CN112666812A

CN112666812A - Portable duplicator

Info

Publication number: CN112666812A
Application number: CN202011575158.3A
Authority: CN
Inventors: 不公告发明人
Original assignee: Xinyin Technology Co ltd
Current assignee: Xinyin Technology Co ltd
Priority date: 2020-12-28
Filing date: 2020-12-28
Publication date: 2021-04-16

Abstract

The invention discloses a portable duplicator which comprises a carbon powder box with a light hole, a driving wheel component arranged at one end of the carbon powder box, and a transfer printing wheel matched with the carbon powder box, wherein the carbon powder box comprises a shell with a powder storage bin and a waste powder bin, a photoelectric drum rotatably connected with the shell and arranged between the powder storage bin and the waste powder bin, a charging roller component parallel to the photoelectric drum and used for charging the photoelectric drum, and a first powder scraping plate arranged at one side of the photoelectric drum close to the waste powder bin, the carbon powder box also comprises a waste powder backflow component erected between the powder storage bin and the waste powder bin, and the waste powder backflow component comprises a first rotating shaft arranged in the waste powder bin and rotatably connected with the shell, a second rotating shaft arranged in the powder storage bin and parallel to the first rotating shaft, and a conveying belt component connected with the first rotating shaft and the second rotating shaft. Compared with the prior art, the portable copying machine provided by the invention has the advantages of more miniaturized structure, space saving and convenience in carrying and carrying.

Description

Portable duplicator

Technical Field

The invention belongs to the technical field of copiers, and particularly relates to a portable copier.

Background

In an image forming apparatus such as an electrostatic copier, a digital copier, or an all-in-one printer, a developing device for developing an electrostatic latent image formed on a photosensitive drum is provided. The developing device applies toner to the electrostatic latent image to perform development. Typically, the toner consumed for development is typically provided by a toner cartridge. The carbon powder box is arranged in a preset position in the host machine in an inserting mode, the protective cover on the discharging port of the carbon powder box is opened in a rotating mode, so that carbon powder flows out of the developing device through the discharging port and is distributed in the corresponding electrostatic latent image area of the photosensitive drum after being regulated by the carbon powder distributing plate. When the carbon powder in the carbon powder box is used up, the carbon powder box is replaced by a new carbon powder box.

Referring to fig. 1, a copier 200 of the prior art includes a toner cartridge 201 having a light hole, a driving wheel assembly 202 disposed at one end of the toner cartridge 201, and a transfer wheel 203 assembled with the toner cartridge 201. The toner cartridge 201 comprises a casing 2010 with a toner storage bin and a waste toner bin, a photoelectric drum 2020 rotatably connected with the casing 2010 and arranged between the toner storage bin and the waste toner bin, a charging roller assembly 2030 parallel to the photoelectric drum 2020 and used for charging the photoelectric drum 2020, and a toner scraping plate 2040 arranged on one side of the photoelectric drum 2020 far away from the toner storage bin, wherein in the working process of the copier, the charging roller assembly 2030 charges the photoelectric drum 2020, and the charged photoelectric drum 2020 adsorbs carbon powder and then rotates to arrange the carbon powder on the surface of paper in sequence.

However, in the copier 200 of the prior art, after the scraping plate 2040 scrapes off the excess carbon powder on the photoelectric drum 2020, the carbon powder is usually collected and stored in the waste bin directly, and the carbon powder cannot flow back to the storage bin. Therefore, the waste powder bin usually needs to occupy a larger toner cartridge space, so that the volume of the copier 200 is increased, the copier 200 is not convenient to carry while the installation difficulty is increased, and meanwhile, the waste powder in the waste powder bin is usually discarded along with the toner cartridge 201 after the toner cartridge 201 is used up, so that the environment is polluted while the resources are wasted.

Therefore, there is a need to provide a portable copier which is compact, space-saving, and portable to solve the above-mentioned problems.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide a portable copying machine which is more miniaturized in structure, saves space and is convenient to carry and carry.

In order to achieve the purpose, the invention provides the following technical scheme:

a portable duplicator comprises a toner cartridge with a light hole, a driving wheel component arranged at one end of the toner cartridge and a transfer wheel assembled with the toner cartridge, the carbon powder box comprises a shell with a powder storage bin and a waste powder bin, a photoelectric drum which is rotatably connected with the shell and is arranged between the powder storage bin and the waste powder bin, a charging roller assembly which is parallel to the photoelectric drum and is used for charging the photoelectric drum, and a first powder scraping plate which is arranged on one side of the photoelectric drum close to the waste powder bin, the carbon powder box also comprises a waste powder backflow component erected between the powder storage bin and the waste powder bin, the waste powder backflow assembly comprises a first rotating shaft, a second rotating shaft and a conveying belt assembly, wherein the first rotating shaft is arranged in the waste powder bin and is connected with the shell in a rotating mode, the second rotating shaft is arranged in the powder storage bin and is parallel to the first rotating shaft, and the conveying belt assembly is connected with the first rotating shaft and the second rotating shaft.

Preferably, the driving wheel assembly includes a curing wheel and a pressure wheel arranged in parallel with the curing wheel at an interval, a first paper passing gap is formed between the curing wheel and the pressure wheel, a second paper passing gap is formed between the photoelectric drum and the transfer wheel, and in the working process of the portable copier, paper passes through the second paper passing gap and the first paper passing gap in sequence.

Preferably, the first rotating shaft includes a shaft portion arranged in parallel to the photoconductor drum at an interval, and a driving motor coaxial with the shaft portion and configured to drive the shaft portion to rotate, and the driving motor is disposed at one end of the shaft portion.

Preferably, the first rotating shaft further comprises a first thread and a second thread formed on the outer surface of the shaft body, the first thread and the second thread have opposite rotation directions and are bounded by the middle of the shaft body, and the first thread and the second thread respectively extend towards two ends of the shaft body;

when the first rotating shaft rotates, the shaft body part drives the carbon powder to move towards the two ends along the axial direction of the shaft body part.

Preferably, the conveyer belt subassembly including set up in two first fixed parts at axis body portion both ends, set up in two second fixed parts at second pivot both ends, connect first fixed part with the conveyer belt of second fixed part and set up in store up in the powder storehouse and with powder board is scraped to casing fixed connection's second, the second scrape powder board with the conveyer belt butt.

Preferably, the first fixing part includes with the axis body portion coaxial and with axis body portion fixed connection's first revolving stage, set up in first revolving stage is close to the first fixed plate of the tip one side of axis body portion and set up in first revolving stage is kept away from the second fixed plate of the tip one side of axis body portion, first fixed plate with second fixed plate fixed connection, just first fixed plate with casing fixed connection, first fixed plate with the common centre gripping of second fixed plate first revolving stage.

Preferably, the conveyer belt includes from useless powder storehouse to store up the first conveyer belt of powder storehouse direction motion and from store up the powder storehouse to the second conveyer belt of useless powder storehouse direction motion, first conveyer belt with the relative parallel interval of second conveyer belt sets up, just first conveyer belt with form the clearance between the second conveyer belt, the second fixed plate will the clearance with useless powder storehouse cuts off.

Preferably, the second fixed part include with the second pivot is coaxial and with second pivot fixed connection's second revolving stage and set up respectively in the second revolving stage is followed two third fixed plates of second pivot axial both sides, two the third fixed plate will jointly the second revolving stage centre gripping just the third fixed plate with casing fixed connection, the both ends of conveyer belt are overlapped respectively and are located first revolving stage with the second revolving stage.

Preferably, the charging roller assembly includes a primary charging roller rotatably connected to the housing and a light pipe, the primary charging roller and the light pipe are disposed in a circumferential direction of the photoconductor drum, and the primary charging roller is disposed at a front end of the photoconductor drum in a rotation direction compared to the light pipe.

Preferably, the toner cartridge further comprises a stirring member fixedly connected with the casing and a protective cover movably connected with the casing, the protective cover is close to the photoelectric drum and is arranged at the position, corresponding to the waste toner bin, of the casing.

In summary, compared with the prior art, the portable copier provided by the invention has the advantages that the waste powder backflow component arranged between the powder storage bin and the waste powder bin is arranged, so that waste powder generated in the copying process can automatically flow back to the powder storage bin, therefore, on one hand, carbon powder resources are saved, waste recycling is realized, and pollution of waste carbon powder to the environment is avoided; on the other hand, the portable copying machine does not need to provide too much space for the waste powder bin, so that the portable copying machine can be miniaturized, the size of the portable copying machine is reduced, the production cost is saved, and the portable copying machine is convenient to carry.

Drawings

FIG. 1 is a schematic plan view of a prior art copier;

FIG. 2 is a schematic plan view of a portable copier provided in accordance with the present invention;

FIG. 3 is a schematic perspective view of a toner cartridge of the portable copier according to the present invention;

FIG. 4 is a schematic view of the toner cartridge of the portable copier shown in FIG. 3 with the housing removed;

fig. 5 is an enlarged view of a portion a of the portable copying machine shown in fig. 4.

In the figure, 100, a portable copying machine; 10. a toner cartridge; 11. a housing; 111. a first housing; 112. a second housing; 12. a photoelectric drum; 13. a charging roller assembly; 131. a primary charging roller; 132. a light pipe; 14. a first powder scraping plate; 15. a waste powder return assembly; 151. a first rotating shaft; 1511. a shaft portion; 1512. a drive motor; 1513. a first thread; 1514. a second thread; 152. a second rotating shaft; 153. a conveyor belt assembly; 1531. a first fixed part; 15312. a first fixing plate; 15313. a second fixing plate; 1532. a second fixed part; 15321. a second rotating table; 15322. a third fixing plate; 1533. a conveyor belt; 15331. a first conveyor belt; 15332. a second conveyor belt; 1534. a second powder scraping plate; 16. a stirring member; 17. a protective cover; 20. a drive wheel assembly; 21. a curing wheel; 22. a pressure wheel; 30. a transfer wheel; 101. a light hole; 102. a powder storage bin; 103. a waste powder bin; 104. a gap; 105. a first paper passing gap; 106. and a second paper passing gap.

Detailed Description

The invention is described in detail below with reference to the figures and examples. The following experimental examples and examples are intended to further illustrate but not limit the invention.

Referring to fig. 2 to 5, the present invention provides a portable copier 100, wherein the portable copier 100 includes a toner cartridge 10 having a light hole 101, a driving wheel assembly 20 disposed at one end of the toner cartridge 10, and a transfer wheel 30 assembled with the toner cartridge 10.

The toner cartridge 10 includes a housing 11 having a toner storage bin 102 and a waste toner bin 103, a photoelectric drum 12 rotatably connected to the housing 11 and disposed between the toner storage bin 102 and the waste toner bin 103, a charging roller assembly 13 parallel to the photoelectric drum 12 and configured to charge the photoelectric drum 12, a first toner scraping plate 14 disposed on a side of the photoelectric drum 12 close to the waste toner bin 103, a waste toner backflow assembly 15 disposed between the toner storage bin 102 and the waste toner bin 103, a stirring member 16 disposed in the toner storage bin 102 and fixedly connected to the housing 11, and a protective cover 17 movably connected to the housing 11.

The housing 11 includes a first housing 111 enclosing the powder storage bin 102 and a second housing 112 enclosing the waste powder bin 103. The photoconductor drum 12 is provided at one end of a connection between the first housing 111 and the second housing 112, and at the other end, the light hole 101 into which laser light is incident is provided between the first housing 111 and the second housing 112.

The photoelectric drum 12 is negatively charged under the action of the charging roller assembly 13, and after being stained with carbon powder in the process of contacting the powder storage bin 102, the photoelectric drum and the transfer wheel 30 together imprint the carbon powder on passing paper, and the carbon powder imprinted on the paper is heated by subsequent paper and then melted on the paper to realize content copying.

The charging roller assembly 13 includes a primary charging roller 131 rotatably coupled to the housing 11 and a light pipe 132. The primary charging roller 131 and the light pipe 132 are disposed in the circumferential direction of the photoconductor drum 12, and the primary charging roller 131 is disposed at the front end of the photoconductor drum 12 in the rotation direction compared to the light pipe 132.

During the operation of the portable copying machine 100, the primary charging roller 131 charges the photoconductor drum 12 so that the surface of the photoconductor drum 12 is charged with negative charges, and as the photoconductor drum 12 rotates, part of the external laser beam is irradiated on the surface of the photoconductor drum 12 through the aperture 101 so that part of the charges irradiated by the laser beam is dissipated. When the photoconductor drum 12 with negative charges rotates to the powder storage bin 102, the part not irradiated by the laser still has negative charges and repels carbon powder with the same negative charges, and the part irradiated by the laser does not have negative charges and adheres to the carbon powder, and is pressed on paper in the subsequent process to copy the content.

The first powder scraping plate 14 is used for scraping off redundant carbon powder on the photoelectric drum 12 after copying, so that the scraped carbon powder enters the waste powder bin 103.

The waste powder backflow component 15 includes a first rotating shaft 151 disposed in the waste powder bin 103 and rotatably connected to the housing 11, a second rotating shaft 152 disposed in the powder storage bin 102 and parallel to the first rotating shaft 151, and a conveying belt component 153 connected to the first rotating shaft 151 and the second rotating shaft 152.

The first shaft 151 includes a shaft body 1511 spaced apart from and parallel to the photoconductor drum 12, a driving motor 1512 coaxial with the shaft body 1511 and configured to drive the shaft body 1511 to rotate, and a first thread 1513 and a second thread 1514 formed on an outer surface of the shaft body 1511. The driving motor 1512 is disposed at one end of the shaft 1511.

The first thread 1513 and the second thread 1514 have opposite rotation directions, and are bounded by the middle of the shaft body 1511, and the first thread 1513 and the second thread 1514 extend towards two ends of the shaft body 1511 respectively.

When the first rotating shaft 151 rotates, the shaft portion 1511 drives the carbon powder to move towards two ends along the axial direction of the shaft portion 1511. That is, the toner in the waste toner bin 103 can be pushed towards both ends by the conveying belt assembly 153 while the conveying belt assembly 153 conveys the toner in the waste toner bin 103 into the toner storage bin 102 by the rotation of the first rotating shaft 151, so that the conveying belt assembly 153 can convey the toner away from the waste toner bin 103, and the accumulation of the toner in the waste toner bin 103 is avoided.

In another embodiment of the present invention, the first screw 1513 and the second screw 1514 may be blades fixedly connected to the shaft 1511, and the carbon powder may be pushed toward both ends by the blades.

The tape assembly 153 includes two first fixing portions 1531 disposed at two ends of the shaft portion 1511, two second fixing portions 1532 disposed at two ends of the second shaft 152, a tape 1533 connecting the first fixing portion 1531 and the second fixing portion 1532, and a second powder scraping plate 1534 disposed in the powder storage bin 102 and fixedly connected to the housing 11. The second powder scraping plate 1534 abuts the transport belt 1533.

Through setting up second scrape whitewashed board 1534 with the transfer belt 1533 butt utilizes second scrape whitewashed board 1534 will the carbon powder that transfer belt 1533 glues is scraped and is fallen to store up powder storehouse 102, realizes the recycling of carbon powder, when having avoided the waste of carbon powder resource, has avoided the pollution that abandonment carbon powder caused the environment.

Specifically, the first fixing portion 1531 includes a first rotating table (not shown) coaxial with the shaft portion 1511 and fixedly connected to the shaft portion 1511, a first fixing plate 15312 disposed on a side of an end portion of the first rotating table close to the shaft portion 1511, and a second fixing plate 15313 disposed on a side of the end portion of the first rotating table far from the shaft portion 1511. The first fixing plate 15312 is fixedly connected to the second fixing plate 15313, the first fixing plate 15312 is fixedly connected to the housing 11, and the first fixing plate 15312 and the second fixing plate 15313 clamp the first rotary table together.

The second fixing portion 1532 includes a second rotating stage 15321 coaxial with the second rotating shaft 152 and fixedly connected to the second rotating shaft 152, and two third fixing plates 15322 respectively disposed on two sides of the second rotating stage 15321 along the axial direction of the second rotating shaft 152. The two third fixing plates 15322 clamp the second rotating table 15321 and the third fixing plates 15322 are fixedly connected to the housing 11, and two ends of the conveying belt 1533 are respectively sleeved on the first rotating table and the second rotating table 15321. In the working process of the portable copier 100, the driving motor 1512 drives the first rotating shaft 151 to rotate, so as to drive the first rotating platform to rotate, and further drive the transporting belt 1533 sleeved on the first rotating platform to move, the transporting belt 1533 is located in the waste powder bin 103, and transports the part adhered with the carbon powder to the powder storage bin 102, and the second powder scraping plate 1534 scrapes off the carbon powder adhered to the transporting belt 1533, so as to realize the selective utilization of the carbon powder.

Preferably, the transport belt 1533 includes a first transport belt 15331 moving from the waste toner hopper 103 toward the waste toner hopper 102, and a second transport belt 15332 moving from the waste toner hopper 102 toward the waste toner hopper 103. The first conveying belt 15331 and the second conveying belt 15332 are arranged in parallel at an interval, a gap 104 is formed between the first conveying belt 15331 and the second conveying belt 15332, and the second fixing plate 15313 separates the gap 104 from the waste toner bin 103. With such an arrangement, excessive contact between the toner in the waste toner bin 103 and the transport belt 1533 is avoided, so that the toner can only stick on the outer surface of the transport belt 1533, and the reliability of the portable copier 100 is improved.

The stirring member 16 is used for stirring the carbon powder in the powder storage bin 102, so that the carbon powder is prevented from being adhered. The protective cover 17 is arranged close to the photoelectric drum 12 at the position of the shell 11 corresponding to the waste powder bin 103. Specifically, in the present embodiment, the protective cover 17 is slidably connected to the housing 11, and when the copy toner cartridge 100 is not in use, the protective cover 17 seals and stores the photoconductor drum 12 by sliding.

The driving wheel assembly 20 includes a curing wheel 21 and a pressure wheel 22 spaced apart from and parallel to the curing wheel 21. Wherein a first paper passing gap 105 is formed between the curing wheel 21 and the pressure wheel 22, and a second paper passing gap 106 is formed between the photoelectric drum 12 and the transfer wheel 30. During operation of the portable copying machine 100, sheets pass through the second sheet passing gap 106 and the first sheet passing gap 105 in this order.

Compared with the prior art, the portable duplicator provided by the invention has the advantages that the waste powder backflow component erected between the powder storage bin and the waste powder bin is arranged, so that waste powder generated in the duplicating process can automatically flow back to the powder storage bin, therefore, carbon powder resources are saved, the waste reutilization is realized, and the pollution of waste carbon powder to the environment is avoided; on the other hand, the portable copying machine does not need to provide too much space for the waste powder bin, so that the portable copying machine can be miniaturized, the size of the portable copying machine is reduced, the production cost is saved, and the portable copying machine is convenient to carry.

The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that several improvements and modifications without departing from the principle of the present invention will occur to those skilled in the art, and such improvements and modifications should also be construed as within the scope of the present invention.

Claims

1. A portable duplicator is characterized in that the duplicator comprises a toner cartridge with a light hole, a driving wheel component arranged at one end of the toner cartridge and a transfer wheel matched with the toner cartridge, the carbon powder box comprises a shell with a powder storage bin and a waste powder bin, a photoelectric drum which is rotatably connected with the shell and is arranged between the powder storage bin and the waste powder bin, a charging roller assembly which is parallel to the photoelectric drum and is used for charging the photoelectric drum, and a first powder scraping plate which is arranged on one side of the photoelectric drum close to the waste powder bin, the carbon powder box also comprises a waste powder backflow component erected between the powder storage bin and the waste powder bin, the waste powder backflow assembly comprises a first rotating shaft, a second rotating shaft and a conveying belt assembly, wherein the first rotating shaft is arranged in the waste powder bin and is connected with the shell in a rotating mode, the second rotating shaft is arranged in the powder storage bin and is parallel to the first rotating shaft, and the conveying belt assembly is connected with the first rotating shaft and the second rotating shaft.

2. The portable copier of claim 1, wherein the drive wheel assembly includes a curing wheel and a pressure wheel spaced apart from and in parallel with the curing wheel, the curing wheel and the pressure wheel defining a first sheet passing gap therebetween, the photoconductor drum and the transfer wheel defining a second sheet passing gap therebetween, and wherein sheets of paper pass through the second sheet passing gap and the first sheet passing gap in sequence during operation of the portable copier.

3. The portable copying machine according to claim 1, wherein the first shaft includes a shaft portion disposed in parallel with the photoconductor drum at a distance, and a drive motor coaxial with the shaft portion and configured to drive the shaft portion to rotate, the drive motor being disposed at one end of the shaft portion.

4. The portable copier of claim 2, wherein the first rotating shaft further comprises first and second threads formed on an outer surface of the shaft portion, the first and second threads having opposite hand and bounded by a middle portion of the shaft portion, the first and second threads extending toward respective ends of the shaft portion;

5. The portable copying machine of claim 2, wherein the belt assembly includes two first fixing portions disposed at both ends of the shaft body portion, two second fixing portions disposed at both ends of the second rotating shaft, a belt connecting the first fixing portions and the second fixing portions, and a second powder scraping plate disposed in the powder storage compartment and fixedly connected to the housing, the second powder scraping plate abutting against the belt.

6. The portable copying machine according to claim 5, wherein the first fixing portion includes a first rotating table coaxial with the shaft body portion and fixedly connected to the shaft body portion, a first fixing plate provided on a side of the first rotating table closer to an end portion of the shaft body portion, and a second fixing plate provided on a side of the first rotating table farther from the end portion of the shaft body portion, the first fixing plate being fixedly connected to the second fixing plate, and the first fixing plate being fixedly connected to the housing, the first fixing plate and the second fixing plate clamping the first rotating table together.

7. The portable copying machine according to claim 6, wherein the transport belts include a first transport belt moving from the waste toner hopper to the waste toner hopper and a second transport belt moving from the waste toner hopper to the waste toner hopper, the first transport belt and the second transport belt are disposed in parallel and spaced apart from each other, a gap is formed between the first transport belt and the second transport belt, and the second fixing plate blocks the gap from the waste toner hopper.

8. The portable copying machine of claim 6, wherein the second fixing portion includes a second rotating table coaxial with the second rotating shaft and fixedly connected to the second rotating shaft, and two third fixing plates respectively disposed at two sides of the second rotating table along the axial direction of the second rotating shaft, the two third fixing plates jointly clamp the second rotating table and fixedly connect the third fixing plates to the housing, and two ends of the transport belt are respectively sleeved on the first rotating table and the second rotating table.

9. The portable copying machine according to claim 1, wherein the charging roller assembly includes a primary charging roller and a light pipe rotatably connected to the housing, the primary charging roller and the light pipe are disposed in a circumferential direction of the photoconductor drum, and the primary charging roller is disposed at a front end in a rotational direction of the photoconductor drum than the light pipe.

10. The portable copier of claim 1, wherein said toner cartridge further comprises a stirring member disposed in said toner storage compartment and fixedly connected to said housing, and a protective cover movably connected to said housing, said protective cover being disposed adjacent to said photoconductive drum at a location of said housing corresponding to said waste toner compartment.