JP2669258B2 - 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 Generally, when developing an undeveloped film with an automatic film developing machine, as shown in FIG. 7, the leading end of the film F pulled out from the cartridge P is fed to the leader L.
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, in the lateral feed conveying device 20, pulleys 22 are attached to the upper and lower parts of a pair of front and rear rotary shafts 21, a belt 23 is stretched between the front and rear pulleys 22, and a support groove 24 is provided between the upper and lower belts 23. The reader guide 25 comprises a pair of left and right leader guide moving devices 26, 26 with equal intervals attached, and the leader guide moving devices 26, 26 are simultaneously driven by a single motor 27 to move the leader guide 25 in the direction of the arrow in FIG. The leader L having the side portion inserted into the support groove 24 of the leader guide 25 is intermittently moved to the film supply chamber 2
Conveyed intermittently toward the back of

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
0 is incorporated into the film setting chamber 3 and the reader L is sent to the developing section 60 by the sending device 72 and the patrone P moving together with the reader L is set in 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, as shown in FIG. 8, there is an abnormal reader L which is curled in the width direction, which is inserted into the insertion port 5, and the abnormal reader L is transferred during the transfer. Since use is usually prohibited at the discretion of the operator because there is a risk of clogging, it may be used incorrectly, in which case the following problems occur.

That is, the abnormal leader L is transferred by the lateral feed transport device 20 toward the back of the film supply chamber 2, and the leader L is carried by the upper feed transport device 30 to the front of the leader L which is transferred upward. Then, when the normal leader L is transferred upward by the upper feed / conveyance device 30, both the abnormal reader L may be transferred upward and become jammed in the film setting chamber 3.

The present invention has a technical problem to further improve the previously proposed film supply device and prevent the two sheet feeding leaders from being fed into the film setting chamber by the transverse feeding device.

[0017]

In order to solve the above-mentioned problems, according to the present invention, the film setting device conveys upwards to a transfer path of a leader which is fed from the supply chamber to the film setting chamber by the film setting device. In this configuration, a detector for detecting that the front reader is transferred is provided together with the reader to be read, and a control device for controlling the drive unit of the film setting device is provided based on the detection signal from the detector. .

[0018]

As described above, according to the present invention, when two leaders are conveyed upward by the film setting device, the detector operates, and the drive unit of the film setting device is controlled based on the detection signal of the detector. Thus, it is possible to prevent two readers from being fed into the film setting chamber.

[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 a description thereof will be omitted.
As shown in FIG. 1, a detector 36 is provided in the transfer path of the leader L from the film supply chamber 2 to the film setting chamber 3 by the upper feed / transport device 30.

The detector 36 has a swingable lever 37, and the tip of the lever 37 is located above and ahead of the reader L ₁ before the reader L ₀ conveyed by the upper feed conveying device 30. When the leader L ₁ is transported upward together with the leader L ₀ transported by the upper feed transport device 30, the leader L ₁ is pushed up by the upper edge portion of the front leader L ₁ .

The detector 36 operates by swinging the lever 37, and the detection signal of the detector 37 is input to the control device 38 shown in FIG. Here, the control device 38 controls the detector 3
6 operates, the drive circuit 39 of the upper feed transport device 30
The motor 40 is controlled to stop the motor 35, and the display 40 displays that the two readers L ₀ and L ₁ have been fed. Although not shown in the figure, when the detector 26 is activated, an alarm device is activated to emit a warning sound.

Now, the curled abnormal leader L
Is transported toward the back of the film supply chamber 2 by the lateral feed transport device 20, and the abnormal leader L is carried to the front of the leader L ₀ which is transported upward by the upper feed transport device 30, as shown in FIG. In this state, when the elevating table 33 of the upper feed transport device 30 is raised and the leader L ₀ at the back of the film supply chamber 2 is transferred upward, the elevating table 33 causes the second abnormal reader L to move.
_{Sometimes 1} is transported both upwards.

When two readers L ₀ and L ₁ are fed, 2
The upper edge of the reader L ₀ , L ₁ is the lever 3 of the detector 36.
Pushes up the lever 37 in contact with the 7, the detector 36 is actuated by the swinging of the lever 37, the upper feed conveyor device 30
Drive motor 35 stops.

Therefore, the readers L ₀ and L ₁ are not sent to the film setting chamber 3, and troubles such as clogging of the reader L in the film setting chamber 3 or the developing section 60 can be prevented.

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

[0027]

As described above, in the film supply device according to the present invention, the detector operates when the two readers are moved upward by the film setting device, and based on the detection signal of the detector. Since the driving device of the film setting device is stopped, it is possible to prevent the two leaders from being sent to the film setting chamber, and it is possible to prevent troubles such as clogging of the leaders from occurring.

[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 a perspective view of a detection unit that detects double-feeding of the above-mentioned reader.

FIG. 5 is a plan view schematically showing a part of the upper feed conveyance device of the above.

FIG. 6 is a block diagram of a detecting means for detecting two-sheet feeding of the reader according to the embodiment;

FIG. 7 is a perspective view showing a state in which a film of a cartridge is connected to the reader.

FIG. 8 is a perspective view showing a curled abnormal leader.

[Explanation of symbols]

 2 film supply chamber 3 film setting chamber 4 lid 5 input port 20 lateral feed transport device 30 upper feed transport device 35 motor 36 detector 38 control device 60 developing unit

Claims (1)

(57) [Claims] 1. A tip of a film pulled out from a cartridge is connected to a leader, the leader is supplied into a film supply chamber from an input port, and is conveyed toward the back of the film supply chamber by a leader guide moving device. In a film supply device configured to be fed from a film set chamber following a film supply chamber to a developing unit by a set device, in a transfer path of a leader sent from the film supply chamber to the film set chamber, together with a leader conveyed by the film set device. A film supply apparatus comprising a detector for detecting that the leader in front is conveyed, and a control device for controlling a drive unit of the film setting apparatus based on a detection signal from the detector.