JPS5852214B2 - How to clean rollers, etc. in automatic film processors - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION An automatic developing machine that automatically processes exposed sheet film, roll film, or photographic paper sequentially processes a large number of adjacent developing tanks, fixing tanks, washing tanks, and drying tanks. All the processing is done while the film is conveyed and passed by rollers, etc., but during use, dirt and foreign matter gradually adhere to the rollers, etc., which can have a negative effect on the finished result of the film. It begins to affect people.

In normal automatic processing machines, each roller, etc. is appropriately mounted on a rack installed in the processing tank so that it can be moved in and out, so the rack must be taken out and cleaned by hand with a cloth or the like on the sink. However, cleaning required a lot of effort and time.

The present invention automatically circulates a cleaning sponge sheet along each roller in the processing tank without taking out the rack, thereby removing dirt, etc. from each opening and roller in the processing tank onto the sponge sheet. By transferring the sponge sheet for cleaning, and automatically transferring the sponge sheet to another adjacent processing tank as needed, the rollers of this tank can also be cleaned, which eliminates the conventional manual work. This invention relates to a cleaning method that eliminates the drawbacks of cleaning work for rollers, etc., and will be specifically explained below based on the attached drawings.

Figure 1 shows the developing tank 1 of a belt roller type automatic processor, in which exposed film is conveyed while being sandwiched between the rollers in the processing tank and a plurality of thin, narrow, endless belts installed in parallel. , which shows a part of the fixing tank 2 having the same configuration.

A driving sprocket and a driven sprocket 4 are pivoted at the upper center and lower center of the developing rack 3 mounted in the developing tank 1, respectively, and are parallel to each other and facing in a direction perpendicular to the plane of the paper in FIG. has been done.

Between both sprockets 4 and 50 in the rack 3; a large number of guide rollers 6 in two rows on the left and right, which are parallel to the axis 4' of the drive sprocket 4 and arranged vertically, are attached to the ends of the guide rollers 6. The chain 7 is connected by a chain γ through a sprocket (not shown), and the chain 7 runs in the direction indicated by the arrow in the figure.

In the rack 3, the shaft 4' of the drive sprocket 4 is located at the lower right and lower left of the drive sprocket 4 in FIG. 1, respectively.
Driving rollers 8, 8 parallel to the direction are pivotally mounted, and driven rollers 9, 9 parallel to the shaft 4' of the driving sprocket 4 are pivotally mounted at the lower right and lower left of the driven sprocket 5, respectively.

Between the rollers 8 and 90 on the same side of the rack 3 and slightly outward of the guide roller 6, a belt tensioning roller 10 is pivotally mounted, parallel to the axis 4' of the drive sprocket 4 and having the same length. has been done.

A narrow endless belt 11 is attached to each of the rollers 8, 10, 9.
The water hook is turned an appropriate number of times and runs in the direction shown by the arrow in the figure.

On the right and left sides of the first drive sprocket 4 in the rack 3, there are a drive roller and a driven roller, respectively, which are parallel to the axis 4' of the drive sprocket 4 and in contact with each other, and rotate in the direction shown by the arrow in the figure. A pair of upper and lower film introducing rollers 12 and 13 and leading-out rollers 14 and 15 that also serve as a film squeezer are pivotally provided.

Below and to the right of the drive sprocket 4 in the rack 3 and above the guide rollers 6 in the right row, and below and to the left of the drive sprocket 4 and above the guide rollers 6 in the left row, there are respectively parallel and approximately equal lengths. Upper film guide pieces 16 and 17 forming a shape are fixedly provided, and on the outer surfaces of both guide pieces 16 and 17, film guide surfaces 16a that are curved in an arc shape are respectively provided.
, 17a are formed.

Directly above the driven sprocket 5 in the rack 3,
A lower film guide 18 is fixedly installed parallel to the guide roller 6 and having approximately the same length, and an arcuate film guide surface 18a is formed on the upper surface of the lower film guide 18.

Note that two fins 18b are provided protruding from the left and right side surfaces of the guide body 18, respectively, and the endless belt 11 passes between adjacent fins 18b.

A film introduction piece 19 is fixed to the upper right side of the right introduction rollers 12 and 13 of the rack 8 and is parallel to and of equal length, and the lower surface thereof has an arcuate film guide surface 19a. A slight gap 20 is provided between the introduction roller 13 and the introduction roller 13 .

Film introduction roller 1 in the fixing tank 2 located above and to the left of the lead-out rollers 14 and 15 in the rack 3 and next to it
At the upper right of 2' and 13', a film guide 21 parallel to them and having the same length is connected to a horizontal shaft 2 fixed to the film guide 21.
It is set up with 2.

A guide surface 21a is formed on the lower surface of the film guide body 21 and is indented in an arc shape.

As shown in FIGS. 2 and 3, a lever 23 facing upward is fixed to the end of the horizontal shaft 22 passing through the rack 3, and its free end is connected to the side via a connecting rod 24. It is linked to the operating rod 255 of the solenoid 25, which faces in either direction.

Normally, the guide surface 21a of the guide body 210 is almost horizontal as shown by the solid line in FIG. 1, and gaps 26 and 27 are formed between the lead-out roller 15 and the introduction roller 13', respectively. There is.

When the solenoid 25 is actuated, the guide body 21 rotates as shown by the imaginary line in FIG.

At this time, the gap 26 widens, and the lower end of the guide surface 21a approaches the left surface of the lower guiding roller 14.

Above the left and right sides of the drive sprocket 4 in the rack 3, there are guide rollers 28, 2 which are parallel to and have the same length.
8 is installed as a pivot.

Above the guide rollers 2B and 28 in the rack 3, a wide guide member 29 is fixedly installed parallel to the guide rollers 2B and 28, and has a wide left and right width, and has an arcuate guide surface 29a formed on the lower surface of the guide member 29. has been done.

On the right side of the introduction piece 19, which is inserted into the rack 3, are a pair of upper and lower rollers consisting of a driving roller and a driven roller, which are parallel to the introduction piece 19 and have the same length, and which rotate in the direction shown by the arrow in the figure in contact with each other. A film feed roller 30, 30 is pivotally installed, and a film insertion slot 31 is provided on the right side thereof.

On the left side of the fixing tank 2, although not shown, a washing tank and a drying tank, which have the same configuration as the developer tank 1 described above, are provided adjacent to each other.

Note that 32 is a developer and 33 is a fixer.

In the automatic developing machine described above, the exposed film inserted through the film insertion opening 31 is passed through the feed rollers 30 and 3.
The guide roller 6 and the right endless belt 1 are introduced into the automatic developing machine by the introduction piece 190 and the guide surface 19a, the introduction roller 12 and 13, and the guide piece 160 and the guide surface 16a.
10, gradually descends within the developer 32, and then is guided by the guide surface 18a of the lower guide body 18 between the left guide roller 6 and the left endless belt 110, and then gradually rises. , is guided by the guide surface 17a of the guide piece 17, and is developed before passing through the guide rollers 14 and 15, and is then introduced into the fixing tank 2 by the guide surface 21a of the guide body 210 and the introduction rollers 12' and 13'. be done.

Therefore, while processing a large number of films, dirt and foreign matter gradually adhere to each roller and the endless belt 11, which adversely affects the finished film.

Figure 4 shows 340 examples of cleaning sheets used to clean each roller in such a case. A leader film 34b made of polyethylene or polyethylene is provided at the longitudinal end.
It is formed by pasting.

The width of the cleaning sheet 34 is shorter than the length of each roller, preferably approximately the same length as each roller, and the total length of the cleaning sheet 34 is too long so that when it is circulated between the rollers, it will not move forward or backward. The size of the developing tank 1 is appropriately determined so that the ends do not overlap each other, and so that the end portions are too short and come off the roller, and the moving force is not transmitted and the developer stagnates in the middle of the circulation path.

Next, a procedure for cleaning each roller of an automatic developing machine using this cleaning sheet 34 will be described.

When the rollers and endless belt of the above-mentioned automatic developing machine become extremely dirty, film processing is stopped, the solenoid 25 is activated, and the guide body 21 is rotated as described above to clean the guide surface. 21a is opposed to the lead-out rollers 14 and 15.

After that, while operating the automatic developing machine, insert the insertion slot 31.
to the cleaning sheet 34 and its leader film 34b.
Insert more.

Then, the cleaning sheet 34 passes through the developer tank 1 and the lead-out roller 14.15 in the same way as the film, but is guided by the guide surface 21a of the guide body 210 facing the lead-out roller 15 above. Then, the cleaning sheet 34 faces toward the upper right.

Then, the cleaning sheet 34 is directed to the right above the guide roller 28° 28 by the guide 290 [I29a], passes through the gap 20, and passes through the introduction roller 12,
130, it is guided into the developer tank 1 again and automatically circulates along a circulation path 35.

By repeating this circulation an appropriate number of times, all the dirt adhering to each roller and the endless belt 11 is transferred to the sponge sheath 34a, and each roller is cleaned.

After the cleaning of each roller of the developer tank 1 is completed, when the attraction of the solenoid 25 is released, the guide body 21 returns to its normal state, and the cleaning sheet 34 is automatically fixed while being guided by its guide surface 21a. Since it moves to tank 2, solenoid 25 is turned on again.
By operating the rollers and endless belt of the fixing tank 2, similarly to the developer tank 1, it is possible to automatically clean the rollers and the endless belt.

As described above, according to the present invention, the rollers and the like of each processing tank can be automatically cleaned without taking out the rack 3, so that the amount of labor and time required for cleaning can be significantly reduced.

Further, after the cleaning sheet 34 is circulated in the developing tank 1 and cleaning of the rollers, etc. of this tank 1 is completed, the cleaning sheet 34 is circulated.
is transferred to the fixing tank 2 by passing through the lead-out rollers 14 and 15, and the rollers of the tank 2 are cleaned, so that consumption of chemicals due to taking out and bringing in each calibration amount of processing liquid is minimal.

In the above description, the guide body 29 and the guide roller 2B,
2B, the cleaning sheet 34 is automatically circulated, but instead of these, groove-shaped guides facing each other with a slight interval may be provided. Alternatively, the cleaning sheet 34 directed toward the film introduction side by the guide body 21 may be manually fed in again.

In the above embodiment, the guide body 21 is assumed to rotate, but it can also be implemented as one that moves other than rotation. By preparing a guide body with a guide surface suitable for returning to the side and using these interchangeably, the intended purpose can be achieved.

Furthermore, without using a guide, the guide roller 14,
By changing the direction of the plane including the 150 axis, it may be returned to the film entrance side.

Furthermore, although the above description has been made regarding the case where the rollers and the like of a belt roller type automatic developing machine are cleaned by the method of the present invention,
It goes without saying that the present invention can also be applied to a roller type automatic developing machine.

[Brief explanation of drawings]

FIG. 1 is a central longitudinal sectional front view showing essential parts of an example of an automatic processor for carrying out the method of the present invention, FIG. 2 is a sectional view taken along the line A--A in FIG. 1, and FIG. FIG. 2 is a sectional view taken along line B-B, and FIG. 4 is a perspective view of the cleaning sheet. 1...Developer tank, 2...Fixer tank, 3...
...Rack, 4...Drive sprocket, 4
'...Axle of drive sprocket 4, 5...
・Followed sprocket, 6...Guide roller, 7.
...Chain, 8...Drive roller, 9.
...Followed roller, 10 ... Belt tension roller, 11 ... Endless bell), 12, 13 ...
...Film introduction rollers, 14, 15...
・Film lead-out rollers, 16, 17... Guide pieces, 16a, 17a... Guide surfaces, 18...
... Guide body, 18a ... Guide surface, 18b ...
...Fin, 19...Introduction piece, 19a...
... Guide surface, 20 ... Gap, 21 ...
・Guide body, 21a... Guide surface, 22...
・Horizontal axis, 23... Lever 24... Linking rod, 25... Solenoid, 25a...
・Operating rod, 26, 27... Gap, 28...
... Guide roller, 29 ... Derivative, 29a.
...Guide surface, 30...Feed roller,
31...Insertion port, 32...Developer, 3
3...Fixer, 34...Cleaning sheet, 34a...Sponge sheet, 34b...
...Rieterfilm, 35... Circulation trajectory.

Claims (1)

[Scope of Claims] 1. In an automatic film developing machine in which a exposed film is guided by a number of rollers, etc. and developed while passing through the processing tank, a film lead-out section in the processing tank is provided. A guide part is provided to allow the emerging film to be discharged from the iron tank or to be returned to the film introduction part side of the tank, and the guide part is used to return the film to the film introduction part side. In the desired state, a cleaning sheet is sent from the film introduction part to clean each roller, etc., and the cleaning sheet is returned toward the film introduction side to circulate in the tank, and the guide part is , when the film is to be discharged, the cleaning sheet is sent in, and the cleaning sheet that has finished cleaning the roller is sent to the next processing tank via the film delivery roller. Groove tank method for rollers, etc. in automatic developing machines. 2. The guide part is a guide body that can rotate around an axis parallel to the rollers, and by rotating the guide part, the film is discharged from the processing tank or returned to the film introduction part side of the tank. The method according to claim 1, wherein the method is as follows. 3. A patent claim in which the guide part is a non-rotationally movable guide body, and by moving the guide part, the film is discharged from the processing tank or returned to the film introduction part side of the tank. The method described in Scope No. 1. 4. The guide section is configured with a pair of film leading-out rollers, and by changing the direction of the plane including the axis of both rollers, the film can be discharged from the processing tank or returned to the film introducing section side of the tank. The method according to claim 1, wherein the method comprises: 5. The guide section is configured with a guide body equipped with a guide surface suitable for discharging the film and a guide body equipped with a guide surface suitable for returning the film to the introducing section side, and these guide bodies are selected and used. The method according to claim 1, wherein the film is discharged from the processing tank or returned to the film introduction part side of the processing tank.