JPH01283563A - Device for printing photosensitive planographic printing plate - Google Patents

Abstract

PURPOSE:To enable setting of printing conditions and automatic carrying of a processed PS plate to a prescribed printing machine and to improve workability by previously recording the information necessary for exposing conditions on an original sheet and reading this information. CONSTITUTION:The original sheet 16 housed in a housing section is carried to an exposing section 28 by an original sheet moving means 18. Sets of the information on plate surface such as original number and printing condition are previously recorded by bar codes on the sheet 16 carried to the exposing section 28 and the bar codes are read by a bar code reader disposed to the exposing section 28 just prior to printing of the image. The information is sent to a control means 24. The exposing conditions (for example, number of prints, etc.) are thus automatically set by the control means 24 in accordance with the information in case of printing and exposing the image of the sheet 16 to the plate material (PS plate) which is formed by coating a photosensitive agent on a base consisting of an aluminum plate, etc., and is used for a rotary press, etc., for news printing; in addition, the printed PS plate is automatically fed to the printing machine.

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention is a plate material (hereinafter also referred to as rPsJ plate) which is used in rotary presses for printing newspapers and has a support such as an aluminum plate coated with a photosensitizer. ) relates to a photosensitive lithographic printing plate printing device for printing an image on a photosensitive lithographic printing plate.

[Prior Art] A PS plate used in a rotary press for printing newspapers is supplied to the exposure section of a printing device, and is used as an original sheet (hereinafter referred to as a "negative sheet") in which a film on which an image is previously recorded is attached to a transparent sheet. The image is printed from

In this case, the negative sheets are fed to the exposure section by a so-called manual feeding method in which an operator feeds the negative sheets one by one. Further, the operator manually takes out the negative sheet from the exposure unit after the image has been printed on the PS plate.

However, since the negative sheet is relatively large, it is difficult to handle, and it is complicated for an operator to carry the negative sheet and feed it to the exposure section, or to take it out from the exposure section.

There is also the problem of so-called repeated printing, in which a negative sheet that has been repeatedly printed is erroneously supplied to the exposure section again.

For this reason, a photosensitive lithographic printing plate baking device has been proposed that can automatically feed a negative sheet to an exposure section and can also automatically take out a negative sheet from the exposure section after the image has been printed on the PS plate. (Special application 1986-1)
No. 32587).

[Problems to be Solved by the Invention] However, in the photosensitive lithographic printing plate baking apparatus described above, settings such as exposure conditions during printing are performed by an operator manually inputting the settings to the printing apparatus. Burned in depending on the setting conditions. Furthermore, information regarding each negative sheet is also provided by the operator setting conditions.

For this reason, the operator has to input the condition settings for each negative sheet set in the exposure section into the printing device, which is a cumbersome task, and there is also the concern that the conditions may be set manually.

In consideration of the above facts, the present invention is a photosensitive lithographic printing plate printing method that records necessary information on exposure conditions on a manuscript sheet in advance, and by reading this information, the printing of a PS plate and the next process can be carried out. The purpose is to obtain equipment.

[Means for Solving the Problems] The present invention includes a storage section that vertically stores original sheets in which a film on which an image is recorded is attached to a transparent sheet, and a storage section that receives the original sheets one by one from the storage section. an original sheet transporting means for transporting the original sheet to an exposure unit along a plane parallel to the surface of the original sheet; an exposing means for printing the image on the film onto a photosensitive lithographic printing plate; A discharge means for discharging a manuscript sheet from the manuscript sheet moving means to a discharge section-1, and a discharge means provided in the exposure section for reading plate surface information of a bar code provided on the film immediately before printing an image on the film. The apparatus is characterized in that it includes a barcode reader, a reflection plate provided in the exposure section, and a pressing means for pressing the original sheet against the reflection plate.

[Function] In the present invention having the above configuration, the original sheet stored in the storage section is conveyed to the exposure section by the original sheet moving means. The original sheet conveyed to the exposure section has the original number and
Plate information such as printing conditions is recorded in the form of a barcode, which is read by a barcode reader placed in the exposure section immediately before printing the image, and this information is sent to the control means.

When printing and exposing an image of a manuscript sheet to a PS plate, the exposure conditions (for example, the number of sheets to be printed, etc.) can be automatically set using a control means based on this information.
S plates can be automatically fed to designated printing presses.

[Effects] According to the present invention, conditions such as printing exposure are recorded by a barcode on a document sheet, and the barcode is read by a barcode reader by a pressing means that presses the document sheet against a reflecting plate provided in an exposure section. can be read and burned onto a PS version. Therefore, barcode reading becomes accurate.

In addition, it is not necessary for the operator to input conditions such as printing exposure for each document sheet, which improves work efficiency such as making the work faster and easier without requiring any skill. Excellent effects can be obtained in that it is possible to prevent erroneous inputs that tend to occur when inputting data, and that it is possible to prevent repeated printing in which a negative sheet that has been exposed twice is erroneously re-exposed.

[Example] The following is a photosensitive planographic printing plate baking apparatus 10 to which the present invention is applied.
An example will be described.

As shown in FIGS. 1 and 2, on the downstream side of the photosensitive lithographic printing plate baking device 10, there are provided a conveyor 18, a processing section 20 for developing, washing, desensitizing, etc., and a drying section 22. It is being The PS plate 14 is exposed to the negative sheet 16 at the exposure section 28.
After the image on the film pasted on is printed,
It is conveyed to the processing section 20 via the rear conveyor 18, where it is developed, washed with water, and desensitized, and then sent to the drying section 22, where it is dried.

The PS version is then folded at both ends by the folding machine 23.
The paper is transported to a rotary press (not shown) by a transport device 23A connected to the rear part of the folding machine 23.

As the processing device used in the processing section 20, for example, the device described in Japanese Utility Model Publication No. 60-35072 can be used. Further, as the bending machine 23, for example, a device such as that described in Japanese Utility Model Publication No. 61-35298 can be used.

A control section 24 composed of a microcomputer or the like is installed in the exposure section 28, and the system is controlled by this control section 24.

Next, the storage section that accommodates the negative sheets will be described. The exposure section 28 is connected to a negative sheet supply section 26 as shown in FIG.
, an exposure section 28 and a negative sheet discharge section 30.

A negative sheet cassette 32 is disposed in the negative sheet supply section 26 (see FIG. 4), and a plurality of negative sheets 16 are vertically loaded therein.

As shown in FIG. 5, the negative sheet 16 has a thin rectangular shape and is provided with an image recording section 16A in the center. A metal plate is fixed to one end along the width direction of the negative sheet 16 to form a hanging portion 16B. This hanging part 16B
Four through holes 34A, 134B, 36A, and 36B are provided at predetermined intervals along the width direction of the negative sheet 16. The negative sheet 16 is loaded into the negative sheet cassette 32 in a suspended state from the hanging portion 16B using these through holes 34A, 34B, 36A, and 36B.

In addition, the negative sheet 16 has a bar code 4 on the side in the width direction.
1 is written. This barcode 41 contains the conditions for printing and exposing the image on the negative sheet 16 onto the 28-plate 14 (number of copies, etc.), the conditions for automatically conveying the processed PS plate to a predetermined printing machine, etc. Data regarding 16 are recorded.

Before the film is processed by a film processing machine (not shown), this barcode is burned into a predetermined position of the film (at the edge of the film that does not cover the image) using a barcode manual device (not shown), and is printed on the film at a predetermined position (at the edge of the film that does not cover the image). At the same time, it is manually processed by a film processing machine and recorded as a barcode image.

Further, a negative sheet moving mechanism 38 is disposed in the photosensitive planographic printing plate baking device 10 as a negative sheet transporting means.
The negative sheet 16 is moved from the negative sheet supply section 26 to the exposure section 28 and from the exposure section 28 to the negative sheet discharge section 30, respectively.

As shown in FIGS. 4 and 5, the negative sheet cassette 32 is equipped with a pair of endless chain belts 40, 42. These endless chain belts 40, 42 are adapted to move in the direction of arrow A in FIG.

A large number of negative sheet hanging plates 44 are hung between the endless chain belts 40 and 42.

A pair of pins 46 are connected to this negative sheet hanging plate 44.
4g protrudes at a right angle. By inserting the pins 46 and 48 into the through holes 34A and 34B of the negative sheet 16, the negative sheet 16 is suspended from the negative sheet hanging plate 44 and taken into the main body of the photosensitive lithographic printing plate baking apparatus 100. There is.

Since a large number of negative sheet hanging plates 44 are provided on the endless chambers 40 and 42, a large number of negative sheets 16 can be hung correspondingly to the endless chambers 40 and 42.

The negative sheet 16 is placed at the back of the main body of the negative sheet cassette 32.
Pins 50 and 52 for transferring the material to the next process are protruded in parallel to each other. These pins 50, 52 are connected to a drive means (not shown) so that they can be moved in the axial direction.

Therefore, the negative sheet 16 suspended on the negative sheet hanging plate 44 is moved through the through hole 36 of the negative sheet 16 by the pins 50 and 52 axially moving in the direction of the negative sheet 16.
It is designed to be inserted into A and 36B and suspended. In this case, the moving plate 54 that constitutes a part of the negative sheet moving mechanism 38 is connected to a shaft 54 fixed to the moving plate 54.
6 is moved in the axial direction (vertical direction) to the top of the device, and is retracted from the locus of movement of the pins 50 and 52. By moving the negative sheet hanging plate 44 further toward the back of the main body of the photosensitive planographic printing plate baking apparatus 100, the pair of pins 46 and 48 protruding from the negative sheet hanging plate 44 penetrate the hanging portion 16B of the negative sheet 16. The puller comes out from the through holes 34A and 34B, and is guided by the endless chain belt 40, 42.
As shown by the imaginary line in FIG. 5, it is inverted.

Here, when the pins 50, 52 receive the negative sheet 16 and return to their original positions, the movable plate 54, which had been moving upwards of the apparatus, moves downwards. The pins 58 and 60 attached to the moving plate 54 and the through holes 3 provided in the negative sheet 16
4A and 34B become coaxial.

The moving plate 54 is disposed at one end of a connecting bar 61 disposed between the exposure section 28 and the negative sheet discharge section 30.
A movable plate 62 having the same shape is also arranged at the other end. The connecting bar 61 is moved in the longitudinal direction by a drive mechanism (not shown), thereby connecting the two movable plates (the left movable plate 5
4. The right side moving plate 62) is connected to the negative sheet supply section 26 and the exposure section 28, or between the exposure section 28 and the negative sheet discharge section 30.
They are located at the following locations:

Further, one end of a shaft 65 is attached to the connecting bar 61 at the center thereof. The other end of the shaft 65 is movable in the axial direction of the shaft 65 by a drive mechanism (not shown).

As a result, the negative sheet 16 is attached to the pin 50.5 as described above.
2, and the shaft 65 is moved toward the back of the photosensitive planographic printing plate baking device 10 in a state where the pins 58, 60 of the left side moving plate 54 and the through holes 34A, 34B are coaxial. The negative sheet 16 will be delivered to the left moving plate 54.

The left side moving plate 54 to which the negative sheet 16 has been delivered is conveyed to the exposure section 28 by moving the connecting bar 61 to the right of the apparatus (in the direction of arrow B).

As shown in FIG. 5, in the exposure section 28, a negative sheet hanging bar 64 is provided at the back of the photosensitive lithographic printing plate printing apparatus 10 in correspondence with the moving plate 54 and the moving plate 62.

This negative sheet suspension case 1-64 is suspended by having its both ends connected to the tips of a wire 70 wound around a pair of pulleys 66, 68. The pulleys 66 and 68 are pivotally supported by the main body of the photosensitive planographic printing plate printing apparatus 10 via brackets (not shown). Further, a weight (not shown) is attached to the end of the wire 70 on the opposite side from the negative sheet hanging bar 64, so that a certain tension is applied to the wire 70.

As shown in FIG. 5, pins 72 and 74 are protruded from the middle of the negative sheet hanging bar 64 in parallel with each other, and the distance between the axes of these pins 72 and 74 is equal to the distance between the through holes 34A and 34B of the negative sheet 12. is set equal to the distance.

Also, there are through holes 64A, 6 between these pins 72 and 74.
4B is penetrated, and the interval between them is a pin 5 that protrudes from the back of the negative sheet 12 body toward the negative sheet 16.
It is set equal to the center distance of 1.53. These pins 51, 53 for transferring the negative sheet 16 are connected to a drive means (not shown) and are movable in the axial direction.

When the negative sheet hanging bar 64 and the negative sheet 16 face each other, the pins 51 and 53 are coaxial with the through holes 64A and 164B, respectively, and at the same time, the pins 74 and 72 are coaxial with the through holes 34A and 34B of the negative sheet 12, respectively. ing.

For this reason, after the negative sheet 16 is once delivered to the pins 51 and 53, it is moved to the back of the photosensitive planographic printing plate printing apparatus 10. and the pin 74 of the negative sheet hanging bar 64.
．． 72 are inserted into the through holes 34A and 34B, the negative sheet 16 is suspended from the negative sheet hanging bar 64, and both ends are fixed to the negative sheet hanging bar 64 by fixing means (not shown).

As shown in FIGS. 9, 9A, and 10, in the exposure section 28, a shielding plate 55 is arranged behind the negative sheet 16. As shown in FIGS. This shielding plate 55 blocks light from an exposure device, which will be described later, to prevent it from leaking to the outside, and also prevents light from leaking to the outside when the negative sheet 16 is spread onto a surface plate 76, which will be described later. 16.

Further, a front frame 65 and a heper code reader 58 are fixed to the exposure section 28 . This barcode reader 5
The position 8 corresponds to the position of the barcode recorded on the negative sheet 16. Further, an air cylinder 59 is fixed to the front frame 65 above the barcode reader 58, a rectangular holding plate 59A is attached to the rond tip of the air cylinder 59, and a rectangular holding plate 59A that is slightly larger than the barcode is installed inside the holding plate 59Δ. A notch 59B is provided. At the time of this reading, since the barcode of the negative sheet 16 cannot be read by a reflective barcode reader, a metal plate (for example, an aluminum plate) coated with white baking paint is embedded in the position corresponding to the barcode of the shielding plate 55. , barcodes can be read.

In this way, the negative sheet 16 is attached to the negative sheet hanging bar 6.
4, the air cylinder 59 is pressed against the reflective plate 55A of the shielding plate 55 by a presser plate 59A attached to the tip of the air cylinder 59.

At this time, the barcode 41 recorded on the negative sheet 16 is in the opening 59B in the holding plate 59A (see the arrow direction view in FIG. 9A and FIG. The laser beam reflected on the barcode 41 is read. After reading the barcode, the pressure from the air cylinder 59 is released.

9 and 10 below the negative sheet hanging bar 64.
As shown in the figure, the surface plate 76 is arranged horizontally.

This surface plate 76 is supported by the main body of the photosensitive planographic printing plate baking apparatus 10 via a frame (not shown). The 23rd plate 14 housed below the negative sheet 12 is supplied onto the fixed Pi 76 by a 28th plate supply device 77 disposed below the surface plate 76.

Negative sheet 16 in a suspended state as shown in FIG.
A negative sheet fixing member 78 is fixed to the front surface of the surface plate 76 corresponding to the lower end of the plate. This negative sheet fixing member 7
A bottle 80182 extends through the bottle 8 and projects in the same direction as the bottles 72 and 74. The distance between the axes of these bins 80 and 82 is set equal to the distance between the through holes 35A and 35B (see FIG. 5) provided at the lower end of the negative sheet 12.

Further, these bins 80, 82 can be moved in and out of the front surface of the surface plate 76 by the operation of an air cylinder (not shown).

As a result, the negative sheet 16 is moved to the negative sheet hanging bar 6.
When the bottles 80 and 82 protrude while suspended from the holes 4, they are inserted into the through holes 35A and 35B.

A squeeze device 84 for pressing the negative sheet 16 onto the surface plate 76 is arranged in front of the surface plate 76. This squeeze device 84 moves while being guided by rails 86A186B arranged one on each side of the surface plate 76. When moving to the back of the photosensitive lithographic printing plate baking device 10, the squeeze device 84 unfolds the negative sheet 16 onto the surface plate 76.

In this case, the squeeze device 84 expands the negative sheet 16 onto the surface plate while pressing it with a roller (not shown) provided on the squeeze device 84, and moves to the original position after printing.

A 28-plate supply device 77 is shown in FIGS. 9-11. 9 is a side view, FIG. 10 is a front view, and FIG. 11 is an exploded perspective view showing a part of the 28-plate supply device 77.

The 28th plate supply device 77 is composed of a PS plate take-out device 92, a conveyance device 94, a positioning mechanism, and a discharge mechanism.
The 23rd plate 14 loaded into the PS plate loading section 90 is supplied onto the surface plate 76 and aligned, and the 23rd plate 14 that has been printed is then discharged.

The PS plate loading section 90 is disposed at the lower part of the photosensitive planographic printing plate baking device 10 and is defined by a frame 100 that forms the skeleton of the photosensitive planographic printing plate baking device 10 . A plurality of 23 plates 14 are stacked and loaded into this PS plate loading section 90.

A PS plate take-out device 92 is disposed above the PS plate loading section 90. This PS plate take-out device 92 is provided with a pair of frames 102, as shown in FIG.

The frames 102 are arranged parallel to each other along the horizontal direction, and four connecting plates 104 are spanned between the pair of frames 102. A mounting plate 106 is fixed between two connecting plates 104 arranged in the middle of these. The mounting plate 106 is connected at its center to a drive shaft of an air cylinder 108 fixed to a frame (not shown). The air cylinder 108 is arranged substantially vertically with its drive shaft facing downward. As a result, the frame 102, the connection plate 10
4 is moved up and down in a substantially vertical direction by the operation of an air cylinder 108.

A stopper mechanism 110 is provided at each end of the frame 102,
A suction cup 112 is arranged.

As shown in FIG. 12, the stopper mechanism 110 has a shaft 114 extending substantially vertically through the end of the frame 102. The shaft 114 is a slide bearing 116
The upper end portion is supported by the frame 102 via the holder, and the lower end portion is connected to a suction cup support plate 120. This allows the shaft 114 to move vertically. Further, a compression coil spring 124 is arranged between the frame 102 of the shaft 114 and the suction cup support plate 120. Further, the lower end of the shaft 114 passes through a suction cup support plate 120, and a stopper block 126 is attached to the tip thereof. This stopper block 126 is used to abut against the 23rd plate 14.

A guide shaft 118 extends through the frame 102 in the same way as the shaft 114 and is arranged parallel to the suction cup 112. The upper end of this guide shaft 118 is connected to the bracket 12.
2 to the frame 102, and the lower end passes through a suction cup support plate 120.

The side of the suction cup support plate 120 opposite to the penetrating portion of the guide shaft 118 protrudes outward from the tip of the frame 102, and the suction cup 1M112 is attached to the lower surface of the outwardly protruding portion with the suction surface facing downward. There is. This sucker 112
Negative pressure is supplied thereto by a negative pressure supply means (not shown). These stopper mechanisms 110 and suction cups 112 are similarly arranged at the other end of the frame 102.

An air cylinder 128 is vertically disposed in the middle of each of the two connecting plates 104 disposed on the outside between the pair of frames 102 .

The drive shaft of the air cylinder 128 is arranged downward, and a suction cup 130 is attached to the tip end thereof which passes through the connection plate 104.

Therefore, the suction cup 130 is moved in the vertical direction by the operation of the air cylinder 128.

Negative pressure is also supplied to this suction cup 130 by a negative pressure supply means (not shown).

Next, the conveyance device 94 will be explained. Figures 9 and 11
As shown in the figure, the transport device 94 is a PS plate take-out device 9.
23 plate 1 taken out from the PS plate loading unit 90 by 2
A first conveying section 132 that conveys the 23rd plate 14 horizontally, a second conveying section 134 that conveys the 23rd plate 14 diagonally upward, and a third conveying section 136 that brings the 23rd plate 14 that has been conveyed diagonally upward to a horizontal state. and a fourth conveying section 138 that conveys the 23rd plate 14 to the surface plate 76.

In the first conveyance section 132, a chain belt 142 is disposed on each of a pair of frames 140 that constitute a part of the frame 100 defining the PS plate loading section 90. The pair of chain belts 142 are wound around a plurality of sprockets 144 that are pivotally supported by the frame 140. The driving force of a motor 146 is transmitted to the pair of chamber belts 142 via a chain belt 148 for conveyance. A step is provided in the middle of the conveyance path of the chain belt 142, and the height of the upper step is 23.
This corresponds to the position where the plate 14 is taken out by the PS plate take-out device 92. Furthermore, two PS plate transport bars 150 are stretched between the pair of chain belts 142 and connected to each of the pair of chain belts 142. Therefore, by conveying the chain belt 142, the PS plate conveying bar 15
0 is configured to move in the conveying direction of the 23rd plate 14 and in the opposite direction.

This PS plate conveying bar 150 is normally located at the lower stage, and after the 23rd plate 14 is taken out from the PS plate loading section by the suction cup 112, it moves below the taken out 23rd plate 14, and the 23rd plate 14 is These PS plates are placed on the transport bar 150.

As shown in FIG. 9, the second conveyance section 134 is disposed at the rear of the photosensitive lithographic printing plate baking device 10, and conveys the 23rd plate 14 obliquely upward.

The second conveyance section 134 is provided with a pair of side plates 152, as shown in FIG. Between the side plates 152 there is a first
A pair of conveyance rollers 154 are wrapped around the conveyance section 132. The pair of conveyance rollers 154 are formed into skewer-shaped rollers, into which the 23rd plate 14 conveyed by the PS plate conveyance bar 150 is inserted.

In addition, there are three conveyor rollers 156 and 158 between the side plates 152.
．． 160 is hung and pivoted. These conveyance rollers 156, 158, and 160 are sequentially arranged along the conveyance direction of the 23rd edition 14 and diagonally upward. Six pulleys 162 are fixed to each of these conveyance rollers 156, 158, and 160 along the axial direction. Between the pulleys 162 of the transport rollers 156, 158, and
A round belt 164 is wrapped around each book. Conveyance roller 1
The driving force of a driving means (not shown) is transmitted to the conveyor roller 56 to rotate it, and this rotational driving force is transmitted by the round belt 164 to the conveying rollers 158 and 160 to rotate it. Further, the conveyance roller 158 includes a skewer-shaped conveyance roller 16.
6 are placed in contact with each other.

Therefore, the 2
The third plate 14 is conveyed to the round belt 164 and conveyed to the conveyance roller 15.
8.166 and then conveyed diagonally upward.

The third conveyance section 136 carries 23 plates 1 from the second conveyance section 134.
4 on the downstream side in the conveyance direction.

The third conveyance section 136 is equipped with a pair of side plates 168, and four shafts 170 are spanned between the pair of side plates 168.

Among these shafts 170, a plurality of pulleys 172 are attached to the shaft 170 closer to the second conveyance section 134 along the axial direction. A conveyor belt 174 is wound between each pulley 1720 of the shaft 170.

Further, one of the shafts 170 passes through one side plate 168, and the driving force of the motor 176 is transmitted to rotate the shaft. This causes the conveyor belt 174 to
It is adapted to move in the direction of conveyance of the third plate 14.

Further, in the third conveying section 136, a tension roller 178 is stretched between side plates 168. This tension roller 178 is in contact with the conveyor belt 174 from the outside of the conveyor belt 174, and as a result, the lower conveyor belt 174
It is designed so that it does not sag.

Further, the third conveyance section 136 is configured by an air cylinder 1 disposed below the third conveyance section 136, as shown in FIG.
It is connected to the drive shaft of 80 via a connection bracket 182. The tail section of the air cylinder 1800 is pivotally supported by a frame (not shown). As a result, when the air cylinder 180 is operated, the drive shaft of the air cylinder 180 protrudes from the air cylinder 180 main body, and the third conveying section 136 is placed in a substantially horizontal state as shown by the two-dot chain line in FIG.
Furthermore, when the drive shaft is retracted into the main body, it is in an inclined state as shown by the solid line.

A fourth transport section I38 is arranged above the third transport section 136. As shown in FIG. 13, the fourth conveyance section 138 is at the same height as the surface plate 76, and the 23rd plate 14 conveyed by the third conveyance section 136 is transferred to the photosensitive planographic printing plate baking device 10. half of the 23rd plate 14 is moved onto the surface plate 76.

As shown in FIG. 13, a guide rail 182 is fixed to the frame forming the skeleton of the photosensitive lithographic printing plate printing apparatus 10 in the fourth conveying section 138. As shown in FIG. One side of a suction cup support plate 1184 is fixed to this guide rail 182. A rodless air cylinder 186 is mounted on the upper part of this fixed suction cup support plate 184 on one side.
is located. This rodless air cylinder 18
A block 188 is attached to the lower part of the drive member 6. From both sides of this block 188 are a pair of engagement bins 1.
90 is highlighted. This engagement pin 190 is connected to an engagement block 192 placed and fixed on the suction cup support plate 184.
is inserted into the groove 192A. As a result, the suction cup support plate 184 is guided by the guide rail 182 by the drive of the rodless air cylinder 186, and is moved in the front-rear direction of the photosensitive planographic printing plate printing apparatus 100.

Four suction cups 194 are attached to the lower surface of the suction cup support plate 184 with the suction surfaces facing downward.

Negative pressure is supplied to these suction cups 194 by a negative pressure supply means (not shown). This suction cup 194 adsorbs the 23rd plate 14 that has been conveyed by the third 1a feeding section 136 and brought into a horizontal state, and the photosensitive lithographic printing plate baking device 10
is moved forward so that approximately half of the 23rd plate 14 is positioned above the surface plate 76.

Stage 1 is located in front of the rodless air cylinder 186.
96 is arranged, and is sucked by a suction cup 194,
Approximately half of the PS plate I4 moved to the front of the photosensitive lithographic printing plate baking device 10 by the rodless air cylinder 186 is placed thereon. For this reason, 23rd edition 14
The remaining half is placed on the surface plate 76 and the remaining half is placed on the stage 196.
placed on top.

A pair of elongated holes 198 are provided in the stage 196 along a direction perpendicular to the moving direction of the suction cup support plate 184. A pair of positioning pins 202 which are arranged below the stage 196 and stand up from the upper surface of the block 200 are inserted into the elongated hole 198 . The block 200 is disposed below the stage 196 and is fixed to the tip of the drive shaft of an air cylinder 204 whose drive shaft is disposed along a direction perpendicular to the direction in which the 23rd plate 14 is fed. Therefore, by the operation of the air cylinder 204, the positioning pin 202 is moved within the elongated hole 198 along a direction perpendicular to the moving direction of the suction cup support plate 184.

Further, in front of the stage 196, a positioning mechanism 206 for the conveyance direction of the 23rd plate 14 is arranged.

This positioning mechanism 206 is composed of a positioning pin 208 disposed on the front side of the stage 196 so as to protrude upward from the stage 196, and an air cylinder 210 through which the positioning pin 208 is driven. The air cylinder 210 is arranged below the stage 196, and one end of a vertically arranged positioning pin 208 is connected to the tip of its drive shaft. Therefore, the 23rd plate 14, which has been attracted to the suction cup 194 and moved to the front of the photosensitive planographic printing plate printing apparatus 10, is moved to the positioning pin 20 by the operation of the air cylinder 210 after the suction of the suction cup 194 is released.
Positioning is performed by moving 8.

In addition, a long hole 214 is formed in the side of the surface plate 76.
Below that is a positioning mechanism 212 for the width direction of the 23rd plate 14.
is located.

As shown in FIG. 13, this positioning mechanism 212 has a base block 216 fixed to the lower surface of the surface plate 76 in correspondence with the elongated hole 214. A rectangular groove 218 is formed in the base block 216. A positioning bar 220 is pivotally supported within this groove 218 . Positioning bar 22
0 is biased by a torsion coil spring (not shown) and is normally in a horizontal state. This positioning bar 2
20 is connected to a shaft 226 within the groove 218 via a connection block and a compression coil spring (not shown). One end of the shaft 226 is attached to the base block 216
It penetrates through the groove 218 and protrudes outward from the groove 218, and one end of a connecting plate 228 is connected to its tip. The other end of the connection plate 228 is connected to a drive shaft of a solenoid 230 located below the surface plate 76. Therefore, when the drive shaft of the solenoid 230 is retracted into the main body, the positioning bar 220 is accommodated in the groove 218 and retracted from above the top surface of the surface plate 76. In addition, when the drive shaft of the solenoid 230 is protruding, the positioning bar 220 is moved to the surface plate 76.
It protrudes from the top surface of the PS plate 14 to position it in the width direction.

As shown in FIGS. 10 and 13, a pair of movable conveyance rollers 233 and 234 are disposed on the left side of the surface plate 76 and supported by a frame (not shown) via a bracket. The movable conveyance roller 234 is driven by the driving force of the morph 236 being transmitted thereto. Furthermore, the movable conveyance roller 233 is connected to the drive shaft of the air cylinder 252, and is moved in the vertical direction by the drive of the air cylinder 252. Between this pair of moving conveyor rollers 233 and 234 is a PS with an image printed on one side.
The tip of the plate 14 is inserted, and the PS plate 14 is moved to the left side of the surface plate 76.

A discharge mechanism 238 for discharging the PS plate 14 to the outside is arranged on the left side of the pair of moving transport rollers 233 and 234.

As shown in FIG. 13, a pair of moving conveyance rollers 233
．． A stage 240 is arranged on the left side of 234.

This stage 240 is fixed onto a frame (not shown). A guide rail 24 is placed on the top surface of the stage 240.
4 is placed on the guide rail 244, and one side of a movable play (246) placed above the stage 240 and parallel to the stage 240 is supported.

Above the moving plate 246 is a rodless cylinder 24.
8 are arranged parallel to the guide rail 244. A moving block 25 is used as a moving member of the rodless cylinder 248.
0 is connected, and this moving block 250 is connected to the moving plate 246. A suction cup support frame 254 is arranged between the moving plate 246 and the stage 240. The suction cup support frame 254 is connected to a drive shaft of an air cylinder 256 erected on the upper surface of the moving plate 246, and is moved up and down by the drive of the air cylinder 256. Suction cups 258 are attached to the four corners of the suction cup support frame 254 with the suction surfaces facing downward.

Therefore, the suction cup 258 moved downward by the air cylinder 252 attracts and holds the PS plate 14, and in this held state is sent to the rear of the photosensitive planographic printing plate printing apparatus 10 by the rodless cylinder 248 and is discharged. It has become.

A positioning mechanism 260 is arranged below the stage 240. This positioning mechanism 260 has an air cylinder 262 arranged and fixed below the stage 240. A connecting bar 264 is fixed to the tip of the drive shaft of this air cylinder 262. The moving plate 246 is connected to a guide bar 266 arranged above and parallel to the air cylinder 262, and is guided along the driving direction of the drive shaft of the air cylinder 262.

The tip of the connecting bar 264 penetrates the stage 240,
It protrudes above the stage 240. A stopper 268 is fixed to the end of the connecting bar 264 protruding above the stage 240. This stopper 268 is connected to the air cylinder 2
By the drive of 62, it moves in the left and right direction on the paper of Figure 10,
The PS plate 14 is positioned in the width direction.

Further, in the exposure section 28, as shown in FIGS. 9 and 10, an image printing light source 88 is arranged above the surface plate 76. As a result, the negative sheet 16 is pressed and developed by the squeeze device 84 onto the PS plate 14 supplied to the surface plate 76.
The image is printed onto the PS plate 12.

Negative sheet 16 after exposure as shown in FIG.
is again lifted upward by the negative sheet hanging bar 64, the bins 58 and 60 of the right side moving plate 62 are inserted into the through holes 34A and 34, and the connecting bar 61 is axially moved in the right direction of the device to the negative sheet discharge section 30. It is about to be sent out.

That is, when exposing the negative sheet 16, the connecting bar 61 is axially moved to the left of the apparatus, and as a result, the right side moving plate 62 corresponds to the exposure section 28.

Next, the discharge means of the negative sheet discharge section will be described.

The negative sheet discharge section 30 has the through hole 3 of the negative sheet 16.
6A, 36B and the bins 288.290 are coaxial, and in this state, the bins 288.290 are opened from the back of the negative sheet discharge section 30.
By moving the bins 290 forward by a driving means (not shown), the bins 288 and 290 move through the through holes 36A and 36B.
The negative sheets 16 are then transferred to the bins 288, 290. Further, on the surface of the negative sheet 16 on the front side of the device, a through hole 34A of the negative sheet 16,
Bins 292 and 294 are provided corresponding to 34A. In this case, the right side moving plate 62 is retracted from the locus of movement of the bins 288, 290 by a driving means (not shown) by the axial movement of the connecting bar 61 in the left direction of the apparatus.

The bins 288 and 290 are driven by a drive means (not shown), and the negative sheets 16 are removed from the through holes 36A and 36B after being delivered to the bins 292 and 294.
The negative sheet is returned to its original position (at the back of the negative sheet discharge section 30).

Note that there is a negative sheet holding section 7 between the bins 292 and 294.
3 is arranged, and when the bins 288 and 290 return, they are rotated counterclockwise around the bin 75, and the negative sheet 16
This prevents the negative sheet 16 from being moved when the bins 288, 290 are pulled out from the through holes 36A, 36B.

As shown in FIG. 6, the control unit 24 that collectively controls the above operations includes a RAM 270, a ROM 272,
It is composed of a CPU 274, an input/output board 276, and a bus 278 such as a data bus or a control bus that connects these, and predetermined processing is performed based on input signals from each switch installed on an operation panel (not shown). It has become so. The main switches installed on the control panel are explained below.

First, the set value switch 280 is a switch for setting how many sheets of one negative sheet 16 are to be exposed, and can be set for each negative sheet 16 stored in the negative sheet cassette 32. When reading barcodes, settings are automatically made, so there is no need to set switches. In addition,
The set number of sheets is displayed on a display section installed on the operation panel.

Next, the split run switch 282 is used to operate the split run switch 282 (normally, one negative sheet 16 corresponds to one page of a newspaper, and two pages of the same PS plate are exposed with the same pattern, but two negative sheets are exposed) ( This switch is operated when exposing the A plate and B plate to one PS plate.

Note that when the split run switch 282 is in the off state, information on the same negative sheet is exposed in parallel on one PS plate.

Next, the start switch 284 is a switch for starting the process.

Here, the interrupt switch 286 is connected to the negative sheet cassette 3.
This switch is operated when it is desired to expose a negative sheet 16 other than the negative sheet 16 stored in the PS plate 14 to the PS plate 14 during processing, and when this interrupt switch 286 is turned on,
The exposure of the negative sheet 16 currently being processed in the exposure section 28 is completed, and this negative sheet 16 is transferred to the negative sheet discharge section 3.
Automatic exposure is stopped when the value reaches 0. Here, when the operator loads the cut-in negative sheet 16 from the negative sheet discharge section 30, the cut-in negative sheet 16 is exposed to light regardless of the presence or absence of the negative sheet 16 in the negative sheet cassette 32.

The operation of this embodiment will be explained below with reference to the flowchart of FIG.

First, in step 300, the negative sheet 16 is loaded into the negative sheet cassette 32. In this case, the negative sheets 16 are set in the negative sheet cassette 32 in the printing order of the PS plates 14, for example, when printing A and B plates successively, in this order. In the next step 302, the number of plates to be made is set using the set value switch 280. When reading a barcode, the setting is automatic, so step 302 is skipped and the process moves to step 304. When the number of sheets has been set, the process proceeds to step 304, where the split run switch 284 is turned on, and then the process proceeds to step 306, where the start switch 284 is turned on.

When the start switch 284 is turned on, the process moves to step 308 and the A-size negative sheet 1 is transferred from the negative sheet cassette 32.
6 is passed to bin 50.52, then step 310
At , the A negative sheet 16 is delivered to the left side movement vi54.

In the next step 312, the connecting bar 61 is axially moved to the right of the apparatus, and the left side moving plate 54 on which the A-size negative sheet 16 is suspended is moved to the exposure section 28. After the negative sheet 16 is moved to the exposure section 28 and positioned, it is suspended from the negative sheet hanging bar 64. In this state, the negative sheet 16 is moved to the air shielding plate 5 by the air cylinder 59.
5 is pressed against the reflective plate 55A embedded in 5. Then, the barcode 41 recorded on the negative sheet 16 is read by the barcode reader 58, and the input/output capo=)2
A signal is sent to CPU 274 via 70. As a result, necessary data regarding the A-plate negative sheet 16, such as the exposure conditions of the 23rd plate 14, the designated printing press position, etc.
Stored in AM270. After the bar code 14 is read on the A negative sheet 16, the pressure from the air cylinder is released. The A negative sheet 16 is suspended from the negative sheet hanging bar 64 and is fed onto the surface plate 76 by the squeeze device 84.
It is pressed and expanded onto the 23rd plate 14 and brought into close contact with the 23rd plate 14. At this time, with the A-size negative sheet 16 removed, the left side moving plate 54 pivots the connecting bar 61 toward the left side of the apparatus, is conveyed again to the negative sheet supply section 26, and receives the next negative sheet 16 (step 313). .313A, 314.
315.316.317).

The 23rd plate 1 is transferred onto the surface plate 76 by the PS plate supply device 77.
4 is supplied. This 23rd plate 14 is designed so that the images of 1602 negative sheets are printed in half on each sheet, with half of one side being printed first, and the remaining half being printed later.

In the next step 318, the A-size negative sheet 16 is exposed to light based on the information displayed on the barcode 41, and when this is completed, the process moves to step 320, where the A-size negative sheet 16 is moved to the right side moving plate 62 and leftward. Each of the next negative sheets 16 is hung from the board 54. When the hanging is completed, the process moves to step 322 and the connecting bar 62 is axially moved to the right of the device. As a result, A version negative sheet 1
6 is transported to the negative sheet discharge section 30, and the 8th version negative sheet 16 is transported to the exposure section 28. next step 324
Then, like the A-size negative sheet 16, the 8-size negative sheet 16 is placed at a predetermined position, and then, in step 326, exposure is performed based on the data read by the barcode reader 58. In this embodiment, information regarding the negative sheet 16 can be obtained from the barcode 41 displayed on the negative sheet 16, such as printing conditions (number of platelets, etc.), designation of a printing machine to transport the processed 28 plates, etc. There is no need for the operator to input

When the exposure is completed, the process moves to step 328, where the count of the number of platelets is incremented, and the process moves to step 330. In step 330, it is determined whether or not the number of plate-making sheets has reached the set number, and if it has not reached the set number, the process moves to step 332, where the 8th plate negative sheet 16 in the exposure section 28 is suspended from the left side moving plate 54. Next, in step 334, the connecting bar 61 is axially moved to the left of the device, and A
The plate negative sheet 16 is conveyed to the exposure section 28. At this time,
The 8th edition negative sheet 16 is once returned to the negative sheet supply section 26.

In the next step 336, the A-size negative sheet 16 conveyed to the exposure section 28 is placed at a predetermined position in the same manner as described above, and the process proceeds to step 318, where the above processing is repeated until the number of plates made reaches the set number.

When it is determined in step 330 that the number of plate-making sheets has reached the set number, the process moves to step 338, and the A-size negative sheet 16 in the negative sheet discharge section 30 is accommodated in the pins 292 and 294. In this state, no negative sheets are hung on both movable plates 54 and 62, and the connecting bar 6 is empty.
1 to the left of the device. As a result, the right side moving plate 62 is placed in the exposure section 28, and in this state, the 8th edition negative plate 16 is suspended from the right side moving plate 62.
By axially moving the connecting bar 61 to the right of the device,
The 8th edition negative sheet 16 is conveyed to the negative sheet discharge section 30 (steps 340 and 342).

In the next step 344, the 8th edition negative sheet 16 is stored in the pins 292 and 294 in the same way as the A edition negative sheet 16, and
Proceed to step 346 and split run switch 28
2 is turned off, and then in step 348 the activation switch 2 is turned off.
84 is turned off.

The above is the flow of starting a split run, and normally processing is performed sequentially along this flow.

Next, the interrupt processing routine will be explained according to the flowchart shown in FIG. This routine is executed by interrupt switch 2 on the operation panel.
This is a routine that is interrupted when 86 is operated.
In step 400, after the plate-making of the negative sheet 16 currently being made is completed, the negative sheet 16 suspended on the right side moving plate 62 is accommodated in the pins 292 and 294, and step 40
At step 2, the worker is notified that this process has been completed. This notification may be made by sounding a chime or by lighting a lamp.

In the next step 404, the door of the discharge section (not shown) is opened, and then in step 406, the negative sheet (
The cut-in negative sheet 16) is manually loaded onto the right side moving plate 62, and the process moves to step 408, where the door is closed. Step 4
When it is confirmed that the door is closed in step 08, step 4
10, the number of plates to be made using the interruption negative sheet 16 is set using the set value switch 280. When reading a barcode, the setting is automatic, so step 410 is skipped and the process moves to step 412. After the settings are completed, step 41
In step 2, it is determined whether or not the start switch 284 is turned on. If it is turned on, the process moves to step 414, where the connecting bar 61 is axially moved to the left of the apparatus, and the interrupted negative sheet 16 is moved to the exposure section 28. transport. After the interrupted negative sheet is positioned at the exposure position in step 415, it is hung from the negative sheet hanging bar 64. In this state, the interrupted negative sheet is pressed by the air cylinder 59 against the reflector 55A embedded in the shielding plate 55. The barcode 41 displayed on the interrupt negative sheet 16 is then read by the barcode reader 58, the printing conditions (for example, the number of plates to be made) are set, and the printing machine etc. to which the printed PS plate is fed is specified. (Steps 415A, 4164
17). The suspended negative sheet 16 is pressed and expanded by the squeeze device 84 onto the 28th plate 14 fed onto the surface plate 76, and is brought into close contact with the 28th plate 14, and exposure is started (step 418).

In the next step 420, the count value of the number of plates to be made is incremented, and then the process moves to step 422, where it is determined whether the number of plates to be made has reached the set number. If the number of plates to be made has not reached the set number, the process moves to step 418. In this case, the 28th plate 14 placed in the exposure section 28 is transferred to the insertion conveyor 18 placed at the rear of the photosensitive lithographic printing plate baking device 10.
, and are sent to the processing unit 20 and processed. Further, a new 28 plate 14 is supplied onto the surface plate 76 by a plate feeding device 77.

If it is determined in step 422 that the number of plate-making sheets has reached the set number, the process proceeds to step 424, where the cut-in negative sheet 16 in the exposure section 28 is suspended again from the right side moving plate 62, and the process proceeds to step 426, where the connecting bar is 61 is axially moved to the right of the apparatus, and the interrupted negative sheet 16 is conveyed to the negative sheet discharge section 30. The conveyed interrupted negative sheet 16 is received in the pins 292 and 294 in step 428,
Next, the process moves to step 430 and the interrupt switch 286 is turned off.

In this way, the photosensitive lithographic printing plate baking apparatus 10 according to the present embodiment can expose the negative sheet 16 that is desired to be interrupted even during normal exposure processing, and moreover, the barcode can be printed just before exposing the interrupted negative sheet. The plate information recorded in the barcode can be read accurately,
Printing conditions (number of copies, etc.) and processed PS plates can be automatically transported to a predetermined printing machine, improving work efficiency.

Further, in this case, since the interrupted negative sheets 16 are loaded from the negative sheet discharge section 30, there is no need to change the arrangement order of the negative sheets 16 in the negative sheet cassette 32, and there is no need to change the plate-making order to ':;*' again. do not have.

[Brief explanation of the drawing]

Fig. 1 is a plan view showing an embodiment of the photosensitive lithographic printing plate baking apparatus according to the present invention, Fig. 2 is a right side view of the photosensitive lithographic printing plate baking apparatus, and Fig. 3 is a plan view of the photosensitive lithographic printing plate baking apparatus. 4 is an internal configuration diagram of the negative sheet storage section, FIG. 5 is a schematic diagram showing the conveying state of the negative sheet, FIG. 6 is a block diagram of the control section, FIGS. 7 and 8 are control flowcharts, FIG. 9 is a sectional view showing the inside of a photosensitive planographic printing plate baking device;
FIG. 9A is a side view showing the relationship between the barcode reader and the holding plate and the reflection plate, FIG. 9B is a front view showing the holding plate as seen from the eight directions of the arrows in FIG. 9Δ, and FIG. The front view seen from the left side, Figure 11 is an exploded perspective view showing part of the PS plate supply device, Figure 12 is a sectional view showing the structure of the suction cup installation, and Figure 13 is the positioning of the surface plate and PS plate. It is an exploded perspective view showing a mechanism and a conveyance device. DESCRIPTION OF SYMBOLS 10... Photosensitive lithographic printing plate baking device, 16... Negative sheet, 24... Control section, 26... Negative sheet storage section, 28... Exposure section, 30... Negat discharge section, 41.・ ・Barcode, 58...Barcode reader.

Claims (1)

[Claims] (1) A storage section that vertically stores original sheets with images recorded on the film attached to a transparent sheet, and a storage section that receives the original sheets one by one from the storage section and stores them along a plane parallel to the surface of the original sheets. an exposure means for printing an image on the film onto a photosensitive lithographic printing plate; and a discharge means for discharging the original sheet after the image has been printed by the exposure means from the original sheet movement means. a barcode reader provided in the exposure section for reading plate surface information of a barcode provided on the film immediately before printing an image on the film; 1. A photosensitive lithographic printing plate baking apparatus, comprising: a reflective plate having a reflective plate; and pressing means for pressing the original sheet against the reflective plate.