JPH07237191A - Photographic film punching device - Google Patents

Abstract

PURPOSE:To facilitate a size change by independently driving and controlling a carry of a photographic film, a vertical movement of a pilot pin and a vertical movement of punches respectively in punching device for the photographic film having the partially nonperiodic perforation arrangement. CONSTITUTION:A punch 24 for perforations and a lower die set 10 on which a die 11 having a pilot receiving hole are arranged under a punching device body l, and a first press containing a ram 22 which is vertically moved along a guide frame 21 by a driving device 28 and has a punches 24 fixed to an upper die set 23 is arranged in an upper part of the device body 1. A second press containing a ram 42 which is vertically moved along a guide frame 41 similarly by a driving device 48 and has a pilot 44 is arranged in the downstream adjacently to the first press. Intermittent feed of a photographic film 110 and respective vertical movements of the pilot 44 and the punch 24 are independently driven and controlled.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a photographic film perforating apparatus for perforating a photographic film for roll film which has no periodic perforation, for example, partially at the front end or the rear end of the film.

[0002]

2. Description of the Related Art In the conventional perforation perforation of a photographic film such as a 135 type film, the perforation pitch is 4.75 mm and the pitch is equal over the entire length of the film. It is processed by the machine. As shown in the front view of FIG. 14, a ram 120 is provided with a transport mechanism for driving a sprocket 130 that intermittently feeds the film a while positioning it, and a pilot 123 and a punch 122 are integrally set and attached. Is provided so as to move up and down the guide surface in the punching main body 121, and a film die 124 including a pilot receiving hole 124b and a die 124a is fixedly provided in the lower part of the main body 121. When the film a transported on the die 124 is stopped in positioning, the ram 120 descends, and first, the pilot 123 enters the leading hole of the film for more accurate film positioning, and then the ram 120 is further moved. The punch 122 enters the die 124a by the lowering to perforate the film, the punched dust passes through the lower portion of the main body 121 and is collected in the waste collecting portion, and the ram 120 rises again and the sprouting is performed. The film is fed by the dot 130, and the film is stopped after being fed at a constant pitch (8 pitches because the number of punches is 8 in the figure), and the accurate positioning perforation is repeated again by the machining of the pilot 123 and the punch 122. I'm trying to keep going.

Since such an up-and-down mechanism of the ram and the intermittent feeding mechanism of the film are periodically carried out at a constant timing and a moving amount, it suffices to carry out from one driving source through a simple driving transmission mechanism.

[0004]

However, in recent years, photographic films having various new format perforation arrangements have been proposed. For example, US Pat.
No. 3,236, JP-A-5216115, JP-A-4-60530, in the film having a part of the perforation pitch is partially non-periodic, the conventional perforating device as described above is not applicable .

As a possible method therefor, there is a method of punching at a time with a unit having a punch and a die having the number of perforations for one roll of photographic film,
Alternatively, there is also a method in which punches are sequentially punched by providing punches and dies as many as one film in a rotary punching device such as JP-B-63-39036.

However, in both cases, the size of the apparatus becomes large and the number of punches and dies is large, so that the equipment cost increases, and it is necessary to replace the unit according to the size when changing the size, which is troublesome. There was a problem.

The present invention perforates a film having such a non-periodic perforation, is not a large and complicated one as described above, but is small, relatively inexpensive, and easily size-changeable. It is an object of the invention to provide a punching device.

[0008]

This object is achieved by the following technical means a or b.

(A) In a photographic film punching device having a partially aperiodic perforation arrangement, the transport of the photographic film, the vertical movement of the pilot pin, and the vertical movement of the punch are independently driven and controlled. A photographic film punching device characterized in that

(B) In the photographic film punching apparatus of item (a), the punch is divided into a plurality of independent units, and the vertical movements of the punches are independently controlled.

[0011]

EXAMPLE One example of the perforation arrangement shape of the photographic film for roll film which is the object of the present invention is shown in the plan view of FIG.

The long perforated film 100 is provided at its rear end portion 141 with a tail portion 142 having an engaging hole 143 for engaging with an engaging claw provided in a slit of a spool winding shaft.
The front end 144 and the rear end 1 to be wound around the camera winding shaft.
41, shooting screen areas 146 are arranged at equal intervals, and perforations 151 are arranged at equal intervals on one side or both sides of the film (in FIG. 1, only one side is shown) corresponding to each screen area 146. It is located in. In addition, adjacent screen areas
A space portion is provided between 146, and the center line of this space portion is called the boundary line 149 of both screen areas 146, and the interval P between adjacent boundary lines is set to be equal to the perforation pitch and constant.

Since the rear end portion 141 and the front end portion 144 have a space for locking the cartridge of the spool and a space for winding around the winding shaft of the camera, they are removed from the image area and no periodic perforation is provided. A boundary line 149 between the leading or final screen and the front end portion 144 or the rear end portion 141 is also determined so that the P is constant, and the sizes of the leading and trailing screen areas of any screen area in the middle. Determined to be the same size as the length A between both boundaries
Is the formation length of the front and rear ends. Then, one standard length L is set in accordance with the specification of each number of shots.
Then, in order to produce a photographic film for roll film of such a format from the long film 100 which has been perforated in the previous step, the above-mentioned one fixed length L
In order to form the shape of the front end and the rear end each time the paper is fed, the hatched region 145 in FIG. 1 is cut off and wound to form a scroll.

One fixed length L also includes a part to be cut off as a cutting margin. In other words, long film 100
Is sent out and cut by operating a cutter for each fixed length L, and a film 140 having a predetermined length and a predetermined format is produced.

Further, in the structure shown in FIG. 1, one perforation is provided at a fixed position for each screen area.
Although not limited thereto, FIG. 3 shows that perforations 151 and 152 are arranged in pairs on each side of each screen area, two per side, and the perforations 152 at the end of the final screen 146 are shown in FIG. With 151 perforations next to, and perforations at the end of the first screen 15
A perforation 152 is arranged next to 1 as shown in FIG.

The above is an example of a format close to various new roll film formats proposed in recent years.
The perforation of the film having a part of such an aperiodic pitch is a perforation apparatus of the present invention to easily and reliably process the long film 100 slit to a predetermined width (for example, 35 mm width) efficiently. Is.

An embodiment of such a photographic film punching apparatus of the present invention will be described below with reference to the drawings together with its operation.

The first embodiment is shown in the front view of FIG. 4 and the control system diagram of FIG.

A lower die set is provided at the bottom of the punching device body 1.
A die 11 provided with a perforation punch receiving hole and a pilot receiving hole is set and fixed, and scraps are made to fall down and accumulate, though not shown.

A ram 22 is provided above the main body 1 so as to be vertically movable along a guide frame 21 of the main body 1 by a drive device 28 (for example, a motor M3). The ram 22 has an upper die set. A first press is constituted by fixing 23 and a punch 24 for perforation punching.

On the other hand, adjacent to it, a second press is provided on the downstream side in the film advancing direction, and the ram 42 is moved up and down along the guide frame 41 of the main body 1 by another driving device 48 (for example, the motor M2). A pilot 44 is directly fixed to the ram 42. The pilot 44 is guided by a slide bearing 25, which is a thrust direction guide member provided in the upper die set 23, while being guided by the first press. The punch 24 is driven at a timing independent of the vertical movement timing.

The punch 24 is repeatedly engaged with the die 11 of the lower die set 10 through the film 100, and the pilot 44 is repeatedly perforated with the film 100 and fitted into and removed from the pilot receiving hole of the die 11. It is supposed to be.

The photographic film 100 is intermittently fed to the surface of the die 11 by a feed roller 52 which is driven by a driving device 58 (for example, a motor M1) at independent timings.

As a result, the film 100 unwound from the original roll of the photographic film 100 slit to a predetermined width is fed a required length, and is positioned by the pilot 44 when necessary, and is required by the punch 24 and the die 11. A large number of perforations are punched out at equal pitches, and the partially set uneven pitch portions are dented, and punching out of equally spaced perforations is repeated, and the number of perforations and the uneven pitch length can be dealt with. The drilling operation can now be carried out accurately with considerable freedom.

For example, as shown in FIG. 1, each image area 146
When perforating a film of a format in which one perforation 151 is provided for each, when the pilot is operated with respect to the leading screen, there is no perforation to be used as a reference, so a considerable force by the pilot deforms the film. Therefore, in the perforation process for the first screen, the operation of the pilot 44 is stopped and the pilot 44 is operated only for the perforations corresponding to the subsequent screens.

Further, as a film feeding drive, various known non-slip feeding means such as a suction roller 52 can be applied without using a sprocket.

With respect to the film having the perforation arrangement shown in FIG. 1, the non-periodic portion A is separately fed by the roller 52, and the periodic portion is perforated while feeding 2 × P at the pitch P. .

Also in the formats shown in FIGS. 2 and 3, punching can be performed by changing the arrangement of punches and providing punches with a small pitch.

Alternatively, for a film of the format shown in FIG. 2, the aperiodic portion A is sent, then the first perforation is carried out, and then the B is sent and the second perforation is carried out, and further 2 × P-B is sent, then B is sent next to B, then B is drilled for the fourth time, and so on.
You can take this method by repeating this cycle until the time comes.

Further, for the film having the perforation arrangement as shown in FIG. 3, the aperiodic portion A is sent, the first perforation is performed, the P-B is further sent, and the second and the P + B are further sent. Next non-periodic part A while punching out the third time
You may take the method of repeating this cycle and drilling until it comes.

Since the apparatus in the embodiment of the front view of FIG. 4 is driven by a circuit centered on the control unit 71 as shown in the control system diagram of FIG. 5, it is a compact punch with a small number of punches and pilots. The equipment allows processing of films of various perforated arrangement formats with considerable freedom.

Next, the second embodiment will be described with reference to the front view of FIG. 6 and FIG.
This will be described with reference to the control system diagram.

In the first embodiment, the driving of the pilot 44 is moved up and down at a different timing from the driving of the punch 24. In this embodiment, the vertical movement of the pilot 44 is driven by the punch 24. This is performed integrally with the attached upper die set 23. However, when the pilot does not perform the positioning action, the actuator 47 of the pilot holder 45 provided in the upper die set 23 is operated so as to move upward so that the spring 47 that pushes down the pilot 44 is activated. Compress and upper die set 23
The pilot 44, which can be moved up and down along the slide bearing 25 provided in the above, is moved upward so as not to come into full contact with the film so that the film is not scratched. On the other hand, when necessary, the actuator 46 is moved downward along the pilot holder 45 to move the spring 47.
Is pressed to increase the pressing force so that the pilot 44 can be sufficiently pressed into the preceding perforation hole so that the film can be positioned without any trouble.

An outline of the control system is performed by a network centered on the control device 72 as shown in the control system diagram of FIG.

Next, a third embodiment will be described with reference to the front view of FIG. 8 and FIG.
This will be described with reference to the control system diagram.

As shown in FIGS. 1, 2 and 3, the non-periodic portion of the film of various formats constitutes the front and rear end forming portion of the length A of the photographic film for roll film, and the cutting margin 145 therein. Is also included. Depending on the convenience of the process, it may be more convenient for the standard length cutting process or the winding process of the subsequent process to form the reference hole or the reference hole having a shape arbitrarily set at this position.

FIG. 8 shows that such a hole can be punched.
In the present embodiment shown in FIG. 2, the punch 34 is provided by a separate drive system according to the punching device main body 1.

The secondary punch 34 is set in an upper die set 33 fixed to a ram 32, and the ram 32 is guided by a guide frame 31 so that it can move up and down, which is an independent drive unit 38. Done by

However, the secondary punch 34 may have a special shape, and it is not limited to a place near the edge of the frame as in a normal perforation, and it may be placed at any position in the width direction. The upper die set 33 is also independent of the upper die set 23 of the punch 24 and the pilot 44, and the die 11 on the upper die set and the lower die set of the secondary punch 34 are independently set at arbitrary positions. It is possible to move and set to.

The outline of this control is performed based on the circuit centered on the control device 73 in the control system diagram shown in FIG.

Next, a fourth embodiment will be described with reference to the front view of FIG. 10 and the control system diagram of FIG.

This means that the punches 24 are arranged in three rows and 3 pitches =
The pilot 44 uses the same actuator operation method as the one shown in the second embodiment, and two sub punches 34 are provided instead of one sub punch 34A. The sub punch represented by 34B is an upper die set 33 fixed to independent rams 32A and 32B.
The rams 32A and 32B are attached to A and 33B and are guided by the guide frames 31A and 31B, respectively, and are driven by independent drive devices 38C and 38D (for example, motors M3 and M4).

Since the apparatus simultaneously feeds 3 × P, the apparatus becomes slightly large, but the production speed is considerably increased.

Further, it becomes possible to cope with the sizes of roll films having different numbers of screen areas.

For example, a multiple of 3 is a perforation logarithm (the number of screen areas = perforation logarithm in the format examples of FIGS. 1 and 3 and perforation logarithm = image number + 1 in the format example of FIG. 2).
The main punch 24 alone is used to perforate the film in FIG. For a film having a perforation logarithm of a multiple of 3 + 1, the main punch 24 and the sub punch 24A are simultaneously moved in the final perforation portion after the series of perforations by the main punch 24. Similarly, for a film having a perforation logarithm of a multiple of 3 + 2, the main punch 24 at the final punching portion
And the sub punches 34A and 34B are simultaneously moved to perform punching.

In this way, by switching the circuit centering on the control device 73 with respect to the number of film screen areas, it is possible to cope with the size change of the roll film having any number of images. This size change can be performed by the same operation for the main punch and the sub punch of the embodiment shown in FIGS. 8 and 12.

Further, the number of the sub punches is not limited to one or two, and it is possible to perforate and punch the roll film by increasing the number of sub punches.

Further, in the fifth embodiment, the punch, pilot and slave punches are driven from one driving device 28 (motor M2) to one-point clutches 48A, 28A and 38A without using independent motors. The control unit 75 is used as a center for the ON / OFF command to each one-point clutch. This makes the mechanism smaller and easier to handle.

In the embodiments of FIGS. 4 to 13 in the present invention, it is important to control the driving of each part at a high speed in order to perform the punching speed equal to or higher than the punching speed in the prior art shown in FIG. I know it, so I show it.

The film feed roll drive was controlled by a servo motor. Further, the main punch drive is controlled by a servo motor, which may be an induction motor. In this case, an absolute rotary encoder is used to synchronize with the control of another drive unit. Further, the pilot pin drive was controlled by a servo motor or a Danforth high-speed linear actuator. Then, the sub punch drive is performed by the servo motor control.

In the present invention, the quality of the film can be improved by independently driving the punch section (which may be separated into the main punch section and the sub punch section in some cases) and the pilot pin.

In the conventional punching method shown in FIG. 14, since the punch 24 and the pilot 44 are attached to the same unit, the upper die set must be lifted at least until the pilot 24 comes out of the film.
It was necessary to make the vertical stroke of 24 relatively large, about 10 mm. Since the upper die set and the punch 24 are comparatively heavy, it is difficult to reduce vibration during high-speed punching, and perforation failure due to premature deterioration of the punch 24 (dimensional accuracy deterioration) and punch moving speed. Due to the high speed, there is a concern that the perforated scrap, which should be pulled out to the lower part of the lower die set, is sucked up, and the scrap is lifted to cause deterioration of quality such as scratches on the film image surface. However, the punch part of the upper die set, which is heavy and causes vibration, is separated and driven from the pilot part that requires a relatively long vertical stroke, so that the minimum vertical stroke required to punch the punch part of the upper die set ( It is possible to reduce vibration by holding it down to, for example, about 2 mm, and it is possible to maintain precision in long-term use, such as punch and die clearances, and maintain the sharpness of perforations (maintain dimensional precision).
Became possible.

Further, by reducing the vertical stroke of the punch section, the moving speed of the punch can be suppressed to be extremely small for the same machine speed, so that the punch scraps may be closely attached or sucked up, and the scrap may be generated on the film image surface. It has become possible to prevent it.

[0054]

According to the present invention, since the perforated portion can be downsized, the size of the entire apparatus can be suppressed to be small,
The installation space is reduced and the space can be effectively used. Also, the number of punches and dies can be reduced, and the equipment cost is reduced. Further, it is possible to easily cope with various roll film size changes (distinguishing between 24 and 36 sheets, etc.) almost simply by setting the number of actuations without any trouble, and the productivity is greatly improved.

Further, since the vertical movement of the punch can be minimized and the vibration can be suppressed in spite of the high speed punching, it is expected that the punching dimension can be maintained with high precision and the sharpness can be improved. Along with this, the punch moving speed can be minimized, so that it is possible to prevent the film from being scratched due to the perforation residue, which was a concern in the conventional high-speed perforation.

[Brief description of drawings]

FIG. 1 is a plan view showing an example of a film format used in the present invention.

FIG. 2 is a plan view showing another example of the film format used in the present invention.

FIG. 3 is a plan view showing another example of a film format used in the present invention.

FIG. 4 is a front view of the embodiment of the present invention.

5 is a control system diagram of the apparatus shown in FIG.

FIG. 6 is a front view of another embodiment of the present invention.

7 is a control system diagram of the apparatus shown in FIG.

FIG. 8 is a front view of another embodiment of the present invention.

9 is a control system diagram of the apparatus shown in FIG.

FIG. 10 is a front view of an embodiment of the present invention in which a sub punch is added.

11 is a control system diagram of the apparatus shown in FIG.

FIG. 12 is a front view of the device of the present invention with the clutch engaged.

13 is a control system diagram of the apparatus of FIG.

FIG. 14 is a front view showing a conventional film punching device.

[Explanation of symbols]

 1 Punching device body 10 Lower die set 11 Dies 21, 21A, 21B, 31, 31A, 31B, 41 Guide frame 22, 22A, 22B, 32, 42 Ram 23, 23A, 23B, 33 Upper die set 24 Punch 25 Slide bearing 28,38,38C, 38D, 48 Drive device 28A, 38A, 48A One-point clutch 34,34A, 34B Secondary punch 44 Pilot 45 Pilot holder 46 Actuator 47 Spring 52 Feed roller 58 Drive motor 71,72,73,74 , 75 Controller 100 Film 140 Scaled film 141 Rear edge 144 Front edge 146 Screen area 151, 152 Perforation

Claims (2)

[Claims] 1. A photographic film punching device having a partially aperiodic perforation arrangement, wherein the transport of the photographic film, the vertical movement of a pilot pin, and the vertical movement of a punch are independently driven and controlled. A photographic film punching device characterized in that 2. The photographic film punching apparatus according to claim 1, wherein the punch is divided into a plurality of independent units, and the vertical movements of the punches are independently controlled.