JP2893340B2 - Signature distribution device for rotary printing press - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a signature distributing apparatus that cuts a form-folded signature in a rotary printing press and alternately discharges the signature to another discharge path. .

[Related Art] In a rotary printing press, for example, when two types of pictures are arranged in the circumferential direction of a printing plate and printed at the same time, the web folded in a form is cut at the border of the pictures and alternately printed on a different discharge path. Is discharged. For this purpose, a folding machine conventionally attached to this type of rotary printing press is provided with a pair of left and right needle cylinders that are in contact with each other and a claw cylinder that is in contact with each of these cylinders. The cut web is alternately cut by the left and right needle cylinders, the cut portions are held by the needles, and each of the needle cylinders is replaced by the claws of the left and right nail cylinders, and is discharged to different discharge paths.

However, in such a signature dispensing device using a needle cylinder and a claw cylinder, there is a problem that a needle hole is left in a discharged printed material, and thus a cutting step for removing the needle hole is required. There is a drawback that the speeding is hindered because the pawl and the claw are operated by the cam.

Accordingly, Japanese Patent Application Laid-Open No.
A signature distribution device disclosed in Japanese Patent Application Laid-Open No. 62-21670 has been proposed. This apparatus is provided with a fan-shaped rotator having an outer circumference trajectory facing between two upper and lower discharge paths. When the rotator faces between the upper and lower discharge paths, the signature is placed on the upper tier. The signature is discharged to the discharge path, and when the rotating body does not reach between the upper and lower discharge paths, the signature is discharged to the lower discharge path.

[Problems to be solved by the invention]

However, in such a conventional signature distributing apparatus, a fixed guide is required to avoid reverse slip between the transport belt provided on the paper discharge path and the signature transported by the transport belt. As a result, when the speed of the signature is increased, there is a problem that the high-speed signature and the stationary fixed guide rub against each other, and the signature is dirty or damaged. Also, due to the relationship between the signature and the rotating body, the circumference of the rotating body cannot be increased, so that the signature protrudes from the circumferential surface of the rotating body and comes into contact with the fixed guide, thereby becoming dirty or damaged. There is.

[Means for solving the problem]

In order to solve such a problem, according to the present invention, the fan is formed in a fan shape having an arc portion having substantially the same length as the signature, and is driven to rotate from the prime mover side and is arranged in parallel in the axial direction of the shaft serving as the center of rotation. A plurality of rotating bodies, and a straight line at a crossing start point and a crossing end point with respect to the orbit formed by the rotation of the rotating bodies at different positions in the axial direction of the rotating bodies. A plurality of strips which are stretched through a paper input portion on the upstream side in the conveyance direction of the signature from the crossing start point and a first discharge path entrance on the downstream side in the conveyance direction of the signature from the crossing end point. A first conveyor belt, which is stretched in contact with each of the first conveyor belts, is separated from the first conveyor belt at a crossing start point of the orbit, and is stretched in a tangential direction of the orbit toward a second paper discharge path. A plurality of second transport belts that are bridged, A plurality of third transfer belts stretched in contact with each second transfer belt after the crossing start point and a plurality of third transfer belts stretched in contact with each first transfer belt after the crossing start point A fourth conveying belt, wherein the crossing end point is on a circling locus, and the rotation direction of the rotating body is opposite to the crossing end point when it is assumed that the linear conveyance direction at the crossing start point is extended straight. A deflecting roller for bending the first transport belt and the fourth transport belt into a V-shape in a circling path so as to be positioned in the direction.

[Action]

After the former has been folded, the signatures cut are the first and second
The sheet is conveyed while being pinched by the conveyor belt, and reaches a crossing start point with the trajectory of the rotating body. Here, the rotating body intermittently circulates, and when the rotating body and the transport signature correspond, the signature is pushed by the rotating body and transported to the second paper discharge path by the second and third transport belts, When the rotating body does not correspond to the transport signature, the signature is transported to the first paper discharge path by the first and fourth transport belts. Since there is no fixing member in the signature conveying path, and the setting of the peripheral surface length of the rotating body and the installation of the deflection roller, the signature does not interfere with the rotating body, so that the signature is not rubbed.

〔Example〕

1 and 2 show an embodiment of a signature distribution device for a rotary printing press according to the present invention. FIG. 1 is a schematic configuration diagram thereof, and FIG. 2 is a schematic configuration of a main part for explaining the operation. FIG.
In the drawing, a cutting cylinder 2 provided with a cutting blade on an outer peripheral portion and a cutting receiving cylinder 3 provided with a blade holder corresponding to the cutting blade by rotation on a peripheral surface are provided in a conveying path of the web 1 folded in a form. Are provided with their peripheral surfaces in contact with each other.
Is cut at the border of the plate and at the border of the picture, for example, to obtain a signature indicated by reference numeral 4 in FIG. 2,3
Below, a rotating shaft 5 is suspended between left and right frames and is rotating clockwise in the figure. On the rotating shaft 5, a plurality of diverter assemblies 6 as rotating bodies are axially mounted. They are axially mounted in parallel with each other in the circumferential direction.
The diverter assembly 6 is formed of a boss 6a and a pair of diverters 6b formed in a fan shape and projecting radially from the boss 6a with a phase difference of 180 ° in the circumferential direction. The length is formed slightly longer than the length of the signature 4. Reference numeral 6c denotes an outer circumference orbit of the diverter 6b. Reference numeral 7 denotes a stretcher between the rollers 8 and 9 of the paper input section and the rollers of the first paper discharge path and the rollers 10 and 11 at the entrance of the first paper discharge path (not shown) which are out of phase with the diverter 6b in the axial direction. And a plurality of first members traveling in the direction indicated by the arrow in the figure.
A conveyor belt, one side of the traveling unit which is deflected by a roller 12 is across the outer peripheral circulation path 6c of the diverter 6b ho to Isuzu straight, end point across symbol P in Fig, P ₁ is the starting point across And are respectively shown. 13 is the roller 1 in the paper input section
A plurality of first and second conveyor belts are stretched between 4, 15, 12, and 16 and rollers (not shown) of the second discharge path and rollers 17 at the entrance of the second discharge path. 2 conveyor belts, and a signature 4 with the first conveyor belt 7 up to the crossing start point P
After the traversing start point P, which is deflected by the roller 18, it is separated from the first conveyor belt 7 and extends in the tangential direction of the orbit 6 c. Further, a plurality of fourth conveying belts stretched between rollers 19 and 20 in the trajectory, rollers 10 and rollers on the first paper discharge path side are provided on the traveling surface across the trajectory of each first conveying belt 7. 21 is attached, and a traveling portion from the crossing start point P of the second transport belt 13 to the second paper discharge path includes rollers 22 and rollers 17 in the locus 6c and rollers of the second paper discharge path. A third transport belt 23 stretched between the two is attached. Further, the trajectory crossing traveling section between the first conveyor belt 7 and the fourth conveyor belt 21 is
End point traverses when the end point P ₁ across the varying over there filtrate 24 provided on the end point P ₁ near cross is assumed on the orbiting trajectory 6c, and the linear conveying direction in the cross starting point P and extended straight The diverter 6b is bent so as to be positioned in the direction opposite to the rotation direction of the diverter 6b. Note that the traveling speed of each of the conveyor belts 7, 13, 21, and 23 and the peripheral speed of the diverter 6b are increased to a speed higher than the peripheral speed of the two trunks 2, 3.

The operation of the signature distribution device configured as described above will be described. Rotate the diverter 6b, and move each conveyor belt 7, 13, 21, 23
After the printing operation is started, the web 1 that has been subjected to formal folding is cut by the cutting cylinder 2 and the cutting receiving cylinder 3 at the boundary between the plate and the boundary between the intermediate patterns, and the signature 7 is cut.
Then, the sheet is fed and conveyed between the conveying belts 7 and 13. In this case, the traveling speed of both conveyor belts 7, 13 is
, A predetermined interval is formed between the signature 4 to be conveyed and the next signature 4. As shown in FIG. 2 (a), the leading end of the conveyed signature 4 crosses the starting point P
Is reached, the leading end of the diverter 6b is also set to reach the crossing start point P.
To be fed between the second transport belt 13 and the third transport belt 23 and transported. FIG. 2 (b) is a diverter
The diverter 6b finishes pushing the signature 4 and retreats from the conveyance path, while the rear end of the cross section 6b reaches the crossing start point P, and the signature 4 continues to be conveyed and passes through the second paper discharge path. The paper is ejected.

When the leading end of the next signature 4 reaches the crossing start point P at intervals, the point where there is no diverter 6b faces the leading end of the signature 4, so that the signature 4 moves straight and the first transport belt The paper is fed and transported between the seventh transport belt 7 and the fourth transport belt 21. Upon reaching the end point P ₁ across the trailing edge of the diverter 6b as shown in FIG. 2 (c), signature 4 is caught up diverter
There is a risk of collision with the rear end portion of 6b, a variable over there conveyer passage of filtrate 24 is provided signature 4 in this apparatus, on the cross end point P ₁ orbital trajectory 6c, across the start point P
In the case where it is assumed that the straight conveying direction of the divertor 6b is extended straight, it is bent in a U-shape so as to be positioned in the direction opposite to the rotation direction of the diverter 6b from the crossing end point, so that a collision may occur. Absent. The signature 4 is continuously conveyed and discharged through a first discharge path.

Thereafter, the above operation is repeated, so that the signatures 4 are alternately discharged and stacked on the first paper discharge path side and the second paper discharge path side. In the conveying path of the signature 4 distributed and conveyed in this manner, there is no fixing member as in the related art.
And the transport belts 7, 13, 21, and 23 do not slip, so that the signature 4 is not rubbed. Further, as described with reference to FIG. 2 (c), the diverter 6b evades the signature 4, so that the signature 4 is not damaged.

〔The invention's effect〕

As is apparent from the above description, according to the present invention, in the signature distributing apparatus for a rotary printing press, the signature is formed into a fan shape having an arc portion having substantially the same length as the signature length, and is rotated and driven from the driving side to rotate. A plurality of rotating bodies arranged in parallel in the axial direction of the axis that is the center of the rotating body, and the rotating path formed by the rotation of the rotating body at different positions in the axial direction of the rotating bodies and the rotating body, At a crossing start point and a crossing end point in a straight line, and a paper entrance portion upstream of the crossing start point in the conveyance direction of the signature and a first discharge path entrance downstream of the crossing end point in the conveyance direction of the signature. A plurality of first transport belts stretched through the first transport belt, and a first transport belt stretched in contact with each of the first transport belts, and
A plurality of second conveyor belts which are separated from the conveyor belt and stretched in a tangential direction of the orbit around the second paper discharge path, and stretched in contact with each second conveyor belt after the crossing start point; The plurality of third transport belts, the plurality of fourth transport belts stretched in contact with each first transport belt after the crossing start point, and the crossing end point on the orbit, The first transport belt and the fourth transport belt are positioned such that the linear transport direction at the crossing start point is positioned in a direction opposite to the rotation direction of the rotating body from the crossing end point when it is assumed to be straightened. And a deflection roller that bends in the shape of a circle in the trajectory, so that there is no fixed member in the signature conveyance path as in the past, and the signature and the conveyance belt slip. The signature is rubbed because it does not Not be scratched or Ri, along with the quality of the printed matter can be improved, the amount of waste paper is reduced. Further, the provision of the deflection roller allows the rotating body to cleverly pass the signature, so that the rotating body does not collide with the signature and the quality of the printed matter is improved.

[Brief description of the drawings]

1 and 2 show an embodiment of a signature distributing apparatus for a rotary printing press according to the present invention. FIG.
FIGS. 7A to 7C are schematic configuration diagrams of main parts shown for explaining the operation. 1 ... web, 2 ... cutting cylinder, 3 ... cutting cylinder, 4 ...
Signature, 5 ... Rotating shaft, 6 ... Diverter assembly, 6b
… Diverter, 6c… Outer circumference track, 7… First transport belt, 13… Second transport belt, 21… Fourth transport belt, 23… Third transport belt, 24 P ...... across the starting point, P ₁ ...... across the end point.

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int. Cl. ⁶ , DB name) B65H 29/60 B41F 13/64

Claims (1)

(57) [Claims] 1. A plurality of rotating bodies formed in a fan shape having an arc portion having a length substantially equal to the length of a signature, driven in rotation from a driving side, and arranged in parallel in an axial direction of a shaft serving as a center of rotation; These rotators and the positions of these rotators are changed in the axial direction, and the trajectory formed by the rotation of the rotator is traversed linearly at the traverse start point and the traverse end point from the traverse start point. A plurality of first conveyor belts stretched through a paper input section on the upstream side in the conveying direction of the signature and a first discharge path entrance on the downstream side in the conveying direction of the signature from the crossing end point; A plurality of second belts which are stretched in contact with one conveyor belt and are separated from the first conveyor belt at a starting point of crossing with the loop locus and stretched in a tangential direction of the loop locus toward a second paper discharge path. The transport belt and each second transport after the crossing start point The in and bears against the belt stretching been plural rows 3 conveyor belts and, each of the first and subsequent start point the cross
In the case where it is assumed that a plurality of fourth conveyance belts stretched in contact with the conveyance belt and the crossing end point extends straight on the orbital trajectory, the straight conveyance direction at the crossing start point. A deflecting roller for bending the first transport belt and the fourth transport belt into a V-shape in a trajectory so as to be positioned in a direction opposite to a rotation direction of the rotating body from a crossing end point; A signature distribution device for a rotary printing press.