EP0380452A3 - Method and apparatus for making ornamental chains with cylindrical helix links - Google Patents

Method and apparatus for making ornamental chains with cylindrical helix links Download PDF

Info

Publication number
EP0380452A3
EP0380452A3 EP19900830009 EP90830009A EP0380452A3 EP 0380452 A3 EP0380452 A3 EP 0380452A3 EP 19900830009 EP19900830009 EP 19900830009 EP 90830009 A EP90830009 A EP 90830009A EP 0380452 A3 EP0380452 A3 EP 0380452A3
Authority
EP
European Patent Office
Prior art keywords
mesh
chain
free
formation
slide
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.)
Granted
Application number
EP19900830009
Other languages
German (de)
French (fr)
Other versions
EP0380452A2 (en
EP0380452B1 (en
Inventor
Pierino Maruffi
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.)
Icm Italiana Costruzioni Metalmeccaniche Srl
Original Assignee
Icm Italiana Costruzioni Metalmeccaniche Srl
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 Icm Italiana Costruzioni Metalmeccaniche Srl filed Critical Icm Italiana Costruzioni Metalmeccaniche Srl
Publication of EP0380452A2 publication Critical patent/EP0380452A2/en
Publication of EP0380452A3 publication Critical patent/EP0380452A3/en
Application granted granted Critical
Publication of EP0380452B1 publication Critical patent/EP0380452B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21L—MAKING METAL CHAINS
    • B21L11/00—Making chains or chain links of special shape
    • B21L11/005—Making ornamental chains
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21L—MAKING METAL CHAINS
    • B21L7/00—Making chains or chain links by cutting single loops or loop-parts from coils, assembling the cut parts and subsequently subjecting same to twisting with or without welding

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wire Processing (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
  • Jigs For Machine Tools (AREA)
  • Adornments (AREA)

Abstract

Une machine pour la formation de chaínes ornementales avec des mailles en hélice cylindrique, comprenant:
- une première section (A) pour les déplacements de chaque maille libre, jusqu'à son maillage avec la maille correspondante de la chaíne en cours de formation qui a été maillée en dernier, avec un arbre vertical (12) motorisé, portant un support horizontal (15) de guidage pour un coulisseau (16) d'un groupe porte-pince, coulissant horizontalement entre une position reculée inactive et deux positions avancées, respectivement, de prise d'une maille libre d'une machine de formation des mailles et de positionnement de ladite maille libre dans une position de maillage; avec une pince (35) pour la prise de la maille libre, qui est asservie à un mouvement d'avancement hélicoidal suivant de son axe longitudinal, pour réaliser le maillage avec la dernière maille correspondante de la chaíne en formation;
- une deuxième section (B) pour le blocage de l'avant-dernière maille de la chaíne en formation, avec un arbre creux (42) vertical motorisé, coulissant axialement, et portant une glissière horizontale (43) pour un coulisseau (44) pourvu de deux étaux distincts (45,46) et mobile de manière appropriée pour positionner séparément lesdits étaux (45,46) dans la position de blocage d'une maille correspondante de la chaíne en cours de formation. A machine for the formation of ornamental chains with cylindrical helical meshes, comprising:
- a first section (A) for the displacements of each free mesh, until its mesh with the corresponding mesh of the chain being formed which was meshed last, with a vertical shaft (12) motorized, carrying a support horizontal (15) guide for a slide (16) of a clamp holder group, sliding horizontally between a retracted inactive position and two advanced positions, respectively, for taking a free mesh of a mesh forming machine and positioning said free mesh in a mesh position; with a clamp (35) for gripping the free mesh, which is slaved to a helical advancement movement along its longitudinal axis, to make the mesh with the last corresponding mesh of the chain in formation;
- A second section (B) for blocking the penultimate mesh of the chain in formation, with a hollow motorized vertical shaft (42), sliding axially, and carrying a horizontal slide (43) for a slide (44) provided with two separate clamps (45,46) and movable appropriately to position said clamps (45,46) separately in the blocking position of a corresponding mesh of the chain being formed.

EP90830009A 1989-01-24 1990-01-11 Method and apparatus for making ornamental chains with cylindrical helix links Expired - Lifetime EP0380452B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT932189 1989-01-24
IT8909321A IT1233139B (en) 1989-01-24 1989-01-24 METHOD AND MACHINE FOR THE FORMATION OF ORNAMENTAL CHAINS WITH CYLINDRICAL PROPELLER LINKS

Publications (3)

Publication Number Publication Date
EP0380452A2 EP0380452A2 (en) 1990-08-01
EP0380452A3 true EP0380452A3 (en) 1991-06-05
EP0380452B1 EP0380452B1 (en) 1993-12-15

Family

ID=11128416

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90830009A Expired - Lifetime EP0380452B1 (en) 1989-01-24 1990-01-11 Method and apparatus for making ornamental chains with cylindrical helix links

Country Status (5)

Country Link
US (1) US5092120A (en)
EP (1) EP0380452B1 (en)
DE (1) DE69005134T2 (en)
ES (1) ES2049455T3 (en)
IT (1) IT1233139B (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE329030C (en) * 1918-11-07 1920-11-13 Karl Bosch Jr Method and device for the machine production of French chains
GB1547584A (en) * 1976-05-28 1979-06-20 Janne J Machine for forming a decorative chain
DE3334449A1 (en) * 1983-09-23 1985-04-11 Fico Fischer & Co Maschinenbau GmbH, 7537 Remchingen Method and device for making a jewellery link chain

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2617250A (en) * 1949-09-24 1952-11-11 Kunzmann Chain Co Double-link chain machine
IT1207830B (en) * 1987-02-06 1989-06-01 C M S S R L Costruzione Macchi APPARATUS FOR THE PRODUCTION OF ORNAMENTAL CHAINS OF THE TYPE KNOWN AS PEACOCK EYE.

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE329030C (en) * 1918-11-07 1920-11-13 Karl Bosch Jr Method and device for the machine production of French chains
GB1547584A (en) * 1976-05-28 1979-06-20 Janne J Machine for forming a decorative chain
DE3334449A1 (en) * 1983-09-23 1985-04-11 Fico Fischer & Co Maschinenbau GmbH, 7537 Remchingen Method and device for making a jewellery link chain

Also Published As

Publication number Publication date
EP0380452A2 (en) 1990-08-01
EP0380452B1 (en) 1993-12-15
DE69005134D1 (en) 1994-01-27
IT8909321A0 (en) 1989-01-24
US5092120A (en) 1992-03-03
DE69005134T2 (en) 1994-05-19
ES2049455T3 (en) 1994-04-16
IT1233139B (en) 1992-03-14

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