Developing magnetic roller easy to assemble and disassemble

Abstract

The developing magnetic roller comprises a magnetic core, a first magnetic sleeve and a second magnetic sleeve, an installation cavity is formed in the upper end of the first magnetic sleeve, the second magnetic sleeve is installed in the installation cavity in an inserted mode, the magnetic core is arranged in the first magnetic sleeve and the second magnetic sleeve, a first connecting base is fixedly installed at the outer end of the first magnetic sleeve, and a second connecting base is fixedly installed at the outer end of the second magnetic sleeve. A second connecting seat is fixedly mounted at the outer end of the second magnetic sleeve, a threaded sleeve rotationally connected with the first connecting seat is arranged on the periphery of the first magnetic sleeve, the inner wall of the threaded sleeve is in threaded connection with the periphery of the second magnetic sleeve, and a first connecting shaft is fixedly mounted at the outer end of the first connecting seat; a limiting rotating seat is fixedly installed in the first connecting seat through a connecting rod, a positioning plate is arranged in the first connecting seat, and a threaded rod is fixedly installed at one end of the positioning plate, the magnetic core can be conveniently installed and disassembled in the magnetic sleeve, the assembling and disassembling difficulty is reduced, and the working efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of printing equipment, specifically to a developing magnetic roller that is easy to assemble and disassemble. Background Technology

[0002] During long-term use of printing equipment, the following situations may occur: 1. When the developing magnetic roller requires deep cleaning and maintenance to remove toner, paper scraps, and other impurities from inside the magnetic sleeve; 2. When the magnetic sleeve or magnetic core is damaged, severely worn, or its performance degraded, and its function cannot be restored through simple repairs; 3. When the printing equipment experiences problems such as decreased print quality, blurry images, or black lines, requiring inspection of the magnetic sleeve and magnetic core; in these cases, it is necessary to disassemble the magnetic sleeve and magnetic core inside the developing magnetic roller.

[0003] However, the existing connection between the magnetic sleeve and the magnetic core still uses a relatively traditional bolt and snap-fit ​​connection method. This requires the use of screwdrivers and tweezers to disassemble them. During the disassembly process, the force must be strictly controlled to avoid damaging the magnetic core or magnetic sleeve with the screwdriver and tweezers. This is obviously inconvenient and hinders the assembly and disassembly of the developing magnetic roller. Therefore, we propose an easy-to-assemble and disassemble developing magnetic roller. Utility Model Content

[0004] The purpose of this invention is to provide a developing magnetic roller that is easy to assemble and disassemble, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a developing magnetic roller that is easy to assemble and disassemble, comprising a magnetic core, a first magnetic sleeve, and a second magnetic sleeve. The first magnetic sleeve has an installation cavity at its upper end, and the second magnetic sleeve is inserted into the installation cavity. The magnetic core is disposed within the first and second magnetic sleeves. A first connecting seat is fixedly installed at the outer end of the first magnetic sleeve, and a second connecting seat is fixedly installed at the outer end of the second magnetic sleeve. A threaded sleeve is provided around the first magnetic sleeve and rotatably connected to the first connecting seat, and the inner wall of the threaded sleeve is threadedly connected to the outer periphery of the second magnetic sleeve. A first connecting shaft is fixedly installed at the outer end of the first connecting seat, and a second connecting shaft is fixedly installed at the outer end of the magnetic core. The second connecting shaft is disposed within the second connecting seat.

[0006] Preferably, a limiting rotating seat is fixedly installed in the first connecting seat by a connecting rod. The first connecting seat is provided with a positioning plate. A threaded rod is fixedly installed at one end of the positioning plate. The threaded rod is located in the limiting rotating seat. A threaded ring that is threadedly connected to the outer side of the threaded rod is rotatably installed in the limiting rotating seat.

[0007] Preferably, a limiting plate is fixedly installed on the inner wall of the first connecting seat by a fixing rod, a limiting cavity is fixedly installed at one end of the threaded rod, and the limiting plate is slidably installed in the limiting cavity.

[0008] Preferably, a limiting rotation hole is provided on the periphery of the first connecting seat, and a gear is rotatably installed in the limiting rotation hole. The periphery of the gear meshes with the periphery of the threaded ring. A toothed ring is rotatably installed on the periphery of the first connecting seat, and the inner wall of the toothed ring meshes with the periphery of the gear.

[0009] Preferably, a first positioning block is fixedly installed on the periphery of the first connecting seat, and a limiting rotation cavity is opened in the middle of the first positioning block, which communicates with the periphery of the limiting rotation hole. The toothed ring is rotatably installed in the limiting rotation cavity, and a second positioning block is fixedly installed on the periphery of the toothed ring. A positioning sleeve is inserted and installed on the periphery of the first positioning block and the second positioning block.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] This easy-to-assemble and disassemble developing magnetic roller is provided with a first magnetic sleeve and a second magnetic sleeve that are interlocked. The threaded connection between the threaded sleeve and the second magnetic sleeve allows the rotating threaded sleeve to contract or expand the first and second magnetic sleeves, thereby enabling the installation and disassembly of the magnetic core between them. This improves the efficiency of the developing magnetic roller assembly and disassembly and avoids damage to the magnetic core and magnetic sleeves.

[0012] This easy-to-assemble and disassemble developing magnetic roller uses the meshing connection between the toothed ring and the threaded ring, and the threaded connection between the threaded ring and the threaded rod, to allow the rotating toothed ring to adjust the position of the positioning plate. After the magnetic core is installed, it can be limited within the magnetic sleeve to prevent it from becoming loose. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the external structure of the magnetic sleeve and threaded sleeve of this utility model.

[0014] Figure 2 This is a schematic diagram of the internal disassembled structure of the magnetic sleeve and magnetic core of this utility model.

[0015] Figure 3 This is a schematic diagram of the external structure of the threaded sleeve of this utility model;

[0016] Figure 4 This is a schematic diagram of the internal structure of the first connecting seat and the positioning plate of this utility model;

[0017] Figure 5 This is a schematic diagram of the internal disassembled structure of the first connecting seat and the positioning plate of this utility model;

[0018] Figure 6 This is a schematic diagram of the internal structure of the first connecting seat of this utility model.

[0019] In the picture:

[0020] 1. Threaded sleeve; 10. First connecting shaft; 11. First connecting seat; 12. Second connecting seat; 13. First magnetic sleeve; 14. Second magnetic sleeve; 15. Mounting cavity;

[0021] 2. Magnetic core; 21. Second connecting shaft;

[0022] 3. Positioning plate; 31. Threaded rod; 32. Limiting cavity; 321. Fixing rod; 322. Limiting plate; 33. Threaded ring; 331. Limiting rotating seat; 34. Gear; 341. Limiting rotating hole; 35. Gear ring; 351. Limiting rotating cavity; 36. Positioning sleeve; 361. First positioning block; 362. Second positioning block; 363. Third positioning block. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-6 This utility model provides a technical solution: a developing magnetic roller that is easy to assemble and disassemble, including a magnetic core 2, a first magnetic sleeve 13, and a second magnetic sleeve 14. The upper end of the first magnetic sleeve 13 has an installation cavity 15, and the second magnetic sleeve 14 is inserted and installed in the installation cavity 15. The magnetic core 2 is disposed in the first magnetic sleeve 13 and the second magnetic sleeve 14. A first connecting seat 11 is fixedly installed on the outer end of the first magnetic sleeve 13, and a second connecting seat 12 is fixedly installed on the outer end of the second magnetic sleeve 14. A threaded sleeve 1 is provided on the periphery of the first magnetic sleeve 13 and is rotatably connected to the first connecting seat 11. The inner wall of the threaded sleeve 1 is threadedly connected to the periphery of the second magnetic sleeve 14. A first connecting shaft 10 is fixedly installed on the outer end of the first connecting seat 11, and a second connecting shaft 21 is fixedly installed on the outer end of the magnetic core 2. The second connecting shaft 21 is disposed in the second connecting seat 12.

[0025] Working principle: When installing the imaging magnetic roller, the threaded sleeve 1 is rotated around the first magnetic sleeve 13. The first magnetic sleeve 13 is connected to the mounting cavity 15 through an insertion connection. Under the restriction of the movement direction of the second magnetic sleeve 14, the rotating threaded sleeve 1 can drive the second magnetic sleeve 14 to move through the threaded connection between the first magnetic sleeve 13 and the second magnetic sleeve 14. This can expand the first magnetic sleeve 13 and the second magnetic sleeve 14. Then, through the mounting cavity 15, the magnetic core 2 can be installed into the second magnetic sleeve 14.

[0026] Reverse rotation of the threaded sleeve 1 can retract the first magnetic sleeve 13 and the second magnetic sleeve 14 to complete the installation of the developing magnetic roller. Conversely, rotating it in the opposite direction can remove the magnetic core 2 from the first magnetic sleeve 13 and the second magnetic sleeve 14 to complete the disassembly of the developing magnetic roller.

[0027] As a further description of the above technical solution: A limiting rotating seat 331 is fixedly installed inside the first connecting seat 11 via a connecting rod. A positioning plate 3 is provided inside the first connecting seat 11. A threaded rod 31 is fixedly installed at one end of the positioning plate 3. The threaded rod 31 is located inside the limiting rotating seat 331. A threaded ring 33, which is threadedly connected to the outer side of the threaded rod 31, is rotatably installed inside the limiting rotating seat 331. A limiting clamping plate 322 is fixedly installed on the inner wall of the first connecting seat 11 via a fixing rod 321. A limiting cavity 32 is fixedly installed at one end of the threaded rod 31. The limiting clamping plate 322 is slidably installed inside the limiting cavity 32. A limiting rotating hole 341 is opened on the outer side of the first connecting seat 11. A toothed object is rotatably installed inside the limiting rotating hole 341. The outer periphery of the gear 34 meshes with the outer periphery of the threaded ring 33, and the outer periphery of the first connecting seat 11 is rotatably mounted with a toothed ring 35, the inner wall of the toothed ring 35 meshing with the outer periphery of the gear 34; the outer periphery of the first connecting seat 11 is fixedly mounted with a first positioning block 361, the middle of the first positioning block 361 is provided with a limiting rotation cavity 351 that communicates with the outer periphery of the limiting rotation hole 341, the toothed ring 35 is rotatably mounted in the limiting rotation cavity 351, the outer periphery of the toothed ring 35 is fixedly mounted with a second positioning block 362, the outer periphery of the threaded sleeve 1 is fixedly mounted with a third positioning block 363, and the outer periphery of the first positioning block 361, the second positioning block 362, and the third positioning block 363 are inserted and mounted with positioning sleeves 36.

[0028] Specifically, after the magnetic core 2 is installed with the first magnetic sleeve 13 and the second magnetic sleeve 14, the toothed ring 35 can be rotated around the first connecting seat 11. Through the meshing connection between the gear 34 and the toothed ring 35 and the threaded ring 33, the threaded ring 33 can be driven to rotate within the limiting rotating seat 331.

[0029] With the limiting plate 322 restricting the movement direction of the threaded rod 31 through its insertion connection with the limiting cavity 32, the rotating threaded ring 33 can drive the positioning plate 3 to move through its threaded connection with the threaded rod 31, so that the positioning plate 3 contacts one end of the magnetic core 2, achieving the effect of limiting the magnetic core 2 within the first magnetic sleeve 13 and the second magnetic sleeve 14, preventing the magnetic core 2 from shifting within the first magnetic sleeve 13 and the second magnetic sleeve 14, thereby ensuring stable printing operation;

[0030] By connecting the positioning sleeve 36 with the first positioning block 361, the second positioning block 362 and the third positioning block 363, the positioning plate 3 can be positioned in the first connecting seat 11 to ensure the positioning effect of the magnetic core 2. The threaded sleeve 1 can also be positioned on one side of the first connecting seat 11 to ensure the connection effect between the first magnetic sleeve 13 and the second magnetic sleeve 14.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A removable developing magnetic roller comprising a magnetic core (2) and a first magnetic sleeve (13) and a second magnetic sleeve (14), characterized in that: The first magnetic sleeve (13) is provided with an installation cavity (15) at the upper end, the second magnetic sleeve (14) is inserted and installed in the installation cavity (15), the magnetic core (2) is arranged in the first magnetic sleeve (13) and the second magnetic sleeve (14), the first magnetic sleeve (13) is fixedly provided with a first connecting seat (11) at the outer end, the second magnetic sleeve (14) is fixedly provided with a second connecting seat (12) at the outer end, a threaded sleeve (1) is arranged on the periphery of the first magnetic sleeve (13) and is rotatably connected with the first connecting seat (11), and the inner wall of the threaded sleeve (1) is threadedly connected with the periphery of the second magnetic sleeve (14), the first connecting seat (11) is fixedly provided with a first connecting shaft (10) at the outer end, the magnetic core (2) is fixedly provided with a second connecting shaft (21) at the outer end, and the second connecting shaft (21) is arranged in the second connecting seat (12).

2. The magnetic roller according to claim 1, wherein: A limiting rotating seat (331) is fixedly installed in the first connecting seat (11) through a connecting rod, a positioning plate (3) is arranged in the first connecting seat (11), one end of the positioning plate (3) is fixedly provided with a threaded rod (31), the threaded rod (31) is arranged in the limiting rotating seat (331), and a threaded ring (33) is rotatably installed in the limiting rotating seat (331) and is threadedly connected with the periphery of the threaded rod (31).

3. The removable developing magnetic roller according to claim 2, wherein: A limiting clamping plate (322) is fixedly installed on the inner wall of the first connecting seat (11) through a fixed rod (321), one end of the threaded rod (31) is fixedly provided with a limiting insertion cavity (32), and the limiting clamping plate (322) is slidably installed in the limiting insertion cavity (32).

4. The removable developing magnetic roller as claimed in claim 3, wherein: A limiting rotating hole (341) is formed in the periphery of the first connecting seat (11), a gear (34) is rotatably installed in the limiting rotating hole (341), the periphery of the gear (34) is meshed with the periphery of the threaded ring (33), and a toothed ring (35) is rotatably installed on the periphery of the first connecting seat (11), and the inner wall of the toothed ring (35) is meshed and connected with the periphery of the gear (34).

5. The removable developing magnetic roller as claimed in claim 4, wherein: A first positioning insertion block (361) is fixedly installed on the periphery of the first connecting seat (11), a limiting rotating cavity (351) that is in communication with the periphery of the limiting rotating hole (341) is formed in the middle of the first positioning insertion block (361), the toothed ring (35) is rotatably installed in the limiting rotating cavity (351), a second positioning insertion block (362) is fixedly installed on the periphery of the toothed ring (35), a third positioning insertion block (363) is fixedly installed on the periphery of the threaded sleeve (1), and a positioning insertion sleeve (36) is inserted and installed on the periphery of the first positioning insertion block (361), the second positioning insertion block (362) and the third positioning insertion block (363).

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