JP3167910B2 - Film feeder for automatic processor - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a film feeder for an automatic developing machine, and more particularly, to an automatic developing machine for automatically transporting and processing a film by a normal power supply from a normal power supply, which is housed in a cartridge. The present invention relates to a film supply device for an automatic developing machine that draws out and supplies a film.

[0002]

2. Description of the Related Art An automatic developing machine conveys a film drawn from a patrone and performs processing such as development, bleaching, fixing, and washing with water. The transport of the film is performed by engaging a sprocket with holes provided at predetermined intervals in a leader attached to the leading end of the film. Here, since the rear end of the film wound around the patrone is attached to the spool in the patrone, the film is tensioned immediately before the film is completely pulled out from the patrone. The automatic developing machine detects the back end of the film by detecting this tension state with a sensor,
A cutter is operated to cut the vicinity of the rear end of the film.

Incidentally, the above-mentioned automatic developing machine is supplied with electric power from an electric power company like a general household. For this reason, in the event of a power failure, the drive system is stopped, and the film remains immersed in each processing tank, causing damage to the film. There is a need.

In such a case, the film is conveyed by a manual handle, and the cutter is manually operated to cut the vicinity of the rear end of the film so that the film is taken out of the automatic developing machine. Was very complicated.

For this reason, in order to reduce the labor of the operator at the time of removing the film, a film supply apparatus for an automatic developing machine described in Japanese Patent Application Laid-Open No. 4-78852 (corresponding to US Pat. No. 5,250,974). Has been proposed.
In other words, the film supply device for an automatic developing machine charges the capacitor with electric energy from the normal power supply circuit during normal power supply, and when a power failure occurs, the switching means supplies the capacitor with electric energy from the normal power supply circuit. The cutter is operated by this electric energy to cut the film.

[0006]

In the above-described film supply apparatus for an automatic developing machine, the cutter is operated by electric energy supplied from a normal power supply circuit during normal power supply,
In the event of a power failure, the switching means switches to electric energy from the condenser, and the electric energy supplied from the condenser operates the cutter to cut the film. However, in such a configuration, there is a problem that switching means is required, and the circuit configuration is complicated.

The present invention provides a film supply apparatus for an automatic developing machine which can operate a cutter for cutting a film by a small-capacity normal supply power supply and can operate a cutter for cutting a film even in the event of a power failure. The purpose is to do.

[0008]

According to a first aspect of the present invention, there is provided an automatic developing machine for extracting and supplying a film accommodated in a patrone to an automatic developing machine which automatically conveys and processes the film. A film end sensor for detecting the end of the film drawn from the patrone, a cutter for cutting the vicinity of the rear end of the film, and a normal power supply during normal power supply to operate the cutter. a capacitor, a capacitor charging circuit for charging the capacitor, a capacitor discharge circuit for discharging the electric energy stored in the capacitor, a power failure detection circuit for detecting that power supply by the normal power supply source is cut off, the normal power supply Power supply from above cutter
Supply consisting of a resistor and a diode for
When the rear end of the film is detected by the film end sensor during normal power supply, the electric energy supplied from the normal power supply through the power supply circuit and the electric energy stored in the capacitor are added.
When the cutter is operated by the electric energy , the power failure detection circuit detects the power failure, and when the film end sensor detects the end of the film, the cutter is operated by the electric energy stored in the capacitor by the capacitor discharge circuit. And a cutter control circuit for operating the film processing apparatus.

[0009] supply from the normal power supply power even at the time of the normal power supply
Electric energy obtained by adding the electric energy supplied via the electric circuit and the electric energy stored in the capacitor
Since the cutter is operated by the power source, the capacity of the normal power supply can be reduced, and the cutter can be operated even during a power failure.

[0010] The invention according to claim 2 further comprises a manual cut switch for manually operating the cutter, and when the manual cut switch is operated during normal power supply, power is supplied from a normal power supply via a power supply circuit. The cutter control circuit operates the cutter with the electric energy obtained by adding the electric energy and the electric energy stored in the capacitor.When the manual cut switch is operated during a power failure, the capacitor discharge circuit operates. The cutter is operated by a cutter control circuit using electric energy stored in a capacitor.

If the film end detection signal is not output from the film end sensor and the cutter ON signal is not output due to a program runaway or the like,
The cutter can be operated by a manual cut switch.

According to a third aspect of the present invention, there is provided a storage battery charged during normal power supply, power supply switching means for switching power supply from a normal power supply to the storage battery when a power failure detection circuit detects a power failure, and power failure by the storage battery during a power failure. And a power failure warning means for warning the occurrence of the power failure.

The power failure warning means can notify the operator of the power failure, and the operator can discharge the film from the automatic developing machine in response to the warning. Therefore, the time during which the film is immersed in each processing tank is adjusted, and damage to the film can be minimized.

According to a fourth aspect of the present invention, there is provided a film supply device for an automatic developing machine for extracting and supplying a film stored in a patrone to an automatic developing machine which automatically conveys and processes the film. A film end sensor that detects the end of the drawn film, a cutter that cuts the vicinity of the rear end of the film, a capacitor that is charged by a normal power supply during normal power supply and operates the cutter, and a capacitor charging that charges the capacitor A circuit, a capacitor discharge circuit for discharging electric energy stored in the capacitor, a power failure detection circuit for detecting that power supply from the normal power supply is cut off, and a normal power supply
The power outage detection circuit detects the power outage
Switch the power from the normal power supply to the storage battery when
Power supply switching means, and the
A power failure warning means for warning the occurrence of power failure, wherein when the rear end of the film is detected by the film end sensor during normal power supply , the cutter is operated by the electric energy stored in the capacitor, and the power failure detection is performed. And a cutter control circuit for operating the cutter by the electric energy stored in the capacitor by the capacitor discharge circuit when the circuit detects a power failure and the film end sensor detects the end of the film. This is a film supply device for an automatic developing machine.

[0015] Since the cutter is operated by the electric energy stored in the capacitor even during normal power supply,
Normally, the capacity of the power supply can be reduced, and the cutter can be operated even during a power failure.

The invention according to claim 5 further comprises a manual cut switch for manually operating the cutter, and when the manual cut switch is operated during normal power supply, the cutter control circuit is operated by the electric energy stored in the capacitor. Activate the cutter with
When the manual cut switch is operated during a power outage, the cutter is operated by the cutter control circuit by the electric energy stored in the capacitor by a capacitor discharge circuit.

If the film end detection signal is not output from the film end sensor and the cutter ON signal is not output due to a program runaway,
The cutter can be operated by a manual cut switch.

According to a sixth aspect of the present invention, there is provided a storage battery charged during normal power supply, power supply switching means for switching power from the normal power supply to the storage battery when the power failure detection circuit detects a power failure, and the storage battery during power failure. And a power failure warning means for warning the occurrence of a power failure.

The power failure warning means can notify the operator of the power failure, and the operator can discharge the film from the automatic developing machine in response to the warning. Therefore, the time during which the film is immersed in each processing tank is adjusted, and damage to the film can be minimized.

[0020]

Embodiments of the present invention will be described below with reference to the drawings.

[Embodiment 1] FIG. 1 is a schematic diagram showing an automatic developing machine to which a film supply device for an automatic developing machine according to Embodiment 1 of the present invention is applied. In the drawings, the same reference numerals indicate the same or corresponding parts.

Referring to FIG. 1, the automatic developing machine 1 includes a processing section 2 and a drying section 3. The processing section 2 and the drying section 3 are surrounded by a frame 4 on the outside, and external light is blocked. . At the upper part of the automatic developing machine 1, two film cartridge setting sections 6 for setting the film cartridges 8a and 8b are provided. In the film cartridge setting section 6, film cartridges 8a and 8b containing a cartridge 7 in which a leader is attached to the leading end of the drawn-out film are set.

The processing section 2 contains developing tanks 10 and 11, a bleaching tank 12, fixing tanks 13 and 14, and washing tanks 15 to 17. The developing tanks 10 and 11 contain a developer and a bleaching tank 12, respectively. Is a bleaching solution, fixing baths 13 and 14 are a fixing bath, and a washing bath 1
Washing water is filled in 5 to 17, respectively. Also,
A rack driving sprocket 18 is provided above each of the developing tanks 10 and 11, the bleaching tank 12, the fixing tanks 13 and 14, and the washing tanks 15 to 17. In the developing tanks 10 and 11, the bleaching tank 12, the fixing tanks 13 and 14, and the washing tanks 15 to 17,
A leader transport sprocket 19 is provided.

Each rack driving sprocket 18 is rotationally driven by a rack driving chain 21 driven by a motor 20. Each of the leader transport sprockets 19 has a bevel gear (not shown) provided on the back surface of the processing unit 2 by a rack driving sprocket 18 above each tank provided with the leader transport sprockets 19. Driven through. Furthermore, washing tanks 15-17
A squeeze unit 22 for wiping off the moisture of the film that has been washed with water is provided above.

When a power failure occurs, the processing unit 2 includes an LED provided near the film cartridge setting unit 6.
23 is turned on, a buzzer sound is generated from the buzzer 57,
A film transport assist circuit 26 for supplying a current to a solenoid 25 for operating the cutter 24 at the time of normal power supply and at the time of power failure is provided. An emergency handle 2 for driving the rack drive chain 21 at the time of a power failure is provided outside the frame 4 of the processing unit 2.
7 are provided.

The drying section 3 is provided with a film dryer unit 28. The film dryer unit 28 includes a dryer duct 29, a sprocket 30 for transporting a film to the periphery of the dryer duct 29, a sponge roller 31, and the like. The film that has passed through the film dryer unit 28 is separated by a leader cutter 36 into a leader cutter 36.
Cuts the tape to separate the leader and the film.

The frame 4 of the drying unit 3 is provided with a normal power supply film discharge port 3 for discharging a film at the time of normal power supply.
2 and the leader is discharged at the time of normal power supply, and the leader and the film are discharged at the time of power failure.
Is provided.

FIG. 2 is a functional block diagram showing a film transport assist circuit in the film feeder for an automatic developing machine according to the first embodiment of the present invention. The film transport assist circuit 26 is supplied with power from a signal power supply 50 and a cutter drive power supply 51. The signal power supply 50 is connected to the signal charger 52 and charges the signal charger 52.

The signal charger 52 is connected to a breaker auxiliary contact 55 (power supply interruption detecting means), and the main breaker (not shown) of the breaker auxiliary contact 55 is turned on.
It is detected whether it is turned off or turned off. The power failure detection circuit 53 includes a signal power source 50 and a breaker auxiliary contact 55.
To detect a power failure only when the main breaker is ON, and output a power failure detection signal to the signal power switch 54, the cutter control circuit 59, the LED 23, and the buzzer 57.

The signal power supply switch 54 includes a signal power supply 50.
And a signal power supply 50 which is connected to the signal charger 52 via a breaker auxiliary contact 55, and supplies a power to the LED 23 and the buzzer 57 as a power failure warning means when a power failure is detected by the power failure detection circuit 53. To the signal charger 52.

The power supply 51 for the cutter drive is connected to a capacitor charging circuit 58 and charges a capacitor provided in the capacitor charging circuit 58 during normal power supply.
When the cutter control circuit 59 receives a cutter ON signal from the CPU 61 at the time of the normal power supply, the cutter control circuit 59 uses the electric energy stored in the capacitors of the cutter drive power supply 51 and the capacitor charging circuit 58. The cutter 24 is operated.

Further, at the time of a power failure, the cutter control circuit 59
Operates the cutter 24 using the electric energy stored in the capacitor of the capacitor charging circuit 58.

A manual cut switch 62 is connected to the capacitor charging circuit 58 so that the cutter 24 can be operated by manual operation.

Further, a capacitor discharging circuit 63 is connected to the breaker auxiliary contact 55, and when the main breaker is turned off by the breaker auxiliary contact 55, the electric charge stored in the capacitor of the capacitor charging circuit 58 is detected. Discharge energy.

FIG. 3 is a specific circuit diagram of a film transport assist circuit in a film supply device for an automatic developing machine according to Embodiment 1 of the present invention. In the drawing, during normal power supply, a signal power supply 50 (hereinafter, referred to as Vcc1)
Flows through the storage battery 523 via the diode 521 and the resistor 522. A current from a cutter drive power supply 51 (hereinafter, referred to as Vcc2) is supplied to a capacitor 583 via a diode 581 and a resistor 582.
Flows to Thus, during normal power supply, the storage battery 523 and the capacitor 583 are charged with electric energy.

Further, the auxiliary contact 55 of the breaker is closed by turning on the main breaker of the automatic developing machine. In this state, when the rear end of the film is detected by the film end sensor 60 (see FIG. 2),
The film end signal is input to the AND circuit 592.
The cutter ON signal output from the CPU 61 is
The signal is input to the NOT circuit 591. The outputs of the NOT circuit 591 and the AND circuit 592 are output to the F circuit via the OR circuit 593.
ET (Field Effect transister) 594 is input.

Therefore, when either the film end signal or the cutter ON signal is input to the cutter control circuit 59, the FET 594 is turned on, and the current I ₂ from the Vcc ₂ supplied via the resistor 597 and the diode 595 and The combined current I ₀ (= I ₁ + I) of the discharge current I ₁ of the capacitor 583 supplied via the diode 596
₂ ) flows to GND via the solenoid 25 and the FET 594.

As a result, the solenoid 25 applies the current I ₀
And the film is cut off from the cartridge by the cutter 24. Therefore, the driving of the solenoid 25, the condenser 5 with a current I ₂ from Vcc2
To become the discharge current I ₁ 83 may also be used, Vc
The capacity of c2 can be kept small.

Next, when a power failure occurs, the power failure detection circuit 53 detects the power failure. That is, the voltage of Vcc1 used as the detection power supply is the voltage division ratio of the resistors 531 and 532, and the voltage at the middle point between the resistors 531 and 532 is input to the voltage detection circuit 533. Further, Vcc1 is supplied to the voltage detection circuit 533 via the breaker auxiliary contact 55 in order to drive the voltage detection circuit 533. Further, at the time of a power failure, a current is supplied from the storage battery 523 to the voltage detection circuit 533. Accordingly, in the power failure detection circuit 53, the breaker auxiliary contact 55 is turned on.
The state of Vcc1 can be monitored only when the power is turned off, and a power failure can be detected.

When a power failure is detected by the power failure detection circuit 53, a detection signal is input to the signal power supply switch 54 to operate the signal power supply switch 54, and the signal power supply is switched from Vcc1 to the storage battery 523. This allows the LED to be
23 is turned on, and the buzzer 57 can generate a buzzer sound. The power failure detection signal is also input to an AND circuit 592 of the cutter control circuit 59.

Therefore, when the rear end of the film is detected by the film end sensor 60 (see FIG. 2) during a power failure, the film end signal is input to the AND circuit 592, the FET 594 is turned on, and the diode 596 is turned on.
Discharge current I _{1 of the} capacitor 583 supplied through the
Flows through the solenoid 25 and the FET 594 to GND. As a result, the solenoid 25 is driven by the discharge current I ₁ , and the film is cut off from the cartridge by the cutter 24. Therefore, the cutter 24 can be operated even during a power failure, and the film can be prevented from being damaged.

Next, the case where the manual cut switch 62 is operated will be described. During normal power supply,
When the manual cut switch 62 is operated,
V supplied via a resistor 597 and a diode 595
combined current I ₀ of the discharge current I ₁ of the capacitor 583 is supplied through the current I ₂ and the diode 596 from cc2 (= I ₁ + I ₂₎ is a solenoid 25, it flows to the GND via the manual cut switch 62. Further, when the manual cut switch 62 is operated during a power failure, the discharge current I _{1 of the} capacitor 583 supplied via the diode 596 flows to GND via the solenoid 25 and the manual cut switch 62.

As a result, the solenoid 25 is driven,
The film is cut off from the cartridge by the cutter 24. Therefore, by the film end sensor 60,
Even when the trailing edge of the film is detected, if the film end signal is not generated, or if the cutter ON signal is not generated due to runaway of the program, etc., the cutter 24 is forcibly operated manually. Can be done. Further, even at the time of a power failure, the cutter 24 can be forcibly operated manually.

Next, a case where the main breaker of the apparatus is turned off during normal power supply will be described. When the main breaker of the device is turned off during the normal power supply, the breaker auxiliary contact 55 is turned off. As a result, the resistor 633 is connected to GND, and the transistor 6
31 base current flows to GND via the resistor 633,
The transistor 631 is turned on. Transistor 6
31 is turned on, the discharge current _{ID of the} capacitor 583
Is connected to GND via the resistor 632 and the transistor 631.
Flows to

Therefore, when the main breaker of the apparatus is turned off, all the electric energy stored in the condenser 583 is discharged as a discharge current, and when a service person performs maintenance of the apparatus, an electric shock is caused. Can be prevented.

Next, the operation of the automatic developing machine film supply device and the operation of the operator when the operator operates the automatic developing machine 1 will be described with reference to FIGS. First, the operator sets the film cartridge 8a (or 8b) accommodating the patrone 7 in the film cartridge setting section 6 and gives an instruction to start processing to the automatic developing machine 1 by operating a start button (not shown). . As a result, the leader and the film are pulled out from the patrone 7 accommodated in the film cartridge 8a (or 8b), and are developed along the film transport path (indicated by arrows in FIG. 1). The film is transported in the order of fixing tanks 13 and 14 and washing tanks 15 to 17, where the film is developed, bleached, fixed, washed with water and the like.

Thereafter, the leader and the film are conveyed in the order of the squeeze unit 22 and the film dryer unit 28, and the film is dried. If the rear end of the film is detected by the film end sensor 60 during such processing, the end signal output from the film end sensor 60 is first sent to the CPU 6.
1 and then a cutter ON signal is sent from the CPU 61 to the cutter control circuit 59. As a result, the combined current of the current from the cutter drive power supply 51 and the discharge current of the capacitor flows to the solenoid 25,
4 is operated to release the film from the cartridge 7. The films cut off from the patrone 7 are supplied to the developing tanks 10 and 11, the bleaching tank 12, the fixing tanks 13 and 14, and the washing tank 1.
The squeeze unit 2
2. The film is dried in the film dryer unit 28.

Next, the tape is cut in the leader cutter unit 35 to separate the leader and the film. The film is discharged from the film discharge port 32 and the leader from the discharge port 33 to the outside of the automatic developing machine 1 during normal power supply.

When a power failure is detected in the power failure detection circuit 53, the power switch 54 for the signal
The power supplied to the power supply 23 and the buzzer 57 is switched from Vcc1 to the signal charger 52.

Accordingly, the LED 2 serving as a power failure warning means
3 is lit, and a warning is issued to prohibit the film cartridges 8a and 8b from being pulled out. At the same time, a buzzer sound is generated, for example, at one-second intervals by the buzzer 57 as a power failure warning unit. The operator rotates the emergency handle 27 in synchronization with the buzzer sound, and discharges the film in the automatic developing machine 1 from the film discharge port 33 during the power failure to the outside of the automatic developing machine 1. That is, the operator discharges the film to the outside of the automatic developing machine 1 by rotating the emergency handle 27, for example, by 1/4 turn for each buzzer sound. Therefore,
The time during which the film is immersed in each processing tank is adjusted,
The damage to the film can be minimized.

If the film end is detected by the operation of the emergency handle 27 and the rear end of the film is detected by the film end sensor 60, the discharge current of the capacitor flows through the solenoid 25, and the cutter 24 Is operated to cut the film. Therefore, by continuously rotating the emergency handle even after the film is cut, the film can be discharged out of the automatic processor 1 and the film can be prevented from being damaged.

[Second Embodiment] In the first embodiment, the case where the cutter is operated by using the electric energy from the normal power supply and the electric energy stored in the capacitor during the normal power supply has been described.

In the second embodiment, a case will be described in which the cutter is operated by using the electric energy stored in the capacitor during the normal power supply.

FIGS. 1 and 2 are common to the first embodiment and will not be described.

FIG. 4 is a specific circuit diagram of a film transport assist circuit in a film supply device for an automatic developing machine according to Embodiment 2 of the present invention.

In the figure, at the time of normal power supply, a current from the signal power supply 50 (hereinafter referred to as Vcc1) flows to the storage battery 523 via the diode 521 and the resistor 522. In addition, a cutter drive power supply 51 (hereinafter, V
cc2) flows to the capacitor 583 via the diode 581 and the resistor 582. Thereby, during normal power supply, the storage battery 523 and the capacitor 583
Is charged with electric energy.

The auxiliary contact 55 of the breaker is closed when the main breaker of the automatic developing machine is turned on. In this state, when the rear end of the film is detected by the film end sensor 60 (see FIG. 2),
The film end signal is input to the NAND circuit 600. The cutter ON signal output from the CPU 61 is input to the NOT circuit 591. NOT circuit 591
The output of the NAND circuit 600 is input to an FET (Field Effect Transister) 594 via a NOR circuit 601. Therefore, when the cutter ON signal is input to the cutter control circuit 59, the FET 594 is turned on, and the discharge current I _{0 of the} capacitor 583 supplied via the diode 596 flows to GND via the solenoid 25 and the FET 594.

Thus, the solenoid 25 operates at the current I ₀
And the film is cut off from the cartridge by the cutter 24. Therefore, the driving of the solenoid 25, to become the discharge current I ₀ of the capacitor 583 is used, it is possible to reduce the capacity of Vcc2.

Next, when a power failure occurs, the power failure detection circuit 53 detects the power failure. That is, the voltage of Vcc1 used as the detection power supply is the voltage division ratio of the resistors 531 and 532, and the voltage at the middle point between the resistors 531 and 532 is input to the voltage detection circuit 533. In addition, Vcc1 is supplied to the voltage detection circuit 533 via the breaker auxiliary contact 55 in order to drive the voltage detection circuit 533. Further, at the time of a power failure, a current is supplied from the storage battery 523 to the voltage detection circuit 533. Therefore,
The power failure detection circuit 53 can monitor the state of Vcc1 only when the breaker auxiliary contact 55 is ON, and can detect a power failure.

When a power failure is detected by the power failure detection circuit 53, a detection signal is input to the signal power supply switching unit 54, and the signal power supply switching unit 54 is operated, thereby switching the signal power supply from Vcc1 to the storage battery 523. With this, LED2
3 can be turned on and the buzzer 57 can generate a buzzer sound.

The power failure detection signal is also input to the NAND circuit 600 of the cutter control circuit 59. Therefore, when the rear end of the film is detected by the film end sensor 60 (see FIG. 2) at the time of the power failure, the film end signal is input to the NAND circuit 600 and the FET 59
4 is turned on, and the discharge current I _{0 of the} capacitor 583 supplied through the diode 596 is supplied to the solenoids 25 and F.
It flows to GND via ET594.

Thus, the solenoid 25 discharges the discharge current I
_The film is separated from the patrone by the cutter 24 driven by the cutter 24. Therefore, the cutter 24 can be operated even during a power failure, and the film can be prevented from being damaged.

Next, a case where the manual cut switch 62 is operated will be described. During normal power supply,
When the manual cut switch 62 is operated,
Capacitor 58 supplied via diode 596
The discharge current I ₀ of No. 3 flows to GND via the solenoid 25 and the manual cut switch 62. Further, even when the manual cut switch 62 is operated during a power failure, the discharge current I _{0 of the} capacitor 583 supplied via the diode 596 flows to the GND via the solenoid 25 and the manual cut switch 62.

As a result, the solenoid 25 is driven,
The film is cut off from the cartridge by the cutter 24. Therefore, by the film end sensor 60,
Even when the trailing edge of the film is detected, if the film end signal is not generated, or if the cutter ON signal is not generated due to runaway of the program, etc., the cutter 24 is forcibly operated manually. Can be done. Further, even at the time of a power failure, the cutter 24 can be forcibly operated manually.

Next, a case where the main breaker of the apparatus is turned off during normal power supply will be described.

When the main breaker of the apparatus is turned off during the normal power supply, the breaker auxiliary contact 55
FF is performed. Thus, the base current of the transistor 631 flows to GND via the resistor 633, and the transistor 631 is turned on. Transistor 631 is ON
As a result, the discharge current _{ID of the} capacitor 583 becomes the resistance 63
2 and the transistor 631 to GND.

Therefore, when the main breaker of the apparatus is turned off, all the electric energy stored in the condenser 583 is discharged as a discharge current, and when a service person performs maintenance of the apparatus, an electric shock is caused. Can be prevented.

The operation of the automatic developing machine film supply device according to the second embodiment and the operation of the operator when operating the automatic developing machine 1 are basically the same as those in the first embodiment. However, when a cutter ON signal is sent from the CPU 61 to the cutter control circuit 59 at the time of normal supply, the discharge current of the condenser flows through the solenoid 25, and the cutter 24 is activated to separate the film from the cartridge 7. Different from 1.

In the film supply device for an automatic developing machine according to the first and second embodiments, various automatic settings can be made. By selecting a test mode as one of the automatic settings, software can be set in this mode. The operation of the cutter alone can be confirmed. Also in this case, when the operator operates on the operation panel, a cutter operation ON signal is output from the CPU and sent to the cutter control circuit, and thereafter, a predetermined operation is performed.

[0070]

According to the present invention, the cutter is operated by using the electric energy stored in the capacitor even when the film is normally cut at the time of power supply, so that the capacity of the normal power supply can be reduced. In addition, at the time of a power failure, the cutter is operated using the electric energy stored in the capacitor, so that the operation of discharging the film out of the automatic developing machine by the operator becomes easy.

Further, since the cutter can be forcibly operated even by the manual cut switch, if the film end detection signal is not output due to a failure of the film end sensor or the like, the cutter ON signal is not output due to a program runaway or the like. Even if
The film can be discharged out of the automatic processor without damaging the film.

Further, when the main breaker is dropped, the electric energy stored in the capacitor is discharged, so that there is no danger of electric shock when a service engineer or the like performs maintenance of the automatic developing machine. To play.

[Brief description of the drawings]

FIG. 1 is a schematic view showing an automatic developing machine to which a film supply device for an automatic developing machine according to the present invention is applied.

FIG. 2 is a block diagram showing a film transport assist circuit in a film supply device for an automatic developing machine according to the present invention.

FIG. 3 is a circuit diagram of a film transport assist circuit in the film supply device for an automatic developing machine according to the first embodiment of the present invention.

FIG. 4 is a circuit diagram of a film transport assist circuit in a film supply device for an automatic developing machine according to Embodiment 2 of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Automatic developing device, 2 ... Processing part, 3 ... Drying part, 8a, 8
b: film cartridge, 10, 11: developing tank, 12
... Bleaching tank, 13,14 ... Fixing tank, 15-17 ... Washing tank,
23 ... LED, 24 ... Cutter, 25 ... Solenoid, 2
6 ... Film transport assist circuit, 27 ... Emergency handle, 28 ... Dryer unit, 29 ... Dryer duct, 30 ... Sprocket, 32 ... Normal power supply film outlet, 33 ... Power failure film outlet, 35 ... Leader cutter unit, 36 ... leader cutter, 50 ...
Signal power supply, 51: Cutter drive power supply, 52: Signal charger, 53: Power failure detection circuit, 54: Signal power supply switcher, 55: Breaker auxiliary contact, 58: Capacitor charging circuit, 59: Cutter control circuit, Reference numeral 60: film end sensor, 61: CPU, 62: manual cut switch, 63: capacitor discharge circuit, 521, 58
1, 595, 596: diode, 522: resistor, 52
3 ... storage battery, 531, 532, 632 ... resistance, 533 ...
Voltage detection circuit, 583: capacitor, 591: NOT circuit, 592: AND circuit, 593: OR circuit, 594 ...
FET, 600 NAND circuit, 601 NOR circuit,
631 ... transistor.

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-4-78852 (JP, A) JP-A-5-119461 (JP, A) JP-A-5-127352 (JP, A) JP-A-59-1982 79253 (JP, A) JP-A-61-151655 (JP, A) JP-A-62-79463 (JP, A) JP-A-62-115163 (JP, A) JP-A-62-246068 (JP, A) JP-A-63-23155 (JP, A) JP-A-63-25658 (JP, A) JP-A-2-269340 (JP, A) JP-A-3-89345 (JP, A) JP-A-3-228051 (JP, A) JP-A-6-222545 (JP, A) JP-A-7-281402 (JP, A) JP-A-8-123004 (JP, A) (58) Fields investigated (Int. Cl. ⁷⁾ , DB name) G03D 13/00

Claims (5)

(57) [Claims] 1. A film supply device for an automatic developing machine which draws out a film stored in a patrone and supplies it to an automatic developing machine which automatically conveys and processes the film, wherein an end of the film drawn out of the patrone is provided. , A cutter that cuts the vicinity of the rear end of the film, a capacitor that is charged by the normal power supply during normal power supply and operates the cutter, a capacitor charging circuit that charges the capacitor, A capacitor discharge circuit for discharging the stored electric energy, a power failure detection circuit for detecting that power supply from the normal power supply is cut off, and a device for directly operating the cutter from the normal power supply.
And become more feed circuit a resistor and a diode, the paper from the normal power supply source when the trailing end of the film is detected by the film end sensor to the normal power supply
Electric energy obtained by adding electric energy supplied through an electric circuit and electric energy stored in the capacitor.
When the cutter is activated by the energy, the power failure detection circuit detects the power failure, and when the film end sensor detects the end of the film, the capacitor discharge circuit activates the cutter by the electric energy stored in the capacitor. A film feeder for an automatic developing machine, comprising: And a manual cut switch for manually operating the cutter, wherein when the manual cut switch is operated during normal power supply, electric energy supplied from the normal power supply via the power supply circuit. And the electrical energy stored in the capacitor
The cutter control circuit is operated by the cutter control circuit with the added electric energy , and when the manual cut switch is operated during a power failure, the cutter control circuit is operated by the electric energy stored in the capacitor by the capacitor discharge circuit. 2. The film supply device for an automatic developing machine according to claim 1, wherein the cutter is operated by the operation. 3. A storage battery charged during normal power supply, power supply switching means for switching power from the normal power supply to the storage battery when the power failure detection circuit detects a power failure, and warning of the occurrence of a power failure by the storage battery during a power failure. The film supply device for an automatic developing machine according to claim 1, further comprising: a power failure warning unit. 4. A film supply device for an automatic developing machine which draws out a film stored in a patrone and supplies it to an automatic developing machine which automatically conveys and processes the film, wherein an end of the film drawn out of the patrone is provided. , A cutter that cuts the vicinity of the rear end of the film, a capacitor that is charged by the normal power supply during normal power supply and operates the cutter, a capacitor charging circuit that charges the capacitor, a capacitor discharge circuit for discharging the electric energy stored, and the power failure detection circuit for detecting that the power supply in the normal power supply power is interrupted, the battery is normally charged when power is supplied, when the power failure detection circuit detects the power failure Normal power supply
Power supply switching means for switching power supply to the storage battery from above, and a power failure alarm for warning the occurrence of a power failure by the storage battery at the time of power failure.
Notification means, and when the rear end of the film is detected by the film end sensor during normal power supply , the cutter operates with the electric energy stored in the capacitor, and the power failure detection circuit detects a power failure, A film for an automatic developing machine, comprising: a cutter control circuit for operating the cutter with electric energy stored in the capacitor by the capacitor discharge circuit when the film end sensor detects the end of the film. Feeding device. 5. A manual cut switch for manually operating the cutter, and when the manual cut switch is operated during a normal power supply, the cutter control circuit uses the electric energy stored in the capacitor to control the cutter. When the manual cut switch is operated during a power outage,
5. A film supply device for an automatic developing machine according to claim 4, wherein said cutter is operated by said cutter control circuit by the electric energy stored in said capacitor by said capacitor discharge circuit.