JPH04116855U - Development processing equipment - Google Patents

Abstract

(57) [Summary] [Purpose] To save energy in developing processing equipment,
It also aims to prevent deterioration of the processing liquid. [Structure] Each processing tank 1 to 3' is provided with a detection sensor 7a to 7e for the photosensitive material 4, and a control device provided in the development processing apparatus circulates the processing tank 1 to 3' using the output of the sensor 7a to 7e. Controls the circulation amount of the pumps 6a to 6d.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This invention relates to development processing equipment, and more specifically, prevention of deterioration of processing solutions. The present invention relates to a developing processing apparatus that realizes energy saving and energy saving.

0002

[Conventional technology]

Conventionally, an automatic developing device that continuously performs development processing is shown in the embodiment shown in FIG. 1, for example. As shown in FIG. The photosensitive material 4, such as film or photographic paper, is placed in each processing tank according to the development process. A conveying device 5 is provided to sequentially move the liquid from the stabilizer to the stabilizing tank 3. Also, these places The processing tank is equipped with a heating device that warms the processing liquid in the processing tank and a heating device that circulates the processing liquid inside the processing tank. Processing liquid circulation devices 6a to 6d, such as a stirrer or a circulation pump, are provided to circulate the processing liquid. is always heated to the optimum processing temperature and is forcibly processed to accelerate the development process. It circulates inside the tank and at the same time removes dust etc. through a filter to keep it clean. filtration), when the photosensitive material 4 is introduced into the conveying device 5 of each processing tank, It is always kept on standby so that development processing can be carried out at any time.

0003

[Problem that the idea aims to solve]

However, with the above method, the processing solution is circulated during standby in the same way as during development. The processing solution that comes into contact with air at the top of the tank will progress to oxidation, regardless of the amount of processing. There was a problem that the processing liquid deteriorated. For this reason, it is stated in the manufacturer's processing manual. There is a difference between the degree of deterioration of the processing solution determined by the amount of development processed and the amount of circulation, and the actual degree of deterioration. The problem is that the processing solution cannot be managed according to the manufacturer's processing manual due to differences. There was also.

0004 In addition, because the processing solution is constantly being circulated, a large amount of heat is released from the processing solution. The high amount of power consumed is also a problem.

[0005] Therefore, the challenge of this invention is to reduce the amount of circulation during standby and solve the above problem. That's true.

[0006]

[Means to solve the problem]

In order to solve the above problems, we installed a developing tank, a fixing tank, and a stabilizing tank containing processing liquid. A transport device that sequentially moves the photosensitive material to each processing tank according to the development process. In a developing processing apparatus equipped with a circulation device for promoting processing of processing liquid and photosensitive material. , a detection sensor is installed in each of the above processing tanks to detect the presence or absence of photosensitive material, and the sensor output is A control device is provided to control the circulation amount of the circulation device for each treatment tank by force, When the detection sensor detects a photosensitive material in the processing tank, the amount of circulation is increased, and If the detection sensor does not detect the photosensitive material in the processing tank, the circulation amount is reduced. That's what I did.

[0007] Further, in the development processing apparatus according to claim 1, a circulation device for each of the processing tanks is provided. and a structure in which the number of operations of the circulation device is controlled by the output of the detection sensor. It can also be set as

[0008]

[Effect]

In a developing processing apparatus configured in this way, a detection sensor is installed in each processing tank. When it is detected that photosensitive material has been carried into the processing tank, the amount of circulating processing liquid in the processing tank is controlled. The amount increases to the level required for development processing and facilitates processing with photosensitive materials. On the other hand, if the detection sensor no longer detects the photosensitive material, that is, there is no photosensitive material in the processing tank. If there is no material available, the amount of circulating processing liquid can be kept clean by filtration. At the same time, we minimize the amount of oxidation caused by exposure of the processing liquid to the air. It works to keep you warm by reducing the amount of heat radiated.

[0009] In addition, in the case where the above-mentioned circulation device is made up of multiple circulation devices, the above-mentioned circulation amount can be increased or decreased. This is done by adjusting the number of operating circulation devices.

0010

【Example】

Hereinafter, an embodiment of this invention will be described based on FIGS. 1 to 7. As shown in Fig. 1, the device according to this invention has a photosensitive material in the development processing device mentioned above. Detection sensors 7a to 7e are provided, and the outputs of these sensors 7a to 7e are used to detect each location. It changes the circulation amount of the circulation pumps 6a to 6d in the bath, and is the same as the one described above. Some parts will be given the same numbers and their explanation will be omitted.

[0011] The detection sensors 7a to 7e are reflective type photosensors for each processing tank 1 to 3'. It is provided at the entrance and exit of the transport device 5. These sensors 7a to 7e are connected to the reflective tie. In addition to transmissive type photointerrupters, non-contact sensors such as ultrasonic sensors Mechanical type devices such as microswitches or microswitches may also be used, and their arrangement and number shall be as described above. It is not limited to these and can be determined as appropriate. Each of these sensors 7a to 7e outputs a “1” (ON) signal when the photosensitive material 4 is detected. The output is input to the control device 8 shown in FIG. The control device 8 is, for example For example, the presence or absence of photosensitive material 4 in each processing tank 1 to 3' can be determined from the outputs of each of the five sensors mentioned above. It consists of a discrimination circuit 8' and pump drive circuits 9a to 9d. For example, when the photosensitive material 4 is distributed over a plurality of processing tanks 1 to 3' during processing, may be a simple two-input OR circuit shown in FIG. 3 connected in parallel. On the other hand, the feeling If the optical material 4 is short and both ends do not come out of the processing tank during processing, for example, as shown in Fig. 5. It is also possible to use a latch circuit shown in FIG.

0012 In either case, this discrimination circuit 8' detects that the tip of the photosensitive material 4 is at the entrance of the developer tank 1. When detected by the sensor 7a, “1” is sent to the drive circuit 9a of the circulation pump 6a of the developer tank 1. Print the output. Then, the rear end of the photosensitive material 4 is detected by the detection sensor 7b at the exit. The sensor outputs are turned OFF, meaning that the photosensitive material 4 is removed from the developer tank 1. The “1” output is held until it is carried out. The state is shown in the truth table of FIG. same In the fixing tank 2, the detection sensor 7b at the entrance, that is, the exit of the developer tank 1 is detected. When the leading edge of the photosensitive material 4 is detected, the discrimination circuit 8' similar to the above detects the drive circuit 9 of the fixing tank 2. A "1" output is output to b, and the rear end of the photosensitive material 4 is detected by the detection sensor 7c at the exit. The “1” output is held until the output is exhausted. Detection is the same for stabilization tanks 3 and 3' below. The presence or absence of the photosensitive material 4 is determined by the sensors 7c to 7e, and the information is sent to each drive circuit 9c and 9d. Output.

[0013] When a DC motor is used for the circulation pumps 6a to 6d, the drive circuits 9a to 9d are , for example, switching drive using frequency control or pulse width control to achieve high efficiency. It is conceivable to use a circuit, and the number of output pulses or increases the pulse width, increases the output voltage, increases the motor rotation speed, and circulates the processing liquid. Increase the amount to the amount required for processing. Also, the output of the discrimination circuit 8' becomes "0". Then, the number of output pulses or pulse width is decreased to lower the output voltage and the motor rotation is reduced. By lowering the number, the circulating volume is reduced to the amount that provides filtration.

[0014] On the other hand, when an AC motor is used for the circulation pumps 6a to 6d, for example, as shown in FIG. Phase control using a microprocessor (hereinafter referred to as microcomputer) 10 There is. This is a discriminator circuit 8' that the microcomputer 10 inputs to the I/O port 11. Reads the output signal from the Determine the firing. Then, the phase controller 12 is turned on via the I/O port 11'. /OFF to control the motor rotation speed. Therefore, the rotation speed of the motor should be adjusted correctly. It can be precisely controlled, and the circulation amount can be changed as described above.

[0015] Next, let us consider the case where a plurality of circulation pumps 6a to 6d are used for each treatment tank 1 to 3'. I will explain it. For example, as shown in FIG. 7(a), the developer tank 1 includes two pumps 6a', 6a', for example, one pump 6a' is used for filtration. It should be capable of outputting a small amount of circulation to the extent that the device will wilt, and it should be kept in operation at all times. and The output signal "1" of the discrimination circuit 8' activates the relay circuit shown in FIG. Pump 6a" is operated. This pump 6a" has a large circulation volume, and its operation requires Therefore, a large amount of circulation during development processing is ensured.

[0016] This embodiment is constructed as described above, and the developing processing apparatus shown in FIG. When the optical material 4 is not carried in, the outputs of the discrimination circuit 8' are all "0", and each The pumps 6a to 6d are maintained at a low circulation rate for filtration. child Therefore, there is less oxidation of the processing solution, less heat radiation from the processing solution, and less power consumption. It has become.

[0017] Now, when the photosensitive material 4 is carried into the conveying device 5 of the developer tank 1, the detection sensor 7 at the entrance a detects this and outputs "1" to the discrimination circuit 8'. The discrimination circuit 8' When the number is discriminated and an output of "1" is output to the drive device 9a of the pump 6a of the developer tank 1, The output voltage of the drive device 9a increases, and the circulation amount of the pump 6a increases. For this reason, the current In the image tank 1, the photosensitive material 4 is smoothly developed. In this way, the developer tank 1 is passed through. When the tip of the photosensitive material 4 that has been passed through reaches the entrance of the fixing tank 2, the detection sensor 7b detects this point. This signal is detected by the discrimination circuit 8' as described above, and the pump 6 of the fixing tank 2 is activated. By increasing the circulation amount of b, the photosensitive material 4 carried into the fixing tank 2 is fixed. . Similarly, the tip of the photosensitive material 4 is detected by the detection sensors 7d and 7e of each processing tank 3 and 3'. When released, the amount of circulation within the treatment tank is increased. On the other hand, the rear end of the photosensitive material 4 is connected to the developer tank 1. When it passes through the detection sensor 7b at the exit, it goes to the circulation pump of the developer tank 1 of the discrimination circuit 8'. The signal output becomes "0", the output voltage of the drive circuit 9a decreases, and the circulation pump 6 The circulation amount of a decreases, resulting in a low circulation amount that keeps the treatment liquid clean. Similarly, each process When the photosensitive material 4 is no longer detected by the tank detection sensors 7b to 7e, each processing tank 2, 3 , 3' are again maintained at a low circulation rate to prevent oxidation of the processing liquid and heat radiation.

[0018] In this way, this developing device automatically adjusts the circulating amount of processing solution depending on the presence or absence of photosensitive material. The amount of development and the degree of deterioration of the processing solution match, and the amount of development is adjusted according to the manufacturer's management manual. Processing liquid can be managed according to the rules.

[0019]

【effect】

This idea is configured as described above, so each processing tank is The circulation amount of processing liquid can be controlled.

[0020] For this reason, it is possible to obtain the necessary circulation rate for each processing tank during development processing while also maintaining the acidity of the processing solution while it is on standby. It is also possible to manage the processing liquid according to the manufacturer's processing manual. Furthermore, the drop in temperature due to heat dissipation of the processing liquid can be minimized, resulting in less power consumption. It becomes.

[Brief explanation of drawings]

[Figure 1] Partial block diagram showing an embodiment

[Figure 2] Partial block diagram showing an embodiment

[Figure 3] Partial block diagram showing an embodiment

[Figure 4] Action diagram of the example

[Figure 5] Block diagram of another embodiment

[Figure 6] Block diagram of another embodiment

[Figure 7] Block diagram of another embodiment

[Explanation of symbols]

1 Developer tank 2 Fixer tank 3, 3’ stabilization tank 4 Photosensitive material 5 Transport device 6a-6d Circulation pump 7a-7e Detection sensor 8 Control device

Claims (2)

[Scope of utility model registration request] Claim 1: A developing tank, a fixing tank, and a stabilizing tank each containing a processing solution are arranged in series, and a conveying device for sequentially moving the photosensitive material to each processing tank according to the development process, and a conveying device for transporting the processing solution and the photosensitive material. In the development processing apparatus equipped with a circulation device for promoting processing, each processing tank is provided with a detection sensor for detecting the presence or absence of a photosensitive material, and the circulation rate of the circulation device is controlled for each processing tank based on the output of the sensor. A developing processing apparatus comprising: a control device that increases the circulation amount when the detection sensor detects a photosensitive material in the processing tank, and decreases the circulation amount when the detection sensor does not detect the photosensitive material. 2. The developing processing apparatus according to claim 1, wherein each of the processing tanks has a plurality of circulation devices, and the number of operations of the circulation devices is controlled by the output of the detection sensor. Processing equipment.