JPH09300277A - Cutter device rotary press - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cutter device for a rotary press capable of moving the cutter thereof in line with the travel of a machine cutter without removing a caulking material, in the case of moving the machine cutter within a relatively small range. SOLUTION: This device is formed in such a state as divided into two on a plane including an axial center, and tightened with a plurality of bolts via a drag roller 9 for being fixed thereto. In this case, a radially penetrating screw hole 20a and a slit 20c with a lengthwise direction set peripherally are formed on at least one of split cutters 20. In addition, a plane 9a formed to be faced to the screw hole 20b and an eccentric pin 24 coupled to the slit 20c are provided at the mounting position of the cutter 20 on the drag roller 9.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a receiving blade device corresponding to a sewing blade / slitting blade in a rotary printing press.

[0002]

2. Description of the Related Art FIG. 3 is a plan view showing the structure of a letterpress rotary printing press. FIG. 4 is a front view of FIG. 3. FIG. 5 is a side view seen from the folder side in FIG. As shown in FIG. 3, the letterpress rotary printing machine is composed of a paper feeding machine 1, a printing unit 2 and a folding machine 3.

As shown in FIG. 4, the running paper 4 pulled out from the paper feeder 1 passes under the printing unit 2 and passes through the folding machine 3.
After printing on one side between the plate cylinder 5 and the impression cylinder 6 and passing through the upper part of the printing unit 2 to the side of the paper feeder 1 and printing on the other side between the plate cylinder 7 and the impression cylinder 8, Folding machine 3 through drag roller 9
Be led to.

As shown in FIG. 5, the running paper 4 bisected in the width direction by the drag roller 9 is folded in two in the width direction by the triangular plate 10, and after being overlapped, the folding cylinder group 11 has a required length. The sheet is cut into pieces, folded in the longitudinal direction, formed into a signature having a required number of pages, and discharged from the delivery fan 12 onto the delivery tape 13.

FIG. 6 is an enlarged view of the drag roller 9 in the letterpress rotary printing machine. In the figure, the same components as those in FIGS. 4 and 5 are designated by the same reference numerals. A plurality of levers 15 (three in the figure) are fixed to a shaft 14 arranged in parallel with the drag roller 9 at predetermined intervals, and a slitter blade 17 having a thickness T is attached to the central lever 15 via a pin 16. However, a sewing blade 18 having a thickness T is rotatably supported by the levers 15 on both sides via a pin 16 which is movable in the axial direction so as to correspond to the apex 10 a of the triangular plate 10.

On the other hand, the drag roller 9 is formed with a plurality of grooves (three in the figure) at predetermined intervals. Into this groove, receiving blades 19 and 20 for receiving the slitter blade 17 and the sewing machine blade 18 are fixed. These blades 19, 20
Grooves 19a, 20a having a width W for receiving the slitter blade 17 and the sewing machine blade 18 are formed in the groove.

FIG. 7 is a sectional view showing the mounting structure of the receiving blade 20. In the figure, the same parts as those in FIG. 6 are designated by the same reference numerals. Reference numeral 21 denotes a bolt, which joins the two receiving blades 20 and is fixed to the drag roller 9.
Reference numeral 22 denotes a caulking material, which is filled in the countersunk hole into which the bolt 21 is inserted after the bolt 21 is tightened so as to prevent injury due to contact with the edge of the countersink when the paper is threaded. .

With such a construction, the running paper sent from the printing unit is divided into two parts in the width direction by the slitter blade 17 and the receiving blade 19, and the sewing machine blade 18 and the receiving blade 2 are used.
A perforated line 20 is placed at the center of each running paper divided into
b is formed. At this time, by setting the position of the sewing machine blade 18 so as to correspond to the apex 10a of the triangular plate 10, the traveling paper can be accurately folded in two by the triangular plate 10.

The width W of the groove 20a of the receiving blade 20 is set to the thickness T + 5 of the sewing blade 18 in consideration of the sharpness of the sewing blade 18.
mm. Therefore, the sewing blade 18
The adjustment allowance for the position of is 5 mm. With this adjustment allowance, the permissible range of the paper width that can be used for the above work is 20 mm.

Further, in order to maintain the sharpness of the sewing machine blade 18, it is desirable to arrange the receiving blade 20 so as to be in contact with the sewing machine blade 18. For this purpose, it is necessary to move the receiving blade 20 each time the sewing machine blade 18 is moved.

[0011]

There are various widths of paper printed by a letterpress rotary printing machine, and often exceeds the allowable range of 20 mm. When the paper width exceeds the permissible range, or when the sewing machine blade 18 and the receiving blade 20 are placed in contact with each other, the caulking material 22 shown in FIG. 7 is removed, the bolt 21 is loosened, and the position of the receiving blade 20 is adjusted. After tightening the bolt 21, the counterboring material 22 must be refilled in the counterbore.

[0012] This work is not only dangerous, but also requires labor and time, which reduces the productivity of the printing work.

In view of the above circumstances, an object of the present invention is to allow the receiving blade to be moved in accordance with the movement of the sewing machine blade without removing the caulking material when moving the sewing machine blade in a relatively small range. It is to provide a receiving blade device in a rotary printing press.

[0014]

In order to achieve the above object, according to the present invention, at least one of the two divided receiving blades corresponding to the sewing machine blade / slitting blade has a screw hole penetrating radially. A long hole is formed in which the longitudinal direction is set in the circumferential direction, a set screw that is screwed into the screw hole is provided, and at the receiving blade mounting position of the drag roller, a flat surface formed to face the screw hole, An eccentric pin that fits into the elongated hole is provided, the set screw is loosened, and the eccentric pin is rotated to adjust the position of the receiving blade.

[0015]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a sectional view of a receiving blade according to the present invention, and FIG. 2 is a side view of FIG. In FIG.
Is a drag roller, and has a flat surface 9a on which a set screw described later abuts and a flat surface 9b for providing an eccentric pin. Reference numeral 24 denotes an eccentric pin, which is rotatably supported by the drag roller 9 and is prevented from coming off by a screw 25.

Reference numeral 20 denotes a receiving blade, which is formed with a groove 20a having a width W and is integrally fixed by a bolt 21 so as to surround the drag roller 9. A countersinking hole into which the bolt 21 is inserted is filled with caulking material 22. . At this time, the receiving blade 20 is in a clearance fit state that is movable in the axial direction with respect to the drag roller 9.

The receiving blade 20 has a screw hole 20b perpendicular to the flat surface 9a and a receiving hole 20 perpendicular to the flat surface 9b.
An elongated hole 20c is formed in the outer peripheral direction of the. A set screw 23 is screwed into the screw hole 20b. The eccentric pin 24 is rotatably fitted in the elongated hole 20c.

With such a structure, the set screw 23
By loosening and rotating the eccentric pin 24, the receiving blade 20 can be moved in the axial direction. Further, the receiving blade 20 can be fixed to the drag roller 9 by tightening the set screw 23. Therefore, the receiving blade 20 can be moved without removing the caulking material 22.

That is, in the range of not more than twice the eccentricity S of the eccentric pin 24, simply loosening the set screw 23
Since the receiving blade 20 can be moved in the axial direction, the position of the receiving blade 20 can be easily adjusted with respect to the position of the sewing blade, and the workability of the printing operation can be improved.

[0020]

As described above, according to the present invention, 2
A screw hole penetrating in a radial direction and an elongated hole whose longitudinal direction is set in the circumferential direction are formed on at least one of the divided receiving blades, and the receiving blade mounting position of the drag roller faces the screw hole. Since the flat surface formed as described above and the eccentric pin that fits into the elongated hole are provided, the position adjustment of the receiving blade 20 with respect to the position adjustment of the sewing blade becomes easy, and the workability of printing work can be improved. Further, since the receiving blade can be brought into contact with the sewing machine blade, the sharpness of the sewing blade can be kept good for a long period of time.

[Brief description of drawings]

1 is a cross-sectional view of a receiving blade according to the present invention.

FIG. 2 is a side view of FIG. 1;

FIG. 3 is a plan view showing the configuration of a letterpress rotary printing machine.

FIG. 4 is a front view of FIG. 3;

FIG. 5 is a side view seen from the folder side in FIG.

FIG. 6 is an enlarged view of a drag roller in a letterpress rotary printing machine.

FIG. 7 is a cross-sectional view showing a mounting structure of a receiving blade.

[Explanation of symbols]

 9 Drag roller 9a Flat surface 20 Receiving blade 20b Screw hole 20c Long hole 21 Bolt 24 Eccentric pin

Claims (1)

[Claims] 1. A receiving blade device in a rotary printing press, which is divided into two parts on a plane including an axis and is fixed to the drag roller by sandwiching the drag roller and tightening it with a plurality of bolts. In, a screw hole penetrating in the radial direction, and a long hole in which the longitudinal direction is set in the circumferential direction is formed, at the receiving blade mounting position of the drag roller, a flat surface formed so as to face the screw hole, A receiving blade device in a rotary printing press, comprising: an eccentric pin that fits into the elongated hole.