WO1989004799A1 - Drum with sealed folded seam - Google Patents
Drum with sealed folded seam Download PDFInfo
- Publication number
- WO1989004799A1 WO1989004799A1 PCT/NL1988/000049 NL8800049W WO8904799A1 WO 1989004799 A1 WO1989004799 A1 WO 1989004799A1 NL 8800049 W NL8800049 W NL 8800049W WO 8904799 A1 WO8904799 A1 WO 8904799A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- filament
- drum
- curvature
- preliminary
- flange
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D7/00—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of metal
- B65D7/12—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of metal characterised by wall construction or by connections between walls
- B65D7/34—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of metal characterised by wall construction or by connections between walls with permanent connections between walls
- B65D7/36—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of metal characterised by wall construction or by connections between walls with permanent connections between walls formed by rolling, or by rolling and pressing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D51/00—Making hollow objects
- B21D51/16—Making hollow objects characterised by the use of the objects
- B21D51/38—Making inlet or outlet arrangements of cans, tins, baths, bottles, or other vessels; Making can ends; Making closures
- B21D51/44—Making closures, e.g. caps
- B21D51/46—Placing sealings or sealing material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D53/00—Sealing or packing elements; Sealings formed by liquid or plastics material
Definitions
- the invention relates to a drum comprising a steel body and steel end walls which are joined together by means of a folded seam which is provided with a seal in the core.
- the folded seam joint between body and end wall can consist of a flat, so-called double folded seam or a more or less rounded triple folded seam.
- the latter fol ⁇ ded seam is preferable.
- the object of the invention is then to produce a solution to this sealing problem.
- the seal comprises a filament made of a deformable plastic, which can adhere with its surface to the steel surface of the folded seam parts, and is chemically resistant as regards the contents of the drum.
- Chemically resistant is understood to mean an acceptable resistance and/or a material which does not breach any regulations concerning the packaging of foodstuffs.
- the filament which in fact has to form the seal, is chemically resistant as regards the contents of the drum.
- “Chemically resistant” can be understood to mean that the filament is completely inert in its behaviour rela ⁇ tive to the contents, but also that the material of the filament undergoes an extraction which remains well below the limit which is set for it when an effort is made to dissolve it in the material which can form the contents of the drum. It is also important for the filament to be made of a material which meets all regulations concerning the packaging of foodstuffs.
- the adhesion of the plastic filament to the steel surface of the folded seam parts is another essential condition.
- Heat is ne ⁇ cessary for optimum adhesion. It can arise during folding, but is fed in particularly after folding during heating to higher tempera- tures, for example during stoving of the coat of paint which is applied to the outside of the drum.
- the effect achieved by this adhesion is that, even if the folded seam is deformed due to damage to the drum, the seal remains in place even at the so difficult intersection of the lengthwise seam of the drum body with the fol- ded seams. It has also been found in falling tests that the good adhesion makes an essential contribution to the strength of the folded seam. If the drum is damaged, unfolding of the folded seam now occurs less quickly, which also helps the seal.
- the invention also comprises a process for the production of the drum, which is characterized in that the filament to be placed in the preliminary curvature is made of a length that is shorter than the peripheral length of the preliminary curvature, which gives the effect of the closed plastic sealing ring already des- cribed.
- This filament can be placed in the preliminary curvature after the end wall in the folding machine is placed on the drum body.
- the body with the end wall or cover placed thereon is then set in rotation; the preliminary curvature is provided if it has not already been carried out in an earlier operation, and the filament to be guided by suitable means into the preliminary curva ⁇ ture then remains in position therein as a result of the centri- fugal action.
- This is preferably carried out just before the edge of the body flange goes into the preliminary curvature, so that the opening of the preliminary curvature, which opening is facing said body flange, is closed immediately after introduction during the further folding operation.
- the filament can also be placed in the preliminary curvature before the end wall is placed on the body of the drum.
- the end wall is set in rotation, the preliminary curvature is provided, and during or after this operation the filament is guided into the pre- liminary curvature.
- a slight adhesion of the filament in the precurl can be obtained by heating the end wall but, it is preferable, after the application of the filament, to make the opening of the preliminary curvature of a size which is slightly smaller than the diameter of the filament.
- the filament can be placed by mechanical means, but the best solution with the most rapid effect is obtained if the filament is fed into the preliminary curvature by means of a stream of air which guides and transports the filament.
- the filament can be a solid filament, but can also have a cellular structure. Some rigidity is desirable, so that the fila ⁇ ment is not only easily guided to bridge the distance between the insertion means, such as the air jet nozzle, and the preliminary curvature, but also so that the filament can be held with some tension in the preliminary curvature, for the filament is in fact bent according to the curvature of the periphery.
- FIG. 1 shows a mechanical insertion device
- Fig. 2 shows a pneumatic insertion device
- Fig. 3 also shows a pneumatic insertion device.
- the filament 1 is pressed into the preliminary curvature 2, which has an opening which is slightly smaller than the diameter of the filament, from the end wall flange 3 by means of a rotary roller 4. This operation is preferably carried out before the end wall 3 is joined to the body.
- end wall flange 3 and body flange 5 have already been placed on each other, and the end wall flange is already provided with a preliminary curvature.
- Reference number 6 indicates a compressed air nozzle through which the filament 1 is conveyed and is, as it were, sprayed into the preliminary curvature 2 of the end wall flange, and takes up the position there indicated by solid lines. This can be carried out just before the folding rollers of the folding machine fold the curvature 2 further and finish the folded joint.
- the end wall is already provided with a preliminary curvature 7 and a filament 9 fed in by means of a compressed air nozzle 8 before the end wall is placed on the body of the drum.
- the opening of the preliminary curvature is reduced to a size which is slightly smaller than the diameter of the filament as indicated by 10.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rigid Containers With Two Or More Constituent Elements (AREA)
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BR888807807A BR8807807A (pt) | 1987-11-20 | 1988-11-11 | Tambor e processo de sua fabricacao |
AU27161/88A AU621325B2 (en) | 1987-11-20 | 1988-11-11 | Drum with sealed folded seam |
KR1019890701373A KR890701442A (ko) | 1987-11-20 | 1989-07-20 | 밀봉되어 감겨진 이음부를 가진 드럼 |
DK115590A DK115590D0 (da) | 1987-11-20 | 1990-05-09 | Tromle og fremgangsmaade til fremstilling af tromle |
FI902476A FI89344B (fi) | 1987-11-20 | 1990-05-18 | Tunna med taetande falssoem |
NO90902225A NO902225L (no) | 1987-11-20 | 1990-05-18 | Fat med tett fals. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL8702793 | 1987-11-20 | ||
NL8702793A NL8702793A (nl) | 1987-11-20 | 1987-11-20 | Vat met afgedichte felsnaad. |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1989004799A1 true WO1989004799A1 (en) | 1989-06-01 |
Family
ID=19850953
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/NL1988/000049 WO1989004799A1 (en) | 1987-11-20 | 1988-11-11 | Drum with sealed folded seam |
Country Status (19)
Country | Link |
---|---|
EP (1) | EP0317008B1 (sv) |
JP (1) | JPH03501011A (sv) |
KR (1) | KR890701442A (sv) |
CN (1) | CN1015247B (sv) |
AR (1) | AR244159A1 (sv) |
AT (1) | ATE61777T1 (sv) |
BR (1) | BR8807807A (sv) |
DE (1) | DE3862101D1 (sv) |
DK (1) | DK115590D0 (sv) |
ES (1) | ES2021424B3 (sv) |
FI (1) | FI89344B (sv) |
GR (1) | GR3001637T3 (sv) |
IN (1) | IN168908B (sv) |
NL (1) | NL8702793A (sv) |
PT (1) | PT89037B (sv) |
SG (1) | SG52592G (sv) |
TR (1) | TR24249A (sv) |
WO (1) | WO1989004799A1 (sv) |
ZA (1) | ZA888563B (sv) |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE412448C (de) * | 1923-10-26 | 1925-04-18 | Felten & Guilleaume Carlswerk | Verfahren zum Abdichten der Zwischenraeume, Naehte, Rillen usw., die bei aneinander-stossenden Gefaesswandungen aus nicht schweissbarem Material vorkommen |
DE1214956B (de) * | 1962-04-14 | 1966-04-21 | Lechler Bautenschutzchemie K G | Mittel zum Abdichten und Konservieren von Gasleitungen |
CH437020A (fr) * | 1964-06-03 | 1967-05-31 | Catalytic Gas Pack Limited | Dispositif d'extrémité d'un récipient et utilisation de ce dispositif |
FR2056925A1 (sv) * | 1969-08-01 | 1971-05-07 | Koninkl Emballage In | |
EP0065842A1 (en) * | 1981-05-14 | 1982-12-01 | Büdenbender, Bernd | Securing end covers to rotationally symmetric bodies |
EP0129310A1 (en) * | 1983-04-25 | 1984-12-27 | W.R. Grace & Co. | Sealing gaskets |
-
1987
- 1987-11-20 NL NL8702793A patent/NL8702793A/nl not_active Application Discontinuation
-
1988
- 1988-11-11 EP EP88202533A patent/EP0317008B1/en not_active Expired - Lifetime
- 1988-11-11 BR BR888807807A patent/BR8807807A/pt unknown
- 1988-11-11 ES ES88202533T patent/ES2021424B3/es not_active Expired - Lifetime
- 1988-11-11 JP JP63509478A patent/JPH03501011A/ja active Pending
- 1988-11-11 WO PCT/NL1988/000049 patent/WO1989004799A1/en active Application Filing
- 1988-11-11 AT AT88202533T patent/ATE61777T1/de not_active IP Right Cessation
- 1988-11-11 DE DE8888202533T patent/DE3862101D1/de not_active Expired - Fee Related
- 1988-11-16 TR TR88/0838A patent/TR24249A/xx unknown
- 1988-11-16 ZA ZA888563A patent/ZA888563B/xx unknown
- 1988-11-18 PT PT89037A patent/PT89037B/pt not_active IP Right Cessation
- 1988-11-18 AR AR88312501A patent/AR244159A1/es active
- 1988-11-18 IN IN958/CAL/88A patent/IN168908B/en unknown
- 1988-11-19 CN CN88107948A patent/CN1015247B/zh not_active Expired
-
1989
- 1989-07-20 KR KR1019890701373A patent/KR890701442A/ko not_active Application Discontinuation
-
1990
- 1990-05-09 DK DK115590A patent/DK115590D0/da not_active Application Discontinuation
- 1990-05-18 FI FI902476A patent/FI89344B/fi not_active Application Discontinuation
-
1991
- 1991-03-21 GR GR91400226T patent/GR3001637T3/el unknown
-
1992
- 1992-05-11 SG SG52592A patent/SG52592G/en unknown
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE412448C (de) * | 1923-10-26 | 1925-04-18 | Felten & Guilleaume Carlswerk | Verfahren zum Abdichten der Zwischenraeume, Naehte, Rillen usw., die bei aneinander-stossenden Gefaesswandungen aus nicht schweissbarem Material vorkommen |
DE1214956B (de) * | 1962-04-14 | 1966-04-21 | Lechler Bautenschutzchemie K G | Mittel zum Abdichten und Konservieren von Gasleitungen |
CH437020A (fr) * | 1964-06-03 | 1967-05-31 | Catalytic Gas Pack Limited | Dispositif d'extrémité d'un récipient et utilisation de ce dispositif |
FR2056925A1 (sv) * | 1969-08-01 | 1971-05-07 | Koninkl Emballage In | |
EP0065842A1 (en) * | 1981-05-14 | 1982-12-01 | Büdenbender, Bernd | Securing end covers to rotationally symmetric bodies |
EP0129310A1 (en) * | 1983-04-25 | 1984-12-27 | W.R. Grace & Co. | Sealing gaskets |
Also Published As
Publication number | Publication date |
---|---|
NL8702793A (nl) | 1989-06-16 |
TR24249A (tr) | 1991-07-04 |
DK115590A (da) | 1990-05-09 |
IN168908B (sv) | 1991-07-06 |
JPH03501011A (ja) | 1991-03-07 |
FI89344B (fi) | 1993-06-15 |
CN1015247B (zh) | 1992-01-01 |
BR8807807A (pt) | 1990-09-25 |
ATE61777T1 (de) | 1991-04-15 |
CN1034176A (zh) | 1989-07-26 |
ZA888563B (en) | 1989-08-30 |
GR3001637T3 (en) | 1992-11-23 |
EP0317008A1 (en) | 1989-05-24 |
EP0317008B1 (en) | 1991-03-20 |
KR890701442A (ko) | 1989-12-20 |
DK115590D0 (da) | 1990-05-09 |
PT89037B (pt) | 1993-12-31 |
AR244159A1 (es) | 1993-10-29 |
ES2021424B3 (es) | 1991-11-01 |
DE3862101D1 (de) | 1991-04-25 |
FI902476A0 (fi) | 1990-05-18 |
SG52592G (en) | 1992-09-04 |
PT89037A (pt) | 1989-09-14 |
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