CN102530622B - Deflection correcting device, paper conveying device, and imaging device - Google Patents
Deflection correcting device, paper conveying device, and imaging device Download PDFInfo
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- CN102530622B CN102530622B CN201110410920.7A CN201110410920A CN102530622B CN 102530622 B CN102530622 B CN 102530622B CN 201110410920 A CN201110410920 A CN 201110410920A CN 102530622 B CN102530622 B CN 102530622B
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- Controlling Sheets Or Webs (AREA)
- Advancing Webs (AREA)
- Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
- Registering Or Overturning Sheets (AREA)
Abstract
The invention provides a deflection correcting device, capable of reliably correcting the deflection of the paper in a high speed regardless of the state of the front end of the paper. The deflection correcting device comprises a pair of conveying rollers (13a, 13b) for conveying paper, a load generating unit for applying a load torque (41) to the paper in a direction opposite to the conveying direction of the conveying rollers (13a, 13b), and a conveying roller driving unit for driving the conveying rollers (13a, 13b) and exerting conveying torques (42a, 42b) less than the load torque (41) toward the paper in the conveying direction. Each conveying roller (13a, 13b) can slide along the drive shaft (19) of the conveying rollers (13a, 13b) with the moving of the paper amid the process of being driven by the conveying roller driving unit.
Description
Technical field
The invention relates in the time of the conveyance of sheets crooked skew corrected equipment of proofreading and correct to paper, possess the sheet convey apparatus of this skew corrected equipment and possess the imaging device of this sheet convey apparatus.
Background technology
Since past, know while for example carrying out imaging on paper, under the state tilting at paper, do not carry and carry out the method for skew corrected.
As this skew correction method, known top of form is collided stop roller or baffle plate (shutter) thus etc. collision parts and the method for proofreading and correct or make the conveying roller of left and right there is the poor method of proofreading and correct of peripheral speed etc. by the conveying roller of unit control left and right and according to crooked amount.
In addition, in patent documentation 1, record a kind of sheet material conveyor, even also paper not bending but that be deep in roll gap also can positively carry out skew corrected while stopping roller for elasticity is collided by force, arrange by torque limiter and the conveying roller of transmission of drive force makes not produce excessive carrying capacity when the front end crash of paper after stopping roller at the upper reaches that stops roller.
Prior art document is as follows:
Patent documentation 1:(Japan) Unexamined Patent 7-267434 communique
Summary of the invention
The present invention wants the problem of solution as follows:
But the above-mentioned method that makes paper collision collision parts is vertical with throughput direction as prerequisite taking the front end of paper.
Therefore, for example exist on one side continuous forms being cut off carry out imaging on one side in the situation that, in the time that mistake is cut off top of form sideling, even if this front end crash is to colliding parts, also not only can not normally proofread and correct crookedly, become on the contrary the direction problem crooked along with front end that makes paper.
In addition, conveying roller is had in the poor method of peripheral speed, owing to being to apply certain pressure and the state that keeps and change gradually the direction of paper by two conveying rollers to paper, therefore deposit in this crooked corrected speed and have limitation, if think to proofread and correct at a high speed, likely there is the problem of the possibility of lax or gauffer in paper.
The present invention is in view of above problem, so that a kind of state that can can't help top of form to be provided than higher speed and the credible crooked skew corrected equipment of proofreading and correct to paper well, the imaging device that possesses the sheet convey apparatus of this skew corrected equipment and possess this sheet convey apparatus as object.
As follows for solving the means of above-mentioned problem:
In order to achieve the above object, skew corrected equipment of the present invention comprises: a pair of conveying roller, for delivery of paper; Load generation unit, to described paper to oppositely applying power with the throughput direction by described conveying roller; And conveying roller driver element, drive described conveying roller and described paper is applied to the power less than the power by described load generation unit to described throughput direction, wherein, described each conveying roller is in the driving by described conveying roller driver element, along with the movement of described paper can be slided along the axle of described conveying roller.
In this skew corrected equipment, comprising: roller follower, corresponding conveying roller described in each, with described conveying roller butt driven rotation; Separative element, makes described roller follower separate from described conveying roller; Application of force unit, to the predetermined fixed position application of force separately, according to the separation of the described roller follower by described separative element, makes described conveying roller return described fixed position to conveying roller described in each.
In addition, in this skew corrected equipment, be provided with revolution detecting unit, this revolution detecting unit is for detection of the revolution of conveying roller described in each, have in the time that described conveying roller both sides' revolution difference reaches below threshold value, control the unit that described separative element makes described roller follower separate from described conveying roller.
In addition, in this skew corrected equipment, described at least one, the fixed position of conveying roller is capable of regulating.
Sheet convey apparatus of the present invention is the sheet convey apparatus with above-mentioned skew corrected equipment.
Imaging device of the present invention is the imaging device of paper being carried to imaging section by above-mentioned sheet convey apparatus.
Effect of the present invention is as follows:
According to above skew corrected equipment of the present invention, sheet convey apparatus and imaging device, thus can can't help top of form state and than higher speed and credible well the crooked of paper proofreaied and correct.
Brief description of the drawings
Fig. 1 is the mode sectional drawing that represents the schematic configuration of imaging device of the present invention.
Fig. 2 is the block diagram of the imaging device outward appearance shown in presentation graphs 1.
Fig. 3 is the figure of the skew corrected mechanism that possesses of the imaging device shown in modal representation Fig. 1.
Fig. 4 is the enlarged drawing of the conveying roller part of the skew corrected mechanism shown in Fig. 3.
Fig. 5 is the figure that is illustrated in skew corrected mechanism intermediate roll (roll) the principal direction left side askew status shown in Fig. 3.
Fig. 6 is the figure of conveying roller sliding mode while being illustrated in left skew corrected.
Fig. 7 is illustrated in the figure that makes to carry roller released state from conveying roller after left skew corrected.
Fig. 8 is the figure that is illustrated in skew corrected mechanism intermediate roll (roll) the principal direction right side askew status shown in Fig. 3.
Fig. 9 is the figure of conveying roller sliding mode while being illustrated in right skew corrected.
Figure 10 is illustrated in the figure that makes to carry roller released state from conveying roller after right skew corrected.
Figure 11 is the figure that represents the relation of the revolution difference of crooked amount and left and right conveying roller.
Figure 12 is the diagram of circuit that is illustrated in the processing of the CPU execution of imaging device while carrying out skew corrected.
Figure 13 is the figure corresponding with Fig. 3 that represents the variation of skew corrected of the present invention mechanism.
Figure 14 is the enlarged drawing of the conveying roller part in the skew corrected mechanism of variation.
Nomenclature
10 imaging devices; 11 paper feed rollers; 12 paper supply rollers; 13a, 13b conveying roller; 14a, 14b carry roller; 15 springs; 16a, 16b Compress Spring; 17a, 17b torque limiter; 19 axle drive shafts; 20 imaging sections; 21 brackets; 22 guide rods; 23 guide rails; 24 driving motors; 25 drive pulleys; 26 driven pulleies; 27 belt member; 28 main boxes; 30 cylinder paper incorporating sections; 31 flange receiving portions; 32 flanges; 41 load torques; 42a, 42b delivery of torque.
Detailed description of the invention
With reference to the accompanying drawings the specific embodiment of the present invention is described.
First, with reference to Fig. 1 and Fig. 2, all structures of embodiment of the imaging device that possesses skew corrected equipment of the present invention are described.Fig. 1 and Fig. 2 are respectively the mode sectional drawing of schematic configuration and the block diagrams of this imaging device outward appearance of expression that represents imaging device of the present invention.
Imaging device 10 has imaging section 20, cylinder (roll) paper incorporating section 30, paper attraction delivery section 40 and cutting unit 50 as shown in Figure 1.Imaging section 20 is provided with as shown in Figure 2 bracket 21, guide rod 22, guide rail 23, driving motor 24, drive pulley 25, driven pulley 26, belt member 27, main box 28 and maintains recovers mechanism 29.In addition, cylinder paper incorporating section 30 is provided with flange receiving portion 31 and flange 32.
Wherein, imaging section 20 is set up guide rod 22 and guide rail 23 on not shown biside plate, is kept in mode that can frictional movement along arrow A direction in guide rod 22 and guide rail 23 bracket 21.
In addition, bracket 21 has the fluid drips of the ink droplet of all kinds of black (K), yellow (Y) that the imaging of oozing uses, pinkish red (M), blue or green (C) integratedly lifts one's head and supplies black odd-side to not shown each header record, and can be by the main sweep mechanism being made up of driving motor 24, drive pulley 25, driven pulley 26 and belt member 27 along the main scanning direction motion scan of arrow A direction.
Specifically, be fixed and remain in belt member 27 owing to being located at the not shown belt fixed part of bracket 21 rear side, therefore in the time that belt member 27 is rotated between the drive pulley 25 by driving motor 24 rotating drive and driven pulley 26, can move along main scanning direction (arrow A direction) thereupon.
In addition, driven pulley 26 by not shown tension spring laterally (direction of leaving with respect to drive pulley 25) be applied in pulling force.In addition, configure not shown coding sheet along main scanning direction, by reading coding sheet by the not shown coding inductor being located on bracket 21, thus the main sweep position of detection bracket 21.
In addition, in main sweep region in bracket 21, among posting field, attract delivery section 40 as the cylinder paper R of continuous forms by paper and along being transferred off and on the orthogonal direction (sub scanning direction: arrow B direction) of the main scanning direction of bracket 21.
In addition, among main sweep region, in the end side region of a side, be provided for preventing ink droplet set or ooze bad, to carry out each header record performance the maintaining of recovery that maintain recovering mechanism 29.Have, outside the bracket moving area of main scanning direction or in main sweep region, in other end side region, dismounting is freely provided with to hold to the odd-side of header record supplies black main box 28 of all kinds again.
On the other hand, cylinder paper incorporating section 30 is from two ends mounting flange 32 and be placed on the parts flange receiving portion 31 for the reel at cylinder paper R.Be provided with not shown support rollers in the inside of flange receiving portion 31, by the periphery butt of support rollers and flange 32, flange 32 rotated, can be by cylinder paper R paper supply.
It should be noted that, can, by being arranged to that a flange 32 and flange receiving portion 31 are fixed on to side wall side, make another flange 32 can be used as with flange receiving portion 31 structure that one moves along the Width of cylinder paper R, thus the different cylinder paper R of storage size.In addition, under graphic state, although one deck cylinder paper R has been installed in 30 of cylinder paper incorporating sections, also can be by the cylinder paper of different size in upper and lower multilayer setting.
In addition, cutting unit 50 is the parts for the cylinder paper R by after imaging section 20 imagings is cut off with predetermined length before discharge.
Once from the cylinder paper incorporating section 30 of imaging device 10 with said structure by the cylinder paper R of paper supply carrying way by thering is the paper feed roller 11 shown in Fig. 1, paper supply roller 12, conveying roller 13, carry the skew corrected structure of roller 14 etc. to carry out after skew corrected, carried to imaging section 20.Then, the bracket 21 of imaging section 20 carries out after imaging at the cylinder paper R to being sent into off and on, and by cutting unit 50, the position before discharging is cut off with predetermined length cylinder paper R, discharges to the not shown discharge tray that is configured in imaging device 10 fronts.
It should be noted that, in the time using the cylinder paper of multilayer, because the cylinder paper of each layer does not interfere with each other when the paper supply, therefore on the cylinder paper R after cut-out when imaging, can be withdrawn into paper feed roller 11, paper supply roller 12 and start to carry again after neighbouring.
In addition, a feature in imaging device 10 is to carry out skew corrected by the skew corrected mechanism with paper feed roller 11, paper supply roller 12, conveying roller 13 and conveying roller 14 etc.Therefore, below this skew corrected mechanism is described.
Then, with reference to Fig. 3 and Fig. 4, the details of skew corrected mechanism is specifically described.Fig. 3 is the figure of the skew corrected mechanism that possesses of the imaging device shown in modal representation Fig. 1, and Fig. 4 is the enlarged drawing of conveying roller part.
This skew corrected mechanism is provided with paper feed roller 11, paper supply roller 12, conveying roller 13a, 13b, conveying roller 14a, 14b, Compress Spring 16a, 16b, torque limiter 17a, 17b and not shown revolution detecting sensor.It should be noted that, in figure by the inscape shown in the symbol that comprises " a ", " b ", in the time not distinguishing individual expression, use the symbol that does not comprise " a ", " b " to represent.
In the structure shown in Fig. 3, paper feed roller 11 is the rollers for the cylinder paper R being set up is carried to throughput direction downstream side.Paper supply roller 12 is rollers of driven rotation with paper feed roller 11 face contacts, be constituted as can by be included in two ends arrange spring contact decorporation and contact or leave with paper feed roller 11.
In addition, in order to prevent flouring lax during by cylinder paper R paper supply by paper feed roller 11, by not shown load generation device, to cylinder paper R to oppositely applying back tension (back tension) with the throughput direction that gives load torque.
As shown in Figure 4, the axle drive shaft 19 (diagram in Fig. 3 is omitted) that insert at You center supports by torque limiter 17 conveying roller 13, and in the time that not shown main motor drives, axle drive shaft 19 rotates, and conveying roller 13 rotates thereupon.Torque limiter 17 so that delivery of torque 42 mode less than load torque 41 torque of transmitting to conveying roller 13 from axle drive shaft 19 is controlled, when produce more than delivery of torque torque time, be only that axle drive shaft 19 rotates.
Carry roller 14 be by spring 15 by conveying roller 13 application of forces, with the state of conveying roller 13 butts under with respect to the roller follower of conveying roller 13 driven rotations, can and conveying roller 13 between clamping conveyance of sheets.
In addition, conveying roller 13 is constituted as in the time of the power being applied in along axle drive shaft 19 directions and can on axle drive shaft 19, slides along axle drive shaft 19.Have again, conveying roller 13 is constituted as, be fixed on the Compress Spring 16 of the application of force unit on axle drive shaft 19 by one end, in the time not had along the power of axle drive shaft 19 directions, can automatically return the fixed position (position that Compress Spring 16 is natural length) on axle drive shaft 19.
It should be noted that, as described below, in the skew corrected mechanism shown in Fig. 3, although for conveying roller 13 being applied to the power to end along axle drive shaft 19 in the time that correction is crooked, and Compress Spring is located to the outside of conveying roller 13, but being set in inner side, extension spring also can obtain same effect.In addition, also can adopt for basis conveying roller 13 is supposed to the direction of the power applying compatibly makes conveying roller 13 return the structure of the fixed position on axle drive shaft 19.
When cylinder paper R conveying in the skew corrected mechanism that is provided with this structure, first clamp cylinder paper R by paper feed roller 11 and paper supply roller 12 and carry with the carrying capacity stronger than load torque 41, after cylinder paper front end is sent into conveying roller 13 and carried the roll gap part of roller 14, stop for the time being carrying.
Then, after paper feed roller 11 stops, making paper supply roller 12 not separate on one side and transmit carrying capacity to cylinder paper R, make axle drive shaft 19 rotate the driving that starts conveying roller 13 on one side.Under this state, transmitted to cylinder paper R by the delivery of torque 42 of conveying roller 13.
But owing to being set as the load torque 41 little value more reverse than throughput direction by torque limiter 17 to delivery of torque 42, therefore cylinder paper R is not transferred.In addition, be set as larger than load torque 41 in conveying roller 13 and the power of the roll gap part clamping cylinder paper R that carries roller 14, clamp under the state of cylinder paper R with carrying roller 14 at conveying roller 13, cylinder paper R is not also retracted to throughput direction reversing sense by load torque 41.
Therefore, in the time not producing crooked and cylinder paper in carrying shown in Fig. 3 in way and do not have the state loosely launching, conveying roller 13 rotates hardly, and axle drive shaft 19 dallies.
Then, by not shown revolution detecting sensor, the revolution of conveying roller 13a, 13b is detected respectively, even do not rotate or rotate a little also there is no difference on revolution time when detecting like this, the paper supply roller 12 that has made to separate again with paper feed roller 11 butts, transmit carrying capacity to cylinder paper R and start again to carry.
More than action can be controlled and realize each portion action of skew corrected mechanism by the not shown control part being made up of CPU, ROM, RAM etc.
Below, the skew corrected when crooked to throughput direction left side to cylinder paper R specifically describes with reference to Fig. 5 to Fig. 7.Fig. 5 is the figure corresponding with Fig. 3 that represents cylinder principal direction left side askew status, and Fig. 6 is the figure corresponding with Fig. 4 of conveying roller sliding mode while being illustrated in left skew corrected, and Fig. 7 is illustrated in the figure that makes to carry roller released state from conveying roller after left skew corrected.
As shown in Figure 5, when in the time that the conveying way intermediate roll paper R by paper feed roller 11 is crooked to the left, produce and relax in the region, left side of cylinder paper R, otherwise be nervous state at region, right side cylinder paper R.
When cylinder paper R being sent into conveying roller 13 under this state and carrying the roll gap part of roller 14, in the time that axle drive shaft 19 rotates, producing lax region, left side conveying roller 13a rotation conveying cylinder paper until this lax being eliminated.This is because because cylinder paper R is not strenuous status, even if therefore there is the torque conveyance of sheets that load torque 41 also can be low before lax being eliminated.
On the other hand, in the part of the conveying roller 13b in region, right side, due to cylinder paper, R is in tension, therefore with do not have when crooked equally, conveying roller 13b does not rotate.
But, along with being accompanied by the rotation of conveying roller 13a, the bending in region, left side is eliminated, it is mobile that cylinder paper R (does not have the position of askew status) to fixed position shown in dotted lines in Figure 5 gradually, and conveying roller 13b is subject to the export-oriented power from this cylinder paper R along axle drive shaft 19.Then, by this power conveying roller 13b as shown in Figure 6 along axle drive shaft 19 laterally (right side in figure) slide.
Then, gradually be corrected along with crooked, the conveying roller 13a in region, left side becomes and does not rotate gradually, in the time that cylinder paper R gets back to fixed position, become the state identical with Fig. 3, the revolution difference of conveying roller 13a, 13b disappear (becoming the state not rotating).Disappear revolution when consistent when the revolution detecting sensor by not shown detects such revolution difference, can be considered that skew corrected completes.
Here, because the conveying roller 13b after skew corrected is the state sliding to the right as shown in Figure 6, therefore need to prevent due to the antagonistic force of Compress Spring 16b produce crooked again.Therefore, by making to carry roller 14a, 14b to separate from conveying roller 13a, 13b by not shown driver element to applying power downwards in figure as shown in Figure 7 after skew corrected, thus liberation conveying roller 13b.Then,, owing to conveying roller 13b not being applied along the power of axle drive shaft 19 directions under this state, therefore, by the power that applies of Compress Spring 16b, conveying roller 13b returns fixed position.
At this moment, also can with make to carry roller 14a, 14b separating action interlock from conveying roller 13a, 13b, stop cylinder paper R to apply load torque 41.By like this, thereby can prevent when carrying roller 14a, 14b to separate intermediate roll paper R by throughput direction Fan Xiang La Swagger.
After this, make paper supply roller 12 and paper feed roller 11 butts, then start the conveying by paper feed roller 11.
Below, the skew corrected when crooked to throughput direction right side to cylinder paper R specifically describes with reference to Fig. 8 to Figure 10.Fig. 8 is the figure corresponding with Fig. 3 that represents cylinder principal direction right side askew status, and Fig. 9 is the figure corresponding with Fig. 4 of conveying roller sliding mode while being illustrated in right skew corrected, and Figure 10 is illustrated in the figure that makes to carry roller released state from conveying roller after right skew corrected.
As shown in Figure 8, when in the time that the conveying way intermediate roll paper R by paper feed roller 11 is crooked to the right, produce and relax in the region, right side of cylinder paper R, otherwise be nervous state at region, left side cylinder paper R.
When cylinder paper R being sent into conveying roller 13 under this state and carrying the roll gap part of roller 14, in the time that axle drive shaft 19 rotates, producing lax region, right side conveying roller 13b rotation conveying cylinder paper until this lax being eliminated.This is because because cylinder paper R is not strenuous status, even if therefore there is the torque conveyance of sheets that load torque 41 also can be low before lax being eliminated.
On the other hand, in the part of the conveying roller 13a in region, left side, due to cylinder paper, R is in tension, therefore with do not have when crooked equally, conveying roller 13a does not rotate.
But the bending in region, right side is eliminated along with being accompanied by the rotation of conveying roller 13b, cylinder paper R moves to fixed position shown in dotted lines in Figure 8 gradually, and conveying roller 13a is subject to the export-oriented power from this cylinder paper R along axle drive shaft 19.Then, by this power conveying roller 13a as shown in Figure 9 along axle drive shaft 19 laterally (in figure left side) slide.
Then, gradually be corrected along with crooked, the conveying roller 13b in region, right side becomes and does not rotate gradually, in the time that cylinder paper R gets back to fixed position, become the state identical with Fig. 3, the revolution difference of conveying roller 13a, 13b disappear (becoming the state not rotating).Disappear revolution when consistent when the revolution detecting sensor by not shown detects such revolution difference, can be considered that skew corrected completes.
Here, because the conveying roller 13a after skew corrected is the state sliding to the left as shown in Figure 9, therefore need to prevent due to the antagonistic force of Compress Spring 16a produce crooked again.Therefore, by making to carry roller 14a, 14b to separate from conveying roller 13a, 13b by not shown driver element to applying power downwards in figure as shown in figure 10 after skew corrected, thus liberation conveying roller 13a.Then,, owing to conveying roller 13a not being applied along the power of axle drive shaft 19 directions under this state, therefore, by the power that applies of Compress Spring 16a, conveying roller 13a returns fixed position.The basic thought situation crooked with a left side that uses Fig. 5 to Fig. 7 explanation is identical.
After this, make paper supply roller 12 and paper feed roller 11 butts, then start the conveying by paper feed roller 11.
Below, with reference to Figure 11, the relation of the revolution difference of the crooked amount to cylinder paper R and conveying roller 13a, 13b specifically describes.Figure 11 is the figure that represents the relation of this crooked amount and revolution difference.
In Figure 11, the longitudinal axis represent crooked amount (from 0 more away from crooked amount larger), transverse axis represents the absolute value of the revolution difference of conveying roller 13a and conveying roller 13b.In addition, as shown in the figure, the absolute value of the larger revolution difference of crooked amount is larger, along with the crooked difference that is gradually the corrected revolution absolute value that disappears is gradually tending towards 0 gradually.
Therefore, when the revolution difference of conveying roller 13a and conveying roller 13b disappears or when this absolute value reaches below certain threshold value, can be considered does not have crookedly, and skew corrected completes.
Below, with reference to Figure 12, the processing when carrying out skew corrected specifically describes.Figure 12 is the diagram of circuit that represents this processing.
In the imaging device 10 shown in Fig. 1, the processing shown in this diagram of circuit is to carry out by the CPU of not shown control part the program needing to carry out.
The CPU of control part, in the time cylinder paper R being carried out to paper supply to imaging section 20 according to print order, starts the processing shown in the diagram of circuit of Figure 12.
First, by paper feed roller 11, cylinder paper R is transported to conveying roller 13 and carries the roll gap part of roller 14 and stop (S11).Afterwards, paper supply roller 12 is separated from paper feed roller 11, remove the pressure (S12) to cylinder paper R, and the axle drive shaft 19 of conveying roller 13a and conveying roller 13b is driven to (S13) to throughput direction.
Now, when not producing when crooked, owing to there is no revolution difference between conveying roller 13a and conveying roller 13b, being therefore judged to be no (NO) and entering step S15 of step S14.On the other hand, when there is certain above revolution difference between conveying roller 13a and conveying roller 13b time, crooked as generation, carry out etc. pending until crooked correction finishes (S14 is for being (YES)).
Then, when crooked from initial when not producing or finishing due to the skew corrected of conveying roller 13a and conveying roller 13b, process and enter S15 from step S14, make to carry roller 14a, 14b to separate for the time being from conveying roller 13a, 13b, face contact (S15) once again afterwards.Thus, can make conveying roller 13a, 13b return fixed position by the elastic force of Compress Spring 16.
Afterwards, make the paper supply roller 12 separating in step S12 again to paper feed roller 11 face contacts, then start the conveying (S16) of cylinder paper R, the processing of skew corrected finishes.
According to the skew corrected mechanism in imaging device 10 described above, thus owing to not needing paper to collide Anywhere when the skew corrected, even if when therefore top of form mistake is cut off sideling, also can not can by its special impact carry out skew corrected.
In addition, owing to being the structure that conveying roller 13 can slide on axle drive shaft 19 when the skew corrected, therefore can in the time carrying out skew corrected, make cylinder paper R carry out skew corrected with respect to conveying roller 13 not slippages (slip) or with less slippage (slip) amount.And therefore, even with higher speed carry out the skew corrected of cylinder paper R, also can not cause and produce relaxing or gauffer of the paper that causes because of conveying roller 13 and the roll gap of carrying between roller 14.
In addition, by Compress Spring 16 is set, thereby can be reset at fixed position from carrying roller 14 to separate by the conveying roller 13 that has made to slide after skew corrected.Thus, can prevent the crooked generation again that causes due to the antagonistic force of Compress Spring 16.
[variation]
Although above embodiment is illustrated, in the present invention, the concrete structure of each portion or the content of processing are not limited to structure or the processing of above-mentioned embodiment explanation.
For example, as shown in FIG. 13 and 14, as application of force unit, can replace Compress Spring 16 and extension spring 36 is arranged on to the inner side of the conveying roller 13 on axle drive shaft 19.At this moment, in the time of skew corrected, slide extension spring 36 extended laterally by conveying roller 13, make to carry roller 14 to separate after due to extension spring 36 recuperability be returned fixed position.
In addition, make conveying roller 13 return fixed position and obtain unit, can be not limited to spring and be formed by mechanical part arbitrarily.For example can consider, can vacate in the both sides of conveying roller 13 the slidably space in region the screw actuator (solenoid) being fixedly installed is also set respectively, in the time that staggering from fixed position, conveying roller 13 by energising makes movable core outstanding to screw actuator, make it return to the structure of fixed position thereby promote conveying roller 13.
In addition, make to carry roller 14 and Compress Spring 16 also can on axle drive shaft 19, move by being set to add outside conveying roller 13, and before carrying, cylinder paper R makes it can be used as one to move, be the fixed position of capable of regulating conveying roller 13, thereby can become the paper that skew corrected mechanism can correspondingly-sized be varied in size.At least one that at this moment, can make conveying roller 13a side and conveying roller 13b side moves.In addition at this moment the fixed position of conveying roller 13, arranges unit fixing Compress Spring 16, so that in paper sheet delivery, can not be moved.In addition, to carrying roller 14 also can be set to equally fix.
In addition, not only can be constituted as imaging device divided by upper outside the present invention, can also be constituted as the sheet convey apparatus of conveyance of sheets or the crooked skew corrected equipment of proofreading and correct to paper.It can also be sheet material arbitrarily that crooked calibration object also can be not only paper.Certainly, cylinder shape or long size neither be necessary.
In addition, in the time that the present invention is constituted as imaging device, the integral structure of equipment is also not limited to the equipment shown in Fig. 1 and Fig. 2, for example, also applicable to the imaging device of electronic image recording mode.
Utilizability in industry
As mentioned above, according to skew corrected equipment of the present invention, sheet convey apparatus and imaging device, thereby can can't help top of form state and than higher speed and credible well the crooked of paper proofreaied and correct.
Therefore, the application of the invention, thus can make the credibility that sheet material is carried improve.
Claims (7)
1. a skew corrected equipment, is characterized in that, comprising:
A pair of conveying roller, for delivery of paper;
Roller follower, corresponding conveying roller described in each, with described conveying roller butt driven rotation;
Load generation unit, to described paper to oppositely applying power with the throughput direction by described conveying roller; And
Conveying roller driver element, drives described conveying roller and described paper is applied to the power less than the power by described load generation unit to described throughput direction, wherein,
Described each conveying roller is in the driving by described conveying roller driver element, along with the movement of described paper can be slided along the axle of described conveying roller.
2. skew corrected equipment according to claim 1, is characterized in that, comprising:
Separative element, makes described roller follower separate from described conveying roller;
Application of force unit, to the predetermined fixed position application of force separately, according to the separation of the described roller follower by described separative element, makes described conveying roller return described fixed position to conveying roller described in each.
3. skew corrected equipment according to claim 2, is characterized in that,
Be provided with revolution detecting unit, this revolution detecting unit is for detection of the revolution of conveying roller described in each,
Have in the time that described conveying roller both sides' revolution difference reaches below threshold value, control the unit that described separative element makes described roller follower separate from described conveying roller.
4. skew corrected equipment according to claim 2, is characterized in that, described at least one, the fixed position of conveying roller is capable of regulating.
5. skew corrected equipment according to claim 3, is characterized in that, described at least one, the fixed position of conveying roller is capable of regulating.
6. a sheet convey apparatus, is characterized in that, has according to the skew corrected equipment described in any one in claim 1 to 5.
7. an imaging device, is characterized in that, by sheet convey apparatus according to claim 6, paper is carried to imaging section.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010-280708 | 2010-12-16 | ||
| JP2010280708A JP5625871B2 (en) | 2010-12-16 | 2010-12-16 | Skew correction device, paper transport device, and image forming device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102530622A CN102530622A (en) | 2012-07-04 |
| CN102530622B true CN102530622B (en) | 2014-07-30 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110410920.7A Expired - Fee Related CN102530622B (en) | 2010-12-16 | 2011-12-12 | Deflection correcting device, paper conveying device, and imaging device |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP5625871B2 (en) |
| CN (1) | CN102530622B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6111615B2 (en) * | 2012-11-26 | 2017-04-12 | 株式会社リコー | Image forming apparatus |
| FR3004174B1 (en) * | 2013-04-09 | 2015-08-21 | Batscap Sa | DEVICE FOR SEPARATING AT LEAST TWO STRANDS OF ADJACENT MATERIAL AND SYSTEM INCLUDING SUCH A DEVICE |
| ES2948799T3 (en) | 2014-06-10 | 2023-09-19 | Nippon Primex Inc | Printing device and paper supply method |
| CN109592466A (en) * | 2018-12-21 | 2019-04-09 | 经纬智能纺织机械有限公司 | A kind of rectification detection device of ribbon lap machine belt |
| CN111890809B (en) * | 2020-08-13 | 2022-05-20 | 深圳精确信息技术有限公司 | Anti-blocking printer for three-link paper printing |
| CN113771510B (en) * | 2021-08-26 | 2022-03-11 | 北京辰光融信技术有限公司 | Printing correction mechanism, printer and printing method |
| CN116119433B (en) * | 2022-11-18 | 2023-08-11 | 浙江金纬片板膜设备制造有限公司 | Super-strong stretch film extrusion production line and production process thereof |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06206329A (en) * | 1993-01-12 | 1994-07-26 | Shinko Electric Co Ltd | Thermal color printer |
| JPH07267434A (en) * | 1994-03-30 | 1995-10-17 | Ricoh Co Ltd | Sheet conveying device |
| JP2928228B1 (en) * | 1998-04-27 | 1999-08-03 | 静岡日本電気株式会社 | Skew correction mechanism |
| JP4069609B2 (en) * | 2001-10-23 | 2008-04-02 | 富士ゼロックス株式会社 | Transport device |
| US7775518B2 (en) * | 2007-08-30 | 2010-08-17 | Kabushiki Kaisha Toshiba | Sheet carrying device and sheet carrying method |
-
2010
- 2010-12-16 JP JP2010280708A patent/JP5625871B2/en not_active Expired - Fee Related
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2011
- 2011-12-12 CN CN201110410920.7A patent/CN102530622B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP5625871B2 (en) | 2014-11-19 |
| JP2012126537A (en) | 2012-07-05 |
| CN102530622A (en) | 2012-07-04 |
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