CN207903571U - Paper-fetching mechanism - Google Patents
Paper-fetching mechanism Download PDFInfo
- Publication number
- CN207903571U CN207903571U CN201820258380.2U CN201820258380U CN207903571U CN 207903571 U CN207903571 U CN 207903571U CN 201820258380 U CN201820258380 U CN 201820258380U CN 207903571 U CN207903571 U CN 207903571U
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- CN
- China
- Prior art keywords
- paper
- contact stop
- stopper
- stop portion
- contact
- Prior art date
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- Expired - Fee Related
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Abstract
The utility model discloses a kind of paper-fetching mechanism, and in automatic sheet feeder, automatic sheet feeder has a body, which includes one into paper, a paper taking module and an at least paper stopper.It is installed on body into paper, a fluting is offered into paper middle part；Paper taking module is installed on body and is placed in comber side, which is equipped with a comber and a pickup roller, pickup roller are installed in fluting, into forming a paper feed channel between paper and pickup roller and comber；Paper stopper is hubbed on body and is placed in above pickup roller, and paper stopper has contact stop portion, and contact stop portion is contacted into paper.Such contact stop portion of paper stopper and the frictional force of paper do not make paper stopper flick, and during paper feed, paper feed channel is maintained at minimum value, individual paper is only allowed to pass through, and stop that second later paper advances, and then reduce the probability of happening of multi-paper feed.
Description
Technical field
The utility model is related to a kind of paper-fetching mechanisms, more particularly, to a kind of printer, scanner, duplicator and facsimile machine
Paper-fetching mechanism used in equal office equipment.
Background technology
The office equipment such as printer, scanner, duplicator and facsimile machine have a paper-fetching mechanism, the first prior art
In, paper-fetching mechanism includes a swing arm and a pickup roller, and swing arm contacts pickup roller, forms a closed paper feed channel, swing arm
Including a fixing end and a swinging end, swinging end can contact or with swing far from pickup roller.When paper by when, paper will
Swing arm jacks up so that creates a very small paper feed channel between swing arm end and pickup roller, a piece of paper is allowed to pass through, carry simultaneously
Second paper is given for resistance, so that a piece of paper is detached with second paper.
Specifically, when not taking paper, because swing arm own wt is kept in contact pickup roller；When pickup roller turns toward paper feed direction
When dynamic, pickup roller rotation is more than swing arm its own gravity to generate a frictional force to the frictional force that swing arm generates, and frictional force becomes
The torque rotated at swing arm so that swing arm beating heart is dynamic, to which swing arm cannot be kept in contact pickup roller, thus is supplied to paper
Frictional force it is unstable, reduce separation ability and stability；After paper is by the contact point of swing arm and pickup roller, swing arm
Swinging end bear against on paper, equally swing arm can ceaselessly be beated the frictional force that it is generated because of paper, reduce
Separation ability and stability.
Second in the prior art, and paper-fetching mechanism includes a swing arm and a pickup roller, and swing arm takes not in contact with pickup roller
Paper roller both sides have a paper feed channel, and the swinging end of swing arm stretches into below paper feed channel and not in contact with paper feed channel, viewed from one side,
The swinging end of swing arm partly overlaps with pickup roller generation, and the rotation center position of swing arm, which changes, makes swing arm maintain one and consolidate
Positioning is set, and can not be flicked, and to improve the stability of separation, but such design because of swing arm and takes paper not in contact with paper feed channel
Idler wheel has overlapping so that paper will be by from swing arm and taking paper after can only being jacked up by or by swing arm below the swing arm at swing arm
Pass through between idler wheel.It is related to the angle on swing arm front end inclined-plane if paper jacks up swing arm, according to U.S. Patent No.
The patent of US9114947B2 describes, and when testing same paper, bevel angle is smaller, and separation ability is poorer, and paper ability is taken to get over
Good, conversely, bevel angle is bigger, separation ability is better, takes paper ability poorer.In order to improve separation ability, bevel angle is all inclined
Greatly；And paper is then limited to paper thickness below swing arm by way of, it is identical in paper stress value, ground paper
Deflection is far smaller than the deflection of thin paper, therefore ground paper cannot deform and pass through below swing arm, can only jack up swing arm,
In order to make ground paper paper feed smooth, raising takes paper ability, and bevel angle is less than normal, and separation is less able, divides thin paper to reduce
Paper effect, conversely, ground paper takes paper difficult, the separation effect of thin paper will improve.Therefore, it is lance that ground paper, which takes the separation of paper and thin paper,
Shield, when design, can only select one of which, therefore the stability of separation declines.
But the above-mentioned prior art, the stability of separation cannot be all effectively improved, multi-paper feed is easy tod produce.
Utility model content
The purpose of the utility model is to overcome above-mentioned deficiency in the prior art, provide that a kind of separation stability is high to be taken
Mechanism of paper.
To achieve the goals above, the utility model provides a kind of paper-fetching mechanism and is installed in an automatic sheet feeder, from
Dynamic feeder has a body, which includes one into paper, a paper taking module and an at least paper stopper.It is installed into paper
In on body, a fluting is offered into paper middle part；Paper taking module is installed on body and is placed in comber side, this takes paper
Module is equipped with a comber and a pickup roller, pickup roller are installed in fluting, is rolled into paper and pickup roller with separation
A paper feed channel is formed between wheel；Paper stopper is hubbed on body and is placed in above pickup roller, and paper stopper has contact stop
Portion, contact stop portion are contacted into paper.
Further, the paper stopper includes drive-connecting shaft, and the direction of drive-connecting shaft is vertical with paper feed direction, the position of drive-connecting shaft
Front positioned at contact stop portion and the contact point into paper.
Further, the body includes a machine shell, and machine shell has pivoted hole, into paper at fluting front end cell wall
Extend rearwardly to form the cam part of a cam-like；Paper stopper includes one first paper stopper and one second paper stopper, the first paper stopper
One first swing arm that is extended to form rearward from first pivoting portion rear end with a first pivoting portion, one, one are from swing arm end
The one first contact stop portion that is bent to form and continue to tilt one extended to form upwards backward from the first contact stop portion end
Linking arm, the first contact stop lower surface are plane, and first pivoting portion both sides are convexly equipped with the first drive-connecting shaft, in the first paper stopper
Offer an escape groove for running through the first swing arm, the first contact stop portion and linking arm；Second paper stopper has one second pivot joint
Portion and one extend back from second pivoting portion rear end after be folded upward at one second swing arm extended to form backward again, in the second swing arm
The downward projection in portion forms one second contact stop portion, and the second contact stop lower surface is plane, the projection of second pivoting portion both sides
There are the second drive-connecting shaft, first pivoting portion and second pivoting portion to be articulated in the pivoted hole of machine shell, the first contact stop portion and
Two contact stop lower surfaces contact the cam part upper surface into paper, and the second paper stopper is placed in escape groove.
Further, first contact stop portion and the second contact stop lower surface are plane.
Further, first contact stop portion and the contact point of the second contact stop portion and cam part be not in same water
In plane.
Further, the paper stopper includes drive-connecting shaft, and the direction of drive-connecting shaft is parallel with paper feed direction.
Further, the body include a machine shell, machine shell have pivoted hole, into paper in fluting both sides punish
It is not convexly equipped with the cam part of a cam-like, paper stopper, which includes one first paper stopper and one second paper stopper, the first paper stopper, to be had
One first pivoting portion and one bend downward the one first contact stop portion extended to form, the first pivot outward from first pivoting portion end
Socket part both sides are convexly equipped with the first drive-connecting shaft；Second paper stopper has a second pivoting portion and one from second pivoting portion end to extroversion
Lower to bend the one second contact stop portion that extends to form, second pivoting portion both sides are convexly equipped with the second drive-connecting shaft, first pivoting portion and
Second pivoting portion is articulated in the pivoted hole of machine shell, the first paper stopper and the second paper stopper in paper feed direction in tandem,
First contact stop portion and the second contact stop lower surface contact the cam part upper surface into paper.
Further, first contact stop portion and the second contact stop lower surface are plane.
Further, first contact stop portion and the contact point of the second contact stop portion and cam part be not in same water
In plane.
As described above, the utility model paper-fetching mechanism is contacted by contact stop portion into paper, the contact of such paper stopper
The frictional force of stopper section and paper does not make paper stopper flick, and during paper feed, paper feed channel is maintained at minimum value, only allows
Individual paper passes through, and stops that second later paper advances, and then reduces the probability of happening of multi-paper feed.
Description of the drawings
Fig. 1 is a kind of stereogram of embodiment of the utility model paper-fetching mechanism.
Fig. 2 is the stereogram exploded view of the utility model paper-fetching mechanism shown in Fig. 1.
Fig. 3 is another stereogram of the utility model paper-fetching mechanism shown in Fig. 1.
Fig. 4 is the side view of the utility model paper-fetching mechanism shown in Fig. 1.
Fig. 5 is the stereogram of another embodiment of the utility model paper-fetching mechanism shown in Fig. 1.Fig. 6 is that this practicality shown in Fig. 5 is new
The stereogram exploded view of type paper-fetching mechanism.
Fig. 7 is the side view of the utility model paper-fetching mechanism shown in Fig. 5.
The reference numerals are as follows for each parts in figure.
Reference numeral is as follows：
Paper-fetching mechanism 100
Into paper 10
Fluting 11
Cam part 12
Paper taking module 20
Comber 21
Pickup roller 22
Paper stopper 30
First paper stopper 31
First pivoting portion 311
First swing arm 312
First contact stop portion 313
Linking arm 314
First drive-connecting shaft 315
Escape groove 316
Second paper stopper 32
Second pivoting portion 321
Second swing arm 322
Second contact stop portion 323
Second drive-connecting shaft 324
Machine shell 40
Pivoted hole 41
Paper feed channel 50
Paper-fetching mechanism 100 '
Into paper 10 '
Fluting 11 '
Cam part 12 '
Paper taking module 20 '
Comber 21 '
Pickup roller 22 '
Paper stopper 30 '
First pivoting portion 311 '
First contact stop portion 312 '
First drive-connecting shaft 313 '
Second paper stopper 32 '
Second pivoting portion 321 '
Second contact stop portion 322 '
Second drive-connecting shaft 323 '
Machine shell 40 '
Pivoted hole 41 '
Paper feed channel 50 '.
Specific implementation mode
For the technology contents of the utility model, construction feature, the objects and the effects are described in detail, below in conjunction with implementation
Mode simultaneously coordinates attached drawing to be explained in detail.
It please refers to Fig.1 to Fig. 5, is the first embodiment of the utility model paper-fetching mechanism 100, the utility model paper-fetching mechanism
100 are installed in an automatic sheet feeder (not shown), which has the function of scanning paper and card, send automatically
It includes a machine shell 40 that paper utensil, which has a body (not shown), body, and machine shell 40 has pivoted hole 41.The automatic sheet feeder
Paper-fetching mechanism 100 include one into paper 10, a paper taking module 20 and an at least paper stopper 30.
It is described to be installed in machine shell 40 into paper 10, a fluting 11 is offered into the middle part of paper 10, into paper 10 in opening
The cam part 12 of a cam-like is extended rearwardly to form at 11 front end cell wall of slot.
The paper taking module 20 is installed in machine shell 40, and the paper taking module 20 enters automatic paper feeding to capture paper
Device, the paper taking module 20 are equipped with a comber 21 and a pickup roller 22, and pickup roller 22 is installed in fluting 11, into paper
A paper feed channel 50 is formed between 10 and pickup roller 22 and comber 21.Specifically, cam part 12 and pickup roller 22 with
The paper feed channel 50 is formed between comber 21.
The paper stopper 30 is hubbed on body 40 and is placed in 21 side of comber, and paper stopper 30 has a contact stop
Portion, contact stop portion are contacted into paper 10.Specifically, paper stopper 30 includes one first paper stopper 31 and one second paper stopper 32,
First paper stopper 31 has one first that a first pivoting portion 311, one extends to form rearward from 311 rear end of first pivoting portion
One first contact stop portion 313 that swing arm 312, one is bent to form from 312 end of the first swing arm and from the first contact stop portion
313 ends continue to tilt the linking arm 314 extended to form upwards backward, and 313 lower surface of the first contact stop portion is plane, the
One articulated section, 311 both sides are convexly equipped with the first drive-connecting shaft 315, and one is offered in the first paper stopper 31 and runs through the first swing arm 312, first
The escape groove 316 of contact stop portion 313 and linking arm 314；Second paper stopper 32 has a second pivoting portion 321 and one from second
321 rear end of articulated section is folded upward at one second swing arm 322 extended to form, 322 middle part of the second swing arm backward again after extending back
Downward projection forms one second contact stop portion 323, and 323 lower surface of the second contact stop portion is plane, 321 liang of second pivoting portion
Side is convexly equipped with the second drive-connecting shaft 324.
First pivoting portion 311 and second pivoting portion 321 are articulated in the pivoted hole 41 of machine shell 40, the first drive-connecting shaft 315
And second drive-connecting shaft 324 direction it is vertical with paper feed direction, 323 following table of the first contact stop portion 313 and the second contact stop portion
Face contacts 12 upper surface of cam part into paper 10, and the second paper stopper 32 is placed in escape groove 316, the first contact stop portion
313 and second contact stop portion 323 and cam part 12 contact point not in same level, and the first drive-connecting shaft 315 and the
The position of two drive-connecting shafts 324 is located at the contact point in the first contact stop portion 313 and the second contact stop portion 323 and cam part 12
Front, the contact stop portion of such paper stopper 30 and the frictional force of paper can not be such that paper stopper 30 flicks, in the process of paper feed
In, paper feed channel 50 is maintained at minimum value, individual paper is only allowed to pass through, and stops that second later paper advances, in turn
Reduce the probability of happening of multi-paper feed.
Fig. 6 and Fig. 7 is please referred to, is the second embodiment of the utility model paper-fetching mechanism 100 '.The utility model takes paper machine
Structure 100 ' is installed in an automatic sheet feeder (not shown), which has the function of scanning paper and card, from
It includes a machine shell 40 ' that dynamic feeder, which has a body (not shown), body, and machine shell 40 ' has pivoted hole 41 '.It should be certainly
The paper-fetching mechanism 100 ' of dynamic feeder includes one into paper 10 ', a paper taking module 20 ' and an at least paper stopper 30 '.
It is described to be installed on body 40 ' into paper 10 ', a fluting 11 ' is offered into 10 ' middle part of paper, into paper 10 '
It is convexly equipped with the cam part 12 ' of a cam-like respectively at 11 ' both sides of slotting.
The paper taking module 20 ' is installed in machine shell 40 ', and the paper taking module 20 ' enters automatically to capture paper
Feeder, which is equipped with a comber 21 ' and a pickup roller 22 ', pickup roller 22 ' are installed in fluting 11 '
It is interior, into forming a paper feed channel 50 ' between paper 10 ' and pickup roller 22 ' and comber 21 '.Specifically, cam part 12 '
And the paper feed channel 50 ' is formed between pickup roller 22 ' and comber 21 '.
The paper stopper 30 ' is hubbed on body 40 ' and is placed in 21 ' side of comber, and paper stopper 30 ' has a contact
Stopper section, contact stop portion are contacted into paper 10 '.Specifically, paper stopper 30 ' includes one first paper stopper 31 ' and a second gear
Paper 32 ', the first paper stopper 31 ' are bent downward with a first pivoting portion 311 ' and one from 311 ' end of first pivoting portion outward
The one first contact stop portion 312 ' extended to form, 312 ' lower surface of the first contact stop portion are plane, first pivoting portion 311 '
Both sides are convexly equipped with the first drive-connecting shaft 313 '；Second paper stopper 32 ' has a second pivoting portion 321 ' and one from second pivoting portion
321 ' ends bend downward the one second contact stop portion 322 ' extended to form outward, and 322 ' lower surface of the second contact stop portion is
Plane, 321 ' both sides of second pivoting portion are convexly equipped with the second drive-connecting shaft 323 '.321 ' pivot of first pivoting portion 311 ' and second pivoting portion
It being connected in the pivoted hole 41 of machine shell 40 ', the direction of the first drive-connecting shaft 313 ' and the second drive-connecting shaft 323 ' is parallel with paper feed direction,
First paper stopper 31 ' and the second paper stopper 32 ' are in tandem, the first contact stop portion 312 ' and second contacts in paper feed direction
322 ' lower surface of stopper section contacts the 12 ' upper surface of cam part into paper 10 ', and the contact of the first contact stop portion 312 ' and second stops
The contact point of stopper 322 ' and cam part 12 ' is not in same level.The contact stop portion of such paper stopper 30 ' and paper
Frictional force still so that paper stopper 30 ' is flicked, during paper feed, paper feed channel 50 is maintained at minimum value, only allows single
It opens paper to pass through, and stops that second later paper advances, and then reduce the probability of happening of multi-paper feed.
When the utility model paper-fetching mechanism 100,100 ' works, paper taking module 20,20 ' drives paper to enter, paper ejection
The entrance of paper stopper 30,30 ' is opened, because own wt generates a torque T 1, paper stopper 30,30 ' can push paper stopper 30,30 '；First
Opening has mutual frictional force between paper and paper stopper 30,30 ', first paper generates a paper feed direction to paper stopper 30,30 '
Frictional force, to generate a torque T 2；Because having the frictional force of interaction, a piece of paper between first paper and second paper
Second paper can be driven forward during paper feed (when without departing from second paper) by opening, and second paper, which has, encounters paper stopper
30,30 ' and under being kept off by paper stopper 30,30 ', second paper can give the active force of paper stopper 30,30 ' one paper feed directions, to
A torque T 3 is generated, the direction of rotation of torque T 1, T2 and T3 is consistent, and paper stopper 30,30 ' can be made more to compress first paper, from
And be not easy to be flicked, to realize the probability of happening for reducing multi-paper feed.
As described above, the utility model paper-fetching mechanism 100,100 ' is contacted by contact stop portion into paper, specifically, the
One contact stop portion 313,312 ' and the second contact stop portion 323,322 lower surfaces contact the cam part 12 into paper 10,10 ',
12 ' upper surfaces, the contact stop portion of such paper stopper 30,30 ' and the frictional force of paper flick paper stopper 30,30 ', into
During paper, paper feed channel 50,50 ' is maintained at minimum value, individual paper is only allowed to pass through, and stop second it is later
Paper advances, and then reduces the probability of happening of multi-paper feed.
Claims (9)
1. a kind of paper-fetching mechanism is installed in an automatic sheet feeder, automatic sheet feeder has a body, it is characterised in that：This takes
Mechanism of paper includes one into paper, a paper taking module and an at least paper stopper；It is installed on body into paper, is opened up into paper middle part
There is a fluting；Paper taking module is installed on body, which is equipped with a comber and a pickup roller, pickup roller dress
In fluting, into forming a paper feed channel between paper and pickup roller and comber；Paper stopper be hubbed on body and
It is placed in comber side, paper stopper has contact stop portion, and contact stop portion is contacted into paper.
2. paper-fetching mechanism as described in claim 1, it is characterised in that：The paper stopper includes drive-connecting shaft, the direction of drive-connecting shaft
Vertical with paper feed direction, the position of drive-connecting shaft is located at the front in contact stop portion and the contact point into paper.
3. paper-fetching mechanism as claimed in claim 2, it is characterised in that：The body includes a machine shell, and machine shell has pivot
Hole is connect, extends rearwardly to form the cam part of a cam-like at fluting front end cell wall into paper；Paper stopper includes a first gear paper
There is a first pivoting portion, one to extend shape rearward from first pivoting portion rear end for part and one second paper stopper, the first paper stopper
At one first swing arm, an one first contact stop portion being bent to form from swing arm end and from the first contact stop portion end after
Continuous to tilt the linking arm extended to form upwards backward, the first contact stop lower surface is plane, and first pivoting portion both sides are convex
Equipped with the first drive-connecting shaft, an evacuation for running through the first swing arm, the first contact stop portion and linking arm is offered in the first paper stopper
Slot；Second paper stopper is folded upward at extension backward again after extending back from second pivoting portion rear end with a second pivoting portion and one
One second swing arm formed, the downward projection of the second middle part of swing arm form one second contact stop portion, second contact stop subordinate's table
Face is plane, and second pivoting portion both sides are convexly equipped with the second drive-connecting shaft, and first pivoting portion and second pivoting portion are articulated in machine shell
In pivoted hole, the first contact stop portion and the second contact stop lower surface contact the cam part upper surface into paper, second gear
Paper is placed in escape groove.
4. paper-fetching mechanism as claimed in claim 3, it is characterised in that：First contact stop portion and the second contact stop portion
Lower surface is plane.
5. paper-fetching mechanism as claimed in claim 4, it is characterised in that：First contact stop portion and the second contact stop portion
Contact point with cam part is not in same level.
6. paper-fetching mechanism as described in claim 1, it is characterised in that：The paper stopper includes drive-connecting shaft, the direction of drive-connecting shaft
It is parallel with paper feed direction.
7. paper-fetching mechanism as claimed in claim 6, it is characterised in that：The body includes a machine shell, and machine shell has pivot
Connect hole, into paper on be convexly equipped with the cam part of a cam-like respectively at fluting both sides, paper stopper include one first paper stopper and
One second paper stopper, the first paper stopper bend downward extension shape outward with a first pivoting portion and one from first pivoting portion end
At one first contact stop portion, first pivoting portion both sides are convexly equipped with the first drive-connecting shaft；Second paper stopper has one second pivot joint
Portion and one bend downward the one second contact stop portion extended to form outward from second pivoting portion end, second pivoting portion both sides are convex
Equipped with the second drive-connecting shaft, first pivoting portion and second pivoting portion are articulated in the pivoted hole of machine shell, the first paper stopper and second
Paper stopper is in tandem, the first contact stop portion and the second contact stop lower surface are contacted into the convex of paper in paper feed direction
Wheel portion upper surface.
8. paper-fetching mechanism as claimed in claim 7, it is characterised in that：First contact stop portion and the second contact stop portion
Lower surface is plane.
9. paper-fetching mechanism as claimed in claim 8, it is characterised in that：First contact stop portion and the second contact stop portion
Contact point with cam part is not in same level.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820258380.2U CN207903571U (en) | 2018-02-14 | 2018-02-14 | Paper-fetching mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820258380.2U CN207903571U (en) | 2018-02-14 | 2018-02-14 | Paper-fetching mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207903571U true CN207903571U (en) | 2018-09-25 |
Family
ID=63560088
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820258380.2U Expired - Fee Related CN207903571U (en) | 2018-02-14 | 2018-02-14 | Paper-fetching mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207903571U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110467019A (en) * | 2018-12-11 | 2019-11-19 | 虹光精密工业（苏州）有限公司 | The feed mechanism of transaction machine |
-
2018
- 2018-02-14 CN CN201820258380.2U patent/CN207903571U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110467019A (en) * | 2018-12-11 | 2019-11-19 | 虹光精密工业（苏州）有限公司 | The feed mechanism of transaction machine |
| CN110467019B (en) * | 2018-12-11 | 2024-03-22 | 虹光精密工业（苏州）有限公司 | Feeding mechanism of business machine |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180925 Termination date: 20200214 |