JPH0934022A - Film feeding device and method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the processing capacity by quickly and surely loading a roll of film. SOLUTION: A supplying reel is reversely rotated to pull out a roll of negative film 12 by gravity. When the top end part of the negative film 12 is inserted into the optical axis of a sensor 104, an arm 82 is moved and a holding roller 84 is moved together with the arm 82. The holding roller 84 comes into contact with the negative film 12, in the midst of a movement, to be moved together with the film 12 and a guide 90 is moved to shield detecting light by a light shielding surface 94 and holds the film 12 together with a driving roller 86 at a holding position ((A) and (B)). The supplying reel is reversely rotated to rewind the film 12 on the supplying reel. When the top end part of the film 12 passes through between the holding roller 84 and the guide 90, the shielding of the detecting light by the light shielding surface 94 is released and the supplying reel is rotated forward ((C) and (D)), so that the top end part of the film 12 is brought into contact with the light shielding surface 94 and then, fed to a supplying path 88.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a film feeding device and a film feeding method, and more particularly to a film feeding device and a film feeding method for applying a long rolled photographic film.

[0002]

2. Description of the Related Art Conventionally, an image reading device (scanner) reads an image on a photographic film, obtains exposure correction data with a video color analyzer, and records it on an LSI card or the like. In order to do this rapidly and in large quantities, several negative films are spliced together into a roll. The rolled negative film is processed by passing its leading end (leader part) along the transport path to put it in a standby state. The rolled negative film is then provided to the subsequent step as it is rolled, subjected to a series of treatments, and finally cut by a cutter to be returned to one negative film.

To set (load) the rolled negative film on the scanner, the operator passes the leading end of the film loaded on the delivery side reel through the transport path,
It is wound around the core of the take-up reel.

In some cases, the feed path is provided at the leading end of the feed path in order to further facilitate the feeding to the feed path. In this case, the operator also inserts the leading end of the film into the insertion opening of the feed path. There is a need.

As described above, in loading, since the leading end of the negative film is manually operated, human intervention is involved in a series of processing steps, operability is poor, and full-automatic operation cannot be performed.

[0006]

SUMMARY OF THE INVENTION The present invention has been made in view of the above facts, and a film supply device and a film supply device capable of quickly and reliably loading a roll-shaped film and improving the processing capacity. The purpose is to provide a method.

[0007]

According to a first aspect of the present invention, there is provided a film supply device in which a leading end of a roll-shaped film wound around a delivery reel is guided by a loading guide.
A film supply device for sending out to a predetermined transport path,
A fixed roller, which is on the delivery side reel side of the loading guide and is arranged on one side of the film when the film is pulled out, and a fixed roller which is arranged on the other side of the film. A pair of rollers, each of which has a moving roller selectively disposed at two positions, a film holding position and a film non-holding position, for holding the film so as to face each other; A moving means for moving the roller pair, a conveying means for driving the roller pair to convey the sandwiched film in the feeding and winding directions, and a film detecting means for optically detecting the presence or absence of a film between the roller pair. When the film blocks the detection optical path of the film detecting means, the moving means is controlled to dispose the moving roller to the holding position, and First control means for controlling the conveying means to rewind the film, and a state in which the film is clamped by the roller pair, which is arranged closer to the loading guide than the film clamping position by the roller pair. The optical path blocking member arranged on the optical path of the film detecting means and the optical path blocking by the optical path blocking member are released until the leading end of the film is rewound to the side of the film holding position with respect to the loading guide. Second control means for controlling the transport means to transport the film to the predetermined transport path at a time point.

Thus, when the film interrupts the detection optical path of the film detecting means, the presence of the film is detected by the film detecting means, and the first control means moves the moving roller through the moving means from the non-holding position to the holding position. The film is pinched by the fixed roller and the moving roller, and the film is rewound by the conveying means. As a result, the roll-shaped film wound around the delivery-side reel can be automatically nipped by the roller pair.

Further, when the leading end of the film is rewound to the film holding position side of the loading guide while being held by the pair of rollers, the light path blocking by the light path blocking member is released, and the second The control means conveys the film to the conveying path. Thus, the leading end of the film sandwiched between the roller pair can be automatically guided to the transport path.

Therefore, the process from loading the roll-shaped film on the delivery-side reel to guiding the leading end of the film to the loading guide to transport the film on a predetermined transport path can be performed without human intervention. Also, including this process, the process from loading the reel on the sending side to starting the process after loading can be fully automated, and the roll-shaped film can be loaded quickly and reliably, improving the processing capacity. can do.

According to a second aspect of the present invention, in the film supply apparatus according to the first aspect, the optical path blocking member functions as a guide member for guiding the film to the entrance of the loading guide when the optical path blocking is released. Is characterized by.

Thus, the optical path blocking member also serves as a guide member for guiding the film to the entrance of the loading guide, so that the apparatus can be simplified.

According to a third aspect of the present invention, there is provided a film supply method in which a leading end of a roll-shaped film wound around a delivery side reel is guided by a loading guide and is delivered to a predetermined transport path. The film is loaded on a reel, the leading end of the film is pulled out by the rotation of the delivery side reel, the pulled-out portion of the film is sensed, and a moving roller having a predetermined moving path is moved to move the drawn-out portion of the film. Is clamped by a fixed roller provided on the moving path in contact with the moving roller in the middle of moving and the moving roller, the film is rewound and the leading end is sensed, and the transport direction of the film is set to the feeding direction. And the leading end is guided to the loading guide.

Accordingly, the roll-shaped film loaded on the reel on the delivery side can be guided to the loading guide by using the rotation and the reversal of the rotation of the reel without the intervention of a person. Therefore, the process from the loading of the delivery side reel to the loading to the start of processing can be fully automated, and the roll-shaped film can be loaded quickly and reliably, and the processing capacity can be improved.

According to a fourth aspect of the present invention, in the third aspect, the leading end of the film is pulled out by the weight of the film.

Since the film is pulled out by the weight of the film, the film can be easily fed to the loading guide by rotating the reel on the delivery side in the reverse direction when the reel is pulled out downward.

[0017]

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

1 and 2 show a scanner 10 to which the present invention can be applied. Here, FIG. 1 shows a scanner 10
FIG. 2 is a schematic overall view centering on the transport section 42 of FIG.

As shown in FIG. 2, the scanner 10 includes a light source section 20 dedicated to photometry and a sensor section 30 for reading and analyzing image information of an image recorded on the negative film 12.
And a transport unit 42 for transporting the negative film 12. The negative film 12 wound in layers along the axis 44A is loaded on the supply reel 44 provided on the left side of FIG. 2 (upper left side in FIG. 1). The negative film 12 conveys the conveying section 42, passes through a negative carrier 48 provided in the middle of the conveying section 42, and is layered on the shaft 46A of the take-up reel 46 provided on the right side of FIG. 2 (the upper right side in FIG. 1). It is designed to be wound up.

Negative film 1 applicable to the scanner 10
As shown in FIG. 3, the reference numeral 2 is provided with a large number of image frames 12A in which images are recorded at predetermined intervals along the longitudinal direction. The negative film 12 has a perforation 14 formed at a predetermined end in the width direction so as to match the position of each image frame 12A.
It is possible to discriminate between the front and back of No. 2 and the position of the image frame 12A.

A magnetic track 16 for recording magnetic information is provided at a position adjacent to the image frame 12A between the perforations 14.

The magnetic track 16 is formed on the back surface of the negative film 12 which is the outer side in a wound state, and is used for photographing information of an image recorded in each image frame 12A and for printing processing. Various information such as print size and exposure conditions is recorded. The magnetic track 16 provided at the end opposite to the perforation 14 has information recorded at the time of photographing mainly by a photographing device such as a camera. Further, the negative film 12 has a D at the end opposite to the side where the perforations 16 are formed.
A bar code 18 indicating an X code is recorded so that the negative film 12 can be specified.

The light source section 20 dedicated to photometry provided in the scanner 10 is provided with a light source 22 composed of a halogen lamp and a reflector. In the optical path L of the light beam emitted from the light source 22, C (cyan), M (magenta),
A filter unit 2 including a cut filter for each color of Y (yellow) and an ND filter used for adjusting the amount of light
4 are provided. Each filter of the filter unit 24 is
It is inserted into or removed from the optical path L according to a signal from the driver 26.

In the optical path L below the filter section 24 in FIG.
A negative carrier 48, which will be described later, is arranged with the light diffusing cylinder 28 in between. The negative carrier 48 positions the long negative film 12 at a predetermined position, and at the same time, the negative roller 48 carries the conveying roller 5
It is designed to be sandwiched by two and the pressing roller 54 which opposes this. Further, the transport roller 52 is configured to perform intermittent transport during forward transport from the supply reel 44 to the take-up reel 46, and perform constant speed transport during return transport from the take-up reel 46 to the supply reel 44.

An exposure calculation sensor 32 is disposed on the optical path L below the negative carrier 48 in FIG. The exposure calculation sensor 32 is composed of a CCD element composed of pixels arranged in a 256 × 256 matrix. The exposure calculation sensor 32 is connected to the exposure calculation section 33, and data of an image captured by this CCD element is calculated. The calculated exposure value is used as the exposure calculation unit 3
The information is input to the information control unit 74 connected to No. 3. Further, the exposure calculation sensor 32 has a filter (not shown) on the light source 22 side, which is matched to the characteristics of the negative film 12 and the printing paper.

The negative carrier 48 and the exposure calculation sensor 32
A lens 34 and a half mirror 36 are arranged between and. The lens 34 is movable along the optical path L, so that the enlargement magnification can be changed.

The half mirror 36 is adapted to pass and reflect the transmission image of the negative film 12. The reflected transmission image reaches the video sensor 38. The video sensor 38 is composed of a CCD sensor of 640 × 480 pixels, and the negative film 1
The image above 2 is picked up. Further, the video sensor 38 is connected to the monitor 40 via the image processing unit 39, and the image picked up by this CCD element can be corrected by the correction value input from the monitor 40. Further, the image processing unit 39 is connected to the information processing unit 74, and the corrected image information is input to the information processing unit 74.

Next, the negative carrier 48 will be described with reference to FIG. The light source unit 20 is provided at the center of the negative carrier 48.
The opening 50 is provided at a position where the optical axis L of (see FIG. 2) passes, and the image frame 1 of the negative film 12 positioned in the opening 50 when the optical axis L passes through the negative carrier 48.
The sensor unit 30 (see FIG. 2) can be transmitted through 2A. Further, the negative carrier 48 is provided with a conveying path 56, and the image frame 12A of the negative film 12 is provided.
Can be sequentially guided to the opening 50. Further, the width dimension of the transport path 56 is substantially the same as the width dimension of the negative film 12, so that the shift in the width direction during the transport of the negative film 12 is prevented.

A pair of reading heads 58 are provided at both ends in the width direction on the transport path 56 on the upstream side of the opening 50 of the negative carrier 48 in the transport direction of the negative film 12. The reading head 58 moves the negative film 1 onto the transport path 56.
Magnetic tracks 16 provided on both sides in the width direction of the negative film 12 when the two are arranged and transported (see FIG. 3).
And magnetic information recorded on the magnetic track 16 is read. One of the read heads 58 reads the printing information recorded on one magnetic track 16 of the image frame 12A to be read at the time of reordering, and the other read camera 58 is a camera recorded on the other magnetic track 16 of the image frame 12A. It is designed to read information.

The reading head 58 is arranged between two adjacent image frames 12A when the image frame 12A is positioned in the photometric opening 50. As a result, the negative film 12 is supplied to the supply reel 4 for photometry of the image frame 12A.
In the case of intermittent transport from 4 to the take-up reel 46 (forward transport), the magnetic information for one image frame can be read by transporting one image frame after the photometry is completed.

A recording head 60 is arranged substantially in the center of the conveying path 56 of the negative carrier 48. The recording head 60 is
The recording head 60 is provided at one end of the transport path 56 and is connected to the information processing section 74 (see FIG. 2). The recording head 60 uses the magnetic track 16 of the negative film 12 when the negative film 12 is conveyed at a constant speed during the backward conveyance.
The exposure correction data obtained by photometry is recorded in sliding contact with. As a result, the exposure correction data obtained by photometry on the outward path is recorded by the recording head 60, and the recorded data can be read and reused by the reading head 58 provided on the same side when reordering. It has become.

In the negative carrier 48, the read head 5
8 is a transport path 56 further upstream in the negative film transport direction.
An optical sensor unit 64 including a plurality of sensors 62 is provided on the top. Thereby, the negative film 1
The splice portion of 2 is detected to identify one negative film, the perforation 14 formed on the negative film 12 is detected to identify the image frame 12A, and each image frame 12A is accurately guided to the opening 50. It is supposed to be placed. Further, the sensor 62 is the negative film 12
The upper bar code 18 can be detected to identify the negative film 12, and the image density of the recorded image frame 12A can be measured to detect the size of the image frame 12A and the first image frame 12A and the final image frame 12A. You can do it. Further, the other sensor 62 can detect a blank frame by judging whether or not an image is recorded on the image frame 12A.

A transport roller 52 is disposed on a transport path 56 downstream of the opening 50 in the transport direction of the negative film 12, and the negative film 12 is sandwiched together with a pressing roller 54 which faces the transport roller 52. It is designed to be transported by. The transport roller 52 is connected to the information processing unit 74 via a transport control unit (not shown) and intermittently transports the negative film 12 so that the image frame 12A can be positioned in the opening 50 during forward transport, and during reverse transport. The negative film 12 for one roll is conveyed at a constant speed.

As a result, when the negative film 12 is supplied to the negative carrier 48, the negative film 1
2 is intermittently conveyed by the conveying roller 52 and the image frame 12A
Is positioned in the opening 50, and the image of the positioned image frame is metered by the light beam from the light source unit 20.
Further, during intermittent conveyance, various optical information is read by the optical sensor section 64 and magnetic information is read by the read head 58 for the other image frame 12A. On the other hand, at the time of the return trip, 1 collected on the take-up reel 46
The wound negative film 12 is transported at a constant speed on the transport path 56,
The magnetic track 16 is brought into sliding contact with the recording head 60 at a constant speed.
The information obtained by photometry is recorded.

The transport section 42 for transporting the negative film 12 has a plurality of fixed rollers 66 and a plurality of reservoir rollers 68.
A and 68B are provided (note that some of the fixed rollers 66 are omitted in FIG. 2 and the position of each roller is also schematically shown).

The reservoir rollers 68A and 68B are arranged between the two fixed rollers 66 (see FIG. 1) and are connected to a loading control unit (not shown), and a predetermined moving path is provided in accordance with an instruction from the loading control unit. According to the position.

The reservoir roller 68A is a supply reel 44.
It is arranged between the negative carrier 48 and the negative carrier 48, and moves the moving path from one side to the other side to push out the negative film 12 to form the reservoir 70 and control the brake of the supply reel 44. Further, the size of the reservoir 70 is changed by moving the moving path depending on the amount of the negative film 12 delivered from the supply reel 44 and the amount of conveyance by the negative carrier 48 so that the negative film 12 is not subjected to excessive tension. .

On the other hand, the reservoir roller 68B is arranged between the negative carrier 48 and the take-up reel 46, moves from one side to the other in a predetermined moving path, and pushes out the negative film 12 to form the reservoir 72, which is wound up. Whether or not the take-up reel 46 can be operated is determined. Also negative carrier 48
The moving path is moved depending on the amount of the negative film 12 delivered from the film and the amount of the negative film 12 wound on the take-up reel 48.
The size of the reservoir 72 is changed so that the negative film 12 is not excessively tensioned.

All of these reservoir rollers 68 are arranged at the initial position of a predetermined moving path retracted from the conveying section 42 for conveying the negative film 12 at the time of automatic loading. Here, the auto-loading is from the time when the negative film 12 is loaded on the supply reel 44 and is supplied to the supply path 88 described later until the first image frame 12A of the first negative film 12 in the negative carrier 48 is brought into the photometric state. It refers to a predetermined constant speed conveyance.

Between the reservoir 70 and the supply reel 44, a holding section 80 (see FIG. 1) for supplying the negative film 12 loaded on the supply reel 44 to the transport section 42.
Are arranged.

The holding unit 8 will be described with reference to FIGS.
0 will be described. As shown in FIG. 5, the hold unit 80 includes an arm 82 that can rotate about the shaft 44A of the supply reel 44, and a hold roller 84 is arranged at the tip of the arm 82. As a result, the hold roller 84 moves along a predetermined movement path as the arm 82 moves.

As shown in FIG. 6, the hold roller 8
Reference numeral 4 includes a shaft 84A and a pair of rollers 84B, and the width dimension (dimension W in FIG. 6) of the hold roller 84 is substantially the same as the width dimension of the negative film 12.

A drive roller 86 is provided in the vicinity of the supply reel 44 and on the extension of the movement path of the hold roller 84. When the hold roller 84 moves along the movement path, it comes into contact with the drive roller 86. Is held (sandwich position). A drive control unit 110 is connected to the drive roller 86, and the amount and direction of conveyance of the drive roller 86 are controlled. As a result, the supply reel 44
The negative film 12 pulled out from the hold roller 8
The negative film 12 is sandwiched between the No. 4 and the driving roller 86, and the negative film 12 is transported in the winding direction (reverse transport) or the delivery direction (normal transport) around the supply reel 44.

In the vicinity of the position where the drive roller 86 and the hold roller 84 are nipped, the negative film 12 is conveyed by the conveying section 42.
An inlet of a supply path 88 to be supplied to (see FIG. 1) is arranged, and the negative film 12 sandwiched by the drive roller 86 and the hold roller 84 is supplied to the supply path 88 and guided to the transport unit 42. It is like this.

A guide 90 for supplying the leading end of the negative film 12 to the supply path 88 is disposed between the hold roller 84 and the supply path 88.

As shown in FIG. 6, the guide 90 has a light shielding surface 94 having a width dimension smaller than the length dimension of the shaft 84A of the hold roller 84. The light-shielding surface 94 is sandwiched by a pair of side plates 92 extending to both ends of the light-shielding surface 94, whereby the guide 90 maintains a rectangular shape.

Side 92 of side plate 92 on the side of hold roller 84
A forms an arc, and the hold roller 84 can move on the side 92A of the guide 90 without applying an excessive load when the hold roller 84 abuts. Further, a through hole 96 is provided at one end of the side plate 92 on the lower side in FIG.
And the shaft 98 together with the through holes 102 of the bracket 100 arranged on both sides of the guide 90.
The guide 90 is inserted into the bracket 10
The guide 90 is fixed at 0, and the guide 90 is rotated around the through hole 96. Guide 90 to bracket 10
The shaft 98 pivotally supported at 0 is fixed by an E ring 97 so as not to move in the insertion direction.

The light-shielding surface 94 of the guide 90 is inserted into and removed from the optical axis M of the detection light from the sensor 104 (see FIG. 5) for detecting the tip of the negative film 12,
The detection light is blocked or unblocked.

The guide 90 is designed to maintain a state in which the light shielding surface 94 is separated from the optical axis M of the sensor 104 by the urging force of a spring (not shown). The light-shielding surface 94 in the detached state has a predetermined angle and the supply path 88 arranged in the lower part of FIG.
And the distance to the entrance to maintain the disengaged state.
As a result, the leading end of the negative film 12 delivered from the supply reel 44 is guided to the entrance of the supply path 88 when it comes into contact with the light shielding surface 94 in the detached state.

In the guide 90, when the arm 82 moves, the hold roller 84 causes the side 9 of the guide 90 to move.
When moved along 2A, the holding position is moved around the through hole 96 of the guide 90. As a result, the light blocking surface 94 of the guide 90 is inserted on the optical axis M of the sensor 104 to block the detection light.

The light detected by the sensor 104 is detected by the light receiver 106 arranged on the optical axis M. A hold control unit 108 is connected to the light receiver 106, and the hold control unit 108 is connected to a drive unit of the supply reel 44, a drive unit of the arm 82, and a drive control unit 110 that drives the drive roller 86 (not shown). Has been done. As a result, the hold controller 108 recognizes that the detection light from the sensor 104 is blocked or released, thereby controlling the drive of the supply reel 44, the movement of the arm 82, and the drive of the drive roller 86. ing.

Next, the supply mechanism of the negative film 12 will be described with reference to FIGS. The hold of the leading end portion of the negative film 12 is controlled by the hold control unit 108 by sensing the blocking of the detection light from the sensor 104.

That is, as shown in FIG. 5, when the roll-shaped negative film 12 is loaded on the supply reel 44 and the supply reel 44 rotates in the direction of arrow R (reverse direction) in FIG.
The negative film 12 (the negative film 12 at the position A in FIG. 5) is pulled out by its own weight, and the leading end of the negative film 12 is inserted on the optical axis M of the sensor 104 to shield the light (FIG. Negative film in position B in 5) 12).

When the light detected by the sensor 104 is blocked, the hold controller 108 recognizes this through the light receiver 106 and moves the arm 82 to bring the hold roller 84 and the negative film 12 into contact with each other. ing.

The hold roller 8 is moved by the movement of the arm 82.
The negative film 12 that has contacted with the
Drive roller 86 together with hold roller 84
And comes in contact with the guide 90 in the middle of the movement path to move the guide 90, and then is sandwiched by the drive roller 86 and the hold roller 84 (FIG. 5).
Negative film at position C in 12).

As shown in FIG. 7A, the guide 90
The width dimension of the light shielding surface 94 is smaller than the dimension between the rollers 84B of the hold roller 84. Here, the negative film 12 is provided between the guide 90 and the hold roller 84.
Roller 84B by the negative film 12 when
It has become restricted to get in between. As a result, when the hold roller 84 comes into contact with the guide 90 while being in contact with the negative film 12, the guide 90 makes a sliding contact with the hold roller 84 and the negative film 12, so that the guide 90 rotates around the through hole 96 and the sensor 1
The detection light 04 is blocked by the light blocking surface 94 (see FIG. 7B).

On the other hand, as shown in FIG. 7C, when the negative film 12 is rewound (in the direction of arrow R in FIG. 7B) and the leading end passes through the guide 90, the negative film 12 intervenes. As a result, the guide 90, which is restricted to the outside of the hold roller 84, enters the inner peripheral side of the hold roller 84 by the urging force of a spring (not shown). As a result, the sensor 1 that was shielded from light
The blocking of the detection light of 04 is released, and the detection light reaches the light receiver 106 (see FIG. 7D).

As shown in FIG. 5, the hold controller 1
Reference numeral 08 is connected to the light receiver 106, the drive control unit 110, and a movement control unit (not shown). When the light detected by the sensor 104 is blocked by the negative film 12, the hold control unit 108 recognizes this and moves the arm 82 via a movement control unit (not shown) to hold the hold roller 8.
4 is brought closer to the drive roller 86.

After the light-shielding surface 94 of the guide 90 blocks the detection light by the movement of the hold roller 84, the leading end of the negative film 12 guides the guide 90 by driving the supply reel 44 and the drive roller 86 in the rewinding direction. When the guide 90 passes and the guide 90 moves and the interruption of the detection light is released, this is recognized and the drive direction of the drive roller 86 is reversed to drive in the delivery direction.

Therefore, the roll-shaped negative film 12 loaded on the supply reel 44 is pulled out by its own weight when the supply reel 44 rotates in the reverse direction (rotation in the rewinding direction), and the hold controller 108 senses this. The hold roller 84 moves based on the instruction, and the drive roller 8
6 holds the negative film 12 together. The hold roller 84 contacts the guide 90 by sandwiching the negative film 12 in the middle of the movement and contacts the guide 90.
Is moved so that the light shielding surface 94 is inserted on the optical axis M of the sensor 104.

The negative film 12 is rewound onto the supply reel 44 by the reverse rotation of the supply reel 44, and the leading end portion of the negative film 12 passes between the hold roller 84 and the guide 90. By the passage of the tip portion, the limitation by the negative film 12 is released, and the guide 90 is moved to the vicinity of the shaft 84A by the urging force of the spring, and the light shielding surface 9
4 is separated from the optical axis M. Shading surface 9
The detachment of 4 from the optical axis M is sensed by the hold control unit 108, and the rotation of the supply reel 44 is reversed to normal rotation, and the leading end of the negative film 12 is sent out to the supply path 88. The tip of the supply reel 44 has a shaft 8
By the light blocking surface 94 of the guide 90 that has moved to the vicinity of 4A,
It is adapted to be guided to the supply path 88.

Next, the operation of the present embodiment will be described. A supply reel 44 provided at one end of the scanner 10 is loaded with a long developed negative film 12 having several splicers joined by a splicer, and is fed by a feeding step described later to convey unit 4
2, and the negative film 12 is passed through the transport path by the auto loading mechanism.

When the negative film 12 is passed through the transport path, the reservoir rollers 68A and 68B move to form the reservoirs 70 and 72.

When the auto-loading is completed to enter the standby state, the negative film 12 starts to be conveyed, and when the perforation 14 indicating the position of the image frame 12A is detected by the optical sensor section 64, the conveyance roller 52 intermittently conveys (forward path). ) Is performed, and the reading head 58 reads the magnetic information recorded on the magnetic track 16 corresponding to the image frame 12A.

Image frame 12A from which magnetic information is read
Is positioned in the opening 50 of the negative carrier 48 to perform photometry. Photometry is performed by the image frame 12A from the light source 22.
The transmission image of the above image is input to the exposure calculation section 33 and the image processing section 39 via the exposure calculation sensor 32 and the video sensor 38, respectively. This allows
The exposure correction value is calculated so that proper exposure is performed.

When the photometry for all the image frames 12A for one case is completed, the exposure correction value is determined based on the read magnetic information and the result of the photometry. When the exposure correction values are determined for all the negative films 12 in one roll of negative film 12 for each case, the reversal of the conveying direction is instructed, and the negative film 12 conveys the conveying path 56 of the negative carrier 48.
The upper head is conveyed at a constant speed (return path), and the recording head 60 outputs the exposure correction value corresponding to each image frame 12A to the magnetic head 16.
Recorded in.

Next, the supply process will be described with reference to FIG. In step 200, the roll-shaped negative film 1
When 2 is loaded on the supply reel 44, in step 202, the rotation of the supply reel 44 in the reverse rotation direction (winding direction) is started.

When the supply reel 44 rotates in the reverse direction, it is determined in step 204 whether the detection light of the sensor 104 is blocked. The negative film 12 is pulled out by its own weight by the reverse rotation of the supply reel 44.
If the detection light of is blocked, the determination is affirmative and Step 20
6, the reverse rotation of the supply reel 44 is stopped.

When the rotation of the supply reel 44 is stopped, the arm 82 starts moving along a predetermined moving path in step 208. When the arm 82 moves, the arm 8
The hold roller 84 provided at the front end of the second contact member contacts the negative film 12 during the movement and moves along the moving path together with the negative film 12, and moves the position of the guide 90 so that the light shielding surface 94 of the guide 90 detects the detection light. Is inserted on the optical axis M of.

When the arm 82 starts to move, it is determined in step 210 whether or not the arm 82 has moved along a predetermined movement path and completed the movement. The hold roller 84 placed at the tip of the arm 82 after the arm has completed the predetermined movement.
The judgment is denied until the negative film 12 is clamped together with the driving roller 86 at the clamping position.

An affirmative judgment is made that the hold roller 84 is arranged at the nipping position and nipping the negative film 12 together with the drive roller 86, and in step 212, the rotation of the supply reel 44 is instructed to supply the negative film 12 with the supply reel 44. The winding on the tape is started.

When the winding of the negative film 12 is started, the sensor 1 which has been shielded from light in step 214.
It is determined whether or not the blocking of the detection light 04 is released.
When the leading end portion of the negative film 12 pulled out by winding the negative film 12 is pulled back to the supply reel 44,
When the tip passes the guide 90, the guide 90 moves to move the light shielding surface 94 away from the optical axis of the detection light, and the determination is denied until the light shielding of the detection light is released.

When the guide 90 moves and the light shielding surface 94 is separated from the optical axis of the detection light and the light shielding of the detection light is released, in step 216, the rotation direction of the supply reel 44 is reversed and the negative film 12 is rotated. Sending out to the supply path 88 is started, and a series of supply steps is ended.

As a result, when the feeding of the negative film 12 is started, the leading end of the negative film 12 comes into contact with the light-shielding surface 94 of the guide 90 and is supplied to the supply path 88, and the negative film 12 is guided to the conveying section 42. To be done. Transport unit 42
The negative film 12 guided to is then placed in a standby state by autoloading, and then subjected to predetermined photometric processing.

Therefore, after the roll-shaped negative film 12 is loaded on the supply reel 44, the negative film 1 is automatically fed.
The leading end of the second portion is surely supplied to the supply path 88,
Can be carried, and the photometric processing thereafter can be carried out, so that the operability can be improved and the processing capacity can be improved.

In the case of a negative roll that needs to be rewound, the negative film 12 can be loaded into the scanner 10 in a fully automatic manner.

In the present embodiment, the leading edge of the negative film 12 is detected by releasing the blocking of the detection light, and the leading edge of the negative film 12 is supplied to the feeding path 88 by reversing the conveying direction. Although the process is completed, it is possible to confirm that the negative film 12 is supplied to the supply path 88 by blocking the detection light. Thereby, the negative film 12 can be more reliably transported to the transport unit 42.

Further, in this embodiment, the supply reel 44
Although the end portion is pulled out by rotating the negative film by the negative weight of the negative film 12 by itself, the negative film 12 may be pulled out by rotating it normally, or may be drawn out by using other drawing means.

In the present embodiment, the film supply device of the present invention is applied to the scanner 10 for reading the image recorded on the developed negative film, but the application to the scanner 10 and the example using the negative film are limited. Not done. Any film can be used as long as it can supply a roll-shaped film to a predetermined member.

[0080]

As described above, according to the present invention, the roll-shaped film can be loaded quickly and reliably, and the processing capacity can be improved.

[Brief description of drawings]

FIG. 1 is a schematic overall view of a scanner according to the present embodiment.

FIG. 2 is a schematic configuration diagram of a scanner according to the present embodiment.

FIG. 3 is a partial plan view of a negative film applicable to the present invention.

4A is a plan view of the periphery of a negative carrier transport path, and FIG. 4B is a cross-sectional view of the negative carrier transport path periphery.

FIG. 5 is a schematic front view of a hold unit according to the present embodiment.

FIG. 6 is an exploded perspective view of a guide and a hold roller according to the present embodiment.

FIG. 7A is a cross-sectional view showing the positions of the hold roller and the guide when the detection light is blocked, FIG. 7B is a side view showing the positions of the hold roller and the guide when the detection light is blocked, and FIG. FIG. 5D is a sectional view showing the positions of the hold roller and the guide in the detection light blocking state, and FIG. 6D is a side view showing the positions of the hold roller and the guide in the detection light blocking release state.

FIG. 8 is a flowchart illustrating a supply mechanism according to this embodiment.

[Explanation of symbols]

 10 Scanner 12 Negative Film (Roll Film) 44 Supply Reel (Sending Side Reel) 46 Take-up Reel 48 Negative Carrier 58 Reading Head 60 Recording Head 80 Hold Part 82 Arm (Movement Means) 84 Hold Roller (Movement Roller) 86 Drive Roller (Fixed roller) 90 Guide (front end detection means) 94 Light-shielding surface (optical path blocking member) 104 Sensor (film detection means) 108 Hold control section (first and second control means) 110 Drive control section (drive means)

Claims (4)

[Claims] 1. A film supply device for guiding a leading end of a roll-shaped film wound around a delivery side reel to a loading guide and feeding it to a predetermined transport path, wherein the delivery side reel of the loading guide. A fixed roller that is disposed on one side of the film when the film is pulled out, and a fixed roller that is disposed on the other side of the film and faces the fixed roller. A roller pair including a moving roller selectively disposed at two positions of a film holding position and a film non-holding position; moving means for moving the moving roller of the roller pair between the two positions; Conveying means for driving the roller pair to convey the sandwiched film in the feeding and winding directions, and optically detecting the presence or absence of the film between the roller pair. And a film detecting means for controlling the moving means to arrange the moving roller to the holding position and to control the conveying means when the film interrupts the detection optical path of the film detecting means. And a first control means for rewinding the film, and the film is disposed closer to the loading guide than the film clamping position by the roller pair, and the film front end portion is used for loading when the film is clamped by the roller pair. Until the film is rewound to the film holding position side from the guide, an optical path blocking member arranged on the optical path of the film detecting means, and a point of time when the optical path blocking by the optical path blocking member is released,
A second control unit that controls the transport unit to transport the film to the predetermined transport path. 2. The film supply device according to claim 1, wherein the optical path blocking member functions as a guide member for guiding the film to the entrance of the loading guide when the optical path blocking is released. 3. A film supply method for feeding a leading end of a roll-shaped film wound around a delivery side reel to a predetermined conveying path by guiding the leading end of the roll-shaped film, and loading the film on the delivery side reel, The leading end of the film is pulled out by the rotation of the delivery side reel, the moving-out roller having a predetermined moving path is moved by sensing the drawn-out portion of the film, and the moving-out roller in the middle of moving the drawn-out portion of the film It is held by a fixed roller provided on the moving path in contact with the moving roller and the moving roller is rewound, and the film is rewound to detect the leading end of the film, and the transport direction of the film is changed to the delivery direction. The film feeding method is characterized in that the film is guided to a loading guide. 4. The film supply method according to claim 3, wherein the leading end of the film is pulled out by the weight of the film.