Processing box

Abstract

The utility model relates to a processing box which comprises a developing unit and a photosensitive unit, the developing unit comprises a developing shell and a developing roller rotatably arranged on the developing shell, and the developing shell comprises a first side wall and a second side wall opposite to the first side wall; a first coupling piece is rotatably mounted at the first side wall and is used for receiving driving force from the imaging equipment and driving the developing roller to rotate; the photosensitive unit includes a photosensitive housing and a photosensitive drum rotatably mounted on the photosensitive housing. The third side wall is provided with an L-shaped notch, the first coupling piece is located in the L-shaped notch, and the rotating shaft is located in the round hole. According to the processing box disclosed by the utility model, the L-shaped notch is formed in the side wall of the photosensitive drum shell to accommodate the coupling piece of the developing unit and at least part of the coupling piece of the developing unit extends out of the side wall, so that the coupling piece is conveniently coupled with the driving part of the imaging equipment. The processing box disclosed by the utility model is more convenient to assemble and is beneficial to improving the production efficiency.

Description

Technical Field

[0001] The utility model relates to a processing box, in particular to a processing box used for laser imaging equipment. Background Art

[0002] The process box is an indispensable printing consumable in laser imaging equipment. The process box usually includes a developing unit and a photosensitive unit. The developing unit has a developing roller, and the photosensitive unit has a photosensitive drum. When the process box is working, the developer on the developing roller is transferred from the developing roller to the photosensitive drum under the action of voltage.

[0003] Chinese patent document CN105929661A discloses a processing box, which includes a developing unit, a photosensitive unit, a driving side covering component and a non-driving side covering component. The driving side covering component has a first hole portion and a second hole portion, the first hole portion is used to rotatably support one end of the photosensitive drum, and the second hole portion is used to rotatably support the supporting cylinder of the developing unit. When assembling this processing box, after the developing unit and the photosensitive unit are assembled, one end of the photosensitive drum and the supporting cylinder of the developing unit are inserted into the first hole portion and the second hole portion of the driving side covering component to form the processing box. The two holes on the driving side covering component make it difficult to assemble the processing box, affecting production efficiency. Utility Model Content

[0004] The purpose of the utility model is to provide a processing box, which is easy to assemble while meeting the processing box performance requirements.

[0005] In order to achieve the above-mentioned purpose, the processing box of the utility model includes a developing unit and a photosensitive unit, wherein the developing unit includes a developing housing and a developing roller rotatably mounted on the developing housing, wherein the developing housing includes a first side wall and a second side wall opposite to the first side wall; a first coupling member is rotatably mounted on the first side wall, and the first coupling member is used to receive a driving force from an imaging device and drive the developing roller to rotate. The photosensitive unit includes a photosensitive housing and a photosensitive drum rotatably mounted on the photosensitive housing, wherein the photosensitive housing includes a third side wall and a fourth side wall opposite to the third side wall. The processing box also includes a developing end cover mounted on the first side wall, wherein the developing end cover has a rotating shaft extending along the axial direction of the developing roller, and the third side wall has a circular hole matched with the rotating shaft. The third side wall has an L-shaped notch, and when the developing unit and the photosensitive unit are combined together, the first coupling member is located in the L-shaped notch; and the rotating shaft is located in the circular hole.

[0006] The processing box of the utility model is provided with an L-shaped notch on the side wall of the photosensitive drum shell to accommodate the coupling member of the developing unit and make the coupling member of the developing unit at least partially extend out of the side wall so as to facilitate coupling with the driving part of the imaging device. Compared with the prior art in which two through holes of different diameters are provided on the driving side covering component to extend the two coupling members to couple with the driving part of the imaging device, the processing box of the utility model is more convenient to assemble and is conducive to improving production efficiency.

[0007] In one embodiment, the second side wall and the fourth side wall are rotatably connected via a pin.

[0008] In one embodiment, the first side wall of the developing housing is provided with a supporting frame for supporting the developing roller.

[0009] In one embodiment, the first coupling member is rotatably mounted on the support frame.

[0010] In one embodiment, the process cartridge further comprises a second coupling member for receiving a driving force from an imaging device, wherein the second coupling member is mounted on an end portion of the photosensitive drum. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a three-dimensional diagram of a processing box of the utility model according to one embodiment.

[0012] Figure 2 yes Figure 1 A side view of the process cartridge is shown.

[0013] Figure 3 yes Figure 1 An exploded view of the process cartridge is shown.

[0014] Figure 4 yes Figure 3 A three-dimensional view of the support sleeve of the developing unit of the processing box is shown.

[0015] Figure 5 yes Figure 3 A partial enlarged view of the photosensitive unit of the process box shown in another angle.

[0016] Figure 6 yes Figure 1 An exploded view of the non-drive side of the process cartridge is shown. DETAILED DESCRIPTION

[0017] The structure and other aspects of the processing box of the present invention are further described in detail below through specific implementations and with reference to the accompanying drawings.

[0018] like Figures 1 to 3As shown, the processing box of the utility model includes a developing unit 1 and a photosensitive unit 2. The developing unit 1 includes a developing housing 11 and a developing roller 12, and the developing roller 12 is rotatably mounted on the developing housing 11. The developing housing 11 includes a first side wall 111 and a second side wall 112 opposite to the first side wall 211.

[0019] The developing unit 1 also includes a driving assembly 13. The processing box has a driving side and a non-driving side, the side where the driving assembly 13 is located is the driving side, and the other side opposite to the driving side is the non-driving side. The driving assembly 13 includes a coupling member 131 (first coupling member), a developing roller gear 132 and a powder feeding roller gear 133, and the coupling member 131 is used to receive a driving force from the imaging device. The developing roller gear 132 is mounted on the shaft end of the developing roller 12, and the powder feeding roller gear 133 is mounted on the shaft end of the powder feeding roller. The coupling member 131 has a gear portion, the gear portion is meshed with the powder feeding roller gear 133, and the powder feeding roller gear 133 is meshed with the developing roller gear 132 to transmit the driving force to the powder feeding roller and the developing roller.

[0020] In a preferred embodiment, the developing unit 1 includes a support frame 14, and one axial end of the developing roller 12 and the powder feeding roller is rotatably supported on the support frame 14. The coupling member 131 is also rotatably mounted on the support frame 14. The support frame 14 is fixed to the first side wall 111 of the developing housing 11.

[0021] like Figure 4 As shown, the developing unit 1 further includes a developing end cover 15, which has a through hole 151. After at least a portion of the coupling member 131 passes through the through hole 151, it is located on the other side of the developing end cover 15 so as to be coupled with the driving part of the imaging device. The developing end cover 15 is fixed to the support frame 14 by a fastener. The developing end cover 15 is provided with a rotating shaft 152, which serves as the rotation center of the developing unit 1 on the driving side. The rotating shaft 152 extends in the axial direction of the developing roller in a direction away from the developing housing 11.

[0022] like Figures 3 to 6 As shown, the photosensitive unit 2 includes a photosensitive housing 21 and a photosensitive drum 22, and the photosensitive drum 22 is rotatably mounted in the photosensitive housing 21. The photosensitive housing 21 includes a third side wall 211 and a fourth side wall 212 opposite to the third side wall 211. A coupling member 221 (a second coupling member) is mounted on the axial end of the photosensitive drum 22, and the coupling member 221 is used to receive a driving force from the imaging device to drive the photosensitive drum 22 to rotate. A bearing member 24 is mounted on the third side wall 211, and the coupling member 221 is rotatably supported on the bearing member 24.

[0023] In the present invention, the third side wall 211 has an L-shaped notch 211a and a circular hole 211b, and the notch 211a is used to accommodate the coupling member 131. When the developing unit 1 and the photosensitive unit 2 are assembled, the rotating shaft 152 of the developing end cover 15 extends into the circular hole 211b and can pivot in the circular hole 211b. At the same time, the coupling member 131 is located in the L-shaped notch 211a of the third side wall 211.

[0024] Preferably, the processing box of the utility model further includes an end cover 4 located on the non-driving side. On the non-driving side, the second side wall 112 of the developing housing 11 and the fourth side wall 212 of the photosensitive housing 21 are rotatably connected by a pin 3. The pin 2 serves as the non-driving side rotation center of the developing unit 1 and the photosensitive unit 2. In the utility model, the rotation center of the driving side and the rotation center of the non-driving side are not coaxial.

[0025] The processing box of the utility model is provided with an L-shaped notch on the side wall of the photosensitive drum shell to accommodate the coupling member of the developing unit and make the coupling member of the developing unit at least partially extend out of the side wall so as to facilitate coupling with the driving part of the imaging device. Compared with the prior art in which two through holes of different diameters are provided on the driving side covering component to extend the two coupling members to couple with the driving part of the imaging device, the processing box of the utility model is more convenient to assemble and is conducive to improving production efficiency.

[0026] The above embodiments are only used to illustrate the concept and scope of the utility model, and are not used to limit the protection scope of the utility model. Modifications, equivalent substitutions and other improvements to the above embodiments that are obvious to those skilled in the art are also within the concept of the utility model. The protection scope and concept of the utility model are specifically defined by the claims.

Claims

1. A process cartridge that can be detachably installed in an imaging device, the process cartridge comprising a developing unit and a photosensitive unit, characterized in that: The developing unit comprises a developing housing and a developing roller rotatably mounted on the developing housing, wherein the developing housing comprises a first side wall and a second side wall opposite to the first side wall; a first coupling member is rotatably mounted on the first side wall, and the first coupling member is used to receive a driving force from the imaging device and drive the developing roller to rotate; The photosensitive unit comprises a photosensitive housing and a photosensitive drum rotatably mounted on the photosensitive housing, wherein the photosensitive housing comprises a third side wall and a fourth side wall opposite to the third side wall; Wherein, the processing box further comprises a developing end cover mounted on the first side wall, the developing end cover is provided with a rotating shaft extending along the axial direction of the developing roller, and the third side wall is provided with a circular hole matched with the rotating shaft; The third side wall has an L-shaped notch. When the developing unit and the photosensitive unit are combined together, the first coupling member is located in the L-shaped notch; and the rotating shaft is located in the circular hole.

2. The process cartridge according to claim 1, wherein: The second side wall and the fourth side wall are rotatably connected by a pin.

3. The process cartridge according to claim 1, wherein: The first side wall of the developing housing is provided with a supporting frame for supporting the developing roller.

4. The process cartridge according to claim 3, wherein: The first coupling member is rotatably mounted on the supporting frame.

5. The process cartridge according to claim 1, wherein: The process cartridge further includes a second coupling member for receiving a driving force from an image forming device, the second coupling member being mounted on an end portion of the photosensitive drum.

6. The process cartridge according to claim 1, wherein: The developing end cover has a through hole, and at least a portion of the first coupling member passes through the through hole.

Images