EP0444500B1 - Outil de fermeture pour capuchons de scellage de fûts - Google Patents

Outil de fermeture pour capuchons de scellage de fûts Download PDF

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Publication number
EP0444500B1
EP0444500B1 EP91102313A EP91102313A EP0444500B1 EP 0444500 B1 EP0444500 B1 EP 0444500B1 EP 91102313 A EP91102313 A EP 91102313A EP 91102313 A EP91102313 A EP 91102313A EP 0444500 B1 EP0444500 B1 EP 0444500B1
Authority
EP
European Patent Office
Prior art keywords
actuation
levers
tool
arms
cone
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
EP91102313A
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German (de)
English (en)
Other versions
EP0444500A1 (fr
Inventor
Gerhard Feige
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.)
Feige Abfuelltechnik GmbH
Original Assignee
Feige Abfuelltechnik GmbH
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Filing date
Publication date
Application filed by Feige Abfuelltechnik GmbH filed Critical Feige Abfuelltechnik GmbH
Publication of EP0444500A1 publication Critical patent/EP0444500A1/fr
Application granted granted Critical
Publication of EP0444500B1 publication Critical patent/EP0444500B1/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67B—APPLYING CLOSURE MEMBERS TO BOTTLES JARS, OR SIMILAR CONTAINERS; OPENING CLOSED CONTAINERS
    • B67B3/00—Closing bottles, jars or similar containers by applying caps
    • B67B3/02—Closing bottles, jars or similar containers by applying caps by applying flanged caps, e.g. crown caps, and securing by deformation of flanges
    • B67B3/10—Capping heads for securing caps
    • B67B3/14—Capping heads for securing caps characterised by having movable elements, e.g. hinged fingers, for applying radial pressure to the flange of the cap

Definitions

  • the invention relates to a tool mentioned in the preamble of claim 1.
  • Barrels for example the usual 200-liter barrels, are mainly used to transport dangerous liquids that must be sealed with a high degree of security.
  • the standardized closure system of today's barrels therefore has, in addition to the screw closure, a sealing cap with its own seal, which grips over the closed bunghole and is secured below it by bending. Closing tools of the type mentioned at the beginning are used for this purpose.
  • rocker arms which are provided concentrically around the actuation axis and, with their working end, encompass the sealing cap.
  • the levers With a conical actuating surface actuated in the axial direction, the levers are actuated in such a way that the working ends are pressed together and, with appropriately shaped surface pieces, compress the sealing cap on all sides and thus clamp onto the bung hole of the barrel. After pulling back the conical operating surface the levers are spread again under spring force and release the sealing cap.
  • the levers are tiltably supported at their end facing away from the working end on an actuating plate standing transversely to the axis and are pressed together from the outside at the working end, which also serves as the actuating end, with a conical surface that widens in the actuating direction.
  • the working end and operating end of the levers essentially coincide.
  • this known construction has considerable disadvantages. Even with careful maintenance and especially lubrication, this construction tends to jam frequently. This tool is therefore less suitable for maintenance-free automatic operation, for example for filling highly dangerous or explosive liquids.
  • the actuation stroke is very short. High actuation forces must therefore be applied, which in the case of the known construction mentioned requires two large-area pneumatic cylinders operating in parallel. The short actuation stroke makes function monitoring difficult.
  • very large housing parts have to go along with the actuation stroke.
  • a closing tool which is provided in particular for closing milk bottles with film caps.
  • the levers are designed here with two arms, with the support points forming the tilting bearing point of the levers, each of which lies between the working end and the actuating end of the lever.
  • outer ring grooves are formed in the levers, which are mounted on an inwardly pointing movable housing flange.
  • the housing flange is movable relative to a fixed outer cone, which forms the conical actuating surface.
  • a disadvantage of this construction is, on the one hand, the difficult assembly of the levers, which have to be reduced in their circumferential spacing for insertion into the ring flange of the housing. This results in problems during assembly.
  • the necessary circumferential spacing of the levers also results in an indefinite spacing of the levers from one another. The levers can move during operation and jam together.
  • a crown cap sealer is known, in which the crown cap is deformed directly by an outer cone during its axial movement. It is driven by a double-acting pneumatic cylinder.
  • the object of the present invention is to create a tool of the type mentioned at the outset that works without jamming and is easy to assemble.
  • the levers are supported in a tilting manner in the central area and form the arm actuated outwards at one end and the working end working inwards at the other end.
  • the kinematic requirements for this construction are more favorable than for the known construction DE-B-11 12 420. In particular, any risk of pinching is avoided.
  • the cone angle can be kept very flat, so that there is a long actuation stroke. The actuation forces are therefore small, and there are good possibilities for monitoring the working cycle due to the long stroke.
  • Another advantage is that both the levers and the housing are fixed in the direction of actuation and the actuation stroke is only exerted by the cone and its actuators. The moving masses are therefore small.
  • the tool according to the invention can be constructed more simply and cost-effectively with a very high level of functional reliability.
  • the groove / flange engagement at the support point of the levers is kinematically reversed.
  • the groove is in the housing and the levers have flanges that protrude outwards and reach into the groove. These flanges form the radially outermost part of each lever on which the lever's tilt axis lies.
  • the levers viewed in the circumferential direction, can be mounted on one another without play without impairing the tilting movement of the levers. This allows a precisely defined storage of the levers, which ensures long-term complete freedom from jamming and a bracket that cannot be lost without additional securing means.
  • the split design of the housing also results in very simple assembly.
  • the tool shown in FIG. 1 has a housing with a cylinder wall 1 which is arranged concentrically with an actuation axis 12 and which is closed at one end by a transverse wall 2.
  • a ring 4 is attached with a parting line 3 and held detachably in this position by means not shown.
  • An annular groove 5 is formed in the inner wall at the parting line 3.
  • a number of levers 6 are arranged in the interior of the cylinder wall 1 concentrically and essentially parallel to the actuation axis 12.
  • the levers 6 have on their outer side an outwardly projecting flange 7 which, as shown in FIG. 1, is rounded to match the cross-sectional shape of the annular groove 5.
  • the levers are each mounted with their flange 7 in the annular groove.
  • the levers each extend from the position of the flange 7 in both directions to ends, of which the end facing away from the transverse wall 2 of the housing represents the working end 8 which the inside, as shown in FIG. 1, is designed in a known shape as a clamping tool, specifically adapted to the desired clamping shape of the sealing caps, not shown, to be closed with the tool.
  • the opposite end of the lever 6 is the actuating end 9, at which the levers are acted upon by force.
  • the levers at the actuating end 9 have the inward-facing cams 10 shown in FIG. 1 which slide on the outer actuating surface of a cone 11 which is driven to and fro in the actuating axis 12 which coincides with the axis of the cylinder wall 1.
  • a piston rod 13 of a piston 14, which is pneumatically driven in a cylinder 15, is used to drive the cone 11 in the actuation axis 12.
  • the cylinder 15 is, as shown in FIG. 1, attached to the transverse wall 2 of the housing in an axis extension and fastened there by means not shown, the piston rod 13 passing through the transverse wall 2 in a sliding manner.
  • the piston 14 is pneumatically actuated from above against a return spring 16.
  • the return spring 16 is omitted and the cylinder 15 is designed for pneumatic actuation of the piston on both sides.
  • Other drives for the piston rod 13 can also be provided, for example electromagnetic drives.
  • FIG. 1 shows two different operating positions inside the housing 1, 2 on the right and left of the actuation axis 12, namely on the right the unactuated position when the cone 11 is raised and on the left the actuation position when the cone 11 is pushed down.
  • the actuation end position is shown, in which the cone 11 has reached its lowest position and the working ends 8 of the levers 6 are radially compressed to the end position. The cone 11 is then pulled back into the position shown on the right side of the figure. The working ends 8 of the levers can diverge radially again.
  • the levers 6 make a radial movement at both ends. They must therefore have mutual play on all of their side surface parts which carry out a tilting movement, since they would jam when the tilting movement were to take place in a sector-shaped manner on division. However, if the levers had play in all the side surface parts, the levers could fall out of the housing 1, 2. There would be additional mounting measures, such as circlips or the like. required.
  • the levers advantageously have essentially the shape of their side surfaces shown in FIG. 4, viewed in the axial direction. The sector in which the lever 6 shown lies is shown in broken lines. The side faces are drawn in opposite to the dashed sector boundaries. Only the side surfaces 21 of the flange 7 extend exactly to the sector boundary. The levers therefore lie against one another with these side surfaces 21, but apart from that at a clearance of one another.
  • the levers are held captive without additional safeguards. However, they can only be inserted into the ring groove 5 together. Therefore, the annular groove can be made divisible by removing the ring 4 from the cylinder wall 1.
  • levers With their working end 8, which is formed on the inside in a suitably shaping manner, the levers should press a thin-walled sealing cap (not shown) radially from all sides onto the closure of a barrel. It should be avoided that pressure marks appear on the surface of the sealing cap in the joints between the levers. For this reason, the largest possible number of levers should be provided. At least 10 levers should therefore be arranged on the circumference. At least 15 levers are advantageously provided. Experiments with 18 levers have proven to be optimal.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Clamps And Clips (AREA)
  • Actuator (AREA)

Claims (6)

  1. Outil pour la fermeture de sûreté de fûts par des capuchons de scellement, muni de leviers basculants (6) disposés concentriquement et essentiellement orientés parallèlement à l'axe d'actionnement, ces leviers étant soumis au cours d'un mouvement axial relatif à une surface d'actionnement conique à une force telle que leurs extrémités de travail (8) se resserrent radialement contre une force de ressort qui tend à les écarter, caractérisé en ce que la surface d'actionnement est disposée sur un cône (11) s'effilant dans le sens d'actionnement (17) et coulissant à l'intérieur des extrémités d'actionnement (9) des leviers (6), lesquels s'appuyent au moyen de colerettes extérieures entre les extrémités d'actionnement (9) et les extrémités de travail (8) dans une rainure annulaire (5) d'un boîtier stationnaire (1, 4) entourant les leviers (6) et séparable en deux parties transversalement à l'axe (12) au niveau de la rainure annulaire (5).
  2. Outil selon la revendication 1, caractérisé en ce que les leviers (6) voisins n'entrent en contact qu'au niveau des colerettes (7) dans la rainure annulaire (5) (surfaces latérales 21) et sont écartés l'un de l'autre dans toutes les autres zones des surfaces latérales.
  3. Outil selon l'une des revendications précédentes, caractérisé en ce que le cone (11) est actionné par un vérin pneumatique (15) fixé au boîtier (2) dans le prolongement de l'axe.
  4. Outil selon la revendication 3, caractérisé en ce que le piston (14) du vérin pneumatique (15) peut être actionné dans les deux sens.
  5. Outil selon l'une des revendications précédentes caractérisé en ce qu'il est muni d'au moins 10 leviers (6).
  6. Outil selon la revendication 6, caractérisé en ce qu'il est muni d'au moins 15 leviers (6).
EP91102313A 1990-02-24 1991-02-19 Outil de fermeture pour capuchons de scellage de fûts Expired - Lifetime EP0444500B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4005875 1990-02-24
DE4005875 1990-02-24

Publications (2)

Publication Number Publication Date
EP0444500A1 EP0444500A1 (fr) 1991-09-04
EP0444500B1 true EP0444500B1 (fr) 1994-04-06

Family

ID=6400899

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91102313A Expired - Lifetime EP0444500B1 (fr) 1990-02-24 1991-02-19 Outil de fermeture pour capuchons de scellage de fûts

Country Status (2)

Country Link
EP (1) EP0444500B1 (fr)
DE (1) DE59101303D1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997003790A1 (fr) * 1995-07-14 1997-02-06 The West Company, Incorporated Procede et appareil d'application d'un obturateur en deux parties sur un flacon
US10807744B1 (en) 2018-11-14 2020-10-20 Specialty Equipment Fabrication Company Apparatus, systems and methods for manipulating a drum or other container
DE102022126330A1 (de) * 2022-10-11 2024-04-11 Krones Aktiengesellschaft Verschließerkopf für Verschließer

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE111240C (fr) *
US2749003A (en) * 1951-06-02 1956-06-05 Willy E Zimmermann Container closing device
CH295577A (de) * 1951-12-07 1953-12-31 Mueller Strobel Josef Vorrichtung zum Befestigen von Kronkappenverschlüssen auf Flaschen.
DE1782378A1 (de) * 1968-08-23 1971-08-12 Enzinger Union Werke Ag UEber einer zu verschliessenden Flasche vertikal bewegbarer Verschliessstempel zum Aufbringen von Kronkorken und dergleichen Verschluesse auf Flaschen

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Publication number Publication date
EP0444500A1 (fr) 1991-09-04
DE59101303D1 (de) 1994-05-11

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