JPH05257255A - Development processing device with water replenishing function - Google Patents

Abstract

PURPOSE:To automatically replenish water when the concn. of a processing liquid increases and to wash a guide roller by utilizing the water for replenishment. CONSTITUTION:A partition 26 is provided between one processing tank 22 and another processing tank 24 and a rack 18 is provided above this partition. A turn guide 25 is provided in the lower part of this rack 18. On the other hand, a nozzle 12 for allowing the replenishing water to flow out is provided above the rack 18. The replenishing water 102 flowing out of the nozzle 12 is poured through an aperture 25a onto the guide roller 30, etc. As a result, the crystals, etc., generated on the guide roller 30 are washed away. The replenishing of the water is executed while a film 100 is not in contact with the guide roller 30.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a developing apparatus for developing a film or a photographic paper, and more particularly to a means for replenishing a processing solution with water.

[0002]

2. Description of the Related Art As is well known, a color developing film after image pickup is developed by a plurality of processing steps in a film developing processing apparatus. Specifically, a series of steps such as a color developing step, a bleaching step, a fixing step, and a stabilizing step are executed. In the development of photographic paper, the bleaching and fixing steps may be performed in the same processing tank.

Each processing solution used in each of these steps is
The density must be proper, and if the density is out of the proper value, development becomes extremely poor. That is, when the concentration of the processing liquid increases due to evaporation, defective development occurs.

Therefore, in the conventional developing processing apparatus,
The specific gravity of each treatment liquid was artificially measured periodically, and when the specific gravity was below a predetermined range, water was artificially replenished.

[0005]

However, artificial concentration control is extremely complicated and costly, and accurate water replenishment may be difficult unless an expert is involved.

Therefore, there is a first demand for automatic replenishment of water and automatic control of the concentration of the treatment liquid.

On the other hand, a guide roller for guiding the movement of the film to be developed is provided above each processing tank. The processing liquid from the film surface adheres to the guide roller, and There is a problem of crystallization due to drying. That is, if the crystal of the treatment liquid adheres to the guide roller, the film or the like may be damaged.

Therefore, there is a second desire to regularly clean the crystals generated on the guide roller.

The present invention has been made in view of the above-mentioned first and second demands, and at the same time water is automatically replenished,
An object of the present invention is to provide a development processing device with a water replenishment function that can clean the guide roller using the replenishing water.

[0010]

In order to achieve the above-mentioned object, the present invention provides a tank in which an object to be developed is put in and taken out,
In a development processing apparatus including a processing tank containing a predetermined processing solution and a guide roller provided above the processing solution and for guiding the movement of the development target, a water tank for containing makeup water. A specific gravity meter provided in the development processing tank, a water replenishment control unit for performing replenishment control of replenishment water to the processing tank based on the specific gravity indicated by the specific gravity meter, and provided above the guide roller, A replenishing water nozzle for flowing replenishing water to be replenished to the treatment liquid from a water tank, the replenishing water being replenished into the treatment tank while cleaning the guide roller.

[0011]

According to the above construction, when the concentration of the treatment liquid increases due to evaporation, the water replenishment controller supplies the replenishment water from the water tank to the treatment tank based on the specific gravity indicated by the hydrometer.

In this case, a replenishing water nozzle is provided above the guide roller, and the replenishing water flowing out from the replenishing water nozzle is supplied into the processing tank while cleaning the guide roller. Therefore, the guide roller can be cleaned at the same time as the replenishment water is replenished, and the crystals of the processing liquid described above can be removed.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A preferred embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 shows a preferred embodiment of a development processing apparatus with a water replenishment function according to the present invention, and FIG. 1 is a schematic external view thereof.

The development processing apparatus 10 of this embodiment is for developing a color film or a color paper.
In the following description, it is assumed that the color film is developed.

In FIG. 1, an apparatus 10 includes a plurality of processing tanks for performing various kinds of processing on a film, and a plurality of nozzles 12 are provided corresponding to each processing tank.
The nozzle 12 is a water tank 14 provided in the device 10.
The replenishment water supplied from the outlet flows out and is fixedly arranged inside the openable / closable cover 16 as shown in FIG.

FIG. 2 shows a partially enlarged view of the device 10 shown in FIG. 1, in which the nozzle 12 is located above a rack 18 to be described later when the cover 16 is closed.

In the present embodiment, the nozzle 12 has two outlets 12a and 12b, respectively, and the replenishing water from the outlets 12a and 12b has two openings formed on the upper surface of the rack 18. It flows downward through 18a and 18b.

In FIG. 2, an electromagnetic valve 20 provided at the base end of the nozzle 12 controls on / off of outflow of replenishment water, and is controlled by a water replenishment control unit described later.

A partial cross-sectional view of the device 10 is shown in FIG. In the figure, 22 indicates one of the plurality of treatment tanks, and 24 indicates a treatment tank adjacent to the treatment tank 22. Hereinafter, 22 will be referred to as one processing tank and 24 will be referred to as the other processing tank.

A partition 26 is provided between the one processing tank 22 and the other processing tank 24 to completely separate the processing liquids contained in the two processing tanks.

Above the partition 26, the rack 1 shown in FIG.
8 is fixed, and a rack 18 is provided at the bottom of the rack.
Turn guide 25A having a concave shape when viewed from the lower surface side
Are formed. This turn guide 25 is also provided in the conventional apparatus, and has a function of guiding the traveling direction of the film 100 conveyed upward from one processing tank 22 to the other processing tank 24. That is, the film 100 is conveyed at a constant speed by a film reader (not shown).

When the film 100 is conveyed, it is guided by a plurality of guide rollers 26, 28, 30, 32, etc., and as shown in the drawing, the film 100 is conveyed.
Is pulled up between the guide rollers 27 and 28 and then bent along the turn guide 25.
It is wound around the guide roller 30 and the guide roller 32 and guided to the other processing tank 24. The guide roller 30 and the guide roller 32 are driven at a constant rotation speed by a roller driving mechanism. In the figure, four guide rollers are shown, and other guide rollers are not shown.

As shown in FIG. 3, a nozzle 12 is arranged above the rack 18, and the replenishing water 102 flows downward from the nozzle 12. As shown in the figure, the turn guide 25 has an opening 25a formed at a position where the replenishment water 102 is dropped, and the replenishment water 102 is poured into the guide roller 30 and the guide rollers 26, 28 through the opening 25a. It will come off. Then, the supplementary water 102 is finally supplied to one of the treatment tanks 22.

The replenishing water is replenished by the apparatus 10 of this embodiment in a state where the film 100 is not in contact with the guide rollers 26 to 32 (non-treatment state).

FIG. 4 shows a cross section of the rack 18 as viewed from the side.

In the present embodiment, the two films are simultaneously developed, so that the rack 18 is also divided into two parts, each of which is provided with a turn guide 25 and the like. Correspondingly, the nozzle 12 is provided with two outflow ports 12a and 12b.

In this embodiment, three openings 25a are formed in the turn guide 25, and the replenishment water 102 flowing out from the nozzle 12 reaches the guide roller 30 through any one of the openings 25a. In the figure, 3
Reference numeral 4 denotes a mechanism for rotating the guide roller 30.

FIG. 5 shows a schematic structure of the water replenishing system provided in the apparatus 10 of this embodiment.

In FIG. 5, each processing tank 36 (for example, the processing tank 22 or the processing tank 24) is provided with a specific gravity meter 38, and the signal 104 of the specific gravity meter is output to the water replenishment controller 40. There is. The water replenishment control unit 40 calculates the concentration of the treatment liquid in the treatment tank 36 based on the specific gravity value indicated by the signal 104 from the hydrometer 38, and when the concentration exceeds a predetermined value, a replenishment command signal. 106 is output. This signal 106 is output to the electromagnetic valve 20, and the electromagnetic valve 20 is opened in accordance with the signal 106, and as a result, replenishment water from the water tank 14 is poured toward the processing tank 36. In this case, the water replenishment control unit 40 obtains an appropriate water replenishment amount based on the calculated concentration value, and the required amount of replenishment water is supplied to the treatment tank 36.

Here, as described above, in replenishing replenishing water, the replenishing water is poured into each guide roller (for example, 30) and the guide roller is washed.

Therefore, even if crystals due to the drying of the treatment liquid adhere to the guide roller, such crystals can be washed and removed by the supplementary water. As a result, for example, the film 100 can be conveyed smoothly and the film 100 can be prevented from being damaged.

FIG. 6 shows a modification in which a plurality of nozzles (for example, two nozzles 12) are provided for one rack 18. By providing a plurality of nozzles in this manner,
All the guide rollers can be washed smoothly.

The nozzle arrangement as in this embodiment is
It is not always necessary to perform it for all the processing tanks, and it is sufficient to dispose the processing solution at a location where a processing solution such as a color developing solution that easily causes crystals adheres.

[0035]

As described above, according to the present invention,
The water replenishment controller can automatically replenish the replenishment water, and the guide roller can be washed using the replenishment water to clean and remove crystals.

Therefore, it is possible to always keep the concentration of the processing liquid constant and avoid defective development, and to ensure smooth conveyance of the film or photographic paper, which is the object of development, in the apparatus.

[Brief description of drawings]

FIG. 1 is a perspective view showing a schematic appearance of a development processing apparatus according to the present invention.

FIG. 2 is a partially enlarged view showing a configuration of a main part of the development processing apparatus 10 shown in FIG.

FIG. 3 is a sectional view of the rack 18 as seen from the front.

FIG. 4 is a cross-sectional view of the rack 18 seen from the side.

FIG. 5 is a block diagram showing a configuration of a water replenishment system.

FIG. 6 is a diagram showing a modified example relating to the arrangement of nozzles 12;

[Explanation of symbols]

 10 Development Processing Device 12 Nozzle 25 Turn Guide 26, 28, 30, 32 Guide Roller 100 Film

Claims (1)

[Claims] 1. A tank in which an object to be developed is put in and taken out,
In a development processing apparatus including a processing tank containing a predetermined processing solution, and a guide roller provided above the processing solution and for guiding the movement of the development target, a water tank for containing makeup water A specific gravity meter provided in the development processing tank, a water replenishment control unit that performs replenishment control of replenishment water to the processing tank based on the specific gravity indicated by the specific gravity meter, and is provided above the guide roller, A replenishing water nozzle for flowing replenishing water to be replenished to the treatment liquid from a water tank, the replenishing water being replenished into the treatment tank while cleaning the guide roller. Processing equipment.