JP2635381B2 - Automatic developing machine - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic developing machine suitable for being used in combination with a photo-electric transceiver.

2. Description of the Related Art Conventionally, an automatic developing machine has been docked to a photo-electric transceiver and the like, and the unprocessed photographic material has been continuously developed, fixed, and washed in a bright room. In addition, there is known a configuration in which the sheet is discharged to a tray.

FIG. 4 shows an example of a conventional automatic developing machine of this type. An automatic developing machine 2 configured to receive a photographic material from a photo-electric transceiver 1 and to convey it along a traveling path 3 is shown. is set up. The automatic developing machine 2 includes a developing rack 4, a fixing rack 5, a washing rack 6, a transport roller (not shown) for transporting the photosensitive material so that the photosensitive material passes through each rack, and a wet feeling. The dryer 7 includes a dryer 7 for drying the material. The dryer 7 includes a transport roller 8 for transporting the photosensitive material, and a hot air supply device 9 including a fan 9a and a heater 9b. Transport roller of each rack and transport roller 8 of dryer 7
Are driven by a common drive motor. In the automatic developing machine 2 having this configuration, when the unprocessed photographic material recorded by the photographic transmitter / receiver 1 is sent, the photographic material continuously passes through the developing, fixing, and washing racks, and After being subjected to fixing and washing processes, the transport roller 8
Thus, the ink was continuously passed through the dryer, and was dried by hot air from the hot air supply device 9 during that time, and was discharged onto the tray 10 on the side of the developing device.

FIG. 5 shows another example of a conventional automatic developing machine. In this example, a drying rack 12 is provided for drying the photosensitive material after washing with water, and the photosensitive material is conveyed into the rack 12. Let dry. Other configurations are the same as those in FIG.

FIG. 6 shows still another example of the conventional automatic developing machine. In this example, a drying machine 13 is provided on the upper surface of the automatic developing machine, and the photosensitive material which has exited the washing rack 6 is guided upward. 13 and is configured to be dried with hot air by a hot air supply device including a fan 9a and a heater 9b arranged so as to sandwich a photosensitive material in the dryer 13, and at a position where it does not hinder the dryer 13. The upper surface of the removable cover 14 is used as a discharge tray for the processing agent photosensitive material.

However, according to such a conventional automatic developing machine, a considerable amount of time, temperature and amount of hot air is required to dry a wet photosensitive material. There have been problems of safety in use, such as an increase in the size of the developing machine and an increase in the temperature of the surface cover of the dryer due to warm air, and a problem of an increase in power consumption and an installation space for the automatic developing machine.

The above problem arises for the following reasons. That is, the configuration for drying the wet photosensitive material is determined by the strength of the hot air and the drying time, and the distribution of the combination. For this reason, increasing the intensity of the hot air increases the power consumption and inevitably increases the surface cover temperature of the dryer.

Further, conventionally, since the drying time per unit area is shortened due to the drying while being continuously conveyed, the conveying distance for the dryer is inevitably increased, and the size of the dryer is increased.

To solve these problems, Japanese Unexamined Utility Model Publication No. Sho 58-79734 proposes a dryer in which the photosensitive material is stopped in the dryer and cold air is blown to the photosensitive material for a certain period of time. However, there is a problem that drying with cold air takes time. Further, in the apparatus disclosed in this publication, in order to be able to stop the photosensitive material in the dryer, a transport roller in the dryer is driven by a motor for transporting the photosensitive material in various processes such as development, fixing, and washing with water. Is configured to be driven by separate motors, and therefore, it is difficult to match the transport speed by the transport rollers of the dryer with the transport speed by the transport rollers up to the washing step, and to use two motors. There was also a problem that the cost was high.

The present invention has been made in view of the above-mentioned problems, and can improve ease of use and safety, and can dry a light-sensitive material promptly, and is a small and lightweight automatic. An object is to provide a developing machine.

Means for Solving the Problems The present invention solves the above-mentioned problems, a drying means for drying the photosensitive material after washing the photosensitive material with water, a conveying means for conveying the photosensitive material dried by the drying means, A driving unit for driving the conveying unit, a clutch capable of connecting and disconnecting the driving unit and the conveying unit, a light-sensitive material detecting unit for detecting a light-sensitive material conveyed to the conveying unit, and the light-sensitive material detecting unit After the detection is performed, the clutch is connected, the photosensitive material is transported to the center position of the drying unit by the transport unit for a predetermined time, the clutch is disengaged, and after a predetermined time, the clutch is connected and the photosensitive material is transported. Transport control means for releasing the clutch after the discharge.

Action Since the present invention has the above-described configuration, by connecting the clutch, the conveying means of the dryer is connected to the driving device,
It can be driven in synchronism with the transport means for passing the photosensitive material through a developing rack, a fixing rack, a washing rack, and the like, and the washed photosensitive material can be well received in the dryer. Further, after the photosensitive material is received in the dryer, the photosensitive material can be stopped in the dryer without disturbing the running of the photosensitive material in each rack by disengaging the clutch. For this reason, the photosensitive material stopped in the dryer is dried with hot air, the drying time per unit area increases, drying with a small amount of hot air becomes possible, and the hot air supply device can be downsized. . In addition, by adopting a configuration in which the stopped photosensitive material is dried, it is possible to shorten the photosensitive material transport distance in the dryer, and in this regard, the dryer can be downsized.

Embodiment Hereinafter, an embodiment of the present invention shown in the drawings will be described.

FIG. 1 is a schematic side view showing an automatic developing machine according to one embodiment of the present invention, and the same parts as those of the conventional example shown in FIG. In FIG. 1, 1 is a photo-electric transceiver, 2 is an automatic developing machine docked with the photo-electric transceiver 1, 3 is recorded by the photo-electric transceiver 1,
The traveling path of the photosensitive material processed by the automatic developing machine 2 is a developing rack, 4 is a fixing rack, 5 is a fixing rack, and 6 is a washing rack. In each of the racks 4 to 6, a transporting unit for transporting the photosensitive material so that the photosensitive material passes through each rack, for example, a transport roller (not shown)
Is provided.

Reference numeral 16 denotes a squeeze roller for removing the moisture of the photosensitive material from the washing rack 6, 17 denotes an openable / closable upper lid cover mounted on the upper surface of the developing machine main body accommodating each of the racks 4 to 6, and 18 denotes a cover lid. A dryer 19 provided is a hot air supply pipe for supplying hot air to the dryer 18, and is connected to a hot air supply device (not shown) provided with a fan and a heater, which is arranged outside the main body of the developing device. It is connected. The dryer 18 includes, as shown in FIG. 3, a transport roller 21 and a transport belt 22 that constitute a photosensitive material transport unit that transports the photosensitive material 20, a driving shaft 23 and a belt 24 for a dryer that drives these, It has detection sensors 25 and 26 for detecting the photosensitive material 20 and the like. Here, the length of the photosensitive material transport path in the dryer 18 may be long enough to stop one photosensitive material 20 and dry with hot air as shown in FIG. 3 (C). However, the length is shorter than the transport length required for hot-air drying while continuously feeding as in the related art. In the figure,
Reference numeral 27 denotes warm air for drying the photosensitive material 20.

FIG. 2 is a schematic perspective view showing a part of the drive system of the automatic developing machine 2 described above. Reference numeral 28 denotes a motor as a drive source of the entire automatic developing machine 2, 29 denotes a driving shaft for the developing machine main body, and 30 denotes a driving shaft. This is a chain that transmits the rotation of the motor 28 to the drive shaft 29. The drive shaft 29 is drivingly connected to the transport rollers and the squeeze roller 16 for each of the racks 4 to 6 so as to rotate. Therefore, the motor 28, the drive shaft 29, the chain 30, etc.
A driving device is configured to drive a transport unit that transports the photosensitive material so as to pass through each of the racks. 31 is a chain driven by a drive shaft 29, 32 is a wheel arranged so as to form a horizontal running part in the chain 31, and 33 is dried so as to mesh with the horizontal running part of the chain 31 when the upper cover 17 is closed. A wheel 34 held by the machine drive shaft 23 is a clutch for transmitting or disconnecting the rotation of the wheel 33 to the dryer drive shaft 23.

The operation of the automatic developing machine 2 configured as described above will be described below.

When the photosensitive material is not sent into the dryer 18, the clutch
34 is disconnected, and the dryer drive shaft 23 is
And the rotation is stopped irrespective of the rotation of the drive shaft 29. When the photographic material recorded in the photographic transmitter / receiver 1 is discharged and guided to the automatic developing machine 2, the photographic material is transferred to the developing rack 4 and the fixing rack 5 by conveying rollers (not shown) in the main body of the automatic developing machine. After passing through a washing rack 6, development, fixing and washing processes are performed. Then, water is squeezed out by a squeeze roller 16 and sent to a dryer 18.

In FIG. 3A, when the photosensitive material 20 wet by the squeeze roller 16 is sent into the dryer 18, the detection sensor 25 detects the photosensitive material 20 and connects the clutch. As a result, the drive shaft 23 for the dryer starts to rotate, the drying roller 21 and the conveyor belt 22 in the dryer 18 start to operate, and as shown in FIG. It is led to.
When the photosensitive material 20 reaches the position shown in FIG. 3 (C) after a predetermined time has elapsed after the detection sensor 26 has detected the photosensitive material 20, the clutch
34 is cut off, the dryer drive shaft 23 stops, and the transport rollers 21
The operation of the transport belt 22 is also stopped, and the photosensitive material 20 is temporarily stopped near the center of the dryer 18. While the photosensitive material 20 is stopped, the warm air 27 from the hot air supply pipe 19 is blown to the photosensitive material 20, and the wet sensitive material 20 is dried. In addition, dryer
Since the drive shaft 29 for the developing machine main body continues to rotate even while the photosensitive material 20 is stopped in 18, the next photosensitive material is passed through each of the racks 4 to 6 without any trouble. Is done.

When the stop time of the photosensitive material 20 in the dryer 18 reaches a predetermined time, the clutch 34 is connected, the dryer drive shaft 23 starts rotating again, the transport roller 21 and the transport belt 22 start operating, As shown in FIG. 3 (D), the dried photosensitive material 20 is
It is discharged from 18 and discharged to a tray formed on the upper surface of the upper cover 17. Thereafter, the clutch 34 is disengaged, and the dryer drive shaft 23 is stopped to prepare for the next photosensitive material.

Although the above-described embodiment shows the case where the dryer 18 is provided on the upper cover 17 which can be opened and closed, the present invention is not limited to this type of automatic developing machine, and FIGS. The present invention is also applicable to an automatic developing machine of the type shown in FIG.

Advantageous Effects of the Invention As is clear from the above description, the present invention provides a photosensitive material transporting means of a dryer to a driving device for driving a photosensitive material transporting means of another part of an automatic dryer via a clutch. Connected, furthermore, since it was configured to blow hot air against the photosensitive material in the dryer to dry it, by connecting the clutch, the transporting means of the dryer was changed to another transporting means in the automatic dryer, that is, Developed racks, fixing racks, driven in synchronization with the transport means for passing the photosensitive material through a washing rack, etc., the washed photosensitive material can be well received in the dryer,
After receiving the photosensitive material into the dryer, the clutch can be disengaged to temporarily stop only the photosensitive material in the dryer, making it possible to easily dry the photosensitive material wet with weak warm air. . For this reason, the temperature of the surface cover of the dryer rises, thereby increasing the safety against heat, and shortening the transport distance allows the dryer to be lighter.
This has the effect of reducing the installation space of the apparatus as an automatic developing machine, and of reducing power consumption by using a small amount of warm air.

[Brief description of the drawings]

FIG. 1 is a schematic side view showing an automatic developing machine according to an embodiment of the present invention, FIG. 2 is a schematic perspective view showing a part of a drive system in the automatic developing machine, and FIGS. 3 (A) and 3 (B). , (C),
(D) is a schematic side view for explaining the operation of the dryer in the above embodiment, and FIGS. 4, 5 and 6 are schematic side views each showing a conventional automatic developing machine. DESCRIPTION OF SYMBOLS 1 ... Photoelectric transceiver, 2 ... Automatic developing machine, 3 ... Sensitive material travel route, 4 ... Developing rack, 5 ... Fixing rack, 6 ...
... Washing rack, 16 ... Squeeze roller, 17 ... Top cover, 18 ... Dryer, 19 ... Hot air supply pipe, 20 ... Sensitive material, 21
... Conveying rollers, 22 ... Conveying belt, 23 ... Dryer drive shaft, 25,26 ... Detection sensor, 28 ... Motor, 29 ... Developer main body drive shaft, 30,31 ... Chain, 33 ... wheels, 34 ... clutches.

Claims (1)

(57) [Claims] A drying means for drying the photosensitive material after washing the photosensitive material with water, a transport means for transporting the photosensitive material to be dried by the drying means, a driving means for driving the transport means; A clutch capable of connecting and disconnecting the transfer means, a light-sensitive material detection means for detecting a light-sensitive material transferred to the transfer means, and connecting the clutch after the detection is performed by the light-sensitive material detection means; Transport control means for transporting the photosensitive material to the central position of the drying means by the transport means, disengaging the clutch, connecting the clutch after a predetermined time, transporting and discharging the photosensitive material, and disconnecting the clutch; An automatic developing machine comprising: