JP2722958B2 - Film feeder - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a film supply device for supplying an undeveloped film to a developing section of an automatic film developing machine.

[0002]

2. Description of the Related Art In general, when an undeveloped film is developed by an automatic film developing machine, as shown in FIG.
To feed the film F to the developing section ahead of the reader L.

Here, the leader L is made of a synthetic resin sheet and has flexibility.
Are formed at equal intervals. The leader L is conveyed in the longitudinal direction by the engagement of the sprocket incorporated in the developing section and the square hole H.

As an automatic film developing machine for developing the film F, a plurality of readers L shown in FIG. 7 to which the film F is connected are set in a magazine, and the readers L in the magazine are sequentially sent to a developing unit to develop the film. The processing is conventionally known (see JP-A-63-23155).

[0005]

In the above-mentioned automatic film developing machine, the processing capacity is low because of batch processing in which a plurality of films are made into one unit. There is a problem that is difficult.

SUMMARY OF THE INVENTION The present invention solves the above-mentioned problems, improves the development processing capacity by automatically and continuously supplying a film to a film developing section, and makes it easy to add or replace a film. A technical task is to be able to do so.

[0007]

In order to solve the above-mentioned problems, according to the present invention, a leading end of a film drawn from a patrone is connected to a reader, and the film is fed to a developing section with the leading leader. The supply device includes a film setting chamber provided adjacent to the developing unit, and a film supply chamber provided adjacent to the film setting chamber and having an open front surface. Can be set in a state where they are lined up and down, and each time the topmost leader is sent out, a leader transfer device that transfers the remaining leaders upward and holds the topmost reader at a predetermined height, and A leader delivery device that transports the top reader of the reader to the film set chamber is provided, and the leader sent to the film set chamber is sent to the developing unit. No than is adopted the configuration in which the reader infeed device.

[0008]

In the film feeding apparatus having the above-mentioned structure, a plurality of readers are arranged in the vertical direction by manually supplying the readers to the reader transporting apparatus, and the plurality of readers are transported upward by the operation of the reader transporting apparatus. The operation of holding the uppermost reader at a predetermined height and the operation of sending the uppermost reader to the developing unit by the operation of the reader sending device and the reader sending device are repeatedly performed. The next reader is replenished to the transfer device, and the film is continuously supplied to the developing unit.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS.

As shown in FIG. 1, inside a film insertion box 2 provided adjacent to a developing section 1, a film set chamber 3 and a film supply chamber 4 are provided up and down. A communication port 6 is formed in the partition 5 between them.

The communication port 6 is opened and closed by a shutter 7.

FIG. 4 shows a moving mechanism of the shutter 7. This moving mechanism projects a pin 10 on the outer peripheral portion of a disk 9 rotated by a motor 8, and inserts the pin 10 into an elongated hole 11 of a shutter 7 movably supported with respect to the communication port 6,
The shutter 7 is moved with respect to the communication port 6 by the rotation of the disk 9.

The film supply chamber 4 has a lid 12 which can be opened and closed freely.
Is provided on the front side, and a reader transfer device 20 for supporting the reader L shown in FIG. 7 substantially horizontally and transferring it upward is provided therein.

As shown in FIG. 2, the leader transfer device 20 comprises a pair of guide bar moving devices 21 provided on both sides in the film supply chamber 4.

Each guide bar moving device 21 has a pair of rotating bodies 23 attached to both ends of a pair of shafts 22 arranged vertically, and an endless transport band 24 is passed between the rotating bodies 23 vertically opposed. A large number of guide bars 25 are attached at equal intervals between the front and rear endless transport bands 24, and guide grooves 26 into which both sides of the reader L are inserted are provided on one side surface of each guide bar 25.

Here, a sprocket or a toothed pulley can be used as the rotating body 23. On the other hand, a chain or a toothed belt can be used as the endless transport belt 24.

The pair of guide bar moving devices 21 are arranged such that the guide bars 25 are opposed to each other on the left and right, and the distance corresponding to the mounting pitch of the guide bars 25 by a single motor 27 is defined as a stroke amount in the direction of the arrow in FIG. Are transferred intermittently.

Above the leader transfer device 20, a leader delivery device 30 for transporting the uppermost reader L of the leader L transported upward by the leader transfer device 20 in the longitudinal direction, and the leader delivery device 30 A first leader guide 40 for guiding the leader L to be sent out from the communication port 6 into the film setting chamber 3 is provided.

As shown in FIG. 1, the leader feeding device 30 is provided with a pair of rotating members 31, 31 such as pulleys in the front and rear in the film supply chamber 4, and an endless belt such as a belt stretched between the rotating members 31, 31. The transport belt 32 is moved in the direction of the arrow by the drive of the motor 33, and the projection 3
4 pushes the center of the trailing edge of the leader L.

[0020] Here, the motor 33 operates on the basis of the delivery start signal reader L, the limit switch LS ₁ provided in the transport path of the projection 34 is adapted to stop to be actuated by the projections 34.

The first leader guide 40 is composed of a plurality of plate members 41 arranged in parallel at an interval through which the patrone P can pass.
Each plate 41 is formed with an arcuate edge 42 centered on the front rotating body 31 of the leader feeding device 30, and the arcuate edge 42 guides the movement of the leader L.

The film setting chamber 3 communicates with the developing unit 1 through a passage 13. In the film setting chamber 3, a second leader guide 50a and a third leader guide 50b for guiding the fed leader L to the developing unit 1 are provided.
Is provided.

Each of the second leader guide 50a and the third leader guide 50b is composed of a plurality of plate bodies 51 arranged in parallel with an interval through which the patrone P can pass similarly to the first leader guide 40.

The second leader guide 50a and the third leader guide 50b are arranged back and forth with an interval allowing the reader L to pass therethrough, and arcuate guide edges formed on opposing edges of the plate body 51 of each of the leader guides 50a and 50b. The reader L is guided toward the developing unit 1 by 52.

In the transfer path of the leader L guided to the developing unit 1 by the second leader guide 50a and the third leader guide 50b, a patrone holder 6 for supporting the patrone P is provided.
0 is provided.

As shown in FIG. 5, the patrone holder 60 is supported along two guide shafts 61 so as to be movable by a constant stroke. The patrone holder 60 holds the patrone P in a state of supporting the patrone P.
When a predetermined tension is applied to the film F pulled out of the film F, the film F moves forward toward the developing unit 1, and when the tensile force by the film F is released, the film F is moved backward by a spring (not shown).

On the front side of the patrone holder 60, a cutter device 70 for cutting the film and a feeding device 80 for feeding the reader L to the developing section 1 are provided in order in the transport direction of the reader L.

As shown in FIG. 6, an upper blade 72 is swingably attached to a fixed lower blade 71, and a cutter device 70 is provided on the outer peripheral portion of a plate 74 in a pin hole 73 formed in the upper blade 72. The plate 74 is rotated by the operation of the rotary solenoid 76.

As shown in FIG. 1, the reader feeding device 80 is provided with a pair of pressure rollers 83 below a drive roller 82 which is driven to rotate by a motor (not shown), and the pressure roller 83 is driven by the operation of a solenoid 84. The roller L is brought into pressure contact with the roller 82, and the leader L inserted between the rollers 82 and 83 is sent to the developing unit 1 by the rotation of the driving roller 82.

An upper part of a cartridge discharge chute 90 faces behind the cartridge holder 60. The chute 90 receives the patrone P discharged backward from the patrone holder 60 due to the inertia at the time of stopping the retraction of the patrone holder 60 and drops and discharges it to a predetermined position.

The film supply apparatus shown in the embodiment has the above-mentioned structure. When the film F is fed into the developing section 1, the lid 12 of the film supply chamber 4 is opened, and both sides of the reader L shown in FIG. The film feeders are inserted into the guide grooves 26 of the guide bars 25 facing each other on the left and right sides of the transfer device 20, and the start switch for feeding the film is turned on with the reader L set between each pair of left and right guide bars 25 arranged in the vertical direction.

Here, in a state where the reader L is set between the pair of left and right guide bars 25, the pair of uppermost guide bars 25 of the pair of left and right guide bars 25 arranged vertically.
When the reader L is not set in the middle, the start switch is actuated to operate the motor 2 of the reader transfer device 20.
7 operates, and a pair of left and right guide bar moving devices 21
Operate simultaneously to convey each of the readers L arranged in the vertical direction upward with a distance corresponding to the pitch of the guide bar 25 as a movement amount.

The uppermost reader L is the reader sending device 3
0, the detector 27 not shown detects the reader L, the motor 27 of the reader transfer device 20 is stopped, and at the same time, the motor 33 of the reader delivery device 30 is stopped.
Operates to move the endless transport belt 32 in the direction of the arrow in FIG.

For this reason, the uppermost leader L is moved forward by the center of the trailing edge thereof being pushed by the projection 34 provided on the endless transport belt 32, and is guided by the first leader guide 40 to be in the open state. 6 is fed into the film setting chamber 3 and the second leader guide 50a and the third leader guide 50b.
And is inserted between the driving roller 82 and the pressure roller 83 of the reader feeding device 80.

When the reader L is inserted between the driving roller 82 and the pressing roller 83, the pressing roller 83
, And pushes the leader L against the drive roller 82, and the leader L is transported to the developing unit 1 by the rotation of the rollers 82 and 83.

When the reader L is transferred as described above, the reader L
The patrone P connected through the film F moves together with the reader L, and when the patrone P passes through the communication port 6, the shutter 7 moves to close the communication port 6.

The patrone P is placed in the patrone holder 60.
, The cartridge P is stopped by being supported by the cartridge holder 60, the leader L is transferred to the cartridge P in a stopped state, the film F in the cartridge P is sequentially pulled out, and the developing unit is moved together with the leader L. It is sent to 1.

When the rear end of the film F is pulled out of the patrone P, the rear end of the film F is pulled out of the patrone P.
, The tension of the film F increases due to the movement of the film F, and the film F
The patrone P is pulled by the
Moves toward the developing unit 1 along the guide shaft 61.

When the patrone holder 60 moves forward to a predetermined position and stops, the cutter device 70 is activated to operate the film F.
Is cut, and the cut causes the cartridge holder 60 to retreat by the elasticity of the spring.

When the patrone holder 60 retreats to a predetermined position and stops, the patrone P supported by the patrone holder 60 is discharged into the rearward chute 90 by inertia, and discharged to the predetermined position by the chute 90.

When the leader L in the film supply chamber 4 is being fed into the film setting chamber 3, the plurality of readers L arranged in the vertical direction by the operation of the leader transfer device 20 move a distance corresponding to the pitch of the guide bar 25. When the uppermost reader L is held at a predetermined height by being transported upward as a stroke amount, the leader transfer device 20 stops.

At this time, since a pair of left and right empty guide bars 25 faces the lowermost portion of the leader transfer path, the guide bars 2
The next reader L can be added between the five.

When the first film F is completely fed into the developing section 1, the shutter 7 opens the communication port 6, and the reader feeding device 30 is operated again, so that the uppermost reader L of the readers L arranged vertically. Then, the reader L is continuously fed into the developing unit 1 by repeating the above operation.

When supplying the film F to the developing unit 1 and wishing to change the development processing order of the film F, or when developing another film F earlier by interruption, the leader supported by the reader transport device 20 is used. The leader L is pulled out to replace the leader L, or the leader L to which another film F is connected is inserted at the position of the pulled out leader L.

[0045]

As described above, in the film feeder according to the present invention, when the leader feeder provided in the film feed chamber feeds the leader and the subsequent film to the developing section, the leader feeder becomes the leader transporter. When the highest reader is sent out into the film set chamber, and the highest leader is sent out, the leader transfer device conveys the remaining readers upward and raises the highest reader to a predetermined height. In this case, the leader and the film can be automatically supplied to the developing unit, and when the leaders vertically arranged in the leader transfer device are conveyed above a predetermined stroke, the next leader is replenished to the leader transfer device. Therefore, the film can be continuously supplied to the developing section.

Further, since the reader can be freely inserted into and removed from the reader transfer device, the sending order of the readers sent to the developing section can be changed arbitrarily, or another reader can be set in the reader transfer device by interruption. be able to.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional front view showing an embodiment of a film supply apparatus according to the present invention.

FIG. 2 is a side view of the above.

FIG. 3 is a perspective view of the reader transfer device according to the first embodiment;

FIG. 4 is a perspective view showing a shutter moving mechanism according to the embodiment.

FIG. 5 is a perspective view of a mounting portion of the patrone holder according to the first embodiment;

FIG. 6 is a perspective view showing the cutter device according to the first embodiment;

FIG. 7 is a perspective view of a film transport reader.

[Explanation of symbols]

 L Leader P Patrone F Film 1 Developing unit 3 Film setting room 4 Film supply room 20 Leader transfer device 30 Leader sending device 80 Leader sending device

Claims (1)

(57) [Claims] 1. A film supply device for connecting a leading end of a film drawn from a patrone to a reader and feeding the film to a developing unit with the leader preceding the film setting unit, wherein a film setting chamber provided adjacent to the developing unit; A film supply chamber provided adjacent to the film setting chamber and having an open front surface; a plurality of readers can be set in the film supply chamber in a vertically arranged state; A leader transfer device that transfers the remaining leaders upward to hold the topmost leader at a predetermined height every time the reading is performed, and a leader delivery device that transfers the topmost leader of the vertically arranged readers to the film set chamber. A film feeder provided in the film set chamber for feeding a leader fed thereto to a developing section.