Assembly structure of split toner cartridge

Abstract

The present invention relates to an assembly structure of a split-type toner cartridge, comprising a toner cartridge body having a toner bin and a powder bin box detachably connected to the toner bin, a powder inlet being provided on the docking surface of the toner bin, and a powder outlet being provided on the docking surface of the powder bin box opposite to the powder inlet; a conveying mechanism for conveying toner to the powder outlet being provided in the powder bin box, a transmission member connected to the conveying mechanism being provided at the end of the powder bin box, a transmission mechanism being provided on the toner cartridge body that is transmission-connected to an actuating member in the toner cartridge body, and a linkage assembly that can mesh with the transmission member and the transmission mechanism as the powder bin box is assembled being elastically connected to the toner cartridge. The assembly structure of the split-type toner cartridge in the present invention is easy to replenish powder or has a low toner replacement cost, and can effectively realize the driving and conveying of toner into the toner cartridge body.

Description

Technical Field

[0001] The invention relates to the technical field of printers, and in particular to an assembly structure of a split type toner cartridge. Background Art

[0002] The toner cartridge mechanism used in existing laser printers is mainly divided into an integrated toner cartridge structure and a split toner cartridge structure. The integrated toner cartridge structure integrates both the imaging unit and the developing unit into the toner cartridge. After using up the toner in the toner cartridge, the user needs to replace the toner cartridge as a whole or refill it by themselves. Since there are many internal components in the toner cartridge, the replacement cost is high. If the user refills the toner cartridge by himself, it is easy to cause problems such as powder jamming or powder leakage during printing due to improper operation, which will affect the printing effect or contaminate the printed image. The existing split toner cartridge structure usually separates the powder bin and the developing roller into one component. When the toner in the powder bin is used up, the powder bin and the developing roller need to be replaced at the same time, and the replacement cost is high. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide an assembly structure of a split toner cartridge which is easy to replenish or has a low toner replacement cost and can effectively realize the drive and transportation of toner into the toner cartridge body.

[0004] The technical solution adopted by the present invention to solve the above technical problems is: an assembly structure of a split-type toner cartridge, characterized in that: it includes a toner cartridge body having a toner bin and a powder bin box detachably connected to the toner bin, a powder inlet is provided on the docking surface of the toner bin, and a powder outlet opposite to the powder inlet is provided on the docking surface of the powder bin box;

[0005] A conveying mechanism for conveying toner to the powder outlet is arranged in the powder bin box, a transmission member connected to the conveying mechanism is arranged at the end of the powder bin box, a transmission mechanism connected to the action member in the toner cartridge body is arranged on the toner cartridge body, and a linkage component is elastically connected to the toner bin that can engage with the transmission member and the transmission mechanism as the powder bin box is assembled.

[0006] The structure is simple. The linkage assembly includes an elastic member, a linkage block and an engaging member. The engaging member is movably arranged on the linkage block. The elastic member is arranged on the toner bin and one end is connected to the linkage block. The deformation direction of the elastic member is the movement direction of the linkage block to engage with the transmission mechanism and the transmission member. A driving block is arranged on the toner bin box to push the linkage block to move in one direction of the transmission mechanism and the transmission member.

[0007] For convenient installation, at least one end of the toner bin is provided with a mounting plate, the mounting plate extends to the location where the toner bin box is provided, and the linkage block is connected to the mounting plate via an elastic member.

[0008] In order to ensure the stability of the moving direction of the linkage block and to ensure the reliable connection between the engaging part and the transmission mechanism and the transmission part, a guide groove consistent with the deformation direction of the elastic part is provided on the inner surface of the mounting plate. The linkage block is placed in the guide groove and has a contact portion exposed outside the guide groove for being pushed by the driving block.

[0009] The structure is simple, the transmission member is rotatably connected to the end of the powder bin box, and the transmission member has a groove opening outward;

[0010] The transmission mechanism is a transmission gear set, and the meshing member is a linkage gear, which can mesh with the output gear in the transmission gear set, and the linkage gear extends toward the transmission member to have a connecting portion that can be matched and placed in the groove, and the connecting portion can be limited in the groove.

[0011] In order to facilitate the engagement of the transmission member and the engagement member, a first convex tooth is arranged on the peripheral wall of the groove, and a second convex tooth that can engage with the first convex tooth is arranged on the outer peripheral wall of the connecting portion.

[0012] The structure is simple. The conveying mechanism comprises a lever and a spiral rod which are extended along the length direction of the powder bin box and are arranged in parallel. The lever and the spiral rod are connected in transmission, and the transmission member is connected to the spiral rod.

[0013] Preferably, a first toner groove is provided in the powder bin box corresponding to the lever, and a second toner groove is provided in the powder bin box corresponding to the spiral rod.

[0014] In order to prevent the toner from falling, being polluted or deteriorating when the toner is not assembled, a powder inlet cover is provided on the powder inlet, and a powder outlet cover is provided on the powder outlet.

[0015] A guide groove and a guide member that can be placed in the guide groove are matched and arranged on the butting surfaces of the powder bin box and the toner bin, and the guide groove extends along the assembly direction of the powder bin box.

[0016] Compared with the prior art, the advantages of the present invention are as follows: the assembly structure of the split toner cartridge in the present invention firstly provides an additional powder bin box independently of the toner bin. When in use, it is only necessary to add toner into the powder bin box. The powder bin box can be connected with the powder inlet on the toner bin through the powder outlet, thereby realizing the replenishment of toner into the toner bin. Since the powder bin box is detachably docked with respect to the toner bin, and the powder bin box is not associated with other components in the toner cartridge body, the toner addition in the powder bin box will not affect the toner supply and use of the toner bin during the printing process. This makes it convenient for users to disassemble the powder bin box from the toner bin and add toner to the powder bin box by themselves, and the requirement for users to replenish toner is low. On the other hand, even if the powder bin box is directly replaced, the cost is low.

[0017] On this basis, during the assembly process, the powder bin box can drive the linkage components to engage with the transmission parts and the transmission mechanism, so as to realize the transmission connection between the conveying mechanism in the powder bin box and the moving parts in the toner cartridge body, so that the powder bin box can transfer toner into the toner bin during the operation of the toner cartridge body, which is simple to operate and convenient to work. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 FIG. 1 is an installation diagram of the assembly structure of the split toner cartridge in the embodiment of the present invention in the housing.

[0019] Figure 2 It is a three-dimensional diagram of the assembly structure of the split toner cartridge in the embodiment of the present invention.

[0020] Figure 3 It is a three-dimensional exploded view of the assembly structure of the split toner cartridge in the embodiment of the present invention.

[0021] Figure 4 for Figure 3 Another perspective of the picture.

[0022] Figure 5 It is a cross-sectional view of the assembly structure of the split toner cartridge in the embodiment of the present invention.

[0023] Figure 6 for Figure 5 A partial enlarged view of . DETAILED DESCRIPTION

[0024] The present invention is further described in detail below with reference to the accompanying drawings.

[0025] like Figure 1 As shown, the assembly structure of the split toner cartridge in this embodiment is arranged in the casing of the printer and is matched with the toner cartridge body 100 installed in the casing.

[0026] The toner cartridge body 100 in the casing can adopt various types of toner cartridge bodies 100 in the prior art, such as the toner cartridge body 100 including a photosensitive drum, a developing roller, a transfer roller, a charging roller, and a toner bin 1 arranged above the developing roller. The toner cartridge body 100 in this embodiment extends as a whole in the left-right direction.

[0027] like Figures 2 to 6As shown, the assembly structure of the split toner cartridge includes a powder bin box 2 that can be detachably docked on the toner bin 1 of the toner cartridge body, and the powder bin box 2 is used to replenish toner into the toner bin 1. The powder bin box 2 in this embodiment matches the shape of the toner cartridge body 100 and is overall in the shape of a long strip, and the interior of the powder bin box 2 has a cavity for accommodating toner. In order to facilitate assembly and opening to replenish toner, the powder bin box 2 includes a box body that opens upward and a box cover covering the opening, and toner can be added and replenished into the box body by opening the box cover. The printer casing is provided with an opening for the toner cartridge body 100 and the powder bin box 2 to be installed in the casing, and a cover that can cover the opening is also rotatably provided on the casing.

[0028] In order to transport the toner in the powder bin box 2 to the toner bin 1, a powder inlet 11 is provided on the docking surface of the toner bin 1, and a powder outlet 21 is provided on the docking surface of the powder bin box 2 to be opposite to the powder inlet 11 on the toner bin 1. When the powder bin box 2 is docked and installed on the toner bin 1, the powder outlet 21 on the powder bin box 2 is matched and connected with the powder inlet 11 on the toner bin 1 to achieve communication. In order to ensure the sealing during the toner transportation process, a sealing gasket is arranged around the powder outlet 21 on the docking surface of the powder bin box 2, and a sealing gasket is also arranged around the powder inlet 11 on the docking surface of the toner bin 1, and the sealing gasket on the docking surface of the powder bin box 2 and the sealing gasket on the docking surface of the toner bin 1 can match and fit tightly.

[0029] In order to allow the toner to fall into the toner bin 1 by its own gravity, in this embodiment, the toner bin box 2 is installed above the toner bin 1. Thus, the upper surface of the toner bin 1 and the lower surface of the toner bin box 2 form a docking surface.

[0030] In order to further prevent the toner in the powder bin box 2 from being polluted, deteriorated, or leaked when not installed, and also to prevent the space in the toner bin 1 from being polluted, or the toner in the toner bin 1 from being polluted or deteriorated when the powder bin box 2 is removed. In this embodiment, a powder inlet cover 7 is provided on the powder inlet 11, and a powder outlet cover 8 is provided on the powder outlet 21. The powder inlet cover 7 and the powder outlet cover 8 can be opened and closed by manual toggling, but this method increases the user's operation steps and reduces the installation convenience of the powder bin box 2. In this embodiment, a first pusher 26 is provided on the powder bin box 2, and a first component 71 that can be pushed by the first pusher 26 to open the powder inlet 11 is provided on the powder inlet cover 7. A second pusher 16 is provided on the toner bin 1, and a second component 81 that can be pushed by the second pusher 16 to open the powder outlet 21 is provided on the powder outlet cover 8. In this way, the powder outlet cover 8 and the powder inlet cover 7 can be opened automatically during the assembly of the powder bin box 2 on the toner bin 1 .

[0031] In this embodiment, the first pusher 26, the second pusher 16, the first component 71, and the second component 81 are all plate bodies, and the powder inlet cover 7 and the powder outlet cover 8 move in a direction of relative separation to open the powder inlet 11 and the powder outlet 21. Specifically, an upper concave area is formed on the front part of the lower surface of the powder bin box 2 corresponding to the area after the powder inlet cover 7 is opened, and the first pusher 26 is extended downwardly on the upper concave area, and the first component 71 is provided on the upper surface of the powder inlet cover 7. The second pusher 16 that will not be touched by the first pusher 26 is extended upward on the upper surface of the front part of the toner bin 11, and the second component 81 that can match and touch the second pusher 16 is extended downward on the powder outlet cover 8. In this way, when the powder bin box 2 is pushed from front to back and installed on the toner bin 1, the first pusher 26 opens the powder inlet 11 by pushing the first component 71 backward, and the second pusher 16 opens the powder outlet 21 by blocking the second component 81 forward. During this process, the powder inlet cover 7 moves backward, and the powder outlet cover 8 moves forward. When the powder bin box 2 is assembled in place on the toner bin 1, the powder inlet 11 and the powder outlet 21 are both in an open state, and the powder inlet 11 and the powder outlet 21 are connected and connected, and the toner in the powder bin box 2 can be output from the powder outlet 21 and enter the toner bin 1 through the powder inlet 11, and the toner bin 1 realizes the supply of toner during the operation of the toner cartridge body 100.

[0032] At the same time, in order to enable the powder inlet cover 7 to automatically cover the powder inlet 11 after the powder bin box 2 is removed, thereby preventing impurities from entering the toner bin 1 and the toner in the powder bin box 2 from falling out. In this embodiment, the powder outlet cover 8 has a tendency to cover the powder outlet 21 and is elastically connected to the powder bin box 2, and the powder inlet cover 7 has a tendency to cover the powder inlet 11 and is elastically connected to the toner bin 1.

[0033] In this embodiment, a conveying mechanism 3 is also provided in the cavity of the powder bin box 2. The conveying mechanism 3 includes a stirring rod and a spiral rod 32 extending along the length direction of the powder bin box 2. The stirring rod and the spiral rod 32 are parallel. The first toner groove 23 and the second toner groove 24 are respectively provided in the powder bin box 2 corresponding to the stirring rod and the spiral rod 32. The height of the first toner groove 23 is higher than the second toner groove 24. The cross section of the second toner groove 24 is an inverted cone, which can improve the toner conveying capacity of the spiral rod 32. The powder outlet 21 of the powder bin box 2 in this embodiment is provided on the bottom surface of one end of the powder bin box 2. The spiral rod 32 can convey the toner to the powder outlet 21 by rotating. The stirring rod can play the role of stirring the toner in the powder bin box 2 and transferring the toner to the second toner groove 24, avoiding the toner from solidifying and ensuring the uniformity of the toner conveying amount. The stirring rod is provided with a paddle, and under the action of the stirring rod, the stirring rod paddles the toner in the second toner groove 24 to the second toner groove 24 where the spiral rod 32 is located. In order to facilitate transmission, meshing gears are provided at the same end of the stirring rod and the spiral rod 32, so that transmission between the stirring rod and the spiral rod 32 is achieved, and the rotation speed of the stirring rod and the spiral rod 32 is adjusted by adjusting the gear ratio.

[0034] If a driver is specially provided for the conveying mechanism 3, the cost of the split-type toner cartridge will be too high. Therefore, in this embodiment, the conveying mechanism 3 is connected to the action component in the toner cartridge body 100 by transmission. Specifically, the conveying mechanism 3 is connected to the photosensitive drum in the toner cartridge body 100 by transmission. Specifically, a transmission member 4 connected to the conveying mechanism 3 is provided at the end of the powder bin box 2, a transmission mechanism 5 connected to the photosensitive drum in the toner cartridge body 100 is provided on the toner cartridge body 100, and a linkage assembly 6 that can mesh with the transmission member 4 and the transmission mechanism 5 as the powder bin box 2 is assembled is elastically connected to the toner bin 1.

[0035] The transmission member 4 is rotatably connected to the end of the powder bin box 2 . The transmission member 4 is connected to the screw rod 32 in the conveying mechanism 3 to achieve rotation. The transmission member 4 has a groove 41 that opens outward.

[0036] The linkage assembly 6 comprises an elastic member 61 , a linkage block 62 and an engaging member 63 , wherein the engaging member 63 is movably arranged on the linkage block 62 .

[0037] At least one end of the toner bin 1 is provided with a mounting plate 12, and the mounting plate 12 extends to the position where the powder bin box 2 is provided, and the linkage block 62 is connected to the inner surface of the mounting plate 12 through an elastic member 61. The elastic member 61 is provided on the toner bin 1 and one end is connected to the linkage block 62. The elastic member 61 in this embodiment adopts a torsion spring, and a connecting shaft for the elastic member 61 to be mounted is provided on the mounting plate 12. The deformation direction of the elastic member 61 is the moving direction of the linkage block 62 to engage with the transmission mechanism 5 and the transmission member 4. In this embodiment, the powder bin box 2 is installed above the toner bin 1 from front to back. Since the spiral rod 32 extends along the length direction of the powder bin box 2, that is, the spiral rod 32 extends in the left and right directions, the groove 41 on the transmission member opens toward the mounting plate 12. In this embodiment, the linkage assembly 6 is provided at the left side of the powder bin box 2, and the transmission mechanism 5 is provided near the rear of the powder bin box 2, so that the deformation direction of the elastic member 61 is an inclined direction backward and to the right. The powder bin box 2 is provided with a driving block 22 that pushes the linkage block 62 to move in one direction of the transmission mechanism 5 and the transmission member 4. In this embodiment, the driving block 22 on the powder bin box 2 can push the linkage block 62 to move in the direction of the transmission mechanism 5, that is, push the linkage block 62 to move backward.

[0038] A guide groove 121 is provided on the inner surface of the mounting plate 12 in accordance with the deformation direction of the elastic member 61, and the linkage block 62 is placed in the guide groove 121 and has a contact portion 621 exposed outside the guide groove 121 for being pushed by the driving block 22. The guide groove 121 in this embodiment is sawtooth-shaped, and the corresponding linkage block 62 also has a sawtooth portion that can be placed in the sawtooth-shaped guide groove 121, so that the driving block 22 pushes the linkage block 62 to move backward, and the linkage block 62 moves rightward under the action of the guide groove 121.

[0039] The transmission mechanism 5 in this embodiment is a transmission gear set, and the meshing member 63 is a linkage gear, which can mesh with the output gear in the transmission gear set, and the linkage gear extends toward the transmission member 4 to have a connecting portion 631 that can be matched and placed in the groove 41, and the connecting portion 631 can be limited in the groove 41. Specifically, a first convex tooth 42 is provided on the inner peripheral wall of the groove 41 of the transmission member 4, and a second convex tooth 632 that can mesh with the first convex tooth 42 is provided on the outer peripheral wall of the connecting portion 631. In this way, the meshing connection between the transmission member 4 and the meshing member 63 can be achieved through the meshing of the first convex tooth 42 and the second convex tooth 632.

[0040] During assembly, when the powder bin box 2 is just placed on the toner bin 1, the driving block 22 on the powder bin box 2 abuts against the front side wall of the linkage block 62, and the meshing member 63 connected to the linkage block 62 is aligned with the opening of the groove 41 on the transmission member 4. As the powder bin box 2 is pushed backward, the linkage block 62 also moves backward. Based on the guidance of the guide groove 121, the linkage block 62 moves rightward while moving backward, so that the connecting portion 631 on the meshing member 63 gradually penetrates into the groove 41 of the transmission member 4. When the powder bin box 2 is assembled in place on the toner bin 1, the connecting portion 631 on the meshing member 63 is completely placed in the groove 41 and meshes with the transmission member 4. At the same time, the teeth on the meshing member 63 mesh with the output gear in the transmission gear set, so that the transmission mechanism 5 and the conveying mechanism 3 in the powder bin box 2 are connected. When the powder bin box 2 is removed from the toner bin 1, the driving block 22 on the powder bin box 2 gradually releases the backward thrust on the linkage block 62, and the engaging member 63 is gradually separated from the output gear in the transmission gear group. At the same time, the linkage block 62 is also reset to the guide groove 121 in the direction away from the powder bin box 2 under the action of the elastic member 61, and the connecting portion 631 in the corresponding engaging member 63 gradually disengages from the groove 41 of the transmission member 4, thereby realizing the work of removing the powder bin box 2 from the toner bin 1.

[0041] The powder bin box 2 in this embodiment can be assembled to the toner bin 1 of the toner cartridge body 100 outside the casing and then installed in the casing together with the toner cartridge body 100. Alternatively, the toner cartridge body 100 can be installed in the casing first and then the powder bin box 2 can be docked on the toner bin 1 to achieve the installation of the powder bin box 2 in the casing.

[0042] The assembly structure of the split-type toner cartridge in the present invention firstly provides an additional powder bin box 2 independently of the toner bin 1. When in use, it is only necessary to add toner into the powder bin box 2. The powder bin box 2 can be connected to the powder inlet 11 on the toner bin 1 through the powder outlet 21, thereby realizing the supplementary addition of toner into the toner bin 1. Since the powder bin box 2 is detachably connected to the toner bin 1, and the powder bin box 2 is not associated with other components in the toner cartridge body 100, the toner addition in the powder bin box 2 will not affect the toner supply and use of the toner bin 1 during the printing process. This makes it convenient for users to remove the powder bin box 2 from the toner bin 1 and add supplementary toner to the powder bin box 2 by themselves, and the requirements for users to supplement toner are low. On the other hand, even if the powder bin box 2 is directly replaced, the cost is low.

[0043] On this basis, during the assembly process, the powder bin box 2 can drive the linkage assembly 6 to engage with the transmission member 4 and the transmission mechanism 5, so as to realize the transmission connection between the conveying mechanism 3 in the powder bin box 2 and the moving parts in the toner cartridge body 100, so that the powder bin box 2 can transfer toner into the toner bin 1 during the operation of the toner cartridge body 100, which is simple to operate and convenient to work.

[0044] In the specification and claims of the present invention, terms indicating directions, such as "front", "rear", "up", "down", "left", "right", "side", "top", "bottom", etc., are used to describe various exemplary structural parts and elements of the present invention, but these terms are used here only for the purpose of convenience of description and are determined based on the exemplary orientations shown in the accompanying drawings. Since the embodiments disclosed in the present invention can be arranged in different directions, these terms indicating directions are only used as explanations and should not be regarded as limitations. For example, "up" and "down" are not necessarily limited to directions opposite to or consistent with the direction of gravity.

Claims

1. An assembly structure of a split toner cartridge, characterized in that: The toner cartridge comprises a main body (100) having a toner bin (1) and a powder bin box (2) detachably connected to the toner bin (1), wherein a powder inlet (11) is provided on a mating surface of the toner bin (1), and a powder outlet (21) opposite to the powder inlet (11) is provided on a mating surface of the powder bin box (2); The powder bin box (2) is provided with a conveying mechanism (3) for conveying toner to the powder outlet (21); the end of the powder bin box (2) is provided with a transmission member (4) connected to the conveying mechanism (3); the toner cartridge body (100) is provided with a transmission mechanism (5) which is transmission-connected to the action member in the toner cartridge body (100); and the toner bin (1) is elastically connected with a linkage assembly (6) which can mesh with the transmission member (4) and the transmission mechanism (5) when the powder bin box (2) is assembled. The linkage assembly (6) comprises an elastic member (61), a linkage block (62) and an engagement member (63); the engagement member (63) is movably arranged on the linkage block (62); the elastic member (61) is arranged on the toner bin (1) and one end of the elastic member (61) is connected to the linkage block (62); the deformation direction of the elastic member (61) is the movement direction of the linkage block (62) towards engagement with the transmission mechanism (5) and the transmission member (4); and the toner bin box (2) is provided with a driving block (22) for pushing the linkage block (62) to move towards one of the transmission mechanism (5) and the transmission member (4); At least one end of the toner bin (1) is provided with a mounting plate (12), the mounting plate (12) extends to the location where the toner bin box (2) is provided, and the linkage block (62) is connected to the mounting plate (12) via an elastic member (61); A guide groove (121) is provided on the inner surface of the mounting plate (12) and is consistent with the deformation direction of the elastic member (61); the linkage block (62) is disposed in the guide groove (121) and has a contact portion (621) exposed outside the guide groove (121) for being pushed by the driving block (22).

2. The assembly structure of the split toner cartridge according to claim 1, characterized in that: The transmission member (4) is rotatably connected to the end of the powder bin box (2), and the transmission member (4) has a groove (41) opening outwards; The transmission mechanism (5) is a transmission gear set, the meshing member (63) is a linkage gear, the linkage gear can mesh with an output gear in the transmission gear set, and the linkage gear extends in the direction of the transmission member (4) to have a connecting portion (631) that can be matched and placed in the groove (41), and the connecting portion (631) can be limited in the groove (41).

3. The assembly structure of the split toner cartridge according to claim 2, characterized in that: A first convex tooth (42) is arranged on the peripheral wall of the groove (41), and a second convex tooth (632) capable of meshing with the first convex tooth (42) is arranged on the outer peripheral wall of the connecting portion (631).

4. The assembly structure of the split toner cartridge according to claim 1, characterized in that: The conveying mechanism (3) comprises a lever (31) and a screw rod (32) extending along the length direction of the powder bin box (2) and arranged in parallel, the lever (31) and the screw rod (32) being transmission-connected, and the transmission member (4) being connected to the screw rod (32).

5. The assembly structure of the split toner cartridge according to claim 4, characterized in that: A first toner groove (23) is arranged in the powder bin box (2) corresponding to the lever (31), and a second toner groove (24) is arranged in the powder bin box (2) corresponding to the spiral rod (32).

6. The assembly structure of the split toner cartridge according to claim 1, characterized in that: The powder inlet (11) is provided with a powder inlet cover (7) which can be opened and closed, and the powder outlet (21) is provided with a powder outlet cover (8) which can be opened and closed.

7. The assembly structure of the split toner cartridge according to claim 1, characterized in that: A guide groove (25) and a guide member (15) that can be placed in the guide groove (25) are matched and provided on the mating surfaces of the powder bin box (2) and the toner bin (1), and the guide groove (25) extends along the assembly direction of the powder bin box (2).

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