CN2859588Y - Carbon powder box for copying machine - Google Patents

Abstract

A carbon powder box for copying machine proceeding an integral rotation driven by the copying machine includes a box and a box cover locking mutually to provide a sealed storehouse for carbon powder. The inside of the box axial end is provided with a discharge port for connecting the sealed storehouse with the developing chamber of the copying machine. Wherein, the discharge port faces the exterior port of the developing chamber and its opening/closing state is controlled by a valve. The carbon powder box still includes a stirring frame comprising spiral vanes and a supporting shaft in the sealed storehouse. Wherein, the supporting shaft is fixed in the sealed storehouse and the radial center of the spiral vanes is fixed on the radial exterior surface of the supporting shaft. Cooperating with the rotation of the carbon powder box, the spiral vanes propell carbon powder to the discharge port. The superiority of the utility model lies in that the carbon powder box can send powder evenly and stably without carbon powder residue.

Description

The used in copy machines cartridge

Technical field

The utility model relates to a kind of cartridge that carbon dust is provided for photosensitive drums in the electrophotograph imaging device that is removably installed in, and its related electrophotograph imaging device can be an Xerox, perhaps digital duplicating machine or one printer etc.

Background technology

In image formings such as Xerox, digital duplicating machine or one printer, be provided with and be used for developing apparatus that the electrostatic latent image that is formed on the photosensitive drums is developed.This developing apparatus is laid in carbon dust on the electrostatic latent image, develops.Usually, the carbon dust consumed that develops is generally provided by cartridge.Cartridge is with the inserting mode precalculated position in the main frame of packing into, opens cartridge with rotating manner and unloads guard shield on the head piece, makes carbon dust flow out to developing apparatus via unloading head piece, is distributed in the corresponding electrostatic latent image of photosensitive drums zone again after the carbon dust distribution plate is regulated.After the carbon dust in the cartridge uses up, the cartridge that more renews again.

U.S. Patent application instructions US2005/0053399A1 discloses a kind of developer box, and it comprises: shape is adapted to the container of main frame developing chamber and energy receiving photographic developer, is made of lid and box body; Be provided to a head piece that unloads that developer is provided for developing chamber on the container; The inside surface of the lid of container and box body two members is all bossed to the projection that unloads the powder feeding of head piece direction; The first powder feeding portion and second a powder feeding portion that is positioned on the cartridge inner surface that is positioned on the lid inside surface.Need cooperatively interacting with the first powder feeding portion and the second powder feeding portion to the projection that unloads the powder feeding of head piece direction of the inside surface projection of the lid of this container and box body two members could be realized the transmission of carbon dust.After container is installed in the developing chamber, rotate by the host driven integral container, at this moment, the projection that inwardly stretch in the cartridge inner surface footpath reaches second powder feeding portion towards unloading the head piece direction from the first powder feeding portion with developer, the multistage straight line transmits discontinuously according to this, carbon dust is arrived unload position, head piece place.So, unload the developer that head piece just can be provided for image forming to duplicating machine.Yet this automatic powder feeding system easily causes inhomogeneous that carbon dust transmits, and forms carbon dust easily and pile up unloading the head piece place.In the whole rotary course of developer box, when unloading the head piece precession to the powder feeding position, the carbon dust of accumulation can produce the phenomenon of collapsing that jumps.

Solve jump the collapse means of phenomenon of above-mentioned carbon dust and also be found in prior art, promptly unload the head piece place resistance powder structure is set at the developer box box body.Resistance powder structure is extended to developer box is inner by unloading the head piece inner wall surface, and its opening direction is substantially parallel with the developer box wall that unloads the head piece place, and the distance of its openend and developer box wall storehouse radial span in the developer box has less size.Far and away, manufacturing has increased certain degree of difficulty to the make of this resistance powder structure to mould.

In addition, domestic application for a patent for invention instructions CN03122285 discloses a kind of developer supply case that is removably mounted on the imaging device.It comprises: the main body that is used for receiving photographic developer; Be arranged on the main body, be used to allow to discharge the floss hole of developer; The valve component that is used for the open and close floss hole; Can be with respect to the rotating parts of main body rotation with the open and close valve component; Be used to limit the limiting member of rotating parts along the rotation of the direction of opening valve component, it comprise one be integral with rotating parts and basically along rotating parts open prolongation that rotation direction extends and one from prolongation stretch to master component, be used for against the restriction projection of the retention tab of main body, this limiting member has one and is used at the fitting operation of the developer supply case bearing part against imaging device, and the restriction projection be displaced to one it can not be on the position of retention tab.This developer supply case provides a kind of coordinated effect that utilizes main machine structure with regard to the opening and closing of developer floss hole, realizes the developer reservoir that the developer box floss hole opens and closes.

Summary of the invention

The utility model purpose is to provide a kind of carbon dust to transmit homogeneous texture and simply is applied to for example cartridge of Xerox of electrophotograph imaging device.

According to above-mentioned purpose, provide a kind of cartridge that is used for duplicating machine.Whole rotation takes place in this used in copy machines cartridge under the driving of duplicating machine.Its structure comprises box body 4 and lid 2.After fastening mutually, box body 4 and lid 2 be provided for storing storehouse in the columniform sealing of being similar to of carbon dust.Box body 4 axial end portion inboards be provided be used to link up storehouse and duplicating machine developing chamber in the above-mentioned sealing unload head piece 42.This unloads head piece 42 and controls its unlatching or closed condition towards the external port of duplicating machine developing chamber by valve.This cartridge also comprises the puddle support 3 that is arranged in cartridge sealing storehouse.Puddle support 3 is made of spiral vane and back shaft 34.Back shaft 34 is fixed in the interior storehouse of cartridge sealing.Spiral vane radially middle part is fixed in the radially-outer surface of back shaft 34.This spiral vane cooperates the rotation of cartridge that carbon dust is unloaded head piece 42 from being advanced into away from an end that unloads head piece 42.

In the technique scheme, spiral vane preferably adopts discontinuous to distribute, and the shape of its outward appearance and cartridge sealing inner barn wall adapts, and it radially is resisted against the surface that cartridge seals inner barn wall in the outer.

In the technique scheme, spiral vane can comprise the two parts 31,32 that are symmetrical in back shaft 34 distributions.Spiral vane 31 is positioned at the corresponding space of lid 2.Spiral vane 32 is positioned at the corresponding space of box body 4.

In the technique scheme, be distributed in and unload head piece 42 has 180 ° along the spiral phasing degree of the spiral vane of the axial both sides of cartridge phase differential.

After the utility model adopts the helical blade automatic powder feeding system, duplicating machine drives whole cartridge box body and rotates around being positioned at the external a certain virtual dead axle of cartridge when adjusting gray scale, form the corresponding rotation of cartridge internal helical blades, by puddle support carbon dust is reached in the next blade to arriving from a last blade inside spin and unloads head piece to unloading the head piece direction, deliver to layer by layer equably thus and unload head piece, again carbon dust is sent to magnetic roller place developing chamber by unloading head piece.Duplicating machine behind the cartridge that stops operating, begins to duplicate after needing the powder amount to reach sufficient state by powder amount induction perception.When the induction of powder amount was not enough, duplicating machine rotated cartridge again again, and puddle support begins powder feeding again again in the cartridge, goes round and begins again the carbon dust in exhausting box thus.The used in copy machines cartridge of this employing helical blade automatic powder feeding system can reach the effect that spiral evenly transmits carbon dust in the box, and can drain carbon dust in the box up hill and dale, avoid causing the residual and waste of carbon dust, resistance powder structure no longer need be set in box body in addition in addition, simplify the structure of cartridge.As the helical blade puddle support of individual member, when production and assemble carbon powder box, operate all very convenient.

The drawing explanation

Fig. 1 the utility model used in copy machines cartridge structural representation.

Fig. 2 the utility model used in copy machines cartridge fragmentary, perspective view.

Fig. 3 the utility model used in copy machines cartridge STRUCTURE DECOMPOSITION synoptic diagram.

Fig. 4 the utility model used in copy machines cartridge structural representation illustrates decomposition texture substantially vertically.

Fig. 5 a the utility model used in copy machines cartridge puddle support structural representation.

Fig. 5 b the utility model used in copy machines cartridge puddle support structural representation illustrates the both sides up and down that helical blade is distributed in back shaft.

Fig. 5 c the utility model used in copy machines cartridge puddle support structural representation illustrates the both sides, front and back that helical blade is distributed in back shaft.

The blade construction that Fig. 5 d is Fig. 5 c puddle support behind own level axle Rotate 180 °.

The local enlarged perspective of Fig. 6 the utility model used in copy machines cartridge.

Embodiment

Referring to Fig. 1,2,3,4, the utility model duplicating machine cartridge 1.On the structure, this cartridge 1 comprises lid 2, puddle support 3 and box body 4.Box body 4 and lid 2 along mutual contact groove face and fasten after, the shape approximation storehouse in columniform sealing that is provided for storing carbon dust.The face shaping of cartridge 1 is adapted to the butt joint space of duplicating machine main frame developing chamber.On the inboard post jamb of box body 4 axial end portions, be provided be used to link up storehouse and duplicating machine developing chamber in the above-mentioned sealing unload head piece 42 (see figure 6)s.This unloads head piece 42 and controls its unlatching or closed condition towards the external port of duplicating machine developing chamber by valve.Valve is arranged at usually near the axial end portion that unloads the box body 4 of head piece 42.

Referring to Fig. 1,2,3,6, puddle support 3 is arranged in the interior storehouse of cartridge sealing.Puddle support 3 is made of spiral vane and back shaft 34.A termination of back shaft 34 is fixed on the support 41 that is provided with on the sidewall of storehouse in the cartridge sealing, realizes fixed engagement by the tongue-and-groove that cooperatively interacts between the two.The radially-outer surface of back shaft 34 is fixed at the radially middle part of spiral vane.Spiral vane becomes equidistantly to distribute along the axially basic of back shaft 34.Puddle support 3 is packed in the cartridge sealing behind the storehouse, the cartridge 1 of filling carbon dust along in the Xa direction insertion duplicating machine main frame shown in Figure 1.The duplicating machine main frame drives cartridge 1 integral body and rotates along Y direction shown in Figure 1, and this spiral vane cooperates the sense of rotation of cartridge that carbon dust is unloaded head piece 42 from being advanced into away from an end that unloads head piece 42.After carbon dust exhausts, withdraw from cartridge 1 along Xb direction shown in Figure 1.

Referring to Fig. 5 a, 5b, 5c, 5d, spiral vane itself adopts discontinuous discontinuous to distribute, and is divided into being symmetrical in two parts 31,32 that back shaft 34 distributes.The space that has interruption between spiral vane two parts 31,32, this space also are symmetrical in back shaft 34 and distribute.The shape of face shaping of spiral vane two parts 31,32 and cartridge sealing inner barn wall adapts, and corresponds respectively to the bulkhead shape that lid 2 and box body 4 are used to form storehouse in the cartridge sealing more precisely.Under confined state, the radially outer of spiral vane two parts 31,32 is resisted against the corresponding bulkhead surface in storehouse and lid 2 and box body in the cartridge sealing 4 respectively, and the major part of its lamellar body then lays respectively at the corresponding space interior (seeing shown in Figure 6) that lid 2 and box body 4 self surround.

Among Fig. 6, unload near head piece 42 box body 4 part inwalls and be shrunk to semicircular ring platform 43, so that the valve that cooperates with the duplicating machine main frame is set.Semicircular ring platform 43 along box body 4 extend axially to length greater than the length in the same way of unloading head piece 42.Therefore, corresponding the dwindling of volume of the spiral vane corresponding with position, semicircular ring platform 43 place forms shape approximation in the spiral vane 36 and 33 of spiral vane 32.Wherein spiral vane 36 to the distance of unloading near box body 4 end walls the head piece 42 greater than spiral vane 33, and its spiral phasing degree is identical with spiral vane 32, compares the phase differential that then has 180 ° with spiral vane 33.Unload head piece 42 just on 4 sidewalls of the box body between spiral vane 36 and 33.Similarly, with the corresponding zone of spiral vane 36 and 33 positions, be positioned at lid 2 become the spiral vane 31 of cavity identical with 35 shapes, but have 180 ° spiral phase differential.So, drive cartridge 1 integral body along in the process of Y direction rotation shown in Figure 1 at the duplicating machine main frame, on the one hand, carbon dust rotates in cartridge 1 and rolls, on the one hand spiral vane 31,32 rotation that cooperates cartridges 1 with carbon dust from away from an end that unloads head piece 42, be advanced into piecewise along spiral vane and unload head piece 42, and make carbon dust be subjected to the reverse promotion of spiral vane 33,35 and be transported to continuously in this end and unload head piece 42.Therefore, carbon dust transports not only stable and uniform, and the spiral vane of this reverse distribution can not cause carbon dust residual, helps giving full play to the deposit space of cartridge and avoids forming waste.Certainly, the reverse distribution mode of spiral vane can also adopt other spiral phasing degree, and is not necessarily fully opposite, just can reach purpose of design as long as guarantee carbon dust with joint efforts what unload that head piece 42 is subjected to pointing to this mouthful.

Claims (4)

1. used in copy machines cartridge, described duplicating machine drives the whole rotation of described cartridge, described cartridge comprises box body (4) and lid (2), described box body (4) and described lid (2) are provided for storing storehouse in the columniform sealing of being similar to of carbon dust after fastening mutually, described box body (4) axial end portion inboard be provided be used to link up storehouse and described duplicating machine developing chamber in the described sealing unload head piece (42), the described head piece (42) that unloads is controlled its unlatching or closed condition towards the external port of described duplicating machine developing chamber by valve, it is characterized in that also comprising the puddle support (3) that is arranged in described cartridge sealing storehouse, described puddle support (3) is made of spiral vane and back shaft (34), described back shaft (34) is fixed in the interior storehouse of described cartridge sealing, described spiral vane radially middle part is fixed in the radially-outer surface of described back shaft (34), the rotation that described spiral vane cooperates described cartridge with carbon dust from being advanced into the described head piece (42) that unloads away from a described end that unloads head piece (42).

2. used in copy machines cartridge according to claim 1 is characterized in that described spiral vane is discontinuous and distributes, and its outward appearance and described cartridge sealing inner barn wall shape adapt to, and it radially is resisted against described cartridge sealing inner barn wall surface in the outer.

3. used in copy machines cartridge according to claim 2, it is characterized in that described spiral vane comprises the two parts (31,32) that are symmetrical in described back shaft (34) distribution, described spiral vane (31) is positioned at the corresponding space of described lid (2), and described spiral vane (32) is positioned at the corresponding space of described box body (4).

4. according to claim 2 or 3 described used in copy machines cartridges, it is characterized in that being distributed in described head piece (42) has 180 ° along the spiral phasing degree of the described spiral vane of the axial both sides of described cartridge the phase differential that unloads.

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