JP3017959B2 - Plate making equipment for newspaper printing - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a so-called CTP (Computer To Plain) in which a drawing image signal from a computer is directly drawn on a plate material using a laser.
The present invention relates to an improvement of a newspaper printing plate making apparatus of the te) type.

[0002]

2. Description of the Related Art Conventionally, as this kind of plate making apparatus for newspaper printing, for example, one described in Japanese Patent Application Laid-Open No. 9-66595 is known. This basically consists of a plate feeder (plate feeding unit) that supplies the plate material, an exposure device (charging / drawing unit) that exposes the plate material from the plate feeder, and a plate material from the exposure device. It comprises a development processing device (developing / fixing section, elution section, post-processing section) for developing processing.

[0003]

However, such a plate is a standard-width plate material (a plate material for one newspaper page or a plate material for two pages of a newspaper in which the two are vertically connected) and doubled. Although it is described that it is possible to handle a plate material of a width (a plate material of two newspapers connecting two newspapers horizontally and a plate material of four newspapers connecting two vertically), The specific configuration was not clear, and it was unclear whether these could be properly and efficiently made. SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and has been made in order to solve the problem. The object of the present invention is to make a standard width plate material and a double width plate material properly and efficiently. It is an object of the present invention to provide a newspaper printing plate making apparatus which is made possible.

[0004]

SUMMARY OF THE INVENTION A printing plate making apparatus according to the present invention basically comprises a plate supply apparatus for supplying a plate material, an exposure apparatus for exposing the plate material from the plate supply apparatus, and an exposure apparatus. A developing device for developing the plate material from the plate feeding device, and a guide device capable of guiding two standard width plate materials or one double width plate material transferred from the plate feeding device to the developing device through the exposure device. The feature is that it is composed of

[0005] The plate material supplied from the plate supply device is exposed by an exposure device and then developed by a developing device. At this time, the two standard width plate materials or one double width plate material conveyed from the plate feeding device to the development processing device via the exposure device are guided by the guide device, so that they are supplied appropriately and efficiently. Plate, exposure and development processing are performed.

It is preferable that the plate feeding device is provided with a slip sheet discharging device for discharging the slip sheet to the side. The exposure apparatus preferably includes an exposure cylinder on which the plate material is spirally wound, and an exposure device for exposing the plate material wound on the exposure cylinder. It is preferable to provide a punching device for forming a hole at a position preceding the exposure device. The guide device includes a liftable separation plate that can be located between two standard-width printing plates and can take a separation position that separates them and a retracted position that does not interfere with one double-width printing plate; A guide plate for guiding one end of a double-width printing plate, and two standard-width printing plates can be pushed toward the separation plate, and one of them can push one double-width printing plate toward the guide plate. It is preferable to use left and right pushers that can be used.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a plan view showing the outline of a newspaper printing plate making apparatus according to the present invention. FIG. 2 is a side view of FIG. 1. FIG. 3 is an explanatory diagram for explaining a process of making a plate material having two standard widths. FIG. 4 is an explanatory diagram for explaining the process of making one double-width plate material.

The plate making apparatus 1 for newspaper printing includes a plate feeding apparatus 2, a slip sheet discharging apparatus 3, a punching apparatus 4, a conveying apparatus 5, an exposure apparatus 6,
The main parts of the plate discharging device 7, the developing device 8, the direction changing device 9, the folding device 10, the plate storage device 11, and the guide device 12 are constituted.

The plate supply device 2 supplies a plate material A,
In this example, the dark room 13 where the packed plate material A is unpacked is opened.
And the plate material A which has been unpacked and the interleaving paper B is interposed therebetween.
Are stacked and placed on the table 14, and a suction transfer device 15 that suctions the plate material A placed on the table 14 one by one from above and transfers the plate material A forward (to the right in FIG. 1). ing.

In this example, the plate material A is a photosensitive printing plate in which a photosensitive material such as a photocurable resin is applied to an aluminum substrate in advance,
It is a so-called PS plate, and has two standard-width plate materials (a plate material for two newspapers in which two newspapers are vertically connected) A1 or a double-width plate material (a newspaper in which four newspapers are vertically and horizontally connected). Plate material for 4 pages) A2
It is.

The slip sheet discharge device 3 is provided in the plate feeding device 2 and discharges the slip sheet B to the side. In this example, the slip sheet discharge device 3 is provided between the plate materials A placed on the table 14 of the plate feeding device 2. Adsorbs the interleaving paper B interposed in the left and right direction (vertical direction in FIG. 1)
And a left and right discharge roller 17 for discharging the interleaf paper B transferred by the suction and transfer device 16 for transferring the paper. The suction transfer device 16 is a suction transfer device 1 of the plate feeding device 2.
5 is operated so as not to interfere.

The punching device 4 is provided at a position before the exposure device 6 and forms a hole C in the plate material A from the plate supply device 2. In this example, the punching device 4 is provided between the plate supply device 2 and the exposure device 6. A table 18 for placing the plate material A continuously on the table 14 of the plate feeding device 2, and a hole C on the front side of the plate material A;
Press.

The transport device 5 transports the plate material A from the punching device 4 to the exposure device 6, and in this example, the transport device 5
Table 19 continuous with the table 18 of the
20 that is provided so as to be able to move back and forth through the table 18 of FIG.
And consists of The transfer body 20 is operated by an actuator (not shown) such as an air cylinder.

The exposure device 6 exposes the plate material A from the plate feeding device 2. In this example, the plate material A from the perforation device 5 is exposed.
Is provided with an exposure cylinder 21 wound spirally, and an exposure device (laser light scanning head) 22 for exposing the plate material A wound thereon. The exposure cylinder 21 is inclined at a predetermined angle θ (0.17 °) with respect to the plate material A conveyed in one direction so that the plate material A is spirally wound (FIG. 1 is exaggerated). Are rotated by a rotation mechanism (servo motor) 23, and a pin 2 for positioning the hole C of the plate material A by fitting it.
4, a vacuum suction device (not shown) for holding the rear end of the plate material A, and a part for making the plate material A wound or unwound so as to have a small diameter so as not to interfere with the pins 24. And a winding roller 25. The exposure unit 22 directly exposes the plate material A with a drawing corresponding to a drawing image signal from a computer, and can move the plate material A in parallel with the axis of the exposure cylinder 21 by a moving mechanism 26. ing.

The plate discharging device 7 sends the plate material A from the exposing device 6 to the developing device 8.
And a plate discharging roller 28 for transporting the plate material A carried thereon forward. The table 27 is lower than the table 19 of the transport device 4 so that the plate material A from the exposure device 6 can be accurately sent to the developing device 8.

The developing device 8 develops the exposed plate material A. Although not shown in this example, the developing device 8 removes portions other than the portions hardened by exposure with a developing solution. And a gum portion for applying a gum solution to the removed portion and drying it.

The direction changing device 9 changes the direction of the plate material A from the developing device 8 at a right angle. In this example, the direction changing device 9 includes a table 29 for carrying the plate material A from the developing device 8 and a rightward direction. (The downward direction in FIG. 1).

The bending device 10 forms a printing plate by forming a bent portion D on the plate material A from the direction changing device 9. In this example, the bending device 10 is mounted on a rotary press (not shown). The press machine forms a substantially V-shaped bent portion D before and after the plate material A.

The printing plate storage device 11 stores the printing plates from the folding device 10 sequentially in a predetermined state.

The guide device 12 is capable of guiding two standard width plate materials A1 or one double width plate material A2 conveyed from the plate feeding device 2 to the development processing device 8 via the exposure device 6.
In this example, the liftable separation plate 30 is located between two standard width plate materials A1 and can be set to a separation position for separating them and a retreat position that does not interfere with one double width plate material A2.
And a guide plate 31 for guiding one side of one double-width plate material A2.
And left and right pushing members 32 which can push two standard width plate materials A1 to the separation plate 30 side and one of them can push one double width plate material A2 to the guide plate 31 side. It is composed of The separation plate 30 includes a table 14 of the plate feeding device 2, a table 18 of the punching device 4, a table 19 of the transporting device 5, a table 27 of the plate discharging device 7, and a table 29 of the direction changing device 9.
And is provided so as to be able to ascend and descend through the center of each of them, and is moved up and down from a separation position where the protrusion is upward to a buried evacuation position by an actuator (not shown) such as an air cylinder. The guide plate 31 includes a table 14 of the plate feeding device 2, a table 18 of the punching device 4, a table 19 of the transport device 5,
It is fixed to each right side of the table 27 of the plate discharging device 7.
The pusher 32 is connected to the table 18 of the punching device 4 and the transport device 5.
The table 19 and the table 27 of the plate discharging device 7 are provided so as to be able to move in the left and right directions through the left and right sides thereof, and are operated by an actuator (not shown) such as an air cylinder. The pushing body 32 is provided so as not to interfere with the guide plate 31.

The plate feeding device 2, slip sheet discharge device 3, punching device 4, transport device 5, exposure device 6, and plate discharging device 7 are covered by a light-shielding cover 33 that can be opened and closed except for the dark room 13 of the plate feeding device 2. Have been done.

Next, the operation will be described based on such a configuration. The packed plate material A is carried to the dark room 13 of the plate feeding device 2 and is unpacked. The plurality of unpacked plate materials A are inserted from the dark room 13 with the interleaving paper B interposed therebetween, and are stacked and placed on the table 14 of the plate feeding device 2. The plate material A placed on the table 14 of the plate feeding device 2 is suctioned one by one from above by a suction transfer device 15 and supplied to the perforation device 4. And the interleaf paper B interposed between the plate materials A
Is sucked by the suction transfer device 16 of the slip sheet discharge device 3, transferred to the left and right sides, and discharged by the discharge roller 17. The plate material A supplied to the punching device 4 is placed on the table 18 and a hole C is formed on the front side. The plate material A in which the holes C are formed is pushed at the rear end by the carrier 20 of the carrier device 5, moves on the tables 18 and 19, and is carried to the exposure device 6.

The plate material A conveyed to the exposure device 6 is aligned by fitting the holes C into the pins 24 of the exposure cylinder 21, and is rotated by the rotation of the exposure cylinder 21 and the winding roller 25 in the winding direction. Then, the rear end is held by the vacuum suction device. At this time, since the exposure cylinder 21 is inclined by a predetermined angle θ with respect to the plate material A conveyed in one direction, the plate material A is
Wound in a spiral. Thus, the exposure cylinder 21 is rotated in a predetermined direction by the rotation mechanism 23, and the exposure unit 22 is moved in a predetermined direction by the movement mechanism 26. A drawing image signal (digital signal) is sent from the printing plate forming computer to the exposure device 22 via a drawing controller (not shown), and laser beam scanning corresponding to the drawing image signal is performed on the plate surface of the plate material A. It is exposed depending on what is done.

The exposed plate material A is released from the exposure cylinder 21 by the rotation of the exposure cylinder 21 and the winding roller 25 in the rewinding direction, while the holding of the rear end by the vacuum suction device is released. It is discharged from the exposure device 6. The plate material A discharged from the exposure device 6 is carried on the table 27 of the plate discharge device 7 and sent to the developing processing device 8 by a plate discharge roller 28. The plate material A sent to the developing device 8 is exposed to light by the exposure device 6 and the portion other than the cured portion is removed by a developing solution to form a printing plate surface. The printing plate is protected.

The plate material A from the developing device 8 is sent to the table 29 of the direction changing device 9, where it is turned 90 ° and carried out to the right. The plate material A from the direction changing device 9 is sent to a bending device 10 and both front and rear sides thereof are bent downward in a substantially V shape to form a bent portion D to form a printing plate. The printing plate from the folding device 10 is sent to the printing plate storage device 11 and stored therein in a predetermined state.

In case of making a plate material A1 of two standard widths, the separating plate 30 of the guide device 12 is raised to the separating position. The table 14 of the plate feeding device 2 has the same number of plate materials A of the same standard width on the left and right sides of the separation plate 30 so as to abut the separation plate 30.
1 are stacked and placed. Table 14 of plate feeding device 2
Are supplied to the perforating device 4 one by one simultaneously by the suction transfer device 15 of the plate feeding device 2 and are interposed between the standard width plate materials A1. The interleaf paper B1 having the left and right standard widths is discharged right and left by the left and right suction transfer devices 16 and the discharge rollers 17 of the interleaf paper discharge device 3. When the left and right standard width plate material A1 is sent to the punching device 4, the exposing device 6, and the developing device 8, the left and right standard widths depend on the left and right pushers 32 of the guide device 12 being operated inward. Plate material A1 is brought into contact with the separation plate 30 and is sent along the separation plate 30. The separation plate 30 of the guide device 12 provided in the direction changing device 9 is set to the retracted position when the left and right standard width plate materials A1 are sent to the folding device 10, and the left standard width plate material A1 is moved to the retracted position. It is sent so that the separation plate 30 of the guide device 12 does not interfere.

When making a double-width plate material A2,
The separation plate 30 of the guide device 12 is lowered to the retracted position. The guide plate 3 is provided on the table 14 of the plate feeding device 2.
A double-width plate material A2 is stacked and placed on the left side of 1 to match this. The double-width plate material A2 placed on the table 14 of the plate feeding device 2 is supplied to the punching device 4 by the suction transfer device 15 of the plate supply device 2 and is interposed between the double-width plate materials A2. The double-width interleaf B2 is discharged in the same direction by operating only one of the suction transfer device 16 and the discharge roller 17 of the interleaf discharge device 3. When one double-width plate material A2 is sent to the punching device 4, the exposure device 6, and the development processing device 8, one double-width plate material A2 is driven by the left pusher 32 of the guide device 12 being operated to the right. Plate material A2 is brought into contact with the guide plate 31 and is sent along the guide plate 31. Separation plate 3 of guide device 12
Since 0 is in the retracted position, this does not interfere.

In the above example, the exposure device 6 is the exposure device 2
Although two is one, it is not limited to this, and for example, two or more may be used. If the number is plural, the exposure time can be shortened. In the previous example, the separation plate 30 of the guide device 12 was in the separation position when ascending and was in the retracted position when descending, but is not limited to this. For example, when ascending away from the table, it contacts the table in the retracted position. The descending time may be the separation position. Although the guide plate 31 of the guide device 12 is fixed to the table in the above example, the present invention is not limited to this. For example, when the double-width plate material A2 is provided by being provided on one of the pushers 32, the plate is set to a stationary state. Alternatively, the double-width plate material A2 may be guided. In the previous example, the plate material A1 having the standard width has a size of two newspapers in which two newspapers are vertically connected. However, the present invention is not limited to this. It may be something. In the above example, the double-width plate material A2 has a size of four newspaper pages, but is not limited thereto. It may be of a size.

[0029]

As described above, according to the present invention,
The following excellent effects can be obtained. (1) A plate supply device, an exposure device, a development processing device, and a guide device. In particular, two standard width plate materials or one double width plate material transported from the plate supply device to the development processing device via the exposure device. Since the guide device capable of guiding the plate material is provided, the standard width plate material and the double width plate material can be properly and efficiently made. (2) If the plate feeding device is equipped with a slip sheet discharge device that discharges the slip sheet to the side, the slip sheet can be mechanically discharged without depending on the worker, so that the work efficiency is improved. Can be. (3) When the exposure apparatus includes an exposure cylinder on which the plate material is wound in a spiral shape and an exposure device for exposing the plate material wound on the exposure cylinder, the plate material can be exposed in a spiral shape. Exposure work can be performed efficiently. (4) When a perforation device for forming a hole is provided at a position preceding the exposure device, holes can be formed in the plate material before exposure, and a plurality of (four) plate materials are used for color printing or the like. Can be easily adjusted. (5) a vertically movable separating plate which is located between two standard-width printing plates and can take a separating position for separating them and a retracting position which does not interfere with one double-width printing plate; A guide plate for guiding one side of a double-width printing plate, and two standard-width printing plates which can be pushed to the separating plate side, and one of them can guide one double-width printing plate. When it is composed of a pusher that can be pushed to the side, two standard width plates or one double-width plate can be guided accurately, and one pusher can also be used as a structure. Can be simplified and the cost can be reduced.

[Brief description of the drawings]

FIG. 1 is a plan view showing an outline of a newspaper printing plate making apparatus according to the present invention.

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

FIG. 3 is an explanatory diagram illustrating a process of making a plate of two standard widths.

FIG. 4 is an explanatory view illustrating a process of making a double-width plate material.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Plate making apparatus for newspaper printing, 2 ... Plate feeding apparatus, 3 ... Interleaf paper discharging apparatus, 4 ... Perforating apparatus, 5 ... Transport apparatus, 6 ... Exposure apparatus, 7
... plate discharging device, 8 ... developing device, 9 ... direction changing device, 1
0: bending device, 11: printing plate storage device, 12: guide device,
13 dark room, 14, 18, 19, 27, 29 table, 15, 16 suction transfer device, 17 discharge roller, 20
... Conveyor, 21 ... Exposure cylinder, 22 ... Exposure device, 23 ... Rotating mechanism, 24 ... Pin, 25 ... Winding roller, 26 ... Movement mechanism,
28: plate discharging roller, 30: separating plate, 31: guide plate, 32
... Pushing body, 33 ... Light-shielding cover, A: Plate material, A1: Standard width plate material, A2: Double width plate material, B: Interleaf paper, B1: Standard width interleaf paper, B2 ... Double width interleaf paper , C: hole, D: bent portion, θ: predetermined angle.

Claims (4)

(57) [Claims] 1. A plate feeding device for supplying a plate material, an exposure device for exposing the plate material from the plate feeding device, a developing device for developing the plate material from the exposure device, and an exposure device for the plate feeding device And a guide device capable of guiding two standard-width plate materials or one double-width plate material conveyed to the development processing device through the exposure device.
A light cylinder and an exposure unit that exposes the plate material wound around the exposure cylinder
A plate-making apparatus for newspaper printing, comprising: 2. The plate making apparatus for newspaper printing according to claim 1, wherein the plate feeding device includes a slip sheet discharging device for discharging the slip sheet to the side. 3. The plate making apparatus for newspaper printing according to claim 1, wherein a perforation device for forming a hole is provided at a position preceding the exposure device. 4. A guide device which is capable of taking a separation position which is located between two standard width plates and separates them, and a retractable position which does not interfere with one double width plate. Plate, a guide plate for guiding one side of one double-width plate, and two standard-width plates can be pushed to the separation plate side, and one of them can hold one double-width plate. 2. The plate making apparatus for newspaper printing according to claim 1, wherein the plate making apparatus comprises left and right pushing members which can be pushed toward the guide plate.