CN104210864B - Automatic Document Feeder - Google Patents
Automatic Document Feeder Download PDFInfo
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- CN104210864B CN104210864B CN201310221214.7A CN201310221214A CN104210864B CN 104210864 B CN104210864 B CN 104210864B CN 201310221214 A CN201310221214 A CN 201310221214A CN 104210864 B CN104210864 B CN 104210864B
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Abstract
A kind of Automatic Document Feeder, is provided with feed throughs and drives motor, and comprising at least one paper-feeding roller, arranging along feed throughs；Paper extraction unit, is installed in feed throughs upstream and takes paper according to the driving moment direction received is on or off；Sheet delivery, is installed in feed throughs downstream and is sent by contribution or loopback according to the driving moment direction received；First drives gear, is installed between paper extraction unit and sheet delivery and by driving motor to drive；Drive swing arm, drives the coaxial pivot joint of gear the driving gear set swung in a free end pivot joint one of drive swing arm along with drive swing arm with first, and drive swing arm swings according to the first rotation direction driving gear；Ratchet group, is driven by driving motor and transmits the driving torque of equidirectional to paper-feeding roller；Actuator, is connected and controls the position of pressure wheel in sheet delivery with sheet delivery；And brake apparatus, it is arranged between drive swing arm and sheet delivery to control the swing of drive swing arm.
Description
Technical field
The present invention relates to a kind of Automatic Document Feeder, a kind of Automatic Document Feeder having double-sided scanning function.
Background technology
For the efficiency promoted when scanning in a large number and the function realizing automatic double-sided scanning, many scanning machines
Platform is all equiped with Automatic Document Feeder.
Refer to Fig. 1, be the generalized section of an existing Automatic Document Feeder shown in Fig. 1, automatic at this
Feeder has the passage of a conveying paper, is respectively equipped with feeding box by upstream to downstream along this passage
11 ', paper feed channel 12 ', scanning area 13 ', paper delivery passage 14 ' and paper output box 15 ', and at paper feed
Between passage 12 ' and paper delivery passage 14 ' and be connected with a turn-over passage 16 '.
And in order to carry file by each passage above-mentioned, it is respectively equipped with multiple difference along each passage
Transmission device.Such as it is arranged on the paper extraction unit 20 ' of paper feed channel 12 ' arrival end, is arranged on paper feed and leads to
Road 12 ' and paper delivery passage 14 ' are along online multiple paper-feeding roller 171 ', and are arranged on paper delivery passage 14 '
The sheet delivery 30 ' in exit.
When user is in scanning file, the paper extraction unit 20 ' in Automatic Document Feeder can be in feeding box 11 '
File is depressed, and starts in the paper feed channel 12 ' of file feed-in Automatic Document Feeder；But enter at file
Enter paper feed channel 12 ', and after arriving paper-feeding roller 171 ', this paper extraction unit 20 ' can rise again to avoid
Repeat paper feed.
After file enters paper feed channel 11 ', it is arranged on paper feed channel 11 ' along the line with paper delivery passage 14 '
Paper-feeding roller 171 ' then rotate towards same direction, file is transported to scanning area 13 ' by scanning
The scanning element of lower section, region 13 ' reads image, and the file completing scanning is delivered to paper output box 15 '.
And the sheet delivery 30 ' that position is in paper delivery passage 14 ' exit is provided with roller 31 ' and mobilizable pressure
Wheels 32 '；During general single-sweep, pressure wheel 32 ' can persistently be pushed down roller 31 ' and forward exert a force file,
If but when needing that file is carried out duplex scanning, then completing the first Surface scan at file and i.e. will leave
During paper delivery passage 14 ', sheet delivery 30 ' will reverse and reversely be sent back to by file in turn-over passage 16 ',
To return in paper feed channel 12 ' once again by the file of turn-over passage 16 ' and make file turn-over.And at file
After turn-over, for avoiding the both sides end to end of file to suffer pressure wheel 32 ' when the position of sheet delivery 30 ' interlocks
Clamping and paperboard, pressure wheel 32 ' will decline and separate with roller 31 '.
As shown in the above, paper extraction unit 20 ', no matter paper-feeding roller 171 ' and sheet delivery 30 ' exist
All there is sizable difference in the time point of start and the direction of rotation.Paper-feeding roller 171 ' is substantially held
Continuing and rotate towards same direction, paper extraction unit 20 ' and sheet delivery 30 ' then need the position along with file
Different and change rotation direction, and the roller 31 ' heel pressure of sheet delivery 30 ' wheel 32 ' is when suitable
Wait and be switched on again.In order to reach described effect, the transmission device in Automatic Document Feeder can be caused often to tie
Structure is complicated and is difficult to miniaturization, in order to solve disadvantages mentioned above, be necessary in fact existing Automatic Document Feeder and
Transmission device therein is improved.
Summary of the invention
A kind of simple in construction of offer is provided, and easily miniaturization automatically send original text
Device.
For reaching above-mentioned purpose, the Automatic Document Feeder of the present invention is provided with a feed throughs and and drives motor, feedback
Passage is sent sequentially to be provided with feeding box, paper feed channel, paper delivery passage and paper output box from upstream to downstream, including:
At least one paper-feeding roller, is arranged along feed throughs；One paper extraction unit, is installed in feed throughs
Carry out between feeding box and the paper feed channel of upstream end and according to receiving the driving moment direction driving motor
Take paper or stopping takes paper；One sheet delivery, is installed in paper delivery passage and the paper output box of feed throughs downstream part
Between and according to receive drive motor driving moment direction contribution is sent or loopback；One first drives
Gear, is installed between paper extraction unit and sheet delivery and by driving motor to be driven；One drive swing arm,
Drive the coaxial pivot joint of gear with first and be connected with a driving gear set moved along with drive swing arm,
This drive swing arm is rocked to driving gear set according to the first rotation direction difference driving gear and takes paper
The primary importance of device contact or the second place of driving gear set idle running, described driving gear set is at least
Comprise one first travelling gear and one first torque force limiting device, this first travelling gear and this first driving
Gear engagement and via this first torque force limiting device with this drive swing arm pivot joint；One ratchet group,
By driving motor to drive, and motor no matter is driven to rotate the transmission that all can transmit equidirectional towards any direction
Moment is to paper-feeding roller；One actuator, is connected with sheet delivery and controls pressure wheel in sheet delivery
Position；And a brake apparatus, it is arranged between drive swing arm and sheet delivery, and is driven by actuator
Move and control the swing position of drive swing arm and the opening and closing movement of sheet delivery simultaneously.
In a preferred embodiment, described actuator is set to a magnetic valve.
In a preferred embodiment, described sheet delivery comprises a roller, the pressure being oppositely arranged with roller
Wheel, is connected between pressure wheel with actuator and arranges a pressure wheel swing arm, make actuator through pressure wheel swing arm control
Roller processed and the folding of pressure wheel.
In a preferred embodiment, described brake apparatus comprises one group of first trip worked in coordination and
Two trips, wherein the first trip is arranged at the second trip in pressure wheel folding swing arm and is arranged at drive pendulum
On arm；The first trip and the engagement of the second trip when pressure wheel folding swing arm is risen, and make drive swing arm
Cannot swing.
In a preferred embodiment, described Automatic Document Feeder comprises a unidirectional paper-feeding roller and a list further
To gear train；This unidirectional paper-feeding roller is located in feed throughs, and ratchet group is by driving motor to drive
And be connected with unidirectional paper-feeding roller, and no matter drive motor all can transmit equidirectional towards the rotation of any direction
Driving torque to unidirectional paper-feeding roller.
In a preferred embodiment, described ratchet group comprises one second driving gear, drives with second
The ratchet swing arm of the coaxial pivot joint of gear, one engages, with paper-feeding roller, the output wheel being connected, with output wheel
The reverse gear that engagement connects, and second and third travelling gear being articulated in ratchet swing arm.
Wherein ratchet swing arm has two free ends, and second and third travelling gear all drives with second
Gear engages and is articulated in via second and third torque force limiting device respectively two freedom of ratchet swing arm
At end；Ratchet swing arm therein along with second drive the rotation direction of gear different and towards making the 3rd
The 3rd position that travelling gear engages with output wheel or make the second travelling gear engage with reverse gear the 4th
Position swings.So as to guaranteeing that the driving torque being transported to paper-feeding roller maintains equidirectional all the time.
In sum, the method have the characteristics that on sheet delivery, be provided with actuator, and by actuator
Synchronization Control sheet delivery and brake apparatus, brake apparatus is directly driven by sheet delivery and controls transmission
Wheel swing arm movement, and then reach driving force square can be transferred to paper extraction unit and control driving force
The effect of the output time of square, can effectively reduce volume and the production cost of Automatic Document Feeder.
Accompanying drawing explanation
Fig. 1 is the sectional view of existing Automatic Document Feeder.
Fig. 2 be the present invention Automatic Document Feeder in the stereogram of transmission device.
Fig. 3 be the present invention Automatic Document Feeder in first drive gear, actuator and the solid of brake apparatus
Figure.
Fig. 4 be the present invention Automatic Document Feeder in first drive gear, actuator and the side-looking of brake apparatus
Figure.
Fig. 5 is the stereogram of ratchet group.
Fig. 6 A is the side view that ratchet group is positioned at the 3rd position.
Fig. 6 B is the side view that ratchet group is positioned at the 4th position.
Fig. 7 is the constitutional diagram of driving gear set.
Fig. 8 A to 12B is the action schematic diagram that the present invention carries out sending original text.
Wherein, description of reference numerals is as follows:
11 feeding box 12 paper feed channel
13 scanning area 14 paper delivery passages
15 paper output box 16 turn-over passages
17 paper-feeding roller 171 paper-feeding roller
172 unidirectional paper-feeding roller 20 paper extraction units
30 sheet delivery 31 rollers
32 pressure wheel 33 pressure wheel swing arms
34 rotary shaft 35 first press blocks
36 second press blocks 40 first drive gear
41 drive motor 50 drive swing arm
51 driving gear set 52 first travelling gears
53 first torque force limiting device 60 ratchet groups
61 ratchet swing arms 62 second drive gear
63 output wheel 64 reverse gears
70 actuator 80 brake apparatus
81 first trip 82 second trip screws
Detailed description of the invention
By describing the technology contents of the present invention, structural feature in detail, being reached purpose and effect, the most hereby
Illustrate and coordinate accompanying drawing to be explained in detail.
Referring now to Fig. 2 to Fig. 4 and Fig. 8 A, the Automatic Document Feeder in the present invention comprises a feed throughs,
From upstream to downstream sequentially by being provided with feeding box 11, paper feed channel 12, scanning area 13, paper delivery passage
14 and paper output box 15 form, and between paper feed channel 12 and paper delivery passage 14, be connected with a turn-over
Passage 16.
One unidirectional paper-feeding roller 172, if as the confluce of turn-over passage 16 with paper delivery passage 14；One
Paper-feeding roller 171, is arranged along feed throughs 10.One paper extraction unit 20, be installed in feeding box 11 with
Carry out taking paper or stopping takes paper between paper feed channel 12 and according to receiving driving moment direction.One paper delivery dress
Put 30, be installed between paper delivery passage 14 and paper output box 15 and according to receiving driving moment direction by original text
Part is sent or loopback.
One first drives gear 40, is installed between paper extraction unit 20 and sheet delivery 30 and by driving horse
Reach 41 to be driven.One drive swing arm 50, drives the coaxial pivot joint of gear 40 with first and puts at drive
The driving gear set 51 that one free end pivot joint one of arm is moved along with drive swing arm 50, this drive is put
Arm 50 drives the rotation direction of gear 40 different according to first and is rocked to driving gear set 51 and the dress that takes paper
Put primary importance (as shown in Figure 8 A) or the second place of driving gear set 51 idle running of 20 contacts
(as shown in Figure 8 B).
One ratchet group 60, is connected drive via paper-feeding roller 171 with driving motor 41, and with
Unidirectional paper-feeding roller 172 connects, and no matter driving motor 41 to rotate towards any direction all can be by ratchet
The driving torque of group 60 transmission equidirectional is to unidirectional paper-feeding roller 172.One actuator 70, fills with paper delivery
Put 30 connections and control the position of pressure wheel 32 in sheet delivery 30.One brake apparatus 80, with paper delivery
Device 30 connects, and is driven by sheet delivery 30 and control the swing state of drive swing arm 50.
Referring to Fig. 2 again, described sheet delivery 30 comprises one group of roller 31 and relative with roller 31 sets
The pressure wheel 32 put, is provided with a pressure wheel swing arm 33 between pressure wheel 32 and actuator 70, pressure wheel is put
Arm 33 is provided with a rotary shaft 34, and be separately positioned on rotary shaft 34 two ends the first press block 35 and
Second press block 36, wherein the first press block 35 is connected with actuator 70 and the second press block 36 and pressure
Wheels 32 connects, and makes the folding of actuator 70 start time control pressing pressure wheel 32 and roller 31.And activate
Device 70 is then set to a magnetic valve, contacts with pressure wheel swing arm 33 via a control lever, works as magnetic valve
When being raised above, the end driving control lever is pressed downwards, and then by 32 times pressures of pressure wheel and contribution
Separate；Contrary, when magnetic valve end upwards lifting by drive control lever in time declining, now press
Wheels swing arm 33 is by elastic parts lifting and makes pressure wheel 32 contact with contribution.
Referring to Fig. 4, described driving gear set 51 comprises one first travelling gear 52 and one first and turns round
Force-limiting device (not shown), the first travelling gear 52 and first drives gear 40 to intermesh and by the
One torque force limiting device and be articulated in drive swing arm 50.And torque force limiting device has an acrotorque and allows
Value, if the moment acted between the first travelling gear 52 and drive swing arm 50 is turned round not less than maximum
During power feasible value, the first travelling gear 52 will not produce relative rotation with drive swing arm 50.
Therefore when first drives gear 40 to rotate, it will drive drive swing arm 50 to swing in first
Position or the second place.When drive swing arm 50 is positioned at primary importance, the first travelling gear 52 with take
Paper device 20 connects driving moment transmission is put paper extraction unit 20；And when drive swing arm 50 is positioned at the
During two positions, the first travelling gear 52 separates with paper extraction unit 20 and makes the first travelling gear 52 dally.
Brake apparatus 80 is then set to one group of first trip 81 and second trip 82 worked in coordination, its
In the first trip 81 be arranged in pressure wheel swing arm 33, the second trip 82 is then arranged on drive swing arm
On 50；The first trip 81 will be made when pressure wheel swing arm 33 is risen to engage with the second trip 82, go forward side by side
And stop drive swing arm 50 to freely swing.In the embodiment shown in this figure, the first trip 81 is set to
By the first press block 35 upwardly extending projection of end, and the second trip 82 is set to by drive swing arm 50
The projection downwardly extended, therefore will make the first trip 81 and when pressure wheel swing arm 33 upwards lifting
Two trips 82 engage and make drive swing arm 50 to swing, but the first trip 81 described herein
And second trip 82 moulding only for convenience of purposes of discussion, do not limit the first trip 81 and the second card with this
The moulding of tenon 82.
Refer to Fig. 2, Fig. 5 and Fig. 6 again, the ratchet group 60 in the present invention and unidirectional paper-feeding roller
172 connect and by driving motor 41 to connect driving, wherein comprise one second driving gear 62, one and the second
Driving the ratchet swing arm 61 of the coaxial pivot joint of gear 62, one is articulated in unidirectional paper-feeding roller 172
Output wheel 63, one engages the reverse gear 64 being connected with output wheel 63, and is articulated in ratchet pendulum
Second and third travelling gear 65,66 on arm 61.
Wherein ratchet swing arm 61 has two free ends, and second and third travelling gear 65,66 is equal
Gear 62 is driven to engage and the pivot joint via second and third torque force limiting device (not shown) respectively with second
In two free ends of ratchet swing arm 61, ratchet swing arm 61 drives gear 62 along with second
Rotation direction different and be rocked to the 3rd position that the 3rd travelling gear 66 engages with output wheel 63 (as schemed
Shown in 6A) or the 4th position (as shown in Figure 6B) engaged with reverse gear 64 of the second travelling gear 65.
So as to guaranteeing that the driving torque being transported to unidirectional paper-feeding roller 172 maintains equidirectional all the time.
Referring to Fig. 7 again, above-mentioned torque force limiting device is a compression spring, and this compression spring is locked at pendulum
Arm 50, on 61 and make its two ends bear against at swing arm 50,61 and travelling gear 52,65,66
On to increase swing arm 50,61 and travelling gear 52, the positive force between 65,66 and frictional force.With
As a example by the first torque force limiting device between drive swing arm 50 and the first travelling gear 52, the first driving cog
Wheel 52 and compression spring are coaxially articulated in the free end of drive swing arm 50, and compression spring is consolidated
It is scheduled between the first travelling gear 52 and drive swing arm 50 first travelling gear 52 is applied forward
Power.Therefore when the driving torque being applied between drive swing arm 50 and the first travelling gear 52 is less than rubbing
When wiping mechanical impedance, drive swing arm 50 will not produce relative rotation with the first travelling gear 52, until passing
When kinetic moment exceedes maximum static friction force between the two, drive swing arm 50 and the first travelling gear 52
Between just produce relative rotation.
Automatic Document Feeder when automatically sending original text and scanning can according to required feeding contribution different and with
Different steps carries out sending original text, wherein carries out the step of single-sweep with the present invention as follows:
Referring to Fig. 8 A, when automatic sheet feeder starts action, contribution position is in feeding box 11, now
Brake apparatus 80 is positioned at primary importance for locking condition and drive swing arm 50.When driving motor 41 with suitable
When clockwise rotates, first drives gear 40 driving torque of forward will to be transferred to paper extraction unit 20,
Paper extraction unit 20 just takes paper towards 11 times pressures of feeding box and starts to take paper continuously.Owing to driving motor 41
Continue to rotate clockwise, therefore paper extraction unit 20, paper-feeding roller 171, unidirectional paper-feeding roller 172
And sheet delivery 30 the most all rotates towards equidirectional, the contribution being taken in paper feed passage is made sequentially to lead to
Cross paper feed channel 12, scanning area 13 and paper delivery passage 14, and finally enter paper output box 15.
And motion flow that contribution carries out duplex scanning is as follows:
Referring now to Fig. 8 A, when automatic sheet feeder starts action, contribution position in feeding box 11, this
Time brake apparatus 80 be positioned at primary importance for locking condition and drive swing arm 50.Drive motor 41 same
To rotate clockwise and the driving torque of forward be transferred to paper extraction unit 20.Now paper extraction unit 20
To press for 11 times towards feeding box, and contribution be sent in paper feed channel 12.
Refer to Fig. 8 B again, when contribution is admitted to contact it among paper feed passage and with paper-feeding roller 171
After, actuator 70 just starts action and allows brake apparatus 80 enter release conditions.Drive pendulum now
Arm 50 can freely swing, and therefore drives first and can swing under gear 40 rotation clockwise
The second place and separate with paper extraction unit 20, and paper extraction unit 20 stop take off a contribution.And contribution
May proceed to move toward paper delivery passage 14 under the drive of paper-feeding roller 171.
Referring to Fig. 9 A again, after drive swing arm 50 enters the second place, actuator 70 just stops
Stop is made and is allowed brake apparatus 80 return to locking condition once again, makes drive swing arm 50 be fixed on second
Position.
Refer to Fig. 9 B, complete the scanning of first and the tail end of contribution leaves scanning area really at contribution
After territory 13 and paper delivery passage 14, drive motor 41 just to start inverse clock and rotate.Now due to drive
Swing arm 50 is in the second place making the first travelling gear 52 idle running, and therefore paper extraction unit 20 will keep
Transfixion, and sheet delivery 30 can by contribution back under the drive driving motor 41 inverse clock to rotate
Feeding, and enter among turn-over passage 16.
Referring to Figure 10 A, after contribution entrance turn-over passage 16 carries out turn-over, actuator 70 can again
Degree action makes pressure wheel swing arm 33 swung downward and allows pressure wheel 32 separate with contribution and (related make braking fill
Put 80 entrance release conditions), simultaneously drive motor 41 and change to rotate clockwise.Then contribution is being walked
Scanning area 13 will be passed through for the second time and enter paper delivery passage 14 under the drive of paper roller 171.Now
Although brake apparatus 80 be position in release conditions, but drive motor 41 be to rotate clockwise,
Therefore drive swing arm 50 is always held at the second place.
Refer to Figure 10 B, when contribution two sides has all scanned and made the tail end of contribution really to leave scanning area
After territory 13 and paper delivery passage 14, it will carry out a turn-over again so that contribution is turned back front.Now cause
Stopping action being made pressure wheel swing arm 33 be swung up and allows pressure wheel 32 contact with contribution (even by dynamic device 70
Band makes brake apparatus 80 return to locking condition), make driving motor 41 into counterclockwise simultaneously and turn
Dynamic.Now contribution can back be fed under the drive driving motor 41 inverse clock to rotate by sheet delivery 30,
And enter among turn-over passage 16.
Referring to Figure 11 A, after contribution entrance turn-over passage 16 carries out turn-over, actuator 70 can again
Degree action makes pressure wheel swing arm 33 swung downward and allows pressure wheel 32 separate with contribution and (related make braking fill
Put 80 entrance release conditions), simultaneously drive motor 41 and change to rotate clockwise.Then contribution is being walked
Scanning area 13 will be passed through for the second time and enter paper delivery passage 14 under the drive of paper roller 171.Now
Although brake apparatus 80 be position in release conditions, but drive motor 41 be to rotate clockwise,
Therefore drive swing arm 50 is always held at the second place.
After contribution turns back front once again, contribution scanning completed exits Automatic Document Feeder and again takes paper
Step as follows.
Referring to Figure 11 B, after being connected at Figure 11 A, when contribution completes scanning, actuator 70 is
Start, therefore pressure wheel 32 and contribution are (and brake apparatus 80 are release conditions) separated from one another.
Now driving motor 41 to make counterclockwise rotation into makes drive swing arm 50 deflect into primary importance with even
Connect the first travelling gear 52 and paper extraction unit 20.And owing to unidirectional paper-feeding roller 172 is via unidirectional tooth
The driving of wheels 60, therefore may proceed to carry contribution toward paper delivery passage 14.
Refer to Figure 12 A again, when contribution enters after paper delivery passage 14, actuator 70 just stop start and
Make pressure wheel 32 contact (related locking drive swing arm 50) with contribution, then refer to Figure 12 B,
The contribution driving motor 41 to recover to rotate clockwise and to make scanning complete passes through paper delivery passage 14, and
Simultaneously because drive swing arm 50 is positioned at make the first travelling gear 52 engage first with paper extraction unit 20
Putting, therefore paper extraction unit 20 takes starting under the drive that the first driving gear 52 rotates clockwise
Paper.
In sum, the method have the characteristics that on sheet delivery, be provided with brake apparatus, brake apparatus
Directly driven and control the movement of drive swing arm by sheet delivery, so reach driving force square can
It is transferred to the effect of the output time of paper extraction unit and control driving torque, can effectively reduce and automatically send
The volume of original text device and production cost.
Claims (6)
1. an Automatic Document Feeder, it is characterised in that: include that a feed throughs and drives motor, feeding
Passage is sequentially provided with feeding box, paper feed channel, paper delivery passage and paper output box from upstream to downstream, and comprises:
At least one paper-feeding roller, is arranged along described feed throughs；
One paper extraction unit, is installed between feeding box and the paper feed channel of described feed throughs upstream end and depends on
Carry out taking paper according to the driving moment direction receiving described driving motor or stopping takes paper；
One sheet delivery, is installed between paper delivery passage and the paper output box of described feed throughs downstream part and depends on
According to the driving moment direction receiving described driving motor, contribution is sent or loopback；
One first drives gear, is installed between described paper extraction unit and described sheet delivery and is driven by described
Dynamic motor is driven；
One drive swing arm, drives the coaxial pivot joint of gear the freedom in drive swing arm with described first
The end driving gear set that moves along with described drive swing arm of pivot joint one, this drive swing arm is according to described the
The rotation direction of one driving gear is different and is rocked to what described driving gear set contacted with described paper extraction unit
Primary importance or the second place of described driving gear set idle running, described driving gear set includes at least one
First travelling gear and one first torque force limiting device, this first travelling gear is nibbled with this first driving gear
Merge via this first torque force limiting device with this drive swing arm pivot joint；
One actuator, is connected with described sheet delivery and controls the position of a pressure wheel in described sheet delivery；
And
One brake apparatus, is arranged between described drive swing arm and described sheet delivery, and by described cause
The folding of swing position and described sheet delivery that dynamic device drives and controls described drive swing arm simultaneously is moved
Make.
2. Automatic Document Feeder as claimed in claim 1, it is characterised in that: described actuator is set to an electricity
Magnet valve.
3. Automatic Document Feeder as claimed in claim 1, it is characterised in that: described sheet delivery comprises one
Roller and the pressure wheel being oppositely arranged with described roller, described pressure wheel and described actuator are via one
Pressure wheel swing arm connects, and makes described actuator control described roller and described pressure through described pressure wheel swing arm
The folding of wheel.
4. Automatic Document Feeder as claimed in claim 3, it is characterised in that: described brake apparatus comprises one
The first trip that group is worked in coordination and the second trip, wherein said first trip is located in pressure wheel swing arm,
And described second trip is located in drive swing arm；First trip described in when described pressure wheel swing arm is risen
Engage with described second trip, and make described drive swing arm to swing.
5. Automatic Document Feeder as claimed in claim 1, it is characterised in that: the most also comprise one unidirectional walk
Paper roller and a ratchet group；This unidirectional paper-feeding roller is located in described feed throughs, and described unidirectional
Gear train is driven by described driving motor and is connected with described unidirectional paper-feeding roller, and the most described driving horse
Reach to rotate towards any direction and all can transmit the driving torque of equidirectional to described unidirectional paper-feeding roller.
6. Automatic Document Feeder as claimed in claim 5, it is characterised in that: described ratchet group comprises
One second drive gear, one with the described second driving ratchet swing arm of the coaxial pivot joint of gear, one and institute
State output wheel, the reverse gear being connected with the engagement of described output wheel and a pivot that paper-feeding roller engagement connects
It is connected to the second travelling gear in described ratchet swing arm and the 3rd travelling gear；Wherein said unidirectional tooth
Wheel swing arm has two free ends, and described second travelling gear and described 3rd travelling gear are all with described the
Two drive gear engagement and are articulated in via the second torque force limiting device and the 3rd torque force limiting device described respectively
Two free ends of ratchet swing arm；Wherein said ratchet swing arm drives gear along with described second
Rotation direction difference be rocked to one the 3rd position that described 3rd travelling gear engages with described output wheel or
Make one the 4th position that described second travelling gear engages with described reverse gear, described to guarantee to be transported to
The driving torque of paper-feeding roller maintains equidirectional all the time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310221214.7A CN104210864B (en) | 2013-06-05 | 2013-06-05 | Automatic Document Feeder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310221214.7A CN104210864B (en) | 2013-06-05 | 2013-06-05 | Automatic Document Feeder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104210864A CN104210864A (en) | 2014-12-17 |
| CN104210864B true CN104210864B (en) | 2016-08-24 |
Family
ID=52092856
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310221214.7A Expired - Fee Related CN104210864B (en) | 2013-06-05 | 2013-06-05 | Automatic Document Feeder |
Country Status (1)
| Country | Link |
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| CN (1) | CN104210864B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104609236B (en) * | 2014-12-24 | 2016-09-07 | 深圳怡化电脑股份有限公司 | Single motor gear driving medium automatic dispensing apparatus |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003104631A (en) * | 2001-10-02 | 2003-04-09 | Sharp Corp | Document carrying device |
| CN1428286A (en) * | 2001-12-28 | 2003-07-09 | 尼司卡股份有限公司 | Automatic document supply device |
| CN101110885A (en) * | 2006-07-19 | 2008-01-23 | 三星电子株式会社 | Auto document feeder and image forming apparatus including the same |
| US7717423B2 (en) * | 2007-09-27 | 2010-05-18 | Lexmark International, Inc. | Duplex ADF mechanism |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7946578B2 (en) * | 2008-04-30 | 2011-05-24 | Ricoh Company Ltd. | Automatic original conveying device and image forming apparatus |
| JP2011105468A (en) * | 2009-11-18 | 2011-06-02 | Seiko Epson Corp | Conveyed material carrying device and image processing device |
-
2013
- 2013-06-05 CN CN201310221214.7A patent/CN104210864B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003104631A (en) * | 2001-10-02 | 2003-04-09 | Sharp Corp | Document carrying device |
| CN1428286A (en) * | 2001-12-28 | 2003-07-09 | 尼司卡股份有限公司 | Automatic document supply device |
| CN101110885A (en) * | 2006-07-19 | 2008-01-23 | 三星电子株式会社 | Auto document feeder and image forming apparatus including the same |
| US7717423B2 (en) * | 2007-09-27 | 2010-05-18 | Lexmark International, Inc. | Duplex ADF mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104210864A (en) | 2014-12-17 |
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