A stirring device for uniform mixing and anti-layering of Jichuan decoction granules

Abstract

The application belongs to the technical field of granule mixing, and discloses a Jichuan decoction granule uniform mixing anti-layering stirring device, which comprises a tank body, an outlet valve is fixedly connected to the bottom of the tank body, a fixed plate and a protective shell are respectively fixedly connected to the top of the tank body, a driving motor is fixedly connected to the sidewall of the protective shell, cooperation of the structures such as the annular chute, the snap ring, the round head bump, the inclined plate and the rotating blade is achieved, thereby realizing rapid transverse dispersion of the material and self-adaptive layering inhibition of the material in the stirring process; when the stirring rod rotates, the annular chute drives the snap ring to reciprocate up and down through the round head bump, the inclined plate is swung up and down, the rotating blade at the end of the inclined plate rotates under the resistance of the material, strong transverse shearing and throwing actions are generated, the high-density material at the bottom is forced to be dispersed and thrown upward, and the shearing mixing of the fixed blade is cooperated, so that the mixing efficiency is significantly improved, and the deficiency of slow transfer of the traditional spiral stirring rod is solved.

Description

Technical Field

[0001] This invention belongs to the field of particle mixing technology, specifically a stirring device for uniform mixing and preventing stratification of Jichuan decoction particles. Background Technology

[0002] Jichuan Decoction Granules are a modern Chinese medicine granule preparation based on the traditional Chinese medicine formula "Jichuan Decoction". Jichuan Decoction originated from Zhang Jingyue's "Jingyue Quanshu" in the Ming Dynasty. It has the effects of warming the kidneys and replenishing essence, moistening the intestines and relieving constipation. It is mainly used to treat constipation due to kidney deficiency in the elderly, habitual constipation and other symptoms. Its core ingredients include Cistanche deserticola, Angelica sinensis, Achyranthes bidentata, Alisma plantago-aquatica, Citrus aurantium, and Cimicifuga foetida. During the production process, a stirring device is used to achieve uniform mixing and prevent stratification of Jichuan Decoction Granules. This prevents stratification or segregation due to differences in density and particle size, and ensures the uniformity of content and quality stability of the final product.

[0003] A pre-existing anti-stratification casting powder mixer, disclosed in document CN215428352U, includes a mixer body comprising a cylinder, a stirring rod, a feed pipe, and a frame. The stirring rod is rotatably mounted on the side wall of the frame, and the side wall of the cylinder is rotatably connected to the stirring rod. The stirring rod passes through the feed pipe, and the side wall of the cylinder is rotatably connected to the outer wall of the feed pipe. A storage box is located above the feed pipe, and the inside of the storage box is fixedly equipped with a set of partitions, dividing it into multiple storage chambers. A discharge hopper is fixedly connected to the lower side wall of each storage chamber, and a mixing hopper is fixedly connected to the lower ends of the multiple discharge hoppers. This invention can pre-mix and feed multiple raw materials, preventing stratification, improving the uniformity and efficiency of mixing, and preventing some raw materials from adhering to the inner wall, resulting in poor mixing and material waste.

[0004] Although the aforementioned patent achieves anti-stratification stirring of casting powder through premixing in multiple storage chambers and scraper anti-sticking, it still has the following shortcomings: First, the device uses a conventional spiral stirring rod, which relies solely on slow axial movement to transfer the high-density material at the bottom to the top, resulting in slow mixing speed and low efficiency, making it difficult to quickly eliminate stratification caused by density differences; Second, there is a lack of monitoring and adjustment of material temperature during the stirring process. For materials containing heat-sensitive active ingredients, such as volatile oils and phenylethanol glycosides, such as Jichuan decoction granules, the local heat generated by stirring friction can easily lead to degradation of the active ingredients, affecting the efficacy. Summary of the Invention

[0005] The purpose of this invention is to provide a stirring device for uniform mixing and anti-stratification of Jichuan granules that achieves efficient lateral dispersion mixing and temperature adaptive cooling, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a uniform mixing and anti-stratification stirring device for Jichuan decoction granules, comprising a tank, an outlet valve fixedly connected to the bottom of the tank, a fixing plate and a protective shell fixedly connected to the top of the tank, a drive motor fixedly connected to the side wall of the protective shell, and further comprising: A dispersing and stirring mechanism is located on the tank body; an automatic cold air regulating mechanism is connected to the dispersing and stirring mechanism; wherein, the dispersing and stirring mechanism includes a stirring rod rotatably connected to the middle of the tank body, a cold air duct is provided in the middle of the stirring rod, an annular inclined groove is provided at the bottom of the stirring rod, a retaining ring is slidably connected to the outer wall of the stirring rod, and the inner side of the retaining ring slides against the annular inclined groove through a round-headed protrusion.

[0007] Preferably, the dispersing and stirring mechanism further includes a main gear rotatably connected to the inner cavity of the protective shell, and the center of the main gear is fixed to the output end of the drive motor.

[0008] Preferably, a secondary gear meshes with the outer wall of the main gear, and the center of the secondary gear is fixed to the upper end of the stirring rod, and the stirring rod rotates through the top of the protective shell.

[0009] Preferably, the top of the stirring rod is rotatably connected to a rotary joint, the top of the rotary joint is fixedly connected to an air inlet pipe, the outer wall of the air inlet pipe is fixed to a fixed plate, and the air inlet pipe is connected to a cold air duct.

[0010] Preferably, a plurality of fixed blades are fixedly connected to the upper side of the stirring rod, and a bottom scraper is fixedly connected to the bottom of the stirring rod. The edge of the bottom scraper abuts against the inner bottom surface of the tank. A plurality of air outlet nozzles are fixedly connected to the outer wall of the stirring rod, and the opening of each air outlet nozzle faces the surfaces of the fixed blades and the bottom scraper, respectively.

[0011] Preferably, a ring brush is fixedly connected to both the upper and lower sides of the retaining ring, the inner side of the ring brush abuts against the outer wall of the stirring rod, and several inclined plates are fixedly connected at equal intervals to the outer side of the retaining ring. The ends of the inclined plates are slidably connected to a U-shaped frame through a sliding sleeve, and the ends of the U-shaped frame are fixedly connected to the tank body.

[0012] Preferably, the end of the inclined plate is rotatably connected to a pair of rotating blades via a sliding sleeve, and the outer wall of the sliding sleeve is fixed with a side scraper via a support rod, and the outer side of the side scraper abuts against the inner wall of the tank.

[0013] Preferably, the automatic cold air adjustment mechanism includes a valve seat fixed to the outer wall of the stirring rod, the inner cavity of the valve seat is provided with a sliding groove, the inner cavity of the stirring rod is rotatably connected to a valve core, and the end of the valve core is rotatably connected to the sliding groove.

[0014] Preferably, a grooved rod is fixedly connected to the end of the valve core, and a sliding column is slidably connected to the grooved rod through a hole, and a push plate is fixedly connected to the end of the sliding column.

[0015] Preferably, the outer wall of the stirring rod is fixedly connected to a shell, and the inner cavity of the shell is movably connected to a shape memory metal strip. The bottom of the shape memory metal strip is fixedly connected to the stirring rod, the top of the shape memory metal strip passes through the valve seat, and the end is fixedly connected to the bottom of the push plate.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: This invention achieves rapid lateral dispersion and density-adaptive stratification suppression of materials during mixing by using a combination of structures such as an annular chute, retaining ring, round-headed protrusion, inclined plate, and rotating blade. When the stirring rod rotates, the annular chute drives the retaining ring to move up and down through the round-headed protrusion, causing the inclined plate to swing up and down. The rotating blade at the end of the inclined plate rotates under the resistance of the material, generating a strong lateral shearing and scattering effect, forcibly breaking up the high-density material at the bottom and throwing it upwards. Combined with the shearing and mixing of the fixed blade, the mixing efficiency is significantly improved, solving the problem of slow transfer of traditional spiral stirring rods.

[0017] This invention achieves automatic sensing of stirring temperature and stepless adjustment of cold air flow by setting up a combination of structures such as a shape memory metal strip, a push plate, a sliding column, and a grooved rod. When the temperature inside the tank rises due to stirring friction, the shape memory metal strip expands and elongates due to heat. This expansion and elongation drives the grooved rod to rotate through the push plate and sliding column, causing the valve core to rotate and increasing the opening of the cold air duct. This increases the cold air flow to cool the material and stirring components. After the temperature drops, the shape memory metal strip contracts and returns to its original position, reducing the opening. This achieves adaptive temperature control and cooling during the stirring process, effectively protecting the heat-sensitive pharmaceutical components from degradation.

[0018] This invention achieves all-round automatic cleaning and anti-sticking of the stirring rod, inner wall of the tank, and stirring blades by setting up a ring brush, side scraper, and air outlet nozzle. When the retaining ring moves up and down, it drives the ring brush to continuously clean the material adhering to the outer wall of the stirring rod. When the inclined plate swings, it drives the side scraper to move up and down through the support rod to scrape off the material adhering to the inner side wall of the tank. The cold air sprayed from the air outlet nozzle blows the surface of the fixed blade and the bottom scraper at the same time, forming an air film to assist in anti-sticking. The linkage design ensures that the material does not accumulate or clump during the mixing process, improves the mixing uniformity, and reduces raw material waste. Attached Figure Description

[0019] Figure 1 This is a three-dimensional cross-sectional view of the present invention; Figure 2 This is a schematic diagram showing the structural fit between the rotary joint and the air inlet pipe of the present invention; Figure 3 This is a schematic diagram showing the structural fit between the valve seat and the stirring rod of the present invention; Figure 4 For the present invention Figure 3 A magnified view of the structure at point A in the middle; Figure 5 For the present invention Figure 3 A magnified schematic diagram of the structure at point B in the middle; Figure 6 This is a schematic diagram showing the structural fit between the annular groove and the stirring rod of the present invention; Figure 7 For the present invention Figure 6 A magnified schematic diagram of the structure at point C in the middle; Figure 8 This is a schematic diagram showing the structural fit between the valve core and the grooved rod of the present invention; Figure 9 This is a schematic diagram showing the structural fit between the groove rod and the valve core of the present invention; Figure 10 This is a schematic diagram showing the structural fit between the groove rod and the sliding rod of the present invention.

[0020] In the picture: 100. Tank body; 200. Outlet valve; 300. Drive motor; 400. Fixing plate; 500. Protective shell; 600. Dispersion and stirring mechanism; 610. Rotary joint; 620. Air inlet pipe; 630. Main gear; 640. Secondary gear; 650. Stirring rod; 660. Cold air duct; 670. Air outlet nozzle; 680. Fixed blade; 690. Rotating blade; 6100. Support rod; 6110 6120 Side scraper; 6130 Inclined plate; 6140 Snap ring; 6150 Bottom scraper; 6160 Round head protrusion; 6170 Annular inclined groove; 6180 U-shaped frame; 700 Ring brush; 710 Automatic cold air adjustment mechanism; 720 Valve seat; 730 Valve core; 740 Memory metal strip; 750 Push plate; 760 Groove rod; 770 Housing; 780 Sliding column; 790 Sliding groove. Detailed Implementation

[0021] 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 skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] like Figures 1 to 10 As shown, the present invention provides a uniform mixing and anti-stratification stirring device for Jichuan decoction granules, including a tank 100, an outlet valve 200 fixedly connected to the bottom of the tank 100, a fixing plate 400 and a protective shell 500 fixedly connected to the top of the tank 100, and a drive motor 300 fixedly connected to the side wall of the protective shell 500. The device also includes: A dispersing and stirring mechanism 600 is located on the tank body 100; an automatic cold air regulating mechanism 700 is connected to the dispersing and stirring mechanism 600; wherein, the dispersing and stirring mechanism 600 includes a stirring rod 650 rotatably connected to the middle of the tank body 100, a cold air duct 660 is provided in the middle of the stirring rod 650, an annular inclined groove 6160 is provided at the bottom of the stirring rod 650, and a retaining ring 6130 is slidably connected to the outer wall of the stirring rod 650, and the inner side of the retaining ring 6130 slides against the annular inclined groove 6160 through a round-headed protrusion 6150.

[0023] The above scheme is adopted: the tank body 100 serves as the supporting base, with an outlet valve 200 fixedly connected to the bottom of the tank body 100 to facilitate material discharge, and a fixing plate 400 and a protective shell 500 fixedly connected to the top for support and protection. A drive motor 300 is fixedly connected to the side wall of the protective shell 500 to provide power for the overall operation. The device mainly consists of a dispersing and stirring mechanism 600 and a cold air automatic adjustment mechanism 700, which are interconnected to achieve coordinated operation. The dispersing and stirring mechanism 600 is rotatably connected to a stirring rod 650 in the middle of the tank body 100 as its core component. A cold air pipe 660 is opened in the middle of the stirring rod 650 to transport cooling gas, and an annular inclined groove 6160 is opened at the bottom for transmission. The moving guide structure has a retaining ring 6130 that slides on the outer wall of the stirring rod 650. The inner side of the retaining ring 6130 slides against the annular groove 6160 through a round-headed protrusion 6150. This allows the rotational movement of the stirring rod 650 to be converted into the axial sliding of the retaining ring 6130 along the outer wall of the stirring rod 650 through the cooperation of the annular groove 6160 and the round-headed protrusion 6150. All components are positioned and installed by relying on the tank body 100. The drive motor 300 provides rotational driving force for the stirring rod 650. The cold air duct 660 cooperates with the cold air automatic adjustment mechanism 700 to achieve temperature control. The retaining ring 6130, the round-headed protrusion 6150 and the annular groove 6160 form a mechanical transmission pair, which together complete the integrated cooperation of stirring, transmission and cooling.

[0024] like Figures 3 to 7As shown, the dispersing and stirring mechanism 600 also includes a main gear 630 rotatably connected to the inner cavity of the protective shell 500, with the center of the main gear 630 fixedly connected to the output end of the drive motor 300; a secondary gear 640 meshes with the outer wall of the main gear 630, with the center of the secondary gear 640 fixedly connected to the upper end of the stirring rod 650, and the stirring rod 650 rotatably passes through the top of the protective shell 500; a rotary joint 610 is rotatably connected to the top of the stirring rod 650, and an air inlet pipe 620 is fixedly connected to the top of the rotary joint 610, with the outer wall of the air inlet pipe 620 fixedly connected to the fixed plate 400, and the air inlet pipe 620 is interconnected with the cold air pipe 660; multiple fixed blades 680 are fixedly connected to the upper side of the stirring rod 650, and a bottom scraper 6140 is fixedly connected to the bottom of the stirring rod 650, with the edge of the bottom scraper 6140 abutting against the tank body. On the bottom inner surface of tank 100, the outer wall of stirring rod 650 is fixedly connected to several air outlet nozzles 670, the opening of each air outlet nozzle 670 facing the surface of fixed blade 680 and bottom scraper 6140 respectively; ring brushes 6180 are fixedly connected to both the upper and lower sides of retaining ring 6130, the inner side of ring brushes 6180 abuts against the outer wall of stirring rod 650, and several inclined plates 6120 are fixedly connected at equal intervals to the outer side of retaining ring 6130. The ends of inclined plates 6120 are all slidably connected to U-shaped frames 6170 through sliding sleeves, and the ends of U-shaped frames 6170 are all fixedly connected to tank 100; the ends of inclined plates 6120 are rotatably connected to a pair of rotating blades 690 through sliding sleeves, and the outer wall of sliding sleeves is fixedly connected to side scrapers 6110 through support rods 6100, and the outer side of side scrapers 6110 abuts against the inner side wall of tank 100.

[0025] The above scheme employs the following method: the fixed blade 680 on the upper side of the stirring rod 650 rotates synchronously with the rod, generating strong shearing and dispersing forces that precisely act on the low-density, light materials in the upper part of the tank 100, quickly breaking up material agglomeration and achieving initial dispersion and uniform mixing. The bottom scraper 6140 at the bottom of the stirring rod 650 rotates closely with the rod, always adhering to the inner wall of the bottom of the tank 100, continuously scraping away the deposited high-density, heavy materials, completely eliminating the problem of bottom accumulation and stratification of Chinese medicine components due to density differences, and ensuring that the bottom materials participate in full mixing. During the continuous rotation of the stirring rod 650, the annular groove 6160 at its bottom performs a circular motion synchronously. The round-headed protrusion 6150 on the inner side of the retaining ring 6130 always slides against the inside of the annular groove 6160. Relying on the inclined annular trajectory design of the annular groove 6160, the rotating stirring rod 650 continuously pushes the round-headed protrusion 6150, causing the retaining ring 6130 to perform a stable up-and-down reciprocating motion along the axis of the stirring rod 650. Multiple inclined plates 6120, equidistantly fixed to the outer side of the retaining ring 6130, have their ends slidably connected to a U-shaped frame 6170 fixed to the inner wall of the tank 100 via sliding sleeves. Driven by the retaining ring 6130, the inclined plates 6120 oscillate up and down in a regular pattern. A pair of rotating blades 690, rotatably connected to the ends of the inclined plates 6120 via sliding sleeves, rotate at high speed due to the resistance of material flow while oscillating with the inclined plates 6120, creating a combined effect of high-intensity lateral shearing and powerful scattering on the material in the middle of the tank 100. The cooling system is activated synchronously throughout the mixing operation. Compressed air or nitrogen is continuously supplied to the cold air duct 660 in the middle of the mixing rod 650 through the air inlet pipe 620 and the rotary joint 610. The cooling gas descends along the cold air duct 660 and is directionally sprayed out through multiple air outlet nozzles 670 fixedly connected to the outer wall of the mixing rod 650. The openings of each air outlet nozzle 670 are precisely oriented towards the surface of the fixed blade 680 and the bottom scraper 6140. The cold air forms a uniform and continuous cooling film on the surface of the stirring components, blocking the heat transfer generated by stirring friction. At the same time, it quickly dissipates into the gaps between materials, achieving constant temperature cooling of the entire material. This precisely avoids the degradation and inactivation of heat-sensitive medicinal components such as volatile oils and phenylethanol glycosides in Jichuan Decoction Granules due to high temperatures, thus preserving the efficacy of traditional Chinese medicine preparations to the greatest extent.

[0026] like Figure 4 , Figures 8 to 10As shown, the automatic cold air adjustment mechanism 700 includes a valve seat 710 fixed to the outer wall of the stirring rod 650. The inner cavity of the valve seat 710 is provided with a sliding groove 780. The inner cavity of the stirring rod 650 is rotatably connected to a valve core 720, and the end of the valve core 720 is rotatably connected to the sliding groove 780. The end of the valve core 720 is fixedly connected to a groove rod 750, and the groove rod 750 is slidably connected to a sliding column 770 through a hole groove. The end of the sliding column 770 is fixedly connected to a push plate 740. The outer wall of the stirring rod 650 is fixedly connected to a housing 760. The inner cavity of the housing 760 is movably connected to a shape memory metal strip 730. The bottom of the shape memory metal strip 730 is fixedly connected to the stirring rod 650, the top of the shape memory metal strip 730 passes through the valve seat 710, and the end is fixedly connected to the bottom of the push plate 740.

[0027] The above scheme is adopted as follows: When the internal temperature of the tank 100 rises due to stirring friction, the shape memory metal strip 730 fixed to the outer wall of the stirring rod 650 expands precisely upon heating, pushing the push plate 740 fixed at the top to move. The push plate 740 then drives the sliding column 770 to slide in the slot of the groove rod 750, causing the groove rod 750 to rotate in a specific direction. The valve core 720 fixed to the end of the groove rod 750 is rotatably connected to the sliding groove 780 of the valve seat 710 and communicates with the cold air duct 660. The rotation of the groove rod 750 drives the valve core 720 to rotate synchronously, increasing the opening of the cold air duct 660, increasing the cold air flow, and enhancing the cooling effect. When the internal temperature of the tank 100 drops back to a safe range, the shape memory metal strip 730 automatically retracts and resets, driving the valve core 720 to rotate, reducing the duct opening, and decreasing the cold air flow. The ring brushes 6180, fixed to the upper and lower sides of the retaining ring 6130, always keep in close contact with the outer wall of the stirring rod 650. As the retaining ring 6130 moves up and down, it automatically cleans the material adhering to the surface of the rod, preventing the material from accumulating and clumping. The side scraper 6110, fixed to the end of the inclined plate 6120 through the support rod 6100, moves up and down with the swing of the inclined plate 6120, continuously scraping off the material adhering to the inner side wall of the tank 100, eliminating the problem of uneven mixing and raw material waste caused by long-term material adhesion. The cold air sprayed from the air outlet nozzle 670 simultaneously blows the surface of the fixed blade 680 and the bottom scraper 6140, further enhancing the anti-sticking effect.

[0028] Working principle and usage process of this invention: First, close the outlet valve 200 and add the raw materials of Jichuan decoction granules into the tank 100 according to the specified ratio. Start the drive motor 300. The output end of the drive motor 300 drives the main gear 630 to rotate. The main gear 630 meshes with and drives the secondary gear 640 to rotate. The secondary gear 640 drives the stirring rod 650, which is fixed to it, to rotate in the middle of the tank 100. The fixed blade 680 on the upper side of the stirring rod 650 rotates with the rod, shearing, dispersing and mixing the low-density material in the upper part of the tank 100. The bottom scraper 6140 at the bottom of the stirring rod 650 rotates with the rod, continuously scraping off the material deposited at the bottom of the tank 100 to prevent the high-density components from accumulating at the bottom.

[0029] Secondly, as the stirring rod 650 rotates, the annular groove 6160 at its bottom also rotates. The round-headed protrusion 6150 on the inner side of the retaining ring 6130 slides against the annular groove 6160. Since the trajectory of the annular groove 6160 is inclined and circular, when the stirring rod 650 rotates, the round-headed protrusion 6150 is driven by the groove, causing the retaining ring 6130 to reciprocate up and down along the axis of the stirring rod 650. Multiple inclined plates 6120 are fixedly fixed at equal intervals on the outer side of the retaining ring 6130. The ends of the inclined plates 6120 are slidably connected to the U-shaped frame 6170 through a sliding sleeve. The U-shaped frame 6170 is fixed to the inner wall of the tank 100. Therefore, the inclined plates 6120 swing up and down under the action of the retaining ring 6130. A pair of rotating blades 690 are rotatably connected to the end of the inclined plate 6120 via a sliding sleeve. While oscillating with the inclined plate 6120, the rotating blades 690 rotate due to material resistance, generating a strong lateral shearing and scattering effect on the material in the middle of the tank 100. This structure forcibly disperses the material in the high-density zone at the bottom laterally and throws it upwards. Combined with the stirring of the fixed blades 680, it achieves stratification suppression of density differences in the vertical direction, significantly improving mixing efficiency and overcoming the shortcomings of the traditional spiral stirring rod 650, which only slowly transfers material upwards.

[0030] Secondly, during the mixing process, cooling gas, such as compressed air or nitrogen, is introduced into the cold air duct 660 in the middle of the mixing rod 650 through the air inlet pipe 620 and the rotary joint 610. The cooling gas descends through the cold air duct 660 and is ejected from multiple air outlet nozzles 670 fixedly connected to the outer wall of the mixing rod 650. The opening of each air outlet nozzle 670 faces the surfaces of the fixed blade 680 and the bottom scraper 6140, respectively. The cold air forms a cooling film on the surfaces of the fixed blade 680 and the bottom scraper 6140, and simultaneously dissipates into the material, thereby cooling the material as a whole and effectively preventing the degradation of heat-sensitive pharmaceutical components, such as volatile oils and phenylethanol glycosides, caused by heat generated by stirring friction.

[0031] Meanwhile, the automatic cold air regulating mechanism 700 adjusts the cold air flow rate in real time according to the stirring temperature. When the internal temperature of the tank 100 rises due to stirring friction, the shape memory metal strip 730 fixed to the outer wall of the stirring rod 650 expands and elongates due to heat. A push plate 740 is fixed to the top of the shape memory metal strip 730, which pushes the sliding column 770 to slide in the slot of the groove rod 750, causing the groove rod 750 to rotate. A valve core 720 is fixed to the end of the groove rod 750, which is rotatably connected to the sliding groove 780 of the valve seat 710 and communicates with the cold air duct 660. The rotation of the groove rod 750 drives the valve core 720 to rotate, increasing the opening of the cold air duct 660 and increasing the cold air flow rate. When the temperature drops to the normal range, the shape memory metal strip 730 contracts and resets, the valve core 720 rotates, and the opening decreases. This structure realizes fully automatic stepless adjustment of the cold air flow rate without the need for external sensors and electrical control, and is highly responsive and reliable.

[0032] Specifically, during the mixing process, the ring brushes 6180 fixed to the upper and lower sides of the retaining ring 6130 always abut against the outer wall of the mixing rod 650, automatically cleaning the material adhering to the surface of the mixing rod 650 during its reciprocating motion, preventing material accumulation and clumping. Simultaneously, the side scraper 6110, fixed to the end of the inclined plate 6120 via the support rod 6100, moves up and down with the swing of the inclined plate 6120, continuously scraping off the material adhering to the inner wall of the tank 100, avoiding uneven mixing and waste caused by long-term material adhesion. The cold air sprayed from the exhaust nozzle 670 simultaneously sweeps the surfaces of the fixed blade 680 and the bottom scraper 6140, further assisting in preventing sticking.

[0033] Finally, once the mixing reaches the required level, the drive motor 300 is turned off, stirring is stopped, and the cold air is shut off. The outlet valve 200 is opened, and the uniformly mixed Jichuan Decoction granules are discharged from the bottom of the tank 100. The entire workflow achieves efficient lateral dispersion and mixing of materials, density-adaptive stratification suppression, automatic monitoring of stirring temperature and adjustment of cooling flow rate, and comprehensive wall scraping and anti-sticking functions through the pure mechanical linkage between the dispersion and stirring mechanism 600 and the automatic cold air adjustment mechanism 700. Compared with traditional stirring devices, this invention has a simple structure, requires no additional sensors or complex electrical control, and is particularly suitable for the uniform mixing and anti-stratification production of multi-component, heat-sensitive traditional Chinese medicine preparations such as Jichuan Decoction granules, significantly improving mixing uniformity and retention rate of active ingredients.

[0034] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0035] 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 uniform mixing and anti-segregation stirring device for Jichuan decoction granules, comprising a tank (100), an outlet valve (200) fixedly connected to the bottom of the tank (100), a fixing plate (400) and a protective shell (500) fixedly connected to the top of the tank (100), and a drive motor (300) fixedly connected to the side wall of the protective shell (500), characterized in that: Also includes: A dispersing and stirring mechanism (600) is located on the tank (100); A cold air automatic adjustment mechanism (700) is connected to a dispersion and stirring mechanism (600); wherein, the dispersion and stirring mechanism (600) includes a stirring rod (650) rotatably connected to the middle of the tank (100), a cold air duct (660) is provided in the middle of the stirring rod (650), an annular inclined groove (6160) is provided at the bottom of the stirring rod (650), and a retaining ring (6130) is slidably connected to the outer wall of the stirring rod (650), and the inner side of the retaining ring (6130) slides against the annular inclined groove (6160) through a round head protrusion (6150).

2. The Jichuan granule uniform mixing and anti-segregation stirring device according to claim 1, characterized in that: The dispersion and stirring mechanism (600) also includes a main gear (630) rotatably connected to the inner cavity of the protective shell (500), and the center of the main gear (630) is fixed to the output end of the drive motor (300).

3. The Jichuan decoction granule uniform mixing and anti-segregation stirring device according to claim 2, characterized in that: The outer wall of the main gear (630) is meshed with a secondary gear (640), the center of which is fixed to the upper end of the stirring rod (650), and the stirring rod (650) rotates through the top of the protective shell (500).

4. The Jichuan decoction granule uniform mixing and anti-segregation stirring device according to claim 3, characterized in that: The top of the stirring rod (650) is rotatably connected to a rotary joint (610), and the top of the rotary joint (610) is fixedly connected to an air inlet pipe (620). The outer wall of the air inlet pipe (620) is fixed to a fixed plate (400), and the air inlet pipe (620) is connected to the cold air pipe (660).

5. The Jichuan decoction granule uniform mixing and anti-segregation stirring device according to claim 4, characterized in that: The upper side of the stirring rod (650) is fixed with a plurality of fixed blades (680), and the bottom of the stirring rod (650) is fixed with a bottom scraper (6140). The edge of the bottom scraper (6140) abuts against the bottom inner surface of the tank (100). The outer wall of the stirring rod (650) is fixedly connected with a plurality of air outlet nozzles (670), and the opening of each air outlet nozzle (670) faces the surfaces of the fixed blades (680) and the bottom scraper (6140) respectively.

6. The Jichuan decoction granule uniform mixing and anti-segregation stirring device according to claim 5, characterized in that: The retaining ring (6130) has ring brushes (6180) fixedly connected to both the upper and lower sides. The inner side of the ring brushes (6180) abuts against the outer wall of the stirring rod (650). Several inclined plates (6120) are fixedly connected at equal intervals to the outer side of the retaining ring (6130). The ends of the inclined plates (6120) are all slidably connected to U-shaped frames (6170) through sliding sleeves. The ends of the U-shaped frames (6170) are all fixedly connected to the tank body (100).

7. The Jichuan decoction granule uniform mixing and anti-segregation stirring device according to claim 6, characterized in that: The end of the inclined plate (6120) is rotatably connected to a pair of rotating blades (690) via a sliding sleeve, and the outer wall of the sliding sleeve is fixed with a side scraper (6110) via a support rod (6100). The outer side of the side scraper (6110) abuts against the inner wall of the tank body (100).

8. The Jichuan decoction granule uniform mixing and anti-segregation stirring device according to claim 1, characterized in that: The automatic cold air adjustment mechanism (700) includes a valve seat (710) fixed to the outer wall of the stirring rod (650). The inner cavity of the valve seat (710) is provided with a sliding groove (780). The inner cavity of the stirring rod (650) is rotatably connected to a valve core (720). The end of the valve core (720) is rotatably connected to the sliding groove (780).

9. The Jichuan granule uniform mixing and anti-segregation stirring device according to claim 8, characterized in that: The valve core (720) has a grooved rod (750) fixedly connected to its end. The grooved rod (750) is slidably connected to a sliding column (770) through a slot. The end of the sliding column (770) is fixedly connected to a push plate (740).

10. The Jichuan decoction granule uniform mixing and anti-segregation stirring device according to claim 9, characterized in that: The outer wall of the stirring rod (650) is fixedly connected to a shell (760), and the inner cavity of the shell (760) is movably connected to a memory metal strip (730). The bottom of the memory metal strip (730) is fixedly connected to the stirring rod (650), the top of the memory metal strip (730) passes through the valve seat (710), and the end is fixedly connected to the bottom of the push plate (740).

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