JP2874809B2 - Photosensitive material processing equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a photosensitive material processing apparatus for processing a photosensitive material in, for example, an automatic developing machine.

[0002]

2. Description of the Related Art According to an automatic developing machine, a photosensitive material such as a photographic film (hereinafter, referred to as a film) or a photographic paper is first conveyed by rollers while developing, fixing and rinsing in respective processing sections for developing, fixing and washing. Each process of washing with water is performed, and subsequently, it is sent to a drying unit and dried.

Conventionally, in each processing section of development, fixing and washing, each processing solution is circulated and supplied to a processing tank provided corresponding to each processing section by a pump, and the processing solution is stirred by the entire processing solution. Was being promoted.

[0004]

By the way, in the above-mentioned conventional automatic developing machine, the processing liquid in each processing tank is circulated and supplied by a pump and is stirred to some extent, but the processing liquid comes into contact with the film surface. The part is not enough stirring,
There is room for improvement.

In view of the above, the present invention provides a photosensitive material processing apparatus in which a processing solution is satisfactorily stirred, a processing solution in contact with the surface of the photosensitive material is always replaced with a fresh one, and the processing is accelerated. The purpose is to:

[0006]

According to a first aspect of the present invention, there is provided a photosensitive material processing apparatus, wherein a transport roller is disposed in a processing tank and transports the photosensitive material, and the transport roller is driven to vibrate along its axial direction . Vibration driving means.

The photosensitive material processing apparatus according to the second aspect of the present invention.
Is a transport roller that transports the photosensitive material placed in the processing tank
And a transport sequentially arranged along the transport direction of the photosensitive material
Vibration drive for driving rollers in opposite phase states
Means.

[0008]

With the above arrangement, the transport roller is vibrated by the vibration driving means in the portion of the processing liquid which is in direct contact with the surface of the photosensitive material, so that the processing liquid is sufficiently agitated at the portion which comes into contact with the surface of the photosensitive material. You. Therefore, the portion of the processing liquid that is in direct contact with the surface of the film is always replaced with a fresh one, thereby facilitating the processing.

[0009] Thus, the contact time with the processing solution required for the processing can be short, the transport speed of the film in the processing solution can be increased, or the transport distance in the processing solution can be shortened. Shortening of the processing time of the entire machine is achieved.

Further, the respective transport rollers are sequentially oscillated in mutually opposite phases. Thereby, the stirring of the treatment liquid portion which is in direct contact with the surface of the film becomes more effective.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A photosensitive material processing apparatus according to one embodiment of the present invention will be described in detail with reference to FIGS.

FIG. 2 shows a photosensitive material drying apparatus according to the present embodiment applied to an automatic developing machine 10.

In the housing 12 of the automatic developing machine 10, a film insertion opening 14 is formed in the upper part of the right side wall, and an X-ray film (hereinafter, referred to as a film 16) constituting a photosensitive material is inserted through the film insertion opening 14 into the housing 12. Is to enter.

In the housing 12, a processing section 18 is disposed at an upper portion thereof, and the processing section 18 has a film insertion port 1 provided therein.
Subsequent to 4, a developing tank 20, a fixing tank 22, and a washing tank 24 are arranged in this order. These developing tank 20 and fixing tank 2
2 and the washing tank 24, the developing solution 21 and the fixing solution 2 respectively.
Each of the processing liquids 3 and the washing water 25 is filled, and these processing liquids are circulated and supplied into each tank by a pump (not shown).

In the developing tank 20, a transport roller 30 is provided in the developing solution 21. The transport roller 30 is, as shown in FIG. 1, a direction orthogonal to the transport direction of the film 16,
The film 26 is located along both sides of the film 16 with an axis along the width direction of the film 16 and along the transport path 17 of the film 16 indicated by a dashed line in FIG.
Are provided so as to oppose each other in a zigzag manner on both side surfaces. As shown in FIG. 1, each transport roller 30 is
The transport roller 30 is supported between a pair of rack plates 28 fixed in the housing 0 and is rotatable around the axis of the transport roller 30 and is free to vibrate along the axial direction.

Here, one end of the roller shaft 32 of the transport roller 30 is penetrated out of the tank, and the penetrated roller shaft 3
A vibrator 34 for reciprocating the roller shaft 32 based on a magnetic force, which constitutes a vibration driving unit, is provided at an end of the second roller 2, whereby the transport roller 30 is driven to vibrate in the axial direction. Further, a rotating drive motor 36 is connected to the penetrating end of the roller shaft 32 via a joint 33 that allows the roller shaft 32 to reciprocate by a vibrator 34 and using a timing pulley 37 and a timing belt 35. Accordingly, the transport roller 30 is driven to rotate. It should be noted that adjacent transport rollers 30 arranged sequentially along the transport path 17 are controlled such that the phases of vibrations thereof are opposite to each other.

The film 16 is provided between the rack plates 28.
The guide plate 38 is fixed to both side edges of. The guide plate 38 holds the film 1 between the upper and lower transport rollers 30.
6, so that the film 16 is smoothly guided along the transport path 17.

The transport rack 26 provided with such a transport / vibration roller 30 is also provided in the fixing tank 22 and the washing tank 24.

The transport path 17 includes, in addition to the transport roller 30 provided in each tank, a portion of the film insertion port 14 and a portion between the tanks, and further, a portion subsequent to the processing section 18. A plurality of opposing rollers 40 are provided on both sides of the film 16, and by rotating these opposing rollers 40, the film 16 is transferred to the developing tank 20 and the fixing tank 2.
2 and the washing tank 24 are fed in this order, and development, fixing and washing are performed respectively.

In FIG. 2, a squeeze section 42 is arranged at the upper left of the washing tank 24. In the squeezing section 42, the washed film 16 is inverted and lowered by the pair of rollers 40 and transported. The moisture adhering to the surface is squeezed by the roller 40.

Below the squeeze section 42, a drying section 46 is provided. The drying section 46 is provided with a far-infrared heater 50 having a reflection plate 52 and a hot air supply section 54 further below the heater 50. I have. The far-infrared heater 50 and the hot air supply unit 54 are both provided on both sides of the film 16 so as to face each other. Thereby, the film 16
Is dried by radiant heat while being transported downward along the transport path 17, and then hot-air drying is performed.

In the center of the left wall of the housing 18 in FIG.
An opening is formed in the film receiving port 56, and the film receiving port 5 is formed.
From 6, a dried film 16 is sent out.

Next, the operation of this embodiment will be described. First,
The film 16 is inserted from the film insertion port 14 into the housing 1.
2 and is sent to the developing tank 20.

In the developing tank 20, the film 16 is transported in the developer 21 along the transport path 17 by the rotation of the transport roller 30. At the same time as the rotation of the transport roller 30, vibration is applied through a vibrator 34, and the vibration of the transport roller 30 sufficiently agitates the developer 21 on the surface portion of the film 16, and the developer 16 in direct contact with the film 16. 21 parts are always replaced with fresh ones.

The film that has come out of the developing tank 20 is sent to a fixing tank 22 and a washing tank 24. In the fixing tank 22 and the washing tank 24, the processing liquid on the surface of the film 16 is removed. Like the developer 21 in the developing tank 22,
Agitated sufficiently with the vibration of the transport roller 30.

As a result, the film 16 required for each processing
The contact time with each processing solution becomes shorter in a short time, and the transport speed of the film 16 in each processing solution is increased, or
The transport distance in each processing solution can be shortened, the processing can be promoted, and the processing time of the entire automatic developing machine 10 can be shortened.

After these processes, the film 16 is sent to the drying unit 46 through the squeezing unit 42, and then sent out of the housing 12 through the film receiving port 56, and a series of processes is completed.

Here, the transport roller 30 is indicated by an arrow A in FIG.
As shown by, the structure for transmitting vibration to the transport roller 30 is simplified by vibrating along the axial direction of the transport roller 30, that is, the rotational axis direction.

In this embodiment, the transport roller 30 is vibrated along its axial direction, and the vibrations of the adjacent transport rollers 30 which are sequentially arranged are in opposite phases to each other. The agitation of the treatment liquid on the surface portion is extremely effectively performed.

Although the photosensitive material processing apparatus of the present invention has been described based on the embodiments, the present invention is not limited to the embodiments and can be variously modified. For example, in the above embodiment, the transport rollers 30 are arranged in a staggered manner along the transport direction of the film 16, but the present invention is not limited to this.

The transport roller 30 is not limited to its axial direction, but oscillates toward the film 16 as shown by an arrow B in FIG. Even if the processing liquid vibrates along the transport direction, the processing liquid on the surface of the film 16 is sufficiently stirred.

[0032]

As described above, in the photosensitive material processing apparatus according to the present invention, the processing solution is well stirred, the processing solution in contact with the surface of the photosensitive material is always replaced with a fresh one, and the processing is accelerated. Is achieved.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a main part of a photosensitive material processing apparatus according to an embodiment of the present invention.

FIG. 2 is a schematic vertical sectional view showing an automatic developing machine to which a photosensitive material processing apparatus according to one embodiment of the present invention is applied.

[Explanation of symbols]

 Reference Signs List 16 film (photosensitive material) 20 developing tank (processing tank) 22 fixing tank (processing tank) 24 washing tank (processing tank) 30 transport roller 34 vibrator (vibration driving means)

Claims (2)

(57) [Claims] 1. A photosensitive material processing apparatus comprising: a transport roller disposed in a processing tank for transporting a photosensitive material; and vibration driving means for driving the transport roller to vibrate along an axial direction thereof . 2. Vibration driving means for vibrating a transport roller disposed in a processing tank for transporting a photosensitive material and transport rollers sequentially disposed along the transport direction of the photosensitive material in opposite phase states. And a light-sensitive material processing apparatus.