A traditional Chinese medicine extraction device with automatic dregs induction device and an extraction method thereof

Abstract

This invention discloses a traditional Chinese medicine extraction device and method for an alcohol precipitation tank with an automatic dregs sensing device. The device includes: a multi-stage cylinder, the first stage of which is connected to the alcohol precipitation tank and can move freely up and down within the tank; the last stage piston rod of the multi-stage cylinder is a hollow tube, inside which a valve-operated cylinder is designed for the flow of medicinal liquid; a valve is installed at the upper end of the hollow tube to control the opening and closing of the medicinal liquid flowing out of the alcohol precipitation tank; a dregs sensing unit is designed at the upper part of the piston rod (hollow tube) of the last stage cylinder, which includes: a sensing cylinder, a sensing piston, a resistance spring, and a pressure sensing valve. The dregs sensing unit is used to sense the position of dregs at the lower end of the alcohol precipitation tank. Once dregs are sensed when the cylinder descends, the pressure sensing valve is immediately triggered, outputting an airflow signal. The pneumatic control system stops the cylinder from descending further, and the entire pneumatic control system automatically shuts down, at which point the valve automatically closes.

Description

Technical Field

[0001] This invention relates to the field of traditional Chinese medicine extraction, specifically to an alcohol precipitation tank extraction device for traditional Chinese medicine with an automatic residue sensing device and its extraction method. Background Technology

[0002] When extracting Chinese medicine, the herbs are usually crushed, placed in a container, and then the corresponding liquid is poured in. After a full chemical reaction, the residue and liquid are separated, and the liquid is extracted using a suitable extraction device. Previously, extraction methods often involved scooping or extracting the liquid from above the alcohol precipitation tank using a container. However, when the extraction device reached the interface between the liquid and the residue, both methods would cause the residue to be stirred up, affecting the quality of the liquid and preventing the complete extraction of the liquid.

[0003] Therefore, it is necessary to design an extraction device that avoids removing the residue to solve the above problems. Summary of the Invention

[0004] Objective of the invention: To provide an alcohol precipitation tank for extracting Chinese medicine with an automatic residue sensing device and a liquid extraction method thereof, so as to solve the above-mentioned problems existing in the prior art.

[0005] Technical solution: A traditional Chinese medicine extraction device for alcohol precipitation tank with automatic residue sensing device, comprising: A multi-stage cylinder, a valve switch unit disposed within the multi-stage cylinder, and a dregs sensing unit connected to the multi-stage cylinder, wherein the multi-stage cylinder, the valve switch unit, and the dregs sensing unit are externally connected to a pneumatic control system. The final piston rod of the multi-stage cylinder has a hollow double-outlet shaft structure, and the hollow inner cavity of the hollow double-outlet shaft structure forms a liquid medicine channel. The dregs sensing unit includes a sensing cylinder sleeved on the end of the final piston rod, a sensing piston adapted to the sensing cylinder, a resistance spring connected to the sensing piston and the sensing cylinder, and a pressure sensing valve disposed inside the sensing cylinder and abutting against the sensing piston. The pressure sensing valve is externally connected to a pneumatic control system. When the multi-stage cylinder is working, it drives the piston rods of each stage to retract and shift from the first stage to the last stage. When the last stage piston rod retracts, it drives the dregs sensing unit to move. After the sensing piston contacts the dregs, it continues to move. The dregs press against the sensing piston and move inside the sensing cylinder. When the sensing piston contacts the pressure sensing valve, it triggers the pressure sensing valve to output an airflow signal. The pneumatic control system shuts down the operation of the multi-stage cylinder and the valve switching unit, and the entire pneumatic control system stops working.

[0006] This invention utilizes a dregs-sensing unit to sense the dregs layer (with the liquid layer located above it). The dregs contact a sensing piston, which in turn contacts a pressure-sensing valve, stopping the operation of the multi-stage cylinders and the valve port cylinder. Simultaneously, a closing spring is designed within the valve port cylinder. When the valve port cylinder stops operating, the closing spring causes it to reset, sealing the valve and closing the liquid channel to prevent dregs from flowing out. When the device is installed at the bottom of an alcohol precipitation tank, the multi-stage cylinders descend slowly and gradually, without disturbing the dregs, maintaining clear separation between the liquid and dregs. When the extraction valve port approaches the dregs, the device automatically senses this and stops the operation of the multi-stage cylinders and the valve port cylinder. At this point, the valve port cylinder, affected by the closing spring, resets, sealing the extraction valve port and preventing further extraction of the liquid.

[0007] In a further embodiment, the tail end of the final stage piston rod is provided with a hollow tail filling rod that communicates with the liquid medicine channel.

[0008] In a further embodiment, the valve switch is adapted to the liquid medicine channel.

[0009] In a further embodiment, the valve switching part includes: A valve cylinder includes a valve cylinder barrel installed in a liquid channel, a valve piston rod inserted into the valve cylinder barrel, and a valve piston body adapted to the valve cylinder barrel installed at the tail end of the valve piston rod. A closing spring is disposed inside the valve port cylinder and connected to the valve port piston body, located between the inner end of the valve port cylinder and the valve port piston body; A valve is installed at the end of the piston rod at the valve port.

[0010] By designing a closing spring, when the valve cylinder stops working, the closing spring resets and drives the valve piston body to move, which in turn drives the valve piston rod to move, causing the valve plug to come into contact with the liquid channel, thus sealing the liquid channel and isolating the flow of the liquid. This prevents the dregs from being carried into the liquid channel by the liquid because the inlet of the liquid channel is close to the dregs layer.

[0011] A valve is installed at the end of the piston rod at the valve port.

[0012] In a further embodiment, the valve includes: A valve port plug is installed at the end of the valve port piston rod and is adapted to the liquid medicine channel; The conical head is connected to the valve plug. By designing the conical head, the final piston rod can break through the residue layer more smoothly when entering the extraction container, reducing resistance. At the same time, when the cylinder rises and encounters the agitator blades, it can push and change the position of the blades to avoid interference.

[0013] A method for extracting traditional Chinese medicine, comprising: First, raise the multi-stage cylinder and wait for the dregs to settle. After the dregs and liquid separate into layers, the valve plug is removed from the liquid channel, and the liquid is discharged into the predetermined container through the liquid channel. After the liquid level drops, the multi-stage cylinder also drops, and the sensing piston will come into contact with the residue layer. As the multi-stage cylinder continues to drop, the sensing piston is pushed against by the residue and moves. When the sensing piston comes into contact with the pressure sensing valve, the multi-stage cylinder and the valve cylinder stop working. After the valve cylinder stops working, the valve piston rod is driven by the closing spring to move, which in turn drives the valve to seal the liquid passage of the final piston rod, thus completing the liquid extraction process.

[0014] Beneficial Effects: This invention discloses a traditional Chinese medicine extraction device for an alcohol precipitation tank with an automatic dregs sensing device and its liquid extraction method. The invention uses a dregs sensing sensor to detect the dregs layer. The dregs contact a sensing piston, which in turn contacts a pressure sensing valve, stopping the operation of the multi-stage cylinders and the valve port cylinder. A closing spring is designed inside the valve port cylinder. When the valve port cylinder stops working, the closing spring resets the cylinder, sealing the liquid channel and preventing the dregs from being extracted. The device is positioned at the bottom of the alcohol precipitation tank, ensuring the extraction port is located there. The multi-stage cylinders descend slowly and gradually, without disturbing the dregs, resulting in clear separation of the liquid and dregs. When the extraction valve port approaches the dregs, the device automatically senses this and stops the operation of the multi-stage cylinders and the valve port cylinder. At this time, the valve port cylinder, affected by the closing spring, resets, sealing the extraction valve port and preventing further extraction of the liquid. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the present invention.

[0016] Figure 2 This is a schematic diagram of the structure of the dregs sensing unit and valve switching unit of the present invention.

[0017] Figure 3 This is a schematic diagram of the structure of the present invention applied to the alcohol precipitation tank of traditional Chinese medicine.

[0018] The attached figures are labeled as follows: 1. Multistage cylinder; 11. First-stage cylinder barrel; 12. Last-stage piston rod; 13. Tail filling rod; 14. Residue sensing unit; 141. Sensing cylinder; 142. Sensing piston; 143. Pressure sensing valve; 144. Resistance spring; 15. Valve switch section; 151. Conical head; 152. Valve plug; 153. Valve port piston rod; 154. Valve port piston body; 155. Closing spring; 156. Valve port cylinder; 2. Alcohol precipitation tank; 21. Liquid medicine layer; 22. Residue medicine layer. Detailed Implementation

[0019] This application relates to an alcohol precipitation tank for extracting Chinese medicine with an automatic residue sensing device and a method for extracting the liquid, which will be explained in detail below through specific embodiments.

[0020] An alcohol precipitation tank for extracting traditional Chinese medicine with an automatic residue sensing device, as shown in the attached document. Figure 1 As shown, it includes: A multi-stage cylinder 1, a valve switch 15 disposed within the multi-stage cylinder 1, and a dregs sensing unit 14 connected to the multi-stage cylinder 1, wherein the multi-stage cylinder 1, the valve switch 15, and the dregs sensing unit 14 are externally connected to a pneumatic control system. The final piston rod 12 of the multi-stage cylinder 1 is a hollow double-outlet shaft structure, and the hollow inner cavity of the hollow double-outlet shaft structure forms a liquid medicine channel. As attached Figure 2 As shown, the residue sensing unit 14 includes a sensing cylinder 141 sleeved on the end of the final stage piston rod 12, a sensing piston 142 adapted to the sensing cylinder 141, a resistance spring 144 connected to the sensing piston 142 and the sensing cylinder 141, and a pressure sensing valve 143 disposed in the sensing cylinder 141 and abutting against the sensing piston 142. The pressure sensing valve 143 is externally connected to a pneumatic control system. When the multi-stage cylinder 1 is working, it drives the piston rods of each stage to retract and shift from the first stage to the last stage. When the last stage piston rod 12 retracts, it drives the dregs sensing unit 14 to move. After the sensing piston 142 contacts the dregs, it continues to move. The dregs press against the sensing piston 142 and move inside the sensing cylinder 141. When the sensing piston 142 contacts the pressure sensing valve 143, it triggers the pressure sensing valve 143 to output an airflow signal. The pneumatic control system shuts down the operation of the multi-stage cylinder 1 and the valve switch unit 15, and the entire pneumatic control system stops working.

[0021] This invention uses a dregs sensing sensor 14 to sense the dregs layer 22 (the liquid layer 21 is located above the dregs layer 22). The dregs contact the sensing piston 142, which in turn causes the piston 142 to contact the pressure sensing valve 143, thus stopping the operation of the multi-stage cylinder 1 and the valve port cylinder. Simultaneously, a closing spring 155 is designed inside the valve port cylinder. When the valve port cylinder stops working, the closing spring 155 causes the valve port cylinder to reset, closing the liquid channel at the valve stopper 152 and preventing the dregs from flowing out. When the device is installed at the bottom of the alcohol precipitation tank 2, the multi-stage cylinder 1 descends slowly and gradually without disturbing the dregs, resulting in a clear separation of the liquid and dregs layer 22. When the extraction valve port approaches the dregs, the device automatically senses this and stops the operation of the multi-stage cylinder 1 and the valve port cylinder. At this time, the valve port cylinder, affected by the closing spring 155, resets, sealing the extraction valve port and preventing further extraction of the liquid.

[0022] The dregs sensing sensor 14 is used to sense the position of the dregs at the lower end of the alcohol precipitation tank 2. Once the dregs are sensed when the multi-stage cylinder 1 descends, it will immediately trigger the pressure sensing valve 143 and output an airflow signal, thereby quickly shutting off the operation of the multi-stage cylinder 1 and the valve switch 15, and the entire pneumatic control system will automatically shut down.

[0023] The multi-stage cylinder 1 is divided into multiple stages. Each stage cylinder consists of five parts: a front end cover, a rear end cover, a cylinder barrel, a piston, and a piston rod. The piston of the first stage cylinder also serves as the rear end cover of the second stage cylinder, and the piston rod of the first stage cylinder also serves as the cylinder barrel of the second stage cylinder. The piston rod of the last stage cylinder is designed as a hollow double-outlet shaft. The hollow tube is used as a flow channel for extracting the drug liquid. Multiple flow channel holes are designed and distributed on the last stage piston rod 12 to allow the airflow to pass through the inside of the tube wall.

[0024] As attached Figure 3 As shown, the front end cover of the first-stage cylinder is designed with a flange for connecting to the alcohol precipitation tank 2, which can be quickly connected to the flange pre-set on the body of the alcohol precipitation tank 2; the hollow piston rod of the last-stage cylinder is designed with a valve cylinder for controlling the opening and closing of the extraction liquid; the front end cover of the first-stage cylinder is designed at the end of the first-stage cylinder barrel 11. The front end of the final piston rod 12 is designed with a residue sensing unit 14. When the residue sensing unit 14 contacts the residue during the descent of the extraction valve port (which is the entrance to the liquid channel), it indicates that the clear liquid has been extracted. The residue triggers the sensing piston 142 to move forward. The sensing piston 142 touches the pressure sensing valve 143 to switch directions and sends a signal that the liquid extraction is complete. The pneumatic control system then operates and stops the multi-stage cylinder 1 and the valve cylinder from continuing to move.

[0025] Multiple air passages are embedded in the tube wall of the final stage piston rod 12, namely the air passage for the back-and-forth movement of the final stage piston, the input air passage of the dregs sensing unit 14, the output air passage of the dregs sensing unit 14, and the exhaust air passage. The tail end of the final stage piston rod 12 is provided with a hollow tail filling rod 13 that communicates with the liquid medicine channel.

[0026] The valve switch part 15 is adapted to the liquid medicine channel.

[0027] The valve switching unit 15 includes: The valve cylinder includes a valve cylinder 156 installed in the liquid channel, a valve piston rod 153 inserted into the valve cylinder 156, and a valve piston body 154 adapted to the valve cylinder 156 installed at the tail of the valve piston rod 153. A closing spring 155 is disposed inside the valve port cylinder 156 and connected to the valve port piston body 154, located between the inner end of the valve port cylinder 156 and the valve port piston body 154. A valve is installed at the end of the valve port piston rod 153.

[0028] By designing a closing spring 155, when the valve cylinder stops working, the closing spring 155 resets and drives the valve piston body 154 to move, which in turn drives the valve piston rod 153 to move, causing the valve plug to come into contact with the liquid channel, thus sealing the liquid channel and isolating the flow of the liquid. This prevents the dregs from being carried into the liquid channel by the liquid because the inlet of the liquid channel is close to the dregs layer 22.

[0029] A valve is installed at the end of the valve port piston rod 153.

[0030] The valve includes: A valve port plug is installed at the end of the valve port piston rod 153 and is adapted to the liquid medicine channel; The conical head 151 is connected to the valve plug 152. By designing the conical head 151, the final piston rod 12 can break through the residue layer 22 more smoothly when entering the extraction container, reducing resistance. At the same time, when the cylinder rises and encounters the agitator blade, it can push and change the position of the blade to avoid interference.

[0031] A method for extracting traditional Chinese medicine, comprising: First, raise the multi-stage cylinder 1 and wait for the dregs to settle. After the dregs and liquid separate into layers, the valve plug is removed from the liquid channel and the liquid is discharged into the predetermined container through the liquid channel. After the liquid level drops, the multi-stage cylinder 1 also drops, and the sensing piston 142 will come into contact with the residue layer 22. As the multi-stage cylinder 1 continues to drop, the sensing piston 142 is pushed against by the residue and moves. When the sensing piston 142 comes into contact with the pressure sensing valve 143, the multi-stage cylinder 1 and the valve cylinder stop working. After the valve cylinder stops working, the valve piston rod 153 is driven by the closing spring 155 to move, which drives the valve plug 152 to seal the liquid channel of the final piston rod 12, thus completing the liquid extraction work.

[0032] Working principle description: First, the multi-stage cylinder 1 is raised, and the dregs are allowed to settle. After the dregs and liquid medicine separate into layers, the valve port is sealed and disengaged from the liquid medicine channel. The liquid medicine is then discharged through the liquid medicine channel into the predetermined container. After the liquid level drops, the multi-stage cylinder 1 also drops, and the sensing piston 142 will come into contact with the residue layer 22. As the multi-stage cylinder 1 continues to drop, the sensing piston 142 is pushed against by the residue and moves. When the sensing piston 142 comes into contact with the pressure sensing valve 143, the multi-stage cylinder 1 and the valve cylinder stop working. After the valve cylinder stops working, the valve piston rod 153 is driven by the closing spring 155 to move, which drives the valve plug 152 to seal the liquid channel of the final piston rod 12, thus completing the liquid extraction work.

[0033] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the specific details in the above embodiments. Within the scope of the technical concept of the present invention, various equivalent transformations can be made to the technical solutions of the present invention, and all such equivalent transformations fall within the protection scope of the present invention.

Claims

1. A traditional Chinese medicine extraction device for an alcohol precipitation tank with an automatic dregs sensing device includes: A multi-stage cylinder (1), a valve switch (15) installed in the multi-stage cylinder (1), and a dregs sensing unit (14) connected to the multi-stage cylinder (1), wherein the multi-stage cylinder (1), the valve switch (15), and the dregs sensing unit (14) are connected to an external pneumatic control system. The feature is that the last stage piston rod (12) of the multi-stage cylinder (1) is a hollow double-outlet shaft structure, and the hollow inner cavity of the hollow double-outlet shaft structure constitutes a liquid channel; The dregs sensing unit (14) includes a sensing cylinder (141) sleeved on the end of the final piston rod (12), a sensing piston (142) adapted to the sensing cylinder (141), a resistance spring (144) connected to the sensing piston (142) and the sensing cylinder (141), and a pressure sensing valve (143) disposed in the sensing cylinder (141) and abutting against the sensing piston (142), wherein the pressure sensing valve (143) is externally connected to a pneumatic control system; When the multi-stage cylinder (1) is working, it rises and falls in stages. When it descends step by step in the alcohol precipitation tank containing the dregs, when the dregs sensing part (14) on the last piston rod (12) touches the dregs, it drives the dregs sensing part (14) to move. After the sensing piston (142) contacts the dregs, it continues to move. The dregs push against the sensing piston (142) and move inside the sensing cylinder (141). When the sensing piston (142) contacts the pressure sensing valve (143), it triggers the pressure sensing valve (143) to output an airflow signal. The pneumatic control system shuts down the operation of the multi-stage cylinder (1) and the valve switch part (15), and the entire pneumatic control system stops working.

2. The alcohol precipitation tank (2) for extracting traditional Chinese medicine with an automatic residue sensing device as described in claim 1, characterized in that: The tail end of the final piston rod (12) is provided with a hollow tail filling rod (13) that communicates with the liquid channel.

3. The alcohol precipitation tank (2) for extracting traditional Chinese medicine with an automatic residue sensing device as described in claim 1, characterized in that: The valve switch (15) is adapted to the liquid channel.

4. The alcohol precipitation tank (2) for extracting traditional Chinese medicine with an automatic residue sensing device as described in claim 1, characterized in that: The valve switching part (15) includes: The valve cylinder includes a valve cylinder barrel (156) installed in the liquid channel, a valve piston rod (153) inserted into the valve cylinder barrel (156), and a valve piston body (154) adapted to the valve cylinder barrel (156) is installed at the tail end of the valve piston rod (153). A closing spring (155) is disposed inside the valve port cylinder (156) and connected to the valve port piston body (154), located between the inner end of the valve port cylinder (156) and the valve port piston body (154); A valve is installed at the end of the valve port piston rod (153).

5. The alcohol precipitation tank (2) for extracting traditional Chinese medicine with an automatic residue sensing device according to claim 4, characterized in that: The valve includes: A valve plug (152) is installed at the end of the valve port piston rod (153) and is adapted to the liquid channel; The conical head (151) is connected to the valve plug (152).

6. A method for extracting traditional Chinese medicine, implemented based on a traditional Chinese medicine extraction device with an automatic residue sensing device in an alcohol precipitation tank (2) as described in any one of claims 1-5, characterized in that, include: The multi-stage cylinder (1) retracts while the valve port cylinder extends, causing the valve plug (152) to disengage from the liquid channel. As the multi-stage cylinder (1) continues to descend, the liquid medicine channel descends, and the liquid medicine is discharged through the liquid medicine channel. As the multi-stage cylinder (1) continues to descend, the sensing piston (142) comes into contact with the residue layer (22). The sensing piston (142) is pushed against by the residue and moves. When the sensing piston (142) comes into contact with the residue of the pressure sensing valve (143), it sends a sensing signal to the pneumatic control system. The multi-stage cylinder (1) and the valve port cylinder (153) stop moving. At the same time, the closing spring (155) in the valve port cylinder (153) drives the valve plug (152) to seal the liquid medicine channel.

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