EP0659497B1 - Vorrichtung zum Ausrichten von Fussringen von Gasflaschen - Google Patents

Vorrichtung zum Ausrichten von Fussringen von Gasflaschen Download PDF

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Publication number
EP0659497B1
EP0659497B1 EP94119224A EP94119224A EP0659497B1 EP 0659497 B1 EP0659497 B1 EP 0659497B1 EP 94119224 A EP94119224 A EP 94119224A EP 94119224 A EP94119224 A EP 94119224A EP 0659497 B1 EP0659497 B1 EP 0659497B1
Authority
EP
European Patent Office
Prior art keywords
tool
axis
fact
accordance
tool part
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP94119224A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0659497A1 (de
Inventor
Christian Hasenkopf
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from DE4400466A external-priority patent/DE4400466C2/de
Application filed by Individual filed Critical Individual
Priority to SI9430098T priority Critical patent/SI0659497T1/xx
Publication of EP0659497A1 publication Critical patent/EP0659497A1/de
Application granted granted Critical
Publication of EP0659497B1 publication Critical patent/EP0659497B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • B21D1/00—Straightening, restoring form or removing local distortions of sheet metal or specific articles made therefrom; Stretching sheet metal combined with rolling
    • B21D1/06—Removing local distortions
    • B21D1/08—Removing local distortions of hollow bodies made from sheet metal

Definitions

  • the invention relates to a device for aligning foot rings for gas cylinders.
  • Gas bottles which are made of steel and hold a gas under pressure, are used in particular in the commercial sector for a wide variety of purposes. Since such gas bottles have a domed bottom, they are provided with a foot ring which protrudes above the bottom, which enables the gas bottle in question to be set up. These foot rings are often damaged or deformed, for example, during transportation or when parking the gas bottles. If the foot ring is deformed, however, it is no longer possible to park the gas bottle in a safe place.
  • a device for aligning foot rings of gas bottles according to the preamble of claim 1 is known from EP-A-0546478.
  • the object of the invention is to provide a device with which the alignment of damaged or deformed foot rings of gas cylinders is possible with the required precision in a simple and rational manner.
  • the alignment of a foot ring takes place in one or more work steps such that in a first step the gas bottle with a damaged part of the foot ring is inserted into the opened tool, ie into the gap between the tool parts in the starting position is that the tool is then closed in a second step, so that the Foot ring is clamped at its damaged area between the tool parts, the outer tool surface resting against the outer surface of the foot ring and the inner tool surface against the inner surface of the foot ring, namely initially against a partial area of this inner surface that is spaced from the lower edge area of the foot ring located.
  • the at least one inner tool part is then moved in the direction of the device axis and thus also in the direction of the axis of the foot ring from an initial position into an end position, so that the inner tool surface in the axial direction on the inner surface of the foot ring slides and thereby aligns the damaged area of the foot ring over the entire axial length.
  • the tool parts are not only movable like jaws relative to each other for opening and closing the tool formed by the tool parts radially to the device axis, but at the same time actuating means are also provided to move the inner tool part in the direction of the tool axis between a starting position and To move end position. Only in this way can bent foot rings of gas cylinders be aligned or restored, in particular also with regard to the inwardly shaped edge provided for these foot rings.
  • the nose or the shaped surface which is provided on that side of the inner tool surface which leads during the lifting movement from the starting position into the end position in a radial plane including the device axis has a curvature which is equal to the curvature of the Inside of the lower edge area of the foot ring.
  • This convexly curved nose is then assigned a concavely curved shaped surface on the outer tool surface, so that the In the third working step, the shape of the lower, inwardly curved edge area of the foot ring is restored.
  • 1 is a gas bottle of conventional and known design, which is used to hold a gas under pressure and is provided on the underside, ie in the area of the curved bottom 2, with a foot ring 3, which is used to place the gas bottle 1 on a surface serves.
  • the essentially circular or hollow cylindrical foot ring 3 is in a known manner at its upper Edge connected to the gas bottle 1 by welding and forms on its underside an edge area 4, on which the foot ring 3 is formed or bent inwards with a certain radius.
  • the foot ring 3 when using and / or when parking and / or transporting a gas bottle 1, it may happen that the foot ring 3 is damaged at its lower edge, e.g. is bent radially inwards, as is indicated in FIG. 1 by the broken line 3 '. By bending the foot ring 3 in this way, it loses its function as a foot or stand element for the gas bottle 1, i.e. the latter can no longer or no longer be set up with the required security without the risk of tipping over.
  • FIGS. 2-4 show a device with which it is possible to align a bent foot ring 3 in such a way that it in turn has its original shape.
  • the device 5 consists essentially of a device frame 6 with an upper, horizontal plate-shaped table 7.
  • a circular opening 8 is provided, through which a tool holder 9 with an inner, jaw-like tool part 10 over the top of the Table 7 protrudes.
  • the tool holder 9 is essentially cup-shaped, with a bottom section 9 'which lies in a plane perpendicular to the axis V and with a circular-cylindrical edge 9''from which the tool part 10 is machined, in such a way that this edge 9 '' only protrudes upwards above the bottom 9 'where the tool part 10 is formed.
  • the tool part 10 accordingly has a ring segment-like shape, in the embodiment shown in such a way that the angular length of the tool part is 90 ° or less with respect to the axis V.
  • the tool carrier 9 is guided in a guide 11 which is provided on the underside of the table 7 and, in the embodiment shown, consists of a pipe section arranged coaxially with the axis V.
  • the tool part 10 On the side lying on the outside with respect to the axis V, the tool part 10 has a convex curvature, specifically in accordance with the cylinder surface of a circular cylinder enclosing the axis V with the same axis. Furthermore, the tool part 10 has a likewise cylindrical inner surface 13 facing the axis V, which is supported against a plate-like guide piece 14 fastened to the table 7.
  • the workpiece part 10 is further provided with a recess 15, the shape of which is shown in particular in FIGS. 3 and 4, i.e. the recess 15 has an inclined surface or conical surface 16 which is formed by the surface of an imaginary cone which is arranged coaxially with the axis V and tapers upwards.
  • the recess 15 is shaped or undercut so that in the upper region of this recess 15 a strip-like nose 17 protruding into it is formed, which is arranged on an imaginary annular surface which also concentrically surrounds the axis V and, on the one hand, in one to the nose 17 merges with the circular-cylindrical partial region of the outer surface 12 (tool surface 12 ') and in the region of the recess into an oblique or annular surface 18, which is also formed by the surface of an imaginary truncated cone which is arranged coaxially with the axis V.
  • the radius which the nose 17 has in the vertical section including the axis V according to FIG. 3 corresponds to that radius of curvature which the properly shaped edge region 4 has on its inner surface.
  • the tool carrier 9 is in the direction of the axis V by a predetermined stroke from the raised position shown in FIG. 3, in which the Nose 17 has a greater distance from the plane of the top of the table 7, movable into a lower stroke position in which the distance between the nose 17 and the plane of the top of the table 7 is approximately the material thickness of the material used for the foot ring 3 (sheet steel ) corresponds to or is slightly less than this material thickness.
  • the radius of curvature that the tool part 10 has on its outer surface 12 or on the partial region 12 ′ corresponds approximately to half the inner diameter of the foot ring 3.
  • an outer tool part 19 is slidably guided radially to the axis V, which lies opposite the inner tool part 10 radially to the axis V and forms a convexly curved tool surface 20 on its side facing the tool part 10, which surface is coaxial with the surface Axis V or circular cylinder arranged parallel to this axis corresponds to a radius which is approximately half the outer diameter of the foot ring 3.
  • the tool surface 20 is also convexly curved in a vertical sectional plane, which includes the axis V, as indicated at 21 in FIGS. 3 and 4.
  • the radius of curvature of the curvature 21 corresponds to the radius of curvature which the edge region 4 has on its outer surface in the proper state.
  • the tool parts 10 and 19 form a tool.
  • the tool part 19 can be moved from a first position, in which this tool part has a greater distance from the tool part 10, into a working position in which the tool surface 20 in the tool part 10 or the tool surface 12 'located there is directly adjacent .
  • a further tool part 19 ' is provided in the tool part 19 with respect to the axis V diametrically opposite on the table 7. This is firmly connected to the table 7, has the same shape as the tool part 19 and is facing the tool surface 20 of the axis V at a distance that is equal to or approximately equal to half the outer diameter of the foot ring 3.
  • the tool carrier 9 and, with this, the tool part 10 are moved into the lower stroke position by actuating the cylinder 22, with the tool part 19 which is still in contact with the force of the lifting cylinder 23 against the outer surface of the foot ring 3 through the tool surfaces 12 'and 20 the circular cylindrical shape of the foot ring 3 is also restored in the lower part of this foot ring and by the nose 17 and the curvature 21, which in the lower lifting position of the tool carrier 9 also against the inner surface (nose 17) or outer surface (curvature 21) of the foot ring 3 rest, the curved edge region 4 is restored in its shape.
  • the sloping surface 16 also presses the lower part of the foot ring 3 radially outward with respect to the axis of the gas bottle 1, but in particular also a possibly deformed or rolled up edge area 4 is rolled back into the original shape by rolling it in.
  • a bent foot ring 3 can be used in a single operation if the bent area 3 'only makes up a part of the circumference of this foot ring, or if the bent area of the foot ring 3 makes up a larger part of the circumference, in be aligned again in several successive work steps.
  • the distance that the tool surface 20 has from the axis V is approximately equal to half the outer diameter of the foot ring 3.
  • Figures 5 and 6 show a device 5a, which essentially differs from the device 6 only in that instead of a circular segment-like outer tool part 19, an axis V to an angular range of 360 o enclosing annular tool part 19a with the axis V also fully enclosing annular tool surface 20a is fixedly provided on the table 7, and that instead of a single inner tool part 10 several, ie a total of three inner tool parts 10a are provided in the special embodiment shown in Figures 5 and 6, which are distributed at uniform angular intervals around the axis V. and have on the radially outer side the tool surface 12 'with the recess 15 forming the nose 17.
  • the tool part 19a has a curvature 21a at the lower region of the tool surface 20a, which corresponds to the curvature 21, but is designed as a closed ring surface enclosing the axis V.
  • the inner tool parts 10a can each be moved radially to the axis V on a tool carrier 24, which can be moved up and down by the lifting cylinder 22 and guided in a guide 25 in the direction of the axis V, from a starting position in that the tool surface 12 'of each tool part 10a is at a greater distance from the tool surface 20a in a working position in which each tool part 10a with its tool surface 12 'pressed against the inner surface of a foot ring 3 to be aligned.
  • the guide 25 is a tube-like housing which is arranged with its axis coaxially with the axis V and with its upper region projecting above the top of the table 7 also forms the outer, annular tool part 19a .
  • the tool parts 10a are further designed such that they each engage with a section 27 behind the tool carrier 24, which also serves as a guide piece for the tool parts 10 in the radial direction.
  • the cylinders 26 are screwed into the housing or into the guide 25 with their cylinder housing in such a way that their axis is radial to the axis V.
  • the piston rods of the cylinders 26 engage vertical sections 28 of the respective tool part 19a, specifically on guides which, despite the arrangement of the cylinders 26 on the guide 25 or on the housing, enable the vertical stroke of the tool carrier 24 with the tool parts 19a.
  • these guides are elongated holes in the vertical sections 28.
  • the device 5a makes it possible to align a deformed or bent foot ring 3 over the entire circumference in one work step, this work step again comprising essentially three work steps, namely the insertion of the foot ring 3 into the tool, the moving of the tool parts 10a towards the tool part 19a and thereby aligning the respective foot ring 10 in the upper area, if this is necessary.
  • the tool parts 10a are then moved downwards from their upper position in the vertical direction, again with tool parts 10a still pressed against the inner surface of the foot ring 3, so that the foot ring 3 is over its the entire axial length is shaped back into the shape of a circular cylinder, the edge region 4 then being shaped or aligned again at the end of the vertical lifting movement by the lugs 17 and the curvature 21a.
  • the axial width of the tool surface 12 ' i.e. the width of this tool surface in the direction of the axis V is substantially smaller than the axial width of the tool surface 20 or 20a.
  • the axial width of the tool surface 20 or 20a is chosen to be approximately the same or slightly smaller than the axial length of the foot ring 3.
  • the described embodiments have in common that, in the upper stroke position of the tool parts 10 and 10a, the respective tool surface 12 'lies opposite in the upper part of the tool surface 20 and 20a.
  • the inner tool parts 10a are movable radially to the axis V by a stroke which is greater than the radial distance between the inner, free edge line 4 'of the edge region 4 and the outer surface of the foot ring 3, so that in the starting position, the tool surfaces 12 'of the tool parts 10a have a radial distance from the axis V which is smaller than the corresponding radial distance of the inner free edge 4', so that when the tool is open, the foot ring 3 in the between the tool parts 10a and 19a formed tool gap easily introduced and in particular can be easily removed from the opened tool even after alignment.
  • the deformed foot ring 3 may be pre-aligned in the device 5a, for example in a device 5 corresponding to the device Device in which, however, the curvature or the shape region 21 is not provided on the tool parts 19 and 19 '.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Professional, Industrial, Or Sporting Protective Garments (AREA)
  • Automatic Assembly (AREA)
  • Pistons, Piston Rings, And Cylinders (AREA)
  • Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
  • Sampling And Sample Adjustment (AREA)
  • Air Bags (AREA)
  • Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
  • Vehicle Body Suspensions (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Feeding Of Articles To Conveyors (AREA)
EP94119224A 1993-12-09 1994-12-06 Vorrichtung zum Ausrichten von Fussringen von Gasflaschen Expired - Lifetime EP0659497B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SI9430098T SI0659497T1 (en) 1993-12-09 1994-12-06 Device for debulging the edges of gas cylinders

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE4342095 1993-12-09
DE4342095 1993-12-09
DE4400466A DE4400466C2 (de) 1993-12-09 1994-01-11 Vorrichtung zum Ausrichten eines Fußringes einer Gasflasche
DE4400466 1994-01-11

Publications (2)

Publication Number Publication Date
EP0659497A1 EP0659497A1 (de) 1995-06-28
EP0659497B1 true EP0659497B1 (de) 1997-09-24

Family

ID=25931927

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94119224A Expired - Lifetime EP0659497B1 (de) 1993-12-09 1994-12-06 Vorrichtung zum Ausrichten von Fussringen von Gasflaschen

Country Status (10)

Country Link
EP (1) EP0659497B1 (es)
AT (1) ATE158522T1 (es)
CZ (1) CZ305094A3 (es)
DE (1) DE9403177U1 (es)
DK (1) DK0659497T3 (es)
ES (1) ES2107733T3 (es)
GR (1) GR3025356T3 (es)
HU (1) HU212736B (es)
PL (1) PL174817B1 (es)
SK (1) SK151194A3 (es)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2542646B1 (fr) * 1983-03-14 1985-07-12 Maxel Jacques Machine a reformer les futs
ATE86156T1 (de) * 1989-01-04 1993-03-15 Dtm Drucklufttechnik Maschinen Vorrichtung zum ausbeulen der fassraender von metallfaessern.
DE9105350U1 (de) * 1991-05-01 1991-07-25 Reiter, Adolf, Dipl.-Braum., 8952 Marktoberdorf Richtmaschine
IL100279A (en) * 1991-12-08 1994-05-30 Meir Kuzhik Apparatus and method for repairing containers

Also Published As

Publication number Publication date
HU212736B (en) 1996-10-28
ATE158522T1 (de) 1997-10-15
HUT68900A (en) 1995-08-28
DK0659497T3 (da) 1998-05-11
PL306156A1 (en) 1995-06-12
PL174817B1 (pl) 1998-09-30
ES2107733T3 (es) 1997-12-01
DE9403177U1 (de) 1994-06-23
SK151194A3 (en) 1995-07-11
GR3025356T3 (en) 1998-02-27
CZ305094A3 (en) 1995-06-14
EP0659497A1 (de) 1995-06-28
HU9403503D0 (en) 1995-02-28

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