JP2005007690A - Drawing equipment - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide drawing equipment of simple structure employing no drum in which the longitudinal feeding direction is made compact and high quality drawing is ensured. <P>SOLUTION: A photosensitive sheet material S fed out from a feeding section 4 is cut by means of a cutter 6 to produce a photosensitive single sheet piece S<SB>1</SB>which is held temporarily in an arcuate holding section 19 on the downstream side of an exposure unit 15. Subsequently, it is fed reversely and the exposure unit 15 performs drawing on the photosensitive single sheet piece S<SB>1</SB>. An elevating/lowering unit 12 is provided between the feeding section 4 and the exposure unit 15. Switching is made between an upper feeding path H and a lower discharging path G by means of the elevating/lowering unit 12 and a pair of pinching rollers 33. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a drawing apparatus for digital automatic enlargement.
[0002]
[Prior art]
Conventionally, this type of drawing apparatus used to produce large posters, large advertisement sheets, etc., uses a vacuum suction mechanism to adsorb a photosensitive sheet material (printing paper or photosensitive film) to a drum, and light from an exposure machine. A drawing apparatus that draws by irradiating with light is known.
Alternatively, a reciprocating actuator is provided inside the drum, and a gripping claw for fixing the edge of the photosensitive sheet material to the drum surface is provided. The gripping claw is operated by the actuator, and the photosensitive sheet material is fixed to the drum for exposure. A drawing apparatus that draws light by irradiating light from a machine is also known (see, for example, Patent Document 1).
[0003]
[Patent Document 1]
JP 2001-201886 A
[0004]
[Problems to be solved by the invention]
In the above-described conventional first drawing apparatus, it is necessary to process a large drum with extremely high precision, which makes it extremely difficult and effective. In addition, the apparatus is complicated by requiring a vacuum pump and the like, and there is a problem that the suction area (area) on the drum cannot be changed, so that it has not been possible to deal with large and small photosensitive pieces. Further, in the conventional second drawing apparatus, if the photosensitive sheet material has a predetermined size, it can be held by the gripper nail, but cannot be used for a size change, and is attached to the actuator and the actuator. There are many problems that a complicated link mechanism is required and the entire installation area is large.
[0005]
[Means for Solving the Problems]
Accordingly, a drawing apparatus according to the present invention includes a feeding unit that feeds an unphotosensitive photosensitive sheet material wound in a roll shape, and a photosensitive sheet that is unexposed by cutting the photosensitive sheet material fed from the feeding unit. A cutter for making a leaf piece, an exposure device for irradiating the photosensitive sheet piece, and an arch holding unit for bending the photosensitive sheet piece forwardly passing through the position of the irradiating portion of the exposure machine to hold it in a bow shape A discharge path that is disposed below the bow-shaped holding portion and discharges the photosensitive sheet piece after drawing, and two holding roller pairs capable of pressing the photosensitive sheet piece at a predetermined interval and above. A drawing apparatus, comprising: an elevating unit disposed between the feeding unit and the exposure machine for switching between an upper drawing path for drawing to the irradiation unit and the bow-shaped holding unit and a lower discharge path. .
Further, the elevating unit can alternately switch the lower roller pair of the upper and lower two gripping roller pairs to the upper drawing path for drawing and the lower discharging path, and at the same time, the upper roller pair is moved to the position above the play position. During the process of switching to the drawing upper feed path and sending one photosensitive sheet piece from the drawing upper feed path to the bow-shaped holding portion, the already drawn photosensitive sheet piece is discharged from the discharge path and the developing device. Configured to send to.
Further, the lower roller pair of the upper and lower two holding roller pairs of the lifting unit lowers from the drawing upper feed path to the corresponding position of the lower discharge path while holding the tip of the already printed photosensitive sheet piece. The space chamber part which accommodates the free drooping surface side which hung down while the said front-end | tip was clamped is comprised.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the present invention will be described in detail based on the illustrated embodiment.
In the side view of FIG. 1, the drawing apparatus B on the upstream side and the developing apparatus C on the downstream side are arranged in series, FIG. 2 shows only the drawing apparatus B, and FIGS. These are the principal part side views which served as operation | movement description (operation | movement description).
[0007]
The developing device C is a conventionally known device including a number of feed roller groups 1 and a storage tank 2 containing a developing solution. Then, the drawing device B includes a feed unit 4, 4 for feeding out a long, non-photosensitive photosensitive sheet material S wound as a roll body 3 (in a roll shape), at an upstream end of the casing (box body) 5. Two are provided above and below (the right end in the figure), and can be alternately switched so that the roll body 3 of one of the feeding sections 4 is fed from the other feeding section 4 when the roll body 3 has a predetermined diameter or less. The photosensitive sheet material S is made of photographic paper or film material, and various materials and configurations can be used.
[0008]
Cutters 6 are disposed in the vicinity of the outside of the outlet 4a of the upper and lower feeding parts 4 and 4, respectively. The cutter 6 is fed from the feeding unit 4 by cutting the (non-exposed) of the PSM S, to prepare a photosensitive sheet pieces S _1.
[0009]
For example, the width dimension of the photosensitive sheet material S (dimension in the direction orthogonal to the drawing sheet) is 5 inches (about 130 mm) to 20 inches (about 510 mm), and is installed in the feeding section 4. The (width dimension × length dimension) as the photosensitive sheet S ₁ is, for example, minimum (5 inches × 7 inches) = about (130 mm × 180 mm) to maximum (20 inches × 30 inches) = about (510 mm × 760 mm) is formed by cutting, and drawing can be performed on the photosensitive sheet S ₁ having such a large dimensional difference as described later.
[0010]
7 is a first infeed path, guide rollers for conveying been fed from the upper side of the feeding portion 4 to the photosensitive sheet pieces S ₁ that is cut by the upper cutter 6, to the merging rollers 9 consisting of a pair of upper and lower rollers It is comprised from the pair 10 ... and the guide receiving plate 11 grade | etc.,. On the other hand, 8 is a second infeed path, is fed from the feeding unit 4 of the lower photosensitive sheet pieces S ₁ that is cut by the lower cutter 6, guide rollers for transporting to the merging rollers 9 10 ... And the guide receiving plate 11 and the like. The first feeding path 7 and the second feeding path 8 have a shape in side view where they join at the position of the joining roller pair 9, and in the vicinity of the downstream side (left side in the figure) of the joining roller pair 9. A lifting unit 12 is disposed.
[0011]
Further, in the vicinity of the downstream side of the lifting unit 12 (to the left side in the drawing) is disposed drawing roller mechanism E, a photosensitive sheet pieces S ₁ forward (leftward movement in the figure), backward ( Feeding can be selectively given in both directions (moving to the right in the figure), and it is driven by a driving device comprising a motor, a power transmission chain, a sprocket, etc. (not shown).
[0012]
Specifically, the drawing roller mechanism E includes two挾圧roller pairs 13, 14 made of Table Te can come into contact with the surface and the back surface of the upper roller and lower roller of the photosensitive sheet pieces S _1, comprises.
From the drawing roller mechanism in the vicinity position of E (unexposed) photosensitive sheet pieces S ₁ irradiation unit 16 with respect to the laser light or LED light, or a photosensitive light beam for the other, the exposure apparatus (exposure unit that irradiates ) 15 is provided.
That is, the position of the irradiation unit 16 (the position of the optical axis L) corresponds to an intermediate position between the two roller pairs 13 and 14 of the drawing roller mechanism E, preferably a central position. Moreover, the挾圧roller pair 13 on the upstream side (right side in the figure), the挾圧roller pair 14 on the downstream side (left side in the figure), as alternatively be挾圧operate on the photosensitive sheet pieces S ₁ Switching means D for switching is provided.
[0013]
The switching means D is, for example, a swinging member 18 mounted so as to swing a small angle (seesaw motion) around a horizontal pivot shaft 17 and the swinging member 18 swinging around the pivot shaft 17 for switching. An actuator such as a solenoid (not shown) for this purpose and an upper roller 13a, 14a (described above) of the pair of negative pressure rollers 13, 14 are rotatable with respect to the rocking member 18 and movable in the vertical and small dimensions. It is comprised by the bearing member with a spring etc. which urged | biased downward downward. Accordingly, in the present invention, alternatively, the negative pressure operation means that the two negative pressure roller pairs 13 and 14 are both negatively operated by the spring of the switching means D during the switching. , Even if present. Thus, by providing a state of挾圧working together intentionally, even in later drawing (during exposure), the photosensitive sheet pieces S _1, (temporarily or stopped, that changes the feed rate (Without) it can be sent with high accuracy.
[0014]
Reference numeral 19 denotes an arcuate holding portion formed in a (substantially) arcuate shape so as to surround the exposure device 15 from the downstream side. The arcuate holding portion 19 is an irradiation portion 16 of the exposure device 15 in an unirradiated state. This is a portion where the photosensitive sheet S ₁ that has once passed (unexposed) is bent upward (in an upright state) and held in an arcuate shape. In other words, the photosensitive sheet S _{1 that} has been passed forward by the drawing roller mechanism E beyond the optical axis L of the irradiating unit 16 moves the exposure unit (exposure unit) 15 to the downstream side. In the state immediately before the exposure process, it is held in a state of being bent into a bow shape so as to be surrounded from the side.
[0015]
Specifically, a storage vacant portion F having an arc shape (bow shape) when viewed from the side is formed by the inner plate 20 (curved or bent in a bow shape) and the outer plate 21. once, the unexposed (a piece) housing the photosensitive sheet pieces S _1. Therefore, the bow-shaped holding part 19 is comprised from the inner board 20, the accommodation empty room part F, the outer board 21, etc. FIG.
Thereafter, the non-photosensitive photosensitive sheet piece S ₁ can be moved back from the arcuate holding unit 19 and can be drawn on the photosensitive sheet piece S ₁ by irradiation of the drawing light beam of the irradiation unit 16 of the exposure machine 15 in operation. .
[0016]
Then, the lower position of the arcuate holding portion 19, after the draw (exposed) photosensitive sheet piece S ₂ (to the left in the figure) the discharge passage G that discharges, arranged. The discharge passage G is an accumulator means 22 and the discharge roller pair 23, comprises a guide plate 24 ... etc., the exposed photosensitive sheet piece S _2, it conveyed to the developing device C of the downstream (see Figure 1).
As shown in FIG. 10, the accumulator means 22 is composed of a vertical opening / closing member 28 pivotably mounted around a support shaft 25, an operating mechanism 29 for swinging the vertical opening / closing member 28, and the like. Further, in the illustrated example, the lower roller 30 is attached to the upper and lower opening / closing member 28, and an upper roller 31 that contacts the lower roller 30 in a state of swinging upward and closing is provided (on the fixed side). 30 is a guide roller pair.
[0017]
The accumulator means 22 acts to absorb the difference in feed speed between the developing device C and the drawing device B. That is, as shown in FIGS. 1 and 10 and the like, when the upper and lower opening / closing member 28 is opened downward, the exposed (after exposure) photosensitive sheet S ₂ hangs down in a U-shape and Even if the feeding speed is lower than the discharging speed of the drawing apparatus B, the accumulator means 22 absorbs the feeding speed.
[0018]
The elevating unit 12 has two upper and lower gripping roller pairs 32 and 33 that can freely press the photosensitive sheet pieces S ₁ and S ₂ . Reference numeral 34 denotes an elevating frame that can be moved up and down and reciprocally moved by a driving means (not shown), and upper and lower gripping roller pairs 32 and 33 are provided at predetermined intervals in the upper and lower directions. Between the exposure machines 15 and upstream of the exposure machine 15 and the discharge path G.
[0019]
Drawing the upper sending passage H is the irradiation unit 16, arcuate retaining portions 19 as described above (unexposed) a feed path for feeding a photosensitive sheet pieces S _1, and the drawing upward sending passage H, lower In order to switch to the discharge path G, the elevating unit 12 is raised and lowered (in the vertical direction) by a driving mechanism (not shown).
[0020]
The lower roller pair 33 of the two gripping roller pairs 32 and 33 of the elevating unit 12 is alternately switched to the drawing (exposure) upper feed path H and the lower discharge path G. That is, as shown in FIGS. 7 to 9, the lower position corresponds to the rising position corresponding to the upper drawing path H for drawing and the lower position corresponding to the lower discharge path G as shown in FIGS. The roller pair 33 is switched.
[0021]
Simultaneously with the switching operation of the lower roller pair 33, the upper roller pair 32 is moved to the play upper position K as shown in FIGS. 7 to 9, and the upper drawing position as shown in FIGS. It is switched to the transmission path H. Therefore, during the process of sending one photosensitive sheet piece S ₁ from the drawing upper feed path H to the arcuate holding unit 19, the already drawn (after drawing) photosensitive sheet piece S ₂ is discharged from the discharge path G. It is configured to send to the developing device C (see FIG. 10).
[0022]
Of the two upper and lower gripping roller pairs 32, 33 of the lifting unit 12, the lower roller pair 33 is the tip 35 of the photosensitive sheet S ₂ that has already been drawn (exposed) —the tip fed from the feeding portion 4. 9 is held as shown in FIG. 9, and the lifting unit 12 is lowered as indicated by an arrow N in the holding state, and the lower discharge path G from the drawing upper feed path H. The lower roller pair 33 moves down to the corresponding position.
[0023]
As shown in FIGS. 1 and 2, the photosensitive sheet piece S ₂ after drawing is the tip 35, the hanging state being pinched by the lower roller 33 (at arrow M) are shown. The casing 5 has a space chamber 36 for accommodating the free-hanging surface M of the photosensitive sheet piece S ₂ in a state of hanging this way. This prevents to give small scratches on the exposure surface of the photosensitive sheet piece S ₂ after drawing.
[0024]
Next, the operation (operation) of the above-described drawing apparatus according to the present invention will be mainly described in the order of steps, and a specific configuration will be additionally described.
1, 2, and 3, the unexposed photosensitive sheet material S is fed out from either one of the two feeding portions 4 and 4 on the right side of the drawing. A predetermined length is conveyed (delivered) from the feeding unit 4. After that, the cutter 6 is cut to a predetermined length, and as shown in FIGS. 3 to 4, passes through the first feeding path 7, and between the merging roller pair 9, and further, the elevating unit 12 (at the lowered position). As shown in FIG. 5, the paper is carried into the bow-shaped holding portion 19 (given feed) through the drawing roller mechanism E between the upper pair of holding rollers 32.
[0025]
The drawing roller mechanism E, at the left挾圧roller pair 14 in FIG. 5 and FIG. 6, and pinching the photosensitive sheet trailing end of the leaf pieces S ₁ unexposed. That is, FIG. 6 is an enlarged view of the main part of FIG. 5, but the rocking member 18 is swung (by an actuator not shown), and the upstream side (right side in the drawing) pair of repulsive rollers 13 is open. in not in contact with the photosensitive sheet pieces S _1, at挾圧roller pair 14 on the downstream side (left side in the figure), and clamping a photosensitive sheet trailing end of the leaf pieces S _1.
[0026]
37 is a sensor, P is illustrated the rear end of the stop position range of the photosensitive sheet pieces S ₁ (stop zone). Photosensitive sheet rear leaflets S ₁ of the unexposed is by the sensor 37, is detected, immediately conveyance stop, or the conveyance stop the provision length worth of preset from send and performed. In this way, the photosensitive sheet pieces S ₁ is stopped stop position range (stop zone) P. The exposure unit optical axis L corresponds to the left end (downstream end) of the stop position range (stop zone) P. That is, in FIG. 6, the photosensitive sheet piece S ₁ is stopped at a position where a slight margin is formed at the rear end of the photosensitive sheet piece S ₁ or at a position where drawing (exposure) is started without any margin. To do.
[0027]
During the above steps, the elevating unit 12 was in the lowered position, and the upper roller pair 32 was carrying (feeding). Thereafter, as shown in FIGS. 6 to 7, the elevating unit 12 is raised as indicated by the arrow Q, and the lower roller pair 33 is made to correspond to the drawing upper feed path H and held by the arcuate holding portion 19. The photosensitive sheet S ₁ is started to be conveyed in the reverse direction (arrow R direction) by the counter pressure roller pair 14 on the left side (downstream side) of the drawing roller mechanism E, and the drawing unit 16 irradiates the drawing light beam. Then, drawing (exposure) is started. At the beginning of such drawing step, the right挾圧rollers 13 (upstream side) has a clearance T ₁₃ (optionally open), it does not contribute to the conveyance. In other words, the switching means D, the one upper roller 14a is, At a right after exposure start, although挾圧the photosensitive sheet pieces S _1, the other upper roller 13a is not involved in the transport, maintain an open state.
[0028]
However, as shown in FIG. 8, during transport of the direction of the arrow R of constant speed, by switching means D, and one of the upper roller 14a and the open state, at the same time, the other upper roller 13a to the photosensitive sheet piece S ₂ Contact under pressure. In FIG. 8, a gap T ₁₄ is generated in the pair of roller rollers 14 on the downstream side (left side).
[0029]
In this way, in principle, only one of the two roller pairs 13 and 14 is transported, so that the photosensitive sheet pieces S ₁ and S ₂ are not wrinkled, scratched, and uniform. It is possible to feed at a high speed, and it is possible to expose the front and rear ends of the photosensitive sheet pieces S ₁ and S ₂ . That is, in the stop position range P shown in FIG. 6, the rear end of the photosensitive sheet S ₁ once sent to the left is stopped at the intermediate position between the two roller pairs 13 and 14. In this case, if the left roller pair 14 is open and the right roller pair 13 is closed (can be pressed), the feeding cannot be started. That is, in the present invention, as described with reference to FIG. 6, the rear end can be exposed.
[0030]
On the other hand, as shown in FIG. 8, during the exposure (drawing) process, the right side roller pair 13 is opened and the left side roller pair 14 is closed (different from FIG. 8). If it is possible, the photosensitive sheet S ₁ (S ₂ ) cannot be carried out to the end. In other words, a state in which no feed is given to the tip occurs at the end. In the present invention, as shown in FIG. 8, since the right roller pair 13 is closed and operated, there is an advantage that it can be carried out to the end.
[0031]
In short, the drawing roller mechanism E that transports the photosensitive sheet pieces S ₁ and S ₂ during exposure transports only one of the two roller pairs 13 and 14. However, in the middle of switching between both roller pairs 13 and 14, both roller pairs 13 and 14 are simultaneously in a roller pressure state (conveying force transmission state) for a short time.
[0032]
As an advantage of such a configuration, in addition to the above-described advantages, the photosensitive sheet pieces S ₁ and S ₂ are not subjected to stress (distortion) due to an error of the drawing roller mechanism E during exposure, and smoothly and accurately fed. High quality drawing is realized by giving uniform.
In addition, the two roller pairs 13 and 14 can be easily switched to the under pressure state alternately (alternatively) by switching the swing member 18 (by a drive mechanism not shown) around the pivot shaft 17.
[0033]
Next, sandwiching rollers 33 of the lower lift unit 12, as shown in FIG. 8, during exposure, an open ─── words, having a gap T _33. A switching drive mechanism (not shown) is provided for moving one of the upper and lower rollers of the holding roller pair 33 up and down by a minute dimension. Thus, during exposure, it can eliminate the influence of (discharge) sandwiching rollers 33 to the photosensitive sheet piece S ₂ after the photosensitive. In other words, the speed error of sandwiching rollers 33, the photosensitive sheet piece S _2, can be prevented to give stress (strain), giving a smooth feed, to allow for high quality rendering.
[0034]
Next, as shown in FIGS. 8 to 9, when the exposure is completed, the gripping roller pair 33 (opened as described above) is closed and the tip 35 is gripped. Then, the tip 35 of the photosensitive sheet piece S ₂ is (to the right in the figure) passing through the sensor 37 is sensitive (detection), the stop conveyance of the photosensitive sheet piece S ₂ a tip 35, below the while sandwiching at sandwiching rollers 33, it is lowered as shown by an arrow N, as shown in FIG. 10, the discharge passage G below, under the sandwiching rollers 33, and, the photosensitive sheet piece S ₂ tip 35 And the upper gripping roller pair 32 is made to correspond to the upper drawing path H for drawing, and the elevating unit 12 returns to the initial position shown in FIG.
[0035]
Thereafter, as shown in FIGS. 10 and 1, the exposed photosensitive sheet S ₂ is conveyed to the automatic developing device C by the pair of gripping rollers 33 that are rotationally driven by the drive motor 38. At this time, the accumulator means 22 is used. opens, exposed photosensitive sheet piece S ₂ is discharged at a high speed in the housing space 22A of the accumulator means 22.
Thus, during the process of leaf S ₂ photosensitive sheet below is discharged at high speed, preferably above, cutting the unexposed photosensitive sheet S to a predetermined length by the cutter 6, as a photosensitive sheet pieces S ₁ As shown in FIGS. 3 to 6, the wafer is conveyed to the exposure position (bow-shaped holding unit 19).
[0036]
The exposed photosensitive sheet piece S ₂ has left the sandwiching rollers 33 below the lifting unit 12, and that the photosensitive sheet pieces S ₁ unexposed is in the exposure position (the position of the arcuate holding portion 19), After confirming with various sensors, the elevating unit 12 ascends in the direction of the arrow Q as shown in FIGS. Thereafter, the process proceeds to the above-described process (exposure process).
[0037]
In the drawing, since the two feeding portions 4 and 4 are provided above and below, the photosensitive sheet materials S and S having different types and widths can be selected and fed out. Of course, it is free to reduce the size and simplification of the structure by using a single feeding portion 4. Reference numeral 39 denotes a lock mechanism.
[0038]
In the present invention, as described above, the unexposed photosensitive sheet material S wound in a roll shape is fed out, and the photosensitive sheet material S fed out from the feeding unit 4 is cut and unexposed. a cutter 6 for making a photosensitive sheet pieces S _1, the photosensitive leaf piece S ₁ and drawing roller mechanism E giving the feed to the forward-backward directions, the above photosensitive sheet pieces S ₁ in the vicinity of the image drawing roller mechanism E an exposure device 15 which irradiates from the irradiation portion 16 against, the bow by curved the photosensitive sheet pieces S ₁ which passed forward upward by the drawing roller mechanism E the position of the irradiation unit 16 of the exposure machine 15 an arcuate holding portion 19 for holding, provided, configured to render the photosensitive leaf piece S ₁ from該弓type holding unit 19 by backward the photosensitive sheet pieces S ₁ by the irradiation of the irradiation unit 16 As a result, the following actions and effects are achieved.
[0039]
In other words, the conventional drum and suction device can be omitted, high-precision processing can be significantly reduced, and the length in the conveyance direction (the horizontal dimension in the figure) can be reduced. Thus with the apparatus can be made compact, it can be subtly temporarily holding the photosensitive sheet pieces S ₁ unexposed to bow in arcuate holding portion 19 by utilizing the space above.
Since the feed can be given from the arcuate holding part 19 with a minimum number of rollers, the feed speed can be made uniform, and unevenness in brightness, distortion and the like do not occur. Thus, high-quality drawing can be performed while the structure is simple. Furthermore, it is possible to apply from ultra-large sheet pieces to ultra-small sheet pieces. Further, it is possible to provide a device that is easy to manufacture and inexpensive.
[0040]
Furthermore, the present invention is drawn roller mechanism E is provided with a two挾圧roller pairs 13 and 14 consisting of Table Te can come into contact with the surface and the back surface of the upper roller and lower roller of the photosensitive sheet pieces S _1, and 2 one of causes to correspond to the intermediate position of該挾pressure roller pair 13, 14 to the position of the irradiation portion 16, alternatively挾圧operate two該挾pressure roller pair 13, 14 with the photosensitive sheet pieces S ₁ since the configuration provided with a switching means D for switching to, in writing (exposure), they carry two挾圧roller pairs 13, 14 either selects and photosensitive sheet pieces S ₁ of the photosensitive sheets stress is less likely to take on the leaf pieces S _1, it does not cause distortion. As a result, a high-quality image without distortion can be obtained.
[0041]
【The invention's effect】
The present invention has the following remarkable effects by the above-described configuration.
According to the first, second, and third aspects, the conventional photosensitive drum and the suction device can be omitted, and the whole can be manufactured at low cost and without requiring ultra-precision machining. In addition, the conveyance direction can be skillfully sent by forward / reverse switching and up / down switching, so that the length dimension (in the left-right direction of the drawing) can be remarkably reduced, the size can be reduced, and the installation location can be reduced. Furthermore, the conveyance path can be switched quickly and reliably by the reciprocating operation of the elevating unit 12.
(According to claim 2) Drawing and discharging can be performed simultaneously, and the entire flow (conveyance) can be shortened.
(According to claim 3,) the previously drawn (exposed) photosensitive sheet piece S _2, without damaging, it can reliably, to correspond lowered to the discharge passage G below.
[Brief description of the drawings]
FIG. 1 is an overall simplified explanatory side view showing an embodiment of the present invention.
FIG. 2 is a side view of an embodiment of the present invention.
FIG. 3 is a side view illustrating a cutting process.
FIG. 4 is a side view illustrating a carrying-in process for carrying a photosensitive sheet piece into an arcuate holding unit.
FIG. 5 is a side view showing a state of being held by an arcuate holding portion.
FIG. 6 is an enlarged explanatory diagram of a main part.
FIG. 7 is a main part enlarged explanatory view showing a state of drawing (exposure) disclosure;
FIG. 8 is a side view for explaining a drawing (exposure) process.
FIG. 9 is a side view showing an exposure completion state.
FIG. 10 is a side view of the main part for explaining the positional relationship between the drawing upper feed path H and the discharge path G and for explaining the movement of the photosensitive sheet.
[Explanation of symbols]
4 Feeding section 6 Cutter 12 Lifting unit 13 Pressure roller pair 14 Pressure roller pair 15 Exposure machine 16 Irradiation section 19 Arc-shaped holding section 32 Holding roller pair 33 Holding roller pair 35 Tip 36 Space chamber C Developing device D Switching means E Drawing roller mechanism G Discharge path H Drawing upper feed path K Play upper position S Photosensitive sheet material S ₁ (unphotosensitized) photosensitive sheet piece S ₂ (after drawing) photosensitive sheet piece

Claims (3)

An unexposed photosensitive sheet material (S) wound in a roll shape is fed out, and the photosensitive sheet material (S) fed out from the feeding portion (4) is cut to be unexposed. a photosensitive sheet piece cutter (6) to make a _{(S 1),} forward the photosensitive sheet pieces _{(S 1)} exposure apparatus for irradiating the (15), the irradiation of the exposure machine (15) the position of (16) The photosensitive sheet piece (S ₁ ) that has passed therethrough is bent upward and is held in an arcuate shape, and an arcuate holding part (19) that is disposed below the arcuate holding part (19) and after drawing is provided. photosensitive sheet piece and _{(S 2)} discharge path for discharging the (G), the photosensitive sheet pieces _(S 1) _{(S 2)}挾圧freely two roller mechanism pair (32) (33) up and down a predetermined distance And is disposed between the feeding section (4) and the exposure machine (15) for drawing on the irradiation section (16) and the arcuate holding section (19). Sending passage (H) and the lower exhaust passage of the elevating unit for switching to (G) (12), drawing apparatus characterized by comprising. The elevating unit (12) alternates the lower pair of rollers (33) of the upper and lower gripping roller pairs (32) and (33) to the upper drawing path (H) for drawing and the lower discharge path (G). Simultaneously with the switching, the upper roller pair (32) is switched to the play upper position (K) and the upper drawing path (H) for drawing, and from the upper drawing path (H) to the bow-shaped holding part (19 The photosensitive sheet (S ₂ ) already drawn is discharged from the discharge path (G) and sent to the developing device (C) during the process of sending one photosensitive sheet (S ₁ ) to). The drawing apparatus according to claim 1. Two upper and lower sandwiching rollers of the lifting unit (12) (32) (33) below the rollers of the (33), already while pinching the leading end (35) of the drawn photosensitive sheet pieces _{(S 2)} A space chamber (36) configured to descend from the drawing upper feed path (H) to a corresponding position of the lower discharge path (G), and to store the free hanging surface side that is suspended while the tip (35) is held. The drawing apparatus according to claim 2, further comprising:

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