CN106183468A - Image processing system - Google Patents
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- CN106183468A CN106183468A CN201510408073.9A CN201510408073A CN106183468A CN 106183468 A CN106183468 A CN 106183468A CN 201510408073 A CN201510408073 A CN 201510408073A CN 106183468 A CN106183468 A CN 106183468A
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- feed roller
- paper feed
- roller
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Abstract
The present invention provides a kind of image processing system that paper can successfully be handed off to be located at the conveying roller of image forming part from the paper feed roller being located at paper setting unit.The paper feed roller (21) that the paper (S) being arranged at paper setting unit is sent is rotated together with wobble gear (28a).The center of rotation (O2) of wobble gear and paper feed roller by oscillating structural member (26) support, oscillating structural member with drive gear (25) center of rotation (O1) for prop up a spot wobble.When driving gear to rotate clockwise, moment (M1) acts on oscillating structural member, and paper feed roller is pressurized to paper, and paper is sent with the rotation of paper feed roller.When paper is carried with the conveying roller of image forming part, paper increases to speed (v2), and therefore, clockwise moment (Mb) acts on oscillating structural member, and the plus-pressure acting on paper from paper feed roller reduces.
Description
Technical field
The present invention relates to be handed off to conveying roller by the paper that paper feed roller is sent and carry out the printing of image
Image processing system, particularly relate to successfully to carry out paper from paper feed roller to conveying roller
The image processing system of handing-over.
Background technology
In image processing system, paper is sent from paper setting units such as paper feeding cassettes by paper feed roller,
This paper is handover to the conveying rollers such as the pressure roller being located at image forming part, at image forming part, with conveying
The transporting velocity of roller synchronously forms image on paper.But, in this kind of image processing system,
By highly difficult for the setting of paper timing when paper feed roller is handover to conveying roller, such as, there is following asking
Topic: due to the speed change of paper when paper feed roller departs from of the rearward end of paper that carried by conveying roller
Changing, the scale of the image occur band in the image being formed on paper, being formed on paper becomes
Move.
As the structure of solution the problems referred to above, the image processing system described in patent documentation 1 makes to send
The paper feed roller of paper is fast with the stop roller (resist roll) being used for being located at the conveying roller of image forming part
Speed rotates, and paper arrives after stopping roller, makes paper feed roller repeat with the dutycycle of regulation
Rotate and stop, thus, substantially the rotary speed of two rollers being set on an equal basis.
In image processing system described in patent documentation 2, configure tilted separator deck in paper setting unit,
Being separated by inclination, the paper of topmost is sent by paper feed roller, and paper is handover to be arranged in top
Conveying roller.In this paper supply way, according to the difference of the amount of the paper remaining in paper setting unit, logical
Cross the sending of paper that paper feed roller sends highly to change.Therefore, it is provided with the load to paper setting unit
The amount of putting carries out the sensor detected, according to by the mounting amount of the paper detected by sensor, it is possible to
Change the amount of feeding of the paper carried by conveying roller.
In image processing system described in patent documentation 3, paper feed roller be arranged over conveyer belt,
Between paper feed roller and conveyer belt, paper flexure is made to be formed ring-type.Ring-type by forming this, it is possible to absorb
The variation of the back tension of paper is acted on from paper feed roller.
Prior art literature
Patent documentation
Patent documentation 1: Japanese Unexamined Patent Publication 5-178502 publication
Patent documentation 2: Japanese Unexamined Patent Publication 2006-193306 publication
Patent documentation 3: Japanese Unexamined Patent Publication 2006-56612 publication
But, the image processing system described in patent documentation 1 needs and the rotary speed phase stopping roller
Ground should be adjusted the rotation of paper feed roller and the dutycycle of stopping, therefore, the driving of roller controls to become
Complicated.
Image processing system described in patent documentation 2 needs to detect the sensor of the mounting amount of paper,
And control the action of conveying roller based on sensor output, therefore, control action is the most complicated.
Image processing system described in patent documentation 3, between paper feed roller and conveyer belt, needs to be used for
Make paper bend and form ring-type space, therefore, larger-scale unit.Additionally, make paper bend also
Easily become the reason of paper blocking.
And, in the image processing system described in patent documentation 2 and patent documentation 3, paper feed roller and
Conveying roller is in the above-below direction separate configuration as the direction reported to the leadship after accomplishing a task with paper transport direction, therefore, and dress
Becoming large-sized of the above-below direction put, it is highly difficult for constituting slim image processing system.
Summary of the invention
The present invention is to solve the invention of above-mentioned conventional problem, and its purpose is particular in that provide a kind of nothing
The roller that need to carry out complexity drives control, it is possible to successfully carry out joining from paper feed roller to the paper of conveying roller
Image processing system.
The image processing system of the present invention, is provided with: paper setting unit, arranges the paper of more than 1；
Delivering mechanism portion, sends paper from above-mentioned paper setting unit；Image forming part, from above-mentioned paper
Image is formed on the paper that setting unit is sent；And conveying roller, give paper at above-mentioned image forming part
Carrying capacity, above-mentioned image processing system is characterised by,
Above-mentioned delivering mechanism portion has: drive gear；Oscillating structural member, with the rotation of above-mentioned driving gear
Center is that fulcrum swings；Wobble gear, is supported by above-mentioned oscillating structural member, and with above-mentioned driving
Gear engages；Paper feed roller, rotates together with and gives paper with above-mentioned wobble gear and send power；And it is negative
Carry and give component, between above-mentioned oscillating structural member and above-mentioned driving gear and above-mentioned oscillating structural member is with upper
At least one party stated between wobble gear gives load,
The transporting velocity giving paper from above-mentioned conveying roller is set to that ratio is from above-mentioned paper feed roller imparting paper
Rate of delivery is fast,
Give and connect the center of rotation of above-mentioned paper feed roller and the rotation of above-mentioned driving gear when power sent by paper
Turn the swing datum line L at center and by above-mentioned paper feed roller and the contact point of paper and to the paper side of sending
Obtuse angle is become to the tangent line H extended.
In the image processing system of the present invention, wobble gear and paper feed roller swing by oscillating structural member and swing,
Its swing pivot is positioned at the upstream side of paper sheet delivery compared with paper feed roller.At the paper sent with paper supply rod
Be handover to conveying roller, paper by the speed difference of 2 rollers when transport direction stretches, relative to
Oscillating structural member, with the moment in the oriented direction separated from paper of this power effect, can reduce paper feed roller and paper
Crimp force.Therefore, when paper leaves from paper feed roller, it is not likely to produce the velocity variations of paper.
The image processing system of the present invention preferably has constructed as below: at above-mentioned wobble gear with above-mentioned
Clutch mechanism it is provided with, until the paper sent by above-mentioned paper feed roller arrives above-mentioned conveying between paper feed roller
Till roller, transmit driving force from above-mentioned wobble gear to above-mentioned paper feed roller via above-mentioned clutch mechanism,
When paper is subject to the carrying capacity from above-mentioned conveying roller, send speed by above-mentioned transporting velocity with above-mentioned
The speed difference of degree, above-mentioned paper feed roller is not rotated by from the driving force of above-mentioned wobble gear.
Such as, in above-mentioned clutch mechanism, above-mentioned wobble gear and above-mentioned paper feed roller are with can be relative
The mode rotated is supported, and is provided with, in above-mentioned driving gear side, driving of extending parallel to rotation centerline
Dynamic teat, be provided with in above-mentioned paper feed roller side extend parallel to above-mentioned rotation centerline and with above-mentioned driving
The driven teat that teat is the most opposed.
In the structure being provided with clutch mechanism, after paper is handover to conveying roller, clutch mechanism
Carry out action with the speed difference of roller, paper feed roller can not constraint rotating freely through by wobble gear,
The transporting resistance giving paper from paper feed roller reduces.Additionally, dally at clutch mechanism and act on confession
When the rotary load of paper bowl reduces, the moment of the compression aspect of oscillating structural member also reduces, and composes from paper feed roller
The plus-pressure giving paper reduces.Additionally, after clutch mechanism dallies, due to paper feed roller and swing
Friction etc. between component, the rotation to paper feed roller there is also a little load.But, oscillating structural member
Swing pivot is configured at upstream side, therefore, when paper pulls out to transport direction, due to above-mentioned load,
The moment of the compression aspect of oscillating structural member reduces.In sum, after paper is handover to conveying roller,
The resistance being applied to paper from paper feed roller becomes minimum, is not likely to produce paper speed when paper feed roller leaves
Degree change.
The present invention preferably, clips the mobile route of the paper sent from above-mentioned paper setting unit, one
Side is configured with above-mentioned paper setting unit and above-mentioned conveying roller, is configured with above-mentioned paper feed roller at opposite side and sets
In the print-member of image forming part, a part for above-mentioned paper setting unit and the one of above-mentioned print-member
Part is overlapping on the direction orthogonal with above-mentioned mobile route.
By above-mentioned composition, it is possible to make image processing system thinning.
Additionally, such as, above-mentioned conveying roller is the pressure roller opposed with above-mentioned print-member.But, also may be used
To be that image forming part has the photosensitive drums transferring images on paper, conveying roller can also be with this sense
Light drum synchronously rotates.
Additionally, the present invention is preferably, above-mentioned paper feed roller stop during, above-mentioned driving gear to paper
Opening transport direction opposite side to rotate, paper feed roller separates with paper.
By above-mentioned composition, it is possible to preventing during work stops, paper feed roller is adhered to the printing of paper
Picture, or print picture be dirty due to paper feed roller.
Invention effect
In the present invention, paper feed roller is supported in oscillating structural member, and by its swing pivot compared with paper feed roller
It is arranged on conveying upstream side, therefore, after paper is handover to conveying roller, at paper with the speed of roller
Degree difference when transport direction stretches, have to oscillating structural member effect make that compressive load reduces towards moment,
The crimp force giving paper from paper feed roller reduces.It is therefore not necessary to carry out the control of complexity, at paper
Rearward end is when paper feed roller leaves, it is possible to prevent from producing extreme velocity variations at paper.
Accompanying drawing explanation
Fig. 1 is the top view of the image processing system of embodiments of the present invention.
Fig. 2 is the amplifier section top view that the part to Fig. 1 is indicated.
Fig. 3 is the part enlarged front view observing Fig. 2 from III direction.
Fig. 4 is to delete driving gear and the partial enlargement front view of wobble gear in figure 3.
Fig. 5 (A)～Fig. 5 (B) represents the action of clutch mechanism, is the V-V line along Fig. 2
Sectional view.
Fig. 6 (A)～Fig. 6 (C) is the action specification figure of the wobbling action representing paper feed roller.
Symbol description
1 image processing system
2 paper setting units
3 paper feeding cassettes
10 image forming parts
11 print-members
11a print head
12 conveying rollers
20 delivering mechanism portions
21 paper feed rollers
22 roll shafts
24 drive shafts
25 drive gear
26 oscillating structural members
26b swing arm
27 loads give component
28 swing rotary bodies
28a wobble gear
30 clutch mechanisms
31 drive teat
32 driven teats
40 Poewr transmission mechanisms
H tangent line
L swings datum line
S paper
V1 rate of delivery
V2 transporting velocity
Detailed description of the invention
Fig. 1 is the top view of image processing system 1.Paper setting unit 2 and figure in image processing system 1
As forming portion 10 is arranged, the least and thin.Delivering mechanism portion 20 overlaps and is formed in image
Portion 10.
As shown in Figure 3 and Figure 4, paper feeding cassette 3 is installed on paper setting unit 2.Inside at paper feeding cassette 3
(storage) is set and has the paper S of more than 1.It is provided with the paper in paper feeding cassette 3 in paper setting unit 2
Open the force application component 4 that S pushes to upward.In the example shown in Fig. 3 and Fig. 4, force application component 4 is
Leaf spring.Top before paper feeding cassette 3 is formed with paper supply slit 3a, the paper pushed to by force application component 4
Open the paper of topmost in S to be sent from paper supply slit 3a.
In image forming part 10, upside is provided with print-member 11, and downside is provided with conveying roller 12.Printing
Component 11 has print head 11a and supports the supporting member 11b of this print head 11a.Supporting member 11b
Inside it is accommodated with the circuit substrate etc. for making print head 11a action.Additionally, be that heat turns at print head 11a
In the case of print head, in supporting member 11b, it is accommodated with the ink ribbon etc. corresponding with various process colors.
Conveying roller 12 is pressure roller.Print head 11a passes through the pressing element such as leaf spring or compression helical spring,
Suppressed in the roller surface of the conveying roller 12 as pressure roller.
Conveying roller 12 is formed by synthetic rubber elastomeric material, and is fixed in the roller as metal shaft
The peripheral part of axle 13.The each component constituting image processing system 1 is accommodated in not shown metab
In.2 support side plate 5a, 5b of metab shown in Fig. 1.The roll shaft 13 of conveying roller 12
Both ends are rotatably supported in support side plate 5a and support side plate 5b.As it is shown in figure 1, propping up
The outside of support side plate 5a, roller drives gear 14 to be fixed on above-mentioned roll shaft 13.
As shown in Figure 1, Figure 2, Figure 3 shows, it is provided with above covering paper feeding cassette 3 in paper setting unit 2
Cover plate 6.It is formed with peristome 6a at cover plate 6.In delivering mechanism portion 20, paper feed roller 21 is configured at lid
On plate 6, paper feed roller 21 is positioned at the inside of peristome 6a, and roller surface ratio cover plate 6 is prominent to lower side.
As shown in Figure 4, the paper S in paper feeding cassette 3 is brought to by force application component 4, the paper S of topmost
It is crimped on the roller surface of paper feed roller 21.
Paper feed roller 21 is formed by synthetic rubber elastomeric material, and is fixed in the roll shaft as metal shaft
The periphery of 22.
As in figure 2 it is shown, be fixed on bearing portion 23 at cover plate 6, the end of a side of drive shaft 24
Portion 24a is rotatably supported in this bearing portion 23.The end 24b of the opposing party of drive shaft 24 is revolved
Turn and be supported in support side plate 5a shown in Fig. 1 freely.In the inner side of support side plate 5a, drive gear
25 are fixed on drive shaft 24.
It is configured with oscillating structural member 26 between bearing portion 23 and driving gear 25.Oscillating structural member 26 is by overlapping
Cylinder 26a and swing arm 26b is integrated and constitutes, and drive shaft 24 is inserted through through the most slottingly
Sleeve 26a and swing arm 26b and the inserting hole that formed.Drive shaft 24 and the driving gear of its one
25 and oscillating structural member 26 separate and rotatable.As in figure 2 it is shown, load gives component 27
It is situated between and is to drive between gear 25 and swing arm 26b.It is compression helical spring that load gives component 27,
Give component 27 by this load, give load torque between gear 25 and oscillating structural member 26 to driving.
It addition, it can also be rubber elastomeric material that load gives component 27.
As shown in Figure 4, the base portion of swing arm 26b is fixed on above-mentioned sleeve 26a, swing arm 26b's
Front portion has slip retaining hole 26c.The rotary shaft portion 28b of swing rotary body 28 rotatably keeps
In this slip retaining hole 26c.As in figure 2 it is shown, swing rotary body 28 is by wobble gear 28a and upper
State rotary shaft portion 28b formation integrally to form.At the central part of rotary shaft portion 28b, axle supported hole 28d passes through
Leading to and formed, the one end 22a of the roll shaft 22 supporting paper feed roller 21 is rotatably inserted through axle and supports
Hole 28d.
In delivering mechanism portion 20, oscillating structural member 26 is relative to the driving rotated integrally with driving gear 25
Axle 24 is rotatable.Additionally, relative to the swing arm 26b of oscillating structural member 26, wobble gear 28a
Being rotatable with rotary shaft portion 28b, relative to rotary shaft portion 28b, roll shaft 22 is rotatable
's.And, drive gear 25 and wobble gear 28a to engage all the time.
Support the one end 22a of roll shaft 22 of paper feed roller 21 and be supported on swing arm 26b, and along with
The wobbling action of oscillating structural member 26, puts along the circular arc rail centered by the axle center O1 of drive shaft 24
Move freely.The other end 22b of the roll shaft 22 shown in Fig. 1 is supported on support side plate 5b.This supports
Structure can be to form elongated hole in support side plate 5b, and when roll shaft 22 swings, the other end 22b can
Swing in this elongated hole, it is also possible to be that the mechanism identical with oscillating structural member 26 is set in support side plate 5b.
Or, it is also possible to it is that the other end 22b of roll shaft 22 is the most rotatably supported on support side plate 5b,
When at one end portion 22a carries out lifting action along with the wobbling action of oscillating structural member 26, roll shaft 22 does
Go out and tilt such action with the other end 22b for fulcrum.
It is between roll shaft 22 and swing rotary body 28 as it is shown in figure 1, clutch mechanism 30 is situated between.
At clutch mechanism 30, the driving teat 31 1 extended in parallel with the rotation centerline of roll shaft 22
It is formed at the rotary shaft portion 28b of driving rotating bodies 28 body.It is fixed with axle sleeve 33, with upper at roll shaft 22
State the driven teat 32 that rotation centerline extends in parallel and be integrally formed in axle sleeve 33.Drive teat 31
With driven protuberance 32 in the direction of rotation of roll shaft 22 opposed.
As it is shown in figure 1, the sidepiece a side of image processing system 1 is provided with Poewr transmission mechanism 40.
It is fixed with motor 41 in support side plate 5a of the side being formed at metab.The rotation of motor 41
Little gear 42 it is fixed with in rotating shaft.The outside of support side plate 5a is provided with reduction gearing row 43, little gear
The revolving force of 42 is decelerated by reduction gearing row 43, and is passed to roller driving gear 14.Pass through
Roller drives gear 14, and the roll shaft 13 supporting conveying roller 12 is driven in rotation.
As it is shown in figure 1, be fixed with return gear 44 on the inner side of support side plate 5a, roll shaft 13.
The inner side of support side plate 5a is provided with transmission gear row 45, and the revolving force of return gear 44 is by transmission tooth
Wheel row 45 are passed to be located at the above-mentioned driving gear 25 in delivering mechanism portion 20.Then, gear is driven
The revolving force of 25 is endowed wobble gear 28a, makes wobble gear 28a and supports the roller of paper feed roller 21
Axle 22 rotates.
Transmitted by the gear of the gear reduction ratio of above-mentioned first reduction gearing row 43 and transmission gear row 45
Ratio, determines roll shaft 13 and the rotating speed of roll shaft 22, so that give the conveying speed of paper S from conveying roller 12
The rate of delivery that degree becomes than giving paper S from paper feed roller 21 is fast.
The surface of paper feed roller 21 and the abutment of the paper S of topmost is passed through and at paper shown in Fig. 3
The tangent line H that the downstream of the transport direction of S extends.This tangent line H is cutting of the section circle of paper feed roller 21
Line.Mobile route when paper S is sent when paper feed roller 21 rotates is almost consistent with tangent line H.
Paper feed roller 21 shown in Fig. 3 with during paper S contact, be connected wobble gear 28a and paper feed roller
The swing datum line L of the center of rotation O2 of the 21 and center of rotation O1 driving gear 25, and in the same manner
When paper feed roller 21 and paper S contact be shown, by above-mentioned center of rotation O2 and with above-mentioned tangent line H
The benchmark vertical line V that (mobile route) meets at right angle.
The center of rotation O1 driving gear 25 needs to be positioned at paper transport direction relative to benchmark vertical line V
Upstream side.The above-mentioned tangent line H that i.e., downstream side extends and swing datum line L angulation α
For obtuse angle (＞ 90 degree), swing datum line L formed counterclockwise relative to benchmark vertical line V
Angle beta is the angle more than 0 degree.It addition, in order to not make the oscillatory forces by oscillating structural member 26 to supply
The plus-pressure that paper bowl 21 presses on paper S is excessive, or in order to image processing system 1 is constituted slim,
Optimized angle β is more than 45 degree and less than 90 degree.
If as it is shown on figure 3, on the basis of the tangent line H of the mobile route representing paper, then print-member
11 and paper feed roller 21 relative to tangent line H be configured in upside, paper setting unit 2 and conveying roller 12 phase
Downside is configured in for above-mentioned tangent line H.In this arrangement, it is possible to paper will be arranged at and arrange
The anterior 3b of the paper feeding cassette 3 in portion 2 is configured at the region under print-member 11, therefore, it is possible to shorten
The length dimension of the left and right directions of image processing system 1.
It follows that the action to image processing system 1 is illustrated.
When starting to the image formation action of paper S, the motor 41 of Poewr transmission mechanism 40 starts,
The revolving force of little gear 42 is passed to roller via reduction gearing row 43 and drives gear 14, and roller drives tooth
Wheel 14 and roll shaft 13 and conveying roller 12 are driven in rotation the most counterclockwise.
The revolving force of roll shaft 13 is passed to drive gear 25 through transmission gear row 45 from return gear 44.Enter
And, drive the revolving force of gear 25 to be passed to wobble gear 28a, wobble gear 28a is to counterclockwise
Direction is driven in rotation.
As shown in Figure 3 and Figure 4, in paper feeding cassette 3, paper S is picked up by force application component 4.As
Shown in Fig. 6 (A), when driving gear 25 to rotate clockwise, wobble gear 28a is to the inverse time
Pin direction rotates.Drive and give component 27 imparting rotation by load between gear 25 and oscillating structural member 26
Turning load, therefore, clockwise moment M1 based on above-mentioned rotary load acts on oscillating structural member
26, by this moment M1, paper feed roller 21 is crimped on the paper S of topmost.
As shown in Fig. 5 (A), at clutch mechanism 30, rotating torques T1 from wobble gear 28a
The driving teat 31 rotated the most counterclockwise is transferred to driven teat 32, roll shaft 22 and paper supply
Roller 21 is driven in rotation the most counterclockwise with driven protuberance 32.By this revolving force, it is positioned at confession
The paper S of the topmost of carton 3 is sent with the rate of delivery v1 of regulation, and paper S is from paper feeding cassette 3
Slit 3a out, along the mobile route of tangentially H, be sent to image forming part 10.
As shown in Fig. 6 (A), the paper S being sent with the revolving force of paper feed roller 21, by with position
The frictional force between paper S under it etc. and be endowed moving resistance F1, therefore, by above-mentioned movement
Load torque Ta that opposing F1 produces acts on the paper feed roller 21 rotated counterclockwise.Driving
When gear 25 rotates clockwise, above-mentioned load torque Ta is as making wobble gear 28a
Moment Ma of planetary motion plays a role clockwise.Therefore, paper feed roller 21 is by moment M1
+ Ma is pressed into paper S, and paper feed roller 21 uprises with the crimp force of paper S.
In image production part 10, print head 11a is crimped on the outer peripheral face of conveying roller 12, therefore,
When arriving the pressure contact portion of conveying roller 12 and print head 11a in the leading section of paper S, the front end of paper S
Portion is clamped by conveying roller 12 and print head 11a, and paper S is carried by the revolving force of conveying roller 12.
When being subject to the carrying capacity from conveying roller 12 in the front portion of paper S, the rear portion of this paper S is still
It is crimped on the roll surface of paper feed roller 21.As it has been described above, give the transporting velocity of paper S from conveying roller 12
V2 is set as faster than the rate of delivery v1 of the paper produced by paper feed roller 21.Therefore, at paper S
After being clamped by conveying roller 12 and print head 11a, paper S is carried to transporting velocity v2 by speedup.
This transporting velocity v2 becomes print speed printing speed, by print head 11a, in the print of the upside towards paper S
Picture Sa processed forms image.
When paper S is handover to conveying roller 12, paper feed roller 21 is moved with transporting velocity v2
Paper S stretching, to start counterclockwise to rotate than angular velocity fast when individually sending paper S.
On the other hand, the rotating speed driving gear 25 and wobble gear 28a is constant.Therefore, at clutch mechanism
30, as shown in Fig. 5 (B), the driven teat 32 rotated together with paper feed roller 21 from wobble gear
The driving teat 31 that 28a rotates together with separates, and driven teat 32 is relative to driving teat 31 with φ's
Rail rotates the most counterclockwise.Now, driven teat 32 is relative to the phase driving teat 31
Angular velocity is equivalent to the difference of the angular velocity of paper feed roller 21 and the angular velocity of wobble gear 28a.
When setting paper S and being handover to conveying roller 12, if driven teat 32 is positioned at shown in Fig. 5 (B)
Position (i), then after, paper feed roller 21 rotates faster than wobble gear 28a, after paper S
End is after paper feed roller 21 separates, and the most driven teat 32 is relative to driving the relative of teat 31
Position becomes the position shown in (ii).
By the action of above-mentioned clutch mechanism 30, after paper S is handover to conveying roller 12, tightly
Then terminating from wobble gear 28a to the transmission of the power of paper feed roller 21, paper feed roller 21 starts comparison freely
Ground rotates, and therefore, the resistance giving paper S from paper feed roller 21 reduces.
And, at the end of the power transmission carried out by clutch mechanism 30, as shown in Fig. 6 (A),
Load torque Ta acting on paper feed roller 21 and wobble gear 28a reduces, by this load torque Ta,
Moment Ma clockwise acting on oscillating structural member 26 also diminishes.Thus, such as Fig. 6 (B)
Shown in, will make moment that oscillating structural member 26 rotates clockwise from M1+Ma reduce to based on
Load gives moment M1 of the load of component 27, and the power that paper S is pressurizeed by paper feed roller 21 reduces.
Additionally, by clutch mechanism 30, the power between paper feed roller 21 and wobble gear 28a is cut
After Duan, by the frictional force etc. between rotary shaft portion 28b and swing arm 26b, a little rotary load is also
Roll shaft 22 and swing rotary body 28 can be acted on.As shown in Fig. 6 (B), the swing of oscillating structural member 26
Fulcrum is positioned at the upstream side of transport direction compared with the center of rotation O2 of paper feed roller 21, therefore, at paper
When S is drawn out with transporting velocity v2, by above-mentioned rotary load, make oscillating structural member 26 to counterclockwise
Moment Mb that direction rotates plays a role, and the plus-pressure giving paper S from paper feed roller 21 subtracts further
Few.
As known from the above, paper feed roller 21 resistance giving paper S becomes the state nearly close to zero,
When the rearward end of the paper S carried with conveying roller 12 is left from paper feed roller 21, paper S will not be given
Bigger resistance change.Thus, from print head 11a to when printing image on paper S, paper S
It is not likely to produce velocity variations, is not likely to produce on paper S on the image formed and band or image occur
Scale is according to the difference of position and the bad phenomenon such as variation.
It addition, terminate in being formed to the image printing picture Sa of paper S, and image processing system 1
When becoming halted state, then the direction of rotation of motor 41 is switched to rightabout, such as Fig. 6 (C)
Shown in, drive gear 25 to rotate the most counterclockwise, oscillating structural member 26 is to side counterclockwise
To rotation.Thus, paper feed roller 21 separates from the printing picture Sa of paper S.As it is shown on figure 3, printing
Component 11 is above, and the printing picture Sa of paper S is opposed with paper feed roller 21 and upward.But,
By making paper feed roller 21 separate from the printing picture Sa of paper S, thus, no in stopped process in advance
Paper feed roller 21 and the problem printing the bonding grade of picture Sa can be produced.
It addition, in the above-described embodiment, paper feed roller 21 roll shaft 22 and swing rotary body 28 it
Between be provided with clutch mechanism 30, but the image processing system 1 of the present invention can also be not provided with this clutch
Mechanism 30.Even if being not provided with clutch mechanism 30, as shown in Fig. 6 (A), Fig. 6 (B), with pendulum
The center of rotation of dynamic component 26 is positioned at the mode of the center of rotation O2 more upstream side than paper feed roller 21, will
Angle [alpha] shown in Fig. 3 is set as obtuse angle, angle beta is set as the angle more than 0 and is preferably set to
More than 45 degree less than 90 degree, thus, paper S speed from v1 by speedup to v2 time, counterclockwise
The moment loading in direction is in oscillating structural member 26, it is possible to the plus-pressure making paper feed roller 21 give paper S reduces.
Thus, when paper departs from from paper feed roller 21, the excessive velocity variations of paper S will not be given.
Additionally, in the above-described embodiment, it is situated between and is having bearing between driving gear 25 and oscillating structural member 26
Carry and give component 27, even if making load give component 27 Jie be wobble gear 28a and oscillating structural member
Between 26, can make relative to swing when driving gear 25 to rotate clockwise similarly
Component 26 moment M1 clockwise plays a role.
Claims (6)
1. an image processing system, is provided with:
Paper setting unit, is provided with the paper of more than 1；
Delivering mechanism portion, sends paper from above-mentioned paper setting unit；
Image forming part, is forming image on the paper that above-mentioned paper setting unit is sent；And
Conveying roller, gives paper sheet delivery power at above-mentioned image forming part,
Above-mentioned image processing system is characterised by,
Above-mentioned delivering mechanism portion has:
Drive gear；
Oscillating structural member, swings with the center of rotation of above-mentioned driving gear for fulcrum；
Wobble gear, is supported by above-mentioned oscillating structural member, and engages with above-mentioned driving gear；
Paper feed roller, rotates together with and gives paper with above-mentioned wobble gear and send power；And
Load gives component, between above-mentioned oscillating structural member and above-mentioned driving gear and above-mentioned swing structure
At least one party between part and above-mentioned wobble gear gives load,
The transporting velocity giving paper from above-mentioned conveying roller is set to that ratio is from above-mentioned paper feed roller imparting paper
Rate of delivery is fast,
Give and connect the center of rotation of above-mentioned paper feed roller and the rotation of above-mentioned driving gear when power sent by paper
Turn the swing datum line L at center and by above-mentioned paper feed roller and the contact point of paper and to the paper side of sending
Obtuse angle is become to the tangent line H extended.
Image processing system the most according to claim 1, wherein,
It is provided with clutch mechanism between above-mentioned wobble gear and above-mentioned paper feed roller, until by above-mentioned paper supply
Till the paper that roller is sent arrives above-mentioned conveying roller, via above-mentioned clutch mechanism from above-mentioned wobble gear
Transmit driving force to above-mentioned paper feed roller, when paper is subject to the carrying capacity from above-mentioned conveying roller, pass through
Above-mentioned transporting velocity and the speed difference of above-mentioned rate of delivery, above-mentioned paper feed roller is not by from above-mentioned swing
The driving force ground of gear rotates.
Image processing system the most according to claim 2, wherein,
In above-mentioned clutch mechanism, above-mentioned wobble gear and above-mentioned paper feed roller are rotating against
Mode is supported, and is provided with the driving teat extended parallel to rotation centerline in above-mentioned driving gear side,
It is provided with in above-mentioned paper feed roller side and extends parallel to above-mentioned rotation centerline and with above-mentioned driving teat in rotation
Turn driven teat opposed on direction.
Image processing system the most according to claim 1, wherein,
Clip the mobile route of the paper sent from above-mentioned paper setting unit, be configured with above-mentioned paper in side
Open setting unit and above-mentioned conveying roller, be configured with above-mentioned paper feed roller at opposite side and be located at image forming part
Print-member, a part for above-mentioned paper setting unit and a part for above-mentioned print-member with above-mentioned shifting
Overlap on the direction that dynamic route is orthogonal.
Image processing system the most according to claim 4, wherein,
Above-mentioned conveying roller is the pressure roller opposed with above-mentioned print-member.
6. according to the image processing system described in any one in claim 1 to 5, wherein,
During above-mentioned paper feed roller stops, above-mentioned driving gear revolves to paper transport direction opposite side
Turning, paper feed roller separates with paper.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014-165094 | 2014-08-14 | ||
| JP2014165094A JP6326323B2 (en) | 2014-08-14 | 2014-08-14 | Image forming apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106183468A true CN106183468A (en) | 2016-12-07 |
| CN106183468B CN106183468B (en) | 2019-10-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510408073.9A Active CN106183468B (en) | 2014-08-14 | 2015-07-13 | Image forming apparatus |
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| Country | Link |
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| JP (1) | JP6326323B2 (en) |
| CN (1) | CN106183468B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109775402A (en) * | 2017-11-15 | 2019-05-21 | 佳能株式会社 | Sheet feeding apparatus and imaging device |
| CN112850299A (en) * | 2019-11-28 | 2021-05-28 | 阿尔卑斯阿尔派株式会社 | Image forming apparatus with a toner supply device |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN106183468B (en) | 2019-10-29 |
| JP2016041613A (en) | 2016-03-31 |
| JP6326323B2 (en) | 2018-05-16 |
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