A kind of grinding extraction machine and method for preparing pure natural ingredient Yao bath powder

Abstract

This invention relates to the field of Yao bath powder processing and preparation technology, and discloses a grinding and extraction machine and method for preparing pure natural Yao bath powder. The machine includes a grinding barrel, and further includes: a grinding element rotatably installed inside the grinding barrel, the bottom end of which is an inverted conical grinding section; a matching conical surface is provided at the inner bottom of the grinding barrel, and a grinding gap is provided between the conical surface and the grinding section of the grinding element; and a driving unit for driving the grinding element to rotate, wherein the grinding element has two rotational speeds: high speed and low speed. This invention, by switching the grinding element back and forth between a low-speed grinding state and a high-speed centrifugal state, and by adjusting the grinding gap between the grinding element and the conical surface inside the grinding barrel, can achieve the effect of cleaning the grease adhering to the surface of the grinding element, thus avoiding excessive grease retention that reduces the grinding force, and also preventing grease from adhering to the powder particles and causing adhesion, further improving the grinding quality.

Description

Technical Field

[0001] This invention relates to the field of Yao bath powder processing and preparation technology, specifically to a grinding and extraction machine and method for preparing pure natural Yao bath powder. Background Technology

[0002] Yao bath powder is a product made using traditional Yao ethnic medicinal bath formulas. Its main functions include relieving fatigue, promoting metabolism, aiding weight loss, assisting in the treatment of diseases, and improving skin condition. The method of use is to soak it in warm water, and through the heat effect of the water and the effects of the herbal ingredients, the above-mentioned health benefits are achieved.

[0003] The raw materials used in the preparation of Yao bath powder are harvested from the birthplace of Yao bath. The powder is made through processes such as selection, washing, drying, chopping, grinding, sieving and packaging. Among these processes, the grinding step is the key to the preparation of Yao bath powder. It is necessary to ensure that the herbs are fully ground in order to better release their medicinal effects. Therefore, the grinding quality of the Chinese herbs is of utmost importance.

[0004] Currently, regarding grinding equipment for traditional Chinese medicine, Chinese Patent Publication No. CN118060004B discloses a preparation equipment and method for a traditional Chinese medicine composition for treating jaundice. This preparation equipment controls the temperature of the grinding gap to avoid excessively high temperatures causing the sugar-containing medicinal materials to stick together due to sugar dissolution, thus ensuring the stability and quality of the medicinal materials during the grinding process.

[0005] However, during the grinding process of the Chinese herbal medicines contained in the Yao bath powder, some of the herbs release oils, such as mugwort, angelica, ephedra, or chicken blood vine. These secreted oils will coat the grinding head and form an oil film. The presence 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, resulting in adhesion and reducing the grinding quality. Summary of the Invention

[0006] The purpose of this invention is to provide a grinding and extraction machine and method for preparing pure natural ingredient Yao bath powder, so as to solve at least one technical problem existing in the prior art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a grinding and extraction machine for preparing pure natural ingredient Yao bath powder, comprising a grinding barrel, and further comprising:

[0008] The grinding component is rotated and installed inside the grinding barrel. The bottom end of the grinding component is an inverted conical grinding part. The bottom of the grinding barrel is provided with a matching conical surface, and a grinding gap is provided between the conical surface and the grinding part of the grinding component.

[0009] The drive unit is used to drive the grinding workpiece to rotate. The grinding workpiece has two rotation speed states: high speed and low speed. When the grinding workpiece and the bottom conical surface of the grinding barrel maintain a normal grinding gap, the drive unit puts the grinding workpiece in a low-speed grinding state. When the grinding gap between the grinding workpiece and the bottom conical surface of the grinding barrel increases, the drive unit switches the grinding workpiece to a high-speed centrifugal state.

[0010] The degreasing section is located at the bottom of the cone at the bottom of the grinding part, and adsorbs the grease layer flowing centrifugally when the grinding part switches to high-speed centrifugal state.

[0011] Preferably, the drive unit includes a connecting shaft integrally formed with the grinding part, and a first speed-changing cam is fixed at the top of the connecting shaft. The outer wall of the first speed-changing cam is provided with an arc surface that gradually changes the diameter of the first speed-changing cam. A fixed bracket is fixed on the inner wall of the grinding barrel. The connecting shaft is installed in a hole opened in the center of the fixed bracket, and the connecting shaft can rotate and slide in the hole. A first spring is provided between the first speed-changing cam and the fixed bracket.

[0012] A spline shaft is rotatably mounted on the side wall of the grinding barrel, and a second speed-changing cam is fixed at 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 provided between the second speed-changing cam and the inner wall of the grinding barrel. A motor for driving the spline shaft to rotate is installed on the outer wall of the grinding barrel.

[0013] The drive unit also includes a friction wheel installed between the first shift cam and the second shift cam. The friction wheel drives the transmission through friction with the conical surfaces of the first shift cam and the second shift cam. The friction wheel can rotate to adjust its contact position with the conical surfaces of the first shift cam and the second shift cam.

[0014] Preferably, an adjusting shaft is rotatably mounted 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 mounted in the connecting frame through the mounting shaft. A gear is fixed at one end of the adjusting shaft that extends out of the outer wall of the grinding barrel, and the gear is adjusted by rotation through an external structure.

[0015] Preferably, the degreasing part includes oil-absorbing cotton, the bottom of the fixed bracket is fixedly connected to a fixed ring by a fixed vertical frame, and an inner hook ring is rotatably installed on the inner ring of the fixed 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. A stepped groove is opened at the conical bottom of the grinding part, and an annular cavity is formed between the stepped groove and the inner buckle ring at the bottom end of the inner hook ring. The oil-absorbing cotton is installed in the annular cavity.

[0016] Preferably, the grinding part has an air outlet at its center, and the top outlet of the air outlet passes through the top of the first transmission cam. The grinding part has multiple air distribution channels arranged in a ring near the bottom conical surface, and the air distribution channels are connected to the air outlet. The fixed vertical frame has an air intake channel connected to an external air intake device, and the air intake channel can be intermittently connected to the air distribution channels.

[0017] Preferably, the top inlet of the air intake channel is provided with a flared groove, and the fan blade is coaxially fixed on the mounting shaft. When the friction wheel contacts the large-diameter conical surface of the first transmission cam and the small-diameter conical surface of the second transmission cam, the fan blade faces the flared groove of the air intake channel.

[0018] Preferably, a temperature sensor is installed in each of the gas distribution channels.

[0019] Preferably, the bottom of the grinding barrel is provided with a material discharge chamber, and the material discharge chamber is connected to the inner conical surface of the grinding barrel through a material discharge channel, and a filter screen is installed in the material discharge channel.

[0020] Preferably, a detachable storage bin is installed inside the material discharge chamber, and a pressure sensor is provided inside the storage bin.

[0021] A grinding method for preparing Yao bath powder, a pure natural ingredient, includes the following steps:

[0022] S1. Place the pre-crushed Chinese herbal medicines into the gap between the grinding pieces and the grinding barrel, so that they enter the grinding gap between the grinding pieces and the grinding barrel;

[0023] S2. The drive unit starts to drive the grinding part to rotate, so that it cooperates with the conical surface at the bottom of the grinding barrel to grind it. When the grinding part and the conical surface at the bottom of the grinding barrel maintain a normal grinding gap, the drive unit puts the grinding part in a low-speed grinding state, so as to maintain the grinding rate while reducing the heat generated by grinding through low-speed grinding.

[0024] S3. When an oil film forms on the conical surface of the grinding workpiece, the grinding gap between the grinding workpiece and the bottom conical surface of the grinding barrel increases. At the same time, the drive unit switches the grinding workpiece to a high-speed centrifugal state, first throwing off the powder particles adhering to the bottom conical surface.

[0025] S4. Then the drive unit makes the grinding part continue to rotate at high speed, so that the oil film on its surface flows along the cone surface from the cone tip to the cone bottom under the action of centrifugal force, and presents a form of pushing towards the edge, reducing its accumulation in the grinding area.

[0026] S5. During the process of the oil film rotating and centrifugally flowing towards the bottom edge of the cone, the degreasing section adsorbs the grease layer flowing centrifugally, thereby achieving the purpose of cleaning the grease on the conical surface of the grinding workpiece. After the cleaning is completed, the normal grinding gap between the grinding workpiece and the bottom conical surface of the grinding barrel is restored. Then, the above steps S1 and S2 are repeated.

[0027] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0028] This invention achieves the effect of cleaning grease adhering to the surface of the grinding part by switching between low-speed grinding and high-speed centrifugal state of the grinding part, and by adjusting the grinding gap between the grinding part and the inner conical surface of the grinding barrel. This avoids excessive grease retention, which would reduce the grinding force, and also prevents grease from adhering to the powder particles and causing adhesion, thus further improving the grinding quality. Attached Figure Description

[0029] Figure 1 This is the front view of the present invention;

[0030] Figure 2 For the present invention Figure 1 Sectional view along the middle AA;

[0031] Figure 3 For the present invention Figure 2 A sectional stereoscopic view from a specific perspective;

[0032] Figure 4 For the present invention Figure 2 Enlarged view of point C in the image;

[0033] Figure 5 This is a diagram and a partial view showing the state after relative displacement occurs between the grinding part and the inner hook ring of the present invention;

[0034] Figure 6 This is the left view of the present invention;

[0035] Figure 7 For the present invention Figure 6 A sectional perspective view along the center BB;

[0036] Figure 8 This is a three-dimensional structural diagram of the second variable speed cam of the present invention after symmetrical arrangement;

[0037] Figure 9 For the present invention Figure 8 A sectional perspective view;

[0038] Figure 10 This is a partially sectional exploded perspective view of the grinding part and its structure according to the present invention.

[0039] In the diagram: 1. Grinding barrel; 2. Fixed bracket; 3. Connecting shaft; 4. First speed-changing cam; 5. First spring; 6. Grinding part; 7. Material discharge channel; 8. Filter screen; 9. Storage bin; 10. Mounting shaft; 11. Friction wheel; 12. Second speed-changing cam; 13. Splined 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. Fixed ring. Detailed Implementation

[0040] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0041] Please see Figures 1 to 10 This invention provides a technical solution: a grinding and extraction machine for preparing pure natural ingredient Yao bath powder, including a grinding barrel 1, and further comprising:

[0042] Rotate the grinding part 6 installed in the grinding barrel 1. The bottom end of the grinding part 6 is an inverted conical grinding part. The inner bottom of the grinding barrel 1 is provided with a matching conical surface, and a grinding gap is provided between the conical surface and the grinding part of the grinding part 6.

[0043] The drive unit is used to drive the grinding part 6 to rotate. The grinding part 6 has two rotation speed states: high speed and low speed. When the grinding part 6 maintains a normal grinding gap with the bottom conical surface of the grinding barrel 1, the drive unit puts the grinding part 6 in a low-speed grinding state. When the grinding gap between the grinding part 6 and the bottom conical surface of the grinding barrel 1 increases, the drive unit switches the grinding part 6 to a high-speed centrifugal state.

[0044] The degreasing section is located at the bottom of the cone at the bottom of the grinding part 6, and adsorbs the grease layer flowing centrifugally when the grinding part 6 switches to high-speed centrifugal state.

[0045] In use, the pre-crushed Chinese herbal medicine is placed between the grinding piece 6 and the grinding barrel 1, allowing it to enter the grinding gap between them. The drive unit then rotates the grinding piece 6, causing it to engage with the conical surface at the bottom of the grinding barrel 1 for grinding. 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 drive unit operates the grinding piece 6 at a low speed. This maintains the grinding rate while reducing the heat generated during grinding, thus inhibiting oil secretion. As the amount of oil ground increases, oil gradually adheres to the grinding piece 6, forming an oil film on its conical surface. At this time, the grinding gap between the grinding part 6 and the bottom conical surface of the grinding barrel 1 is increased. At the same time, the drive unit switches the grinding part 6 to a high-speed centrifugal state. First, the powder particles adhering to the bottom conical surface are thrown off. Then, the drive unit makes the grinding part 6 continue to rotate at high speed. Under the action of centrifugal force, the oil film on its surface flows along the conical surface from the tip to the bottom, pushing towards the edge, reducing its accumulation in the grinding area. During this process, the degreasing unit will adsorb the grease layer that flows to the bottom edge of the cone, thereby achieving the purpose of cleaning the grease on the conical surface of the grinding part 6. After cleaning, the normal grinding gap between the grinding part 6 and the bottom conical surface of the grinding barrel 1 is restored. Then, the above grinding steps are repeated.

[0046] In this way, by switching the grinding part 6 back and forth between low-speed grinding and high-speed centrifugal state, and by adjusting the grinding gap between the grinding part 6 and the inner conical surface of the grinding barrel 1, the grease adhering to the surface of the grinding part 6 can be cleaned to avoid excessive grease retention, which would reduce the grinding force. At the same time, it can also prevent grease from adhering to the powder particles and causing adhesion, thus further improving the grinding quality.

[0047] It is worth mentioning that, since the oil secreted during the grinding process of Chinese herbal medicines has a relatively high viscosity, under the centrifugal force of the grinding piece 6, the oil will not be directly thrown away from the grinding piece 6. Instead, it will gradually flow and migrate along the conical surface at the bottom of the grinding piece 6 from the tip to the edge until it comes into contact with the degreasing part and is absorbed by it. At the same time, the bottom taper will also affect the flow of oil. The gentler the angle, the less likely the oil will be thrown away from the grinding piece 6. Adjusting the taper can further prevent the oil from separating directly from the grinding piece 6.

[0048] In one preferred embodiment, an implementation method is provided that drives the grinding member 6 to switch between two states, as detailed in [reference needed]. Figure 2 ;

[0049] The drive unit includes a connecting shaft 3 integrally formed with the grinding part 6, and a first speed-changing cam 4 is fixed at the top of the connecting shaft 3. The outer wall of the first speed-changing cam 4 is provided with an arc surface that makes the diameter of the first speed-changing cam 4 gradually change. A fixed bracket 2 is fixed on the inner wall of the grinding barrel 1. The connecting shaft 3 is installed in a hole opened in the center of the fixed 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 fixed bracket 2.

[0050] A splined shaft 13 is rotatably mounted on the side wall of the grinding barrel 1, and a second speed-changing cam 12 is fixed at the end of the splined 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. A motor for driving the splined shaft 13 to rotate is installed on the outer wall of the grinding barrel 1.

[0051] The drive unit also includes a friction wheel 11 installed between the first shift cam 4 and the second shift cam 12. The friction wheel 11 is driven by friction with the conical surfaces of the first shift cam 4 and the second shift cam 12. The friction wheel 11 can be rotated to adjust its contact position with the conical surfaces of the first shift cam 4 and the second shift cam 12.

[0052] During grinding, the spline shaft 13 and the second speed-changing cam 12 rotate under the drive of an external motor, and drive the first speed-changing cam 4 to rotate under the friction transmission of the friction wheel 11, thereby driving the connecting shaft 3 and the grinding part 6 to rotate together to complete the grinding process.

[0053] In the grinding state, the friction wheel 11 makes frictional contact with the conical surface of the second transmission cam 12 at the smaller diameter position, and with the conical surface of the first transmission cam 4 at the larger diameter position, such as... Figure 2 As shown, by using a small component to drive a large component, the grinding part 6 can maintain a low grinding speed during the grinding process. This ensures the grinding effect while reducing the heat generated during grinding and lowering the temperature during the grinding process, thereby reducing grease secretion and clumping during the grinding process.

[0054] Moreover, it is worth noting that during the grinding process, the friction wheel 11 will apply a certain downward pressure to the first speed-changing cam 4 during the friction transmission, so that the first spring 5 is in a compressed state, and the grinding part 6 also maintains a normal grinding gap with the inner conical surface of the grinding barrel 1.

[0055] When the grease adhering to the conical surface of the grinding part 6 exceeds a preset value and needs to be cleaned, the friction wheel 11 is rotated and adjusted by an external mechanism. This changes the contact position between the friction wheel 11 and the conical surfaces of the first and second gear shift cams 4 and 12, respectively. The friction wheel 11 will then rub against the smaller diameter area of ​​the first gear shift cam 4 and the larger diameter area of ​​the second gear shift cam 12. Figure 2The cam rotates from a near-vertical tilt to a near-horizontal tilt, thereby completing the switch from a large to a small speed by a large speed-driven mechanism, increasing the speed of the first speed-changing cam 4 and the grinding part 6.

[0056] Meanwhile, as the rotation of the friction wheel 11 reduces the downward force on the first gear shift cam 4, the first gear shift cam 4 and the grinding part 6 will move upward under the action of the first spring 5, thereby increasing the grinding gap between the grinding part 6 and the inner conical surface of the grinding barrel 1, providing space for subsequent grease cleaning.

[0057] It is worth mentioning that the arrangement of the second spring 14 and the spline shaft 13 allows the second transmission cam 12 to move and adjust in its axial direction, so that it can cooperate with the rotation of the friction wheel 11 and always maintain a state of frictional contact.

[0058] In this way, the grinding part 6 can be switched between low-speed grinding and high-speed centrifugal state by adjusting the rotation of the friction wheel 11. At the same time, the grinding gap between the grinding part 6 and the inner conical surface of the grinding barrel 1 can be automatically adjusted to provide the appropriate space for grinding and grease cleaning.

[0059] See Figure 8 and Figure 9 The aforementioned second speed-changing cam 12 and friction wheel 11 can be symmetrically arranged, which can make the force on the first speed-changing cam 4 more uniform. The specific additions or subtractions can be made as needed.

[0060] In one preferred embodiment, an implementation method for adjusting the friction wheel 11 is provided, as detailed in [reference needed]. Figure 7 and Figure 8 ;

[0061] An adjusting shaft 22 is rotatably mounted on the inner wall of the grinding barrel 1. A connecting frame 23 is set in the middle of the adjusting shaft 22, and the friction wheel 11 is rotatably mounted in the connecting frame 23 through the mounting shaft 10. A gear 24 is fixed at one end of the adjusting shaft 22 that extends out of the outer wall of the grinding barrel 1, and the gear 24 is adjusted by rotating the external structure.

[0062] By rotating the adjusting gear 24 through an external mechanism, the adjusting shaft 22 can be rotated and adjusted, thereby causing the connecting frame 23 and the friction wheel 11 to also rotate and adjust, thus achieving the purpose of the above-mentioned state switching.

[0063] When the above structure is symmetrically arranged, the gears 24 can also be symmetrically arranged, and the two gears 24 mesh with each other. In this way, by driving one of the gears 24 to rotate, the two gears can be driven to rotate synchronously for adjustment. Specifically, an external motor can be used for driving, or manual adjustment can be used, depending on the situation.

[0064] In one preferred embodiment, an implementation of the degreasing section is provided, as detailed below. Figure 4 and Figure 10 ;

[0065] The degreasing section includes oil-absorbing cotton 21. The bottom of the fixed bracket 2 is fixedly connected to a fixed ring 25 via a fixed vertical bracket 16. An inner hook ring 20 is rotatably installed on the inner ring of the fixed ring 25. The inner hook ring 20 is sleeved on the outer ring of the grinding part 6 and can move relative to the grinding part 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 part 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. The oil-absorbing cotton 21 is installed in the annular cavity.

[0066] As can be seen from the above, when the grinding element 6 switches to high-speed centrifugal mode, the grinding element 6 and the first speed-changing cam 4 will move upward under the action of the first spring 5, thereby causing relative displacement between the grinding element 6 and the inner hook ring 20, exposing the oil-absorbing cotton 21 in the annular cavity. (See above) Figure 5 The oil-absorbing cotton 21 is designed in a ring shape, which will cover the edge of the stepped groove at the bottom of the grinding part 6 cone. In this way, it can absorb the oil that migrates to the edge of the bottom of the cone during the centrifugal rotation of the grinding part 6, so as to achieve the effect of oil removal.

[0067] After the degreasing is completed, when the grinding part 6 switches back to the low-speed grinding state, the relative movement between the grinding part 6 and the inner hook ring 20 will cause the oil-absorbing cotton 21 to retract 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 part 6, thereby improving the degreasing efficiency.

[0068] In this way, the oil-absorbing cotton 21 can be disassembled and replaced periodically.

[0069] In one preferred embodiment, a method for temperature control of the grinding workpiece 6 is provided, as detailed in [reference needed]. Figure 3 and Figure 10 ;

[0070] The grinding part 6 has an air outlet 18 at its center, and the top outlet of the air outlet 18 passes through the top of the first transmission cam 4. The grinding part 6 has multiple air distribution channels 19 arranged in a ring near the bottom conical surface, and the air distribution channels 19 are connected to the air outlet 18. The fixed vertical frame 16 has an air intake channel 17 connected to the external air intake equipment, and the air intake channel 17 can be intermittently connected to the air distribution channels 19.

[0071] As we know from the previous content, lowering the temperature during grinding can inhibit the secretion of grease and prevent sticking. Therefore, when the grinding part 6 is grinding at low speed, air is introduced into the air intake channel 17 through the external air intake device. When the grinding part 6 rotates, it will drive the inner hook ring 20 to rotate, causing it to rotate relative to the fixed ring 25, and intermittently connecting the air intake channel 17 and the air distribution channel 19, so that air can be intermittently introduced into each air distribution channel 19. The introduced air will be discharged through the air outlet 18, carrying away the heat generated by the grinding part 6 during grinding.

[0072] In this way, by intermittently introducing air through the air distribution channel 19, the temperature of each position of the grinding workpiece 6 can be made more uniform and kept within a relatively stable low temperature range, thereby improving the grinding efficiency.

[0073] In one preferred embodiment, an implementation method for introducing air into the air intake channel 17 is provided, as detailed in [reference needed]. Figure 2 and Figure 3 ;

[0074] An flared groove is provided at the top inlet of the air intake channel 17. The 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 transmission cam 4 and the small-diameter conical surface of the second transmission cam 12, the fan blade 15 faces the flared groove of the air intake channel 17.

[0075] As can be seen from the previous content, when the grinding part 6 is in the low-speed grinding state, the friction wheel 11 is in contact with 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 friction wheel 11 is also in an inclined and nearly vertical state. At this time, the fan blade 15 is facing the flared groove of the air intake channel 17. In this way, when the friction wheel 11 rotates, it will drive the fan blade 15 to rotate and blow air into the air intake channel 17 to ensure the flow of heat dissipation airflow and temperature control of the grinding part 6 in the grinding state.

[0076] When the grinding part 6 is switched to high-speed centrifugal mode, the friction wheel 11 will rotate and adjust to a tilted near-horizontal state, so that the direction of the fan blade 15 is away from the flared groove of the air intake channel 17, thereby reducing the air flow. This prevents the grinding part 6 from cooling down in high-speed centrifugal mode, allowing it to be kept at a higher temperature. This facilitates the flow of grease on the bottom conical surface of the grinding part 6, providing a temperature environment for subsequent degreasing.

[0077] Then, when the grinding part 6 switches back to the low-speed grinding state, the fan blade 15 also faces the flared groove of the air intake channel 17 again. In this way, the temperature of the grinding part 6 can be controlled at the same time as the state of the grinding part 6 is switched, so that it can adapt to the use environment under different conditions.

[0078] In one preferred embodiment, a temperature sensor is installed in each air duct 19.

[0079] This embodiment provides an implementation method for monitoring the temperature inside the air distribution channel 19. The temperature difference inside the air distribution channel 19 is detected by a temperature sensor. Since the surface of the grinding part 6 is covered with grease and forms an oil film, it will affect the temperature conduction of the grinding part 6. As a result, the temperature difference inside the air distribution channel 19 will change. By monitoring the internal temperature difference, it can be determined whether there is an oil film on the grinding part 6, which serves as an indirect monitoring purpose for the removal of the oil film.

[0080] In one preferred embodiment, the bottom of the grinding barrel 1 is provided with a material discharge chamber, and the material discharge chamber is connected to the inner conical surface of the grinding barrel 1 through a material discharge channel 7, and a filter screen 8 is installed in the material discharge channel 7.

[0081] In one preferred embodiment, a detachable storage bin 9 is installed inside the material discharge chamber, and a pressure sensor is provided inside the storage bin 9.

[0082] By monitoring the weight of the medicinal materials inside the storage silo 9 using a pressure sensor, the material discharge rate inside the storage silo 9 can be determined, thereby identifying any abnormalities in the grinding process. Based on the data from the pressure sensor, grinding 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 for each batch of medicinal materials can be ensured, improving the stability and reliability of the product.

[0083] A grinding method for preparing Yao bath powder, a pure natural ingredient, includes the following steps:

[0084] S1. Put the pre-crushed Chinese herbal medicine 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.

[0085] S2. The drive unit starts to drive the grinding part 6 to rotate, so that it cooperates with the conical surface at the bottom of the grinding barrel 1 to grind it. When the grinding part 6 and the bottom conical surface of the grinding barrel 1 maintain a normal grinding gap, the drive unit puts the grinding part 6 into a low-speed grinding state, so as to maintain the grinding rate and reduce the heat generated by grinding through low-speed grinding.

[0086] S3. When an oil film forms on the conical surface of the grinding piece 6, the grinding gap between the grinding piece 6 and the bottom conical surface of the grinding barrel 1 increases. At the same time, the drive unit switches the grinding piece 6 to a high-speed centrifugal state, first throwing off the powder particles adhering to the bottom conical surface.

[0087] S4. Then the drive unit makes the grinding part 6 continue to rotate at high speed, so that the oil film on its surface flows along the cone surface from the cone tip to the cone bottom under the action of centrifugal force, and presents a form of pushing towards the edge, reducing its accumulation in the grinding area.

[0088] S5. During the process of the oil film rotating and centrifugally flowing towards the bottom edge of the cone, the degreasing section adsorbs the grease layer flowing centrifugally, thereby achieving the purpose of cleaning the grease on the cone surface of the grinding part 6. After the cleaning is completed, the normal grinding gap between the grinding part 6 and the bottom cone surface of the grinding barrel 1 is restored. Then, the above steps S1 and S2 are repeated.

[0089] The standard parts used in this embodiment can be purchased directly from the market, while the non-standard structural parts described in the specification and drawings can be processed directly based on existing technical knowledge without any doubt. At the same time, the connection methods of each component adopt mature conventional methods in the existing technology, and the machinery, parts and equipment all adopt conventional models in the existing technology, so they will not be described in detail here.

[0090] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A grinding and extraction machine for preparing pure natural ingredient Yao bath powder, comprising a grinding barrel (1), characterized in that, Also includes: Rotate the grinding part (6) installed in the grinding barrel (1). The bottom end of the grinding part (6) is an inverted conical grinding part. The inner bottom of the grinding barrel (1) is provided with a matching conical surface, and a grinding gap is provided between the conical surface and the grinding part of the grinding part (6). The drive unit is used to drive the grinding part (6) to rotate, and the grinding part (6) has two rotation speed states: high speed and low speed. When the grinding part (6) and the bottom conical surface of the grinding barrel (1) maintain a normal grinding gap, the drive unit makes the grinding part (6) in a low-speed grinding state. When the grinding gap between the grinding part (6) and the bottom conical surface of the grinding barrel (1) increases, the drive unit makes the grinding part (6) switch to a high-speed centrifugal state. The degreasing section is located at the bottom of the cone at the bottom of the grinding part (6) and adsorbs the grease layer flowing centrifugally when the grinding part (6) switches to high-speed centrifugal state.

2. The grinding and extraction machine for preparing pure natural ingredient Yao bath powder according to claim 1, characterized in that: The drive unit includes a connecting shaft (3) integrally formed with the grinding part (6), and a first speed-changing cam (4) is fixed at the top of the connecting shaft (3). The outer wall of the first speed-changing cam (4) is provided with an arc surface that makes the diameter of the first speed-changing cam (4) gradually change. A fixed bracket (2) is fixed on the inner wall of the grinding barrel (1). The connecting shaft (3) is installed in a hole opened in the center of the fixed 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 fixed bracket (2). The side wall of the grinding barrel (1) is also rotatably mounted with a spline shaft (13), and the end of the spline shaft (13) is fixed with a second speed-changing cam (12). 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). The outer wall of the grinding barrel (1) is equipped with a motor for driving the spline shaft (13) to rotate. The drive unit also includes a friction wheel (11) installed between the first shift cam (4) and the second shift cam (12). The friction wheel (11) is driven by friction with the conical surfaces of the first shift cam (4) and the second shift cam (12). The friction wheel (11) can be rotated to adjust its contact position with the conical surfaces of the first shift cam (4) and the second shift cam (12).

3. The grinding and extraction machine for preparing pure natural ingredient Yao bath 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 connecting frame (23) is set in the middle of the adjusting shaft (22). The friction wheel (11) is rotatably mounted in the connecting frame (23) through the mounting shaft (10). A gear (24) is fixed at one end of the adjusting shaft (22) that extends out of the outer wall of the grinding barrel (1). The gear (24) is adjusted by rotating through an external structure.

4. The grinding and extraction machine for preparing pure natural ingredient Yao bath powder according to claim 3, characterized in that: The degreasing part includes oil-absorbing cotton (21). The bottom of the fixed bracket (2) is fixedly connected to a fixed ring (25) by a fixed vertical frame (16). An inner hook ring (20) is rotatably installed on the inner ring of the fixed ring (25). The inner hook ring (20) is sleeved on the outer ring of the grinding part (6) and can move relative to the grinding part (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 cone bottom of the grinding part (6). An annular cavity is formed between the stepped groove and the inner buckle ring at the bottom end of the inner hook ring (20). The oil-absorbing cotton (21) is installed in the annular cavity.

5. The grinding and extraction machine for preparing pure natural ingredient Yao bath powder according to claim 4, characterized in that: The grinding part (6) has an air outlet (18) at its center, and the top outlet of the air outlet (18) passes through the top of the first transmission cam (4). The grinding part (6) has multiple air distribution channels (19) arranged in a ring near the bottom conical surface, and the air distribution channels (19) are connected to the air outlet (18). The fixed vertical frame (16) has an air intake channel (17) connected to the external air intake device, and the air intake channel (17) can be intermittently connected to the air distribution channels (19).

6. The grinding and extraction machine for preparing pure natural ingredient Yao bath powder according to claim 5, characterized in that: The top inlet of the air intake channel (17) is provided with a flared groove. The mounting shaft (10) is coaxially fixed with a fan blade (15). 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).

7. The grinding and extraction machine for preparing pure natural ingredient Yao bath powder according to claim 5, characterized in that: A temperature sensor is installed in each of the aforementioned air distribution channels (19).

8. The grinding and extraction machine for preparing pure natural ingredient Yao bath powder according to any one of claims 1-7, characterized in that: The bottom of the grinding barrel (1) is provided with a material discharge chamber, and the material discharge chamber is connected to the inner conical surface of the grinding barrel (1) through a material discharge channel (7), and a filter screen (8) is installed in the material discharge channel (7).

9. The grinding and extraction machine for preparing pure natural ingredient Yao bath powder according to claim 8, characterized in that: The material discharge chamber is equipped with a detachable storage bin (9), and the storage bin (9) is equipped with a pressure sensor.

10. A grinding method for a grinding and extraction machine used in the preparation of pure natural ingredient Yao bath powder according to any one of claims 1-7, characterized in that, Includes the following steps: S1. Put the Chinese herbal medicine that has been initially crushed 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 drive unit starts to drive the grinding part (6) to rotate, so that it cooperates with the conical surface at the bottom of the grinding barrel (1) to grind it. When the grinding part (6) and the conical surface at the bottom of the grinding barrel (1) maintain a normal grinding gap, the drive unit puts the grinding part (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 part (6), the grinding gap between the grinding part (6) and the bottom conical surface of the grinding barrel (1) is increased. At the same time, the driving part switches the grinding part (6) to a high-speed centrifugal state, and first throws off the powder particles adhering to the bottom conical surface. S4. Then the drive unit makes the grinding part (6) continue to rotate at high speed, so that the oil film on its surface flows along the cone surface from the cone tip to the cone bottom under the action of centrifugal force, and presents a form of pushing towards the edge, reducing its accumulation in the grinding area; S5. During the process of the oil film rotating and centrifugally flowing towards the bottom edge of the cone, the degreasing part adsorbs the grease layer flowing centrifugally, thereby achieving the purpose of cleaning the grease on the cone surface of the grinding part (6). After the cleaning is completed, the normal grinding gap between the grinding part (6) and the bottom cone surface of the grinding barrel (1) is restored. Then, the above steps S1 and S2 are repeated.

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