JP2600118Y2 - Paper guide device for folder of rotary printing press - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a paper guide device for a folding machine of a rotary printing press. The present invention relates to a paper guide device in a folder.

[0002]

2. Description of the Related Art In a folding machine of a rotary printing press, for example, a fed printing paper is folded in two in a width direction (former folding) by a former (triangular plate), and a cutter cylinder (a cutter cylinder and a needle cylinder (or plunge)) is folded. The body is divided into two parts), and it is sent between the mouth cylinder and cut into a predetermined length by the cutter body. Is formed, and further folded in two by a second gripper or chopper folding machine to form a 16-page signature.

[0003] When being folded, the printing paper fed between the cutter cylinder and the gripping cylinder is pierced by a needle projecting from the cutter cylinder at its leading end, and is wound up by the cutter cylinder. Then, after the needle pierces the printing paper, the cutter
When the blade rotates half a second, the piercing blade incorporated in the cutter cylinder pushes the printing paper into the gripping device provided on the gripping cylinder, and when the gripping device grips the printing paper, the needle piercing the leading end of the printing paper. Retracts into the cutter cylinder to release the printing paper. On the other hand, the holding cylinder holding the printing paper winds up the printing paper. Further, when the cutter cylinder rotates by １ ／, the cutter provided on the cutter cylinder cuts the printing paper, and the needle pierces and holds the next starting end of the printing paper.

In such a winding process, when the printing paper is rolled into the cutter cylinder, the printing paper is rolled in close contact with the cutter cylinder, and when the printing paper is rolled into the grip cylinder,
It is quickly peeled off from the cutter body and gets caught in the mouth body rapidly. Therefore, when the printing paper is peeled off from the cutter cylinder, a vacuum is generated between the printing paper and the cutter cylinder, and a high-speed airflow is generated toward the vacuum area. Also, when the paper is caught in the gripping cylinder, the air flowing between the portion of the printing paper caught in the cutter cylinder and the part supplied after the gripped part is discharged,
A high-speed airflow is generated, and the free end of the signature flaps, causing the signature to break, a piece of paper, or the like.

[0005] In order to eliminate such disadvantages, for example, a paper guide device disclosed in Japanese Patent Application Laid-Open No. 4-148881 has been proposed. This paper guide device is located between the cutter cylinder (or needle cylinder) and the jaw cylinder,
A brush having a predetermined length and implanted with resilient bristles is arranged, and the brush regulates the path on the starting end side of the printing paper wound around the cutter cylinder and flutters. To prevent the signature from breaking the ears and running out of paper.

[0006]

However, in this paper guide apparatus, since the shape and position of the brush are fixed, if the paper quality and thickness of the printing paper change, the signature will break,
If a paper break occurs and the printing speed increases with the same printing paper,
Folding of signatures, breakage of paper, and the like may occur, which hinders high speed operation of the rotary printing press.

In view of the above circumstances, an object of the present invention is to make it possible to adjust the shape and position of a brush in accordance with the quality of printing paper and the operation speed of a rotary printing press, thereby enabling high speed operation of a rotary printing press. An object of the present invention is to provide a paper guide device for a folder of a rotary printing press.

[0008]

Means for Solving the Problems Under a frame of a folding machine, below a cutter cylinder and a gripping cylinder, a support shaft fixed in parallel with each cylinder, and a pair of support shafts fixed to the support shaft at predetermined intervals. A plate, a pair of bearings fixed to be opposed to these plates, a pinion shaft rotatably supported by these bearings, and a pair of pinions fixed at predetermined intervals, and slidable on the bearings And a pair of rack shafts formed with a rack that meshes with the pinion, a rotation driving unit supported by the plate and rotating the pinion shaft, and opposed to one end of the pair of rack shafts. A pair of fixed frame plates, a plurality of brush shafts each fixing a brush of a predetermined length, and a bracket twice as large as the brush shaft are provided, and a plurality of long holes are radially formed in the frame plate. Along with the A plurality of screw holes are formed at predetermined intervals along the elongated hole, the brush shaft is formed to be rotatable in the elongated hole and slidable in the longitudinal direction of the elongated hole, and penetrated through the elongated hole, and to the bracket, a through hole communicating with the screw hole formed in the frame plate, and means for securing said brush axis to form a through hole that mates with the brush shaft is provided, the cutter cylinder and suck cylinder the brush It is configured so that it can be fixed to be freely positioned with respect to

[0009]

According to the function of the printing paper, the pinion shaft is rotated by the rotation driving means in accordance with the quality of the printing paper and the operation speed of the rotary printing press, and the frame plate is moved up and down via the rack shaft. By changing the position of the brush, changing the position of the brush axis corresponding to the long hole of the frame plate, or rotating the brush axis with respect to the bracket, the shape of the brush tip of the whole brush is changed, the signature of the signature is broken, the paper is broken To prevent

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. ◆ 1 is a folding machine frame. A cutter body 2 is rotatably supported by the frame 1. Reference numeral 3 denotes a holding cylinder, which is parallel to the cutter cylinder 2 at a predetermined interval, and has a frame 1.
It is supported rotatably. Reference numeral 4 denotes a fixed guide, which is fixed to the frame 1 in parallel with the holding cylinder 3 at a predetermined interval. Reference numeral 5 denotes a support shaft, which is fixed to the frame 1 in parallel with the cutter cylinder 2 and the grip cylinder 3. Reference numeral 6 denotes a plate which is fixed to the support shaft 5 at predetermined intervals. A bearing 7 is fixed to one end of the plate 6 so as to face each other.
Reference numeral 8 denotes a pinion shaft, which is rotatably supported by the bearing 7. Reference numeral 9 denotes a pinion, which is rotatably fitted to the bearing 7 and is fixed to the pinion shaft 8. Reference numeral 10 denotes a rack shaft, which is slidably supported by the bearing 7 so as to mesh with the pinion 9.

A lever 11 is fixed to one end of the pinion shaft 8. A pin 12 has a female screw formed in a direction perpendicular to the axis, and is rotatably supported at one end of the lever 11. Reference numeral 13 denotes a support pin having a hole formed in a direction perpendicular to the axis, which is rotatably supported by the plate 6.
Reference numeral 14 denotes a screw shaft, one end of which is rotatably supported by the support pin 13, and the screw portion is screwed with the female screw of the pin 12. 1
A handle 5 is fixed to one end of the screw shaft 14.
Then, by turning the handle 15 and rotating the screw shaft 14, the lever 11 is swung through the pin 12,
The rotation driving means for rotating the pinion shaft 8 is constituted.

As shown in FIG. 3, a frame plate 16 has a plurality of elongated holes 17 formed radially and a plurality of screw holes 18 formed along each elongated hole 17, and is fixed to one end of the rack shaft 10. ing. Reference numeral 19 denotes a brush shaft, which penetrates the elongated hole 17 so as to slide and rotate. Reference numeral 20 denotes a brush having a required elastic force and formed to a predetermined length.
It is fixed to. As shown in FIG. 3, a bracket 21 has a hole 22 in which the brush shaft 19 is fitted, a groove 23 communicating with the hole 22, and a screw hole 24 formed in one of the through holes crossing the groove 23. , The stepped hole 2 formed in the other
5 and a stepped hole 26 communicating with the screw hole 18 are formed. 27 is a bolt, which penetrates the stepped hole 25,
It is screwed into the screw hole 24. A bolt 28 penetrates the stepped hole 26 and is screwed into the screw hole 18.

With such a configuration, the bolt 27 is loosened, the brush shaft 19 is turned, and the bolt 28 is screwed into the screw hole 18.
By moving the brush shaft 19 in the longitudinal direction of the long hole 17 by pulling out the brush shaft 19, the shape of the guide surface formed by the tip of the brush 20 changes the quality of the printing paper (paper type, thickness, hardness, etc.), Adjust according to the operation speed of the rotary printing press. Bolt 27,
After tightening the bolt 28 to fix the shape of the brush 20, the handle 15 is turned to adjust the gap between the brush 20, the cutter body 2, and the grip body 3.

As described above, by adjusting the shape of the guide surface formed by the tip of the brush 20 and the distance between the guide surface and the cutter cylinder 3 and the gripping cylinder 3, even during high-speed operation of the rotary printing press, folding is possible. This minimizes the fluttering of the shingle and prevents broken ears and paper breaks.

As a rotation driving means for rotating the pinion shaft 8, a worm is used instead of the screw shaft 14,
Instead of the lever 11, a worm wheel that meshes with the worm may be provided, or the pinion shaft 8 may be directly driven to rotate by a motor.

[0016]

As described above, according to the present invention, according to the present invention, a support shaft fixed to the frame of the folding machine below the cutter cylinder and the gripping cylinder in parallel with each cylinder, and a predetermined A pair of plates fixed at intervals, a pair of bearings fixed to face these plates, and a pinion shaft rotatably supported by these bearings and fixing a pair of pinions at predetermined intervals. A rack shaft formed with a rack slidably supported by the bearing and meshing with the pinion; a rotation driving means supported by the plate to rotate the pinion shaft; and one end of the rack shaft opposed to one end of the rack shaft. A plurality of slots formed radially, a pair of frame plates formed with a plurality of screw holes at predetermined intervals along each slot, and the pair of frame plates opposing each other. Rotate the slot and the length of the slot A plurality of brush shafts which slidably penetrate through each other, each of which has a fixed length brush, a through hole which communicates with a screw hole formed in the frame plate, and a through hole which fits the brush shaft. In addition, since a plurality of brackets for fixing the brush shaft to the frame plate are provided, the shape of the guide surface formed by the tip of the brush can be adjusted according to the quality of printing paper and the operating speed of the rotary printing press. It is possible to prevent the signature from breaking and the paper being cut.

[Brief description of the drawings]

FIG. 1 is a side view of a paper guide device in a folder of a rotary printing press according to the present invention.

FIG. 2 is a side view of the paper guide device in the folder of the rotary printing press according to the present invention.

FIG. 3 is an enlarged view showing a brush shaft mounting portion in FIG. 2;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Frame 2 Cutter body 3 Holder body 5 Support shaft 6 Plate 7 Bearing 8 Pinion shaft 9 Pinion 10 Rack shaft 11 Lever 12 Pin 13 Support pin 14 Screw shaft 15 Handle 16 Frame plate 17 Long hole 18 Screw hole 19 Brush shaft 20 Brush 21 bracket 22 through hole 26 through hole

Claims (1)

(57) [Scope of request for utility model registration] 1. A paper guide device for a rotary printing press, comprising: a cutter cylinder for cutting a printing paper into a predetermined length; and a gripping cylinder for gripping and folding the cut printing paper.
A support shaft fixed parallel to each cylinder below the cutter cylinder and the jaw cylinder on the folder frame, a pair of plates fixed to this support shaft at a predetermined interval, and opposing these plates A pair of bearings fixed so as to be rotatably supported by these bearings, a pinion shaft to which a pair of pinions are fixed at predetermined intervals, and slidably supported by the bearings,
A pair of rack shafts formed with a rack that meshes with the pinion, a rotation driving unit supported by the plate and rotating the pinion shaft, and a pair of ones fixed to one end of the pair of rack shafts so as to face each other. A frame plate, a plurality of brush shafts each fixing a brush of a predetermined length, and a bracket twice as large as the brush shaft are provided, and a plurality of long holes are radially formed in the frame plate; A plurality of screw holes are formed at predetermined intervals along the elongated hole, the brush shaft is formed to be rotatable in the elongated hole and slidable in the longitudinal direction of the elongated hole, and penetrated through the elongated hole, and to the bracket, a through hole communicating with the screw hole formed in the frame plate, and means for securing said brush axis to form a through hole that mates with the brush shaft is provided, the cutter cylinder and suck cylinder the brush Positioning against Sheet guide device in a folding machine of a rotary printing machine, characterized in that configured to be freely secured.