JPH0328317B2 - - Google Patents

Description

[Detailed description of the invention]

[Technical Field to Which the Invention Pertains] The present invention relates to an automatic plate engraving device that automatically engraves different characters, figures, etc. with written contents on various plates of different shapes and materials using a laser beam. [Prior art and its problems] FIG. 1 shows a block diagram of this type of laser marking device. In the figure, 1 is a laser beam generator that emits a laser beam, 2 is a shutter that opens and closes the laser beam, and 3A and 3B are laser beams that emit a laser beam on the X and Y coordinate planes perpendicular to the laser beam of the plate 5. 4 is a condenser lens for condensing the laser beam; 6 is a table on which the object to be marked 5 is placed; 7 is a small device for driving and controlling the shutter 2, deflection mirrors 3A, 3B, and table 6. This is a controller consisting of a computer, etc. Note that this controller 7 can incorporate a servo mechanism for feedback controlling the deflection mirrors 3A and 3B. That is, the object to be marked 5 is fixed on the table 6, and the laser beam from the laser beam generator 1 is directed to the deflection mirror 3.
A and 3B move the shutter 2 in the X and Y axes directions, and also control the opening and closing of the shutter 2 to make a mark. By the way, when the marking object 5 is a plate that displays the engine number, certification number, etc. attached to the body of a passenger car, etc., these passenger cars, etc. have different written contents depending on the car type, model, and specifications, and also have different shapes and dimensions. A plurality of plates 5 are required. By the way, we are trying to provide a device that can connect the above-mentioned laser engraving device online to a host processing device that manages the vehicle production line and realize the automatic engraving of plates that display engine numbers, certification numbers, etc. installed on vehicles. In this case, such an automatic plate marking device is required to have the following functions. The plates that are attached to the car body have different written contents depending on the car type, model, and specifications, as well as different shapes and dimensions, so the desired one is selected from among the various plates and engraved based on the instructions from the host processing device. that it is possible. In order to facilitate the work of attaching the engraved plates to the vehicle body, it is possible to collect the engraved plates (for example, for each vehicle body) and supply them to a predetermined position. The light source lamp in the laser beam generating section has a limited lifespan, but the handling and handling required to replace the light source lamp is limited.
To avoid the occurrence of a situation that may affect a vehicle production line even in the event of an unavoidable operation stoppage due to maintenance. However, there has not been an automatic plate engraving device suitable for use in engraving vehicle plates that takes the above-mentioned points into consideration. [Object of the Invention] The present invention has been made in view of the above-mentioned points, and its purpose is to select and engrave a desired plate from among various types of plates, and to assemble a set of the engraved plates. It can be collected and supplied minute by minute to a predetermined position (installation work position), and the operating rate will not drop significantly.
An object of the present invention is to provide an automatic plate marking device. [Summary of the Invention] In order to achieve such an object, the present invention has the following features:
A first laser head 9 and a second laser head provided in parallel.
A laser head 10, a first hopper section 11 and a second hopper section 12 each having a plurality of hoppers that are movable in the front-rear direction and accommodate various types of plates, and the first hopper section 11 and the second hopper section 12. A pusher mechanism 12 having pushers 125, 125 which are disposed movably in the left-right direction on the bottom side of the hopper and send out the desired plate 5 selected by the movement of the first and second hopper parts 11, 12.
3, 123, one end of which is in contact with the first hopper section 11 and the second hopper section 12, respectively. A first stamp conveyor 13 and a second stamp conveyor 14 for transporting the stamp to a fixed position, and the first and second stamp conveyors 1
3 and 14, the shooter temporarily holds each plate 5 that has been engraved and releases the plate 5 that has been held based on a control signal from a controller. 18, and a plate storage container 1 that receives the plate 5 discharged from the shooter 18.
The present invention is characterized in that it includes a conveyor 20 that sequentially conveys the items 9 to 9. [Embodiment of the Invention] Next, an embodiment of the present invention will be described in detail based on the drawings. FIG. 2 shows a schematic configuration diagram of an embodiment of the present invention, A is a front view thereof, B is a plan view thereof, and FIG. 3 is an operation and functional block diagram of FIG. 2. The illustrated plate automatic marking device 8 is mainly composed of the following elements. (1) First and second laser heads (laser beam generators) 9, 10. (2) First and second plate feeding devices 100 and 20 each having first and second hopper portions 11 and 12 that accommodate the plate 5 that is the object to be stamped.
0. (3) It has first and second marking conveyors 13 and 14, respectively, and conveys the plates 5 supplied from the first and second plate supply devices 100 and 200 to the marking positions S ₁ and S ₂ , after which the markings are completed. First and second plate transport devices 300, 400 each transport the plate to the unloading position _S3 . (4) A plate carry-out device 500 that includes a carry-out conveyor 20 and carries out the engraved plate that has been conveyed to the carry-out position _S3 . (5) A plate storage container 19 for storing engraved plates in the plate delivery mechanism. (6) Main operation panel 16 and sub-operation panel 17. (7) Transport case 2 equipped with these components
1. Although the details of each component will be described later, the outline will first be explained based on FIGS. 2 and 3. First and second laser heads 9 and 10
The laser beam generating section 1, shutter 2, deflection mirrors 3A, 3B, condensing lens 4, etc. shown in FIG. 1 are accommodated and arranged in parallel. In addition,
The first and second laser heads 9 and 10 are preferably of the same type, but different types of laser heads may be used as long as they can generate a laser beam with a power density that enables marking on the plate 5. It is possible. Furthermore, plate supply devices 100, 20
The first and second hopper parts 11 and 12 at 0
are provided movably in the front-rear direction Y ₁ and Y ₂ , and each has a plurality of hoppers 11A, three in this embodiment, each of which accommodates various plates 5 of different sizes.
It consists of plates 11B, 11C, 12A, 12B, and 12C, and the plate 5 can be selected by moving. The first and second engraving conveyors 13 and 14 in the plate conveyance devices 300 and 400 are arranged on the same straight line, and their conveyance directions are opposite to each other, and one end is connected to the first and second hopper sections 11,
12, and the other ends thereof are arranged to face each other at the center of the conveyor case 21. The plate conveying device 500 accommodates a shutter 18 which is arranged between opposite ends of the first and second stamping conveyors 13 and 14 and is tiltable, and a plate 5 stamped by the tilting of the shutter 18. It consists of a removable cassette-type plate storage container 19 and a carry-out belt conveyor 20 that carries the plate storage container 19 and carries it out in the direction of the arrow _Y3 . The main operation panel 16 is connected to the first and second laser heads 9, 1
0, first and second hopper sections 11 and 12, first and second marking conveyors 13 and 14, and carry-out conveyor 20, and monitors and operates the first and second marking systems. The sub-operation panel 17 can perform manual operation and transport tests on the second marking system side. As described above, the automatic plate marking device according to the present invention comprises a first marking system and a second marking system. The first marking system includes a first laser head 9, a first plate supply device 100, and a first plate conveyance device 3.
00. On the other hand, the second marking system is composed of a second laser head 10, a second plate supply device 200, and a second plate conveyance device 400. Then, the first stamp system and the second
A plate unloading device 500 is provided as a common part with the marking system. The first marking system and the second marking system can be used simultaneously, or one can be stopped and only the other can be used. Next, an outline of the operation of the automatic plate marking device 8 according to the present invention will be explained based on FIG. 1st
In the second marking system, the first and second hopper parts 11 and 12 are connected to the installed hopper 11A,
11B, 11C and 12A, 12B, 12C are integrally moved in the arrow directions Y ₁ and Y ₂ . Through this movement, the desired plate (wide plate or narrow plate) is selected from among the plates 5 of different sizes (wide and narrow) and written contents housed in the hopper part, and is selected in each marking system. required plate 5
are the first and second stamp conveyors 13 and 1, respectively.
Sent out on 4th. This plate 5 is connected to the condenser lenses 4 and 4 of the first and second laser heads 9 and 10.
are transported to the marking positions S ₁ and S ₂ directly below and stamped. The plates stamped in both stamping systems are conveyed by first and second stamping conveyors 13, 14 to a common portion, plate delivery device 500. In this plate unloading device 500, the plate is temporarily held in the shutter 18 located at the unloading fixed position _S3 . Then, when the various plates 5 are carried from both marking systems and aggregated, and the plates for one car body (that is, one set) are completed, the shooter 18 is tilted and placed in the plate storage container 19 located at the lower position _S4 . Shouted and contained. The plate storage container 19 is continuously mounted on the carry-out belt conveyor 20 and continuously stores one car body worth (one set) of various plates 5, and is a cassette-type container that is removable from the carry-out belt conveyor 20. It is a container. By removing this plate storage container 19 from the belt conveyor 20 and using it, marking of the plate is completed. In addition, the above-mentioned explanation described the example of use in which the first marking system and the second marking system are operated simultaneously. According to this method of use, the finishing time for one set of plates can be shortened. However, if there is time, for example, only the first marking system can be operated and the second marking system can be stopped. Next, details of each of the above components will be explained. Plate supply devices 100 and 200 Plate supply devices 100 and 200 are basically configured in the same way. Therefore, in the following description, only the plate feeding device 100 will be described. FIG. 4 shows a schematic configuration diagram of an embodiment of the plate feeding device 100, in which A is a front view thereof, B is a side view thereof, and C is a perspective view of a pusher. In the figure, hoppers 11A, 11 of the hopper section 11
Various kinds of plates 5 are sorted and accommodated through the upper openings of B and 11C, respectively. In this embodiment, for example, a wide long plate is housed in the hopper 11A, a wide short plate is housed in the hopper 11B, and a narrow plate is housed in the hopper 11C. The plate feeding device 100 has this hopper section 11 (hopper 1
1A, 11B, 11C) and is disposed on the bottom side of this hopper portion 11.
3 and a plate delivery mechanism 124. The pusher mechanism 123
5. A pusher mounting frame 126, a rack 127 fixed to the pusher mounting frame 126, a pinion 128 that meshes with the rack and transmits the driving force of the drive motor 129 to the pusher 125, and a photo sensor 13 that detects the position of the pusher 125.
It consists of 0,131 etc. The pusher 125 includes an upper surface 132 and a lower surface 133 having a step A corresponding to the thickness of one plate 5,
The plate 5 is placed on this lower stage surface 133. The pusher mounting frame 126 fixes the pusher 25 at its upper end, and is driven by a drive motor 129, a pinion 128, and a rack 127.
Fixed frame 134 via ball bearing 135
It performs reciprocating motion in a straight line guided by. In addition, the pusher mounting frame 126 includes light shielding plates 136 and 13.
7 is fixed. This light shielding plate 136 blocks light from the photo sensor 130 to detect the reversed position of the pusher 125, and the light shielding plate 137 blocks light from the photo sensor 130.
31 is shielded from light and the starting position of the pusher 125 is detected. Next, the plate feeding mechanism 124 is provided near the maximum ejection position of the pusher 125 and includes a rubber roller 139 that is rotationally driven by a drive motor 138 and a presser roller 140 that is provided opposite the rubber roller 139. One end of the spring 141 is fixed to the hopper frame 146, and the other end applies a pressing force to the presser roller 140 against the rubber roller 139. Gate plate 142
is provided on the inner surface of the hopper frame 146 on the protruding side of the plate 5, and has a gap B slightly larger than the thickness of one plate 5 between it and the lower surface 133 of the pusher 125. Further, 143 is a push button switch provided on the hopper frame 146, and 144 and 145 are photo sensors for detecting the upper and lower limits of the plate 5 provided on the hopper frame 146. The functions of the plate supply device configured as described above will be explained. Driven by a drive motor 129,
When the pusher 125 moves in the direction of the arrow X due to the linear motion transmitted through the pinion 128 and the rack 129, the plate 5 placed on the lower surface 133 of the pusher 125 also tries to move in the same way. This is blocked by the gate plate 142. However, since there is a gap B between this gate plate 142 and the lower surface 133 of the pusher 125, which is slightly larger than the width of one plate 5, the lowest one of the plates 5 is connected to the gate plate 142. Pass under the 12
It is ejected along with 5. After the plate 5 is pushed out by the pusher 125, the rubber roller 13
9 and press roller 140, the plate is sent to the marking conveyor 13 of the plate transport device 300. When the pusher 125 starts, the upper surface 1
The position of the step A between 32 and the lower step surface 133 is at the rear of the plate 5, and has a gap W. The existence of this gap W is desirable in order to lower the starting torque of the drive motor 129, and is usually set to about 1 mm to 5 mm. Also, Pushya 1
25 in the arrow direction X, the drive motor 129 is configured to stop naturally.
This has the advantages that less impact is applied to the pusher drive mechanism 123, less electrical noise is generated, and the mechanism is simpler. However, due to natural stoppage, the pusher 125 may overrun. Therefore, the photo sensor 1 that detects the reverse position of the pusher 125 is
No. 30 light shielding plates 136 are formed to be longer by an amount corresponding to the overrun. In order to confirm whether the pusher 125 is stopped at a position suitable for starting, the light shielding plate 137 operates the starting position sensor 131 when the pusher 125 is at the starting position. By confirming that both sensors 130 and 131 are operating simultaneously, the pusher 12
You can check the position of 5. Next, FIG. 5 shows an explanatory diagram of the pusher operation state, where A is a normal pusher state, B is a pusher state with a gap, C is a pusher failure state, and D is a gap removed state. In the figure, parts having the same functions as those in FIG. 4 are given the same reference numerals. As shown in FIG. A, the plate 5 is pushed by the step A of the pusher 125, and the gap W
=0 is not necessarily the normal state that emerges. As shown in FIG. 2B, the plate 5 may be carried by the contact friction between the plate 5 and the lower surface 133 and protrude with the gap W remaining. At this time, as shown in Figure C, the pusher 12
5 progresses, the tip C of the next plate 5 may enter between the gate plate 142 and the lower surface 133 of the pusher 125, making it impossible to continue the operation. To avoid this,
In the plate feeding mechanism 124, the rotation of the rubber roller 139 is stopped and it is made to function as a stopper to prevent the advance of the pusher 125 as shown in FIG. Rubber roller 139
is rotated to send out the plate 5. At the same time, the photo sensor 130 detecting this position causes the drive motor 129 to rotate in the opposite direction, reversing the pusher 125 and returning it to the starting position. At the time of this return, the photo sensor 130 is shielded from light by the light shielding plate 136,
If the photo sensor 131 is not shielded from light by the light shielding plate 137, the pusher 125 has not been returned to the starting position, so the pushbutton switch 143 returns the pusher 125. Plate conveying devices 300, 400 Plate conveying devices 300 and 400 are basically configured the same. Therefore, in the following description, only the plate conveying device 300 will be described. FIG. 6 shows a schematic configuration diagram of an embodiment of the plate conveying device 300, in which A is a front view thereof and B is a plan view thereof. In the plate conveying device 300, the hopper section 1 of the plate feeding device 100
1 to 5 (wide plate 5A or narrow plate 5B) is selected and fed. This plate conveying device 300 mainly includes a steering belt 13, a fixed guide side plate 323, and a stopper 3.
24, a proximity switch 325, a plate length detection sensor 326, a plate width detection sensor 327, and a floating guide 328. In this embodiment, the conveyor belt 13 includes three rubber timing belts 329, a drive roller 330, a driven roller 331, press rollers 332, 333, an intermediate roller 334, a drive motor 335, and the like. The fixed guide side plates 323 are provided to sandwich these three timing belts 329, and guide the wide plate 5A being conveyed. The stopper 324 is provided between the fixed guide side plates 323, protrudes from below onto the surface of the timing belt 329, and has a stopper rod 336 that stops the wide plate 5A at the marking position (marking position S ₁ in FIG. 3);
A solenoid 337 that lowers this stopper rod 336, a stopper rod 336 and a solenoid 337
A pin 338 and a stopper rod 33 connecting the
6 and a solenoid 337. In addition, the proximity switch 32
5 is provided downward from above between the fixed guide side plates 323, detects the tip of the wide plate 5A, stops the conveyor belt 13, and performs marking on the plate 5A during this stop. The plate length detection sensor 326 and the plate width detection sensor 327 are reflective photo sensors that detect the presence of the wide plate 5A from below. This is a sensor that detects the wide plate 5A. That is, this wide plate 5A has a wide long plate 5AL and a wide short plate 5.
AS, when the wide long plate 5AL is conveyed, both the length detection sensor 326 and the width detection sensor 327 are turned ON, and on the other hand, when the wide short plate 5AS is conveyed, the length detection sensor 3
26 is turned off, and the width detection sensor 327 is turned on. Further, the floating guide 328 is provided between the fixed guide side plates 323, in this embodiment, sandwiching the timing belt 329 in the center, and serves as a guide plate for the narrow plate 5B carried in and carried out. When the narrow plate 5B is conveyed by the floating guide 328, both sensors 326 and 327
are both turned OFF. Next, the plate conveying device 3 having the above-described configuration is
The functions of 00 will be explained. Plate supply device 10
The wide plate 5A protruding from the hopper portion 11 of 0 is guided by the guide side plate 323, carried in by the timing belt 329, and comes into contact with a stopper rod 336 protruding from the surface of the timing belt 329 and stops. At the same time, the central part of the tip of the wide plate 5A is connected to the proximity switch 325.
, the proximity switch 325 operates to stop the belt drive motor 335. Note that if the drive motor 335 suddenly stops, the timing belt 329 may return, and the stopping position of the wide plate 5A may change. For this reason, the drive motor 335 gradually comes to a natural stop. Therefore, the stopper rod 336 is rotatably supported at the tip of the solenoid 337 by the pin 338. Spring 339 provides a vertical support force to stopper rod 336. The plate length detection sensor 326 and the plate width detection sensor 327 detect two types of wide plates 5 having the same width and different length.
It is detected which one of A (that is, 5AL, 5AS) has completed the import. When the marking is completed and an unloading command is received, the drive motor 335 is driven again, the solenoid 337 is operated at the same time, the stopper bar 336 is pulled down, and the wide plate 5A is unloaded from the plate conveying device 300. Next, FIG. 7 shows a schematic configuration diagram of the floating guide in FIG. 6, where A is a front view thereof, B is a state when the narrow plate is carried in, and C is a state when the narrow plate is carried out. In this figure, parts having the same functions as those in FIG. 6 are given the same reference numerals. The floating guide 328 has a concave cross-sectional shape and includes a guide part 340 that guides the narrow plate 5B on both sides, and a stopper part 341 that is provided inside the guide part 340 and is formed narrowly. This floating guide 328 floats to a state of 328A when carrying in the narrow plate 5B as shown in FIG. A or B, and when carrying out the narrow plate 5B as shown in FIG. falls to the 328B state. Furthermore, when carrying in and out the wide plate 5A, the floating guide 328 descends from the surface of the timing belt 329 as shown in FIG. As described above, the elevating mechanism for elevating and lowering the floating guide 328 includes a forward/reverse drive motor 342 and a pulley 3 to which the rotation of this drive motor 342 is transmitted in this embodiment.
43, consists of a drive link 344, a driven link 345, etc., which are rotated by the rotation of this pulley 343. With the above configuration, the wide plate 5A can be carried in and
At the time of unloading, the floating guide 328, which has been lowered from the surface of the timing belt 329, receives a command to carry in the narrow plate 5B and reaches the maximum floating position 328A as shown in FIG. The narrow plate 5B is guided by the floating guide 328, carried in by the timing belt 329 in the center, and comes into contact with the stopper part 341 and stops. At this time, the tip of the narrow plate 5B is
6, the proximity switch 325 operates to stop the belt drive motor 335, and the timing belt 325 is operated.
9 is stopped. After the marking is completed, the floating guide 328B is in the state of being lowered to the intermediate position as shown in FIG. At this intermediate position, the stop by the stopper part 341 when carrying in the narrow plate 5B is released,
Furthermore, with the start of the unloading operation of the timing belt 329, the narrow plate 5B is unloaded. Note that when the wide plate 5A is carried in, the floating guide 328 is further lowered from the state of the floating guide 328B, and the timing belt 329
The wide plate 5A is brought to a completely downward position from the surface thereof, and does not pose a hindrance to the loading and unloading of the wide plate 5A. Plate unloading device 500 FIG. 8 shows a schematic configuration diagram of an embodiment of the plate unloading device 500. In the figure, parts having the same functions as in FIGS. 2 and 3 are given the same reference numerals. Plate unloading device 50
0 is comprised of a shooter 18 that is tiltably provided at the bottom of a shooter frame 522, a cassette-type plate storage container 19, an output conveyor 20, an output guide plate 523, an extension lane 524, and an inclined lane 525. . Among these, the plate of the first stamping system is conveyed onto the shooter 18 by the first stamping conveyor 13 from the back side of the paper toward the front side (this direction corresponds to the direction of arrow _X1 in FIG. 2), 2 _, the plates of the second stamping system are conveyed by the second stamping conveyor 14 from the front side of the paper to the back side (this direction corresponds to the direction of arrow The data is temporarily held on this computer 18. When one vehicle body (one set) is collected, a one set completion signal is sent from the controller, and the shooter 18 is tilted by means not shown. This tilting of the shooter 18 causes the plate 5 to be shot (dropped) onto the plate storage container 19 . On the other hand, a large number of partition plates 526 are housed in the plate storage container 19, and when the plate storage container 19 is conveyed in the traveling direction _Y3 by the carry-out conveyor 20 and passes through the lower gate 527 of the shooter frame 522, the partition plates 526 is pushed down in the reverse direction _Y4 by the lower gate 527. When the plate storage container 19 advances further and reaches the position (point S ₄ shown in FIG. 3) to receive the plate 5 falling from the shooter 18, the plate storage container 19
A frame feed light shielding plate (not shown) provided on the bottom of the frame operates a photo sensor (also not shown) to stop the carry-out conveyor 20.
At this time, the lower end of the most advanced partition plate 526 is
Reversing guide 5 fixed to conveyance guide plate 523
28. Due to this contact, the partition plate 526 is reversed in the advancing direction _Y3 , forming a V-shaped opening 529 between it and the next partition plate 526, and stands by in a state in which the plate 5 can be received. In this way, thereafter, each time the shutter 18 is tilted, the plate storage container 19 advances one pitch at a time in the traveling direction _Y3 based on the detection of the falling of the plate by a means (not shown).
One partition plate 526 is installed in the traveling direction Y ₃ each time.
It is then reversed to form a V-shaped opening 529 for receiving the falling plate, and the plate 5 corresponding to the entire vehicle body (one set) is received there. In this way, the plate storage container 19
When the last partition plate 526 is reversed by the reversal guide 528, it is released from the carry-out conveyor 20. At that time, this plate storage container 19
is on the unloading guide plate 523, and is moved in the traveling direction Y ₃ by the following plate storage container 19.
When it reaches the extension lane 524, it slides down the slope and is further carried out. Note that when this extension lane 524 is not used, a detection sensor 530 provided at the front end of the unloading guide plate 523 detects the plate storage container 1.
It is also possible to notify that 9 has reached the tip of the carry-out guide 523. In addition, the plate storage container 1 on the carry-out conveyor 20
When there is no subsequent plate storage container 19 within the rear range N of the container 9, a warning may be displayed to indicate that there is a shortage of containers. Note that the plate storage container 19 is conveyed to the discharge guide plate 23 by the discharge conveyor 20, but if there is no subsequent plate storage container 19, a new plate storage container is replenished, and this replenished plate storage container 19 is The forward plate storage container 19 is kept on standby on the unloading guide plate 523 until it reaches the rear of the forward movement plate storage container 19. Therefore, in order to reduce the number of plate storage containers that are kept on standby on the carry-out guide plate 523, it is preferable that the carry-out guide plate 523 is relatively short. Further, the tip of the inclined lane 525 is in contact with the rear end of the carry-out conveyor 20, and the empty plate storage container 19 before receiving the plate 5 is mounted on the inclined lane 525.
Therefore, the empty plate storage container 19 slides onto the discharge conveyor 20 due to the slope of the slope lane 525 in the direction of travel _Y3 . By the way, about seven empty plate storage containers 19 can be mounted on the conveyor 20 in this embodiment. One plate storage container 19 has approximately 20 partition plates 526 and can receive various plates for 20 vehicle bodies. Inclined lane 525
It is difficult to replenish the empty plate storage container 19 because it is far away from the worker who is located in front of the carry-out guide 523. For this purpose, the shooter frame 522 is equipped with a switch 5 for raising and lowering the inclined lane.
32 is provided, and by operating this lift switch 532, the inclined lane 525 is moved in the reverse direction.
The empty plate storage container 19 is easily refilled by being drawn to the state of 525' having an inclination toward _Y4 . Plate Storage Container Fig. 9 is a schematic configuration diagram of an embodiment of the plate storage container, and Fig. 10 is a schematic configuration diagram of a partition plate. FIG. 11 shows an enlarged cross-sectional view taken along the line AA in FIG. 9. In FIGS. 9 to 11, the plate storage container 19 accommodates a large number of partition plates 526. As shown in FIGS. This partition plate 526 is held between grooves 734A, 734A of support shafts 734, 734 that are opposed to each other at the lower part of the partition plate 526. Also,
The tongue-like projection pieces 737 and 738 are provided alternately at the lower ends of the partition plates 526, thereby narrowing the gap d between the partition plates 526 as much as possible. The grooved block 735 is provided within the frame 733 and has long grooves 736 facing each other. This long groove 736 rotatably supports the partition plate 526 by a support shaft 734 . Note that the plate storage container 19 is carried out in the carrying-out direction _Y3 by the carrying-out conveyor 20 that is in contact with the bottom surface of the frame body 733. Further, as described above, the carry-out guide 52 provided at the carry-out end of the carry-out conveyor 20
3, a reversing guide 528 is attached.
This plate storage container 19 is conveyed in the conveyance direction _Y3 , and the tongue-like protrusion piece 737 is moved to the reversing guide 52.
8, the partition plate 526 moves in the opposite direction.
After being reversed from _Y4 to the unloading direction _Y3 , a V-shaped opening 529 is formed between it and the other partition plate 526 before being reversed, as shown in FIG. By forming this opening 529, the plate 5 thrown out from the shooter 18 is easily accommodated between the partition plates 526. The width dimension D of the partition plate 526 is smaller than the width of the plate 5, so that the plate 5 can be easily taken out. [Effects of the Invention] As described above, according to the present invention, two laser heads are arranged in parallel, two hopper portions in which various plates are respectively housed are provided so as to be movable in the front and rear direction, and the A desired plate selected by the movement of the hopper section is carried in, and one end of two marking conveyors to be engraved by the laser head is connected to each of the hopper sections, and the engraved plates are collected and conveyed. By connecting the carry-out conveyor to the other end of the stamping conveyor facing each other, parallel operation is possible, which shortens the stamping time, and independent operation is also possible, so that the two sets of stamping systems back up each other. The operating efficiency can be maintained, and the marked plates are collected and carried out continuously for each car body (one set), so there are effects such as improved work efficiency.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of a laser marking device.
FIG. 2 shows a schematic configuration diagram of an embodiment of the present invention,
Figure A is a front view thereof, and Figure B is a plan view thereof. FIG. 3 is an operational block diagram of FIG. 2. Figure 4 shows a schematic configuration diagram of the plate feeding device, in which Figure A is a front view, Figure B is a side view, and Figure C is a side view.
is a perspective view of the pusher. Figure 5 shows the state of pusher operation, where A is a normal pusher state, B is a pusher with a gap, C is a faulty pusher, and D is a gap removed. FIG. FIG. 6 shows a schematic diagram of the plate conveyance device, with FIG. 6A being a front view thereof and FIG. 6B being a plan view thereof. Figure 7 shows a schematic configuration diagram of the floating guide in Figure 6, Figure A is its front view, Figure B is an explanatory diagram for explaining the state when carrying in the narrow plate, Figure C is the narrow width plate. It is an explanatory view for explaining the state at the time of carrying out a plate. FIG. 8 is a schematic diagram of the plate delivery device. FIG. 9 is a schematic diagram of the plate storage container. 10th
The figures show schematic configuration diagrams of the partition plate, in which Figure A is a perspective view thereof, and Figure B is a schematic diagram of its support shaft. 1st
FIG. 1 is an enlarged cross-sectional view taken along the line AA in FIG. 9. 4: Condenser lens, 5: Plate, 9: First laser head, 10: Second laser head, 11: First
hopper section, 12: second hopper section, 13: first stamp conveyor, 14: second stamp conveyor, 20: unloading conveyor.

Claims (1)

[Claims] 1. A first laser head 9 and a second laser head 10 provided in parallel, and a first hopper section 11 and a second hopper section each having a plurality of hoppers that are movable in the front-rear direction and accommodate various plates, respectively.
A hopper section 12 and a required plate 5 which is arranged movably in the left-right direction on the bottom side of the first hopper section 11 and the second hopper section 12 and is selected by the movement of the first and second hopper sections 11 and 12. Pusher mechanism 1 having pushers 125, 125 for sending out
23, 123, one end of which is in contact with the first hopper section 11 and the second hopper section 12, respectively, and the required plate 5 sent out by the pusher mechanism 123, 123 is transferred to the first laser head 9 and the second laser head 10. A first stamping conveyor 13 and a second stamping conveyor 14 are arranged to touch the opposite ends of the first and second stamping conveyors 13 and 14 for conveying to the stamping fixed position, and each of the stamped parts is plate 5
a shutter 18 that temporarily holds the plates 5 and discharges the plates 5 that have been held based on a control signal from the controller, and a conveyor that sequentially conveys the plate storage container 19 that receives the plates 5 released from the shutter 18. 20,
An automatic plate engraving device is characterized in that it collects plates that have been stamped and transports them to a predetermined position.