JPH06110179A - Film developing device - Google Patents

Abstract

PURPOSE:To automatically take out film from a sealing body in a dark box and to automatically attach it to a processing and transporting means and to omit manual work for developing the film further by providing a charging port for charging the sealing body to the wall part of the dark box, and a film taking-out and attaching means taking out the film from the sealing body. CONSTITUTION:The charging port 8 provided to pierce the wall part of the dark box 4, having an opening/closing cover 9 for shielding light and a cross sleeve 10, and charging the sealing body 7 in the dark box; a guiding and holding means guiding and holding the sealing body charged from the charging port 8 at a specified spot in the dark box; the processing and transporting means provided in the dark box to have an attaching part to which the film is attached, and successively transporting the film to a downstream side in a processing direction and processing it; and the film taking-out and attaching means taking out the film from the sealing body held by the guiding and holding means and attaching it to the attaching part of the processing and transporting means.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a film developing apparatus, for example, a film developing apparatus used for industrial purposes such as medical and industrial purposes, and more particularly to a film developing apparatus for developing dental X-ray film.

[0002]

2. Description of the Related Art Generally, when developing an undeveloped X-ray film (hereinafter, simply referred to as a film), the undeveloped film is taken out by hand from a cassette, which is a hermetically sealed body, in a dark chamber, It is immersed in washing water and a fixing solution, and by the action of a hand, a necessary snap action or shuffle operation is carried out for development. In addition, when the state of the fixer changes, it has been dealt with by the experience and intuition of a skilled person. However, in such a manual development process, so-called manual development, there is a problem that the development is troublesome and requires a skilled operation and labor. Therefore, recently, a film developing apparatus has been proposed in which the manpower for developing these films is removed as much as possible.

Conventionally, as a film developing apparatus of this type, for example, there is one as described in Japanese Patent Application No. 63-173191. The film developing device is configured to sandwich an undeveloped film between a plurality of pairs of nip rollers and sequentially feed the developing solution and the fixing solution in the horizontal direction.

[0004]

However, in such a conventional film developing apparatus, when the undeveloped film is taken out from the cassette, it must be done by groping in a dark room or a dark box. However, there is a problem that taking out the film and mounting it on the nip roller or the like becomes complicated.

Therefore, according to the present invention, there are provided a loading port for loading the sealed body in the dark box, a guide holding means for guiding and holding the loaded sealed body at a required position, a film processing and conveying means, and a guide holding means. By taking out the film from the held sealed body and mounting and mounting means for mounting it on the processing and transporting means, it is possible to automatically take out the film from the sealing body in the dark box and mount it on the processing and transporting means. In addition, it is an object of the present invention to provide a film developing apparatus which can further eliminate the labor of film developing.

[0006]

SUMMARY OF THE INVENTION The present invention is a film developing apparatus for taking out an undeveloped film from a hermetically sealed body in a dark box, developing, fixing and drying the film, and is provided so as to penetrate the wall of the dark box. Further, it has an opening / closing lid for shading, and a loading port capable of loading the sealing body in the dark box, and a guide holding means for guiding and holding the sealing body loaded from the loading port to a required location in the dark box, Provided in a dark box having a mounting portion to which the film is mounted, processing and transporting means for sequentially transporting and processing the film downstream in the processing direction, and taking out the film from the sealing body held by the guide holding means, And a film take-out / mounting means for mounting the film on the mounting portion of the processing and transporting means.

[0007]

In the present invention, when the sealing body is inserted into the charging port,
The sealing body is guided by the guide holding means and held at a predetermined position in the dark box, the film is taken out from the sealing body by the take-out / mounting means and mounted on the mounting portion of the processing and conveying means, and further, the film is processed by the processing and conveying means. It is transported to the downstream side in the direction and automatically processed in sequence without manpower.

[0008]

Embodiments of the present invention will be described below with reference to the drawings. 1 to 3 are views showing an embodiment of the film developing apparatus according to the present invention. As shown in FIG. 1, the film developing apparatus includes a dark box 4 including a main body 2 having an operation panel 1 provided on the front surface thereof and a dark box lid 3 which is detachably mounted on the main body 2. The box lid 3 has a front lid 5 that can be opened and closed.
Is attached to the front surface, and a loading port 8 for loading the cassette 7 which is a sealed body that seals the undeveloped film 6 into the dark box 4 obliquely penetrates in the middle between the front and the back of the upper surface (left and right in FIG. 2). An opening / closing lid 9 for light shielding and a cross sleeve 10 having a narrowed portion in the middle are attached to the inside and outside of the charging port 8 so as to always close the charging port 8.

In the lower part of the dark box 4, as shown in FIGS. 2 and 3, the horizontally long first, second, third and fourth containers 11 capable of vertically immersing one film 6 are provided. 12, 13, 1
4 are provided side by side in the middle of the front and rear, in the processing direction of the film 6, that is, from the rear to the front. Each container 11, 12, 1
Flexible injection pipes 15 are provided at the lower portions of 3, 14 respectively.
One end of each injection pipe 15 communicate with each other, and the other end of each injection pipe 15
As shown in FIG. 1, the main body 2 passes through the lower left portion of the front surface and is locked by a locking piece 16 provided on the outer surface of the upper left portion.

Further, as shown in FIG. 2, a lid 17 for opening and closing the upper end opening of each of the containers 11, 12, 13, 14 is attached through a pin 18 to the upper end of each container. Each of the lids 17 has a connecting plate 2 attached via a pin 20 and a hanging piece 19 hanging at one end thereof.
They are integrally connected by 1. And the connecting plate 2
An opening / closing motor 22 that drives the connecting plate 21 to open / close each lid 17 is provided in the vicinity of 1. A switch 23 is provided on the upper portion of the fourth container 14 for detecting the opening of the lid 17 that is opened and closed collectively by operating the opening / closing handle 22.
Is attached. On the other hand, the first container 11 contains a developing solution, the second container 12 contains cleaning water, the third container 13 contains a fixing liquid, and the fourth container 14 contains cleaning water. A heater 24 is housed in each of the first and third containers 11 and 13, and the temperature detector 2 is installed in the first container 11.
5 are accommodated.

Each container 1 on both sides of the rear of the dark box 4
At a position corresponding to both ends of 1, 12, 13, and 14, a vertical elevating rod 27 having upper ends connected by a pedestal 26 is provided in the main body 2.
It is mounted so that it can be raised and lowered by a guide (not shown) attached to the. The pedestal 26 constitutes a part of the processing and transportation means, and a vertical rack 28 is vertically provided at an intermediate portion thereof, and the rack 28 has an elevating rod 27.
The pinion 30 of the stepping motor 29 attached to the main body 2 is meshed with the main body 2 in order to drive it vertically. A base of a guide arm 31 that horizontally extends along both ends of each container 11, 12, 13, 14 is attached to both ends of the pedestal 26, and a clip holder 32 is attached to the guide arm 31 on both guide arms 31. It is hung freely along the line. The clip holder 32 includes a roller 33 attached to the end of the pedestal 26, a roller 34 attached to the tip of the guide arm 31, and a driving roller 3 of a stepping motor 35 attached to the upper end of the lifting rod 27.
The end portion is fixed to an endless belt 37 which is wound around between six.

A film 6 is attached to the clip holder 32.
Three clips 40, which are composed of a rear claw 38 and a front claw 39 for sandwiching, are attached. And the pedestal 26
A guide plate 41 for inserting the film 6 into the clip 40 is vertically provided at the front edge portion of the. Guide plate 4
When the clip holder 32 is retracted,
A cutout portion 42 for accommodating the clip 40 is provided, and a stopper edge 43 that abuts on the upper edge of the film 6 inserted into the clip 40 to stop the insertion, and the film 8 is inserted into the clip 40. A switch 49 for detecting the wearing is attached so as to face the clip.

The body 2 is slidably guided at both end side edges of a cassette 7 which is inserted into the dark box 4 from a loading port 8.
A book slide guide 45 is obliquely provided between the first container 11 and the guide plate 41. The slide guide 45 is
It constitutes a part of the guide holding means for guiding and holding the cassette 7 at a required position in the dark box 4, and a stopper pin 46 for holding the cassette 7 at the film take-out position shown by the solid line in FIG. 2 is formed at the required position. Is provided, and also
A bottom portion 47 that slides downward by the movement of the stopper pin 46 and receives the empty cassette 7 is provided at the lower end portion. On the other hand, on the guide plate 41, an opening arm 48 for holding the opening / closing knob (not shown) of the back lid of the cassette held at the film take-out position to open the back lid, and the inside of the cassette 7 with the back lid opened The film 6 is vacuum-adsorbed and taken out, and is brought into contact with the guide plate 41 and slid upward.
A film take-out / mounting means including a mounting arm 49 to be mounted on is attached.

On the front side of the fourth container 14 of the main body 2,
Two pairs of upper and lower nip rolls 50, 51 forming a pair in the front-rear direction
The nip rolls 50, 51 are vertically separated from each other, and these nip rolls 50, 51 are provided with a motor 52 hung on the main body 2, a driving bevel gear 53 thereof, a driven bevel gear 54, a spur gear (not shown) and a lower gear. The spur gears (not shown) attached to the nip rolls 51 and the idler gears 55 meshing with the spur gears (not shown) attached to the upper and lower nip rolls 50 and 51 are interlocked and coupled. The peripheral speed of the nip rolls 50 and 51 is set to be faster than the descending speed of the film 6 held by the clip 40. In addition, at the ends of the upper and lower nip rolls 50 and 51,
A duct 58 for sending hot air from a blower 57 for drying is connected to the space 56 between the two, and a light shielding plate 59 is inserted in the gap to prevent leakage of hot air from the gap between the two. Further, below the lower nip roll 51, a chute 60 for discharging the film 6 is provided by bending forward.

Therefore, the main body 2 includes the first and third containers.
Comparing with the liquid state of the developer and fixer stored in
Processing condition setting means that sets the corresponding processing condition, for example,
The density of the imaged film 6 was checked and preset
For example, compare the concentration of 1 to 9 levels and set an appropriate immersion time.
Depends on the means to determine, or the frequency of use of the developer or fixer
Set the immersion time in the developing solution or the corresponding solution that corresponds to deterioration
Means and indicator that displays the set immersion time (Fig.
(Not shown) is provided, and vibration control during immersion in the developer is
The combination pattern of slow speed and slow speed for the work is predicted.
Has been set up for
Operated manually or by a microcomputer
Auto operation based on command (not shown)
Is configured.

Next, the operation of the film developing device will be described. First, after turning on the power source of the operation panel 1 to energize the heater 24 and the like, by turning on an opening / closing switch (not shown) for opening / closing the lid 17, the opening / closing motor 22 is driven to operate the connecting plate 21. Then, the lid 17 is opened. When the lid 17 is opened, the switch 23 is activated, and the indication of opening is displayed by the lamp of the operation panel 1. Next, the opening / closing lid 9 of the loading opening 8 of the box lid 3 is opened, and the cassette 7 of the film 6 photographed is loaded so that the back lid is on the rear side and the opening / closing knob is on the upper side. It is guided by the slide guide 45 of the holding means and is held at the film take-out position by the stopper pin 46. And the open arm 48 of the film take-out / mounting means
After the back cover of the cassette is opened by the operation of, the film 6 is vacuum-adsorbed and taken out from the inside of the cassette by the operation of the mounting arm 49, and the film 6 is slid upward along the guide plate 41 so that the film 6 is not covered. The edge portion is inserted into each clip 40, abuts against the stopper edge 43, the insertion is stopped, and the switch 44 is actuated to be input to the microcomputer and an electronic sound is emitted. After that, the stopper pin 46 is moved, and the cassette 7 is moved further downward.

Next, when the automatic manual mode switching button on the operation panel 1 is set to auto, the stepping motor 35 is actuated by the microcomputer command to move the clip holder 32 and the clip 40 is moved to the first position. After being positioned on the container 11, the stepping motor 29 operates to immerse the film in the developing solution, and the stepping motor 29 is normally rotated at a required interval and a required ascending / descending speed, and a combination of the required ascending / descending speeds. By repeating the reverse rotation, the film 6 is vibrated up and down to perform shuffling, and after a predetermined immersion time has elapsed, the film 6 is pulled out upward from the first container 11 by the operation of the stepping motor 29. Then, the same operation is repeated, and when the film 6 is sequentially immersed in the cleaning water, the fixing solution and the cleaning water and shuffling, the film 6 is
The clip 40 holding is moved onto the nip rolls 50 and 51 as shown by the chain double-dashed line in FIG. The immersion time in the processing liquid is set in accordance with the required immersion time set corresponding to the concentration of the developed film 6 and the state of liquid quality such as deterioration of the processing liquid depending on the number of times the processing liquid is used. The processed conditions are input to the microcomputer and changed, and uniform processing is always performed. Then, the stepping motor 29 is actuated to lower the film 6, and the motor 52 is driven to actuate the nip rolls 50 and 51 having a peripheral speed slightly higher than the descending speed of the film 6 to clamp the film 46 therebetween. The film 6 is fully dehydrated and descended, dried by hot air from the blower 57 and discharged from the chute 60 to the lower front portion of the dark box 4, and the development of the film 6 is completed.

On the other hand, when the mode is set to manual by the mode switch button of the automatic manual, each standard processing time is displayed, and the operator can change the set time to any time, and the difference in liquid quality It is possible to perform development processing or the like that is suitable for the correspondence and the operator. In the above-described embodiment, the case where the charging port 8 is obliquely provided on the upper surface of the dark lid 3 and the cassette 7 is inserted from the upper surface has been described, but the present invention is not limited to this, and the charging port 8 is dark. The guide holding means is provided on the front surface or the side surface of the lid 3 so as to guide the cassette 7 inserted from the loading opening 8 to the front of the slide plate 41 in the dark box 4 and to obliquely install the cassette 7 by the film take-out / mounting means. The film 6 may be taken out from the cassette 7 and attached to the clip 40 of the processing and transporting means.

[0019]

According to the present invention, a loading port for loading a sealed body into a dark box, a guide holding means for guiding and holding the loaded sealed body at a required position, a film processing and conveying means, and a guide holding. The film is taken out from the sealed body held by the means, and equipped with a film take-out / mounting means to be mounted on the processing and transport means, so that the film is automatically taken out from the sealed body in the dark box and mounted on the processing and transport means. Therefore, it is possible to further omit the manpower for film development.

[Brief description of drawings]

FIG. 1 is a perspective view of an embodiment of a film developing device according to the present invention.

FIG. 2 is a partial side sectional view of the film developing device shown in FIG.

3 is a cross-sectional view taken along the line AA of FIG.

[Explanation of symbols]

 4 Dark Box 6 Film 7 Sealing Body (Cassette) 8 Loading Port 9 Opening / Closing Lid 10 Opening / Closing Lid 11 First Container 12 Second Container 13 Third Container 14 Fourth Container 26 Stand 27 Lifting Rod 29 Stepping Motor 31 Guide Arm 32 clip holder 35 stepping motor 40 clip 41 guide plate 45 slide guide 46 stopper pin 47 bottom 48 open arm 49 mounting arm

Claims (1)

[Claims] 1. A film developing apparatus for taking out an undeveloped film from a hermetically sealed body in a dark box, developing, fixing, and drying the film, and having a light-blocking opening / closing cover provided penetrating a wall of the dark box. A loading port capable of loading the sealed body in a dark box, a guide holding means for guiding and holding the sealed body loaded from the loading port to a required location in the dark box, and a mounting part to which the film is loaded. The film is taken out from the processing carrying means which is provided in the dark box and which carries the film sequentially in the processing direction downstream for processing, and the film is taken out from the sealing body held by the guide holding means, and the film of the processing carrying means. A film developing apparatus, comprising: a film take-out / mounting means to be mounted on a mounting portion.