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Heating device

A technology of heating device and object to be heated, applied in lighting and heating equipment, electrography, optics, etc., can solve the problems of thermal deformation of resin layer 3, incorrect mechanical dimensions, deviation of heating temperature, etc., so as to improve heating stability. performance, improve production efficiency, and improve heating efficiency

Inactive Publication Date: 2009-06-10
RICOH KK
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, such a charging roller 1 has a resin layer 3 between the metal core 2 and the surface part 4, and the resin layer 3 may be thermally deformed by heating the surface part 4, or cause a change in residual stress inside the resin layer 3, resulting in a dimensional change, There is a problem of flatness deterioration
[0008] In the past, in order to heat the surface layer 4 of the charging roller 1 as the object to be heated, a convection heating device such as a hot air heating furnace was used. Due to different positions in the furnace, the heating temperature varied, and not only the resin layer 3 but also the metal core 2 is also heated for a long time, the surface of the charging roller 1 is deteriorated, and the problem of incorrect mechanical dimensions is prone to occur

Method used

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Embodiment Construction

[0066] Hereinafter, the embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following embodiments, although various limitations are made to the constituent elements, types, combinations, shapes, relative arrangements, etc., these are merely examples, and the present invention is not intended to limited to this.

[0067] image 3 is a schematic appearance diagram of the heating device according to the present invention, in image 3 Among them, 10 represents the device body, and the device body 10 is as Figure 4 , Figure 5 As shown, a lower loading plate 11, an intermediate loading plate 12, and an upper loading plate 13 are provided.

[0068] Between the lower loading plate 11 and the middle loading plate 12, a cover plate 14 is provided to cover these loading plates from the side, and between the middle loading plate 12 and the upper loading plate 13, a cover plate 14 is provided to cover these loading plate...

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Abstract

To provide a heating device capable of hardening only surface parts of objects to be heated by heating selectively at a uniform temperature in a short period of time. This heating device is equipped with a heating means 20, provided to face the plurality of objects 1 to be heated, for radiating infrared ray to the objects 1 to be heated, a temperature measurement / temperature adjustment means for adjusting temperature of the heating means 20, a plurality of holding fixtures 25 for aligning and holding the plurality of objects 1 to be heated respectively and for holding the plurality of objects 1 to be heated while rotating, a transportation means 18 for transporting the objects 1 to be heated along the heating means 20 while pulling the plurality of holding fixtures 25 and a cooling means for cooling the objects 1 to be heated.

Description

technical field [0001] The present invention relates to a heating device using far infrared rays. Background technique [0002] Conventionally, a heating device for heating using far-infrared rays is known. For example, Japanese Unexamined Patent Publication No. 07-159768 (hereinafter abbreviated as "Patent Document 1") discloses such a heating device provided with a mechanism for vertically moving an object to be heated. [0003] For example, JP-A-11-172026 (hereinafter abbreviated as "Patent Document 2") discloses a heating device that inverts an object to be heated and heats it. [0004] The heating device can be used to heat, for example, a charging roller (cylindrical shape) of a developing section of an electrophotographic image forming apparatus. Such a charging roller such as figure 1 As shown, in this charging roller 1, a conductive resin layer 3 is formed on the outer periphery of a cylindrical metal core 2, and a surface layer portion 4 is formed on the outer p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G03G15/20G03G21/20F27B9/30
Inventor 谷立
Owner RICOH KK
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