CN112591468A - Portable down feather recovery method - Google Patents
Portable down feather recovery method Download PDFInfo
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- CN112591468A CN112591468A CN202011314112.6A CN202011314112A CN112591468A CN 112591468 A CN112591468 A CN 112591468A CN 202011314112 A CN202011314112 A CN 202011314112A CN 112591468 A CN112591468 A CN 112591468A
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- collecting box
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- 210000003746 feather Anatomy 0.000 title claims abstract description 109
- 238000000034 method Methods 0.000 title claims abstract description 28
- 238000011084 recovery Methods 0.000 title claims abstract description 11
- 238000000605 extraction Methods 0.000 claims abstract description 76
- 230000000149 penetrating effect Effects 0.000 claims abstract description 10
- 230000008569 process Effects 0.000 claims abstract description 10
- 238000007906 compression Methods 0.000 claims abstract description 6
- 230000006835 compression Effects 0.000 claims abstract description 5
- 238000003825 pressing Methods 0.000 claims description 30
- 238000004064 recycling Methods 0.000 claims description 10
- 238000007789 sealing Methods 0.000 claims description 9
- 238000001179 sorption measurement Methods 0.000 claims description 8
- 230000009471 action Effects 0.000 claims description 7
- 230000007246 mechanism Effects 0.000 claims description 5
- 230000005484 gravity Effects 0.000 claims description 4
- 238000007599 discharging Methods 0.000 claims 1
- 238000007664 blowing Methods 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
- B65G53/04—Conveying materials in bulk pneumatically through pipes or tubes; Air slides
- B65G53/24—Gas suction systems
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D25/00—Details of other kinds or types of rigid or semi-rigid containers
- B65D25/02—Internal fittings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D25/00—Details of other kinds or types of rigid or semi-rigid containers
- B65D25/38—Devices for discharging contents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
- B65G53/34—Details
- B65G53/36—Arrangements of containers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G2201/00—Indexing codes relating to handling devices, e.g. conveyors, characterised by the type of product or load being conveyed or handled
- B65G2201/04—Bulk
Abstract
The invention discloses a portable down feather recovery method, which mainly comprises the following processing steps: the portable eiderdown recovery method comprises the steps of pipeline connection, primary extraction, compression, re-extraction and re-release, wherein the processing equipment used in the processing process comprises a collecting box, the side wall of the collecting box is inserted with an extraction pipe and an exhaust pipe in a penetrating manner, one end of the extraction pipe, which is far away from the collecting box, is fixed with an extraction suction head, the side wall of the exhaust pipe is inserted with a switching pipe in a penetrating manner, and the side wall of the switching pipe is inserted with an inflation pipe in a penetrating manner. Has the advantages that: according to the down feather collecting device, the air inflation fan and the extraction pipe are arranged, so that only two matched holes are needed to be formed when down feathers in an object are collected, the damage to the whole body is small, the integrity of the whole object is high, meanwhile, the collection of the down feathers is completed by blowing of wind power, compared with a suction mode, the down feathers are collected more easily and fully, and the down feather collecting process is more convenient.
Description
Technical Field
The invention relates to the technical field of down feather recovery, in particular to a portable down feather recovery method.
Background
Due to good heat insulation performance, the down feather is widely applied to the manufacturing industries of clothes and the like, particularly the production of down feather clothes, down feather sleeping bags and down feather quilts, the demand of the down feather is large, and the effective utilization and recovery of the down feather are essential;
the phenomenon of filling wrong down can occur in the manufacturing process of down products, and at the moment, the down needs to be recycled, but because most down products have narrow down channels, manual drawing is difficult, the whole product needs to be disassembled for recycling, so that time, labor and materials are wasted, and great troubles are caused in the production process; meanwhile, the down feather in the old down feather products can be taken out and filled in a new style, so that the production cost is saved, the waste of the down feather is avoided, but the down feather is taken out in the process relatively trouble, and therefore a method capable of easily recycling the down feather is urgently needed.
Disclosure of Invention
The invention aims to solve the problem of inconvenient down feather recovery in the prior art, and provides a portable down feather recovery method.
In order to achieve the purpose, the invention adopts the following technical scheme: a portable down feather recycling method mainly comprises the following processing steps:
s1, connecting pipes: inserting the open ends of the suction head and the air-filled fan into the object to be recovered, simply fastening and sealing the connection position, and tightly attaching the structure characteristic of the suction head to the interface position;
s2, preliminary extraction: opening valves inside the extraction pipe and the exhaust pipe, starting an inflation fan, and continuously inflating the articles to enable down feathers in the articles to move towards the interior of the extraction suction head with the only opening under the driving of wind power, so that the down feathers continuously enter the collection box through the extraction pipe, and airflow is discharged through the exhaust pipe after entering the collection box;
s3, compression and re-extraction: after extracting for a period of time, closing the inflation fan, moving the corresponding adsorption block to enable the pressing plate at the lower part to fall down so as to extrude down feather scattered in the collecting box, enabling the down feather to intensively move downwards and to be primarily compressed under the action of gravity of the pressing plate, then closing a valve in the extraction pipe, sealing a switching pipe, then opening the inflation fan to enable the inflation fan to extract gas in the collecting box, enabling the gas in the down feather gap to be sucked and penetrate through an extraction hole, enabling the down feather to be further compressed, and then re-opening the valve and the switching pipe in the extraction pipe;
s4, re-release: after down feather in an object is collected, when the down feather in the collecting box needs to be taken out, only the internal valves of the extraction pipe and the pressure release pipe need to be opened, and then the pressure release fan is started to inflate the internal valves of the collecting box, so that the gas volume in the originally compressed down feather space is increased, the pressing plate is pushed to move upwards to the position of the extraction pipe, and the down feather is discharged from the extraction pipe under the action of wind power;
the processing equipment used in the processing process of the portable down feather recovery method comprises a collecting box, wherein an extraction pipe and an exhaust pipe are inserted into the side wall of the collecting box in a penetrating mode, an extraction suction head is fixed at one end, far away from the collecting box, of the extraction pipe, a switching pipe is inserted into the side wall of the exhaust pipe in a penetrating mode, an inflation pipe is inserted into the side wall of the switching pipe in a penetrating mode, an inflation fan is fixed at one end, far away from the switching pipe, of the inflation pipe, a filter screen is fixed on the inner wall of the exhaust pipe, and a pressing mechanism is arranged inside the collecting box.
In the processing equipment, the pressing mechanism comprises a guide rod fixed at the bottom in the collecting box, the side wall of the guide rod is connected with two pressing plates in a sealing and sliding manner, the two pressing plates are connected with the inner wall of the collecting box in a sealing and sliding manner, the upper ends of the two pressing plates are fixed with magnetic blocks, the side walls of the two pressing plates are penetrated through and provided with air exhaust holes, one-way valves are arranged inside the air exhaust holes, the upper parts of the two pressing plates are fixed with intercepting nets, the intercepting nets correspond to the air exhaust holes, the top of the collecting box is provided with a sliding groove, and the inner wall of the sliding groove is connected with two adsorption blocks in a.
In the processing equipment, a pressure release pipe is inserted into the side wall of the lower part of the collecting box in a penetrating manner, a pressure release fan is fixed at one end of the pressure release pipe, which is far away from the collecting box, and valves are arranged inside the pressure release pipe, the extraction pipe and the extraction pipe.
Compared with the prior art, the invention has the advantages that:
1. according to the down feather collection device, the inflation fan and the extraction pipe are arranged, so that only two matched holes are needed to be formed when down feather in an object is collected, the damage to the whole body is small, the integrity of the whole object is high, meanwhile, the collection of the down feather is completed by blowing of wind power, compared with a suction mode, the down feather is collected more easily and fully, and the down feather collection process is more convenient;
2. according to the invention, the exhaust pipe is arranged, so that the gas source part of the inflation fan is the external air part and is the internal air of the collection box, the gas in the collection box can be utilized to complete the circular flow of the air flow, even if a small amount of fine down feather passes through the filter screen, the down feather can be collected again along with the air flow, the down feather collection process cannot be wasted, meanwhile, the down feather cannot pollute the environment, the working environment is safer, and the normal breathing of a user is not influenced;
3. according to the down feather collecting device, the pressing plate is arranged, and after down feathers are collected for a period of time, the pressing plate compresses the down feathers floating in the collecting box, so that the effective collecting space in the collecting box is enlarged, more down feathers can be collected into the collecting box, the space occupied by the down feather collection is reduced, a large number of down feathers can be easily recovered and collected, and the down feather collecting device is convenient to store and integrally transport;
4. according to the invention, by arranging the pressure release fan, when the recycled down feather needs to be released, the pressure inside the collecting box can be increased by opening the internal valves of the extraction pipe and the pressure release pipe and inflating the inside of the collecting box through the pressure release fan box, so that the down feather inside the collecting box is discharged from the extraction pipe along with the airflow, the release of the down feather is further completed, the whole machine is very convenient and controllable, and the loss of the down feather and the environmental pollution cannot be caused.
Drawings
FIG. 1 is a schematic structural view of a portable down feather recycling method according to the present invention;
fig. 2 is a top view of a portable down feather recycling method according to the present invention.
In the figure: the device comprises a collecting box 1, an extraction pipe 2, an extraction suction head 3, an extraction pipe 4, a transfer pipe 5, an inflation pipe 6, an inflation fan 7, a filter screen 8, a pressure release pipe 9, a pressure release fan 10, a guide rod 11, a pressing plate 12, an air extraction hole 13, a magnetic block 14, a sliding groove 15, an adsorption block 16 and an interception net 17.
Detailed Description
The following examples are for illustrative purposes only and are not intended to limit the scope of the present invention.
Examples
Referring to fig. 1-2, a portable down feather recycling method mainly comprises the following processing steps:
s1, connecting pipes: inserting the open ends of the extraction suction head 3 and the inflation fan 7 into an object to be recovered, simply fastening and sealing the connection position, and tightly attaching the structure characteristic of the extraction suction head 3 to the interface position;
s2, preliminary extraction: opening valves inside the extraction pipe 2 and the exhaust pipe 4, then starting the inflation fan 7 to continuously inflate the articles, so that the down feather in the articles moves towards the inside of the extraction suction head 3 with the only opening under the driving of wind power, the down feather continuously enters the collection box 1 from the extraction pipe 2, and the airflow is discharged from the exhaust pipe 4 after entering the collection box 1;
s3, compression and re-extraction: after extracting for a period of time, closing the air blower 7, moving the corresponding adsorption block 16 to enable the pressing plate 12 at the lower part to fall down, so as to extrude down feather flying in the collecting box 1, enabling the down feather to intensively move downwards and to be primarily compressed under the action of gravity of the pressing plate 12, then closing a valve in the extracting pipe 2, sealing the adapter pipe 5, then opening the air blower 7 to enable the air blower 7 to extract gas in the collecting box 1, enabling the gas in the down feather gap to be sucked and pass through the air extracting hole 13 to further compress the down feather, and then re-opening the valve in the extracting pipe 2 and the adapter pipe 5;
s4, re-release: after down feather in an object is collected, when the down feather in the collecting box 1 needs to be taken out, only the internal valves of the extraction pipe 2 and the pressure release pipe 9 need to be opened, and then the pressure release fan 10 is started to inflate the collecting box 1, so that the gas volume in the originally compressed down feather space is increased, the pressing plate 12 is pushed to move upwards to the position of the extraction pipe 2, and the down feather is discharged from the extraction pipe 2 under the action of wind power;
the processing equipment used in the processing process of the portable down feather recycling method comprises a collecting box 1, an extraction pipe 2 and an exhaust pipe 4 are inserted through the side wall of the collecting box 1, an extraction suction head 3 is fixed at one end, away from the collecting box 1, of the extraction pipe 2, a switching pipe 5 is inserted through the side wall of the exhaust pipe 4, an inflation pipe 6 is inserted through the side wall of the switching pipe 5, an inflation fan 7 is fixed at one end, away from the switching pipe 5, of the inflation pipe 6, a filter screen 8 is fixed on the inner wall of the exhaust pipe 4, and a compressing mechanism is arranged inside the collecting box 1;
the compressing mechanism comprises a guide rod 11 fixed at the bottom in the collecting box 1, the side wall of the guide rod 11 is connected with two pressing plates 12 in a sealing and sliding way, the two pressing plates 12 are connected with the inner wall of the collecting box 1 in a sealing and sliding way, the upper ends of the two pressing plates 12 are both fixed with a magnetic block 14, the side walls of the two pressing plates 12 are both provided with an air exhaust hole 13 in a penetrating way, a one-way valve is arranged in the air exhaust hole 13 to ensure that the air in the space where the down feather at the lower part of the, and prevent outside gas directly to get into, guarantee the validity of eiderdown compression collection, provide the air current passageway for follow-up release simultaneously, two clamp plates 12 upper portion all are fixed with interceptor net 17, interceptor net 17 and bleeder 13 position are corresponding, avoid eiderdown compression process eiderdown to leak, collecting box 1's top is seted up spout 15, the inner wall sliding connection of spout 15 has two to adsorb piece 16, adsorb piece 16 and magnetic path 14 and be the permanent magnet.
The side wall of the lower part of the collecting box 1 is inserted with a pressure release pipe 9 in a penetrating way, one end of the pressure release pipe 9 far away from the collecting box 1 is fixed with a pressure release fan 10, and valves are arranged inside the pressure release pipe 9, the extraction pipe 2 and the extraction pipe 4 and can be manually controlled to be opened and closed, so that the on-off of each pipeline is controlled.
In the invention, when recovering down feather in bedding and clothes, firstly, two extraction holes are arranged on an object, then openings of an extraction suction head 3 and an air blower 7 are respectively inserted into the two extraction holes so as to be communicated with the down feather inside, and the extraction suction head 3 is tightly attached to the object through a suction disc structure of the extraction suction head 3;
then, the valves in the extraction pipe 2 and the exhaust pipe 4 are opened, and the inflation fan 7 is started to inflate the interior of the article by the inflation fan 7, so that the interior of the article expands, the down feather in the interior floats under the driving of the air flow and moves to the position of the only opening, namely the extraction suction head 3, and the air flow carries the down feather to enter the collection box 1 through the extraction pipe 2, so that the collection of the down feather is realized;
when the inflation fan 7 works, part of gas input into an object is provided by the external environment, part of the gas is extracted from the air in the collection box 1, the air in the collection box 1 enters the adapter tube 5 through the exhaust tube 4, and then enters the inflation tube 6 synchronously with the external air, so that the air is filled into the object, down feather in the collection box 1 is intercepted by the filter screen 8, and then the down feather is effectively stored in the collection box 1, the airflow entering the collection box 1 is effectively removed, the internal space of the collection box 1 is ensured to be sufficient, and continuous down feather suction can be supported;
after a period of suction, a great deal of down feather scatters inside the collection box 1, occupying a large space, and a large amount of invalid space is wasted in the down feather gap, so that the inside of the collecting box 1 can not effectively enter the down feather, at the moment, the air charging fan 7 and the internal valve of the extraction pipe 2 push the adsorption block 16 to be dislocated with the magnetic block 14 at the corresponding position, thereby not attracting the magnetic block any more, leading the press plate 12 at the lower part to fall under the action of gravity and press down the scattered down, reducing the clearance of the down, then, the adapting pipe 5 is closed again, the air blower 7 is restarted, the air in the collecting box 1 is extracted by the air blower 7, the air quantity in the collecting box 1 is reduced, the down clearance is reduced, the down feather is compressed and collected, the pressing plate 12 is continuously moved downwards to press the down feather, the effective space in the collecting box 1 is increased, and the down feather can be continuously collected;
then the valve in the extraction pipe 2 is opened again, the adapter pipe 5 is opened, the down feather is collected continuously, another press plate 12 is released after a period of time, the down feather is compressed again, the internal space of the collection box 1 is fully utilized, and the down feather is collected as much as possible;
after down feather in an object is collected, when the down feather needs to be intensively released and reused, valves in an extraction pipe 2 and a pressure release pipe 9 are opened, then a pressure release fan 10 is started, the pressure release fan 10 inflates air into a collection box 1, the air quantity in the collection box 1 is increased, the air pressure is increased, a pressing plate 12 at the bottom is pushed to move upwards, the pressing plate 12 is moved to the position of the extraction pipe 2, in this state, the down feather in the collection box 1 enters the extraction pipe 2 under the driving of air flow and is then released outwards by the extraction pipe 2 until the down feather in the collection box 1 is completely released, two adsorption blocks 16 are reset to attract the magnetic blocks 14 again, and the whole device can be recovered;
the whole process of recovering and releasing down feather is as few as possible to damage objects, the space of the collecting box 1 is fully utilized, the down feather is stored without occupying too much space, the risk of escape of the down feather is eliminated, and the down feather recovering process cannot damage human bodies.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (3)
1. A portable down feather recycling method is characterized in that: the method mainly comprises the following processing steps:
s1, connecting pipes: inserting the open ends of the extraction suction head (3) and the air charging fan (7) into an object to be recovered, simply fastening and sealing the connection position, and tightly attaching the structure characteristic of the extraction suction head (3) to the interface position;
s2, preliminary extraction: opening valves inside the extraction pipe (2) and the exhaust pipe (4), then starting the inflation fan (7) to continuously inflate the articles, so that the down feather in the articles moves towards the inside of the extraction suction head (3) with the only opening under the driving of wind power, the down feather continuously enters the collection box (1) from the extraction pipe (2), and the airflow is discharged from the exhaust pipe (4) after entering the collection box (1);
s3, compression and re-extraction: after the down feather is extracted for a period of time, the inflation fan (7) is closed, the corresponding adsorption block (16) is moved, the pressing plate (12) at the lower part falls, and therefore down feather scattered in the collecting box (1) is extruded, the down feather is moved downwards in a concentrated mode and is primarily compressed under the action of gravity of the pressing plate (12), then the valve inside the extraction pipe (2) is closed, the adapter pipe (5) is sealed, the inflation fan (7) is started, the air inside the collecting box (1) is extracted by the inflation fan (7), and the air in the down feather gap is sucked and penetrates through the air extraction hole (13), so that the down feather is further compressed, and then the valve inside the extraction pipe (2) and the adapter pipe (5) are reopened;
s4, re-release: after down feather in an object is collected, when the down feather in the collecting box (1) needs to be taken out, only the internal valves of the extraction pipe (2) and the pressure release pipe (9) need to be opened, and then the pressure release fan (10) is started to inflate the collecting box (1) so as to increase the gas volume in the originally compressed down feather space, thereby pushing the pressing plate (12) to move upwards to the position of the extraction pipe (2) and discharging the down feather from the extraction pipe (2) under the action of wind power;
the processing equipment used in the processing process of the portable down feather recycling method comprises a collecting box (1), wherein the side wall of the collecting box (1) is penetrated and inserted with an extraction pipe (2) and an exhaust pipe (4), one end, far away from the collecting box (1), of the extraction pipe (2) is fixed with an extraction suction head (3), the side wall of the exhaust pipe (4) is penetrated and inserted with a switching pipe (5), the side wall of the switching pipe (5) is penetrated and inserted with an inflation pipe (6), one end, far away from the switching pipe (5), of the inflation pipe (6) is fixed with an inflation fan (7), the inner wall of the exhaust pipe (4) is fixed with a filter screen (8), and a compressing mechanism is arranged inside the collecting box (1).
2. A portable eiderdown recycling method according to claim 1 characterized in that the compacting means comprises a guiding rod (11) fixed to the bottom inside the collection box (1), the side wall of the guide rod (11) is hermetically and slidably connected with two pressing plates (12), the two pressing plates (12) are hermetically and slidably connected with the inner wall of the collecting box (1), the upper ends of the two pressing plates (12) are respectively fixed with a magnetic block (14), the side walls of the two pressing plates (12) are respectively provided with an air suction hole (13) in a penetrating way, a one-way valve is arranged inside the air suction hole (13), the upper parts of the two pressure plates (12) are both fixed with an interception net (17), the interception net (17) corresponds to the position of the air suction hole (13), the top of the collecting box (1) is provided with a sliding chute (15), the inner wall of the sliding groove (15) is connected with two adsorption blocks (16) in a sliding manner.
3. A portable down feather recovery method according to claim 1, wherein a pressure release pipe (9) is inserted through the lower side wall of the collection box (1), a pressure release fan (10) is fixed at one end of the pressure release pipe (9) far away from the collection box (1), and valves are arranged inside the pressure release pipe (9), the extraction pipe (2) and the extraction pipe (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011314112.6A CN112591468B (en) | 2020-11-21 | 2020-11-21 | Portable down feather recycling method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011314112.6A CN112591468B (en) | 2020-11-21 | 2020-11-21 | Portable down feather recycling method |
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| Publication Number | Publication Date |
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| CN112591468A true CN112591468A (en) | 2021-04-02 |
| CN112591468B CN112591468B (en) | 2022-10-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011314112.6A Active CN112591468B (en) | 2020-11-21 | 2020-11-21 | Portable down feather recycling method |
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| CN (1) | CN112591468B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111172629A (en) * | 2020-01-21 | 2020-05-19 | 苏州市纤维检验院 | Down feather component and content detection system and down feather quality detection method |
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| US20160235441A1 (en) * | 2013-10-22 | 2016-08-18 | Roger Parkin | Apparatus for extracting hair follicles for use in transplantation |
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| CN111172629A (en) * | 2020-01-21 | 2020-05-19 | 苏州市纤维检验院 | Down feather component and content detection system and down feather quality detection method |
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|---|---|
| CN112591468B (en) | 2022-10-18 |
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