JPS6064735A - Working method of thin sheet - Google Patents

Abstract

PURPOSE:To work a thin sheet with high accuracy in the correct position corresponding to the working position by driving discretely said sheet at both ends and detecting positioning marks at both ends then feeding backward the sheet by a prescribed rate and advancing again the sheet and detecting the marks. CONSTITUTION:A thin sheet is pulled up by suction cups 20, 22 and guides 38, 40 are projected to hold once the sheet. A pulse motor 54 is driven to rotate timing belts 50, 52 on both sides so that the sheet is supplied to a working section such as a cutting section 28. Paralleling mechanisms 62, 64 are provided on the moving plane 56a of the section 28 to parallel the sheet. The positioning marks on the surface of the sheet 10 are detected by photosensors 82 at both ends. A pulse motor 76 (the other end side is not shown) is driven and controlled in accordance with the detection signals thereof to return the sheet by a prescribed extent in the opposite direction and to feed again the sheet in the forward direction until the sensors 82 detect the marks. The sheet is thus driven and controlled discretely at both ends and is subjected to working such as cutting or pressing with high accuracy in the correct position.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a method for processing a thin plate, and particularly to a method for processing a thin plate by cutting or pressing a thin plate into a predetermined number of pieces.

BACKGROUND ART FIG. 1A shows, for example, a plurality of dials of i+, printed thin plates 1 to 1, and thin plate 10 is a small number of dial plates 12-1.12-2.12 with the same pattern. -3,
...and must be divided into each pattern,
Since the number of patterns is too large for the normal press work that performs the 11-way valve splitting, the thin plate 10 is cut by shearing or the like before the press work as shown in FIG. 1B. Cut and separate into a predetermined number of small thin plates 14-1.14-2.14
-3,... are created. That is, as shown in FIG. 1A, there are positioning marks 16 on the surface of the thin plate 10.
-1.16-2.16-3, . . . are printed on J3. IQ 18-1
．． 78-2.18-3, . . . , the lamina 10 is formed into small laminates 14-1.14-2.14-3, . . . as shown in FIG. 1B. [Off] will be separated by 1. And this small thin plate 111-
1.14-2.14-3, ... is press K2 [1koJ
The dial plates 12-1, 12-2, 12-3, . . . 4 can be obtained by pressing into a desired shape.

Thin plate 10 with pattern printing applied as described above
is a predetermined number of small thin plates 14-1.14-2.14-3,...
・However, the cutting position and the cutting [rJ1 position must be determined correctly in accordance with the printed positioning mark. If there is a misalignment between the cutting position and the positioning mark, the desired small There was a problem that the thin plate could only be heated once. As is well known, the dial 12-1.
12-2.123, ... and positioning mark 1G-1
, 16-2, 16-3, . . . , the thin plate 10 is often printed with dials 12-1, 12-2, 12-3, . . . as shown in FIG. and the positioning marks 16-1, 16-2, 16-3, etc. may be misaligned, and if there is such a printing misalignment, or when the thin plate 10 itself is cut out by an incorrect cutting ax, the printing may be dial 12-112-2.12-3,
...and positioning mark 16-1.16-2.16-
In many cases, the parallelism and other aspects of the thin plate 10 are visibly deviated from the peripheral edge 10a of the thin plate 10, and for this reason,
There is a problem in that the peripheral edge 10a of the thin plate 10 cannot be used as a cutting reference during cutting.

In order to overcome the above-mentioned problems, conventional processing methods (Y, λ9
Is there a method of opening holes in the plate 10 corresponding to the dial plate and positioning marks by inserting a bottle of a cutting device into the holes for positioning? There were problems in that machining was required, the workability was poor, and the desired cutting position M degree could not be obtained.

Purpose of the Invention The present invention has been made in view of the above-mentioned conventional problems, and its purpose is to provide a thin plate that can be cut or press-worked with high precision at the correct position corresponding to the cutting or press-working position. The purpose is to provide the processing method for B5.

Structure of the Invention In order to achieve the above-mentioned object, the present invention provides a method for processing a thin plate in which a predetermined number of sheets are cut or pressed.
A positioning mark is made on the thin plate surface in a step corresponding to the cutting or press processing position, and the sensors on both sides of the plate separately form the positioning marks, and the positioning marks are cut on both sides of the λ9 plate until each sensor detects the positioning mark. When both sensors reach the positioning mark, stop feeding the thin plate, then return the thin plate to the specified part in the opposite direction, and then feed the thin plate again until each sensor detects the positioning mark. is fed in the feeding direction, and when both wheels detect the positioning mark, the feeding of the thin plate is stopped and the thin plate is cut or pressed.

Furthermore, in the thin plate processing method of cutting or pressing a thin plate into a predetermined number of pieces, the present invention provides separate feeding drives to both ends of the RFi, and provides RFi on the thin plate surface corresponding to the cutting or pressing position. The positioning mark is detected separately by the sensors 1 on both sides, and the both ends of the thin plate are first fed at high speed and then at low speed until each sensor detects the positioning mark, and when both sensors detect the positioning mark, Stop feeding the thin plate, then return the thin plate at low speed to the predetermined fast path direction, and again feed the thin plate at low speed in the feeding direction until each sensor detects the positioning mark. When both sensors detect the positioning mark, Stop feeding the thin plate,
It is characterized by cutting thin plates (Di or press processing).

Embodiments Hereinafter, preferred embodiments of the C-tree invention will be explained with reference to the drawings.

In FIG. 3, a device for cutting thin sheets is shown.

The cutting device consists of a supply section 26 that supplies thin plates one by one from a group of laminated thin plates, and a cutting section 28 that cuts the supplied thin plates into a desired shape. 3, the auxiliary plate laminated rack 30 has a bottom plate 32
It consists of a left side plate 34 that is erected and fixed at the left end of the bottom plate 32, and a right side plate 36 that is erected and fixed at the bottom of the bottom plate 32. Then, in order to pull up the thin plate, suck it! 20.2
2 are provided, and the suction cup 20.22 supports the suction cup 14~(
(not shown), and as the suction cup support ISJ moves in the upward +1 direction, the suction cups 20 and 22 simultaneously move in the vertical direction.

In order to temporarily hold the thin plate pulled up by the suction cups 20 and 22, guides 38 and 40 are provided on the left side plate 34 and the right side plate 36, respectively.
The right side plate 36 is formed with insertion holes 3/la and 3Cia through which the sword-rl/38.40 can be inserted, respectively.
Thereby, the guys 1-38 and 40 can protrude from the outside of the left side plate 34 and the right side plate 36 into the inside, and can temporarily hold the thin plates 1-1. That is, the left side plate 34
, a conia cylinder 42.4 is provided on the right side plate 36, respectively.
4 is provided, and the guide 38.40 is movable in the directions of arrows C and D, and the directions of arrows E and F by means of the air cylinders 42.44. 38.40 retreats in the direction of arrow C1D to enable the thin plate to be pulled up, and then, when the suction cup 20.22 drops the thin plate, the guide 38.40 moves in the direction of arrows F and F. The thin plates are temporarily held by the guides 38 and 40, which protrude inside the left side plate 34 and the right side plate 36.

The thin plate held by the guides 38 and 40 is cut into the cutting section 2.
8, a drive shaft 716 and a rotating shaft 48 are supported on the left side plate 34 and the right side plate 3G, and a timing belt 50 is stretched between the left end 46a of the drive 11L46 and the left end 48a of the rotating shaft 48. Similarly, a timing bell (52) is stretched on the right end 46b of the drive shaft 46 and the right end 48b of the rotating shaft 48. A timing belt 50.5
2 is a feeding claw made of rubber as part of the slot! :+Oa, 5
2a, and the right side plate 36 has a drive 1111+
A pulse motor 54 is provided for rotationally driving the 46, and by driving the pulse tanabata 54, the
'llll/I(3 rotates in the direction of arrow G, and as a result, the timing pels I・50 and 52 rotate in the direction of arrow 1-1.1, so that the guide 38 , to move the thin plate held by /IO.

In the above manner, the thin plate laminated rack 30 (?j foot end 1
One thin plate is taken out from the group of thin plates prepared, and this (19) plate is supplied to the IJ processing section 28.

The cutting section 28 includes a base 56, and a work holder 58 and a shear 60 are installed on the base 5 [5], and the 1ill plate moves the movable surface 5 (3a) of the base 56, and After that, the workpiece is pressed by the work holder 58, and the sheet 1/-60 (1,
There was a roar as the machine was cut off. In order to make the thin plate almost parallel to the moving surface 56 il
A parallel output machine '+M 62.64 has been installed, and parallel output is possible! 4fl:62.64 are the holding plates 66.64, respectively.
68 and the presser plate 66.68 in the direction of arrow J, arrow 1
, and air cylinders 70 and 72 that move in the M direction.

Therefore, when the thin plate is between the parallelization depressions 62 and 64, the thin plate can be parallelized by moving the holding plate 66 and 68 in the direction of the arrow J and pressing the thin plate by pressing qG. I can do it.

In order to feed the thin plate to the work holder 58 and shear 60, a feed roller 74 and a pulse motor 76 for driving the feed roller 74 are provided on the left side of the moving surface 56a, and similarly, a feed roller 74 and a pulse motor 76 for driving the feeding roller 74 are provided on the right side of the moving surface 56a. Although not shown, a feed roller 78 and a pulse motor 80 for driving the feed roller 78 are also provided.
．． The pulse motor 76 .
An optical lens 82 and an optical lens 84 (not shown) are provided corresponding to the optical hinge 80, and the pulse motor 76.80 is driven based on the detection signal from the optical hinge 82. Rotate Coke 74.78 to feed and drive the U thin plate. In addition, as shown in the above-mentioned Fig. 1△, a ton positioning mark 16 is printed on the surface of the thin plate 10, and the left and right ends of this positioning mark 16 are detected by optical lenses 82 and 84, respectively. As a result, the driving of the pulse motors 7G and 80 is controlled, and the thin plate 10 is driven to be sent to the shear 60 so that the positioning mark 16 is parallel to the seat 60.

The function of each part of the thin plate cutting device (111, 1, 1, 1 and 1) will be explained in detail.

Figures 4A, 4B and 4C show the action of the suction cup and kite.

f! 4 In Figure A, the guides 38 and /IO are retracted in the directions of arrows C and D, respectively, and in this state (the 1-measure board 20.22 attracts the thin plate 10-1 and the
-1 in the direction of arrow P, tJ'7. , ) , soshi-
(In FIG. 11B, the suction cup 20.22 is attached to the thin plate 10.
1 to the specified position, and at this time, Ell J
'For the operation of cylinder 42.44, guide 3 F3
．． 40 move in the directions of arrows E and F, respectively, and insert into the insertion hole 3.
4a and 36a and protrude into the inside of the left side plate 34 and the right side plate 36. Then, in FIG. 4C, the suction cup 20.2
2 avoids the thin plate 10-1 from falling off in the direction of the arrow Q, so that the thin plate 10-1 is temporarily held by the guides 38 and 40.

Due to the following, the suction B 20.22 and the kite 38.40, the thin plates 10 are f&m one by one onto the guide 38.40.

Figure 5.6 shows the operation of the timing belt.

In FIG. 5, the timing heald 50 is rotated in the direction of arrow T1.1 by the rotation of the drive shaft 46, while the thin plate 10 is held on the guide 38 and the timing belt 50 is rotated. The thin plate 10 is fed to the base 56 by the feed pawl boa. That is, the timing belt 50
With the rotation φ, the feed pawl 50a comes into contact with one end of the thin plate 10, and the timing belt 50 further rotates in one direction (arrow), so the thin plate 10 is fed in the direction of the arrow T by the feed pawl 50a. That will happen.

In FIG. 6, the feed roller 74 rotates in the direction of the arrow Ulj, so that the thin plate 10 is driven to be fed in the direction of the arrow T and is fed toward the ship -60. B. Below the feed roller 74, a ten-roller 92 is rotatably provided with a predetermined gap, that is, 314 roller holes 56
A lower roller 92 is pivotally supported in 6b, and both rollers 7
4.92, the thin plate 10 can be reliably fed and driven. Note that the lower roller 92 is not actively driven, but is a roller that rotates according to the rotation of the re-roller 74, that is, the feeding drive of the thin plate 10, and it is the feeding roller 74 that is actively rotationally driven. , J, ta, jX reroller 74 and lower eye roller 92 are preferably formed from urethane l\.

Therefore, timing bells 1 to 50 and 52 are set to J:.

The sheet 10 can be fed to the base 56 and further driven by feed rollers 74 to feed the sheet 10 towards the ship 60.

Next, FIGS. 7A, 7B, and 7C show the action of the parallelizer 4M.

In FIG. 7A, the sheets 10 fed by the timing belts 50, 52 may not be parallel to the feed direction. Then, as shown in FIG. 7B, the presser plate 66.
68 in the directions of arrows J and 1, respectively, and
6. Press down both ends of the thin plate 10 with 68, and press the plate 10.
parallel to the feed direction. Then, as shown in FIG. 7C, actuate the cylinders 70 and 72,
Move the holding plates 66 and 68 in the IV+ direction, respectively.

Therefore, the parallelism (according to i462.64, the thin plate 1
0 can be parallel to the feed direction.

Next, FIG. 8 shows the appearance of the vicinity of the Ll-ra and the sensor. A motor take-off plate 94 is erected on the base 5G, and a pulse motor is mounted on the motor take-off plate 94. 76 is fixed, and furthermore, a feed roller 74 is rotatably provided.

Timing bells 1 and 96 are mounted on the motor shaft 76a1 of the pulse motor 76 and the feed roller 74, and the rotation of the pulse motor 76 can be transmitted to the feed roller 74 by the timing belt 96. .In addition,
A kite 98 is installed adjacent to the motor handle (=I plate 94. Furthermore, in order to detect the positioning mark 16 on the thin plate 10, an optical sensor 82 is installed near the j-slip 11-rough 4.
Based on the detection signal from the optical relay 82, the pulse motor 76 can be driven to feed and drive the thin plate 10.

Next, FIG. 9 shows the use of rollers to drive the thin plate.

If the thin plate 10 is not parallel to the pick-up direction as shown by the two-dot chain line in the figure, the mazer punch 82 detects the positioning mark 16, so the feed 1-1-rough 4 stops; On the other hand, Ren→J' 8 /l 1. ．． 1. If the tree positioning mark 16 is not detected, the feeding drive by the C1j1 reroller 78 is continued. Therefore, the IJ feed drive stops on the left side of the thin plate 10, whereas the feed drive continues on the right side of the thin plate 10, and the thin plate 10 moves in the feeding direction as shown by the solid line in the figure. become parallel.

Figures 1 OA, 10B and 100 show the action of the feed rollers to feed the thin plate 10 in the feeding direction and return it in the opposite direction.

In FIG. 10A, the thin plate 10 is first fed at high speed and then at low speed in the feeding direction until the sensor detects the positioning mark, and when the register 1 detects the positioning mark, the feeding of the thin plate 10 is stopped. Thereafter, as shown in FIG. 10B, the feed roller 74 is rotated in the direction of arrow V, and the thin plate 10 is returned at a predetermined reverse direction at a low speed. And the 10th C
As shown in the figure, the thin plate 10 is fed in the feeding direction at low speed, and when the sensor detects the positioning mark, the feeding of the thin plate 10 is stopped, and the thin plate 10 is pressed by the work holder 58.
The thin plate 10 is cut using a City-60.

Therefore, in FIG. 10A, since the thin plate 10 is first fed at high speed and then at low speed in the feeding direction, the positioning mark can be detected with high accuracy by the sensor, and furthermore, the positioning mark can be detected once the sensor is weighed. After that, the thin plate is returned to the predetermined reverse direction, and the positioning mark is detected again by the sensor, so the thin plate can be fed and driven parallel to the feeding direction. Therefore, the thin plate cutting position r1
) degree can be improved.

FIG. 11 shows flowcharts 1 to 1 of the thin plate cutting operation described above.

In step 100, turn on the power and
In step 02, an initial value is set, and in step 104, it is determined whether the start switch is on. Then, in step 104, the operation of the supply section shifts to the operation of the lifting platform whose start switch is on at step d3.

That is, step 106 is d5 and guide 38.40
asked, and sucked in step 108? i320.22 descends and attracts the thin plate 10, and suctions it at the smooth board 110! 20.22 Raise the force L/ (iK' iJi iO. Then, in step 112, guide 3
8.40 opens, +Ij in step 1111 and sucker 2
0.22 falls off the 1ffll plate 10, which holds the lamina 10 on the guide 38.40, step 11
The timing belt 50°52 operates at 6)1
9. The plates 10 are fed to the cutting section.

Then, in step 118, the thin plate 10 is parallelized by the parallelizer '+M 62.64, and in step 120, the thin plate 10 is fed in the feeding direction at 8 speed until near the positioning mark, and in step '122, the thin plate 10 is is fed in the feeding direction at a low speed until it reaches the positioning mark, and when the positioning mark is detected by the L flaps 82 and 84, the feeding of the thin plate 10 is stopped.

Thereafter, in step 124, the thin plate 10 is removed by a predetermined amount (
For example, 4mn+) is returned in the opposite direction at low speed and step 1
At step 26, the jEg plate 10 is again fed in the feeding direction at low speed to the positioning mark, and when the sensor 82.84 detects the positioning mark at step 128 a5, the thin plate 10
Shearing is performed.

Then, in step 130, it is determined whether or not the shearing has been completed the set number of times. If the shearing has not been completed the set number of times, the process returns to step 120; on the other hand, if the shearing has been completed the set number of times, The process then proceeds to the next step '132, where the remaining portion of the thin plate 10 is discharged.

As described above, according to the flowchart shown in FIG. 11, the thin plate cutting [17i action can be easily performed. I can understand it.

The cutting action of a thin plate can be understood by referring to the flowchart v-t- in FIG.

FIG. 12 shows a timing chart of the thin plate cutting W1 action.

I was at J3 at time t1, the kite opened, and at 114 time t2 I was at J3.
3, the suction cup descends and suctions the thin plate. At time C1, t3, the suction cup collapses and pulls the thin plate, and then the guide closes, and at time [4], the sucker falls off the thin plate and the thin plate is placed on the guide.

The thin plate on this guide is the timing bell I/Nyo [']
supplied to the cutting section.

At time t5, the parallelizers 4;, > are activated to parallelize the thin plate. Then, at time t6, the feed roller rotates normally, thereby sending the thin plate in the feeding direction. Note that during this time period t6 to t7, the thin plate is first fed at high speed and then at low speed. At time [7,
As soon as the sensor detects the positioning mark on the thin plate, the forward rotation of the feed roller stops, and the feed roller rotates in reverse, so that the thin plate is returned in the opposite direction at a low speed. At time d5, when a preset period DAT back has elapsed from time t7, the feeding roller starts rotating forward again, and the thin plate is fed at a low speed in the feeding direction again. At time [9], when the sensor IJ detects the positioning mark, the feed roller stops, so that the IJ is accurately positioned, and sillage is performed at this time. Then, at time j IG, when the shearing is completed, the feed roller rotates normally again, and thereafter, the thin plate is fed and the thin plate is sheared in the same manner.

Therefore, according to the timing chart of FIG. 12, it is possible to easily understand the thin plate cutting tlJi effect.

FIG. 13 shows a block circuit according to an embodiment of the invention. And the processing method mentioned above.

In other words, the thin plate is first fed at high speed, then at (J, (speed),
After that, the thin plate is returned in the opposite direction by a predetermined amount at low speed, and pr ta
The processing method of feeding the thin plate in the feeding direction at low speed and cutting the cut surface of the thin plate is performed by the block circuit shown in FIG.

In FIG. 13, the Tanabata drive circuit 1 is used to drive the left pulse motor 76 and the right pulse motor 80.
50 is installed], and in FIG. 14, 11179 circuits of this motor drive circuit 150 are miniaturized.

In FIG. 14, the pulse signal 5 from the oscillation circuit 152
00 is supplied to the first frequency dividing circuit 154 and divided into a predetermined number of pulses, and the high speed pulse signal 502 from the first frequency dividing circuit 154 has a waveform of:! ! After being subjected to a predetermined waveform shaping operation in the shape circuit 156, it is used as a pulse signal for driving the driver 76 and 80 at high speed. Further, the high speed pulse signal 502 from the first frequency dividing circuit 15/I is further divided in frequency by the second frequency dividing circuit 158 and converted into a low speed pulse signal 504, and the low speed pulse signal 502 from the second frequency dividing circuit 158 is
4 is subjected to a predetermined waveform shaping action in the waveform shaping circuit 160 and then used as a pulse signal for driving the motors 76 and 80 at low speed.

In order to switch and control the speed of the motors 76 and 80, a speed switching control circuit 162 is provided.
621. , L, the one-shot circuit 164 and the delay circuit 166 to which the high-speed pulse signal 502 is supplied;
A preset counter 168 which counts the number of pulses of the signal 508 and raises the count up signal 510 to 1" level when a predetermined number of pulses are counted, and a run 1-up signal 510 are supplied. A flip-flop (hereinafter referred to as "F") 170 that outputs speed control (C4g512) and a preset counter 1
It includes a number setting means 172 (for example, a keyboard) for setting 68 numbers.

Then, when the high-speed pulse signal 502 is supplied to the speed switching control circuit 1111 circuit 162 for a predetermined period of time, the pre-ref 1-counter 168 inputs the input signal 1 to 1;
011. L ``T1'' level roars, this causes F F
170 is activated, and the speed control signal 512 takes the rHJ level. The speed control signal 512 is AND times 'lil 17
'I is inverted and supplied to the AND circuit 174.
At the other end, high-speed pulse No. 48 502 is connected to the waveform shaping circuit 1.
Further, the speed pulse Ril+Oningo 502 is supplied to one end of the AND circuit 176, and the other end of the AND circuit 176 is supplied with the low speed pulse l1-1''15.
07I is supplied via the waveform shaping circuit 160 (and
The speed control signal 512 causes AND[S1 path'174.
It is possible to control the opening and closing of 176.

That is, in the initial state, the speed control signal 5'l21.
i is at the "1-" level, so the circuits from Anne 1 to circuit 17 (5
is heard, AND circuit 174 is closed, and J, S1. :
The middle pulse signal 502 is output from the AND circuit 174. On the other hand, when a predetermined period of time has elapsed, the speed control signal 512 is cut to the r l-I J level. Circuit 176 listens and AND circuit 17
4 is closed, and as a result, the low-speed pulse signal 504 is output from the AND circuit 176. Then, the signal 514 from the AND circuit 174 and the signal 516 from the ant circuit 176 are sent to the AND circuit 1 through an OR circuit 178.
80, the high/low switching signal 518 from the AND circuit 180 is supplied to the motor 76.80, and the speed of the pulse motor 76.80 is switched by the high/low 1,7J switching signal 518.

Therefore, with the motor drive circuit 150, the -E-Tough 6.80 can be driven at high speed initially, and after a predetermined period of time has elapsed, it can be driven again at low speed.

``j 'J wa'5, Mary, t'Ji IU R+'
l III (M @ 512 C L Since it is at the J level, the AND circuit 174 is closed and the high-speed pulse signal 5
02 is output from the AND circuit 174, and as a result, the high/low switching signal 518 becomes a high-speed pulse signal.On the other hand, after a predetermined time has elapsed, the speed switching signal 11011 times 2B "I"
62, the speed control 11 signal 512 changes from 11 to 1.
” level, the AND circuit 176 opens and a low-speed pulse signal 504 is output from the AND circuit 176, and J: 6', 5 low cut 1. January 518 becomes a low-speed pulse signal 3, this Therefore, the seater 76.80 is 7g″a
It is necessary to drive at high 3'M and drive at low speed after passing the predetermined 17171 gy.

Next, in FIG. 13, in order to determine the position of the auxiliary plate, detect the node, and output the detection signal, the I-alignment circuit 182L and the right range circuit 182R/JK circuit 182R/JK system 9R1 are connected.
+, left sensor circuit 182, optical sensor "82, $47
Name ii! l'! 1 path 184L, color-specific ON level setting circuit 186 l-1 operation circuit 1881. and differentiation circuit 19
Turn 0L to the right, and in the same way, the right turn circuit 182R is as follows.
It has a light switch 84, an amplifier circuit 184R, a color-based ON level setting circuit) δ186R1 operation circuit 188R, and a differential circuit 8190R. 3001<
are subjected to predetermined actions by amplifier circuits 184L and R, color-based ON level setting circuits 186L and R, and differentiation circuits 1901 and R, respectively. The position mark detection signal 602R from the circuit 182R is supplied to the motors 76 and 80 via the left and right motor feed control circuit 192.
194.19G, and the S terminals of FF194.196 have position mark detection signals 602L and 602R, respectively.
is supplied, and the operation switching signals 604L and 604R from the Q terminal of F F 194 and 196 are respectively applied to the motor 7.
6.80 Dynamic/1″? is supplied to one terminal.

Therefore, when the thin plate is being fed and driven, the optical lens 82
．． 84 detects the positioning mark, the position mark detection signals 602L and 602R go to the "T1" level, so the motion stop cutting 1atan 604L and 604R
J level, and as a result, the driving of the motors 76 and 80 is stopped by 1'7. d5, motor 76.8
After the drive of motor 0 stops, the reverse rotation of motors 7G and 80 (
217 temporary return in the opposite direction) or the thin plate shift V7-
The ring is held.

In the left and right motor feed control circuit 192, an operation switching signal 60 I! 1. L and 604R are supplied to the one-shot circuit 200 via the AND circuit 198, and the one-non-shot circuit 200 outputs the left and right mark detection signals 606. That is, only when the optical sensors 82 and 84 detect the positioning mark and the operation switching signals (504L and 604R both reach the "1-1" level), the AND circuit 198 listens to the output of the left and right signals from the one-shot circuit 200. Mark detection 11: The bow 606 is at the r I-I J level.The left and right mark detection signals 606 are used for various operations as described later.

When the sensor detects the positioning mark, [-Tough6
．． Reverse 80 I! In order to return the thin plate in the opposite direction, reverse feed mH (U window circuit 202 IJ" iQ GJ is set. (The signal 608 from the OR circuit 204 is F F2 (')
Supplied to G. Signal 6101.1 from the FF 206
1, Purihira 1 ~ Counter 208 Nori Utsuh I1%i
The output signal is input to the output terminal, and is further inverted and supplied to one end of the AND circuit 210. At the other end of the AND circuit 210,
A signal 516 (φ1) from the motor drive circuit 150 is supplied, and a signal from the node circuit 210 is supplied to the pre-ret counter 208 and used as the 1Δ number for counting. Note that a count number setting means 211 is connected to the preset counter 208 in order to set a count error.

Therefore, when both sentries 82 and 84 detect the positioning mark, the left and right mark detection signals @606 are r l
-I J level, and the signal 608 becomes f' l-I J
level and activates FF206, thereby
The forward/reverse switching signal 610 from F 206 is at rLJ level. Therefore, the motors 76 and 80 start reversing, and the preset counter 208 becomes ready to start counting, and the AND circuit 210 listens, so the signal 516 is passed through the AND circuit 210 to the preset counter 208. is supplied to the counter 208, and the brilet counter 2
08, the number of pulses of the signal 516 and the number of times the thin plate is returned in the opposite direction are counted.

When the preset counter 1 to counter 208 counts a predetermined number of pulses, the preset counter 208
Callan 1 ~ App 5'' 1612 from r I-I
It becomes J level and the callan 1-up Ii:i F'j
b i2 is supplied to the other end of the OR circuit 204, and A
The signal 608 from the horn circuit 204 is sent to the FF 206 as [1-
be provided. For this reason, the input signal 612 to UP signal 612 or
If it becomes I-I J level, F F 20
C3 works 1'1, and the lIE secretion switching signal 610 is r l-
As the IJ level changes, the motors 76 and 80 change to normal rotation, that is, the thin plate is sent in the feeding direction, and at the same time, I<9 of the prelet counter 208
;: 'l' is 1゛toI'' level, so Blitz 1
- Count 208 is reset.

Therefore, according to the reverse feed amount setting circuit 202, first, the forward/reverse switching signal ('310 is r l-I J level, C1 motor 7G, 80 is forward rotation, CJ is 1 straw, thin plate is fed. After that, when the optical sensor 82.81 detects the 1m positioning mark, the level of the CFF2 changes to i-:(j).
06 is activated, the forward/reverse switching signal 610 becomes rLJ level, and the motors 76, 80 are thereby reversed, that is, the thin plate is returned in the opposite direction. Then, the reverse rotation of the motor 76.80, that is, the return of the thin plate in the opposite direction, is countered by the preset counter 20'8, and when the motor 76.80 is reversed by a predetermined amount, the count up signal 612 is output. r l-I J level, F
F206 is activated, and the forward/reverse switching signal Q610 becomes rHJ level, thereby causing the motor 76.80 to rotate forward again.
That is, the thin plate will be sent in the feeding direction again.

Further, a forward/reverse feed number setting circuit 212 is provided to set the number of times the thin plate is returned in the reverse direction. When the number of forward/reverse feeds is set, at 212, the left and right mark detection signals 606 are inverted and supplied to the φ terminal of the FF 213.
The D terminal of the FF 213 is supplied with an rHJ level signal of 11ζ. The signal 8614 from the Q terminal of FF213 is
is supplied to one end of the AND circuit 214, and the AND circuit 21
The left and right mark detection signal 606 is supplied to the other end of 4, and the signal @616 from the AND circuit 214 is supplied to the Brillet counter 215. A call 1 to number setting means 216 is connected to the brilet counter 215 in order to set the number 1 to number.

Then, when the preset counter 215 counts a large number of counts, it means that the Rt+ plate has reached a predetermined number of times. -1 No. 618
This will be the "T1" level. Therefore, the sill ring signal φ2 from 729371 to circuit 2'18 is r l - I J
As the level changes, the working circuit 220 of the processing machine 1'1 is activated, a predetermined shearing action is performed, and the thin plates are cut and separated.

Roughly, the optical sensor 82.871I detects the positioning <nork, and the operation switching signals 604L and 6041< are rHJL.
/B/L,,! :, a motor stop release circuit 222 is provided to release the stop of the motor when the motor 76.8o is stopped once again. In the motor stop release circuit 222, the left and right mark detection signal 606 is supplied to one end of an AND circuit 224, and the left and right mark detection signal 606 is supplied to the other end of the AND circuit 224.
A signal 620 from 213 is supplied, and a signal 622 from AND circuit 224 is supplied to one end of OR circuit 226.

A shearing signal φ is connected to the III terminal of the OR circuit 226.
2 is supplied via the knot circuit 228 and the one-shot circuit 230, and the glue ceratoy number 626 from the OR circuit 226 is supplied to the F in the left and right motor feed control circuit 192.
Supplied to the R terminal of F194.196.

Then, the optical hinges 82 and 84 detect the positioning mark, and the left and right mark detection signals 606 are at the rHJ level.Furthermore, when the signal 620 from l-1-213 is at the 11'' level, the AND circuit 224 opens, signal 62
2 hits the "1" level, which causes the reset signal 626. becomes “H” level, so FF194.19
6 is reset and the motor 76, 80 can be reversed 1. Also, when the sill ring signal φ2 from the one-shot circuit 218 becomes r)-IJ sill,
The one-shot signal 624 from the circuit 230 in the evening stop release circuit 222 is at the rHJ level.
Since the reset signal 626 is at the 11'' level, the FF
194 and 196 are reset, the next feeding drive of the motors 76 and 80, and the next feeding of the 1 rope tag and the thin plate are performed.

The block circuit according to the embodiment of the present invention consists of the above-mentioned (111) components.
I will explain based on ~.

The pulse signal 500 from the oscillation circuit 152 is a signal as shown in FIG. Note that at time [I], the shearing signal φ2 is at the ri-IJ level, and since the thin plate is being sheared, the cylinder speed pulse signal 5 is
02 lowers the rLJ level by III J#j.

At time t2, when the shearing signal φ2 reaches the rLJ level, the high speed pulse signal 502 is output, and in turn, the second frequency dividing circuit 158 outputs the low speed pulse signal 50'l. The fast pulse signal 502 is provided to a one-shot circuit 164, which causes one-shot times! ! /
The signal 506 from 1164 is at the r l-I J level. Furthermore, the high-speed pulse signal 502 is transmitted to the waveform shaping circuit 15.
At this time, since the quick melon control signal 512 is at the "L" level, the AND circuit 174 listens, and the signal 514 has a waveform as shown in the figure, and the high/low switching signal 518 is It becomes a high-speed pulse signal.

Therefore, after time t2, the motors 76 and 80 rotate in the forward direction at high speed, thereby feeding the thin plate at high speed in the feeding direction.

The high-speed pulse signal 502 is also supplied to the delay circuit 166, and after a predetermined delay time T50g, the high-speed pulse signal 502 is sent to the pre-seller l-
A counter 168 is provided. That is, there is a delay time T5oa from time t2 (at time t3, which has elapsed, the preset counter 168 starts counting, and
At time t4, when a preset time T510 has elapsed, the count-up m8510 from the l-ring 1-counter 168 reaches the rHJ level.

At time t4, the count-up signal 510 reaches "T1".
'' level, the speed 1 return control signal 512 from the FFI 70 switches to the r l-I J level. Therefore, the AND circuit 174 is closed, and the )7 AND circuit 176 is closed.
The low-speed pulse signal 504 is output from the AND circuit 176 and becomes the high-low switching signal 518 (J low-speed pulse signal).

Therefore, after time t4, motor 7 (1,80
rotates normally at low speed, so the thin plate is fed at low speed in the feeding direction.

At time t5, when the optical sensor 82 determines the position and detects the mark, the signal 600L from the optical sensor 82 becomes the "T1" level, and the position mark detection signal 602L becomes the "T1" level. The operation switching signal 604L from 194 serves as rl-IJ. For this reason,
The motor 76 stops rotating, and the motor 76 stops at time t.
Continues from 5 onwards. At this time t5, the optical sensor 8
Since only No. 2 detects the positioning mark, the left side of the thin plate is being driven to a predetermined cutting position, whereas the right side of the thin plate is not being driven to a predetermined cutting position. Therefore, after time [5], the motor 76 stops, and on the other hand, in order to feed and drive the right side of the thin plate to a predetermined cutting position, only the motor 80 rotates forward at low speed, and feeds and drives the right side of the thin plate. .

At time t6, when the right optical sensor 84 detects the positioning mark, the signal 600R from the optical sensor 84 is r.
The level becomes l-1j, and the position mark detection signal g602R
is at the "11" level, so the operation switching No. 1g 604R from the FF 196 is at the "11" level. For this reason,
Since the rotation of the motor 80 is stopped and the feeding of the right side of the thin plate is stopped, the feeding of both ends of the thin plate is stopped. At this time t6, the operation control signal 60'1. L and 604R are both “
Since the signal is at the "1" level, the AND circuit 198 listens to it, and therefore the left and right mark detection signal 606 from the one-shot circuit 200 becomes the "1" level.

And the AND circuit 22 in the motor stop release circuit 222
4, left and right mark detection No. 13 606 is r l-I
J level, and furthermore, the signal 6.20 CLrHJ
Since it is a level, AND circuit 2 '241J ftl
Therefore, the signal 622 goes to "T1" level, and the reset signal 626 goes to r l-I J level, and F
l-194 and 196 beams are set. In addition, the 115th
At the timing rate shown in the figure, at time [7], the operation switching signals 604L and 604R reach the 11-'' level, and the stoppage of the motors 76 and 80 is released.

Furthermore, at time t6, the left and right mark detection 11 infrared J- No. 606 is rl-IJ sirel, so the reverse j sli t1
(signal from OR circuit 204 in setting circuit 202) -460
8 becomes r1-IJ level, and FF20G operates. Therefore, the forward/reverse switching signal 610 becomes N, 11 novels, and the motor 76.80 applies the reverse signal, 1194k(,j
.

It will be returned in the opposite direction at low speed. In addition, since the j1 reverse switching signal @610 reaches the rLJ level of 4, the preset counter 208 starts to run, and at time t8, when a predetermined time T612 has elapsed from time t6, the count amplifier signal 612 becomes "1". level (U No. 608
becomes the I'HJ level. For this reason, the forward/reverse switching signal 61
0 becomes the rHJ level again, so the motors 76, 80 again rotate in the forward direction at a low speed, thereby feeding the thin plate again at a low speed in the feeding direction.

At time t9, when both optical sensors 82 and 84 detect the positioning mark, a signal 600L is generated.

600R becomes the "T1" level, the position mark detection signals 602L and 602R become the r l-I J level, and therefore the operation switching signals 604L and 604R become the "1H" level, and the rotation of the motor 76.80 stops. . Furthermore, the operation switching signals 604L and 604R are both r.
Since it is l-I J level, the left and right mark detection signal 60
G is at the r l-I J level.

Then, in the forward/reverse feed number setting circuit 212, the left and right mark detection signal 606 is at the “IJ” level, and further,
Since the signal 614 from the FF 213 is also at the "1" level, the signal 616 is at the "T1" level, and the signal 616 is at the "T1" level.
It is supplied to counter 215. In the block circuit of FIG. 13, the count number of the counter 1 to the counter 215 is set to 1, so when the signal 616 reaches the rHJ level, the count up signal 618 goes to the "T1" level. Therefore, the shilling signal ψ2 from the I non-shot circuit 218 becomes r l - I J level. For this reason, 11. fρ1j(,.

In this step, the processing machine operating circuit 220 is activated, and the thin plate is cut and separated at a predetermined cutting position [11i]. Since the sill ring signal φ2 is at the rHJ level, the signal 624 is rI-I in the motor stop release circuit 222.
The J level goes off, and the reset signal 626 goes to the IJ level.

At time tIo, the Si vI-link signal φ2 becomes rL.
When it reaches the J level and the thin plate silling is completed, the reset signal 626 goes to the 1-j level, and -F 19 /l, 196 in the left and right motor feed control circuit 192 is reset. Motion f';'Kirinotsuki a issue 60
4m, 604R is rLJ receiver, 1--976.
80 again starts the rotation from nFJ to feed the thin plate at high speed in the feeding direction, and thereafter the same Vl operation is performed.

As described above, according to the tying chart 17 in FIG. 15, the thin plate is fed at high speed in the feeding direction from time t2 to t4, and the thin plate is fed at low speed in the feeding direction from time t4 to t5 and t6. , at times j5, j6 to [8, the thin plate is returned at a low speed in the opposite direction, at times [8 to t9, the thin plate is fed at a low speed in the feeding direction, and at times t9 to t Io, the thin plate is returned to the predetermined cutting position. It is understood that it is cut and separated at.

DETAILED DESCRIPTION OF THE INVENTION As described in detail, according to the present invention, highly accurate cutting or pressing can be performed at the correct position corresponding to the cutting Ifli or pressing position. Therefore, it is possible to improve the processing position accuracy of cutting or pressing, and it has the advantage of eliminating lateral deviation of the thin plate, especially when processing a wide thin plate. It is possible to speed up the process.

[Brief explanation of the drawing]

FIG. 1A is an explanatory diagram showing a thin plate; FIG. 1B is an explanatory diagram showing a state in which the thin plate is cut into small thin plates; FIG. 2 is an explanatory diagram showing positioning marks on the thin plate and misalignment of the dial; Figure 3 is a perspective view of the thin plate cutting device, No. 4A,
Figures 4B and 4.0 are explanatory diagrams showing the action of the suction cup and guide, Figure 5.6 is a clear diagram of Jβ1 showing the action of the timing bell I, and Figures 7A, 7B, and 70 are illustrations of the action of the parallelizer (Ill). Figure 8 is an oblique external appearance near the roller and sensor.
10A, 10B, 100 FIG. 1 is an explanatory diagram showing the feeding direction of the R9 plate on the roller and the return action in the opposite direction; Fig. 11 is a 1-1 block diagram showing the thin plate cutting action, Fig. 12 is a timing chart showing the thin plate cutting action, and Fig. 13 is a block circuit according to the embodiment of the present invention. 14 is a block circuit diagram of the motor drive circuit, and FIG. 15 is a timing chart of the block circuit of FIG. 13. 10... Hiro 1 counter, 16... Positioning mark, 74.78... Feed roller, 76.80... Pulse smoke, 82.84... Optical sensor, 502... High speed pulse signal, 504...Low speed pulse signal. Agent Patent attorney Yoshikawa 1i) f2 (1 other person) Figure 1A Figure 1B Figure 2 Figure 10A Figure 11 Figure 108 Figure 2 Figure 10C Figure 2

Claims (1)

[Scope of Claims] (1) In a thin plate processing method in which a thin plate is cut or pressed into a predetermined number, a feed drive is applied separately to both ends of the thin plate, and the thin plate surface is adjusted in accordance with the cutting or pressing position. The provided positioning marks are detected separately by sensors at both ends, and both ends of the thin plate are fed separately until each sensor detects the position mark. When both sensors detect the positioning mark, Stop feeding the thin plate, then return the thin plate by a predetermined amount in the opposite direction, feed the thin plate again in the feeding direction until each sensor detects the positioning mark, and when both sensors detect the positioning mark, stop feeding the thin plate. A method for processing a thin plate, characterized in that the process stops and the thin plate is cut or pressed. A thin plate processing method characterized in that the return in the opposite direction and the feeding in the forward direction are repeated a predetermined number of times, and then the thin plate is cut or pressed. (3) The thin plate is cut into a predetermined number. In a thin plate processing method such as cutting or press working, a feed drive is applied to both ends of the thin plate separately, and positioning marks are placed on the thin plate surface corresponding to the cutting W1 or press working position. Each sensor detects the positioning mark separately (1J), and feeds both ends of the thin plate separately at high speed and then at low speed until each sensor detects the positioning mark, and when both sensors detect the positioning mark, the thin plate is stopped. Then, the thin plate is returned to the appropriate direction by a predetermined amount at low speed, and the thin plate is fed again at low speed in the feeding direction until each sensor detects the positioning mark. When both sensors detect the positioning mark, the arJ plate is A method for processing a thin plate, characterized in that the feed is stopped once and the thin plate is cut or pressed.
When both sensors first detect the positioning mark, the return of the thin plate in the opposite direction and the return in the feeding direction are repeated a predetermined number of times, and then the thin plate is cut or pressed. Processing method.