CN101844688A - Automatic paper feeding device with clutch - Google Patents
Automatic paper feeding device with clutch Download PDFInfo
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- CN101844688A CN101844688A CN200910048446A CN200910048446A CN101844688A CN 101844688 A CN101844688 A CN 101844688A CN 200910048446 A CN200910048446 A CN 200910048446A CN 200910048446 A CN200910048446 A CN 200910048446A CN 101844688 A CN101844688 A CN 101844688A
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- transmission gear
- paper
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- feeding device
- paper feeding
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Abstract
The invention relates to an automatic paper feeding device which comprises a paper fetching mechanism, a paper sheet transmission mechanism, a power source and a clutch. The power transmission mechanism is used for transmitting paper sheets grabbed in the paper fetching mechanism in a channel. The power source used for driving the paper fetching mechanism comprises a power output shaft and a first transmission gear, thereby respectively outputting and transferring power. The clutch comprises a second transmission gear and a power connection component. The second transmission gear and the first transmission gear are coaxially arranged. The power connection component is coaxially arranged between the first transmission gear and the second transmission gear and further connected with the first transmission gear. The power connection component carries out reciprocating movement along the axial direction, thereby selectively connecting and driving the second transmission gear. The second transmission gear is connected with the paper fetching mechanism, and the power source selectively drives the paper fetching mechanism through the clutch.
Description
Technical field
The present invention relates to a kind of automatic paper feeding device, especially a kind of have an automatic paper feeding device that power-transfer clutch is controlled the paper feeding program.
Background technology
The employed master mode automatic paper feeding device of getting of traditional scanner comprises a pickup roller, a comber and several paper delivery rollers usually.Pickup roller must be driven and move up and down, and presents for comber to grasp paper.Because the combination of pickup roller and comber need intermittently be rotated, and the combination of paper delivery roller must be rotated constantly, so the combination of pickup roller and comber must separate driving with the combination of paper delivery roller.For reaching this requirement, can use two motors to drive the combination of pickup roller and comber and the combination of paper delivery roller respectively, but can significantly improve the cost of product.Therefore, traditional practice is normally reached the effect that separately drives with the gears to engage and disengage device.
With the interlock of controlling two transmission gears whether traditional gears to engage and disengage device is to utilize centre distance that electromagnetic valve controls two transmission gears, and therefore, two transmission gears are met just before the problem of collision loss, thereby influence its precision.
In a kind of swing gears to engage and disengage device, one driving gear and several intermediate gears are installed on the V-arrangement rocking arm, utilize the inertia of driving gear rotation to drive rocker arms roll to making one of them intermediate gear and an output gear ingear primary importance and making wherein another intermediate gear and the output gear ingear second place, so as to reaching the effect of two kinds of outputs.In the time will cutting off the power transmission of driving gear and output gear, can utilize electromagnetic valve to promote rocking arm, allow intermediate gear and output gear break away from.
In above-mentioned gears to engage and disengage device, the axis of all gears all is to be parallel to horizontal surface.Therefore, when designing this type of gears to engage and disengage device, must consider the weight of part itself and the characteristic of spring, in order to avoid cause misoperation.
Therefore, provide a kind of automatic paper feeding device that can address the above problem, the real solution that will realize for the present invention.
Summary of the invention
An object of the present invention is to provide a kind of automatic paper feeding device with power-transfer clutch, described power-transfer clutch can effectively solve the problem of gear clash, and can allow the designer need not consider the characteristic of pts wt and spring, makes design process more simplify.
For reaching above-mentioned purpose, the invention provides a kind of automatic paper feeding device with power-transfer clutch, described equipment comprises paper-fetching mechanism, paper delivery mechanism, propulsion source and power-transfer clutch.Paper-fetching mechanism is positioned at paper within the paper box in order to extracting, and paper is fed in the passage.Paper delivery mechanism is in order to transmit the paper that paper-fetching mechanism grasped in passage.Propulsion source is in order to drive paper-fetching mechanism.Propulsion source comprises the power take-off shaft and first transmission gear.Power take-off shaft is in order to outputting power.The first transmission gear transferring power.Power-transfer clutch comprises second transmission gear and power connection assembly.Second transmission gear and the coaxial setting of first transmission gear.The power connection assembly is coaxial to be arranged between first transmission gear and second transmission gear, and is connected with first transmission gear.The power connection assembly axially moves back and forth along one, optionally to connect and to drive second transmission gear.Second transmission gear is connected with paper-fetching mechanism, and propulsion source optionally drives paper-fetching mechanism by power-transfer clutch.
For foregoing of the present invention can be become apparent, a preferred embodiment cited below particularly, and cooperate appended accompanying drawing, be described in detail below.
Description of drawings
Fig. 1 shows the scheme drawing according to the automatic paper feeding device of preferred embodiment of the present invention.
Fig. 2 shows the sectional perspective scheme drawing according to the automatic paper feeding device of preferred embodiment of the present invention.
Fig. 3 and 4 partial schematic diagrams that show according to the power-transfer clutch of preferred embodiment of the present invention.
Fig. 5 shows the sectional perspective scheme drawing according to the automatic paper feeding device of preferred embodiment of the present invention.
The specific embodiment
Fig. 1 shows the scheme drawing according to the automatic paper feeding device of preferred embodiment of the present invention.Fig. 2 and the 5 sectional perspective scheme drawings that show according to the automatic paper feeding device of preferred embodiment of the present invention.Shown in Fig. 1,2 and 5, the automatic paper feeding device 1 of present embodiment comprises a paper-fetching mechanism 10, a paper delivery mechanism 20, a propulsion source 30 and a power-transfer clutch 40.Certainly, the automatic paper feeding device 1 one scan module 80 that can also comprise a housing 90 and can in housing 90, move around.
Paper-fetching mechanism 10 can be swung, and is positioned at a paper S of a paper box 2 in order to extracting, and paper S is fed in the passage 3.In the present embodiment, paper-fetching mechanism 10 comprises a power input shaft 14 and an input gear 15.Input gear 15 is set on the power input shaft 14, and input gear 15 is driven and rotational power input shaft 14.Paper-fetching mechanism 10 also comprises a comber 13 and a pickup roller 12, and both all are rotatably installed on the framework 11.
Comber 13 is sheathed on the power input shaft 14, and driven by power input shaft 14 and rotate.Pickup roller 12 is driven by power input shaft 14 and rotates and move up and down.
Please cooperate referring to Fig. 3 and 4, power-transfer clutch 40 comprises one second transmission gear 41 and a power connection assembly 43.Second transmission gear 41 and the 32 coaxial settings of first transmission gear.So-called coaxial setting is including but not limited to being arranged in the same rotating shaft or being arranged at same hypothetical axis but in the different rotating shaft.Second transmission gear 41 be the engagement input gear 15, with transferring power to input gear 15.Power connection assembly 43 coaxial being arranged between first transmission gear 32 and second transmission gear 41, and be connected with first transmission gear 32.Power connection assembly 43 moves back and forth along an axial D2, optionally to connect and to drive second transmission gear 41.
Power-transfer clutch 40 can also comprise a clutch control mechanism 50, in order to move back and forth power connection assembly 43 along axial D2, so that power connection assembly 43 connects and break away from second transmission gear 41.
See also Fig. 3 and 4, the first transmission gears 32 and comprise one first 32A of internal gearing portion, power connection assembly 43 combines with first 32A of internal gearing portion, to connect first transmission gear 32.Second transmission gear 41 comprises one second 41A of internal gearing portion, and power connection assembly 43 is by moving back and forth along axial D2 optionally to combine with second 41A of internal gearing portion, optionally to connect second transmission gear 41.
Therefore, from the power of power take-off shaft 31, can be passed on comber 13 and the pickup roller 12 by output gear 33, first transmission gear 32, power connection assembly 43, second transmission gear 41, input gear 15 and power input shaft 14.From the power of power take-off shaft 31, also can driving rolls 21 to 24.When pickup roller 12 once grasped plurality of sheets of paper and opens, comber 13 and a friction component 16 combineds action guaranteed that to carry out the separation action single paper is fed in the access passage 3.Then, utilize power connection assembly 43 to cut off the power transmission of first transmission gear 32 and second transmission gear 41, make paper-fetching mechanism 10 decommission, but paper delivery mechanism 20 still continues running.Therefore, the paper S of access passage 3 can be presented by 80 zones that can scan of scan module by roller 21 and 22, and scan module 80 can capture the image of paper S.Then, roller 23 and 24 is presented out paper S, to finish the action of scanning.
In sum, the present invention is provided with a power-transfer clutch between first transmission gear of coaxial setting and second transmission gear.First ratchet portion of power-transfer clutch and the permanent interlock of first transmission gear, the second transmission gear interlock is then optionally followed by the second ratchet portion of power-transfer clutch according to the control of clutch control mechanism.The clutch action that utilizes these ratchet portions to be reached can not influence the precision of the external tooth form of transmission gear naturally, and the intensity of these ratchet portions can be made higher and not have impaired doubt.In addition, clutch action system carries out along horizontal direction, so can not be subjected to the influence of gravity.
The specific embodiment that is proposed in the detailed description of preferred embodiment is only in order to convenient explanation technology contents of the present invention; but not with narrow sense of the present invention be limited to the foregoing description; under the situation that does not exceed spirit of the present invention and following claim scope; the many variations of being done is implemented, and all belongs to protection scope of the present invention.
Claims (12)
1. the automatic paper feeding device with power-transfer clutch is characterized in that, comprises:
Paper-fetching mechanism is positioned at the paper of paper box in order to extracting, and described paper is fed in the passage;
Paper delivery mechanism is in order to transmit the described paper that described paper-fetching mechanism grasped in described passage;
Propulsion source, in order to drive described paper-fetching mechanism, described propulsion source comprises:
Power take-off shaft is in order to outputting power; And
First transmission gear is in order to transmit described power; And
Power-transfer clutch, described power-transfer clutch comprises:
Second transmission gear is with the coaxial setting of described first transmission gear; And
The power connection assembly, coaxial being arranged between described first transmission gear and described second transmission gear, and being connected with described first transmission gear, described power connection assembly moves back and forth vertically, optionally to connect and to drive described second transmission gear;
Wherein, described second transmission gear is connected with described paper-fetching mechanism, and described propulsion source optionally drives described paper-fetching mechanism by described power-transfer clutch.
2. automatic paper feeding device as claimed in claim 1 is characterized in that, described paper-fetching mechanism comprises:
Power input shaft; And
Input gear is set on the described power input shaft, and described input gear is driven and rotates described power input shaft.
3. automatic paper feeding device as claimed in claim 2 is characterized in that, described second transmission gear meshes described input gear, to transmit described power to described input gear.
4. automatic paper feeding device according to claim 1 is characterized in that described paper-fetching mechanism comprises:
Comber is set on the described power input shaft, driven by described power input shaft and rotates; And
Pickup roller is driven by described power input shaft and rotates and move up and down.
5. automatic paper feeding device as claimed in claim 1 is characterized in that described propulsion source also comprises output gear, is installed on the described power take-off shaft, and connects described first transmission gear, in order to transmit described power to described first transmission gear.
6. automatic paper feeding device as claimed in claim 5, it is characterized in that, described propulsion source is also in order to drive described paper delivery mechanism, several rollers that described paper delivery mechanism comprises the 3rd transmission gear and driven by described the 3rd transmission gear, in order to present described paper, described the 3rd transmission gear is connected with described output gear.
7. automatic paper feeding device as claimed in claim 1, it is characterized in that, described power-transfer clutch also comprises a clutch control mechanism, in order to axially to move back and forth described power connection assembly along described, so that described power connection assembly connects and break away from described second transmission gear.
8. automatic paper feeding device as claimed in claim 7 is characterized in that, described clutch control mechanism comprises:
Electromagnetic valve;
Rod member is subjected to described solenoid-driven, is connected to described power connection assembly, to move described power connection assembly.
9. automatic paper feeding device as claimed in claim 8 is characterized in that, the plunger alive of described electromagnetic valve drives described rod member along a direction parallel with the moving direction of described power connection assembly.
10. automatic paper feeding device as claimed in claim 9 is characterized in that, described clutch control mechanism also comprises:
Elastic parts is set on the described plunger alive, in order to provide restoring force to described plunger alive.
11. automatic paper feeding device as claimed in claim 1 is characterized in that:
Described first transmission gear comprises the first internal gearing portion, and described power connection assembly combines with the described first internal gearing portion, to connect described first transmission gear; And
Described second transmission gear comprises the second internal gearing portion, and described power connection assembly is by axially moving back and forth optionally to combine with the described second internal gearing portion, optionally to connect described second transmission gear along described.
12., it is characterized in that described power connection assembly comprises as claim 11 a described automatic paper feeding device:
The first ratchet portion embeds the described first internal gearing portion, to combine with the described first internal gearing portion; And
The second ratchet portion embeds the described second internal gearing portion, to combine with the described second internal gearing portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910048446 CN101844688B (en) | 2009-03-27 | 2009-03-27 | Automatic paper feeding device with clutch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910048446 CN101844688B (en) | 2009-03-27 | 2009-03-27 | Automatic paper feeding device with clutch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101844688A true CN101844688A (en) | 2010-09-29 |
| CN101844688B CN101844688B (en) | 2012-12-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200910048446 Active CN101844688B (en) | 2009-03-27 | 2009-03-27 | Automatic paper feeding device with clutch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101844688B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102689804A (en) * | 2011-03-25 | 2012-09-26 | 富士施乐株式会社 | Recording medium feeding device and image forming apparatus |
| CN103716498A (en) * | 2012-09-28 | 2014-04-09 | 致伸科技股份有限公司 | Paper feeding type scanning device |
| CN103716497A (en) * | 2012-09-28 | 2014-04-09 | 致伸科技股份有限公司 | Paper feed-type scanning device |
| CN104276417A (en) * | 2013-07-08 | 2015-01-14 | 京瓷办公信息***株式会社 | Sheet feeding device, and image reading device and image forming apparatus including this |
| CN107128712A (en) * | 2017-06-14 | 2017-09-05 | 深圳市巨鼎医疗设备有限公司 | A kind of conveyer of print media |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5203553A (en) * | 1992-03-19 | 1993-04-20 | Industrial Technology Research Institute | Automatic document feeder |
| CN1184121C (en) * | 2001-11-26 | 2005-01-12 | 光宝科技股份有限公司 | Paper feeder |
| CN100417839C (en) * | 2004-07-23 | 2008-09-10 | 虹光精密工业（苏州）有限公司 | Driving device capable of switching speed reduction ratio |
| CN101372290B (en) * | 2007-08-24 | 2010-04-21 | 虹光精密工业（苏州）有限公司 | Mechanism for picking paper sheet and paper feed device using the same |
| CN201411257Y (en) * | 2009-03-27 | 2010-02-24 | 虹光精密工业（苏州）有限公司 | Automatic paper feeding equipment with clutch |
-
2009
- 2009-03-27 CN CN 200910048446 patent/CN101844688B/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102689804A (en) * | 2011-03-25 | 2012-09-26 | 富士施乐株式会社 | Recording medium feeding device and image forming apparatus |
| CN102689804B (en) * | 2011-03-25 | 2016-04-13 | 富士施乐株式会社 | Recording medium supply apparatus and image processing system |
| CN103716498A (en) * | 2012-09-28 | 2014-04-09 | 致伸科技股份有限公司 | Paper feeding type scanning device |
| CN103716497A (en) * | 2012-09-28 | 2014-04-09 | 致伸科技股份有限公司 | Paper feed-type scanning device |
| CN104276417A (en) * | 2013-07-08 | 2015-01-14 | 京瓷办公信息***株式会社 | Sheet feeding device, and image reading device and image forming apparatus including this |
| CN107128712A (en) * | 2017-06-14 | 2017-09-05 | 深圳市巨鼎医疗设备有限公司 | A kind of conveyer of print media |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101844688B (en) | 2012-12-12 |
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