CN109107219A - Automate Chinese medicine extracting tank - Google Patents
Automate Chinese medicine extracting tank Download PDFInfo
- Publication number
- CN109107219A CN109107219A CN201810850340.1A CN201810850340A CN109107219A CN 109107219 A CN109107219 A CN 109107219A CN 201810850340 A CN201810850340 A CN 201810850340A CN 109107219 A CN109107219 A CN 109107219A
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- Prior art keywords
- extracting
- resistance
- dregs
- decoction
- pressure sensor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D11/00—Solvent extraction
- B01D11/02—Solvent extraction of solids
- B01D11/0215—Solid material in other stationary receptacles
- B01D11/0223—Moving bed of solid material
- B01D11/0234—Moving bed of solid material using other slow rotating arms or elements, whereby the general transport direction of the solids is not parallel to the rotation axis, e.g. perpendicular
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Extraction Or Liquid Replacement (AREA)
Abstract
The present invention discloses automation Chinese medicine extracting tank, solves prior art extracting solution and the dregs of a decoction share one outlet, discharge medical fluid dregs of a decoction trouble, pressure sensor can cause monitoring signals inaccuracy to the problem low there are security risk and extraction efficiency because of temperature drift.The present invention includes extracting can body, driving motor, feed pipe, liquid auxiliary materials inlet pipe, solid-state auxiliary material inlet pipe, agitating shaft, auger blade, filter screen, magnetic float liquidlevel meter, electric cabinet, liquid outlet, dregs of a decoction outlet, dregs of a decoction outlet portal, cold water inlet, hot water inlet pipe, first flow valve, second flow valve, third flow valve, temperature sensor, pressure sensor and temperature-compensation circuit.Medical fluid dregs of a decoction expulsion efficiency of the present invention is high, and discharge is convenient, and extraction efficiency is high, high degree of automation, the influence that pressure sensor temperature drift can be effectively eliminated, keeps pressure monitoring signal more accurate, so as to effectively eliminate because of the inaccurate bring security risk of pressure signal.
Description
Technical field
The present invention relates to automation Chinese medicine extracting tanks.
Background technique
Extractor is common leaching in medication chemistry, the leaching particularly suitable for plant product ingredient
It extracts.Traditional Chinese medicine extracting tank generally sets out mouth in the bottom of extractor, and exit sets strainer, after having extracted, first filters out
Extracting solution later takes out strainer so that the dregs of a decoction are discharged, and it is perishable that strainer frequently retracts installation, and retracts installation trouble；Meanwhile it is existing
The extractor for having technology is usually to put into medicinal material, auxiliary material and extracting solution slowly to infiltrate in extractor to extract, and extraction efficiency is extremely low；
Prior art sensor can generate drift because of ambient temperature, cause monitoring signals inaccurate.
Summary of the invention
The technical problem to be solved by the present invention is providing automation Chinese medicine extracting tank, prior art extracting solution and medicine are solved
Slag shares one outlet, discharge medical fluid dregs of a decoction trouble, pressure sensor can cause because of temperature drift monitoring signals inaccuracy to
There are the low problems of security risk and extraction efficiency.
To achieve the above object, The technical solution adopted by the invention is as follows:
Chinese medicine extracting tank is automated, including extracts can body, is set to extractor body top center rotation driving electricity
Machine set on the extractor body top and the feed pipe circumferentially around driving motor distribution, liquid auxiliary materials inlet pipe and is consolidated
State auxiliary material inlet pipe is set to the agitating shaft connecting in the extraction can body and with the driving motor vertically, is equally spaced in institute
It states on agitating shaft and inclination auger blade directed downwardly, inclination is set to the arc filter screen of lower part in the extraction can body
Net, set on it is described extract can body tank skin lower part magnetic float liquidlevel meter, and be set to the extraction can body tank skin on and with
The electric cabinet that the driving motor is electrically connected；The bottom for extracting can body is offered in reverse frustoconic and in its least significant end
Liquid outlet, the least significant end of the filter screen are flushed with the top opening for extracting can body truncated cone-shaped bottom, the extractor master
Body offers dregs of a decoction outlet at the least significant end for being located at the filter screen, and is equipped with salable pass in the dregs of a decoction exit
The dregs of a decoction outlet portal of dregs of a decoction outlet is closed, the two sides of the feed pipe are connected separately with cold water inlet and hot water inlet pipe, described
The first flow being electrically connected with the electric cabinet is respectively equipped on liquid auxiliary materials inlet pipe, the cold water inlet and hot water inlet pipe
Valve, second flow valve and third flow valve；The tank skin inner cavity for extracting can body is equipped with electrically to be connected with the electric cabinet respectively
The temperature sensor and pressure sensor connect, a temperature-compensation circuit is connected on the pressure sensor, and the temperature is mended
Repaying circuit includes first resistor R1, second resistance R2,3rd resistor R3, potentiometer WZ, post-amplifier U1 and as temperature
The diode D1 of compensation, the cathode interface of the pressure sensor are connect with the first resistor R1 and potentiometer WZ being serially connected,
The anode interface of the pressure sensor is connect with second resistance R2 parallel with one another and 3rd resistor R3, diode D1 and
Two resistance R2 series connection, the non-inverting input terminal of post-amplifier U1 are connect with pressure sensor, the anti-phase input of post-amplifier U1
End is connect with potentiometer WZ and second resistance R2, and the output end of post-amplifier U1 is connect with filter circuit；The extractor master
Body top offers the interior form for observing the extractor body interior situation, and the tank skin for extracting can body is bilayer
Structure, and on the top for extracting can body equipped with the inlet tube being connected to the inner cavity of the double-layer structure tank skin, while
The lower part for extracting can body is equipped with the outlet tube that be connected to the inner cavity of the double-layer structure tank skin, the inlet tube and it is described out
The first solenoid valve being electrically connected with the electric cabinet and second solenoid valve are respectively equipped in liquid pipe.
Further, the temperature-compensation circuit further includes the 4th resistance R4, the 5th resistance R5, the 6th resistance R6, described
4th resistance R4 is connected between pressure sensor and the non-inverting input terminal of post-amplifier U1, and the 5th resistance R5 is connected to
Between potentiometer WZ, second resistance R2 and the inverting input terminal of post-amplifier U1, the both ends of the 6th resistance R6 respectively with
The inverting input terminal connection of the output end and post-amplifier U1 of post-amplifier U1.
Further, be connected with extracting solution efferent duct on the liquid outlet, the extracting solution efferent duct be equipped with it is described
The third solenoid valve that electric cabinet is electrically connected.
Further, the extractor bottom part body is circumferentially uniformly distributed there are three support leg.
Further, the electric cabinet is SIEMENS PLC S7-400 control cabinet.
Compared with prior art, the invention has the following advantages:
(1) the configuration of the present invention is simple, design is scientific and reasonable, easy to use, the medical fluid dregs of a decoction divide mouth to be discharged, and expulsion efficiency is high,
Discharge is convenient, and extraction efficiency is high, and high degree of automation can effectively eliminate the influence of pressure sensor temperature drift, make to press
Power monitoring signals are more accurate, so as to effectively eliminate because of the inaccurate bring security risk of pressure signal.
(2) present invention sets driving motor in extractor body top, and connect extracting to set in can body with driving motor
Agitating shaft, inclination auger blade directed downwardly is equidistantly set on agitating shaft, during the extraction process, driving motor drives agitating shaft
Rotation, since auger blade is downwardly inclined setting, can incite somebody to action so that auger blade be driven to rotate in whipping process
The material mixture liquid extracted in can body is pressed down against, and can increase the internal pressure of material mixture liquid, and material mixture liquid is transported
It can be run up along the inner wall for extracting can body when row to extractor bottom part body, be thusly-formed and squeeze operation circulation up and down,
Extraction efficiency can be effectively improved.
(3) present invention sets the liquid outlet for extracting solution to be discharged in extractor bottom part body, and is extracting in can body
Inclination sets arc filter screen, extracts medical fluid and enters to extract in can body by filter screen and arrives truncated cone-shaped bottom, and the dregs of a decoction
Above arc filter screen, can body is extracted in place at the lowermost end of filter screen equipped with the dregs of a decoction for the dregs of a decoction to be discharged
Outlet first passes through liquid outlet and is discharged the extracting solution in can body is extracted after extraction, opens dregs of a decoction outlet portal later,
Since filter screen is arc-shaped, and it is obliquely installed, the dregs of a decoction can be easily discharged from dregs of a decoction outlet, both facilitated using it,
The present invention is equipped with feed pipe, liquid auxiliary materials inlet pipe and solid-state auxiliary material inlet pipe simultaneously, and liquid auxiliary materials and solid-state auxiliary material separately add
Add, extremely can conveniently add materials and auxiliary material.
(4) tank skin for extracting can body is set as double-layer structure by the present invention, and is set and be somebody's turn to do on the top for extracting can body
The inlet tube of the inner cavity connection of double-layer structure tank skin, while the inner cavity with the double-layer structure tank skin is set in the lower part for extracting can body
The outlet tube of connection, during the extraction process, can according to the actual situation toward extract the inner cavity of can body tank skin by inlet tube and
Outlet tube inputs cold mould liquid medium or hot liquid medium, such as cold water or hot water, so that the material extracted in can body is mixed
It closes liquid to be in optimum extraction environment, to can further improve extraction efficiency.
(5) invention sets electric cabinet on extracting can body tank skin, electric cabinet respectively with driving motor, first-class
Measure valve, second flow valve, third flow valve, the first solenoid valve, second solenoid valve, third solenoid valve, temperature sensor and pressure
Sensor is electrically connected, to control above-mentioned electrical part operation, high degree of automation；The present invention sets magnetic on extracting can body tank skin
Float level meter, and interior form is set in extractor body top, operator can be made accurately to grasp the liquid extracted in can body in real time
Position situation and materials inside situation.
Detailed description of the invention
Fig. 1 is schematic structural view of the invention.
Fig. 2 is that each electronic device of the present invention connects block diagram.
Fig. 3 is the circuit diagram of temperature-compensation circuit of the present invention.
Wherein, the corresponding title of appended drawing reference are as follows:
1- extracts can body, 2- driving motor, 3- feed pipe, 4- liquid auxiliary materials inlet pipe, 5- agitating shaft, 6- propeller
Leaf, 7- filter screen, 8- liquid outlet, 9- dregs of a decoction outlet portal, 10- cold water inlet, 11- electric cabinet, 12- magnetic float liquidlevel meter,
13- hot water inlet pipe, 15- first flow valve, 16- second flow valve, 17- third flow valve, regards in 18- 14- solid-state auxiliary material inlet pipe
Window, 19- inlet tube, 20- outlet tube, the first solenoid valve of 21-, 22- second solenoid valve, 23- temperature sensor, 24- pressure sensing
Device, 25- extracting solution efferent duct, 26- third solenoid valve, 27- support leg.
Specific embodiment
The invention will be further described with embodiment for explanation with reference to the accompanying drawing, and mode of the invention includes but not only limits
In following embodiment.
As shown in Figure 1-3, automation Chinese medicine extracting tank provided by the invention, structure is simple, design is scientific and reasonable, user
Just, the medical fluid dregs of a decoction divide mouth to be discharged, and expulsion efficiency is high, and discharge is convenient, and extraction efficiency is high, high degree of automation.Packet of the present invention
It includes and extracts can body 1, be set to the 1 center of top rotary drive motor 2 of extraction can body, be set to the extraction can body 1 and push up
Portion and feed pipe 3, liquid auxiliary materials inlet pipe 4 and the solid-state auxiliary material inlet pipe 14 being distributed circumferentially around the driving motor 2, are set to vertically
It is described to extract in can body 1 and the agitating shaft 5 that is connect with the driving motor 2, it is equally spaced on the agitating shaft 5 and tilting
Auger blade 6 directed downwardly, inclination are set to the arc filter screen 7 of lower part in the extraction can body 1, are set to the extraction
The magnetic float liquidlevel meter 12 of 1 tank skin lower part of can body, and be set to 1 tank skin of extraction can body on and with the driving motor
2 electric cabinets 11 being electrically connected.
The present invention sets driving motor in extractor body top, and stirring of connecting with driving motor is set in can body extracting
Axis is mixed, inclination auger blade directed downwardly is equidistantly set on agitating shaft, during the extraction process, driving motor drives agitating shaft rotation
Turn, so that auger blade be driven to rotate, since auger blade is downwardly inclined setting, can will be mentioned in whipping process
It takes the material mixture liquid in can body to be pressed down against, the internal pressure of material mixture liquid can be increased, and material mixture liquid is run
It can be run up along the inner wall for extracting can body when to extractor bottom part body, be thusly-formed and squeeze operation circulation up and down, it can
Effectively improve extraction efficiency.
The bottom of the present invention for extracting can body 1 in reverse frustoconic and offers liquid outlet 8, the mistake in its least significant end
The least significant end of screen net 7 is flushed with the top opening for extracting 1 truncated cone-shaped bottom of can body, and the extraction can body 1 is being located at institute
It states and offers dregs of a decoction outlet at the least significant end of filter screen 7, and be equipped with salable closing dregs of a decoction in the dregs of a decoction exit
The dregs of a decoction outlet portal 9 of outlet, the two sides of the feed pipe 3 are connected separately with cold water inlet 10 and hot water inlet pipe 13, the liquid
The be electrically connected with the electric cabinet 11 is respectively equipped on state auxiliary material inlet pipe 4, the cold water inlet 10 and hot water inlet pipe 13
One flow valve 15, second flow valve 16 and third flow valve 17,1 top of extraction can body are offered for observing described mention
The interior form 18 of 1 inner case of can body is taken, extracting solution efferent duct 25, the extracting solution output are connected on the liquid outlet 8
Pipe 25 is equipped with the third solenoid valve 26 being electrically connected with the electric cabinet 11, and 1 bottom of extraction can body is circumferential uniformly to be divided
There are three support legs 27 for cloth.
The present invention sets the liquid outlet for extracting solution to be discharged in extractor bottom part body, and tilted extracting can body
If arc filter screen, extraction medical fluid, which enters to extract in can body by filter screen, arrives truncated cone-shaped bottom, and the dregs of a decoction are located at
Above arc filter screen, extracts can body and be equipped with to go out for the dregs of a decoction of the dregs of a decoction to be discharged at the lowermost end of filter screen in place
Mouthful, it after extraction, first passes through liquid outlet and is discharged the extracting solution in can body is extracted, open dregs of a decoction outlet portal later, by
It is arc-shaped in filter screen, and be obliquely installed, the dregs of a decoction can be easily discharged from dregs of a decoction outlet, both facilitated using it, this
It invents while being equipped with feed pipe, liquid auxiliary materials inlet pipe and solid-state auxiliary material inlet pipe, and liquid auxiliary materials and solid-state auxiliary material are added separately,
It extremely can conveniently add materials and auxiliary material.
The tank skin of the present invention for extracting can body 1 is double-layer structure, and is equipped on the top for extracting can body 1
The inlet tube 19 being connected to the inner cavity of the double-layer structure tank skin, while being equipped with and the bilayer in the lower part for extracting can body 1
The outlet tube 20 of the inner cavity connection of structure tank skin, is respectively equipped with and the electric cabinet on the inlet tube 19 and the outlet tube 20
11 the first solenoid valves 21 being electrically connected and second solenoid valve 22；It is described extract can body 1 tank skin inner cavity be equipped with respectively with institute
State the temperature sensor 23 and pressure sensor 24 of the electric connection of electric cabinet 11.
The tank skin for extracting can body is set as double-layer structure by the present invention, and is set and the bilayer on the top for extracting can body
The inlet tube of the inner cavity connection of structure tank skin, while setting in the lower part for extracting can body and being connected to the inner cavity of the double-layer structure tank skin
Outlet tube can pass through inlet tube and liquid out toward the inner cavity for extracting can body tank skin according to the actual situation during the extraction process
Pipe inputs cold mould liquid medium or hot liquid medium, such as cold water or hot water, so as to extract the material mixture liquid in can body
In optimum extraction environment, to can further improve extraction efficiency.
The present invention sets electric cabinet on extracting can body tank skin, electric cabinet respectively with driving motor, first flow valve, second
Flow valve, third flow valve, the first solenoid valve, second solenoid valve, third solenoid valve, temperature sensor and pressure sensor are electrical
Connection, to control above-mentioned electrical part operation, high degree of automation；The present invention sets magnetic float liquid level on extracting can body tank skin
Meter, and sets interior form in extractor body top, can make operator accurately grasp in real time extract level condition in can body and
Materials inside situation.
It is connected with a temperature-compensation circuit on pressure sensor 24 of the present invention, the temperature-compensation circuit includes the
One resistance R1, second resistance R2,3rd resistor R3, potentiometer WZ, post-amplifier U1 and the diode as temperature-compensating
D1, the cathode interface of the pressure sensor 24 are connect with the first resistor R1 and potentiometer WZ being serially connected, and the pressure passes
The anode interface of sensor 24 is connect with second resistance R2 parallel with one another and 3rd resistor R3, diode D1 and second resistance R2
Series connection, the non-inverting input terminal of post-amplifier U1 are connect with pressure sensor 24, the inverting input terminal and electricity of post-amplifier U1
Position device WZ is connected with second resistance R2, and the output end of post-amplifier U1 is connect with filter circuit.
Temperature-compensation circuit of the present invention further includes the 4th resistance R4, the 5th resistance R5, the 6th resistance R6, and the described 4th
Resistance R4 is connected between pressure sensor 24 and the non-inverting input terminal of post-amplifier U1, and the 5th resistance R5 is connected to electricity
Between position device WZ, second resistance R2 and the inverting input terminal of post-amplifier U1, the both ends of the 6th resistance R6 respectively with it is rear
The inverting input terminal connection of the output end and post-amplifier U1 of grade amplifier U1.
Pressure sensor of the present invention connects a temperature-compensation circuit, which can effectively eliminate pressure sensing
The influence of device temperature drift keeps pressure monitoring signal more accurate, so as to effectively eliminate because of the inaccurate bring of pressure signal
Security risk.
Above-described embodiment is only one of the preferred embodiment of the present invention, should not be taken to limit protection model of the invention
It encloses, as long as that in body design thought of the invention and mentally makes has no the change of essential meaning or polishing, is solved
The technical issues of it is still consistent with the present invention, should all be included within protection scope of the present invention.
Claims (5)
1. automating Chinese medicine extracting tank, it is characterised in that: including extracting can body (1), be set at the top of the extraction can body (1)
Central rotary drive motor (2) is set at the top of extraction can body (1) and circumferentially around the driving motor (2) distribution
Feed pipe (3), liquid auxiliary materials inlet pipe (4) and solid-state auxiliary material inlet pipe (14), be set to vertically the extractions can body (1) it is interior and with institute
The agitating shaft (5) for stating driving motor (2) connection is equally spaced on the agitating shaft (5) and inclination propeller directed downwardly
Leaf (6), inclination are set to the arc filter screen (7) for extracting can body (1) interior lower part, are set to the extraction can body (1)
The magnetic float liquidlevel meter (12) of tank skin lower part, and be set to extraction can body (1) tank skin on and with the driving motor (2)
The electric cabinet (11) of electric connection；The bottom for extracting can body (1) in reverse frustoconic and offers out liquid in its least significant end
Mouth (8), the least significant end of the filter screen (7) are flushed with the top opening for extracting can body (1) truncated cone-shaped bottom, the extraction
Can body (1) offers dregs of a decoction outlet at the least significant end for being located at the filter screen (7), and sets in the dregs of a decoction exit
There is the dregs of a decoction outlet portal (9) of salable closing dregs of a decoction outlet, the two sides of the feed pipe (3) are connected separately with cold water inlet
(10) and hot water inlet pipe (13), on the liquid auxiliary materials inlet pipe (4), the cold water inlet (10) and hot water inlet pipe (13) respectively
Equipped with the first flow valve (15), second flow valve (16) and third flow valve (17) being electrically connected with the electric cabinet (11)；
It is described extract can body (1) tank skin inner cavity be equipped with respectively with the electric cabinet (11) be electrically connected temperature sensor (23) and
Pressure sensor (24) is connected with a temperature-compensation circuit, the temperature-compensation circuit packet on the pressure sensor (24)
Include first resistor R1, second resistance R2,3rd resistor R3, potentiometer WZ, post-amplifier U1 and as the two of temperature-compensating
Pole pipe D1, the cathode interface of the pressure sensor (24) is connect with the first resistor R1 and potentiometer WZ being serially connected, described
The anode interface of pressure sensor (24) is connect with second resistance R2 parallel with one another and 3rd resistor R3, diode D1 and
Two resistance R2 series connection, the non-inverting input terminal of post-amplifier U1 are connect with pressure sensor (24), the reverse phase of post-amplifier U1
Input terminal is connect with potentiometer WZ and second resistance R2, and the output end of post-amplifier U1 is connect with filter circuit；The extraction
Can body (1) top is offered for observing the interior form (18) for extracting can body (1) inner case, the extractor master
The tank skin of body (1) is double-layer structure, and is equipped with the inner cavity with the double-layer structure tank skin on the top for extracting can body (1)
The inlet tube (19) of connection, while being equipped in the lower part for extracting can body (1) and being connected to the inner cavity of the double-layer structure tank skin
Outlet tube (20), be respectively equipped on the inlet tube (19) and the outlet tube (20) and the electric cabinet (11) be electrically connected
The first solenoid valve (21) and second solenoid valve (22).
2. automation Chinese medicine extracting tank according to claim 1, it is characterised in that: the temperature-compensation circuit further includes
Four resistance R4, the 5th resistance R5, the 6th resistance R6, the 4th resistance R4 are connected to pressure sensor (24) and post-amplifier
Between the non-inverting input terminal of U1, it is anti-with post-amplifier U1's that the 5th resistance R5 is connected to potentiometer WZ, second resistance R2
Between phase input terminal, the both ends of the 6th resistance R6 respectively with the output end of post-amplifier U1 and post-amplifier U1
Inverting input terminal connection.
3. automation Chinese medicine extracting tank according to claim 1, it is characterised in that: be connected with and mention on the liquid outlet (8)
It takes liquid efferent duct (25), the extracting solution efferent duct (25) is equipped with the third solenoid valve being electrically connected with the electric cabinet (11)
(26)。
4. automation Chinese medicine extracting tank according to claim 1, it is characterised in that: extraction can body (1) the bottom week
To being uniformly distributed, there are three support leg (27).
5. automation Chinese medicine extracting tank according to claim 1, it is characterised in that: the electric cabinet (11) is Siemens
PLCS7-400 control cabinet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810850340.1A CN109107219A (en) | 2018-07-28 | 2018-07-28 | Automate Chinese medicine extracting tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810850340.1A CN109107219A (en) | 2018-07-28 | 2018-07-28 | Automate Chinese medicine extracting tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109107219A true CN109107219A (en) | 2019-01-01 |
Family
ID=64863583
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810850340.1A Pending CN109107219A (en) | 2018-07-28 | 2018-07-28 | Automate Chinese medicine extracting tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109107219A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110425310A (en) * | 2019-07-23 | 2019-11-08 | 范国江 | It is a kind of to facilitate the valve for improving liquid handling efficiency |
| CN113307208A (en) * | 2021-06-08 | 2021-08-27 | 上海拓达机电设备有限公司 | High-speed filling machine |
| CN114522440A (en) * | 2022-03-01 | 2022-05-24 | 昆明理工大学 | Full-automatic hot melt tank |
-
2018
- 2018-07-28 CN CN201810850340.1A patent/CN109107219A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110425310A (en) * | 2019-07-23 | 2019-11-08 | 范国江 | It is a kind of to facilitate the valve for improving liquid handling efficiency |
| CN113307208A (en) * | 2021-06-08 | 2021-08-27 | 上海拓达机电设备有限公司 | High-speed filling machine |
| CN114522440A (en) * | 2022-03-01 | 2022-05-24 | 昆明理工大学 | Full-automatic hot melt tank |
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| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190101 |
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| WD01 | Invention patent application deemed withdrawn after publication |