CN207115027U - For printer plus the powder adding device of powder - Google Patents

Abstract

It the utility model is related to a kind of powder adding device for adding powder for printer, including active section, linkage section and holding section, linkage section is between active section and holding section, active section is projected as projection A on plane A, plane A is a plane with the perpendicular arrangements of direction f, and direction f is powder adding device short transverse, and holding section is projected as projection B on plane A, it is consistent with figure N1 shape to project A shape, figure N1 is that figure M1 deforms to obtain by the following method：Figure M1 is equilateral triangle, including while a1, while b1 and side c1, by equilateral triangle when c1 bends the arc of camber to triangle interior c1 ', while a1 and while to carry out the figure of gained after fillet processing be figure N1 for b1 junctions.Such scheme, when powder adding device insertion New Type of Carbon powder bottle is added into carbon dust into toner cartridge, can effectively solve the problems, such as carbon dust blocking, avoid carbon dust from occurring the problem of leakage is polluted and wasted when adding.

Description

For printer plus the powder adding device of powder

Technical field

It the utility model is related to printing device and consumptive material field, and in particular to a kind of add powder for printer plus powder dress Put.

Background technology

Carbon dust in printer is stored within toner cartridge.Toner cartridge, also referred to as photosensitive drums, the base material being typically made of aluminum and The photosensitive material coated on base material is formed, and is the important component in printer, and because carbon dust is easily-consumed products, therefore printer is transported Just need to add carbon dust into toner cartridge after row a period of time or change toner cartridge.Because the cost of toner cartridge is higher, therefore, city at present The toner cartridge sold on field is mainly that the toner cartridge for adding powder can be repeated several times.Toner cartridge adds powder operation mainly to include opening on waste powder hopper Meal outlet, the powder that given up in waste powder hopper is poured out completely, the meal outlet on waste powder hopper is then closed, then opens and enter powder in toner Mouthful, new carbon dust is poured into toner from powder inlet, is then shut off toner powder inlet.Although operation is relatively simple, It is due to that carbon dust is superfine, therefore in operation, accidentally will result in carbon dust and leak, pollutes workbench and surrounding ring Border.Particularly when adding powder, carbon dust is easily spilt, and is fallen in operating personnel on hand or on desktop, it is extremely difficult to clear up.

The carbon dust of existing market sale is mainly Zhi Guanzhuan, that is, toner bottle is mounted in by carbon dust factory by carbon powder filling device Consumer is sold in toner bottle as shown in Figure 1.Bottle and bottle mouth position of the toner bottle including tubbiness are set plus prostitute, adds The guide portion of the Taper Pipe shape of the reduced diameter set on the connecting portion and connecting portion that prostitute includes being relatively large in diameter, bottle mouth position External screw thread is opened up on lateral wall, internal thread is set on the madial wall of connecting portion, adds prostitute and bottle to be connected through a screw thread, adds prostitute Play a part of funnel when toner bottle is inverted and adds powder.Bottle mouth position sets sealed membrane line up to be sealed, and prevents carbon dust from leaking Or make moist.When adding powder, add prostitute to back out, remove sealed membrane, then prostitute will be added to load onto again, prostitute will be added to pass through in toner In powder inlet insertion toner, toner bottle is inverted, the carbon dust in such toner bottle will be fallen by Action of Gravity Field out of toner bottle To toner.Should plus powder mode, although adding for carbon dust can be realized, in actual mechanical process, or exist with Under insoluble problem always.

Because toner upper inlet interior diameter only has 1.8cm or so, therefore add the end diameter of inner pipe of the upper guide portion of prostitute Size just set smaller, current market sales of to paint the carbon dust such as prestige, martial prowess, capable, its end diameter of inner pipe all only has 0.8cm or so, therefore, when toner bottle is inverted and adds powder, being flowed out with the overturning of carbon dust, carbon dust, which all gathers, to be added at prostitute, Add the suction function in the powder effect that rear carbon dust will be gathered by stacking pressure for a period of time and toner bottle, prostitute will be added to block, Carbon dust can not be let out down.Now, during traditional operation, operating personnel can also be fallen by rocking toner bottle, such carbon dust Part, but add prostitute to be inserted in powder inlet, the size of powder inlet is limited by, the shaking amplitude of toner bottle is limited, therefore carbon dust Rock fall it is a certain amount of after just do not going out powder being rocked.Therefore, now operating personnel can only extract toner bottle out rotation Turn righting, toner bottle is then inverted insertion plus powder again, so repeatedly.But in toner bottle extraction rotation righting and again It is secondary toner bottle is inverted in insertion toner during, changed by toner bottle posture, carbon dust state is easily from adding on prostitute Go out, let out in toner cartridge surface, operating personnel on hand and on workbench.Therefore, after causing the waste of carbon dust and adding powder Also need to carry out substantial amounts of cleaning work.

Although also some documents disclose some toner bottles for easily adding powder at present, its scheme mainly taken has following two Kind：The first scheme is pair plus prostitute is improved, and is adding material guide mechanism that complexity is set in prostitute, such as spiral Xuan Liao mechanisms, For the program, because carbon dust belongs to easily-consumed products, and toner bottle is only intended to contain the container of carbon dust, and is set adding in prostitute Complicated material guide mechanism so that the cost increase of toner bottle, and toner bottle is disposable product, and the printing of printer is significantly greatly increased Cost, also, the setting of material guide mechanism, take the section of powder falling passage so that add the speed of powder to be greatly diminished, carbon dust can be because The presence partial product of material guide mechanism stay in plus prostitute in, therefore, it is difficult to expanded, in the market did not occurred this kind of toner bottle yet Sale.Second scheme is when being filled to toner cartridge plus carbon dust, is adding one powder adding machine of installation between prostitute and bottle, though which The quick addition of carbon dust can be so realized, but after filling carbon dust, can retain part carbon dust in powder adding machine, therefore powder adding machine is deposited Put and just seem complicated, storage is bad, and the carbon dust in powder adding machine makes moist and toner cartridge will be damaged in next time plus powder.While its Assembling, the complex operation of dismounting powder adding machine, which, it is necessary to connect electricity, during dismounting still easily cause carbon dust, inclines and is spread to operating personnel on hand, Therefore the program also fails to be widely used in actual production.

So it is easily plus powder toner cartridge starts after promoting that just puzzlement plus powder operating personnel ask always that addition carbon dust, which is easy to leak, Topic, never the feasible scheme that can be widely popularized solves to above mentioned problem.

Utility model content

The purpose of this utility model is just to provide a kind of powder adding device for adding powder for printer, uses it for new style toner Bottle, which is added carbon dust to toner cartridge, can effectively solve above-mentioned problem.

To achieve the above object, the utility model is implemented using following two technical schemes：

The first scheme is：

For printer plus the powder adding device of powder, it is characterised in that：Including active section, linkage section and holding section, linkage section Between active section and holding section, active section is projected as projecting A on plane A, and plane A is and the perpendicular arrangements of direction f A plane, direction f is powder adding device short transverse, and holding section being projected as on plane A projects B, project A shape with Figure N1 shape is consistent, and figure N1 is that figure M1 deforms to obtain by the following method：

Figure M1 is equilateral triangle, including while a1, while b1 and side c1, by the side c1 of equilateral triangle to triangle interior Bend camber arc side c1 ', while a1 and while b1 junctions carry out fillet processing after gained figure be figure N1.

Second scheme is：

For printer plus the powder adding device of powder, it is characterised in that：Including active section, linkage section and holding section, linkage section Between active section and holding section, active section is projected as projecting A on plane A, and plane A is and the perpendicular arrangements of direction f A plane, direction f is powder adding device short transverse, and holding section being projected as on plane A projects B, project A shape with Figure N2 shape is consistent, and figure N2 is that figure M2 deforms to obtain by the following method：

Figure M2 is right angled triangle, including straight flange a2, straight flange b2 and hypotenuse c2, by hypotenuse c2 to the outer of right angled triangle The arc side c2 ' of lateral bend camber, straight flange a2 bend the arc side a2 ' of camber to the inner side of right angled triangle, and straight flange b2 is to straight The arc side b2 ' of the inner side bending camber of angle triangle, the figure of gained is figure N2.

Further scheme is：The length of side of equilateral triangle is d1, and arc side c1 ' camber is h1, the fillet of fillet processing Radius is r, wherein：

Figure M2 is equilateral right angled triangle.

Straight flange a2 length of side d2, arc side a2 ' camber are h21, and arc side b2 ' camber is h22, and arc side c3 camber is H23, h21=h22,

The end of active section is arranged to spininess, and project B is shaped as circular or regular polygon.

The junction of linkage section and active section is provided with circular baffle plate, and plate face and the plane A of baffle plate are arranged in parallel, baffle plate side Portion is extended to linkage section side and is oriented to short tube.

Each corner in end face that active section intersects with linkage section is respectively arranged with projection, outer weekly interval of each projection around linkage section Set, (number of projection and the number in end face corner are consistent), the height of each projection gradually increases along direction w, and direction w is The identical or opposite direction with active section rotation direction, the edge portion wheel that is projected as projection C, projects C of each projection on plane A The wide outside contouring with projecting A matches.

By using such scheme provide powder adding device be used for New Type of Carbon powder bottle carry out add powder, first can solve carbon dust Adding the problem of being easy to block at prostitute, second can improve and add powder efficiency, so as to play the effect killed two birds with one stone.

Brief description of the drawings

Fig. 1 is the structural representation of traditional toner bottle；

Fig. 2 is a kind of embodiment of the utility model bottle；

Fig. 3 is a kind of embodiment of the utility model bottle；

Fig. 4 is enlarged diagram at Fig. 3 B；

Fig. 5 is the schematic diagram that the utility model adds prostitute；

Fig. 6 is the structural representation of the utility model toner bottle；

Fig. 7 is the structural representation for adding powder powder adding device；

Fig. 8 is the perspective view of active section and linkage section on plane A in a kind of embodiment；

Fig. 9 is the process schematic that figure M1 changes to figure N1；

Figure 10 is the perspective view of active section and linkage section on plane A in a kind of embodiment；

Figure 11 is the process schematic that figure M2 changes to figure N2；

Figure 12 is that powder adding device coordinates the structural representation for carrying out adding powder with toner bottle；

Figure 13 is a kind of view of active section；

Figure 14 is another view of active section；

Figure 15 is a kind of arrangement schematic diagram of projection embodiment on active section end face；

Figure 16 is the arrangement schematic diagram of projection another embodiment on active section end face.

Embodiment

In order that the purpose of this utility model and advantage are more clearly understood, the utility model is entered with reference to embodiments Row illustrates.It should be appreciated that following word is only to describe one or more of specific embodiments of the present utility model, Considered critical is not carried out to the protection domain of the specific request of the utility model.

Toner bottle provided by the utility model is as shown in Fig. 2,3,6, a kind of New Type of Carbon powder bottle for easily adding powder, including bottle 10 With add prostitute 20, the bottom of bottle of bottle 10 is provided with the insertion section being available in strip piece (powder adding device) insertion bottle 10, insertion section Sealed condition is in before being not inserted into strip piece.Above-mentioned signified strip piece can be any in pole stock, sheet material, tubing, sheet material One, it is when adding powder that it, which is acted on, inserts in toner bottle and plays a part of agitation, solves carbon dust and is adding what is blocked at prostitute 20 to ask Topic, realizes the carbon dust reliably addition into carbon power pot in toner bottle, also only needs to extract out strip piece after adding carbon dust, uses Toilet paper wiped clean, carbon dust in traditional scheme can be thus avoided to be easy to excessive the problem of polluting and wasting. Sealed condition refers to prevent carbon dust from leaking from insertion section, and the sealed condition of insertion section can be destroyed when adding powder.

It can specifically be implemented using the following two kinds scheme：

The first：The through hole 11 that insertion section is opened up by the bottom of bottle center position of bottle 10 is formed, at through hole 11 use can pierce Sealed membrane 12 that is broken or removing is sealed.

Second：Insertion section is made up of the through hole 11 set at the bottom centre position of bottle 10, and being provided with through hole 11 can It is detachably connected with the port lid of cooperation.

It is preferred that being implemented using the first scheme, carried out because bottle 10 is to be integrally formed, therefore using sealed membrane 12 Sealing, it does not increase any production cost, is easy to promotion and implementation substantially on original architecture basics.

Further scheme is：Insertion section is centrally located on the center line of bottle 10.Insertion section is circular or just more Side shape, it is preferable that insertion section is circle.So it is easy to powder adding device directly can deeply plus in prostitute 20 be turned on after inserting.

More further scheme is as shown in Figure 3,4, counterbore 13, counterbore 13 to be provided with the bottom of bottle center of bottle 10 Bottom hole open up through hole 11, through hole 11 forms insertion section, is additionally provided with the pipe platform 14 of tubulose in the bottom hole of counterbore 13, pipe platform 14 and logical The aperture size of the interior caliber and through hole 11 of the arranged concentric of hole 11 and pipe platform 14 is consistent, and the height of pipe platform 14 is less than counterbore 13 Hole depth, the external diameter of pipe platform 14 is less than the internal diameter of counterbore 13, and the oral area of pipe platform 14 sets the sealed membrane that can be punctured or remove 12.Using the structure, stacking and the packaging of toner bottle first can not be influenceed, second can be played pair by the setting of pipe platform 14 The effect that powder adding device insertion is oriented to, secondly, pipe platform 14 can be realized carries out spacing, convenient plus powder to powder adding device insertion Device along toner bottle cored wire direction pull and push and rotation around toner bottle cored wire direction.

Or counterbore 13 is provided with the bottom of bottle center of bottle 10, the bottom hole of counterbore 13 opens up through hole 11, and through hole 11 is formed Insertion section, the pipe platform 14 of tubulose, pipe platform 14 and the arranged concentric of through hole 11 and the inner tube of pipe platform 14 are additionally provided with the bottom hole of counterbore 13 The aperture size of footpath and through hole 11 is consistent, and the height of pipe platform 14 is less than the hole depth of counterbore 13, and the external diameter of pipe platform 14 is less than The internal diameter of counterbore 13, the oral area of pipe platform 14 are provided with the lid of detachable connection cooperation.

The size that the utility model increases also on the basis of traditional toner bottle plus prostitute 20 exports, so as to increase carbon dust Powder falling speed, improve and add powder efficiency.As shown in Figure 5,6, the bottle mouth position lateral wall of bottle 10 sets external screw thread to specific scheme, adds Prostitute 20 includes connecting portion and guide portion, and the madial wall of connecting portion sets internal thread, guide portion include Taper Pipe shape Taper Pipe section and The straight length of straight tube-like, for Taper Pipe section between straight length and connecting portion, the interior diameter of straight length is 1.2~1.6cm.It is preferred that press Implemented according to following dimension plan, the overall diameter of straight length is 1.6cm, and the pipe thickness of straight length is 1~2mm.

It is provided by the utility model to be easy to plus powder powder adding device, its by being used in combination with above-mentioned New Type of Carbon powder bottle, from And play good using effect.

It is preferred that implemented using the following two kinds scheme：

The first scheme is, as shown in Figure 8,9, for printer plus the powder adding device of powder, including active section, linkage section and Holding section, linkage section is between active section and holding section, and active section is projected as projecting A on plane A, and plane A is and side To a plane of the perpendicular arrangements of f, direction f is powder adding device short transverse, and holding section is projected as projection B on plane A, Projection A is polygon, and projection B is inside projection A circumscribed circle, and it is consistent with figure N1 shape to project A shape, figure N1 is that figure M1 deforms to obtain by the following method：

Figure M1 is equilateral triangle, including while a1, while b1 and side c1, by the side c1 of equilateral triangle to triangle interior Bend camber arc side c1 ', while a1 and while b1 junctions carry out fillet processing after gained figure be figure N1.

Second scheme is, as shown in Fig. 7,12, including active section 33, linkage section 32 and holding section 31, linkage section 32 Between active section 33 and holding section 31, active section 33 is projected as projecting A on plane A, and plane A is perpendicular with direction f One plane of arrangement, direction f are powder adding device short transverse, and holding section 31 is projected as projecting B on plane A, and projection A is Polygon, for projection B inside projection A circumscribed circle, it is consistent with figure N2 shape to project A shape, and figure N2 is schemes Shape M2 deforms to obtain by the following method：

Figure M2 is right angled triangle, including straight flange a2, straight flange b2 and hypotenuse c2, by hypotenuse c2 to the outer of right angled triangle The arc side c2 ' of lateral bend camber, straight flange a2 bend the arc side a2 ' of camber to the inner side of right angled triangle, and straight flange b2 is to straight The arc side b2 ' of the inner side bending camber of angle triangle, the figure of gained is figure N2.

In such scheme, by the way that the surface of active section 33 is specifically arranged into convex surface, the specific setting of surface Into concave surface, when such active section 33 rotates, larger-diameter revolving body can be formed and large-size is formed in revolving body Carbon dust dropping channel, so as to realize pair plus the reliable conducting of prostitute, and be easy to the carbon dust of upside smoothly quickly to drop down onto carbon In powder bottle, realize and quickly add powder.Projection in the utility model each means the projection projected along direction f on plane A.

Above-mentioned figure M1 to figure N1 deformation path, and figure M2 do not represent work to figure N2 deformation path Make the manufacture method of section 33, it is only for the cross sectional shape of sake of clarity active section 33 (projection A shape) and take one Kind expression method, it is the definition method in order to state specific structure to construct and take.Powder adding device is working of plastics, integrated injection molding Or blow molding.

Certainly in the utility model, external diameter of a circle should be less than the internal diameter of straight length in guide portion, linkage section 32 Height and the height of bottle match, and the height of active section 33 is with adding the height of prostitute 20 to match.Throwing in the utility model Shadow each means the projection projected along direction f on plane A.

Further scheme is that the end of active section 33 is arranged to spininess, is easy to powder adding device to puncture sealed membrane insertion In toner bottle.Projection B's is shaped as circular or regular polygon, can be carried out according to specific demand and ease of processing true It is fixed.The junction of linkage section 32 and active section 33 is provided with circular baffle plate 34, and plate face and the plane A of baffle plate 34 are arranged in parallel, gear The edge of plate 34 is extended to the side of linkage section 32 and is oriented to short tube 35.The rotation and pull and push that so baffle plate 34 can be to powder adding device Carry out spacing and be oriented to.Being oriented to the setting of short tube 35 further increases guidance quality.Further scheme, offer on baffle plate 34 Stomata, to eliminate the negative pressure in toner bottle.Powder adding device is formed for plastic material, and integrated injection molding, cost is very low, and Powder adding device can be recycled.

Compared by many experiments, it is preferred to use following 2 kinds of schemes are implemented：

The first scheme is：The length of side of equilateral triangle is d1, and arc side c1 ' camber is h1, and the fillet of fillet processing is partly Footpath is r, wherein：Compared by experiment, the powder adding device of above-mentioned shape relative to Traditional straight rod type (isometrical round bar or isometrical square bar) powder adding device can at least improve plus powder speed 19.2% or so.

Second scheme is：Figure M2 is equilateral right angled triangle.Straight flange a2 length of side d2, arc side a2 ' camber are h21, Arc side b2 ' camber is h22, and arc side c3 camber is h23, h21=h22, Compared by experiment, the powder adding device of above-mentioned shape is relative to traditional straight rod type (isometrical round bar or isometrical square bar) plus powder dress Put at least to improve and add powder speed 18.5% or so.

In addition, in order to further pursue plus powder speed raising efficiency, further can carry out in the following way Implement, as shown in Figure 13,14, each corner in end face that active section 33 intersects with linkage section 32 is respectively arranged with projection 331, each projection 331 are arranged at intervals around the periphery of linkage section 32, (number of projection 331 and the number in end face corner are consistent), each projection 331 Height gradually increases along direction w, and direction w is the direction identical or opposite with the rotation direction of active section 33, and each projection 331 is flat Projection C is projected as on the A of face, the outside contouring for projecting C matches with projecting A outside contouring.Although which can Further powder speed will be added to improve 2~3 percentage points on the basis of preferred embodiment 1,2, but use the measure, powder adding device Production cost has certain increase, therefore, can be implemented according to specific demand.As shown in figure 15, it is preferably second The arrangement schematic diagram of three projections 331 is set in kind embodiment on the end face of active section 33；As shown in figure 16, for preferably the first The arrangement schematic diagram of two projections 331 is set in embodiment on the end face of active section 33.

The bonus point device of above-mentioned offer, can be effective when powder adding device insertion New Type of Carbon powder bottle is added into carbon dust into toner cartridge Solve the problems, such as carbon dust blocking, avoid carbon dust from occurring the problem of leakage is polluted and wasted when adding.

The method for adding ink powder into printer using above-mentioned powder adding device and toner bottle, as shown in figure 12, including it is as follows Operating procedure：

Step S1：Toner cartridge is taken out from printer to be placed on operating desk, the meal outlet on toner cartridge waste powder hopper is opened, by useless powder The powder that given up in storehouse is poured out completely, then closes the meal outlet on waste powder hopper, then open the powder inlet in toner；

Step S2：Toner bottle is taken out, on toner bottle plus prostitute 20 is removed, removes the sealed membrane of the bottle mouth position of bottle 10 (sealed membrane 12 at non-bottom of bottle), then it will add prostitute 20 that on bottle 10, prostitute 20 will be added by toner again again In powder inlet insertion toner, toner bottle is inverted, the carbon dust in toner bottle is begun to flow in toner；

Step S3：The insertion section that powder adding device is set from the bottom of bottle of bottle 10 is inserted in bottle 10, interval rotates plus powder Device and pull and push powder adding device along the short transverse of bottle 10 so that the carbon dust in bottle 10 is flow in toner completely；

Step S4：Extract powder adding device in from bottle 10 out, continued to employ with paper handkerchief wiped clean, remove the toner bottle for adding powder, Then the powder inlet of toner is closed, toner cartridge is reloaded into printer.

Further scheme is：In step S3, the port lid at bottom of bottle through hole 11 is removed, powder adding device is inserted at through hole 11 Enter in bottle 10.Or in step S3, the sealed membrane 12 at bottom of bottle through hole 11 is punctured with powder adding device, powder adding device is inserted It is flat internal.

Such scheme, it is possible to achieve carbon dust is quickly added into printer, avoids carbon dust excessive in adding procedure, realizes selenium Bulging cleaning adds powder.

The utility model is the improvement carried out on the basis of traditional toner bottle, and the production cost of toner bottle hardly increases Add, the production cost of powder adding device is also extremely low, and can effectively solve the problem that when traditional toner bottle adds powder that carbon dust is easy to blocking and caused The problem of pollution, it may be said that achieve significant effect, can widely be promoted the use of, solve and add powder people in background technology Member wants to solve the problems, such as always.

Described above is only preferred embodiment of the present utility model, it is noted that for the common skill of the art ,, can be with the premise of the utility model principle is not departed from after content described in the utility model is known for art personnel Some equal conversion are made to it and are substituted, these, which convert and substituted on an equal basis, also should be regarded as belonging to protection model of the present utility model Enclose.

Claims (7)

1. add the powder adding device of powder for printer, it is characterised in that：Including active section, linkage section and holding section, section is connected Between active section and holding section, active section is projected as projecting A on plane A, and plane A is and the perpendicular arrangements of direction f One plane, direction f are powder adding device short transverse, and holding section being projected as on plane A projects B, projects A shape and figure Shape N1 shape is consistent, and figure N1 is that figure M1 deforms to obtain by the following method：

Figure M1 is equilateral triangle, including while a1, while b1 and side c1, by the side c1 of equilateral triangle to triangle interior bend The arc side c1 ' of camber, while a1 and while b1 junctions carry out fillet processing after gained figure be figure N1.

2. the powder adding device according to claim 1 for adding powder for printer, it is characterised in that：The length of side of equilateral triangle is D1, arc side c1 ' camber are h1, and the radius of corner of fillet processing is r, wherein：

3. the powder adding device according to claim 2 for adding powder for printer, it is characterised in that：The end of active section is set Into spininess, project B is shaped as circular or regular polygon.

4. add the powder adding device of powder for printer, it is characterised in that：Including active section, linkage section and holding section, section is connected Between active section and holding section, active section is projected as projecting A on plane A, and plane A is and the perpendicular arrangements of direction f One plane, direction f are powder adding device short transverse, and holding section being projected as on plane A projects B, projects A shape and figure Shape N2 shape is consistent, and figure N2 is that figure M2 deforms to obtain by the following method：

Figure M2 is right angled triangle, including straight flange a2, straight flange b2 and hypotenuse c2, the outer lateral bending by hypotenuse c2 to right angled triangle The arc side c2 ' of bent camber, straight flange a2 bend the arc side a2 ' of camber to the inner side of right angled triangle, and straight flange b2 is to right angle three The arc side b2 ' of angular inner side bending camber, the figure of gained is figure N2.

5. the powder adding device according to claim 4 for adding powder for printer, it is characterised in that：Figure M2 is equilateral right angle Triangle.

6. the powder adding device according to claim 5 for adding powder for printer, it is characterised in that：Straight flange a2 length of side d2, Arc side a2 ' camber is h21, and arc side b2 ' camber is h22, and arc side c3 camber is h23, h21=h22,

7. the powder adding device according to claim 6 for adding powder for printer, it is characterised in that：The end of active section is set Into spininess, project B is shaped as circular or regular polygon.