JPH1062941A - Automatic processing system for photosensitive materials - Google Patents

Abstract

(57) [Abstract] [Problem] To prevent dirt on a side plate of a processing rack in a washing tank, and to overflow and drain only dirty old washing water as much as possible. The present invention provides an automatic developing apparatus for photosensitive material, which is filled in the inside thereof, increases the washing efficiency, ensures high-quality washing, and downsizes the apparatus. SOLUTION: A rack provided with a transport roller for transporting the photosensitive material in each of the developing, fixing, and rinsing processing tanks is provided in the processing tank, and a conduction path for overflow is provided above a side plate of the rack. An automatic developing apparatus for photosensitive material, comprising a washing tank, which is a processing tank for supplying water from the bottom of the processing tank among the processing tanks.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a processing apparatus for transporting and developing a belt-like material such as a wet film base, and more particularly to a developing, fixing and washing process while transporting a silver halide photographic material. The present invention relates to a photosensitive material automatic development processor.

[0002]

2. Description of the Related Art In an automatic developing apparatus for black-and-white photographic materials, a developing tank, a fixing tank, and a washing tank are arranged in this order, and in an automatic developing apparatus for color photographic materials, color development is performed. A tank, a bleach-fixing tank or a bleaching tank and a fixing tank, a stabilizing tank, or a washing tank are arranged in this order, and a drying unit is provided following the washing or stabilizing treatment. Then, the photosensitive material is conveyed through each processing tank and the subsequent drying section, and is finished and collected. At this time, the washing tank or the stabilizing tank was supplied with water from the upper part of the treatment tank, and the washing water was discharged from the overflow port provided at the upper part.

[0003]

However, the dirt floating in the water supply is discharged out of the machine through the overflow pipe. However, the dirt in the rack side plate is discharged outside the machine unless the water in the washing tank is drained. Not emitted. Until now, as mentioned above, water was supplied to the washing tank from the top, and the water was treated by overflowing from the overflow port provided at the top, but in this method, the newly supplied water immediately overflowed. There is a high possibility that not only the supplied washing water is not effectively used, but also that the washing efficiency is not good. In other words, the water in the lower part of the washing tank is unlikely to overflow, and in order to make the fresh treated water in the tank uniform, a pump for circulation and its piping are required, which not only increases the cost but also increases the cost of the equipment. Has led to an increase in size. SUMMARY OF THE INVENTION An object of the present invention is to provide an automatic photographic material processing apparatus which solves the above problems.

[0004]

This object is achieved by the following technical means.

A rack provided with a transport roller for transporting the photosensitive material in each of the developing, fixing, and washing processing tanks is provided in the processing tank, and a conduction path for overflow is provided above a side plate of the rack. An automatic developing apparatus for photosensitive material, comprising a washing tank, which is a processing tank for supplying water from the bottom of the processing tank.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below in detail, but embodiments of the present invention are not limited thereto.

FIG. 1 is a side sectional view showing an outline of an automatic development processor for a silver halide photographic material as one embodiment of the present invention.

The developing tank 22 in the developing section, the fixing tank 24 in the fixing section, the washing tank 26 in the washing section, and the drying section 2
8 are arranged in order, and bridging sections 23 and 25 are provided between the processing tanks 22, 24 and 26, and a washing tank 26 and a drying section 28 are provided.
Between them, a squeeze portion 27 is provided.

The photosensitive material is fed from the inlet 21 to the developing tank 22, and the photosensitive material passes through the developing tank 22 as shown by the arrow and reaches the crossover portion 23, where at least one pair of the provided photosensitive members is provided. The developer is squeezed out by the opposing roller pair A and enters the fixing tank 24, passes through the fixing tank 24 as shown by the arrow, reaches the crossover section 25, and at least one pair of opposing sections provided there. The fixing solution is squeezed out by the roller pair B, enters the washing tank 26, passes through the washing tank 26 as shown by the arrow, reaches the squeeze section 27, and is dried by a plurality of opposed squeeze roller pairs C provided there. The previous moisture is squeezed out and enters the drying section 28, and is dried by the drying air blown by the heat source and the blower while being conveyed in the drying section 28 by the plurality of opposed roller pairs D provided therein. It is discharged from the outlet 29 as indicated by arrows.

Here, an example of the embodiment of the washing tank 26 is shown in a front sectional view of FIG. 2 and a top view of FIG. That is, the rack 260 is provided with the both side plates 261, 26 in the washing tank 26.
2 is connected by a plurality of stays (not shown), and is suspended from the upper part of the washing tank 26 so as to be detachable.
In the rack, a plurality of pairs of rollers are provided so that a photosensitive material transport roller 263 sandwiches and transports the photosensitive material. A drive transmission gear 264 is concentrically connected to one side of one roller of each roller pair, and an idle gear 264A is provided between the drive transmission gears 264 so as to mesh therewith to form a gear train. Is provided with a drive gear 265 connected to a drive motor, and the photosensitive material is washed by a pair of rollers while being transported in a washing tank 26 filled with washing water.

On the other hand, the water supply pipe 2
66 is set such that the tip of the pipe reaches the bottom of the washing tank 26, and a tip near the bottom is provided with a discharge hole 266A in the pipe surface, so that the water supplied into the pipe from above is formed. Is supplied into the tank from the discharge hole 266A.

On the other hand, the overflow water is drained by an overflow pipe 267 provided outside one side plate 261 of the rack 260.

An overflow port 267A is provided at an upper portion of the overflow pipe 267, and a discharge port 2 is provided at a lower portion thereof.
67B are provided.

The side plates 261 and 262 of the rack 260 having the same height as the overflow port 267A are provided with conduction paths 261A and 262A.

When the replenishing water is supplied into the washing tank 26 from the discharge hole 266A of the water supply pipe 266 in this manner,
Part of the washing water that has entered from the front passes through the inside and outside of the rack from below to the overflow port 267A, and for the new supply water, part of the water in the old tank is sequentially discharged from the overflow port 267A. go.

The positions of the discharge port 266A and the overflow port 267A are as shown in the top view of FIG.
When viewed from above, it is provided at a diagonal direction and at the uppermost position from the lowermost position.

Thus, the rack 26 in the washing tank 26 is
0 along the inner or outer surface of both side plates 261, 262,
Since a water flow from the discharge port 266A to the overflow port 267A occurs, and the water flowing along the inner surfaces of the both side plates 261 and 262 passes through the upper conduction paths 261A and 262A to the overflow port 267A. Water always flows without stagnation on the inner and outer surfaces of the both side plates, and the both side plates are always in a washed state, and it is difficult for water scale and the like to accumulate. Therefore, the inside of the washing tank 26 is always maintained so that the washing water in a clean allowable range is filled.

FIG. 4 shows another example of the embodiment of the present invention.
The front end of the water supply pipe 266 at the position reaching the bottom of the washing tank 26 is bent into an L-shape, and the end of the pipe 266 is formed as a discharge hole 266B. The supply water is arranged so as to be directed upward from the bottom of the washing tank 26 through various paths. The effect of the water flow is almost the same as in the previous example,
Since the water flow flows along the inside and outside of the side plates 261 and 262 of the rack, the inside and outside of the side plates 261 and 262 are not easily stained.

As another example of the embodiment of the present invention, as shown in the front sectional view of FIG. 5, the end of the water supply pipe 266 is sunk to a position reaching the bottom of the washing tank 26.
A plurality of discharge holes 266D extend from a position near the end of the pipe to a position slightly lower than the water surface position of the washing tank 26 from a position near the end, and the size of the opening diameter of the washing tank 2 is reduced.
6 is arranged so as to be larger as it is closer to the lower part. In this manner, the washing water in the washing tank 26 is constantly maintained in a state of high washing effect within a clean allowable range since the dirty and old washing water is gradually discharged.

On the other hand, in a method of supplying new water to the upper portion of the washing tank 26 as in the conventional washing tank 26 shown in the front sectional view of FIG. 6, the new water tends to overflow as it is, Most of the washing water in the inside of the washing tank becomes more and more dirty.
In order to maintain the freshness of the washing water in the tank, the washing tank of the automatic processing apparatus for photosensitive material of the present invention is much simpler, the cost is reduced, and good quality washing is performed. Is performed efficiently.

[0021]

According to the present invention, the washing efficiency in the washing tank is improved, and the washing can be sufficiently performed in a short time. In addition, since it is not necessary to particularly provide a device such as a circulating means, the structure can be simplified, the manufacturing cost can be reduced, and the device can be downsized.

Further, by providing a conductive path in the side plate of the flushing rack, water flow inside and outside the rack side plate occurs moderately, dirt on the rack side plate is less likely to stagnate and efficiently overflows, the rack is always kept clean, and the flushing water is always clean. Is held.

[Brief description of the drawings]

FIG. 1 is a side sectional view showing an outline of an overall embodiment of a photosensitive material automatic developing apparatus of the present invention.

FIG. 2 is a front sectional view showing an example of an embodiment of a washing tank used in the present invention.

FIG. 3 is a top view showing an example of an embodiment of a washing tank used in the present invention.

FIG. 4 is a front sectional view showing another example of the embodiment of the washing tank used in the present invention.

FIG. 5 is a front sectional view showing another example of the embodiment of the washing tank used in the present invention.

FIG. 6 is a front sectional view showing a washing tank of a conventional automatic processing apparatus for photosensitive material.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 21 Inlet 22 Developing tank 23, 25 Transition part 24 Fixing tank 26 Rinse tank 27 Squeeze part 28 Drying part 29 Outlet 41 Stirrer 42 Drive mechanism 260 Rack 261,262 Side plate 261A, 262A Conduction path 263 Conveyance roller 264 Gear 264A Idle gear 265 Drive gear 266 Water supply pipe 266A, 266B, 266D Discharge hole 267 Overflow pipe 267A Overflow port 267B Discharge port

Claims (1)

[Claims] 1. A rack provided with a transport roller for transporting a photosensitive material in each of a developing, fixing, and rinsing processing tank is provided in the processing tank, and a conduction path for overflow is provided above a side plate of the rack. An automatic developing apparatus for photosensitive material, characterized by having a washing tank which is a processing tank for supplying water from the bottom of the processing tank among the processing tanks.