Toner cartridge convenient to disassemble and assemble

Abstract

The utility model discloses a selenium drum convenient to disassemble and assemble, which relates to the technical field of selenium drums and comprises a drum frame, a powder box, a photosensitive drum and a transmission gear set, the powder box and the photosensitive drum are detachably connected onto the drum frame, and the transmission gear set is mounted on one side of the drum frame; wherein the transmission gear set drives a rotating shaft of the photosensitive drum to be connected with a first sleeve, and a first spline shaft at one end of the photosensitive drum is matched with a first spline groove in the first sleeve; the other end of the photosensitive drum is connected with a detachable connecting seat on one side of the drum frame through a first cylinder; according to the utility model, the disassembly and assembly are convenient, the disassembly and assembly steps of parts such as the photosensitive drum are simplified through the specific matching of the spline shaft and the spline groove and the design of the connecting seat, complex tools and professional skills are not needed, and a common user can easily operate; the maintenance cost is low, the risk that parts are damaged due to improper disassembly and assembly is reduced, a user can replace worn parts by himself / herself, and the maintenance cost is reduced; the guide leather sheath ensures the installation precision of components.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of selenium drum, especially a selenium drum convenient to dismount. BACKGROUND

[0002] In the use process of selenium drum, with the continuous printing task, the internal components such as photosensitive drum, charging roller gradually wear or consume, need to be disassembled and replaced, however, the traditional selenium drum structure has many inconveniences in dismounting, the connection mode of selenium drum internal components is complex, usually needs to be assisted by a variety of tools to carry out tedious operation, consumes a lot of time and energy, and moreover, in the dismounting process, due to the close connection between components, it is easy to cause component damage due to improper operation, increases the maintenance cost, therefore, research and development a kind of selenium drum convenient to dismount have important practical significance, in view of this, a kind of selenium drum convenient to dismount is provided in the paper. INNOVATION CONTENT

[0003] The main purpose of the utility model is to provide a kind of selenium drum convenient to dismount, can effectively solve the problems in the background art.

[0004] To achieve the above object, the technical scheme adopted by the utility model is as follows:

[0005] A kind of selenium drum convenient to dismount, including drum frame, powder box, photosensitive drum and transmission gear set, the powder box is detachably connected on drum frame, the transmission gear set is installed on the side of drum frame, the photosensitive drum is detachably connected on drum frame;

[0006] The transmission gear set is used to drive the shaft of photosensitive drum one end fixedly connected with first sleeve, one end of the photosensitive drum is fixedly connected with first spline shaft, first spline groove that is mutually consistent with the outer wall of first spline shaft is provided in the first sleeve;

[0007] The other end of the photosensitive drum is fixedly connected with first cylinder, the side of the drum frame is detachably connected with connecting seat, the connecting seat includes bottom plate, first bearing and first inner cylinder, the bottom plate is fixedly connected with drum frame, the first inner cylinder is rotatably connected on the side of bottom plate by first bearing, one end of the first cylinder is embeddedly installed in the first inner cylinder.

[0008] Preferably, the both sides of the bottom plate are fixedly connected with side rods, the distal end of the side rod is provided with round hole, one side of the bottom plate is fixedly connected with first outer cylinder, the outer wall of the first bearing is coaxially fixedly connected in the first outer cylinder.

[0009] Preferably, a charging roller is rotatably connected in the drum holder, the outer wall of the charging roller is in linear contact with the outer wall of the photosensitive drum, one end of the charging roller is coaxially fixedly connected with a second spline shaft, one end of the rotating shaft for driving the charging roller in the transmission gear set is fixedly connected with a second sleeve, and the second sleeve is provided with a second spline groove that is in mutual fit with the outer wall of the second spline shaft.

[0010] Preferably, one side of the bottom plate is fixedly connected with a second outer cylinder, the second outer cylinder is coaxially connected with a second bearing, the inner ring of the second bearing is embeddedly connected with a second inner cylinder, one end of the charging roller is fixedly connected with a second cylinder, and one end of the second cylinder is embeddedly installed in the second inner cylinder.

[0011] Preferably, one side of the drum holder is fixedly connected with a guide leather sheath for guiding the movement of the photosensitive drum and the charging roller, the outer ring of the guide leather sheath is fixedly connected with a support frame, and the support frame is fixedly connected with the drum holder.

[0012] Preferably, the overall outer shape of the first spline shaft is in the shape of a circular truncated cone with gradually increasing outer diameter, and the first inner cylinder is provided with a circular truncated slot with gradually increasing inner diameter.

[0013] Preferably, one side of the drum holder is detachably connected with a scraper, and one side of the scraper is in linear contact with the outer wall of the photosensitive drum.

[0014] Compared with the prior art, the drum holder has the following beneficial effects:

[0015] 1. Convenient disassembly experience

[0016] Simplified operation process: when the traditional selenium drum disassembles the photosensitive drum, the charging roller and other components, complex operation steps are often required, various tools are involved, the components are closely connected, and separation is difficult; through the ingenious design, the side rod is used to fix the connection seat by means of hand-tightening bolts, the connection seat can be easily pulled out by only unscrewing the hand-tightening bolts, and then the photosensitive drum and the charging roller are exposed at one end, which can be directly pulled out; during installation, the corresponding components only need to be aligned and embedded and fixed, without complex debugging, so that the disassembly process is greatly simplified, and ordinary users can also quickly complete the operation.

[0017] Precise installation assistance: the first spline shaft is designed in the shape of a circular truncated cone with gradually increasing outer diameter, which is matched with the first spline groove in the first sleeve and the circular truncated slot in the first inner cylinder and the first cylinder, so that the components can be automatically guided and aligned during installation, the installation difficulty is reduced, the installation time is reduced, and the installation efficiency is improved; such design is rarely seen in traditional selenium drums, and effectively solves the problem of difficult alignment of components during installation.

[0018] 2. Reduce maintenance cost

[0019] Reduce the risk of component damage: in the traditional selenium drum disassembly process, due to the complex operation, it is easy to cause component damage due to improper force or unreasonable tool use, increase the maintenance cost; The convenient disassembly structure of the utility model reduces the operation difficulty, reduces the probability of component damage caused by disassembly, prolongs the service life of each component, and reduces the overall maintenance cost.

[0020] Support independent maintenance: the convenient disassembly design enables users to replace the photosensitive drum, charging roller and other components independently, without relying on professional maintenance personnel, saving maintenance cost; At the same time, users can replace the worn parts in time according to the actual situation, avoid the whole selenium drum from being scrapped due to small faults, and further save the cost.

[0021] 3. Stable printing quality guarantee

[0022] Ensure the installation accuracy of components: the design of the guide leather sheath and the supporting frame plays an accurate guiding role when installing the photosensitive drum and the charging roller, ensures the installation position accuracy of the two, ensures that the charging roller and the photosensitive drum outer wall are in good linear contact, makes the photosensitive drum charge uniformly, and lays a foundation for high-quality imaging.

[0023] Effectively clean the photosensitive drum: the detachable scraper design facilitates regular cleaning, can timely remove the residual toner on the surface of the photosensitive drum, avoids the toner accumulation affecting the printing effect, ensures the definition and quality stability of the printed image, and improves the overall printing performance of the selenium drum. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is the overall structure schematic diagram of the utility model;

[0025] Figure 2 It is the exploded view of the utility model;

[0026] Figure 3 It is the connection structure schematic diagram of the photosensitive drum, the connecting seat and the transmission gear set in the utility model;

[0027] Figure 4 It is the structure schematic diagram of the connecting seat and the charging roller in the utility model;

[0028] Figure 5 It is the exploded view of the connecting seat in the utility model;

[0029] Figure 6 It is the structure schematic diagram of the transmission gear set in the utility model.

[0030] In the figure: 1, drum stand; 2, powder box; 3, photosensitive drum; 301, first cylinder; 302, first spline shaft; 4, scraper; 5, connecting seat; 501, bottom plate; 502, side rod; 503, round hole; 504, first outer cylinder; 505, first bearing; 506, second bearing; 507, first inner cylinder; 508, second inner cylinder; 509, circular truncated cone clamping groove; 510, second outer cylinder; 6, guide leather sheath; 601, support frame; 7, charging roller; 701, second cylinder; 702, second spline shaft; 8, transmission gear set; 801, first sleeve; 802, second sleeve; 803, first spline groove; 804, second spline groove. DETAILED DESCRIPTION

[0031] In order to make the technical means, creative features, purposes and effects of the utility model easy to understand, the utility model is further described below in combination with specific embodiments.

[0032] As shown in Figures 1-6 , a selenium drum convenient to disassemble, comprising a drum stand 1, a powder box 2, a photosensitive drum 3, a transmission gear set 8, a charging roller 7, a connecting seat 5, a scraper 4 and a guide leather sheath 6, the powder box 2 is detachably connected to the drum stand 1, which facilitates the replacement of toner, the transmission gear set 8 is installed on one side of the drum stand 1, which provides power for the photosensitive drum 3 and the charging roller 7, and the photosensitive drum 3 and the charging roller 7 are both detachably connected to the drum stand 1, which facilitates maintenance and replacement.

[0033] As shown in Figure 4 and Figure 6 , one end of the rotating shaft of the transmission gear set 8 driving the photosensitive drum 3 is fixedly connected with a first sleeve 801, one end of the photosensitive drum 3 is fixedly connected with a first spline shaft 302, the first sleeve 801 is provided with a first spline groove 803 matching the outer wall of the first spline shaft 302, and the overall shape of the first spline shaft 302 is a circular truncated cone with gradually increasing outer diameter. This design makes it easier to align the first spline shaft 302 with the inner cavity of the first spline groove 803 during installation. Only a slight rotation of the photosensitive drum 3 can make it tightly installed in the first sleeve 801.

[0034] As shown in Figure 2 and Figure 5 , the other end of the photosensitive drum 3 is fixedly connected with a first cylinder 301, and one side of the drum stand 1 is detachably connected with a connecting seat 5. The connecting seat 5 comprises a bottom plate 501, a first bearing 505 and a first inner cylinder 507. The bottom plate 501 is fixedly connected with the drum stand 1, the first inner cylinder 507 is rotatably connected to one side of the bottom plate 501 through the first bearing 505, the first inner cylinder 507 is provided with a circular truncated cone clamping groove 509 with gradually increasing inner diameter, which can be easily clamped on the first cylinder 301, and the first bearing 505 ensures smooth rotation of the photosensitive drum 3 in the first inner cylinder 507.

[0035] Reference Figure 2 and Figure 5 As shown in FIGS. 1, 2, 3, 4, 5, 6, 7, 8, 9 and 10, the first outer cylinder 504 is fixedly connected to one side of the bottom plate 501, the outer wall of the first bearing 505 is coaxially fixedly connected to the first outer cylinder 504, the side rods 502 are fixedly connected to both sides of the bottom plate 501, the end of the side rod 502 is provided with a round hole 503, the round hole 503 is provided with a hand screw bolt, the connecting seat 5 is screwed to the drum frame 1 through the round hole 503 on the side rod 502 and the hand screw bolt.

[0036] Reference Figure 4 , Figure 5 and Figure 6 As shown in FIGS. 1, 2, 3, 4, 5, 6, 7, 8, 9 and 10, the charging roller 7 is rotatably connected in the drum frame 1, the outer wall of the charging roller 7 and the outer wall of the photosensitive drum 3 are in linear contact, which ensures that the photosensitive drum 3 can be uniformly charged, one end of the charging roller 7 is coaxially fixedly connected with the second spline shaft 702, one end of the rotating shaft of the transmission gear set 8 driving the charging roller 7 is fixedly connected with the second sleeve 802, the second sleeve 802 is provided with the second spline groove 804 which is in mutual fit with the outer wall of the second spline shaft 702, the second outer cylinder 510 is fixedly connected to one side of the bottom plate 501, the second outer cylinder 510 is coaxially connected with the second bearing 506, the second inner cylinder 508 is embeddedly connected in the inner ring of the second bearing 506, one end of the charging roller 7 is fixedly connected with the second cylinder 701, one end of the second cylinder 701 is embeddedly installed in the second inner cylinder 508, which realizes stable installation and rotation of the charging roller 7.

[0037] Reference Figure 2 and Figure 3 As shown in FIGS. 1, 2, 3, 4, 5, 6, 7, 8, 9 and 10, the guiding leather sleeve 6 is fixedly connected to one side of the drum frame 1, the outer ring of the guiding leather sleeve 6 is fixedly connected with the supporting frame 601, the supporting frame 601 is fixedly connected with the drum frame 1, which is used to guide the movement of the photosensitive drum 3 and the charging roller 7, and ensure the accuracy of the installation position of the photosensitive drum 3 and the charging roller 7, the scraper 4 is detachably connected to one side of the drum frame 1, the drum frame 1 is provided with a socket, one end of the drum frame 1 is embeddedly inserted into the socket on the drum frame 1, the top end of the base frame of the scraper 4 is fixedly connected with two connecting ears, the connecting ears and the outer wall of the drum frame 1 are fixedly connected through hand screws, one side of the scraper 4 is in linear contact with the outer wall of the photosensitive drum 3, which is used to remove the residual toner on the surface of the photosensitive drum 3, and ensure the printing quality.

[0038] It should be noted that the unique first spline shaft 302, second spline shaft 702 and the first spline groove 803, second spline groove 804 matching structure, as well as the circular truncated cone design of the first spline shaft 302 and the second spline shaft 702, make the installation of the photosensitive drum 3 and the charging roller 7 more convenient and fast, without the need for complex alignment operation, the design of the connecting seat 5, through the cooperation of the circular truncated cone clamping groove 509 and the first cylinder 301, further simplifies the installation process, and when disassembling, only need to unscrew the hand screw bolt on the side rod 502, pull out the connecting seat 5, the photosensitive drum 3 and the charging roller 7 can be easily taken out, which greatly saves the disassembly time.

[0039] In the embodiment, the dismounting steps of the photosensitive drum 3 and the charging roller 7 in the selenium drum convenient to dismount are described by taking the photosensitive drum 3 as an example. First, the hand screw bolt on the side rod 502 is unscrewed, and then the whole connecting seat 5 is pulled out from the drum frame 1. At this time, the photosensitive drum 3 and one end of the charging roller 7 connected with the connecting seat 5 are exposed. Then, the photosensitive drum 3 can be directly pulled out. Since the first spline shaft 302 at one end of the photosensitive drum 3 is detachably connected with the first spline groove 803 in the first sleeve 801, and the first cylinder 301 at the other end of the photosensitive drum 3 is also detachably embeddedly connected with the first inner cylinder 507 of the connecting seat 5, the photosensitive drum 3 can be easily taken out after the connecting seat 5 is pulled out. During the taking-out process, attention should be paid to avoid scratching or colliding the surface of the photosensitive drum 3 to prevent the photosensitive layer of the photosensitive drum 3 from being damaged.

[0040] The installation steps of the photosensitive drum 3 in the selenium drum convenient to dismount are as follows. First, before the photosensitive drum 3 is installed, the surface of the photosensitive drum 3 is checked to see whether it is damaged or contaminated. If necessary, cleaning or replacement is performed. At the same time, the components such as the first spline shaft 302, the first cylinder 301, the first spline groove 803 and the first inner cylinder 507 are checked to see whether they are contaminated or damaged, so as to ensure that the installation is smoothly performed. Then, the photosensitive drum 3 is moved along the guide leather sheath 6. The guide leather sheath 6 plays a guiding role and ensures that the installation position of the photosensitive drum 3 is accurate. The first spline shaft 302 at one end of the photosensitive drum 3 is aligned with the first spline groove 803 in the first sleeve 801. Since the outer wall of the first spline shaft 302 and the inner cavity of the first spline groove 803 are matched with each other, and the first spline shaft 302 is in the shape of a circular truncated cone, the alignment process is more convenient. Then, the photosensitive drum 3 is slightly rotated, so that the first spline shaft 302 is tightly installed in the first sleeve 801. Subsequently, the first inner cylinder 507 of the connecting seat 5 is aligned with the first cylinder 301 at the other end of the photosensitive drum 3. The circular truncated cone-shaped clamping groove 509 in the first inner cylinder 507 is matched with the first cylinder 301, so that the connecting seat 5 can be easily clamped on the first cylinder 301. After the connecting seat 5 is installed in place, the hand screw bolt on the side rod 502 is used to fix the connecting seat 5 on the drum frame 1, so as to ensure that the connecting seat 5 is firmly connected with the drum frame 1 and the first bearing 505 around the outer ring of the first inner cylinder 507 can normally work without affecting the rotation of the photosensitive drum 3.

[0041] The basic principle and main features of the present application and the advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above examples. The above examples and descriptions in the specification are only to illustrate the principle of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application. These changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A toner cartridge that is easy to assemble and disassemble, comprising a drum frame (1), a toner cartridge (2), a photosensitive drum (3), and a transmission gear set (8), wherein the toner cartridge (2) is detachably connected to the drum frame (1), and the transmission gear set (8) is mounted on one side of the drum frame (1), characterized in that: The photosensitive drum (3) is detachably connected to the drum frame (1); One end of the rotating shaft of the transmission gear set (8) for driving the photosensitive drum (3) is fixedly connected with a first sleeve (801), one end of the photosensitive drum (3) is fixedly connected with a first spline shaft (302), and the first sleeve (801) is provided with a first spline groove (803) matching the outer wall of the first spline shaft (302). The other end of the photosensitive drum (3) is fixedly connected with a first cylinder (301), one side of the drum frame (1) is detachably connected with a connecting seat (5), the connecting seat (5) comprises a bottom plate (501), a first bearing (505) and a first inner cylinder (507), the bottom plate (501) is fixedly connected with the drum frame (1), the first inner cylinder (507) is rotatably connected to one side of the bottom plate (501) through the first bearing (505), and one end of the first cylinder (301) is embeddedly installed in the first inner cylinder (507).

2. The toner cartridge of claim 1, wherein: Both sides of the bottom plate (501) are fixedly connected with side rods (502), the distal end of the side rod (502) is provided with a circular hole (503), one side of the bottom plate (501) is fixedly connected with a first outer cylinder (504), and the outer wall of the first bearing (505) is fixedly connected coaxially in the first outer cylinder (504).

3. The toner cartridge of claim 1, wherein: The drum frame (1) is rotatably connected with a charging roller (7), the outer wall of the charging roller (7) is in linear contact with the outer wall of the photosensitive drum (3), one end of the charging roller (7) is fixedly connected coaxially with a second spline shaft (702), one end of the rotating shaft of the transmission gear set (8) for driving the charging roller (7) is fixedly connected with a second sleeve (802), and the second sleeve (802) is provided with a second spline groove (804) matching the outer wall of the second spline shaft (702).

4. The toner cartridge of claim 3, wherein: One side of the bottom plate (501) is fixedly connected with a second outer cylinder (510), the second outer cylinder (510) is connected coaxially with a second bearing (506), the second bearing (506) is embeddedly connected with a second inner cylinder (508) in the inner ring, one end of the charging roller (7) is fixedly connected with a second cylinder (701), and one end of the second cylinder (701) is embeddedly installed in the second inner cylinder (508).

5. The toner cartridge of claim 3, wherein: One side of the drum frame (1) is fixedly connected with a guide leather sheath (6) for guiding the movement of the photosensitive drum (3) and the charging roller (7), the outer ring of the guide leather sheath (6) is fixedly connected with a supporting frame (601), and the supporting frame (601) is fixedly connected with the drum frame (1).

6. The toner cartridge of claim 1, wherein: The overall shape of the first spline shaft (302) is a circular truncated cone with gradually increasing outer diameter, and the first inner cylinder (507) is provided with a circular truncated cone-shaped clamping groove (509) with gradually increasing inner diameter.

7. The toner cartridge of claim 1, wherein: One side of the drum frame (1) is detachably connected with a scraper (4), and one side of the scraper (4) is in linear contact with the outer wall of the photosensitive drum (3).

Images