JPH0459141B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an ink amount adjusting device in a printing press.

Generally, in a multicolor printing press, the amount of ink required for each printing plate differs, so it is necessary to adjust the amount of ink for each ink fountain. Further, since the amount of ink required for each ink fountain differs depending on the range of the printing plate, it is necessary to adjust the amount of ink for each ink key in the ink key group.

Conventionally, some of these ink amount adjusting devices are capable of adjusting the opening degree of each ink key for all ink fountains. This includes an ink fountain selection button corresponding to each ink fountain on the operation panel,
An individual adjustment button, an ink key selection button, an overall adjustment button, etc. are provided corresponding to each ink key in the ink key group, and when one of the ink fountains is selected by the ink fountain selection button, the individual adjustment button is operated. At this time, the opening degree of the ink key corresponding to the operated individual adjustment button among the ink key group of the selected ink fountain is adjusted, and when the global adjustment button is operated, the opening degree of the ink key corresponding to the ink key group of the selected ink fountain is adjusted. The opening degrees of all the ink keys selected by the ink key selection button are uniformly adjusted.

Therefore, if you select one or more ink keys from a group of ink keys using the ink key selection button in advance, when the overall adjustment button is operated, the opening degrees of all selected ink keys will be adjusted. It has the advantage that it can be adjusted uniformly. However, this is because the ink key whose opening is adjusted by the overall adjustment button is common to all ink fountains, so the ink key adjusted by the operation of the overall adjustment button is different for each ink fountain. , the ink key selection button must be operated every time the ink fountain selection button is operated.

An object of the present invention is to provide an ink amount adjusting device that can efficiently set the opening degree of an ink key for each of a plurality of ink fountains of a printing press.

Therefore, in the present invention, the operation unit includes an ink fountain selection button for selecting one of a plurality of ink fountains, an ink key selection button for selecting one or more ink keys from an ink key group, and an ink key for each of the ink key groups. An individual adjustment command button and an overall adjustment command button are respectively provided corresponding to the ink fountain selection button.
A plurality of storage units are provided for each ink fountain to store the number of the ink key selected by the ink key selection button, and when any ink fountain is selected by operating the ink fountain selection button, When the ink key selection button is operated, the ink key number input by the operation of the ink key selection button is stored in the storage section specified by the ink fountain selection button, and the ink fountain selection button is When any of the individual adjustment command buttons is operated in a state where any ink fountain is selected by operation, the button corresponding to the operated individual adjustment command button among the ink keys of the selected ink fountain When the ink key adjustment means is activated and the overall adjustment command button is operated, the ink key corresponding to the number in the storage section specified by the ink fountain selection button among the ink key group of the selected ink fountain is adjusted. By operating the means, it is intended to achieve the above object.

Hereinafter, one embodiment of the present invention will be described based on the drawings.

FIG. 1 shows the printing press of this embodiment. The printing machine includes a plurality of printing units 1A to 1 that perform printing processing in black, indigo, red, and yellow, respectively, from the front stage.
It is composed of D. Each printing unit 1A~1
D is provided with printing devices 2 ₁ to _{2 8} for the upper and lower surfaces of the printed matter P, respectively. Each printing device 2 ₁
As shown in _FIG . 2, an ink fountain 4 is formed on the circumferential surface of an ink fountain roller 3 which is rotationally driven by, for example, a DC motor, and the ink stored in the ink fountain 4 is discharged from the ink fountain 4 as shown in FIG. It is adapted to be guided out while being attached to the circumferential surface of the roller 3. The ink drawn out by the ink dispenser roller 3 is transferred to the kneading roller 7 via the ink transfer roller 6 provided at the tip of the swinging arm 5. For the kneading roller 7, there are a forming roller 8, a plate cylinder 9 on which the printing plate is attached, and a blanket cylinder 1 in contact with the printed matter P.
0 are arranged so as to rotate while sliding one after another. Here, when the number of rotations of the plate cylinder 9 is set to No,
The number of oscillations per unit time of the ink transfer roller 6 is
KNo (K is a constant) is set in advance. Therefore, when the ink dispenser roller 3 rotates,
The ink stored in the ink fountain 4 is drawn out while being adhered to the circumferential surface of the ink dispenser roller 3, and then transferred to the kneading roller 7 at regular intervals via the ink transfer roller 6, and is then further kneaded. roller 7
From there, it is transferred to the blanket cylinder 10 via the applicator roller 8 and the printing plate mounted on the plate cylinder 9. As a result, the printed matter P in contact with the blanket cylinder 10 is printed in a predetermined color.

FIGS. 3 and 4 show each of the printing devices 2 ₁ to 2 ₈
4 shows the specific structure of the ink fountain 4. The ink fountain 4 includes a plurality of inclined ink keys 1 along the longitudinal direction of the ink fountain roller 3.
1 ₁ to 11 _o are arranged in parallel. Each ink key 11
₁ to 11 _o are configured such that their lower ends can approach and separate from the circumferential surface of the ink fountain roller 3, with the upper end side serving as a fulcrum;
Moreover, the opening degree of the gap 12 therebetween can be adjusted by ink key adjusting devices 13 ₁ to 13 _o . Each of the ink key adjusting devices 13 ₁ to 13 _o includes a motor 14 ₁ to 14 _o , a rotating cylinder 15 ₁ to 15 _o rotated by the motor 14 ₁ to 14 _o , and a rotating cylinder 15 ₁ to 15 o. It is composed of reciprocating rods 16 1 to 16 _o that move back and forth as the ink keys 11 ₁ to 11 o move toward and away from the circumferential surface of the ink dispenser roller 3 as the ink keys _{11 1} to 11 _{o move toward and away from the circumference of the ink dispenser roller 3} .

FIG. 5 shows the ink key 11 of each ink fountain 4.
A device for setting the opening degree _{from 1} to 11 _degrees is shown. The device connects the operating unit 2 via the CPU (Central Processing Unit) 21 data bus, address bus, etc.
2, an I/O unit 23, a ROM (read only memory) 24 and a RAM (random access memory) 25 are connected. As shown in FIG. 6, the operation section 22 has an ink fountain 8 corresponding to each ink fountain 4 of each of the printing devices 2 ₁ to 2 ₈ .
ink fountain selection buttons 26, individual adjustment command buttons 271 _{to 27o} corresponding to the respective ink key adjustment devices ₁₃₁ to _13o , overall adjustment command button 28, numeric keypad 29 as an ink key selection button, preset key 30, and set key. 31, opening indicators 32 ₁ to 32 _o and setting display lamps 33 display the opening degrees of the ink keys 11 ₁ to 11 _o in a bar graph format corresponding to the individual adjustment command buttons 27 ₁ to 27 _o . ₁
~33 _o are provided respectively. Each of the individual adjustment command buttons 27 ₁ to 27 _o and the overall adjustment command button 2
8 includes an increase command button "U" which commands the ink key adjustment devices 13 to _13o to increase the opening degrees of the ink keys 11 ₁ to 11 _o , and a decrease command button "D" which commands the ink key adjustment devices 13 to 13 o to decrease the opening degrees. Each is included. Further, the I/O unit 23 includes:
Ink key adjusting devices 13 ₁ to 13 _o of each of the printing devices 2 ₁ to 2 ₈ are connected. Also,
The ROM 24 stores a processing program for executing predetermined processing based on operations of various buttons and keys of the operation section 22. Furthermore, the above
In the RAM 25, flags F ₁ to _{F 8} are set respectively when the ink fountain selection button 26 is operated.
Setting memories M ₁ to _{M 8} and the like are allocated to predetermined addresses as storage units for storing the numbers of ink keys 11 ₁ to 11 _o set for each ink fountain 4.

Next, the operation of this embodiment will be explained. First, for each ink fountain 4 of each printing device 2 ₁ to 2 ₈ , the ink keys 11 ₁ to 11 _o whose opening degree is adjusted when the overall adjustment command button 28 is operated are set in advance. In this setting operation, first, the user presses the ink fountain selection button 26 corresponding to one of the ink fountains 4 to be set, for example, the "" button for the ink fountain 4 of the printing device ₂₁ . Then, the flag _F1 corresponding to that "" button is set. Subsequently, after pressing the preset key 30, among the ink keys 11 ₁ to 11 _o of the selected ink fountain 4, the ink keys 11 ₁ to 1 whose opening degree is adjusted by operating the overall adjustment command button 28 are pressed.
1 Select _o and press the selected ink key 11 ₁ ~ 1
1 Enter _{the o} number using the numeric keypad 29. For example, ink keys 11 ₁ , 11 ₂ , 11 ₃ , 11 ₂₁ ,
If 11 ₂₂ is selected, the "1" key, set key 31, "2" key, set key 31, "3"
key, set key 31, "2" and "1" keys, set key 31, "2" and "2" keys, and set key 31 in order. Then, the set flag
In the setting memory M ₁ corresponding to F ₁ , 1, 2, 3, 21,
22 numbers are stored in sequence, and the setting display lamps 31 ₁ , 31 ₂ , 31 ₃ , corresponding to the numbers are stored in sequence.
31 ₂₁ and 31 ₂₂ are displayed respectively, and printing device 2 ₁
The setting operation for is completed. At this time, the flag _F1 is reset upon completion of the setting operation.
In this way, when setting operations are performed for the other printing devices 2 ₂ to 2 ₈ , the ink amount adjustment operations for the ink fountains 4 of each printing device 2 ₂ to 2 ₈ are stored in the setting memories M ₂ to _{M 8} . , when the overall adjustment command button 28 is operated, the ink key 11 ₁ whose opening is adjusted
~11 _o numbers are now stored.

Now, here, each ink key 11 1 to 1 constituting each ink fountain ₄ of each printing device 2 ₁ to 2 ₈
The amount of ink of 1 _o is adjusted based on the pattern area ratio for each ink key determined in advance from the printing plate. In this adjustment operation, first, press the ink fountain selection button 26 corresponding to one of the ink fountains 4 to be adjusted;
For example, for ink fountain 4 of printing device 2 ₁ , ""
Press the button. Then _, the flag F ₁ corresponding to the "" button is set, and then the number ( ₁ , 2,
3, 21, 22) are read out, and the setting display lamps 33 ₁ , 33 ₂ , 33 ₃ , 33 ₂₁ , corresponding to each number are read out.
33 _{and 22} are lit respectively. After this, the opening degrees of the ink keys 11 ₁ to 11 _o are individually adjusted using the button 27 ₁ to 11 o.
Adjustment is made by operating 27 _o and the overall adjustment command button 28. Now, for example, when the individual adjustment command button 27 ₁ is operated, the ink key adjustment device corresponding to the operated individual adjustment command button 27 ₁ is set for the ink fountain 4 of the printing device 2 ₁ selected by the flag F ₁ . 13 An activation command is issued at ₁ . In this case, if the operated individual adjustment command button 27 ₁ is the increase command button "U", the ink key adjustment device 13 ₁ moves the ink key 11 ₁ in the direction of opening the opened position, and the operated individual adjustment command button 27 If ₁ is the decrease command button "D", the opening of the ink key ₁₁₁ is operated in the direction of closing. At the same time, the opening degree of the ink key 11 ₁ is displayed on the opening degree display 32 ₁ . In this way, even when the other individual adjustment command buttons 27 ₂ to 27 _o are operated, the corresponding ink key adjustment device 13
₂ to 13 _o , the ink keys 11 ₂ to 1
1 The degree of intervention of _o is adjusted individually.

On the other hand, when the overall adjustment command button 28 is operated, the numbers (1, 2, 3, 21, 22) stored in the setting memory M ₁ corresponding to the flag F ₁ are read out, and the corresponding numbers are read out. Ink key adjustment device 13 ₁ ,
Operation commands are issued at 13 ₂ , 13 ₃ , 13 ₂₁ , and 13 ₂₂ . In this case, these ink key adjustment devices 1
3 ₁ , 13 ₂ , 13 ₃ , 13 ₂₁ , 13 ₂₂ are ink keys 11 ₁ , 11 ₂ , 11 ₃ , 11 ₂₁ , 1 if the operated overall adjustment command button 28 is the increase command button “U”
1 ₂₂ in the direction of opening at the same time, and if the operated overall adjustment command button 28 is the decrease command button "D", the ink keys 11 ₁ , 11 ₂ , 11 ₃ , 11 ₂₁ , 1
1 _{and 22} are respectively operated in the direction of closing.
Therefore, by first adjusting the opening degree of the ink key selected in advance by operating the overall adjustment command button 28, and then adjusting the opening degree of the other ink keys by using the individual adjustment command button, the ink key in the printing device ₂₁ can be adjusted. The opening degrees of 11 ₁ to 11 _o are efficiently adjusted based on the picture area ratio of each ink key.

In this way, the opening degrees of the ink keys 11 ₁ to 11 _o in the other printing devices 2 ₂ to 2 ₈ are determined based on the pattern area ratio for each ink key determined from the printing plates attached to the respective plate cylinders 9. adjust.

Therefore, according to this embodiment, each printing device 2 ₁ to
When the overall adjustment command button 28 is operated for every ₂₈ ink fountains 4, an ink key 11 ₁ whose opening is adjusted.
~11 _o numbers are selectively stored in the setting memories _M1 ~ _M8 , respectively, and printed on any of the printing devices ₂₁ ~ _28.
When the individual adjustment command buttons 27 ₁ to 27 _o are operated with the ink fountain 4 selected, the ink keys 11 ₁ to 27 o constituting the selected ink fountain 4 are pressed.
Of the 11 _o , the individual adjustment command button 27 ₁ ~
The opening degrees of the ink keys 11 to 11 _o corresponding to 27 _o are adjusted individually, and the overall adjustment command button 28
When is operated, the contents of one of the setting memories _M1 to _M8 corresponding to the selected ink fountain 4 are read out, and the ink key 11 corresponding to the contents is read out.
Since the opening degrees of ₁ to 11 _o are adjusted at the same time, by using the individual adjustment command buttons 27 ₁ to 27 _o in combination with the overall adjustment command button 28, the amount of ink in each printing device 2 ₁ to _{2 8} can be adjusted to the pattern for each ink key. It can be efficiently adjusted based on the area ratio.

Also, by operating the individual adjustment command buttons 27 ₁ to 27 _o and the overall adjustment command button 28, the ink keys 11 ₁ to 1
When adjusting the opening of 1 _o , which printing device 2 ₁
Since it is possible to select the ink fountain 4 from ₂ to 28 using the ink fountain selection button 26, the individual adjustment command button 27 can be used for each printing device ₂₁ to ₂₈ .
₁ to 27 _o and the overall adjustment command button 28 are not required.

Furthermore, arbitrary numbers of the ink keys 11 ₁ to 11 _o are stored in the setting memories M ₁ to _{M 8} using the numeric keypad 29, preset key 30, and set key 31, and when the ink fountain selection button 26 is operated, the selected ink fountain is selected. The contents of the setting memories M ₁ to _{M 8} corresponding to the buttons 26 are read out, and the setting display lamps 33 ₁ to 33 _o corresponding to the contents are lit, so that when each ink key 11 ₁ to 11 _o is opened, When the overall adjustment command button 28 is operated during the degree adjustment operation, it is possible to confirm which number of ink keys 11 ₁ to 11 _o the opening degree is to be adjusted.

As described above, according to the present invention, it is possible to provide an ink amount adjusting device that can efficiently adjust the opening degree of an ink key for each of a plurality of ink fountains of a printing press.

[Brief explanation of the drawing]

The figures show one embodiment of the present invention, in which Fig. 1 is an explanatory diagram showing an overview of a printing system, Fig. 2 is an explanatory diagram showing the printing device, and Fig. 3 is a perspective view showing the configuration of an ink fountain. , FIG. 4 is a sectional view thereof, FIG. 5 is an overall circuit diagram, and FIG. 6 is a front view showing the operating section. 11 ₁ ~ 11 _o ... Ink key, 13 ₁ ~ 13 _o ...
...Ink amount adjusting means, 21...As a control section
CPU, 22...Operation unit, ₂₇₁ to _27o ...Individual adjustment command button, 28...Overall adjustment command button, 29...Numeric keypad as ink key selection button.

Claims (1)

[Scope of Claims] 1. A plurality of ink fountains, each ink fountain having a group of ink keys arranged in parallel in the longitudinal direction of the ink fountain roller, each configured to be able to move toward and away from the outer peripheral surface of the ink fountain roller. In addition, an ink amount adjusting device for a printing press is provided with an adjusting means for adjusting the opening degree of the ink key and the ink dispenser roller for each ink key, and an ink fountain selection button for selecting one of the ink fountains; an operation unit having an ink key selection button for selecting one or more ink keys from the ink key group, and a plurality of individual adjustment command buttons and overall adjustment command buttons provided corresponding to each ink key of the ink key group; a plurality of storage units which store the number of the ink key selected by the ink fountain selection button and which is selected by the ink key selection button for each ink fountain; When the ink key selection button is operated with an ink fountain selected, the ink key number input by the operation of the ink key selection button is stored in the storage section selected by the ink fountain selection button. means for causing an ink key to be operated among the ink keys of the selected ink fountain when any of the individual adjustment command buttons is operated in a state where any of the ink fountains is selected by operating the ink fountain selection button; means for changing the opening degree of an ink key corresponding to the individual adjustment command button that has been selected in proportion to the amount of operation of the individual adjustment command button, and one of the ink fountains is selected by the operation of the ink fountain selection button. In this state, when the overall adjustment command button is operated, the number of the storage section selected by the ink fountain selection button is read out, and the opening degree of the ink key corresponding to each number is determined by the operation amount of the overall adjustment command button. 1. An ink amount adjusting device for a printing press, comprising: a control unit having means for simultaneously changing the amount in proportion to the amount of ink in the printing press;