Developing box

Abstract

The utility model provides a developing box. The developing box comprises a box body, a developing roller, a stirring gear and a stirring part, the box body is used for accommodating developing agents. The developing roller is rotatably arranged in the box body; the developing roller has a first rotational axis extending in a left-right direction. The stirring gear is connected to the box body and used for receiving the driving force. The stirring piece is arranged in the box body. The stirring piece is used for stirring the developing agent in the box body. The stirring piece comprises a first end and a second end in the extending direction. The first end is in power connection with the stirring gear. The second end extends from the joint of the second end and the first end to the direction far away from the stirring gear. The stirring member has an extension contour line. The extension contour line is a connecting line of centers of all parts of the stirring part in the extension direction. The extension contour line intersects the first rotational axis. According to the developing box provided by the invention, the movement range of the stirring part can be increased, and the stirring effect of the stirring part on the developing agent is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electrophotographic imaging, and in particular to a developing cartridge. BACKGROUND

[0002] The developing cartridge is a replaceable accessory in an imaging device such as a printer, and is usually internally provided with an agitator to agitate the developer in the developing cartridge, prevent the developer from caking, and improve the stability of the developer supply to the developing roller.

[0003] In the related art, the agitator agitates the developer by rotating, and the rotation axis of the agitator is parallel to the rotation axis of the developing roller. The agitator cannot agitate the developer located in the corner of the cartridge body of the developing cartridge, and the agitating range of the agitator is small, and the agitating effect on the developer is poor. CONTENT OF THE UTILITY MODEL

[0004] Therefore, the embodiments of the present application aim to provide a developing cartridge to improve the situation that the agitating range of the agitator is small and the agitating effect on the developer in the developing cartridge is poor.

[0005] To achieve the above-mentioned purpose, the embodiments of the present application provide a developing cartridge, comprising:

[0006] a cartridge body for accommodating a developer;

[0007] a developing roller rotatably arranged in the cartridge body, the developing roller having a first rotation axis extending in a left-right direction;

[0008] an agitating gear connected to the cartridge body for receiving a driving force;

[0009] an agitator arranged in the cartridge body, the agitator being configured to agitate the developer in the cartridge body;

[0010] The agitator comprises a first end and a second end in an extending direction, the first end is in power connection with the agitating gear, and the second end extends away from the agitating gear from the connection with the first end. The agitator has an extending contour line, which is a connecting line of the centers of each part of the agitator in the extending direction, and the extending contour line intersects the first rotation axis.

[0011] In some embodiments, at least part of the agitator is formed as a flexible structure.

[0012] In some embodiments, at least one blade is connected to the agitator, and the blade is arranged on at least one side of the agitator in a front-rear direction, wherein the left-right direction intersects the front-rear direction.

[0013] Some embodiments have the first end fixedly connected with the stirring gear, and the second end is a free end.

[0014] Some embodiments have the second end capable of universal movement within the cartridge body.

[0015] Alternatively, the cartridge body is provided with a limiting structure, the limiting structure is provided with a limiting track, and the second end is arranged in the limiting track, so that the stirring member swings along a preset track.

[0016] Some embodiments have the extension contour line being a straight line, the extension contour line being a line connecting the center of the first end and the center of the second end, and the stirring member extends downward relative to the developing roller under its own gravity in the direction from the first end to the second end.

[0017] Alternatively, the extension contour line includes at least one curved segment.

[0018] Some embodiments have the developing cartridge including a transmission member, one end of the transmission member being in transmission connection with the stirring gear, and the other end being connected with the first end, and the first end being capable of generating at least displacement in the left-right direction relative to the transmission member.

[0019] Some embodiments have the stirring member including two oppositely arranged connecting portions, the two connecting portions being connected with the first end and the second end respectively, the first end and the second end being rotationally connected with the two connecting portions respectively, the transmission member including a transmission shaft and a cam portion, the transmission shaft being rotationally arranged in the first end and capable of driving the cam portion to rotate relative to the first end, the cam portion having a cam surface for abutting against the first end, so that the first end, the two connecting portions and the second end relatively rotate, and the stirring member generates at least displacement in the left-right direction.

[0020] Alternatively, one of the transmission member and the first end is provided with a spiral protrusion, and the other is provided with a matching groove, the spiral protrusion and the matching groove being matched, so that the stirring member generates at least displacement in the left-right direction.

[0021] Some embodiments have at least part of the stirring member formed as a flexible structure, the first end is fixedly connected with the stirring gear, and the second end is connected with the cartridge body.

[0022] Some embodiments have the stirring member capable of rotating under the driving of the stirring gear, and the stirring member has a second rotation axis extending in a first direction, the first direction intersecting with the left-right direction.

[0023] Some embodiments have the stirring member being a rigid member.

[0024] In some embodiments, the developing cartridge includes a transition member that connects the stirring gear to the first end;

[0025] The transition component includes a bevel gear, one end of which meshes with the stirring gear, and the other end of which is connected to the stirring component;

[0026] Alternatively, at least a portion of the transition element may be a flexible structure.

[0027] The developing cartridge of this application embodiment is connected to the cartridge body by a stirring gear. The stirring gear can rotate relative to the cartridge body, thereby transmitting the received driving force to the first end through its own rotation, thereby driving the stirring member to stir the developer in the cartridge body. At the same time, the stirring member has an extended contour line intersecting the first rotation axis. Thus, at least part of the extended contour line can be offset relative to the first rotation axis and the central axis of the stirring gear, thereby increasing the range of motion of the stirring member and improving the stirring effect of the stirring member on the developer. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the developing cartridge in this application;

[0029] Figure 2 This is an exploded view of the developing cartridge provided in the first embodiment of this application;

[0030] Figure 3 This is a schematic diagram of the structure of the stirring component according to the first embodiment of this application;

[0031] Figure 4 This is a schematic diagram of the structure of the stirring component and the box body according to the second embodiment of this application;

[0032] Figure 5 for Figure 4 Schematic diagram of the structure of the stirring component;

[0033] Figure 6 This is a schematic diagram of the structure of the stirring component and the box body according to the third embodiment of this application;

[0034] Figure 7 for Figure 6 Schematic diagram of the structure of the stirring component;

[0035] Figure 8 This is a schematic diagram of the structure of the stirring component and the box body according to the fourth embodiment of this application;

[0036] Figure 9 for Figure 8 Schematic diagram of the structure of the stirring component;

[0037] Figure 10 for Figure 8 A schematic diagram of the central transmission component driving the movement of the stirring component;

[0038] Figure 11 Fig. 4 is a schematic view of the driving member driving the stirring member to move to another state; Figure 10 Fig. 4 is a schematic view of the driving member driving the stirring member to move to another state;

[0039] Figure 12 Fig. 4 is a schematic view of the driving member driving the stirring member to move to another state;

[0040] Legend of reference signs

[0041] 10, developing cartridge; 11, cartridge body; 11a, limiting structure; 11b, limiting track; 12, developing roller; 13, stirring gear; 13a, gear shaft; 14, stirring member; 14a, stirring hole; 14b, notch; 141, first end; 142, second end; 143, blade; 144, connecting portion; 15, driving member; 151, driving shaft; 152, cam portion; 152a, cam surface; 16, transition member; 17, end cover; 18, power receiving member. DETAILED DESCRIPTION

[0042] The embodiments of the present application will be further described below in conjunction with the drawings and examples. The following examples are used to illustrate the present application, but cannot be used to limit the scope of the present application.

[0043] In the description of the embodiments of the present application, it should be noted that the terms "center", "upper", "lower", "front", "back", "left", "right", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only used to facilitate the description of the embodiments of the present application and simplify the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the embodiments of the present application. In addition, the terms "first", "second", "third" and the like are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0044] In the description of the embodiments of the present application, it should be noted that unless otherwise explicitly specified and limited, the term "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral connection; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above-mentioned terms in the embodiments of the present application can be understood according to the specific circumstances.

[0045] In the embodiments of the present application, unless specifically defined and limited otherwise, a first feature is "on", "under", "above", or "over" a second feature can mean that the first feature is in direct contact with the second feature, or the first feature is in indirect contact with the second feature through an intermediate medium. Moreover, the first feature "over", "above", and "on" the second feature can mean that the first feature is directly above or obliquely above the second feature, or only means that the first feature is horizontally higher than the second feature. The first feature "under" and "below" the second feature can mean that the first feature is directly below or obliquely below the second feature, or only means that the first feature is horizontally lower than the second feature.

[0046] In the description of the specification, the description of the terms "one embodiment", "some embodiments", "an example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the embodiments of the present application. In the specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in one or more embodiments or examples. In addition, the person skilled in the art can combine and combine the different embodiments or examples described in the specification and the features of the different embodiments or examples without contradiction.

[0047] The developing cartridge is a replaceable accessory in an image forming device such as a printer, and is usually internally provided with an agitator to agitate the developer in the developing cartridge, prevent the developer from caking, and improve the stability of the developer supply to the developing roller.

[0048] In the related art, the agitator agitates the developer by rotating, and the rotation axis of the agitator is parallel to the rotation axis of the developing roller. The agitator cannot agitate the developer located at the corner or dead angle of the cartridge body of the developing cartridge, the agitation range of the agitator is small, and the agitation effect on the developer is poor.

[0049] Based on the above situation, the present application provides a developing cartridge 10, please refer to Figures 1 to 12The developing cartridge 10 includes a cartridge body 11, a developing roller 12, a stirring gear 13, and a stirring member 14. The cartridge body 11 is configured to accommodate a developer. The developing roller 12 is rotatably disposed in the cartridge body 11. The developing roller 12 has a first rotation axis extending in a left-right direction. The stirring gear 13 is connected to the cartridge body 11 and configured to receive a driving force. The stirring member 14 is disposed in the cartridge body 11. The stirring member 14 is configured to stir the developer in the cartridge body 11. The stirring member 14 includes a first end 141 and a second end 142 extending in an extending direction. The first end 141 is power-connected to the stirring gear 13. The second end 142 extends from the connection with the first end 141 in a direction away from the stirring gear 13. The stirring member 14 has an extending contour line. The extending contour line is a line connecting centers of the stirring member 14 at different positions in the extending direction. The extending contour line intersects the first rotation axis.

[0050] It should be noted that the developing cartridge 10 in the present application can be applied to a process cartridge. The process cartridge can be applied to an image forming apparatus, such as a printer, a copier, a facsimile, etc.

[0051] The developing roller 12 is rotatably disposed in the cartridge body 11, and the developing roller 12 has a first rotation axis extending in a left-right direction, that is, the developing roller 12 can rotate in the cartridge body 11 about the first rotation axis relative to the cartridge body 11, so that the developing roller 12 can adsorb the developer in the cartridge body 11 and transfer the developer to a photosensitive unit, so as to develop an electrostatic latent image on a photosensitive drum of the photosensitive unit.

[0052] As shown in Figure 1 , Figure 2 , Figure 4 , Figure 8 , Figure 12 The first rotation axis is denoted by x.

[0053] Exemplarily, the axial direction of the developing roller 12 is parallel to the first rotation axis, that is, the axial direction of the developing roller 12 is parallel to the left-right direction.

[0054] It should be noted that the left-right direction can be the length direction of the developing cartridge 10.

[0055] It should be noted that the sizes of different components in three directions in the same absolute coordinate system are different. Generally, the length, the width and the thickness of an object are determined according to the sizes of the object in three directions, and the length>the width>the thickness.

[0056] The embodiments of the present application take the left-right direction as the length direction of the developing cartridge 10 as an example for description.

[0057] The stirring gear 13 is configured to receive a driving force, so as to transmit the driving force to the stirring member 14, so that the stirring member 14 can generate a motion.

[0058] Exemplarily, the developing cartridge 10 can include a power receiving member 18, which can receive a rotating driving force from the photosensitive unit or directly from the image forming device. The rotating driving force can be transmitted to the developing roller 12 and the stirring gear 13 through a transmission structure.

[0059] The developing cartridge 10 can further include an end cover 17, which is connected to the cartridge body 11, and the power receiving member 18 can be exposed through the end cover 17. The side where the power receiving member 18 is located (the left side) is the driving side of the developing cartridge 10, and the side (the right side) away from the power receiving member 18 is the non-driving side of the developing cartridge 10.

[0060] The stirring gear 13 is connected to the cartridge body 11, which means that the stirring gear 13 is rotationally connected to the cartridge body 11 and can rotate relative to the cartridge body 11, so as to transmit the received driving force to the first end 141 through its rotation, thereby driving the stirring member 14 to stir the developer in the cartridge body 11.

[0061] Here, the position of the stirring gear 13 on the cartridge body 11 is not limited. The stirring gear 13 can be arranged on the left side, the right side, the front side, or the back side of the cartridge body 11, or other positions of the cartridge body 11. The embodiments of the present application are described by way of example with the stirring gear 13 arranged on the left side of the cartridge body 11.

[0062] The stirring gear 13 can be arranged on the left side of the cartridge body 11, so that the stirring gear 13 is closer to the power receiving member 18, which is conducive to the stirring gear 13 directly receiving power from the power receiving member 18 and shortening the transmission distance.

[0063] The stirring member 14 includes a first end 141 and a second end 142 along an extension direction, wherein the first end 141 is arranged on the driving side, and the second end 142 is arranged on the non-driving side. Here, the extension direction of the stirring member 14 can be a straight line direction, or a curve, or a combination of straight line and curve, which is not limited herein.

[0064] The first end 141 is power-connected to the stirring gear 13. Here, the stirring gear 13 and the first end 141 can be directly connected or indirectly connected, which is not limited herein.

[0065] The stirring gear 13 can convert its rotation into other forms of movement to drive the first end 141.

[0066] The second end 142 extends away from the stirring gear 13 from the connection with the first end 141, that is, the second end 142 is farther away from the stirring gear 13 than the first end 141. In this way, the first end 141 and the second end 142 can cover a farther range in the cartridge body 11 to stir the developer.

[0067] The extension contour line is a line connecting the centers of the stirring member 14 at each position along the extension direction, that is, the extension contour line refers to the outer contour of the stirring member 14.

[0068] As shown in Figure 2 , Figure 3 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 The extension contour line is denoted by y.

[0069] The extension contour line can be one or a combination of a straight line, a broken line or a curve, which is not limited herein.

[0070] The extension contour line intersects the first rotation axis, which means that the extension contour line of the stirring member 14 is not parallel to the first rotation axis.

[0071] When the extension contour line is a straight line, the extension contour line is not parallel to the first rotation axis, so that the second end 142 can be offset relative to the central axis of the stirring gear 13, and the movement range of the stirring member 14 is increased at least at the second end 142, so that the stirring range of the stirring member 14 is increased. When the extension contour line is a curve, at least part of the extension contour line can be offset relative to the central axis of the stirring gear 13, so that the stirring range of the stirring member 14 is increased.

[0072] The developing cartridge 10 of the embodiment can be connected to the cartridge body 11 through the stirring gear 13, the stirring gear 13 can rotate relative to the cartridge body 11, so as to transmit the received driving force to the first end 141 through the rotation of the stirring gear 13, so as to drive the stirring member 14 to stir the developer in the cartridge body 11. At the same time, the stirring member 14 has an extension contour line intersecting the first rotation axis, so that at least part of the extension contour line can be offset relative to the first rotation axis and the central axis of the stirring gear 13, so as to increase the movement range of the stirring member 14, and further improve the stirring effect of the stirring member 14 on the developer.

[0073] In some embodiments, referring to Figures 4 to 5 , at least part of the stirring member 14 is formed as a flexible structure.

[0074] That is, part of the stirring member 14 can be formed as a flexible structure, or the entire stirring member 14 can be formed as a flexible structure, which is not limited herein.

[0075] The flexible structure refers to a structure that is soft and easy to deform. For example, a flexible shaft, a sheet or a rope. The factor that the flexible structure is easy to deform can be mainly due to the material itself, or mainly due to the structure, which is not limited herein.

[0076] Exemplarily, the flexible structure has elasticity and can generate elastic deformation.

[0077] In this embodiment, at least part of the stirring member 14 is formed as a flexible structure, so that when the stirring gear 13 drives the stirring member 14 through the first end 141, at least part of the stirring member 14 can be deformed in motion, increase the motion range, and agitate the developer in the corners or dead angles of the cartridge 11, thereby improving the stirring effect.

[0078] In some embodiments, at least one blade 143 is connected to the stirring member 14. The blade 143 is arranged on at least one side of the stirring member 14 in the front-rear direction, wherein the left-right direction intersects the front-rear direction.

[0079] It should be noted that the number of blades 143 is not limited and can be one or more.

[0080] In this application, plural means two or more.

[0081] In this embodiment, the blade 143 is connected to the stirring member 14, which can increase the stirring range of the stirring member 14 and improve the stirring effect of the developer in the corners of the cartridge 11.

[0082] Exemplarily, a plurality of blades 143 are arranged in sequence from the first end 141 to the second end 142 of the stirring member 14, and gaps 14b are formed between the blades 143. In this way, when the stirring member 14 stirs, the developer can pass through the gaps 14b between the two blades 143, which can reduce the resistance of the developer to the stirring member 14 and improve the flexibility of the stirring member 14.

[0083] In some embodiments, please refer to Figures 1 to 5 The first end 141 is fixedly connected to the stirring gear 13, and the second end 142 is a free end.

[0084] That is, during the motion, the position of the first end 141 of the stirring member 14 does not change relative to the stirring gear 13 and the developing shaft, and the second end 142 is a free end, and the position of the second end 142 changes relative to the stirring gear 13 and the developing shaft.

[0085] The fixed connection of the first end 141 to the stirring gear 13 means that the first end 141 is directly connected to the stirring gear 13, and the rotating force of the stirring gear 13 can be directly transmitted to the first end 141 and then transmitted to the second end 142 through the first end 141.

[0086] The connection mode of the first end 141 to the stirring gear 13 is not limited and can be clamping or the like, which is not limited herein.

[0087] In this embodiment, the second end 142 is a free end, which can enable the second end 142 to have a larger movement range in the box body 11. Compared with the case where the first end 141 and the second end 142 are both fixed relative to the developing axis, the stirring member 14 can stir a larger range through the second end 142, so as to stir the developer in the corner and improve the stirring effect.

[0088] In some embodiments, referring to Figures 4 to 5 , the second end 142 can move omnidirectionally in the box body 11. That is, the movement of the second end 142 in the box body 11 is not limited by the structure on the box body 11, the movement range of the second end 142 is larger, and the second end 142 can move freely in the box body 11.

[0089] For example, the stirring member 14 is in the form of a soft rope, the first end 141 of the soft rope is fixed, and the second end 142 is a free end. When the first end 141 is driven by the stirring gear 13, the second end 142 can be swung, so that the second end 142 moves in any direction in the box body 11, thereby achieving a larger movement range and realizing stirring of the developer.

[0090] In other embodiments, referring to Figure 5 and Figure 6 , the box body 11 is provided with a limiting structure 11a. The limiting structure 11a is provided with a limiting track 11b. The second end 142 is arranged in the limiting track 11b, so that the stirring member 14 swings along a preset track.

[0091] It should be noted that the limiting track 11b can be in the form of a closed figure such as a circle or a polygon. For example, the limiting track 11b is in the form of an ellipse.

[0092] The limiting structure 11a can be a protrusion or a groove formed on the inner wall of the box body 11, which is not limited herein.

[0093] The limiting structure 11a is provided with the limiting track 11b, that is, the limiting structure 11a defines the limiting track 11b.

[0094] In this way, by arranging the limiting structure 11a in the box body 11 and arranging the limiting track 11b in the limiting structure 11a, and arranging the second end 142 in the limiting track 11b, the first end 141 of the stirring member 14 is fixed, and when the first end 141 is driven to rotate by the stirring gear 13, the second end 142 of the stirring member 14 can slide in the limiting track 11b, so that the entire stirring member 14 can swing along a preset track, the certainty of the movement of the second end 142 of the stirring member 14 is improved, and the reliability of the swinging of the stirring member 14 is improved. Of course, the damage to the stirring member 14 can also be reduced.

[0095] In some embodiments, referring toFigures 2 to 3 The extension profile is a straight line. The extension profile is a line connecting the center of the first end 141 and the center of the second end 142. In the direction from the first end 141 to the second end 142, the stirring member 14 extends downward relative to the developing roller 12 under its own gravity.

[0096] In the direction from the first end 141 to the second end 142, the stirring member 14 extends downward relative to the developing roller 12 under its own gravity, which means that the stirring member 14 in a static state corresponds to a cantilever, and due to its own gravity and only the fixed form of the first end 141, the free end of the cantilever, i.e. the second end 142, will be offset a certain distance relative to the first rotation axis.

[0097] It can be understood that when the stirring gear 13 drives the first end 141 of the stirring member 14 to rotate, the second end 142 follows the rotation, and at the same time, due to the centrifugal force generated by the rotation of the second end 142, the offset distance of the second end 142 relative to the central axis of the stirring gear 13 will increase, so that the second end 142 can swing in a larger range, thereby improving the stirring effect on the developer.

[0098] In this embodiment, the stirring member 14 is a cantilever with the first end 141 fixed and the second end 142 free, and the second end 142 of the stirring member 14 will be offset a certain distance relative to the central axis of the stirring gear 13, whether in a moving state or a static state, so that the second end 142 can swing in a larger range, thereby improving the stirring effect on the developer.

[0099] In other embodiments, the extension profile includes at least one curved segment.

[0100] That is, part or all of the extension profile is a curve.

[0101] Exemplarily, the stirring member 14 is formed as part of a flexible structure, and the extension profile thereof is a curve.

[0102] In this embodiment, the extension profile includes at least one curved segment, which can increase the occupied space of the stirring member 14 in the cartridge 11, thereby increasing the stirring range of the stirring member 14 and improving the stirring effect on the developer.

[0103] In some embodiments, referring to Figures 8 to 11 The developing cartridge 10 includes a transmission member 15. One end of the transmission member 15 is in transmission connection with the stirring gear 13, and the other end is connected with the first end 141. The first end 141 can at least generate displacement in the left-right direction relative to the transmission member 15.

[0104] It should be noted that the transmission member 15 can be arranged inside the box body 11, or arranged outside the box body 11, or partially arranged inside the box body 11 and partially arranged outside the box body 11, which is not limited herein.

[0105] Here, at least displacement along the left-right direction is generated, including multiple cases. First, the second end 142 is a free end. In this case, the stirring member 14 will be offset relative to the first rotation axis under its own gravity, regardless of the case. At this time, the displacement of the first end 141 relative to the transmission member 15 includes a component along the left-right direction and a component perpendicular to the left-right direction.

[0106] Second, the second end 142 is connected to the box body 11, i.e., the position of the second end 142 relative to the box body 11 is fixed. In this case, the first end 141 can at least drive the movement of the part between the first end 141 and the second end 142, while also improving the movement stability and reliability of the stirring member 14, and the service life of the stirring member 14.

[0107] In this embodiment, the stirring gear 13 transmits power and movement through the transmission member 15, so that the first end 141 can at least generate displacement along the left-right direction relative to the transmission member 15, so that at least part of the stirring member 14 can move along the left-right direction, thereby stirring the developer. In addition, the transmission member 15 can convert the rotation of the stirring gear 13 into other forms of movement, thereby changing the movement form and stirring range of the stirring member 14, and improving the stirring effect of the stirring member 14 at different positions inside the box body 11.

[0108] The way in which the first end 141 can at least generate displacement along the left-right direction relative to the transmission member 15 is not limited.

[0109] In some embodiments, referring to Figures 8 to 11 , the stirring member 14 includes two oppositely arranged connecting portions 144. The two connecting portions 144 are respectively connected to the first end 141 and the second end 142. The first end 141 and the second end 142 are respectively rotationally connected to the two connecting portions 144. The transmission member 15 includes a transmission shaft 151 and a cam portion 152. The transmission shaft 151 is rotationally arranged in the first end 141 and can drive the cam portion 152 to rotate relative to the first end 141. The cam portion 152 has a cam surface 152a. The cam surface 152a is used to abut against the first end 141, so that the first end 141, the two connecting portions 144 and the second end 142 are relatively rotated, so that the stirring member 14 at least generates displacement along the left-right direction.

[0110] It should be noted that the specific structure of the connecting portion 144 is not limited.

[0111] The stirring member 14 comprises two oppositely arranged connecting portions 144. The two connecting portions 144 are respectively connected with the first end 141 and the second end 142, that is, the first end 141, the connecting portion 144, the second end 142 and the connecting portion 144 are sequentially connected, thereby forming a frame.

[0112] The first end 141 and the second end 142 are respectively rotationally connected with the two connecting portions 144, wherein the rotational connection can be a hinged connection. In this way, the stirring member 14 constitutes a four-bar linkage mechanism.

[0113] The transmission shaft 151 is rotationally arranged in the first end 141 and can drive the cam portion 152 to rotate relative to the first end 141. That is, the transmission shaft 151 is rotationally connected with the first end 141, and the transmission shaft 151 and the cam portion 152 can be directly connected or indirectly connected, which is not limited herein.

[0114] In this embodiment, the cam surface 152a abuts against the first end 141. In this way, the cam surface 152a can drive the first end 141 to at least produce a displacement along the left-right direction, thereby causing the two connecting portions 144 to at least produce a displacement along the left-right direction, and further causing the second end 142 to at least produce a displacement along the left-right direction. As a result, the first end 141, the two connecting portions 144 and the second end 142 relatively rotate, the stirring member 14 at least produces a displacement along the left-right direction, and the entire stirring member 14 swings in a certain plane, thereby achieving a large-scale stirring of the developer.

[0115] Of course, the stirring member 14 can also be formed as a three-bar linkage or other multi-bar linkage structure, which is not limited herein.

[0116] In other embodiments, one of the transmission member 15 and the first end 141 is provided with a spiral protrusion, and the other is provided with a matching groove. The spiral protrusion cooperates with the matching groove to cause the stirring member 14 to at least produce a displacement along the left-right direction.

[0117] In this way, the spiral protrusion cooperates with the matching groove to drive the stirring member 14 to at least move along the left-right direction, while further reducing the impact generated when the transmission member 15 drives the stirring member 14.

[0118] In some embodiments, referring to Figure 4 and Figure 5 at least part of the stirring member 14 is formed as a flexible structure. The first end 141 is fixedly connected with the stirring gear 13. The second end 142 is connected with the box body 11.

[0119] It should be noted that the second end 142 is connected with the box body 11, which can be that the box body 11 limits the second end 142 in the left-right direction, and the second end 142 can rotate relative to the box body 11; or the second end 142 can be fixedly connected with the box body 11.

[0120] In this embodiment, the first end 141 and the second end 142 are both non-free ends, which can increase the connection strength of the box body 11 to the stirring piece 14 and improve the reliability of the stirring piece 14. The flexible structure part can swing or universal swing at a position more deviated from the central axis of the stirring gear 13, thereby improving the stirring effect of the stirring piece 14 on the developer.

[0121] For example, the length of the extension contour line of the stirring piece 14 is greater than the size of the box body 11 in the left-right direction, so that the flexible structure part of the stirring piece 14 can swing or universal swing at a position more deviated from the central axis of the stirring gear 13, which can further improve the stirring range of the stirring piece 14, and at the same time, can increase the connection strength of the box body 11 to the stirring piece 14, and the reliability of the stirring piece 14 is higher.

[0122] In some embodiments, referring to Figure 12 , the stirring piece 14 can rotate under the driving of the stirring gear 13. The stirring piece 14 has a second rotation axis extending in a first direction. The first direction intersects the left-right direction.

[0123] It should be noted that the stirring piece 14 can rotate under the driving of the stirring gear 13, and the stirring gear 13 and the first end 141 can be fixedly connected or transmissionally connected. The second end 142 and the box body 11 can have no connection relationship, or can be rotationally connected or fixedly connected, which is not limited herein.

[0124] The stirring piece 14 has a second rotation axis extending in a first direction, as shown in Figure 12 , the second rotation axis is represented by z.

[0125] In this embodiment, the first direction intersects the left-right direction, that is, the first rotation axis and the second rotation axis are not parallel to each other, so that the second end 142 of the stirring piece 14 can deviate from the central axis of the stirring gear 13, thereby increasing the stirring range of the second end 142 of the stirring piece 14 in the process of rotation. At the same time, it is also beneficial to the stirring piece 14 to drive the blades 143 provided thereon to sweep the developer in the box body 11 through the rotation of the stirring piece 14.

[0126] In some embodiments, the stirring piece 14 is a rigid piece.

[0127] It should be noted that the rigid piece refers to a part or component that is not easy to deform or bend when subjected to external force. Rigidity is the ability of an object to resist deformation when subjected to an external force, that is, the characteristic that the object is not easy to bend or twist.

[0128] In this embodiment, the stirring member 14 is rigid, that is, the stirring member 14 is not easily deformed, which can improve the structural strength of the stirring member 14 and improve the effect of transferring the stirring torque to the second end 142.

[0129] Exemplarily, the extension contour line of the stirring member 14 can be a straight line and can be perpendicular or not perpendicular to the left-right direction,

[0130] In some embodiments, referring to Figure 12 The developing cartridge 10 includes a transition member 16. The transition member 16 connects the stirring gear 13 and the first end 141. The transition member 16 includes a bevel gear. One end of the bevel gear is engaged with the stirring gear 13, and the other end is connected with the stirring member 14.

[0131] It should be noted that the bevel gear can change the second rotation axis of the stirring member 14 and the position of the stirring member 14, so that the stirring member 14 can be offset from the central axis of the stirring gear 13.

[0132] The transition member 16 can be arranged in the cartridge body 11, or arranged outside the cartridge body 11, or partially arranged in the cartridge body 11 and partially arranged outside the cartridge body 11, which is not limited here.

[0133] Here, the transmission reliability between the transition member 16 and the stirring member 14 can be improved by the engagement transmission of the transition member 16 and the stirring member 14, and the stirring effect of the stirring member 14 can be improved. In addition, the stirring member 14 can be offset from the central axis of the stirring gear 13, and the stirring member 14 is closer to the inner wall of the cartridge body 11, thereby improving the stirring effect of the stirring member 14.

[0134] In other embodiments, at least part of the transition member 16 is a flexible structure.

[0135] At least part of the transition member 16 is a flexible structure, wherein the flexible structure part can be in the form of a soft rope.

[0136] Here, the stirring gear 13 can drive the flexible structure part of the transition member 16 to pull the stirring member 14 to rotate by driving the first end 141, so that the stirring member 14 can be arranged away from the central axis of the stirring gear 13 and close to the inner wall of the cartridge body 11, thereby improving the stirring effect of the stirring member 14.

[0137] The specific form of the transition member 16 is not limited.

[0138] Another aspect of the embodiments of the present application provides a processing cartridge, which includes the developing cartridge 10 provided by any of the embodiments of the present application.

[0139] As Figure 2 and Figure 3The image shows a developing cartridge 10 and a stirring member 14 according to a first embodiment of this application. In this embodiment, the stirring gear 13 has a gear shaft 13a, and the stirring member 14 has a stirring hole 14a located at the first end 141. The stirring gear 13 drives the first end 141 of the stirring member 14 through the cooperation between the gear shaft 13a and the stirring hole 14a. The first end 141 is fixed relative to the cartridge body 11. Meanwhile, the second end 142 of the stirring member 14 is a free end and has no connection with the cartridge body 11. Thus, the stirring member 14 is a cantilever beam fixed at one end. Under the action of its own gravity, the second end 142 undergoes a certain elastic deformation along the direction of gravity. The second end 142 can deviate from the central axis of the stirring gear 13, thereby increasing the stirring range of the second end 142 when the stirring gear 13 drives the first end 141 to rotate.

[0140] Please see Figure 4 and Figure 5 The present invention relates to a second embodiment of the developing cartridge 10 and a stirring member 14. In this embodiment, at least a portion of the stirring member 14 is formed as a flexible structure. The first end 141 of the stirring member 14 is poweredly connected to the stirring gear 13, and the second end 142 is a free end that can move freely in all directions. The stirring gear 13 drives the first end 141, which can drive the stirring member 14 to move in all directions within the cartridge 11, thereby increasing the stirring range of the stirring member 14.

[0141] Please see Figure 6 and Figure 7 The present invention relates to a third embodiment of a developing cartridge 10 and a stirring member 14. In this embodiment, the first end 141 of the stirring member 14 is poweredly connected to the stirring gear 13, and a limiting structure 11a is provided inside the cartridge body 11. A limiting track 11b is provided inside the limiting structure 11a. The second end 142 is disposed within the limiting track 11b to allow the stirring member 14 to swing along a preset trajectory, wherein the limiting track 11b is elliptical. During the swinging process of the stirring member 14 along the preset trajectory, the second rotation axis of the stirring member 14 is never parallel to the central axis of the stirring gear 13.

[0142] Please see Figures 8 to 11 The present invention relates to a fourth embodiment of the developing cartridge 10 and a stirring member 14. In this embodiment, a cam surface 152a abuts against a first end 141. Thus, the cam surface 152a can drive the first end 141 to rotate relative to the transmission shaft 151. The position where the first end 141 is rotatably connected to the two connecting parts 144 will generate at least a displacement in the left and right directions. This will cause the two connecting parts 144 to generate at least a displacement in the left and right directions, thereby driving the second end 142 to generate at least a displacement in the left and right directions. As a result, the first end 141, the two connecting parts 144 and the second end 142 rotate relative to each other, and the stirring member 14 generates at least a displacement in the left and right directions. The entire stirring member 14 oscillates in a certain plane, thereby achieving a wide range of stirring of the developer.

[0143] Please refer to Figure 12 For the fifth embodiment of the present application, the transition piece 16 is connected to the stirring gear 13 and the first end 141. The transition piece 16 comprises a bevel gear. One end of the bevel gear is engaged with the stirring gear 13, and the other end is connected to the stirring piece 14. In this way, the transmission reliability between the transition piece 16 and the stirring piece 14 can be improved, and the stirring force of the stirring piece 14 can be improved. In addition, the stirring piece 14 can be biased to the central axis of the stirring gear 13, and the stirring piece 14 is closer to the inner wall of the cartridge body 11, thereby improving the stirring effect of the stirring piece 14.

[0144] Further, based on the second embodiment, the present application also has a sixth embodiment, in which the stirring piece 14 can be a spring. One end of the spring is the first end 141 and is connected to the stirring gear 13, and the other end of the spring is the second end 142, which is a free end and can move in all directions. The first end 141 is driven by the stirring gear 13, and the spring can be driven to move in all directions in the cartridge body 11.

[0145] Further, based on the second embodiment, the present application also has a seventh embodiment, in which at least part of the stirring piece 14 is formed as a flexible structure, for example, a soft rope. The first end 141 of the stirring piece 14 is connected to the stirring gear 13, and the second end 142 is connected to the cartridge body 11 or is fixedly connected. The first end 141 is driven by the stirring gear 13, and the flexible structure of the stirring piece 14 can be driven to swing in the cartridge body 11.

[0146] The various embodiments / implementation modes provided by the present application can be combined with each other without contradiction.

[0147] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. Various modifications and changes can be made by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A developing cartridge, characterized by, The application relates to a developing device, comprising: a box body for containing a developer; a developing roller rotatably arranged in the box body, the developing roller having a first rotation axis extending in a left-right direction; a stirring gear connected to the box body for receiving a driving force; a stirring member arranged in the box body, the stirring member being used for stirring the developer in the box body; the stirring member comprises a first end and a second end in an extending direction, the first end is in power connection with the stirring gear, the second end extends from the connection with the first end to a direction away from the stirring gear, the stirring member has an extending contour line, the extending contour line is a connecting line of the centers of the stirring member at different positions in the extending direction, and the extending contour line intersects the first rotation axis.

2. The process cartridge according to claim 1, wherein, At least a part of the stirring member is formed as a flexible structure; and / or at least one blade is connected to the stirring member, the blade is arranged on at least one side of the stirring member in a front-rear direction, wherein the left-right direction intersects the front-rear direction.

3. The process cartridge according to claim 1 or 2, wherein The first end is fixedly connected with the stirring gear, and the second end is a free end.

4. The process cartridge of claim 3 wherein, The second end can be universally moved in the box body; alternatively, a limiting structure is arranged in the box body, a limiting track is arranged in the limiting structure, and the second end is arranged in the limiting track, so that the stirring member swings along a preset track.

5. The process cartridge of claim 3 wherein, The extending contour line is a straight line, the extending contour line is a connecting line of the center of the first end and the center of the second end, in the direction from the first end to the second end, the stirring member extends downward relative to the developing roller under its own gravity; alternatively, the extending contour line comprises at least one curved segment.

6. The process cartridge according to claim 1 or 2, wherein The developing box comprises a transmission member, one end of the transmission member is in transmission connection with the stirring gear, the other end is connected with the first end, and the first end can at least generate displacement in the left-right direction relative to the transmission member.

7. The process cartridge of claim 6 wherein, The stirring member comprises two oppositely arranged connecting portions, the two connecting portions are respectively connected with the first end and the second end, the first end and the second end are respectively in rotation connection with the two connecting portions, the transmission member comprises a transmission shaft and a cam portion, the transmission shaft is rotatably arranged in the first end and can drive the cam portion to rotate relative to the first end, the cam portion has a cam surface for abutting against the first end, so that relative rotation occurs among the first end, the two connecting portions and the second end, and the stirring member at least generates displacement in the left-right direction; alternatively, one of the transmission member and the first end is provided with a spiral protrusion, and the other is provided with a matching groove, the spiral protrusion and the matching groove are matched, so that the stirring member at least generates displacement in the left-right direction.

8. The process cartridge of claim 1, wherein, At least a part of the stirring member is formed as a flexible structure, the first end is fixedly connected with the stirring gear, and the second end is connected with the box body.

9. The process cartridge of claim 1, wherein, The stirring member can be rotated under the driving of the stirring gear, the stirring member has a second rotation axis extending in a first direction, the first direction intersects the left-right direction; and / or the stirring member is a rigid member.

10. The process cartridge of claim 9 wherein, The developing cartridge includes a transition piece connecting the stirring gear with the first end; The transition piece includes a bevel gear, one end of which is engaged with the stirring gear and the other end of which is connected with the stirring member; Alternatively, at least part of the transition piece is a flexible structure.

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