阅读说明：本技术 一种打印机感光鼓上的旋转导电接触装置 (Rotary conductive contact device on photosensitive drum of printer ) 是由 程花 于 2019-11-15 设计创作，主要内容包括：本发明公开了一种打印机感光鼓上的旋转导电接触装置,涉及打印机领域,包括机壳,机壳的两侧均开设有滑槽,两个滑槽的内腔中滑动连接有第一主轴,第一主轴的两端且位于机壳的两侧均固定套接有第一套环,第一主轴的下方设置有第二主轴,第二主轴的两端且位于机壳的两侧均转动套接有第二套环,第一套环和第二套环之间设置有弹性绳,弹性绳的两端均固定连接有连接环,其中另一个连接环固定连接有挂钩。本发明利用第一主轴和第二主轴相配合的设置方式,通过弹性绳的弹性回复力,使得第二套环一直有向着第二主轴运动的趋势,使得充电辊的外壁一直与感光鼓的外壁保持贴合状态,防止感光鼓断电,无法工作的情况。(The invention discloses a rotary conductive contact device on a photosensitive drum of a printer, which relates to the field of printers and comprises a casing, wherein two sides of the casing are respectively provided with a sliding groove, inner cavities of the two sliding grooves are connected with a first main shaft in a sliding manner, two ends of the first main shaft and two sides of the casing are respectively fixedly sleeved with a first sleeve ring, a second main shaft is arranged below the first main shaft, two ends of the second main shaft and two sides of the casing are respectively sleeved with a second sleeve ring in a rotating manner, an elastic rope is arranged between the first sleeve ring and the second sleeve ring, two ends of the elastic rope are respectively and fixedly connected with a connecting ring, and the other connecting ring is fixedly connected with a hook. According to the invention, by utilizing the arrangement mode that the first main shaft and the second main shaft are matched, the second sleeve ring always tends to move towards the second main shaft through the elastic restoring force of the elastic rope, so that the outer wall of the charging roller always keeps a fit state with the outer wall of the photosensitive drum, and the condition that the photosensitive drum is powered off and cannot work is prevented.)

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).

Technical Field

The invention relates to the field of printers, in particular to a rotary conductive contact device on a photosensitive drum of a printer.

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.

Disclosure of Invention

The present invention is directed to a rotary conductive contact device on a photosensitive drum of a printer to solve the above problems.

In order to achieve the purpose, the invention provides the 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 invention has the technical effects and advantages that:

1. according to the invention, by utilizing the arrangement mode that the first main shaft and the second main shaft are matched, the elastic rope always has a pulling force towards one side of the second sleeve ring to the first sleeve ring through the elastic restoring force of the elastic rope, so that the second sleeve ring always has a trend of moving towards the second main shaft, and the outer wall of the charging roller is always kept in a fit state with the outer wall of the photosensitive drum through the pulling of the elastic rope, so that the photosensitive drum is prevented from being powered off and cannot work;

2. the invention uses the arrangement mode of the connecting plate and the scraper which are matched, and the residual toner is removed by the parallel action of the cutting edge of the scraper on the photosensitive drum so as to enter the next printing cycle.

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 view of the structure at 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 clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The invention provides a rotary conductive contact device on a photosensitive drum of a printer as shown in figures 1-4, which comprises a casing 1, wherein sliding grooves 2 are respectively formed in two sides of the casing 1, a first main shaft 3 is connected in the inner cavities of the two sliding grooves 2 in a sliding manner, the first main shaft 3 is made of an insulating material, the first main shaft 3 is connected with the casing 1 in a sliding manner through the sliding grooves 2, a charging roller 10 is fixedly sleeved on the outer wall of the first main shaft 3, the charging roller 10 is positioned between the inner walls of the two sides of the casing 1, a photosensitive drum 11 is fixedly sleeved on the outer wall of the second main shaft 5, the photosensitive drum 11 is positioned between the inner walls of the two sides of the casing 1, and the charging roller 10 is contacted with the photosensitive drum 11 to serve as a medium so as to conduct charges on the outer wall to the photosensitive drum 11, thereby realizing.

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 may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.