CN101492131A - Medium deflexion correction mechanism - Google Patents
Medium deflexion correction mechanism Download PDFInfo
- Publication number
- CN101492131A CN101492131A CNA2008100261006A CN200810026100A CN101492131A CN 101492131 A CN101492131 A CN 101492131A CN A2008100261006 A CNA2008100261006 A CN A2008100261006A CN 200810026100 A CN200810026100 A CN 200810026100A CN 101492131 A CN101492131 A CN 101492131A
- Authority
- CN
- China
- Prior art keywords
- medium
- correction
- deflexion
- deflection
- return unit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H9/00—Registering, e.g. orientating, articles; Devices therefor
- B65H9/004—Deskewing sheet by abutting against a stop, i.e. producing a buckling of the sheet
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H9/00—Registering, e.g. orientating, articles; Devices therefor
- B65H9/06—Movable stops or gauges, e.g. rising and falling front stops
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2404/00—Parts for transporting or guiding the handled material
- B65H2404/60—Other elements in face contact with handled material
- B65H2404/61—Longitudinally-extending strips, tubes, plates, or wires
- B65H2404/611—Longitudinally-extending strips, tubes, plates, or wires arranged to form a channel
- B65H2404/6111—Longitudinally-extending strips, tubes, plates, or wires arranged to form a channel and shaped for curvilinear transport path
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2801/00—Application field
- B65H2801/03—Image reproduction devices
- B65H2801/06—Office-type machines, e.g. photocopiers
Landscapes
- Registering Or Overturning Sheets (AREA)
Abstract
The invention relates to a medium deflection correcting mechanism, which is used for imaging equipment. The medium deflection correcting mechanism comprises a deflection correcting piece which is arranged on a driving shaft, is capable of free rotating and is provided with a deflection correcting part and a connecting part; the deflection correcting part is used for stopping feeding a medium and correcting medium deflection; and the connecting part is connected with a repositioning piece which can load torque to the deflection correcting piece. When the medium is fed continuously and overcomes the torque finally, the deflection correcting piece rotates, and because the position of the repositioning piece is moved, the loaded torque starts to reduce when the medium bumps away the deflection correcting part. Thus, the deflection correcting part and the force acting on the medium are reduced, and the medium deflection correcting mechanism can avoid damaging the medium in the process of correcting the deflection.
Description
Technical field
The present invention relates to the media transportation mechanism in the imaging devices such as a kind of chopping machine, scanner, more particularly, relate to a kind of medium deflexion correction mechanism.
Background technology
When printing, scanning; sometimes because medium is put the influence of factors such as deflection, roller assembling tolerance; and cause its printing or scan crooked image, for avoiding the generation of this situation, can before entering printing or scanning area, medium make the deflection of eliminating medium in various manners usually.
US Patent specification US6011948 has disclosed the deviation correcting device in a kind of imaging device, referring to Figure 10, shown in Figure 11, this deviation correcting device comprises correction assembly 15 and attaching parts 16, a plurality of correction assemblies 15 are connected as a single entity by attaching parts 16, and this deviation correcting device is loaded on the axle drive shaft 18 of roller 13 rotationally, the torsion spring 24 1 end 24b at these device two ends act on attaching parts 16, the medium S leading edge that is transmitted contacts with the correction face 20a of correction assembly 15, medium S forms a predetermined bending in the process that promotes correction assembly 15, correction assembly 15 is then after turning an angle under the promotion of medium S, the medium deflection is repaired, after medium S passes roller set, under the effect of torsion spring 24, correction assembly 15 will be replied initial position.This deviation correcting device structure is simple relatively, cost is lower, but the part that also comes with some shortcomings, and when passing roller set, deviation correcting device will apply a bigger power to medium S under the effect of torsion spring 24 such as medium S, easy like this medium S is caused damage.And because of this deviation correcting device integral body is loaded on the axle drive shaft 18, then because of the roller assembling deflection that tolerance produced, this device can't be corrected.In addition, medium S leading edge is touching correction during assembly 15, on one side feeding carry out deflection rectify correction on one side, correct poor effect.
Summary of the invention
The technical matters that the present invention will solve provides a kind of medium deflexion correction mechanism, and after the medium deflection was repaired, and its leading edge arrives the clamping gap location of roller set, correcting mechanism disappeared to the application force of medium, can avoid medium is caused damage.
For solving the problems of the technologies described above, medium deflexion correction mechanism of the present invention comprises: an axle drive shaft be installed on the support body of image processing system, and this axle drives rotation by motor; One driving wheel is installed on this axle drive shaft, and rotates with this axle drive shaft; One flower wheel is to relatively rotate with this driving wheel, forms the clamping gap, with driving medium; One correction part, be arranged on this axle drive shaft, be positioned at the direction of feed of medium, can freely rotate around this axle drive shaft at installed position, this correction part has correction position and releasing position, described correction part is positioned at the correction position, stop feeding medium also to correct the medium deflection, and described correction part is positioned at the place, releasing position, passes through feeding medium.
Wherein, this correction part has a junction, and this connecting portion is connected with described return unit; This correction part also has a correction portion, and this correction portion is in order to stop feeding medium and to correct the medium deflection.
This correction portion is a projection.
Contacted of this correction portion and medium are a plane, with the deflection of better correction medium, and are alignd.
This medium deflexion correction mechanism also comprises a locating part, selectively contacts with return unit, to stop the rotation of return unit.
This locating part is one to be projected on this support body, for block designs.
This return unit is an equilibrate counterweight.
This equilibrate counterweight and this connecting portion are integrally formed.
After having adopted this spline structure of the present invention, before medium is fed to the clamping gap of driving wheel and flower wheel along the feeding path, touch the correction part be arranged in the feeding path be in the correction position correction portion, obstruct medium leading edge stagnation when feeding, because medium continues to be fed, cause the deflection of medium to be repaired and to align, working as medium this moment constantly is fed, medium can form crooked in the feeding path, form a pushing tow power and be enough to overcome also jack-up correction portion, final medium is broken through correction portion, and around drive shaft turns, with by the correction rotated position to open position, thereby make the clamping gap of medium by driving wheel and flower wheel, this moment, the equilibrate counterweight of the other end constantly rotated to being tending towards vertical direction during by the clamping gap at medium, the torsion that this clump weight is written into to the correction part constantly reduces, be medium when passing through, correction portion disappears to the application force of medium, thereby avoids medium is caused damage.When medium breaks away from fully behind the clamping gap, this equilibrate counterweight part of will rectifying a deviation turns to the trend of correction position, so that correct medium deflection next time.
Description of drawings
The present invention will be further described in detail below in conjunction with the drawings and specific embodiments:
Fig. 1 is for adopting the scanner paper feed mechanism structural representation of the better embodiment of medium deflexion correction mechanism of the present invention;
Fig. 2 is the structural representation of this better embodiment medium deflexion correction mechanism;
Fig. 3 is the structural representation that correction part shown in Figure 2 is connected with return unit;
Fig. 4 is the lateral plan of the better embodiment of medium deflexion correction mechanism of the present invention;
Fig. 5～Fig. 9 is each operating state schematic side view of correcting mechanism shown in Figure 2;
Figure 10 is the section drawing of background technology deviation correcting device; And
Figure 11 is the amplification stereogram of A1 part among Figure 10.
The specific embodiment
The present invention is further detailed explanation below in conjunction with accompanying drawing:
Fig. 1 is the structural representation that has adopted the first embodiment medium deflexion correction mechanism in the scanner paper feed mechanism, includes the medium M of storehouse in paper feeding plate 210.Initiating terminal place in the feeding path of medium is a pickup roller 230, and this pickup roller 230 can take out medium M seriatim from paper feeding plate 210, and sends medium transfer path 243 to, via feeding roller 220 medium M is pressed the F direction along transfer path 243 feedings.And by after driving wheel 246 and the flower wheel 247, scan through scan module 200, by going out paper roller 250 medium of been scanned is sent to paper discharge tray 260 at last.This transfer path 243 is provided with driving wheel 246 and flower wheel 247, and with this driving wheel 246 bonded assemblys correction part 244.
See also Fig. 2, axle drive shaft 245 is arranged on the scanner support body (frame), this driving wheel 246 is installed on the axle drive shaft 245 and is driven by the motor (not shown), this flower wheel 247 is positioned at the downside of driving wheel 246, and relatively rotate with it and form clamping gap (nip), in order to clamping medium, transmission it.This correction part 244 is installed on this axle drive shaft 245 and according to axle drive shaft 245 and rotates for the axle center, and is positioned at the outside of driving wheel 246.
See also Fig. 3, this correction part 244 has mounting hole 101, and be socketed on the axle drive shaft 245, this correction part has correction position and releasing position, at these correction part 244 upper process correction portion 242 is arranged, this correction portion 242 is a projection, and stretches among the feeding path 243, and is positioned at before the clamping gap of driving wheel 246 and flower wheel 247; This correction part also has a coupling end 241.Wherein, this correction position i.e. correction portion 242 has the initiative before the wheel 246 and the clamping gap of flower wheel 247, block media M feeding, and correct the medium deflection; And to be medium M rush open correction portion 242 in the releasing position, makes that it can be by the clamping gap of driving wheel 246 and flower wheel 247.
See also Fig. 3, Fig. 4, with the correction part 244 connecting portion 241 bonded assemblys be a return unit, and this connecting portion 241 is positioned at the opposite side of correction part 244, and this return unit is a clump weight 100, and this clump weight 100 and this connecting portion 241 are integrally formed and have trend to inclinations of feeding medium direction, and this clump weight 100 is written into a moment of torsion for the part 244 of rectifying a deviation.It is a projection limiting stopper 111 that the rear place that is positioned at support body 214 belows, clump weight 100 is provided with a locating part, makes clump weight 100 that correction part 244 is rotated backward, to such an extent as to can't normal operation.
In the present embodiment, because the blocking surface 243 that the correction portion 242 that is convexly equipped with on the outside face because of correction part 244 adjacent connection end faces contacts with medium is a plane, so much the better contacts with medium, and corrects its deflection with alignment.
See also Fig. 5, in the feeding medium process,, the medium M that is transmitted touches the block face that is planar design 243 of correction portion 242 earlier if producing deflection with one jiao of its feeding leading edge, before then one jiao of this feeding leading edge stops not by block face 243, this moment, medium M continued in feeding, and its other end also reaches and touch the block face 243 of the correction portion of its correspondence position.This moment, medium M was rectified a deviation before the supply side of part 242 stops not, and that the medium M in feeding this moment imposes on the application force of correction part 244 is not enough so that correction part 244 overcomes the moment of torsion of the loading of clump weight 100, so be not rotary state.
Medium M still continues the feeding start under the effect of feeding roller 220, to such an extent as to medium M can form a curve gradually in feeding path 243, see also Fig. 6, behind the block face 243 that pastes neat correction portion 242 when medium M leading edge fully, the deflection of promptly reaching medium M is repaired.Subsequently, the medium M that constantly is fed increases gradually to the propelling thrust of correction portion 242, to such an extent as to it has overcome the moment of torsion that clump weight 100 is written into and the deadweight of correction part, and the correction portion 242 of bump correction part 244, cause correction part 244 to begin to rotate, and medium M its leading edge under the continuous action of feeding roller 220 can be pasted neat with correction portion 242 all the time, after correction part 244 rotates, clump weight 100 also can rotate thereupon, because the rotation of this clump weight 100, it is with the distance minimizing of axle drive shaft 245 axial lines and reduce to such an extent as to it loads the moment of torsion of giving correction part 244.So the moment of torsion that clump weight is written on the correction part 244 is constantly reducing.And just since this resistance that is written into constantly reduce until hour, the application force that causes contacting 242 couples of medium M of correction portion with medium M also reduces gradually, see also Fig. 7, the supply side of the medium M that continues to be fed enters the clamping gap location of driving wheel 246 and flower wheel 247, will be by driving wheel 246, flower wheel 247 associating feedings.
Continuous Fig. 8, Fig. 9 of seeing also, medium M is united by driving wheel 246 and flower wheel 247 and sends, correction part 244 turns to the releasing position by the correction position, and then driving wheel 246, flower wheel 247 will be sent to scanning element 200 to the medium M that deflection has been repaired, to form image.Correction part 244 returns the correction position in this process.
In this process, along with the rotation of correction part 244, the moment of torsion that imposes on the correction part with correction part 244 integrated clump weights 100 also reduces gradually, and the resistance of 244 couples of medium M of correction part also reduces thereupon.When medium M by driving wheel 246, when flower wheel 247 is sent fully, away from the correction portion 242 of the correction position of original correction part 244, because its deadweight can be toward this correction position motion, this moment, clump weight 100 also can constantly increase the moment of torsion that correction part 244 is written into, make the correction part 244 by the releasing position to the correction rotated position, transfer back to the correction position before can making correction part 244, promptly correct medium deflection next time.
What clump weight 100 rotated in the process of correction part 244 recurrence correction positions might surpass balance position, and the part 244 of promptly rectifying a deviation can might be crossed its original correction position.Be anti-defective here, establish a limiting stopper 111 at place, clump weight rear position and take on locating part, can not cross balance position, thereby guarantee its former correction position that is returned to that correction part 244 can be stable so that work as the rotation of clump weight 100.
Need to prove, the present invention's medium deflexion correction mechanism not only can be applicable to also can be used for chopping machine, automatic paper feeder, in the machines such as duplicator in the paper feed mechanism of scanner, and can be used for the single face paper feed mechanism, also can be used for two-sided paper feed mechanism.Described medium can be a paper, document, but analogues such as load image such as photo papers.
Certainly, structures such as above-mentioned correction part of conversion and/or clump weight specifically all drop within protection scope of the present invention.
Claims (8)
1. medium deflexion correction mechanism comprises:
One axle drive shaft is installed on the support body of image processing system, and this axle drives rotation by motor;
One driving wheel is installed on this axle drive shaft, and rotates with this axle drive shaft;
One flower wheel relatively rotates with this driving wheel, forms the clamping gap, with driving medium;
One correction part is arranged on this axle drive shaft, is positioned at the direction of feed of medium, and is free to rotate, this correction part has correction position and releasing position, and described correction part is positioned at the correction position, corrects the medium deflection, when described correction part is positioned at the place, releasing position, pass through feeding medium;
One return unit is connected with this correction part, so that the loading moment of torsion to be provided, this correction part is located by correction rotated position to releasing position.
2. the medium deflexion correction mechanism according to claim 1 is characterized in that this correction part has a junction, and this connecting portion is connected with described return unit; This correction part also has a correction portion, and this correction portion is in order to suitable prevention feeding medium and correct the medium deflection.
3. medium deflexion correction mechanism according to claim 2 is characterized in that this correction portion is a projection.
4. medium deflexion correction mechanism according to claim 2 is characterized in that contacted of this correction portion and medium are a plane.
5. medium deflexion correction mechanism according to claim 1 is characterized in that this medium deflexion correction mechanism also comprises a locating part, selectively contacts with return unit, to stop the rotation of return unit.
6. medium deflexion correction mechanism according to claim 1 is characterized in that this locating part is one to be projected on this support body, is a block.
7. medium deflexion correction mechanism according to claim 2 is characterized in that the connecting portion of described return unit and described return unit is integrally formed.
8. medium deflexion correction mechanism according to claim 1 is characterized in that this return unit is an equilibrate counterweight.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100261006A CN101492131A (en) | 2008-01-26 | 2008-01-26 | Medium deflexion correction mechanism |
| US12/127,772 US20090189338A1 (en) | 2008-01-26 | 2008-05-27 | De-skew mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100261006A CN101492131A (en) | 2008-01-26 | 2008-01-26 | Medium deflexion correction mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101492131A true CN101492131A (en) | 2009-07-29 |
Family
ID=40898409
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008100261006A Pending CN101492131A (en) | 2008-01-26 | 2008-01-26 | Medium deflexion correction mechanism |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US20090189338A1 (en) |
| CN (1) | CN101492131A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111114102A (en) * | 2020-01-15 | 2020-05-08 | 敬业（东莞）印刷包装厂有限公司 | Prevent beating colored roll conveying assembly and lithography apparatus |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5371409B2 (en) * | 2008-12-17 | 2013-12-18 | キヤノン株式会社 | Image forming apparatus |
| KR101350124B1 (en) * | 2009-10-20 | 2014-01-09 | 캐논 가부시끼가이샤 | Sheet conveying device and image forming apparatus |
| JP6322950B2 (en) * | 2013-10-17 | 2018-05-16 | 富士ゼロックス株式会社 | Conveying mechanism, image forming apparatus |
| JP2016137987A (en) * | 2015-01-29 | 2016-08-04 | 株式会社リコー | Transportation device, and image formation device |
| CN116193032A (en) * | 2021-11-29 | 2023-05-30 | 金宝电子工业股份有限公司 | Paper feeding alignment mechanism and image forming device thereof |
| CN218778424U (en) * | 2022-10-20 | 2023-03-31 | 金宝电子工业股份有限公司 | Automatic paper feeding device |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3768578B2 (en) * | 1996-01-08 | 2006-04-19 | キヤノン株式会社 | Sheet skew correcting device, sheet conveying device, and image forming apparatus |
| EP0900754B1 (en) * | 1997-09-02 | 2003-05-02 | Hewlett-Packard Company, A Delaware Corporation | An optical device for detecting the printing media in printers |
| KR100431005B1 (en) * | 2002-05-14 | 2004-05-12 | 삼성전자주식회사 | apparatus for sensing paper for use in an office machine |
| KR100788656B1 (en) * | 2004-02-26 | 2007-12-26 | 삼성전자주식회사 | Apparatus for arranging paper and electrophotographic image forming apparatus therewith |
| KR100739766B1 (en) * | 2005-12-02 | 2007-07-13 | 삼성전자주식회사 | Registration unit and Image forming apparatus adopting the same |
-
2008
- 2008-01-26 CN CNA2008100261006A patent/CN101492131A/en active Pending
- 2008-05-27 US US12/127,772 patent/US20090189338A1/en not_active Abandoned
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111114102A (en) * | 2020-01-15 | 2020-05-08 | 敬业（东莞）印刷包装厂有限公司 | Prevent beating colored roll conveying assembly and lithography apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| US20090189338A1 (en) | 2009-07-30 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20090729 |