JPS6037560Y2 - Processing liquid heating device in developing machine - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an automatic film developing machine that fully automatically carries out a series of steps for unprocessed photographic film, such as X-ray film, from development to fixing and washing with water.

By the way, when developing a film, it is said that it is better for the developing solution or fixing solution to circulate and flow than to stand still, from the viewpoint of promoting development, and that the solution is kept at a constant temperature rather than at room temperature or colder than room temperature. Heating to this temperature accelerates the development process and increases work efficiency.

For this reason, in this type of developing machine, it has been common practice to circulate the liquid in the tank with a pump and heat it with a heater.
As shown in the figure, the wall of liquid tank A is made double hollow and liquid (water) B is placed inside it, and a heater C is inserted into the hollow part to indirectly heat the liquid in the liquid tank. Or, as shown in Fig. 5, a circulation pipe E equipped with a pump P is passed through the heater F.
Generally, a liquid sealed in a heater F is heated by a heater G, and the liquid in a liquid tank H is heated while being circulated by a pump P.

In addition, in the case where an electric heater or the like is attached to a part of the circulation pipe in order to circulate the liquid, the bottom of the main body side and the liquid tank are integrated and cannot be separated from each other, so disassembling and reassembling takes time and requires a lot of maintenance and inspection. There are disadvantages associated with difficulties.

The present invention is an improvement on the conventional drawbacks.

The details will be explained below with reference to the embodiment shown in the drawings. In an automatic film developing machine in which the film 1 is developed by being passed through the processing liquid in the liquid tank 2, a heating tube 3 that circulates the liquid in the liquid tank 2 is used. and a heat conductive plate 4 close to the heating tube are provided at the bottom of the liquid tank, and a heater 6 that can be brought into and out of contact with the heat conductive plate 4 is provided on the base 5 side of the liquid tank. The tank 2 and the base 5 are separable, and a circulating fluid piping system including a heating tube is installed on the liquid tank 2 side, and a heater wiring system including a heater 6 is installed on the base 5 side. It is something to do.

Figure 2 shows a fully automatic type that performs development, fixing, and washing in succession. Film 1 is guided by rollers 7 and sent out through developer solution 8, fixer solution 9, and washing water 10. The treated material is dried to complete a series of treatments.

An inlet 11 and an outlet 12 are provided at the bottom of each liquid tank 2 for the developer and fixer, and are connected by a pipe 13, with a heating pipe 3 in the middle.
will be established.

The heat conduction plate 4 is in contact with the heating tube 3 so as to cover it from above, and is supported by a support 14 suspended from the bottom of the liquid tank.

The heater 6 is supported in contact with a heating plate 15 which also serves as an underframe on the base 5, and upon receiving the heat of the heater 6, the heating tube 3 is sandwiched between the plates 4 and 15 and heated from both upper and lower surfaces.

A pump 16 is provided in each liquid tank 2, and when the motor 17 starts, the signal is transmitted to the pump shaft 21 via the drive shaft 18 and chain wheels 19, 20, and the impeller in the pump casing rotates. The liquid is sucked in from one side and discharged to the outlet 12.

The liquid discharged to the outflow port 12 passes through the heating tube 3 from the pipe 13, returns to the liquid tank 2 through the inflow port 11, and thereafter circulates in sequence.

In such a state, when the heater circuit is turned on and the heater 6 is operated, the heat generated is transmitted from the heating conduction plates 4 and 15 to the heating tube 3, and the liquid passing through the heating tube 3 is accordingly heated. The liquid in the liquid tank 2 is heated immediately upon starting and reaches a predetermined temperature instantaneously.

When the liquid tank 2 attached to the main body case 22 is removed from the base 5 for maintenance inspection, disassembly and cleaning, etc., the circulating fluid piping system including the heating tube 3 and the heat conduction plate 4 is located on the liquid tank 2 side, and the circulating fluid piping system is located on the base 5 side. The heater wiring system including the heater 6 is separated from each other.

As described above, the present invention provides the liquid tank and the bottom base of the main body case so as to be separable, and also includes a liquid circulation pipe, a heating pipe provided in the middle of the pipe, and a heat conductive plate circumscribing the heating pipe. The heater is integrally fixed so as to be exposed on the outside of the bottom of the liquid tank, and a heater is detachably fixed to the corresponding base side so as to fit into the heat conduction plate when set. The circulating fluid piping system can be installed separately on the liquid tank body side, and the heat source heater wiring system can be installed on the bottom base side. When assembling, simply set both in position and the heater on the bottom base side will heat up. Since it can be fitted to the conductive plate, it is very easy to assemble and disassemble, and has excellent practical effects such as maintenance and inspection being simple and quick, easy to handle, and inexpensive.

[Brief explanation of the drawing]

FIG. 1 is a front view of a developing machine implementing the device of the present invention, FIG. 2 is a side view of the same, and FIG. 3 is a plan view, all of which partially show cross sections. 4 and 5 are cross-sectional views of the conventional device. 1...Film, 2...Liquid tank, 3...
... Heating tube, 4 ... Heat conduction plate, 5 ...
...Base, 6... Heater.

Claims (1)

[Scope of utility model registration request] In an automatic film developing machine that develops a film by introducing the film into a liquid tank in which processing liquid is sucked out by a pump and circulated through a heated ball, the liquid tank and the bottom base of the main body case are provided so as to be separable. At the same time, the liquid circulation pipe, a heating pipe provided in the middle thereof, and a heat conductive plate circumscribing the heating pipe are integrally fixed so as to be exposed outside the bottom of the liquid tank, and the corresponding base side is provided. A processing liquid heating device for a developing machine, characterized in that a heater is removably fixed so as to fit into the heat conductive plate when set.