JPS6026211B2 - Cleaning method and cleaning sheet for rollers, etc. in automatic film processors - Google Patents

Description

Detailed Description of the Invention: An automatic developing machine that automatically develops exposed sheet film, roll film, or photographic paper has a developing tank, a fixing tank, a rinsing tank, and a drying tank in which the film is adjacent to each other.
While being sequentially conveyed and passed by a large number of rollers, etc.,
Although all the processing is carried out, dirt and foreign matter gradually adhere to the rollers and the like during use, which adversely affects the finish of the film.

In a normal automatic processor, each roller, etc. is mounted on a rack that is installed inside the processing tank so that it can be moved in and out, so the rack is removed and cleaned manually with a cloth or the like on the sink. However, cleaning required a lot of effort and time. In the present invention, by circulating a cleaning sponge sheet several times in place of the exposed film along each roller without taking out the rack, the deposits on each roller are transferred onto the sponge sheet and cleaned. The present invention relates to a method for cleaning a conveying roller in an automatic developing machine that eliminates the drawbacks of conventional manual cleaning means, and a cleaning sheet used to carry out this method, as shown in the attached drawings below. This will be explained in detail based on.

Figure 1 shows the developing tank 1 of a belt-row type grain developing machine, in which an exposed film is sandwiched and conveyed between a plurality of thin, narrow endless belts arranged in parallel with the rollers in the processing tank. 2 shows a part of the fixing tank 2 having the same configuration.

A driving sprocket 4 and a driven sprocket 5 are pivotally mounted at the upper center and lower center of the developing rack 3 installed inside the developing tank 1, respectively, and are parallel to each other and facing in a direction perpendicular to the paper surface of FIG. has been done.

Between the sprockets 4 and 5 in the rack 3, a large number of guide rollers 6 in two rows on the left and right are attached to the ends of the guide rollers 6, parallel to the shaft 4' of the drive sprocket 4 and arranged vertically. They are connected by a chain 7 through a sprocket (not shown), and the chain 7 runs in the direction indicated by the arrow in the figure. Driving rollers 8, 8 parallel to the shaft 4' of the driving sprocket 4 are pivotally installed at the lower right and lower left of the driving sprocket 4 in the rack 3 in FIG. Driven rollers 9, 9 parallel to the axis 4' of the drive block 4 are respectively pivotally mounted on the . Between the rollers 8 and 9 on the same side of the rack 3 and slightly outward from the guide roller 6,
A belt tensioning roller 10 is pivotally mounted parallel to the shaft 4' of the drive sprocket 4. Each of the above rollers 8, 10,
Several narrow endless belts 11 are wound around the belt 9 and run in the direction shown by the arrow in the figure. The right and left sides of the drive sprocket 4 in the rack 3 are parallel to the shaft 4' of the drive sprocket 4, respectively, and rotate in the directions indicated by arrows in the drawing while being in contact with each other. Film guiding rollers 12 and 13, which are made up of a driving roller and a driven roller, and squeeze rollers 14 and 15, which also serve to guide the film, are pivotally installed.
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 loaf 6 in the left row, there are respectively parallel and approximately equal lengths. Upper film guide pieces 16 and 17 are provided, and the outer surfaces of both guide pieces 16 and 17 are provided with film guide surfaces 16a and 16a, respectively, which are curved in an arc shape.
17a is formed.

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

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

Above the right guide rollers 12 and 13 in the rack 3, a film introduction piece 19 is fixed parallel to and of equal length to the guide rollers 12 and 13, and an arc-shaped film guide surface 19a is formed on the lower surface of the film introduction piece 19. A slight gap 20 is provided between the roller and the yielding roller 13. A filter guide 21 is fixed to the upper left of the squeezing rollers 14 and 15 in the rack 3 and to the upper right of the guide rollers 12' and 13' of the fixing tank 2, and is parallel to them and has the same length. , a film guide surface 21a having an arc-shaped indentation is formed.

With respect to the film guide 21, gaps 22 and 28 are provided between the squeezing roller 15 and the guiding roller 13', respectively.

On the right side of the introduction piece 19 in the rack 3, there is a set of film introduction 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 indicated by the arrow in the figure in contact with each other. 24, 24 are installed vertically, and a film introduction port 25 is provided on the right side thereof.

To the left of the fixing tank 2, although not shown, a washing tank and a drying tank having the same structure as the developer tank 1 described above are provided adjacent to each other.

Note that 25 is a developer and 27 is a fixer.

In the automatic developing machine described above, the exposed film inserted through the film inlet 25 is introduced into the automatic developing machine by the introducing rollers 24, 24, and the exposed film is introduced into the automatic developing machine by the introducing rollers 24,
a, the guide rollers 12 and 13, and the guide surface 1 of the guide piece 16
6a, it is guided between the guide roller 6 and the right steamer belt 11, gradually descends in the developer 26, and then,
The guide surface 13a of the lower guide body 18 allows the guide loaf 6 to
After being guided between the endless belt 11 on the left side and gradually rising, it is guided by the guide surface 17a of the guide piece 17 and developed before passing through the squeezing rollers 14 and 15. Surface 21a and guide rollers 12', 13
' is introduced into the fixing tank 2. 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.

FIG. 2 shows an example of a cleaning sheet 28 used to clean each roller in such a case. For example, the longitudinal end of a sponge sheet 28a made of foam such as chloroprene rubber or vinyl chloride is A leader film 28b made of polyester, polyethylene, etc.
It is formed by pasting.

The width of the cleaning sheet 28 is shorter than the length of each roller, preferably approximately the same length as each roller, and the total length is too long when circulating between the rollers, as will be described later. The size of the developer tank 1 is appropriately determined so that the front and rear ends do not overlap each other, and so that the developer tank 1 does not come off the roller due to being too short and does not receive moving force and stagnates in the middle of the circulation.

Next, a procedure for cleaning each roller, etc. of an automatic developing machine using this cleaning sheet 28 will be described.

When the rollers and endless belt 11 of the automatic developing machine described above become extremely dirty, stop film processing, and while the automatic developing machine is running, insert a cleaning bag into the inlet 25 instead of the film. sheet 28, its leader film 28
Insert from b.

Then, the cleaning sheet 28 passes through the developer tank 1 similarly to the film. If the dirt on the rollers etc. cannot be removed sufficiently by passing the cleaning sheet 28 only once, then the leader film 2 is passed between the squeezing rollers 14 and 15.
3b, immediately insert its tip along the squeezing roller 15 into the gap 22 between the squeezing roller 15 and the induction body 21,
When manually introduced, the sponge sheet 28a also automatically passes through the gap 22.

Next, when the leading end of the leader film 28b is manually introduced along the yield roller 9 into the gap between the guide roller 13 and the introduction piece 19, the sponge sheet 28a is automatically introduced.
The cleaning sheet 28 passes through the gap 20 and is guided into the developer tank 1 again from between the guide rollers 12 and 13.
It circulates like a circulation trajectory 29. By repeating this circulation several times, all the dirt adhering to each loaf and endless belt is transferred to the sponge sheet 28a, and each roller is cleaned.

When cleaning of each roller in the developing tank 1 is completed, the cleaning sheet 28 is automatically moved into the fixing tank 2 by being guided by the guide surface 21a of the dielectric 21, as in the case of film processing. As in tank 1, each roller and endless belt 11 in fixing tank 2 can be cleaned.

As described above, according to the present invention, each roller can be automatically cleaned without taking out the rack 3, so the amount of effort and time required for cleaning can be significantly reduced, and the cleaning sheet Since it is equipped with a leader film, it is easy to insert it.

Also, when cleaning the rollers in each tank of an automatic processor, the rollers in the other tank are cleaned after the rollers in one tank are cleaned, so the chemicals are not wasted due to taking the processing liquid between the two tanks. Very little.

3 and 4 show different examples of cleaning sheets, and FIG. 3 shows a sponge sheet 28a composed of two sheets.
A leader film 28b is sandwiched between the fourth
In the figure, a leader film 28b is pasted over the entire surface of a sponge sheet 28a.

However, whether the sponge sheet itself has appropriate rigidity or not,
Alternatively, if the sponge sheet is provided with a core layer having appropriate rigidity, the leader film can be omitted.

Although the above description deals with cleaning the rollers and the like of a belt roller type eye-moving developing machine by the method of the present invention, the rollers of a roller-type eye-moving developing machine can also be cleaned in the same manner.

[Brief explanation of the drawing]

FIG. 1 is a central vertical sectional front view of an automatic processor, and FIGS. 2 to 4 are perspective views showing different examples of cleaning sheets. 1...Developer tank, 2...Fixer tank, 3...Rack, 4
... Drive sprocket, 4'... Shaft, 5... Driven sprocket, 6... Guide roller, 7... Chain, 8...
- Drive roller, 9... Followed roller, 10... Belt tension roller, 11... Endless belt, 12, 13... Guide roller, 14, 15... Squeezing roller, 16, 17... Guide piece,
16a, 17a... Guide surface, 18... Guide body, 18
a... Guide surface, 19... Introduction piece, 19a... Guide surface, 20...
- Gap, 21... Inductor, 21a... Guide surface, 22
．． 23...Gap, 24...Introduction roller, 25...
Inlet port, 26...Developer, 27...Fixer, 28.
...Cleaning sheet, 28a...Sponge sheet, 28b...
Leader film, 29... Circulation trajectory. Figure 1 Figure 2 Figure 3 Figure 4

Claims (1)

[Scope of Claims] 1. In an automatic film developing machine in which the exposed film is guided by a number of rollers or the like and developed while passing through the processing tank, the exposed film is placed in the processing tank. Instead of this, the rollers, etc. in an automatic film developing machine are characterized in that by passing a cleaning sheet at least once or more, the deposits on each roller, etc. are transferred to the cleaning sheet and cleaned. Cleaning method. 2. In an automatic film developing machine in which developed film is guided through a processing tank by a number of rollers, etc., a cleaning device is placed in the processing tank instead of the processed film. By circulating the sheet,
A cleaning sheet used for cleaning by transferring deposits on each roller, etc., and having a total length shorter than the approximate circulation length and longer than the distance between adjacent rollers that are farthest apart. A sheet for cleaning rollers, etc. in an automatic film developing machine, characterized by: 3. A cleaning sheet for an automatic film developing machine as set forth in claim 2, comprising a leader film extending from an end of a sponge sheet.