JPH07101301B2 - Punching device for multi-sided plate making camera - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is used in the field of printing, and it is possible to form punching holes for positioning in general photosensitive materials and photosensitive materials such as direct printing plates in a plate making camera. The present invention relates to a punching device for a multi-sided plate-making camera.

[0002]

2. Description of the Related Art In the case of a conventional multi-sided plate making camera, a positioning hole or notch (hereinafter referred to as a "punch hole") having a shape suitable for a printing machine is formed in a photosensitive material in advance,
The punched holes are used as a reference for setting in a plate-making camera to capture an image. When the photosensitive material is a direct printing plate, the photosensitive material is developed to complete it as a printing plate, and when it is not a direct printing plate, page setting, plate collection, photographing, etc., based on the punch holes. And P
The S plate is baked in close contact with a printer to complete as a printing plate,
After that, when this is set in the printing machine, it is also set in the printing machine based on the punch holes. By doing so, it is possible to obtain a printed matter with good finishing accuracy without causing color misregistration or misregistration not only in one-color printing but also in multicolor printing.

By the way, in recent years, a plate-making camera capable of sequentially photographing originals for many pages on one plate is becoming widespread. Japanese Patent Application No. 6 for application by the applicant, etc.
The invention described in the specification and the drawings of 3-122543 is an example thereof. The plate-making camera described in the specification and drawings attached to the above-mentioned application forms a punch hole in the plate in the plate-making camera based on the position of a captured image. The punch holes formed in this plate-making camera are
Since it is not necessarily formed in the shape and position suitable for the printing machine used in the printing process, it is not always possible to set the printing plate directly on the printing machine using the punch holes.

Therefore, the applicant of the present invention has a pin to be fitted into a punch hole of a printing plate formed in a plate making camera on the basis of a photographed image position, and a punching device with the pin fitted in the punch hole of the printing plate. A reference end face for pressing against the reference surface to regulate the insertion position into the punching device and a positioning means provided in the punching device are fitted to regulate the position in the direction perpendicular to the inserting direction with respect to the punching device. A patent application was previously filed for a punching jig having a positioning means. Japanese Patent Application No. 63-284344
That is the invention of the issue.

If the punching jig according to the above-mentioned application is used, a punch having a shape suitable for a printing machine is formed based on the punch holes formed on the basis of the image positions photographed in the plate making camera or to be photographed. There is an advantage that the holes can be formed easily and accurately.

[0006]

However, if a punch hole having a shape suitable for a printing machine can be punched at a predetermined position of a photosensitive material in a multi-sided plate making camera, a punching jig according to the above application is prepared separately. You do n’t have to
This is convenient because the work process is also simplified.

The present invention has been made in view of the above point, and a punching hole having a shape suitable for a printing machine can be punched at a predetermined position of a photosensitive material in a multi-sided plate-making camera. An object of the present invention is to provide a punching device for a multi-sided plate-making camera that does not require special preparation of tools.

[0008]

According to the present invention, there is provided a moving device for supporting a suction device for sucking a photosensitive material so as to be movable in directions perpendicular to each other in a plane parallel to the photosensitive material suction surface. In a multi-sided plate making camera adapted to capture a large number of original images on a photosensitive material adsorbed on a sheet, a plurality of types of punching devices for punching holes having different shapes are provided. The at least one side edge portion sticks out and adsorbs it, and the moving device makes one side edge portion of the photosensitive material protruding from the suction device enter the punching device and determines the relative positional relationship between each punching device and the photosensitive material. Each punching device is selectively driven according to the shape of a punch hole to be formed in the photosensitive material.

[0009]

The photosensitive material is made to stick to one side edge portion of the photosensitive material and is attracted to the suction device. In this state, the moving device moves the suction device so that the one side edge portion of the photosensitive material enters the punching device. Next, the suction device is moved in a direction orthogonal to each other by a moving device to determine the relative positional relationship between a specific punching device capable of forming punch holes having a desired shape and the photosensitive material, and the specific punching device. Is selectively driven to punch a punched hole having a desired shape at a predetermined position of the photosensitive material.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a punching device in a multiple-sided plate-making camera according to the present invention will be described below with reference to the drawings. In FIG. 1, reference numeral 1 indicates a photosensitive material, and a direct printing plate is used here. The photosensitive material 1 is adapted to be adsorbed by the adsorbing device 3. The adsorption device 3 includes an adsorption device body 30 and
The suction plate 2 is attached to the front surface of the suction device body 30. A plurality of suction grooves 31 connected to the vacuum suction device are formed on the front surface of the suction device body 30, and the suction plate 2 has a number of suction holes connected to any of the suction grooves 31 as shown in FIG. 13 is formed. Therefore,
By setting the photosensitive material 1 on the front surface of the suction plate 2 and driving the vacuum suction device, the photosensitive material 1 can be sucked to a predetermined position of the suction device 3.

The suction device 3 constitutes a platen of a multi-sided plate-making camera, and is movably supported by a base 16 which constitutes a main body of the multi-sided plate-making camera via a moving device 17. The moving device 17 is composed of an xy moving device or the like, and supports the suction device 3 movably in directions orthogonal to each other in a plane parallel to the photosensitive material suction surface. A document image is formed by forming a document image on the photosensitive material 1 attracted by the suction device 3 through an imaging lens (not shown), and the moving device 17 moves the photosensitive material 1 in the xy directions. By advancing the photographing while moving, a large number of original images are photographed on one photosensitive material 1 in a predetermined arrangement order.

One side edge of the suction device body 30 is a protruding edge 3
a, and the suction plate 2 reaches the protruding edge portion 3a. As shown in FIGS. 2 and 3, the adsorption device 3 adsorbs the photosensitive material 1 by protruding at least one side edge portion 1a thereof from the protruding edge portion 3a side of the adsorption device body 30 by a predetermined amount.

As shown in FIG. 3, a plurality of types of punching devices 61, 62, 63 and 64 are attached to the girder member 15 which constitutes the main body of the multi-sided plate-making camera. The punching devices 61, 62, 63, 64 form punch holes of different shapes in the photosensitive material, and the punch hole shapes formed by the punching devices 61, 62, 63, 64 are shown in FIG. There are various different shapes. Specifically, the punching device 61 is shown in FIG.
The punching device 62 has a horizontally elongated oval punch hole 51 as shown in FIG.
2 has a punch shape 72 for forming a vertical notch 52, and the punching device 63 has a punch shape 73 for forming a vertically elongated oval punch hole 53 as shown by reference numeral 53 in FIG. Then, the punching device 64 is a punch type 74 for forming a circular punch hole 54 as shown by reference numeral 54 in FIG.
Have.

Each of the punching devices 61, 62, 63,
The structure of the punching device 64 is the same except for the punch type, and therefore the structure of one punching device will be described. As shown in FIG. 1, a pair of guide blocks 4 and 5 are joined and fixed to the girder member 15. Each of the guide blocks 4 and 5 guides one side edge 1 a of the photosensitive material 1 protruding from the suction device 3 and the suction device main body 30.
Has a sloped surface 4a, 5a which serves as a relief for the protruding edge 3a of the photosensitive material 1, and a guide surface 4b slightly chamfered to accept one side edge of the photosensitive material 1 following the sloped surface 4a, 5a. With 5b. A sensor for detecting that the photosensitive material 1 has penetrated into the punching device to a predetermined position is attached to the inner ends 9 of the guide surfaces 4b and 5b.

A guide cylinder 19 is fixed to the one guide block 5 so as to penetrate therethrough, and a male punch 6 is fitted in the guide cylinder 19 movably in a direction orthogonal to the photosensitive material 1. . A female shape 7 of a punch is fitted in the other guide block 4. The male shape 6 and the female shape 7 of the punch are opposed to each other with the guide surfaces 4b and 5b of the guide blocks 4 and 5 sandwiched therebetween. The punch male shape 6 is connected to a solenoid plunger 8. When the solenoid is energized and the plunger 8 is driven, the punch male shape 6 punches across the photosensitive material 1 between the guide surfaces 4b and 5b. 7 to form a punched hole having a predetermined shape in the photosensitive material 1. A pipe 18 is connected to the female shape 7 of the punch to guide punch scraps generated by forming punch holes in the photosensitive material 1 to the outside.

The moving device 17 moves the suction device 3 in directions perpendicular to each other in a plane parallel to the suction surface of the photosensitive material, thereby punching one side edge portion 1a of the photosensitive material 1 protruding from the suction device 3. Devices 61, 62, 63, 64
Can be inserted between the guide surfaces 4b and 5b of
Further, the relative positional relationship between each punching device 61, 62, 63, 64 and the photosensitive material 1 can be determined. Further, the solenoid for driving the male punch 6 of each punching device 61, 62, 63, 64 is selectively driven in accordance with the shape of the punch hole to be formed in the photosensitive material 1.

Next, the punch hole forming operation according to the above embodiment will be described step by step. First, one photosensitive material 1 is positioned and set on the front surface of the adsorption plate 2 of the adsorption device 3, and the vacuum adsorption device is driven to adsorb the photosensitive material 1 to the adsorption plate 2. The photosensitive material 1 may be a roll film set in the plate-making camera, cut into a predetermined size each time, or may be cut into a predetermined size in advance and set in the plate-making camera. Good.

The adsorbing device 3 advances the photographing of the original image on the photosensitive material 1 while moving in a direction orthogonal to each other while adsorbing the photosensitive material 1, and the original images for many pages are predetermined on the photosensitive material 1 in a predetermined order. Take an array. After the photographing of such a document image is finished or before the photographing is performed, the suction device 3 is moved by the moving device 17 so that the one side edge portion 1a of the photosensitive material 1 protruding from the suction device 3 is moved as shown in FIG. Enter the punching device as shown in. One side edge 1a of the photosensitive material 1 protruding from the suction device 3 is free and therefore curved as shown in FIG. 2, but is guided by the inclined surfaces 4a and 5a of the guide blocks 4 and 5 of the punching device. , Enter the punching device without any problem.

The moving device 17 moves the suction devices 3 in directions orthogonal to each other so that the photosensitive material 1 is located at a predetermined position with respect to the punching device corresponding to the punch hole shape to be punched in the photosensitive material 1. The depth of penetration of the photosensitive material 1 into a predetermined punching device is limited by the detection of the edge of the photosensitive material 1 by the sensor provided at the rear end portion 9 of the guide surfaces 4b and 5b of the guide blocks 4 and 5. . As described above, while the photosensitive material is positioned with respect to the selected predetermined punching device, the solenoid of the punching device is energized to work with the plunger 8 and the male punch 6
Is driven toward the female shape 7 and one side edge portion 1a of the photosensitive material 1 is driven.
Punch a hole with a predetermined shape. Normally, in order to punch a pair of punch holes, after punching one punch hole, the suction device 3 is moved again to position the photosensitive material 1, and the male shape 6 of the punch is driven to punch at another position. Form a hole.

The respective operating parts in the embodiments described above may be controlled in a predetermined order by a computer, a CPU, or the like. The photosensitive material suction surface of the suction device 3 may be oriented in the horizontal direction or the vertical direction.

[0021]

According to the present invention, a plurality of types of punching devices for punching punch holes of different shapes are attached, at least one side edge of the photosensitive material is protruded and sucked by the suction device, and the suction device. While advancing one side edge of the photosensitive material protruding from the punching device into the punching device, the relative positional relationship between each punching device and the photosensitive material is determined, and each punching device determines the punch hole shape to be formed in the photosensitive material. Since it is driven selectively, it is possible to punch holes in a shape suitable for the printing machine at a predetermined position on the photosensitive material in the multi-sided plate making camera, and separate the punching jig as in the past. There is no need to prepare it, and the work process can be simplified.

In a bright room type multiple-sided plate-making camera using a roll film, the camera does not function unless punching can be performed in the camera. Therefore, the present invention is applicable to such a type of multiple-sided plate-making camera. It is extremely useful.

[Brief description of drawings]

FIG. 1 is a partial cross-sectional side view showing a main part of an embodiment of a punching device in a multiple-sided plate-making camera according to the present invention.

FIG. 2 is a partial sectional side view showing a different operation mode of the embodiment.

FIG. 3 is a front view of the above embodiment.

FIG. 4 is a front view showing various shapes of punch holes formed in a photosensitive material according to the above-described embodiment.

[Explanation of symbols]

 1 Photosensitive Material 3 Adsorption Device 17 Moving Device 51, 52, 53, 54 Punch Holes 61, 62, 63, 64 Punching Device

Claims (1)

[Claims] 1. An adsorption device for adsorbing a photosensitive material, and a moving device for supporting the adsorption device so as to be movable in directions orthogonal to each other in a plane parallel to the adsorption surface of the photosensitive material. In a multi-sided plate-making camera which is capable of photographing a large number of original images on a single photosensitive material, the plate-making camera body is equipped with a plurality of types of punching devices for punching holes of different shapes. The adsorption device is
At least one side edge of the photosensitive material sticks out to adsorb the photosensitive material, and the moving device causes the one side edge of the photosensitive material protruding from the adsorbing device to enter the punching device, and the punching device and the photosensitive material. In the multi-sided plate-making camera, each punching device is selectively driven according to the shape of a punch hole to be formed in the photosensitive material. Punching device.