JPS6358349B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION In particular, even if a long photographic film having different image frame sizes is spliced together after processing, it can be cut into required lengths and placed in a negative cover or the like. This invention relates to an improvement of a long photographic film conveying device for an auto cutter to make it easier to store.

Traditionally, in photo labs, photographic film (hereinafter simply referred to as film) has been processed.
Negative film (also called negative film) is separated by image frame size, such as full-size image frame film and half-size image frame film, and is then connected to each frame using splicing tape (hereinafter referred to as negative film).
This is sometimes called long film or long negative film), and after printing on photographic paper,
In order to make it easier to store and manage them with a negative cover, they were cut into predetermined lengths, but the separation by size, that is, the sorting and joining operations by size, was complicated and required manpower. There were also mistakes in the sorting operation, which caused problems in the process. This tendency is further exacerbated by the rapid increase in the rate of film consumption and when so-called cine-type development, in which films are bonded in advance and then developed, is used, and there is an urgent need to improve this problem.

In view of the above-mentioned current situation, the present invention has been devised to detect the joining point of each film and the notch made on each frame, even if the film is a long film in which films with different image frame sizes are joined. This invention makes it possible to provide a long photographic film conveying device for an auto cutter that can determine the frame size, determine the cutting position for each film with different image frame sizes based on this size data, and cut the film. The invention will be explained in detail with reference to an illustrated embodiment in which the invention is applied to a film enveloper.

First, as shown in FIG. 1, only the constituent parts of a film enveloper equipped with a long photographic film conveying device for an auto cutter according to the present invention will be described. 1 is a main switch, 2 is a film Reel, 3 is a hub, 4 is a film selection dial, 5 is a selection switch, 6 is a negative cover cutting switch, 7 is a roll-shaped negative cover mounting shaft, 8 is a negative cover core, 9 is a rolled negative cover A rolled negative cover, 10 a negative cover press roller, 11 a negative cover mark sensor, 12 a negative cover cutter, 13 a tension roller, 14 a reel support, 15 a film position adjustment knob, 16 a film guide, Reference numeral 17 denotes a film drive unit consisting of a film presser roller and a film feed roller installed below and driven by a pulse motor, which will be described later; 18 a start switch; 19 a negative cover feeding guide; 20 a film drive unit; The front plate, X, is a cover for various detection parts, a film cutter, etc. in the auto cutter according to the present invention.

FIG. 2 and subsequent figures show the structure of the long photographic film conveying device for an auto cutter according to the present invention, which is incorporated in the film enveloper as described above.
To explain along with its operation, in Fig. 2, F
denotes a film conveyed by the film drive section 17, and S is arranged and installed on the way of conveyance of the film F, and is used to convey a full-size negative film _F1 or a half-size negative film as shown in FIG. _F2
The notches N ₁ , N ₂ (in this example, the center part) etc. are made at the center of the upper edge of each frame of the negative film F, and the negative film F.
Specifically, the notch detecting section S1 detects the notch N formed on the upper edge of the negative film F, and the notch detecting section _S1 detects the notch N formed on the lower edge of the negative film F (not shown). , N ₁ and N ₂ )) and a splice detection section S ₂ that detects the joint P of _the negative film F. K is notch detection part
This is a cutting position located at a predetermined position from S ₁ and S ₃ , and a cutter is installed here, and the cutter is precisely stopped at this cutting position K between the image frames of the negative film F. It is necessary to do so. For this purpose, it is necessary to know the distance d between the notch detectors S ₁ and S ₃ and the cutting position K, and the distance e between the stop reference notch N _o and the cutting position K. That is, after the notch detection units S ₁ and S ₃ detect the stop reference notch N _o (the notch of the next piece in the interval to be cut),
As is clear from FIG. 2, the length f required to reach the cutting position K between the image frames of the negative film F is de, and the current notches N ₁ , N ₂
The distance d is set to 31 mm because of the distance d is applied to the center of each piece. Then, in the case of full size, the size of one image frame is 24 × 36 (mm), and the image frame gap is usually 2
Since the conveyance length f required after the detection of the stop reference notch _No. Image frame size is 18
×24 (mm) and the image frame gap is usually about 1 mm, so the conveyance length f required after the detection of the stop reference notch _No is calculated as (31-19/2) and becomes 21.5 mm.

As described above, since the transport length f required after detecting the stop reference notch N _o varies depending on the size of the image frame, it is first necessary to determine the size of the image frame before detecting the stop reference notch N _o . The size determination of the image frames of the negative film F is performed by the size determination circuit A shown in FIGS. 3 and 4. Below, we will take as an example the case where there are two types of image frame sizes: full size and half size. Explain how to determine the size.

The full-size frame spacing measurement circuit A ₁ and the half-size frame spacing measurement circuit A ₃ receive notch detection signals S ₁ ,
It is automatically reset by inputting _S3 , detects the number of pulse signals between each notch detection signal, and only when this matches the number of pulse signals corresponding to full size or half size stored in advance, Sends a signal to full-size piece counter A ₂ or half-size piece counter A ₄ , respectively. In other words, the number of pulses between the notch detection signals input to the full-size frame interval measuring circuit _A1 and the half-size frame interval measuring circuit _A3 is the number of pulses corresponding to a full-size image frame (the number of pulses corresponding to 38 ± 2 mm). When , a signal is sent from the full-size piece spacing measurement circuit A ₁ to the full-size piece counter A ₂ ,
Full size piece counter A ₂ counts, while
When the number of pulses between the notch detection signals is the number of pulses corresponding to a half-size image frame (the number of pulses corresponding to 19±1 mm), a signal is sent from the half-size frame interval measuring circuit A ₃ to the half-size frame counter A ₄ . is sent, and half-size piece counter A ₄ counts. In addition, the number of pulses is 38±2mm, 19±1
The reason why there is a range in the number of pulses, such as the number of pulses corresponding to mm, is due to errors in notching and unevenness in the length of the image frame gap.

If all image frames are normal image frames,
When the full size piece counter A ₂ counts 1, the size determination signal transmitting circuit A ₅ determines that the piece is full size based on the signal from the counter A ₂ ,
On the other hand, when the half-size piece counter _A4 counts 1, the size determination signal generating circuit _A5 may determine that the piece is half-size based on the signal from the counter _A4 . However, in reality, there are not only normal image frames, but also abnormalities such as cases where there is no image due to forgetting to remove the cap during shooting, etc., as shown in Figure 5.
Even though it is a half-size image piece, it is notched as if it were a full-size image piece, and only the full-size counter counts it, or even though it is a full-size image piece. , a notch is applied as if it were an image frame twice this size, and there are cases where neither the half-size piece counter A ₄ nor the full-size piece counter A ₂ is counted. Since it is dangerous to judge the size, it is necessary to count multiple pieces to judge the size.

The more times the frame is counted before size determination, the more accurate the size determination will be.However, when stopping the feed of the negative film in order to insert it into the negative cover and cut it, The length of the negative cover is about 6 full-size image frames and about 12 half-size image frames, so the size must be determined fairly early on.

Therefore, for example, if the full-size piece counter A ₂ counts twice consecutively, or if it counts three times discontinuously, the full-size piece counter
The size judgment signal sending circuit sends a signal from A ₂ to the size judgment signal sending circuit A ₅ and receives the signal.
A ₅ is determined to be full size and the size data signal is
Send a ₁ and also half size piece counter A ₄
If it counts even once, the half size piece counter A ₄ sends a size judgment signal transmission circuit A ₅
Size determination signal transmission circuit A ₅
is determined to be half size, and the size data signal a ₂
Send. If the signal from the full-size piece counter A ₂ and the signal from the half-size piece counter A ₄ conflict in the size determination signal generation circuit A ₅ , the signal from the half-size piece counter A 4 is given priority and the signal from the half-size piece counter A ₄ is compared to the half-size piece counter A 4. The size data signal _a2 is transmitted.

As described above, it is possible to have the size determination circuit A perform size determination with a relatively small number of frame counts, but it is more accurate to perform size determination with a larger number of times, so the size determination circuit A can be made to perform size determination with a relatively small number of pieces. It is desirable to continue this process and always be able to modify the size determination.

In this way, the full-size signal a ₁ and the half-size signal a ₂ of the size data signals judged by the size judgment circuit A are sent to the AND circuit C ₁ and the AND circuit C ₂ , respectively, as shown in FIG. sent,
It is used to determine the transport length f required after the stop reference notch N _o is detected.

Next, along with the size data signal a ₁ or a ₂
The stop reference notch detection signals b ₁ and b ₂ sent to the AND circuit C ₁ and the AND circuit C ₂ will be explained with reference to FIGS. 6, 7, and 8.

The notch detection signals S ₁ and S ₃ are as shown in FIG.
AND circuit C ₁ every time all notches are detected
In this state, a series of stop operations will start every time the notch detection signals S ₁ and _{S 3 are} input, which is inconvenient, so the negative film F passes only a predetermined length. It is necessary to set the notch N after this as the stop reference notch _No , and to add a condition for detecting this.

Therefore, a stop condition determining circuit B is provided, and the detection of the stop reference notch _No incorporated in this circuit B starts when the counter _B1 starts counting pulse signals at the same time as the negative film F starts to be driven.
At this time, the counter _B1 operates according to the size data signal. For example, when the size data signal is the full size signal _a1 , the counter B1 outputs the count signal b-1 and the count signal b-2 as shown in FIGS. 6 and 7. Sends a count signal. When the half-size signal a is ₂ , the count signal b is as shown in Figures 6 and 8.
-3 and count signal b-4 are transmitted. That is, when the image frame is full size, the count signal b-1 is calculated from the length of, for example, 38 x 5.6 mm from the starting edge of the negative film F ₁ to the notch detection parts S ₁ and S ₃ and the cutting position K. It is the number of pulses corresponding to the length subtracted by the interval d, and the count b-1
is the number of pulses corresponding to the length obtained by subtracting the distance d between the notch detection portions S ₁ and S ₃ and the cutting position K from the length of, for example, 38×6.6 mm from the starting edge _of the negative film F 1 . The count signal b-2 has a greater number of pulses than the count signal b-1 by approximately one frame. The reason for subtracting the number of pulses corresponding to the distance d between the notch detectors S ₁ and S ₃ and the cutting position K from the count signal b-1 and the count signal b-2 is that the starting edge of the negative film F has already been cut. Position K
This is because even if the counter _B1 starts counting at the start of driving, it cannot count the number of pulses corresponding to the distance d between the notch detection parts _S1 , _S3 and the cutting position K.

When the image frame is half size, the count signal b-3 is generated from the starting edge of the negative film _F2 , for example.
The number of pulses corresponds to the length of 19 x 12.6 mm minus the distance d between the notch detection parts S ₁ and S ₃ and the cutting position K, and the count signal b-4 is the starting edge of the negative film F _2. For example, the number of pulses corresponds to the length obtained by subtracting the distance d between the notch detection parts S ₁ and S ₃ and the cutting position K from the length of 19×13.6 mm.

When counter B ₁ sends the count signal of count signal b-1, the window is
W ₁ (electronic window) is opened and its signal is input to AND circuit C ₁ . When the counter B ₁ transmits the count signal b-2, the window W ₁ is closed by that signal, and the AND circuit C ₁
The signal to is stopped. Therefore, the notch detection signal becomes the stop reference notch signal only when the notch detection signal is input to the AND circuit _C1 when the window _W1 is open.

The relationship between count signals b-3, b-4 and window _W2 is as follows: count signals b-1, b-2 and window
This is the same as the relationship with _W1 , and it is also the same that the notch detection signal becomes the stop reference notch signal only when the notch detection signal is input to the AND circuit _C2 when the window _W2 is open. .

Next, the final notch interval confirmation signal that is input to the AND circuit _C1 or the AND circuit _C2 and is finally utilized will be explained. This notch interval confirmation circuit B ₂
Checks whether the notch interval is as per the size data signal, and only when it is as per the size data signal, AND circuit C ₁ becomes AND circuit C ₂
The notch interval confirmation signal b ₃ or b ₄ is transmitted, but the AND circuit C ₁ in this signal
Notch interval confirmation signals b, ₃ , b, and ₄ used in AND circuit _C2 indicate that the interval between the stop reference notch _No. and the immediately preceding notch _No. size)
Only when .

The reason for checking the final notch interval is that there may be an abnormality in the final image frame or the notch may not be properly notched _. It is preferable that the operator take appropriate action without automatic disconnection.

In this way, AND circuit C ₁ becomes AND circuit
If the size data signal, stop reference signal and final notch interval signal are input to _C2 ,
Counter D ₁ or counter D ₂ starts operating. Counter D ₁ or counter D ₂ counts the number of pulses corresponding to the length f required for conveying to the cutting position K after the notch detection parts S ₁ and S ₃ detect the stop reference notch _No. Either one is activated depending on whether the size of the image frame is full size or half size. When counter D ₁ or counter D ₂ counts a predetermined number of pulses, it sends a stop signal to drive circuit E to stop pulse motor M, and also sends a signal to OR circuit H to activate automatic disconnection device I. Let it start.

In the above, the negative film F is lengthened to a predetermined length, for example, in the case of a negative film _F1 with full-size image frames, the length of 6 frames is lengthened, and the length of a half-size negative film is
In the case of _F2 , the case where cutting is performed to a length of 12 frames has been described, but at the joint between the negative films F, it is necessary to cut even if the length does not reach a predetermined length. Therefore, the splice detector (infrared detector) _S2 detects the infrared shielding object that is the joint between the negative films F and F, and inputs the signal to the counter _D3 to start counting. D ₃
counts the number of pulses corresponding to the deviation between the splice detector _S2 and the cutting position K (accurately, it depends on which position in the joint is to be cut), then it sends a stop signal to the drive circuit E. At the same time, a signal is sent to the OR circuit H to start the operation of an automatic disconnection device (not shown). When the drive circuit E is turned off, the drive stop signal h is input to the size judgment circuit A and the stop condition judgment circuit B, temporarily stopping their respective functions, and also turning off the counters A ₂ , A ₄ , B ₁ and the notch. The counter inside the interval confirmation circuit _B2 , the outside of the counter _B3 , counters _D1 , _D2 , windows _W1 , W2 _, etc. are reset, and each function starts operating by inputting a drive start signal.

When the AND circuit satisfies all conditions,
Counter D ₁ or Counter D ₂ as mentioned above
starts operation, but if there is no stop reference notch _No within a predetermined range of the negative film F, the size cannot be determined, or the final notch interval _l1 or _l2 is outside the standard, etc. If the condition is not satisfied, counter _B3 , which starts counting at the start of driving, starts counting b-2.
And when the predetermined count is a little more than count b-4, an alarm stop signal g is sent to the alarm buzzer G and the drive circuit E, and the pulse motor M is stopped at the same time as the alarm buzzer G sounds. Since the cutting signal i is not transmitted, the operator can take appropriate action and miscuts can be prevented.

The case has been described in which there are two sizes of image frames, full size and half size, and a notch is placed above the center of each image frame. Needless to say, it can be applied regardless of the situation.

As is clear from the above description, the long photographic film conveying device for an auto cutter of the present invention is capable of transporting each image of the long photographic film in which long photographic films having different image frame sizes are joined and conveyed in a predetermined direction. In addition to determining the size of the image frame by detecting the notches made for each frame, we also detect and measure the interval between the stop reference notch and the final notch after the image frame has been conveyed a predetermined length from the start of driving, thereby detecting any abnormalities in the image frame. Not only does it enable an appropriate automatic stop even if there is an abnormality, it also enables automatic cutting at the same time. It has additional usefulness.

[Brief explanation of the drawing]

The drawings show an embodiment of a long photographic film conveying device for an auto cutter according to the present invention.
Fig. 1 is a perspective view of a film enveloper to which the device is applied, Fig. 2 is a schematic explanatory diagram of the relative position between the detection section and the film cutting position in the film enveloper, and Fig. 3 is a signal processing block diagram. , Figure 4 is a block diagram of the size determination circuit, Figure 5 is a block diagram of the size determination circuit.
Figure 6 is an explanatory diagram of an abnormal image frame, Figure 6 is a block diagram of a stop condition determination circuit, Figure 7 is an explanatory diagram illustrating the stop conditions in the stop condition determination circuit for a full-size image frame, and Figure 8 is a stop condition determination circuit. FIG. 3 is an explanatory diagram illustrating a stop condition in a circuit for a half-size image frame. 1: Main switch, 2: Film reel,
3: Hub, 4: Film selection dial,
5: Selection switch, 6: Negative cover cutting switch, 7: Negative cover mounting shaft, 8: Negative cover axis, 9: Negative cover, 10: Negative cover presser roller, 11: Negative cover mark sensor, 1
2: Negative cover cutter, 13: Tension roller, 14: Reel support, 15: Position adjustment knob, 16: Film guide, 17: Film drive section, 18: Start switch, 19: Negative cover feeding guide, 20 : Front plate, A: Size judgment circuit, A ₁ : Full size piece spacing measurement circuit,
A ₂ : Full size piece counter, A ₃ : Half size piece spacing measurement circuit, A ₄ : Half size piece counter, A ₅ : Size judgment signal generation circuit, B: Stop condition judgment circuit, B ₁ , B ₂ : Counter, B ₂ : Notch interval confirmation circuit, C ₁ , C ₂ : AND circuit, D ₁ , D ₂ ,
_D3 : Counter, E: Drive circuit, F, _F1 , _F2 :
Photographic film, G: Alarm buzzer, H: OR circuit, I: Automatic cutting device, K: Cutting position, M: Pulse motor, N: Notch, No _-1 : Notch immediately before stop reference notch, _No : Stop Reference notch, P: joint part, S: detection part, S ₁ , S ₃ : notch detection part, S ₂ :
Splice detection section, W ₁ , W ₂ : Window, X: Cover, a ₁ , a ₂ : Size data signal, b ₁ , b ₂ : Stop reference notch detection signal, b ₃ , b ₄ : Notch interval confirmation signal, b -1, b-2, b-3, b-4: Count signal, d: Distance between notch detection parts S ₁ , S ₃ and cutting position K, e: Distance between stop reference notch and cutting position, f: Transport length after detection of stop reference notch, g: alarm stop signal, h: drive stop signal, i: automatic cut signal, l ₁ , l ₂ : final notch interval.

Claims (1)

[Scope of Claims] 1. A long photographic film in which the image frames are joined and connected regardless of their size and each image frame is marked with a notch or the like is conveyed by a predetermined length, and The long photographic film conveying device in the automatic cutter that cuts the long photographic film includes: (a) a pulse transmitting circuit that transmits pulse signals for driving the long photographic film conveying member, determining image frames of the long photographic film, determining stop conditions, etc.; , b a conveying member for conveying the long photographic film by a distance corresponding to the pulse signal from the pulse transmitting circuit, c a notch etc. made on the long photographic film corresponding to the image frame of the long photographic film. a label detection member; d; a size determination circuit that receives a pulse signal from the pulse transmitting circuit and a signal from the label detection member, determines the size of the image frame of the long photographic film, and transmits a signal for each size of the image frame; e On the one hand, after the image frames of the long photographic film are conveyed by a predetermined length for each different size image frame, a pulse signal is passed through for about one frame that is subsequently conveyed, and on the other hand, the long photographic film is A stop condition judgment circuit that constantly measures the notch intervals on the film and sends out a confirmation signal; It is activated by an input signal and performs a pulse signal counting operation of a pulse transmitting circuit determined for each different frame image of a long photographic film, and after the counting operation is completed,
On the one hand, a counter transmits a signal to stop the conveyance operation of the conveying member, and on the other hand, activates the cutter and transmits a signal to cut the long photographic film; A long photographic film transport device for an auto cutter, characterized by comprising a circuit.