CN101891072B - Paper feed device with function of retaining paper and scanning device using same - Google Patents
Paper feed device with function of retaining paper and scanning device using same Download PDFInfo
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- CN101891072B CN101891072B CN2009100518560A CN200910051856A CN101891072B CN 101891072 B CN101891072 B CN 101891072B CN 2009100518560 A CN2009100518560 A CN 2009100518560A CN 200910051856 A CN200910051856 A CN 200910051856A CN 101891072 B CN101891072 B CN 101891072B
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Abstract
The invention relates to a paper feed device with a function of retaining paper. The paper feed device comprises a spindle, a paper feed roller and a paper retaining mechanism, wherein the spindle can rotate towards a first direction and a second direction; the paper feed roller is arranged on the spindle and is used for feeding paper; the paper retaining mechanism is driven by the spindle to be switched between a paper retaining state and a non paper retaining state; the spindle rotates towards the first direction to lead the paper retaining mechanism to enter into the non paper retaining state so as to allow paper to be in contact with the paper feed roller; and the spindle rotates towards the second direction to lead the paper retaining mechanism to enter into the paper retaining state so as to isolate the paper from the paper feed roller. The invention also discloses a scanning device using the paper feed device.
Description
Technical field
The invention relates to a kind of paper-advance unit and scanner, especially about a kind of paper-advance unit and scanner with retaining paper function.
Background technology
Image processing arrangements such as present multi-functional things machine or scanning device all develop towards the target of miniaturization and attractive in appearanceization.Therefore, the designer possibly or reach special outward appearance demand for the volume that dwindles product, and the paper feed tray design is become horizontality, and increases paper-fetching mechanism and grasp the paper on the paper feed pallet.
Yet paper-fetching mechanism must cooperate paper blocking mechanism to operate, and enters into paper-feeding channel to avoid not crawled paper.Traditional paper blocking mechanism is normally with the paper-fetching mechanism interlock or driven by driving lever separately, and traditional paper blocking mechanism must move to first dead center, and therefore a sensor need be set guarantees whether the action of paper blocking mechanism is certain.In addition, paper blocking mechanism need cooperate spring usually or utilize the elasticity of self to be returned to retaining paper state or non-retaining paper state, therefore, needs bigger driving torsion so that paper blocking mechanism is moved to first dead center.When using the type of drive of driving lever, the cost that the increase product is set of driving lever.When using the type of drive of interlock, the pickup roller of paper blocking mechanism and paper-fetching mechanism can interact, and the variable of required consideration is more in the design, and comparatively complicated in the design, the power of CD-ROM drive motor also needs bigger.Moreover the volume after traditional paper-fetching mechanism and the paper blocking mechanism combination also can't be dwindled effectively.
Therefore, a kind of paper-advance unit and scanner that has retaining paper function easily is provided, real solution for institute of the present invention desire realization.
Summary of the invention
An object of the present invention is to provide a kind of paper-advance unit and scanner with retaining paper function, it has smaller volume and lower cost, and need not use high-performance motor to drive.
For reaching above-mentioned purpose, the present invention provides a kind of paper-advance unit with retaining paper function, and it comprises rotating shaft, paper-feed and paper blocking mechanism.Rotating shaft can be rotated towards first direction and second direction.Paper-feed is installed in the rotating shaft, in order to paper feeding.Paper blocking mechanism is driven by rotating shaft and between retaining paper state and non-retaining paper state, switches.Rotating shaft is rotated towards first direction and is made paper blocking mechanism get into non-retaining paper state, touches paper-feed to allow paper.Rotating shaft is rotated towards second direction and is made paper blocking mechanism get into retaining paper state, so that paper and paper-feed are isolated.
The present invention also provides a kind of scanner, comprises image read module, sheet feeding, paper box and paper-advance unit.Paper-advance unit is in order to grab the paper in the paper box in the sheet feeding.The sheet feeding paper feeding is through the image read module, and the image of image read module acquisition paper.Paper-advance unit comprises rotating shaft, paper-feed and paper blocking mechanism.Rotating shaft can be rotated towards first direction and second direction.Paper-feed is installed in the rotating shaft, in order to paper feeding.Paper blocking mechanism is driven by rotating shaft and between retaining paper state and non-retaining paper state, switches.Rotating shaft is rotated towards first direction and is made paper blocking mechanism get into non-retaining paper state, touches paper-feed to allow paper.Rotating shaft is rotated towards second direction and is made paper blocking mechanism get into retaining paper state, so that paper and paper-feed are isolated.
For letting the foregoing of the present invention can be more obviously understandable, hereinafter is special lifts preferred embodiment, and cooperates appended graphicly, elaborates as follows.
Description of drawings
Fig. 1 shows the scheme drawing according to the scanner of preferred embodiment of the present invention.
Fig. 2 shows the schematic perspective view according to the paper-advance unit of preferred embodiment of the present invention.
Fig. 3 shows the schematic perspective view according to first state of the paper-advance unit of preferred embodiment of the present invention.
Fig. 4 shows the side schematic view according to first state of the paper-advance unit of preferred embodiment of the present invention.
Fig. 5 shows the schematic perspective view according to second state of the paper-advance unit of preferred embodiment of the present invention.
Fig. 6 shows the side schematic view according to second state of the paper-advance unit of preferred embodiment of the present invention.
Fig. 7 shows the partial schematic diagram according to first state of the paper-advance unit of preferred embodiment of the present invention.
Fig. 8 shows the partial schematic diagram according to second state of the paper-advance unit of preferred embodiment of the present invention.
[primary clustering nomenclature]
S: paper D1: first direction
D2: second direction 10: frame assembly
12: framework 121: side
122: projection 14: side plate spare
142: the second grooves of 141: the first grooves
15: paper-feeding channel 20: rotating shaft
21: drive division 22: protuberance
23: recess 30: comber
40: pickup roller 41: main shaft
50: 51: the first bodies of paper blocking mechanism
62: the second gears of 61: the first gears
110: image read module 120: sheet feeding
130: paper box 140: paper-advance unit
150: friction element
The specific embodiment
The present invention provides a kind of paper-advance unit and the scanner that uses it with retaining paper function.Below conjunction with figs. is specified the paper-advance unit and the scanner of preferred embodiment of the present invention.
Fig. 1 shows the scheme drawing according to the scanner of preferred embodiment of the present invention.As shown in Figure 1, the scanner of present embodiment comprises pedestal 100, image read module 110, sheet feeding 120, paper box 130 and paper-advance unit 140.Image read module 110 is arranged in the pedestal 100 with sheet feeding 120.Paper box 130 is mounted on the pedestal 100 with paper-advance unit 140.Paper box 130 can be deposited plural paper S.Paper-advance unit 140 is in order to be fed to the wherein paper S in the paper box 130 in the sheet feeding 120.Sheet feeding 120 transmits paper S through image read module 110, and the image of image read module 110 acquisition paper S.
Fig. 2 shows the schematic perspective view according to the paper-advance unit of preferred embodiment of the present invention.Fig. 3 and 4 shows schematic perspective view and the side schematic view according to first state of the paper-advance unit of preferred embodiment of the present invention respectively.Shown in Fig. 1 to 4, paper-advance unit 140 comprises rotating shaft 20, paper-feed 30 and paper blocking mechanism 50.Rotating shaft 20 can be rotated towards first direction D1 and second direction D2.In the present embodiment, first direction D1 is a clockwise direction, and second direction D2 is an anticlockwise direction, and right the present invention is not subject to this.
Paper-feed 30 is mounted in the rotating shaft 20, in order to paper feeding S.In the present embodiment, paper-feed 30 is and friction element (being friction pad for example) 150 combineds action, so that single paper S is fed to sheet feeding 120.Sheet feeding 120 comprises many group rollers, in order to paper S is presented the top through image read module 110, then this paper S is exported.Paper blocking mechanism 50 is driven by rotating shaft 20 and between retaining paper state and non-retaining paper state, switch.After this details will be illustrated in.
In addition, paper-advance unit 140 can more comprise pickup roller 40 and frame assembly 10.Pickup roller 40 is in order to from paper box 130, to grasp paper S.Frame assembly 10 is mounted in the rotating shaft 20, and comprises framework 12 and and side plate spare 14.Pickup roller 40 is arranged on the frame assembly 10, and rotating shaft 20 is rotated and pickup roller 40 can be swung with respect to paper-feed 30.Whereby, pickup roller 40 can descend to grasp paper S, also can be lifted to rest on standby, and when treating that next paper needs is crawled, pickup roller 40 can descend to grasp next paper once more.Side plate spare 14 can be used for paper-advance unit 140 is fixed on the pedestal 100.
Be equiped with first gear 61 in the rotating shaft 20; Be equiped with second gear 62 on the framework 12; And be equiped with the 3rd gear 63, the second gears 62 on the main shaft 41 of pickup roller 40 be and first gear 61 and 63 interlocks of the 3rd gear, so that pickup roller 40 can swing up and down along with the rotation of rotating shaft 20.
Fig. 5 and 6 shows schematic perspective view and the side schematic view according to second state of the paper-advance unit of preferred embodiment of the present invention respectively.Shown in Fig. 3 to 6, paper-feed 30 is mounted in the framework 12 with pickup roller 40.Side plate spare 14 is mounted in the rotating shaft 20, and is articulated in framework 12, and paper blocking mechanism 50 is to be articulated on the side plate spare 14.In the present embodiment, side plate spare 14 is to be articulated on the side 121 of framework 12.Be formed with projection 122 on the side 121, side plate spare 14 has first groove 141.Projection 122 is to be contained in first groove 141, with limiting frame 12 with respect to one of side plate spare 14 anglec of rotation.Paper blocking mechanism 50 comprises first body 51 and second body 52.Paper blocking mechanism 50 can comprise cylinder 59 in addition, and it is to be contained in slidably in second groove 142 of side plate spare 14.
Fig. 7 and 8 shows respectively according to first state of the paper-advance unit of preferred embodiment of the present invention and the partial schematic diagram of second state.Shown in Fig. 7 and 8, paper-advance unit more comprises drive division 21, and it is set in the rotating shaft 20, and along with rotating shaft 20 is rotated, in order to when rotating shaft 20 is rotated, to drive first body 51.Drive division 21 has recess 23 or protuberance 22.Recess 23 or protuberance 22 that first body 51 has the other end 512 and drive division 21 interact, to drive first body 51.The end 522 that second body 52 is articulated in an end 511, the second bodies 52 of first body 51 is in order to stop the retaining paper end of paper.In the present embodiment, cylinder 59 is positioned at the other end 521 of second body 52.Drive division 21 also can have the outer ring that a plurality of recesses or protuberance compartment of terrain are distributed in drive division 21, and thus, paper blocking mechanism 50 just can immediately switch its state when rotating shaft 20 change rotation directions.
Aforesaid first state is retaining paper state, and second state is non-retaining paper state.In general; When scanner does not have when carrying out scanning sequence; Paper blocking mechanism 50 can be switched to retaining paper state, in paper box, puts the paper mistiming with the person of avoiding the use of paper is directly inserted in the crack between paper-feed and the friction pad, causes the situation of plurality of sheets of paper paper feed.And beginning to carry out scanning sequence when scanner, paper blocking mechanism 50 is just switched to non-retaining paper state, from paper box, gets paper with convenient paper-advance unit, and with paper one by one in the feed-in paper-feeding channel 15, to carry out the image scan step.When rotating shaft 20 when first direction D1 rotates, paper blocking mechanism 50 gets into non-retaining paper state, touches paper-feed 30 to allow paper S.Like Fig. 5, shown in 6 and 8; When switching to non-retaining paper state, drive division 21 rotates and drives first body 51 towards first direction D1, causes an end 522 of second body 52; The position of pressing board setting just; Because contracted with the relation of first body, 51 interlocks, and caused the barrier that the passage 30 has no from pickup roller 40 to paper-feed, therefore paper S can successfully be fed to paper-feed 30.On the contrary, when rotating shaft 20 when second direction D2 rotates, paper blocking mechanism 50 gets into retaining paper states, so that paper S is isolated with paper-feed 30, avoids in the crack between paper S entering paper-feed and the friction pad.Like Fig. 3, shown in 4 and 7, when switching to retaining paper state, drive division 21 is along second direction D2 rotation and drive first body 51, causes an end 522 of second body 52 to stretch out, and makes paper S be blocked in before the paper-feed.In the present embodiment, be different from pressing board of the prior art and be arranged on paper-feed and get in the middle of paper rolls, paper blocking mechanism of the present invention and pressing board thereof are mounted in the side of paper-feed.And pressing board of the present invention, its retaining paper width is than paper-feed or the axial width of pickup roller is much little.
Among the present invention, the action of paper blocking mechanism is to utilize the appearance structure of element to control, and the susceptibility increase of paper blocking mechanism action, and rotating shaft just can be switched the state of paper blocking mechanism as long as conversion direction rotates a little.Utilize design of the present invention, the overall volume of paper blocking mechanism can be dwindled effectively.In addition, because also need not being provided with sensor, paper-advance unit do not come sensing to guarantee correct and certain retaining paper action, so can reduce productive costs.Moreover, the action of the retaining paper of paper blocking mechanism no longer with the direct relevance of having swung up and down of pickup roller, but control the retaining paper action of paper blocking mechanism by the rotation direction of rotating shaft.Paper blocking mechanism is to be independent of swing component (frame assembly and pickup roller), and does not have relevance with the angle of frame assembly.Therefore, when presenting plural paper, frame assembly and pickup roller can not need swing up and down, but keep always and the paper state of contact, and whether the rotation of pickup roller can determine whether to grasp paper.Moreover the motor that drives paper blocking mechanism can not need overcome bigger torsion, and the paper blocking mechanism of the required driving of motor is in light weight, therefore can avoid causing the risk of motor stall.
The specific embodiment that in the detailed description of preferred embodiment, is proposed is only in order to convenient explanation technology contents of the present invention; But not with narrow sense of the present invention be limited in the foregoing description; In the situation that does not exceed spirit of the present invention and claim; The many variations of being done is implemented, and all belongs to scope of the present invention.
Claims (11)
1. the paper-advance unit with retaining paper function is characterized in that, comprises:
Rotating shaft can be rotated towards first direction and second direction;
Paper-feed is installed in the said rotating shaft, in order to paper feeding; And
Paper blocking mechanism is driven by said rotating shaft and between retaining paper state and non-retaining paper state, switches, wherein:
Said rotating shaft is rotated towards said first direction and is made said paper blocking mechanism get into said non-retaining paper state, touches said paper-feed to allow said paper; And
Said rotating shaft is rotated towards said second direction and is made said paper blocking mechanism get into said retaining paper state, so that said paper and said paper-feed are isolated.
2. paper-advance unit as claimed in claim 1 is characterized in that, also comprises drive division, is set in the said rotating shaft, in order to when said rotating shaft is rotated, drives said paper blocking mechanism.
3. paper-advance unit as claimed in claim 2 is characterized in that said drive division has recess, in order to drive said paper blocking mechanism.
4. paper-advance unit as claimed in claim 2 is characterized in that said drive division has protuberance, in order to drive said paper blocking mechanism.
5. paper-advance unit as claimed in claim 2 is characterized in that, said paper blocking mechanism comprises:
First body, said first body receives said drive section drives; And
Second body is articulated in an end of said first body, and an end of said second body is retaining paper end.
6. paper-advance unit as claimed in claim 1 is characterized in that, also comprises:
Pickup roller is in order to grasp said paper; And
Frame assembly is installed in the said rotating shaft, and wherein said pickup roller is arranged on the said frame assembly, and said rotating shaft is rotated and said pickup roller can be swung with respect to said paper-feed.
7. paper-advance unit as claimed in claim 6 is characterized in that, said frame assembly comprises:
Framework, said paper-feed and said pickup roller are mounted in the said framework; And
Side plate spare is installed in the said rotating shaft, and is articulated in said framework, and said paper blocking mechanism is to be articulated on the said side plate spare.
8. paper-advance unit as claimed in claim 7 is characterized in that said framework has the side, and said side plate spare is articulated on the said side.
9. paper-advance unit as claimed in claim 8; It is characterized in that be formed with a projection on the said side, said side plate spare has first groove; Said projection is to be contained in said first groove, to limit said framework with respect to one of said side plate spare anglec of rotation.
10. paper-advance unit as claimed in claim 8 is characterized in that said side plate spare has second groove, and said paper blocking mechanism has cylinder, and said cylinder is to be contained in slidably in said second groove.
11. a scanner is characterized in that, comprises:
The image read module;
Sheet feeding;
Paper box; And
Like each described paper-advance unit among the claim 1-10; In order to the paper in the said paper box is grabbed in the said sheet feeding; Said sheet feeding is presented said paper through said image read module, and said image read module captures the image of said paper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100518560A CN101891072B (en) | 2009-05-22 | 2009-05-22 | Paper feed device with function of retaining paper and scanning device using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100518560A CN101891072B (en) | 2009-05-22 | 2009-05-22 | Paper feed device with function of retaining paper and scanning device using same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101891072A CN101891072A (en) | 2010-11-24 |
| CN101891072B true CN101891072B (en) | 2012-11-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100518560A Active CN101891072B (en) | 2009-05-22 | 2009-05-22 | Paper feed device with function of retaining paper and scanning device using same |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| TWI560128B (en) * | 2014-12-15 | 2016-12-01 | Avision Inc | Sheet-feeding device with multistage stop arms |
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| CN2505459Y (en) * | 2001-11-15 | 2002-08-14 | 力捷电脑股份有限公司 | Paper taking out mechanism |
| CN1531319A (en) * | 2003-03-17 | 2004-09-22 | 力捷电脑股份有限公司 | Automatic paper feeder |
| CN2887804Y (en) * | 2005-11-10 | 2007-04-11 | 崴强科技股份有限公司 | Paper pickup mechanism with paper stop function |
| CN200992441Y (en) * | 2006-12-26 | 2007-12-19 | 崴强科技股份有限公司 | Paper fetching mechanism with paper-buffling device |
| CN101372290A (en) * | 2007-08-24 | 2009-02-25 | 虹光精密工业（苏州）有限公司 | Mechanism for picking paper sheet and paper feed device using the same |
| CN201458397U (en) * | 2009-05-22 | 2010-05-12 | 虹光精密工业（苏州）有限公司 | Paper feeding device with function of stopping paper and scanning device using same |
-
2009
- 2009-05-22 CN CN2009100518560A patent/CN101891072B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2505459Y (en) * | 2001-11-15 | 2002-08-14 | 力捷电脑股份有限公司 | Paper taking out mechanism |
| CN1531319A (en) * | 2003-03-17 | 2004-09-22 | 力捷电脑股份有限公司 | Automatic paper feeder |
| CN2887804Y (en) * | 2005-11-10 | 2007-04-11 | 崴强科技股份有限公司 | Paper pickup mechanism with paper stop function |
| CN200992441Y (en) * | 2006-12-26 | 2007-12-19 | 崴强科技股份有限公司 | Paper fetching mechanism with paper-buffling device |
| CN101372290A (en) * | 2007-08-24 | 2009-02-25 | 虹光精密工业（苏州）有限公司 | Mechanism for picking paper sheet and paper feed device using the same |
| CN201458397U (en) * | 2009-05-22 | 2010-05-12 | 虹光精密工业（苏州）有限公司 | Paper feeding device with function of stopping paper and scanning device using same |
Non-Patent Citations (1)
| Title |
|---|
| JP特开2001-63855A 2001.03.13 |
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