JPS5835375A - Drier - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a drying device for drying stamp N paper, photographic film, etc., comprising a WTL11 for circulating drying air. Photographic materials such as paper stamps and sheets of photographic film (hereinafter referred to as
A drying device used in an automatic viewing machine (photographic ladle) is used at the end of the processor to dry the imaged, fixed, and washed material before winding it up. The drying air circulating in the closed system within the drying device needs to be dehumidified so that its moisture content does not rise excessively.

For dehumidification, a dehumidifier is arranged at the bottom of the drying device so that a blower for circulation of dry air sucks dry air through the dehumidifier. The dehumidifying capacity of such a dehumidifier is limited, and it is not necessary to constantly pass the entire amount of dry air through the dehumidifier, so the circulation blower is not only used to process the air that has passed through the dehumidifier. Even the air that has not passed through the dehumidifier is directly inhaled. However, the disadvantage in such a case is that the heated drying air is immediately sucked in by the blower before it has sufficiently spread over the photographic material to be dried. Such drying equipment is therefore not very reliable and is uneconomical to operate.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a drying device for photographic materials which is constructed so that only the dry air to be dehumidified is reheated and the reheated air is not returned to the heating means.

A drying device according to the invention which achieves this object consists of a housing and a device for circulating dry air within the housing, and has at least one circulation blower for the dry air inside the housing.

It is characterized by having at one end of the housing a bypass duct with a built-in dehumidifier and built-in heating means for a portion of the dry air within the housing. In other words, the blower that sucks dry air through the dehumidifier and then blows the dry air to the heating means does not double as a blower to circulate the entire amount of dry air.The blower located behind the dehumidifier constantly dehumidifies the air. At least one further blower is provided for circulating drying air within the drying device while drawing dry air through the container.

With this configuration, only the air that has been dehumidified in advance is heated.

Therefore, in the drying apparatus of the present invention, less heat is required, and the drying air is repeatedly circulated through the housing by a blower in the housing to contain moisture removed from the photographic material passing through the housing. Since the drying air is not reheated until the drying temperature is reached, operating costs are lower compared to conventional drying equipment.

The amount of air passed through the dehumidifier and heating means by the blower is preferably limited by the dehumidifier's ventilation performance in order to keep capital and operating costs low.

In one embodiment of the drying device of the invention, the circulation blower is located at the upper end of the housing, the bypass duct has an inlet near the bottom of the housing and an outlet near the top of the housing. The circulation blower blows dry air down inside the housing, and at the same time directly takes in the heated air that has been dehumidified in the bypass duct. The air within the drying device that has not been sucked into the bypass duct is circulated within the housing and is blown down again by the circulation blower. By doing so, the photographic material moving through the drying device can be thoroughly and uniformly dried.

In an embodiment of the drying device of the invention, the heating means are arranged above the dehumidifier in a vertically disposed section of the bypass duct. Air drawn in by a blower provided in the bypass duct enters the duct, is passed upwardly through a dehumidifier, and enters the boosting means where it is heated. The heated drying air is returned to the housing of the dryer and circulated within the housing.

Preferably, a dish for receiving condensed water from the humid air and means for draining the condensed water are provided below the dehumidifier.

The inlet of the dehumidifier is cleaned by dripping condensed water into the dehumidifier.

By arranging the dehumidifier 1# in the bypass duct in this way, hot air will not flow to the dehumidifier condenser, thus allowing the dehumidifier condenser to operate at optimum efficiency.

The housing of the drying device of the present invention may be divided into a drying chamber and a conditioning chamber by vertical partitions. The photographic material passing through the drying chamber is simultaneously dried and heated within the drying chamber.

If the photographic material is rolled up while it is still warm, it will put unwanted tension on the photographic material when it cools down.
Water may condense on the photographic material. A control room is a means to solve such problems. In the conditioning chamber, the photographic material heated in the drying chamber is cooled by outside air. The degree of cooling is such that the temperature of the photographic material hardly increases when it leaves the conditioning chamber. the result,
The photographic material is rolled up without condensation or tension, and is processed in other steps if necessary.

The drying device 9 of the present invention is preferably used in a photographic developing machine, especially an automatic photographic developing machine, and it dries the photographic material, which is placed in a side layer from the developing machine's tank and is fed through the drying device, in as small a space as possible, and then It is constructed in such a way that it is delivered in a condition suitable for processing and winding, and the problems of water condensation on the photographic material and all other problems are solved.

Next, an embodiment of the drying apparatus of the present invention will be described based on the drawings, but the present invention is not limited to this embodiment.

The drawing is a schematic side sectional view of one embodiment of the drying device of the present invention. The drying device (1) has a housing (2) which is connected to a drying chamber (4) by a partition (3).
) and a control room (6). A plurality of rollers (6) are arranged in the drying chamber (4) and the adjustment chamber (5) so as to be biased to one side. Those rollers (6) are equipped with a developing machine (
(not shown) and from the rear (8) of the drying device.
Photographic materials (7) sent from the store are hung.

The bypass duct (9) is provided integrally with the drying device (1) in front of the drying device (1) (on the developing machine side). The inlet QG of the bypass duct (9) is disposed near the bottom aIl of the housing, and the outlet (I) of the one-line duct (9) is disposed near the top I!(2) of the housing.

Inside the bypass duct (9), in order from the bottom, a dehumidifier I removes moisture in the passing air by cooling and condensing it, a suction and pressure blower 0, and a dehumidifier (14) by heating the blower a. A heating means is provided for heating the dry air sucked in and sending the dry and warm air into the drying chamber (4).

A tray is provided below the dehumidifier a4 in the bypass duct (9) to receive condensed water dripping from the dehumidifier. The condensed water collected in the tray is drained to the outside of the drying device through pipe α.

The inlet of the dehumidifier U (b) is cleaned by water that condenses and drips into the dehumidifier α field.

The outlet α hot water of the bypass duct (9) is 1. Housing (2
) is located at the top of bracket 0.

In this embodiment, a drying chamber (
4) Two circulation blowers (to), Qυ and sub! I
- One blower for room (5) is provided.

The circulation blower ■, Cl1) ensures that dry air constantly circulates within the drying chamber (41) and spreads over the photographic material (7) moving within the drying chamber. A portion of the dry air is circulated by the blower α9. Dehumidified and heated air is supplied from the bypass duct (9) into the drying chamber only by the lid of the air that is sucked into the bypass duct (9) and removed from the drying chamber (4).Bypass duct ( 9) sucks in an amount of air commensurate with the capacity of the dehumidifier and uses it for dehumidification and reheating. The circulation of this dry air results in intensive mixing with the dehumidified and heated air delivered from the outlet 03 of the bypass duct (9).

゛The blower (2) installed in the adjustment chamber (51) sucks outside air through the suction pipe (to) and blows it against the top of the photographic material () passing through the ms chamber (5) to cool the photographic material. and adjust. As a result, the photographic material leaving the drying device (1) has suitable temperature and humidity, which can prevent water from condensing on the photographic material.

[Brief explanation of the drawing]

The drawing is a schematic side sectional view of an embodiment of the drying device of the present invention. (Main symbols in the drawing) (1): Drying device (2): Housing (3): Partition (4): Drying room + 5): 1i111 room (7): Photographic material (9): Bypass duct, αG = bypass duct Inlet tJ+): Top of housing a3: Outlet of bypass duct o3: Bottom of housing α4: Dehumidifier 0!9=Blower a@: Heating means a? ): The receiver is a plate aS bracket ■, (20, @: Circulation blower g3 = suction port

Claims (1)

[Claims] 1. Consisting of a housing and a device for circulating dry air through the housing, the housing has at least one circulation blower for dry air inside the housing, and one end of the housing has at least one circulation blower for dry air inside the housing. A drying device for photographic paper, photographic film, etc., characterized in that it has a bypass duct with a built-in dehumidifier and built-in heating means. 2. The drying device according to claim 1, wherein a circulation blower is disposed in the upper part of the housing, and the inlet of the bypass duct is disposed near the bottom of the housing, and the outlet is disposed near the top of the housing. Device. 3. The drying device according to claim 1 or 2, wherein the heating means is arranged above the dehumidifier in a vertical section of the pipe duct. 4. The drying device according to claim 1, 2 or 3, wherein means is provided below the dehumidifier to receive and remove water condensed from the air. 5. A blower for air passing through the bypass duct is disposed between the dehumidifier and the heating means in the bypass duct. drying equipment. 6. The drying device according to claim 11i4, 2, 3, 4, or 5, wherein the blower is placed at an appropriate position Km on a bracket provided near the top of the housing. 7. Claim 1, wherein the housing is divided into an adjacent drying chamber and an adjustment chamber by a vertical partition.
The drying device according to item 2, item 3, item 4, item 5, or item 6. 8. The drying device according to claim 7, wherein the - silkworm arranging device is provided with a circulation blower, and a suction port of the blower is opened to the outside of the housing.