JPH0764262A - Automatic development processor for photographic light-sensitive materials - Google Patents

Abstract

(57) [Abstract] [Purpose] To prevent a photographic light-sensitive material developed by an automatic development processor from being scratched during the development. [Structure] A pair of outlet rollers 16, 16 for draining liquid, which are provided on an upper portion of a processing tank T ₁ , are mounted so that the height thereof can be adjusted. The mounting positions of the outlet rollers 16 and 16 are adjusted according to the height of the surface of the processing liquid in the processing tank T ₁ , and the outlet rollers 16 and 16 are immersed in the processing liquid to form the outlet rollers 16 and 16.
Prevents crystals from adhering to. Also, the exit roller 1
The upper turn roller 24, which is provided on the outlet side of the reference numerals 6 and 16 and guides the photographic light-sensitive material into the next processing tank T ₂ , is rotated at the same speed as the moving speed of the photographic light-sensitive material to rotate it. Prevents slippage between

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic development processing apparatus for developing a photographic light-sensitive material such as film or photographic paper.

[0002]

2. Description of the Related Art Generally, when developing a film,
As shown in FIG. 7, two films F to be developed are connected to a reader L, and the film F is sent to the development processing section by the leading of the reader L.

Here, the leader L is made of a flexible synthetic resin sheet, and the feed hole a is formed in the center portion in the width direction.
Are formed at equal intervals.

FIG. 6 shows a part of an automatic development processing apparatus for developing the film F, which includes a reader L and a film F.
Is transported into a processing tank T ₁ filled with a color developing solution for color development processing, and then transported into a processing tank T ₂ filled with a bleaching solution for bleaching processing.

The film F of the bleaching treatment liquid is conveyed into a treatment tank T ₃ filled with a fixing liquid for fixing treatment, and is further conveyed into a treatment tank (not shown) filled with a stabilizing liquid to stabilize. Is processed.

In the above development processing apparatus, a rack (not shown) is hung and suspended in the processing tanks T ₁ , T ₂ and T ₃ filled with various processing liquids, and the sprocket 30 provided on the rack is rotated, The sprocket 30 and the feed hole a
The leader L is conveyed by engagement with.

In a developing device for developing photographic paper, a feed roller is used instead of the sprocket 30 and the photographic paper is conveyed in one direction by rotation of the feed roller.

In the developing processing apparatus as described above, in order to prevent the processing liquid from being taken out, the processing tanks T ₁ , T _1
2 , a pair of outlet rollers 31, 31 are provided on the upper part of the rack suspended from T ₃ , and the pair of outlet rollers 31, 31 are provided.
A photographic light-sensitive material such as a film or photographic paper is passed between them to drain off the processing liquid adhering to the photographic light-sensitive material.

Further, in the developing processing apparatus, an upper reversing guide 32 and a plurality of upper turn rollers 33 are provided above the adjacent processing tanks to guide the photographic light-sensitive material sent from the processing tank into the next processing tank. ing.

In the above-mentioned automatic development processing apparatus, the heights of the processing liquids filled in the processing tanks T ₁ , T ₂ and T ₃ are not all the same but often different.

[0011]

By the way, in the conventional automatic development processing apparatus, since the pair of outlet rollers 31, 31 are rotatably attached to the rack at a fixed position, the rack is used as a processing tank. When suspended in T ₁ , T ₂ , and T ₃ , the pair of outlet rollers 31 and 31 are all held at the same height, and the pair of outlet rollers 31 and 31 are immersed in the processing liquid having the highest liquid level. In this state, in the case of the processing liquid having a low liquid level, the outlet rollers 31, 31 may be arranged on the liquid level. Therefore, the exit roller 3 located outside the liquid
In Nos. 1 and 31, the treatment liquid removed from the photographic light-sensitive material was often crystallized, and there was a risk that the photographic light-sensitive material would be damaged by the adhesion of the crystals.

Further, in the conventional automatic development processing apparatus, a plurality of upper turn rollers 33 for guiding the movement of the photographic light-sensitive material are formed in a drum shape as shown in FIG. Since the turn roller 33 is rotatably supported and is rotated by contact with the photographic light-sensitive material, when the photographic light-sensitive material moves across several processing tanks T ₁ , T ₂ and T _3. However, there is a problem that a strong tensile force acts on the photographic light-sensitive material, which causes deformation of the photographic light-sensitive material.

Further, the processing liquid may adhere to the surface of the upper turn roller 33 to be crystallized, and the relative movement of the upper turn roller 33 and the photographic material may damage the photographic material.

There is also one in which the upper turn rollers 33 are arranged outside the liquid so as to face each other, and the photographic light-sensitive material is sandwiched between the rollers to be conveyed. Becomes higher.

The present invention has a technical object to prevent the photographic light-sensitive material from being scratched.

[0016]

In order to solve the above-mentioned problems, in the first aspect of the invention, the adhering liquid of the photographic light-sensitive material is removed on the upper part of each of a plurality of processing tanks filled with various developing processing liquids. In an automatic developing apparatus for a photographic light-sensitive material, which is provided with a pair of outlet rollers for draining liquid, the pair of outlet rollers is attached so as to be vertically position-adjustable.

Further, in the second aspect of the present invention, the photographic light-sensitive material automatic development processing apparatus for sequentially transferring the photographic light-sensitive material into a plurality of processing tanks filled with various development processing liquids to perform development processing is adjacent to each other. The upper turn roller, which is provided only inside the passage surface of the photographic light-sensitive material between the upper parts of the processing tanks and guides the photographic light-sensitive material sent from the processing tank to the next processing tank, has the same diameter throughout the axial direction, A rotation driving means for rotating the upper turn roller at the same speed as the transfer speed of the photographic light-sensitive material is provided.

[0018]

In the first aspect of the present invention, the height of the pair of outlet rollers is adjusted according to the height of the liquid level after the treatment in the treatment tanks, so that the pair of outlet rollers in each treatment tank can be treated with the treatment liquid. Since it can be dipped, the treatment liquid can be prevented from crystallizing on the surface of the exit roller.

Further, in the second aspect of the invention, since the upper turn roller can be rotated at the same speed as the photographic light-sensitive material, a tensile force does not act on the photographic light-sensitive material, and the photographic light-sensitive material and the upper turn roller are Since slip can be prevented from occurring between them, it is possible to prevent the photographic light-sensitive material from being scratched.

[0020]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the present invention will be described below with reference to FIGS.

FIG. 1 shows an automatic development processing apparatus for developing a film. The reader L and the film F shown in FIG.
Are sequentially fed into a processing tank T ₁ filled with a color developing solution, a processing tank T ₂ filled with a bleaching solution, and a processing tank T ₃ filled with a fixing solution to develop a color developing process,
Bleached and fixed.

After the fixing process, the film F is conveyed into a processing tank filled with a stabilizing solution for stabilization, but the processing tank is omitted in the figure.

The rack 1 shown in FIGS. 3 and 4 is suspended and suspended in the various processing tanks T ₁ , T ₂ and T ₃ .

The rack 1 has a pair of guide plates 3 and 3 attached to both sides of the rack body 2, and a leader L and a transfer path 4 for the film F are provided between the guide plates 3 and 3 and the rack body 2. ing.

Further, a plurality of sprockets 5 engageable with the feed holes a of the leader L are provided in the central portion in the width direction of the rack body 2 in the vertical direction at intervals shorter than the length of the leader L. Both sides of the outer periphery of the sprocket 5 are fitted in the vertically extending grooves 6 formed on the inner surfaces of the guide plates 3 and 3, and when the leader L is inserted into the transfer path 4, the feed hole a of the leader L is formed. It is designed to engage.

A drive shaft 7 is rotatably supported on an upper part of one side of the rack body 2. A helical gear 8 is attached to the end of the drive shaft 7. Helical gear 8, when suspended rack 1 sieved within the processing tank T _1, T _2, T _3, the processing tank T _1, T _2, the worm gear 10 meshes of T ₃ on one side upper part disposed the interlocking shaft 9 The rotation of the interlocking shaft 9 is transmitted to the drive shaft 7. Also,
The rotation of the drive shaft 7 is transmitted to the torque transmission shaft 12 inserted in the rack body 2 through the pair of bevel gears 11 and 11, and the rotation of the torque transmission shaft 12 is transmitted through the pair of bevel gears 13 and 13. It is adapted to be transmitted to the sprocket 5.

At the bottom of the rack body 2, a reader L
Lower turn roller 1 that changes the transfer direction of 180 °
4 and a lower reversing guide 15 for guiding the leader L are provided on the outer circumference of the lower turn roller 14.

When the rack 1 having the above structure is suspended in the processing tanks T ₁ , T ₂ and T ₃ and the leader L is inserted into one of the transfer paths 4 of the rack 1, the leader L rotates the sprocket 5. Is transported downwards by. When the leader L is conveyed to the lower portion of the rack 1, the lower turn roller 14 changes the conveying direction by 180 ° and conveys the other conveying path 4 upward.

A pair of exit rollers 16 and 16 are provided on the upper portion of the conveying path along which the leader L is conveyed upward.
Roller shafts 16a at both ends of the pair of outlet rollers 16 and 16
Are rotatably supported by a bearing plate 17 provided on the upper portion of the rack 1.

Here, the bearing plate 17 is provided with a pair of left and right insertion holes 18 at predetermined intervals in the vertical direction, and the roller shafts 16a of the pair of outlet rollers 16 and 16 are inserted into and removed from the insertion holes 18. It is free.

In the embodiment, the pair of left and right insertion holes 18 are formed in three stages so that the heights of the outlet rollers 16 can be adjusted in three stages. At each mounting position, the drive shaft 7 can be adjusted. Is transmitted to one of the outlet rollers 16.

The drive shaft 7 is rotated by a pair of exit rollers 16,
16, a drive gear 19 is attached to the drive shaft 7, and the first idle gear 20, the second idle gear 21, and the third idle gear 22 to which the rotation of the drive gear 19 is transmitted are attached to one side of the rack 1. Are arranged in a vertical direction and are rotatably supported. In addition, the pair of exit rollers 16, 16
Gears 23, 23 meshing with each other are attached to the roller shaft 16a.

Here, one of the pair of gears 23, 23 is engaged with the first idle gear 20 in the state where the pair of outlet rollers 16 are supported by the upper insertion hole 18, and is also inserted in the center. It is adapted to engage with the third idle gear 22 while being supported by the hole 18 and the lower insertion hole 18.

The pair of exit rollers 16 and 16 rotate in contact with each other, and the leader L and the film F are inserted between the exit rollers 16 and 16 to be attached to the leader L and the film F. The liquid is removed.

The outlet rollers 16 and 16 have their mounting heights adjusted according to the height of the surface of the processing liquid in the processing tanks T ₁ , T ₂ and T ₃ so that they can be crystallized like a bleaching solution or a fixing solution. In the case of a processing solution that easily turns into a solution, be sure to immerse the lower periphery in the processing solution.

As described above, the positions of the outlet rollers 16 and 16 are adjusted in accordance with the height of the surface of the processing liquid, and each outlet roller 1 is adjusted.
By immersing the lower portions of the outer circumferences of 6 and 16 in the treatment liquid, it is possible to prevent crystals from adhering to the surfaces of the exit rollers 16 and 16.

Therefore, it is possible to prevent the film F to be developed from being scratched by the contact with the exit rollers 16 and 16.

Between the upper portions of the various processing tanks T ₁ , T ₂ and T ₃ , a plurality of upper turn rollers 24 for guiding the leader L and the film F sent from the outlet rollers 16 and 16 to the next processing tank, The upper turn roller 24
A leader L and an upper guide 25 for guiding the film F are provided on the outer circumference of the.

As shown in FIG. 5, the upper turn roller 24 has the same diameter throughout the axial direction. The rotation of the drive shaft 7 is transmitted to the upper turn roller 24 via a gear transmission mechanism 26, and the leader L and the film F are conveyed.
It is rotated at the same peripheral speed as the transport speed of.

As described above, by rotating the upper turn roller 24 at the same peripheral speed as the conveying speed of the leader L and the film F, the film F is processed into a plurality of processing tanks T ₁ , T 2.
_2, T ₃ to be astride state not applied tension to the film F, and because the slip does not occur between each other film F and the upper turn roller 24, to prevent scratching the film F be able to.

In the case of the embodiment, the development processing of the film F has been described as an example, but in the development processing of the printing paper,
Use a rack with photographic paper feed rollers.

[0042]

Since the present invention is configured as described above, it has the following effects.

According to the first aspect of the present invention, the position of the pair of outlet rollers for draining the liquid can be adjusted according to the liquid level of the processing liquid filled in the processing tank. The roller can be surely immersed in the processing liquid. For this reason, crystals do not adhere to the exit roller and it is possible to prevent the photographic photosensitive material from being scratched.

According to the second aspect of the invention, the upper turn roller for guiding the photographic light-sensitive material delivered from the processing tank into the next processing tank is rotated at the same speed as the moving speed of the photographic light-sensitive material. Therefore, even when the photographic light-sensitive material moves in a state of straddling a plurality of processing tanks, tension is not applied to the photographic light-sensitive material, and the upper turn roller has the same diameter over the entire axial length. It is possible to prevent the photosensitive material from being deformed.

Further, the upper turn roller and the photographic light-sensitive material do not relatively slip with each other, and the photographic light-sensitive material can be prevented from being scratched.

[Brief description of drawings]

FIG. 1 is a schematic view showing an embodiment of an automatic development processing apparatus according to the present invention.

FIG. 2 is an enlarged cross-sectional view showing the main part of the above.

FIG. 3 is a perspective view of the above rack.

4 is a cross-sectional plan view of FIG.

FIG. 5 is a perspective view showing an exit roller and an upper turn roller of the above.

FIG. 6 is a schematic view showing a conventional automatic development processing apparatus.

FIG. 7 is a perspective view showing a conventional upper turn roller.

[Explanation of symbols]

T ₁ , T ₂ , T ₃ processing tank 16 exit roller 18 insertion hole 24 upper turn roller

Claims (2)

[Claims] 1. An automatic development processing apparatus for a photographic light-sensitive material, comprising a plurality of processing tanks filled with various development processing liquids, and a pair of outlet rollers for removing the liquid adhering to the photographic light-sensitive material provided above each processing tank. 2. An automatic development processing apparatus for photographic light-sensitive material as set forth in claim 1, wherein the pair of outlet rollers are mounted so that their positions can be adjusted in the vertical direction. 2. An automatic developing apparatus for a photographic light-sensitive material, which sequentially transfers photographic light-sensitive material into a plurality of processing tanks filled with various kinds of development processing liquids to perform development processing, between adjacent upper portions of processing tanks. The upper turn roller, which is provided only inside the passage surface of the photographic light-sensitive material and guides the photographic light-sensitive material sent from the processing tank to the next processing tank, has the same diameter in the entire axial direction, and the upper turn roller is photographic light-sensitive. An automatic development processing apparatus for a photographic light-sensitive material, comprising: a rotation driving means for rotating the material at the same speed as the material transfer speed.