JPH07267406A - Photosensitive material feeding device - Google Patents

Abstract

PURPOSE:To improve the homogeneity of the developed state among multiple press plates by surely feeding a photosensitive material mounted first to an automatic developing device first. CONSTITUTION:A press plate feeding device 2 feeds sheet-like press plates P one by one from above to the press plate insertion port 4 of a developing machine 1, and it is provided with a press plate guide section 10 and a press plate conveyance section 11. The press plate guide section 10 is used to tilt and mount multiple press plates P on the developing machine 1, and it is provided with a separating mechanism 12 separating the lowermost one from multiple press plates P. The press plate conveyance section 11 conveys the press plate P separated by the separating mechanism 12 to the press plate insertion port 4.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a photosensitive material supplying apparatus, and more particularly to a photosensitive material supplying apparatus for supplying sheet-like photosensitive materials one by one from above to a photosensitive material supplying port of an automatic developing device.

[0002]

2. Description of the Related Art A photosensitive material such as a film or a printing plate on which an image has been exposed is supplied to an automatic developing device (developing machine) for development processing. The developing machine is provided with various processing tanks such as a developing tank and a water washing tank, and the supplied photosensitive material is conveyed to each processing tank and subjected to a developing treatment and a water washing treatment. When supplying a large number of photosensitive materials to the developing machine, a photosensitive material supplying device is used.

As a photosensitive material supply device of this type, the one disclosed in Japanese Utility Model Laid-Open No. 59-84543 is known. This photosensitive material supply device is provided above the developing machine, and is obliquely arranged on the light shielding lid of the developing machine. This photosensitive material supply device includes a supply table on which a photosensitive material is tilted and placed, a vacuum suction head for suctioning and transporting the photosensitive material on the supply table, and a two-sheet taking of the photosensitive material transported by the vacuum suction head. And a pair of feeding rollers arranged below the peeling roller,
And a photosensitive material conveying section for conveying the photosensitive material toward the photosensitive material intake port of the developing machine.

In this photosensitive material supply device, the photosensitive material is sucked by the vacuum suction head and is conveyed to the delivery roller via the peeling roller. When the photosensitive material is conveyed to the feeding roller, the vacuum suction is released, and the photosensitive material is conveyed to the developing machine by the feeding roller.

[0005]

In this conventional configuration,
The vacuum suction head is arranged above the supply table and sucks the topmost photosensitive material. Therefore, for example, if a new photosensitive material is placed in a state where the photosensitive material remains on the supply table, the old photosensitive material remains on the supply table for a long time. If there is a large difference in the standing time between the light-sensitive materials to be processed, it will not be possible to obtain a uniform development state due to changes with time.

[0006] The problem to be solved by the present invention is to ensure that the photosensitive material placed first is supplied to the automatic developing device without fail so that good development can be performed on a plurality of photosensitive materials. That is. Still another problem to be solved by the present invention is to reliably separate the photosensitive material and supply it to the automatic developing device side.

[0007]

According to a first aspect of the present invention, there is provided a photosensitive material supply device for supplying a sheet-shaped photosensitive material one by one from above to a photosensitive material supply port of an automatic developing device. Of the light-sensitive material, the separating means for separating the lowest photosensitive material from the rest, and a supporting portion for supporting the lowest photosensitive material separated by the separating means, are provided above the automatic developing device. Of the lowermost photosensitive material, which is disposed between the lower end portion of the mounting portion and the photosensitive material supply port and is supported by the supporting portion, and supplies the photosensitive material. And a transporting means for transporting to the mouth.

According to a second aspect of the invention, in the photosensitive material supplying apparatus according to the first aspect, the separating means holds the lower end of the lowest photosensitive material placed on the mounting portion and lowers it. And holding means for advancing the photosensitive material lowered by the holding and descending means to enter the upper surface side of the lowermost photosensitive material from the lower end side of the photosensitive material to separate the lowermost photosensitive material from the rest. Is.

According to a third aspect of the present invention, in the photosensitive material supplying apparatus according to the second aspect, the advancing means is composed of a pair of inclined rotating members and a plurality of spanning members bridged between the pair of rotating members. It includes an advancing member and a drive mechanism for orbiting the orbiting member. According to a fourth aspect of the present invention, in the photosensitive material supplying apparatus according to the third aspect, the supporting portion is 1
It has a rotating member which is arranged along the pair of surrounding members and is inclined and supports the lowest photosensitive material.

According to a fifth aspect of the present invention, in the photosensitive material supplying apparatus according to any one of the second to fourth aspects, the holding / lowering means is a vacuum suction means for supplying the lowest photosensitive material, and a vacuum suction means. And an elevating mechanism for elevating. According to a sixth aspect of the present invention, in the photosensitive material supplying apparatus according to the fifth aspect, the elevating mechanism is a cam mechanism connected to the vacuum suction means, and an abutting member provided on the advancing member and abutting the cam mechanism. And have.

[0011]

In the photosensitive material supplying apparatus according to the first aspect, when a plurality of sheet-shaped photosensitive materials are inclinedly placed on the placing portion, the separating means leaves the lowest one of the photosensitive materials. And the separated lowest photosensitive material is supported by the supporting portion. Further, the lowest photosensitive material supported by the supporting portion is conveyed to the photosensitive material supply port by the conveying means arranged between the lower end of the mounting portion and the photosensitive material supply port of the automatic developing device. Here, since the lowest photosensitive material is sequentially conveyed to the photosensitive material supply port of the automatic developing device among a plurality of photosensitive materials that are inclinedly mounted on the mounting portion, old photosensitive material is transferred to the mounting portion. The difference in the standing time between the light-sensitive materials, which remains for a long time, is reduced.

In the photosensitive material supplying apparatus according to the second aspect, when a plurality of sheet-shaped photosensitive materials are tilted and mounted on the mounting portion, the holding / lowering means causes the lower end of the lowermost one of the photosensitive materials. Hold and lower to start separation. Then, the entrance means enters the upper surface of the photosensitive material from the lower end side of the lowered photosensitive material to completely separate the lowest photosensitive material from the remaining photosensitive materials, and the separation is completed. This ensures a series of separating operations from the start to the completion of the separation of the lowest photosensitive material.

In the photosensitive material supplying apparatus according to the third aspect of the present invention, the drive mechanism causes the pair of inclined rotating members to rotate, so that the plurality of introductory members bridged between the rotating members serve as the lowest photosensitive material. It has entered the entire upper surface side. In the photosensitive material supplying apparatus according to the fourth aspect, the arrangement of the supporting portions is inclined along the pair of circling members, and the lowermost photosensitive material is supported by the rotating member. At this time, the lowermost photosensitive material supported by the supporting portion tries to move in the conveying direction due to the inclined arrangement of the supporting portion and the rotation of the rotating member, so that the lowermost photosensitive material is reliably conveyed from the supporting portion. Done.

In the photosensitive material supply device according to the fifth aspect, since the lowest photosensitive material is adsorbed by the vacuum adsorbing means which is moved up and down by the elevating mechanism and separated from the rest of the photosensitive material, the separation is surely started. To be done. In the photosensitive material supplying apparatus according to claim 6, the vacuum suction means is moved up and down by contacting the contact member provided on the advancing member with the cam mechanism connected to the vacuum suction means. No complicated mechanism is required.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to FIG. 1, an automatic developing system adopting an embodiment of the present invention comprises a developing machine 1, a plate feeding device 2 obliquely arranged above the developing machine 1, and a developing machine 1. It has a printing plate stocker 3 arranged at the rear. Developing machine 1
Is for developing and drying the printing plate,
Inside, various processing tanks such as a developing tank and a water washing tank are provided. A plate insertion port 4 and a feed tray 4a are provided on the front surface of the developing machine 1. An inlet roller pair 5 for carrying the supplied printing plate therein is disposed inside the developing machine 1 so as to face the plate insertion port 4. Further, on the rear side of the developing machine 1, there is provided a plate discharge port 6 for discharging the processed plate. The plate stocker 3 is arranged so as to face the plate discharge port 6. Upper covers 7a and 7b are provided on the upper part of the developing machine 1, and maintenance work inside the developing machine 1 is performed by removing the upper covers 7a and 7b.

As shown in FIGS. 1 to 3, the plate supply device 2 has mounting frames 8 arranged on both sides of the plate insertion port 4 of the developing machine 1, and the upper end of the mounting frame 8 allows the developing machine 1 to reach the developing machine 1. The main body frame 9 arranged obliquely upward, the plate guide section 10 provided in the main body frame 9, and the plate conveying section 11 arranged between the print guide section 10 and the developing machine 1. Have

The mounting frame 8 has a pair of base members 8a extending along both sides in the lower part of the developing machine 1 and a vertical member 8 extending upward from the base member 8a and fastened to the developing machine 1.
b and an oblique member 8c extending upward and rearward at an angle of 45 ° from the upper end of the vertical member 8b. Diagonal member 8c
A body frame 9 is attached to the. As shown in FIG. 3, the main body frame 9 has side frames 19 arranged on both sides. A switch panel 20 is provided on the left side surface of the side frame 19 in FIG. The switch panel 20 includes a start button 21 and a return button 22.
Also, a manual insertion button 23 is arranged. The start button 21 is for instructing the start of the plate supply operation. The return button 22 is used to perform a return operation when the plate guide portion 10 is not in a normal position when starting the plate supply. The manual insertion button 23 is used when the plate is manually inserted from the side of the feed tray 4a and development is performed.

The main body frame 9 has an abutting plate 40 bridged between the side frames 19. The contact plate 40 is a member having an L-shaped cross section, and as shown in FIG. 4, two locking members 41 having an L-shaped cross section are fixed to the lower end thereof. The locking member 41 has two pieces for preventing the printing plate P from being picked up twice.
A number of separation springs 42 are arranged. The separation spring 42 is
For example, a metal coil spring having a diameter of about 8 mm.
Further, a push switch 43 is fixed to the lower end of the central portion of the contact plate 40. The push switch 43 is a sensor for detecting that the plate P is placed on the plate guide unit 10. The plate guide unit 10 has a separation mechanism 12 and a support mechanism 13. The separation mechanism 12 has an approach mechanism 15 and a holding / lowering mechanism 14.

The advancing mechanism 15 includes a drive shaft 25 disposed below the device, and a pair of drive sprockets 26 disposed in both side frames 19 at both ends of the drive shaft 25.
It has a pair of driven sprockets 27 arranged in the upper part of both side frames 19 and a pair of roller chains 28 bridged by the sprockets 26, 27. Drive shaft 25
As shown in FIGS. 8 and 9, a gear 29 is fixed to one end of the. A pinion 30 meshes with the gear 29. The pinion 30 is fixed to the output shaft of the drive motor 31, and as a result, the driving force of the drive motor 31 is transmitted to the drive shaft 25 via the pinion 30 and the gear 29.
As shown in FIG. 6, the driven sprocket 27 is rotatably supported by a driven shaft 32 that is arranged so as to project inward from the side frame 19.

As shown in FIG. 7, the roller chain 28 is supported by a pair of rails 33 which are vertically spaced from each other in the both side frames 19. Twelve sets of L-shaped attachments 34 are attached to the roller chain 28 at equal intervals. Separation rollers 35 are attached to the inner facing attachments 34. That is, the separation rollers 35 are bridged between the roller chains 28 at equal intervals. Separation roller 3
5 is a fixed shaft 3 whose both ends are fixed to the attachment 34
7 and a large number of separation rollers 36 rotatably arranged at intervals in the axial direction of the fixed shaft 37. A plurality of printing plates P are placed on the plurality of separation rollers 35. At this time, as shown in FIG. 4, the lower side of the printing plate P is supported at its lower end by a locking member 41 fixed to the contact plate 40, and at its lower surface by the separation spring 42.

Of the separating rollers 35, the separating roller 35 arranged at the upper end of the roller chain 28 in the state shown in FIG.
a and the separating roller 35b arranged at the lower end have contact members 59 (only the separating roller 35b side is shown in FIG. 11). Further, as shown in FIG. 7, a detection fitting 34a is attached to one end of the fixed shaft 37 provided with the contact member 59. Further, an origin sensor 38 for detecting the detection fitting 34a is arranged on the side frame 19 side. The origin sensor 38 is a light emitting and receiving type optical sensor, and detects that one of the separation rollers 35a and 35b is at the origin position by shielding the detection fitting 34a.

A pair of holding / lowering mechanisms 14 are provided between the side frames 19 at intervals in the width direction. As shown in FIGS. 5, 10 and 11, each holding / lowering mechanism 14 is composed of a vacuum suction section 16 and a lifting mechanism 17. The vacuum suction unit 16 has a suction cylinder 16a and a suction cup 16b arranged at the upper end of the suction cylinder 16a. As is clear from FIG. 5, the suction cup 16b has a printing plate P.
Faces the lower surface of the lowest one, and in the state of FIG. 5, it is arranged at a constant distance from the surface. The suction cylinder 16a of the vacuum suction unit 16 includes a vacuum pump 71 (see FIG.
3) is connected.

In the lifting mechanism 17, a bracket 53 for supporting the pin 52 is fixed to a stay 51 having a U-shaped cross section. A block 54 is slidably fitted to the pin 52. The suction cylinder 16 is fixed to the block 54 via an engaging member 16c. Further, one end of a cam shaft 55 is rotatably supported by the stay 51. A first cam 57 that engages with an engagement pin 56 provided on the block 54 is fixed to the cam shaft 55. Further, the camshaft 55 has a second cam 60
Is provided. The second cam 60 is used for the separation roller 3
It is arranged at a position where it can be opposed to the contact member 59 provided at 5a and 35b. The second cam 60 extends in the left-right direction in FIG. 5 and is biased in the left direction in FIG. 5 by a tension spring 62 whose one end is stopped by the stay 51.

The support mechanism 13 includes a plurality of plate receiving rollers 44.
have. The plate receiving roller 44 is provided on both sides of the frame 19
It is bridged in between. The plurality of plate receiving rollers has a shaft 44.
a and a plate receiving roller 44b rotatably provided on the shaft 44a at equal intervals in the axial direction. These plate receiving rollers 44 are arranged between the upper separation roller 35 and the lower separation roller 35 along the inclination of the plate guide unit 10.

The rotation of the plate receiving roller 44 and the plate guide 1
With the inclination arrangement of 0, in the direction of the plate transport unit 11, that is,
Since the plate P is about to move in the transport direction, the plate P is reliably transported from the plate receiving roller 44. The plate transport unit 11 is disposed between the plate guide unit 10 and the plate insertion port 4, and holds the plate P separated and guided by the plate guide unit 10 as shown in FIG. The discharge roller pair 63 is configured to be transported, and five guide rollers 64a to 64e are configured to guide the printing plate P transported by the roller pair 63 to the feed tray 4a of the developing machine 1. Guide roller 6
4a to 64e bend the printing plate P conveyed by the discharge roller pair 63 and guide the printing plate P so as to draw an arc having a radius of 125 mm. A discharge sensor 67 (FIG. 5) for detecting that the plate P is guided by the discharge roller pair 63 is arranged above the discharge roller pair 63.

As shown in FIG. 8, a gear 66 meshing with each other is arranged at one end of the discharge roller pair 63. The lower gear 66 meshes with the gear 69. Gear 69
Is fixed to one end of the rotary shaft 68, as shown in FIG. A gear 69a is fixed to the other end of the rotary shaft 68. The gear 69a meshes with the pinion 30 via the gear 69b. As a result, the driving force of the drive motor 31 is applied to the discharge roller pair 63 by the pinion 30, the gear 69b, and
It is transmitted via 69a, 69, 66.

The plate supply device 2 has a structure as shown in FIG.
It has a control unit 70 including a microcomputer including a CPU, a ROM, a RAM and the like. A vacuum pump 71, a buzzer 72 that issues an alarm when an abnormality occurs, and a drive motor 31 are connected to the output side of the control unit 70. A start button 21, a return button 22, a manual insertion button 23, an origin sensor 38, a push switch 43, and a discharge sensor 67 arranged on the switch panel 20 are connected to the input side of the control unit 70. Other input / output devices are also connected to the control unit 70.

Next, the operation of the above embodiment will be described with reference to the control flowcharts shown in FIGS. In step S1 of FIG. 14, initial settings are made.
At the time of this initial setting, the separation roller 35 is arranged at the origin position. At this origin position, the separation roller 35b is
As shown in FIG. 5, it is arranged slightly away from the second cam 60. Furthermore, the contents of the memory are initialized.

In step S2, the pressing of the start button 21 is awaited. When the start button 21 is pressed,
In step S3, it is determined whether the push switch 43 is on. When the push switch 43 is not turned on, it means that the printing plate P is not placed on the separation roller 35. Therefore, the process shifts to step S4 and the buzzer 72 is sounded to notify the operator of the fact, Return to S3.

If the push switch 43 is turned on, the process proceeds from step S3 to step S5. In step S5, it is determined whether or not the origin sensor 38 is turned on. If the origin sensor 38 is not turned on, the process proceeds to step S6. If the origin sensor 38 is not turned on, the separation roller 35 is not located at the origin position. Therefore, in step S6, the buzzer 72 sounds to indicate that. In step S7, it waits until the return button 22 is turned on. When the return button 22 is turned on, the process proceeds to step S8 and the drive motor 31 is rotated. In step S9, it waits for the origin sensor 38 to detect the detection fitting 34a. When the origin sensor 38 is turned on, the drive motor 31 is stopped in step S10.
By the above operation, the separation roller 35 is arranged at the origin position.

In step S11, the vacuum pump 71 is turned on. When the vacuum pump 71 is turned on, a negative pressure is generated in the suction cup 16b. Then, in step S12, the drive motor 31 is operated. In step S13, the origin sensor 38
Waiting for the motor to turn on, and in step S14
Turn off 1. As a result, the drive motor 31 stops when the separation roller 35 has rotated 1/2 turn and is again located at the original position.

The operation in steps S12 to S14 will be described in detail. When the contact member 59 contacts the second cam 60,
As shown in FIG. 16, the cam shaft 55 rotates counterclockwise in the figure. As a result, the tip of the second cam 57 moves upward, and the block 54 and the vacuum suction unit 16 move upward. As a result, the suction cup 16b is adsorbed to the lower surface of the lowermost one of the plurality of printing plates P.

Further, when the circulation of the separation roller 35 advances,
The second cam 60 is disengaged from the contact member 59, and the tension spring 6
The cam shaft 55 is rotated clockwise by the urging force of 2. As a result, the block 54 and the vacuum suction unit 16 move downward as shown in FIG. At this time, one end of the lowest printing plate P moves downward together with the vacuum suction unit 16.
When the lowest printing plate P separates from another printing plate, the separation spring 42 separates the printing plate P, so that the two printing plates are reliably prevented.

When the separation roller 35 continues to rotate from the state shown in FIG. 17, the separation roller 35 advances between the lowermost plate P pulled down and another plate. As a result, as shown in FIG.
When rotated, the lowest printing plate P is completely separated from the other printing plates and placed on the plate receiving roller 44b of the plate receiving roller 44.

In step S15, the suction operation is canceled. When the suction by the vacuum suction unit 16 is released, the printing plate P placed on the plate receiving roller 44 moves downward (to the right in FIG. 18) by the rotation of the plate receiving roller 44b, and the lower end thereof is a pair of discharge rollers. The nip position of 63 is reached. Step S16
Then, the drive motor 31 is turned on. As a result, the discharge roller pair 63 rotates, and the plate P has five guide rollers 64a to 64a.
It is conveyed to the 64e side. In step S17, it is determined whether the discharge sensor 67 is turned on, and in step S18, it is determined whether the discharge sensor 67 is turned off. That is, in steps S17 and S18, it is determined whether the plate P has been completely discharged from the discharge roller pair 63.

In step S19, the drive motor 31 is turned off. In step S20, it is determined whether or not the manual insertion button 23 has been operated during the automatic transport operation. The manual insertion button 23 is a button that is pressed not by the device 2 but by manually inserting the printing plates P one by one from the feed tray 4a. When it is determined in step S20 that the manual insertion button 23 has been operated, the process returns to step S2.

If the manual insertion button 23 has not been operated, the process proceeds to step S21. In step S21, it is determined whether or not the push switch 43 is turned on. If the push switch 43 is on,
Since the printing plate P still remains on the separation roller 35, the process returns to step S5, and if the push switch 43 that repeats a series of operations is not turned on, it is determined that all the printing plates have been supplied, and the step Return to S2.

In the plate supply device 2, the plate guide unit 10
The lowest one of the plurality of printing plates P placed on is sent to the developing machine 1 for processing. Therefore, even when an additional plate group is placed on the plate group previously placed, the plate placed earlier is processed. In this way, in order to ensure that the one placed first is processed first,
The plate is not left on the plate supply device 2 for a long time.

Further, in this embodiment, since the vacuum suction unit 16 is moved up and down by the contact members 59 provided on the rotating separating rollers 35a and 35b, it is expensive to move the vacuum suction unit 16 up and down. Eliminates the need for complicated air cylinders and pneumatic devices for controlling the air cylinders. This simplifies the structure and reduces the overall cost.

[0040]

As described above, in the photosensitive material supplying apparatus according to the first aspect of the invention, among the photosensitive materials obliquely mounted on the mounting portion, the lowest one which is mounted first remains. Then, the lowest photosensitive material thus separated is conveyed to the photosensitive material supply port of the automatic developing device by the conveying means. As a result, among the photosensitive materials of the plurality of sheets, since the photosensitive material placed first is sequentially conveyed and developed, the difference in the standing time between the photosensitive materials to be processed is reduced, and the photosensitive material of the plurality of sheets is exposed. A homogeneous and good development can be performed on the material.

In the photosensitive material supplying apparatus according to the second aspect, the lowering and holding means holds and lowers the lower end of the lowermost photosensitive material to start separation, and the photosensitive material lowered by the advancing means is completely removed. Since the separation is performed, a series of separation operations from the start to the completion of the separation can be reliably performed. In the photosensitive material supply device according to the third aspect, a plurality of entrance members bridged between a pair of inclined circling members can be made to enter the entire upper surface side of the lowest photosensitive material by a drive mechanism, and the separating members can be separated. The operation can be performed more completely and reliably.

In the photosensitive material supplying apparatus according to the fourth aspect, the lowermost photosensitive material tends to move in the conveying direction due to the inclined arrangement of the supporting portions and the rotation of the rotary member supporting the lowermost photosensitive material. It is possible to reliably carry the lowest photosensitive material from the supporting portion. In the photosensitive material supply device according to the fifth aspect, since the lowermost photosensitive material is adsorbed by the vacuum adsorbing means that moves up and down by the elevating mechanism, the photosensitive material is separated from the rest of the photosensitive material. This has the effect of facilitating the entrance of the lowest photosensitive material into the upper surface side of the entrance means.

In the photosensitive material supplying apparatus according to the sixth aspect, since the vacuum suction means is moved up and down by the mechanism in which the contact member is brought into contact with the cam mechanism, no complicated mechanism is required and the structure is simple. There is an effect.

[Brief description of drawings]

FIG. 1 is a schematic side view of an automatic developing system that employs an embodiment of the present invention.

FIG. 2 is a schematic vertical sectional view of the plate supply device.

FIG. 3 is a view on arrow III in FIG.

FIG. 4 is a perspective partial view of a contact plate.

FIG. 5 is a partial side view of a main body frame and a plate guide portion.

FIG. 6 is a schematic view of a sprocket portion thereof.

7 is a partial sectional view taken along line VII-VII of FIG.

FIG. 8 is a side view showing a drive system of a drive sprocket and a pair of discharge rollers.

FIG. 9 is a plan view thereof.

FIG. 10 is a plan view of a holding and lowering mechanism.

11 is a sectional view taken along line XI-XI of FIG.

FIG. 12 is a schematic side view of a transport unit.

FIG. 13 is a block diagram of a control system of the plate supply device.

FIG. 14 is a control flowchart of the control unit.

FIG. 15 is a control flowchart of the control unit.

FIG. 16 is a view showing a state of the operation of the holding and lowering mechanism.

FIG. 17 is a diagram showing another state of the operation of the holding and lowering mechanism.

FIG. 18 is a view showing still another state of the operation of the holding lowering mechanism.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Developing machine 2 Plate supply device 4 Plate insertion port 10 Plate guide part 11 Plate conveying part 12 Separation mechanism 13 Support mechanism 14 Holding lowering mechanism 15 Entry mechanism 35 Separation roller

Claims (6)

[Claims] 1. A photosensitive material supply device for supplying sheet-shaped photosensitive material one by one from above to a photosensitive material supply port of an automatic developing device, wherein the lowest one of a plurality of photosensitive materials remains. And a supporting portion for supporting the lowest photosensitive material separated by the separating means, and for mounting a plurality of photosensitive materials in a tilted manner above the automatic developing device. Transporting means for transporting the lowermost photosensitive material supported by the supporting portion to the photosensitive material supply port, which is disposed between the mounting portion and the lower end of the mounting portion and the photosensitive material supply port. And a photosensitive material supply device including 2. The holding and lowering means for holding and lowering the lower end of the lowest photosensitive material placed on the placing portion, and the photosensitive material lowered by the holding and lowering means. 2. The photosensitive material supplying apparatus according to claim 1, further comprising: an advancing means for advancing from the lower end side to the upper surface side of the lowermost photosensitive material to separate the lowermost photosensitive material from the rest. 3. The advancing means includes a pair of inclined revolving members, a plurality of advancing members bridged between the pair of revolving members, and a drive mechanism for revolving the revolving members. The photosensitive material supply device according to claim 2. 4. The photosensitive material according to claim 3, wherein the supporting portion has a rotating member that is arranged to be inclined along the pair of circulating members and supports the lowest photosensitive material. Supply device. 5. The holding / lowering means includes a vacuum suction means for sucking the lowest photosensitive material, and an elevating mechanism for elevating / lowering the vacuum suction means. Photosensitive material supply device. 6. The elevating mechanism has a cam mechanism connected to the vacuum suction means, and an abutting member provided on the advancing member and abutting on the cam mechanism. Photosensitive material supply device.