JPH03221959A - Block material printing device - Google Patents

Abstract

PURPOSE:To constitute the device so that a stop position can be confirmed in the case a movement of a photosensitive lithographic printing plate stops in a block material printing device due to a failure, and the maintenance is facilitated by detecting and displaying the movement of the printing plate and the operating state of a positioning device, an exposure device, and a discharge device. CONSTITUTION:A printing plate is fed from a supply part to a printing part, positioned and the image of a negative film is printed and discharged. In this consecutive process, by a feed plate detector 262, upper/lower detectors 288, 290, positioning 1/2 detectors 314, 316, an image exposure detector 320, a horizontal feed detector 318, and a discharge detector 322, operating states of each device of feed plate, a feed plate carrier, positioning 1, exposure 1, positioning 2, exposure 2, and discharge plate are displayed on a display device 302 through a CPU 270. In such a way, a stop position when a movement of a photosensitive lithographic printing plate stops due to a failure can be confirmed, and the maintenance is facilitated.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention is a method for converting an image of an original film (hereinafter referred to as "negative film") into a photosensitive lithographic printing plate (hereinafter referred to as "rPs plate").
Regarding the exposure control method for controlling the exposure during printing, in detail, a negative film with an image recorded thereon or a transparent sheet (hereinafter referred to as "negative sheet") to which a negative film with an image recorded thereon is placed onto the PS plate. The present invention relates to a printing plate printing device that prints an original image recorded on a negative film onto a PS plate.

[Prior Art] In a PS plate used in a rotary press for printing newspapers, an image of a negative film or a negative film attached to a transparent sheet is printed by a plate printing device.

A stacker loaded with a plurality of PS plates is fed into the supply section of the printing plate printing apparatus by an auto feeder. After the PS plate is sent from the supply section onto the surface plate of the printing section, it is positioned on the surface plate by a positioning device and held on the surface plate.

On the other hand, the negative film or the transparent sheet (negative sheet) to which the negative film is pasted is inserted from the negative sheet supply section (negative film supply section) into the printing section, aligned and placed at a predetermined position on the PS plate. It will be covered later.

To the PS plate on which negative film or negative sheet is placed,
A predetermined amount of light is irradiated from a light source placed on the printing section.

As a result, the image recorded on the negative film is printed onto the PS plate.

After the image recorded on negative film is printed,
The negative film or negative sheet is removed from the 43rd plate and discharged from the printing section.

Further, the PS plate is discharged from the printing section to the outside of the plate material printing device.

In this case, since there are two images to be printed on the PS plate, the images are moved on the surface plate by a traversing device before being ejected from the printing section. At this time, when printing the same image, the same negative film or negative sheet is used as is, but when printing a different image onto the PS plate, the negative film or sheet on which a different image is recorded is supplied again to the negative sheet. The negative film is supplied from the negative film supply section to the printing section, and placed in close contact with a predetermined position on the 43rd plate.

[Problems to be Solved by the Invention] However, the state in which a negative film image is printed onto the PS plate by the above-mentioned printing plate printing device, and the operating state of the device cannot be clearly seen from outside the printing device. Can not. Furthermore, if a malfunction occurs in a part of the printing plate printing apparatus and this part is to be maintained, it is not possible to confirm which part is malfunctioning from outside the printing apparatus. In this case, the entire cover covering the printing plate printing device had to be removed to find the defective location, which was a troublesome task.

The present invention has been made in consideration of the above-mentioned facts, and an object of the present invention is to provide a printing plate printing apparatus that can confirm at what point the PS plate has stopped moving within the printing apparatus.

[Means for Solving the Problems] In order to achieve the above object, the present invention according to claim 1 includes a detection means for detecting the movement of the printing plate to the supply section and the printing section, and the operating state of the exposure device and the discharge device; The apparatus is characterized by having a display means for displaying the movement of the printing plate detected by the detection means and the operating state of the apparatus.

[Function] According to the present invention having the above configuration, the printing plate is supplied to the supply section and then sent to the printing section, where the negative film supplied from the negative film supply section is placed. The PS plate on which the negative film is placed is irradiated with light from a light source to expose the image. As a result, the image on the negative film is printed onto the PS plate.

The PS plate with the image printed thereon is discharged from the printing section.

In this process of printing an image onto a PS plate through the series of steps described above, the presence of the PS plate in the supply section and printing section is detected by the detection means, and the operating status of the alignment device, exposure device, and discharge device is detected. is detected. The detection results are displayed on the display means and notified to the operator.

Therefore, if a problem occurs at a certain point in the plate material printing device and the PS plate does not move to the next process, the display means will display the PS plate at the problem location, making it easy to identify the problem location. can.

As a result, it is possible to recognize whether or not maintenance is required on the rear part of the printing plate printing apparatus, so that the cover of that part can be removed and repaired.

Further, in the invention according to claim 2, the negative film is supported on a transparent sheet, so that handling and processing thereof can be performed smoothly.

[Effects of the Invention] According to the present invention having the above configuration, each step in which the printing plate is present is detected by the detection means, and the location where the printing plate is present is displayed by the display means. The operator can easily know the operating status of the printing plate printing machine and the location of any malfunctions in the plate printing machine, which has the excellent effect of facilitating maintenance of the machine.

[Embodiment] FIGS. 1 to 3 show an embodiment of a printing plate printing apparatus 10 according to the present invention. FIG. 1 is a side view of the printing plate printing apparatus, FIG. 2 is a front view, and FIG. 3 is a plan view. Large arrows A and B in each of these figures indicate the flow of the PS plate, which is a plate material.

As shown in FIGS. 1 to 3, a printing plate printing device 10
is formed into a box shape with a frame 11, and there are two inside.
A PS plate supply unit 14 that supplies the third plate 12 (see FIG. 3) and a surface plate 22 on which the 23rd plate 12 supplied from the PS plate supply unit 14 is placed are arranged, and the 28th plate 12 is recorded on the Henega film 36. a negative sheet supply section 1 that supplies a transparent sheet (negative sheet) 24 on which a negative film 36 is pasted to the printing section 16;
8, and the 23rd edition 12 on which the image of the negative film 36 was printed.
A PS plate discharge section 20 for discharging the PS plate is provided.

To this PS version supply unit 14, Japanese Patent Application Laid-Open No. 63106245,
The 23rd plate 12 can be fed using an auto feeder such as that described in Japanese Patent Application Laid-Open No. 63-171728.

Also, on the rear side of the PS version discharge section 20, there is a
72, Japanese Patent Publication No. 62-34429, etc. can be connected, and further a bending device etc. can be connected to the downstream side.

23 plates 1 supplied from the PS plate supply unit 14 to the printing unit 16
2 is positioned and placed on a surface plate 22 provided in the printing section 16 by a positioning device 21. This 23rd edition 1
A negative sheet 24 supplied from the negative sheet supply section 18 is placed on the 23rd plate 12 while being positioned at a predetermined position by the negative sheet positioning device 23.

In this state, light is irradiated from above by the lamp of the light source 134, and the image of the negative film 36 on the negative sheet 24 is printed onto the 23rd plate 12.

After the image on the negative film 36 is printed onto the 23rd plate 12, the negative sheet 24 moves upward from above the 23rd plate 12, and the 23rd plate 12 is discharged outward from the PS plate discharge section 20.

Next, the negative sheet 24 to which the negative film 36 with an image recorded is pasted will be explained with reference to FIGS. 4 and 5.

<Negative sheet> As shown in FIGS. 4 and 5, the negative sheet 24 has a thin rectangular shape, and a negative film attachment section 24A is provided in the center for attaching a negative film 36 on which an image is recorded. . A plurality of through holes 28 are formed at one end along the width direction of the negative sheet 24 (in the direction of arrow C in the figure). Pins 214 provided on a pinper 210 shown in FIGS. 5 and 18 pass through these through holes 28.

A plurality of through holes 30 similar to the through holes 28 are provided at the other end of the negative sheet 24 . These through holes 30
A pin 216 provided on a pin bar 212 shown in FIGS. 5 and 18 passes through the hole.

A negative film 36 on which an image is recorded is attached to the negative sheet 24 at a predetermined position using tape or the like.

In this state, the negative sheet 24 is placed on the 23rd plate 12 which has been placed in advance on the surface plate 22 of the printing section 16, and the image on the negative film 36 is printed onto the 23rd plate 12.

In this case, the negative film 36 can also be directly fixed with the pins 214 and 216 without attaching the negative film 36 to the transparent sheet.

Each part of the printing plate printing apparatus 10 will be described in detail below with reference to the drawings.

(PS plate supply unit) As shown in FIGS. 1 to 3, the PS plate supply unit 14
A plate feeding conveyor 40 is arranged.

This plate feeding conveyor 40 stores a plurality of 23 plates 12 and supplies the 23 plates 12 fed from a PS plate auto feeder (not shown) disposed on the side of the plate printing device 10 onto the surface plate 22. do.

0 As shown in FIGS. 6 and 7, the plate feeding conveyor 40
The shaft 42 and the shaft 4 are arranged parallel to each other.
A plurality of belts 46 are wound between the shafts 4 and 4 via a plurality of pulleys 48 and 50 attached to each shaft.

The shaft 42 has a pair of side plates 52 supported by the frame 11.
(However, only one side plate 52 is shown in FIGS. 6 and 7.
(The other side is omitted) is rotatably supported. One end of the shaft 42 passes through one side plate 52 and connects to the side plate 5.
2, and a sprocket wheel 54 is attached to the tip thereof. A chino 56 is wound around the sprocket wheel 54 and the drive shaft of the motor 260.

One end of a plurality of pillars 58 is supported by the shaft 42, respectively. A long hole 5 is provided at the other end of these pillars 58.
8A is provided, and the shaft 44 is inserted. Further, a compression coil spring 60 is arranged within the elongated hole 58A. The compression coil spring 60 biases the shaft 44 toward the end of the post 158. This makes Boo! J
A belt 46 wrapped around 48.50 is given tension.

A shaft 45 is disposed in the axially intermediate portion of the shirt 42, 44 so as to pass through a plurality of pillars 58. An air cylinder 64 is connected to this shaft 45 via a bracket 62.
One end of the drive shaft 64A is connected to the drive shaft 64A. The air cylinder 64 is rotatably supported to the frame 11 via a bracket 66.

Further, the air cylinder 64 is connected to a compressed air supply device 278 via a solenoid valve 276, and when the solenoid valve 276 is opened, compressed air is supplied to the air cylinder 64 and the air cylinder 64 is activated. This solenoid valve 276 is connected to a control device 264 which will be described later.
connected to.

When the drive shaft of the air cylinder 64 is inserted into the main body, the plate feeding conveyor 40 is retracted away from the surface plate 22, as shown by the dashed line in Figure 6, and the drive shaft of the air cylinder 64 is inserted into the main body. When protruding from the main body, the end on the shaft 44 side rotates around the shaft 42, and the end on the shaft 44 side approaches the surface plate 22. Thereby, the area around the surface plate 22 can be simplified, and the maintainability of each device arranged around the surface plate 22 is improved.

Further, a detector 262 is arranged above the belt 46 on the pulley 48 side. This detector 262 detects the PS plate 12 fed onto the belt 46 from an auto feeder (not shown). This detector 262 is connected to a control device 264.

This control device 264 has a RAM as shown in FIG.
266, ROM268, CPU270, input board 27
2 and an output port 274, which are connected to each other by a data bus 276. Above human power port 27
A detector 262 is connected to the output port 2, and the motor 260 and the solenoid valve 276 are connected to the output port 274.

Further, as shown in FIG. 7, an air cylinder 72 is attached to a support 58 located at an axially intermediate portion of the shaft 42 via a bracket 59. A hook member 74 is attached to the tip 3 of the drive shaft of the air cylinder 72. This hooking member 74 is arranged to protrude above the plate feeding conveyor 40,
The air cylinder 72 is driven to move along with the movement of the plate feeding conveyor 40. This hooking member 74 forces the PS plate 12 to pull up when it is caught on the plate feeding conveyor 40.
The PS plate 12 is surely sent onto the surface plate 22 by pressing the edge of the S plate 12.

A pair of conveyance rollers 65 rotatably supported by the side plate 52 is arranged at the upper part on the shaft 42 side.

The PS plate 12 fed from the aforementioned auto feeder (not shown) is inserted into the transport roller pair 65, and the PS plate 12 is fed onto the plate feeding conveyor 40.

Further, a guide roller 68 is provided on the surface plate 22 side of the pair of conveyor rollers 65.
．． 70 are arranged. The guide rollers 68 and 70 guide the PS plate 12 sent out from the transport roller pair 65 onto the plate feeding conveyor 40.

Therefore, the PS plate 12 fed from an auto feeder (not shown) is inserted between the pair of transport rollers 65, and is sent onto the plate feeding conveyor 40 while being guided by guide rollers 68, 70. The 23rd plate 12 sent onto the plate feeding conveyor 40 is conveyed on the plate feeding conveyor 4 and sent onto the surface plate 22 of the printing section 16.

Burning Section> As shown in FIG. 8, the surface plate 22 of the burning section 16 has suction grooves 78 formed on its upper surface. This suction groove 78 is
2, and second and third suction grooves 78B and 78C are formed so as to be surrounded by the first suction groove 78A. has been done. These first, second, and third suction grooves 78A,
78B.

78C are each connected to the negative pressure supply device 80,
Negative pressure is supplied to each of them independently, and the 23 plates 12 placed on the surface plate 22 are attracted. By this adsorption, 23rd edition 12
is fixed or closely attached to the surface plate 22.

In addition, since there are three systems of suction grooves, for example, as shown in Figure 9, when the size of the 23rd plate 12 is 5 mm smaller (i.e., the printing plate size of 2 pages of newspaper)
To fix the 23rd plate 12 to the surface plate 22, it is sufficient to supply negative pressure only to the suction groove 78C, and in this case, negative pressure is not supplied to the part where the 23rd plate 12 is not placed. Even when the negative sheet 24 is placed on the surface plate 22, it is not attracted to the surface plate 22.

Further, as shown in FIG. 10, when the size of the 23rd plate 12 is large (that is, the printing plate size of 4 newspaper pages), negative pressure is supplied to the grooves 78B and 78C to move the 23rd plate 12 onto the surface plate.
2 Fix it on top. The groove 78A is connected to the P fixed on the surface plate 22.
When the negative sheet 24 is placed on the S plate 12, the 23rd plate 1
This is to remove the air between the negative sheet 2 and the negative sheet 24 to achieve complete vacuum adhesion.

Positioning device> As shown in FIGS. 9 and 10, there is a positioning device in the width direction of the 23rd plate 12 on the front side (in the direction of insertion of the 23rd plate 12 on the surface plate 22 (in the direction of the arrow in FIGS. 9 and 10)). A reference pin 82 in the surface plate is arranged to determine the position of the surface plate.

The reference pin 82 in the surface plate 1 contacts the front side of the 23rd plate 12 fed from the plate feeding conveyor 40, and the surface plate 2 of the 23rd plate 12
2 to a predetermined position.

Further, around the surface plate 22, reference pins 84 and 86 outside the surface plate are erected from above the base 88. The leading portion is located at a position slightly higher than the height of the surface plate 22 from the pace 88.

The corner portions of the 23rd plate 12 abut against these reference bins 84 and 86 outside the surface plate.

Furthermore, as shown in FIGS. 9 and 10, the surface plate 2
Reference bins 108 and 110 in the surface plate are arranged so as to be retractable from the upper surface of the surface plate 22. Also, surface plate 2
On the side of the negative sheet supply section 18 of No. 2, a reference bin 112 outside the surface plate is provided so as to be retractable so as not to obstruct the discharge of plates in the C direction. As shown in FIGS. 9 and 10, these reference pins 108 and 110 inside the surface plate and the reference pins 112 outside the surface plate are connected to the 23rd plate 12 for printing the image of the negative film 36 onto one side of the 23rd plate 12. It is used for positioning.

7 Pusher> Also, around the surface plate 22, place the 23rd plate 12 on the reference pin 8 in the surface plate.
2. First pusher 9 that presses against the reference pin 84 outside the surface plate
0 is placed.

As shown in FIGS. 11 and 12, the first pusher 90 includes an air cylinder 92 and a rotating body 94 fixed to the drive shaft of the air cylinder 92.

Air cylinder 92 is rotatably supported on a bracket 98 fixed on support bracket 96 on base 88 . A drive shaft 92A of this air cylinder 92 is inserted into a through hole 100A of a guide plate 100 attached to the side wall of the surface plate 22. A guide piece 102 is attached to the tip of the drive shaft 92A.

This air cylinder 92 is connected to a compressed air supply device 278 via a solenoid valve 280. This solenoid valve 280
Compressed air is supplied to the air cylinder 92 by opening. Solenoid valve 280 is connected to output port 2748 of controller 264 as shown in FIG.

The guide piece 102 has a slope formed on the lower surface side,
It is placed on the slope portion 100B of the guide plate 100 and slides on the slope portion 100B.

One end of a pin 104 that supports the rotating body 94 is fixed to the upper surface side of the guide piece 102. The rotating body 94 is rotatably supported on this pin 104.

Further, a pair of tension coil springs 106 are disposed on both sides of the air cylinder 92, one end of which is fixed to the guide piece 102, and the other end of which is fixed to the support bracket 96. This tension coil spring 106 urges the air cylinder 92 downward. Further, when the air cylinder 92 is not in operation, it is retracted to a position lower than the upper surface of the surface plate 22, as shown by the dashed dotted line in Figure 11. Further, when the air cylinder 92 is operated and the drive shaft protrudes from the main body, the guide piece 102 rises obliquely on the slope, and the rotating body 94 protrudes upward from the surface plate 22.

The side of the PS plate 12 already placed on the surface plate 229 comes into contact with this rotating body 94,
Press the PS plate 12 toward the surface plate white reference pin 82. This positions the PS plate 12. This positioning is performed as shown in FIGS. 9 and 10.
It is detected by a detector 314 and an alignment detector 316. These detectors 314, 316 are connected to the controller 264.
control device 264
Notify that the alignment has been completed.

Further, a second pusher 114 is arranged around the surface plate 22. This second pusher 114 comes into contact with one side of the PS plate 12 in the vertical direction (in the direction of arrow B in FIG. 3 and the opposite direction) and presses the PS plate 12 against the reference pins 84 and 86 outside the surface plate.

As shown in FIG. 13, the second pusher 114 has an air cylinder 118 rotatably supported by a support bracket 116 erected from the base 88. This air cylinder 118 is connected to a compressed air supply device 278 via a solenoid valve 282, as shown in FIG. Compressed air is supplied to the air cylinder 118 by opening the solenoid valve 2082. As shown in FIG. 25, the solenoid valve 282 is
It is connected to the output port 274 of the controller 264.

The drive shaft 118A of this air cylinder 118 is connected to the surface plate 22.
A guide piece 120 is fixed to the tip of the guide plate 126, which is supported on the side surface of the rotating body 1.
24 is supported.

A slope 120A is formed on the lower surface side of the guide piece 120. This slope 120A is in contact with the slope 126A formed on the guide plate 126, and the operation of the air cylinder 118 moves the guide piece 120 onto the slope 126A.
It rises while sliding on 26A.

Further, another guide piece 12'3 is passed through the drive shaft 118A of the air cylinder 118, and the guide piece 123
A protrusion 128 is provided on the lower surface side. This protrusion 1
One end of a tension coil 2 nib ring 130 is fixed to the tip of the coil 28. The other end of the tension coil spring 130 is fixed to the tip of a pole 131 erected on the base 88.

Therefore, the air cylinder 118 is located at the 13th center around the shaft support.
It is biased clockwise in the figure.

Transverse feed device> Also, as shown in Fig. 3, there is a PS on the side of the surface plate 22.
A plate traversing device 132 is arranged.

This PS plate lateral feeding device 132 uses a pusher having the same configuration as the first and second pushers described above, and prints an image on one side of the PS plate 12 as shown in FIGS. 1, 9, and 10. After printing, press P to print the image on the remaining side.
Move the S plate 12 in the direction of arrow B. Also, as shown in FIG.
A lateral feed detector 318 for detecting the end of the frame 11 is attached to the frame 11. This detector 318 is connected to the controller 264.
, and detects that horizontal feeding of the PS version has finished.

<Light Source> 2 As shown in the construction drawings and FIG. 14, a light source 134 is arranged above the surface plate 22. This light source 134 is covered with a light source hood 136. This light source hood 136 consists of two air cylinders 138.1 supported by the frame 11.
40, and is suspended by air cylinders 138 and 140. These air cylinders 138, 140 are connected to a compressed air supply device 278 via solenoid valves 284, 286, as shown in FIG. These solenoid valves 284.28
6 is opened, compressed air flows into the air cylinder 138.14.
0. The solenoid valves 138, 140 are connected to the output port 274 of the controller 264, as shown in FIG.

Further, one end of the light source hood 136 is connected to a guide rod 142 supported by the frame 11. This guide rod 142
The middle portion of the frame 11 is supported by a slide bearing 144 supported by the frame 11 so as to be movable in the vertical direction. Therefore, the light source hood 136 moves up and down in three directions when the air cylinders 138 and 140 operate. Around this light source hood 136, an upper detector 288 and a lower detector 290 are arranged at the upper and lower parts, respectively. These detectors detect the upper and lower positions of the light source hood 136.

These detectors are also connected to the human power port 272 of the controller 264 as shown in FIG.

As shown in FIG. 14, inside the light source hood 136,
A shutter 292 is arranged below the light source 134.

This shack 292 blocks the light from the light source 134 or allows it to pass through, thereby blocking the light onto the surface plate 22 or irradiating the light onto the surface plate 22 . Also, the light source hood 136
A photodetector 320 is placed inside. This photodetector 320 detects the state of image exposure. light detection 32
0 is connected to the control device 264, which detects the exposure state and transmits this result.

Squeeze device> A squeeze device 1 is provided between the surface plate 22 and the light source hood 136.
48 are arranged. As shown in FIGS. 15 and 4-16, a pair of guide rails 150 are arranged parallel to each other on both sides of the surface plate 22 in the width direction (in the direction of arrow B and the opposite direction). The guide rail on one side is omitted in Fig. 16). Slide blocks 152 are fitted into these guide rails 150, respectively, and are movable in the longitudinal direction of the guide rails 150, that is, in the longitudinal direction of the surface plate 22 (in the six directions of arrows in the figure and in the opposite direction).

The middle portions of squeeze arms 154 are supported by pins 155 on the slide blocks 152, respectively.

The other end of the squeeze arm 154 is in contact with a stopper 157. A squeeze roller 156 is pivotally supported between the lower ends of these squeeze arms 154. This squeeze roller 156 is the PS plate 1 placed on the surface plate 22.
Press the negative sheet 24 on 2 to separate the negative sheets 24 and 2.
The air between the 3rd plate 12 and the 23rd plate 12 and the negative sheet 24 are brought into close contact with each other.

A guide 5 inner roller 158 is pivotally supported at the upper end of each squeeze arm 154, and these guide rollers 1
58 is a pair of guides 160 arranged on the top of the surface plate 22
are in contact with each other.

Further, one end of a pair of arms 162 is connected between the lower end of the squeeze arm 154 and the pin 155, respectively. The other end of this arm 162 is a slide block 15
2 is supported on a block 164 which is pivotally supported on the block 164. A compression coil spring 166 is disposed between the block 164 and the arm 162, and urges the tip of the arm 162 downward.

On the other hand, the slide block 152 is connected to a belt 172 that is wound between sprocket wheels 168 and 170. A sprocket wheel 174 is attached to the rotating shaft of the sprocket wheel 168, and a belt 180 is wound between the sprocket wheel 174 and the sprocket wheel 178 attached to the drive shaft 176A of the motor 176.

Therefore, the driving force of the motor 176 is transmitted to the sprocket wheel 174, the sprocket wheel 168 rotates, and the belt 172 is conveyed.

The slide block 15 is conveyed by this belt 172.
2 moves in the length direction of the surface plate 22. As a result, the squeeze roller 156 moves and squeezes the negative sheet 24.

Further, a stopper 221 is provided at a position after the roller has finished moving. This stopper 221 is the squeeze arm 1
54, the squeeze arm 154 swings around the pin 155, and the squeeze roller 156 moves the negative sheet 2.
4. Separate from above.

Negative sheet supply section> Next, the negative sheet supply section 18 will be explained.

As shown in FIG. 1, a holding frame 182 is arranged between the surface plate 22 and the light source 134. Figures 19 to 1
As shown in FIG. 9, this holding frame 182 has a rectangular shape,
The drive shafts of a pair of air cylinders 184 whose drive shafts face downward and are supported by the frame 11 are connected to the earthen wall. Further, one end of a pair of idle rods 186 is connected to the earthen wall of the holding frame 182. This guide rod 18
76 is supported by a slide bearing 188. The bearing 188 is supported by a support plate 190 supported by the frame 11. The operation of the air cylinder 184 causes the holding frame 182 to move up and down in the vertical direction, and also lifts and lowers a negative frame 194, which will be described later. This air cylinder 184
is connected to a compressed air supply device 278 via a solenoid valve 294, as shown in FIG. This solenoid valve 29
4 opens, the compressed air 278 flows into the air cylinder 184.
supplied to Solenoid valve 294 is connected to output port 274 of controller 264 as shown in FIG.

A pair of guide rails 192 having an abbreviated cross-sectional shape are supported at the lower portions of both longitudinal sides of the surface plate 22 of the holding frame 182. A negative frame 194 is arranged between the pair of guide rails 192.

This negative frame 194 has a rectangular shape, and guide plates 196 are provided to protrude from both sides corresponding to the guide rails 192. The guide plates 196 are placed on guide rollers 198 provided so as to protrude from the guide rails 192 in a direction in which they touch each other. As a result, the negative frame 194 is moved to the surface plate 22.
It is movable in the width direction (in the direction of arrow B in the figure and in the opposite direction), and can be pulled out to the outside of the printing plate printing apparatus 10.

Further, a pole cask 200 is in contact with the upper surface of the negative frame 194. This pole caster 200 has a holding frame 18
It is supported at the tip of a slide shaft 202 supported by 2. A compression coil spring 204 is arranged between the pole caster 200 and the holding frame 182, and urges the negative frame 194 downward.

On the other hand, as shown in FIG. 21, a pole caster 203 is placed on a pair of brackets 201 protruding from one side wall of the surface plate 22. As shown in FIG. Furthermore, a bracket 205 is attached to the other side wall, and a pole caster 207 is placed on it.

A roller 208 fixed to the tip of the drive shaft of an air cylinder 206 is in contact with the negative frame 194 . The air cylinder 206 is fixed to the outside of the guide plate 192, and a drive shaft 206A passes through the guide plate 192. This air cylinder 206 is connected to a compressed air supply device 278 via a solenoid valve 296, as shown in FIG. Compressed air is supplied to the air cylinder 206 by opening the solenoid valve 296 . The solenoid valve 296 is connected to the control device 2 as shown in FIG.
64 output port 274. By this operation of the air cylinder 206, the negative frame 194 is moved to the 19th
Moves by being pushed to the left side of the drawing.

As shown in FIG. 18, pimpers 210 and 212 are arranged on the sides of the PS plate 12 in the width direction of the PS plate 12, respectively. A plurality of pins are provided protruding from each of these upper surfaces, and the pinper 21
The pin 214 provided on the pimper 212 is inserted into the through hole 28 provided on the negative sheet 24, and the pin 216 provided on the pimper 212 is inserted into the through hole 30.
support.

A pair of support pins 218 protrude from both sides of the pinper 210, respectively. These support pins 218 are inserted into long holes 220A of a pair of support blocks 220 fixed to the lower part of the negative frame 194, respectively. Therefore, the pimper 210 is movable in the length direction of the surface plate 22.

Further, as shown in FIG. 22, a notch 232 is formed in the intermediate portion of the pimper 210 on the negative frame 194 side.

Inside this notch 232 is a pair of pole casters 234,
The shaft 234B and the spacer 234A are connected to a pair of plates 24
The pole caster 234 is held rotatably around a shaft 234B by inserting the pole caster 234, which is held together by a nut 238. A connecting block 243 fixed to the tip of the drive shaft of the air cylinder 242 is inserted between the pair of plates 240, and the pair of plates 240 are swingably connected by the shaft 236A.

Air cylinder 242 is supported by negative frame 194. This air cylinder 242 is connected to a compressed air supply device 278 via a solenoid valve 298, as shown in FIG. Compressed air is supplied to the air cylinder 242 by opening the solenoid valve 298 . The solenoid valve 298 is connected to the control device 264 as shown in FIG.
is connected to output port 274 of.

On the other hand, a pressing member 244 is attached to the hinge 210 on the pimper 210.
They are connected by 6. One end of a pair of stoppers 248 is supported at the intermediate portion of this holding portion 244 . The other end of this stopper 248 is arranged to close the notch 232. This stopper 248 is connected to a pair of plates 24
0 is prevented from being pulled out from inside the notch 232. As a result, the negative sheet 24 supported by the pimpers 210 and 212 is pulled by the operation of the air cylinder 242, and tension is applied.

As shown in FIG. 18, the pimp 212 has a rectangular notch 224 and a V-shaped notch 226 formed therein. These notches 224 and 226 form a cylindrical positioning cam follower 2 attached to the side of the surface plate 22.
28.230, and when the negative frame 194 moves in the length direction by the operation of the air cylinder 206, the cam follower 228 in the notch 224 moves into the cam follower 23 in the notch 226.
0 is inserted, the negative frame 194 comes into contact with the cam followers 228 and 230 at three points, and positioning in the length direction and width direction can be performed.

Further, as shown in FIG. 22, the pressing member 244 of the pimper 210 is rotated approximately 90 degrees after one end of the negative sheet 24 is supported by the pimper 210, and held between the pimper 210 and the negative sheet 24.
The end of 4 is pressed.

Also, the negative frame 1 arranged in the length direction on the pimper 212 side
A pair of air cylinders 250 are arranged within the air cylinder 94 . These air cylinders 250 are connected to a compressed air supply device 278 via a solenoid valve 300 as shown in FIG.
connected to.

By opening this solenoid valve 300, compressed air is supplied to the air cylinder 250. As shown in FIG. 325, the solenoid valve 300
74.

The end portions of press rollers 252 arranged in the width direction are connected between the drive shafts of these air cylinders 250. An enlarged-diameter portion is formed in the middle of the pressing roller 252, and serves to hold down a pressing member 256 connected by a hinge of the pimp 212.

Further, a pair of handles 253 are attached to the negative frame 194 and are used when pulling out the negative frame 194 from the holding frame 182.

(PS Plate Discharge Unit) A transport roller (not shown) is disposed in the PS plate discharge unit 20 and discharges the PS plate 12 on which the image has been printed to the outside of the plate printing device 10.

Further, a discharge detector 322 is arranged in the frame 11.

This discharge detector 322 is connected to the control device 264, and
The state in which the PS plate 12 is ejected from the apparatus is detected and transmitted to the control device 264.

Control Device> 4 Further, a display device 302 is connected to the output port 274 of the control device 264, as shown in FIGS. 25 and 26. As shown in FIG. 26, this display device 302 includes a plate-making LED 304 indicating that processing is in progress, that is, a state in which an image is being printed onto a PS plate, a power LED 306 indicating whether or not electricity is on, and an emergency stop LED 304. An emergency stop LED 308 indicating trouble (failure within the device) and trouble LED 310 are provided.

Furthermore, a small LED 312 is provided to indicate each processing step of plate feeding, plate feeding carrier, alignment 1, exposure Lm feed, alignment 2, exposure 2, and plate discharge. These small L
The ED 312 is arranged in the order in which the 48 versions 12 are sent, and when the 48 versions 12 are located at each processing step, it is displayed that the 48 versions 12 are present in the processing step.

Therefore, if a trouble occurs in the printing plate printing apparatus 10, it can be easily known that the trouble has occurred when the 48 plate 12 stops.

5 Next, the operation of this embodiment will be explained.

First, the negative frame 194 is pulled out from the holding frame 182, and the negative sheet 24 to which a negative film has been pasted is supported by the pins 214.2↓6 of the pinpers 210.212. From this state, each of the pressing members 244 and 256 is brought down and pressed. From this state, the pair of air cylinders 250 are operated to move the press roller 252 from inside the negative frame 194 onto the press member 256. This ensures that one end of the negative sheet 24 is supported by the negative frame 194.

From this state, the air cylinder 222 is operated to pull the negative sheet 24 and apply tension. At this time, the pimper 2 supporting one end of the negative sheet 24
10 is a shaft 236 movable in the width direction of the negative sheet 24;
Since the negative sheet 24 can be swung around A, no twisting force is applied to the negative sheet when tension is applied, and no wrinkles are generated in the negative sheet 24.

After setting the negative frame 194 and the negative sheet 24, the negative frame 194 is pushed into the lower part of the holding frame 182.

On the other hand, the tip of the plate feeding conveyor 40 is placed near the surface plate 22.

Here, if you turn on the start button (not shown), the second
Initialization is performed in step 400 shown in FIG. 7, and each process waits at an initial position.

At step 402, flag F is set to zero. Plate feeding is started in step 404. This plate feeding operates an auto feeder (not shown) to feed out the 48 plates 12 and insert them between the pair of transport rollers 65. The 48th plate 12 sent out from between the pair of transport rollers 65 is guided onto the plate feeding conveyor 40 by guide rollers 68 and 70. This is detected by the detector 26
2 detects and transmits it to the control device 264. Control device 264
At step 406, the display device 302 is activated to turn on the plate feeding LED 312. This makes it possible to recognize that the 48th version 12 is in the PS version supply section 14.

At this time, if the leading end of the 48 plate 12 is caught on the surface plate 22 and is not conveyed 7, the air cylinder 72 is operated to push the rear end of the 48 plate 12 toward the surface plate by the hooking member 74.

This allows the 48 plates 12 to be reliably conveyed onto the surface plate.

In step 408, when 48 plates 12 are sent onto the surface plate 22, this is detected by the detector 262, and in step 410, the plate feeding carrier LED3↓2 is lit. This makes it possible to confirm that the 48th plate 12 has been fed onto the surface plate 22.

In step 412, it is determined whether the printing onto the 48 plate 12 is on the first side or on the two-sided die. -In case of face,
In step 414, alignment 1 is performed, and the air cylinders 92.118 of the first and second pushers 90.114
The solenoid valves 280 and 284 are opened and activated. As a result, the 48 plate 12 is positioned at the predetermined position shown by the solid line in FIG.

The state of alignment 1 is displayed on the display device 3 in step 416.
Turn on the positioning ILED 02.

This allows the operator to recognize where the 48 plate 12 is being sent to in the plate material printing device 180 and what processing it is undergoing. The detector 3 detects the end of positioning 1.
24 is detected and step 428 is executed.

Next, in step 418, it is determined whether the negative sheet 24 is being supplied. If the negative sheet 24 is not supplied, in step 420 the operator
4 into the negative frame 194.

When the negative sheet 24 is set, the light source hood 136 is lowered in step 422, and when the lower detector 290 detects this, the light from the light source 134 is irradiated onto the PS plate 12 in step 424. In step 426, the display device 3 indicates that this light irradiation, that is, image exposure is to be performed.
02 to turn on the image exposure ILED 312. The image exposure detector 320 detects this, and when the light is irradiated for a predetermined period of time, the light source hood 136 is raised in step 428. The main detector 292 detects this, and step 43
0 is executed.

9. When the light source hood 136 is raised, it is determined in step 430 whether the negative sheet 24 has been removed. When the negative sheet 24 is removed by the operator, it is determined in step 432 whether the flag F is 1 or not. That is, in the case of the second printing, the PS plate l2 is ejected from the surface plate 22 in step 434, the ejection detector 322 detects this ejection state, and the display device 312 is activated in step 436, and the ejection LED 312 is turned on. Light.

If the flag F is O, it is determined again in step 412 whether or not this is the second time. In other words, if flag F is 0, it means that the first page is burned, so step 4
38 and below are executed.

In step 438, the transverse feed device 132 is operated to move the PS plate 12 on the surface plate to the position shown by the chain line in FIG. 9.

In this traverse feed state, in step 440, the display device 302 is activated and the traverse feed display LED lights up. The traverse feed detector 318 detects that this traverse feed is completed, and step 4
42 is executed.

0 In step 442, alignment 2 is performed to align the PS plate 12 to a predetermined position on the surface plate 22. In step 444, the display device 302 operates to indicate the state of alignment 2, and the alignment 2 LED lights up. When alignment 2 is completed, alignment 2 detector 316 detects and executes step 446.

At step 446, flag F is set to 1.

From this state, steps 418 and subsequent steps are executed, and the image recorded on the negative film 36 of the negative sheet 24 is transferred to the PS
It is printed onto the plate 12.

In step 448, it is determined whether or not to continue processing the PS version 12. If the process continues, step 400 and subsequent steps are executed again. If processing is not continued, the process ends.

In this embodiment, the moving state and operating state of the PS version 12 are displayed on the display device 302, so if, for example, a problem occurs during processing and the movement of the PS version 12 is stopped, the problem can be easily detected. The worker can know the location,
Can be easily maintained.

In addition, in this example, the image of the negative film on the transparent sheet (negative sheet) to which the negative film is pasted is transferred to the PS plate 12.
Although an example is shown in which the image is printed on the PS plate 12, the image on the negative film may be printed on the PS plate 12 without attaching the negative film to the transparent sheet.

[Brief explanation of drawings]

1 to 3 show an embodiment of the printing plate printing apparatus according to the present invention. FIG. 1 is a front view, FIG. 2 is a side view, FIG. 3 is a plan view, and FIG. 4 is a perspective view showing a negative sheet. Fig. 5 is a perspective view of the negative sheet shown in Fig. 4 loaded onto the pin bar, Fig. 6 is a side view showing the plate feeding conveyor, Fig. 7 is a side view showing the hooking member, and Fig. 8 is a perspective view of the negative sheet on the surface plate. 9 and 10 are front views showing the suction grooves, FIGS. 9 and 10 are plan views showing the relationship between the PS printing plate placed on the surface plate and the negative sheet, and the position of the reference pin, and FIG. 11 shows the position of the first pusher. 12 is a perspective view showing the first pusher, FIG. 13 is a side view showing the second pusher, FIG. 14(A) is a side view showing the light source, and FIG. 14(B) is a side view showing the light source. 2 A partially cutaway side view showing the inside of the light source hood, Fig. 15 is a side view showing the squeeze device, Fig. 16 is a plan view showing the squeeze device, and Fig. 17 is a plan view showing the positions of the surface plate and the light source hood. Fig. 18
The figure is an exploded perspective view showing the relationship between the negative frame and the holding frame.
The figure is a front view showing the negative frame and holding frame, Fig. 20 is a plan view showing the negative frame, Fig. 21 is a plan view showing the surface plate, Fig. 22 is a perspective view showing the pin bar, and Fig. 23 is a presser roll. 24 is a block diagram showing the connection between the compressed air supply device 278 and the air cylinder, FIG. 25 is a block diagram showing the connection between the control device and other equipment, and FIG. 26 is a front view showing the display device. 27 are flowcharts showing the operation. 10... Plate material printing device, 12... 28th plate, 14... PS plate supply section, 16... Baking section, 18... Negative sheet supply section, 20... PS plate discharge section, 22・・・Surface plate, 3 24 ・ ・ 262 ・ 264 ・ 288 ・ 290 ・ 302 ・ 304 ・ 306 ・ 308 ・ 310 ・ 312 ・ 314 ・ 316 ・ ・Negative sheet, ・・Detector, ・・Control device, ・・Top Detector, ・Lower detector, ・Display device, ・LED during plate making. ...Power LED. ...Emergency stop LED. ...Trouble LED. ...Operating status LED. ...Positioning l detector, ...Positioning 2 detector, 4 318...Transverse feed detector, 320...Image exposure detector, 322...Ejection detector.

Claims (2)

[Claims] (1) A supply section into which printing plates are inserted from the outside of the printing plate printing device, a printing section into which printing plates are conveyed from this supply section, and a printing plate conveyed to this baking section into a predetermined location in the printing section. a positioning device for positioning the negative film onto the printing plate; a negative film supply device for feeding the negative film onto the printing plate; and printing an image recorded on the negative film by irradiating light onto the negative film placed on the printing plate. A plate material printing apparatus comprising an exposure device for printing onto a plate, and a discharge means for discharging the printing plate on which an image has been printed by the exposure device to the outside of the apparatus, The method further comprises: a detection means for detecting the movement of the printing plate and the operating state of the exposure device and the ejecting device; and a display means for displaying the movement of the printing plate and the operating state of the apparatus detected by the detection means. Features of plate material printing equipment. (2) The printing plate printing apparatus according to claim 1, wherein the negative film is supported on a transparent sheet.