JPH028282Y2 - - Google Patents

Description

[Detailed explanation of the invention] This invention achieves agitation of the processing solution by tilting each tank in the front and back and left and right directions in order to obtain uniform development results on the glass dry plate.
This invention relates to a glass dry plate developing device that uses a motor as the power to tilt each tank.

Generally, photographic materials are classified into dry plates coated on glass, films coated on thin films such as polyester, and photographic paper coated on paper, depending on the characteristics of the support coated with the photographic emulsion. When using these photographic light-sensitive materials, a processing step consisting of the following three operations, called development processing, is required after the light-sensitive material is exposed to light. This operation involves first developing the latent image formed on the photosensitive material when exposed to light into a visible image, then stopping the development when the image has the appropriate density. Finally, the fixing operation involves removing the halogen silver from the unexposed areas of the photosensitive material.

In the past, various automatic developing devices have been devised and put into practical use for film and photographic paper, but the developing process for glass dry plates involves pouring a processing solution into a container called a vat and placing the glass dry plate into the liquid. The processing solution was stirred by holding the vat with both hands and tilting the vat back and forth, left and right, and this stirring effect ensured that the dry plate was processed evenly during development, stopping, and fixing. . In addition, there are devices that perform each development step by spraying processing solution with a shower without manual work, devices that perform each development step by spraying processing solution onto a dry plate like a waterfall, or devices that perform each development step by spraying processing solution onto a dry plate. A device has also been devised in which the liquid is stirred by bubbling with an inert gas such as nitrogen gas instead of by immersing the liquid in the liquid and stirring by shaking. However, with traditional manual methods, the development results may vary depending on the person doing the work.
Even when the same person performs the work, there is a drawback that the developing results are not uniform due to differences in the way the bat is swung at the time. In addition, controlling the temperature of the processing solution, which has a large effect on the development result, is difficult because the vat is moved by hand. Moreover, during the developing process, one person had to be devoted to the work at a time, resulting in poor work efficiency.

The present invention was devised in order to eliminate the above-mentioned drawbacks, and provides a glass dry plate developing apparatus in which the development results are always constant and the amount of processing liquid used is small. That is, each processing tank in the developing process is equipped with power from two linear head motors that tilt each tank back and forth and left and right to agitate the processing solution, and this agitation is always constant. It is something to control. In addition, the bottom of each treatment tank has a double bottom, making it a constant temperature water tank.
The temperature of each treatment liquid is maintained constant. The aim is to obtain stability in the development results through these stirring and temperature control actions.

Next, the present invention will be explained with reference to the drawings. The linear head motors 1, 2, 3, 4, 5, and 6 of each tank are rotated under the control of a control device (not shown). The rotational force of these motors is generated by the motor shafts 10, 11, 13,
4, 16, and 17 are converted into forces in the direction of movement in and out of the motor body in the axial direction of the shaft. Through this shaft, the developing tank 7, stop tank 8, and fixing tank 9, which house the glass dry plates, are moved back and forth.
It is tilted left and right to stir each processing liquid. At this time, each tank is supported at three points by the pillars 12, 15, and 18 installed in each processing tank and each shaft of the motor, and the inclination of the tank is set to be controllable.

To explain the swinging state of the processing tank, taking the developing tank 7 shown in FIG. Intermediate 21,
Each shaft 10, 11 is controlled by a lower limit 22, an upper limit 23, an intermediate 24, and a lower limit 25 provided on the motor 2 which provides the power for tilting the shafts forward and backward.
The position of each motor is detected, and the movement of each motor is controlled by the aforementioned control device. The developer tank 7 is oscillated back and forth and left and right in an orderly and regular manner at a constant speed. The process of rocking the tank 7 is as shown in the flowchart of FIG.
In the figure, the front and rear steps end at step 40, and the left and right steps end at step 50. When this process is repeated a predetermined number of times _n0 , the process of swinging the developer tank 7 is completed. The moving speed and angle of inclination of the developer tank 7 can be kept constant by controlling the motors 1, 2 and limit switches 20, 21, 22, 23, 24, 25 using the aforementioned control device. Further, as is clear from FIG. 3, the developer tank 7 has a double bottom and is equipped with a constant temperature water tank 19. In this constant temperature water tank 19,
Constant temperature water flows from the water inlet 26 to the outlet 27. These inlets and outlets 26 and 27 are connected to a separately installed temperature control device (not shown), and this water flow ensures that the developer in the developer tank 7 is always maintained at a predetermined temperature. This will contribute to stability.

Note that the operations of the stop tank 8 and the fixing tank 9 are similar, so the explanation thereof will be omitted.

As described above, according to the present invention, since the drive of the shaft supporting each tank is automatically controlled, not only the result of development on the glass dry plate is kept constant, but also the development of the developer, stop solution, and fixer The amount of each processing solution used is as small as the glass dry plate is immersed.
It becomes possible to reduce costs and manufacture glass dry plates with stable quality.

[Brief explanation of the drawing]

Fig. 1 is a front view of the device of the present invention, Fig. 2 is a plan view of the device of the present invention, Fig. 3 is a front view showing the operating state of the developer tank, and Fig. 4 is a flowchart of the rocking process. . 1, 3, 5...tank left and right drive motor, 2, 4, 6
...Tank front and back drive motor, 7...Developer tank, 8...Stop tank, 9...Fixer tank, 10, 11, 13, 14,
16, 17... Motor shaft, 12, 15,
18... Strut, 19... Constant temperature water tank, 20, 21,
22, 23, 24, 25...limit switch,
26... constant temperature water inlet, 27... constant temperature water outlet.

Claims (1)

[Scope of utility model registration request] A developing tank, a stop tank, and a fixing tank, a shaft that swingably supports one point of each tank, and a support that supports one point of each tank opposite to the shaft as a fulcrum when each tank swings. , and a motor that reciprocates the shaft in the axial direction, and by driving the shaft to expand and contract through the motor, each tank is individually swung using the support as a fulcrum. Glass dry plate developing device.