JP2000003024A - Cutter for photographic film - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make the pressure sensitive adhesive of a splice tape coupling photographic films hardly adhere to the side surface of the edge of a cutter by forming a recessed part for storing the pressure sensitive adhesive transferred from the splice tape on the side surface. SOLUTION: The linear cutter 110 is equipped with an upper edge 112 rockably around the axial center X so as to cross a negative film carrying line and a lower edge 114 fixed on a film carrying path. The recessed part 112c for storing the pressure sensitive adhesive transferred to the upper edge 112 side from the splice tape 2A is formed along the edge part 112b turned downward and linearly provided on the upper edge 112 on the side surface 112a of the upper edge 112. In order to surely perform operation for pushing the pressure sensitive adhesive into the recessed part 112c, the edge part 114a of the lower edge 114 gets into the area of the recessed part 112c when the upper edge 112 exists at the lowermost position.

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 photographic film cutter having a pair of blades which can move relative to each other, and each of the pair of blades gradually overlaps according to the relative movement. The present invention relates to a photographic film cutter having a side surface.

[0002]

2. Description of the Related Art A blade of a photographic film cutter of this type is generally formed by polishing hardened steel to increase the hardness so that a very smooth surface is obtained on the side surface. ing.

[0003]

However, when this photographic film cutter is used to cut a photographic film connected with a splice tape having an adhesive layer on one side together with the splice tape, the cutter blade is used for cutting. At least one of the side surfaces (i.e., the side surface in contact with the cross section after cutting) not only the main body of the photographic film and the splice tape, but also the adhesive layer located between the photographic film and the splice tape, A phenomenon was observed in which a part of the adhesive layer was torn off and transferred to the side surface of the blade. This adhesive material transferred to the side surface of the blade, after that, due to its adhesiveness, the sliding properties of a pair of blades, and
It reduces the slipperiness between the photographic film and the blade, and consequently puts an excessive load on the drive system that relatively moves the blade.
Since problems such as defective cutting occur, there is room for improvement. Therefore, when such a photographic film cutter is incorporated in an apparatus for processing a large amount of photographic film (such as a development processing apparatus for simultaneous printing), the film processing operation is performed so that the above problem does not reach a serious level. For example, it is necessary to frequently use an organic solvent or the like to clean the side surface of the blade, for example, by interrupting the operation, and this has resulted in a reduction in the processing efficiency of the photographic film.

Accordingly, it is an object of the present invention, in view of the above-mentioned drawbacks of the prior art photographic film cutters exemplified above, to be used for cutting photographic films connected by splice tape together with the splice tape. Adhesive material of the splice tape does not easily adhere to the side surface that comes into contact with the cross-section after cutting the side surface of the cutter blade.Therefore, there is less tendency to impose unnecessary load on the drive system that moves the blade and to cause poor cutting. In particular, it is an object of the present invention to provide a photographic film cutter which requires less frequent inspection or cleaning of the side surface of the blade, and which can extract the original processing capacity from a photographic film processing apparatus incorporating the blade.

[0005]

In order to achieve the above object, a photographic film cutter according to claim 1 of the present invention has, on its side, an adhesive material transferred from a splice tape connecting photographic films. A feature is that a concave portion is formed.

[0006] In order to have such a characteristic configuration,
In the photographic film cutter according to claim 1 of the present invention,
When the photographic film connected by the splice tape is used to cut the splice tape together, even if the adhesive material is transferred from the splice tape to the side surface of the cutter blade, the adhesive material is used to cut the pair of blades for cutting. Each time the relative movement is made, the end surface of the cut film or spliced tape body is pushed into the recess formed in the side surface, and the surface that comes into contact with the cut cross section of the cutter blade has an adhesive material. Since the state of high slipperiness is maintained, unnecessary load is imposed on the drive system for moving the blade, and there is less tendency to cause cutting failure, and as a result, the frequency of inspecting or cleaning the side surface of the blade is reduced. Thus, the original processing capability of the photographic film processing apparatus can be brought out.

[0007] Each of the pair of blades has an edge portion that moves on the side surface of the other blade in accordance with the relative movement, and when the pair of blades is most overlapped in accordance with the relative movement, the pair of blades has the edge. If one edge portion is configured to enter the region of the concave portion formed on the other of the pair of blades, the adhesive material is cut into the cut film or the splice tape body every time the pair of blades moves relative to each other. By the end face of, it is more reliably pushed into the recess.

[0008] The pair of blades include a fixed blade having an edge portion extending toward a film transport surface through which a photographic film passes, which is connected to each other by a splice tape having an adhesive layer, and a photographic based on relative movement. A movable blade having an edge portion that gradually enters the film transport surface while pressing the film against the fixed blade, and a photographic film through which the fixed blade passes if the concave portion is formed along the edge portion of the movable blade. Can be supported from below, and the level of the photographic film can be consistently maintained both when moving the photographic film with respect to the photographic film cutter and when cutting the photographic film with the photographic film cutter. Can be kept constant, which is convenient. And, at the time of cutting, it cuts into the cross section of the cut photographic film and splice tape,
Since the side surface of the movable blade is mainly used, the concave portion may be formed only on the side surface of the movable blade.

The relative movement performed between the fixed blade and the movable blade can be obtained from the motor as compared with a configuration in which the movable blade moves in parallel if the movable blade is moved by swinging the movable blade around the axis. It can be easily used simply by decelerating the easy rotational driving force.

[0010] Other features and advantages of the present invention include:
The description will become apparent from the description of the embodiment using the drawings.

[0011]

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, a negative film supply unit 10 is provided with a negative reel 11 for winding 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 is ordered by a customer and has been developed, and a splice tape. 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 through 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 includes 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 be able to operate the negative film 2. 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 with the splice tape 2A in the transverse direction together with the splice tape 2A, 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
A shift part of the connection of the negative film 2 by the splice tape 2A is cut off (if the shift part is left, it is likely to be caught on the transport path to the exposure unit 20 on the downstream side). Next, by the straight cutter 110,
As shown in FIG. 6, the negative film 2 is cut by the splice tape 2A at the joining portion, and cut again into order units. (In the cutting by the linear cutter 110, a portion composed of only the splice tape 2A in principle is cut. Disconnected). The straight cutter 110 is fixed on an upper blade 112 (an example of a movable blade) provided to be swingable around the axis X so as to cross the negative film transport line based on the swing, and on a film transport path. Lower blade 114
(An example of a fixed blade). As shown in FIG. 7A, the lower blade 114 has an edge 114a extending along the lower surface of the film transport surface. As shown in FIG. 7-b, the upper blade 112 moves the lower blade 1 based on the swing.
By descending to 14, the negative film 2 is cut transversely. At this time, since the adhesive layer 2b of the splice tape 2A faces the upper surface side as shown in FIG. 7, the side surface 112a of the upper blade 112 immediately after cutting (including the adhesive layer 2b) includes the splice tape 2A. Although it comes into contact with the cross section, the lower blade 114 only supports the splice tape 2A from its main body side throughout the cutting, and does not contact the adhesive layer 2b in principle.

A splice tape 2 is attached to the side surface 112a of the upper blade 112 which overlaps the lower blade 114 based on the swing.
A concave portion 112 c for accumulating the adhesive transferred from A to the upper blade 112 side is formed along a downward edge portion 112 b linearly provided on the upper blade 112. When the upper blade 112 is at the lowest position (the state shown in FIG. 7-b), the edge 1
14a is configured to enter the region of the concave portion 112c. The R cutter 130 includes a pair of left and right elevable upper blades 13 provided on both sides of the negative film transport line.
2, 132 and a pair of lower blades 134, 134 (an example of a fixed blade) fixed to both sides of the film transport path. The lower blade 134 has an edge portion extending along the lower surface of the film transport surface. Upper blade 132 is lower blade 134
, Both sides of the negative film 2 are cut out in an arc shape. This arc-shaped notch is formed by a splice portion of the negative film 2 and a splice sensor 12.
b. Incidentally, assuming that the R cutter 130 cuts the splice tape 2 </ b> A together with the shift part of the connection of the negative film 2, the R cutter 130 is cut.
A concave portion for accumulating the adhesive transferred from the splice tape 2A may be formed in the upper blade 130a.

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 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 subjected to 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 in 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 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, and the conveyer mechanism by the horizontal conveyor 53. 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 includes, 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 circulating 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, and the tray 100 runs 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).

If necessary, the negative film 2 having the notch 2a formed thereon is cut by a negative cutter 13 at a joining area detected by the splice sensor 12b (first, both sides are formed into an arc shape by an 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 negative film 2 for one order 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.

[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 showing the movement of a straight cutter.

[Explanation of symbols]

 2 Negative film 2A Splice tape 10 Negative film supply unit 13 Negative cutter 14 Screen detection sensor 20 Exposure unit 110 Straight cutter 112 Upper blade 112a Side surface 112b Edge 112c Recess 114 Lower blade 130 R cutter

Claims (4)

[Claims] A pair of blades movable relative to each other;
Each of the pair of blades is a photographic film cutter having a side surface that gradually overlaps according to the relative movement, wherein the side surface has a concave portion for storing an adhesive material transferred from a splice tape connecting the photographic films. A formed photographic film cutter. 2. The pair of blades both have an edge portion that moves on the side surface of the other blade in accordance with the relative movement, and the pair of blades most overlap each other in accordance with the relative movement. 2. The photographic film cutter according to claim 1, wherein, in the state, the edge portion of one of the pair of blades is configured to enter a region of the concave portion formed on the other of the pair of blades. 3. 3. A fixed blade having an edge portion extending toward a film transport surface through which a photographic film passes, the pair of blades being connected to each other by the splice tape having an adhesive layer; 3. A movable blade having an edge portion that gradually enters the film transport surface while pressing a photographic film against the fixed blade based on the photographic film, wherein the concave portion is formed along the edge portion of the movable blade. The cutter for photographic film according to 1. 4. The photographic film cutter according to claim 3, wherein the relative movement is swinging of the movable blade around an axis.