JPS6218588Y2 - - Google Patents

Description

[Detailed description of the invention] This invention separates a large number of sheet films such as X-ray photographic films one by one and automatically feeds them intermittently into a sheet film transport path. The present invention relates to a photosensitive sheet film feeding device that feeds sheet films one at a time.

To quickly develop X-ray photographic film,
A large number of X-ray photographic films that have been taken have been inserted into a magazine, and the magazine is inserted into one of the sheet films.
A method has been adopted in which the sheet film is attached to a separating device that separates the sheets one by one, and the sheets are automatically separated one by one and then fed intermittently to an automatic developing machine. However, sometimes it may be necessary to immediately develop one or several pieces of X-ray photographic film immediately after it has been taken. In such a case, it is most expedient to process the sheet film that needs to be developed immediately by inserting it into an automatic developing machine that regularly conveys and develops the sheet film intermittently.

This invention consists of a first supply section 2 in which a large number of photographed sheet films are intermittently taken out one by one by an automatic separation mechanism 3 from a film storage section and automatically supplied to a developing machine; A second supply section 6 is provided which can separately supply the sheet film during the continuous supply of the sheet film. A signal is issued to stop the automatic separation mechanism 3 of the first supply section 2, and when the sheet film is being detected by the film transport detection section 5 provided between the automatic separation mechanism 3 of the first supply section 2 and the developing machine, the film is detected. The photosensitive sheet film supply method is characterized in that when the sheet film from the second supply section 6 is not detected by the transport detection section, the sheet film from the first supply section 2 is automatically continuously conveyed. Provide equipment.

A detailed explanation will be given below based on the drawings.

FIG. 1 is a side sectional view of a photosensitive sheet film supplying device according to this invention. Although the figure shows an embodiment in which X-ray photographic film is transported to an automatic processor after being photographed, it is obvious that the present invention can also be applied to transporting sheet films other than X-ray photographic film.

In the figure, 1 is a film storage section consisting of a magazine into which a large number of X-ray photographic films (hereinafter referred to as films) have been inserted, and 2 is a section for separating and sorting the films in the film storage section 1 one by one. The first film supply section 2 is provided with a suction cup 3 for separating the films one by one, a film clamping conveyance roller 4, and a film conveyance detection section 5. Reference numeral 6 denotes a second cassette 7 that automatically feeds one film inserted into the cassette 7.
This is a film supply section, and the second film supply section 6 includes a film clamping conveyance roller 8 which is constantly driven or driven by the insertion of a cassette 7, a film conveyance detection section 9, and a cassette 7 or a sheet film insertion opening (see Fig. (not shown). In addition, the second
The films to be supplied to the film supply section 6 may be manually inserted one by one.

A film collection section 10 is provided at the film discharge end of the first film supply section 2, and a film collection section 10 is provided at the film discharge end of the first film supply section 2.
A film transport section 11 is provided between the film discharge end and the film collection section 10. The film collecting section 10 is provided with a film clamping and conveying roller 12 and a guide 13 that are constantly driven or are driven when the film conveyance detecting section 9 detects a film and stop when the film passes through the film conveying detecting section 16. Further, the film transport section 11 is provided with a film clamping transport roller 14 that is constantly driven or driven in the same way as the roller 12, a guide 15, and a film detection section 16. Reference numeral 17 denotes a controller, and the controller 17 is electrically connected to the first film supply section 2, the second film supply section 6, and the film transport section 11 (see FIG. 2). Note that 18 is an automatic developing machine, and 19 is a pedestal for holding the second film supply section.

FIG. 2 is a block circuit diagram showing the control system of the sheet film conveying device. The controller 17 includes a film transport detection section 9 of the second film supply section 6.
a detection holding circuit 18 that holds for a certain period of time a detection signal that outputs "1" when there is a film from the film transport section 11; an inverter G1 that inverts the detection signal from the film transport detection section 16 of the film transport section 11; A timer 19 which is triggered by the output "1" from the timer 19 and returns to "0" after a certain period of time; and a reset signal which resets the detection holding circuit 18 by the trigger signal "1" from the timer 19. The generating section 20, an OR gate G2 which inputs respective output signals from the detection holding circuit 18 and the timer 19, and an inverter G3 which inverts the output signal of the OR gate G2 are incorporated.

Therefore, the detection signal "1" from the film transport detecting section 9 of the second film supply section 6 is set to "1" by the detection holding circuit 18, and as a result, even if the film is removed from the film transport detecting section 9, the above-mentioned The signal "1" is maintained and enters the OR gate G2, and the output "1" of G2 is inverted by the inverter G3 and becomes "0".

Next, the film is transferred to the film clamping conveyance roller 14.
The film detection signal "1" generated by the film transport detecting section 16 of the film transport section 11 is inverted to "0" by the inverter G1. Enter timer 19. However, the signal “0” in timer 19
It does not work even if it is inserted. Then, when the film passes through the film transport detection section 16, the detection signal becomes "0" and is inverted by the inverter G1 to become "1".
The inverted signal "1" is entered into the timer 19 and held for a certain period of time, and as a result, the signal "1" is held even if the film is removed from the film transport detecting section 16.
The signal "1" held for a certain period of time by the timer 19 is input to the OR gate G2 and also to the reset signal generator 20. The output from OR gate G2 holds "1" and is inverted by inverter G3 to output "0".

On the other hand, the signal "1" input to the reset signal generating section 20 resets the detection holding circuit 18. After a certain period of time determined by the timer 19, the signal "1" becomes "0" and "0" is input to both inputs of OR gate G2, so the output of G2 becomes "0" and is inverted by inverter G3. It becomes “1”. Therefore, the output of the OR gate G2 is transmitted to the film transport detecting section 16 of the film transport section 11 after the film enters the film transport detecting section 9 of the second film supplying section 6.
The state of "1" is maintained until the film is removed and the output of the timer 19 becomes "0".

The circuit diagram incorporated in the first film supply section 2 will be explained in detail with reference to the following operation.

(i) After the film transport detection section 5 of the first film supply section 2 detects the film, the film transport detection section 9 of the second film supply section 6 or the film transport detection section 16 of the film transport section 11 detects the film. Inverter G3 of controller 17
A case in which the output from the controller becomes "0" will be described below.

First, in the initial state, FF1 shown in Figure 2
Q is "0", Q is "1", and FF2 is also "1". When the signal from the film transport detector 5 becomes "1", both inputs of the AND gate G4 become "1". Therefore,
The output of G4 becomes "1", and at this rising edge, the output of FF1 is inverted and becomes "0" and Q becomes "1". The output state of this FF1 is that the output of the film transport detection section 5 is "0".
Then, it is inverted to "1" by inverter G5 and input to both inputs of AND gate G6 directly and via inverter G7 and the R/C circuit, and the output from G6 becomes "1", and the rising edge Connect until you reset FF1 with . Therefore, since the output of FF1 is inverted first, that is, FF1 becomes "0", one of the inputs of AND gate G8 becomes "0", so the signal from inverter G3 is "0" and the inverter is inverted. It is inverted by G9 and becomes "1", and even if "1" is input to the other input of AND gate G8, the output of AND gate G8 is "0", and no trigger pulse is input to FF2. As a result, the trigger is not activated and the output of FF2 does not change to "1". Therefore, FF
Since the output Q of 1 also holds “1”, OR
Since the output "1" is input to the film nipping conveyance roller driving section 4a through the gate G10 and the OR gate G11, the film nipping conveyance roller 4 continues to be driven to rotate. In this state, when the film transport detection section 5 finishes detecting the film and the output becomes "0", the inverter G
5. Through inverter G7, R/C circuit
“1” is output from AND gate G6, and a reset signal is output by the rising pulse.
Reset FF1. Therefore, Q of FF1
becomes "0" and puts "0" into OR gate G10. In that case, sucker 1 cycle cam 21
(It rotates in conjunction with the operation of the suction cup 3, and while it is rotating, when it rotates once from "1", it stops and becomes "0")
The output from AND gate 16 is “0” and
Therefore, the output of G16 becomes "0" and "0" is also input to the other input of OR gate G10. Therefore, the output of OR gate G10 is "0". As a result, OR
One input of gate G11 is "0", the input from inverter G3 is also "0", and the output of OR gate G11 is also "0".
Therefore, the film clamping conveyance roller drive unit 4
Since the drive of a is stopped, the film clamping conveyance roller 4 is stopped. Naturally, the first film supply section 2
The film has reached the film collecting section 10 by the time the film clamping and conveying roller 4 stops. Further, after the film from the first film supply section 2 reaches the automatic developing machine 18, the film from the second film supply section 6 reaches the film collecting section 10.

On the other hand, when the output signal from inverter G3 is "0", the output from suction cup 1 cycle cam 21 is also "0", so "0" is input to any input of OR gate G17, and the output of G17 is "0". 0'', therefore, the suction cup drive unit 3a
Since the drive of the suction cup 3 is stopped, the suction cup 3 is stopped. Here, when FF1 is reset, it becomes "1" and both inputs of AND gate G8 are "1".
Therefore, the output of G8 becomes "1". Due to the rising pulse of AND gate G8, FF2 is
Since the output is inverted and becomes "0" and one of the inputs of AND gate G4 becomes "0", the output from G4 becomes "0" and FF1 is no longer triggered. Therefore, inverter G
The signal from 3 is inverted and the output becomes “1”,
It enters both inputs of AND gate G13 directly and via inverter G12 and R/C circuit, and the output from G13 becomes "1".
FF1 is not triggered until the reset signal of FF2 is output and becomes "1".

Next, the output signal from inverter G3 is “1”
Then, this signal “1” is sent to OR gate G11.
and is input to AND gate G15. Therefore, "1" is output from OR gate G11,
The film clamping conveyance roller 4 is rotated by driving the film clamping conveyance roller driving section 4a. on the other hand,
At this time, the signal "0" from the film transport detection section 5 is inverted by the inverter G14 and becomes "1", and that "1" is input to the AND gate G15, so the signal "1" is input from the AND gate G15.
is output, and the suction cup drive unit 3a is driven via the OR gate G17, so that the suction cup 3 performs suction and swinging movements in a known manner.

(ii) While the suction cup 3 of the first film supply section 2 is sucking the film, the film transport detection section 9 of the second film supply section 6 or the film transport detection section 16 of the film transport section 11 detects the film, and the controller 17 detects the film. The case where the output from inverter G3 becomes "0" will be described below.

When the suction cup 3 starts suctioning the film, the suction cup one-cycle cam 21 outputs a movement output of "1", but after a certain period of time, the output is reversed to "0" and enters one input terminal of the OR gate G17. Therefore, the output "1" from the suction cup 1-cycle cam 21 is input to one side of the AND gate G16, and since the film transport detector 5 does not detect the film, the output "0" is output and reversed by the inverter G5. Then “1” is AND gate G1
Enter the other side of 6. Therefore, since "1" is output from the AND gate G16, the film clamping conveyance roller drive unit 4a is driven via the OR gate G10 and OR gate G11, so the film clamping conveyance roller 4 starts rotating, or If it is already rotating, continue rotating.

When the film suctioned by the suction cup 3 is brought to the film clamping conveyance roller 4, the film is conveyed by the film clamping conveyance roller 4 and detected by the film conveyance detecting section 5. Therefore, the output signal from the film transport detection section 5 becomes "1", which is inverted to "0" by the inverter G14 and input to the AND gate G15, so that the output signal of G15 becomes "0", so the OR
“0” is input to the other terminal of the gate G17. Signal “0” from suction cup 1 cycle cam 21
enters one input terminal of OR gate G17, the output of OR gate G17 becomes "0",
The suction cup drive unit 39 is stopped, and as a result, the suction operation of the suction cup is stopped.

Furthermore, the output signal "1" from the film transport detection section 5 is inverted by the inverter G5 and becomes "0" and input to the AND gate G16, so the output of G16 becomes "0" and the OR gate G
10. Since the film clamping conveyance roller driving section 4a is stopped via the OR gate G11, the film clamping conveyance roller 4 is stopped. Therefore,
The film is stopped and waiting at the film clamping conveyance roller 4 of the first film supply section 2. In this state, the film from the second film supply section 6 passes through the film transport detection section 16 of the film transport detection section 11 and the output becomes "0", and the output "0" is inverted by the inverter G1. becomes “1” and enters timer 19.
Since both inputs of OR gate G2 become "0", the output from G2 becomes "0", and further inverted by inverter G3, the output becomes "1".
The output "1" of the inverter G3 is input to the AND gate G13 directly and also via the inverter G12 and the R/C circuit, so the output of G13 is "1".
Then, reset FF2. FF2's is
It becomes "1" and enters the other input terminal of AND gate G4. One input terminal of AND gate G4 has already received "1" from film transport detection section 5, so "1" is output from G4.
When a trigger pulse is applied to FF1, Q of FF1 becomes "1", so the film clamping conveyance roller driving section 4a is driven via OR gate G10 and OR gate G11, and as a result, the film clamping conveyance roller 4 rotates. do.

On the other hand, "1" from inverter G3 is
It is input to one side of AND gate G15. At this time, the signal from the film transport detection section 5 is "0".
And the “1” inverted by inverter G14 is
Since it is input to the other side of AND gate G15, AND
Outputs 1 from gate G15 and outputs 1 from OR gate G1.
The suction cup is activated by driving the suction cup driving section 3a via the suction cup 7.

As explained above, in this invention, in the first film supply section 2, a large number of films in the film storage section 1 are separated and supplied one by one in an intermittently regular manner by the suction cup 3 and the film clamping conveyance roller 4. When the films are fed one by one from the second film supply section 6 into the film collecting section 10 and being supplied to the automatic developing machine 18 via the rollers 2, the films in the first film supply section 2 are By automatically stopping the film supply, the film can be fed through the film transport section 14 to the automatic developing machine 18 without conflict at the film collection section 10, and furthermore, when the film supply from the second film supply section 6 is stopped, the film can be automatically supplied from the first film supply section 6. Since the operation of the film supply section 2 can be restored, the film can be processed with one automatic developing machine, resulting in labor savings.

Note that the first film supply section 2, the second film supply section 6, the film collection section 10, and the film transport section 1
If 1 is disassembled so that it can be made independent, the first film supply section 2 and the second film supply section 6 will be
Since each can be directly connected to the automatic developing machine 18, it can also be used as a dedicated machine as an automatic film feeder or a manual film feeder. Furthermore, if the first film supply section 2 is provided with an insertion port for inserting films one by one, and the film clamping conveyance roller 8 of the second film supply section 6 and the film conveyance detection section 9 are provided, the second film supply section It is also possible to omit 6. In that case, it is naturally necessary to install a portion corresponding to the film collection section 10 in the first film supply section 2.

[Brief explanation of the drawing]

FIG. 1 is a side sectional view of the sheet film conveying device, and FIG. 2 is a block circuit diagram showing the control system shown in the above figure. DESCRIPTION OF SYMBOLS 1... Film storage part, 2... First film supply part, 6... Second film supply part, 3... Suction cup,
4, 8...Film clamping conveyance roller, 5, 9, 1
6... Film transport detection section, 17... Controller (control section).

Claims (1)

[Scope of utility model registration request] A first supply section 2 in which a large number of photographed sheet films are intermittently taken out one by one by an automatic separation mechanism 3 from a film storage section and automatically supplied to a developing machine; A second supply section 6 is provided which can separately supply the sheet film during continuous supply, and the automatic separation mechanism of the first supply section 2 is activated by a detection signal from the second supply section 6 in the sheet film conveyance detection section. 3, and when the sheet film is being detected by the film transport detection section 5 provided between the automatic separation mechanism 3 of the first supply section 2 and the developing machine, the film is transported and the A photosensitive sheet film supplying apparatus characterized in that when the sheet film from the second supplying section 6 is not detected by the conveyance detection section, the sheet film from the first supplying section 2 is automatically continuously conveyed.