Medicine residue liquid squeezing system

Abstract

The invention provides a medicine residue liquid squeezing system. The medicine residue liquid squeezing system comprises a bearing and positioning mechanism, a pressure plate bin assembly, a driving mechanism, a sealing mechanism, a liquid discharging mechanism and a control part, the sealing mechanism is arranged on the periphery of the pressure plate bin assembly, so that when a pressure plate bin body is located in the pot body, the opening side of the pot body is sealed, and a closed space is formed in the pressure plate bin body and the pot body; the liquid discharging mechanism is communicated with the pressure plate bin body, the liquid discharging mechanism comprises a gas inlet pipeline and a liquid discharging pipeline, the gas inlet pipeline is used for introducing gas into the pressure plate bin body after the closed space is formed, and the liquid discharging pipeline is used for discharging liquid medicine in the pressure plate bin body. The problems that in the prior art, the liquid squeezing efficiency and the liquid medicine recovery rate are low in the traditional Chinese medicine residue liquid separation process are solved.

Description

Technical Field

[0001] This invention relates to the field of traditional Chinese medicine processing technology, and more specifically, to a system for extracting liquid from medicinal residues. Background Technology

[0002] In the production and processing of traditional Chinese medicine, the separation of dregs from the decoction is a key step that affects the purity, yield, and quality of subsequent preparations.

[0003] Currently, the main methods for separating Chinese herbal medicine residue and liquid include natural filtration, centrifugal separation, and mechanical pressing. Natural filtration relies on gravity percolation, which has a long separation cycle and low efficiency, making it difficult to meet the needs of large-scale production. Although centrifugal separation can achieve rapid separation, the equipment cost is high, energy consumption is large, and high-speed rotation can easily lead to the loss of medicinal components, affecting efficacy. Traditional mechanical pressing methods mostly use rigid plates to apply pressure to the residue, which has problems such as insufficient pressing, high residual rate of medicinal liquid, and poor sealing. During the pressing process, the medicinal liquid is prone to leakage due to poor contact surface, which not only reduces the recovery rate of medicinal liquid but also causes cross-contamination and increases cleaning difficulty.

[0004] In other words, the existing technology for separating Chinese medicine residue and liquid has problems with low extraction efficiency and low recovery rate of the liquid. Summary of the Invention

[0005] The main objective of this invention is to provide a medicinal residue extraction system to solve the problems of low extraction efficiency and low medicinal liquid recovery rate in the existing technology of traditional Chinese medicine residue-liquid separation process.

[0006] To achieve the above objectives, the present invention provides a medicinal residue extraction system, comprising: a carrying and positioning mechanism for transporting and carrying a pot containing medicinal residue; a pressure plate assembly disposed above the carrying and positioning mechanism, the pressure plate assembly including a pressure plate body and an extrusion plate, the extrusion plate being located at the bottom of the pressure plate body, and the pressure plate body and / or the extrusion plate being provided with filter holes to allow the medicinal liquid generated after extracting the medicinal residue to flow into the pressure plate body; and a driving mechanism disposed above the pressure plate assembly for driving the pressure plate assembly vertically relative to the carrying and positioning mechanism. The positioning mechanism moves to apply pressure to the dregs inside the pot by the pressing disc; the sealing mechanism is located on the outer periphery of the pressing disc assembly to seal the opening side of the pot when the pressing disc body is inside the pot, forming a sealed space between the pressing disc body and the pot; the draining mechanism is connected to the pressing disc body and includes an air inlet pipe and a draining pipe. The air inlet pipe is used to introduce gas into the pressing disc body after the sealed space is formed, and the draining pipe is used to discharge the liquid medicine inside the pressing disc body; the control unit is connected to the drive mechanism, the bearing positioning mechanism, the sealing mechanism, and the draining mechanism.

[0007] Furthermore, the drainage mechanism also includes: a liquid collection nozzle, which is installed on the squeezing plate and is used to collect the liquid medicine in the pressure plate chamber body; one side of the drainage pipe is connected to the liquid collection nozzle, and the other side of the drainage pipe extends to the outside of the pressure plate chamber body; and a liquid outlet valve, which is installed on the drainage pipe and located outside the pressure plate chamber body, and is used to adjust the on / off state or opening degree of the drainage pipe.

[0008] Furthermore, the drainage mechanism also includes: an air pump, which is located outside the pressure plate chamber body and is used to provide gas into the sealed space; one side of the air inlet pipe is connected to the air pump, and the other side of the air inlet pipe is located inside the pressure plate chamber body; and an air inlet valve, which is located on the air inlet pipe and outside the pressure plate chamber body and is used to adjust the opening or closing of the air inlet pipe.

[0009] Furthermore, the draining mechanism also includes a first air pressure monitoring element, which is installed inside the pressure plate chamber body. The first air pressure monitoring element is used to detect the air pressure value in the sealed space in real time to adjust the working state of the air intake valve so that the air pressure value in the sealed space is kept within the first preset value range.

[0010] Furthermore, the first preset value ranges from 0.4 MPa to 0.6 MPa.

[0011] Furthermore, the sealing mechanism includes an inflatable elastic seal that expands after inflation and presses against the outer wall of the pressure plate chamber body and the inner wall of the pot body on the opening side.

[0012] Furthermore, the sealing mechanism also includes: an inflation port, which is connected to the elastic seal and is used to connect an external air source to inflate the elastic seal; and a second air pressure monitoring device, which is disposed inside the elastic seal and is used to detect the air pressure value inside the elastic seal in real time so that the air pressure value inside the elastic seal is maintained within a second preset value range.

[0013] Furthermore, the second preset value ranges from 0.3 MPa to 0.5 MPa.

[0014] Furthermore, the bearing and positioning mechanism includes: a transport positioning platform for carrying the pot body; a limiting structure disposed on the transport positioning platform for circumferentially limiting the pot body; and a position detection component installed on the outside of the transport positioning platform for detecting the position of the pot body.

[0015] Furthermore, the drive mechanism includes: a mounting frame disposed above the pressure plate chamber body, the mounting frame having multiple through holes; multiple cylinders, each cylinder being mounted on the mounting frame; and multiple guide rods, each guide rod corresponding to a piston rod within one of the cylinders, each guide rod extending downward through the corresponding through hole, the side of the guide rod away from the cylinder being connected to the pressure plate chamber body to drive the pressure plate chamber body to move vertically relative to the bearing positioning mechanism.

[0016] The medicinal residue squeezing system of this invention includes a carrying and positioning mechanism, a pressure plate chamber assembly, a driving mechanism, a sealing mechanism, a draining mechanism, and a control unit. The carrying and positioning mechanism is used to transport and carry the pot containing the medicinal residue. The pressure plate chamber assembly is located above the carrying and positioning mechanism and includes a pressure plate chamber body and a squeezing disc. The squeezing disc is located at the bottom of the pressure plate chamber body, and the pressure plate chamber body and / or the squeezing disc are provided with filter holes to allow the medicinal liquid generated after squeezing the medicinal residue to flow into the pressure plate chamber body. The driving mechanism is located above the pressure plate chamber assembly and is used to drive the pressure plate chamber assembly along... The vertical movement relative to the bearing and positioning mechanism allows the extrusion plate to apply pressure to the dregs inside the pot. The sealing mechanism is located on the outer periphery of the pressure plate chamber assembly to seal the opening side of the pot when the pressure plate chamber body is inside the pot, forming a sealed space between the pressure plate chamber body and the pot. The draining mechanism is connected to the pressure plate chamber body and includes an air inlet pipe and a draining pipe. The air inlet pipe is used to introduce gas into the pressure plate chamber body after the sealed space is formed, and the draining pipe is used to discharge the liquid medicine inside the pressure plate chamber body. The control unit is connected to the drive mechanism, the bearing and positioning mechanism, the sealing mechanism, and the draining mechanism.

[0017] The medicinal residue extraction system of this application includes a bearing and positioning mechanism, a pressure plate assembly, a drive mechanism, a sealing mechanism, a discharge mechanism, and a control unit. The control unit is signal-connected to the drive mechanism, the bearing and positioning mechanism, the sealing mechanism, and the discharge mechanism to coordinate the operation of these mechanisms. The bearing and positioning mechanism is located at the bottom of the medicinal residue extraction system and is used to stably transport and support the pot containing the medicinal residue, providing a transport and positioning platform for subsequent residue-liquid separation. The drive mechanism is located at the top of the medicinal residue extraction system and is used to drive the pressure plate assembly to reciprocate vertically relative to the bearing and positioning mechanism.

[0018] The pressure chamber assembly is located between the bearing and positioning mechanism and the driving mechanism. This assembly applies mechanical pressure to the dregs, achieving initial extraction of the medicinal liquid. Specifically, the pressure chamber assembly is positioned directly above the opening of the pot body. It has a hollow pressure chamber body and a pressing disc at the bottom. Filter holes are evenly distributed on both the pressure chamber body and the pressing disc, significantly enhancing the filtration reliability of the assembly. Under the action of the driving mechanism, the pressure chamber assembly is gradually inserted into the pot body. The pressing disc squeezes the dregs, extracting the medicinal liquid. The extracted liquid then flows through the filter holes into a temporary storage cavity formed inside the pressure chamber body. By appropriately setting the size of the filter holes, dregs can be retained outside the pressure chamber assembly.

[0019] A sealing mechanism surrounds the outer periphery of the pressure chamber body. After the initial mechanical compression by the extrusion plate, the sealing mechanism seals the open side of the pot body, creating a sealed space between the pressure chamber body and the pot interior, effectively isolating the external environment. At this time, the drainage mechanism remains connected to the pressure chamber body. The drainage mechanism includes an air inlet pipe and a drainage pipe that pass through the pressure chamber body, forming independent channels for gas-liquid separation. Specifically, the air inlet pipe introduces gas into the pressure chamber body after the sealed space is formed, creating a positive pressure environment within the sealed space. The secondary compression of the gas squeezes out the residual liquid in the dregs, allowing it to pass through the filter holes on the pressure chamber body and extrusion plate into the pressure chamber body, greatly improving the squeezing efficiency of the dregs and liquid. The drainage pipe efficiently discharges the liquid from the pressure chamber body, ensuring a high recovery rate.

[0020] This application improves the sealing performance, operational stability, and economy of the medicinal residue extraction system, achieving dual extrusion by both mechanical and pneumatic pressure, effectively enhancing extraction efficiency and medicinal liquid recovery rate, and is suitable for the continuous and intelligent operation requirements in the large-scale production of traditional Chinese medicine. Attached Figure Description

[0021] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0022] Figure 1 A schematic diagram of the structure of a drug residue extraction system according to an optional embodiment of the present invention is shown;

[0023] Figure 2 A schematic diagram of the drive mechanism and pressure plate assembly of a medicinal residue extraction system according to an optional embodiment of the present invention is shown.

[0024] Figure 3 A schematic diagram of the mounting frame of the residue extraction system according to an optional embodiment of the present invention is shown;

[0025] Figure 4 A schematic diagram of the pressure chamber assembly of a residue extraction system according to an optional embodiment of the present invention is shown.

[0026] Figure 5 A schematic diagram of the bearing and positioning mechanism and the pot body of the residue extraction system of an optional embodiment of the present invention is shown.

[0027] The above figures include the following reference numerals:

[0028] 10. Bearing and positioning mechanism; 11. Transport positioning platform; 12. Roller; 13. Positioning component; 14. Belt; 15. First limiting structure; 16. Second limiting structure; 17. Position detection component; 20. Pot body; 30. Pressure plate chamber assembly; 31. Pressure plate chamber body; 311. Top cover; 312. Chamber wall; 32. Extrusion plate; 33. Filter hole; 40. Drive mechanism; 41. Mounting bracket; 411. Through hole; 42. Cylinder; 43. Guide rod; 50. Sealing mechanism; 51. Elastic seal; 52. Inflation port; 60. Drainage mechanism; 61. Air inlet pipe; 62. Drainage pipe; 63. Drainage valve. Detailed Implementation

[0029] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0030] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0031] In this invention, unless otherwise stated, directional terms such as "upper," "lower," "top," and "bottom" are generally used in relation to the direction shown in the accompanying drawings, or in relation to the vertical, perpendicular, or gravitational direction of the component itself; similarly, for ease of understanding and description, "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not intended to limit this invention.

[0032] To address the problems of low extraction efficiency and low liquid recovery rate in the existing traditional Chinese medicine residue-liquid separation process, this invention provides a traditional Chinese medicine residue extraction system.

[0033] like Figures 1 to 5As shown, the medicinal residue squeezing system includes a carrying and positioning mechanism 10, a pressure plate chamber assembly 30, a drive mechanism 40, a sealing mechanism 50, a drainage mechanism 60, and a control unit. The carrying and positioning mechanism 10 is used to transport and carry the pot body 20 containing medicinal residue. The pressure plate chamber assembly 30 is located above the carrying and positioning mechanism 10. The pressure plate chamber assembly 30 includes a pressure plate chamber body 31 and a squeezing plate 32. The squeezing plate 32 is located at the bottom of the pressure plate chamber body 31, and the pressure plate chamber body 31 and / or the squeezing plate 32 are provided with filter holes 33 so that the medicinal liquid generated after squeezing the medicinal residue flows into the pressure plate chamber body 31. The drive mechanism 40 is located above the pressure plate chamber assembly 30 and is used to drive the pressure plate chamber assembly 30 in the vertical direction. The bearing positioning mechanism 10 moves to apply pressure to the dregs inside the pot body 20 by the extrusion plate 32; the sealing mechanism 50 is disposed on the outer periphery of the pressure plate chamber assembly 30 to seal the opening side of the pot body 20 when the pressure plate chamber body 31 is inside the pot body 20, forming a sealed space inside the pressure plate chamber body 31 and the pot body 20; the draining mechanism 60 is connected to the pressure plate chamber body 31, and the draining mechanism 60 includes an air inlet pipe 61 and a draining pipe 62. The air inlet pipe 61 is used to introduce gas into the pressure plate chamber body 31 after the sealed space is formed, and the draining pipe 62 is used to discharge the liquid medicine inside the pressure plate chamber body 31; the control unit is connected to the drive mechanism 40, the bearing positioning mechanism 10, the sealing mechanism 50 and the draining mechanism 60.

[0034] The dregs extraction system of this application includes a bearing and positioning mechanism 10, a pressure plate assembly 30, a drive mechanism 40, a sealing mechanism 50, a discharge mechanism 60, and a control unit. The control unit is signal-connected to the drive mechanism 40, the bearing and positioning mechanism 10, the sealing mechanism 50, and the discharge mechanism 60 to coordinate the operation of these mechanisms. The bearing and positioning mechanism 10 is located at the bottom of the dregs extraction system and is used to stably transport and support the pot body 20 containing dregs, providing a transport and positioning platform 11 for subsequent dregs-liquid separation. The drive mechanism 40 is located at the top of the dregs extraction system and is used to drive the pressure plate assembly 30 to reciprocate vertically relative to the bearing and positioning mechanism 10.

[0035] The pressure chamber assembly 30 is located between the bearing and positioning mechanism 10 and the driving mechanism 40. The pressure chamber assembly 30 can apply mechanical extrusion force to the dregs, achieving initial extrusion of the medicinal liquid. Specifically, the pressure chamber assembly 30 is positioned directly above the opening side of the pot body 20. The pressure chamber assembly 30 has a hollow pressure chamber body 31 and an extrusion plate 32 located at the bottom of the pressure chamber body 31. Filter holes 33 are evenly distributed on the pressure chamber body 31 and the extrusion plate 32, significantly enhancing the filtration reliability of the pressure chamber assembly 30. Under the action of the driving mechanism 40, the pressure chamber assembly 30 is gradually inserted downwards into the pot body 20. The extrusion plate 32 extrudes the dregs, squeezing out the medicinal liquid. The extruded medicinal liquid then flows through the filter holes 33 into the temporary storage cavity formed inside the pressure chamber body 31. Simultaneously, by appropriately setting the size of the filter holes 33, the dregs can be intercepted outside the pressure chamber assembly 30.

[0036] A sealing mechanism 50 is arranged around the outer periphery of the pressure chamber body 31. After the initial mechanical extrusion by the extrusion plate 32, the sealing mechanism 50 can seal the opening side of the pot body 20, so that the pressure chamber body 31 and the interior of the pot body 20 together form a sealed space, effectively isolating the external environment. At this time, the draining mechanism 60 remains connected to the pressure chamber body 31. The draining mechanism 60 includes an air inlet pipe 61 and a drain pipe 62 that pass through the pressure chamber body 31, forming an independent channel for gas-liquid separation. Specifically, the air inlet pipe 61 is used to introduce gas into the pressure chamber body 31 after the sealed space is formed, thereby creating a positive pressure environment in the sealed space. The secondary extrusion of the gas can squeeze out the liquid medicine remaining in the dregs, allowing it to enter the pressure chamber body 31 through the filter holes 33 on the pressure chamber body 31 and the extrusion plate 32, greatly improving the extrusion efficiency of the dregs and liquid medicine. The draining pipe 62 can efficiently discharge the liquid medicine in the pressure chamber body 31, ensuring the recovery rate of the liquid medicine.

[0037] This application improves the sealing performance, operational stability, and economy of the medicinal residue extraction system, achieving dual extrusion by both mechanical and pneumatic pressure, effectively enhancing extraction efficiency and medicinal liquid recovery rate, and is suitable for the continuous and intelligent operation requirements in the large-scale production of traditional Chinese medicine.

[0038] In such Figure 2 , Figure 4 In the illustrated embodiment, filter holes 33 can be provided on both the pressure chamber body 31 and the extrusion plate 32 to achieve efficient discharge of the medicinal liquid. In some other optional embodiments, filter holes 33 can be provided only on the pressure chamber body 31 or only on the extrusion plate 32, depending on the characteristics of the medicinal residue and the requirements for residue-liquid separation.

[0039] In addition, the pressure chamber body 31 includes a top cover 311 and a chamber wall 312. The chamber wall 312 has a vertical cylindrical structure. The top cover 311 and the pressing disc 32 are respectively located at both ends of the chamber wall 312. A sealing mechanism 50 is provided on the outer wall of the chamber wall 312 near the top cover 311. Optionally, the top cover 311 and the chamber wall 312 can be sealed together by any of the following methods: threaded connection, snap-fit ​​structure, or quick-release flange, which facilitates cleaning, maintenance, and replacement.

[0040] It should be noted that when the filter holes 33 are set on the pressure plate chamber body 31, the filter holes 33 should be evenly distributed on the lower part of the chamber wall 312 of the pressure plate chamber body 31, and the filter holes 33 should be located below the sealing mechanism 50, so as to ensure that the pressure plate chamber body 31 and the inside of the pot body 20 form a sealed space, prevent gas leakage, and improve the squeezing efficiency and sealing reliability.

[0041] In some alternative embodiments, the sealing mechanism 50 includes an inflatable elastic seal 51 that expands after inflation and presses against the outer wall of the pressure plate chamber body 31 and the inner wall of the pot body 20 on the opening side.

[0042] The elastic seal 51 is disposed on the outer periphery of the chamber wall 312. After the pressure plate chamber body 31 moves down into the pot body 20 and completes the initial compression, the elastic seal 51 is inflated by an external air source, expanding radially outward and compressing the gap between the outer wall of the sealing chamber wall 312 and the inner wall of the pot body 20 opening side, ultimately forming a sealed space. The elastic seal 51 can automatically adapt to irregular or changing mating surfaces to form a continuous, leak-free sealing barrier, effectively solving the problem of unreliable sealing caused by structural tolerances or deformation. This allows the pressure plate chamber body 31 and the interior of the pot body 20 to form a stable sealed space, providing a reliable airtight environment for secondary gas compression and efficient discharge of the liquid, significantly reducing liquid residue and improving extrusion efficiency.

[0043] It should be noted that the inflatable elastic seal 51 can effectively prevent gas leakage and liquid leakage during the gas pressure separation process. However, the above-mentioned elastic seal 51 is not the only embodiment. Any other seal that can achieve the same sealing function, maintain reliable sealing under high pressure, and has corrosion resistance and good elasticity, such as silicone sealing rings, fluororubber O-rings, hydraulic expansion sealing sleeves, or intelligent deformable polymer sealing materials, can be used as equivalent alternatives to the inflatable elastic seal 51. As long as it can form a sealed space after the pressure plate assembly 30 is pressed into place and does not chemically react with the Chinese medicine ingredients or contaminate the liquid, it should be included within the scope of protection of this application.

[0044] In some optional embodiments, the sealing mechanism 50 further includes an inflation port 52 and a second pressure monitoring device. The inflation port 52 is connected to the elastic seal 51 and is used to connect an external air source to inflate the elastic seal 51. The second pressure monitoring device is disposed inside the elastic seal 51 and is used to detect the pressure value inside the elastic seal 51 in real time so that the pressure value inside the elastic seal 51 is maintained within a second preset value range.

[0045] The inflation port 52 of the sealing mechanism 50 is connected to the elastic seal 51. The inflation port 52 can connect to an external air source to stably supply air into the elastic seal 51, ensuring that a sealed space is quickly established through the elastic seal 51 after the initial compression is completed. The second air pressure monitoring device is installed inside the elastic seal 51, which can collect the air pressure value inside the elastic seal 51 in real time and feed the signal back to the control unit. The control unit can dynamically adjust the air supply of the inflation port 52 according to the preset second preset value range to maintain the stability of the air pressure inside the elastic seal 51, prevent leakage or overpressure damage caused by air pressure fluctuations, thereby ensuring the airtightness of the sealed space and improving the discharge efficiency of the liquid medicine under positive pressure.

[0046] Optionally, the second preset value ranges from 0.3MPa to 0.5MPa. Within the second preset value range, the elastic seal 51 can fully expand and achieve a reliable seal, while avoiding deformation and failure of the elastic seal 51 or uneven stress on the pot body 20 due to excessive pressure, thus ensuring the safety and sealing stability of the separation process.

[0047] In some optional embodiments, the drainage mechanism 60 further includes an air pump, an air inlet valve, a first air pressure monitoring device, a liquid collection suction head, and a liquid outlet valve 63 to realize secondary gas extrusion and drainage of the drug residue squeezing system. The control unit is connected to the air pump, air inlet valve, first air pressure monitoring device, and liquid outlet valve 63 via signals.

[0048] Specifically, the air pump is located outside the pressure plate chamber body 31. The air pump is used to provide gas into the sealed space. One side of the air inlet pipe 61 is connected to the air pump, and the other side of the air inlet pipe 61 is located inside the pressure plate chamber body 31. The air inlet valve is located on the air inlet pipe 61 and outside the pressure plate chamber body 31. The air inlet valve is used to adjust the on / off state or opening degree of the air inlet pipe 61.

[0049] An air pump is located outside the pressure plate chamber body 31, and supplies gas stably to the sealed space through the air inlet pipe 61, providing a controllable positive pressure power source for the discharge of the liquid medicine, thus avoiding pressure fluctuations. The air inlet pipe 61 of the discharge mechanism 60 passes through the top cover 311 of the pressure plate chamber body 31, and both ends of the air inlet pipe 61 are connected to the air pump and the pressure plate chamber body 31, respectively, so that the gas from the air pump passes through the air inlet pipe 61 into the sealed space, forming an independent, closed, and leak-free gas delivery channel.

[0050] The air intake valve is installed on the section of the air intake pipe 61 located outside the pressure plate chamber body 31. The air intake valve can be adjusted by the control unit to regulate the opening or closing of the air intake pipe 61, thereby achieving dynamic control of the air pressure in the sealed space. This ensures that after the medicine residue is squeezed, the gas enters the pressure plate chamber body 31 slowly at a suitable flow rate and pressure, pushing the medicine liquid through the filter hole 33 for efficient discharge. At the same time, it prevents secondary blockage of the medicine residue or failure of the elastic seal 51 due to sudden changes in air pressure, significantly improving the thoroughness of medicine liquid separation and the consistency of operation.

[0051] Specifically, the first air pressure monitoring device is installed inside the pressure plate chamber body 31, which can detect the air pressure value in the sealed space in real time to adjust the working state of the air intake valve so that the air pressure value in the sealed space is kept within the first preset value range.

[0052] The first air pressure monitoring device is installed inside the pressure plate chamber body 31. It can directly detect real-time air pressure changes in the sealed space and feed the detection signal back to the control unit. The control unit dynamically adjusts the opening of the air inlet valve according to the preset first value range, thereby accurately controlling the gas flow into the air inlet pipe 61. This ensures that the air pressure in the sealed space is stably maintained within the first preset value range, avoiding poor drainage or backflow of the liquid due to air pressure fluctuations. At the same time, setting the first air pressure monitoring device inside the pressure plate chamber body 31 is closer to the actual air pressure environment, effectively avoiding measurement errors caused by external sensors due to pipe pressure loss or temperature gradients. This significantly enhances the response speed and reliability of the air pressure value in the sealed space, thereby optimizing the overall liquid extraction efficiency and liquid recovery rate.

[0053] Optionally, the first preset value range is between 0.4 MPa and 0.6 MPa, which ensures consistent parameters for each separation process while ensuring the squeezing efficiency, thus greatly reducing batch-to-batch differences.

[0054] Specifically, a liquid collection nozzle is installed on the squeezing plate 32. The liquid collection nozzle is used to collect the liquid medicine in the pressure plate chamber body 31. One side of the drain pipe 62 is connected to the liquid collection nozzle, and the other side of the drain pipe 62 extends to the outside of the pressure plate chamber body 31. The liquid outlet valve 63 is installed on the drain pipe 62 and located outside the pressure plate chamber body 31. The liquid outlet valve 63 is used to adjust the opening or closing of the drain pipe 62.

[0055] The liquid collection nozzle is installed inside the pressure chamber body 31 and covers the extrusion plate 32, ensuring that the nozzle is flush against the bottom surface of the extrusion plate 32. The nozzle has a hollow flow-guiding structure, allowing it to directly collect the liquid that seeps through the filter holes 33 of the extrusion plate 32. This ensures efficient flow of the liquid into the nozzle, preventing it from stagnating or accumulating at the bottom of the pressure chamber body 31. Simultaneously, one end of the drain pipe 62 connects to the side of the nozzle furthest from the extrusion plate 32, forming a liquid flow channel. The other end of the drain pipe 62 extends through the top cover 311 of the pressure chamber body 31 to the outside, allowing the liquid to be directionally discharged and significantly improving the liquid recovery rate.

[0056] The discharge valve 63 is installed on the section of the discharge pipe 62 located outside the pressure chamber body 31. The control unit can adjust the discharge valve 63 to regulate the opening or closing of the discharge pipe 62, thereby controlling the timing and flow rate of the discharged liquid, improving the reliability and ease of operation of the residue extraction system. More specifically, when the sealed space is maintained within the first preset value range, the first air pressure monitoring device sends a signal to the control unit, which automatically triggers the opening of the discharge valve 63, allowing the liquid to be stably discharged through the collection suction head and the discharge pipe 62. The discharge pipe 62 has a built-in flow detection device that can detect the flow rate of the liquid in the discharge pipe 62. After the discharge is completed, a feedback signal is sent to the control unit, which automatically triggers the closing of the discharge valve 63.

[0057] In some optional embodiments, the carrying and positioning mechanism 10 includes a transport positioning platform 11, a limiting structure, and a position detection element 17. The transport positioning platform 11 is used to carry the pot body 20. The limiting structure is disposed on the transport positioning platform 11 and is used to limit the pot body 20 in the circumferential direction. The position detection element 17 is installed on the outside of the transport positioning platform 11 and is used to detect the position of the pot body 20.

[0058] The transport positioning platform 11 can stably support the pot body 20 containing the dregs, ensuring that the pot body 20 maintains a horizontal and positional reference during transport and liquid extraction. A limiting structure is set on the transport positioning platform 11 to circumferentially limit the pot body 20, preventing it from shifting or rotating during the downward movement of the pressure plate assembly 30, thereby avoiding failure of the elastic seal 51 due to the eccentric position of the pot body 20.

[0059] It should be noted that, as Figure 5 In the specific embodiment shown, the bottom of the transport positioning platform 11 has multiple parallel rollers 12. Positioning members 13 are connected to both sides of each roller 12 along the axial direction. A motor drives the multiple rollers 12 to rotate via a belt 14, thereby causing displacement of the transport positioning platform 11 and the pot body 20 on the transport positioning platform 11. It should be noted that, as... Figure 5In the specific embodiment shown, the limiting structure specifically includes a first limiting structure 15 and a second limiting structure 16, and there are two of each of the first limiting structure 15 and the second limiting structure 16.

[0060] Specifically, the two first limiting structures 15 are symmetrically and fixedly set on the transport positioning platform 11. The minimum distance between the two first limiting structures 15 is slightly larger than the diameter of the pot body 20, ensuring that the pot body 20 can be smoothly placed in, and at the same time forming a preliminary constraint on the pot body 20 in the horizontal direction to prevent the pot body 20 from shifting.

[0061] Specifically, the second limiting structure 16 is arranged perpendicular to the first limiting structure 15, and the second limiting structure 16 is symmetrically and fixedly mounted on the transport positioning platform 11. The minimum distance between the two second limiting structures 16 is slightly larger than the diameter of the pot body 20, further preventing the pot body 20 from shifting. In other words, the first limiting structure 15 and the second limiting structure 16 can surround the pot body 20, achieving circumferential limiting of the pot body 20.

[0062] The position detection component 17 is specifically installed on the positioning component 13. It can monitor in real time whether the pot body 20 has accurately reached the preset position and feed the position signal back to the control unit. The control unit only starts the drive mechanism 40 after confirming that the pot body 20 is fully in place, so that the pressure plate chamber body 31 and the extrusion plate 32 are accurately moved into the pot body 20, realizing precise bearing, stable constraint and intelligent positioning coordinated control of the pot body 20. That is to say, when the transport positioning platform 11 moves into the preset position, the central axis of the pot body 20 coincides with the central axis of the pressure plate chamber assembly 30, and the position detection component 17 on the positioning component 13 sends a signal to the control unit to start the drive mechanism 40.

[0063] In some alternative embodiments, such as Figure 2 and Figure 3 As shown, the drive mechanism 40 includes a mounting frame 41, multiple cylinders 42, and multiple guide rods 43. The mounting frame 41 is located above the pressure plate chamber body 31 and has multiple through holes 411. The multiple cylinders 42 are respectively mounted on the mounting frame 41. The multiple guide rods 43 correspond one-to-one with the piston rods in the multiple cylinders 42. Each guide rod 43 extends downward through the corresponding through hole 411. The side of the guide rod 43 away from the cylinder 42 is connected to the pressure plate chamber body 31 to drive the pressure plate chamber body 31 to move vertically relative to the bearing positioning mechanism 10.

[0064] The drive mechanism 40 has a mounting frame 41, multiple cylinders 42, and multiple guide rods 43. The mounting frame 41 is positioned above the pressure plate chamber body 31, and the multiple cylinders 42 are respectively mounted on the mounting frame 41. The piston rod in each cylinder 42 is connected to the corresponding guide rod 43. The multiple guide rods 43 extend downward through the through hole 411 of the mounting frame 41 and connect to the pressure plate chamber body 31. That is, when the drive mechanism 40 is working, the piston rod in the cylinder 42 drives the guide rod 43 to move vertically through the through hole 411, effectively constraining the movement trajectory of the pressure plate chamber body 31 in the vertical direction, avoiding the displacement or vibration of the pressure plate chamber body 31 due to uneven force during the extrusion process, and ensuring that the extrusion plate 32 and the pot body 20 always maintain vertical and centered contact, thereby improving the uniformity and stability of extrusion.

[0065] It should be noted that the through hole 411 of the mounting bracket 41 is not only for the guide rod 43 to pass through, but also for the drain pipe 62 to pass through.

[0066] It should be noted that the vertical direction refers to the direction perpendicular to the horizontal plane, that is, as shown below. Figure 1 The direction shown is either from top to bottom or from bottom to top.

[0067] The working principle of the drug residue extraction system in this application is as follows:

[0068] The pot body 20 containing the dregs is placed on the transport positioning platform 11 of the bearing positioning mechanism 10. After the position detection component 17 detects that the pot body 20 has reached the preset position, the control unit starts the drive mechanism 40.

[0069] The cylinder 42 drives the piston rod to extend, which in turn moves the guide rod 43 and the pressure plate chamber assembly 30 in the vertical direction. The extrusion plate 32 descends and extrudes the dregs in the pot body 20 until the pressure plate chamber body 31 can no longer move down due to the support of the dregs. At this time, the liquid medicine flows into the pressure plate chamber body 31 through the filter hole 33.

[0070] The control unit controls the external air source to inflate the elastic seal 51 through the inflation port 52. After inflation, the elastic seal 51 expands and is squeezed and sealed between the outer wall of the pressure plate chamber body 31 and the inner wall of the opening side of the pot body 20, forming a sealed space.

[0071] The second air pressure monitoring device detects the air pressure value inside the elastic seal 51 in real time and feeds the signal back to the control unit. The control unit dynamically adjusts the air supply of the inflation port 52 to keep the air pressure value inside the elastic seal 51 within the second preset value range of 0.3MPa to 0.5MPa, so as to ensure stable sealing.

[0072] After the sealed space is formed, the control unit controls the air pump to introduce gas into the pressure plate chamber body 31 through the air intake pipe 61. The first air pressure monitoring device detects the air pressure value in the sealed space in real time and feeds the signal back to the control unit. The control unit dynamically adjusts the opening of the air intake valve according to the signal to keep the air pressure value in the sealed space within the first preset value range of 0.4MPa to 0.6MPa.

[0073] When the discharge valve 63 of the drainage mechanism 60 is opened, the liquid medicine in the pressure plate chamber 31 is pushed to the collection suction head and discharged through the drainage pipe 62 under the action of air pressure.

[0074] When no medicine is discharged from the drain pipe 62, the control unit sequentially closes the air inlet valve, closes the liquid outlet valve 63, and opens the venting channel of the elastic seal 51. After the elastic seal 51 contracts, the control unit controls the cylinder 42 to retract the piston rod, so that the guide rod 43 drives the pressure plate chamber assembly 30 to reset vertically upward, completing one medicine residue squeezing process.

[0075] As can be seen from the above description, the embodiments of the present invention achieve the following technical effects:

[0076] 1. The dregs extraction system of this application comprises a bearing and positioning mechanism 10, a pressure plate assembly 30, a drive mechanism 40, a sealing mechanism 50, a discharge mechanism 60, and a control unit. The control unit is signal-connected to the drive mechanism 40, the bearing and positioning mechanism 10, the sealing mechanism 50, and the discharge mechanism 60 to coordinate the operation of the aforementioned mechanisms. The bearing and positioning mechanism 10 is located at the bottom of the dregs extraction system and is used to stably transport and support the pot body 20 containing dregs, providing a transport and positioning platform 11 for subsequent dregs-liquid separation. The drive mechanism 40 is located at the top of the dregs extraction system and is used to drive the pressure plate assembly 30 to reciprocate vertically relative to the bearing and positioning mechanism 10.

[0077] 2. The pressure plate assembly 30 is located between the bearing and positioning mechanism 10 and the driving mechanism 40. The pressure plate assembly 30 can apply mechanical extrusion force to the dregs, realizing the initial extrusion of the medicinal liquid. Specifically, the pressure plate assembly 30 is placed directly above the opening side of the pot body 20. The pressure plate assembly 30 has a hollow pressure plate body 31 and an extrusion plate 32 set at the bottom of the pressure plate body 31. Filter holes 33 are evenly opened on the pressure plate body 31 and the extrusion plate 32, which can significantly enhance the filtration reliability of the pressure plate assembly 30. Under the action of the driving mechanism 40, the pressure plate assembly 30 is gradually inserted into the pot body 20. The extrusion plate 32 can squeeze the dregs to extrude the medicinal liquid. The extruded medicinal liquid then flows into the temporary storage cavity formed inside the pressure plate body 31 through the filter holes 33. At the same time, by reasonably setting the size of the filter holes 33, the dregs can be intercepted outside the pressure plate assembly 30.

[0078] 3. A sealing mechanism 50 is arranged around the outer periphery of the pressure chamber body 31. After the initial mechanical extrusion by the extrusion plate 32, the sealing mechanism 50 can seal the opening side of the pot body 20, so that the pressure chamber body 31 and the interior of the pot body 20 together form a sealed space, effectively isolating the external environment. At this time, the draining mechanism 60 remains connected to the pressure chamber body 31. The draining mechanism 60 includes an air inlet pipe 61 and a drain pipe 62 passing through the pressure chamber body 31, which form an independent channel for gas-liquid separation. Specifically, the air inlet pipe 61 is used to introduce gas into the pressure chamber body 31 after the sealed space is formed, thereby creating a positive pressure environment in the sealed space. The secondary extrusion of the gas can squeeze out the liquid medicine remaining in the dregs, allowing it to enter the pressure chamber body 31 through the filter holes 33 on the pressure chamber body 31 and the extrusion plate 32, greatly improving the extrusion efficiency of the dregs and liquid medicine. The draining pipe 62 can efficiently discharge the liquid medicine in the pressure chamber body 31, ensuring the recovery rate of the liquid medicine.

[0079] 4. This application improves the sealing performance, operational stability, and economy of the medicinal residue extraction system, and realizes dual extrusion by mechanical and pneumatic pressure, effectively improving the extraction efficiency and medicinal liquid recovery rate, and is suitable for the continuous and intelligent operation needs in the large-scale production of traditional Chinese medicine.

[0080] Obviously, the embodiments described above are merely some, not all, embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort should fall within the scope of protection of the present invention.

[0081] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0082] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.

[0083] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A system for extracting liquid from medicinal residue, characterized in that, include: A carrying and positioning mechanism (10) is used to transport and carry the pot body (20) containing the dregs. The pressure chamber assembly (30) is disposed above the bearing positioning mechanism (10). The pressure chamber assembly (30) includes a pressure chamber body (31) and a pressing disc (32). The pressing disc (32) is located at the bottom of the pressure chamber body (31), and the pressure chamber body (31) and / or the pressing disc (32) are provided with filter holes (33) so that the liquid medicine generated after pressing the medicine residue flows into the pressure chamber body (31). A drive mechanism (40) is disposed above the pressure plate chamber assembly (30). The drive mechanism (40) is used to drive the pressure plate chamber assembly (30) to move in the vertical direction relative to the bearing positioning mechanism (10) so that the extrusion plate (32) applies pressure to the dregs in the pot body (20). A sealing mechanism (50) is provided on the outer periphery of the pressure plate chamber assembly (30) so that when the pressure plate chamber body (31) is located inside the pot body (20), the opening side of the pot body (20) is sealed, forming a sealed space inside the pressure plate chamber body (31) and the pot body (20). The liquid discharge mechanism (60) is connected to the pressure plate chamber body (31). The liquid discharge mechanism (60) includes an air inlet pipe (61) and a liquid discharge pipe (62). The air inlet pipe (61) is used to introduce gas into the pressure plate chamber body (31) after the sealed space is formed. The liquid discharge pipe (62) is used to discharge the liquid medicine in the pressure plate chamber body (31). The control unit is connected to the drive mechanism (40), the bearing positioning mechanism (10), the sealing mechanism (50), and the draining mechanism (60).

2. The residue extraction system according to claim 1, characterized in that, The draining mechanism (60) further includes: A liquid collection nozzle is provided on the extrusion plate (32) and is used to collect the liquid medicine in the pressure plate chamber body (31). One side of the drain pipe (62) is connected to the liquid collection nozzle, and the other side of the drain pipe (62) extends to the outside of the pressure plate chamber body (31). The liquid outlet valve (63) is installed on the liquid outlet pipe (62) and located outside the pressure plate chamber body (31). The liquid outlet valve (63) is used to adjust the on / off state or opening degree of the liquid outlet pipe (62).

3. The residue extraction system according to claim 2, characterized in that, The draining mechanism (60) further includes: An air pump is provided outside the pressure plate chamber body (31). The air pump is used to provide gas into the sealed space. One side of the air inlet pipe (61) is connected to the air pump, and the other side of the air inlet pipe (61) is located inside the pressure plate chamber body (31). An intake valve is provided on the intake pipe (61) and located outside the pressure plate chamber body (31). The intake valve is used to adjust the on / off state or opening degree of the intake pipe (61).

4. The residue extraction system according to claim 3, characterized in that, The draining mechanism (60) further includes a first air pressure monitoring device, which is disposed inside the pressure plate chamber body (31). The first air pressure monitoring device is used to detect the air pressure value in the sealed space in real time to adjust the working state of the air inlet valve so that the air pressure value in the sealed space is kept within a first preset value range.

5. The residue extraction system according to claim 4, characterized in that, The first preset value ranges from 0.4 MPa to 0.6 MPa.

6. The residue extraction system according to claim 1, characterized in that, The sealing mechanism (50) includes an inflatable elastic seal (51) that expands after inflation and presses against the outer wall of the pressure plate chamber body (31) and the inner wall of the pot body (20) on the opening side.

7. The residue extraction system according to claim 6, characterized in that, The sealing mechanism (50) further includes: An inflation port (52) is connected to the elastic seal (51) and is used to connect an external air source to inflate the elastic seal (51). The second air pressure monitoring device is disposed inside the elastic seal (51). The second air pressure monitoring device is used to detect the air pressure value inside the elastic seal (51) in real time so that the air pressure value inside the elastic seal (51) is kept within a second preset value range.

8. The residue extraction system according to claim 7, characterized in that, The second preset value ranges from 0.3 MPa to 0.5 MPa.

9. The residue extraction system according to any one of claims 1 to 8, characterized in that, The bearing positioning mechanism (10) includes: Transportation positioning platform (11), the transportation positioning platform (11) is used to support the pot body (20); A limiting structure is provided on the transport positioning platform (11) and is used to limit the pot body (20) circumferentially. Position detection component (17) is installed on the outside of the transport positioning platform (11) and is used to detect the position of the pot body (20).

10. The residue extraction system according to any one of claims 1 to 8, characterized in that, The drive mechanism (40) includes: Mounting bracket (41) is disposed above the pressure plate chamber body (31) and has multiple through holes (411). Multiple cylinders (42) are respectively mounted on the mounting bracket (41); Multiple guide rods (43) are provided, each of which corresponds to a piston rod in a cylinder (42). Each guide rod (43) extends downward through the corresponding through hole (411). The side of the guide rod (43) away from the cylinder (42) is connected to the pressure plate chamber body (31) to drive the pressure plate chamber body (31) to move relative to the bearing positioning mechanism (10) in the vertical direction.

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