Durable fuser tension roller

Abstract

The utility model relates to the technical field of printers, in particular to a durable fuser tension roller which comprises a tension roller body, two ends of the tension roller body are connected with a rotating shaft, the rotating shaft is provided with a heat insulation sleeve and a gasket, the tail end of the rotating shaft is connected with a mounting seat, and the mounting seat is provided with a bearing. According to the durable type fuser tension roller, heat transfer between the tension roller body and the rotating shaft is reduced through the heat insulation sleeve, bearing heating is reduced, meanwhile, the bearing and the rotating shaft are separated through the gasket, friction heating of the rotating shaft is reduced, the heat insulation sleeve is in bolted connection and convenient to replace, and therefore the service life of the tension roller body is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of printer technology, specifically to a durable fuser tension roller. Background Technology

[0002] The fuser is the main device in a printer that fixes printed toner images. The tension roller is an important component of the fuser. The tension roller can maintain the stability of the paper and prevent problems such as twisting, stretching, and shrinking of the paper during copying and printing, thereby ensuring print quality.

[0003] Currently, fuser tension rollers are usually directly connected to bearings. Tension rollers are prone to overheating during use. The heat is transferred along the tension roller body to the rotating shaft, which causes high-temperature friction loss between the rotating shaft and the bearing, reducing the service life of the fuser tension roller.

[0004] To address the aforementioned issues, we have made improvements by proposing a durable fuser tension roller. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] This utility model provides a durable fuser tension roller, including a tension roller body, with rotating shafts connected to both ends of the tension roller body. The rotating shafts are provided with heat insulation sleeves and gaskets, and a mounting base is connected to the end of the rotating shafts. The mounting base is provided with a bearing.

[0007] As a preferred technical solution of this utility model, the heat insulation sleeve is made of integrally molded rubber material, the heat insulation sleeve is wrapped in a ring around the outer surface of the rotating shaft, and a vertical reserved groove is opened in the middle of the heat insulation sleeve.

[0008] As a preferred technical solution of this utility model, the surface of the heat insulation sleeve is provided with reserved holes, which are located on both sides of the reserved groove. The reserved holes are threaded with fixing bolts, which pass through both ends of the heat insulation sleeve.

[0009] As a preferred embodiment of this utility model, the surface of the mounting base is provided with a through hole, the bearing is fixedly installed on the inner surface of the through hole, the two rotating shafts are respectively coaxially fixedly connected to both ends of the tension roller body, and the two rotating shafts respectively pass through the bearing outward.

[0010] As a preferred embodiment of this utility model, the gasket is sleeved on the outer surface of the rotating shaft, and the gasket passes through the bearing from bottom to top. The width of the top end of the gasket is greater than the inner diameter of the bearing. A fixing member is connected to the outer surface of the mounting base, and the fixing member is coaxially and fixedly connected to the rotating shaft.

[0011] As a preferred embodiment of this utility model, a base plate is fixedly connected between the two mounting bases.

[0012] The beneficial effects of this utility model are: this durable fuser tension roller reduces heat transfer between the tension roller body and the rotating shaft through the heat insulation sleeve, reducing bearing heating. At the same time, the bearing is separated from the rotating shaft by the gasket, reducing frictional heating of the rotating shaft. In addition, the heat insulation sleeve is bolted, which is easy to replace, thereby extending the service life of the tension roller body. Attached Figure Description

[0013] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

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

[0015] Figure 2 This is an enlarged structural diagram of point A of this utility model;

[0016] Figure 3 This is an enlarged structural diagram of point B of this utility model;

[0017] In the diagram: 1. Tension roller body; 2. Mounting base; 3. Base plate; 4. Rotary shaft; 5. Heat insulation sleeve; 6. Reserved hole; 7. Fixing bolt; 8. Gasket; 9. Bearing; 10. Fixing component; 11. Reserved groove. Detailed Implementation

[0018] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0019] Example: Figure 1-3 As shown, a durable fuser tension roller includes a tension roller body 1, with a rotating shaft 4 connected to both ends of the tension roller body 1. The rotating shaft 4 is provided with a heat insulation sleeve 5 and a gasket 8. The end of the rotating shaft 4 is connected to a mounting base 2, and the mounting base 2 is provided with a bearing 9.

[0020] The heat insulation sleeve 5 is made of one-piece molded rubber material. The heat insulation sleeve 5 is wrapped in a ring around the outer surface of the rotating shaft 4. A vertical reserved groove 11 is opened in the middle of the heat insulation sleeve 5. Since the heat insulation sleeve 5 is made of relatively soft material, the heat insulation sleeve 5 can be pried open through the reserved groove 11 and installed from the side of the rotating shaft 4. Disassembly is relatively convenient and easy to replace the heat insulation sleeve 5.

[0021] The surface of the heat insulation sleeve 5 is provided with reserved holes 6, which are located on both sides of the reserved groove 11. The reserved holes 6 are threaded with fixing bolts 7 inside the reserved holes 6. The fixing bolts 7 pass through both ends of the heat insulation sleeve 5. After the heat insulation sleeve 5 is put on the rotating shaft 4, the fixing bolts 7 are screwed in from one end of the reserved hole 6 until their ends pass out from the other end of the reserved hole 6, so as to prevent the heat insulation sleeve 5 from falling off during use. The heat insulation sleeve 5 can reduce the heat transfer to the rotating shaft 4 during the heating process of the solid tension roller body 1, and extend the overall service life of the tension roller.

[0022] The surface of the mounting base 2 is provided with through holes, and the bearing 9 is fixedly installed on the inner surface of the through holes. The two rotating shafts 4 are coaxially fixedly connected to both ends of the tension roller body 1, and the two rotating shafts 4 pass through the bearing 9 outwards.

[0023] The gasket 8 is fitted onto the outer surface of the rotating shaft 4 and extends through the bearing 9 from bottom to top. The width of the top end of the gasket 8 is greater than the inner diameter of the bearing 9 to prevent the gasket 8 from shifting up and down when the rotating shaft 4 rotates. The gasket 8 can also separate the gasket 8 from the rotating shaft 4. The inside of the gasket 8 is coated with grease to reduce the friction between the rotating shaft 4 and the bearing 9. The outer surface of the mounting base 2 is connected to a fixing member 10, which is coaxially fixed to the rotating shaft 4 to prevent the rotating shaft 4 from falling off.

[0024] A base plate 3 is fixedly connected between the two mounting bases 2, so that the tension roller body 1 can rotate without being disturbed by other components inside the printer.

[0025] Working principle: In use, the heat insulation sleeve 5 can be pried open through the reserved slot 11 and installed from the side of the rotating shaft 4, which also facilitates the replacement of the heat insulation sleeve 5. During the heating process of the solid tension roller body 1, the heat insulation sleeve 5 can reduce the heat transfer to the rotating shaft 4, thus extending the overall service life of the tension roller. After the heat insulation sleeve 5 is put on the rotating shaft 4, the fixing bolt 7 is screwed into one end of the reserved hole 6 and out the other end of the reserved hole 6 to prevent the heat insulation sleeve 5 from falling off during use. The gasket 8 can separate the gasket 8 from the rotating shaft 4. The inside of the gasket 8 is coated with grease to reduce the friction between the rotating shaft 4 and the bearing 9.

[0026] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A durable fuser tension roller, comprising a tension roller body (1), characterized in that, The tension roller body (1) is connected to two ends of a rotating shaft (4). The rotating shaft (4) is provided with a heat insulation sleeve (5) and a gasket (8). The end of the rotating shaft (4) is connected to a mounting base (2). The mounting base (2) is provided with a bearing (9).

2. The durable fuser tension roller according to claim 1, characterized in that, The heat insulation sleeve (5) is made of one-piece molded rubber material. The heat insulation sleeve (5) is wrapped in a ring around the outer surface of the rotating shaft (4). A vertical reserved groove (11) is opened in the middle of the heat insulation sleeve (5).

3. A durable fuser tension roller according to claim 2, characterized in that, The surface of the heat insulation sleeve (5) is provided with a reserved hole (6), which is located on both sides of the reserved groove (11). The reserved hole (6) is threaded with a fixing bolt (7) inside, which passes through both ends of the heat insulation sleeve (5).

4. A durable fuser tension roller according to claim 1, characterized in that, The surface of the mounting base (2) is provided with a through hole, the bearing (9) is fixedly installed on the inner surface of the through hole, and the two rotating shafts (4) are coaxially fixedly connected to both ends of the tension roller body (1), and the two rotating shafts (4) pass through the bearing (9) outward.

5. A durable fuser tension roller according to claim 1, characterized in that, The gasket (8) is fitted onto the outer surface of the rotating shaft (4), and the gasket (8) passes through the bearing (9) from bottom to top. The width of the top end of the gasket (8) is greater than the inner diameter of the bearing (9). The outer surface of the mounting base (2) is connected to a fixing member (10), and the fixing member (10) is coaxially fixedly connected to the rotating shaft (4).

6. A durable fuser tension roller according to claim 1, characterized in that, A base plate (3) is fixedly connected between the two mounting bases (2).

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