JPH04104662U - Squeeze device in automatic photographic film processing machine - Google Patents

Abstract

(57) [Summary] [Purpose] In the squeeze operation prior to sending the developed film to the drying chamber, it is possible to effectively remove the processing liquid adhering to the film by a pair of rollers that make up the squeeze device, and to The aim is to simplify the daily maintenance work performed on rollers. [Structure] A pair of rollers constituting the film squeeze device (1), that is, a non-water-absorbing soft resin roller (2) for the roller in contact with the emulsified side of the film, and a roller in contact with the base side of the film. is composed of a non-water-absorbing hard resin roller (3).

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This invention relates to a film squeeze device in an automatic photographic film processing machine. .

0002

[Conventional technology]

The film squeeze device in an automatic photographic film processor is a series of film processors. A pair of pressure rollers is placed in the film conveyance path between the final processing tank and the drying room. The film is fed into the drying chamber using a pair of squeeze rows. During the process of running with pressure between the rollers, the processing liquid adhering to the film surface is removed. The quizzes are then transferred to the drying room.

0003 The conventional squeeze device, which consists of a pair of rollers, squeezes the emulsified surface of the film. A pair of rollers made of highly absorbent and elastic sponge are used to protect the It is composed of Squeeze rollers are used daily for their maintenance, processing liquid, more specifically final processing liquid. The stable processing solution (STB solution) and a new processing solution of the same solution are used for cleaning, and then Unnecessary processing liquid contained within the roller must be sufficiently drained before use. be done.

0004

[Problem that the idea aims to solve]

In the conventionally used water-absorbent squeeze rollers, water is absorbed into the roller. The treated processing liquid becomes concentrated in the roller over time, which causes the roller and Squeeze unevenness sometimes occurred on the printed surface of the film that was in contact with the force. In addition, when cleaning the squeeze roller for maintenance, use the same treatment as the final treatment solution. Since a chemical solution is used, the maintenance work will result in high costs. .

[0005] In addition, the expansion of the squeeze roller itself due to water absorption depends on this roller. This results in an increase in the transport speed of the film, which may cause the film to be stretched and The film surface was damaged, which caused problems in proper development. In addition, when the water-absorbing roller reaches a saturated state due to water absorption, cannot expect any more squeeze work, and in this aspect also squeeze low The maintenance of Ra required a lot of work.

[0006] This invention solves these problems inherent in conventional water absorbent squeeze rollers. The purpose is to take full advantage of the flexibility of water-absorbent rollers while also making maintenance easier. Nance provides a squeeze roller device that is simple and efficient in many ways. The porpose is to do.

[0007]

[Means to solve the problem]

In order to achieve the above purpose, in the automatic photographic film processing machine according to this invention, Among the processing tanks arranged in a series for film, it is installed between the terminal processing tank and the drying room. In the squeeze device, the roller that comes into contact with the emulsified surface of the film is made of soft, non-water-absorbing material. One side of the roller that is in contact with the base surface of the film is made of hard, non-water-absorbing resin. Each is characterized by being constructed using a greasy roller.

[0008]

[Effect]

A pair of rollers that constitute the squeeze device, namely a non-water-absorbing soft resin roller and The film is rolled between hard resin rollers, which are also non-water-absorbing, and hardened by soft rollers. It moves along the hard roller side while receiving pressure from the roller side. At this time The surface of the hard resin roller is extremely smooth with a JIS surface roughness of Rmax 6.3 or less. As a result, there is no residual liquid adhering to the roller surface, and the pair of rollers is non-absorbing. Since it is made of water-based resin material, any remaining liquid on the film surface will be removed from the film. It is efficiently discharged as if it were squeezed out from the surface.

[0009]

【Example】 Next, we will discuss the specifics of the squeeze device in the automatic photographic film processing machine according to this invention. A practical example will be explained using the drawings. Figure 1 shows a schematic vertical view of an automatic photographic film processing machine equipped with a squeeze device according to this invention. In the sectional view, a pair of upper and lower squeeze rollers (2) ( 3) is a second stabilizing tank (9) located at the end of a series of processing tanks and a drying room (10). ) is installed on the film transport path between the

0010 The processing tanks connected in a line are a color developing tank (4), a bleaching tank (5), First fixing tank (6), second fixing tank (7), first stabilizing tank (8), second stabilizing tank (9) and and drying chambers (10) are lined up in sequence, and each tank filled with various processing solutions and the drying chamber have two chambers. Feed roller (12) with two press-contact small diameter rollers (11) (11), respectively A rack (14) equipped with a turning roller (13) is inserted, and first the color is developed. The film (F) is fed into the developing tank (4) from above through a tar placed at the bottom of the tank. The turn roller (13) reverses and rises, and the inside of the processing tank is placed at the top of the processing tank. While being guided by the guide (16), the prescribed filter is applied to each tank while meandering in sequence. The film travels while being processed and reaches the second stabilizing tank (9) at the end. It is sent into a drying room (10) equipped with a drying fan (15) of Pressing small diameter rollers (11) (11) attached to the installed drying rack (14) ) with the feed roller (12) and turn roller (13) each having A series of film processing progresses as the film is dried while being guided by the descending and ascending movements. do.

[0011] As shown in Figure 2, it is located above the boundary between the second stabilizing tank (9) and the drying chamber (10). The squeeze device (1) consists of a pair of upper and lower rollers (2) and (3). Among them, the roller (2) located above and in contact with the emulsified side of the film transfers it to the film. Soft synthetic resin with hardness M (Rockwell hardness M scale) to improve adhesion. material, such as ethylene propylene rubber (material symbol EPDM), Roller (3) located at the bottom, responsible for the driving force, and in contact with the base side of the film is a hard synthetic resin material with a hardness of M80 (Rockwell hardness M scale), such as polypropylene. With ropyrene (material symbol PP) or polyacetal (material symbol POM) configured.

0012 In squeezing work using a squeeze roller, This occurs on the base side of the film, and therefore the hard resin material on the base side The roller (3) is set to a JIS surface roughness of Rmax6.3S or less, and This prevents damage to the emulsified surface of the film, and also prevents damage to the emulsified surface of the film. In contact with the emulsifying side of the film to help the film adhere to the roller (3) The roller (2) made of a soft resin material has a JIS surface roughness of Rmax12.0S or higher. is set below. Also, the pressure bonding strength of the pair of rollers (2) and (3) constituting the squeeze device (1) does not greatly affect the squeezability of the film, but the soft roller (2) side It is important that the film does not deform to the extent that it affects transport. In this invention, the pair of squeeze rollers (2) and (3) are both non-water absorbent. Since it is constructed with a resin roller, there is a roller between both rollers (2) and (3). When the film is moved in pressure contact with the roller, residual liquid ( S) is squeezed out using pressing force, and the film with a lot of residual liquid is squeezed out from both sides of the film. Efficiently discharge from the base side (see Figure 3).

[0013]

[Effect of the idea]

This idea creates a gap between a non-water-absorbing soft roller and a non-water-absorbing hard roller. By configuring the squeeze device with a pair of rollers with different hardness, the squeeze The adhesion of the hard roller to the base side of the film, where unevenness often occurs, is As a result, the occurrence of squeeze unevenness on the film surface is largely eliminated. In addition, this idea consists of a pair of rollers made of non-water-absorbing resin material. It is now possible to wash the rollers with water, making it easier to maintain the squeeze rollers. At the same time, maintenance costs can be reduced.

[0014] In addition, the squeeze roller itself is prone to low pressure caused by the inclusion of processing liquid inside the roller. There is no diameter expansion phenomenon caused by the expansion of the roller, and this reduces the film transport speed. There are no changes or variations, and stable film transport and quality maintenance are possible at all times. In addition, this problem occurred when cleaning and maintaining conventional water-absorbing rollers using treatment liquid. Time course of impregnation of processing liquid into the roller, discharge of processing liquid, and squeezing work At the same time, there is a risk of squeezing unevenness on the film surface due to concentration of processing liquid in the roller. Inadvertently, or during cleaning and maintenance work using water, the roller itself becomes saturated with water absorption. Since this will not cause any damage, you can expect a semi-permanent squeeze treatment using a roller. Ru. Also, the surface roughness of the squeeze roller, especially the surface roughness of the hard roller on the film side. By using smooth rollers with a speed of Rmax6.3S or less, the processing liquid It does not adhere to the roller surface, which enables more advanced squeeze processing.

[Brief explanation of drawings]

FIG. 1 is a schematic vertical sectional view of an automatic photographic film processing machine equipped with a squeeze device embodying the invention.

FIG. 2 is an enlarged detailed view of section A in FIG. 1;

FIG. 3 is an explanatory diagram of a squeeze operation that focuses on squeezing out with a squeeze roller.

[Explanation of symbols]

1 Squeeze device 2 Non-water absorbing soft resin roller 3 Non-water absorbent hard resin roller

Claims (2)

[Scope of utility model registration request] Claim 1: The roller on the side that contacts the emulsifying surface of the film is made of a soft, non-water-absorbing resin roller, while the roller on the side that makes contact with the base surface of the film is made of a hard, non-water-absorbing resin roller. A squeeze device in an automatic photographic film processing machine. 2. The soft resin roller has a JIS surface roughness Rmax of 12.0S or less, and the hard resin roller has a JIS surface roughness of Rmax 12.0S or less.
2. The squeeze device for an automatic photographic film processing machine according to claim 1, wherein the IS surface roughness Rmax is set to 6.3 or less.