JPH0320280Y2 - - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to drums.

Conventional drum cans are manufactured by wrapping the periphery of the bottom plate or the periphery of the bottom plate and top plate around the can body, so a seaming groove is formed on the inner periphery of the bottom plate or top plate. The following inconveniences occur.

That is, when a liquid material such as paint, ink, lubricating oil, etc. is put into the can, a portion of the liquid material enters into the seaming portion from the seaming groove. Even after all of the above liquid material has been removed from the can and the can is no longer used, some of the above liquid material remains inside the seam, and even if the inside of the can is washed, the above residue cannot be completely removed. If the can cannot be cleaned and is reused with new liquid in the cleaned can, the above residue will flow out from the seam and mix with the new liquid, which may affect the purity or the purity of the liquid. Reduce quality.

Further, when cleaning the interior of a used can by pouring a solvent into the interior, a portion of the solvent infiltrates into the seam portion through the seam groove, causing the same problem as the residue described above.

In particular, when used cans are incinerated and then cleaned with acid, some of the acid along with some of the burnt residue, ash, etc. will seep into the seam from the seam groove, and after acid cleaning, the acid will be neutralized with alkali. Even in the neutralizing process, the acid that has entered the seamed portion is not completely neutralized and tends to remain, resulting in rusting in the seamed portion. Additionally, if a sealant is applied to the seam, the sealant will burn off when the can is incinerated. If a highly permeable liquid is added during reuse, the liquid will leak from the seam.

In the present invention, a seaming part is formed at the other end of the connecting foot plate, which is joined so that one end overlaps the outer peripheral surface of the upright plate rising from the periphery of the end plate that covers the end surface of the can body. The object of the present invention is to provide a drum can that can eliminate the above-mentioned conventional drawbacks by welding the tip of the upright plate and the edge of the can body in abutted state.

An embodiment of the present invention will be described below based on the drawings. 1 is a can body of a drum, 2 is a bottom plate that covers the bottom side end surface of the can body 1, and a rising plate 3 rising from the periphery of the bottom plate; A reinforcing plate 5 is attached to the outer surface of the upright plate 4, and the tip of the reinforcing plate 5 is folded back to overlap the outer surface of the upright plate 3. Polymerize so that they line up at the edges,
The leg plate 4 and the reinforcing plate 5 form a seaming part 6, and the tip of the upright plate 3 and the lower edge of the can body 1 are welded 7 in a butted state. Reference numeral 8 denotes a top plate that covers the upper side end surface of the can body 1, and stands up from its periphery (it hangs down when viewed with the top plate 8 welded to the can body 1). A folded joint foot plate 10 is provided integrally with the outer surface of the upper plate 9 so as to overlap, and a reinforcing plate 11 is attached to the outer surface of the joint foot plate 10 so that the tip of the reinforcing plate 11 is aligned with the folded end of the joint foot plate 10. These joint plates 10 and reinforcing plates 11
A seaming portion 12 is formed by the above, and the tip of the upright plate 9 and the upper edge of the can body 1 are welded 13 in a butted state. 14 is a large stopper provided on the top plate 8, and 15 is a small stopper provided on the top plate 8.

Welding steps 7 and 13 in each of the above embodiments may be performed simultaneously or separately, or may be performed while the can body, bottom plate, and top plate are held stationary and the welding device is rotated. Conversely, the welding device may be held stationary and the can body, bottom plate, and top plate may be rotated while welding.

In the above embodiment, an example of a so-called closed drum can is shown in which the bottom plate and top plate are welded to the can body.
The present invention can also be applied to oven-type drums, in which case only the bottom plate needs to be welded to the can body in the same manner as in the above embodiment. In addition, the present invention can be used to create drum cans in which the periphery of the bottom plate is wrapped around the can body and metal is filled by welding along the wrapping groove created on the inside of the bottom plate. It can also be implemented as a drum can with a drum top plate whose top plate is welded to the inner surface of the can body.

Since the present invention is constructed as described above, even though it has a seaming part similar to a conventional drum can,
Since no sealing grooves are formed inside the can, the inside of the used can can be completely cleaned, and when reused, there will be no inconvenience caused by residue inside the sealing part unlike with conventional drum cans. It is possible to provide a drum can that can be safely reused as many times as needed without any problems, and in addition, the upright plate is supported by a foot plate formed integrally with it, and the foot plate is supported by a reinforcing plate superimposed on the outer surface of the drum. Because the drum is reinforced by this structure, sufficient strength can be maintained against the load of the contents placed inside the drum, and the butt part between the upright plate and the edge of the can body is protected from the outside of the can body. Since it can be easily checked, these welding processes can be simplified,
It has the advantage of being able to reduce the manufacturing cost of the drum.

[Brief explanation of the drawing]

Figure 1 is a sectional view of the drum according to the present invention, Figure 2 is a cross-sectional view of the drum can according to the present invention;
The figure is an enlarged sectional view of the main part. 1...Can body, 2...Bottom plate, 3...Rising plate, 4...
...Join plate, 5... Reinforcement plate, 6... Sealing part, 7...
Welding part, 8... Top plate, 9... Upright plate, 10... Joint foot plate, 11... Reinforcement plate, 12... Sealing part, 13...
...welded part, 16...polymerized board, 17...welded part.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A raised plate that rises from the periphery of the end plate that covers the end face of the can body, and a raised plate that is folded back from the tip of the raised plate so as to overlap with the outer surface of the raised upper plate. A reinforcing plate is placed on the outer surface of the connecting foot plate so that the tip of the reinforcing plate is aligned with the folded end of the connecting foot plate, and the connecting foot plate and the reinforcing plate are A drum can formed by forming a seaming part and welding the tip of the upright plate and the edge of the can body against each other. (2) The drum can according to claim 1, wherein the end plate is a bottom plate that covers the bottom end face of the can body. (3) The drum can according to claim 1, wherein the end plate is a top plate that covers the upper end surface of the can body. (4) The drum can according to claim 1, wherein the end plates are a bottom plate that covers the bottom side end surface of the can body and a top plate that covers the top side end surface of the can body.