CN102556743B - Reversal control device, imaging equipment and operating method - Google Patents
Reversal control device, imaging equipment and operating method Download PDFInfo
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- CN102556743B CN102556743B CN201210019381.9A CN201210019381A CN102556743B CN 102556743 B CN102556743 B CN 102556743B CN 201210019381 A CN201210019381 A CN 201210019381A CN 102556743 B CN102556743 B CN 102556743B
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- control device
- reversal control
- transmission mechanism
- cam mechanism
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Abstract
The invention provides a reversal control device, which comprises an input transmission mechanism, an intermediate transmission mechanism and a switching mechanism, wherein the switching mechanism comprises a cam mechanism, a linkage mechanism and a triggering mechanism for controlling intermittent mesh of the cam mechanism with the input transmission mechanism.
Description
Technical field
The present invention relates to printing technology device, in particular to a kind of reversal control device and the imaging device that comprises this reversal control device.The invention still further relates to a kind of method of utilizing this reversal control device to handle the rotation direction of the reverse roll in imaging device.
Background technology
The function of imaging device of the prior art is more and more complete, and most imaging devices have double-face imaging function, is used for making paper tow sides can form image.In this class imaging device, major part is all provided with paper reverse rotary device, makes paper reversion after the one side of paper forms image, then the another side imaging to paper.
Patent US6722648 has disclosed a kind of reversal control device, and as depicted in figs. 1 and 2, this reversal control device 52 comprises: power input device 55, power take-off implement 56, intermediate transfer device 57, transfer device 58.Described transfer device comprises cam mechanism 69 and screw actuator 81.Wherein, the power that power input device 55 transmission motor (not shown)s provide rotates towards a fixed-direction.When screw actuator 81 is during respectively in power-off and "on" position, as depicted in figs. 1 and 2, power take-off implement 55 output and in the counterclockwise direction outputting power along clockwise direction respectively, controls thereby realize reversion.
But there is a defect in above-mentioned reversal control device,, when reversion control unit is during in inverted status, for triggering the screw actuator of reversion, need the state in energising always, be generally greater than 1 second current"on"time.Therefore,, when imaging device is when carrying out duplex printing, increased the power consumption of imaging device.
Summary of the invention
For solving the existing problem of imaging device of the prior art, an object of the present invention is to provide a kind of novel reversal control device, make when carrying out reverse turn operation trigger mechanism without always in "on" position, thereby reduce power consumption.Another object of the present invention is to provide a kind of imaging device, and it comprises that above-mentioned reversal control device is to control forward and reverse rotation of reverse roll, to the pro and con of imaging media is processed.Another object of the present invention is to provide a kind of method of controlling forward and reverse rotation of the reverse rollers in imaging device.
According to a first aspect of the invention, provide a kind of reversal control device, having comprised: input transmission mechanism, for accepting propulsive effort from propulsion source; Intermediate transfer mechanism, for being optionally delivered to output transmission mechanism by propulsive effort from input transmission mechanism along first direction or contrary second direction; Switching mechanism, for make intermediate transfer mechanism kinematic to primary importance with along first direction driver output transmission mechanism, or move to the second place with along second direction driver output transmission mechanism.Wherein, described switching mechanism comprises: cam mechanism, it comprises cam member, and this cam member at least has circumferential spaced apart the having toothed portion and without toothed portion, mesh thereby can make cam mechanism at least form twice engagement and depart from input transmission mechanism in one turns in edge; Link gear, Qi Yu intermediate transfer mechanism is associated with cam mechanism homogeneous phase, and meshes Shi Shi intermediate transfer mechanism respectively in primary importance and the second place in cam mechanism and twice disengaging of input transmission mechanism; And trigger mechanism, for controlling cam mechanism, mesh with the batch (-type) of input transmission mechanism, this trigger mechanism comprises with the clutch part of stop part and acts on the bias piece on cam mechanism, stop part can be in forming with cam mechanism the stop dog position engaging, thereby the application force that overcomes bias piece makes cam mechanism keep static and depart from engagement with input transmission mechanism, when clutch part is actuated stop part while leaving stop dog position, cam mechanism rotates to form engagement with input transmission mechanism, until stop part enters engage position again under the effect of bias piece.
In one embodiment, link gear comprises and the coaxial mounted swing span of input transmission mechanism.Swing span comprises three arms, and wherein the first Bei Yu intermediate transfer mechanism is connected.Cam mechanism also comprises the first fastener, and it engages with the second arm and the 3rd arm of swing span respectively when twice disengaging of described cam mechanism and input transmission mechanism engagement, thereby makes intermediate transfer mechanism respectively in primary importance and the second place.
In one embodiment, clutch part is some dynamic formula magnetic clutch, and it actuates stop part and leaves stop dog position when energising.
In a specific embodiment, arrive in the scope of 350ms the current"on"time of magnetic clutch 0.
In one embodiment, cam member has along circumferentially symmetrical first having toothed portion, first to have toothed portion, second without toothed portion without toothed portion, second.Therefore, Yi Zhuan cam mechanism forms twice engagement and twice disengaging engagement with input transmission mechanism.
In a specific embodiment, cam mechanism comprises for forming with stop part the counterpart engaging.Counterpart comprises circumferentially two parts spaced apart, and each several part includes one section of smooth curve section and a sudden change section, and described sudden change section has formed the stop dog position engaging with described stop part.Above-mentioned circumferentially spaced apart be preferably circumferentially symmetrical.
In a specific embodiment, sudden change section is step, and stop part is L shaped, and is formed and engage with step surface by bending section.
In addition, cam mechanism also comprises the second fastener, and wherein bias piece rotates cam mechanism by acting on the second fastener.
In one embodiment, reversal control device comprises a sensing device, for detection of reversal control device mode of operation.
According to a second aspect of the invention, provide a kind of imaging device that comprises reversal control device as above, wherein, the output transmission mechanism of this reversal control device is for driving the reverse roll of imaging device.
According to a third aspect of the invention we, provide a kind of method of controlling the rotation direction of the reverse roll in above-mentioned imaging device, having comprised: made propulsion source drive input transmission mechanism; Utilize the clutch part of switching mechanism to actuate stop part, thereby make intermediate transfer mechanism in primary importance or the second place, with along first direction or second direction driver output transmission mechanism, make thus reverse roll along rotating one of in two contrary directions.Wherein, the clutch part of switching mechanism only continues one section to actuating of stop part is enough to make stop part to leave the time of stop dog position.
The present invention has advantages of as follows with respect to prior art.According to the present invention, after stop part leaves stop dog position, cam mechanism starts to rotate, and afterwards, the step that intermediate transfer mechanism changes between primary importance and the second place will automatically be carried out.That is to say, clutch part need only be actuated so that stop part leaves stop dog position by a dynamic formula, and needn't as in prior art, during whole reversion, all must remain under "on" position.Therefore, can reduce significantly the power consumption of imaging device.
Accompanying drawing explanation
Based on accompanying drawing and by example, explain structure of the present invention and control step below, wherein:
Fig. 1 is the structural representation when the forward state according to the reversal control device of prior art;
Fig. 2 is the structural representation when the inverted status according to the reversal control device of prior art;
Fig. 3 is the structure cutaway view that includes the imaging device of reversal control device;
Fig. 4 has shown the state when the primary importance according to the intermediate transfer mechanism of reversal control device of the present invention;
Fig. 5 has shown the state when the second place according to the intermediate transfer mechanism of reversal control device of the present invention;
Fig. 6 has shown according to the structure of the cam mechanism in reversal control device of the present invention.
The specific embodiment
To describe detailed structure of the present invention below.For simplicity, the present invention is described in detail in connection with should be used in imaging device, especially chopping machine.Yet be appreciated that reversal control device of the present invention also may be used on anyly need to carrying out to rotation direction the occasion of forward and reverse control.
In addition, term " forward " or " first direction " refer to along clockwise direction in the present invention, and term " oppositely " or " second direction " refer in the counterclockwise direction.Yet easily understand, the meaning of above-mentioned term also can be exchanged, and this is within the scope of the present invention equally.
Fig. 3 has shown a kind of section-drawing of typical imaging device.In this illustrated embodiment, imaging device is chopping machine.Bottom at the body 1 of imaging device is provided with paper supply unit 2, and it is conveyance of sheets seriatim.The paper sheet delivery that supply unit 3 provides paper supply unit 2 is to transfer printing unit 5.The carbon dust image being formed on photosensitive drums (not shown) because of laser cell 11 exposures in powder box 4 is transferred on paper after transfer printing unit 5, then makes carbon dust image melt and anchor on paper through fixation unit 6.Then, by deliverying unit 8, paper is discharged on carton 10.When needs carry out duplex printing, paper is transported to deliverying unit 8 after by photographic fixing, and when paper end is completely between the conveying roller 12 and 13 of reversion directed element 7 while discharging, paper end is because the rigidity of paper is aligned between conveying roller 13 and 14.Now reverse roll 15 start reversion, by paper sheet delivery to reversion unit 9 in.By reversion unit 9, paper is transported to transfer printing unit 5 again, thereby the another side of paper is carried out to imaging operation.Finally, deliverying unit 8 is discharged to the two-sided paper that is all imaged (printing) in carton 10.Here, reverse roll 15 is controlled by reversal control device, and realization rotates and reverse.
Below introduce according to the structure of reversal control device 20 of the present invention in detail.
As shown in Figure 4, reversal control device 20 comprises: as the driving gear 21 of input transmission mechanism, as the driven gear 22 of output transmission mechanism, as the center tooth wheels 23 of intermediate transfer mechanism with as the converting unit 24 of switching mechanism.
The motor (not shown) being arranged in image forming apparatus body 1 is delivered to driving gear 21 by propulsive effort, makes driving gear 21 keep direction A as shown in the figure to rotate.Driven gear 22 is arranged on driving gear 21 tops, for power being sent to the driven wheel 16 with the coaxial setting of reverse roll 15, so that 15 rotations of final driver inversion roller.Center tooth wheels 23 are arranged between driving gear 21 and driven gear 22, for propulsive effort is sent to driven gear 22 from driving gear 21.Described center tooth wheels 23 comprise that be fixedly installed and idle gear 25 and idle gears 27 driven gear 22 engagement, with the idle gear 28 of idle gear 27 engagement, and on the one hand with driving gear 21 remain engagement, on the other hand optionally with idle gear 25 or idle gear 28 gears in meshs 26.When gear 26 is in as shown in Figure 4 during with primary importance idle gear 25 engagement, driven gear 22 by driven along first direction rotation, thereby drive driven wheel 16 to rotate counterclockwise, and then driver inversion roller 15.And when gear 26 is in as shown in Figure 5 during with second place idle gear 28 engagement, driven gear 22 by driven along second direction rotation, thereby drive driven wheel 16 to clockwise rotate, and then driver inversion roller 15.Gear 26 can be for example pinion gear.
Above structure and design are all that those skilled in the art is known, therefore specifically for the purpose of saving length are described in this and omit.
According to the invention provides converting unit 24, for controlling pinion gear 26, mesh with idle gear 25 or idle gear 28 selectively, to realize driven gear 22, rotate with anti-clockwise along clockwise direction respectively.Described converting unit 24 comprises link gear, cam mechanism and trigger mechanism.In the embodiment shown, link gear is swing span 29, and it is arranged on the axle of driving gear 21 rotationally, and has three extension arm 29a, 29b and 29c.Pinion gear 26 is arranged on extension arm in a side, as on the end of arm 29a.
Cam mechanism comprises cam member 30.As shown in Figure 6, cam member 30 has the 30a of tooth portion, the first anodontia 30b of portion, second to have the 30c of tooth portion and the second anodontia 30d of portion being upwards intervally distributed with first week.Cam mechanism is provided with disc 32 in a side of cam member 30, in the week of disc 32, is upwards intervally distributed with two mesh bulge 32a and 32b.Cam mechanism is provided with outward extending projection 34 centered by the axle of cam member 30 on the opposite side of cam member, and it can engage with another two extension arm 29b and the 29c formation of swing span 29.In the present embodiment, spaced apart be preferably symmetrical spaced apart.
According to the present invention, trigger mechanism comprises clutch part and bias piece.In the embodiment shown, bias piece is spring 40, and it can act on the protruding 33a or 33b (will be explained in greater detail below) of cam mechanism.The form of clutch part is magnetic clutch 31.As shown in Figure 4, magnetic clutch 31 mainly comprises housing 36, spring 37, stopper arms 38 and magnetic patch 39.Stopper arms 38 is for example configured to L shaped.When magnetic clutch 31 no power, it is that bending part 38a engages with one of mesh bulge 32a or 32b that spring 37 makes the end of stopper arms 38.And when magnetic clutch 31 energising, the attractive force of magnetic patch 39 overcomes the effect of spring 37, make the bending part 38a disengaging of stopper arms 38 and engaging of mesh bulge 32a or 32b.
Cam member 30 also comprises protruding 33a and the 33b extending to external symmetry centered by the axle of cam member 30.Projection 33a and 33b be in forming the position of interfering with stopper arms 38, for example with respect to cam member 30 in a side contrary with stopper arms 38, or with stopper arms 38 in the same side but spatially stagger.
Fig. 4 has shown the state of intermediate transfer mechanism when primary importance.As shown in the figure, the state of magnetic clutch 31 in not switching on, makes bending part 38a and the mesh bulge 32a engagement of stopper arms 38, in stop position.40 pairs of mutual balances of cam mechanism applied force of stopper arms 38 and spring, thus make cam mechanism keep static.In this case, the first anodontia 30b of portion of cam member 30 is relative with driving gear 21, and projection 34 engages with extension arm 29b, makes to be arranged on pinion gear 26 on extension arm 29a in the primary importance with idle gear 25 engagements.Now, propulsive effort is transferred to driven wheel 16 through pinion gear 26, idle gear 25 and driven gear 22 by propulsive effort from driving gear 21, makes driven wheel 16 keep direction B as shown in the figure to rotate.Reverse roll 15, by drive wheel 16 driven rotary, is discharged to paper in carton 10.
When magnetic clutch 31 energising, magnetic patch 39 produces magnetic force, overcomes thus the pulling force of spring 37 and makes stopper arms 38 depart from stop positions, discharged and mesh bulge 32a between formed backstop action.In this case, due to the effect of 40 couples of protruding 33a of spring or 33b, cam member 39 starts to rotate, and realizing second has the engagement of the 30c of tooth portion and driving gear 21, thereby automatically makes cam mechanism 30 be rotated further.In this rotation process, disc 32 and projection 34 also together with rotation.When turning to the bending part 38a of stopper arms 38 and mesh bulge 32b on disc 32 engages, spring 40 engages with protruding 33b, and the second anodontia 30c of portion of cam mechanism 30 is relative with driving gear 21.Therefore, stopper arms 38 and spring 40 be separately to the mutual balance of cam mechanism applied force, thereby make cam mechanism again keep static.Now, projection 34 by the extension arm 29b with swing span inconsistent become with extension arm 29c inconsistent, swing span 29 is clockwise rotated, cause pinion gear 26 by original be meshed with idle gear 25 to become with idle gear 28 be meshed, intermediate transfer mechanism is in the second place.
Fig. 5 has shown the state of intermediate transfer mechanism when the second place.Now, propulsive effort is delivered to driven gear 22 from driving gear 21 through pinion gear 26, idle gear 28 and idle gear 27, makes driven wheel keep direction C as shown in the figure to rotate, and this direction C is contrary with above-mentioned direction B.Like this, reverse roll 15 is driven by drive wheel 16, along the direction rotation with contrary shown in Fig. 4, paper reverse is forwarded in reversion unit 9.
Preferably, with swing span below certain intervals place be provided with sensor 41.When reversal control device is when inverted status (being that intermediate transfer mechanism is in the second place), the extension arm 29c of swing span 29 swings in sensor 41, thereby is detected by sensor 41.Sensor 41 sends an inverted status signal thus to system.
Can see, by adopting according to reversal control device of the present invention, once magnetic clutch is switched on to actuate stop part and is left stop dog position, cam mechanism just can automatically rotate, make stop part can automatically again enter stop dog position, and realize the conversion of intermediate transfer mechanism between primary importance and the second place.Therefore, magnetic clutch can adopt a dynamic formula channel electric controlled mode processed, need to be under whole inverted status retainer belt electricity condition, therefore can significantly reduce the power consumption of imaging device.
The stopper arms 38 of magnetic clutch 31 is disengaged position after magnetic clutch 31 energisings, and cam member 30 is being driven and rotating by driving gear 21.Before cam member 30 rotates 180 °, stopper arms 38 need to be got back to another one mesh bulge on engage position and cam member 31 and mesh reversion control, so current"on"time can not be long.In the present embodiment, 0, arrive in the scope of 350ms the current"on"time of magnetic clutch 31.
Finally it should be noted that above embodiment, only in order to technical scheme of the present invention to be described, is not intended to limit.Although the present invention is had been described in detail with reference to previous embodiment, those of ordinary skill in the art should be appreciated that its technical scheme that still can record aforementioned each embodiment modifies, or its middle part technical characterictic is equal to replacement.And these modifications or replacement do not make the essence of appropriate technical solution depart from the scope of the technical scheme of various embodiments of the present invention.
Claims (12)
1. a reversal control device, comprising:
Input transmission mechanism, for accepting propulsive effort from propulsion source;
Intermediate transfer mechanism, for being optionally delivered to output transmission mechanism by propulsive effort from input transmission mechanism along first direction or contrary second direction;
Switching mechanism, for make intermediate transfer mechanism kinematic to primary importance with along first direction driver output transmission mechanism, or move to the second place with along second direction driver output transmission mechanism,
Wherein, described switching mechanism comprises:
Cam mechanism, it comprises cam member, described cam member at least has circumferential spaced apart the having toothed portion and without toothed portion, mesh thereby can make cam mechanism at least form twice engagement and depart from input transmission mechanism in one turns in edge,
Link gear, it is associated with described intermediate transfer mechanism and cam mechanism homogeneous phase, and makes described intermediate transfer mechanism respectively in primary importance and the second place in twice disengaging when engagement of described cam mechanism and input transmission mechanism,
Trigger mechanism, for controlling cam mechanism, mesh with the batch (-type) of input transmission mechanism, described trigger mechanism comprises with the clutch part of a stop part and acts on the bias piece on cam mechanism, described stop part can be in forming with described cam mechanism the stop dog position engaging, thereby the application force that overcomes bias piece makes cam mechanism keep static and depart from engagement with input transmission mechanism, when described clutch part is actuated stop part while leaving stop dog position, described cam mechanism rotates to form engagement with input transmission mechanism under the effect of bias piece, until stop part enters engage position again,
Described cam mechanism comprises that described counterpart comprises circumferentially two parts spaced apart for forming with described stop part the counterpart engaging, and each several part includes a sudden change section, and described sudden change section has formed the stop dog position engaging with described stop part.
2. reversal control device according to claim 1, is characterized in that,
Described link gear comprises and input transmission mechanism coaxial mounted swing span, and described swing span comprises three arms, and wherein the first arm is connected with described intermediate transfer mechanism,
Described cam mechanism also comprises the first fastener, described the first fastener engages with the second arm and the 3rd arm of described swing span respectively when twice disengaging of described cam mechanism and input transmission mechanism engagement, thereby makes intermediate transfer mechanism respectively in primary importance and the second place.
3. reversal control device according to claim 1 and 2, is characterized in that, described clutch part is some dynamic formula magnetic clutch, and described magnetic clutch is actuated stop part and left stop dog position when energising.
4. reversal control device according to claim 3, is characterized in that, arrive in the scope of 350ms the current"on"time of described magnetic clutch 0.
5. reversal control device according to claim 4, it is characterized in that, described cam member has along circumferentially symmetrical first having toothed portion, first to have toothed portion, second without toothed portion without toothed portion, second, thereby can in one turns, make cam mechanism and input transmission mechanism form twice engagement and twice disengaging engagement.
6. reversal control device according to claim 1, is characterized in that, described each several part all also comprises one section of smooth curve section, and described smooth curve section is connected with corresponding sudden change section.
7. reversal control device according to claim 1, is characterized in that, described sudden change section is step, and described stop part is L shaped, and is formed and engage with step surface by bending section.
8. reversal control device according to claim 1, is characterized in that, described cam mechanism also comprises the second fastener, and described bias piece rotates described cam mechanism by acting on the second fastener.
9. reversal control device according to claim 2, is characterized in that, described reversal control device comprises a sensing device, for detection of reversal control device mode of operation.
10. reversal control device according to claim 1, is characterized in that, described circumferentially spaced apart for circumferentially symmetrical.
11. 1 kinds comprise according to the imaging device of the reversal control device described in any one in claim 1 to 10, it is characterized in that, the output transmission mechanism of described reversal control device is for driving the reverse roll of described imaging device.
12. 1 kinds of methods of controlling the rotation direction of the reverse roll in imaging device according to claim 11, comprising:
Make described propulsion source drive described input transmission mechanism;
Utilize the clutch part of described switching mechanism to actuate described stop part, thereby make described intermediate transfer mechanism in primary importance or the second place, with along first direction or second direction driver output transmission mechanism, make thus reverse roll along rotating one of in two contrary directions
Wherein, the clutch part of described switching mechanism only continues one section to actuating of stop part is enough to make stop part to leave the time of stop dog position.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210019381.9A CN102556743B (en) | 2012-01-19 | 2012-01-19 | Reversal control device, imaging equipment and operating method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210019381.9A CN102556743B (en) | 2012-01-19 | 2012-01-19 | Reversal control device, imaging equipment and operating method |
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| CN102556743A CN102556743A (en) | 2012-07-11 |
| CN102556743B true CN102556743B (en) | 2014-11-12 |
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| CN105045062B (en) * | 2015-08-25 | 2018-03-23 | 珠海奔图电子有限公司 | Drive system and image processing system |
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| JPH1087187A (en) * | 1996-09-09 | 1998-04-07 | Minolta Co Ltd | Document carrier device |
| CN1211509A (en) * | 1997-08-30 | 1999-03-24 | 三星电子株式会社 | Sheet feeding device of laser beam printer |
| US5887868A (en) * | 1993-12-09 | 1999-03-30 | Xerox Corporation | Drive system for rollers |
| JP2001151370A (en) * | 1999-09-27 | 2001-06-05 | Hewlett Packard Co <Hp> | Method and device for automatically feeding document |
| CN1410333A (en) * | 2001-09-21 | 2003-04-16 | 株式会社东芝 | Inversion set and inversion method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP3763253B2 (en) * | 2000-09-29 | 2006-04-05 | ブラザー工業株式会社 | Image forming apparatus |
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- 2012-01-19 CN CN201210019381.9A patent/CN102556743B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US5887868A (en) * | 1993-12-09 | 1999-03-30 | Xerox Corporation | Drive system for rollers |
| JPH1087187A (en) * | 1996-09-09 | 1998-04-07 | Minolta Co Ltd | Document carrier device |
| CN1211509A (en) * | 1997-08-30 | 1999-03-24 | 三星电子株式会社 | Sheet feeding device of laser beam printer |
| JP2001151370A (en) * | 1999-09-27 | 2001-06-05 | Hewlett Packard Co <Hp> | Method and device for automatically feeding document |
| CN1410333A (en) * | 2001-09-21 | 2003-04-16 | 株式会社东芝 | Inversion set and inversion method |
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Effective date of registration: 20190426 Address after: 519060 Central District A, Building 3, 01, 3883 Zhuhai Avenue, Zhuhai City, Guangdong Province Patentee after: ZHUHAI PANTUM ELECTRONICS Co.,Ltd. Address before: 519075 No. 63 Mingzhu North Road, Xiangzhou District, Zhuhai City, Guangdong Province Patentee before: Zhuhai Saine Printing Technology Co.,Ltd. |
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