Charging roller for transfer printing

Abstract

The utility model discloses a charging roller for transfer printing, which belongs to the field of charging rollers and comprises a roller body component, the roller body component comprises two first roller bodies, screw holes are formed in opposite surfaces of the two first roller bodies, screw rods are in threaded connection with the interiors of the screw holes, second roller bodies are rotatably connected to opposite surfaces of the two first roller bodies, and an end shaft is fixedly connected to one end of each second roller body. The side surface of the end shaft is sleeved with a buffer spring, one end of the buffer spring is fixedly connected with a limiting shaft, and the side surface of the first roller body and the side surface of the second roller body are both sleeved with transfer printing pipes. And meanwhile, through mutual cooperation of the structures, the buffering protection effect of the charging roller can be improved conveniently, the charging roller can be detached conveniently according to needs, and then the detaching and replacing convenience of all the components can be improved.

Description

Technical Field

[0001] The utility model relates to the field of charging rollers, in particular to a charging roller for transfer. Background Art

[0002] The charging roller is a new environmentally friendly charging method that reduces the production of ozone, and charges evenly and noiselessly. It is widely used in laser printers and is also used in low-speed copiers. The existing charging rollers are mostly fixed in length, which is not convenient for installation and use according to needs and printers of different sizes, thus affecting the versatility of the charging roller. Based on this, it is necessary to provide a charging roller that is easy to adjust the length of the charging roller and enhances its versatility. In addition, the existing charging roller is relatively inconvenient to disassemble, and the protective effect is not significant enough. Based on this, it is necessary to provide a charging roller that is easy to disassemble and can improve the protective effect. Utility Model Content

[0003] The embodiment of the utility model provides a transfer charging roller, which aims to solve the problem that the existing charging roller is not easy to adjust the size and length and is not easy to disassemble.

[0004] To achieve the above-mentioned purpose, the utility model provides a charging roller for transfer, comprising a roller assembly;

[0005] The roller assembly includes two first rollers with screw holes on their opposite surfaces, the internal threads of the screw holes are connected to screw rods, the opposite surfaces of the two first rollers are rotatably connected to the second rollers, one end of the second roller is fixedly connected to an end shaft, the side surface of the end shaft is sleeved with a buffer spring, one end of the buffer spring is fixedly connected to a limiting shaft, and the side surfaces of the first roller and the second roller are both sleeved with transfer tubes.

[0006] As a preferred solution of the present invention, a fixing groove is provided at one end of the second roller body, and one end of the second roller body is fixedly connected to the limiting edge.

[0007] As a preferred solution of the present invention, a bearing is installed inside the fixing groove, and one end of the first roller body is fixedly connected to a plug-in rod, and the plug-in rod is plugged into the inside of the bearing.

[0008] As a preferred solution of the present invention, a limiting hole is opened at one end of the limiting shaft, a plurality of limiting strips are fixedly connected to the side surface of the end shaft, and the end shaft and the plurality of limiting strips are inserted into the limiting hole.

[0009] As a preferred solution of the present invention, both the first roller body and the second roller body are made of stainless steel.

[0010] As a preferred solution of the present invention, the transfer tube is made of rubber.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] 1. When adjusting the length, the two first rollers are first controlled to rotate relative to each other, thereby controlling the two first rollers to rotate away from each other along the screw. At the same time, the bearings ensure that the first rollers rotate while preventing the second roller from rotating and affecting the transfer stability. By moving the two first rollers away from each other, the total length of the screw and the two first rollers can be adjusted. Compared with charging rollers in the prior art, the present invention facilitates adjustment of the charging roller length as needed through the cooperation of the above structures, facilitating use with printers of different sizes, thereby enhancing the versatility of the charging roller.

[0013] 2. When the charging roller is in use, the presence of the buffer spring and the limiting edge can provide buffering protection for the charging roller. When disassembling, it is only necessary to twist the first roller body to rotate and separate the screw rod from each other, and at the same time pull the limiting shaft out from the side surface of the end shaft to disassemble the charging roller. Compared with the charging roller in the prior art, the present invention can facilitate the disassembly of the charging roller through the cooperation of the above-mentioned structures, thereby providing convenience for the disassembly and replacement of various components. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 This is a disassembled diagram of the charging roller structure of the utility model;

[0016] Figure 3 This is a schematic diagram of the structure of the buffer spring of the utility model;

[0017] Figure 4 This is a schematic diagram of the transfer tube structure of the utility model.

[0018] In the figure: 100, roller assembly; 101, first roller; 102, screw hole; 103, screw rod; 104, second roller; 105, end shaft; 106, buffer spring; 107, limit shaft; 108, transfer tube; 111, fixing groove; 112, limit edge; 121, bearing; 122, plug-in rod; 131, limit hole; 132, limit strip. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] See also Figures 1-4 , the utility model provides a transfer charging roller, including a roller assembly 100;

[0021] Among them, the roller assembly 100 includes two first roller bodies 101, each of which has a screw hole 102 on its opposite surfaces, and the internal thread of the screw hole 102 is connected to a screw rod 103, and the opposite surfaces of the two first roller bodies 101 are rotatably connected to the second roller body 104, one end of the second roller body 104 is fixedly connected to an end shaft 105, and the side surface of the end shaft 105 is sleeved with a buffer spring 106, and one end of the buffer spring 106 is fixedly connected to a limiting shaft 107, and the side surfaces of the first roller body 101 and the second roller body 104 are both sleeved with a transfer tube 108.

[0022] In a specific embodiment, the roller assembly 100 is provided, which not only facilitates adjustment of the length of the charging roller to facilitate use with printers of different sizes, thereby enhancing the versatility of the charging roller, but also facilitates improved buffering and protection of the charging roller through the cooperation of the above-mentioned structures, and facilitates disassembly as needed, thereby improving the convenience of disassembly and replacement of various components. During use, the two first rollers 101 are first controlled to rotate relative to each other, thereby controlling the two first rollers 101 to rotate away from each other along the screw 103. Therefore, the total length of the screw 103 and the two first rollers 101 can be adjusted. Under the effect of the bearing 121, the first roller 101 can be ensured to rotate while preventing the second roller 104 from rotating and affecting the transfer stability. When the charging roller is in use, the presence of the buffer spring 106 and the limiting edge 112 can provide a buffering and protective effect. During disassembly, the first roller 101 is first twisted to rotate between the screw 103 for disassembly, and then the end shaft 105 is pulled out from the limiting shaft 107 to disassemble the charging roller, thereby providing convenience for replacement of various components.

[0023] See also Figure 2-Figure 4 A fixing groove 111 is formed at one end of the second roller body 104 , and one end of the second roller body 104 is fixedly connected to a limited edge 112 .

[0024] In a specific embodiment, the limiting edge 112 facilitates limiting the buffer spring 106 and improving the buffering performance.

[0025] See also Figure 2-Figure 4A bearing 121 is installed inside the fixing groove 111 , and a plug-in rod 122 is fixedly connected to one end of the first roller body 101 , and the plug-in rod 122 is plugged into the inside of the bearing 121 .

[0026] In a specific embodiment, the fixing groove 111 is used to install and protect the bearing 121. The plug rod 122 is inserted into the bearing 121 to prevent the second roller 104 from rotating when the first roller 101 rotates, thereby improving the transfer stability.

[0027] See also Figure 2-Figure 4 A limiting hole 131 is opened at one end of the limiting shaft 107 , and a plurality of limiting bars 132 are fixedly connected to the side surface of the end shaft 105 . The end shaft 105 and the plurality of limiting bars 132 are inserted into the interior of the limiting hole 131 .

[0028] In a specific embodiment, the limiting strip 132 is clamped inside the limiting hole 131 , and when the buffer spring 106 extends and retracts with the limiting shaft 107 , it can cooperate with the end shaft 105 to guide the limiting shaft 107 .

[0029] See also Figure 2-Figure 4 , the first roller body 101 and the second roller body 104 are both made of stainless steel.

[0030] In a specific embodiment, the first roller body 101 and the second roller body 104 made of stainless steel can achieve a conductive effect while avoiding rust, thereby extending the service life.

[0031] See also Figure 2-Figure 4 , the transfer tube 108 is made of rubber.

[0032] In a specific embodiment, the transfer tube 108 made of rubber can increase the friction between the transfer tube 108 and the printed part and avoid wear and tear, thereby enhancing practicality.

[0033] Working principle: When in use, first control the relative rotation of the two first rollers 101, so that the two first rollers 101 can be controlled to rotate along the screw 103 and move away from each other, and then the total length of the screw 103 and the two first rollers 101 can be adjusted. Under the effect of the bearing 121, it can ensure that the first roller 101 rotates while avoiding the rotation of the second roller 104 affecting the transfer stability. When the charging roller is in use, the presence of the buffer spring 106 and the limiting edge 112 can play a buffering and protective role. When disassembling, first twist the first roller 101 to rotate and disassemble it between the screw 103, and then pull the end shaft 105 out of the limiting shaft 107 to disassemble the charging roller, thereby providing convenience for the replacement of various components.

[0034] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0035] Although the 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 variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A charging roller for transfer, characterized in that: include: A roller assembly (100) comprises two first rollers (101) whose opposite surfaces are provided with screw holes (102), the internal threads of the screw holes (102) are connected to screw rods (103), the opposite surfaces of the two first rollers (101) are rotatably connected to second rollers (104), one end of the second roller (104) is fixedly connected to an end shaft (105), the side surface of the end shaft (105) is sleeved with a buffer spring (106), one end of the buffer spring (106) is fixedly connected to a limiting shaft (107), and the side surfaces of the first roller (101) and the second roller (104) are both sleeved with transfer tubes (108).

2. The transfer charging roller according to claim 1, wherein: One end of the second roller body (104) is provided with a fixing groove (111), and one end of the second roller body (104) is fixedly connected to a limiting edge (112).

3. The charging roller for transfer according to claim 2, wherein: A bearing (121) is installed inside the fixing groove (111), and one end of the first roller body (101) is fixedly connected to a plug-in rod (122), and the plug-in rod (122) is plugged into the inside of the bearing (121).

4. The transfer charging roller according to claim 1, wherein: A limiting hole (131) is provided at one end of the limiting shaft (107), and a plurality of limiting strips (132) are fixedly connected to the side surface of the end shaft (105). The end shaft (105) and the plurality of limiting strips (132) are both inserted into the limiting hole (131).

5. The transfer charging roller according to claim 1, wherein: The first roller body (101) and the second roller body (104) are both made of stainless steel.

6. The transfer charging roller according to claim 1, wherein: The transfer tube (108) is made of rubber.

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