JPH043540B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a photographic film processing method and apparatus used for manufacturing perforated photographic film.

Manufacture of 16mm and 35mm roll film was published in 1972.
As described in Japanese Patent No. 115215 and US Pat. No. 2,940,232, the process consists of a photosensitive emulsion coating process, a slitting process, a perforation and printing process, a cutting and rolling process, and a packaging process. In the coating step, a photosensitive emulsion is coated on the web, and after drying, the web is wound up again into a roll. In the slitting process, a wide photographic film wound into a roll is unwound and shredded into narrow width photographic films, and the film is wound again into a roll. In the perforation and printing process, perforations are perforated at the edges of the photographic film while unwinding the narrow-width photographic film wound into a roll. Next, frame numbers, etc. are printed on the edges, and then the photograph is printed. It winds up the film into a roll. In the cutting and winding process, the photographic film wound into a roll is rewound and tongued at the end portions, and then cut at the tongued positions and then wound into a cartridge. The packaging process is
The cartridge is placed in a container and then loaded into a cosmetic case.

Each of the above-mentioned steps is performed by an independent machine, which has the drawbacks of complicating the steps, increasing the amount of work in progress, and lowering the yield. Furthermore, since the tongue is processed before cutting and the cutting is performed using the tongue as a reference, it is difficult to align the tongue position and the cutting position.
Furthermore, the length to be cut is determined during the printing process in which frame numbers etc. are printed, so when manufacturing products with different film sizes continuously, the cut length is determined by cutting the photographic film into a roll for each film size. need to be sorted. Therefore, process control is troublesome and it is not suitable for manufacturing a wide variety of products in small quantities.

The latest photo film processing method integrates the slitting process, perforation process, and printing process, and perforates a long roll of photo film, then prints frame numbers, etc., and then shreds it.
A device that is wound up into a roll has been proposed (Japanese Unexamined Patent Publication No. 177137/1983). This photographic film processing method integrates some of the processes, so
Although this is effective in simplifying the manufacturing process, it has not yet solved the various problems mentioned above.

SUMMARY OF THE INVENTION An object of the present invention is to provide a method and apparatus for processing photographic film, which facilitates cutting with high precision.

Another object of the present invention is to provide a photographic film processing method and apparatus which are suitable for manufacturing a wide variety of products in small quantities by allowing the length to be cut to be changed even during the middle of the roll.

Another object of the present invention is to provide a photographic film processing method and apparatus that can simplify the manufacturing process by integrating the printing process and the cutting process.

In order to achieve the above object, the present invention measures the length of perforated photographic film, marks each length according to the film size (for example, 12 shots, 24 shots, etc.), and measures the length of perforated photographic film. This is characterized in that the printing and cutting of the piece numbers, etc. are performed based on the marks. In a preferred embodiment of the invention, the photographic film is shredded into narrow widths;
It is used for photographic film wound into a roll, and perforation is perforated in this photographic film.
The amount of photographic film transported is detected from the number of perforations, and when the photographic film has been transported by a length determined by the film size, a mark is attached to the photographic film and printing is performed using this mark as a reference. After this, cutting and winding are performed.

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

In FIG. 1, a photographic film 1 is being transported in the direction indicated by the arrow, and perforations are formed at a constant pitch on both sides of the photographic film 1. A photo sensor consisting of a light projecting section 2a and a light receiving section 2b is installed at a portion of the photographic film 1 through which the perforation passes, and detects the passage of the perforation. This light receiving section 2
The signal b is sent to the marker controller 3, where it is counted, and the amount of transfer of the photographic film 1 is measured from the number of perforations. It is also possible to measure the transport amount of the photographic film 1 by using a sprocket meshing with the perforation and a pulse generator directly connected to the sprocket. The setting device 4 includes type keys such as film size and film sensitivity, and specifies the type of photographic film being manufactured. The film size information set by the setting device 4 is input to the marker controller 3. Therefore, based on the film size information,
A marking signal is sent to the marker 5 when a predetermined number of perforations have been counted. As the marker 5, an inkjet printer, a laser perforator, or the like is used, and a mark 6 is attached to the photographic film 1 as shown in FIG.

The photographic film 1 marked with a mark 6 by the marker 5 is transported to a printing position by a guide roller 7 and a film drive sprocket 8. This film drive sprocket 8 has two sets of pawls that mesh with perforations 1a shown in FIG. At the print position,
A printer 9 for printing frame numbers and the like on the edges of the photographic film 1 is provided. As this printer 9, those described in Japanese Utility Model Publication No. 56-16589, Japanese Unexamined Utility Model Publication No. 57-42037, Japanese Unexamined Utility Model Publication No. 57-163226, Japanese Utility Model Application Publication No. 56-38341, etc. are used, and the printer control It emits light in response to a light emission command from the device 10. In front of the printer 9, a mark detector 11 using a reflective photo sensor or the like that integrates a light source and a hole is provided, and outputs a mark detection signal when the mark 6 is detected. This mark detection signal is input to the printer controller 10 as a print start signal. A position detector 12 such as a pulse generator is directly connected to the film drive sprocket 8, and a pulse signal is outputted and input to the printer controller 10 each time the photographic film 1 is advanced a certain length. Since trimming and cutting, which will be described later, is performed intermittently, the photographic film 1 is buffered by providing a loop after the driving sprocket 8.
A first loop detector consisting of a light emitting part 15a and a light receiving part 15b, a third loop detector consisting of a light emitting part 16a and a light receiving part 16b, are detected and these detection signals are sent to the disconnect controller 17. Incidentally, if the light projecting section and the light receiving section are moved up and down according to the film size, only one loop detector may be used.

The cutting controller 17 receives the film size signal from the setting device 4, and when it determines that there is a loop amount corresponding to the film size based on the signal from the loop detector, the cutter Drive the film drive sprocket 19. The photographic film 1 transferred by the film drive sprocket 19 passes through a mark detector 20, where the mark 6 attached to the photographic film 1 is detected. When the mark 6 is detected by the mark detector 20, the cutting controller 17 sends a stop signal to the drive section 18 to stop the rotation of the film drive sprocket 19. Immediately after this, a cutting command is issued to the trim drive unit 21, and the movable blade 23 is moved relative to the fixed blade 22 to perform trimming cutting. This trimmed and cut photographic film is placed in the film guide 2.
4 and 25, and conveyed by conveyance rollers 26 and 27. A cartridge spool shaft 28 is arranged at the exits of the film guides 24 and 25, and winds the photographic film therein.

The film drive sprocket 8, transport rollers 26, 27, and spool shaft 28 are driven by a motor (not shown). Note that these, the film drive sprocket 19, and the upper blade 22 may be driven by the same motor. In this case, the drive unit 1
Clutches are used as 8 and 21.

Next, the operation of the above embodiment will be explained. Operate the type key on the setting device 4 to specify the film size (12 exposures, 24 exposures), film sensitivity, etc. By this operation, film size information is sent to the marker controller 3 and cutting controller 17. Further, print information determined according to the film size and film sensitivity is sent to the printer controller 10.

The perforation 1a signal detected by the light receiving section 2b is sent to the marker controller 3,
When a predetermined number of perforations are counted, a marker 5 is activated to mark a mark 6 such as ink or a hole on the photographic film 1. This mark 6
When detected by the mark detector 11, the printer 9 is activated and prints the frame number etc. at a predetermined position in response to a pulse signal from the position detector 12.

After confirming that there is a sufficient loop amount using the loop detector, the cutting controller 17 rotates the film drive sprocket 19 to cut the photographic film 1.
to be transferred. When the mark 6 is detected by the mark detector 20 during this transfer, the rotation of the film drive sprocket 19 is stopped, and immediately after this, the movable blade 22
is operated to punch out the trim portion indicated by diagonal lines in FIG. By this trimming cut,
The edges of the film are processed and the marks 6 are also removed. In FIG. 2, reference numeral 1b indicates a small hole that engages with a pawl provided on the spool shaft 28 of the cartridge.

The trimmed photographic film is conveyed by conveyance rollers 26 and 27, and its leading end is inserted into a spool shaft 28. This spool shaft 28 is rotated by a drive shaft (not shown) and winds up one roll of photographic film.

FIG. 3 shows an embodiment in which the processes from the drilling process to the winding process are integrated, and the same parts as in FIG. 1 are given the same reference numerals. The shredded photographic film 30 is wound around a winding core 31, and this winding core 31 is attached to a delivery shaft 32. Photographic film 3 is loaded by feed rolls 33 and 34.
0 is pulled out, guided by a guide 35 and sent to a drilling machine 36. Immediately after the shuttle pin 37, which engages with the perforation and intermittently transports the photographic film 30, transfers the photographic film, the perforation machine 36 lowers the punch portion 38 to form a perforation on both sides of the photographic film 30. form a sion. Note that this drilling can also be performed using a rotary drilling machine that performs drilling while running.

The perforated photographic film 30 passes through a guide 39 to form a loop, and then is transported at a constant speed by a film drive sprocket 40. The photographic film 30 transferred by the film drive sprocket 40 is transferred to the light projecting section 2.
The light passes through a photo sensor consisting of a light receiving section 2b and a light receiving section 2b, and perflation is detected there. The marker 5 is activated by the signal from the photo sensor and the film size information from the setting device 4 to mark it.

The marked photographic film 30 passes through a guide roller 41 and reaches the film drive sprocket 8. A printer 12 is disposed adjacent to the film drive sprocket 8, and prints frame numbers and the like on the photographic film 30. A mark detector 20 is provided to perform this printing process and trimming and cutting. A rotary cutter is used for trimming, and the lower blade 4
This is done by rotating the upper blade 44 placed opposite to the blade 3. This upper blade 44 is driven by a drive unit 45, stops at a fixed position after trimming and cutting, and waits for the next cut. This drive section 45 is controlled by a cutting controller 46.

The trimmed and cut photographic film is wound onto the spool shaft 28 as described above.

In the embodiment described above, the mark is placed on the portion to be trimmed, but the mark may be placed on the portion that does not interfere with photographing. Further, when a running blade type drilling machine is used as the marker, a small hole 1b that is engaged with the spool shaft may be formed and this may also be used as the mark.

Since the present invention having the above configuration integrates the printing process and the cutting process, the process can be simplified and the number of products in progress can be reduced. Furthermore, since the number of times of winding and unwinding is reduced, the photographic film is less likely to be scratched, and the yield is improved. Furthermore, since the film size can be changed even during rolling, process control is facilitated and it is convenient for manufacturing small quantities of different sizes. Further, since a mark is attached to the photographic film and printing and cutting are performed using this mark as a reference, it is possible to easily align the printing position and the cutting position.

[Brief explanation of drawings]

FIG. 1 is a schematic diagram showing an embodiment of the present invention, FIG. 2 is a plan view of a photographic film showing an example of a mark, and FIG. 3 is an embodiment of the present invention in which the process from punching to winding is performed continuously. FIG. 2 is a schematic diagram illustrating an example. 1... Photographic film, 1a... Perflation, 2a... Light projecting section, 2b... Light receiving section, 3...
Marker controller, 4... Setting device, 6... Mark,
10... Printer controller, 11... Mark detector, 12... Position detector, 17... Cutting controller,
18... Drive unit, 20... Mark detector, 21...
... Drive unit, 22 ... Movable blade, 28 ... Spool shaft, 30 ... Photographic film, 36 ... Perforator, 4
4... Upper blade, 45... Drive unit, 46... Cutting controller.

Claims (1)

[Claims] 1. When a perforated photographic film is transported a predetermined length, a mark is attached to the photographic film, and printing and cutting are sequentially performed using this mark as a reference. Characteristic photographic film processing method. 2. The photographic film processing method according to claim 1, wherein the mark is attached to a portion to be trimmed by cutting. 3. The photographic film processing method according to claim 1, wherein the length of the photographic film is measured by counting the number of perforations. 4. Means for generating a signal in synchronization with the transport of a perforated photographic film, means for counting this signal and generating a marking signal when the photographic film has been transported a predetermined length, and this marking. The apparatus comprises a means for inputting a signal to mark the photographic film, a means for detecting the mark and printing a frame number etc. on the photographic film, and a means for detecting the mark and cutting the printed photographic film. Features of photographic film processing equipment.