JPH0627940B2 - Automatic developing device - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic developing device for a light-sensitive material, and more particularly to an automatic developing device capable of preventing water stains from being generated in washing water in a washing step.

[Prior Art] X-ray photographic light-sensitive materials and printing photographic light-sensitive materials are often processed by an automatic developing device when developed after exposure.
That is, in a developing tank, a fixing tank, a water washing tank, etc., development processing is carried out through the steps of development → fixing → water washing → drying. In the washing tank, supplemental washing water is supplied and overflow washing water is discharged. In particular, during the processing of the light-sensitive material, the replenishing rinsing water is supplied to improve the rinsing efficiency. When developing is carried out using such an automatic developing apparatus, it is usually desirable to drain the water from the washing tank at the end of daily work in order to prevent the generation of scale.

[Problems to be Solved by the Invention] However, in a facility such as an emergency designated hospital where X-ray imaging is performed urgently and the result is required, the automatic developing device can always be processed for development (standby state). ) Should be kept. In such a case, the washing water cannot be drained and must be used continuously.
If the washing water is not drained for a long time, water stains will be generated in the washing tank, causing various problems. That is, when the photographic film is processed, water stains adhere to the film surface, which hinders the taking of photographs, and when the film passes through the rinsing tank, slip development occurs in the rinsing rack, causing a transport failure accident. Get up. Furthermore, if the washing tank and the washing rack become dirty and cleaning is troublesome, and if a solenoid valve is used for the water pipe, water stains will block the solenoid valve, the washing water cannot be sent or the replenishing washing water is It causes various problems such as being unable to stop.

The same applies to the development processing of the photographic light-sensitive material for printing by the automatic developing device.If the washing water is carried in the washing tank the next day, scales accumulate, and the rack becomes dirty and adheres to the film surface. An accident happens. However, the management of draining the washing water every day is troublesome as described above, and there is still a problem from the workability and the economical efficiency of the water that if the water is drained every day, it cannot be developed immediately in the next morning.

In particular, without using a large amount of wash water for replenishment, wash the water using the accumulated water in the wash tank, and attach it to the film and take it to the next process, or the shortage of water due to evaporation, etc. Such a problem is great in the method of replenishing slightly more water.

The scale is mainly a filamentous bacterium, and a suspended suspended substance in water is attached to the scale to form a so-called null form. Therefore, by sterilizing the filamentous bacteria, which is the center of the bacteria, it is possible to prevent the generation of scale.

Therefore, by putting various antibacterial agents into the aquarium,
It is possible to prevent the generation of scale.

However, when the antibacterial agent is put into the washing tank, the operator holds the tank containing the antibacterial agent and puts the antibacterial agent into the washing tank, which makes this work complicated. Also, the operator may forget to supply the antibacterial agent. In this case, there is a problem that scale is generated in the washing tank.

In view of the above facts, an object of the present invention is to automatically supply a predetermined amount of antibacterial agent into the washing treatment tank to obtain an automatic developing apparatus in which no water stain is generated in the washing treatment tank.

[Means for Solving the Problems] In order to achieve the above-mentioned object, the present invention provides an automatic transfer system in which an exposed light-sensitive material is sequentially transferred to a developing tank, a fixing tank and a washing tank to automatically develop the light-sensitive material. A developing device, which is an antibacterial agent supplying means for supplying an antibacterial agent to the water washing tank, and the antibacterial agent supplying means is operated to stop a predetermined amount of antibacterial agent after the supply of supplemental washing water to the water washing tank is stopped. And a control means for supplying a fungicide to the water washing tank.

[Operation] According to the present invention, after the processing of the light-sensitive material is finished, the antibacterial agent supplying means is operated by the control means, and a predetermined amount of the antibacterial agent is automatically supplied to the washing tank. As a result, no scale is produced in the washing tank. In addition, since the control means automatically supplies the antibacterial agent into the washing tank after the processing of the light-sensitive material is completed, the operator does not forget to put the antibacterial agent into the washing tank, and the antibacterial agent is surely supplied to the washing tank. It can be done and does not cause water stains.

This supply is performed after the supply of replenishing wash water into the washing tank is stopped, so the supplied antibacterial agent is being processed from inside the washing tank until the next photosensitive material processing is started. It will not be discharged by overflow together with the wash water replenished with.

For example, supply of this antibacterial agent is for replenishment, such as when the processing solution is preheated (after preheating) after the operation of the automatic development device is stopped after the development is completed or until the next development processing is started after the development is completed. It is supplied during the period when the washing water is not supplied.

As the antibacterial agent in the present invention, for example, aminopolycarboxylic acids can be used, and specific examples of the aminopolycarboxylic acids include ethylenediaminetetraacetic acid (EDTA), diethylenetriaminepentaacetic acid, ethylenediamine-N- (β- Oxyethyl) -N, N ',
N'-triacetic acid, propylenediaminetetraacetic acid, nitrilotriacetic acid, dichlorohexanediaminetetraacetic acid, iminodiacetic acid,
Alkyliminodiacetic acid, dihydroxyethylglycine,
Ethyl ether diamine tetraacetic acid, glycol ether diamine tetraacetic acid, ethylenediamine tetrapropionic acid, phenylenediamine tetraacetic acid, 1,3-diamino-2-propanol tetraacetic acid, triethylenetetramine hexaacetic acid, hydroxyethyliminoacetic acid, oxybis (ethyleneoxy Examples thereof include nitrilo) tetraacetic acid, malic acid, and sodium salts and potassium salts of these polycarboxylic acids (Japanese Patent Application No. 61-187909, 61-63030).
No. 61-51396, 60-253807, 60
-295894).

[Embodiment of the Invention] FIG. 2 shows an automatic developing apparatus 10 to which the present invention is applied. A developing tank 26, a fixing tank 28, and a water washing tank 30 are provided in a machine frame 24 of the automatic developing device 10, and the film 14 inserted from the insertion table 2 is sequentially dipped and conveyed to them by a plurality of conveying rollers 12. It is then taken out, dried in the drying section 32 with warm air, and then taken out onto the discharge section 4.

As shown in FIG. 1, one side wall 30 of the washing tank 30
A is formed lower than the other side wall. Outside the one side wall, there is provided an overflow tank 34 in which the wash water overflowing the side wall from the wash tank 30 is stored. The overflow tank 34 is in communication with one end of a conduit 36 that penetrates the bottom. The other end of the conduit 36 communicates with the pump 38. The pump 38 has a conduit 4
0 and 42 are connected to each other, a heat exchanger 44 is provided in the pipeline 40, and a heat exchanger 46 is provided in the pipeline 42. The development is circulated by a circulation pump (not shown). The liquid and the fixing liquid are heat-exchanged with the wash water overflowing the wash tank 30 and cooled to a predetermined temperature. The rinse water after heat exchange is discharged to the outside of the machine as waste water.

Further, a water receiving tank 48 is arranged adjacent to the water washing tank 30. One end of a pipeline 50 is open to the water receiving tank 48. The other end of the pipeline 50 is connected to a faucet 54 for water supply via a solenoid valve 52 on the way. As a result, tap water is supplied to the water receiving tank 48. The level sensor 15 is provided in the water receiving tank 48, and the solenoid valve 52 is opened and closed so as to maintain the liquid level at a predetermined height.

Further, one end of the pipe line 56 communicates with the water receiving tank 48 through the bottom portion. The other end of the pipe line 56 communicates with the washing tank 30 on the way. As a result, the water in the water receiving tank 48 is supplied into the water washing tank 30, and the height of the water surface in the water washing tank 30 and the height of the water surface in the water receiving tank 48 are kept the same.

Below the washing tank 30, a concave portion 60A is partially inwardly depressed.
A machine frame 60 in which is formed is provided, and the machine frame 24 and the machine frame 24 shield the inside of each processing tank. Therefore, even if the cover 62 is opened, the processing tank is reliably shielded from the outside.

In the recess 60A, the antibacterial agent supplement tank 64 is provided on the cover 62 side.
Is placed to contain the antibacterial agent. One end of a pipe line 66 is inserted into the antibacterial agent supplement tank 64 from an opening 80 (see FIG. 3A) of the antibacterial agent supplement tank 64. The other end of the pipe line 66 is opened to the washing tank 30 via a pump 68 on the way.

Further, a cartridge 70 is connected to the antibacterial agent replenishing tank 64 so that the antibacterial agent replenishing tank 64 is replenished with the antibacterial agent.

An opening 80 into which the conduit 66 of the antibacterial agent supplement tank 64 is inserted
Is open to the atmosphere, and a level sensor 82 is attached to the opening edge.

Further, in the vicinity of the opening 80, as shown in FIG. 3 (A), a middle portion of the antibacterial agent replenishing tank 64 is a concave portion 84 having a small cross-sectional area. A sleeve 86 is provided in the recess 84.
Are integrally projected. As shown in FIG. 3B, a small diameter cylinder 88 is coaxially arranged at the axial center of the sleeve 86, and the small diameter cylinder 88 is provided between the small diameter cylinder 88 and the inner peripheral portion of the sleeve 86. Bracket 9 that projects radially
0 is passed over. The tip of the small diameter cylinder 88 is the sleeve 8
An inclined surface 92 that projects from 6 and inclines obliquely to the axis.

On the other hand, the cap 96 is screwed onto the outer periphery of the neck 94 of the antibacterial agent card sleeve 70. A tip portion of the cap 96 is a flat plate portion 96A bent at a right angle, and a flat seal plate 98 is sandwiched between the flat plate portion 96A and the tip portion of the neck portion 94.

Therefore, the antibacterial agent Cartridge 70 is used as the antibacterial agent replenishment tank 6
The cap 96 is attached to the seal plate 9 before mounting to
8 to the tip of the neck 94 by crimping the antimicrobial agent Cartridge 7
The inside of 0 is blocked from the outside so that the antibacterial agent inside does not leak out.

However, when the neck portion 94 is inserted into the sleeve 86 as shown in FIG.
Since the inclined surface 92 of the small diameter cylinder 88 is inserted into the antibacterial agent cartridge 70 through the opening 96B of the flat plate portion 96A, the small diameter cylinder 88 penetrates the seal plate 98 and the small diameter tube 88 connects the antibacterial agent cartridge 70 to the antibacterial agent replenishment tank 64. It is designed to communicate.

Therefore, the antibacterial agent in the antibacterial agent replenishing tank 64 enters the antibacterial agent replenishing tank 64 as shown in FIG. 3 (A) and forms the liquid surface 102 near the opening 80. However, when the antibacterial agent is sucked out by the pipe line 66 and the liquid level 102 becomes lower than the vicinity of the sleeve 86, the outside air enters the antibacterial agent cartridge 70 through the opening 80. Is supplied into the antibacterial agent replenishment tank 64 by the amount of the outside air that has entered. Therefore, the liquid level 102 is always maintained at a constant level.

A pump 68 provided in the middle of the pipeline 66 is connected to the control device 21 so that the timing of supplying the antibacterial agent to the washing tank 30 is controlled.

The control device 21 includes a pump 38, heat exchangers 44, 4
6, the solenoid valve 52, and the pump 68 are connected to each other so that their operation timings are controlled.

Next, the operation of this embodiment will be described.

The film 14 is inserted from the insertion table 2, and the insertion is detected by the insertion detection sensor 13.

The film 14 is sandwiched by a plurality of transport rollers 12 and sent out to the automatic developing device 10. The film 14 passes through a developing tank 26, a fixing tank 28, and a washing tank 30, and is subjected to a developing process. 4 is taken out.

When the temperature of the processing liquid in the developing tank 26 and the fixing tank 28 rises during this developing process, the temperature rise is detected by a detector (not shown), and the pump 38 is operated by the control device 21. The developing solution and the fixing solution circulated by a circulation pump (not shown) are heat-exchanged with each other via the heat exchangers 44 and 46, whereby the temperature of the processing solution in the developing tank 26 and the fixing tank 28 is controlled to a predetermined temperature.

Further, the water level in the water receiving tank 48 is detected by the level sensor 14 and the electromagnetic valve 52 is opened / closed by the control device 21 so that the water level in the water receiving tank 48 becomes a predetermined level, thereby supplying or stopping the tap water. Washing water is supplied from the water receiving tank 48 to the washing tank 30.

Here, the supply of the antibacterial agent to the washing tank after the development processing is completed will be described with reference to FIGS. 4 and 6.

As shown in FIG. 6, in step 100, it is judged whether the operation switch of the developing unit is turned off, and the solenoid valve 5
2 is closed and the supply of tap water to the water receiving tank 48 is stopped. The supply of the wash water overflowing from the wash tank 30 to the heat exchangers 44 and 46 is also stopped by stopping the pump 38. Then, in step 102, pump 68
Is operated for a predetermined time, and the antibacterial agent replenishment tank 64 to the washing tank 3
0 to a specified amount of antibacterial agent (for example, 5 cc per wash water)
Is supplied. In this case, the supply of tap water to the washing tank 30 is stopped and no overflow occurs, so that the antibacterial agent is added to the washing tank 3
It does not flow out of 0.

At step 104, the operating time t of the pump 68 is counted. In step 106, it is determined whether or not this operation time t has passed a predetermined time T ₁ .

The predetermined time T ₁ is a constant value according to the amount of washing water in the washing tank. If the result in step 106 is NO, the process returns to the step 102 and the pump 68 continues to operate. If affirmative, the main power source of the automatic developing device 10 is turned off in step 108. As a result, the operation of the pump 68 is also stopped.
This resets the operating time t of the pump 68 to zero.

In this way, the operation of the developing device 10 is stopped, and the washing tank 30
Since a predetermined amount of antibacterial agent is automatically supplied into the washing tank 30 after the supply of new washing water to the washing tank 30 is stopped, it is possible to prevent the generation of scale in the washing tank 30 without forgetting to put the antibacterial agent. Can be prevented.

Further, in this supply, when the operation of the automatic developing device 10 is stopped, the pump 68 is automatically operated to supply a predetermined amount of the antibacterial agent into the washing tank 30. Never forget to put the medicine.

Next, another embodiment will be described with reference to FIGS. This embodiment is different from the above embodiment in the operation timing of the pump 68.

As shown in FIG. 5, the operation cycle of the automatic developing apparatus 10 is such that the standby state (standby state) of the automatic developing process (processing of the film 14), standby state (standby state), and preheat state are repeated. Done.

In the standby state (standby state), the temperature of each processing solution is adjusted so that the film 14 can be directly processed by heating with a heater or cooling with a heat exchanger (for example, 35 ° C ±
0.1 ° C. range). Further, during preheating, since the treatment liquid is simply preheated, temperature control is performed within a certain range close to a predetermined treatment temperature (for example, a width of 30 ° to 35 ° C when the predetermined treatment temperature is 35 ° C). Has been done. The preheat mode is a mode for raising the temperature to a predetermined processing temperature within an early time when it is desired to start the processing.

In this embodiment, the pump 68 is used when preheating is performed.
Is activated to supply the antibacterial agent to the washing tank 30.

As shown in FIG. 7, in step 110, it is judged whether or not it is preheat, and if it is not preheat, this judgment is repeated. If it is preheat, pump 6 at step 112.
8 is activated. That is, a predetermined amount (for example, 5 cc per wash water) of the antibacterial agent is supplied after the supply of new wash water to the wash tank 30 is stopped. In this case, since the washing water in the washing tank 30 is not discharged during the preheating, the antibacterial agent does not flow out of the washing tank. Thereby, the concentration of the antibacterial agent in the water washing tank 30 can be maintained at a predetermined amount.
Next, at step 114, the operating time t _{0 of the} pump 68 is
Is counted. This operating time t ₀ is step 116.
Then, it is determined whether or not the predetermined time T ₂ has been reached. If not, the process returns to the step 112 and the operation of the pump 68 is continued. When the predetermined time T ₂ is reached, the operation of the pump 68 is stopped.

Here, the predetermined time T ₂ is a predetermined amount that is predetermined according to the amount of washing water in the washing layer 30.

In this way, since the antibacterial agent is automatically supplied after the development processing is completed, it is not forgotten to put the antibacterial agent into the washing tank 30.

[Effects of the Invention] As described above, in the present invention, a predetermined amount of the antibacterial agent can be automatically supplied into the washing tank after the development processing is completed, and the antibacterial agent is overflowed with the overflow of the washing water. Since it does not flow out, the excellent effect that no scale is produced in the washing tank can be obtained.

[Brief description of drawings]

1 is a sectional view taken along line I-I in FIG. 2, FIG. 2 is a longitudinal sectional view showing an automatic developing device, and FIG. 3 (A) is an enlarged view showing a part of FIG. 3 (B) is an enlarged sectional view showing the connection between the cartridge and the tank, FIG. 4 is a diagram showing the operation timing of the pump, and FIG. 5 is a diagram showing the operation timing of the pump showing another embodiment. FIG. 6 is a flow chart showing the procedure for supplying the antibacterial agent to the washing tank, and FIG. 7 is a flow chart showing another embodiment. 10 ... Automatic developing device, 14 ... Film, 21 ... Control device, 26 ... Developing tank, 30 ... Rinsing tank, 64 ... Antibacterial agent replenishing tank, 66 ... Pipe line, 68 ... Pump, 70 …… Antibacterial agent Cartridge.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Miya Takami 1250 Takematsu, Minamiashigara City, Kanagawa Fuji Machinery Co., Ltd. (56) References JP 61-43749 (JP, A) JP 60-263939 (JP) , A) JP-A-60-189744 (JP, A)

Claims (1)

[Claims] 1. An automatic developing apparatus for automatically transferring an exposed light-sensitive material to a developing tank, a fixing tank, a water washing tank, etc. to automatically develop the light-sensitive material, wherein a germicide is added to the water washing tank. A bacteriostatic agent supplying means for supplying, and a control means for activating the bacteriostatic agent supplying means after the processing of the photosensitive material to supply a predetermined amount of the bacteriostatic agent to the washing tank. Automatic developing device.