JPS62215955A - Automatic developing apparatus - Google Patents

Abstract

PURPOSE:To completely discharge a residue in a heat exchange and a circulating filter by disposing a bypass pipe at a downstream of a circulating circuit. CONSTITUTION:In processing of the photographic film, the processing solution is circulated via the circulating filter 4 and the heat-exchanger 5 by closing a switch cock 8. When the fatigue of the processing solution is observed, and the exchange of the processing solution is necessary, the processing solution is removed from the processing tank 1 by operating the switch cock 8 and rotating a discharging cock 10. Thus, as a branch pipe 9 attached the switch cock is disposed at a position lower than those of the circulating filter part 4 and the heat exchanging part 5, etc., which are easy to stay the processing solution, the processing solution staied in parts of a diffuser 7, the heat exchanger 5 and the circulating filter 4 is completely discharged is exchanging the processing solution in the processing tank.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to an automatic processing apparatus for developing photographic light-sensitive materials, and more particularly to an automatic processing apparatus for X-ray film.

[Prior Art] As shown in Fig. 3, an automatic processor for processing photographic materials has processing tanks for development, fixing, washing, etc. arranged in an array, and after the photosensitive film passes through these processing tanks, it passes through a drying section. It is then dried and discharged from the discharge section.

In the developing and fixing process, the finished image on the film is affected by the processing temperature, so it is necessary to control the temperature of the liquid in each processing tank and maintain uniformity of the liquid temperature in the processing tank. A pump is used to circulate the water, which is heated by a heat exchanger and returned to the processing tank. Fig. 2 is a schematic diagram showing an example of a conventional treatment liquid circulation route, in which the treatment liquid is sent to the filter section by a pump P, and is blown out from the outlet into the treatment tank via a heat exchanger with a heater. It is sucked in from the suction port of the tank and circulated to the pump P.

The temperature of the liquid is maintained constant through this liquid circulation path, and a heat exchanger is installed at a position lower than the circulation filter and the outlet. A drain cock is installed at a lower position than the processing tank, heat exchanger, etc. Therefore, when draining liquid, the liquid in the piping of various engines can flow downward and be completely discharged, but some of it often remains at the outlet or part of the filter, based on Figure 2. To explain, since the drain cock IO is simply provided below the connection part from the pump 3 at 4 degrees of the supply pipe from the circulation pump 3 to the circulation filter 4 in the circulation route, when the drain cock IO is opened, the process is completed. Although the treated liquid in the tank 1 can be completely discharged via the pump 3, residues of the treated liquid remain in the heat exchanger 5, the blow-off lower part, and the supply portion of the circulation filter 4 to the heat exchanger 5. do.

Therefore, if a new processing solution is supplied while the old solution remains, it will adversely affect the performance of the photographic film being processed.Also, if the cleaning water is circulated before supplying the new solution, and then the processing solution is supplied, the processing In some cases, the solution was diluted, resulting in insufficient film development.

[Problems to be Solved by the Invention] In order to overcome these conventional drawbacks, the inventors of the present invention have conducted many years of research and have found that when treating wastewater, not only the residue inside the piping, but also the inside of the circulation filter and the outlet They have discovered an automatic processing device that can completely discharge residual liquid such as.

[Means for Solving Problem 1] The present invention improves the above-mentioned drawbacks, and therefore, a drain is provided in the supply path to the heat exchanger for the processing solution that circulates through processing tanks such as the developer tank and the fixing tank. This invention relates to an automatic developing processing apparatus in which a branch pipe is connected to the branch pipe, the branch pipe is arranged below a processing tank, a filter section, and a heat exchanger, and a switching cock is provided on the branch pipe.

The automatic processing apparatus of the present invention has a branch pipe with a switching cock located at a lower position than the circulation filter section, heat exchanger section, etc. where processing liquid tends to accumulate, so a drain cock is installed in the conventional supply pipe. When replacing the processing liquid in the processing tank, it was possible to completely remove old liquid without leaving it in the outlet, circulation filter, etc.

The present invention will be explained below based on specific examples shown in the drawings, but the present invention is not limited thereto.

FIG. 1 is a schematic diagram summarizing the processing solution circulation path of the automatic processing apparatus of the present invention, where l is a processing tank filled with a developer and a fixer. 2 is the processing tank! A circulation pump 3 is disposed at 2° of this pipe and connected to a supply pipe 4° to the circulation filter part 4 at a suction port for draining liquid provided at the bottom of the pipe. Reference numeral 5 denotes a heat exchanger connected to the circulation filter section 4 through a pipe of 5 degrees, and has a built-in heater 6. A branch pipe 9 to a drain pipe is provided at 5° of the pipe, and a switching cock 8 is provided in this branch pipe 9. The branch pipe 9 of this bypass is higher than the position of the pump 3;
The circulation filter section 4 is arranged at a lower position than the heat exchanger 5. The processing liquid supplied from the circulation filter section 4 is heated by the heat exchanger 5 and then processed from the blowout lower opening into the processing tank 1. 41. On the other hand, a drain cock 10 is provided at the supply pipe 4° from the circulation pump 3 to the circulation filter part 4.

The circulation filter section 4 filters impurities, dregs, etc. dispersed in the processing liquid, and supplies the processing liquid free of dispersed matter to the processing tank 1.

The automatic processing apparatus of the present invention is configured to close the switching cock 8 and circulate the processing liquid via the circulation filter 4 and the heat exchanger 5 during the processing of photographic film.
it A(A Q h kn E k A J'!
ta + W When necessary, the switching cock 8 is operated to open and the drain cock IO is rotated to remove the processing liquid from the processing tank 1. At this time, blowout lower, heat exchange 7! i
, 5 and part of the processing liquid in the circulation filter 4 can also be completely discharged.

[Effects of the Invention] Since the automatic development processing apparatus of the present invention has the bypass pipe disposed below the circulation path, it is possible to completely drain residues in the heat exchanger and the circulation filter.

[Brief explanation of drawings]

Fig. 1 is a schematic diagram showing the circulation path of the automatic processing device of the present invention, Fig. 2 is a diagram showing the conventional circulation path, Fig. 3 is a schematic diagram showing the internal mechanism of the automatic processing device, and Fig. 4 is a diagram showing the conventional circulation path. FIG. 2 is an explanatory diagram showing the piping state of the automatic development processing apparatus of the present invention. 1 is a treatment tank 4 is a circulation filter section 5 is a heat exchanger 5° is a pipe 8 is a switching cock 9 is a branch pipe 10 is a drain cock Applicant Konishiroku Photo Industry Co., Ltd. Figure 3

Claims (1)

[Claims] A branch pipe for drainage is connected to the supply path for processing liquid circulating through processing tanks such as a developing tank and a fixing tank to a heat exchanger, and the branch pipe is connected to a position below the processing tank, filter section, and heat exchanger. An automatic developing processing apparatus characterized in that the branch pipe is provided with a switching cock.