JPH078927A - Ultrasonic washing device for shutter member - Google Patents

Abstract

PURPOSE:To uniformly and certainly apply ultrasonic treatment to a large quantity of shutter members. CONSTITUTION:The ultrasonic washing device 1 for a shutter member such as a container for a recording medium subjected to punching processing and formed so as to be bent into an almost horizontal U-shape, is provided with a washing tank 3, a plurality of the ultrasonic vibrators 4 arranged on the bottom surface of the washing tank 3 and the shutter member receiving container arranged to the upper part within the area becoming shortest in peripheral length of the figure surrounding the arranged ultrasonic vibrators 4.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ultrasonic cleaning device for a shutter member, and more particularly to a shutter made of stainless steel such as a recording medium container punched and bent into a substantially U-shape. The present invention relates to an ultrasonic cleaning device for a member.

[0002]

2. Description of the Related Art Generally, a shutter member is attached to a hard case housing such as a recording medium container, and the shutter member opens and closes a head insertion / removal opening of the case. Such a shutter member is mainly made of stainless steel, is bent in a substantially U-shape, and is slidably disposed across both surfaces of the recording medium container. A so-called window is formed on the shutter member, and the device-side head is inserted when the window overlaps with the head insertion / removal opening. In such a method of manufacturing a shutter member made of stainless steel, a metal plate is punched into a predetermined shape and then bent into a substantially U-shape.

By the way, in the above-mentioned stainless steel shutter member, working oil is used at the time of punching, and this working oil may cause trouble if it is not completely removed when it is incorporated into a floppy disk. Therefore,
The shutter member may be ultrasonically cleaned to remove the processing oil.

[0004]

However, in the conventional ultrasonic cleaning apparatus for the shutter member, since it is necessary to perform a large amount of cleaning processing on the shutter member at a time, the ultrasonic vibrator or the like should be placed at a normal position. However, the oil and the like cannot be sufficiently washed, and the degree of washing may vary depending on the location of the washing tank, which may deteriorate the yield. Therefore, an object of the present invention is to provide an ultrasonic cleaning apparatus for a shutter member, which can uniformly and surely ultrasonically process a large amount of shutter members.

[0005]

SUMMARY OF THE INVENTION The present invention relates to an ultrasonic cleaning apparatus for a shutter member such as a recording medium container which is punched and bent into a substantially U-shape, and a cleaning tank and a bottom surface of the cleaning tank. A plurality of ultrasonic transducers arranged in a row, and a container for the shutter member arranged above in a region of a figure surrounding the arrayed ultrasonic transducers and having a shape with the shortest perimeter. The above object is achieved by providing an ultrasonic cleaning device for a shutter member.

[0006]

The punched shutter member is ultrasonically cleaned after a bending step in which processing oil or the like is attached. In this case, the container in which a large amount of shutter members are housed is located in the upper region facing the ultrasonic transducer and within the generation area thereof, and is uniformly subjected to vibration by the ultrasonic transducer. Therefore, all of the large amount of shutter members accommodated are substantially uniformly vibrated, and the cleaning with the cleaning liquid is efficiently performed.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of an ultrasonic cleaning apparatus for a shutter member according to the present invention will be described below with reference to the accompanying drawings. still,
FIG. 1 is a plan view of an ultrasonic cleaning device for a shutter member of this embodiment. 2 (A) and 2 (B) are a front view and a side view of a shutter member storage basket used in the ultrasonic cleaning device for a shutter member of FIG. FIG. 3 is a plan view of an ultrasonic cleaning device for shutter members according to another embodiment. FIG. 4 is a plan view of an ultrasonic cleaning device for a shutter member according to a comparative example.

The ultrasonic cleaning device 1 for a shutter member of this embodiment is an ultrasonic cleaning device for a shutter member such as a recording medium container punched and bent into a substantially U-shape. The ultrasonic cleaning device 1 for a shutter member includes a cleaning tank 3, a plurality of ultrasonic vibrators 4, 4, ... Arranged on the bottom surface 3A of the cleaning tank 3, and an array ultrasonic vibrator 4,
Figure A that surrounds 4 ... and has the shortest perimeter
And a storage container 5 for the shutter member 2 which is arranged above in the area.

To further explain the ultrasonic cleaning apparatus for the shutter member of the present embodiment, the shutter member 2 is a shutter member such as a commonly used floppy disk, which is punched and bent into a substantially U-shape. It is a stainless steel shutter member that is continuously supplied. Processing oil is generally attached to the shutter member 2 as described above, and a cleaning process is required. Therefore, the ultrasonic cleaning device 1 for the shutter member is in the process of removing the processing oil.

Further, by using the following processing oil for the shutter member 2, it is possible to use the below-mentioned alkaline aqueous solution as the cleaning liquid for the ultrasonic cleaning device 1 for the shutter member described above, and the removal thereof can be performed with certainty. It can be done efficiently. That is, as the processing oil, an oil containing a dicarboxylic acid ester having an aliphatic hydrocarbon as a main chain in a mineral oil is desirable. For example, the mineral oil is a C _{10 to} C ₁₈ branched hydrocarbon, a straight chain hydrocarbon, a terpene hydrocarbon such as a diterpene, and the like, and when used, these can be used alone or as a mixture. Examples of the dicarboxylic acid ester include diisopropyl succinate, diisopropyl glutarate, diisopropyl adipate and the like, and when used, these can be used alone or as a mixture.

The mixing ratio of the mineral oil and the dicarboxylic acid ester is preferably 0.1 to 15 parts by weight of the dicarboxylic acid ester with respect to 100 parts by weight of the mineral oil.
It is more preferably 0.5 to 10 parts by weight. If the mixing ratio is less than 0.1 parts by weight, the cleaning effect and the like cannot reach the initial purpose, and if it exceeds 15 parts by weight, the effect is not particularly improved, which is not preferable. In addition to the above mixture, it is preferable to further add a polyoxyether, and the addition amount when the polyoxyether is added is
With respect to 1 part by weight of dicarboxylic acid ester, 100 to 0.
It is preferably 1 part by weight, particularly preferably 10 to 0.1 part by weight. Such a processing oil is easily removed by a water-soluble cleaning liquid, and an organic solvent of the environmental pollution type which has been used for cleaning the processing oil, such as 1,1
-It is not necessary to use trichloroethane or carbon tetrachloride as a cleaning liquid. Therefore, the use as the above-mentioned processing oil, together with the cleaning effect of the ultrasonic cleaning apparatus 1 for a shutter member of the present invention, can sufficiently clean the shutter member 2 without causing environmental pollution.

A processing oil or detergent may be prepared by adding an oil composition prepared by mixing the processing oil having the above composition with an additive mainly composed of mineral oil and an anticorrosive agent. A known cutting oil can be used as the above oil composition without particular limitation, and specifically,
Commercially available products such as "Airo Brooch 11" (trade name, manufactured by Castrol) and "# 6100" (trade name, manufactured by Nippon Machine Oil Co., Ltd.) can be preferably used. In this case, the blending amount of the processing oil with respect to the oil composition is preferably 5 to 100 parts by weight, and more preferably 10 to 50 parts by weight with respect to 100 parts by weight of the oil composition. If it is less than 5 parts by weight, the cleaning effect and the like cannot reach the initial purpose, and if it exceeds 100 parts by weight, the effect is not particularly improved, which is not preferable. Even with such a composition oil, the same cleaning effect as described above is exhibited.

As shown in FIG. 1, the ultrasonic cleaning device 1 for a shutter member comprises a cleaning tank 3 and a plurality of circular ultrasonic vibrators 4, 4, ... Arranged on the bottom surface 3A of the cleaning tank 3. The cleaning tank 3 is filled with the above-mentioned alkaline cleaning liquid having a pH of 12 or more, and above the array ultrasonic transducers 4, 4 ...
A storage basket 5 that fits within the area of a figure A (a substantially rectangular shape in FIG. 1) that surrounds the vibrator is provided. The figure A is a figure that surrounds all the ultrasonic transducers 4, 4, ... And has the shortest perimeter. That is, the storage basket 5
Is formed so as to be completely immersed in the cleaning liquid and to fit above the region of the virtual figure A. Further, in the storage basket 5, support rails 6 are arranged side by side at regular intervals via mounting metal fittings 7 and 8 at both ends,
The shutter member 2 is erected on the support rail 6 via a U-shaped space.

In the ultrasonic cleaning apparatus 1 for a shutter member having the above-described structure, the shutter member 2 punched out from the conveyor or the like in the preceding stage is continuously inserted into the support rail 6 of the storage basket 5 to stand inside the basket 5. Supported. For this reason, a large amount of shutter members 2 are stored in the basket 5 in an upright state, and immersed in the cleaning liquid in the cleaning tank 3. In this case, the storage basket 5 is the ultrasonic transducer 4,
.., which is located above and in the area where the ultrasonic wave is generated, uniformly receives vibrations from the ultrasonic transducers 4, 4. For this reason, all of the large amount of shutter members 2 accommodated are substantially uniformly vibrated, and the cleaning with the cleaning liquid is efficiently performed. Further, since the shutter member 2 receives the generated vibration of the ultrasonic vibrator 4 as effectively as possible, the processing is economical.

Next, another second embodiment will be described with reference to FIG. FIG. 3 is a plan view of the ultrasonic cleaning device for a shutter member according to the second embodiment. The ultrasonic cleaning device 10 for a shutter member according to the present embodiment has substantially the same configuration as that of the embodiment shown in FIG. 1, and the same members as those in the embodiment shown in FIG. Although detailed description is omitted, the difference from the embodiment of FIG. 1 is that the figure A surrounding the ultrasonic transducer 4 encloses all the ultrasonic transducers 4, 4 ... Although the shape is such that the length is the shortest, the storage basket 5
It completely fits within the area of the figure A, and there is a margin in the arrangement of the ultrasonic transducer 4. Even with such a configuration, the same operational effect as that of the embodiment of FIG. 1 is achieved, but since the ultrasonic transducer is additionally used, the processing cost per shutter member 2 is slightly increased. From the viewpoint of processing cost, it is desirable that the area occupied by the storage basket 5 is 70 or more when the area of the figure A surrounding the ultrasonic transducer is 100.

FIG. 4 is a plan view of an ultrasonic cleaning device for a shutter member according to a comparative example. The ultrasonic cleaning device for a shutter member 20 of the comparative example has substantially the same structure as that of the embodiment shown in FIG. 1, and the same members as those in the embodiment shown in FIG. Although detailed description thereof will be omitted, the difference from the embodiment of FIG. 1 is that the figure A surrounding the ultrasonic transducer 4 encloses all the ultrasonic transducers 4, 4, ... Is the shortest figure, but its storage basket 5
Is out of the area of the graphic A. In such a structure, the shutter member 2 is not uniformly and reliably washed. Further, it is impossible to process a large amount of shutter members 2.

Table 1 shows the results of examining the wetting index after rinsing and drying with respect to the cleaning effect and the cleaning efficiency using the first and second apparatuses of the above-mentioned embodiment. The apparatus of the comparative example is also shown.

[0018]

[Table 1]

[0019]

According to the ultrasonic cleaning apparatus for a shutter member according to the present invention, a large amount of shutter members can be ultrasonically treated uniformly and surely.

[Brief description of drawings]

FIG. 1 is a plan view of an ultrasonic cleaning device for a shutter member of the present embodiment.

2A and 2B are a front view and a side view of a storage basket used in the ultrasonic cleaning apparatus for the shutter member of FIG.

FIG. 3 is a plan view of an ultrasonic cleaning device for a shutter member according to a second embodiment.

FIG. 4 is a plan view of an ultrasonic cleaning device for a shutter member according to a comparative example.

[Explanation of symbols]

1 and 10 Ultrasonic cleaning device for shutter member according to example 2 Shutter member 3 Cleaning tank 4 Ultrasonic vibrator 5 Storage basket 6 Support rail 20 Ultrasonic cleaning device for shutter member according to comparative example

Claims (3)

[Claims] 1. An ultrasonic cleaning apparatus for a shutter member, such as a recording medium container, which is punched and bent into a substantially U-shape. The cleaning tank includes a plurality of ultrasonic waves arranged on the bottom surface of the cleaning tank. Ultrasonic cleaning of a shutter member, comprising: a vibrator; and a container for the shutter member, which is arranged above a region surrounding the array ultrasonic oscillator and having a shape with a shortest circumference. apparatus. 2. The ultrasonic cleaning apparatus for a shutter member according to claim 1, wherein said storage container is provided with a support rail which vertically extends said shutter member by inserting said shutter member between its U-shapes. 3. The processing oil used for the punching is a composition comprising a mineral oil containing an oily dicarboxylic acid ester-containing dicarboxylic acid ester, and the cleaning liquid in the cleaning tank is a water-soluble cleaning liquid. Claim 1 characterized by the above.
A transfer device for the shutter member described.