JP2022067480A - Control device of printing machine and operation method of printing machine and printing machine - Google Patents

Abstract

[Problem] In a printing press control device, a printing press, and a printing press operating method, printing is automated and support functions for the operator are enhanced to eliminate skill requirements. [Solution] The printer start time is set based on the planned number of copies to be printed, the planned printing end time, and the planned print preparation time that is set based on the specifications of the printed matter, and printing begins when the printer start time is reached. [Selected Figure] Figure 1

Description

The present disclosure relates to a control device of a printing machine that automatically performs printing by a printing machine, a printing machine provided with a control device of the printing machine, and an operation method of the printing machine.

For example, a newspaper offset rotary printing press includes a paper feeding device, a printing device, a web path device, and a folding machine. When printing is performed by a newspaper offset rotary printing press, a printing schedule is created in advance according to the specifications of the printed matter and the number of copies to be printed. Based on the printing schedule, the worker prepares for printing before printing, then starts the printing machine, and performs printing speed adjustment, paper inspection, register adjustment, cutting position adjustment, folding position adjustment, etc. during printing. ing.

As a technique for automating various operations in the operation of an offset rotary printing press for newspapers, for example, there is one described in the following patent documents.

Japanese Unexamined Patent Publication No. 64-85761 Japanese Patent No. 2564372

As described above, it is considered to automate some operations in the operation of the newspaper offset rotary press. However, in recent years, by further automating printing and enhancing support functions for workers, even inexperienced workers can easily operate the offset rotary printing press for newspapers to create high-quality printed matter. It has been demanded.

The present disclosure solves the above-mentioned problems, and provides a control device for a printing machine, a printing machine, and an operating method for the printing machine, which aims to be skillless by enhancing printing automation and support functions for workers. The purpose is.

The control device of the printing press of the present disclosure for achieving the above object sets the printing press start-up time based on the scheduled number of copies to be printed, the scheduled print end time, and the scheduled print preparation time, and when the printing press start-up time is reached. Start printing.

Further, the printing machine of the present disclosure includes a paper feed device that supplies a web, a printing device that prints on the web, and a web path that vertically cuts and overlaps the printed web and changes a transport path and a path length. The apparatus includes a folding machine that vertically cuts and vertically folds the stacked webs and then cross-cuts the webs to form a folding machine, and a control device for the printing machine.

Further, the operation method of the printing machine of the present disclosure includes a process of setting a printing machine start time based on a planned number of copies, a scheduled printing end time, and a scheduled printing preparation time, and starting printing when the printing machine start time is reached. It has a process.

According to the control device of the printing machine and the operating method of the printing machine and the printing machine of the present disclosure, it is possible to achieve skilllessness by automating printing and enhancing support functions for workers.

FIG. 1 is a schematic configuration diagram showing a control block in the offset rotary printing press for newspapers of the present embodiment. FIG. 2 is a schematic diagram showing a print schedule. FIG. 3 is a flowchart showing automatic operation control of an offset rotary printing press for newspapers. FIG. 4 is a flowchart showing the automatic generation process of the print schedule. FIG. 5 is a flowchart showing the print start process. FIG. 6 is a flowchart showing the print continuation process. FIG. 7 is a flowchart showing the print end process. FIG. 8 is a schematic configuration diagram showing the offset rotary printing press for newspapers of the present embodiment.

Preferred embodiments of the present disclosure will be described in detail below with reference to the drawings. It should be noted that the present disclosure is not limited to this embodiment, and when there are a plurality of embodiments, the present embodiment also includes a combination of the respective embodiments. Further, the components in the embodiment include those that can be easily assumed by those skilled in the art, those that are substantially the same, that is, those in a so-called equal range.

[Offset rotary printing press for newspapers]
FIG. 8 is a schematic configuration diagram showing the offset rotary printing press for newspapers of the present embodiment. The offset rotary printing press for newspapers of the present embodiment is a 4 × 1 rotary printing press in which the size of the plate cylinder of the printing apparatus is set to 4 page width × 1 page circumference, but the size of the plate cylinder is 4 page width. It may be a 4 × 2 rotary printing machine set to × 2 page circumference.

As shown in FIG. 8, the printing machine of this embodiment is an offset rotary printing machine for newspapers 10. The newspaper offset rotary printing press 10 includes a paper feeding device R, an infeed device I, a printing device U, a web path device D, and a folding machine F.

The paper feed device R has a plurality of (seven units in this embodiment) paper feed units R1 to R7. The in-feed device I has a plurality of (seven in this embodiment) in-feed units I1 to I7. The printing apparatus U has a plurality of (six in this embodiment) printing units U1 to U6. The web pass device D has a plurality of (two in this embodiment) web pass units D1 and D2. The folding machine F has a plurality of folding units F1 and F2 (two in this embodiment).

In the paper feed device R, the paper feed units R1 to R7 have substantially the same configuration, and have a holding arm for holding three rolls of paper (printing medium) W wound in a roll shape. By rotating the holding arm, the take-up paper can be rotated to the paper feed position. In the in-feed device I, the in-feed units I1 to I7 have substantially the same configuration, and the web traveling on the printing device U by adjusting the tension of the web W sent to the printing units U1 to U6 of the printing device U. The tension of W is stably maintained at an appropriate value. The tension of the web W from the paper feed device R to the infeed device I is performed by a brake device (not shown) provided in the paper feed units R1 to R7.

In the printing apparatus U, the printing units U1 to U6 are multicolor printing units capable of performing double-sided four-color printing. However, each printing unit U1 to U6 can be divided into upper and lower printing units U11 to U62 capable of performing double-sided two-color printing. The printing units U11 to U62 have almost the same configuration, and include an ink supply device, a plate cylinder, a blanket cylinder, and the like.

In the web pass device D, the web pass unit D1 is provided for the printing units U1 to U3, and the web pass unit D2 is provided for the printing units U4 to U6. The web path units D1 and D2 have almost the same configuration, and have a slitter that cuts the web W along the vertical direction (the transport direction of the web W) at the center in the width direction, and a transport path of the vertically cut web W. It has a turn bar to be set, a compensator for adjusting the position of the pattern in the longitudinal direction of the top and bottom of the web W, and the like.

Each web W printed by the printing units U1 to U3 is vertically cut by the web path unit D1 by the slitter, the transport route is changed by the turn bar, the pattern position is adjusted by the compensator, and then in a predetermined order. Overlaid. Further, each web W printed by the printing units U4 to U6 is vertically cut by the web path unit D2 by the slitter, the transport route is changed by the turn bar, and the pattern position is adjusted by the compensator before the predetermined position. They are layered in order. There is also a pattern in which each web W printed by the printing units U4 to U6 enters the web W printed by the printing units U1 to U3 via the web path unit D1.

In the folding machine F, the two folding units F1 and F2 are arranged on the operation side and the drive side. When a plurality of webs W1 are stacked and introduced from the web path unit D1, the folding unit F1 vertically folds the web W1, cuts it horizontally to a predetermined length, and folds it horizontally to form a newspaper. To eject as. Further, when a plurality of webs W2 are stacked and introduced from the web path unit D2, the folding unit F2 vertically folds the web W2, horizontally cuts the web W2 to a predetermined length, and horizontally folds the web W2 to form a tatami mat. , Discharge as a newspaper. In this embodiment, two folding units F1 and F2 are provided, but without providing the folding unit F2, the web W1 and the web W2 are overlapped and vertically folded by one of the folding units F1 to have a predetermined length. It may be cut horizontally, folded horizontally to form a tatami mat, and discharged as a newspaper.

[Control block]
FIG. 1 is a schematic configuration diagram showing a control block in the offset rotary printing press for newspapers of the present embodiment.

In the present embodiment, as shown in FIG. 1, the control device 20 of the printing machine can be automatically operated by controlling the offset rotary printing machine 10 for newspapers. The control device 20 sets the printing press start-up time based on the scheduled number of copies to be printed, the scheduled print end time, and the scheduled print preparation time, and starts printing when the printing press start-up time is reached.

The control device 20 includes a print schedule generation unit 21, a storage unit 22, and a printing machine control unit 23. The print schedule generation unit 21 generates a print schedule including a printing machine start time based on the number of scheduled print copies, the scheduled print end time, and the scheduled print preparation time. The storage unit 22 stores the generated print schedule. Further, in the generated print schedule, the storage unit 22 stores the time of various print preparation processes performed by the newspaper offset rotary printing press 10 and the time of various print preparation operations performed by the operator. The printing machine control unit 23 controls the newspaper offset rotary printing machine 10 based on the printing schedule stored in the storage unit 22.

The control device 20 is connected to the newspaper offset rotary printing press 10, inputs operation data of the newspaper offset rotary printing press 10, and outputs a control signal for controlling the newspaper offset rotary printing press 10. The control device 20 is connected to the operation device 31, the display device 32, and the delivery system 33. The operation device 31 can be operated by an operator, and various data and operation signals can be input to the control device 20 by the operator operating the operation device 31. The display device 32 can display the control content by the control device 20 and the notification to the operator. The display device 32 is, for example, a display, a speaker, a warning light, or the like. The delivery system 33 counts the current number of copies of the predetermined printed matter, and outputs the counting result to the control device 20. When the predetermined number of printed matter is printed by the delivery system 33, the delivery system 33 reads the barcode for each delivery truck written on the bundle of printed matter, gives a destination instruction, and sorts the packages to the designated truck gate.

[Print schedule]
Here, the print schedule set by the print schedule generation unit 21 will be described. FIG. 2 is a schematic diagram showing a print schedule.

As shown in FIG. 2, the print schedule is, for example, to print a predetermined number of copies of the first edition, the second edition, and the final edition of newspapers by the scheduled printing end time. Here, the planned number of printed copies is 8,000 for the first edition, 38,000 for the second edition, and 95,000 for the final edition. The scheduled printing end time is 22:30 for the first edition, 0:15 for the second edition, and 2:30 for the final edition. The scheduled print preparation time set by the print schedule generation unit 21 is 90 minutes for the first edition, 30 minutes for the second edition, and 60 minutes for the final edition.

The print schedule generation unit 21 generates a print schedule including a printing machine start time based on the number of scheduled print copies, the scheduled print end time, and the scheduled print preparation time set by the specifications of the printed matter. That is, based on the scheduled printing number of the first edition, the second edition, and the final edition, the scheduled printing end time of the first edition, the second edition, and the final edition, and the scheduled printing preparation time of the first edition, the second edition, and the final edition. The printing start time of the first edition, the second edition and the final edition, the printing preparation start time of the first edition, the second edition and the final edition, the normal printing speed of the first edition, the second edition and the final edition, etc. are set. That is, the normal printing speed and the printing time are set based on the planned number of copies of the first edition, the second edition, and the final edition.

In the print schedule, the print preparation of the first edition is started at the time t1 which is the scheduled print preparation time. Since printing is performed for the first time in the printing preparation here, for example, an operation pattern (printing unit to be used) selection process and ink winding performed by the newspaper offset rotary printing press (hereinafter referred to as a printing press) 10 are performed. Processing, input processing of various preset values, paper threading work performed by the operator, plate mounting work, etc. are required. When the printing preparation is completed and the time t2, which is the printing machine startup time, is reached, the printing machine is automatically started, and then the printing machine is accelerated to start printing. At time t3, the paper inspection speed is maintained and the paper inspection is performed. When the paper inspection is completed at time t4, the printing machine is accelerated, and at time t5, the normal printing speed is maintained and printing is continued. At time t6, the printing press is decelerated, and at time t7, the copy number adjustment speed is maintained. For example, the paper inspection speed is 30,000 copies / hour (single output), the normal printing speed is 40,000 copies / hour (single output), and the copy number adjustment speed is 30,000 copies / hour (single output). When the first edition is printed by a predetermined number of copies (8000 copies) at time t8, the printing machine is decelerated and the printing machine is stopped at time t9.

The printing preparation of the second plate is carried out between the time t9 and the time t10. The printing preparation for printing the second edition is, for example, input processing of various preset values and plate replacement work when the specifications of the printed matter of the first edition are substantially the same. In this case, the print preparation requires less processing performed by the printing machine 10 and less work performed by the operator as compared with the case where the specifications of the printed matter are different. Therefore, the print schedule generation unit 21 sets the time between the time t9 and the time t10, which is the start time of the printing press, to, for example, 30 minutes. When the printing preparation is completed and the time t10, which is the printing machine start time, is reached, the printing machine 10 is automatically started, then accelerated, and printing is started. At time t11, the paper inspection speed is maintained and the paper inspection is performed. When the paper inspection is completed at time t12, the printing machine is accelerated, and at time t13, the normal printing speed is maintained and printing is continued. At time t14, the printing press is decelerated, and at time t15, the copy number adjustment speed is maintained. For example, the paper inspection speed is 30,000 copies / hour (single output), the normal printing speed is 60,000 copies / hour (single output), and the copy number adjustment speed is 30,000 copies / hour (single output). When the second plate is printed by a predetermined number of copies (38,000 copies) at time t16, the printing machine is decelerated and the printing machine is stopped at time t17.

The final plate is prepared for printing between the time t17 and the time t18. For example, if the specifications of the printed matter of the second edition are different from the print preparation for printing the final plate, input processing of various preset values, plate mounting work, plate replacement work, paper threading work, roller cleaning processing, etc. are required. Become. In this case, the print preparation is often performed by the printing machine 10 and by the operator, as compared with the case where the specifications of the printed matter are substantially the same. Therefore, the print schedule generation unit 21 sets the time between the time t17 and the time t18, which is the printing machine start time, as, for example, 60 minutes. When the printing preparation is completed and the time t18, which is the printing machine start time, is reached, the printing machine 10 is automatically started, then accelerated, and printing is started. At time t19, the paper inspection speed is maintained and the paper inspection is performed. When the paper inspection is completed at time t20, the printing machine is accelerated, and at time t21, the normal printing speed is maintained and printing is continued. At time t22, the printing press is decelerated, and at time t23, the copy number adjustment speed is maintained. For example, the paper inspection speed is 30,000 copies / hour (single output), the normal printing speed is 75,000 copies / hour (single output), and the copy number adjustment speed is 30,000 copies / hour (single output). When the final plate is printed by a predetermined number of copies (95,000 copies) at time t24, the printing machine is decelerated and the printing machine is stopped at time t25.

Here, the scheduled print preparation time set by the specifications of the printed matter will be described. The specifications of the printed matter are, for example, the positions of color pages and monochrome pages for each edition such as the first edition, the second edition, and the final edition, the number of replacement pages, the total number of pages, and the like. As the specifications of the printed matter, for example, comparing the specifications of the printed matter of the previous edition and the next edition, the positions of the color pages and the monochrome pages are the same, the total number of pages is the same, and the replacement pages are only two monochrome pages, that is, almost the same printed matter. In the case of the specification of, the worker carries out the plate replacement work for two replacement pages.

On the other hand, as the specifications of the printed matter, for example, comparing the specifications of the printed matter of the previous edition and the next edition, the position of the color page and the monochrome page is changed, the replacement page is 2 pages for both color and monochrome, and the total number of pages is 36 pages. When changing from to 40 pages, that is, when the specifications of different printed matter are different, the worker can change the plate corresponding to the position of the color page or monochrome page, change the plate corresponding to the replacement page, and install the plate corresponding to the increased number of pages. Carry out the work. In addition, change work of the roll-up paper and paper threading work corresponding to the change of the total number of pages will be carried out. Therefore, the print preparation work time performed by the operator increases or decreases depending on how different the specifications of the printed matter are.

Further, as the specifications of the printed matter, for example, in the case of the specifications of the printed matter having substantially the same as described above, the printing machine 10 performs input processing of various preset values. On the other hand, as the specifications of the printed matter, for example, in the case of the specifications of the different printed matter described above, the printing machine 10 may need a roller cleaning process corresponding to the position change of the color page or the monochrome page or the position of the replacement page. In addition, ink winding processing and input processing of various preset values are performed. In addition, change processing of the roll paper corresponding to the change of the total number of pages (conveyance of the roll paper, setting in the paper feed device R), selection processing of the operation pattern such as change of the printing unit used, and input processing of various preset values are performed. Therefore, the print preparation processing time performed by the printing machine 10 increases or decreases depending on how different the specifications of the printed matter are.

The scheduled print preparation time is a consideration of the print preparation work time carried out by the operator and the print preparation processing time carried out by the printing machine 10, and is set according to the specifications of the printed matter.

Further, a method of calculating the print preparation time will be described. As a method for calculating the scheduled print preparation time, the following four methods can be considered. The scheduled print preparation time is a preparation time for making a plurality of devices constituting the printing machine 10 printable before printing. The plurality of devices constituting the printing machine 10 are a paper feeding device R, an infeed device I, a printing device U, a web path device D, a folding machine F, and peripheral devices (not shown) attached to the printing machine 10.

In the first method of calculating the scheduled print preparation time, the print preparation time is calculated from the time used for the past print preparation based on the work experience of the worker.

The second method of calculating the scheduled print preparation time is to obtain the unit preparation time for performing individual work and processing in the print preparation work performed by the worker and the print preparation process performed by the printing machine 10, and charts such as figures and graphs. Is created and set in the storage unit 22, and the scheduled print preparation time is calculated by adding the unit preparation time for performing individual work or processing based on the specifications of the printed matter. For example, the plate exchange work for exchanging one printing plate takes one minute, and when eight printing plates need to be exchanged, it takes eight minutes. Further, the one-route paper threading operation takes 10 minutes, and if two-route paper threading is required, it takes 20 minutes. The ink winding process of one printing unit is 1 minute, and if the ink winding process of two printing units is required, it is 2 minutes. The roller cleaning process for one printing unit is 2 minutes, and if the roller cleaning process for 6 printing units is required, it is 12 minutes. Various preset value input processing is 1 minute. In addition, the worker moves between the printing press 10 and the printing unit, prepares for work, and takes a break for 17 minutes. In this case, the scheduled print preparation time is calculated to be 60 minutes. Depending on the selection of the printing unit to be used, the ink winding process and the roller cleaning process can be performed in parallel.

In the third method of calculating the scheduled print preparation time, the individual work time and processing time actually used are stored in the storage unit 22, and if there are specifications of the same printed matter, they are stored in the storage unit 22. Use the scheduled print preparation time you have. In the fourth method of calculating the scheduled print preparation time, when there are specifications of the same or similar printed matter, the optimum scheduled print preparation time is calculated by learning based on the print preparation time stored in the storage unit 22. Here, the learning uses the past individual work time, processing time, average value of print preparation time, moving average value, weighted average, and the like.

The above-mentioned print schedule is an example, and the print schedule is changed according to the planned number of copies to be printed, the scheduled print end time, the print preparation time, the number of printing plates, and the like.

In the above-described embodiment, the control device 20 starts printing when the printing press start time is reached, but printing can be started before the printing press start time if necessary. When the print preparation work performed by the worker is completed, the worker can input the print start command signal to the control device 20 before the printing machine start time by operating the operation device 31. At this time, when the print preparation process performed by the printing machine 10 is completed, the control device 20 starts printing before the printing machine start time is reached. If the print preparation process performed by the printing machine 10 is not completed when the printing start command signal is input before the printing machine start time, the control device 20 completes the printing preparation process on the display device 32, for example. Displays that it has not been done and does not start printing. In this case, the control device 20 may start printing when the print preparation process performed by the printing machine 10 is completed, or may start printing when the printing machine start time is reached. good.

Then, when the printing start command signal is input before the printing machine start time and printing is started, the control device 20 changes the scheduled printing end time according to the actual printing machine start time. In this case, for example, if printing is started 30 minutes before the printing press start time, it is preferable to advance the scheduled printing end time by 30 minutes.

Further, when the printing start command signal is input and printing is started before the printing press start time, the control device 20 changes the printing speed to a low speed without changing the scheduled printing end time and ends the scheduled printing. Printing may be finished at the time. In this case, for example, the normal operating speed of 60,000 copies / hour is changed to a low speed of 40,000 copies / hour, and the scheduled printing end time is not changed. When the printing speed decreases, the printing quality becomes stable and energy saving effect can be expected.

[Automatic operation control of offset rotary printing press for newspapers]
Hereinafter, the automatic operation control of the offset rotary printing press 10 for newspapers based on the above-mentioned printing schedule will be described. FIG. 3 is a flowchart showing automatic operation control of a newspaper offset rotary printing press, FIG. 4 is a flowchart showing automatic printing schedule generation processing, FIG. 5 is a flowchart showing printing start processing, and FIG. 6 is printing continuation processing. FIG. 7 is a flowchart showing the print end process.

In the automatic operation control of the newspaper offset rotary printing press 10, as shown in FIGS. 1 to 3, in step S11, the operator inputs preset print information to the control device 20 using the operation device 31. do. Here, the print information is data including information for the print schedule generation unit 21 to generate a print schedule. That is, the print information includes the planned number of copies of the printed matter to be printed on that day, the scheduled print end time, and the specifications of the printed matter. The print information is, for example, other information such as the number of workers and the skill level of the workers. Even if the print information is input from the paper composition from the editing system, which is the upper system of the newspaper production process, the final version release time, the planned number of copies to be printed from the sales system, the plate making progress from the plate making system, the replacement surface information, etc. good.

In step S12, the print schedule generation unit 21 automatically generates a print schedule based on the input data including the planned number of copies of the printed matter, the scheduled print end time, and the specifications of the printed matter. In this case, as shown in FIG. 4, in step S41, the print schedule generation unit 21 confirms the number of scheduled print copies, the scheduled print end time, and the specifications of the printed matter. That is, the print schedule generation unit 21 uses the print information input by the operator using the operation device 31 as the planned number of copies of the printed matter as the print information necessary for generating the print schedule, the scheduled print end time, and the printed matter. Check if print information such as specifications is included. If the print information required to generate the print schedule is insufficient, the print schedule generation unit 21 may notify the operator using the display device 32.

In step S42, the print schedule generation unit 21 generates a print schedule. The method of generating the print schedule by the print schedule generation unit 21 is as described with reference to FIG. 2 described above. The print schedule generation unit 21 stores the generated print schedule in the storage unit 22. The necessary print preparation is selected according to the specifications of the printed matter. The main printing preparations are operation pattern (printing unit to be used) selection processing, ink winding processing, input processing of various preset values, paper threading work, plate mounting work, plate replacement work, roller cleaning, and the like. For example, if the specifications of the printed matter are almost the same between the first edition and the second edition, the print preparation is only the input processing of various preset values and the plate exchange work. On the other hand, if the specifications of the printed matter differ between the second edition and the final edition, in addition to input processing of various preset values and plate replacement work, plate mounting work, ink winding processing, roller cleaning processing, etc. are required. .. The print preparation time is the total of each work time. Further, it is preferable to set the normal printing speed of the first plate, the second edition, and the final plate to a printing speed as low as possible, which has less risk in printing according to the scheduled printing end time. In this case, the slowest possible printing speed means that even if a printing trouble occurs and printing stops, printing can be completed at the scheduled printing end time by setting the printing speed to a high speed after the trouble is solved. It's as fast as you can. In addition, the print quality is more stable at a lower printing speed.

Returning from FIG. 1 to FIG. 3, when the print schedule is generated in step S12, the printing machine control unit 23 presents the print schedule of the first edition stored in the storage unit 22 in step S13. In this case, for example, the printing machine control unit 23 displays the printing schedule of the first edition on the display device 32. In step S14, the printing machine control unit 23 waits until the start time of printing preparation based on the printing schedule of the first edition. In step S15, the printing machine control unit 23 determines whether or not the print preparation time of the first plate has been reached. Here, if it is determined that the print preparation time of the first edition has not been reached (No), the process returns to step S14.

On the other hand, when it is determined (Yes) that the print preparation time of the first edition has been reached, the printing machine control unit 23 notifies the start of the print preparation of the first edition in step S16. Notification of print preparation is performed using the display device 32. Specifically, the contents of the print preparation to be carried out by the worker are notified, and the start of the print preparation is urged. Here, among the operation pattern selection process, ink winding process, input processing of various preset values, paper threading work, plate mounting work, and roller cleaning process, the printing preparations manually performed by the operator are the paper threading work and the plate. It is a mounting operation, and other processes are automatically executed by the printing machine control unit 23.

In step S17, the printing machine control unit 23 automatically executes printing preparations such as operation pattern selection processing, ink winding processing, input processing of various preset values, and roller cleaning processing. In step S18, the operator manually performs printing preparations such as paper threading work and plate mounting work. In step S19, the printing machine control unit 23 determines whether or not the printing preparation by the operator is completed after the printing preparation automatically executed by the printing machine control unit 23 is completed. The completion determination of the print preparation by the operator may be determined by, for example, detecting the web W or the printing plate by the sensor, or may be determined by the input state of the print preparation completion switch by the operator. Here, if it is determined (No) that the printing preparation by the operator is not completed, the process returns to step S18. If the printing preparation is not completed even when the printing machine startup time is reached, the printing machine control unit 23 determines the printing speed based on the time from the printing machine startup time to the completion of the printing preparation. change. In this case, for example, the normal printing speed may be changed to be faster than the speed in the original printing schedule, and the scheduled printing end time may be maintained.

On the other hand, when it is determined (Yes) that the printing preparation by the worker is completed, in step S20, the printing machine control unit 23 automatically executes the printing preparation content and time, and the worker. The contents and time of the print preparation manually performed by the printer are recorded in the storage unit 22. This recorded data is used as learning data for the next print schedule generation process. Alternatively, it is used when there are specifications of the same printed matter in the next print schedule generation process. In step S21, the printing machine control unit 23 waits until the printing start time based on the printing schedule of the first edition. In step S22, the printing press control unit 23 determines whether or not the printing press startup time of the first edition has been reached. Here, if it is determined (No) that the start time of the printing machine of the first edition has not been reached, the process returns to step S20. The newspaper offset rotary printing press 10 issues a safety alarm and displays when it is started. Specifically, the display device 32 warns the operator, and measures such as mechanical and electrical safety fences are taken at dangerous places. In this case, when the printing press start-up time is approaching, the printing press control unit 23 warns the operator in advance of the arrival of the printing press start-up time by using the display device 32, for example, a display, a speaker, or a warning light. Encourage workers to quickly evacuate to the outside of mechanical and electrical safety fences.

On the other hand, when it is determined (Yes) that the printing machine start time of the first edition has been reached, the printing machine control unit 23 executes the printing start processing of the first edition in step S23. In this case, as shown in FIG. 5, in step S51, the printing press control unit 23 starts the printing press and then accelerates. In step S52, the printing press control unit 23 executes a low-speed paper pasting process while the printing press is being operated at a slow speed. In step S53, the printing machine control unit 23 determines whether or not the tension of the web W has reached a preset predetermined tension. Here, if it is determined (No) that the tension of the web W has not reached the predetermined tension, the process returns to step S52. On the other hand, when it is determined (Yes) that the tension of the web W has reached a predetermined tension, the printing machine control unit 23 accelerates the printing machine in step S54 and starts printing in step S55. When the printing speed reaches a preset paper reading speed, the printing machine control unit 23 maintains this paper reading speed in step S56.

In step S57, the printing machine control unit 23 executes the paper inspection process. That is, the printing machine control unit 23 executes good paper determination based on the results of an automatic register device, an automatic cutting control device, a print density control device, and a folding inspection device (not shown). That is, whether the print area is not displaced in the transport direction and the width direction of the web W, the cutting position of the web W is appropriate, the density of the image printed on the web W is appropriate, and the folding position of the web W is appropriate. judge. The register position and the cutting position are determined by the sensor detecting the position of the mark printed on the web W and determining whether the mark position is at a predetermined position. The density of the image is determined by the sensor detecting the density and the determination by comparing the detected density with the printed pattern based on the plate making data. When the printing apparatus has the ink preset function, it may be determined to be good when the register position and the cutting position are good. Further, the non-image area may be monitored by a simple light amount sensor. In this case, the amount of black loss light immediately after the start of printing may be monitored based on the amount of reflected light of the paper before printing, and it may be determined that the density is good when the amount of reflected light is reached. Here, if it is determined (No) that the print state of the web W after printing is not good (good paper), the process is executed until the good paper is obtained.

On the other hand, if it is determined (Yes) that the print state of the Web W is good (good paper), the good paper determination result is output to the shipping system 33 in step S58, and the good paper counter is started. That is, the shipping system 33 starts counting the number of printed copies. Then, in step S59, the printing machine control unit 23 records the good paper determination result in the storage unit 22. The storage unit 22 stores the print state of the web W determined to be good paper as a good paper determination reference image in the paper surface inspection device. In step S60, the printing machine control unit 23 accelerates the printing machine, and in step S61, the printing speed is maintained at the normal printing speed set in the printing schedule, and printing is continued.

Returning to FIG. 1 to FIG. 3, in step S24, the printing machine control unit 23 executes a continuous process of printing the first edition. In this case, as shown in FIG. 6, in step S71, the printing machine control unit 23 operates an automatic supply device (not shown) of the paper feed device R. The automatic feeding device automatically executes the paper splicing preparation process of the roll paper, the paper splicing process of the roll paper, the paper ejection process of the roll paper, the residual core removal process of the roll paper, and the attachment process of the new roll paper in the paper feed device R. In step S72, the printing press control unit 23 operates a paper surface inspection device (not shown). In step S73, the printing machine control unit 23 operates an automatic paper ejection device (not shown) of the folding machine F. The automatic paper ejection device automatically executes the folding inspection process and the paper flow detection process in the folding machine F. That is, in the continuous printing process, when printing is performed at the normal printing speed, the printing machine control unit 23 controls the operation of the paper feeding device R and the folding machine F, and inspects the web W by the paper surface inspection device. Run.

Returning to FIG. 1 to FIG. 3, in step S25, the printing machine control unit 23 determines whether or not the actual number of copies of the first plate has reached the number of copies at the time of printing end processing. Here, if it is determined (No) that the actual number of copies of the first plate has not reached the number of copies started at the time of the print end process, the print continuation process is continued. On the other hand, when it is determined (Yes) that the actual number of copies of the first edition has reached the planned number of copies to be printed, the print end process is executed in step S26.

As shown in FIG. 7, in step S81, the printing press control unit 23 decelerates to the copy number adjustment speed. In step S82, the printing machine control unit 23 determines whether or not the number of remaining print copies has reached zero. When the planned number of copies is changed (increased), the actual number of copies to be printed becomes larger than the planned number of copies to be printed. The number of remaining prints is calculated by comparing the actual number of copies with the planned number of prints plus the increase. Here, if it is determined (No) that the number of remaining print copies has not reached 0, printing is continued. On the other hand, if it is determined (Yes) that the number of remaining prints has reached 0, the printing machine is stopped in step S83. The data of the number of remaining prints is input from the shipping system 33 to the printing machine control unit 23.

Returning from FIG. 1 to FIG. 3, in step S27, the printing machine control unit 23 records the printing time of the first edition in the storage unit 22. This recorded data is used as learning data for the next print schedule generation process. Alternatively, it is used when there are specifications of the same printed matter in the next print schedule generation process. In step S28, the printing machine control unit 23 determines whether or not there is a next (second edition) printing schedule. Here, if it is determined (Yes) that there is a next (second edition) print schedule, the process proceeds to step S13, and the printing machine control unit 23 moves to the next (second) in step S13 in the same manner as described above. The print schedule of the plate) is presented, and the processes after step S14 are executed based on the print schedule. Then, when it is determined (Yes) that the number of remaining prints of the second plate has reached 0 in the print end process of step S26, the printing machine is stopped, and in step S28, the printing machine control unit 23 determines. Determine if there is a next (final version) print schedule. Here, if it is determined (Yes) that there is a print schedule for the final two plates, the process proceeds to step S13, and the printing machine control unit 23 presents the print schedule for the final plate in step S13 as described above. Then, the processes after step S14 are executed based on the print schedule.

On the other hand, if it is determined (No) that there is no next (final version) print schedule, the process proceeds to step S29, and the automatic cleanup process of the printing machine is executed. The automatic cleanup process of the printing machine is, for example, a cleaning process of a plurality of guide rollers in the web path device D, a cutting process of the web W, a paper ejection process of the web W from the folding machine F, and a cleaning process of a plurality of rollers in the printing device U. Processing etc. When the automatic cleanup process of the printing machine is completed, the worker performs the printing end work in step S30. The printing end work includes the work of returning the roll-up paper and the work of removing the printing plate.

[Action and effect of this embodiment]
The printing press control device according to the first aspect sets the printing press start-up time based on the scheduled print copy number, the scheduled print end time, and the scheduled print preparation time set by the specifications of the printed matter, and reaches the printing press start-up time. Then start printing.

The control device of the printing machine according to the first aspect automatically starts the printing machine and starts printing when the set printing machine start time is reached, so that printing automation and support functions for workers are enhanced. By making it skillless, it is possible to make it skillless.

The control device of the printing machine according to the second aspect has a print schedule generation unit 21 that generates a print schedule including a printing machine start time based on a scheduled printing number of copies, a scheduled printing end time, and a scheduled printing preparation time, and a print schedule. A storage unit 22 for storing and a printing machine control unit 23 for controlling the printing machine based on the printing schedule stored in the storage unit 22 are provided. As a result, the print schedule set by the print schedule generation unit 21 is stored in the storage unit 22, and the printing machine control unit 23 controls the printing machine based on the print schedule stored in the storage unit 22. The unit 23 can properly control the printing machine.

The control device of the printing machine according to the third aspect sets the print preparation start time based on the scheduled number of copies to be printed, the scheduled print end time, and the scheduled print preparation time, and when the print preparation start time is reached, the print preparation is started. Notify you and automatically perform at least part of the print preparation. As a result, the operator is notified of the start of the print preparation to be performed before printing, and at least a part of the print preparation is automatically performed. Therefore, the automatic print preparation and the manual print preparation are performed in parallel. Can be carried out.

The control device of the printing machine according to the fourth aspect has a storage unit 22 for recording the print preparation time by the operator and the print preparation time automatically executed. As a result, the print preparation time actually spent can be used as learning data in the next print schedule generation process, and the print schedule can be generated with high accuracy.

In the control device of the printing machine according to the fifth aspect, the scheduled print preparation time is the preparation time for making a plurality of devices constituting the printing machine 10 printable before printing, and is based on the specifications of the printed matter. It is set using the past print preparation time stored in the storage unit 22. This makes it possible to easily generate a print schedule.

In the control device of the printing machine according to the sixth aspect, the scheduled print preparation time is the preparation time for making a plurality of devices constituting the printing machine 10 printable before printing, and is based on the specifications of the printed matter. The past print preparation time stored in the storage unit 22 is learned and corrected and set. As a result, the print schedule can be generated with high accuracy.

In the control device of the printing machine according to the seventh aspect, the scheduled print preparation time is the preparation time for making the plurality of devices constituting the printing machine 10 printable before printing, and the plurality of devices are individually prepared. The unit preparation time for making the printable state is set in the storage unit 22, and the unit preparation time is added and calculated based on the specifications of the printed matter. As a result, the print schedule can be generated with high accuracy.

The control device of the printing machine according to the eighth aspect increases the printing speed of the printing machine and starts printing when the tensions of all the web Ws reach a preset predetermined tension after the printing machine is started. As a result, high-precision automatic printing can be performed by starting printing after the tension of the web W reaches a predetermined tension.

After starting printing, the control device of the printing machine according to the ninth aspect starts a printing copy counter when it is determined that the paper is good, and speeds up to a preset normal printing speed. As a result, it is possible to print a predetermined number of printed matter determined to be good paper with high accuracy.

The control device of the printing machine according to the tenth aspect stops printing when the actual number of printed copies reaches the planned number of copies, and records the printing time from the start of printing to the stop of printing. As a result, the printing machine can be automatically stopped after printing the planned number of copies, and the printing time from the start of printing to the stop of printing can be used as learning data in the next print schedule generation process. The print schedule can be generated with high accuracy.

When the printing start command signal is input before the printing machine start time, the printing machine control device according to the eleventh aspect starts printing before the printing machine start time is reached. As a result, the operator can start printing at a desired time and can start the printing machine 10 at any time.

If the printing machine control device according to the twelfth aspect starts printing before the printing machine start time is reached, the scheduled printing end time is changed according to the printing start time. As a result, the scheduled print end time is changed based on the changed printing press start time, and an appropriate print end time can be set.

When printing is started at a time different from the printing machine start time, the control device of the printing machine according to the thirteenth aspect changes the printing speed and ends printing at the scheduled printing end time. As a result, it is possible to set a printing speed suitable for the printing schedule, and it is possible to achieve an appropriate printing schedule and stable printing quality at the same time.

In the printing machine according to the fourteenth aspect, the paper feed device R for supplying the web W, the printing device U for printing on the web W, and the printed web W are vertically cut and overlapped, and the transport path and the path length are set. It includes a web path device D to be changed, a folding machine F for vertically folding the stacked web Ws and then cross-cutting them to form a fold, and a control device 20 for a printing machine. As a result, when the set printing press startup time is reached, the printing press is automatically started and printing is started. Therefore, it is possible to improve skilllessness by automating printing and enhancing support functions for workers. can.

The operation method of the printing press according to the fifteenth aspect includes a step of setting a printing press start-up time based on a scheduled print preparation time set by the scheduled number of copies, a scheduled print end time, and the specifications of the printed matter, and a printing press start-up time. It has a step of starting printing when it reaches. As a result, when the set printing press startup time is reached, the printing press is automatically started and printing is started. Therefore, it is possible to improve skilllessness by automating printing and enhancing support functions for workers. can.

In the above-described embodiment, the print schedule generation unit sets the print schedule based on the planned number of copies, the scheduled print end time, and the scheduled print preparation time, and the printing machine control unit controls the printing machine based on this printing schedule. However, the print schedule may be separately generated and stored in the storage unit 22.

Further, in the above-described embodiment, the print schedule generation unit sets the print schedule based on the planned number of copies, the scheduled print end time, and the scheduled print preparation time, but unexpected troubles and emergency replacement of articles occur. If printing cannot be completed at the scheduled printing end time even if the printing speed is set to the maximum speed, the print schedule generation unit may change the scheduled printing end time. Alternatively, the operator may arbitrarily set the scheduled print end time. In addition, the changed scheduled print end time is displayed on the display device 32 to notify the operator. Alternatively, the worker in charge of shipping is notified through the shipping system.

Further, in the above-described embodiment, the printing machine of the present invention has been described by applying it to the newspaper offset rotary printing machine 10, but the printing machine is not limited to this printing machine. For example, it may be applied to a commercial offset rotary printing press.

R Paper feed device R1 to R7 Paper feed unit I Infeed device I1 to I7 Infeed unit U Printing device U1 to U6, U11 to U62 Printing unit D Webpass device D1, D2 Webpass unit F folding machine F1, F2 folding unit 10 Offset rotary printing machine for newspapers (printing machine)
20 Control device 21 Print schedule generator 22 Storage unit 23 Printing machine control unit 31 Operation device 32 Display device 33 Shipping system W Web

Claims (15)

The printing press startup time is set based on the scheduled printing copy number, scheduled printing end time, and scheduled printing preparation time set by the specifications of the printed matter, and printing is started when the printing press startup time is reached.
Printing press control device. A print schedule generation unit that generates a print schedule including the printing press start time based on the planned number of copies, the scheduled printing end time, and the scheduled printing preparation time.
A storage unit for storing the print schedule and
A printing machine control unit that controls the printing machine based on the printing schedule stored in the storage unit.
The control device for a printing press according to claim 1. The print preparation start time is set based on the scheduled print number of copies, the scheduled print end time, and the scheduled print preparation time, and when the print preparation start time is reached, the start of the print preparation is notified and at least the print preparation is performed. Part of it is done automatically,
The control device for a printing press according to claim 1 or 2. It has a storage unit that records the print preparation time by the operator and the print preparation time automatically performed.
The control device for the printing press according to claim 3. The scheduled print preparation time is a preparation time for making a plurality of devices constituting the printing press ready for printing before printing, and is a past print preparation time stored in the storage unit based on the specifications of the printed matter. Set using,
The control device for a printing press according to claim 4. The scheduled print preparation time is a preparation time for making a plurality of devices constituting the printing press ready for printing before printing, and is a past print preparation time stored in the storage unit based on the specifications of the printed matter. Set by learning correction,
The control device for a printing press according to claim 4. The scheduled print preparation time is a preparation time for making a plurality of devices constituting the printing press printable before printing, and a unit preparation time for making the plurality of devices individually printable is stored in the storage unit. Is set to, and the unit preparation time is added based on the specifications of the printed matter to calculate.
The control device for a printing press according to any one of claims 4 to 6. After the printing press is started, when the tension of all the webs reaches a preset predetermined tension, the printing speed of the printing press is increased and printing is started.
The control device for a printing press according to any one of claims 1 to 7. After starting printing, if good paper is judged, the number of copies counter is started and the speed is increased to the preset normal printing speed.
The control device for a printing press according to claim 8. When the actual number of copies reaches the planned number of copies, printing is stopped and the printing time from the start of printing to the stop of printing is recorded.
The control device for a printing press according to any one of claims 1 to 9. If a print start command signal is input before the printing press start time, printing is started before the printing press start time is reached.
The control device for a printing press according to any one of claims 1 to 10. If printing is started before the printing machine start time is reached, the scheduled printing end time is changed according to the printing start time.
The control device for a printing press according to claim 11. When printing starts at a time different from the printing machine start time, the printing speed is changed and printing ends at the scheduled printing end time.
The control device for a printing press according to claim 11. The paper feed device that supplies the web and
A printing device that prints on the web,
A web path device that vertically cuts and overlaps the printed web and changes the transport route and path length.
A folding machine that forms a tatami mat by cross-cutting after vertically folding the webs that are vertically cut and stacked.
The control device for the printing press according to any one of claims 1 to 13.
A printing machine equipped with. The process of setting the printing press start time based on the scheduled print preparation time set by the scheduled print number of copies, the scheduled print end time, and the specifications of the printed matter, and
The process of starting printing when the printing press start time is reached, and
How to operate a printing press with.

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