Processing box

Abstract

The utility model relates to the technical field of electronic imaging equipment, and provides a processing box. The processing box comprises a photosensitive unit, a developing unit and an abutting piece, the developing unit comprises a developing roller, the developing unit is pivoted with the photosensitive unit, so that the developing unit can move between a first position and a second position relative to the photosensitive unit, the photosensitive drum is in contact with the developing roller at the first position, and the photosensitive drum is separated from the developing roller at the second position. The abutting piece is movably arranged on the developing unit, and the abutting piece is suitable for moving between a working position and an avoiding position. When the processing box is installed on the electronic imaging equipment, the abutting piece is squeezed by the separating component, and the abutting piece moves to the avoiding position so as to be suitable for avoiding the separating component. According to the processing box, the movable abutting piece is arranged on the developing unit, when the processing box is installed on the electronic imaging equipment, the abutting piece is extruded by the separating component, the abutting piece can move to the avoiding position, the separating component can be avoided, the abutting piece and the separating component are prevented from conflicting, and the electronic imaging equipment or corresponding parts of the processing box are prevented from being damaged.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic imaging equipment, in particular to a processing box. Background Art

[0002] An electronic imaging device forms an image on a recording material using an electronic photographic imaging process. Examples of electronic imaging devices include an electronic photographic copier, an electronic photographic printer, a fax machine, a word processor, etc. An electronic imaging device includes a main body and a processing box. The processing box is generally detachably mounted to the main body. The electronic imaging device forms an image on the recording material through the processing box. Taking an electronic photographic printer as an example, the processing box is equivalent to the printer's toner cartridge, and the recording material is equivalent to paper. The toner cartridge can form an image on the paper.

[0003] The processing box includes a photosensitive unit and a developing unit. The photosensitive unit and the developing unit can also be integrally constructed as a box (which can be called a processing box) that can be detachably installed in an electronic imaging device, wherein the photosensitive unit includes a photosensitive frame, a photosensitive drum, a charging roller and a cleaning scraper, and the developing unit includes a developing frame, a developing roller, a powder feeding roller, a stirring frame and a powder discharge knife.

[0004] During the operation of the electronic imaging device, the developing roller of the processing box contacts and squeezes the photosensitive drum, so that the developer on the developing roller is transferred to the surface of the photosensitive drum forming a specific electrostatic latent image, thereby completing the development process. During the period when the electronic imaging device stops working, the developing roller of the processing box will also contact the photosensitive drum, so that the developer carried on the developing roller will be deposited on the photosensitive drum, and such developer will also be deposited on the recording material, causing contamination of the recording material. Moreover, the long-term friction between the photosensitive drum and the developing roller will accelerate the deterioration of the developing roller and / or the developer.

[0005] In order to solve the above technical problems, a contact piece is arranged on the developing frame, and the electronic imaging device is provided with a forced pushing mechanism, which includes a separation component. When the electronic imaging device stops working, the separation component will abut against the contact piece, and the separation component pushes the contact piece to move, so that the developing roller of the developing unit is separated from the photosensitive drum of the photosensitive unit.

[0006] At present, the main body of the electronic imaging device is provided with a movable drawer, and the processing box is installed on the drawer when in use, and then pushed into the main body so that the processing box can form an image on the recording material at an accurate position.

[0007] However, in the related art, the abutment member arranged on the developing frame is a fixed component. Since the abutment member is close to the end position of the processing box and protrudes outward from the bottom wall of the processing box, when the processing box is pushed into the main body, it will squeeze the separation component of the pushing mechanism in the electronic imaging device, which may easily cause damage to the electronic imaging device or the corresponding parts of the processing box. Utility Model Content

[0008] The utility model provides a processing box to solve the problem in the related art that when the processing box is pushed into the main body, the separation component of the forced pushing mechanism in the electronic imaging device will be squeezed, which easily causes damage to the electronic imaging device or the corresponding parts of the processing box.

[0009] The utility model provides a processing box, comprising:

[0010] Drive side end cover;

[0011] A photosensitive unit, including a photosensitive drum;

[0012] A developing unit, comprising a developing roller, the developing unit being pivotally connected to the photosensitive unit so that the developing unit can move relative to the photosensitive unit between a first position and a second position, wherein the photosensitive drum contacts the developing roller in the first position and the photosensitive drum is separated from the developing roller in the second position;

[0013] An abutment member is movably arranged on the developing unit, and the abutment member is suitable for moving between a working position and an avoidance position, and the avoidance position is closer to the driving side end cover than the working position;

[0014] When the process cartridge is mounted to the electronic imaging device, the abutment member is pressed by the separation member, and the abutment member moves to an avoidance position to avoid the separation member.

[0015] The processing box of the utility model has the beneficial effect that: by arranging a movable abutment on the developing unit, the abutment can move between a working position and an avoidance position. When the processing box is installed on the electronic imaging device, the abutment is squeezed by the separation component, and the abutment can be moved to the avoidance position to avoid the separation component. This can avoid the collision between the separation component and the abutment, and prevent damage to the electronic imaging device or the corresponding parts of the processing box.

[0016] In some embodiments, the abutment member is provided with an avoidance surface, and the separation member slides along the avoidance surface and applies a squeezing force to the avoidance surface, so that the abutment member moves from the working position to the avoidance position.

[0017] In some embodiments, a reset member is further included, which is suitable for applying a force to the abutment member to reset the abutment member from the avoidance position to the working position. After the separation member slides over the avoidance surface, the reset member resets the abutment member from the avoidance position to the working position.

[0018] In some embodiments, a movement direction of the abutment member is parallel to an axis of the developing unit.

[0019] In some embodiments, the abutment member is provided with an abutment surface, which is located on one side of the avoidance surface. After the separation member passes through the avoidance surface and the abutment member is reset to the working position, the abutment surface is opposite to the separation member, and the separation member abuts against the abutment surface and applies a separation force thereto, so that the developing unit moves from the first position to the second position relative to the photosensitive unit.

[0020] In some embodiments, the abutment member is further provided with a transition surface, which is provided between the avoidance surface and the abutment surface, and an angle is formed between the transition surface, the avoidance surface and the abutment surface. After passing through the avoidance surface and the transition surface, the separation component can reach a position opposite to the abutment surface.

[0021] In some embodiments, the abutment surface is parallel to the axis of the developing unit.

[0022] In some embodiments, the avoidance surface is a curved surface or an inclined plane.

[0023] In some embodiments, the abutment member includes a sliding portion, and the abutment member is slidably connected to the developing unit via the sliding portion;

[0024] The sliding part includes a sliding hole, and the developing unit also includes a driving side bracket, the driving side bracket is provided with a sliding shaft, and the sliding hole is sleeved on the sliding shaft;

[0025] The reset member is an elastic member, which is sleeved on the sliding shaft and abuts against the abutment member.

[0026] In some embodiments, a first long arc hole and a second long arc hole are provided on the driving side end cover, and the arc centers of the first long arc hole and the second long arc hole are coaxial with the rotation axis of the developing unit; the developing unit also includes a driving side bracket, and a first rotating shaft and a second rotating shaft are provided on the driving side bracket. The first rotating shaft and the second rotating shaft are respectively arranged in the first long arc hole and the second long arc hole and can rotate around the rotation axis of the developing unit, so that the developing unit can move between the first position and the second position relative to the photosensitive unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 A schematic diagram of the overall structure of a processing box provided by an embodiment of the utility model;

[0028] Figure 2 A schematic diagram of a partial structure of a processing box provided in an embodiment of the utility model;

[0029] Figure 3 A schematic diagram of the structure of the abutment member of the processing box provided by the embodiment of the utility model;

[0030] Figure 4 for Figure 3 Rear view of the abutment structure;

[0031] Figure 5A schematic diagram of the structure in which the abutting member of the process cartridge provided by the embodiment of the utility model is installed behind the developing unit;

[0032] Figure 6 A schematic structural diagram of a process cartridge provided by an embodiment of the utility model, in which the avoidance surface of the abutment member is pressed by a separation member of an imaging device, and the abutment member is in an avoidance position;

[0033] Figure 7 This is a structural schematic diagram showing that the abutting surface of the abutting member of the processing box provided by the embodiment of the utility model is opposite to the separating member of the imaging device and the abutting member is in the working position.

[0034] Reference numerals:

[0035] 1. Separate components;

[0036] 100, photosensitive unit; 110, photosensitive drum; 120, photosensitive frame; 130, photosensitive coupling;

[0037] 200, developing unit; 210, developing roller; 220, developing frame; 230, driving side bracket; 231, first rotating shaft; 232, second rotating shaft; 233, sliding shaft; 234, guide member; 240, conductive side end cover; 250, developing coupling;

[0038] 300, abutment member; 310, avoidance surface; 320, reset member; 330, sliding hole; 340, abutment surface; 350, sliding part; 351, guide hole; 360, reset part; 370, fixing member; 380, transition surface; 381, transition fillet;

[0039] 400, driving side end cover; 410, through hole; 420, notch; 430, first long arc hole; 440, second long arc hole. DETAILED DESCRIPTION

[0040] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiments of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0041] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0042] The following descriptions of directions are as follows:

[0043] The directions Z1 and Z2 are the first directions, the direction indicated by Z1 is the positive direction of the first direction, and the direction indicated by Z2 is the negative direction of the first direction;

[0044] The directions X1 and X2 are the second direction, the direction indicated by X1 is the positive direction of the second direction, and the direction indicated by X2 is the negative direction of the second direction;

[0045] The directions Y1 and Y2 are the third direction, the direction pointed by Y1 is the positive direction of the third direction, and the direction pointed by Y2 is the negative direction of the third direction.

[0046] The first direction, the second direction and the third direction intersect each other.

[0047] The electronic imaging device forms an image on a recording material using, for example, an electronic photographic imaging process. The electronic imaging device includes, for example, an electronic photographic copier, an electronic photographic printer (LED printer, laser printer, etc.), an electronic photographic printer-type fax machine, etc. The processing box is detachably mounted in the electronic imaging device, and the processing box includes a photosensitive drum 110, a developing roller 210 for developing an electrostatic latent image formed on the photosensitive drum 110, etc. The electronic imaging device includes a drive head, which is used to transmit the driving force of the electronic imaging device to the processing box to operate the processing box.

[0048] See also Figure 1 and Figure 2 As shown, this embodiment provides a processing box, including a developing unit 200, a photosensitive unit 100 and a driving assembly, the developing unit 200 includes a developing frame 220, a developing roller 210, a powder feeding roller, a stirring frame and a powder discharge knife, and the photosensitive unit 100 includes a photosensitive frame 120, a photosensitive drum 110, a charging roller and a cleaning scraper. The processing box is roughly in the shape of a rectangular box, which has a length in the first direction (Z1 and Z2 directions), a width in the second direction (X1 and X2 directions), and a height in the third direction (Y1 and Y2 directions); one end of the processing box in the Z1 direction is a driving end, and one end in the Z2 direction is a conductive end, the developing unit 200 and the photosensitive unit 100 are arranged opposite to each other in the second direction, the direction from the developing unit 200 toward the photosensitive drum 110 is the X2 direction, one end of the processing box along the X2 direction is the front end, the direction from the photosensitive drum 110 toward the developing unit 200 is the X1 direction, one end along the X1 direction is the rear end, one end of the processing box along the Y1 direction is the upper end, and one end along the Y2 direction is the lower end.

[0049] See also Figure 1 and Figure 2As shown, the developing frame 220 forms a powder bin for storing toner, and the developing frame 220 is roughly in the shape of a long box. The length direction of the developing frame 220 extends along the first direction (Z1 and Z2 directions). The developing frame 220 is provided with a driving side bracket 230 and a conductive side bracket at both ends of the length direction (Z1 and Z2 directions), respectively. The stirring frame, the powder feeding roller and the developing roller 210 are rotatably supported on the driving side bracket 230 and the conductive side bracket at both ends of the length direction (Z1 and Z2 directions) of the developing frame 220. The stirring frame, the powder feeding roller and the developing roller 210 can rotate under the action of the driving assembly, and the axial directions of the stirring frame, the powder feeding roller and the developing roller 210 are all along the length direction (Z1 and Z2 directions) of the developing frame 220. The toner in the powder bin is stirred by the stirring frame to prevent the toner in the powder bin from agglomerating, and the toner can also be transported to the direction of the powder feeding roller. The powder feeding roller transports the toner to the developing roller 210 and is adsorbed by the charged developing roller 210.

[0050] See also Figure 1 and Figure 2 As shown, the photosensitive frame 120 forms a waste toner bin for collecting waste toner, and the photosensitive frame 120 also has a length direction, which is consistent with the length direction of the developing frame 220 (both along the Z1 and Z2 directions). The photosensitive frame 120 is provided with end caps at both ends in the first direction (Z1 and Z2 directions), which are a driving side end cap 400 fixedly provided at one end of the photosensitive frame 120 in the Z1 direction and a conductive side end cap 240 fixedly provided at one end of the photosensitive frame 120 in the Z2 direction. The photosensitive drum 110 is rotatably supported on the driving side end cap 400 and the conductive side end cap 240. Specifically, the photosensitive drum 110 is provided on the lower end side (the side in the Y2 direction) of the photosensitive frame 120 in the height direction. The toner absorbed by the developing roller 210 is transferred to the photosensitive drum 110 through the potential difference between the developing roller 210 and the photosensitive drum 110. The toner on the photosensitive drum 110 is then transferred by the transfer belt of the electronic imaging device to form an image on the recording material (such as paper). After the transfer, the cleaning blade is in linear contact with the photosensitive drum 110 to clean the toner that has not been completely transferred on the surface of the photosensitive drum 110, that is, the waste toner. The cleaned waste toner is stored in the waste toner bin. The charging roller is used to charge the surface of the photosensitive drum 110 with a uniform charge so that the photosensitive drum 110 can absorb the toner.

[0051] See also Figure 1 to Figure 2As shown, the driving assembly includes a photosensitive coupling 130, a developing coupling 250, a developing roller gear, a powder feeding roller gear and a stirring frame gear. The driving assembly can be arranged at one or both ends of the processing box in the length direction (Z1 and Z2 directions). In this embodiment, the driving assembly is arranged at the same end of the developing unit 200 in the length direction (Z1 and Z2 directions), preferably the driving end (one end in the Z1 direction). The photosensitive coupling 130 is arranged at one end of the photosensitive drum 110 in the Z1 direction, and is used to engage with the photosensitive drive head of the electronic imaging device to receive the driving force, and drive the photosensitive drum 110 to rotate. The developing coupling 250, the developing roller gear, the powder feeding roller gear, and the stirring rack gear are arranged on the outer side of the driving side bracket 230. Specifically, the driving side bracket 230 is provided with a supporting hole for supporting the developing coupling 250. The developing coupling 250 is used to mesh with the developing drive head of the electronic imaging device and receive the driving force. The developing coupling 250 is located approximately in the middle of the developing unit 200 in the third direction (Y1 and Y2 directions); the developing roller gear is sleeved on the end of the shaft of the developing roller 210 extending from the driving side bracket 230, the powder feeding roller gear is sleeved on the end of the shaft of the powder feeding roller extending from the driving side bracket 230, and the stirring rack gear is sleeved on the end of the stirring rack extending from the driving side bracket 230. The developing roller gear, the powder feeding roller gear and the stirring rack gear are directly or indirectly meshed with the developing coupling 250, so that the developing coupling 250 transmits the received driving force, thereby driving the developing roller 210, the powder feeding roller and the stirring rack to rotate. In the third direction (Y1 and Y2 directions), the developing coupling 250 is located on the upper side (the Y1 direction side) of the photosensitive coupling 130 .

[0052] See also Figure 1 As shown, in this embodiment, a through hole 410 and a notch 420 are provided on the driving side end cover 400. When the driving side end cover 400 is installed at the ends of the developing frame 220 and the photosensitive frame 120, the photosensitive coupling 130 is exposed through the through hole 410, and the developing coupling 250 is exposed through the notch 420, so that the developing coupling 250 engages with the driving head of the electronic imaging device to receive the driving force.

[0053] During the operation of the electronic imaging device, the developing roller 210 and the photosensitive drum 110 need to be in close contact. When the electronic imaging device is not working, the developing roller 210 and the photosensitive drum 110 need to be separated by a certain distance to avoid the developing roller 210 and the photosensitive drum 110 being in contact for a long time, which may cause the photosensitive drum 110 to be contaminated by excess developer attached to the developing roller 210, or the developing roller 210 to be deformed or the photosensitive drum 110 to be worn.

[0054] Based on this, the photosensitive unit 100 and the developing unit 200 in this embodiment are configured to be able to move relative to each other, so that the developing roller 210 and the photosensitive drum 110 can be in contact when the electronic imaging device is working and separated when not working. When the process cartridge is installed in the electronic imaging device, the photosensitive unit 100 abuts against the components in the electronic imaging device, and the photosensitive unit 100 is immovable. The developing unit 200 is configured to be able to move between a first position and a second position relative to the photosensitive unit 100. When the developing unit 200 is in the first position, the developing roller 210 is in contact with the photosensitive drum 110; when the developing unit 200 is in the second position, the developing roller 210 is separated from the photosensitive drum 110. In the present embodiment, the movement mode of the developing unit 200 is to swing with the axis of the developing coupling 250 as the rotation center, that is, when the developing unit 200 is located in the first position, the lower end of the developing unit 200 is close to the lower end of the photosensitive unit 100, so that the developing roller 210 can contact the photosensitive drum 110, and at this time, the upper end of the developing unit 200 is located away from the photosensitive unit 100; when the developing unit 200 moves from the first position to the second position, the lower end of the developing unit 200 swings in the direction away from the photosensitive unit 100, driving the developing roller 210 to separate from the photosensitive drum 110, and at this time, the upper end of the developing unit 200 swings in the direction close to the photosensitive unit 100.

[0055] See also Figure 1 In this embodiment, a first long arc hole 430 and a second long arc hole 440 can be provided on the driving side end cover 400, and the arc centers of the first long arc hole 430 and the second long arc hole 440 are coaxially arranged with the axis of the developing coupling 250. A first rotating shaft 231 and a second rotating shaft 232 respectively matching the first long arc hole 430 and the second long arc hole 440 are provided on the driving side bracket 230, and a virtual rotation center formed between the first rotating shaft 231 and the second rotating shaft 232 is coaxial with the axis of the developing coupling 250. After the developing unit 200 is assembled with the photosensitive unit 100, the first rotating shaft 231 and the second rotating shaft 232 are rotatable in the first long arc hole 430 and around the axis of the developing coupling 250 in the second long arc hole 440, respectively, so that the developing unit 200 moves between the first position and the second position relative to the photosensitive unit 100, thereby guiding and limiting the rotational movement of the developing unit 200.

[0056] See also Figure 1 , Figure 2 , Figure 6 and Figure 7 An embodiment of the utility model provides a processing box, which includes a photosensitive unit 100, a developing unit 200 and an abutting member 300.

[0057] Among them, the photosensitive unit 100 includes a photosensitive drum 110, and the developing unit 200 includes a developing roller 210. The developing unit 200 is pivotally connected to the photosensitive unit 100 so that the developing unit 200 can move between a first position and a second position relative to the photosensitive unit 100. In the first position, the photosensitive drum 110 is in contact with the developing roller 210, and in the second position, the photosensitive drum 110 is separated from the developing roller 210.

[0058] The abutting member 300 is movably disposed on the developing unit 200 . The abutting member 300 is suitable for moving between a working position and an evading position. The evading position is farther away from the developing unit 200 than the working position.

[0059] See also Figure 6 When the process cartridge is mounted to the electronic imaging device, the abutment member 300 will be pressed by the separation member 1 , and the abutment member 300 will move to an avoidance position to avoid the separation member 1 .

[0060] Specifically, in some embodiments, the abutment member 300 is slidably mounted at the lower end (Y2 direction) of the driving side bracket 230, and the avoidance position is closer to the driving side end cover 400 than the working position. Figure 2 , the coordinate value of the avoidance position in the Z1 direction (the positive direction of the first direction) is greater than the coordinate value of the working position in the Z1 direction (the positive direction of the first direction), that is, the avoidance position is farther away from the developing unit 200 than the working position in the Z1 direction (the positive direction of the first direction). Figure 2 and Figure 6 , the abutment 300 will be squeezed by the separation member 1, and the separation member 1 may apply a force to the abutment 300 to make it move in the Z1 direction. When the processing box is installed in the electronic imaging device, the abutment 300 moves from the working position to the avoidance position along the direction parallel to the axis of the photosensitive drum 110. It can be understood that the processing box provided by the embodiment of the utility model can move between the working position and the avoidance position by setting a movable abutment 300 in the developing unit 200. When the processing box is installed in the electronic imaging device, the abutment 300 is squeezed by the separation member 1, and the abutment 300 can move to the avoidance position to avoid the separation member 1. In this way, the collision between the separation member 1 and the abutment 300 can be avoided, and the damage of the electronic imaging device or the corresponding parts of the processing box can be prevented.

[0061] See also Figure 3 and Figure 6 In some embodiments of the present invention, the abutment member 300 extends along the second direction (X1 and X2 directions) to form its length direction, extends along the first direction (Z1 and Z2 directions) to form its width direction, and extends along the third direction (Y1 and Y2 directions) to form its height direction, that is, the width direction (Z1 and Z2 directions) of the abutment member 300 is the direction when it moves between the avoidance position and the working position.

[0062] The abutment member 300 is provided with an escape surface 310, and the separation member 1 slides along the escape surface 310 and applies a pressing force to the escape surface 310, so that the abutment member 300 moves from the working position to the escape position. Figure 3 The length direction of the avoidance surface 310 is set along the length direction of the abutment 300 (i.e., the X1 and X2 directions), and the height direction of the avoidance surface 310 is set along the height direction of the abutment 300 (i.e., the Y1 and Y2 directions). That is to say, when the processing box is installed in the electronic imaging device, the separation member 1 generates an extrusion force relative to the abutment 300 along the positive direction of the third direction (Y1 direction), abuts against the avoidance surface 310, slides on the avoidance surface 310 along the Y1 direction, and the separation member 1 generates a force on the abutment 300 to move the abutment 310 along the Z1 direction, that is, the abutment 300 moves from the working position to the avoidance position. The setting of the avoidance surface 310 can make the separation member 1 contact with the abutment 300 more accurately, and when the processing box is installed in the electronic imaging device, the adjustment operation can be reduced, making the installation of the processing box simpler and more convenient.

[0063] See also Figure 2 , Figure 6 and Figure 7 In some embodiments of the present invention, the processing box further includes a reset member 320, which is suitable for applying a force to the abutting member 300 to reset the abutting member 300 from the avoidance position to the working position. After the separation member 1 slides past the avoidance surface 310, the reset member 320 resets the abutting member 300 from the avoidance position to the working position. Specifically, the reset member 320 is arranged on the driving side bracket 230. Of course, refer to Figure 5 The reset member 320 can be a spring, and a spring fixing portion is provided on the driving side bracket 230 along the negative direction of the third direction (i.e., the Y2 direction). One end of the spring abuts against the abutment member 300, and the other end of the spring abuts against the spring fixing portion. The axis of the spring is parallel to the first direction (Z1 and Z2 directions).

[0064] See also Figure 7 A spring is provided so that after the separation member 1 does not squeeze the avoidance surface 310, the abutment 300 can automatically reset to the working position, so that the abutment 300 can contact the separation member 1, and the separation member 1 can apply a separation force along the positive direction of the second direction (i.e., the X1 direction) to the abutment 300 to separate the photosensitive drum 110 from the developing roller 210.

[0065] Furthermore, in order to improve the stability of the combined movement of the abutting member 300 and the separating member 1, in some embodiments of the present invention, the movement direction of the abutting member 300 is parallel to the axis of the developing unit 200, that is, the movement direction of the abutting member 300 is along the first direction (Z1 and Z2 directions). Figure 3 , Figure 4 , Figure 5 and Figure 7 That is to say, in some embodiments, a sliding shaft 233 can be arranged on the driving side bracket 230, and a sliding hole 330 matching the sliding shaft 233 is provided on the abutment 300, and the axis of the sliding shaft 230 is parallel to the axis of the developing roller 210 (that is, the axis of the sliding shaft 230 is arranged along the Z1 and Z1 directions), and the abutment 300 is installed on the sliding shaft 233 of the driving side bracket 230 through the sliding hole 330.

[0066] See also Figure 3 and Figure 7 In some embodiments of the present invention, the abutting member 300 is provided with an abutting surface 340, which is located on one side of the avoidance surface 310. After the separation member 1 passes through the avoidance surface 310 and the abutting member 300 is reset to the working position, the abutting surface 340 is opposite to the separation member 1. Figure 3 The length direction of the abutting surface 340 is arranged along the height direction of the abutting member 300 (i.e., the Y1 and Y2 directions), and the width direction of the avoiding surface 310 is arranged along the length direction of the abutting member 300 (i.e., the Z1 and Z2 directions). When the separation member 1 is retracted in the X2 direction, the abutting member 300 is reset from the avoiding position to the working position in the Z2 direction. At this time, the separation member 1 is opposite to the abutting surface 340.

[0067] After the separation member 1 abuts against the abutting surface 340 and applies a separation force thereto, the abutting member 300 is subjected to a force, forcing it to move along the X1 direction, so that the developing unit 200 moves from the first position to the second position relative to the photosensitive unit 100 , thereby separating the developing roller 210 from the photosensitive drum 110 .

[0068] Furthermore, the abutting surface 340 is parallel to the axis of the developing unit 200 , that is, the abutting surface 340 is parallel to the plane formed by the first direction (Z1 and Z2 directions) and the third direction (Y1 and Y2 directions), so that the abutting member 300 can be better subjected to the force of the separation member 1 .

[0069] It can be understood that the abutting surface 340 is disposed on one side of the avoidance surface 310 , so that the separation member 1 can better apply a separation force to the abutting member 300 , thereby separating the photosensitive drum 110 from the developing roller 210 .

[0070] Furthermore, in order to allow the separation member 1 to more smoothly retreat from the avoidance surface 310 along the X2 direction to the position relative to the abutment surface 340, a transition surface 380 can be set between the avoidance surface 310 and the abutment surface 340, and an angle is formed between the transition surface 380 and the avoidance surface 310, and between the transition surface 380 and the abutment surface 340, that is, the transition surface 380 and the avoidance surface 310, and between the transition surface 380 and the abutment surface 340 are not parallel or coincident, but a transition effect is formed by the angle setting. In some embodiments, the transition surface 380 is inclined to the plane formed by the first direction (Z1 and Z2 directions) and the third direction (Y1 and Y2 directions), and a transition fillet 381 is provided at the connection between the transition surface 380 and the abutment surface 340 and other parts of the abutment member 300.

[0071] See also Figure 3 and Figure 6 In some embodiments of the utility model, the avoidance surface 310 can be a curved surface or an inclined plane. When the avoidance surface 310 is a curved surface, the virtual center of the arc is in the positive direction of the first direction (i.e., the Z1 direction). When the avoidance surface 310 is an inclined plane, the acute angle of the angle formed by the inclined plane and the plane formed by the first direction (Z1 and Z2 directions) and the second direction (X1 and X2 directions) is on the Z1 direction side, that is, the inclined plane is inclined toward the Z1 direction.

[0072] When the separation member 1 contacts the avoidance surface 310 of the arc surface or the inclined plane, as long as a force is applied to it along the radial direction of the developing roller 210 (i.e., the Y1 direction), the abutment 300 can be moved along the axial direction of the developing roller 210 (i.e., the Z1 direction). When the processing box is installed on the electronic imaging device, under the action of external force, the separation member 1 squeezes the avoidance surface 310 of the abutment 300, and the abutment 300 can move from the working position to the avoidance position (towards the Z1 direction) to realize the avoidance function.

[0073] See also Figure 4 , Figure 5 and Figure 6 In some embodiments of the present invention, the abutting member 300 includes a sliding portion 350 , and the sliding portion 350 is slidably connected to the developing unit 200 . The abutting member 300 is provided with a reset portion 360 , and the reset member 320 is provided at the reset portion 360 .

[0074] Specifically, the sliding portion 350 is provided with a sliding hole 330 and a guide hole 351. The sliding portion 350 is arranged above the avoidance surface 310 of the abutment 300 (i.e., the Y1 direction). The axes of the sliding hole 330 and the guide hole 351 are along the first direction (Z1 and Z2 directions). The sliding hole 330 is closer to the photosensitive drum 110 side (i.e., the X2 direction) than the guide hole 351. The reset portion 360 can be a step. At the position where the sliding hole 330 is set, the body of the cutting abutment 300 can form a step along the Z2 direction. In some embodiments, when the abutment 300 is assembled with the driving side bracket 230, the sliding hole 330 is sleeved on the sliding shaft 233. The spring fixing portion can be the sliding shaft 233 at this time. The spring is sleeved on the sliding shaft 233. A fixing member 370 is set at one end of the sliding shaft 233 away from the driving side bracket 230. At this time, one end of the spring can abut against the step, and the other end of the spring abuts against the fixing member 370. The fixing member 370 can be a screw. When the abutment 300 is installed on the driving side bracket 230, the sliding shaft 233 passes through the sliding hole 330, the spring is sleeved on the sliding shaft 233, and the screw is connected to the sliding shaft 233 along the axial direction of the sliding shaft 233 to fix the spring, so as to realize the reset of the abutment 300 from the avoidance position to the working position.

[0075] Further, see Figure 5 A guide member 234 may also be provided on the driving side bracket 230. The guide member 234 may be a guide shaft, which is located on the side of the sliding shaft 233 away from the photosensitive drum 110 (i.e., the X1 direction). The guide shaft is parallel to the axis of the sliding shaft 233, and the guide shaft matches the guide hole 351 to increase the movement stability of the abutment member 300 on the driving side bracket 230.

[0076] Combination Figures 1 to 7 The working principle of the processing box provided by the embodiment of the utility model is as follows: when the processing box is installed on the electronic imaging device, the abutment 300 contacts the separation component 1, the separation component 1 contacts the avoidance surface 310 and slides along the Y1 direction, and the separation component 1 applies an extrusion force to the abutment 300, so that the abutment 300 slides from the working position to the avoidance position along the sliding shaft 233, that is, the abutment 300 moves along the first direction to the Z1 direction, so that the abutment 300 avoids the separation component.

[0077] When the processing box needs to work, the separation component 1 passes through the avoidance surface 310, that is, the separation component 1 moves in the X2 direction and retreats from X1 to the X2 direction. After the abutment member 300 is reset to the working position under the action of the spring, the abutment member 300 moves along the first direction to the Z2 direction. At this time, the separation component 1 is opposite to the abutment surface 340.

[0078] When the electronic imaging device stops working, the separation member 1 will abut against the abutting surface 340, and the separation member 1 applies a separation force to the abutting surface 340 along the second direction toward the X1 direction, and the abutting member 300 is forced to move toward the X1 direction, so that the developing unit 200 moves from the first position to the second position relative to the photosensitive unit 100, and then the photosensitive drum 110 is separated from the developing roller 210. When the electronic imaging device needs to work, the developing unit 200 can move from the second position to the first position relative to the photosensitive unit 100 through the elastic member or other related components provided on the processing box, or through its own gravity, so that the photosensitive drum 110 contacts the developing roller 210. The relevant structure can adopt the existing technology, which will not be described in detail here.

[0079] The above are only some embodiments of the present invention. For those skilled in the art, several modifications and improvements can be made without departing from the inventive concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A process cartridge detachably mounted in an electronic imaging device, the electronic imaging device comprising a forced pushing mechanism, the forced pushing mechanism comprising a separation member, characterized in that: The processing box comprises: Drive side end cover; A photosensitive unit, including a photosensitive drum; A developing unit, comprising a developing roller, the developing unit being pivotally connected to the photosensitive unit so that the developing unit can move relative to the photosensitive unit between a first position and a second position, wherein the photosensitive drum contacts the developing roller in the first position and the photosensitive drum is separated from the developing roller in the second position; an abutment member, movably disposed on the developing unit, the abutment member being adapted to move between a working position and a avoiding position, the avoiding position being closer to the driving side end cover than the working position; When the process cartridge is mounted to the electronic imaging device, the abutment member is pressed by the separation member, and the abutment member moves to an avoidance position to avoid the separation member.

2. The process cartridge according to claim 1, wherein: The abutment member is provided with an avoidance surface, and the separation member slides along the avoidance surface and applies a pressing force to the avoidance surface, so that the abutment member moves from the working position to the avoidance position.

3. The process cartridge according to claim 2, wherein: It also includes a reset member, which is suitable for applying a force to the abutment member to reset the abutment member from the avoidance position to the working position. After the separation member slides over the avoidance surface, the reset member resets the abutment member from the avoidance position to the working position.

4. The process cartridge according to claim 3, wherein: The movement direction of the abutment member is parallel to the axis of the developing unit.

5. The process cartridge according to claim 2, wherein: The abutment member is provided with an abutment surface, which is located on one side of the avoidance surface. After the separation member passes through the avoidance surface and the abutment member is reset to the working position, the abutment surface is opposite to the separation member, and the separation member abuts against the abutment surface and applies a separation force thereto, so that the developing unit moves from the first position to the second position relative to the photosensitive unit.

6. The process cartridge according to claim 5, wherein: The abutment member is also provided with a transition surface, which is provided between the avoidance surface and the abutment surface, and the transition surface forms an angle with the avoidance surface and the abutment surface. After passing through the avoidance surface and the transition surface, the separation member can reach a position opposite to the abutment surface.

7. The process cartridge according to claim 5, wherein: The abutting surface is parallel to an axis of the developing unit.

8. The process cartridge according to claim 2, wherein: The avoidance surface is a curved surface or an inclined plane.

9. The process cartridge according to claim 3, wherein: The abutment member includes a sliding portion, and the abutment member is slidably connected to the developing unit through the sliding portion; The sliding portion includes a sliding hole, and the developing unit also includes a driving side bracket, the driving side bracket is provided with a sliding shaft, and the sliding hole is sleeved on the sliding shaft; The reset member is an elastic member, which is sleeved on the sliding shaft and abuts against the abutment member.

10. The process cartridge according to any one of claims 1 to 9, characterized in that: The driving side end cover is provided with a first long arc hole and a second long arc hole, and the arc centers of the first long arc hole and the second long arc hole are coaxial with the rotation axis of the developing unit; the developing unit also includes a driving side bracket, and the driving side bracket is provided with a first rotating shaft and a second rotating shaft, the first rotating shaft and the second rotating shaft are respectively arranged in the first long arc hole and the second long arc hole and can rotate around the rotation axis of the developing unit, so that the developing unit can move between a first position and a second position relative to the photosensitive unit.

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