JP3452186B2 - Film sheet processing equipment - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention stops the transport of a film sheet on the basis of an index sensor detecting an index formed on the film sheet supplied from a film sheet supply section, and inserts the film in this stopped state. A light source which is configured to operate the mechanism to insert the photographic film into the pocket portion of the film sheet, or to operate the cutting mechanism to cut and separate the film sheet, and which sends the light beam which the index sensor transmits to the film sheet. The present invention also relates to a film sheet processing apparatus including: a light receiving unit that receives a light beam that has passed through a film sheet; and a determination unit that determines whether or not an index is detected based on an electric signal from the light receiving unit.

[0002]

2. Description of the Related Art Japanese Patent Application Laid-Open No. 7-33381 discloses a device similar to the film sheet processing apparatus constructed as described above.
No. 8 publication exists, and in this conventional example, when a sheet mark (index) printed on a negative sheet (film sheet) is detected, conveyance of the negative sheet is stopped and the negative sheet is cut by the operation of a rotary cutter. It has become a thing. In addition, a light source that emits a light ray that passes through the film sheet as a means for detecting the sheet mark and a light receiving means that receives this light ray are provided, and the light ray is blocked by the sheet mark, and the amount of light ray received by the light receiving means is reduced. There is one that detects a sheet mark based on the above. In this conventional technique, a detection circuit is configured as shown in FIG. That is, the light receiving element 6 formed of a phototransistor that receives a light beam from the light source 60 formed of a light emitting diode.
The variable resistor VR is added to the conduction system that applies the voltage from the power source to 1.
In addition to the above, a system for guiding the signal from the light receiving element 61 to the input terminal (-) of the comparator 62 is formed, and the voltage from the power source is divided by the two resistors r1 and r2 to determine the determination means Q.
By forming a system for guiding to the reference terminal (+) of the comparator 62 as a threshold, the voltage applied to the reference terminal (+) is set to a threshold value, and the light beam from the light source 60 is transmitted through the film sheet. Then, since a low voltage acts on the input terminal (-) and falls below the threshold value, the signal voltage at the output terminal maintains a high voltage value, and when the light beam from the light source 60 is blocked by the sheet mark (index), Since the voltage applied to this input terminal (-) becomes higher than the threshold value, the voltage at the output terminal is inverted and switched to a low voltage.

[0003]

However, although the film sheet currently used uses a transparent and flexible resin sheet, when the resin sheet is colored, the light amount of the light beam received by the light receiving element 61 is low. It is considered that the voltage applied to the input terminal (-) exceeds the threshold value. Similarly, even when the performance of the light source 60 deteriorates and the light amount decreases, the light amount of the light beam received by the light receiving element 61 is low. Terminal (-)
It is conceivable that the voltage applied to the voltage may exceed the threshold value and lead to erroneous detection. It is also possible to set the threshold value to a high voltage for the purpose of avoiding this inconvenience, but when the threshold value is set to a high value in this way, printing on the film sheet is insufficient and the density of the index is low. Can no longer be detected, and there is room for improvement in these points.

An object of the present invention is to reasonably configure a device for surely detecting an index in determining the transport position of the film sheet based on the fact that the index blocks the light rays transmitted through the film sheet. is there.

[0005]

A first feature of the present invention (claim 1) is that the film sensor is based on the fact that the index sensor detects an index formed on the film sheet supplied from the film sheet supply section. Is stopped, and in this stopped state, the film insertion mechanism is operated to insert the photographic film into the pocket portion of the film sheet, or the cutting mechanism is operated to cut and separate the film sheet. The index sensor includes a light source that emits a light beam that is transmitted through the film sheet, a light receiving unit that receives the light beam that has transmitted through the film sheet, and a determination unit that determines whether the index is detected or not based on an electrical signal from the light receiving unit. In the film sheet processing device configured as described above, the film sheet processing device is arranged at intervals in the transport direction of the film sheet.
A pair of the index sensors is placed at the position, and the pair of index sensors
Sensor with one of the sensors detecting the index.
The film insertion machine for the pocket portion of the film sheet
The structure is at a position where the photographic film can be inserted, and the pair of
When the other of the index sensors detects the index,
The intermediate position between the pockets of the film sheet.
So that the cutting mechanism is in a position where the pair can be cut.
Index sensor, the film insertion mechanism, and the cutting machine
The point is that the relative positional relationship with the structure is set , and its action and effect are as follows.

A second feature of the present invention (claim 2) is that in claim 1, a film is inserted by the film inserting mechanism.
Based on the position, above the film sheet transport direction
Expand the pocket opening of the film sheet to the flow side.
A magnifying guide, and use the film insertion mechanism
The film sheet is transported based on the film insertion position.
The cutting mechanism is arranged on the downstream side in the feeding direction , and its action and effect are as follows.

A third feature (claim 3) of the present invention is the claim.
1 or 2, the light from the light source is blocked by the index.
And when the amount of light rays received by the light receiving means decreases.
The threshold value is the threshold of this light receiving means in the area other than the index.
Set to a value that corresponds to the amount of light rays that have passed through the rum sheet.
The threshold at the time of index detection and the state of non-detection from this detection state
Hysteresis with a difference in the threshold for switching to
The determination means is configured to be set , and its operation and effect are as follows.

A fourth feature of the present invention (claim 4) is that in claim 1 or 2 , the light receiving means is composed of an optical sensor which outputs a voltage signal according to the amount of received light. Equipped with a converter for digitizing the voltage signal, setting a digitized signal corresponding to the light rays passing through the film sheet as a threshold value, and comparing the threshold value with a signal from the digitized light sensor to indicate an index. Detection of the
The discriminating means is configured by including software for discriminating non-detection, and its operation and effect are as follows.

A fifth feature of the present invention (claim 5) is that in claim 4, a hysteresis is provided by making a difference between the threshold value at the time of index detection and the threshold value for switching from the detection state to the non-detection state. The processing form of the software is set so as to be set, and its operation and effect are as follows.

[Operation] According to the first feature, one of the pair of index sensors is used.
The person who detects the index, the pocket of the film sheet
Insert the photographic film into the
And the other of the pair of index sensors detects the index
In the middle, between the pockets of the film sheet
The cutting mechanism can cut the position.

According to the second feature, the enlargement guide is used.
Film sheet with the opening of the pocket enlarged
On the other hand, you can insert the film with the film insertion mechanism.
The cutting machine on the downstream side of the fill sheet with the film inserted
You can cut at the structure.

According to the third feature, the light beam from the light source is
Is the amount of light rays that have passed through the film sheet in areas other than the index
Since the threshold is set to the value corresponding to
Light is low due to poor performance of the light source
Even if the amount of light received by the light
The light amount lower than the decreased light receiving amount is set as the threshold
It becomes possible to make mistakes like the one with a fixed threshold.
Good even if the index is not clear because it does not lead to detection
It is possible to detect the threshold value at the time of detection.
Has a distinction in the threshold value for switching from the output state to the non-detection state
The discrimination means is configured so that the hysteresis that is set is set.
Therefore, the contour of the formed index on the film sheet is
The index is checked, such as when it is clear or when there are shades on the outline.
When it is output, the voltage signal from the light receiving unit changes near the threshold value.
This signal exceeds the threshold and the comparator
After the output signal of the
It is possible to avoid the phenomenon of reversing many times.

According to the fourth feature, since the light sensor receives the light beam from the light source which has transmitted through the area other than the index of the film sheet, the voltage value of the light sensor is digitized by the converter and set as the threshold value. Even if the amount of light received by the light-receiving means decreases, such as when the film sheet is colored or when the light source performance deteriorates and the amount of light decreases, the amount of light that is lower than the decreased amount of light received is automatically detected. It becomes possible to detect the index by comparing the threshold value with the digitalized voltage value from the optical sensor, and the index does not lead to erroneous detection like the one with the fixed threshold value. Even if it is unclear, it can be detected well.

According to the fifth feature, since the hysteresis is set, the optical sensor detects the index such as when the contour of the index formed on the film sheet is unclear or when the contour has shading. Even when the voltage signal from the optical sensor fluctuates, the phenomenon that the detection state and the non-detection state occur many times after the signal from the optical sensor exceeds the threshold and reaches the state of detecting the index. Can be avoided.

[Effect of the Invention] Therefore, the film system is detected based on the detection of the pair of index sensors.
Insert the photographic film into the
The cutting device can be cut, and the device that can reliably detect the interruption of the light beam transmitted through the film sheet by the index and accurately determine the transport position of the film sheet has been rationally constructed. In addition, a simple combination of electric elements enables reliable detection of the index, avoids chattering regardless of the formation state of the index, and maintains a stable detection state. In the case of using a microprocessor, A / D conversion is performed. It is possible to reliably detect the index only by adding hardware to the extent that it is equipped with a device and setting the software, and it is possible to avoid chattering and maintain a stable detection state irrespective of the formation status of the index only by improving the software. It was a reward.

[0016]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. The film sheet processing apparatus of the present invention is incorporated in a photographic processing apparatus that automatically prints an image of a photographic film on photographic paper and automatically performs development processing. The photographic processing apparatus is schematically shown in FIGS. 1 and 2. Is shown in. In this photographic processing apparatus, an image of the negative film 1 sent from a supply section A of the negative film 1 as a photographic film is exposed in an exposure section B for printing on a photographic paper 3 from a photographic paper magazine 2 and an exposure section B. A development processing section C for developing the photographic printing paper 3, a drying section D for drying the photographic printing paper 3 developed in the development processing section C, and cutting the dried photographic printing paper 3 into a predetermined length for printing (predetermined printing). A print ejecting section E for ejecting the developed photographic paper cut into lengths as a print 3) and a negative film 1 used in the exposing section B to cut as a piece negative 1a and as a film sheet. Negative sheet discharging portion F which inserts into the pocket portion 4a of the negative sheet 4 (see FIG. 4) and cuts and discharges the negative sheet 4 into which the piece negative 1a for one order is inserted, and this negative sheet Negative sheet 4 from the discharge section F
And a conveyor mechanism G that conveys the print 3 from the print ejecting section E to a position where a worker takes out a finished product.

In the negative film supply section A, 100
A bar code for reading the bar code provided on the negative film 1 drawn out from the negative reel 5 so that two negative reels 5 wound by winding up the negative film 1 up to a book by splicing tape can be loaded. 1 for the leader 6 and the drawn negative film 1
An order cutter 7 that cuts each order and a splice detection sensor 8 are provided. Further, a piece negative insertion portion 9 is provided at an intermediate portion of the negative film transport path from the negative reel 5 to the exposure portion B. That is, in the exposure section B, the negative film 1 lengthened by the splice tape is cut again by the order cutter 7 into a length corresponding to one order, and the negative film 1 cut into 6 or 4 frames. 1a is configured to be exposed.

In the exposure section B, a film reading device 11 is provided on the upper side in the film transport direction, and an exposure device 12 including a light source for exposure, a light control filter, a baking lens, etc. is provided on the lower side in the film transport direction. There is. From the negative film supply section A, through the exposure section B, to the negative sheet discharge section F
The negative film transporting route up to is formed by the transporting roller schematically shown in FIG.

Although not shown in the development processing section C,
A plurality of development processing tanks are provided, and after the image of the negative film 1 or the piece negative 1a is printed in the exposure section B, the development processing is performed by sequentially passing through the development processing tank of the development processing section C. In addition, in the case where there is a situation in which it is not possible to continuously feed the photographic printing paper 3 between the exposure section B and the development processing section C, despite the presence of the loop section, on the front side of the development processing section C, Auxiliary cutter 13 that cuts photographic paper for emergency evacuation
Is provided. The photographic printing paper 3 after the development processing is dried in the drying section D.
After being dried by (1), it is sent to the print ejecting section E and cut by the paper cutter 14 to form the finished print 3, which is sent to the conveyor mechanism G by the lateral feed conveyor 15.

The conveyor mechanism G, as shown in FIG.
The tray conveyor type is provided with a plurality of trays 19 which are fed while being guided to the circulation guide path 18 by a driving means (not shown). Negative sheet carry-in station G1 and waiting station G2
A print carrying-in station G3 and a collating station G4. Further, the orbiting guide path 18 is a negative sheet discharging portion F arranged at a lower position of the photographic processing apparatus.
Is formed at a position along the side walls of the development processing section C and the drying section D between the print discharge section E disposed at a high position.

The negative film having a length of one order, which has been exposed in the exposure section B, is a film processing apparatus H (an example of a film sheet processing apparatus) disposed on the lower side of the exposure apparatus 12 in the film transport direction. 6 frames (or 4
Each piece is cut and inserted into the negative sheet 4 in the state of the piece negative 1a.
When the insertion of the piece negative 1a for the order is completed, the negative sheet 4 is cut, wound up in a small size by the winding device J, and sent out from the negative sheet discharge section F.

As shown in FIG. 3, the negative sheet 4 is formed by folding and stacking a long resin sheet made of a flexible and transparent thin film material (in the figure, the right end portion is the folding position and is open to the left side). In this state, pocket portions 4a that are opened laterally are formed continuously by heat welding with two welding lines SL, SL in a direction orthogonal to the negative sheet 4. Further, the welding lines SL, SL are set to have an interval of about 8 mm, and the two heat welding lines S
The distance between L and SL and the two welding lines SL and SL adjacent to each other is set to be slightly wider (about 43 mm) than the width of the negative film 1, and the positioning is performed at an intermediate position between the two welding lines SL and SL. The index M is formed by printing.

As shown in FIGS. 2 to 4, the film processing apparatus H cuts the negative sheet 4 with a film insertion mechanism Ha for feeding the negative film 1 into the negative sheet 4, a negative sheet conveying section Hb for feeding the roll-shaped negative sheet 4. The sheet cutter Hc (an example of a cutting mechanism) and a discharge unit Hd that sends out the cut negative sheet 4 are configured.

The film insertion mechanism Ha has a plurality of rollers 21 for feeding the negative film 1 in a sandwiched state, a stepping motor type roller motor 21A for driving the rollers 21, and a negative roller fed by the first roller 21. A pair of upper and lower film cutters 22 and 22 arranged at shearing positions so as to cut the film 1 and an electric actuator 22A such as an electromagnetic solenoid for driving the upper film cutter 22 are provided. Two buffer loops are formed on the good side, and the position of the frame image is determined based on the light beam transmitted from the light source 23 through the negative film 1 so as to discriminate the image of the negative film 1 in the conveyance path of the negative film 1. CCD line sensor 24 for discriminating between
Is equipped with.

The negative sheet conveying section Hb includes a pair of guide rollers 25 and a pair of conveying rollers 26 for sandwiching and feeding the negative sheet 4, a stepping motor type conveying motor 26A (an example of an actuator) for driving the conveying rollers 26, An expansion guide 27 that expands the opening of the negative sheet 4 at the film insertion position is provided, and an optical first index sensor MS1 (an example of a light receiving unit) that detects the index M in the transport system and a second index sensor MS2 ( An example of the light receiving means) is provided at a position separated by a distance D along the conveyance direction of the negative sheet 4.

As shown in FIGS. 4 to 6 (a) and (b),
The sheet cutter Hc is a plate provided with a slide member 30 guided by a pair of guide rods 29 arranged below a path along which the negative sheet 4 is conveyed, and a plate displaceable in the vertical direction with respect to the slide member 30. 31, a roller 33 that is rotatably supported by a support shaft 32 that is fixed to the plate 31 in a posture along the conveyance direction of the negative sheet 4, and a holder 34 that is non-rotatably provided on the support shaft 32. The cutter blade 35 and the timing belt 37 which is wound around the pair of timing pulleys 36, 36 so as to reciprocate the slide member 30 and is connected to the slide member 30, and one of the pair of timing pulleys 36, 36. And a stepping motor type cutting motor 38 for rotating and driving the blade, and a path (cutting position) in which the cutter blade 35 reciprocates. Upwards it is constituted by a pressing member 39 having a groove 39A is formed so as to allow the actuation of the cutter blade 35). The plate 31 is the slide member 3
A stopper 31A that is urged upward by a spring 40 against 0 and contacts the end of the guide groove of the slide member 30 to determine the upper limit of movement is formed on the plate 31. The cutter blade 35 sets the four corners of the square material as cutting blades, positions each corner slightly inward of the outer circumference of the roller 33, and cuts the cutter blade 35 due to abrasion. When the performance deteriorates, it can be supported in a posture rotated by 90 degrees with respect to the holder 34 so that the corner toward the top can be replaced.

As shown in FIG. 2, the discharge section Hd is composed of a pair of unloading belts 43, 43 for sandwiching and sending out the negative sheet 4 from above and below, and a stepping motor type unloading motor 43A for driving these. . Further, the negative sheet 4 sent out from the discharging portion Hd is sent to the winding device J.
The two feed belts 44, a stepping motor type feed motor 44A for driving the feed belts 44, a pair of take-up rods 45 arranged at an intermediate position between the two feed belts 44, and the take-up rods 45 are rotated. It is provided with a winding motor 45A to be driven and an extruding mechanism (not shown) for extruding the negative sheet 4 wound around the winding rod 45.

The first index sensor MS1 and the second index sensor MS2 are each a light source 4 such as a light emitting diode.
8 and an optical sensor 49 (an example of a light receiving means) formed of a phototransistor that receives the light ray L from the light source 48 that has passed through the negative sheet 4, and the light ray L from the light source 48 is provided.
Is blocked by the index M of the negative sheet 4 and the amount of light received by the optical sensor 49 is reduced, so that the index M is detected. Further, the positional relationship is set so that the pocket portion 4a of the negative sheet 4 is set to the film insertion position of the film insertion mechanism Ha at the position where the first index sensor MS1 detects the index M, and the detection position of the second index sensor MS2 is The negative sheet 4 is set at a position separated from the detection position of the first index sensor MS1 on the conveying lower side by a distance D, and the pocket portion 4a of the negative sheet 4 is conveyed at a position where the second index sensor MS2 detects the index M. The relative positional relationship is set so that the cutting position of the sheet cutter Hc is set at an intermediate position between the two lower welding lines SL, SL.

As shown in FIG. 10, a detection circuit K for processing the signal from the optical sensor 49 is constructed.
Then, the conducting system from the optical sensor 49 to which the power supply voltage is applied is provided with a variable resistor VR for fine adjustment, and the signal from the optical sensor 49 is used as the judging means Q in the comparator 5.
A plurality of resistors R1 and R2 which form a system leading to the input terminal (-) of 0 and are provided in a conduction path branched from the signal system from the optical sensor 49, and a comparator 5 to which a power supply voltage is applied.
Resistor R interposed in the feedback path branched from the 0 output terminal
A system for guiding the voltage divided by 3 to the reference terminal (+) is formed, and a resistor R is connected to the reference terminal (+).
A system for applying a voltage from the capacitor Co via 2 is formed. Then, in this detection circuit K, the negative sheet 4
As a result of using a material having a different amount of transmission of the light ray L, such as a colored material, the light sensor 49 receives light even in a situation where the light quantity of the light ray L received by the light sensor 49 in a region where the index M does not exist is different from the expected one. The index M can be detected based on the light amount of the light ray L received at 49.

The operation of the detection circuit K appears as shown in the timing chart of FIG. This timing chart shows that in the circuit described above, the terminal PS for extracting the voltage signal of the optical sensor 49 and the voltage signal of the input terminal (+) when the index 4 has passed the portion of the optical sensor 49 at a constant speed. PR for taking out the output and OU for output
The respective voltage signals of the system for extracting the voltage signal of T are shown. That is, the voltage of the input terminal (-) is higher than the voltage of the reference terminal (+) in the state where the optical sensor 49 receives the light ray L passing through the negative sheet 4 (the state in which the index M is not detected), and the output is made in this state. The terminal OUT maintains the low potential. Further, when the optical sensor 49 detects the index M, the voltage of the signal system from the optical sensor 49 decreases, and in cooperation with this, the voltage of the input terminal (-) and the reference terminal (+) decreases. , The voltage acting on the reference terminal (+) from the capacitor Co causes the voltage drop at the reference terminal (+) to occur slowly (from the plurality of resistors R1, R2, R3),
The voltage applied to the reference terminal (+) immediately exceeds the voltage of the input terminal (-), and the output terminal OUT switches to a high potential at this timing. Then, after the index M has passed the detection position of the optical sensor 49, the voltage of the input terminal (−) returns to a state higher than the voltage of the reference terminal (+), and the output terminal OUT returns to a low potential. Further, in the figure, there is shown a phenomenon that the voltage of the reference terminal (+) rises when the output terminal OUT is switched to the high potential. This phenomenon is caused by the output terminal O
This is due to the fact that the hysteresis is set by forming a path for positive feedback of the voltage from the UT to the reference terminal (+) via the resistor R3, and thus the voltage of the reference terminal (+) is When the voltage rises, the output terminal OUT maintains a high potential even if the voltage from the optical sensor 49 fluctuates to some extent, which enables stable detection.

As shown in FIG. 12, a control system of the film processing apparatus H is constructed. In this control system, a CCD line sensor 24 and a first index sensor are provided for a controller 51 (an example of control means) equipped with a microprocessor. A system is formed in which signals from the output terminals OUT of the detection circuit K of the MS1 and the detection circuit K of the second index sensor MS2 are input, and the controller 51 drives the roller motor 21A that drives the roller 21 and the film cutter 22. Actuator 22A for driving, transport motor 26A for driving the transport roller 26, cutting motor 3 for driving the sheet cutter Hc
8. An output system is formed for each of the carry-out motors 43A for driving the carry-out belt 43, and the film processing means H is controlled as follows.

As shown in the flow chart of FIG. 13, at the start of this control, the negative sheet 4 as shown in FIG.
It is premised that the boundary portion on the transport lower side of the pocket portion 4a at the transport lower side is at the cutting position, and when the control is started in this state, the transport motor 26A is operated at a preset pulse number. A process of reversely driving the negative sheet 4 in the reverse direction by a set amount (a distance equal to the distance D between the two index sensors MS1 and MS2) is performed (# 101, # 102).
Step). In this state, as shown in FIG. 8B, the pocket portion 4a at the end of the negative sheet 4 on the lower conveyance side reaches the film insertion position of the film insertion mechanism Ha. Next, the process of inserting the negative film 1 into the pocket portion 4a of the negative sheet 4 is performed (# 200 step). This process is set as a subroutine. As shown in the flow chart of FIG. 14, this process starts the insertion of the negative film 1 into the pocket 4a by driving the roller motor 21A as shown in FIG. When this insertion amount reaches the set cutting length, the boundary position between the frames obtained based on the image data from the CCD line sensor 24 is set to the cutting position of the film cutter 22, and the negative film 1 is cut. The insertion is stopped, and the negative film 1 is cut by driving the electric actuator 22A (# 2
01- # 204 steps). In this insertion process, the negative film 1 is cut into 6 or 4 frames and inserted into the negative sheet 4, and the cutting lengths of the leading end and the rear end of the negative film 1 are set in advance. Cut to length.

Next, when it is determined that the negative film 1 was inserted lastly for one order in the film inserting process, the negative sheet 4 is cut (# 3).
(Step 00), the carry-out motor 38 is driven to deliver the cut negative sheet 4 (step # 104). This disconnection process is set as a subroutine, and this process is as shown in the flowchart of FIG.
While driving the carry motor 26A, the second index sensor M
S2 detects the index M twice, the second detection timing,
Specifically, it is detected that the signal from the detection circuit K is switched from the low potential to the high potential twice, and the carry motor 26A is stopped at the second timing. In this stopped state, as shown in FIG. 9B, the cutting position of the sheet cutter Hc is set to the intermediate position between the pair of welding lines SL, SL (position where the index M overlaps), and the cutting motor 38 is driven in this state. Then, the negative sheet 4 is cut (steps # 301 to # 304). Further, at the time of this cutting, the negative sheet 4 sandwiched between the pressing member 39 and the roller 33 is flexibly deformed as shown in FIG. 7A, so that the negative sheet 4 enters the operation locus of the cutter blade 35. The negative sheet 4 can be cut by moving the adjacent cutter blade 35. Further, the negative film 1 in the negative sheet is placed at the cutting position, such as when slip occurs between the transport roller 26 and the negative sheet 4, when the negative sheet 4 overruns, or when the negative sheet 4 falls into an abnormal transport posture. Is present,
As shown in FIG. 7B, the negative film 1 is the negative sheet 4
By preventing the deformation of the negative sheet 4, the negative sheet 4 is restricted from entering the operation locus of the cutter blade 35, and neither the negative sheet 4 nor the negative film 1 is cut.

After this processing, the presence or absence of the next order is discriminated, and when there is an order (when the negative film 1 is subsequently supplied) and when the negative film 1 for one order is processed in the step # 103. When it is determined that the insertion of the negative film has not been completed, the negative sheet conveying process (step # 400) is performed, and then the process of inserting the negative film 1 into the pocket portion 4a of the negative sheet 4 is continuously performed. If the next order does not exist (the process is continued from step # 200), this state is maintained and the negative film 1 is supplied, and if the negative film 1 is supplied, #
The process is restarted from step 101, and when reset, the control is ended (steps # 105 and # 106). Further, the negative sheet conveying process (step # 400) is set in the form of a subroutine, and this process is shown in FIG.
As shown in the flowchart of FIG. 6, while the negative sheet 4 is conveyed by the driving of the conveying motor 26 (the negative sheet 4 is fed back only immediately after the negative sheet 4 is cut), the timing at which the first index sensor MS1 detects the index M, Specifically, the conveyance of the negative sheet 4 is stopped at the timing when it is detected that the signal from the detection circuit K is switched from the low potential to the high potential (steps # 401 to # 403).

As described above, according to the present invention, the threshold value for detecting the index M is set on the basis of the amount of light rays transmitted through the film sheet 4. Therefore, when the film sheet 4 is colored or the light emitting diode 48 is used. When the amount of light is reduced, the threshold value is automatically shifted to the side where the amount of light is small. This shift makes it difficult to cause erroneous detection, but it is ensured that it is blocked by the index M. Will be detected. As a result of accurately determining the transport position of the film sheet in this way, it is possible to insert the negative film 1 into the film sheet 4 and cut the film sheet 4. In particular, the comparator 50
And a resistor R1, R2, R3 and a capacitor Co are combined in a simple electric circuit to automatically shift the threshold value to enable reliable detection of the index M, and to set a hysteresis at the time of detection. The chattering of the detected value is easily eliminated.

In particular, in the present invention, the negative sheet 4 is cut at a position separated from the film insertion position, so that it is possible to perform a comfortable cutting operation in a state where the sheet materials constituting the negative sheet 4 overlap each other. In addition, the sheet can be cut satisfactorily and satisfactorily in a state where the cut surfaces of the sheet materials are aligned with each other, and after the insertion of the ordered negative film 1 is completed, a reorder is generated and the negative film 1 is attached to the negative sheet 4. Even if the negative sheet 4 is inserted again, the negative sheet 4 is automatically fed in the reverse direction so that the negative film 1 cannot be inserted into the end portion of the negative sheet 4 and the waste of the negative sheet 4 is eliminated. In particular, when the negative sheet 4 is cut, the negative blade 4 is cut by sliding the cutter blade 35, so that the cut surface of this cutting is formed into a smooth straight line like a cut surface.

[Other Embodiments] The present invention can be applied to, in addition to the above-mentioned embodiment, a negative sheet 4 having a band-shaped index M formed therein as shown in FIG. 17, for example. 4, the index M is formed by printing or the like on the negative sheet 4 so that the edge portion of the index M on the lower conveyance side is located in the middle of the pockets, so that the control can be performed without changing the control mode.

Further, in addition to the above-described embodiment, the present invention replaces the detection circuit K of the signal system from the index sensor MS1 (MS2) of the control system of the above embodiment with A / A as shown in FIG. By forming a system for inputting to the controller 51 via the D converter 53 and executing the threshold setting routine shown in the flowchart of FIG. 19 before performing the control for detecting the index M of the negative sheet 4 by the device. It is also possible to set the threshold value based on the amount of light rays that pass through the negative sheet 4. Further, in this flowchart, the negative sheet 4 is conveyed, and at the same time, the negative sheet 4 is conveyed.
The amount of light rays that pass through the A / D
Sampling that is digitized via the converter 53 and input to the controller 51 at regular intervals,
It is carried out until the negative sheet 4 is conveyed by a preset distance, and when the sampling is completed, the conveyance of the negative sheet 4 is stopped, and the process of averaging the data excluding the maximum value and the minimum value from the sampling data is performed. This averaged data is multiplied by a preset coefficient to set a threshold value (the setting value may be adjusted), and after this setting, the negative sheet 4 is sent back to the original position to perform the work. The state is set so that it can be started (steps # 501 to # 506).

After this processing, when the index M is detected, as shown in the flowchart of FIG. 20, the digitized detection value from the optical sensor 49 is compared with the threshold value set as described above. If the detected value exceeds the threshold value, the flag is determined (the initial value of the flag is “0”),
If it is "0", the flag is set to "1" and
After increasing the threshold value for hysteresis setting, detection processing such as forced interruption for stopping the conveyance of the negative sheet 4 is performed (steps # 601 to # 606), and even if the detected value exceeds the threshold, the flag is set. If is already set to "1", the detection process has already been performed, so the process is not performed. Further, when the detection value does not exceed the threshold value (when it is below) by comparing the detection signal with the threshold value, if the flag is "1", the detection state is switched to the non-detection state. , The threshold is returned to the original value and the flag is set to "0"(# 60).
7- # 609 step).

That is, in this another embodiment, the discriminating means Q is formed by the controller 51 and software for performing the above-mentioned processing.
Since the detection signal of the optical sensor 49 is digitized and processed by software, it is not necessary to use a comparator, and at the time of processing, the amount of light rays that have passed through the negative sheet 4 is sampled. Since the threshold value corresponding to the negative sheet 4 can be automatically set, the index M can be detected by digital processing based on the appropriate threshold value even when the negative sheet 4 is colored or the light amount of the light source 48 is reduced. And the index M
At the time of detection, it is possible to suppress the occurrence of chattering by simply setting the hysteresis simply by shifting the threshold value.

The present invention can also be applied to a device for inserting a positive film into a film sheet.

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram of a photographic processing apparatus.

FIG. 2 is a schematic perspective view of a photographic processing apparatus.

FIG. 3 is a plan view of a film insertion mechanism and a negative sheet conveyance unit.

FIG. 4 is a sectional view of a negative sheet conveying system, a film inserting mechanism, and the like.

FIG. 5 is a schematic view of a sheet cutter.

FIG. 6 is a front view and a sectional view showing a support structure of a cutter blade of a sheet cutter.

FIG. 7 is a cross-sectional view showing a cutting state and a non-cutting state with a cutter blade.

FIG. 8 is a plan view showing the position of the negative sheet at the start of control and when the film is inserted.

FIG. 9 is a plan view showing the position of the negative sheet during continuous film insertion and during film cutting.

FIG. 10 is an electric circuit diagram showing a detection circuit.

FIG. 11 is a timing chart showing changes in the voltage signal of the detection circuit.

FIG. 12 is a block circuit diagram of a control system.

FIG. 13 is a flowchart of control operation

FIG. 14 is a flowchart of a film insertion processing routine.

FIG. 15 is a flowchart of a disconnection processing routine.

FIG. 16 is a flowchart of a negative sheet conveyance processing routine.

FIG. 17 is a plan view showing a negative sheet of another embodiment.

FIG. 18 is an electric circuit diagram for detecting an index according to another embodiment.

FIG. 19 is a flowchart of a threshold setting routine according to another embodiment.

FIG. 20 is a flowchart of a detection routine according to another embodiment.

FIG. 21: Conventional electric circuit for index detection

[Explanation of symbols]

1 photographic film 4 film sheet 4a Pocket part 48 light sources 49 Light receiving means 50 comparator 53 converter Co battery Ha film insertion mechanism Hb cutting mechanism M index MS index sensor Q discrimination means

─────────────────────────────────────────────────── ─── Continuation of front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) G03D 15/10

Claims (5)

(57) [Claims] 1. The conveyance of a film sheet (4) is stopped based on an index sensor (MS) detecting an index (M) formed on a film sheet (4) supplied from a film sheet supply section, In this stopped state, the film inserting mechanism (Ha) is operated to insert the photographic film (1) into the pocket portion (4a) of the film sheet (4), or the cutting mechanism (Hb) is operated to operate the film sheet (4). ) Is cut and separated, and a light source (48) which sends out a light beam which the index sensor (MS) transmits to the film sheet (4) and a light receiving means (49) which receives the light beam transmitted through the film sheet (4). ) And a discriminating means (Q) for discriminating the detection / non-detection of the index (M) based on the electric signal from the light receiving means (49). It is a processing device, and the space (D) is separated in the transport direction of the film sheet (4).
A pair of the index sensor (MS) is arranged at the vertical position,
One of the pair of index sensors (MS) is the index
In the state of detecting (M), the film sheet (4)
The film insertion mechanism (H
a) is in a position where the photographic film (1) can be inserted,
The other of the pair of index sensors (MS) is the index
In the state of detecting (M), the film sheet
The middle position between the pockets (4a) of (4) is cut as described above.
The mechanism (Hb) is placed at a position where it can be cut so that the pair of
Index sensor (MS) and the film insertion mechanism (Ha)
And the relative positional relationship between the cutting mechanism (Hb) and
This is a film sheet processing device. 2. A film by the film insertion mechanism (Ha).
Based on the film insertion position, the film sheet
The film sheet (4) is provided on the upstream side in the transport direction of (4).
Enlargement guide (2) that enlarges the opening of the pocket (4a) of
7) is arranged and the film insertion mechanism (Ha) is used.
Based on the film insertion position, the film sheet
The cutting mechanism (Hb) is arranged on the downstream side in the transport direction of (4).
The film sheet processing apparatus according to claim 1, wherein the apparatus is disposed . 3. Rays from said light source (48) are said indicators
Of the light beam which is blocked by (M) and is received by the light receiving means (49).
The threshold value that serves as a reference when the amount decreases is this light receiving means (4
9) penetrates the film sheet (4) in the area other than the index and
Set to a value corresponding to the amount of rays
And the threshold for switching from this detection state to the non-detection state
In order to set the hysteresis that has a difference in
The apparatus for processing a film sheet according to claim 1, wherein another means (Q) is configured . 4. The converter (5), wherein the light receiving means (49) is composed of an optical sensor which outputs a voltage signal according to the amount of received light, and which digitizes the voltage signal from the optical sensor.
3), which sets a digitized signal corresponding to a light ray passing through the film sheet (4) to a threshold value, and compares the threshold value with a signal from the digitized photosensor to obtain an index (M). 3. The film sheet processing apparatus according to claim 1, wherein the discriminating means (Q) is provided with software for discriminating between detection and non-detection. 5. The processing mode of the software is set so as to set a hysteresis by making a difference between a threshold value at the time of detecting an index and a threshold value for switching from the detection state to the non-detection state. Item 4. The film sheet processing apparatus according to item 4.