JP2000003048A - Photosensitive material processing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To efficiently purify washing liquid by filtering a processing liquid in a 1st reservoir part which is contaminated due to contact with photosensitive material, and then collecting it in a 2nd reservoir part. SOLUTION: A developing device performs processing by spraying the washing liquid from the above part of a printing plate. The device is equipped with a carrying roller for carrying the printing plate, a washing shower pipe 29, the 1st reservoir part 25a, a circulation piping 55, the 2nd reservoir part 25b, a liquid feed piping 54 and a replenishing piping 55. The pipe 29 is positioned above the printing plate and discharges the washing liquid. The 1st reservoir part 25a is provided below the pipe 29 and receives the washing liquid flowing down. The piping 53 filters the washing liquid in the 1st reservoir part 25a. The filtered washing liquid is reservoired in the 2nd reservoir part 25b. Through the piping 54, the washing liquid in the 2nd reservoir part 25 is fed to the pipe 29. Through the piping 55, the 2nd reservoir part 25b is replenished with the new washing liquid.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a photosensitive material processing apparatus, and more particularly to a photosensitive material processing apparatus which performs processing by spraying a processing liquid from above a photosensitive material being conveyed by a conveying means.

[0002]

2. Description of the Related Art As a photosensitive material processing apparatus, for example, a developing apparatus for automatically developing a photosensitive printing plate (hereinafter, referred to as a printing plate) is provided. The development device includes a development processing unit that develops the printing plate on which the printing process has been performed;
A washing section for washing the developed printing plate with water, a finishing section for applying a gum solution or a rinsing liquid to the washed plate, and a drying section for drying the processed printing plate. Have. The printing plate is subjected to each of the above-described processes while being transported by a transport roller along a predetermined transport path provided inside the apparatus.

[0003] Among them, the washing section generally includes a discharge section for spraying the cleaning liquid onto the printing plate and a storage tank for collecting the cleaning liquid flowing down below the discharge section, and is collected by the storage tank. The used washing liquid is repeatedly used while being filtered. FIG. 5 shows an example of the configuration of a conventional water washing section. Here, the cleaning liquid sprayed on the printing plate from the nozzle 91 a of the shower pipe 91 flushes sludge on the printing plate and flows down to the storage tank 92. The cleaning liquid in the storage tank 92 is supplied to the pump 93a and the filter 9
3b is forcibly circulated through the filtration circuit 93,
Sludge contained in the washing liquid is constantly filtered. When the cleaning liquid is sprayed from the shower pipe 91 onto the printing plate, the cleaning liquid is supplied from the storage tank 92 by the pump 94a.
b is provided, and the cleaning liquid filtered by the filter 94b is supplied to the shower pipe 91 and the nozzle 91a
The problem of clogging is suppressed. The storage tank 92 is provided with a replenishing pipe 95 for replenishing a cleaning liquid which evaporates or is carried out by the printing plate, and an overflow pipe 96.
Is attached. In addition, a heater 97 is disposed near a joint portion of the storage tank 92 with the supply pipe 94 to adjust the temperature of the cleaning liquid supplied to the shower pipe 91.

[0004]

In the case of the above-described structure of the water washing section, first, two filters (the filter 9) are used.
3b, 94b) must be installed. Further, when the filter 94b is clogged, the discharge amount of the cleaning liquid from the shower pipe 91 to the printing plate is reduced unexpectedly. Therefore, in order to stabilize the discharge amount, it is necessary to appropriately clean or replace the filter 94b in accordance with the processing amount of the printing plate. However, it is time-consuming and requires the installation of a pressure gauge and the like, which is expensive.

On the other hand, in the case of the configuration of the water washing section as shown in FIG. 5, the washing liquid blown out from the shower pipe 91 and flowing down falls from a predetermined height onto the liquid surface of the storage tank 92, so that the evaporation amount is large. Also, there is a problem of foaming.
It is an object of the present invention to provide a photosensitive material processing apparatus capable of efficiently cleaning a processing liquid, and further to suppress evaporation and bubbling of the processing liquid.

[0006]

According to a first aspect of the present invention, there is provided a photosensitive material processing apparatus which performs processing by spraying a processing liquid from above photosensitive material being conveyed by a conveying means. A discharge unit, a first storage unit, a filtration unit, and a second storage unit.
The storage device includes a storage unit, a liquid sending unit, and a replenishing unit. The transport unit transports the photosensitive material. The discharge unit is located above the photosensitive material conveyed by the conveyance unit, and discharges the processing liquid. The first storage unit is provided below the discharge unit, and receives the processing liquid that has flowed down. The filtering unit filters the processing liquid stored in the first storage unit. The second storage unit stores the processing liquid filtered by the filtering unit. The liquid sending means is
The processing liquid in the second storage section is sent to the discharge section. The replenishment means
A new processing solution is replenished to the second storage unit.

Here, two storage sections for the processing liquid are provided, and the degree of contamination of the processing liquid in each of them is separated to improve the efficiency of cleaning the processing liquid. The processing liquid discharged from the discharge unit and sprayed on the photosensitive material flows down to the first storage unit. The processing liquid in the first storage unit that is contaminated by contact with the photosensitive material is filtered by the filtering unit and then stored in the second storage unit. Then, since the filtered processing liquid in the second storage unit is sent to the discharge unit by the liquid sending unit, the discharge unit is clogged and the discharge amount of the processing liquid from the discharge unit decreases. Will be resolved. In addition, since the filtered processing liquid is stored in the second storage section, it is almost unnecessary to use a filtering means such as a filter when the liquid is sent from the second storage section to the discharge section.

In addition, since the replenishment of the new processing liquid is performed to the second storage section by the replenishment means, the efficiency of cleaning the second storage section is improved as compared with the case where the replenishment is performed to the first storage section. Thus, in the invention according to the present invention, since the two storage portions for the processing liquid are provided, the cleaning of the processing liquid can be performed efficiently.

According to a second aspect of the present invention, in the apparatus for processing a photosensitive material according to the first aspect, the filtering means comprises: a circulation path;
It has a circulation means and a filter. The circulation path is
This is a path connecting the first storage section and the second storage section, and has a suction port. The suction port of the circulation path is disposed at a position separated from the bottom where the height of the first storage section is the lowest by a predetermined distance. The circulation means and the filter are provided in the circulation path.

Here, the processing liquid flows from the first storage section to the second storage section via the circulation path by the circulation means. Then, the processing liquid flowing through the circulation path is filtered by the filter. Here, the suction port of the circulation path is the first port.
It is arranged not at the bottom of the storage part but at a location separated from the bottom by a predetermined distance upward (for example, near the center or upper part of the liquid layer of the first storage part). For this reason, it becomes difficult for the contaminants contained in the processing liquid, such as sludge, in the first storage unit, which easily precipitate, to flow into the circulation path. That is, by arranging the suction port to some extent above, the processing liquid in the relatively high-purity portion in the first storage section is selectively sucked into the circulation path, and the load on the filter in the circulation path is reduced. Cleaning and replacement are reduced.

According to a third aspect of the present invention, there is provided the photosensitive material processing apparatus according to the first or second aspect, further comprising a processing liquid receiving member. In this device, the first storage unit and the second storage unit are both arranged below the discharge unit. Also,
The processing liquid receiving member is provided below the discharge unit, and causes the processing liquid flowing down from the discharge unit to flow only into the first storage unit.

In this case, since the first storage section and the second storage section are arranged below the discharge section, if no treatment is performed, the processing liquid contaminated by contacting the photosensitive material may be stored in the first storage section. It flows down to the second storage part as well as the part. In this case, the cleanliness of the processing liquid in the second storage unit is reduced, and clogging in the discharge unit immediately occurs. However, in the apparatus according to the present invention, the processing liquid receiving member is provided below the discharge unit so that the processing liquid flowing down from the discharge unit flows down only to the first storage unit. Therefore, the processing liquid contaminated by contacting the photosensitive material does not flow down to the second storage section, and the cleanliness of the second storage section can be ensured.

The processing liquid does not flow directly from the discharge section to the first storage section, but flows from the discharge section to the first storage section via the processing liquid receiving member. This allows
Evaporation of the processing liquid and bubbling in the first storage section are suppressed. According to a fourth aspect of the present invention, in the apparatus for processing a photosensitive material according to the third aspect, the processing liquid receiving member has a shape in which an upper portion is opened upward and a lower portion is converged, and an opening lower than the upper opening. Has a smaller opening area.

Here, the processing liquid flowing down from the discharge unit is
The liquid enters the processing liquid receiving member through the upper opening of the processing receiving member, is collected at the lower part of the converging shape, and flows down to the first storage part from the lower opening. In this manner, the processing liquid receiving member receives the processing liquid at the upper opening and allows the processing liquid to flow down from the lower opening having a smaller opening area to the first storage unit.
The portion of the first storage section where the treatment liquid flows down is limited, and bubbling is further reduced.

Further, since the processing liquid flows along a shape converging downward in the processing liquid receiving member, evaporation and bubbling are suppressed even in the processing liquid receiving member. In the apparatus described in Item 4, the processing liquid receiving member may be configured such that the lower opening is below the liquid level of the processing liquid in the first storage section, or the lower opening is in the liquid level of the processing liquid in the first storage section. It is at an adjacent height.

In this case, the lower opening of the processing liquid receiving member is disposed below the liquid level of the processing liquid in the first storage section, and the processing liquid flowing down from the lower opening and the liquid level of the first storage section are arranged. To prevent foaming by avoiding the collision of the first storage part, or by disposing the lower opening at a height position close to the liquid level of the first storage part, the processing liquid flowing down from the lower opening and the first storage part Foaming is further suppressed by reducing the impact at the time of collision with the liquid surface. Either of them can be selected, but due to fluctuations in the liquid level of the first storage section, the opening at the lower part of the processing liquid receiving member is lower than the processing liquid level of the first storage section in a certain time zone. The lower opening may be located at a height close to the liquid level of the first storage part in a certain time zone.

According to a sixth aspect of the present invention, in the apparatus of the fifth aspect, the height position of the suction port of the circulation path in the first storage section is the height of the lower opening of the processing liquid receiving member. It is set higher than the position. Here, since the suction port of the circulation path is arranged at a position higher than the opening of the lower part of the processing liquid receiving member, the first opening from the lower opening.
The processing liquid containing the contaminant that has flowed down to the storage section is not sucked into the suction port unless it rises in the first storage section.
However, contaminants that tend to precipitate are less likely to be sucked into the suction port located at a position higher than the lower opening, and are less likely to flow into the circulation path leading to the second storage unit. As a result, the burden on the filter in the circulation path is reduced, and cleaning and replacement are reduced.

According to a seventh aspect of the present invention, in the photosensitive material processing apparatus according to the fourth or fifth aspect, a flow guiding wall is provided in the first storage section. The flow guiding wall is provided between the suction port of the circulation path and the lower opening of the processing liquid receiving member. The flow of the processing liquid from the suction port of the circulation path to the lower opening of the processing liquid receiving member is provided. Pass through the vicinity of the bottom of the first storage section.

In this case, since the flow guide wall is provided between the suction port of the circulation path and the lower opening of the processing liquid receiving member, contaminants flowing down from the lower opening to the first storage section are contained. The processing liquid does not flow to the vicinity of the suction port unless it passes near the bottom of the first storage part. And the processing liquid which rises near the suction port through the vicinity of the bottom of the first storage section,
Most of the contaminants that easily precipitate are contained near the bottom. Therefore, the contaminants are less likely to be sucked into the suction port, and the contaminants are less likely to flow into the circulation path leading to the second storage unit. As a result, the burden on the filter in the circulation path is reduced, and cleaning and replacement are reduced.

[0020]

DESCRIPTION OF THE PREFERRED EMBODIMENTS First Embodiment (Structure) FIG. 1 shows a developing device (photosensitive material processing device) according to an embodiment of the present invention. The developing device mainly includes a developing device main body 1, an insertion tray 2 provided on one side of the developing device main body 1, and a plate receiving table 3 provided on the other side of the developing device main body 1. . Developing device body 1
A middle insertion portion 4 is provided on the upper side of the insertion tray 2.

On one side of the developing device main body 1, there is provided an insertion opening 1a for introducing a printing plate (photosensitive material) from the insertion tray 2 into the device main body, and on the other side, a processed printing plate. A discharge port 1b for discharging the plate to the plate receiver 3 is provided. Further, the intermediate insertion portion 4 of the developing device main body 1 is provided with an intermediate insertion port 1c for inserting a printing plate halfway. The inside of the developing device main body 1 has an insertion port 1
In order from the a side, an introduction unit 10, a development processing unit 11, a rinsing processing unit 12, a finishing processing unit 13 for performing a gum solution processing or a rinsing liquid processing, and a drying processing unit 14 are provided.

<Introduction Section> The introduction section 10 includes the insertion tray 2
A pair of transport rollers 15 for carrying a printing plate inserted through the insertion opening 1a into the apparatus is provided. <Development Processing Unit> The development processing unit 11 is a part for developing a printing plate on which an image is printed, and has a developing tank 16 for storing a developing solution. In the developing tank 16, there are provided a guide plate 17 that curves downward to guide the transport of the printing plate, and a roller 18 that is disposed above the guide plate 17. A floating lid 19 is floated on the surface of the developing solution so as to cover the developing solution in the developing tank 16. This floating lid 19
Is for suppressing evaporation and oxidation of the developer. A roller 20 is provided at a downstream end of the development processing unit 11 in the plate transport direction.

Although not shown, the developing tank 16 is provided with a developing solution supply pipe, a developing solution discharge pipe, a pipe for cooling water, a heater, and the like. <Washing Unit> The washing unit 12 is provided with a washing tank 25, a transport roller 26 on the upstream side of the transport, and a transport roller 27 on the downstream side of the transport. A scrub roller 28a for facilitating removal of the photosensitive material from the surface of the printing plate and a pressing roller 28b for pressing against the scrub roller 28a are provided between the upstream conveying roller 26 and the downstream conveying roller 27. I have. The surface of the scrub roller 28a is covered with felt, and is rotated at a peripheral speed higher than the printing plate transport speed. For this reason, the printing plate surface has a scrub roller 28a.
Rubbed by A flush shower pipe 29 is provided between the upstream transport roller 26 and the scrub roller 28a and between the scrub roller 28a and the downstream transport roller 27 to rinse the printing plate with water. From the washing shower pipe 29, a washing liquid is sprayed on the printing plate, and the washing liquid is stored in the washing tank 25 and circulated to the washing shower pipe 29 again by a liquid sending pump 54a described later. Further, a tray (treatment liquid receiving member) 61 described later is provided between each washing shower pipe 29 and the washing tank 25.

As shown in FIG. 2, which is a front view of the rinsing section 12, the rinsing tank 25 is divided by a separating wall 62 into a first storage section 25a and a second storage section 25b. First
The storage part 25a is further divided into three by partition walls 63 and 64.
Space (first space 41, second space 42, third space 4)
It is divided into 3). These three spaces 41,4
2 and 43 communicate under the partition walls 63 and 64. The second storage section 25b is divided into two spaces (a fourth space 44 and a fifth space 45) by a partition wall 65. The partition wall 65 includes a vertical portion 65a extending upward from the bottom surface of the second storage portion 25b, and a horizontal portion 65b extending horizontally from an upper end of the vertical portion 65a and having a plurality of openings formed therein. The fifth space 45 is a space surrounded by the partition wall 65 and the bottom and side surfaces of the second storage section 25b.
Reference numeral 4 denotes a space of the other second storage section 25b.

Various pipes described below are attached to the washing tank 25. The circulation pipe 53 is a pipe for sending a cleaning liquid containing no pollutants such as sludge from the first storage section 25a to the second storage section 25b. The circulation pipe 53 is provided with a pump (circulation means) 53a and a filter 53b. By operating the pump 53a, the first storage unit 25a is switched to the second storage unit 25b.
The cleaning liquid flows from the cleaning liquid to the filter 53.
Sludge and the like are removed by b. The suction port 53c, which is an opening on the first storage section 25a side of the circulation pipe 53,
It is arranged above the second space 42 of the storage section 25a. That is, the suction port 53c is separated upward by a predetermined distance from the bottom surface of the first storage section 25a. The opening of the circulation pipe 53 on the side of the second storage section 25b is open to the bottom of the fifth space 45 of the second storage section 25b (see FIG. 2).

The liquid sending pipe 54 is a pipe for sending the washing liquid from the second storage section 25b to the washing shower pipe 29. The liquid sending pipe 54 is provided with a liquid sending pump 54a, and the washing liquid is sent from the second storage section 25b to the washing shower pipe 29 by operating the liquid sending pump 54a. The liquid feed pipe 54 sucks the cleaning liquid from the bottom of the fifth space 45 near the side wall of the second storage part 25 b and sends the cleaning liquid to the washing shower pipe 29.

The replenishment pipe 55 allows a new cleaning liquid sent from a cleaning liquid supply source (not shown) to flow down from above the second storage section 25b. The overflow pipe 56 is connected to the upper part of the side wall adjacent to the third space 43 of the first storage part 25a (see FIG. 2). The height position of the cleaning solution overflowing from the overflow pipe 56 is determined by the partition 64
Is set lower than the height position of the upper end of. Therefore, the cleaning liquid in the first storage section 25a always flows into the third space 43.
Overflows through.

A heater 57 is provided in the fifth space 45 of the second storage section 25b. The heater 57 warms the cleaning liquid in the fifth space 45, particularly the cleaning liquid near the connection with the liquid feed pipe 54, and adjusts the temperature of the cleaning liquid sprayed on the printing plate P from the washing shower pipe 29. Also,
The temperature of the cleaning liquid in the fifth space 45 is fed back by the temperature sensor 57a, and the output of the heater 57 is controlled.

The drain pipe 58 extends downward from the bottom of the first storage section 25a, and discharges sludge and other deposits collected at the bottom of the first storage section 25a. Normally, the drain valve 58a provided in the drain pipe 58 is closed, and the drain valve 58a is used only when draining work is performed.
a can be opened. As shown in FIGS. 1 and 2, the tray 6 is provided between the washing shower pipe 29 and the washing tank 25.
1 is provided. As shown in FIG. 2, the tray 61 has a shape in which an upper portion is opened upward and a lower portion is converged, and the opening area of the lower opening 61b is smaller than that of the upper opening 61a. The upper opening 61a of the tray 61 has substantially the same shape as the planar shape of the washing tank 25. The opening 61b at the lower part of the tray 61 is located slightly above the liquid level of the first storage part 25a which overflows as a height level, and is located between the separation wall 62 and the partition 63 in plan view. I have. Therefore, the flush shower pipe 2
The washing liquid sprayed on the printing plate P flows down from
When the cleaning liquid enters, the cleaning liquid is collected at the lower part of the tray 61 having the converged shape, and all of the cleaning liquid is collected in the first space 41 of the first storage section 25a.
Flow down to

<Finishing Processing Unit> The finishing processing unit 13
A gum / rinse tank 30 and a gum / rinse liquid shower pipe 31 for spraying a gum / rinse liquid on the printing plate are provided. A pair of squeezing rollers 32 for squeezing the gum solution or the rinsing solution adhered to the surface of the printing plate is provided at the rear of the finishing unit 13.

<Drying Processing Unit> The drying processing unit 14 is provided with a drying chamber 35. In the drying chamber 35, a guide roller 36, upper and lower hot air blowing units 37, and a printing plate are received. A discharge roller 38 for discharging to the table 3 is provided. (Operation) Next, the operation of the entire developing device will be described.

The printing plate on which an image is printed by a printing device (not shown) is conveyed to the insertion tray 2. Alternatively, an operator inserts a printing plate from the insertion tray 2. The printing plate placed on the insertion tray 2 and inserted from the insertion opening 1 a is sent to the developing unit 11 by the transport roller 15. The printing plate is transported in the developing tank 16 by the guide plate 17 and the roller 18 and is immersed in the developing solution. The printing plate on which the development processing has been completed is sent to the rinsing processing section 12.

In the rinsing section 12, the printing plate is transported by the transport roller 2.
Wash shower pipe 2 while being transported by 6, 27
Washing is carried out by spraying the washing liquid from 9. In the water washing section 12, removal of the photosensitive material on the plate surface is promoted by the scrub roller 28a. The printing plate that has been subjected to the water washing process is sent to the finishing unit 13, where a gum solution or a rinsing solution is applied to the surface.

The printing plate to which the gum solution or the rinsing solution has been applied in the finishing section 13 is sent to the drying section 14 between the two squeezing rollers 32. In the drying processing unit 14, the printing plate is dried by hot air blown from the hot air blowing unit 37 while being transported in the drying chamber 35.
The printing plate subjected to the drying process is discharged from the discharge port 1b to the plate receiving table 3.

Next, the flow of the cleaning liquid in the water washing section 12 will be described with reference to FIG. The cleaning liquid sprayed on the printing plate P from the nozzle 29a of the washing shower pipe 29 rinses sludge on the printing plate P and flows down from the opening 61a of the tray 61 to the tray 61. The cleaning liquid flowing down along the inner slope of the tray 61 is collected at the lower portion of the tray 61, and flows down from there through the opening 61b into the first space 41 of the first storage portion 25a.

This cleaning liquid flows under the partition walls 63 and 64 into the second and third spaces 42 and 43. However, pollutants such as sludge contained in the cleaning liquid are liable to settle, so that the bottom of the first storage section 25a is formed. It tends to accumulate in the vicinity. However, since the water is always overflowed from the overflow pipe 56, in the first storage portion 25a, there is a flow of flowing down the first space 41, flowing near the bottom toward the third space 43, and ascending the third space 43. Occurs. Therefore, sludge or the like that is likely to settle is discharged to the outside from the overflow pipe 56 to some extent. When drainage such as sludge accumulates, the drain valve 58a is opened at the time of inspection and the like, and these are discharged from the drain pipe 58.

On the other hand, the cleaning liquid in the first storage section 25a is sucked through the suction port 53c of the circulation pipe 53, and
It is sent to the fifth space 45 of the second storage part 25b by the operation of 3a. At this time, the filter 53 is used to prevent sludge and the like contained in the cleaning liquid from entering the second storage section 25b.
The washing liquid is filtered by b. In addition, the second storage unit 25
b is replenished with a new replenisher from the replenishment pipe 55 as needed.

The fifth space 45 is surrounded by a partition wall 65, and the temperature of the cleaning liquid is adjusted by a heater 57. The temperature-adjusted cleaning liquid is supplied from the liquid supply pipe 54 to the washing shower pipe 29 by the operation of the liquid supply pump 54a.
Sent to Then, the water is sprayed on the printing plate P from the nozzle 29a of the washing shower pipe 29. As described above, the cleaning liquid is circulating between the washing shower pipe 29, the first storage section 25a, and the second storage section 25b. Although the cleaning liquid is moved between the first storage part 25a and the second storage part 25b only by the circulation pipe 53 here, the cleaning liquid passes over the separation wall 62 from the second storage part 25b to the first storage part 25a. May be set so that the cleaning liquid overflows.

(Characteristics) Next, the washing section 1 of the present embodiment.
The second feature will be described. First, here, the washing tank 25 is divided into two storage units (a first storage unit 25a and a second storage unit 25b).
The cleaning efficiency of the cleaning liquid is improved by separating the degree of contamination of the cleaning liquid in each case.
The separation wall 62 and the filter 53b clean the cleaning liquid in the second storage section, thereby eliminating the problem that the nozzle 29a of the washing shower pipe 29 is clogged and the discharge amount of the cleaning liquid discharged to the printing plate P is reduced. ing.

Second, here, the suction port 53c of the circulation pipe 53 is not located at the bottom of the first storage section 25a but near the upper part of the liquid layer of the first storage section 25a which is separated from the bottom by a predetermined distance upward. Are located. Therefore, the first storage unit 25a
Contaminants, such as sludge, which are likely to settle inside, are less likely to flow into the circulation pipe 53. That is, by disposing the suction port 53c somewhat upward, the first storage section 25
The cleaning liquid in the relatively high cleanliness portion in the area a is selectively sucked into the circulation pipe 53. Therefore, the burden on the filter 53b is reduced, and the labor for cleaning and replacing the filter 53b is reduced.

Third, here, the first storage section 25a and the second storage section 25b are arranged below the flush shower pipe 29, but the tray 61 is provided directly below the flush shower pipe 29, and the flush shower pipe 29 is provided. The cleaning liquid flowing down from the pipe 29 flows down only to the first storage section 25a. Therefore, the cleaning liquid that comes into contact with the printing plate P and contains sludge does not flow down to the second storage part 25b, and the cleanliness of the second storage part 25b is ensured.

Fourth, here, the cleaning liquid is not caused to flow directly from the washing shower pipe 29 to the first storage part 25a, but to the first storage part 25a via the tray 61. Accordingly, evaporation of the cleaning liquid generated during the flow from the washing shower pipe 29 to the first storage section 25a and bubbling of the cleaning liquid near the liquid surface of the first storage section 25a are reduced.

Fifth, here, the flush shower pipe 2
The washing liquid flowing down from the tray 9 is supplied to the opening 61 at the top of the tray 61.
a into the tray 61, collected at the lower part of the converged shape, and flows down from the lower opening 61b to the first storage part 25a. As described above, the tray 61 has the upper opening 61a.
And a lower opening 61 having a small opening area.
Since the cleaning liquid flows down from b to the first storage section 25a, the portion (area) of the first storage section 25a where the cleaning liquid flows down
Is limited and foaming is smaller. Further, since the processing liquid flows along the shape converging downward in the tray 61, the evaporation and bubbling of the cleaning liquid are also suppressed in the tray 61.
The lower opening 61b is disposed at a height position close to the liquid level of the first storage section 25a to reduce the impact at the time of collision between the cleaning liquid flowing down from the lower opening 61b and the liquid level of the first storage section 25a. By doing so, foaming is further suppressed.

Seventh, since the partition (flow guide wall) 63 is provided between the suction port 53c of the circulation pipe 53 and the lower opening 61b of the tray 61, the lower opening 6 is formed.
The cleaning liquid containing sludge or the like that has flowed down from 1b to the first storage section 25a does not flow to the vicinity of the suction port 53c unless it once passes near the bottom of the first storage section 25a. The cleaning liquid that reaches the vicinity of the suction port by ascending in the second space 42 near the bottom of the first storage unit 25a removes most of the contaminants such as sludge that easily precipitates from the first storage unit 25a. Left near the bottom of the. Therefore,
The amount of sludge and the like sucked into the circulation pipe 53 from the suction port 53c is reduced. Thereby, the filter 5
The burden on the filter 3b is reduced, and the labor for cleaning and replacing the filter 53b is reduced.

[Second Embodiment] In the first embodiment, the tray 61 having the vertical section shown in FIG. 1 and the horizontal section shown in FIG. 2 is used, but the vertical section shown in FIG. If the tray 81 is used, the amount of evaporation of the cleaning liquid can be further reduced. The tray 81 shown in FIG. 3 has troughs 81a, 81c, 81e and peaks 81b, 81d in a vertical section, and a cross section is the same as that of the tray 61 shown in FIG. The valleys 81a, 81c, and 81e are respectively formed by the upstream transport roller 26, the pressure roller 28b, and the downstream transport roller 2.
7 is formed so as to avoid contact therewith. Yamabe 81
The b and 81d are formed so as not to contact the rollers 26, 28b and 27, and as close as possible to the flush shower pipe 29. By employing such a tray 81, the vertical distance from the washing shower pipe 29 or the printing plate P to the tray 81 is reduced, and the amount of evaporation of the cleaning liquid flowing down the tray 81 is reduced.

[Third Embodiment] In the first embodiment, the partition 63 is provided and the circulation pipe 53 is connected to the suction port 53c.
Although the amount of sludge or the like sucked into the tray 61 is suppressed, the opening 61b at the lower part of the tray 61 can be inserted into the first storage part 25a and disposed below the suction port 53c as shown in FIG.

As shown in FIG. 4, the structure of the washing tank 25 of this embodiment is different from that of the first embodiment in that the partition 63 is eliminated and the lower portion of the tray 61 is extended downward to form the lower opening 61b. It is one that is pushed into the central part of the liquid layer of the one storage part 25a. Therefore, the height position of the suction port 53c is higher than the height position of the opening 61b at the lower part of the tray 61.

Here, the cleaning liquid containing sludge and the like flowing down from the lower opening 61b to the first storage section 25a is supplied to the first storage section 25a.
The air is not sucked into the circulation pipe 53 from the suction port 53c unless it rises in the storage section 25a. However, most of the sludge or the like that is likely to settle is in the first storage section 25a.
Is settled near the bottom of the base and is rarely sucked from the suction port 53c located at a position higher than the lower opening 61b. Thereby, contaminants such as sludge flowing into the circulation pipe 53 are reduced, the burden on the filter 53b is reduced, and the labor for cleaning and replacing the filter 53b is reduced.

[0049]

According to the present invention, since the processing liquid in the first storage section, which is contaminated by contact with the photosensitive material, is filtered and filtered and stored in the second storage section, the discharge section is clogged. Is eliminated, and it becomes almost unnecessary to use a filtering means such as a filter when the liquid is sent from the second storage section to the discharge section.

In another aspect of the present invention, since the processing liquid receiving member is provided, evaporation and bubbling of the processing liquid are suppressed.

[Brief description of the drawings]

FIG. 1 is a schematic longitudinal sectional configuration diagram of a developing device according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view of a washing section.

FIG. 3 is a longitudinal sectional view of a tray according to a second embodiment.

FIG. 4 is a cross-sectional view of the third embodiment.

FIG. 5 is a cross-sectional view of a conventional washing section.

[Explanation of symbols]

 25a First storage section 25b Second storage section 26, 27 Transport roller (transport means) 29 Rinse shower pipe (discharge section) 54 Circulation pipe (circulation path) 54a Pump (circulation means) 53b Filter 53c Suction port 54 Liquid supply pipe ( Liquid supply means) 54a Liquid supply pump (liquid supply means) 55 Replenishment pipe (replenishment means) 61 Tray (treatment liquid receiving member) 61a Upper opening 61b Lower opening 63 Partition wall (flow guide wall)

Claims (7)

[Claims] 1. A photosensitive material processing apparatus for performing processing by spraying a processing liquid from above a photosensitive material being transported by a transporting means, comprising: transporting means for transporting the photosensitive material; and transporting by the transporting means. A discharge unit that is located above the photosensitive material and discharges the processing liquid; a first storage unit that is provided below the discharge unit and receives the processing liquid that flows down; and a processing liquid that is stored in the first storage unit. A filtration unit for filtering, a second storage unit for storing the processing liquid filtered by the filtration unit, a liquid sending unit for sending the processing liquid in the second storage unit to the discharge unit, and a second storage unit. Replenishing means for replenishing a new processing solution,
Photosensitive material processing apparatus comprising: 2. The filter according to claim 1, wherein the filtering means has a suction port at a position separated from the bottom where the height of the first storage part is the lowest by a predetermined distance, and connects the first storage part and the second storage part. The photosensitive material processing apparatus according to claim 1, further comprising a circulating path connecting the circulating path, and a circulating unit and a filter provided in the circulating path. 3. The first storage section and the second storage section are both arranged below the discharge section, and the discharge is performed such that the processing liquid flowing down from the discharge section flows down only to the first storage section. The photosensitive material processing apparatus according to claim 1, further comprising a processing liquid receiving member provided below the section. 4. The photosensitive member according to claim 3, wherein the processing liquid receiving member has a shape in which an upper portion is opened upward and a lower portion is converged, and an opening area of a lower opening is smaller than that of an upper opening. Material processing equipment. 5. The processing liquid receiving member, wherein the lower opening is below the liquid level of the processing liquid in the first storage section, or the lower opening is in the liquid level of the processing liquid in the first storage section. The photosensitive material processing apparatus according to claim 4, wherein the photosensitive material processing apparatus is located at an adjacent height position. 6. The photosensitive material processing according to claim 4, wherein in the first storage section, a height position of a suction port of the circulation path is higher than a height position of a lower opening of the processing liquid receiving member. apparatus. 7. The first storage section includes a circulation port configured to circulate the processing liquid from a suction port of the circulation path to a lower opening of the processing liquid receiving member so as to pass near a bottom of the first storage section. The photosensitive material processing apparatus according to claim 4, wherein a flow guiding wall is provided between a suction port of the path and an opening at a lower portion of the processing liquid receiving member.