JP2715802B2 - 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. 6 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 above problem, the present applicant has already proposed an automatic film developing machine capable of continuously processing a large number of films (Japanese Patent Application No. Hei.
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. 6, a downward feed transport device 10 that transports the reader L downward, a lateral transport device 30 that transports the reader L transported to the lower limit position toward the depth of the film supply chamber 2, and a depth feeder of the film supply chamber 2. A communication port 5 that is transported upward by the fed reader L and is opened and closed by a shutter 51.
Upper feeder 4 for feeding the film from 0 to the film setting chamber
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, as shown in FIGS. 2 and 3, the transverse feeder 30 has pulleys 32 mounted on the upper and lower portions of a pair of front and rear rotating shafts 31 and a belt 33 is passed between the front and rear pulleys 32. A pair of left and right leader guide moving devices 36, 36 in which leader guides 35 each having a support groove 34 between the belts 33 are attached at equal intervals, are driven simultaneously by a single motor 37. The reader guide 35 is intermittently moved in the direction of the arrow in FIG. 2, and the reader L, whose side is inserted into the support groove 34 of the leader guide 35, 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 34 of the leader guide 35. In addition, the elevator 13 of the lower feed conveyance device 30 moves further downward than the state where the leader L is supported at the bottom of the support groove 34, 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 feeder 40 mounts a lift 43 on a timing belt 42 extending between the upper and lower pulleys 41, 41, and inserts an insertion groove 4 above the lift 43.
4, the timing belt 42 is moved by the motor 45 to move the elevating table 43 up and down, and when the elevating table 43 is raised, the lower edge of the reader L is inserted into the insertion groove 44 so that the reader L faces upward. Transport.

In the film setting chamber 3, a reader L fed by the upper feed conveyance device 40 is supplied with a developing unit 60.
, And a feeding device 72 for feeding the reader L to the developing unit 60. The feeding device 72 feeds the reader L to the developing unit 60, and the cartridge P that moves together with the leader L is transferred to the film setting chamber. When the rear end of the film F received by the cartridge holder 73 provided inside the cartridge 3 and sent to the developing unit 60 together with the leader L is pulled out of the cartridge P, the film F is cut by the cutter device 74. ing.

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]

As shown in FIG. 7, some of the leaders L inserted into the slot 5 are abnormal, curled in the width direction. If supplied, it can become clogged during transfer.

Conventionally, the use of the abnormal leader L is prohibited by the judgment of the operator. However, since the judgment is made by the operator, there is a case where a judgment error occurs or the erroneous use is performed.

An object of the present invention is to solve the above-mentioned inconvenience and to prevent the curled abnormal reader from being sent to the developing section even when used erroneously.

[0017]

In order to solve the above-mentioned problems, according to the present invention, there is provided a detector for detecting a curl amount of a reader in a transport path of the reader sent by a moving device .
When the detector detects a reader curling above a specified value , the transport of the reader is stopped.
He adopted the concept.

[0018]

According to the present invention, as described above, the amount of curl of the reader is detected by the detector, and when the amount of curl is detected to be an abnormal leader having a specified value or more, the conveyance is stopped. Can be prevented from being accidentally sent to the developing section.

[0019]

Embodiments of the present invention will be described below with reference to the drawings.

The overall structure of the film supply device is shown in FIG.
3 to FIG. 3, and FIG. 4 is a plan view of the above-mentioned lower feed conveyance device. In FIG. 4, the elevator 13
Are supported so as to be able to move up and down along guide grooves 17 formed on the inner surfaces of a pair of plate-shaped frames 16.

As shown in FIG. 5, a rear end of a reader detection arm 18 is supported on the outer surface of the frame 16 by a pin 19 so as to be swingable. Reader detection arm 18
When the leader L is conveyed downward by the elevating platform 13 and moves downward by the elevating platform 13, the leading end portion is pushed and oscillated.

A detector 20 is mounted on the outer surface of the frame 16 below the reader detection arm 18. The detector 20 operates by swinging the reader detection arm 18 to detect the amount of curl of the reader. That is, when the reader L is transported downward by the downward transport device,
The detector 20 is turned on by the swing of the reader detection arm 18, and is turned off when the leader L is slightly fed toward the back of the film supply chamber 2 by the operation of the horizontal feeder 30. The amount of curl of the reader L is detected based on the time from the start of the operation of the feed conveyance device 30 until the detector 20 is turned off.

When the amount of curl of the reader L is equal to or greater than a specified value, the detector 20 detects the driving motor 15
Is stopped, and at the same time, the alarm is activated. Further, an unusable reader L is displayed on a display unit (not shown).
Is displayed. Now, the reader L is inserted into the film supply chamber 2 from the input port 5,
The both sides of the leader L are supported by the support grooves 34 of the leader guide 35.
And the lower feeder 30 is inserted into the insertion groove 14 of the elevating platform 13, the motor 15 is operated, and the reader L is transported downward by the downward movement of the elevating platform 13.

When the reader L is conveyed downward by the lift 13, the reader L swings the reader detection arm 18 shown in FIG. 5 and the detector 20 is turned on.

When the leader L is fed to a position below the film supply chamber 2, the transverse feeder 30 is operated, and the leader L is moved.
Is transported toward the back of the film supply chamber 2. The movement of the reader L causes the reader detection arm 18 to swing, and the detector 20 to be turned off. Detector 20 is traversing transport device 3
The time from the start of the operation of 0 to the off state depends on the amount of curl of the reader L. In the case of the normal leader L without curl, the detector 20 is immediately turned off, and as shown in FIG. In the case of the leader L, the time until it is turned off is long, and the detector 20 determines whether it is the normal reader L or the abnormal reader L based on the time.

The detector 20 is an abnormal reader L
Is detected, the motor 37 of the lateral transporting device 30 is stopped based on the detection signal. For this reason, the abnormal leader L is not transported, and it is possible to prevent troubles such as clogging in the developing unit.

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

[0028]

As described above, in the film supply apparatus according to the present invention, the detector for detecting the amount of curl of the reader is provided in the film supply chamber, and when the detector detects an abnormal leader, the reader is transported. Is stopped, even if the abnormal reader is used erroneously, it is not sent to the developing section, and the occurrence of troubles such as clogging can be prevented.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional front view schematically showing a film supply apparatus 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 a plan view of the lower feed conveyance device according to the first embodiment;

FIG. 5 is a rear view of the above.

FIG. 6 is a perspective view showing a state in which a film of patrone is connected to a reader.

FIG. 7 is a perspective view showing a curled abnormal reader.

[Explanation of symbols]

 2 Film supply chamber 3 Film set chamber 5 Input port 10 Down feeder 20 Detector 60 Developing unit

Claims (1)

(57) [Claims] 1. A leading end of a film drawn from a patrone is connected to a reader, and the reader supplied from an input port into a film supply chamber is provided in the film supply chamber.
After being conveyed by the moving device, the film is fed to a film set chamber following the film supply chamber, and in a film supply device that is sent from the film set chamber to the developing unit, the conveying path of the leader sent by the moving device,
A detector for detecting the amount of curl of the reader is provided.
Detects a reader that curls above the specified value,
A film feeding device wherein the transport of the film is stopped .