JP2021062560A - Fanout suppression control device and printer and print control method - Google Patents

Abstract

To simplify fanout suppression control in a fanout suppression control device and a printer.SOLUTION: A fanout suppression control device has a plurality of pressing members disposed at predetermined intervals in the width direction of a web, a movement device that can move the plurality of pressing members to press the web, and a control device that controls the amount of movement of the plurality of pressing members by the movement device on the basis of information on the structure of a page space printed onto the web.SELECTED DRAWING: Figure 1

Description

The present disclosure relates to a fan-out suppression control device for suppressing a fan-out of a web, a printing machine provided with a fan-out suppression control device, and a printing control method.

The offset rotary printing press for newspapers includes a paper feeding device, a printing device, a web path device, and a folding machine. The printing device is a tower type in which a plurality of printing units are arranged along the vertical direction so that four-color printing can be performed. In the tower-type printing apparatus, printing is continuously performed by each printing unit while the web is conveyed from the bottom to the top. At this time, the web absorbs dampening water and is extended in the width direction by applying printing pressure, so that the paper width differs between the printing units. This difference in paper width increases toward the top, causing misregistration, so-called fan-out.

In recent years, printing on various printing media has increased, the page layout of color paper has become complicated in newspaper printing, and the use of lightweight paper with a reduced amount of pulp in consideration of the environmental load has also increased. There is. Furthermore, regarding rotary printing machines, the conventional 4x2 machines (the diameters of the plate cylinder and the blanket cylinder are the same size) to 4x1 machines (the diameter of the plate cylinder is 1/2 the diameter of the blank cylinder) are used. With the shift to (halving the number of printing plates), there is no split plate cylinder (shell cylinder) that adjusted the color register on the 4x2 machine, so a fan is used to adjust the color register on the 4x1 machine. The out adjustment device is in an important position. Against this background, adjusting fanout requires skillful skills that take into account various printing conditions.

As a device that suppresses the occurrence of fan-out, for example, there is one described in Patent Document 1 below. The continuous paper width adjusting device described in Patent Document 1 adjusts the width of continuous paper by bringing a plurality of pressing members into contact with the continuous paper and forming waviness parallel to the transport direction.

Japanese Patent No. 5509711

The above-mentioned fan-out occurs when the web absorbs dampening water and applies printing pressure to extend in the width direction. At this time, the fan-out is caused by the dampening water for the web, but the fan-out amount differs depending on other printing conditions. Conventionally, a skilled worker has adjusted the pressing amount by a plurality of pressing members according to the fan-out amount. On the other hand, if the worker is not a skilled worker, the adjustment time will be long. In recent years, various printing forms have been required for offset rotary printing presses for newspapers, and simplification of fan-out correction work is required.

The present disclosure is to solve the above-mentioned problems, and an object of the present invention is to provide a fan-out suppression control device, a printing machine, and a printing control method for simplifying fan-out suppression control.

In the fan-out suppression control device of the present disclosure for achieving the above object, a plurality of pressing members arranged at predetermined intervals in the width direction of the web and the plurality of pressing members are moved to press the web. It includes a possible moving device and a control device that controls the amount of movement of the plurality of pressing members by the moving device based on the paper surface configuration information for printing on the web.

Further, the printing machine of the present disclosure is a printing machine 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 between them.

Further, the print control method of the present disclosure includes a step of slow-moving the printing machine, a step of inputting a fan-out preset value set based on the paper surface configuration information for printing on the web, and the fan-out preset value. It has a step of controlling the fan-out suppression device based on the above, a step of starting printing on the web, a step of finely adjusting the fan-out preset value, and a step of accelerating to a predetermined printing speed set in advance. ..

According to the fan-out suppression control device and the printing machine and the printing control method of the present disclosure, the fan-out suppression control can be simplified.

FIG. 1 is a schematic view showing the fan-out suppression control device of the first embodiment. FIG. 2 is a schematic view for explaining the paper structure of the web. FIG. 3 is a table showing preset values for the color plane configuration. FIG. 4 is a table showing preset values for the number of color pages. FIG. 5 is a graph showing the roller position with respect to the number of color pages. FIG. 6 is a table showing preset values for each paper type. FIG. 7 is a graph showing control of the roller position with respect to the printing speed. FIG. 8-1 is a graph showing the initial preset control of the roller position with respect to the printing speed. FIG. 8-2 is a graph showing adjustment control of the roller position with respect to the printing speed. FIG. 8-3 is a graph showing the adjustment preset control of the roller position with respect to the printing speed. FIG. 8-4 is a graph showing another adjustment control of the roller position with respect to the printing speed. FIG. 9 is a flowchart showing a print control method. FIG. 10 is a schematic configuration diagram showing an offset rotary printing press for newspapers. 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 the fan-out suppressing device. FIG. 13 is a schematic view showing the fan-out suppression control device of the second embodiment. FIG. 14 is a table showing preset values for the number of wetting nozzles. FIG. 15 is a schematic view 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 view showing the fan-out suppression control device of the fourth embodiment. FIG. 18 is a schematic view showing the relationship between the cigarette width position and the fan-out amount in a plurality of cigarette widths. FIG. 19 is a table showing preset values for the cigarette width. FIG. 20 is a schematic view 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 embodiment also includes a combination of the respective embodiments. In addition, the components in the embodiment include those that can be easily assumed by those skilled in the art, those that are substantially the same, that is, those in a so-called equal range.

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

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

As shown in FIG. 10, the newspaper offset rotary printing press 10 includes a paper feeding device R, an in-feed device I, a printing device U, a web path device D, and a folding machine F. The paper feed device R has a plurality of (seven units in this embodiment) paper feed units R1 to R7. The in-feed device I has a plurality of (seven in this embodiment) in-feed units I1 to I7. The printing apparatus U has a plurality of (six in this embodiment) printing units U1 to U6. The web pass device D has a plurality of (two in this embodiment) web pass units D1 and D2. The folding machine F has a plurality of folding units F1 and F2 (two in this embodiment).

Although the printing units U1 to U6 have been described as six units, each of the printing units U1 to U6 can print four colors, and the printing units U11, U12, which can be divided into upper and lower parts and can print 12 units in two colors, It can be used as U21 ... U61, U62. Further, although the two folding units F1 and F2 are described side by side, they are actually an operation side folding unit F1 and a driving side folding unit F2 arranged side by side in a direction orthogonal to the paper surface. Further, although the printing device U is described from two parts, it is only described by dividing it into two in terms of function, and it is actually one device.

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

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

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

Each web W printed by the printing units U1 to U3 is vertically cut by the web path unit D1 by the slitter, the transport path is changed by the turn bar, and the transport position is adjusted by the compensator, and then in a predetermined order. Overlaid. Further, each web W printed by the printing units U4 to U6 is vertically cut by the web path unit D2 by the slitter, the transport path is changed by the turn bar, and the transport position is adjusted by the compensator, and then a predetermined value is set. They are overlaid in order.

In the folding machine F, the two folding units F1 and F2 are arranged on the operation side and the drive side. When a plurality of webs W1 are stacked and introduced from the web path unit D1, the folding unit F1 vertically folds the web W1, cuts it horizontally to a predetermined length, and folds it horizontally to form a newspaper. To eject as. Further, when a plurality of webs W2 are stacked and introduced from the web path unit D2, the folding unit F2 vertically folds the web W2, horizontally cuts the web W2 to a predetermined length, and horizontally folds the web W2 to form a tatami mat. , Discharge as a newspaper.

[Printing 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 will be 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 that four-color printing is possible. In the printing unit U1, four stacks 21, 22, 23, 24 for each of black, indigo, red, and yellow are arranged along the transport direction of the web W (direction from bottom to top in FIG. 11). It is composed. The stacks 21, 22, 23, and 24 have a roller arrangement that is symmetrical to each other.

The stacks 21, 22, 23, 24 are opposed to each other in the left-right direction, and the blanket cylinders 31a, 31b, 32a, 32b, 33a, 33b, 34a, and 34b can be brought into contact with each other across the transport path of the web W. The blanket cylinders 31a, 31b, 32a, 32b, 33a, 33b, 34a, 34b are in contact with the plate cylinders 41a, 41b, 42a, 42b, 43a, 43b, 44a, 44b. In the stacks 21, 22, 23, 24, the ink supply devices 51a, 51b, 52a, 52b, 53a, 53b, 54a, 54b are provided with respect to the plate cylinders 41a, 41b, 42a, 42b, 43a, 43b, 44a, 44b. Provided. Further, wetting devices 61a, 61b, 62a, 62b, 63a, 63b, 64a, 64b are provided for the plate cylinders 41a, 41b, 42a, 42b, 43a, 43b, 44a, 44b.

The printing unit U1 is provided with fan-out suppression devices 71, 72, 73. The fanout suppression device 71 is arranged between the stacks 21 and 22. The fanout suppression device 72 is arranged between the stacks 22 and 23. The fanout suppression device 73 is arranged between the stacks 23 and 24. The fan-out suppression devices 71, 72, and 73 have almost 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. Therefore, the web W extends in the width direction, and misregistration, so-called fan-out, occurs. The fan-out suppression devices 71, 72, and 73 suppress this fan-out.

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

The plurality of pressing rollers 81 are arranged on one side of the traveling web W. The plurality of pressing rollers 81 are arranged at predetermined intervals (preferably even intervals) in the width direction of the web W. The moving device 82 can move a plurality of pressing rollers 81 and press the web W.

The support plate 83 is arranged on one side of the web W. The support plate 83 is arranged along the width direction of the web W and horizontally. The support plate 83 is arranged so as to be separated from one surface of the web W. A plurality of brackets 84 (8 in this embodiment) 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 (8 in this embodiment) pressing rollers 81 are rotatably supported by each bracket 84 by a support shaft 85. The support shaft 85 is along the width direction of the web W.

The moving devices 82 are arranged on both sides of the web W in the width direction. The moving device 82 includes a driving device 86, a screw shaft 87, and a moving member 88. The drive device 86 is fixed to the printing machine frame 89. The screw shaft 87 is arranged in a direction orthogonal to the web W. The screw shaft 87 can be rotated in the forward rotation direction and the reverse rotation direction by the drive device 86. A moving member 88 is screwed into the screw shaft 87. The end portion of the support plate 83 is rotatably connected to the moving member 88.

Therefore, when the drive device 86 is driven and the screw shaft 87 is rotated in the forward rotation direction, the moving member 88 moves forward (moves upward to the right in FIG. 12). Then, the support plate 83 moves forward, and the plurality of pressing rollers 81 move in the direction of approaching and pressing the web W. On the other hand, when the drive device 86 is driven and the screw shaft 87 is rotated in the reverse rotation direction, the moving member 88 retracts (moves to the lower left in FIG. 12). Then, the support plate 83 retracts, and the plurality of pressing rollers 81 move away from the web W in the direction of releasing the pressing.

Here, the plurality of pressing rollers 81 are moved in a direction approaching the web W, and the traveling web W is pressed from one side by the plurality of pressing rollers 81. Then, the web W has a wavy shape because the portion pressed by each pressing roller 81 projects toward the other surface side. Therefore, the web W is corrected by the extension in the width direction due to printing being formed into a wavy shape by each pressing roller 81, and is corrected to the length before printing, that is, the fan-out is corrected. Then, by adjusting the amount of movement of each pressing roller 81 by the moving device 82, the amount of pressing of the web W by each pressing roller 81 can be adjusted. In this case, by making the amount of movement of the support plate 83 by the moving devices 82 on both sides different, the amount of pressing of the web W by each pressing roller 81 can be made different in the width direction of the web W.

[Fan-out suppression control device]
FIG. 1 is a schematic view showing a fan-out suppression control device according to the first embodiment, FIG. 2 is a schematic view for explaining a paper surface configuration of a web, and FIG. 3 is a table and a diagram showing preset values for a 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 includes the above-mentioned fan-out suppression device 72 and the control device 91. The control device 91 controls the movement amount of the plurality of pressing rollers 81 by the moving device 82 of the fan-out suppressing device 72 based on the paper surface configuration information printed on the web W.

Here, the paper surface composition information is the color paper surface composition information 101 for printing on the web W and the color page number information 102 for printing on the web W.

As shown in FIG. 2, in the printing unit U1, eight plate cylinders 41a, 41b, 42a, 42b, 43a, 43b, 44a, 44b are arranged symmetrically along the conveying direction of the web W. The newspaper offset rotary printing press 10 (see FIG. 10) of the first embodiment is a 4 × 1 rotary printing press. Therefore, four printing plates (not shown) can be attached to and detached from each plate cylinder 41a, 41b, 42a, 42b, 43a, 43b, 44a, 44b in the axial direction. That is, the printing unit U1 can form a page structure of 8 pages with respect to the front and back sides of the web W. The page composition of page 8 is a color surface or a monochrome surface.

The printing unit U1 can supply black, indigo, red, 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 the plate cylinders 43a and 44b supply yellow ink, respectively. In addition, when each ink is supplied to the web W, dampening water is also supplied. Therefore, when color printing is performed on the web W, all the plate cylinders 41a, 41b, 42a, 42b, 43a, 43b, 44a, 44b supply ink and dampening water to the web W. On the other hand, when monochrome surface printing is performed on the web W, only the plate cylinders 41a and 41b supply ink and dampening water to the web W. Further, since each plate cylinder 41a, 41b, 42a, 42b, 43a, 43b, 44a, 44b can mount four printing plates in the axial direction, color printing and monochrome printing are performed on 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 a Δ mark. As indicated by the Δ mark, at the exit point of the printing unit U1, four colors are printed on the front surface of the web, and one color of black ink is printed on the back surface. Here, the description of the blanket cylinders 31a, 31b, 32a, 32b, 33a, 33b, 34a, 34b will be omitted.

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

Therefore, for example, in FIG. 2, ink and dampening water are supplied to the shaded portions of the plate cylinders 41a, 41b, 42a, 42b, 43a, 43b, 44a, 44b, and the other white portions. Is not supplied with ink and dampening water. At this time, for the printing unit U1, the color paper surface composition information 101 is 4 colors / 1 color, and the color page number information 102 is the color page number 3. That is, finally, the printing unit U1 prints on the front and back surfaces of the web W, superimposes four colors of ink on the front surface of the web W to form a color surface (four colors), and superimposes the ink on the back surface. Since the entire surface is black (1 color) without performing the above, the color paper surface composition information 101 is 4 colors / 1 color. Further, since the printing unit U1 forms a paper surface composition of 3 pages in color and 5 pages in monochrome with respect to the front and back surfaces of the web W, the color page number information 102 becomes the color page number 3.

Then, as shown in FIG. 3, a fan-out preset value (PS value) for the color paper surface configuration information 101 is preset. The fan-out preset value is the amount of movement of each pressing roller 81 by the moving device 82. Here, the color paper surface composition information 101 has a larger ink supply amount and dampening water supply amount to the web W than 1C to 4C. Therefore, the relationship between the fanout preset values 1A, 2A, 3A, and 4A is 1A> 2A = 3A> 4A.

Further, as shown in FIG. 4, a fanout preset value (PS value) for the color page number information 102 is preset. The fanout preset values in FIG. 4 are for the print unit U1. Here, in the color page number information 102, the number of pages to be printed increases as the number of color pages increases, so that the ink supply amount and the dampening water supply amount to the web W are large. Therefore, the relationship between the fanout preset values 1B, 2B, 3B, 4B ... 7B, 8B is 1B <2B <3B <4B ... 7B <8B. That is, as shown in FIG. 5, the roller movement amount (fanout preset value) with respect to the color page number information 102 gradually increases as the number of color pages increases. In addition, you may increase it linearly.

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

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

FIG. 6 is a table showing preset values for each paper type, FIG. 7 is a graph showing control of the roller position with respect to the printing speed, and FIG. 8-1 is a graph showing the initial preset control of the roller position with respect to the printing speed. 2 is a graph showing the adjustment control of the roller position with respect to the printing speed, FIG. 8-3 is a graph showing the 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 fanout preset value (PS value) for the paper quality information 103 of the Web W is preset. The paper quality information 103 of the Web W corresponds to the paper types 1 to 4, and the paper types 1 to 3 are stencil paper and the paper type 4 is white paper. The changing papers are XL paper (ultra-lightweight newspaper), SL paper (ultra-lightweight newspaper), and L-paper (lightweight newspaper). Here, since the stencil paper has a larger basis weight as the L paper than the XL paper, even if the same amount of water is supplied, the L paper has a smaller ratio of the water content to the entire paper than the SL paper and the XL paper. Become. Therefore, the relationship between the fanout preset values 1C, 2C, and 3C is 1C> 2C> 3C. In addition, white paper is less likely to absorb moisture than stencil paper. Therefore, the relationship between the fan-out preset values 1C, 2C, 3C, and 4C including the paper change 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 composition information or the color page number information. This reference value is, for example, a 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 surface composition information or the color page number information, the fan-out preset value is used without being corrected, and the web W is L. If it is not paper, the fanout preset value is increased or decreased according to the paper type to correct it.

As shown in FIG. 7, when the movement amount (position) of each pressing 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 print. carry out. When the printing speed increases from the time t0, the amount of movement of each pressing roller 81 by the moving device 82 is adjusted. That is, as the transport speed of the web W increases, the arrival time between the stacks 21, 22, 23, and 24 becomes shorter, and the fan-out amount 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 gradually reduced. Then, when the transport speed of the web W, that is, a predetermined printing speed is reached at time t1, the amount of movement of each pressing roller 81 by the moving device 82 is made constant. On the other hand, as the printing is approaching the end and the transport speed of the web W decreases from the time t2, the amount of movement of each pressing roller 81 by the moving device 82 is gradually increased. After that, at time t3, printing is completed.

In this case, when the printing speed is increased from the paper inspection speed V1, the amount of movement of the pressing roller 81 is reduced. 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 speed is reduced from the predetermined printing speed V2 to the paper reading speed V1 near the end of printing, the amount of movement of the pressing roller 81 is increased. At this time, the amount of movement of the pressing roller 81 when the printing speed increases and the amount of movement of the pressing roller 81 when the printing speed decreases are made different. That is, since the fan-out amount of the web W differs when the printing speed increases and decreases, the optimum roller movement amount is set according to the fluctuation of the fan-out amount.

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

Further, as shown in FIG. 1, the control device 91 has an initial preset value PS1 that controls the amount of movement of the plurality of pressing rollers 81 by the moving device 82, and the initial preset value PS1 is adjusted by a fine adjustment operation of the operator. When the preset value PS2 is rewritten, the adjustment preset value PS2 is stored, and the movement amount of the plurality of pressing 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 adjustment preset value PS2 is the roller position at the paper inspection speed V1, and there is no change in the roller movement amount at each printing speed.

As shown in FIG. 8-1, the initial preset value PS1 is set. As described with reference to FIG. 7, the initial preset value PS1 is set individually for the amount of movement of the pressing roller 81 when the printing speed is increased and when the printing speed is decreased. As shown in FIG. 8-2, when the movement amount of the pressing roller 81 is changed with respect to the increase in the printing speed based on the initial preset value PS1, the operator sets the paper inspection speed V1 with respect to the initial preset value PS1. The roller position may be fine-tuned. In this case, instead of the initial preset value PS1, the adjustment preset value PS2 in which the roller position at the paper inspection speed V1 is changed is set. The control device 91 stores the adjustment preset value PS2 together with the initial preset value PS1. Then, the control device 91 subsequently changes the movement amount of the pressing roller 81 with respect to the increase in the printing speed based on the adjustment preset value PS2.

When the adjustment preset value PS2 is set, it is preferable that the control device 91 saves 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, the preset values PS1, PS2, and PS3 are stored as fan-out preset values in which different movement amounts of the pressing rollers 81 with respect to changes in the printing speed are set. The preset values PS1, PS2, and PS3 are examples, and are not limited to this pattern. The optimum pattern may be set by an experiment or the like according to the printing conditions.

Further, as shown in FIG. 8-4, when the moving amount of the pressing roller 81 is changed while the printing speed is increasing based on the initial preset value PS1, the operator moves the roller with respect to the initial preset value PS1. May be fine-tuned. For example, as described above, at the initial preset value PS1, the printing speed Vu1 sets the pressing amount Pu1 = -3.0, the printing speed V2 sets the pressing amount Pu2 = -3.5, and the printing speed V3 sets the pressing amount Pu3 =-. It is set to 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 = −6.0 at the printing speed Vu1, and the roller position of the pressing roller 81 moves due to the addition of the pressing amount by the operator (movement amount adjustment processing). After that, at the printing speed Vu2, the pressing amount Pu2 = -3.5, and there is no change in the subsequent pressing amount. 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 by the output of the detection sensor and calculate the push amount Pu = −3.0 manually added by the operator. As a result, the adjustment preset value PS4 in which the roller position at the paper inspection speed V1 is changed by the pressing amount Pu = −3.0 is set. The control device 91 stores the adjustment preset value PS4 together with the initial preset value PS1.

[Print control method]
FIG. 9 is a flowchart showing a print control method.

In the printing control method of the first embodiment, a step of slow-moving the printing unit U1 (offset rotary printing press for newspapers 10) and a fan-out preset value set based on the paper surface configuration information for printing on the web W are set. The process of inputting, the process of controlling the fan-out suppression devices 71, 72, 73 based on the fan-out preset value, the process of starting printing on the web W, and the process of fine-tuning the fan-out preset value are set in advance. It has a step of accelerating to a predetermined printing speed.

As shown in FIGS. 1 and 9, when the paper threading work, the paper pasting work, the tension control, etc. of the web W are completed in the newspaper offset rotary printing press 10 (see FIG. 10), the movement is slowed down in step S11. The operation is started. The slow-moving operation is a state in which the printing operation is not performed, and is a state in which the newspaper offset rotary printing press 10 is being operated at the lowest speed. Then, in step S12, the fan-out preset value (initial preset value PS1) set based on the color paper surface composition 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 paper surface composition information 101, the color page number information 102, and the paper quality information 103. Further, in step S13, the preset value of the Web W registered in advance is input. Then, in step S14, printing is started.

In step S15, the operator sees the printed matter and fine-tunes the fan-out preset value according to the actual fan-out amount. In step S16, the finely adjusted fanout preset value (adjustment preset value PS2) is stored. If fine adjustment is not required here, the initial preset value (PS1) remains. Then, in step S17, the printing speed is increased from the paper inspection speed V1 and the acceleration operation is started. At this time, in step S18, the movement amount of the pressing roller 81 is controlled according to the increase in the printing speed based on the fan-out preset value (PS1 or PS2), and the moving amount of the pressing roller 81 is reduced. At this time, in step S19, the operator manually adjusts the amount of movement of the pressing roller 81. The amount of movement of the pressing roller 81 added or decreased is detected by the detection sensor and stored as an adjustment preset value PS4 in which the amount of movement of the added or decreased pressing roller 81 is taken into consideration. Then, in step S20, when the printing speed reaches a predetermined printing speed V2, the amount of movement of the pressing roller 81 is made constant. After that, in step S21, when the printing is nearing the end, the printing speed is reduced and the deceleration operation is started. At this time, in step S22, the movement amount of the pressing roller 81 is controlled according to the decrease in the printing speed based on the fan-out preset value (PS1 or PS2), and the moving amount of the pressing roller 81 is increased. Then, in step S23, printing is completed.

[Second Embodiment]
FIG. 13 is a schematic view showing the fan-out suppression control device of the second embodiment, and FIG. 14 is a table showing preset values with respect to the number of wetting nozzles. The members having the same functions as those of the first embodiment described above are designated by the same reference numerals, and detailed description thereof will be omitted.

As shown in FIG. 13, the fan-out suppression control device 90A includes a fan-out suppression device 72 and a control device 91. The control device 91 controls the amount of movement of the plurality of pressing rollers 81 by the moving device 82 in the fan-out suppressing device 72 based on the paper surface configuration information printed on the web W. Here, the paper surface composition information is the dampening water information 105 that supplies the dampening water to the web W. Further, the control device 91 controls the amount of movement of the plurality of pressing 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.

As shown in FIG. 11, in the printing unit U1, eight plate cylinders 41a, 41b, 42a, 42b, 43a, 43b, 44a, 44b are arranged symmetrically along the conveying direction of the web W. For each plate cylinder 41a, 41b, 42a, 42b, 43a, 43b, 44a, 44b, the ink supply devices 51a, 51b, 52a, 52b, 53a, 53b, 54a, 54b and the wetting devices 61a, 61b, 62a , 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.

Therefore, for example, in FIG. 2, ink and dampening water are supplied to the shaded portions of the plate cylinders 41a, 41b, 42a, 42b, 43a, 43b, 44a, 44b, and the other white portions. Is not supplied with ink and dampening water. At this time, for the fan-out suppressing device 72, the dampening water information 105 is the number of dampening water pages 11. That is, the printing unit U1 can form a paper surface configuration of 16 sides with respect to the front and back surfaces of the web W. Of the 16 pages, there are a total of 6 monochrome pages, one on the plate cylinder 41a and four sides on the plate cylinder 41b, and three color pages on the plate cylinder 41a and three sides on the plate cylinder 42a. , The dampening water information 105 has 11 dampening water pages.

At this time, for the fan-out suppressing device 71, the dampening water information 105 has 8 dampening water pages. That is, the printing unit U1 can form an eight-sided paper surface configuration with respect to the front and back surfaces of the web W. Of the eight pages, the dampening water information 105 is dampened because the monochrome pages are one side of the plate cylinder 41a and the four sides of the plate cylinder 41b, for a total of five sides, and the color pages are three sides of the plate cylinder 41a. The number of water pages is eight. Further, for the fan-out suppressing device 73, the dampening water information 105 is the number of dampening water pages 14. That is, the printing unit U1 can form a paper surface configuration of 24 sides with respect to the front and back surfaces of the web W. Of the 24 pages, the dampening water information 105 has a total of 5 monochrome pages, one on the plate cylinder 41a and four sides on the plate cylinder 41b, and three color pages on each of the plate cylinders 41a, 42a, and 43a. Since there is a surface, 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 preset. The fanout preset value in FIG. 14 is for the fanout suppression device 72. Here, in the dampening water information 105, the larger the number of pages of the dampening water, the larger the amount of dampening water supplied to the web W. Therefore, the relationship between the fanout preset values 8D, 9D, 10D ... 15D, 16D is 8D <9D <10D ... 15D <16D.

Further, as shown in FIG. 11, in the wetting devices 61a, 61b, 62a, 62b, 63a, 63b, 64a, 64b, the supply amount of dampening water differs depending on the width of the web W. As shown in FIG. 2, four printing plates (not shown) can be attached to and detached from each plate cylinder 41a, 41b, 42a, 42b, 43a, 43b, 44a, 44b in the axial direction. Here, printing may be performed by attaching only three printing plates to each plate cylinder 41a, 41b, 42a, 42b, 43a, 43b, 44a, 44b. In this case, the dampening water may not be supplied to the regions (axial end regions) of the plate cylinders 41a, 41b, 42a, 42b, 43a, 43b, 44a, and 44b on which the printing plate is not mounted. It reduces the supply of dampening water. Therefore, even in such a case, the fan-out preset value is set based on the dampening water information 105 (number of pages of dampening water), and the amount of movement of the plurality of pressing rollers 81 by the moving device 82 is controlled.

Since the printing control method of the second embodiment is the same as that of the first embodiment, the description thereof will be omitted.

[Third Embodiment]
FIG. 15 is a schematic view showing the fan-out suppression control device of the third embodiment, and FIG. 16 is a table showing preset values with respect to the image dose. , The same reference numerals are given and detailed description thereof will be omitted.

As shown in FIG. 15, the fan-out suppression control device 90B includes a fan-out suppression device 72 and a control device 91. The control device 91 controls the amount of movement of the plurality of pressing rollers 81 by the moving device 82 in the fan-out suppressing device 72 based on the paper surface configuration information printed on the web W. Here, the paper surface composition information is the image dose information 106 of the printing plate to be printed on the Web W. Further, the control device 91 controls the amount of movement of the plurality of pressing 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.

For the image dose information 106, pattern data (standard data / image information) is input from a server (not shown), and the image rate (image dose) for each ink key is calculated based on the 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 preset. The fanout preset value in FIG. 16 is for the fanout suppression device 72. Here, in the image dose information 106, the larger the image dose, the larger the ink supply amount and the dampening water supply amount to the web W. Therefore, the relationship between the fanout preset values 1E, 2E, 3E ... 32E is 1E <2E <3E ... 21E.

Since the printing control method of the third embodiment is the same as that of the first embodiment, the description thereof will be omitted.

[Fourth Embodiment]
FIG. 17 is a schematic view showing the fanout suppression control device of the fourth embodiment, FIG. 18 is a schematic view showing the relationship between the cigarette width position and the fanout amount in a plurality of cigarette widths, and FIG. 19 is a schematic view showing the relationship between the cigarette width and the cigarette width. It is a table showing preset values.

As shown in FIG. 17, the fan-out suppression control device 90C includes a fan-out suppression device 72 and a control device 91. The control device 91 controls the amount of movement of the plurality of pressing rollers 81 by the moving device 82 in the fan-out suppressing device 72 based on the paper surface configuration information printed on the web W. Here, the paper surface composition information is the cigarette width position information 107 for printing on the Web W. Further, the control device 91 controls the amount of movement of the plurality of pressing 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.

The cigarette width position information 107 is the width information (cigarette width information) of the web W for printing and the transport position information (cigarette position information) of the web W. As shown in FIG. 18, for example, a roll paper in which a web W having the same width is wound around a 4-page width plate cylinder is called a volume A, and a 3-page width web is referred to as a 4-page width plate cylinder. The winding paper on which the W is wound is referred to as a C volume, and the winding paper on which the web W having a width of 2 pages is wound on the plate cylinder having a width of 4 pages is referred to as a volume D. Here, the A volume, the C volume, and the D volume are the cigarette width information. Further, the roll-up paper may be transported with a deviation from one side (operation side) or the other side (drive side) in the width direction with respect to the plate cylinder having a width of 4 pages. Here, the transport position of the web W is the paper roll position information. As shown in FIG. 18, the web W is prone to fan-out f at the end in the width direction.

That is, the case where a roll paper having the same width is used for a 4-page width plate cylinder is referred to as a volume A. Further, a case where a roll paper having a width of 3 pages is used for a plate cylinder having a width of 4 pages and is displaced to the operation side is referred to as a C winding operation. When a 3-page-wide roll-up paper is used for a 4-page-wide plate cylinder and the paper is displaced to the drive side, it is referred to as a C-winding drive. Further, a case where a two-page width roll-up paper is used for a four-page width plate cylinder and is displaced to the operation side is referred to as a D-winding operation. When a two-page width roll-up paper is used for a four-page width plate cylinder and is located in the center, it is referred to as "D-rolling". A case where a two-page width winding paper is used for a four-page width plate cylinder and the paper is displaced to the drive side is referred to as a D-winding drive.

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

Since the printing control method of the fourth embodiment is the same as that of the first embodiment, the description thereof will be omitted.

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

As shown in FIG. 20, the fan-out suppression control device 90D includes a fan-out suppression device 72A and a control device 91. The control device 91 controls the amount of movement of the plurality of pressing rollers 81 by the moving device 82 in the fan-out suppressing device 72A based on the paper surface configuration information printed on the web W. Here, the paper surface composition information is color paper surface distribution information 108 for printing on the Web W. Further, the control device 91 controls the movement amount of the plurality of pressing rollers 81 by the moving devices 82a, 82b, 82c, 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.

As shown in FIG. 2, four printing plates (not shown) can be attached to and detached from each plate cylinder 41a, 41b, 42a, 42b, 43a, 43b, 44a, 44b in the axial direction. As shown in FIG. 20, the fan-out suppression device 72A of the fifth embodiment has four mobile devices 82a, 82b, 82c, 82d, and each mobile device 82a, 82b, 82c, 82d has two mobile devices 82a, 82b, 82c, 82d. The pressing roller 81 can be moved. Each of the moving devices 82a, 82b, 82c, 82d sandwiches the web W at a position facing four regions on the plate cylinders 41a, 41b, 42a, 42b, 43a, 43b, 44a, 44b to which the printing plates can be attached and detached. Placed in.

For example, in FIG. 2, ink and dampening water are supplied to the shaded portions of the plate cylinders 41a, 41b, 42a, 42b, 43a, 43b, 44a, 44b, and the other white portions. Ink and dampening water are not supplied. At this time, as shown in FIG. 20, for the fan-out suppression device 72A, the color paper surface distribution information 108 is the position of the number of color paper surfaces 3 and the number of color paper surfaces 3. Although not shown, a fan-out preset value for the color paper surface distribution information 108 is preset. Here, in the color paper surface distribution information 108, the ink supply amount and the dampening water supply amount to the web W are larger in the region where the color paper surface is located. For example, when the color paper surface is at the edge 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, increase the fanout preset value. Specifically, the amount of movement of the pressing roller 81 by the moving device 82c located opposite to the region where the color paper surface is located is increased.

Since the printing control method of the fifth embodiment is the same as that of the first embodiment, the description thereof will be omitted.

[Action and effect of this embodiment]
The fan-out suppression control device according to the first aspect moves the plurality of pressing rollers (pressing members) 81 arranged at predetermined intervals in the width direction of the web W and the plurality of pressing rollers 81 to move the web W. A pressable moving device 82 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 paper surface configuration information for printing on the web W are provided.

The fan-out suppression control device according to the first aspect controls the movement amount of the plurality of pressing rollers 81 based on the paper surface configuration information that the control device 91 prints on the web W. The amount of fan-out of the web W varies depending on a wide variety of printing conditions for the web W. Therefore, by controlling the movement amount of the plurality of pressing rollers 81 based on the paper surface configuration information, the adjustment time of the moving amount of the pressing rollers 81 can be shortened, and the fan-out suppression control can be simplified. Further, in recent years, various printing forms are required, and skillful skill considering various printing conditions is required for adjusting fanout, but it is not a skilled worker or a young worker. Even if it becomes easy to adjust. As a result, waste paper can be reduced and printing costs can be reduced.

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 pressing rollers 81 by the moving device 82 based on the cigarette width position information 107 of the web W as the paper surface composition information. As a result, the movement amount of the pressing roller 81 is adjusted based on the cigarette width position of the web W, which is a factor for changing the fan-out amount, and the adjustment time of the moving amount of the pressing 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 pressing rollers 81 by the moving device 82 based on the color paper surface configuration information 101 in which the control device 91 prints on the web W. As a result, the moving amount of the pressing roller 81 is adjusted based on the color paper surface configuration that causes the fan-out amount to fluctuate, and the adjustment time of the moving amount of the pressing 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 pressing rollers 81 by the moving device 82 based on the color page number information 102 that the control device 91 prints on the web W. As a result, the movement amount of the pressing roller 81 is adjusted based on the number of color pages that cause the fan-out amount to fluctuate, and the adjustment time of the moving amount of the pressing 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 pressing rollers 81 by the moving device 82 based on the dampening water information 105 in which the control device 91 supplies the dampening water to the web W. As a result, the moving amount of the pressing roller 81 is adjusted based on the supply amount of dampening water, which is a factor for changing the fan-out amount, and the adjustment time of the moving amount of the pressing roller 81 can be shortened.

The fan-out suppression control device according to the sixth aspect controls the amount of movement of the plurality of pressing rollers 81 by the moving device 82 based on the image dose information 106 of the printing plate on which the control device 91 prints on the web W. As a result, the moving amount of the pressing roller 81 is adjusted based on the image dose of the printing plate, which is a factor of fluctuation in the fan-out amount, and the adjustment time of the moving amount of the pressing roller 81 can be shortened.

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

In the fan-out suppression control device according to the eighth aspect, the control device 91 controls the movement amount of the plurality of pressing rollers 81 so as to be different between the acceleration and deceleration of the transport speed of the web W, whereby the web W The amount of movement of the pressing roller 81 can be adjusted to an appropriate value with respect to the amount of fan-out that fluctuates during acceleration and deceleration of the transport speed of.

The fan-out suppression control device according to the ninth aspect has an initial preset value PS1 in which the control device 91 controls the amount of movement of the plurality of pressing 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 movement amount of the plurality of pressing rollers 81 by the moving device 82 is controlled by the adjustment preset value PS2. As a result, the movement amount of the plurality of pressing rollers 81 can be controlled with high accuracy by maintaining the rewritten adjustment preset value PS2.

The fan-out suppression control device according to the tenth aspect has an initial preset value PS1 that controls the amount of movement of the plurality of pressing rollers 81 by the control device 91 or the moving device 82, and a plurality of pressing using the initial preset value PS1. When the movement amount of the roller 81 is controlled, if the movement amount of the plurality of pressing rollers 81 is adjusted from the outside, the initial preset value PS1 is used from the position of the pressing roller 81 for which the movement amount adjustment processing is performed. The control of the movement amount of the plurality of pressing rollers 81 by the moving device 82 is continued. As a result, even when the adjustment process is performed from the outside, the plurality of press 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 process. Since the amount control is continued, the movement amount 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 pressing rollers 81 by the moving device 82 based on the paper quality information 103 of the web W. As a result, the movement amount of the pressing roller 81 is adjusted based on the paper quality information of the web W, which is a factor for changing the fan-out amount, and the adjustment time of the moving amount of the pressing 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 pressing rollers 81 by the moving device 82 based on the color paper surface distribution information 108. As a result, the movement amount of the pressing roller 81 is adjusted based on the color paper surface distribution that causes the fan-out amount to fluctuate, and the adjustment time of the moving amount of the pressing roller 81 can be shortened.

The printing machine according to the thirteenth aspect is a printing machine in which a plurality of printing units U1 to U6 are arranged at predetermined intervals along the vertical direction and the web W is conveyed upward in the vertical direction. The 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 movement amount of the plurality of pressing rollers 81 based on the paper surface configuration information, so that the adjustment time of the movement amount of the pressing rollers 81 is shortened, and the fan-out suppression control is simplified. Can be achieved.

In the printing press according to the fourteenth aspect, the printing units U1 to U6 have ink supply devices 51a, 51b, 52a, 52b, 53a, 53b, 54a, 54b and a plate cylinder 41a, 41b, 42a, 42b, 43a, 43b. , 44a, 44b and blanket cylinders 31a, 31b, 32a, 32b, 33a, 33b, 34a, 34b, and the size of the plate cylinders 41a, 41b, 42a, 42b, 43a, 43b, 44a, 44b is 4 of newspapers. It is set to page width x 1 page circumference. As a result, in a 4 × 1 rotary printing press, fan-out can be appropriately suppressed and print quality can be improved.

The printing control method according to the fifteenth aspect is a fan-out preset value set based on a step of slow-moving the printing unit U1 (newspaper offset rotary printing press 10) and paper surface configuration information for printing on the web W. The process of inputting, the process of controlling the fan-out suppression devices 71, 72, 73 based on the fan-out preset value, the process of starting printing on the web W, and the process of fine-tuning the fan-out preset value in advance. It has a step of accelerating to a set predetermined printing speed. As a result, the adjustment time for the amount of movement 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 suppressing devices 71, 72, 73, a device in which a plurality of pressing rollers 81 press the web W from one side of the web W is applied, but the device is limited to this configuration. is not it. For example, a plurality of pressing rollers 81 may press the web W from one side and the other side of the web W. Further, 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.

Further, in the above-described embodiment, in the newspaper offset rotary printing press 10, the printing press management device manages various printing information, and the control device 91 prints from the printing press management device to the web W. Paper composition information is input.

R Paper feed device R1 to R7 Paper feed unit I Infeed device I1 to I7 Infeed unit U Printing device U1 to U6, U11 to U62 Printing unit D Webpass device D1, D2 Webpass unit F folding machine F1, F2 folding unit 10 Offset rotary printing press for newspapers (printing machine)
21,22,23,24 Stacks 31a, 31b, 32a, 32b, 33a, 33b, 34a, 34b Blanket cylinders 41a, 41b, 42a, 42b, 43a, 43b, 44a, 44b Plate cylinders 51a, 51b, 52a, 52b, 53a, 53b, 54a, 54b Ink supply device 61a, 61b, 62a, 62b, 63a, 63b, 64a, 64b Wetting device 71, 72, 72A, 73 Fanout suppression device 81 Pressing roller (pressing member)
82 Moving device 83 Support plate 84 Bracket 85 Support shaft 86 Drive device 87 Screw shaft 88 Moving member 90, 90A, 90B, 90C Fan-out suppression control device 91 Control device 101 Color page composition information 102 Color page number information 103 Paper quality information 104 Printing Speed information (web transport speed information)
105 Foam water information 106 Image dose information 107 Cigarette width position information 108 Color paper surface 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 that controls the amount of movement of the plurality of pressing members by the moving device based on the paper surface configuration information to be printed on the web, and a control device.
A fan-out suppression control device equipped with. The control device controls the amount of movement of the plurality of pressing members by the moving device based on the cigarette width position information of the web as the paper surface composition information.
The fanout suppression control device according to claim 1. The control device controls the amount of movement of the plurality of pressing members by the moving device based on the color paper surface configuration information for printing on the web.
The fanout 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 the color page number 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 the dampening water information that supplies the dampening water to 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 the image dose information of the printing plate that prints on 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 transport speed information of 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 so as to be different between when the web transport speed is accelerated and when the web is decelerated.
The fanout suppression control device according to claim 7. The control device has an initial preset value that controls the amount of movement of the plurality of pressing members by the moving device, and when the initial preset value is rewritten, the rewritten adjustment preset value is stored and the adjustment preset is stored. The value controls the amount of movement of the plurality of pressing members by the moving device.
The fan-out suppression control device according to any one of claims 1 to 8. The control device has an initial preset value for controlling the movement amount of the plurality of pressing members by the moving device, and when controlling the movement amount of the plurality of pressing members using the initial preset value, the plurality of pressing members are externally controlled. When the movement amount of the pressing member is adjusted, then the moving amount of the plurality of pressing members by the moving device using the initial preset value from the position of the pressing member to which the moving amount adjustment processing is performed. Continue to control
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 paper quality information of the web.
The fan-out suppression control device according to any one of claims 1 to 10. The control device controls the amount of movement of the plurality of pressing members by the moving device based on the color paper surface distribution information.
The fan-out suppression control device according to any one of claims 1 to 11. In a printing machine 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 12 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 plate cylinder is set to 4 page width x 1 page circumference of the newspaper.
The printing machine according to claim 13. The process of slow-moving the printing press and
The process of inputting the fanout preset value set based on the paper composition information to be printed on the web, and
A process of controlling the fan-out suppression device based on the fan-out preset value, and
The process of starting printing on the web and
The process of fine-tuning the fanout preset value and
A process of accelerating to a preset printing speed and
A print control method having.

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