JP4276767B2 - Method and apparatus for manufacturing instant photographic film unit - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a method and an apparatus for manufacturing an instant photographic film unit for manufacturing a self-developing type instant photographic film unit.
[0002]
[Prior art]
Recently, with the popularization of instant cameras, so-called self-developing type instant photographic film units have been manufactured in large quantities. The instant photographic film unit includes a mask sheet having an image frame portion defining a screen size at the center, a photosensitive sheet having a transparent or opaque support layer coated with a photosensitive layer, and a developing solution between the photosensitive sheet. And a pair of rail members (spacer members) that form a gap for allowing the developing solution to flow between the photosensitive sheet and the transparent sheet. A developing solution pod (container) in which the developing solution is accommodated and a trap material (excess liquid collecting member) are attached to the mask sheet corresponding to both side edges of the image frame portion of the mask sheet. .
[0003]
The instant photographic film unit has various configurations. For example, a photosensitive sheet is bonded to the upper surface of the mask sheet, and a transparent sheet is bonded to the upper surface of the photosensitive sheet via a rail material. It is known that a developing solution pod and a trap material are wrapped around both side edges orthogonal to the rail material and folded on the transparent sheet. In addition, the photosensitive sheet and the transparent sheet are arranged in a predetermined stacking order on the mask sheet, and a rail material is stuck on the transparent sheet from the photosensitive sheet to the transparent sheet, and the mask sheet is orthogonal to the rail material. In addition, a developing solution pod and a trap material attached are known.
[0004]
Therefore, various proposals have been made for manufacturing this type of instant photographic film unit. For example, Japanese Patent Publication No. Sho 62-55772 discloses the manufacturing method. In this prior art, as shown in FIG. 17, a rail material formed by cutting the rail material web 4 after the sheets 1 and 2, one of which is a photosensitive sheet and the other of which is a transparent sheet, is joined at the joining portion 3. 5 is heat sealed across the sheet 1 and over a sheet 2 wider than the sheet 1.
[0005]
The joined sheets 1 and 2 are cut along the center line of the rail material 5 at the cutting portion 6, then bonded onto the mask sheet 8 at the heat sealing portion 7, and further at the peripheral joining station 9, the mask sheet 8. The entire edge of the sheet 2 is bonded around the image area opening. Next, after the treatment liquid pod 11 and the trap material 12 are bonded to both sides of the mask sheet 8 at the attachment station 10, the treatment liquid pod 11 and the trap material 12 are attached to the mask sheet 8 at the folding station 13. Folds on both edges. 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]
[Problems to be solved by the invention]
However, in the above-described prior art, the sheets 1 and 2 and the mask sheet 8 are exposed to temperature changes and humidity changes due to the heat sealing process. In particular, the photosensitive sheet is easily affected by humidity, and thus during the manufacturing process. Shrinkage may occur. In the above prior art, when the sheet 1 or the sheet 2 contracts, the mask sheet 8 to which the sheet 1 or the sheet 2 is attached is displaced in the transport direction, and the opening formed in the mask sheet 8 is displaced. It has been pointed out that it is difficult to attach the treatment liquid pod 11 and the trap material 12 to an accurate position, and the cut position of each unit also varies. As a result, there is a problem that a high-quality instant photographic film unit cannot be efficiently manufactured.
[0007]
Moreover, in said prior art, the whole installation is arrange | positioned in the dark room, and the attachment operation | work etc. of the sheet | seats 1, 2, the rail material web 4, and the mask sheet | seat 8 are performed in the dark room. For this reason, it has been pointed out that the entire operation is considerably complicated, and the efficiency of manufacturing the instant photo film unit cannot be easily achieved.
[0008]
The present invention solves this type of problem, and a method for manufacturing an instant photographic film unit capable of easily and accurately performing positioning processing of the continuous member by controlling conveyance of the continuous member, and An object is to provide an apparatus.
[0009]
In addition, the present invention provides a method and apparatus for manufacturing an instant photographic film unit, in which a member that does not need to be shielded is disposed in a bright room, thereby facilitating the mounting operation of the member and improving the efficiency of the entire operation. The purpose is to provide.
[0010]
[Means for Solving the Problems]
In the method and apparatus for producing an instant photo film unit according to the present invention, The light shielding unnecessary member including at least the mask sheet is a continuous member, and the light shielding unnecessary member is disposed in the bright room and automatically delivered to the dark room. After the mask sheet and the two sheets are bonded together in a predetermined laminated state, they are cut. What Self-developed instant photo film unit Manufactured It is. For this reason , Mask sheet The work for attaching the light shielding unnecessary member including the light shielding member is performed in the bright room, the workability of the light shielding unnecessary member is effectively improved, and the entire manufacturing process of the instant photo film unit can be facilitated quickly and efficiently. It is.
[0015]
Further, since the mask sheet and the two sheets are supplied as the first to third continuous members, the overlapping process and the pasting process of each member are simplified, and the entire manufacturing process is efficiently performed with simple control. Carried out. At that time, after the second continuous member having the photosensitive layer is bonded on the first continuous member as the mask sheet with the photosensitive surface facing upward, the third continuous member is placed on the second continuous member. Is glued.
[0016]
Further, the first to third continuous members are set to have the same total length or an integral multiple, and the path lengths of the first to third continuous members are set, so that the first The joint portions of the first to third continuous members are concentrated in or near the same instant photographic film unit.
[0017]
Thereby, it is possible to gather each joint part which is a defective part in a single instant photographic film unit, and it is possible to effectively reduce the waste part due to joining. In addition, the effective lengths of the first to third continuous members are finished at the same timing, and the replacement operation and the joining process of the first to third continuous members are performed almost simultaneously. Therefore, it is possible to easily perform the preparation work for attaching the first to third continuous members in a short time and to improve the efficiency of the entire manufacturing process.
[0018]
Furthermore, when the light shielding unnecessary member is fed out, the light shielding unnecessary member is introduced from the bright room to the dark room through the light shielding mechanism. The light shielding mechanism includes a light shielding box, and first and second pass rollers that are disposed in the light shielding box and each peripheral surface wraps a light shielding unnecessary member and provides a light shielding step portion on the light shielding unnecessary member. . As a result, the external light traveling straight in the light shielding box is reliably shielded by the light shielding step portion provided in the light shielding unnecessary member, and the external light is surely prevented from being irradiated to the dark room with a simple configuration. be able to.
[0019]
Here, two sets of first and second pass rollers are arranged in the light shielding box, and a slit-shaped web chute is arranged on the upstream side of each of the first and second pass rollers. For this reason, the entrance of external light to the dark room is prevented as much as possible, and more reliable light shielding is achieved.
[0020]
The darkroom includes a plurality of light-shielding doors that can be freely opened and closed. For example, the inspection work can be easily performed by simply opening the light-shielding doors corresponding to necessary parts for inspection or the like.
[0021]
In addition, by chamfering the corners of the cut instant photo film units, the stacking and transporting operations of each instant photo film unit are smoothly performed. Further, a thin portion for folding is formed on the mask sheet with a predetermined depth in the thickness direction of the mask sheet corresponding to both side edges of the image frame portion. Therefore, the folding process of the first member is performed smoothly and reliably.
[0022]
Furthermore, since the deformed portion constituting the air passage is formed in the mask sheet corresponding to the attachment position of the surplus liquid reservoir member, a desired air passage can be easily and reliably provided in the instant photo film unit. it can.
[0023]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 1 is an exploded perspective view of an instant photographic film unit 20 manufactured by the manufacturing method according to the first embodiment of the present invention, and FIG. 2 is a perspective view of the instant photographic film unit 20.
[0024]
The instant photographic film unit 20 includes 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 pair of spacer members stacked on the photosensitive sheet 30 corresponding to the photosensitive layer side. 32 and a transparent cover sheet 36 that is overlaid on the spacer member 32 and has an exposure surface 34.
[0025]
Folds (thin portions) 38a and 38b are formed at both ends of the development direction (arrow A direction) of the mask sheet 24, respectively, and the developing solution pod (container) 40 and the excess liquid reservoir are outside the folds 38a and 38b. A trap material 42 as a member is adhered, and an undersheet 44 is attached to the inside of the fold line 38a.
[0026]
The photosensitive sheet 30, the spacer member 32, and the cover sheet 36 are overlapped and bonded to the mask sheet 24. After the under sheet 44 is bonded to the mask sheet 24, both ends of the mask sheet 24 are connected to the folds 38a and 38b. The instant photographic film unit 20 is formed by bending and bonding the mask sheet 24 onto the cover sheet 36. In this instant photographic film unit 20, an air passage 45 is provided in a folded portion on the trap material 42 side.
[0027]
The mask sheet 24 is made of colored polyethylene terephthalate (PET), and an adhesive layer 46 for heat sealing is provided on one surface. The spacer member 32 is provided with a light shielding layer on one surface of transparent or colored PET, and a heat sealing adhesive layer on both surfaces thereof.
[0028]
As shown in FIG. 3, the instant photo film unit 20 has outer dimensions H1 and H2 set to be substantially equal to the outer dimensions of the ID card shown in ISO 7810 or JIS X6301. 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 (deployment direction) is set to 85.6 mm. Chamfered portions 48 are formed at the four corners of the instant photo film unit 20.
[0029]
The instant photo film unit 20 has a predetermined assembly accuracy 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 distance from the reference lines O and O ′ passing through both end portions of the image frame portion 22 to both end portions of the trap material 42. X1 and X1 ′ are defined. Distances X2, X2 'from the reference lines O, O' to both ends of the developing solution pod 40, distances X3, X3 'from the reference lines O, O' to the inner ends of the spacer members 32, 32, and the reference The distances X4 and X4 'from the lines O and O' to both ends of the instant photo film unit 20 are defined. The respective precisions are as follows: distance X1, X1 ′ is within ± 0.5 mm, distance X2, X2 ′ is within ± 0.3 mm, distance X3, X3 ′ is within ± 0.5 mm, and distance X4, X4 ′ is set within a range of ± 0.5 mm.
[0030]
FIG. 4 is a schematic explanatory view of a method for manufacturing the instant photo film unit 20 according to the first embodiment of the present invention. The first continuous member 50 constituting the mask sheet 24 is conveyed every two pitches in the arrow X direction perpendicular to the developing direction (arrow A direction) of the mask sheet 24, and continuously travels upstream in the conveying direction. For example, a crease station 52 that uses, for example, a heated steel piece or the like, is provided for forming the folds 38a and 38b at both side edges of the first continuous member 50.
[0031]
A trap material attachment station 54 for attaching the two trap materials 42 to one side edge of the first continuous member 50 sequentially at the same stop (substantially simultaneously) from the folding line station 52 toward the downstream side, A mark forming station 55a for forming a U-shaped mark portion 53 as a positioning portion corresponding to the inside of every other image frame portion 22 in the first continuous member 50, and a concave portion (deformation that becomes an air passage when deployed) An air hole forming station 55b for forming a part), a pod material attaching station 56 for attaching the two developing solution pods 40 to the other side edge of the first continuous member 50, and the mark part. A mark detection station 57a for detecting the position of 53, and a strike for forming the two image frame portions 22 on the first continuous member 50 at the same stop time. And yellow station 59 is located.
[0032]
A first joining station for joining the second continuous member 58 constituting the photosensitive sheet 30 and the continuous sheet 60 constituting the undersheet 44 on the first continuous member 50 is provided downstream of the punching station 59. 62 is 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 corresponding to the two image frame portions 22 of the first continuous member 50 is performed. A station 64 is provided.
[0033]
On the downstream side of the first thermal bonding station 64, a second thermal bonding station 66 for temporarily bonding two rail members 65 having a width twice that of the spacer member 32 corresponding to both sides of the image frame portion 22. Is provided. A heat seal adhesive is applied to both surfaces of the rail member 65 in advance. A second joining station 70 for attaching a third continuous member 68 constituting the cover sheet 36 is provided on the downstream side of the second thermal bonding station 66, and a rail member 65 is provided on the downstream side of the second joining station 70. Thus, a third thermal bonding station 72 for bonding the third continuous member 68 to the second continuous member 58 is provided.
[0034]
On the downstream side of the third thermal bonding station 72, a folding station 74 that folds the side edges of the first continuous member 50 to wrap the trap material 42 and the developing solution pod 40, and the folded first continuous member. A fourth thermal bonding station 76 is provided for thermally bonding the 50 side edges together across the two instant photographic film units 20. On the downstream side of the fourth thermal bonding station 76, a cutting station 78 is provided for cutting out the instant photo film units 20 one by one by sequentially cutting and corner cutting at a substantially middle portion of the rail member 65.
[0035]
On the downstream side of the cutting station 78, a stacking station 80 for automatically stacking a predetermined number of instant photo film units 20, for example, 10 sheets, and the instant photo film unit 20 stacked in the stacking station 80 are provided. Once inverted, a pack station 84 is provided that automatically accommodates the film pack 82.
[0036]
In the first embodiment, the length (outer dimension H1) in the direction perpendicular to the developing direction (arrow A direction) of the outer dimension of the instant photo film unit 20 is set as the unit pitch of conveyance, and the fourth thermal bonding station from the upstream side. In the process up to 76, tact transfer is performed for each of a plurality of pitches (for example, every 2 pits) that can increase the stop time and enable high-speed production, while the cutting station 78 performs tact transfer for each pitch that is advantageous for corner cut processing. To do.
[0037]
5 and 6 are schematic configuration explanatory views of a manufacturing system (manufacturing apparatus) 90 for carrying out the manufacturing method of the instant photographic film unit 20 according to the first embodiment.
[0038]
The manufacturing system 90 includes a bright room 92 and a dark room 94. In the bright room 92, a mask sheet material supply unit (a light shielding unnecessary member) for feeding out the first continuous member 50, which is a light shielding unnecessary member, from the roll. A supply station) 96 is provided, and a folding line station 52, a trap material attachment station 54, a mark formation station 55a, an air hole formation station 55b, and a pod material attachment station 56 are provided downstream of the mask sheet material supply unit 96.
[0039]
As shown in FIG. 4, the trap material mounting station 54 is provided with two trap material rolls 42a and 42b. The trap material rolls 42a and 42b are fed out at predetermined intervals by a trap material cutter (not shown). The two trap members 42 are obtained by cutting into two pieces. A plurality of developing solution pods 40 are respectively supplied to the pod material mounting station 56 in two rows, and two developing solution pods 40 can be supplied to the first continuous member 50 simultaneously.
[0040]
A mark forming station 55 a provided between the trap material attaching station 54 and the pod material attaching station 56 is provided with a mark punch 98, and the mark punch 98 is substantially U-shaped on the first continuous member 50. A mark portion 53 is formed. The air hole forming station 55b provided in the same station as the mark forming station 55a forms a recess at the center of the edge of the first continuous member 50 on the trap material mounting side via a press (not shown).
[0041]
A first free loop 100 for cutting the tension acting on the first continuous member 50 is provided between the folding line station 52 and the trap material mounting station 54, and the pod material mounting station 56 and the mark detection station. A second free loop 102 is provided between 57a and 57a. On the upstream side of the second free loop 102, a master drum 106 constituting the first conveying means 104 is disposed, and the first continuous member 50 is fixed between the first free loop 100 and the pod material mounting station 56. Control is performed so as to carry out tact conveyance for each pitch number.
[0042]
The dark room 94 is provided from both sides of the bright room 92 upward, and a light shielding mechanism 108 for shielding the dark room 94 from the bright room 92 is disposed on the downstream side of the second free loop 102. The light shielding mechanism 108 includes a light shielding box 110, a pair of support rollers 112a and 112b disposed in the light shielding box 110 and supporting the lower side of the first continuous member 50, and the support rollers 112a and 112b. A pressing roller 114 that is positioned and presses the upper part of the first continuous member 50 downward to curve the first continuous member 50. A mark detection station 57 a is disposed in the vicinity of the downstream side of the light shielding mechanism 108, and the mark detection station 57 a includes a CCD camera 116 a for detecting the mark portion 53.
[0043]
The dark room 94 upstream of the bright room 92 is provided with a photosensitive material supply unit 118 for feeding the second continuous member 58 from the roll. The second continuous member 58 fed out from the photosensitive material supply unit 118 passes through the upper part of the mask sheet material supply unit 96 and is sent to the first joining station 62, and also enters the bright room 92 above the first joining station 62. The undersheet material supply unit 120 for supplying the continuous sheet 60 that is a light-shielding unnecessary member is disposed. On the downstream side of the undersheet material supply unit (light shielding unnecessary member supply station) 120, a rail material supply unit (light shielding unnecessary member) for supplying a set of rail materials 65 as light shielding unnecessary members to the second thermal bonding station 66. (Supply station) 122 is provided, and on the downstream side of the rail material supply part 122, a cover sheet material supply part (light shielding unnecessary) for supplying the second continuous station 68, which is a light shielding unnecessary member, to the second joining station 70. A member supply station 124 is arranged.
[0044]
The folding station 74 is provided with a former 126 for folding both side edges of the first continuous member 50 inward, and the first to third thermal bonding stations 64, 66, and 72 are each thermally bonded. Two sets of containers 128, 130 and 132 are installed so that their positions can be adjusted in the transport direction. The fourth heat bonding station 76 is provided with a flap seal 134 that is movable in the conveying direction, and on the downstream side of the flap seal 134, the tact from the second free loop 102 to the fourth heat bonding station 76 is provided. A second transport unit 136 is provided for transporting every two pitches.
[0045]
The second transport unit 136 includes a main feed drum 138, and the main feed drum 138 is controlled so that the transport pitch interval can be arbitrarily changed according to the position of the mark portion 53 detected by the mark detection station 57a. A cut feed drum 142 is disposed on the downstream side of the main feed drum 138 via a third free loop 140. The cut feed drum 142 is controlled so that the cutting process at the cutting station 78 is tact-conveyed for every pitch.
[0046]
As shown in FIG. 6, frame portion detection stations 57b and 57c for detecting the image frame portion 22 are provided immediately upstream of the fourth thermal bonding station 76 and immediately upstream of the cutting station 78, and this frame portion detection station 57b. 57c are provided with CCD cameras 116b and 116c. The master drum 106, the flap seal 134, the main feed drum 138, and the cut feed drum 142 are connected to servo motors 150, 151, 152, and 154, respectively. The servo motors 150, 151, 152, and 154 are connected to servo drivers 156, 157, Synchronous control is performed by the controller 162 via 158 and 160. The cutting station 78 is driven by a servo motor 164, and the servo motor 164 is controlled by a controller 162 via a servo driver 166.
[0047]
Cam driving means 167 for synchronously driving the trap material attaching station 54, the mark forming station 55a, the air hole forming station 55b, the pod material attaching station 56, the punching station 59, and the first to fourth thermal bonding stations 64, 66, 72 and 76. The cam driving means 167 is driven and controlled by a servo motor 168. The servo motor 168 is connected to the controller 162 via the servo driver 169. The controller 162 has a function of inputting image information from the CCD cameras 116 a to 116 c and performing various controls in the manufacturing system 90.
[0048]
The operation of the manufacturing system 90 configured as described above will be described below in relation to the manufacturing method according to the first embodiment.
[0049]
The manufacturing system 90 is driven and controlled via the controller 162, and the roll-shaped first continuous member 50 set in the mask sheet material supply unit 96 is fed out (step S1 in FIG. 7). First, the first continuous member 50 is continuously run at the folding line station 52, and after the creases 38a and 38b are formed on both side edges (step S2), the first free loop 100 is subjected to tension cut. Next, under the driving action of the master drum 106, the first continuous member 50 is tact-conveyed every two pitches in the arrow X direction.
[0050]
Between the first free loop 100 and the second free loop 102, the first continuous member 50 is tact-conveyed for each preset length (2 pitches), and the trap material attaching station 54, the mark forming station 55a, The air holes are sequentially conveyed to the air hole forming station 55b and the pod material mounting station 56. In the trap material mounting station 54, as shown in FIG. 4, a pair of trap material rolls 42a and 42b are unwound and cut into predetermined width dimensions, respectively, and then one side edge of the first continuous member 50. Two trap materials 42 are separated from each other by a predetermined distance and pasted at the same stop (substantially simultaneously) (step S3).
[0051]
At the mark forming station 55a, mark portions 53 are formed at positions corresponding to the inside of every other image frame portion 22 of the first continuous member 50 via the mark punch 98, and at the air hole forming station 55b, A concave portion is formed in the central portion of the edge of the first continuous member 50 on the trap material attachment side by a press (not shown) (step S4). Further, at the pod material attachment station 56, at the same stop time, the two developing solution pods 40 are attached to the other side edge portion of the first continuous member 50 with a predetermined distance therebetween (step S5). The trap material 42 and the developing solution pod 40 are sealed by a heat sealer (not shown) that is in contact with the lower surface side of the first continuous member 50.
[0052]
On the downstream side of the master drum 106, the first continuous member 50 is tact-conveyed every two pitches in the direction of the arrow X under the driving action of the main feed drum 138. Are carried into the dark room 94 through the light shielding mechanism 108. In the light shielding mechanism 108, a predetermined curved shape is imparted to the first continuous member 50 by the support rollers 112 a and 112 b and the pressing roller 114, so that the inside of the bright room 94 can be effectively shielded from light.
[0053]
The first continuous member 50 carried into the dark room 94 from the light shielding box 110 constituting the light shielding mechanism 108 is conveyed to the mark detection station 57a, and the mark portion 53 is detected via the CCD camera 116a. The position of the mark portion 53 is detected from the image information of the mark portion 53 by the CCD camera 116a. The controller 162 calculates the detected position based on the preset information, the servo motor 152 is driven and controlled via the servo driver 158, and the pitch feed length of the main feed drum 138 is adjusted (step S7).
[0054]
Next, at the punching station 59, the two image frame portions 22 are formed on the first continuous member 50 at the same stop time (step S8), and at the first joining station 62, the photosensitive material supply portion 118 and the undersheet material supply portion 120 are formed. The second continuous member 58 and the continuous sheet 60 are fed out from the second continuous member 58 and the second continuous member 58 and the continuous sheet 60 are joined onto 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 block the two image frame portions 22 (step S9).
[0055]
Further, the two rail members 65 are fed out from the rail member supply unit 122 in a band shape, and are cut into predetermined lengths. Each rail member 65 is thermally bonded onto the second continuous member 58 and the continuous sheet 60 corresponding to both sides of the image frame portion 22 at the second thermal bonding station 66 (step S10). Next, the third continuous member 68 arranged in a roll shape is fed out to the cover sheet material supply unit 124, and the third continuous member 68 is joined onto the second continuous member 58 at the second joining station 70. After that, the second and third continuous members 58 and 68 are thermally bonded via the rail member 65 at the third thermal bonding station 72 (step S11).
[0056]
Proceeding to the folding station 74, both side edges of the first continuous member 50 are folded inward along the folds 38 a and 38 b via the former 126, so that the trap material 42 and the developing solution pod are formed at both side edges. After 40 is wrapped (step S12), both side edges are thermally bonded via the flap seal 134 at the fourth thermal bonding station 76 (step S13). The flap seal 134 can seal the specified position while keeping the seal position and the relative position of the image frame portion 22 constant by detecting and moving the image frame portion 22 at the frame detection station 57b. .
[0057]
The joined body in which the first to third continuous members 50, 58 and 68 are bonded to each other in a predetermined laminated state is transferred from the main feed drum 138 to the cut feed drum 142 via the third free loop 140. Each pitch is sent to the cutting station 78 while being tact-conveyed in the direction of the arrow X. In this cutting station 78, the four corners of the joined body are cut while being chamfered (step S14), and the instant photo film units 20 are formed one by one. The instant photo film unit 20 is stacked by a predetermined number at the stacking station 80 (step S15), then inverted and sent to the pack station 84, and automatically accommodated in the film pack 82 (step S16). ).
[0058]
As described above, in the first embodiment, the mask sheet 24, the photosensitive sheet 30, and the cover sheet 36 are bonded to each other as the first to third continuous members 50, 58, and 68, respectively, in a predetermined laminated state. The instant photographic film unit 20 is manufactured by cutting integrally. For this reason, the configuration and control of the entire manufacturing system 90 can be simplified, and the manufacturing cost can be effectively reduced.
[0059]
Further, in the first embodiment, the manufacturing system 90 provides the second and third free loops 102 and 140 that are at least one free loop in the conveyance area where the positioning of the first continuous member 50 is necessary. It is possible to efficiently manufacture the high-quality instant photo film unit 20 and to speed up the entire manufacturing process of the instant photo film unit 20.
[0060]
That is, among the first to third continuous members 50, 58 and 68, in particular, the second continuous member 58 constituting the photosensitive sheet 30 is likely to shrink due to a temperature change or a humidity change due to the thermal bonding process. Therefore, the amount of contraction of the second continuous member 58 is relatively small after the second continuous member 58 is bonded to the first continuous member 50 at the first thermal bonding station 64 until the cutting station 78 is reached. It will be a big value. For this reason, the first continuous member 50 to which the second continuous member 58 is bonded may be displaced in the X direction as the second continuous member 58 contracts.
[0061]
At that time, as shown in FIG. 3, the instant photo film unit 20 has various dimensions set based on the image frame portion 22, and various processes in the manufacturing system 90 are performed when the image frame portion 22 is positioned. It is a standard. Therefore, when the first continuous member 50 is displaced in the transport direction due to the contraction of the second continuous member 58, the positions of the developing solution pod 40, the trap material 42, or the spacer member 32 are changed with respect to the image frame portion 22. The manufactured instant photo film unit 20 may become a defective product. In particular, in the manufacturing system 90, the conveyance distance in the direction of the arrow X is long, the error accumulated for each pitch increases, and the first continuous member 50 is likely to be displaced, and the operation is interrupted. As a result, the contraction of the second continuous member 58 becomes remarkable, and the first continuous member 50 is displaced.
[0062]
Therefore, in the first embodiment, the second free loop 102 is provided in the conveyance area where the positioning of the first continuous member 50 is required, and the upstream side of the second free loop 102 is driven by the master drum 106. While the first continuous member 50 is tact-conveyed at a constant tension and a constant pitch, the trap material 42 is attached to the first continuous member 50, the mark portion 53 is formed, and the developing solution pod 40 is attached. Is called.
[0063]
On the other hand, on the downstream side of the second free loop 102, the mark detection station 57a detects the position of the mark portion 53 formed on the first continuous member 50, and the main feed drum 138 is driven and controlled based on the detection result. The pitch feed amount of the first continuous member 50 is controlled in units of 10 μm, for example. As a result, the trap material 42, the developing solution pod 40, and the rail material 65 can be securely attached to the image frame portion 22 with desired dimensional accuracy, and the high-quality instant photo film unit 20 can be efficiently used. The advantage that it can be manufactured is obtained.
[0064]
Note that the transport distance from the punching station 59 to the fourth thermal bonding station 76 is relatively long, and the flap seal 134 is moved in the transport direction for each tact to accurately correspond to the image frame portion 22. It becomes possible to perform heat bonding treatment. Further, the first to third thermal bonding stations 64, 66, and 72 are adjusted by adjusting the positions of the thermal bonders 128, 130, and 132 in the direction opposite to the arrow X direction in accordance with the contraction of the second continuous member 58. The processing at is performed with high accuracy.
[0065]
Furthermore, in the first embodiment, the mask sheet 24, the photosensitive sheet 30 and the cover sheet 36 are bonded to each other in a predetermined laminated state in the state of the first to third continuous members 50, 58 and 68, respectively, and then cut. The instant photographic film unit 20 is manufactured by integrally cutting at the station 78. For this reason, a complicated and expensive control device for positioning and adhering sheets (for example, the photosensitive sheet 30 and the cover sheet 36) separated during the process onto a continuous member (for example, the first continuous member 50) is unnecessary. Thus, as compared with the conventional example, the entire configuration of the manufacturing system 90 is simplified, and the manufacturing cost can be effectively reduced.
[0066]
Furthermore, in the first embodiment, in the first to fourth thermal bonding stations 64, 66, 72 and 76, the tact time required for thermal bonding is relatively long, and a plurality of pitches, for example, 2 pitches are used. By setting the conveyance length to one time, the thermal bonding process is efficiently performed, and in the cutting step, a continuous cutting process is performed by setting one pitch to one conveyance length. As a result, there is an advantage that the entire manufacturing process of the instant photo film unit 20 can be effectively speeded up.
[0067]
In the first embodiment, the cutting station 78 is provided with chamfered portions 48 at the four corners when the instant photo film unit 20 is cut. For this reason, when the instant photographic film units 20 that are sequentially manufactured are stacked on the stacking station 80, or when each instant photographic film unit 20 is transported, it is possible to effectively prevent the occurrence of stacking failure and transport failure due to corner catches. It becomes possible to do.
[0068]
Furthermore, in the first embodiment, the first continuous member 50, the continuous sheet 60, and the third continuous member 68 constituting the mask sheet 24, the under sheet 44, and the cover sheet 36, which are members that do not require light shielding, It is arranged in the bright room 92 in a state wound in a roll shape. For this reason, compared with the case where each light shielding unnecessary member is arrange | positioned in the dark room 94, the workability | operativity of the said light shielding unnecessary member improves at a stretch, and the whole manufacture operation | work of the instant photo film unit 20 is performed efficiently and rapidly. The effect is obtained.
[0069]
In the first embodiment, the master drum 106 is used for the tact transfer of the first continuous member 50 from the first free loop 100 to the pod material mounting station 56. Alternatively, a conveying means having a gripper and a fixed clamp can be used. The gripper has a function of gripping the side portion of the first continuous member 50 and feeding the first continuous member 50 in the direction of the arrow X at a constant pitch number, while the fixed clamp is used when the gripper moves backward. The first continuous member 50 has a function of fixing the first continuous member 50 so as not to move. By using the above gripper and fixed clamp, there is an advantage that the space occupied by the conveying means can be reduced as compared with the space occupied by the master drum 106.
[0070]
FIG. 8 is a schematic explanatory view of a manufacturing method of an instant photographic film unit 20 according to the second embodiment of the present invention, and FIGS. 9 and 10 show a manufacturing system (manufacturing apparatus) for carrying out the manufacturing method. FIG. Note that the same components as those in the manufacturing system 90 according to the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.
[0071]
In the manufacturing system 170, one free loop 172 is provided in the conveyance area where the first continuous member 50 needs to be positioned. On the upstream side of the free loop 172, the first continuous member 50 is tact-conveyed via the main feed drum 176 constituting the first conveying means 174, while on the downstream side of the free loop 172, the second conveying means 178 is conveyed. The first continuous member 50 is tact-conveyed via a cut feed drum 180 constituting the above. In this tact conveyance, the upstream side of the free loop 172 is set to 2 pitches or 2 pitches or more, while the downstream side of the free loop 172 is set to 1 pitch or 1 pitch or more.
[0072]
A mark forming station 55a and an air hole forming station 55b, a trap material mounting station 54, a pod material mounting station 56, and a punching station 59 are sequentially arranged from the folding line station 52 toward the downstream side.
[0073]
As shown in FIG. 11, the mask sheet material supply unit 96 includes a rewinding shaft 182 on which the roll-shaped first continuous member 50 is mounted, and the rewinding shaft 182 is illustrated to apply brake torque. Brake means is provided. The mask sheet material supply unit 96 is provided with remaining amount detecting means 184 for detecting the remaining amount of the roll-shaped first continuous member 50 loaded on the rewinding shaft 182, and this mask sheet material supply A joining device 186 is provided for joining the terminal end of the first continuous member 50 fed out from the portion 96 and the tip of the first continuous member 50 newly loaded in the mask sheet material supply unit 96.
[0074]
In the folding line station 52, a folding line means 192 including a heater 188 and a temperature sensor 190 is disposed so as to be displaceable, and a driving roller 194 is provided to face the folding line means 192 so as to be rotatable in the arrow direction. An electrostatic removing unit 196 is provided on the downstream side of the folding line station 52, and a feed roller 198 is disposed downstream of the electrostatic removing unit 196.
[0075]
The feed roller 198 is composed of a suction roller, and is driven and controlled by a servo motor 200. The servo motor 200 is connected to a controller 162 via a servo drive 202 (see FIG. 10). The feed roller 198 has a function of continuously running the first continuous member 50, and a free loop 100 is provided on the downstream side of the feed roller 198.
[0076]
As shown in FIG. 11, the free loop 100 is formed by a suction box 204, and the position of the free loop 100 is detected, for example, in four stages. Specifically, there are four positions, a lower limit position, a constant speed lower limit position, a constant speed upper limit position, and an upper limit position, and the feed roller 198 is rotated at a low speed within the range of the lower limit position and the constant speed lower limit position. Between the constant speed lower limit position and the constant speed upper limit position Constant The first continuous member 50 is continuously fed by being rotated at a high speed and further controlled to rotate at a high speed between a constant speed upper limit position and an upper limit position. On the downstream side of the free loop 100, a joining detection means 206 for detecting the joining portion of the first continuous portion 50 is disposed.
[0077]
A light blocking mechanism 210 is disposed between the bright room 92 and the dark room 94. As shown in FIGS. 12 and 13, the light shielding mechanism 210 includes a light shielding box 212 disposed on the entrance side of the dark room 94, and the light shielding box 212 supports a lower portion of the first continuous member 50. One pass rollers 214a and 214b and second pass rollers 216a and 216b that support the upper side of the first continuous member 50 and wrap with the first pass rollers 214a and 214b are disposed.
[0078]
Each of the first and second pass rollers 214a and 216a wraps around both surfaces of the first continuous member 50, and the first continuous member 50 is provided with a light shielding step portion S. The step portion S is in the range of 3 mm to 7 mm, and the first and second pass rollers 214b and 216b are similarly configured. Slit-like web chutes 218a and 218b are disposed upstream of the first and second pass rollers 214a and 216a and upstream of the first and second pass rollers 214b and 216b, respectively. In the web chutes 218a and 218b, slit-shaped passages 220a and 220b are formed, and a leading tapered portion 222 is formed on the inlet side of the passage 220b.
[0079]
The developing solution pod 40 and the trap material 42 are affixed to the first continuous member 50 carried into the light shielding box 212, and the first pass rollers 214a and 214b and the second pass rollers 216a and 216b perform the above. The first continuous member 50 is configured to avoid the peeling of the developing solution pod 40 and the trap material 42 by reducing the curvature of the first continuous member 50 and reducing the range of the bending action. The lengths of the first pass rollers 214 a and 214 b and the second pass rollers 216 a and 216 b are set so as to be separated from the developing solution pod 40 and the trap material 42. A light shielding door 224 is mounted on the upper side of the light shielding box 212 through a hinge 226 so that the light shielding door 224 can be opened and closed. The light shielding door 224 can be fixed to the light shielding box 212 through an opening / closing handle 228.
[0080]
FIG. 14 shows the configuration of the cover sheet material supply unit 124. The same components as those of the mask sheet material supply unit 96 shown in FIG. 11 are denoted by the same reference numerals, and detailed description thereof is omitted.
[0081]
The cover sheet material supply unit 124 is provided with a rewinding shaft 230 for loading the third continuous member 68 in a roll shape, and the rewinding shaft 230 is driven and controlled by a servo motor 232. A joining deviation detecting unit 234 is disposed downstream of the joining unit 186, and a path forming unit 236 for adjusting the path length of the third continuous member 68 is provided downstream of the joining deviation detecting unit 234. The pass forming unit 236 includes a plurality of pass rollers 238, a dancer roller 240, and a clamper 242.
[0082]
A light shielding mechanism 244 is disposed on the downstream side of the electrostatic removal unit 196. The light shielding mechanism 244 includes a light shielding box 246, in which a slit 248 that opens to the bright room 92 and a slit 250 that opens to the dark room 94 are formed. A first pass roller 252 and a second pass roller 254 are arranged in the light shielding box 246 so as to wrap the third continuous member 68 and deform the third continuous member 68 into an S shape.
[0083]
As shown in FIG. 9, the undersheet material supply unit 120 and the rail material supply unit 122 are configured in the same manner as the cover sheet material supply unit 124, and detailed description thereof is omitted.
[0084]
First continuous member 50 mounted on mask sheet material supply unit 96, second continuous member 58 mounted on photosensitive supply unit 118, continuous sheet 60 mounted on undersheet material supply unit 120, and cover sheet The third continuous member 68 attached to the material supply unit 124 is set so that the total length used is the same or an integral multiple of each other, and each joining site is in or near the same instant photo film unit 20. Each path length is set so as to be assembled.
[0085]
Specifically, for example, the first continuous member 50 and the third continuous member 68 are set to have the same overall length, and the mask sheet material supply unit 96 and the cover sheet material supply unit 124 are connected to the first continuous member 50 and the third continuous member 68. The path length to the 2nd joining station 70 which is the adhesion position of the 1st and 3rd continuous members 50 and 68 is set to the same length.
[0086]
The free loop 172 is formed by the suction box 260, and the curvature radius of the free loop 172 is set to 200 mm to 250 mm or less in order to prevent the development solution pod 40 and the trap material 42 from peeling off. The suction pressure of the suction box 260 is set to -6 Kpa to -10 Kpa, while the suction pressure of the suction box 204 is set to -0.2 Kpa to -0.4 Kpa. The main feed drum 176 and the cut feed drum 180 are constituted by suction drums, the suction angles are each set to 90 °, and the suction pressure is set to −12 Kpa to −13 Kpa.
[0087]
As shown in FIG. 15, the dark room 94 is composed of a dark box part 270, and the dark box part 270 is provided with a plurality of light-shielding doors 272 that can be opened and closed in order to inspect necessary portions in the dark room 94. It has been. Each light shielding door 272 is attached to the dark box portion 270 via a hinge 273 so as to be freely opened and closed, and can be fixed to the dark box portion 270 via a plurality of opening and closing handles 274.
[0088]
The manufacturing system 170 configured as described above is operated based on the flowchart shown in FIG. 7 and the timing chart shown in FIG. 16 in substantially the same manner as the manufacturing system 90 according to the first embodiment. At that time, after the first continuous member 50 is tact-conveyed for every predetermined number of pitches via the main feed drum 176 from the mark forming station 55a and the air hole forming station 55b to the fourth thermal bonding station 76. The instant photographic film units 20 are cut one by one by the cutting station 78 by being conveyed, for example, every pitch through the cut feed drum 180.
[0089]
Next, after a predetermined number of the instant photo film units 20 are stacked at the stacking station 80, they are inverted together and automatically stored in the film pack 82 at the packing station 84.
[0090]
By the way, during normal operation excluding abnormal times such as machine stoppage, the pitch between the image frame portion 22 and other members (for example, the developing solution pod 40 and the trap material 42) due to the contraction of the first continuous member 50 and the like. The relative position shift in the transport direction fluctuates gently. At that time, the feed amount of the first continuous member 50 and the second and third continuous members 58 and 68 stacked thereon is controlled by the feed amount of the main feed drum 176 following the wavy change. . For this reason, the relative positions of the image frame portion 22 of the first continuous member 50 and other members in the pitch conveyance direction can be adjusted appropriately.
[0091]
More specifically, when the first continuous member 50 and the like are contracted, the trap material is attached from the uppermost stream where the positioning of the first continuous member 50 is necessary, that is, from the mark forming station 55a and the air hole forming station 55b. At the station 54, and further from the pod material mounting station 56 to the punching station 59, the amount of variation is corrected so as to always have a set constant pitch, thereby controlling the conveyance of the first continuous member 50.
[0092]
Specifically, the position of the mark portion 53 is detected by the mark detection station 57a, and the feed amount of the main feed drum 176 is conveyed so that the first continuous member 50 is conveyed at a set constant pitch based on the deviation amount. Is controlled. Note that since the responsiveness to the constant pitch control decreases as the distance from the mark forming station 55a decreases, the detection position of the mark portion 53 is set at a position where the shift amount can be accurately detected. Thus, the relative positions of the mark portion 53 and the developing solution pod 40, the trap material 42, etc., that is, the relative positions of the image frame portion 22, the developing solution pod 40 and the trap material 42, the image frame portion 22 and the spacer member 32. There is an advantage in that the relative position of is adjusted within a desired accuracy range.
[0093]
On the other hand, the flap seal 134 spaced apart by a considerable number of pitches from the first to third thermal bonding stations 64, 66, and 72 that generate thermal contraction of each member has a web restraint on the main feed drum 176 in addition to thermal contraction. When it is insufficient, a seal failure due to a slight change in the seal position occurs, and jamming or the like is likely to occur. Therefore, separately, the image frame portion 22 may be detected by the frame portion detection station 57c, and the flap seal 134 may be controlled to move in the arrow X direction so that the relative position between the image frame portion 22 and the seal position is constant. Although the former 126 is connected to the upstream side of the flap seal 134 and a loop may be provided immediately upstream of the former 126 to control the web position, the web conveyance length becomes longer.
[0094]
Further, in the cutting station 78, in addition to the same reason as that of the flap seal 134, a single cutting mechanism may be used since the cutting mechanism has high-speed suitability. Therefore, a free loop 172 is provided, and the image frame portion 22 is provided by the cut feed drum 180. Can be conveyed by controlling the web position.
[0095]
In addition, when the machine is stopped, the amount of heat shrinkage at the first to third thermal bonding stations 64, 66, and 72 is particularly large, and the relative positions of the image frame portion 22 and other members may be greatly shifted. For this reason, before starting the web conveyance at the start of operation, the main feed drum 176 is controlled to return the position of the mark unit 53 until the detection position deviation at the mark detection station 57a becomes zero. This makes it possible to adjust the relative positions of the image frame portion 22 and other members within an appropriate range even when the machine is stopped.
[0096]
In the second embodiment, it is only necessary to provide one free loop 172, the overall configuration of the manufacturing system 170 is further simplified, and the high-quality instant photo film unit 20 can be efficiently manufactured. There is an advantage that it becomes possible.
[0097]
Furthermore, in the second embodiment, when the first continuous member 50, which is a member that does not require light shielding, is sent from the bright room 92 to the dark room 94, the first continuous member 50 passes through the light shielding mechanism 210. As shown in FIG. 13, in the light shielding mechanism 210, when the first continuous member 50 is inserted into the light shielding box 212 through the slit-shaped passage 220a of the web chute 218a, the first continuous member 50 is circumferential. A stepped portion S is provided in the first continuous member 50 by passing between the first and second pass rollers 214a and 214b that are wrapped. Further, the first continuous member 50 is inserted into the slit-like passage 220 b of the web chute 218 b under the guiding action of the taper portion 222, and is then wrapped again by the first and second pass rollers 214 b and 216 b and guided to the dark room 94. It is burned.
[0098]
As described above, the light shielding mechanism 210 forms the two step portions S on the first continuous member 50 via the first pass rollers 214a and 214b and the second pass rollers 216a and 216b, and is provided on the web chutes 218a and 218b. Through the slit-shaped passages 220a and 220b, it is possible to effectively block the light traveling straight and prevent the external light from being radiated from the bright room 92 to the dark room 94 as much as possible.
[0099]
Therefore, it is possible to have a desired light shielding function with a simple configuration, and the first continuous member 50 can be disposed in the bright room 92. Thereby, the same effect as 1st Embodiment is acquired, such as handling workability | operativity of the 1st continuous member 50 improving at a stretch. Further, the continuous sheet 60, the rail member 65, and the third continuous member 68, which are members that do not require light shielding, are arranged in a roll shape in the bright room 92, and the handling workability thereof is effectively improved.
[0100]
At that time, as shown in FIG. 14, the light shielding mechanism 244 is arranged corresponding to the part where the third continuous member 68 fed out from the cover sheet material supply unit 124 is introduced from the bright room 92 into the dark room 94. . Therefore, when the third continuous member 68 is inserted into the light shielding box 246 from the slit 248 of the light shielding box 246, the path path is changed to an S shape via the first and second pass rollers 252 and 254. After that, it is sent from the slit 250 to the dark room 94. Therefore, it is possible to reliably have a desired light shielding function with a simple configuration.
[0101]
Further, in the second embodiment, the first continuous member 50, the second continuous member 58, the continuous sheet 60, and the third continuous member 68 are set to have the same total length or an integral multiple of each other. At the same time, by setting the respective path lengths in advance, the respective joint portions are assembled on the same instant photo film 20.
[0102]
For example, the mask sheet material supply unit 96 and the cover sheet material supply unit 124 will be described in detail. As shown in FIG. 11, the first continuous member 50 is rewound under the driving action of the feed roller 198. When it is continuously rewound from 182, creases 38 a and 38 b are formed at both edge portions via the crease means 198. The first continuous member 50 is tact-conveyed on the downstream side of the free loop 100 after being neutralized by the electrostatic removal means 196. When the remaining diameter detecting means 184 detects the roll diameter of the first continuous member 50 and detects that the roll has been rewound by a preset length, the feeding operation by the feed roller 198 is stopped.
[0103]
Next, a new roll-shaped first continuous member 50 is mounted on the rewinding shaft 182, and the rear end portion and the front end portion of the old and new rolls are joined by the jointer 186. Therefore, the feeding operation of a new first continuous member 50 is started under the driving action of the feed roller 198.
[0104]
On the other hand, as shown in FIG. 14, in the cover sheet material supply unit 124, the rewinding shaft 230 is rotated and the third continuous member 68 wound around this is fed out. The third continuous member 68 is transported by the path forming unit 236 for a predetermined path length, and then is neutralized by the electrostatic removing unit 196 and sent to the dark room 94 side through the light shielding mechanism 244. Then, when it is detected via the remaining amount detecting means 184 that the remaining amount of the third continuous member 68 has reached a certain amount, the old and new rolls are exchanged and the joining unit 186 performs joining processing. . Furthermore, a new third continuous member 68 is fed out under the rotating action of the rewinding shaft 230, and the joining deviation detecting means 234 performs a quality check of the joining state of the joining portion.
[0105]
The first and third continuous members 50 and 68 have the same path length to the second joining station 70 that is the joining position. For this reason, the joint portions of the first and third continuous members 50 and 68 are gathered in the same instant photographic film unit 20 in the dark room 94. Thereby, each joining site | part of the 1st continuous member 50, the 2nd continuous member 58, the continuous sheet 60, and the 3rd continuous member 68 is gathered in the same instant photo film unit 20, or its vicinity, The discarded instant photographic film 20 is effectively reduced, and the effect of being extremely economical can be obtained.
[0106]
Furthermore, since the first continuous member 50, the second continuous member 58, the continuous sheet 60, and the third continuous member 68 are set to have the same total length or an integral multiple, their replacement timings are the same. Will match. Accordingly, the roll exchanging work is performed almost simultaneously, and the efficiency and speed of the entire manufacturing system 170 can be easily achieved.
[0107]
Furthermore, in the second embodiment, the darkroom 94 is provided with a plurality of light shielding doors 224 and 272. For example, when the light shielding box 212 constituting the light shielding mechanism 210 needs to be inspected, the light shielding doors 224 and 272 are provided. It is only necessary to open the door 224 via the opening / closing handle 228. Further, it is only necessary to open the light shielding door 272 corresponding to the location requiring inspection through the opening / closing handle 274, and an advantage that workability is effectively improved can be obtained.
[0108]
In the first and second embodiments, the photosensitive sheet 30 is configured by the second continuous member 58, but the photosensitive sheet 30 may be configured by the third continuous member 68.
[0109]
In the first and second embodiments, the case where the instant photo film unit 20 that is substantially equal to the outer dimension of the ID card is manufactured has been described. However, the outer dimension H1 in the width direction is 108 mm, and the outer dimension H2 in the unfolding direction is An 85.6 mm instant photographic film unit can also be produced. At that time, in the manufacturing systems 90 and 170, one pitch in the transport direction may be set to 108 mm.
[0110]
【The invention's effect】
In the method and apparatus for manufacturing an instant photographic film unit according to the present invention, at least one free loop is provided in a transport region where positioning of the continuous member is required during the process of manufacturing the instant photographic film unit, and the continuous member Is controlled. As a result, various components (members) can be joined to the desired positioning reference position with high accuracy, and the number of conveyance pitches can be changed before and after the free loop. Therefore, a high-quality instant photographic film unit can be manufactured quickly and efficiently.
[0111]
In the present invention, the light shielding unnecessary member including at least the mask sheet is a continuous member, and the light shielding unnecessary member is disposed in the bright room and automatically fed into the dark room, thereby handling the light shielding unnecessary member in the bright room. This handling operation can be performed easily and efficiently. Thereby, simplification and efficiency improvement of the entire manufacturing process of the instant photographic film unit can be easily achieved.
[Brief description of the drawings]
FIG. 1 is an exploded perspective view of an instant photographic film unit manufactured by a manufacturing method according to a first embodiment of the present invention.
FIG. 2 is a perspective view of the instant photographic film unit.
FIG. 3 is a front explanatory view of the instant photographic film unit as viewed from the exposure surface.
FIG. 4 is a schematic explanatory diagram of the manufacturing method.
FIG. 5 is an explanatory diagram of a schematic configuration of a manufacturing system for carrying out the manufacturing method.
FIG. 6 is an explanatory diagram of a schematic configuration of the manufacturing system including a control unit.
FIG. 7 is a flowchart illustrating the manufacturing method.
FIG. 8 is a schematic explanatory view of a method of manufacturing an instant photographic film unit according to a second embodiment of the present invention.
FIG. 9 is a schematic configuration explanatory diagram of a manufacturing system for carrying out the manufacturing method.
FIG. 10 is a schematic configuration explanatory diagram of the manufacturing system including a control unit.
FIG. 11 is a schematic configuration explanatory diagram of a mask sheet material supply unit constituting the manufacturing system.
FIG. 12 is a perspective explanatory view of a light shielding mechanism constituting the manufacturing system.
FIG. 13 is a vertical cross-sectional explanatory view of the light shielding mechanism.
FIG. 14 is a schematic configuration explanatory diagram of a cover sheet material supply unit constituting the manufacturing system.
FIG. 15 is an explanatory diagram of a dark box portion constituting the manufacturing system.
FIG. 16 is a timing chart illustrating the manufacturing method.
FIG. 17 is a schematic explanatory diagram of a production system for an instant photographic film unit according to the prior art.
[Explanation of symbols]
20 ... Instant photo film unit
22: Image frame 24: Mask sheet
30 ... Photosensitive sheet 32 ... Spacer member
34 ... Exposed surface 36 ... Cover sheet
38a, 38b ... crease 40 ... developing solution pod
42 ... Trap material 44 ... Under sheet
50, 58, 68 ... continuous member 52 ... folding line station
53 ... Mark part
54 ... Trap material installation station
55a ... Mark forming station 55b ... Air hole forming station
56 ... Pod material attachment station 57a ... Mark detection station
57b, 57c ... Frame detection station
59 ... Punching station 60 ... Continuous sheet
62, 70 ... Joining station
64, 66, 72, 76 ... thermal bonding station
74 ... Folding station 78 ... Cutting station
82 ... Film pack 84 ... Packing station
90, 170 ... manufacturing system 92 ... light room
94 ... Dark room 96 ... Mask sheet material supply section
100, 102, 140, 172 ... free loop
108: Light shielding mechanism 116a to 116c: CCD camera
118 ... Sensitive material supply unit 120 ... Under sheet material supply unit
122 ... Rail material supply unit 124 ... Cover sheet material supply unit
138, 176 ... main feed drum
142, 180 ... cut feed drum
150, 151, 152, 154, 164, 168, 200, 232 ... Servo motor
162: Controller 167: Cam drive means
182 ... Rewinding shaft 184 ... Remaining amount detecting means
192: Folding means 204, 260 ... Suction box
210, 244 ... Shading mechanism 212, 246 ... Shading box
214a, 214b, 216a, 216b, 252, 254 ... pass rollers
218a, 218b ... Web chute 236 ... Pass forming part

Claims (16)

A mask sheet having an image frame portion and two sheets having a photosensitive layer on one side are laminated and bonded, and the developing solution derived from the developing solution pod disposed at a predetermined position is A method of manufacturing an instant photographic film unit that obtains an image by being spread between two sheets,
A light shielding unnecessary member including at least the mask sheet is a continuous member, the light shielding unnecessary member is disposed in a bright room and automatically fed into a dark room;
A step of bonding the mask sheet and the two sheets to each other in a predetermined lamination state in the dark room ;
A step of producing a self-developing instant photographic film unit by cutting the continuous member at predetermined lengths in the darkroom ;
And having
At least one free loop is provided by sucking the surface side opposite to the surface side on which the developing solution pod is provided by a suction chamber in a conveyance area where the continuous member needs to be positioned. A method for manufacturing an instant photographic film unit, wherein tact conveyance is individually controlled on an upstream side and a downstream side of the free loop. The manufacturing method of claim 1 Symbol placement, the mask sheet and the two sheets are supplied as the first through third continuous member, integrally after it said first through third continuous member are bonded to each other A method for producing an instant photographic film unit, which is cut. 3. The manufacturing method according to claim 2, wherein the second continuous member having a photosensitive layer is bonded on the first continuous member, which is the mask sheet, with the photosensitive surface facing upward, and then the second continuous member. A method of manufacturing an instant photographic film unit, wherein the third continuous member is adhered onto a member. The manufacturing method according to claim 2 or 3 , wherein the first to third continuous members are set to have the same total length or an integral multiple of the total length used.
The first to the instant photographic film unit each junction is the same for the third consecutive shaped member or so that to set in the vicinity, that each path length of the first through third continuous member is set A method for producing an instant photo film unit. The manufacturing method of claim 1 Symbol mounting method of the instant photographic film unit, characterized in that it comprises a step of chamfering the corners of the instant photographic film unit that is disconnected. The manufacturing method of claim 1 Symbol placement, the mask sheet, the thin portion of the corresponding to the side edges of the image frame portion flaps have a predetermined depth in the thickness direction of the mask sheet A method for producing an instant photographic film unit, which is formed. The manufacturing method of claim 1 Symbol placement, the mask sheet, the production of instant photographic film unit, wherein a deformed portion which constitutes the air passage in correspondence with the attachment position of the excess liquid reservoir member is formed Method. A mask sheet having an image frame portion and two sheets having a photosensitive layer on one side are laminated and bonded, and the developing solution derived from the developing solution pod disposed at a predetermined position is An apparatus for manufacturing an instant photographic film unit that obtains an image by being spread between two sheets,
A light shielding unnecessary member supply station that arranges a light shielding unnecessary member including at least the mask sheet which is a continuous member in a roll shape ;
A photosensitive sheet supply station for supplying one sheet having a photosensitive layer;
The mask sheet and said two sheets, and bonding station that will be against wear in a predetermined laminated state,
A cutting station for manufacturing a self-developing instant photographic film unit by cutting the continuous member every predetermined length;
At least one free loop that is provided in a conveyance region where positioning of the continuous member is necessary, and controls the tact conveyance of the continuous member separately on the upstream side and the downstream side;
A suction chamber for sucking the surface of the continuous member opposite to the surface on which the developing solution pod is provided, and forcibly forming the free loop;
Provided with a,
While the light-shielding unnecessary member supply station is disposed in a bright room,
An apparatus for producing an instant photographic film unit , wherein at least the photosensitive sheet supply station, the bonding station, and the cutting station are disposed in a dark room . 9. The manufacturing apparatus according to claim 8 , wherein a light shielding mechanism is disposed between the light shielding unnecessary member supply station and the dark room,
The light shielding mechanism includes a light shielding box installed at a dark room entrance,
First and second pass rollers disposed in the light shielding box corresponding to both surfaces of the light shielding unnecessary member, and each peripheral surface wraps the light shielding unnecessary member to provide a light shielding step portion on the light shielding unnecessary member;
An apparatus for producing an instant photographic film unit, comprising: The manufacturing apparatus according to claim 9 , wherein two sets of the first and second pass rollers are arranged in the light shielding box,
An apparatus for manufacturing an instant photographic film unit, wherein a slit-shaped web chute is disposed upstream of each of the first and second pass rollers. 9. The apparatus for manufacturing an instant photographic film unit according to claim 8 , wherein the darkroom includes a plurality of light-shielding doors that can be opened and closed. 9. The manufacturing apparatus according to claim 8 , wherein the light shielding unnecessary member supply station supplies the mask sheet and the two sheets as first to third continuous members, and the first to third continuous members are mutually connected. An apparatus for producing an instant photographic film unit, which is integrally cut after being bonded. The manufacturing apparatus according to claim 12 , wherein the first to third continuous members are set to have the same total length or an integral multiple of each other,
In or so that to set near the instant photographic film unit bonding sites identical between the first through third continuous member, that each path length of the first through third continuous member is set An apparatus for producing an instant photo film unit. 9. The manufacturing apparatus for an instant photo film unit according to claim 8 , further comprising a chamfering station for chamfering a corner portion of the cut instant photo film unit. 9. The manufacturing apparatus according to claim 8 , wherein a folding line station for forming a thinned portion for folding back to a predetermined depth in the thickness direction of the mask sheet corresponding to both side edges of the image frame portion of the mask sheet. An apparatus for producing an instant photographic film unit, comprising: 9. The manufacturing apparatus according to claim 8 , wherein the mask sheet is provided with an air hole forming station for forming a deformed portion constituting an air passage corresponding to a position where the surplus liquid reservoir member is attached. Unit manufacturing equipment.

Images