CN201158554Y - Paper-separating mechanism of automatic paper feeding device - Google Patents
Paper-separating mechanism of automatic paper feeding device Download PDFInfo
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- CN201158554Y CN201158554Y CNU2008200060017U CN200820006001U CN201158554Y CN 201158554 Y CN201158554 Y CN 201158554Y CN U2008200060017 U CNU2008200060017 U CN U2008200060017U CN 200820006001 U CN200820006001 U CN 200820006001U CN 201158554 Y CN201158554 Y CN 201158554Y
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- paper
- distributing mechanism
- torsion spring
- pickup roller
- sheet feeder
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Abstract
The utility model provides a paper separating mechanism for an automatic paper feeder, which comprises a bracket assembly, wherein at least one torsional spring is arranged on the bracket assembly, and the torsional spring has a swing arm, a pressing arm pressed on the bracket assembly, and a torsional spring body installed on the bracket assembly. A pressing block is pivotally arranged on the swing arm and capable of rotating relative to the torsional spring. The paper separating mechanism also comprises a paper collecting roller wheel, and a paper separating gasket arranged between the paper collecting roller wheel and the pressing block. Because the pressing block is capable of automatically swinging in accordance with the position variation relative to the paper fetching roller wheel, so that the paper separating mechanism provided in the utility model can accurately collect paper.
Description
Technical field
The utility model relates to a kind of automatic sheet feeder, particularly a kind of paper distributing mechanism of automatic sheet feeder.
Background technology
Automatic sheet feeder is widely used in the office equipment such as chopping machine, duplicator, scanner, multifunctional paper feeding machine, and it can be sent into the paper in the feeding box in the office equipment.For preventing that the paper more than two or two from entering in the office equipment simultaneously, is typically provided with paper distributing mechanism on the automatic sheet feeder.
See also Fig. 1 and Fig. 2, a kind of paper distributing mechanism of existing automatic sheet feeder comprises a pickup roller 910, a friction lining 920, a press block 930 and a spring 940.Press block 930 has a top board 932, is fixed with armshaft 934 on the top board 932, and armshaft 934 is provided with a pivot 936, and pivot 936 is installed in the lid (not shown).Spring 940 be resisted against press block 930 top board 932 the middle part and apply an application force by this top board 932 to friction lining 920, the elastic force of spring 940 makes this friction lining 920 be close to pickup roller 910.Utilize the difference of friction force between pickup roller 910, many paper and the friction lining 920, pickup roller 910 can be sent paper into office equipment one by one.
Yet, find in use, see also Fig. 3, the paper distributing mechanism of above-mentioned automatic sheet feeder is when having above the plurality of sheets of paper 950 engaging friction sheets 920 of determining thickness and the A district between the pickup roller 910, plurality of sheets of paper 950 can be propped up friction lining 920, friction lining 920 can further lift press block 930 again and make press block 930 left-hand revolutions, thereby the front portion of the top board 932 of press block 930 will be more away from pickup roller 910, shown in the B district; The manufacturing errors of office equipment and use front portion that wearing and tearing also may cause top board 932 in addition away from the more situation of pickup roller 910; In the front portion of top board 932 away from pickup roller 910 more for a long time, be difficult to guarantee normal friction force magnitude relationship between pickup roller 910, many paper and the friction lining 920, therefore often cause reliably separation of paper distributing mechanism, thereby cause automatic sheet feeder once in office equipment, to carry plurality of sheets of paper.
Summary of the invention
The purpose of this utility model is to provide a kind of paper distributing mechanism that can improve the automatic sheet feeder of getting the paper accuracy at the defective that the above-mentioned background technology exists.
For achieving the above object, the paper distributing mechanism of automatic sheet feeder provided by the utility model comprises a bracket assembly, a press block, one minute paper packing, a pickup roller and at least one torsion spring.Divide paper packing to be located between press block and the pickup roller.Torsion spring have swing arm, by be pressed on the bracket assembly by pressure arm and be installed in torsion spring body on the bracket assembly.Press block is installed on the swing arm.
From the above mentioned, useful technique effect of the present utility model is, the paper distributing mechanism of automatic sheet feeder of the present utility model is installed on the swing arm owing to press block, so press block can be according to produce swing voluntarily with the variation of pickup roller relative position relation, thereby make the branch paper packing be close to pickup roller, and then the position that keeps relative stability with pickup roller relation, guaranteed further that also pickup roller, plurality of sheets of paper open and divide between the paper packing normal friction force magnitude relationship, and finally guarantee automatic sheet feeder paper distributing mechanism get the paper accuracy.
Description of drawings
Fig. 1 is the block diagram of the paper distributing mechanism of prior art.
Fig. 2 is the three-dimensional side view of another angle of paper distributing mechanism shown in Figure 1.
Fig. 3 is the lateral plan of paper distributing mechanism a kind of state in getting the paper process shown in Figure 1.
Fig. 4 is the block diagram after paper distributing mechanism of the present utility model removes lid.
Fig. 5 is the block diagram of the lid of paper distributing mechanism of the present utility model.
Fig. 6 is the enlarged drawing of the I part of Fig. 5.
Fig. 7 is the three-dimensional exploded view of paper distributing mechanism shown in Figure 4.
Fig. 8 is the spring bearer plate of paper distributing mechanism shown in Figure 4 and the block diagram of support.
Fig. 9 is the torsion spring of paper distributing mechanism shown in Figure 4 and the block diagram of press block.
Figure 10 is the block diagram of torsion spring when state of nature of paper distributing mechanism shown in Figure 4.
Figure 11 is the block diagram of the torsion spring of paper distributing mechanism shown in Figure 4 at a kind of torsional deformation state.
Figure 12 is the lateral plan of paper distributing mechanism shown in Figure 4.
Wherein, description of reference numerals is as follows:
The paper distributing mechanism 10 of automatic sheet feeder
Press surface 210 back-up blocks 220
Loading plate 310 fixed legs 311
Against piece 320 grooves 322
Economize hopper 324 hold down grooves 326
Spacers post 328 fixed parts 340
Assisted parts 350 spring bearer plates 400
Holding part 421 elastic arms 422
Elastic arm support portion 423 pressure sections 430
Compress arm 432 and compress end 434
Protect 520 fens paper packings 600 of paper portion
Axis hole 716 torsion springs 740
Torsion spring body 741 is pressed pressure arm 742
Press block 930 top boards 932
Armshaft 934 pivots 936
The specific embodiment
For describing technology contents of the present utility model, the purpose that is realized and effect in detail, describe in detail below in conjunction with embodiment and conjunction with figs..
For ease of narration, the moving direction with paper is defined as the place ahead in an embodiment; The above-below direction of present embodiment is as the criterion with shown in Figure 4.
See also Fig. 4, Fig. 5, Fig. 6 and Fig. 7, the paper distributing mechanism 10 of automatic sheet feeder of the present utility model comprises a pickup roller 100, bracket assembly, spring bearer plate 400, protects paper packing 500, divides paper packing 600, press block 710 and torsion spring 740, the paper distributing mechanism of present embodiment has a torsion spring, but its quantity can be a plurality of not as limit.
Bracket assembly comprises a lid 200 and a support 300.Lid 200 covers are overlying on the support 300, lid 200 is defined as press surface 210 near the one side of support 300, protrude out 220, two back-up blocks 220 of two back-up blocks parallel and that keep at a certain distance away on this press surface 210 and all inwardly protrude out a projection 222, as Fig. 5, shown in Figure 6.
Please consult Fig. 7, Fig. 8 in conjunction with Fig. 4, support 300 places the top of pickup roller 100, and it has a tabular loading plate 310.The upper surface of loading plate 310 upwards vertically protrudes out three fixed legs 311.The both sides of loading plate 310 are along extending a fixed part 340 respectively, and the front end of fixed part 340 bending downwards extends to form assisted parts 350, and fixed part 340 and assisted parts 350 are separately fixed on the lid 200.The middle part on the edge, front of loading plate 310 bending downwards is extended with one against piece 320, offer from top to bottom a groove 322 against the front surface of piece 320,322 both sides all offer province's hopper 324 against piece 320 in groove, and this province's hopper 324 is for preventing against the too thick material-saving structure of doing of piece 320.Rear surface against piece 320 offers a square hold down groove 326, protrudes out two spacers posts 328 downwards against the bottom of piece 320.
Protecting paper packing 500 is to be formed by a thin plastic sheet or metal sheet bending, and it has the paper stopping part 510 that is tabular and reaches from the extended paper portion 520 that protects of paper stopping part 510 bendings.Paper stopping part 510 is fixed in the hold down groove 326 of support 300.Protect the place ahead that the bottom surface of paper portion 520 and pickup roller 100 have certain distance and be positioned at elastic arm 422.
Divide paper packing 600 to place the place ahead of protecting paper packing 500, the friction coefficient between itself and the paper is usually greater than the friction coefficient between paper and the paper, but less than the friction coefficient between pickup roller 100 and the paper.Paper packing 600 had one and was tabular separation portion 630 this minute, and the afterbody of separation portion 630 is resisted against on the outside face of pickup roller 100.Offer two through holes 632 in the separation portion 630, through hole 632 is sheathed on the spacers post 328 of support 300, with will divide paper packing 600 be fixed on support 300 on piece 320.Cut out a pad pressure section 636 in the separation portion 630, the end 434 that compresses of described spring bearer plate 400 is replaced on this pad pressure section 636, and this pad pressure section 636 is resisted against on the outside face of pickup roller 100.
See also Fig. 7 and Fig. 9, press block 710 has the top board 711 that is rectangle, and top board 711 presses in the separation portion 630 of branch paper packing 600.The two ends of top board 711 are raised with axle bed 715, offer axis hole 716 on the axle bed 715.
Please consult Fig. 9 and Figure 10 in conjunction with Fig. 4, Fig. 7, torsion spring 740 has the screw-shaped torsion spring body 741 of two horizontally sets, be connected with between the inner of two torsion spring bodies 741 one be " U " shape press pressure arm 742, should be by pressure arm 742 by on the press surface 210 that is pressed in lid 200; The ring center of two torsion spring bodies 741 is pivot holes 745, and the two ends in this pivot hole 745 are sheathed on respectively on the projection 222 of respective support piece 220 of lid 200, with this torsion spring 740 are installed on the lid 200; A swing arm 743 is all extended in the outer end of two torsion spring bodies 741, and the end of swing arm 743 has a bending and extends the pivot 744 that forms, and pivot 744 is set in the axis hole 716 of press block 710.
Described torsion spring 740 is when paper distributing mechanism 10 assemblings of automatic sheet feeder, should make two torsion spring bodies 741 that a torsional deformation is arranged, thereby press pressure arm 742 and swing arm 743 meeting formation power F ', F as shown in figure 11, swing arm 743 is by the 744 pushing press blocks 710 of the pivot in the axis hole 716 that is installed in press block 710 and then make branch paper packing 600 be close to pickup roller 100, and press block 710 relative torsion springs 740 can rotate, and guarantee that further the top board 711 of press block 710 is close to branch paper packing 600 and then is made branch paper packing 600 be close to pickup roller 100.
The separation process of the paper distributing mechanism 10 of automatic sheet feeder of the present utility model below is described in detail in detail.
Please consult Figure 12 in conjunction with Fig. 4, Fig. 7, when having plurality of sheets of paper to open to be placed in the paper box (not shown), the front end that plurality of sheets of paper is opened can rely on the end of self gravitation pushing and pressing elastic arm 422 and enter between the end of pickup roller 100 and elastic arm 422, elastic arm 422 can be pushed because of paper and cause distortion to bestow paper one pressure, this pressure can be passed to pickup roller 100 by paper, and pickup roller 100 produces friction force with this and drive paper when rotating and moves.Thereby plurality of sheets of paper is opened and is had paper stopping part 510 that the part paper is subjected to protecting paper packing 500 stop and stop to move a small amount of paper is only arranged still along with pickup roller 100 continues to move in the process that moves, and once keeps off the paper action thereby finish.After this, the paper portion 520 that protects that protects paper packing 500 comforts platen and opens to prevent that paper from curling.
When paper continues to move to branch paper packing 600 places, divide paper packing 600 can carry out the separation action, divide pad pressure section 636 elastic deformations of paper packing 600 and be resisted against on the outside face of pickup roller 100, paper carries out a separation at this place; Afterwards, a little paper carries out the separation second time entering under the drive of pickup roller 100 between separation portion 630 and the pickup roller 100, at the swing arm 743 of torsion spring 740 with press under the effect of pressure arm 742, the top board 711 and the separation portion 630 of press block 710, separation portion 630 opens with plurality of sheets of paper, plurality of sheets of paper open and pickup roller 100 between remain the state of closed contact, thereby guarantee pickup roller 100, normal friction force magnitude relationship between branch paper packing 600 and plurality of sheets of paper are opened, therefore can guarantee preferably that 100 of pickup rollers deliver to a paper in the office equipment, thereby finish the separation action of paper distributing mechanism 10.
From the above mentioned, the paper distributing mechanism of automatic sheet feeder of the present utility model is by twist torsion that deformation produces and act on press block 710 by the swing arm 743 of 740 two outer ends of torsion spring press block 710 relative torsion springs 740 are rotatablely moved of torsion spring 740, press block 710 pushing and pressing divide paper packing 600, this structure has been guaranteed to divide paper packing 600 to be close to the outside face of pickup roller 100 before the separation, divide paper packing 600 to be close to paper in the separation process and paper is close to the outside face of pickup roller 100, divide paper packing 600 to recover the state of being close to the outside face of pickup roller 100 after separation is finished, improve the purpose that pickup roller 100 is got the paper accuracy thereby reach.
On the other hand, press block 710 is articulated on the pivot 744 of swing arm 743 ends, so press block 710 can be according to produce swing voluntarily with the variation of pickup roller 100 relative position relations, make the branch paper packing be close to pickup roller, thereby concern with the position that pickup roller 100 keeps relative stability, guaranteed further that also pickup roller 100, plurality of sheets of paper open and divide between the paper packing 600 normal friction force magnitude relationship, and finally guarantee automatic sheet feeder paper distributing mechanism get the paper accuracy.
Moreover because torsion spring 740 is horizontally set, therefore occupation space is little in a longitudinal direction, and this energy actv. reduces the volume of paper distributing mechanism.
Claims (6)
1. the paper distributing mechanism of an automatic sheet feeder, comprise a bracket assembly, a press block, one fen paper packing and a pickup roller, this minute, paper packing was located between this press block and this pickup roller, it is characterized in that, this paper distributing mechanism has a torsion spring at least, this torsion spring have swing arm, by be pressed on this bracket assembly by pressure arm and be installed in torsion spring body on this bracket assembly, described press block is installed on this swing arm.
2. the paper distributing mechanism of automatic sheet feeder according to claim 1, it is characterized in that: described torsion spring has two described torsion spring bodies, all extends a described swing arm on two described torsion spring bodies; Two described torsion spring bodies are linked together by pressure arm by described.
3. the paper distributing mechanism of automatic sheet feeder according to claim 2, it is characterized in that, a pivot is extended in the end bending of described swing arm, offers two axis holes on the described press block, and described press block is sheathed on this pivot respectively by described two axis holes and then is installed on this swing arm.
4. the paper distributing mechanism of automatic sheet feeder according to claim 1 is characterized in that, described bracket assembly includes a support, and this support has a loading plate, and this loading plate one lateral margin extends to form one against piece, should be provided with two spacers posts against piece; Offer two through holes on the described minute paper packing, described two through holes are set with on a spacers post.
5. the paper distributing mechanism of automatic sheet feeder according to claim 4 is characterized in that, is equiped with a spring bearer plate on the described support, and this spring bearer plate has two elastic arms and a pressure section, and the end of described two elastic arms contacts the surface of this pickup roller; Described minute paper packing cuts out a pad pressure section movably, and this pressure section presses on this pad pressure section.
6. the paper distributing mechanism of automatic sheet feeder according to claim 5 is characterized in that, describedly offers a hold down groove on piece, and this hold down groove internal fixation protects paper packing, and this protects paper packing and has the paper of protecting portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200060017U CN201158554Y (en) | 2008-01-29 | 2008-01-29 | Paper-separating mechanism of automatic paper feeding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200060017U CN201158554Y (en) | 2008-01-29 | 2008-01-29 | Paper-separating mechanism of automatic paper feeding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201158554Y true CN201158554Y (en) | 2008-12-03 |
Family
ID=40109147
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200060017U Expired - Fee Related CN201158554Y (en) | 2008-01-29 | 2008-01-29 | Paper-separating mechanism of automatic paper feeding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201158554Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101783847B (en) * | 2009-01-20 | 2012-07-18 | 崴强科技股份有限公司 | Automatic file processing device |
| CN110843356A (en) * | 2019-12-06 | 2020-02-28 | 宁波得力科贝技术有限公司 | Paper blocking mechanism |
-
2008
- 2008-01-29 CN CNU2008200060017U patent/CN201158554Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101783847B (en) * | 2009-01-20 | 2012-07-18 | 崴强科技股份有限公司 | Automatic file processing device |
| CN110843356A (en) * | 2019-12-06 | 2020-02-28 | 宁波得力科贝技术有限公司 | Paper blocking mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081203 Termination date: 20140129 |