JPH09216335A - Gravure cylinder and its automatic control method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To control a gravure cylinder further efficiently without any error by a method wherein an identification marking part in which a notation number allotted to the gravure cylinder is marked by binary numeral is provided on a side face of a cylindrical cylinder body of the gravure cylinder, an end face of a shaft, or its outer peripheral surface. SOLUTION: This gravure cylinder 1 is composed of a cylinder body 1a, and a cylinder shaft 1b, and a small hole 8 is bored on, for example, one side face of the gravure cylinder 1. By making the hole part '1' and a non-hole part '0', an identification marking part 7 composed of a 8-bit number marking part 7b and a 8-bit notation marking part 7a is formed. The identification marking part 7 may be provided on an outer peripheral surface and an end face of the shaft 1b. Then, by reading the identification marking part 7 with a detector, it is outputted as a control signal controlling a use position (use printing machine) of the gravure cylinder, exchanging order, storing place, etc., and the cylinder can be automatically controlled in the gravure printing.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is used in a gravure printing machine, in which a gravure cylinder is provided with an automatically readable identification display section and a detection signal from the identification display section is used to produce a gravure. The present invention relates to a gravure cylinder for managing a cylinder and an automatic management method for the gravure cylinder.

[0002]

2. Description of the Related Art Gravure printing using a so-called intaglio printing method enables mass printing at low cost, and in reproduction printing of photographs and works of art, the depth and texture of the tone can be sufficiently reproduced. Widely used for printing various publications.

Thus, in rotary high-speed gravure printing, a gravure cylinder having an intaglio surface on the outer peripheral surface is rotated at high speed, the paper surface is pressed against the gravure cylinder, and the ink held in the depressions on the plate surface is run. By shifting to the paper surface by suction, printing is performed in which the tone of light and shade changes continuously depending on the amount of the sucked ink.

FIG. 7 shows an example of a gravure cylinder used in a conventional rotary high-speed gravure printing machine. The gravure cylinder 1 is a cylindrical cylinder body 1.
It is composed of a and a cylinder shaft 1b. Further, an intaglio surface 1c forming an image portion is directly formed on the outer peripheral surface of the cylinder body 1a by so-called chemical etching, electronic scanning corrosion, laser scanning corrosion, etc., and is held in the intaglio surface 1c. Ink is adsorbed onto the paper surface.

For example, in a chemical etching type plate, an intaglio surface (printing plate surface) 1c is directly formed on the outer peripheral surface of the gravure cylinder by printing an image on the outer peripheral surface of the cylinder and corroding the baked image portion. Formed. Therefore, in normal gravure printing, when a predetermined amount of printing is completed, the gravure cylinder 1 in use is removed from the rotary gravure printing machine and transferred to the platemaking plant as it is. Then, as described later, the old image is removed and the new image is reformed (engraving).

By the way, there are rotary color gravure printing machines with one to twelve color printing sets, but the normal printing machine has four sets.
It has a set structure of color printing, and one printing machine has 4 sets.
A book gravure cylinder 1 is mounted. Then, when the printed matter changes, all of the gravure cylinders 1 are entirely replaced as described above. Therefore, in order to continuously operate the printing machine, at least 4 sheets are required for the next printing.
It is necessary to keep a spare gravure cylinder for the book in a storage cabinet or the like. In a gravure printing factory, usually, a plurality of gravure printing machines are operating, so at least 100 or more gravure cylinders 1 are always stored in the storage. Further, when the plate changing pitch is short and the time required for re-making the gravure cylinder is long, about 8 to 20 cylinders are held per gravure printing machine, and the gravure in the storage cabinet is held. The number of cylinders will increase significantly. Furthermore, gravure cylinder 1
The outer diameter and length of the printer may vary depending on the model of the printing machine, and even on the same printing machine, it may vary depending on the size of the printed matter.In such a case, not only the number of cylinders but also their types. Will increase.

8 and 9 are a front view and a side view showing an example of a storage state of the gravure cylinder 1 in a conventional storage cabinet, in which a guide sprocket 3a is provided on a support 3 standing upright in the storage cabinet. A chain 5 having an openable and closable shaft receiver 4 attached thereto is wound around this. The chain 5 is rotated in the arrow direction by a drive motor (not shown) via a drive sprocket 6, whereby the gravure cylinder 1 supported between both shaft receivers 4 is indicated by the arrow. Is rotated in the direction. Further, the removal and support storage of the gravure cylinder 1 are performed manually by stopping the chain 5 at a predetermined position and then unlocking each shaft receiver 4.

However, in the conventional storage cabinet, the operator visually manages the storage positions of the gravure cylinders 1, their delivery destinations, the delivery order, and the like. Therefore, for example, even when the marking paper (marking paper) on which the plate cylinder number or the like is attached is fixed to each gravure cylinder 1, the desired gravure cylinder 1 is required smoothly if the marking paper falls off. There is a problem that it cannot be carried out to the gravure printing machine. Further, there is a problem that a general display object such as a mark paper is erased by polishing or plating in the plate making process of the cylinder 1, and is easily indistinguishable due to adhesion of ink or oil.

[0009]

SUMMARY OF THE INVENTION According to the present invention, a worker visually manages the above-mentioned problems in the conventional rotary gravure printing, that is, the storage of the gravure cylinder in the storage and the management thereof. Therefore, it is possible to carry out the desired gravure cylinder smoothly and quickly to the gravure printing machine that needs it, or to temporarily accept the used gravure cylinder removed from the gravure printing machine by changing the plate. It is intended to solve the problem that it can not be done smoothly, the gravure cylinder,
A unique serial number can be given by an identification display unit provided on the unit, and a serial number unique to the gravure cylinder is read from the identification display unit by a detector, and the gravure is read based on the read serial number signal. It is intended to automatically manage the storage location of the cylinder, the delivery destination, the delivery order, the temporary receiving location, and the like.

[0010]

A gravure plate cylinder according to the present invention is a gravure cylinder 1 comprising a cylindrical cylinder body 1a and a cylinder shaft 1b, and a side surface of the cylinder body 1a or an end surface or an outer peripheral surface of the shaft 1b. The basic configuration of the invention is to provide an identification display section 7 for displaying the serial number assigned to the gravure cylinder 1 in binary. Further, the automatic control method of the gravure plate cylinder of the present invention is a spare gravure cylinder used for changing the plate of the gravure printing machine B in a printing facility equipped with the gravure printing machine B and a storage box C of the gravure cylinder. 1 is provided with an identification display section 7 for displaying a serial number unique to 1 in a binary number, which is stored in a predetermined position of the storage C, and a gravure with a serial number designated by an instruction from the control computer 12 at the time of plate change. The cylinder 1 is carried into the gravure printing machine B from the storage C, and the identification display section 7 is provided during the carrying-in.
The basic configuration of the invention is to read the serial number of No. 2 by the detector 9 and input the serial number signal to the control computer 12 to collate the serial number with the instruction content.

[0011]

1 is a perspective view showing an outline of a gravure cylinder 1 according to the present invention. In the drawing, 1a is a cylinder body, 1b is a cylinder shaft, 1c is a gravure plate surface (intaglio plate surface), 7 Is an identification display section. The gravure cylinder 1 itself is a well-known one, and the cylinder body 1a may have any length, outer diameter, plate-making method and the like. In the present embodiment, the shaft fixed type is used as the gravure cylinder 1, but it goes without saying that it may be a so-called shaft separation type gravure cylinder 1.

The identification display section 7 is composed of a symbol display section 7a for displaying symbols / numbers in binary numbers and a number display section 7b. The number display section 7b is an 8-bit binary display and also has a symbol display section. 7a is formed by an 8 unit code (8-bit binary) obtained by adding a parity bit to the 7 unit code. Specifically, a small hole 8 is formed on one side surface of the gravure cylinder 1, and the hole portion is set to 1 and the non-hole portion is set to 0, whereby the 8-bit number display portion (No.
0 to No 252) 7b and an 8-bit symbol display portion (7 unit code / 128 characters) 7a are formed respectively.

In FIG. 1, the cylinder body 1
Although the identification display portion 7 is formed by directly forming the small hole 8 on the side surface of a, the shaft 1b is formed as shown in FIG.
The small display 8 may be provided on the outer peripheral surface of a portion not directly related to the printing operation, or the identification display portion 7 may be formed by providing a small opening on the end surface 1b 'of the shaft 1b. 1 and 2, the small hole 8 is provided on the side surface of the cylinder body and the end surface or the outer peripheral surface of the shaft. However, instead of the small hole 8, a projecting piece as shown in FIG. 1,
Arrangement 8b in which 8a is provided in comb shape
It may be formed separately and fixed to the side surface of the cylinder body or the end surface or outer peripheral surface of the shaft. Further, as shown in FIG. 4, instead of the projecting piece 8a, a magnetic pole piece (N pole is 1 and S pole is 0 or a magnetic pole portion is 1 and no magnetic pole portion is 0), a plastic piece, a transmitter, etc. It is also possible to form an array body 8b provided with and to embed and fix the array body 8b on the side surface of the shaft separation type cylinder body.

The identification display portion 7 provided on the gravure cylinder 1 is provided in the vicinity of a gravure printing machine, a storage box,
It is read by a detector provided in plate making equipment and the detection signal is input to the control computer.

FIG. 5 is an explanatory view showing an example of an automatic gravure cylinder management method according to the present invention. In the drawing, A is a gravure printing factory, B is a rotary gravure printing machine, C is a gravure cylinder storage, and FIG. Ca is a regenerated cylinder storage unit, Cb is a pre-regeneration cylinder storage unit, D is a gravure plate making equipment, 9 is a detector of an identification display unit, 10 is a carriage, 11 is a carriage guide line, 12 is a control computer, and 13 is A carrier control device, 14 is an electric circuit.

A plurality of rotary gravure printing machines B are installed in the gravure printing factory A, a plurality of cylinders 1 are installed in each printing machine B, and a pre-installed position is provided in each cylinder. The designated symbol number is assigned. For example, at the cylinder mounting position of the printing machine B ₁ , No
1-10, No1-20, No1-30, No1-40
Symbol numbers such as are assigned. Further, the cylinders attached to the respective printing machines B are provided with symbols and numbers unique to the respective cylinders. For example, the printing machine B ₁
No. 11-1, No 1-21, No 1-31,
The serial number of No. 1-41 is attached, and No. 1-1 is attached to the cylinder that is mounted second by changing the version.
The symbols and numbers of No. 1, No 1-21, No 1-31, and No 1-42 are attached.

The gravure cylinder storage C is provided with a storage unit Ca for regenerated cylinders and a storage unit Cb for cylinders before being regenerated or in an intermediate processing state, and the gravure cylinders removed from the printing machine B by plate change. 1 is carried out to the storage cabinet C by the transport carriage 10 and stored in a predetermined location of the storage unit Cb, and the cylinder newly attached to the printing machine by the plate change is stored in the storage unit C by another transport carriage 10.
It is carried into the printing machine B from a predetermined position of a.

In the gravure plate making equipment D, a washing / plate surface removing process D _{1 of} the gravure cylinder 1 constituting a known gravure plate making process, a cylinder outer surface regenerating process D ₂ , an etching process D ₃ , finish polishing and image A finishing process D ₄ including a chrome plating process is provided, and the cylinder carried into the plate making equipment D from the storage unit Cb of the storage C by the transport carriage 10 has a predetermined image area on its outer surface. The plate surface having is re-formed. Further, the cylinder which has undergone the predetermined plate making process is carried into the predetermined portion of the storage section Ca of the storage C from the finishing process D ₄ and is stored there once, and then when the corresponding plate change order comes, Is conveyed to the printing machine B.

In this embodiment, the gravure cylinder removed from the rotary printing press B is temporarily stored in the storage section Cb of the storage C.
Although it is arranged to be carried into the plate making equipment D from the storage section Cb after that, it may be carried directly from the printing factory A to the plate making equipment D. It is also possible to take out an intermediately processed gravure cylinder from the middle of each plate making process D ₁ , D ₂ , D ₃ , Dn of the plate making factory D and temporarily store it in a predetermined location of the storage cabinet C. is there.

The carrier 10 is for traveling unmanned along the guide line 11 and is provided with a carrier (not shown) suitable for loading the cylinder 1. Further, the operation of the carrier vehicle 10 is automatically controlled through the carrier vehicle control device 13 by a command signal from the control computer 12, and the command of the computer 12 is sent between the printing factory A, the storage C and the plate making equipment D. The predetermined gravure cylinders are carried in and out of a predetermined place by traveling in accordance with each other in accordance with.

In this embodiment, the carriage 1 for transportation is used.
0 has the same structure as the automatic paper transporting cart for newspaper printing developed by the present inventor (Japanese Patent Laid-Open No. 1-256452), but the transporting cart 10 is a so-called automatic vehicle. It may have any structure as long as it can travel.

The detector 9 reads the binary values of the number display section 7b and the symbol display section 7a of the identification display section 7 attached to the gravure cylinder 1 according to the present invention, and controls the read serial number signal. Output to the computer 12, near each gravure printing machine B, cylinder storage C
Is provided in the vicinity of, and near the plate making factory D. still,
In the present embodiment, the detectors 9 are arranged at a plurality of locations as described above, but basically, one location may be provided at an appropriate location in the transfer system of the gravure cylinder.

The detector 9 itself is of a known type, and may be of any type as long as it can detect the binary value of the identification display section 7 by a mechanical, optical or magnetic method. Of course, it may be one.

[0024]

EXAMPLE An example of an automatic gravure cylinder management method will be described below with reference to FIG. 4 in printing factory A
The gravure printing machines B _{1 to} B ₄ are installed, and four gravure cylinders are provided for each. Also,
Although the printing press B ₁ .about.B ₄ in the plate exchange is performed at appropriate time intervals, each of the printing press is assumed to hold the spare gravure cylinder up to the second edition and 3rd edition. That is, the printing surface for the fourth plate is formed by regenerating the gravure cylinder for the first plate.

[0025] First, No1 to each printing press B ₁ ~B _4, No
Machine numbers 2, No. 3 and No. 4 are set. Next, a mounting position number is assigned to each cylinder of each printing machine B _{1 to} B ₄ . For example, in the case of the printing machine B ₁ , from the top of FIG.
No. 10, No 1-20, No 1-30, No 1-40 mounting position numbers are assigned. Further, a cylinder number is assigned to the cylinder for the first edition of each printing press. For example, the printing machine B ₁ has No1-11, No1-21, No1-3
1, No. 1-41 cylinder numbers are assigned. Similarly, a cylinder number is assigned to each of the second version cylinder and the third version cylinder of each printing press. For example, printing machine B ₁
No. 1-12, No. 1-22,
No1-32, No1-42, and No1-13, No1-23, No1-33, No1 for the third version cylinder.
Assign a cylinder number of -43.

The cylinder number assigned to each of the cylinders is displayed on the side surface of each cylinder by an identification display section 7 formed by combining projections 8a as shown in FIG.

Next, the storage location of each spare cylinder is designated in the storage C. For example, in the spare cylinder (for the second edition) of the printing machine B ₁ , No1-C-12, No1-C-22, N
o1-C-32, No1-C-42, No for the 3rd edition
1-C-13, No1-C-23, No1-C-33,
Specify the storage location of No1-C-43. Then, spare cylinders (4 cylinders × 2 plates × 4 units = 32) for the second and third plates of each of the printing machines B _{1 to} B ₄ are transferred to the designated location of the storage C.
Keep the book).

On the other hand, each data such as the printing machine number, each cylinder attachment position number, each cylinder number, and storage location number is input to the control computer 12. Further, in the control computer 12, when the cylinder for the first plate (for example, No1-11) of each printing machine is replaced and the plate is reprinted, the cylinder for the fourth plate (for example, No1-11).
14), and the cylinder for the second edition (for example, No1-1
A command for rewriting the third version cylinder (for example, No. 1-15) for the third version and a sixth version cylinder for the third version cylinder is input.

Now, each gravure printing machine B starts operation,
When the computer 12 issues a replacement command for the first edition of the printing press B _{1 after} the predetermined number of printings is completed, the carrier 1
0 is driven via the carriage control device 13, and No1-
The four cylinders No. 11 to No. 1-41 are sequentially carried into the plate making factory D, and another carriage 10 is installed in the storage C.
o1-12 to No1-42 4 cylinders printing machine B
Carry in the No. _1-10 to No. 1-40 cylinder positions. Although it is desirable to automatically load the gravure cylinder on the carrier 10 and replace the gravure cylinder, in this embodiment, the operator manually replaces the cylinder in the printing press. ing.

On the other hand, the cylinder N carried into the plate making equipment D
o1-11 to No1-41 are No1 to C-12 to No1 of the storage C by the transport carriage 10 after the plates are sequentially reprinted.
-It is carried in to the place of C-42, and is stored here until it is carried to the printing machine B ₁ as the next fourth edition.

Detectors 9 are provided at the exit of the storage C and the entrance of the plate making equipment C, respectively, and the binary value of the identification display portion 7 of each gravure cylinder which is detected by the detector 9 and is carried out. Is input to the control computer 12,
It is calculated and collated whether or not the command value from the computer 12 is met. In addition, the identification display section 7 by the detector 9
Of course, a so-called parity check is performed in the computer 12 so as to prevent misreading.

[0032]

According to the gravure cylinder of the present invention,
An identification display portion in binary notation is provided on the side surface of the cylinder body, the end surface of the shaft, or the outer surface, and a unique symbol / number is given to each gravure cylinder. As a result, by reading the identification display section with a detector, it becomes possible to output it as a control signal for controlling the use location (printing machine used) of the gravure cylinder, the replacement order, the storage location, etc. It is possible to perform automatic cylinder management with high efficiency and accuracy.

According to the automatic gravure cylinder management method of the present invention, a spare cylinder for the second and third editions is provided with an identification display portion for displaying a unique cylinder number at a designated location in the storage. The spare gravure cylinder to be automatically loaded into the printing press is checked by storing the value in the identification display section of the gravure cylinder with a detector. As a result, the required gravure cylinders can be automatically and accurately loaded into a predetermined printing machine, and efficient automatic cylinder management becomes possible.
Further, in the gravure cylinder automatic management method of the present invention,
The control computer newly specifies the cylinder number of the gravure cylinder that has been reprinted, and the gravure cylinder that has been reprinted is sequentially loaded and stored in the empty space that was shipped to the front of the storage cabinet. It becomes possible to continuously and smoothly perform replacement and reproduction of the plate surface of the gravure cylinder. The present invention has excellent practical utility as described above.

[Brief description of drawings]

FIG. 1 is a perspective view showing a first example of a gravure cylinder according to the present invention.

FIG. 2 is a perspective view showing a second example of the gravure cylinder according to the present invention.

FIG. 3 is a perspective view showing a third example of the gravure cylinder according to the present invention.

FIG. 4 is a perspective view showing an example of a shaft separation type gravure cylinder according to the present invention.

FIG. 5 is an overall system diagram of an automatic gravure cylinder management system.

FIG. 6 is a system diagram showing an embodiment of a gravure cylinder automatic management method.

FIG. 7 is a schematic explanatory diagram of a conventional gravure cylinder.

FIG. 8 is a front view showing an example of a conventional cylinder holding device.

FIG. 9 is a side view showing an example of a conventional cylinder holding device.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Gravure cylinder, 1a ... Cylinder body, 1b ... Cylinder shaft, 1c ... Intaglio surface, 2 ... Ink, 3 ... Support body, 3a ... Guide sprocket, 4 ... Shaft receiving body, 5
... Chain, 6 ... Drive sprocket, 7 ... Identification display,
7a ... Symbol display portion, 7b ... Number display portion, 8 ... Small hole, 8a
... projections, 8b ... array, 9 ... detector, 10 ... carrier truck,
11 ... Bogie guide line, 12 ... Control computer, 1
3 ... Transport carriage control device, 14 ... Electric line, A ... Gravure factory, B ... Rotary gravure printing machine, C ... Gravure cylinder storage, Ca ... Recycled cylinder storage, Cb ... Pre-regeneration cylinder storage, D … Plate making equipment

Claims (4)

[Claims] 1. A gravure cylinder (1) having a cylindrical cylinder body (1a), wherein the gravure cylinder (1) is provided on a side surface of the cylinder body (1a) or an end surface or an outer peripheral surface of a shaft (1b). ) Is provided with an identification display portion (7) for displaying the serial number assigned to () in binary. 2. The identification display part (7) is separately formed as an array of any one of a magnet piece, a plastic piece, a projecting piece, a small hole, and a transmitter, and the identification display part (7) is formed. The gravure cylinder according to claim 1, wherein the gravure cylinder is fixed to the side surface of (1a) or the end surface or outer peripheral surface of the shaft (1b). 3. In a printing facility equipped with a gravure printing machine (B) and a gravure cylinder storage (C), each spare gravure cylinder (1) used for plate replacement of the gravure printing machine (B) is unique. Each of the identification display units (7) for displaying the serial numbers of the numbers is stored in a predetermined position of the storage (C), and the numbers specified by an instruction from the control computer (12) when the plate is changed. The numbered gravure cylinder (1) is carried into the gravure printing machine (B) from the storage (C), and the serial number of the identification display section (7) is read by the detector (9) during the loading. A method for automatically managing a gravure cylinder, characterized in that a number signal is input to a control computer (12) and collated with the instruction content. 4. In a printing facility equipped with a gravure printing machine (B), a gravure cylinder storage (C) and a plate making facility (D), each of the spares used for changing the plate of the gravure printing machine (B). Each gravure cylinder (1) is provided with an identification display section (7) for displaying a serial number unique to the gravure cylinder (1), and the identification display section (7) is stored in a predetermined position of the storage box (C). The gravure cylinder (1) with the serial number specified by the instructions from the storage (C) is carried into the gravure printing machine (B), and the gravure cylinder (1) removed by the plate change is stored in the storage (C). Carrying out to a predetermined position or to a predetermined position of the plate making equipment (D), and automatically moving in and out of the gravure cylinder (1) via a carrier vehicle control device (13) according to a command from a control computer (12). Do It is carried out by the carrier vehicle (10), and the serial number of the identification display portion of each gravure cylinder (1) is read by the detector (9) during the loading and unloading and the serial number signal is input to the control computer (12). Then
A method for automatically managing a gravure cylinder, which is characterized by collating with an instruction content of a control computer (12).