JPH06289564A - Photosensitive material processor - Google Patents

Abstract

PURPOSE:To reinforce the detergency of opposed carrying rollers, to prevent the fatigue(dirt) and the crystallization of liquid on a roller surface, and to always obtain a good image. CONSTITUTION:An integrated guide 41 is provided on a crossover rack 34. As to the guide 41; a first guide 41A, a second guide 41B and a connecting part 41C are integrally constituted, and a washing water storage tank 43 is formed on the top of the connecting part 41C. A water injecting port 43B is holed on the bottom part 43A of the storage tank 43, and the opposed carrying rollers 35 are washed by the washing water 45 injected to the upper roller 35A of the opposed carrying rollers 35 from the water injecting port 43B. A guide board 51 is provided under the lower roller 35B, and the washing water 45 flows along the guide board 51 to a washing tank 18 and the washing water 45 is prevented from mixing with fixing solution.

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 provided with a crossover rack having opposed conveying rollers for feeding the photosensitive material processed by a processing solution to the next processing section.

[0002]

2. Description of the Related Art A light-sensitive material having an image printed thereon is sequentially developed with a processing solution such as a developing solution, a fixing solution, and washing water.
A fixing process, a water washing process, and the like are performed, and thereafter, the fixing process and the water washing process are sent to a drying unit to be dried.

A crossover rack is provided between each developing processing tank, fixing processing tank, washing processing tank, and drying section, and the photosensitive material after processing with the processing solution is transferred to the next processing section. It is supposed to be sent.

That is, as shown in FIG. 5, the photosensitive material is conveyed in the crossover rack 80 (direction of arrow F in FIG. 5).
Opposite conveying rollers 82 for conveying the photosensitive material are provided in a central portion along the so that the respective rollers are vertically arranged. In addition, a first guide 84 is provided on the upstream side of the counter conveying roller 82 in the conveying direction, and a second guide 86 is provided on the downstream side of the counter conveying roller 82 in the conveying direction.

[0005]

However, in the crossover rack 80 of this photosensitive material processing apparatus, the components of the photosensitive material and the components of the fixing liquid adhere to the surface of the opposed conveying roller 82, and the fatigue of the remaining liquid is reduced. There is a problem that crystallization is likely to occur and the image quality is deteriorated.

In order to improve this, a cleaning tank 88 filled with cleaning water is provided below the lower roller 82A of the opposite conveying roller 82, and the opposite conveying roller 82 is filled with the cleaning water pumped by the rotation of the lower roller 82A. It is known that the counter conveyance roller 8 is also washed in this case.
2. In particular, the upper roller 82B cannot be washed sufficiently, and the components of the photosensitive material,
There is a problem in that the components of the fixer adhere to the crystallization, and the image quality is degraded. In addition, the image quality is also deteriorated due to stains on the wash water in the wash tank 88 or generation of algae.

In consideration of the above facts, the present invention enhances the cleaning power of the opposite conveying roller and makes the liquid on the roller surface fatigue (dirt).
It is an object of the present invention to provide a photosensitive material processing apparatus which can prevent crystallization and can always obtain a good image.

[0008]

According to a first aspect of the present invention, there is provided an opposed conveying roller for feeding the photosensitive material, which has been processed with the processing liquid, from the processing section of the previous step to the processing section of the next step.
A crossover rack having a first guide that guides the photosensitive material from the processing unit in the previous step to the counter conveying roller, and a second guide that guides the photosensitive material from the counter conveying roller to the processing unit in the next step. A photosensitive material processing device comprising: It is characterized in that the crossover rack is equipped with a cleaning water supply means for supplying the cleaning water toward the opposed conveying rollers.

The invention described in claim 2 is the same as claim 1.
In the invention described in (1), a cleaning water guide unit for guiding the cleaning water falling from the opposed conveyance roller to a predetermined processing section is provided below the opposed conveyance roller.

[0010]

According to the first aspect of the present invention, in the crossover rack, the photosensitive material guided from the processing section of the previous step by the first guide is nipped and conveyed by the opposed conveying rollers, and by the second guide, the next step of the next step is performed. Send to the processing unit. Further, according to the present invention, the first guide and the second guide have an integrated structure in which they are connected by a connecting portion that covers the upper side of the opposing conveying roller, and when the photosensitive material does not pass through the crossover rack, The cleaning water is injected from the cleaning water supply means provided in the connecting portion toward the opposing conveyance roller.

Therefore, the washing water is sufficiently poured also on the upper roller of the opposed conveying roller. For this reason, the cleaning power of the opposing conveyance roller is enhanced, and the roller surface can be prevented from being soiled or crystallized. In addition, since the upper part of the opposite conveying roller is covered with the connecting portion, it is possible to make it difficult to dry the entire crossover rack, and this can prevent the liquid (fouling) and crystallization of the liquid on the roller surface.

Further, according to the second aspect of the present invention, the cleaning water falling from the opposed conveying rollers is guided to the predetermined processing section by the cleaning water guide means. So, for example,
When the crossover rack is arranged between the fixing tank and the washing tank, the washing water is guided by the washing water guide means.
It can be guided to the washing tank, and the washing water can be prevented from being mixed in the fixing solution.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows an automatic developing apparatus 10 which is a photosensitive material processing apparatus to which the present invention is applied. The automatic developing device 10 is a device in which a film 20, which is an example of a light-sensitive material, is dipped in a developing solution, a fixing solution and washing water to be processed, and then dried.

The automatic developing device 10 is provided with a processing liquid processing section 11 and a drying section 50 in a machine frame 12. The processing liquid processing unit 11 includes a developing tank 14 for storing a developing solution, a fixing tank 16 for storing a fixing solution, and a washing tank 18 for storing washing water, and is provided in the vicinity of the insertion port 15 provided in the machine frame 12. , An insertion rack 17 for drawing the film 20 into the machine frame 12, and an insertion detection sensor 8 for detecting the film 20 to be inserted.
0 is set.

The developing tank 14 and the fixing tank 1 of the processing liquid processing section 11
6, in the washing tank 18, a plurality of transport rollers 22, 26,
Transport racks 24, 28, 32 each having 30
It is disposed by being immersed in a developing solution, a fixing solution, and washing water.
A crossover rack 34 is arranged between the developing tank 14 and the fixing tank 16 and between the fixing tank 16 and the washing tank 18.

The film 20 inserted from the insertion opening 15
Is drawn in by the insertion rack 17, and the developing solution, the fixing solution, and
It is conveyed while being successively immersed in washing water to undergo development, fixing, and washing treatment.

As shown in FIG. 2, in the central portion of the crossover rack 34 along the transport direction of the film 20, opposed transport rollers 35 for transporting the film 20 are provided, and respective rollers 35A and 35B are vertically arranged. Is provided. Further, on the downstream side of the crossover rack 34 in the transport direction of the film 20, opposed transport rollers 36 are provided so that the rollers are aligned in the horizontal direction (the left-right direction in FIG. 2). It is composed of a large diameter roller 37 arranged on the right side of FIG. 2 and a small diameter roller 38 arranged on the left side of FIG.

As shown in FIG. 3, enlarged diameter portions 38A are formed near both ends of the small diameter roller 38, and the outer peripheral surfaces of these enlarged diameter portions 38A contact the outer peripheral surface of the large diameter roller 37. Touching. Therefore, when the film 20 is not conveyed, the portion 38 between the expanded diameter portions 38A of the small diameter roller 38 is formed.
A gap 39 is formed between B and the large diameter roller 37.

The expanded diameter portion 38A of the small diameter roller 38 is
The film 2 is located outside the width of the film 20.
0 is the large diameter roller 37 and the expanded diameter portion 38 of the small diameter roller 38.
It is adapted to be nipped between the portion 38B between A and.

A shaft diameter R1 of the expanded diameter portion 38A of the small diameter roller 38 is 10.2 mm, and a portion 38B between the expanded diameter portions 38A.
The shaft diameter R2 of the film is 10.0 mm, and the level difference is slightly smaller than the thickness of the film 20. However, the level difference of the film 20 is within a range that does not hinder the conveyance of the film 20 by the opposed conveyance rollers 36. It may exceed the thickness.

As shown in FIG. 2, the crossover rack 34 is provided with an integrated guide 41. The integrated guide 41 is provided on the upper roller 3 of the opposite conveying roller 35.
The film 2 is located on the upstream side of the film transport direction of 5A.
First guide 41A that guides 0 to the opposite conveying roller 35
And a second guide 41B positioned between the upper roller 35A of the opposite conveying roller 35 and the small diameter roller 38 of the opposite conveying roller 36 to guide the film 20 from the opposite conveying roller 35 to the opposite conveying roller 36, and the opposite conveying. A connecting portion 41 that is arranged along the upper outer periphery of the upper roller 35A of the roller 35 and connects the first guide 41A and the second guide 41B.
C and C are integrally configured, and a cleaning water storage tank 43 as cleaning water supply means is formed at the top of the connecting portion 41C.

As shown in FIG. 4, the wash water storage tank 43
Is disposed above the upper roller 35A of the opposed conveyance roller 35 along the axial direction, and the cleaning water 45 is pumped into the cleaning water storage tank 43 by a pump (not shown). In addition, in the bottom portion 43A of the wash water storage tank 43, water injection ports 43B are provided at predetermined intervals in the axial direction of the counter conveyance roller 35, and from the water injection ports 43B to the upper side of the counter conveyance roller 35. The entire surface of the counter conveyance roller 35 is cleaned by the cleaning water 45 poured on the roller 35A.

The timing of pouring the cleaning water 45 is determined by the crossover rack 34 between the developing tank 14 and the fixing tank 16.
Then, for example, after a certain amount (1 m ^{2 in} this embodiment) or more of the film 20 has been processed, and after the end of the treatment, a non-processed state has passed for a certain time (15 minutes in this embodiment) or more, or the next film It is designed to be performed at the same time as the start of the treatment, and the amount of the washing water 45 for one treatment is set to 10 ml.

The crossover rack 34 between the fixing tank 16 and the washing tank 18 is designed to be carried out immediately after the film processing, for example, and the amount of the washing water 45 for one time is 25 ml. .

As shown in FIG. 2, the opposite conveying roller 35 is provided.
A wash water guide plate 51 is provided below the lower roller 35B. This wash water guide plate 51 is used for the fixing tank 1.
In the crossover rack 34 arranged between the washing tank 6 and the washing tank 18, the film 20 is conveyed on the upstream side (see FIG. 2).
(The right side of FIG. 2), the downstream side (left side in FIG. 2) of the film 20 in the transport direction is lower, and the cleaning water 45 dropped from the lower roller 35B of the opposing transport roller 35 is guided along the cleaning water guide plate 51. Flow into the washing tank 18 to wash the fixing solution 4
It is designed to prevent the mixture of 5.

On the other hand, in the crossover rack 34 arranged between the developing tank 14 and the fixing tank 16, the wash water guide plate 51 is provided on the upstream side (the right side in FIG. 2) of the film 20 in the conveying direction. 20 downstream in the transport direction (see FIG.
(Left side of FIG. 2) is high (state of imaginary line in FIG. 2), and the cleaning water 45 dropped from the lower roller 35B of the opposite conveying roller 35 flows to the developing tank 14 along the cleaning water guide plate 51 and is fixed. The cleaning water 45 is prevented from being mixed into the liquid. In this case, the concentration of the developing solution diluted with the cleaning water 45 is returned to the original level by supplementing the developing solution with a high concentration.

As shown in FIG. 1, a squeeze roller 42 for conveying the film 20 while squeezing the film 20 and a guide for guiding the film 20 toward the drying section 50 are provided between the washing tank 18 and the drying section 50. A squeeze rack 40 is provided. Film 2 sent out from the washing tank 18
0 is guided to the drying unit 50 while squeezing the surface water content by the squeeze roller 42.

The squeeze roller 4 close to the washing tank 18
2 and the guide, a developing tank 14, a crossover rack 34 between the fixing tank 16, a fixing tank 16 and a washing tank 18
A crossover rack having the same configuration as the crossover rack 34 can be applied.

In the drying section 50, the transport rollers 44 and the heat rollers 60, which are stretched between a pair of side plates 54 arranged in parallel to each other and transport the film 20, are arranged in a zigzag pattern to transport the film 20. A blowing pipe 47 is provided which forms a passage and blows the dry air generated by a dry air generating unit 45 having a heater and a drying fan toward the vicinity of the transport roller 44 and the heat roller 60. The blow-out pipe 47 is independently arranged between each of the transport rollers 44 and the heat roller 60, and a chamber 49 is provided at one end portion in the longitudinal direction thereof.

That is, the dry air generated by the heater and the drying fan is temporarily stocked in the chamber 49 to be pressure-equalized, and then is guided to each blow-out pipe 47, and is blown out from the blow-out port of the blow-out pipe 47. It is configured to be.

The transport rollers 44 and the heat rollers 60 in the drying section 50 are arranged in the order of two transport rollers 44 from the upper side of the drying section 50, and then four heat rollers 60. Ten transport rollers 44 are arranged. The film 20 is conveyed downward by the conveying force while being in contact with the conveying rollers 44 and the heat rollers 60 arranged in a zigzag manner in sequence as described above, and is ejected from the blowing pipe 47. It is heated and dried by the dry air.

At the lower part of the drying section 50, the drying turn section 48 is provided.
The film 20 dried by the heat roller 60 and the drying air is turned obliquely upward in the drying turn portion 48, and is then stocked in the receiving box 52.

The operation of this embodiment will be described below. The film 20 on which an image is recorded by exposure is inserted into the automatic developing device 10 through the insertion port 15 of the automatic developing device 10 and processed. In the automatic developing device 10, the film 20 inserted from the insertion port 15 is drawn by the insertion rack 17 and sent to the developing tank 14 of the processing liquid processing section 11.

In the developing tank 14, the carrying roller 22 of the rack 24 carries it into a developing solution while carrying it in a substantially U-shape to carry out a developing process. The film 20 that has been processed with the developed image 14 is the integrated guide 4 of the crossover rack 34.
The first first guide 41 </ b> A guides the sheet to the opposite conveying roller 35, and the sheet is nipped and conveyed by the opposite conveying roller 35. Further, the film 20 is formed by the second guide 4 of the integrated guide 41.
1B, it is guided to the opposite conveying roller 36, is nipped and conveyed by the opposite conveying roller 36, and is sent to the fixing tank 16.

Further, in this embodiment, the first guide 41A and the second guide 41B are connected to each other by the connecting portion 41C which covers the upper side of the upper roller 35A of the opposed conveying roller 35, and the film 20 is formed integrally. Crossover rack 3
4 does not pass through, the washing water 45 is poured onto the entire surface of the upper roller 35A of the counter conveyance roller 35 from the water inlet 43B of the washing water storage tank 43 provided in the connecting portion 41C.

For example, after a certain amount (1 m ^{2 in} this embodiment) or more of the film 20 is processed, and after the film processing is completed, a non-processed state has passed for a certain time (15 minutes in this embodiment) or more, or The washing water 45 is injected at the same time when the film processing is started.

Therefore, the cleaning water 45 is sufficiently supplied to both the upper roller 35A and the lower roller 35B of the opposite conveying roller 35. For this reason, the cleaning power of the opposing conveyance roller 35 is enhanced, and it is possible to prevent the liquid on the roller surface from becoming fatigued (dirt) or crystallized. Further, since the upper part of the upper roller 35A of the opposite conveying roller 35 is covered with the connecting portion 41C, it is possible to make it difficult to dry the entire crossover rack 34, which also causes fatigue (dirt) and crystallization of liquid on the roller surface. Can be prevented. Also, liquid splash can be prevented.

Further, the cleaning water 45 dropped from the lower roller 35B of the opposite conveying roller 35 flows to the developing tank 14 along the cleaning water guide plate 51, and it is possible to prevent the cleaning water 45 from being mixed into the fixing solution. it can.

Further, in the present embodiment, the opposite conveying roller 36 is used.
At the outer peripheral surface of the expanded diameter portion 38A of the small diameter roller 38,
The film 20 is in contact with the outer peripheral surface of the large diameter roller 37.
When the sheet is not conveyed, the expanded diameter portion 38 of the small diameter roller 38 is
A gap 39 is provided between the portion 38B between A and the large diameter roller 37.
Are formed. Therefore, the developer remaining at the contact portion between the large diameter roller 37 and the portion 38B between the enlarged diameter portions 38A of the small diameter roller 38 flows down from the gap 39. Therefore, the amount of the developing solution at the front end of the film 20 to be processed next does not increase, uneven sensitization unevenness at the front end of the film 20 is eliminated, and deterioration of image quality can be prevented.

In the fixing tank 16, the film 20 is conveyed while being guided in a substantially U shape by the conveying roller 26 of the rack 28, and is immersed in the fixing solution to perform the fixing process. The film 20 that has been processed in the fixing tank 16 is guided and conveyed by the crossover rack 34 and sent to the washing tank 18. In this case, wash water 4 in the crossover rack 34
The water injection of 5 is performed immediately after the film processing. The wash water 45 from the crossover rack 34 flows into the wash tank 18 along the wash water guide plate 51.

Accordingly, the liquid on the roller surface becomes fatigued (dirt).
And the crystallization can be prevented, and the cleaning water 45 dropped from the lower roller 35B of the opposite conveying roller 35 is
The cleaning water 45 flows along the cleaning water guide plate 51 to the cleaning tank 18, and it is possible to prevent the cleaning water 45 from being mixed into the fixing solution.

In the washing tank 18, the film 20 is conveyed while being immersed in washing water by the conveying roller 30 of the rack 32 to wash the film 20 and remove the fixer component from the surface of the film.

The film 20 that has been washed with water is guided and conveyed from the washing tank 18 to the squeeze roller 42 of the squeeze rack 40 and a guide, and the treatment liquid treatment section 11 to the drying section 5 are conveyed.
Sent to 0. At this time, the water adhering to the surface of the film 20 is removed by the squeeze roller 42.

In the drying section 50, first, the film 20 is
The front and back surfaces are alternately contacted with the individual transport rollers 44 and transported, and at the same time, dry air is blown. As a result, the squeeze roller 42 does not divide the squeeze, and particularly water drops that remain at the leading or trailing end of the film 20 in the transport direction, as well as water drops that remain nonuniformly over the entire film 20, become relatively uniform. can do.

Next, the four heat rollers 60 alternately contact the front and back surfaces of the film 20 to which water droplets are relatively uniformly attached by the transport roller 44 and the dry air, so that evaporation is promoted. Then, heat roller 60
The atmosphere containing a large amount of water is eliminated by the dry air from the blow-out pipe 47 corresponding to, and evaporation is further promoted. At this time, since there is no water droplet unevenness on the film 20, evaporation is not partially delayed or advanced, and evaporation is uniformly promoted over the front surface of the film 20.

Thereafter, while the film 20 is being conveyed by the ten conveying rollers 44, the dry air generated by the dry air generating section 45 is jetted from the blowing pipe 47 toward the front and back surfaces of the film 20 to heat the film 20. dry. The film 20 is conveyed while being heated, and the drying turn unit 4
When it reaches 8, it is turned obliquely upward, discharged, and stocked in the receiving box 49.

[0047]

As described above, the photosensitive material processing apparatus according to the present invention is capable of enhancing the cleaning power of the opposed conveying roller and preventing the liquid (fouling) and crystallization of the liquid on the roller surface, which is always good. It has an excellent effect that a clear image can be obtained.

[Brief description of drawings]

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

FIG. 2 is a cross-sectional view showing a crossover rack.

FIG. 3 is a sectional view taken along line 3-3 of FIG.

4 is a sectional view taken along line 4-4 of FIG.

FIG. 5 is a cross-sectional view showing a conventional crossover rack.

[Explanation of symbols]

 10 Automatic Developing Device 34 Crossover Rack 35 Opposing Conveying Roller 35A Upper Roller 35B Lower Roller 41 Integrated Guide 41A First Guide 41B Second Guide 41C Connection 43 Cleaning Water Storage Tank (Cleaning Water Supply Means) 43B Water Injection Port 45 Cleaning Water 51 Wash water guide plate

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Kenro Yamamoto 1250 Takematsu, Minamiashigara City, Kanagawa Prefecture, Fuji Kikai Kogyo Co., Ltd. (72) Inventor Tadashi Fujii, 1250 Takematsu, Minami Ashigara City, Kanagawa Kenji Kogyo Co., Ltd. (72) Inventor Mitsuru Katsumata 1250 Takematsu, Minamiashigara City, Kanagawa Prefecture Fuji Kikai Kogyo Co., Ltd.

Claims (2)

[Claims] 1. A counter-conveying roller for feeding a photosensitive material after processing with a processing liquid from a processing section of a previous step to a processing section of a next step, and the photosensitive material from the processing section of the previous step to the counter-conveying roller. 1. A photosensitive material processing device comprising a crossover rack having a first guide for guiding and a second guide for guiding the photosensitive material from the facing conveyance roller to the processing section of the next step, wherein the first guide A cleaning water supply unit configured to connect the second guide with a connecting portion that connects the second guide via the upper portion of the counter conveying roller and has an integrated structure, and supplies the cleaning water to the connecting portion toward the counter conveying roller. A photosensitive material processing apparatus mounted on the crossover rack. 2. The photosensitive material processing apparatus according to claim 1, further comprising a cleaning water guide unit provided below the opposed conveyance roller to guide cleaning water dropped from the opposed conveyance roller to a predetermined processing section.