CN211293610U

CN211293610U - Rotary conductive contact device on photosensitive drum of printer

Info

Publication number: CN211293610U
Application number: CN201921975932.2U
Authority: CN
Inventors: 程花
Original assignee: Shaanxi Zhongxing Lantu Education Technology Co ltd
Current assignee: Shaanxi Zhongxing Lantu Education Technology Co ltd
Priority date: 2019-11-15
Filing date: 2019-11-15
Publication date: 2020-08-18
Anticipated expiration: 2029-11-15

Abstract

The utility model discloses a rotatory electrically conductive contact device on printer sensitization drum relates to the printer field, which comprises a housing, the spout has all been seted up to the both sides of casing, sliding connection has first main shaft in the inner chamber of two spouts, the both ends of first main shaft and the both sides that are located the casing all fix the cup joint and have first lantern ring, the below of first main shaft is provided with the second main shaft, the both ends of second main shaft and the both sides that are located the casing all rotate and have cup jointed the second lantern ring, be provided with the elasticity rope between first lantern ring and the second lantern ring, the equal fixedly connected with go-between in both ends of elasticity rope, wherein another go-between fixedly connected with couple. The utility model discloses utilize first main shaft and second main shaft matched with mode of setting, through the elastic restoring force of elasticity rope for the second lantern ring has the trend towards the motion of second main shaft always, makes the outer wall of the roller that charges keep the laminating state with the outer wall of sensitization drum always, prevents the outage of sensitization drum, the condition of unable work.

Description

Rotary conductive contact device on photosensitive drum of printer

Technical Field

The utility model relates to a printer field, in particular to rotatory electrically conductive contact device on printer sensitization drum.

Background

A toner cartridge, also known as a photosensitive drum, is generally composed of a base substrate made of aluminum, and a photosensitive material coated on the base substrate. In a laser printer, more than 70% of imaging components are concentrated in a toner cartridge, the quality of printing quality is actually determined by the toner cartridge to a great extent, and the toner cartridge not only determines the quality of printing quality, but also determines the amount of money required to be spent by a user in the using process.

In the use of a printer, the positions of a charging roller and a photosensitive drum are determined generally, and after the charging roller and the photosensitive drum move in the printer for a period of time, parts of the charging roller and the photosensitive drum are subjected to contact friction for a long time and then may be subjected to local deformation, so that the charging roller and the photosensitive drum which are determined in the positions are not contacted with each other, and the photosensitive drum is powered off and cannot work.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a rotatory electrically conductive contact device on printer sensitization drum to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a rotatory electrically conductive contact device on printer sensitization drum, includes the casing, the spout has all been seted up to the both sides of casing, two sliding connection has first main shaft in the inner chamber of spout, the both ends of first main shaft and the both sides that are located the casing are all fixed the cup joint and are had first lantern ring, the below of first main shaft is provided with the second main shaft, the fixed interlude in both sides of second main shaft and casing is connected, the both ends of second main shaft and the both sides that are located the casing all rotate and have cup jointed the second lantern ring, be provided with the elasticity rope between first lantern ring and the second lantern ring, the equal fixedly connected with go-between in both ends of elasticity rope, one of them go-between and first lantern ring fixed connection, wherein another connect ring fixedly connected with couple, the top fixedly connected with of second lantern ring outer wall and couple matched with solid fixed ring.

Preferably, the outer wall of the first main shaft is fixedly sleeved with a charging roller, the charging roller is located between the inner walls of the two sides of the machine shell, the outer wall of the second main shaft is fixedly sleeved with a photosensitive drum, and the photosensitive drum is located between the inner walls of the two sides of the machine shell.

Preferably, one side of sensitization drum outer wall is provided with the connecting plate, the bottom fixedly connected with scraper blade of connecting plate, the bottom of scraper blade is the arc, just the scraper blade contacts with the outer wall of sensitization drum.

Preferably, the top of connecting plate rotates to alternate and is connected with the round bar, the both ends of round bar and the both sides inner wall fixed connection of casing.

Preferably, the below of connecting plate is provided with the fixed plate, the both sides of fixed plate respectively with the both sides inner wall fixed connection of casing, the last fixed surface of fixed plate is connected with first magnetite, the lower fixed surface of connecting plate is connected with the second magnetite, just first magnetite is relative with second magnetite homopolar magnetic pole.

Preferably, a bearing box is arranged below the scraper, spring steel sheets are arranged on the front surface and the back surface of the bearing box, two sides of each spring steel sheet are fixedly connected with the inner walls of the two sides of the shell respectively, and clamping blocks are fixedly connected on the front surface and the back surface of the bearing box.

The utility model discloses a technological effect and advantage:

1. the utility model discloses utilize first main shaft and second main shaft matched with setting mode, through the elastic restoring force of elasticity rope, make the elasticity rope have the pulling force towards second lantern ring one side to first lantern ring always, make the second lantern ring have the trend towards the motion of second main shaft always, thereby through the pulling of elasticity rope, make the outer wall of charging roller keep the laminating state with the outer wall of sensitization drum always, prevent the sensitization drum outage, the condition that can't work;

2. the utility model discloses utilize connecting plate and scraper blade matched with mode of setting, blade parallel action through the scraper blade all removes remaining powdered ink on the sensitization drum to get into the circulation of next printing.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic side view of the present invention.

Fig. 3 is a schematic view of the internal side structure of the present invention.

Fig. 4 is an enlarged schematic structural view of a portion a in fig. 3 according to the present invention.

In the figure: 1. a housing; 2. a chute; 3. a first main shaft; 4. a first collar; 5. a second main shaft; 6. a second collar; 7. an elastic cord; 8. a connecting ring; 9. hooking; 10. a charging roller; 11. a photosensitive drum; 12. a connecting plate; 13. a squeegee; 14. a round bar; 15. a fixing plate; 16. a carrying case; 17. a spring steel sheet; 18. and (7) clamping blocks.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The utility model provides a as shown in fig. 1-4 rotatory electrically conductive contact device on printer sensitization drum, including casing 1, spout 2 has all been seted up to casing 1's both sides, sliding connection has first main shaft 3 in the inner chamber of two spout 2, the material of first main shaft 3 is insulating material, first main shaft 3 passes through spout 2 and casing 1 sliding connection, the fixed roller 10 that charges that has cup jointed of outer wall of first main shaft 3, and the roller 10 that charges is located between the both sides inner wall of casing 1, the outer wall of second main shaft 5 is fixed to have cup jointed sensitization drum 11, and sensitization drum 11 is located between the both sides inner wall of casing 1, through the contact of charging roller 10 and sensitization drum 11, just also make the roller 10 that charges at this moment act as the medium, conduct the electric charge of outer wall to sensitization drum 11 on, realize the printing.

The two ends of the first main shaft 3 and the two sides of the casing 1 are fixedly sleeved with first collars 4, the lower part of the first main shaft 3 is provided with a second main shaft 5, the second main shaft 5 is fixedly inserted and connected with the two sides of the casing 1, the two ends of the second main shaft 5 and the two sides of the casing 1 are rotatably sleeved with second collars 6, the second collars 6 are fixedly connected with the outer wall of the casing 1, an elastic rope 7 is arranged between the first collars 4 and the second collars 6, the elastic rope 7 is always in a stretching state, namely, always has tension on the first main shaft 3, the two ends of the elastic rope 7 are fixedly connected with connecting rings 8, one connecting ring 8 is fixedly connected with the first sleeve ring 4, the other connecting ring 8 is fixedly connected with a hook 9, the top of the outer wall of the second sleeve ring 6 is fixedly connected with a fixing ring matched with the hook 9, the hook 9 is hooked on the fixing ring, so that the relative position of one end of the elastic rope 7 and the second sleeve ring 6 is fixed conveniently.

One side of the outer wall of the photosensitive drum 11 is provided with a connecting plate 12, the bottom of the connecting plate 12 is fixedly connected with a scraper 13, the scraper 13 is composed of a metal bracket and a rubber strip of polyurethane sheet, the cutting edge of the polyurethane sheet acts on the photosensitive drum 11 in parallel, the residual toner is removed by the parallel action of the cutting edge of the scraper 13 on the photosensitive drum 11 so as to enter the next printing cycle, the bottom of the scraper 13 is arc-shaped to prevent the damage caused by directly scraping the photosensitive drum 11, the scraper 13 is contacted with the outer wall of the photosensitive drum 11, the top of the connecting plate 12 is rotatably and alternately connected with a round rod 14, the two ends of the round rod 14 are fixedly connected with the inner walls of the two sides of the casing 1, a fixing plate 15 is arranged below the connecting plate 12, the two sides of the fixing plate 15 are respectively fixedly connected with the inner walls of the two sides of the casing 1, the upper surface of the fixing plate 15 is, and the like magnetic poles of the first magnet and the second magnet are opposite, so that the scraper 13 is pushed to tend to move towards the photosensitive drum 11 through the mutual repulsive force of the first magnet and the second magnet, and the scraper 13 is prevented from being contacted with the photosensitive drum 11.

The lower part of scraper blade 13 is provided with bearing box 16, and the front and the back of bearing box 16 all are provided with spring steel sheet 17, and spring steel sheet 17 is convenient for collect the powdered ink that falls down, and the both sides of spring steel sheet 17 respectively with the both sides inner wall fixed connection of casing 1, the equal fixedly connected with fixture block 18 in front and the back of bearing box 16, fixture block 18 can take place elastic deformation when passing through spring steel sheet 17 to the installation of bearing box 16 of being convenient for is fixed.

This practical theory of operation:

when the charging device is used, the elastic rope 7 is always in a stretching state, so that the elastic rope 7 is always in an elastic deformation state, through the elastic restoring force of the elastic rope 7, due to the fixed position of the hook 9, the elastic rope 7 always has a pulling force towards one side of the second sleeve ring 6 to the first sleeve ring 4, so that the second sleeve ring 6 always has a tendency to move towards the second spindle 5, so that the outer wall of the charging roller 10 is always kept in a fit state with the outer wall of the photosensitive drum 11 through the pulling of the elastic rope 7, when the outer wall of the photosensitive drum 11 or the outer wall of the charging roller 10 is concavely deformed, the first spindle 3 can move towards the direction of the second spindle 5 under the pulling of the elastic rope 7, so that the first spindle 3 slides for a certain distance in the inner cavity of the chute 2, and the charging roller 10 can continuously move towards the direction of the photosensitive drum 11, and then the charging roller 10 moves towards the photosensitive drum 11, so that the charging roller 10 and the photosensitive drum 11 are always in contact conduction, and the condition that the photosensitive drum 11 is powered off and cannot work is prevented.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the principles of the present invention.

Claims

1. A rotary conductive contact device on a photosensitive drum of a printer comprises a shell (1), and is characterized in that: the improved structure of the motor casing is characterized in that sliding grooves (2) are formed in two sides of the machine casing (1), two first main shafts (3) are connected into an inner cavity of each sliding groove (2) in a sliding mode, first lantern rings (4) are fixedly sleeved at two ends of each first main shaft (3) and located on two sides of the machine casing (1), a second main shaft (5) is arranged below each first main shaft (3), each second main shaft (5) is fixedly inserted and connected with two sides of the machine casing (1), second lantern rings (6) are rotatably sleeved at two ends of each second main shaft (5) and located on two sides of the machine casing (1), elastic ropes (7) are arranged between the first lantern rings (4) and the second lantern rings (6), connecting rings (8) are fixedly connected to two ends of each elastic rope (7), one connecting ring (8) is fixedly connected with the first lantern ring (4), and the other connecting ring (8) is fixedly connected with a hook (9), the top of the outer wall of the second lantern ring (6) is fixedly connected with a fixing ring matched with the hook (9).

2. A rotary conductive contact device on a photoreceptor drum for a printer according to claim 1, characterized in that: the outer wall of first main shaft (3) is fixed to be cup jointed and is charged roller (10), just it is located between the both sides inner wall of casing (1) to charge roller (10), the outer wall of second main shaft (5) is fixed to be cup jointed sensitization drum (11), just sensitization drum (11) are located between the both sides inner wall of casing (1).

3. A rotary conductive contact device on a photosensitive drum of a printer according to claim 2, wherein: one side of sensitization drum (11) outer wall is provided with connecting plate (12), the bottom fixedly connected with scraper blade (13) of connecting plate (12), the bottom of scraper blade (13) is the arc, just scraper blade (13) contacts with the outer wall of sensitization drum (11).

4. A rotary conductive contact device on a photoreceptor drum for a printer according to claim 3, wherein: the top of the connecting plate (12) is rotatably inserted and connected with a round rod (14), and two ends of the round rod (14) are fixedly connected with the inner walls of two sides of the casing (1).

5. A rotary conductive contact device on a photoreceptor drum for a printer according to claim 3, wherein: the utility model discloses a cabinet, including casing (1), the below of connecting plate (12) is provided with fixed plate (15), the both sides of fixed plate (15) respectively with the both sides inner wall fixed connection of casing (1), the first magnetite of upper surface fixed connection of fixed plate (15), the lower fixed surface of connecting plate (12) is connected with the second magnetite, just first magnetite is relative with second magnetite homopolar magnetic pole.

6. A rotary conductive contact device on a photoreceptor drum for a printer according to claim 3, wherein: the scraper blade (13) is characterized in that a bearing box (16) is arranged below the scraper blade (13), spring steel sheets (17) are arranged on the front face and the back face of the bearing box (16), two sides of each spring steel sheet (17) are fixedly connected with the inner walls of the two sides of the machine shell (1), and clamping blocks (18) are fixedly connected on the front face and the back face of the bearing box (16).