CN213675851U

CN213675851U - Prevent sealed felt of wrinkling

Info

Publication number: CN213675851U
Application number: CN202022218630.XU
Authority: CN
Inventors: 欧阳武; 梁永; 梁棣穗
Original assignee: Huiwei Corp
Current assignee: Huiwei Corp
Priority date: 2020-09-30
Filing date: 2020-09-30
Publication date: 2021-07-13
Anticipated expiration: 2030-09-30

Abstract

The utility model discloses a prevent sealed felt of wrinkling, including felt, sponge and PET membrane, a surface of sponge after the rubber coating with the one side laminating of PET membrane, a surface of felt laminate after the rubber coating in on the another side of PET membrane, promptly the PET membrane is located between sponge and the felt. Through set up a slice PET membrane between felt and the sponge, the tension of PET membrane self has compensated when sealed felt pastes on convex felt platform, because the glue film receives the crooked condition that upper and lower surface received different tension to lose efficacy easily, and the laminating effect is better, has effectively solved sealed felt and has produced the fold at the cartridge during operation or after working a period, and then has caused the sealed bad problem of cartridge.

Description

Prevent sealed felt of wrinkling

All as the field of technology

The utility model relates to a sealing member field, concretely relates to prevent sealed felt of wrinkling.

All the above-mentioned background techniques

A toner cartridge for a printer, also called a process cartridge, is a common printing consumable used in image output devices such as printers and copiers. The carbon powder box consists of a powder bin cover, a powder bin, a stirring frame, a felt, a sponge, a scraping blade and other various plastic parts and sealing parts. The sealed felt in the present cartridge is formed by laminating and pasting felt, sponge and double faced adhesive tape, and the sealed felt is found in production practice, when the existing sealed felt is pasted on the cartridge, wrinkles can appear on the felt in the operation of the cartridge or after the operation of the cartridge for a period of time, and the cartridge has the powder leakage problem, so that the problems of poor sealing, printing and copying quality reduction and the like of the cartridge are caused.

Chinese patent document No. CN201681256U discloses a toner cartridge for laser printer, which can provide good radial support for the original radial sealing component at the developing roller shaft end by additionally filling rubber pads with high tensile strength at the developing roller shaft end and the corresponding supporting portion of the toner cartridge, so as to increase the radial contact tightness degree of the original radial sealing component to the developing roller circumferential surface, improve the sealing property of the developing roller shaft end, and prevent the toner from leaking from the developing roller shaft end. The condition of infirm adhesion can be caused by adhesion of the felt and the sponge; and because the surface of the felt is fine fluff fiber, fluff fracture is easy to generate under the condition of infirm adhesion, the damage of the sealed felt is accelerated, the problems of poor sealing of the carbon powder box, poor printing and copying quality and the like are caused.

All kinds of practical novel contents

The utility model provides a prevent sealed felt of wrinkling can prevent effectively that sealed felt from producing the fold at the cartridge work, influencing cartridge sealing performance's problem.

The utility model discloses a first purpose is realized by following technical scheme:

the anti-wrinkling sealing felt comprises a felt, a sponge and a PET (polyethylene terephthalate) film, wherein one surface of the sponge is glued and then attached to one surface of the PET film, one surface of the felt is glued and then attached to the other surface of the PET film, and the PET film is located between the felt and the sponge.

According to the technical scheme, the PET film is arranged between the felt and the sponge, and the condition that the felt and the sponge are pasted to cause infirm pasting can be effectively overcome due to the fact that the surface of the PET film is smooth and the PET film is arranged between the felt and the sponge; the tension of the PET film compensates for the situation that when the sealing felt is adhered to the circular arc-shaped felt platform, the adhesive layer is easy to lose effectiveness due to the fact that the upper surface and the lower surface of the adhesive layer are bent under different tensions, the adhering effect is better, and the problem that the sealing felt folds in the working process of the carbon powder box or after working for a period of time is effectively solved.

As a further improvement of the utility model, the felt, the sponge and the PET film are rectangular sheets with the same length and the same width.

As a further improvement of the utility model, the felt, the sponge and the PET film have the length of 20-40mm and the width of 3-5 mm.

As a further improvement of the utility model, the thickness of the anti-wrinkling sealing felt is 2.3mm-3.0 mm.

As a further improvement of the utility model, the thickness of the felt is 0.8-1.0 mm.

As a further improvement of the utility model, the thickness of the PET film is 0.05 mm.

As a further improvement of the utility model, the thickness of the sponge is 1.25mm-2.15mm

As a further improvement of the utility model, the thickness of the anti-wrinkling sealing felt is 2.5 mm; wherein the thickness of the felt is 0.8mm, the thickness of the PET film is 0.05mm, and the thickness of the sponge is 1.65 mm.

Description of the drawings

Fig. 1 is a schematic view of a wrinkle-proof sealing felt according to the present invention.

Fig. 2 is a schematic view of the anti-wrinkling sealing felt adhered to the toner cartridge.

(specific embodiments) in all cases

The following description will further describe embodiments of the present invention with reference to the accompanying drawings, wherein for convenience of description, the upper, lower, left, right, front, rear, and other orientations may be defined in the present application, and the present application is intended to clearly describe the relative position relationship of the structures, and is not intended to limit the actual orientation of the product during the manufacturing, using, selling, and the like. The following description of the embodiments of the present invention will be made with reference to the accompanying drawings:

referring to fig. 1, the embodiment provides an anti-wrinkling sealing felt, which includes a felt 1, a sponge 2, and a PET film 3, wherein one surface 21 of the sponge 2 is glued and then attached to one surface of the PET film 3, and one surface 11 of the felt 1 is glued and then attached to the other surface of the PET film 3, that is, the PET film 3 is located between the sponge 2 and the felt 1.

The felt 1 is subjected to wool opening treatment, and impurities in the felt are extracted; and then through the procedures of tamping felt and felting, a felt blank is manufactured, so that the hardness and density treatment of the felt blank meet the process requirements. And finally, cutting the felt blank into the felt 1 which has the length of 23mm, the width of 4mm and the thickness of 0.8mm and meets the process requirements. As other possible solutions, the felt may have a length comprised between 20mm and 40mm inclusive, a width comprised between 3.0mm and 5.0mm inclusive, and a thickness comprised between 0.8mm and 1.0mm inclusive.

The length and width of the sponge 2 and the PET film 3 are the same as those of the felt 1, the thickness of the sponge 2 is 1.65mm, and the thickness of the sponge can be other values between 1.25mm and 2.15mm inclusive; the thickness of the PET film 3 is 0.05 mm. I.e. in this embodiment the sealing felt 1 has a thickness of 2.5 mm.

When the sealing felt is produced, two opposite surfaces of the sponge 2 are subjected to gluing treatment, one glued surface 21 is covered with the PET film, one surface of the PET film 3 is flatly covered on the sponge 2, no air bubbles are generated between the PET film 3 and the sponge 2, and the PET film 3 is tightly attached to the sponge 2 by glue solution. One surface 11 of the felt 1 is glued and smoothly attached to the other surface of the PET film 3, and no air bubbles are generated between the PET film 3 and the felt 1.

The PET film is arranged between the felt and the sponge, so that the condition that the felt and the sponge are pasted to cause infirm pasting can be effectively overcome; the tension of the PET film compensates for the situation that when the sealing felt is adhered to the circular arc-shaped felt platform, the adhesive layer is easy to lose effectiveness due to the fact that the upper surface and the lower surface of the adhesive layer are bent under different tensions, the adhering effect is better, and the problem that the sealing felt folds in the working process of the carbon powder box or after working for a period of time is effectively solved.

Referring to fig. 2, the sealed felt after being attached is attached to the felt platform by the other adhesive surface 22 of the sponge, and is attached to the felt platforms at the two ends of the powder bin of the toner cartridge.

Through the test, use the utility model provides a sealing performance index of cartridge of sealed felt as follows:

by the test example, when the number of printed pages is 500, the printer toner cartridge provided by the embodiment and the printer toner cartridge in the prior art both maintain normal sealing performance; when the number of printed pages reaches 1000 pages, the felt of the printer cartridge of the prior art appears the crease, and has appeared slightly leaking the powder phenomenon in the felt position, when the number of printed pages reaches 2000 pages, the felt of the printer cartridge of the prior art appears more serious fold, and has appeared more serious leaking the powder phenomenon in the felt position. The felt surface of the printer carbon powder box provided by the embodiment is still well attached, no crease is generated, and the normal sealing performance is maintained. It is thus clear that, through set up one deck PET membrane between felt and sponge, make the laminating of sealed felt more firm, be difficult to produce the fold, help improving the sealing performance of cartridge, effectively solve the problem that the cartridge leaks the powder.

The above embodiments are merely for full disclosure and are not intended to limit the present invention, and all changes that can be made without creative work based on the inventive idea and the equivalent technical features should be considered as the scope of the present disclosure.

Claims

1. An anti-wrinkling sealing felt is characterized in that: the PET film adhesive tape comprises a felt, a sponge and a PET film, wherein one surface of the sponge is attached to one surface of the PET film after being coated with adhesive, one surface of the felt is attached to the other surface of the PET film after being coated with adhesive, and the PET film is located between the sponge and the felt.

2. An anti-wrinkling sealing felt according to claim 1, characterized in that: the felt, the sponge and the PET film are rectangular sheets with the same length and the same width.

3. An anti-wrinkling sealing felt according to claim 1, characterized in that: the felt, the sponge and the PET film have the length of 20-40mm and the width of 3-5 mm.

4. An anti-wrinkling sealing felt according to claim 1, characterized in that: the thickness of the anti-wrinkling sealing felt is 2.3mm-3.0 mm.

5. An anti-wrinkling sealing felt according to claim 1, characterized in that: the thickness of the felt is 0.8-1.0 mm.

6. An anti-wrinkling sealing felt according to claim 1, characterized in that: the thickness of the PET film is 0.05 mm.

7. An anti-wrinkling sealing felt according to claim 1, characterized in that: the thickness of the sponge is 1.25mm-2.15 mm.

8. An anti-wrinkling sealing felt according to any one of claims 3 to 7, characterized in that: the thickness of the anti-wrinkling sealing felt is 2.5 mm; wherein the thickness of the felt is 0.8mm, the thickness of the PET film is 0.05mm, and the thickness of the sponge is 1.65 mm.