JPH068940A - Drum can and manufacture thereof - Google Patents

Abstract

PURPOSE:To make it possible to perform washing the inside of the can easily and quickly by a method wherein the title drum can is equipped with a bottom plate, a top plate on which a flange type opening for attaching of closing lid is provided, and a body plate, and these parts are joined by welding, and at the same time, a closing lid is detacheably attached to the flange type opening. CONSTITUTION:A top plate 5 is formed by providing a port 2 for a content such as chemical agents, paints or oils, etc., and a flange type opening for attaching of closing lid 3 with a comparatively larger diameter, and the top plate 5 and a bottom plate 7 are joined by welding to both ends of a body plate 6 to make a desired drum can 1. Then, a sealing lid 4 is detacheably attached to the flange type opening 3 which is provided on the top plate 5 by a bolt 4a or V band, etc., to close the drum can 1. The diameter of the opening 3 is preferably made to be approximate 140mm/phi or higher, and an edge peak part 3a is formed at the lower peripheral edge of the opening 3 in order to make the welding easier. Also, an O ring 4c is placed between the sealing lid 4 and the opening 3 in order to improve the sealability.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention can prevent residual contents such as chemical agents, paints, adhesives, oils, synthetic resins, etc. from remaining and dirt and dust, and can clean the inside. The present invention relates to a drum can which can be easily performed and a manufacturing method thereof.

[0002]

2. Description of the Related Art Conventionally, this kind of drum can is mainly made of iron, but it is inexpensive and is often thrown away after being used once or several times. However, in recent years, the opportunities for containing high-grade chemical liquids have increased, and the use of durable and expensive stainless steel drum cans has increased. Therefore, since this stainless steel drum can is expensive, it must be washed and used many times. Such a drum can, for example, when connecting the top plate 13 provided with the content entrance / exit portion 12 having a relatively small diameter and the body plate 14 or connecting the main plate 15 and the body plate 14 to each other, for example, FIG. 6 and FIG. As shown in FIG. 7, the joint portions 16 are formed by winding-coupling them.

[0003]

However, since such a connecting portion 16 is a winding connection, the curved portion 13 of the top plate 13 and the base plate 15 is provided on the drum cavity 17 side of the connecting portion 16.
An annular first gap portion 18 exists between a and 15a and the inner surface of the body plate 14. Therefore, a narrow gap due to winding connection is likely to continue intermittently, and a slight second gap 19 is continuously generated at the winding ends of the top plate 13 and the body plate 14 and the ground plate 15 and the body plate 14, respectively. Since it is easy to carry out, when used again and again, the first and second gap portions 18 and 19 are likely to slightly retain the chemical liquid previously stored therein, even if they are carefully washed. Second gap 19
The previously stored chemical liquid etc. that has penetrated into the can hardly be washed, but penetrates deeply and remains.

Further, in the first gap portion 18, dirt, dust and the like that have entered from the inlet / outlet portion 12 are likely to remain. Therefore, even if an attempt is made to fill and weld the first gap portion 18 with an appropriate welding machine, the inlet / outlet portion 1
No. 2 has a relatively small diameter, and this welding machine is difficult to insert into the drum cavity 17. Therefore, this filling and welding work is troublesome. Even if this filling and welding work becomes possible, the filling and welding work is sufficiently stable. However, there was a drawback that the chemical solution stored in the previous time could hardly be washed through the narrow gap due to poor welding, etc., and it penetrated deeply and remained, impairing the hermeticity.

Further, since the inside can be washed only from the contents inlet / outlet portion 12 having a relatively small diameter, it takes time, and particularly when the contents have a high viscosity, the workability is remarkably lowered. there were.

[0006]

SUMMARY OF THE INVENTION A drum can and a method of manufacturing a drum can according to the present invention are intended to solve the above-mentioned problems. The drum can is sealed with a main plate and an entrance / exit of a content and has a relatively large diameter. A top plate provided with a lid-mounting flange type opening, and a body plate. The top plate and the base plate are integrally welded to the body plate, and the hermetically-sealing lid mounting flange-type opening is provided with a sealing lid. The method of manufacturing the drum can is characterized in that the top plate provided with the main plate and the entrance / exit of the contents and the flange-shaped opening for mounting the lid with a relatively large diameter is attached to the body plate. When integrally welding from the inner surface, the top plate is welded to the body plate by inserting a welding machine into the top plate from the flange-shaped opening for attaching the sealing lid, and the top plate is integrally welded to the body plate from the inner surface. After welding the body plate and the top plate, Characterized in that to attach the sealing lid detachably in a sealed lid mounting flange shaped opening of the top plate.

[0007]

1 to 5 are views showing a preferred embodiment of a drum can according to the present invention, FIG. 1 is an external perspective view, and FIG.
FIG. 3 is a partially enlarged sectional view showing an example in which a conventionally known bolt-type sealing lid is attached to a flange-type opening for mounting a sealing lid, and FIG. FIG. 5 is a partially-enlarged sectional view showing a mounted example, and FIG.

As shown in the drawings, the drum can 1 of the present invention is used for attaching a port 2 for the contents of chemical agents, paints, adhesives, oils, synthetic resins, etc. and a relatively large-diameter sealing lid. A flange type opening 3 is provided, and a sealing lid 4 is detachably attached to the opening 3 by a conventionally well-known bolt 4a or V band 4b. is doing.

The diameter of the sealing lid mounting flange type opening 3 is preferably approximately 140 mm / φ or more. In addition, an extension 3a having a required length is formed on the lower peripheral edge of the opening 3 to facilitate welding. Further, an O-ring 4c is interposed between the sealing lid 4 and the flange-shaped opening 3 for mounting the sealing lid in order to enhance the sealing performance.

Although the top plate 5 and the base plate 7 are integrally connected to the body plate 6 by welding as shown in FIG. 2, they may be of a winding connection type as shown in FIG. On the drum cavity 9 side of 8, the annular gap portion 10 is formed between the curved portions 5a and 7a of the top plate 5 and the base plate 7 and the inner surface 6a of the body plate 6. A nozzle of a welding machine (not shown) is inserted from the flange-shaped opening 3 for attaching the closed lid, and welding is continuously performed for filling and welding.

As described above, not only in the case shown in FIG. 2 but also in the case shown in FIG. 5, between the curved portions 5a and 7a of the top plate 5 and the base plate 7 and the inner surface 6a of the body plate 6, Since the bottom surface of the pot is formed smoothly and surely by the above welding, when the drum can 1 is washed, the contents do not remain, and neither the dirt nor dust that has entered from the entrance / exit 2 remains. Is. Moreover, after the welding work is completed, the drum can 1 having strength that is not deformed with respect to the internal pressure can be manufactured by sealing the sealing lid mounting flange type opening 3 with the sealing lid 4.

Next, a method for manufacturing the drum can 1 of the present invention will be described. First, the base plate 7 is integrally joined to the body plate 6 by welding from the inner surface by a nozzle of a welding machine (not shown). Thereafter, the top plate 5 provided with the flange-shaped opening 3 for mounting the sealing lid in advance is inserted into a welding machine (not shown) from the flange-type opening 3 for mounting the sealing lid with the sealing lid 4 removed. The drum 6 is integrally joined to the plate 6 from the inner surface by welding, the top plate 5 is welded to the body plate 6, and then the sealing lid 4 is attached to the flange-shaped opening 3 for attaching the sealing lid to manufacture the drum can 1.

As described above, the workability is improved by welding the top plate 5 using the flange-shaped opening 3 for attaching the sealing lid, and the top plate 5 and the base plate 7 are welded to the body plate 6. The connection by means of is stable, reliable, and beautifully finished, and the internal cleaning work can be performed easily and quickly in a short time.

[0014]

The drum can of the present invention comprises a top plate provided with a main plate and an entrance / exit for contents, and a flange-type opening for mounting a sealing lid having a relatively large diameter, and a body plate. Since the base plate and the three base plates are integrally welded to each other and the sealing lid is detachably attached to the sealing lid mounting flange type opening, the sealability is not impaired, and the contents are It has an effect that it is possible to surely prevent the residual accumulation and the residual accumulation of dirt and dust and to easily and quickly perform the internal cleaning work in a short time. Further, the method for manufacturing the drum can of the present invention, when integrally welding the top plate provided with the main plate and the entrance / exit of the contents and the flange-type opening for mounting the sealing lid having a relatively large diameter from the inner surface to the body plate. , A top plate is welded to the body plate by inserting a welding machine from a flange-shaped opening for attaching a sealing lid of the top plate, and the top plate is integrally joined to the body plate by welding from the inner surface, After welding with the top plate, the sealing lid is detachably attached to the flange-type opening for attaching the sealing lid of the top plate. There are various effects such as that it can be performed, the workability is extremely good, and stable, reliable, and clean finish can be achieved without causing welding defects.

[Brief description of drawings]

FIG. 1 is an external perspective view showing a preferred embodiment of a drum can according to the present invention.

FIG. 2 is a vertical sectional view of the same.

FIG. 3 is a partially enlarged cross-sectional view showing an example in which a bolt-type sealing lid is attached to a flange-type opening for attaching a sealing lid.

FIG. 4 is a partially enlarged cross-sectional view showing an example in which a V-band type sealing lid is attached to a sealing lid mounting flange type opening.

FIG. 5 is a partially cutaway enlarged cross-sectional view of a case where a base plate and a top plate are of a winding connection type.

FIG. 6 is an external perspective view showing an example of a conventional drum can.

7 is a vertical cross-sectional view of FIG.

[Explanation of symbols]

 1 Drum can 2 Content entrance / exit 3 Flanged opening for sealing lid 4 Sealing lid 5 Top plate 6 Body plate 7 Base plate 8 Coupling part 9 Cavity 10 Gap part

Claims (2)

[Claims] 1. A top plate provided with a main plate and an entrance / exit for contents and a flange-type opening for mounting a sealing lid having a relatively large diameter,
A drum can comprising a body plate, wherein the top plate and the base plate are integrally welded to the body plate, and a sealing lid is detachably attached to the sealing lid mounting flange type opening. 2. When the top plate provided with the main plate and the entrance / exit of the contents and the flange-type opening for mounting the sealing lid having a relatively large diameter is integrally welded to the body plate from the inner surface, the top plate for the body plate is welded. After the welding of the plate is welded from the flange-type opening for attaching the sealing lid of the top plate, the top plate is integrally joined to the body plate by welding from the inner surface, and after the body plate and the top plate are welded. A method for manufacturing a drum can, wherein a sealing lid is detachably attached to the sealing lid mounting flange type opening of the top plate.