CN100535743C - Image forming device - Google Patents

Image forming device Download PDF

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Publication number
CN100535743C
CN100535743C CNB2006101380323A CN200610138032A CN100535743C CN 100535743 C CN100535743 C CN 100535743C CN B2006101380323 A CNB2006101380323 A CN B2006101380323A CN 200610138032 A CN200610138032 A CN 200610138032A CN 100535743 C CN100535743 C CN 100535743C
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China
Prior art keywords
image forming
forming medium
photographic paper
imaging
imaging portion
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Expired - Fee Related
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CNB2006101380323A
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Chinese (zh)
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CN1967376A (en
Inventor
山本雅弘
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Noritsu Koki Co Ltd
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Noritsu Koki Co Ltd
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Publication of CN1967376A publication Critical patent/CN1967376A/en
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Abstract

A transportation unit 6 of the upstream side of the transportation part 17 is provided for feeding photographic paper P in level direction from an upper position in the perpendicular direction of the transportation part 1. The photographic paper P looses downward to form a ring-loop part Pa between the transportation part 1 and an exposure device 7. A ring-loop accommodation space W used for receiving said ring-loop part Pa is formed below the upstream side of the transportation part 17. When the photographic paper P is not cut off by a photographic paper cutting tool 5 and an image forms on the emulsion surface of the photographic paper P in a connecting state of the transportation part 1 and an exposure device 7, the photographic paper looses downward to form a ring-loop part between the transportation part and an exposure device. Since the imaging medium forms a ring-loop part between the transportation part 1 and an exposure device 7, when the imaging medium is cut off by an incision device, the charge change which generates from the stop of the supply of imaging medium or the incision or imaging medium is not transferred to the imaging medium in the imaging part in the process of imaging even when the imaging medium supply is stopped from the supply part. Therefore, an image with high quality is capable of being obtained. Furthermore, the distance between the supply part and the image forming part is capable of being reduced because of the formation of a ring-loop part.

Description

Image processing system
Technical field
The present invention relates to image processing system, Yi Bian particularly carry image forming medium, Yi Bian on the imaging surface of image forming medium, form the image processing system of image.
Background technology
Utilize laser the printing paper of being made by photosensitive material (for example, image forming medium such as printing paper) to be carried out the device of image exposure about being used for the image processing system of processing etc., in No. 3597342 communique of Jap.P., disclosing.This device reads and is formed at the frame image information on the egative film that develops or is stored in view data on the various mediums, and carries out the exposure mutually of washing of image on the emulsion side (imaging surface) of printing paper according to these view data.This device comprises supply department, is used to supply printing paper (be typically provided with the paper magazine filling department, be filled with the container (paper magazine) that holds printing paper in this paper magazine filling department); The upstream side delivery section is used to carry the printing paper from supply department's supply; Imaging portion forms image on the emulsion side of the printing paper that is transported by the upstream side delivery section; The downstream delivery section is arranged on the downstream of this imaging portion, and carries the printing paper by the output of imaging portion.Be provided with supply unit or the laser cell of carrying printing paper with certain speed in the imaging portion, be provided with the LASER Light Source that the spy opens the emission laser of being put down in writing among the flat 5-134199 in the laser cell, and the emulsion side of printing paper carried out the required polygon mirror of laser scanning along the Width of printing paper.And the emulsion side to the printing paper carried by conveying mechanism carries out laser scanning along the direction (Width of printing paper) vertical with throughput direction, and latent image is formed on the emulsion side.Formed the printing paper of this latent image, be sent to development treatment portion and carry out development treatment.Through these operations, on the emulsion side of printing paper, form photograph image etc. and want the image that obtains.
Yet,, just must when utilizing laser to form image, carry printing paper accurately for the high resolution image that obtains from aforesaid image processing system to be speckless.For this reason, in imaging portion, be necessary to prevent from load variations is delivered to the imaging moiety (exposed portion) of printing paper.Especially when between supply department and upstream side delivery section, being provided with length in accordance with regulations and cutting off the cutter sweep of printing paper, will change to the imaging moiety transfer charge if operate this cutter sweep, thereby bring harmful effect to image quality.Therefore, in patent documentation 1, proposed a kind of scheme,, utilized the transport path setting of printing paper not make load variations be delivered to the required buffer portion of printing paper imaging moiety promptly in the upstream side or the downstream of image space.
But if take to utilize the transport path of printing paper that the method for buffer portion is set, the long more then transport path of length of then handling printing paper also becomes long more, consequently, is difficult to the miniaturization of implement device and reduces cost.
Summary of the invention
The objective of the invention is to, a kind of image processing system is provided, can obtain high resolution image in the implement device miniaturization.
For achieving the above object, in the present invention, the conveying mechanism of upstream side delivery section is arranged to, when the position along continuous straight runs is carried on the upper side from the vertical direction of supply department with image forming medium, make image forming medium lax loop portions that forms between supply department and imaging portion downwards, and, be provided with the loop portions spatial accommodation of the image forming medium that is used to hold the formation loop portions that has been relaxed state at the downside of upstream side delivery section.
The 1st kind of image processing system that the present invention proposes comprises supply department, upstream side delivery section, imaging portion, downstream delivery section and control part.Supply department is used to supply image forming medium.The upstream side delivery section comprises from the vertical direction of supply department first conveying mechanism carried of the image forming medium along continuous straight runs supplied of position on the upper side.Imaging portion, on one side along continuous straight runs carry the image forming medium that transports from first conveying mechanism, on the imaging surface of image forming medium, form image on one side.The downstream delivery section is arranged on the side, downstream of imaging portion and vertically extension, and carries the image forming medium that transports from imaging portion.Also have, between supply department and upstream side delivery section, be provided with the shearing device that length is in accordance with regulations cut off described image forming medium.And, thereby, the imaging medium is not under the state that is connected when being cut off between supply department and imaging portion in cut-out portion, when imaging portion forms image to the imaging surface of image forming medium, by control part control upstream side delivery section so that image forming medium lax downwards upstream side loop portions that forms between supply department and imaging portion.At the downside of upstream side delivery section, be provided with the loop portions spatial accommodation that is used to hold loop portions.
According to above-mentioned formation, because image forming medium forms loop portions between supply department and imaging portion, when therefore cutting off image forming medium by cutter sweep, even stop, the load variations that produces because of stop supplies image forming medium or cutting image forming medium can not being delivered on imaging portion carries out image forming medium in the imaging process from supply department supply image forming medium yet.So can access images with high image quality.And, owing to form loop portions, therefore can shorten the distance between supply department and the imaging portion.Add because the downstream delivery section is extended to vertical direction, can shorten the distance between supply department and the imaging portion, therefore can shorten device length in the horizontal direction.And, since the conveying mechanism of upstream side delivery section the vertical direction of described supply department on the upper side the position along continuous straight runs carry image forming medium, therefore the corresponding space, bottom of existence and supply department below the upstream side delivery section easily forms the loop portions spatial accommodation in this space content.Simultaneously, if the lower end position of downstream delivery section is arranged to identical substantially, can realize the miniaturization of installing on the vertical direction with the lower end position of supply department or loop portions spatial accommodation.Therefore, can in the implement device miniaturization, obtain high resolution image.
The 2nd kind of image processing system that the present invention proposes, supply department comprises a plurality of filling departments, filling accommodates the container that is rolled into columnar image forming medium in this filling department.And this image processing system is arranged to, and from any one container that is loaded in described a plurality of filling departments, optionally supplies image forming medium.In supply department, a plurality of filling departments are configured in vertical direction side by side.
According to above-mentioned formation, the multiple image forming medium of different in width can be installed in device in advance, therefore saved the time of each replacing image forming medium, improved work efficiency.On the other hand, can the phase strain big corresponding to the volume of the quantity supply department of filling department, but because a plurality of filling departments dispose side by side in vertical direction, and height of devices can uprise, but the length on the horizontal direction can be not elongated.In case the height of supply department uprises, the space of loop portions spatial accommodation is increased, can prevent from really to change to the imaging moiety transfer charge of image forming medium.Simultaneously, if it is also elongated in vertical direction with supply department corresponding downstream delivery section, then in the delivery section of downstream, also be formed for preventing the buffering that the imaging moiety transfer charge to image forming medium changes easily, particularly highly beneficial when adopting the 6th kind of invention structure described below.
The 3rd kind of image processing system that the present invention proposes is that in the device, imaging portion comprises supply unit, light source cell and guide path unit in the 1st kind or the 2nd.Supply unit, the image forming medium of carrying first conveying mechanism by described upstream side delivery section to transport with certain speed.Light source cell, light source is contained in its inside, is used to be transmitted on the imaging surface of described image forming medium form the required light of image, and the light that is penetrated from described light source to outside outgoing from the light exit wound of bullet.The guide path unit is on the imaging surface of guiding the image forming medium of being carried by described supply unit from the emitted light of the described smooth exit wound of bullet of described light source cell into.And, on the light source cell position adjacent, be provided with the cooling end of the described light source cell of cooling.
The light source of light source cell can become pyrotoxin, and temperature can rise in the light source cell for this reason.Particularly, if the width dimensions of image forming medium big (for example, about 600mm), then the photoscanning time on the imaging surface of image forming medium becomes quite long, the heating of the light source fierceness more that can become.Therefore can bring harmful effect to the characteristic of light source,, then can produce moding because of temperature variation particularly for the semiconductor laser that is usually used in LASER Light Source.But among the present invention,, therefore can suppress the rising of light source cell internal temperature, keep good light source characteristic, thereby can guarantee to form on the imaging surface images with high image quality owing on the light source cell position adjacent, be provided with the cooling end of cooling light source cell.On the other hand, the space of cooling end also becomes problem, still, particularly as the height of the 2nd kind of described supply department of invention when uprising, also can be provided with and the space of the equal size of downside at the upside of upstream side delivery section.According to this formation, do not need to improve again height of devices, light source cell and cooling end can be set at the upside of upstream side delivery section.
The 4th kind of image processing system that the present invention proposes, the light source cell of imaging portion is arranged on the upside of upstream side delivery section, and cooling end is arranged between described light source cell and the described upstream side delivery section.
According to above-mentioned formation, can between light source cell and upstream side delivery section, cooling end be set, can be when cooling off light source cell effectively, the height of restraining device as much as possible.
The 5th kind of image processing system that the present invention proposes, downstream delivery section comprise winding mechanism and extract conveying mechanism.Winding mechanism is used for the leading section of the image forming medium that clamping sends from imaging portion and reels.Extract conveying mechanism and be used for rear end with image forming medium, extract image forming medium and conveying after reeling by winding mechanism from winding mechanism for ahead.
Constitute according to this, form the image forming medium behind the image in case after reeling by winding mechanism, just with the rear end for being drawn out of from winding mechanism ahead, be sent to next handling parts such as development treatment portion by conveying mechanism.Also temporarily hold the image forming medium that forms image owing to reel, different with the operation that directly is sent to next handling part, can suppress to change to the imaging moiety transfer charge of image forming medium.That is to say, if length by the image forming medium after the cutter sweep cut-out, longer than the delivered length between imaging portion and next handling part, when then image forming medium being formed image, the front end of image forming medium can enter next handling part, therefore, the processing in this next handling part and imaging moiety that the vibrations that produce or load variations can pass to image forming medium.But the phenomenon that described vibrations or load variations are delivered to the imaging moiety of image forming medium then can not take place in temporary transient coiling and hold image forming medium as the present invention.Therefore, do not need to be provided with the big space or the long transport path of buffering usefulness, and then can dwindle the space of downstream delivery section in the downstream of imaging portion.
The 6th kind of image processing system that the present invention proposes, the downstream delivery section also comprises, the coiling travel mechanism that described winding mechanism is moved between first height and position and second height and position, first height and position height that is image forming medium in described imaging portion wherein, second height and position is positioned at the downside of first height and position and away from the position of image forming medium, after described winding mechanism began to reel image forming medium, described coiling travel mechanism moved to second height and position with described winding mechanism from first height and position.
According to this formation, by winding mechanism being moved to second height and position from first height and position by coiling travel mechanism, it is lax that the part of image forming medium between winding mechanism and imaging portion produced, thereby can prevent the imaging moiety that the vibrations that produce because of winding work or load variations are delivered to image forming medium.
The 7th kind of image processing system that the present invention proposes comprises supply department, imaging portion, cutter sweep and loop portions.Supply department is used to supply image forming medium.Imaging portion forms image at the imaging surface of the image forming medium that transports from supply department.Cutter sweep is arranged between supply department and the imaging portion, and length is cut off image forming medium in accordance with regulations.Loop portions,, the imaging medium is not under the state that is connected when thereby being cut off between supply department and the imaging portion in cut-out portion, when imaging portion formed image to the imaging surface of image forming medium, image forming medium formed slack downwards between cutter sweep and imaging portion.
According to this formation, even stop supply image forming medium from supply department, also can absorb the load variations that produces because of this stop supplies image forming medium, in imaging portion, can prevent to be delivered to the imaging moiety of image forming medium because of the load variations that the stop supplies image forming medium produces in loop portions.Simultaneously, can prevent similarly that also reason from cutting off the imaging moiety that load variations that image forming medium self produced passes to image forming medium.Consequently, can prevent to produce exposure shade etc., thereby obtain high resolution image.
The 8th kind of image processing system that the present invention proposes comprises supply department, second conveying mechanism, the 3rd conveying mechanism, imaging portion and cutter sweep.Supply department holds being wound into strip image forming medium cylindraceous.Second conveying mechanism extracts image forming medium from supply department, and past downstream side is to conveying.The 3rd conveying mechanism, the image forming medium that acceptance transports from second conveying mechanism, and toward the prescribed direction conveying.Imaging portion forms image on the imaging surface of the image forming medium that is transported by the 3rd conveying mechanism.Cutter sweep is arranged between the supply department and second conveying mechanism, and length is cut off image forming medium in accordance with regulations.And the transporting velocity of adjusting first conveying mechanism and second conveying mechanism is poor, so that partly form loop portions across the image forming medium of second conveying mechanism and the 3rd conveying mechanism.
At this, the transporting velocity of adjusting second conveying mechanism and the 3rd conveying mechanism is poor, for example the transporting velocity of the 3rd conveying mechanism is arranged to slower than the transporting velocity of second conveying mechanism, or stop the conveying etc. of the 3rd conveying mechanism, can form loop portions in part across the image forming medium of second conveying mechanism and the 3rd conveying mechanism.
According to this formation, when the image forming medium that surpasses specified length is formed image in imaging portion, that is to say not cutting off image forming medium in cut-out portion, thereby when the image forming medium that is in the state that is connected between supply department and imaging portion forms image, can between cutter sweep and imaging portion, form loop portions.Because this loop portions can absorb load variations former because of supply department's stop supplies image forming medium etc. thereby that produce, therefore can prevent that in imaging portion this load variations is delivered to the imaging moiety of image forming medium.Simultaneously, equally also can prevent to be accompanied by and cut off the imaging moiety that load variations that image forming medium self produced passes to image forming medium.
And when the imaging portion short image forming medium of contrast specified length formed image, image forming medium then was in the state that is cut off by cutter sweep.Therefore, image forming medium can or not form loop portions in the image forming medium across second conveying mechanism and the 3rd conveying mechanism yet.Its result can prevent to produce exposure shade etc., thereby obtain high resolution image.
The 9th kind of image processing system that the present invention proposes comprises imaging portion, and winding mechanism extracts conveying mechanism and development treatment portion.Imaging portion is used for forming image on the imaging surface of image forming medium.The leading section of the image forming medium that winding mechanism is sent clamping from imaging portion, and coiling image forming medium.Extracting conveying mechanism will be to extract by image forming medium behind the winding mechanism coiling and conveying from winding mechanism ahead with the rear end of image forming medium.Development treatment portion will carry out development treatment to being transmitted the image forming medium that comes by the extraction conveying mechanism.
Constitute according to this, the image forming medium behind the formation image behind the winding mechanism coiling, for being drawn out of from winding mechanism, is sent to next handling part by conveying mechanism with the rear end ahead, i.e. development treatment portion., compare when directly being sent to next handling part owing to reel and temporarily hold the image forming medium that forms image at this, can suppress imaging moiety transfer charge variation to image forming medium.When the length of the image forming medium after being cut off by cutter sweep usually is longer than the delivered length between imaging portion and next handling part, when image forming medium is formed image, the front end of image forming medium can enter next handling part, therefore, vibrations that processing produced or load variations in this next handling part can pass to the imaging moiety of image forming medium.But, as described herein, temporarily reel and hold image forming medium, the phenomenon that described vibrations or load variations are delivered to the imaging moiety of image forming medium can not take place then.
The 10th kind of image processing system that the present invention proposes, in winding mechanism, the clamping part of the leading section of clamping image forming medium is to be made by resilient material.At this, the material as the clamping part of the leading section of clamping image forming medium for example can adopt isocyanurate foam (urethane synthetic rubber) elastomeric material.
According to above-mentioned formation, elastic deformation can take place in clamping part when the front end of clamping image forming medium, can prevent to bring vibration or apply load to image forming medium to image forming medium in the clamping process.Consequently, can prevent because of load that imposes on image forming medium or the exposure shade that vibration produced.
The invention effect
Image processing system proposed by the invention, the conveying mechanism of upstream side delivery section is arranged to, when the position along continuous straight runs is carried on the upper side from the vertical direction of supply department with image forming medium, make image forming medium lax loop portions that forms between supply department and imaging portion downwards, and, be provided with and be used for holding the loop portions loop portions spatial accommodation of lax image forming medium at the downside of upstream side delivery section.Constitute according to this, but the volume of the level of reduction means and vertical direction, miniaturization that can implement device.Simultaneously, prevent that in imaging portion load variations is passed to the imaging moiety of image forming medium in the imaging, thereby can obtain high resolution image.
Description of drawings
Fig. 1 is the whole fragmentary cross-sectional view that constitutes of photo processing system with the relevant image processing system A of the invention process state;
Fig. 2 constitutes synoptic diagram for spatial accommodation portion;
The detailed side view that Fig. 3 constitutes for winding mechanism;
Fig. 4 A is the cam mechanism cut-open view of mobile crimping roller, and its cam coupling shaft contacts with first wall;
Fig. 4 B is the cam mechanism cut-open view of mobile crimping roller, and its cam coupling shaft is avoided contacting with second;
Fig. 5 is the synoptic diagram that the control module of image processing system constitutes;
Fig. 6 A is the operation process chart (first half) of image processing system;
Fig. 6 B is the operation process chart (latter half) of image processing system;
Fig. 7 is the synoptic diagram of the operation (its 1) of image processing system;
Fig. 8 is the synoptic diagram of the operation (its 2) of image processing system;
Fig. 9 is the synoptic diagram of the operation (its 3) of image processing system;
Figure 10 is the synoptic diagram of the operation (its 4) of image processing system;
Figure 11 is the synoptic diagram of the operation (its 5) of image processing system;
Figure 12 is the synoptic diagram of the operation (its 6) of image processing system;
Figure 13 is the formation synoptic diagram of laser cell;
Figure 14 relaxes into the figure of loop portions state downwards between supply department and exposure device for printing paper.
Symbol description
The A image forming medium
P printing paper (image forming medium)
The Pa loop portions
W loop portions receiving space
1 supply department
1a paper magazine filling department
3 paper magazines (container)
4 preposition roller units (second conveying mechanism)
5 paper-cutters (cutter sweep)
6 supply units (first conveying mechanism, the 3rd conveying mechanism)
7 exposure devices (imaging portion)
8 winding mechanisms
9 exposure conveying rollers (imaging portion supply unit)
9a upstream side exposure conveying roller
9b downstream exposure conveying roller
11 first supply units
12 second supply units (extraction conveying mechanism)
13 coiling travel mechanisms
17 upstream side delivery section
18 downstream delivery section
63 guide path unit
65 cooling ends
71 laser cells (light source cell)
71a light exit wound of bullet
72R, 72G, 72B LASER Light Source
Embodiment
Below, with reference to accompanying drawing enforcement state of the present invention is described.And following the best is implemented the explanation of state, only enumerates essence of the present invention, does not limit other application products of the present invention or other purposes.
The integral body of photo processing system constitutes
Fig. 1 is the whole fragmentary cross-sectional view that constitutes of photo processing system.Photo processing system shown in Figure 1, the image processing system A that comprises the invention process state, it has: obtain view data, and on the emulsion side (being equivalent to imaging surface) of the photographic paper P of making by photosensitive material such as printing paper (being equivalent to image forming medium), carry out washing mutually of image according to this view data and expose, and has the function of photograph print.This photo processing system comprises film scanner (omitting among the figure) and medium reading part (omitting among the figure).Film scanner is used to scan the two field picture on the photographic film after the development treatment and obtains view data, and the medium reading part is used for reading the medium that is stored in digital camera or the view data of other storage mediums.
In Fig. 1, be provided with the supply department 1 of supply photographic paper P in an end of image processing system A horizontal direction (right-hand end of Fig. 1).This supply department 1 comprises 2 paper magazine filling department 1a, is filled with the paper magazine 3 as container respectively.Described 2 paper magazine filling department 1a are configured in the vertical direction of supply department 1 side by side.Therefore, supply department 1 is strip in vertical direction.Be that the cylinder R that the outside is wound into columnar strip photographic paper P is set in the paper magazine 3 with the emulsion side, accommodate the paper magazine 3 of described cylinder R, releasably be seated in the paper magazine filling department 1a separately.And, wait 2 paper magazines 3 selecting to be loaded among the paper magazine filling department 1a according to stamp with the size one, and from selecteed paper magazine 3 supply photographic paper P.In upstream side delivery section 17 grades that described photographic paper P is described below, carry along the transport path of regulation.From a photographic paper P that is extracted of 2 paper magazines 3, change throughput direction by preposition roller unit 4 grades, and under the supine state of emulsion, export from supply department 1 with general horizontal direction.
Photographic paper P from supply department's 1 output is sent to the exposure device 7 (being equivalent to imaging portion) that is positioned at the downstream by the supply unit 6 (conveying mechanism that is equivalent to the upstream side delivery section) that is arranged on the upstream side delivery section 17.This supply unit 6 is arranged to, vertical direction in supply department 1 position (in this enforcement state is on the upper side, position between 2 paper magazine filling department 1a), can come and go mobile along general horizontal direction, upstream extremity (right-hand end of Fig. 1) in upstream side delivery section 17, also accept from the leading section of the photographic paper P of supply department's 1 output by a pair roller 6a clamping, side (left side of Fig. 1) is mobile downstream under by the state of a pair roller 6a clamping photographic paper P leading section simultaneously.That is to say,, carry photographic paper P along general horizontal direction in the position on the upper side of supply department's 1 vertical direction.And as described below when supply unit 6 arrives the downstream end of upstream side delivery section 17, the loop portions Pa (with reference to Figure 14) of formation photographic paper P between supply department 1 and exposure device 7 starts roller 6a then to exposure device 7 output photographic paper P.
Be provided with upstream side exposure conveying roller 9a and downstream exposure conveying roller 9b (these are equivalent to imaging portion supply unit, when not distinguishing both, are called exposure conveying roller 9) in the exposure device 7.These upstream sides and downstream exposure conveying roller 9a, 9b, along continuous straight runs (arrow D direction among Fig. 1) is directly carried the photographic paper P that is transported by supply unit 6.Therefore, photographic paper P with the same when the upstream side delivery section, under the supine state of emulsion, is carried along general horizontal direction in exposure device 7.
Be provided with exposure position between upstream side and downstream exposure conveying roller 9a, the 9b, utilize laser to carry out exposure-processed being transferred the photographic paper P of coming along general horizontal direction by two exposure conveying roller 9a, 9b.The upstream side of upstream side exposure conveying roller 9a is provided with phase paper detection sensor 10, detects its tip (front end) part and output signal when photographic paper P is admitted to.This phase paper detection sensor 10 is made of ultrared light-emitting component of output and the described ultrared photo detector of acceptance.Position by phase paper detection sensor 10 detection photographic paper P can determine the exposure start time on the exposure position.
The top position of the exposure conveying roller 9 in exposure device 7, be provided with the box-like laser cell of essentially rectangular 71 (being equivalent to light source cell), described laser cell comprises 3 LASER Light Source 72R, 72G, the 72B (with reference to Figure 13) that launches laser respectively, utilizes described laser to form latent image on the emulsion side of photographic paper P.This laser cell 71, the upside of covering upstream side delivery section extends along general horizontal direction.And this laser cell 71 as hereinafter in detail as described in, regulate carrying out light from the laser of LASER Light Source 72R, 72G, 72B output respectively according to view data, and by with adjusted laser radiation on the emulsion side of photographic paper P, carry out image exposure.When so carrying out image exposure, photographic paper P then under by the state of upstream side and downstream exposure conveying roller 9a, 9b clamping in accordance with regulations speed (certain speed) carry.Because laser is to scan at the main scanning direction with throughput direction (the arrow D direction of sub scanning direction: Fig. 1) quadrature of photographic paper P, therefore in the exposure mutually of washing of carrying out image (latent image) of the emulsion side lastrow delegation of photographic paper P.
Between supply department 1 and upstream side delivery section 17, be provided with printing paper cutter 5 as cutter sweep, this cutter sweep cuts off photographic paper P by the specified length of predefined stamp with the size.Usually, by the length of the photographic paper P after described printing paper cutter 5 cut-outs, also longer than the air line distance between exposure position and the printing paper cutter 5.Therefore, after carrying out one section image exposure, running printing paper cutter 5 cuts off photographic paper P.When carrying out this cut-out, stop 1 supply photographic paper P from supply department.In exposure device 7, be necessary to prevent because of the caused load variations of this stop supplies printing paper is delivered to exposure position, prevent that promptly load variations is delivered to the imaging moiety of the photographic paper P of image in forming.As countermeasure, in this enforcement state, when supply unit 6 arrived the downstream end of upstream side delivery section 17, photographic paper P is the lax downwards loop portions Pa (with reference to Figure 14) that forms between supply department 1 and exposure device 7.For example can adopt the exposure device 7 that makes supply unit 6 temporarily stop side downstream to carry the method for photographic paper P to form loop portions Pa here, by control part.After lax formation loop portions Pa appears in photographic paper P, start roller 6a, 6a to exposure device 7 output photographic paper P.Its result, as shown in figure 14, thereby photographic paper P is not cut off between supply department 1 and the exposure device 7 by printing paper cutter 5 and is under the state that is connected, when the imaging surface of photographic paper P is formed image, and the photographic paper P formation loop portions Pa that between supply department 1 and exposure device 7, relaxes downwards.By forming such loop portions Pa, even carrying photographic paper P by exposure conveying roller 9 and forming under the state of latent image, from supply department's 1 stop supplies photographic paper P, the also load variations that can not cause because of this stop supplies printing paper to the exposure position transmission of photographic paper P, the load variations that also can not cause because of cut-out simultaneously to the exposure position transmission of photographic paper P.And, when supply unit 6 arrives the downstream end of upstream side delivery section,, can form loop portions Pa easily by continuing 1 supply photographic paper P under the state that stops supply unit at control part from supply department.
In this enforcement state, be provided with the loop portions spatial accommodation W that is used to hold loop portions Pa at the downside of upstream side delivery section 17.Because upstream side delivery section 17 is positioned at supply department's 1 vertical direction position on the upper side, therefore form described loop portions spatial accommodation easily at supply department's 1 downside.
In exposure device 7, on one side photographic paper P is carried out aforesaid image exposure, by downstream exposure conveying roller photographic paper P be sent to than an exposure position more side in downstream (left side of Fig. 1) on one side.The side, conveying downstream of exposure device 7 is provided with the downstream delivery section 18 that the photographic paper P from exposure device 7 outputs is sent to development treatment portion.Described downstream delivery section 18, as the strip that extends towards vertical direction be arranged on the end (left end of Fig. 1) of an opposite side of image processing system A supply department 1.The lower end position of this downstream delivery section 18 is positioned on the lower end equal height with supply department 1, promptly is positioned on the bottom surface of device.The upper end position of downstream delivery section 18 also is positioned on the position with the roughly the same height of upper end position of supply department 1.
Near the exposure position in downstream delivery section 18, be provided with first supply unit 11.First supply unit 11 is arranged to and can be had the function that the photographic paper P of being come by downstream exposure conveying roller 9b transmission is further transmitted to second supply unit 12 simultaneously around the rotation of regulation axis of rotation.About first supply unit, will be elaborated hereinafter.Second supply unit 12 comprises a plurality of conveying rollers of being provided with along transport path to 12a with form the required guide plate 12b of transport path, and conveying roller then is arranged to 12a, is driven by driving mechanism not shown in the figures.By this second supply unit 12, photographic paper P is sent to development treatment portion (omitting among the figure).
In downstream delivery section 18, also be provided with the spatial accommodation S that is used for temporarily holding photographic paper P.Usually, in case the length of photographic paper P compares from exposure position to the distance the development treatment portion position, photographic paper P can enter development treatment portion in exposure process.At this moment, the vibrations that produce because of the processing in the development treatment portion then can be passed to the exposure position of photographic paper P, can become the reason of exposure shade.At this, by in spatial accommodation S, holding photographic paper P, the generation of the shade that prevents to expose.
As hereafter, according to the throughput direction length difference of photographic paper P, the accommodating method in the spatial accommodation S is also different.Below the enforcement state in, the throughput direction length that relevant photographic paper P is described is greater than setting (for example, the situation 594.1mm) time.
21 (one of clamping elements) are rolled in the crimping that is provided with the reel 20 of the photographic paper P that is used to reel and is used on the outer peripheral face of described reel 20 (one of clamping element) crimping and preserves photographic paper P in the S of spatial accommodation portion.As hereafter, these reels 20 roll 21 with crimping, in clamping photographic paper P throughput direction front, also bring into play its effect as winding mechanism.
Below the S of spatial accommodation portion inner drum 20, be provided with the lax detecting sensor 22 that is used to detect the slack that is accommodated in the photographic paper P in the S of spatial accommodation portion.Described lax detecting sensor 22 is to be made of light-emitting component 22a and photo detector 22b, in case the light that irradiates from light-emitting component 22a is interdicted by photographic paper P, just is judged as slack greater than ormal weight., as shown in Figure 2, connect the line of light-emitting component 22a and photo detector 22b here, be arranged to inclined with respect to horizontal line.
Near laser cell 71 downsides, be provided with the cooling end 65 that is used for cooling laser unit 71.Described cooling end 65 is parts that cold wind passed of being sent here by not shown fan.And, relying on this cold wind, the below of laser cell 71 is cooled, and can suppress the rising of temperature in the laser cell 71 thus, and prevents that LASER Light Source 72R, 72G, 72B occurrence features from changing (moding etc.).
The formation of laser cell
Below, the formation of laser cell 71 is described according to Figure 13.The LASER Light Source 72R that is arranged in the laser cell 71 is made of semiconductor laser (LD), and wavelength is the red laser of 680nm with for example launching.LASER Light Source 72G is made of second harmonic generator (SHG), is converted to for example green laser of 532nm with semiconductor laser with from described semiconductor laser emitted laser.LASER Light Source 72B is made of second harmonic generator (SHG), is converted to for example blue laser of 473nm with semiconductor laser with from described semiconductor laser emitted laser.
In laser cell 71, be positioned at the outgoing side of light source 72R, 72G, 72B, be provided with accordingly modulated laser intensity acoustooptic modulation element (below, be called AOM) 73R, 73G, 73B, and be provided with mirror 74R, 74G, 74B successively, be used to reflect the catoptron 75 of the laser of coming from 74R, 74G, 74B, and the polygon mirror 76 of the laser of in specialized range, coming from 74R, 74G, 74B to the arrow B scanning direction.AOM73R, 73G, 73B adjust the laser of certain intensity of sending from LASER Light Source 72R, 72G, 72B respectively in 0 ~ 100% scope.Mirror 74R is a completely reflecting mirror, and mirror 74G, 74B are half-reflecting mirror.And, utilize the synthetic laser of coming of mirror 74G from AOM73G by utilizing mirror 74R all to reflect from the laser that AOM73R comes, utilize the synthetic laser of coming of mirror 74B again, with these synthetic 3 look laser from AOM73B.The laser that is synthesized by catoptron 75 reflections, incides on the polygon mirror 76.
By exposure conveying roller 9 when arrow D direction (with reference to Fig. 1) is carried photographic paper P, by with certain angular velocity along arrow C direction rotating polygon mirror 76, scan the laser of incident to the other end from an end of printing paper wide cut direction along the arrow B direction.And, in the laser cell 71, between polygon mirror 76 and photographic paper P, be provided with f Theta lens 77, will on the printing paper emulsion side, keep certain translational speed (sweep velocity) by the laser that polygon mirror 76 scans.See through the laser of this f Theta lens 77, the optical emission exit 71a below being arranged on laser cell 71 is to laser cell 71 outside outgoing.
Referring to Fig. 1 and Figure 13, be provided with outstanding guide path unit 63 below the laser cell 71 downwards.Described guide path unit 63 is to be that the tube-like element of essentially rectangular shape constitutes by section, when being connected with optical emission exit 71a, extends near the position of the exposure conveying roller 9 that is positioned at laser cell 71 downsides from the below of laser cell 71.Constitute according to this, on the emulsion side of the photographic paper P that guide path unit 63 will be transported by upstream side and downstream exposure conveying roller 9a, 9b from optical emission exit 71a emitted laser guiding.And the below of guide path unit 63 (light-emitting face) is to be made of glass, prevents that dust from entering 63 inside, guide path unit.Because laser cell 71 is positioned at the upside of exposure position and upstream side delivery section 17, the light of guide path unit 63 is penetrated faced down, therefore penetrate and be difficult to adhere to dust on the face at described light.
The formation of spatial accommodation portion
Below, according to Fig. 2 formation in the S of spatial accommodation portion is described.The more downstream of downstream exposure conveying roller 9b (with reference to Fig. 1) is provided with first supply unit 11 that comprises a pair of conveying roller 11a and guide plate 11b.The set positions of the short transverse of described a pair of conveying roller 11a with exposure conveying roller 9 equal heights, the upstream-side-end at guide plate 11b is formed with peristome 11c simultaneously, therefore acceptant photographic paper P.
First supply unit 11 is arranged to, and can rotate under 90 ° the state around the axis of rotation half-twist (with reference to Figure 12) of regulation, can transmit photographic paper P to second supply unit 12.As shown in figure 12, second supply unit 12 comprises a plurality of conveying rollers to 12a and guide plate 12b, and is used for the photographic paper P of accepting from first supply unit 11 is sent into not shown development treatment portion.
Reel 20 is arranged to, can be around axis of rotation 20a (with reference to Fig. 1) rotation.Before the photographic paper P that begun to reel by reel 20, the surface of the outer peripheral face of reel 20 and crimping roller 21 is from forming the slit.Constitute by this, can easily the photographic paper P that transports be inserted in the slit between reel 20 and the crimping roller 21.
At this, the height setting of accepting photographic paper P by reel 20 with the height of exposure conveying roller conveyor surface, or it is identical to start the height of the conveyor surface before first supply unit 11.Constitute by this, can successfully accept photographic paper P in reel 20 sides by the output of exposure conveying roller.And in state shown in Figure 2, the axle center of crimping roller 21 be positioned at reel 20 the axle center directly over.
Also be provided with the coiling travel mechanism 13 that is used to make winding mechanism 8 to move in vertical direction in the spatial accommodation S, simultaneously described coiling travel mechanism 13 is arranged to, and makes winding mechanism integral body mobile between first height (position of Fig. 2) and second height (position of Fig. 9).Described first height and position is the height of photographic paper P in exposure device, and described second height and position is positioned at the downside of first height and position and away from the position of photographic paper P.Be that winding mechanism 8 begins to reel after the photographic paper P, coiling travel mechanism 8 moves to second height and position from first height and position.And, we can say that also second height and position compares first height and position near exposure position.
Particularly, coiling travel mechanism 13 comprises vertical direction guide member 13a that extends and the synchronous band 13b that is used to winding mechanism 8 is moved along guide member 13a, be fixed with the supporter that is used to support winding mechanism 8 on the described synchronous band 13b, and be with 13b that winding mechanism 8 is moved up and down synchronously by not shown drivings such as motor.And, be mounted with the tube drive unit (motor or reducing gear etc.) that is used to rotate driving reel 20 on the supporter 15.
Here, the S of spatial accommodation portion is adjacent with development treatment portion, and is separated by wall 14.But when on reel 20, moving up and down under the state of coiling photographic paper P, preferably avoid photographic paper P and wall 14 to rub.If this is enlarged the spatial accommodation S of portion, can solve the friction between wall 14 and the photographic paper P, but can the big problem of the whole change of generation device.Therefore, as shown in Figure 2, travel mechanism is arranged to coiling, and winding mechanism 8 is moved to oblique below.Particularly, coiling travel mechanism 13 is arranged to, and the direction that winding mechanism 8 descends more downwards more away from wall 14 moves.Constitute according to this, when avoiding photographic paper P and wall 14 that friction takes place, winding mechanism 8 can move to the below in the spatial accommodation S.
And, utilize coiling travel mechanism 13 that winding mechanism 8 is moved downwards after, the slack that forms on photographic paper P is during greater than setting, by winding mechanism 8 coiling photographic paper P.Like this, have to a certain degree slack, prevent from when the coiling photographic paper P, big vibrations or load variations to be passed to the photographic paper P part that is exposed, the generation of the shade that can prevent from simultaneously to expose etc. by making photographic paper P.Particular content, explanation hereinafter.
By S of spatial accommodation portion or the winding mechanism 8 that as above constitutes is set, can obtain following effect.In the prior art, usually on one side by exposure conveying roller 9 in accordance with regulations speed carry photographic paper P to utilize exposure device 7 to carry out image exposure on one side, but when carrying out scan exposure, if the front at throughput direction is carried out development treatment etc., can be because of photographic paper P be produced big vibrations or load variations, or because of can't guaranteeing to carry out the adequate time of latent image, thereby reduce the image quality that is formed on the photographic paper P.In the present invention as mentioned above, will temporarily be contained in the S of spatial accommodation portion by the photographic paper P of exposure conveying roller output till finishing to exposure, when can prevent that photographic paper P produced big vibrations or load variations, also can fully guarantee to be used to carry out the time of latent image.
In addition, if the strip printing paper that desire is long with delivered length is contained in the spatial accommodation S, then need big spatial accommodation, but can dwindle the space of the S of spatial accommodation portion, also can prevent the maximization of locking apparatus integral body by aforesaid winding mechanism 8 coiling photographic paper P are set.
The formation of winding mechanism
Below, describe the reel 20 of formation winding mechanism and the detailed formation of crimping roller 21 in detail according to Fig. 3.The relevant cam mechanism that is used to crimping roller is moved to the crimping direction (being equivalent to roller change device at interval), as shown in Figure 4.
Reel 20 is arranged to, can be around stationary shaft 200 rotations.Reel 20 is to be formed from a resin, the photographic paper P of can reeling on its outer peripheral face.The axial both ends of reel 20 are provided with circumferential groove 202, are used for hook forces in coil spring 24 from crimping roller to the crimping direction.The circumferential groove 202 of the side end in the direction of principal axis both ends of reel 20 distolateral is provided with the required connection gear 201 of rotating drum 20.
Crimping roller 21 comprises, relatively the roller fulcrum 210 of the axis almost parallel setting of reel 20, be positioned at the outer peripheral face of described roller fulcrum 210 and a plurality of fulcrums that are formed from a resin 211 that are set up in parallel at direction of principal axis and be installed in each fulcrum 211 lip-deep crimp 212, (being equivalent to peripheral part) respectively.Also have, chimeric flexible back-up ring 213 on roller fulcrum 210 is used to prevent that fulcrum 211 from moving to the direction of principal axis along roller fulcrum 210.
Be formed with the slot part 214 that is used for hook coil spring 24 on the axial both ends of roller fulcrum 210.Also have, be respectively equipped with cam coupling shaft 215 than the more approaching axial inboard of slot part 214 at the direction of principal axis both ends of roller fulcrum 210.By cam coupling shaft 215 is moved up and down corresponding to the shape of following described cam mechanism cam surface 203a, crimping roller 21 is moved to crimping direction or non-crimping direction.According to mechanism shown in Figure 3, when reel 20 begins rotation, coupled moving crimping roller 21 also can move (rotation is moved around the stationary shaft 200) along the peripheral direction rotation of reel 20.And crimping roller 21 itself is rotation center with roller fulcrum 210, and it is supported to rotate freely ground.
Below, according to Fig. 4 A, 4B explanation is used to cam mechanism that crimping roller is moved to the crimping direction.Fig. 4 A, 4B be, with winding mechanism shown in Figure 38 at the sectional view of cam part to be cut perpendicular to the face of stationary shaft 200.As Fig. 4 A, shown in the 4B, cam member 203 is connected with stationary shaft 200 by clutch coupling 204.Cam member 203 comprises cam surface 203a, and by the application of force of aforesaid coil spring 24, the front end 215a of cam coupling shaft 215 contacts with cam surface 203a all the time.
Shown in Fig. 4 B, because cam surface 203a is formed in the θ=210 ° scope on cam member 203 outer peripheral faces, so cam coupling shaft 215 also is 210 ° relative to the cam member 203 rotatable scopes that move.And the circumferential two ends of this cam surface 203a are formed with the 1st wall 203b and the 2nd wall 203c, in case cam coupling shaft 215 moves relative to cam surface 203a, 215 of cam coupling shafts and above-mentioned wall 203b, 203c contacts and be positioned.
Fig. 4 A is the synoptic diagram that forms the slit A-stage between crimping roller 21 and the reel 20, and Fig. 4 B is crimping roller 21 210 ° of rotations and the synoptic diagram that utilizes crimping roller 21 crimping photographic paper P states.Though in case make 210 ° of states that just are Fig. 4 B of reel 20 rotations, if further make reel 20 rotations, then cam coupling shaft 215 contacts with the 2nd wall 203c, and makes cam member 203 together center on the rotation on every side of stationary shaft 200 forcibly.At this moment, be in Frotteurism in the clutch coupling 204.That is to say,, crimping roller 21 is rotated outside by 203 restricted portions of cam member (210 °) by clutch coupling 204 is set.
Crimp
Below, will the material of the crimp 212 of one of feature of the present invention be elaborated.That is, crimp 212 is by constituting as rubber-like foam elements such as sponge (for example, isocyanurate foam), and the outer peripheral face of reel 20 between during clamping photographic paper P, be easy to generate elastic deformation.Constitute according to this, between reel 20 and crimping roller 21, can prevent to apply big vibrations or load variations during clamping photographic paper P to photographic paper P.Therefore,, utilize the front of reel 20 and crimping roller 21 clamping photographic paper P throughput directions, also can prevent because of apply the phenomenon that big vibrations or load variations produce exposure shade etc. to photographic paper P even in the exposure-processed process.
Here, the application of force crimping roller 21 of the coil spring 24 by hanging on the direction of principal axis two ends is inconsistent with reel 20, and axial middle part is not subjected to the power of crimping direction to become suspended state, and crimping roller 21 can produce arciform distortion.To this, if utilize above-mentioned foamed material to constitute crimping roller 21, then only produce big elastic deformation at crimping roller 21 axial both ends, can not float at axial middle part, also can be between reel 20 and crimping roller 21 clamping photographic paper P.According to this formation, between reel 20 and crimping roller 21, during clamping photographic paper P, can prevent from photographic paper P, to produce gauffer and load variations the generation of the shade that can prevent to expose.
In addition, the distribution of crimp force on direction of principal axis between above-mentioned occasion reel 20 and crimping roller 21 has nothing in common with each other, but owing in this enforcement state, between reel 20 and crimping roller 21, only be used for clamping photographic paper P, rather than utilize reel 20 and crimping roller 21 to carry photographic paper P, therefore phenomenons such as photographic paper P offset track can not take place to cause because of crimp force unbalanced.
Crimp 212 is not limited only to foam element, for example also can adopt elastomeric material etc., as long as do not apply vibrations or load variations to photographic paper P and the material of elastic deformation takes place when clamping photographic paper P.
Simultaneously, for reducing at the resistance during clamping photographic paper P between the outer peripheral face of crimp 212 and the reel 20, the outer peripheral face of crimp 212 is good to hang down Frotteurism.According to this formation, during clamping photographic paper P, the frictional resistance between crimping roller 21 and the photographic paper P can diminish between reel 20 and crimping roller 21, therefore can reduce vibrations or the load variations that applies to photographic paper P effectively.
Here, low Frotteurism is meant that the friction factor to photographic paper P is lower than 0.5.The value of this friction factor is in the atmosphere of 25 ℃ of atmosphere temperatures, obtains in the slide maximal friction that produced by with Nogata body linear element that crimp 21 equivalent material constitute the time and the correlationship of vertical resistance of photographic paper P upper edge general horizontal direction.Particularly, the maximal friction when measuring earlier the vertical resistance of change is respectively calculated friction factor thereby these data are averaged again.
Control module figure
The formation of the control module of image processing system A is described according to Fig. 5 below.Among described Fig. 5, printing paper front-end detection device 30 is, utilizes from the output signal of phase paper detection sensor 10 outputs and detects the tip (front end) of photographic paper P, and detect photographic paper P and arrive.Simultaneously, according to the moment that the front end of photographic paper P is detected, can judge present photographic paper P in the downstream residing position.Roller driving device 31 is to constitute by driving required driving mechanism of exposure conveying roller 9 or driving circuit etc.And operational throughput pick-up unit 32 is arranged to detect the operational throughput of photographic paper P by the expose to the sun rotation amount of photometry conveying roller 9 of inspection.That is, control exposure conveying roller makes it by certain speed rotation, therefore can utilize code device monitoring operational throughput.
Supply unit control device 60 is used to control the process of the conveying printing paper that supply unit 6 carried out.For example, make it temporarily stop the downstream transport photographic paper P, can reach the purpose that occurs lax formation loop portions Pa in photographic paper P by control supply unit 6.
Printing paper position detection part 33 calculates the position of photographic paper P according to by the front position of printing paper front-end detection device 30 detected photographic paper P with by the operational throughput of operational throughput pick-up unit 32 detected photographic paper P.Particularly, printing paper position detection part 33 comprises that the exposure pick-up unit 33a zero hour, printing paper rear end break away from pick-up unit 33b and insert pick-up unit 33c.
The exposure pick-up unit 33a zero hour is arranged to, and according to the front position by printing paper front-end detection device 30 detected photographic paper P, detection laser is exposed the zero hour.Promptly because from designing the position and the laser explosure position of having stipulated phase paper detection sensor 10, so, just can utilize the exposure zero hour in the exposure pick-up unit 33a calculation exposure position zero hour as long as know the front position of photographic paper P.Whether the printing paper rear end breaks away from pick-up unit 33b and is used to detect and finishes image and wash the rear end of the photographic paper P of picture exposure and break away from from exposure position.Whether insert front end that pick-up unit 33c is used to detect photographic paper P has inserted in the slit between reel 20 and the crimping roller 21.Usually, be about 20mm to the insertion amount in this slit, but also can suitably set described insertion amount.
Exposure control part 34 is arranged to, according to by the exposure time of exposure that pick-up unit 33a the calculates zero hour result of calculation, begin to carry out image exposure with laser, and the laser after will regulating according to view data scans the emulsion side of printing paper, can form latent image thus on the emulsion side of printing paper.
The first supply unit drive division 35 comprises, is used to drive the mechanism of first supply unit.Particularly, the first supply unit drive division 35 comprises, be used for a pair of conveying roller 11a is switched to the crimping drive unit 35a of crimped status and non-crimped status, be used for first supply unit, 11 whole half-twists and switch to horizontality and the unit whirligig 35b of plumbness and being used to rotates the first roller driving device 35c that drives a pair of conveying roller 11a.Here, when carrying out image exposure by exposure device, crimping drive unit 35a switches to non-crimped status to a pair of conveying roller 11a, acts on photographic paper P to avoid load.
The second supply unit drive division 36 comprises, is used to drive the mechanism of second supply unit 12, comprises being used to rotate the second roller driving device 36a that drives a pair of conveying roller 12a.
Supply unit driving control device 37 is used for drive controlling first supply unit 11 and second supply unit 12.For example, in case the rear end that detects photographic paper P by the printing paper position detection part when exposure position breaks away from, then switches to crimped status to a pair of conveying roller 11a.
Set the stamp with the size data that the photographic paper P of image exposure is carried out in storage in the stamp with the size setting device 40.And according to the stamp with the size Data Control coiling travel mechanism 13 or the reel 20 that are stored in the described stamp with the size setting device 40.For example, the length of photographic paper P need not utilize 8 pairs of photographic paper P of winding mechanism to carry out crimping than specified length (being 430.1mm in this enforcement state) in short-term.
Slack pick-up unit 41 is arranged to, and according to the output signal of lax detecting sensor 22, detects slack and whether surpasses ormal weight.Drum drive 42 comprises, is used to rotate the mechanism that drives reel 20.Rotary volume detecting device 43 is arranged to, and can detect the rotation amount of reel 20.For example, by with reel 20 code devices of rotation synchronously, can monitor rotation amount.
Cylinder rotating control assembly 44 has, the function of rotation drive controlling reel 20.Described cylinder rotating control assembly is, according to being inserted by the front end that inserts the detected photographic paper P of pick-up unit 33c, or is stored in stamp with the size data in the stamp with the size setting device 40 etc. according to setting, the rotation of control reel 20 and stopping.
Coiling control device 45 drive controlling coiling travel mechanisms 13.For example, in case detect the crimping operation of finishing crimping roller 21 (θ=120 ° rotation), then will control reel 20 and move to second height and position from first height and position by rotary volume detecting device 43.When the length of photographic paper P in short-term owing to do not need to carry out winding work, therefore reel 20 is kept out of the way the second minimum height and position by winding mechanism 8.Also have when the length of photographic paper P is moderate-length, though carry out operation by 8 pairs of photographic paper P crimping of winding mechanism, but do not carry out detecting the operation of slack, therefore control the centre position (the 3rd position) that reel 20 moves to first height and position and the second height position system by lax detecting sensor.As mentioned above, coiling control device 45 is arranged to, and according to the length of photographic paper P throughput direction, changes the control to coiling travel mechanism, and about the length dimension information of photographic paper P, can obtain from stamp with the size setting device 40.
Here, can utilize computer software or hardware capability construct Fig. 5 show control module.And, can wait according to the printing paper processing power and suitably determine which functional utilization software realization, those functional utilization hardware are realized.
The operation of winding mechanism
Below, begin to the operation till the output of development treatment portion from photographic paper P being carried out image exposure according to the process flow diagram of Fig. 6 A, 6B and Fig. 2, Fig. 7 ~ Figure 12 explanation.And, in the stamp with the size setting device 40, set and make winding mechanism 8 be reduced to the required stamp with the size of second height and position.
At first, detect the front end (step ST1) of the photographic paper P that is cut into the regulation stamp with the size by phase paper detection sensor 10 and printing paper front-end detection device 30.From detecting the front end process stipulated time of photographic paper P, after the zero hour of exposing, pick-up unit 33a detected the exposure start time, emulsion side by 34 pairs of photographic paper P of exposure control part carries out laser scanning exposure, forms image (step ST2) on the emulsion side of photographic paper P.
On one side utilize laser to carry out scan exposure, on one side by exposure conveying roller 9 with photographic paper P fed downstream side, and the front end of photographic paper P is by the guide plate 11b of first supply unit 11.At this moment, because a pair of conveying roller 11a of first supply unit 11 is in the state of removing crimping, therefore can not bring big load to photographic paper P, photographic paper P can be by the position of first supply unit 11.
Because reel 20 is set in advance in first height and position as shown in Figure 2, thus the photographic paper P of first supply unit passed through as described above, in the slit that directly is sent between reel 20 and the crimping roller 21.And, calculate the front position of photographic paper P according to the operational throughput of the testing result of phase paper detection sensor 10 and photographic paper P by printing paper position detection part 33, and judge from this result of calculation whether the front end of photographic paper P is inserted into the slit between reel 20 and the crimping roller 21 (step ST3) by inserting pick-up unit 33c.
When inserting front end that pick-up unit 33c detects photographic paper P and be inserted in the slit between reel 20 and the crimping roller 21 when YES (among the step ST3), begin rotating drum 20 (step ST4).The front end that Fig. 2 shows photographic paper P just has been inserted into the state in the slit.And reel 20 is in the time of rotation counterclockwise among Fig. 2, and crimping roller 21 is similarly around axis of rotation 20a rotation.Afterwards, rely on above-mentioned cam mechanism crimping roller 21 and volume to narrow down gradually with the slit between 20, crimping roller 21 moves to the crimping direction.
At this moment, at the throughput direction rear side of photographic paper P, then carry out laser scanning exposure.The throughput direction front that promptly is in the photographic paper P in the exposure process is clamped between reel 20 and the crimping roller 21.Even like this in exposure process, throughput direction front side by clamping strip photographic paper P, throughput direction that also can easily conversion photographic paper P in small space, or photographic paper P is wound on the reel 20, therefore needn't enlarge buffering (buffering in exposure position downstream) after the exposure that the spatial accommodation S of portion also can guarantee to prevent reliably the exposure shade according to the length of photographic paper P.Therefore, in the whole maximization of anti-locking apparatus, can grow the printing of size.
Then, judge whether reel 20 has rotated ormal weight (in the illustration being 210 °) (step ST5), when judging when having rotated ormal weight when YES (among the step ST5), reel 20 (step ST6) stops the rotation.The detection of this rotation amount is undertaken by rotary volume detecting device 43.Shown in Figure 7, the state of the reel 20 that just stopped the rotation.Here, the rotational speed of reel 20 is set for, makes its rotational speed be substantially equal to the speed of being carried photographic paper P by exposure conveying roller 9.By the rotational speed of such setting reel, can not produce big load change to photographic paper P, the while is the fast winding photographic paper P as much as possible.Also have, if the rotational speed of reel is slightly slower than the transporting velocity of photographic paper P, but then retaining part relaxes and reels, and therefore can guarantee more to prevent photographic paper P is produced load variations.
In step ST6, behind the reel 20 that stops the rotation, drive coiling travel mechanism 13 by coiling control device 45, make winding mechanism 8 drop to second height and position (step ST7) from first height and position.And, about step ST6, step ST7, also can roughly carry out simultaneously.For example, also can before being about to stop reel 20, begin mobile winding mechanism 8 downwards.Here, aforesaid mobile downwards winding mechanism 8 speed settings become, and are good slowly than the speed that passes the photographic paper P in spatial accommodation S.Like this, can not apply big load variations to photographic paper P.Shown in Figure 8, reel 20 moves to the state in the centre position (the 3rd position) of first height and position and second height and position.In Fig. 8, because the decline rate of reel 20 is slow, so the photographic paper P between the reel 20 and first supply unit 11, begin to form lax.Shown in Figure 9, reel 20 drops to the state of second height and position.
Stop the rotation as mentioned above reel 20 and reel 20 moved to second height and position after, in spatial accommodation S, carry photographic paper P by conveying roller.At this moment, break away from pick-up unit 33b by the printing paper rear end and judge whether the rear end of photographic paper P has arrived first supply unit 11 (step ST8).Arrive first supply unit 11 when YES (among the step ST8) in case judge the rear end of photographic paper P, then moved on to step ST15.On the other hand, do not arrive (during NO) in case judge the rear end in step ST8, then be transferred the photographic paper P slack that comes and will become gradually greatly, so as shown in figure 10, the light that sends from light-emitting component 22a is by the state of the lax partition of photographic paper P (step ST9).Even this moment is lax to become big, but since reel 20 along tiltedly down direction from wall 14 away from direction move, so photographic paper P is not taking place to form under the state of friction lax with wall 14.
Here, the state that the rear end of photographic paper P arrives first supply unit 11 is defined as, when the rear end of the photographic paper P state more slightly upstream more side-prominent than a pair of conveying roller 11a.Relevant described overhang can suitably be set.
In case reach the state of Figure 10, slack pick-up unit 41 is just judged and has been formed ormal weight above lax when YES (among the step ST9), rotating drum 20 (step ST10) again.The rotation of described reel 20 is carried out more quickly than the driving of the rotation in the previous steps 4.This is in order to eliminate excessive relaxing as early as possible.By the rotation of reel 20, remove the partition state of the light of light-emitting component 22a, reach ormal weight when following when YES (among the step ST11) in case judge slack, make reel 20 stop (step ST12) again.Afterwards, get back to step ST8, judge whether the rear end of photographic paper P has arrived first supply unit 11.
As slack when NO (among step ST11) not when ormal weight is following,, then carry out the judgement identical with step ST8 in case move on to step ST13.If printing paper rear end no show first supply unit when NO (among the step ST13) is then got back to step ST11, carry out the monitoring of slack again.On the other hand, if the printing paper rear end has arrived first supply unit when YES (among the step ST13), then stop the rotation (step ST14) of reel 20.Figure 11 shows the state that is further rotated reel 20 than the state of Figure 10, but owing to crimping roller 21 has rotated more than 210 °, so clutch coupling 214 is in sliding mode.
Controlling the rotation of reel 20 as mentioned above and stopping is that function by cylinder rotating control assembly 44 is carried out.And, by detecting slacks, and, repeat to rotate and stop the drive controlling at intermittence of reel according to this slack Spin Control reel by lax detecting sensor 22.Determine to repeat this rotation several times and stop by stamp with the size.
In case the rear end of photographic paper P arrives first supply unit 11 and stops the rotation of reel 20, then a pair of conveying roller 11a of first supply unit 11 is switched to crimped status (step ST15) from non-crimped status by crimping drive unit 35a.And, as shown in figure 12, make first supply unit, 11 half-twists become plumbness (step ST16) by unit whirligig 35b.At this moment, the conveyor surface of the conveyor surface of first supply unit 11 and second supply unit 12 is in the state that forms a line.Next, rotation drives a pair of conveying roller 11a, carries, transmits photographic paper P (step ST17) to second supply unit 12.At this moment, counter-rotating (clockwise direction) reel 20.
Second supply unit constitutes conveying mechanism, is to extract by photographic paper P and conveying behind winding mechanism 8 coilings from winding mechanism 8 ahead in order to the rear end with photographic paper P.Consequently, before by winding mechanism 8 coiling photographic paper P and when carrying photographic paper P by second supply unit 12, front and the rear end side of photographic paper P on throughput direction is replaced.And, then be sent to the top by the photographic paper P of a pair of conveying roller 12a clamping of second supply unit 12, be delivered to development treatment portion not shown in the figures and carry out development treatment.
In case finish above-mentioned operation, then get back to the original state of accepting next photographic paper P to second supply unit, 12 transmission photographic paper P.That is, when winding mechanism 8 was risen to first height and position from second height and position, crimping roller 21 also reset into initial position, is in the state that can accept next photographic paper P.Also have, when first supply unit 11 was returned to horizontality, a pair of conveying crimping roller 11a was set to non-crimped status.
More than illustrated when the throughput direction stamp with the size of the photographic paper P carrying method when specified length (for example 594.1mm, first length) is above, when the length of photographic paper P when setting is following, carry out following two kinds of operations according to its length.
Length on the throughput direction of photographic paper P because of the photographic paper P of need not reeling, moves to second height and position with winding mechanism 8 than specified length (for example also will be in short-term than 430.1mm, second length) also in short-term at the beginning on reel 20.Thus, by the photographic paper P of exposure device 7 image exposures, directly by first its direction of supply unit conversion, toward the second supply unit transmission (ST18).Consequently, can reduce the load that is applied on the photographic paper P further.
On the other hand, when the length of photographic paper P is that the 3rd length between first length and second length is (when being 430.1 ~ 594.1mm) in this enforcement state example, only utilize the winding work of winding mechanism, and the mobile winding mechanism in centre position (the 3rd position) of past first height and position and second height and position.Be the step ST7 of Fig. 6 A, make reel be reduced to the centre position.At this moment, the photographic paper P of the 3rd length does not detect so do not carry out slack because of not detecting slack by lax detecting sensor.Therefore, in Fig. 6 A, Fig. 6 B, carry out the operation outside the relevant slack detection step.
As mentioned above, according to this enforcement state, be under the state that is connected thereby cut off between supply department 1 and the exposure device 7 by printing paper cutter 5 when photographic paper P, when the emulsion side of photographic paper P is formed image, the photographic paper P formation loop portions that between supply department 1 and exposure device 7, relaxes downwards.Therefore, even stop 1 supply photographic paper P, in loop portions Pa, can absorb because the described load variations that stops to cause can avoid the photographic paper P of in image forms (in the exposure) partly to transmit this load variations in exposure device 7 from supply department.Similarly also can prevent the load variations that reason cut-out image forming medium self is produced, pass to the imaging moiety of image forming medium.Therefore, the growing of preceding buffering (buffering of exposure position upstream side) usefulness that do not need to expose carried the road, can shorten the length of upstream side delivery section 17, i.e. distance between supply department 1 and the exposure position.Simultaneously,, add the length that shortens upstream side delivery section 17, therefore, can shorten the length of image processing system left and right directions because supply department 1 and downstream delivery section 18 are strip.According to this formation, but downscaled images forms the Unit Installation space.And, because upstream side delivery section 17 is positioned at supply department's 1 vertical direction height and position on the upper side, and the spatial accommodation S of downstream delivery section 18 extends to the sustained height position of supply department's 1 lower end position from the sustained height position of exposure device 7 interior photographic paper P, therefore, the downside of upstream side delivery section 17 only forms the corresponding space, bottom with supply department 1 and downstream delivery section 18, easily forms loop portions spatial accommodation W in this space content.Therefore, also can realize the miniaturization of image processing system A on the vertical direction.Thereby, in the miniaturization that realizes image processing system A, obtain high resolution image.
Also have, according to this enforcement state, by the winding mechanism of coiling photographic paper P is set in downstream delivery section 18, the big space or the long road of carrying of exposure back buffering usefulness need be set, therefore, in can the implement device integral miniaturization, cushion after the exposure of the shade of can guaranteeing to prevent reliably to expose.And, constitute winding mechanism by reel 20 and crimping roller 21, and the throughput direction front that makes the photographic paper P in the exposure is clamped between reel and the crimping roller, when therefore carrying out the printing of strip size (for example more than the 430.1mm), also can more utilize reel 20 coiling strip photographic paper P in the narrow space.Therefore, do not need the maximization of device integral body, just can carry out the printing of strip size.
Also have, after the photographic paper P that begins to reel, winding mechanism 8 is moved to second height and position from first height and position, so photographic paper P can produce between winding mechanism 8 and exposure position laxly, can prevent that the vibrations or the duty ratio that cause because of winding work from changing the imaging moiety that is delivered to photographic paper P.
Simultaneously, make crimping roller 21 by the foamed material elastomeric material, then between crimping roller 21 and reel 20 during clamping photographic paper P, crimping roller 21 produces elastic deformations, can alleviate the vibrations or the load variations that impose on photographic paper P.Particularly, make crimping roller 21 by foamed materials such as isocyanurate foams, this material is easy to produce elastic deformation, and can alleviate the weight of crimping roller 21, therefore crimping roller 21 can not produce big resistance to the photographic paper P that transports, and can alleviate the vibrations or the load variations that impose on photographic paper P.
And, the crimping roller surface is made into low friction, then further reduce the resistance of crimping roller to the photographic paper P that transports, therefore, can further alleviate the vibrations or the load variations that impose on photographic paper P, more can prevent to produce the exposure shade.
Other enforcement states
Formation of the present invention not only is confined to above-mentioned enforcement state, also can comprise other various formations.For example, in above-mentioned enforcement state, be provided with two paper magazine filling department 1a in the supply department 1, but the paper magazine filling department more than 1 or 3 also can be set.
In addition, in above-mentioned enforcement state, when printing paper was strip, handle assembly was arranged to by the photographic paper P after the winding mechanism 8 coiling exposures that are made of reel 20 and crimping roller 21.But be not limited to this structure, also can be arranged to, the front of clamping photographic paper P throughput direction between reel 20 and crimping roller 21, and only change the throughput direction of photographic paper P.
And, in above-mentioned enforcement state, be arranged to front, but be not limited to this by reel 20 and crimping roller 2 clamping photographic paper P throughput directions, as long as can be in exposure process the front of clamping photographic paper P throughput direction, then other elements outside the roller also can.
Also have, in above-mentioned enforcement state, whether insert pick-up unit 33c and be front end that output signal according to phase paper detection sensor 10 detects photographic paper P has inserted in the slit between reel 20 and the crimping roller 21, but be not limited to this, also can near the insertion position, be provided for detecting the sensor special that photographic paper P is inserted situation.Simultaneously, for whether the rear end of detecting photographic paper P has arrived first supply unit 11, also can sensor special be set at first supply unit 11.
And, image processing system of the present invention, not only be confined to form device (picture processing device) as the photograph image that is used for photo processing system of above-mentioned enforcement state, so long as comprise and be used to supply image forming medium supply department, be used to carry upstream side delivery section from the image forming medium of supply department's supply, the imaging surface of the image forming medium that transports from the upstream side delivery section forms the imaging portion of image, be arranged on the downstream of imaging portion, and carry any one image processing system of the downstream delivery section of the image forming medium that transports from imaging portion, all can use the present invention.
Utilizability on the industry
Apparatus of the present invention can be used for while carrying image forming medium formation figure on the imaging surface of image forming medium The image processing system of picture especially, can be used for the light by irradiation laser etc., is being made of photosensitive material The imaging surface of image forming medium on form the image processing system (picture processing device) of latent image.

Claims (9)

1, a kind of image processing system comprises
Imaging portion is used for forming image on the imaging surface of described image forming medium;
The downstream delivery section comprises:
Winding mechanism is used for the leading section of the described image forming medium that clamping sent by described imaging portion and the described image forming medium of reeling; With
Extract conveying mechanism, for ahead, extract described image forming medium and conveying after reeling by described winding mechanism from described winding mechanism with the rear end of described image forming medium; And
Development treatment portion carries out development treatment to the described image forming medium that sends by described extraction conveying mechanism.
2, image processing system according to claim 1 is characterized in that, also comprises:
Supply department is used to supply image forming medium;
The upstream side delivery section comprises first conveying mechanism, will from the vertical direction of supply department on the upper side the image forming medium along continuous straight runs supplied of position carry; And
Shearing device is arranged between supply department and the upstream side delivery section, and length is cut off image forming medium in accordance with regulations,
Wherein, described imaging portion along continuous straight runs is carried the image forming medium that transports from first conveying mechanism on one side, the imaging surface at image forming medium forms image on one side;
Described downstream delivery section is arranged on the side, downstream of imaging portion and vertically extends, carries the image forming medium that transports from imaging portion;
Wherein,
Thereby, the imaging medium is not under the state that is connected when being cut off between supply department and imaging portion in cut-out portion, when imaging portion forms image to the imaging surface of image forming medium, make image forming medium lax upstream side loop portions that forms between supply department and imaging portion downwards by control part;
Described image processing system also comprises the loop portions spatial accommodation, is located at the below of upstream side delivery section, is used to hold the upstream side loop portions.
3, image processing system according to claim 2 is characterized in that:
Described supply department is included in vertical direction a plurality of filling departments of configuration side by side, respectively the inner container that is rolled into columnar image forming medium that accommodates of filling;
Described supply department optionally supplies image forming medium from any one container that is loaded in described a plurality of filling departments.
4, according to claim 2 or 3 described image processing systems,
Described imaging portion comprises imaging portion supply unit, carries the image forming medium that is transported by first conveying mechanism with certain speed; Light source cell, light source is contained in its inside, is used to be emitted on the imaging surface of described image forming medium form the required light of image, and the light that sends from described light source to outside outgoing from the light exit wound of bullet; The guide path unit is used for and will guides the imaging surface of the image forming medium that is transferred by described supply unit into from the light from described smooth exit wound of bullet ejaculation of described light source cell; It is characterized in that:
On described light source cell position adjacent, be provided with the cooling end of the described light source cell of cooling.
5, image processing system according to claim 4 is characterized in that:
The light source cell of described imaging portion is arranged to cover the upside of described upstream side delivery section, and described cooling end is arranged between described light source cell and the described upstream side delivery section.
6, image processing system according to claim 5 is characterized in that:
Described downstream delivery section also comprises
Coiling travel mechanism, be used to make described winding mechanism between first height and position and second height and position, to move, first height and position height that is image forming medium in described imaging portion wherein, second height and position are positioned at the downside of first height and position and away from the position of image forming medium
After described winding mechanism began to reel image forming medium, described coiling travel mechanism moved to second height and position with described winding mechanism from first height and position.
7, a kind of image processing system comprises
Supply department is used to supply image forming medium;
Imaging portion forms image on the imaging surface of the described image forming medium that is transported by described supply department;
Cutter sweep be arranged between described supply department and the described imaging portion, and length is cut off described image forming medium in accordance with regulations; It is characterized in that:
Described image processing system also comprises:
Winding mechanism is used for the leading section of the described image forming medium that clamping sent by described imaging portion and the described image forming medium of reeling; And
Extract conveying mechanism, for ahead, extract described image forming medium and conveying after reeling by described winding mechanism from described winding mechanism with the rear end of described image forming medium,
Be not under the state that is connected when thereby the imaging medium is cut off between supply department and the imaging portion in cut-out portion, when the imaging surface of image forming medium formed image, image forming medium formed slack downwards between cutter sweep and imaging portion in imaging portion.
8, a kind of image processing system comprises
Supply department holds being wound into strip image forming medium cylindraceous;
Second conveying mechanism extracts described image forming medium from described supply department, and past downstream side is to conveying;
The 3rd conveying mechanism, the described image forming medium that acceptance transports from described second conveying mechanism, and toward the prescribed direction conveying;
Imaging portion forms image on the imaging surface of the described image forming medium that is transported by described the 3rd conveying mechanism;
Cutter sweep be arranged between described supply department and described second conveying mechanism, and length is cut off described image forming medium in accordance with regulations; It is characterized in that:
The transporting velocity of adjusting described second conveying mechanism and the 3rd conveying mechanism is poor, so that the part of described image forming medium forms loop portions,
Described image processing system also comprises:
Winding mechanism is used for the leading section of the described image forming medium that clamping sent by described imaging portion and the described image forming medium of reeling; With
Extract conveying mechanism, for ahead, extract described image forming medium and conveying after reeling by described winding mechanism from described winding mechanism with the rear end of described image forming medium.
9, image processing system according to claim 1 is characterized in that:
Described winding mechanism comprises the clamping part of the described leading section that is used for the described image forming medium of clamping, and described clamping part is made by resilient material.
CNB2006101380323A 2005-11-15 2006-11-02 Image forming device Expired - Fee Related CN100535743C (en)

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