CN113373674B - Method for cleaning light sundries - Google Patents
Method for cleaning light sundries Download PDFInfo
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- CN113373674B CN113373674B CN202110608358.2A CN202110608358A CN113373674B CN 113373674 B CN113373674 B CN 113373674B CN 202110608358 A CN202110608358 A CN 202110608358A CN 113373674 B CN113373674 B CN 113373674B
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- 238000004140 cleaning Methods 0.000 title claims abstract description 35
- 238000000034 method Methods 0.000 title claims abstract description 20
- 230000007246 mechanism Effects 0.000 claims description 24
- 238000005192 partition Methods 0.000 claims description 10
- 239000012535 impurity Substances 0.000 claims 8
- 210000000085 cashmere Anatomy 0.000 claims 1
- 238000005265 energy consumption Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000007704 transition Effects 0.000 description 4
- 230000002159 abnormal effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 206010010904 Convulsion Diseases 0.000 description 1
- 230000003466 anti-cipated effect Effects 0.000 description 1
- 230000036461 convulsion Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
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Classifications
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06G—MECHANICAL OR PRESSURE CLEANING OF CARPETS, RUGS, SACKS, HIDES, OR OTHER SKIN OR TEXTILE ARTICLES OR FABRICS; TURNING INSIDE-OUT FLEXIBLE TUBULAR OR OTHER HOLLOW ARTICLES
- D06G1/00—Beating, brushing, or otherwise mechanically cleaning or pressure cleaning carpets, rugs, sacks, hides, or other skin or textile articles or fabrics
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Treatment Of Fiber Materials (AREA)
- Cleaning In General (AREA)
Abstract
The invention discloses a method for cleaning sundries such as thread ends, fluff and the like, which comprises the steps of firstly, sending an article into a fluff cleaning machine from an inlet of a channel, opening a first sliding door after a first door opening sensor senses the article, and closing the first sliding door and a third sliding door at two ends of the channel after the article completely enters the channel; starting a fan to clean sundries such as thread ends, fluff and the like on the surface of an article; the article moves towards the exit direction of the channel, when the second door opening sensor senses the article, the second sliding door is closed, so that the channel is divided into a first chamber and a second chamber, the article is located in the second chamber without wind power, then the third sliding door is opened, and after the article completely moves out of the channel, the third sliding door is closed, and the second sliding door is opened. According to the invention, after the articles are cleaned, the articles are moved to the second cavity without wind power, so that the influence on air draft cleaning in the first cavity caused by opening of the outlet sliding door is avoided, the wind power loss is reduced, and the energy consumption is reduced.
Description
Technical Field
The invention relates to the technical field of cleaning and removing fluff, in particular to a method for cleaning sundries such as thread ends, fluff and the like.
Background
The surface of the woolen fabrics such as clothes, quilt covers, quilts, especially blankets, can be stained with sundries such as thread ends, fluff and the like in the production process, so that the sundries on the surface of the blanket need to be cleaned. At present, the cleaning work needs to manually place blankets into a velvet sucking machine for cleaning, and then the blankets are taken out after being cleaned, the semi-automatic operation process belongs to, generally, a production line with 5 thousand blankets in output needs to be equipped with 4-6 workers, the work efficiency is low, and the labor cost is high.
The utility model discloses a (CN201520298073.3) discloses an automatic inhale first machine of line, be provided with movable cavity on inhaling first machine of line, movable cavity realizes hanging the assembly line cooperation with the ready-made clothes through the portable cover body, when the cover body is opened, the ready-made clothes of hanging on the assembly line can enter into movable cavity, then the cover body is closed, movable cavity only leaves the opening that supplies clothes hanger to pass at the top, the ready-made clothes that hang on clothes hanger is whole in confined movable cavity, open fan upper portion this moment and blow, with the adsorbed end of a thread on the ready-made clothes blow up, the import of inhaling the line pipeline has been seted up to movable cavity bottom, the end of a thread that blows down is inhaled the collection incasement under the effect of fan suction, inhale line completion back movable cover and open once more, clothes hanger shifts out movable cavity under the promotion of push rod, wait for next work. According to the scheme, after the ready-made clothes suction line is completed every time, the movable cover is opened to move out the ready-made clothes, so that a large amount of wind power is lost, the energy consumption is high, and the cleaning effect is also influenced.
Disclosure of Invention
The invention provides a method for cleaning sundries such as thread ends, fluff and the like, which can efficiently clean the sundries on the surface of an object, has low energy consumption and overcomes the problem of high cost in the prior art.
The invention discloses a method for cleaning sundries such as thread ends, fluff and the like, which comprises the following steps:
(1) the method comprises the following steps that articles are fed into a lint picker from an inlet of a channel, when a first door opening sensor senses the articles, a first sliding door is opened, when the articles completely enter the channel, the first door opening sensor and a first door closing sensor cannot sense the articles, and at the moment, a first sliding door and a third sliding door at two ends of the channel are closed;
(2) when the fan is started, wind flows in from the upper part of the channel and flows out from the lower part of the channel, so that sundries such as thread ends, fluff and the like on the surface of an article are sucked away;
(3) the article moves towards the exit direction of the channel, when the second door opening sensor senses the article, the second sliding door is closed, so that the channel is divided into a first chamber and a second chamber, the article is located in the second chamber without wind power, then the third sliding door is opened, after the article is completely moved out of the channel, the second door opening sensor and the second door closing sensor cannot sense the article, then the third sliding door is closed, and the second sliding door is opened.
According to the invention, the channel is divided into the first cavity and the second cavity, after sundries such as thread ends, fluff and the like on the surface of an article are cleaned, the article is moved to the second cavity without wind power, and at the moment, the second cavity is used as a transition cavity for moving the article out, so that the influence on air draft cleaning in the first cavity caused by opening of the outlet sliding door is avoided, the wind power loss is reduced, and the energy consumption is reduced.
Preferably, the bottoms of the first cavity and the second cavity are both provided with hollow partition plates, and the bottom of the second cavity is also provided with a hollow baffle plate; and after the second sliding door is opened, the air opening on the hollow partition plate is opened by the hollow baffle.
Preferably, the bottom of the first chamber is provided with a hollow partition plate, and the bottom of the second chamber is not communicated with the air duct. The second chamber is not communicated with the air duct, and after the second sliding door is closed, the second chamber without wind power is a transition chamber, so that the wind power loss caused by opening of the outlet sliding door can be avoided.
Preferably, the first door opening sensor and the second door opening sensor are correlation photoelectric sensors, and the first door closing sensor and the second door closing sensor are correlation grating sensors.
Preferably, the three sliding doors are opened and then moved into the accommodating cavity of the lint picker.
Preferably, the top end of the channel is provided with an opening, the opening is provided with an article conveying mechanism, the article conveying mechanism comprises two chains, the two chains are respectively sleeved on a group of chain wheels, and the two chains clamp the top of an article to convey the article.
The cleaning method of the invention is suitable for common articles and hanging articles. When the objects to be cleaned by the invention are common objects, the top end of the channel can be provided with only a small amount of air inlets to prevent sundries such as thread ends, fluff and the like from escaping to pollute the production environment, a conveying device is arranged in the channel to convey the objects from the inlet to the outlet of the channel, and the conveying device can adopt conventional modes such as a conveying track or a conveying belt. When the cleaning object is a hanging object, the top end of the channel is provided with an opening for the hanging object to pass through. Because the exhaust fan exhausts air, the articles are attracted downwards, and therefore the bearing of the hanging conveying line is increased. According to the invention, the top of an article is clamped by the two chains for conveying, and part of force is borne by the article conveying mechanism, so that the load of a hanging conveying line is reduced, and the article conveying mechanism forms a narrow gap avoiding the article at the opening of the channel, so that the opening of the channel can be partially blocked, the phenomenon that sundries such as thread ends and fluff run out to pollute the production environment is prevented, and the wind power loss is reduced.
Preferably, a sliding rail is arranged on the shell of the linter cleaning machine, and a sliding block matched with the sliding rail is arranged on the sliding door; the driving mechanism of the sliding door comprises an air cylinder, a rope and a movable pulley, wherein the air cylinder is installed on the shell, a piston rod of the air cylinder is connected with the movable pulley, one end of the rope is connected onto the shell, and the other end of the rope is connected onto the sliding door after bypassing the movable pulley. The driving mechanism of the sliding door utilizes the principle that the distance is saved by the movable pulley, and adopts one or more movable pulleys, thereby greatly shortening the stroke of the cylinder and further reducing the volume of the lint picker.
Preferably, the device further comprises a controller, and the article conveying mechanism, the driving mechanism for the sliding door, the sensor and the driving mechanism for the hollow baffle are all connected with the controller. The invention can automatically clean sundries on the surface of an article, is suitable for various working conditions, has high automation degree and improves the cleaning efficiency.
Preferably, four or more openable sliding doors are arranged in the channel along the direction of the articles to enter and exit. After the plurality of sliding doors are closed, the channel is divided into a plurality of chambers, and except the last chamber which can be used as a transition chamber, other chambers can be set with different wind power sizes for cleaning according to requirements or used as different cleaning processes.
Drawings
FIG. 1 is a state diagram of a cleaning machine for cleaning a blanket;
FIG. 2 is a schematic view of the overall structure of the pile clearer;
FIG. 3 is a perspective view of the pile clearer without a blanket conveying mechanism;
FIG. 4 is a bottom view of the linter of FIG. 3;
FIG. 5 is a view A-A of the linter of FIG. 4;
FIG. 6 is a perspective view of the clearer with the top cover plate omitted;
FIG. 7 is a schematic bottom structure view of the clearer without a bottom plate;
FIG. 8 is a view B-B of the linter of FIG. 4;
FIG. 9 is an enlarged view of a portion of the linter C of FIG. 8;
fig. 10 is a top view of the lint picker.
Reference numerals: 1. a housing; 1.1, an air duct; 1.2, a channel; 1.3, an accommodating cavity; 1.4, an air outlet; 1.5, hollowing out the partition plate; 1.6, a first sliding door; 1.7, a second sliding door; 1.8, a second sliding door; 1.9, hollowing out the baffle; 2. a blanket; 3. a carrier; 4. a first door opening sensor; 5. a first door-closing sensor; 6. a second door opening sensor; 7. a second door-closing sensor; 8. a cylinder; 9. a pulley; 10. a first fixed wheel; 11. a second fixed wheel; 12. a slide rail; 13. a slider; 14. a first chain; 15. and a second chain.
Detailed Description
The invention is further described below with reference to the following examples and the drawings.
As shown in fig. 1-3, the invention adopts a pile cleaning machine comprising a housing 1, which divides the housing 1 into an air duct 1.1, a passage 1.2 for passing the carpet and a containing cavity 1.3. The carpet 2 is mounted on a hanging conveyor line (not shown) by a carrier 3, the hanging conveyor line drives the carpet 2 to enter the passage 1.2 from the inlet of the carpet running passage at a constant speed, and it is anticipated that other conveying systems such as chain plates, conveying belts and the like can be adopted. The bottom of the channel 1.2 is communicated with an air duct 1.1, and the air duct 1.1 is connected with an exhaust fan through an air outlet 1.4, so that sundries on the blanket 2 are sucked away.
In order to prevent the carpet from falling off from the hanging conveying line due to overlarge suction force and being sucked away by the exhaust fan to cause damage to the carpet or the exhaust fan, as shown in fig. 4, a hollow partition board 1.5 is arranged at the bottom of a channel 1.2.
In order to achieve a better cleaning effect, the channel 1.2 is provided with three openable sliding doors. As shown in fig. 5 to 6, a first sliding door 1.6, a second sliding door 1.7 and a second sliding door 1.8 are arranged in sequence from the inlet to the outlet of the channel 1.2. When the three sliding doors are opened, the three sliding doors are moved into the accommodating cavity 1.3; when the sliding doors are closed, the three sliding doors move into the channel 1.2 to divide the channel 1.2 into chambers. A first chamber is arranged between the first sliding door 1.6 and the second sliding door 1.7, and a second chamber is arranged between the second sliding door 1.7 and the third sliding door 1.8. A first door opening sensor 4 and a first door closing sensor 5 are arranged on two sides of the first sliding door 1.6, and a second door opening sensor 6 and a second door closing sensor 7 are arranged on two sides of the third sliding door 1.8. Along the in-out direction of the blanket, a first door opening sensor 4 is arranged at the inlet of a first sliding door 1.6, and a first door closing sensor 5 is arranged at the outlet of the first sliding door 1.6; the second door opening sensor 6 is arranged at the inlet of the third sliding door 1.8, and the second door closing sensor 7 is arranged at the outlet of the third sliding door 1.8. The first door opening sensor 4 and the second door opening sensor 6 are correlation photoelectric sensors, and the first door closing sensor 5 and the second door closing sensor 7 are correlation grating sensors.
As shown in fig. 7, a hollow baffle 1.9 capable of opening and closing the air port is arranged at the hollow partition 1.5 at the bottom of the second chamber, the hollow baffle 1.9 is connected with a driving mechanism, and the driving mechanism is a cylinder. When the hollow air openings on the hollow baffle plates 1.9 correspond to the hollow air openings on the hollow partition plates 1.5, the air in the second cavity can flow to the air channel 1.1 through the hollow air openings, and when the entity on the hollow baffle plates 1.9 corresponds to the hollow air openings on the hollow partition plates 1.5, the air in the second cavity cannot flow to the air channel 1.1. The first door opening sensor 4, the first door closing sensor 5, the second door opening sensor 6, the second door closing sensor 7, the driving mechanism for moving the door and the driving mechanism for the hollow baffle 1.9 are all connected with the controller.
The method for cleaning the sundries such as thread ends, fluff and the like is specifically described by combining the fluff cleaning machine adopted by the invention.
Initial state: the first door 1.6 that moves, the third move a door 1.8 closed, the second moves a door 1.7 and opens, and fretwork baffle 1.9 is opened, and equipment is not circular telegram, and the pilot lamp is not bright, and the fan, step motor are out of work, and the suspension transfer chain that corresponds the station forbids the start.
Starting the equipment: the switch-on knob is pressed down, equipment is switched on, the power indicator lamp is fully bright, after the equipment indicator lamp is bright yellow light, the start button is pressed down, the equipment indicator lamp is bright green light, the fan is started, the stepping motor is coupled with the hanging conveyor line, and the hanging conveyor line can be normally started.
Normal use flow: the blanket 2 is being driven access way 1.2 by hanging the transfer chain, and first sensor 4 that opens the door senses blanket 2, and first move a 1.6 and open, also reach blanket 2 through the first sensor 5 response of closing the door behind the first 1.6 that moves, and blanket 2 gets into first cavity gradually, waits blanket 2 to get into first cavity completely, and first sensor 4 that opens the door and first sensor 5 that closes the door all can not respond to blanket 2 time, and first move a 1.6 and close. At this moment, the first sliding door 1.6 at the two ends of the channel 1.2 and the third sliding door 1.8 are both closed, the lower end of the channel 1.2 performs air draft, air flows in from the upper part of the channel 1.2 and finally flows out from the lower part of the channel 1.2, and is drawn away by the exhaust fan through the air channel 1.1, and the air cannot flow in from the two ends of the channel 1.2, so that a good air draft effect is achieved.
When the carpet 2 moves to the position where the second door opening sensor 6 senses the carpet, the second sliding door 1.7 and the hollowed-out baffle 1.9 are closed, and then the third sliding door 1.8 is opened, so that the first chamber is separated from the second chamber, and at the moment, the second chamber serves as a transition chamber for moving out the carpet 2. After the blanket 2 passes through the third sliding door 1.8, the second door closing sensor 7 senses the blanket 2, and after the blanket 2 is completely moved out, the second door opening sensor 6 and the second door closing sensor 7 can not sense the blanket 2, the third sliding door 1.8 is closed, and then the second sliding door 1.7 and the hollow baffle 1.9 are opened.
And (4) abnormal alarming: pressing down an emergency stop or detecting equipment abnormity, stopping the fan, lighting a red light by an equipment indicator light, sounding a buzzer, disconnecting the step motor from the hanging conveyor line, and forbidding starting of the hanging conveyor line corresponding to the station.
And (3) recovering the exception: after the corresponding abnormal problem is processed, a stop button is pressed, a red light of an equipment indicator lamp is turned off, a yellow light is turned on, a buzzer stops sounding, a start button is pressed, a green light of the equipment indicator lamp is turned on, a fan is started, a stepping motor is coupled with a hanging conveyor line, the hanging conveyor line can be normally started, and a normal use flow is entered.
In order to shorten the stroke of the sliding door driving mechanism, the invention adopts a double-pulley structure. As shown in fig. 8-9, the sliding door driving mechanism includes a cylinder 8 disposed on the housing 1, a piston rod of the cylinder 8 is connected to a base, two pulleys 9 are rotatably mounted on the base, and the two pulleys 9 are vertically disposed. Each pulley is provided with two wire grooves. A first fixed wheel 10 and a second fixed wheel 11 are provided on the housing 1 on the left and right sides of the pulley 9. One end of the rope is connected to the shell 1, then sequentially passes around one pulley, the first fixed pulley 10 and the other pulley, and the other end of the rope is connected with the sliding door. One end of the other rope is connected to the shell 1, then sequentially passes around one pulley, the second fixed pulley 11 and the other pulley, and the other end of the other rope is connected with the sliding door. The two ropes are respectively positioned in the two wire grooves of the pulley 9. With 2 pulleys, the stroke of the cylinder is shortened to 1/4. The shell body 1 is further provided with a sliding rail 12, the sliding door is provided with a sliding block 13, and the sliding block 13 is matched with the sliding rail 12, so that the sliding door can move along the sliding rail 12.
Because the air exhauster convulsions, the woollen blanket receives downward suction to increased the bearing of hanging the transfer chain, in order to alleviate the bearing of hanging the transfer chain, the top of passageway 1.2 is provided with woollen blanket conveying mechanism, including first chain 14 and second chain 15, overlap respectively on a set of sprocket, two chains move in opposite directions, respectively by motor drive, thereby the top of woollen blanket is being held by two chains, a part of component is born by conveying mechanism, thereby shared the bearing of hanging the transfer chain. The running speed of the chain is consistent with that of the hanging conveying line.
The above examples are only preferred embodiments of the present invention, it should be noted that: it will be apparent to those skilled in the art that various modifications and equivalents can be made without departing from the spirit of the invention, and it is intended that all such modifications and equivalents fall within the scope of the invention as defined in the claims.
Claims (8)
1. A method for cleaning light sundries is characterized by comprising the following steps:
(1) the method comprises the following steps that articles are fed into a lint picker from an inlet of a channel, when a first door opening sensor senses the articles, a first sliding door is opened, when the articles completely enter the channel, the first door opening sensor and a first door closing sensor cannot sense the articles, and at the moment, a first sliding door and a third sliding door at two ends of the channel are closed;
(2) the fan is started, and wind flows in from the upper part of the channel and flows out from the lower part of the channel, so that light impurities on the surface of the article are sucked away;
(3) the article moves towards the outlet direction of the channel, when the second door opening sensor senses the article, the second sliding door is closed, so that the channel is divided into a first chamber and a second chamber, the article is located in the second chamber without wind power, then the third sliding door is opened, after the article is completely moved out of the channel, the second door opening sensor and the second door closing sensor cannot sense the article, then the third sliding door is closed, and the second sliding door is opened; the bottom parts of the first cavity and the second cavity are both provided with hollow partition plates, and the bottom part of the second cavity is also provided with a hollow baffle plate; and after the second sliding door is opened, the air opening on the hollow partition plate is opened by the hollow baffle.
2. A method for cleaning light impurities according to claim 1, characterized in that: the first door opening sensor and the second door opening sensor are correlation photoelectric sensors, and the first door closing sensor and the second door closing sensor are correlation grating sensors.
3. A method for cleaning light impurities according to claim 1, characterized in that: the three sliding doors are opened and then moved into the accommodating cavity of the cashmere cleaning machine.
4. A method for cleaning light impurities according to any one of claims 1 to 3, characterized in that: the top end of the channel is provided with an opening, the opening is provided with an article conveying mechanism, the article conveying mechanism comprises two chains, the two chains are respectively sleeved on a group of chain wheels, and the two chains clamp the top of an article to convey the article.
5. The method for cleaning the light impurities, according to claim 4, is characterized in that: a sliding rail is arranged on the shell of the linter cleaning machine, and a sliding block matched with the sliding rail is arranged on the sliding door; the driving mechanism of the sliding door comprises an air cylinder, a rope and a movable pulley, wherein the air cylinder is installed on the shell, a piston rod of the air cylinder is connected with the movable pulley, one end of the rope is connected onto the shell, and the other end of the rope bypasses the movable pulley and then is connected onto the sliding door.
6. The method for cleaning the light impurities, according to claim 5, is characterized in that: the article conveying mechanism, the driving mechanism of the sliding door, the sensor and the driving mechanism of the hollow baffle are all connected with the controller.
7. A method for cleaning light impurities according to claim 4, characterized in that: along the in-and-out direction of the articles, four or more openable sliding doors are arranged in the channel.
8. A method for cleaning light impurities according to any one of claims 1 to 3, characterized in that: the light sundries are fluff and/or thread ends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110608358.2A CN113373674B (en) | 2021-06-01 | 2021-06-01 | Method for cleaning light sundries |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110608358.2A CN113373674B (en) | 2021-06-01 | 2021-06-01 | Method for cleaning light sundries |
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| CN113373674A CN113373674A (en) | 2021-09-10 |
| CN113373674B true CN113373674B (en) | 2022-08-19 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1268478A (en) * | 1999-03-24 | 2000-10-04 | 黄共才 | Civil building hydraulic elevator with variable balance weight device |
| CN203845645U (en) * | 2014-05-27 | 2014-09-24 | 济宁矿业集团有限公司 | Hydraulic semi-automatic tank curtain door of vertical shaft elevator |
| CN104190663B (en) * | 2014-08-29 | 2016-06-15 | 深圳市高科金信净化科技有限公司 | Wind drenches passage |
| CN106240299A (en) * | 2016-08-25 | 2016-12-21 | 安徽江淮松芝空调有限公司 | A kind of arc is heat insulation and the air door structure of wind direction regulation |
| CN208407907U (en) * | 2018-01-19 | 2019-01-22 | 国网浙江杭州市萧山区供电有限公司 | Airshower chamber and dust pelletizing system |
| CN208928741U (en) * | 2018-08-09 | 2019-06-04 | 浙江舜业净化科技有限公司 | A kind of energy-efficient Airshower chamber |
| CN212121062U (en) * | 2020-04-01 | 2020-12-11 | 信利光电股份有限公司 | Intelligent blowing and spraying system |
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Application publication date: 20210910 Assignee: NINGBO SUNRISE INDUSTRIAL AUTOMATION Co.,Ltd. Assignor: Zhejiang Ruifeng Intelligent Union of Things Technology Co.,Ltd. Contract record no.: X2023980053360 Denomination of invention: A method for cleaning lightweight debris Granted publication date: 20220819 License type: Common License Record date: 20231221 |
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