JP2715801B2 - 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] Incidentally, in the above-mentioned automatic film developing machine, there is a problem that the processing capacity is low due to the batch processing in which a plurality of films are regarded as one unit.

In order to solve the problem, the present applicant has already proposed an automatic film developing machine capable of continuously processing a large number of films (Japanese Patent Application Laid-Open No. Hei 3 (1991) -1991).
216990).

FIGS. 1 to 3 schematically show a film supply device of an automatic film developing machine which has been already proposed by the present applicant. This film supply device is a film insertion box 1
A film supply chamber 2 and a film setting chamber 3 are provided inside the film supply chamber, and an input port 5 opened and closed by a lid 4 is formed on the top plate of the film supply chamber 2, and is inserted into the film supply chamber 2 from the input port 5. 7, the horizontal feeder 20 for transporting the reader L conveyed to the lower position toward the back of the film supply chamber 2, and the lower feeder 10 for conveying the reader L conveyed to the lower position. A communication port 5 that is transported upward by the fed reader L and is opened and closed by a shutter 51.
Upper feed transport device 3 that feeds from 0 into the film setting chamber 3
0 is provided.

[0008] Here, the downward feeder 10 mounts an elevator 13 on a timing belt 12 stretched between the upper and lower pulleys 11, 11, and inserts an insertion groove 14 above the elevator 13.
The timing belt 12 is moved by the motor 15 to move the elevator 13 up and down, and the reader L having the lower edge inserted into the insertion groove 14 of the elevator 13 is conveyed downward.

On the other hand, the lateral feeder 20 has pulleys 22 mounted on the upper and lower portions of a pair of front and rear rotating shafts 21, a belt 23 is stretched between the front and rear pulleys 22, and has a support groove 24 between the upper and lower belts 23. It is composed of a pair of left and right leader guide moving devices 26, 26 having leader guide bars 25 attached at equal intervals. The leader guide moving devices 26, 26 are simultaneously driven by a single motor 27 to move the leader guide 25 to the leader guide 25. The feed amount is the amount corresponding to the interval of FIG.
Is moved intermittently in the direction of the arrow
The reader L whose side is inserted into the support groove 24 is intermittently transported toward the back of the film supply chamber 2.

When the reader L is transported downward by the downward feed transport device 10, both sides are inserted into the support grooves 24 of the leader guide 25. In addition, the elevator 13 of the lower feed conveyance device 10 moves further downward than the state where the reader L is supported at the bottom of the support groove 24, and the lower edge of the leader L is inserted into the elevator 13 by the movement. It comes out of the groove 14.

Further, the upper feed conveyor 30 mounts an elevator 33 on a timing belt 32 stretched between upper and lower pulleys 31, 31, and inserts an insertion groove 3 above the elevator 33.
4, the timing belt 32 is moved by the motor 35 to move the elevating table 33 up and down, and when the elevating table 33 is raised, the lower edge of the reader L is inserted into the insertion groove 34 so that the reader L faces upward. Transport.

In the film setting chamber 3, a reader L fed by the upper feed conveying device 30 is supplied with a developing unit 60.
Guides 70 and 71 and the reader L described above to the developing unit 6
The feeding device 72 feeds the leader L to the developing unit 60 by the feeding device 72, and the cartridge P moving with the leader L is transferred to the film setting chamber 3.
Received by the patrone holder 73 provided inside the
When the rear end of the film F sent to the developing unit 60 is pulled out of the cartridge P, the cutter device 7
In step 4, the film F is cut.

The above-mentioned film supply apparatus has a feature that the film can be continuously developed because the reader L can be inserted into the input port 5 sequentially.

[0014]

By the way, the film F connected to the reader L is taken up by the patrone P, and it is conceivable that the patrone P falls when the patrone P is hung with only the leader L. However, if a shock is applied while the cartridge P is suspended, the cartridge P may fall and the film F may be pulled out.

Here, when the leader L is fed toward the film setting chamber 3 by the upper feed conveyance device 30 of the film supply device, the cartridge P falls and the film F
When the film F is pulled out, the film F having a strong curl is twisted, and is transported in a twisted state. Therefore, there is a risk that the film F is damaged due to contact or a fold is formed. There is.

The present invention is a further improvement of the film supply device already proposed. In the case where the cartridge is dropped and the film is pulled out when the leader is conveyed to the film setting chamber by the upper feed conveyance device as the film setting device. Another technical object is to prevent the film from being sent to the developing section.

[0017]

In order to solve the above-mentioned problems, in the present invention, there is provided a film detecting device for detecting the drawing of a film into a transfer path of a reader fed from a film supply chamber to a film setting chamber by a film setting device.
A film detector, and the detection center from the film detector enters.
It is a force, the fill that the film has been pulled out
That is, a configuration is employed in which a control device is provided for stopping the feeding device provided in the film setting chamber when a film detector detects the detection.

[0018]

According to the present invention, as described above, when the cartridge is dropped from the film supply chamber into the film setting chamber, the cartridge is dropped and the film is pulled out, and the film detector detects that the film is pulled out. Since the feeding device is stopped, it is possible to prevent the film from being fed into the developing unit and being damaged.

[0019]

Embodiments of the present invention will be described below with reference to the drawings. The overall configuration of the film supply device is shown in FIG.
3 to FIG. 3, and a description thereof will be omitted.

As shown in FIG. 1 and FIG. 4, the leader L, which is fed from the film supply chamber 2 to the film setting chamber 3 by the upper feed conveyance device 30, is placed in the transfer path.
From the patrone P conveyed upward with the film F
Is provided with a film detector 36 for detecting whether or not is pulled out.

The film detector 36 comprises a light emitting element 36a and a light receiving element 36b. When the patrone P falls during the upward transport of the reader L and the film F is pulled out, and the film detector 36 detects the film F, the film detector 36 detects the film F. The detection signal is input to the control device 37 shown in FIG. The controller 37 displays on the display 38 that the film F is being pulled out, and operates the drive circuit 39 to stop the feeding device 72 provided in the film setting chamber 3.

Here, the feeding device 72 is provided with a solenoid 7 below a driving roller 75 driven by a motor M.
A pressing roller 77 that is moved up and down by the roller 6 is provided.
The reader L sent between the positions 5 and 77 is sent to the developing unit 60, and the drive circuit 39 stops the motor M to stop the feed of the reader L.

Instead of stopping the motor M, the solenoid 76 may be de-energized and the pressure roller 77 may be separated from the drive roller 75 to stop feeding the reader L.

Now, the reader L is transported upward by the upward feed transport device 30, and the leading end of the reader L is
5 and the pressure roller 77, the controller 37
Starts the processing shown in FIG. 6 (processing "100" and subsequent processing are omitted).

First, the control device 37 sets the internal timer t to A
Seconds are set (101). Here, the set time A of the internal timer t is a time until the leader L is completely fed into the film setting chamber 3 by the upper feed conveyance device 30. After the timer t is set, when the motor M operates (102) and A seconds have elapsed and the time is up (1).
03) If there is a detection signal from the film detector 36, the film F exists between the light emitting element 36a and the light receiving element 36b of the film detector 36, and the film F is pulled out of the cartridge P. Stop M (1
05), and displays the necessity of film removal on the display 38 (106).

When the film F is removed, a dark bag is put on the film setting chamber 3, the upper cover 78 of the setting chamber 3 is opened, and the film setting chamber 3 is held in the light-shielding state with the dark bag, and the groping state is set. To take in the film F and the reader L inside the dark bag.

On the other hand, when there is no detection signal from the film detector 36, since there is no film F between the light emitting element 36a and the light receiving element 36b of the film detector 36, a normal film transport process is performed (107).

The various transporting devices for transporting the leader in the film supply chamber are not limited to those of the embodiment.

[0029]

As described above, according to the present invention, the film supply apparatus according to the present invention, when the cartridge from the reader the film to fall is pulled out when the leader is fed into the film set chamber from the film supply chamber, the film
Detector detects this, for stopping the control device the infeed device can film is prevented from being fed to the developing unit, prevents the given damage such as scratch the film in advance, Safety can be improved.

[Brief description of the drawings]

FIG. 1 is a schematic diagram of a film supply device according to the present invention.

FIG. 2 is a cross-sectional plan view of the above.

FIG. 3 is a perspective view showing the horizontal transport device according to the first embodiment;

FIG. 4 is an enlarged view of the above.

FIG. 5 is a block diagram of an embodiment.

FIG. 6 is a flowchart showing the operation of the embodiment.

FIG. 7 is a perspective view of a reader.

[Explanation of symbols]

P Patrone F Film L Reader 2 Film supply chamber 3 Film set chamber 5 Input port 30 Upper feeder 36 Film detector 37 Controller 72 Feeder

Claims (2)

(57) [Claims] 1. A leading end of a film drawn from a patrone is connected to a reader, the reader is supplied from an input port into a film supply chamber, and is conveyed toward the back of the film supply chamber. In the film supply apparatus, the film is fed into the developing section by the operation of a feeding device provided in the film setting chamber. Film detector to detect drawers
The detection signal from the film detector is input.
It is, the film test that the film is pulled out
When the output device detects control to stop the feeding device
Film supply apparatus characterized in that a device. 2. The film supply device according to claim 1, further comprising a notifying unit for notifying that the film is being pulled out based on a detection signal of a film detector.