Developing box with precipitation layering prevention function

Abstract

The invention belongs to the technical field of developing boxes, and discloses a developing box with an anti-precipitation layering function, which comprises a box body, a powder scraping assembly for scraping ink powder on the inner wall of the box body is rotatably arranged in the inner cavity of the box body, a stirring assembly is rotatably arranged in the inner cavity of the box body below the powder scraping assembly, a first side cover is mounted on one side of the box body, and a second side cover is mounted on the other side of the box body. A second side cover is mounted on the other side of the box body, the toner filling hole is exposed, so that toner can be conveniently and quickly added into the box body, the toner adding efficiency is improved, meanwhile, a PET scraper for scraping the inner wall of the box body can be quickly mounted through a PET scraper supporting beam and a PET scraper limiting block on the toner scraping assembly, and the toner can be quickly added into the box body through the PET scraper supporting beam and the PET scraper limiting block. And the PET scraping plate is adopted to replace a traditional metal scraper, so that the weight of the powder scraping assembly is reduced, the production cost is reduced, meanwhile, the inner wall of the toner cartridge body can be prevented from being abraded by utilizing the PET scraping plate, and the service life of the cartridge body is prolonged.

Description

Technical Field

[0001] The invention belongs to the technical field of developing boxes, and in particular relates to a developing box with an anti-sedimentation and stratification function. Background Art

[0002] The developer cartridge is a cartridge storing developer. When the developer in the developer cartridge is exhausted, the user can replace it by himself without the help of professionals after purchasing a new developer cartridge. This simple method is favored by more and more users. In addition, the developer cartridge can be matched with the drum cartridge and can be detachably installed in the imaging device as a whole.

[0003] In the prior art, the Chinese utility model with application number: CN202221523961.7 discloses a developing box, which can be detachably installed in a drum box, and the drum box includes: a drum frame; a photosensitive drum supported on the drum frame and rotatable around a rotation axis extending in the left-right direction; a forced pushing member movably arranged at the left and right ends of the drum box; the developing box includes: a developing frame, including a first end wall and a second end wall respectively arranged at the left and right ends; a developing roller supported on the developing frame; a forced pushing member respectively arranged at the left and right ends of the developing frame, and the forced pushing member can be forced to push by the forced pushing member, so that the developing box moves between a contact position where the developing roller contacts the photosensitive drum and a separation position where the developing roller separates from the photosensitive roller; a supporting portion is arranged on the first end wall and the second end wall, and the forced pushing member is detachably connected to the supporting portion and is spaced apart from the first end wall and the second end wall;

[0004] The developer box in the prior art is usually prepared by removing the side cover and then adding toner into the box body. The process of adding toner is relatively cumbersome, which reduces the efficiency of toner adding. At the same time, the traditional developer box adopts an assembled stirring structure, the overall assembly process is cumbersome, the structure has a large weight, requires a large driving force, and is inconvenient to disassemble and clean, thereby increasing the manufacturing cost.

[0005] To this end, we propose a developer box with anti-sedimentation and stratification function to solve the problems existing in the prior art. By exposing the toner adding channel, there is no need to open the side shell to add toner, which improves the efficiency of toner replacement. At the same time, a scraper made of PET material is used to stir the toner in the developer box to prevent the toner from solidifying and effectively prevent the toner from stratifying. The overall installation is simple and convenient, which reduces its own weight and reduces the equipment cost. Summary of the invention

[0006] The object of the present invention is to provide a developing box with anti-sedimentation and stratification function, so as to solve the problem proposed in the above background technology that in the prior art, the side cover needs to be removed before adding toner into the box body, and the process of adding toner is relatively cumbersome, which reduces the efficiency of adding toner. At the same time, the traditional developing box adopts an assembled stirring structure, the overall assembly process is cumbersome, the structure has a large deadweight, requires a large driving force, and is inconvenient to disassemble and clean, thereby increasing the manufacturing cost.

[0007] To achieve the above object, the present invention adopts the following technical solutions:

[0008] A developer box with an anti-sedimentation and stratification function comprises a box body, a powder scraping assembly for scraping toner powder from the inner wall of the box body is rotatably arranged in the inner cavity of the box body, a stirring assembly is rotatably arranged in the inner cavity of the box body below the powder scraping assembly, a first side cover is installed on one side of the box body, a second side cover is installed on the other side of the box body, a driving gear group for driving the powder scraping assembly and the stirring assembly is arranged on the other side of the box body, and the driving gear group is arranged in the inner cavity of the second side cover;

[0009] A powder filling hole for feeding toner is provided on one side of the box body. The powder filling hole is arranged above the powder scraping component. A sealing plug sleeve is inserted into the powder filling hole.

[0010] Furthermore, the powder scraper assembly includes an installation frame, an end portion of one side of the installation frame is fixedly connected to a PET scraper support beam, one side of the PET scraper support beam is fixedly connected to multiple groups of PET scraper limit blocks, one side of each group of PET scraper limit blocks is provided with a PET scraper clamping block, and one side of the installation frame is provided with through holes corresponding to the multiple groups of PET scraper limit blocks.

[0011] Furthermore, the other side of the installation frame is open, and the inner cavity of the installation frame is fixedly connected with multiple groups of reinforcement plates, the multiple groups of reinforcement plates are arranged at equal intervals, and reinforcement beams are provided at the ends of the two sides adjacent to the installation frame and the PET scraper support beam.

[0012] Furthermore, a connecting shaft sleeve is provided at one end of the installation frame, a connecting shaft is fixedly connected to the other end of the installation frame, and two groups of powder sweeping rods are fixedly connected to one end of the installation frame close to the connecting shaft, and an angle between the two groups of powder sweeping rods is greater than 90°.

[0013] Furthermore, the stirring assembly includes a stirring shaft rotatably arranged in the inner cavity of the box body, and multiple groups of stirring side rods are arranged on the outside of the stirring shaft. The multiple groups of stirring side rods are staggered and alternately arranged, and the cross-section of each group of stirring side rods is cross-shaped.

[0014] Furthermore, the driving gear group includes a second transmission gear and a gear rack installed on the connecting sleeve end of the mounting frame, the shaft end of the second transmission gear is rotatably set on the other side of the box body, the second transmission gear is meshed with the gear rack, one end of the stirring shaft passes through the box body and is equipped with a stirring gear, and the stirring gear is meshed with the second transmission gear.

[0015] Furthermore, a developing hole is opened at the lower end of the box body, and scrapers are respectively arranged at both ends of the developing hole at the lower end of the box body, a developing roller shaft located in the developing hole is rotatably arranged in the inner cavity of the box body, a powder feeding roller shaft located above the developing roller shaft is rotatably arranged in the inner cavity of the box body, a box cover is installed at the upper end of the box body, and a reinforcing beam is arranged on the side of the box body adjacent to the first side cover.

[0016] Furthermore, the driving gear group also includes a powder feeding gear installed at one end of the powder feeding roller shaft and a developing gear installed at one end of the developing gear. A first transmission gear is rotatably arranged on the other side of the box body. The developing gear and the powder feeding gear are both meshed with the first transmission gear. The developing gear and the powder feeding gear are staggered. The thickness of the first transmission gear is greater than the sum of the thicknesses of the first transmission gear and the second transmission gear.

[0017] Furthermore, the driving gear set also includes a middle gear rotatably arranged on the other side of the box body, a pinion is arranged on the side of the middle gear opposite to the box body, the pinion is meshed with a large gear, and the second transmission gear is arranged on the side of the box body opposite to the large gear meshed with the pinion.

[0018] Furthermore, the developing gear, the first transmission gear, the powder feeding gear and the middle gear are all helical gears, and the small gear, the large gear, the second transmission gear, the stirring gear and the gear rack are all spur gears.

[0019] The developer box with anti-sedimentation and stratification function proposed by the present invention has the following advantages compared with the prior art:

[0020] 1. The design of the box body, the powder filling hole and the powder scraping assembly of the present invention makes it convenient and quick to add toner into the box body by exposing the powder filling hole, thereby improving the efficiency of toner adding. At the same time, the PET scraper support beam and the PET scraper limit block on the powder scraping assembly can be used to quickly install the PET scraper for scraping the inner wall of the box body. The PET scraper is used to replace the traditional metal scraper, which reduces the weight of the powder scraping assembly and reduces the production cost. At the same time, the scraper made of PET material can avoid abrasion of the inner wall of the toner box body, thereby extending the service life of the box body.

[0021] 2. The design of the driving gear set, stirring assembly, powder feeding roller shaft and developing roller shaft of the present invention forms a three-dimensional spoiler through the staggered alternating layout of the cross-section stirring side rods, which completely breaks up the toner lumps and avoids static stratification. The stirring shaft covers the entire bottom of the box body, reducing the stirring blind area. At the same time, the lightweight stirring rod reduces the driving load, saves energy and reduces the wear of the gear set. The arrangement of multiple sets of helical gears makes the meshing smoother and reduces the transmission noise and vibration. The spur gears can ensure high torque transmission and adapt to frequent starts and stops. The combination of gears of different diameters realizes multi-stage speed change, which improves the use effect of the developing box. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the front structure of the box body of the present invention;

[0023] Figure 2 It is a schematic diagram of the rear view structure of the box body of the present invention;

[0024] Figure 3 It is a schematic diagram of the internal structure of the box body of the present invention;

[0025] Figure 4 It is a schematic diagram of the structure of the driving gear set of the present invention;

[0026] Figure 5 It is a schematic diagram of the stirring structure of the present invention;

[0027] Figure 6 for Figure 5 The enlarged structural diagram at A in the middle;

[0028] Figure 7 It is a schematic structural diagram of the scraping mechanism of the present invention.

[0029] In the figure: 1. box body; 2. box cover; 3. first side cover; 4. powder filling hole; 5. second side cover; 6. driving gear set; 61. developing gear; 62. first transmission gear; 63. powder feeding gear; 64. middle gear; 65. small gear; 66. large gear; 67. second transmission gear; 68. stirring gear; 69. gear frame; 7. reinforcement beam frame; 8. powder scraping assembly; 81. mounting frame; 82. powder sweeping rod; 83. reinforcement plate; 84. PET scraper support beam; 85. PET scraper limit block; 86. PET scraper block; 87. through hole; 88. reinforcement beam; 9. sealing plug sleeve; 10. stirring assembly; 101. stirring shaft; 102. stirring side rod; 11. powder feeding roller shaft; 12. developing roller shaft. DETAILED DESCRIPTION

[0030] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. The specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0031] The present invention provides Figure 1-7 A developer box with an anti-sedimentation and stratification function shown in the figure comprises a box body 1, a powder scraping assembly 8 for scraping toner on the inner wall of the box body 1 is rotatably provided in the inner cavity of the box body 1, a stirring assembly 10 is rotatably provided in the inner cavity of the box body 1 below the powder scraping assembly 8, a first side cover 3 is installed on one side of the box body 1, a second side cover 5 is installed on the other side of the box body 1, a driving gear set 6 for driving the powder scraping assembly 8 and the stirring assembly 10 is provided on the other side of the box body 1, and the driving gear set 6 is provided in the inner cavity of the second side cover 5;

[0032] A powder filling hole 4 for feeding toner is provided on one side of the box body 1. The powder filling hole 4 is arranged above the powder scraper assembly 8. A sealing plug sleeve 9 is inserted into the powder filling hole 4. Toner is fed into the inner cavity of the developing box through the powder filling hole 4, and the hole opening is sealed by the sealing plug sleeve 9 to prevent toner leakage or moisture. The external powder filling hole 4 is designed to replenish toner without disassembling the machine, simplifying the operation process. The sealing plug sleeve 9 ensures that the toner storage environment is dry to avoid agglomeration that affects the printing quality.

[0033] The powder scraper assembly 8 includes a mounting frame 81, and a PET scraper support beam 84 is fixedly connected to the end of one side of the mounting frame 81. A plurality of groups of PET scraper limit blocks 85 are fixedly connected to one side of the PET scraper support beam 84. A PET scraper clamping block 86 is provided on one side of each group of PET scraper limit blocks 85. A through hole 87 corresponding to the plurality of groups of PET scraper limit blocks 85 is opened on one side of the mounting frame 81. The driving gear set 6 drives the powder scraper assembly 8 to rotate. The PET scraper (not shown in the figure) is tightly attached to the inner wall of the box body 1 to scrape off the residual toner. The powder sweeping rod 82 cleans the powder accumulation area in both directions. The scraper made of PET material can reduce the wear on the inner wall. The non-metal scraper reduces friction loss and extends the service life of the developer box.

[0034] The other side of the mounting frame 81 is open, and a plurality of groups of reinforcing plates 83 are fixedly connected to the inner cavity of the mounting frame 81. The plurality of groups of reinforcing plates 83 are arranged at equal intervals, and reinforcing beams 88 are arranged at the ends of the mounting frame 81 and the PET scraper support beams 84 on both sides. The arrangement of the plurality of groups of reinforcing plates 83 and reinforcing beams 88 improves the overall strength of the mounting frame 81, thereby ensuring the service life of the mounting frame 81.

[0035] A connecting sleeve is provided at one end of the mounting frame 81, and a connecting shaft is fixedly connected to the other end of the mounting frame 81. Two sets of powder sweeping rods 82 are fixedly connected to one end of the mounting frame 81 close to the connecting shaft. The included angle between the two sets of powder sweeping rods 82 is greater than 90°. A connecting sleeve (not shown in the figure) is used to facilitate connection with the gear frame 69, and the bidirectional design of the powder sweeping rod 82 can reduce cleaning dead angles.

[0036] The stirring assembly 10 includes a stirring shaft 101 rotatably arranged in the inner cavity of the box body 1, and multiple groups of stirring side rods 102 are arranged on the outer side of the stirring shaft 101. The multiple groups of stirring side rods 102 are staggered and alternately arranged, and the cross-section of each group of stirring side rods 102 is cross-shaped. The cross-shaped stirring side rods 102 of the stirring assembly 10 are staggered. The lightweight stirring rod design reduces the driving load, is energy-saving and efficient, can break up the toner while avoiding toner agglomeration, and form a three-dimensional turbulence to prevent the toner from standing and stratifying.

[0037] The driving gear group 6 includes a second transmission gear 67 and a gear rack 69 installed on the connecting sleeve end of the mounting frame 81. The shaft end of the second transmission gear 67 is rotatably set on the other side of the box body 1. The second transmission gear 67 is meshed with the gear rack 69. One end of the stirring shaft 101 passes through the box body 1 and is installed with a stirring gear 68. The stirring gear 68 is meshed with the second transmission gear 67. The rotation of the second transmission gear 67 can synchronously drive the rotation of the gear rack 69 and the stirring gear 68. The different diameters of the gear rack 69 and the stirring gear 68 make the rotation speed of the mounting frame 81 and the stirring shaft 101 different, thereby ensuring the stability of the scraping assembly 8 on the material in the box body 1, and avoiding the toner supply being too fast due to the stirring assembly 10.

[0038] A developing hole is provided at the lower end of the box body 1, and scrapers are respectively provided at both ends of the developing hole at the lower end of the box body 1. A developing roller shaft 12 located in the developing hole is rotatably provided in the inner cavity of the box body 1, and a powder feeding roller shaft 11 located above the developing roller shaft 12 is rotatably provided in the inner cavity of the box body 1. A box cover 2 is installed at the upper end of the box body 1, and a reinforcing beam frame 7 is provided on the side of the box body 1 adjacent to the first side cover 3. The stirred toner is transported to the developing roller shaft 12 by the powder feeding roller shaft 11, and is evenly adsorbed to the surface of the developing roller shaft 12 through the developing hole to complete the development. The powder feeding roller shaft 11 and the developing roller shaft 12 cooperate synchronously to ensure the stability of the toner supply, and the developing hole cooperates with the scraper to control the toner thickness to improve the printing clarity.

[0039] The driving gear group 6 also includes a powder feeding gear 63 installed at one end of the powder feeding roller shaft 11 and a developing gear 61 installed at one end of the developing gear 61. A first transmission gear 62 is rotatably arranged on the other side of the box body 1. The developing gear 61 and the powder feeding gear 63 are both meshed with the first transmission gear 62. The developing gear 61 and the powder feeding gear 63 are staggered. The thickness of the first transmission gear 62 is greater than the sum of the thicknesses of the first transmission gear 62 and the second transmission gear 67. The developing gear 61 and the powder feeding gear 63 are synchronously driven by the first transmission gear 62, so that it is convenient for the feeding roller shaft to feed the toner to the developing roller shaft 12, thereby facilitating the developing work.

[0040] The driving gear set 6 also includes a middle gear 64 rotatably arranged on the other side of the box body 1, a small gear 65 is arranged on the side of the middle gear 64 opposite to the box body 1, and the small gear 65 is meshed with a large gear 66, and a second transmission gear 67 is arranged on the side of the box body 1. A large gear 66 meshed with the small gear 65 is arranged, and the kinetic energy of the powder feeding gear 63 can be transmitted to the second transmission gear 67 by using the middle gear 64 and the small gear 65, thereby realizing the overall transmission of the driving gear set 6, realizing multi-stage speed change, and synchronously driving the scraping assembly 8, the stirring assembly 10, the powder feeding roller shaft 11 and the developing roller shaft 12.

[0041] The developing gear 61, the first transmission gear 62, the powder feeding gear 63 and the middle gear 64 are all helical gears, the small gear 65, the large gear 66, the second transmission gear 67, the stirring gear 68 and the gear rack 69 are all spur gears. The structural setting of the helical gears can reduce noise and vibration, the spur gears ensure high torque transmission, and the driving gear group 6 is designed in layers, which saves space, avoids interference and improves reliability.

[0042] When in use, first put toner into the box body 1 through the powder filling hole 4, and the sealing plug sleeve 9 seals the powder filling hole 4, which can quickly add toner and improve the efficiency of replenishing toner. At the same time, the driving gear group 6 starts to operate after obtaining power. The second transmission gear 67 drives the mounting frame 81 of the powder scraper assembly 8 to rotate on the one hand, and the PET scraper scrapes the toner on the inner wall of the box body 1, and the powder sweeping rod 82 assists in cleaning. The scraper made of PET material is installed on the mounting frame 81, which reduces the production cost and the weight of the powder scraper assembly 8, and reduces the overall power consumption. On the other hand, the stirring shaft 101 of the stirring assembly 10 is driven to rotate, and the stirring side rod 102 stirs the toner to prevent precipitation and stratification. At the same time, the powder feeding roller shaft 11 and the developing roller shaft 12 rotate under the action of the driving gear group 6, and the powder feeding roller shaft 11 sends the toner to the developing roller shaft 12, and the developing roller shaft 12 transfers the toner to the developing part to complete the developing work. In the whole process, the meshing transmission of different gears ensures the coordinated work of each component.

[0043] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A developer box with an anti-sedimentation and stratification function, comprising a box body (1), characterized in that: The inner cavity of the box body (1) is rotatably provided with a scraper assembly (8) for scraping off toner on the inner wall of the box body (1); the inner cavity of the box body (1) is located below the scraper assembly and is rotatably provided with a stirring assembly (10); a first side cover (3) is installed on one side of the box body (1); a second side cover (5) is installed on the other side of the box body (1); a driving gear set (6) for driving the scraper assembly (8) and the stirring assembly (10) is installed on the other side of the box body (1); and the driving gear set (6) is arranged in the inner cavity of the second side cover (5); A powder filling hole (4) for feeding toner is provided on one side of the box body (1); the powder filling hole (4) is arranged above the powder scraping assembly; a sealing plug sleeve (9) is inserted into the powder filling hole (4).

2. The developer cartridge with anti-sedimentation and stratification function according to claim 1, characterized in that: The powder scraping assembly (8) comprises a mounting frame (81), an end portion of one side of the mounting frame (81) being fixedly connected to a PET scraper support beam (84), one side of the PET scraper support beam (84) being fixedly connected to a plurality of groups of PET scraper limit blocks (85), one side of each group of the PET scraper limit blocks (85) being provided with a PET scraper clamping block (86), and one side of the mounting frame (81) being provided with through holes (87) corresponding to the plurality of groups of PET scraper limit blocks (85).

3. The developer cartridge with anti-sedimentation and stratification function according to claim 2, characterized in that: The other side of the installation frame (81) is open, and the inner cavity of the installation frame (81) is fixedly connected with multiple groups of reinforcement plates (83), and the multiple groups of reinforcement plates (83) are arranged at equal intervals. The ends of the two sides adjacent to the installation frame (81) and the PET scraper support beam (84) are both provided with reinforcement beams (88).

4. The developer cartridge with anti-sedimentation and stratification function according to claim 3, characterized in that: A connecting shaft sleeve is provided at one end of the installation frame (81), a connecting shaft is fixedly connected to the other end of the installation frame (81), and two groups of powder sweeping rods (82) are fixedly connected to one end of the installation frame (81) close to the connecting shaft, and an angle between the two groups of powder sweeping rods (82) is greater than 90°.

5. The developer cartridge with anti-sedimentation and stratification function according to claim 4, characterized in that: The stirring assembly (10) comprises a stirring shaft (101) rotatably arranged in the inner cavity of the box body (1); a plurality of groups of stirring side rods (102) are arranged on the outer side of the stirring shaft (101); the plurality of groups of stirring side rods (102) are arranged alternately and staggered, and the cross section of each group of stirring side rods (102) is arranged in a cross shape.

6. The developer cartridge with anti-sedimentation and stratification function according to claim 5, characterized in that: The driving gear set (6) comprises a second transmission gear (67) and a gear frame (69) mounted on the mounting frame (81) and connected to the shaft sleeve end; the shaft end of the second transmission gear (67) is rotatably arranged on the other side of the box body (1); the second transmission gear (67) and the gear frame (69) are meshed; one end of the stirring shaft (101) passes through the box body (1) and is mounted with a stirring gear (68); the stirring gear (68) and the second transmission gear (67) are meshed.

7. The developer cartridge with anti-sedimentation and stratification function according to claim 6, characterized in that: A developing hole is provided at the lower end of the box body (1), and scrapers are respectively arranged at both ends of the developing hole at the lower end of the box body (1). A developing roller shaft (12) located in the developing hole is rotatably arranged in the inner cavity of the box body (1), and a powder feeding roller shaft (11) located above the developing roller shaft (12) is rotatably arranged in the inner cavity of the box body (1). A box cover (2) is installed at the upper end of the box body (1), and a reinforcing beam frame (7) is arranged on one side of the box body (1) adjacent to the first side cover (3).

8. The developer cartridge with anti-sedimentation and stratification function according to claim 7, characterized in that: The driving gear set (6) further comprises a powder feeding gear (63) mounted on one end of the powder feeding roller shaft (11) and a developing gear (61) mounted on one end of the developing gear (61); a first transmission gear (62) is rotatably arranged on the other side of the box body (1); the developing gear (61) and the powder feeding gear (63) are both meshed with the first transmission gear (62); the developing gear (61) and the powder feeding gear (63) are staggered; and the thickness of the first transmission gear (62) is greater than the sum of the thicknesses of the first transmission gear (62) and the second transmission gear (67).

9. The developer cartridge with anti-sedimentation and stratification function according to claim 8, characterized in that: The driving gear set (6) further comprises a middle gear (64) rotatably arranged on the other side of the box body (1); a small gear (65) is arranged on the side of the middle gear (64) opposite to the box body (1); the small gear (65) is meshed with a large gear (66); and a large gear (66) meshed with the small gear (65) is arranged on the side of the second transmission gear (67) opposite to the box body (1).

10. The developer cartridge with anti-sedimentation and stratification function according to claim 9, characterized in that: The developing gear (61), the first transmission gear (62), the powder feeding gear (63) and the middle gear (64) are all helical gears, and the small gear (65), the large gear (66), the second transmission gear (67), the stirring gear (68) and the gear rack (69) are all spur gears.

Images