Toner cartridge device convenient to drive

Abstract

The utility model discloses a selenium drum device convenient to drive, which is characterized in that an imaging drum is arranged between a front end plate and a rear end plate, a powder bin component is arranged on one side of the imaging drum, a waste powder bin component is arranged on the other side of the imaging drum, a developing roller is arranged at a powder outlet of the powder bin component, a charging roller is arranged on one side of the imaging drum, and a first transmission head is arranged at one end of the imaging drum; a first connecting cavity is formed in the first transmission head, connecting convex teeth are arranged in the first connecting cavity, a first transmission bevel gear is arranged on the outer wall, close to the end of the imaging drum, of the first transmission head, the waste powder bin assembly comprises a waste powder bin, and a waste powder recycling screw is movably arranged in the waste powder bin; the waste powder recovery screw extends out of the waste powder bin and is provided with a second transmission bevel gear, a third transmission bevel gear is arranged in the front end plate, and the third transmission bevel gear is meshed with the first transmission bevel gear and the second transmission bevel gear. The developing roller transmission device is simple in structure, capable of effectively preventing the developing roller from slipping in the transmission process, convenient to drive and capable of effectively preventing carbon powder from caking.

Description

Technical Field

[0001] The utility model relates to the technical field of selenium drums, in particular to a selenium drum device which is easy to drive. Background Art

[0002] Laser printers currently dominate the office equipment market. As demand for laser printers continues to rise, major laser printer manufacturers are constantly upgrading their products, introducing an increasing number of color laser printers to the market. Color laser printers operate in the same principle as black-and-white laser printers, achieving printing through the following steps: charging, exposure, development, transfer, fixing, and cleaning.

[0003] Laser printing equipment includes a toner cartridge, also known as a photosensitive drum. It is a printing device installed on the printer and is generally composed of a basic substrate made of aluminum and a photosensitive material coated on the substrate. The toner cartridge contains all imaging and developing components, and the main components include the OPC roller, powder bin, magnetic roller, powder blade, cleaning scraper, waste toner bin, charging roller, etc. OPC is the abbreviation of Organic Photoconductor. The OPC roller is a photoelectric conversion device formed by coating the surface of a conductive aluminum cylinder with OPC material. Its characteristics are that it is an insulator in the dark and can maintain a certain static charge. When irradiated with light of a certain wavelength, it becomes a conductor, releasing the charge through the aluminum base to form an electrostatic latent image. It is the core component of laser printing.

[0004] Components like the developing roller, powder feed roller, and agitator rod require rotation to function. The printer's internal motor provides the driving force, and these components of the toner cartridge are connected and rotated using a gear train. The toner cartridge's side caps secure the gears. The toner cartridge gears are injection-molded from POM plastic, and existing toner cartridges often have baffles at the ends of the gears. This increased number of components complicates the structure, hinders maintenance, and increases production costs. Furthermore, due to design flaws, the connection between the imaging drum and external drive components is difficult, making it prone to slippage.

[0005] In addition, due to design defects in existing toner cartridge devices, toner is easily agglomerated in the toner bin due to being squeezed during the conveying process, thereby affecting the use effect.

[0006] Therefore, the existing toner cartridge device needs to be further improved. Utility Model Content

[0007] The purpose of the utility model is to overcome the deficiencies in the prior art and to provide a toner cartridge device which has a simple structure, can effectively prevent the developing roller from slipping during the transmission process, is easy to drive, and can effectively prevent carbon powder from agglomerating.

[0008] To achieve the above-mentioned object, the present invention adopts the following scheme: a toner cartridge device with easy driving, comprising two front end plates and a rear end plate arranged at an interval, an imaging drum being arranged between the front end plate and the rear end plate, a powder hopper assembly being provided on one side of the imaging drum, a waste powder hopper assembly being provided on the other side of the imaging drum, a developing roller being provided at the powder outlet of the powder hopper assembly, and a charging roller being provided on one side of the imaging drum, characterized in that a first transmission head is provided at one end of the imaging drum, the first transmission head protruding from the front end plate, a first connecting cavity being provided in the first transmission head, a plurality of connecting protruding teeth being evenly spaced along the circumferential direction in the first connecting cavity, a first transmission bevel gear being provided on the outer wall of the first transmission head near the end of the imaging drum, the waste powder hopper assembly comprising a waste powder hopper, a waste powder recovery screw being movably provided in the waste powder hopper, the end of the waste powder recovery screw corresponding to the first transmission head protruding from the waste powder hopper and provided with a second transmission bevel gear, a third transmission bevel gear being provided in the front end plate, the third transmission bevel gear being meshed with the first transmission bevel gear and the second transmission bevel gear respectively.

[0009] As another improvement of the easy-to-drive toner drum device of the present invention, one end of the developing roller passes through the front end plate and is provided with a second transmission head, a second connecting cavity is provided in the second transmission head, a plurality of positioning grooves are provided at intervals along the circumferential direction in the second connecting cavity, a conical guide surface is provided at the opening of the second transmission head, and a fourth transmission bevel gear is provided at the end of the second transmission head near the developing roller.

[0010] As another improvement of the toner cartridge device with easy driving of the present invention, the powder bin assembly includes a first bin body and a second bin body arranged at intervals, the first bin body is close to one side of the imaging drum, one end of the first bin body and the second bin body are connected to each other, a powder feeding screw is movably arranged in the first bin body, and a powder supply screw is movably arranged in the second bin body, one end of the powder feeding screw passes through the front end plate and is provided with a fifth transmission bevel gear, a sixth transmission bevel gear is provided in the front end plate, the sixth transmission bevel gear is respectively engaged with the fourth transmission bevel gear and the fifth transmission bevel gear, a seventh transmission bevel gear is provided at the other end of the powder feeding screw, and an eighth transmission bevel gear is provided at the end corresponding to the powder supply screw and the seventh transmission bevel gear, and the seventh transmission bevel gear and the eighth transmission bevel gear are engaged with each other.

[0011] As another improvement of the conveniently driven toner cartridge device of the present invention, a plurality of convex block groups that can help to break up the carbon powder are arranged at intervals on the powder supply screw.

[0012] As another improvement of the convenient-to-drive toner cartridge device of the present invention, two adjacent projection groups are arranged perpendicular to each other.

[0013] As another improvement of the convenient-to-drive toner cartridge device of the present invention, the projection group includes two projections that are spaced apart.

[0014] As another improvement of the convenient-to-drive toner drum device of the present invention, a scraper is provided on the first housing on one side of the developing roller.

[0015] As another improvement of the convenient-to-drive toner cartridge device of the present invention, a plurality of snap-fit slots are spaced apart on the first housing, and snaps are provided at positions corresponding to the scraper and the snap-fit slots, and the snaps are snapped into the snap-fit slots.

[0016] In summary, the present invention has the following beneficial effects compared to the prior art:

[0017] 1. The utility model has a simple structure. A plurality of connecting protruding teeth are evenly spaced along the circumferential direction inside the first transmission head of the imaging drum, which cooperate with the connecting external protruding teeth of the external transmission component, thereby firmly connecting the first transmission head and the external transmission component and effectively preventing slipping.

[0018] 2. In the present invention, the transmission components of the powder feeding screw and the powder supply screw are arranged in the rear end plate, which effectively simplifies the layout inside the end, makes the layout between the transmission components more reasonable, and makes the transmission smoother.

[0019] 3. In the present invention, a plurality of projection groups are arranged at intervals on the powder feeding screw. When the powder feeding screw rotates, the projection groups can effectively break up the carbon powder in the first bin. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional schematic diagram of the present utility model.

[0021] Figure 2 It is a schematic diagram of the internal structure of the utility model.

[0022] Figure 3 for Figure 2 Enlarged schematic diagram of point A in the middle.

[0023] Figure 4 for Figure 2 Enlarged schematic diagram of point B in the middle.

[0024] Figure 5 It is a schematic diagram of the internal structure of the utility model.

[0025] Figure 6 It is a schematic diagram of the utility model.

[0026] In the figure: 1. front end plate; 2. rear end plate; 3. imaging drum; 4. powder hopper assembly; 41. first hopper body; 42. second hopper body; 43. powder feeding screw; 44. powder feeding screw; 45. fifth transmission bevel gear; 46. sixth transmission bevel gear; 47. seventh transmission bevel gear; 48. eighth transmission bevel gear; 400. waste powder hopper assembly; 401. waste powder hopper; 402. waste powder recovery screw; 403. second transmission bevel gear; 5. developing roller; 6. charging roller; 7. first transmission head; 8. first connecting cavity; 9. connecting cam; 10. first transmission bevel gear; 11. third transmission bevel gear; 12. second transmission head; 13. second connecting cavity; 14. positioning groove; 15. conical guide surface; 16. fourth transmission bevel gear; 17. projection group; 18. projection; 19. scraper; 20. connecting slot hole; 21. buckle. DETAILED DESCRIPTION

[0027] The above and other technical features and advantages of the present invention are described in more detail below with reference to the accompanying drawings.

[0028] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0029] It should be noted that, in the description of the present invention, terms such as "up", "down", "left", "right", "inside", and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. This is only for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0030] Furthermore, it should be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0031] like Figure 1-6As shown, a toner cartridge device that is easy to drive includes two front end plates 1 and rear end plates 2 that are spaced apart. An imaging drum 3 is provided between the front end plate 1 and the rear end plate 2. A powder bin assembly 4 is provided on one side of the imaging drum 3. A waste powder bin assembly 400 is provided on the other side of the imaging drum 3. A developing roller 5 is provided at the powder outlet of the powder bin assembly 4. A charging roller 6 is provided on one side of the imaging drum 3. A first transmission head 7 is provided at one end of the imaging drum 3. The first transmission head 7 extends out of the front end plate 1. A first connecting cavity 8 is provided in the first transmission head 7. A uniform discharge nozzle 2 is provided in the first connecting cavity 8 along the circumferential direction. A number of connecting protruding teeth 9 are evenly spaced, and a first transmission bevel gear 10 is provided on the outer wall of the first transmission head 7 near the end of the imaging drum 3. The waste powder bin assembly 400 includes a waste powder bin 401, and a waste powder recovery screw 402 is movably provided in the waste powder bin 401. The end of the waste powder recovery screw 402 corresponding to the first transmission head 7 extends out of the waste powder bin 401 and is provided with a second transmission bevel gear 403. A third transmission bevel gear 11 is provided in the front end plate 1, and the third transmission bevel gear 11 is respectively engaged with the first transmission bevel gear 10 and the second transmission bevel gear 403.

[0032] The utility model has a simple structure. A plurality of connecting protruding teeth are evenly spaced along the circumferential direction inside the first transmission head of the imaging drum, which cooperate with the connecting external protruding teeth of the external transmission component, so that the first transmission head is firmly connected to the external transmission component and effectively prevents slipping.

[0033] In the present invention, one end of the developing roller 5 passes through the front end plate 1 and is provided with a second transmission head 12. A second connecting cavity 13 is provided in the second transmission head 12. A plurality of positioning grooves 14 are provided in the second connecting cavity 13 at intervals along the circumferential direction. A tapered introduction surface 15 is provided at the opening of the second transmission head 12. A fourth transmission bevel gear 16 is provided at the end of the second transmission head 12 near the developing roller 5. The external driving component that interfaces with the developing roller 5 is correspondingly provided with a cylindrical insertion head, and positioning protrusions are provided on the outer wall of the cylindrical insertion head at positions corresponding to the positioning grooves 14. The mutual cooperation between the positioning protrusions and the positioning grooves 14 makes the rotation of the developing roller 5 more stable.

[0034] The powder bin assembly 4 in the present utility model includes a first bin body 41 and a second bin body 42 arranged at intervals, the first bin body 41 is close to one side of the imaging drum 3, and one end of the first bin body 41 and the second bin body 42 are connected to each other. A powder feeding screw 43 is movably arranged in the first bin body 41, and a powder supply screw 44 is movably arranged in the second bin body 42. One end of the powder feeding screw 43 passes through the front end plate 1 and is provided with a fifth transmission bevel gear 45. A sixth transmission bevel gear 46 is provided in the front end plate 1, and the sixth transmission bevel gear 46 is respectively engaged with the fourth transmission bevel gear 16 and the fifth transmission bevel gear 45. A seventh transmission bevel gear 47 is provided at the other end of the powder feeding screw 43, and an eighth transmission bevel gear 48 is provided on the end of the powder supply screw 44 corresponding to the seventh transmission bevel gear 47. The seventh transmission bevel gear 47 and the eighth transmission bevel gear 48 are engaged with each other. In the utility model, the transmission components of the powder feeding screw and the powder supplying screw are arranged in the rear end plate, which effectively simplifies the layout inside the end, makes the layout between the transmission components more reasonable, and makes the transmission smoother.

[0035] In the present invention, multiple protrusion groups 17 are spaced apart on the powder feed screw 44 to help disperse the carbon powder. Two adjacent protrusion groups 17 are arranged perpendicular to each other. Each protrusion group 17 includes two spaced-apart protrusions 18. In the present invention, the multiple protrusion groups are spaced apart on the powder feed screw. As the powder feed screw rotates, the protrusion groups effectively disperse the carbon powder in the first bin.

[0036] In the present invention, a scraper 19 is provided on a first housing 41 on one side of the developing roller 5. A plurality of engaging slots 20 are provided at intervals on the first housing 41. A snap 21 is provided at positions corresponding to the scraper 19 and the engaging slots 20. The snap 21 engages within the engaging slots 20. The engagement of the snap 21 with the engaging slots 20 facilitates installation and removal of the scraper 19.

[0037] The above shows and describes the basic principles and main features of the present invention, as well as the advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A toner drum device that is easy to drive, comprising two spaced-apart front plates (1) and rear plates (2), an imaging drum (3) being provided between the front plate (1) and the rear plate (2), a powder bin assembly (4) being provided on one side of the imaging drum (3), a waste powder bin assembly (400) being provided on the other side of the imaging drum (3), a developing roller (5) being provided at a powder outlet of the powder bin assembly (4), and a charging roller (6) being provided on one side of the imaging drum (3), characterized in that: A first transmission head (7) is provided at one end of the imaging drum (3), the first transmission head (7) extending out of the front end plate (1), a first connecting cavity (8) is provided in the first transmission head (7), a plurality of connecting convex teeth (9) are evenly spaced along the circumferential direction in the first connecting cavity (8), a first transmission bevel gear (10) is provided on the outer wall of the first transmission head (7) near the end of the imaging drum (3), the waste powder bin assembly (400) includes a waste powder bin (401), a waste powder recovery screw (402) is movably provided in the waste powder bin (401), the waste powder recovery screw (402) extends out of the waste powder bin (401) at one end corresponding to the first transmission head (7) and is provided with a second transmission bevel gear (403), a third transmission bevel gear (11) is provided in the front end plate (1), the third transmission bevel gear (11) is meshed with the first transmission bevel gear (10) and the second transmission bevel gear (403), respectively.

2. The easy-to-drive toner cartridge device according to claim 1, characterized in that: One end of the developing roller (5) passes through the front end plate (1) and is provided with a second transmission head (12), a second connecting cavity (13) is provided in the second transmission head (12), a plurality of positioning grooves (14) are provided in the second connecting cavity (13) at intervals along the circumferential direction, a conical introduction surface (15) is provided at the opening of the second transmission head (12), and a fourth transmission bevel gear (16) is provided at the end of the second transmission head (12) close to the developing roller (5).

3. The easy-to-drive toner cartridge device according to claim 2, characterized in that: The powder bin assembly (4) comprises a first bin body (41) and a second bin body (42) arranged at a distance from each other, wherein the first bin body (41) is close to one side of the imaging drum (3), and one end of the first bin body (41) and the second bin body (42) are connected to each other. A powder feeding screw (43) is movably arranged in the first bin body (41), and a powder supply screw (44) is movably arranged in the second bin body (42). One end of the powder feeding screw (43) passes through the front end plate (1) and is provided with a fifth transmission bevel gear ( 45), a sixth transmission bevel gear (46) is provided in the front end plate (1), and the sixth transmission bevel gear (46) is meshed with the fourth transmission bevel gear (16) and the fifth transmission bevel gear (45) respectively. A seventh transmission bevel gear (47) is provided at the other end of the powder feeding screw (43), and an eighth transmission bevel gear (48) is provided at the end of the powder feeding screw (44) corresponding to the seventh transmission bevel gear (47), and the seventh transmission bevel gear (47) and the eighth transmission bevel gear (48) are meshed with each other.

4. The easy-to-drive toner cartridge device according to claim 3, characterized in that: A plurality of convex block groups (17) that can help break up the carbon powder are arranged at intervals on the powder supply screw (44).

5. The easy-to-drive toner cartridge device according to claim 4, characterized in that: Two adjacent convex block groups (17) are arranged perpendicular to each other.

6. A toner cartridge device with easy driving according to claim 4 or 5, characterized in that: The block group (17) includes two spaced-apart blocks (18).

7. The easy-to-drive toner cartridge device according to claim 3, characterized in that: A scraper (19) is provided on the first bin body (41) on one side of the developing roller (5).

8. The easy-to-drive toner cartridge device according to claim 7, characterized in that: A plurality of snap-fit slots (20) are arranged at intervals on the first bin body (41), and snap buckles (21) are provided at positions corresponding to the scraper (19) and the snap-fit slots (20), and the snap buckles (21) are snapped into the snap-fit slots (20).

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