JP2001092056A - Side printer for photographic sensitive film - Google Patents

Abstract

PROBLEM TO BE SOLVED: To economically and efficiently form a latent image of high quality in the side part of a photographic sensitive film with a simple constitution. SOLUTION: A device is provided with a suction drum 40, which holds a long-sized photographic film by suction and is rotated, and a side printer 42 which forms a latent image in the side part of the long-sized photographic film 30 held on the suction drum 40 by suction. The suction drum 40 has a peripheral part 56 having plural suction holes 58, and groove parts 60a and 60b to form a space S on the rear side of the photographic film 30 are provided on the edges of the peripheral part 56.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a photographic photosensitive film side printer for forming a latent image on the side of a photographic photosensitive film.

[0002]

2. Description of the Related Art In general, as a photographic roll film (photosensitive film), there are known a brownie film referred to as a 120 type or a 220 type, and a 35 mm film having perforations on both sides.

For example, as shown in FIG. 6, a roll film 1, which is a brownie film, has a spool 2 made of resin.
A photo film strip 3 obtained by cutting a long photo film into a prescribed length; and a photo film strip 3
And a light-shielding paper strip 4 arranged as a backing paper on the entire back side of the paper. The leading end 3a of the photo film strip 3 is fixed to the back surface of the light-shielding paper strip 4 via an adhesive tape 5, and an opening seal 6 for preventing the roll film 1 from being loosened around the light-shielding paper strip 4. Fixed. Sealing seal 7 for preventing loosening of photographic film strip 3 and light-shielding paper strip 4 wound around another spool 2 after shooting.
Are provided on the front side of the light-shielding paper strip 4.

The spool 2 is provided with a disk-shaped flange 9 on both sides of a cylindrical shaft portion 8. A slit 10 is formed in the shaft portion 8 along the axial direction. On one inner wall surface, a substantially T-shaped locking claw 1 is provided.
1 is integrally formed. On the other inner wall surface of the slit 10, a pair of holding ribs 12 are formed integrally around the locking claw 11.

The leading end portion 4a and the trailing end portion 4b of the light-shielding paper strip 4 are cut obliquely and then set to be narrow in order to facilitate insertion into the slit 10 of the spool 2.
A locking hole 13 for inserting a locking claw 11 when the light-shielding paper strip 4 is inserted into the slit 10 of the spool 2 in the camera is formed at the front end 4a of the light-shielding paper strip 4. On the adhesive tape 5, a bar code 14 representing film information such as a film type, a film size, and a film type is printed.

A product name 15 indicating the film information of the photographic film strip 3 before cutting into the photographic film strip 3, a lot number and a processing order are provided on both sides of the photographic film strip 3 outside the photographing range. And the serial number 16 in which manufacturing information such as a symbol is recorded as a latent image.

As a device for recording this kind of latent image, a side printer is widely used. This side printer device includes a suction drum that is rotatably driven with a number of air suction holes formed in a peripheral surface thereof, and a print head (side printer) that is arranged to face a photographic photosensitive film that is sucked and held by the suction drum. ).

[0008]

The suction drum described above transports a photographic photosensitive film in close contact with the peripheral surface by a large number of air suction holes provided on the peripheral surface. Foreign matter such as film cutting debris and emulsion residue easily adheres to the back surface of the photosensitive film opposite to the exposed surface (emulsion surface). For this reason, foreign matter is interposed between the back surface of the photographic film and the peripheral surface of the suction drum, and the photographic film is transported so as to float up from the peripheral surface.

However, if foreign matter adheres to the vicinity of both sides in the width direction of the photographic film, that is, to the back surface of the edge where the product name 15 and the serial number 16 are recorded as a latent image, the photographic film is exposed. The latent image recording portion of the film is separated from the peripheral surface of the suction drum.
As a result, a problem has been pointed out that the distance between the latent image recording surface and the print head fluctuates, and the printed latent image is blurred.

The present invention is to solve this kind of problem, and it is possible to reliably prevent a photographic film from rising from a suction drum and to form a high-quality latent image smoothly with a simple structure. It is an object of the present invention to provide a photographic photosensitive film side printer device that can be used.

[0011]

In the photographic photosensitive film side printer according to the present invention, a plurality of suction holes for sucking the photographic photosensitive film are provided on the peripheral surface of the suction drum. At the end of
A groove for forming a predetermined gap on the back side of the photographic film is provided at a predetermined position inside the widthwise end of the photographic film.

Therefore, even if foreign matter is attached near the rear end of the photosensitive film, the foreign matter does not intervene between the peripheral surface of the suction drum and the photosensitive film. As a result, it is possible to reliably prevent the latent image recording portion of the photographic film from rising from the peripheral surface of the suction drum, and to effectively prevent the latent image from blurring. In addition, it is only necessary to form a groove at the end of the peripheral surface of the suction drum, and the production cost can be reduced.

The flange provided on the side of the suction drum has an uneven portion on its surface. For this reason, even if the printing light emitted from the side printer is applied to the flange of the suction drum, the light reflected from the flange is reduced, effectively preventing the occurrence of light fogging on the photographic film. It becomes possible.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a schematic structural explanatory view of a roll film manufacturing apparatus 22 incorporating a side printer apparatus 20 according to an embodiment of the present invention.

The roll film manufacturing apparatus 22 includes a film supply mechanism 24 for supplying the photographic film strip 3,
A light-shielding paper supply mechanism 26 for supplying the light-shielding paper strip 4,
A winding mechanism 28 for winding the light-shielding paper strip 4 and the photographic film strip 3 around the spool 2 is provided.

The film supply mechanism 24 includes a film supply section 32 for drawing out a long photo film 30 wound into a roll by a predetermined length, a product name 15 indicating various kinds of film information such as size, sensitivity, and type, and a lot. A side printer device 20 for side-printing a serial number 16 representing a number, a processing order and the like on the long photo film 30.
And a film transport path 34 for transporting the long photographic film 30.

The side printer device 20 is provided with a suction drum 40 for conveying the long photographic film 30 in a fixed length by rotating while holding the long photographic film 30 by suction.
And a side printer 42 disposed opposite to the long photographic film 30 sucked and held by the suction drum 40 and forming latent images on both sides of the long photographic film 30.

As shown in FIGS. 2 and 3, a motor 44 constituting the side printer device 20 is fixed to a support plate 46, and a rotation drive shaft 48 of the motor 44 is fixed via bearings 50a and 50b. The cylinder 52 is rotatably supported by the cylinder 52. A suction drum 40 serving as a print drum is coaxially fixed to the tip of the rotary drive shaft 48.

As shown in FIGS. 2 to 4, a plurality of openings 54 are formed in the side of the suction drum 40 at a predetermined angular interval from the center of the suction drum 40. The portion 54 communicates with a plurality of suction holes 58 opened on the peripheral surface portion 56 of the suction drum 40. Grooves 60a, 6 are provided at both ends of the peripheral surface 56.
The flanges 62a and 62b are fixed to both sides of the suction drum 40 so as to cover the grooves 60a and 60b to a predetermined position.

As shown in FIG. 5, the suction drum 40
When the long photographic film 30 is adsorbed on the peripheral surface portion 56 of
Grooves 60a, 60b extend inwardly and at predetermined positions from both ends in the width direction of the long photo film 30,
A predetermined gap S is formed on the back side of the long photographic film 30. Specifically, the grooves 60a, 60b have a width of 1 mm from the end faces 64a, 64b of the flanges 62a, 62b, and a depth of 0.5 m from the peripheral surface 56.
m. Uneven portions 66a, 66b are formed on the surfaces of the flange portions 62a, 62b by, for example, sandblasting.

On both sides of the suction drum 40, ring-shaped lids 68a and 68b are fixed so as to cover the opening 54, and a plurality of holes communicating with the opening 54 are formed in the lid 68a on the motor 44 side. The part 70 is formed. As shown in FIG. 3, a ring-shaped pressing member 72 is provided on the fixed cylindrical body 52, and the pressing member 72 is pressed toward the suction drum 40 via a spring 74. The pressing member 72 is non-rotatably supported via a rotation stopping member 75, and a resin plate 76 pressed and supported by a lid 68a fixed to the suction drum 40 is fixed to an end surface of the pressing member 72. Is done.

In the resin plate 76, an arc-shaped long hole 78 communicating with the hole 70 within a predetermined angle range is formed in the hole 70 formed in the lid 68a. The long hole 78 regulates a suction range of the long photographic film 30, and the long hole 78 communicates with a suction source (not shown) through a conduit 80. Guide rollers 81a and 81b are provided on the outer periphery of the suction drum 40 along the peripheral surface portion 56 so that the long photographic film 30 can follow a predetermined angle range (see FIG. 4).

As shown in FIG. 1, the side printer 2
A film cutter 82 for cutting the long photographic film 30 into fixed lengths to form the photographic film strip 3 is disposed between the film transport path 34 and the film transport path 34. A tape sticking section 84 for sticking the adhesive tape 5 to the front end 3a of the photographic film strip 3 is disposed downstream of the film transport path 34. The tape affixing section 84 pulls out the release paper wound in a roll shape integrally with the adhesive tape 5 from the original roll, separates the adhesive tape 5 from the release paper, and attaches the adhesive tape 5 to the leading end 3a of the photographic film strip 3. paste. Tape pasting section 84
A transport roller pair 86 is arranged on the downstream side of.

The light-shielding paper supply mechanism 26 includes a light-shielding paper supply unit 88.
The light-shielding paper supply unit 88 pulls out the long light-shielding paper 90 wound in a roll by a predetermined length and trims the light-shielding paper strip 4 to a portion corresponding to the leading end 4a and the trailing end 4b. At the same time, the locking hole 13 is pierced. The long light-shielding paper 90 has the light-shielding paper strip 4 continuously printed thereon, and the rear end portion 4b locked to the spool 2 during manufacturing.
Is transported forward.

At the downstream side of the light-shielding paper transport path 92 into which the long light-shielding paper 90 is fed from the light-shielding paper supply unit 88, a sticker for sticking the seal 7 at a predetermined position on the surface of the long light-shielding paper 90 is attached. The attaching part 94 is arranged. The seal sticking section 94 pulls out the seal sticker 7 from the original roll wound into a roll by a certain length, cuts it, and sticks the seal sticker 7 at a predetermined position on the surface of the light-shielding paper strip 4. wear.

On the downstream side of the sticking section 94, first and second back tension rollers 96 and 98 for applying back tension to the light-shielding paper strip 4 and a long light-shielding paper 90 are wound on the winding mechanism 28 side. And a light-shielding paper cutter 102 that cuts the long light-shielding paper 90 at a predetermined position to form a light-shielding paper strip 4. Film transport path 34 and light-shielding paper transport path 92
Merge to form a merged transport path 104.

The winding mechanism 28 includes a disk-shaped spool turret 112 rotatably mounted on a shaft 110, a spool supply unit 114 disposed on the outer periphery of the spool turret 112 and supplying the spool 2, A spool positioning device 116 for positioning the direction of the slit 10, a winding portion 118 provided in the dark room and winding the photographic film strip 3 and the light shielding paper strip 4 on the spool 2, and the light shielding paper wound on the spool 2 A light-shielding paper folding machine 120 for folding the leading end 4a of the strip 4 inward;
Wrapping machine 1 for wrapping the opening seal 6 around the periphery of
22 and an inspection machine 12 for inspecting the roll diameter of the roll film 1
4 and an accumulation transport path 126 for transporting the roll film 1 determined to be non-defective by inspection to a packaging device or the like.

The spool turret 112 is intermittently rotated by 45 degrees in a direction indicated by an arrow by a motor (not shown). The spool turret 112 is provided with a spool holder 128 for holding the spool 2. The spool holder 128 is provided with a motor (not shown) for rotating the spool 2 in the winding direction. The respective stop positions of the spool turret 112 are set at first to seventh stations ST1, ST2, ST3, ST4, ST5 for performing various operations on the spool 2.
ST6 and ST7 are provided, and a spool supply unit 114, a spool positioning machine 116, and a winding unit 11 are provided, respectively.
8, shading paper folding machine 120, seal wrapping machine 12
2, an inspection machine 124 and an accumulation conveyance path 126 are arranged.

The operation of the thus configured side printer device 20 will be described below in relation to a roll film manufacturing device 22 incorporating the same.

First, the long photographic film 30 set in the film supply section 32 is pulled out by a predetermined length and is conveyed to the side printer device 20. In this side printer device 20, as shown in FIG. 3, a suction source (not shown) is driven via a conduit 80, and a long hole 78 provided in a resin plate 76 over a predetermined angular range to a hole of a lid 68a. The predetermined opening 54 of the suction drum 40 is sucked through 70. For this reason, the guide roller 8
1a, 81b via the peripheral surface 5 of the suction drum 40
The long photographic film 30 in contact with 6 over a predetermined angle range is suction-held on the peripheral surface portion 56 under the suction action of the plurality of suction holes 58 communicating with the long holes 78.

In this state, the suction drum 40 is conveyed integrally with the rotary drive shaft 48 under the driving action of the motor 44 by a distance corresponding to the length of one photographic film strip 3, while the side printer 42 The product name 15 and the serial number 16 are recorded as a latent image outside the photographing range of the long photo film 30 via the. The long photo film 30 after the side print is used for the film cutter 8
The photographic film strip 3 is conveyed to a predetermined length and cut into a predetermined length.

The photographic film strip 3 is fed into a tape attaching section 84 in the film transport path, and the photographic film strip 3 is sent to the tape attaching section 84.
The adhesive tape 5 is stuck to the tip 3a of the. The photographic film strip 3 to which the adhesive tape 5 is attached
Is temporarily stopped by being nipped by the pair of transport rollers 86.

On the other hand, the long light-shielding paper 90 set in the light-shielding paper supply unit 88 is pulled out by a predetermined length, and the leading end 4a and the rear end 4b of the light-shielding paper strip 4 are trimmed. The locking hole 13 is drilled. The long light-shielding paper 90 that has been trimmed and perforated is sent to a seal sticking section 94 in the light-shielding paper transport path 92.
In this sticker sticking section 94, the sealing sticker 7 is attached at a predetermined position on the surface of the light-shielding paper strip 4, and the long light-shielding paper 90 to which the sealing sticker 7 is attached is
The sheet is conveyed to the winding mechanism 28 by the conveying roller pair 100.

At the same time as the operations of the film supply mechanism 24 and the light-shielding paper supply mechanism 26, the operation of each part of the winding mechanism 28 is also started. That is, in the first station ST1, the spool 2 manufactured and transported on another line is supplied from the spool supply unit 114 to the spool holder 128.

After the spool 2 is set on the spool holder 128, the spool turret 112 is
The intermittent rotation in the direction of the arrow stops at the second station ST2. In the second station ST2, the slit 10 of the spool 2 is positioned in a predetermined direction via the spool positioning device 116. While the above operation is being performed, the second back tension roller 98 is retracted upward.

When the spool 2 is transported to the third station ST3, the leading end of the long light-shielding paper 90 transported by the transport roller pair 100 is inserted into the slit 10 of the spool 2. Further, the second back tension roller 98 moves to the holding position, and the long light-shielding paper 90 is held between the first and second back tension rollers 96 and 98.

Then, the long light-shielding paper 90 is cut through the light-shielding paper cutter 102, and the light-shielding paper strip 4 is obtained. In this state, the spool holder 128 rotates the spool 2 several times in the film winding direction to wind the rear end 4b of the light-shielding paper strip 4 around the shaft 8 of the spool 2. Next, the photographic film strip 3 is transported from the film transport path 34 via the transport roller pair 86 and is superposed on the back surface of the light-shielding paper strip 4. Spool 2
Is further rotated in the winding direction, the light-shielding paper strip 4 and the photographic film strip 3
Wrapped around.

In the third station ST3, the spool 2 around which the photographic film strip 3 and the light-shielding paper strip 4 are wound is conveyed to the fourth station ST4 by the rotation of the spool turret 112. In the fourth station ST4, the front end 4a of the light-shielding paper strip 4 is folded inward by the light-shielding paper folding machine 120.

At the fifth station ST5, the opening seal 6 is wound around the outer periphery of the light-shielding paper strip 4 by the seal winding machine 122. Further, at the sixth station ST6, the winding diameter of the roll film 1 is inspected by the inspection machine 124, and the roll film 1 determined to be defective in this inspection is taken out from the spool holder 128 and discharged out of the apparatus. On the other hand, the roll film 1 determined to be non-defective is taken out of the spool holder 128 at the seventh station ST7, sent to the accumulation conveyance path 126, and conveyed to a packaging device (not shown) or the like.

In this case, in the side printer device 20 according to the present embodiment, the peripheral surface 56 of the suction drum 40
Then, the long photographic film 3 is sucked under the suction action from the suction hole 58.
0 is adsorbed over a predetermined angle range, and the peripheral surface portion 56 has grooves 60a, 60b at predetermined positions inwardly of both ends in the width direction of the long photographic film 30.
(See FIG. 5). For this reason, a predetermined gap S is formed on the back side at both ends in the width direction of the long photographic film 30, and even if the foreign matter 130 such as film cutting chips and emulsion residue adheres to the back side, 130 does not intervene between the peripheral surface portion 56 and the back surface.

Accordingly, the foreign matter 130 is interposed between the back edge of the long photographic film 30 and the peripheral surface portion 56, and the latent image recording portion on the exposure surface (emulsion surface) side of the long photographic film 30 is reduced. It does not rise from the peripheral surface portion 56. As a result, the long photo film 3 is output via the side printer 42.
The effect that the product name 15 and the serial number 16 can be recorded with high quality without causing blurring or the like at both end portions in the width direction of 0 is obtained.

In particular, in the present embodiment, in the suction drum 40, the groove 60 has a predetermined length in the axial direction and a predetermined depth in the radial direction at both end edges of the peripheral surface portion 56.
Only a and 60b need to be formed. Therefore, there is an advantage that high-quality side printing can be smoothly performed with an extremely simple configuration, and the cost is low.

Further, in the present embodiment, the flange portions 62a, 6a fixed to both sides of the suction drum 40 are provided.
Uneven portions 66 formed by sandblasting or the like on the surface of 2b
a, 66b are formed. Therefore, the flange portion 62
a, the reflectance of light on the surface of 62b can be reduced,
The light emitted from the side printer 42 can be effectively prevented from being reflected on the flange portions 62a and 62b and causing light fogging on the long photographic film 30. Thus, the long photo film 30 can be formed with a simple configuration.
There is an effect that the prevention of light fogging is surely performed.

In the present embodiment, the roll film 1 which is a brownie film has been described as the photographic photosensitive film. However, even when the film is incorporated in an apparatus for manufacturing a 35 mm film having perforations at both edges in the width direction, the same applies. The effect can be obtained. At this time, a sprocket corresponding to the perforation of the 35 mm film is formed on the suction drum 40, but other configurations are the same.

[0045]

In the side-printing apparatus for a photographic photosensitive film according to the present invention, the peripheral surface of the suction drum which rotates while sucking and holding the photographic photosensitive film is located inside the widthwise end of the photographic photosensitive film. A groove is formed extending to a predetermined position, and a gap is formed on the back side of the photographic film. Therefore, even if foreign matter adheres to the back side of the photosensitive film, the foreign matter does not intervene between the peripheral surface of the suction drum and the photosensitive film, and the width of the photosensitive film is reduced. The edge in the direction, that is, the latent image recording portion does not rise from the suction drum. This makes it possible to efficiently and economically form a high-quality latent image with a very simple configuration without causing a blur or the like in the latent image formed on the photographic photosensitive film.

[Brief description of the drawings]

FIG. 1 is a schematic configuration explanatory view of a roll film manufacturing apparatus incorporating a side printer device according to an embodiment of the present invention.

FIG. 2 is an exploded perspective view of a main part of the side printer device.

FIG. 3 is an explanatory longitudinal sectional view of the side printer device.

FIG. 4 is an explanatory front view of a suction drum constituting the side printer device.

FIG. 5 is an enlarged explanatory view of a main part of the suction drum.

FIG. 6 is an explanatory perspective view of a roll film.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Roll film 2 ... Spool 3 ... Photo film strip 4 ... Shielding paper strip 15 ... Product name 16 ... Serial number 20 ... Side printer device 22 ... Roll film manufacturing device 24 ... Film supply part 26 ... Shielding paper supply mechanism 28 ... Winding Rotating mechanism 30 ... Long photo film 32 ... Film supply mechanism 40 ... Suction drum 42 ... Side printer 44 ... Motor 54 ... Opening 56 ... Peripheral surface 58 ... Suction hole 60a, 60b
... Grooves 62a, 62b ... Flanges 66a, 66b
... Uneven portion 72. Pressing member 76. Resin plate 78.

Claims (2)

[Claims] 1. A suction drum for transporting a photographic photosensitive film by suction-holding and rotating a rear surface opposite to an exposure surface of the photographic photosensitive film, and the suction drum held by the suction drum. A side printer that is arranged to face the photographic film, and forms a latent image on the side of the exposure surface of the photographic film; andthe suction drum is for adsorbing the photographic film. A peripheral surface portion having a plurality of suction holes, provided from an end of the peripheral surface portion to a predetermined position inward of an end in the width direction of the photographic photosensitive film, and a predetermined position on a back side of the photographic photosensitive film; A side printer device for a photographic photosensitive film, comprising: a groove for forming a gap. 2. The side printer device according to claim 1, wherein a flange portion having a larger diameter than the suction drum is provided on a side portion of the suction drum, and an uneven portion is formed on a surface of the flange portion. A side printer device for a photosensitive film.