CN201107552Y

CN201107552Y - Carbon powder supplying equipment

Info

Publication number: CN201107552Y
Application number: CNU2007200551334U
Authority: CN
Inventors: 赵江; 林龙
Original assignee: Print Rite Technology Development Co Ltd of Zhuhai
Current assignee: Print Rite Technology Development Co Ltd of Zhuhai
Priority date: 2007-07-30
Filing date: 2007-07-30
Publication date: 2008-08-27
Anticipated expiration: 2017-07-30

Abstract

The utility model relates to a carbon powder supply device which is suitable for an imaging device of a copycat, a printer or an electrograph. The carbon powder supply device includes a powder cylinder; a powder cylinder end cover; a sealing piece and a connecting component; the powder cylinder end cover is mounted at the front end of the powder cylinder; the powder cylinder end cover is provided with a carbon powder outlet; the sealing piece plugs the outlet; one connecting component spring is arranged between the connecting component and the powder cylinder end cover; wherein, the inner surface of the sealing piece is provided with a powder guiding structure. Compared with the prior art, the carbon powder supply device of the utility model adds a powder guiding mechanism used for feeding the carbon powder on the inner surface of the sealing piece; the powder guiding structure can be a spirally extended salient; the arrangement of the powder guiding structure enlarges the utility ratio of the carbon powder in the powder cylinder, namely when the carbon powder in the powder cylinder is less, the utility model can still feed out the sealing piece along the powder guiding mechanism; thereby entering into the imaging device and reducing the use cost of a user.

Description

Carbon powder supplier

Technical Field

The utility model relates to a carbon powder supplier, which is suitable for imaging devices such as a copier, a printer or a fax machine.

Background

In a toner supply device available on the market, as described in chinese patent CN200510070273.4, there is a typical structure that generally includes a toner cartridge, a toner cartridge end cap, a sealing member, a coupling member, etc., a toner supply container is detachably mounted to an image forming apparatus, the toner supply container is loaded into the image forming apparatus through the coupling member, a rib-shaped spiral protrusion is provided in the toner cartridge, and when the toner cartridge is rotated, the toner is axially conveyed toward a front end of the toner cartridge along the spiral protrusion, and finally, the toner is discharged from an outlet of the toner cartridge. The carbon powder supplier has the following problems in practical use: the spiral protrusion for feeding the powder is not arranged at the powder outlet at the front end of the powder box, so that the purpose of continuously conveying the carbon powder is achieved by continuously extruding the front carbon powder through the rear carbon powder.

Disclosure of Invention

The utility model aims to provide a carbon powder supplier which can make full use of the carbon powder therein.

In order to achieve the above object, the utility model provides a following technical scheme: a toner supply comprising

A powder cartridge;

a powder barrel end cover;

a seal member; and

a coupling member;

the end cover of the powder cylinder is arranged at the front end of the powder cylinder to form a carbon powder containing space, a carbon powder outlet is arranged on the end cover of the powder cylinder, and the sealing element can open and close the outlet; the connecting member is sleeved on the end cover of the powder cylinder and can move axially relative to the end cover of the powder cylinder; a connecting member spring arranged between the connecting member and the powder cylinder end cover; one end of the powder outlet valve core is fixed at the central hole of the sealing element, and the other end of the powder outlet valve core extends into the connecting member;

wherein,

the sealing element is basically cylindrical and is provided with a powder guide channel penetrating through two end faces of the cylinder.

The powder guide channel comprises a spiral surface extending along the axial direction of the sealing element.

Lead powder passageway has two, and sets up along sealing member axial symmetry.

Compared with the prior art, the carbon powder supplier of the utility model adds a powder guiding channel for conveying carbon powder on the inner surface of the sealing element. The arrangement of the powder guide channel increases the utilization rate of the carbon powder in the powder cylinder, and even if the carbon powder in the powder cylinder is less, the sealing element can still be conveyed out along the powder guide mechanism, so that the sealing element enters the imaging device. The use cost of the user is reduced. And the powder guide channel internally comprises a spiral surface extending along the axial direction of the sealing element, so that the powder feeding effect in the sealing element is smoother. The two symmetrically arranged powder guide channels enable the powder feeding of the sealing element to be more uniform and convenient in the rotating process.

Drawings

FIG. 1 is an exploded perspective view of the toner supply of the present invention;

FIG. 2 is an orthographic view of the assembled toner supply of the present invention;

FIG. 3 is a sectional view taken along A-A of FIG. 2;

FIG. 4 is an enlarged view of a portion of FIG. 3 at C;

FIGS. 5-7 are perspective views of different placement states of the sealing member of the toner supply of the present invention;

FIG. 8 is a front view of the sealing member of the toner supply of the present invention;

FIG. 9 is a sectional view taken along line B-B of FIG. 8;

FIG. 10 is a rear view of the sealing member of the toner supply of the present invention;

the present invention will be further explained with reference to the drawings and examples.

Detailed Description

Example one

Referring to fig. 1-4, fig. 1 shows a three-dimensional exploded view of the toner supply of the present invention; FIG. 2 shows an assembly view of the toner supply. The toner supply includes a toner cartridge 1, a toner cartridge end cap 2, a stirring frame blade 3, a sealing member 4, and a coupling member 5. The powder cylinder end cover 2 is sleeved at the front end of the powder cylinder 1, and the front part of the powder cylinder end cover 2 is provided with a carbon powder outlet. The stirring frame blade 3 is arranged in the powder cylinder and is fixed at the inner side of the powder cylinder end cover 2 through a screw.

Referring to fig. 5-10, fig. 5-10 are detail views of the seal; fig. 5-7 are perspective views from different angles. The sealing element 4 is basically cylindrical, and the outer peripheral surface of the sealing element is provided with a protruding part 44, and the protruding part 44 is matched with a groove at the inner side of a carbon powder outlet of the powder cylinder end cover, so that the sealing element 4 and the powder cylinder end cover are circumferentially fixed. Two powder guide channels 42 penetrating through the cylindrical inner surface are arranged inside the sealing element 4, the two powder guide channels 42 are respectively defined by the cylindrical inner surface of the sealing element 4 and a spiral surface 41 extending along the axial direction of the sealing element 4 (see fig. 5 or fig. 7), the two powder guide channels 42 are symmetrically arranged along the axial direction of the sealing element 4, the plane where the powder outlet ends of the two powder guide channels 42 of the sealing element 4 are located is pressed with the end part of the carbon powder outlet of the end cover of the powder barrel, the powder outlet ends of the two powder guide channels 42 are staggered with the powder outlet of the end cover of the powder barrel in the circumferential direction, and the carbon powder is sealed at.

Referring to fig. 1-4 again, the connecting member 5 is sleeved on the powder cartridge end cover 2 and can move axially along the powder cartridge end cover 2, and two buckles are arranged on the outer surface of the powder cartridge end cover 2 and prevent the connecting member 5 from sliding off the powder cartridge end cover 2; between the coupling member 5 and the powder cartridge end cap 2 is a sealing sponge 8. A connecting member spring 6 is arranged between the connecting member 5 and the stirring frame blade 3. At the end of the sealing element 4, a sealing sponge 7 is provided, which sealing sponge 7 is fastened to the sealing element 4. A powder outlet valve core 11 penetrates through a central hole 43 of the sealing element 4, the powder outlet valve core 11 is in a stepped shaft shape, one end of the powder outlet valve core 11 extends out of the sealing element 4 and is locked through a split pin 9, a sealing rough gasket 10 is arranged at the contact position of the powder outlet valve core 11 and the sealing element 4, and the sealing rough gasket 10 is arranged in the sealing element 4. The powder outlet valve core 11 is sleeved with a valve core spring 12, the other end of the powder outlet valve core extends into the connecting member 5, and one end of the powder outlet valve core 11 extending into the connecting member 5 is sleeved with a sealing sponge 13. When the ejector rod on imaging equipment such as a printer pushes the powder outlet valve core 11 to move axially, the sealing element 4 also moves axially along with the powder outlet valve core 11, so that the powder outlet ends of the two powder guide channels 42 of the sealing element 4 are separated from the powder outlet of the powder barrel end cover 2 in the axial direction, and carbon powder can flow out from the powder outlet of the barrel end cover 2.

The toner supply is further described below with an example of the process of loading a toner supply into a printer:

1. the stroke less than 38.5mm is the action of the toner supplier entering the printer, when the stroke is equal to 38.5mm, the motor valve core in the imaging device just contacts the toner outlet valve core 11, and the states of all parts in the toner supplier are the same as the initial state.

2. The motor valve core begins to compress the powder outlet valve core 11, meanwhile, the sealing element 4 moves backwards along with the powder outlet valve core 11, the end part of the sealing element 4 is separated from the powder barrel end cover 2, the powder opening is opened by 6.5MM, and the compression amount of a valve core spring 12 at the powder opening is 6.5 MM. The front end fastener of the connecting member 5 also enters the motor clamping groove of the imaging device at the same time, so that the connecting member is in a position capable of transmitting torque (namely a final working state), at the moment, the step surface of the connecting member 5 is just in a fit state with sponge in the imaging device, meanwhile, the carbon powder supplier can not move forward any more, and the connecting member spring 6 is in a compressed state.

3. Because the front end of the connecting member 5 is limited by the imaging device and can not move forward any more, and at the moment, the powder cylinder 1 still moves forward 15mm, so that the powder cylinder 1 and the connecting member 5 generate relative displacement to compress the connecting member spring 6 (the final compression amount is 15mm), and at the moment, the motor valve core and the powder outlet valve core 11 can not move relatively. Since both springs are in compression in this state, the powder cartridge force is also at this point at a maximum, namely 15mm for the coupling member spring 6 and 6.5mm +15mm for the cartridge spring 12 d. The coupling member spring 6 acts mainly to counteract a 15mm return stroke of the machine itself.

4. The printer itself has a 15mm return stroke, at which the coupling member spring 6 and the spool spring 12 release their spring force. Finally, the coupling member spring 6 is maintained in a non-compressed state and the spool spring 12 is compressed by 6.5 mm. The state is the final state as in process 2 above.

Example two

The toner supply of the present embodiment includes a toner cartridge, a toner cartridge end cap, a stirring frame blade, a sealing member, and a coupling member. The difference between this embodiment and the first embodiment is mainly that the powder guiding channel in the sealing member has a different structure, in which the powder guiding channel in the first embodiment is mainly surrounded by two axially extending spiral surfaces and the inner surface of the sealing member, and in this embodiment, the spiral surfaces are changed into general inclined surfaces, and along the inclined surfaces, carbon powder can be conveyed to the carbon powder outlet of the sealing member along the inclined surfaces as the sealing member rotates. Other structures of the toner supply device of this embodiment are substantially the same as those of the first embodiment, and are not described herein again.

Of course, the structural components of the toner supply device of the present invention are not limited to the above-mentioned embodiments. For example, the powder guiding mechanism in the sealing member may be a structure such as a separate powder guiding frame disposed in the sealing member, and the groove or protrusion in the sealing member may be in a spiral extending form or other oblique extending forms, as long as carbon powder can be conveyed to the carbon powder outlet of the sealing member by the rotation of the sealing member. Obvious modifications to the above-described embodiments and other variations which do not depart from the spirit of the invention are intended to be included within the scope of the appended claims.

Claims

1. A toner supply comprising

A powder cartridge;

a powder barrel end cover;

a seal member; and

a coupling member;

the method is characterized in that:

2. The toner supply of claim 1, wherein:

the powder guide channel comprises a bevel extending along the axial direction of the sealing element.

3. The toner supply of claim 1, wherein:

4. The toner supply of claim 3, wherein:

the powder guide channel is provided with two channels.

5. The toner supply of claim 4, wherein:

the powder guide channels are axially and symmetrically arranged along the sealing element.

6. A toner supply according to any of claims 1-5, wherein:

the powder cylinder is internally provided with a stirring frame blade which is fixed on the inner side of the end cover of the powder cylinder.