JPS62135365A - Newpaper rotary press - Google Patents

Abstract

PURPOSE:To enable 12 pages to be printed by a single black ink printing system, by setting the top-bottom length of one page of a newspaper in the width direction of a printing cylinder and setting the horizontal width of one page of the newspaper in the circumferential direction of the printing cylinder. CONSTITUTION:In a system wherein the width W of a newsprint web is divided by the to-bottom length (a) of one page of a newspaper, assuming the horizontal width of one page of the newspaper to be (b), the effective printing width of a printing cylinder for printing in a black ink is 3a, and the effective circumference of the cylinder is 4b. The diameter D of each of plate cylinders and blanket cylinders P is 4b/pi. Each printing unit PU is provided with slitter knives 11 at two parts to trisect the web W in the longitudinal direction. Turn bars 19, 20... change the moving direction of each of split webs W1... being fed by 90 deg., and introduce them to a folder F in a stacked state. Therefore, one unit of the press produces three 4-page sheets of newspaper, namely, 12 pages in total.

Description

DETAILED DESCRIPTION OF THE INVENTION a) Industrial Application Field The present invention relates to a rotary printing press for newspapers, and more particularly to a rotary press that can increase the maximum number of newspaper pages printed per press.

b) The size of one page of a conventional technology newspaper is almost the same in Japan, unlike in other countries.As shown in Figure 1 (C), the vertical length a is 5461 cm, and the horizontal width is 406 mm. 4 mm, and the contrast a:b is approximately in the ratio of 4=3.

In the above, left and right vAb = 406.4 mm.

The width W of the newspaper roll used, especially the A roll, is 162
This is closely related to the fact that the width is 6m + Otori, and the reason for this is as shown in Figure 1 CB), the horizontal width W'1626 of the roll paper.
This is said to be the reason why the number 406.51, which was obtained by dividing m5 into four, was set as the left and right @b of page 1 of the newspaper.

Based on this definition, the dimensions of conventional printing IFp were also determined, and its effective printing width was determined to be twice the vertical length a of one newspaper page.

C) Problems to be Solved by the Invention The problem to be addressed by the present invention is that when printing newspapers using the conventional system mentioned above, the newspaper printing capacity per printing machine is calculated based on the number of pages. Therefore, if you want to print 24 pages using that system, you will need as many facilities as shown in the solid line and the broken line, that is, 3 machines, as shown in Figure 4. It requires printing units PUI, PU2, PU3, three paper feed units WUI, WO2, WO3, and one folding machine F, and in fact, it requires that much capital investment and equipment space.
In addition, personnel expenses were considered to be necessary.

However, if only the equipment indicated by the broken line shown in Fig. 4, that is, the remaining equipment after removing the third paper feed unit P
Assuming that a 4-page newspaper can be published, the capital investment will be about 2/3 of the conventional amount, so it is not only economical, but also
The equipment space will also be reduced to about 273 compared to the conventional system, and the number of workers will also be reduced proportionally, so the productivity improvements will be noteworthy.

The object of the invention is to provide a newspaper rotary press with the above-mentioned characteristics.

d) Means to solve the problem The present invention achieves the above objectives.

The conventional method of dividing the width W' of the roll paper by the left and right width of one newspaper page (see Figure 1B) has been changed, and as shown in Figure 1 (A), the width W' of the roll paper is divided by the vertical length of one newspaper page. We came up with a new system for dividing by a, and built each part of the rotary press based on that system.

The vAW of newspaper roll paper is generally 1626 mm in A-wrap. When using this roll paper, 162
The value of dividing 6tm into three equal parts is 5421!1lll, which is newspaper 1.
The vertical length a of the page is 4 mm shorter than the conventional value.

When the above basic idea is made tangible in black printing, the effective printing width of the black printing cylinder P is 3a and the effective circumference is 4b, while the running paper printed by the cylinder is passed through a pair of slitters. Divide the running paper into three equal parts in the longitudinal direction with a knife, change the course of each divided paper by 90 degrees, and overlap each other 3
Each running paper is introduced into the folding machine via the book turn bar.

When a printing cylinder PS for monochrome reprinting is attached to the printing cylinder P, its effective printing width is 3a, and its effective circumference is 2b.
becomes.

When adding multicolor printing to the black printing, the effective printing width of the printing cylinder PM for multicolor printing is 2a and the effective circumference length is 2b, while the effective pressing width of the common impression cylinder C is 2a.
, the effective circumference length is 4b.

The above relationship will be explained in comparison with the conventional method as shown in Table S1.

Table 1 The comparison between the vertical length a and the horizontal width of one page of a newspaper is, as mentioned above, about 423 force 1, etc. In Table 1, 3a and 4b are approximately the same number. .

e) Function As shown in Fig. 1 (A), the newspapers produced by the l-unit printing press with the printing cylinder P for ink printing include three 4-page newspapers, so the total number of pages is It will be 12 pages. This figure is 1.5 times the newspaper production of 8 pages using the conventional method (see Figure 1B).

Therefore, when publishing a 24-page newspaper, as shown in Figure 4, the double-sided stone printing BB type printing unit PUI
, PU2 and two paper feeders WU1 and WU2 are sufficient, and one printing unit PU3 and paper feeder WU3 are not required.

Furthermore, when publishing a 24-page newspaper using the method of the present invention, the 24 pages can be folded into one page by collecting old and new pages.
It becomes possible to fold out the section. On the other hand, it is possible to perform collect folding on a folding machine using the conventional method, but since the conventional method goes through former folding, the folding method is inevitably two-section folding, and the
Section folding was not possible.

f) Embodiment The embodiment in FIG. 2 (solid line) shows the BB type printing unit (PU) which enables double-sided stone printing of running paper in comparison with that of the conventional system (dashed line).

In the case of the BB type, the diameters of the plate cylinder and blanket cylinder P based on the method of the present invention are D=4, as shown in FIG. 1(A).
b/π. On the other hand, each diameter d of the printing cylinder p in the conventional method is d=2a, as shown in FIG.
/π. Here a=4. Since b=3, the diameter of the printing cylinder according to the present invention is 1.5 times larger than the diameter d of the printing cylinder according to the conventional method.

However, the diameter 2b/
π is 3 from the diameter 2a/π of the conventional monochrome reprint cylinder.
/4 small and main printing cylinder diameter P=4b/ according to the present invention
The single-color reprint ll'il P S, which is also 1/2 smaller than π, can therefore be installed for both blanket cylinders P, P, respectively. This makes it possible to insert monochrome reprints on all pages of a newspaper. On the other hand, since the reprint cylinder of the conventional system has a large cylinder diameter, it is limited to installation on one side and cannot be installed on both sides, and single-color reprint can only be inserted on one side of the paper.

The embodiments shown in Figs. 4 to 6 are the double-sided stone printing BB shown in Fig. 2.
This is a simplified diagram of each part of a rotary press that can print 24 pages with two presses.

In FIG. 4, the paper feeders WUI and WO2 are conventionally used models, which can also be used in the present invention, and the paper rolls Wl and W2 are conventionally well-known newspaper A@ki (1628 mm), B
You can use winding (1092+*m) and E winding (546 chants). Frame spans may also be of approximately the same dimensions as conventional types.

In FIG. 4, 10 is a printing drag roll 11 is a slitter knife, and in the present invention, each printing unit y) PU
1 and PU2, and these knives divide the e-reserves W1 and W2 into three equal parts in the longitudinal direction, as shown by the cut-off lines 12.12 in FIG. 1(A).

In the conventional method, the paper web is divided into two equal parts in the longitudinal direction, as shown by the cutting line 12 in FIG. In FIGS. FI4 to FI6, 13 is the H side L of the running paper W1.
/3 width divided paper, 14 is M side 1/311C divided paper of running paper W1, 15 is center 1/3 width divided paper of running paper Wl, 16 is H side 1/3 width divided paper of running paper W2, 17 if yt
Stamped paper W 2 (7) H[1/3 #;A Divided paper,
Reference numeral 18 denotes a paper divided into a central ⅓ width of the running paper W2. Further, 19 is a turn bar for divided paper 13, 20 is a turn bar for divided paper 14, 121 is a turn bar for divided paper 1-5, 22 is a turn bar for divided paper 16, and 23 is a turn bar for divided paper 17. , 24 is the turn l for the dividing paper 18
Each turn of them! (- changes the course of each divided running paper by 90 degrees and introduces them into the folding fiF in a state where they overlap each other.

The configuration of the folding machine F is as follows: The conventional method uses a former device to fold the running paper in half in the longitudinal direction as the first fold, and then divides and folds the running paper in the width direction using the folding cylinder device as the second fold. However, according to the method of the present invention, as shown in FIG. 5, the folding cylinder 25 is provided in the first folding part Fa, and
Make a chisel collar fold a2B on b, and do not use a former.

The circumference of the folding cylinder 25 is twice the left and right width of one newspaper page (
2b) is an integral multiple of 1, for example 4b.

On the other hand, the circumferential length of the conventional method is as follows.

The vertical length of one newspaper page is a! ! It was several times higher, for example 2a.

In the embodiment shown in FIG. 5, the circumferential length of the saw cylinder 27 is 2b, and the circumferential length of the jaw cylinder 28 is 4b. Reference numeral 29 is a fan for discharging one-page newspapers, and 30 is a conveyor for discharging one-page newspapers.

However, this fan and conveyor are not needed if the machine is only used for folding chisels and collars.

g When a needle 33 for collect folding is provided on the A cylinder 27 to perform collect folding, 12
It is possible to fold out a 24-page newspaper section. However, in the case of straight folding only, this needle 33 is unnecessary. With the conventional method, it is possible to perform collect folding with a folding machine, but in this case, collect folding is performed after 7j41 folding is performed with a former device, which is not only inconvenient as it results in 2-section folding, but also 1-section folding. The printing unit has a maximum of 8 pages, 2 sections (16 pages), and the amount of beige is also small.

31 is a fan for discharging newspapers folded into 1/2 page size by chopper folding, and 32 is a conveyor for discharging the newspapers.

The embodiment shown in FIG. 3 (solid line) enables single-sided multicolor printing (up to 4 colors) of the running paper, or by adding a known double-ender device (not shown), double-sided multicolor printing (up to 4 colors) of the running paper. The satellite-type printing unit (SPU) that enables printing in four colors is shown in comparison with that of the conventional method (dashed line).

In the case of the satellite type, according to the present invention, the effective printing width of the flPM (plate cylinder and plancher) is 2a and the effective circumference length is 2b, whereas in the conventional method (dashed line), the former is 4b and the latter is 2a. Therefore, the printing width is 2/3. 3/4 in lrI diameter
While the common impression cylinder C is also smaller and lighter, the present invention has the former 2a and the latter 4b, and the conventional method (broken line) has the former 4b and the latter 4a, so the pressing width is 2/3 and the cylinder diameter is 3. /4, it is smaller and lighter.

This satellite type printing 2) SPU is 1, for example, 4th
It is installed at the position of PU3 indicated by the broken line in the figure, and BB type printing unit PU1. When used in conjunction with PU2, multicolored printed paper can be inserted into any desired page surface of up to 24 pages of a newspaper.

If the satellite printing unit SPU is attached, a slitter knife (not shown) that can divide the running paper after multi-color printing into two equal parts in the longitudinal direction and the path of each divided running paper can be changed by 90 degrees. folding machine F.
Two turnpers (not shown) are installed exclusively for multicolor printing.

g) Effects of the Invention As detailed above, in the present invention, the arrangement of newspaper printing on the printing cylinder P is completely reversed vertically and horizontally compared to the conventional method, so that the vertical and horizontal length a of one newspaper page can be printed. While the width of the IMF is taken in the width direction, the left and right width of one newspaper page is taken in the circumferential direction of the printing cylinder P.As a result, the black printing unit) PUI stand can print 8 newspaper pages with the conventional method. However, with the present invention, it was possible to achieve 1.5 times as much.
In other words, since it is possible to print 12 pages, if this performance is realized in a 24-page newspaper printing rotary press (Fig. 4), it will be possible to print 12 pages (ink printing unit) in contrast to the conventional method.
This eliminates the need to install one each of paper feeder WU3 and paper feeder WU3, and can be covered by 2/3 of the equipment investment and 2773 equipment spaces compared to the conventional method.

Further, according to the present invention, since a former folding device is not required, 24 pages of a newspaper can be folded in one section by performing collect folding with the folding machine FF425.

When the method of the present invention is embodied in a multi-color printing SPU, it is possible to reduce the size and weight by 2/3 in the cylinder width and 3/4 in the cylinder diameter compared to the conventional system.

Furthermore, when the method of the present invention is implemented in monochrome reprinting 1r4Ps, the cylinder diameter is 3/4 smaller than the conventional one, and 1/2 smaller than the diameter of the main printing cylinder P according to the present invention. ,
A single-color reprint cylinder PS can be attached to both blanket cylinders of the printing unit PU, so that single-color reprint can be applied to any of the newspaper pages.

[Brief explanation of drawings]

FIG. 1 is an explanatory diagram showing the basic concept of the present invention in comparison with a conventional method, of which FIG. 1(A) shows the relationship between the dimensions of each part of the printing cylinder and the web according to the present invention. Explanatory diagram. FIG. 1(B) is an explanatory diagram showing the relationship between the dimensions of each part of the printing cylinder of a conventional machine and the web. Figure 1 (C) is an explanatory diagram showing the vertical length and horizontal width of the new page 111 in relation to the present invention and the conventional method, and Figure 2 is
Double-sided stone printing BB type reprinting body and single color supplementary printing! A
FIG. 2 is an explanatory diagram showing the effective circumference length (solid line) of the present invention for each printing cylinder equipped with M in comparison with that of the conventional system (broken line). Fig. 3 is an explanatory diagram showing the effective circumference length (solid line) of the present invention in comparison with that of the conventional method (dashed line) for a multicolor printing satellite type printing cylinder and common orthogonal printing. FIG. 5 is a front view showing a rotary press according to the present invention (solid line) that enables page ink printing in comparison with that according to the conventional method (solid line plus broken line).
- Enlarged vertical left side view taken along line 5. FIG. 6 is a cross-sectional plan view taken along line 6-6 in FIGS. 4 and 5. FIG. a...Horizontal length of one newspaper page, b...Horizontal width of one newspaper page, W, W-...Width of the web, p...Printing cylinder using conventional method, P... ...Printing cylinder according to the present invention, PU, PUI, PU2. PU3...Double-sided stone printing BB
Type printing unit. WUI, WU2, WU3...paper feeder, PS...
...Printing cylinder for single-color reprinting, PM...Printing cylinder for multi-color printing. C...Common impression cylinder, Wl, W2...-Wrap paper. 10...Printing drag roll, 11...Slitter knife. 12... Cutting line, H side... Operating side, M side...
・Drive unit side, 13.14, 15.1B, 17.18... 1/3 width divided paper, 19.20, 21, 22, 23.24... Turn 8-1 of each divided paper F... Folding machine, Fa... First folding section, 25...
・Folding cylinder, Fb...second folding part. 26...chi, -/par folding machine. 27... Saw barrel, 28... Mouth barrel, 29...
1 page large newspaper discharge fan, 30...1 page large newspaper discharge conveyor, 31...1/2 page large newspaper discharge fan, 32...1/2 Large-page newspaper output conveyor. 33...Needle for collect folding. SPU...Sanarai 3fi printing unit. Patent applicant Tokyo Kikai Seisakusho Co., Ltd. Representative Patent attorney Mamoru Sanne (B
) Figure (A)

Claims (3)

[Claims] (1) When the vertical length of one newspaper page is a and the horizontal width is b, a printing cylinder for ink printing with an effective printing width of 3a and an effective circumference of 4b, and a printed running paper in the longitudinal direction It consists of a pair of slitter knives that divide the divided sheets into three equal parts, and a folding machine that introduces each divided sheet of paper through three turn bars that change the course of each divided sheet of paper by 90 degrees and overlap each other. A rotary press with a printing unit that can print 12 pages of a newspaper in black. (2) When the vertical length of one newspaper page is a and the horizontal width is b, a printing cylinder for ink printing with an effective printing width of 3a and an effective circumference of 4b, and an effective printing width of 3a , a printing cylinder for monochrome reprinting with an effective circumference of 2b, a pair of slitter knives that divide the printed running paper into three equal parts in the longitudinal direction, and a slitter knife that changes the course of each divided running paper by 90 degrees. A folding machine that introduces each running paper through three turn bars that are stacked on top of each other; (3) If the vertical length of one newspaper page is a and the horizontal width is b, then a printing cylinder for ink printing with an effective printing width of 3a and an effective circumference of 4b, and a printed running paper. A black printing unit equipped with a pair of slitter knives that divide into three equal parts in the longitudinal direction, a printing cylinder for multicolor printing with an effective printing width of 2a, an effective circumference length of 2b, and an effective press width of 2a. A multicolor printing unit equipped with a common impression cylinder with a circumference of 4b, a slitter knife that can longitudinally divide the running paper after multicolor printing into two equal parts, and the course of each divided running paper is set at 90°. It consists of a folding machine that introduces each running paper through five turn bars that are changed and overlapped with each other, and one black printing unit and one multicolor printing unit are capable of printing 12 newspaper pages in black and multicolor. Rotary press.