CN2440596Y

CN2440596Y - Fluorine silica gel roller of copier

Info

Publication number: CN2440596Y
Application number: CN 00254379
Authority: CN
Inventors: 刘淑秀
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-09-26
Filing date: 2000-09-26
Publication date: 2001-08-01
Anticipated expiration: 2010-09-26

Abstract

The utility model relates to a fluorine silica gel upper roll for a copier. The utility model is formed by that the outer part of an aluminum pipe is covered by a polytetrafluoro coating. The utility model is characterized in that the outer part of the polytetrafluoro coating is coated by a fluorine silica gel layer. The sum of the thickness of the polytetrafluoro coating and the thickness of the fluorine silica gel layer is equal to the thickness of a polytetrafluoro coating of an upper roll of an existing copier. The utility model has the advantages of long service life, no stuck powder, and still more admirable copying effect.

Description

Duplicator fluorine silica gel top roll

The utility model relates to the member of duplicator photographic fixing part, refers to the duplicator top roll especially.

See also shown in Figure 1, traditional duplicator top roll is formed by the poly-tetrafluoro emulsion of the outer spray of aluminum pipe 1 to have certain thickness poly-tetrafluoro coating 2 and forms, it is used with other accessory and reaches the effect of duplicating photographic fixing, and its shortcoming is that the life-span is short, and matter is measured can only duplicate about 100,000 at most, poor can only duplicate 10,000, easily crisp, easily draw and damage, sticking sometimes ink powder, make lettering unclear, influence photocopying effect.

In view of this, how to improve the shortcoming of existing duplicator top roll, prolonged its service life, thereby reduction use cost, and overcome sticking China ink and influence photocopying effect and more crisp shortcoming, from selecting material preferably for use and promptly being to be difficulty to be solved in the utility model place to the performance that the improvement of this body structure of top roll improves it.

Be that main purpose of the present utility model provides a kind of long service life, economical and practical, the not sticking good duplicator fluorine silica gel top roll of powder photocopying effect.

The purpose of this utility model is achieved in that a kind of duplicator fluorine silica gel top roll, covers poly-tetrafluoro coating outward by aluminum pipe and forms, and it is characterized in that: also be coated with one deck fluorine layer of silica gel outside described poly-tetrafluoro coating.

The thickness sum of described poly-tetrafluoro coating and fluorine layer of silica gel is equal to the poly-tetrafluoro coating of existing duplicator top roll.So be as good as with known duplicator top roll when using.

Because the utility model is to apply a fluorine layer of silica gel again outside the coat outside aluminum pipe, utilize fluorine silica gel to be better than the characteristic of poly-tetrafluoro rubber, make prolong the service life of whole top roll (using proof can duplicate 200,000 paper), and soft, be not afraid of and bump, be not afraid of and draw, not sticking ink powder, and then make photocopying effect clear, and it also has economical and practical advantage, its unit price is identical with common duplicator top roll, and the duplicator of all various models that need not hot scrape all can use.

Further describe the utility model below in conjunction with drawings and Examples.

Fig. 1 is the cut-away view for traditional duplicator top roll.

Fig. 2 is duplicator fluorine silica gel top roll cut-away view of the present utility model.

Referring to shown in Figure 2, a kind of duplicator fluorine of the utility model silica gel top roll, its structure is also mainly formed by covering poly-tetrafluoro coating 2 outside the aluminum pipe 1, institute's difference is, its poly-tetrafluoro coating 2 outer one deck fluorine layer of silica gel 3 that also are coated with, described poly-tetrafluoro coating 2 is equal to the poly-tetrafluoro coating of existing duplicator top roll with the thickness sum of fluorine layer of silica gel 3, so need not duplicator is done any change, promptly alternative known top roll uses.Because of its service life longer than traditional top roll, and price does not promote, thus relatively can reduce copy cost, for crowd altogether brings economically material benefit.

Claims

1, a kind of duplicator fluorine silica gel top roll is formed by covering poly-tetrafluoro coating (2) outside the aluminum pipe (1), it is characterized in that: also be coated with one deck fluorine layer of silica gel (3) outside described poly-tetrafluoro coating (2).

2, duplicator fluorine silica gel top roll according to claim 1 is characterized in that the described poly-tetrafluoro coating (2) and the thickness sum of fluorine layer of silica gel (3) are equal to the poly-tetrafluoro coating of existing duplicator top roll.