Developing box and processing box

Abstract

The utility model relates to a developing box and a processing box which are detachably arranged in an electrophotographic imaging device, the developing box comprises a developing shell, a developing cavity and a processing box, the developing shell is divided into a developing agent cavity and a developing cavity by a partition plate arranged in the developing shell, and the developing agent cavity is used for accommodating a developing agent; the partition plate is provided with a communicating hole, an upper surface facing the developer cavity and a lower surface facing the developing cavity, the communicating hole penetrates through the upper surface and the lower surface, and the developer in the developer cavity enters the developing cavity through the communicating hole; the developing roller is rotatably arranged in the developing cavity and is used for bearing a developing agent; the rotating part is rotatably arranged in the developing agent cavity; the sealing assembly is located above the upper surface and connected with the rotating part, along with rotation of the rotating part, the sealing assembly is converted into a sealing releasing state from a sealing state, in the sealing state, the sealing assembly seals the communicating hole, in the sealing releasing state, the sealing assembly does not seal the communicating hole, and therefore the sealing assembly can seal the communicating hole. The action of releasing the sealing of the sealing assembly does not need to be performed by an end user.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of electrophotographic imaging, and particularly relates to a developing box and a process cartridge which can be detachably installed in an electrophotographic imaging device. BACKGROUND

[0002] The developing box is a container which can be detachably installed in an imaging device, and comprises a developing housing and a developing roller rotatably arranged in the developing housing. A developer for developing is contained in the developing housing, and the developing roller is used to carry the developer and supply the developer to a photosensitive drum arranged opposite to the developing roller, so that an electrostatic latent image formed on the photosensitive drum is developed.

[0003] Further, the developing box is also provided with a sealing member. Before the developing box is started to be used by a user, the developer is sealed by the sealing member and cannot leak. Before the developing box is installed in the imaging device, the user needs to manually open the sealing member. Otherwise, even if the developing box is correctly installed in the imaging device, since the developer cannot be carried by the developing roller, imaging cannot be performed. SUMMARY

[0004] Therefore, the utility model provides a developing box adopting the following technical scheme and a process cartridge with the developing box to solve the above technical problems, specifically as follows:

[0005] The developing box can be detachably installed in an imaging device, and comprises: a developing housing, a partition plate arranged therein and separating the developing housing into a developer cavity and a developing cavity, the developer cavity being used to contain a developer, the partition plate having a through hole and an upper surface facing the developer cavity and a lower surface facing the developing cavity, the through hole penetrating the upper surface and the lower surface, and the developer in the developer cavity entering the developing cavity through the through hole; a developing roller rotatably arranged in the developing cavity and used to carry the developer; a rotating member rotatably arranged in the developer cavity; and a sealing assembly located above the upper surface and connected with the rotating member, the sealing assembly being switched from a sealing state to a non-sealing state with the rotation of the rotating member, in the sealing state, the sealing assembly seals the through hole, and in the non-sealing state, the sealing assembly does not seal the through hole.

[0006] In some embodiments, the sealing assembly comprises a sealing member and a carrier, the carrier being used to carry the sealing member, the sealing member being arranged on the carrier in a removable manner, the sealing member comprising a connecting portion and a sealing portion connected with each other, the sealing portion being used to seal the through hole, and the connecting portion being used to connect with the rotating member; the carrier comprising a plurality of side plates and an opening located between the plurality of side plates, the sealing portion being mounted on the plurality of side plates, the opening being opposite to the through hole; and at least the sealing member being located above the upper surface of the partition plate.

[0007] In some embodiments, the seal is mounted in a welded manner, and welding lines for welding the seal are arranged on the carrier or the seal; the welding lines include a plurality of welding lines each arranged around the opening, and a protection space for accommodating the developer is formed between two adjacent welding lines.

[0008] In some embodiments, along the rotating direction of the rotating member, the welding lines upstream of the opening and the welding lines downstream of the opening each include a welding line body and a protruding portion protruding from the welding line body; in the welding lines upstream of the opening, the protruding portion protrudes from the welding line body towards the opening; in the welding lines downstream of the opening, the protruding portion protrudes from the welding line body away from the opening.

[0009] In some embodiments, in the welding lines upstream of the opening, the protruding portion arranged in the welding line closest to the opening has at least one corner, and in the welding lines downstream of the opening, the protruding portion arranged in the welding line farthest from the opening has at least one corner, and the corner tip of the corner is in the same direction as the rotating direction.

[0010] In some embodiments, in the welding lines downstream of the opening, at least one of the left and right ends of the welding line farthest from the opening is provided with a protruding portion.

[0011] In some embodiments, along the rotating direction of the rotating member, at least any two of the protruding portions are oppositely arranged.

[0012] In some embodiments, the rotating member includes a shaft body and a reinforcing portion connected to the shaft body, and the reinforcing portion is used to enhance the strength of the seal.

[0013] In some embodiments, the reinforcing portion is arranged as at least one protrusion protruding from the shaft body.

[0014] The utility model also provides a processing box, the processing box includes drum box and the developing box as described above, the developing box and drum box are movably connected. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is the perspective view of the processing box related to the utility model.

[0016] Figure 2 is the sectional view after cutting along the AA direction in the figure. Figure 1

[0017] Figure 3 is the exploded view of the sealing assembly and the developing housing after being separated.

[0018] Figure 4 is the plan view of the carrier in the sealing assembly related to the utility model.

[0019] Figure 5 ​is a partial exploded view of the driving end of the process cartridge.

[0020] Figure 6 is a perspective view of the driven member in the process cartridge.

[0021] Figure 7 is a perspective view of the conversion assembly from the front upper side after the conversion assembly is installed to the process cartridge.

[0022] Figure 8A is a state diagram of the driving member and the driven member in the conversion assembly in a state that the driving member and the driven member cannot transmit driving force.

[0023] Figure 8B is a state diagram of the driving member and the driven member in the conversion assembly in a state that the driving member and the driven member can transmit driving force. DETAILED DESCRIPTION

[0024] Embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0025]

Basic structure of the process cartridge

[0026] Figure 1 is a perspective view of the process cartridge; Figure 2 is a sectional view along the AA direction in Figure 1 the process cartridge.

[0027] As shown in Figure 1 , the process cartridge 100 includes a developing cartridge 10 and a drum cartridge 20 movably connected to each other, the developing cartridge 10 includes a developing housing 11 and a developing roller 12 rotatably arranged in the developing housing 11, and the drum cartridge 20 includes a drum housing 21 and a photosensitive drum 22 rotatably arranged in the drum housing 21, the developing roller 12 is arranged opposite to the photosensitive drum 22, the developing roller 12 has a rotation axis L1 and is used to carry a developer T (as shown in Figure 2 ) accommodated in the developing housing 11, when the process cartridge 100 performs imaging, the photosensitive drum 22 forms an electrostatic latent image on the surface, and the developing roller 12 is used to supply the developer T to the photosensitive drum 22 so that the electrostatic latent image is developed.

[0028] Further, the process cartridge 100 further includes a driving force receiving assembly used to receive driving force from the image forming device, the driving force receiving assembly is used to directly or indirectly drive the developing roller 12 and the photosensitive drum 22 to rotate.

[0029] In some embodiments, the driving force receiving assembly includes a first driving force receiving member 31 and a second driving force receiving member 32, wherein the first driving force receiving member 31 is used to receive driving force from the image forming device to directly or indirectly drive the developing roller 12 to rotate, and the second driving force receiving member 32 is used to receive driving force from the image forming device to directly or indirectly drive the photosensitive drum 22 to rotate.

[0030] In some embodiments, the first driving force receiving member 31 and the second driving force receiving member 32 can also be provided only one of them, and the driving force is received from the image forming device through the first driving force receiving member 31 or the second driving force receiving member 32 to directly or indirectly drive the rotation of the developing roller 12 and the photosensitive drum 22.

[0031] Further, the process cartridge 100 further comprises a first end cover 300 and a second end cover 400 respectively located at two ends of the process cartridge 100, the developing cartridge 10 and the drum cartridge 20 are connected through the first end cover 300 and the second end cover 400, and the driving force receiving assembly is exposed outwardly through the first end cover 300.

[0032] In some embodiments, at least one of the first end cover 300 and the second end cover 400 is integrally formed with the drum housing 21, and at this time, at least one of the first end cover 300 and the second end cover 400 will be considered as a part of the drum cartridge 20.

[0033] As shown in the figure, Figure 2 The process cartridge 100 further comprises an elastic member 23 provided between the developing housing 11 and the drum housing 21, and the elastic member 23 is used to force the developing roller 12 and the photosensitive drum 22 to maintain contact.

[0034] In some embodiments, the process cartridge 100 further comprises a powder feeding roller 13 rotatably provided in the developing housing 11, the powder feeding roller 13 is in contact with the developing roller 12, and the powder feeding roller 13 supplies the developer T to the developing roller 12 during the imaging process of the process cartridge 100.

[0035] For the convenience of the following description, the direction parallel to the rotation axis L1 is defined as the left-right direction, the direction intersecting with the left-right direction is defined as the front-rear direction, and the direction intersecting with the left-right direction and the front-rear direction is defined as the up-down direction, preferably, the left-right direction, the front-rear direction and the up-down direction are orthogonal, specifically, along the left-right direction, the side where the driving force receiving assembly is located is the driving side / left side, and the side opposite to the driving side / left side is the non-driving side / right side, the developing cartridge 10 and the drum cartridge 20 are arranged along the front-rear direction, wherein the drum cartridge 20 is located in front of the developing cartridge 10, or in other words, the photosensitive drum 22 is located in front of the developing roller 12, along the up-down direction, the side where the photosensitive drum 22 and the developing roller 12 are provided is the lower side, and the side where the photosensitive drum 22 and the developing roller 12 are not provided is the upper side, when the process cartridge 100 is installed to the image forming device, the side where the photosensitive drum 22 and the developing roller 12 are provided is in the lower side.

[0036]

Stirring assembly and sealing assembly

[0037] As shown in the figure, Figure 2As shown, the developing housing 11 is enclosed to form an accommodating cavity 14, and the developing cartridge 10 further comprises a partition plate 15 arranged in the developing housing 11, the partition plate 15 has a communication hole (developer supply port) 151, and the partition plate 15 divides the accommodating cavity 14 into a developer cavity 14a and a developing cavity 14b, the communication hole 151 communicates the developer cavity 14a and the developing cavity 14b, the developer cavity 14a is used for storing the developer T, and the developing roller 12 is rotatably arranged in the developing cavity 14b, the partition plate 15 has opposite upper and lower surfaces 15a and 15b, the upper surface 15a faces the developer cavity 14a, the lower surface 15b faces the developing cavity 14b, and the communication hole 151 penetrates the upper and lower surfaces 15a and 15b, and the developer T in the developer cavity 14a can enter the developing cavity 14b through the communication hole 151.

[0038] In some embodiments, the developing cartridge 10 further comprises a powder feeding roller 13 rotatably arranged in the developing cavity 14b, the powder feeding roller 13 is in contact with the developing roller 12, and the powder feeding roller 13 supplies the developer entering the developing cavity 14b to the developing roller 12; it should be understood that the powder feeding roller 13 can also not be necessarily arranged, and in this case, the developer T entering the developing cavity 14b can be directly carried by the developing roller 12.

[0039] Further, the developing cartridge 10 further comprises a rotating member 16 rotatably arranged in the developer cavity 14a and a sealing assembly 4 arranged above the upper surface 15a, specifically, the sealing assembly 4 is arranged on the upper surface 15 and connected with the rotating member 16, and the sealing assembly 4 is used for sealing the communication hole 151, preventing the developer T in the developer cavity 14a from entering the developing cavity 14b through the communication hole 151 before the process cartridge 100 reaches the end user, thereby causing the developer to leak or get wet, that is, before the end user starts to use the process cartridge 100, the communication hole 151 should be in a sealed state by the sealing assembly 4; the sealing assembly 4 is arranged to be changed from a sealed state to an unsealed state with the rotation of the rotating member 16.

[0040] The rotating member 16 is in a long strip shape as a whole and can rotate around an axis of rotation, and the rotating member 16 comprises a shaft body 161 and a connecting portion 162 arranged on the shaft body 161, the connecting portion 162 is used for connecting with the sealing assembly 4, so that a part of the sealing assembly 4 can move relative to the developing housing 11 with the rotation of the rotating member 16.

[0041] Figure 3 is an exploded view of the sealing assembly and the developing housing after being separated according to the present application; Figure 4 is a plan view of a bearing member in the sealing assembly according to the present application.

[0042] As Figure 3 andFigure 4 As shown, the sealing assembly 4 comprises a carrier 41 fixedly arranged on the partition plate 15 for carrying a sealing member 42, the sealing member 42 is arranged between the carrier 41 and the rotating member 16 for sealing the communication hole 151, that is, one end of the sealing member 42 is connected with the carrier 41 and the other end is connected with the rotating member 16, thus, the sealing member 42 can move relative to the developing housing 11 following the rotation of the rotating member 16, finally, the sealing member 42 changes from the sealing state to the unsealing state of the communication hole 151.

[0043] The sealing member 42 is arranged on the carrier 41 in a removable manner, for example, the sealing member 42 is adhered on the carrier 41, or the sealing member 42 is welded on the carrier 41, or the sealing member 42 is carried by the carrier 41 through magnetic attraction, hereinafter, the sealing member 42 is welded on the carrier 41 is taken as an example for description.

[0044] The sealing member 42 comprises a connecting portion 421 and a sealing portion 422 connected with each other, wherein the sealing portion 422 is arranged for sealing the communication hole 151, and the connecting portion 421 is provided with a combined portion 423, the sealing member 42 is connected with the rotating member 16 by combining the combined portion 162 and the combined portion 423 with each other, for example, one of the combined portion 162 and the combined portion 423 is arranged as a protrusion and the other is arranged as a groove or a through hole, the combined portion 162 and the combined portion 423 are combined by welding; in other realizable manners, the combined portion 162 and the combined portion 423 can also be combined by adhesion, clamping and the like.

[0045] As shown, Figure 2 When the rotating member 16 rotates along the rotating direction r, the connecting portion 421 is pulled by the rotating member 16 and gradually winds on the rotating member 16, in the state that the connecting portion 421 is pulled tight, as the rotating member 16 continues to rotate, the connecting portion 421 will pull the sealing portion 422, so that the sealing portion 422 changes from the sealing state to the unsealing state.

[0046] Generally, before the user starts to use the process cartridge 100, in order to prevent the sealing failure of the sealing portion 422, the sealing portion 422 is better to be welded on the carrier 41 more tightly, however, when the rotating member 16 rotates, the sealing portion 422 should be easily pulled, otherwise, the sealing member 42 can be pulled off, the driving component for driving the rotating member 16 to rotate, even the driving force receiving assembly and the driving force output member in the image forming device for outputting the driving force can also be damaged, for this reason, the present utility model adopts the following technical scheme, so that the sealing portion 422 has good sealing effect and can be easily pulled by the rotating member 16.

[0047] AsFigure 4 As shown, the carrier 41 includes a plurality of side plates and openings 410 between the plurality of side plates, the sealing portion 422 is mounted on the plurality of side plates, the plurality of side plates are opposite to and connected with the partition plate 15 when the carrier 41 is mounted, and the openings 410 are opposite to the communication holes 151. Similarly, the connection between the plurality of side plates and the partition plate 51 can be in various forms, such as bonding, welding, magnetic connection, etc., as long as the carrier 41 can be fixed to the partition plate 15. Through the openings 410 and the communication holes 151, the developer T can flow between the developer cavity 14a and the developing cavity 14b.

[0048] In some embodiments, the carrier 41 includes four side plates opposite to each other, specifically, a first side plate 41a and a third side plate 41c opposite to each other, and a second side plate 41b and a fourth side plate 41d opposite to each other, wherein the length of the first side plate 41a and the length of the third side plate 41c are both greater than the length of the second side plate 41b and the length of the fourth side plate 41d, preferably, the length of the first side plate 41a and the length of the third side plate 41c are equal, and the length of the second side plate 41b and the length of the fourth side plate 41d are equal, both ends of the first side plate 41a and both ends of the third side plate 41c are connected with the second side plate 41b and the fourth side plate 41d respectively, that is, the first side plate 41a, the second side plate 41b, the third side plate 41c and the fourth side plate 41d are connected in sequence and enclose the opening 410.

[0049] Further, each side plate of the carrier 41 is provided with a welding line, the welding line includes a first welding line 411 and a second welding line 412, the first welding line 411 and the second welding line 412 are both arranged around the opening 410, and the first welding line 411 and the second welding line 412 are arranged at intervals, the first welding line 411 is farther away from the opening 410 than the second welding line 412, and a protection space 416 is formed between the first welding line 411 and the second welding line 412. In this way, even if one of the first welding line 411 and the second welding line 412 is disconnected from the sealing portion 422 (disbonding or virtual welding), the other one of the first welding line 411 and the second welding line 412 can still be well connected with the sealing portion 422.

[0050] Since the second welding wire 412 is closer to the opening 410 than the first welding wire 411, the welding area formed by the second welding wire 412 can be smaller than that of the first welding wire 411, which makes it easier for the second welding wire 412 to be disconnected from the sealing portion 422; when a part of the second welding wire 412 is disconnected from the sealing portion 422, the second welding wire 412 will form a gap allowing the developer T to pass through, so that the developer T enters the protection space 416 and exerts a pressing force on the first welding wire 411; however, in the case where the second welding wire 412 is provided, the total amount of developer entering the protection space 416 is limited, and the pressing force on the first welding wire 411 from the developer T is smaller, thereby reducing the risk of the first welding wire 411 being disconnected from the sealing portion 422.

[0051] The first welding wire 411 includes a first outer welding wire 411a arranged on the first side plate 41a, a second outer welding wire 411b arranged on the second side plate 41b, a third outer welding wire 411c arranged on the third side plate 41c, and a fourth outer welding wire 411d arranged on the fourth side plate 41d, the first outer welding wire 411a and the third outer welding wire 411c are arranged opposite to each other, and the second outer welding wire 411b and the fourth outer welding wire 411d are arranged opposite to each other, both ends of the first outer welding wire 411a and both ends of the third outer welding wire 411c are connected to the second outer welding wire 411b and the fourth outer welding wire 411d, that is, the first outer welding wire 411a, the second outer welding wire 411b, the third outer welding wire 411c, and the fourth outer welding wire 411d are connected in sequence, and the opening 410 is located between the first outer welding wire 411a, the second outer welding wire 411b, the third outer welding wire 411c, and the fourth outer welding wire 411d.

[0052] In the rotation direction r of the rotating member 16, the first outer welding wire 411a is located downstream of the opening 410, and the third outer welding wire 411c is located upstream of the opening 410, and the sealing portion 422 will be disconnected from the first outer welding wire 411a first compared to the third outer welding wire 411c; the first outer welding wire 411a includes a first outer welding wire body 411a1 and at least one first protruding portion 411a2, which protrudes from the first outer welding wire body 411a1 in a direction away from the opening 410 in the rotation direction r; the third outer welding wire 411c includes a third outer welding wire body 411c1 and at least one second protruding portion 411c2, which protrudes from the second outer welding wire body 411c1 in a direction toward the opening 410 in the rotation direction r.

[0053] In some embodiments, the first outer welding line 411a further comprises at least one of a third protruding portion 411a3 located at the junction of the first outer welding line 411a and the second outer welding line 411b, and a fourth protruding portion 411a4 located at the junction of the first outer welding line 411a and the fourth outer welding line 411d, or in other words, the third protruding portion 411a3 and the fourth protruding portion 411a4 are respectively located at the left and right ends of the first outer welding line 411a, thus the third protruding portion 411a3 can also be regarded as a part of the second outer welding line 411b, and the fourth protruding portion 411a4 can also be regarded as a part of the fourth outer welding line 411d; along the rotation direction r, both the third protruding portion 411a3 and the fourth protruding portion 411a4 protrude in the direction away from the opening 410.

[0054] The second welding line 412 comprises a first inner welding line 412a arranged on the first side plate 41a, a second inner welding line 412b arranged on the second side plate 41b, a third inner welding line 412c arranged on the third side plate 41c, and a fourth inner welding line 412d arranged on the fourth side plate 41d, the first inner welding line 412a and the third inner welding line 412c are oppositely arranged, the second inner welding line 412b and the fourth inner welding line 412d are oppositely arranged, both ends of the first inner welding line 412a and both ends of the third inner welding line 412c are connected with the second inner welding line 412b and the fourth inner welding line 412d, that is, the first inner welding line 412a, the second inner welding line 412b, the third inner welding line 412c and the fourth inner welding line 412d are sequentially connected, and the opening 410 is located between the first inner welding line 412a, the second inner welding line 412b, the third inner welding line 412c and the fourth inner welding line 412d.

[0055] Along the rotation direction r of the rotating member 16, the first inner welding line 412a is located downstream of the opening 410, and the third inner welding line 412c is located upstream of the opening 410, compared with the third inner welding line 412c, the sealing portion 422 will first be disconnected with the first inner welding line 412a; the first inner welding line 412a comprises a first inner welding line main body 412a1 and at least one fifth protruding portion 412a2, along the rotation direction r, the fifth protruding portion 412a2 protrudes from the first inner welding line main body 412a1 in the direction away from the opening 410; the third inner welding line 412c comprises a third inner welding line main body 412c1 and at least one sixth protruding portion 412c2, along the rotation direction r, the second protruding portion 412c2 protrudes from the second inner welding line main body 412c1 in the direction of the opening 410.

[0056] In some embodiments, at least one of the third protrusion 411a3 and the fourth protrusion 411a4 is provided, and the first inner bonding wire 412a can also be provided with a protrusion similar to the at least one of the third protrusion 411a3 and the fourth protrusion 411a4, that is, at least one of the left and right ends of the first inner bonding wire 412a can also be provided with a protrusion protruding in a direction away from the opening 410, so that the sealing portion 422 and the second bonding wire 412 can be smoothly separated.

[0057] In order to make the sealing portion 422 and the carrier 41 more smoothly separated, the first protrusion 411a2, the second protrusion 411c2, the fifth protrusion 412a2 and the sixth protrusion 412c2 have the following deformation mode:

[0058] In some embodiments, the first protrusion 411a2, the second protrusion 411c2, the fifth protrusion 412a2 and the sixth protrusion 412c2 are each provided with a plurality of protrusions spaced apart in the left-right direction.

[0059] In some embodiments, in the rotation direction r, at least any two of the first protrusion 411a2, the second protrusion 411c2, the fifth protrusion 412a2 and the sixth protrusion 412c2 are oppositely arranged.

[0060] In some embodiments, at least one of the first protrusion 411a2, the second protrusion 411c2, the fifth protrusion 412a2 and the sixth protrusion 412c2 is generally triangular, and preferably one angle of the triangle is generally directed toward the rotation direction r, so that the sealing portion 422 can be first separated from the angle, then gradually expanded to the sealing portion 422 and the protrusion are separated, and finally the sealing portion 422 and the bonding wire can be easily separated.

[0061] In some embodiments, at least one of the first protrusion 411a2, the second protrusion 411c2, the fifth protrusion 412a2 and the sixth protrusion 412c2 is generally arc-shaped, and preferably the line connecting the vertex of the arc and the center of the arc is substantially parallel to the rotation direction r, so that the sealing portion 422 can be first separated from the vertex of the arc, then gradually expanded to the sealing portion 422 and the protrusion are separated, and finally the sealing portion 422 and the bonding wire can be easily separated.

[0062] In some embodiments, the shapes of the first protrusions 411a2, the second protrusions 411c2, the fifth protrusions 412a2 and the sixth protrusions 412c2 can be set as regular polygons such as rhombus, pentagon, hexagon, etc. in addition to being set as the above-mentioned generally triangular shape and generally circular arc shape, or can be set as irregular polygons, as long as the protrusions have at least one corner with the corner tip pointing in the same direction as the rotation direction r, so as to facilitate the disconnection of the sealing portion 422 from the carrier 41.

[0063] In summary, in the first and second welding wires 411 and 412, the first outer welding wire 411a is provided with at least one first protrusion 411a2, and the first inner welding wire 412a is provided with at least one fifth protrusion 412a2, so that the sealing portion 422 can be smoothly disconnected from the first welding wire 411 through the first protrusion 411a2, and the sealing portion 422 can be smoothly disconnected from the second welding wire 412 through the fifth protrusion 412a2. Preferably, a plurality of first protrusions 411a2 are arranged at intervals in the left-right direction, and a plurality of fifth protrusions 412a2 are also arranged at intervals in the left-right direction, so that the sealing portion 422 can be simultaneously disconnected from the carrier 41 / the first outer welding wire 411a / the first inner welding wire 412a at multiple positions in the left-right direction.

[0064] The third outer welding wire 411c is provided with at least one second protrusion 411c2, and the third inner welding wire 412c is provided with at least one sixth protrusion 412c2, so that the sealing portion 422 can be smoothly disconnected from the first welding wire 411 through the second protrusion 411c2, and the sealing portion 422 can be smoothly disconnected from the second welding wire 412 through the sixth protrusion 412c2. Preferably, a plurality of second protrusions 411c2 are arranged at intervals in the left-right direction, and a plurality of sixth protrusions 412c2 are also arranged at intervals in the left-right direction, so that the sealing portion 422 can be simultaneously disconnected from the carrier 41 / the third outer welding wire 411c / the third inner welding wire 412c at multiple positions in the left-right direction.

[0065] As described above, the third protrusion 411a3 and the fourth protrusion 411a4 are respectively arranged at the left and right ends of the first outer welding wire 411a, and correspondingly, at least one of the left and right ends of the first inner welding wire 412a, the left and right ends of the third inner welding wire 412c and the left and right ends of the third outer welding wire 411c can also be respectively provided with protrusions similar to the third protrusion 411a3 and the fourth protrusion 411a4.

[0066] As Figure 4As shown, along the rotating direction r, the protrusion (the sixth protrusion 412c2) arranged in the soldering wire closest to the opening 410 (the third inner soldering wire 412c) in the soldering wire located upstream of the opening 410 is preferably substantially triangular, and the protrusion (the first protrusion 411a2) arranged in the soldering wire farthest from the opening 410 (the first outer soldering wire 411a) in the soldering wire located downstream of the opening 410 is preferably substantially triangular, so as to facilitate the sealing part 422 to start to be disconnected from the soldering wire, and more preferably, one angle of the triangle is oriented in the same direction as the rotating direction r of the rotating member 16.

[0067] The following will be described in combination with Figure 2 and Figure 3 The stirring assembly will be further described.

[0068] Generally, the developer T in the developer cavity 14a needs to be continuously stirred to prevent the developer T from caking, and the stirred developer T is transported towards the communication hole 151, and for this purpose, the stirring blade is usually installed on the rotating member 16, so that the developer T is hit by the stirring blade and transported towards the communication hole 151 along with the rotation of the rotating member 16.

[0069] In the utility model, since the sealing member 42 can move relative to the developing housing 11 along with the rotation of the rotating member 16, finally, the sealing member 42 after being disconnected from the bearing member 42 will be wound on the rotating member 16, and the sealing member 42 wound on the rotating member 16 can be used as a stirring blade to realize the stirring of the developer T, therefore, the stirring assembly can be considered to comprise the rotating member 16 and the sealing member 42.

[0070] However, since the sealing member 42 needs to be combined with the bearing member 41 in a removable manner, the material of the sealing member 42 needs to be softer than the material of the conventional stirring blade, for example, the stirring blade is made of hard PET, and the sealing member 42 is made of soft PVE, in order to enable the sealing member 42 wound on the rotating member 16 to stir the developer T, the rotating member 16 further comprises a reinforcing part 163 connected with the shaft body 161, and the reinforcing part 163 is used to enhance the strength of the sealing member 42, so that it is not necessary to additionally provide a stirring blade harder than the sealing member 42 on the rotating member 16, which is beneficial to reduce the cost of the stirring assembly.

[0071] In some embodiments, the reinforcing part 163 is provided as a protrusion protruding from the shaft body 161, and a plurality of protrusions 163 are arranged at intervals along the left-right direction.

[0072] In some embodiments, the reinforcing part 163 can also be provided as a protrusion extending along the left-right direction.

[0073]

Conversion assembly

[0074] Figure 5 is an exploded view of part components of the drive end of the process cartridge; Figure 6 is a perspective view of a driven member in the process cartridge; Figure 7 is a perspective view from the front and top of the conversion assembly after it has been installed into the process cartridge; Figure 8A is a state diagram of the driving member and the driven member in the conversion assembly when they are unable to transmit driving force; Figure 8B is a state diagram of the driving member and the driven member in the conversion assembly when they are able to transmit driving force.

[0075] In the actual production process of the process cartridge 100, after the process cartridge 100 is assembled, the factory needs to test the process cartridge 100 on the machine, specifically, a small amount of developer is added to the developing chamber 14b or the developing roller 12, and then the process cartridge 100 is installed into the image forming device for printing test.

[0076] As described above, the rotating member 16 rotates by receiving driving force from the driving force receiving assembly, and one end of the sealing member 42 is connected with the rotating member 16, which enables the sealing member 42 to move relative to the developing housing 11 following the rotation of the rotating member 16. In the process of testing the process cartridge 100 on the machine, the rotating member 16 will be driven, and then the sealing member 42 will also be driven, finally, the sealing portion 422 is disconnected with the bearing member 41, and the sealing member 42 changes from the sealed state to the unsealed state, but at this time, the process cartridge 100 has not yet reached the end user, therefore, in order to prevent the sealing member 42 from changing from the sealed state to the unsealed state in the process of testing the process cartridge 100 on the machine, the process cartridge 100 is also provided with a conversion assembly 6, the conversion assembly 6 has a connected state and a cut-off state, in the connected state, the rotating member 16 can rotate by receiving driving force from the driving force receiving assembly through the conversion assembly 6, in the cut-off state, the rotating member 16 cannot receive driving force from the driving force receiving assembly and remains stationary, wherein the conversion assembly 6 is arranged to be able to at least convert from the connected state to the cut-off state, preferably, the conversion assembly 6 can convert between the connected state and the cut-off state, so that even if the conversion assembly 6 is assembled in the connected state during the assembly process of the process cartridge 100, the conversion assembly 6 can also be converted to the connected state without disassembling the process cartridge 100.

[0077] It should be understood that no matter what state the conversion assembly 6 is in, the driving force of the driving force receiving assembly or the first driving force receiving member 31 can always be transmitted to the developing roller 12 through the driving force transmission assembly.

[0078] As Figure 5As shown, the processing cartridge 100 further comprises a driving force transmission assembly 5 for transmitting the driving force of the driving force receiving assembly or the first driving force receiving member 31 (hereinafter described as "the first driving force receiving member 31") outwards, which at least comprises a first transmission member 51, a developing driving member 54 and an agitation driving member 55, wherein the first transmission member 51 is used for receiving the driving force of the first driving force receiving member 31, the developing driving member 54 is arranged at the end of the developing roller 12, and the agitation driving member 55 is arranged at the end of the rotating member 16.

[0079] In some embodiments, the developing driving member 54 receives the driving force from the first transmission member 51, and in turn, the developing driving member 54 drives the developing roller 12 to rotate, while the first transmission member 51 is also combined with the conversion assembly 6, and the agitation driving member 55 is also combined with the conversion assembly 6, and in turn, the conversion assembly 6 can control whether the driving force of the first transmission member 51 is transmitted to the agitation driving member 55.

[0080] In some embodiments, the processing cartridge 100 further comprises a powder feeding driving member 56, which can also receive the driving force from the first transmission member 51, and in turn, the powder feeding driving member 56 drives the powder feeding member 13 to rotate.

[0081] In some embodiments, the driving force transmission assembly 5 can further comprise more transmission members, so that the developing driving member 54, the powder feeding driving member 56 and the agitation driving member 55 correspond to one transmission member respectively, such as Figure 5 As shown, the first transmission member 51, the second transmission member 52 and the third transmission member 53 are coaxially arranged, and preferably, the three transmission members are coaxially arranged with the first driving force receiving member 31 and formed integrally, the first transmission member 51 is used for being combined with the developing driving member 54, the second transmission member 52 is used for being combined with the powder feeding driving member 56, the third transmission member 53 is used for being combined with the conversion assembly 6, and the agitation driving member 55 is still combined with the conversion assembly 6.

[0082] It should be understood that the first transmission member 51, the second transmission member 52 and the third transmission member 53 can also be arranged non-coaxially, or in other words, the first transmission member 51, the second transmission member 52 and the third transmission member 53 are formed separately, as long as the first transmission member 51, the second transmission member 52 and the third transmission member 53 can receive the driving force of the first driving force receiving member 31 and transmit the driving force to the corresponding components respectively.

[0083] In some embodiments, the processing cartridge 100 further comprises a cover 17 and a bracket 18 fixedly arranged relative to the developing housing 11, the cover 17, the bracket 18 and the developing housing 11 are arranged in sequence along the left-right direction, wherein the bracket 18 is fixedly connected with the developing housing 11, either the bracket 18 or the developing housing 11 is fixedly connected with the cover 17, the first driving force receiving member 31 is exposed through the cover 17 and is supported by the bracket 18, the developing driving member 54, the stirring driving member 55 and the powder feeding driving member 56 are arranged between the bracket 18 and the developing housing 11; at least one of the cover 17 and the bracket 18 is deformable, and can be omitted.

[0084] The conversion assembly 6 comprises a driving member 61, a driven member 62, an intermediate member 63 and a pushing member 64, the driving member 61 is used for receiving the driving force of the first driving force receiving member 31, specifically, the driving member 61 can be combined with any one of the first driving force receiving member 31, the first transmission member 51, the second transmission member 52 and the third transmission member 53, as long as the driving force from the first driving force receiving member 31 can be received; the driven member 62 is used for transmitting the driving force to the rotating member 16, specifically, the driven member 62 is combined with the stirring driving member 55, the intermediate member 63 is arranged to be movable between a first position and a second position, when the intermediate member 63 is located at the first position, the conversion assembly 6 is in a cut-off state, and the sealing assembly 4 is in a sealed state, when the intermediate member 63 is located at the second position, the conversion assembly 6 is in a connected state, and the sealing assembly 4 is changed from the sealed state to the unsealed state; the pushing member 64 is used for applying a pushing force to the intermediate member 63, so that the intermediate member 63 is at least maintained at the second position.

[0085] Specifically, the driving member 61 comprises a gear body 614, a through hole 612 and a first transmission part 613, the through hole 612 is arranged through the gear body 614 along the rotation axis of the gear body 614, to allow a part of the driven member 62 to pass through, the first transmission part 613 is used for being combined with the intermediate member 63, to transmit the driving force to the intermediate member 63, for example, the first transmission part 613 is a groove or a protrusion arranged on the gear body 614, Figure 5 An example in which the first transmission part 613 is arranged as a groove is given, preferably, the groove 613 is in communication with the through hole 612, to facilitate the transmission of the driving force between the first transmission part 613 and the intermediate member 63.

[0086] The intermediate member 63 comprises an intermediate body 631 and an intermediate transmission part 632 connected with the intermediate body 631, the intermediate transmission part 632 is used for being combined with the first transmission part 613, to realize the transmission of the driving force between the gear body 614 and the intermediate member 63; preferably, the intermediate body 631 and the intermediate transmission part 632 are integrally formed, Figure 5Also given is an example in which the intermediate transmission portion 632 is arranged to protrude from the intermediate body 631, and when the first transmission portion 613 is arranged to protrude, the intermediate transmission portion 632 can be arranged to be either a groove cooperating with the protrusion or another protrusion cooperating with the protrusion.

[0087] As shown in Figure 6 The driven member 62 includes a driven body 621, a second transmission portion 622, and a driven transmission portion 626 connected with the driven body 621 for transmitting driving force to the rotating member 16, for example, the driven transmission portion 626 directly or indirectly combines with the stirring driving member 55 to transmit driving force to the stirring driving member 55, and the stirring driving member 55 drives the rotating member 16 to rotate, and the second transmission portion 622 is used to combine with the intermediate member 63 / intermediate transmission portion 632 to receive driving force from the first transmission portion 613 to drive the driven member 62 to rotate. Figure 6 An example is given in which the second transmission portion 622 is arranged to be a groove, and the driven transmission portion 626 is arranged to be a gear, and correspondingly, the stirring driving member 55 is also arranged to be a gear.

[0088] In an implementable manner, the second transmission portion 622 can also be arranged to be a protrusion, and it can be seen that the shape of the first transmission portion 613, the shape of the intermediate transmission portion 632, and the shape of the second transmission portion 622 can not necessarily be limited, as long as driving force can be transmitted through the first transmission portion 613, the intermediate transmission portion 632, and the second transmission portion 622.

[0089] Further, the driven member 62 further includes a first limiting portion 624, a second limiting portion 625, and a retaining portion 623 arranged along the circumferential direction of the driven body 621, the retaining portion 623 is located between the first limiting portion 624 and the second limiting portion 625, and the first limiting portion 624 and the second limiting portion 625 are used to retain the intermediate member 63 / intermediate transmission portion 632 in the retaining portion 623, and the second limiting portion 624 is arranged adjacent to the second transmission portion 622 along the circumferential direction of the driven body 621, so that when the intermediate transmission portion 632 is no longer limited by the second limiting portion 624, the intermediate transmission portion 632 can combine with the second transmission portion 622.

[0090] Specifically, as shown in Figure 6 The two protrusions 620 are formed radially from the driven body 621, and are arranged spaced apart along the circumferential direction of the driven body 621, and the second transmission portion 622 is located between the two protrusions 620, and each protrusion 620 is provided with the first limiting portion 624, the second limiting portion 625, and the retaining portion 623.

[0091] In some embodiments, the protrusion 620 may not be necessary, and the first limiting part 624, the second limiting part 625, the retaining part 623, and the second limiting part 622 may be directly provided on the driven body 621.

[0092] In some embodiments, the driven member 62 further includes a third limiting part (axial limiting part) 627 connected to the driven body 621. When the processing cartridge 100 / developing cartridge 10 is assembled, at least a portion of the driven body 621 passes through the through hole 612. Due to the limitation of the third limiting part 627, at least a portion of the driven transmission part 626 is located on one side of the gear body 614, and at least a portion of the intermediate member 63 is located on the other side of the gear body 614. Thus, the control of the intermediate member 63, the continuous rotation of the gear body 614, and the transmission of driving force from the intermediate driven transmission part 626 to the rotating member 16 can be independent of each other. Preferably, the driving member 61, the driven member 62, and the intermediate member 63 are coaxially arranged. Therefore, the overall structure of the conversion assembly 6 can be simplified, which is beneficial to improving the space utilization of the processing cartridge 100 and thus realizing the miniaturization of the processing cartridge 100.

[0093] like Figure 8A As shown, before the end user uses the processing cartridge 100, the intermediate part 63 is in the first position. Due to the abutment of the pusher 64 against the intermediate part 63, the intermediate transfer part 632 is held in the holding part 623 under the pushing action of the pusher 64. Along the radial direction of the intermediate part 63, the size of the intermediate transfer part 632 is larger than the maximum size of the protrusion 620. Even if the intermediate part 63 shakes slightly, the intermediate transfer part 632 can still be restricted in the holding part 623 by the first limiting part 624 and the second limiting part 625. At this time, neither the first transfer part 613 nor the second transfer part 622 is engaged with the intermediate transfer part 632. The gear body 614 receives the driving force from the first driving force receiving part 31 and rotates freely, but the driven transfer part 626 is not driven and remains stationary. Correspondingly, the stirring drive part 55 and the rotating part 16 remain stationary. Therefore, the factory can perform an on-machine test of the processing cartridge 100 by adding a small amount of developer T to the developing chamber 14b. The seal 42 will not change from a sealed state to an unsealed state.

[0094] In some implementations, when the intermediate member 63 is in the first position, the pushing member 64 may not need to apply a pushing force to the intermediate member 63, and the intermediate member 63 may be held in the first position by other components or by its own weight.

[0095] like Figure 8BAs shown, before the end user starts to use the processing cartridge 100, or after the on-machine test of the processing cartridge 100 is completed, only a push tool is needed to push the intermediate piece 63 to overcome the pushing force of the pushing piece 64, so that the intermediate transmission part 632 goes beyond the first limiting part 624, and under the gravity of the intermediate piece 63 itself and the pushing force of the pushing piece 64, the intermediate transmission part 632 is combined with the first transmission part 613 (for example, the intermediate transmission part 632 enters the first transmission part 613); as mentioned above, since the gear body 614 can receive the driving force from the first driving force receiving piece 31 to keep rotating, the stop position of the gear body 614 will be random, and accordingly, the position of the second transmission part 622 is also random, and in Figure 8B some embodiments, the second transmission part 622 and the first transmission part 613 are opposite in the radial direction of the gear body 614, and the intermediate transmission part 632 can be combined with the first transmission part 613 and the second transmission part 622 at the same time, and finally, with the rotation of the gear body 614, the driving force is transmitted to the driven piece 62 through the first transmission part 613, the intermediate transmission part 632 and the second transmission part 622 in turn, and then the driving force continues to be transmitted to the stirring driving piece 55 through the driven transmission part 626, and the rotating piece 16 is driven.

[0096] In some embodiments, when the intermediate transmission part 632 goes beyond the first limiting part 624, even if the second transmission part 622 and the first transmission part 613 are not opposite in the radial direction of the gear body 614, at this time, the intermediate transmission part 632 cannot be combined with the first transmission part 613 and the second transmission part 622 at the same time, but with the continuous rotation of the gear body 614, the first transmission part 613 will always reach a position opposite to the second transmission part 622 in the radial direction of the gear body 614 at a certain time, and since the intermediate piece 63 is pushed by the pushing piece 64, under the gravity of the intermediate piece 63 itself and the pushing force of the pushing piece 64, the intermediate transmission part 632 is combined with the first transmission part 613 and the second transmission part 622 at the same time, at this time, the intermediate piece 63 reaches the second position, and the driving force of the first driving force receiving piece 31 can be transmitted to the rotating piece 16 through the conversion assembly 6.

[0097] In some embodiments, the protective cover 17 and the bracket 18 also have an operation hole 170 therebetween, as Figure 7 shown, at least a part of the intermediate piece 63 is exposed through the swing operation hole 170, so that the end user can operate the intermediate piece 63 through the operation hole 170 to make the intermediate piece 63 deviate from the first position, or return to the first position from the second position; preferably, the first limiting part 624 is arranged as an inclined surface inclined with respect to the left-right direction, so as to facilitate the intermediate piece 63 to go beyond the first limiting part 624.

[0098]

Other Descriptions

[0099] Based on the inventive concept of the utility model, the utility model still has the following variations:

[0100] 1. The rotation axis of the rotating member 16 is preferably parallel to the left-right direction, however, in an implementable manner, the rotation axis of the rotating member 16 can also intersect the left-right direction, as long as the rotation of the rotating member 16 can make the sealing member 42 switch from the sealed state to the unsealed state, for example, the rotation axis of the rotating member 16 is inclined or perpendicular to the left-right direction, when the rotation axis of the rotating member 16 is perpendicular to the left-right direction, the direction conversion member can be arranged to force the sealing member 42 to switch from the sealed state to the unsealed state.

[0101] 2. The bearing member 41 can also not be arranged, that is, the bearing member 41 is formed integrally with the partition plate 15, at this time, the partition plate 15 can also be regarded as a bearing member, and the welding line will be formed on the partition plate 15.

[0102] 3. Whether the bearing member 41 is arranged or not, that is, whether the bearing member 41 is formed integrally with the partition plate 15 or not, the welding line can also be arranged on the sealing member 42.

[0103] 4. Since the sealing member 42 is installed in a manner other than the above-mentioned welding, it can also be achieved by the above-mentioned bonding, magnetic connection and the like, therefore, the sealing assembly 4 can be described as at least comprising the sealing member 42, the sealing member 42 is used for sealing the communication hole 151, and is arranged to be capable of switching from the sealed state to the contact sealing state.

[0104] 5. According to design requirements, the number of welding lines can also be more, for example, a third welding line, a fourth welding line, …, no matter how many welding lines are arranged, adjacent two welding lines always form a protection space capable of accommodating the developer, in general, along the rotation direction r, the protruding part arranged in the welding line upstream of the opening 410 always protrudes from the corresponding welding line body towards the opening 410, and the protruding part arranged in the welding line downstream of the opening 410 always protrudes from the corresponding welding line body away from the opening 410.

[0105] 6. The above describes an embodiment of arranging the conversion assembly 6 in the driving force transmission assembly 5, however, according to the inventive concept of the utility model, the conversion assembly 6 can also be arranged between the first driving force receiving member 31 and the driving force transmission assembly 5, or between the stirring driving member 55 and the rotating member 16, as long as the conversion assembly 6 can have the connected state and the cut-off state.

[0106] 7. The sealing assembly 4 and the stirring assembly described above are arranged in the developing cartridge 10, thus, the technical scheme of the present application can be used not only in the process cartridge 100 comprising the developing cartridge 10 and the drum cartridge 20 simultaneously, but also in the developing cartridge 10 arranged independently of the drum cartridge 20, and the developing cartridge 10 can be detachably mounted to the image forming device.

[0107] 8. When the process cartridge 100 / developing cartridge 10 does not need to be tested, the conversion assembly 6 can not be arranged.

[0108] 9. In some embodiments, in order to facilitate the mounting of the carrier 41, an auxiliary part can be arranged on the upper surface of the partition plate 15 in advance, and the carrier 41 is indirectly fixed on the upper surface of the partition plate 15.

[0109]

Advantages

[0110] According to the above description, the present application can produce the following effects:

[0111] 1. Compared with the space of the developing chamber 14b, the space of the developer chamber 14a is much larger, and the sealing part 42 is arranged on the side of the partition plate 15 facing the developer chamber 14a, which not only makes the sealing part 42 easier to install, but also makes the sealing part 42 not interfere with the developing roller 12 and / or the powder feeding roller 13 in the developing chamber 14b.

[0112] 2. One end of the sealing part 42 is connected with the partition plate 15 / carrier 41, and the other end is connected with the rotating part 16, so that the sealing part 42 can move relative to the developing housing 11 with the rotation of the rotating part 16, and finally, the sealing part 42 can be changed from the sealed state to the unsealed state, without the need for manual unsealing of the sealing part 42, thereby reducing the use operation steps of the end user, and improving the use experience of the end user, especially for the end user who uses the image forming device for the first time, the structure will make the image forming device not be unable to image because the process cartridge 100 does not remove the sealing part 42.

[0113] 3. As Figure 2As shown by the dotted line, during the movement of the seal 42 relative to the developing housing 11 with the rotation of the rotating member 16, the seal 42 is pulled upward by the rotating member 16, and the developing agent T added during the on-machine test of the process cartridge 100 will be pushed and gathered by the raised seal 42 / seal portion 422 toward the developing housing 11, however, due to the winding of the seal 42 on the rotating member 16, in the area where the developing agent T is gathered, the seal 42 / seal portion 422 will not be bent into a U shape, so that the gathered developing agent T is clamped in the U-shaped seal 42 / seal portion 422, and finally, the situation that the seal 42 / seal portion 422 cannot continue to move occurs.

[0114] Even if the gathered developing agent T is more, due to the fact that the left-right direction size of the process cartridge 100 is much larger than the front-rear direction size, in the case of the same volume of developing agent T, the developing agent T above the seal portion 422 of the present application will be more dispersed, and it is easier to hinder the movement of the seal 42 / seal portion 422.

[0115] 4. Since the seal 42 can be changed from the sealed state to the unsealed state with the rotation of the rotating member 16, and finally, the seal 42 is wound on the rotating member 16, therefore, the developing housing 11 can not have to additionally provide a hole for allowing the seal 42 to pass through, not only the structure of the developing housing 11 can be simplified, but also the problem of the developing agent T leakage caused by the setting of the hole can not be considered.

[0116] 5. In the prior art, the material hardness of the seal 42 is much lower than the hardness of the stirring blade, in the present application, by providing the reinforcing portion 163 in the rotating member 16, the seal 42 wound on the rotating member 16 is reinforced by abutting against the reinforcing portion 163, therefore, the seal 42 in the unsealed state can be used as a stirring blade, and the stirring blade can not be additionally provided on the rotating member 16, which is conducive to reducing the material cost and assembly cost of the developing cartridge 10 / process cartridge 100.

[0117] 6. Before the end user starts to use the process cartridge 100, in order to avoid that the seal 42 has been changed to the unsealed state, the conversion assembly 6 is further provided in the process cartridge 100 / developing cartridge 10, the conversion assembly 6 has the connected state and the disconnected state, before the end user starts to apply force to the process cartridge 100, the conversion assembly 6 is in the disconnected state, even if the process cartridge 100 is subjected to the on-machine test, the seal 42 can still remain in the sealed state.

Claims

1. A process cartridge detachably mountable to an image forming apparatus, characterized by comprising: The developing cartridge comprises: a developing housing, a partition provided in the developing housing separates the developing housing into a developer chamber and a developing chamber, the developer chamber is used for accommodating a developer, the partition has a communication hole and an upper surface facing the developer chamber and a lower surface facing the developing chamber, the communication hole penetrates the upper surface and the lower surface, the developer in the developer chamber enters the developing chamber through the communication hole; a developing roller rotatably provided in the developing chamber and used for carrying the developer; a rotating member rotatably provided in the developer chamber; a sealing assembly located above the upper surface and connected with the rotating member, the sealing assembly is switched from a sealing state to an unsealing state with the rotation of the rotating member, in the sealing state, the sealing assembly seals the communication hole, in the unsealing state, the sealing assembly does not seal the communication hole.

2. The process cartridge according to claim 1, wherein, The sealing assembly comprises a sealing member and a carrier, the carrier is used for carrying the sealing member, the sealing member is provided on the carrier in a removable manner, the sealing member comprises a connecting portion and a sealing portion connected with each other, the sealing portion is used for sealing the communication hole, and the connecting portion is used for connecting with the rotating member; the carrier comprises a plurality of side plates and an opening located between the plurality of side plates, the sealing portion is mounted on the plurality of side plates, and the opening is opposite to the communication hole; at least the sealing member is located above the upper surface of the partition.

3. The process cartridge of claim 2 wherein, The sealing member is mounted in a welding manner, a welding line used for welding the sealing member is provided on the carrier or the sealing member; the welding line comprises a plurality of welding lines each of which is provided around the opening, and a protection space used for accommodating the developer is formed between any two adjacent welding lines.

4. The process cartridge of claim 3 wherein, In the rotating direction of the rotating member, the welding line located upstream of the opening and the welding line located downstream of the opening each comprises a welding line body and a protruding portion protruding from the welding line body; in the welding line located upstream of the opening, the protruding portion protrudes from the welding line body towards the opening; in the welding line located downstream of the opening, the protruding portion protrudes from the welding line body away from the opening.

5. The process cartridge of claim 4 wherein, in the welding line located upstream of the opening, the protruding portion provided in the welding line closest to the opening has at least one corner, in the welding line located downstream of the opening, the protruding portion provided in the welding line farthest from the opening has at least one corner, and the corner tip of the corner is in the same direction as the rotating direction.

6. The process cartridge of claim 4 wherein, in the welding line located downstream of the opening, at least one of the left end and the right end of the welding line farthest from the opening is provided with the protruding portion.

7. The process cartridge of claim 4 wherein, In the rotating direction of the rotating member, at least any two of the protruding portions are oppositely arranged.

8. The process cartridge according to any one of claims 2 to 7, wherein The rotating member comprises a shaft body and a reinforcing portion connected with the shaft body, and the reinforcing portion is used for enhancing the strength of the sealing member.

9. The process cartridge of claim 8 wherein, The reinforcing portion is provided as at least one protrusion protruding from the shaft body.

10. A process cartridge, characterized by, The processing cartridge comprises a drum cartridge and the developing cartridge as claimed in any one of claims 1-9, and the developing cartridge is movably connected with the drum cartridge.

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