EP0486464A1 - Dispositif pour former des corps à stabilité dimensionnelle en forme de balle en matière à fils fins - Google Patents

Dispositif pour former des corps à stabilité dimensionnelle en forme de balle en matière à fils fins Download PDF

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Publication number
EP0486464A1
EP0486464A1 EP91890273A EP91890273A EP0486464A1 EP 0486464 A1 EP0486464 A1 EP 0486464A1 EP 91890273 A EP91890273 A EP 91890273A EP 91890273 A EP91890273 A EP 91890273A EP 0486464 A1 EP0486464 A1 EP 0486464A1
Authority
EP
European Patent Office
Prior art keywords
cutting
clamping
guiding
sleeve
cutting device
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.)
Withdrawn
Application number
EP91890273A
Other languages
German (de)
English (en)
Inventor
Hannes Schrenk
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
Application filed by Individual filed Critical Individual
Publication of EP0486464A1 publication Critical patent/EP0486464A1/fr
Withdrawn legal-status Critical Current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
    • B21D51/00—Making hollow objects
    • B21D51/02—Making hollow objects characterised by the structure of the objects
    • B21D51/08—Making hollow objects characterised by the structure of the objects ball-shaped objects

Definitions

  • the invention relates to a device for forming dimensionally stable, bale-like shaped bodies made of thin-fiber metal, e.g. Aluminum, or stretched metal foil, e.g. Aluminum foil in which the thin-fibrous or stretched metal material to be formed can be fed to a cutting and pressing device in bundles.
  • thin-fiber metal e.g. Aluminum
  • stretched metal foil e.g. Aluminum foil in which the thin-fibrous or stretched metal material to be formed can be fed to a cutting and pressing device in bundles.
  • the invention has for its object to provide a device of the type mentioned, with which fillers can be produced which on the one hand only have a low liquid displacement and on the other hand have a large volume and are also dimensionally stable.
  • this object is achieved in that a guiding and clamping device is connected upstream of the cutting device, the guiding and clamping device, the cutting device and the pressing device being mounted so as to be displaceable relative to one another in the feed direction of the bundled metal goods.
  • a particularly effective device is created in such a way that, on the one hand, the feed and, on the other hand, the pressing pressure can be adjusted accordingly.
  • the guiding and clamping device and the pressing device can be arranged at a fixed mutual distance from one another and the cutting device between the guiding and clamping device on the one hand and the pressing device on the other hand can be pushed back and forth. It is thereby achieved that both the feed pressure and the pressing pressure are controlled by merely adjusting the displacement path of the cutting device. So that the bundled strand is prevented from falling out when the metal material is fed to the cutting device and, in addition, pressing can be achieved directly by the movement of the cutting device, a centering funnel can be attached to the cutting device at the inlet of the metal material and a pressing sleeve on the opposite side for the engagement of the pressing die Press device may be provided.
  • the cutting device can be formed by at least one knife which can be moved transversely to the direction of advance of the metal material, preferably two knives which can be moved in opposite directions, the cutting edges of which are formed by the edges of continuous bores.
  • the cut product is thus conveyed through the knife, and if the pressed product does not fall out automatically by pushing in the next product to be pressed, the piece already formed is ejected.
  • a centering funnel and a press sleeve can be provided for each bore, which are arranged in a fixed manner on the guide of the movable knives on the cutting device, as a result of which the centering funnel, through the movement with the cutting device, enables the metal material held in the clamping device to be inserted precisely.
  • a mold indentation can be provided at the end of the cutting process of the press sleeve, the inner shape of which corresponds to part of the outer shape of the molded body to be produced.
  • the front knife thus forms part of the press mold, namely the rear end, the side parts of the press mold being formed by the press sleeve, in which the press die then engages.
  • the guiding and clamping device can have a, preferably funnel-shaped, guide sleeve, in the interior of which preferably inactivatable clamping members are provided.
  • the clamping device serves to prevent the bundled metal goods from being pushed back by the guide device when the cutting device is moved towards the guide and clamping device, which also has the effect that, as already mentioned, the metal strand entering through the movement of the cutting device is, for example, in the press sleeve ejects remaining moldings.
  • the clamping members can be formed by clamping punches that can be pushed into the clear width of the guide sleeve. In this case, all clamping punches would be coupled to one another for simultaneous movement, with the result that, in the case of knives which have a large number of bores next to one another, the same conditions are achieved in all knives.
  • ejection recesses can be provided on the underside of the end of the press sleeves facing away from the knives, as a result of which, on the whole, the molded articles already fall out of the press sleeve on their own.
  • a guiding and clamping device 2 and a pressing device 3 are arranged on a frame 1 in a stationary manner. Between the guiding and clamping device on the one hand and the pressing device on the other hand, a cutting device 4 is displaceable on guides 6 running in the direction of advance of the material 5 to be treated. 7 with a hydraulic drive cylinder for the displacement of the cutting device 4 is designated.
  • the cutting device 4 consists of two oppositely driven knives 8, 9, the cutting edges of which are formed by the edges of through bores 12, 13 inserts 10, 11.
  • a centering funnel 14, which is stationary with respect to the reciprocating knife 9, is connected upstream of the knife lying at the front in the feed direction of the material 5 to be treated. Downstream of the knife 8 in the feed direction is a press sleeve 15, which is also stationary with respect to the reciprocating knife 8.
  • the two oppositely driven knives 8, 9 are guided against one another by means of guide members 16, 17 and 18, 19, respectively.
  • the knife drive for the knife 9 lying at the front in the feed direction of the material 5 is indicated at 20 in FIG. 3.
  • An analog drive is provided for the knife 8 located at the rear in the feed direction.
  • the guiding and clamping device 2 is formed by a guide sleeve 21, on the inside of which inactivatable clamping members 22 are provided, which in the exemplary embodiment according to FIG. 1 are formed by clamping punches 24 which can be advanced by means of a hydraulic cylinder 23.
  • the press device 3 is formed by a press ram 25 which is fixedly connected to the frame 1 and which can be inserted into the press sleeve 15 with a precise fit.
  • the knife 9 lying at the front in the direction of advance of the material 5 to be treated has on its rear side an indentation 26 corresponding to the outer shape of the molded body to be produced, which is arranged in such a way that it comes to lie flush with the pressing sleeve 15 and the pressing die 25 due to the cutting movement .
  • the press die 25 in turn also has a mold indentation 27 which also corresponds to the outer shape of the compact to be produced.
  • a recess 28 is provided on the back, with which the ejection of the finished compact is facilitated.
  • the press rams 24 are connected to one another via a common actuating rod 29.
  • the guiding and clamping device 2 are also preceded by guiding members 30, 31 with which the material strand 5 that is brought in is pre-bundled accordingly.
  • the material 5 to be molded which in the present case comes from a machine for stretching aluminum foil, is pre-bundled by the guide members 30, 31 and introduced in this form into the guide cylinder of the guide and clamping device 2, to the extent that the front end of the crop strand extends to the rear end of the compression sleeve 15.
  • the cutting device 4 is in the position shown in FIG. 1, with the centering funnel 14 resting on the guide sleeve 1 of the guide and clamping device.
  • the position of the two knives 8, 9 is shown in Fig. 3a. Now the two knives 8, 9 are displaced relative to one another, so that the crop strand is cut off by the cutting inserts 10, 11 (see FIG. 3b).
  • the parts are in the position shown in Fig. 3c.
  • the mold recess 26 on the back of the front knife 9 in the feed direction is aligned with respect to the press sleeve 15 and the press ram 25.
  • the cutting device 4 is now moved by means of the hydraulic cylinder 7 to the press ram 25, which engages with it arrives with the press sleeve 15 and the material located in the press sleeve 15 clumps together.
  • the clamping device 22 is now activated in that the clamping plunger 24 engages in the guide sleeve 21 by means of the hydraulic cylinder via the common rod 29 and thus secures the strand of material to be formed against displacement in the guiding and clamping device.
  • the knives are moved again by means of the adjusting devices 20 into the position shown in FIG. 3a, so that a free passage between the centering funnel 14, the bores 12, 13 and the press sleeve 15 is made possible.
  • the cutting device is then pushed back into the position shown in FIG. 4 by means of the hydraulic cylinder 7, whereby the material to be molded is automatically introduced into the press sleeve.
  • the starting position shown in FIG. 3a is then reached again and the program sequence proceeds as described above.
  • the already formed material is ejected from the press sleeve, so that special ejection elements are unnecessary.
  • FIG. 4 differs from that shown in FIG. 1 in that that in this embodiment the cutting device 4 is arranged in a fixed manner and the guiding and clamping device 2 and the pressing device 3 can be displaced in relation to the cutting device 4 in the feed direction of the material 5 to be shaped.
  • the same parts as in FIG. 1 are provided with the same reference numerals in FIG. 4.
  • the change consists in the fact that the clamping device of the guiding and clamping device 2 is formed within the guide sleeve 21 by resilient tongues 32, which also act as barbs against pushing back of the material 5 to be molded.
  • the cutting device 4 is arranged fixed on the frame 1, whereas on the guides 6 the guiding and clamping device can be moved by means of a hydraulic cylinder drive 33 and the pressing device 3 can be moved by means of a hydraulic cylinder drive 34.
  • the actual operating sequence is essentially analogous to that described for the exemplary embodiment according to FIGS. 1 to 3. It only changes that for guiding the material 5 to be cut, the guiding and clamping device 2 is pushed towards the cutting device 4 via the hydraulic cylinder 33 until the guide sleeve 21 comes into engagement with the centering funnel 14 of the cutting device. Then the material to be molded is cut, whereupon the press ram 25 of the press device 3 is pressed into the press sleeve 15 by means of the hydraulic cylinder drive 34 and the shaped body is thus produced. After the pressing process has ended, the guiding and clamping device 2 is then withdrawn before the knives 8, 9 are opened, the material to be treated sliding along the resilient tongues and locking only being achieved when the guiding and clamping device 2 is advanced.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shearing Machines (AREA)
  • Basic Packing Technique (AREA)
EP91890273A 1990-11-13 1991-11-12 Dispositif pour former des corps à stabilité dimensionnelle en forme de balle en matière à fils fins Withdrawn EP0486464A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT228890A AT402166B (de) 1990-11-13 1990-11-13 Vorrichtung zum formen formbeständiger ballenartiger formkörper aus dünnfasrigem metall
AT2288/90 1990-11-13

Publications (1)

Publication Number Publication Date
EP0486464A1 true EP0486464A1 (fr) 1992-05-20

Family

ID=3531569

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91890273A Withdrawn EP0486464A1 (fr) 1990-11-13 1991-11-12 Dispositif pour former des corps à stabilité dimensionnelle en forme de balle en matière à fils fins

Country Status (2)

Country Link
EP (1) EP0486464A1 (fr)
AT (1) AT402166B (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995005254A1 (fr) * 1993-08-17 1995-02-23 Spaeth Michael Dispositif de regulation
ES2154106A1 (es) * 1997-08-01 2001-03-16 Explo Control S L "mecanismo para la fabricacion de cuerpos esfericos".
AT410186B (de) * 2000-02-25 2003-02-25 Koegler Andreas Einrichtung zum formen sphärischer gegenstände

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE680737C (de) * 1935-08-20 1939-09-06 Conrad Held Explosionsschutzsicherung
CH619416A5 (en) * 1977-11-29 1980-09-30 Explosafe Sa Method of manufacturing a filling mass or load for withstanding the effect of an explosion
EP0342608A1 (fr) * 1988-05-17 1989-11-23 Max Michael Dr. Späth Procédé et dispositif de fabrication d'éléments de remplissage à partir de métal déployé

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE680737C (de) * 1935-08-20 1939-09-06 Conrad Held Explosionsschutzsicherung
CH619416A5 (en) * 1977-11-29 1980-09-30 Explosafe Sa Method of manufacturing a filling mass or load for withstanding the effect of an explosion
EP0342608A1 (fr) * 1988-05-17 1989-11-23 Max Michael Dr. Späth Procédé et dispositif de fabrication d'éléments de remplissage à partir de métal déployé

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995005254A1 (fr) * 1993-08-17 1995-02-23 Spaeth Michael Dispositif de regulation
ES2154106A1 (es) * 1997-08-01 2001-03-16 Explo Control S L "mecanismo para la fabricacion de cuerpos esfericos".
AT410186B (de) * 2000-02-25 2003-02-25 Koegler Andreas Einrichtung zum formen sphärischer gegenstände

Also Published As

Publication number Publication date
AT402166B (de) 1997-02-25
ATA228890A (de) 1996-07-15

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