Processing box

Abstract

The processing box comprises a first bin body, a second bin body and a powder bin cover, and the first bin body is provided with a powder outlet; the two ends of the second bin body are connected into a whole and are provided with a first side part and a second side part, the first side part is provided with a positioning hole and a first photosensitive drum assembly hole, and the second side part is provided with a first pin shaft hole and a second photosensitive drum assembly hole; the two ends of the first bin body are connected with a positioning support and a conductive support, the positioning support is provided with a positioning column capable of extending into the positioning hole, the conductive support is provided with a second pin shaft hole, and a connecting pin shaft can penetrate through the first pin shaft hole and the second pin shaft hole to connect the first bin body and the second bin body together. The first side part and the second side part are integrally formed on the two sides of the second bin body respectively, so that the number of parts is reduced, the assembly process is simplified, and better structural strength and accuracy are achieved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of electronic imaging photography, concretely relates to a processing box for image forming equipment. BACKGROUND

[0002] Image forming apparatuses such as laser printers and copying machines generally have an image processing unit and a developing unit, and a toner or the like provided by the developing unit is used to develop an electrostatic latent image formed on the image processing unit, so as to form a visible image on a medium such as paper. The developing unit includes a processing box, which is a box that can be detachably installed in a main machine of the image forming apparatus. Some processing boxes include a first housing and a second housing, and the first housing is used to accommodate the toner. The first housing, the second housing, and a toner housing cover together form an outer shell of the processing box. Two end covers are further provided on the outer shell at both ends of the outer shell. One of the end covers covers a gear cover provided at an end portion of each rotating component, and is also commonly referred to as a gear end cover. The other end cover is provided on one side of a conductive element, and is also commonly referred to as a conductive end cover. Two ends of a photosensitive drum are respectively installed on the gear end cover and the conductive end cover. The gear end cover, the conductive end cover, and the second housing of the existing processing box are independent components, and when assembled, the gear end cover, the conductive end cover, and the second housing are assembled together by screws, and then assembled with the first housing. The number of components is large, the assembly process is complex, and the assembly tolerance between the components inevitably exists, which affects the accuracy of the product. SUMMARY

[0003] The utility model aims at providing a processing box which has a simple assembly process, high structural strength, and high accuracy.

[0004] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions:

[0005] The processing box includes a first housing, a second housing, and a toner housing cover. The first housing is provided with a toner outlet. Two ends of the second housing are integrally connected with a first side portion and a second side portion. The first side portion is provided with a positioning hole and a first photosensitive drum assembly hole. The second side portion is provided with a first pin shaft hole and a second photosensitive drum assembly hole. Two ends of the first housing are connected with a positioning bracket and a conductive bracket. The positioning bracket is provided with a positioning column which can be inserted into the positioning hole. The conductive bracket is provided with a second pin shaft hole. A connecting pin shaft can pass through the first pin shaft hole and the second pin shaft hole, so as to connect the first housing and the second housing together.

[0006] In some embodiments, the first housing can rotate relative to the second housing around an axis of the connecting pin shaft.

[0007] In some embodiments, a photosensitive drum rotatable about its own axis is arranged on the second cartridge body, and two ends of the photosensitive drum are respectively matched with the first photosensitive drum assembly hole and the second photosensitive drum assembly hole.

[0008] In some embodiments, the powder cartridge cover has a bending part protruding outward.

[0009] In some embodiments, the first cartridge body has a first cartridge wall and a second cartridge wall integrally connected; the first cartridge wall has a first bending structure protruding outward; and / or, the second cartridge wall has a second bending structure protruding outward.

[0010] Further, the first bending structure and the second bending structure are formed by intersection of two adjacent cartridge wall plates.

[0011] In some embodiments, a developing roller rotatable about its own axis is arranged in the first cartridge body.

[0012] In some embodiments, a powder feeding roller rotatable about its own axis is arranged in the first cartridge body.

[0013] According to the above technical solution, the first side part and the second side part are integrally formed on the two sides of the second cartridge body, and the photosensitive drum assembly hole, the positioning hole and the pin shaft hole are arranged on the first side part and the second side part, which replaces the gear end cover and the conductive end cover in the existing processing cartridge structure. The integrally formed structure reduces the number of parts and simplifies the assembly process. Moreover, the first side part, the second side part and the second cartridge body are an integral structure and are simultaneously produced by injection molding, which has better structural strength than an assembled part, avoids assembly tolerance and has better accuracy. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present application, the following will briefly introduce the drawings needed in the embodiments or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and those skilled in the art can obtain other drawings according to these drawings without creative labor.

[0015] Figure 1 FIG. 1 is a structural schematic diagram of a processing cartridge according to an embodiment of the present application;

[0016] Figure 2 FIG. 2 is an exploded structural schematic diagram of the processing cartridge according to the embodiment of the present application;

[0017] Figure 3 FIG. 3 is a structural schematic diagram of a second cartridge body according to the embodiment of the present application;

[0018] Figure 4Structure schematic view of another angle of the second bin body of the embodiment of the present utility model;

[0019] Figure 5 Structure schematic view of the conductive support of the embodiment of the present utility model;

[0020] Figure 6 Sectional view of the processing box when the second bin body is not assembled of the embodiment of the present utility model;

[0021] Figure 7 External structure schematic view of the processing box when the second bin body is not assembled of the embodiment of the present utility model;

[0022] Figure 8 External structure schematic view of another angle of the processing box when the second bin body is not assembled of the embodiment of the present utility model.

[0023] The specific embodiments of the present utility model are further described in detail below in combination with the drawings. Specific embodiments

[0024] The present utility model is described in detail below in combination with the drawings, and in the detailed description of the embodiment of the present utility model, the drawings showing the structure of the device are partially enlarged without the general proportion, and the schematic view is only an example, which should not limit the scope of protection of the present utility model herein. It should be noted that the drawings are in a simplified form and all use non-precise proportions, only to facilitate, clearly assist in the purpose of explaining the embodiment of the present utility model. At the same time, in the description of the present application, the terms "first", "second" and the like are only used for differentiation, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features; the directions or position relationships indicated by the terms "positive", "negative", "bottom", "upper", "lower", "front", "rear", "left", "right" and the like are based on the directions or position relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, and therefore cannot be understood as limiting the present utility model.

[0025] In the description of the present utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication inside two elements, it can be wireless connection, or it can be wired connection. For ordinary skilled in the art, the specific meaning of the above terms in the present utility model can be understood according to the specific circumstances.

[0026] For example, Figure 1 And Figure 2As shown, the processing cartridge of the embodiment includes a first cartridge body 1, a second cartridge body 2, a powder cartridge cover 3, a positioning bracket 4 and a conductive bracket 5. The first cartridge body 1 is a main cartridge body for containing unused toner, and the first cartridge body 1 is provided with a toner outlet 1a through which the toner is delivered out of the first cartridge body 1. A photosensitive drum 6 is rotatably arranged on the second cartridge body 2 about its own axis, and a developing roller 9, a powder feeding roller 10 and the like are rotatably arranged on the first cartridge body 1 about their own axes. The powder cartridge cover 3 is used to close the open side of the first cartridge body 1. The positioning bracket 4 and the conductive bracket 5 are respectively connected with the first cartridge body 1. The positioning bracket 4 is provided with a driving gear 7 and a positioning column 4a. In some embodiments, the second cartridge body 2 can also be used as a waste toner cartridge for containing the waste toner scraped off the photosensitive drum by a cleaning blade. In the embodiment, the second cartridge body 2 is not used as a waste toner cartridge, and its main function is to mount the photosensitive drum.

[0027] As shown in Figure 2 , Figure 3 and Figure 4 , the second cartridge body 2 of the embodiment is integrally provided with a first side portion 2-1 and a second side portion 2-2 at both ends thereof, i.e., the first side portion 2-1 and the second side portion 2-2 are integrally formed with the second cartridge body 2. The first side portion 2-1 is located at the side of the processing cartridge where various gears are arranged, and the second side portion 2-2 is located at the side of the processing cartridge where conductive components are arranged. The functions of the first side portion 2-1 and the second side portion 2-2 are to support, fix and connect components such as the photosensitive drum, the positioning bracket, the conductive bracket and the like.

[0028] The first side portion 2-1 is provided with a positioning hole 2-1a matched with the positioning column 4a on the positioning bracket 4, and a first photosensitive drum assembly hole 2-1b matched with one end portion of the photosensitive drum 6. The positioning column 4a can extend into the positioning hole 2-1a. The second side portion 2-2 is provided with a first pin shaft hole 2-2a, and a second photosensitive drum assembly hole 2-2b matched with the other end portion of the photosensitive drum 6.

[0029] As shown in Figure 5 , the conductive bracket 5 is provided with a second pin shaft hole 5a, and the connecting pin shaft 8 passes through the first pin shaft hole 2-2a on the second side portion 2-2 and the second pin shaft hole 5a on the conductive bracket 5, thereby connecting the conductive bracket 5 (the first cartridge body 1) and the second cartridge body 2 together. After the processing cartridge is installed in the printer, the first cartridge body 1 can rotate relative to the second cartridge body 2 about the axis of the connecting pin shaft 8, i.e., the first cartridge body 1 and the second cartridge body 2 are movably connected relative to each other. The conductive bracket 5 has the function of conducting electricity, and is used to conduct the current of the printer to the developing roller 9, the powder feeding roller 10 and the toner outlet blade 11 arranged in the first cartridge body 1. In addition to the function of conducting electricity, the conductive bracket 5 also has the function of fixing the rotatable components such as the developing roller, the powder feeding roller and the like.

[0030] In the existing processing box structure, the second bin body and the gear end cover and the conductive end cover are independent components, and when assembling, the gear end cover and the conductive end cover and the second bin body are assembled together first, and then the positioning end cover is fixed on the powder bin, and the positioning column on the positioning end cover is assembled on the positioning hole on the second bin body. The existing structure not only has many parts and complex assembly process, but also has the defect of insufficient precision caused by assembly tolerance. However, the utility model has first side part 2-1 and second side part 2-2 integrally formed on both sides of second bin body 2, and first side part 2-1 and second side part 2-2 have photosensitive drum assembly hole, positioning hole and pin shaft hole, which reduces the number of parts, and when assembling, only need to assemble positioning column 4a on positioning support 4 into positioning hole on first side part 2-1, and pass connecting pin shaft 8 through pin shaft hole on conductive support 5 and second side part 2-2, so as to connect first bin body 1 and second bin body 2 together, and both ends of photosensitive drum 6 are rotationally supported by first side part 2-1 and second side part 2-2, which simplifies the assembly process. Moreover, first side part 2-1 and second side part 2-2 are integrated with second bin body 2, which are produced by simultaneous injection molding, have better structural strength, and can avoid assembly tolerance without assembly, and have better precision.

[0031] As shown in Figure 6 , the carbon powder containing space is mainly enclosed by first bin body 1 and powder bin cover 3. In order to improve the page yield of the processing box, in some embodiments, the capacity of the first bin body can be expanded by improving the shape of the powder bin cover 3 and / or the first bin body 1 bin wall.

[0032] Referring to Figure 6 and Figure 7 , optionally, powder bin cover 3 has outwardly (away from the interior of first bin body 1) protruding bending part 3a, bending part 3a is outwardly protruding, forming an arch (the arch can also be arc-shaped or polygonal or other shapes) with a cross-sectional shape of inverted trapezoidal. Compared with the conventional flat powder bin cover, the outwardly protruding bending part on the powder bin cover 3 of the embodiment can increase the carbon powder containing space composed of the powder bin cover 3 and the first bin body 1, and the bending structure can also increase the strength of the powder bin cover 3.

[0033] As shown in Figure 6 , Figure 7 and Figure 8As shown, the first bin body 1 has a first bin wall 1-1 and a second bin wall 1-2 connected integrally, wherein the first bin wall 1-1 is arranged adjacent to the powder bin cover 3, the second bin wall 1-2 is opposite to the powder bin cover 3, one end of the second bin wall 1-2 is connected to the first bin wall 1-1, the other end is bent to be opposite to the first bin wall 1-1, and a powder outlet is arranged at the end. Optionally, the first bin wall 1-1 has a first outwardly protruding bending structure 1-1a, and the second bin wall 1-2 also has a second outwardly protruding bending structure 1-2a. The bending structures on the two bin walls are actually formed by the intersection of two bin wall plates, and the outwardly protruding bending convex structures formed by the intersection of the two bin wall plates can increase the internal space of the first bin body 1, thereby increasing the carbon powder containing capacity, and the bending structure can also increase the strength of the bin wall.

[0034] The above description of disclosed embodiments enables one of ordinary skill in the art to make or use the application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein can be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A process cartridge, comprising: The first cartridge body, the second cartridge body and the powder cartridge cover, the first cartridge body is provided with a powder outlet; It is characterized in that: Two ends of the second cartridge body are connected to form a body provided with a first side and a second side, the first side is provided with a positioning hole and a first photosensitive drum assembly hole, and the second side is provided with a first pin shaft hole and a second photosensitive drum assembly hole; Two ends of the first cartridge body are connected with a positioning support and a conductive support, the positioning support is provided with a positioning column capable of extending into the positioning hole, and the conductive support is provided with a second pin shaft hole, a connecting pin shaft can pass through the first pin shaft hole and the second pin shaft hole to connect the first cartridge body and the second cartridge body together.

2. The process cartridge of claim 1, wherein: The first cartridge body can rotate relative to the second cartridge body around an axis of the connecting pin shaft.

3. The process cartridge of claim 1, wherein: The photosensitive drum is further provided on the second cartridge body and can rotate around an axis of the photosensitive drum, two ends of the photosensitive drum are matched with the first photosensitive drum assembly hole and the second photosensitive drum assembly hole respectively.

4. The process cartridge of Claim 1, wherein: The powder cartridge cover has a bending part protruding outward.

5. The process cartridge of claim 1, wherein: The first cartridge body has a first cartridge wall and a second cartridge wall connected integrally, the first cartridge wall has a first bending structure protruding outward, and / or the second cartridge wall has a second bending mechanism protruding outward.

6. The process cartridge of Claim 5, wherein: The first bending structure and the second bending mechanism are formed by the intersection of two adjacent cartridge wall plates.

7. The process cartridge of Claim 1, wherein: The first cartridge body is provided with a developing roller capable of rotating around an axis of the developing roller.

8. The process cartridge of Claim 1, wherein: The first cartridge body is provided with a powder feeding roller capable of rotating around an axis of the powder feeding roller.

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