CN1696840A - Magnetic roller of display device in printer - Google Patents
Magnetic roller of display device in printer Download PDFInfo
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- CN1696840A CN1696840A CN 200410037829 CN200410037829A CN1696840A CN 1696840 A CN1696840 A CN 1696840A CN 200410037829 CN200410037829 CN 200410037829 CN 200410037829 A CN200410037829 A CN 200410037829A CN 1696840 A CN1696840 A CN 1696840A
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- magnetic
- magnetic pole
- pole piece
- rollers
- wheel body
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Abstract
A magnetic contact roller of developing device on printer consists of a roller body, multiple S magnetic poles and N magnetic poles as well as a shaft of the roller. It is prepared as using noncyindrical body as roller body i e hollowing out area between two adjacent magnetic poles for making magnetism angle of magnetic poles on magnetic contact roller more accurate, magnetic force more efficient.
Description
Technical field
The magnetic rollers of the relevant a kind of printer display of the present invention is meant a kind of material cost that can significantly reduce this magnetic rollers wheel body itself especially, and can reaches the magnetic rollers of the printer display that magnetic angular is more accurate, magnetic intensity is stronger.
Background technology
The Equipment for forming image part of laser printer as shown in Figure 1, comprising: a sensitization hub 11, in order to the wheel hub of induction light; One cloth torch 12 is located at the side near sensitization hub surface, uses so that sensitization hub surface distributed induction static; One exposure device 13 is located at than the end in addition away from sensitization hub and cloth torch, can launch laser light with the effect of exposing because of the signal that receives the self imaging reader, makes sensitization hub surface form exposure region and the non-exposed area identical with the image of image reader; One powder box device 14 is located at the in addition side of sensitization hub, is positioned at the back fragment position after the exposure device action, in order to storing of carbon dust to be provided; One magnetic rollers 15, its outside sheathed video picture sleeve pipe 16 is located at powder box outlet front end, and near the position of sensitization hub.When carbon dust is subjected to the attraction of magnetic rollers magnetic force and is laid in sleeve pipe 16 outer surfaces, be rotated further and after having the exposure region induction of static with sensitization hub 11 surfaces at sleeve pipe 16, carbon dust is adsorbed to sensitization hub surface again, bring transfer area into via sensitization hub 11, and utilize carbon dust adsorbent equipment 17 to make the magnetic Boulez consistent to paper surface with font of desiring to print off or figure and picture, reach the formation of image.
The Equipment for forming image of above-mentioned printer, wherein the whether good quality of printing for paper of magnetic rollers has significant impact, the magnetic rollers of commonly seeing as shown in Figure 2, it has a wheel body 21 of itself not having electric conductivity, wheel body is made moulding with materials such as rubber or plastics or other artificial resins, location interval near the outer rim circumference on wheel body 21 is formed with most S magnetic pole piece 22a, 22b ... and N magnetic pole piece 23a, 23b ... S magnetic pole piece 22a, 22b and N magnetic pole piece 23a, 23b is generally and is oppositely arranged, thus magnetic its can be four utmost points, the setting of dipole number such as the sextupole or the ends of the earth.And the magnetism stick that traditional a kind of practice makes the outer end be provided with S magnetic pole piece and N magnetic pole piece is established to wheel body (as the U.S. the 4th, 517,719 with the mode group of intercalation; 6,654, No. 582 patent cases).In addition to make rule one-body molded for cylinder with material mictomagnetism materials such as magnetic material mixed rubber or plastics or other artificial resins, and in moulding, in wheel external body precalculated position wheel body is carried out excitation with excitation unit, make wheel surface with respect to excitation unit form most S magnetic pole pieces and N magnetic pole piece (as the U.S. the 5th, 129, No. 358 patent cases).
Yet, no matter S magnetic pole piece and N magnetic pole piece are to be mounted on wheel body or integrally formed with wheel body in the mode with the magnetism stick intercalation, the whole cost of magnetic rollers is all quite high, and why high the cost of this magnetic rollers is, except the suitable costliness of the material of wheel body own, then be that to be to make magnetic angular, magnetic intensity and the magnetic flatness of S magnetic pole piece on the wheel body and N magnetic pole piece to close in the technology of the demand of printer quite accurate on the other hand.And, if the formation of S magnetic pole piece and N magnetic pole piece is to be mounted on wheel body in the mode that magnetism stick is intercalated in the recessed structure that formed on the wheel body, not only can increase the problems on the combined density, also increase the inconvenience in the assembling and cause serviceable life short.And the also still essential problem that solves magnetic angular, magnetism intensity and planarization of each magnetism stick.
When if S magnetic pole piece and N magnetic pole piece are the opposite edges that are formed on the one-body molded wheel body, then have magnetic material powder (small magnet) can't be exactly by assortment with magnetic line of force consistent location, so in zone such as magnetic pole piece side (as the A of Fig. 3, B, C, the D zone) and even the zone of wheel body middle body still have the Magnaglo (small magnet) 24 (as shown in Figure 3) of irregular alignment, cause the magnetic line of force meeting of S magnetic pole piece and N magnetic pole piece disturbed, and cause the magnetic angular of magnetic pole piece, magnetism intensity and magnetic flatness are affected and have a greatly reduced quality, and can have influence on the magnetic force configuration of whole magnetic rollers, cause the magnetic material of roller magnetized not exclusively, even the therefore reduction of the magnetic life-span of whole roller, can't adsorb carbon dust exactly and obtain gratifying print quality in accurate position.
In view of this, the inventor is at the road of this shortcoming research improvement, and research improves when long, and generation of the present invention is arranged finally.
Summary of the invention
The object of the present invention is to provide a kind of magnetic rollers of printer display, magnetic rollers according to this kind printer display of the present invention, it is formed in one and gets, magnetic rollers is non-circular body also, and only the magnetic pole piece of S or N is formed convex shape, make S magnetic pole piece and N magnetic pole piece between the zone can greatly reduce, the cost of magnetic rollers is greatly to reduce.
An of the present invention purpose is to plant according to this magnetic rollers of printer display, because magnetic pole piece forms the state of outside protrusion, and the result that greatly reduce in the zone between S magnetic pole piece and the N magnetic pole piece, the magnetic line of force of magnetic pole piece is more concentrated in the time of can making excitation, magnetic material powder (small magnet) irregular alignment and disturb the situation of magnetic pole piece to reduce, the magnetic intensity of S magnetic pole piece and N magnetic pole piece is more increased, and can improve the magnetized effect of carbon dust, and then promote print quality.
A further object of the present invention is to plant according to this magnetic rollers of printer display, because the S magnetic pole piece of magnetic rollers and the position of N magnetic pole piece are fixed, magnetic angular is fixing thereupon, and the precision of its magnetic angular more shape improves.
The technological means that the present invention adopts for achieving the above object is: a kind of magnetic rollers of printer display comprises: a wheel body, mix to get with the one-body molded making of magnetic material with rubber or plastics or other artificial resin etc.; An and wheel shaft that is arranged in wheel body central authorities; It is characterized in that: most S magnetic pole pieces and N magnetic pole piece protrude the outer ring that is formed at wheel body, and also form the state of depression between adjacent two magnetic pole pieces.
Arc-shaped surface with evagination between the base portion of two adjacent magnetic pole pieces of described wheel body joins.
Join with the indent arcwall face between the base portion of two adjacent magnetic pole pieces of described wheel body.
The surface of described S magnetic pole piece and N magnetic pole piece is the circular arc of same curvature.
The surface of described S magnetic pole piece and N magnetic pole piece is the circular arc of same curvature.
The surface of described S magnetic pole piece and N magnetic pole piece is the circular arc of same curvature.
As for detailed construction of the present invention, application principle, effect and effect, then can be understood completely with reference to the explanation that following accompanying drawing is done.
Description of drawings
Fig. 1: be the arrangement plan of printer display of commonly seeing.
Fig. 2: be the schematic perspective view of magnetic rollers of printer display of commonly seeing.
Fig. 3: be the plane schematic illustration of the magnetic line of force between the magnetic rollers pole magnetization portion of printer display and the magnetic pole piece of commonly seeing.
Fig. 4: be magnetic rollers moulding excitation actuating synoptic diagram of the present invention.
Fig. 5: be magnetic rollers floor map of the present invention.
Fig. 6: be magnetic rollers schematic perspective view of the present invention.
Fig. 7: the floor map that is the sheathed sleeve pipe of magnetic rollers of the present invention.
Fig. 8: be the explanation synoptic diagram that magnetic rollers of the present invention is saved material.
Fig. 9: be another enforcement illustration of magnetic rollers of the present invention.
Figure 10: the stereographic map that is Fig. 9 another embodiment of magnetic rollers of the present invention.
Embodiment
The magnetic rollers of this kind printer display of the present invention as Fig. 4, Fig. 5, shown in Figure 6, comprising:
One cylinder shape wheel body 3 mixes to get with the one-body molded making of magnetic material with rubber or plastics or other artificial resin;
The skin of wheel body 3, most individual S magnetic pole piece 41,42 and N magnetic pole piece 51,52 that formation is outwards protruded from center position are so S magnetic pole piece 41,42 and N magnetic pole piece 51,52 are along the direction of principal axis formation strip of wheel body; And a wheel shaft 6 is arranged in wheel body central authorities.
Wherein, the formation of a described majority S magnetic pole piece 41,42 and N magnetic pole piece 51,52, behind wheel body 3 ejection formations, still before unhardened, respectively the bossing of magnetic rollers is carried out the excitation effect respectively with several alignment apparatus 61,62,63,64, make projection partly form S magnetic pole piece and N magnetic pole piece respectively; The wheel body of finishing thus is the S magnetic pole piece 41,42 with evagination and the magnetic rollers of N magnetic pole piece 51,52.Magnetic rollers so, integral body is the non-cylindrical body, and the zone between S magnetic pole piece and the N magnetic pole piece 71,72,73,74 becomes recessed state for hollow out.
Above-mentioned integrated magnetic rollers, when being implemented on displaies such as printer, as shown in Figure 7, its wheel body 3 outside sleeve pipes 8 that coat, because zone 71,72,73,74 is the state of depression between its each S magnetic pole piece 41,42 and the N magnetic pole piece 51,52, so the expensive material of whole magnetic rollers can greatly reduce the cost (as shown in Figure 8) of the roller that can greatly deperm; And, is protruding sunken state with this in non-magnetic pole piece zone, promptly can not cause interference to the magnetic line of force of magnetic pole piece, so the magnetic intensity of the magnetic pole piece of magnetic rollers can greatly increase, fixing because of the position system of magnetic pole piece again, and can reach magnetic angular effect more accurately.
Another embodiment of the present invention such as Fig. 9 and shown in Figure 10, when S magnetic pole piece 41,42 and N magnetic pole piece 51,52 is when outwards forming the protrusion state, can make that the depression radian between the two adjacent magnetic pole pieces is consistent with the magnetic line of force between the two, so, when in the wheel external body with alignment apparatus (ordering device) when magnetic pole piece is carried out excitation, not only can magnetize S magnetic pole piece and N magnetic pole piece according to vertical direction, and because of the magnetic line of force between adjacent two magnetic pole pieces consistent with magnetic rollers indent camber line, so the situation of Magnaglo (small magnet) irregular alignment can significantly reduce, the magnetic intensity of magnetic rollers can significantly increase.
Because the position of magnetic pole piece is fixed, the magnetic angular of magnetic rollers is more accurate again.The magnetic rollers of this embodiment, it is not wished to give magnetized position and forms recessed and not in the scope of the magnetic line of force, so the magnetic line of force is more concentrated, magnetic intensity more strengthens, the omission of its material more increases than last embodiment, and the reduction of magnetic rollers cost is more had contribution.
Magnetic rollers of the present invention, when its S magnetic pole piece and N magnetic pole piece are paired, can be have four, six etc. even number of poles portion, and the surface of magnetic pole piece and become circular arc.
In sum, the magnetic rollers of this kind printer display of the present invention, by making integrated magnetic rollers is that the non-cylindrical body has only the magnetic pole piece of S or N to be the state of evagination, so can make zone between S magnetic pole piece and the N magnetic pole piece become the state of depression, the magnetic angular that can effectively reach magnetic rollers is more accurate, magnetic intensity more promotes, and the cost effect that can significantly reduce, and it is not seen in public use, close regulation in Patent Law, earnestly ask the gift quasi patent, real be moral just.
Need Chen Ming, the above is the preferable specific embodiment of the present invention, if comply with the change that conception of the present invention is done, and when the function that it produced does not exceed instructions and graphic contain spiritual yet, all should be within the scope of the invention.
Claims (6)
1, a kind of magnetic rollers of printer display comprises: a wheel body, mix to get with the one-body molded making of magnetic material with rubber or plastics or other artificial resin; An and wheel shaft that is arranged in wheel body central authorities; It is characterized in that: most S magnetic pole pieces and N magnetic pole piece protrude the outer ring that is formed at wheel body, and between adjacent two magnetic pole pieces and be the state that forms depression.
2, the magnetic rollers of a kind of printer display as claimed in claim 1 is characterized in that: the arc-shaped surface with evagination between the base portion of two adjacent magnetic pole pieces of described wheel body joins.
3, the magnetic rollers of a kind of printer display as claimed in claim 1 is characterized in that: join with the indent arcwall face between the base portion of two adjacent magnetic pole pieces of described wheel body.
4, the magnetic rollers of a kind of printer display as claimed in claim 1 is characterized in that: the surface of S magnetic pole piece and N magnetic pole piece is the circular arc of same curvature.
5, the magnetic rollers of a kind of printer display as claimed in claim 2 is characterized in that: the surface of S magnetic pole piece and N magnetic pole piece is the circular arc of same curvature.
6, the magnetic rollers of a kind of printer display as claimed in claim 3 is characterized in that: the surface of S magnetic pole piece and N magnetic pole piece is the circular arc of same curvature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410037829 CN1696840A (en) | 2004-05-11 | 2004-05-11 | Magnetic roller of display device in printer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410037829 CN1696840A (en) | 2004-05-11 | 2004-05-11 | Magnetic roller of display device in printer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1696840A true CN1696840A (en) | 2005-11-16 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410037829 Pending CN1696840A (en) | 2004-05-11 | 2004-05-11 | Magnetic roller of display device in printer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1696840A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101286027B (en) * | 2007-04-13 | 2010-09-29 | 夏普株式会社 | Developing unit and image forming apparatus |
| CN102354252A (en) * | 2011-07-01 | 2012-02-15 | 邢皓宇 | Operating handle |
| CN104777732A (en) * | 2014-01-15 | 2015-07-15 | 芜湖佳诚电子科技有限公司 | Development magnetic core for digital duplicator and laser printer |
| CN109219342A (en) * | 2018-10-25 | 2019-01-15 | 浙江大学 | Continuous rolling type magnetic control transfers seal, transferring system and method |
-
2004
- 2004-05-11 CN CN 200410037829 patent/CN1696840A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101286027B (en) * | 2007-04-13 | 2010-09-29 | 夏普株式会社 | Developing unit and image forming apparatus |
| CN102354252A (en) * | 2011-07-01 | 2012-02-15 | 邢皓宇 | Operating handle |
| CN104777732A (en) * | 2014-01-15 | 2015-07-15 | 芜湖佳诚电子科技有限公司 | Development magnetic core for digital duplicator and laser printer |
| CN109219342A (en) * | 2018-10-25 | 2019-01-15 | 浙江大学 | Continuous rolling type magnetic control transfers seal, transferring system and method |
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