CN208369683U - A kind of paper dividing structure of scanner - Google Patents
A kind of paper dividing structure of scanner Download PDFInfo
- Publication number
- CN208369683U CN208369683U CN201821102535.XU CN201821102535U CN208369683U CN 208369683 U CN208369683 U CN 208369683U CN 201821102535 U CN201821102535 U CN 201821102535U CN 208369683 U CN208369683 U CN 208369683U
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- China
- Prior art keywords
- paper
- wheel
- paper feeding
- feeding roller
- scanner
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Abstract
The utility model discloses a kind of paper dividing structures of scanner, including scanner bracket, forms stand is fixedly installed on scanner support, installation is equipped with chart drive motor and the first paper feeding roller on forms stand, first paper feeding roller one end is connect with chart drive motor, and the first paper feeding roller other end is engaged with train of reduction gears, and train of reduction gears connects the first rotation axis by transmission gear, first rotation axis connects the second rotation axis by a unilateral bearing, is fixed with multiple separation wheels in the second rotation axis；Train of reduction gears is mounted on forms stand, and the first rotation axis and the second rotation axis are connect with a pickup box, and pickup box is fixed on forms stand.The utility model can make the separation wheel being connected thereto carry out low speed reversing by train of reduction gears, and the frictional force of two separation wheels and paper is promoted to be greater than the frictional force between paper and paper, drive extra paper to fall back, prevent plurality of sheets of paper while entering scanner.
Description
Technical field
The utility model relates to scanner field, in particular to a kind of paper dividing structure of scanner.
Background technique
Scanner is normally used for computer external instrument equipment, pass through capture image and it is converted into computer can be with
It has been shown that, editor, storage and the digitlization input equipment exported.In order to improve the working efficiency of scanner, the speed meeting of scanning
Greatly increase, but too fast scanning speed causes in paper paper feed, it may appear that once into plurality of sheets of paper the case where, it is scanned in this way
File can have careless mistake, leverage the work of scanner.
The paper feed of scanner is mainly the paper feeding wheel for the separation wheel and lower end for leaning on upper end to realize.Usually, paper feed
Wheel rotates clockwise, and then separation wheel rotates counterclockwise, in this way rubs paper into being scanned in scanner inside with the hands.The prior art
In, have by the way that torque limiter is arranged on paper feeding roller and control the clockwise of separation wheel and reverse, when plurality of sheets of paper enters scanner
When, the frictional force between separation wheel and upper sheet surface is greater than the frictional force between pick-up paper feeding wheel and paper lower surface, so that
It is had skidded between torque limiter and paper feed shaft, paper feeding wheel rotates in reverse direction along former direction rotation, separation wheel.But this knot
Structure, for the axis where separation wheel and paper feeding wheel with chart drive motor Synchronous Transmission, the meeting of separation wheel and paper feeding wheel carry out high speed together
Rotation, in this way in carrying out quick scanning process, it cannot be guaranteed that every time extra paper reversed can be carried out.Meanwhile it is existing
One group of pick-up wheel is arranged in meeting in technology before paper feeding wheel, its connection structure in this way is excessively complicated.
Utility model content
It is easily operated the technical problem to be solved by the utility model is to provide a kind of structure is simple, it can slowly run
Separation wheel, and then make every time only into a piece of paper scanner paper dividing structure.
The technical scheme in the invention for solving the above technical problem are as follows: a kind of paper dividing structure of scanner, including one
Left side plate is fixedly installed with forms stand on the left side plate, and installation is equipped with chart drive motor and the on the forms stand
One paper feeding roller, first paper feeding roller one end are connect with the chart drive motor, the first paper feeding roller other end and reduction gearing
Group engagement, the train of reduction gears connect the first rotary axle box by transmission gear, and first rotary axle box passes through a torque
Limiter connects the second rotary axle box, is fixed with multiple separation wheels on second rotary axle box；The train of reduction gears peace
Installing is set on forms stand, and first rotary axle box and the second rotary axle box are connect with a separation wheel cover board, the separation
Wheel cover board is fixed on the forms stand.
Preferably, pick-up paper feeding wheel corresponding with separation wheel, the pick-up paper feeding wheel are additionally provided on the left side plate
It is driven by pick-up rotation axis, the pick-up rotation axis is driven by pickup motor.In this way, pick-up paper feeding wheel is matched with separation wheel,
Paper is directed into inside scanner.
Preferably, the second paper feeding roller, second paper feeding roller one end and chart drive motor are also equipped on the left side plate
Connection.In this way, can be oriented to by the second paper feeding roller to the paper entered inside scanner.
Preferably, multiple paper feed wheel gum covers are equipped on first paper feeding roller and second paper feeding roller, it is the multiple
It is correspondingly provided with follower below paper feed wheel gum cover, passes through the fixed axis connection of follower, institute between the adjacent follower in left and right
Follower fixing axle is stated to be fixed on scanner by spring or support frame.In this way, passing through the work of paper feed wheel gum cover and follower
With, to enter scanner inside paper be oriented to, so that it is directed to optoelectronic scanning position.
Preferably, the train of reduction gears is mounted on forms stand, first rotary axle box and the second rotation
Axle sleeve and a movable connection of separation wheel cover board, the separation wheel cover board are fixed on forms stand.In this way, being convenient for each component
It is fixedly connected on forms stand.
Preferably, the separation wheel cover board is equipped with a platen wheel support, and the platen wheel support is fixed on far from scanning
Separation wheel side inside instrument, the pressure roller pedestal lower end are equipped with a guide rod and a pressure roller.In this way, guide rod can be right
Paper carries out guiding role, and rush makes it into inside scanner；Pressure roller in platen wheel support is used for platen, can increase paper
The pressure between pick-up paper feeding wheel is opened, facilitates paper feeding by increasing friction force, while pressure roller can also prevent paper from sticking up
It rises.
Preferably, it is connect by torsional spring with a paper aligning piece below the platen wheel support.In this way, paper is swept in entrance
It before retouching instrument, is first aligned with paper aligning piece, keeps paper not crooked, it is best that guarantee scans the paper effect come.
Preferably, the separation wheel is two.In such manner, it is possible to increase the friction between upper sheet surface, it is easily introduced into
Scanner inside makes paper reversed scanner.
Preferably, the top on the left side plate between the first paper feeding roller and the second paper feeding roller is equipped with a compressing member,
The chart drive motor leads to belt and connects first paper feeding roller, compressing member and the second paper feeding roller.In this way, the effect of compressing member makes to press
Tight belt, promote its it is each be completely embedded it is non-slip.
Compared with the prior art, the advantages of the utility model are: can make to be connected thereto by train of reduction gears
Separation wheel carries out low speed reversing, and when multi-paper feed, the frictional force of separation wheel and paper is greater than the friction between paper and paper
Power, separation wheel reverse, and drive extra paper to fall back, prevent multi-paper feed；Using two groups of separation wheels and slowly run, can mention
Frictional force between high separation wheel and paper, keeps separation effect more preferable.
Detailed description of the invention
The paper dividing structure schematic diagram of Fig. 1 the utility model scanner；
Fig. 2 the utility model scanner paper dividing structure faces schematic internal view；
Enlarged structure schematic diagram at A in Fig. 3 the utility model Fig. 2；
Fig. 4 the utility model scanner paper dividing structure backsight schematic internal view；
Enlarged structure schematic diagram at B in Fig. 5 the utility model Fig. 4.
Figure label explanation: 1, left side plate, 2, forms stand, 3, chart drive motor, the 4, first paper feeding roller, the 5, second paper feed
Roller, 6, train of reduction gears, the 7, first rotary axle box, 8, transmission gear, the 9, second rotary axle box, 10, separation wheel, 11, separation wheel
Cover board, 12, paper feed wheel gum cover, 13, follower, 14, follower fixing axle, 15, platen wheel support, 151, guide rod, 16, platen
Wheel, 17, torsional spring, 18, paper aligning piece, 19, compressing member, 20, pick-up paper feeding wheel, 21, pick-up rotation axis, 22, pickup motor.
Specific embodiment
The embodiments of the present invention are further described with reference to the accompanying drawing.
As shown in Figs. 1-5, the present embodiment is related to a kind of paper dividing structure of scanner, including a left side plate 1.Left side plate
Forms stand 2 is fixedly installed on 1, installation is equipped with chart drive motor 3 and the first paper feeding roller 4, the first paper feeding roller 4 on forms stand 2
One end is driven by chart drive motor 3, and 4 other end of the first paper feeding roller engages connection with train of reduction gears 6.
As illustrated in figures 4-5, wherein train of reduction gears 6 connects one end of the first rotary axle box 7 by transmission gear 8, specifically
For, train of reduction gears 6 can directly engage connection with transmission gear 8, and transmission gear 8 is driven by the first rotary axle box 7 again；
Alternatively, train of reduction gears 6 first directly engages connection with transmission gear 8, then transmission gear 8 passes through other rotation axis and drives,
It is connect again by gear drive with the first rotary axle box 7.
In the present embodiment, the first rotary axle box 7 is connect by torque limiter with the second rotary axle box 9, the second rotation
Multiple separation wheels 10 are fixed on axle sleeve 9.In this way, seeing that can the first rotary axle box 7 band by torque limiter come equilibrant force
Separation wheel 10 on dynamic second rotary axle box 9 is rotated.Being arranged to multiple separation wheels 10 is to increase it between paper
Frictional force, readily paper can be imported in scanner or outside reversed scanner, as a preference, separation wheel 10 can be with
It is set as two.
As shown in connection with fig. 1, wherein train of reduction gears 6 is mounted on forms stand 2, the first rotary axle box 7 and second
Rotary axle box 9 is connect with a separation wheel cover board 11, and separation wheel cover board 11 is fixed on forms stand 2.First rotary axle box 7 and
It is equipped with a fixing axle in two rotary axle box 9, for fixing the first rotary axle box 7 and the second rotary axle box 9.
In actual use, it also needs to be equipped with pick-up paper feeding wheel 20 corresponding with separation wheel 10 on left side plate 1, pick up
Paper paper feeding wheel 20 is driven by pick-up rotation axis 21, and pick-up rotation axis 21 is driven by pickup motor 22.Pick-up paper feeding wheel outer diameter is cased with
One layer of rubber is equipped with multiple grooves along the parallel direction of pick-up rotation axis 21 on rubber, convenient for picking up paper.Pick-up paper feeding wheel
20 by increasing its outer diameter, such as present 46mm, and such pick-up paper feeding wheel is provided simultaneously with the effect of pick-up and paper feed, more traditional
Paper dividing structure eliminates one group of wheel.Pick-up wheel and paper feeding wheel is generally respectively set in traditional paper dividing structure, whole when that can make in this way
The volume of a device increases, and structure is also relative complex.
As shown in connection with fig. 4, as a further improvement, being also equipped with the second paper feeding roller 5 on left side plate 1, the second paper feeding roller 5
One end is connect with chart drive motor 3, and the other end is arranged on left side plate 1.It is equipped on first paper feeding roller 4 and the second paper feeding roller 5
Multiple paper feed wheel gum covers 12, are correspondingly provided with follower 13 below multiple paper feed wheel gum covers 12, between the adjacent follower 13 in left and right
It is connected by follower fixing axle 14, follower fixing axle 14 is fixed on forms stand 2 by spring or support frame.By walking
The effect of paper wheel gum cover 12 and follower 13, will pick up into the paper inside scanner conduct in photoelectric scanning device into
The scanning of row paper.
In conjunction with shown in Fig. 1-3, in the present embodiment, separation wheel cover board 11 is equipped with a platen wheel support 15, pressure roller branch
Frame 15 is fixed on far from 10 side of separation wheel inside scanner, and 15 lower end of platen wheel support is equipped with a guide rod 151 and a pressure
Paper wheel 16.The effect of guide rod 151 is that paper is directed into inside scanner.Pressure roller 16 in platen wheel support 15 is for pressing
Paper can increase the pressure between paper and pick-up paper feeding wheel 20, facilitate paper feeding, while pressure roller 16 by increasing friction force
It can also prevent paper from tilting.
Wherein, guide rod 151 can be integrally designed with platen wheel support 15.
As shown in connection with fig. 5, as a preference, being connected below platen wheel support 15 by torsional spring 17 and a paper aligning piece 18
It connects.In this way, paper before entering scanner, is first aligned with paper aligning piece 18, keeps paper not crooked, guarantee scans next
Paper effect is best.The dynamics very little of torsional spring 17, when paper enters inside scanner, paper can push up paper aligning piece 18
It opens.
As shown in connection with fig. 2, in the present embodiment, on left side plate 1 between the first paper feeding roller 4 and the second paper feeding roller 5
Top is equipped with a compressing member 19, and chart drive motor 3 leads to belt and connects the first paper feeding roller 4, compressing member 19 and the second paper feeding roller 5.In this way,
By compressing member 19 make compress belt, promote its it is each be completely embedded it is non-slip.It is of course also possible to be designed to that chart drive motor 3 is logical
Gear or chain is crossed to connect with the first paper feeding roller 4 and the second paper feeding roller 5.
Working principle: (1) paper feed working condition: 3 inverse clock high-speed rotation of chart drive motor drives the first paper feeding roller 4 and the
Two paper feeding rollers 5 carry out paper feed, then drive to train of reduction gears 6 by the first paper feeding roller 4, by transmission gear 8 make separation wheel 10 into
Row low speed reverses (clockwise rotation)；Simultaneously 22 clockwise of pickup motor rotation, drive pick-up rotation axis 21, and then make pick-up into
The rotation of 20 clockwise of paper wheel.
(2) there was only a piece of paper or without paper-like state: 20 revolving speed of pick-up paper feeding wheel is very fast, and 10 revolving speed of separation wheel is slower, and two
It is all clockwise rotation；But because the second rotary axle box 9 where separation wheel 10 has a relationship of torque limiter, separation wheel 10 with
Frictional force between pick-up paper feeding wheel 20 is greater than the power of torque limiter, and separation wheel 10 can be turned together by the drive of pick-up paper feeding wheel 20
Dynamic, i.e., 20 clockwise of pick-up paper feeding wheel rotates, and separation wheel 10 rotates counterclockwise；
(3) into plurality of sheets of paper state: the frictional force between separation wheel 10 and paper is greater than the frictional force opened between paper and paper,
The frictional force between separation wheel 10 and pick-up paper feeding wheel 20 is less than the power of torque limiter simultaneously, so that 7 meeting of the first rotary axle box
Drive the second rotary axle box 9, and then reverse separation wheel 10, at this point, pick-up paper feeding wheel 20 rotate clockwise the lower paper of drive into
Enter in scanner, separation wheel 10 rotates clockwise the upper paper reversed scanner of drive.
The utility model has the following beneficial effects: the separation wheel being connected thereto can be made to carry out low speed by train of reduction gears
It reverses, when multi-paper feed, the frictional force of separation wheel and paper is greater than the frictional force between paper and paper, and separation wheel reverses,
It drives extra paper to fall back, prevents multi-paper feed；Using two groups of separation wheels and slowly run, can improve separation wheel and paper
Between frictional force, keep separation effect more preferable.
Several preferred embodiments of the present invention have shown and described in above description, but as previously described, it should be understood that this
Utility model is not limited to forms disclosed herein, and should not be regarded as an exclusion of other examples, and can be used for various
Other combinations, modification and environment, and above-mentioned introduction or related fields can be passed through within the scope of the inventive concept described herein
Technology or knowledge be modified.And changes and modifications made by those skilled in the art do not depart from the spirit and model of the utility model
It encloses, then it all should be in the protection scope of the appended claims for the utility model.
Claims (9)
1. a kind of paper dividing structure of scanner, including a left side plate (1), paper feed is fixedly installed on the left side plate (1)
Bracket (2), installation is equipped with chart drive motor (3) and the first paper feeding roller (4), first paper feeding roller (4) on the forms stand (2)
One end is connect with chart drive motor (3), it is characterised in that: and the first paper feeding roller (4) other end is engaged with train of reduction gears (6),
The train of reduction gears (6) passes through one by transmission gear (8) connection the first rotary axle box (7), first rotary axle box (7)
Torque limiter connects the second rotary axle box (9), is fixed with multiple separation wheels (10) on second rotary axle box (9).
2. the paper dividing structure of scanner according to claim 1, it is characterised in that: be additionally provided on the left side plate (1)
Pick-up paper feeding wheel (20) corresponding with separation wheel (10), the pick-up paper feeding wheel (20) are driven by pick-up rotation axis (21), institute
Pick-up rotation axis (21) is stated to be driven by pickup motor (22).
3. the paper dividing structure of scanner according to claim 1, it is characterised in that: also installed on the left side plate (1)
Have the second paper feeding roller (5), described second paper feeding roller (5) one end is connect with chart drive motor (3).
4. the paper dividing structure of scanner according to claim 3, it is characterised in that: first paper feeding roller (4) and described
Be equipped with multiple paper feed wheel gum covers (12) on second paper feeding roller (5), be correspondingly provided with below the multiple paper feed wheel gum cover (12) by
Driving wheel (13) is connected between multiple followers (13), the follower fixing axle (14) by follower fixing axle (14)
It is fixed on forms stand (2) by spring or support frame.
5. the paper dividing structure of scanner according to claim 1, it is characterised in that: train of reduction gears (6) installation is set
It sets on forms stand (2), first rotary axle box (7) and the second rotary axle box (9) can live with a separation wheel cover board (11)
Dynamic connection, the separation wheel cover board (11) are fixed on forms stand (2).
6. the paper dividing structure of scanner according to claim 5, it is characterised in that: the separation wheel cover board (11) is equipped with
One platen wheel support (15), the platen wheel support (15) is fixed on far from separation wheel (10) side inside scanner, described
Platen wheel support (15) lower end is equipped with a guide rod (151) and a pressure roller (16).
7. the paper dividing structure of scanner according to claim 6, it is characterised in that: logical below the platen wheel support (15)
Torsional spring (17) is crossed to connect with a paper aligning piece (18).
8. the paper dividing structure of scanner according to claim 1, it is characterised in that: the separation wheel (10) is two.
9. the paper dividing structure of scanner according to claim 1, it is characterised in that: first on the left side plate (1)
Top between paper feeding roller (4) and the second paper feeding roller (5) is equipped with a compressing member (19), and the chart drive motor (3) leads to belt connection
First paper feeding roller (4), compressing member (19) and the second paper feeding roller (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821102535.XU CN208369683U (en) | 2018-07-12 | 2018-07-12 | A kind of paper dividing structure of scanner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821102535.XU CN208369683U (en) | 2018-07-12 | 2018-07-12 | A kind of paper dividing structure of scanner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208369683U true CN208369683U (en) | 2019-01-11 |
Family
ID=64925108
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821102535.XU Active CN208369683U (en) | 2018-07-12 | 2018-07-12 | A kind of paper dividing structure of scanner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208369683U (en) |
-
2018
- 2018-07-12 CN CN201821102535.XU patent/CN208369683U/en active Active
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