A raw material mixing and distributing mechanism in a solid beverage processing process

Abstract

The application discloses a raw material mixing and distributing mechanism in a solid beverage processing process, and belongs to the technical field of solid beverage processing, which comprises a mixing box, a spiral belt stirring rod, a distributing box, an airflow assisting mixing assembly and a cleaning assembly; a discharging pipe is arranged in a circumferential array at the bottom of the distributing hopper; a PLC control panel is fixedly installed at the front end of the mixing box; the spiral belt stirring rod is rotatably installed in the mixing box; the distributing box is fixedly installed at the lower end of the discharging pipe; a metering turntable is rotatably installed in the distributing box; discharging branch pipes are arranged in a circumferential array at the lower end of the distributing box; a concentric double-ring air pipe and a circumferential oblique air jet nozzle are arranged in the mixing box; the spiral belt stirring rod is cooperated with the air pipe and the air jet nozzle to form a mechanical stirring and airflow fluidization composite mixing mode; the light and heavy stratification problem of the multi-component raw materials of the solid beverage caused by the density and particle size difference can be effectively inhibited; the mixing dead angle at the bottom and the side wall of the cavity can be eliminated; the mixing uniformity can be obviously improved; the mixing time can be shortened; and the production efficiency can be effectively improved.

Description

Technical Field

[0001] This invention specifically relates to a raw material mixing and dispensing mechanism in the solid beverage processing process, belonging to the field of solid beverage processing technology. Background Technology

[0002] With the rapid development of the health food industry, solid beverages have seen continuous market expansion due to their advantages such as portability, ease of preparation, and flexible nutritional formulation. Protein powder, meal replacement powder, fruit-flavored powders, and functional solid beverages have become core categories in the food industry. The core of solid beverage production lies in the uniform mixing and precise quantitative distribution of raw materials. The uniformity of mixing directly determines the product's quality stability and nutritional consistency, while the precision of material distribution directly affects the compliance of the product's net content and production efficiency.

[0003] For example, CN214159205U discloses a mixing and dispensing mechanism for solid beverages, comprising a mixing box and a mixing chamber. The mixing chamber is located inside the mixing box, and dispensing funnels are embedded on both the left and right sides of the bottom of the mixing chamber's inner wall. Dispensing pipes are connected to both the left and right sides of the bottom of the mixing box. The top of the dispensing pipes penetrates the mixing box and extends into its interior, while the bottom of the dispensing pipes is fixedly connected to the bottom of the dispensing funnels. This utility model relates to the field of solid beverage processing technology. This mixing and dispensing mechanism for solid beverages, through a combination of a drive motor, rotating blades, sensors, and a controller, compares the flow rate of the raw material in the dispensing pipes with a rated value using the sensors and controller. After comparison, the drive motor rotates the rotating blades to seal the dispensing pipes, thereby achieving automated control of the raw material flow rate. This combination of structures solves the problem of uncontrollable raw material flow rate in traditional powder dispensing mechanisms.

[0004] For example, announcement number CN210150329U describes a raw material mixing and dispensing mechanism for solid beverages, comprising a mixing chamber and a cover. Bases are fixed to both sides of the bottom of the mixing chamber. A motor is fixed to one side of the mixing chamber via a bracket. A stirring rack is installed inside the mixing chamber, and the stirring rack is connected to the motor via bearings. Graduation lines are printed on the surface of the mixing chamber side near the motor. A feed inlet is opened at the top of the mixing chamber, and a circular cover is placed over the feed inlet. A handle is fixed to the center of the circular cover. A dispensing pipe is installed at the bottom of the mixing chamber. This invention features a sliding cover at the bottom of the discharge port. When receiving material, sliding the sliding cover via a hand groove causes sliders on both sides of the cover to slide inside a track. By sliding the cover, the obstruction area of ​​the discharge port is changed, thereby controlling the discharge volume of the dispensing pipe and achieving the purpose of controlling the flow rate of the solid beverage, making it convenient to use.

[0005] Conventional ribbon mixers used in raw material mixing and dispensing mechanisms are prone to stratification when processing multi-component raw materials with significant differences in density and particle size in solid beverages. This often results in the settling of heavier materials and the floating of lighter materials, creating dead zones within the equipment. To achieve basic mixing uniformity, the mixing time is often significantly extended, leading to low production efficiency. Furthermore, existing mixing and dispensing mechanisms are prone to accumulating powder residue in the discharge pipes and metering chambers of the metering turntable. This residue often requires manual cleaning, which is inefficient. Some equipment equipped with online cleaning systems requires a separate cleaning air source, making it difficult to reuse the main air supply system in the production process. This not only results in structural redundancy and complexity but also significantly increases the manufacturing and operating costs of the equipment. Summary of the Invention

[0006] The purpose of this invention is to address the shortcomings of existing technologies by providing a raw material mixing and distributing mechanism in the solid beverage processing process, thereby shortening the mixing time and effectively improving production efficiency.

[0007] The present invention achieves the above objectives through the following technical solution: a raw material mixing and dispensing mechanism in the solid beverage processing process, comprising a mixing box, a spiral stirring rod, a dispensing box, an airflow mixing aid component, and a cleaning component; The upper end of the mixing box is fixedly provided with a feeding hopper, the lower end of the mixing box is connected to a distributing funnel, the bottom of the distributing funnel is arranged with a discharge pipe in a circumferential array, and the front end of the mixing box is fixedly installed with a PLC control panel. The spiral stirring rod is rotatably installed inside the mixing chamber; The material distribution box is fixedly installed at the lower end of the discharge pipe. A metering turntable is rotatably installed inside the material distribution box. A metering cavity is opened in a circular array at one end of the metering turntable. A material conveying cavity is opened on one side of the metering cavity. A discharge pipe is arranged in a circular array at the lower end of the material distribution box. The airflow mixing assembly includes a concentric double-ring air pipe, an oil-free scroll air compressor, and an angled jet nozzle; The concentric double-ring gas pipe is embedded in the lower end of the mixing box. The concentric double-ring gas pipe has several air outlets. Each air outlet is equipped with a food-grade one-way check diaphragm to prevent material powder from backflowing and clogging the concentric double-ring gas pipe. The oil-free scroll air compressor is fixedly installed on one side of the mixing box. The air outlet, air tank, and filter of the oil-free scroll air compressor are sequentially and sealed together through pipelines. One end of the filter is connected to an air supply pipe, and one end of the air supply pipe is connected to the inside of the concentric double-ring air pipe. The angled jet nozzles are arranged in a uniform array along the circumference of the inner wall of the mixing chamber, and the air inlet end of the angled jet nozzles is connected to the inside of the concentric double-ring air pipe through the air guide pipe. The cleaning assembly includes an electric cylinder and an annular tube; The electric cylinder is fixedly installed at the lower end of the mixing tank, and the electric cylinder is electrically connected to the PLC control panel; The annular tube is fixedly connected to the output end of the electric cylinder. The annular tube is connected to the air supply pipe through a round tube. A lifting tube is installed in a circumferential array at the lower end of the annular tube. A nozzle is provided at one end of the lifting tube, and a miniature one-way valve is provided at one end of the nozzle.

[0008] Furthermore, in order to enable the ribbon stirring rod to rotate, a first motor is fixedly installed at the upper end of the mixing box. The output end of the first motor is connected to the ribbon stirring rod through a coupling, and the first motor is electrically connected to the PLC control panel.

[0009] Furthermore, to facilitate material discharge, the number of metering chambers is the same as the number of discharge pipes, and the metering chambers can rotate with the metering turntable to a position coaxially aligned with the corresponding discharge pipe.

[0010] Furthermore, in order to collect the materials, the lower part of the distribution box is provided with a uniform array of collection pipes along the circumference, and the inlet port of the collection pipe is adapted to the outlet port of the conveying chamber.

[0011] Furthermore, in order to control the oil-free scroll air compressor, the oil-free scroll air compressor is electrically connected to the PLC control panel.

[0012] Furthermore, in order to regulate air pressure, a pressure regulating valve and a pulse solenoid valve are sequentially provided at one end of the air supply pipe and the circular pipe along the air intake direction.

[0013] Furthermore, in order to control the pulse solenoid valve, the pulse solenoid valve is electrically connected to the PLC control panel.

[0014] Furthermore, in order to allow the annular tube to move up and down, a telescopic guide rod is fixedly installed at the lower end of the mixing box, and the free end of the telescopic guide rod is fixedly connected to the annular tube.

[0015] Furthermore, in order to scrape off the raw material on the upper surface of the metering turntable, an arc-shaped scraper is arranged in a circumferential array inside the material distribution box, and the arc-shaped scraper slides and fits against the upper surface of the metering turntable.

[0016] The technical effects and advantages of this invention are as follows: 1. By setting concentric double-ring air pipes and circumferential oblique jet nozzles in the mixing chamber, and cooperating with the spiral stirring rod to form a mechanical stirring and airflow fluidization composite mixing mode, this invention can effectively suppress the stratification problem caused by the density and particle size differences of the multi-component raw materials of solid beverages, eliminate the mixing dead corners at the bottom and side walls of the chamber, significantly improve the mixing uniformity, shorten the mixing time, and effectively improve production efficiency. 2. The cleaning component adopts an electric cylinder-driven annular pipe and nozzle lifting structure, combined with pulse jet, to perform targeted and efficient blowing and cleaning of the metering chamber and discharge pipeline of the metering turntable, reducing powder residue and cross-contamination, replacing manual cleaning, and significantly improving cleaning efficiency. At the same time, an oil-free scroll air compressor is used as a unified air source, combined with an air tank and multi-stage filters to achieve clean air supply. The airflow mixing and online cleaning share a single air circuit system, eliminating the need for a separate clean air source, simplifying the overall structure, reducing equipment manufacturing, installation and operating costs, while meeting the hygiene requirements of food production. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a cross-sectional view of the mixing box structure of the present invention; Figure 3 This is a schematic diagram of the airflow mixing aid component of the present invention; Figure 4 This is a schematic diagram of the concentric double-ring tracheal structure of the present invention; Figure 5 This is a schematic diagram of the material distribution box structure of the present invention; Figure 6 This is a schematic diagram of the cleaning component structure of the present invention; Figure 7 This is a schematic diagram of the metering turntable structure of the present invention; Figure 8 This is a schematic diagram of the metering cavity structure of the present invention.

[0018] In the diagram: 1. Mixing box; 2. Distributor box; 3. Airflow mixing assembly; 301. Concentric double-ring air pipe; 302. Oil-free scroll air compressor; 303. Angled jet nozzle; 304. Air outlet; 305. Air delivery pipe; 4. Cleaning assembly; 401. Electric cylinder; 402. Ring pipe; 403. Lifting pipe; 404. Nozzle; 5. Distributor funnel; 6. Discharge pipe; 7. PLC control panel; 8. Metering turntable; 9. Metering chamber; 10. Conveying chamber; 11. Discharge branch pipe; 12. Air guide pipe; 13. Circular pipe; 14. First motor; 15. Collection pipe; 16. Telescopic guide rod; 17. Arc-shaped scraper. Detailed Implementation

[0019] 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.

[0020] Please see Figures 1-8 As shown, a raw material mixing and dispensing mechanism in a solid beverage processing process includes a mixing box 1, a spiral stirring rod, a dispensing box 2, an airflow mixing aid 3, and a cleaning assembly 4. A feeding hopper is fixedly installed at the upper end of the mixing box 1, and a distributing funnel 5 is connected to the lower end of the mixing box 1. A discharge pipe 6 is arranged in a circumferential array at the bottom of the distributing funnel 5. A PLC control panel 7 is fixedly installed at the front end of the mixing box 1. The ribbon stirring rod is rotatably installed inside the mixing box 1. The first motor 14 is fixedly installed at the upper end of the mixing box 1. The output end of the first motor 14 is connected to the ribbon stirring rod through a coupling. The first motor 14 is electrically connected to the PLC control panel 7. The dispensing box 2 is fixedly installed at the lower end of the discharge pipe 6. A metering turntable 8 is rotatably installed inside the dispensing box 2. One end of the metering turntable 8 has metering chambers 9 arranged in a circular array, and a conveying chamber 10 is located on one side of each metering chamber 9. Discharge pipes 11 are arranged in a circular array at the lower end of the dispensing box 2. The number of metering chambers 9 is the same as the number of discharge pipes 11, and each metering chamber 9 can rotate with the metering turntable 8 to a position coaxially aligned with its corresponding discharge pipe 11. Collection pipes 15 are evenly arranged in a circumferential array at the lower part of the dispensing box 2, and the inlet of the collection pipes 15... The material port is adapted to the discharge port of the material conveying chamber 10. The inner circumferential array of the material distribution box 2 is provided with arc-shaped scraper plates 17. The arc-shaped scraper plates 17 slide against the upper surface of the metering turntable 8. During use, a solenoid valve is provided at the feed end of the collection pipe 15 to control the flow of the collection pipe 15. The solenoid valve is electrically connected to the PLC control panel 7. A servo motor is fixedly installed at the lower end of the material distribution box 2. The output end of the servo motor is fixedly connected to the metering turntable 8 to drive the metering turntable 8. The servo motor is electrically connected to the PLC control panel 7.

[0021] The airflow mixing assembly 3 includes a concentric double-ring air pipe 301, an oil-free scroll air compressor 302, and an angled jet nozzle 303; A concentric double-ring air pipe 301 is embedded in the lower end of the mixing box 1. Several air outlets 304 are opened on the concentric double-ring air pipe 301. Each air outlet 304 is equipped with a food-grade one-way check diaphragm to prevent material powder from backflowing and clogging the concentric double-ring air pipe 301. An oil-free scroll air compressor 302 is fixedly installed on one side of the mixing box 1. The air outlet, air tank, and filter of the oil-free scroll air compressor 302 are sequentially and sealed through pipelines. One end of the filter is connected to an air supply pipe 305. One end of the air supply pipe 305 is connected to the inside of the concentric double-ring air pipe 301. The oil-free scroll air compressor 302 is electrically connected to the PLC control panel 7. One end of the air supply pipe 305 and the round pipe 13 are respectively provided with a pressure regulating valve and a pulse solenoid valve along the air intake direction. The pulse solenoid valve is electrically connected to the PLC control panel 7. The oblique jet nozzles 303 are arranged in a uniform array along the circumference of the inner wall of the mixing box 1, and the air inlet end of the oblique jet nozzles 303 is connected to the inside of the concentric double-ring air pipe 301 through the air guide pipe 12. Cleaning component 4 includes an electric cylinder 401 and an annular tube 402; The electric cylinder 401 is fixedly installed at the lower end of the mixing tank 1, and the electric cylinder 401 is electrically connected to the PLC control panel 7; The annular pipe 402 is fixedly connected to the output end of the electric cylinder 401. The annular pipe 402 is connected to the air supply pipe 305 through the round pipe 13. The lower end of the annular pipe 402 is equipped with a lifting pipe 403 in a circumferential array. One end of the lifting pipe 403 is provided with a nozzle 404. One end of the nozzle 404 is provided with a miniature one-way valve. The lower end of the mixing box 1 is fixedly installed with a telescopic guide rod 16. The free end of the telescopic guide rod 16 is fixedly connected to the annular pipe 402.

[0022] Working principle: During use, the multi-component raw materials of the solid beverage to be mixed are fed into the sealed cavity of the mixing chamber 1 through the feed hopper fixed at the upper end of the mixing chamber 1 according to the preset formula. After the feeding is completed, the PLC control panel 7 issues the operation command to simultaneously start the first motor 14 and the oil-free scroll air compressor 302 of the airflow mixing component 3 to complete the equipment pre-start before the mixing operation. Among them, the clean compressed gas generated by the oil-free scroll air compressor 302 is first pressure stabilized by the matching air storage tank, and then undergoes food-grade purification treatment of oil-free, water-free, and dust-free through multi-stage filters. The purified gas is fed into the air supply pipe 305, providing a unified and compliant clean air source for subsequent airflow mixing and online cleaning. There is no need to configure multiple sets of air supply systems separately, which greatly simplifies the overall structure of the equipment.

[0023] The PLC control panel 7 controls the first motor 14 to run stably at a preset speed. The output end of the first motor 14 drives the spiral stirring rod installed inside the mixing box 1 to rotate through a coupling. The spiral stirring rod adopts an inner and outer reverse spiral structure. During the rotation, it can simultaneously push the raw materials in the box from both ends to the center and diffuse from the center to both ends, thus completing the basic large-scale uniform mixing of the raw materials. Meanwhile, the gas supply pipe 305 continuously delivers the purified clean gas to the concentric double-ring gas pipe 301 embedded at the lower end of the mixing box 1. Part of the gas is ejected vertically upward from several evenly spaced air outlets 304 on the concentric double-ring gas pipe 301, causing the heavy sedimented raw materials at the bottom of the mixing box 1 to form a micro-fluidized suspension state, thus avoiding the stratification problem of heavy materials sinking to the bottom and light materials floating from the source. The other part of the gas is delivered through the gas guide pipe 12 to the oblique jet nozzles 303 evenly arrayed along the inner wall of the mixing box 1, and ejected obliquely upward along the inner wall of the box, continuously disturbing the raw materials on the side walls and corners of the box, eliminating the mixing dead corners that traditional spiral mixing cannot cover. Each outlet 304 of the concentric double-ring gas pipe 301 is equipped with a food-grade one-way check diaphragm. This diaphragm allows gas to flow out only unidirectionally from the inside of the gas pipe into the mixing chamber 1, completely preventing material powder from flowing back into the gas pipe during the mixing process, preventing blockage of the concentric double-ring gas pipe 301, and ensuring long-term stable operation of the gas path. Through the above-mentioned combined mechanical and airflow mixing mode, the mixing time can be significantly shortened while significantly improving the uniformity of raw material mixing, meeting the batch stability and food compliance requirements of solid beverage production.

[0024] The mixed materials are collected through a distribution funnel 5 connected to the lower end of the mixing box 1, and then fall evenly into the distribution box 2 fixed at the lower end of the discharge pipe 6, which is arranged in a circumferential array at the bottom of the distribution funnel 5. The discharge pipe 6 is equipped with a first solenoid valve to control the flow of the material. The first solenoid valve is electrically connected to the PLC control panel 7. The metering turntable 8, which is rotated inside the distribution box 2, has metering chambers 9 arranged in a circumferential array. These chambers receive the material falling from the discharge pipe 6. After a specified time, the metering turntable 8 rotates at a preset speed under the drive of the matching drive mechanism. During the rotation, the arc-shaped scraper 17 arranged in a circumferential array inside the distribution box 2 slides against the upper surface of the metering turntable 8, which can evenly scrape off the excess material overflowing from the top of the metering chamber 9, ensuring that the volume of material filled in each metering chamber 9 is completely consistent, thus achieving high-precision volumetric metering. When the metering chamber 9, containing a fixed amount of material, rotates with the metering turntable 8 to a position coaxially aligned with the discharge pipes 11 arranged in a circular array at the lower end of the distribution box 2, the material in the metering chamber 9 falls precisely into the corresponding discharge pipe 11 under the action of gravity, completing multi-channel synchronous equal-quantity material distribution. The conveying chamber 10 opened on one side of the metering chamber 9 on the metering turntable 8 can store the excess material scraped off by the arc-shaped scraper 17. When cleaning is required, the metering turntable 8 is first reset so that the inlet port of the collection pipe 15 corresponds to the outlet port of the conveying chamber 10. Then, the solenoid valve set at the inlet end of the collection pipe 15 is opened through the PLC control panel 7, and the material is conveyed into the collection pipe 15. The inlet port of the collection pipe 15 is adapted to the outlet port of the conveying chamber 10 to realize the closed-loop recycling of excess material and avoid raw material waste. After recycling, the solenoid valve is closed.

[0025] When a single batch of production is completed, a formula changeover is initiated, or the equipment is regularly maintained, the metering turntable 8 is first rotated via the PLC control panel 7, aligning the discharge end of the metering chamber 9 with the inlet end of the discharge branch pipe 11. At this time, the nozzle 404 is positioned directly above it. Then, the electric cylinder 401, which is fixedly installed at the lower end of the mixing box 1, is started via the PLC control panel 7. The output end of the electric cylinder 401 drives the annular pipe 402, which is fixedly connected to it, to move downward. The telescopic guide rod 16, which is fixedly installed at the lower end of the mixing box 1, has its free end fixedly connected to the annular pipe 402. It can provide stable guidance during the lifting and lowering of the annular pipe 402, preventing the annular pipe 402 from shifting or shaking. This ensures that the lifting pipe 403, which is installed in a circular array at the lower end of the annular pipe 402, and the nozzle 404 at the end of the lifting pipe 403, can be accurately aligned with the corresponding cleaning station of the metering chamber 9 and the discharge branch pipe 11 of the metering turntable 8. The annular pipe 402 is connected to the air supply pipe 305 via the circular pipe 13, directly reusing the clean air source of the airflow mixing component 3, eliminating the need for a separate clean air source. Pressure regulating valves are sequentially installed along the air inlet direction on the air supply pipe 305 and the circular pipe 13, precisely adjusting the pressure of the purging airflow. A pulse solenoid valve connected in series with the pressure regulating valve outputs pulsed clean airflow at a preset frequency under the control of the PLC control panel 7. The airflow passes through the annular pipe 402 and the riser pipe 403 before exiting through the nozzle 404, performing targeted, thorough pulse purging of the powder residue on the inner wall of the metering chamber 9 and the inner wall of the discharge branch pipe 11, completely removing powder residue and preventing cross-contamination between batches. The residual powder is discharged through the discharge branch pipe 11, and a recovery box can be installed at its lower end for recycling. A miniature one-way valve is installed at the outlet end of the nozzle 404, allowing only one-way purging airflow to prevent powder stirred up during cleaning from flowing back into the nozzle 404 and the air path, avoiding air path blockage and ensuring the long-term stable operation of the cleaning component 4. After cleaning, the PLC control panel 7 controls the electric cylinder 401 to drive the annular tube 402 to reset to the initial position, and the equipment can then enter the next batch production process. No manual intervention is required throughout the process, which greatly improves the production efficiency and changeover speed of the equipment.

[0026] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0027] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A raw material mixing and dispensing mechanism in a solid beverage processing procedure, characterized in that: It includes a mixing box (1), a ribbon stirring rod, a dispensing box (2), an airflow mixing component (3), and a cleaning component (4); The upper end of the mixing box (1) is fixedly provided with a feeding hopper, the lower end of the mixing box (1) is connected to a distributing funnel (5), the bottom of the distributing funnel (5) is arranged in a circumferential array with a discharge pipe (6), and the front end of the mixing box (1) is fixedly installed with a PLC control panel (7). The spiral stirring rod is rotatably installed inside the mixing box (1); The material distribution box (2) is fixedly installed at the lower end of the discharge pipe (6). A metering turntable (8) is rotatably installed inside the material distribution box (2). A metering cavity (9) is opened in a circular array at one end of the metering turntable (8). A conveying cavity (10) is opened on one side of the metering cavity (9). A discharge pipe (11) is arranged in a circular array at the lower end of the material distribution box (2). The airflow mixing assembly (3) includes a concentric double-ring air pipe (301), an oil-free scroll air compressor (302), and an angled jet nozzle (303). The concentric double-ring air pipe (301) is embedded in the lower end of the mixing box (1). The concentric double-ring air pipe (301) has several air outlets (304). Each air outlet (304) is provided with a food-grade one-way check diaphragm to prevent the material powder from backflowing and clogging the concentric double-ring air pipe (301). The oil-free scroll air compressor (302) is fixedly installed on one side of the mixing box (1). The air outlet, air tank and filter of the oil-free scroll air compressor (302) are sequentially sealed and connected through pipelines. One end of the filter is connected to an air supply pipe (305). One end of the air supply pipe (305) is connected to the inside of the concentric double-ring air pipe (301). The oblique jet nozzles (303) are arranged in a uniform array along the inner wall of the mixing box (1), and the air inlet end of the oblique jet nozzles (303) is connected to the interior of the concentric double-ring air pipe (301) through the air guide pipe (12); The cleaning assembly (4) includes an electric cylinder (401) and an annular tube (402). The electric cylinder (401) is fixedly installed at the lower end of the mixing box (1), and the electric cylinder (401) is electrically connected to the PLC control panel (7); The annular pipe (402) is fixedly connected to the output end of the electric cylinder (401). The annular pipe (402) is connected to the air supply pipe (305) through the round pipe (13). The lower end of the annular pipe (402) is equipped with a lifting pipe (403) in a circumferential array. One end of the lifting pipe (403) is provided with a nozzle (404), and one end of the nozzle (404) is provided with a miniature one-way valve.

2. The raw material mixing and dispensing mechanism in the solid beverage processing process as described in claim 1, characterized in that: The mixing box (1) is fixedly installed with a first motor (14) at the upper end. The output end of the first motor (14) is connected to the ribbon stirring rod through a coupling. The first motor (14) is electrically connected to the PLC control panel (7).

3. The raw material mixing and dispensing mechanism in the solid beverage processing process as described in claim 1, characterized in that: The number of metering chambers (9) is the same as the number of discharge pipes (11), and the metering chambers (9) can rotate with the metering turntable (8) to a position coaxially aligned with the corresponding discharge pipes (11).

4. The raw material mixing and dispensing mechanism in the solid beverage processing process as described in claim 1, characterized in that: The lower part of the material distribution box (2) is provided with a uniform array of collection pipes (15) along the circumference, and the inlet port of the collection pipe (15) is adapted to the outlet port of the material conveying chamber (10).

5. The raw material mixing and dispensing mechanism in the solid beverage processing process as described in claim 1, characterized in that: The oil-free scroll air compressor (302) is electrically connected to the PLC control panel (7).

6. The raw material mixing and dispensing mechanism in the solid beverage processing process as described in claim 1, characterized in that: Both the gas supply pipe (305) and the circular pipe (13) are provided with a pressure regulating valve and a pulse solenoid valve at one end along the gas inlet direction.

7. The raw material mixing and dispensing mechanism in the solid beverage processing process as described in claim 6, characterized in that: The pulse solenoid valve is electrically connected to the PLC control panel (7).

8. The raw material mixing and dispensing mechanism in the solid beverage processing process as described in claim 1, characterized in that: The lower end of the mixing box (1) is fixedly installed with a telescopic guide rod (16), and the free end of the telescopic guide rod (16) is fixedly connected to the annular tube (402).

9. The raw material mixing and dispensing mechanism in the solid beverage processing process as described in claim 1, characterized in that: The inner circumferential array of the material distribution box (2) is provided with an arc-shaped scraper (17), which slides and adheres to the upper surface of the metering turntable (8).

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