JPH0529046U - Photosensitive plate transfer device - Google Patents

Abstract

(57) [Abstract] [PROBLEMS] To provide a photosensitive plate transfer device capable of loading and unloading the glass dry plate 35 into and from the Y table 4, and further capable of simply maintaining the mechanism of the Y table 4. [Construction] The transport device includes a granide surface plate 3, a Y table 4 for mounting a photosensitive plate, a pin 15, and a link 16. The Y table 4 for placing the photosensitive plate is movable on the granide surface plate 3. The pin 15 is provided on the Y table 4 so as to be able to project and retract vertically. The link 16 is provided on the granide surface plate 3 and drives the pin 15 up and down.

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 plate transfer device, and more particularly to a photosensitive plate transfer device that carries a photosensitive plate in and out of a laser plotter.

[0002]

[Prior Art]

 The laser plotter is widely used, for example, for creating a master pattern for a printed circuit board, for creating a mask pattern for an LCD (liquid crystal display device), and the like. The laser plotter is classified into a cylindrical scanning type that exclusively uses a flexible photosensitive film and a planar scanning type that uses a photosensitive plate such as a glass dry plate. Since a photosensitive film that easily expands and contracts with respect to temperature changes is not suitable for drawing high-definition images, in order to draw high-definition images used for mask patterns of large-screen active matrix LCDs, glass is used. A plane scanning laser plotter that can use a photosensitive plate such as a dry plate is used.

In a plane scanning laser plotter, a photosensitive plate is placed on a table, and the photosensitive plate is exposed and scanned in two directions within a plane to draw a desired image.

[0004]

[Problems to be solved by the device]

 Conventionally, in a plane scanning type laser plotter, an operator manually supplies a photosensitive plate. However, if the photosensitive plate cannot be automatically supplied, the entire process cannot be automated and, for example, it is impossible to cope with unmanned operation for 24 hours. Therefore, it is conceivable to provide a transfer device that carries the photosensitive plate in and out of the laser plotter.

This transfer device requires a structure that moves while supporting the lower surface of the photosensitive plate. This is because the upper surface of a photosensitive plate such as a glass dry plate is easily scratched. Therefore, it is conceivable that the table of the laser plotter is provided with a vertically retractable pin and a drive mechanism for driving the pin so that the photosensitive plate is placed on the table while supporting the lower surface of the photosensitive plate.

However, since the table has to be precisely moved for drawing, it is necessary to avoid making the table itself into a complicated structure or making it heavy. SUMMARY OF THE INVENTION An object of the present invention is to provide a photosensitive plate transfer device capable of loading and unloading a photosensitive plate with respect to a table and maintaining the structure of the table simply.

[0007]

[Means for Solving the Problems]

 A photosensitive plate transfer device according to the present invention includes a mount, a photosensitive plate mounting table, a photosensitive plate receiving member, and a drive unit. The photosensitive plate mounting table can be moved in one direction on the mount. The photosensitive plate receiving member is provided on the table so as to be vertically retractable. The drive unit is provided on the mount along the moving direction of the table and drives the photosensitive plate receiving member up and down.

[0008]

[Action]

 In the photosensitive plate transfer device according to the present invention, when the photosensitive plate is carried onto the table, the photosensitive plate receiving member advances onto the table to receive the photosensitive plate, and further retracts into the table to mount the photosensitive plate. Place it on the table. At this time, the photosensitive plate receiving member is driven up and down by the driving unit provided on the frame. In other words, the drive unit that drives the photosensitive plate receiving member up and down is provided on a frame different from the table, and it is not necessary to dispose the drive unit on the table. Therefore, the structure of the table is simplified. Further, since the drive unit is provided along the moving direction of the table, the photosensitive plate receiving member can be moved up and down regardless of the moving position of the table.

[0009]

【Example】

 [Structure] FIG. 1 shows a laser plotter adopting an embodiment of the present invention. The laser plotter includes a plane scanning type laser plotter main body 1 adopting a divided raster system, and an automatic loader 2 arranged in parallel with the laser plotter main body 1. The laser plotter main body 1 uses glass dry plates and films of various sizes as photosensitive materials, and further draws a mask pattern or the like at high speed with laser light modulated with image data. The automatic loader 2 stores a plurality of glass plates to be set in the laser plotter body 1, and automatically loads the stored glass plates to the laser plotter body 1 and unloads from the laser plotter body 1. .. Further, the automatic loader 2 is internally provided with a positioning device, which will be described later, and performs precise positioning when the glass plate is loaded on the laser plotter body 1.

As shown in FIG. 2, the laser plotter body 1 is arranged on a flat plate-shaped granide platen 3, a Y table 4 placed on the granide platen 3, and a Y table 4 on the left side of the figure. The laser length measuring device 6 is provided, an optical head 5 is disposed on the back side of the Y table 4, and a laser plotter control unit 7 is disposed on the back side of the optical head 5.

The Y table 4 is supported by air bearings on two rails 10 and 10 arranged along the Y direction so as to be movable in the Y direction, as shown in FIG. The Y table 4 is reciprocated in the Y direction by a drive mechanism including a ball screw 12 arranged between the rails 10 and 10 in parallel with the rail 10 and a motor 11 connected to one end of the ball screw 12. Driven.

The Y table 4 is formed with nine small holes 13 and a large number of suction holes 14 for sucking the glass dry plate. The small holes 13 are formed in four rows in the X direction orthogonal to the Y direction according to the size of the glass plate. The small holes 13 are fitted with pins 15, 15 ... Which can be retracted from the surface of the Y table 13. The suction area of the suction hole 14 is composed of three areas 19a, 19b, 19c, and these suction areas 19a, 19b, 19c can be switched according to the size of the glass plate. Each adsorption area 19a, 19b, 19c is connected to a vacuum pump 24 with a motor 27 via electromagnetic valves 23a, 23b, 23c. These solenoid valves 23a, 23b, 23c are turned on / off according to the adsorption area. It should be noted that these solenoid valves 23a, 23b, 23c are all turned on at the time of transfer and perform suction operation in all suction areas 19a, 19b, 19c. Also, when holding the glass plate, the suction operation is performed as follows. For example, in the case of a small glass plate, only the solenoid valve 23a is turned on and the other solenoid valves 23b and 23c are turned off. In the case of a medium-sized glass plate, the solenoid valves 23a and 23b are turned on and the solenoid valve 23c is turned off. In the case of a larger glass plate, all the solenoid valves 23a, 23b, 23c are turned on. In this way, the suction area is switched according to the size of the glass plate.

Further, below the Y table 4, links 16 that are long in the Y direction are arranged corresponding to the respective rows of the pins 15, 15 ,. The link 16 is connected to a lever 17, which is rotated by a motor 18. Here, the link 16 moves up and down by the turning of the lever 17, and the pin 15 in contact with the upper surface of the link 16 appears and disappears.

FIG. 12 shows the origin of the Y table 4 according to the size of the glass dry plate 35. As shown in the figure, when the size of the glass dry plate 35 is different (35a, 35b, 35c in the figure), the positions of the end portions of the glass dry plate 35 are different. Since the glass plates 35 having different ends are placed on the Y table 4 based on the ends, the origin position of the Y table 4 at the time of transfer is moved to receive the glass plates 35.

Therefore, when the glass dry plates 35a, 35b, 35c of different sizes are placed on the Y table 4, the positions of the pins on the end reference side are displaced by the amounts indicated by l1, l2, for example. Therefore, the length of the link 16 located on the line indicated by P1, P2, P3, and P4 passing over each pin 15 must be determined in consideration of the maximum distance between the pins located on each line and the amount of deviation. There is. In other words, the links 16 located on the lines P1, P2, P3 and P4 need to have the lengths shown by l3, l4, l5 and l3, respectively.

FIG. 4 shows the detailed structure of the Y table 4, and FIG. 5 shows the detailed structure around the pin 15. The Y table 4 is composed of an upper table 71 and a lower table 72 provided on the lower surface thereof. A space 73 is formed between the lower surface of the upper table 71 and the lower table 72. The space 73 is a space partitioned according to the size of the glass plate, and corresponds to the suction areas 19a, 19b and 19c, respectively. The space 73 communicates with the atmosphere via the suction holes 14.

The pin 15 is supported by a pair of upper and lower linear bushes 65 so as to be vertically movable. The linear bush 65 is fitted in the inner circumference of a cylindrical guide 64 with a collar inserted into the Y table 4. A spring 67 is fitted in the pin 15 between the linear bushes 65, 65. The spring 67 is contracted between the spring receiver 81 locked by the E-shaped retaining ring 80 in the middle of the pin 15 and the upper linear bush 65. As a result, the spring 67 urges the pin 15 downward. is doing.

A roller 74 that is rotatable around a horizontal axis is provided at the lower end of the pin 15. The roller 74 faces the upper surface of the link 16. When the link 16 descends, the pin 15 descends due to the urging force of the spring 67. A spring pin 79 in the horizontal direction, which is orthogonal to the extending direction of the link 16, is driven into the middle portion of the pin 15. The spring pin 79 protrudes into a pair of vertically extending guide grooves 78 provided in the guide 64, and restricts rotation of the pin 15. O-rings 68 and 69 are arranged at two locations on the outer circumference of the guide 64. The O-rings 68 and 69 are for hermetically sealing the space 73.

The link 16 moves up and down by the turning of the lever 17 as described above, but at this time, the link 16 is moved in parallel by the plurality of levers 75, 75 as shown by the chain double-dashed line. The lever 75 is rotatably supported by a bracket 76 arranged on the granide surface plate 3. As described above, the motor 18, which is the drive unit for moving the pin 15 up and down, the link 16, and the levers 17 and 75 are arranged on the granide surface plate 3, so that the mechanism of the Y table 4 itself is simple.

As shown in FIG. 2, the optical head 5 is movably supported by a pair of guide members 20, 20 along the X direction orthogonal to the Y direction. An air bearing is adopted as the guide member 20. A ball screw 21 driven by a motor 22 is disposed between both guide members 20, and the optical head 5 reciprocates in the X direction by the rotational driving of the motor 22.

The laser length measuring device 6 includes a HeNe laser light source 25 and an optical system 26, and measures the relative distance between the Y table 4 and the optical head 5. The laser length measuring device 6 measures the relative distance to measure the position and speed of the Y table 4 and the optical head 5 and generate a scanning timing signal. The laser plotter control unit 7 performs an image recording unit, servo control of each motor in the laser plotter body 1, control of an optical system in the optical head 5, and the like. The laser plotter controller 7 includes a microcomputer and the like.

As shown in FIG. 6, the automatic loader 2 is arranged below the stocker 30 and a stocker 30 for independently storing 10 glass plates 35 arranged at one end thereof. A positioning device 31 and a manipulator 32 arranged on the far side of the stocker 30 in the drawing are mainly provided. The stocker 30 includes ten pallets 34, 34 ... Which can be pulled out from one end of the automatic loader 2, and one glass dry plate 35 is placed on each pallet 34. A notch for preventing interference with the arm 60 of the manipulator 32 described later is formed on the back side of the pallet 34 in the drawing. The glass dry plate 35 is positioned with reference to the center in the left-right direction in the figure by the orthogonal positioning members 36 and 37 arranged at the ends of the pallet 34 in the two directions. The positioning members 36 and 37 are detachable according to the size of the glass dry plate 35.

The positioning device 31 includes a plurality of free bearings 40 for movably supporting the glass dry plate 35 in the vertical direction of the horizontal plane, and two sets of positioning members 41 for positioning the glass dry plate 35 placed on the free bearings 40. , 42 and. The positioning member 41 is for positioning the glass dry plate in a direction orthogonal to the transport direction (direction A) of the manipulator 32.

The positioning member 41 includes contact members 44 and 45 that are movable by motors 43a and 43b in a direction orthogonal to the transport direction (direction A). The contact member 44 includes a rotatable lever 46a and a roller 46 supported at one end of the lever 46a so as to be rotatable around a vertical axis. The lever 46a is biased toward the facing contact member 45 side by a spring (not shown). Further, the contact member 45 is provided with a rotatable roller 47 on its upper part. The roller 47 of the contact member 45 serves as a reference end in the direction orthogonal to the transport direction.

The positioning member 42 is a member that positions the manipulator 32 in the transport direction (direction A), and includes a fixed contact member 50 and a movable contact member 51. The contact member 50 is arranged on the front side of the automatic loader 2 so as to extend in the width direction. Rollers 52, 52 are rotatably supported on the upper surface of the contact member 50 at predetermined intervals so as to be rotatable around a vertical axis. The contact member 51 includes two levers 54a (one of which is not shown) rotatable on the upper surface, and a roller 54 supported at one end of the lever 54 so as to be rotatable around a vertical axis. The lever 54a is urged toward the contact member 50 by a spring (not shown). The rollers 52, 52 of the contact member 50 serve as a reference end in the transport direction (direction A).

The manipulator 32 is movable in up and down, turning, and three axes in the radial direction. This is an arm 60 that moves in the radial direction (direction A) and supports the lower surface including the center of gravity of the glass dry plate 35, a swivel portion 61 that supports the arm 60 so that it can move in the radial direction, and a swivel portion 61 in the swivel direction. It is realized by a body 63 that supports the body (moving in the B direction) and the up-down direction (direction C). A non-slip member (not shown) is attached to the upper surface of the arm 60. A motor (not shown) for turning and vertical driving is arranged in the body 63, and a motor (not shown) for driving the radial direction is arranged in the turning portion 61.

A communication port 70 is formed on one side surface of the automatic loader 2. The communication port 70 communicates with the laser plotter body 1, and the glass dry plate 35 is conveyed to the laser plotter body 1 via the communication port 70. In addition, the structure is such that light is cut off between the laser plotter body 1 and the automatic loader 2, and after the glass plate 35 is once set on the pallet 34 of the automatic loader 2, the operator does all the work in a bright room. Can be done.

Next, the configuration of the control system of the laser plotter will be described. As shown in FIG. 7, the control system of the laser plotter includes a main controller 100 including an engineering workstation. A keyboard 101, a CRT 102, a magnetic disk 103, and other input / output units are connected to the main control unit 100. A laser plotter controller 7 and a loader controller 104 are connected to the main controller 100. Each control element of the laser plotter body 1 is connected to the laser plotter control unit 7. Each control element in the automatic loader 2 is connected to the loader control unit 104.

Next, the control function of the laser plotter thus configured will be described. 8 and 9 are control flowcharts of the main control unit 100, FIG. 10 is a control flowchart of the laser plotter control unit 7, and FIG. 11 is a control flow chart of the loader control unit 104. When the start button of the main control unit 100 is pressed by the main control operator, the memory in the CPU is initialized in step S1 of FIG. In step S2, work data is input using the keyboard 101 or the like. Here, for example, the number of stages of the stocker 30, the size of the glass plate, the name of the drawing file in which the drawing data is stored, the type of photosensitive material, the drawing pixel size, and other data are input. Then, in step S3, the operator waits for a work start command.

When the operator finishes the preparatory work such as setting the glass dry plates 35 of respective sizes to be drawn on the pallet 34 of the stocker 30 in order from the top and inputs a work start command, the process proceeds to step S4. .. In step S4, the state of the device is checked based on the information from the laser plotter controller 7 and the loader controller 104. For example, it is checked whether or not the glass plate 35 is present on the Y table 4 or the positioning device 31 and whether or not the pins 15 and 15 are lowered. In step S5, a command for moving the origin of the Y table 4 is output to the laser plotter control unit 7. This origin movement command is a command according to the size of the glass plate.

In step S6, the table origin movement completion signal (step P7) from the laser plotter controller 7 is waited for. When the origin movement completion signal is output from the laser plotter control unit 7, the process proceeds to step S7. In step S7, a load command is output to the loader control unit 104. In step S8, the size check result of the glass plate 35 is received from the loader control unit 104, and it is determined whether the size of the glass plate 35 is the same as the size of the work data. When the size of the glass dry plate 35 is the same as the size indicated by the input work data, the process proceeds to step S9. In step S9, a dry plate movement completion signal (step R9) from the load controller 104 is awaited. When the dry plate movement completion signal is output from the loader control unit 104, the process proceeds to step S10. In step S10, a command for raising the pin 15 is output to the laser plotter controller 7. In step S11, the pin rise completion signal (step P9) from the laser plotter controller 7 is waited for. When the pin rising completion signal is received from the laser plotter control unit 7, the process proceeds to step S12. In step S12, a command to retract the arm 60 of the manipulator 32 is output to the loader control unit 104.

Subsequently, in step S13 of FIG. 9, the loader controller 104 waits for a pull-in completion signal of the arm 60 (step R12). When the pull-in completion signal of the arm 60 is received, the process proceeds to step S14. In step S14, a pin down command is output to the laser plotter controller 7. In step S15, a pin down completion signal (step P13) from the laser plotter controller 7 is waited for. When the pin lowering completion signal is received from the laser plotter controller 7, the process proceeds to step S16.

In step S16, a drawing command is output to the laser plotter control unit 7. In step S17, a drawing completion signal (step P17) from the laser plotter controller 7 is waited for. When the drawing completion signal is received from the laser plotter controller 7 in step S17, the process proceeds to step S18. In step S18, a pin up command is output to the laser plotter control unit 7. In step S19, a pin rising completion signal (step P20) from the laser plotter controller 7 is waited for. When the pin rising completion signal is received from the laser plotter control unit 7, the process proceeds to step S20.

In step S20, an unload command is output to the loader control unit 104. In step S21, an insertion completion signal (step R17) for the arm 60 from the loader control unit 104 is waited for. When the insertion completion signal of the arm 60 is received, the process proceeds to step S22. In step S22, a pin down command is output to the laser plotter controller 7. In step S23, a pin down movement completion signal (step P23) from the laser plotter controller 7 is waited for. When the pin lowering completion signal is received from the laser plotter control unit 7, the process proceeds to step S24. In step S24, a dry plate storage command is output to the loader control unit 104. In step S25, based on the input information in step S2 (FIG. 8), it is determined whether or not the work is completed. When it is determined that the work is not completed, the process returns to step S5. If it is determined that the work is finished, the process is finished.

On the other hand, if it is determined in step S8 of FIG. 8 that the glass dry plate 35 having a size different from the input work data is loaded, the process proceeds to step S26. In step S26, a dry plate storage completion signal (step R15) from the loader controller 104 is waited for. When the storage completion signal is output, the process returns to step S5. Laser plotter control The laser plotter control unit 7 performs initialization such as setting each unit to the initial position in step P1 of FIG. In step P2, it is determined whether or not the origin movement command (step S5) according to the glass dry plate size of the Y table 4 is output from the main control unit 100. If it is determined that the origin movement command is not output, the process proceeds to step P3. In Step P3, it is determined whether or not the pin rising command (Step S10) is output from the main control unit 100. If it is determined that the pin-raising command has not been output, then the flow shifts to step P4. In Step P4, it is determined whether or not a drawing command (Step S16) has been issued from the main control unit 100. When it is determined that the drawing command is not output from the main control unit 100, the process proceeds to step P5. At step P5, other processing is executed. When the other processes of step P5 are completed, the process returns to step P2.

When it is determined in step P2 that the origin control command (step S5) is output from the main control unit 100, the process proceeds to step P6. In step P6, the Y table 4 is moved to the origin according to the size of the glass dry plate 35. In Step P7, the origin movement completion signal of the Y table 4 is output to the main control unit 100. When the output of the origin movement completion signal in step P7 ends, the process returns to step P2.

When it is determined in step P3 that the main controller 100 has issued the pin up command (step S10), the process proceeds to step P8. In Step P8, the motor 18 is rotated, the lever 17 is turned, the link 16 is raised, and the pin 15 is raised. In step P9, the rising completion signal of the pin 15 is output to the main controller 100. In Step P10, the main controller 100 waits for a pin lowering command (Step S14). When the pin lowering command is received from the main controller 100, the process proceeds to step P11.

In step P11, the solenoid valves 23a, 23b, 23c are turned on, and the vacuum pump 24 sucks air from the suction holes 14, 14, ... And starts the suction operation. In Step P12, the motor 18 is rotated in the opposite direction, the lever 17 is turned, the link 16 is lowered, and the pin 15 is lowered. In Step P13, a pin lowering completion signal is output to the main control unit 100 based on a signal from a sensor (not shown). In step P14, the suction areas 19a, 19b, 19c of the suction holes 14, 14 ... Are switched according to the size of the glass dry plate 35. For example, in the case of a small-sized glass dry plate 35, the solenoid valves 23b and 23c are turned off, only the solenoid valve 23a is turned on, and the glass dry plate 35 is suction-held by the suction area 19a on the front side of the Y table 4.

When it is determined in step P4 that the drawing command (step S16) has been output from the main control unit 100, the process proceeds to step P15. In Step P15, the Y table 4 and the optical head 5 are moved, and a drawing process for drawing a predetermined image on the glass plate by the laser light modulated by the image data is performed. In this drawing process, an acousto-optic modulator (AOM) modulates laser light output from a laser light source (not shown) according to image data, and an acousto-optic deflector (AOD) deflects the laser light to a very small width. And scan.

At this time, the relative position of the Y table 4 and the optical head 5 is measured by the laser length measuring device 6, and the servo control of the motors 11 and 22 is performed. Here, by using the laser length measuring device 6 that generates the operation timing signal of the AOD, the control of the AOD scanning optical system can be accurately performed and the accuracy of the drawing pattern can be increased. In Step P16, the table is moved when the drawing is completed. This table movement moves the Y table 4 to the origin position. In Step P17, a drawing completion signal is output to the main controller 100. In Step P18, the main control unit 100 waits for a pin rising command. In Step P18, when the pin raising command is received from the main control unit 100, the process proceeds to Step P19. In Step P19, all the solenoid valves 23a, 23b, 23c are turned off to release the adsorption, and the pin 15 is raised by the rotation of the motor 18. Thereby, the glass dry plate 35 is lifted. In step P20, a pin rising completion signal is output to the main controller 100 based on a signal from a sensor (not shown).

In step P21, the main controller 100 waits for a pin down command. When the pin lowering command is received from the main control unit 100, the process proceeds to step P22. In Step P22, the pin 10 is lowered. In Step P23, a pin lowering completion command is output to the main control unit 100. When the process in step P23 ends, the process returns to step P3.

In this way, the loading / unloading processing of the glass dry plate 35 with the automatic loader 2 is performed by ascending / descending the pins 15, and drawing is performed while moving the Y table 4. Here, since the movable Y table 4 does not include a drive mechanism for the pin 15, the structure is simple and lightweight. Therefore, even when a precise operation of the Y table 4 is required at the time of drawing, the Y table 4 can be easily and accurately driven. As shown in FIG. 11, the loader control unit 104 first performs initialization such as setting each unit to the initial position in step R1. In step R2, it is determined whether or not a load command (step S7) is output from the main control unit 100. When it is determined that the load command is not output from the main control unit 100, the process proceeds to step R3. In step R3, it is determined whether or not the unload command (step S20) is output from the main control unit 100. When it is determined that the unload command is not output from the main control unit 100, the process proceeds to step R4. In step R4, other processing is performed. When the process of step R4 ends, the process returns to step R2.

When it is determined in step R2 that the load instruction (step S7) is output from the main control unit 100, the process proceeds to step R5. In step R5, the arm 60 of the manipulator 32 is pulled out, and the glass dry plate 35 corresponding to the work data is taken out from the stocker 30. In step R6, the taken-out glass dry plate 35 is placed on the free bearing 40 of the positioning device 31. In step R6, the size of the glass plate 35 placed is checked by a sensor (not shown) arranged in the positioning device 31. When the size of the placed glass dry plate 35 is the same as the size instructed by the work data, the process proceeds to step R7. At step R7, the glass dry plate 35 is positioned by the contact members 44, 45, 50, 51 at a position of a size corresponding to the work data.

In step R 8, the manipulator 32 places the positioned glass dry plate 35 on the upper surface of the arm 60, and the arm 60 is retracted from the positioning device 31. Further, the swivel unit 61 is swung 90 ° clockwise, and the glass dry plate 35 is placed on the Y table 4 through the communication port 70. In step R9, a plate movement completion signal is output to the main controller 100. In step R10, the arm control unit 100 waits for an arm retract command (step S12). When it is determined that the arm pull-in instruction is output from the main control unit 100, the process proceeds to step R11. In step R11, the manipulator 32 executes the retracting operation of the arm 60. In step R12, the pull-in completion signal for the arm 60 is output to the main controller 100. In step R13, the manipulator 32 is returned to the origin position. When the processing in step R13 is completed, the process returns to step R2.

In step R3, when it is determined that the unload command (step S20) is output from the main control unit 100, the process proceeds to step R16. In step R16, the arm 60 is advanced, and the arm 60 is inserted between the glass dry plate 35 raised by the pin 15 and the upper surface of the Y table 4. In step R17, an arm insertion completion signal is output to the main controller 100. In step R18, the main controller 100 waits for a command to store the glass dry plate 35 (step S24).

When receiving a storage instruction for the glass dry plate 35 from the main control unit 100, the process proceeds to step R19. In step R19, the arm 60 is pulled in and the glass plate 35 is moved into the automatic loader 2 through the communication port 70. Further, the swivel portion 61 is swiveled 90 ° counterclockwise to further move up and down, and the glass dry plate 35 is stored in the predetermined pallet 34 by the manipulator 32. In step R20, the manipulator 32 is returned to the origin position. When the operation in step R20 ends, the process returns to step R2.

On the other hand, as a result of the check in step R6, if the sizes do not match, the process proceeds to step R14. In step R14, the glass dry plate 35 placed on the free bearing 40 is stored in the original pallet position. In step R14, a dry plate storage completion signal is output to the main controller 100. When this process ends, the process returns to step R2.

[Operation] Next, a series of operations of the above laser plotter will be described. First, the manipulator 32 receives the glass dry plate 35 placed on the pallet 34 by raising the arm 60 from below the notch of the pallet 34, and places it on the free bearing 40 on the positioning device 31. .. Here, after the two sets of contact members 44, 45 and contact members 50, 51 are used to position the glass plate 35 at the position corresponding to the size with respect to the center, the glass plate 35 is transported to the Y table 4 by the manipulator 32. Next, on the Y table 4, the pin 15 is raised by the motor 18 arranged on the granide surface plate 3, and the conveyed glass dry plate 35 is received from the arm 60. When the glass dry plate 35 is placed on the pin 15, the manipulator 32 retracts the arm 60 and returns to the origin.

On the other hand, in the laser plotter body 1 that has received the glass dry plate 35, the pins 15 are lowered and the glass dry plate 35 is placed on the Y table 4. Then, the Y table 4 is moved to the optical head 5 side, and the drawing process accompanied by the movement of the Y table 4 in the Y direction and the movement of the optical head 5 in the X direction is executed. When the drawing process ends, the Y table 4 returns to the origin. Here, since the Y table 4 to be moved does not include the drive mechanism of the pin 15, the structure is simple and the weight is light. Therefore, even when a precise operation of the Y table 4 is required at the time of drawing, the Y table 4 can be easily and accurately driven.

On the Y table 4 which has returned to the origin, the pin 15 is raised again to lift the glass dry plate 35. Subsequently, when the manipulator 32 inserts the arm 60 between the glass dry plate 35 and the upper surface of the Y table 4, the glass dry plate 35 is placed on the arm 60 by lowering the pin 15. Then, the manipulator 32 stores the glass dry plate 35 on the original pallet 34.

In the above embodiment, the recheck is performed in step R6 of FIG. 10, and if the result of the recheck does not match the size, the glass plate is stored and the operation is transferred to the next glass plate. Even if an error occurs due to size mismatch during automatic operation, the operation of the device is not stopped and the work is continued. Other Embodiments (a) In the above embodiments, the glass plate was described as an example of the photosensitive plate, but the present invention can be applied to photosensitive plates other than the glass plate. (B) In the above-described embodiment, the pins that project vertically are used as the photosensitive plate receiving member, but any receiving member that can support the lower surface of the photosensitive plate may be used. (C) In the above-mentioned embodiment, the motor and the link that moves in parallel are used as the driving unit, but the present invention is not limited to this.

Further, since the drive unit is provided along the moving direction of the table, the photosensitive plate receiving member moves up and down regardless of the size of the photosensitive plate, that is, the receiving position of the table. it can.

[0053]

[Effect of the device]

 In the photosensitive plate transfer device according to the present invention, since the photosensitive plate receiving member for transferring the photosensitive plate to the table is vertically driven by the drive unit provided on the mount, it is necessary to provide the drive unit on the table. The table structure is simplified.

[Brief description of drawings]

FIG. 1 is an external perspective view of a laser plotter adopting an embodiment of the present invention.

FIG. 2 is a perspective view of the laser plotter body.

FIG. 3 is a perspective view of a Y table.

FIG. 4 is a partially cutaway side view of the Y table.

FIG. 5 is a vertical cross-sectional partial view showing a pin mounting structure.

FIG. 6 is a perspective view of an automatic loader.

FIG. 7 is a block diagram of a control system.

FIG. 8 is a control flowchart of a main control unit.

FIG. 9 is a control flowchart of a main control unit.

FIG. 10 is a control flowchart of a laser plotter control unit.

FIG. 11 is a control flowchart of a loader control unit.

FIG. 12 is a schematic plan view showing the origin position for each size of the glass dry plate.

[Explanation of symbols]

 3 Granide surface plate 4 Y table 15 pin 16 link 17 lever

Claims (1)

[Scope of utility model registration request] 1. A mount, a photosensitive plate mounting table movable in one direction on the mount, a photosensitive plate receiving member provided on the table so as to be able to move up and down, and a movement of the table on the mount. And a drive unit which is provided along the direction in which the photosensitive plate receiving member is moved up and down, and a photosensitive plate transfer device.