Quickly dismounting powder outlet knife

Abstract

The utility model relates to imaging equipment developing component technical field especially, a kind of quick dismounting powder outlet knife, including powder outlet knife, powder outlet knife both ends are provided with mounting hole, printer is provided with the installation plane that is connected with powder outlet knife, screw is fixed on installation plane by the mounting hole of powder outlet knife, powder outlet knife top plate bottom side is connected with fixed rod, sleeve is connected to the top surface of pressing plate, fixed rod is slidably connected in sleeve, reset spring is provided in sleeve, one end of reset spring is fixedly connected with pressing plate, the other end is fixedly connected with fixed rod, pressing plate is in contact with installation plane, when powder outlet knife is installed and screwed in screw, pressing plate and fixed rod extrude reset spring, powder outlet knife top is provided with the lifting assembly that it is convenient to pull out. Through the elastic cooperation of reset spring and fixed rod, sleeve, realize the automatic lifting function of powder outlet knife, make powder outlet knife both ends and installation plane form suspension space gap, significantly reduce the dismounting difficulty, reach the purpose of convenient dismounting.

Description

Technical Field

[0001] This utility model relates to the field of imaging equipment developing components, and in particular to a quick-release powder dispensing blade. Background Technology

[0002] The toner dispenser blade is a core component in imaging equipment used for precise control of toner supply. It is typically made of metal or high-strength engineering plastic and has a long, strip-shaped structure with evenly distributed toner dispensing holes or cutting edges on its surface. Working in conjunction with the toner hopper or developing roller, the toner dispenser blade achieves precise release and uniform application of toner, directly impacting print quality and the stability of equipment operation.

[0003] Currently, powder-discharging blades are typically mounted to the moving mechanism of the equipment via mechanical fastening. Specifically, the top of the blade body has a horizontally bent mounting plate, which is directly fastened to the mounting surface of the equipment by at least two screws. During installation, the screws are passed sequentially through the through holes on the mounting plate and screwed into the threaded holes on the mounting surface. The vertical pressure generated by the screws presses the mounting plate tightly against the mounting surface, thus achieving rigid fixation. Disassembly requires the reverse operation, loosening and removing all screws one by one.

[0004] However, even after the screws at both ends are completely removed, the bent part at the top of the powder dispensing blade remains tightly fitted to the mounting surface due to material elasticity or machining precision issues, resulting in no effective separation gap between the powder dispensing blade and the mounting surface. Operators must then manually pry it out by pinching the edge of the powder dispensing blade with their fingers or inserting their fingernails into the connection gap. This process is not only inefficient but also prone to deformation and surface scratches due to uneven force, and may even damage internal precision components due to operational errors. Especially in scenarios requiring frequent maintenance or replacement of the powder dispensing blade, the existing disassembly and assembly methods severely restrict the convenience and reliability of equipment maintenance. Utility Model Content

[0005] To overcome the drawbacks of difficult disassembly and assembly, this utility model provides a quick-disassembly and assembly powder dispensing blade, aiming to solve the aforementioned shortcomings.

[0006] A quick-release toner dispenser includes a toner dispenser with mounting holes at both ends. A mounting surface inside the printer mates with the toner dispenser. Screws secure the toner dispenser to the mounting surface through the mounting holes. A fixing rod is connected to the bottom side of the top plate of the toner dispenser. A sleeve is connected to the top surface of a pressure plate. The fixing rod is slidably connected inside the sleeve. A return spring is installed inside the sleeve. One end of the return spring is fixedly connected to the pressure plate, and the other end is fixedly connected to the fixing rod. The pressure plate contacts the mounting surface. When the toner dispenser is installed by screwing in the screws, the pressure plate and the fixing rod together compress the return spring. A lifting assembly is provided at the top of the toner dispenser for easy removal.

[0007] To further explain, the lifting assembly includes a pull plate, and the top of the powder dispensing knife has a placement groove. Rotating rods are rotatably connected to both ends of the placement groove, and the rotation shafts of the rotating rods are both located at their right ends. The two ends of the pull plate are respectively rotatably connected to the left ends of the two rotating rods, and the pull plate is located in the placement groove.

[0008] To further explain, a rubber pad is connected to the left end of the pull plate.

[0009] To further explain, the powder dispensing blade has a groove that is deeper than the placement groove, and the groove is located on the left side of the placement groove.

[0010] To further explain, a protective pad is connected to the bottom of the pressure plate.

[0011] To further explain, a telescopic pad is provided between the powder dispensing blade and the pressure plate, with the top of the telescopic pad connected to the powder dispensing blade and the bottom connected to the pressure plate.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. By using the elastic cooperation of the return spring, the fixing rod, and the sleeve, the automatic lifting function of the powder discharge knife is realized, so that the two ends of the powder discharge knife form a gap with the installation plane, which significantly reduces the difficulty of disassembly and achieves the purpose of convenient disassembly.

[0014] 2. By using the lifting component in conjunction with the hidden groove on the top of the powder blade, the operator can directly pull out the powder blade with one hand by applying force through the pull plate. This solves the problems of traditional technology requiring two hands or limited space, and ultimately adapts to the operation needs in narrow spaces. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0016] Figure 2 This is a sectional view of the installation structure of the reset spring and fixing rod of this utility model.

[0017] Figure 3 This is a schematic diagram of the installation structure of the rotating rod and the pull plate of this utility model.

[0018] Parts and their numbers in the diagram: 1_Powder discharge knife, 2_Mounting hole, 3_Fixing rod, 4_Pressure plate, 5_Sleeve, 6_Reset spring, 7_Placement groove, 8_Rotating rod, 9_Pull plate, 10_Rubber pad, 11_Groove, 12_Protective pad, 13_Telescopic pad. Detailed Implementation

[0019] Although this invention may be described with respect to a particular application or industry, those skilled in the art will recognize its broader applicability. Those skilled in the art will understand that terms such as "above," "below," "upward," "downward," etc., are used to describe the drawings and not to indicate a limitation on the scope of the invention as defined by the appended claims. Any numerical designations such as "first" or "second" are merely illustrative and not intended to limit the scope of the invention in any way.

[0020] Example: A quick-release powder dispensing blade, such as Figures 1-3 As shown, the device includes a powder dispensing blade 1, a fixing rod 3, a pressure plate 4, a sleeve 5, a return spring 6, and a lifting assembly. The powder dispensing blade 1 has mounting holes 2 at both ends. The printer has a mounting surface that mates with the powder dispensing blade 1. Screws fix the powder dispensing blade 1 to the mounting surface through the mounting holes 2. The fixing rod 3 is connected to the bottom side of the top plate of the powder dispensing blade 1. The sleeve 5 is connected to the top surface of the pressure plate 4. The fixing rod 3 is slidably connected inside the sleeve 5. The return spring 6 is installed inside the sleeve 5. One end of the return spring 6 is fixedly connected to the pressure plate 4, and the other end is fixedly connected to the fixing rod 3. The pressure plate 4 is in contact with the mounting surface. During installation, the screw presses down on the powder dispensing blade 1, the fixing rod 3 moves down along the sleeve 5 and compresses the return spring 6, and the pressure plate 4 is pressed tightly against the mounting surface by the spring's reaction force. The top of the powder dispensing blade 1 is provided with a lifting assembly for easy pulling out.

[0021] like Figure 1 and Figure 3 As shown, the lifting assembly includes a rotating rod 8 and a pull plate 9. The powder dispensing knife 1 has a placement groove 7 on its top. The rotating rod 8 is rotatably connected to both ends of the placement groove 7, and the rotating shaft of the rotating rod 8 is located at its right end. The two ends of the pull plate 9 are rotatably connected to the left ends of the two rotating rods 8 respectively, and the pull plate 9 is located in the placement groove 7. The linkage design between the pull plate 9 and the rotating rod 8 makes it possible to apply force with one hand, which is suitable for operation in narrow spaces.

[0022] like Figure 3 As shown, it also includes a rubber pad 10. The left end of the pull plate 9 is connected to the rubber pad 10 to enhance the friction when the fingers are pressed, and improve the convenience of one-handed operation.

[0023] like Figure 3 As shown, the powder dispensing knife 1 has a groove 11 that is deeper than the placement groove 7. The groove 11 is located on the left side of the placement groove 7, and the two are connected to form an operating space. The overlapping design of the groove 11 and the placement groove 7 provides storage space for the pull plate 9, while allowing fingers to be inserted for operation, taking into account both functionality and aesthetics.

[0024] like Figure 2 As shown, it also includes a protective pad 12, and the bottom of the pressure plate 4 is connected to the protective pad 12.

[0025] like Figure 1As shown, it also includes a telescopic pad 13. A telescopic pad 13 is provided between the powder dispensing knife 1 and the pressure plate 4. The top of the telescopic pad 13 is connected to the powder dispensing knife 1, and the bottom is connected to the pressure plate 4. This further buffers the pressure between the powder dispensing knife 1 and the pressure plate 4, seals the gap between the powder dispensing knife 1 and the pressure plate 4, and prevents carbon powder or other impurities from entering and affecting the fit between the fixing rod 3 and the sleeve 5.

[0026] When installing the powder dispensing blade 1, align the mounting holes 2 at both ends of the powder dispensing blade 1 with the fixing holes on the mounting surface. Use a screwdriver to pass the screws through the mounting holes 2 and screw them into the threaded holes on the mounting surface. As the screws are gradually tightened, the protective pad 12 at the bottom of the pressure plate 4 is elastically compressed due to pressure, producing an initial buffering effect. At the same time, the fixing rod 3 on the bottom side of the top plate of the powder dispensing blade 1 slides downward along the sleeve 5 on the top surface of the pressure plate 4, causing the pressure plate 4 and the fixing rod 3 to jointly compress the return spring 6 inside the sleeve 5. When the screws are fully tightened, both ends of the powder dispensing blade 1 are tightly fitted to the mounting surface, the return spring 6 is in the maximum compression state and stores elastic potential energy, and the telescopic pad 13 expands and contracts as the gap between the powder dispensing blade 1 and the pressure plate 4 changes. At this time, the rebound force of the spring is transmitted to the powder dispensing blade 1 through the fixing rod 3, so that its top and the screw end form a counterforce, further enhancing the tightness of the screw connection and preventing loosening due to vibration.

[0027] When disassembling the powder discharge blade 1, the operator uses a screwdriver to loosen the screws at both ends counterclockwise. As the screws gradually come out of the mounting surface, the return spring 6 inside the sleeve 5 begins to rebound due to the loss of axial clamping force, pushing the fixing rod 3 and causing the powder discharge blade 1 to move upward as a whole. At this time, the protective pad 12 at the bottom of the pressure plate 4 still maintains slight contact with the mounting surface, which plays a role in stabilizing the movement trajectory of the powder discharge blade 1. Under the action of spring force, the powder discharge blade 1 gradually detaches from the mounting surface. When the screws at both ends are completely removed, the two ends of the powder discharge blade 1 are in a suspended state, forming a clear gap with the mounting surface. The operator can directly lift the powder discharge blade 1 vertically upward without the need for prying tools, and the vertical removal method avoids collision between the powder discharge blade 1 and other components inside the equipment, effectively reducing the risk of component damage during the disassembly process.

[0028] If the operating space is limited or only one-handed operation is possible, the operator can insert their fingers into the groove 11 at the top of the powder discharge blade 1, with their fingertips pressing against the rubber pad 10 on the left side of the pull plate 9 and pulling it outwards. At this time, the rotating rods 8 at both ends of the pull plate 9 rotate upwards around their axis, causing the pull plate 9 to lift up from the placement groove 7, keeping the pull plate 9 parallel to the top surface of the powder discharge blade 1. Due to the length design of the rotating rods 8, sufficient operating space is formed between the pull plate 9 and the top surface of the powder discharge blade 1, allowing the operator to directly apply force through the pull plate 9 to pull out the powder discharge blade 1. After removing the material, release the pull plate 9, and the pull plate 9 will automatically fall back into the placement groove 7, restoring its initial hidden state.

[0029] Although the present invention has been described with reference to exemplary embodiments, it should be understood that the present invention is not limited to the disclosed exemplary embodiments. The scope of the following claims should be given the broadest interpretation in order to cover all variations and equivalent structures and functions.

Claims

1. A quick-release powder dispensing blade, characterized in that: The device includes a powder dispensing blade (1), which has mounting holes (2) at both ends. The printer has a mounting surface that mates with the powder dispensing blade (1). Screws are used to fix the powder dispensing blade (1) to the mounting surface through the mounting holes (2). A fixing rod (3) is connected to the bottom side of the top plate of the powder dispensing blade (1). A sleeve (5) is connected to the top surface of the pressure plate (4). The fixing rod (3) is slidably connected to the sleeve (5). A return spring (6) is provided inside the sleeve (5). One end of the return spring (6) is fixedly connected to the pressure plate (4), and the other end is fixedly connected to the fixing rod (3). The pressure plate (4) is in contact with the mounting surface. When the powder dispensing blade (1) is installed and screwed in, the pressure plate (4) and the fixing rod (3) together squeeze the return spring (6). The top of the powder dispensing blade (1) is provided with a lifting assembly to facilitate its pull-out.

2. A quick-release powder dispensing blade according to claim 1, characterized in that: The lifting assembly includes a pull plate (9), and the powder dispensing knife (1) has a placement groove (7) at the top. Rotating rods (8) are rotatably connected to both ends of the placement groove (7), and the rotating shafts of the rotating rods (8) are located at their right ends. The two ends of the pull plate (9) are rotatably connected to the left ends of the two rotating rods (8), and the pull plate (9) is located in the placement groove (7).

3. A quick-release powder dispensing blade according to claim 2, characterized in that: A rubber pad (10) is connected to the left end of the pull plate (9).

4. A quick-release powder dispensing blade according to claim 2, characterized in that: The powder dispensing blade (1) has a groove (11) that is deeper than the placement groove (7), and the groove (11) is located on the left side of the placement groove (7).

5. A quick-release powder dispensing blade according to claim 1, characterized in that: The bottom of the pressure plate (4) is connected to a protective pad (12).

6. A quick-release powder dispensing blade according to claim 5, characterized in that: A telescopic pad (13) is provided between the powder dispensing blade (1) and the pressure plate (4). The top of the telescopic pad (13) is connected to the powder dispensing blade (1), and the bottom is connected to the pressure plate (4).

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