the same time, the driving unit switches the grinding piece to a high-speed centrifugal state to first throw off the powder particles adhering to the bottom conical surface; S4, the driving unit then causes the grinding piece to continue to rotate centrifugally at high speed, so that the oil film on its surface flows along the conical surface from the cone tip to the cone bottom under the action of centrifugal force, presenting a form of pushing toward the edge, thereby reducing its accumulation in the grinding area; S5. In the process of the oil film rotating and centrifugally flowing toward the edge of the cone bottom, the oil removal part absorbs the centrifugally flowing grease layer, thereby achieving the purpose of cleaning the grease on the conical surface of the grinding part. After the cleaning is completed, the normal grinding gap between the grinding part and the conical surface at the bottom of the grinding barrel is restored, and then the above steps S1 and S2 are repeated.

[0017] Compared with the prior art, the present invention has the following beneficial effects: The present invention achieves the effect of cleaning grease adhered to the surface of the grinding piece by switching the grinding piece back and forth between a low-speed grinding state and a high-speed centrifugal state, in conjunction with the adjustment of the grinding gap between the grinding piece and the conical surface inside the grinding barrel, so as to avoid excessive grease retention and reduction of the grinding force, and also can avoid grease adhering to powder particles and causing adhesion, thereby further improving the grinding quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a front view of the present invention; Figure 2 For the present invention Figure 1 Sectional view along AA; Figure 3 For the present invention Figure 2 Cutaway stereogram of perspective; Figure 4 For the present invention Figure 2 The enlarged view of point C in the figure; Figure 5 It is a state diagram and a partial view of the grinding member and the inner hook ring after relative displacement occurs in the present invention; Figure 6 It is a left side view of the present invention; Figure 7 For the present invention Figure 6 A cutaway perspective view along the middle line BB; Figure 8 It is a schematic diagram of the three-dimensional structure of the second speed-changing cam of the present invention after being symmetrically arranged; Fig. 9 For the present invention Figure 8 A cutaway perspective view of Fig.10 It is a semi-section exploded perspective view of the grinding element and the structure thereon of the present invention.

[0019] In the figure: 1. grinding barrel; 2. fixed bracket; 3. connecting shaft; 4. first speed change cam; 5. first spring; 6. grinding part; 7. material drop channel; 8. filter screen; 9. storage bin; 10. mounting shaft; 11. friction wheel; 12. second speed change cam; 13. spline shaft; 14. second spring; 15. fan blade; 16. fixed vertical frame; 17. air inlet channel; 18. air outlet channel; 19. air distribution channel; 20. inner hook ring; 21. oil-absorbing cotton; 22. adjusting shaft; 23. connecting frame; 24. gear; 25. fixing ring. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] See also Figures 1 to 10 The present invention provides a technical solution: a grinding and extracting machine for preparing pure natural Yao bath powder, comprising a grinding barrel 1, and also comprising: The grinding piece 6 is rotatably installed in the grinding barrel 1, the bottom end of the grinding piece 6 is an inverted conical grinding portion, the inner bottom of the grinding barrel 1 is provided with a conical surface adapted thereto, and a grinding gap is provided between the conical surface and the grinding portion of the grinding piece 6; The driving part is used to drive the grinding member 6 to rotate, and the grinding member 6 has two speed states: high speed and low speed. When the grinding member 6 and the conical surface at the bottom of the grinding barrel 1 maintain a normal grinding gap, the driving part makes the grinding member 6 in the low speed grinding state. When the grinding gap between the grinding member 6 and the conical surface at the bottom of the grinding barrel 1 increases, the driving part switches the grinding member 6 to the high speed centrifugal state. The oil removal part is arranged at the cone bottom position at the bottom end of the grinding member 6, and absorbs the centrifugally flowing grease layer when the grinding member 6 is switched to a high-speed centrifugal state.

[0022] When the grinding and extracting machine is in use, the Chinese herbal medicine that has been initially crushed is put into the gap between the grinding piece 6 and the grinding barrel 1, so that it enters the grinding gap between the grinding piece 6 and the grinding barrel 1, and then the driving part starts to drive the grinding piece 6 to rotate, so that it cooperates with the conical surface at the bottom of the grinding barrel 1 to grind it, and when the normal grinding gap is maintained between the grinding piece 6 and the conical surface at the bottom of the grinding barrel 1, the driving part puts the grinding piece 6 in a low-speed grinding state, so that while maintaining the grinding rate, the heat generated by grinding is reduced by low-speed grinding, thereby also inhibiting the secretion of oil. As the grinding amount increases, oil will gradually adhere to the grinding piece 6, and an oil film will be formed on the conical surface of the grinding piece 6. At this time, the grinding gap between the grinding piece 6 and the bottom conical surface of the grinding barrel 1 is increased, and the driving unit switches the grinding piece 6 to a high-speed centrifugal state, first throwing off the powder particles adhering to the bottom conical surface, and then the driving unit causes the grinding piece 6 to continue to rotate centrifugally at high speed, so that the oil film on its surface flows from the cone tip to the cone bottom along the cone surface under the action of centrifugal force, presenting a form of pushing toward the edge, reducing its accumulation in the grinding area, and in this process, the oil removal unit will adsorb the grease layer that centrifugally flows to the edge of the cone bottom, thereby achieving the purpose of cleaning the grease on the cone surface of the grinding piece 6. After the cleaning is completed, the normal grinding gap is restored between the grinding piece 6 and the bottom conical surface of the grinding barrel 1, and then the above grinding steps can be repeated.

[0023] In this way, by switching the grinding member 6 back and forth between the low-speed grinding state and the high-speed centrifugal state, and adjusting the grinding gap between the grinding member 6 and the inner conical surface of the grinding barrel 1, the grease adhering to the surface of the grinding member 6 can be cleaned to avoid excessive grease retention and reduce the force during grinding. At the same time, it can also avoid grease adhering to the powder particles and causing adhesion, thereby further improving the grinding quality.

[0024] It is worth mentioning that since the viscosity of the oil secreted by Chinese herbal medicines during the grinding process is relatively high, under the centrifugal force of the grinding piece 6, the oil will not be directly thrown away from the grinding piece 6, but will gradually flow and migrate from the tip of the cone to the edge along the conical surface at the bottom of the grinding piece 6 until it contacts the oil removal part and is adsorbed by it. At the same time, the taper of the bottom will also affect the flow of oil. The flatter the angle, the less likely the oil is to be directly thrown away from the grinding piece 6. By adjusting the taper, the oil can be further prevented from directly separating from the grinding piece 6.

[0025] In one of the preferred embodiments, an implementation method for driving the grinding member 6 to switch between two states is provided. Figure 2 ; The driving part includes a connecting shaft 3 integrally formed with the grinding member 6, and a first speed-changing cam 4 is fixed to the top end of the connecting shaft 3, and an outer wall of the first speed-changing cam 4 is provided with an arc surface that gradually changes the diameter of the first speed-changing cam 4, and a fixing bracket 2 is fixed to the inner wall of the grinding barrel 1, and the connecting shaft 3 is installed in a hole opened in the center of the fixing bracket 2, and the connecting shaft 3 can rotate and slide in the hole, and a first spring 5 is provided between the first speed-changing cam 4 and the fixing bracket 2; A spline shaft 13 is rotatably mounted on the side wall of the grinding barrel 1, and a second speed-changing cam 12 is fixed to the end of the spline shaft 13. The second speed-changing cam 12 has the same shape as the first speed-changing cam 4. A second spring 14 is arranged between the second speed-changing cam 12 and the inner wall of the grinding barrel 1. A motor for driving the spline shaft 13 to rotate is mounted on the outer wall of the grinding barrel 1. The driving unit also includes a friction wheel 11 installed between the first speed change cam 4 and the second speed change cam 12. Friction transmission is achieved between the friction wheel 11 and the conical surfaces of the first speed change cam 4 and the second speed change cam 12, and the friction wheel 11 can rotate to adjust its contact position with the conical surfaces of the first speed change cam 4 and the second speed change cam 12.

[0026] During grinding, the spline shaft 13 and the second speed-changing cam 12 rotate under the drive of the external motor, and the first speed-changing cam 4 is driven to rotate under the friction transmission of the friction wheel 11, thereby driving the connecting shaft 3 and the grinding piece 6 to rotate together to complete the grinding process; In the grinding state, the friction wheel 11 is in frictional contact with the conical surface of the second speed change cam 12 at a smaller diameter position, and is in frictional contact with the conical surface of the first speed change cam 4 at a larger diameter position. Figure 2 In the state shown, the grinding member 6 can maintain low-speed grinding in the grinding state by driving the large with the small, which can not only ensure the grinding effect, but also reduce the heat generated by grinding and the temperature in the grinding state, thereby reducing the secretion of grease and the sticking phenomenon in the grinding process; Moreover, it is worth noting that in this grinding state, the friction wheel 11 will also exert a certain pressure downward on the first speed-changing cam 4 during the friction transmission process, so that the first spring 5 is in a compressed state, and the grinding member 6 also maintains a normal grinding gap with the inner conical surface of the grinding barrel 1; When the grease adhered to the conical surface of the grinding member 6 exceeds the preset value and needs to be cleaned, the friction wheel 11 is rotated and adjusted by the external mechanism to change the contact position between the first speed change cam 4 and the second speed change cam 12, so that the friction wheel 11 is in friction contact with the smaller diameter position of the first speed change cam 4 and the larger diameter position of the second speed change cam 12. Figure 2 The middle tilted state close to vertical is rotated to the tilted state close to horizontal, thereby completing the switching of the large driving the small mode and increasing the rotation speed of the first speed change cam 4 and the grinding member 6; At the same time, since the rotation of the friction wheel 11 will reduce the downward force of the first speed change cam 4, under the action of the first spring 5, the first speed change cam 4 and the grinding member 6 will move upward, thereby increasing the grinding gap between the grinding member 6 and the inner conical surface of the grinding barrel 1, providing space for subsequent grease cleaning.

[0027] It is worth mentioning that the arrangement of the second spring 14 and the spline shaft 13 enables the second speed change cam 12 to be moved and adjusted in its axial direction, so that the rotation of the second speed change cam 12 and the friction wheel 11 can cooperate with each other and always maintain a friction contact state; In this way, the grinding member 6 can be switched back and forth between the low-speed grinding state and the high-speed centrifugal state by rotating the friction wheel 11. At the same time, the grinding gap between the grinding member 6 and the inner conical surface of the grinding barrel 1 can be automatically adjusted to provide a corresponding space state for grinding and grease cleaning.

[0028] See also Figure 8 and Fig. 9 The above-mentioned second speed-changing cam 12 and friction wheel 11 and other structures can be symmetrically arranged, so that the force on the first speed-changing cam 4 can be more uniform, and they can be added or reduced according to the specific situation.

[0029] In one of the more preferred embodiments, an implementation method for adjusting the friction wheel 11 is provided. Figure 7 and Figure 8 ; An adjusting shaft 22 is rotatably mounted on the inner wall of the grinding barrel 1, the middle portion of the adjusting shaft 22 is set as a connecting frame 23, and the friction wheel 11 is rotatably mounted in the connecting frame 23 through the mounting shaft 10. A gear 24 is fixed to one end of the adjusting shaft 22 extending out of the outer wall of the grinding barrel 1, and the gear 24 is rotatably adjusted through an external structure.

[0030] By rotating the adjusting gear 24 through an external mechanism, the adjusting shaft 22 can be driven to rotate and adjust, so that the connecting frame 23 and the friction wheel 11 can also rotate and adjust, thereby achieving the purpose of the above-mentioned state switching; When the above structure is symmetrically arranged, the gears 24 can also be symmetrically arranged, and the two gears 24 are meshed with each other, so that by driving one of the gears 24 to rotate, the two gears can be driven to rotate and adjust synchronously. Specifically, an external motor drive method or a manual adjustment method can be adopted, which can be determined according to the situation.

[0031] In one of the more preferred embodiments, an implementation of an oil removal part is provided, which can be specifically referred to in Figure 4 and Fig.10 ; The oil removal part includes oil-absorbing cotton 21. The bottom of the fixed bracket 2 is fixedly connected with a fixed ring 25 through a fixed vertical frame 16, and the inner ring of the fixed ring 25 is rotatably installed with an inner hook ring 20. The inner hook ring 20 is sleeved on the outer ring of the grinding member 6 and can move relative to the grinding member 6 in the axial direction. The bottom end of the inner hook ring 20 is set as an inner buckle ring. A stepped groove is opened at the conical bottom of the grinding member 6, and an annular cavity is formed between the stepped groove and the inner buckle ring at the bottom end of the inner hook ring 20, and the oil-absorbing cotton 21 is installed in the annular cavity.

[0032] As can be seen from the above content, when the grinding member 6 is switched to the high-speed centrifugal state, the grinding member 6 and the first speed change cam 4 will move upward under the action of the first spring 5, so that the grinding member 6 and the inner hook ring 20 are relatively displaced, exposing the oil-absorbing cotton 21 in the annular cavity. Figure 5 The oil-absorbing cotton 21 is designed to be annular, and will wrap around the edge of the stepped groove at the bottom of the cone of the grinding piece 6, so that the grease that migrates to the edge of the bottom of the cone can be absorbed during the centrifugal rotation of the grinding piece 6, so as to achieve the effect of oil removal; After the oil removal is completed, when the grinding member 6 is switched back to the low-speed grinding state, the relative movement of the grinding member 6 and the inner hook ring 20 will cause the oil-absorbing cotton 21 to be retracted into the annular cavity, preventing the oil-absorbing cotton 21 from being directly exposed to the outside. In this way, the state switching of the oil-absorbing cotton 21 can also be completed during the state switching process of the grinding member 6, thereby improving the efficiency of oil removal.

[0033] In this way, the oil-absorbing cotton 21 can be disassembled and replaced at regular intervals.

[0034] In one of the preferred embodiments, an implementation method for controlling the temperature of the grinding member 6 is provided. Figure 3 and Fig.10 ; An air outlet 18 is provided at the center of the grinding member 6, and the top outlet of the air outlet 18 passes through the top of the first speed change cam 4, and a plurality of air branching passages 19 arranged in a ring shape are provided inside the grinding member 6 near the bottom conical surface, and the air branching passages 19 are connected to the air outlet 18, and an air intake passage 17 connected to an external air intake device is provided inside the fixed vertical frame 16, and the air intake passage 17 can be intermittently connected to the air branching passage 19.

[0035] As can be seen from the previous content, lowering the temperature during grinding can have a certain inhibitory effect on the secretion of grease and the anti-adhesion phenomenon. Therefore, when the grinding piece 6 is in a low-speed grinding state, air is introduced into the air inlet channel 17 through an external air intake device. When the grinding piece 6 rotates, it will drive the inner hook ring 20 to rotate, so that it rotates relative to the fixed ring 25, and the air inlet channel 17 and the air channel 19 are intermittently connected, so that air can be intermittently introduced into each air channel 19, and the introduced air will be discharged through the air outlet 18, taking out the heat generated by the grinding piece 6 during grinding; In this way, by intermittently introducing air through the air distribution channel 19, the temperature of each position of the grinding element 6 can be made more relatively uniform and maintained within a relatively stable low temperature range, so as to improve the grinding efficiency.

[0036] In one of the preferred embodiments, an implementation method for inletting air into the air inlet passage 17 is provided. Figure 2 and Figure 3 ; A flared groove is provided at the top entrance of the air intake channel 17, and a fan blade 15 is coaxially fixed to the mounting shaft 10. When the friction wheel 11 contacts the large-diameter conical surface of the first speed-changing cam 4 and the small-diameter conical surface of the second speed-changing cam 12, the fan blade 15 faces the flared groove of the air intake channel 17.

[0037] As can be seen from the above content, when the grinding member 6 is in the low-speed grinding state, the friction wheel 11 contacts the large-diameter conical surface of the first speed-changing cam 4 and the small-diameter conical surface of the second speed-changing cam 12, and the friction wheel 11 is also in an inclined state close to vertical. At this time, the fan blades 15 face the expanded groove of the air inlet channel 17, so that when the friction wheel 11 rotates, the fan blades 15 will be driven to rotate and blow air into the air inlet channel 17 to ensure the flow of heat dissipation airflow and the temperature control of the grinding member 6 in the grinding state; When the grinding element 6 is switched to the high-speed centrifugal state, the friction wheel 11 will rotate and adjust to a tilted state close to the horizontal state, so that the direction of the fan blade 15 is separated from the expanded groove position of the air inlet channel 17, thereby reducing the flow of air. In this way, the grinding element 6 will no longer be cooled in the high-speed centrifugal state, so that it can be kept at a higher temperature, which can facilitate the flow of grease on the bottom conical surface of the grinding element 6 and provide a temperature environment for subsequent oil removal; Then, when the grinding element 6 is switched back to the low-speed grinding state, the fan blades 15 are also turned back to the expanded groove of the air inlet channel 17, so that the temperature of the grinding element 6 can be controlled while the state is switched, so that it can adapt to the use environment under different states.

[0038] In one of the more preferred embodiments, a temperature sensor is installed in each gas branch channel 19 .

[0039] In this embodiment, an implementation method for monitoring the temperature in the air distribution channel 19 is provided. The temperature difference in the air distribution channel 19 is detected by a temperature sensor. Since the surface of the grinding piece 6 is covered with grease and an oil film is formed, the temperature conduction of the grinding piece 6 is affected, so the temperature difference in the air distribution channel 19 will change. By monitoring the temperature difference inside, it can be determined whether the grinding piece 6 is covered with an oil film, thereby indirectly monitoring the removal of the oil film.

[0040] In one of the more preferred embodiments, a material dropping cavity is provided at the bottom of the grinding barrel 1 , and the material dropping cavity is connected to the inner conical surface of the grinding barrel 1 through a material dropping channel 7 , and a filter screen 8 is installed in the material dropping channel 7 .

[0041] In one of the more preferred embodiments, a detachable storage bin 9 is installed in the blanking cavity, and a pressure sensor is provided in the storage bin 9 .

[0042] The weight of the medicinal materials in the storage bin 9 is monitored by the pressure sensor therein, so that the material falling rate in the storage bin 9 can be known, and then it can be determined whether there is any abnormality in the grinding process of the medicinal materials. According to the data of the pressure sensor, the grinding parameters and production parameters such as grinding time and grinding speed can be adjusted. Through real-time monitoring and adjustment, the consistency of the grinding effect of each batch of medicinal materials can be ensured, thereby improving the stability and reliability of the product.

[0043] A grinding method for preparing pure natural Yao bath powder comprises the following steps: S1, putting the Chinese herbal medicine after preliminary crushing into the gap between the grinding piece 6 and the grinding barrel 1, so that it enters the grinding gap between the grinding piece 6 and the grinding barrel 1; S2, the driving unit starts to drive the grinding member 6 to rotate, so that it cooperates with the conical surface at the bottom of the grinding barrel 1 to grind it, and when a normal grinding gap is maintained between the grinding member 6 and the conical surface at the bottom of the grinding barrel 1, the driving unit puts the grinding member 6 in a low-speed grinding state, so that it maintains the grinding rate while reducing the heat generated by grinding through low-speed grinding; S3, when an oil film is formed on the conical surface of the grinding element 6, the grinding gap between the grinding element 6 and the bottom conical surface of the grinding barrel 1 is increased, and at the same time, the driving unit switches the grinding element 6 to a high-speed centrifugal state to first throw off the powder particles adhering to the bottom conical surface; S4, the driving unit then makes the grinding element 6 continue to rotate centrifugally at high speed, so that the oil film on its surface flows along the conical surface from the cone tip to the cone bottom under the action of centrifugal force, presenting a form of pushing toward the edge, thereby reducing its accumulation in the grinding area; S5. In the process of the oil film rotating and centrifugally flowing toward the edge of the cone bottom, the oil removal part absorbs the centrifugally flowing grease layer, thereby achieving the purpose of cleaning the grease on the conical surface of the grinding member 6. After the cleaning is completed, the normal grinding gap between the grinding member 6 and the bottom conical surface of the grinding barrel 1 is restored, and then the above steps S1 and S2 are repeated.

[0044] The standard parts used in this embodiment can be purchased directly from the market, and the non-standard structural components recorded in the specification and the drawings can also be directly processed according to the existing technical common sense. At the same time, the connection method of each component adopts the mature conventional means in the prior art, and the machinery, parts and equipment all adopt the conventional models in the prior art, so no specific description will be given here.

[0045] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A grinding and extraction machine for preparing pure natural Yao bath powder, comprising a grinding barrel (1), characterized in that: Also includes: A grinding piece (6) is rotatably mounted in a grinding barrel (1), wherein the bottom end of the grinding piece (6) is an inverted conical grinding portion, the inner bottom of the grinding barrel (1) is provided with a conical surface matching the grinding piece, and a grinding gap is provided between the conical surface and the grinding portion of the grinding piece (6); A driving unit, used for driving the grinding piece (6) to rotate, wherein the grinding piece (6) has two rotation speed states, namely, a high speed and a low speed. When a normal grinding gap is maintained between the grinding piece (6) and the conical surface at the bottom of the grinding barrel (1), the driving unit causes the grinding piece (6) to be in a low speed grinding state. When the grinding gap between the grinding piece (6) and the conical surface at the bottom of the grinding barrel (1) increases, the driving unit causes the grinding piece (6) to switch to a high speed centrifugal state. The oil removal portion is arranged at the cone bottom position at the bottom end of the grinding piece (6), and absorbs the centrifugally flowing grease layer when the grinding piece (6) is switched to a high-speed centrifugal state.

2. The grinding and extracting machine for preparing the pure natural Yaoyu powder according to claim 1, characterized in that: The driving part comprises a connecting shaft (3) integrally formed with the grinding member (6), and a first speed-changing cam (4) is fixed to the top end of the connecting shaft (3), and an outer wall of the first speed-changing cam (4) is provided with an arc surface which causes the diameter of the first speed-changing cam (4) to gradually change; a fixing bracket (2) is fixed to the inner wall of the grinding barrel (1), and the connecting shaft (3) is installed in a hole opened in the center of the fixing bracket (2), and the connecting shaft (3) can rotate and slide in the hole; a first spring (5) is provided between the first speed-changing cam (4) and the fixing bracket (2); A spline shaft (13) is rotatably mounted on the side wall of the grinding barrel (1), and a second speed-changing cam (12) is fixed to the end of the spline shaft (13); the second speed-changing cam (12) has the same shape as the first speed-changing cam (4); a second spring (14) is provided between the second speed-changing cam (12) and the inner wall of the grinding barrel (1); and a motor for driving the spline shaft (13) to rotate is mounted on the outer wall of the grinding barrel (1); The driving unit further comprises a friction wheel (11) mounted between the first speed change cam (4) and the second speed change cam (12), wherein friction transmission is performed between the friction wheel (11) and the conical surfaces of the first speed change cam (4) and the second speed change cam (12), and the friction wheel (11) can be rotated to adjust its contact position with the conical surfaces of the first speed change cam (4) and the second speed change cam (12).

3. The grinding and extracting machine for preparing the pure natural Yaoyu powder according to claim 2, characterized in that: An adjusting shaft (22) is rotatably mounted on the inner wall of the grinding barrel (1), a middle portion of the adjusting shaft (22) is provided as a connecting frame (23), and the friction wheel (11) is rotatably mounted in the connecting frame (23) via a mounting shaft (10), a gear (24) is fixed to one end of the adjusting shaft (22) extending out of the outer wall of the grinding barrel (1), and the gear (24) is rotatably adjusted via an external structure.

4. The grinding and extracting machine for preparing the pure natural Yaoyu powder according to claim 3, characterized in that: The oil removal part comprises oil-absorbing cotton (21), the bottom of the fixed bracket (2) is fixedly connected with a fixed ring (25) through a fixed vertical frame (16), and the inner ring of the fixed ring (25) is rotatably mounted with an inner hook ring (20), the inner hook ring (20) is sleeved on the outer ring of the grinding member (6), and can move relative to the grinding member (6) in the axial direction, the bottom end of the inner hook ring (20) is set as an inner buckle ring, the conical bottom of the grinding member (6) is provided with a stepped groove, and an annular cavity is formed between the stepped groove and the inner buckle ring at the bottom end of the inner hook ring (20), and the oil-absorbing cotton (21) is installed in the annular cavity.

5. The grinding and extracting machine for preparing the pure natural Yaoyu powder according to claim 4, characterized in that: An air outlet (18) is provided at the center of the grinding member (6), and the top outlet of the air outlet (18) passes through the top of the first speed change cam (4). A plurality of air distribution channels (19) are provided in an annular arrangement inside the grinding member (6) near the bottom conical surface, and the air distribution channels (19) are connected to the air outlet (18). An air intake channel (17) connected to an external air intake device is provided inside the fixed vertical frame (16), and the air intake channel (17) can be intermittently connected to the air distribution channels (19).

6. The grinding and extracting machine for preparing the pure natural Yaoyu powder according to claim 5, characterized in that: A flared groove is provided at the top entrance of the air inlet passage (17), and a fan blade (15) is coaxially fixed to the mounting shaft (10). When the friction wheel (11) contacts the large-diameter conical surface of the first speed-changing cam (4) and the small-diameter conical surface of the second speed-changing cam (12), the fan blade (15) faces the flared groove of the air inlet passage (17).

7. The grinding and extracting machine for preparing the pure natural Yaoyu powder according to claim 5, characterized in that: A temperature sensor is installed in each of the gas distribution channels (19).

8. The grinding and extracting machine for preparing the pure natural Yaoyu powder according to any one of claims 1 to 7, characterized in that: A material dropping cavity is provided at the bottom of the grinding barrel (1), and the material dropping cavity is connected to the inner conical surface of the grinding barrel (1) via a material dropping channel (7), and a filter screen (8) is installed in the material dropping channel (7).

9. The grinding and extracting machine for preparing the pure natural Yaoyu powder according to claim 8, characterized in that: A detachably mounted material storage bin (9) is installed in the blanking cavity, and a pressure sensor is provided in the material storage bin (9).

10. A grinding method of a grinding and extracting machine for preparing the pure natural ingredient Yaoyu powder according to any one of claims 1 to 7, characterized in that: The following steps are involved: S1, placing the Chinese herbal medicine after preliminary crushing into the gap between the grinding piece (6) and the grinding barrel (1), so that it enters the grinding gap between the grinding piece (6) and the grinding barrel (1); S2, the driving unit starts to drive the grinding member (6) to rotate so that it cooperates with the conical surface at the bottom of the grinding barrel (1) to grind it, and when a normal grinding gap is maintained between the grinding member (6) and the conical surface at the bottom of the grinding barrel (1), the driving unit puts the grinding member (6) in a low-speed grinding state so that the grinding rate is maintained while reducing the heat generated by grinding through low-speed grinding; S3, when an oil film is formed on the conical surface of the grinding element (6), the grinding gap between the grinding element (6) and the bottom conical surface of the grinding barrel (1) is increased, and at the same time, the driving unit switches the grinding element (6) to a high-speed centrifugal state to first throw off the powder particles adhering to the bottom conical surface; S4, the driving unit then causes the grinding element (6) to continue to rotate centrifugally at a high speed, so that the oil film on its surface flows along the conical surface from the cone tip to the cone bottom under the action of centrifugal force, presenting a form of being pushed toward the edge, thereby reducing its accumulation in the grinding area; S5. During the process of the oil film rotating and centrifugally flowing toward the edge of the cone bottom, the oil removal part absorbs the centrifugally flowing grease layer, thereby achieving the purpose of cleaning the grease on the conical surface of the grinding member (6). After the cleaning is completed, the normal grinding gap between the grinding member (6) and the conical surface at the bottom of the grinding barrel (1) is restored, and then the above steps S1 and S2 are repeated.

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