Fully automatic essence dispensing machine

Abstract

The application discloses a kind of full-automatic essence batching machine, it includes essence material cylinder, injection valve, injection cylinder fixed disc, fixed disc support frame, injection valve fixed disc, carousel servo motor, electronic scale and control center, a certain number of essence material cylinders are fixedly arranged on injection cylinder fixed disc, injection valve corresponding with the number of essence material cylinder on injection cylinder fixed disc is fixedly arranged on injection valve fixed disc, injection cylinder fixed disc is fixedly linked with injection valve fixed disc by fixed disc support frame, electronic scale is independently fixedly installed at the certain position under the circumferential motion track of injection valve;Each essence material cylinder is communicated with its corresponding injection valve by independent injection conveying pipe, one-way air inlet valve is provided on essence material cylinder, one-way air inlet valve and injection valve are signal control connection with control center.The full-automatic essence batching machine provided by the application effectively reduces the weighing error caused by manual operation, reduces the cumbersome steps of manual operation, improves the batching efficiency, ensures the accuracy of weighing, and realizes the automatic preparation of essence laboratory precision small sample which has never been realized in the field.

Description

Technical Field

[0001] This invention relates to the field of automated flavoring preparation equipment, and in particular to a fully automatic flavoring ingredient mixing machine. Background Technology

[0002] The fragrance and flavor industry is a high-tech industry in the national economy with strong supporting industries and high correlation with other industries. Its products are widely used in flavoring products such as food, medicine, daily chemicals, tobacco, and feed. However, the production and processing of fragrances and flavors often requires laboratory sample preparation. At present, the samples of fragrances at home and abroad are almost all prepared by manually weighing the fragrance materials one by one in the laboratory using a balance scale with an accuracy of one part per thousand or one part per ten thousand. This kind of sample preparation by manual weighing in the laboratory is cumbersome, time-consuming, and prone to many problems. It also often leads to inconsistencies between the sample and the standard sample and the bulk product, resulting in low preparation efficiency.

[0003] Chinese patent CN202110763836.7 discloses an automatic dispensing system and a tobacco flavoring dispensing machine. This automatic dispensing system places a weighing device on a dispensing base, which is driven by a dispensing base drive device to move along a guide rail. This causes the dispensing base to move the dispensing container to the outlet of the raw material container at a corresponding location. A control system then controls the discharge valve to add a predetermined mass of material into the dispensing container. This system, which automatically dispenses materials by moving the dispensing base containing the weighing device and dispensing container to each raw material container, suffers from drawbacks. Because the weighing device is constantly moved during the automatic dispensing process, and requires considerable time for calibration or zeroing after each movement, and because it needs to be moved, it cannot be used in a closed environment, thus failing to achieve high-precision dispensing. Therefore, the weighing accuracy of this automatic flavoring sample preparation equipment that uses a mobile weighing device is often only within the range of one percent. As a result, this disclosed technology cannot be applied to the automatic preparation of high-precision weighing required for laboratory small samples, and can only be used in the automated mass production of flavorings in industrial production.

[0004] In fact, the basic principle of automated equipment used in automatic sample preparation or ingredient dispensing of flavorings is the same as the patented technology disclosed above. It involves moving a weighing device to the raw material cylinder and then automatically weighing and dispensing it. This design is mainly because there are often hundreds of flavoring raw material cylinders in the automatic dispensing equipment. These hundreds of flavoring raw material cylinders are often arranged in an array. During automatic feeding, the required raw material cylinder must be selected and moved to the weighing device. It is currently difficult for technicians in this field to change their established concepts. Therefore, without exception, all automatic sample preparation or dispensing equipment used at home and abroad does not use moving raw material cylinders. As a result, the weighing accuracy is almost always only at the level of one percent. For industrial large-scale production, if an accuracy of one-thousandth is to be achieved, the machining and installation accuracy requirements for the moving device carrying the electronic scale are extremely high. The most advanced equipment abroad that can achieve an accuracy of one-thousandth often costs several million or even tens of millions of RMB per set. Moreover, after a period of use, its accuracy will be greatly reduced due to the influence of the usage environment. Therefore, there is currently no automated equipment available, either domestically or internationally, to replace the preparation of laboratory fragrance samples. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of the prior art by providing a fully automatic flavoring batching machine that can reduce manual operation, achieve automated high-precision weighing and proportioning, reduce errors, and improve batching efficiency.

[0006] To achieve the above objectives, the fully automatic flavoring dispensing machine designed in this invention includes flavoring cylinders, dispensing valves, a dispensing cylinder fixing plate, a fixing plate support frame, a dispensing valve fixing plate, a turntable servo motor, an electronic scale, and a control center. A certain number of flavoring cylinders are fixedly mounted on the dispensing cylinder fixing plate, and dispensing valves corresponding to the number of flavoring cylinders on the dispensing valve fixing plate are fixedly mounted on the dispensing valve fixing plate. The dispensing cylinder fixing plate is fixedly linked to the dispensing valve fixing plate through the fixing plate support frame. The turntable servo motor drives the dispensing cylinder fixing plate, the fixing plate support frame, or the dispensing valve fixing plate to rotate. An electronic scale is independently fixed at a certain position under the circular motion trajectory of the dispensing valve. Each flavoring cylinder is connected to its corresponding dispensing valve through an independent dispensing delivery pipe. A one-way air inlet valve is provided on the flavoring cylinder, and the one-way air inlet valve and the dispensing valve are connected to the control center for signal control. During operation, a pressurized air source is connected to the one-way air inlet valve to provide the required pressurization to the flavoring cylinder.

[0007] To more effectively control the injection accuracy and speed of the injection valve, an air inlet solenoid valve is installed on the injection valve. The injection valve is connected to the control center via signal control, meaning the control center controls the opening and closing of the injection valve by controlling the opening and closing of the air inlet solenoid valve. In implementation, a pressurized air source is connected to the air inlet solenoid valve for opening the injection valve. The injection valve may have an injection valve channel and an outlet. An outlet sealing pin is installed at the outlet, and a piston is connected to the outlet sealing pin. A spring is installed on one side of the piston, and an air inlet channel is installed on the other side. An air inlet block is installed on the injection valve, and the air inlet channel communicates with the air inlet block. An air sealing ring and a material sealing ring are respectively installed on the outlet sealing pin section between the air inlet channel and the injection valve channel. An air inlet sealing gasket is installed on the air inlet solenoid valve, and the opening and closing sealing connection between the injection valve and the air inlet solenoid valve is achieved through the clutch sealing connection between the air inlet sealing gasket and the air inlet block.

[0008] To facilitate control of the air pressure inside the flavoring cartridge and enable external injection under different air pressures, a one-way exhaust valve can be installed on the flavoring cartridge. The one-way exhaust valve contains an exhaust valve core and an exhaust port. An automatic pressure exhaust control device, connected to the exhaust valve core and controlling the opening or closing of the exhaust port, is installed on the exhaust valve core. To allow for pressurization of different flavoring cartridges using a single air path, an automatic pressure intake docking control device is installed on the one-way intake valve. This docking involves a pressure intake block connected to the automatic pressure intake docking control device. The pressure intake block also contains a pressure intake port and a rubber connector. The automatic pressure intake docking control device engages with the one-way intake valve by driving the rubber connector.

[0009] To facilitate the provision of the air pressure required for opening and closing the injection valve via a clutch mechanism, an air inlet is provided on the air intake solenoid valve. The air-to-telescopic cylinder of the injection valve is fixedly connected to the air intake solenoid valve. The air-to-telescopic clamping cylinder of the injection valve drives the air intake solenoid valve to perform a clutch-sealing connection between the air intake sealing gasket and the air intake block.

[0010] The fully automatic flavoring dispensing machine provided by this invention employs a fixed electronic scale and a dispensing hopper on the scale. By rotating the flavoring hopper and the injection valve, and using a pressurized air source and a pressure supply air source respectively connected to the flavoring hopper and the injection valve in a sealed clutch configuration, the machine achieves automated and precise flavoring dispensing during the dispensing process. A pressurized air source, through telescopic movement, connects to multiple flavoring hoppers for pressurization; a pressure supply air source connects to multiple injection valves for injection and air supply. This effectively reduces weighing errors caused by manual operation, eliminates cumbersome manual steps, and improves dispensing efficiency. Because the electronic scale is independently fixed and stationary, weighing accuracy is guaranteed. Therefore, an electronic scale with an accuracy of one ten-thousandth can be used for automatic weighing of flavoring ingredients. Thus, the fully automatic flavoring dispensing machine provided by this invention can be used not only for industrial production but also for the automated preparation of small-scale flavoring samples in laboratories, achieving automated preparation of precise small-scale flavoring samples in the laboratory—a feat never before achieved in this field. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present invention;

[0012] Figure 2 This is a schematic diagram of the separation state structure of the fragrance barrel and the automatic control device for material pressure air inlet docking in the embodiment;

[0013] Figure 3 This is a schematic diagram of the structure of the fragrance cartridge in the air intake and filling docking state in an embodiment;

[0014] Figure 4 yes Figure 1 A top-down view of the structure.

[0015] The components include: 1. Material pressure exhaust automatic control device; 2. Exhaust valve core; 3. Exhaust port; 4. One-way exhaust valve; 5. Material cylinder cover; 6. Fragrance cylinder; 7. Injection pipe; 8. Injection block; 9. Injection valve channel; 10. Outlet; 11. Outlet sealing pin; 12. Injection valve; 13. Inlet block; 14. Inlet sealing gasket; 15. Inlet solenoid valve; 16. Spring; 17. Piston; 18. Air seal ring; 19. Material seal ring; 20. Material pressure air inlet docking automatic control device; 21. Pneumatic module; 22. Material pressure docking servo motor; 23. Injection cylinder fixing. 23. Disc 25. Fixed disc support frame 26. Injection valve fixed disc 27. Small gear 28. Turntable servo motor 29. Electronic scale 30. Batching hopper 31. Solenoid valve air inlet 32. Injection valve air docking telescopic cylinder 33. Injection valve air docking clamping cylinder 34. Upper and lower docking fixed seat 35. External gear rotary support bearing 36. Material pressure air inlet block 37. Material pressure air inlet 38. Rubber joint 39. One-way air inlet valve 40. Batching rack 41. Control center 42. Air inlet channel 61. Discharge port 62. Pressure sensor 63. Detailed Implementation

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0017] Example 1:

[0018] like Figure 1 , Figure 2 As shown in this embodiment, a fully automatic flavoring dispensing machine includes flavoring cylinders 6, dispensing valves 12, a dispensing cylinder fixing plate 23, a fixing plate support frame 25, a dispensing valve fixing plate 26, a turntable servo motor 28, an electronic scale 29, and a control center 41. A certain number of flavoring cylinders 6 are fixedly mounted on the dispensing cylinder fixing plate 23. Dispensing valves 12 corresponding to the number of flavoring cylinders 6 on the dispensing cylinder fixing plate 23 are fixedly mounted on the dispensing valve fixing plate 26. The dispensing cylinder fixing plate 23 is supported by a fixing plate. The frame 25 is fixedly linked to the injection valve fixing plate 26. The turntable servo motor 28 drives the injection cylinder fixing plate 23, the fixing plate support frame 25, or the injection valve fixing plate 26 to rotate. The electronic scale 29 is independently fixedly installed at a certain position under the circular motion trajectory of the injection valve 12. Each flavor cylinder 6 is connected to its corresponding injection valve 12 through an independent injection delivery pipe 7. A one-way air inlet valve 39 is provided on the flavor cylinder 6. The one-way air inlet valve 39 and the injection valve 12 are connected to the control center 41 for signal control.

[0019] During operation, a pressurized air source is connected to the one-way air inlet valve 39 to provide the required pressurization to the flavoring cylinder 6. During operation, when the turntable servo motor 28 receives a control signal from the control center 41, it drives the flavoring cylinder 6 and the injection valve 12 to perform circular motion, moving the injection valve 12 corresponding to the desired flavoring cylinder 6 above the electronic scale 29. The mixing tank 30 is placed on the electronic scale 29. The control center 41 controls the air inlet pressure and injection pressure within the flavoring cylinder 6 according to the set data for the amount of flavoring to be injected into the flavoring cylinder 6 and the weighing signal from the electronic scale 29. The opening and closing of the material valve 12 allows for the injection of the required amount of flavoring into the ingredient container 30. While the flavoring container 6 and the material valve 12 operate under the drive of the turntable servo motor 28, the electronic scale 29 remains stationary due to its independent and fixed installation. It is unaffected by mechanical vibration or environmental interference, thus ensuring the accuracy of the weighing process. This allows for precise injection of the flavoring from the flavoring container 6 into the ingredient container when the material valve 12 is positioned above the ingredient container 30 on the electronic scale 29. The electronic scale 29 provided by this invention can achieve an accuracy of 0.01% or higher for high-precision applications in laboratories. Furthermore, the fully automatic flavoring dispensing machine provided by this invention can also be configured with electronic scales of 0.1% or other accuracy requirements to meet the needs of large-scale factory production. Here, the control software used by the control center 41 to control the air pressure in the flavoring cylinder 6 and the opening and closing of the injection valve 12 based on the set data of the amount of flavoring to be injected into the flavoring cylinder 6 and the weighing signal of the electronic scale 29 is something that any ordinary software engineer can implement with the guidance of this invention, and will not be described in detail here.

[0020] Example 2:

[0021] This embodiment provides a fully automatic flavoring dispensing machine. Based on Embodiment 1, an air intake solenoid valve 15 is added to the dispensing valve 12. The dispensing valve 12 is connected to the control center 41 via signal control; the control center 41 controls the opening and closing of the dispensing valve 12 by controlling the opening and closing of the air intake solenoid valve 15. The dispensing valve 12 provided in this embodiment has a dispensing valve channel 9, a discharge port 10, and a discharge port sealing pin 11 on the discharge port 10. A piston 17 is connected to the discharge port sealing pin 11. A spring 16 is provided on one side of piston 7, and an air inlet channel 42 is provided on the other side of piston 17. An air inlet block 13 is provided on the injection valve 12, and the air inlet channel 42 communicates with the air inlet block 13. An air sealing ring 18 and a material sealing ring 19 are respectively provided on the outlet sealing pin 11 section between the air inlet channel 42 and the injection valve channel 9. An air inlet sealing gasket 14 is provided on the air inlet solenoid valve 15. The clutch sealing connection between the injection valve 12 and the air inlet solenoid valve 15 is realized through the clutch sealing connection between the air inlet sealing gasket 14 and the air inlet block 13.

[0022] This embodiment provides a fully automatic flavoring dispensing machine. An air inlet 31 is provided on the air inlet solenoid valve 15. A pressurized air source is connected to the air inlet 31 to open the dispensing valve 12. During operation, after the air inlet solenoid valve 15 is sealed to the air inlet block 13 via the air inlet sealing gasket 14, when the air inlet solenoid valve 15 opens, the air pressure from the pressurized air source exerts pressure on the piston 17 through the air inlet channel 42, pushing the piston 17 to compress the spring 16. Simultaneously, this causes the outlet sealing pin 11 to move upwards and open the outlet 10, thus opening the dispensing valve. When the injection valve 12 is opened, the fragrance in the fragrance cylinder 6 is injected out through the injection valve channel 9 and then through the outlet 10. When the air inlet solenoid valve 15 closes the pressurized air source, the air inlet channel 42 is cut off, and the spring 16 pushes the piston 17 to drive the outlet sealing pin 11 to close the outlet 10, that is, close the injection valve 12, so as to realize the injection control of the injection valve 12 by the air inlet solenoid valve 15. The air inlet solenoid valve 15 can be a high-frequency solenoid valve, which can quickly control the rapid movement of the outlet sealing pin 11 through high-frequency changes, thereby controlling the rapid opening and closing of the injection valve 12.

[0023] To further achieve a sealed connection between the intake solenoid valve 15 and the intake block 13 via the intake sealing gasket 14, the intake solenoid valve 15 is fixedly connected to the injection valve air docking telescopic cylinder 32. An injection valve air docking clamping cylinder 33 is connected to the injection valve air docking telescopic cylinder 32. The injection valve air docking clamping cylinder 33 drives the intake solenoid valve 15 to perform a clutch-seal connection between the intake sealing gasket 14 and the intake block 13. During operation, the solenoid valve inlet 31 is connected to the pressurized air source to provide the air pressure required for the opening and closing of the injection valve 12. The control center 41 controls the turntable to stop at the required position according to the previously set operating parameters. After the injection valve air docking telescopic cylinder 32 extends and sends the air intake solenoid valve 15 to the position of the injection valve 12, the injection valve air docking clamping cylinder 33 drives the air intake solenoid valve 15 to push the air intake sealing gasket 14 to tightly engage with the air intake block 13. Because the air intake sealing gasket 14 is made of rubber and has elasticity, it achieves a seal without leakage, thereby realizing the air intake docking function of the injection valve 12.

[0024] Example 3:

[0025] like Figure 2As shown in the figure, the fully automatic flavoring compounding machine provided in this embodiment has a one-way exhaust valve 4 on the flavoring cylinder 6. The one-way exhaust valve 4 has an exhaust valve core 2 and an exhaust port 3. The exhaust valve core 2 is provided with a material pressure exhaust automatic control device 1 that controls the exhaust valve core 2 to open or close the exhaust port 3 and is connected to the exhaust valve core 2. The one-way air inlet valve 39 is provided with a material pressure air inlet docking automatic control device 20 that docks with the one-way air inlet valve 39. The docking with the one-way air inlet valve 39 is achieved by connecting a material pressure air inlet block 36 to the material pressure air inlet docking automatic control device 20. The material pressure air inlet block 36 is also provided with a material pressure air inlet 37 and a rubber connector 38. The material pressure air inlet docking automatic control device 20 docks with the one-way air inlet valve 39 by driving the rubber connector 38 to dock.

[0026] During operation, the automatic control device 20 for material pressure inlet docking (which can be a cylinder) is connected to the pneumatic module 21. The pneumatic module 21 is connected to the material pressure docking servo motor 22. After the material pressure docking servo motor 22 drives the pneumatic module 21 to move to the corresponding position, the automatic control device 20 extends to make the rubber connector 38 fit tightly with the one-way air inlet valve 39. Since the rubber connector 38 is made of rubber, a seal is achieved. The one-way air inlet valve 39 is connected to a pressurized air source through the material pressure inlet 37 to provide the fragrance cartridge 6 with the high pressure required for operation. Since the gas pressurized in the fragrance cartridge 6 will directly contact the fragrance, the gas source can be an inert gas or nitrogen. When the fragrance cartridge 6 is injected with air pressure through the one-way air inlet valve 39, the pressure can be sensed and controlled by the pressure sensor 62 installed on the fragrance cartridge 6.

[0027] Example 4:

[0028] This embodiment provides a fully automatic flavoring dispensing machine. Based on embodiments 1, 2, and 3, its turntable servo motor 28 drives the dispensing valve fixing plate 26 to rotate. Figure 1 , Figure 4As shown, the turntable servo motor 28 can be mounted on the feeding rack 40; a pinion 27 is mounted on the output of the turntable servo motor 28, and an external gear rotary support bearing 35 is fixedly mounted on the feeding rack 40; the pinion 27 meshes with the external gear of the external gear rotary support bearing 35; the injection valve fixing plate 26 is mounted on the external gear rotary support bearing 35. During operation, the turntable servo motor 28 drives the pinion 27 to mesh and rotate with the external gear rotary support bearing 35, and the injection valve fixing plate 26 drives the injection cylinder fixing plate 23 to rotate at any angle under the control of the control center 41. Control center 41 controls the injection valve fixing plate 26 to rotate to the required position and stop. Injection valve air docking telescopic cylinder 32 extends, sending the air intake solenoid valve 15 to the injection valve 12 position. Injection valve air docking clamping cylinder 33 then actuates, sealing the air intake sealing gasket 14 with the air intake block 13. Because the air intake sealing gasket 14 is made of rubber and has elasticity, it achieves a leak-proof seal, thus realizing the air intake docking function of injection valve 12. Additionally, after the material pressure docking servo motor 22 drives the pneumatic module 21 to the corresponding position, the material pressure air intake docking automatic control device 20 extends, causing the rubber connector 38 to tightly fit with the one-way valve 39. The rubber connector 38, being made of rubber, achieves a seal. After docking, according to the control requirements of control center 41, 0.4MP gas is opened through the material pressure air inlet 37, and the pressurized gas source enters the fragrance cylinder 6 through the one-way valve 39 to pressurize the fragrance. In the non-operating state, the outlet sealing pin 11 and the outlet 10 are sealed by the pressure of the spring 16, and the injection valve 12 is closed. When the air inlet solenoid valve 15 receives the opening control command from the control center 41, it opens, and the compressed air from the pressurized air source moves the piston 17 upward to open the injection valve 12, thereby injecting high-pressure fragrance from the outlet 10 into the mixing tank 30. Due to the high pressure of the material, it will be continuously injected in the form of a jet, thus achieving rapid injection. When the electronic scale 29 receives that its weighing weight is close to the target, the control center 41 controls the air inlet solenoid valve 15 to close, and the compression spring 16 causes the outlet sealing pin 11 to seal the injection valve channel 9 and the outlet 10, closing the injection valve 12. After the control center 41 completes the rapid injection, precise injection is required. At this time, the pressure in the fragrance cylinder 6 needs to be switched to low-pressure mode. At this time, the high pressure in the fragrance cylinder 6 needs to be released through the material pressure exhaust automatic control device 1 (in this embodiment, it can be a cylinder). The material pressure exhaust cylinder (hereinafter referred to as the material pressure exhaust cylinder) extends the exhaust valve core 2 of the top pressure one-way exhaust valve 4 to allow high-pressure gas to be discharged through the exhaust port 3. When the pressure sensor 62 detects that the gas pressure in the fragrance cylinder 6 is lower than the low pressure of 0.1 MPa, the material pressure exhaust cylinder 1 retracts, the one-way exhaust valve core 2 resets, the exhaust port 3 closes, and the material pressure air inlet 37 opens to charge 0.1 MPa of low-pressure gas into the stainless steel cylinder 6. At this time, the air inlet solenoid valve 15 controls the opening and closing of the outlet sealing pin 11 at a frequency of 100 Hz, so that the fragrance is injected out of the outlet 10 in the form of small dots, thereby achieving micro-precision injection.

[0029] This embodiment provides a fully automatic flavoring dispensing machine, which effectively reduces weighing errors caused by manual operation, eliminates tedious manual steps, and improves dispensing efficiency. The software control required for the control center 41 mentioned in this embodiment can be developed or modified by those skilled in the art according to actual needs, and will not be described in detail here.

Claims

1. A fully automatic flavoring dispensing machine, comprising a flavoring cylinder (6), an injection valve (12), an injection cylinder fixing plate (23), a fixing plate support frame (25), an injection valve fixing plate (26), a turntable servo motor (28), an electronic scale (29), and a control center (41), characterized in that... A fixed number of flavor cylinders (6) are fixedly installed on the injection cylinder fixing plate (23). An injection valve (12) corresponding to the number of flavor cylinders (6) on the injection cylinder fixing plate (23) is fixedly installed on the injection valve fixing plate (26). The injection cylinder fixing plate (23) is fixedly linked to the injection valve fixing plate (26) through the fixing plate support frame (25). The turntable servo motor (28) drives the injection cylinder fixing plate (23), the fixing plate support frame (25), or the injection valve fixing plate (26) to rotate. An electronic scale (29) is independently fixedly installed at a fixed position under the circular motion trajectory of the injection valve (12). Each flavor cylinder (6) is connected to its corresponding injection valve (12) through an independent injection delivery pipe (7). The material cylinder (6) is equipped with a one-way air inlet valve (39) and a one-way exhaust valve (4). The one-way air inlet valve (39) and the injection valve (12) are connected to the control center (41) by signal control. An air inlet solenoid valve (15) is provided on the injection valve (12). The signal control connection between the injection valve (12) and the control center (41) is that the control center (41) controls the opening and closing of the injection valve (12) by controlling the opening and closing of the air inlet solenoid valve (15). When the turntable servo motor (28) receives the control signal from the control center (41) and drives the fragrance material cylinder (6) and the injection valve (12) to make circular motion, the injection valve (12) corresponding to the required fragrance material cylinder (6) is moved to the position above the electronic scale (29). The ingredient bucket (30) is placed on the electronic scale (29). The control center (41) controls the air pressure in the flavoring cylinder (6) and the opening and closing of the injection valve (12) according to the set data of the amount of flavoring to be injected into the flavoring cylinder (6) and the weighing signal of the electronic scale (29). The injection valve (12) is provided with an injection valve channel (9), an outlet (10), and an outlet sealing pin (11) on the outlet (10). A piston (17) is connected to the outlet sealing pin (11). A spring (16) is provided on one side of the piston (17), and an air inlet channel (42) is provided on the other side of the piston (17). An air inlet block (13) is provided on the injection valve (12), and the air inlet channel (42) communicates with the air inlet block (13). The outlet is located between the air inlet channel (42) and the injection valve channel (9). The sealing pin (11) section is provided with an air sealing ring (18) and a material sealing ring (19); the air inlet (31) of the air inlet solenoid valve (15) is provided with a solenoid valve air inlet; the material injection valve air docking telescopic cylinder (32) is fixedly connected to the air inlet solenoid valve (15); the material injection valve air docking clamping cylinder (33) drives the air inlet solenoid valve (15) to make a clutch sealing connection between the air inlet sealing pad (14) and the air inlet block (13); the air inlet (31) of the solenoid valve is connected to a pressurized air source for opening the material injection valve (12); the air inlet solenoid valve (15) adopts a high-frequency solenoid valve, which can quickly control the rapid movement of the outlet sealing pin (11) through high-frequency changes, thereby controlling the rapid opening and closing of the material injection valve (12) to achieve micro-precision material injection when approaching the target.

2. The fully automatic flavoring dispensing machine according to claim 1, characterized in that... The one-way exhaust valve (4) is provided with an exhaust valve core (2) and an exhaust port (3). The exhaust valve core (2) is provided with a material pressure exhaust automatic control device (1) that controls the exhaust valve core (2) to open or close the exhaust port (3) and is connected to the exhaust valve core (2). The one-way air inlet valve (39) is provided with a material pressure air inlet docking automatic control device (20) that is docked with the one-way air inlet valve (39). The docking with the one-way air inlet valve (39) is provided with a material pressure air inlet block (36) connected to the material pressure air inlet docking automatic control device (20). The material pressure air inlet block (36) is also provided with a material pressure air inlet (37) and a rubber connector (38). The material pressure air inlet docking automatic control device (20) is docked with the one-way air inlet valve (39) by driving the rubber connector (38).

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