CN103034105A - Fixing unit for fixing toner image - Google Patents
Fixing unit for fixing toner image Download PDFInfo
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- CN103034105A CN103034105A CN2013100135907A CN201310013590A CN103034105A CN 103034105 A CN103034105 A CN 103034105A CN 2013100135907 A CN2013100135907 A CN 2013100135907A CN 201310013590 A CN201310013590 A CN 201310013590A CN 103034105 A CN103034105 A CN 103034105A
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Abstract
The invention discloses a fixing unit for fixing a toner image, including a heating roller, a pressure roller, and an auxiliary unit connecting part; wherein the pressure roller can perform pressure contact with the heating roller, and one of the heating roller and the pressure roller can be drawn out along the axial direction of the roller, and an auxiliary unit for assisting the drawing out of the roller is detachably connected to the auxiliary unit connecting part which is arranged at the tail end of the draw-out direction of the roller.
Description
The application is that application number is 201010002147.6, the applying date the dividing an application for the application for a patent for invention of " fixedly the fixation unit of ink powder image, fixedly roller replacement auxiliary tool and the image processing system of the fixation unit of ink powder image " that be on 01 07th, 2010, denomination of invention.
Technical field
The present invention relates to a kind of image processing system of for example laser beam printer, and relate in particular to a kind of fixation unit of fixedly ink powder image of image processing system, fixedly roller replacement auxiliary tool and the roller replacement method of the fixation unit of ink powder image.
Background technology
For example a kind of known fixation unit of the image processing system of laser beam printer and duplicating machine is fixed to ink powder image on the recording medium with this recording medium of clamping between warm-up mill and pressure roll by heating with by being pressed in the recording medium that its front surface keeps ink powder image (toner image) and transmit simultaneously this ink powder image.
In warm-up mill, be provided with a plurality of lamps as thermal source.Usually, the fast and figure that be suitable for storing high ream weight recording medium of print speed form the high heat energy power of matching requirements be used for fixedly ink powder image and thereby warm-up mill must be remained on specified temp or higher, this is the higher fixed temperature of requirement then.
When the terminal that arrives service life owing to the warm-up mill that remains on high temperature, when maintenance technician is replaced warm-up mill, he or she stops the operation of image processing system, so that warm-up mill itself is extracted warm-up mill out from fixation unit after being cooled to be enough to carry out the specific degrees of replacement operation, and with new replacement warm-up mill.Yet, in this case, need the time to cool off warm-up mill and greatly reduced operating efficiency.In addition, this not only stops the decline that a period of time causes operating efficiency owing to image processing system, and causes replacing the significant cost of attended operation.
Recently, need a kind of image processing system that is suitable for high print speed, high image quality and various paper.In addition, required fixation unit to use certain type warm-up mill, such as the warm-up mill that has the thin PFA resin that is coated on its front surface etc. and be used for when require high print speed, being provided for rapidly the fixing heat of ink powder image, have the silicon rubber that is coated on its front surface etc. for when requiring high image quality so that at the ink powder image flushing of bearing and the warm-up mill that damages minimized warm-up mill and have the PFA resin that applies at silastic-layer etc. during when the picture quality that requires to have specific degrees and roller permanance.
For in response to the such demand in the image processing system, must correspondingly change warm-up mill.Although have some differences according to type, warm-up mill basically has high heat energy power and need to cool off for a long time with replaceable from the condition of high temperature, and warm-up mill is maintained at this condition of high temperature to be provided for the fixing required heat of optimum ink powder.At the publication number 5-504633 of the country of patent document 1(Japanese patent application for example) in the replacement of warm-up mill has been discussed.
Fig. 1 and Fig. 2 are the partial cross section figure of the fixation unit of description in the patent document 1 and the stereographic map that the fixation unit of the warm-up mill that just is being replaced is shown.
Fig. 1 is the partial cross section figure of the fixation unit of description in the patent document 1.As shown in Figure 1, an end of warm-up mill 100 is supported by support lugn 101 by framework 102.Support lugn 101 has bearing 103, and bearing 103 is installed in the openend of warm-up mill 100 with central unit 104.Although not shown among Fig. 1, the other end of warm-up mill 100 also passes through bearings by support lugn.
In warm-up mill 100, a plurality of heat spreader modules 105 have been arranged.The first end of a plurality of heat spreader modules 105 is clamped in the central authorities of support lugn 101 by hold assembly 109.Although not shown in Fig. 1, the other end of a plurality of heat spreader modules 105 is also supported by support lugn indirectly by hold assembly.
As shown in Figure 1, the connector 110 that is arranged on the end of a plurality of heat spreader modules 105 is more outwards given prominence to than support lugn 101, is clamped in the central authorities of support lugn 101 at a plurality of heat spreader modules 105 in support lugn 101 places.Support lugn 101 and handle 111 are provided for replacing warm-up mill 100 integratedly.Thereby handle 111 is set to be crossed over from the connector 110 of the outstanding a plurality of heat spreader modules 105 of support lugn 101.
As shown in Figure 2, when replacing warm-up mill 100, the operator unclamps wing screw 106 and by extracting warm-up mill 100 with support lugn 101 etc. with a hand grip handle 111 from framework 102.
Usually, the warm-up mill that uses in such fixation unit is cylinder, has diameter and 500mm or the larger length of about 100mm, and this weighs very much.In this case, when the operator when from framework 102, extracting warm-up mill 100 with support lugn 101 grades with a hand grip handle 111 because weight and the heat of warm-up mill 100 grades, the draw out operation potentially unstable.Thereby, in the replacement process of warm-up mill 100, thereby may cause warm-up mill 100 to contact the front surface that damages warm-up mill 100 with other member of for example framework 102.
As mentioned above, because the posture of warm-up mill 100 becomes unstable and the posture that aid is used for stablizing warm-up mill 100 is not set, among the embodiment that discloses in patent document 1, when replacing warm-up mill 100, the operator is placed on a hand on the warm-up mill 100.Yet when the operator touched the warm-up mill 100 of high temperature, he or she was burnt or the ink powder release agent and the lubricating oil that are attached on the warm-up mill 100 are made the problem during this causes operating dirty.
In addition, because the support lugn 101 of handle 111 and a plurality of heat spreader modules 105 of clamping forms as one and is arranged near the end of a plurality of heat spreader modules 105, handle 111 itself also is in high temperature.Thereby when replacing warm-up mill 100, the operator is difficult to grip handle 111.
Simultaneously, when image processing system was in mode of operation, handle 111 was used for rotation and clamping warm-up mill 100 and is screwed into the link (not shown).Thereby link and screw also are in high temperature.Therefore, it is the operation of processing the parts that comprise the screw that is in high temperature that warm-up mill 100 is separated from link, and this causes the problem in workability and the safety.
In addition, handle 111 is arranged on the central authorities of support lugn 101, and next this disturb mutually with the replacement of a plurality of heat spreader modules 105.Thereby a plurality of heat spreader modules 105 are restricted to from being inserted into and being drawn out of at another support lugn that handle 111 is not set, and this has caused the problem in the operation.
In addition, handle 111 is outstanding from support lugn 101.Thereby, wasted the space, this causes the problem in the miniaturization of image processing system.
In addition, when the operator when from framework 102, extracting warm-up mill 100 with support lugn 101 grades with a hand grip handle 111, may cause warm-up mill 100 and framework 102 to contact to damage the front surface of roller.Thereby, be coated with felt 130 near the opening of framework 102 with protected.Yet, when the warm-up mill 100 with the release agent that is attached on its front surface and lubricating oil slides, assemble at felt 130 and to stain.Thereby the above-mentioned front surface that is configured in for the protection of warm-up mill 100 is invalid.
In addition, all need when replacing warm-up mill 100 to adhere at every turn and separate felt 130, this causes complicated replacement operation.In addition, felt 130 is all stain when replacing warm-up mill 100 at every turn, and next this need to abandon the felt 130 of contamination and prepare new felt 130.
Patent document 1: Japanese patent application country discloses publication number 5-504633
Patent document 2: Japan discloses patent publication No. 6-011984
Summary of the invention
The present invention be directed to defects and make and the fixation unit that can be miniaturized, the roller that can be replaced, roller replacement auxiliary tool, roller replacement method and image processing system can be provided.
According to a first aspect of the invention, provide a kind of fixation unit, having comprised: warm-up mill; Can carry out with warm-up mill the pressure roll of pressure contact, can be extracted out by the direction of principal axis along roller for one in warm-up mill and the pressure roll; And the auxiliary unit coupling part, the auxiliary unit that is used for the extraction of help roll is detachably connected to the end portion that auxiliary unit coupling part and auxiliary unit coupling part are arranged on the extraction direction of roller.
According to a second aspect of the invention, provide a kind of fixation unit, having comprised: warm-up mill; Can carry out with warm-up mill the pressure roll of pressure contact, one in warm-up mill and the pressure roll can be inserted into by the direction of principal axis along roller and extract out; Be formed on the opening that being used in the relative framework with the roller that can be inserted into and extract out replace; And the roller that is arranged on the outside of framework and will will be drawn out of and will insert with support near the support component the opening of replacing.
According to a third aspect of the invention we, provide a kind of image processing system, having comprised: transfer printing unit is transferred to the ink powder image on the image-carrier on the medium; And above-mentioned fixation unit; It is characterized in that, the pressure roll that fixation unit has warm-up mill and can carry out with warm-up mill pressure contact, and pass gap between warm-up mill and the pressure roll so that ink powder image is fixed on the medium so that have the medium of transfer printing ink powder image thereon.
According to a forth aspect of the invention, provide a kind of roller replacement auxiliary tool of fixation unit, extracted and replace warm-up mill out and can carry out in the pressure roll of pressure contact one with warm-up mill along the direction of principal axis of roller.Roller replacement auxiliary tool comprises and removably is attached to fixation unit to penetrate by the axial leading axle that penetrates the opening that forms at the roller that will be replaced; And auxiliary unit, removably be attached to the extraction direction that is arranged on the roller that will be replaced end portion the auxiliary unit coupling part and from the end that is externally mounted to leading axle to insert and to extract out roller.
When read in conjunction with the accompanying drawings, from following specific descriptions, will more be expressly understood other purpose of the present invention, Characteristics and advantages.
Description of drawings
Fig. 1 is the partial cross section figure of traditional fixation unit;
Fig. 2 is the stereographic map that the warm-up mill of the fixation unit that is being replaced is shown;
Fig. 3 is the schematic diagram according to the image processing system of the embodiment of the invention;
Fig. 4 is according near the sectional view the warm-up mill of the embodiment of the invention;
Fig. 5 is the sectional view according to the projecting part place that is attached to warm-up mill of the embodiment of the invention;
Fig. 6 is the sectional view according to the leading axle place of the inside that is attached to warm-up mill of first embodiment of the invention;
Fig. 7 is the sectional view that is inserted into the auxiliary unit place in the warm-up mill according to first embodiment of the invention;
Fig. 8 is the sectional view of extracting projecting part from warm-up mill out;
Fig. 9 A and Fig. 9 B are the sectional views of auxiliary unit, and wherein Fig. 9 A is the view that the control lever part of two breech locks is guided outward from each other, and Fig. 9 B illustrates the view that the control lever part is inwardly guided mutually;
Figure 10 is the part stereographic map according to the auxiliary unit of first embodiment of the invention;
Figure 11 is the block diagram that illustrates according to the process that is used for the replacement warm-up mill of the embodiment of the invention;
Figure 12 A and 12B are the sectional views that illustrates along the relation between the plane X among Fig. 7-absorber of X intercepting and the holding piece of clamper, wherein Figure 12 A is that auxiliary unit is inserted into the view of locating in the warm-up mill, and Figure 12 B is the view that auxiliary unit is attached to the absorber place;
Figure 13 is the sectional view that auxiliary unit is attached to the warm-up mill place according to first embodiment of the invention;
Figure 14 is the sectional view according to the warm-up mill that just is being drawn out of of first embodiment of the invention;
Figure 15 is the sectional view according to the warm-up mill that will be drawn out of of second embodiment of the invention;
Figure 16 is the sectional view according near the amplification of pushing pin of second embodiment of the invention;
Figure 17 A and 17B are the views that illustrates along the relation between the holding piece of the absorber of the plane Y-Y among Figure 15 intercepting and clamper, wherein Figure 17 A is the view that auxiliary unit is inserted into the warm-up mill place, and Figure 17 B is the view that auxiliary unit is attached to the absorber place;
Figure 18 A and 18B are the sectional views according to the auxiliary unit of second embodiment of the invention, and wherein Figure 18 A is the view that the control lever part of two breech locks is guided outward from each other, and Figure 18 B is the view that the control lever part is inwardly guided mutually;
Figure 19 be according to second embodiment of the invention be used for that explanation is attached to warm-up mill with auxiliary unit and with the partial cross section figure of auxiliary unit from the operation of warm-up mill dismounting;
Figure 20 A to 20F is the view that the backing roll parts are shown, wherein Figure 20 A and 20B are side view and the planimetric maps when the backing roll parts are in operating position, Figure 20 C and 20D are side view and the planimetric maps when the backing roll parts are moved to the spare space from operating position, and Figure 20 E and 20F are side view and planimetric map when the backing roll parts are in the spare space;
Figure 21 illustrates two help roll parts with respect to the view of the layout of auxiliary unit;
Figure 22 is the block diagram that illustrates according to the process that is used for the replacement warm-up mill of third embodiment of the invention; And
Figure 23 is the partial cross section figure by the warm-up mill place of two backing roll member supporting according to the embodiment of the invention.
Embodiment
Below, be described in detail with reference to the attached drawings according to embodiments of the invention.
(configured in one piece of laser beam printer)
At first with reference to figure 3, the configured in one piece of the electrofax laser beam printer of using the embodiment of the invention is described.
In Fig. 3, Reference numeral 1 expression laser beam printer, and photosensitive drums 21 is according to coming the printing commencing signal of self-controller 22 to rotate in the arrow indicated direction.The speed rotation that photosensitive drums 21 equates with the print speed with laser beam printer 1 and continue oneself rotation until printing stop.When photosensitive drums 21 begins the rotation of oneself, apply high voltage to corona charging device 2.Then, corona charging device 2 for example fills positive charge uniformly on the front surface of photosensitive drums 21.
When providing electric energy to laser beam printer 1, rotation polygon mirror 3 begins the rotation of oneself immediately.When providing electric energy to laser beam printer 1, rotation polygon mirror 3 keeps the constant speed rotation with high accuracy.Be rotated polygon mirror 3 reflections and shine on the photosensitive drums 21 by f-θ lens 5 with scan mode from the light output of the light source 4 of for example semiconductor laser.When ON/OFF signal from controller 22 to laser beam printer 1 that provide the text data that is converted into dot image and graph data as laser beam from, shine certain part of the front surface of photosensitive drums 21 with laser beam, but do not shine another part of the front surface of photosensitive drums 21.At this moment, the front surface in photosensitive drums 21 forms electrostatic latent image.
When the zone of the photosensitive drums 21 that keeps electrostatic latent image arrives the position of opposite side of developing cell 6, provide ink powder to electrostatic latent image.For example, the ink powder that has been filled positive electricity is adsorbed to the part that the irradiation owing to laser beam on the photosensitive drums 21 causes electric charge to disappear, and next this form ink powder image in photosensitive drums 21.
Paper transmits and to drag paper chain 8 to be sent to place between photosensitive drums 21 and the transfer printing unit 10 with will being contained in continuous form (with the medium that is recorded) 7 and Timing Synchronization in the paper case (sheet hopper) 11, regularly is formed on ink powder image arrival transfer position on the photosensitive drums 21 at this.Be formed on the operation that ink powder image on the photosensitive drums 21 is transferred unit 10 and be adsorbed onto on the paper 7, this operation will have the rear surface that is applied to paper 7 with the electric charge of the opposite polarity polarity of ink powder image.
Then, dragging paper chain 8, transfer printing unit 10, paper to transmit by the paper transmission drags paper chain 9 and buffer board 24 that paper 7 is sent to fixation unit 12.After arriving fixation unit 12, paper 7 is preheated by the pre-heater 13 that comprises a plurality of well heaters, and be held and transmit, with the nip part with a pair of stationary roll divide the heating and press, this stationary roll comprises that by each the warm-up mill 14 of a plurality of lamps 25 and pressure roll 15 form.In this way, ink powder image is melted and is fixed to paper 7.
Be fed into paper receiver platform 19 from the paper 7 of warm-up mill 14 and pressure roll 15 feedings by paper feed roller 16, and folded alternatively along perforation by the operation of waving of waving fin 17 simultaneously.In addition, paper 7 is deposited on the paper receiver platform 19, thereby folding exactly by rotating vane 18.Passed the zone of photosensitive drums 21 of transfer position by cleaning unit 20 cleaning and for subsequent use for next printing.
Buffer board 24 is used for absorbing when paper transmits and drags when having paper transfer rate difference between paper chain 9 and stationary roll 14 and 15 by cause lax of paper 7 or strain.Reference numeral 23 is the display screens that show information during printing based on the state of laser beam printer 1.Reference numeral 26 is can contact the front surface of warm-up mill 14 and from the rolled-up roll web parts of the front surface of warm-up mill 14 (web member), be used for front surface coating ink powder release agent and lubricating oil at warm-up mill 14.
(near the structure the warm-up mill)
Below with reference to Fig. 4, near the structure the warm-up mill 14 of description fixation unit 12.The metal tube 14a that warm-up mill 14 is made by for example aluminium and be arranged on for example teflon on the paper path zone of circumferential surface of pipe 14a and the front surface layer 14b of silicon rubber forms.In near the opening at the two ends of warm-up mill 14 the zone, the heat of being made by for example aluminium shifts and prevents that parts 14c and 14d(hereinafter are called absorber) be fixed one at every end.The temperature of the anti-locking apparatus of absorber 14c and 14d is owing to the transfer of a plurality of lamps 25 from be included in warm-up mill 14 to the heat of the outside of warm-up mill 14 raises.
The end of warm-up mill 14 supports by hold assembly 48 and 49 frameworks 15 by fixation unit 12 with central unit 46 and 47 respectively.
Hold assembly 48 arranges the central unit 46 that has by bearing 51, and central unit 46 is inserted in the openend of warm-up mill 14.Bearing 51 can absorb the thermal expansion of warm-up mill 14 and the difference between the circumferential brace portions part, and wherein a plurality of springs 52 are arranged on bearing 51 on the end surfaces that is arranged in the hold assembly 48 and the axial direction of detent plate 53.When assembling had warm-up mill 14, a plurality of springs 52 were compressed a little to form the gap between central unit shown in Figure 4 46 and bearing 51 and detent plate 53.Hold assembly 48 is fixed to framework 50 by a plurality of wing screws 54.
Hold assembly 49 arranges has gear 55, the driving force that is used for receiving spinning and drives the motor of warm-up mill 14, and rotatably supported by shell 58 and 59 by bearing 56 and 57 respectively.In order to prevent from damaging and 46 and 47 heat shifts from warm-up mill 14 to central unit, between the corresponding end of warm-up mill 14 and central unit 46 and 47, insert heat resistant plastice ring 60.Notice that CD-ROM drive motor is typical types.
Form the lamp box 63 of being tied by the lamp holder 61 and 62 of the corresponding end of a plurality of lamps 25 of clamping as a plurality of lamps 25 of the thermal source of warm-up mill 14.Lamp box 63 is arranged on the central authorities in the warm-up mill shown in Figure 4 14.In Fig. 4, Reference numeral 31 expression detents 31, and Reference numeral 32 expressions are used for the fixedly nail of detent 31.As shown in Figure 4, detent 31 than low side the inside towards the through hole 59a of shell 59 under normal condition.
(dismounting of lamp box and attached)
Below with reference to Fig. 5, the dismounting of description lamp box 63 and attached.When replacing following lamp box 63 or warm-up mill 14, use as shown in Figure 5 the guard block 64 of being made by for example paper web.The interior diameter of the inner cylinder 59b of the interior diameter of the overall diameter of guard block 64 and hold assembly 48 and shell 59 is roughly the same.In addition, the overall diameter of the interior diameter of guard block 64 and lamp holder 62 is roughly the same.In addition, the distance between the Length Ratio left and right sides framework 50 of 64 in protection section is bigger.
When lamp box 63 was inserted in the warm-up mill 14, guard block 64 covered a side of lamp holder 62, and the right-hand member of guard block 64 contacts with the end surfaces of other lamp holder 61.The end portion of lamp holder 62 has inclination 62a, is used for helping the insertion of guard block 64.
As shown in Figure 5, when detent 31 was raised, detent 31 was fixed on the higher position by nail 32.Lamp box 63 with attached guard block 64 is inserted by the side from hold assembly 48, and as among Fig. 5 shown in the arrow A, and guard block 64 is guided by the inner cylinder 59b of hold assembly 48 and shell 59.When the part of lamp holder 61 contacted with hold assembly 48, the insertion of lamp box 63 stopped.At this moment, the end portion at the guard block 64 of direction of insertion is outstanding from shell 59.Thereby, when the remainder of guard block 64 endways after the outshot of part when direction is drawn out of as shown by arrow A, the attached of lamp box 63 finished.
When extracting lamp box 63 out from warm-up mill 14, insert guard block 64 as the side from the through hole 59a of shell 59 shown in the arrow B among Fig. 5.At this moment, begin to contact with the end surfaces of lamp holder 61 in the end portion of the guard block 64 of direction of insertion, and simultaneously by the inner cylinder 59b of shell 59, inclination 62a and hold assembly 48 guiding of lamp holder 62.When further insertion guard block 64, at as shown by arrow B direction promotion lamp box 63 and guard block 64, this is next so that can extract lamp box 63 out.Therefore, can collectively dismantle a plurality of lamps 25.
As mentioned above, cover the insertion of the lamp box with guard block 64 and extracting out and can prevent in the processing procedure of lamp box 63 damage to a plurality of lamps 25.In addition, the insertion of a plurality of lamps 25 and extraction can collectively be carried out.
Attention is preferably as the paper web of guard block 64, because it has heat insulation attribute, predetermined physical strength and is easy to obtain owing to it is low-cost.
(the first embodiment)
(being used for the configuration of the aid of replacement warm-up mill)
Next, description is according to the aid that is used for replacing warm-up mill 14 of first embodiment of the invention.Aid according to this embodiment is seen for example Fig. 6 by leading axle 30() and auxiliary unit 40(see for example Fig. 7) form.
Leading axle 30 is made by the metallic cylindrical body with rigidity.As shown in Figure 6, the distance between the Length Ratio left and right sides framework 50 of leading axle 30 is slightly long, and the interior diameter of the inner cylinder 59b of the interior diameter of the interior diameter of the overall diameter of leading axle 30 and hold assembly 48, absorber 14d and shell 59 is big or small roughly the same.
On the side surface of shell 59, be used for the tabular detent 31 of fixing (locking) leading axle 30 by nail 32 slidably clampings.As shown in Figure 6, in the circle wall of leading axle 30, be provided with crack 30a, thereby when leading axle 30 is inserted into the precalculated position, detent 31 be inserted in the leading axle 30.
According to this embodiment, used tabular detent 31, and in leading axle 30, be provided with crack 30a.Alternatively, can use the spike detent and in leading axle 30, through hole is set, in this through hole, insert the spike detent.In addition, can also use screw removably leading axle 30 to be fixed to shell 59 etc.
The position movement that as mentioned above leading axle 30 fixing (locking) is not caused leading axle 30 when insertion and extraction warm-up mill 14, hold assembly 48 and auxiliary unit 40 to the precalculated position so that can carry out smoothly the insertion of above-mentioned all parts and draw out operation.
At the excircle of the end portion of the leading axle 30 of direction of insertion, be formed for making the level and smooth inclined surface 30b of insertion of auxiliary unit 40 grades.When leading axle 30 is fixed to the precalculated position, in the end portion (inclined surface 30b) of the leading axle 30 of direction of insertion from the slightly outside outstanding (see figure 8) of the outer surface of framework 50.
Shown in Fig. 9 A and 9B, auxiliary unit 40 by unit main body 45, rotatably be attached to the side surface of unit main body 45 two breech locks 41, with the movement of two breech locks 41 be delivered to clamper 43 axle 42, have an end and be connected to that axle 42 and the other end are folding sees Figure 10 towards clamper 43, the absorption component tolerance of outside with the handle 66(on the outer surface of guaranteeing to be fixed to the web-like spring 44 of warm-up mill 14 and to be attached at unit main body 45) form.Note as shown in Figure 10, the attachment location skew of the handle 66 of the position of rotation of the control lever part 41c of two breech locks 41 on the unit main body 45, this prevents that handle 66 and the rotary manipulation of control lever part 41c from disturbing mutually.
Central authorities in unit main body 45 arrange the patchhole 45b that axially penetrates.Side surface in unit main body 45 forms flange 45c.When replacing warm-up mill 14, in the position of the openend of warm-up mill 14 contact ring 65 is being set.The overall diameter of the interior diameter of patchhole 45b and leading axle 30 big or small roughly the same.
The shape of two breech locks 41 is identical.In two breech locks 41 each has rotating part 41a, shaft portion 41b and control lever part 41c, wherein rotating part 41a forms at one end and its side surface is formed semi-circular shape, thereby shaft portion 41b is arranged on the center that the thickness direction of rotating part 41a is departed from the inside of rotating part 41a, and control lever part 41c is arranged to respect to rotating part 41a.Thereby two breech locks 41 are attached to that unit main body 45 rotating part 41a stride across patchhole 45b toward each other.
The first end of axle 42 is connected to the respective shaft part 41b of breech lock 41.In addition, at the other end with respect to the clamper 43 of the end that is connected to axle 42, thereby the folded opposite face of holding piece 43a is to the inner surface 45a of unit main body 45.Shown in Fig. 9 A and 9B, web-like spring 44 is inserted between step-like spring receiving unit 45d and the breech lock 44.Axle 42 is inserted in the spring 44, and breech lock 41 by the elastic force of spring 44 at be resiliently biased if having time outward direction.Yet it is that the lock cell 41d(of U-shaped sees Figure 10 that each breech lock 41 has side surface).
The control lever part 41c that Fig. 9 A shows two breech locks 41 guides outwardly away from each other.At this moment, the shaft portion 41b of breech lock 41 is placed near unit main body 45.Thereby it is large that the interval between the holding piece 43a of clamper 43 and the inner surface 45a of unit main body 45 becomes, shown in L1.As shown in Figure 7, interval L1 is more bigger than the thickness of absorber 14c.The control lever part 41c that Figure 10 also shows two breech locks 41 guides outwardly away from each other, as the situation among Fig. 9 A.
Shown in Fig. 9 B, when the control lever part 41c of two breech locks 41 inwardly rotated each other, the shaft portion 41b of breech lock 41 moved in the direction of leaving unit main body 45.Along with breech lock 41 away from the center, axle 42 and clamper 43 are also mobile, next this reduced the interval between the inner surface 45a of the holding piece 43a of clamper 43 and unit main body 45, shown in L2.Interval L2 is more smaller than the thickness of absorber 14c.
(replacing the process of warm-up mill)
Next, the process that is used for replacing warm-up mill 14 is described.When arriving, warm-up mill 14 replaces warm-up mill 14 to satisfy the demand of above-mentioned image processing system when its service life end maybe will be replaced.
Figure 11 is the block diagram that illustrates for the process of replacing warm-up mill 14.As described in Figure 11, in step 1, by using guard block 64 from warm-up mill 14 interior extraction lamp boxes 63.Described this operation owing to above with reference to figure 5, omitted it here and be repeated in this description.The lamp box 63 of extracting out is covered by rigid protective parts 64.Thereby lamp box 63 can not damaged in its replacement operation process carelessly.
Next, in step 2, as shown in Figure 6, insert leading axle 30 from the through hole 59a of shell 59 in direction as shown by arrow B.The inner cylinder 59b of shell 59, absorber 14d and hold assembly 48 guiding and clamping leading axles 30.When leading axle 30 is inserted into the precalculated position, in the 30a of the crack of leading axle 30, inserts detent 31, thereby finish the attached of leading axle 30.
Then, in step 3, unclamp wing screw 54 to extract the hold assembly 48 of clamping central unit 46, bearing 51, spring 52, detent plate 53 etc. out in direction as shown by arrow B.At this moment, the end portion of leading axle 30 is slightly outwards outstanding from the outer surface of framework 50.Thereby, in company with the guiding of leading axle 30, can extract smoothly hold assembly 48 out and do not collide the openend of framework 50.Note since when extracting hold assembly 48 out central unit 46 from warm-up mill 14 separation, central unit 46 and bearing 51 by the restoring force of spring 52 so that contact with detent plate 53.
In Fig. 6, attached leading axle 30 and extracting hold assembly 48 out, and in Fig. 8, extracted hold assembly 48 out.
Next, in step 4, by holding handle 66, insert auxiliary unit 40 from a side of the end portion of leading axle 30 with inclined surface 30b.At this moment, shown in Fig. 9 A, the control lever part 41 of breech lock 41 is guided outwardly away from each other.Correspondingly, it is large that the interval between the inner surface 45a of unit main body 45 and the holding piece 43a of clamper 43 becomes, shown in L1.
Figure 12 A and 12B are the figure that the relation between plane X along Fig. 7-absorber 14c of X intercepting and the holding piece 43a of clamper 43 is shown.Figure 12 A is the figure when being illustrated in auxiliary unit 40 and being inserted into warm-up mill 14, and Figure 12 B is the figure when auxiliary unit 40 being shown being attached to absorber 14c.
Shown in Figure 12 A, in the inner circumferential portion of absorber 14c, thereby formation can insert clamper 43 holding piece 43a two strippings and slicings 67 so that two strippings and slicings 67 toward each other.As shown in Figure 7, when auxiliary unit 40 was inserted in the warm-up mill 14, the holding piece 43a of clamper 43 passed stripping and slicing 67 and is placed in the left side of the absorber 14c among Fig. 7.When the flange 45c of unit main body 45 contacts with the outer surface of framework 50, stop the insertion of auxiliary unit 40.
When holding handle 66 in the auxiliary unit 40 that the direction rotation shown in the arrow of Figure 12 A inserts, the holding piece 43a rotation of clamper 43 leave stripping and slicing 67 and shown in Figure 12 B in the face of other inner circumferential portion rather than the stripping and slicing 67 of absorber 14c.In other words, other inner circumferential portion of absorber 14c is clamp-oned between the holding piece 43a of the inner surface 45a of unit main body 45 and clamper 43.
When the control lever part 41c of breech lock 41 inwardly rotates each other as shown in figure 13, the holding piece 43a of clamper 43 is dragged to a side of unit main body 45 by axle 42, this is the inner circumferential portion of clamping absorber 14c flexibly between the inner surface 45a of the holding piece 43a of clamper 43 and unit main body 45 next.Therefore, auxiliary unit 40 is attached to warm-up mill 14 by absorber 14c.
Then, in step 5, from image processing system, extract the warm-up mill 14 that is in high temperature out by the handle 66 of holding auxiliary unit 40.At this moment, the inner cylinder 59b of shell 59 is clamping leading axle 30 reliably, and the inner circumferential portion of absorber 14d is slided at the external peripheral surface of leading axle 30.Thereby, do not need each other clamping to be in warm-up mill 14 parts of high temperature, this becomes possibility so that the level and smooth and safety of warm-up mill 14 is extracted out.Even after the extraction of warm-up mill 14, central unit 47 and hold assembly 49 keep the former state of oneself.Figure 14 shows the warm-up mill 14 that is being drawn out of.
Next, in step 6, auxiliary unit 40 is appended to for the new warm-up mill 14 of replacing, and by loading warm-up mill 14 with leading axle 30.Note new warm-up mill 14 is not shown in the drawings, but its basic configuration is identical.
Then, in step 7, extract auxiliary unit 40 out from warm-up mill 14.In step S8, by using leading axle 30 attached hold assemblies 48.In step 9, releasing brake device 31 is to extract leading axle 30 out.In step 10, the lamp box 63 that covering is had guard block 64 is inserted in the warm-up mill 14, and then extracts hold assembly 48 out from warm-up mill 14, thereby finishes the attached of lamp box 63.
Note because the attached of new warm-up mill 14 in step 6 is the inverse operation of the extraction of warm-up mill 14 in step 5, the extraction of the auxiliary unit 40 in step 7 is attached inverse operation of the auxiliary unit 40 in step 4, the attached of hold assembly 48 in step 8 is the inverse operation of the extraction of the hold assembly 48 in step 3, the extraction of the leading axle 30 in step 9 is attached inverse operation of the leading axle 30 in step 2, and the attached of the lamp box 63 in step 10 is the inverse operation of the extraction of the lamp box 63 in step 1, omits their description here.
(the second embodiment)
Below with reference to accompanying drawing the second embodiment of the present invention is described.Equally, in this embodiment, aid forms (seeing Figure 15) by leading axle 30 and auxiliary unit 40.
Leading axle 30 is made by the metallic cylindrical body with rigidity.As shown in figure 15, distance between the Length Ratio left and right sides framework 50 of leading axle 30 is bigger, and the interior diameter of the inner cylinder 59b of the interior diameter of the interior diameter (see figure 6) of the overall diameter of leading axle 30 and hold assembly 48, absorber 14d and shell 59 is big or small roughly the same.Even see Fig. 8 when extracting lamp box 63(fully out from the framework 50 of fixation unit 12) time, leading axle 30 also is configured to be installed in and prevents from absorber 14c and 14d that the heat of the corresponding end of warm-up mill 14 shifts.
In the part of the cylindrical portions may of leading axle 30, form crack 30a.Leading axle 30 is formed when leading axle 30 is fixed to fixation unit 12, so that the detent 31 that arranges in fixation unit 12 can enter from the direction shown in arrow Figure 15 leading axle 30.In addition, in the end portion of the leading axle 30 of direction of insertion, be formed for making the level and smooth inclined surface 30b of installation of auxiliary unit 40.
When leading axle 30 is attached to fixation unit 12, insert leading axle 30 by the through hole 59a that in shell 59, arranges from the back side (left side Figure 15) of image processing system.At this moment, leading axle 30 is inserted into fixation unit 12, until the right side among front baffle 50(Figure 15 of the inclined surface 30b of leading axle 30 and image processing system) slightly collision.Then, when reducing detent 31 in as shown by arrows direction and being inserted into detent 31 among the 30a of crack, the precalculated position is arrived in leading axle 30 lockings (fix).
Note 68 the position of pushing pin on the position of rotation of control lever part 41c of two breech locks 41 and the unit main body 45 from the attachment location skew of handle 66, this prevents that again handle 66 and control lever part 41c(from seeing Figure 10) rotary manipulation disturb mutually.
This embodiment and the first embodiment different are to have pushing pin in auxiliary unit of being arranged on 40 (separative element) 68.Setting pushes pin 68 with corresponding to because warm-up mill 14 is not easy to the situation of releasing from warm-up mill 14 because of thermal deformation so that be in the auxiliary unit 40 of high temperature.In this case, force manually to extract out auxiliary unit 40 by holding warm-up mill 14.Yet because its high temperature, it is dangerous processing warm-up mill 14, and needs the time that auxiliary unit 40 is released from warm-up mill 14, and next this reduced the efficient of operation itself.In order to prevent this problem, applying so that can easily and safely extract auxiliary unit 40 out from warm-up mill 14 of the axial power from auxiliary unit 40 of warm-up mill 14.
Shown in Figure 15 and 16, each pushes pin 68 by forming with respect to the major diameter part 69 of the end surfaces of warm-up mill 14 with respect to the small diameter portion 70 of the control lever part 41c of breech lock 41.Border between major diameter part 69 and small diameter portion 70 forms step portion 72.In addition, near the partial fixing locking ring 73 the head part of small diameter portion 70.
As shown in figure 16,68 the small diameter portion 70 of pushing pin is inserted near the through hole 74 of the part the excircle part that is arranged on unit main body 45, and is supported in the mode that can be moved at the direction of principal axis of warm-up mill 14 by the guiding of through hole 74.In the side with respect to the control lever part 41c of through hole 74, form the recessed stripping and slicing part 75 that has greater than the interior diameter of the overall diameter of locking ring 73.
68 the step portion 72 of pushing pin is configured to the first openend with respect to through hole 74, and locking ring 73 is configured to the basal surface with respect to recessed stripping and slicing part 75, and this prevents from pushing pin when processing auxiliary unit 40 and 68 drops from unit main body 45.
In addition, push pin 68 arranging such as Figure 17 A position relative with the end surfaces with warm-up mill 14 shown in the dotted line roundlet 71 among the 17B, and as the position setting relative with the control lever part 41c of breech lock 41 of Figure 18 A be shown in push pin 68.
Inwardly the outer surface of the unit main body 45 of guide is slightly outstanding each other so that small diameter portion 70 is from the breech lock 41 shown in Figure 18 B for 68 the length of pushing pin.On the other hand, push pin 68 length so that major diameter part 69 is pressed by the control lever part 41c of breech lock 41 and the excircle of the unit main body 45a when guiding outwardly away from each other from the breech lock 41 shown in Figure 18 A is partly outstanding.
In Figure 18 A, the control lever part 41c of two breech locks 41 guides outwardly away from each other.At this moment, the shaft portion 41b of breech lock 41 is placed near unit main body 45.Thereby it is large that the interval between the holding piece 43a of clamper 43 and the inner surface 45a of unit main body 45 becomes, shown in L1.As shown in figure 19, interval L1 is slightly larger than the thickness of absorber 14c.
At this moment, the 68 control lever part 41c by breech lock 41 that push pin press, and this is so that major diameter part 69 is slightly outstanding from the excircle part of unit main body 45a.Be similar to the situation of Figure 18 A, the control lever part 41c that Figure 19 also shows two breech locks 41 guides outwardly away from each other.
Shown in Figure 18 B, when the control lever part 41c of two breech locks 41 inwardly rotated each other, the shaft portion 41b of breech lock 41 moved in the direction of leaving unit main body 45.Along with breech lock 41 away from the center, axle 42 and clamper 43 are also mobile, next this reduced the interval between the side surface 45a of the holding piece 43a of clamper 43 and unit main body 45, shown in L2.Interval L2 is more smaller than the thickness of absorber 14c.At this moment, the control lever part 41c of breech lock 41 is from 68 skews of pushing pin, and major diameter part 69 is contained among the unit main body 45a.On the contrary, small diameter portion 70 is outstanding from the outer surface of unit main body 45.Major diameter part 60 is arranged for the large as far as possible contact area that obtains with warm-up mill 14.
Closely-spaced L2 so that auxiliary unit 40 engage with absorber 14c.Thereby warm-up mill 14 forms as one each other with auxiliary unit 40, and this is next so that can be inserted into auxiliary unit 40 fixation unit 12 and extract auxiliary unit 40 out from fixation unit 12.In addition, shown in Figure 18 A, large-spacing L1 so that auxiliary unit 40 breaks away from absorber 14c and so that 68 the major diameter part 69 of pushing pin promote to see Figure 19 by ring 65(with the end surfaces with warm-up mill 14 from the excircle of unit main body 45a is partly outstanding in as shown by arrows direction).Therefore, auxiliary unit 40 is automatically separated from warm-up mill 14.Notice that ring 65 makes the insulativity that this provides by having stable on heating synthetic resin.Notice that major diameter part 69 is arranged on respect to (face) and push pin on the side of end surfaces of 68 warm-up mill 14, thereby increase and the opposed area of the end surfaces of warm-up mill 14.
(replacing the process of warm-up mill)
Next, the process that is used for replacing warm-up mill 14 is described.Similar to the situation of the first embodiment, when arriving, warm-up mill 14 replaces warm-up mill 14 to satisfy the demand of above-mentioned image processing system when its service life end maybe will be replaced.
Figure 11 is the block diagram that illustrates for the process of replacing warm-up mill 14.As described in Figure 11, in step 1, by using guard block 64 from warm-up mill 14 interior extraction lamp boxes 63.Owing to having described this operation in the above with reference to figure 5, having omitted it here and be repeated in this description.
Next, in step 2, as shown in Figure 6, insert leading axle 30 from the through hole 59a of shell 59 in direction as shown by arrow B.The inner cylinder 59b of shell 59, absorber 14d and hold assembly 48 guiding and clamping leading axles 30.When the insertion of leading axle 30 arrives the precalculated position, in the 30a of the crack of leading axle 30, insert detent 31, thereby finish the attached of leading axle 30.
Then, in step 3, unclamp wing screw 54 to extract the hold assembly 48 of clamping central unit 46, bearing 51, spring 52, detent plate 53 etc. out in direction as shown by arrow B.At this moment, the end portion of leading axle 30 is slightly outwards outstanding from the outer surface of framework 50.Thereby, in company with the guiding of leading axle 30, can extract smoothly hold assembly 48 out and do not collide the openend of framework 50.
The position that Fig. 6 has shown leading axle 30 attached and has been drawn out of clamping part 48, and Fig. 8 shows the hold assembly 48 that is drawn out of.
Next, in step 4, by holding handle 66, insert auxiliary unit 40 from a side of the end portion of leading axle 30 with inclined surface 30b.At this moment, shown in Figure 18 A, the control lever part 41 of breech lock 41 is guided outwardly away from each other.Correspondingly, the interval between the inner surface 45a of unit main body 45 and the holding piece 43a of clamper 43 is held greatly, shown in L1.In addition, push pin 68 major diameter part 69 is partly outstanding from the excircle of unit main body 45.
Figure 17 A and 17B are the figure that illustrates along the relation between the holding piece 43a of the absorber 14c of the plane Y-Y among Figure 15 intercepting and clamper 43.Figure 17 A is the figure of auxiliary unit 40 when being inserted into warm-up mill 14, and Figure 17 B is the figure of auxiliary unit 40 when being attached to absorber 14c.
Shown in Figure 17 A and 17B, in the inner circumferential portion of absorber 14c, thereby formation can insert clamper 43 holding piece 43a two strippings and slicings 67 so that two strippings and slicings 67 toward each other.As shown in Figure 19, when auxiliary unit 40 was inserted in the warm-up mill 14, the holding piece 43a of clamper 43 passed stripping and slicing 67 and is placed on the left side of the absorber 14c among Figure 19.When 68 the major diameter part 69 of pushing pin by encircling 65 when beginning to contact with the end surfaces of warm-up mill 14, stop the insertion of auxiliary unit 40.
Shown in Figure 17 A, when when holding handle 66 in the direction rotation auxiliary unit 40 shown in the arrow, the holding piece 43a of clamper 43 from stripping and slicing 67 rotations and shown in Figure 17 B in the face of other inner circumferential portion of absorber 14c.In other words, other inner circumferential portion of absorber 14c is clamp-oned between the holding piece 43a of the inner surface 45a of unit main body 45 and clamper 43.Even rotation auxiliary unit 40, shown in Figure 17 B, push pin 68 position 71 also with respect to (towards) end surfaces of warm-up mill 14.
When the control lever part 41c of breech lock 41 shown in Figure 15 and 18B inwardly rotates each other, control lever part 41c is from 68 separation of pushing pin, and the holding piece 43a of clamper 43 is dragged to a side of unit main body 45 by axle 42, this is the inner circumferential portion of clamping absorber 14c flexibly between the inner surface 45a of the holding piece 43a of clamper 43 and unit main body 45 next, and so that the end of 68 the small diameter portion 70 of pushing pin is outstanding from the outer surface 45b of unit main body 45.Therefore, auxiliary unit 40 is attached to warm-up mill 14 by absorber 14c.
Then, in step 5, from image processing system, extract the warm-up mill 14 that is in high temperature out by the handle 66 of holding auxiliary unit 40.Figure 15 will show when warm-up mill 14 will be drawn out of in direction as shown by arrow B.At this moment, the inner cylinder 59b of shell 59 is clamping leading axle 30 reliably, and the inner circumferential surface of absorber 14d slides at the external peripheral surface of leading axle 30.Thereby, do not need manual clamping to be in warm-up mill 14 parts of high temperature, this is so that the level and smooth and safe extraction of warm-up mill 14 becomes possibility.Even after the extraction of warm-up mill 14, central unit 47 and hold assembly 49 keep the former state of oneself.
Next, in step 6, auxiliary unit 40 is appended to for the new warm-up mill 14 of replacing, and by loading warm-up mill 14 with leading axle 30.Note new warm-up mill 14 is not shown in the drawings, but its basic configuration is identical.
Then, in step 7, extract auxiliary unit 40 out from warm-up mill 14.In step S8, by using leading axle 30 attached hold assemblies 48.In step 9, detent 31 is broken away to extract out leading axle 30.In step 10, the lamp box 63 that covering is had guard block 64 is inserted in the warm-up mill 14, and then extracts hold assembly 48 out from warm-up mill 14, thereby finishes the attached of lamp box 63.
The attached of the new warm-up mill 14 of attention in step 6 is the inverse operation of the extraction of warm-up mill 14 in step 5, and the extraction of the auxiliary unit 40 in step 7 is attached inverse operation of the auxiliary unit 40 in step 4.At this moment, the control lever part 41c of breech lock 41 is to inner rotary, and this is next so that 68 the major diameter part 69 of pushing pin is partly outstanding with by encircling 65 end surfaces of pressing warm-up mill 14 from the excircle of unit main body 45a.Thereby, can easily and rapidly separate auxiliary unit 40 from warm-up mill 14.The attached of hold assembly 48 in step 8 is the inverse operation of the extraction of the hold assembly 48 in step 3, the extraction of the leading axle 30 in step 9 is attached inverse operation of the leading axle 30 in step 2, and the attached of the lamp box 63 in step 10 is the inverse operation of the extraction of the lamp box 63 in step 1.
In addition, near the structure warm-up mill 14, lamp box 63 attached/attached operation etc. is basically the same as those in the first embodiment.
According to the first and second embodiment, image processing system, insert leading axle 30 from the direction shown in the arrow B as shown in Figure 6 (back side of image processing system).Yet, can image processing system, insert leading axle 30 with the fixed guide axle from the direction shown in the arrow A (front side of image processing system).
According to the first and second embodiment, shown in Figure 13 and 15, by using absorber 14c warm-up mill 14 and auxiliary unit 40 are connected to each other.Yet, for warm-up mill 14 and auxiliary unit 40 are connected to each other, the coupling part (for example recessed portion, projection and hole) that will engage with auxiliary unit 40 can be set in warm-up mill 14.
According to the first and second embodiment, the replacement of the warm-up mill 14 with thermal source has been described.Yet embodiments of the invention can be applied to have the replacement of the pressure roll of thermal source.
According to the first and second embodiment, warm-up mill 14 coatings have ink powder release agent and lubricating oil.Yet embodiments of the invention also can be applicable to use both fixation units (image processing system) of ink powder release agent and lubricating oil coating pressure roller 15 or warm-up mill 14 and pressure roll 15.
According to the second embodiment, using pushes pin 68 separates auxiliary unit 40 from warm-up mill 14.Yet, can use the separative element that for example rotates control lever with other configuration, the operating point of this separative element is pressed the end surfaces of warm-up mill 14.
(the 3rd embodiment)
Next, description is as the 3rd embodiment of another pattern of the present invention.
Shown in Figure 20 A to 20F, backing roll parts 170 mainly by backing roll 171, rotatably supported roller 171 the first axle 172, the first axle 172 is fixed to a free-ended roller plate 173, is arranged on second axle 174 of cardinal extremity of roller plate 173 and the clamper plate 175 that rotatably supports the second axle 174.
As described below, when replacing warm-up mill 14, the warm-up mill 14 that is in about 200 ℃ high temperature passes from the top of backing roll 171.Thereby backing roll 171 heat resistances are outstanding and made by material identical with front surface layer 14b or same type, see Fig. 4 with the front surface layer 14b(that does not damage warm-up mill 14).According to this embodiment, the front surface layer 14b of warm-up mill 14 is by for example PTFE(teflon) resin, PFA(tetrafluoroethylene-perfluoroalkyl vinyl ether copolymer) resin or FEP(tetrafluoraoethylene-hexafluoropropylene copolymer) fluororesin of resin makes.Backing roll 171 is made by the material (being fluororesin in this embodiment) of or same type identical with these materials.
In addition, in order to prevent the front surface of backing roll 171 damage warm-up mills 14 when warm-up mill 14 passes from the top of rotary supporting roller 171, backing roll 171 is formed cydariform, thereby the front surface of warm-up mill 14 contacts with the front surface point of backing roll 171.
Figure 20 A and 20B are the figure that backing roll parts 170 when extracting warm-up mill 14 from image processing system out or being inserted into warm-up mill 14 image processing system are shown.Figure 20 A is the side view of backing roll parts 170, and Figure 20 B is transverse plane figure.Shown in Figure 20 A, when the hook 176 in being arranged on roller plate 173 was inserted into (being locked in) and is formed on groove part 177 in the clamper plate 175, roller plate 173 was kept upright.Correspondingly, as shown in Figure 8, for replacing purpose, the opening portion 78 of backing roll 171 frame orienteds 50.
Figure 20 C and 20D illustrate as the figure of backing roll parts 170 by from the aforesaid operations position movement to following spare space the time.Figure 20 C is the side view of backing roll parts 170, and Figure 20 D is transverse plane figure.Shown in Figure 20 C, rise roller plate 173 to break away from (release) hooks 176 from groove part 177 in as shown by arrow E direction.Then roller plate 173 centers on the central Rotate 180 degree of the second axle 174 in direction as shown by arrow F.
Figure 20 E and 20F illustrate when backing roll parts 170 to be in figure when for subsequent use.Figure 20 E is the side view of backing roll parts 170, and Figure 20 F is transverse plane figure, and its central roll plate 173 hangs from the second axle 174.Correspondingly, for the purpose of replacing, backing roll 171 is seen Fig. 6 at the opening 78(away from framework 50) lower position be in for subsequent use.
Figure 21 is the figure that illustrates with respect to the layout of the backing roll parts 170 of auxiliary unit 40.According to this embodiment, use two help roll parts 170a and 170b.For example as shown in Figure 8, for the purpose of replacing, on the outer surface of framework 50 and the opening portion 78 of framework 50 near two help roll parts 170a and 170b are set, thereby can extract smoothly warm-up mill 14 out by the handle 66 of the hand-tight auxiliary unit of holding 40.
Especially, two backing roll parts 170a and 170b are set below warm-up mill 14.In addition, as shown in figure 21, the position of perpendicular line 179 of supposing to pass the O of roller central authorities of warm-up mill 14 is restricted to 0 °, be configured to stride across perpendicular line 179 in the angle from ± 30 ° to ± 60 ° scope perpendicular to the Central Line 180 of the roll shaft of backing roll 171a and 171b, preferably in the scope (being in this embodiment 45 °) from ± 40 ° to ± 50 °. Backing roll parts 170a and 170b arrange symmetrically about perpendicular line 179.By this layout, when extracting warm-up mill out by auxiliary unit 40, backing roll parts 170a and 170b stably support warm-up mill 14 and do not disturb with operation.Thereby, can be eliminated in the contingent labile factor of extraction place of warm-up mill 14.
According to this embodiment, under warm-up mill 14, be provided with two backing roll parts 170.Yet, approximately one or two backing roll parts 170 also can be set on warm-up mill 14.In this case, the mode identical with 170b with lower support roller member 170a need to be arranged on upper support roller 170 position that interference does not occur with the extraction of the warm-up mill 14 that is undertaken by auxiliary unit 40.Attention needs to have the gap of scheduled volume between upper support roller member 170 and warm-up mill 14, thereby does not increase the constraining force with respect to warm-up mill 14.
(replacing the process of warm-up mill)
Next, the process that is used for replacing warm-up mill 14 is described.When arriving, warm-up mill 14 replaces warm-up mill 14 to satisfy the demand of above-mentioned image processing system when its service life end maybe will be replaced.
Figure 22 is the block diagram that illustrates for the process of replacing warm-up mill 14.As described in Figure 22, in step 1, by using guard block 64 from warm-up mill 14 interior extraction lamp boxes 63.Owing to having described this operation in the above with reference to figure 5, having omitted it here and be repeated in this description.The lamp box 63 of extracting out covers has rigid protective parts 64.Thereby lamp box 63 can not damaged in its replacement operation process carelessly.
Next, in step 2, as shown in Figure 6, insert leading axle 30 from the through hole 59a of shell 59 in direction as shown by arrow B.The inner cylinder 59b of shell 59, absorber 14d and hold assembly 48 guiding and clamping leading axles 30.When the insertion of leading axle 30 arrives the precalculated position, in the 30a of the crack of leading axle 30, insert detent 31, thereby finish the attached of leading axle 30.
Then, in step 3, unclamp wing screw 54 to extract the hold assembly 48 of clamping central unit 46, bearing 51, spring 52, detent plate 53 etc. out in direction as shown by arrow B.At this moment, the end portion of leading axle 30 is slightly outwards outstanding from the outer surface of framework 50.Thereby, in company with the guiding of leading axle 30, can extract smoothly hold assembly 48 out and do not collide the openend of framework 50.Note since when extracting hold assembly 48 out central unit 46 from warm-up mill 14 separation, central unit 46 and bearing 51 by the restoring force of spring 52 so that contact with detent plate 53.
At this moment, because the backing roll 171 of backing roll parts 170 is in stand-by state (being placed on lower position) as shown in Figure 6, problem can not occur in extracting hold assembly 48 out.
Next, in step 4, by holding handle 66, insert auxiliary unit 40 from a side of the end portion of leading axle 30 with inclined surface 30b.At this moment, shown in Fig. 9 A, the control lever part 41 of breech lock 41 is guided outwardly away from each other.Correspondingly, it is large that the interval between the inner surface 45a of unit main body 45 and the holding piece 43a of clamper 43 becomes, shown in L1.
Figure 12 A and 12B are the figure that the relation between the holding piece 43a of absorber 14c that the arrow X-X direction from Fig. 7 sees and clamper 43 is shown.Figure 12 A is the figure when auxiliary unit 40 being shown being inserted in the warm-up mill 14, and Figure 12 B is the figure when auxiliary unit 40 being shown being attached to absorber 14c.
Shown in Figure 12 A, in the inner circumferential portion of absorber 14c, thereby formation can insert clamper 43 holding piece 43a two strippings and slicings 67 so that two strippings and slicings 67 toward each other.As shown in Figure 7, when auxiliary unit 40 was inserted in the warm-up mill 14, the holding piece 43a of clamper 43 passed stripping and slicing 67 and is placed on the left side of the absorber 14c among Fig. 7.When the flange 45c of unit main body 45 contacts with the outer surface of framework 50, stop the insertion of auxiliary unit 40.
When holding handle 66 and rotate auxiliary unit 40 at a predetermined angle, the holding piece 43a of clamper 43 break away from stripping and slicing 67 and shown in Figure 12 B in the face of other inner circumferential portion of clamper 43.When the control lever part 41c of breech lock 41 inwardly rotates each other as shown in figure 13, the holding piece 43a of clamper 43 is dragged to a side of unit main body 45 by axle 42, this is the inner circumferential portion of clamping clamper 43 flexibly between the inner surface 45a of the holding piece 43a of clamper 43 and unit main body 45 next.Therefore, auxiliary unit 40 is attached to warm-up mill 14 by absorber 14c.
Then, in step 5, help roll 171 is moved to its operating position and locking.In order to carry out this operation, the roller plate 173 shown in Figure 20 E is rotated 180 degree in the direction with respect to arrow F, and hook 176 is installed to groove part 177.Move by this, for the purpose of replacing, backing roll 171 is towards the opening portion 78 of framework shown in Figure 8 50.
Then, in step 6, from image processing system, extract the warm-up mill 14 that is in high temperature out by the handle 66 of holding auxiliary unit 40.At this moment, the inner cylinder 59b of shell 59 is clamping leading axle 30 reliably, and the inner circumferential portion of absorber 14d slides at the external peripheral surface of leading axle 30, and is firmly supported by backing roll 171a and 171b from the part of the outstanding warm-up mill 14 of framework 50.Along with the extraction of warm-up mill 14, backing roll 171a and 171b rotation.Figure 23 shows the warm-up mill 14 in holding state.As shown in figure 23, warm-up mill 14 is supported at two contact point P by backing roll 171a and 171b.Thereby, do not need manually clamping to be in the part of the warm-up mill 14 of high temperature, this is so that the level and smooth and safe extraction of warm-up mill 14 becomes possibility.
Even after the extraction of warm-up mill 14, central unit 47 and hold assembly 49 keep the former state of oneself.Figure 14 shows the warm-up mill 14 that is being drawn out of.
Next, in step 7, be attached to for the new warm-up mill 14(that replaces auxiliary unit 40 not shown), and by loading warm-up mill 14 with leading axle 30.At this moment, come so that the level and smooth insertion of warm-up mill 14 becomes possibility with backing roll 171a and 171b.
Then, in step 8, with backing roll 171a and 171b release and move to their spare space.Toply describe this operation with reference to figure 20A to 20F, thereby omitted the description of its repetition here.
Then, in step 9, extract auxiliary unit 40 out from warm-up mill 14.In step S10, by using leading axle 30 attached hold assemblies 48.In step 11, break away from detent 31 to extract leading axle 30 out.In step 12, the lamp box 63 that covering is had guard block 64 is inserted in the warm-up mill 14, and then extracts hold assembly 48 out from warm-up mill 14, thereby finishes the attached of lamp box 63.
Note because the attached of new warm-up mill 14 in step 7 is the inverse operation of the extraction of the warm-up mill 14 in step 6, the extraction of the auxiliary unit 40 in step 9 is attached inverse operation of the auxiliary unit 40 in step 4, the attached of hold assembly 48 in step 10 is the inverse operation of the extraction of the hold assembly 48 in step 3, the extraction of the leading axle 30 in step 11 is attached inverse operation of the leading axle 30 in step 2, and the attached of the lamp box 63 in step 12 is the inverse operation of the extraction of the lamp box 63 in step 1, therefore omits their description here.
According to the 3rd embodiment, when replacing warm-up mill 14, by using absorber 14c shown in Figure 13 warm-up mill 14 and auxiliary unit 40 are connected to each other.Yet, for warm-up mill 14 and auxiliary unit 40 are connected to each other, the coupling part (for example recessed portion, projection and hole) that will engage with auxiliary unit 40 can be set in warm-up mill 14.
According to the 3rd embodiment, backing roll is as support component.Yet, but also example can and have other outstanding support component of non-rotary arcuation at the ball of a for example direction rotation as having.
According to the 3rd embodiment, whole backing roll is made by fluororesin.Yet backing roll, ball or outstanding main body can be made by for example having the rigid material of metal, and are coated with fluororesin in its front surface layer.
According to the 3rd embodiment, the replacement of warm-up mill 14 has been described.Yet embodiments of the invention can be applied to have or do not have the replacement of the pressure roll 15 of thermal source.
According to the 3rd embodiment, warm-up mill 14 coatings have ink powder release agent and lubricating oil.Yet embodiments of the invention also can be applicable to use both fixation units (image processing system) of ink powder release agent and lubricating oil coating pressure roller 15 or warm-up mill 14 and pressure roll 15.
Next, the effect of the embodiment of the invention is described.According to embodiments of the invention, end portion in the extraction direction of roller is provided with the auxiliary unit coupling part, the auxiliary unit of the extraction of auxiliary heating roller is detachably connected to this auxiliary unit coupling part, and can be separated with fixation unit for the auxiliary unit of extracting warm-up mill out.Thereby fixation unit can dwindle than the fixation unit of describing in the patent document 1.In addition, auxiliary unit is separated with fixation unit in normal printing.Thereby auxiliary unit can not be heated to high temperature owing to the heat of fixation unit, and next this can improve workability and security when replacing roller.
According to embodiments of the invention, the heat that is integrally connected to warm-up mill shifts and prevents that parts are used as the auxiliary unit coupling part.Thereby, not needing to provide the roller with special-purpose auxiliary unit coupling part, next this solved the complex structure that makes fixation unit and increased its big or small problem.
According to embodiments of the invention, in the bearing hold assembly, be provided with the inner cylinder of clamping leading axle.Thereby when replacing roller, leading axle is by reliably clamping of inner cylinder, and this is next so that the safety of warm-up mill and smoothly to replace to be possible.
According to embodiments of the invention, be provided with lock cell to prevent the position movement of leading axle.Thereby the function of leading axle is carried out reliably, this next so that the safety of warm-up mill and smoothly replacing to be possible.
According to embodiments of the invention, leading axle is shifted by heat and prevents the parts clamping.Thereby the posture of leading axle is stablized, this next so that the safety of warm-up mill and smoothly replacing to be possible.
According to embodiments of the invention, aid that be used for to replace roller has the leading axle that removably is attached to fixation unit and externally is installed in the end of leading axle to insert and to extract out the auxiliary unit of warm-up mill, and leading axle can be separated from fixation unit with auxiliary unit.Thereby fixation unit can dwindle than the fixation unit of describing in the patent document 1.Leading axle separates with fixation unit with auxiliary unit in normal printing.Thereby leading axle and auxiliary unit can not be heated to high temperature owing to the heat of fixation unit, and this is next so that the simple and secure alternate of warm-up mill becomes possibility.
According to embodiments of the invention, even the roller that is in high temperature owing to its thermal source also can be by simple and replace safely.
According to embodiments of the invention, even the roller that is difficult to process owing to ink powder release agent or the lubricating oil of its coating also can be by simple and replace safely.
According to embodiments of the invention, auxiliary unit has the grip unit of auxiliary unit coupling part of clamping warm-up mill and the operating unit of carrying out the clamping operation of grip unit.Thereby auxiliary unit is connected to roller reliably.
According to embodiments of the invention, auxiliary unit has by the end surfaces of pressure roller to separate the separative element of auxiliary unit from warm-up mill.Thereby auxiliary unit is by fast and separate from warm-up mill reliably, and next this become possibility so that the fast replacing of roller operates.
According to embodiments of the invention, divide in the outer circumference portion of auxiliary unit with uniform interval and to have arranged a plurality of separative elements.Thereby, in the mode that integral body is very balanced auxiliary unit is separated from warm-up mill.
According to embodiments of the invention, each separative element has in the mode that can be moved at the direction of principal axis of roller by pushing pin that auxiliary unit supports.When pressing from the outstanding end of pushing pin of auxiliary unit, push pin press warm-up mill end surfaces so that auxiliary unit is separated from warm-up mill.Thereby the configuration of separative element is simple, and the structure of auxiliary unit complicated not.
According to embodiments of the invention, execution is pressed for the operating unit of the clamping operation of the grip unit of the auxiliary unit coupling part of niproll and is pushed pin.Thereby, when cancellation by grip unit during to the clamping of auxiliary unit coupling part, auxiliary unit is also separated from roller by pushing pin.In addition, leading axle and auxiliary unit are used in combination, and this is next so that the level and smooth and secure alternate operation of warm-up mill becomes possibility.
According to embodiments of the invention, used guard block.Thereby the collective that carries out smoothly lamp replaces, and can avoid the damage to lamp that causes in the replacement process of lamp.As a result, obtained high security.
According to embodiments of the invention, guard block is made by paper web.Thereby guard block is easy to obtain, and can reduce the cost of guard block.
According to embodiments of the invention, separative element can also separate auxiliary unit fast reliably from warm-up mill.Thereby it is more efficient that the replacement operation of roller can become.
The invention is not restricted to the special embodiment that discloses, under the prerequisite that does not depart from the scope of the invention, can change and modification.
Claims (9)
1. fixed cell comprises:
Warm-up mill;
Pressure roll can carry out pressure contact with described warm-up mill, and one in described warm-up mill and the described pressure roll can be inserted by the direction of principal axis along roller and extract out;
Be used for the opening of replacement, be formed in the framework relative with the roller that can be inserted into and extract out; And
Support component is arranged near the outside and described opening for replacing of described framework, to support the roller that will be drawn out of and insert.
2. fixed cell according to claim 1 is characterized in that,
At least the front surface portion of the described support component of touch roll is made by the material with slip attribute.
3. fixed cell according to claim 2 is characterized in that,
Described roller has the front surface layer of being made by fluororesin, and the part of the described support component of touch roll is made by fluororesin.
4. each described fixed cell in 3 according to claim 1 also comprises:
Rotatable rotor is arranged on the part of the described support component of touch roll at least.
5. each described fixed cell in 4 according to claim 1 is characterized in that,
Roller is by contacting support with the point of described support component.
6. each described fixed cell in 5 according to claim 1 is characterized in that,
Described support component can be at the operating position of backing roll and back and forth movement between away from the spare space of described operating position, and described fixed cell also comprises:
Lock cell remains on described operating position with described support component.
7. each described fixed cell in 6 according to claim 1 is characterized in that,
When the position on the perpendicular line of the roller central authorities of passing roller was restricted to 0 °, at least two support components were arranged on from the interior bottom part with backing roll of ± 30 ° to ± 60 ° scope.
8. fixed cell according to claim 7 is characterized in that,
Described at least two support components are arranged symmetrically about the central authorities of described perpendicular line.
9. according to claim 7 or 8 described fixed cells, it is characterized in that,
A top part that also is arranged on the roller that will be inserted into and extract out in the described support component is to have the gap between the described top part of roller and described support component.
Applications Claiming Priority (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2009-002811 | 2009-01-08 | ||
| JP2009002811 | 2009-01-08 | ||
| JP2009-086308 | 2009-03-31 | ||
| JP2009086308A JP5428470B2 (en) | 2009-03-31 | 2009-03-31 | Fixing apparatus and image forming apparatus having the same |
| JP2009-202663 | 2009-09-02 | ||
| JP2009202663A JP5593656B2 (en) | 2009-01-08 | 2009-09-02 | Fixing device, fixing device roller replacement assisting tool, fixing device roller replacement method, and image forming apparatus |
| CN2010100021476A CN101776859B (en) | 2009-01-08 | 2010-01-07 | Fixing unit, roller replacement auxiliary tool of fixing unit, and image forming apparatus |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010100021476A Division CN101776859B (en) | 2009-01-08 | 2010-01-07 | Fixing unit, roller replacement auxiliary tool of fixing unit, and image forming apparatus |
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| Publication Number | Publication Date |
|---|---|
| CN103034105A true CN103034105A (en) | 2013-04-10 |
| CN103034105B CN103034105B (en) | 2015-10-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310013590.7A Active CN103034105B (en) | 2009-01-08 | 2010-01-07 | The fixation unit of fixing ink powder image |
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Citations (3)
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|---|---|---|---|---|
| US5301000A (en) * | 1989-12-13 | 1994-04-05 | Siemens Nixdorf Informationssysteme Aktiengesellschaft | Fixing station for an electrophotographic printing or copying apparatus |
| US7082273B2 (en) * | 2002-01-02 | 2006-07-25 | Kabushiki Kaisha Toshiba | Image forming apparatus with electricity eliminating member |
| US20070217843A1 (en) * | 2006-03-14 | 2007-09-20 | Fuji Xerox Co., Ltd. | Cleaning device |
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2010
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5301000A (en) * | 1989-12-13 | 1994-04-05 | Siemens Nixdorf Informationssysteme Aktiengesellschaft | Fixing station for an electrophotographic printing or copying apparatus |
| US7082273B2 (en) * | 2002-01-02 | 2006-07-25 | Kabushiki Kaisha Toshiba | Image forming apparatus with electricity eliminating member |
| US20070217843A1 (en) * | 2006-03-14 | 2007-09-20 | Fuji Xerox Co., Ltd. | Cleaning device |
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| CN103034105B (en) | 2015-10-28 |
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