CN101298303A - Paper processing apparatus, paper processing method and image forming apparatus - Google Patents
Paper processing apparatus, paper processing method and image forming apparatus Download PDFInfo
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- CN101298303A CN101298303A CNA2008101004536A CN200810100453A CN101298303A CN 101298303 A CN101298303 A CN 101298303A CN A2008101004536 A CNA2008101004536 A CN A2008101004536A CN 200810100453 A CN200810100453 A CN 200810100453A CN 101298303 A CN101298303 A CN 101298303A
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Abstract
The invention provides a paper treatment device, a paper treatment method and an image processing system. The paper treatment device includes a transportation electric motor that feeds a piece of paper along the feeding path, a deflexion detection device that detects the deflection of the paper that is being fed, a punch device that is arranged at the downstream of the deflexion detection device, a posture control device that can change the declination angle of the punch device and make skew rectification, a detection device that detects the front end and rear end of the paper that is fed to the punch device, and a control device that controls the transportation electromotor and the feeding speed of the paper. During the period from the detection on the front end of the paper to the detection on the rear end of the paper by the detection device, the feeding speed of the paper is reduced from a first speed to a second speed, the feeding of the paper is stopped when the rear end of the paper has been detected and the punching operation is made on the paper when the paper is stopped.
Description
Technical field
The present invention relates to carry out paper processing device and the paper object processing method that skew correction and perforation are handled from paper as the image forming part output of the MFP (Multi FunctionPeripherals, multi-function peripheral) of digit apparatus, duplicator, chopping machine etc.
Background technology
In the image processing system of MFP, duplicator, chopping machine etc., in order to bore a hole and to handle and post-processings such as bookbinding processings, be provided with after-treatment device (finisher, reorganizer) in row's paper portion adjacency of image forming device body to forming paper behind the image.
In this after-treatment device, the paper of discharging from image forming device body produces (to call deflection in the following text) with respect to throughput direction sometimes, the processing (perforation) if bore a hole under deflected condition then can cause punch position skew can produce inconvenience when filing (filing).Therefore, wish to come the basic enterprising eleven punch 11 that the deflection of paper is proofreaied and correct is handled in that the skew correction unit is set.
Japanese publication spy open put down in writing in the 2000-153953 communique can with punch unit along and the throughput direction of the paper direction of the reporting to the leadship after accomplishing a task paper processing device that move.In this example, put down in writing: with driling unit from reference position (HP) along and the throughput direction of the paper direction of reporting to the leadship after accomplishing a task move after perforation again, finish to bore a hole and driling unit is moved to position of readiness by the action that moves to reference position (HP) with it.
In addition, Japanese publication spy open put down in writing in the 2006-16129 communique have the roller that is used for skew correction to the paper processing device of punch unit.In this example, put down in writing following example: be provided with a plurality of ends detecting sensor in order when the roller by being used for skew correction is to conveyance of sheets, the side end of the paper that is transferred to be detected.
In addition, drive print media (sheet) driling unit of having put down in writing detecting unit in the flat 10-194557 communique Japanese publication spy with the side end that is used to detect the paper that is transferred.In this example, punch unit can be moved along the direction with the sheet transport direction quadrature, and determine the shift position of driling unit according to the testing result of detecting unit.
And, open the control setup of having put down in writing the electrical motor that is used for conveyance of sheets etc. in the 2005-31877 communique Japanese publication spy.In this example, have and move until first control system of the half-way that arrive target stop position with constant speed paper and make second control system paper moves to the stop position of target from half-way with low velocity till, divide two stage rotary driving motors.
Yet, require image processing system can carry out high speed processing in recent years, with its high speed, the delivery speed of paper also becomes at a high speed.Thus, the electrical motor that is used for conveyance of sheets also must with the conveying of paper fast control correspondingly.When paper is carried out post-processing, need to cooperate the skew correction of paper and the processing etc. of boring a hole, carry out operations such as constant speed drives, slows down or stops to carrying electrical motor.
In addition because the high speed of image processing system, make that the delivery speed of paper is accelerated after, the deceleration constant time lag of paper can take place, it is not more than needed perhaps to rotate to time of stopping from constant speed, is difficult to paper is stopped at the tram problem of the offset of perforation when perforation is handled.In addition, also there is the unfavorable condition that when deflection detects, produces the possibility increase that detects mistake.
Summary of the invention
The present invention in view of the above problems, the mistake that purpose is to provide the deflection of the paper that can reduce input to detect, and paper processing device, paper object processing method and the image processing system that can bore a hole in the tram.
According to an aspect of the present invention, provide paper processing device, it comprises: carry electrical motor, be used for carrying the paper that is formed with image along transport path; The deflection test section is used to detect the front end of the paper of carrying along transport path and the deflection of rear end; Perforated portion is configured in the downstream of deflection test section in the mode with the transport path quadrature of paper, and perforated portion is used for the paper that the is transferred processing of boring a hole; Ability of posture control portion according to changing the angle of deviation of perforated portion by the detected deflection of deflection test section, thereby carries out skew correction; First test section, detection is fed to the front end and the rear end of the paper of perforated portion; And control part, when control is carried electrical motor and the delivery speed of paper is controlled, conveying according to paper, the control skew correction reaches to be handled the perforation of paper, control part is controlled as follows: the front end that detects paper since first test section till detecting the rear end during, make paper be decelerated to second delivery speed from first delivery speed, after first test section detects the rear end of paper, stop the conveying of paper, and when stopping, paper is carried out perforation handle.
According to a further aspect in the invention, provide paper object processing method, it comprises: dispose orthogonally with the transport path of paper and be used for perforated portion that paper is bored a hole and handled; Use and carry electrical motor to carry the paper that is formed with image along transport path; In the upstream of perforated portion, detect the front end of the paper that is transferred and the deflection of rear end; According to changing the angle of deviation of perforated portion, thereby carry out skew correction by the detected deflection of deflection test section; Detect front end and the rear end that is transfused to the paper of perforated portion by first test section; Respond the testing result of first test section and to carrying electrical motor to control, the front end that detects paper since first test section till detecting the rear end during, paper is decelerated to second delivery speed from first delivery speed; After first test section detects the rear end of paper, stop the conveying of paper; And when paper stops, by perforated portion paper is carried out perforation and handle.
According to other aspects of the invention, provide image processing system, it comprises: image forming part comprises guidance panel and is used on paper forming the printing portion of image; Carry electrical motor, be used for carrying from the paper of image forming part output along transport path; The deflection test section is used to detect the front end of the paper of carrying along transport path and the deflection of rear end; Perforated portion is configured in the downstream of deflection test section in the mode with the transport path quadrature of paper, and perforated portion is used for the paper that the is transferred processing of boring a hole; First test section is used to detect the front end and the rear end that are transfused to the paper of perforated portion; Second test section is used to detect the end that is transfused to the Width of the paper of perforated portion; Travel mechanism moves perforated portion along the direction with the Width quadrature of the paper of carrying, so that perforated portion is consistent with the position of the Width of the paper of conveying, simultaneously, according to the angle of deviation that changes perforated portion by the detected deflection of deflection test section; And control part, when control is carried electrical motor and the delivery speed of paper is controlled, conveying according to paper, the control skew correction reaches to be handled the perforation of paper, control part is controlled as follows: the front end that detects paper since first test section till detecting the rear end during, make paper be decelerated to second delivery speed from first delivery speed, after first test section detects the rear end of paper, stop the conveying of paper, and when stopping, paper is carried out perforation handle.
Description of drawings
Fig. 1 is the constructional drawing that the unitary construction of image processing system that one embodiment of the present of invention are related to describes;
Fig. 2 is the birds-eye view that the structure of the paper processing device that one embodiment of the present of invention relate to is shown;
Fig. 3 is the birds-eye view that the travel mechanism of perforation (punch) portion in the paper processing device that one embodiment of the present of invention relate to is shown;
Fig. 4 is the birds-eye view that the rotating mechanism of the perforated portion in the paper processing device that one embodiment of the present of invention relate to is shown;
Fig. 5 is the block diagram that the control system of the paper processing device that one embodiment of the present of invention relate to is shown;
Fig. 6 A～Fig. 6 D is the birds-eye view that the fundamental operation of paper processing device that one embodiment of the present of invention are related to describes;
Fig. 7 is the diagram of circuit that the fundamental operation of paper processing device that one embodiment of the present of invention are related to describes;
Fig. 8 is the time diagram that the fundamental operation of paper processing device that one embodiment of the present of invention are related to describes;
Fig. 9 is the diagram of circuit that the control action of paper processing device that one embodiment of the present of invention are related to describes; And
Figure 10 is the time diagram that the control action of paper processing device that one embodiment of the present of invention are related to describes.
The specific embodiment
Run through in full, embodiment that illustrates and example should be considered to example, rather than to the restriction of apparatus and method of the present invention.
With reference to the accompanying drawings, one embodiment of the present of invention are elaborated.In addition, in each figure, same place has been marked identical symbol.
Fig. 1 is the constructional drawing that the image processing system that comprises the paper processing device that one embodiment of the present of invention relate to is shown.
In Fig. 1, the 10th, image processing system.Image processing system 10 comprises the body 11 of composing images formation portion and the paper processing device 20 that combines with body 11.
In addition, though in the following description, to be MFP (Multi-FunctionPeripherals, multi-function peripheral) with comprehensive machine as the situation of image processing system is that example describes, but is suitable for too for other image processing system such as chopping machine, duplicator.
Document board (not shown) is arranged at the top at the body 11 of image processing system 10, and switch is provided with auto document feeder (ADF) 12 freely on document board.And, be provided with guidance panel 13 on the top of body 11.The operating portion 14 that is made of various buttons and the display part 15 of touch panel formula are arranged on guidance panel 13.
In operating portion 14, possess for example ten key, reset key, stop key, initiating key etc.In addition, can be by display part 15 designated paper sizes, duplicating number, the processing etc. of boring a hole of touch panel formula.
Have scanner section 16 and printing portion 17 in the inside of body 11, and be provided with a plurality of boxes (cassette) 18 of the paper that is used to accommodate various sizes in the bottom of body 11.Scanner section 16 is used to read the original copy of carrying by ADF 12 or is positioned over original copy on the document board.
As the various modes of constituting of printing portion 17, be not limited to above-mentioned example.In addition, discharge side at the paper of body 11 and dispose paper processing device 20.Paper processing device 20 is commonly referred to as reorganizer (finisher), is called as reorganizer 20 in the following description.
The paper that is formed with image by body 11 (image forming part) is fed to reorganizer 20.20 pairs of paper that provide from body 11 of reorganizer carry out post-processing, and for example, perforation is handled, classification (sort) is handled, bookbinding is handled etc.
Have in the reorganizer shown in Fig. 1 20 paper is piled up the binder mechanism 21 of binding processing, the punch block mechanism 30 that reaches perforate on paper, the paper that is post-treated is discharged to discharge tray 27 or fixed tray 28.
Discharge tray 27 is portable, and it is used to receive be perforated handles or piled up by the paper that bookbinding is handled.In addition, binder mechanism 21 possesses the integrating apparatus that the paper broad ways of carrying is integrated, and can utilize this integrating apparatus paper is classified and to discharge.In addition, when not carrying out post-processing, will not carry out any processing and directly be expelled to discharge tray 27 or fixed tray 28 from the paper that body 11 is carried.
Binder mechanism 21 to reorganizer 20 carries out simple declaration below.The paper of supplying with via punch block mechanism 30 from body 11 receives by near the inlet roller the input port that is arranged at reorganizer 20 22.Downstream at inlet roller 22 is provided with paper feed roller 23, and the paper that receives by inlet roller 22 is loaded onto processing pallet 24 via paper feed roller 23.
Be loaded into the paper of handling pallet 24 and be directed to attachment means 25, thereby bind processing.In addition, also be provided with load-transfer device 26, it is used for and will handles or bind the paper sheet delivery of processing through classification to discharge tray 27.
The paper of carrying by load-transfer device 26 is discharged to discharge tray 27, and discharge tray 27 carries out lifting by drive division (not shown), and receives paper.
Also exist and paper is not bound processing, and it is expelled to the situation of discharge tray 27.In this case, paper is dropped to handle pallet 24 and discharge.In addition, also the paper that does not need post-processing can be expelled to fixed tray 28.Though, in diagram, omit for paper guide securement pallet 28 is provided with transport path.
Below punch block mechanism 30 is described.Punch block mechanism 30 is disposed between body 11 and the binder mechanism 21, and punch block mechanism 30 comprises punch unit 31 and disposal box (dust box) 32.
In punch unit 31, be provided with and be used for perforation blade (not shown) that paper is bored a hole and handled, when this perforation blade falls, on paper, open perforation.In addition, handle the chad that produces because of perforation and then fall into disposal box 32.
In addition, be provided with a plurality of rollers 33,34 that are used for conveyance of sheets until the path of the inlet roller 22 of binder mechanism 21 from body 11.The paper that is discharged from from body 11 is transported to punch block mechanism 30 and binder mechanism 21 via roller 33,34.
When the user operates guidance panel 13 and sets hole pattern, carry out based on the perforation of punch unit 31 and handle.
The formation of the punch block mechanism 30 of the paper processing device that one embodiment of the present of invention is related to below with reference to Fig. 2 is elaborated.In Fig. 2, punch block mechanism 30 has punch unit 31.In addition, omit in diagram for 32 of disposal boxes.Punch unit 31 has following function: in processing that paper S is bored a hole, the deflection (skew) of paper S is proofreaied and correct.
The structure of perforated portion 35 can move along the arrow A direction (laterally) with the throughput direction quadrature of paper S, and an end of perforated portion 35 (lower end of figure) constitutes and can be only rotates to arrow B direction (vertically) along the throughput direction of paper S within the limits prescribed.
In addition, amplification shows the travel mechanism that is used for along horizontal (arrow A direction) mobile perforated portion 35 in Fig. 3, amplifies to show in Fig. 4 to be used for longitudinally the mechanism that (arrow B direction) rotated perforated portion 35 and its posture is controlled.
As shown in Figure 3, Figure 4, on the axial both ends of perforated portion 35, be respectively arranged with protrusion tab 37,38, on protrusion tab 37,38, be formed with slotted hole 39,40 respectively.In addition, on a side of protrusion tab 37, be formed with tooth bar (rack) 41.In the slotted hole 39 of protrusion tab 37, embed the anchor shaft 42 that the base side that is set at reorganizer 20 is arranged.Therefore, perforated portion 35 can move along the arrow A direction in the length range of slotted hole 39 as guide piece (guide) with anchor shaft 42.
In addition, move along horizontal (A direction), be provided with the gear cluster 43 that meshes and rotate with tooth bar 41, and be provided with horizontal contraposition (resist) electrical motor 44 in order to make these gear cluster 43 rotations in order to make perforated portion 35.
And, on the position of distance protrusion tab 37 predetermined distances, dispose sensor 45.Sensor 45 is used to detect perforated portion 35 and moves and arrive reference position (home position) (following some places are referred to as HP) along the arrow A direction.Protrusion tab 37 is provided with the baffle plate (shutter) 46 that is formed extended at both sides along the direction of sensor 45, crosses sensor 45 by baffle plate 46, thereby can the reference position that perforated portion 35 moves until the A direction be detected.
On the other hand, on the protrusion tab 38 of perforated portion 35, be combined with fan-shaped cam (cam) 47 along the rotation of arrow B direction in order to make perforated portion 35.Cam 47 is that fulcrum rotates with the axle 48 of the base side that is arranged on reorganizer 20, has bar (lever) 49 on an end of cam, is formed with gear 50 on the other end.Bar 49 is provided with axle 51, in the slotted hole 40 of this 51 embedding protrusion tab 38.
In addition, for make perforated portion 35 longitudinally (B direction) rotate and be provided with gear cluster 52 with gear 50 engagements and rotation, and be provided with vertical contraposition electrical motor 53 in order to make these gear cluster 52 rotations.Because vertically the rotation of contraposition electrical motor 53 makes cam 47 rotations, and makes bar 49 rotate thus, perforated portion 35 with anchor shaft 42 be fulcrum longitudinally (B direction) rotate.
And, on the position of distance cam 47 predetermined distances, dispose sensor 54.This sensor 54 detects perforated portion 35 and rotates and turn to reference position along the arrow B direction.Direction at cam 47 upper edge sensors 54 has been formed extended at both sides baffle plate 55, crosses sensor 54 by baffle plate 55, detects thereby perforated portion 35 has been turned to reference position.
Like this, perforated portion 35 can move along horizontal (A direction) by the rotation of horizontal contraposition electrical motor 44, and can (B direction) rotation longitudinally by vertical contraposition electrical motor 53.The travel mechanism of above-mentioned laterally (A direction) and the rotating mechanism of vertical (B direction) constitute the movable agency of perforated portion 35.
In addition, the miles of relative movement of managing perforated portion 35 of the pulse count when driving horizontal contraposition electrical motor 44.Equally, rotation control, the angle of managing perforated portion 35 of the pulse count when driving vertical contraposition electrical motor 53.
In addition, the input size for the paper S of perforated portion 35 is provided with the sensor groups 56 of the lateral ends (horizontal end) that is used to detect paper S, is used for detecting the sensor 57 of end (front end and rear end) longitudinally but also be provided with when paper S is transferred.Sensor 57 constitutes first test section, and sensor groups 56 constitutes second test section.
On the other hand, in deflection test section 60, be provided with the sensor 61,62 that is used to detect deflection.This sensor 61,62 also can for example relatively dispose luminous element and photo detector, when paper S is transferred, by with paper S by between luminous element and the photo detector, thereby detect the deflection of paper.
That is, sensor 61 and 62 is configured in the upstream side of punch unit 30, and it is used to detect the leading section of paper S and the passing through of rearward end that transports.As shown in Figure 2, sensor 61 and sensor 62 are positioned at the inboard of the minimum width dimension of paper S, and both are only at a distance of the distance L 1 of regulation, with the direction of sheet transport direction quadrature on be set up in parallel.
Detection signal from sensor 61,62 is fed to control part described later.Be provided with time meter (time counter) in control part, when sensor 61,62 detected the passing through of leading section of paper S, time meter picked up counting respectively.For example, when paper S does not have deflection fully with respect to throughput direction,,, can generation time not poor so each time meter also begins counting simultaneously because sensor 61,62 detects the passing through of leading section of paper S simultaneously.
On the other hand, when deflection takes place and is transferred obliquely in paper S, because the first sensor 61 and second sensor 62 are to be fixed across the distance of stipulating, so for passing through of sensor 61,62 detected paper S, the meeting generation time is poor, can learn that thus deflection has taken place paper S.
S is inserted on the bias at paper, and for example sensor 61 detects paper S earlier, and sensor 62 detects under the situation of paper S then, can obtain skewed error distance (a) according to its detected time difference and delivery speed V.In addition, when being L1 with the distance setting between the first sensor 61 and second sensor 62, when angle excursion was made as (θ), following formula (1) was set up:
a＝L1·tanθ...(1)
When obtaining angle excursion θ according to this formula (1), can be only drive vertical contraposition electrical motor 53 by the pulse count of anglec of rotation θ only, make perforated portion 35 deflections, and carry out skew correction according to the deflection of paper.
In addition, as horizontal contraposition electrical motor 44 and vertical contraposition electrical motor 53, can be suitable for the stepper motor (steppingmotor) that to control rotation number by pulse count or frequency.In addition, conveying roller 34 is transferred electrical motor 59 a/s rotation numbers and drives, its paper S that will transport from upstream side (entrance side of punch unit 30) with delivery speed V downstream side (outlet side of punch unit 30) carry.
Below, with reference to Fig. 5 the control system that is used to drive punch unit 30 is described.Fig. 5 is the block diagram of the control system of expression punch unit 30.
In Fig. 5, the 70th, be used for the control part that control punch unit 30 is controlled, it comprises CPU (Central Processing Unit, central processing unit), RAM, ROM etc.On control part 70, be connected with the horizontal end detecting sensor 71 that comprises sensor groups 56, be used to detect sensor 57, the deflection detecting sensor 72 that comprises sensor 61,62 and the home sensor 45,54,73 of front end/rear end of paper S, be transfused to control part 70 from the testing result of each sensor.
In addition, on control part 70, also be connected with horizontal contraposition electrical motor 44, vertical contraposition electrical motor 53, perforation electrical motor 58 and paper sheet delivery electrical motor 59, the testing result of the above-mentioned various sensors of control part 70 responses is controlled the rotation of each electrical motor.
In addition, home sensor 45 is used for the reference position when making perforated portion 35 edges horizontal (A direction) mobile by horizontal contraposition electrical motor 44 is detected, and horizontal reference position is positioned at the central portion of the transport path of paper S.
In addition, home sensor 54 is used for the reference position when making perforated portion 35 (B direction) rotation longitudinally by vertical contraposition electrical motor 53 is detected.Reference position is the position of perforated portion 35 deflections longitudinally.
And the reference position when 73 pairs of home sensor make 36 liftings of perforation blade by perforation electrical motor 58 detects.The reference position of perforation blade 36 be after the blade 36 of boring a hole is extracted from paper S state, promptly from position that the paper of paper S leaves.
And, also be connected with the control part 80 that is used for control body (MFP) 11 on the control part 70.On this control part 80, be connected with the various piece of body 10, for example guidance panel 13, printing portion 17 and ADF 12 etc.
Below with reference to Fig. 6 A～6D, the fundamental operation of punch unit 31 of the present invention is described.
Fig. 6 A shows the initial condition of punch unit 31, that is, when receiving that from body 11 indication is handled in perforation, control part 70 drives vertical contraposition electrical motor 53, perforated portion 35 is rotated along the direction of the arrow B 1 of paper S throughput direction, and be configured to deflected condition.This state is reference position longitudinally.In addition, control part 70 drives horizontal contraposition electrical motor 44, and perforated portion 35 is moved along the direction with the arrow A 1 of the throughput direction quadrature of paper S, and is set at and keeps out of the way on (retreat) position.
Then, when paper S is transfused to, carry out the detection of deflection of the leading section of paper S by deflection test section 60.When detecting deflection by deflection test section 60, control part 70 drives vertical contraposition electrical motor 53, shown in Fig. 6 B, makes perforated portion 35 rotate deflection according to the deflection of the paper S of input to arrow B 2 directions.
Fine dotted line among Fig. 6 B is expressed as follows state: deflection takes place in paper S, and according to this deflection the posture of perforated portion 35 is controlled, so that it is in deflection.When deflection did not take place paper S, shown in solid line, the posture of perforated portion 35 was controlled in the angle with the throughput direction quadrature of paper S.The rotating mechanism of perforated portion 35 is owing to 70 controls of Be Controlled portion, so also be the ability of posture control portion of perforated portion 35.
Then, detect the front end of paper S, when detecting paper S and be transferred specified amount, drive horizontal contraposition electrical motor 44, perforated portion 35 is moved along the direction of arrow A 2 to transport path central authorities from retreating position by sensor 57.Move in the step at this, 56 pairs of horizontal ends along the paper S of paper S throughput direction of sensor groups detect.
When carrying out horizontal end when detecting, come any sensor in the specified sensor group 56 according to antiquarian by guidance panel 13 indications, detect by the sensor of this appointment.Sensor 561 outside for example using detects the horizontal end of A4 size.When antiquarian hour, use inboard sensor 564 to detect.When arriving horizontal end by any sensor in the sensor groups 56, laterally contraposition electrical motor 44 stops, and perforated portion 35 also stops to move.
Then, shown in Fig. 6 C, when paper S is further carried, will detect by the deflection of the rear end of 60 couples of paper S of deflection test section.At this moment,, then drive vertical contraposition electrical motor 53, so that only the angle excursion of perforated portion 35 is carried out trickle adjustment by error size if between the deflection of the deflection of front end and rear end error is arranged.At this moment,, then drive horizontal contraposition electrical motor 44, so that trickle adjustment is also carried out in the horizontal position of perforated portion 35 if the horizontal end of paper S has skew.
Then, shown in Fig. 6 D, after sensor 57 detects the rear end of paper S, with paper S from this position only the as prescribed amount flow to the assigned position of boring a hole and handling, the driving that stops to carry electrical motor 59 then.In this state, perforation electrical motor 58 is driven, and perforation blade 36 falls and paper S is bored a hole.
Consider that up to the time of perforation blade 36 driving of perforation electrical motor 58 also can begin driving than carrying electrical motor 59 to stop the more Zao moment with the paper butt.At this moment, also can begin to begin to drive perforation electrical motor 58 from the rear end that detects paper S by sensor 57 through behind the specified time.
When the perforation of perforation was finished dealing with, control part 70 drives once more carried electrical motor 59, and the sheet processed of will boring a hole is discharged.If follow-up paper exists, then repeat the processing of Fig. 6 A～Fig. 6 D, if follow-up paper does not exist, then each device is set in reference position (HP) and end process.
Fig. 7 is the diagram of circuit that above-mentioned action is described.
In Fig. 7, S0 is the beginning step that perforation is handled.In step S1, drive vertical contraposition electrical motor 53, rotate perforated portion 35 and be set on reference position longitudinally.In step S2, drive horizontal contraposition electrical motor 44, the direction of the arrow A 1 that perforated portion 35 edges and the throughput direction of paper S is orthogonal thereto moves, and is set on retreating position.
In step S3, the deflection of the leading section of the paper S by 60 pairs of inputs of deflection test section detects.When detecting deflection by deflection test section 60, in step S4, drive vertical contraposition electrical motor 53, make perforated portion 35 rotate deflection according to the deflection of the paper S that is transfused to.
Then, when detecting the front end of paper S, drive horizontal contraposition electrical motor 44 by sensor 57, make perforated portion 35 from retreating position to the transport path central mobile.In step S5, the horizontal end by 56 couples of paper S of sensor groups detects.When detecting horizontal end, laterally contraposition electrical motor 44 stops, and perforated portion 35 also stops to move.Then, when paper S was further carried, in step S6, the deflection of the rear end by 60 couples of paper S of deflection test section detected.
Among the step S71 in step S7, whether exist error to judge to the deflection of front end and the deflection of rear end, if there is error, then in step S72, drive vertical contraposition electrical motor 53, the measure of skewness of perforated portion 35 is carried out trickle adjustment by error size.At this moment,, then drive horizontal contraposition electrical motor 44, so that perforated portion 35 laterally also carried out trickle adjustment if the horizontal end of paper S is offset.
Then, after skew correction, paper S only is transferred predetermined distance to the assigned position of boring a hole and handling, and stops carrying the driving of electrical motor 59.In step S8, drive perforation electrical motor 58, perforation blade 36 is fallen and paper S is bored a hole.When the perforation processing of perforation finishes, drive once more and carry electrical motor 59, the sheet processed of will boring a hole is discharged.In step S9, if follow-up paper exists, then repeat processing from step S1 to step S8, if follow-up paper does not exist, then each device is set in reference position (HP), in step S10, finish punching and handle.
Fig. 8 is the time diagram that the action based on the diagram of circuit of Fig. 7 is described.Figure 8 illustrates conveying electrical motor 59, be used for sensor 61,62, front end/rear end detecting sensor 57, the vertically action timing (timing) of contraposition electrical motor 53, horizontal contraposition electrical motor 44 and perforation electrical motor 58 that deflection detects.
In addition, S1～S8 shown in Figure 8 is corresponding with the step S1～S8 in the diagram of circuit of Fig. 7, and carries out various detections and processing according to the order from S1 to S8.
In addition, as can be known from Fig. 8: carry electrical motor 59 with the rear end that detects paper S by sensor 57 as triggering (trigger), slowing down, stop the rotation then through the moment of specified time (t1).Then, when carrying electrical motor 59 to stop, perforation electrical motor 58 is driven and carries out perforation and handles.Therefore, by correctly setting the punch position that this time t1 determines paper S.For example when using stepper motor when carrying electrical motor 59, by setting pulse count, thus can be with the rotation number of the conveying electrical motor 59 in time t1, be that the fed distance of paper S remains necessarily, and can set punch position.
But, in the punch unit 31 that carries out above-mentioned fundamental operation, also exist further should following improvement leeway.
That is,, when the delivery speed of paper S also becomes high speed, need make and carry also high speed revolution of electrical motor 59 along with the high speed of image processing system 10.On the other hand, when conveying electrical motor 59 is stopped, rotative speed is slowed down earlier afterwards stop.
In the example of Fig. 8, after detecting the rear end of paper S, reduce speed now and stop then in the moment through certain hour (t1) by sensor 57.Therefore, when carrying electrical motor 59 high speed revolutions,, then can cause causing braking failure and paper S transfinite (overrun) if the time that begins till stopping to carry electrical motor 59 from the rear end that detects paper S is short.Therefore, the stop position that causes paper S to surpass regulation just stops, and causes the punch position skew.
In addition, if the time (t1) that will begin from the rear end of detecting paper S till stopping to carry electrical motor 59 increase, even then under the situation of carrying electrical motor 59 high speed revolutions, it is stopped in correct position.And, in this case, because sensor 57 that the rear end of paper need be detected and the distance expansion between the perforated portion 35, so cause the maximization of device.
On the other hand, also can consider following method: in the moment that begins from the front end that detects paper S through specified time, the deceleration that begins to carry electrical motor 59 stops then.But in this case, because when the rear end deflection to paper S detects, implement speed-down action, so cause the deflection of rear end to detect and to carry out.Promptly because the deflection detection is according to the detection time to sensor 61 and sensor 62, delivery speed poor and paper S was calculated, so if speed not necessarily, then can't correct calculation go out deflection.
So, in punch block mechanism 30 of the present invention, driving carrying electrical motor 59 by the control shown in the diagram of circuit of Fig. 9, this is a feature of the present invention.
In Fig. 9, step S10 is the step of carrying the driving of electrical motor 59 to begin, step S11 represent to carry electrical motor 59 with paper S from the discharge velocity of body 11, the i.e. state that drives of first speed.Punch block mechanism 30 receives the paper S that discharges from body 11, paper S be transferred with constant speed during, the detection of in step S12, carrying out the front end deflection by deflection test section 60.
Then, when sensor 57 detects the front end of paper S in step S13, move to step S14.In step S14, begin till the pulse count of counting regulation from moment of front-end detection, pulsed drive is carried electrical motor 59, and it is rotated with identical speed.Be defined in the pulse count of counting among the step S14 according to the antiquarian of being carried, the pulse count that is set at the long more then regulation of antiquarian is many more.
When in step S14, counting the pulse count of regulation, in step S15, carry electrical motor 59 to be decelerated to than the first slow-footed second speed.Before will arriving deflection test section 60 in the rear end of paper S, the deceleration of second speed finishes.Paper S be transferred with second speed during, in step S16, carry out detection to the rear end deflection of paper S.
Then, in step S17, when detecting the rear end of paper S, in step S18, carry the deceleration of the subordinate phase of electrical motor 59, and paper S is stopped at assigned position by sensor 57.
And, when carrying electrical motor 59 to stop, in step S19, drive perforation electrical motor 58, by 35 couples of paper S of perforated portion processing of boring a hole, the eleven punch 11 of going forward side by side.When the perforation processing of perforation finishes, carry electrical motor 59 once more with the rotation of first speed, paper S is discharged.In step S20, if follow-up paper exists, then repeat processing from step S11 to step S19, if follow-up paper does not exist, then in step S21, finish transport process to paper.
In this case, because the delivery speed of the paper S when the front end deflection detects is first speed, the delivery speed of the paper S when the rear end deflection detects is a second speed, so in control part 70, on the basis of the difference of considering delivery speed, carry out the detection of deflection.
Figure 10 is the time diagram that the action based on the diagram of circuit of Fig. 9 is described.Figure 10 illustrates the sensor 61,62 of carrying electrical motor 59, being used for the deflection detection, sensor 57, the vertically action timing of contraposition electrical motor 53, horizontal contraposition electrical motor 44 and perforation electrical motor 58 that front end/rear end is detected.
In addition, the S11～S19 among Figure 10 is corresponding with the step S11～S19 of the diagram of circuit of Fig. 9, carries out various detections and processing according to the order from S11 to S19.
As can be seen from Figure 10, control part 70 carries out following control: the front end that detects paper from sensor 57 begin till detecting the rear end during, paper is carried in the mode that is decelerated to second speed from first speed, after sensor 57 detects the rear end of paper S, stop the conveying of paper, handle thereby when paper stops, carrying out perforation.
In addition, during carrying that electrical motor 59 carries paper S with first speed, carry out the detection of front end deflection by sensor 61,62.In addition, carrying electrical motor 59 is triggering with the front end that is detected paper S by sensor 57, reduces speed now in the moment (after the time t2 process) that the pulse count of stipulating is counted, and is decelerated to second speed.
The timing setting that the delivery speed of paper S is decelerated to second speed from first speed detect at sensor 57 paper the rear end the moment near (forward slightly), by prolong with first speed carry during and shorten with second speed carry during, thereby improve the single-piece processing speed.
During with this second speed conveyance of sheets S, carry out the detection of the deflection of rear end by sensor 61,62, then, carry electrical motor 59 to stop the rotation.In addition, when carrying electrical motor 59 to stop, perforation electrical motor 58 is driven the eleven punch 11 of going forward side by side and handles.
Therefore, because the detection of deflection is to carry out when carrying the rotation of electrical motor 59 constant speed, so can correctly detect deflection.
In addition, stopping action owing to carry electrical motor 59 to be decelerated to earlier and enter after the second speed, thus when stopping, can effectively braking fully, and paper S is stopped on the correct punch position.Thus, can avoid the skew of the position of the perforation that produces by perforated portion 35.
In addition, because the distance expansion between the sensor 57 that does not also need to detect front end/rear end and the perforated portion 35, so miniaturization that can implement device.In addition, because carry electrical motor 59 substantially with the first speed high speed revolution, so can fully tackle the high speed of image processing system 10.
As mentioned above,, can paper be stopped on the tram deflection detection etc. not being exerted an influence and not needing to make under the condition that device maximizes according to embodiments of the invention, and the processing of can correctly boring a hole.
In addition, though what describe in the above description is the example that punch block mechanism 30 and body 11 are constituted respectively, also punch block mechanism 30 can be formed in the body 11.In addition, be that example is illustrated though bore a hole from the paper of body 11 outputs with 30 pairs of punch block mechanisms, also can utilize inset inserting machine (inserter) that paper is delivered to punch block mechanism 30 successively and the paper that transports from inset inserting machine is bored a hole.
In addition, in the scope that does not break away from protection domain of the present invention, various distortion can also be arranged.
Though the present invention has illustrated and has described exemplary specific embodiment,, for those of ordinary skills, under the situation that does not deviate from spirit of the present invention, obviously can carry out various variations, improvement or modification to the illustrated the present invention of this paper.Therefore all these variations, improvement or modification all should be regarded as within the scope of the invention.
Claims (17)
1. a paper processing device is characterized in that, comprising:
Carry electrical motor, be used for carrying the paper that is formed with image along transport path;
The deflection test section is used to detect the front end of the paper of carrying along described transport path and the deflection of rear end;
Perforated portion is configured in the downstream of described deflection test section in the mode with the transport path quadrature of described paper, and described perforated portion is used for the paper that the is transferred processing of boring a hole;
Ability of posture control portion according to changing the angle of deviation of described perforated portion by the detected described deflection of described deflection test section, thereby carries out skew correction;
First test section, detection is fed to the front end and the rear end of the described paper of described perforated portion; And
Control part at the described conveying electrical motor of control and when the delivery speed of described paper controlled, according to the conveying of described paper, is controlled described skew correction and the perforation of described paper is handled,
Described control part is controlled as follows: the front end that detects described paper from described first test section begin till detecting the rear end during, make described paper be decelerated to second delivery speed from first delivery speed, after described first test section detects the rear end of described paper, stop the conveying of described paper, and when described stopping, described paper is carried out perforation handle.
2. paper processing device according to claim 1 is characterized in that,
Described control part is controlled described deflection test section, make described deflection test section when described paper is carried with described first delivery speed, detect the deflection of the front end of described paper, when described paper is transferred with described second delivery speed, detect the deflection of the rear end of described paper.
3. paper processing device according to claim 1 is characterized in that,
Described control part changes the delivery speed that makes described paper is decelerated to described second delivery speed from described first delivery speed timing according to the size of the paper of described conveying.
4. paper processing device according to claim 3 is characterized in that,
The timing setting that described control part will make the delivery speed of described paper be decelerated to described second delivery speed from described first delivery speed detects at described first test section near rear end timer-operated of described paper.
5. paper processing device according to claim 3 is characterized in that,
The stepper motor that uses pulsed drive is as described conveying electrical motor, described control part according to the pulse count of setting respectively with respect to the size of described paper manage the front end that detects described paper from described first test section begin till the delivery speed of stating paper is decelerated to described second delivery speed during.
6. paper processing device according to claim 1 is characterized in that,
Described first test section constitutes the sensor that comprises the central portion that is configured in the described paper transportation path between described perforated portion and the described deflection test section.
7. paper processing device according to claim 1 is characterized in that,
Described paper processing device also comprises: second test section is used to detect the end of the Width of the paper that is fed to described perforated portion; And travel mechanism, according to the testing result of described second test section, move described perforated portion along direction, so that described perforated portion is consistent with the position of the Width of the described paper of conveying with the Width quadrature of the described paper of carrying.
8. a paper object processing method is characterized in that, comprising:
Dispose orthogonally with the transport path of paper and to be used for perforated portion that described paper is bored a hole and handled;
Use and carry electrical motor to carry the paper that is formed with image along described transport path;
In the upstream of described perforated portion, detect the front end of the described paper that is transferred and the deflection of rear end;
According to changing the angle of deviation of described perforated portion, thereby carry out skew correction by the detected described deflection of described deflection test section;
Detect front end and the rear end that is transfused to the described paper of described perforated portion by first test section;
Respond the testing result of described first test section and described conveying electrical motor is controlled, the front end that detects described paper from described first test section begin till detecting the rear end during, described paper is decelerated to second delivery speed from first delivery speed;
After described first test section detects the rear end of described paper, stop the conveying of described paper; And
When described paper stops, by described perforated portion described paper is carried out perforation and handle.
9. paper object processing method according to claim 8 is characterized in that,
Detect for described deflection, when described paper is transferred with described first delivery speed, detect the deflection of the front end of described paper, when described paper is transferred with described second delivery speed, detect the deflection of the rear end of described paper.
10. paper object processing method according to claim 8 is characterized in that,
Size according to the described paper that is transferred changes the timing that the delivery speed of described paper is decelerated to described second delivery speed from described first delivery speed.
11. paper object processing method according to claim 10 is characterized in that,
The delivery speed that makes described paper is decelerated to described second delivery speed from described first delivery speed timing setting detects at described first test section near rear end timer-operated of described paper.
12. paper object processing method according to claim 10 is characterized in that,
The stepper motor that uses pulsed drive is as described conveying electrical motor, according to the pulse count of setting respectively with respect to the size of described paper manage the front end that detects described paper from described first test section begin till the delivery speed of described paper is decelerated to described second delivery speed during.
13. paper object processing method according to claim 8 is characterized in that,
Also detect the end of the Width of the paper that is fed to described perforated portion by second test section,
According to the testing result of described second test section, move described perforated portion along direction, so that described perforated portion is consistent with the position of the Width of the described paper of conveying with the Width quadrature of the described paper of carrying.
14. an image processing system is characterized in that, comprising:
Image forming part comprises guidance panel and is used on paper forming the printing portion of image;
Carry electrical motor, be used for carrying from the paper of described image forming part output along transport path;
The deflection test section is used to detect the front end of the paper of carrying along described transport path and the deflection of rear end;
Perforated portion is configured in the downstream of described deflection test section in the mode with the transport path quadrature of described paper, and described perforated portion is used for the paper that the is transferred processing of boring a hole;
First test section is used to detect the front end and the rear end that are transfused to the described paper of described perforated portion;
Second test section is used to detect the end that is transfused to the Width of the described paper of described perforated portion;
Travel mechanism, move described perforated portion along direction with the Width quadrature of the described paper of carrying, so that described perforated portion is consistent with the position of the Width of the described paper of conveying, simultaneously, according to the angle of deviation that changes described perforated portion by the detected deflection of described deflection test section; And
Control part at the described conveying electrical motor of control and when the delivery speed of described paper controlled, according to the conveying of described paper, is controlled described skew correction and the perforation of described paper is handled,
Described control part is controlled as follows: the front end that detects described paper from described first test section begin till detecting the rear end during, make described paper be decelerated to second delivery speed from first delivery speed, after described first test section detects the rear end of described paper, stop the conveying of described paper, and when described stopping, described paper is carried out perforation handle.
15. image processing system according to claim 14 is characterized in that,
Described control part is controlled described deflection test section, when described paper is transferred with described first delivery speed, detect the deflection of the front end of described paper, when described paper is transferred with described second delivery speed, detect the deflection of the rear end of described paper.
16. image processing system according to claim 14 is characterized in that,
Described control part changes the timing that the delivery speed of described paper is decelerated to described second delivery speed from described first delivery speed according to the antiquarian by described guidance panel appointment.
17. image processing system according to claim 14 is characterized in that,
The stepper motor that uses pulsed drive is as described conveying electrical motor,
Described control part according to the pulse count of setting respectively with respect to the size of described paper manage the front end that detects described paper from described first test section begin till the delivery speed of described paper is decelerated to described second delivery speed during.
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| CN2008101004536A CN101298303B (en) | 2008-06-11 | 2008-06-11 | Paper processing apparatus, paper processing method and image forming apparatus |
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| CN2008101004536A CN101298303B (en) | 2008-06-11 | 2008-06-11 | Paper processing apparatus, paper processing method and image forming apparatus |
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