CN109078400B - Circuit board processing exhaust-gas treatment equipment - Google Patents
Circuit board processing exhaust-gas treatment equipment Download PDFInfo
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- CN109078400B CN109078400B CN201811063164.3A CN201811063164A CN109078400B CN 109078400 B CN109078400 B CN 109078400B CN 201811063164 A CN201811063164 A CN 201811063164A CN 109078400 B CN109078400 B CN 109078400B
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- filter
- hood
- air
- dust
- sealing ring
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/56—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/0039—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with flow guiding by feed or discharge devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/66—Regeneration of the filtering material or filter elements inside the filter
- B01D46/79—Regeneration of the filtering material or filter elements inside the filter by liquid process
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B15/00—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area
- B08B15/02—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area using chambers or hoods covering the area
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The invention discloses a circuit board processing waste gas treatment device which comprises a board milling machine, wherein a hood is fixedly arranged on the board milling machine, dust generated in the working process of the board milling machine is covered by the hood to prevent the dust from diffusing outwards, two opposite side surfaces of the hood are respectively communicated with a reversing valve and an air pump through pipelines, air is pumped into the hood after the air pump is started, dust in the hood is driven by airflow to enter the reversing valve, and the reversing valve is respectively communicated with two filter cartridges through two air inlet pipes. Has the advantages that: the circuit board processing waste gas treatment equipment provided by the invention can realize long-time high-efficiency dust filtration, the filtration efficiency is not reduced, the corner crushed aggregates can be completely sucked away, the corner crushed aggregates cannot stay on the circuit board, the drilling of a milling machine cannot be influenced, and the practicability is good.
Description
Technical Field
The invention relates to the field of circuit board production and processing, in particular to a circuit board processing waste gas treatment device.
Background
At present, in the circuit board processing process, dust and corner crushed aggregates generated when a circuit board is drilled by using a board milling machine are generally absorbed through a dust absorption pipe and are timely sucked away and removed. However, this method still has some problems during use; for example, chinese patent application No. 201220614645.0 discloses a dust-containing waste gas treatment device for a circuit board routing machine; belongs to the technical field of circuit board waste gas treatment equipment; the device is characterized by comprising air suction pipes distributed on the side edge of the end of a plate milling machine, wherein the air suction pipes are connected with a crushed aggregate settling tower through pipelines, the upper part of the crushed aggregate settling tower is connected with an exhaust pipe through a pipeline, a dust suction fan is arranged on the exhaust pipe through a pipeline, a water storage pool is arranged at the tail end of the exhaust pipe, and an air outlet of the exhaust pipe is arranged in water below the water level of the water storage pool;
adopt the mode of breathing in among the above-mentioned patent to suck away the dust and the corner crushed aggregates that produce among the drilling process and filter, however, be subject to the diameter of pipeline, corner crushed aggregates and dust can not in time, all be inhaled gas transmission pipeline, lead to corner crushed aggregates and dust to stop on the circuit board and influence the drilling, filter screen (cotton) that filter the dust moreover just gather a large amount of dust after using a period, block up filter screen (cotton), make its filtration efficiency descend.
Disclosure of Invention
The invention aims to solve the problems that a traditional waste gas treatment device for a board milling machine in the prior art cannot maintain long-time high-efficiency dust filtration, the filtration efficiency is reduced after the traditional waste gas treatment device for the board milling machine is used for a period of time, and corner crushed aggregates and dust cannot be sucked into a gas transmission pipeline in time and completely, so that the corner crushed aggregates and the dust stay on a circuit board to influence the drilling of the board milling machine. According to the technical scheme, the dust can be efficiently filtered for a long time, the filtering efficiency is not reduced, the corner crushed aggregates can be completely sucked away, the corner crushed aggregates cannot stay on the circuit board, the drilling of a board routing machine cannot be influenced, the practicability is good, and the like, and the technical effects are explained in detail below.
In order to achieve the purpose, the invention provides the following technical scheme:
the invention provides a circuit board processing waste gas treatment device which comprises a board milling machine, wherein a hood is fixedly installed on the board milling machine, dust generated in the working process of the board milling machine is covered by the hood to prevent the dust from diffusing outwards, two opposite side surfaces of the hood are respectively communicated with a reversing valve and a gas pump through pipelines, air is pumped into the hood after the gas pump is started, air flow drives dust in the hood to enter the reversing valve, the reversing valve is respectively communicated with two filter cartridges through two air inlet pipes, the lower ends of the two filter cartridges extend into a cleaning box and are fixedly connected with the cleaning box, the upper ends of the two filter cartridges are communicated with a gas pipe, the other end of the gas pipe is communicated with the hood, and dust-containing air in the reversing valve enters the filter cartridges to be filtered and then returns to the hood through the gas pipe for;
the filter comprises a sealing ring tightly attached to the inner wall of the filter cartridge and filter cotton arranged on the inner side of the sealing ring, the sealing ring is made of flexible materials, a plurality of sliding blocks in sliding fit with the sliding grooves are fixedly arranged on the outer wall of the sealing ring, clamping grooves are formed in the sliding blocks, and the sliding blocks are clamped in the sliding grooves through the clamping grooves and cannot be separated from the sliding grooves;
an access door is arranged at the upper end of the filter cylinder, a roller frame is arranged on the access door, a rope winding roller and a rope winding motor for driving the rope winding roller to rotate are arranged on the roller frame, a pull rope is wound on the rope winding roller, and the lower end of the pull rope is fixedly connected with the filter;
the side wall of one end, extending into the cleaning box, of the lower part of the filter cartridge is provided with a plurality of through grooves, an extrusion plate is arranged in each through groove, the side surface of each extrusion plate is fixedly connected with a submersible electric-hydraulic push rod, and the extrusion plates are pushed by the submersible electric-hydraulic push rods to move towards the central axis of the filter cartridge to be close to the extrusion filter; the cleaning box is also provided with a water inlet pipe and a water outlet pipe.
As an important design of the scheme, an air hood is arranged between the two air inlet pipes and the hood.
As the optimal design of the scheme, the sliding block is made of metal.
As the optimized design of the scheme, the lower end of the pull rope is divided into a plurality of rope ends, wherein the rope ends are fixedly connected with the upper surface of the sealing ring, and the rope ends are uniformly distributed on the upper surface of the sealing ring.
As the optimal design of the scheme, the through grooves are arranged on the side wall of the filter cylinder in pairs, and each pair of through grooves is symmetrically arranged at two ends of the side wall of the filter cylinder.
As the optimization design of the scheme, the air inlet pipe is obliquely and upwards communicated with the filter cylinder.
As the optimized design of the scheme, a plurality of through holes are formed in the outer wall of the sealing ring.
By adopting the technical scheme, when the cleaning machine is used, the water inlet pipe is firstly opened to fill the cleaning box with water, then the drain pipe is opened to keep the water in the cleaning box flowing (the cleaning box is still in a full water state in the flowing process), then the air pump is started to pump air into the hood, the air blows off the corner crushed aggregates and dust generated in the working process of the gong-and-go machine and enters the reversing valve through the air hood, so that the corner crushed aggregates and dust are not remained in the hood, the corner crushed aggregates can be completely blown off and can not stay on the circuit board, the drilling of the gong-and-go machine is not influenced, the practicability is good, the corner crushed aggregates and dust enter a filter cylinder through the air inlet pipe, the corner crushed aggregates and dust rise in the filter cylinder and are filtered and blocked by the filter, then, the clean air returns to the interior of the hood through the air delivery pipe for secondary utilization, and a large amount of, the filtration efficiency is reduced, at the moment, the reversing valve is controlled to act to enable the corner crushed aggregates and the dust to enter into the other filter cylinder and be filtered by the other filter cylinder, meanwhile, the rope winding motor in the filter cylinder before control rotates to drive the pull rope to unfold and put down the filter, the filter descends along the sliding groove and falls into the water in the cleaning box, then the submersible electro-hydraulic push rod is started to push the extrusion plate to extrude the filter repeatedly, so that the filter cotton is contracted and expanded repeatedly, thereby completing the rubbing and washing of the filter cotton, controlling the rope winding motor to rotate and pulling the filter back to the original position through the pull rope after the washing is completed, when the filter which is used for removing dust is used for a period of time, the reversing valve can be controlled to act to ensure that the cleaned filter filters the leftover bits and pieces and dust, and then cleaning the filter to be cleaned, and repeating the steps in such a way, wherein the two filters are alternately used to maintain the high-efficiency filtration of the filter.
Has the advantages that: the circuit board processing waste gas treatment equipment provided by the invention can realize long-time high-efficiency dust filtration, the filtration efficiency is not reduced, the corner crushed aggregates can be completely sucked away, the corner crushed aggregates cannot stay on the circuit board, the drilling of a milling machine cannot be influenced, and the practicability is good.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a front view of the present invention;
FIG. 2 is a top view of the present invention;
FIG. 3 is an internal structural view of the filter cartridge and the cleaning tank of the present invention;
FIG. 4 is an enlarged partial view of FIG. 3 of the present invention;
fig. 5 is a schematic view of the structure of the filter of the present invention.
The reference numerals are explained below:
1. routing a board machine; 2. a hood; 3. an air pump; 4. a diverter valve; 5. a gas hood; 6. an air inlet pipe; 7. a filter cartridge; 8. a gas delivery pipe; 9. an access door; 10. a cleaning tank; 11. a drain pipe; 12. a water inlet pipe; 13. a submersible electro-hydraulic push rod; 14. a pressing plate; 15. a through groove; 16. a chute; 17. a seal ring; 18. pulling a rope; 19. a rope winding roller; 20. a rope winding motor; 21. a roller frame; 22. a slider; 23. a card slot; 24. filtering cotton; 25. and a through hole.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.
Referring to fig. 1-2, the circuit board processing waste gas treatment equipment provided by the invention comprises a board milling machine 1, a hood 2 is fixedly mounted on the board milling machine 1, the dust generated in the working process of the plate milling machine 1 is covered by the machine cover 2 to prevent the dust from diffusing outwards, two opposite side surfaces of the machine cover 2 are respectively communicated with the reversing valve 4 and the air pump 3 through pipelines, air is pumped into the machine cover 2 after the air pump 3 is started, the dust in the machine cover 2 is driven by air flow to enter the reversing valve 4, the reversing valve 4 is respectively communicated with the two filter cartridges 7 through two air inlet pipes 6, the lower ends of the two filter cartridges 7 extend into the cleaning box 10 and are fixedly connected with the cleaning box 10, the upper ends of the two filter cartridges 7 are communicated with the air pipe 8, the other end of the air pipe 8 is communicated with the machine cover 2, and the dust-containing air in the reversing valve 4 enters the filter cartridges 7 to be filtered and then returns to the machine;
referring to fig. 3-5, a plurality of sliding grooves 16 are vertically arranged on the inner wall of the filter cartridge 7, the sliding grooves 16 are used for sliding up and down of a sliding block 22 to ensure that the filter can slide up and down smoothly without rotation, the filter is vertically and slidably mounted in the filter cartridge 7 and comprises a sealing ring 17 tightly attached to the inner wall of the filter cartridge 7 and filter cotton 24 arranged on the inner side of the sealing ring 17, the filter cotton 24 is used for filtering corner crushed aggregates and dust in air, the sealing ring 17 is used for tightly attaching to the inner wall of the filter cartridge 7 to prevent the dust from passing through the filter along the inner wall of the filter cartridge 7 to ensure that the corner crushed aggregates and the dust are all filtered, the sealing ring 17 is made of a flexible material, so that the squeezing plate 14 is convenient to squeeze the filter cotton 24, a plurality of sliding blocks 22 in sliding fit with the sliding grooves 16 are fixedly mounted on the outer wall of the sealing ring, due to the design, when the filter cotton 24 is extruded, the clamping block cannot be separated from the sliding groove 16, the subsequent pull rope 18 can smoothly pull the filter to ascend, and the design requires that a seller ring has good elasticity and cannot be broken even if the seller ring is extruded by the extrusion plate 14;
referring to fig. 3-4, an access door 9 is provided at the upper end of the filter cartridge 7, the access door 9 is convenient for detecting a rope winding motor 20 and a rope winding roller 19, a roller frame 21 is provided on the access door 9, the rope winding roller 19 and the rope winding motor 20 driving the rope winding roller 19 to rotate are provided on the roller frame 21, a pulling rope 18 is wound on the rope winding roller 19, and the lower end of the pulling rope 18 is fixedly connected with the filter;
referring to fig. 3, a plurality of through grooves 15 are formed in the side wall of one end of the lower portion of the filter cartridge 7, which extends into the cleaning tank 10, the through grooves 15 facilitate the extrusion plates 14 to enter and exit the filter cartridge 7, an extrusion plate 14 is arranged in each through groove 15, the side surface of each extrusion plate 14 is fixedly connected with a submersible electric-hydraulic push rod 13, and the submersible electric-hydraulic push rod 13 pushes the extrusion plates 14 to move towards the central axis of the filter cartridge 7 to approach the filter; the washing tank 10 is further provided with a water inlet pipe 12 and a water outlet pipe 11.
As optional implementation mode, be provided with air shroud 5 between two intake pipes 6 and aircraft bonnet 2, design like this for the air cross section that gets into in aircraft bonnet 2 is great, guarantees that the corner crushed aggregates in aircraft bonnet 2 and dust are all blown away, compares traditional dependence and breathes in and siphons away the mode of corner crushed aggregates and dust, has effectively solved the problem that corner crushed aggregates and dust remain on the circuit board.
The sliding block 22 is made of metal, the hardness of the metal is high, and the sliding block 22 and the sliding groove 16 cannot fall off when the sealing ring 17 is extruded.
The lower end of the pull rope 18 is divided into a plurality of rope ends, the rope ends are fixedly connected with the upper surface of the sealing ring 17, and the rope ends are uniformly distributed on the upper surface of the sealing ring 17, so that the design is realized, the pull rope 18 can be used for stably pulling the filter, and the filter cannot incline when rising.
The plurality of through slots 15 are arranged on the side wall of the filter cartridge 7 in pairs, and each pair is symmetrically arranged at two ends of the side wall of the filter cartridge 7, so that the extruding plates 14 are conveniently arranged in pairs.
Intake pipe 6 slope upwards communicates with cartridge filter 7, and design like this, the corner crushed aggregates directly upwards flows after dust gets into cartridge filter 7, is filtered by the filter fast, therefore the corner crushed aggregates does not stop in cartridge filter 7 with the dust, and filter speed is fast, efficient.
A plurality of through holes 25 are formed in the outer wall of the sealing ring 17, so that water absorption and drainage in the extrusion process of the filter cotton 24 are facilitated.
By adopting the technical scheme, when the cleaning machine is used, the water inlet pipe 12 is firstly opened to fill the cleaning box 10 with water, then the drain pipe 11 is opened to keep the water in the cleaning box 10 flowing (the cleaning box 10 is still in a full water state in the flowing process), then the air pump 3 is started to pump air into the hood 2, the air blows away the corner crushed aggregates and dust generated in the working process of the gong-and-go machine 1 and enters the reversing valve 4 through the air hood 5, therefore, the corner crushed aggregates and dust are not remained in the hood 2, the corner crushed aggregates can be completely blown away and can not stay on the circuit board, the drilling of the gong-and-go machine 1 is not influenced, the practicability is good, then the corner crushed aggregates and dust rise in the filter cylinder 7 and are filtered and blocked by the filter, then the clean air returns to the hood 2 through the air conveying pipe 8 to be reused, and after the cleaning machine works for a period of time, the filter in the filter cylinder 7 accumulates a large amount of dust, the filtering efficiency is reduced, at the moment, the reversing valve 4 is controlled to move to enable the corner crushed aggregates and the dust to enter into another filter cylinder 7, the other filter cylinder 7 filters the corner crushed aggregates and the dust, meanwhile, the rope winding motor 20 in the previous filter cylinder 7 is controlled to rotate to drive the pull rope 18 to expand and put down the filter, the filter descends along the chute 16 to fall into the water in the cleaning box 10, then, the diving electro-hydraulic push rod 13 is started to repeatedly push the extrusion plate 14 to extrude the filter, so that the filter cotton 24 is repeatedly contracted and expanded, the scrubbing of the filter cotton 24 is completed, after the cleaning is completed, the rope winding motor 20 is controlled to rotate to pull the filter back to the original position through the pull rope 18, after the filter which is dedusting is used for a period, the reversing valve 4 can be controlled to move to enable the cleaned filter, and then cleaning the filter to be cleaned, and repeating the steps in such a way, wherein the two filters are alternately used to maintain the high-efficiency filtration of the filter.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (1)
1. The utility model provides a circuit board processing exhaust-gas treatment equipment, includes gong trigger (1), its characterized in that: a hood (2) is fixedly arranged on the board milling machine (1), dust generated in the working process of the board milling machine (1) is covered by the hood (2) to prevent the dust from diffusing outwards, the two opposite side surfaces of the hood (2) are respectively communicated with the reversing valve (4) and the air pump (3) through pipelines, air is pumped into the hood (2) after the air pump (3) is started, dust in the hood (2) is driven by air flow to enter the reversing valve (4), the reversing valve (4) is respectively communicated with the two filter cartridges (7) through the two air inlet pipes (6), the lower ends of the two filter cartridges (7) extend into the cleaning box (10) and are fixedly connected with the cleaning box (10), the upper ends of the two filter cartridges (7) are communicated with the air pipe (8), the other end of the air pipe (8) is communicated with the hood (2), and dust-containing air in the reversing valve (4) enters the filter cartridges (7) to be filtered and then returns to the hood (2) through the air pipe (8) for secondary utilization;
a plurality of sliding grooves (16) are vertically arranged on the inner wall of the filter cartridge (7), a filter is vertically installed in the filter cartridge (7) in a sliding manner, the filter comprises a sealing ring (17) tightly attached to the inner wall of the filter cartridge (7) and filter cotton (24) arranged on the inner side of the sealing ring (17), the sealing ring (17) is made of flexible materials, a plurality of sliding blocks (22) in sliding fit with the sliding grooves (16) are fixedly installed on the outer wall of the sealing ring (17), clamping grooves (23) are formed in the sliding blocks (22), and the sliding blocks (22) are clamped in the sliding grooves (16) through the clamping grooves (23) and cannot be separated from the sliding grooves (16);
an access door (9) is arranged at the upper end of the filter cartridge (7), a roller frame (21) is mounted on the access door (9), a rope winding roller (19) and a rope winding motor (20) for driving the rope winding roller (19) to rotate are mounted on the roller frame (21), a pull rope (18) is wound on the rope winding roller (19), and the lower end of the pull rope (18) is fixedly connected with the filter;
a plurality of through grooves (15) are formed in the side wall of one end, extending into the cleaning box (10), of the lower portion of the filter cartridge (7), an extrusion plate (14) is arranged in each through groove (15), the side face of each extrusion plate (14) is fixedly connected with a submersible electric-hydraulic push rod (13), and the extrusion plates (14) are pushed by the submersible electric-hydraulic push rods (13) to move towards the central axis of the filter cartridge (7) to be close to the filter to be extruded; the cleaning box (10) is also provided with a water inlet pipe (12) and a water outlet pipe (11);
an air hood (5) is arranged between the two air inlet pipes (6) and the hood (2);
the sliding block (22) is made of metal;
the lower end of the pull rope (18) is divided into a plurality of rope ends, wherein the rope ends are fixedly connected with the upper surface of the sealing ring (17), and the rope ends are uniformly distributed on the upper surface of the sealing ring (17);
the through grooves (15) are arranged on the side wall of the filter cylinder (7) in pairs, and each pair of through grooves is symmetrically arranged at two ends of the side wall of the filter cylinder (7);
the air inlet pipe (6) is communicated with the filter cylinder (7) in an upward inclined manner;
and a plurality of through holes (25) are formed in the outer wall of the sealing ring (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811063164.3A CN109078400B (en) | 2018-09-12 | 2018-09-12 | Circuit board processing exhaust-gas treatment equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811063164.3A CN109078400B (en) | 2018-09-12 | 2018-09-12 | Circuit board processing exhaust-gas treatment equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109078400A CN109078400A (en) | 2018-12-25 |
| CN109078400B true CN109078400B (en) | 2020-12-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811063164.3A Active CN109078400B (en) | 2018-09-12 | 2018-09-12 | Circuit board processing exhaust-gas treatment equipment |
Country Status (1)
| Country | Link |
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| CN (1) | CN109078400B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115591346B (en) * | 2022-10-28 | 2023-09-05 | 江阴市新德建设工程有限公司 | Building construction ground dust collection and fall device |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2429035A1 (en) * | 1978-06-23 | 1980-01-18 | Fives Cail Babcock | Dust filter, for gases, with reverse blowing cleaning - has filter element with separate sections and blowing box sealing on face of each section in turn |
| US5298162A (en) * | 1986-04-29 | 1994-03-29 | Kurt W. Niederer | Multi-stage fluid filter |
| CN201930659U (en) * | 2011-01-05 | 2011-08-17 | 上海科庆自动化设备有限公司 | Alternatively-used double air filters with three-position two-way plane capable of rotating and exchanging |
| CN203281569U (en) * | 2013-05-07 | 2013-11-13 | 滑璐蓺 | Dust removal filter drum and filter element cleaning machine |
| CN203829762U (en) * | 2014-01-21 | 2014-09-17 | 马鞍山汉思生物科技有限公司 | Cross filtering device |
| CN203842361U (en) * | 2014-05-28 | 2014-09-24 | 广东博宇集团有限公司 | Filter with a filter cotton washing device in aquarium or garden pond |
| CN104258654B (en) * | 2014-09-29 | 2015-11-11 | 湖南正大轻科机械有限公司 | A kind of cartridge cleaning device |
| CN104667650B (en) * | 2015-02-28 | 2016-08-24 | 成都易态科技有限公司 | Filter core cleaning method |
| DE112015006434A5 (en) * | 2015-04-10 | 2017-12-21 | Fsp Fluid Systems Partners Holding Ag | FILTER DEVICE |
| CN206715537U (en) * | 2017-02-23 | 2017-12-08 | 天津宏硕机织地毯有限公司 | A kind of braiding carpet workshop fibrous recovery unit |
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2018
- 2018-09-12 CN CN201811063164.3A patent/CN109078400B/en active Active
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Effective date of registration: 20201119 Address after: Room 718, building 3, oujingyuanshu, Wolong street, Jianshan town, Pan'an County, Jinhua City, Zhejiang Province Applicant after: Pan'an yangdan Technology Co.,Ltd. Address before: 322300 1, unit 2, 4 Longshan Road, Panan, Jinhua, Zhejiang Province, 1 Applicant before: Ge Yingdong |
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Effective date of registration: 20221103 Address after: No. 11, Bangmin Road, Jiangmen, Guangdong 529000 Patentee after: JIANGMEN HAOYUAN ELECTRONIC TECHNOLOGY Co.,Ltd. Address before: 322312 Room 718, Building 3, Oujingyuanshu, Wolong Street, Jianshan Town, Pan'an County, Jinhua City, Zhejiang Province Patentee before: Pan'an yangdan Technology Co.,Ltd. |
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