CN101234564B - Image forming device - Google Patents
Image forming device Download PDFInfo
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- CN101234564B CN101234564B CN2008100047604A CN200810004760A CN101234564B CN 101234564 B CN101234564 B CN 101234564B CN 2008100047604 A CN2008100047604 A CN 2008100047604A CN 200810004760 A CN200810004760 A CN 200810004760A CN 101234564 B CN101234564 B CN 101234564B
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- supply unit
- eccentric cam
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- image processing
- tape deck
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Abstract
The invention provides an image forming apparatus, comprising: a record apparatus printing at a record medium; a transmitting unit configured under the record apparatus and opposite to the record apparatus, for transmitting the record medium; and a lifting apparatus for lifting the transmitting unit. Wherein, the lifting apparatus comprises an eccentric cam whose rotating axis deviates to left. The transmitting unit has a junction surface in junction with the periphery of the eccentric cam and being able to lift through the rotation of the eccentric cam. Therefore, no over capacity is produced in the image apparatus for the transmitting unit to lift stably.
Description
Technical field
The present invention relates to printer and duplicator is the image processing system of representative.
Background technology
In image processing system, particularly popularized in recent years as the ink-jet printer of household printer.Ink-jet printer is from a plurality of nozzle ejection inks that record head had as tape deck, to the image processing system of printing as the enforcements such as paper of recording medium.Because ink-jet printer is little and cheap and have good quiet performance, is therefore popularized, each producer provides different types of machines recently.In addition, developed the corresponding ink-jet printer that can carry out the flying print more than tens in recent years again at the roughly the same record head (line style head) of office's width perpendicular to sheet transport direction that use, that have length and paper and per minute, but the kind negligible amounts of this type.
The open communique spy of Japan Patent opens an example that discloses above-mentioned ink-jet printer for 2006-206309 number.Ink-jet printer comprises as its main inscape: the platen portion (platenunit) (supply unit) and the paper discharge tray of recording media disk (paper feeding cassette), image record portion (tape deck), conduct band conveying device.
As the single-sheet stationery of recording medium or OHP thin slice etc., many leave in the recording media disk stackedly, and deliver to platen portion by sheet feed section.Platen portion has the cycloconveyor belt that is used to carry paper, and the paper of sending from recording media disk is placed on this above conveyer belt, roughly is flatly and is carried.Image record portion is configured in the top of platen portion and is relative with it, comprises the ink discharge device to the paper ink-jet.Image record portion has the ink spray group corresponding to for example black, blue or green, pinkish red, yellow multiple color ink.The ink spray group is extended on main scanning direction, promptly with the rectangular paper width of paper feeding direction on extend.The ink spray group sprays ink from a plurality of nozzles to gravity direction, promptly towards vertically downward direction ejection ink.
Paper is carried in platen portion, and in this course of conveying, the ink that the ink spray group of the image record portion by the top is sprayed prints.Spray the ink of multiple color successively to paper, form coloured image.The paper of finishing printing is delivered directly on the paper discharge tray discharges.
At this, the ink-jet printer with above-mentioned formation is often added a cover on nozzle generally for problems such as drying, obstruction take place the nozzle that prevents image record portion ejection ink.And in order to carry out the adding a cover operation or the paperboard of generation when paper is carried is handled etc. of this nozzle, ink-jet printer need have the lowering or hoisting gear that makes platen portion (supply unit) lifting.
In the open communique spy of Japan Patent opens 2006-206309 number disclosed device, have as the platen drive division (platen driver) that makes the lowering or hoisting gear of platen portion lifting.This platen drive division has from supporting four arms that axial region extends, and the bottom surface by its front end brace table board also rotates arm, and platen portion is moved up and down.
Yet the lowering or hoisting gear of such platen portion is because arm extends longly from supporting axial region, so drive units such as arm itself, support axial region, motor may bear excessive moment of torsion.So just might cause distortion, breakage of arm or motor etc.Therefore, can produce the problem of the lifetime of picture quality reduction or device.
Summary of the invention
The objective of the invention is to,, can not produce excess load, and can make supply unit lifting reposefully having the supply unit of carrying paper and making in the image processing system of lowering or hoisting gear of this supply unit lifting.
In order to realize described purpose, image processing system of the present invention comprises: tape deck prints on recording medium; Supply unit, relative with described tape deck and be configured in the below of this tape deck, carry described recording medium; And lowering or hoisting gear, make described supply unit lifting; Wherein, described lowering or hoisting gear comprises the biasing of self pivot center and is configured in the eccentric cam of described supply unit below, and described supply unit has the bearing surface with the side face butt of described eccentric cam, and the lifting by the rotation of described eccentric cam.
Constitute according to this,, can make eccentric cam itself, its axial region and the size of the loads that drive unit bore such as motor of eccentric cam rotation is changed gradually reposefully owing to make the supply unit lifting by the rotation of eccentric cam.Can suppress lowering or hoisting gear produces excess load suddenly when starting situation like this.Therefore, can prevent that eccentric cam and motor from producing distortion or damaged.Its result can provide and can not produce excess load in lowering or hoisting gear, can make the supply unit lifting reposefully and improve the endurance life of printer, the image processing system that can carry out high-quality image formation.
In described image processing system preferably: described eccentric cam has a plurality of revolving members, and at least a portion of described revolving member is outstanding laterally from the side face of this eccentric cam, and with the bearing surface butt of described supply unit.
In addition, in described image processing system, preferably also comprise: the align member that described supply unit is positioned with respect to described tape deck; And the guiding mechanism that guides described supply unit to move along above-below direction.
According to above-mentioned formation, can alleviate the friction of the contact portion of eccentric cam and supply unit, the wearing and tearing of this contact portion can be reduced, and the lifting of supply unit can be carried out reposefully.Therefore, the endurance life of image processing system can be improved, the stable descending operation of supply unit can be carried out.And, need not masterful technique, the parastate of promptly can hold the record fully device and supply unit.And,, when making the supply unit lifting, can stop supply unit to produce horizontal position skew by lowering or hoisting gear owing to have guiding mechanism.Therefore, can improve the positioning accuracy of supply unit, and the prevention recording medium stops up with respect to tape deck.
Description of drawings
Fig. 1 is the summary master pseudosection of the related ink-jet printer of first embodiment of the invention.
Fig. 2 is the stereogram of related supply unit of first embodiment and lowering or hoisting gear.
Fig. 3 A～3C is the stereogram of the align member of supply unit shown in Figure 2.
Fig. 4 is the stereogram of the eccentric cam of lowering or hoisting gear shown in Figure 2.
Fig. 5 is expression lowering or hoisting gear shown in Figure 2 and local enlarged front view on every side thereof.
Fig. 6～Figure 10 is expression lowering or hoisting gear shown in Figure 2 and local enlarged front view on every side thereof, represents the state that supply unit descends gradually successively.
Figure 11 is the summary master pseudosection of the related ink-jet printer of second embodiment of the invention.
Figure 12 is the stereogram of related supply unit of second embodiment and lowering or hoisting gear.
Figure 13 is expression guiding mechanism and partial perspective view on every side thereof.
Figure 14 is expression lowering or hoisting gear shown in Figure 12 and local enlarged front view on every side thereof.
Figure 15～Figure 18 is expression lowering or hoisting gear shown in Figure 12 and local enlarged front view on every side thereof, represents the state that supply unit descends gradually successively.
Figure 19 is related guiding mechanism of other embodiments of expression and partial perspective view on every side thereof.
The specific embodiment
With reference to the accompanying drawings embodiments of the present invention are elaborated below.
First embodiment
At first, for the related image processing system of embodiment of the present invention, its structure is roughly illustrated, and the image output action is described with Fig. 1.Fig. 1 is the summary master pseudosection of the related ink-jet printer 1 of expression first embodiment of the invention.
Printer 1 comprises: tape deck 20, be contained in the inside of apparatus main body 2 with frame structure, and print color black image to paper P (example of recording medium); Supply unit 30, and configuration relative with tape deck 20 are thereunder carried paper P; Lowering or hoisting gear 40 makes supply unit 30 liftings.In addition, printer 1 also has: paper feeding cassette 3, paper feed 4, paper-feeding passage 5, alignment roller 6, drying device 7, distributing roller 8, outlet 9 and paper discharge tray 10.
Paper-feeding passage 5 is to be used for paper P is transported to the passage of tape deck 20 and supply unit 30 from paper feeding cassette 3, disposes alignment roller 6 in its way.Paper P sends from paper feeding cassette 3, arrives alignment roller 6 by paper-feeding passage 5.Wandering off of 6 couples of paper P of alignment roller corrected, and infers that simultaneously tape deck 20 carries out the opportunity of ink-jet action, and paper P is sent to supply unit 30.
Corresponding versicolor ink jet head 21 on the suitable position in apparatus main body 2, is equipped with four not shown ink cartridges.Versicolor ink, is suitably added among ink jet head 21K, 21C, 21M, the 21Y respectively by supply pipe (not shown) from these ink cartridges.
Each ink jet head 21K of tape deck 20,21C, 21M, 21Y are according to the information of the view data that receives from outer computer, to being placed on conveyer belt 31 lip-deep paper P ejection inks.Spray versicolor ink successively from each ink jet head 21K, 21C, 21M, 21Y opportunity by the rotation of conveyer belt 31 and in regulation, thereby be positioned at the color black image that formation (printing) ink black, blue or green, pinkish red, Huang Si kind color coincides on the conveyer belt 31 lip-deep paper P.
In addition, when tape deck 20 begins to print again after stopping for a long time, become big ink from the interior viscosity of whole ink nozzles (not shown) jetting nozzle of each ink jet head 21K, 21C, 21M, 21Y, perhaps become big ink, the printing action after preparing thus in the intermittent time of printing action viscosity in the ink nozzle jetting nozzle of ink ejection amount below setting.At this moment, lid (not shown) is connected on each ink jet head 21, makes ink to the lid ejection.Be sprayed on the discarded ink in this lid, after making this lid leave each ink jet head 21,, deliver in the discarded ink cartridge (not shown) that is arranged on supply unit 30 back sides one side-lower and deposit with pump (not shown) sucking-off.
In order to make supply unit 30 liftings, lowering or hoisting gear 40 is configured in the below of this supply unit 30.Lowering or hoisting gear 40 is producing dry for the ink nozzle that prevents tape deck 20 or is stopping up and when nozzle added a cover, when perhaps the paperboard that takes place is handled, make supply unit 30 liftings on to conveyer belt 31.
A side has distributing roller 8, outlet 9 and paper discharge tray 10 in the downstream of drying device 7.Paper P makes ink dried after the printing by drying device 7, and carries left by distributing roller 8, is discharged to through outlet 9 in the paper discharge tray 10 outside the left surface that is arranged on apparatus main body 2.Promptly be discharged to the printer outside.
Below by Fig. 1 and Fig. 2～Fig. 5, the detailed formation of lowering or hoisting gear 40 is described.Fig. 2 is the stereogram of supply unit 30 and lowering or hoisting gear 40, and Fig. 3 A～3C is the stereogram of the supporting member 50 of supply unit 30, and Fig. 4 is the stereogram of eccentric cam 41, and Fig. 5 is expression lowering or hoisting gear 40 and local enlarged front view on every side thereof.In addition, Fig. 1 and Fig. 5 represent the state after supply unit 30 rises by lowering or hoisting gear 40, the state after Fig. 2 represents to descend.
At first, before the explanation of carrying out lowering or hoisting gear 40, the formation of supply unit 30 is described.As depicted in figs. 1 and 2, the outward appearance of supply unit 30 is box-shaped, roughly is horizontal arrangement in the inside of apparatus main body 2.Conveyer belt 31 is contained between first side plate 301 and second side plate 302 of facing configuration mutually, and the upper surface of supply unit 30 is showed out in the paper feeding of conveyer belt 31.Be configured in paper feeding direction upstream one side and downstream one side of first side plate 301 and second side plate 302 respectively along two rollers 32 of paper width extension.In addition, the top panel that the top between first side plate 301 and second side plate 302 has support belt 31 has lower panel in the bottom, and supply unit 30 has the frame shape of box-shaped thus.
Fig. 3 A, 3B, 3C are respectively the stereogram that supporting member 50 is seen from front, back, side.In addition, supporting member 50 shown in Fig. 3 A～3C and shown in Figure 2 comparing are drawn shortlyer in order to illustrate the left and right sides width that makes things convenient for sliding part 52.
The fixed part 51 of supporting member 50 comprises main part 510, sliding-contact plate 511 and pin 51a.Main part 510 has the flat top 510a that pin 51a uprightly is set, the flat rear surface 510b that constitutes the installed surface of installing to supply unit 30.Sliding-contact plate 511 is from the outwards outstanding flat part of two sidewalls of main part 510, and with sliding part 52 (wrist 52b) sliding-contact.On this sliding-contact plate 511, be provided with pair of right and left along the linearly extended otch 55 of above-below direction.Pin 51a is fixed on the main part 510, and is generally perpendicularly outstanding from end face 510a.Fixed part 51 is fixedly mounted on first side plate 301 or second side plate 302 by screw 512, and its back side 510b is extended along the outer surface of first side plate 301 or second side plate 302.
Sliding part 52 comprises main part 52a that is positioned at fixed part 51 belows and a pair of wrist 52b that uprightly is provided with upward from this main part 52a.The lower surface of main part 52a is the bearing surface 52c of the side face of the eccentric cam 41 narrated later of butt.Wrist 52b has the flat part with 511 sliding-contacts of sliding-contact plate, the outstanding guide finger 56 that is provided with on this flat part.Guide finger 56 embeds otch 55 and guided by it.
As the back was narrated, the lower surface of the sliding part 52 of the supporting member 50 of supply unit 30 (bearing surface 52c) supported by lowering or hoisting gear 40.If upwards push sliding part 52, spring 53 just produces stronger elastic force, and making fixed part 51 is that supply unit 30 raises.When supply unit 30 raise, in its terminal stage, the upper surface of pin 51a contacted with the bottom surface of tape deck 20, has so just determined the position of supply unit 30 with respect to tape deck 20.Its result, bottom surface and conveyer belt 31 upper surfaces at tape deck 20 promptly form slight gap between the paper feeding face.
At this, final four pin 51a must all be connected on the bottom surface of tape deck 20, but when vertical motion, be connected to the pin 51a on the bottom surface of tape deck 20 at first, till can producing butt at pin 51a up to other during, the upwards pressure of pushing of having concentrated lowering or hoisting gear 40 to be produced.The local so upwards pressure of pushing can make supply unit 30 produce distortion.In order not cause such distortion, also can consider to improve the rigidity of supply unit 30, cost improves, complex structure but this can cause.So in the present embodiment, adopt therebetween to establish spring 53, to cushion the upwards pressure of pushing of above-mentioned part.
If four pin 51a all are connected on the bottom surface of tape deck 20, then supply unit 30 and tape deck 20 complete keeping parallelism states.Therefore, need not use knack to finely tune, the paper feeding face of each ink jet head 21K, 21C, 21M, 21Y and supply unit 30 is the keeping parallelism state fully.In addition, even be subjected under the situation of bigger vibration, owing to spring 53 works as padded coaming, so no matter when can keep above-mentioned parastate at printers 1 such as transportation or earthquakes.
According to Fig. 4 lowering or hoisting gear 40 is described below.Lowering or hoisting gear 40 is configured in the below of aforesaid supply unit 30.The drive motor (not shown) that lowering or hoisting gear 40 has eccentric cam 41, this eccentric cam 41 is rotated.
The position of eccentric cam 41 four set supporting members 50 on corresponding to first side plate 301 of supply unit 30 and second side plate 302 is provided with four altogether.The side face of eccentric cam 41 is from lower surface (bearing surface 52c) butt of the sliding part 52 of below and supporting member 50.
As shown in Figure 4, eccentric cam 41 comprises a pair of holding plate 411,412 and rotate five the bearing 43a～43e (revolving member) that kept freely between this holding plate 411,412.Holding plate 411,412 has peripheral edge portion 411a, the 412a that curvature changes along with the rotation of axial region 42.The curve of this peripheral edge portion 411a, 412a has determined the configuration mode of bearing 43a～43e.Promptly by apart from the equidistant back shaft 431 that is positioned at the inboard and is supported by holding plate 411,412 of each peripheral edge portion 411a, 412a, each bearing 43a～43e rotates and is supported freely.In addition, the axis of back shaft 431 is parallel with the axis of axial region 42.
The part of the bearing outer peripheral face of each bearing 43a～43e is outstanding laterally from peripheral edge portion 411a, the 412a of holding plate 411,412 respectively.The line at outstanding position of each bearing outer peripheral face and the curve approximate match of peripheral edge portion 411a, 412a constitute cam surface thus.As Fig. 5～shown in Figure 10, the bearing surface 52c butt of the ledge of such bearing 43a～43e and the sliding part 52 of supporting member 50.
Bearing 43a～43e is arranged in order setting along the direction away from the pivot center of axial region 42 gradually.Promptly at the front end of eccentric cam 41, pivot center position configuration clutch shaft bearing 43a farthest apart from axial region 42 centers, comparing with it near the configuration second bearing 43b on the position of pivot center, next coming in order dispose the 3rd bearing 43c, the 4th bearing 43d, dispose the 5th bearing 43e at the nearest position of the pivot center of distance eccentric cam 41.
Below by Fig. 5～Figure 10, utilize the lifting action of the eccentric cam 41 of lowering or hoisting gear 40 to describe to supply unit 30.Fig. 6 is expression lowering or hoisting gear 40 identical with Fig. 5 and local enlarged front view on every side thereof, and it represents the state that supply unit 30 descends a little from the state of Fig. 5.Fig. 7～Figure 10 also is identical lowering or hoisting gear 40 of expression and local enlarged front view on every side thereof, represents the state that supply unit 30 descends gradually successively.Fig. 5 represents to make supply unit 30 rise to the state of high-order bit (upper surface of the pin 51a of the supporting member 50 of supply unit 30 touches the position of tape deck 20 bottom surfaces) by lowering or hoisting gear 40 in addition.
Under common print state, as shown in Figure 5, the control part of printer 1 (diagram omit) drives lowering or hoisting gear 40, and eccentric cam 41 is rotated, thereby makes supply unit 30 move to high-order bit.Under this state, between the upper surface of the bottom surface of tape deck 20 and supply unit 30, be formed with and be fit to the gap (with reference to Fig. 1) of printing.Promptly form when being adapted at using conveyer belt 31 to carry paper P, make ink carry out the gap that image forms from ink jet head 21K, 21C, 21M, 21Y ejection and on paper P surface.Be positioned in the eccentric cam 41 this moment apart from the pivot center at the axial region 42 centers clutch shaft bearing 43a at position farthest, be connected to from the below on the bearing surface 52c of sliding part 52 of supporting member 50 of supply unit 30.
In addition, produce drying, obstruction etc. and when on this nozzle, adding a cover at ink nozzle for the ink jet head 21K, the 21C that prevent tape deck 20,21M, 21Y, when perhaps the paperboard that produces on to conveyer belt 31 was handled, supply unit 30 descended by lowering or hoisting gear 40.
At this moment, by the motor of described control part driving lowering or hoisting gear 40, eccentric cam 41 is rotated.When supply unit 30 is descended, be positioned at the eccentric cam 41 of paper feeding direction (with reference to the hollow arrow of Fig. 2) upstream one side of supply unit 30, see that from the front eccentric cam 41 that is positioned at downstream one side rotates along clockwise direction along counterclockwise rotating.Promptly, each eccentric cam 41 is rotated, so that holding plate 411,412 is transformed into the axial region 42 1 sides state relative with bearing surface 52c of peripheral edge portion 411a, 412a gradually from jag one side of peripheral edge portion 411a, 412a (with reference to Fig. 4) state relative with bearing surface 52c.Along with the rotation of eccentric cam 41, clutch shaft bearing 43a rotates on bearing surface 52c, and eccentric cam 41 slips in the horizontal plane of bearing surface 52c and moves, thereby makes supply unit 30 begin to descend.
Be positioned at the operating state of the eccentric cam 41 of paper feeding direction downstream one side in Fig. 5～Figure 10 presentation graphs 2.In order to make supply unit 30 begin decline and eccentric cam 41 is rotated along clockwise direction from the state of Fig. 5, as shown in Figure 6, after clutch shaft bearing 43a, compare the second bearing 43b at the position that is positioned at more close pivot center with clutch shaft bearing 43a, with the bearing surface 52c butt of sliding part 52, promptly with the bottom surface butt of supply unit 30.Thus, adjacent two bearing 43a, 43b have be connected to simultaneously on supply unit 30 bottom surfaces during.
If eccentric cam 41 further rotates, then as shown in Figure 7, the second bearing 43b is connected to separately on the bottom surface (bearing surface 52c) of supply unit 30, and supports supply unit 30.
If eccentric cam 41 is proceeded to rotate, then as shown in Figure 8, the 3rd bearing 43c is connected on supply unit 30 bottom surfaces, and supports supply unit 30, and then as shown in Figure 9, the 4th bearing 43d is connected on supply unit 30 bottom surfaces, and supports supply unit 30.In addition, identical with the situation of the above-mentioned first and second bearing 43a, 43b, these two adjacent bearings of the 3rd bearing 43c, the 4th bearing 43d also have be connected to simultaneously on supply unit 30 bottom surfaces during.
As shown in figure 10,, be configured in the 5th bearing 43e on the nearest position of the pivot center of eccentric cam 41, be connected to separately on supply unit 30 bottom surfaces, and support supply unit 30 in the final stage that supply unit 30 descends.Thus, between tape deck 20 and supply unit 30, form working space than broad.
After this, the position when making supply unit 30 turn back to common printing by making eccentric cam shown in Figure 10 41 along the counter clockwise direction backward rotation, can make supply unit 30 rise to state shown in Figure 5.
As mentioned above, the related printer 1 of first embodiment have the tape deck 20 that on paper P, prints, and configuration relative with this tape deck 20 thereunder and carry paper P supply unit 30, make the lowering or hoisting gear 40 of these supply unit 30 liftings.Lowering or hoisting gear 40 has the eccentric cam 41 of pivot center biasing, and makes the side face butt supply unit 30 (the bearing surface 52c of the sliding part 52 of supporting member 50) of this eccentric cam 41, and the rotation by eccentric cam 41 makes supply unit 30 liftings.
Therefore, can make eccentric cam 41 itself, its axial region 42 and the size of the loads that drive unit bore such as motor that eccentric cam 41 rotates is changed gradually reposefully.Can suppress lowering or hoisting gear 40 produces excess load suddenly when starting situation like this.Therefore, can prevent that eccentric cam 41 and motor from producing distortion, breakage.Its result can not produce excess load in lowering or hoisting gear 40, can make supply unit 30 liftings reposefully, improves the endurance life of printer 1, and carries out high-quality image formation.
In addition, eccentric cam 41 have at least a portion from its side face outstanding laterally and with a plurality of revolving members of supply unit 30 butts, i.e. bearing 43a～43e.Therefore, can alleviate the friction of the contact portion of eccentric cam 41 and supply unit 30.Thus, the wearing and tearing of the contact portion of eccentric cam 41 and supply unit 30 can be alleviated, and the lifting of supply unit 30 can be carried out reposefully.
In addition, because a plurality of bearing 43a～43e are arranged in order configuration with the form away from the pivot center of eccentric cam 41 gradually, so can bearing 43a～43e is connected on the supply unit 30 successively with the rotation of eccentric cam 41.
Can alleviate the friction of the contact portion of eccentric cam 41 and supply unit 30 like this, can make simultaneously eccentric cam 41 itself, its axial region 42 and the size of the loads that drive unit bore such as motor that eccentric cam rotates is changed gradually reposefully.Therefore, can further improve the endurance life of printer 1 and the stability that improves the lifting action of supply unit 30.
And, in the rotation process of eccentric cam 41, among a plurality of bearing 43a～43e two adjacent bearings have be connected to simultaneously on the supply unit 30 during.Therefore, can form at least one bearing and necessarily be connected to state on the supply unit 30.So just can prevent the directly holding plate 411,412 of contact eccentric cam 41 of supply unit 30.Therefore, when making supply unit 30 liftings, can carry out lifting action more reposefully.Its result, the endurance life that can further improve printer 1, and the quality of the raising image that forms.
Second embodiment
Figure 11 is the summary master pseudosection of the related ink-jet printer 1A of second embodiment of the invention.The difference of itself and first embodiment is to have a guiding mechanism 60, and this is in order to prevent that when supply unit 30 liftings, supply unit 30 produces horizontal position skew and establishes.In this Figure 11 and Figure 12～19, with the identical Reference numeral of part employing identical in the Fig. 1 that illustrates previously～10, and omission or simplified illustration.
Figure 12 has the supply unit 30 of guiding mechanism 60 and the stereogram of lowering or hoisting gear 40.
Figure 13 is expression guiding mechanism 60 and partial perspective view on every side thereof.In addition, the gear mechanism 44 of in Figure 12, also having represented in Fig. 2, to omit the axial region 42 length directions part of the eccentric cam of representing 41 and rotatory force having been passed to axial region 42.
Guiding mechanism 60 is that guiding supply unit 30 is along mechanism that above-below direction moves.Guiding mechanism 60 is configured between two place's eccentric cams 41 in supply unit 30 fronts respectively and between two place's eccentric cams 41 at the back side.The pin bearing part 62 (ways) that guiding mechanism 60 has guide finger 61 (sliding component) and engages with this guide finger 61.
Shown in Figure 12,13, guide finger 61 is fixed on first side plate 301 (with second side plate 302 at the back side) in the front of supply unit 30 and goes up (though the back side one side is not shown, guide finger 61 is fixed on second side plate 302 too) by L shaped fixed component 61a.Guide finger 61 is cylindrical, extends along vertical direction downwards.
Below by Figure 14～Figure 18, the lifting action of the related supply unit 30 of second embodiment is described.Figure 14 is expression lowering or hoisting gear 40 and guiding mechanism 60 and local enlarged front view on every side thereof.Figure 15～Figure 18 is expression lowering or hoisting gear 40 and guiding mechanism 60 and local enlarged front view on every side thereof too, represents the state that supply unit 30 descends gradually successively.In addition, Figure 14 represents to make supply unit 30 rise to the state of high-order bit (upper surface of the pin 51a of the supporting member 50 of supply unit 30 touches the position of tape deck 20 bottom surfaces) by lowering or hoisting gear 40.In addition, in this second embodiment, expression eccentric cam 41 has the example of four bearing 43a～43d.
Under common print state, as shown in figure 14, the control part of printer 1 (diagram omit) makes diagram abridged motor action, drives axial regions 42 by gear mechanism 44, and eccentric cam 41 is rotated, thereby makes supply unit 30 move to high-order bit.Under this state, form the gap (with reference to Figure 11) that is fit to printing between the upper surface of the bottom surface of tape deck 20 and supply unit 30.Be configured in the eccentric cam 41 this moment apart from the pivot center at the axial region 42 centers clutch shaft bearing 43a at position farthest, be connected to from the below on the bearing surface 52c of sliding part 52 of the supporting member 50 that supply unit 30 had.
When supply unit 30 is descended,, eccentric cam 41 is rotated by the motor of described control part driving lowering or hoisting gear 40.Under the situation that supply unit 30 is descended, be positioned at the eccentric cam 41 of paper feeding direction upstream one side of supply unit 30, see that from the front eccentric cam 41 that is positioned at downstream one side rotates along clockwise direction along counterclockwise rotating.Along with the rotation of eccentric cam 41, clutch shaft bearing 43a rotates on bearing surface 52c, and eccentric cam 41 slips in the horizontal plane of bearing surface 52c and moves, thereby makes supply unit 30 begin to descend.
Figure 14～Figure 18 represents the motion state of Figure 12 meta in the eccentric cam 41 of paper feeding direction upstream one side.In order to make supply unit 30 begin decline and make eccentric cam 41 along counterclockwise rotating from the state of Figure 14, as shown in figure 15, after clutch shaft bearing 43a, compare the second bearing 43b at the position that is positioned at more close pivot center with clutch shaft bearing 43a, with the bearing surface 52c butt of sliding part 52, promptly with the bottom surface butt of supply unit 30.Thus, adjacent two bearing 43a, 43b have be connected to simultaneously on supply unit 30 bottom surfaces during.
The decline of supply unit 30, promptly above-below direction is mobile, by guiding mechanism 60 channeling conducts.That is, by the pilot hole 62a that pin bearing part 62 has, guide finger 61 is guided and is descended.Therefore, supply unit 30 moves to vertical lower by the effect of guiding mechanism 60, and in the horizontal direction can the occurrence positions skew.
In addition, if eccentric cam 41 further rotates, then as shown in figure 16, the second bearing 43b is connected to separately on the bottom surface (bearing surface 52c) of supply unit 30, and supports supply unit 30.
Then, eccentric cam 41 is rotated further, and then as shown in figure 17, the 3rd bearing 43c is connected on the bottom surface of supply unit 30, and supports supply unit 30.In addition, identical with the situation of the described first and second bearing 43a, 43b, adjacent the second and the 3rd bearing 43b, 43c also have be connected to simultaneously on supply unit 30 bottom surfaces during.
If eccentric cam 41 is rotated further, supply unit 30 descends and arrives terminal stages, then as shown in figure 18, is configured in the 4th bearing 43d on the nearest position of the pivot center of eccentric cam 41, be connected to separately on the bottom surface of supply unit 30, and support supply unit 30.The decline of supply unit 30 finishes like this, forms the working space than broad between tape deck 20 and supply unit 30.
After this, the position when making supply unit 30 turn back to common printing by making eccentric cam shown in Figure 180 41 along the clockwise direction backward rotation, can make supply unit 30 rise to state shown in Figure 14.At this moment, the effect of supply unit 30 by guiding mechanism 60 can vertical lifting, and in the horizontal direction can the occurrence positions skew.
Like this, according to second embodiment,, when making supply unit 30 liftings, can stop supply unit 30 to produce horizontal position skew by lowering or hoisting gear 40 owing on the formation of first embodiment, also increased guiding mechanism 60.Therefore, a kind of like this printer 1 can be provided, that is, can make supply unit 30 lifting and can not produce lateral shift reposefully, thereby can improve positioning accuracy, the prevention paperboard of supply unit 30, and can carry out high-quality image formation with respect to tape deck 20.
In addition, because guiding mechanism 60 has the guide finger 61 as sliding component that roughly extends along vertical direction, the pin bearing part 62 as ways that engages with this guide finger 61, so constitute by simple, just can make supply unit 30 can not produce the position skew in the horizontal direction along the vertical direction lifting.Can carry out accurate in locating more to supply unit 30 like this with respect to tape deck 20.
Promptly, can avoid producing because of supply unit 30 and produce bigger skew in the horizontal direction, make the pin 51a on the supporting member 50 that is arranged on supply unit 30, can not insert in the corresponding embedded hole that is arranged on the tape deck 20 with it, thereby the accurate in locating that can't carry out with respect to tape deck 20 supply unit 30 causes producing the problem of fault in forming image.The suitable paper feeding that therefore, can realize further improving picture quality, prevent to produce paperboard.
Because guide finger 61 is cylindrical, and pin bearing part 62 has the hole that cylindrical guide pin 61 can be chimeric, i.e. pilot hole 62a is so can obtain guiding mechanism 60 in light weight and that intensity is high.Can further improve the positioning accuracy of supply unit 30 like this with respect to tape deck 20.
In addition, the guide finger 61 of guiding mechanism 60 is fixed on the supply unit 30, and pin bearing part 62 is fixed on the framework 70 of apparatus main body 2.Therefore, can not form guide finger 61 from the outstanding upward long structure of apparatus main body 2.Like this after supply unit 30 is descended, under the situation that supply unit 30 is taken off from apparatus main body 2, can prevent that guiding mechanism 60 from hindering the described operation of taking off.Therefore, improving on the basis of supply unit 30 with respect to the positioning accuracy of tape deck 20, can also improve the transaction capabilities when safeguarding.
Below, by Figure 19 the structure of the related guiding mechanism 60A of distortion embodiment is described.Figure 19 is expression guiding mechanism 60A and partial perspective view on every side thereof.In addition, the basic comprising of this distortion embodiment is with identical with the described embodiment of Figure 12～Figure 18 explanation.
Like this, because the recess of guiding mechanism 60 by bar bearing part 64 comes clamping guide post 63 and it is led, rotate in horizontal plane so can prevent supply unit 30, and the configuration of bar bearing part 64 is carried out easily.Like this, not only the positioning accuracy of supply unit 30 can be further improved, and the setting of guiding mechanism 60A can be simplified.
More than first, second embodiment of the present invention is illustrated, but scope of the present invention is not limited thereto, and without departing from the spirit and scope of the invention, for example can implement the change of following (1)～(5).
(1) in the above-described embodiment, to using ink-jet printer to be illustrated as an example of image processing system.Image processing system also can be toner as transfer printing and photographic fixing to paper and the laser printer that prints etc.
(2) about the formation of eccentric cam 41, the bearing 43 that is provided with on this eccentric cam 41 is five in the first embodiment, is four in second embodiment.But the number of bearing 43, than described number Duo or less can, and can be configured in other position.In addition, eccentric cam 41 shapes own also are not limited to the shape of above-mentioned embodiment, also can be other shapes.
(3) in addition, also can use the eccentric cam that does not have bearing.In this case, be example with eccentric cam shown in Figure 4 41, peripheral edge portion 411a, the 412a of a pair of holding plate 411,412 is cam surface.Therefore, preferably: adopt the material of low friction performance to constitute holding plate 411,412, or on peripheral edge portion 411a, 412a, apply the coating of low friction performance.
(4) in the above-described embodiment, represented on first side plate 301 of supply unit 30 and second side plate 302, respectively to be provided with respectively the example of two supporting members 50 (align member).Yet,,, a supporting member 50 is installed on second side plate 302 so for example also can two supporting members 50 be installed on first side plate 301 because the location also can be supported at three point.Perhaps also can a supporting member 50 be installed on first side plate 301, two supporting members 50 are installed on second side plate 302.
(5) in the above-described embodiment, represented that the lower surface with the sliding part 52 of supporting member 50 is set at the example of bearing surface 52c.Yet, bearing surface 52c also can be set in supply unit 30 or with the adjunct of its formation one on, for example also can adopt eccentric cam 41 to be connected to mode on the base plate of supply unit 30.
In addition, in the above-mentioned specific embodiment, mainly comprise the invention of following formation.
A kind of image processing system provided by the invention comprises: tape deck prints on recording medium; Supply unit, relative with described tape deck and be configured in the below of this tape deck, carry described recording medium; And lowering or hoisting gear, make described supply unit lifting; Wherein, described lowering or hoisting gear comprises the biasing of self pivot center and is configured in the eccentric cam of described supply unit below, and described supply unit has the bearing surface with the side face butt of described eccentric cam, and gives lifting by the rotation of described eccentric cam.
Constitute according to this,, can make eccentric cam itself, its axial region and the size of the loads that drive unit bore such as motor of eccentric cam rotation is changed gradually reposefully owing to make the supply unit lifting by the rotation of eccentric cam.Can suppress lowering or hoisting gear produces excess load suddenly when starting situation like this.Therefore, can prevent that eccentric cam and motor from producing distortion or damaged.Its result can provide and can not produce excess load in lowering or hoisting gear, can make the supply unit lifting reposefully and improve the endurance life of printer, the image processing system that can carry out high-quality image formation.
In the above-described configuration preferably: described eccentric cam has a plurality of revolving members, and at least a portion of described revolving member is outstanding laterally from the side face of this eccentric cam, and with the bearing surface butt of described supply unit.
Constitute according to this, the friction that can alleviate the contact portion of eccentric cam and supply unit can reduce the wearing and tearing of this contact portion, and can carry out the lifting of supply unit reposefully.Therefore, the endurance life of image processing system can be improved, the stable descending operation of supply unit can be carried out.
In this case, preferably: described a plurality of revolving members are arranged in order configuration along the direction away from the pivot center of described eccentric cam gradually.
The rotation of eccentric cam constitutes according to this, along with can make revolving member be connected on the supply unit successively.Can alleviate the friction of the contact portion of eccentric cam and supply unit like this, and can make eccentric cam itself, its axial region and the size of the loads that drive unit bore such as motor of eccentric cam rotation is changed gradually reposefully.Therefore, can further improve the endurance life of image processing system, and improve the stability of the lifting action of supply unit.
In addition, preferably: adjacent two revolving members in described a plurality of revolving members, in the rotation process of described eccentric cam, have on the bearing surface that is connected to described supply unit simultaneously during.
Constitute according to this, can form the state that some at least revolving members necessarily are connected to supply unit.Like this, can prevent that supply unit from directly contacting eccentric cam itself.Therefore, when making the supply unit lifting, can carry out descending operation more reposefully.
In the above-described configuration preferably: described eccentric cam comprises a pair of holding plate and a plurality of bearings that kept freely by this holding plate rotation, described bearing keeps by described holding plate respectively, the part of the outer peripheral face of bearing is given prominence to laterally from the end edge of described a pair of holding plate, and each bearing outer peripheral face the line at outstanding position constitute the cam surface of regulation, described cam surface is connected on the described bearing surface.
Constitute according to this, can form a part simply from the outside eccentric cam of outstanding state of the side face of eccentric cam with revolving member.
In the above-described configuration preferably: described supply unit has and is used for align member that described supply unit is positioned with respect to described tape deck, and described align member comprises fixed component, has outstanding upward pin; Sliding component has described bearing surface, and is chimeric and slide up and down with described fixed component; And press member, between described fixed component and described sliding component.
According to this formation, need not masterful technique, the parastate of promptly can hold the record fully device and supply unit.
In the above-described configuration preferably: described align member is installed three at least on described supply unit.For example, first side plate and second side plate that supply unit has the annular, peripheral rotating band of conveying recording medium and is configured in these annular, peripheral rotating band both sides, described align member can be installed three at least on described first side plate and described second side plate, when on described first side plate, installing at least under the situation of a described align member, two described align members are installed on described second side plate at least, when on described first side plate, installing at least under the situation of two described align members, a described align member is installed at least on described second side plate.
In the above-described configuration preferably: also comprise the guiding mechanism that the described supply unit of guiding moves along above-below direction.
According to this formation,, when making the supply unit lifting, can stop supply unit to produce horizontal position skew by lowering or hoisting gear owing to have guiding mechanism.Therefore, can improve the positioning accuracy of supply unit, and the prevention recording medium stops up with respect to tape deck.
In this case preferably: described guiding mechanism has basically along the sliding component of vertical direction extension and the ways that engages with this sliding component.
According to this formation,, can make supply unit can not produce the position skew in the horizontal direction along the vertical direction lifting by simple structure.Can carry out accurate in locating more to supply unit like this with respect to tape deck.
Described sliding component is cylindrical, described ways have can with the chimeric hole of described cylindrical sliding component.Thus, can obtain guiding mechanism in light weight and that intensity is high.Can further improve the positioning accuracy of supply unit like this with respect to tape deck.
In addition, described sliding component can be rectangular, and described ways can have a pair of recess that is configured to clamp described sliding component.Thus, can prevent that supply unit from rotating in horizontal plane, and can easily carry out the configuration of ways.
In the above-described configuration preferably: described sliding component is fixed on the described supply unit, and described ways is fixed on the apparatus main body of image processing system.
Constitute according to this, can not form sliding component from the outstanding upward long structure of apparatus main body.Under the situation that need to make supply unit decline back in order safeguarding by lowering or hoisting gear, supply unit to be taken off from apparatus main body, can prevent that guiding mechanism from hindering the described operation of taking off like this.Therefore, improving on the basis of supply unit with respect to the positioning accuracy of tape deck, can also improve the transaction capabilities when safeguarding.
In the above-described configuration preferably: described tape deck has a plurality of ink jet heads, forms color black image on described recording medium.
Another kind of image processing system provided by the present invention comprises: tape deck prints on recording medium; Supply unit, relative with described tape deck and be configured in the below of this tape deck, carry described recording medium; Align member is mounted to one with described supply unit, is used for described supply unit is positioned with respect to described tape deck; Lowering or hoisting gear comprises the eccentric cam of self pivot center biasing making described supply unit lifting; And guiding mechanism, guide described supply unit to move along above-below direction, wherein, described align member has the bearing surface with the side face butt of described eccentric cam, described supply unit is by the rotation of described eccentric cam, by described guiding mechanism guiding, give lifting between described align member simultaneously.
Claims (15)
1. image processing system is characterized in that comprising:
Tape deck prints on recording medium;
Supply unit, relative with described tape deck and be configured in the below of this tape deck, carry described recording medium; And
Lowering or hoisting gear makes described supply unit lifting; Wherein,
Described lowering or hoisting gear comprises the biasing of self pivot center and is configured in the eccentric cam of described supply unit below,
Described supply unit has the bearing surface with the side face butt of described eccentric cam, and the lifting by the rotation of described eccentric cam.
2. image processing system according to claim 1 is characterized in that described eccentric cam has a plurality of revolving members, and at least a portion of described revolving member is outstanding laterally from the side face of this eccentric cam, and with the bearing surface butt of described supply unit.
3. image processing system according to claim 2 is characterized in that, described a plurality of revolving members are arranged in order configuration along the direction away from the pivot center of described eccentric cam gradually.
4. image processing system according to claim 2 is characterized in that, adjacent two revolving members in described a plurality of revolving members, in the rotation process of described eccentric cam, have on the bearing surface that is connected to described supply unit simultaneously during.
5. image processing system according to claim 1 is characterized in that,
Described eccentric cam comprises a pair of holding plate and a plurality of bearings that kept freely by this holding plate rotation,
Described bearing keeps by described holding plate respectively, so that the part of the outer peripheral face of bearing is outstanding laterally from the end edge of described a pair of holding plate, and the line that links the most outstanding position of each bearing outer peripheral face constitutes the cam surface of regulation,
Described cam surface is connected on the described bearing surface.
6. image processing system according to claim 1 is characterized in that,
Described supply unit comprises and is used for described supply unit is carried out align member with respect to the location of described tape deck,
Described align member comprises:
Fixed component has outstanding upward pin;
Sliding component has described bearing surface, and is chimeric and slide up and down with described fixed component;
And
Press member, between described fixed component and described sliding component.
7. image processing system according to claim 6 is characterized in that, described align member is equipped with three at least on described supply unit.
8. image processing system according to claim 7 is characterized in that,
Described supply unit comprises: the annular, peripheral rotating band of conveying recording medium; And first side plate and second side plate that are configured in these annular, peripheral rotating band both sides,
Described align member is installed three at least on described first side plate and described second side plate, when on described first side plate, installing at least under the situation of a described align member, two described align members are installed on described second side plate at least, when on described first side plate, installing at least under the situation of two described align members, a described align member is installed at least on described second side plate.
9. image processing system according to claim 1 is characterized in that also comprising: guiding mechanism guides described supply unit to move along above-below direction.
10. image processing system according to claim 9 is characterized in that, described guiding mechanism comprises: the sliding component that extends along vertical direction roughly; And the ways that engages with this sliding component.
11. image processing system according to claim 10 is characterized in that,
Described sliding component is cylindrical,
Described ways has and the chimeric hole of described cylindrical sliding component.
12. image processing system according to claim 10 is characterized in that,
Described sliding component is rectangular,
Described ways has a pair of recess that is configured to clamp described sliding component.
13. image processing system according to claim 10 is characterized in that,
Described sliding component is fixed on the described supply unit,
Described ways is fixed on the apparatus main body of image processing system.
14. image processing system according to claim 1 is characterized in that, described tape deck has a plurality of ink jet heads, forms color black image on described recording medium.
15. an image processing system is characterized in that comprising:
Tape deck prints on recording medium;
Supply unit, relative with described tape deck and be configured in the below of this tape deck, carry described recording medium;
Align member is mounted to one with described supply unit, is used for described supply unit is positioned with respect to described tape deck;
Lowering or hoisting gear comprises the eccentric cam of self pivot center biasing making described supply unit lifting; And
Guiding mechanism guides described supply unit to move along above-below direction, wherein,
Described align member has the bearing surface with the side face butt of described eccentric cam,
Described supply unit is guided by described guiding mechanism by the rotation of described eccentric cam, and gives lifting between described align member.
Applications Claiming Priority (9)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2007021053 | 2007-01-31 | ||
| JP2007021053A JP4851950B2 (en) | 2007-01-31 | 2007-01-31 | Image forming apparatus and positioning member thereof |
| JP2007-021053 | 2007-01-31 | ||
| JP2007104633A JP2008260209A (en) | 2007-04-12 | 2007-04-12 | Image forming apparatus |
| JP2007-104633 | 2007-04-12 | ||
| JP2007104633 | 2007-04-12 | ||
| JP2007157520A JP2008307780A (en) | 2007-06-14 | 2007-06-14 | Image forming apparatus |
| JP2007-157520 | 2007-06-14 | ||
| JP2007157520 | 2007-06-14 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101234564A CN101234564A (en) | 2008-08-06 |
| CN101234564B true CN101234564B (en) | 2010-12-08 |
Family
ID=39727194
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100047604A Expired - Fee Related CN101234564B (en) | 2007-01-31 | 2008-01-30 | Image forming device |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP4851950B2 (en) |
| CN (1) | CN101234564B (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8191979B2 (en) * | 2009-04-01 | 2012-06-05 | Fujifilm Dimatix, Inc. | Depositing drops on a substrate carried by a stage |
| CN102616012B (en) * | 2012-03-13 | 2014-06-11 | 新会江裕信息产业有限公司 | Driving device for printer |
| JP2014046563A (en) * | 2012-08-31 | 2014-03-17 | Seiko Epson Corp | Ink jet recording device |
| CN103395298A (en) * | 2013-06-27 | 2013-11-20 | 合肥海闻机器人开发有限公司 | Conveying structure used for digital ribbon inkjet |
| CN107310280A (en) * | 2017-06-23 | 2017-11-03 | 安徽新华印刷股份有限公司 | A kind of printer drying unit |
| CN108583015A (en) * | 2018-04-24 | 2018-09-28 | 东莞顺裕纸业有限公司 | A kind of corrugated paper spray code spraying apparatus |
| JP7131072B2 (en) * | 2018-05-22 | 2022-09-06 | 京セラドキュメントソリューションズ株式会社 | Inkjet recording device |
| JP2019209539A (en) * | 2018-06-01 | 2019-12-12 | 京セラドキュメントソリューションズ株式会社 | Image formation device |
| CN109484476B (en) * | 2018-10-26 | 2021-04-20 | 卜俊飞 | Box body walking device of inkjet printer |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2816217B2 (en) * | 1990-02-21 | 1998-10-27 | キヤノン株式会社 | Recording device |
| JP2001277618A (en) * | 2000-03-29 | 2001-10-09 | Sharp Corp | Ink jet image-forming apparatus |
| JP2002248819A (en) * | 2001-02-23 | 2002-09-03 | Canon Inc | Platen, its supporting structure, and recorder equipped with supporting structure of platen |
| JP4265787B2 (en) * | 2004-07-27 | 2009-05-20 | 株式会社リコー | Belt conveying device and image forming apparatus using the belt conveying device |
| JP4740665B2 (en) * | 2005-07-05 | 2011-08-03 | オリンパス株式会社 | Image recording device |
-
2007
- 2007-01-31 JP JP2007021053A patent/JP4851950B2/en not_active Expired - Fee Related
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2008
- 2008-01-30 CN CN2008100047604A patent/CN101234564B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN101234564A (en) | 2008-08-06 |
| JP4851950B2 (en) | 2012-01-11 |
| JP2008183861A (en) | 2008-08-14 |
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