CN1944208A - Sheet-feeding auxiliary device, image forming device, and image reading device - Google Patents
Sheet-feeding auxiliary device, image forming device, and image reading device Download PDFInfo
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- CN1944208A CN1944208A CN 200610128593 CN200610128593A CN1944208A CN 1944208 A CN1944208 A CN 1944208A CN 200610128593 CN200610128593 CN 200610128593 CN 200610128593 A CN200610128593 A CN 200610128593A CN 1944208 A CN1944208 A CN 1944208A
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Abstract
A sheet-feeding auxiliary device includes a sheet guiding member that is provided outside of a feed turning portion for changing a direction of feeding a sheet in a sheet path, a rotating member that is provided inside of the feed turning portion in opposite to the sheet guiding member, and a driving unit that drives the rotating member.
Description
Technical field
The present invention relates to sheet-feeding auxiliary device, image processing system and image read-out in the image recording structures such as image processing systems such as chopping machine, duplicator, facsimile apparatus or scanner.
Background technology
When requiring the image processing system miniaturization, also require to use the paper of all thickness in recent years.Be horizontally disposed with the interior page of paper feeding tray for example when desired location such as image forming part are supplied with being placed on, if page conversion direction ground is not carried out conveyance, then the shared scope in sheet-feeding road is expanded to horizontal direction, and image processing system is maximized in the plane or on the projection occupied area.
So, be willing in flat 10-265070 communique and the Te Kai 2002-274702 communique the spy, the circular-arc spigot surface of the page that has just carried out paper feeding from paper feeding tray by the page guide carried out bending change the conveyance direction.For example the page of releasing the carton from giving of horizontal arrangement is passed through to the crooked conveyance direction that changes of vertical direction.
One example of this paper feeding form is illustrated among Figure 20, Figure 21, Figure 22 A～Figure 22 D.Figure 20 uppermostly among the P sends by picking up roller 51 with paper being housed in to piling up with paper in the carton, and by supplying with roller 52 and commutation roller 53 is separated into one.Followingly be called the FRR separate mode with the paper separate mode this.By with paper guide member 17 with inboard guide member 50 guiding and after separating, carry out conveyance in the carrying channel, thereby the conveyance direction is changed over upwards, by pinch roll to 55a, 55b conveyance upward, supplies such as intermediate transfer portion downstream.The paper feeding form of this structure since be with after separated part with regard to change sheet-feeding direction and lead pinch roll to and conveyance paper, so can shorten separated part and pinch roll between distance, saving space, advantage that cost is low are arranged.
But as Figure 20 in detail expression with paper conveyance state, after the separation with at first slip and bear the conveyance load on paper guide member 17 of paper.Conveyance further continues then shown in Figure 21, Figure 22 A～Figure 22 D, by sliding and conveyance load increase on paper guide member 17 and inboard guide member 50 these both sides.Particularly remarkable in upright strong increases of using conveyance load under the paper situation such as ground paper.Particularly in the FRR separate mode by supply with that roller 52 supplies with the cause of roller 53 loads is difficult to increase conveyance power because separated part commutates with paper.In other words, then be difficult to improve the conveyance power of supplying with roller if consider separating property, driving torque, rolling wheel wear etc., so supply with ground paper, postcard, envelope etc. upright strong during with paper because of using paper conveyance instability greatly with the conveyance load that paper bore, produce problem slow with the paper supply or that do not supply with sometimes.Even and other separate mode, because in the conveyance load with paper guide member 17 and inboard guide member 50 of change with the part place of paper conveyance direction, particularly ground paper etc. upright strong then also be with paper conveyance instability with paper, produce sometimes with paper and supply with problem slow or that do not supply with.
As the method that addresses this problem have not will after the separated part just change at once with paper conveyance direction but will be after separated part conveyance paper as the crow flies, divide configuration carrying roller to (pinch roll to) in this straight portion, rechanging the conveyance direction with this carrying roller after to clamping with paper.Promptly by the downstream at carrying roller conveyance direction changing unit being set just might solve.
But this method need become big by the plant bulk on the horizontal direction the straight line conveying unit is arranged after the separated part at once.And need unnecessary carrying roller to and cost has also risen.Therefore, above-mentioned will after the separated part just change with the paper feeding form of paper conveyance direction " can shorten separated part and pinch roll between distance, saving space, advantage are cheaply arranged " just do not had.
In addition, as shown in figure 23, also considered the carrying roller 55a of all sides in the conveyance path is maximized, and further the horizontal conveying unit after will being arranged in separated part is appended driven voller 17b, on one side crooked page increase the structure of its conveyance power on one side.
But under the situation of this structure, carrying roller 55a must have and the predetermined balanced mutually radius of curvature of upright intensity that uses page, carrying roller 55a becomes sizable size and saving space that can not implement device, has the layout of miscellaneous part all to have no alternative but the problem that will change.
Also considered inboard guide member 50 is removed, but the holding part place that at this moment might page when conveyance has the page that upsweeps can not reach carrying roller 55a and driven voller 17b, surface that in addition might page accept the foreign matter (toner, lubricated wet goods) that disperses from base side.
Summary of the invention
The present invention solves the problems referred to above that conventional images forms usefulness paper conveying units such as device, its purpose be to save the space and at low cost page from supply with roller 52 reliably conveyance do one's utmost to reduce the resistance of when this conveyance, using paper simultaneously to having changed the carrying roller that is provided with before the sheet-feeding direction.
The objective of the invention is to solve at least above-mentioned problem.
Sheet-feeding auxiliary device of the present invention comprises: use the paper guide member, it is set at the outside, turning part of change sheet-feeding direction in the sheet-feeding path; Turning unit, it is with described relative and be set at inboard, described turning part with the paper guide member; Drive division, it drives described turning unit rotation.
Image processing system of the present invention possesses the sheet-feeding auxiliary device that is configured in all sides in the sheet-feeding path, described sheet-feeding auxiliary device comprises: use the paper guide member, it is set at the outside, turning part of change sheet-feeding direction in the sheet-feeding path; Turning unit, it is with described relative and be set at inboard, described turning part with the paper guide member; Drive division, it drives described turning unit rotation.
Image read-out of the present invention comprises: mounting portion, its mounting original copy page; Conveying unit, its described original copy page that is positioned in the described mounting portion carries out conveyance according to the sheet-feeding path; Reading part, its described original copy page reads as image; Upset portion, its upset is along the pros and cons of the described original copy page of described sheet-feeding path conveyance; Use the paper guide member, it is set at the outside, turning part of the described original copy sheet-feeding direction of change in the described sheet-feeding path; Turning unit, it is with described relative and be set at inboard, described turning part with the paper guide member; Drive division, it drives described turning unit rotation.
Can realize above-mentioned purpose by said structure, save the space and at low cost page from supply with above-mentioned rollers reliably conveyance do one's utmost to reduce the resistance of when this conveyance, using paper simultaneously to having changed the carrying roller that is provided with before the sheet-feeding direction.
Other purposes above-described and of the present invention, characteristics, advantage just can be understood following detailed description of the invention from using accompanying drawing.
Description of drawings
Fig. 1 is the sectional structure chart of the expression first embodiment image processing system summary;
Fig. 2 is the section-drawing with the paper carrying channel of the expression first embodiment image processing system;
Fig. 3 A is changing the amplification profile of part upward for the sheet-feeding direction send from the first embodiment sheet-feeding auxiliary device to carton;
Fig. 3 B is expression further entering and the amplification profile of the elongated situation of circumvolution length to the page that send to carton from the first embodiment sheet-feeding auxiliary device;
Fig. 4 is the turning roller of the expression first embodiment sheet-feeding auxiliary device and the block diagram of its front and back roller member axial arrangement;
Fig. 5 is the lateral plan of the drive system of expression turning roller of the first embodiment sheet-feeding auxiliary device and clamping driven roller;
Fig. 6 is the block diagram of the drive system of expression turning roller of the first embodiment sheet-feeding auxiliary device and clamping driven roller;
Fig. 7 is the block diagram of the drive system of expression turning roller of the second embodiment sheet-feeding auxiliary device and clamping driven roller;
Fig. 8 is the lateral plan of the turning roller driving system structure of the expression second embodiment sheet-feeding auxiliary device;
Fig. 9 is expression the 4th embodiment is provided with auxiliary turning roller in the both sides of turning roller a block diagram;
Figure 10 A is the amplification profile of expression the 5th embodiment sheet-feeding auxiliary device structure;
Figure 10 B is the amplification profile that the belt wheel of expression the 5th embodiment sheet-feeding auxiliary device is kept out of the way;
Figure 10 C is the block diagram of expression the 5th embodiment sheet-feeding auxiliary device driving condition;
Figure 11 is the block diagram that expression is installed in the sheet-feeding auxiliary device of the 5th embodiment state on the image processing system;
Figure 12 A is the amplification profile of expression the 6th embodiment sheet-feeding auxiliary device structure;
Figure 12 B is the amplification profile that the belt wheel of expression the 6th embodiment sheet-feeding auxiliary device is kept out of the way;
Figure 12 C is the block diagram of expression the 6th embodiment sheet-feeding auxiliary device driving condition;
Figure 13 is the amplification profile that belt wheel and conveyance band have been installed on the belt shaft of the 6th embodiment sheet-feeding auxiliary device;
Figure 14 is the amplification profile that other structures of belt wheel and conveyance band have been installed on the belt shaft of the 6th embodiment sheet-feeding auxiliary device;
Figure 15 is the section-drawing that has used the variation of roller on the sheet-feeding auxiliary device of the 6th embodiment;
Figure 16 is the block diagram of the conveyance band bilge construction of expression the 6th embodiment sheet-feeding auxiliary device;
Figure 17 is the block diagram that expression is installed in the sheet-feeding auxiliary device of the 6th embodiment state on the image processing system;
Figure 18 is illustrated in the sectional structure chart that has used on the present embodiment image processing system with the variation summary of the direct transfer printing mode of paper;
Figure 19 is the section-drawing of original copy automatic feed device;
Figure 20 is changing the amplification profile of part upward for the sheet-feeding direction of sending from existing sheet-feeding auxiliary device to carton;
Figure 21 is expression from the amplification profile of further getting the hang of for the page that send to carton of existing sheet-feeding auxiliary device;
Figure 22 A, 22B, 22C and 22D are illustrated in the existing sheet-feeding auxiliary device upright strong page mode chart of each time state during conveyance in crooked carrying channel;
Figure 23 is the instruction diagram of existing other morphosis of sheet-feeding auxiliary device of expression.
The specific embodiment
Sheet-feeding auxiliary device, original copy automatic feed device and the image processing system of present embodiment below are described with optimum embodiment with reference to the accompanying drawings.
Fig. 1 is the sectional structure chart of the expression first embodiment image processing system summary.Image processing system 100 shown in Figure 1 disposes the intermediate transfer belt 11 that is wound on a plurality of rollers in the substantial middle portion of device body, disposes four image-generating unit 10M, 10C, 10Y, 10Bk along the downside traveling limit of this intermediate transfer belt 11.
Each image-generating unit 10M, 10C, 10Y, 10Bk possess respectively as photosensitive drum body 1M, 1C, 1Y, 1Bk as supporting body.Around this photosensitive drum body 1M, 1C, 1Y, 1Bk, dispose Charging system 2M, 2C, 2Y, 2Bk, developing apparatus 3M, 3C, 3Y, 3Bk, washing equipment 4M, 4C, 4Y, 4Bk etc. respectively, and be provided with primary transfer roller 12 as primary transfer mechanism with inboard that each photosensitive drum body 1M, 1C, position that 1Y, 1Bk are relative are in intermediate transfer belt 11.Four image-generating unit 10M, 10C of present embodiment, 10Y, 10Bk are made of identical structure, but are red, green, yellow, these four different looks of black by the handled toner color of the developing apparatus of each image-generating unit.Four image-generating unit 10M, 10C of present embodiment, 10Y, 10Bk dispose from a left side by color sequences red, green, yellow, black.Each image-generating unit 10M, 10C, 10Y, 10Bk are configured to can be contained on the image forming device body as handle box and can remove.
Below image-generating unit 10M, 10C, 10Y, 10Bk, be provided with optical writing device 14.Optical writing device 14 has not shown polygon mirror and catadioptre group etc., photosensitive drum body 1M, 1C, 1Y, the 1Bk surface irradiation of the laser that has carried out light modulation to image-generating unit of all kinds.Optical writing device 14 also can be arranged on each image-generating unit 10M, 10C, 10Y, the 10Bk singly, but if the common optical writing device of use then is favourable on cost.Intermediate transfer belt 11 in the present embodiment and optical writing device 14 be coverlet unit modularization also, is the structure that can install and remove on device body respectively.
Be equipped with double-ply in the bottom of device and give carton 15a, 15b, and be provided with and respectively give the cooresponding paper feeding mechanism 16a of carton, 16b.It is identical that double-ply is given the structure of carton 15a, 15b and paper feeding mechanism 16a, 16b, and change also is identical from the structure of respectively giving carton sheet-feeding direction sheet-feeding portion partly.Being changed the conveyance direction upward with recording mediums such as paper (below be called page) and delivered to against roller by this paper feeding mechanism 16a, 16b conveyance to 18.Be provided with above to 18 as the secondary transfer roller 19 of secondary transfer printing mechanism against roller at this and, formed secondary transfer printing portion with relative around the transfer printing opposed roller 13 of one of roller of hanging intermediate transfer belt 11.
Upside in secondary transfer printing portion is provided with fixing device 20, disposes to be used to switch first of sheet-feeding direction～ 3rd switching pawl 21,22,23 above this fixing device 20.Each switches pawl 21～23 and switches by not shown actuators such as magnet coil.Reference numeral 24～27th, the carrying roller that appropriately is configured in the sheet-feeding path is right.Reference numeral 35～41st appropriately is configured in the paper sensor of using in the sheet-feeding path.
Be constituted as discharge tray 30 above the image processing system 100, the exit roller that is used for discharging pages to this discharge tray 30 is to 29 upper left sides that are configured to be positioned at fixing device 20.In unit, two sides 60, be formed with carrying channel 61 and paper feeding road 62 in a zigzag again.Inlet portion (device upside) at zigzag carrying channel 61 is provided with first twist rollers to 31, is provided with second twist rollers midway to 32 at zigzag carrying channel 61.First and second twist rollers are to the 31, the 32nd, structure that can positive and negative rotation.Paper feeding road 62 is more roughly being disposed carrying roller to 26,27 on the position of trisection.The described the 3rd switch pawl 23 be configured near first twist rollers to 31 places from zigzag carrying channel 61 on the position that paper feeding road 62 enters again.
Be provided with manual pallet 33 in the side of unit, two sides 60, it can be released and push in.Fig. 1 has represented state that manual pallet 33 is released.For page is carried out paper feeding and is provided with to have the paper feeding mechanism 34 with spline structure with paper feeding mechanism 16a, 16b from this manual pallet 33.Dispose again feed roll 28 in the side of this paper feeding mechanism 34, the inboard of device.Driven voller 72,73 in crimping respectively in the both sides up and down of feed roll 28 again.This again feed roll 28 be can positive and negative rotation structure, when paper feeding road 62 is carried out paper feeding to page again again to figure the anticlockwise direction driven in rotation, when manual pallet 33 carries out paper feeding to page again to figure the clockwise direction driven in rotation.
The image of the present embodiment image processing system 100 of simple declaration said structure forms action. Photosensitive drum body 1M, 1C, 1Y, the 1Bk of above-mentioned image-generating unit 10M, 10C, 10Y, 10Bk are driven to right-hand revolution among the figure by not shown driver train, and the surface of this photosensitive drum body 1M, 1C, 1Y, 1Bk is by Charging system and by same area specified polarity.From optical writing device 14 laser is shone to charged photosensitive surface, like this, on the surface of photosensitive drum body 1M, 1C, 1Y, 1Bk, just be formed with electrostatic latent image.At this moment, the graphicinformation that is exposed on each photosensitive drum body 1M, 1C, 1Y, 1Bk is that the full-color image of wishing has been resolved into monochrome image information red, green, yellow, black color information.From developing apparatus each colour toners is paid on the electrostatic latent image that forms like this and as the toner picture by visual.
And can use any of image-generating unit 10M, 10C, 10Y, 10Bk and form monochrome image, or form the image of dichromatism or three looks.Under the situation of monochrome printers, be to use the Bk unit of the figure rightmost side in four image-generating units to carry out image formation.Transfer printing the remaining toner that adheres on photosensitive drum body 1M, 1C, 1Y, the 1Bk surface behind the toner picture, removed from photosensitive surface by washing equipment, its surface is subjected to remove the effect of electrical equipment and surface potential is removed then, forms to be used for subsequent images.
On the other hand from page being selected paper feeding for carton 15a, 15b or manual pallet 33, and by against roller to 18 obtain with intermediate transfer belt 11 on the toner picture synchronously (timing) and send of carrying to the secondary transfer printing position.Present embodiment applies transfer voltage with the charged polarity opposite polarity of toner of intermediate transfer belt surface toner picture to secondary transfer roller 19, and like this, the lip-deep toner picture of intermediate transfer belt just has been transferred on the page in the lump.The page that has been transferred the toner picture melts photographic fixing to the toner picture on page by heat and pressure by fixing device 20 time.By photographic fixing page formed row's paper portion 30 discharges to image processing system 100 above by exit roller 29.
Below describe the carrying channel of page in detail.Fig. 2 is the section-drawing with the paper carrying channel of the expression first embodiment image processing system.Among Fig. 2 when being printed on one side the sheet-feeding road when giving carton 15a, 15b paper feeding represent with solid line " 1 ".
Above the image processing system above the described second switching pawl 22, can install selection discharge trays such as four groove pallets (4 PVC Application ト レ イ) (not shown), also can discharge the page after the photographic fixing to this not shown selection pallet with classification (ソ one ト) function.The sheet-feeding road passed through fixing device 20 after of page when selecting pallet (not shown) to discharge represented with dotted line " 2 " in Fig. 2.
When on the page two sides, printing be by first～the 3rd switch pawl 21～23 suitably switch make on the page single face photographic fixing page of toner picture enter in a zigzag in the carrying channel 61.First and second twist rollers are rotated to positive dirction (clockwise direction among Fig. 1) 31,32.Carrying roller when making page enter in the zigzag carrying channel 61 is represented with long and two-short dash line " 3 " at Fig. 2 25 later conveyance paths.
Then, having entered in a zigzag, carrying channel 61 interior page rear ends are then made first and second twist rollers rotate the page that overturns to 31,32 to reversing sense (anticlockwise direction among Fig. 1) if detect with paper sensor 40.At this moment switch pawl 23 and the page that has been reversed is sent into to paper feeding road 62 again by switching the 3rd.
Again paper feeding road 62 its bottom with converge from the sheet-feeding road of manual pallet 33, and the inboard of feed roll 28 again with converge from the sheet-feeding road of giving carton 15a, 15b.Page is coming conveyance by carrying roller to 26,27 in the paper feeding road 62 again, and passes through feed roll 28 to supplying with 18 against roller again.By paper feeding road 62 again, switch pawl 23 from the 3rd and among Fig. 2, represent with long and short dash line " 4 " to the sheet-feeding road of converging part with solid line " 1 ".Page among Fig. 2, representing when manual pallet 33 carries out paper feeding with dotted line " 5 " to the sheet-feeding road that breaks away from again feed roll 28 positions.
Make the page that in zigzag carrying channel 61, has been reversed by paper feeding road 62 again and the pros and cons of page is turned over, look like toner to be transferred on the reverse side of this page from middle transfer belt 11, by this reverse side image by fixing device 20 photographic fixing, and tow sides are had the page of image discharge to discharge tray 30 or not shown selection pallet, so just finished two-face printing.
Below describe the sheet-feeding auxiliary device of the first embodiment image processing system in detail.Fig. 3 A is changing the amplification profile of part upward for the sheet-feeding direction send from the first embodiment sheet-feeding auxiliary device to carton.Because it is identical that double-ply shown in Figure 1 is given the structure of carton 15a, 15b and paper feeding mechanism 16a, 16b, and change also is identical from the structure of the sheet-feeding portion that respectively gives carton sheet-feeding direction part, so, below to describing for the sheet-feeding mechanism of carton 15a from the upper strata.
Be housed among Fig. 3 A and pile up uppermost page P to the page in the carton 15a and send, and the supply roller 52 by the FRR separate mode and commutation roller 53 are separated into one and send by picking up roller 51.First embodiment turning roller 54 be arranged to be positioned at the sheet-feeding direction the inboard and with relative with paper guide member 17.This turning roller 54 is driven by drive system described later.The outer peripheral face of turning roller 54 is by the high parts of friction coefficient, for example formation such as EP rubber, poly-urethane rubber.Promptly dispose and supply with roller 52 and commutation roller 53, dispose the pinch roll that constitutes by clamping driven roller 55a and clamping driven voller 55b in the sheet-feeding direction downstream of turning roller 54 55 at the sheet-feeding direction upstream side of turning roller 54.
In the sheet-feeding portion of said structure, by pick up uppermost page P that roller 51 sends by make the page front end shown in Fig. 3 A with paper guide member 17 on moving contact make above the conveyance direction little by little is partial to from general horizontal direction.As shown in Figure 3A, if the page front end enter into certain position then page above touch turning roller 54.At this moment, the page front end is met on the upside guide surface 17a with the paper guide member, and is upright and page is pushed by the direction of arrow that the roller 54 of turning makes progress in figure by page had.Turning roller 54 rotates by propulsive effort, and the outer peripheral face of roller forms by high friction means, so the page of being pushed by turning roller 54 obtains conveyance power (the figure oblique arrow) to the right from turning roller 54.
Shown in Fig. 3 B, along with page further enters and the variation of sheet-feeding direction becomes big and page the circumvolution length of turning roller 54 is become big, the suffered conveyance power of page becomes big.Fig. 3 B is expression further entering and the amplification profile of the elongated situation of circumvolution length to the page that send to carton from the first embodiment sheet-feeding auxiliary device.Same parts is represented with identical Reference numeral and is omitted explanation.Owing to made conveyance direction changing unit, obtain conveyance power like this,, can stably change the sheet-feeding direction and carry out conveyance so can eliminate the influence of this part conveyance load from turning roller 54 by the page of conveyance.When the conveyance of page is advanced further, then the page front end is added on clamping driven roller 55a and the clamping driven voller 55b, and by its rotational force and to approximate vertical top conveyance.
As shown in Figure 3A, with 17 of paper guide members and turning roller 54 relative are arranged to direction bending with paper upside guide surface 17a to change sheet-feeding direction.By such design, add the structure that turning roller 54 is set in the inboard that changes the sheet-feeding direction, just can not be excessively but carry out the change of sheet-feeding direction swimmingly.
First embodiment is no matter be the structure that just changes the sheet-feeding direction in the back of supplying with roller 52 and commutation roller 53, by turning roller 54 is set between to 55 makes that to supply with roller 52, commutation roller 53 and the pinch roll distance between to 55 elongated supplying with roller 52, commutation roller 53 and pinch roll, can not need straight part is set and become the structure in saving space.And the parts that append on existing structure lack also that some are also no problem, can become the packaged plant structure, so can also suppress the increase of cost.
Can be by the outer peripheral face of turning roller 54 is formed by the high parts of friction coefficient the conveyance power of turning roller 54 more reliably to the page transmission.Therefore, can be reduced in the load that makes conveyance direction change section office reliably.Even various pages also can transmit conveyance power to it.Promptly in said structure if turning roller 54 as benchmark, then supplying with roller 52 is turning preliminary rollers, clamping driven roller 55a and clamping driven voller 55b are the back rollers of turning.
Fig. 4 is the turning roller of the expression first embodiment sheet-feeding auxiliary device and the block diagram of its front and back roller member axial arrangement.Same parts is represented with identical Reference numeral and is omitted explanation.As shown in Figure 4, turning roller 54 is made of left wheel 54L and right roller 54R, is arranged to be positioned between the two and supply with roller 52.Clamping driven roller 55a is made of three rotor block 54a-L, 54a-C, 54a-R, and the left and right sides roller 54L and the 54R of these three rotor block 54a-L, 54a-C, 54a-R and turning roller 54 are the configurations of staggering mutually.As Fig. 3 A, Fig. 3 B during from axially the seeing of each roller member, it is overlapping with regard to some with turning roller 54 to supply with roller 52 like this, and turning roller 54 and clamping driven roller 55a some is overlapping.The left side of Fig. 4 (L side) is the front side of device, and right side (R side) is the inboard of device.
Like this, overlapping on section by the roller member of turning roller 54 and its front and back is changed configuration on the S. A. direction, just can in narrow space, dispose turning roller 54.Therefore, can realize the reduction load of partly locating in change sheet-feeding direction with the structure of more saving the space.And make roller member overlapping structure on section of turning roller 54 and its front and back either party that the effect of saving the space also be arranged.
It is about 90mm that first embodiment is arranged to the distance between the left wheel 54L of turning roller 54 outside and the right roller 54R outside.This is because the upright strong page that conduct is often used in image processing systems such as chopping machine is civil service system postcard (width 100mm) and envelope (what in general often use is more than the width 92mm), the cause that can carry out effective conveyance to them.The sheet-feeding benchmark of present embodiment image processing system 100 is central reference, so turning roller 54 also is as one man to be configured with its central reference.
Fig. 5, Fig. 6 are the lateral plan and the block diagrams of the drive system of expression turning roller 54 of the first embodiment sheet-feeding auxiliary device and clamping driven roller 55a.Same parts is represented with identical Reference numeral and is omitted explanation.As shown in Figure 5 and Figure 6, on the axle 54c of the roller 54L of turning roller and roller 54R, be equiped with gear 54g.On the axle 55d of roller 55a-L, the roller 55a-C of clamping driven roller, roller 55a-R, be equiped with gear 55g.And be provided with and gear 54g and the intermeshing idler gear 56 of gear 55g (not shown in Fig. 6).First embodiment drives the axle 55d of clamping driven roller 55a by not shown driver train, thereby forms the structure that drives turning roller 54 by idler gear 56.Therefore, the first embodiment transfer roller 54 is that the driving with clamping driven roller 55a synchronously is switched on/cuts off (driving/stop), therefore just can make turning roller 54 and turn that afterwards roller is synchronous with simple structure.Consequently can set for the linear velocity of turning roller 54 with the page linear velocity roughly the same.
Roughly the same by the linear velocity and the page linear velocity that make turning roller 54, can not give page with the friction etc. damage.Promptly from the page of giving carton 15a or 15b institute paper feeding when quilt turning preliminary roller carries out conveyance to (supplying with roller 52 and commutation roller 53) and the back roller of turning under to the state of (pinch roll is to 55) this both sides' clamping, if turning roller 54 is then might rub page during with the speed rotation different with the page linear velocity and give page and damage.Be that the next damage to page of situation that formed by high friction means is big particularly at the outer peripheral face of turning roller 54.
In general resist roller and be positioned at the structure that (upstream) carrying roller in front of it is a driven in synchronism/stop.This also is the same in first embodiment, be for cooperate against, touch when roller stops 18 by the difference of page size sometimes the also clamped roller in the rear of page to 55 clampings at the page front end.Therefore just need be at pinch roll when roller stops 18 to 55 causes that also stop.The rear that at this moment page by the difference of page size arranged from pinch roll to 55 situations that further extend to turning roller 54 positions.Therefore, might be after turning roller be that clamping driven roller 55a stops and sheet-feeding when stopping, turning roller 54 is friction page and give page with damage continuing rotation.Be that the next damage to page of situation that formed by high friction means is big particularly at the outer peripheral face of turning roller.
But first embodiment drives synchronously/stops by making the turning roller 54 and the driving of the back roller (clamping driven roller 55a) of turning, and does not then give the damage of page with friction etc.Add the handlebar device structure and simplify, can suppress the rising of cost.As the drive system of turning roller 54 except the structure of using gear, also can belt wheel and the drive system of belt conveyor etc.
Clamping driven roller 55a is identical with the situation of general image processing system, and its 55d is supported in before and after the device between the framework, and accepts propulsive effort from being configured in the inboard not shown drive system of device.On the other hand as shown in Figure 6, the turn length of turning roll shaft 54c of roller 54 of first embodiment is short, be with the both sides of left and right sides roller 54L, the 54R of the about 90mm width configuration length of projecting degree a little, and be supported on the parts (not shown) such as frame by bearing 57,57.The driving of turning roller 54 is that the axle from clamping driven roller 55a drives by gear row (or belt wheel and belt conveyor).Therefore, for support turning roller 54 and drive and need be before and after the image processing system long like that axle between the framework, also realize saving space, low cost in this.
As mentioned above, sheet-feeding auxiliary device according to the first embodiment image processing system, the tight back of supplying with roller 52 and commutation roller 53 on the sheet-feeding road is provided with: use the turning roller 54 of the big material of surface friction coefficient and change sheet-feeding direction with paper guide member upside guide surface 17a, and link driving by turning roller 54 and the pinch roll that is arranged on sheet-feeding direction downstream are disposed with rollers different on the S. A. direction 55, can save the space and do one's utmost to alleviate damage more reliably in the conveyance page page.
Below describe the sheet-feeding auxiliary device of the second embodiment image processing system in detail.The image processing system of the image processing system of second embodiment and first embodiment is same structure.Identical structural element is represented with identical Reference numeral and is omitted explanation in the image processing system of second embodiment.Second embodiment except on turning roller 54 coaxial, be provided with the auxiliary turning roller that rotates freely different with the driving system structure of turning roller 54, be identical with first embodiment of above-mentioned explanation, so omit repeat specification different parts is described.
Fig. 7 is the block diagram of the drive system of expression turning roller of the second embodiment sheet-feeding auxiliary device and clamping driven roller.Same parts is represented with identical Reference numeral and is omitted explanation.As shown in Figure 7, dispose the auxiliary turning roller 58,58 that rotates freely in axial two outsides of roller 54L, the 54R of turning roller.The roller 54L of turning roller, 54R structure are identical with Fig. 3～Fig. 6's.Auxiliary turning roller 58 is fixed on roller 58a on the S. A. 58b that is supported by bearing 57.Roller 58a is identical with roller 54L, the 54R of turning roller 54.And bearing 57 also be arranged on not shown another of S. A. 58b distolateral come up rotate freely with two supports S. A. 58b.Second embodiment is the axle 54c that S. A. 58b is arranged on the roller 54 of turning on coaxial, and therefore, the roller 58a of auxiliary turning roller 58 is to dispose on coaxial with roller 54L, the 54R of turning roller 54.And the drum that the roller 58a of auxiliary turning roller 58 and the roller 54L of turning roller 54,54R are same diameter.
The auxiliary turning roller 58,58 of both sides is graphic in the figure to be respectively to have a roller 58a, roller 58a respectively, but also can on one (one-sided) auxiliary turning roller 58 a plurality of roller 58a be set.The roller 54 ( roller 54L, 54R) of turning as mentioned above obtains propulsive effort and is driven in rotation, but auxiliary turning roller the 58, the 58th, not driven roller that rotates freely, auxiliary turning roller the 58, the 58th revolution by the page band of conveyance change sheet-feeding direction part.
Like this, second embodiment is by also contacting on auxiliary turning roller 58,58 the wide page of width reliably at the auxiliary turning roller 58,58 of two outsides of turning roller 54 configuration, the auxiliary conveyance direction change of carrying out page makes the more stable and minimizing conveyance load of the sheet-feeding of partly locating in change sheet-feeding direction.
Since the turning roller 54 of central portion as driven roller, the auxiliary turning roller 58,58 in the outside as rotating freely roller, so be not the structure of complexity.If then need to make axle drive shaft to reach whole width when wanting on the whole width of page, to drive the turning roller, but second embodiment is the turning roller 54 that only drives central portion, so just axle drive shaft only is can at the central portion of page width.
Fig. 8 is the lateral plan of the turning roller driving system structure of the expression second embodiment sheet-feeding auxiliary device.Same parts is represented with identical Reference numeral and is omitted explanation.As shown in Figure 8, the axle that is provided with and is installed in turning roller 54 on the 54c gear 54g and be installed in the intermeshing idler gear 59 of gear 52g on the axle 52c that supplies with roller 52.Second embodiment drives the axle 52c that supplies with roller 52 by not shown driver train, and drives turning roller 54 by idler gear 59.
Promptly the sheet-feeding auxiliary device of first embodiment be drive turning roller 54 and with downstream roller pinch roll 55 interlocks of turning roller 54, relatively second embodiment drives turning roller 54 and supplies with roller 52 interlocks with the upstream side roller of turning roller 54.Pinch roll 55 is identical with first embodiment, is the axle 55d that drives clamping driven roller 55a by not shown driver train.
Second embodiment is provided with not shown free-wheel clutch between the gear 54g of turning roller 54 and axle 54c, when the direction of arrow (anticlockwise direction among Fig. 8) is rotated propulsive effort is passed to a 54c at gear 54g, then turning roller 54 when turning roller 54 is subjected to from exterior power to direction of arrow rotation can not be to its direction rotation.
Like this, the roller in turning roller 54 downstreams, be pinch roll to 55 extracting page out during the conveyance page, for example pinch roll to 55 linear velocity than the fast situation of the linear velocity of turning roller 54 under and supply with roller 52 be the state (propulsive effort is not given the state of turning roller 54 with) that stops and pinch roll to 55 driven situations under, turning roller 54 also can with sheet-feeding speed coincide along with rotation.
It is gear drive that the driving of turning roller 54 is not limited to, and also can use belt wheel and belt conveyor to wait and drive turning roller 54.At this moment also can realize and above-mentioned same effect by between the axle 54c of belt wheel and turning roller 54, free-wheel clutch being set.
As mentioned above, sheet-feeding auxiliary device according to the second embodiment image processing system, by with turning roller 54 coaxial on the auxiliary turning roller that rotates freely is set and turning roller 54 is linked with the supply roller 52 that is arranged on sheet-feeding direction upstream side and drive, can save the space and do one's utmost to alleviate damage more reliably in the conveyance page page.
Below describe the sheet-feeding auxiliary device of the 3rd embodiment image processing system in detail.The image processing system of the image processing system of the 3rd embodiment and first embodiment is same structure.Identical structural element is represented with identical Reference numeral and is omitted explanation in the image processing system of the 3rd embodiment.The 3rd embodiment is except being arranged to switch the linear velocity of turning roller 54, is identical with first embodiment of above-mentioned explanation, so omit repeat specification different parts is described.
The Fig. 7 that illustrates among the 3rd embodiment and second embodiment is same structure, and is arranged to switch the linear velocity of turning roller 54.Be not to use the gear row or belt wheel and belt conveyor etc. drive turning roller 54 from clamping driven roller 55a as the concrete structure of drive system, but the structure that for example drives turning roller 54 by other motor realizes.
At this, right at the page back roller of being turned, promptly pinch roll is to making the linear velocity of turning roller 54 bigger than the linear velocity of page before 55 clampings, then switches the linear velocity of turning roller 54 during to 55 clampings and becomes the linear velocity identical with page at the clamped roller of page.Like this, in conveyance page more reliably, can prevent damage to page.
Not to be provided with under the situation of the roller relative (not being the situation of coming clamping page structure with the pair of rolls parts) with turning roller 54, because page is only uprightly to be pushed by turning roller 54 with what page self had, so be easy to generate slip, but be to drive turning roller 54 before the clamped roller of page front end is to 55 clampings with the linear velocity faster than page linear velocity, conveyance page more reliably so just.The clamped roller of page front end during to 55 clampings then to drive turning roller 54 with page linear velocity linear velocity about equally, so just prevented to give page with damage.
Also can similarly assist turning roller 58,58 with second embodiment as shown in Figure 7 in two arranged outside of turning roller 54.When suppressing structure complicated, can also more stably carry out sheet-feeding and reduce the conveyance load like this for the wide page of width at the part place that changes the sheet-feeding direction.
As mentioned above, sheet-feeding auxiliary device according to the 3rd embodiment image processing system, by being to make the linear velocity of turning roller 54 bigger before the clamped roller of page is to 55 clampings than the linear velocity of page, then switch the linear velocity of turning roller 54 during to 55 clampings and become the linear velocity identical at the clamped roller of page, then can save the space and do one's utmost to alleviate damage more reliably in the conveyance page page with page.
Below describe the sheet-feeding auxiliary device of the 4th embodiment image processing system in detail.The image processing system of the image processing system of the 4th embodiment and first embodiment is same structure.Identical structural element is represented with identical Reference numeral and is omitted explanation in the image processing system of the 4th embodiment.The 4th embodiment except the Facing material of turning roller 54 different and the linear velocity of turning roller 54 set for than the linear velocity of page fast, be identical with first embodiment of above-mentioned explanation, so omit repeat specification different parts is described.
The 4th embodiment is made of turning roller 54 ( roller 54L, 54R) material the material of softs such as sponge and foamed polyurethane.And also can form the material of the outermost layer of turning roller 54 ( roller 54L, 54R) by soft.And the linear velocity of turning roller 54 is driven into the linear velocity faster than page.As the concrete structure of drive system is the gear 54g by making Fig. 5 and turning roller 54 shown in Figure 8 or the number of teeth of idler gear 56,59, or the number of teeth of both sides' gear is different with second embodiment with first embodiment, thereby can be driven into the linear velocity faster than page to the linear velocity of turning roller 54.When using belt wheel and belt conveyor etc., then just can tackle by changing the belt wheel footpath.Or also can be other motor-driven of turning roller 54 usefulness.
Promptly when page is turned preliminary roller roller is carried out conveyance under to the state of (pinch roll is to 55) this both sides' clamping to (supplying with roller 52 and commutation roller 53) and after turning, even turning roller 54 is driven with the linear velocity faster than page, also turning roller 54 can not damage page owing to the distortion of the turning roller 54 that is made of the soft material, can give conveyance power to page at the part place that changes the sheet-feeding direction.
Be not provided with at opposite position under the situation of roller (not being the situation of coming clamping page structure with the pair of rolls parts) with turning roller 54, because page is only uprightly to be pushed by turning roller 54 with what page self had, so be easy to generate slip, but by drive just conveyance page more reliably of turning roller 54 with the linear velocity faster than page.
Also can similarly assist turning roller 58,58 with second embodiment in two arranged outside of turning roller 54.When suppressing structure complicated, the page wide for width also can more stably carry out sheet-feeding and reduce the conveyance load at the part place that changes the sheet-feeding direction like this.At this moment preferably the roller 58a of auxiliary turning roller 58 is set for identical with roller 54L, the 54R of the roller 54 of turning.
Fig. 9 is expression the 4th embodiment is provided with auxiliary turning roller 58,58 in the both sides of turning roller 54 a block diagram.Identical parts are represented with identical Reference numeral and are omitted explanation.Disposed the auxiliary turning roller 58,58 that rotates freely in axial two outsides of turning roller 54 among Fig. 9.Auxiliary turning roller 58 with in above-mentioned second embodiment, illustrate identical, be that roller 58a is fixed on the S. A. 58b that is supported by bearing 57.Roller 58a is identical with roller 54L, the 54R of turning roller 54.And bearing 57 also be arranged on not shown another of S. A. 58b distolateral come up rotate freely with two supports S. A. 58b.The 4th embodiment S. A. 58b be arranged on the axle 54c of the roller 54 of turning coaxial on, therefore, the roller 58a of auxiliary turning roller 58 is to dispose on coaxial with roller 54L, the 54R of turning roller 54.And the drum that the roller 58a of auxiliary turning roller 58 and the roller 54L of turning roller 54,54R are same diameter.
The auxiliary turning roller 58,58 of both sides is graphic in Fig. 9 to be respectively to have a roller 58a, roller 58a respectively, but also can on one (one-sided) auxiliary turning roller 58 a plurality of roller 58a be set.As illustrating among first embodiment, turning roller 54 obtains propulsive effort from clamping driven roller 55a and is driven in rotation (from gear 55g by idler gear shown in Figure 5 56 to gear 54g transmission propulsive effort), but auxiliary turning roller the 58, the 58th, not driven roller that rotates freely, auxiliary turning roller the 58, the 58th turns round along with the page of conveyance sheet-feeding direction changing unit.
Because except the both sides at turning roller 54 are provided with auxiliary turning roller 58,58, with first embodiment of Fig. 3～Fig. 6 explanation is identical, so the repetitive description thereof will be omitted, but by the wide page of width also being contacted reliably on auxiliary turning roller 58,58 at the auxiliary turning roller 58,58 of two outsides of turning roller 54 configuration, auxiliary carry out the change of sheet-feeding direction, make more stable and can reduce the conveyance load at the sheet-feeding at sheet-feeding direction changing unit place.
As mentioned above,, turning roller 54 materials by softs such as sponge or foamed polyurethanes are constituted, and the driven wheel number of turning roller 54 is more to 55 driven wheel number than pinch roll according to the sheet-feeding auxiliary device of the 4th embodiment image processing system.Therefore, even the conveyance of page is slower than turning roller 54, also can saving the space and do one's utmost to alleviate damage more reliably in the conveyance page page by the distortion of turning roller 54.
By illustrated example first embodiment～the 4th embodiment has been described, these embodiment are not limited thereto.For example be set up in parallel and also can auxiliary turning roller 58 be arranged on the both sides of turning roller 54 when auxiliary turning roller is set, but be arranged on auxiliary turning roller 58 one-sided with turning roller 54.Be under the situation of one-sided benchmark for example, also can in its outside (only one-sided) auxiliary turning roller 58 be set at conveyance reference side configuration turning roller 54 at the sheet-feeding benchmark.
The driving method of the number of rollers of turning roller and diameter, turning roller etc. also can adopt suitable structure.The material of turning roller etc. is an example, also can use suitable material.It is the FRR mode that the separate mode of paper feeding mechanism page separated part is not limited to, and separate mode just can arbitrarily.
Below describe the sheet-feeding auxiliary device of the 5th embodiment image processing system in detail.The image processing system of the image processing system of the 5th embodiment and first embodiment is same structure.Identical structural element is represented with identical Reference numeral and is omitted explanation in the image processing system of the 5th embodiment.The 5th embodiment is except the position relative with the clamping driven voller at sheet-feeding auxiliary device is provided with the sheet-feeding assisted parts that is made of two belt wheels and conveyance band, with first embodiment of above-mentioned explanation is identical, so omit repeat specification different parts is described.
Figure 10 A, Figure 10 B have represented the details of the 5th embodiment sheet-feeding auxiliary device.Figure 10 A is the amplification profile of expression the 5th embodiment sheet-feeding auxiliary device structure.And identical parts are represented with identical Reference numeral and are omitted explanation.Possessing between the vertical carrying channel of FRR separate mode sheet-feeding mechanism that picks up roller 51, supplies with roller 52 and commutate roller 53 and constitute with page, promptly on the crooked road of the sheet-feeding from the page unloading part of page paper feeding device to the vertical carrying channel of page, single face (upper portion) on this bending road disposes conveyance band 65, it hangs on the belt wheel 63,64, wherein, first belt wheel 63 also constitutes first carrying roller of the vertical carrying channel of page; Second belt wheel 64 is installed on the idling gear shaft.Conveyance band 65 is made of conductive material, can prevent the static that produces with the page friction.
Figure 10 B is the amplification profile that the belt wheel of expression the 5th embodiment sheet-feeding auxiliary device is kept out of the way.And identical parts are represented with identical Reference numeral and are omitted explanation.Figure 10 C is the block diagram of expression the 5th embodiment sheet-feeding auxiliary device driving condition.The clamping driven voller 55b that is configured in the vertical carrying channel of page entrance contacts with first belt wheel 63 by this conveyance band 65.Constitute sheet-feeding auxiliary device by these first belt wheels 63, second belt wheel 64 and conveyance band 65, the driver train (drive motor 67 among Figure 10 C) by first belt wheel 63 makes conveyance band 65 rotate to the sheet-feeding direction.
The crooked road of sheet-feeding is to delimit the path by conveyance band 65 with the upside guide surface 17a of paper guide member 17, and vertically carrying channel delimited the path by vertical guide face 17b and vertical conveyance directing plate 66.The sheet-feeding portion of conveyance band 65 is configured to more outstanding to the crooked road of sheet-feeding than the upside guide surface 17a with paper guide member 17, be exactly specifically conveyance band 65 be configured to as upper/lower positions outstanding, this position is: the clip position that connects conveyance band 65 and clamping driven voller 55b and page P front end with the vertical guide face 17b of paper guide member 17 or the straight line of vertical conveyance directing plate 66 contact positions on the upside guide surface 17a position of using paper guide member 17 that intersects.
Make page P not contact and contact with conveyance band 65 with upside guide surface 17a with paper guide member 17 when conveyance page P, by this conveyance band 65, particularly the belt conveyor by second belt wheel, 64 peripheries partly comes conveyance power is appended on the page P.Like this, can make the page front end to the holding part mobile guide of conveyance band 65 by the conveyance power of supplying with roller 52 and conveyance band 65 with clamping driven voller 55b.At this moment, the upright strong more then page P of page just presses with contacting of conveyance band and increases more, can more effectively carry out conveyance power and assist.
Therefore, the propulsive effort of driver train (drive motor 67) transmits to first belt wheel 63 by axle, when the direction rotation of arrow in figure then clamping driven voller 55b just along with the direction rotation of arrow in figure.Second belt wheel 64 also with above-mentioned the same on the page Width configuration a plurality of, being installed into can rotation on common axle.Pressured to the direction relative this axle with above-mentioned A direction (keeping out of the way direction) by described elastomeric element 68.Therefore then make second belt wheel 64 along with the direction of arrow in figure is rotated by conveyance band 65 when 63 rotations of first belt wheel, second belt wheel, 64 sides can be shaken and be given prominence to from the upside guide surface 17a with paper guide member 17 and to keep out of the way simultaneously.
Figure 11 is the block diagram that expression is installed in the sheet-feeding auxiliary device of the 5th embodiment state on the image processing system.Shown in Figure 11 is the initial transport mechanism of the vertical carrying channel of sheet-feeding auxiliary device double as (carrying roller).Figure 11 has omitted the skeleton diagram of indulging conveyance directing plate 66 and clamping driven voller 55b state among Figure 10 A, Figure 10 B, Figure 10 C, gets the face that can see first belt wheel 63 conveyance band 65 nearby in three sheet-feeding auxiliary devices.Present embodiment is distributed in three sheet-feeding auxiliary devices on the page Width, is one situation but comprise number, is arbitrarily, and this integral structure by image processing system decides.
As mentioned above, sheet-feeding auxiliary device according to the 5th embodiment image processing system, be provided with the sheet-feeding assisted parts that constitutes by two belt wheels and conveyance band at the clamping driven voller 55b relative position place that is positioned at the vertical carrying channel inlet of page P, forming belt wheel that the regulation clamping presses by motor-driven, can save the space and do one's utmost to alleviate damage more reliably in the conveyance page P like this page with clamping driven voller 55b.
Below describe the sheet-feeding auxiliary device of the 6th embodiment image processing system in detail.The image processing system of the image processing system of the 6th embodiment and first embodiment is same structure.Identical structural element is represented with identical Reference numeral and is omitted explanation in the image processing system of the 6th embodiment.The 6th embodiment is relative with the 5th embodiment that is provided with the sheet-feeding assisted parts that is made of two belt wheels and conveyance band at clamping driven voller 55b relative position place, being provided with the clamping driven roller 55a that is in relative position with clamping driven voller 55b is the sheet-feeding assisted parts that individually is made of two belt wheels and conveyance band, in addition, with first embodiment of above-mentioned explanation is identical, so omit repeat specification different parts is described.
Promptly being made of the 5th embodiment of sheet-feeding assisted parts first belt wheel 63, second belt wheel 64 and conveyance band 65, is the initial transport mechanism that first belt wheel 63 or its conveyance band portion are also used as vertical carrying channel.On the other hand shown in Figure 12 A, the 6th embodiment is made of the sheet-feeding assisted parts compactly first belt wheel 63, second belt wheel 64 and the conveyance band 65 of path, be the structure that disposes clamping driven roller 55a with the clamping driven voller 55b of vertical carrying channel in couples in addition.Figure 12 A is the amplification profile of expression the 6th embodiment sheet-feeding auxiliary device structure.Figure 12 B is the amplification profile that the belt wheel of expression the 6th embodiment sheet-feeding auxiliary device is kept out of the way.Figure 12 C is the block diagram of expression the 6th embodiment sheet-feeding auxiliary device driving condition.And identical parts are represented with identical Reference numeral and are omitted explanation.
Can be second belt wheel 64 is positioned at position shown in Figure 12 A under stationary state structure, but also can be set up elastic mechanisms such as coil spring or laminated spring 68 (Figure 12 C) and shown in Figure 12 B like that in the structure that is subjected to stipulating that above contact makes second belt wheel 64 keep out of the way to the A direction when pressing.Be exactly specifically shown in Figure 12 C, on the page Width a plurality of clamping driven roller 55a arranged side by side are being fixedly installed on the common axle, relative clamping driven voller 55b is arranged on the common axle similarly, by not shown elastic mechanism the pressured clamping that becomes to stipulate of clamping driven voller 55b and clamping driven roller 55a is pressed.Therefore, the propulsive effort of drive motor 67 transmits to clamping driven roller 55a by axle, when the direction rotation of arrow in figure then clamping driven voller 55b just along with the direction rotation of arrow in figure.
What at this moment illustrate among the side-prominent position of second belt wheel 64 and Figure 12 B is the same, and this position is: the clip position that connects clamping driven roller 55a and clamping driven voller 55b and page P front end with the upside guide surface 17a of paper guide member 17 or the straight line of vertical conveyance directing plate 66 contact positions on the upside guide surface 17a position that intersects.Like this, make page P not contact and contact with conveyance band 65 with upside guide surface 17a with paper guide member 17 when conveyance page P, by this conveyance band 65, particularly the belt conveyor by second belt wheel, 64 peripheries partly comes conveyance power is appended on the page P.Like this, can make the holding part mobile guide of page P front end by the conveyance power of supplying with roller 52 and conveyance band 65 to clamping driven roller 55a and clamping driven voller 55b.The upright strong more then page P of page just presses with contacting of conveyance band and increases more, can more effectively carry out conveyance power and assist.
Figure 13 has represented the section of belt wheel.Figure 13 is the amplification profile that belt wheel and conveyance band have been installed on the belt shaft of the 6th embodiment sheet-feeding auxiliary device.The end that is fixed on the conveyance band of being hung on the belt wheel 63 on the belt shaft 69 65 among Figure 13 is circular, like this, when the conveyance page conveyor belt ends just not can with the page friction, therefore, on page, do not occur by the caused abrasion mark in conveyor belt ends edge.Except the end is with the circular structure, makes belt conveyor pay to the end thickness attenuation tapering outward and also can have same effect.
Figure 14 has represented other structures of belt wheel.Figure 14 is the amplification profile that other structures of belt wheel and conveyance band have been installed on the belt shaft of the 6th embodiment sheet-feeding auxiliary device.Be fixed on first belt wheel 63 on the belt shaft 69 and be with the direction of sheet-feeding direction quadrature on protruding and the structure that the end bore is little of central portion.Therefore, conveyance band 65 by the lateral profile of imitation first belt wheel 63 when the conveyance page end of conveyance band not with the page friction.This structure can also have the effect that prevents the belt conveyor twisting.As shown in figure 15, also can be set at sheet-feeding auxiliary device is independent roller 71, assists by the rotation of roller 71 when upright strong page contacts with this roller 71 and carries out sheet-feeding.Figure 15 is the section-drawing that has used the variation of roller on the sheet-feeding auxiliary device of the 6th embodiment.And identical parts are represented with identical Reference numeral and are omitted explanation.
The structure of having represented conveyance band portion among Figure 16 in detail.Figure 16 is the block diagram of the conveyance band bilge construction of expression the 6th embodiment sheet-feeding auxiliary device.Conveyance band 65 is fixed in first belt wheel 63 on first belt shaft 69 and is fixed on second belt wheel 64 on second belt shaft 70 around hanging over, and by the hand of rotation rotation of first belt wheel 63.At this moment can be set at first belt wheel 63 are plane belt wheels, conveyance band 65 is set at is planar band and transmit driving by wipe contact, but if first belt wheel 63 made toothed belt wheel, the inner face of conveyance band 65 is made toothed belt conveyor made then ideal more of belt conveyor rotation by mutual engaging tooth.When belt shaft can be configured to the rotation of relative carrying device, then also can fix belt shaft and belt wheel and be integral rotation.The surface of conveyance band 65 is made of the EP rubber that is fit to sheet-feeding.If be not only conveyance band 65 the surface but whole constitute by EP rubber then better.
Figure 17 is the block diagram that expression is installed in the sheet-feeding auxiliary device of the 6th embodiment state on the image processing system.On vertical carrying channel, dispose three clamping driven roller 55a among Figure 17, between them, set two sheet-feeding auxiliary devices.According to this structure, the main sheet-feeding power of vertical carrying channel intake section is to be given by clamping driven roller 55a, and conveyance band 65 is to assist conveyance power.The 6th embodiment has disposed two conveyance bands 65 between three places clamping driven roller 55a, be to be in combining and configuring such as two places, page width both sides under two the situation at conveyance band 65.
As mentioned above, sheet-feeding auxiliary device according to the 6th embodiment image processing system, bottom at the clamping driven roller 55a that is positioned at the vertical carrying channel inlet of page P is provided with the sheet-feeding assisted parts that is made of two belt wheels and conveyance band, by elastomeric element the belt wheel of downside to relative pressured with paper guide member side, can save the space and do one's utmost to alleviate damage more reliably in the conveyance page P like this page.
The quantity of conveyance band and also can adopt suitable structure around the diameter of the belt wheel of hanging the conveyance band, the driving method of conveyance band etc.The material of conveyance band etc. is an example, also can use suitable material.It is the FRR mode that the separate mode of paper feeding mechanism page separated part is not limited to, and separate mode just can arbitrarily.Being configured among above-mentioned the 6th embodiment of conveyance band also is by equally spaced being provided with one separately then by the center of conveyance page Width, but also can only be provided with in page Width center, can suitably adopt.The conveyance band is interrupted configuration on the page Width, extends the belt conveyor that is arranged on the whole Width but also can use.
The imaging mode of present embodiment image processing system also is arbitrarily, present embodiment is illustrated the structure and the action of the image processing system of intermediate transfer body mode shown in Figure 1, but for the image processing system with the direct transfer printing mode of paper shown in Figure 180 be not yet depend on technology could.Figure 18 is illustrated in the sectional structure chart that has used on the present embodiment image processing system with the variation summary of the direct transfer printing mode of paper.When the sheet-feeding path is similarly represented with solid line during at this moment shown in Figure 2 being printed on one side, then as the solid line of Figure 18, discharge and use paper to " 6 ".
And in the image processing system of ink-jetting style etc., also can be suitable for.And being not limited to is image processing system, and the change sheet-feeding direction part that has conveyance page functional device at scanner or ADF (original copy auto-conveying apparatus) etc. just can be suitable for present embodiment.
When being useful in the sheet-feeding auxiliary device of top described first embodiment～the 6th embodiment in the image processing system, not only being defined in is sheet-feeding direction changing unit with in paper feeding mechanism page separated part back, but the part of the change sheet-feeding direction after photographic fixing, change the sheet-feeding direction and to row's paper portion discharge page part, change the sheet-feeding direction and just can be suitable for present embodiment to the suitable positions such as parts of two facial guiding to page.
Illustrate as variation particularly the sheet-feeding auxiliary device of present embodiment is useful in example in the scanner unit that possesses original copy automatic feed device.Figure 19 is the vertical profile lateral plan that scanner unit 200 inner structures of present embodiment represented in summary.As shown in figure 19, scanner unit 200 comprises: scanning device body 202; RADF (two sides original copy automatic feed device) 203, it is arranged on the original copy automatic feed ADF of mechanism (original copy automatic feed device) a kind of on scanning device body 202 tops.
Be provided with on the framework 204 of scanning device body 202: employed conveyance original copy read glass when the original copy of placing original copy when reading original image with books original copy read mode was placed glass 205 and read original image with page original copy read mode, i.e. ADF original copy glass 206.
At this, books original copy read mode is meant to read and is placed on the pattern that original copy is placed the original image of state on the glass 205, page original copy read mode is meant by RADF203 to come the original copy automatic paper feed, and by the original copy of automatic paper feed by ADF original copy glass 206 on the time read the pattern of original image.This pattern just can be set by the body operation screen (not shown) that is arranged on framework 204 outsides.
The following describes at page original copy read mode and set the following RADF203 that uses.Under the setting of this page original copy read mode, make first balladeur train 210 and second balladeur train 213 stop at the below of ADF original copy glass 206 and come the original copy of automatic paper feed to be scanned and read by RADF203 as initial point.
Be provided with among the RADF203: document board 220, it is used for when reading original copy with page original copy read mode placing original copy 250; Row's paper portion 221, it is used for the original copy 250 that reads end of a period is discharged; Original copy conveyance path 222, it is communicated with to row's paper portion 221 from document board 220; Upset portion 223, its original copy 250 that when the read mode of two sides, overturns.At this, the two sides read mode is one of page original copy read mode, is meant that by RADF203 the scanning that the original copy 250 that overturns after the positive image reads the reverse side image having been read in original copy 250 automatic paper feeds and scanning reads pattern.
And original copy conveyance path 222 is provided with: be used in conveyance original copy 250 the conveyance cylinder 233 of original copy 250 to 221 conveyances of row's paper portion.ADF original copy glass 206 is located at the below of this conveyance cylinder 233.This conveyance cylinder 233 is driven by stepping motor (not shown).Therefore, be directed on the ADF original copy glass 206 by the driven in rotation of stepping motor by making conveyance cylinder 233 from the original copy 250 of document board 220 to original copy conveyance path 222 paper feedings.
Like this, be placed on the original copy bench board 202a original copy 250 just by pick-up roller 231 by paper feeding page by page, and read the position by conveyance to original copy, i.e. ADF original copy glass 206 places by carrying roller 232 and conveyance cylinder 233.
Be provided with in the upset portion 223: an end and the upset bench board 236 that is communicated with and forms upset road 235 from the bifurcation point 234 of fork midway in original copy conveyance path 222.This upset bench board 236 is provided with the twist rollers 237 that can be driven free positive and negative rotation by paper feeding/upset motor (not shown).The fork pawl 238 that can freely rotate as center of turn with bolster is installed in this upset road 235.This fork pawl 238 opens and closes a upset road 235 by the rotation of bolster for original copy conveyance path 222, so just from conveyance cylinder 233 to the original copy 250 of paper feeder unit 270 conveyances to upset portion 223 with arrange any distribution of paper portion 221.Promptly under the two sides of one of page original copy read mode read mode is set, fork pawl 238 is opened a upset road 235 by the rotation of bolster for original copy conveyance path 222, original copy 250 by 233 conveyances of conveyance cylinder is guided to upset road 235, then the original copy 250 of the positive and negative state that overturn is passed through twist rollers 237 once more to 222 conveyances of original copy conveyance path.
The scanner unit 200 of this present embodiment can be useful in above-mentioned sheet-feeding device and pass through to read behind the position and among the curve A and upset portion between the paper feeder unit 270 of ejection port row paper.
Promptly make conveyance direction curve A jumpy in the conveyance path between conveyance cylinder 233 and paper feeder unit 270 and from the positive and negative upset portion 223 of upset page to the conveyance path the conveyance cylinder 233 in curve B, can form and turning roller 54 is set and hangs with first belt wheel 63 of conveyance band 65 and the structure of second belt wheel 64.And beyond these positions, so long as sheet-feeding direction curve jumpy in the sheet-feeding path, even any position also can be turning roller 54 to be set and to hang with first belt wheel 63 of conveyance band 65 and the structure of second belt wheel 64.
The relevant application of reference: the application is enjoying before in the number of patent application 2005-256594 of Japan number of proposition on September 5th, 2005, before in the number of patent application 2005-270084 of Japan number of proposition on September 16th, 2005, before in the number of patent application 2005-312815 of Japan number of proposition on October 27th, 2005, before in the number of patent application 2006-109911 of Japan number of proposition on April 12nd, 2006, before in the number of patent application 2006-151622 of Japan number of proposition on May 31st, 2006, in the time of before proposed on June 23rd, 2006 the number of patent application 2006-173768 of Japan number benefit of priority, its content income this paper.
Claims (16)
1, a kind of sheet-feeding auxiliary device is characterized in that, it comprises:
Use the paper guide member, it is set at the outside of the turning part of change sheet-feeding direction in the sheet-feeding path;
Turning unit, it is with described relative and be set at inboard, described turning part with the paper guide member;
Drive division, it drives described turning unit rotation.
2, sheet-feeding auxiliary device as claimed in claim 1 is characterized in that, it also possesses the auxiliary turning unit of the non-driving that is set up in parallel with described turning unit.
3, sheet-feeding auxiliary device as claimed in claim 1 is characterized in that, described drive division drives described turning unit rotation with the sheet-feeding speed linear velocity about equally with conveyance.
4, sheet-feeding auxiliary device as claimed in claim 1 is characterized in that, the about 90mm of distance of axial two outside end faces of described turning unit.
5, sheet-feeding auxiliary device as claimed in claim 1, it is characterized in that, it also possesses the roller member that is configured in the downstream of described turning unit on described sheet-feeding path, and described drive division synchronously drives described turning unit and described roller member or stops.
6, sheet-feeding auxiliary device as claimed in claim 5 is characterized in that, described drive division drives described roller member, and drives described turning unit via described roller member.
7, sheet-feeding auxiliary device as claimed in claim 1, it is characterized in that, it also possesses the upstream side that is configured in described turning unit on described sheet-feeding path and links the donor rollers that drives with described turning unit and be fastened on free-wheel clutch on the described turning unit
Described turning unit can be to described driven in rotation direction rotation when being subjected to from the exterior power that makes itself and the equidirectional rotation of driven in rotation direction.
8, sheet-feeding auxiliary device as claimed in claim 1 is characterized in that, described turning unit be with belt conveyor around hanging over the member that forms at least two belt wheels,
Described belt conveyor is fixed interior all sides in described sheet-feeding path with the relative face of paper guide member with described.
9, sheet-feeding auxiliary device as claimed in claim 8 is characterized in that, the described belt wheel double as of sheet-feeding path downstream side is positioned at right one of the initial carrying roller of described sheet-feeding path downstream side.
10, sheet-feeding auxiliary device as claimed in claim 8 is characterized in that, it also possesses the elastomeric element of the described belt wheel that acts on described sheet-feeding path upstream side,
The described belt wheel of described sheet-feeding path upstream side can be resisted described elastomeric element and retreat from described sheet-feeding path.
11, sheet-feeding auxiliary device as claimed in claim 8 is characterized in that, described drive division drives the described belt wheel rotation of described sheet-feeding path downstream side.
12, sheet-feeding auxiliary device as claimed in claim 1 is characterized in that, described turning unit is provided with a plurality of on the page Width intermittently.
13, sheet-feeding auxiliary device as claimed in claim 1 is characterized in that, it is right at the roller that described described sheet-feeding path downstream with the paper guide member also possesses clamping conveyance page,
The auxiliary page of described turning unit to described roller to moving.
14, a kind of image processing system is characterized in that,
It possesses the sheet-feeding auxiliary device that is configured in all sides in the sheet-feeding path,
Described sheet-feeding auxiliary device comprises:
Use the paper guide member, it is set at the outside of the turning part of change sheet-feeding direction in the sheet-feeding path;
Turning unit, it is with described relative and be set at inboard, described turning part with the paper guide member;
Drive division, it drives described turning unit rotation.
15, image processing system as claimed in claim 14, it is characterized in that described sheet-feeding auxiliary device is set in the described sheet-feeding path, extend on the path that is provided with on the path of the page upset portion of upset page pros and cons or from described page upset portion.
16, a kind of image read-out is characterized in that, it comprises:
Mounting portion, its mounting original copy page;
The original copy supply unit, its described original copy page that is positioned in the described mounting portion carries out conveyance to the sheet-feeding path;
Reading part, its described original copy page of conveyance on described sheet-feeding path reads as image;
Upset portion, the pros and cons of its upset described original copy page of conveyance in described sheet-feeding path;
Use the paper guide member, it is set at the outside, turning part of the described original copy sheet-feeding direction of change in the described sheet-feeding path;
Turning unit, it is with described relative and be set at inboard, described turning part with the paper guide member;
Drive division, it drives described turning unit rotation.
Applications Claiming Priority (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005256594 | 2005-09-05 | ||
| JP256594/05 | 2005-09-05 | ||
| JP270084/05 | 2005-09-16 | ||
| JP312815/05 | 2005-10-27 | ||
| JP109911/06 | 2006-04-12 | ||
| JP151622/06 | 2006-05-31 | ||
| JP173768/06 | 2006-06-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1944208A true CN1944208A (en) | 2007-04-11 |
Family
ID=38043901
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610128593 Pending CN1944208A (en) | 2005-09-05 | 2006-09-05 | Sheet-feeding auxiliary device, image forming device, and image reading device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1944208A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101850910A (en) * | 2009-03-31 | 2010-10-06 | 兄弟工业株式会社 | image processing device |
| US8542416B2 (en) | 2009-03-31 | 2013-09-24 | Brother Kogyo Kabushiki Kaisha | Image processing apparatus |
| CN102164834B (en) * | 2008-09-24 | 2014-03-19 | 伊斯曼柯达公司 | Device and method for the alignment of sheets |
| CN106542359A (en) * | 2015-09-17 | 2017-03-29 | 株式会社东芝 | Image processing system |
-
2006
- 2006-09-05 CN CN 200610128593 patent/CN1944208A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102164834B (en) * | 2008-09-24 | 2014-03-19 | 伊斯曼柯达公司 | Device and method for the alignment of sheets |
| CN101850910A (en) * | 2009-03-31 | 2010-10-06 | 兄弟工业株式会社 | image processing device |
| US8531741B2 (en) | 2009-03-31 | 2013-09-10 | Brother Kogyo Kabushiki Kaisha | Image processing apparatus |
| US8542415B2 (en) | 2009-03-31 | 2013-09-24 | Brother Kogyo Kabushiki Kaisha | Image processing apparatus |
| US8542416B2 (en) | 2009-03-31 | 2013-09-24 | Brother Kogyo Kabushiki Kaisha | Image processing apparatus |
| CN106542359A (en) * | 2015-09-17 | 2017-03-29 | 株式会社东芝 | Image processing system |
| CN106542359B (en) * | 2015-09-17 | 2018-06-12 | 株式会社东芝 | Image forming apparatus |
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Application publication date: 20070411 |