JPH02295742A - Rotary press - Google Patents

Abstract

PURPOSE:To improve productivity by arranging a plurality of print lines and making a paper feeder, an in-feed device, an out-feed device and a winder movable thereby eliminating wasteful waiting time of worker. CONSTITUTION:A paper feeder 1, an in-feed device 2, an out-feed device 4 and a winder 5 are moved toward a first print line comprising print units 3a-3d, while a clutch 14 is connected and a damper 16 is opened. At this time, a clutch 15 is disconnected and a damper 17 is closed. Then printing is carried out by means of the first print line. When printing is carried out through the first line, print units 3a'-3d' are prepared. Upon finish of printing through the first line, the clutch 14 is disconnected and the damper 16 is closed. Then the paper feeder 1, the in-feed device 2, the out-feed device 4 and the winder 5 are moved toward a second print line comprising the print units 3a'-3d', while the clutch 15 is connected and the damper 17 ia opened. Thereafter, printing is carried out through the second print line.

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a rotary printing device.

[Conventional technology]

A conventional rotary printing press has an arrangement as shown in FIG.

In the figure, reference numeral 1 denotes an infeed device 12 that supplies printing paper and takes out printing paper from the paper feeding device 1. 3&～
3d is a printing unit equipped with a plate cylinder 9 and an ink pan 10, each of which has a drying hood 8 connected to a heat exchanger 7.
is attached.

4 is an outfeed device that pulls out printing paper from the printing unit 3d. Reference numeral 5 denotes a winding device that winds up the printing paper sent out from the outfeed device 4. Reference numeral 18 denotes a prime mover that synchronously drives each of the printing units 3a to 3d via the horizontal shaft 11. 6
is printed paper.

With such a configuration, the printing paper 6 pulled out from the paper feeder 1
After passing through a predetermined path of the infeed device 2, printing units 31 to 3d, and outfeed device 4, the leading end is wound around the winding device f5. Then, hot air is sent from the heat exchanger 7 to the drying hood 8, and the prime mover 18 is operated to perform printing.

In such a rotary printing device, when changing the design of printed matter, the rotary printing device is stopped, the plate cylinder is replaced, and the ink tank 10 and its surroundings are collected, cleaned, and ink is added. additional work will be required.

This setup work takes, for example, about two hours for three workers.

[Problem to be solved by the invention]

When using such a rotary printing device to efficiently print a small amount of printed material that takes about 1 to 2 hours to print, it is necessary to have a worker on standby for setup.
It has become unproductive.

In view of the above circumstances, an object of the present invention is to provide a rotary printing device with high productivity.

[Failure to solve the problem]

In order to achieve the above object, in the present invention, at least two series of printing lines are provided in parallel, and a paper cutting machine, an infeed device, an outfeed device, and a stacking device are placed at positions facing each of the printing lines. Arranged to be movable.

[For production]

By performing setup work for another printing line while printing on one printing line, wasteful waiting time can be eliminated and productivity can be improved.

〔Example〕

Hereinafter, one embodiment of the present invention will be described based on FIG. 1.

In the figure, reference numeral 1 denotes a paper feeding device that supplies printing paper, and is arranged so as to be movable in the direction of arrow e. 2 is the paper feeder T1t
This is an infeed device that pulls out printing paper from 1, and is arranged so as to be movable in the direction of arrow f.

3a to 3d A printing unit equipped with a Vi plate cylinder 9 and an ink pan 10, with drying hoods 81L to 8d connected to heat exchangers 7a to 7d via dampers 16, respectively.
is attached to form the first printing line. 3a'
~3d' is a companion printing unit equipped with a plate cylinder 9 and an ink cylinder 10, and a damper 1 is connected to heat exchangers 7a~7d, respectively.
A drying hood sal~3d' connected through 7 is attached, forming a 1J42 printing line. Reference numeral 4 denotes an outfeed device for drawing out printing paper from the printing units 3d, (3d'), and is arranged so as to be movable in the direction of arrow g.

5 is a winding device that winds up the printing paper sent out from the outfeed device 4, and is arranged so as to be movable in the direction of the arrow h.
(13), each of the printing units 3a to 3d (3
a' to 3d') are driven synchronously. 6 is printing paper.

In such a configuration, as shown by the solid line in FIG.
The paper feeder 1, the infeed device 2, the outfeed device 4, and the take-up device 5 are moved to the first printing line side consisting of the printing units 3a to 3d, the clutch 14 is connected, and the damper 16 is moved. open. At this time,
Clutch 15 is disengaged and damper 17 is closed. Then, printing is performed using the first printing line.

While printing is being performed on the first printing line, setup of the printing units 3a9 to 3dt is performed.

Then, when printing on the first printing line is finished, the clutch 14 is disengaged and the damper 16 is closed.

Next, as shown by the dashed line in FIG. 1, the paper feeder 1 and
The infeed device 2, outfeed device 4, and winding device 5 are moved to the second printing line side consisting of printing units 3aI to 3d', the clutch 15 is connected, and the damper 17 is opened. . Then, printing is performed using the second printing line.

While the second printing line is printing, the printing units 3&-3d are set up.

In this way, by alternately using the two printing lines to perform printing, it is possible to eliminate unnecessary waiting time for setup workers and improve productivity.

〔Effect of the invention〕

As described above, according to the present invention, a plurality of printing lines are provided, and the paper feeder, infeed device, outboard feed device, and winding device are movably arranged to positions facing each printing line. It is possible to eliminate unnecessary waiting time for workers and improve productivity.

[Brief explanation of drawings]

FIG. 1 is a diagram showing the configuration of a rotary printing apparatus according to the present invention, (A) is a plan view, (B) is a front view, and FIG. 2 is a diagram showing the configuration of a conventional rotary printing apparatus. A) is a plan view, (B
) is a front view. 1...Paper feeder, 2...Infeed device, 3a
"-3d + 3a-~3d'...printing unit,
4... Outfeed device, 5... Winding device.

Claims (1)

[Claims] 1. A paper feeder that supplies printing paper, an infeed device that draws out the printing paper from the paper feeder, a printing line that is composed of a plurality of printing units, and an outfeed device that draws out the printing paper from the printing line; In a rotary printing device comprising a winding device for winding printed paper sent out from the outfeed device, at least two lines of printing lines are provided in parallel, the paper feeder, the infeed device, the outfeed device, and the winding device. A rotary printing apparatus, characterized in that: is movably arranged to a position facing each of the printing lines.