JPH0659970B2 - Paper folding press folding machine - Google Patents

Description

Description: TECHNICAL FIELD OF THE INVENTION The present invention relates to a folding machine that cuts and folds a web printed in a web-fed rotary printing machine into predetermined sizes.

[Prior art]

Between the paper entry section and the origami section of the folding machine in the web-fed rotary printing press, the web that is dried and cooled after printing and supplied to the paper entry section is folded in half in the width direction or turned downward. An inverted triangular plate-shaped forma that is sent to the origami section is provided.
The number and inclination direction of this type of formater are determined depending on the type of printed matter, the surface of the signature to be printed, and the like. That is, in the case of a leaflet or the like, one web or two webs in which one or two webs are stacked and half-folded in the width direction are formed in a row in the case of a book, and in the case of a book or the like. In this system, one turn bar is arranged side by side with one foamer, and two signatures of two rows half-cut in the width direction with a slitter are turned by the fronter and the turn bar. Further, a so-called double phoma having two phoma is provided with a phoma instead of the above turn bar, and in this case, the phoma is used as a deflecting means of the web, or as a means for folding the web in half in the width direction. . In the case of a double formater, 2
The same direction forma which inclines each one in the same direction,
There are three types of printing patterns and slitter positions, such as a counter-former that inclines two lower ends in the opposite direction so that their lower ends are close to each other, and a rearward foamer that inclines two lower ends in the opposite direction and makes their upper ends closer to each other. To be selected.

As described above, various types are available for the number and the inclination direction of the formaters, and these types are selected according to the type of printed matter. This type is conventionally determined at the time of delivery from the printer manufacturer to the printing company. However, it has never been changed, but since it is a printing machine that has been used for more than 10 years, consumer preferences change and the types of printed materials printed by printing companies change during this period. In the past, the printing machine had to be replaced or remodeled each time, which placed a heavy burden on the printing company, which in turn increased the unit price of the printed matter.

On the other hand, the former has been a fixed type in general, and the position of the folding edge does not change even if the paper size, that is, the width of the web, changes, but in recent years the paper size has become extremely small due to the diversification of printed materials. In this case, if the formater is fixed, it is necessary to move the troublesome paper feeder or paper feed tape every time the paper size changes. It is desirable to keep the center position of the Ding unchanged.

[Outline of Invention]

The present invention has been made in view of the above points, and includes a pair of subframes including a foamer, a drag roller located above the foamer and drivingly connected to the driving side, and a paper pressing roller pressed against the drag roller. To form a forma unit, the subframe of the forma unit is movably supported by the upper and lower guide rails provided on the main frame side in the width direction of the paper immediately after passing through the fora unit, and for moving the forma unit. By providing the driving means on the main frame side,
The main frame and the forma unit are shared, and it is possible to freely select the number and the inclination direction of the forma by simply putting in and taking out the forma unit and recombining some parts, and it is possible to correspond to various kinds of printed materials, and move the forma, drag roller, etc. The present invention provides a folding machine for a web-fed rotary printing press. Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

〔Example〕

1 to 3 show an embodiment of a folding machine according to the present invention. FIG. 1 is a schematic side view of an upper half portion thereof, FIG. 2 is a plan view of the same, and FIG. 3 is one of a foam unit supporting portion. It is a partial fracture expansion front view and an expansion side view. In the figure, a folder 1 is provided with a folding cylinder (not shown), a folding cylinder group such as a folding cylinder, and a folding frame 2 that supports a stapler device, a paper discharging device, and the like. A pair of left and right main frames 3 and 4 formed in a frame shape are connected and fixed by a plurality of stay pipes 5 to the upper surface of the body group installation location. This embodiment is a double-former type folding machine.
The drawing shows a web through which two rows of webs are put out, and 6 is a wide web which is dried and cooled after printing and sent. A plurality of guide rollers 7 to 11 are axially mounted at the inlet end between the left and right main frames 3 and 4. Above the guide roller 11, a first rotary roller is driven to rotate from the driving side. The drag roller 12 of FIG. A thin disk-shaped slitter 14 supported by a swingable arm 13 is detachably engaged with an annular groove provided at the center of the drag roller 12 in the width direction. By engaging with the annular groove, the web 6 pulled out by the drag roller 12 via the guide rollers 7 to 11 is cut at the center portion in the width direction. A second drag roller 15 for pulling out one of the cut webs of two rows 12A by driving rotation from the driving side is provided diagonally above and downstream of the first drag roller 12 on the left and right main frames 3, 3. A plurality of paper pressing rollers 16 are press-contacted to the four shafts. Code 17
What is indicated by is a compensator roller for adjusting the relative longitudinal phase of one half of the web 12A and the other half of the web 12B, which is supported by a swingable arm 18 and is attached to the web 12A. ing. Further, between the brackets 19 projecting upward from the rear ends of the left and right main frames 3 and 4, a web 12A guided from the drag roller 15 is abutted, and a guide roller 20 for diverting it obliquely downward is mounted.

On the other hand, on the upper surface of the folder frame 2, the main frame 3,
A pair of left and right rails 21 which are slightly shorter than the width of 4 are fixed in the vicinity of the main frames 3 and 4 by bolts 22 in parallel with the main frames 3 and 4, and rails are provided above the inner surfaces of the left and right main frames 3 and 4. A pair of front and rear rails 23 formed in parallel with 21 and formed in a small size are fixed by bolts 24. Reference numeral 25 is a sub-frame provided with a total of four front, rear, left and right.
A U-shaped slide fitting 26 having a dovetail groove for engaging with is fixed by a bolt 27, and a slide fitting 2 having a dovetail groove for engaging with the rail 23 at each upper end portion.
8 is fixed by a bolt 29. The pair of left and right sub-frames 25 are connected by a pair of upper and lower stay pipes 30, and the upper ends of the webs 12B, 1 guided from the first drag roller 12 and the guide roller 20, respectively.
A third drag roller 31 for pulling out 2A by driving rotation from the driving side is mounted on the shaft. A paper pressing roller 32 is pressed against the drag roller 31. Further, a corner stay 33 is supported between the left and right sub-frames 25 so as to be close to the drag roller 31.
A support stay 34, which can be adjusted to move forward and backward in the front-rear direction, is provided horizontally from the middle and high position. Reference numerals 35 and 36 denote a former formed in the shape of an inverted triangle plate, which is supported at two upper and lower positions by the angular stay 33 and the support stay 34, and its upper end is brought close to the peripheral surface of the drag roller 31. The lower ends are slanted so as to be close to each other on both sides of the machine center line L. These forma 35,
The reference numeral 36 has a function of causing the webs 12A and 12B to abut on one of the triangular edges to turn the webs 12A and 12B downward at right angles. Further, when the web pulled out from the drag roller 31 has a wide width, it has a function of folding the web in half in the width direction. Side frame 25 formed in this way
The one frame unit 37 is formed by the frame 35, the drag roller 31, and the like, and the other side frame 25, the foam 36, and the drag roller 31.
The other format unit 38 is constituted by the above. And, these format units 37 and 38 are
It is movably supported in the left-right direction shown in FIGS. 1 and 2, that is, in the width direction of the paper folded or deflected by the formers 35 and 36 as described later.

Next, the drive means for moving the format units 37, 38 will be described. Above the front end of the folding machine frame 2, a pair of upper and lower drive shafts 39 and 40 are rotatably supported by the main frames 3 and 4, and the main shaft 3 of the drive shaft 39 is supported.
Motors 41 and 42, which drive the drive shafts 39 and 40 in synchronism with each other, are directly connected to the drive shaft 40 and the drive shaft 40 from the main frame 4. In addition, between the main frame 3 and the side frame 25 and between the main frame 4 and the side frame 25, the lower conductive shafts 43, which have substantially the same length as the rail 21,
Bracket 4 with 44 protruding from main frames 3 and 4
5, the bevel gear 46 fixed to the shaft is supported by the drive shaft 4 and is restricted from moving in the axial direction.
The bevel gear 47 fixed to 0 meshes. Also,
Threads are formed at the rear ends of the lower transmission shafts 43 and 44, and these threaded portions are screwed with a screw member 48 protruding from the side frame 25. Reference numeral 49 is a bracket which projects from the side frame 25 side and rotatably and slidably supports the lower conductive shafts 43 and 44. Further, the lower conduction shafts 43, 44
Above the front end of the upper threaded upper conducting shaft 50, 5
A bracket 52 in which 1 projects from the main frames 3 and 4
The bevel gear 53 fixed to the drive shaft 39 is rotatably supported by the bevel gear 5 fixed to the drive shaft 39.
It meshes with 4. Further, the threaded portion of the upper conductive shaft 50 is screwed with the female screw member 55 protruding from the side frame 25.

The paper-feeding operation for one web and two rows of paper by the folding machine configured as described above will be described. Web 6 dried and cooled after printing
Goes through the guide rollers 7 to 11 to the first drag roller 1
2 is pulled out, but at this time, the slitter 14 moves to the arm 1
The web 6 is half-cut in the width direction because it is engaged with the annular groove of the drag roller 12 by the swinging of the web 3. One web 12A of the two half-cut webs is adjusted in relative phase with the other web 12B by the compensator roller 17 and then pulled out by the drag roller 15 and guided to the guide roller 20 to be deflected. It The deflected web 12A is pulled out by the drag roller 31 and supplied to the former 36, and is directed downward while being attached to one end edge of the former 36 and is guided to the origami cylinder group. On the other hand, the other web 12B half-cut by the slitter 13 is pulled out by the third drag roller 31,
It is deflected by being directed downward while being attached to one edge of the former 35, and is guided to the origami cylinder group. The two rows of webs 12A and 12B thus fed to the origami cylinder group
Are cut and folded into a predetermined size in the lengthwise direction by the origami cylinder group, and then discharged. Further, depending on the specifications of the signature, the paper is folded by a folding device (not shown) in the direction orthogonal to the folding direction by the folding cylinder group and then discharged.

When the paper size is changed, when the motors 41 and 42 are simultaneously rotated, the upper and lower drive shafts 39 and 40 are synchronously rotated, and the upper and lower transmission shafts 50 and 43 are meshed with the bevel gears 53, 54, 46 and 47. Rotate synchronously. Therefore, the screw units and the female screw members 55 and 48 are screwed together, so that the former units 37 and 38 are moved by the same amount in the perspective direction with respect to the machine center line L. That is, the format 3
7 and 38 will move in the width direction of the web immediately after passing the formers 35 and 36. As a result, even if the paper size changes, the center position of the webs fed from the formers 35 and 36 can be made the same as before the paper size is changed, so that it is not necessary to move the tipper device or the like.

The above description has been made for the two-row one-web arrangement, but the two-web two-row arrangement can be performed using the same folder. That is, as shown in FIG. 4, the multicolor printed web 6A is guided to the former 35 through the guide rollers 7 to 11 and the drag rollers 12 and 31, and the monocolor printed web 6B is supplied to the compensator roller 17, the drag roller 15, the guide roller 20, and the guide roller 20. It leads to the former 36 via the drag roller 31. When the webs 6A and 6B thus guided are brought into contact with both end edges of the formers 35 and 36 and pulled out downward, two rows of webs folded by the former are obtained.

Further, as shown in FIG. 5, the upper and lower webs 6A and 6B are merged by the drag roller 31 so that the two webs are overlapped to form the foamer 35.
When it is supplied to, a web folded and folded in a double layer is obtained.

Further, as shown in FIG. 6, the formers 35 and 36 are inclined in the same direction to form the same direction, or as shown in FIG. 7, the upper ends of the formers 35 and 36 are brought close to each other to form the rear former, or By inclining the forma 35 shown in FIG. 5 in the opposite direction to form the inverse forma, it is possible to deal with various printed matters, and it is possible to freely select whether the printed pattern is printed on the front surface or the back surface. . In the case of this device, the framers 35 and 36 are the subframe 2
5. Since it is unitized as the former unit 37, 38 together with the drag roller 31, etc., when the number of the former is increased or decreased or the inclination direction is changed as described above, the former unit 37 without changing the main part of the folder 1. This can be dealt with by simply inserting and removing 38 along the rails 21 and 23, or by slightly modifying the moving device of the forma units 37 and 38 and the driving device of the drag roller 31.

〔The invention's effect〕

As is apparent from the above description, according to the present invention, in the folding machine of the rotary web printing press, the former, the drum roller located above the former and drivingly connected to the driving side, and the paper pressed against the drum roller. A pressing unit is supported by a pair of sub-frames to form a forma unit, and the sub-frames of this forma unit are supported by the upper and lower guide rails provided on the main frame side so as to be freely movable in the width direction of the paper immediately after passing through the forma. In addition, by providing the drive unit for moving the formater unit on the main frame side, it becomes easy to move the formater, the drag roller and the like, and the workability when changing the paper size is improved. In addition, since it is possible to increase and decrease the format and change the inclination direction by simply inserting and removing the format unit and modifying some parts, it is not necessary to replace the folding machine even if the type of printed matter handled by the printing company changes The printing cost can be reduced and the printing cost can be reduced. Also, the manufacturer of the printing machine can stock or assemble the unit in units, which significantly reduces the manufacturing cost.

[Brief description of drawings]

1 to 7 show an embodiment of a folding machine for a web-fed rotary printing press according to the present invention. FIG. 1 is a schematic side view of the upper half of the same, FIG. 2 is a plan view of the same, and FIG. 3 is a format unit. Partially broken enlarged front view and enlarged side view of the supporting portion, FIGS.
The drawings respectively show the arrangement of the forma and the paper threading diagram as another embodiment of the present invention. FIG. 4 shows two rows of opposing forma type two webs, and FIG. FIG. 6 is an arrangement and paper threading diagram of the formaters showing the same-direction two-row feeding in the same direction, and FIG. 7 is a rear-former two-row feeding. 1 ... Folding machine, 3, 4 ... Main frame, 21, 23 ...
... rails, 25 ... subframes, 31 ... dragging rollers, 32 ... paper pressure rollers, 33 ... corner stays, 34 ...
... Support stays, 35,36 ... Formers, 37,38 ...
… Former unit, 39,40 …… Drive shaft, 41,4
2 ... Motor, 44 ... Lower conduction shaft, 50 ... Upper conduction shaft.

Claims (1)

[Claims] A pair of sub-frames (1) comprising a foamer (35), a drag roller (31) located above the foamer and drivingly connected to the driving side, and a paper pressing roller (32) pressed against the drag roller. 25) supported by the forma unit (37)
And the upper and lower guide rails on the main frame (3) side of the sub-frame of this format unit.
(21,23) movably supports the paper in the width direction immediately after it has passed through the foamer, and at the same time, the foamer unit (37)
A folding machine for a web-fed rotary printing press, characterized in that the driving means for moving is provided on the main frame (3) side.