JP4275140B2 - Printing system and color adjusting device - Google Patents

Description

  The present invention relates to a printing system including a plurality of printing machines and a plurality of color adjustment apparatuses.

In a printing press such as a sheet-fed printing press or a rotary printing press, an ink fountain is adjusted by adjusting a gap amount (hereinafter referred to as “ink key opening”) between an ink key and an ink base roller provided in an ink supply device. The amount of ink supplied to the printing cylinder is adjusted.
Conventionally, the ink supply amount has been adjusted by an operator visually checking the color tone between the print sample and the actual printed paper. In recent years, an ink supply amount automatic setting device capable of automatically adjusting the ink key opening degree has been developed (Patent Document 1, etc.), and it is easy to reduce the burden on the operator and ensure the quantitativeness.
In the technique of Patent Document 1, an actual color mixture halftone density for each key zone of a print sheet is measured by a line sensor type IRGB densitometer provided on the travel line of the print sheet, and each of the color mixture halftone densities is measured based on the measurement result of the actual color mixture halftone density. The actual monochromatic halftone density of the ink color is detected, and feedback is performed so as to adjust the opening degree of the ink key corresponding to each key zone so that the actual monochromatic halftone density becomes the target monochromatic halftone density.
JP 2004-106523 A

By the way, in a rotary printing machine or the like for printing newspapers, since there are a large number of pages on the paper to be printed, it is common to print a large amount using a plurality of (for example, five) rotary printing machines at the same time. Has been done. When printing is performed using such a large number of rotary printing presses, if an attempt is made to apply the automatic adjustment of the ink supply rate as described above, how efficiently the ink supply rate is notified to each rotary press. The problem arises.
Further, in a newspaper rotary press or the like, it is generally performed to change the number of rotary presses connected to the folding machine according to the number of printed pages or black and white / color printing. In such a case, the color adjustment is required to respond quickly to the connection change.
Such a problem is not limited to the above-described rotary printing press, but has also occurred in various printing presses.

  The present invention has been made to solve the above problems, and provides a printing system and a color adjustment apparatus capable of promptly notifying a plurality of printing machines of a printing control amount such as an ink supply amount. Objective.

In order to solve the above problems, the present invention employs the following means.
The present invention includes a plurality of printing machines and a plurality of color adjustment apparatuses connected to the plurality of printing machines via a network, and the color adjustment apparatus performs printing by each of the printing machines under its control. Before the start of printing, a communication line connection request is output to each of the printing presses, and after the communication line is established, control commands relating to color adjustment of the printing presses are individually transmitted to the printing presses. Provided is a printing system for outputting a request for disconnecting the communication line to each of the printing machines after printing by each of the printing machines is completed .

According to the present invention, a plurality of printing presses and a plurality of color adjusting devices are connected via a network, and each color adjusting device is connected to a printing press under its control only with the color of the printing press. Since the control command related to the adjustment is transmitted, it is possible to efficiently transmit information only to the related printing press. Furthermore, each color adjustment device is connected not only to the printing machine under its own management but also to other printing machines via the network. For example, when the printing machine under its own management is changed However, it becomes possible to quickly follow the change. Thereby, for example, even when the connection state is changed, it is possible to quickly follow the change, and it is possible to transmit a control command relating to color adjustment only to the related printing press.
In addition, the color adjustment apparatus connects a line with each printing machine and transmits a control command related to color adjustment in a situation where the printing machine is placed under its own management. As a result, in a situation where the printing press is not under management, line resources can be provided to other devices by opening the line.

Furthermore, according to the present invention, since the transmission unit of the control command related to the color adjustment is the unit of the printing press, the color adjustment of the plurality of printing units provided in each printing press can be performed substantially simultaneously. In other words, since color adjustment can be performed collectively for each printing press, it is possible to avoid a gradual change in the color tone of the printed material and to maintain stable quality. In addition, it is possible to stabilize the front and back quality of the printer that performs both front and back printing. In addition, it is possible to increase the efficiency of data transmission compared to handling a plurality of printing presses as one unit, so that color adjustment can be performed quickly. Furthermore, since it is not necessary for the printing press to receive information irrelevant to itself (for example, a control command related to color adjustment related to another printing press), the burden of data processing can be reduced.
The “control command related to color adjustment” refers to, for example, information related to the supply amount of dampening water, such as the ink key opening, which is information related to the supply amount of ink, and the set water amount for each spray dampening nozzle.

  The printing system of the present invention may include a plurality of folding machines, and the color adjustment device is provided corresponding to each of the folding machines, and is connected to the folding machine corresponding to itself. The printing press may be handled under its own management.

  According to such a configuration, each color adjusting device is provided corresponding to each folding machine, and all printing presses connected to the folding machine corresponding to itself are handled under its own management. . Accordingly, it is possible to freely switch the printing press under management according to the connection condition.

  The printing system of the present invention may include a remote operation device provided corresponding to each of the color adjustment devices, and the color adjustment device assigns a ratio related to the color adjustment from the remote operation device corresponding to the color adjustment device. When a print control command is output, transmission of the control command to each printing press may be stopped.

  According to such a configuration, when the interrupt control command related to color adjustment is output from the remote operation device, the color adjustment device stops transmission of the control command to the printing press. Only an interrupt control command from the remote operation device is transmitted, and color adjustment based on the control command from the remote operation device is performed. As a result, when the remote operation device is operated by the operator and an instruction for color adjustment is issued by the operator himself, it is possible to preferentially adopt the color adjustment by the operator.

  The printing system of the present invention may include a remote operation device provided corresponding to each of the color adjustment devices, and the remote operation device receives an interrupt control command related to the color adjustment from an operator. The interrupt control command is transmitted to the corresponding printing machine, and the printing machine receives the control command related to the color adjustment from both the remote operation device and the color adjustment device. The interrupt control command relating to color adjustment received from the apparatus may be preferentially adopted.

  According to such a configuration, when the printing press receives a control command related to color adjustment from both the color adjustment device and the remote operation device, the printing press issues an interrupt control command that is a control command related to color adjustment from the remote operation device. Since priority is adopted, color adjustment based on an interrupt control command from the remote control device is performed. Thereby, the color tone of printed matter can be finished to the color tone according to the operator's taste.

  In the printing system of the present invention, the printing press may include an operation panel for receiving an interrupt control command relating to the color adjustment from an operator, and the color adjustment device may assign an assignment relating to color adjustment from the operation panel. When a printing control command is output to a printing press, transmission of the control command to the printing press may be stopped.

  According to such a configuration, when an interrupt control command related to color adjustment is output from the operation panel to a printing press under its control, the color adjustment device outputs a control command to the printing press. Since the transmission is stopped, only the interrupt control command from the operation panel is transmitted to the printing press, and the color adjustment based on the interrupt control command from the operation panel is performed. Accordingly, when the operation panel is operated by the operator and a color adjustment instruction is issued by the operator himself, the color adjustment by the operator can be preferentially adopted.

  In the printing system of the present invention, the printing press may include an operation panel for receiving an interrupt control command related to the color adjustment from an operator, and has received the interrupt control command related to the color adjustment from the operation panel. In this case, the interrupt control command from the operation panel may be preferentially adopted.

  According to such a configuration, the printing press is provided with the operation panel that receives the interrupt control command related to the color adjustment from the operator, so that the operator can freely operate the color adjustment instruction by operating the operation panel. Can be given. In addition, since the interrupt control command relating to color adjustment received by the operation panel has priority over the interrupt control command from the above-described color adjustment device, it is possible to obtain a color tone according to the preference of the operator.

The present invention is a color adjustment apparatus connected to a plurality of the printing presses via a network, and before printing by each of the printing presses under its control among the printing presses is started. The communication line connection request is output to each of the printing presses, and after the communication line is established, control commands relating to the color adjustment of the printing presses are individually transmitted , and printing by each of the printing presses is performed. Provided is a color adjustment device that outputs a request for disconnecting the communication line to each of the printing presses after completion .

  The above color adjustment device is provided corresponding to a folding machine to which a plurality of printing presses are connected, and the plurality of printing presses connected to the printing press are handled under its own management. Also good.

  According to the present invention, there is an effect that a control command such as an ink supply amount can be promptly notified to a plurality of printing machines.

Hereinafter, an embodiment when the printing system of the present invention is applied to a printing system used for newspaper printing will be described with reference to the drawings.
FIG. 1 is a diagram illustrating a schematic configuration of a printing system according to the present embodiment. As shown in this figure, the printing system 1 has a plurality of rotary printing presses 2a to 2j (hereinafter, in the case where the rotary printing presses are not distinguished, they are simply denoted by reference numeral "2", and are expressed by distinguishing each rotary printing press. In this case, reference numerals “2a”, “2b”, etc. are attached. Hereinafter, the same applies to the other components.), A plurality of turn bar rows 3a, 3b, and a plurality of folding machines 4a, 4b ing. Further, the printing system 1 includes color adjusting devices 50a and 50b that are provided corresponding to the respective folding machines 4a and 4b and control the rotary printing press 2 connected to the folding machines 4a and 4b under control. Yes. Remote operation consoles 51a and 51b are provided corresponding to the color adjustment devices 50a and 50b, respectively. The remote operation consoles 51a and 51b are for an operator to input a control command related to color adjustment, for example.

  In such a printing system 1, the rotary printing press 2 connected to each folding machine 4a, 4b is configured to be arbitrarily selectable depending on the printing contents. For example, in FIG. 1, as one mode of connection, the rotary printing presses 2a to 2e are connected to the folding machine 4a, and the rotary printing presses 2f to 2j are connected to the folding machine 4b. In addition, about a connection system, the shaft drive type which drives each rotary printing machine, a folding machine, etc. through a line shaft by synchronizing with a main drive motor may be used, or it is not the above-mentioned line shaft but each separate electric motor. It may be a shaftless type that is driven to operate in synchronization with each other.

  In the printing system 1, each rotary printing press 2 includes a paper feeding device 6 and a printing unit 7. The paper feeding device 6 includes, for example, three pairs of arms and a paper splicing device that rotatably hold a web wound with the web W wound in a roll shape. The printing unit 7 has a structure in which a plurality of printing units 8 are stacked in a tower shape. The number of printing units 8 included in the printing unit 7 is determined according to the color to be printed. For example, when performing double-sided four-color printing, it is necessary to print four colors consisting of C (cyan), M (magenta), Y (yellow), and K (black) on both sides of the web W. The printing unit 7 includes a total of eight printing units 8. In addition, when performing two-sided two-color printing, it is necessary to print two colors consisting of K (black) and another color on both the front and back sides of the web W, so the printing unit 7 has a total of four printing units 8. Will be provided.

  FIG. 2 is a schematic side view showing a schematic configuration of two printing units arranged to face each other. As shown in FIG. 2, the printing unit 8 is disposed opposite to an ink supply device 11 that supplies ink, a dampening device (not shown) that supplies dampening water, and the ink supply device 11 and dampening device. A plate cylinder 13 and a rubber cylinder (blanket cylinder) 14 disposed opposite to the plate cylinder 13 are provided.

Hereafter, each part with which the printing unit 8 is provided is demonstrated with reference to FIG. 3 thru | or FIG.
FIGS. 3 to 6 are views showing the ink supply device 11, FIG. 3 is a schematic side view showing a configuration relating to ink supply from the ink supply device to the plate cylinder, and FIG. 4 is a relationship between the web and the ink key unit. FIG. 5 is a diagram showing a schematic configuration of the ink key unit, and FIG. 6 is a diagram showing a schematic configuration of an ink key opening adjusting device for adjusting the ink key opening.
As shown in FIG. 3, the ink supply device 11 has an ink key unit 20, an ink fountain 29, an ink base roller 21, an ink transfer roller 22, an ink kneading roller group 23, a swing roller 24, and a plate cylinder 13 during printing. Are provided with three inking rollers 25 that come into contact with each other.

  The ink key unit 20 is provided according to the number of pages printed on the web W, for example. In this embodiment, the rotary press system 1 is for newspaper printing. Therefore, as shown in FIG. 4, the web W has a print width of four pages. Therefore, the ink supply device 11 includes four ink key units 20 arranged in parallel along the rotation axis direction of the ink base roller 21.

  Each ink key unit 20 includes eight ink keys 26a to 26h as shown in FIG. The adjacent ink keys 26a to 26h, and the end ink key 26a and the side plate 27 are in sliding contact with each other. In addition, as shown in FIG. 6, the ink keys 26 a to 26 h in each ink unit 20 are configured to be able to swing independently about the fulcrum shaft 28. As a result, the gaps between the ink keys 26a to 26h and the peripheral surface of the ink base roller 21, in other words, the ink key opening can be individually adjusted. Below each ink key 26, an ink key opening degree adjusting device 30 which is a mechanism for adjusting the ink key opening degree is provided.

  The ink key opening adjustment device 30 includes a push-up fitting 31 that contacts the lower surface of the tip of each ink key 26, a pusher 32 that abuts the tip of the push-up fitting 31 and expands and contracts the push-up fitting 31 by extending and contracting in the front-rear direction. A motor 33 is provided as an actuator connected so as to move the pusher 32 forward or backward by driving in rotation. The motor 33 is, for example, a stepping motor. The motor 33 is electrically connected to a local CPU 38 described later. The local CPU 38 drives the motor 33 by outputting an excitation signal to the motor 33 based on a control command (corresponding to “column adjustment data” described later) from the color adjustment devices 50a and 50b shown in FIG. The ink key opening degree is controlled independently for each ink key.

Further, the rotation shaft of the motor 33 is connected to a potentiometer 34 that detects the rotation angle position of the rotation shaft so that drive transmission is possible via a gear. The rotation angle of the motor 33 detected by the potentiometer 34 corresponds to the forward / backward position of the pusher 32, that is, the swing angle of each ink key 26, whereby the motor opening of each ink key 26 can be detected. The potentiometer 34 is electrically connected to the local CPU 38. Thereby, the detection result by the potentiometer 34 is transferred to the local CPU 38.
In the ink key opening adjustment device 30 configured as described above, each motor 33 is independently driven by the local CPU 38. In accordance with this driving state, the pusher 32 expands and contracts in the front-rear direction, and the tip of the push-up bracket 31 swings up and down. Thereby, each ink key opening degree is adjusted individually, and a suitable ink amount is transferred from the ink fountain to the peripheral surface of the ink source roller 21.

Next, the dampening device, the plate cylinder 13 and the rubber cylinder 14 included in the printing unit according to this embodiment shown in FIG. 2 will be described with reference to FIG. FIG. 7 is a schematic side view showing a configuration relating to ink supply from the ink form roller to the rubber cylinder.
As shown in FIG. 7, the dampening device 38 includes a spray dampener 39 having a plurality of rollers such as a swimsuit roller 40, a water rider roller 41, a water swinging roller 42, and a plurality of spray nozzles corresponding to printing pages. The amount of dampening water is adjusted and supplied individually for each printed page. Further, by controlling the intermittent spraying and the spraying time, the water amount adjustment according to the printing speed and the pattern is realized.

  The plate cylinder 13 has a cylindrical shape so that a printing plate on which a printing image is formed is wound around the outer periphery. A printing plate is created and exchanged for each image to be printed. The plate cylinder 13 is in a state in which an angular range of a part of the outer periphery is notched in the axial direction, and at this position 45, a plate head that is the upstream end of the printing plate and a plate bottom that is the downstream end of the printing plate. A plate clamping device (not shown) for gripping and fixing the plate is provided.

  The rubber cylinder 14 receives the ink on the printing plate of the plate cylinder 13 and transfers the ink to the web W passing between the other rubber cylinders 14 opposed to each other as shown in FIG. A rubber is wound around the outer periphery of the rubber cylinder 14 as a blanket. As shown in FIG. 7, the rubber cylinder 14 is in a state where a part of the angular range of the outer periphery is cut out in the axial direction, and grips and fixes the upstream end and the downstream end of the rubber at this position 46. A rubber fastening device (not shown) is provided. The rubber cylinder 14 can be separated (barrel removed) from the plate cylinder 13 and the opposed rubber cylinder 14 when printing is not performed.

  In the rotary printing press 2 including various components as described above, the web W fed from the paper feeding device 6 is supplied to the printing unit 7 as shown in FIG. In the printing unit 7, as shown in FIGS. 3 and 6, in each printing unit 8, the ink key opening degree of the ink supply device 11 is adjusted to an appropriate opening degree by the ink key opening degree adjusting device 30, so that an appropriate amount is obtained. Is supplied from the ink fountain 29 to the peripheral surface of the ink base roller 21. As shown in FIG. 3, the ink supplied to the ink base roller 21 is supplied to the ink kneading roller group 23 via the ink transfer roller 22, and is appropriately kneaded while passing the peripheral surface of the ink kneading roller group 23. It is done. Subsequently, an extreme change in the ink film thickness with respect to the ink film thickness at the boundary between the key zones is alleviated by the ink swing roller 24, and then supplied to the plate surface of the plate cylinder 13 through the ink form roller 25. The ink adhering to the plate surface 13 is transferred to the web W as a pattern through the rubber cylinder 14 as shown in FIGS.

In this way, as the web W passes between the opposed rubber cylinders 15 of each printing unit 8 as shown in FIG. 2, images are transferred from the rubber cylinder 14 to the front and back surfaces, respectively. Four or two colors are printed on the front and back surfaces. Then, the web W on which double-sided printing has been performed is supplied to the connected turn bar rows 3 as shown in FIG.
The turn bar row unit 3 includes a large number of turn bars, and is configured to change the travel route of the web W from each rotary printing press 2 and change the overlapping order. Thus, each web W discharged from the turn bar row portion 3 is supplied to the folding machine 4 to be connected. In the folding machine 4, after a plurality of webs W sent from the turn bar row unit 3 are overlapped, they are vertically folded, vertically cut, horizontally folded, transversely cut, etc., to be a desired folded book and discharged.

In the printing system 1, between the rotary printing press 2 and the turn bar row unit 3, the mixed color density on each paper surface printed by the rotary printing press 2 (hereinafter referred to as “actual mixed color halftone density”). An IRGB densitometer 10 is provided for each rotary printing press 2. Specifically, since the IRGB densitometers 10 are arranged on both the front and back sides so as to sandwich the conveyance path of the web W, in the printing system 1 according to the present embodiment, a total of 20 IRGB densitometers 10 are arranged. Will be.
The IRGB densitometer 10 is a measuring instrument that measures the reflected light of the ink transferred onto the web W as the reflection density of I (infrared light), R (red), G (green), and B (blue). In addition to measuring the actual mixed color halftone density of the entire width of the web W, it is also possible to measure the actual mixed color halftone density at an arbitrary position.

  As shown in FIG. 8, the sensor group 52 including the above IRGB densitometers 10 is connected to the color adjusting devices 50a and 50b via a network. The color adjusting devices 50a and 50b detect the actual monochromatic halftone density of each ink color based on the actual mixed color halftone density for each ink key on each paper surface measured by the IRGB densitometer 10, and the actual monochromatic halftone density and the target monochromatic halftone density. To create color adjustment data for adjusting the ink supply amount corresponding to each rotary printing press 2 under its control, and control these color adjustment data for each rotary printing press 2 The automatic color adjustment of each rotary printing press 2 is realized by individually outputting to the apparatus. By repeating such processing at regular time intervals, color adjustment feedback control is realized.

Next, a control system for controlling the ink supply amount in the above-described rotary printing press 2 will be described in more detail with reference to the drawings. FIG. 8 is a diagram illustrating a network configuration of a control system that controls the rotary printing press 2.
As shown in FIG. 8, a sensor group 52 including IRGB densitometers 10 and the like provided in each of the rotary printing presses 2a to 2j includes a color adjusting device 50a via a data transmission medium (hereinafter referred to as “network”). , 50b, respectively. Further, each of the color adjustment devices 50a and 50b is connected to the control devices 35a to 35j included in each of the rotary printing presses 2a to 2j via the network 100. The control devices 35a to 35j mainly control the opening degree of each ink key included in the rotary printing press 2. For example, in the control device 35 corresponding to the rotary printing press 2 including eight printing units 8. Ability to control the opening of 256 ink keys (the number of printing units 8 * the number of ink units 20 provided in each printing unit * the number of ink keys 26 provided in each ink unit 20 = 8 * 4 * 8 = 256) It has.
Furthermore, remote consoles 51a and 51b are connected to the network 100 so that an operator can manually perform color adjustment and the like from a remote location.
As described above, in the printing system 1 according to the present embodiment, the color tone control devices 50a and 50b, the remote operation consoles 51a and 51b, and the network capable of bidirectional communication are constructed among all the control devices 35a to 35j. Has been. The network may be either wireless or wired, and examples include LAN and Ethernet (registered trademark).

In the printing system 1 having such a control system, first, when starting printing, information of the rotary printing press 2 under management is notified from the upper apparatus (not shown) to the color adjustment apparatuses 50a and 50b. Is done.
Here, each rotary printing press 2 belonging to the management of the color adjusting devices 50a and 50b is a rotary printing press connected to the folding machines 4a and 4b installed in pairs with the color adjusting devices 50a and 50b. . In the present embodiment, as shown in FIG. 1, since the rotary presses 2a to 2e are connected to the folding machine 4a corresponding to the color adjusting device 50a, the rotary press 2a is connected to the color adjusting device 50a. To 2e are notified. Similarly, information indicating that the rotary printing presses 2f to 2j are under management is notified to the color adjusting device 50b. This information may be notified from, for example, the remote control consoles 51a and 51b, or may be notified from an upper computer (not shown).

In this way, when the information of the rotary printing press 2 placed under its own management is notified, the color adjusting devices 50a and 50b hold the information by storing the information in a built-in memory or the like. To do.
Subsequently, the color adjusting devices 50a and 50b output a line connection request for data transmission to the control device 35 of each rotary printing press 2 that is notified that it is under its own management. In this embodiment, as shown in FIG. 9, the color adjustment device 50a outputs connection requests for the lines # 1 to # 5 to the control devices 35a to 35e of the rotary printing presses 2a to 2e, respectively, and performs color adjustment. The device 50b outputs connection requests for the lines # 6 to # 10 to the control devices 35f to 35j of the rotary printing presses 2f to 2j.

  In response to this request, the control devices 35a to 35j that have received this line connection request establish a 1: 5 communication line between the color adjustment device 50a and the control devices 35a to 35e. A 1: 5 communication line is established between the color adjustment device 50b and the control devices 35f to 35j. Thereby, the color adjustment device 50a can transmit data to the control devices 35a to 35e substantially simultaneously, and the control devices 35a to 35e transmit data to the color adjustment device 50a. It becomes possible to do. Similarly, the color adjustment device 50b can transmit data to the control devices 35f to 35j substantially simultaneously, and the control devices 35f to 35j transmit data to the color adjustment device 50b. It becomes possible.

Subsequently, the color adjustment devices 50a and 50b create transmission data (hereinafter referred to as “color adjustment data”) including a control command relating to the ink supply amount for each rotary printing press 2 placed under its own management. .
FIG. 10 is a diagram schematically showing the structure of color adjustment data transmitted to the rotary printing press 2 having eight printing units 8. In FIG. 10, the color adjustment data is composed of eight printing unit data. Each of the printing unit data is composed of four ink key unit data, and each of the ink key unit data is composed of eight column adjustment data. This column adjustment data is a control command relating to the ink key opening corresponding to each ink key 26.

  As described above, the color adjustment data for the rotary printing press 2 including the eight printing units 8 is composed of a total of 256 column adjustment data. In the color adjustment data, the address information of each printing unit 8 is added to each printing unit data, and the address information of each ink key unit 20 is added to each ink key unit data. In addition to the additional information described above, the color adjustment data includes various information that enables data communication including a start code, address data, a correction code, an end code, and the like.

  When the color adjustment devices 50a and 50b respectively create color adjustment data corresponding to each rotary printing press 2 under its own management, the color adjustment devices 50a and 50b individually transmit the color adjustment data to the control device 35 of each rotary printing press 2. . As a result, the color adjustment data is individually transmitted from the color adjustment device 50a to the control devices 35a to 35e via the lines # 1 to # 5. Similarly, the color adjustment device 50b transmits the lines # 6 to # 10. The color adjustment data is individually transmitted to each of the control devices 35f to 35j via.

Upon receipt of the color adjustment data having the data structure as shown in FIG. 10, each control device 35 controls each ink key adjustment device shown in FIG. 4 based on this color adjustment data, thereby setting each ink key opening degree. Adjust.
Specifically, as shown in FIG. 11, the control device 35 includes a remote CPU 36 that functions as an interface with the color adjustment device 50 and the like, and a printing unit control device 37 provided corresponding to each printing unit 8. ing. That is, in the case of the rotary printing press 2 including eight printing units 8, eight printing unit control devices 37 are provided. Each of the printing unit control devices 37 has jurisdiction over 32 local CPUs 38.

Specifically, the local CPU 38 is provided corresponding to each of the 32 ink keys provided in each printing unit 8. Each local CPU 38 controls the ink key opening of the corresponding ink key. Specifically, the ink key opening is adjusted to a suitable value by giving a control command to the motor 33 of the ink key adjusting device 30 provided corresponding to each of the ink keys 26a to 26h.
Further, an operation panel 60 for manually performing color adjustment in each rotary printing press 2 is connected to each control device 35. The operation panel 60 is connected to a remote CPU 36 included in each control device 35.

  In the control device 35 having such a configuration, when the remote CPU 36 receives the color adjustment data having the data structure shown in FIG. 10 from the color adjustment device 50, the remote CPU 36 sends the color adjustment data to each printing unit control device 37 in parallel. Output. Each local CPU 38 of the printing unit control device 37 takes only the ink key column adjustment data corresponding to itself among the color adjustment data, and outputs an excitation signal to each motor 33 based on the column adjustment data. As a result, each motor 33 is driven based on a control command from the color adjusting device 50, the ink key opening is adjusted to a suitable state, printing with a suitable ink amount is sequentially performed, and high quality is achieved. The printed matter is discharged from the folder 4.

Subsequently, when the operation panel 60 is operated by the operator while the color adjustment feedback control as described above is being performed automatically, a signal to notify the manual control is sent to the remote control device 35. The data is output to the CPU 36. Upon receiving the signal, the remote CPU 36 stops the control of the ink key opening based on the color adjustment data described above, and starts the control based on the ink key opening control command (interrupt control command) input from the operation panel 60. To do. At substantially the same time, a color adjustment data transmission stop request is transmitted to the color adjustment device 50 that is the transmission source of the color adjustment data. As a result, a transmission stop request is notified to the color adjustment apparatus 50 under its control through the network 100. The color adjusting device 50 that has received this transmission stop request stops data transmission to the control device 35 that is the transmission source of the transmission stop request.
By performing the above processing, the ink key opening degree control based on the interrupt control command given from the operation panel 60 is quickly shifted from the ink key opening degree control based on the color adjustment data from the color adjusting device 50. It becomes possible to do.

Similarly, when the remote console 51 is operated by an operator and an ink key opening degree control command (interrupt control command) is input to a predetermined rotary printing press 2, a signal indicating that manual control is to be notified. Is transmitted from the remote console 51 to the corresponding control device 35 of the rotary printing press 2 via the network 100.
When receiving the signal, the control device 35 stops the control of the ink key opening based on the color adjustment data described above, and starts the control based on the ink key opening control command transmitted from the remote console 51. At substantially the same time, a color adjustment data transmission stop request is transmitted to the color adjustment device 50 that is the transmission source of the color adjustment data. Thereby, the data transmission by the color adjusting device 50 is stopped, and the ink key opening degree is controlled based on the interrupt control command from the remote console 51.

Then, when the operation of the operation panel by the operator or the operation of the remote operation device such as the remote operation console 51 is completed, the control device 35 notifies the end of manual color adjustment from the operation console 60 or the remote operation console 51 described above. When accepted, the remote CPU 36 of the control device 35 transmits a transmission restart request to the color adjustment device 50 under its control. As a result, the transmission process of the color adjustment data by the color adjustment device 50 is resumed, and the control of the ink key opening based on the color adjustment data is resumed.
As described above, when printing is advanced while the color density and the like of the printed matter is always managed, when a predetermined number of prints are completed, this is notified from the host device or the like to the color adjustment device 50 via the network 100. Be notified.
The color adjustment device 50 that has received this print end notification terminates the color adjustment processing and disconnects the line connection with each control device 35 connected so far. As a result, the network resource is released to another communication device (not shown) until the next printing is started.

  Note that the line connection procedure is not limited to the above-described sequence based on the start and end of printing. For example, depending on the content of printing from the connection state between the printing machine and the folding machine during normal operation, When changing the combination of folding machines and setting the connection range, the printing range is determined before the printing starts, and it is determined which printing machine and folding machine are under control. Even if a communication line connection request is issued at the previous stage, and then the printing machine or folding machine is removed from the connection target and the target machine is after the end of printing, a sequence that outputs a communication line disconnection request may be adopted. good.

  Next, when printing a newspaper different from the above, the rotary printing press connected to the folding machine is changed according to the number and type of the newspaper. For example, as shown in FIG. 12, the rotary printing presses 2a to 2g are changed. Is connected to the folding machine 4a and the rotary printing presses 2h to 2g are connected to the folding machine 4b, the color adjustment means that the rotary printing presses 2a to 2g are under the control of the color adjustment device 50a. The device 50b is notified from the host device or the like that the rotary printing presses 2h to 2g are under management. As a result, the lines of the color adjustment devices 50 and the control device 35 of the rotary printing press 2 placed under the management of the color adjustment devices 50 are respectively connected, and the transmission processing of the color adjustment data as described above is started.

  Furthermore, as shown in FIG. 13, as a connected state of the rotary printing press 2, a part of the rotary printing press may be connected to another folding machine 4. For example, in FIG. 13, among the eight printing units 8 included in the rotary printing press 2, the upper four printing units A are connected to the folding machine 4a, and the lower four printing units B are connected to the folding machine 4b. In some cases. In such a case, the information of the printing unit 8 under management is notified to each color adjusting device 50 in addition to the information of the rotary printing press 2 under management.

  In such a case, when considering the unit of the rotary printing press 2, one rotary printing press 2 is under the control of the two color adjusting devices 50a and 50b. In this case, the control device 35 of the rotary printing press 2 individually connects the lines with the two color adjustment devices 50a and 50b, and receives color adjustment data from both the color adjustment devices 50a and 50b. Specifically, the color adjustment data corresponding to the printing unit A in the upper stage is received from the color adjustment apparatus 50a, and the color adjustment data corresponding to the printing unit B in the lower stage is received from the color adjustment apparatus 50b.

  As described above, even when one rotary printing press 2 is managed by a plurality of color adjustment devices 50, each control device 35 individually establishes a communication line with each color adjustment device 50a, 50b. The color adjustment data from the color adjustment devices 50a and 50b can be received with high efficiency.

  As described above, according to the printing system according to the present embodiment, the plurality of control devices 35 and the plurality of color adjustment devices 50 are connected via the network 100, and the color adjustment devices 50a and 50b are connected to each other. Since the control command relating to the color adjustment of the rotary printing press 2 is transmitted only to the control device 35 of the rotary printing press 2 under its own management, it becomes possible to efficiently transmit information. Furthermore, each color adjusting device 50 is connected not only to the rotary printing press 2 under its own management but also to other rotary printing presses 2 via the network 100. For example, the rotary printing under its own management is provided. Even when the machine 2 is changed, it is possible to quickly follow the change. Thus, as described above, even when the connection state is changed, it is possible to quickly follow the change, and it is possible to transmit a control command relating to color adjustment only to the related rotary printing press 2. Become.

In addition, since the transmission unit of the control command related to the color adjustment is the unit of the printing press, the color adjustment of the plurality of printing units 8 included in each rotary printing press 2 can be performed substantially simultaneously. In other words, since color adjustment can be performed collectively for each rotary printing press, it is possible to avoid a gradual change in the color tone of the printed matter and to maintain stable quality. In addition, it is possible to stabilize the front and back quality of the printer that performs both front and back printing.
Furthermore, since it is possible to increase the efficiency of data transmission compared to handling a plurality of rotary printing presses 2 as one unit, color adjustment can be performed quickly. Also, since the rotary printing press 2 does not need to receive information irrelevant to itself (for example, a control command related to color adjustment related to other printing presses), the burden of data processing can be reduced.

  In the above-described embodiment, when a color adjustment command is received from the operation panel 60 or the remote console 51, a transmission stop request is transmitted to each color adjustment device 50. However, a transmission stop request is transmitted. It is also possible to take a mode that does not. In this case, the control device 35 smoothly controls the ink key opening by adopting the control command from the console 60 or the remote console 51 with priority over the color adjustment data from the color adjustment device 50.

  In the above-described embodiment, the case where the ink key opening degree is controlled based on the color adjustment data from the color adjustment device 50 has been described. For example, the color adjustment device 50 supplies the dampening water of the printing unit 8. It is good also as a structure which can be controlled. In such a case, instead of the column adjustment data from the color adjustment device 50, a control command relating to the amount of dampening water supplied, for example, the amount of water sprayed from the spray nozzle per unit time, the spray time, the spray interval, the spray nozzle Setting command information such as a number is transmitted. Then, the control device 35 can adjust the supply amount of the dampening water to a suitable value based on the setting command information, and thus can realize high-quality printing.

Further, as shown in FIG. 14, the control system shown in FIG. 8 has interface devices 70a and 70b corresponding to the color adjustment devices 50a and 50b, respectively, and the color adjustment devices 50a and 50b are interface devices 70a and 70b. The network configuration may be such that data is transmitted to and received from each of the control devices 35a to 35j under management. Here, the interface device 70 is provided when there is no data compatibility between the color adjustment device 50 and the control device 35, and the color adjustment data output from the color adjustment device 50 is sent to the control device 35. The data is converted into an applicable data format and transmitted to each control device 35.
Thus, by providing the interface device 70, it is possible to expand the application range of automatic color adjustment.

  As mentioned above, although embodiment of this invention was explained in full detail with reference to drawings, the specific structure is not restricted to this embodiment, The design change etc. of the range which does not deviate from the summary of this invention are included.

1 is a diagram illustrating a schematic configuration of a printing system according to an embodiment of the present invention. FIG. 3 is a schematic side view illustrating a schematic configuration of two printing units opposed to each other. It is a figure which shows an ink supply apparatus, and is a typical side view which shows the structure which concerns on the ink supply from an ink supply apparatus to a plate cylinder. It is a figure which shows an ink supply apparatus, and is a figure which shows the relationship between a web and an ink key unit. It is a figure which shows an ink supply apparatus, and is a figure which shows schematic structure of an ink key unit. It is a figure which shows an ink supply apparatus, and is a figure which shows schematic structure of the ink key opening degree adjustment apparatus which adjusts an ink key opening degree. It is a typical side view which shows the structure which concerns on the ink supply from an ink form roller to a rubber | gum cylinder. It is a figure which shows the network structure of the control system which controls a rotary printing press. . It is the figure which showed the connection aspect of the communication line established between each color adjustment apparatus and each rotary printing press. It is the figure which showed typically the structure of the color adjustment data transmitted with respect to a rotary printing press provided with eight printing units. It is a block diagram which shows schematic structure of a control apparatus. It is the figure which showed the other aspect of the connection state of the rotary printing press. It is the figure which showed the other aspect of the connection state of the rotary printing press. It is the figure which showed the example which further added the interface apparatus to the control system shown in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Printing system 2a thru | or 2j Rotary printing machine 4 Folding machine 8 Printing unit 10 IRGB densitometer 20 Ink key unit 21 Ink original roller 26a thru | or 26h Ink key 30 Ink key opening degree adjustment apparatus 33 Motor 35 Control apparatus 36 Remote CPU
37 Printing unit controller 38 Local CPU
39 Spray Dampener 40 Swimsuit Roller 41 Water Rider Roller 42 Water Swing Rollers 50a, 50b Color Adjusters 51a, 51b Remote Console 60 Operation Panel

Claims (8)

Multiple printing presses,
A plurality of color adjusting devices connected to the plurality of printing presses via a network;
The color adjusting device outputs a connection request for a communication line to each of the printing presses before printing by each of the printing presses under its control , and after each communication line is established, Control commands relating to color adjustment of the printing press are individually transmitted , and after the printing by each of the printing presses is completed, a request for disconnecting the communication line is output to each of the printing presses. system. With multiple folding machines,
The said color adjustment apparatus is provided corresponding to each of the said folding machines, and handles the said printing machine connected to the said folding machine corresponding to self as self-control. Printing system. A remote control device provided corresponding to each of the color adjustment devices,
The said color adjustment apparatus stops transmission of the said control command with respect to this printing machine, when the interruption control command regarding the said color adjustment is output with respect to the said printing machine from the said remote control apparatus corresponding to self. The printing system according to claim 1 or 2 . A remote control device provided corresponding to each of the color adjustment devices,
When the remote control device receives an interrupt control command related to the color adjustment from an operator, the remote control device transmits the interrupt control command to the corresponding printing machine,
The printing machine preferentially adopts an interrupt control command related to color adjustment received from the remote operation device when receiving a control command related to color adjustment from both the remote operation device and the color adjustment device. The printing system according to claim 1 or 2 . The printing press includes an operation panel for receiving an interrupt control command related to the color adjustment from an operator,
The color adjustment device, when the interrupt control instruction related to the color adjustment from the operation panel is outputted to the printing press, from claim 1 to stop transmission of the control command to the aforementioned printing machine in one of claims 4 The printing system described. The printing press includes an operation panel for receiving an interrupt control command related to the color adjustment from an operator. When the interrupt control command related to the color adjustment is received from the operation panel, an interrupt from the operation panel is received. The printing system according to any one of claims 1 to 4 , wherein the embedding control command is preferentially adopted. A color adjusting device connected to a plurality of the printing machines via a network,
Before printing by each of the printing machines under its control among the plurality of printing machines is started, a communication line connection request is output to each of the printing machines, and the communication line is established , a control command relating to color adjustment of each of the printing machine respectively transmitted separately, after the printing by each of the printing press is completed, outputs a disconnection request of the communication line for each of said printing press <br / > Color adjustment device. The color adjusting apparatus according to claim 7 , wherein the color adjusting apparatus is provided corresponding to a folding machine in which a plurality of printing presses are connected, and the plurality of printing presses connected to the printing press are handled under its own management. .

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