一种硒鼓碳粉仓密封结构

Abstract

本实用新型涉及一种硒鼓碳粉仓密封结构，包括基体、控制片及显影辊，基体设置有中空的碳粉仓，基体前侧开设有与碳粉仓连通的开口，控制片设置在基体前侧的顶部并具向下延伸至开口前侧的胶片，显影辊能转动地设于胶片之前，还包括设于基体前侧端部处的毛毡海绵件，毛毡海绵件被位于其中部且上下延伸的切缝分隔为左右布置的第一部分、第二部分，第一部分与胶片后表面接触配合，第二部分与显影辊的后表面接触配合。在毛毡海绵件的中部通过切缝分隔出第一部分、第二部分，第一部分与胶片后表面接触配合形成阻挡碳粉的第一道防线，第二部分与显影辊的后表面接触配合形成阻挡碳粉的第二道防线，起到了较好的密封作用，避免碳粉外泄。

Claims

1. A sealing structure for a toner cartridge, comprising a substrate (1), a control plate (2), and a developing roller (3), wherein the substrate (1) is provided with a hollow toner cartridge (11), and an opening (12) communicating with the toner cartridge (11) is provided on the front side of the substrate (1), the control plate (2) is disposed on the top of the front side of the substrate (1) and has a film (21) extending downward to the front side of the opening (12), and the developing roller (3) is rotatably disposed in front of the film (21), characterized in that: It also includes a felt sponge (4) located at the front end of the substrate (1). The felt sponge (4) is divided into a first part (41) and a second part (42) arranged left and right by a slit (40) located in the middle and extending vertically. The first part (41) contacts and engages with the rear surface of the film (21), and the second part (42) contacts and engages with the rear surface of the developing roller (3).

2. The toner cartridge powder tank seal structure of claim 1, wherein: The substrate (1) has a rearwardly recessed arc-shaped mounting surface (16) that matches the outer peripheral surface of the developing roller (3) at its front end. The felt sponge (4) is formed into an arc-shaped structure that matches the outer peripheral surface of the developing roller (3) and is attached to the front side of the arc-shaped mounting surface (16).

3. The toner cartridge powder tank seal structure of claim 2, wherein: The arc-shaped mounting surface is provided with a hollow structure that provides space for the rearward deformation of the first part (41) and / or the second part (42).

4. The toner cartridge powder tank seal structure of claim 3, wherein: The hollow structure includes multiple grooves (13) arranged at intervals from top to bottom on the arc-shaped mounting surface, and the cuts (40) are arranged corresponding to the grooves (13).

5. The toner cartridge powder tank seal structure of claim 2, wherein: The substrate (1) is provided with a slot (15) extending upward from the arc-shaped mounting surface (16), and the upper end of the felt sponge (4) extends upward to form a limiting part (43) that can be locked in the slot (15).

6. The toner cartridge powder tank seal structure of claim 2, wherein: The lower end of the felt sponge part (4) extends forward to form a lower sealing part located below the developing roller (3) and in contact with its lower surface.

7. The toner cartridge powder tank seal structure according to any one of claims 1 to 6, characterized in that: The control sheet (2) includes a sheet metal sheet (22) with an L-shaped cross-section that covers the front side of the substrate (1). The film (21) is connected to the lower edge of the sheet metal sheet (22). The upper end of the felt sponge (4) is pressed onto the substrate (1) by the sheet metal sheet (22).

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