CN102530622A - 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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- CN102530622A CN102530622A CN2011104109207A CN201110410920A CN102530622A CN 102530622 A CN102530622 A CN 102530622A CN 2011104109207 A CN2011104109207 A CN 2011104109207A CN 201110410920 A CN201110410920 A CN 201110410920A CN 102530622 A CN102530622 A CN 102530622A
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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 to when conveyance of sheets the crooked skew corrected equipment of proofreading and correct, possess the sheet convey apparatus of this skew corrected equipment and possess the imaging device of this sheet convey apparatus paper.
Background technology
Since past, known when for example on paper, forming images, under paper bevelled state, 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. the collision parts and carry out method of correcting or make through the conveying roller about indivedual controls and according to crooked amount about conveying roller have the peripheral speed difference and carry out method of correcting etc.
In addition; Record a kind of sheet material conveyor in the patent documentation 1; It is not crooked but paper that be deep in the roll gap also can positively carry out skew corrected when stopping roller for even elasticity is collided by force yet; Upper reaches setting stopping roller is passed through torque limiter and the conveying roller of transmission of drive force, and feasible front end crash when paper does not produce excessive carrying capacity after stopping roller.
The prior art document is following:
Patent documentation 1: (Japan) spy opens flat 7-267434 communique
Summary of the invention
The problem that the present invention wants to solve is following:
Yet, the above-mentioned method that makes paper collision collision parts be the front end with paper vertical with throughput direction be prerequisite.
Therefore; Exist for example continuous forms to be cut off on one side to be carried out under the situation of picture, when mistake is cut off top of form sideling, even if this front end crash is to the collision parts on one side; Also correcting skew normally not only becomes the direction problem crooked along with front end that makes paper on the contrary.
In addition; Conveying roller is had in the method for peripheral speed difference; Owing to be to apply certain pressure and the state that keeps and change the direction of paper gradually to paper through two conveying rollers; Therefore deposit on this crooked corrected speed and have limitation, if think to proofread and correct at a high speed then the problem of the possibility of lax or gauffer might take place 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 credible be purpose to the crooked skew corrected equipment of proofreading and correct of paper, the imaging device that possesses the sheet convey apparatus of this skew corrected equipment and possess this sheet convey apparatus well.
The means that are used to solve above-mentioned problem are following:
In order to achieve the above object, skew corrected equipment of the present invention comprises: a pair of conveying roller is used for conveyance of sheets; The load generating unit, to said paper to oppositely applying power with throughput direction by said conveying roller; And conveying roller driver element; Drive said conveying roller and said paper is applied than the little power of power by said load generating unit to said throughput direction; Wherein, Said each conveying roller is in the driving by said conveying roller driver element, along with moving of said paper can be slided along the axle of said conveying roller.
In this skew corrected equipment, comprising: roller follower, corresponding each said conveying roller is with said conveying roller butt and driven rotation; Separative element makes said roller follower separate from said conveying roller; Application of force unit, to separately the predetermined fixed position application of force, the separation according to by the said roller follower of said separative element makes said conveying roller return said fixed position to each said conveying roller.
In addition; In this skew corrected equipment; Be provided with the revolution detecting unit; This revolution detecting unit is used to detect the revolution of each said conveying roller, has revolution difference as said conveying roller both sides and reaches threshold value when following, controls said separative element and makes said roller follower separate units from the said conveying roller.
In addition, in this skew corrected equipment, the fixed position of at least one said conveying roller is for adjusting.
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 portion through above-mentioned sheet convey apparatus.
Effect of the present invention is following:
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 well the crooked of paper proofreaied and correct than higher speed and credible.
Description of drawings
Fig. 1 is the mode sectional drawing of the schematic configuration of expression imaging device of the present invention.
Fig. 2 is the block diagram of expression imaging device outward appearance shown in Figure 1.
Fig. 3 is the figure of the skew corrected mechanism that possesses of modal representation imaging device shown in Figure 1.
Fig. 4 is the enlarged drawing of the conveying roller part of skew corrected mechanism shown in Figure 3.
Fig. 5 is the figure that is illustrated in skew corrected mechanism intermediate roll (roll) principal direction left side askew shown in Figure 3.
Fig. 6 is the figure of conveying roller sliding mode when being illustrated in left skew corrected.
Fig. 7 is illustrated in to make the figure that carries roller released state from the conveying roller after the left skew corrected.
Fig. 8 is the figure that is illustrated in skew corrected mechanism intermediate roll (roll) principal direction right side askew shown in Figure 3.
Fig. 9 is the figure of conveying roller sliding mode when being illustrated in right skew corrected.
Figure 10 is illustrated in to make the figure that carries roller released state from the conveying roller after the right skew corrected.
Figure 11 is the figure of relation of the revolution difference of expression crooked amount and left and right sides conveying roller.
Figure 12 is the diagram of circuit that is illustrated in the processing that the CPU of imaging device when carrying out skew corrected carries out.
Figure 13 be expression skew corrected of the present invention mechanism variation with the cooresponding figure of Fig. 3.
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 compression spring; 17a, 17b torque limiter; 19 axle drive shafts; 20 imaging portions; 21 carriages; 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 flanges bear portion; 32 flanges; 41 load torques; 42a, 42b delivery of torque.
The specific embodiment
Specific embodiments of the invention describes with reference to the accompanying drawings.
At first, with reference to Fig. 1 and Fig. 2 all structures of the 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 drawings and the block diagram of representing this imaging device outward appearance of the schematic configuration of expression imaging device of the present invention.
Wherein, imaging portion 20 sets up guide rod 22 and guide rail 23 on not shown biside plate, but is held with the mode along arrow A direction frictional movement at guide rod 22 and guide rail 23 bracket 21.
In addition; Carriage 21 has the fluid drips of the ink droplet of all kinds of black (K), yellow (Y) that oozes the usefulness that forms images, pinkish red (M), blue or green (C) integratedly to be lifted one's head, reaches the odd-side to each not shown header record supply China ink, and can be through the main sweep mechanism that is 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; Owing to being fixed, the not shown belt fixed part that is located at carriage 21 rear side remains on the belt member 27; Therefore when belt member 27 is rotated between by the drive pulley 25 of driving motor 24 rotating drive and driven pulley 26, thereupon can be mobile along main scanning direction (arrow A direction).
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, along the not shown coding sheet of main scanning direction configuration, through reading coding sheet, thereby detect the main sweep position of carriage 21 by the not shown coding inductor that is located on the carriage 21.
In addition, in the main sweep zone in carriage 21, among the posting field, attract delivery section 40 by paper and the direction (sub scanning direction: the arrow B direction) be transferred off and on of edge and the main scanning direction quadrature of carriage 21 as the cylinder paper R of continuous forms.
In addition, among the main sweep zone, in the end side zone of a side, be provided for preventing the ink droplet set or ooze bad, as to carry out each header record performance the keeping of recovery of keeping recovering mechanism 29.Have, in other the end side zone, dismounting freely is equipped with the main tank 28 that holds to the odd-side supply of header record China ink of all kinds outside the carriage moving area of main scanning direction or in the main sweep zone again.
On the other hand, cylinder paper incorporating section 30 is to be used for reel at cylinder paper R from two ends mounting flange 32 and be placed on flange and bear the parts in the portion 31.The inside of bearing portion 31 at flange is provided with not shown support rollers, and the periphery butt through support rollers and flange 32 makes flange 32 rotate, can be with cylinder paper R paper supply.
Need to prove, can be fixed on side wall side, make another flange 32 and flange bear portion 31 and can be used as the structure that one moves along the Width of cylinder paper R, thereby take in the different cylinder paper R of size through being arranged to that flange 32 and flange are born portion 31.In addition, under graphic state, although one deck cylinder paper R has been installed in 30 of cylinder paper incorporating sections, also can be with the cylinder paper of different size in multilayer setting up and down.
In addition, cutting unit 50 is to be used for the parts with the predetermined length cut-out before discharge with the cylinder paper R after being formed images by imaging portion 20.
From the cylinder paper incorporating section 30 of imaging device 10 with said structure by the cylinder paper R of paper supply in case during carrying the way by after having paper feed roller shown in Figure 1 11, paper supply roller 12, conveying roller 13, carrying the skew corrected structure of roller 14 etc. to carry out skew corrected, carried to imaging portion 20.Then, the carriage 21 of imaging portion 20 is after being carried out to picture to the cylinder paper R that is sent into off and on, and cylinder paper R is cut off with predetermined length by the position of cutting unit 50 before discharging, and discharges to being configured in imaging device 10 positive not shown discharge trays.
Need to prove, when using the cylinder paper of multilayer,, when therefore forming images on the cylinder paper R after cut-out, begin to carry again after can being withdrawn into it near paper feed roller 11, the paper supply roller 12 because the cylinder paper of each layer do not interfere with each other when paper supply.
In addition, a characteristic in the 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, describe in the face of this skew corrected mechanism down.
Then, with reference to Fig. 3 and Fig. 4 the details of skew corrected mechanism is specified.Fig. 3 is the figure of the skew corrected mechanism that possesses of modal representation imaging device shown in Figure 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, compression spring 16a, 16b, torque limiter 17a, 17b and not shown revolution detecting sensor.Need to prove, among the figure by the inscape shown in the symbol that comprises " a ", " b ", when not distinguishing individual expression, use the symbol that does not comprise " a ", " b " to represent.
In structure shown in Figure 3, paper feed roller 11 is to be used for the roller to the conveying of throughput direction downstream side with the cylinder paper R that is set up.Paper supply roller 12 is rollers of driven rotation with paper feed roller 11 face contacts, is constituted as to be contacted or to leave with paper feed roller 11 by the contact decorporation of the spring that is included in the two ends setting.
In addition, in order to prevent flouring lax during with cylinder paper R paper supply by paper feed roller 11, by not shown load generating device, to cylinder paper R to oppositely applying back tension (back tension) with the throughput direction that gives load torque.
Conveying roller 13 is as shown in Figure 4, is supported through torque limiter 17 by the axle drive shaft 19 that inserts at the center (diagram among Fig. 3 is omitted), and axle drive shaft 19 rotates when not shown main motor drives, and conveying roller 13 rotates thereupon.Torque limiter 17 so that delivery of torque 42 than the little mode of load torque 41 to controlling to conveying roller 13 torque transmitted from axle drive shaft 19, during torque more than producing delivery of torque, then only be that axle drive shaft 19 rotates.
Carry roller 14 be by spring 15 by to 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 and conveyance of sheets.
In addition, conveying roller 13 is constituted as when the power that is applied in along axle drive shaft 19 directions and can slides at axle drive shaft 19 upper edge axle drive shafts 19.Have again; Conveying roller 13 is constituted as; Be fixed on the compression spring 16 of the application of force unit on the axle drive shaft 19 through an end, when the power along axle drive shaft 19 directions there has not been, can return the fixed position (compression spring 16 is the position of natural length) on the axle drive shaft 19 automatically.
Need to prove; Be described below, in skew corrected mechanism shown in Figure 3, although in order conveying roller 13 to be applied the power to the end along axle drive shaft 19 when the correcting skew; And compression spring is located at the outside of conveying roller 13, also can obtain same effect but extension spring is set in the inboard.In addition, also can adopt the direction that is used for according to the power that conveying roller 13 hypothesis are applied compatibly to make conveying roller 13 return the structure of the fixed position on the axle drive shaft 19.
When in being provided with the skew corrected mechanism of this structure, cylinder paper R being carried; At first through paper feed roller 11 and paper supply roller 12 clamping cylinder paper R carrying than load torque 41 stronger carrying capacitys, stop for the time being carrying after cylinder paper front end sent into conveying roller 13 and the roll gap part of carrying roller 14.
Then, after paper feed roller 11 stops,, paper supply roller 12 transmits carrying capacity, Yi Bian make axle drive shaft 19 rotate the driving of beginning conveying roller 13 to cylinder paper R Yi Bian not separated.Under this state, transmit to cylinder paper R by the delivery of torque 42 of conveying roller 13.
Yet, owing to be set at the value littler to delivery of torque 42 than the oppositely directed load torque of throughput direction 41 through torque limiter 17, so cylinder paper R is not transferred.In addition; Power at conveying roller 13 and the roll gap part clamping cylinder paper R that carries roller 14 is set as bigger than load torque 41; Under the state of conveying roller 13 and conveying roller 14 clamping cylinder paper R, cylinder paper R is not retracted to the throughput direction reversing sense by load torque 41 yet.
Therefore, do not produce crooked in the way and cylinder paper when not having the state that loosely launches when being in shown in Figure 3 the conveying, conveying roller 13 rotates hardly, and axle drive shaft 19 dallies.
Then; Detect respectively through the revolution of not shown revolution detecting sensor conveying roller 13a, 13b; Even do not rotate or rotate a little when on revolution, also not having difference when detecting like this; Then make the paper supply roller 12 that separated again with paper feed roller 11 butts, transmit carrying capacity to cylinder paper R and begin again to carry.
More than action can be controlled each action of skew corrected mechanism through the not shown control part that is made up of CPU, ROM, RAM etc. and realize.
Below, the skew corrected of cylinder paper R when the throughput direction left side is crooked specifically described with reference to Fig. 5 to Fig. 7.Fig. 5 be expression cylinder principal direction left side askew with the cooresponding figure of Fig. 3, Fig. 6 be when being illustrated in left skew corrected the conveying roller sliding mode with the cooresponding figure of Fig. 4, Fig. 7 is illustrated in to make the figure that carries roller released state from the conveying roller after the left skew corrected.
As shown in Figure 5, lax in zone, the left side generation of cylinder paper R when intermediate roll paper R is crooked to the left on the way in the conveying by paper feed roller 11, on the contrary cylinder paper R is the state of anxiety in the zone, right side.
When under this state, cylinder paper R being sent into conveying roller 13 and carrying the roll gap part of roller 14, when axle drive shaft 19 rotates, produce that lax zone, left side conveying roller 13a rotates and conveying cylinder paper up to this lax being eliminated.Therefore this is because because cylinder paper R is not a strenuous status, even before lax being eliminated, there is the torque conveyance of sheets that load torque 41 also can be low.
On the other hand, in the part of the conveying roller 13b in right side zone because cylinder paper R is in tension, therefore with do not have when crooked equally, conveying roller 13b does not rotate.
Yet; The bending in zone, left side is eliminated along with the rotation that is accompanied by conveying roller 13a; Cylinder paper R moves to fixed position shown in dotted lines in Figure 5 (position that does not have askew) gradually, and conveying roller 13b receives the power from this cylinder paper R along the extroversion of axle drive shaft 19.Then, as shown in Figure 6 by this power conveying roller 13b along axle drive shaft 19 (right side among the figure) slip laterally.
Then, be corrected gradually along with crooked, the conveying roller 13a in left side zone becomes gradually and does not rotate, and when cylinder paper R gets back to the fixed position, becomes the state identical with Fig. 3, the revolution difference of conveying roller 13a, 13b disappear (becoming the state that does not rotate).Disappear revolution when consistent when detect such revolution difference by not shown revolution detecting sensor, can be considered skew corrected and accomplish.
Here, because the conveying roller 13b after the skew corrected is the state that slides to the right as shown in Figure 6, therefore need prevent because that the antagonistic force of compression spring 16b produces is crooked again.Therefore, through in figure, applying power downwards by not shown driver element and make and carry roller 14a, 14b to separate from conveying roller 13a, 13b as shown in Figure 7 after the skew corrected, thus liberation conveying roller 13b.Then, owing under this state, conveying roller 13b is not applied along the power of axle drive shaft 19 directions, therefore through the power that applies of compression spring 16b, conveying roller 13b returns the fixed position.
At this moment, also can link from conveying roller 13a, the last separating action of 13b, stop cylinder paper R is applied load torque 41 with making conveying roller 14a, 14b.By this way, can be prevented when the conveying rollers 14a, 14b in the roll paper R to be isolated in the conveying direction reverse pull swagger.
After this, make paper supply roller 12 and paper feed roller 11 butts, begin conveying again by paper feed roller 11.
Below, the skew corrected of cylinder paper R when the throughput direction right side is crooked specifically described with reference to Fig. 8 to Figure 10.Fig. 8 be expression cylinder principal direction right side askew with the cooresponding figure of Fig. 3, Fig. 9 be when being illustrated in right skew corrected the conveying roller sliding mode with the cooresponding figure of Fig. 4, Figure 10 is illustrated in to make the figure that carries roller released state from the conveying roller after the right skew corrected.
As shown in Figure 8, lax in zone, the right side generation of cylinder paper R when intermediate roll paper R is crooked to the right on the way in the conveying by paper feed roller 11, on the contrary cylinder paper R is the state of anxiety in the zone, left side.
When under this state, cylinder paper R being sent into conveying roller 13 and carrying the roll gap part of roller 14, when axle drive shaft 19 rotates, produce that lax zone, right side conveying roller 13b rotates and conveying cylinder paper up to this lax being eliminated.Therefore this is because because cylinder paper R is not a strenuous status, even before lax being eliminated, there is the torque conveyance of sheets that load torque 41 also can be low.
On the other hand, in the part of the conveying roller 13a in left side zone because cylinder paper R is in tension, therefore with do not have when crooked equally, conveying roller 13a does not rotate.
Yet the bending in zone, right side is eliminated along with the rotation that is accompanied by conveying roller 13b, and cylinder paper R moves to fixed position shown in dotted lines in Figure 8 gradually, and conveying roller 13a receives the power from this cylinder paper R along the extroversion of axle drive shaft 19.Then, as shown in Figure 9 by this power conveying roller 13a along axle drive shaft 19 (left side among the figure) slip laterally.
Then, be corrected gradually along with crooked, the conveying roller 13b in right side zone becomes gradually and does not rotate, and when cylinder paper R gets back to the fixed position, becomes the state identical with Fig. 3, the revolution difference of conveying roller 13a, 13b disappear (becoming the state that does not rotate).Disappear revolution when consistent when detect such revolution difference by not shown revolution detecting sensor, can be considered skew corrected and accomplish.
Here, because the conveying roller 13a after the skew corrected is the state that slides to the left as shown in Figure 9, therefore need prevent because that the antagonistic force of compression spring 16a produces is crooked again.Therefore, through in figure, applying power downwards by not shown driver element and make and carry roller 14a, 14b to separate from conveying roller 13a, 13b shown in figure 10 after the skew corrected, thus liberation conveying roller 13a.Then, owing under this state, conveying roller 13a is not applied along the power of axle drive shaft 19 directions, therefore through the power that applies of compression spring 16a, conveying roller 13a returns the fixed position.Basic thought is identical with the left crooked situation of using Fig. 5 to Fig. 7 explanation.
After this, make paper supply roller 12 and paper feed roller 11 butts, begin conveying again by paper feed roller 11.
Below, with reference to Figure 11 the relation of the revolution difference of the crooked amount of cylinder paper R and conveying roller 13a, 13b is specifically described.Figure 11 is the figure of the relation of this crooked amount of expression and revolution difference.
In Figure 11, the longitudinal axis is represented crooked amount (big more from 0 crooked amount far away more), and transverse axis is represented 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 big more revolution difference of crooked amount is big more, along with the crooked difference that the is corrected revolution gradually absolute value that disappears gradually is tending towards 0 gradually.
Therefore, when the revolution difference of conveying roller 13a and conveying roller 13b disappears or this absolute value reaches certain threshold value when following, can be considered does not have crookedly, and promptly skew corrected is accomplished.
Below, the processing when carrying out skew corrected specifically describes with reference to Figure 12.Figure 12 is the diagram of circuit of this processing of expression.
In imaging device shown in Figure 1 10, the processing shown in this diagram of circuit is to carry out through the program of the CPU execution needs of not shown control part.
The CPU of control part according to print order with cylinder paper R when imaging portion 20 carries out paper supply, the beginning Figure 12 diagram of circuit shown in processing.
At first, through paper feed roller 11 cylinder paper R is transported to the roll gap part of conveying roller 13 and conveying roller 14 and stops (S11).Afterwards, paper supply roller 12 is separated from paper feed roller 11, remove pressure (S12), and the axle drive shaft 19 of conveying roller 13a and conveying roller 13b is driven (S13) to throughput direction to cylinder paper R.
At this moment, when not producing when crooked, owing to do not have revolution difference between conveying roller 13a and the conveying roller 13b, so being judged to be of step S14 denys (NO) and enter step S15.On the other hand, crooked as producing when between conveying roller 13a and conveying roller 13b, having certain above revolution difference, carry out etc. pending up to crooked revisal end (S14 is for being (YES)).
Then, when crooked from initial do not produce or since the skew corrected of conveying roller 13a and conveying roller 13b when finishing, handle and enter S15 from step S14, make carry roller 14a, 14b from conveying roller 13a, 13b is last separates for the time being, face contact (S15) once again afterwards.Thus, can make conveying roller 13a, 13b return the fixed position through the elastic force of compression spring 16.
Afterwards, make the paper supply roller 12 that in step S12, separates again to paper feed roller 11 face contacts, begin the conveying (S16) of cylinder paper R again, the processing of skew corrected finishes.
According to the skew corrected mechanism in the imaging device 10 of above explanation, thereby owing to when skew corrected, need paper not collided Anywhere,, also can not can be carried out skew corrected by its special influence ground even if when therefore the top of form mistake is cut off sideling.
In addition, owing to be the structure that conveying roller 13 can slide on axle drive shaft 19 when skew corrected, therefore can when 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,, also can not cause generation because of conveying roller 13 and carry the lax or gauffer of the paper that the roll gap between the roller 14 causes even carry out the skew corrected of cylinder paper R with higher speed ground.
In addition, through compression spring 16 is set, thereby can be reset at the fixed position from carrying roller 14 to separate through after skew corrected, making the conveying roller 13 that has slided.Thus, can cause owing to the antagonistic force of compression spring 16 in crooked generation.
[variation]
Although above embodiment is illustrated, in the present invention, the concrete structure of each one or processed content are not limited to the structure or the processing of above-mentioned embodiment explanation.
For example, like Figure 13 and shown in Figure 14,, can replace compression spring 16 and extension spring 36 is arranged on the inboard of the conveying roller 13 on the axle drive shaft 19 as application of force unit.At this moment, when skew corrected, sliding laterally through conveying roller 13 makes extension spring 36 elongation, makes to carry roller 14 to separate the back to return the fixed position because extension spring 36 gets recuperability.
In addition, make conveying roller 13 return the fixed position and get the unit, can be not limited to spring and constitute by mechanical part arbitrarily.For example can consider; Can vacating slidably in the both sides of conveying roller 13, the space in zone also is provided with the screw actuator (solenoid) that fixedly installs respectively; When conveying roller 13 when stagger in the fixed position through adverse being made movable core outstanding, make it return the structure of fixed position thereby promote conveying roller 13.
In addition; Through being set to carry roller 14 and compression spring 16 also can on axle drive shaft 19, move adding outside the conveying roller 13 to make; And, cylinder paper R makes it can be used as one before carrying to move; The fixed position of conveying roller 13 can be adjusted, thereby but the paper that skew corrected mechanism correspondingly-sized is varied in size can be become.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 unit that compression spring 16 is fixed is set, so that in paper sheet delivery, the fixed position of conveying roller 13 can not moved.In addition, to carrying roller 14 also can be set to equally fix.
In addition, except that above the present invention not only can be constituted as imaging device, can also be constituted as the sheet convey apparatus of conveyance of sheets or to the crooked skew corrected equipment of proofreading and correct of paper.It can also be sheet material arbitrarily that crooked calibration object also can be not only paper.That certainly, rolls barrel-contoured or long size neither be necessary.
In addition, when the present invention was constituted as imaging device, the integral structure of equipment also was not limited to Fig. 1 and equipment shown in Figure 2, for example also applicable to the imaging device of electronic image recording mode.
Utilizability on the industry
As stated, 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 well the crooked of paper proofreaied and correct than higher speed and credible.
Therefore, the application of the invention, thus the credibility that sheet material is carried improves.
Claims (7)
1. a skew corrected equipment is characterized in that, comprising:
A pair of conveying roller is used for conveyance of sheets;
The load generating unit, to said paper to oppositely applying power with throughput direction by said conveying roller; And
The conveying roller driver element drives said conveying roller and said paper is applied than the little power of power by said load generating unit to said throughput direction, wherein,
Said each conveying roller is in the driving by said conveying roller driver element, along with moving of said paper can be slided along the axle of said conveying roller.
2. skew corrected equipment according to claim 1 is characterized in that, comprising:
Roller follower, corresponding each said conveying roller is with said conveying roller butt and driven rotation;
Separative element makes said roller follower separate from said conveying roller;
Application of force unit, to separately the predetermined fixed position application of force, the separation according to by the said roller follower of said separative element makes said conveying roller return said fixed position to each said conveying roller.
3. skew corrected equipment according to claim 2 is characterized in that,
Be provided with the revolution detecting unit, this revolution detecting unit is used to detect the revolution of each said conveying roller,
Have revolution difference as said conveying roller both sides and reach threshold value when following, control said separative element and make said roller follower separate units from the said conveying roller.
4. skew corrected equipment according to claim 2 is characterized in that the fixed position of at least one said conveying roller is for adjusting.
5. skew corrected equipment according to claim 3 is characterized in that the fixed position of at least one said conveying roller is for adjusting.
6. a sheet convey apparatus is characterized in that, has according to each described skew corrected equipment in the claim 1 to 5.
7. an imaging device is characterized in that, through sheet convey apparatus according to claim 6 paper is carried to imaging portion.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010280708A JP5625871B2 (en) | 2010-12-16 | 2010-12-16 | Skew correction device, paper transport device, and image forming device |
| JP2010-280708 | 2010-12-16 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102530622A true CN102530622A (en) | 2012-07-04 |
| CN102530622B CN102530622B (en) | 2014-07-30 |
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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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| JP6111615B2 (en) * | 2012-11-26 | 2017-04-12 | 株式会社リコー | Image forming apparatus |
| JP6211699B2 (en) | 2014-06-10 | 2017-10-11 | 日本プリンタエンジニアリング株式会社 | Printing device, paper feeding device, and paper feeding 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 |
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| JPH06206329A (en) * | 1993-01-12 | 1994-07-26 | Shinko Electric Co Ltd | Thermal color printer |
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| JPH07267434A (en) * | 1994-03-30 | 1995-10-17 | Ricoh Co Ltd | Sheet conveying device |
| JPH11310360A (en) * | 1998-04-27 | 1999-11-09 | Nec Shizuoka Ltd | Skew correcting mechanism |
| JP2003128297A (en) * | 2001-10-23 | 2003-05-08 | Fuji Xerox Co Ltd | Conveyance apparatus |
| CN101376467A (en) * | 2007-08-30 | 2009-03-04 | 株式会社东芝 | Paper carrying device and paper carrying method |
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|---|---|---|---|---|
| CN105164036A (en) * | 2013-04-09 | 2015-12-16 | 布鲁技术公司 | Device for separating at least two adjacent strands of material and system including such device |
| US10147559B2 (en) | 2013-04-09 | 2018-12-04 | Blue Solutions | Device for separating at least two adjacent strands of material and system including such a device |
| CN111890809A (en) * | 2020-08-13 | 2020-11-06 | 袁亦男 | Anti-blocking printer for triple-link paper printing |
| CN113771510A (en) * | 2021-08-26 | 2021-12-10 | 北京辰光融信技术有限公司 | Printing correction mechanism, printer and printing method |
| CN116119433A (en) * | 2022-11-18 | 2023-05-16 | 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 |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2012126537A (en) | 2012-07-05 |
| JP5625871B2 (en) | 2014-11-19 |
| CN102530622B (en) | 2014-07-30 |
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