CN111889453A - Three-station vacuum ultrasonic full-automatic cleaning machine for hydrocarbon solvent - Google Patents
Three-station vacuum ultrasonic full-automatic cleaning machine for hydrocarbon solvent Download PDFInfo
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- CN111889453A CN111889453A CN202010759159.7A CN202010759159A CN111889453A CN 111889453 A CN111889453 A CN 111889453A CN 202010759159 A CN202010759159 A CN 202010759159A CN 111889453 A CN111889453 A CN 111889453A
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- 238000004140 cleaning Methods 0.000 title claims abstract description 60
- 239000004215 Carbon black (E152) Substances 0.000 title claims abstract description 55
- 229930195733 hydrocarbon Natural products 0.000 title claims abstract description 55
- 150000002430 hydrocarbons Chemical class 0.000 title claims abstract description 55
- 239000002904 solvent Substances 0.000 title claims abstract description 36
- 239000007788 liquid Substances 0.000 claims abstract description 83
- 239000003350 kerosene Substances 0.000 claims abstract description 65
- 238000010438 heat treatment Methods 0.000 claims abstract description 50
- 238000004821 distillation Methods 0.000 claims abstract description 46
- 238000007872 degassing Methods 0.000 claims abstract description 31
- 238000000926 separation method Methods 0.000 claims abstract description 22
- 238000003860 storage Methods 0.000 claims abstract description 17
- 239000000463 material Substances 0.000 claims abstract description 11
- 239000010865 sewage Substances 0.000 claims abstract description 5
- 238000004506 ultrasonic cleaning Methods 0.000 claims description 38
- 238000001291 vacuum drying Methods 0.000 claims description 31
- 238000001035 drying Methods 0.000 claims description 19
- 238000001816 cooling Methods 0.000 claims description 17
- 238000005096 rolling process Methods 0.000 claims description 17
- 238000003825 pressing Methods 0.000 claims description 16
- 238000007789 sealing Methods 0.000 claims description 4
- 239000002699 waste material Substances 0.000 claims description 4
- 210000003371 toe Anatomy 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 10
- 238000000034 method Methods 0.000 abstract description 7
- 230000008569 process Effects 0.000 abstract description 5
- 238000009835 boiling Methods 0.000 abstract description 4
- 239000003344 environmental pollutant Substances 0.000 abstract description 4
- 231100000719 pollutant Toxicity 0.000 abstract description 4
- 239000000654 additive Substances 0.000 abstract description 2
- 238000005265 energy consumption Methods 0.000 abstract description 2
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 239000000243 solution Substances 0.000 description 36
- 239000003921 oil Substances 0.000 description 13
- 239000007789 gas Substances 0.000 description 7
- 238000005498 polishing Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 239000012459 cleaning agent Substances 0.000 description 3
- 230000032258 transport Effects 0.000 description 3
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000011086 high cleaning Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000010742 number 1 fuel oil Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000013505 freshwater Substances 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 230000010358 mechanical oscillation Effects 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
- 238000002604 ultrasonography Methods 0.000 description 1
- 239000012224 working solution Substances 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/04—Cleaning involving contact with liquid
- B08B3/10—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration
- B08B3/12—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration by sonic or ultrasonic vibrations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
- B01D3/02—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping in boilers or stills
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/04—Cleaning involving contact with liquid
- B08B3/08—Cleaning involving contact with liquid the liquid having chemical or dissolving effect
Abstract
The invention provides a three-station vacuum ultrasonic full-automatic cleaning machine for hydrocarbon solvents, which comprises an external frame, wherein the inside of the external frame is divided into a front part and a rear part, the lower half part of the front part of the external frame is a cleaning system, and the rear part of the external frame is sequentially provided with a gas-liquid separation tank, a vacuum buffer tank, a hot kerosene tank, a distillation still, a hot kerosene heating assembly, a sewage tank, a liquid level regulator, a heat exchanger, a degassing tank and a liquid storage tank from left to right. According to the technical scheme, the constraint of the traditional material-based cleaning process is eliminated, the hydrocarbon solvent is adopted to clean the workpiece, the hydrocarbon solvent can be reused, and the pollutant emission and energy consumption are reduced. The oil removing effect of the hydrocarbon solvent is good, extra cleaning additives are not needed, the hydrocarbon solvent can be distilled and recovered by utilizing the difference of the boiling points of the hydrocarbon solvent and other oil stains, the service life of the cleaning solvent is greatly prolonged, the emission of pollutants is reduced, and a certain rust-proof effect is achieved on a workpiece after the hydrocarbon solvent is cleaned.
Description
Technical Field
The invention relates to the technical field of cleaning machine machinery, in particular to a three-station vacuum ultrasonic full-automatic cleaning machine for a hydrocarbon solvent.
Background
Ultrasonic cleaning principle: the high-frequency oscillation signal emitted from the ultrasonic generator is converted into high-frequency mechanical oscillation by the transducer and is propagated into the cleaning solvent, and tens of thousands of micro-bubbles are generated. The shock wave generated by the fine bubbles breaks the insoluble dirt and disperses the dirt in the material. The ultrasonic cleaning has the advantages of high cleaning speed, high cleaning precision, good cleaning effect and good cleaning effect on parts which are difficult to clean, such as deep holes, gaps and the like, and is widely applied to the aspects of industry, national defense, biomedicine and the like. The common in the industry is to use material-based ultrasonic equipment to clean workpieces, the cleaning medium is a material-based solvent, and the workpieces are cleaned by ultrasonic cleaning by using a method of adding a cleaning agent to the materials. During cleaning, a large amount of material resources are needed, and the cleaning solution needs to be frequently replaced. The cleaning agent is required to be added for good oil removing effect, and the environment is polluted after the cleaning agent is discharged.
Disclosure of Invention
In order to make up the defects of the prior art, the invention provides a three-station vacuum ultrasonic full-automatic cleaning machine for hydrocarbon solvents.
The invention is realized by the following technical scheme: a three-station vacuum ultrasonic full-automatic cleaning machine for hydrocarbon solvents comprises an external frame, wherein an electric control cabinet is arranged on the left side of the external frame, the inside of the external frame is divided into a front part and a rear part, the lower half part of the front part of the external frame is a cleaning system, the upper half part of the front part of the external frame is a manipulator assembly, the cleaning system is sequentially provided with a feeding conveying line, a degassing ultrasonic cleaning tank, a vacuum ultrasonic rinsing tank, a vacuum steam rinsing and drying tank, a blanking conveying line and a fresh liquid tank from left to right, and the rear part of the external frame is sequentially provided with a gas-liquid separation tank, a vacuum buffer tank, a hot coal oil tank, a distillation kettle, a hot coal oil heating assembly, a sewage tank, a liquid level regulator, a heat exchanger, a degassing tank and a liquid storage tank from left to right;
the manipulator assembly comprises a first transverse moving guide rail at the upper part and a second transverse moving guide rail at the lower part, a transverse moving rack is fixedly arranged on the first transverse moving guide rail, a lifting guide rail is movably connected between the first transverse moving guide rail and the second transverse moving guide rail, a transverse moving servo motor is fixedly arranged on the lifting guide rail and is movably connected with the transverse moving rack, the lifting guide rail is movably connected with a manipulator through a guide rail, a rodless cylinder is also arranged on the lifting guide rail, and the rodless cylinder controls and connects the manipulator;
the degassing ultrasonic cleaning tank comprises a cleaning tank body, an overflow plate is fixedly installed at the left part of an inner cavity of the cleaning tank body, the cleaning tank body is divided into two areas through the overflow plate, the left area of the overflow plate is an overflow area, a communicating vessel is arranged above the overflow area, the communicating vessel is connected with a liquid storage tank positioned at the rear part of the degassing ultrasonic cleaning tank, a discharge port is arranged at the bottom of the overflow area and is connected with a first circulating pump through a pipeline, the first circulating pump is connected with a feed port of a degassing tank, the discharge port of the degassing tank is connected with the feed port of the cleaning tank body through the first circulating pump, the right area of the overflow plate is an ultrasonic cleaning area, an ultrasonic vibrating box is fixedly installed on the inner wall of the bottom of the ultrasonic cleaning area, a polishing machine frame is fixedly installed on the inner wall of the rear part of the ultrasonic cleaning area, the upper part of the polishing machine frame, a roller assembly is arranged in the ultrasonic cleaning area, a cooling coil is arranged on the right side of the roller assembly, the roller assembly is connected with a basket rolling motor through a chain, and the basket rolling motor is arranged above the cleaning tank body;
the vacuum ultrasonic rinsing tank comprises a vacuum ultrasonic tank body, the top of the vacuum ultrasonic tank body is movably connected with a first vacuum cover, the top of the first vacuum cover is provided with a first vacuum moving cylinder, the left side and the right side of the first vacuum cover are respectively provided with a first vacuum pressing cylinder, the first vacuum pressing cylinders are fixedly arranged on an external frame through a support, the bottom of the vacuum ultrasonic tank body is provided with a vacuum ultrasonic vibration box, the side surface of the vacuum ultrasonic vibration box is provided with a cooling coil, a first tool basket support is arranged above the vacuum ultrasonic vibration box, two first rotary rollers are arranged inside the first tool basket support in parallel, the rear ends of the rotary rollers are fixedly arranged on the rear inner wall of the first tool basket support, the front part of the first rotary roller sequentially penetrates through the first tool basket support and the vacuum ultrasonic vibration box, the top end of the first rotary roller is connected with a first rolling motor through a chain, the first rolling motor is arranged below the vacuum ultrasonic tank body, the rear of the vacuum ultrasonic groove body is fixedly provided with a first vacuum pump, the first vacuum pump is respectively connected with the vacuum ultrasonic groove body and the degassing tank through pipelines, the rear of the vacuum drying groove body is fixedly provided with a second vacuum pump, the second vacuum pump is connected with the vacuum drying groove body through a pipeline, a discharge port of the vacuum drying groove body is connected with a feed port of a vacuum buffer tank, and the discharge port of the vacuum buffer tank is connected with a feed port of the vacuum ultrasonic groove body through a third circulating pump. (ii) a
The vacuum steam rinsing and drying tank comprises a vacuum drying tank body, the top of the vacuum drying tank body is movably connected with a second vacuum cover, the top of the second vacuum cover is provided with a second vacuum moving cylinder, the left side and the right side of the second vacuum cover are respectively provided with a second vacuum pressing cylinder, the second vacuum pressing cylinders are fixedly arranged on an external frame through a support, the bottom of the vacuum drying tank body is provided with a second tooling basket support, two second rotary drums are arranged in the second tooling basket support in parallel, the rear ends of the second rotary drums are fixedly arranged on the rear inner wall of the second tooling basket support, the front parts of the second rotary drums sequentially penetrate through the second tooling basket support and the vacuum drying tank body, the top ends of the second rotary drums are connected with a second rolling motor through chains, the two sides of the vacuum drying tank body are fixedly provided with a hot kerosene heating outer plate, and the discharge port of the vacuum drying tank body is connected with the feed port of a vacuum buffer tank;
the new liquid tank is connected with the tank body of the cleaning tank and the feed inlet of the vacuum ultrasonic tank body through a third circulating pump;
the gas-liquid separation tank is positioned right behind the blanking conveying line and is connected with a vacuum pump gas outlet of the vacuum ultrasonic rinsing tank and the vacuum steam rinsing and drying tank, a cooling coil is arranged inside the gas-liquid separation tank, an exhaust valve is arranged at the top of the gas-liquid separation tank, and a discharge port of the gas-liquid separation tank is connected with the vacuum ultrasonic tank body through a third circulating pump;
the distillation kettle is divided into an upper distillation kettle half and a lower distillation kettle half, a feed inlet of the lower distillation kettle half is connected with one end of a liquid level regulator, the other end of the liquid level regulator is connected with a liquid storage tank, a pipeline between the liquid level regulator and the liquid storage tank is connected with the outside of a heat exchanger, a hot kerosene heating pipe is arranged in the lower distillation kettle half, a hot kerosene heating jacket is sleeved on the outside of the lower distillation kettle half, an oil inlet of the hot kerosene heating pipe is connected with a hot kerosene heating component, the hot kerosene heating component is connected with a hot kerosene tank, an oil outlet of the hot kerosene heating pipe is connected with an oil inlet of the hot kerosene heating jacket, an oil outlet of the hot kerosene heating jacket is connected with a hot kerosene heating outer plate, an oil outlet of the hot kerosene heating outer plate is connected with the hot kerosene tank through a pipeline, a steam outlet of the upper distillation kettle half is respectively connected with a vacuum, a discharge port of the vacuum buffer tank is connected with a feed port of the vacuum ultrasonic tank body, an internal pipeline of the heat exchanger is connected between a steam outlet of the upper half part of the distillation kettle and the feed port of the empty buffer tank, and a waste liquid port of the lower half part of the distillation kettle is connected with a waste liquid tank;
preferably, the bottom end of the outer frame is provided with a plurality of supporting toes.
As the preferred scheme, the rotary drum and the vacuum ultrasonic tank body are sealed by a framework sealing ring.
Preferably, two groups of exhaust valves are provided.
Preferably, the liquid level regulator is internally provided with a liquid level ball float valve.
Preferably, the vacuum buffer tank is in a negative pressure state.
Due to the adoption of the technical scheme, compared with the prior art, the invention has the following beneficial effects: the method gets rid of the constraint of the traditional material-based cleaning process, adopts the hydrocarbon solvent to clean the workpiece, can repeatedly use the hydrocarbon solvent, and reduces the emission of pollutants and energy consumption. The oil removing effect of the hydrocarbon solvent is good, extra cleaning additives are not needed, the hydrocarbon solvent can be distilled and recovered by utilizing the difference of the boiling points of the hydrocarbon solvent and other oil stains, the service life of the cleaning solvent is greatly prolonged, the emission of pollutants is reduced, and a certain rust-proof effect is achieved on a workpiece after the hydrocarbon solvent is cleaned.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic front view of the present invention;
FIG. 2 is a rear view of the present invention;
FIG. 3 is a schematic rear view of the present invention with the circulation pump and vacuum pump assembled;
FIG. 4 is a schematic front view of the ultrasonic cleaning tank;
FIG. 5 is a left side view of the ultrasonic cleaning tank;
FIG. 6 is a schematic top view of the ultrasonic cleaning tank;
FIG. 7 is a schematic front view of the vacuum ultrasonic rinsing tank;
FIG. 8 is a left side view schematically showing the structure of the vacuum ultrasonic rinsing tank;
FIG. 9 is a schematic top view of the vacuum ultrasonic rinsing tank;
FIG. 10 is a schematic front view of the vacuum steam rinsing drying tank;
FIG. 11 is a left side view schematically showing the structure of the vacuum steam rinsing drying tank;
FIG. 12 is a schematic diagram showing a top view of a vacuum steam rinsing drying tub;
FIG. 13 is a schematic front view of the gas-liquid separation tank;
FIG. 14 is a schematic diagram showing the structure of a gas-liquid separation tank viewed from the right;
FIG. 15 is a schematic front view of a distillation still;
FIG. 16 is a front view of the robot assembly;
figure 17 is a schematic left side view of the robot assembly,
wherein, the corresponding relationship between the reference numbers and the components in fig. 1 to 17 is:
1, a feeding conveying line; 2, a degassing ultrasonic cleaning tank, 2-1 polishing air cylinders, 2-2 polishing machine frames, 2-3 basket rolling motors, 2-4 overflow plates, 2-5 ultrasonic cleaning areas, 2-6 cooling coil pipes, 2-7 ultrasonic vibration boxes, 2-8 overflow plates, 2-9 roller assemblies, 2-10 cleaning tank bodies and 2-11 first circulating pumps; 3, a vacuum ultrasonic rinsing tank, 3-1, a vacuum ultrasonic tank body, 3-2, a first vacuum cover, 3-3, a first vacuum moving cylinder, 3-4, a first vacuum pressing cylinder, 3-5, a first rolling motor, 3-6, a first cooling coil, 3-7, a first tool basket support, 3-8, a first rotating roller, 3-9, a vacuum ultrasonic vibration box and 3-10, a second circulating pump; 4 vacuum steam rinsing drying groove, 4-1 vacuum drying groove body, 4-2 second vacuum cover, 4-3 second vacuum moving cylinder, 4-4 second vacuum pressing cylinder, 4-5 second rolling motor, 4-6 second rotary drum, 4-7 second tool basket support, 4-8 hot kerosene heating outer plate and 4-9 second vacuum pump; 5, a fresh liquid tank and 5-1 of a third circulating pump; 6 gas-liquid separation tank, 6-1 exhaust valve, 6-2 second cooling coil; 7, a vacuum buffer tank; 8 hot kerosene tank; 9 distillation still, 9-1 upper half part of distillation still, 9-2 lower half part of distillation still, 9-3 hot kerosene heating jacket, 9-4 hot kerosene heating pipe; 10, a sewage tank; 11 a liquid level regulator; 12 a hot kerosene heating assembly; 13 a heat exchanger; 14 degassing tank; 15 liquid storage tank, 15-1 communicating vessel; 16 manipulator assemblies, 16-1 first transverse moving guide rail, 16-2 second transverse moving guide rail, 16-3 transverse moving racks, 16-4 lifting guide rails, 16-5 transverse moving servo motors, 16-6 manipulators and 16-7 rodless cylinders; 17 external frame, 18 electric control cabinet.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced otherwise than as specifically described herein, and thus the scope of the present invention is not limited by the specific embodiments disclosed below.
The three-station vacuum ultrasonic hydrocarbon solvent full-automatic cleaning machine according to the embodiment of the invention is specifically described below with reference to fig. 1 to 17.
As shown in figures 1 to 17, the invention provides a three-station vacuum ultrasonic full-automatic cleaning machine for hydrocarbon solvents, which comprises an outer frame 17, wherein a plurality of supporting tiptoes 19 are arranged at the bottom end of the outer frame 17. The left side of an external frame 17 is provided with an electric control cabinet 18, the inside of the external frame 17 is divided into a front part and a rear part, the lower half part of the front part of the external frame 17 is a cleaning system, the upper half part of the front part of the external frame 17 is a manipulator assembly 16, the cleaning system is sequentially provided with a feeding conveying line 1, a degassing ultrasonic cleaning tank 2, a vacuum ultrasonic rinsing tank 3, a vacuum steam rinsing and drying tank 4, a blanking conveying line 18 and a fresh liquid tank 5 from left to right, and the rear part of the external frame 17 is sequentially provided with a gas-liquid separation tank 6, a vacuum buffer tank 7, a hot kerosene tank 8, a distillation kettle 9, a hot kerosene heating assembly 12, a dirty liquid tank 10, a liquid level regulator 11, a heat exchanger 13, a degassing tank 14 and a liquid storage tank 15 from left to right, wherein the distillation kettle 9 is positioned above the dirty;
the manipulator assembly 16 comprises a first transverse moving guide rail 16-1 at the upper part and a second transverse moving guide rail 16-2 at the lower part, a transverse moving rack 16-3 is fixedly arranged on the first transverse moving guide rail 16-1, a lifting guide rail 16-4 is movably connected between the first transverse moving guide rail 16-1 and the second transverse moving guide rail 16-2, the lifting guide rail 16-4 is movably connected with the transverse moving rack 16-3 through a transverse moving servo motor 16-5, the lifting guide rail 16-4 is movably connected with a manipulator 16-6 through a guide rail, a rodless cylinder 16-7 is also arranged on the lifting guide rail 16-4, and the manipulator 16-6 is controlled and connected by the rodless cylinder 16-7. The manipulator assembly 16 is a part for carrying the tool basket, the transverse movement of the manipulator 16-6 is realized by a transverse movement servo motor 16-5 matched with a transverse movement rack 16-3, and the longitudinal movement of the manipulator 16-6 is realized by a rodless cylinder 16-7.
The degassing ultrasonic cleaning tank 2 comprises a cleaning tank body 2-10, an overflow plate 2-8 is fixedly installed at the left part of an inner cavity of the cleaning tank body 2-10, the cleaning tank body 2-10 is divided into two areas through the overflow plate 2-8, the left side area of the overflow plate 2-8 is an overflow area 2-4, a communicating vessel 15-1 is arranged above the overflow area 2-4, the communicating vessel 15-1 is connected with a liquid storage tank 15 positioned at the rear part of the degassing ultrasonic cleaning tank 2, the bottom of the overflow area (2-4) is provided with a discharge port which is connected with a first circulating pump 2-11 through a pipeline, the first circulating pump 2-11 is connected with a feed port of a degassing tank 14, the discharge port of the degassing tank 14 is connected with a feed port of the cleaning tank body 2-10 through the first circulating pump 2-11, the right side area of the overflow plate 2-8 is, an ultrasonic vibration box 2-7 is fixedly arranged on the inner wall of the bottom of an ultrasonic cleaning area 2-5, a throwing machine frame 2-2 is fixedly arranged on the inner wall of the rear part of the ultrasonic cleaning area 2-5, the upper part of the throwing machine frame 2-2 is connected with a manipulator assembly 16, a throwing cylinder 2-1 is arranged in the middle of the throwing machine frame 2-2, the throwing cylinder 2-1 is positioned behind a cleaning tank body 2-10, a roller assembly 2-9 is arranged in the ultrasonic cleaning area 2-5, a cooling coil 2-6 is arranged on the right side of the roller assembly 2-9, the roller assembly 2-9 is connected with a roller basket motor 2-3 through a chain, and the roller basket motor 2-3 is arranged above the cleaning tank body 2-10. The manipulator puts the tool basket on the throwing rack 2-2, the throwing cylinder 2-1 drives the throwing rack 2-2 to descend to the 2-5 ultrasonic cleaning area for ultrasonic cleaning, the throwing cylinder 2-1 drives the throwing rack 2-2 to throw up and down in a small amplitude in the cleaning process, and the basket motor 2-3 drives the roller assembly 2-9 to rotationally clean the supported basket through a chain. In the cleaning process, a part of hydrocarbon solvent in the vacuum ultrasonic rinsing tank 3 can be shunted to the degassing tank ultrasonic cleaning tank 2, the cooling coils 2-6 can cool solution in the tank, the volatilization amount of the hydrocarbon solvent is reduced, the excessive solution can overflow to the overflow area 2-4, the overflow area 2-4 is connected with the liquid storage tank 15 by the principle of a communicating vessel 15-1, and finally the excessive solution can be stored in the liquid storage tank. The solution in overflow zones 2-4 will flow through lines to degassing tank 14, which will be evacuated, causing the solution in the tank to evacuate dissolved gases from the liquid due to the vacuum pressure, thereby causing the solution to cavitate better under ultrasonic action. And the degassed hydrocarbon solution is circularly filtered by a circulating pump and then discharged into the 2 degassing tank ultrasonic cleaning tank for ultrasonic cleaning.
The vacuum ultrasonic rinsing tank 3 comprises a vacuum ultrasonic tank body 3-1, the top of the vacuum ultrasonic tank body 3-1 is movably connected with a first vacuum cover 3-2, the top of the first vacuum cover 3-2 is provided with a first vacuum moving cylinder 3-3, the left side and the right side of the first vacuum cover 3-2 are respectively provided with a first vacuum pressing cylinder 3-4, the first vacuum pressing cylinder 3-4 is fixedly arranged on an external frame 17 through a support, the bottom of the vacuum ultrasonic tank body 3-1 is provided with a vacuum ultrasonic vibration box 3-9, the side face of the vacuum ultrasonic vibration box 3-9 is provided with a first cooling coil 3-6, and the first cooling coil 3-6 cools a solution and reduces the volatilization amount of a hydrocarbon solvent. A first tool basket support 3-7 is arranged above the vacuum ultrasonic vibration box 3-9, two first rotary rollers 3-8 are arranged in parallel in the first tool basket support 3-7, the rear ends of the rotary rollers 3-8 are fixedly arranged on the rear inner wall of the first tool basket support 3-7, the front part of the first rotary roller 3-8 sequentially penetrates through the first tool basket support 3-7 and the vacuum ultrasonic groove body 3-1, the top end of the first rotary roller 3-8 is connected with a first rolling motor 3-5 through a chain, the first rolling motor 3-5 is arranged below the vacuum ultrasonic groove body 3-1, the rotary rollers 3-8 and the vacuum ultrasonic groove body 3-1 are sealed by a framework sealing ring, the power of the first rotary roller 3-8 is transmitted into the groove from the outside of the groove, and the vacuum is required, therefore, the framework sealing ring is used for preventing the seepage of the hydrocarbon solvent and the influence of gas entering the groove body on the vacuum effect of the groove body. A first vacuum pump 3-11 is fixedly arranged behind the vacuum ultrasonic tank body 3-1, the first vacuum pump 3-11 is respectively connected with the vacuum ultrasonic tank body 3-1 and the degassing tank 14 through pipelines, a discharge port of the vacuum ultrasonic tank body 3-1 is connected with a feed port of the cleaning tank body 2-10 and a feed port of the vacuum ultrasonic tank body 3-1 in a shunting manner through a second circulating pump 3-10, a discharge port of the vacuum ultrasonic tank body 3-1 is respectively connected with a hydrocarbon solution in the vacuum ultrasonic rinsing tank 3 through the circulating pump, wherein one part of the hydrocarbon solution can be circularly filtered, purified and discharged back into the tank through the circulating pump, and the other part of the hydrocarbon solution can be discharged to the ultrasonic cleaning tank 2. And part of the hydrocarbon solution is supplemented into the 3 vacuum ultrasonic rinsing tanks from the fresh water tank, the gas-liquid separation tank and the vacuum buffer tank through a circulating pump. The mechanical arm 16 places the tool basket on the first tool basket support 3-7, the first rolling motor 3-5 drives the rotating roller 3-8 to rotate through a chain, the rolling basket in the tool basket is further driven to rotate, the first vacuum moving cylinder 3-3 drives the first vacuum cover 3-2 to move forwards after the tool basket is in place, the first vacuum pressing cylinder 3-4 drives the first vacuum pressing cylinder 3-4 to descend to the cylinder surface after the tool basket reaches the position right above the vacuum groove, the first vacuum pump 3-11 starts to work and vacuumize, the first vacuum cover 3-2 starts to press, and after the preset vacuum degree is reached, the vacuum ultrasonic vibration box 3-9 starts to work, and the workpiece is subjected to ultrasonic cleaning. The purpose of vacuum ultrasound is also to utilize the degassing principle for better ultrasonic cavitation effect.
The vacuum steam rinsing and drying groove 4 comprises a vacuum drying groove body 4-1, the top of the vacuum drying groove body 4-1 is movably connected with a second vacuum cover 4-2, the top of the second vacuum cover 4-2 is provided with a second vacuum moving cylinder 4-3, the left side and the right side of the second vacuum cover 4-2 are respectively provided with a second vacuum pressing cylinder 4-4, the second vacuum pressing cylinder 4-4 is fixedly arranged on an external frame 17 through a bracket, the bottom of the vacuum drying groove body 4-1 is provided with a second tooling basket bracket 4-7, the inside of the second tooling basket bracket 4-7 is provided with two second rotating drums 4-6 in parallel, the rear end of the second rotating drum 4-6 is fixedly arranged on the rear inner wall of the second tooling basket bracket 4-7, and the front part of the second rotating drum 4-6 sequentially passes through the second tooling basket bracket 4-7 and the vacuum drying groove body 4-1 The top end of a second rotary drum 4-6 is connected with a second rolling motor 4-5 through a chain, hot kerosene heating outer plates 4-8 are fixedly installed on two sides of a vacuum drying groove body 4-1, a second vacuum pump 4-9 is fixedly installed behind the vacuum drying groove body 4-1, the second vacuum pump 4-9 is connected with the vacuum drying groove body 4-1 through a pipeline, a discharge port of the vacuum drying groove body 4-1 is connected with a feed port of a vacuum buffer tank 7, and a discharge port of the vacuum buffer tank 7 is connected with a feed port of a vacuum ultrasonic groove body 3-1 through a third circulating pump 5-1. The specific vacuum cover action and the rotation action of the vacuum steam rinsing drying tank 4 are the same as those of the vacuum ultrasonic rinsing tank 3, and are not described again here. When the second vacuum cover 4-2 is closed, the vacuum pump starts to work and vacuumize, the hydrocarbon solution gas which is heated and evaporated in the distillation kettle 9 can be pumped into the 4 vacuum steam rinsing and drying tank due to the pressure, the steam can be liquefied into liquid after meeting the workpiece with lower temperature, the workpiece is subjected to steam rinsing, after rinsing is completed, the rinsed hydrocarbon solution is discharged into the 7 vacuum buffer tank, the heated hot kerosene solution can be used for indirectly heating the tank body in the hot kerosene heating outer plate 4-4, when vacuum drying is performed, the boiling point of the hydrocarbon solution can be reduced along with the rise of the vacuum degree, gasification can be realized at a lower temperature, the hydrocarbon solution can be pumped out by the vacuum pump, and finally the workpiece can achieve the drying effect.
The new liquid tank 5 is connected with the feed inlet of the cleaning tank body 2-10 and the vacuum ultrasonic tank body 3-1 through a third circulating pump 5-1, the new liquid tank 5 is a liquid supplementing tank of the whole equipment, and hydrocarbon solution can be supplemented into the equipment from the tank.
The gas-liquid separation tank 6 is positioned right behind the blanking conveying line 18, the gas-liquid separation tank 6 is connected with vacuum pump gas outlets of the vacuum ultrasonic rinsing tank 3 and the vacuum steam rinsing and drying tank 4, a second cooling coil 6-2 is arranged inside the gas-liquid separation tank 6, exhaust valves 6-1 are arranged at the top of the gas-liquid separation tank 6, and two groups of exhaust valves 6-1 are arranged. A discharge hole of the gas-liquid separation tank 6 is connected with a vacuum ultrasonic tank body 3-1 through a third circulating pump 5-1. The gas pumped out when the vacuum pump pumps vacuum can carry certain hydrocarbon solution steam, the steam is discharged into the gas-liquid separation tank 6, the second cooling coil 6-2 in the gas-liquid separation tank 6 can cool the steam, the steam is liquefied, and a small amount of non-liquefied steam can be discharged out of the equipment from the exhaust valve 6-1 through the exhaust fan in the gas-liquid separation tank. The solution in the gas-liquid separation tank also provides working solution for the liquid ring vacuum pump tool, and a part of the solution can be supplemented to the vacuum ultrasonic rinsing tank 3.
The distillation kettle 9 is divided into an upper distillation kettle half part 9-1 and a lower distillation kettle half part 9-2, a feed inlet of the lower distillation kettle half part 9-2 is connected with one end of a liquid level regulator 11, the other end of the liquid level regulator 11 is connected with a liquid storage tank 15, the liquid storage tank 15 is a place for collecting solution overflowing from the degassing tank ultrasonic cleaning tank 2, and meanwhile, the distillation kettle 9 is also supplemented with solution for distillation treatment. The line between the level regulator 11 and the reservoir tank 15 connects the outside of the heat exchanger 13. The liquid level regulator 11 is internally provided with a liquid level ball cock. The inside of the lower distillation kettle part 9-2 is provided with a hot kerosene heating pipe 9-4, the outside of the lower distillation kettle part 9-2 is sleeved with a hot kerosene heating jacket 9-3, an oil inlet of the hot kerosene heating pipe 9-4 is connected with a hot kerosene heating component 12, the inside of the hot kerosene heating component 12 is provided with a communicated hot kerosene heating pipe, and the hot kerosene is heated by a hot kerosene circulating pump through the part. The hot kerosene heating unit 12 is connected to the hot kerosene tank 8, the hot kerosene tank 8 being the place where the hot kerosene is stored, and the hot kerosene is added from this tank. The oil outlet of the hot kerosene heating pipe 9-4 is connected with the oil inlet of the hot kerosene heating jacket 9-3, the oil outlet of the hot kerosene heating jacket 9-3 is connected with the hot kerosene heating outer plate 4-8, the oil outlet of the hot kerosene heating outer plate 4-8 is connected with the hot kerosene tank 8 through a pipeline, the steam outlet of the upper half part 9-1 of the distillation still is respectively connected with the vacuum drying groove body 4-1 and the feed inlet of the vacuum buffer tank 7 through a pipeline, the vacuum buffer tank 7 is in a negative pressure state, the redundant hydrocarbon solution gas which is heated and evaporated in the distillation kettle 9 can be pumped into the tank and stored after being cooled and liquefied by the cooling coil pipe, the distillation, purification and recovery of the hydrocarbon solution are completed, meanwhile, the distilled hydrocarbon solution in the vacuum steam rinsing and drying tank 4 is also discharged into the tank, and then the vacuum ultrasonic rinsing tank 3 is replenished for reuse. The discharge port of the vacuum buffer tank 7 is connected with the feed inlet of the vacuum ultrasonic tank body 3-1, the waste liquid port of the lower half part 9-2 of the distillation kettle is connected with the dirty liquid tank 10, and the dirty liquid tank 10 collects and concentrates the dirty liquid left after distillation. The lower half part 9-2 of the distillation still is internally provided with hydrocarbon solution supplemented from the liquid level regulator 11, and the hot kerosene heated by the hot kerosene heating component 12 flows into the hot kerosene heating jacket 9-3 through the hot kerosene heating pipe 9-4 and then flows into the hot kerosene heating outer plate 4-4 of the vacuum steam rinsing and drying tank 4. The hydrocarbon solution in the distillation still 9 can be evaporated into steam and discharged to the vacuum steam rinsing drying groove 4 and the vacuum buffer tank 7 through indirect heating of hot kerosene, an internal pipeline of a heat exchanger 13 is connected between a steam outlet of the upper half part 9-1 of the distillation still and a feed inlet of the empty buffer tank 7, and the hydrocarbon solution is preheated through the cold hydrocarbon solution from the liquid storage tank 15 to the liquid level regulator 11 from the outside through the hydrocarbon solution steam from the distillation still 9 to the vacuum buffer tank 7 in the heat exchanger 13. Meanwhile, the hydrocarbon solvent and other solutions dissolved in the hydrocarbon solvent have different boiling points, and can be separated after distillation, the distilled dirty liquid can be discharged into a 10 dirty liquid tank for centralized discharge, and the hydrocarbon solution is separated, purified and reused, which is the reason for environmental protection of hydrocarbon equipment.
The heat exchanger 13 preheats the hydrocarbon solution from the still 9 to the vacuum buffer tank 7, and from the outside to the level regulator 11, by means of cold hydrocarbon solution from the tank 15.
The working process is that the flow of the cleaning line is as follows: automatic feeding of a feeding conveying line → degassing ultrasonic cleaning → vacuum ultrasonic rinsing → steam rinsing → vacuum drying → automatic blanking of a blanking conveying line. The workman puts the frock basket on the material loading transfer chain, the transfer chain passes through inside the motor drives the frock basket transport equipment, inductive switch senses after the frock basket targets in place, the transfer chain can stop motion, the manipulator gets the piece, it puts into degasification groove ultrasonic cleaning tank and washs to hoist the frock basket, the rethread manipulator gets the piece after the time arrives and transports the frock basket to second vacuum ultrasonic wave potcher and washs, the rethread manipulator gets the piece after the time arrives and transports the frock basket to third vacuum steam potcher stoving groove and carries out steam bath and vacuum drying, rethread mechanical handle frock basket takes out after the time arrives and puts the unloading transfer chain, the transfer chain is automatic with the frock basket delivery line equipment.
In the description of the present invention, the terms "plurality" or "a plurality" refer to two or more, and unless otherwise specifically limited, the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention; the terms "connected," "mounted," "secured," and the like are to be construed broadly and include, for example, fixed connections, removable connections, or integral connections; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the description herein, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. The utility model provides a full automatic cleaning machine of hydrocarbon solvent of three station vacuum supersound, including outer frame (17), a serial communication port, outer frame (17) left side is equipped with automatically controlled cabinet (18), two parts around outer frame (17) inside divide into, the anterior lower half part of outer frame (17) is cleaning system, the anterior first half part of outer frame (17) is manipulator subassembly (16), cleaning system installs material loading transfer chain (1) from left to right in proper order, degasification ultrasonic cleaning tank (2), vacuum ultrasonic wave rinsing groove (3), vacuum steam rinsing drying bath (4), unloading transfer chain (18) and new cistern (5), gas-liquid separation groove (6) are installed from left to right in proper order to the rear portion of outer frame (17), vacuum buffer tank (7), hot kerosene case (8), stills (9), hot kerosene oil heating element (12), dirty liquid jar (10), The device comprises a liquid level regulator (11), a heat exchanger (13), a degassing tank (14) and a liquid storage tank (15), wherein the distillation kettle (9) is positioned above the sewage tank (10), and the liquid level regulator (11) is positioned above the heat exchanger (13);
the manipulator assembly (16) comprises a first transverse moving guide rail (16-1) at the upper part and a second transverse moving guide rail (16-2) at the lower part, a transverse moving rack (16-3) is fixedly installed on the first transverse moving guide rail (16-1), a lifting guide rail (16-4) is movably connected between the first transverse moving guide rail (16-1) and the second transverse moving guide rail (16-2), the lifting guide rail (16-4) is movably connected with the transverse moving rack (16-3) through a transverse moving servo motor (16-5) which is fixedly installed, the lifting guide rail (16-4) is movably connected with a manipulator (16-6) through a guide rail, a rodless cylinder (16-7) is further installed on the lifting guide rail (16-4), and the rodless cylinder (16-7) controls and connects the manipulator (16-6);
degassing ultrasonic cleaning tank (2) comprises a cleaning tank body (2-10), an overflow plate (2-8) is fixedly mounted at the left part of an inner cavity of the cleaning tank body (2-10), the cleaning tank body (2-10) is divided into two areas through the overflow plate (2-8), the left area of the overflow plate (2-8) is an overflow area (2-4), a communicating vessel (15-1) is arranged above the overflow area (2-4), a liquid storage tank (15) positioned at the rear part of the degassing ultrasonic cleaning tank (2) is connected through the communicating vessel (15-1), a discharge hole is formed in the bottom of the overflow area (2-4) and is connected with a first circulating pump (2-11) through a pipeline, the first circulating pump (2-11) is connected with a feed hole of a degassing tank (14), and the discharge hole of the degassing tank (14) is connected with the feed hole of the cleaning tank body (2-10) through the first circulating pump (2-11 The right side area of the overflow plate (2-8) is an ultrasonic cleaning area (2-5), an ultrasonic vibration box (2-7) is fixedly arranged on the inner wall of the bottom of the ultrasonic cleaning area (2-5), a throwing machine frame (2-2) is fixedly arranged on the inner wall of the rear part of the ultrasonic cleaning area (2-5), the upper part of the throwing machine frame (2-2) is connected with a manipulator assembly (16), a throwing cylinder (2-1) is arranged in the middle of the throwing machine frame (2-2), the throwing cylinder (2-1) is positioned behind a cleaning tank body (2-10), a roller assembly (2-9) is arranged in the ultrasonic cleaning area (2-5), a cooling coil (2-6) is arranged on the right side of the roller assembly (2-9), the roller assembly (2-9) is connected with a roller basket motor (2-3) through a chain, the basket rolling motor (2-3) is arranged above the cleaning tank body (2-10);
the vacuum ultrasonic rinsing tank (3) comprises a vacuum ultrasonic tank body (3-1), the top of the vacuum ultrasonic tank body (3-1) is movably connected with a first vacuum cover (3-2), the top of the first vacuum cover (3-2) is provided with a first vacuum moving cylinder (3-3), the left side and the right side of the first vacuum cover (3-2) are respectively provided with a first vacuum pressing cylinder (3-4), the first vacuum pressing cylinder (3-4) is fixedly arranged on an outer frame (17) through a support, the bottom of the vacuum ultrasonic tank body (3-1) is provided with a vacuum ultrasonic vibration box (3-9), the side surface of the vacuum ultrasonic vibration box (3-9) is provided with a first cooling coil (3-6), and a first tooling basket support (3-7) is arranged above the vacuum ultrasonic vibration box (3-9), two first rotary drums (3-8) are arranged in parallel in a first tool basket support (3-7), the rear ends of the rotary drums (3-8) are fixedly installed on the inner wall of the rear portion of the first tool basket support (3-7), the front portion of the first rotary drum (3-8) sequentially penetrates through the first tool basket support (3-7) and a vacuum ultrasonic tank body (3-1), the top ends of the first rotary drums (3-8) are connected with first rolling motors (3-5) through chains, the first rolling motors (3-5) are installed below the vacuum ultrasonic tank body (3-1), first vacuum pumps (3-11) are fixedly installed behind the vacuum ultrasonic tank body (3-1), the first vacuum pumps (3-11) are respectively connected with the vacuum ultrasonic tank body (3-1) and a degassing tank (14) through pipelines, a discharge hole of the vacuum ultrasonic tank body (3-1) is connected with a feed hole of the cleaning tank body (2-10) and a feed hole of the vacuum ultrasonic tank body (3-1) in a shunting manner through a second circulating pump (3-10);
the vacuum steam rinsing and drying tank (4) comprises a vacuum drying tank body (4-1), the top of the vacuum drying tank body (4-1) is movably connected with a second vacuum cover (4-2), the top of the second vacuum cover (4-2) is provided with a second vacuum moving cylinder (4-3), the left side and the right side of the second vacuum cover (4-2) are respectively provided with a second vacuum pressing cylinder (4-4), the second vacuum pressing cylinder (4-4) is fixedly arranged on an external frame (17) through a support, the bottom of the vacuum drying tank body (4-1) is provided with a second tool basket support (4-7), the inside of the second tool basket support (4-7) is provided with two second rotary drums (4-6) in parallel, the rear end of each second rotary drum (4-6) is fixedly arranged on the inner wall at the rear part of the second tool basket support (4-7), the front part of a second rotary drum (4-6) sequentially passes through a second tool basket support (4-7) and a vacuum drying groove body (4-1), the top end of the second rotary drum (4-6) is connected with a second rolling motor (4-5) through a chain, hot kerosene heating outer plates (4-8) are fixedly installed on two sides of the vacuum drying groove body (4-1), a second vacuum pump (4-9) is fixedly installed behind the vacuum drying groove body (4-1), the second vacuum pump (4-9) is connected with the vacuum drying groove body (4-1) through a pipeline, a discharge port of the vacuum drying groove body (4-1) is connected with a feed port of a vacuum buffer tank (7), and a discharge port of the vacuum buffer tank (7) is connected with a feed port of a vacuum ultrasonic groove body (3-1) through a third circulating pump (5-1);
the fresh liquid tank (5) is connected with the cleaning tank body (2-10) and the feeding port of the vacuum ultrasonic tank body (3-1) through a third circulating pump (5-1);
the device comprises a gas-liquid separation tank (6), a vacuum ultrasonic rinsing tank (3), a vacuum steam rinsing and drying tank (4), a second cooling coil (6-2), an exhaust valve (6-1), a third circulating pump (5-1), a third cooling coil;
the distillation kettle (9) is divided into an upper distillation kettle half part (9-1) and a lower distillation kettle half part (9-2), a feed inlet of the lower distillation kettle half part (9-2) is connected with one end of a liquid level regulator (11), the other end of the liquid level regulator (11) is connected with a liquid storage tank (15), a pipeline between the liquid level regulator (11) and the liquid storage tank (15) is connected with the outside of a heat exchanger (13), a hot kerosene heating pipe (9-4) is arranged in the lower distillation kettle half part (9-2), a hot kerosene heating jacket (9-3) is sleeved outside the lower distillation kettle half part (9-2), an oil inlet of the hot kerosene heating pipe (9-4) is connected with a hot kerosene heating component (12), the hot kerosene heating component (12) is connected with a hot kerosene tank (8), an oil outlet of the hot kerosene heating pipe (9-4) is connected with an oil inlet of the hot kerosene heating jacket (9-3), an oil outlet of a hot kerosene heating jacket (9-3) is connected with a hot kerosene heating outer plate (4-8), an oil outlet of the hot kerosene heating outer plate (4-8) is connected with a hot kerosene tank (8) through a pipeline, a steam outlet of the upper half part (9-1) of the distillation kettle is respectively connected with a vacuum drying groove body (4-1) and a feed inlet of a vacuum buffer tank (7) through a pipeline, an internal pipeline of a heat exchanger (13) is connected between the steam outlet of the upper half part (9-1) of the distillation kettle and the feed inlet of an empty buffer tank (7), a discharge outlet of the vacuum buffer tank (7) is connected with the feed inlet of a vacuum ultrasonic groove body (3-1), and a waste liquid port of the lower half part (9-2) of the distillation kettle is connected with a sewage tank (10).
2. A three-station vacuum ultrasonic hydrocarbon solvent full-automatic cleaning machine as claimed in claim 1, characterized in that the bottom end of the external frame (17) is provided with a plurality of supporting toes (19).
3. The full-automatic three-station vacuum ultrasonic hydrocarbon solvent cleaning machine as claimed in claim 1, wherein the rotary drum (3-8) and the vacuum ultrasonic tank body (3-1) are sealed by a framework sealing ring.
4. The three-station vacuum ultrasonic hydrocarbon solvent full-automatic cleaning machine as claimed in claim 1, wherein two groups of exhaust valves (6-1) are provided.
5. The three-station vacuum ultrasonic hydrocarbon solvent full-automatic cleaning machine as claimed in claim 1, wherein a liquid level ball valve is arranged in the liquid level regulator (11).
6. The three-station vacuum ultrasonic hydrocarbon solvent full-automatic cleaning machine as claimed in claim 1, wherein the vacuum buffer tank (7) is in a negative pressure state.
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| CN202010759159.7A CN111889453B (en) | 2020-07-31 | 2020-07-31 | Three-station vacuum ultrasonic hydrocarbon solvent full-automatic cleaning machine |
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