CN1315707C - Paper fetch method - Google Patents
Paper fetch method Download PDFInfo
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- CN1315707C CN1315707C CNB2004100316655A CN200410031665A CN1315707C CN 1315707 C CN1315707 C CN 1315707C CN B2004100316655 A CNB2004100316655 A CN B2004100316655A CN 200410031665 A CN200410031665 A CN 200410031665A CN 1315707 C CN1315707 C CN 1315707C
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- China
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- paper
- pickup roller
- feeding box
- gap
- positioning cam
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Abstract
The present invention relates to a paper taking method which is suitable for paper taking mechanisms, such as printing machines, facsimile machines, copying machines, or other printing equipment, etc. The paper taking method of the present invention comprises the following steps: firstly, a paper taking roller and a positioning cam are rotated so that a gap between the paper taking roller and a corresponding paper feeding casket is larger than a paper fixing gap; secondly, the paper feeding casket moves to a first paper taking position through the rotation of the positioning cam, wherein a file is held between the paper feeding casket and the paper taking roller; thirdly, the file is forced to move along the rotation direction of the paper taking roller until the paper taking roller reverts to the position of the paper fixing gap.
Description
Technical field
The invention relates to a kind of Paper fetch method, and particularly relevant for a kind of Paper fetch method that prevents the file resilience.
Background technology
Present laser printer, ink jet printer on the market, in numerous consumption electronic products, show one's talent, its reason reduces gradually nothing more than price, and has the letter quality effect, make more approaching true, the distinct color of image of individual photo, colour/black and white file, and the interface (as the USB coffret) by high transmission speed, can make chopping machine when carrying out large scale and high-resolution printing, its speed of transmission is faster, so the user needn't wait for the time that data transmission consumes, and then has strengthened the efficient of chopping machine.
No matter be laser printer, ink jet printer, facsimile apparatus, with affairs machine or other printing device of functions such as fax, scanning, the design of paper-fetching mechanism is indispensable.Complicated paper-fetching mechanism drives pickup roller and other paper feed or comber for example with double motor type of drive or multiple tooth wheels type of drive.Even no matter paper-fetching mechanism drives in which way, basically, paper-fetching mechanism is inner main with the mutual motion between the feeding box of an at least one pickup roller and at least one positioning cam and printing device, moves along a paper path with transmission paper or recordable media.Wherein, when print file such as paper or recordable media were arranged in paper path, pickup roller can force above-mentioned print file to move along the hand of rotation of pickup roller by the mode of friction of rolling, to finish the action of once getting paper.
Fig. 1 is the scheme drawing of known a kind of paper-fetching mechanism.Please refer to Fig. 1, paper-fetching mechanism 100 mainly comprises at least one pickup roller 110 and at least one positioning cam 120.Pickup roller 110 for example is sheathed in the rotating shaft 112 with positioning cam 120, and rotating shaft 112 can be rotated by the drive of motor (being) or gear cluster (being).Wherein, pickup roller 110 for example is a D type pickup roller, is covered with the rubber 114 of a great friction coefficient on its arc-shaped surface, is beneficial to drive file 10 or other print file by paper path (shown in dotted line), wherein the former feeding box 130 that is placed in of this document.
It should be noted that, the known purpose that pickup roller 110 is set, only be merely as the usefulness of clamping file 10, so that file 10 is during by the gap between pickup roller 110 and the feeding box 130, file 10 can move along paper path by the friction of rolling of pickup roller 110.Therefore, when being known in the position that pickup roller 110 is set, do not consider other purpose, whether can be but merely consider file 10 by the gap between pickup roller 110 and the feeding box 130, then adjust greatly if the gap is too little, smaller if the gap is too greatly then adjusted, that's what it all adds up to.But because the difference in thickness of file 10 little (ground paper only), and the shaft core position of pickup roller 110 is constant, therefore pickup roller 110 is before getting the paper action, keep bigger fixed interval (FI) P (for example greater than 5mm) between its initial position and the feeding box 130, as shown in Figure 1, but also make file 10 be in uncontrolled state, unless add a paper-pressing mechanism (for example certain paper ring again, be not), fix pressure holding file 10 and be positioned over the position of feeding box 130, but the assembling of paper-pressing mechanism and cost all can increase, and obviously do not conform to cost benefit.
Summary of the invention
Therefore, purpose of the present invention is providing a kind of Paper fetch method exactly, need not add under the situation of paper-pressing mechanism, can keep files such as paper, photograph or recordable media to be under the in check state.
Another object of the present invention provides a kind of Paper fetch method, and wherein pickup roller is finished and got paper action when getting back to the initial position, also can keep in the gaps of file between pickup roller and feeding box such as paper, photograph or recordable media.
Other purpose of the present invention and advantage can obtain the understanding in a nearly step from the disclosed technical characterictic of the present invention.
For reaching one of above-mentioned or partly or whole purposes, the present invention proposes a kind of Paper fetch method, is applicable to that on the paper-fetching mechanism of a printing device, wherein this printing device has a feeding box.Paper-fetching mechanism comprises at least one pickup roller and at least one positioning cam, and wherein pickup roller and positioning cam drive by a rotating shaft and rotate, and the definition pickup roller is with respect to having certain paper gap between the feeding box.Paper fetch method of the present invention comprises the following steps: (1) rotation pickup roller and positioning cam so that pickup roller with respect to the gap between the feeding box greater than deciding the paper gap; (2) make the rotation of feeding box by positioning cam move to and get the paper position, wherein file system is held between feeding box and the pickup roller; And (3) force file to move along the hand of rotation of pickup roller, is returned to the position of deciding place, paper gap up to pickup roller.
Described according to preferred embodiment of the present invention, in the above-mentioned steps (1), pickup roller and positioning cam for example earlier rotate one first angle by deciding the paper position, or rotate one first angle by the position of deciding place, paper gap, so that file and pickup roller are disengaged position, wherein first angle is less than 45 degree.Then, in step (2), when pickup roller and positioning cam rotated to first angle, feeding box moves to got the paper position, or after pickup roller and positioning cam rotated to first angle, feeding box just moves to got the paper position.
Similarly, described according to preferred embodiment of the present invention, in the above-mentioned steps (3), pickup roller for example forces file to move along the hand of rotation of pickup roller by friction of rolling or other induced way, with finish get paper action till.
The present invention adopts to have concurrently and gets paper and the paper-fetching mechanism of decide the paper function and reach and get paper and move.Therefore, need not add under any paper-pressing mechanism, single pickup roller just can reach the effect of deciding paper and getting paper respectively, suitably the file of being got is maintained under the in check state.
For above and other objects of the present invention, feature and advantage can be become apparent, a preferred embodiment cited below particularly, and cooperate appended graphicly, be described in detail below:
Description of drawings
Fig. 1 is the scheme drawing of known a kind of paper-fetching mechanism.
Fig. 2 is the schematic flow sheet of a kind of Paper fetch method of a preferred embodiment of the present invention.
When Fig. 3～Fig. 6 is respectively utilization Paper fetch method of the present invention, the action scheme drawing between pickup roller and the file.
10,20,22: file
100: paper-fetching mechanism
110: pickup roller
112: rotating shaft
114: rubber
120: positioning cam
130: feeding box
200: paper-fetching mechanism
210: pickup roller
212: rotating shaft
214: rubber
216: corner area
220: positioning cam
230: feeding box
232: movable plate
P, P1, P2: gap
The specific embodiment
Please refer to Fig. 2, it is the schematic flow sheet of a kind of Paper fetch method of a preferred embodiment of the present invention, is applicable on the paper-fetching mechanism.When Fig. 3～Fig. 6 is respectively utilization Paper fetch method of the present invention, the action scheme drawing between pickup roller and the file.
As shown in Figure 2, Paper fetch method of the present invention mainly comprises the following steps: step 1 S110, rotation pickup roller and positioning cam so that pickup roller with respect to the gap between the feeding box greater than deciding the paper gap; Step 2 S120, feeding box move to one and get the paper position, and wherein folder is held between feeding box and the pickup roller; And step 3 S130, force file to move along the hand of rotation of pickup roller, be returned to the position of deciding place, paper gap up to pickup roller.
In step 1 S110, pickup roller 210 for example is sheathed in the rotating shaft 212 with positioning cam 220, and rotating shaft 212 can be rotated by the drive of a motor (being) or gear cluster (being), as shown in Figure 3.It should be noted that and do not carry out anyly when getting paper action (initial condition) when paper-fetching mechanism 200 that pickup roller 210 is in respectively on certain paper position with positioning cam 220, wherein the gap between pickup roller 210 and the feeding box 230 is defined as paper gap P1.In the present embodiment, for example the corner area 216 with a D type pickup roller 210 forms a less clearance P1 between pickup roller 210 and feeding box 230, and particularly this gap P1 preferred range is for example between 1.1mm～0.7mm.If during greater than 1.1mm, file 20 is under the uncontrolled state easily, if the fluency when then influencing file 20 paper feeds easily less than 0.7mm.
Then, in step 1 S110, when pickup roller 210 by an initial position (being that file is decided the paper position) when beginning to rotate, rotate one first angle θ as shown in Figure 4, at this moment, the corner area 216 of pickup roller 210 and the gap P2 between the feeding box 230 broaden because of pickup roller 210 rotations one angle.Obviously find that the gap P2 among Fig. 4 between pickup roller 210 and the feeding box 230 is greater than gap, the location P1 between pickup roller among Fig. 3 210 and the feeding box 230, so the time file 20 by a mobile distance under the drive of pickup roller 210.
Then, in step 2 S120, the purpose of positioning cam 220 is to withstand the movable plate 232 of feeding box 230 earlier, is in the end earlier and gets on the position of paper, as shown in Figure 3 so that be positioned over file 20 on the movable plate 232.Then, in Fig. 4, when positioning cam 220 and pickup roller 210 rotate one first angle θ simultaneously, the circular movement of the movable plate 232 of feeding box 230 by positioning cam 220 moves to be got on the paper position for the first time, so that file 20 can be close to the arc-shaped surface of pickup roller 210, be beneficial to get the paper action.In the present embodiment, pickup roller 210 and positioning cam 220 be 25 degree of rotation earlier～30 degree for example, and the movable plate 232 of feeding box 230 just move to Fig. 4 is got the paper position for the first time afterwards.In addition, pickup roller 210 and positioning cam 220 for example rotate 25 degree～30 when spending, and get the paper position first time that the movable plate 232 of feeding box 230 also moves to Fig. 4 simultaneously.Certainly, the first angle θ of present embodiment is not limited to 25 degree～30 degree, and maximum can arrive about 45 degree.
Then, in step 3 S130, for example be covered with rubber 214 or other material of a great friction coefficient on the arc-shaped surface of pickup roller 210, and can driving file 20 by the mode of friction of rolling, moves pickup roller 210 along the rotation direction of pickup roller 210, with the action of carrying out getting paper for the first time, as shown in Figure 5, wherein in getting the paper process, the arc-shaped surface of pickup roller 210 is consistent substantially with respect to the gap between the feeding box 230, and file 20 is held between pickup roller 210 and the feeding box 230.Then, in Fig. 6, when pickup roller 210 and positioning cam 220 finish get the paper action for the first time after, then be returned to and decide the paper position, be the position of deciding paper gap P1 shown in Figure 1, so in the present embodiment, pickup roller 210 is got the paper action except finishing, more but locating file 20 is in less gap P1, to prevent file 20 resiliences.。Therefore, repeat the Paper fetch method of above-mentioned three steps of the present invention, then can finish for the second time, wait for the third time file 22 to get the paper action continuously, and finish each time and get after the paper action, pickup roller 210 and positioning cam 220 are returned to the paper position of deciding shown in Figure 1.
By above-mentioned explanation as can be known, paper-fetching mechanism of the present invention can not only be reached a series of paper action of getting, and file can remain among the less gap P1 between pickup roller 210 and the feeding box 230 getting after the paper action finishes.Therefore, need not add under any paper-pressing mechanism, single pickup roller 210 just can reach the effect of deciding paper and getting paper respectively, suitably file 20 or the paper of being got maintained under the in check state.
In sum, Paper fetch method of the present invention is applicable on the paper-fetching mechanism of chopping machine, facsimile apparatus, duplicator, multifunctional paper feeding machine or other printing device etc., and wherein pickup roller is not only with the location and the effect of getting paper, and simple structure and practicality.Therefore, the advantage of Paper fetch method of the present invention can reduce following 3 points:
(1) pickup roller is in getting after paper action finishes, and its function can be considered certain paper roller, is under the in check state to keep file.
(2) pickup roller still can prevent the effect of file resilience in getting after paper action finishes, and therefore can not influence the fluency of file transfer.
(3) pickup roller does not come locating file with location and the effect of getting paper so need not add paper-pressing mechanism, and then reduces the assembling and the cost of paper-fetching mechanism.
What must illustrate is, the alleged paper of the present invention is not limited to the recordable media (recordingmedium) of certain paper or specific Gong printing, anyly literal, figure or pattern are printed medium or media on it for printing device, all belong to the alleged paper of the present invention, therefore the alleged feeding box of the present invention also can be described as the recordable media case, get paper and roll Lun and can be described as recordable media and pick up roller, paper-fetching mechanism can be described as the recordable media mechanism for picking, by that analogy; In addition, aforementioned alleged file is to comprise any recordable media or media for printing, no matter whether literal, figure or pattern are arranged on it; In addition, the alleged printing device of the present invention comprises chopping machine, facsimile apparatus, duplicator, multifunctional paper feeding machine or other and has and contain the machine of getting the paper function.
Claims (9)
1. Paper fetch method, be applicable to a printing device, this printing device has a paper-fetching mechanism and a feeding box at least, wherein at least one recordable media is positioned on this feeding box, this paper-fetching mechanism comprises at least one pickup roller and at least one positioning cam, and wherein this pickup roller and this positioning cam drive by a rotating shaft and rotate, and define this pickup roller with respect to having certain paper gap between this feeding box, it is characterized in that this Paper fetch method comprises the following steps:
Rotate this pickup roller and this positioning cam, so that this pickup roller is decided the paper gap with respect to the gap between this feeding box greater than this;
Make the rotation of this feeding box by this positioning cam move to one and get the paper position, wherein this recordable media is held between this feeding box and this pickup roller; And
Force this recordable media to move, be returned to the position that this decides place, paper gap up to this pickup roller along the hand of rotation of this pickup roller.
2. Paper fetch method as claimed in claim 1 is characterized in that, this pickup roller and this positioning cam rotate one first angle by this position of deciding place, paper gap earlier, and wherein this first angle is smaller or equal to 45 degree.
3. Paper fetch method as claimed in claim 2 is characterized in that, when this pickup roller and this positioning cam rotated to this first angle, this feeding box moved to this and gets the paper position.
4. Paper fetch method as claimed in claim 2 is characterized in that, this pickup roller and this positioning cam rotate to after this first angle, and this feeding box moves to this and gets the paper position.
5. Paper fetch method as claimed in claim 2 is characterized in that, the rotation of this pickup roller and this positioning cam is greater than after this first angle, and this pickup roller is consistent with respect to the gap between this feeding box, up to finish get the paper action till.
6. Paper fetch method as claimed in claim 1 is characterized in that, this pickup roller forces this recordable media to move along the hand of rotation of this pickup roller by friction of rolling.
7. Paper fetch method, be applicable to a printing device, this printing device has a paper-fetching mechanism and a feeding box at least, wherein at least one recordable media is positioned on this feeding box, and this paper-fetching mechanism comprises at least one pickup roller and at least one positioning cam, and wherein this pickup roller and this positioning cam drive by a rotating shaft and rotate, define this pickup roller when primary importance, with respect to having one first gap between this feeding box, it is characterized in that this Paper fetch method comprises the following steps:
Rotate this pickup roller and this positioning cam by primary importance to the second place, this recordable media is contacted with this pickup roller essence;
The rotation pickup roller makes this recordable media move along the hand of rotation of this pickup roller, is returned to primary importance up to this pickup roller, and recordable media is subjected to restraining of first gap and locatees on this feeding box at this moment.
8. Paper fetch method as claimed in claim 7 is characterized in that, the scope in this first gap is 0.7 to 1.1mm.
9. Paper fetch method as claimed in claim 7 is characterized in that, this pickup roller forces this recordable media to move along the hand of rotation of this pickup roller by friction of rolling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100316655A CN1315707C (en) | 2004-04-02 | 2004-04-02 | Paper fetch method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100316655A CN1315707C (en) | 2004-04-02 | 2004-04-02 | Paper fetch method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1676447A CN1676447A (en) | 2005-10-05 |
| CN1315707C true CN1315707C (en) | 2007-05-16 |
Family
ID=35049220
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100316655A Expired - Fee Related CN1315707C (en) | 2004-04-02 | 2004-04-02 | Paper fetch method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1315707C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11847661B2 (en) | 2017-11-30 | 2023-12-19 | 3M Innovative Properties Company | Image based counterfeit detection |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6067340A (en) * | 1983-09-21 | 1985-04-17 | Konishiroku Photo Ind Co Ltd | Transfer unit |
| US5123583A (en) * | 1989-08-21 | 1992-06-23 | Brother Kogyo Kabushiki Kaisha | Paper feeder for printers |
| US5172899A (en) * | 1989-04-28 | 1992-12-22 | Seikosha Co., Ltd. | Paper feeder |
| US5222724A (en) * | 1990-08-08 | 1993-06-29 | Seiko Epson Corporation | Paper feeder |
| CN2334588Y (en) * | 1998-01-24 | 1999-08-25 | 力捷电脑股份有限公司 | Paper feeder |
| CN1453992A (en) * | 2002-04-24 | 2003-11-05 | 力捷电脑股份有限公司 | Automatic paper feeder |
-
2004
- 2004-04-02 CN CNB2004100316655A patent/CN1315707C/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6067340A (en) * | 1983-09-21 | 1985-04-17 | Konishiroku Photo Ind Co Ltd | Transfer unit |
| US5172899A (en) * | 1989-04-28 | 1992-12-22 | Seikosha Co., Ltd. | Paper feeder |
| US5123583A (en) * | 1989-08-21 | 1992-06-23 | Brother Kogyo Kabushiki Kaisha | Paper feeder for printers |
| US5222724A (en) * | 1990-08-08 | 1993-06-29 | Seiko Epson Corporation | Paper feeder |
| CN2334588Y (en) * | 1998-01-24 | 1999-08-25 | 力捷电脑股份有限公司 | Paper feeder |
| CN1453992A (en) * | 2002-04-24 | 2003-11-05 | 力捷电脑股份有限公司 | Automatic paper feeder |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11847661B2 (en) | 2017-11-30 | 2023-12-19 | 3M Innovative Properties Company | Image based counterfeit detection |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1676447A (en) | 2005-10-05 |
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