Waste powder recycling device for printer toner cartridge

Abstract

The invention relates to the field of printer accessories, in particular to a waste powder recycling device for a printer toner cartridge. Comprising a main cover plate, an auxiliary cover plate, hollow pipes, partition plates, pressing plates, baffles and a power mechanism. The auxiliary cover plate is hinged to the side, close to the roller core, of the waste bin. The partition plate is located below the hollow pipe, one end of the pressing plate is hinged to the inner wall of the waste bin, and the baffle is slidably connected with the waste bin. The power mechanisms are arranged at the two ends of the hollow pipe, the first output ends are connected with the belt wheel deflection mechanisms to drive the main cover plate, the auxiliary cover plate and the pressing plate to deflect, the second output ends are connected with the belt wheel lifting mechanisms to drive the baffles to vertically move, and the third output ends are connected with the knocking mechanisms to knock the partition plates. During use, the hollow pipe is in butt joint with a dust collector, the power mechanism drives the hollow pipe to rotate, and then waste powder is recycled. The device is integrated in the selenium drum, damage of an external device to the selenium drum is avoided, the waste powder recovery efficiency is improved, and the cost is reduced.

Description

Technical Field

[0001] This invention relates to the field of printer accessories, specifically to a waste toner recycling and processing device for printer drums. Background Technology

[0002] Laser printers, with their advantages of fast printing speed and clear text, have been widely used in many fields such as office and production. As the core consumable of laser printers, the performance of the toner cartridge directly determines the print quality. During the use of the toner cartridge, residual toner on the roller surface is scraped off by a doctor blade and collected in the waste bin, forming waste toner. Directly discarding this waste toner not only wastes resources but also poses a threat to the environment and human health due to the fine and easily dispersed toner particles. Therefore, waste toner recycling is a crucial aspect of toner cartridge usage.

[0003] Currently, most mainstream toner cartridge waste toner recycling and processing devices on the market adopt an external structure design. The core working logic of this type of device is to simulate the manual waste toner handling process. That is, after opening the rubber stopper at the toner outlet of the toner cartridge through a mechanical structure, in order to improve the waste toner discharge efficiency, the toner cartridge must be repeatedly shaken with a robotic arm or eccentric wheel structure, or even the toner cartridge shell must be struck with a hammer component to force the waste toner in the waste bin to be discharged from the toner outlet. However, the toner cartridge shell is mostly made of thin-walled plastic material, which integrates high-precision core components such as roller cores and developing rollers, and the assembly gaps between components are extremely small. The mechanical shaking of the external device can easily cause the internal components of the toner cartridge to shift. In particular, the roller core is a precision component with a surface coating thickness of only a few micrometers. Even slight collisions or vibrations can cause scratches on the coating. Directly striking the shell can cause structural damage such as shell deformation and snap breakage. Some damaged toner cartridges cannot even meet the requirements for reassembly and must be scrapped. Even if they are not scrapped immediately, damaged toner cartridges will frequently have quality problems such as printing ghosting and background graying during subsequent use, increasing the cost of consumable replacement.

[0004] In addition, during the waste toner recycling process, waste toner stored in the waste bin for a long time is easily affected by changes in environmental temperature and humidity and electrostatic adsorption, gradually agglomerating into lumpy structures. Mechanical shaking and tapping can only act on the entire toner cartridge, and cannot apply precise force to the waste bin. Furthermore, existing devices generally rely on suction for waste toner recycling, which generates limited negative pressure and is insufficient to break up the formed waste toner clumps. Moreover, the suction port of existing external devices is only aligned with a single toner outlet, and the irregular cavity of the waste bin results in uneven negative pressure coverage, creating cleaning dead zones in deep areas and corners due to reduced negative pressure. This residual waste toner not only reduces the resource recovery rate, but also falls off the toner cartridge during subsequent use. The previous shaking and tapping have already caused abnormal gaps between components, and residual waste toner can easily enter the developing area, aggravating the wear of the roller core and developing roller, thus leading to a decline in print quality. Therefore, we need to design an integrated waste toner recycling and processing device for printer toner cartridges. Summary of the Invention

[0005] Therefore, it is necessary to provide a waste toner recycling and processing device for printer drums to address the existing technical problems.

[0006] To address the problems in the existing technology, the technical solution adopted by this invention is as follows:

[0007] A device for recycling and processing waste toner from printer drums includes:

[0008] A waste bin is located next to the drum core of the toner cartridge. A main cover plate is hinged to the scraper on the side away from the drum core. A secondary cover plate is located below the main cover plate. The secondary cover plate is hinged to the side of the waste bin closer to the drum core.

[0009] A hollow tube is rotatably installed in the middle of the waste bin. A partition is installed below the hollow tube, and a pressure plate is installed above the hollow tube. The end of the pressure plate near the main cover plate is hinged to the inner wall of the waste bin. A baffle that is slidably connected to the inner wall of the waste bin is installed on the side of the hollow tube away from the main cover plate.

[0010] The hollow tube is equipped with a power mechanism at both ends to drive the hollow tube to rotate. The first output end of the power mechanism is connected to a pulley deflection mechanism that drives the main cover plate, the secondary cover plate and the pressure plate to deflect. The second output end is connected to a pulley lifting mechanism that drives the baffle to move vertically. The third output end is connected to a striking mechanism that strikes the lower end of the partition.

[0011] Furthermore, the power mechanism includes a gear ring fixedly connected to the end of the hollow tube on the same axis. The gear ring is rotatably connected to the outer wall of the toner drum. A main gear driven by a motor is provided on the side of the gear ring. The main gear is the second output end of the power mechanism. A main gear is provided on the upper end of the gear ring. The main gear is the first output end of the power mechanism.

[0012] A secondary gear is provided at the lower end of the gear ring. The secondary gear is the third output end of the power mechanism. The gear ring meshes with the main gear, the primary gear and the secondary gear respectively. The pulley deflection mechanism is located next to the primary gear. The primary gear drives the pressure plate, the main cover plate and the secondary cover plate to deflect in the same direction along the hinge through the pulley deflection mechanism.

[0013] Furthermore, the pulley deflection mechanism includes a first pulley arranged coaxially with the main gear, the first pulley being connected to the main gear in a transmission connection, and a second pulley fixedly connected to the hinge of the main cover plate above the first pulley. The first pulley and the second pulley are connected by a belt drive.

[0014] Below the second pulley is a third pulley that is fixedly connected to the hinge of the sub-cover plate. The second and third pulleys are connected by belt drive. Below the third pulley is a fourth pulley that is fixedly connected to the hinge of the pressure plate. The third and fourth pulleys are connected by belt drive.

[0015] Furthermore, the pulley lifting mechanism includes an idler tooth rotatably disposed beside the main gear, the idler tooth meshing with the main gear, the idler tooth being coaxially connected to a fifth pulley, a sixth pulley being disposed above the fifth pulley, and the fifth pulley and the sixth pulley being connected by a belt drive.

[0016] The sixth pulley is coaxially fixed to a lifting gear, and a rack is provided on the side of the lifting gear. The rack meshes with the lifting gear. The two sides of the waste bin are respectively formed with strip-shaped clearance holes. The two sides of the baffle are respectively fixed with pins that slide in connection with the strip-shaped clearance holes. The side of the rack near the baffle is fixed to the pin.

[0017] Furthermore, a top plate is installed above the hollow tube and is fixed to the inner wall of the waste bin. A scraper is elastically connected to the lower end of the top plate by a spring.

[0018] The scraper end near the baffle is always resisted by the elastic force of the spring. When the baffle moves upward, the scraper removes the waste powder on the side of the baffle near the hollow tube.

[0019] Furthermore, a sealing strip is fixed to the upper end of the rack, which covers the strip-shaped clearance hole and is slidably connected to the side wall of the drum.

[0020] Furthermore, each side of the seal is provided with a retainer fixed to the side wall of the drum. The retainer is dynamically sealed to the seal. A tail wedge is fixed to the end of the rack away from the seal. A guide rail is fixed to the side of the retainer away from the side wall of the drum. The tail wedge is slidably connected to the guide rail.

[0021] Furthermore, the striking mechanism also includes a residual tooth fixedly connected to the auxiliary gear on the same axis. The lower end of the residual tooth is provided with a reciprocating gear that is rotatably connected to the side wall of the drum. When the residual tooth rotates, it intermittently meshes with the reciprocating gear.

[0022] A swing arm is installed at the lower part of the middle of the partition. The middle part of the swing arm is fixedly connected to the reciprocating gear on the same axis, and the common axis of rotation of the two is hinged to the inner wall of the waste bin through a torsion spring. Cylindrical hammers are formed at both ends of the swing arm.

[0023] Furthermore, the hollow tubes are formed with perforations at equal intervals along the axial direction.

[0024] Furthermore, strong magnetic blocks are coaxially fixed to the main gear and the idler gear, and wear-resistant iron discs are fixed to the side of the first pulley near the main gear and the side of the fifth pulley near the idler gear, respectively. The strong magnetic blocks and the wear-resistant iron discs are connected by magnetic force transmission.

[0025] The beneficial effects of this invention compared to the prior art are:

[0026] Firstly, this device adopts an integrated structural design, eliminating the need for external mechanical shaking or shell impact on the toner cartridge. Waste toner is recycled through internal main and secondary cover plates and transmission limiting mechanisms. This effectively solves the problems caused by mechanical shaking in traditional external devices, such as displacement of internal components of the toner cartridge, scratches on the roller core coating, and shell deformation and buckle breakage caused by impact. The toner cartridge does not need to bear external mechanical force, significantly improving the secondary assembly qualification rate. In subsequent use, printing ghosting, background graying and other quality problems are greatly reduced, reducing the frequency and cost of consumable replacement.

[0027] Secondly, this device uses residual teeth and reciprocating gears to drive the swing arm, which, together with the cylindrical hammer head, periodically strikes the partition plate. This can efficiently break up waste powder clumps that have been stored for a long time. At the same time, the hollow tube has perforations at equal intervals along its axis, which makes the negative pressure evenly cover the waste bin during rotation. This effectively reduces the attenuation of negative pressure and allows waste powder in deep and corner areas to be fully sucked up, significantly improving the waste powder recovery rate. This prevents residual waste powder from entering the developing area and aggravating component wear, ensuring stable printing quality.

[0028] Thirdly, this device reduces negative pressure leakage by sealing the connection point with the main cover plate and the auxiliary cover plate. Combined with the hollow tube rotation suction and perforation design, it greatly improves the efficiency of waste powder discharge. At the same time, when the rack drives the baffle to move, the seal strip always covers the strip-shaped clearance hole under the limit of the card seat, forming a dynamic sealing structure to prevent waste powder from leaking from the clearance hole. Compared with the single powder outlet suction and unsealed design of traditional external devices, this device not only improves the recycling efficiency, but also prevents waste powder from flying and causing harm to the environment and human health. Attached Figure Description

[0029] Figure 1 This is a three-dimensional structural diagram of an embodiment;

[0030] Figure 2 This is an exploded three-dimensional structural diagram of the embodiment;

[0031] Figure 3 yes Figure 2 Enlarged view of the structure at point A in the middle;

[0032] Figure 4 This is a three-dimensional exploded view of the power mechanism in the embodiment;

[0033] Figure 5 yes Figure 4 Enlarged view of the structure at point B in the middle;

[0034] Figure 6 This is a front view of the pulley deflection mechanism, pulley lifting mechanism, and striking mechanism in the embodiment;

[0035] Figure 7 This is a top view of an embodiment;

[0036] Figure 8 yes Figure 7 Half-section view at point CC;

[0037] Figure 9 yes Figure 7 A three-dimensional half-section view at the C-axis.

[0038] Figure 10 yes Figure 9 Enlarged view of the structure at point D.

[0039] The numbers on the map are:

[0040] 1. Waste bin; 2. Main cover plate; 3. Secondary cover plate; 4. Pressure plate; 5. Partition plate; 6. Baffle plate; 7. Hollow tube; 8. Power mechanism; 9. Main gear; 10. Strong magnetic block; 11. Wear-resistant iron disc; 12. Gear ring; 13. Main gear; 14. Secondary gear; 15. Pulley deflection mechanism; 16. First pulley; 17. Second pulley; 18. Third pulley; 19. Fourth pulley; 20. Pulley lifting mechanism; 21. Top plate; 22. Scraper; 23. Inertial tooth; 24. Fifth pulley; 25. Sixth pulley; 26. Lifting gear; 27. Rack; 28. Seal; 29. ​​Card holder; 30. Tail wedge; 31. Striking mechanism; 32. Residual tooth; 33. Reciprocating gear; 34. Swing rod; 35. Hammer. Detailed Implementation

[0041] To further understand the features, technical means, and specific objectives and functions achieved by the present invention, the present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.

[0042] refer to Figures 1 to 10 A device for recycling and processing waste toner from printer drums, comprising:

[0043] The scraper is hinged to the main cover plate 2 on the side away from the drum core (see reference here). Figure 8 A secondary cover plate 3 is provided below the main cover plate 2, and the secondary cover plate 3 is hinged to the side of the waste bin 1 near the roller core.

[0044] A hollow tube 7 is rotatably installed in the middle of the waste bin 1. A partition 5 is installed below the hollow tube 7. A pressure plate 4 is installed above the hollow tube 7. The end of the pressure plate 4 near the main cover plate 2 is hinged to the inner wall of the waste bin 1. A baffle 6 that is slidably connected to the inner wall of the waste bin 1 is installed on the side of the hollow tube 7 away from the main cover plate 2.

[0045] Both ends of the hollow tube 7 are respectively provided with a power mechanism 8 for driving the hollow tube 7 to rotate (see reference here). Figure 6 and Figure 8The first output end of the power mechanism 8 is connected to a pulley deflection mechanism 15 that drives the main cover plate 2, the secondary cover plate 3 and the pressure plate 4 to deflect; the second output end is connected to a pulley lifting mechanism 20 that drives the baffle 6 to make vertical displacement; and the third output end is connected to a striking mechanism 31 that strikes the lower end of the partition 5.

[0046] When the device is in operation, the operator opens one end of the hollow tube 7 and connects it to the suction port of an external vacuum cleaner. The vacuum cleaner then starts and collects the waste powder in the waste bin 1 through the hollow tube 7. During the vacuuming process, the power mechanism 8 starts and drives the hollow tube 7 to rotate. During the rotation of the hollow tube 7, the first output end of the power mechanism 8 drives the main cover plate 2, the secondary cover plate 3 and the pressure plate 4 to deflect. After the main cover plate 2 and the secondary cover plate 3 deflect, they will seal the connection between the roller core and the waste bin 1 to prevent the suction efficiency from being affected by negative pressure leakage during the suction process.

[0047] In addition, after the pressure plate 4 deflects downward, it will press against the outside of the hollow tube 7 from top to bottom. During the rotation, the hollow tube 7 will continuously press against the lower end of the pressure plate 4, thereby removing the waste powder attached to the outer wall of the hollow tube 7. When the hollow tube 7 rotates, the second output end of the power mechanism 8 will drive the baffle 6 to move upward. When the toner cartridge is working normally, the waste powder scraped off by the scraper will adhere to the side of the baffle 6 near the hollow tube 7. When the baffle 6 moves upward, the waste powder attached to the side of the baffle 6 near the hollow tube 7 will be scraped off (when the baffle 6 moves downward to reset, the baffle 6 will scrape off the waste powder on the inner wall of the waste bin 1), reducing the residue of waste powder in the waste bin 1.

[0048] Meanwhile, the third output end of the power mechanism 8 will knock on the partition 5 loaded with waste material during the rotation of the hollow tube 7, so as to prevent the waste material on the upper end of the partition 5 from clumping and affecting the recycling and treatment of waste powder.

[0049] To further elaborate on the detailed structure of the power mechanism 8, the following features are also included:

[0050] like Figure 4 , Figure 5 and Figure 6 As shown, the power mechanism 8 includes a gear ring 12 coaxially fixed to the end of the hollow tube 7. The gear ring 12 is rotatably connected to the outer wall of the toner drum. A main gear 9 driven by a motor is provided on the side of the gear ring 12. The main gear 9 is the second output end of the power mechanism 8. A main gear 13 is provided at the upper end of the gear ring 12. The main gear 13 is the first output end of the power mechanism 8.

[0051] A secondary gear 14 is provided at the lower end of the gear ring 12. The secondary gear 14 is the third output end of the power mechanism 8. The gear ring 12 meshes with the main gear 9, the main gear 13 and the secondary gear 14 respectively. The pulley deflection mechanism 15 is provided on the side of the main gear 13. The main gear 13 drives the pressure plate 4, the main cover plate 2 and the secondary cover plate 3 to deflect in the same direction along the hinge through the pulley deflection mechanism 15.

[0052] After the motor starts, its output shaft drives the main gear 9 to rotate. Since the main gear 9 meshes with the gear ring 12, the gear ring 12 rotates accordingly, which in turn drives the hollow tube 7 fixed to it to rotate synchronously. During the rotation of the gear ring 12, it simultaneously drives the upper main gear 13 and the lower auxiliary gear 14 to rotate, realizing the distribution of power to the three output ends.

[0053] The main gear 13 serves as the first output end, transmitting power to the pulley deflection mechanism 15, which drives the main cover plate 2, the secondary cover plate 3, and the pressure plate 4 to deflect via pulley transmission; the main gear 9 serves directly as the second output end, providing power to the pulley lifting mechanism 20 to drive the baffle 6 to move; the secondary gear 14 serves as the third output end, providing power to the striking mechanism 31 to achieve the effect of a single power source driving multiple mechanisms to work together.

[0054] To supplement the detailed structure of the pulley deflection mechanism 15, the following features are also provided:

[0055] like Figure 5 , Figure 6 and Figure 8 As shown, the pulley deflection mechanism 15 includes a first pulley 16 coaxially arranged with the main gear 13. The first pulley 16 and the main gear 13 are connected in a transmission. A second pulley 17 is arranged above the first pulley 16 and fixedly connected to the hinge of the main cover plate 2. The first pulley 16 and the second pulley 17 are connected by a belt drive.

[0056] Below the second pulley 17, a third pulley 18 is fixedly connected to the hinge of the sub-cover plate 3. The second pulley 17 and the third pulley 18 are connected by belt drive. Below the third pulley 18, a fourth pulley 19 is fixedly connected to the hinge of the pressure plate 4. The third pulley 18 and the fourth pulley 19 are connected by belt drive.

[0057] When the main gear 13 rotates, the first pulley 16, which is coaxial with it, rotates synchronously. The first pulley 16 drives the second pulley 17 above it to rotate via a belt. Since the second pulley 17 is fixedly connected to the hinge of the main cover plate 2, the rotation of the second pulley 17 directly drives the main cover plate 2 to deflect around the hinge point. At the same time, the second pulley 17 drives the third pulley 18 below it to rotate via a belt. The third pulley 18 is fixedly connected to the hinge of the auxiliary cover plate 3, thereby driving the auxiliary cover plate 3 to deflect in the same direction. The third pulley 18 continues to drive the fourth pulley 19 below it to rotate via a belt. The fourth pulley 19 is fixedly connected to the hinge of the pressure plate 4, ultimately achieving that the pressure plate 4 also deflects in the same direction along the hinge point, ensuring the consistency of the actions of the main cover plate 2, the auxiliary cover plate 3, and the pressure plate 4. After the main cover plate 2 and the auxiliary cover plate 3 deflect, their ends will abut against each other, and after the pressure plate 4 deflects, it will press against the upper end of the hollow tube 7.

[0058] To supplement the detailed structure of the pulley lifting mechanism 20, the following features are also provided:

[0059] like Figure 5 , Figure 6 and Figure 8 As shown, the pulley lifting mechanism 20 includes an idler tooth 23 rotatably disposed beside the main gear 13. The idler tooth 23 meshes with the main gear 13. The idler tooth 23 is coaxially connected to a fifth pulley 24. A sixth pulley 25 is disposed above the fifth pulley 24. The fifth pulley 24 and the sixth pulley 25 are connected by a belt drive.

[0060] The sixth pulley 25 is coaxially fixed to the lifting gear 26. A rack 27 is provided on the side of the lifting gear 26. The rack 27 meshes with the lifting gear 26. The waste bin 1 has strip-shaped clearance holes formed on both sides. The baffle 6 has pins fixed to both sides that are slidably connected to the strip-shaped clearance holes. The side of the rack 27 near the baffle 6 is fixed to the pin.

[0061] When the secondary gear 14 rotates, the idler gear 23 meshing with it rotates accordingly. The idler gear 23 drives the sixth pulley 25 to rotate via the fifth pulley 24. The sixth pulley 25 drives the rack 27 to move upward via the lifting gear 26. Since the rack 27 is fixedly connected to the pins on both sides of the baffle 6, and the pins slide within the strip-shaped clearance holes of the waste bin 1, the rack 27 will drive the baffle 6 to move vertically along the strip-shaped clearance holes, ultimately realizing the lifting and lowering action of the baffle 6.

[0062] In order to remove the waste powder on the side of the baffle 6 near the hollow tube 7, the following features are specifically provided:

[0063] like Figure 8 As shown, a top plate 21 is fixedly connected to the inner wall of the waste bin 1 above the hollow tube 7, and a scraper 22 is elastically connected to the lower end of the top plate 21 by a spring.

[0064] The end of the scraper 22 near the baffle 6 is always in contact with the baffle 6 by the elastic force of the spring. When the baffle 6 moves upward, the scraper 22 removes the waste powder on the side of the baffle 6 near the hollow tube 7.

[0065] Under the fixing action of the top plate 21, the scraper 22 is always kept in contact with the baffle 6 by the spring. The elastic force of the spring can adaptively adjust the contact force according to the surface condition of the baffle 6 to avoid damage to the baffle 6 caused by rigid contact. When the pulley lifting mechanism 20 drives the baffle 6 to move upward, the waste powder attached to the side of the baffle 6 near the hollow tube 7 slides relative to the scraper 22. Under the action of the spring, the scraper 22 tightly adheres to the surface of the baffle 6, scraping the waste powder off the surface of the baffle 6. The scraped waste powder falls into the waste bin 1, which is easily recovered by the hollow tube 7 through suction, reducing the residue of waste powder on the surface of the baffle 6. When the baffle 6 moves downward, it will remove the waste powder on the inner wall of the waste bin 1, preventing some waste powder from adhering to the inner wall of the waste bin 1 during the waste powder recovery process.

[0066] To cover the strip-shaped clearance holes on both sides of the waste bin 1 and prevent waste powder in the waste bin 1 from leaking through the strip-shaped clearance holes during operation, the following features are specifically designed:

[0067] like Figure 5 , Figure 6 and Figure 8 As shown, a sealing strip 28 is fixedly connected to the upper end of the rack 27. The sealing strip 28 covers the strip-shaped clearance hole and is slidably connected to the side wall of the drum.

[0068] As the rack 27 moves vertically with the baffle 6, the sealing strip 28, which is fixed to it, slides synchronously along the side wall of the drum, always maintaining its coverage of the strip-shaped clearance hole. The sealing strip 28 fits tightly against the side wall of the drum, forming a sealed structure that effectively prevents waste powder in the waste bin 1 from leaking to the outside through the strip-shaped clearance hole. This follow-up sealing design does not affect the normal lifting and lowering of the baffle 6, and can ensure the sealing of the strip-shaped clearance hole in real time, avoiding environmental impact and resource waste caused by waste powder leakage.

[0069] In order to limit the movement of the seal 28 and improve the airtightness of the waste bin 1, the following features are also provided:

[0070] like Figure 6 As shown, the seal 28 is provided with a card seat 29 on both sides, which is fixed to the side wall of the drum. The card seat 29 is dynamically sealed to the seal 28. The end of the rack 27 away from the seal 28 is fixedly connected to a tail wedge 30. The side of the card seat 29 away from the side wall of the drum is fixedly connected to a guide rail. The tail wedge 30 is slidably connected to the guide rail.

[0071] The retainer 29 limits the movement trajectory of the seal 28, preventing it from shifting during movement and ensuring that it remains aligned with the strip-shaped clearance hole. The dynamic sealing structure between the retainer 29 and the seal 28 further enhances the sealing effect, preventing waste powder from leaking through the gap between them. Simultaneously, the tail wedge 30 at the end of the rack 27 slides within the guide rail fixed to the retainer 29, providing guidance and limiting for the rack 27's movement. This ensures the stability of the rack 27 when it drives the baffle 6 up and down, indirectly improving the efficiency of waste powder removal and recycling.

[0072] To supplement the detailed structure of the striking mechanism 31, the following features are also provided:

[0073] like Figure 6 , Figure 8 and Figure 10 As shown, the striking mechanism 31 also includes a residual tooth 32 that is coaxially fixed to the auxiliary gear 14. The lower end of the residual tooth 32 is provided with a reciprocating gear 33 that is rotatably connected to the side wall of the drum. When the residual tooth 32 rotates, it intermittently meshes with the reciprocating gear 33.

[0074] A swing arm 34 is provided at the lower part of the middle of the partition 5. The middle part of the swing arm 34 is coaxially fixed to the reciprocating gear 33, and the common axis of rotation of the two is hinged to the inner wall of the waste bin 1 through a torsion spring. Cylindrical hammerheads 35 are formed at both ends of the swing arm 34.

[0075] When the secondary gear 14 rotates, the residual tooth 32, which is coaxial with it, rotates synchronously. The toothed portion of the residual tooth 32 periodically meshes with the reciprocating gear 33 below. When the residual tooth 32 meshes with the reciprocating gear 33, it drives the reciprocating gear 33 to rotate, which in turn drives the rocker arm 34, which is coaxial with it, to swing around the hinge point, and the torsion spring is twisted to store energy. When the toothless portion of the residual tooth 32 rotates to be opposite the reciprocating gear 33, the two disengage, the torsion spring releases its elastic force, and the rocker arm 34 quickly returns to its original position. The end of the rocker arm 34 strikes the partition 5. The periodic striking action of the rocker arm 34 on the partition 5 is achieved through the intermittent meshing of the residual tooth 32 and the reciprocating gear 33. When the rocker arm 34 returns to its original position and strikes the partition 5 under the action of the torsion spring, the cylindrical hammers 35 at both ends of the rocker arm 34 directly contact the partition 5. The cylindrical structure design can concentrate the impact force of the swing arm 34 at the contact point between the hammer head 35 and the partition plate 5. Compared with the direct impact of the end of the swing arm 34, it can effectively increase the impact force per unit area and more easily break the waste powder clumps attached to the partition plate 5.

[0076] To improve the recycling efficiency of waste powder in waste bin 1 by hollow tube 7, the following features are specifically designed:

[0077] like Figure 10 As shown, the hollow tube 7 is formed with perforations at equal intervals along the axial direction.

[0078] When the hollow tube 7 is connected to and rotates with the external vacuum cleaner, the negative pressure generated by the vacuum cleaner is transmitted to different areas of the waste bin 1 through the perforations on the hollow tube 7. The equally spaced array of perforations ensures that the negative pressure can evenly cover the axial direction of the waste bin 1. Compared with the suction method of a single powder outlet, this effectively reduces the attenuation of negative pressure, allowing waste powder in the depths and corners of the waste bin 1 to be sucked into the hollow tube 7 under the action of negative pressure. At the same time, the rotation of the hollow tube 7 allows the perforations to continuously change the suction position, further improving the suction coverage and recycling efficiency of waste powder.

[0079] During waste recycling, the gear ring 12 and the secondary gear 14 rotate continuously. However, the main cover plate 2, the secondary cover plate 3, and the pressure plate 4 only need to deflect to their limit positions before stopping. Similarly, the baffle 6 only needs to move upward to its limit position before stopping. Therefore, in order to limit the transmission between the main gear 13 and the first pulley 16, as well as the transmission between the idler gear 23 and the fifth pulley 24, and to prevent the main gear 13 and the idler gear 23 from interfering with the rotation of the gear ring 12 due to their inability to rotate continuously, the following features are specifically provided:

[0080] like Figure 5 and Figure 6 As shown, the main gear 13 and the idler gear 23 are respectively fixedly connected to a strong magnetic block 10 on the same axis. The first pulley 16 is fixedly connected to the side of the main gear 13 and the fifth pulley 24 is fixedly connected to the side of the idler gear 23. The strong magnetic block 10 and the wear-resistant iron disc 11 are connected by magnetic force transmission.

[0081] When the main gear 13 rotates, its fixed strong magnetic block 10 drives the wear-resistant iron disc 11 on the first pulley 16 to rotate through magnetic force, thereby driving the pulley deflection mechanism 15 to operate. Similarly, when the idler tooth 23 rotates, its fixed strong magnetic block 10 drives the wear-resistant iron disc 11 on the fifth pulley 24 to rotate through magnetic force, driving the pulley lifting mechanism 20 to operate. When the main cover plate 2, the secondary cover plate 3, and the pressure plate 4 deflect to their limit positions, or the baffle 6 is displaced to its limit position, the corresponding pulley mechanism cannot continue to rotate. Relative sliding occurs between the wear-resistant iron disc 11 and the strong magnetic block 10, and the magnetic transmission becomes sliding friction. The main gear 13 and the idler tooth 23 can continue to rotate with the gear ring 12, avoiding reverse interference to the gear ring 12 due to mechanism jamming, thus realizing the transmission limit and protection functions.

[0082] The detailed working principle of this device is as follows: The operator first opens one end of the hollow tube 7 and seals it with the suction port of the external vacuum cleaner. Then, the vacuum cleaner is started. The vacuum cleaner creates a negative pressure environment in the waste bin 1 through the hollow tube 7 and the equally spaced perforations in the tube body. At the same time, the motor of the power mechanism 8 is started. The motor drives the main gear 9 to rotate, which in turn drives the meshing gear ring 12 to rotate. The gear ring 12 drives the hollow tube 7, which is fixed to the same axis, to rotate synchronously, realizing the rotational suction of the hollow tube 7. When the gear ring 12 rotates, it synchronously drives the upper main gear 13 and the lower auxiliary gear 14 to rotate, completing the power splitting.

[0083] The main gear 13 serves as the first output end of the power mechanism 8. Its fixed strong magnetic block 10 drives the first pulley 16 to rotate via magnetic force. The first pulley 16, through belt drive, sequentially drives the second pulley 17, the third pulley 18, and the fourth pulley 19 to rotate, respectively driving the main cover plate 2, the secondary cover plate 3, and the pressure plate 4 to deflect in the same direction along their respective hinge points. After the main cover plate 2 and the secondary cover plate 3 deflect to their extreme positions, they seal the connection between the roller core and the waste bin 1, preventing negative pressure leakage. After deflection, the pressure plate 4 presses against the outer wall of the hollow tube 7, removing waste powder adhering to the outer wall of the tube during its rotation. The strong magnetic block 10 slides relative to the wear-resistant iron disc 11 to achieve limiting.

[0084] The main gear 9, as the second output end of the power mechanism 8, drives the idler gear 23 to rotate. The strong magnetic block 10 on the idler gear 23 drives the fifth pulley 24 to rotate. Through belt transmission, the sixth pulley 25 and the coaxial lifting gear 26 rotate. The lifting gear 26 meshes with the rack 27, causing the baffle 6 to move upward along the strip-shaped clearance hole. The scraper 22, which is elastically connected by a spring below the top plate 21, adheres to the surface of the baffle 6 and removes the waste powder attached to its surface during the rise of the baffle 6. The sealing strip 28 at the upper end of the rack 27 moves synchronously with the rack 27 and always covers the strip-shaped clearance hole under the limit of the card seat 29 to prevent waste powder leakage. After the baffle 6 rises to the limit position, the strong magnetic block 10 slides relative to the wear-resistant iron disc 11 to achieve the limit. When it descends and resets, the waste powder on the inner wall of the waste bin 1 can be removed.

[0085] Simultaneously, the secondary gear 14, serving as the third output end of the power mechanism 8, drives the coaxial residual tooth 32 to rotate. The residual tooth 32 periodically meshes with the reciprocating gear 33, causing the swing arm 34 to swing around the hinge point and torsion spring. After disengaging, the torsion spring resets, causing the cylindrical hammers 35 at both ends of the swing arm 34 to strike the partition plate 5, breaking up the waste powder clumps. Throughout the process, rotational suction, mechanism sealing, waste powder removal, and clump breaking are carried out in a coordinated manner, achieving efficient recycling.

[0086] The above embodiments only illustrate one or more implementations of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this patent should be determined by the appended claims.

Claims

1. A device for recycling and processing waste toner from printer drums, characterized in that, include: A waste bin (1) is provided on the side of the drum core of the toner cartridge. A main cover plate (2) is hinged to the side of the scraper away from the drum core. A secondary cover plate (3) is provided below the main cover plate (2). The secondary cover plate (3) is hinged to the side of the waste bin (1) near the drum core. A hollow tube (7) is provided in the middle of the waste bin (1). A partition (5) is provided below the hollow tube (7). A pressure plate (4) is provided above the hollow tube (7). One end of the pressure plate (4) is hinged to the inner wall of the waste bin (1). A baffle (6) is provided on the side of the hollow tube (7) away from the main cover plate (2). The hollow tube (7) is provided with a power mechanism (8) at both ends to drive the hollow tube (7) to rotate. The first output end of the power mechanism (8) is connected to a pulley deflection mechanism (15) that drives the main cover plate (2), the secondary cover plate (3) and the pressure plate (4) to deflect. The second output end is connected to a pulley lifting mechanism (20) that drives the baffle (6) to make vertical displacement. The third output end is connected to a striking mechanism (31) that strikes the lower end of the partition plate (5).

2. The waste toner recycling and processing device for printer drums according to claim 1, characterized in that, The power mechanism (8) includes a gear ring (12) coaxially fixed to the end of the hollow tube (7). The gear ring (12) is rotatably connected to the outer wall of the toner drum. A main gear (9) driven by a motor is provided on the side of the gear ring (12). The main gear (9) is the second output end of the power mechanism (8). A main gear (13) is provided on the upper end of the gear ring (12). The main gear (13) is the first output end of the power mechanism (8). A secondary gear (14) is provided at the lower end of the gear ring (12). The secondary gear (14) is the third output end of the power mechanism (8). The gear ring (12) meshes with the main gear (9), the main gear (13) and the secondary gear (14) respectively. The pulley deflection mechanism (15) is located on the side of the main gear (13). The main gear (13) drives the pressure plate (4), the main cover plate (2) and the secondary cover plate (3) to deflect in the same direction along the hinge through the pulley deflection mechanism (15).

3. The waste toner recycling and processing device for printer drums according to claim 2, characterized in that, The pulley deflection mechanism (15) includes a first pulley (16) coaxially arranged with the main gear (13), the first pulley (16) and the main gear (13) are connected by transmission, and a second pulley (17) is provided above the first pulley (16) and fixedly connected to the hinge of the main cover plate (2). The first pulley (16) and the second pulley (17) are connected by belt transmission. Below the second pulley (17) is a third pulley (18) that is fixedly connected to the hinge of the sub-cover plate (3). The second pulley (17) and the third pulley (18) are connected by belt drive. Below the third pulley (18) is a fourth pulley (19) that is fixedly connected to the hinge of the pressure plate (4). The third pulley (18) and the fourth pulley (19) are connected by belt drive.

4. The waste toner recycling and processing device for printer drums according to claim 3, characterized in that, The pulley lifting mechanism (20) includes an idler tooth (23) rotatably disposed beside the main gear (13), the idler tooth (23) meshing with the main gear (13), the idler tooth (23) being coaxially connected to a fifth pulley (24), a sixth pulley (25) being disposed above the fifth pulley (24), and the fifth pulley (24) and the sixth pulley (25) being connected by a belt drive. The sixth pulley (25) is coaxially fixed to the lifting gear (26), and a rack (27) is provided on the side of the lifting gear (26). The rack (27) meshes with the lifting gear (26). The waste bin (1) has strip-shaped clearance holes formed on both sides. The baffle (6) has pins fixed on both sides that are slidably connected to the strip-shaped clearance holes. The side of the rack (27) near the baffle (6) is fixed to the pin.

5. A waste toner recycling and processing device for printer drums according to claim 4, characterized in that, A top plate (21) is fixedly connected to the inner wall of the waste bin (1) above the hollow tube (7), and a scraper (22) is elastically connected to the lower end of the top plate (21) by a spring. The scraper (22) is always in contact with the baffle (6) by the elastic force of the spring. When the baffle (6) moves upward, the scraper (22) removes the waste powder on the side of the baffle (6) near the hollow tube (7).

6. A waste toner recycling and processing device for printer drums according to claim 4, characterized in that, A sealing strip (28) is fixed to the upper end of the rack (27). The sealing strip (28) covers the strip-shaped clearance hole and is slidably connected to the side wall of the drum.

7. A waste toner recycling and processing device for printer drums according to claim 6, characterized in that, The seal (28) is provided with a card holder (29) on both sides, which is fixed to the side wall of the drum. The card holder (29) is dynamically sealed to the seal (28). The end of the rack (27) away from the seal (28) is fixed to a tail wedge (30). The side of the card holder (29) away from the side wall of the drum is fixed to a guide rail. The tail wedge (30) is slidably connected to the guide rail.

8. A waste toner recycling and processing device for printer drums according to claim 2, characterized in that, The striking mechanism (31) also includes a residual tooth (32) that is coaxially fixed to the auxiliary gear (14). The lower end of the residual tooth (32) is provided with a reciprocating gear (33) that is rotatably connected to the side wall of the drum. When the residual tooth (32) rotates, it intermittently meshes with the reciprocating gear (33). A swing arm (34) is provided at the bottom of the middle part of the partition (5). The middle part of the swing arm (34) is coaxially fixed with the reciprocating gear (33), and the common axis of rotation of the two is hinged to the inner wall of the waste bin (1) through a torsion spring. Cylindrical hammers (35) are formed at both ends of the swing arm (34).

9. A waste toner recycling and processing device for printer drums according to claim 1, characterized in that, Hollow tubes (7) are formed in an equally spaced array along the axial direction with perforations.

10. A waste toner recycling and processing device for printer drums according to claim 4, characterized in that, The main gear (13) and the idler gear (23) are respectively fixedly connected to a strong magnetic block (10) on the same axis. The first pulley (16) is fixedly connected to the side of the main gear (13) and the fifth pulley (24) is fixedly connected to the side of the idler gear (23) with a wear-resistant iron disc (11). The strong magnetic block (10) and the wear-resistant iron disc (11) are connected by magnetic transmission.

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