CN101486416B - Printing paper feeding device - Google Patents
Printing paper feeding device Download PDFInfo
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- CN101486416B CN101486416B CN2009100955420A CN200910095542A CN101486416B CN 101486416 B CN101486416 B CN 101486416B CN 2009100955420 A CN2009100955420 A CN 2009100955420A CN 200910095542 A CN200910095542 A CN 200910095542A CN 101486416 B CN101486416 B CN 101486416B
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- cam
- rollers
- printing paper
- rotating disc
- paper feeding
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Abstract
The invention provides a printing paper feeder, belonging to the technical field of machinery, which solves the technical problems in the existing printing paper feeders such as loud noise, large transmission clearance, short service life and low precision and the like. The printing paper feeder comprises a frame, wherein, a driving shaft and a plurality of parallelly arranged paper feeding rollers are arranged on the frame, a cam is fixed on the driving shaft, a rotating mechanism is arranged at one side of the cam, a transmission mechanism is arranged between the rotating mechanism which comprises a rotary shaft and a rotary disk fixed on the rotary shaft and the paper feeding rollers, and a roller set which is arranged corresponding to the cam and can drive the rotary disk to rotate to set angles under the propping action of the cam when the cam rotates for one circle is arranged on the rotary disk, and consists of a plurality of rollers arranged at the outer periphery of the rotary shaft along the circumferential direction. The printing paper feeder has the advantages of low noise, high working accuracy, long service life and excellent working stability and the like.
Description
Technical field
The present invention relates to field of mechanical technique, especially relate to a kind of printing paper feeding device.
Background technology
In daily life, the past is mainly write by artificial manually operated written literal and finishes, and manually writes and has not only wasted a large amount of time but also be difficult to have guaranteed written attractive in appearance.Along with the development of society, for the efficient that guarantees to write, machineries such as automatic printing and duplicating have appearred thereupon.In these mechanical equipments, the machine for paper-feeding part that is absolutely necessary, and the machine for paper-feeding that uses in the prior art is mainly finished the work by the transmission between the gear, but gear transmission causes a series of problems of problem such as the machine for paper-feeding noise is big, drive gap is big, the life-span is short, precision is low.
In order to overcome above-mentioned defective, people have carried out long-term exploration, have proposed various solutions.For example, Chinese patent literature discloses a kind of rotary separable device [application number: CN03143402.9], comprising: one can mesh driving gear and obtain the part hypodontia gear of initial rotation force; One with the coaxial setting of part hypodontia gear, and rotatable cam body and elastic body of engaging shoulder arranged.Clamping rpole is according to the discontinuous operation engaging of actuator or unclamp the engaging shoulder and make part hypodontia gear begin and stop the rotation.The rotational force of part hypodontia gear sends cam body to by elastic body.This rotary separable device makes less impulsive sound takes place between the stop phase clamping rpole of cam body and cam body, and such rotary separable device can provide a kind of quiet machine for paper-feeding.
Above-mentioned scheme has alleviated the problem that prior art exists to a certain extent, but installing problems such as drive gap is big, the life-span is short, precision is low still exists.In addition, this scheme complicated integral structure, manufacturing cost height.
Summary of the invention
The objective of the invention is at the problems referred to above, provide that a kind of operating noise is little, precision is high, the printing paper feeding device of long service life.
For achieving the above object, the present invention has adopted following technical proposal: this printing paper feeding device, comprise frame, on frame, be provided with an axle drive shaft and the some feeding-in rolls that are arranged in parallel, it is characterized in that, be fixed with cam on the described axle drive shaft, side at cam is provided with rotating mechanism, between rotating mechanism and feeding-in roll, be provided with transmission device, above-mentioned rotating mechanism comprises a S. A. and the rotating disc that is fixed on the S. A., be provided with corresponding setting with cam on the rotating disc and can leaning the set of rollers that driven rotary dish under the effect rotates set angle at cam during when cam rotation one circle, above-mentioned set of rollers is made up of the some rollers that circumferentially are distributed in the S. A. periphery.
When being arranged on the rotation of axle drive shaft overhead cam, cam institute projection can contact with the roller in the set of rollers and promote roller and move, thereby rotating disc is turned an angle.When the projection of cam turned over, because cam no longer promotes roller, this moment, rotating disc stopped operating.Because cam is in rotary state all the time, when the projection of cam contacted with roller once more, rotating disc turned an angle once more.So repeatedly, rotate the intermittence that can realize rotating disc.Because cam does not have the gap between the two substantially, thereby effectively reduces operating noise when promoting roller, has improved operating accuracy, increases the service life.
In above-mentioned printing paper feeding device, be fixed with several cams on the described axle drive shaft along axle drive shaft axial array and circumferential misalignment setting, be fixed with one or several rotating discs on the described S. A. along the S. A. axial array, at least one side at rotating disc is provided with one group of set of rollers, cam and the corresponding one by one setting of set of rollers, and the roller circumferential misalignment of each set of rollers is provided with.
Cam here and set of rollers quantity can design as required, but during drive shaft turns one circle, have at least all cams of a period of time all no longer to promote set of rollers cooresponding with it.So just can realize the intermittence rotation of rotating disc.
In above-mentioned printing paper feeding device, described cam is conjugate cam and has two, the corresponding one group of set of rollers that is arranged on the rotating disc of each cam, and two groups of above-mentioned set of rollers are arranged on the both sides of a rotating disc.
Conjugate cam is to control a driven member simultaneously by two cams, makes from the freedom of driven member both direction and is all limited, so two cams of conjugation must strict guarantee one advance to move back, otherwise mechanism can be stuck or damages.Conjugate cam is with corresponding set of rollers contact is very accurate separately, and the vibration that has been caused when having reduced contact is so that produce noise.
In above-mentioned printing paper feeding device, described each roller circumferentially is evenly distributed on the periphery of S. A., and roller and rotating disc are rotationally connected.
Because roller and rotating disc are rotationally connected, and can effectively improve working stability, reduce friction, and increase the service life.
In above-mentioned printing paper feeding device, described transmission device comprises the big gear wheel and several miniature gearss that are separately fixed on the feeding-in roll that are fixed on the S. A., is provided with the intermediate gear that at least one is meshed with big gear wheel and miniature gears between big gear wheel and miniature gears.Rotating disc can the driven rotary axle rotates, and is arranged on big gear wheel on the S. A. this moment and rotates again by intermediate gear and be communicated on the feeding-in roll on the miniature gears, rotates thereby drive feeding-in roll.
In above-mentioned printing paper feeding device, described cam comprises projection and circular arc shaped portion, and its projection and circular arc shaped portion all can contact with roller.
Circular arc shaped portion can contact with roller in the cam rotation process, and this moment, cam can not promote roller, and when the projection of cam contacted with roller, cam can promote roller.
Compared with prior art, the advantage of this printing paper feeding device is: 1, owing to adopt cam and the structure that roller promotes mutually, can effectively reduce the gap between the part, effectively reduce operating noise, improve operating accuracy, increase the service life.2, roller and rotating disc are rotationally connected, and can effectively reduce friction.3, can effectively reduce damage, improve working stability paper.
Description of drawings
Fig. 1 is the part-structure perspective view that the invention provides machine for paper-feeding.
Fig. 2 is the schematic top plan view that the invention provides machine for paper-feeding.
Fig. 3 is the schematic side view that the invention provides machine for paper-feeding.
Fig. 4 is the plan structure scheme drawing of Fig. 1.
Fig. 5 is the axle drive shaft structural representation that has cam that the invention provides machine for paper-feeding.
Fig. 6 is the revolute axes configuration scheme drawing that has rotating disc that the invention provides machine for paper-feeding.
Fig. 7 is the feeding-in roll structural representation that has miniature gears that the invention provides machine for paper-feeding.
Among the figure, 1, frame; 2, axle drive shaft; 21, cam; 3, feeding-in roll; 31, miniature gears; 4, S. A.; 41, rotating disc; 41a, set of rollers; 41ab, roller; 42, big gear wheel; 5, intermediate gear.
The specific embodiment
Embodiment 1:
Shown in Fig. 1～3, this printing paper feeding device comprises parts such as frame 1, axle drive shaft 2, feeding-in roll 3, cam 21, rotating mechanism, transmission device, set of rollers 41a.
On frame 1, be provided with an axle drive shaft 2 and four feeding-in rolls that are arranged in parallel 3.On axle drive shaft 2, be fixed with two conjugate cams 21 along axle drive shaft 2 axial array and circumferential misalignment setting.Side at cam 21 is provided with rotating mechanism, is provided with transmission device between rotating mechanism and feeding-in roll 3.
As shown in Figure 6, in the present embodiment, rotating mechanism comprises a S. A. 4 and the rotating disc 41 that is fixed on the S. A. 4.Shown in Fig. 1,4 and 6, be respectively equipped with in the both sides of rotating disc 41 one group with the corresponding one by one set of rollers 41a that is provided with and when cam 21 rotates a circle, can leans driven rotary dish 41 rotation set angles under the effect of cam 21 at cam 21.Set of rollers 41a is made up of the some set of rollers 41a that circumferentially are evenly distributed on S. A. 4 peripheries, and the setting of the roller 41ab circumferential misalignment of each set of rollers 41a, and roller 41ab and rotating disc 41 are rotationally connected.Conjugate cam 21 is to control a driven member simultaneously by two cams 21, and the freedom of driven member both direction is all limited, so two cams 21 of conjugation must strict guarantee one advance to move back, otherwise mechanism can be stuck or damages.Conjugate cam 21 is with corresponding set of rollers 41a contact is very accurate separately, and the vibration that has been caused when having reduced contact is so that produce noise.
In the present embodiment, cam 21 comprises projection and circular arc shaped portion, and its projection and circular arc shaped portion can contact with roller 41ab.Circular arc shaped portion can contact with rolling in 41ab in cam 21 rotation processes, and this moment, cam 21 can not promote roller 41ab, and when the projection of cam 21 contacted with roller 41ab, cam 21 can promote roller 41ab.
Shown in Fig. 1,4,7, in the present embodiment, transmission device comprises the big gear wheel 42 and four miniature gearss 31 that are separately fixed on the feeding-in roll 3 that are fixed on the S. A. 4, is provided with two intermediate gears 5 that are meshed with big gear wheel 42 and miniature gears 31 between big gear wheel 42 and miniature gears 31.Wherein, each intermediate gear 5 is meshed with two miniature gearss 31 respectively.
During work, axle drive shaft 2 drives the cam 21 that is fixed thereon and rotates, and when cam 21 rotated, 21 projections of cam can contact with the roller 41ab among the set of rollers 41a and promote roller 41ab and move, thereby rotating disc 41 is turned an angle.When projection turned over, because cam 21 no longer promotes roller 41ab, this moment, rotating disc 41 stopped operating.Because cam 21 is in rotary state all the time, when the projection of cam 21 promoted roller 41ab once more, rotating disc 41 turned an angle once more.So repeatedly, rotate the intermittence that can realize rotating disc 41.Owing to when cam 21 promotes roller 41ab, do not have the gap between the two substantially, thereby effectively reduce operating noise, improved operating accuracy, increase the service life.
Rotating disc 41 can rotate by driven rotary axle 4, and big gear wheel 42 rotations that are arranged on this moment on the S. A. 4 drive miniature gears 31 rotations that are fixed on the feeding-in roll 3 by intermediate gear 5 again, thereby make each feeding-in roll 3 realize rotating.
Embodiment 2:
In the present embodiment, be fixed with three cams 21 on the axle drive shaft 2 along axle drive shaft 2 axial array and circumferential misalignment setting, be fixed with three rotating discs 41 on the S. A. 4 along S. A. 4 axial array, be provided with one group of set of rollers 41a at rotating disc 41 sidepieces, cam 21 and the corresponding one by one setting of set of rollers 41a, and the roller 41ab circumferential misalignment of each set of rollers 41a is provided with.When axle drive shaft 2 rotates a circle, have at least all cams 21 of a period of time all no longer to promote set of rollers 41a cooresponding with it.So just can realize the intermittence rotation of rotating disc 41.All the other are all identical with embodiment, and this paper does not do and gives unnecessary details.
Embodiment 3:
In the present embodiment, be fixed with a cam 21 on the axle drive shaft 2, be fixed with a rotating disc 41 on the S. A. 4, be provided with one group of set of rollers 41a, the corresponding setting of cam 21 with set of rollers 41a at rotating disc 41 sidepieces.All the other are all identical with embodiment 1 or 2, and this paper does not do and gives unnecessary details.
Specific embodiment described herein only is that spirit of the present invention is made casehistory.The technical personnel of the technical field of the invention can be made various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present invention or surmount the defined scope of appended claims.
Although this paper has used multiple terms such as frame 1, axle drive shaft 2, cam 21, feeding-in roll 3, miniature gears 31, S. A. 4, rotating disc 41, set of rollers 41a, roller 41ab, big gear wheel 42, intermediate gear 5 morely, do not get rid of the possibility of using other term.Using these terms only is in order to describe and explain essence of the present invention more easily; They are construed to any additional restriction all is contrary with spirit of the present invention.
Claims (6)
1. printing paper feeding device, comprise frame (1), on frame (1), be provided with an axle drive shaft (2) and the some feeding-in rolls that are arranged in parallel (3), it is characterized in that, be fixed with cam (21) on the described axle drive shaft (2), side at cam (21) is provided with rotating mechanism, between rotating mechanism and feeding-in roll (3), be provided with transmission device, above-mentioned rotating mechanism comprises a S. A. (4) and is fixed on rotating disc (41) on the S. A. (4), be provided with on the rotating disc (41) with the corresponding setting of cam (21) and when cam (21) rotates a circle can cam (21) effect of leaning down driven rotary dish (41) rotate the set of rollers (41a) of set angle, above-mentioned set of rollers (41a) is made up of the some rollers (41ab) that circumferentially are distributed in S. A. (4) periphery.
2. printing paper feeding device according to claim 1, it is characterized in that, be fixed with several cams (21) on the described axle drive shaft (2) along axle drive shaft (2) axial array and circumferential misalignment setting, be fixed with one or several rotating discs (41) on the described S. A. (4) along S. A. (4) axial array, at least one side at rotating disc (41) is provided with one group of set of rollers (41a), cam (21) and the corresponding one by one setting of set of rollers (41a), and roller (41ab) the circumferential misalignment setting of each set of rollers (41a).
3. printing paper feeding device according to claim 2, it is characterized in that, described cam (21) is for conjugate cam and have two, the corresponding one group of set of rollers (41a) that is arranged on the rotating disc (4) of each cam (21), above-mentioned two groups of set of rollers (41a) are arranged on the both sides of a rotating disc (41).
4. according to claim 1 or 2 or 3 described printing paper feeding devices, it is characterized in that described each roller (41ab) circumferentially is evenly distributed on the periphery of S. A. (4), and roller (41ab) is rotationally connected with rotating disc (41).
5. according to claim 1 or 2 or 3 described printing paper feeding devices, it is characterized in that, described transmission device comprises that one is fixed on the big gear wheel (42) on the S. A. (4) and is separately fixed at several miniature gearss (31) on the feeding-in roll (3), is provided with the intermediate gear (5) that at least one is meshed with big gear wheel (42) and miniature gears (31) between big gear wheel (42) and miniature gears (31).
6. printing paper feeding device according to claim 5 is characterized in that, described cam (21) comprises projection and circular arc shaped portion, and its projection and circular arc shaped portion all can contact with roller (41ab).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100955420A CN101486416B (en) | 2009-01-19 | 2009-01-19 | Printing paper feeding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100955420A CN101486416B (en) | 2009-01-19 | 2009-01-19 | Printing paper feeding device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101486416A CN101486416A (en) | 2009-07-22 |
| CN101486416B true CN101486416B (en) | 2011-05-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100955420A Expired - Fee Related CN101486416B (en) | 2009-01-19 | 2009-01-19 | Printing paper feeding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101486416B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6235252B2 (en) * | 2013-07-04 | 2017-11-22 | Ｎｅｃプラットフォームズ株式会社 | Document feeder and document feeder assembly method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1496857A (en) * | 2002-09-30 | 2004-05-19 | �ֵܹ�ҵ��ʽ���� | Rotation clutch device and paper advance apparatus made by the device |
| CN1500630A (en) * | 2002-11-18 | 2004-06-02 | 中国印钞造币总公司 | Intermittent paper-feeding mechanism |
| CN2625152Y (en) * | 2003-07-18 | 2004-07-14 | 光宝科技股份有限公司 | Paper taking mechanism |
| CN201381123Y (en) * | 2009-01-19 | 2010-01-13 | 温岭市华驰机械有限公司 | Printing paper transporter |
-
2009
- 2009-01-19 CN CN2009100955420A patent/CN101486416B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1496857A (en) * | 2002-09-30 | 2004-05-19 | �ֵܹ�ҵ��ʽ���� | Rotation clutch device and paper advance apparatus made by the device |
| CN1500630A (en) * | 2002-11-18 | 2004-06-02 | 中国印钞造币总公司 | Intermittent paper-feeding mechanism |
| CN2625152Y (en) * | 2003-07-18 | 2004-07-14 | 光宝科技股份有限公司 | Paper taking mechanism |
| CN201381123Y (en) * | 2009-01-19 | 2010-01-13 | 温岭市华驰机械有限公司 | Printing paper transporter |
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| Publication number | Publication date |
|---|---|
| CN101486416A (en) | 2009-07-22 |
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Granted publication date: 20110511 Termination date: 20140119 |