JPH11271989A - Image printing method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To properly print an image according to the type and the size of the index of an original film and the size of a printing plate. SOLUTION: A plate material printing device 10 is constituted so that printing plates P1 and P2 loaded at a printing plate loading part 24 are positioned at prescribed positions of a printing surface plate 210. Besides, a negative film N is arranged at a film loading part 12 based on an image printing pattern with respect to the printing plate, positioned according to the index and loaded. The film N precisely positioned by a sticking part 14 is placed on the plates P1 and P2 on the surface plate 210 and positioned.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to an image printing method for printing an image recorded on an original film onto a photosensitive lithographic printing plate.

[0002]

2. Description of the Related Art In newspaper printing or the like, a P (photosensitive layer) having a photosensitive layer formed on the surface of a thin plate (eg, about 0.3 mm) of aluminum or the like is used.
A photosensitive lithographic printing plate called an S plate or the like (hereinafter, referred to as a “printing plate”) is used. In order to form a printing plate from this printing plate, a printing apparatus that prints an image onto the printing plate positions the printing plate on a surface plate and places it thereon, and then places an original such as a negative film on the printing plate. The film is placed and positioned. Thereafter, the original film is brought into close contact with the printing plate and irradiated with light from a light source to print the image recorded on the original film onto the printing plate.

[0003] Printing plates used for newspaper printing have various sizes in which an image for one newspaper is printed vertically for two pages.
An image for one page of a newspaper is recorded on a document film for printing such an image for two vertical pages.

[0004] In recent years, with the diversification of newspaper printing, spreads 1
In some cases, a two-page spread image is printed on a printing plate using an original film on which images of pages are recorded. The printing plate used for printing one page spread image has such a width that the image of two newspaper pages can be printed horizontally, and the image of one spread page is arranged vertically and printed. What can be attached is used.

On the other hand, when an image is recorded on an original film by exposure, at least two or more register marks or punch holes are formed in a non-image portion as an index for positioning. The printing position of the image is determined based on the holes. In the plate printing device, when positioning the original film on the printing plate,
The registration marks and punch holes are used as a reference.

By the way, in a printing plate printing apparatus for printing an image recorded on an original film onto a printing plate,
The positioning of the original film is performed using either the register mark or the punch hole. The printing plate for printing the image recorded on the original film has a width of one newspaper page or one spread page. One of them. For this reason, it is necessary to perform image printing using a different plate printing device depending on whether the index provided on the original film is different or the recorded image is for one page of a newspaper or one page of a double-page spread. There is a demand for a plate printing apparatus that can appropriately perform image printing regardless of the size of the original film or the size of the original film.

[0007]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned circumstances, and a single printing plate printing apparatus is used to appropriately print an image in accordance with the type and size of the index of the original film and the size of the printing plate. An object of the present invention is to propose an image printing method capable of performing printing.

[0008]

The invention according to claim 1 is
An image printing method for printing an image recorded on an original film on a printing plate placed and positioned on a surface plate, wherein the printing plate is positioned on the surface plate according to its size, The original film placed and loaded on the tray according to the positioning index and image size formed on the original film and the printing pattern on the printing plate positioned on the surface plate is printed on the positioning table. After positioning based on the index according to the pattern and the image size, the original film on the positioning table is placed on a predetermined position of a printing plate on the surface plate and image printing is performed. .

According to the present invention, the original film is arranged on the tray according to the printing pattern on the printing plate. At this time, the original film is provisionally positioned on the tray in accordance with the size of the punch hole or the size provided as an index for positioning. Take this original film out of the tray,
After accurate positioning based on punch holes or registration marks provided as positioning indices on the positioning table, the printing plate is exposed by exposing the printing plate. Also,
The document film positioned on the positioning table is placed on the printing plate so that the original film is kept as it is.

For example, when printing an image of one page of a newspaper or an image of one page of a newspaper in the vertical direction of a printing plate (vertical direction of the original film) and printing it, the original film on which the image of one page is recorded is placed on a tray. At a predetermined position. Also, when printing two pages of newspaper images side by side on the printing plate (in the direction orthogonal to the top and bottom directions of the original film, in the width direction),
When the original films for one page of newspaper are arranged side by side at a predetermined position on the tray, and the image of one page of the spread is recorded, the original film on which the image of one page of the spread is recorded is placed on the tray at a predetermined position. To the position of.

On the other hand, an original film on which registration marks are mainly recorded for positioning is temporarily positioned on a tray based on the size, and an original film on which punch holes are formed for positioning is used as a reference. Then, it may be temporarily positioned on the tray.

This makes it possible to print the image of the original film on the printing plate by using an arbitrary printing pattern corresponding to the size of the printing plate or the size of the original film.

According to a second aspect of the present invention, the index, the image size, and the printing pattern of the original film loaded on the tray are detected by the detecting means, and the positioning is performed on the positioning table based on the detection result of the detecting means. Is performed.

According to the present invention, there is provided a detecting means for detecting a use state of the temporary positioning means for temporarily positioning the original film in accordance with the index or size of the original film and the printing pattern.

Thus, the index, size, printing pattern and the like of the original film can be known from the detection result of the detecting means. The document film is positioned on the positioning table by using the detection result of the detection means. Thus, it is possible to prevent an error in inputting the size and index of the original film loaded on the tray and to omit the operation of inputting the index and size of the original film.

[0016]

Embodiments of the present invention will be described below with reference to the drawings. [First Embodiment] FIG. 1 shows a flow of processing in a printing plate printing apparatus 10 applied to the present embodiment. The plate material printing apparatus 10 has a film loading unit 12 provided at a central portion in a not-shown machine frame, and a document film (hereinafter, referred to as a “negative film N”) as a tray 38 to be described later.
It is placed and loaded inside. An adhering section 14 is provided adjacent to the film loading section 12, and the loaded negative film N is taken out of the tray 38, sent to the adhering section 14, and positioned in the adhering section 14. Later, for example, a negative bar 16 formed of a band-shaped metal body
Pasted in. The negative film N stuck on the negative bar 16 is sent to the printing unit 20 via the standby unit 18.

On the other hand, a photosensitive lithographic printing plate (hereinafter, referred to as “printing plate P”) on which an image is printed by the plate material printing apparatus 10 is:
The printing plate is loaded into the printing plate loading unit 24 in a state of being stacked on the skid 22, taken out of the uppermost layer, sent to the printing unit 20, and positioned and mounted on a platen (not shown) arranged in the printing unit 20. Is placed.

On the printing plate P, the negative film N transported from the standby unit 18 to the printing unit 20 is placed and positioned. By irradiating light from a light source (not shown) in this state, the image recorded on the negative film N is printed on the printing plate P.

The printing plate P on which the image is printed is printed by a printing unit 2
The sheet is taken out from the plate 0, discharged to the outside of the printing plate printing apparatus 10, and sent to the next step. Further, the negative film N for which image printing has been completed is conveyed to the peeling section 26 and the negative
After being peeled from the sheet 6, the sheet is discharged onto, for example, a discharge tray (not shown).

Here, the negative film N processed by the printing plate printing apparatus 10 applied to the present embodiment will be described.

As shown in FIGS. 2A to 2C, the negative film N has a one-page size in which an image 32 of one newspaper is recorded, and a one-page spread of a newspaper (newspaper). Spread size (newspaper 2) on which an image 34 of two pages is formed.
Page size).

As shown in FIG. 2A, a registration mark 28 for positioning is provided on a negative film N having a size of one page in a newspaper.
FIG. 2B shows a negative film on which A and 28B are recorded (hereinafter referred to as “negative film N1” when specified).
As shown in the figure, a negative film having punched holes 30A and 30B (hereinafter referred to as "negative film N
2 "). Further, as shown in FIG. 2C, the register marks 28A, 2
8B (hereinafter referred to as “negative film N3” when specified) and a punch hole 30
A, 30B is provided with a negative film (hereinafter, referred to as "negative film N4" when specified).

As shown in FIG. 2A, the register mark 28A of the negative film N1 applied to the present embodiment is located on the top side of the negative film N1 in the top and bottom direction (the direction of arrow H; hereinafter, the arrow H in each drawing). ), And is formed in a cross shape at a substantially middle portion in the width direction. The registration mark 28B is formed as a line extending in the vertical direction at a substantially middle portion in the width direction on the ground side of the negative film N1.

As shown in FIG. 2B, the negative film N
The second punch hole 30A is formed, for example, as a round hole on the top side in the vertical direction of the negative film N2.
For example, the longitudinal direction is formed as a long hole along the vertical direction on the ground side in the vertical direction.

The punch holes 30A and 30B are located at one end (FIG. 2) from the center in the width direction of the image area 32A of the negative film N2.
((B), on the left side of the paper), and is greatly shifted from the position where the register marks 28A, 28B are recorded.

As shown in FIG. 2 (C), the negative film N3 is made to correspond to the image area 32A of one newspaper page of the image area 34A of two newspaper pages arranged in the width direction. The registration marks 28A and 28B are recorded in accordance with the registration marks 28A and 28B of the negative film N1. In the negative film N4, the punch holes 30A and 30B of the negative film N2 are made to correspond to the image regions of one newspaper page of the two newspaper image pages.
A and 30B are drilled.

In FIG. 2C, the negative film N4
Is indicated by a code in parentheses. Further, as shown in FIGS. 2A to 2C, the images 32 and 34 recorded on the negative film N together with the date column 35A and the register mark 35B are Y, M, C, and BK. A color ball 35C or the like indicating which color of the image is recorded.

On the other hand, in the printing plate printing apparatus 10, FIG.
The image of the negative film N attached to the transparent rectangular attachment sheet S shown in FIG. One or two sheets of negative film N of one page size of newspaper can be pasted on this pasting sheet S side by side along the width direction, and one sheet of negative film N of spread size can be pasted. it can.

When two negative films N are pasted on the pasted sheet S, a punch hole 36A is formed in one of the peripheral edges on both sides in the width direction of the negative film N, and a punch hole 36A is formed in the other. 36B is drilled. Negative film N
Is attached to the attachment sheet S such that the images 32 and 34 are at predetermined positions with respect to the punch holes 36A and 36B. FIG. 2D shows a state in which two negative films N each having a size of one page of newspaper are pasted on the pasting sheet S. In the case of one negative film N, one of the negative films N is left open. Can be

On the other hand, as shown in FIGS. 1 and 3 (A), the plate printing apparatus 10 has a printing plate P1 of 2L1W size (FIG. 1) capable of printing images 32 of one page of a newspaper vertically. 1, 3 (B) and 3 (C).
As shown in FIG. 1, a printing plate P2 of 2L2W size that can be printed by arranging images 32 for one page of newspaper vertically and horizontally or images 34 of one page spread vertically (indicated by a two-dot chain line in FIG. 1) Can be loaded.

When printing an image on the printing plate P1, a negative film N1, N2 or a pasting sheet S on which a negative film N of one page size of a newspaper is pasted is used.
When printing an image on the printing plate P2, the negative films N1 and N2 each having a size of one page of a newspaper are loaded side by side.
A negative film N3, N4 having a size of two pages of newspaper or a pasting sheet S on which images of two pages of newspaper are arranged and pasted are used.

FIG. 4 shows a tray 38 provided in the film loading section 12. In the tray 38, the periphery of a long rectangular bottom plate 40 is surrounded by a side plate 42, a back plate 44, and a front panel 46. Front panel 46
Are arranged along the short side of the bottom plate 40, and a handle 48 is attached to the outer surface of the front panel 46.

The tray 38 is slidably mounted on the machine frame of the printing plate printing apparatus 10, and can be loaded with the negative film N by being pulled out of the machine frame with the handle 48 and pushed into the machine frame. Thereby, it is positioned at a predetermined position in the machine frame.

The negative film N is loaded on the tray 38 such that the top and bottom directions are along the short side direction. The one-page newspaper negative films N1 and N2 are loaded on the back plate 44 or the front panel 46 side and the back plate 44 side, and the pasting sheet S and the two-page newspaper negative films N3 and N4 are
It is placed and loaded over substantially the entire surface of the bottom plate 40. When printing an image on the printing plate P1, the negative film N1 or the negative film N2 is loaded on the back plate 44 side.

On the bottom plate 40 of the tray 38, a negative guide 5 is provided for temporarily positioning the negative films N1 and N3.
Reference numerals 0, 52, and 54 are provided, and a center guide 60 in which a negative guide 56 and a negative guide 58 are integrated is provided at a central portion for temporary positioning of the negative film N1. A negative guide 5 is provided around the bottom plate 40 for positioning the negative film N2 and the negative film N4.
4, slide pins 62 and 64 are provided on the back plate 44 side,
Slide pins 66, 68 used together with the slide pins 62, 64 when loading the negative film N2 side by side.
Are provided between the negative guide 54 and the front panel 46. Further, on the bottom plate 40, a fixing pin 70 used for loading the pasted sheet S is provided on the back plate 44 side, and a slide pin 72 is provided on the front panel 46 side.

Negative guides 50-58 and slide pins 6
Normally, the reference numerals 2 to 68 and 72 are in the retracted positions (shown by solid lines in FIG. 4), but are determined by the positioning positions (indicated by two-dot chain lines in FIG. 4) according to the index and size of the negative film N to be loaded on the tray 38. ). The negative guides 56, 5
8 is rotated about a rotation axis (not shown),
It is accommodated in the bottom plate 40 and is in a retracted state.

The pasting sheet S has punch holes 36A, 3
6B, the fixing pin 70 and the slide pin 72 are inserted into the tray 38, and the negative film N3 is
Slide pins 62 and 64 are inserted and loaded into 0A and 30B. If the number of the negative film N1 is one, the slide pins 62 and 64 are inserted into the punch holes 30A and 30B.

Further, the negative film N3 has guide portions 50A, 52 of the negative guides 50, 52, 54 at the periphery.
A, loaded in contact with 54A, and negative film N
1 is a guide body 50A, 54A, 56A of the negative guides 50, 54 and the negative guide 56 when loading one by one.
When two sheets are loaded side by side, one of the negative films N1 is
0, 54 and guide bodies 50A, 54 of the negative guide 58
A and the guide member 58A are loaded such that the peripheral edge thereof abuts, and the other negative film N1 is connected to the negative guides 52 and 54.
And the guide members 52A and 54A of the negative guide 58 and the guide member 58A are loaded.

As a result, the negative film N is placed on the tray 38.
Is provisionally positioned. The negative film N or the pasted sheet S loaded on the tray 38 is accurately conveyed to the pasting section 14 by a conveying means (not shown). In addition,
For transport from the tray 38 of the film loading unit 12 to the attaching unit 14, a conventionally known transport mechanism such as suction and holding by a suction cup or the like to transport the film can be used. In the present embodiment, a detailed description will be given. Omitted.

As shown in FIG. 5, the attaching section 14 is provided with an attaching stage 76 as a positioning table on a base plate 74.

The pasting stage 76 has a fixed surface plate 78 large enough to place the pasted sheet S, and a fixed surface plate 78.
The negative film N is formed by a fixed surface plate 78 and a predetermined position straddling the movable surface plate 80. The movable film surface 80 is formed in the substantially rectangular openings 78A and 78B. Placed on When the opening 78A side and the opening 78B side of the attaching stage 76 are particularly distinguished, the opening 78A side is referred to as a first stage 76A, and the opening 78B side is referred to as a second stage 76B.

Negative film N loaded in tray 38
1, N2 is the first stage 76A or the second stage 76
B, the negative films N3 and N4 and the pasted sheet S are placed. It is placed over the first stage 76A and the second stage 76B. In the negative film N and the pasted sheet S, the side of the back plate 44 of the tray 38 is the first stage 76.
A is placed.

The moving surface plate 80 is an XY-θ stage mounted on a base plate 74 via a moving mechanism 82. The moving mechanism 82 moves the moving platen 80 to the negative film N.
Along the vertical direction (arrow X direction in FIG. 4), and the top side and the ground side of the moving platen 80 are relatively moved along the width direction of the negative film N (Y direction in FIG. 5). Thereby, the moving surface plate 80 can move in the X direction, the Y direction, and the rotation direction (θ direction).

The moving mechanism 82 can use the structure of a conventionally known general XY-θ table, and a detailed description is omitted in the present embodiment. Further, the moving mechanism 82 is not limited to the XY-θ table, and various structures such as a mechanism having a mechanism for moving in the rotation direction can be used.

As shown in FIG. 5, suction grooves 130A and 130B are formed in the fixed base 78 so as to surround the openings 78A and 78B, respectively. In addition, each of the movable platens 80 has a suction groove 1 on the periphery and diagonally.
32A and 132B are formed. 130A, 130
A negative pressure is individually supplied to each of B, 132A, and 132B, and the negative film N is sucked and held on the fixed surface plate 78 or the movable surface plate 80 by the negative pressure.

As shown in FIG. 5, the fixed surface plate 78 has a predetermined position outside the suction grooves 130A and 130B.
The positioning pins 134 and 136 facing the punch holes 30A of the negative films N2 and N4, the positioning pins 138 and 140 facing the punch holes 30B, and the positioning pins 142 and 144 facing the punch holes 36A and 36B of the bonded sheet S, respectively. Is provided. Positioning pin 13
Each of 4-144 protrudes above the fixed surface plate 78 by driving an air cylinder (not shown).

In the pasting section 14, the first stage 76A
When the negative film N2 or the negative film N4 is placed on the second stage 76B, the positioning pins 134 and 138 are made to protrude. When the negative film N2 is positioned on the second stage 76B, the positioning pins 136 and 140 are made to protrude. Further, when positioning the bonding sheet S, the positioning pins 142 and 144 are made to protrude.

Negative film N4 and first stage 76A
The negative film N2 placed on the
4, 138 are accurately positioned on the pasting stage 76 by being inserted into the punch holes 30A, 30B,
Negative film N2 placed on second stage 76B
Is that the positioning pins 136 and 140 are
By being inserted into OB, it is accurately positioned on the pasting stage 76. The pasting sheet S is accurately positioned and placed on the pasting stage 76 by inserting the positioning pins 142 and 144 into the punch holes 36A and 36B.

Since the negative films N2 and N4 and the pasted sheet S are provisionally positioned when they are loaded on a tray (not shown), they can be accurately positioned on the pasting stage 76 of the pasting section 14 from the film loading section 12. By the conveyance, the punch holes 30A, 30B, 36A, 36B face predetermined positioning pins 134 to 144.

On the other hand, the fixed base 78 has openings 78A,
A through hole 158 is formed at a predetermined position on the ground side of 78B,
The moving platen 80 has a through hole 160 formed in an extension 160 projecting to the top side. These through holes 158, 1
At 62, the negative films N 1 and N 3 tentatively positioned on the tray 38 are accurately conveyed,
By being placed on the upper side, the register marks 28A and 28B face each other.

A fiber sensor 184 attached to the register mark detector 164 is disposed in each of the through holes 158 of the fixed base 78, and a through hole 162 of the movable base 80 is provided.
Inside, fiber sensors 186 and 190 attached to the register mark detector 166 are arranged. Each of the register mark detectors 164 and 166 is attached to the back surface of the fixed platen 78 via a bracket 168, and is supported by a driving force of a driving unit such as an air cylinder (not shown).
As 0 moves in a direction orthogonal to the vertical direction, the fiber sensors 184 and 186 and the fiber sensor 190 attached to the tip of the support plate 180 move in the through holes 158 and 162. The amount of movement at this time is accurately measured by a linear encoder (not shown).

Fiber sensors 184, 186, 190
A photoelectric type having a light emitting portion and a light receiving portion is used, and light emitted from the light emitting portion is reflected by black portions of vertical lines 29A, horizontal lines 29B, and vertical lines 29C forming registration marks 28A and 28B. By doing, the registration mark 28
A and 28B are detected. In addition, as the registration marks 28A and 28B, the periphery
A, the horizontal line 29B and the vertical line 29C may be formed as white outlines.

In the attaching section 14, when the negative film N3 is placed on the first stage 76A and the second stage 76B, or when the negative film N1 is placed on the first stage 76A, the register mark of the first stage 76A is formed. Detectors 164, 16
6 while moving the fiber sensors 184 and 186 in the arrow Y direction, the register marks 28A of the negative films N1 and N3,
The position of 28B is measured, and based on the measurement result, the negative films N1 and N3 are sucked and held on the moving surface plate 80, and the top side and the ground side of the moving surface plate 80 are moved in the arrow Y direction. , N3 in a direction orthogonal to the vertical direction.

After that, once the suction of the negative films N1 and N3 by the moving platen 80 is released, the moving platen 80 is returned to the original position, and then the negative films N1 and N3 are again moved by the moving platen 80. While holding by suction and moving the movable platen 80 in the vertical direction (the direction of the arrow X), the registration mark 28 is detected by the fiber sensor 190 of the registration mark detector 166.
A, and a negative film N is detected based on the detection result.
1. Positioning is performed along the vertical direction of N3. In addition,
When the negative film N1 is placed on the second stage 76B, the same positioning is performed on the second stage.

Thus, the negative films N1 and N3 are accurately positioned on the attaching stage 76. In addition,
After the positioning of the negative films N1 and N3, for example, when the negative films N1 and N3 are for color printing, the positions of the registration marks 28A and 28B are determined by the registration mark detector 16.
4, 166. If the positions of the registration marks 28A, 28B exceed the predetermined error range, the positioning may be performed again.

The attaching section 14 has an attaching stage 7
A negative bar sticker 200 is attached adjacent to the ground side of No. 6. The negative bar sticker 200 attracts the negative bar 16 by a plurality of magnets 202,
The non-image portion of the negative film N positioned on the attaching stage 76 is superimposed. Thereafter, the application roller 204 is moved while pressing an adhesive tape (not shown) previously applied to the overlapping portion of the negative bar 16 and the negative film N. As a result, the adhesive tape previously applied to the negative bar 16 enters into a through hole (not shown) formed in the negative bar 16 and closely adheres to the negative film N, whereby the negative film N is applied to the negative bar 16.

The negative film N stuck on the negative bar 16 on the sticking stage 76 is conveyed integrally with the negative bar 16.

FIG. 6 shows a printing platen 210 provided in the printing section 20. The printing platen 210 is formed in a long rectangular flat plate shape, and is arranged so that the longitudinal direction is along the vertical direction of the negative film N. Further, the printing platen 210 is large enough to mount the printing plate P2 of a large size, and the printing plate P taken out from the skid 22 loaded in the printing plate loading unit 24 is placed thereon. .

The printing platen 210 is provided with two positioning pins 212 at one end in a direction (width direction) orthogonal to the longitudinal direction and a positioning pin 214 at one end in the longitudinal direction. The positioning pins 212 are attached to the printing platen 210.
Are arranged along the longitudinal direction of the
Each of the reference numerals 2 and 214 is normally accommodated in the printing platen 210, but protrudes from the upper surface of the printing platen 210 by operation of a driving means such as an air cylinder (not shown).

The printing plate 210 includes positioning pins 212.
A pair of pusher pins 216 is provided at
And a pair of pusher pins 21 at the other end in the width direction.
8 are provided. Further, the printing platen 210 is provided with a pusher pin 220 on the other end side in the vertical direction so as to face the positioning pin 214.

Each of the pusher pins 216 and 218 is arranged along the vertical direction of the printing platen 210, and is usually accommodated in the long holes 222 and 224. When each of the pusher pins 216 and 218 protrudes from the long holes 222 and 224 formed in the printing platen 210 onto the printing platen 210, the pusher pins 216 and 218 pass through the long holes 222 and 224 in the width direction of the printing platen 210. Along the positioning pin 212 side.

The pusher pin 220 is attached to the printing platen 2.
10 is housed in a long hole 226 formed in
When projecting from the long hole 226 onto the printing platen 210, the inside of the long hole 226 is moved toward the positioning pin 214 along the longitudinal direction of the printing platen 210.

The printing plate P is placed at a position where one end in the width direction is close to the positioning pin 212 and one end in the longitudinal direction is close to the positioning pin 214. As a result, a printing plate P having a size of two pages in a newspaper vertical
1 is a positioning pin 212, 214 and a pusher pin 2
16, 220 in the area surrounded by newspapers
The page-sized printing plate P2 is provided with positioning pins 212 and 214.
And the pusher pins 218, 220.

In the printing unit 20, when the printing plate P1 is placed on the printing platen 210, the positioning pins 212 and 214 are protruded, and the pusher pins 216 and 220 are protruded to the positioning pins 212 and 214, respectively. Move. As a result, the printing plate P1 is pressed and moved on the printing platen 210 by the pusher pins 216 and 220, and comes into contact with the positioning pins 212 and 214. In addition, printing section 2
0, when the printing plate P2 is placed on the printing platen 210, the positioning pins 212 and 214 are made to protrude.
The pusher pins 218 and 220 are protruded and moved toward the positioning pins 212 and 214, respectively. This allows
The printing plate P2 is placed on the printing platen 210 by the pusher pin 21.
8 and 220 to move the positioning pin 21
2, 214.

Each of the printing plates P1 and P2 is brought into contact with the positioning pin 214 at one end along the vertical direction and the two positioning pins 212 at one end along the width direction, so that the printing platen is formed. Positioned on 210.

In the printing section 20, rails 228 are arranged in pairs on both sides in the width direction of the printing surface plate 210. Rail 2
28 is provided along the longitudinal direction of the printing platen 210.

On the other hand, brackets 230 and 232 are attached to both sides of the printing platen 210 in the longitudinal direction.
The bracket 230 is provided on the top side of the negative film N along the top and bottom direction, and the bracket 232 is provided on the ground side. A slider 234 is attached to each of the brackets 230 and 232.
4 is engaged with the rail 228. Thereby, the printing platen 210 is supported on the rail 228 so as to be movable along the vertical direction of the negative film N.

The lower surface of the printing platen 210 is provided with ribs 2.
The tip of the rod of the air cylinder 238 is connected to the rib 236. The air cylinder 238 is disposed parallel to the rail 228,
When the air cylinder 238 is driven to extend and contract the rod, the moving platen 210 moves along the rail 228.

The rails 228 are provided with stoppers 240 and 242 facing the bracket 232, respectively. The stopper 240 is provided at an end of the rail 228 on the ground side, and the stopper 242 is arranged at an intermediate portion of the rail 228. In the printing platen 210, the bracket 230 abuts against the stopper 240 on the ground side, so that the top side of the printing plate P positioned and mounted on the upper surface faces a light source unit for printing (not shown), and the bracket 230 is Stopper 2
The ground side of the printing plate P is opposed to the light source section by contacting the printing plate P.

The printing plate P positioned on the printing platen 210 has a negative film N at a printing position facing the light source section.
Is placed and positioned. Thereafter, a squeezing process is performed to bring the negative film N into close contact with the printing plate P, and image printing on the printing plate P is performed. A suction groove (not shown) is formed on the upper surface of the printing platen 210, and the negative film N is brought into close contact with the printing plate P by holding the positioned printing plate P and negative film N by suction.

In the printing unit 20, the printing platen 210 on which the printing plate P is placed is moved on the rail 228,
The top side and the bottom side of the printing plate P are positioned at the printing position, and the image recorded on the negative film N is printed.

The printing plate P on which the image printing process has been completed is
The negative film N is taken out from the printing platen 210 and discharged, and when the printing process is completed, the peeling section 26 is removed.
After the negative bar 16 is peeled off after being conveyed to the tray, the negative bar 16 is collected on a discharge tray (not shown).

Hereinafter, the flow of the image printing process in the plate printing apparatus 10 will be described with reference to the flowcharts of FIGS.

In the printing plate printing apparatus 10, the negative film N is loaded on the tray 38 and the printing plate P is loaded on the printing plate loading section 24. Thereafter, the size of the printing plate P, the layout pattern of the image to be printed on the printing plate P, the size of the negative film N used for image printing, and whether the reference for positioning is a registration mark or a punch hole from an operation panel (not shown). When the information on the negative film N and the information on the printing plate P are input, the processing is started.

FIG. 7 schematically shows the processing of the printing plate P in the printing plate printing apparatus 10. When the printing plate P is loaded and the image printing is instructed, the printing material printing apparatus 10 reads the size of the printing plate P and a pattern for printing an image in a first step 300. Thereafter, the process proceeds to step 302, where the printing plate P is determined based on the size of the read printing plate P, that is, whether it is a printing plate P1 having a two-page vertical size or a two-page printing plate P2. Is taken out and transported, and is placed on the printing platen 210 of the printing unit 20.

In the next step 304, the printing platen 210
The printing plate P placed on the printing platen 21 is printed based on the size.
Position on 0. That is, when placing the printing plate P1 on the printing platen 210, the positioning pins 212, 2
The printing plate P <b> 1 is pressed toward the positioning pins 212 and 214 by the pusher pins 216 and 220 with the projection 14 protruding. When the printing plate P2 is placed on the printing platen 210, the printing plate P2 is pressed by the pusher pins 218 and 220 toward the positioning pins 212 and 214. Thereby, any of the printing plates P1 and P2 having different sizes can be accurately positioned on the printing platen 210 based on the positioning pins 212 and 214. In addition,
In the printing plate printing apparatus 10, first, an image is printed on the top side of the printing plate P. In parallel with the positioning of the printing plate P on the printing platen 210, the air cylinder 238 is driven to drive the printing platen. 210 is moved to the ground side.

Thereafter, in step 306, it is confirmed whether or not the negative film N has been positioned on the printing plate P.

On the other hand, when image printing on the printing plate P is instructed by the printing plate printing apparatus 10, the processing of the negative film N loaded on the tray 38 is started. At this time, tray 3
8, a negative film N is arranged according to a printing pattern of an image on a printing plate P, and negative guides 50 to
58 or slide pins 62 to 68, 72 and fixing pin 7
2, they are temporarily positioned and loaded according to the size and the index.

FIG. 8 shows an outline of the processing flow of the negative film N in the printing plate printing apparatus 10. Plate printing equipment 1
0, when the start of the image printing process on the printing plate P is instructed, in the first step 320, the image printing pattern on the printing plate P, the size of the negative film N loaded in the tray 30 and the registration marks 28A, It is read whether or not 28B is recorded, or whether punch holes 30A and 30B (in the case of the pasted sheet S, punch holes 36A and 36B) are formed.

In the next step 322, the negative film N is taken out of the tray 38, transported to the attaching stage 76 of the attaching section 14 and placed thereon, and is temporarily positioned on the tray 38 and adjusted to the arrangement at the time of loading. Then, the negative film N is positioned on the attaching stage 76 (step 324).

That is, when one negative film N1 or N2 is loaded in the tray 38, the negative films N1 and N2 are transferred to the first stage 76A.
When the two negative films N1 and N2 are loaded on the tray 38, the negative films N1 and N2 are positioned on the first stage 76A and the second stage 76B. In addition, when the pasted sheet S is loaded on the tray 38, the negative films N3 and N4 or the pasted sheet S are positioned over the first stages 76A and 76B.

The negative film N positioned on the bonding stage 76 is conveyed to the printing unit 20 while the arrangement at the time of positioning by the negative bar 16 is maintained after the negative bar 16 is bonded (step 326). (Step 328).

Thereafter, in step 330, the printing platen 3
It is confirmed whether or not the printing plate P has been positioned on the reference numeral 10, and the positioning of the printing plate P is completed (affirmative determination), step 3
32, the negative film N is placed and positioned on the printing plate P. This makes it possible to print the image of the negative film N on the printing plate P.

In the flowchart shown in FIG. 7, when the positioning of the negative film N on the printing plate P is completed, an affirmative determination is made in step 306 and the process proceeds to step 308. In this step 308, after performing a squeezing process for bringing the negative film N positioned on the printing plate P into close contact with the printing plate P, the light source unit (not shown) is lowered to cover an area where an image is to be printed. The printing plate P is exposed by light emitted from a light source above the film N. Thus, the image of the negative film N is first printed on the top side of the printing plate P.

When the image printing on the top side of the printing plate P is completed, it is checked in step 310 whether the image printing on the printing plate P is completed, and when the image printing on the ground side is performed (No in step 334). In step S304, the printing platen 210 is moved to position the ground side of the printing plate P at the image printing position.

On the other hand, in the processing of the negative film N shown in FIG. 8, it is confirmed at step 334 whether or not the image printing using the negative film N has been accommodated, and then the image printing using the negative film N is performed. If so (No in step 334), the process proceeds to step 330 to check whether the next printing plate P has been positioned at the image printing position.

When the image printing using the negative film N is to be ended (Yes at step 334), the process proceeds to step 336 to discharge the negative film N from the printing unit 20.

In the flowchart shown in FIG. 7, when the printing plate P is moved to the ground side and the positioning of the negative film N is completed, the printing plate P is exposed and the image of the negative film N is converted to the ground of the printing plate P. When the image printing is completed (YES in step 310), the process proceeds to step 312 to discharge the printing plate P.

As described above, the plate printing apparatus 10 can print an image on the printing plate P on the printing platen 210 irrespective of the size and type of the negative film N. Further, the printing plate printing apparatus 10 can accurately position the printing plate P on the printing platen 210 regardless of the size of the printing plate P. Therefore, as shown in FIG. 3 (A), the printing plate P1 is pasted on the negative film N1 on which the register marks 28A and 28B are recorded as indices, the negative film N2 on which the punch holes 30A and 30B are formed, and the pasting sheet S. The image of the attached negative film N can be printed. FIG.
As shown in (B), in the plate printing apparatus 10, when a negative film N of one page size of a newspaper is lined up and pasted on a pasting sheet S on a printing plate P2, the negative film N1 or the negative film N2 is used. You can print an image in which images are arranged side by side. At this time, one of the negative films N arranged side by side is the negative film N1 on which the register marks 28A and 28B are recorded, and the other is the punch holes 30A and 3A.
The negative film N2 on which OB is formed can also be used.

Further, as shown in FIG. 3 (C), the plate printing apparatus 10 can also print the images of the negative films N3 and N4 each having a two-page spread on the printing plate P2.

Therefore, even if the types and sizes of the negative films N are mixed, the printing plates P1 and P2 having different sizes are used.
Can be printed on each of the images in a desired arrangement pattern. [Second Embodiment] A second embodiment of the present invention will be described below. Note that the basic configuration of the second embodiment is the same as that of the first embodiment, and the same components as those of the first embodiment are denoted by the same reference numerals and description thereof is omitted.

FIG. 9 shows a schematic configuration of the detecting section 248 for detecting the type and size of the negative film N loaded on the tray 38. Negative guides 50, 52, 54, 56, 5 for provisional positioning of the negative film N are provided on the tray 38.
8 and the limit pins 250, 252, 254, 25 as detecting means for detecting whether or not each of the slide pins 62, 64, 66, 68, 72 is at the positioning position.
6, 258, 260, 262, 264, 266, 268
Are connected to the controller 270. The limit switches 250 to 268 include, for example, negative guides 50 to 58, slide pins 62 to 68,
It is turned on when 72 is moved to the positioning position.

Thus, the controller 270 can determine the size and type of the negative film N placed on the tray 38 based on the ON / OFF states of the limit switches 250 to 268.

For example, when the limit switches 250, 254, 256 provided for the negative guides 50, 54 and the negative guide 56 of the center guide 60 are turned on, it can be determined that one negative film N1 is loaded. . When the limit switches 250 to 254 of the negative guides 50 to 54 are turned on and the limit switch 258 of the negative guide 58 of the center guide 60 is turned on, it can be determined that two negative films N1 are loaded side by side. When both of the limit switches 256 and 258 of 56 and 58 are off, it can be determined that the negative film N3 is loaded.

When the limit switches 260 to 266 of the slide pins 62 to 68 are on or the limit switch 258 of the negative guide 58 is on, it can be determined that two negative films N2 are loaded. When the limit switch 268 of the slide pin 72 is on, it can be determined that the pasted sheet S is loaded.

When the limit switches 260 and 262 of the slide pins 62 and 64 are turned on, it can be determined that the negative film N4 having a one-page spread is loaded.
When 56 is on, one negative film N2
Can be determined to be loaded.

The controller 270 is connected to an operation panel 272 provided in the printing plate printing apparatus 10, and the size of the printing plate P and an image printing pattern are input by operating the operation panel 272. Thereby, the controller 270 can control the limit switches 250 to
The negative film N loaded on the tray 38 can be accurately determined based on the detection result of 268 and the arrangement pattern of the image input to the operation panel 272, and whether the loaded negative film N matches the arrangement pattern is determined. Is also possible.

FIG. 10 shows a flowchart according to the second embodiment. In this flowchart, when image printing on the printing plate P is instructed, the first step 3
At 40, the size and arrangement pattern of the printing plate P are read, and at the next step 342, the limit switch 250
The size and type of the negative film N loaded in the tray 38 are read from 〜268.

In the next step 344, it is checked whether or not the size of the negative film N loaded in the tray 38 matches the arrangement pattern of the image to be printed. At least if there is no problem (Yes in step 344) ), The process proceeds to step 322 to start processing the negative film N.

On the other hand, when an image is to be printed on the printing plate P1, when the negative film N3 or N4 having a two-page spread is loaded on the tray 38, the size of the negative film N is at least reduced to the printing plate P. If the image does not conform to the layout pattern at the time of printing (negative determination in step 344), the process proceeds to step 346 to display an error and prompt confirmation.

Thus, regardless of the size of the printing plate P and the size and type of the negative film N, an image can be printed in a desired pattern, and the printing process of the image can be performed smoothly and accurately. .

Although it has been detected whether or not the negative guides 50 to 56 and the slide pins 62 to 68, 72 are at the positioning position, it is also possible to detect whether or not they are at the standby position. Thus, the type and size of the negative film N loaded on the tray 38 can be determined more appropriately, and a smooth printing process can be performed.

The present embodiment described above does not limit the configuration of the present invention, and it is not limited to the configuration of the printing section 20, but also the tray 38 for loading the negative film N and the attaching section for positioning the negative film. For 14, any configuration can be used.

In this embodiment, the registration marks 28A and 28B for positioning the original film and the punch holes 30 are used.
A and 30B are formed on both sides in the vertical direction, and punch holes 36A and 36B for positioning the bonded sheet S are formed on both sides in a direction orthogonal to the vertical direction. The positions of the registration marks and the punch holes for positioning are as follows. It is not limited to this. It is sufficient that at least two or more registration marks and punch holes for positioning are formed at predetermined positions, and means for positioning the original film may be arranged in accordance with the positions of the registration marks and punch holes.

[0105]

As described above, according to the present invention, an excellent effect that an image of a document film can be printed on a printing plate with an arbitrary printing pattern according to the size of the printing plate or the size of the document film can be obtained. can get. Further, according to the present invention, it is possible to accurately determine whether the original film loaded in the tray matches the printing pattern of the image on the printing plate.

[Brief description of the drawings]

FIG. 1 is a schematic diagram showing a process flow of a printing plate printing apparatus according to the present embodiment.

2A is a schematic view showing a one-page size negative film on which register marks are recorded, FIG. 2B is a schematic view showing a one-page size negative film on which punch holes are formed, and FIG. FIG. 3D is a schematic view showing a page-size negative film, and FIG.

FIG. 3A is a schematic diagram showing a printing plate having a two-page size of a newspaper vertically, FIGS. 3B and 3C are schematic diagrams showing a printing plate having a two-page size of a newspaper vertically, and FIG. (C) shows a case where an image of a one-page spread of a newspaper is printed.

FIG. 4 is a schematic plan view of a tray according to the embodiment.

FIG. 5 is a schematic plan view showing a sticking stage according to the present embodiment.

FIG. 6 is a schematic diagram showing a printing platen according to the present embodiment.

FIG. 7 is a flowchart showing an outline of processing of a printing plate according to the present embodiment.

FIG. 8 is a flowchart showing an outline of processing of a negative film according to the first embodiment.

FIG. 9 is a schematic diagram illustrating a detection unit according to a second embodiment.

FIG. 10 is a flowchart showing an outline of processing of a negative film according to a second embodiment.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 10 Plate printing device 12 Film loading part 14 Pasting part 28A, 28B Register mark 30A, 30B, 36A, 36B Punch hole 38 Tray 50-58 Negative guide 62-68, 72 Slide pin 76 Pasting stage (positioning table) 76A 1st Stage (positioning table) 76B Second stage (positioning table) 134-144 Positioning pin 164, 166 Registration mark detector 184, 186, 190 Fiber sensor 210 Printing platen 112, 114 Positioning pin 116-120 Pusher pin 250-268 Limit switch 270 Controller N, N1, N2, N3, N4 Negative film (original film) S Paste sheet P, P1, P2 Printing plate

Claims (2)

[Claims] 1. An image printing method for printing an image recorded on an original film onto a printing plate placed and positioned on a surface plate, wherein the printing plate is positioned on the surface plate according to its size. At the same time, the original film arranged and loaded on the tray in accordance with the positioning index and image size formed on the original film and the printing pattern on the printing plate positioned on the surface plate is placed on a positioning table. After positioning based on the index according to the printing pattern and the image size above, the original film on the positioning table is placed on a predetermined position of a printing plate on the surface plate to perform image printing. An image printing method characterized in that: 2. An image forming apparatus according to claim 1, wherein an index, an image size, and a printing pattern of the original film loaded on the tray are detected by a detecting unit, and positioning is performed on the positioning table based on a detection result of the detecting unit. The image printing method according to claim 1, wherein: