JPH0719251U - Photosensitive material feeder - Google Patents

Abstract

(57) [Summary] [Purpose] To ensure that sensitive materials can be separated and supplied with a relatively simple structure. [Structure] The plate supply device 2 is a device for supplying the photosensitive material one by one from above the plate insertion port 4 of the automatic developing device 1.
A plate mounting unit 14, a plate transport unit 12, a vacuum suction unit 11, and a plate guide unit 10 are provided. The plate mounting portion 14 mounts one or a plurality of plates inclining above the automatic developing device 1. The plate conveying unit 12 is arranged between the lower end of the plate placing unit 14 and the plate insertion port 4, and conveys the plate of the plate placing unit 14 to the plate insertion port 4. The vacuum suction unit 11 sucks and raises the lower end of the printing plate placed on the top of the printing plate placing unit 14. The plate guide unit 10 enters the lower surface of the plate from the lower end side of the plate lifted by the vacuum suction unit 11 to separate the plate, and also moves down after the vacuum suction unit 11 releases the plate. To the plate transport unit 12.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a photosensitive material supply device, and more particularly to a photosensitive material supply device that supplies photosensitive material one by one from above to a photosensitive material supply port of an automatic developing device.

[0002]

[Prior art]

 A light-sensitive material (hereinafter, referred to as a light-sensitive material) such as a film or a printing plate on which an image is exposed is supplied to an automatic developing device (hereinafter, referred to as a developing machine) and subjected to a development process. 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 transferred to each processing tank and subjected to development processing and water washing processing. When supplying a large number of photosensitive materials to this developing machine, a photosensitive material supply device is used.

As this type of sensitive material supplying device, the one disclosed in Japanese Utility Model Laid-Open No. 59-84543 is known. The photosensitive material supplying device is provided above the developing machine, and is obliquely arranged on the light shielding cover of the developing machine. This sensitive material supply device includes a supply table on which the sensitive material is placed in an inclined manner, a vacuum suction head for suctioning and transporting the sensitive material on the supply table, and a two-step picking up of the sensitive material transported by the vacuum suction head. A peeling roller for preventing the above-mentioned trouble, and a sensitive material conveying section for conveying the sensitive material toward the photosensitive material intake port of the developing machine, which includes a pair of feeding rollers arranged below the peeling roller. .

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

[0005]

[Problems to be solved by the device]

 In the above-mentioned conventional configuration, since the peeling roller only prevents the two sensitive materials from being picked up, it is difficult to reliably separate the sensitive material. In particular, when supplying a thin metal plate such as a printing plate (hereinafter referred to as a printing plate) with the configuration of the above apparatus, it is difficult to separate the thin metal plate with a peeling roller, so that It is difficult to separate the sensitive material. In addition, since the vacuum suction head conveys the sensitive material to be clamped by the feeding roller, it is difficult to clamp the tip of the sensitive material by the feeding roller, and the supply operation to the developing machine is uncertain. become.

An object of the present invention is to make it possible to reliably separate the photosensitive material regardless of the type of the photosensitive material and to supply it to the developing machine side with a relatively simple structure.

[0007]

[Means for Solving the Problems]

 A sensitive material feeding device according to the present invention is a device for feeding sensitive material one by one from above to a sensitive material feeding port of an automatic developing device, and comprises a sensitive material placing portion, a conveying means, a holding and raising means, and a guiding means. Is equipped with. The photosensitive material mounting portion mounts the photosensitive material while being inclined above the automatic developing device. The conveying means is arranged between the lower end of the photosensitive material mounting portion and the photosensitive material supply port, and conveys the photosensitive material of the photosensitive material mounting portion to the photosensitive material supply port. The holding and raising means holds and raises one end of the sensitive material placed on the top of the sensitive material placing portion. The guiding means can enter the lower surface of the sensitive material from one end side of the sensitive material raised by the holding and raising means, and guides the raised sensitive material to the conveying means side.

[0008]

[Action]

 In the sensitive material supply device according to the present invention, when the sensitive material is placed on the sensitive material placing portion, the holding and raising means holds and raises one end of the sensitive material placed on the uppermost position. Subsequently, the guide means enters the lower surface of the sensitive material from one end side of the raised sensitive material to separate the uppermost sensitive material from other sensitive materials. When the approach is completed, the holding and raising means releases the holding of the photosensitive material. Then, the guiding means guides the raised sensitive material to the conveying means side. The sensitive material guided by the transport means is transported to the sensitive material supply port by the transport means.

Here, since the guide means is inserted into the lower surface of the sensitive material held by the holding and raising means to guide the sensitive material to the conveying means side, the sensitive material is reliably separated regardless of the type of the sensitive material. It can be separated and guided to the transport means. Therefore, the sensitive material can be reliably separated and supplied with a relatively simple structure.

[0010]

【Example】

 In FIG. 1, an automatic developing system adopting an embodiment of the present invention includes a developing machine 1, a plate feeding device 2 obliquely arranged above the developing machine 1, and supplying a plate to the developing machine 1. It has a printing plate stocker 3 arranged behind the developing machine 1 and accumulating developed printing plates.

The developing machine 1 is for developing and drying a printing plate, and inside thereof, 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 plate into the inside of the developing machine 1 is arranged facing 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 facing the plate discharge port 6. Upper covers 7a and 7b are provided on the upper part of the developing machine 1. Maintenance work inside the developing machine 1 is performed by removing the upper covers 7a and 7b.

As shown in FIGS. 1 and 2, the plate supply device 2 includes mounting frames 8 arranged on both sides of the plate insertion port 4 of the developing machine 1 and a supporting frame 8 which is supported by the mounting frames 8. 1, a main body frame 9 obliquely arranged above the main body frame 1, a plate guide portion 10 provided in the main body frame 9, a vacuum suction portion 11 supported at a lower end of the main body frame 9, the main body frame 9 and a developing machine. 1 and the plate transporting section 12 disposed between the two.

The mounting frame 8 has a pair of base members 8a extending along both sides at the lower part of the developing machine 1, and a vertical member 8b extending upward from the base member 8a and fastened to the developing machine 1, and a vertical member. It is composed of a diagonal member 8c extending upward and rearward at an angle of 45 ° from the tip of the member 8b. The body frame 9 is attached to the diagonal member 8c. As shown in FIG. 2, the main body frame 9 has side frames 13 arranged on both sides and a plate mounting portion 14 arranged between the side frames 13. As shown in FIG. 3, the plate mounting portion 14 has a mounting surface 15 on which the plate P is mounted, and a contact surface 16 extending upward from the lower end of the mounting surface 15. . Two separation springs 17 are arranged on the contact surface 16 to prevent the printing plate P from being picked up twice. The separation spring 17 is, for example, a metal coil spring having a diameter of about 8 mm. By bending the contact side end of the contact part of the plate P downward during the suction operation by the vacuum suction part 11, When two sheets are taken, the edges are shifted and ironed, and the lower plate is separated. Further, on the mounting surface 15, for the purpose of preventing damage to the printing plate P and the like, convex portions 18 which are long in the left-right direction in FIG. 3 are formed at intervals in the direction orthogonal to the paper surface. Further, the mounting surface 15 is provided with a first limit switch 19 for detecting that the plate P 1 is mounted on the mounting surface 15.

A switch panel 20 is provided on the left side surface of the side frame 13 in FIG. On the switch panel 20, a start switch 21, a return button 22, and a manual insertion button 23 are arranged. The start switch 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. An LED is attached to the return button 22 and is turned on when a return operation is necessary to notify the operator of the fact. The manual insertion button 23 is used when the printing plate is directly inserted into the printing plate insertion port 4 without using the printing plate supply device 2 while the printing plate is being supplied.

As shown in FIG. 3, the plate guide unit 10 includes a drive shaft 25 arranged below the contact surface 16 (right side in FIG. 3) and both side frames 13 at both ends of the drive shaft 25. A pair of drive sprockets 26 disposed inside, a pair of driven sprockets 27 disposed at the upper part of the both side frames 13, and a pair of roller chains 28 spanning the sprockets 26, 27. ing. A gear 29 is fixed to one end of the drive shaft 25, as shown in FIGS. 6 and 7. 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. 4, the driven sprocket 27 is rotatably supported by a driven shaft 32 that is arranged so as to project inward from the side frame 13.

As shown in FIG. 5, the roller chain 28 is supported by a pair of rails 33, which are arranged in the upper and lower parts of the frame 13 on both sides with a space therebetween. Five sets of L-shaped attachments 34 are attached to the roller chain 28 at intervals. Separation rollers 35 are attached to the inner facing attachments 34. The separation roller 35 is composed of a fixed shaft 37 having both ends fixed to the attachment 34, and a large number of separation rollers 36 rotatably arranged at intervals in the axial direction of the fixed shaft 37. These five sets of separation rollers 35 are provided between a standby position, which is substantially arranged below the mounting surface 15, and a guide position, which is entirely arranged above the mounting surface 15, as shown by the solid line in FIG. Moving. At the guide position, the printing plate P placed on the separation roller 35 travels on the separation roller 35 by its own weight and is guided to the transport unit 12.

A detection fitting 34a is attached to the outer side of the attachment 34 to which the leading separation roller 35 on the lowermost end side is attached. Then, on the inner surface of the side frame 13, a lower limit sensor 38 and an upper limit sensor 39 (FIGS. 4 and 5) for detecting the detection fitting 34a are arranged at intervals. These sensors 38 and 39 are light emitting and receiving type optical sensors in which a light projecting element and a light receiving element are opposed to each other with a gap interposed therebetween. The lower limit sensor 38 detects the lower limit of the leading separation roller 35 to which the detection fitting 34a is attached, and the upper limit sensor 39 detects the upper limit. The detection position of the lower limit sensor 39 is the standby position, and the detection position of the upper limit sensor 39 is the proposed position.

As shown in FIGS. 8 and 9, the vacuum suction portion 11 includes three suction cylinders 40 arranged at intervals in a direction intersecting with the guide direction of the printing plate P, and a tip of the suction cylinder 40. And a suction cup 41 arranged at. The suction cylinders 40 on both sides are arranged so that the upper part is inclined inward by an angle θ so that the printing plate P 1 can be easily separated. The suction cylinder 40 is attached to a support member 42 arranged in a direction crossing the guide direction above the lower end of the mounting surface 15. Both ends of the support member 42 are attached to the swing bracket 44. The swing bracket 44 is rotatably supported by a fixed bracket 43 attached to the side frame 13. A spring 45 is arranged in an extended state between the swing bracket 44 and the fixed bracket 43, and the swing motion of the swing bracket 44 is indicated by a solid line in FIG. The retracted posture shown can be taken. When the suction posture or the retracted posture is adopted, the operator manually turns one of the suction cylinders 40. By disposing the suction cylinder 40 in the retracted posture, the plate P can be easily placed on the placing surface 15.

As shown in FIG. 10, the suction cylinder 40 has a cylinder body 50, a piston 51 that reciprocates in the cylinder body 50, and a retraction spring 52 that urges the piston 51 in the retreat direction. is doing. The piston 51 has a piston head 53 that fits in the cylinder body 50 and reciprocates in the cylinder body 50, and a piston rod 54 that projects downward from the piston head 53. A suction cup 41 is attached to the tip of the piston rod 54. The piston head 53 divides the space inside the cylinder body 50 into a first vacuum chamber 55 on the piston rod 54 side and a second vacuum chamber 56 on the opposite side. The piston rod 54 has a tubular structure, and a communication passage 57 is formed inside. One end of the communication passage 57 penetrates the piston head 53 to open to the second vacuum chamber 56, and the other end opens to the suction cup 41. Further, below the piston head 53 of the piston rod 54, a small hole 58 that connects the communication passage 57 and the first vacuum chamber 55 is formed. A connection port 59 is formed at the bottom of the cylinder body 50.

A solenoid valve 60 is connected to the connection port 59, as shown in FIG. The solenoid valve 60 is a single solenoid, 2-position, 3-port type, the output port is connected to the connection port 59, one input port is connected to the vacuum pump 61, and the other input port is open to the atmosphere. Has been done. When the solenoid valve 60 is off, the connection port 59 is open to the atmosphere, and when it is on, the connection port 59 is connected to the vacuum pump 61. The vacuum pump 61 is provided with a vacuum switch 62. The vacuum switch 62 is adapted to be turned on by the negative pressure reached when the suction plate 41 attracts the printing plate P and the piston 51 reaches the highest position.

As shown in FIG. 12, the plate transport unit 12 is transported from the discharge roller pair 65 and the roller pair 65, which sandwich and transport the plate P separated and drafted by the plate guide unit 10. The guide plate 66 is composed of five guide rollers 66a to 66e for guiding the printing plate P to the feed tray 4a of the developing machine 1. The guide rollers 66a to 66e bend the printing plate P conveyed by the discharge roller pair 65 downward so that the printing plate P can draw an arc having a radius of 125 mm. A second limit switch 46 for detecting that the printing plate P is guided to the discharge roller pair 65 is arranged upstream of the discharge roller pair 65.

As shown in FIG. 6, a gear 66 meshing with each other is arranged at one end of the discharge roller pair 65. The lower gear 66 meshes with the gear 67. The gear 67 is fixed to one end of a rotary shaft 68 rotatably supported by the side frame 13. 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 transmitted to the discharge roller pair 65 via the pinion 30 and the gears 69b, 69a, 67, 66.

The plate supply device 2 has a control unit 70 including a microcomputer including a CPU, a ROM, a RAM, etc., as shown in FIG. A vacuum pump 61, a solenoid valve 60, a speed controller 71, and a buzzer 72 that issues an alarm when an abnormality occurs are connected to the output side of the control unit 70. On the input side of the control unit 70, a start switch 21, a return button 22, a manual insertion button 23, an upper limit sensor 39, a lower limit sensor 38, a first limit switch 19, a second limit switch arranged on the switch panel 20. 46, the timer 73, and the vacuum switch 62 are connected. The speed controller 71 switches the rotation speed of the motor 31 between high speed and low speed. The motor 31 is connected to the speed controller 71. The timer 73 is used to measure a predetermined time, and measures various predetermined times according to a command from the control unit 70.

Next, the control operation of the control unit 70 will be described with reference to the control flowcharts shown in FIGS. When the device is powered on, initialization is performed in step S1 of FIG. At the time of this initial setting, the lowermost separation roller 35 is arranged at the detection position of the lower limit sensor 38. Further, the contents of the memory are initialized. In step S2, the operation of the start switch 21 is awaited. The operator pushes the start switch 21 when the suction cylinder 40 is in the retracted position and the printing plate P is placed on the mounting surface 15 and then in the suction position. When the start switch 21 is turned on, the process proceeds to step S3. In step S3, it is determined whether or not the first limit switch 19 is turned on. When the first limit switch 19 is not turned on, the process proceeds to step S4. If the first limit switch 19 is not turned on, the printing plate P is not yet placed on the placing surface 15, so in step S4, the buzzer 72 is turned on to inform the operator of that fact. Return to S3.

When the first limit switch 19 is on, the process moves from step S3 to step S5. In step S5, it is determined whether or not the lower limit sensor 38 is turned on. If the lower limit sensor 38 is not turned on, the process proceeds to step S6. If the lower limit sensor 38 is not turned on, it means that the separation roller 35 is not in the standby position. Therefore, in step S6, the buzzer 72 is sounded and the return button 22 is pressed to indicate that fact. The LED provided on the LED is turned on to prompt the operator to operate the return button 22. In step S7, the operation of the return button 22 is waited for. When the return button 22 is operated, the process proceeds to step S8. In step S8, the motor 31 is rotated in the reverse direction. In step S9, it waits until the lower limit sensor 38 is turned on by the detection metal fitting 34a arranged on the lowermost separation roller 35. When the lower limit sensor 38 is turned on, the process proceeds to step S10. If the lower limit sensor 38 is turned on, it means that the separation roller 35 is located at the standby position, so the motor 31 is stopped in step S10.

On the other hand, if it is determined in step S5 that the lower limit sensor 38 is already turned on, the process proceeds to step S11. In step S11, the solenoid valve 60 is turned on. As a result, the connection port 59 of the suction cylinder 40 and the vacuum pump 61 are connected. In step S12, the vacuum pump 61 is turned on. When the vacuum pump 61 is turned on, a negative pressure is supplied to the first vacuum chamber 55 in FIG. 10, and the pressure in the first vacuum chamber 55 is lower than the pressure in the second vacuum chamber 56. Then, the piston 51 descends against the biasing force of the retracting spring 52. At this time, since air flows from the suction cup 41 and the second vacuum chamber 56 into the first vacuum chamber 55 through the small holes 58, the pressure in the first vacuum chamber 55 is hard to drop, but the diameter of the small holes 58 is small. Since it is sufficiently small, the pressure in the first vacuum chamber 55 gradually decreases. Further, since the second true empty chamber 56 is open to the atmosphere via the communication passage 57 and the suction cup 41, the pressure in the second true empty chamber 56 is substantially equal to the atmospheric pressure. Then, when the pressure in the first vacuum chamber 55 falls to a negative pressure sufficient to lower the piston 51, the piston 51 lowers against the biasing force of the retracting spring 52.

When the piston 51 descends and the suction cup 41 adsorbs one end of the printing plate P, the air flowing into the second vacuum chamber 56 via the suction cup 41 and the communication passage 57 is blocked. Then, a negative pressure is supplied to the second vacuum chamber 56 through the small hole 58, and the pressure of the second vacuum chamber 56 gradually decreases to the same pressure as that of the first vacuum chamber 55. At this time, since the pressure acting area above and below the piston head 53 is larger on the second vacuum chamber 56 side by the area of the piston rod 54, the negative pressure pulling the piston head 53 is larger on the second vacuum chamber 56 side. A force pulling on the second vacuum chamber 56 side acts on 53. Further, the urging force of the retracting spring 52 acts, so that the piston 51 rises. When the piston 51 rises most, the degree of vacuum in the vacuum pump 61 becomes maximum and the vacuum switch 62 turns on.

In step S 13 of FIG. 15, the time required for the vacuum switch 62 to turn on after the vacuum pump 61 turns on, that is, the plate P is adsorbed by the adsorption cylinder 40, and the piston 51 moves up most. Wait for the elapse of a sufficient time T1. During suction by the suction cylinder 40, the abutment side end of the printing plate P is squeezed downward by the operation of the separation spring 17 to reliably prevent double printing of the printing plate. It When the time T 1 has elapsed, the process proceeds to step S14. In step S14, it is determined whether or not the vacuum switch 62 is turned on. If the vacuum switch 62 is not turned on, it means that the printing plate P could not be adsorbed for some reason. Therefore, the process proceeds to step S15, and the buzzer 72 is sounded to complete the process.

When the vacuum switch 62 is turned on, the process proceeds from step S14 to step S16. In step S16, since one end of the printing plate P has been normally adsorbed, the drive motor 31 is normally rotated and the drive sprocket 26 is rotated in the direction of arrow A in FIG. As a result, the separation roller 35 enters the lower surface of the adsorbed printing plate P from the standby position and separates the adsorbed printing plate P and the printing plate P on the mounting surface 15. In step S17, it waits for the leading separation roller 35 to reach the upper limit sensor 39. When the leading separation roller 35 reaches the upper limit sensor 39 and the upper limit sensor 39 is turned on, the process proceeds to step S18. In step S18, the drive motor 31 is stopped. As a result, all of the five separation rollers 35, including the leading separation roller 35, are arranged at the guide position that advances to the lower surface of the adsorbed printing plate P. Then, these separation rollers 35 are arranged between the non-adsorbed printing plate placed on the placing surface 15 and the separation is surely performed.

The vacuum pump 61 is turned off in step S19, and the solenoid valve 60 is turned off in step S20. As a result, the connection port 59 is opened to the atmosphere, the first vacuum chamber 55 and the communication passage 57 are also opened to the atmosphere, and the suction of the plate P by the suction cup 41 is released. At this time, since the piston 51 is urged by the retracting spring 52, the piston 51 is still moving upward. As a result, the suction of the printing plate P is released, and the printing plate P falls on the separation roller 35. Then, it slides down on the separating roller 35 arranged at an inclination by its own weight, and is guided to and abuts on the nip position of the discharge roller pair 65 of the plate transporting section 12.

In step S21, it waits for the second limit switch 46 to be turned on. When the printing plate P 2 slides down on the separation roller 35 and reaches the nip position of the discharge roller pair 65, the second limit switch 46 arranged in the middle thereof is turned on. When the second limit switch 46 is turned on, the process proceeds to step S22. In step S22, the drive motor 31 is reversed. When the drive motor 31 is rotated in the reverse direction, the drive sprocket 26 is rotated in the direction of arrow B in FIG. 3, the separation roller 35 is moved from the guide position to the standby position, and the pinion 30, the gear 69b, the gear 69a, the gear 67, and the gear 67 are rotated. The discharge roller pair 65 is rotated in the discharge direction indicated by the arrow in FIG. Then, the plate P that is in contact with the nipping position is nipped, and the plate P is conveyed in the direction of the guide rollers 66a to 66e. At the same time, the separation roller 35 described above moves from the guide position toward the standby position to promote the transport of the printing plate P. The transport speed of the printing plate P by the discharge roller pair 65 is set to match the transport speed of the inlet roller pair 5 of the developing machine 1.

In step S23, the rear end of the printing plate P passes over the second limit switch 46 and waits for the second limit switch 46 to turn off. When the second limit switch 46 is turned off, the process proceeds to step S24. In step S24, the elapse of time T2 is awaited. This time T2 is sufficient for the trailing edge of the plate P to pass the discharge roller pair 65 after the second limit switch 46 is turned off. By the time the trailing edge of the printing plate P passes through the discharge roller pair 65, the leading edge of the printing plate P is normally bitten by the inlet roller pair 5 of the developing machine 1, and the printing plate P is Is transported inward.

When the time T2 has elapsed, the process proceeds from step S24 to step S25, and the speed controller 71 is set to high speed. As a result, the drive motor 31 is driven at high speed to move the separation roller 35 at high speed toward the standby position. At this time, since the printing plate P has already been removed from the discharge roller pair 65, there is no problem in conveying the printing plate P even if the drive motor 31 is driven at high speed. In step S26, the separation roller 35 waits until it reaches the standby position. When the lower limit sensor 38 is turned on and the separation roller 35 reaches the standby position, the process proceeds to step S27. In step S27, the motor 31 is stopped. As a result, the leading separation roller 35 is arranged at the standby position, and all the other separation rollers 35 are arranged on the back surface side of the mounting surface 15. In step S28, the speed controller 71 is set to the original low speed. This is to set the speed at the time of the next separation roller entry to a low speed.

In step S29, it is determined whether or not the manual insertion button 23 has been operated. As described above, the manual insertion button 23 is a button that is pressed to insert the printing plates P one by one from the feed tray 4a, not the device 2, while the printing plate supply device 2 is operating. . If the manual insertion button 23 has not been operated, the process proceeds to step S30. In step S31, it is determined again whether or not the first limit switch 19 is turned on. When the first limit switch 19 is turned on, the printing plate P is still placed on the placing surface 15, so the process proceeds to step S5 and a series of operations is repeated. If the first limit switch 19 is not turned on, it is determined that all the printing plates have been supplied, and the process ends. The process is also terminated when the manual insertion button 23 is operated in step S29.

Here, since the frame body 9 is disposed above the developing machine 1 by the mounting frame 8 separately from the developing machine 1 at an angle of 45 degrees, the installation area is small and the image forming machine 1 Easy to maintain. Further, after adsorbing the printing plate P, the separating roller 35 is made to enter the lower surface of the adsorbing printing plate P, the printing plate P is lowered onto the separating roller 35, and the lowered printing plate P slides down on the separating roller 35 by its own weight. Since only the guide plate is guided, the mechanism and control for guiding the plate P to the plate transport unit 12 are simple.

[Other Embodiments] (a) The inclination angle of the guide portion 10 may be such that the printing plate P slides down on the inclined conveyance path constituted by the separation roller 35 under its own weight. And 30 ° or more. However, when the sliding plate P comes into contact with the discharge roller pair 65, 65 at a high speed, the leading end of the plate P is scratched or bent. According to experiments, such a problem does not occur if the inclination angle is 70 ° or less. It is more preferable that the inclination angle of the mounting portion or the guide portion is 45 ° to 60 ° because a sufficient working space can be secured above the developing machine 1. (B) In the plate supply device 2, the mounting frame 8 is fastened to the developing machine 1, but the mounting frame 8 may be movably arranged by casters or the like. In this case, maintenance of the developing machine 1 is easier.

[0037]

[Effect of device]

 In the photosensitive material supply device according to the present invention, the photosensitive material is reliably separated and guided by the holding and raising means and the guiding means. Therefore, the photosensitive material is securely separated one by one with a relatively simple structure, and the automatic developing machine side is provided. Can be supplied to.

[Brief description of drawings]

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

FIG. 2 is a front view thereof.

FIG. 3 is a side view of a main body frame and a plate guide portion.

FIG. 4 is an enlarged front view of the main part.

FIG. 5 is an enlarged bottom view of the main part.

FIG. 6 is a side view showing a drive system of a drive sprocket and a pair of discharge rollers.

FIG. 7 is a plan view thereof.

FIG. 8 is a side view of a vacuum suction unit.

FIG. 9 is a bottom view thereof.

FIG. 10 is a sectional view of a suction cylinder.

FIG. 11 is a pneumatic circuit diagram of the suction cylinder.

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 control flowchart of the control unit.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Developing machine 2 Plate supply device 4 Plate insertion port 10 Plate guide part 11 Vacuum adsorption part 12 Plate transport part 14 Plate mounting part 15 Mounting surface

Claims (1)

[Scope of utility model registration request] 1. A photosensitive material supply device for supplying photosensitive material one by one from above to a photosensitive material supply port of an automatic developing device, wherein the photosensitive material is placed while being inclined above the automatic developing device. A material placing portion, a conveying means disposed between the lower end portion of the photosensitive material placing portion and the photosensitive material supply port, and conveying the photosensitive material of the photosensitive material placing portion to the photosensitive material supply port, Holding and raising means for holding and raising one end of the photosensitive material placed on the uppermost part of the photosensitive material placing portion, and lower surface of the photosensitive material from the one end side of the photosensitive material raised by the holding and raising means And a guide means for guiding the raised photosensitive material to the side of the conveying means.