JPH0641060B2 - Method and apparatus for shearing plate material - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a plate material shearing method and apparatus, and more particularly, to determining an optimum plate cutting pattern and an optimum plate cutting procedure of a plate material based on the plate cutting information. The present invention relates to a method and apparatus for shearing a plate material, characterized in that the procedure is displayed on a display device, and the shearing work is sequentially performed according to the plate removing procedure displayed on the display device. Conventionally, an abutting gauge for shearing and positioning a plate material can be automatically positioned based on input data. However, in the high-mix low-volume production, the input data has to be changed each time, and there is a problem that an artificial pre-process is required and the work efficiency is deteriorated.
Also, conventionally, regarding the automation of the return conveyor that conveys the sheared plate material to the piler and returns to the front table direction, the work efficiency that required resetting each time due to changes in the work content is said to be poor. There was a problem. SUMMARY OF THE INVENTION It is an object of the present invention to provide a plate material shearing method and apparatus capable of improving the above problems and improving the work efficiency even in the production of a wide variety of products in small quantities.

Hereinafter, the plate material shearing method and apparatus of the present invention will be described in detail with reference to examples.

FIG. 1 shows a plan view of the shearing device, and FIG. 2 shows a side view thereof. The plate shearing device 1 includes a shearing device main body 3 with an upper blade 5 and a lower blade 7.
The plate material supplied from the front table 9 is sheared. The worker is located on the side of the front table 9 and receives the plate material from the plate material supply device 11 in the direction of arrow A to perform shearing work. The front table 9 is provided with four rows of front gauges FG. The front gauge FG is configured to be capable of appearing and retracting in each row from the table surface, and is movable in the front-rear direction by driving the chain in the chain case 13 based on a gauge control signal from the control device. This moving amount is detected by the encoder 15 and is feedback-controlled. Keyboard 17 close to the operator's position,
A control console 21 provided with a CRT 18, a microphone 19 and the like is provided.

The return conveyor 23 is provided between the front table 9 and the piler 25, and conveys the shear plate material to the piler 25 by driving a conveyor driving motor 26, and is capable of returning to the front table 9 direction.
In addition, the return conveyor 23 is a conveyor rocking cylinder 27.
Thus, the front table side can be moved up and down around the drive shaft 29 of the drive motor 26. The lower limit of this vertical movement is regulated by a stopper 31 so that the shear plate material can be received at an appropriate height position. The shooter 33 provided in front of the return conveyor is controlled to open and close by driving the shooter cylinder 30 in response to a shooter control signal in order to discharge scrap materials such as trimming.

A pinch roller 35 for sandwiching the sheared plate material conveyed by the return conveyor 23 is provided between the return conveyor 23 and the pillar 25. The vertical movement of the pinch roller 35 is performed by the cock 37. Further, an air-type dripping prevention device is provided to prevent dripping of the plate material on the upper surface of the pillar 25. The air-type drip prevention device is configured to inject air upward from the nozzle 43 via the duct 41 by the blower 39. In addition, the pillar 25 has a handle 24 on the rail 43.
It can be moved by the operation.

FIG. 3 shows a block diagram of the control device. The configuration is such that the device control unit 47 is managed under the operating system of the main control unit 45. The main control unit 45 is connected to the color CRT 18, the online storage device 49, the printer 51, etc. via an interface as appropriate. The microphone 19 is connected via the voice recognition device 53. Serial converter 5
Reference numeral 5 denotes a communication interface for expansion, which can constitute a network system with other computers. Communication between the main control unit 45 and the device control unit 47 is performed by the serial converter 57.
Through.

The device control unit 47 includes a switch distribution device 59, a control unit 61,
It has a backup memory unit 63 and a device driving unit 65, and is connected to each other via buses 67 and 69. The switch distributor 59 distributes a signal from the keyboard 17, a signal from the main controller 45, and a signal from the device controller 61 to the main controller or the controller, respectively. The device driving section 65 controls the shooter switch 70, the return conveyor switch 71, etc., and outputs control signals such as a shooter control signal and a conveyor control signal. Further, the drive unit 65 has a D / A conversion unit that sends a drive signal to the servo driver 73 of the drive motor M of the front gauge FG.

The flow chart of FIG. 4 shows an information processing method by the operating system, and a program for defining an optimum cutting pattern and an optimum cutting procedure is stored in the disk memory 49. The optimum cutting pattern and the optimum cutting procedure can be uniquely determined by combining certain products. In the shearing method and its apparatus for small-lot production of a wide variety of products, the combination can be easily selected by a keyboard or voice input.
The selection signal from the keyboard is input to the main controller 45 in the automatic and edit modes, and the controller 6 in other modes.
Input on the 1st side. In step 401, the base material and the processing size are input by a keyboard or voice input. In step 402, a plate cutting pattern and a plate cutting procedure are determined based on the input values, and the result is output to the CRT 18. As will be described later, the CRT displays the cutting pattern, the shearing order, the shearing width, and the like.

In step 403, it is judged whether or not there is an interrupt signal to the main controller 45. This allows the operator to confirm the display and then correct the display. The modifying interrupt signal is processed in step 404 and the new result is displayed on the CRT. In step 405, the start signal A of the shearing work by the push button provided on the control console is received, the signal is judged in step 406, and the process proceeds to step 407. In step 407, the processed data signal B is transmitted from the main controller 45 to the controller 61. The contents of signal B are shear width, number of shears, absolute, increment, process number, return,
These are start and stop signals.

Shear 1 based on the processed data signal B from step 407
When the process is completed, the process end signal C is received from the control unit 61 side in step 408. Upon receiving the process end signal C, the process end process is performed in step 410. The process end process is, for example, a process of deleting the sheared plate material from the CRT and displaying the next shearing procedure on the CRT. Steps 407 to 410 are repeated to confirm the completion of all steps in step 411, and one unit of work is completed, and the next work is started.

The operation of the controller 61 in the automatic mode is shown in the flowchart of FIG. In step 501, it is determined whether or not the push button provided on the control console 21 is pressed, and in step 502, the start signal A is transmitted to the main controller. As described above, the main controller 4
In step 5, this signal A is received in step 405 and step 40
At 7, the processed data signal B is received. At step 504, the input of the processed data signal B is confirmed, and at step 505, the number of processes is judged. A predetermined shearing control is performed in step 506, and a process end signal C is transmitted in step 507. Every time one process is completed, the process returns to step 503, the completion of all processes is judged in step 505, and the process returns to step 501.

The flowchart of FIG. 6 shows the state of the shear control of one step of the device control section 47. Step 601 controls the opening / closing of the shooter 33 shown in FIG. If it is necessary to use a shooter such as an end material for trimming or the like, in step 602 the shooter switch 70 shown in FIG. 3 is operated and the process proceeds to step 603. In step 603, it is determined whether or not the return conveyor 23 needs to be returned, and if necessary, step 6
After returning to the return conveyor at 04, the subsequent step 60
Go to 5. In step 605, the front gauge FG is moved. The movement amount of the front gauge is detected by the encoder 15 and is accurately positioned. After the positioning is completed, the positioning completion CK is properly displayed on the CRT. The operator abuts the plate material on the front gauge, and then, for example, depresses a foot petal (not shown) to perform shearing. In step 608, the shearing completion signal is confirmed. In step 609, if the shooter is open, it is closed. If the return conveyor is on, it is turned off. In step 610, one process is completed. Above, the worker is a CRT
All you have to do is hit the plate against the front gauge and press the foot pedal once while watching the display.

7 to 22 show examples of CRT display. First, trimming is performed by selecting a pattern. The trimming will be described later in addition to other embodiments. FIG. 7 is shown on the central screen of the color CRT, and FIG. 8 is shown on the right screen. ABC ... H indicates a product and shearing is performed in the order of A, B, C ... H. On the right screen of the CRT, it is preferable to display the shear width and the like at the same time as the display of FIG. 8 for the sake of accuracy. 7th
The broken line in the figure shows a shear line, but in the case of a color CRT, it may be a red line, for example. Automatically set front gauge F
The end corresponding to the lower end of FIG. 7 is applied to G and the foot pedal is depressed to shear. At this point, the screen on the right side of the CRT after shearing remains as shown in FIG. The plate material containing the sheared product ABCD is automatically returned by the return conveyor. CRT
The center screen changes to a state in which the return member is rotated 90 °.
Then, when the product A is sheared, the CRT screen is shown in FIG. 9 and FIG.
It looks like Figure 0. That is, the CRT central screen shows a new cutting line between the B product and the C product, and both the central screen and the right screen are figures in which the A product is erased.

When the shearing of A, B, C, D products is completed, the center screen is
The screen on the right side of FIG. 1 is as shown in FIG. Then the eleventh
As described above, if the shearing work is performed as indicated by the shear line in the figure, the return conveyor automatically returns after shearing. As the CRT displays the return member 90
Rotate by ° and perform shearing according to the illustrated shear line. At this time, the screen on the right side is as shown in FIG. 14, and the already sheared product is erased from the screen. 15 and 16 below,
Then, the work proceeds according to the screen display as shown in FIGS. 17 and 18, and the final step shown in FIGS. 19 and 20 is finished to complete the whole shearing step.

FIG. 21 shows a display example at the time of trimming shown on the CRT central screen. In this example, when the four sides are sequentially trimmed, the shearing sequence number is displayed instead of the broken line (red line in the color CRT) as described above. It becomes clear that shearing may be performed in the order of 1, 2, 3, and 4. In this example, the products of A, B,
Instead of showing like C, 1-1, 1-2, ..., 2, 3
It is displayed as etc. to clarify the shearing order. Further, FIG. 22 shows another display embodiment of the right side screen. For example, in FIG. 8, the display is not changed when the product ABCD is sheared at the same time, but in this example, a small gap SPC is provided to clearly indicate that the pre-shearing process has been completed. . In addition, an example is shown in which an arrow R indicating the direction of rotation is displayed in order to indicate how to rotate the plate material including the product ABCD. According to such a display, it is possible to perform extremely efficient work without needing unnecessary thinking until the next step.

As will be understood from the above description of the embodiments, in short, the method of the present invention determines the optimum cutting pattern and the optimum cutting procedure of the plate material based on the cutting information, and the cutting pattern and the plate. Display procedure 18
The method of sequentially separating the part of the product sheared from the plate cutting pattern displayed on the display device 18 from the remaining part when the shearing work is sequentially performed according to the plate cutting procedure displayed on the display device 18 of FIG. Is.

Further, the device of the present invention determines an optimum plate cutting pattern and an optimum plate cutting procedure based on the plate cutting information, and a control device for dividing the sheared product portion from the plate cutting pattern,
A display device 18 for displaying the plate removing pattern and the plate removing procedure, a front table 9 for mounting a plate material, and a front gauge FG provided on the front table 9 and positioned by a gauge control signal from the controller. And a return conveyor 23 that conveys the sheared plate material in the direction of the piler 25 and returns the product in the direction of the float table FG by a conveyor control signal from the controller, and the plate cutting information to the controller. And a board cutting information input device for inputting.

The board information input device is composed of a voice input device.

As is apparent from the above-mentioned configuration, in the method of the present invention, when shearing work is sequentially performed according to the planing procedure displayed on the display device 18, the part of the product sheared from the planing pattern displayed on the display device 18 is performed. Is divided from the remaining portion by, for example, sequentially erasing.

Also, the control device in the plate material shearing device for carrying out the method is configured to determine the optimum plate cutting pattern and the optimum plate cutting procedure based on the plate cutting information, and to divide the sheared product portion from the plate cutting pattern. is there.

That is, according to the present invention, when a shearing operation is performed in accordance with a planing procedure to obtain a product, the part of the product is separated from the planing pattern displayed on the display device 18. Therefore, according to the present invention, it is possible to know the rest of the planing and the product to be sheared next, so that the shearing work can be performed efficiently without making an error in the sequence of the planing. It is possible.

[Brief description of drawings]

Each of the drawings shows an embodiment of the plate material shearing method and apparatus of the present invention, FIG. 1 is a plan view of the plate material shearing device, FIG. 2 is a side view of the plate material shearing device, and FIG. 3 is a block diagram of a control device. FIG. 4, FIG. 5 and FIG. 6 are flowcharts showing the control method. 7 to 22 are explanatory views showing display examples of the CRT screen. 1 ... Plate shearing device, 5 ... Upper blade 7 ... Lower blade 9 ... Front table 17 ... Keyboard, 18 ... CRT 21 ... Control desk 23 ... Return conveyor 25 ... Piler, 45 ... Main Control unit 53 …… Voice recognition device, 61 …… Control unit FG …… Front gauge

Claims (3)

[Claims] 1. An optimum plate removing pattern and an optimum plate removing procedure of a plate material are determined based on the plate removing information, the plate removing pattern and the plate removing procedure are displayed on a display device (18), and the display device is displayed. When the shearing work is sequentially performed according to the stripping procedure displayed in (18), the part of the product sheared from the stripping pattern displayed in the display device (18) is sequentially divided from the remaining part. How to shear a plate. 2. A control device that determines an optimum cutting pattern and an optimum cutting procedure based on cutting information, and divides a sheared product portion from the cutting pattern, the cutting pattern and the cutting plan. A display device (18) for displaying a procedure, a front table (9) on which a plate material is placed, and a front gauge (FG) provided on the front table (9) and positioned by a gauge control signal from the controller. And the sheared plate with a pyra (2
5) a return conveyer (23) for conveying the product in the direction of the front table (FG) in response to a conveyor control signal from the control device and a plate for inputting the cutting information to the control device. A plate material shearing device, comprising: a collecting information input device. 3. The plate material shearing device according to claim 2, wherein the plate cutting information input device comprises a voice input device.