JP2656176B2 - Laser plotter - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a laser plotter, and more particularly to a laser plotter which draws a two-dimensional image on a photosensitive plate with a laser beam.

[0002]

2. Description of the Related Art A laser plotter is used, for example, for forming a master pattern on a printed circuit board, an LCD (Liquid Crystal Display).
Is widely used for the production of mask patterns. Laser plotters include a cylindrical scanning type that exclusively uses a flexible photosensitive film and a plane scanning type that can use a photosensitive plate such as a glass dry plate. A flexible photosensitive material such as a film that easily expands and contracts due to temperature changes is not suitable for drawing a high-definition image. For this purpose, a plane scanning type laser plotter which can use a photosensitive plate such as a glass dry plate is used.

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

[0004]

Conventionally, a flat-scanning type laser plotter has a configuration in which an operator manually supplies a glass dry plate. However, if the glass dry plate cannot be automatically supplied, the entire process cannot be automated, and cannot cope with, for example, unmanned operation for 24 hours. On the other hand, a glass dry photosensitive plate has a photosensitive surface whose upper surface is easily damaged, and it is impossible to stack the photosensitive plates or adsorb and transport the upper surface.

An object of the present invention is to provide a laser plotter that can automatically perform a drawing process on a plurality of photosensitive plates.

[0006]

A laser plotter according to the present invention comprises a laser plotter body, storage means, and positioning means.
And transport means. The laser plotter body draws a two-dimensional image on a photosensitive plate by laser exposure. The storage means stores a plurality of photosensitive plates independently in the vertical direction . position
The determining means is for positioning the photosensitive plate taken out of the storage means.
I do. The transport means includes a storage means, a positioning means, and a laser.
Can move up and down and move back and forth relative to the plotter body
Support means for supporting the lower surface of the photosensitive plate
Storage means, positioning means, and laser plotter body
The photosensitive plate is supported and transported by the support means between the two.

[0007]

In the laser plotter according to the present invention, the storage means
A plurality of photosensitive plates are independently stored vertically.
You. The stored photosensitive plate is relatively high with respect to the storage means.
Once moved to the positioning means by the supporting means that moves down and forwards and backwards
Sent. And after being positioned, the laser plotter
It is conveyed to the main body and set. During these transports,
The photosensitive plate is transported with its lower surface supported by the support means.
It is. In the laser plotter body, the photosensitive plate
On the other hand, a two-dimensional image is drawn by laser exposure. Soshi
The photosensitive plate on which the drawing has been completed is transported to the storage means, and then
The next photosensitive plate is taken out of the storage means and the same operation is performed.
Repeated.

[0008]

【Example】

[Structure] FIG. 1 shows a laser plotter according to one embodiment of the present invention. The laser plotter includes a flat-scanning laser plotter main body 1 employing a split 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 draws a mask pattern or the like at a high speed by laser light modulated with image data. The automatic loader 2 stores a plurality of glass plates for setting on the laser plotter main body 1 and automatically loads the stored glass dry plates onto the laser plotter main body 1 and unloads them from the laser plotter main body 1. Further, the automatic loader 2 includes a positioning device described later therein, and performs positioning when the glass dry plate is loaded on the laser plotter main body 1.

As shown in FIG. 2, a main body 1 of a laser plotter has a flat
A Y table 4 disposed above, a laser length measuring device 6 disposed on the left side of the Y table 4 in the figure, an optical head 5 disposed on the far side of the Y table 4 in the figure, and a rear side of the optical head 5 And a laser plotter control unit 7 disposed at the same time.

As shown in FIG. 3, the Y table 4 has two rails 1 arranged along the Y direction of the granide surface plate 3.
Air bearings are supported on the reference numerals 0 and 10 so as to be movable in the Y direction. In addition, the Y table 4 includes rails 10 and 10.
A ball screw 12 arranged along the rail 10 between the
The ball screw 12 is reciprocated in the Y direction by a drive mechanism including a motor 11 connected to one end of the ball screw 12. Further, on the Y table 4, nine small holes 13 and a large number of suction holes 14 for sucking a glass dry plate are formed.

The small hole 13 is formed in the X direction orthogonal to the Y direction.
The rows are formed according to the size of the glass dry plate. In the small hole 13, a pin 15 that can appear and disappear on the surface of the Y table 4,
15 ... are fitted. A long link 16 in the Y direction is arranged below the Y table 4 corresponding to each row of the pins 15. Link 16 is lever 1
7 are connected to levers 17, 17.
Is turned by the rotation of. Here, the link 16 moves up and down by turning the lever 17, and the link 16
The pin 15 which is in contact with the upper surface of the device comes and goes. Further, the suction area of the suction hole 14 can be switched according to the size of the glass dry plate.

As shown in FIG. 2, the optical head 5 has a pair of guide members 20 and 20 along an X direction orthogonal to the Y direction.
It is supported movably. The guide member 20 employs an air bearing. A ball screw 21 driven by a motor 22 is arranged between the two guide members 20, and the optical head 5 reciprocates in the X direction by rotation of the motor 22.

The laser length measuring device 6 includes a HeNe laser light source 25 and an optical system 26, and measures a relative distance between the Y table 4 and the optical head 5. Laser length measuring device 9
By measuring this relative distance, the Y table 4
And measurement of the position and speed of the optical head 5 and generation of a scanning timing signal. Laser plotter controller 7
Performs recording of an image, servo control of each motor in the laser plotter main body 1, control of an optical system in the optical head 5, and the like. The laser plotter control unit 7 includes a microcomputer and the like.

As shown in FIG. 4, the automatic loader 2 has a stocker 30 provided at one end thereof for independently storing ten glass plates, and a positioning device 31 provided below the stocker 30. And a manipulator 32 disposed on the back side of the drawing with respect to the stocker 30. The stocker 30 includes ten pallets 34, 34 ... which can be pulled out from one end of the automatic loader 20.
A glass dry plate 35 is placed on the pallet 34 one by one. 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 figure. The glass dry plate 35 is positioned on the basis of the center in the left and right direction in the figure by orthogonal positioning members 36 and 37 disposed at the two ends of the pallet 34. 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 supporting the glass dry plate 35 movably in all directions on a horizontal plane, and two sets of positioning for positioning the glass dry plate 35 mounted on the free bearing 40. Member 4
1, 42 are provided. The positioning member 41 is for positioning the glass dry plate 35 in a direction orthogonal to the transport direction (A direction) of the manipulator 32. The positioning member 41 is provided with respective abutment members 44, 45 movable in a direction perpendicular to the conveying direction (A direction) by a motor 43a, 43 b. The contact member 44 includes a pivotable lever 46a and a roller 46 supported at one end of the lever 46a so as to be rotatable around a vertical axis. Lever 4
6a is urged toward the opposing contact member 45 by a spring (not shown). Further, the contact member 45 has a rotatable roller 47 on an upper part thereof. The roller 47 of the contact member 45 serves as a reference end in a direction orthogonal to the transport direction.

The positioning member 42 is used for the manipulator 32.
And a fixed contact member 50 and a movable contact member 51 that is movable. The contact member 50 extends in the width direction on the front side of the automatic loader 2. Rollers 52, 52 are supported on the upper surface of the contact member 50 at predetermined intervals so as to be rotatable about a vertical axis. The abutment member 51 includes a pivotable lever 54a on an upper surface, and a roller 54 supported at one end of the lever 54a 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 roller 52 of the contact member 50,
52 is a reference end in the transport direction (A direction).

The manipulator 32 is movable in three axes of up and down, turning and radial directions, and is movable in a radial direction (A direction).
, The arm 60 supporting the lower surface including the center of gravity of the glass dry plate 35, a revolving portion 61 for supporting the arm 60 movably in the radial direction, and revolving the revolving portion 61 in the revolving direction (B direction) and the vertical direction (C). And a body 63 that is supported so as to be movable in the direction (1). In the body 63, a motor (not shown) for turning and vertically driving is arranged.
1 is provided with a motor (not shown) for radial driving.

A communication port 70 is formed on one side of the automatic loader 2. The communication port 70 is provided in the laser plotter body 1
The glass dry plate 35 is conveyed to the laser plotter main body 1 through the communication port 70. Also,
The structure between the laser plotter main body 1 and the automatic loader 2 is configured to block light, and once the glass dry plate 35 is set on the pallet 34 of the automatic loader 2, all operations can be performed in a light room.

Next, the configuration of the control system of the laser plotter will be described. As shown in FIG. 5, the control system of the laser plotter includes a main control unit 100 including an engineering workstation. The main control unit 100 is connected with a keyboard 101, a CRT 102, a magnetic disk 103, and other input / output units. The main controller 100 is connected to the laser plotter controller 7 and the loader controller 104, respectively. Each control element of the laser plotter main 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. 6 and 7 are control flowcharts of the main controller 100, FIG. 8 is a control flowchart of the laser plotter controller 7, and FIG.
14 is a control flowchart of the control unit 04. When the start button of the main control unit 100 is pressed, the main control operator initializes the memory and the like in the CPU in step S1 of FIG. In step S2, work data is input using the keyboard 101 or the like. Here, data such as the number of stages of the stocker 30, the size of the glass dry plate, the name of a drawing file storing drawing data, the type of photosensitive material, and the size of a drawing pixel are input. Subsequently, in step S3,
Wait for a work start command from the operator.

When the operator finishes the preparation work such as setting the glass dry plates 35 of the respective sizes to be drawn on the respective pallets 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 status of the apparatus is checked based on information from the laser plotter control unit 7 and the loader control unit 104. For example,
It is checked whether a glass dry plate exists on the Y table 4 or the positioning device 31, whether the pins 15, 15 are lowered, and the like. In step S5, a command to move the origin of the Y table 4 to the laser plotter controller 7 is output. This origin movement command is a command corresponding to the size of the glass dry plate.

In step S6, the controller waits for a table origin movement completion signal from the laser plotter controller 7. Origin move completion signal from laser plotter controller 7 (step P7)
Is output, the process proceeds to step S7. Step S7
Then, a load command is output to the loader control unit 104. In step S8, the size check result of the glass dry plate 35 is received from the loader control unit 104, and it is determined whether the size of the glass dry plate 35 is the same as the size of the work data. If the size of the glass dry plate 35 is the same as the size indicated by the input work data in step S8, the process proceeds to step S8.
Go to 9. In step S9, the process waits for a dry plate movement completion signal (step R9) from the loader control unit 104. When a dry plate movement completion signal is output from the loader control unit 104, the process proceeds to step S10. In step S10, a command to raise the pin 15 is output to the laser plotter controller 7.
In step S11, a pin rise completion signal (step P9) from the laser plotter controller 7 is waited. Step S1
In step 1, when a pin rise 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. 7, the process waits for a pull-in completion signal (step R12) of the arm 60 from the loader control unit 104. In step S13, the arm 60
When the pull-in completion signal is received, the process proceeds to step S14.
In step S14, a pin lowering completion signal (step P13) is output to the laser plotter controller 7.
In step S15, a pin descent completion signal (step P13) from the laser plotter control unit 7 is waited. Step S
In step 15, when a pin down signal is received from the laser plotter control unit 7, the process proceeds to step S16.

In step S16, a drawing command is output to the laser plotter controller 7. In step S17, a drawing completion signal (step P17) from the laser plotter control unit 7 is waited. In step S17, when a drawing completion signal is received from the laser plotter control unit 7, step S18 is performed.
Proceed to. In step S18, the laser plotter control unit 7
Outputs a pin rise command to In step S19,
It waits for a pin rise completion signal (step P20) from the laser plotter controller 7. In step S19, when a pin rise completion signal is received from the laser plotter controller 7, step S19 is performed.
Go to 20.

In step S20, the loader control unit 104
, An unload command is output. In step S21, the process waits for an insertion completion signal (step R17) of the arm 60 from the loader control unit 104. In step S21, when an insertion completion signal of the arm 60 is received, the process proceeds to step S22. In step S22, a pin lowering command is output to the laser plotter controller 7. In step S23, a pin lowering completion signal (step P23) from the laser plotter controller 7 is waited. In step S23, when a pin lowering completion signal is received from the laser plotter controller 7, step S2 is performed.
Proceed to 4. In step S24, a dry plate storage command is output to the loader control unit 104. In step S25, it is determined whether or not the work is completed based on the input information in step S2 (FIG. 6). When it is determined in step S25 that the work has not been completed, the process returns to step S5. In step S25, the processing is terminated when it is determined that the work end.

On the other hand, if it is determined in step S8 that a glass dry plate 35 having a size different from the input work data has been loaded, the process proceeds to step S26. In step S26, a dry plate storage completion signal (step R15) from the loader control unit 104 is waited. When the storage completion signal is output, the process returns to step S5. Laser Plotter Control In the laser plotter control section 7, in step P1 of FIG.
Initialization such as setting each unit to an initial position is performed. In Step P2, it is determined whether or not an origin movement command (Step S5) corresponding to the glass dry plate size of the Y table 4 has been output from the main control unit 104. If it is determined in step P2 that the origin movement command has not been output, the process proceeds to step P2.
Proceed to 3. In Step P3, it is determined whether or not a pin raising command (Step S10) has been output from main controller 100. If it is determined in step P3 that the pin-up command has not been output, the process proceeds to step P4. In step P4, a drawing command (step S
It is determined whether 16) has been performed. In step P4,
When it is determined that the drawing command has not been output from the main control unit 100, the process shifts to Step P5. In Step P5, another process is executed. Upon completion of the other processes in Step P5, the process returns to Step P2.

If it is determined in step P2 that the origin control command (step S5) has been output from the main controller 100, the flow proceeds to step P6. In Step P6, the Y table 4 is moved to the origin corresponding to the size of the glass dry plate 35. In Step P7, an 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.

If it is determined in step P3 that the pin control command (step S10) has been output from the main control unit 100, the flow shifts to step P8. In step P8, the pin 15
To rise. In Step P9, a rising completion signal of the pin 15 is output to the main control unit 100. Step P10
Then, the pin lowering command from the main controller 100 (step S
14) Wait. In step P10, when a pin lowering command is received from the main control unit 100, the process proceeds to step P11. In Step P11, air is sucked from the suction holes 14, 14,... By a vacuum pump (not shown), and the suction operation is started. In step P12, the pin 15 is lowered. In step P13, a pin lowering completion signal is output to main controller 100. In step P14, the suction holes 14, 14,.
Is switched according to the size. For example, in the case of a small-sized dry plate, only the area on the front side of the Y table 4 is set as the suction area. Thus, the glass dry plate 35 is held.

If it is determined in step P4 that the drawing command (step S16) has been output from the main control unit 100, the flow shifts to step P15. In Step P15, the Y table 4 and the optical head 5 are moved to perform a drawing process of drawing a predetermined image on a glass dry plate with the laser light modulated by the image data. In this drawing processing, the laser light output from a laser light source (not shown) is modulated by an acousto-optic modulation element (AOM) according to image data, and further deflected to a minute width by an acousto-optic deflection element (AOD). Scan. That is, the Y table 4 is moved in the Y direction (sub-scanning direction) while performing fine width main scanning with the AOD. When the scanning of one minute width is completed, the optical head 5 is moved by the minute width, and the scanning of the next minute width is performed.
This is sequentially repeated to draw the entire drawing area.

The relative positions of the Y table 4 and the optical head 5 at this time are measured by a laser length measuring device 6,
Servo control of the motors 11 and 22 is performed. Also, A
By using the laser length measuring device 6 that generates a timing signal for OD scanning, 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. By this table movement, the Y table 4 is moved to the origin position. In Step P17,
A drawing completion signal is output to the main control unit 100. In Step P18, a pin rising command from the main control unit 100 is waited. In step P18, when a pin lift command is received from the main control unit 100, the flow shifts to step P19. Step P1
At 9, the suction is released and the pin 15 is raised. Thereby, the glass dry plate 35 is lifted. In step P20, a pin rise completion signal is output to main controller 100.

In Step P21, a pin lowering command from the main controller 100 is waited for. In step P21, when a pin lowering command is received from the main control unit, the flow shifts to step P22.
In Step P22, the pin 15 is lowered. In step P23, a pin lowering completion command is output to main controller 100. When step P23 ends, step P2 ends.
Return to

As described above, the loading and unloading of the glass dry plate 35 is performed with the automatic loader 2 by raising and lowering the pins. In the loader control unit 104, as shown in FIG. 9, first, in step R1, initialization such as setting each unit to an initial position is performed. In step R2, it is determined whether or not a load command (step S7) has been output from main controller 100. If it is determined in step R2 that the load command has not been output from the main control unit 100, the process proceeds to step R3. In step R3, it is determined whether or not an unload command (step S20) has been output from main controller 100. If it is determined in step R3 that the unload command has not been output from the main control unit 100, the process proceeds to step R4. In step R4, other processing is performed. Step R4
When the processing of is completed, the process returns to step R2.

When it is determined in step R2 that the load command (step S7) has been output from the main control unit 100, the flow shifts 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 of the stocker 30. Step R6
Then, 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 placed glass dry plate 35 is checked by a sensor (not shown) arranged in the positioning device 31. If the size of the placed glass dry plate 35 is the same as the size specified in the work data, the process proceeds to step R7. In step R7, the contact members 44, 45, 5
According to 0 and 51, the glass dry plate 35 is positioned at a position having a size corresponding to the work data.

In step R8, the positioned glass dry plate 35 is placed on the upper surface of the arm 60 by the manipulator 32, and the arm 60 is withdrawn from the positioning device 31. Further, the turning part 61 is turned 90 ° clockwise, and the glass dry plate 35 is moved through the communication port 70 to the Y table 4.
Place on top. In step R9, a dry plate movement completion signal is output to the main control unit 100. In step R10, an arm retraction command from the main control unit 100 (step S1
Wait for 2). If it is determined in step R10 that the arm retraction command has been output from the main control unit, the process proceeds to step R11. In step R11, the retracting operation of the arm 60 is executed by the manipulator 32. In step R12, a pull-in completion signal of the arm 60 is output to the main control unit 100. In Step R13, the manipulator 32 is returned to the origin position. When the process in step R13 ends, the process returns to step R2.

If it is determined in step R3 that the unload command (step S20) has been 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 table upper surface. In step R17, an arm insertion completion signal is output to main controller 100. In step R18, a storage command for the glass dry plate 35 from the main control unit 100 (step S2).
4) Wait. When receiving the storage instruction of the glass dry plate 35 from the main control unit 100 in step R18, the process proceeds to step R19. In step R19, the arm 60 is pulled in, and the glass dry plate 35 is moved from the communication port 70 into the automatic loader 2. Further, the turning part 61 is turned 90 ° counterclockwise to be further raised and lowered, and the glass dry plate 35 is stored in a predetermined pallet 34 by the manipulator 32. Step R
At 20, the manipulator 32 is returned to the origin position. When the operation in Step R20 is completed, Step R2
Return to

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 at the original pallet position.
In step R14, a dry plate storage completion signal is sent to the main control unit 10
Output to 0. When this process ends, the process returns to the step R2.

[Operation] Next, a series of operations of the above-described 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 portion of the pallet 34, and temporarily places it on the free bearing 40 on the positioning device 31. Here, two sets of contact members 44, 4
After the positioning based on the center at a position corresponding to the size according to 5, 50, 51, the glass dry plate 3 is moved by the manipulator 32.
5 is conveyed on a Y table. Next, in the Y table 4, the pin 15 is raised, and the transported glass dry plate 35 is received from the arm 60. Glass dry plate 35 on pin 15
Is placed, the arm 60 of the manipulator 32 is retracted, and the manipulator 32 returns to the origin. At the same time, the pin 15 is lowered, and the drawing process is performed. When the drawing process is completed, the pin 15 is raised again to lift the glass dry plate 35, the arm 60 of the manipulator 32 is inserted between the glass dry plate 35 and the upper surface of the Y table 4, and the pin 15 is lowered to move the glass dry plate to the arm 60. The pallet is placed on the pallet 34 and unloaded to the original position on the pallet 34.

In the above embodiment, the size is checked in step R6 in FIG. 9, and if the size does not match as a result of the size check, the glass dry plate is stored and the operation moves to the next glass dry plate. Even if an error occurs due to a size mismatch during the operation, the operation of the apparatus is continued without stopping the operation. Each pallet 3 is stored in the automatic loader 2.
There are provided display lamps (not shown) corresponding to the respective pallets 34, and the status of each pallet 34 (processing, processed, unprocessed,
Error etc.) is indicated by the lighting state of the display lamp (blinking, lighting, turning off, fast blinking, etc.).

In the above-described embodiment, when the glass dry plate 35 placed on the pin 15 is placed on the Y table 4 with the lowering of the pin 15, the vacuum drying is performed while the glass dry plate 35 is vacuum-adsorbed from the upper surface of the Y table 4. Therefore, there is no displacement of the glass dry plate 35 when it is lowered. Also, the glass dry plate 35 is Y
After being placed on the table 4, the vacuum area is switched according to the size of the glass dry plate to hold the glass dry plate 35.

[Other Embodiments] (a) In the above embodiment, a glass dry plate has been described as an example of a photosensitive plate, but the present invention can be applied to a photosensitive plate other than a glass dry plate. (B) In the above embodiment, the manipulator 32 was used as the transporting means, but any transporting means can be used as long as the photosensitive plate can be transported between the storage means and the laser plotter body while supporting the lower surface thereof. It may be a mechanism.

[0042]

According to the laser plotter of the present invention, since the lower surface of the photosensitive plate can be conveyed between the storage means and the main body of the laser plotter while being supported by the supporting means , particularly the photosensitive plate can be transported.
Damage to the photosensitive surface can be suppressed. Also, storage means
Once the photosensitive plate has been taken out, the laser plotter
Since it is conveyed to the main unit, high-precision
Set becomes possible.

[Brief description of the drawings]

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

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

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

FIG. 4 is a perspective view of an automatic loader.

FIG. 5 is a block diagram of a control system.

FIG. 6 is a control flowchart of a main control unit.

FIG. 7 is a control flowchart of a main control unit.

FIG. 8 is a control flowchart of a laser plotter control unit.

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

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Laser plotter main body 2 Automatic loader 30 Stocker 32 Manipulator 35 Glass dry plate

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Koji Yao, inventor, 465-1, Kuze Tsukiyama-cho, Minami-ku, Kyoto, Japan Nippon Screen Manufacturing Co., Ltd. Kuze Factory (72) Inventor Yoshito Koyama 465, Kuze Tsukiyama-cho, Minami-ku, Kyoto-shi No. 1 large Japan Screen Manufacturing Co., Ltd. Kuze Factory (56) References JP-A-59-42547 (JP, A)

Claims (1)

(57) [Claims] 1. A laser plotter main body for drawing a two-dimensional image on a photosensitive plate by laser exposure, storage means for storing a plurality of the photosensitive plates independently in a vertical direction, and a photosensitive plate taken out of the storage means. Perform positioning
Positioning means, the storage means, the positioning means and the laser plotter body
It is provided to be able to move up and down and move forward and backward relatively
Supporting means for supporting the lower surface of the photosensitive plate,
The sense between the step, the positioning means and the laser plotter body
A transporting means for transporting the light plate while supporting the optical plate with the supporting means .