CN113721442A - Double-air-duct printer capable of comprehensively absorbing ink powder - Google Patents
Double-air-duct printer capable of comprehensively absorbing ink powder Download PDFInfo
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- CN113721442A CN113721442A CN202111007194.4A CN202111007194A CN113721442A CN 113721442 A CN113721442 A CN 113721442A CN 202111007194 A CN202111007194 A CN 202111007194A CN 113721442 A CN113721442 A CN 113721442A
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- 239000000843 powder Substances 0.000 title abstract description 5
- 239000000428 dust Substances 0.000 claims abstract description 96
- 238000004887 air purification Methods 0.000 claims abstract description 31
- 238000004140 cleaning Methods 0.000 claims abstract description 12
- 238000009434 installation Methods 0.000 claims description 23
- 230000009467 reduction Effects 0.000 claims description 14
- 238000009423 ventilation Methods 0.000 claims description 10
- 230000009977 dual effect Effects 0.000 claims description 8
- 230000008878 coupling Effects 0.000 claims description 5
- 238000010168 coupling process Methods 0.000 claims description 5
- 238000005859 coupling reaction Methods 0.000 claims description 5
- 230000000694 effects Effects 0.000 description 35
- 238000001914 filtration Methods 0.000 description 12
- 238000000034 method Methods 0.000 description 7
- 230000001965 increasing effect Effects 0.000 description 5
- 230000001681 protective effect Effects 0.000 description 5
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 150000001299 aldehydes Chemical class 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 231100000357 carcinogen Toxicity 0.000 description 1
- 239000003183 carcinogenic agent Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 229940088597 hormone Drugs 0.000 description 1
- 239000005556 hormone Substances 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 230000004060 metabolic process Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 230000028327 secretion Effects 0.000 description 1
- 239000003053 toxin Substances 0.000 description 1
- 231100000765 toxin Toxicity 0.000 description 1
- 108700012359 toxins Proteins 0.000 description 1
- PIILXFBHQILWPS-UHFFFAOYSA-N tributyltin Chemical compound CCCC[Sn](CCCC)CCCC PIILXFBHQILWPS-UHFFFAOYSA-N 0.000 description 1
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G21/00—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge
- G03G21/20—Humidity or temperature control also ozone evacuation; Internal apparatus environment control
- G03G21/206—Conducting air through the machine, e.g. for cooling, filtering, removing gases like ozone
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G15/00—Apparatus for electrographic processes using a charge pattern
- G03G15/65—Apparatus which relate to the handling of copy material
- G03G15/6529—Transporting
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G15/00—Apparatus for electrographic processes using a charge pattern
- G03G15/65—Apparatus which relate to the handling of copy material
- G03G15/6555—Handling of sheet copy material taking place in a specific part of the copy material feeding path
-
- 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
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Atmospheric Sciences (AREA)
- Biodiversity & Conservation Biology (AREA)
- Ecology (AREA)
- Environmental & Geological Engineering (AREA)
- Environmental Sciences (AREA)
- Control Or Security For Electrophotography (AREA)
Abstract
The invention relates to a double-air-duct printer capable of absorbing ink powder comprehensively, which comprises: printer organism, pipeline box, exit paper roller, deflector, pass paper roll, backplate wind channel, cylinder wind channel, air purification device. The protection plate air channel is a cavity, the protection plate air channel is arranged in front of the pipeline box, the protection plate air channel is arranged below the paper outlet roller, a plurality of holes are formed in the surface of the protection plate air channel, and the holes are communicated with the interior of the protection plate air channel; the paper conveying device is characterized in that the roller air duct is a roller, the roller air duct is arranged behind the paper conveying roller, the distance between the surface of the roller air duct and the surface of the paper conveying roller is matched with the thickness of paper, and a plurality of holes communicated with the inside of the roller air duct are formed in the surface of the roller air duct. The double-air-channel printer solves the technical problems of cleaning dust on two sides of paper and avoiding paper jam by arranging the double air channels in the printer.
Description
Technical Field
The invention relates to the field of printers, in particular to a double-air-channel printer capable of absorbing ink powder comprehensively.
Background
The carbon powder particles are generally only a few microns, and are difficult to discharge out of the body through metabolism after being inhaled by a human body. Generally, the toner used in the drum contains many metal dusts such as nickel, cobalt and mercury harmful to human body in addition to carbon black, iron oxide and polyester, and the contents of different products are different. In addition, toners also contain known carcinogens such as benzene, aldehydes, styrene, and the like. The color printing ink powder is more excellent in five toxins, such as tributyltin (Tributyzinn), and the secretion of human hormones can be endangered by parts per million, so that the number of sperms of men is reduced, and the women are sterile.
Among the prior art, environmental protection printer sets up the inlet scoop in printer deflector department, extracts the purification to printer inside air, and this can only clear up the dust that carries on one face of paper. The front end of the paper can be sunken in the air suction opening under the suction force of the air suction opening, so that the guide plate is prevented from guiding the paper, and the paper jam fault is generated. Therefore, a need exists for a dual air path environmentally friendly printer.
Disclosure of Invention
The invention aims to solve the technical problems of how to clean dust on two sides of paper and avoid paper jam, and provides a double-air-channel printer capable of absorbing toner comprehensively.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a dual air path printer that absorbs toner throughout, comprising: a printer body; the pipeline box is arranged at the rear upper part of the machine body; the paper outlet roller is arranged at the front part of the pipeline box; the guide plate is arranged at the rear part of the pipeline box; pass the paper roll, set up inside the pipeline box, pass the paper roll and set up in the deflector below, still include: the protective plate air channel is a cavity and is arranged in front of the pipeline box, the protective plate air channel is arranged below the paper outlet roller, and a plurality of holes are formed in the surface of the protective plate air channel and communicated with the interior of the protective plate air channel; the roller air duct is a roller and is arranged behind the paper conveying roller, the distance between the surface of the roller air duct and the surface of the paper conveying roller is matched with the thickness of paper, and a plurality of holes communicated with the inside of the roller air duct are formed in the surface of the roller air duct; air purification device, air purification device set up in pipeline box side, and air purification device passes through pipeline and the inside intercommunication in backplate wind channel, and air purification device passes through pipeline and the inside intercommunication in cylinder wind channel, and the air purification device outside communicates with external environment, and inside first fan and the filter screen of being provided with of air purification device.
The roller air duct is arranged behind the paper conveying roller, so that one side of the paper with the handwriting or the pattern can be cleaned; the guard plate air channel is arranged below the paper outlet roller, so that the back of the paper can be cleaned, and the purpose of cleaning dust on two sides of the paper is achieved.
The paper is conveyed to the paper outlet through the paper conveying roller, the roller air channel, the guide plate, the paper outlet roller and the protection plate air channel in sequence, and under the action of the roller air channel and the protection plate air channel, dust carried by two surfaces of the paper is cleaned by air flow, so that the dust carried on the paper is prevented from being leaked into the outside air. The roller air duct is matched with the paper conveying roller for conveying paper. An air channel is not arranged at the guide plate, and paper at the air channel of the roller is sunken into the hole, so that the paper conveying process of the air channel of the roller is not influenced, and the paper jam fault can be avoided.
Further, the method also comprises the following steps: the second fans are arranged inside the roller air duct and are transversely and uniformly distributed, and the directions of the second fans are matched with the flowing direction of the air flow.
Inside the cylinder wind channel, the lateral distribution of atmospheric pressure size is different, can lead to keeping away from air purification device's position department atmospheric pressure not enough, can't reach the effect that needs to the clearance of paper surface dust, makes the dust that the paper surface carried reveal in the air. And a plurality of second fans are transversely arranged in the roller air duct and used for compensating air pressure, so that the required effect of cleaning dust on the surface of the paper is achieved.
Furthermore, the holes in the roller air duct are only arranged on the surface of the roller air duct between the second fans.
If the inner wall of the roller air duct corresponding to the second fan is provided with the hole, the air flow pushed by the second fan can be discharged from the hole, and the power of the second fan is wasted. The air flow discharged from the holes can also obstruct the whole air flow and reduce the air suction effect of the roller air duct. The holes are formed in the surface of the roller air duct between the second fans, so that the second fans can push more air flows to the side under the matching of the inner wall of the roller air duct, the air suction effect of the roller air duct is improved, the air flow is bundled, and the air flows in different directions are prevented from forming turbulence to influence the dust discharge.
Further, the hole in the roller air flue is in a ring shape, the ring-shaped hole divides the roller air flue into a plurality of rings, the rings are fixed by a plurality of transverse connecting rods which are not higher than the surface of the roller air flue, a plurality of second fans are arranged in the rings, the second fans are arranged in the rings through a plurality of radial supporting rods, ventilation openings are formed between the supporting rods, and the second fans are connected with the motor.
The holes are arranged to be circular rings, so that the area of an air inlet is increased, the flow of air flow is increased, a stronger air suction effect is realized in the roller air channel, and the cleaning effect of the roller air channel on dust on the surface of paper is stronger.
Further, the roller duct further includes: the rubber face sets up in cylinder wind channel surface, and the distance on rubber face and the transfer roller surface suits with the thickness of paper.
Because the surface of the roller air duct is provided with a plurality of holes, the contact area between the roller air duct and the paper is reduced, the total friction force is reduced, and the phenomenon of sliding can occur in the conveying of the paper. The rubber surface is arranged on the surface of the roller air duct and used for increasing the friction force between the roller air duct and paper and preventing the paper from sliding.
Further, the method also comprises the following steps: the roller air duct is connected with a side plate of the pipeline box through a rotating structure, and a plurality of first air vents are arranged on the side surface of the roller air duct; the pipeline box is characterized in that a plurality of second vent holes are formed in a side plate of the pipeline box, the second vent holes are formed in the outer sides of the first vent holes, the second vent holes are matched with the first vent holes, and the second vent holes are communicated with the air purification device through a pipeline.
In order to realize the purpose of ventilation when the roller air duct rotates, a plurality of first air vents are arranged on the side surface of the roller air duct, and a plurality of second air vents matched with the first air vents are arranged on the side plate of the pipeline box. When the roller air duct rotates, the airflow in the roller air duct can enter the second air vents from the first air vents and finally enter the air purification device.
Furthermore, the side surface of the roller air duct and the side plate of the pipeline box are not arranged in a clinging manner; a rotary shaft core is arranged at the center of the side face of the roller air duct and is adaptive to the rotary axis of the roller air duct, a plurality of first support rods are arranged between the rotary shaft core and the edge of the side face of the roller air duct, the first support rods are arranged along the radial direction, two ends of each first support rod are respectively connected with the rotary shaft core and the edge of the side face of the roller air duct, a first vent is arranged between every two adjacent first support rods, inclined planes are arranged on the edges of the first support rods in the rotary direction, and the inclined planes are inclined inwards; the pipeline box is characterized in that a shaft joint corresponding to the rotary shaft core is arranged on a side plate of the pipeline box, the shaft joint is rotatably connected with the rotary shaft core through a bearing, a plurality of second supporting rods are arranged between the shaft joint and the side plate of the pipeline box, two ends of each second supporting rod are respectively connected with the side plates of the shaft joint and the pipeline box, and a second vent is arranged between every two adjacent second supporting rods.
When the roller air duct does not rotate, if the side face of the roller air duct is tightly attached to the side plate of the pipeline box, when the first air ports and the second air ports are staggered, the first air ports are blocked by the side plate of the pipeline box, the second air ports are blocked by the side face of the roller air duct, air cannot flow or only can flow small air, and the air purifying device cannot effectively purify the air inside the printer. The side of the roller air channel and the side plate of the pipeline box are not tightly attached to each other and are used for avoiding the blockage of the first air vents and the second air vents, so that the air purification device can continuously purify the air inside the printer. When the airflow flows through the first air vents, the airflow firstly flows through a gap between the side surface of the roller air duct and the side plate of the pipeline box and then enters the second air vents. The rotary shaft core is fixed by a plurality of first support rods, and the shaft joints are fixed by a plurality of second support rods, so that the rotation of the roller air duct is more stable. Set up the inclined plane on the direction of rotation border of a plurality of first bracing pieces, the inclined plane is to the inboard slope for when the cylinder wind channel is rotatory, make a plurality of first bracing pieces can promote the air current, accelerate the air current flow speed.
Further, the air purification device further comprises: the dust removal chamber is a cavity and is arranged on the side of the pipeline box, one end of the dust removal chamber is communicated with the external environment, and the other end of the dust removal chamber is respectively communicated with the interior of the roller air channel and the interior of the guard plate air channel through a pipeline; the speed reducing plates are plate-shaped and arranged in the dust chamber, the speed reducing plates are arranged along the airflow direction, and the speed reducing plates are arranged on the inner side of the filter screen; the deceleration surface is a wavy surface, the deceleration surface is a frosted surface, and the deceleration surface is arranged on the surface of the deceleration plate; the dust collecting groove is a groove and is arranged inside the dust removing chamber, the dust collecting groove is arranged below the plurality of speed reducing plates, and the dust collecting groove is arranged on the inner side of the filter screen.
The speed reduction surface is arranged on the surface of the speed reduction plate, the speed of the air flow is reduced by increasing the contact area and the roughness of the air flow, and the filtering effect of the filter screen on the air flow is enhanced. When the dust filtered by the filter screen reaches the limit, the dust collecting groove can collect the dust, and the replacement period of the filter screen is prolonged.
If the speed of the air flow is too fast, the filtering effect of the filter screen on the dust in the air flow is weakened. The inner wall of the dust removal chamber is provided with a decelerating surface for reducing the speed of the air flow and improving the filtering effect of the filter screen on dust in the air flow.
Further, the method also comprises the following steps: the limiting plate is plate-shaped, the limiting plate is arranged inside the dust chamber and outside the decelerating surface, the limiting plate and the dust chamber are in closed fit, and a vent is arranged in the center of the limiting plate; the installation box is a pipeline, the installation box is arranged in the dust chamber and is arranged on the outer side of the limiting plate, the inner side of the installation box is tightly matched with the limiting plate, the installation box is arranged along the airflow direction, a rough surface is arranged on the inner wall of the outer side of the installation box, a plurality of sliding blocks are arranged on the outer surface of the installation box, the sliding blocks are bulges and are matched with the inner wall of the dust chamber, and the installation box can slide in the dust chamber; the vent is only communicated with the interior of the mounting box; the filter screen is arranged in the mounting box; first fan sets up inside the mounting box, and first fan sets up in the filter screen outside, and first fan and air current direction cooperation are provided with a plurality of cylindrical archs between first fan and the mounting box, and on a plurality of cylindrical archs were fixed in the mounting box inner wall, cylindrical protruding setting along air current direction, cylindrical one end extended to the pipeline box outside, the appearance phase-match of a plurality of cylindrical archs and first fan, first fan can slide in the mounting box.
The filtering effect of the filter screen can be weakened along with the use time, and the dust filtering effect is finally lost. Set up slidable mounting box in the clean room for filter screen in the mounting box is changed. And a plurality of sliding blocks are arranged on the outer surface of the mounting box and used for reducing the friction between the mounting box and the dust removal chamber. A slidable first fan is arranged in the mounting box and used for conveniently repairing the fault of the first fan. Set up the limiting plate in the speed reduction face outside for prevent that the mounting box from damaging the speed reduction face, prevent that unfiltered air from revealing the outside air by the gap between the slider in, cause the pollution to the outside air. The protrusions are arranged in a cylindrical shape, and the contact surface between the cylindrical shape and the surface is small, so that friction force is reduced.
Further, the method also comprises the following steps: the guard plate air duct is transversely fixed in front of the pipeline box; a plurality of holes on the backplate wind channel evenly set up in backplate wind channel surface along horizontal, and a plurality of holes on the backplate wind channel only set up in the upper surface and the lower surface in backplate wind channel.
A plurality of holes are transversely and uniformly formed in the guard plate air duct, and the cleaning effect on the surface of the paper is improved. Only set up a plurality of holes in the upper surface and the lower surface in backplate wind channel for make the backplate wind channel can realize stronger clearance effect to paper surface and backplate wind channel below space.
The invention has the beneficial effects that:
1. set up cylinder wind channel and baffle wind channel in printer inside, can clear up the two sides of paper, avoid the card paper.
2. Set up a plurality of second fans in cylinder wind channel inside, can compensate the inside atmospheric pressure in cylinder wind channel, the reinforcing is to the clearance effect on paper surface.
3. The related structure is arranged at the joint of the roller air duct and the pipeline box, so that ventilation during rotation of the roller air duct can be realized.
4. Set up speed reduction face and mounting box in the clean room, can strengthen the filter effect to dust in the air, realize the change to filter screen and first fan.
Drawings
FIG. 1 is a schematic view of the internal structure of the present invention;
FIG. 2 is a schematic diagram of the principal structure of the present invention;
FIG. 3 is a schematic view of an axial joint on a side plate of the tubing cassette of the present invention;
FIG. 4 is a schematic view of a roller duct of the present invention;
FIG. 5 is a schematic view of a second fan according to the present invention;
FIG. 6 is a front view of a clean room of the present invention;
description of reference numerals:
1. a guard plate air duct;
2. a tubing cassette; 21. a second vent; 22. a second support bar; 23. a shaft coupling;
3. a paper transfer roller;
4. a roller air duct; 41. a rubber surface; 42. a second fan; 43. a first vent; 44. rotating the shaft core; 45. a first support bar;
5. mounting a box; 51. a filter screen; 52. a first fan; 53. a filter screen cover; 54. A slider;
6. a dust chamber; 61. a decelerating surface; 62. and a limiting plate.
Detailed Description
The concept and technical effects of the present invention will be clearly and completely described below in conjunction with the embodiments to fully understand the objects, features and effects of the present invention.
Example 1:
as shown in fig. 1 and 2, a double air duct printer which absorbs toner entirely includes: a printer body; the pipeline box 2 is arranged at the rear upper part of the machine body; the paper outlet roller is arranged at the front part of the pipeline box 2; the guide plate is arranged at the rear part of the pipeline box 2; pass paper roller 3, set up inside pipeline box 2, pass paper roller 3 and set up in the deflector below, still include: the paper delivery device comprises a protection plate air duct 1, wherein the protection plate air duct 1 is a cavity, the protection plate air duct 1 is arranged in front of a pipeline box 2, the protection plate air duct 1 is arranged below a paper delivery roller, and a plurality of holes are formed in the surface of the protection plate air duct 1 and communicated with the interior of the protection plate air duct 1; the paper conveying roller is characterized by comprising a roller air duct 4, the roller air duct 4 is a roller, the roller air duct 4 is arranged behind the paper conveying roller 3, the distance between the surface of the roller air duct 4 and the surface of the paper conveying roller 3 is matched with the thickness of paper, and a plurality of holes communicated with the interior are formed in the surface of the roller air duct 4; air purification device, air purification device set up in 2 right sides on pipeline box, and air purification device passes through the pipeline and communicates with 1 inside in backplate wind channel, and air purification device passes through the pipeline and communicates with 4 insides in cylinder wind channel, and the air purification device outside communicates with external environment, and air purification device is inside to be provided with first fan 52 and filter screen 51.
The roller air duct 4 is arranged behind the paper conveying roller 3, and can clean one side of the paper with the handwriting or the patterns; the guard plate air channel 1 is arranged below the paper outlet roller, so that the back of the paper can be cleaned, and the purpose of cleaning dust on two sides of the paper is achieved.
The paper conveys the exit slot via passing paper roller 3, cylinder wind channel 4, deflector, exit paper roller, backplate wind channel 1 in proper order, and under the effect in cylinder wind channel 4 and backplate wind channel 1, the dust that its two faces carried is cleared up by the air current, prevents that the dust that carries on the paper from revealing in the outside air. The roller air duct 4 is matched with the paper conveying roller 3 for conveying paper. An air channel is not arranged at the guide plate, and paper at the position of the roller air channel 4 sinks into the hole, so that the paper conveying process of the roller air channel 4 is not influenced, and the paper jam fault can be avoided.
The protection plate air duct 1 is cylindrical and is transversely arranged in front of the pipeline box 2, a plurality of holes are transversely and uniformly formed in the surface of the protection plate air duct, and the side surface of the protection plate air duct is communicated with the interior of the dust removal chamber 6 through a pipeline and used for uniformly cleaning dust on the back surface of paper.
As shown in fig. 4 and 5, the printer further includes: and the plurality of second fans 42 are arranged inside the roller air duct 4, the plurality of second fans 42 are uniformly distributed along the transverse direction, and the direction of the second fans 42 is matched with the flowing direction of the air flow.
Inside cylinder wind channel 4, the transverse distribution of atmospheric pressure size is different, can lead to keeping away from air purification device's position department atmospheric pressure not enough, can't reach the effect that needs to the clearance of paper surface dust, makes the dust that the paper surface carried reveal in the air. A plurality of second fans 42 are transversely arranged in the roller air duct 4 and used for compensating air pressure, so that the required effect of cleaning dust on the surface of the paper is achieved. The number and power of the second fans 42 may be selected according to the actual application.
The holes of the roller duct 4 are only disposed on the surface of the roller duct 4 between the second fans 42.
If the holes are formed in the inner wall of the drum air duct 4 corresponding to the second fan 42, the airflow pushed by the second fan 42 will be discharged from the holes, which wastes the power of the second fan 42. The air flow discharged from the holes can also obstruct the whole air flow, and reduce the air suction effect of the roller air duct 4. The holes are only formed in the surface of the roller air duct 4 among the second fans 42, so that the second fans 42 can push more air flows to the side under the matching of the inner wall of the roller air duct 4, the air suction effect of the roller air duct 4 is improved, the air flow is bundled, and the air flows in different directions are prevented from forming turbulent flow to influence the dust discharge.
The hole on the roller air flue 4 is in a ring shape, the ring-shaped hole divides the roller air flue 4 into a plurality of rings, the rings are fixed by a plurality of transverse connecting rods which are not higher than the surface of the roller air flue 4, a plurality of second fans 42 are arranged inside the rings, the second fans 42 are arranged inside the rings through a plurality of radial supporting rods, ventilation openings are formed between the supporting rods, and the second fans 42 are connected with the motor.
Set up the hole and be the ring shape for increase air intake area, increase the air current flow, make cylinder wind channel 4 realize stronger effect of induced drafting, make cylinder wind channel 4 stronger to the clearance effect of paper surface dust. The number of the transverse connecting rods is four, and the transverse connecting rods can be designed according to the actual situation.
Because the surface of the roller air duct 4 is provided with a plurality of holes, the contact area between the roller air duct 4 and the paper is reduced, the total friction force is reduced, and the phenomenon of sliding can occur in the conveying of the paper. The rubber surface 41 is disposed on the surface of the roller duct 4 to increase the friction between the roller duct 4 and the paper and prevent the paper from sliding. Rubber surface 41 is circular, and rubber surface 41 covers the roller surface of roller duct 4.
As shown in fig. 3, the printer further includes: the roller air duct 4 is connected with a side plate of the pipeline box 2 through a rotating structure, and a plurality of first air vents 43 are arranged on the side surface of the roller air duct 4; the side plate of the pipeline box 2 is provided with a plurality of second vents 21, the second vents 21 are arranged outside the first vents 43, the second vents 21 are matched with the first vents 43, and the second vents 21 are communicated with the air purification device through a pipeline.
In order to realize the ventilation purpose when the roller duct 4 rotates, a plurality of first ventilation holes 43 are arranged on the side surface of the roller duct 4, and a plurality of second ventilation holes 21 matched with the plurality of first ventilation holes 43 are arranged on the side plate of the pipeline box 2. When the roller duct 4 rotates, the airflow in the roller duct 4 can enter the second air vents 21 from the first air vents 43 and finally enter the air purification device.
The side surface of the roller air duct 4 is not closely attached to the side plate of the pipeline box 2. A rotating shaft core 44 is arranged at the center of the side surface of the roller air duct 4, the rotating shaft core 44 is adapted to the rotating axis of the roller air duct 4, a plurality of first support rods 45 are arranged between the rotating shaft core 44 and the edge of the side surface of the roller air duct 4, the first support rods 45 are arranged along the radial direction, two ends of each first support rod 45 are respectively connected with the rotating shaft core 44 and the edge of the side surface of the roller air duct 4, a first air vent 43 is arranged between every two adjacent first support rods 45, inclined surfaces are arranged on the edges of the first support rods 45 in the rotating direction, and the inclined surfaces are inclined inwards; the side plate of the pipeline box 2 is provided with a shaft joint 23 corresponding to the rotating shaft core 44, the shaft joint 23 is rotatably connected with the rotating shaft core 44 through a bearing, a plurality of second support rods 22 are arranged between the shaft joint 23 and the side plate of the pipeline box 2, two ends of each second support rod 22 are respectively connected with the shaft joint 23 and the side plate of the pipeline box 2, and a second vent 21 is arranged between every two adjacent second support rods 22.
When the roller duct 4 is not rotated, if the side surface of the roller duct 4 is tightly attached to the side plate of the duct box 2, when the first air vents 43 and the second air vents 21 are staggered, the first air vents 43 are blocked by the side plate of the duct box 2, the second air vents 21 are blocked by the side surface of the roller duct 4, and air cannot flow or only can flow in narrow air flows, so that the air purification device cannot effectively purify the air inside the printer. The side of the roller air duct 4 is not closely attached to the side plate of the duct box 2, so as to prevent the first air vents 43 and the second air vents 21 from being blocked, and the air purification device can continuously purify the air inside the printer. After passing through the first air vents 43, the air flows through the gap between the side of the roller duct 4 and the side plate of the duct box 2, and then enters the second air vents 21.
A plurality of first supporting rods 45 are arranged to fix the rotating shaft core 44, and a plurality of second supporting rods 22 are arranged to fix the shaft joint 23, so that the rotation of the roller air duct 4 is more stable. Set up the inclined plane on the direction of rotation border of a plurality of first bracing pieces 45, the inclined plane is inside to the side slope for when cylinder wind channel 4 is rotatory, make a plurality of first bracing pieces 45 can promote the air current, accelerate the air current flow speed. The first support bar 45 and the second support bar 22 have the same shape, and the specific number can be designed according to the actual situation. The bearing may be selected from sliding bearing, rolling bearing, etc.
As shown in fig. 6, the air cleaning apparatus further includes: the dust removal chamber 6 is a cavity, the dust removal chamber 6 is arranged on the side of the pipeline box 2, one end of the dust removal chamber 6 is communicated with the external environment, and the other end of the dust removal chamber 6 is respectively communicated with the interior of the roller air duct 4 and the interior of the guard plate air duct 1 through pipelines; the speed reduction plates are plate-shaped and arranged in the dust chamber 6, the speed reduction plates are arranged along the airflow direction, and the speed reduction plates are arranged on the inner side of the filter screen 51; the deceleration surface 61, the deceleration surface 61 is a wave surface, the deceleration surface 61 is a frosted surface, and the deceleration surface 61 is arranged on the surface of the deceleration plate; the dust collecting groove is a groove and is arranged inside the dust removing chamber 6, the dust collecting groove is arranged below the plurality of speed reducing plates, and the dust collecting groove is arranged on the inner side of the filter screen 51.
The deceleration surface 61 provided on the surface of the deceleration plate decelerates the airflow by increasing the contact area with the airflow and the self-roughness, thereby enhancing the filtering effect of the filter screen 51 on the airflow. When the dust filtered by the filter screen 51 reaches the limit, the dust collecting groove can collect the dust, and the replacement period of the filter screen 51 is prolonged. If the speed of the airflow is too fast, the filtering effect of the filtering net 51 on the dust in the airflow will be reduced. The inner wall of the dust chamber 6 is provided with a decelerating surface 61 for reducing the speed of the air flow and improving the filtering effect of the filter screen 51 on the dust in the air flow. The dust chamber 6 is a cuboid. The outermost side of the dust chamber 6 is provided with a screen cover 53 for protecting the first fan 52. In this embodiment, the speed reduction plate is combined with the inner wall of the dust chamber 6, and the design can be performed according to actual needs.
The air purification room further includes: the limiting plate 62 is plate-shaped, the limiting plate 62 is arranged inside the dust chamber 6, the limiting plate 62 is arranged outside the decelerating surface 61, the limiting plate 62 is in close fit with the dust chamber 6, and a vent is arranged in the center of the limiting plate 62; the installation box 5 is a pipeline, the installation box 5 is arranged in the dust chamber 6, the installation box 5 is arranged on the outer side of the limiting plate 62, the inner side of the installation box 5 is tightly matched with the limiting plate 62, the installation box 5 is arranged along the air flow direction, a rough surface is arranged on the inner wall of the outer side of the installation box 5, a plurality of sliding blocks 54 are arranged on the outer surface of the installation box 5, the sliding blocks 54 are bulges, the sliding blocks 54 are matched with the inner wall of the dust chamber 6, and the installation box 5 can slide in the dust chamber 6; the vent is communicated with the inside of the mounting box 5 only; the filter screen 51 is arranged inside the mounting box 5; first fan 52 sets up inside mounting box 5, first fan 52 sets up in the filter screen 51 outside, first fan 52 and air current direction cooperation, be provided with a plurality of cylindrical archs between first fan 52 and the mounting box 5, a plurality of cylindrical archs are fixed in on the 5 inner walls of mounting box, cylindrical arch sets up along the air current direction, cylindrical one end extends to the pipeline box 2 outside, a plurality of cylindrical archs and first fan 52's appearance phase-match, first fan 52 can slide in mounting box 5.
The filtering effect of the filtering net 51 is reduced with the use time, and the filtering effect of the dust is finally lost. A slidable mounting box 5 is provided in the dust chamber 6 for replacing the filter screen 51 in the mounting box 5. The outer surface of the mounting box 5 is provided with a plurality of sliding blocks 54 for reducing the friction between the mounting box 5 and the dust chamber 6. A slidable first fan 52 is provided in the mounting box 5 for facilitating repair of a failure of the first fan 52. The limiting plate 62 is arranged outside the decelerating surface 61 and used for preventing the mounting box 5 from damaging the decelerating surface 61 and preventing unfiltered air from leaking to the outside air from the gap between the sliding blocks 54 to pollute the outside air. The protrusions are arranged in a cylindrical shape, and the contact surface between the cylindrical shape and the surface is small, so that friction force is reduced. The mounting box 5 is a cuboid, and the sliding block 54 is a cylinder.
The printer further includes: the guard plate air duct 1 is transversely fixed in front of the pipeline box 2; a plurality of holes on the backplate wind channel 1 are transversely and uniformly arranged on the surface of the backplate wind channel 1, and a plurality of holes on the backplate wind channel 1 are only arranged on the upper surface and the lower surface of the backplate wind channel 1.
A plurality of holes are evenly arranged on the protective plate air duct 1 in the transverse direction, and are used for improving the cleaning effect on the surface of paper. Only set up a plurality of holes in the upper surface and the lower surface in backplate wind channel 1 for make backplate wind channel 1 can realize stronger clearance effect to paper surface and backplate wind channel 1 below space.
The working process of the invention is as follows: when the printer works, after printing is finished, paper is conveyed to the paper outlet through the paper conveying roller 3, the roller air duct 4, the guide plate, the paper outlet roller and the guard plate air duct 1 in sequence. The roller duct 4 rotates, and the rubber surface 41 on the surface thereof cooperates with the paper feed roller 3 to feed the paper. The rubber surface 41 is disposed on the surface of the roller duct 4 to increase the friction between the roller duct 4 and the paper and prevent the paper from sliding. Then, the paper is guided by the guide plate and conveyed by the paper outlet roller, and finally conveyed out of the paper outlet to enter the outside. The first fan 52 and the second fan 42 are activated to generate negative pressure at the guard plate air duct 1 and the roller air duct 4, and outside air enters the printer from the paper outlet and flows into the guard plate air duct 1 and the roller air duct 4, respectively. A plurality of second fans 42 are transversely arranged in the roller air duct 4 and used for compensating air pressure, so that the roller air duct can achieve the required effect on cleaning dust on the surface of paper. The second fan 42 pushes more air flow to the side under the cooperation of the inner wall of the roller air duct 4, and the air suction effect of the roller air duct 4 is improved. The air flowing in from the paper outlet can prevent the dust generated by the printer from leaking into the outside air. The air current that flows to cylinder wind channel 4 can clear up the paper one side of taking the writing or pattern and the inside dust of printer, later carries the dust and gets into in the cylinder wind channel 4. The air current that flows to backplate wind channel 1 can clear up the back of paper, later carries the dust to get into in backplate wind channel 1.
The airflow carrying dust in the roller duct 4 sequentially passes through the roller duct 4, the first vents 43 and the second vents 21 and enters the dust chamber 6 through the pipeline. The airflow carrying dust in the guard plate air duct 1 enters the dust removing chamber 6 through the pipeline. The air current that carries the dust slows down under the effect of setting up the speed reduction face 61 inside the clean room 6 for improve the filter effect of filter screen to the dust, later get into the mounting box 5 inside through the vent that sets up in limiting plate 62 center. The dust in the air flow is filtered by the filter screen 51 provided inside the mounting box 5 and finally discharged to the outside air. Set up limiting plate 62 in the face of slowing down 61 outside, not only can prevent that mounting box 5 from damaging face of slowing down 61, can also prevent that unfiltered air from leaking the outside air by the gap between the slider 54 in, cause the pollution to the outside air.
When filter screen 51 is changed to needs, slip mounting box 5 takes out mounting box 5 from clean room 6, changes filter screen 51, and the mat surface that sets up on the mounting box outside inner wall makes the slip more convenient. When the first fan 52 needs to be repaired, the first fan 52 is slid and the first fan 52 is taken out of the mounting box 5.
The above-mentioned embodiments are only a part of the embodiments of the present invention, and not all embodiments, and other embodiments obtained by those skilled in the art without inventive efforts based on the embodiments of the present invention belong to the protection scope of the present invention.
Claims (10)
1. A dual air path printer that absorbs toner throughout, comprising: a printer body; the pipeline box (2) is arranged at the rear upper part of the machine body; the paper outlet roller is arranged at the front part of the pipeline box (2); the guide plate is arranged at the rear part of the pipeline box (2); pass paper roll (3), set up in inside pipeline box (2), pass paper roll (3) set up in the deflector below, its characterized in that still includes:
the paper delivery device comprises a protection plate air duct (1), wherein the protection plate air duct (1) is a cavity, the protection plate air duct (1) is arranged in front of a pipeline box (2), the protection plate air duct (1) is arranged below a paper delivery roller, a plurality of holes are formed in the surface of the protection plate air duct (1), and the holes are communicated with the interior of the protection plate air duct (1);
the roller air duct (4) is a roller, the roller air duct (4) is arranged behind the paper conveying roller (3), the distance between the surface of the roller air duct (4) and the surface of the paper conveying roller (3) is matched with the thickness of paper, and a plurality of holes communicated with the inside are formed in the surface of the roller air duct (4);
air purification device, air purification device sets up in pipeline box (2) side, air purification device pass through the pipeline with the inside intercommunication in backplate wind channel (1), air purification device pass through the pipeline with the inside intercommunication in cylinder wind channel (4), the air purification device outside and external environment intercommunication, inside first fan (52) and the filter screen (51) of being provided with of air purification device.
2. The dual duct printer for absorbing toner overall of claim 1, further comprising:
the plurality of second fans (42) are arranged inside the roller air duct (4), the plurality of second fans (42) are uniformly distributed along the transverse direction, and the direction of each second fan (42) is matched with the flowing direction of the air flow.
3. The printer with double air passages for absorbing toner completely as claimed in claim 2, wherein the holes of the roller air passage (4) are only provided on the surface of the roller air passage (4) between the second fans (42).
4. The printer with the double air channels for comprehensively absorbing the toner as claimed in claim 3, wherein the holes on the roller air channel (4) are circular ring-shaped, the circular ring-shaped holes divide the roller air channel (4) into a plurality of circular rings, the circular rings are fixed by a plurality of transverse connecting rods which are not higher than the surface of the roller air channel (4), a plurality of second fans (42) are arranged inside the circular rings, the second fans (42) are arranged inside the circular rings through a plurality of radial supporting rods, a ventilation opening is arranged between the supporting rods, and the second fans (42) are connected with the motor.
5. The dual air duct printer for absorbing toner on all sides according to claim 4, wherein said drum air duct (4) further comprises:
the rubber surface (41), the rubber surface (41) set up in cylinder wind channel (4) surface, rubber surface (41) with the distance on transfer roller (3) surface suits with the thickness of paper.
6. The dual duct printer for absorbing toner overall of claim 1, further comprising:
the roller air duct (4) is connected with a side plate of the pipeline box (2) through a rotating structure, and a plurality of first air vents (43) are formed in the side surface of the roller air duct (4);
be provided with a plurality of second air vents (21) on the curb plate of pipeline box (2), a plurality of second air vents (21) set up in a plurality of first air vents (43) outsides, a plurality of second air vents (21) with a plurality of first air vents (43) cooperate, a plurality of second air vents (21) through the pipeline with air purification device intercommunication.
7. The double-air-channel printer capable of absorbing toner comprehensively is characterized in that the side face of the roller air channel (4) and the side plate of the pipeline box (2) are not arranged in a close fit manner;
a rotating shaft core (44) is arranged at the center of the side face of the roller air duct (4), the rotating shaft core (44) is adapted to the rotating axis of the roller air duct (4), a plurality of first supporting rods (45) are arranged between the rotating shaft core (44) and the side edge of the roller air duct (4), the first supporting rods (45) are arranged along the radial direction, two ends of each first supporting rod (45) are respectively connected with the rotating shaft core (44) and the side edge of the roller air duct (4), a first air vent (43) is arranged between every two adjacent first supporting rods (45), an inclined plane is arranged on the edge of each first supporting rod (45) in the rotating direction, and the inclined plane inclines towards the inner side;
be provided with on the curb plate of pipeline box (2) with the coupling (23) that swivel spindle core (44) correspond, coupling (23) with swivel spindle core (44) pass through bearing swivelling joint, coupling (23) with be provided with a plurality of second bracing pieces (22) between the curb plate of pipeline box (2), the both ends of second bracing piece (22) are connected respectively coupling (23) with the curb plate of pipeline box (2), it is adjacent set up to second vent (21) between second bracing piece (22).
8. The double air duct printer capable of absorbing toner comprehensively according to claim 1, characterized in that the air cleaning device further comprises:
the dust removal chamber (6) is a cavity, the dust removal chamber (6) is arranged on the side of the pipeline box (2), one end of the dust removal chamber (6) is communicated with the external environment, and the other end of the dust removal chamber is respectively communicated with the inside of the roller air duct (4) and the inside of the guard plate air duct (1) through a pipeline;
the speed reducing plates are plate-shaped and arranged in the dust removing chamber (6), the speed reducing plates are arranged along the airflow direction, and the speed reducing plates are arranged on the inner side of the filter screen (51);
the speed reduction surface (61) is a wave surface, the speed reduction surface (61) is a frosted surface, and the speed reduction surface (61) is arranged on the surface of the speed reduction plate;
the dust collecting groove is a groove and is arranged inside the dust removing chamber (6), the dust collecting groove is arranged below the plurality of speed reducing plates, and the dust collecting groove is arranged on the inner side of the filter screen (51).
9. The dual duct printer for absorbing toner overall of claim 8, further comprising:
the limiting plate (62) is plate-shaped, the limiting plate (62) is arranged inside the dust chamber (6), the limiting plate (62) is arranged outside the decelerating surface (61), the limiting plate (62) is in close fit with the dust chamber (6), and a vent is arranged in the center of the limiting plate (62);
the installation box (5) is a pipeline, the installation box (5) is arranged inside the dust chamber (6), the installation box (5) is arranged on the outer side of the limiting plate (62), the inner side of the installation box (5) is tightly matched with the limiting plate (62), the installation box (5) is arranged along the air flow direction, a rough surface is arranged on the inner wall of the outer side of the installation box (5), a plurality of sliding blocks (54) are arranged on the outer surface of the installation box (5), the sliding blocks (54) are protrusions, the sliding blocks (54) are matched with the inner wall of the dust chamber (6), and the installation box (5) can slide in the dust chamber (6);
the ventilation opening is only communicated with the inside of the mounting box (5);
the filter screen (51) is arranged inside the mounting box (5);
first fan (52) set up in inside mounting box (5), first fan (52) set up in filter screen (51) outside, first fan (52) and air current direction cooperation, first fan (52) with be provided with a plurality of cylindrical archs between mounting box (5), a plurality of cylindrical archs are fixed in on mounting box (5) inner wall, cylindrical arch sets up along the air current direction, cylindrical one end extends to pipeline box (2) the outside, a plurality of cylindrical archs with the appearance phase-match of first fan (52), first fan (52) can in slide in mounting box (5).
10. The dual duct printer for absorbing toner overall of claim 1, further comprising:
the guard plate air duct (1) is transversely fixed in front of the pipeline box (2);
a plurality of holes on the guard plate air channel (1) are transversely and uniformly arranged on the surface of the guard plate air channel (1), and a plurality of holes on the guard plate air channel (1) are only arranged on the upper surface and the lower surface of the guard plate air channel (1).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310558137.8A CN116627013A (en) | 2021-08-30 | 2021-08-30 | Double-air-duct printer capable of comprehensively absorbing toner |
| CN202111007194.4A CN113721442B (en) | 2021-08-30 | 2021-08-30 | Double-air-duct printer capable of comprehensively absorbing toner |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111007194.4A CN113721442B (en) | 2021-08-30 | 2021-08-30 | Double-air-duct printer capable of comprehensively absorbing toner |
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| CN202310558137.8A Division CN116627013A (en) | 2021-08-30 | 2021-08-30 | Double-air-duct printer capable of comprehensively absorbing toner |
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| CN113721442A true CN113721442A (en) | 2021-11-30 |
| CN113721442B CN113721442B (en) | 2023-11-24 |
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| CN202111007194.4A Active CN113721442B (en) | 2021-08-30 | 2021-08-30 | Double-air-duct printer capable of comprehensively absorbing toner |
| CN202310558137.8A Pending CN116627013A (en) | 2021-08-30 | 2021-08-30 | Double-air-duct printer capable of comprehensively absorbing toner |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101590960A (en) * | 2008-05-29 | 2009-12-02 | 佳能株式会社 | Sheet material stacking apparatus and image processing system |
| JP2013190651A (en) * | 2012-03-14 | 2013-09-26 | Konica Minolta Inc | Image forming apparatus |
| CN207817406U (en) * | 2018-02-13 | 2018-09-04 | 青岛国彩印刷有限公司 | A kind of novel environment friendly printing equipment |
| CN111522217A (en) * | 2019-02-05 | 2020-08-11 | 利盟国际有限公司 | Toner cartridge with positioning boss |
| CN212060882U (en) * | 2020-06-05 | 2020-12-01 | 广东巴顿智联科技有限公司 | Laser printer with automatic air extractor |
-
2021
- 2021-08-30 CN CN202111007194.4A patent/CN113721442B/en active Active
- 2021-08-30 CN CN202310558137.8A patent/CN116627013A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101590960A (en) * | 2008-05-29 | 2009-12-02 | 佳能株式会社 | Sheet material stacking apparatus and image processing system |
| JP2013190651A (en) * | 2012-03-14 | 2013-09-26 | Konica Minolta Inc | Image forming apparatus |
| CN207817406U (en) * | 2018-02-13 | 2018-09-04 | 青岛国彩印刷有限公司 | A kind of novel environment friendly printing equipment |
| CN111522217A (en) * | 2019-02-05 | 2020-08-11 | 利盟国际有限公司 | Toner cartridge with positioning boss |
| CN212060882U (en) * | 2020-06-05 | 2020-12-01 | 广东巴顿智联科技有限公司 | Laser printer with automatic air extractor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113721442B (en) | 2023-11-24 |
| CN116627013A (en) | 2023-08-22 |
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Effective date of registration: 20231101 Address after: No. 50 Changtang Road, Yantian, Fenggang Town, Dongguan City, Guangdong Province, 523000 Applicant after: Dongguan zhenxinji intelligent automatic printing equipment Co.,Ltd. Address before: 199 Xinglong Street, Jianye District, Nanjing, Jiangsu 210000 Applicant before: Liu Jie |
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