Toner cartridge powder bin sealing structure with self-tearing and stirring functions

Abstract

The utility model provides a toner cartridge powder bin sealing structure with self-tearing and stirring functions. The toner cartridge powder bin sealing structure comprises a film sealing pad arranged on the inner side of a powder outlet of a powder bin; the stirring frame is arranged in the powder bin; the sealing film is connected between the film sealing pad and the stirring frame; a tearable connecting part and a positioning winding part are arranged at the two ends of the sealing film respectively, the tearable connecting part is fixed to the sealing film pad, the positioning winding part is fixedly connected with the stirring frame, and the width of a film body of the sealing film is larger than or equal to the width of a powder outlet of a powder bin. The breaking strength of the tearable connecting part is smaller than the driving torque of the stirring frame; and when the stirring frame rotates, the sealing film is stripped from the film sealing pad and then is wound on the surface of the stirring frame to form stirring blades. The utility model relates to the technical field of toner cartridges.

Description

Technical Field

[0001] This utility model relates to the field of toner cartridge technology, and in particular to a sealing structure for a toner cartridge with self-tear-off and stirring functions. Background Technology

[0002] Currently, toner cartridges generally use disposable plastic seals for sealing. This design has significant limitations. Traditional seals are rolls of plastic film fixed to the outer edge of the toner cartridge outlet via hot-melt welding or adhesive bonding, with the end extending outside the toner cartridge. Users must manually tear off the seal to open the outlet before use, and the removed seal is discarded. During this process, toner adhering to the seal surface easily diffuses into the air, not only contaminating the device surface but also potentially posing a health hazard if inhaled. Furthermore, the welding strength between the seal and the toner cartridge is affected by batch variations in materials. Weak welds can easily detach during transport, leading to toner leakage, while strong welds can cause difficulty in tearing or even film breakage, preventing the outlet from fully opening and directly impacting print quality. To overcome toner sedimentation, current technology requires additional welding of independent stirring blades (such as PET sheets) to the toner cartridge stirring rack. Although the industry has attempted to improve sealing reliability by modifying seal materials or optimizing welding processes, it has yet to break free from the traditional "disposable seal + independent stirring structure" model.

[0003] With the increasing demand for automation in printing equipment, the manual film-tearing operation method can no longer meet the user experience requirements. There is an urgent need for an integrated structure that can achieve sealing, self-tearing, and functional reuse, in order to simplify user operation, reduce environmental pollution, and improve the reliability of toner cartridges. Utility Model Content

[0004] To address the shortcomings of the existing technology, this utility model provides a toner cartridge sealing structure with self-tear and stirring functions, aiming to solve the problems of inconvenience, resource waste and environmental pollution caused by manually tearing off the sealing film in the existing toner cartridge sealing technology.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is: a sealing structure for a toner cartridge with self-tearing and stirring functions, comprising: a sealing film pad disposed inside the toner outlet of the toner cartridge; a stirring frame disposed inside the toner cartridge; a sealing film connecting the sealing film pad and the stirring frame; the sealing film has a tearable connecting portion and a positioning winding portion respectively disposed at both ends, the tearable connecting portion is fixed on the sealing film pad, the positioning winding portion is fixedly connected to the stirring frame, the width of the sealing film is greater than or equal to the width of the toner outlet of the toner cartridge, and the breaking strength of the tearable connecting portion is less than the driving torque of the stirring frame; when the stirring frame rotates, the sealing film peels off from the sealing film pad and wraps around the surface of the stirring frame to form stirring blades.

[0006] Based on the above, the beneficial effects of a toner cartridge sealing structure with self-tearing and stirring functions are that it solves the problems of inconvenience, resource waste, and environmental pollution caused by manual tearing of the sealing film in existing toner cartridge sealing technologies; mainly reflected in:

[0007] 1. This utility model uses a sealing pad and a sealing film connected to it, which are set inside the powder outlet of the powder hopper. When the stirring rack starts to rotate, the sealing film can be automatically peeled off from the sealing pad. The above structure avoids the trouble of manually tearing off the sealing film, simplifies the operation process, and improves the user experience.

[0008] 2. The sealing film of this utility model not only plays an initial sealing role, but can also be wrapped around the surface of the stirring rack during rotation to form effective stirring blades. This allows the sealing film, which was originally used only once, to be reused, reducing resource waste and minimizing the impact on the environment.

[0009] 3. The width of the sealing film of this utility model is greater than or equal to the width of the powder outlet of the powder hopper, which ensures good sealing performance. The breaking strength of the tearable joint is designed to be less than the driving torque of the stirring frame, which ensures that the sealing film can smoothly detach from the sealing film pad at the appropriate time without premature breakage or causing obstacles to use.

[0010] Furthermore, the tearable connection portion has a continuous discontinuous indentation line structure.

[0011] Based on the above, the beneficial effect of intermittent indentation lines is to precisely control the breaking strength of the tearable connection, ensuring that the mixing rack can be smoothly peeled off from the sealing gasket when it is pulled, without premature breakage or causing obstacles to use.

[0012] Furthermore, the sealing film is fixed to the inner wall of the powder hopper by an adhesive.

[0013] Furthermore, the sealing film is made of polyimide film.

[0014] Furthermore, the positioning winding part has a continuous positioning hole structure, which is adapted to a plurality of positioning posts preset on the stirring rack.

[0015] Based on the above, the beneficial effect of the positioning hole and positioning post is to ensure that the sealing film can be accurately wrapped around its surface during the rotation of the stirring frame, avoiding the problem of uneven winding or failure of the sealing film due to positional deviation, thereby ensuring the effectiveness and stability of the stirring blade formation.

[0016] Furthermore, the sealing film is provided with an opening structure that matches the powder outlet of the powder hopper, and the tearable connector is concealed within the opening structure.

[0017] Based on the above, the beneficial effect of precisely matching the opening structure on the sealing gasket with the toner outlet is to ensure the effectiveness of the initial seal of the toner cartridge opening, thereby effectively preventing toner leakage or external contamination when not in use, keeping the toner pure and dry, and ensuring print quality.

[0018] To more clearly illustrate the above-mentioned features of this utility model and the objectives it aims to achieve, the present utility model will be further described below in conjunction with the accompanying drawings and specific embodiments. Attached Figure Description

[0019] Figure 1 This is a cross-sectional schematic diagram of the present invention.

[0020] Figure 2 : This is a schematic diagram of the internal structure of this utility model.

[0021] Explanation of reference numerals: 1-Sealing gasket, 11-Open structure, 2-Tearable connection, 3-Sealing film, 4-Stirring rack, 41-Positioning column, 5-Positioning winding part. Detailed Implementation

[0022] like Figures 1-2 As shown, a toner cartridge sealing structure with self-tearable and stirring functions includes: a sealing film pad 1 disposed inside the toner outlet of the toner cartridge; a stirring frame 4 disposed inside the toner cartridge; a sealing film 3 connecting the sealing film pad 1 and the stirring frame 4; the sealing film 3 has a tearable connecting part 2 and a positioning winding part 5 respectively disposed at both ends, the tearable connecting part 2 is fixed on the sealing film pad 1, the positioning winding part 5 is fixedly connected to the stirring frame 4, the width of the sealing film 3 is greater than or equal to the width of the toner outlet of the toner cartridge, and the breaking strength of the tearable connecting part 2 is less than the driving torque of the stirring frame 4; when the stirring frame 4 rotates, the sealing film 3 peels off from the sealing film pad 1 and wraps around the surface of the stirring frame 4 to form stirring blades.

[0023] The tearable connection 2 has a continuous discontinuous indentation line structure.

[0024] The sealing pad 1 is fixed to the inner wall of the powder hopper by adhesive.

[0025] The sealing film 3 is made of polyimide film.

[0026] The positioning winding part 5 has a continuous positioning hole structure, which is adapted to the plurality of positioning posts 41 preset on the stirring frame 4.

[0027] The sealing pad 1 is provided with an opening structure 11 that matches the powder outlet of the powder hopper, and the tearable connector 2 is covered within the opening structure 11.

[0028] In summary, the specific embodiments of this utility model are as follows:

[0029] In the initial state, the sealing film 1 is fixed to the inner wall of the powder hopper with adhesive and has an opening structure 11 that matches the powder outlet of the powder hopper. The tearable connection 2 is covered inside the opening structure 11 to ensure that the powder hopper is completely sealed when not in use. One end of the sealing film 3 is connected to the tearable connection 2 on the sealing film 1, and the other end is fixedly connected to the stirring frame 4 through the positioning winding part 5. The positioning winding part 5 is a continuous positioning hole structure that is adapted to a number of positioning posts 41 preset on the stirring frame 4.

[0030] When the printer is started, the mixing rack 4 begins to rotate. Since the driving torque of the mixing rack 4 is greater than the breaking strength of the tearable connection 2, the sealing film 3 is automatically peeled off from the sealing film pad 1. As the mixing rack 4 continues to rotate, the sealing film 3 gradually detaches from the sealing film pad 1 and wraps around the surface of the mixing rack 4 along a predetermined path. The width of the sealing film 3 is greater than or equal to the width of the toner outlet of the toner hopper, ensuring that no toner leakage occurs during the peeling process.

[0031] Once the sealing film 3 is completely peeled off from the sealing film pad 1 and wrapped around the surface of the stirring frame 4, the sealing film 3 forms effective stirring blades. These stirring blades can effectively agitate the toner in the toner hopper, prevent toner sedimentation, and ensure uniform toner distribution. When the printer is in use, the stirring frame 4 drives the stirring blades formed by the sealing film 3 to continuously agitate the toner, ensuring the toner's fluidity and thus maintaining print quality.

[0032] The above description is only the optimal solution embodiment of this utility model and is not intended to limit this utility model. Various modifications or substitutions made by those skilled in the art to this utility model without departing from the essence and protection scope of this utility model should also be within the protection scope of this utility model.

Claims

1. A toner cartridge powder bin seal structure with self-tear-off and stirring functions, characterized in that, The application relates to a sealing film pad (1) arranged in the inner side of a powder outlet of a powder bin, a stirring frame (4) arranged in the powder bin, a sealing sealing film (3) connected between the sealing film pad (1) and the stirring frame (4), and a tearable connecting part (2) and a positioning winding part (5) arranged at two ends of the sealing sealing film (3) respectively. The application relates to a sealing film pad (1) arranged in the inner side of a powder outlet of a powder bin, a stirring frame (4) arranged in the powder bin, a sealing sealing film (3) connected between the sealing film pad (1) and the stirring frame (4), and a tearable connecting part (2) and a positioning winding part (5) arranged at two ends of the sealing sealing film (3) respectively. The tearable connecting part (2) is a continuous intermittent indentation line structure. The sealing film pad (1) is fixed to the inner wall of the powder bin through an adhesive. The material of the sealing sealing film (3) is a polyimide film.

2. The toner cartridge powder bin seal structure with self-tear-off and stirring function according to claim 1, characterized in that: The positioning winding part (5) is a continuous positioning hole structure and is matched with a plurality of positioning columns (41) prearranged on the stirring frame (4).

3. The toner cartridge powder bin seal structure with self-tear-off and stirring function according to claim 1, characterized in that: The sealing film pad (1) is provided with an opening structure (11) matched with the powder outlet of the powder bin, and the tearable connecting part (2) is shielded in the opening structure (11).

4. The toner cartridge powder bin seal structure with self-tear-off and stirring function according to claim 1, characterized in that: ​ 5. The toner cartridge powder bin seal structure with self-tear-off and stirring function according to claim 1, characterized in that: ​ 6. The toner cartridge powder bin seal structure with self-tear-off and stirring functions according to claim 1, characterized in that: ​

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