Gear-driven side-surface film-tearing selenium drum

Abstract

The invention provides a gear-driven side film tearing toner cartridge, which comprises a toner bin, a sealing film collection mounting sheet and a worm mounting column are vertically arranged on the end surface of the gear end of the toner bin, the sealing film collection mounting sheet is rotatably connected with a sealing film collection mechanism, the sealing film collection mechanism is integrally formed by a sealing film gear, a collection rod and a positioning head, and the worm mounting column is rotatably connected with the sealing film collection mechanism. The positioning head is rotatably matched with a positioning buckle on the edge of the end face of the gear end, a worm is rotatably arranged on the worm mounting column, a gear side cover is arranged outside the end face of the gear end, and a first spline structure on the worm is axially meshed with a second spline structure on the inner wall of a driving gear matched in the gear side cover. The sealing film gear and the worm form a gear transmission pair, the collecting rod is provided with a sealing film welding opening, the sealing film welding opening is fixedly connected with the tail end of a sealing film welded to the powder outlet end of the powder bin, and the tearing direction of the sealing film is in the side face direction of the powder bin. The invention relates to the technical field of toner cartridges.

Description

Technical Field

[0001] The present invention relates to the technical field of toner cartridges, and particularly to a side film-tearing toner cartridge driven by gears. Background Art

[0002] In the field of manufacturing laser printer toner cartridges, the film-tearing structure of the sealing film is directly related to the use reliability and production cost of the toner cartridge. At present, the original HP CF226 series toner cartridges adopt an internal toner bag design, and the toner bag is torn by rotating a stirring rod to release the toner. However, this process has extremely high requirements for the cutting accuracy and material strength of the toner bag, making it difficult for compatible manufacturers to achieve and resulting in high costs. Existing compatible toner cartridges mainly adopt two alternative solutions: one is to weld or bond the sealing film inside the powder supply port of the powder bin and rely on the stirring rod to tear the sealing film. However, since the film-tearing direction is to pull out from the front, the width of the force received during startup is large, and the required pulling force is too high, often resulting in film-tearing failure and causing fatal failures; the other is to place the sealing film outside and let the user manually tear it. However, this method has a poor user experience, and carbon powder is likely to leak during the film-tearing process, polluting the environment and endangering health. In addition, some manufacturers adopt a seal pad structure to improve the film-tearing success rate, but the manufacturing cost of the seal pad increases significantly, and the market acceptance is limited.

[0003] During the production process of the toner cartridge, the full inspection link needs to ensure that the film-tearing function is normal. However, for the traditional structure, the transmission gear needs to be disassembled and installed on the toner cartridge, and the secondary assembly is likely to cause parts collision or contamination, introducing quality hidden dangers.

[0004] Therefore, the inventor has redesigned a side film-tearing toner cartridge driven by gears to solve the above problems. Summary of the Invention

[0005] Aiming at the defects of the above-mentioned prior art, the present invention provides a side film-tearing toner cartridge driven by gears, aiming to solve the problems in the prior art that the film-tearing structure of the toner cartridge sealing film has a high failure rate due to excessive film-tearing force, high production cost, and quality hidden dangers easily caused by secondary assembly after full inspection.

[0006] To achieve the above object, the technical solution adopted by the present invention is: a side film-ripping toner cartridge driven by gears, including a powder bin. A film-sealing collection and installation piece and a worm installation column are vertically arranged on the end face of the gear end of the powder bin. A film-sealing collection mechanism is rotatably connected to the film-sealing collection and installation piece. The film-sealing collection mechanism is integrally formed by a film-sealing gear, a collection rod, and a positioning head. The positioning head is rotatably matched with a positioning buckle at the edge of the end face of the gear end. A worm is rotatably arranged on the worm installation column. A gear side cover is arranged outside the end face of the gear end. A first spline structure on the worm is axially engaged with a second spline structure on the inner wall of a driving gear fitted in the gear side cover. The film-sealing gear and the worm form a gear transmission pair. The collection rod is provided with a film-sealing welding port, and the film-sealing welding port is fixedly connected to the end of a film seal welded to the powder outlet end of the powder bin. The tearing direction of the film seal is along the side direction of the powder bin.

[0007] Based on the above, the beneficial effects of a side film-ripping toner cartridge driven by gears are as follows: It solves the problems in the prior art that the film-ripping structure of the toner cartridge seal film has a high failure rate due to excessive film-ripping force, high production cost, and potential quality hazards caused by secondary assembly after full inspection; specifically manifested as:

[0008] 1. Through the design of the gear transmission pair between the film-sealing collection mechanism and the worm, combined with the side film-ripping direction of the film seal and the conical welding structure, the present invention significantly reduces the force-bearing width during film-ripping startup, reduces the required pulling force, and effectively eliminates the fatal defect of film-ripping failure caused by insufficient pulling force in the traditional structure.

[0009] 2. The present invention adopts a film-sealing structure directly welded to the powder outlet end of the powder bin, eliminating the traditional seal strip gasket component. Reliable fixation is achieved through the film-sealing welding port, reducing the unit cost from 1.5 yuan to less than 0.1 yuan, with a cost reduction of approximately 90%.

[0010] 3. By integrating the pin connection column, the worm installation column, and the stirring rack gear installation column on the end face of the gear end of the powder bin, and at the same time, the gear side cover is provided with connection column adaptation slots corresponding to the pin connection columns one by one, and quick assembly and disassembly are achieved through the pin fixation method. After full inspection, only the gear side cover without the gear set pre-installed needs to be disassembled, and the gear side cover with the driving gear and the intermediate gear pre-assembled can be replaced to complete the assembly, completely avoiding the risk of secondary pollution caused by the traditional structure that must disassemble the powder bin and the waste powder bin.

[0011] 4. The present invention automatically collects the torn film seal through the collection rod in the film-sealing collection mechanism, completely avoiding the problem of toner leakage caused by manual film-ripping. At the same time, the transmission system composed of the intermediate gear and the powder-feeding roller gear ensures that the film-ripping process does not affect the normal powder supply function of the toner cartridge.

[0012] 5. Through the right-angle transmission of the worm and the film-sealing gear, and the precise cooperation between the positioning head and the positioning buckle, the present invention realizes a 90° turn in the film-tearing direction, providing a reusable modular solution for similar products.

[0013] Further, the welding part of the film-sealing at one end of the powder outlet of the powder bin near the gear side cover is in a conical structure.

[0014] Based on the above, the beneficial effect of the conical welding structure is that it significantly reduces the force-bearing area in the initial stage of film tearing, making the film-tearing operation smoother and more reliable.

[0015] Further, a number of pin connection columns are also provided on the end face of the gear, connection column adaptation slots corresponding to the number of pin connection columns are provided on the gear side cover, the gear side cover is fixed to the pin connection columns by pins passing through the connection column adaptation slots, and a driving gear mounting column is further provided inside the gear side cover, and the driving gear is rotationally fitted on the driving gear mounting column.

[0016] Based on the above, the beneficial effect of the cooperation structure between the pin connection columns and the connection column adaptation slots is to achieve precise positioning and quick disassembly and assembly of the gear side cover.

[0017] Further, a stirring frame gear mounting column is also provided on the end face of the gear, the stirring frame gear mounting column is located on one side of the worm mounting column, a stirring frame gear is rotationally fitted on the stirring frame gear mounting column, the driving gear includes a driving large tooth part on the side away from the powder bin and a driving small tooth part on the side close to the powder bin, and the stirring frame gear is meshed and connected to one end of the driving small tooth part close to the worm mounting column.

[0018] Based on the above, the beneficial effect of the stirring frame gear mounting column is to achieve independent positioning and installation of the stirring frame gear.

[0019] Further, an intermediate gear mounting column and a powder feeding roller positioning groove are also provided on the inner side of the gear side cover, an intermediate gear is rotationally fitted on the intermediate gear mounting column, the intermediate gear includes an intermediate small tooth part on the side away from the powder bin and an intermediate large tooth part on the side close to the powder bin, the intermediate small tooth part is meshed and connected to the driving large tooth part, a powder feeding roller structure is rotationally fitted on the powder feeding roller positioning groove, the powder feeding roller structure includes a powder feeding roller and a powder feeding roller gear integrally formed with the powder feeding roller, and the powder feeding roller gear is meshed and connected to the intermediate large tooth part.

[0020] Based on the above, the beneficial effect of the layout of the intermediate gear mounting column and the powder feeding roller positioning groove in the gear side cover is to achieve a modular layout of the transmission components and improve the assembly accuracy.

[0021] Further, the collecting rod is located between the stirring frame gear mounting column, the intermediate gear, and the powder feeding roller structure, and the space between the stirring frame gear mounting column, the intermediate gear, and the powder feeding roller structure is the film sealing collecting space.

[0022] Based on the above, the beneficial effect of the film sealing collecting space is to achieve efficient storage of the torn film sealing without affecting the normal operation of each transmission component.

[0023] Further, the toner cartridge further includes a developing chamber, a photosensitive drum is disposed in the developing chamber, a photosensitive drum gear is integrally provided at one end of the photosensitive drum close to the gear side cover, and the photosensitive drum gear is meshed with the powder feeding roller gear.

[0024] To more clearly illustrate the above features of the present invention and the objectives to be achieved, the following further describes the present invention in conjunction with the accompanying drawings and specific embodiments. Description of the Drawings

[0025] Figure 1 : is a perspective view of the present invention;

[0026] Figure 2 : is a schematic diagram of the gear end face mounting component of the present invention;

[0027] Figure 3 : is a schematic diagram of the gear end face of the present invention;

[0028] Figure 4 : is a schematic diagram of pre-installing the driving gear and the intermediate gear on the gear side cover of the present invention;

[0029] Figure 5 : is an internal schematic diagram of the gear side cover of the present invention;

[0030] Figure 6 : is a schematic diagram of the gear mating on the gear end face of the present invention;

[0031] Figure 7 : is a schematic diagram of the welding part of the film sealing at one end of the powder outlet of the powder bin close to the gear side cover of the present invention.

[0032] Description of the attached reference numerals: 1 - powder bin, 11 - end face of the gear end, 111 - positioning buckle, 112 - pin connection column, 12 - sealing film, 121 - welding part, 2 - gear side cover, 21 - connection column fitting groove, 211 - driving gear, 2111 - large driving tooth part, 2112 - small driving tooth part, 2113 - second spline structure, 22 - intermediate gear mounting column, 221 - intermediate gear, 2211 - small intermediate tooth part, 2212 - large intermediate tooth part, 23 - powder feeding roller positioning groove, 231 - powder feeding roller structure, 2311 - powder feeding roller, 2312 - powder feeding roller gear, 24 - driving gear mounting column, 3 - sealing film collection mounting piece, 31 - sealing film collection mechanism, 311 - sealing film gear, 312 - collection rod, 3121 - sealing film welding joint, 313 - positioning head, 4 - worm mounting column, 41 - worm, 411 - first spline structure, 5 - stirring frame gear mounting column, 51 - stirring frame gear, 6 - developing chamber, 61 - photosensitive drum, 611 - photosensitive drum gear. Detailed implementation mode

[0033] As Figures 1-7 shown, a side film - tearing toner cartridge driven by gears includes a powder bin 1. A sealing film collection mounting piece 3 and a worm mounting column 4 are vertically arranged on the end face 11 of the gear end of the powder bin 1. A sealing film collection mechanism 31 is rotatably connected to the sealing film collection mounting piece 3. The sealing film collection mechanism 31 is integrally formed by a sealing film gear 311, a collection rod 312 and a positioning head 313. The positioning head 313 is rotatably matched with the positioning buckle 111 at the edge of the end face 11 of the gear end. A worm 41 is rotatably arranged on the worm mounting column 4. A gear side cover 2 is arranged outside the end face 11 of the gear end. The first spline structure 411 on the worm 41 is axially engaged with the second spline structure 2113 on the inner wall of the driving gear 211 fitted in the gear side cover 2. The sealing film gear 311 and the worm 41 form a gear transmission pair. The collection rod 312 is provided with a sealing film welding joint 3121, and the sealing film welding joint 3121 is fixedly connected to the end of the sealing film 12 welded to the powder outlet end of the powder bin 1. The tearing direction of the sealing film 12 is along the side direction of the powder bin.

[0034] The welding part 121 of the sealing film 12 at one end near the gear side cover 2 at the powder outlet end of the powder bin 1 is in a conical structure.

[0035] A plurality of pin connection columns 112 are further arranged on the end face 11 of the gear end. Connection column fitting grooves 21 corresponding to the plurality of pin connection columns 112 one - to - one are arranged on the gear side cover 2. The gear side cover 2 is fixed on the pin connection columns 112 by pins passing through the connection column fitting grooves 21. A driving gear mounting column 24 is further arranged inside the gear side cover 2, and the driving gear 211 is rotatably fitted on the driving gear mounting column 24.

[0036] On the end face 11 of the gear end, there is also a stirring frame gear mounting post 5, which is located on one side of the worm mounting post 4. A stirring frame gear 51 is rotatably fitted on the stirring frame gear mounting post 5. The driving gear 211 includes a driving large tooth portion 2111 away from the powder bin 1 and a driving small tooth portion 2112 close to the powder bin 1. The stirring frame gear 51 is meshed and connected to one end of the driving small tooth portion 2112 close to the worm mounting post 4.

[0037] On the inner side of the gear side cover 2, there are also an intermediate gear mounting post 22 and a powder feeding roller positioning groove 23. An intermediate gear 221 is rotatably fitted on the intermediate gear mounting post 22. The intermediate gear 221 includes an intermediate small tooth portion 2211 away from the powder bin 1 and an intermediate large tooth portion 2212 close to the powder bin 1. The intermediate small tooth portion 2211 is meshed and connected to the driving large tooth portion 2111. A powder feeding roller structure 231 is rotatably fitted on the powder feeding roller positioning groove 23. The powder feeding roller structure 231 includes a powder feeding roller 2311 and a powder feeding roller gear 2312 integrally formed with the powder feeding roller 2311. The powder feeding roller gear 2312 is meshed and connected to the intermediate large tooth portion 2212.

[0038] The collecting rod 312 is located between the stirring frame gear mounting post 5, the intermediate gear 221 and the powder feeding roller structure 231. The space between the stirring frame gear mounting post 5, the intermediate gear 221 and the powder feeding roller structure 231 is a film sealing and collecting space.

[0039] The toner cartridge further includes a developing cartridge 6. A photosensitive drum 61 is arranged in the developing cartridge 6. A photosensitive drum gear 611 is integrally arranged at one end of the photosensitive drum 61 close to the gear side cover 2. The photosensitive drum gear 611 is meshed and connected to the powder feeding roller gear 2312.

[0040] In summary, the specific implementation manner of the present invention is as follows:

[0041] After the toner cartridge is assembled, the sealing film 12 is welded to the powder outlet end of the powder bin 1, and its end is fixed to the sealing film welding port 3121 of the collecting rod 312. The welding part 121 of the sealing film 12 at the powder outlet end is in a conical structure to reduce the force-bearing width during initial film tearing. The gear side cover 2 is fixed to the pin connection post 112 on the gear end face 11 of the powder bin 1 through a pin. The driving gear 211 is pre-installed in the gear side cover 2;

[0042] After the toner cartridge is installed in the printer, the driving mechanism of the printer first drives the photosensitive drum gear 611 to rotate. The photosensitive drum gear 611 directly drives the powder feeding roller gear 2312, causing the powder feeding roller 2311 to start running. At the same time, the powder feeding roller gear 2312 meshes with the intermediate large tooth part 2212 of the intermediate gear 221, driving the intermediate gear 221 to rotate. The intermediate small tooth part 2211 of the intermediate gear 221 meshes with the driving large tooth part 2111 of the driving gear 211, thereby driving the driving gear 211 to rotate. The driving gear 211 meshes with the first spline structure 411 of the worm 41 through the second spline structure 2113 on its inner wall, driving the worm 41 to rotate. The worm 41 and the film sealing gear 311 form a gear transmission pair, ultimately driving the entire film sealing collection mechanism 31 to rotate;

[0043] The collection rod 312 of the film sealing collection mechanism 31 rotates with the film sealing gear 311 and starts to wind the film sealing 12. Since the tearing direction of the film sealing 12 is changed to the side, and the initial welding part 121 is a conical structure, the force-bearing width at the start of film tearing is greatly reduced, and the required pulling force is significantly reduced, ensuring that the film sealing 12 is smoothly torn off from the powder outlet end. The torn film sealing 12 is wound on the collection rod 312 and stored in the film sealing collection space between the stirring frame gear mounting post 5, the intermediate gear 221, and the powder feeding roller structure 231, avoiding interfering with the operation of other components;

[0044] During the production process, no transmission gear needs to be installed during full inspection. After the inspection is completed, only the gear side cover 2 needs to be removed, and the gear side cover 2 pre-installed with the driving gear 211 is replaced and fixed with a pin to complete the assembly. This design avoids the risk of secondary pollution caused by disassembling the powder bin and waste powder bin in the traditional process, significantly improving production efficiency and product reliability;

[0045] It should be noted that in the present invention, the traditional film tearing direction of pulling out from the front is changed to the side tearing method realized by the film sealing collection mechanism 31, and through the conical welding structure at the front end of the film sealing 12, the force-bearing width at the start of film tearing is minimized, greatly reducing the pulling force required for film tearing; the power steering is realized through the gear transmission pair composed of the worm 41 and the film sealing gear 311, and the collection rod 312 completes the collection of the film sealing 12 after tearing, ensuring that it does not affect the normal operation of the toner cartridge; by arranging the pin connection post 112, the worm mounting post 4, and the stirring frame gear mounting post 5 all on the gear end face 11 of the powder bin 1, only the gear side cover 2 needs to be disassembled and assembled after full inspection to complete the installation of the transmission gear, without separating the powder bin 1 and the developing cartridge 6, significantly improving production efficiency.

[0046] The above description is only the optimal solution embodiment of the present invention and is not used to limit the present invention. Various modifications or substitutions made by those skilled in the art to the present invention without departing from the essence and protection scope of the present invention should also be within the protection scope of the present invention.

Claims

1. A side-tear film toner cartridge driven by gears, comprising a powder bin (1), characterized in that: The gear end face (11) of the powder bin (1) is vertically provided with a film collecting mounting plate (3) and a worm mounting column (4); the film collecting mounting plate (3) is rotatably connected with a film collecting mechanism (31); the film collecting mechanism (31) is integrally formed by a film sealing gear (311), a collecting rod (312) and a positioning head (313); the positioning head (313) is rotatably matched with a positioning buckle (111) on the edge of the gear end face (11); a worm (41) is rotatably provided on the worm mounting column (4); the gear end face (11) is externally provided with a film collecting mechanism (31) and a film collecting mechanism (31) is integrally formed by a film sealing gear (311), a collecting rod (312) and a positioning head (313); the positioning head (313) is rotatably matched with a positioning buckle (111) on the edge of the gear end face (11); A gear side cover (2) is provided, the first spline structure (411) on the worm (41) is axially meshed with the second spline structure (2113) on the inner wall of the driving gear (211) matched in the gear side cover (2), the film sealing gear (311) and the worm (41) form a gear transmission pair, the collecting rod (312) is provided with a film sealing welding port (3121), the film sealing welding port (3121) is fixedly connected to the end of the film sealing (12) welded to the powder outlet end of the powder bin (1), and the tearing direction of the film sealing (12) is along the side direction of the powder bin.

2. The side-tear film toner cartridge driven by gears according to claim 1, characterized in that: The sealing film (12) has a conical structure at a welding portion (121) at the powder outlet end of the powder bin (1) close to one end of the gear side cover (2).

3. The side-tear film toner cartridge driven by gears according to claim 1, characterized in that: A plurality of pin connection columns (112) are also provided on the gear end surface (11); a connection column adapting groove (21) corresponding to the plurality of pin connection columns (112) is provided on the gear side cover (2); the gear side cover (2) is fixed to the pin connection columns (112) by pins passing through the connection column adapting groove (21); a driving gear mounting column (24) is also provided in the gear side cover (2); and the driving gear (211) is rotatably engaged with the driving gear mounting column (24).

4. The side-tear film toner cartridge driven by gears according to claim 1, characterized in that: A stirring rack gear mounting column (5) is also provided on the gear end surface (11), and the stirring rack gear mounting column (5) is located on one side of the worm mounting column (4). A stirring rack gear (51) is rotatably matched on the stirring rack gear mounting column (5), and the driving gear (211) includes a driving large tooth portion (2111) on a side away from the powder bin (1) and a driving small tooth portion (2112) on a side close to the powder bin (1). The stirring rack gear (51) is meshingly connected with an end of the driving small tooth portion (2112) close to the worm mounting column (4).

5. The side-tear film toner cartridge driven by gears according to claim 4, characterized in that: An intermediate gear mounting column (22) and a powder feeding roller positioning groove (23) are also provided on the inner side of the gear side cover (2); an intermediate gear (221) is rotatably engaged with the intermediate gear mounting column (22); the intermediate gear (221) comprises an intermediate small tooth portion (2211) on a side away from the powder bin (1) and an intermediate large tooth portion (2212) on a side close to the powder bin (1); the intermediate small tooth portion (2211) is meshingly connected with the driving large tooth portion (2111); a powder feeding roller structure (231) is rotatably engaged with the powder feeding roller positioning groove (23); the powder feeding roller structure (231) comprises a powder feeding roller (2311) and a powder feeding roller gear (2312) integrally formed with the powder feeding roller (2311); the powder feeding roller gear (2312) is meshingly connected with the intermediate large tooth portion (2212).

6. The side-tear film toner cartridge driven by gears according to claim 5, characterized in that: The collecting rod (312) is located between the stirring frame gear mounting column (5), the intermediate gear (221) and the powder feeding roller structure (231), and the space between the stirring frame gear mounting column (5), the intermediate gear (221) and the powder feeding roller structure (231) is a film sealing collection space.

7. The side-tear film toner cartridge driven by gears according to claim 5, characterized in that: The toner cartridge further comprises a developing chamber (6), wherein a photosensitive drum (61) is arranged in the developing chamber (6), and a photosensitive drum gear (611) is integrally provided at one end of the photosensitive drum (61) close to the gear side cover (2), and the photosensitive drum gear (611) is meshingly connected with a powder feeding roller gear (2312).

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