JP7320423B2 - FAN-OUT CONTROL DEVICE, PRINTING MACHINE, AND PRINT CONTROL METHOD - Google Patents

Description

TECHNICAL FIELD The present disclosure relates to a fan-out suppression control device that suppresses web fan-out, a printing press equipped with the fan-out suppression control device, and a print control method.

A newspaper offset rotary press includes a feeder, a printer, a web path, and a folder. The printing apparatus is a tower type in which a plurality of printing units are arranged along the vertical direction so as to enable four-color printing. In the tower-type printing apparatus, printing is continuously performed in each printing unit while the web is conveyed from the bottom to the top. At this time, the web absorbs the dampening water and the printing pressure is applied, so that the web extends in the width direction, and the paper width differs between the printing units. This difference in paper width increases toward the upper stage, causing misregistration, so-called fan-out.

In recent years, printing on various print media has increased, and in newspaper printing, the layout of pages in color pages has become more complicated, and the use of lightweight paper with reduced pulp weight has also increased in consideration of the burden on the environment. there is Furthermore, regarding the rotary printing press, the conventional 4 × 2 machine (the diameter of the plate cylinder and the blanket cylinder are the same size) is changed to the 4 × 1 machine (the diameter of the plate cylinder is 1/2 the diameter of the blank cylinder). The number of printing plates has been halved), and there is no split plate cylinder (shell cylinder) that was used to adjust the color registration on the 4x2 machine. Out adjustment device has become an important position. Due to this background, fan-out adjustment requires a skillful technique that considers various printing conditions.

For example, Japanese Patent Application Laid-Open No. 2002-300003 discloses a technique for suppressing the occurrence of fan-out. The continuous paper width adjusting device described in Patent Document 1 adjusts the width of the continuous paper by bringing a plurality of pressing members into contact with the continuous paper to form waves parallel to the transport direction.

Japanese Patent No. 5509711

The above-mentioned fan-out occurs in the width direction due to the web absorbing dampening water and applying printing pressure. At this time, the fan-out is caused by the dampening water applied to the web, but the amount of fan-out differs according to other printing conditions. Conventionally, a skilled operator adjusts the amount of pressing by a plurality of pressing members according to the amount of fan-out. On the other hand, if the operator is not a skilled operator, the adjustment time will be long. In recent years, there has been a demand for various printing modes for newspaper offset rotary presses, and there has been a demand for simplification of fan-out correction work.

An object of the present disclosure is to solve the above-described problems, and to provide a fan-out suppression control device, a printing press, and a print control method for simplifying fan-out suppression control.

A fan-out suppression control device of the present disclosure for achieving the above object includes: a plurality of pressing members arranged at predetermined intervals in the width direction of a web; and a control device for controlling the amount of movement of the plurality of pressing members by the moving device based on the paper configuration information for printing on the web.

Further, the printing press of the present disclosure is a printing press in which a plurality of printing units are arranged at predetermined intervals along the vertical direction, and the web is conveyed upward in the vertical direction. The fan-out suppression control device is arranged therebetween.

Further, the print control method of the present disclosure includes the steps of slowly running a printing press, the steps of inputting a fan-out preset value set based on paper configuration information for printing on a web, and setting the fan-out preset value to starting printing on the web; fine-tuning the fan-out preset value; and accelerating to a predetermined print speed set in advance. .

According to the fan-out suppression control device, the printing press, and the printing control method of the present disclosure, it is possible to simplify the fan-out suppression control.

FIG. 1 is a schematic diagram showing the fan-out suppression control device of the first embodiment. FIG. 2 is a schematic diagram for explaining the paper configuration of the web. FIG. 3 is a table representing preset values for color plane configurations. FIG. 4 is a table showing preset values for the number of color pages. FIG. 5 is a graph showing roller position versus number of color pages. FIG. 6 is a table showing preset values for paper types. FIG. 7 is a graph representing control of roller position versus print speed. FIG. 8-1 is a graph representing the initial preset control of roller position versus print speed. FIG. 8-2 is a graph showing roller position adjustment control with respect to printing speed. FIG. 8-3 is a graph representing adjustment preset control of roller position versus print speed. FIG. 8-4 is a graph representing another adjustment control of roller position versus print speed. FIG. 9 is a flow chart representing a print control method. FIG. 10 is a schematic configuration diagram showing a newspaper offset rotary printing press. FIG. 11 is a schematic configuration diagram showing a printing unit in an offset rotary printing press for newspapers. FIG. 12 is a perspective view showing a fan-out suppression device. FIG. 13 is a schematic diagram showing the fan-out suppression control device of the second embodiment. FIG. 14 is a table showing preset values for the number of dampening nozzles. FIG. 15 is a schematic diagram showing the fan-out suppression control device of the third embodiment. FIG. 16 is a table showing preset values for image dose. FIG. 17 is a schematic diagram showing the fan-out suppression control device of the fourth embodiment. FIG. 18 is a schematic diagram showing the relationship between the paper roll width position and the fan-out amount for a plurality of paper roll widths. FIG. 19 is a table showing preset values for cigarette widths. FIG. 20 is a schematic diagram showing the fan-out suppression control device of the fifth 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 by this embodiment, and when there are a plurality of embodiments, the present disclosure also includes a combination of each embodiment. In addition, components in the embodiments include those that can be easily assumed by those skilled in the art, those that are substantially the same, and those that are within the so-called equivalent range.

[First embodiment]
In the first embodiment, the fan-out suppression control device, the printing press, and the printing control method of the present disclosure will be described by applying them to an offset rotary printing press for newspapers.

［Offset web press for newspapers］
FIG. 10 is a schematic configuration diagram showing a newspaper offset rotary printing press. The offset rotary press for newspapers is a 4×1 rotary press in which the size of the plate cylinder of the printing device is set to 4 page widths×1 page circumference.

As shown in FIG. 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. As shown in FIG. The paper feeder R has a plurality of (seven in this embodiment) paper feed units R1 to R7. The infeed device I has a plurality of (seven in this embodiment) infeed units I1 to I7. The printing apparatus U has a plurality (six units in this embodiment) of 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 (two in this embodiment) folding units F1 and F2.

Although six printing units U1 to U6 have been described, each of the printing units U1 to U6 is capable of four-color printing, and can be divided vertically into twelve printing units U11, U12, U21 . . . U61, U62 can be used. Also, although the two folding units F1 and F2 are arranged vertically, they are actually the operating side folding unit F1 and the drive side folding unit F2 arranged side by side in the direction orthogonal to the plane of the drawing. Furthermore, although the printing apparatus U has been described from two parts, it is only described as being divided into two parts for functional reasons, and in reality it is one apparatus.

In the paper feeder R, the paper feed units R1 to R7 have substantially the same configuration and have holding arms for holding three paper rolls on which the web W is rolled. By rotating the holding arm, the paper roll can be rotated to the paper feeding position. In the infeed device I, the infeed units I1 to I7 have substantially the same configuration and adjust the tension of the web W to be sent to the printing units U1 to U6 of the printing device U. As shown in FIG. As a result, the tension of the web W traveling in the printing apparatus U can be stably maintained at an appropriate value. The tension of the web W from the sheet feeding device R to the infeed device I is performed by a brake device (not shown) provided in the sheet feeding units R1 to R7.

In the printing apparatus U, the printing units U1 to U6 are multi-color printing units capable of performing two-sided four-color printing. However, each of the printing units U1 to U6 can be divided into upper and lower printing units U11 to U62 capable of double-sided two-color printing. The printing units U11 to U62 have substantially the same configuration and have ink supply devices, plate cylinders, blanket cylinders, and the like. In this embodiment, each of the printing units U1 to U6 has a plate cylinder whose circumference is set to the vertical length of one page of a newspaper (printed matter), and a blanket cylinder whose circumference is an integral multiple of the plate cylinder circumference. set. In each of the printing units U1 to U6, the circumferential length (diameter) of the plate cylinder and the circumferential length (diameter) of the blanket cylinder may be set to be the same.

In the web path device D, the web path unit D1 is provided for the printing units U1-U3, and the web path unit D2 is provided for the printing units U4-U6. The web pass units D1 and D2 have substantially the same configuration, and serve as a slitter for cutting the web W in the longitudinal direction (conveying direction of the web W) at the central portion in the width direction, and a conveying path for the longitudinally cut web W. It has a turn bar for setting, a compensator for adjusting the conveying position of the web W in the vertical and longitudinal directions, and the like.

Each web W printed by the printing units U1 to U3 is vertically cut by the slitter in the web pass unit D1, the conveying path is changed by the turn bar, and the conveying position is adjusted by the compensator. superimposed. Each web W printed by the printing units U4 to U6 is longitudinally cut by the slitter in the web pass unit D2, the conveying path is changed by the turn bar, and the conveying position is adjusted by the compensator. superimposed in order.

In the folding machine F, two folding units F1 and F2 are arranged on the operating side and the driving side. When a plurality of webs W1 are superimposed and introduced from the web path unit D1, the folding unit F1 vertically folds the web W1, cuts it horizontally to a predetermined length, folds it horizontally to form a signature, and output as Further, when a plurality of webs W2 are superimposed and introduced from the web path unit D2, the folding unit F2 vertically folds the webs W2, horizontally cuts them to a predetermined length, and horizontally folds them to form signatures. , as a newspaper.

[Print unit]
Here, the printing unit U1 in the printing apparatus U will be described in detail. The printing units U2 to U6 have the same configuration, and the description thereof is omitted. FIG. 11 is a schematic configuration diagram showing a printing unit in an offset rotary printing press for newspapers.

As shown in FIG. 11, the printing unit U1 is an H-shaped tower unit so as to enable four-color printing. In the printing unit U1, four stacks 21, 22, 23, and 24 of black, indigo, red, and yellow are arranged along the transport direction of the web W (the direction from bottom to top in FIG. 11). Configured. The stacks 21, 22, 23, and 24 each have a symmetrical roller arrangement.

The stacks 21 , 22 , 23 , 24 are laterally opposed to each other, and the blanket cylinders 31 a , 31 b , 32 a , 32 b , 33 a , 33 b , 34 a , 34 b can contact with each other with the transport path of the web W interposed therebetween. Blanket cylinders 31a, 31b, 32a, 32b, 33a, 33b, 34a, and 34b are in contact with plate cylinders 41a, 41b, 42a, 42b, 43a, 43b, 44a, and 44b. The stacks 21, 22, 23, 24 are provided with ink supply devices 51a, 51b, 52a, 52b, 53a, 53b, 54a, 54b for plate cylinders 41a, 41b, 42a, 42b, 43a, 43b, 44a, 44b. be provided. Dampening devices 61a, 61b, 62a, 62b, 63a, 63b, 64a and 64b are provided for the plate cylinders 41a, 41b, 42a, 42b, 43a, 43b, 44a and 44b.

The printing unit U1 is provided with fan-out suppression devices 71, 72, and 73. FIG. A fan-out suppression device 71 is arranged between the stacks 21 and 22 . A fan-out suppression device 72 is arranged between the stacks 22 and 23 . A fan-out suppression device 73 is arranged between the stacks 23 and 24 . The fan-out suppression devices 71, 72, 73 have substantially the same configuration. When the web W is printed by the printing unit U1, the web W absorbs dampening water and a printing pressure is applied. As a result, the web W extends in the width direction, causing misregistration, so-called fan-out. Fan-out suppression devices 71, 72, and 73 suppress this fan-out.

[Fan-out suppression device]
Here, the fan-out suppression devices 71, 72, and 73 will be described. Note that the fan-out suppressing devices 71, 72, and 73 have the same configuration, so the fan-out suppressing device 72 will be described, and the description of the fan-out suppressing devices 71 and 73 will be omitted. FIG. 12 is a perspective view showing a fan-out suppression device.

As shown in FIG. 12 , the fan-out suppressing device 72 includes a plurality of pressing rollers (pressing members) 81 and a moving device 82 .

A plurality of pressure rollers 81 are arranged on one surface side of the running web W. As shown in FIG. The plurality of pressure rollers 81 are arranged in the width direction of the web W at predetermined intervals (preferably even intervals). The moving device 82 can press the web W by moving the plurality of pressing rollers 81 .

A support plate 83 is arranged on one side of the web W. As shown in FIG. The support plate 83 is arranged along the width direction of the web W and horizontally. The support plate 83 is arranged apart from one side of the web W. As shown in FIG. A plurality of (eight in this embodiment) brackets 84 are fixed to the lower surface of the support plate 83 . The plurality of brackets 84 are arranged at predetermined intervals in the longitudinal direction of the support plate 83 (the width direction of the web W). A plurality of (eight in this embodiment) pressure rollers 81 are rotatably supported by each bracket 84 by a support shaft 85 . The support shaft 85 extends along the width of the web W. As shown in FIG.

The moving devices 82 are arranged on both sides of the web W in the width direction. The moving device 82 has a driving device 86 , a screw shaft 87 and a moving member 88 . The drive 86 is fixed to the press frame 89 . The screw shaft 87 is arranged in a direction orthogonal to the web W. As shown in FIG. The screw shaft 87 is rotatable in forward and reverse directions by a driving device 86 . A moving member 88 is screwed onto the screw shaft 87 . The end of the support plate 83 is rotatably connected to the moving member 88 .

Therefore, when the driving device 86 is driven and the screw shaft 87 is rotated in the forward rotation direction, the moving member 88 advances (moves to the upper right in FIG. 12). Then, the support plate 83 advances, and the plurality of pressure rollers 81 move in the direction of approaching and pressing the web W. As shown in FIG. On the other hand, when the driving device 86 is driven to rotate the screw shaft 87 in the reverse rotation direction, the moving member 88 retreats (moves downward to the left in FIG. 12). Then, the support plate 83 retreats, and the plurality of pressure rollers 81 move away from the web W in the direction of releasing the pressure.

Here, the plurality of pressure rollers 81 are moved in a direction approaching the web W, and the plurality of pressure rollers 81 press the running web W from one side. Then, the web W becomes wavy because the portions pressed by the pressing rollers 81 protrude to the other side. Therefore, the widthwise extension of the web W due to printing is corrected by forming a wavy shape by the pressure rollers 81, and the length before printing, that is, the fan-out is corrected. By adjusting the amount of movement of each pressing roller 81 by the moving device 82, the pressing amount of the web W by each pressing roller 81 can be adjusted. In this case, the amount of pressing of the web W by each pressing roller 81 can be varied in the width direction of the web W by varying the amount of movement of the support plate 83 by the moving devices 82 on both sides.

[Fan-out suppression control device]
FIG. 1 is a schematic diagram showing the fan-out suppression control device of the first embodiment, FIG. 2 is a schematic diagram for explaining the paper surface configuration of the web, and FIG. 3 is a table and diagram showing preset values for the color surface configuration. 4 is a table showing preset values with respect to the number of color pages, and FIG. 5 is a graph showing roller positions with respect to the number of color pages.

As shown in FIG. 1 , the fan-out suppression control device 90 has the fan-out suppression device 72 described above and a control device 91 . The control device 91 controls the amount of movement of the plurality of pressure rollers 81 by the moving device 82 of the fan-out suppressing device 72 based on the paper configuration information for printing on the web W. FIG.

Here, the page structure information is color page structure information 101 for printing on the web W and color page number information 102 for printing on the web W. FIG.

As shown in FIG. 2, in the printing unit U1, eight plate cylinders 41a, 41b, 42a, 42b, 43a, 43b, 44a, and 44b are arranged symmetrically along the web W transport direction. A newspaper offset rotary press 10 (see FIG. 10) of the first embodiment is a 4×1 rotary press. Therefore, four printing plates (not shown) can be detachably attached to each of the plate cylinders 41a, 41b, 42a, 42b, 43a, 43b, 44a, and 44b in the axial direction. In other words, the printing unit U1 can form an eight-page sheet configuration on the front and back sides of the web W. FIG. The 8-page layout is either a color side or a monochrome side.

The printing unit U1 can supply black, indigo, magenta, and yellow inks to the web W from the bottom to the top. That is, the plate cylinders 41a and 41b supply black ink, the plate cylinders 42a and 42b supply indigo ink, the plate cylinders 43a and 43b supply red ink, and 44a and 44b supply yellow ink to the web W, respectively. Further, when supplying each ink to the web W, dampening water is also supplied. Therefore, when performing color printing on the web W, all the plate cylinders 41a, 41b, 42a, 42b, 43a, 43b, 44a, 44b supply the web W with ink and dampening water. On the other hand, only the plate cylinders 41a and 41b supply the web W with ink and dampening solution when the web W is subjected to monochromatic surface printing. Further, since four printing plates can be mounted on each of the plate cylinders 41a, 41b, 42a, 42b, 43a, 43b, 44a, and 44b in the axial direction, color printing and monochrome printing can be performed for the four printing plates. Printing becomes possible. In the example shown in FIG. 2, the color information printed on the web W is indicated by Δ marks. As indicated by the Δ mark, at the exit point of the printing unit U1, the front side of the web is printed in four colors, and the back side is printed in black. Here, description of the blanket cylinders 31a, 31b, 32a, 32b, 33a, 33b, 34a, and 34b is omitted.

That is, in the printing unit U1 capable of color printing and monochrome printing of eight front and back pages, four printing plates can be mounted on the plate cylinders 41a, 41b, 42a, 42b, 43a, 43b, 44a, and 44b. . Therefore, 32 printing plates can be attached to all the plate cylinders 41a, 41b, 42a, 42b, 43a, 43b, 44a, 44b. In other words, when all eight pages are to be printed in black and white, only the plate cylinders 41a and 41b are used for printing in one color, and eight printing plates are used. On the other hand, when all eight pages are to be printed in color, printing is performed with the plate cylinders 41a, 41b, 42a, 42b, 43a, 43b, 44a, and 44b because of four-color printing, and 32 printing plates are used. In the case shown in FIG. 2, since there are 3 pages of color printing and 5 pages of monochrome printing, 17 printing plates (3 pages of color printing×4 colors+5 pages of monochrome printing×1 color) are used. Hereinafter, the number of printing plates used is referred to as the number of pages.

For this reason, for example, in FIG. 2, of the plate cylinders 41a, 41b, 42a, 42b, 43a, 43b, 44a, and 44b, ink and dampening water are supplied to the hatched portions, and the other white portions are supplied. is not supplied with ink and dampening solution. At this time, for the printing unit U1, the color page configuration information 101 is 4 colors/1 color, and the color page number information 102 is 3 color pages. That is, finally, in the printing unit U1, printing is performed on the front and back sides of the web W, four colors of ink are superimposed on the front surface of the web W to form a color plane (four colors), and the inks are superimposed on the back side. is not performed and the entire surface is black (one color), the color page configuration information 101 is four colors/one color. Further, since the printing unit U1 forms a page configuration of three color pages and five monochrome pages on the front and back sides of the web W, the color page number information 102 is three color pages.

Then, as shown in FIG. 3, a fan-out preset value (PS value) for the color page structure information 101 is set in advance. The fan-out preset value is the amount of movement of each pressing roller 81 by the moving device 82 . Here, in the color page configuration information 101, the amount of ink supplied to the web W and the amount of dampening water supplied to the web W are greater by 4C than 1C. Therefore, the relationship among the fan-out preset values 1A, 2A, 3A, and 4A is 1A>2A=3A>4A.

Also, as shown in FIG. 4, a fan-out preset value (PS value) for the color page number information 102 is set in advance. The fanout preset values in FIG. 4 are for printing unit U1. Here, in the color page number information 102, the larger the number of color pages, the larger the number of sheets to be printed, so the amount of ink supplied to the web W and the amount of dampening water supplied are large. Therefore, the fan-out preset values 1B, 2B, 3B, 4B, . That is, as shown in FIG. 5, the roller movement amount (fan-out preset value) for the color page number information 102 increases stepwise as the color page number increases. In addition, you may make it increase linearly.

The control device 91 controls the amount of movement of the plurality of pressure rollers 81 by the moving device 82 based on color page configuration information or color page number information for printing on the web W. FIG. That is, the fan-out preset value may be set based on the color page structure information of FIG. 3, or the fan-out preset value may be set based on the color page number information of FIG. Note that the control device 91 may control the amount of movement of the plurality of pressure rollers 81 by the moving device 82 based on both color page configuration information and color page number information for printing on the web W. FIG.

Further, as shown in FIG. 1, the control device 91 controls the amount of movement of the plurality of pressure rollers 81 by the moving device 82 in the printing unit U1 based on the paper quality information 103 of the web W. As shown in FIG. Furthermore, the control device 91 controls the amount of movement of the plurality of pressure rollers 81 by the moving device 82 in the printing unit U1 based on the printing speed information (conveyance speed information of the web W) 104 . At this time, the control device 91 controls the amount of movement of the plurality of pressure rollers 81 according to the conveying speed of the web W so as to be different during acceleration and deceleration.

6 is a table showing preset values for paper types, FIG. 7 is a graph showing control of roller position with respect to printing speed, FIG. 8-1 is a graph showing initial preset control of roller position with respect to printing speed, FIG. 2 is a graph showing adjustment control of the roller position with respect to the printing speed, FIG. 8-3 is a graph showing adjustment preset control of the roller position with respect to the printing speed, and FIG. 8-4 is another adjustment control of the roller position with respect to the printing speed. It is a graph showing

As shown in FIG. 6, a fan-out preset value (PS value) for the paper quality information 103 of the web W is set in advance. The paper quality information 103 of the web W corresponds to paper types 1 to 4. Paper types 1 to 3 are rough paper, and paper type 4 is white paper. The dry paper is XL paper (ultralight newsprint), SL paper (ultralight newsprint), and L paper (lightweight newsprint). Here, since the basis weight of raw paper is larger for L paper than for XL paper, even if the same amount of water is supplied, L paper has a smaller water content ratio to the whole paper than SL paper and XL paper. Become. Therefore, the relationship among the fan-out preset values 1C, 2C, and 3C is 1C>2C>3C. In addition, white paper is less likely to absorb moisture than dry paper. Therefore, the relationship among the fan-out preset values 1C, 2C, 3C, and 4C including the raw paper is 1C>2C>3C>4C.

In this case, a reference value is set for the fan-out preset value set based on the color page structure information or the color page number information. This reference value is, for example, the fan-out preset value 3C for L paper. Then, if the web W is L paper with respect to the fan-out preset value set based on the color paper configuration information or the color page number information, the fan-out preset value is used without correction, and the web W is L. If it is not paper, the fan-out preset value is increased or decreased according to the type of paper for correction.

As shown in FIG. 7, when the moving amount (position) of each pressure roller 81 by the moving device 82 is set according to the fan-out preset value, the conveying speed of the web W, that is, the printing speed is increased to start printing. implement. When the printing speed increases from time t0, the amount of movement of each pressing roller 81 by the moving device 82 is adjusted. That is, when the conveying speed of the web W increases, the arrival time between the stacks 21, 22, 23, and 24 becomes shorter, and the amount of fan-out decreases. Therefore, as the transport speed of the web W increases, the amount of movement of each pressing roller 81 by the moving device 82 is reduced step by step. Then, at time t1, when the conveying speed of the web W, that is, reaches a predetermined printing speed, the amount of movement of each pressing roller 81 by the moving device 82 is made constant. On the other hand, as the printing nears the end and the conveying speed of the web W decreases from time t2, the amount of movement of each pressing roller 81 by the moving device 82 is increased step by step. After that, at time t3, printing ends.

In this case, when the printing speed is increased from the paper detection speed V1, the amount of movement of the pressure roller 81 is decreased. Then, when the printing speed reaches a predetermined printing speed V2, the amount of movement of the pressing roller 81 is made constant. On the other hand, when the printing is nearing the end and the printing speed is reduced from the predetermined printing speed V2 to the paper inspection speed V1, the amount of movement of the pressure roller 81 is increased. At this time, the amount of movement of the pressure roller 81 when the printing speed increases is made different from the amount of movement of the pressure roller 81 when the printing speed decreases. That is, since the amount of fan-out of the web W differs between when the printing speed increases and when it decreases, the optimum roller movement amount is set according to the fluctuation of the fan-out amount.

More specifically, when the printing speed is increased, as shown in the lower left table of FIG. 7, the amount of movement of the pressure roller 81 is decreased stepwise as the number of copies printed per unit time increases. For example, press amount Pu1 = -3.0 at printing speed Vu1 (60,000 copies/h), press amount Pu2 = -3.5 at printing speed Vu2 (80,000 copies/h), and print speed Vu3 (100,000 copies/h). copies/h), press amount Pu3=-2.9, print speed Vu4 (120,000 copies/h), press amount Pu4=-2.7, print speed Vu5 (140,000 copies/h), press amount Pu5 =-2.5. On the other hand, when the printing speed is decreased from the predetermined printing speed V2 to the paper detection speed V1, the amount of movement of the pressure roller 81 is increased stepwise. For example, press amount Pd5=+2.5 at print speed Vd5 (130,000 copies/h), press amount Pd4=+2.7 at print speed Vd4 (110,000 copies/h), and print speed Vd3 (90,000 copies/h). h), pressing amount Pd3=+2.9, pressing amount Pd2=+3.5 at printing speed Vd2 (70,000 copies/h), pressing amount Pd1=+3.0 at printing speed Vd1 (60,000 copies/h). and Here, in the present embodiment, the printing speed for changing the amount of movement of the pressing roller 81 is different when increasing the printing speed and when decreasing it.

Further, as shown in FIG. 1, the control device 91 has an initial preset value PS1 for controlling the amount of movement of the plurality of pressure rollers 81 by the moving device 82, and the initial preset value PS1 is adjusted by the operator's fine adjustment operation. When the preset value PS2 is rewritten, the adjustment preset value PS2 is stored, and the amount of movement of the plurality of pressure rollers 81 by the moving device 82 is controlled by the adjustment preset value PS2. Here, the difference between the initial preset value PS1 and the adjusted preset value PS2 is the roller position at the paper detection speed V1, and there is no change in the roller movement amount at each printing speed.

As shown in FIG. 8-1, an initial preset value PS1 is set. For the initial preset value PS1, as described with reference to FIG. 7, the amount of movement of the pressure roller 81 when increasing and decreasing the printing speed is set individually. As shown in FIG. 8-2, when changing the amount of movement of the pressure roller 81 with respect to the increase in printing speed based on the initial preset value PS1, the operator changes the initial preset value PS1 at the paper inspection speed V1. Fine adjustment of the roller position may be performed. In this case, instead of the initial preset value PS1, an adjusted preset value PS2 in which the roller position at the paper detection speed V1 is changed is set. Controller 91 stores adjusted preset value PS2 along with initial preset value PS1. Thereafter, the control device 91 changes the amount of movement of the pressure roller 81 with respect to the increase in printing speed based on the adjustment preset value PS2.

When the adjustment preset value PS2 is set, the control device 91 preferably stores the set initial preset value PS1 and the adjustment preset value PS2 as a plurality of fan-out preset values. For example, as shown in FIG. 8-3, preset values PS1, PS2, and PS3 are saved as fan-out preset values in which different amounts of movement of the pressure roller 81 with respect to changes in printing speed are set. Note that the preset values PS1, PS2, and PS3 are examples, and the patterns are not limited to these. An optimum pattern may be set through experiments or the like according to the printing conditions.

Further, as shown in FIG. 8-4, when changing the movement amount of the pressure roller 81 while the printing speed is increasing based on the initial preset value PS1, the operator changes the roller movement amount with respect to the initial preset value PS1. may be fine-tuned. For example, as described above, with the initial preset value PS1, the pressing amount Pu1=−3.0 at the printing speed Vu1, the pressing amount Pu2=−3.5 at the printing speed Vu2, and the pressing amount Pu3=−3.5 at the printing speed Vu3. 2.9. While the printing speed is increasing from Vu1 to Vu2, the operator manually adds the pressing amount Pu=-3.0. Therefore, the pressing amount Pu1 at the printing speed Vu1 becomes -6.0, and the pressure roller 81 is moved by adding the pressing amount (movement amount adjustment processing) by the operator. After that, the pressing amount Pu2=-3.5 at the printing speed Vu2, and there is no change in the pressing amount thereafter. The roller position is detected by a detection sensor (not shown) and output to the control device 91 . Therefore, the control device 91 can confirm the roller position based on the output of the detection sensor and calculate the pushing amount Pu=-3.0 manually added by the operator. As a result, an adjustment preset value PS4 is set in which the roller position at the paper detection speed V1 is changed by the pushing amount Pu=-3.0. Controller 91 stores adjusted preset value PS4 along with initial preset value PS1.

[Print control method]
FIG. 9 is a flow chart representing a print control method.

The print control method of the first embodiment includes the step of slowly running the printing unit U1 (newspaper offset rotary press 10), and the fan-out preset value set based on the paper surface configuration information for printing on the web W. inputting; controlling the fan-out suppression devices 71, 72, 73 based on the fan-out preset value; starting printing on the web W; fine-tuning the fan-out preset value; and accelerating to a determined predetermined printing speed.

As shown in FIGS. 1 and 9, in the newspaper offset rotary press 10 (see FIG. 10), when the web W threading operation, the paper stretching operation, the tension control, etc., are completed, in step S11, the slow motion is performed. Driving is started. Slow running is a state in which printing is not performed, and the newspaper offset rotary printing press 10 is operated at the lowest speed. Then, in step S12, a fan-out preset value (initial preset value PS1) set based on the color page configuration information 101 or the color page number information 102 and the paper quality information 103 of the web W is input. The fan-out preset value is set based on the color page configuration information 101 , the color page number information 102 and the paper quality information 103 . Further, in step S13, a preset register value for the web W is input. Then, in step S14, printing is started.

At step S15, the operator looks at the printed matter and finely adjusts the fan-out preset value according to the actual fan-out amount. In step S16, the finely adjusted fan-out preset value (adjustment preset value PS2) is stored. Here, if fine adjustment is unnecessary, the initial preset value (PS1) remains unchanged. Then, in step S17, the printing speed is increased from the paper detection speed V1, and acceleration operation is started. At this time, in step S18, the amount of movement of the pressure roller 81 is controlled according to the increase in printing speed based on the fan-out preset value (PS1 or PS2), and the amount of movement of the pressure roller 81 is decreased. At this time, the operator manually adjusts the amount of movement of the pressure roller 81 in step S19. The added or decreased amount of movement of the pressing roller 81 is detected by a detection sensor, and stored as an adjustment preset value PS4 that takes into account the added or decreased amount of movement of the pressing roller 81 . Then, in step S20, when the printing speed reaches a predetermined printing speed V2, the amount of movement of the pressure roller 81 is made constant. After that, in step S21, when the printing is nearing the end, the printing speed is reduced to start the deceleration operation. At this time, in step S22, the amount of movement of the pressure roller 81 is controlled according to the decrease in printing speed based on the fan-out preset value (PS1 or PS2), and the amount of movement of the pressure roller 81 is increased. Then, in step S23, printing ends.

[Second embodiment]
FIG. 13 is a schematic diagram showing the fan-out suppression control device of the second embodiment, and FIG. 14 is a table showing preset values for the number of dampening nozzles. Members having the same functions as those of the above-described first embodiment are denoted by the same reference numerals, and detailed description thereof will be omitted.

As shown in FIG. 13 , the fan-out suppression control device 90A has a fan-out suppression device 72 and a control device 91 . The control device 91 controls the amount of movement of the plurality of pressure rollers 81 by the moving device 82 in the fan-out suppressing device 72 based on the paper configuration information for printing on the web W. FIG. Here, the sheet configuration information is dampening water information 105 for supplying dampening water to the web W. FIG. Further, the control device 91 controls the amount of movement of the plurality of pressure rollers 81 by the moving device 82 in the fan-out suppressing device 72 based on the paper quality information 103 and the printing speed information 104 of the web W. FIG.

As shown in FIG. 11, in the printing unit U1, eight plate cylinders 41a, 41b, 42a, 42b, 43a, 43b, 44a, and 44b are arranged symmetrically along the web W transport direction. For each plate cylinder 41a, 41b, 42a, 42b, 43a, 43b, 44a, 44b, an ink supply device 51a, 51b, 52a, 52b, 53a, 53b, 54a, 54b and a dampening device 61a, 61b, 62a are provided. , 62b, 63a, 63b, 64a, 64b are provided. Further, as shown in FIG. 2, the printing unit U1 has an eight-page page configuration with the plate cylinders 41a, 41b, 42a, 42b, 43a, 43b, 44a, and 44b.

For this reason, for example, in FIG. 2, of the plate cylinders 41a, 41b, 42a, 42b, 43a, 43b, 44a, and 44b, ink and dampening water are supplied to the hatched portions, and the other white portions are supplied. is not supplied with ink and dampening solution. At this time, for the fan-out suppression device 72, the dampening water information 105 is the dampening water paper surface number of 11 . In other words, the printing unit U1 can form 16 pages on the front and back of the web W. FIG. Of the 16 pages, there are 5 black-and-white pages, 1 on the plate cylinder 41a and 4 on the plate cylinder 41b, and 6 color pages, 3 on the plate cylinder 41a and 3 on the plate cylinder 42a. , the dampening water information 105 becomes 11 dampening water sheets.

At this time, for the fan-out suppression device 71, the dampening water information 105 is eight sheets of dampening water. In other words, the printing unit U1 can form eight paper surface configurations on the front and back sides of the web W. FIG. Of the eight pages, the dampening solution information 105 includes five monochrome pages, one on the plate cylinder 41a and four on the plate cylinder 41b, and three color pages on the plate cylinder 41a. The water surface number becomes 8. For the fan-out suppression device 73, the dampening water information 105 is 14 dampening water sheets. In other words, the printing unit U1 can form 24 pages on the front and back of the web W. FIG. Of the 24 pages, the dampening water information 105 has 5 monochrome pages, 1 page for the printing cylinder 41a and 4 pages for the printing cylinder 41b, and 9 color pages, 3 pages for each of the printing cylinders 41a, 42a, and 43a. Since there are four sides, the number of dampening water sheets is 14.

Then, as shown in FIG. 14, a fan-out preset value (PS value) for the dampening water information 105 is set in advance. The fanout preset values in FIG. 14 are for the fanout suppressor 72 . Here, in the dampening water information 105, the amount of dampening water supplied to the web W increases as the number of dampening water sheets increases. Therefore, the fan-out preset values 8D, 9D, 10D, .

11, dampening devices 61a, 61b, 62a, 62b, 63a, 63b, 64a, and 64b supply different amounts of dampening water depending on the width of the web. As shown in FIG. 2, each plate cylinder 41a, 41b, 42a, 42b, 43a, 43b, 44a, 44b has four printing plates (not shown) detachable in the axial direction. Here, printing may be performed with only three printing plates attached to each of the plate cylinders 41a, 41b, 42a, 42b, 43a, 43b, 44a, and 44b. In this case, no dampening water is supplied to the areas (end areas in the axial direction) of the plate cylinders 41a, 41b, 42a, 42b, 43a, 43b, 44a, and 44b on which the printing plates are not mounted. Reduce the amount of dampening water supplied. Therefore, even in such a case, the fan-out preset value is set based on the dampening water information 105 (number of dampening water sheets), and the amount of movement of the plurality of pressure rollers 81 by the moving device 82 is controlled.

Note that the print control method of the second embodiment is the same as that of the first embodiment, so the description is omitted.

[Third Embodiment]
FIG. 15 is a schematic diagram showing the fan-out suppression control device of the third embodiment, and FIG. 16 is a table showing preset values for image dose. , are denoted by the same reference numerals, and detailed description thereof is omitted.

As shown in FIG. 15 , the fan-out suppression control device 90B has a fan-out suppression device 72 and a control device 91 . The control device 91 controls the amount of movement of the plurality of pressure rollers 81 by the moving device 82 in the fan-out suppressing device 72 based on the paper configuration information for printing on the web W. FIG. Here, the sheet configuration information is the image dose information 106 of the printing plate for printing on the web W. FIG. Further, the control device 91 controls the amount of movement of the plurality of pressure rollers 81 by the moving device 82 in the fan-out suppressing device 72 based on the paper quality information 103 and the printing speed information 104 of the web W. FIG.

As for the drawing amount information 106, pattern data (standard data/image information) is input from a server (not shown), and the drawing rate (drawing amount) for each ink key is calculated based on this pattern data. This is the image dose information 106 . The control device 91 sets the fan-out preset value based on the image dose information 106 . As shown in FIG. 16, a fan-out preset value (PS value) for the image dose information 106 is set in advance. The fanout preset values in FIG. 16 are for the fanout suppressor 72 . Here, in the image amount information 106, the larger the image amount, the larger the amount of ink supplied to the web W and the amount of dampening water supplied. Therefore, the relationship between the fan-out preset values 1E, 2E, 3E, . . . , 32E is 1E<2E<3E, .

Note that the print control method of the third embodiment is the same as that of the first embodiment, and thus the description thereof is omitted.

[Fourth Embodiment]
FIG. 17 is a schematic diagram showing the fan-out suppression control device of the fourth embodiment, FIG. 18 is a schematic diagram showing the relationship between the cigarette width position and the fan-out amount for a plurality of cigarette widths, and FIG. 4 is a table showing preset values;

As shown in FIG. 17 , the fan-out suppression control device 90C has a fan-out suppression device 72 and a control device 91 . The control device 91 controls the amount of movement of the plurality of pressure rollers 81 by the moving device 82 in the fan-out suppressing device 72 based on the paper configuration information for printing on the web W. FIG. Here, the paper configuration information is paper roll width position information 107 for printing on the web W. FIG. Further, the control device 91 controls the amount of movement of the plurality of pressure rollers 81 by the moving device 82 in the fan-out suppressing device 72 based on the paper quality information 103 and the printing speed information 104 of the web W. FIG.

The paper roll width position information 107 is width information of the web W to be printed (paper roll width information) and conveying position information of the web W (paper roll position information). As shown in FIG. 18, for example, a roll of paper in which a web W of the same width is taken up for a 4-page width printing cylinder is called A roll, and a 3-page width web for a 4-page width printing cylinder. A paper roll on which W is wound is called a C roll, and a paper roll on which a 2 page wide web W is wound on a 4 page wide plate cylinder is called a D roll. Here, A roll, C roll, and D roll are cigarette width information. In addition, there are cases where the roll paper is shifted to one side (operating side) or the other side (driving side) in the width direction with respect to the 4-page width plate cylinder. Here, the transport position of the web W is the paper roll position information. As shown in FIG. 18, the web W tends to have a fan-out f at the ends in the width direction.

In other words, when a paper roll of the same width is used for a 4-page wide plate cylinder, it will be referred to as roll A. Further, when a 3-page wide paper roll is used for a 4-page wide plate cylinder and the roll paper is shifted toward the operation side, this case is referred to as C roll operation. When a 3-page wide paper roll is used for a 4-page wide plate cylinder and the paper is shifted toward the drive side, this case is called C roll drive. Further, when a 2-page wide paper roll is used for a 4-page wide plate cylinder and the paper is shifted toward the operation side, this case is referred to as D roll operation. When a 2-page wide paper roll is used for a 4-page wide plate cylinder and positioned at the center, it is referred to as D-roll. When a 2-page wide paper roll is used for a 4-page wide plate cylinder and the paper is shifted toward the drive side, this case is called D roll drive.

As shown in FIGS. 18 and 19, a fan-out preset value (PS value) for the paper roll width position information 107 is set in advance. The paper roll width position information 107 corresponds to the width of the web (rolled paper) W and the transport position. That is, 1F, 2F, 3F, 4F, 5F, and 6F are set as PS values for the A winding, C winding operation, C winding drive, D winding operation, D winding middle, and D winding driving. The web W tends to fan out at the ends in the width direction. Therefore, as shown in FIGS. 17 to 19, when 1F and 5F are used as the PS values, the amount of movement of the plurality of pressure rollers 81 by the driving device 86 on the driving side and the operating side is substantially the same (the driving side and the operating side is small). On the other hand, when 2F and 4F are used as PS values, the amount of movement of the plurality of pressing rollers 81 by the driving device 86 on the operating side is larger than that by the driving device 86 on the driving side. Also, when 3F and 6F are used as PS values, the amount of movement of the plurality of pressing rollers 81 by the drive device 86 on the drive side is larger than that by the drive device 86 on the operation side.

Note that the print control method of the fourth embodiment is the same as that of the first embodiment, and thus the description thereof is omitted.

[Fifth embodiment]
FIG. 20 is a schematic diagram showing the fan-out suppression control device of the fifth embodiment. Members having the same functions as those of the above-described embodiments are denoted by the same reference numerals, and detailed description thereof will be omitted.

As shown in FIG. 20, the fan-out suppression control device 90D has a fan-out suppression device 72A and a control device 91. As shown in FIG. The control device 91 controls the amount of movement of the plurality of pressure rollers 81 by the moving device 82 in the fan-out suppressing device 72A based on the paper configuration information for printing on the web W. FIG. Here, the page configuration information is the color page distribution information 108 for printing on the web W. FIG. Further, the control device 91 controls the amount of movement of the plurality of pressure rollers 81 by the moving devices 82a, 82b, 82c, and 82d in the fan-out suppressing device 72A based on the paper quality information 103 and the printing speed information 104 of the web W. FIG.

As shown in FIG. 2, each plate cylinder 41a, 41b, 42a, 42b, 43a, 43b, 44a, 44b has four printing plates (not shown) detachable in the axial direction. As shown in FIG. 20, the fan-out suppressing device 72A of the fifth embodiment has four moving devices 82a, 82b, 82c and 82d, each of which has two moving devices 82a, 82b, 82c and 82d. The pressing roller 81 is movable. Each moving device 82a, 82b, 82c, 82d sandwiches the web W at a position facing four areas of each of the plate cylinders 41a, 41b, 42a, 42b, 43a, 43b, 44a, 44b where the printing plates are detachable. is placed in

For example, in FIG. 2, of the plate cylinders 41a, 41b, 42a, 42b, 43a, 43b, 44a, and 44b, ink and dampening water are supplied to the hatched portions, and the other blank portions are supplied with ink and dampening water. Ink and dampening solution not supplied. At this time, as shown in FIG. 20, for the fan-out suppression device 72A, the color page surface distribution information 108 is the color page number 3 and the position of the color page number 3. Although not shown, a fan-out preset value for the color paper surface distribution information 108 is set in advance. Here, in the color paper surface distribution information 108, the amount of ink supplied to the web W and the amount of dampening water supplied to the web W are greater in areas where the color paper surface is located. For example, when the color paper surface is at the end of the plate cylinder, the fan-out amount is larger than when the color paper surface is near the center of the plate cylinder. Therefore, the fan-out preset value is increased. Specifically, the amount of movement of the pressing roller 81 by the moving device 82c facing the area where the color paper surface is located is increased.

Note that the print control method of the fifth embodiment is the same as that of the first embodiment, so the description is omitted.

[Action and effect of the present embodiment]
The fan-out suppression control device according to the first aspect includes a plurality of pressing rollers (pressing members) 81 arranged at predetermined intervals in the width direction of the web W, and moving the plurality of pressing rollers 81 to move the web W. A moving device 82 that can be pressed, and a control device 91 that controls the amount of movement of the plurality of pressing rollers 81 by the moving device 82 based on the sheet configuration information for printing on the web W. FIG.

The fan-out suppression control device according to the first aspect controls the amount of movement of the plurality of pressure rollers 81 based on the sheet configuration information on which the control device 91 prints on the web W. FIG. The fan-out amount of the web W differs according to various printing conditions for the web W. Therefore, by controlling the amount of movement of the plurality of pressure rollers 81 based on the sheet configuration information, the adjustment time of the amount of movement of the pressure rollers 81 can be shortened, and the fan-out suppression control can be simplified. In addition, in recent years, various printing forms are required, and fan-out adjustment requires skillful techniques that consider various printing conditions. Even easier to adjust. As a result, waste paper can be reduced, and printing costs can be lowered.

In the fan-out suppression control device according to the second aspect, the control device 91 controls the amount of movement of the plurality of pressure rollers 81 by the moving device 82 based on the paper roll width position information 107 of the web W as the page structure information. As a result, the amount of movement of the pressure roller 81 is adjusted based on the paper roll width position of the web W, which is a factor of fluctuation in the amount of fan-out, and the adjustment time of the amount of movement of the pressure roller 81 can be shortened.

The fan-out suppression control device according to the third aspect controls the amount of movement of the plurality of pressure rollers 81 by the moving device 82 based on the color page structure information 101 for printing on the web W by the control device 91 . As a result, the amount of movement of the pressure roller 81 is adjusted based on the configuration of the color paper surface, which is a factor of variation in the amount of fan-out, and the adjustment time of the amount of movement of the pressure roller 81 can be shortened.

The fan-out suppression control device according to the fourth aspect controls the amount of movement of the plurality of pressure rollers 81 by the moving device 82 based on the color page number information 102 printed on the web W by the control device 91 . As a result, the amount of movement of the pressure roller 81 is adjusted based on the number of color pages, which is a factor of variation in the amount of fan-out, and the adjustment time for the amount of movement of the pressure roller 81 can be shortened.

The fan-out suppression control device according to the fifth aspect controls the amount of movement of the plurality of pressure rollers 81 by the moving device 82 based on dampening water information 105 in which the control device 91 supplies dampening water to the web W. FIG. As a result, the amount of movement of the pressure roller 81 is adjusted based on the amount of dampening water supplied, which is a factor that causes the amount of fan-out to fluctuate.

The fan-out suppression control device according to the sixth aspect controls the amount of movement of the plurality of pressure rollers 81 by the moving device 82 based on the image dose information 106 of the plate printed on the web W by the control device 91 . As a result, the amount of movement of the pressure roller 81 is adjusted based on the image line amount of the printing plate, which is a factor of variation in the amount of fan-out.

In the fan-out suppression control device according to the seventh aspect, the control device 91 controls the amount of movement of the plurality of pressure rollers 81 by the moving device 82 based on the conveying speed information (printing speed information) 104 of the web W. As a result, the amount of movement of the pressure roller 81 is adjusted based on the transport speed of the web W, which is a factor of fluctuation in the fan-out amount, and the adjustment time of the amount of movement of the pressure roller 81 can be shortened.

In the fan-out suppression control device according to the eighth aspect, the control device 91 controls the amount of movement of the plurality of pressure rollers 81 so as to differ between when the conveying speed of the web W is accelerated and when it is decelerated. The amount of movement of the pressing roller 81 can be adjusted to an appropriate value for the amount of fan-out that fluctuates during acceleration and deceleration of the conveying speed.

In the fan-out suppression control device according to the ninth aspect, the control device 91 has an initial preset value PS1 for controlling the amount of movement of the plurality of pressure rollers 81 by the moving device 82, and when the initial preset value PS1 is rewritten, The rewritten adjustment preset value PS2 is stored, and the amount of movement of the plurality of pressure rollers 81 by the moving device 82 is controlled by the adjustment preset value PS2. Accordingly, by maintaining the rewritten adjustment preset value PS2, the movement amounts of the plurality of pressure rollers 81 can be controlled with high accuracy.

A fan-out suppression control device according to a tenth aspect has an initial preset value PS1 for controlling the amount of movement of a plurality of pressure rollers 81 by a control device 91 or a moving device 82, and performs a plurality of pressing operations using the initial preset value PS1. At the time of controlling the movement amount of the roller 81, if the movement amount of the plurality of pressure rollers 81 is adjusted from the outside, the initial preset value PS1 is used from the position of the pressure roller 81 whose movement amount has been adjusted. Control of the amount of movement of the plurality of pressure rollers 81 by the moving device 82 is continued. As a result, even when adjustment processing is performed from the outside, the plurality of pressure rollers 81 are moved by the moving device 82 using the initial preset value PS1 from the adjusted roller position of the pressure roller 81 that has undergone the adjustment processing. Since the control of the amount is continued, the amount of movement of the plurality of pressing rollers 81 can be controlled with high accuracy.

In the fan-out suppression control device according to the eleventh aspect, the control device 91 controls the amount of movement of the plurality of pressure rollers 81 by the moving device 82 based on the paper quality information 103 of the web W. FIG. As a result, the amount of movement of the pressure roller 81 is adjusted based on the paper quality information of the web W, which is a factor of variation in the amount of fan-out, and the adjustment time of the amount of movement of the pressure roller 81 can be shortened.

In the fan-out suppression control device according to the twelfth aspect, the control device 91 controls the amount of movement of the plurality of pressure rollers 81 by the moving device 82 based on the color paper surface distribution information 108 . As a result, the amount of movement of the pressure roller 81 is adjusted based on the color paper surface distribution, which is a factor of variation in the amount of fan-out, and the adjustment time of the amount of movement of the pressure roller 81 can be shortened.

A printing press according to a thirteenth aspect is a printing press in which a plurality of printing units U1 to U6 are arranged at predetermined intervals along the vertical direction, and a web W is conveyed upward in the vertical direction, wherein the plurality of A fan-out suppression control device 90 is arranged between the printing units U1 to U6. As a result, the fan-out suppression control device 90 controls the amount of movement of the plurality of pressure rollers 81 based on the sheet configuration information, thereby shortening the adjustment time of the amount of movement of the pressure rollers 81 and simplifying the fan-out suppression control. can be improved.

In the printing press according to the fourteenth aspect, the printing units U1 to U6 include ink supply devices 51a, 51b, 52a, 52b, 53a, 53b, 54a, 54b and plate cylinders 41a, 41b, 42a, 42b, 43a, 43b. , 44a, 44b and blanket cylinders 31a, 31b, 32a, 32b, 33a, 33b, 34a, 34b. It is set to page width×1 page perimeter. As a result, it is possible to appropriately suppress fan-out and improve print quality in a 4×1 rotary printing press.

A printing control method according to a fifteenth aspect includes a step of slowly running a printing unit U1 (newspaper offset rotary press 10), and a fan-out preset value set based on paper surface configuration information for printing on a web W. , a step of controlling the fan-out suppression devices 71, 72, and 73 based on the fan-out preset value, a step of starting printing on the web W, a step of finely adjusting the fan-out preset value, and and accelerating to a set predetermined print speed. As a result, the adjustment time of the movement amount of the pressing roller 81 is shortened, and the fan-out suppression control can be simplified.

In the above-described embodiment, as the fan-out suppression devices 71, 72, and 73, a plurality of pressure rollers 81 press the web W from one surface side of the web W, but the configuration is limited to this configuration. isn't it. For example, a configuration in which a plurality of pressing rollers 81 press the web W from one surface side and the other surface side of the web W may be employed. Also, the configuration and number of pressing members and the configuration of the moving device are not limited to the configuration of the above-described embodiment.

In the above-described embodiment, the newspaper offset rotary printing press 10 has a printing press management device that manages various types of printing information, and the control device 91 performs printing on the web W from this printing press management device. Page layout information is entered.

R paper feeding device R1 to R7 paper feeding unit I infeed device I1 to I7 infeed unit U printing device U1 to U6, U11 to U62 printing unit D web pass device D1, D2 web pass unit F folder F1, F2 folding unit 10 Newspaper offset rotary press (printing machine)
21, 22, 23, 24 Stack 31a, 31b, 32a, 32b, 33a, 33b, 34a, 34b Blanket cylinder 41a, 41b, 42a, 42b, 43a, 43b, 44a, 44b Plate cylinder 51a, 51b, 52a, 52b, 53a, 53b, 54a, 54b ink supply device 61a, 61b, 62a, 62b, 63a, 63b, 64a, 64b dampening device 71, 72, 72A, 73 fan-out suppression device 81 pressing roller (pressing member)
82 moving device 83 supporting plate 84 bracket 85 supporting shaft 86 driving device 87 screw shaft 88 moving member 90, 90A, 90B, 90C fan-out suppression control device 91 control device 101 color page configuration information 102 color page number information 103 paper quality information 104 printing Speed information (web transport speed information)
105 Dampening water information 106 Image amount information 107 Cigarette roll width position information 108 Color page distribution information

Claims (15)

a plurality of pressing members arranged at predetermined intervals in the width direction of the web;
a moving device capable of moving the plurality of pressing members to press the web;
a control device for controlling the amount of movement of the plurality of pressing members by the moving device based on the paper configuration information for printing on the web;
with
The control device has an initial preset value for controlling the amount of movement of the plurality of pressing members by the moving device, stores the rewritten adjustment preset value when the initial preset value is rewritten, and stores the adjustment preset value. The amount of movement of the plurality of pressing members by the moving device is controlled by the value,
The adjustment preset value differs from the initial preset value in the positions of the plurality of pressing members, and the movement amount of the plurality of pressing members by the moving device does not change.
Fan-out suppression controller. a plurality of pressing members arranged at predetermined intervals in the width direction of the web;
a moving device capable of moving the plurality of pressing members to press the web;
a control device for controlling the amount of movement of the plurality of pressing members by the moving device based on the paper configuration information for printing on the web;
with
The control device has an initial preset value for controlling the amount of movement of the plurality of pressing members by the moving device, and when controlling the amount of movement of the plurality of pressing members using the initial preset value, the plurality of After the adjustment processing of the movement amount of the pressing member is performed, thereafter, the movement amount of the plurality of pressing members by the moving device used with the initial preset value from the position of the pressing member where the adjustment processing of the movement amount is performed continue to control the
Fanout suppression controller. The control device controls the amount of movement of the plurality of pressing members by the moving device based on paper roll width position information of the web as the page configuration information.
The fan-out suppression control device according to claim 1 or 2 . The control device controls the amount of movement of the plurality of pressing members by the moving device based on color page configuration information for printing on the web.
The fan-out suppression control device according to any one of claims 1 to 3 . The control device controls the amount of movement of the plurality of pressing members by the moving device based on color page number information to be printed on the web.
The fan-out suppression control device according to any one of claims 1 to 4 . The control device controls the amount of movement of the plurality of pressing members by the moving device based on dampening water information for supplying dampening water to the web.
The fan-out suppression control device according to any one of claims 1 to 5 . The control device controls the amount of movement of the plurality of pressing members by the moving device based on the image amount information of the printing plate for printing on the web.
The fan-out suppression control device according to any one of claims 1 to 6 . The control device controls the amount of movement of the plurality of pressing members by the moving device based on the conveying speed information of the web.
The fan-out suppression control device according to any one of claims 1 to 7 . The control device controls the amount of movement of the plurality of pressing members so as to be different between when the conveying speed of the web is accelerated and when it is decelerated.
The fan-out suppression control device according to claim 8 . The control device controls the amount of movement of the plurality of pressing members by the moving device based on the paper quality information of the web.
The fan-out suppression control device according to any one of claims 1 to 9 . The control device controls the amount of movement of the plurality of pressing members by the moving device based on the color paper distribution information.
The fan-out suppression control device according to any one of claims 1 to 10 . In a printing press in which a plurality of printing units are arranged at predetermined intervals along the vertical direction and the web is conveyed upward in the vertical direction,
A printing machine in which the fan-out suppression control device according to any one of claims 1 to 11 is arranged between the plurality of printing units. The printing unit has an ink supply device, a plate cylinder, and a blanket cylinder,
The size of the printing cylinder is set to 4 pages wide by 1 page perimeter of the newspaper.
13. Press according to claim 12 . a step of slowly running the printing press;
inputting a fan-out preset value set based on paper configuration information for printing on the web;
controlling a fanout suppression device based on the fanout preset value;
initiating printing on the web;
fine-tuning the fan-out preset value;
Accelerating to a predetermined print speed set in advance;
has
It has an initial preset value for controlling the amount of movement of the plurality of pressing members by the fan-out suppression device, stores the rewritten adjustment preset value when the initial preset value is rewritten, and stores the rewritten adjustment preset value, and uses the adjustment preset value to control the plurality of pressing members. controls the amount of movement of the pressing member of
The adjusted preset value differs from the initial preset value in the positions of the plurality of pressing members, and the amount of movement of the plurality of pressing members by the fan-out suppressing device does not change.
Print control method. a step of slowly running the printing press;
inputting a fan-out preset value set based on paper configuration information for printing on the web;
controlling a fanout suppression device based on the fanout preset value;
initiating printing on the web;
fine-tuning the fan-out preset value;
Accelerating to a predetermined print speed set in advance;
has
an initial preset value for controlling the amount of movement of the plurality of pressing members by the fan-out suppressing device, and when the amount of movement of the plurality of pressing members is controlled using the initial preset value, the pressing members are moved from the outside; After the adjustment processing of the movement amount is performed, thereafter, the movement amount of the plurality of pressing members used with the initial preset value is continued to be controlled from the position of the pressing member where the adjustment processing of the movement amount is performed.
Print control method.

Images