JP2001075255A - Method and device for manufacturing instant photographic film unit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily and highly accurately position a continuous member by a simple process and with a simple constitution. SOLUTION: A mark detecting station 57a is provided on the downstream side of a mark forming station 55a to form a mark part 53 at a first continuous member 50, and the mark part 53 is detected through a CCD camera 174 by the mark detecting station 57a. The deviation value of the mark part 53 is calculated based on detected information, and after an average value is calculated by integrating the deviation value for the specified number of times, the tact carrying amount of a main field drum 158 is corrected based on a value obtained by dividing the average value by 13 which is a pitch number.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a method and an apparatus for manufacturing an instant photographic film unit for manufacturing a self-developing instant photographic film unit.

[0002]

2. Description of the Related Art In recent years, with the spread of instant cameras, so-called self-developing type instant photographic film units have been manufactured in large quantities. This instant photographic film unit is composed of a mask sheet having an image frame defining a screen size in the center, a photosensitive sheet having a photosensitive layer coated on a transparent or opaque support layer, and a developing solution between the photosensitive sheet. And a pair of rail members (spacer members) forming a gap between the photosensitive sheet and the transparent sheet for flowing the developing solution. On the mask sheet, a developing solution pod (developing solution container) for storing the developing solution and a trap material (excess liquid collecting member) are adhered to both side edges of the image frame portion of the mask sheet. Have been.

The instant photographic film unit employs various structures, for example, a photosensitive sheet is joined to an upper surface of a mask sheet, and a transparent sheet is joined to the upper surface of the photosensitive sheet via a rail material. There is known a mask sheet in which a developing solution pod and a trap material are wrapped around both side edges of the mask sheet which are orthogonal to the rail members and are folded back on the transparent sheet. Further, a photosensitive sheet and a transparent sheet are arranged in a predetermined stacking order on the mask sheet, and a rail material is attached thereon from the photosensitive sheet to the transparent sheet, and the mask sheet is orthogonal to the rail material. A developing solution pod and a trap material are also attached.

Various proposals have been made to manufacture this kind of instant photographic film unit. For example, Japanese Patent Publication No. 62-55772 discloses a method of manufacturing the same. In this prior art, as shown in FIG. 18, a rail material formed by cutting a rail material web 4 after joining sheets 1 and 2, one of which is a photosensitive sheet and the other a transparent sheet, at a joining portion 3. 5 is heat sealed across the sheet 1 and over a sheet 2 wider than the sheet 1.

[0005] After the joined sheets 1 and 2 are cut along the center line of the rail member 5 at the cutting section 6, the heat sealing section 7 is cut.
Then, the entire edge of the sheet 2 is adhered around the image area opening of the mask sheet 8 at the peripheral joining station 9 at the peripheral joining station 9. Next, in the mounting station 10, the processing liquid pod 11 and the trapping material 12 are bonded to both sides of the mask sheet 8, and then, in the folding station 13, the processing liquid pod 11 and the trapping material 12 are attached to the mask sheet 8. Folds on both edges. Then, after the sealing process is performed at the sealing station 14, the mask sheet 8 is cut at the cutting station 15, whereby an instant photographic film unit is manufactured.

[0006]

However, the sheets 1, 2 and the mask sheet 8 are exposed to a temperature change and a humidity change due to the heat sealing process. In particular, the photosensitive sheet is easily affected by the humidity, and the manufacturing process is difficult. Shrinkage occurs inside. At that time, in the above-described conventional technique, the shrinkage of the sheet 1 or the sheet 2 causes the mask sheet 8 to which the sheet 1 or the sheet 2 is attached to be displaced in the transport direction, and the processing liquid pod It is difficult to paste 11 and trapping material 12 at accurate positions,
In addition, it is pointed out that the cut position of each unit varies. As a result, there is a problem that a high-quality instant photographic film unit cannot be efficiently manufactured.

The present invention solves this kind of problem, and provides a method and apparatus for manufacturing an instant photographic film unit capable of easily and accurately positioning a continuous member with a simple process and configuration. The purpose is to do.

[0008]

In a method and apparatus for manufacturing an instant photographic film unit according to the present invention, after a mask sheet and two sheets are adhered in a predetermined laminated state, a self-developing type instant film is cut by a cutting process. A photo film unit is manufactured, and before the cutting process, a difference between a measurement position of a detection site provided on the continuous member and a positioning reference position is detected, and the continuous member and the processing unit are detected based on the difference. And the relative position has been adjusted.

Thus, the instant photographic film unit can be continuously manufactured, and the mechanical errors of the transport system and the respective processing units and the influence of the expansion and contraction of the continuous member can be reliably avoided. Can be manufactured quickly and efficiently.

The continuous member is tact-conveyed, and is spaced n pitches (n is an integer of 2 or more) downstream from a mark forming station for forming a mark portion, which is a detection site, in the continuous member. A shift amount of the mark portion is detected. Then, the detected shift amount of the mark portion is represented by m
Times (m is an integer of 2 or more) after lamination, or when it is determined that the deviation of the mark portion is larger than the deviation amount detected immediately before the m consecutive times, that is, the deviation of the mark portion in one direction. When it is determined that there is, the feed amount of the continuous member is corrected based on a value obtained by multiplying the average value of the shift amount of the mark portion by n. Therefore, the mark portion formed on the continuous member can be positioned at a predetermined position with high accuracy, and various processes can be accurately performed based on the detection signal of the mark portion.

[0011] Further, the continuous member is tact-conveyed, and the both side edges of the mask sheet are turned inward to be separated by a predetermined pitch downstream of a flap seal bonded to the two sheets. The shift amount of the detection part is detected. Then, the average value of the shift amounts detected n times immediately before (n is an integer of 2 or more) is calculated, and the position of the continuous member of the flap seal in the transport direction is corrected based on the average value. Therefore, the bonding process by the flap seal is performed with high accuracy without being affected by heat shrinkage caused by bonding the mask sheet and the two sheets on the upstream side of the flap seal and a transport error by the transport system. Will be able to perform.

Further, the displacement of the detection portion is detected between a cutting mechanism that cuts the continuous member at predetermined lengths and a transport mechanism that transports the continuous member by tact. Next, a difference between the shift amount detected immediately before and the shift amount detected this time is calculated, and the relative position between the cutting portion of the continuous member and the cutting mechanism is corrected based on the difference.

As described above, the value obtained by adding the difference between the previous measurement value and the current measurement value of the displacement amount of the detected portion to the previous feed amount conveyed before the measurement corresponds to the width dimension of the instant photo film unit measured this time. This data is recorded in accordance with the number of cuts from the displacement detection position to the cutting mechanism. Therefore, when the portion corresponding to the width of the instant photo film unit set based on the shift amount as described above reaches the cutting mechanism, data corresponding to the transport mechanism is sent to correct the tact amount of the continuous member. Is done. Thus, it is possible to efficiently cut the high-quality instant photographic film unit at all times via the cutting mechanism.

Further, when the operation of the instant photo film unit is started after the production operation is stopped,
The continuous member is temporarily returned in anticipation of the amount of contraction of the continuous member. Therefore, even when the machine is stopped, the relative position between the continuous member and other members can be adjusted within an appropriate range.

Further, the displacement detecting means for detecting the displacement of the detection portion includes a reference member fixed at a predetermined position, and the distance between the reference member and the detection portion is measured to detect the displacement. The displacement amount of the part is detected with high accuracy and certainty.

Further, the displacement amount detecting means includes a CCD camera for imaging a detection site with a wavelength at which the photosensitive material to be used does not cover, for example, a wavelength of 800 nm or more; And an illuminating unit for irradiating light having a different wavelength to detect a shift amount of the detection site. For example, as the illumination unit, the wavelength is 80
An infrared LED of 0 nm or more is used. This allows
There is no light having a wavelength within a range in which the light-sensitive material can perceive light, and fogging of the light-sensitive material can be reliably prevented. At this time, the lighting unit is controlled so as to be turned on only when the line is in an operation state, and turned off when the operation of the line is stopped.

Further, a target jig for setting the imaging conditions of the CCD camera is provided at the installation site of the CCD camera. Therefore, when the CCD camera is replaced, or once removed and reinstalled, the CC camera is used.
Through the D camera, it is possible to reliably obtain an image under the same conditions as before.

[0018]

FIG. 1 is an exploded perspective view of an instant photo film unit 20 manufactured by a manufacturing method according to an embodiment of the present invention. FIG. 2 is a perspective view of the instant photo film unit 20. It is.

Instant photo film unit 20
Are a mask sheet 24 having an image frame portion 22, a photosensitive sheet 30 having an image receiving layer and a photosensitive layer,
And a transparent cover sheet 36 having an exposed surface 34, which is overlaid on the spacer member 32 and has an exposure surface 34.

At both ends of the mask sheet 24 in the developing direction (direction of arrow A), folds (thin portions) 38a, 38
b, a developing solution pod (container) 40 and a trap material 42 serving as an excess liquid storage member are adhered to the outside of the folds 38a and 38b, and an under sheet 44 is provided inside the fold 38a. Pasted.

After the photosensitive sheet 30, the spacer member 32, and the cover sheet 36 are overlapped and joined to the mask sheet 24, and the under sheet 44 is joined to the mask sheet 24, the folds 38a and 38b are used to cut the mask sheet 24 from the folds 38a and 38b. Are bent, and the mask sheet 24 is joined onto the cover sheet 36 to form the instant photo film unit 20. The instant photo film unit 20 is provided with an air passage 45 at a folded portion on the trap material 42 side.

The mask sheet 24 is made of colored polyethylene terephthalate (PET), and has a heat sealing adhesive layer 46 on one surface.
The spacer member 32 has a light-shielding layer provided on one surface of transparent or colored PET, and a heat-sealing adhesive layer provided on both surfaces.

As shown in FIG. 3, the instant photograph film unit 20 has outer dimensions H1 and H2 of I
SO 7810 or I shown in JIS X6211
It is set substantially equal to the external dimensions of the D card. Specifically, the outer dimension H1 in the short direction (width direction) is set to 54 mm, and the outer dimension H2 in the long direction (development direction) is 8 mm.
It is set to 5.6 mm. At the four corners of the instant photo film unit 20, chamfers 48 are formed.

Instant photo film unit 20
Has a predetermined assembly accuracy set in the width direction. The assembling accuracy is based on the image frame portion 22 provided in the instant photo film unit 20, and the reference lines O and O 'passing through both end portions of the image frame portion 22 are used as a reference.
The distances X1 and X1 'from the first to the both ends of the trap member 42 are defined. Developing solution pod 40 from reference lines O and O '
X2, X2 'to both ends of the reference line O, O'
From the distance X to the inner ends of the spacer members 32, 32
3, X3 'and the distance X from the reference lines O, O' to both ends of the instant photographic film unit 20.
4, X4 'are defined. Each accuracy is distance X
1, X1 'is within a range of ± 0.5 mm, and distances X2, X2'
Is within ± 0.3 mm, and distances X3 and X3 ′ are ± 0.5
mm and the distances X4 and X4 'are set within a range of ± 0.5 mm.

FIG. 4 is a schematic explanatory view of a method of manufacturing the instant photographic film unit 20 according to the embodiment of the present invention. First continuous member 5 constituting mask sheet 24
0 is conveyed every two pitches in an arrow X direction perpendicular to the developing direction (arrow A direction) of the mask sheet 24, and the first continuous member 50 that is continuously running is located upstream in the conveying direction.
To form folds 38a, 38b on both side edges of
For example, a creasing station 52 using a heated billet or the like is provided.

From the folding line station 52 toward the downstream side, a U-shaped mark portion 53 which is a positioning portion is formed in the first continuous member 50 in the alternate image frame portion 22 in order. When the mark forming station 55a, the air hole forming station 55b that forms a concave portion (deformed portion) that becomes an air passage at the time of deployment, and the two trap members 42 at one side edge of the first continuous member 50 are stopped at the same time. A trap material mounting station 54 for mounting (at substantially the same time); a pod material mounting station 56 for mounting the two developer pods 40 to the other side edge of the first continuous member 50 at the same stop; Mark detection station 57 for detecting the position of the mark portion 53
a and a punching station 59 for forming two image frame portions 22 on the first continuous member 50 at the same stop.

On the downstream side of the punching station 59,
First joining station 6 for joining the second continuous member 58 constituting the photosensitive sheet 30 and the continuous sheet 60 constituting the undersheet 44 onto the first continuous member 50
2 are provided. On the downstream side of the first joining station 62, a first thermal bonding for thermally bonding the second continuous member 58 and the continuous sheet 60 to the two image frames 22 of the first continuous member 50 is performed. A station 64 is provided.

On the downstream side of the first heat bonding station 64, a second heat for temporarily bonding two rail members 65 having twice the width of the spacer member 32 to both sides of the image frame portion 22. A bonding station 66 is provided. A heat-sealing adhesive is applied to both surfaces of the rail member 65 in advance. Downstream of the second heat bonding station 66, there is provided a second bonding station 70 for mounting the third continuous member 68 constituting the cover sheet 36, and downstream of the second bonding station 70, a rail is provided. A third thermal bonding station 72 is provided for bonding the third continuous member 68 to the second continuous member 58 by the material 65.

On the downstream side of the third thermal bonding station 72, a folding station 74 which wraps the side edges of the first continuous member 50 and wraps the trapping material 42 and the developing solution pod 40 is provided. A fourth heat bonding station 76 is provided for integrally bonding both side edges of the continuous member 50 across the two instant photo film units 20. On the downstream side of the fourth thermal bonding station 76, a cutting station (cutting) which is a processing unit for sequentially cutting and corner-cutting the instant photo film units 20 one by one at a substantially intermediate portion of the rail material 65. Mechanism 78 is provided.

On the downstream side of the cutting station 78, a predetermined number of the instant photo film units 20 are
For example, a stacking station 80 for automatically stacking 10 sheets at a time, and a packing station 84 for automatically storing the instant photographic film unit 20 stacked on the stacking station 80 and then automatically storing it in a film pack 82 are provided. Provided.

In the present embodiment, the length (exterior dimension H1) in a direction perpendicular to the developing direction (direction of arrow A) of the outer dimensions of the instant photographic film unit 20 is set as the unit pitch for conveyance, and the fourth line is formed from the mark forming station 55a to the fourth station. In the process up to the heat bonding station 76, the tact transfer is performed at every plural pitches (for example, every two pits) where the stopping time can be extended and high-speed production can be performed. Tact transport.

FIG. 5 and FIG. 6 are schematic structural explanatory views of a manufacturing system (manufacturing apparatus) 90 for implementing the method for manufacturing the instant photographic film unit 20 according to the present embodiment.

The manufacturing system 90 includes a bright room 92 and a dark room 94
The light chamber 92 includes the first continuous member 5.
Mask sheet supply unit 9 for feeding 0 from a roll
6 is provided on the downstream side of the mask sheet material supply section 96,
5a, an air hole forming station 55b, a trap material mounting station 54, and a pod material mounting station 56 are provided.

The mark forming station 55a is provided with a mark punch 98. The mark punch 98 forms a substantially U-shaped mark portion 53 on the first continuous member 50. The air hole forming station 55b is provided in the same station as the mark forming station 55a, and forms a recess at the center of the edge of the first continuous member 50 on the trap material mounting side by a press (not shown).

A first free loop 1 for cutting tension acting on the first continuous member 50 is provided between the crease station 52 and the mark forming station 55a.
00 is provided. In the mask sheet material supply section 96, the first continuous member 50 is continuously moved in order to form the folds 38a and 38b satisfactorily. On the other hand, after the mark forming station 55a, the first continuous member 50 is tact-conveyed. Because it is done.

As shown in FIG. 4, the trap material mounting station 54 includes two trap material webs 42a,
42b is provided in a roll shape. The two trap materials 42 are obtained by cutting the trap material webs 42a and 42b fed from the roll into predetermined lengths. The trap material webs 42a and 42b have a thickness of 70 mm.
It is made of a nonwoven fabric set to about 0 μm, and is cut into a desired size in the direction of the arrow X in advance and wound into a roll. The pod material mounting station 56 is configured so that two developing solution pods 40 can be simultaneously supplied to the first continuous member 50.

As shown in FIG. 5, the dark room 94 is provided from both sides of the bright room 92 to the upper side, and on the downstream side of the mark detection station 57a, a light shielding for shielding the dark room 94 from the bright room 92 is provided. The mechanism 102 is arranged. The light shielding mechanism 102 includes a light shielding box 104 and a first continuous member 5 disposed in the light shielding box 104.
0, a pair of support rollers 106a, 10
6b and a pressing roller 108 which wraps around the support rollers 106a and 106b and presses the upper part of the first continuous member 50 downward to bend the first continuous member 50.
a, 108b.

In the dark room 94 on the upstream side of the bright room 92, a light-sensitive material supply unit 1 for feeding the second continuous member 58 from a roll is provided.
09 is provided. The second continuous member 58 fed from the light-sensitive material supply unit 109 is sent to the first joining station 62 over the mask sheet material supply unit 96 and is sent to the bright room 92 above the first joining station 62. The under sheet material supply unit 110 for supplying the continuous sheet 60 is disposed. Downstream of the under sheet material supply unit 110, a rail material supply unit 11 for supplying a set of rail materials 65 to the second thermal bonding station 66.
2, a cover sheet material supply unit 114 for supplying the third continuous member 68 to the second joining station 70 is disposed downstream of the rail material supply unit 112.

As shown in FIGS. 5 and 6, the folding station 74 is provided with formers 116 for folding both side edges of the first continuous member 50 inward, respectively, and includes first to third heat sources. Bonding station 64,
66 and 72 include thermal bonders 118, 120, respectively.
And 122 are installed so that the position can be adjusted in the transport direction by two sets. In the fourth thermal bonding station 76, a flap seal 124 movable in the transport direction is provided,
The flap seal 124 and the thermal bonding machines 118, 120 and 122 form a bonding mechanism 126.

As shown in FIG. 7, the flap seal 124
Is a flap temporary attaching means 130 for temporarily attaching and bonding flaps at both ends of the folded first continuous member 50.
And flap permanent attaching means 13 for permanently adhering the flap.
2 and flap re-adhering means 134 for re-adhering the edge of the flap on the side of the trap material 42, and these are sequentially arranged along the transport direction (the direction of the arrow X). The flap temporary attaching means 130 includes a first pressing block 140 supported on the lower frame 138 so as to be able to move up and down, and a second pressing block 144 supported on the upper frame 142 so as to be able to move up and down. The tip shapes of the second pressing blocks 140 and 144 are set corresponding to the rail members 65.

Similarly, the flap attaching means 132 includes third and fourth pressing blocks 146 and 148 supported by the lower frame 138 and the upper frame 142 so as to be able to move up and down. The third pressing block 146 is provided with silicone rubber over a wider range than the width dimension of the first continuous member 50 whose both end portions are turned back, while the fourth pressing block 148 is provided.
Is set to a shape that integrally seals both flaps of the two instant photo film units 20.

The flap re-adhesion means 134 is provided for the lower frame 1
Fifth pressing block 150 supported so as to be able to move up and down freely
a, 150b, and sixth pressing blocks 152a, 152b supported by the upper frame 142 so as to be able to move up and down. The fifth pressing blocks 150a, 150b
Are set on the flap side where the rail member 65 is provided. Lower frame 138 and upper frame 1
Reference numeral 42 is configured to be integrally movable in the arrow X direction.

As shown in FIGS. 5 and 6, a mark forming station 55 is provided downstream of the flap seal 124.
a main feed mechanism 156 for performing tact transfer from the “a” to the fourth thermal bonding station 76 at every two pitches.
Is provided. The main feed mechanism 156 includes a main feed drum 158.
58 is controlled so that the interval of the transport pitch can be arbitrarily changed according to the position of the mark section 53 detected by the mark detection station 57a.

A cut feed drum 164 constituting a cut feed mechanism 162 is disposed downstream of the main feed drum 158 via a second free loop 160. The cut feed drum 164 is controlled so that the cutting process at the cutting station 78 is tact-conveyed at every pitch. First and second free loop 10
Reference numerals 0 and 160 are formed by suction boxes 166 and 168 (see FIG. 5).

As shown in FIG. 6, immediately downstream of the light shielding mechanism 102, immediately upstream of the fourth thermal bonding station 76, and immediately upstream of the cutting station 78, a frame portion for detecting the edge detection station 57b and the image frame portion 22 is provided. Detection stations 57c and 57d are provided.

The mark detection station 57a has
As shown in FIG. 9, a shift amount detecting unit 172 constituting the positioning control mechanism 170 is provided. This displacement amount detecting means 172 is provided in the mark portion 53 of the first continuous member 50.
A CCD camera 174 for imaging the image from above, and an illumination unit 176 for illuminating the mark unit 53. The CCD camera 174 has a wavelength that the second continuous member 58 constituting the photosensitive sheet 30 does not cover, for example, a wavelength of 800 nm or more, and the illumination unit 176 similarly emits the second
An LED that emits infrared light having a wavelength (800 nm or more) that does not cover the continuous member 58 is used.

The mark detection station 57a has a first
Mark portion holding means 180 for holding the mark portion 53 of the continuous member 50 is provided. The mark part holding means 180
A suction table 184 that suction-holds a tongue piece 182 partially cut out from the mark portion 53; and an air blowing member 18 that urges the tongue piece 182 toward the suction table 184 by air pressure.
6 is provided. The suction table 184 has a suction surface inclined downward from the horizontal direction, and a suction hole 188 communicates with a vacuum source (not shown). Mark detection station 5
A reference member 190 is disposed at 7a, and the amount of displacement of the mark portion 53 is detected by measuring the distance between the reference member 190 and the mark portion 53.

A target jig 192 for setting photographing conditions when the CCD camera 174 is exchanged or attached or detached is detachably arranged in accordance with the image pickup position of the CCD camera 174. As shown in FIG. 10, the target jig 192 is formed in a substantially rod shape, a notch 194 is formed at an intermediate portion thereof, and a reference projection 196 is provided on the bottom side of the notch 194. The upper surface of the reference projection 196 is set at the same height position as the passing first continuous member 50. This target jig 1
When the CCD camera 174 is placed in the downward direction, the target jig 192 is turned 180 °, that is, the reference projection 196 is directed downward. The fixed base 198 in the posture
Inserted and held.

The edge detection station 57b and the frame detection stations 57c and 57d are configured in the same manner as the above-described mark detection station 57a, and the same components are denoted by the same reference characters and will be described in detail. Is omitted. The edge detection station 57b detects one edge portion in a direction (arrow A direction) intersecting the transport direction of the first continuous member 50.

As shown in FIG. 6, the flap seal 12
4. The main feed drum 158 and the cut feed drum 164 are provided with servo motors 202 and 204, respectively.
And 206, the servo motors 202, 2
04 and 206 are synchronously controlled by a controller 214 via servo drivers 208, 210 and 212. The cutting station 78 is driven by a servomotor 216, which is controlled by a controller 214 via a servodriver 218.

The trap material mounting station 54, the mark forming station 55a, the air hole forming station 55b, the pod material mounting station 56, the punching station 59, and the first to fourth thermal bonding stations 6
A cam driving means 220 for synchronously driving 4, 66, 72 and 76 is provided, and the driving of the cam driving means 220 is controlled by a servo motor 222. This servo motor 2
22 is the controller 2 via the servo driver 224
14, and the bonding mechanism 126 is driven and controlled by the controller 214.

As shown in FIG. 11, the controller 214
Comprises a first sequencer 230 for controlling the image processing apparatus, and a second sequencer 232 for main control. The first sequencer 230 includes a mark detection station 57a, an edge detection station 57b, and frame detection stations 57c and 57d. ON / OF the lighting unit 176 provided in the
It has a function as a lighting control unit that performs F control. First
An image processing device 234 to which image information from each CCD camera 174 is input is connected to the sequencer 230. The determination result and the numerical data are input from the first sequencer 230 to the second sequencer 232 via the remote IO 236.

The second sequencer 232 includes a servo motor 2
02, 204, 206, 216 and 222, each position control module 238.
, The servo motor 20 via the servo driver 208
, A servo controller (flap seal position correcting means) 240 for controlling the servo motor 204, a servo controller (feed amount correcting means) 242 for controlling the servo motor 204 via the servo driver 210, and a servo motor 206 via the servo driver 212. A servo controller (cutting section correcting means) 244 for controlling the servo controller 218
And a servo controller 246 that drives and controls the servo motor 216 via a servo driver 224 and a servo controller 248 that drives the servo motor 222 via a servo driver 224. The second sequencer 232 includes an IO 250
Are connected to various sensors and actuators.

The operation of the manufacturing system 90 configured as described above will be described in relation to the manufacturing method according to the present embodiment.
This will be described below with reference to the flowcharts shown in FIGS.

In this case, the first to third continuous members 50,
Of the members 58 and 68, the second continuous member 58 constituting the photosensitive sheet 30 is particularly liable to contract due to a change in temperature or a change in humidity due to the heat bonding process. Accordingly, the amount of contraction of the second continuous member 58 is relatively small between the time when the second continuous member 58 is bonded to the first continuous member 50 at the first heat bonding station 64 and the time when the second continuous member 58 reaches the cutting station 78. Will be large. For this reason, the second continuous member 58
The first continuous member 50 to which is adhered may be displaced in the X direction as the second continuous member 58 contracts.

At this time, as shown in FIG. 3, the instant photographic film unit 20 has various dimensions set with reference to the image frame section 22, and various processes in the manufacturing system 90 are performed by the image frame section 22. Is the reference for positioning. Therefore, when the first continuous member 50 is displaced in the transport direction due to the contraction of the second continuous member 58, the developing solution pod 40 and the trap
2 or the position of the spacer member 32 fluctuates, and the manufactured instant photographic film unit 20 may be defective. In particular, in the manufacturing system 90,
The transport distance in the direction of the arrow X is longer, the error accumulated for each pitch increases, and the first continuous member 50 is likely to be displaced.
The contraction of the continuous member 58 becomes remarkable, and the first continuous member 50 is displaced.

Therefore, in the present embodiment, the position of the mark portion 53 formed on the first continuous member 50 is detected by the mark detection station 57a, and the drive of the main feed drum 158 is controlled based on the detection result. At the same time, the image frame 2
2, the flap seal 124 and the cut feed drum 164 are driven and controlled based on the detection result. Therefore, the operation of the manufacturing system 90 will be described focusing on the above control.

The manufacturing system 90 includes a controller 214
The driving is controlled through the mask sheet material supply unit 9.
The roll-shaped first continuous member 50 set at 6 is fed out (step S1 in FIG. 12). First, the first continuous member 50 is subjected to tension cutting in the first free loop 100 after the creases 38a and 38b are formed on both side edges while continuously running at the crease line station 52 (step S2). Next, the main feed drum 15
Under the driving action of No. 8, the first continuous member 50 is tact-conveyed every two pitches in the direction of the arrow X.

The first continuous member 50 is tact-conveyed every predetermined length (two pitches), and is transferred to the mark forming station 55a, the air hole forming station 55b, the trap material mounting station 54, and the pod material mounting station 56. Are sequentially conveyed. At the mark forming station 55a, the first
Mark portions 53 are respectively formed at positions corresponding to every other image frame portion 22 of the continuous member 50, and at the air hole forming station 55b, the trap material of the first continuous member 50 is pressed by a press (not shown). A recess is formed at the center of the mounting side edge (step S3).

At the trap material mounting station 54, as shown in FIG.
a and 42b are rewound and cut to a predetermined width, respectively. After that, the two trap members 42 are separated from each other by a predetermined distance on one side edge of the first continuous member 50 and at the same time (at substantially the same time). ) (Step S4). Further, at the pod material mounting station 56, at the same stop,
Two developing solution pods 40 are attached to the other side edge of the first continuous member 50 with a predetermined space therebetween (step S5).

The first continuous member 50 is conveyed to the mark detection station 57a, and as shown in FIGS. 8 and 9, the mark portion 53 is detected via the shift amount detecting means 172 constituting the positioning control mechanism 170. (Step S
6). In the mark detection station 57a, under the suction action of the suction table 184 constituting the mark portion holding means 180,
While the tongue piece 182 is held on the suction surface of the suction table 184, air is blown from the air blowing member 186 to the tongue piece 182. For this reason, the CCD camera 174 constituting the shift amount detecting means 172 includes the mark 53 and the reference member 1.
The image information of the mark portion 53 is sent to the image processing device 234.

As shown in FIG. 11, the first sequencer 23
When the image information is input from the image processing device 234, the arithmetic processing of the detection position of the mark portion 53 is performed based on the preset information, and numerical data is input to the second sequencer 232. The second sequencer 232 controls the drive of the servo motor 204 from the servo controller 242 via the servo driver 210, thereby adjusting the pitch feed length of the main feed drum 158 (step S7).

Next, the main feed drum 158
Will be described in detail with reference to FIG. 13 and FIG.

This main feed drum 158
The control is performed by taking the average value of the past 50 pitches for each pitch, without taking in the data of the first 14 pitches, taking in the data of the subsequent 50 pitches and calculating the average value. By taking an average over a long span of 50 pitches every 64 pitches, short-period fluctuations and random fluctuations can be ignored.

Therefore, after 14 pitches have elapsed since the previous control (YES in step S21), the mark 53
Is input (step S22). The position data of each mark portion 53 is compared with preset reference position data and the difference is calculated (step S2).
3) When the deviation amount of the mark portion 53 is integrated up to 50 times (m times) (YES in step S24), the process proceeds to step S25, and the average value is calculated.

Here, as shown in FIG. 14, the distance between the mark forming station 55a and the mark detecting station 57a is 13 (n) pitches in the transport pitch.
The average value calculated in step S25 is a shift amount that is 13 times as large as one tact transport amount. Therefore, the process proceeds to step S26, in which the average value is divided by 13 (step S26), so that one of the main feed drums 158
The shift amount at the time of tact transfer for each time is calculated.

Next, if this deviation amount is equal to or larger than the preset minimum control amount (YE during step S27).
S), proceeding to step S29, it is determined whether or not the deviation amount is equal to or greater than the maximum control amount. Then, when it is determined that the deviation amount is equal to or more than the maximum control amount (during step S28,
YES), the process proceeds to step S29, and the maximum control amount is set. The maximum control amount is set within a range of 0.1 mm to 10.0 mm, and is set to, for example, about 1 mm.

Therefore, when the calculated deviation exists between the minimum control amount and the maximum control amount, the step S
On the other hand, when it is equal to or more than the maximum control amount, the process proceeds to step S30 after the maximum control amount is set, and the feed amount is corrected. This feed amount is output to the second sequencer 232 (step S31), and the servo motor 204 is drive-controlled via the servo controller 242, and the tact transport amount of the main feed drum 158 is corrected in units of, for example, 10 μm.

As described above, in the present embodiment, the mark portion 53 is formed at a position spaced apart from the mark forming station 55a for forming the mark portion 53 of the first continuous member 50 by a predetermined pitch, for example, 13 pitches. After the deviation is detected, the detected deviation of the mark portion 53 is integrated 50 times. Next, an average value of the shift amounts of the mark portions 53 is calculated, and the first continuous member 50 by the main feed drum 158 is calculated based on a value obtained by dividing the average value by 13.
Is corrected.

For this reason, the first continuous member 50 can be tact-conveyed with high precision via the main feed drum 158, and the relative positions of the mark 53 and the developing solution pod 40, the trapping material 42, etc., that is, Relative positions of the image frame portion 22, the developing solution pod 40 and the trap material 42,
The relative position between the image frame portion 22 and the spacer member 32 is adjusted within a desired accuracy range. Thus, the entire manufacturing process of the instant photo film unit 20 is performed with high accuracy, and an effect is obtained that a high quality instant photo film unit 20 can be manufactured quickly and efficiently.

The shift amount detecting means 172 uses a CCD.
The camera 174 and the illumination unit 176 have wavelengths at which the second continuous member 58 constituting the photosensitive sheet 30 does not cover, for example,
Since it has a wavelength of 800 nm or more, the second continuous member 58 can be maintained at a high quality. Moreover, the lighting unit 176 is turned on only when the line is in operation, and is controlled to be turned off when the operation of this line is stopped. Therefore, occurrence of fogging of the second continuous member 58 can be more reliably prevented.

Further, the CCD camera 174 may be replaced for maintenance or the like. In this case, it is necessary to set the imaging conditions of the CCD camera 174.
That is, the target jig 192 is mounted on the fixed base 198 facing the CCD camera 174 (see FIG. 10).
The target jig 192 is provided with a reference projection 196 set at the same height as the passing position of the first continuous member 50, and the CCD camera 174 is provided with the reference projection 196.
Is imaged.

Reference data is recorded in the image processing device 234 in advance, and the operator converts the dimensional conversion value per pixel so that the image of the reference projection 196 captured by the CCD camera 174 matches the reference data. , The offset amount of the position data is set. Thus, the CCD camera 174 can obtain data under the same conditions as the imaging conditions before replacement, and a highly accurate deviation amount detection process is performed via the CCD camera 174. Note that CC
After the imaging condition setting operation of the D camera 174 is completed, the target jig 192 is removed from the fixed base 198.

As shown in FIG. 5, the first continuous member 50
The light room 9 is driven by the main feed drum 158.
2 to the dark room 94 via the light shielding mechanism 102.
In the light shielding mechanism 102, the support rollers 106a, 106
b and the pressing rollers 108a and 108b impart a predetermined curved shape to two portions of the first continuous member 50,
Thus, the inside of the dark room 94 can be effectively shielded from light.

Light shielding box 1 constituting light shielding mechanism 102
04 and the first continuous member 50 carried into the dark room 94.
Is sent to the edge detection station 57b. In the edge detection station 57b, the CCD camera 174
An image of one edge portion in the width direction of the first continuous member 50 is taken through the image processing device 234, and a shift amount of one end portion of the mark portion 53 is calculated by the image processing device 234. If the shift amount is equal to or more than the reference minimum value, for example, the position of the first continuous member 50 is adjusted in the direction of arrow A according to the shift amount under the action of a motor (not shown) via the light shielding mechanism 102. Then, the transport position of the first continuous member 50 in the direction of arrow A is controlled (step S8). Note that the position adjustment of the first continuous member 50 in the direction of arrow A by the light blocking mechanism 102 is not performed, and
It is also possible to stop the equipment assuming that an abnormality has occurred.

Next, the first continuous member 50 is conveyed to the punching station 59 and the first continuous member 50
Two image frame portions 22 are formed at the same stop (step S9). Further, in the first joining station 62, the second continuous member 58 and the continuous sheet 60 are fed out from the photosensitive material supply unit 109 and the under sheet material supply unit 110, respectively, and the second continuous member 58 and the continuous sheet 60 are fed out. 60 is joined on the first continuous member 50. Then, in the first thermal bonding station 64, the second continuous member 58 and the continuous sheet 60 are thermally bonded to the first continuous member 50 so as to cover the two image frame portions 22 (Step S10).

Next, the two rail members 65 are fed out in a belt shape from the rail member supply section 112, and are cut into predetermined lengths. Each rail member 65 is thermally bonded on the second continuous member 58 and the continuous sheet 60 corresponding to both sides of the image frame 22 at the second thermal bonding station 66 (step S11). Therefore, the cover sheet material supply unit 114
After the third continuous member 68 arranged in the form of a roll is fed out, and the third continuous member 68 is bonded on the second continuous member 58 at the second bonding station 70, the third heat bonding station At 72, the second through the rail material 65
Then, the third continuous members 58 and 68 are thermally bonded (step S12).

Proceeding to the folding station 74, the side edges of the first continuous member 50 are folded inward along the folds 38a and 38b via the former 116 (step S13), so that traps are formed at the both side edges. Lumber 4
2 and the developing solution pod 40 are wrapped, the position of the flap seal 124 is controlled (step S1).
4).

First to third members which cause thermal contraction of each member
There is a considerable number of pitches between the heat bonding stations 64, 66 and 72 and the flap seal 124. In addition to heat shrinkage, the web position of the main feed drum 158 is insufficient and the position of the main feed drum 158 fluctuates. Is triggered,
Insufficient sealing, jamming, and the like are likely to occur. Therefore, the image frame 22 is detected by the frame detection station 57c, and the flap seal 124 is controlled to move forward and backward in the arrow X direction in order to keep the relative position between the image frame 22 and the seal position constant.

More specifically, as shown in FIG. 15, in the bonding process of the flap seal 124, the respective steps of the temporary fixing seal, the main seal and the edge seal are performed at three transport pitches, while the frame detecting station 57c It is set at a distance of two conveyance pitches upstream from the flap seal 124. In the frame detection station 57c, the current displacement a4 of the image frame 22 is measured based on the image information of the image frame 22 captured via the CCD camera 174. The shift amount a, which is the measurement data of the three immediately preceding measurements
3, a2 and a1 correspond to deviation amounts from a reference value corresponding to three transport pitches sent to the flap seal 124 by the current pitch transport. Therefore, the shift amount a
3, the average value of a2 and a1 a = (a1 + a2 + a3)
What is necessary is just to move the flap seal 124 back and forth in the arrow X direction by / 3.

Therefore, assuming that the position of the immediately preceding flap seal 124 is H1 and the design reference position of the flap seal 124 is H0, the position H of the flap seal 124 to be set by the current measurement is H = H0− a, the flap seal 124 is moved by H-H1, which is the difference from the previous position. This flap seal 12
The movement control of No. 4 is performed under the driving action of the servo motor 202 by inputting a drive signal to the servo driver 208 via the servo controller 240. If the average value a is a certain value between 0.001 mm and 0.1 mm, for example, 0.003 mm or less, or if the current operation amount H-H1 is less than a predetermined value, No correction operation is performed. Further, the absolute value of the position H of the flap seal 124 to be set by the current measurement is a predetermined value between 0.01 mm and 10.0 mm, for example,
If it is 0.2 mm or more, the position H of the flap seal 124 is set to the predetermined value (for example, 0.2 mm). That is, upper and lower limits are set for the operation amount.

As described above, the displacement of the image frame portion 22 is detected immediately upstream of the flap seal 124, and the position of the flap seal 124 is adjusted based on the displacement. Therefore, for example, even if thermal contraction occurs in the second continuous member 58 or the web restraint of the main feed drum 158 becomes insufficient, the relative position between the image frame portion 22 and the seal position is accurately matched. Therefore, the effect that the flap bonding process is performed with high precision and efficiency can be obtained.

In the flap seal 124, after the flap of the first continuous member 50 is temporarily bonded by the flap temporary bonding means 130, the flap is fully bonded through the flap permanent bonding means 132, and further, the flap re-adhering means. The edge of the flap on the side of the trap material 42 is re-adhered via 134 (step S15).

The joined body in which the first to third continuous members 50, 58 and 68 are adhered to each other in a predetermined laminated state is separated from the main feed drum 158 by the second free loop 160.
To the cut feed drum 164 via the
It is sent to the cutting station 78 while being tact-conveyed in the arrow X direction for each pitch.

In the cutting station 78, since the cutting mechanism has high-speed suitability, a single unit may be used.
The image frame portion 22 is detected on the downstream side of 64, and the web position can be controlled and transported (step S16). That is, as shown in FIG.
A frame detection station 57d is provided immediately downstream of the cut feed drum 164 between the cutting station 78 and the cutting station 78. The frame detection station 57d extends from the frame detection station 57d to the cutting station 78 by five transport pitches. Separated.

The frame portion detection station 57d detects the displacement amount of the image frame portion 22 for each instant photographic film unit 20, and determines the difference between the displacement amount measured this time and the displacement amount measured last time before the current measurement. In addition, the width of the instant photo film unit 20 measured this time can be obtained by adding to the previous feed amount conveyed to the printer. This width dimension data is set as the feed amount of the cut feed drum 164 after five times.

As described above, the width dimension data corresponding to the five instant photo film units 20 from the cutting station 78 to the frame portion detection station 57d is stored, and each instant photo film unit 2 is stored.
The tact transport amount of the cut feed drum 164 is corrected for each 0. At this time, the reference feed amount is set in advance, and when the width dimension of the instant photo film unit 20 measured this time is equal to or more than the specified value compared to the reference feed amount, the actual feed amount is set to the reference feed amount. The upper limit is a value obtained by increasing or decreasing the specified value to the amount, and no further correction is performed. The reference feed amount is the instant photo film unit 2
The standard value of 0 is 54 mm or 108 mm, and the specified value is in the range of 0.01 mm to 1 mm, specifically,
It is set to 0.1 mm.

In the present embodiment, the frame detecting station 57d is set at a position upstream of the cutting station 78 and separated by five transport pitches. However, the present invention is not limited to this. Can be set.

As described above, in the present embodiment, the image frame portion 22 is detected on the upstream side of the cutting station 78, and the drive of the cut feed drum 164 is controlled based on the detection result. For this reason, there is no variation in the cutting position of each instant photo film unit 20, the desired position can be cut accurately and reliably, and the high quality instant photo film unit 20 can be efficiently obtained. There is.

At the cutting station 78, the four corners of the joined body are cut while being chamfered (step S).
17) The instant photo film unit 20 is formed one by one. The instant photo film unit 20 is stacked (stacked) by a predetermined number of sheets at the stacking station 80 (step S18), and then inverted and sent to the packing station 84, where the film pack 82 is stacked.
Is automatically accommodated in the storage (step S19).

By the way, when the machine is stopped, the amount of heat shrinkage particularly at the first to third heat bonding stations 64, 66 and 72 becomes large, and the relative positions of the image frame 22 and other members may be largely shifted. There is. For this reason, before starting the web conveyance at the start of the operation, the main feed drum 158 is controlled so that the position of the mark portion 53 is returned until the detection position deviation at the mark detection station 57a becomes zero. As a result, even when the machine is stopped,
It is possible to adjust the relative positions of the image frame portion 22 and other members within an appropriate range.

More specifically, the difference between the measurement data at the mark detection station 57a at the time of stoppage and the measurement data at the time when the operation start command is output is determined as the contraction amount, and the main feed drum 158 is controlled before the operation starts. Return by this stretched amount. However, due to various facilities disposed between the main feed drum 158 and the mark detection station 57a, the mark detection station 57a
Then, there is a possibility that the above-mentioned contracted amount does not return. Therefore, it is necessary to return the main feed drum 158 by adding the actually calculated correction amount to the calculated expansion / contraction amount, and this correction value is 50% to 300% centering on 100% that is not corrected.
%, For example, a value of about 150%.

Further, by returning the main feed drum 158 before restarting the operation, the portion of the instant photographic film unit 20 disposed at the first to third thermal bonding stations 64, 66 and 72 is returned.
Therefore, it is necessary to correct the position data of the flap seal 124 already measured at the frame portion detection station 57c. Accordingly, the contraction amount set when calculating the return amount of the main feed drum 158, or the position data of the image frame portion 22 at the frame portion detection station 57c before the stop and the image after the main feed drum 158 is returned. The difference from the position data of the frame 22 is used. Then, a process of subtracting this value from the displacement amount measurement values a4, a3, a2, and a1 of each image frame portion 22 sent to the flap seal 124 is performed.

In the present embodiment, the following method can be used to control the main feed drum 158 based on the positional deviation inspection at the mark detection station 57a.

That is, the shift amount detected based on the image information of the mark portion 53 captured through the CCD camera 174 is, for example, four times (m times) longer than the shift amount detected immediately before. When it is determined that the difference is large, that is, when it is determined that the displacement of the mark portion 53 is continuously occurring in one direction, the average value of the four measurement data is calculated. Next, when the average value is equal to or larger than a predetermined value, a value obtained by dividing the average value by 13 is used as an increase / decrease value of the feed amount of the main feed drum 158, and the tact transport amount of the main feed drum 158 is corrected. Is performed. Thereby, the first continuous member 50 can be stably transported with high accuracy.

Further, instead of the shift amount detecting means 172,
The shift amount detecting means 172a shown in FIG. 17 can be used. The displacement amount detecting means 172a includes a laser scan type non-contact length measuring sensor 260 instead of the CCD camera 174. The non-contact length measuring sensor 260 scans the laser to scan the reference member 190 and the mark portion 5.
By measuring the distance from the end of the mark 3, the position of the mark portion 53 with respect to the reference member 190 can be accurately detected. Therefore, the position of the mark portion 53 with respect to the reference member 190 can be measured every tact conveyance,
An effect similar to that of the shift amount detecting means 172 provided with the camera 174 can be obtained.

In this embodiment, the photosensitive sheet 30 is constituted by the second continuous member 58. However, the photosensitive sheet 30 may be constituted by the third continuous member 68. Further, in the present embodiment, the case has been described in which the instant photo film unit 20 that is substantially equal to the outer dimensions of the ID card is manufactured.
Is 108 mm, and the outer dimension H2 in the developing direction is 85.6 mm
Can be manufactured. At this time, in the manufacturing system 90, the first
By setting the pitch to 108 mm, it is possible to respond.

[0098]

According to the method and apparatus for manufacturing an instant photographic film unit according to the present invention, a detection site provided on a continuous member is measured, and based on a difference between the measured detection site and a positioning reference site, The relative position between the continuous member and the processing unit is adjusted. Therefore, the mask sheet and the two sheets are accurately laminated and bonded together, and the components such as the developing solution pod are bonded with high precision to efficiently manufacture a high-quality instant photographic film unit. Becomes possible.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of an instant photo film unit manufactured by a manufacturing method according to an embodiment of the present invention.

FIG. 2 is a perspective view of the instant photo film unit.

FIG. 3 is an explanatory front view of the instant photographic film unit from an exposure surface.

FIG. 4 is a schematic explanatory view of the manufacturing method.

FIG. 5 is a schematic structural explanatory view of a manufacturing system for implementing the manufacturing method.

FIG. 6 is a schematic configuration explanatory view including a control unit of the manufacturing system.

FIG. 7 is a schematic configuration explanatory view of a flap seal constituting the manufacturing system.

FIG. 8 is an explanatory side view of a shift amount detecting unit included in the manufacturing system.

FIG. 9 is a schematic perspective explanatory view of the shift amount detecting means.

FIG. 10 is an explanatory perspective view of a target jig for adjusting a CCD camera which constitutes the shift amount detecting means.

FIG. 11 is an explanatory diagram of a configuration of a controller constituting the manufacturing system.

FIG. 12 is a flowchart illustrating the manufacturing method.

FIG. 13 is a control flowchart of a main feed drum in FIG.

FIG. 14 is a control explanatory diagram of the main feed drum.

FIG. 15 is a control explanatory diagram of a flap seal.

FIG. 16 is a control explanatory diagram of a cut feed drum.

FIG. 17 is an explanatory side view showing another configuration of the shift amount detecting means.

FIG. 18 is an explanatory view of a conventional manufacturing method.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 20 ... Instant photo film unit 22 ... Image frame part 24 ... Mask sheet 30 ... Photosensitive sheet 32 ... Spacer member 34 ... Exposure surface 36 ... Cover sheet 38a, 38b ... Crease 40 ... Developing solution pod 42 ... Trap material 44 ... Under sheet 50, 58, 68 ... continuous member 52 ... crease station 53 ... mark portion 54 ... trap material mounting station 55a ... mark forming station 55b ... air hole forming station 56 ... pod material mounting station 57a ... mark detection station 57b ... edge detection Stations 57c, 57d Frame detection station 59 Punching station 60 Continuous sheets 62, 70 Joining stations 64, 66, 72, 76 Thermal bonding station 74 Folding station 7 ... Cutting station 82 ... Film pack 84 ... Pack filling station 90 ... Manufacturing system 96 ... Mask sheet material supply unit 100,160 ... Free loop 110 ... Under sheet material supply unit 112 ... Rail material supply unit 114 ... Cover sheet material supply unit 116 ... Former 124 ... Flap seal 126 ... Adhesion mechanism 130 ... Flap temporary attachment means 132 ... Flap actual attachment means 134 ... Flap re-adhesion means 156 ... Main feed mechanism 158 ... Main feed drum 162 ... Cut feed mechanism 164 ... Cut feed drum 170 ... Positioning control mechanism 172, 172a ...
Deviation detecting means 174 CCD camera 176 Illumination section 180 Mark holding means 190 Reference member 192 Target jig 202, 204, 206, 216, 222 Servo motor 214 Controller 230, 232 Sequencer 234 Image Processing device 238 Position control module 240, 242, 244, 246, 248 Servo controller

Continuing on the front page (72) Inventor Tatsuo Shiino 210 Nakanakanuma, Minamiashigara-shi, Kanagawa Prefecture Inside Fuji Photo Film Co., Ltd. Kotobuki 210 Nakanuma, Minamiashigara-shi, Kanagawa Prefecture, Fuji Photo Film Co., Ltd.

Claims (16)

[Claims] 1. A mask sheet having an image frame portion and two sheets having a photosensitive layer on one side are laminated and adhered, and are derived from a developing solution pod disposed at a predetermined position. A method for manufacturing an instant photographic film unit that obtains an image by spreading a developing solution between the two sheets, wherein the mask sheet and the two sheets are formed by connecting at least one member to a continuous member. And and bonded to each other in a predetermined laminated state, by cutting the continuous member at predetermined lengths,
Manufacturing a self-developing instant photographic film unit, and, before cutting, measuring a detection site provided on the continuous member, and comparing the measured detection site with a positioning reference position. Detecting a difference and adjusting a relative position between the continuous member and the processing unit based on the difference. 2. The manufacturing method according to claim 1, wherein the continuous member is tact-conveyed, and n pitches (n pitches) are provided downstream from a mark forming station for forming a mark portion as the detection site in the continuous member. n is 2
A step of detecting the amount of deviation of the mark portion at a position spaced apart from the mark portion; and integrating the detected amount of deviation of the mark portion m times (m is an integer of 2 or more). Calculating a mean value of the amount and correcting the feed amount of the continuous member based on a value obtained by dividing the mean value by n. 3. The manufacturing method according to claim 1, wherein the continuous member is tact-conveyed, and n pitches (n pitches) downstream from a mark forming station for forming a mark portion as the detection site in the continuous member. n is 2
Detecting a shift amount of the mark portion at a position separated from the mark portion; and detecting the shift amount of the mark portion m times immediately before (m is an integer of 2 or more). Correcting the feed amount of the continuous member by a value obtained by dividing an average value of the shift amount of the mark portion by n when it is determined that the shift amount is larger than the shift amount of the mark portion. Manufacturing method of instant photo film unit. 4. The manufacturing method according to claim 1, wherein the continuous member is tact-conveyed, and both side edges of the mask sheet are folded inward to form the continuous member.
A step of detecting a shift amount of the detection portion at a position spaced by a predetermined pitch upstream of a flap seal adhered to two sheets; and n times immediately before (n is an integer of 2 or more) detected Calculating the average value of the shift amount of the detected portion and correcting the position of the flap seal in the direction of conveyance of the continuous member based on the average value. Method. 5. The manufacturing method according to claim 1, wherein the detection portion is shifted between a cutting mechanism that cuts the continuous member at predetermined lengths and a transport mechanism that transports the continuous member by tact. Detecting the amount, calculating the difference between the amount of deviation of the detected part detected immediately before and the amount of deviation of the detected part detected this time, and based on the difference, the cutting part of the continuous member and the Correcting the relative position with respect to the cutting mechanism; and a method for manufacturing an instant photo film unit. 6. The manufacturing method according to claim 2, wherein the operation of the instant photographic film unit is started after the manufacturing operation is stopped.
A method for manufacturing an instant photographic film unit, comprising a step of temporarily returning the continuous member in anticipation of the amount of contraction of the continuous member. 7. The manufacturing method according to claim 2, wherein the detection site is imaged by a CCD camera having a wavelength that does not cover a photosensitive material to be used, and the detection site is illuminated from an illumination unit. Irradiating light having a wavelength that does not cover the photosensitive material to detect the amount of deviation of the detection site, the illuminating unit is turned on only when the line is in operation, while the illumination unit A method for manufacturing an instant photo film unit, wherein the light is turned off when the operation is stopped. 8. A mask sheet having an image frame portion and two sheets having a photosensitive layer on one side are laminated and adhered, and are derived from a developing solution pod disposed at a predetermined position. An instant photographic film unit manufacturing apparatus for obtaining an image by spreading a developing solution between the two sheets, wherein at least one of the mask sheet and the two sheets is continuously connected. A main feed mechanism for tact-transporting the continuous member as a shape member; an adhesion mechanism for bonding the mask sheet and the two sheets to each other in a predetermined lamination state; By cutting,
A cutting mechanism for manufacturing a self-developing instant photographic film unit; and, before cutting, measuring a detection site provided on the continuous member and detecting a difference between the measured detection site and a positioning reference position. And a positioning control mechanism for adjusting a relative position between the continuous member and the processing unit based on the difference. 9. The manufacturing apparatus according to claim 8, wherein the positioning control mechanism is arranged such that n (n is an integer of 2 or more) downstream from a mark forming station for forming the mark portion as the detection site on the continuous member. A) a shift amount detecting means for detecting the shift amount of the mark portion at a position separated by the pitch; and m times (m is an integer of 2 or more) the detected shift amount of the mark portion, and Feed amount correcting means for calculating an average value of the shift amounts and correcting the feed amount of the continuous member by the main feed mechanism based on a value obtained by dividing the average value by n. Manufacturing equipment for photo film units. 10. The manufacturing apparatus according to claim 8, wherein said positioning control mechanism is arranged at an n pitch (n is 2 or more) downstream from a mark forming station for forming a mark portion as said detection portion on said continuous member. (Integer)
A shift amount detecting means for detecting a shift amount of the mark portion, and a shift amount of the mark portion detected immediately before m times (m is an integer of 2 or more) consecutively. And a feed amount correcting unit that corrects the feed amount of the continuous member by the main feed mechanism based on a value obtained by dividing an average value of the shift amount of the mark portion by n when the shift amount is determined to be larger than n. An apparatus for manufacturing an instant photo film unit. 11. A manufacturing apparatus according to claim 8, wherein said positioning control mechanism is provided upstream of a flap seal which constitutes said bonding mechanism and folds both side edges of said mask sheet to be bonded to said two sheets. A shift amount detecting means for detecting a shift amount of the detection portion at a position separated by a predetermined pitch number, and an average value of shift amounts of the detection portion detected immediately before n times (n is an integer of 2 or more). Flap seal position correcting means for calculating and correcting the position of the flap seal in the direction of conveyance of the continuous member based on the average value, the apparatus for manufacturing an instant photo film unit. 12. A manufacturing apparatus according to claim 8, wherein said positioning control mechanism is provided between a cutting mechanism for cutting said continuous member at predetermined lengths and a transport mechanism for tactically transporting said continuous member. A shift amount detecting means for detecting a shift amount of the detected portion; and calculating a difference between a shift amount of the detected portion detected immediately before and a shift amount of the detected portion detected this time, based on the difference. And a cutting portion correcting means for correcting a relative position between the cutting portion of the continuous member and the cutting mechanism. 13. The manufacturing apparatus according to claim 9, wherein said shift amount detecting means is fixed at a predetermined position, and measures a distance from said detected portion to determine said detected portion. An instant photographic film unit manufacturing apparatus, comprising: a reference member for detecting a shift amount of an image. 14. A manufacturing apparatus according to claim 13, wherein said shift amount detecting means has a wavelength at which a photosensitive material to be used has no wavelength and picks up an image of said detection site; An illuminating unit for irradiating light having a wavelength that does not fog and detecting a shift amount of the detection site, and an apparatus for manufacturing an instant photographic film unit. 15. The lighting control unit according to claim 14, wherein the lighting unit turns on the lighting unit only when the line is in operation, and turns off the lighting unit when the operation of the line is stopped. An apparatus for manufacturing an instant photo film unit, comprising: 16. The instant photographic film according to claim 14, wherein a target jig for setting an imaging condition of said CCD camera is provided at a position where said CCD camera is installed. Unit manufacturing equipment.