JP2020152011A - Printing plate mounting position guidance system and off-set rotary printing machine - Google Patents

Abstract

To provide a printing plate mounting position guidance system which can previously prevent mistakes in mounting a printing plate and an off-set rotary printing machine.SOLUTION: A printing plate mounting position guidance system for supporting a work for mounting each printing plate to a plate cylinder to which plural printing plates can be mounted along an axial direction comprises: a plate cylinder identification part which identifies a plate cylinder; a mounting position specification part which specifies a mounting position of the identified printing plate to a plate cylinder; and a mounting position guidance part which guides the identified printing plate to the specified mounting position. An off-set rotary printing machine comprises: a plate cylinder to which plural printing plates can be mounted along an axial direction; and a printing plate mounting position guidance system for supporting a work for mounting each printing plate to the plate cylinder. The printing plate mounting position guidance system comprises: a plate cylinder identification part which identifies a plate cylinder; a mounting position specification part which specifies a mounting position of the identified printing plate to a plate cylinder; and a mounting position guidance part which guides the identified printing plate to the specified mounting position.SELECTED DRAWING: Figure 2

Description

The present invention relates to a printing plate mounting position guidance system and an offset rotary printing press for supporting a printing plate mounting work on a plate cylinder.

Conventionally, printing units used in offset rotary printing presses for newspapers include an ink supply device having a large number of ink supply rollers, a dampening water supply device for supplying dampening water, and a plurality of printing units (generally for four pages). It is equipped with a plate cylinder on which the printing plates of the above are mounted side by side along the axial direction and a blanket cylinder on which a plurality of (generally two) blankets are mounted, and the ink supplied from the ink supply device is used as the plate. The contents (characters, images, etc.) of the printing plate are transferred to the continuous paper by being supplied to the blanket cylinder via the cylinder and contacting the continuous paper on which the blanket cylinder travels at a predetermined pressure.

In such an offset rotary printing press for newspapers, the printed image is changed by exchanging the printing plate. Normally, such a printing press replacement is performed by a worker visually reading the mounting position information written on the printing press and mounting the printing press at the corresponding plate cylinder position. Since the number of printing plates to be replaced at one time is extremely large in a printing press, there is a high possibility that a printing plate mounting error will occur. Such an incorrect mounting of the printing plate not only causes a large amount of waste paper, but may lead to a large work delay. Therefore, it is desired to take measures to prevent such an incorrect mounting of the printing plate. There is.

In recent years, as a measure to prevent such an error in mounting the printing plate, a barcode including mounting position information is printed on each printing plate, and the barcode can be read for each mounting position of the plate cylinder. By installing a reader, reading the barcode of the printing plate attached to the plate cylinder with the barcode reader, and comparing this with the allocation information of the printing plate, is the printing plate after mounting installed in the correct mounting position? A printing plate mounting position determination device configured to determine whether or not to use has been proposed (Patent Document 1). According to the printing plate mounting position determination device of Patent Document 1, it is possible to prevent printing from being executed in a state where the printing plate is mounted at an erroneous mounting position.

Japanese Patent No. 3407112

However, the printing plate mounting position determination device of Patent Document 1 is merely a device for finding a printing plate mounting error, and does not prevent a printing plate mounting error. Therefore, in the printing plate mounting position determination device of Patent Document 1, the worker still visually reads the mounting position information described on the printing plate, and makes a thoughtful judgment that the printing plate is mounted at the corresponding plate cylinder position. In addition to the labor required, it is necessary to perform the work of re-mounting when the printing plate mounting position determination device detects erroneous mounting.

The present invention has been made in view of the above-mentioned problems of the prior art, and an object of the present invention is to provide a printing plate mounting position guidance system and an offset rotary printing press capable of preventing printing plate mounting errors. To provide.

The printing plate mounting position guidance system according to the present invention is a printing plate mounting position guidance system for supporting the mounting work of each printing plate on a plate cylinder capable of mounting a plurality of printing plates along the axial direction. A printing plate identification unit that identifies the plate, a mounting position specifying unit that specifies the mounting position of the identified printing plate with respect to the plate cylinder, and a mounting position that guides the identified printing plate to the specified mounting position. It is characterized by being provided with a guide portion.

The printing plate mounting position guidance system according to the present invention includes a plurality of plate holding portions provided for each printing plate mounting position and capable of operating independently, and a surface selection button provided for each plate holding portion. When the mounting position of the identified printing plate is specified by the mounting position specifying unit, only the surface selection button corresponding to the specified mounting position becomes operable, and the other above The surface selection button is preferably inoperable.

Further, it is preferable that the printing plate mounting position guidance system according to the present invention further includes a notification means for notifying an error when the surface selection button in the inoperable state is operated.

In the printing plate mounting position guidance system according to the present invention, the surface selection button is a surface corresponding to the specified mounting position when the mounting position of the identified printing plate is specified by the mounting position specifying unit. The selection button may be turned on and the other surface selection buttons may be turned off to function as the mounting position guiding unit.

Further, the offset rotary printing press according to the present invention has a plate cylinder capable of mounting a plurality of printing plates along the axial direction, and a printing plate mounting position guidance system for supporting the mounting work of each printing plate on the plate cylinder. The printing plate mounting position guidance system is characterized by a printing plate identification unit that identifies the printing plate, a mounting position specifying unit that specifies the mounting position of the identified printing plate with respect to the plate cylinder, and the identification unit. It is characterized by including a mounting position guiding portion that guides the printing plate to the specified mounting position.

According to the present invention, it is possible to provide a printing plate mounting position guidance system and an offset rotary printing press capable of preventing printing plate mounting errors.

It is a figure which shows the schematic structure of the printing part which concerns on this embodiment. It is a figure which shows the schematic structure of the vicinity of the operation part in the printing part which concerns on this embodiment. It is a figure which shows the operation part enlarged. It is a figure which shows the schematic structure of the printing plate which concerns on this embodiment, FIG. 4 (a) is a perspective view which shows the front surface side of a printing plate, and FIG. 4 (b) is a perspective view which shows the back surface side of a printing plate. It is a figure. It is a block diagram which shows the system structure of the printing plate mounting position guidance system. It is a figure which shows an example of the plate-hanging state display screen. It is a figure which shows an example of the whole version hanging state display screen. It is a flowchart which shows the flow of the plate hanging work using the printing plate mounting position guidance system which concerns on this embodiment.

Hereinafter, preferred embodiments for carrying out the present invention will be described with reference to the drawings. It should be noted that the following embodiments do not limit the invention according to each claim, and not all combinations of features described in the embodiments are essential for the means for solving the invention. ..

[Overall configuration of offset rotary printing press]
The offset rotary printing machine according to the present embodiment is a so-called offset rotary printing machine for newspapers used for printing newspapers, and is a paper feed that holds a plurality of rolls of continuous paper (printed matter). A section (not shown), a printing section 1 that performs offset printing on both sides of the continuous paper supplied from the paper feed section, and a single or multiple continuous sheets after printing are cut at a predetermined cutoff (cutting length). Each sheet group is created, and the sheet group is folded to form a desired signature (not shown), and a continuous paper traveling path from the printing unit 1 to the folded portion is formed. Rail frame unit (not shown), post-processing mechanism (not shown) that processes and integrates signatures formed by folding machines, and one or more control units that execute various controls for each configuration (not shown). (Not shown).

The offset rotary printing press according to the present embodiment includes a paper feeding unit, a printing unit 1, a rail frame unit, and a folding unit. The so-called towers of the printing unit 1 are provided in a plurality of rows (6 rows in the example shown in FIG. 7). Each tower is provided with a control unit and a graphic panel GP, and can operate in conjunction with each other, and can operate independently by releasing the interlocking. The number of towers (the number of paper feeding units, printing unit 1, rail frame unit, and folding unit installed) can be arbitrarily changed according to the configuration of the signature to be created.

In the offset rotary printing press according to the present embodiment, various known configurations can be arbitrarily adopted for the paper feed unit, the rail frame unit, the folding unit, the post-processing mechanism, and the control unit, and thus the description thereof will be omitted. To do.

[Structure of each printing section]
As shown in FIG. 1, the printing unit 1 is a color (cyan in the present embodiment) including four printing units (first printing unit 1a to fourth printing unit 1d) arranged along the supply direction of continuous paper. , Magenta, yellow and black) It is a tower type printing unit that supports printing. The first printing unit 1a and the second printing unit 1b are installed on the printing floor of the factory (building), and the third printing unit 1c and the fourth printing unit 1d are installed on the middle floor of the factory. The printing unit 1 does not have to be a tower-type printing unit for color printing in which all the printing units 1 installed in the offset rotary printing press are composed of four printing units 1a to 1d, and some or all of them need to be It may be a printing unit for single-color or two-color printing consisting of only one or two printing units.

Hereinafter, the first printing unit 1a and the second printing unit 1b are collectively referred to as a "lower side printing unit", and the third printing unit 1c and the fourth printing unit 1d are collectively referred to as an "upper side printing unit". Further, in the printing unit 1, the side (operation side) in which the operation is performed by the operator is referred to as "OS" (operation side), and the opposite side is referred to as "DS" (drive side). Further, the right side when the printing unit 1 is viewed from the OS side is referred to as "R side", and the left side is referred to as "L side".

Each of the first printing unit 1a to the fourth printing unit 1d is a plate on which an ink supply device 4 having a large number of ink supply rollers, a dampening water supply device 5 for supplying dampening water, and a printing plate 7 are mounted. A printing couple is provided in which a body 2 and a blanket body 3 on which a printing blanket (not shown) is mounted are arranged in pairs on the left and right sides of continuous paper. In the first printing unit 1a to the fourth printing unit 1d, similarly to the conventional printing unit, the ink supplied from each ink supply device 4 passes through the printing plate of each plate cylinder 2 to print the blanket of each blanket cylinder 3. The contents of the printing plate (characters, images, etc.) are transferred to the continuous paper by contacting the continuous paper (printed object) on which the printing blanket runs with a predetermined pressure.

The plate cylinder 2 has a linear printing plate mounting groove extending along the axial direction, and is configured so that a plurality of printing plates can be mounted along the axial direction. For example, the plate cylinder 2 according to the present embodiment has an axial length (W) that is substantially equal to four times the horizontal length of one newspaper page and a circumferential length that is substantially equal to the vertical length of one newspaper page. It is a so-called 4 (W) × 1 (L) type plate cylinder having a length (L) of, and is configured so that four printing plates can be mounted along the axial direction. The plate cylinder 2 is not limited to the 4 (W) × 1 (L) type plate cylinder, and various plate cylinders such as a so-called 4 (W) × 2 (L) type plate cylinder may be used. It is possible. In the offset rotary printing press according to the present embodiment, various known ink supply devices 4, the dampening water supply device 5, the plate cylinder 2 and the blanket cylinder 3 can be arbitrarily used, and thus the description thereof will be omitted. To do.

Further, as shown in FIGS. 1 and 2, the first printing unit 1a to the fourth printing unit 1d each include a printing plate automatic attachment / detachment device 6 arranged close to each plate cylinder 2. As shown in FIG. 2, the printing plate automatic attachment / detachment device 6 is suspended between the OS side frame F _OS and the DS side frame F _DS via a pair of left and right brackets, and the printing plate 7 in each plate cylinder 2 It is provided with a plurality of plate holding portions (not shown) provided at each mounting position (4 locations in the present embodiment). The plate holders are provided so as to have a one-to-one correspondence with the printing plate 7, and each of them can be operated independently.

Each plate holding portion is configured so that the corresponding printing plate 7 can be automatically attached to the plate cylinder 2 and the printing plate 7 can be automatically removed from the plate cylinder 2. Specifically, when the printing plate 7 is mounted on the plate cylinder 2, each plate holding portion is engaged with the gripping side end portion 7a of the printing plate 7, which will be described later, at the gripping side edge portion of the printing plate mounting groove. It is configured to press the corresponding printing plate 7 against the plate cylinder 2 that rotates in the forward direction in the state of being pressed. Further, each plate holding portion is formed by pushing the gripping end side end portion 7b of the printing plate 7 which has reached the printing plate mounting groove, which will be described later, into the printing plate mounting groove, thereby forming the gripping tail side end portion 7b. The notch 7d is configured to fit into the register pin in the printing plate mounting groove. Further, in each plate holding portion, even when the printing plate 7 is removed from the plate cylinder 2, the holding side end portion 7a of the printing plate 7 is locked to the holding side edge portion of the printing plate mounting groove. The corresponding printing plate 7 is pressed against the plate cylinder 2 rotating in the opposite direction, and the printing plate 7 is configured to suppress fluttering.

The detailed configuration of the printing plate automatic attachment / detachment device 6 according to the present embodiment is the configuration of the known printing plate automatic attachment / detachment device disclosed in, for example, JP-A-2018-111244 and JP-A-2018-187781. Since it can be adopted arbitrarily, a detailed description thereof will be omitted.

Further, as shown in FIGS. 1 and 2, the printing unit 1 inputs various setting information and a printing unit control panel (not shown) that executes various controls of the first printing unit 1a to the fourth printing unit 1d. It is provided with a graphic panel GP for the operation, an operation unit 10 for manually operating the printing plate automatic attachment / detachment device 6 and the like, and a plate storage unit 9 for temporarily storing the printing plate 7 to be mounted. ..

The printing unit control panel is configured to be capable of executing printing plate mounting position guidance control, which will be described later, in addition to normal operation control for operating the first printing unit 1a to the fourth printing unit 1d. Such a printing unit control panel is a control unit 21 for guiding the printing plate mounting position, which will be described later, in the existing printing unit control panel conventionally used for operating the first printing unit 1a to the fourth printing unit 1d. This can be achieved by incorporating (see FIG. 5).

Graphics panel GP, as shown in FIGS. 1 and 2, are provided on the OS side surface of the OS side frame _{F OS} of the first printing unit 1a. In addition to the normal screen for displaying and setting the operating conditions, the graphic panel GP is a plate-hanging state display screen 100 for displaying the plate-hanging state of the printing unit 1 on which the graphic panel GP is installed. (See FIG. 6) and the overall plate-hanging state display screen 200 (see FIG. 7) for displaying the plate-hanging state of the entire rotary printing press can be displayed. The plate hanging state display screen 100 and the entire plate hanging state display screen 200 will be described later.

As shown in FIG. 1, the operation unit 10 is provided on the L-side side surface and the R-side side surface of the first printing unit 1a and the L-side side surface and the R-side side surface of the third printing unit 1c, respectively. There is. Hereinafter, the operation unit 10 provided on the L-side side surface of the first printing unit 1a is referred to as a "first operation unit 10", and the operation unit 10 provided on the R-side side surface of the first printing unit 1a is referred to as a "first operation unit 10". The operation unit 10 referred to as "2 operation unit 10" and provided on the L-side side surface of the third printing unit 1c is referred to as "third operation unit 10" and is provided on the R-side side surface of the third printing unit 1c. The operation unit 10 is referred to as a "fourth operation unit 10".

The first operation unit 10 is configured to be able to operate the printing plate automatic attachment / detachment device 6 and the like on the L side of the lower side printing unit (first printing unit 1a and second printing unit 1b), and the second operation unit 10 is configured. , The printing plate automatic attachment / detachment device 6 on the R side of the lower printing unit (first printing unit 1a and second printing unit 1b) can be operated. Further, the third operation unit 10 is configured to be able to operate the printing plate automatic attachment / detachment device 6 and the like on the L side of the upper side printing unit (third printing unit 1c and fourth printing unit 1d), and the fourth operation unit 10. Reference numeral 10 denotes an automatic printing plate attachment / detachment device 6 on the R side of the upper printing unit (third printing unit 1c and fourth printing unit 1d) and the like so as to be operable.

As shown in FIG. 3, each operation unit 10 reads identification information from the surface selection buttons 12a to 12d and 14a to 14d provided for each plate holding unit and the marking 8a to be described later provided on the printing plate 7. It includes a reading unit CR and a buzzer 18 for notifying an error.

The surface selection buttons 12a to 12d and 14a to 14d are buttons for selecting a plate holder to be operated from among a plurality of plate holders, and are for each plate holder, that is, the printing plate 7 on each plate cylinder 2. It is provided so that there is a one-to-one correspondence with the mounting positions (four locations in this embodiment). Specifically, the surface selection button is for operating the plate holding portion arranged in association with the A surface of the plate cylinder 2 of the lower printing unit (first printing unit 1a or third printing unit 1c). The lower A-side selection button 12a and the lower B-side selection button 12b for operating the plate holding portion arranged in association with the B-side of the same plate cylinder 2 are arranged in association with the C-plane of the same plate cylinder 2. It is provided with a lower C-side selection button 12c for operating the plate holding portion and a lower D-side selection button 12d for operating the plate holding portion arranged in association with the D-plane of the plate cylinder 2. There is. Further, the surface selection button selects the upper A surface for operating the plate holding portion arranged in association with the A surface of the plate cylinder 2 of the upper printing unit (second printing unit 1b or fourth printing unit 1d). The button 14a, the upper B-side selection button 14b for operating the plate holder arranged so as to correspond to the B surface of the same plate cylinder 2, and the plate holder arranged so as to correspond to the C surface of the same plate cylinder 2. It is provided with an upper C-side selection button 14c for operating the unit and an upper D-side selection button 14d for operating the plate holder arranged in association with the D-plane of the plate cylinder 2. The surface selection buttons 12a to 12d and 14a to 14d have a built-in light source, and are configured to be able to switch between a lighting state and a lighting state by turning off the light source.

The reading unit CR is mounted on which surface of which plate cylinder of which printing unit of which tower the printing plate 7 is attached to the identification information of the printing plate 7 from the sign 8a of the target printing plate 7. It is configured to acquire information (mounting position information) indicating whether or not it is printed. In the present embodiment, the reading unit CR is a code reader capable of reading information from a one-dimensional code or a two-dimensional code, but it can be appropriately changed according to the type of the sign 8a of the printing plate 7. For example, when the sign 8a of the printing plate 7 is character information, it is possible to adopt an OCR (optical character reader) capable of recognizing the character information as character data, and the label of the printing plate 7 can be used. When 8a is an electronic component such as an IC tag, it is possible to adopt a configuration such as a short-range wireless communication means capable of reading information by short-range wireless communication.

The buzzer 18 is configured to function as a notification means for notifying an error by issuing an alert sound when the surface selection buttons 12a to 12d and 14a to 14d in the inoperable state are operated. The buzzer 18 is configured to notify the buzzer sound even when the body is manually rotated in the forward or reverse direction, or when the body is automatically stopped at the printing plate holding position.

Further, as shown in FIG. 3, each operation unit 10 collectively switches between the operable state (single action control) and the inoperable state (interlocking control) of the lower A-side selection button 12a to the lower D-side selection button 12d. The lower selection button 12e for this purpose, and the upper selection button 14e for collectively switching between the operable state (single action control) and the inoperable state (interlocking control) of the upper A surface selection button 14a to the upper D surface selection button 14d. , The automatic button 19 for switching between the automatic control and the manual control of the printing plate automatic attachment / detachment device 6 and the automatic button 19 are pressed when the automatic button 19 is in the ON state (automatic control state) to execute the automatic printing plate mounting operation. The plate-hanging button 15 for the purpose, the plate-removing button 16 for executing the automatic plate removal operation by being pressed when the automatic button 19 is in the ON state (automatic control state), and the rotary printing press are forcibly forced. It is provided with a STOP button 17 for stopping. The lower selection button 12e, the upper selection button 14e, the automatic button 19, the plate hanging button 15, the plate removal button 16 and the STOP button 17 are conventionally known and are not coded in FIG. Since the buttons of are not necessary for the description of the present invention, their description will be omitted.

Plate storage unit 9, as shown in FIG. 2, is supported capable constructed by hooking the later-described leading edge side end portion 7a of the plate 7, the side surface of the OS side frame F _OS so as to sandwich the operating portion 10 They are respectively provided on the side surface of the DS side frame F _DS and. Each plate storage unit 9 has a width capable of supporting two single plate printing plates 7 (one in the case of a double plate) side by side, and is scheduled to be installed in the vicinity of the plate cylinder 2 to be installed. The printing plate 7 of the above is configured to be temporarily storable.

The printing plate 7 is formed of a flexible metal thin plate material (generally an aluminum plate), and as shown in FIG. 4, one of the printing plate mounting grooves of the plate cylinder 2 is formed at one end in the longitudinal direction. A grip side end portion 7a that can be locked to the side edge portion (holding side edge portion) is provided, and the other end portion is configured to be pulled into the printing plate mounting groove by the printing plate tightening mechanism. It has a buttock end 7b. Notches 7c and 7d that can be engaged with the register pins of the plate cylinder 2 are formed on the grip side end portion 7a and the grip end side end portion 7b of the printing plate 7, respectively, and these notch portions are formed. The printing plate 7 is positioned by engaging the 7c and 7d with the register pins. Note that FIG. 4 illustrates a single version having a size equivalent to one page of a newspaper, but is not limited to this, and is not limited to this, and is a type of printing plate such as a double version having a size equivalent to two pages of a newspaper. Can be selected arbitrarily.

Further, on the gripping side end portion 7a of the printing plate 7, a sign 8a having information (mounting position information) indicating which surface of which plate cylinder of which printing unit of which tower the printing plate 7 is mounted. Is provided. The marker 8a may be any means as long as the mounting position information can be read by a machine. For example, a one-dimensional code (bar code) or a two-dimensional code (stack type two-dimensional code or matrix type two-dimensional code) including the mounting position information is used. It may be code information such as, or it may be an electronic component such as an IC tag in which mounting position information is recorded. Further, in the case of code information, it may be configured to be printed by an inkjet printer at the time of plate making, it may be configured to affix a sticker or the like on which the code information is printed, or other optional such as laser, printing, and engraving. It may be configured to be printed by the means of. In the case of a configuration printed by an inkjet printer, it is preferable to use a water-based ink. If the printing plate 7 is a developed plate, it can be printed by a CTP (plate making machine), and if the printing plate 7 is an unprocessed plate, it is an inkjet printer separate from the CTP (plate making machine). Should be provided.

By providing the marker 8a on the gripping side end portion 7a of the printing plate 7 in this way, after performing the reading work on the reading unit CR, the work shifts to the plate hanging work on the plate cylinder 2 without changing the holding. This makes it possible, which has the advantage of improving work efficiency. However, the present invention is not limited to this, and the position of the sign 8a can be arbitrarily changed. Further, in the illustrated example, the sign 8a is provided at two places for the purpose of improving workability, but the present invention is not limited to this, and a configuration may be provided at only one place.

On the surface of the printing plate 7, a mark 8b for indicating the position of the sign 8a and character information 8c indicating the mounting position of the printing plate 7 are provided. The mark 8b is a mark such as a triangle, and is provided at a position consistent with the mark 8a. The character information 8c is information such as characters and symbols that can be visually confirmed by the operator, and is, for example, No. 15 No. Adopts an arbitrary character string such as "T15-1D-RA" which means the mounting position of the plate cylinder 2 on the R side of the first printing unit 1a (1D) of the tower (T15) to which the is shaken. It is possible, but not limited to. These marks 8b and character information 8c can be printed by, for example, an inkjet printer at the time of plate making, and are configured to disappear at the time of printing by using a water-based ink. In addition, instead of or together with the configuration in which the mark 8b and the character information 8c are printed by the inkjet printer, the operation unit 10 itself reads the printing plate 7 (single plate and double plate) as shown in FIGS. 2 and 3. A mark 8b'indicating a reference position may be provided. The mark 8b'indicating the reading reference position is read by the reading unit CR, for example, when the mark 8b'is aligned with the side edge of the holding side end portion 7a of the printing plate 7. It is provided at the position. The mark 8b'is not limited to the positions shown in FIGS. 2 and 3, and can be arbitrarily changed according to the position of the reading unit CR, the size and shape of the printing plate 7, the position of the marker 8a, and the like. Is. Further, the mark 8b'preferably has a structure in which, for example, a tape or a sticker can be replaced so that the reading reference position can be freely changed according to the size and shape of the printing plate 7, but the mark 8b'is limited to this. Instead, it may be configured to be printed directly on the operation panel 10 or the like.

[Configuration of printing plate mounting position guidance system]
The offset rotary printing press having the above configuration includes a printing plate mounting position guidance system 20 for supporting the mounting work of each printing plate 7 on the plate cylinder 2. As shown in FIG. 5, the printing plate mounting position guidance system 20 includes a control unit 21 that executes printing plate mounting position guidance control, the above-mentioned reading unit CR, the above-mentioned graphic panel GP, and the above-mentioned first to first. 4 The operation unit 10 is composed of a storage unit 28 in which various data, programs, and the like related to the printing plate mounting position guidance control are stored. The printing plate mounting position guidance system 20 is provided in each tower, and is configured to be able to operate independently. As a result, for example, in the operating state (during printing) of the offset rotary printing press, it is possible to mount the printing plate 7 on the tower that is stopped in the non-interlocking state.

The storage unit 28 is composed of various storage means such as a hard disk and a memory, and includes allocation information including information on the mounting position of each printing plate 7 in addition to various processing programs for operating the printing plate mounting position guidance system 20. Is remembered. This allocation information is information on allocating the printing plate 7 to be mounted at each printing plate mounting position of each plate cylinder of each printing unit, that is, information indicating the correct mounting position of each printing plate 7, from the host system. It is created based on the acquired production instruction information (print schedule). The allocation information is created every time the production instruction information acquired from the host system is updated, and the allocation information stored in the storage unit 28 is also updated in real time. It should be noted that such allocation information is information that is also created in a conventional offset rotary printing press and is publicly known, so the description thereof will be omitted.

In the present embodiment, the control unit 21 is a PLC (Programmable Logical Controller) for guiding the printing plate mounting position, and the mounting position of the printing plate 7 with respect to the plate cylinder 2 is obtained from the identification information of the printing plate 7 read by the reading unit CR. It is provided with a mounting position specifying unit 22 for specifying the mounting position and a mounting position guiding unit 23 for guiding the printing plate 7 to the mounting position specified by the mounting position specifying unit 22.

The mounting position specifying unit 22 compares the identification information of the printing plate 7 read by the reading unit CR with the allocation information stored in the storage unit 28, so that the printing plate 7 is the printing plate 7 to be mounted. It is configured to perform a process of determining whether or not the printing plate 7 is used and specifying an accurate mounting position of the printing plate 7. Further, when the mounting position specifying unit 22 determines that the printing plate is not the printing plate to be mounted by this determination process, the buzzer 18 executes a process of notifying an error, and also provides error information and correct mounting on the graphic panel GP. It is configured to execute a process to display the position and the like.

Specifically, when the printing plate 7 to be mounted on the plate cylinder 2 on the R side of the fourth printing unit 1d is read by the reading unit CR of the first operation unit 10, for example, the mounting position specifying unit 22 The printing plate 7 (printing plates other than the printing plate to be mounted on the plate cylinder 2 on the L side of the first printing unit 1a and the plate cylinder 2 on the L side of the second printing unit 1b) not covered by the first operation unit 10. Is determined, and an error is notified by the buzzer 18. On the other hand, when the printing plate 7 to be mounted on the plate cylinder 2 on the L side of the first printing unit 1a is read by the reading unit CR of the first operation unit 10, the mounting position specifying unit 22 is the first. After the operation unit 10 determines that the printing plate 7 is the target, the printing plate 7 should be mounted on any of the A side to the D side of the plate cylinder 2 on the L side of the first printing unit 1a. Identify if it is version 7.

As shown in FIG. 5, the mounting position guiding unit 23 controls switching and locking the lighting states of the surface selection buttons 12a to 12d and 14a to 14d based on the mounting position information specified by the mounting position specifying unit 22. It is provided with a button control unit 24 capable of executing the above, and a display control unit 26 capable of executing a process of displaying the mounting position on the graphic panel GP based on the information of the mounting position.

When the mounting position of the printing plate 7 is specified by the mounting position specifying unit 22, the button control unit 24 turns on the surface selection button corresponding to the specified mounting position and turns off the other surface selection buttons. It is configured to perform lighting control for the state. The term "lighting" here also includes "blinking" in which lighting and extinguishing are repeated in a short period of time. Further, when the mounting position of the printing plate 7 is specified by the mounting position specifying unit 22, the button control unit 24 makes the surface selection button corresponding to the specified mounting position operable, and selects other surfaces. It is configured to perform lock control that renders the button inoperable. Further, the button control unit 24 is configured to execute notification control for notifying an error by the buzzer 18 when the surface selection button in the inoperable state is operated.

Specifically, the mounting position specifying unit 22 identifies that the printing plate 7 read by the reading unit CR is, for example, the printing plate 7 to be mounted on the A side of the plate cylinder 2 on the L side of the first printing unit 1a. In this case, the button control unit 24 lights only the lower A surface selection button 12a of the first operation unit 10 and makes it operable, and the other surface selection buttons 12b to 12d and 14a to 14d are turned off. It keeps it and executes control to lock it so that it cannot be operated. Then, when the lower A side selection button 12a of the first operation unit 10 is operated in this state, the plate holding unit corresponding to the lower A side selection button 12a (the plate cylinder on the L side of the first printing unit 1a). The plate holding portion) arranged on the A side of 2 is lowered, and the printing plate 7 is pressed against the plate cylinder 2. On the other hand, when the surface selection buttons 12b to 12d and 14a to 14d other than the lower A surface selection button 12a are operated in the same state, the button control unit 24 executes notification control for notifying an error by the buzzer 18.

The display control unit 26 is configured to be able to execute display control of the graphic panel GP, and has a plate-hanging state display screen 100 for displaying the plate-hanging state of the printing unit 1 and a plate-hanging state of the entire rotary printing press. It is configured to display the entire printing state display screen 200 for displaying the above on the graphic panel GP. Further, the display control unit 26 is configured to display the specified mounting position on the graphic panel GP when the mounting position of the printing plate 7 is specified by the mounting position specifying unit 22. Further, the display control unit 26 is configured to display error information on the graphic panel GP when the surface selection button in the inoperable state is operated.

As shown in FIG. 6, the plate-hanging status display screen 100 has a speed display area 102 for displaying the current printing speed (the number of copies to be printed per unit time) and the required number of printing plates (prints to be installed) for the entire printing unit 1. The total number of plates 7), the number of printed plates installed and the number of remaining printing plates are displayed, the number of printing plates display area 104, the allocation information display area 106 for displaying allocation information, and the mounting status of the printing plates 7 are displayed. A mounting status display area 108 and release buttons 110a to 110d for disabling the function of guiding the printing plate mounting position are provided.

In the mounting status display area 108, all surfaces of the printing unit 1 (A to D surfaces of the plate cylinder 2 on the L side of the first printing unit 1a, A to D surfaces of the plate cylinder 2 on the R side, and second printing The A to D sides of the plate cylinder 2 on the L side of the unit 1b and the A to D sides of the plate cylinder 2 on the R side, and the plates A to D and the R side of the plate cylinder 2 on the L side of the third printing unit 1c. A display box 109 is provided in association with the A to D surfaces of the cylinder 2 and the A to D surfaces of the plate cylinder 2 on the L side of the fourth printing unit 1d and the A to D surfaces of the plate cylinder 2 on the R side. ing. Each display box 109 is configured so that the display mode such as coloring and pattern changes according to the mounting state of the printing plate 7. Specifically, the display box 109 according to the present embodiment is not attached, the code is scanned by the reading unit CR, and the display box 109 is pressed against the plate cylinder 2 by the plate holding unit. It is configured so that the situation can be visually and intuitively recognized by gradually changing the display mode from the mounted state. Further, the display box 109 according to the present embodiment is configured to display a portion not used for producing a newspaper in a different display mode.

The release buttons 110a to 110d are provided in association with the first operation unit 10, the second operation unit 10, the third operation unit 10, and the fourth operation unit 10, respectively, and are turned ON and OFF by the operation of the operator. It is configured to be switchable. In the ON state, the release buttons 110a to 110d control the mounting position specifying unit 22 and the mounting position guiding unit 23 with respect to the operating unit 10 corresponding to the released buttons 110a to 110d turned on (the printing plate mounting position guiding function). ) Is disabled and the plate holder can be operated manually.

As shown in FIG. 7, the overall plate-hanging status display screen 200 has a speed display area 202 for displaying the current printing speed (the number of copies to be printed per unit time) and the required number of printing plates (to be installed) for the entire rotary printing press. (Total number of printing plates 7), the total number of printing plates displaying the number of printed plates installed and the number of remaining printing plates 204, and the mounting status display area 206 displaying the mounting status of the printing plates 7 in the entire rotary printing press. And individual printing plate number display areas 208a to 208f for displaying the required number of printing plates (total number of printing plates 7 to be installed), the number of installed printing plates, and the remaining number of printing plates in each printing unit 1 are provided. ing. The overall version hanging status display screen 200 can be viewed on all of the plurality of graphic panel GPs installed in different towers and the graphic panels installed in the console that mainly operates.

The mounting status display area 206 is provided with a display box 207 in association with all surfaces (printing plate mounting positions) of all printing units 1 of the rotary printing press. Each display box 207 is configured to change the display mode such as coloring and pattern according to the mounting state of the printing plate 7. Since the display mode of each display box 207 can be set in the same manner as the display box 109 of the mounting status display area 108 of the plate-hanging state display screen 100, the description thereof will be omitted.

[How to use the printing plate mounting position guidance system]
Next, a method of supporting the mounting work of each printing plate 7 on the plate cylinder 2 by using the printing plate mounting position guidance system 20 according to the present embodiment will be described with reference to FIG.

First, prior to mounting the printing plate 7, production instruction information (printing schedule) is sent from the host system for each printing tower, and the above-mentioned allocation information is created. The created allocation information is passed to the CTP (plate making machine) by any means, and the CTP (plate making machine) makes a plate of each printing plate 7 based on the allocation information. At the time of plate making or before and after plate making, the above-mentioned sign 8a is provided on the holding side end portion 7a of the printing plate 7, and the printed image, the above-mentioned mark 8b and the above-mentioned character information 8c are provided on the surface of the printing plate 7. Be done. When the printing plate 7 is made, the operator conveys the printing plate 7 to the printing unit to be mounted based on the character information 8c printed on the surface of the printing plate 7, and hooks the printing plate 7 on the plate storage unit 9. Temporarily store. The above is the preparatory process before the mounting work of the printing plate 7.

At the stage of actually mounting the printing plate 7 through the above preparation steps, as shown in FIG. 8, the operator first picks up the printing plate 7 stored in the plate storage unit 9 and picks it up. The reading unit CR is made to read the sign 8a printed on the printing plate 7 (S1). In the reading operation, a button or the like may be used as a trigger for activating the reading unit CR, or the reading unit CR may be always activated.

When the reading unit CR reads the sign 8a of the printing plate 7, the reading unit CR acquires the identification information of the printing plate 7 from the sign 8a and passes the identification information to the control unit 21. In addition, the mounting status of the corresponding display boxes 109 and 207 on the plate hanging status display screen 100 and the overall plate hanging status display screen 200 changes from the non-mounted state to the code scan state.

Upon receiving the identification information from the reading unit CR, the control unit 21 first, from the identification information of the printing plate 7 read by the reading unit CR in the mounting position specifying unit 22, the printing plate 7 is which plate cylinder of which printing unit. By specifying which surface to be mounted (S2) and collating the specific result with the allocation information stored in the storage unit 28, it is determined whether or not the printing plate 7 is the printing plate to be mounted. (S3). Then, when the mounting position specifying unit 22 determines that the printing plate is not the printing plate to be mounted by this determination process, the buzzer 18 or the graphic panel GP notifies an error (S4'). As a result, the operator is made aware that the storage position of the printing plate 7 is different, and is encouraged to carry the printing plate 7 to the correct position of the plate cylinder 2 again. At this time, it is preferable to display the correct mounting position of the printing plate 7 on the graphic panel GP.

On the other hand, when the printing plate to be mounted is determined by the determination process of the mounting position specifying unit 22, the mounting position guiding unit 23 is based on the information of the mounting position specified by the mounting position specifying unit 22. The surface selection button (target surface selection button) corresponding to the specified mounting position is turned on, the other surface selection buttons are turned off (S4-1), and the surface selection button corresponds to the specified mounting position. The surface selection button to be operated is set to the operable state, and the other surface selection buttons are set to the inoperable state (locked state) (S4-2). At the same time or before or after this, the display control unit 26 displays the specified mounting position on the graphic panel GP (S4-3). As a result, the operator can mount the printing plate 7 at the correct mounting position of the plate cylinder 2 without making a mistake.

After that, the operator presses the surface selection button corresponding to the position of the locked printing plate 7 in a state where the gripping side end portion 7a of the printing plate 7 is locked in the printing plate mounting groove of the plate cylinder 2. To do. At this time, if the surface selection button pressed by the operator is a surface selection button in an operable state, the plate holding portion corresponding to the surface selection button is lowered, and the printing plate 7 is pressed against the plate cylinder 2. Press (S6). Further, the mounting status of the corresponding display boxes 109 and 207 on the plate-hanging status display screen 100 and the overall plate-hanging status display screen 200 changes from the code scan state to the plate holding state (during roller fixing). On the other hand, when the surface selection button pressed by the operator is an inoperable surface selection button, an error is notified by the buzzer 18 or the graphic panel GP (S6').

In this way, the mounting position of the printing plate 7 is guided by lighting the surface selection button corresponding to the mounting position and displaying the graphic panel GP, and the surface selection button other than the correct mounting position cannot be operated. Since it is possible to guide the printing plate 7 to the correct mounting position, it is possible to prevent an error in mounting the printing plate 7 in advance. Further, if the correct surface selection button (the surface selection button in the operable state) is pressed in a state where the printing plate 7 is mounted in the wrong position, the plate holding portion corresponding to the surface selection button operates. Since the plate holder at a position different from the position where the printing plate 7 is mounted operates, in any case, the operator can notice on the spot that the printing plate 7 is mounted incorrectly.

When the mark 8a of the other printing plate 7 is read by the reading unit CR after the marking 8a of the printing plate 7 is read by the reading unit CR and before the printing plate 7 is pressed by the plate holding unit. Is released from the mounting position guidance process for the previously read printing plate 7, and the mounting position guidance processing for the newly read printing plate 7 is started.

Then, when the printing plate 7 is pressed against the plate cylinder 2 by the plate holding portion and is temporarily attached, the surface selection button that was in the lit state is turned off (S7-1), and the surface that was in the inoperable state is turned off. Change (unlock) the select button to the operable state (S7-2). After that, when the plate hanging button 15 is pressed at a predetermined timing, the automatic printing plate mounting operation is executed on the printing plate 7 in the temporarily mounted state, and the printing plate 7 is mounted on the plate cylinder 2. When this mounting operation is performed, the mounting status of the display boxes 109 and 207 on the plate hanging status display screen 100 and the overall plate hanging status display screen 200 corresponding to the printing plate 7 that was temporarily mounted is in the plate holding state. It changes from (while fixing the roller) to the mounted state.

After that, the above steps are repeatedly executed until all the printing plates 7 necessary for producing the newspaper are attached.

As described above, the printing plate mounting position guidance system 20 according to the present embodiment has a reading unit CR for reading identification information provided on the printing plate 7 and mounting for specifying the mounting position of the printing plate 7 with respect to the plate cylinder 2. It includes a position specifying unit 22 and a mounting position guiding unit 23 that guides the printing plate 7 to a specified mounting position. According to such a printing plate mounting position guidance system 20, it is possible to reliably guide the printing plate 7 to the correct mounting position, so that it is possible to prevent a mounting error of the printing plate 7 in advance.

In particular, in the printing plate mounting position guidance system 20 according to the present embodiment, when the mounting position of the printing plate 7 is specified by the mounting position specifying unit 22, only the surface selection button corresponding to the specified mounting position is operated. It is configured so that it becomes possible and the other surface selection buttons become inoperable. Further, in the printing plate mounting position guidance system 20, when the mounting position of the printing plate 7 is specified by the mounting position specifying unit 22, the surface selection button corresponding to the specified mounting position is lit, and other than that. The surface selection button is configured to turn off. According to such a printing plate mounting position guidance system 20, it is possible to more reliably prevent the printing plate 7 from being mistakenly mounted.

Further, the printing plate mounting position guidance system 20 according to the present embodiment includes a notification means (buzzer 18 or graphic panel GP in the above example) for notifying an error when a surface selection button in an inoperable state is operated. There is. According to such a printing plate mounting position guidance system 20, it is possible to make the operator recognize the wrong mounting of the printing plate 7, so that the mistake of mounting the printing plate 7 can be prevented even more reliably. It becomes possible to do.

Then, according to the printing plate mounting position guidance system 20 according to the present embodiment, various materials (mainly) caused by the mounting error of the printing plate 7 can be prevented by preventing the printing plate 7 from being mounted incorrectly. There is an advantage that it is possible to prevent wasted paper (rolling paper) and work delay (delay in shipping time), greatly reduce the work load required for mounting the printing plate 7, and greatly improve workability. ..

Further, in the printing plate mounting position guidance system 20 according to the present embodiment, in order to always compare the identification information read from the printing plate 7 with the latest allocation information and identify the correct mounting position, for example, an accident or printing of a rotary printing press Even if the mounting position of the printing plate 7 or the printing plate 7 to be mounted is changed due to replacement of images or the like, the correct printing plate 7 can be mounted at the correct latest mounting position.

Although the preferred embodiment of the present invention has been described above, the technical scope of the present invention is not limited to the scope described in the above-described embodiment. Various changes or improvements can be made to each of the above embodiments.

For example, in the above-described embodiment, the plate holding portion is provided so as to have a one-to-one correspondence with the printing plate 7, and each is configured to be independently operable, but the present invention is not limited to this, for example. When the printing plate 7 is a double plate, it is possible to have a configuration in which two plate holding portions operate in conjunction with one printing plate 7. In this case, it is possible to adopt a configuration in which the two plate holders operate at the same time by operating one of the two surface selection buttons provided corresponding to the two plate holders.

In the above-described embodiment, the operation units 10 are provided at a total of four locations, the L-side side surface and the R-side side surface of the first printing unit 1a, and the L-side side surface and the R-side side surface of the third printing unit 1c. However, the present invention is not limited to this, and the number and positions of the operation units 10 can be arbitrarily changed. For example, it may be installed for each printing unit, or it may be installed on only one of the L side and the R side, and all the printing units can be operated by one operation unit. It may be configured to be installed on a console that mainly operates. By reducing the number of workers, it is possible to carry out without using the plate storage unit 9.

In the above embodiment, although the graphic panels GP has a structure provided on the OS side surface of the OS side frame F _OS of the first printing unit 1a, not limited to this, the installation number and position of the graphic panel GP any Can be changed to. In addition, the graphic panel GP can be a portable tablet.

In the above-described embodiment, as a configuration for guiding the printing plate 7 to the mounting position, the surface selection buttons 12a to 12d and 14a to 14d corresponding to the mounting position are lit, and the mounting position is displayed on the graphic panel GP. However, the configuration is not limited to this. For example, in place of or in addition to these configurations, a configuration in which a light source provided for each mounting position is lit separately from the surface selection button, a configuration in which the mounting position is illuminated by laser light or the like, a projector, etc. It is also possible to adopt various configurations such as a configuration in which an image is superimposed on the mounting position and a configuration using voice such as reading out the mounting position.

In the above-described embodiment, the sign 8a provided on the printing plate 7 has been described as including the mounting position information of the printing plate 7, but the present invention is not limited to this, and the sign 8a is for identifying the printing plate 7. The configuration may include only a special identifier. In this case, for example, a data table in which the identifier of the printing plate 7 and the mounting position information are linked is stored in the storage unit 28 of the printing plate mounting position guidance system 20, and the identifier read by the reading unit CR is used. The data table can be used to specify the mounting position information.

Further, in addition to the above-described configuration, it is also possible to adopt a configuration such as the printing plate mounting position determination device of Patent Document 1 in which mounting position information is read again from the printing plate 7 after mounting to detect erroneous mounting. is there.

It is clear from the description of the claims that the above-mentioned modifications are included in the scope of the present invention.

1a to 1d printing unit 2 plate cylinder 6 plate automatic attachment / detachment device 7 printing plate 8a sign 9 plate storage unit 10 operation unit 12a to 12d, 14a to 14d surface selection button 18 buzzer 20 printing plate mounting position guidance system 21 control unit 22 mounting Positioning unit 23 Mounting position guidance unit 24 Button control unit 26 Display control unit 28 Storage unit 100 Plate hanging status display screen 200 Overall plate hanging status display screen CR reading unit GP graphic panel

Claims (5)

It is a printing plate mounting position guidance system for supporting the mounting work of each printing plate on a plate cylinder capable of mounting a plurality of printing plates along the axial direction.
A reading unit that reads the identification information provided on the printing plate,
A mounting position specifying portion that specifies the mounting position of the printing plate with respect to the plate cylinder,
A printing plate mounting position guidance system including a mounting position guiding unit that guides the printing plate to the specified mounting position. A plurality of plate holders provided for each mounting position of the printing plate and capable of operating independently, and
It also has a surface selection button provided for each plate holder.
When the mounting position of the printing plate is specified by the mounting position specifying unit, only the surface selection button corresponding to the specified mounting position becomes operable, and the other surface selection buttons are inoperable. The printing plate mounting position guidance system according to claim 1, wherein the printing plate mounting position is guided. The printing plate mounting position guidance system according to claim 2, further comprising a notification means for notifying an error when the surface selection button in an inoperable state is operated. In the surface selection button, when the mounting position of the printing plate is specified by the mounting position specifying unit, the surface selection button corresponding to the specified mounting position is lit, and the other surface selection buttons are turned off. The printing plate mounting position guidance system according to claim 2 or 3, wherein the mounting position guidance unit is configured to function when the state is set. A plate cylinder that can mount multiple printing plates along the axial direction,
It is equipped with a printing plate mounting position guidance system to support the mounting work of each printing plate on the plate cylinder.
The printing plate mounting position guidance system is
A reading unit that reads the identification information provided on the printing plate,
A mounting position specifying portion that specifies the mounting position of the printing plate with respect to the plate cylinder,
An offset rotary printing press including a mounting position guiding portion that guides the printing plate to the specified mounting position.

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