Integrated transmission head of selenium drum magnetic roller

Abstract

The utility model discloses an integrated transmission head of a selenium drum magnetic roller, which is used for being connected with the magnetic roller. The shaft head, the transmission gear, the positioning piece and the connecting piece are connected in sequence and are of an integrated structure. The maximum outer diameter of the positioning piece is larger than that of the magnetic roller, the transmission gear and the connecting piece, the connecting piece is connected with the magnetic roller in an inserted mode, and the positioning piece is attached to the end face of the magnetic roller for limiting. According to the structure, parts are reduced through integrated design, the mold manufacturing cost is reduced, the assembling procedure is simplified, and the production efficiency is improved. Meanwhile, matching errors of the gear and the driving shaft are eliminated, and the problem that the magnetic roller cannot rotate is solved. A traditional sheath is replaced by the positioning piece, the problems of printing abnormal sound, whitening and the like caused by deformation of the sheath wall are solved, a gap formed between the magnetic roller and the drum core can be isolated, and stable operation and printing quality of equipment are guaranteed.

Description

Technical Field

[0001] This utility model relates to the technical field of toner cartridge accessories, and in particular to an integrated drive head for a toner cartridge magnetic roller. Background Technology

[0002] In printers and copiers, magnetic rollers are used to attract toner and transfer it to the photosensitive drum to form an image. In mineral processing equipment, magnetic rollers can be used to attract magnetic minerals for mineral sorting. In these practical applications, magnetic rollers often need to rotate to perform their specific functions, which places high demands on the transmission structure of the magnetic rollers.

[0003] Existing magnetic roller drive structures are typically assembled from four components: a magnetic roller, a drive shaft, a gear, and a protective sleeve. For example, Chinese invention patent application CN109143813A discloses a specific assembly method: In actual use, the user inserts the transmission bracket into the left end of the magnetic roller body, then places the left protective sleeve onto the transmission bracket, and moves the left protective sleeve to the right until it is fully fitted onto the left end of the magnetic roller body. Simultaneously, the left protective sleeve moves to the right along the transmission bracket, thereby driving the transmission gear to fit through a slot into a flat post on the annular side of the transmission bracket. This achieves rapid installation, is simple to operate, and facilitates automated assembly.

[0004] However, this transmission structure has significant drawbacks. It comprises numerous components, including magnetic rollers, drive shafts, gears, and sheaths, resulting in a high number of parts. This leads to higher mold manufacturing costs, as each component requires a corresponding mold for production. Furthermore, the large number of parts complicates the assembly process, increasing labor and time costs and reducing assembly efficiency, thus hindering large-scale production.

[0005] Meanwhile, when there is an error in the engagement between the gear and the drive shaft, the gear will spin freely and fail to drive the drive shaft to rotate, causing the magnetic roller to fail to rotate and resulting in printing failure. Moreover, in the existing technology, the sheath is a separate part and is fitted onto the drive shaft. This design is prone to problems such as abnormal noise during rotation due to the sheath's thin wall thickness causing thermal expansion and deformation during continuous printing. Furthermore, the sheath's wall thickness is easily affected by variations, which can easily lead to printing defects such as whitening. Utility Model Content

[0006] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes an integrated drive head for a toner cartridge magnetic roller.

[0007] An integrated drive head for a toner cartridge magnetic roller designed for this purpose is characterized in that: the integrated drive head is used to connect with the magnetic roller;

[0008] The integrated transmission head includes a shaft head, a transmission gear, a positioning component, and a connecting component connected in sequence.

[0009] The maximum outer diameter of the positioning component is greater than the maximum outer diameter of the magnetic roller, transmission gear and connecting component;

[0010] The connector is inserted into the magnetic roller, and the positioning member is fitted and limited to the end face of the magnetic roller;

[0011] The shaft head, transmission gear, positioning component, and connecting component are an integral structure.

[0012] Preferably, the maximum outer diameter of the shaft head is less than the maximum outer diameter of the transmission gear.

[0013] Preferably, the integrated transmission head is hollow inside and has openings at both the left and right ends;

[0014] The connector has a conical structure and the outer diameter of the end near the magnetic roller is less than the outer diameter of the end away from the magnetic roller.

[0015] Compared with the prior art, the integrated drive head of this toner drum magnetic roller has significant advantages:

[0016] Reduced parts and costs: The shaft head, transmission gear, positioning parts and connecting parts adopt an integrated structure, eliminating the need to produce drive shafts, gears, protective sleeves and other parts separately. This reduces the number of parts, thereby reducing mold manufacturing costs and avoiding additional costs caused by mismatches between multiple parts.

[0017] Simplified assembly and improved efficiency: It eliminates the assembly process of multiple parts in the traditional structure. Assembly can be completed by simply connecting the connector to the magnetic roller and positioning the positioning part for limiting. This greatly simplifies the assembly process, reduces labor and time costs, and is conducive to large-scale production.

[0018] Enhanced transmission stability: The integrated structure eliminates the error problem of gear and drive shaft connection, avoids the situation where the magnetic roller cannot rotate due to gear free spin, ensures stable power transmission, and guarantees the normal operation of printing and other functions.

[0019] Improved Usage: No separate protective sleeve is needed. The positioning component replaces the protective sleeve, which fundamentally solves the problems caused by the wall thickness of traditional protective sleeves, such as thermal expansion and deformation, abnormal noise during rotation, and white printing. This improves the reliability and stability of the equipment.

[0020] Precise isolation and gap control: The positioning component has the largest outer diameter. Its main function is to fit with the drum core of the toner cartridge, effectively isolating the magnetic roller from the drum core and forming a stable gap between them. This avoids the impact of contact friction on equipment operation or a decrease in print quality, further ensuring the normal working performance of the toner cartridge. Attached Figure Description

[0021] Figure 1 This is one of the three-dimensional structural schematic diagrams of this utility model;

[0022] Figure 2 This is the second three-dimensional structural schematic diagram of the present invention;

[0023] Figure 3 This is the third three-dimensional structural schematic diagram of the present utility model;

[0024] Figure 4 This is a front structural diagram of the present invention;

[0025] Figure 5 This is a side view of the present invention. Detailed Implementation

[0026] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0028] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly indicating the number, specific order, or primary and secondary relationship of the indicated technical features.

[0029] In this document, the term "implementation" means that a specific feature, structure, or characteristic described in connection with an implementation may be included in at least one implementation of this application. The appearance of this phrase in various places in the specification does not necessarily refer to the same implementation, nor is it a separate or alternative implementation mutually exclusive with other implementations. It will be explicitly and implicitly understood by those skilled in the art that the implementations described herein can be combined with other implementations.

[0030] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0031] In the description of the embodiments of this application, the term "multiple" refers to two or more (including two), similarly, "multiple groups" refers to two or more (including two groups), and "multiple pieces" refers to two or more (including two pieces).

[0032] In the description of the embodiments of this application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0033] In the description of the embodiments of this application, unless otherwise explicitly specified and limited, the technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0034] See Figures 1-5 An integrated drive head 20 for a toner cartridge magnetic roller is disclosed. The integrated drive head 20 is used to connect with the magnetic roller 10. The integrated drive head 20 includes a shaft head 210, a transmission gear 220, a positioning member 230, and a connecting member 240 connected in sequence. The maximum outer diameter of the positioning member 230 is greater than the maximum outer diameter of the magnetic roller 10, the transmission gear 220, and the connecting member 240. The connecting member 240 is inserted into the magnetic roller 10, and the positioning member 230 is fitted and limited to the end face of the magnetic roller 10. The shaft head 210, the transmission gear 220, the positioning member 230, and the connecting member 240 are an integrated structure.

[0035] The working principle of the integrated drive head of the toner cartridge magnetic roller is as follows:

[0036] The integrated drive head assembles with the toner cartridge via a shaft, providing a stable support foundation for the overall structure and ensuring smooth rotation of the magnetic roller relative to the toner cartridge. External driving force acts directly on the transmission gear. Because the shaft, transmission gear, positioning components, and connecting components are an integrated structure, the driving force can be transmitted sequentially to the positioning components and connecting components without loss. The connecting component interlocks with the magnetic roller, driving it to rotate synchronously under the driving force, thus enabling the normal operation of the magnetic roller.

[0037] Meanwhile, because the maximum outer diameter of the positioning component is larger than that of the magnetic roller, transmission gear, and connecting components, it serves two purposes: firstly, it fits against the end face of the magnetic roller, providing axial restraint and preventing axial displacement during rotation; secondly, the positioning component fits against the drum core of the toner cartridge, effectively isolating the magnetic roller from the drum core and maintaining a stable gap between them, thus preventing contact friction from affecting equipment operation or print quality. This integrated structural design ensures the stability and reliability of power transmission, while the dual function of the positioning component ensures the positional accuracy and operational safety of the magnetic roller during operation.

[0038] See Figures 3 to 5 The maximum outer diameter of the shaft head 210 is less than the maximum outer diameter of the transmission gear 220. This design has multiple advantages: Firstly, as a component that inserts into the toner cartridge, the smaller outer diameter of the shaft head reduces the contact area with the toner cartridge mounting hole, lowers frictional resistance during assembly, and facilitates quick and smooth insertion of the shaft head into the toner cartridge, improving assembly convenience. Secondly, the transmission gear needs to cooperate with external driving force components (such as drive gears, transmission belts, etc.) to transmit power. A larger outer diameter allows it to form a more stable meshing or contact with external driving components, increasing the transmission contact area, reducing stress concentration during transmission, lowering the risk of slippage or wear, and ensuring the reliability of power transmission. At the same time, the size difference between the two avoids interference between the shaft head and the transmission gear during operation. The shaft head focuses on achieving rotational positioning with the toner cartridge, while the transmission gear focuses on power reception and transmission. The division of labor is clear and the spatial layout is more reasonable, further improving the compactness and operational stability of the integrated transmission head structure.

[0039] See Figures 3 to 5The integrated transmission head 20 is hollow inside and open at both ends. The connector 240 has a conical structure with an outer diameter closer to the magnetic roller 10 than the outer diameter further away from the magnetic roller 10. The hollow interior and open ends provide a channel for the installation of components such as conductive wires, facilitating the neat arrangement of internal wiring and improving the overall structure's cleanliness and safety. The conical structure of the connector, with its smaller outer diameter at the end closer to the magnetic roller than at the end further away, makes the interference fit between the connector and the magnetic roller easier to operate, utilizing the guiding effect of the conical surface to achieve rapid alignment and installation. Furthermore, as the insertion depth increases, the clamping force of the interference fit gradually increases, further enhancing the stability of the connection. Combined with the axial limiting of the positioning component, this effectively prevents loosening or shifting during transmission, ensuring efficient and reliable power transmission, while also guaranteeing the stability of the magnetic roller's rotation relative to the drum.

[0040] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An integrated drive head for a selenium drum magnetic roller, characterized by: The integrated transmission head (20) is used for connecting with a magnetic roller (10); The integrated transmission head (20) comprises a shaft head (210), a transmission gear (220), a positioning member (230) and a connecting member (240) connected in sequence; The maximum outer diameter of the positioning member (230) is greater than the maximum outer diameters of the magnetic roller (10), the transmission gear (220) and the connecting member (240); The connecting member (240) is inserted with the magnetic roller (10) and the end surface of the positioning member (230) is abutted with the end surface of the magnetic roller (10) for limiting; The shaft head (210), the transmission gear (220), the positioning member (230) and the connecting member (240) are integrated.

2. The one-piece drive roller of claim 1, wherein: The maximum outer diameter of the shaft head (210) is less than the maximum outer diameter of the transmission gear (220).

3. The one-piece drive roller of claim 1, wherein: The integrated transmission head (20) is internally hollow and is provided with openings at left and right ends; The connecting member (240) is in a conical structure and the outer diameter of the end close to the magnetic roller (10) is less than the outer diameter of the end away from the magnetic roller (10).

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