JPS5871187A - Digital command type registration adjustor for printing press - Google Patents

Abstract

PURPOSE:To enhance the efficiency of a registration adjusting operation, by a method wherein the position of a form cylinder is digitally displayed, a moving amount of the cylinder is set by a setting mechanism, and the movement of the cylinder is automatically controlled simply by depressing a setting switch one time. CONSTITUTION:A moving amount and a positive or negative sign are set on a setter 13 when moving the printing cylinder 4 in the direction of an arrow C or D, and are set on a setter 25 when moving the cylinder 4 in the direction of an arrow G or H. In the case where +0.05 is set on the setter 13, when the setting switch is depressed, a calculator 14 adds the set value to a signal indicating the present position of the cylinder 4 which signal is fed from a potentiometer 8, and the sum is outputted to a comparator 16. The comparator 16 compares the sum with a signal fed from the potentiometer 8, and outputs a signal to an AND gate 17 until the difference between the two signals being compared is reduced to zero. In accordance with the signal fed to the gate 17, a driving circuit 19 drives a motor 6 to move the cylinder 4 in the direction of the arrow C. Simultaneously, a movable part B of the potentiometer 8 is moved in the direction of an arrow E, and the position of the cylinder 4 after the movement is displayed on a digital display device 11.

Description

[Detailed description of the invention] It is something that

One of the printing operations is registration adjustment.

When performing multi-color printing, judge the degree of grip of the common line area of each color by looking at the finished print, and if it is too thick, remove the plate (=J(,, correct the device. In the latter operation, the printing cylinder registration adjustment device is used to adjust the printing plate 1j14 in either the rotational direction or the counter-rotational direction. This is a device that changes the position of the plate cylinder relative to the printing paper by moving it in the axial direction of the printing press (hereinafter referred to as the front-back direction b) and the axial direction of the printing press, that is, the driving side direction (11t1 direction (hereinafter referred to as the driving direction)).

We added Tanabata to the manual method of operating the FFI signal of this device directly by hand and the mechanism of this device.

A remote control method has been implemented to operate the device using a push button switch.
ing. Conventionally, in the remote control system, as shown in Figure 1, the position of the plate cylinder was detected by a botsithometer, and the position of the plate cylinder was indicated by a voltmeter.

As shown in Figure 2, set the center of the scale on the voltmeter to be 0, which corresponds to the neutral position of the plate cylinder relative to the printing press, and set the plate cylinder's movement r4 from the scale 0 to the left and right in proportion to the amount of movement of the plate cylinder. The distance is calibrated.

The finger 1 of the voltmeter moves as the plate cylinder moves, and when the plate cylinder stops moving, the pointer also stops at that position.

During this time, the operator must continue to press the pushbutton switch that drives the T-tabi in order to move the plate cylinder.

This operation was inefficient because it was difficult to read the position of the voltmeter pointer and the pushbutton switch had to be pressed continuously.

The present invention has been proposed in view of the above, and an object of the present invention is to provide a digital command register adjustment system for a printing press that improves the work efficiency of register adjustment work.

The present invention provides a first adjustment controller 1 that rotates in the direction of rotation of the plate cylinder.
Detection mechanism that detects movement of the plate cylinder in the rotational direction or axial direction from the reference position at 111, and displays the detected value as a digital prisoner. display mechanism.

The setting mechanism for setting the required moving liquid in the rotational direction or axial direction from the base 10 of the plate cylinder and the above-mentioned detection 1+& are adjusted so that they match the set values. ! :' The second plate cylinder σ (:/position) is digitally displayed, so it is easy to read and print (and the plate 11f).
By simply setting the lil =lI rate using the setting mechanism and then operating the control circuit, the plate cylinder can be automatically moved and the register can be adjusted, improving operability.

11G Efficient register adjustment work can be performed.

Hereinafter, two preferred embodiments of the present invention shown in FIG. 6 will be described in detail. In fig.

1 is an operation panel, 2 is a control section, and 6 is a printing section. 6(
-9 (second), 7 is a gear connected to the plate cylinder 4 through a gear device 5A. This is adjustment 9 (first) for longitudinal direction register adjustment in which fJ suddenly deviated through A position 5B. Numeral 8 is a potentiometer that detects movement of the plate cylinder 4 in the driving direction, and numeral 9 is a potentiometer that detects tilting in the front-rear direction. The electrometer 8 and the potentiometer 9 each have an intermediate portion A at one half of the total resistance value and a movable portion B that is slidable in the total resistance chain. The potential difference generated between the intermediate portion A and the movable portion Bvc of the potentiometer 8 is input to the digital display 11, and the position of the plate cylinder is displayed with numbers and + or - signs. 10, - The potentiometer 8 is set so that the potential difference generated between the middle part A of the potentiometer 8 and the movable part 8 becomes zero at the reference position of the plate cylinder 4 determined between the driving side and the operating side of the printing press. is set, and when the second plate cylinder 4 moves in the C direction, that is, toward the drive side of the printing press, the movable part 8 of the potentiometer 8 moves in the E direction, moving from the intermediate part A position to the movable part B IJ: in the E direction. Sometimes it's ten.

Conversely, when the plate and the cylinder 4 move in the D direction toward the operating side of the printing press, the movable part B of the potentiometer 8 moves in the F direction from the position of the intermediate part A to hi゛.The movable part B moves in the F direction. Sometimes it is -.

The number is the difference of 11 degrees L between the intermediate part A and the movable part B of the potentiometer 8, and this corresponds to the distance that the plate cylinder 4 has moved from the base of the plate cylinder 4 by 1 inch. It is set as follows. Middle part A and i of potentiometer 9
The voltage 0'/difference generated in +f section B is input to the digital display 12, and a number and a + or - glue mark are used to display one digit of the plate cylinder.

-1 is set so that the potential difference generated between the middle sA of the potentiometer 9 and the moving part B of the potentiometer 9 becomes zero at the reference position of the plate cylinder 4, which is determined by the direction in which the paper passes through the printing machine. Set up 9.

Plate 1] When 1li14 rotates in the C direction, that is, in the direction of the printing press, the 11■ moving part B of potentiometer 9
IIJ from position 11 of middle part A by moving in the direction
! When l/V part B is in the J direction, it is set to 10. Conversely, when the plate cylinder 4 rotates in the H direction, that is, in the opposite direction to the linking direction when printing one sheet of paper, the 11th axis B of the potentiometer 9 moves in the t (direction 91h) and rotates the image of the intermediate portion A. ) When it is in the direction from the device to the movable part B, it is set as -. The potential difference between the 1st position A and the movable part B in the numeral votechiometer 9 is set, and this is set to match the distance YIi when the plate cylinder 4 rotates from the base position of the plate cylinder 4. ing.

Next, the structure of the operation panel 1 and the control section 2 will be explained together with their functions. Now, the digital display 11 shows +125. It is assumed that the position of version 1lli+, -075, is displayed on the digital display 12. In this state, describe the register adjustment band operation in the trunk direction. Move the plate cylinder further to C.
direction 0. [] Let's move it 5 mm.

Enter the setting device 13 and set it to +005. ''-Psycho is converted into addition command No. 11, and the number is converted into an electric signal as an addition amount and input to the calculator 14. A signal>3- from the potentiometer 8 is also input to the calculator 14. Next, the setting push pin 1 switch 15, the 11 switch and the calculator 14 receive the signal 1 from the potentiometer 8. and setting device 1
Add the signals from 6, and the result is -1,30K +11 electricity 1. −; is output to the comparator 16.

This output dip is held until the plate cylinder 4 reaches the target (i7'i&) and changes during this time (the 1st drive signal of the potentiometer 8 is ignored, and the setting pusher 11 switch 15 is Even if you press it again, the signal will be ignored.

Comparator 16VC is fil'j from potentiometer 8
is input, and its signal and 1. from the arithmetic unit 14 are input. ; Compare the bows and if a difference is found, output to the AND gate 17. A signal 1. is sent to the AND gate 17 when the plate 111i14 moves in the C direction and reaches the limit. The C-direction limit signal 91B, which is set to output L, has a signal of λ.

The third ivy 18 outputs the signal J and compares 2 to 1.
The condition that the signal J from 6 is input is satisfied.
IIfAND gate 17 drives t-6.
Create and clarify the driver 2° for moving the drive/auxiliary circuit 19 in the C direction. Due to the operation of the driver 2o, the t-56 rotates in the direction (1), moves in the direction C of the plate cylinder 4 via the gear device 5A, and moves in the direction of the movable part BG'1E of the potentiometer 8 (.

When the signal from the potentiometer 58 becomes equal to the signal from the arithmetic unit 14, the comparator 16 stops the output, the AND gate 17 and the driver 20 also stop, and the rotation of the output 6 stops. The movement of the first plate cylinder 4 also stops. At that time, the digital display 11 displays +1.30, which is the position of plate M4.

Note that when the signal from the potentiometer 8 becomes equal to the signal from the calculator 14, or by the signal from the three-way switch 18, the calculator 14 releases the previously held signal and presses the setting pushbutton switch 15. When the signal is received, it becomes ready for input. If the value set by the setting device 13 is larger than the limit value of the C-direction movement m@of the plate cylinder 4, the output sound of the AND gate 17 is stopped by the signal from the three-shaped cylinder 18, and the second plate cylinder 4 is moved in the C direction. According to the above, +160 is displayed on the digital display 11, but in this state, it is assumed that the plate cylinder 4 is moved again in the direction of 14.

First, set the setting device 13 to -1,40. - Psycho is converted into subtraction command No. 17M, and the number is converted into an electrical signal as the amount of subtraction and input to the calculator 14. Next, press 2 for settings.
1] When the switch 15 is pressed, the calculator 14 subtracts the signal from the potentiometer 8 and the signal S from the setting device 13, and the military air signal 4 corresponding to the result -olo is obtained. H is output to the comparator 21. This output 1i'r '3' + plate cylinder 4 is held until it reaches the target position, and changes during this time (
The signal from potentiometer 8 is ignored, and even if the setting pushbutton SUI +5Y is pressed again, the signal is ignored. The comparator 21 has potentiometers 8 to 11 and the bow input, and its signal and the fif from the calculator 14 are input to the comparator 21.
': Compare and when a difference is recognized, AND gate 22
Output to. The AND gate 22 is input with a signal IU for the D direction limit set to 5, which outputs a signal when the plate cylinder 4 moves in the D direction and reaches the limit. When the signal output signal 26 is outputting a signal (and the signal from the comparator 21 is being input), the AND gate 22 moves the circuit 19 driving the 7-96 circuits in the D direction. 7-36 is rotated in the M direction, the plate cylinder 4 is moved in the D direction via the gear device 5AY, and the potentiometer 8 [IJ'th Hlin is F]. When the signal from the potentiometer 8 becomes equal to the signal from the calculator 14, the comparator 21 stops the bow.
The AND gate 22 and the driver 24 also stop the signals, the rotation of the plate 6 stops, and the movement of the second plate cylinder 4 also stops. At that time, the digital display 11 shows the position of the plate cylinder 4 as -010.
is displayed. Note that when the signal from the potentiometer 8 becomes equal to the signal from the calculator 14, or when the signal from the triangular pin 23 is lij +J, the calculator 14 removes the signal held until then and sets f' for setting. Ili"3 from the ll211 switch 15 can be received. The value set by the setting device 16 is D of the plate cylinder 4.
If it is larger than the directional movement limit value, the output of the AND gate 22 is stopped by the signal from the top and bottom 23, and the movement of the plate cylinder 4 in the D direction is disabled.

Next, the longitudinal register adjustment operation will be described.

The digital display 12 shows the plate 111N1 position of -075.

Suppose that the position of version +II+1 is further moved by 0.25 dragons in the G direction.

First, set the setting device 25+025. +Sui*le is converted to addition command correction, and n number is shinki 1 as an addition amount.
The signal is converted and input to the arithmetic unit 26. 11 inputs from the potentiometer 9 are input to the arithmetic unit 26.

Next, setting requirements 2 [1 switch 1. The calculator 26 receives the 1.111 signal from the potentiometer 9. Add the signal from the bow and the setting device 25 and output the result -0.50K equivalent electric signal to the comparator 2. This output 1,1 is held until the plate cylinder 4 reaches the target position, and changes during this time (the input from the potentiometer 9 is ignored, and even if the setting pusher 311 switch 27 is pressed again, it will not change). The signal S3 is ignored.The comparator 28 is inputted with the signal from the potentiometer 9, and compares the signal from the potentiometer 9 with the signal from the arithmetic unit 26. If a difference is found, the AND gate 29
Outputs a signal to. In addition, a signal 2t is input to the AND gate 29 from a G direction limit gauge 30 which is set to output a signal when the plate cylinder 4 moves in the G direction and reaches the limit. When the condition that the three-piece 60 is not outputting a signal and the signal from the comparator 28 is being input is satisfied, the AND gate 29 activates the drive circuit 310 for moving in the G direction that helps drive the t-7. Kaku'IIJ is
32 y (operate. 7-9 by operating the driver 62
7 rotates in the N direction, the plate cylinder 4 moves in the G direction via the gear device 5B' ((through which the potentiometer 9θJ movable part B
moving in the direction. When the signal 1R from the potentiometer 9 becomes equal to the signal from the comparator 26, the comparator 2
B stops the signal, the AND gate 29 and the driver 32 also stop the signal, the rotation of the 7-97 stops, and the movement of the first plate cylinder 4 also stops. At that time, the digital display 12 shows the plate cylinder 4 (
-050, which is the 17th position, is displayed. Note that when the signal from the potentiometer 9 becomes equal to li'l''j from the computing unit 26, or when the signal 3 from the input signal 30 is received, the computing unit 26 changes the flr 'j solution 1 that had been held until then.
After that, the 117 bow from the setting push button switch 27 can be inserted. If the value set from the setting device 25 K is larger than the G direction movement limit value of the plate cylinder 4, then yes! The signal J from the ivy 60 stops the output of the AND gate 29, making it impossible for the plate cylinder 4 to move in the G direction.

At present, -050 is displayed on the digital display 12, and in this state, we want to move the plate cylinder 4 again to the 07-H direction. First, set the setting device 25 to -070. - The sine is converted into an electrical signal as a subtraction command signal and input to the operator 26.

Next, set the setting press @ 11 Sui Richi 27 to the signature and the calculator 26
subtracts the 1a bow from the potentiometer 9 and the j bow from the setter 25, and outputs an electric 18 bow corresponding to the result -120 to the comparator 36. This output fB is held until the plate cylinder 4 reaches the target position, and changes during this time (13÷3 from the potentiometer 9 is ignored, and even if the setting push angle is pressed once, twice, and again. The signal from the potentiometer 9 is input to the comparator 33, which compares this signal with the signal from the arithmetic unit 26 and outputs a signal to the AND gate 64 if a difference is found.

The AND gate 64 is inputted with a signal from the H direction limit tripod 35 which is set to output a signal when the plate 1111il 4 moves in the H direction and reaches the limit. When 65 is not outputting a signal (and satisfies the condition that a signal from comparator 36 is being input), AND gate 34 outputs baud to circuit 61 to 97.
The driver 6 for moving in the H direction is activated. Kakeru @ device 66
(Due to this, 7-37 rotates in the P direction and gear device 5B
The plate 111ii14 moves in the H direction, and the Ill moving part B of the potentiometer 9 moves in the direction.

The signal from the potentiometer 9 is output from the calculator 26 (i
When it becomes equal to t';, the comparator 63 stops the signal;
The AND gate 164 and the driver 66 are also stopped, the rotation of the AND gate 7 is stopped, and the movement of the plate cylinder 4 is also stopped.

At that time, the digital display 12 displays -120, which is lI'/position of the plate cylinder 4. Note that when the signal from the potentiometer 9 becomes equal to INj'J from the calculator 26, or when the signal from the third-stage switch 55 is input, the calculator 26 releases the signal held until then and presses the setting push button switch.・The (+3 'J' (!) receiver from the position 27 is in a state where it can be inserted. If the value set by the setting device 25 is larger than the T1 direction movement limit value of the plate cylinder 4, the position 65 11 from 11: The bow stops the output of the AND gate 64, making it impossible for the plate cylinder 4 to move in the 11 direction.

As described above, according to this embodiment, the time required to determine the position of the plate cylinder can be reduced by providing an easy-to-read digital display. In addition, the time required for setting the setting device and pressing the setting device and pressing the button is much shorter than in the conventional method. These techniques make the plate cylinder register adjustment work more efficient'? : You can measure and improve the efficiency of printing work.

In addition, in this embodiment, the required travel amount of the plate cylinder is set in the setters 13 and 25, but the present invention is not limited to this, and for example, the final arrival position may also be set. good.

In this case, the arithmetic units 14 and 26 of the above-mentioned embodiment are simply replaced with gate circuits It, and the rest is the same.

[Brief explanation of the drawing]

The first bacterium is a Td diagram showing the schematic configuration of a conventional register adjustment device.
FIG. 2 is an enlarged front view of the display section of FIG. 1, and FIG. 6 shows one embodiment of the present invention. It is an explanatory view showing one part of the schematic structure. 1. Operation panel, 2. Control unit, 4. Plate cylinder, 6.
・5'+1'l adjustment overnight (second), 7 ・Adjust -3
(1st), +1.12 digital display. 13.25... Sethimeki

Claims (1)

[Claims] The first g-adjustment, which rotates the plate cylinder in the rotational direction, is adjusted by -3°, and the second adjustment, which moves the plate cylinder in the axial direction. A detection mechanism that constantly detects the detected value, a display mechanism that displays the detected value as a digital value, a setting mechanism that sets the required rotational or axial direction movement of the first plate cylinder from the reference position, and a setting mechanism that sets the detected value as the set value. We engineered the control circuit that drives each adjustment to match (
A digital command register adjustment device for a printing press, characterized in that: