CN219202132U

CN219202132U - Printer heating roller

Info

Publication number: CN219202132U
Application number: CN202223246126.6U
Authority: CN
Inventors: 王清云; 辜克可
Original assignee: Boluo Zhenji Precision Hardware Electronic Products Co ltd
Current assignee: Boluo Zhenji Precision Hardware Electronic Products Co ltd
Priority date: 2022-12-05
Filing date: 2022-12-05
Publication date: 2023-06-16
Anticipated expiration: 2032-12-05

Abstract

The utility model discloses a printer heating roller, which comprises: the roller body and the two shaft bodies are respectively arranged at the geometric centers of the two ends of the roller body; the roller body is of a hollow cylindrical structure; the two end covers are arranged at two ends of the main body, and the two end covers are respectively correspondingly connected with the two shaft bodies, so that the two shaft bodies are indirectly connected to the geometric centers of the two end faces of the main body. The printer heating roller disclosed by the utility model adopts a hollow cylindrical structure as the roller body, and the two shaft bodies are connected to the two ends of the roller body, so that the printer heating roller can greatly reduce the production materials of the roller body and the weight of the roller body while ensuring the heat conduction efficiency and the structural strength; therefore, the printer heating roller is lighter and easy to install while the production cost of enterprises is effectively reduced; the roller body adopts a split type structure, so that the production and processing of the roller body are simpler and have higher yield.

Description

Printer heating roller

Technical Field

The utility model relates to the technical field of printer accessories, in particular to a printer heating roller.

Background

In an image forming apparatus such as a copier, a printer, or a facsimile, a fixing device heats/presses/fixes unfixed toner formed on a target object by an appropriate image forming process mechanism based on desired image information. The fixing device widely used adopts a two-roller structure, a nip portion is formed between the two rollers, a heating element is arranged in one of the rollers, and when paper passes through the nip portion, the heated roller heats and pressurizes the paper to fix the carbon powder on the paper. However, when the processing speed of such a fixing device is increased, there is a case where the unfixed toner image cannot be sufficiently heated, and an external heating type fixing device has been proposed to solve such a problem.

The external heating type fixing device is provided with a fixing roller, a heating unit and a pressurizing unit, wherein the heating unit is in pressure contact with the fixing roller to heat the fixing roller, the fixing roller is in pressure contact with the pressurizing unit to fix an unfixed image on a sheet, the heating unit is usually a heating belt, and the pressurizing unit can adopt a pressure roller or a pressure belt. Among them, the fixing roller is also called a heat roller, and although the heat roller does not heat itself in the above system, the heat of the heating unit can be conducted to the paper and the ink by high thermal conductivity.

The existing heating roller is generally formed by integrally forming three-fork aluminum tubes and inserting iron shafts at two ends, and the heating roller has higher production consumables, higher quality and higher production cost.

Disclosure of Invention

Based on the above, it is necessary to provide a printer heating roller aiming at the technical problems of high consumable materials, high quality and high production cost of the existing printer heating roller.

The printer heating roller comprises a roller body and two shaft bodies, wherein the two shaft bodies are respectively arranged at the geometric centers of two ends of the roller body.

The roller body is of a hollow cylindrical structure.

In one embodiment, the roller body includes a main body and two end caps, the two end caps are disposed at two ends of the main body, and the two end caps are respectively connected with the two shaft bodies correspondingly, so that the two shaft bodies are indirectly connected to the geometric centers of the two end faces of the main body.

In one embodiment, the main body is in a hollow cylindrical structure, and the two end covers are respectively embedded at two ends of the main body correspondingly, that is, the outer surface of the side wall of each end cover is connected with the inner side of the side wall of one corresponding end of the main body; one end of each shaft body is connected to the geometric center of the corresponding end cover.

In one embodiment, the main body has two mounting portions, the two mounting portions are disposed at two ends of the main body, and inner surfaces of side walls of the two mounting portions are correspondingly matched with outer surfaces of side walls of the end cover.

In one embodiment, when the end caps are mounted to the two ends of the main body, the outer surface of the sidewall of each end cap is correspondingly matched with the inner surface of the sidewall of the corresponding mounting portion, so that the two end caps are tightly connected to the two ends of the main body.

In one embodiment, each end cap has a connecting portion disposed at the geometric center of the corresponding end cap.

In one embodiment, each end cover further has a plurality of reinforcing portions, and the plurality of reinforcing portions are uniformly disposed on the outer surface of the sidewall of the connecting portion and extend to the inner side of the sidewall of the end cover.

In one embodiment, each shaft body is matched with the corresponding connecting portion, and the side surface of the corresponding shaft body is matched and connected with the inner surface of the side wall of the corresponding connecting portion.

In summary, the printer heating roller disclosed by the utility model adopts the hollow cylindrical structure as the roller body, and the two shaft bodies are connected to the two ends of the roller body, so that the printer heating roller can greatly reduce the production materials of the roller body and the weight of the roller body while ensuring the heat conduction efficiency and the structural strength. Therefore, the printer heating roller is lighter and easy to install while the production cost of enterprises is effectively reduced. The roller body adopts a split type structure, so that the production and processing of the roller body are simpler and have higher yield. And, split type roll body is easier to maintain, change and maintain.

Drawings

FIG. 1 is a schematic diagram of a printer heat roller in one embodiment;

FIG. 2 is a schematic diagram of a main structure of a heating roller of a printer according to an embodiment;

FIG. 3 is a schematic diagram of an end cap structure of a printer heat roller according to one embodiment;

FIG. 4 is a schematic diagram of an end cap structure of a printer heat roller in one embodiment.

Description of the embodiments

In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. The present utility model may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the utility model, whereby the utility model is not limited to the specific embodiments disclosed below.

In the description of the present utility model, it should be understood that the 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 orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

Referring to fig. 1, the utility model discloses a printer heating roller, which comprises a roller body 1 and two shaft bodies 2, wherein the two shaft bodies 2 are respectively arranged at the geometric centers of two ends of the roller body 1. Specifically, the roller body 1 is of a hollow cylindrical structure, so that the production materials of the roller body 1 are effectively reduced, and the production cost of enterprises is greatly reduced while the weight of the roller body 1 is reduced.

Referring to fig. 1 to 2, further, the roller 1 includes a main body 11 and two end caps 12, the two end caps 12 are disposed at two ends of the main body 11, and the two end caps 12 are respectively connected with the two shaft bodies 2 correspondingly, so that the two shaft bodies 2 are indirectly connected to the geometric centers of two end surfaces of the main body 11. In this embodiment, the roller body 1 adopts a split structure, so that the production and processing of the roller body 1 are simpler and have higher yield. In addition, the split roller body 1 is easier to maintain, replace and repair.

Specifically, the main body 11 is of a hollow cylindrical structure, so that the production consumption of the main body 11 is reduced, the weight of the main body 11 is reduced, the two end covers 12 are correspondingly embedded at two ends of the main body 11 respectively, namely, the outer surface of the side wall of each end cover 12 is connected with the inner side of the side wall of one end corresponding to the main body 11, so that the inner space of the main body 11 is sealed, the heat exchange between the inside and the outside of the roller body 1 is reduced, and when the printer heating roller is heated, the roller body 1 can better store heat, and the power consumption of the heating roller is reduced; one end of each shaft 2 is connected to the geometric center of the corresponding end cap 12, thereby enabling smoother rotation of the roller body 1.

Referring to fig. 1 to 2, further, the main body 11 has two mounting portions 111, the two mounting portions 111 are disposed at two ends of the main body 11, and inner surfaces of sidewalls of the two mounting portions 111 are correspondingly matched with outer surfaces of sidewalls of the end cover 12. Specifically, when the end caps 12 are mounted to the two ends of the main body 11, the outer surface of the sidewall of each end cap 12 is correspondingly matched with the inner surface of the sidewall of the corresponding mounting portion 111, so that the two end caps 12 are tightly connected to the two ends of the main body 11, thereby further improving the tightness of the inside of the roller body 1 and enhancing the structural stability of the roller body 1.

Referring to fig. 1 to 3, further, each end cap 12 has a connection portion 121, and the connection portion 121 is disposed at the geometric center of the corresponding end cap 12.

Referring to fig. 1 to 4, further, each end cover 12 further has a plurality of reinforcing portions 122, and the plurality of reinforcing portions 122 are uniformly disposed on the outer surface of the sidewall of the connecting portion 121 and extend to the inner side of the sidewall of the end cover 12, so as to effectively improve the structural strength of the end portion of the roller body 1.

Referring to fig. 1 to 4, specifically, each shaft 2 is matched with the corresponding connecting portion 121, and the side surface of the corresponding shaft 2 is matched and connected with the inner surface of the side wall of the corresponding connecting portion 121, so as to improve the connection stability between the two shafts 2 and the two ends of the roller 1.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims

1. A printer heating roller, comprising: the device comprises a roller body and two shaft bodies, wherein the two shaft bodies are respectively arranged at the geometric centers of two ends of the roller body;

the roller body is of a hollow cylindrical structure;

the roller body comprises a main body and two end covers, wherein the two end covers are arranged at two ends of the main body, and the two end covers are respectively and correspondingly connected with the two shaft bodies;

each end cover is provided with a connecting part, and the connecting parts are arranged at the geometric center of the corresponding end cover;

each end cover is also provided with a plurality of strengthening parts, and the strengthening parts are uniformly arranged on the outer surface of the side wall of the connecting part and extend to the inner side of the side wall of the end cover.

2. The printer heating roller according to claim 1, wherein the main body is of a hollow cylindrical structure, and the two end caps are respectively correspondingly embedded at two ends of the main body, that is, the outer surface of the side wall of each end cap is connected with the inner side of the side wall of the corresponding end of the main body.

3. The printer heater roller according to claim 2, wherein one end of each of the shafts is connected to a geometric center of the corresponding end cap.

4. The printer heating roller according to claim 1, wherein the main body has two mounting portions provided at both ends of the main body, and side wall inner surfaces of the two mounting portions are correspondingly fitted with side wall outer surfaces of the end caps.

5. The printer heating roller according to claim 4, wherein an outer surface of a side wall of each of the end caps is correspondingly fitted with an inner surface of a side wall of the corresponding mounting portion, so that both of the end caps are closely coupled to both ends of the main body.

6. The printer heating roller according to claim 5, wherein each of the shaft bodies is fitted with the corresponding connecting portion, and a side surface of the corresponding shaft body is fitted with an inner surface of a side wall of the corresponding connecting portion.