JP2003233202A - Controller for conveying sheet material - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a controller for conveying sheet material which reliably performs the drying of sheet material on a drying treatment part without delaying a conveyance speed of the sheet material or lengthening a drying process and, thereby, dissolves the defects on a working part caused by drying insufficiency. <P>SOLUTION: Stopper pin units 158, 160 in accordance with the print sizes are arranged on the positions according to a conveyor belt 154 of punch part 150 of a bender 112, stopper pins 162, 164 in accordance with the print sizes are elongated and the conveyance of photopolymer print 12 by means of the conveyor belt 154 is temporally stopped in order to prevent gum liquid attached to the back end part in the conveyance direction in plenty from being fed into the bender 112 in the state that the gum liquid is not dried. In the stopped state, the back end part of the photopolymer print 12 is the position of ducts 94, 96 of a drying part 20, a drying time on the back end part can be set longer than that on the other part and, therefore, the feeding of the photopolymer print in the undried state into the bender 112 can be prevented. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a treatment liquid treatment section for treating a sheet material having an image recording surface on which an image is recorded with a treatment liquid, and a drying method for drying the sheet material after treatment with the treatment liquid. A developing device having a processing part and a processing part for processing the sheet material are provided adjacent to each other, and a carrying device for automatically carrying the sheet material from the developing processing part side to the processing part. The present invention relates to a sheet material conveyance control device used.

[0002]

2. Description of the Related Art In a sheet material, particularly a photosensitive lithographic printing plate (hereinafter simply referred to as a printing plate), due to the spread of CTP, an image is recorded directly on the printing plate by using a laser beam or the like, and a subsequent development process is performed. A system has been built to continuously and automatically convey processes and post-processing steps.

The printing plates are stacked and accommodated in a cassette, and are separated from the cassette by using a plate feeding device, and are first conveyed to an exposure device.

The exposure device irradiates a laser on the basis of image data input from a PC or the like to form a latent image on the photosensitive surface of the printing plate.

When the image exposure process in the exposure device is completed,
The printing plate is conveyed to the automatic developing device, and while being conveyed at a constant speed,
Brushing is performed while immersing in a developing solution to remove unnecessary portions of the photosensitive layer, and desensitizing treatment is performed by applying a gum solution after washing with water.

After that, the printing plate is sent to the drying section and dried by blowing dry air, but since the constant speed conveyance is continued during this period, immediately after the completion of the drying, punching or bending is performed. It is designed to be sent to the post-processing step for applying.

[0007] As described above, since the entire process from sheet processing of the printing plate to post-processing is carried out automatically, the working efficiency can be improved.

[0008]

However, when the printing plate is dried in the drying unit of the automatic developing apparatus, the drying process is performed under the same conditions from the leading end to the trailing end in the transport direction under constant speed transport. In many cases, the back end of the printing plate is thicker coated with the gum solution, and the back end of the printing plate may be sent to the post-processing step while it is still undried.

In the punching section, which is the first stage of the post-processing step, it is essential to accurately position (suck) the printing plate on the surface plate to perforate the punch holes. If adhered and solidified, it may cause a suction failure at the time of positioning on the surface plate or a conveyance failure.

For this reason, it is sufficient to convey the printing plate at a speed at which the trailing edge of the printing plate can be completely dried. However, since the conveying speed has a great influence on the processing capacity, the conveying speed cannot be slowed down.

Further, although it is possible to lengthen the drying step, the apparatus becomes long, which is disadvantageous in terms of installation space and cost.

In consideration of the above facts, the present invention can surely dry the sheet material in the drying processing section without slowing down the conveying speed of the sheet material or lengthening the drying step, and the undried sheet material is not dried. An object of the present invention is to obtain a sheet material conveyance control device capable of solving the problem in the processing section due to the above.

[0013]

According to a first aspect of the present invention, there is provided a processing liquid processing section for carrying out processing with a processing liquid while conveying a sheet material having an image recording surface on which an image is recorded, and a processing liquid. A development processing section having a drying processing section for drying the sheet material after processing and a processing processing section for processing the sheet material are provided adjacent to each other, and the sheet processing material is processed from the processing liquid processing section side. A sheet material conveyance control device used for a conveying apparatus that automatically conveys the sheet material to the processing section when the sheet material is conveyed to the processing section. A stop means for stopping the conveyance of the sheet material in the state, and a releasing means for canceling the conveyance stop of the sheet material by the stopping means after the conveyance stop of the sheet material by the stopping means is executed for a predetermined time. ing.

According to the first aspect of the invention, when the sheet material is transported to the processing section, the transportation is stopped at a predetermined position by the stop means. At this time, the rear end portion of the sheet material in the conveyance direction remains in the drying treatment portion of the treatment liquid treatment portion, and the rear end portion is dried longer than other portions. As a result, it is possible to reliably dry the processing liquid that is likely to collect in the rear end portion and is difficult to dry.

When a predetermined time elapses after the stop of the conveyance by the stop means, the stop of the conveyance is released by the releasing means. As a result, the normal conveyance of the sheet material is resumed. In this way, the rear end portion of the sheet material can be surely dried only by the delay of the predetermined time, and the adverse effect on the processing portion can be eliminated, so that the work efficiency as a whole is not reduced.

According to a second aspect of the present invention, in the first aspect of the invention, the stop position of the sheet material conveyance by the stopping means can be changed according to the length of the sheet material in the conveyance direction. Is characterized by.

According to the second aspect of the present invention, it is most optimal to use the stopper as the stopping means so that the leading end of the sheet material abuts. Therefore, when the sheet material conveyance lengths are different, It is necessary to appropriately change the position of contact with the tip.

According to a third aspect of the invention, in the second aspect of the invention, the sheet material is a photosensitive lithographic printing plate, and the stopping means are respectively provided in accordance with two kinds of lengths in the conveying direction. It is characterized in that it is provided and the stopping means is selectively applied based on the size information of the photosensitive lithographic printing plate.

According to the third aspect of the invention, when a photosensitive lithographic printing plate is used as the sheet material, it is usually 2L1W.
Size and 2L2W size (L is upside down, W
In the case of processing by the automatic conveyance, there are two types of conveyance direction lengths because the W direction (width direction) is the conveyance direction. Therefore, by previously arranging the stop means at a position corresponding to each size and selectively applying the stop means based on the size information, the rear end portion is stayed in the drying processing unit for a predetermined time according to each size. Can be made.

[0020]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows an automatic developing system 100 according to this embodiment.

The automatic development system 100 includes a photopolymer plate 12 (see FIG. 2) as a photosensitive lithographic printing plate.
A printing plate loading device 102 in which the sheets are stacked and accommodated,
The plate feeding device 104 that conveys the photopolymer plate 12 from the printing plate loading device 102 to the next step, and the photopolymer plate 1 that has been conveyed by the plate feeding device 104.
An exposure device 106 for recording an image on the second photosensitive surface;
An automatic developing device 110 for developing the photopolymer plate 12 on which image recording has been completed by the exposing device 106, a buffer section 108 provided between the exposing device 106 and the automatic developing device 110, and an automatic developing device. The photopolymer plate 12 developed by 110 includes a bender 112 that punches or bends the photopolymer plate 12 at a predetermined position, and a stocker 114 that holds the photopolymer plate 12 discharged from the bender 112.

In the automatic developing system 100, particularly in the automatic developing device 110, a gum is used for immersing the photopolymer plate 12 in a processing solution such as a developing solution or washing water, or for desensitizing the photosensitive surface after the development processing. Treatment with a liquid such as coating with a liquid is included. Therefore, at the final stage of the automatic developing device 110, as shown in FIG.
Is provided, and after the photopolymer plate 12 is dried, the photopolymer plate 12 is sent to the vendor 112 which is the next step.

The feature of this embodiment is that the photopolymer plate 12 between the automatic developing device 110 and the bender 112.
2 to 4, the final step of the automatic developing device 110, the drying section 20 and the receiving section of the photopolymer plate 12 in the bender 112 will be mainly described in detail below.

As shown in FIG. 2, the automatic developing device 110.
Are classified into a preprocessing unit 200 and a development processing unit 10.

In the pretreatment section 200, the photopolymer plate 12 is subjected to preheating treatment and prewashing treatment prior to the developing treatment.

The development processing section 10 includes a photopolymer plate 12
With a developing solution, a washing section 16 for supplying washing water to the photopolymer plate 12 treated with the developing solution to wash with water, and a photopolymer plate 12 after washing with a gum for protecting the plate surface. A desensitization processing section 18 for applying a liquid to perform desensitization processing and a drying section 20 for drying the photopolymer plate 12 are provided. That is, the automatic developing device 10 includes a developing step, a water washing step, and a developing step along the conveying direction of the photopolymer plate 12 (arrow A in FIG. 2).
The desensitizing process and the drying process are sequentially arranged.

The desensitizing section 18 is provided with a conveying roller pair 70 above the desensitizing tank 28, and the photopolymer plate 12 is nipped by the conveying roller pair 70 and conveyed.

Further, a spray pipe 72 is provided on the upper side of the transport path for the photopolymer plate 12, and a spray pipe 74 is provided on the lower side of the transport path. The spray pipes 72, 74 are arranged vertically with the longitudinal direction (axial direction) extending along the width direction of the photopolymer plate 12 with the transport path of the photopolymer plate 12 interposed therebetween.

The desensitizing tank 28 stores a gum solution used to protect the plate surface of the photopolymer plate 12, and the gum solution is supplied to the spray pipes 72 and 74 in synchronization with the conveyance of the photopolymer plate 12. To be done. Spray pipe 7
In No. 2, the gum solution is dropped onto the photopolymer plate 12 and spread on the surface of the photopolymer plate 12 to be applied. Further, the spray pipe 74 discharges the gum solution from the discharge hole toward the back surface of the photopolymer plate 12, and applies the gum solution to the back surface of the photopolymer plate 12.

The application of the gum solution to the back surface is not always necessary in the case of a single-sided photosensitive material (sensitive material only on the front surface).

The photopolymer plate 12 has protective films formed by the gum solution applied to the front and back surfaces.

The photopolymer plate 12 to which the gum solution is applied in the desensitizing section 18 is sandwiched by the pair of conveying rollers 70 and a little gum solution remains on the front and back surfaces (state where gum solution remains as a thin film). ) Is sent to the drying unit 20.

In the drying section 20, in the vicinity of the insertion opening 84,
A support roller 86 that supports the photopolymer plate 12 is disposed, and a transport roller pair 90 and a transport roller pair 92 are disposed near the center of the photopolymer plate 12 in the transport direction and in the vicinity of the discharge port 88. There is. Photopolymer plate 12
Are transported in the drying unit 20 by the support roller 86 and the transport roller pairs 90 and 92.

Ducts 94 and 96 are arranged between the support roller 86 and the conveying roller pair 90 and between the conveying roller pair 90 and the conveying roller pair 92 with the conveying path of the photopolymer plate 12 interposed therebetween. Has been done. The ducts 94 and 96 are arranged with the longitudinal direction extending along the width direction of the photopolymer plate 12, and slit holes 98 are provided in the surface of the photopolymer plate 12 facing the transport path.

When the dry air generated by the dry air generating means (not shown) is supplied to the ducts 94 and 96 from one end side in the longitudinal direction, the dry air is supplied from the slit holes 98 to the conveying path of the photopolymer plate 12. It is discharged toward and sprayed on the photopolymer plate 12. As a result, the gum solution applied to the front and back surfaces of the photopolymer plate 12 is dried to form a protective film.

As shown in FIG. 3, the bender 112 is provided with a punch section 150 and a plate bending section 152 along the conveying direction of the photopolymer plate 12. Each of the punching section 150 and the plate bending section 152 is provided with a plurality of parallel narrow conveying belts 154 and 156 at predetermined intervals along the conveying direction of the photopolymer plate 12. By driving the conveyor belt 154,
Photopolymer plate 1 received from automatic processor 110
2 is conveyed in order of the punch section 150 and the plate bending section 152.

FIG. 4 shows a drying section 20 of the developing processing section 10.
And the receiving portion of the bender 112 (upstream side of the punch unit 150) is shown.

The conveying roller pair 92 has a structure in which the lower roller has a driving force and the upper roller has a skewered shape so as to rotate freely. Therefore, even if the photopolymer plate 12 is stopped, the conveying roller pair 92 is not stopped and the image recording surface side of the photopolymer plate 12 is not rubbed.

The photopolymer plate 12 inserted into the bender 112 is first conveyed by the conveyor belt 154 of the punch section 150.
The conveyor belt 154 is placed on the carriage and is conveyed by the conveying force of the conveyor belt 154.

In the punch section 150, two stopper units 1 are provided along the conveying direction of the conveyor belt 154.
58 and 160 are provided. The stopper units 158 and 160 are stopper pins 1 that interfere with the tip of the photopolymer plate 12 conveyed from the development processing section 10.
62 and 164 are provided respectively, and the transport of the photopolymer plate 12 can be stopped by bringing the tip of the photopolymer plate 12 into contact with the stopper pin 162 or 164.

The stopper pin unit 158 on the upstream side in the conveying direction is for 2L1W, which is one of the sizes of the photopolymer plate 12, and the stopper pin unit 160 on the downstream side is for 2L2W.

Here, when the photopolymer plate 12 is in contact with the stopper pin 162 or 164 and the conveyance is stopped, the rear end of the photopolymer plate 12 is at the duct 94 of the drying section 20 of the development processing section 10. , 96.

Hereinafter, the two stopper pin units 15
8 and 160 have the same structure, only one of them will be explained.
The other part is given the same reference numeral and the description thereof is omitted.

As shown in FIGS. 4 and 5, the stopper pin 162 (164) expands and contracts depending on the excitation / non-excitation of the solenoid 166. Solenoid 166
Are mounted on the slide base 168. The right side of FIG. 4 of the slide base 168 is the limit switch 1
It is formed integrally with a box 172 that accommodates 70.

The solenoid 166 is the slide base 16
8, it is possible to approach and separate from the limit switch 170, and between the side wall of the box 172,
A compression coil spring 174 is provided. This allows
The solenoid 166 is normally located farthest from the box 172 due to the biasing force of the compression coil spring 174.

A belt 176 is provided on the outer circumference of the solenoid 166, and a circular hole 178 is formed at the right end portion thereof. The circular hole 178 accommodates a pin 180 protruding from the box 172 and capable of switching the contact point of the internal limit switch 170. The pin 180 can move within the long hole 182 formed in the box 172. Therefore, the pin 180 moves according to the position of the solenoid 166, and the contact of the limit switch 170 can be switched.

The solenoid 166 is connected to the controller 184.
Excited / de-excited state can be obtained according to the signal from. Further, the limit switch 170 is connected to the controller 184 and sends a signal as position information of the solenoid 166.

The controller 184 includes a development processing unit 10
The size (plate type) information of the photopolymer plate 12 that has been processed in step 1 and then conveyed to the vendor 112 is input.

In the controller 184, the stopper pin 162 (or 164) of the required stopper pin unit 158 (or 160) is extended (excited) based on this size information, and the unnecessary stopper pin unit 160 (or 158) is generated. The stopper pin 164 (or 162) is controlled so as to be pulled (non-excited).

That is, when the size information is 2L1W, only the solenoid 166 of the stopper pin unit 158 on the upstream side (left side in FIG. 4) in the transport direction is excited to extend the stopper pin 162.

In this state, when the photopolymer plate 12 is conveyed and the leading end contacts the stopper pin 162, the solenoid 166 causes the compression coil spring 1 to move through the stopper pin 162 by the conveying force of the photopolymer plate 12.
It slides along the slide base 168 against the biasing force of 74, and approaches the box 172. By this approach, the contacts of the limit switch 170 are switched, and it becomes possible to recognize that the photopolymer plate 12 has come into contact with the stopper pin 162. When the stopper pin 162 is extended, the photopolymer plate 12
Will be stopped. At this time, the rear end portion of the photopolymer plate 12 is in the drying portion 20, and the dry air is blown to it for a longer time than other portions.

A timer 186 is built in the controller 184, and a predetermined time (in the present embodiment, 5 seconds) from the time of contact with the stopper pin 162 of the photopolymer plate 12 (switching of the contact of the limit switch 170). After a lapse of about 10 seconds to 10 seconds, the solenoid 166 is brought into a non-excited state. As a result, the photopolymer plate 12 can start to be conveyed.

On the other hand, when the size information is 2L2W,
Only the solenoid 166 of the stopper pin unit 160 on the downstream side (right side in FIG. 4) in the transport direction is excited to extend the stopper pin 164.

In this state, when the photopolymer plate 12 is conveyed and the front end contacts the stopper pin 164, the solenoid 166 causes the solenoid 166 to slide through the stopper pin 164 by the conveying force of the photopolymer plate 12.
Slide along 68 to approach box 172.
Due to this approach, the contacts of the limit switch 170 are switched, and the photopolymer plate 12 is stopped by the stopper pin 164.
It is possible to recognize that the contact with the. When the stopper pin 164 is extended, the photopolymer plate 12 is stopped from being conveyed.
2L, similar to the L1W size photopolymer plate 12
The rear end portion of the 2 W-sized photopolymer plate 12 is located in the drying portion 20, and the drying air is blown to it for a longer time than other portions.

The operation of this embodiment will be described below.

In the pretreatment device 200, the image-exposed photopolymer plate 12 is conveyed while being heated, and then the cleaning water is supplied while being brushed by the cleaning water and the brush roller. As a result, the uppermost overcoat layer of the photopolymer plate 12 is swollen and easily peeled off.

The photopolymer plate 12 thus brushed to remove the overcoat layer is sent to the development processing section 10.

In the development processing section 10, the photopolymer plate 12 on which an image is recorded by being exposed by an image exposure device such as a printing device (not shown) is immersed in a developing solution to be developed and an exposed image is obtained. Accordingly, the unwanted photosensitive layer is removed from the support. At this time, the surface of the photopolymer plate 12 (the surface on the photosensitive layer side) is brushed by the brush roller to promote the removal of the unnecessary photosensitive layer from the surface of the photopolymer plate 12.

Photopolymer plate 12 subjected to development processing
Is sent to the desensitization processing unit 18 after being washed with washing water.

The photopolymer plate 12 sent to the desensitizing section 18 passes between the spray pipes 72 and 74, is coated with the gum solution, and is sandwiched by the pair of conveying rollers 70. From the fatification processing unit 18 to the drying unit 20
Sent to.

In the drying section 20, while the photopolymer plate 12 is being conveyed by the support roller 86 and the pair of conveying rollers 90 and 92, dry air is blown from the ducts 94 and 96 to the front and back surfaces of the photopolymer plate 12. As a result, the photopolymer plate 12 has a protective film formed by the gum solution applied on the surface and is discharged from the discharge port 88.

The photopolymer plate 12 discharged from the drying unit 20 is subsequently sent to the bender 112, and a predetermined punch hole is formed in the vertical direction of the photopolymer plate 12 by the punch unit 150 and the plate bending unit 152. Thus, the photopolymer plate 12 is bent in the vertical direction into a predetermined shape.

By the way, the photopolymer plate 12 which passes through the drying section 20 and reaches the bender 112 is basically in a state where the gum solution is dried by sufficient drying.
The gum solution may adhere to the rear end portion of the photopolymer plate 12 in the transport direction more than other portions, and a small amount of the gum solution may remain without being dried. If it is conveyed to the bender 112 as it is, problems such as soiling the conveyor belt 154 occur. Therefore, in the present embodiment, the photopolymer plate 12 is conveyed at a predetermined position, that is, the photopolymer plate 12 is conveyed so that the rear end portion of the photopolymer plate 12 in the conveyance direction is dried more than other portions. The rear end in the direction is controlled to stop at the positions of the ducts 94 and 96. Hereinafter, the conveyance control procedure for transferring the photopolymer plate 12 from the drying unit 20 to the conveyance belt 154 in the punch unit 150 of the bender 112 will be described with reference to the flowchart of FIG. 6.

First, in step 300, the solenoid 16 of each stopper pin unit 158 (160) is
6 is de-excited and the stopper pin 162 (164) is moved to the retracted position.

At the next step 302, the plate size is recognized from the inputted plate size information.

In step 302, the plate size is 2L1W.
If it is determined that the target is controlled, the control target is set to the stopper pin unit 158 on the upstream side in the transport direction, and the process proceeds to step 306.

On the other hand, when it is determined in step 302 that the plate size is 2L2W, the process proceeds to step 308 to set the control target to the stopper pin unit 160 on the downstream side in the transport direction, and then proceeds to step 310. (2L
1W size control) In step 306, the Solenod 1
66 is excited to extend the stopper pin 162 on the upstream side. As a result, the stopper pin 162 is attached to the conveyor belt 1.
It can be above 54, and can be at a position where it interferes with the path of the transport path.

At the next step 312, it is judged if the contacts of the limit switch 170 have been switched. That is, the tip of the photopolymer plate 12 sent from the drying unit 20 of the development processing unit 10 contacts the stopper pin 162 (see FIG. 5A), and the photopolymer plate 12
When the stopper pin 162 is pressed by the conveying force of
The solenoid 166 slides on the slide base 168 against the biasing force of the compression coil spring 174. The pin 180 connected to the belt 176 by this slide
Can be moved to switch the contact of the limit switch 170 (see FIG. 5B).

When a positive determination is made in step 312, it is determined that the tip of the photopolymer plate 12 has come into contact with the stopper pin 162, and the process proceeds to step 314 and the timer 18
6 is reset / started, and the process proceeds to step 318. A predetermined time (5 seconds to 10 seconds) is set by the timer 186.
When the second) is counted, an affirmative decision is made in step 316, and the routine moves to step 318. During this predetermined time, the photopolymer plate 12 will be stopped from being conveyed.
At this time, the rear end portion of the photopolymer plate 12 is the drying portion 20.
The ducts 94, 96 are located at the positions of the ducts 94, 96, and receive more dry air than other parts. That is, the gum solution is accumulated at the rear end of the photopolymer plate 12 and is difficult to dry. Therefore, by blowing a large amount of dry air to the rear end portion, it is possible to surely dry the air.

At step 318, the timer 186 is stopped, then the routine proceeds to step 320, and the solenoid 166 is de-energized. As a result, the stopper pin 162 on the upstream side is pulled in (see FIG. 5C). As a result, the stopper pin 162 is retracted from the conveyance path of the photopolymer plate 12, so that the photopolymer plate 12 can be resumed.

On the other hand, when the solenoid 166 is released from the interference with the photopolymer plate 12, the solenoid 166 slides on the slide base 168 by the urging force of the compression coil spring 174 and returns to its original position (FIG. 5 (D)). )reference). Here, when the same size is subsequently conveyed, FIG.
The stopper pin 162 extends as shown in FIG. (Control of 2L2W Size) In step 310, the solenoid pin 166 is excited to extend the stopper pin 164 on the downstream side. As a result, the stopper pin 16
4 can be located above the conveyor belt 154 and can be located at a position where it interferes with the trajectory of the conveyor path. At this time, the stopper pin unit 158 on the upstream side in the carrying direction
Since the stopper pin 162 is in the retracted state, it does not affect the conveyance of the photopolymer plate 12.

At the next step 322, it is judged whether or not the contacts of the limit switch 170 are switched. That is, the tip of the photopolymer plate 12 sent from the drying unit 20 of the development processing unit 10 contacts the stopper pin 164 (see FIG. 5A), and the photopolymer plate 12
When the stopper pin 164 is pressed by the carrying force of
The solenoid 166 slides on the slide base against the biasing force of the compression coil spring 174. This slide moves the pin 180 connected to the belt 176, and the contact of the limit switch 170 can be switched (see FIG. 5B).

If an affirmative decision is made in step 322, it is decided that the tip portion of the photopolymer plate 12 has come into contact with the stopper pin 164, and the routine moves to step 324 and the timer 18
Reset and start 6. When the timer 186 counts the predetermined time (5 seconds to 10 seconds), an affirmative decision is made in step 326, and the routine proceeds to step 328. Although the conveyance of the photopolymer plate 12 is stopped for the predetermined time, the rear end portion of the photopolymer plate 12 at this time is located at the ducts 94 and 96 of the drying unit 20, and is dried more than other portions. You will receive a lot of wind.
That is, the gum solution is accumulated at the rear end of the photopolymer plate 12 and is difficult to dry. Therefore, by blowing a large amount of dry air to the rear end portion, it is possible to surely dry the air.

At step 328, the timer 186 is stopped, then the routine proceeds to step 330, where the solenoid 166 is de-energized. As a result, the stopper pin 164 on the downstream side is pulled in (see FIG. 5C). As a result, the stopper pin 164 is retracted from the transport path of the photopolymer plate 12, so that the photopolymer plate 12 can resume the transport.

On the other hand, when the solenoid 166 is released from the interference with the photopolymer plate 12, the solenoid 166 slides on the slide base 168 by the urging force of the compression coil spring 174 and returns to the original position (see FIG. )reference). Here, when the same size is subsequently conveyed, FIG.
The stopper pin 164 extends as shown in FIG.

As described above, in the present embodiment,
In the photopolymer plate 12 that is dried in the drying unit 20 and then sent to the bender 112, in order to prevent the gum solution that is much adhered to the rear end in the transport direction from being sent to the bender 112 without being dried, the bender 112 is used. At the position corresponding to the conveyor belt 154 of the punch unit 150 of the stopper pin unit 1 according to the plate size.
58 and 160 are provided, the stopper pins 162 and 164 corresponding to the plate size are extended, and the conveyance of the photopolymer plate 12 by the conveyance belt 154 is temporarily stopped. In this stopped state, the rear end of the photopolymer plate 12 is at the position of the ducts 94 and 96 of the drying unit 20, and the drying time of the rear end can be made longer than that of the other parts, and the bender is not dried. Feeding into 112 can be prevented.

In this embodiment, the stopper pin units 158 and 160 are used to make the photopolymer plate 12
Although the conveyance of the conveyance belt 154 is stopped, a detection switch for detecting the leading end of the photopolymer plate 12 may be provided at the position of the stopper pin units 158 and 160 to stop the driving of the conveyance belt 154. In addition, the automatic developing device 1
You may make it stop only the conveyance of 10.

[0078]

As described above, according to the present invention, it is possible to surely dry the sheet material in the drying processing section without slowing the conveying speed of the sheet material or lengthening the drying process. It has an excellent effect of being able to eliminate a defect in the processing section due to drying.

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram of an automatic developing system according to the present embodiment.

FIG. 2 is a schematic view of an automatic developing device.

FIG. 3 is a schematic diagram of a vendor.

FIG. 4 is an enlarged view of a photopolymer plate transfer unit between a drying unit of a development processing unit and a vendor receiving unit.

FIG. 5 is a front view showing an operating state of a stopper pin unit.

FIG. 6 is a control flowchart showing a routine for controlling conveyance and stop of a photopolymer plate between a drying unit and a bender unit.

[Explanation of symbols]

10 Development section 12 Photopolymer plate 14 Development Department 16 Washing department 18 Desensitizing section 20 Drying section 92 Conveyor roller pair 94, 96 duct 100 automatic development system 110 Automatic development device 112 vendors 150 punch section 154 Conveyor belt 158, 160 Stopper pin unit 162,164 Stopper pin 166 Solenod 168 slide base 170 limit switch 172 Box 174 Compression coil spring 176 belt 178 circular hole 180 pins 182 long hole 184 controller 186 timer

Claims (3)

[Claims] 1. A development comprising a processing liquid processing section for processing with a processing liquid while conveying a sheet material having an image recording surface on which an image is recorded, and a drying processing section for drying the sheet material after processing with the processing liquid. A sheet material transfer control used in a transfer device in which a processing section and a processing section for processing the sheet material are provided adjacent to each other, and the sheet material is automatically transferred from the developing processing section side to the processing section. In the apparatus, when the sheet material is conveyed to the processing section, a stop means for stopping the conveyance of the sheet material in a state where the rear end of the sheet material is located in the drying processing section, A sheet material conveyance control device comprising: a releasing means for releasing the sheet material conveyance stop by the stopping means after the sheet material conveyance stop by the stopping means is executed for a predetermined time. 2. According to the length of the sheet material in the conveying direction,
2. The sheet material conveyance control device according to claim 1, wherein the sheet material conveyance stop position by the stop means can be changed. 3. The sheet material is a photosensitive lithographic printing plate, and the stopping means are respectively provided according to two kinds of lengths in the transport direction, and the stopping means is the size information of the photosensitive lithographic printing plate. The sheet material conveyance control device according to claim 2, wherein the sheet material conveyance control device is selectively applied based on the above.