JPS62215956A - Automatic development processor improved drying efficiency - Google Patents

Abstract

PURPOSE:To decrease a noise, and to improve the drying efficiency by surrounding a drying fan with a box cover, and providing both blow-off and suction holes which are pierced on the cover. CONSTITUTION:At least one piece of drying fan 3 is placed in a box cover 4 of a drying part of an automatic development processor 1, and also, on the side opposed to both faces of a film of the cover 4, a blow-off port 8 of the drying fan, and a fitting plate which have pierced plural suction holes 9 in its peripheral edge are provided, plural pieces of suction holes 9 are pierced on the wall surface of the box cover of the opposite surface to the fitting plate 5 side, and when a sheet film is being carried, dry air is blown from both the surface and the reverse side of the film. Since the drying fan is provided in the box cover, a double wall is constituted of a facing wall of the device and the box cover, in the outside of the drying fan, a temperature of hot air is kept constant in the drying part, the heating efficiency of air is improved, and a noise is decreased. Also, since the inside of the box cover is narrow, the heat loss is very small.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to an automatic processing apparatus for developing photographic photosensitive materials, and more particularly to an automatic processing apparatus for X-ray film.

[Prior Art] Automatic processing machines that process photographic materials usually have processing tanks for developing, fixing, washing, etc. arranged in an array. After the photosensitive film passes through these processing tanks, it is dried in a drying section and then discharged. has been done. For example, as shown in FIG. 2, the film F inserted through the film insertion port II passes through a developing tank 12, a fixing tank 13, and a washing tank 14 equipped with transport rollers, and is sent to a drying section 15 where it is dried. and discharged. The drying section consists of a film transport rack, drying fan, drying heater, and exhaust fan inside the exterior wall of the equipment.The air inside the entire equipment is heated by the drying heater, and this hot air is blown onto both sides of the film. ing. At this time, a portion of the hot air that has removed moisture from the film surface is sent to the suction side of the drying fan for preservation, where it is warmed together with fresh air from outside. The other part was exhausted to the exhaust port of the exhaust fan, and the rest was exhausted from the film discharge section. Known methods for blowing out this hot air include a nozzle method and a cross-flow fan method.

[Problems to be solved by the invention] However, with the nozzle method, the air outlet is small and there is great resistance to blowing out the air, so a large-capacity fan is required to obtain a large wind f+t, and therefore power consumption is low. In many cases, not only do they have the drawback of high fan noise, but they also require a large drying section space and have poor thermal efficiency. In addition, the cross-flow fan method has a large air volume, but the static pressure is low, so if there is resistance at the air outlet, the air will blow! Therefore, the air from the drying fan must be blown directly onto the film surface. Since +i1 is different, uneven drying occurs on the film surface. In this case, in order to increase the air volume, the entire air outlet of the drying fan must be made larger, which adversely affects thermal efficiency. It is possible to increase the size of the heater depending on the wind fit, but it is not a good idea from the viewpoint of power consumption. Furthermore, in the past, a drying fan box cover or the like was not provided, and the air inside the processing apparatus was circulated.

An object of the present invention is to provide an automatic development processing apparatus that is compact, has good drying efficiency, and consumes little power. Another object of the present invention is to provide an automatic current processing device that can be installed in a small room with low noise.

[Means for Solving Problem L] The object of the present invention is to provide an automatic processing apparatus having each step of a developing tank, a fixing tank, a washing tank, and a drying section. In addition to arranging a drying fan, a mounting plate having an air outlet for the drying fan and a plurality of intake holes on the periphery thereof is arranged on the side opposite to both sides of the film of the box cover, and a mounting plate is arranged on the side opposite to both sides of the film of the box cover. This was achieved by providing a plurality of air intake holes in the wall surface of the cover and blowing dry air from both the front and back sides of the sheet film while it was being conveyed in the drying section. Furthermore, in the automatic processing apparatus of the present invention, the drying fan is provided inside the box cover, so that the outside of the drying fan is constituted by a double wall of the apparatus exterior wall and the box cover, and the hot air inside the drying section is It can maintain a constant temperature, has good air heating efficiency, and produces little noise. Furthermore, since the inside of the box cover is narrow, heat loss is extremely small, and the air is heated efficiently by the heater.

The device of the present invention is a cross-flow fan system equipped with a drying fan, which has low static pressure, and has a mounting plate with a drying fan outlet facing both sides of the filter J. As shown in FIG. 3, the mounting plate is provided with intake holes in different arrangements on the front and back sides of the film. This is the B adjustment of the wind pressure inside the drying fan, which blows dry air uniformly over the entire surface of the film, and is set by calculating the temperature distribution of the air. Particularly in the case of horizontal conveyance of the film, air tends to stay in the upper part, so it is better to provide a large number of constrictions. Intake holes and exhaust holes are also provided on the wall opposite to the outlet of the box cover (see Figure 3). In particular, since the drying fan is placed inside the drying pouch and scover, the pressure inside the box is reduced, creating a large resistance on the suction side of the drying fan and reducing the air volume. Either narrow the holes in the central part, where the air volume is high, and add resistance to the suction side of the central part to make the air volume from the outlet uniform as a whole, or conversely, create almost no resistance on the suction side. Eliminate this and add a resistor to the center of the blowing side to make the whole thing uniform. These can prevent uneven drying on the film surface. In this way, by adjusting the air intake amount and the blowout flk of the drying box cover, it was possible to improve the drying efficiency.

The automatic processing apparatus of the present invention relates to the entire mechanism of the drying section,
Unitized installation on the upper box cover, transport rack, lower box cover, etc. is easy to operate. As shown in FIG. 1, it is divided into an upper drying fan, a film transport rack section, and a lower drying fan. These are convenient for individual maintenance. Especially when the film is jammed in the transport rack, the film can be easily taken out.

Next, the present invention will be explained based on specific examples shown in the drawings, but the present invention is not limited thereto.

FIG. 1 is a schematic diagram showing the entire drying section of the automatic processing apparatus of the present invention, where 1 is the drying section, 2.2 degrees is a drying fan 3.
The fan section with a built-in fan 3 is 2°, and the lower fan section is a drying fan 3' and 3°, each of which is equipped with a plurality of fans. These drying fans 3.3, 3°, and 3° are surrounded by a box cover 4.4°, which forms a double structure with the exterior wall, and keeps the air inside the drying section warm. Reference numeral 5 denotes a mounting plate provided on the film surface side of the fan section 2, and is provided with an air outlet 8 for a drying fan. Reference numeral 6 designates a transport rack having a large number of film transport rollers arranged therein, 7 an exhaust fan section, and 9 an intake hole.

In the automatic processing apparatus of the present invention, the film that has passed through each processing tank is placed in the drying section, and heated air from a drying fan is ejected from the air outlet 8 of the mounting plate to blow hot air onto both sides of the film with a uniform air volume. [Effects of the Invention] The automatic processing apparatus of the present invention surrounds the drying fan with a box cover, and the cover is provided with holes for blowing out and suction. It is quiet, generates little noise, and has good thermal efficiency, making it possible to significantly improve drying efficiency.

Furthermore, since it is unitized, it is not only easy to take out the film when it jams, but also makes it easy to maintain each part.

[Brief explanation of drawings]

Fig. 1 is a schematic diagram showing the side surface of the drying section of the apparatus of the present invention;
The figure is a schematic diagram of an automatic developing processing apparatus, and FIG. 3 is a partially cutaway perspective view showing an embodiment of the drying box cover of the apparatus of the present invention. ■ is a drying section, 2 is a fan section, 3 is a drying fan, 4 is a box cover, 5 is a mounting plate 6 is a transport rack, Patent applicant: Konishiroku Photo Industry Co., Ltd.

Claims (2)

[Claims] (1) In an automatic processing apparatus having each process of a developing tank, a fixing tank, a washing tank, and a drying section, at least one drying fan is disposed inside a box cover of the drying section and facing both sides of the film of the box cover. A mounting plate with a hot air outlet of a drying fan and a plurality of intake holes on the periphery thereof is provided on the side where the drying fan is disposed. 1. An automatic developing processing apparatus characterized in that the sheet film is individually closed and drying air is blown from both the front and back sides of the film while the sheet film is being conveyed in a drying section, thereby uniformly drying the film. (2) The automatic processing apparatus according to claim 1, wherein the drying section is constructed with a double wall by the box cover and the apparatus exterior wall to maintain a constant temperature of the drying air.