JPH11327053A - Cutter for photographic film - Google Patents

Abstract

PROBLEM TO BE SOLVED: To restrain tendency that the cut fraction of a photographic film adheres to the edge body of a cutter even though the edge body is used for a purpose that the needless protruding part of the film is cut by sticking a discharge film body on at least one of a pair of edge bodies. SOLUTION: An edge surface 132a horizontally extending toward the crossing direction of the film 2 is formed on a movable upper edge body 132, and a horizontal planar edge surface 134a is formed on a fixed lower edge body 134. A discharge paper 160 is stuck to the each edge surface 132a of the body 132 in order to restrain a phenomenon that the separated fraction 2b adheres especially to the body 132 by static electricity. Thus, electrifying tendency is drastically reduced, so that the the greater part of the fraction 2b of the photographic film freely falls below the device just after the fraction is produced without adhering to the body 132 of the cutter. Consequently, a problem that the part of the adhering fraction 2b is carried to an exposure part with the photographic film while being stuck to the image surface of the photographic film main body and disturbs exposure operation can be remarkably reduced.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a photographic film cutter, and more particularly, to a cutter for a photographic film, comprising a pair of blades movable relative to each other. The present invention relates to a photographic film cutter for cutting a photographic film sandwiched between the photographic films.

[0002]

2. Description of the Related Art A blade of a photographic film cutter of this type is generally formed by polishing hardened steel so as to obtain a very smooth surface on the side surface. It is used for the purpose of cutting a long photographic film into short pieces and cutting off unnecessary portions of the photographic film, for example, projecting portions.

[0003]

However, in particular, in a photographic processing apparatus for exposing and printing negative films connected to each other with a splice tape or the like on photographic paper, the corners of the films due to a shift in the width direction between the films are reduced. If a photographic film cutter is used to cut off the formed protrusion with a cutter attached to the upstream part of the device in order to prevent it from colliding with various parts of the device, a small photographic film cut off Pieces (typical dimensions of pieces are, for example, about 15 mm long and about 3 m wide
m) did not fall freely and tended to adhere to the blade body of the cutter or the like. If this adhesion phenomenon is left unattended, the problem is that the number of adhered fragments gradually increases and hinders smooth cutting, or that the exposed fragments remain with some of the adhered fragments stuck to the image surface of the photographic film body. In some cases, such a problem may occur that the exposure operation may be interrupted by the exposure. This adhesion is considered to be due to the strong charge of the cut-off film fragment, and the operation speed of the blade at the time of cutting is high, and the adhesion tends to be more marked as the number of cuts per unit time is higher. is there. Conventionally, as a countermeasure against the above-mentioned adhesion, a method of providing a static elimination brush in a film transport path so that the tip thereof is in contact with a film surface, or a method of blowing off a film fragment with air or the like has been tried, but a clear effect is obtained. It was not possible to obtain a sufficient measure.

Accordingly, it is an object of the present invention to address the above-mentioned drawbacks of the prior art photographic film cutters exemplified above, even if used for the purpose of cutting off unnecessary protrusions, the fragments of the photographic film cut off. He said that there was little tendency to adhere to the blade of the cutter, and that a large number of fragments attached to the blade prevented smooth cutting, and that the fragments were carried to the exposure unit while they remained attached to the image surface of the photographic film body. An object of the present invention is to provide a photographic film cutter with less concern.

[0005]

According to a first aspect of the present invention, there is provided a photographic film cutter according to the present invention, wherein a discharge film is attached to at least one of a pair of blades. It has a characteristic configuration.

[0006] In order to have such a characteristic configuration,
In the photographic film cutter according to claim 1 of the present invention,
Since the static electricity (that is, the ubiquity of charge) held by the cut photographic film fragments is discharged outside the photographic film fragments (e.g., it is considered to be discharged into the air) through the dischargeable film body, The tendency of the photographic film fragments to be charged is greatly reduced, and most of the photographic film fragments fall freely below the apparatus immediately after generation without adhering to the blade of the cutter. Therefore, the problem that the attached fragments hinder the cutting operation of the cutter, or the problem that a part of the attached fragments are carried to the exposure unit together with being stuck to the image surface of the photographic film main body and hinder the exposure operation. Has decreased significantly. Object (here, photographic film fragment)
It is not necessary for the object to come into contact with the dischargeable film so that the static electricity held by the object can be discharged by the action of the dischargeable film. Released from. In this case, the static electricity held by the object once moves to the dischargeable film body through the air (this air movement is particularly easy if the moisture in the air is large),
Immediately after the movement, it is considered that the dischargeable film is further released into the air.

[0007] Further, if the dischargeable film is configured to be attached to a position where the photographic film is pressed against the dischargeable film based on the movement of the pair of blades during cutting, the photographic film fragments can be formed. Since the stored static electricity does not fly in the air and moves to the discharge film by direct contact, even if the humidity in the air is very low and air discharge is unlikely to occur, the static electricity generated in the photographic film (Ie, the ubiquity of charge) is reliably and quickly eliminated.

Specifically, each of the pair of blades is provided with a blade surface that intersects with the surface of the photographic film while contacting the surface of the photographic film based on the movement of the pair of blades during cutting. And, if the discharge film is configured to be attached to at least one of the pair of blade surfaces, when the blade surfaces at the time of cutting intersect, the photographic film is always pressed against the discharge film, Static electricity generated in the photographic film is reliably eliminated.

The pair of blades are provided with a first blade having a first blade surface for supporting a main body of a photographic film, and intersecting the first blade surface while pressing the main body of the photographic film against the first blade surface. The second blade body having a second blade surface that separates unnecessary portions from the main body of the photographic film, and the discharge film body is attached to the second blade surface. Since the contact state between the unnecessary portion to be discharged and the discharge film attached to the second blade surface is maintained until immediately before the unnecessary portion is separated from the photographic film main body, the contact portion is attached only to the first blade surface. The static electricity generated in the photographic film is more reliably eliminated than in the case of the configuration.

[0010] The pair of blades includes a first blade having a first blade surface for supporting a main body of the photographic film, and intersecting the first blade surface while pressing the main body of the photographic film against the first blade surface. Is a second blade having a second blade surface for separating an unnecessary portion from the main body of the photographic film, and the first blade has a first blade.
A plate-like body having a front surface forming a blade surface and a rear surface facing the blade surface is provided, and the dischargeable film body comes into contact with an unnecessary portion immediately after being cut off by the intersection of the second blade surface or contacts the electrode. If it is configured to be attached to the back surface of the plate-like body so that it can be approached, the unnecessary portion that is about to be separated is attached to the back surface of the plate-like body when it is crossed with this back surface by the second blade surface. Since the end surface of the discharged discharge film body is in contact with or in close proximity to the end surface, the static electricity generated in the photographic film is more reliably eliminated based on the contact or in proximity to the end surface. If it is assumed that the mechanism of generation of the static electricity, that is, the bias of the electric charge carried by the unnecessary portion is caused by the phenomenon that the film is cut by the shearing itself, the end face of the unnecessary portion to be separated immediately after the shearing. Is highly likely to be the location where the electric charge is most concentrated, and it is considered that an operation of contacting or very close to this location with the dischargeable film is particularly effective for eliminating static electricity.

In determining the thickness of the plate-like body, an unnecessary portion before being separated from the main body of the photographic film is a second part.
If it is determined that both the discharge film adhered to the second blade surface of the blade and the discharge film adhered to the back surface of the plate-shaped body of the first blade are simultaneously in contact with or extremely close to each other. The charge accumulated in the unnecessary portion is transferred to the discharge film on the second blade surface of the second blade via the upper surface of the unnecessary portion of the film;
Since a plurality of discharge paths, that is, a path toward the discharge film on the back surface of the plate-like body of the first blade body is provided through the lower surface of the unnecessary portion or the end surface which has just been sheared, the unnecessary portion of the film can be further reduced. It is separated from the main body in a state where the electrification is completely eliminated, and the free fall rate increases.

The first blade is a fixed blade supporting the photographic film from below, and the second blade is displaced from above with respect to the first blade to perform cutting. Cutting is always performed consistently under its own weight in a stable state mounted on the first blade body.

If the discharge film is made of paper or cloth mixed with conductive organic fibers, the conductive organic fibers can be securely attached to the blade. In addition, since paper or cloth mixed with conductive organic fibers inherently has sufficient elasticity, the volume ratio of the mixed conductive organic fibers is very small, and the conductive organic fibers are conductive in a normal state where cutting is not performed. Even if the organic fibers are not in contact with the blade to which the discharge film is attached, if pressed between the blade and the photographic film based on the relative movement of the blade at the time of cutting, at least one of the few conductive organic fibers One end is reliably pressed against the photographic film based on the inherent elastic deformation of paper or cloth. As a result, a reliable discharge means can be provided while using a relatively small amount of the conductive organic fibers.

If the discharge film made of paper or cloth partially mixed with conductive organic fibers is adhered to the blade with a double-sided tape, it is difficult to mount the discharge film using a liquid adhesive or the like. In comparison, the conductive organic fibers can be securely attached to the surface of the blade without any loss of the elasticity of the paper or cloth. Further, the operation of replacing the conductive organic fiber once attached with a new one can be easily performed.

[0015] Other features and advantages of the present invention include:
The description will become apparent from the description of the embodiment using the drawings.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows an entire photographic processing apparatus 1 according to the present invention. A negative film 2 and a photographic paper 3 conveyed in the photographic processing apparatus 1 in accordance with various processes.
2 is schematically shown in FIG. The photographic processing apparatus 1 includes a negative film supply unit 10, an exposure unit 20 that prints the image of the negative film 2 on a photographic paper 3 drawn from a paper magazine 4, and a developing unit that develops the photographic paper 3 exposed by the exposure unit 20. A developing section 30 for processing, and a drying section 4 for drying the photographic paper 3 developed by the developing section 30
0, a print discharge unit 50 that cuts the dried photographic paper 3 into a predetermined length and discharges it as a print (the photographic paper 3 cut into a predetermined length is referred to as a print 3).
The negative film 2 used in the exposure unit 20 is cut, and if necessary, the negative film 2 is inserted into a negative sheet, and the negative film discharge unit 60 to be discharged, and one unit loaded from the negative film discharge unit 60 (for easy understanding) In order to
(The unit may be read as one order representing the processing unit for one negative film ordered by the customer.) Negative film 2 and one unit print carried in from print discharge unit 50 are compared as a finished product. Further, there is provided a conveyor mechanism 70 as a collating and conveying means for combining the two articles and conveying the finished article to a finished product take-out position by an operator.

As shown in detail in FIG. 3, the negative film supply unit 10 is provided with a negative reel 11 which winds up to 100 pieces of the negative film 2 connected by a splice tape 2A which is an example of a connecting member. The loading rollers 11a driven by the loading motor 11b can be pulled out from the negative reels 11 which can be loaded up to the book and sequentially selected.

The negative film 2 described in this specification is defined in a plurality of meanings, and includes a negative film 2 of one order unit which has been ordered by a customer and which has been subjected to a development process, and a spliced tape having the negative film 2 attached thereto. 2A
Long negative film 2 which is connected to each other in order and lengthened
And a short negative film 2 cut from the long negative film 2 again in units of one order and shortened, and
A piece negative 2 cut from the short negative film 2 by several frames is included. A bar code sheet is attached to the negative film 2 in units of one order, and the bar code records unique information such as a film number of the negative film 2 of one order.
Further, the negative film supply unit 10 checks a bar code reader 12a for reading a bar code along a negative film transport line formed by a film guide guide (not shown), and checks the outline of the frame image of the negative film 2. And a negative cutter 13 for cutting the negative film every one order in the area of the splice tape 2A.

As shown in FIG. 5, the screen detection sensor 14
Is composed of a light-emitting device and a light-receiving device. The detection data is sent to a frame image determining means (not shown) of the controller 5, and the outline of the frame image is determined based on the amount of light transmitted through the negative film 2. As a result, the position of the frame image is confirmed. At this time, if the outline of the frame image cannot be detected, since the positioning of the negative film 2 based on the position of the frame image is impossible, it is necessary to mark the position of the frame image visually with an operator. A notcher mechanism 15 as a marking forming means is provided between the screen detection sensor 14 and the negative cutter 13. The notch mechanism 15 includes a notch 15a which forms a notch 2a as a positioning marking on the negative film 2 by descending from above the negative film 2, and a suction nozzle on the lower surface of the negative film 2 for sucking notch chips generated by the notch 15a. And a debris suction pump 15b. Notch driving by the notcher 15a is performed via notch control means (not shown) of the controller 5 by manual input from an operator console 6b connected to the controller 5 by an operator. During this notch driving operation, the notch control means controls the dust suction pump 15b.
Is operating, and the notch chips punched by the notcher 15a are immediately sucked.

During the notch driving operation, the movement of the negative film 2 performed by the operator is performed by a negative transport means 17 comprising a notch alignment motor 17b and a notch alignment roller 17a, and a notch alignment motor control means (not shown) of the controller 5. ), The operation console 6
Based on the manual input from b, it can be performed independently of other negative film transport mechanisms. By moving the negative film 2 back and forth, a predetermined position of the negative film 2 can be adjusted to the notcher 15a. At this time, the operator views the movement of the negative film 2 while using the console 6b.
A TV camera 16 is provided above the notch mechanism 15 so as to allow the user to operate the camera. The TV camera 16 is adjusted so as to capture the frame image of the negative film 2 and the notch forming point by the notcher 15a. The image of the TV camera 16 is monitored by using an image switching means (not shown) of the controller 5. The input line of the monitor 6a is switched so as to be displayed on the monitor 6a. Further, the positioning movement of the negative film 2 with respect to the notcher 15a is performed only in the area of the notcher mechanism 15, and in order not to affect other processing steps, both sides of the notcher mechanism 15 with respect to the negative film transport direction. Are provided with a first loop forming portion 18a and a second loop forming portion 18b, respectively.

As shown schematically in FIG. 6, the negative cutter 13 includes a linear cutter 110 for cutting a joint portion of the negative films 2 by the splice tape 2A in the transverse direction together with the splice tape 2A, and a negative cutter 13. An R cutter 130 is provided for cutting both sides of the joint between the films 2 by the splice tape 2A in an arc shape. First, the negative film 2 is
The spliced tape 2 </ b> A cuts off the portion where the connection of the negative film 2 is cut off (if the deviated portion is left without being separated, it is likely to be caught on the transport path to the exposure unit 20 on the downstream side). Next, linear cutter 1
10 cuts the spliced tape 2A at the joint portion of the negative film 2 and is cut again in order units (in the cutting by the linear cutter 110,
In principle, a portion composed of only the splice tape 2A is cut, and at this time, the adhesive layer of the splice tape 2A faces the upper surface side). The linear cutter 110 is moved along the axis X so as to cross the negative film transport line based on the swing.
An upper blade body 112 (an example of a movable blade) provided to be able to swing around, and a lower blade body 114 fixed on a film transport path.
(An example of a fixed blade). The lower blade body 114 has an edge portion extending along the lower surface of the film transport surface. The upper blade 112 is moved to the lower blade 114 based on the swing.
The negative film 2 is cut in the transverse direction. The side surface 112a (shaded portion in FIG. 6) of the upper blade body 112 which overlaps with the lower blade body 114 based on the swing is formed by a polytetrafluoroethylene film as a surface treatment for reducing the adhesion of the splice tape to the adhesive layer. Is applied. The R cutter 130 includes a pair of left and right upper blades 132, 132 (an example of a second blade) provided on both sides of a negative film transport line, and a pair of lower blades fixed on both sides of the film transport path. Body 134,
134 (an example of a first blade body and an example of a fixed blade body). The upper blades 132, 132 are lower blades 134, 13
By descending toward 4, both sides of the negative film 2 are cut out in an arc shape. This arc-shaped notch is used for the splice portion of the negative film 2 and the splice sensor 1.
2b. In one operation to form this notch, a total of four fragments 2b, 2b,. . Occurs.

As shown in FIG.
Is installed on a rigid frame structure F made of steel. The frame structure F has a first structure extending vertically with a space between each other.
And second vertical plates 140a and 140b and first and second horizontal plates 136 and 138 connecting the vertical plates 140a and 140b, and a cylindrical guide member 136a extends downward from the first horizontal plate 136. The lower blades 134 are fixed on the second horizontal plate 138. On the other hand, the upper blade 132, 1
32 is fixed to a movable horizontal plate 133 arranged between the first and second vertical plates 140a, 140b. At the center of the movable horizontal plate 133, the movable horizontal plate 133 is guided in the vertical direction accurately by sliding on the peripheral surface of the cylindrical guide member 136a of the first horizontal plate 136 without rattling. A circular through hole 133a is formed. Outside the second vertical plate 140b, the third vertical plate 1 is separated by a space.
40c, and a driving motor 1
50 are attached. The rotational driving force obtained from the driving motor 150 is applied to the first vertical plate 140a via the first and second gears 148a and 148b arranged in the space between the second vertical plate 140b and the third vertical plate 149c. And the output shaft 146 which is rotatably supported through the second vertical plate 140b about a horizontal axis Y. Output shaft 14
6, the first and second vertical plates 140a, 140
The eccentric disks 144 and 144 are integrally connected on each outside of b. The eccentric disks 144 and 144 rotate around the axis Y by the driving force of the driving motor 150,
The axis P determined by the peripheral surfaces of the eccentric disks 144 and 144 is eccentric from the axis Y by a distance d. The rotational movement of the eccentric disks 144 and 144
The upper and lower blades 132, 132 convert the upper and lower blades 132, 132 into a reciprocating motion. That is, as shown in FIG. 8, the crank plates 142, 142
Shafts 133b, 133 extending horizontally from the movable horizontal plate 133
On the other hand, on the outer peripheral surface of the eccentric disks 144, 144, the outer peripheral surfaces of the eccentric disks 144, 144 are provided near the lower ends of the crank plates 142, 142 so as to be able to swing. An inner peripheral surface is formed. Therefore, in accordance with the rotation of the eccentric disks 144 and 144 by the drive motor 150, the upper blades 132 and 132
The distance P from the top dead center to the bottom dead center of the outer circumference center P of the 4,144, that is, reciprocates up and down with a width of 2d.

FIG. 9 shows the movement from the top dead center to the bottom dead center of the upper blades 132, 132 obtained by the above-mentioned mechanism. The solid line in FIG. The state at the dead center, the two-dot chain line in FIG. 9A and FIG. 9B
Indicates a state at the bottom dead center. As can be clearly understood from FIGS. 10A, 10B, and 10C which are partial enlarged views corresponding to FIGS. 9A and 9B, upper blade bodies 132 and 13 as movable second blade bodies.
2, a second blade surface 132a extending horizontally in the transverse direction of the film 2 is formed, and the lower blade members 134, 134 as the fixed first blade members have a horizontal flat second surface. One blade surface 134a is formed. While cutting both sides of the negative film 2 in an arc shape, the second blade surface 132a presses the unnecessary portion 2b of the photographic film 2 downward on the surface based on the downward movement of the upper blade members 132, 132. By approaching the first blade surface 134a and finally crossing the first blade surface 134a downward (an example of intersection), the unnecessary portion 2b of the photographic film 2 is sheared and finally separated from the main body of the photographic film 2. Fall. Upper blades 132, 13
As shown in FIG. 12, the second blade surface 132a has a mountain-shaped inclined surface that is not strictly horizontal but is high at the center when viewed from the cross direction of the film 2 passing therethrough. This is because the movement of the upper blades 132, 132 with respect to the lower blades 134, 134 is parallel movement in the vertical direction, but in order from the edge of the film 2 in the same manner as the principle of the blades of scissors based on swinging. (Here, from the outside in the longitudinal direction of the film 2 to the center,
That is, the film can be smoothly sheared and cut in a form in which plastic deformation is not applied to the main body of the film 2 (in other words, toward the joint between the films 2). As shown in FIGS. 9 to 13 and particularly well shown in FIGS. 11 to 13, in order to suppress the phenomenon that the separated pieces 2 b adhere to the upper blades 132, 132 due to static electricity, in particular, the upper blades 132, 132 are removed. 132 second cutting surface 1
Discharge paper 160 is attached to 32a and 132a with an adhesive double-sided tape (not shown). Second blade surface 13
The discharge paper 160 affixed to 2a is pressed against the unnecessary portion 2b of the photographic film 2 in particular during cutting during cutting, and the fragment 2b that has begun to be sheared until immediately before it is completely separated from the main body. The state of contact with the discharge paper 160 is maintained. Even if the fragment 2b has a relatively large shape, the discharge paper 160 contacts the discharge blade 160 as shown in FIG.
The discharge paper 160 is attached to the entire area of the discharge paper 160 so that even when the fragment 2b has a very small shape, the discharge paper 160 is securely in contact with the discharge paper 160, as shown in FIG.
Each second blade surface 132a, 132a of the upper blade body 132, 132
They extend almost to the center end of each other.

As shown in FIGS. 10 and 15, a plate-like body 134F extends in the form of a horizontal flange from the vicinity of the upper end of the lower blade 134, and a first blade surface 134a of the lower blade 134. Is provided as an upper surface of the plate-like body 134F. Then, as shown in FIGS. 14 to 16,
The discharge paper 162 is also attached to a region extending from the lower surface 134b of the plate-shaped member 134F to the vertical wall surface 134c of the lower blade member 134 facing outward. Since the plate-like body 134F is made sufficiently thin (about 2 mm in thickness) as long as rigidity can be secured, the downward movement of the second blade surface 132a of the upper blade body 132, that is, the first movement of the lower blade body 134 Blade surface 134
The unnecessary portion 2b immediately after being sheared by the intersection with the a contacts the discharge paper 162 attached to the lower surface 134b of the plate-like body 134F of the lower blade 134 or (at a distance of 2 mm or less).
An opportunity to be very close is given (state immediately after FIG. 10-b). In other words, the end surface (cut surface) of the unnecessary portion 2b that has just been formed by the shearing is not completely separated from the photographic film main body before the lower surface 134b of the lower blade 134.
, And at this time, the upper surface of the unnecessary portion 2b still maintains the contact of the discharge paper 160 attached to the second blade surface 132a of the upper blade body 132. . The discharge papers 160 and 162 used here are used.
Is a sheet-shaped paper made by squeezing conductive organic fibers between ordinary paper fibers, and is commercially available as discharge paper or another name. This may be attached with a double-sided tape or the like, or a commercially available one with an adhesive layer attached to one side may be used. Conductive organic fibers are known in which an extremely thin layer of copper sulfide is formed on the surface of acrylic or nylon fibers using a dyeing technique, which has high flexibility and can be easily incorporated into paper fibers. It can be made and does not impair the flexibility and processability of the original paper.

Below the negative cutter 13, two waste boxes 13d for storing cutting waste are provided.
The cutting waste generated based on the cutting by 30 is dropped by the waste sorting guide 13e to one of the two waste boxes 13d according to the type of the cutting waste. Negative cutter 13
A loop forming portion 18c is also provided on the downstream side of
One order of the negative film 2 is prevented from straddling between the cutting process by the negative cutter 13 and the exposure process as a post-process. Reference numeral 19 denotes an intermediate insertion portion for inserting a piece negative or the like in the middle of the negative film transport line. By removing the hatched guide 19a, the negative film 2 can be inserted. Function as an upper guide for An exposure unit 20 is located downstream of the intermediate insertion unit 19 in the negative film transport direction.
Is arranged.

As shown in FIG. 4, the exposure section 20 is provided with a film reading device 21 including a reading light source 21a, a mirror tunnel 21b, and an image pickup device 21c on the upstream side in the film conveyance direction. On the side, an exposure device 22 including an exposure light source 22a, a light control filter 22b, a mirror tunnel 22c, a negative mask 22d, a printing lens 22e, and a shutter 22f is provided. The negative film supply unit 10 passes through the exposure unit 20 to discharge the negative. Part 6
There is provided a roller 23a for transporting the negative film 2 to zero and a motor 23b for driving the roller 23a.
Further, in the area of the film reading device 21, a screen detection sensor 28a for positioning a desired frame image of the negative film 2 on the film reading device 21 and a notcher 15a when the frame image is inappropriate for positioning are formed. Notch sensor 29a for reading the notch 2a for positioning is provided.
A screen detection sensor 28b for positioning a desired frame image of the negative film 2 on the exposure device 22, and a notch sensor 29b for reading the notch 2a formed by the notcher 15a for positioning when the frame image is inappropriate for positioning. Is provided.

The negative film 2 conveyed by the roller 23a is first read by the film reading device 21 while being positioned by using either the screen detection sensor 28a or the notch sensor 29a.
It is sent to the controller 5. Exposure control means (not shown) of the controller 5 calculates exposure conditions for printing the image of the negative film 2 on the photographic paper 3 based on the image information received from the film reader 21.
The frame image of the corresponding negative film 2 is a negative mask 22d.
The screen detection sensor 28b or the notch sensor 29b
When the positioning is performed using any one of the above, the light control filter 22b and the shutter 2 are controlled based on the exposure condition previously obtained.
2f is controlled, and the printing paper 3 is exposed. Further, the controller 5 processes the image information of the negative film 2 read by the film reading device 21 and displays on the monitor 6a a simulated image of an image obtained when the photographic paper 3 is printed under the determined exposure conditions. The operator can observe the simulated image on the monitor 6a and correct the exposure conditions from the console 6b as necessary.

The negative film 2 which has been subjected to the exposure processing in the exposure unit 20 is converted into six frames or four frames by a negative cutter 25 provided in a negative discharge unit 60 disposed downstream of the exposure device 22 in the film transport direction. Each frame is cut, and the negative film 2 of one order becomes a plurality of negative pieces 2. Also in the area of the negative cutter 25, a screen detection sensor 28c for positioning a desired frame image of the negative film 2 on the negative cutter 25, and a notch 2a formed by the notcher 15a when the frame image is inappropriate for positioning. Notch sensor 29c that reads the position for positioning
Is provided. The negative pieces 2 are sent out to the conveyor mechanism 70 in units of one order. Depending on the specifications, the negative pieces 2 are inserted into the negative sheets by a negative sheet insertion device (not shown), and the negative sheets are folded and sent out to the conveyor mechanism 70. The positioning and transport of the negative film 2 in the exposure unit 20 are controlled by negative film transport control means (not shown) of the controller 5.

Although not shown, the developing section 30 is provided with a plurality of developing tanks, and after the image of the negative film 2 is printed by the exposure section 20,
The photographic paper 3 is developed by being sequentially passed through the collection processing section 26 by a roller 24a and a motor 24b for driving the roller 24a and through a development processing tank of a development processing section 30. Note that the exposure unit 20 and the development processing unit 30 are located in front of the development processing unit 30 despite the presence of the loop.
In the event that a situation occurs in which the photographic paper 3 cannot be continuously fed between the two, a cutter 27 for cutting the photographic paper 3 in an emergency evacuation is provided.

The photographic printing paper 3 after the development processing is dried in the drying unit 40, sent to the print discharge unit 50, and cut by the paper cutter 51 to become the finished print 3. It is sent to 70. Reference numeral 54 denotes a photographic paper bypass path for discharging the photographic paper 3 in a non-cut state when the photographic paper 3 cannot be sent out to the conveyor mechanism 70 due to some trouble. A series of conveyance of the photographic paper 3 or the print 3 and branching to the photographic paper bypass path 54 are controlled by photographic paper conveyance control means (not shown) of the controller 5.

The conveyor mechanism 70, as shown in FIG.
A plurality of trays 100 that are of a tray conveyor type and are driven by a driving unit 90 that transmits a conveying force while being guided by a circulation guide path 80 are provided. A negative film loading station 71 for loading the negative film 2 from the negative film discharge unit 60 disposed at a lower position of the photographic processing apparatus 1 is provided on the transport line determined by the circulation guide path 80.
A standby station 72; a print carry-in station 73 for carrying in the print 3 from the print discharge unit 50 arranged at a high position of the photoprocessing device 1; and a collation station for collating the negative film 2 and the print 3 for each unit. 74 are formed.

The circling guide path 80 is composed of a pair of right and left rails having a substantially circular cross section and a connecting body connecting the rails at a predetermined interval. The tray 100 travels across the rails. A traveling unit (not shown) is provided.

Next, the operation of the photographic processing apparatus 1 will be described. First, the negative reel 11 around which the developed long negative film 2 is wound is set, and the leading end of the long negative film 2 or a reader attached to the leading end is set. Is drawn out to the negative film transport line by the loading roller 11a. The negative film 2 entering the negative film transport line passes through the first loop forming portion 18a due to the guide member (not shown) being extended horizontally,
A frame image is detected by the screen detection sensor 14.
If the detected frame image is determined to be inappropriate for positioning by the frame image determining means, a notch 2a indicating the position of the frame image is formed by the notcher mechanism 15. In this case, if the frame image adjacent to the frame image determined to be inappropriate for positioning is appropriate for positioning, the inappropriate frame image is positioned with reference to this adjacent suitable frame image. It is possible,
If there is a certain distance between the inappropriate frame image and the appropriate frame image, an error will occur.
a is formed in advance. To form the notch 2a, the operator operates the key of the console 6b by operating the notch alignment motor 17b so that a predetermined position for the corresponding frame image is located directly below the notcher 15a while watching the monitor 6a. At this time, the first loop forming unit 18a and the second loop forming unit 18b
The difference between the movement of the negative film 2 in the region of the notch mechanism 15 and the movement of the negative film 2 in the other region is absorbed by the loop formation by retracting the guide member (not shown).

The negative film 2 having the notch 2a formed as necessary is cut by the negative cutter 13 at the joining region detected by the splice sensor 12b (first, both sides are formed into an arc shape by the R cutter 130). Thereafter, the film is cut by a linear cutter 110) and sent to the exposure unit 20 as a short negative film 2 of one order. In the exposure section 20, first, the outline of the frame image is detected by the screen detection sensor 28a of the film reading device 21, and based on the detection result, the negative film transport control means (not shown) of the controller 5 drives and controls the motor 23b. The frame image to be read is adjusted to the image pickup device 21c. For a frame image whose outline is not detected by the screen detection sensor 28a, the notch 2a for positioning is formed in advance by the notcher mechanism 15, so that
By detecting the notch 2a with the notch sensor 29a, the frame image to be read is matched with the image pickup device 21c.

Also in the exposure device 22, for a frame image whose outline is not detected by the screen detection sensor 28b, the frame image to be exposed is adjusted to the exposure position based on the notch detection by the notch sensor 29b. Similarly, even in the step of cutting the negative piece 2 by the negative cutter 25, for a frame image whose outline is not detected by the screen detection sensor 28c, the frame image between the frame image and the frame image is detected based on the notch detection by the notch sensor 29c. Adjust the cutting position exactly to the part.

The one-order negative film 2 made into the negative piece 2 by the negative cutter 25 is loaded on the tray 100 at the negative film loading station 71, and then combined with the print 3 of the same order at the print loading station 73, and collated. It is sent to the station 74. In the collation station 74, after the operator confirms the collation state of each tray, the print 3 and the piece negative 2 are packed in the DP bag 7. This verification station 74
Also has a monitor 6a and a control console 6b,
An operator at the collation station checks the notch mechanism 1 for the frame image determined to be inappropriate for positioning by the negative film supply unit 10 while watching the monitor 6a.
By operating the control console 6b, a notch 2a for positioning can be provided.

[Another Embodiment] <1> A cloth containing conductive organic fibers obtained by weaving polyester fibers or the like into a cloth instead of weaving the conductive organic fibers into paper, or a conductive fiber. A nonwoven fabric mixed with a conductive organic fiber may be used.

<2> Further, as the dischargeable film used in the present invention, in addition to the sheet-like material mixed with the conductive organic fiber as described above, metal fiber, carbon fiber, or a composite fiber thereof may be used. Those woven into a cloth or formed into a nonwoven fabric may be used.

[Brief description of the drawings]

FIG. 1 is a perspective view of a photographic processing apparatus according to the present invention.

FIG. 2 is a schematic diagram showing the flow of a negative film and photographic paper in the photographic processing apparatus of FIG.

FIG. 3 is a schematic diagram showing a configuration of a negative film supply unit.

FIG. 4 is a schematic diagram showing a configuration of an exposure unit.

FIG. 5 is a perspective view showing a notcher mechanism.

FIG. 6 is a schematic view of a negative cutter of a negative film supply unit.

FIG. 7 is a schematic view of an R cutter viewed along a film transport path.

FIG. 8 is a schematic view of an R cutter as viewed along a transverse direction of the film.

FIG. 9 is a schematic diagram showing the upper dead center and the lower dead center of the upper blade body in the R cutter.

FIG. 10 is an enlarged view showing a cutting process by an R cutter.

FIG. 11 is a perspective view showing an upper blade of an R cutter.

FIG. 12 is an elevation view of the upper blade of the R cutter as viewed along the transverse direction of the film.

FIG. 13 is a bottom view of the upper blade of the R cutter.

FIG. 14 is a perspective view showing a lower blade of an R cutter.

FIG. 15 is a cross-sectional view of the lower blade on the left side of the R cutter as viewed along the film transport path.

FIG. 16 is an elevation view of the lower blade of the R cutter as viewed along the transverse direction of the film.

[Explanation of symbols]

 2 Negative Film 2A Splice Tape 3 Photographic Paper 10 Negative Film Supply Unit 13 Negative Cutter 14 Screen Detection Sensor 20 Exposure Unit 130 R Cutter 132 Upper Blade 134 Lower Blade 160 Discharge Paper

Claims (9)

[Claims] 1. A photographic film cutter comprising a pair of blades movable relative to each other, and cutting a photographic film sandwiched between the pair of blades according to the relative movement of the pair of blades. A cutter for a photographic film, wherein a discharge film is attached to at least one of the pair of blades. 2. The discharge film body according to claim 1, wherein the photographic film is affixed to the discharge film body based on the movement of the pair of blades during the cutting. A photographic film cutter as described. 3. Each of the pair of blades is provided with blade surfaces that intersect with each other while contacting a surface of a photographic film based on the movement of the pair of blades during the cutting. The photographic film cutter according to claim 1, wherein the dischargeable film is attached to at least one of the pair of blade surfaces. 4. The first blade body having a first blade surface supporting a main body of a photographic film, and the first blade body pressing the main body of a photographic film against the first blade surface. A second blade body having a second blade surface that cuts off an unnecessary portion from the main body of the photographic film by intersecting with a surface,
The photographic film cutter according to any one of claims 1 to 3, wherein the dischargeable film body is attached to the second blade surface. 5. The pair of blades includes a first blade having a first blade surface that supports a main body of a photographic film, and the first blade having the main body of the photographic film pressed against the first blade surface. A second blade body having a second blade surface that cuts off an unnecessary portion from the main body of the photographic film by intersecting with a surface,
The first blade body is provided with a plate-shaped body having a front surface forming the first blade surface and a back surface facing the first blade surface, and the dischargeable film body is provided on the second blade surface. The photographic film cutter according to claim 1, wherein the cutter is attached to the back surface of the plate-shaped body of the first blade body so as to be able to come into contact with or be extremely close to an unnecessary part immediately after being separated by intersection. 6. The thickness of the plate-like body is such that the unnecessary portion before being separated from the main body of the photographic film is the second portion.
The discharge film member attached to the second blade surface of the blade member and the first discharge member;
The photographic film cutter according to claim 5, wherein the cutter is determined so as to be in simultaneous contact with or extremely close to both of the blade and the discharge film attached to the back surface of the plate-shaped body. 7. The cutting device according to claim 4, wherein the first blade is a fixed blade that supports the photographic film from below, and the second blade is displaced from above with respect to the first blade to perform the cutting. 6. The photographic film cutter according to 5. 8. The photographic film cutter according to claim 2, wherein the dischargeable film body is a paper or a cloth in which conductive organic fibers are partially cut. 9. The photographic film cutter according to claim 8, wherein the discharge film body made of paper or cloth mixed with conductive organic fibers is attached to the blade body with a double-sided tape.