FR2379047A1 - Detecteur de boite courte destine a une machine de production de corps de boites - Google Patents

Detecteur de boite courte destine a une machine de production de corps de boites

Info

Publication number
FR2379047A1
FR2379047A1 FR7702200A FR7702200A FR2379047A1 FR 2379047 A1 FR2379047 A1 FR 2379047A1 FR 7702200 A FR7702200 A FR 7702200A FR 7702200 A FR7702200 A FR 7702200A FR 2379047 A1 FR2379047 A1 FR 2379047A1
Authority
FR
France
Prior art keywords
metal
coil
oscillator
sizing
frequency comparator
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
FR7702200A
Other languages
English (en)
Other versions
FR2379047B1 (fr
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.)
Primerica Inc
Original Assignee
American Can Co
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 American Can Co filed Critical American Can Co
Priority to FR7702200A priority Critical patent/FR2379047A1/fr
Publication of FR2379047A1 publication Critical patent/FR2379047A1/fr
Application granted granted Critical
Publication of FR2379047B1 publication Critical patent/FR2379047B1/fr
Granted legal-status Critical Current

Links

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
    • B21D51/16—Making hollow objects characterised by the use of the objects
    • B21D51/26—Making hollow objects characterised by the use of the objects cans or tins; Closing same in a permanent manner
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V3/00—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
    • G01V3/08—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices
    • G01V3/10—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices using induction coils
    • G01V3/101—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices using induction coils by measuring the impedance of the search coil; by measuring features of a resonant circuit comprising the search coil

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Remote Sensing (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Electromagnetism (AREA)
  • Environmental & Geological Engineering (AREA)
  • Geology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Geophysics (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)

Abstract

L'invention concerne un détecteur de boîtes courtes dans une machine produisant des corps de boîtes. Le détecteur comporte un enroulement dont l'inductance varie en fonction de la présence sous l'enroulement d'un entrefer, d'un poinçon 35E seul ou recouvert d'un corps de boîte 26 ayant la longueur correcte. Cet enroulement est relié à un oscillateur 254 dont la fréquence de sortie varie en fonction de ladite impédance et qui est relié à un circuit comparateur de fréquence à phase rigide produisant un signal d'erreur si la boîte est courte Application à la production de corps de boîtes, par exemple en acier, en acier étamé, etc, telles que des boîtes de conserve.
FR7702200A 1977-01-26 1977-01-26 Detecteur de boite courte destine a une machine de production de corps de boites Granted FR2379047A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7702200A FR2379047A1 (fr) 1977-01-26 1977-01-26 Detecteur de boite courte destine a une machine de production de corps de boites

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7702200A FR2379047A1 (fr) 1977-01-26 1977-01-26 Detecteur de boite courte destine a une machine de production de corps de boites

Publications (2)

Publication Number Publication Date
FR2379047A1 true FR2379047A1 (fr) 1978-08-25
FR2379047B1 FR2379047B1 (fr) 1981-04-30

Family

ID=9185934

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7702200A Granted FR2379047A1 (fr) 1977-01-26 1977-01-26 Detecteur de boite courte destine a une machine de production de corps de boites

Country Status (1)

Country Link
FR (1) FR2379047A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0306166A1 (fr) * 1987-08-11 1989-03-08 Oberg Industries Inc. Procédé et appareil pour découvrir une alimentation fautive de matériau en feuilles
EP0637760A2 (fr) * 1993-08-03 1995-02-08 Ebinger, Klaus Méthode pour la détection électromagnétique d'objets

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3066254A (en) * 1959-11-13 1962-11-27 Tuboscope Company Mounting equipment for scanning tubular goods
US3167044A (en) * 1958-04-14 1965-01-26 Kaiser Aluminium Chem Corp Forming apparatus
US3509754A (en) * 1969-05-28 1970-05-05 Metal Flo Corp Method and apparatus for deep drawing metal
FR2062479A5 (fr) * 1969-09-22 1971-06-25 Kaiser Aluminium Chem Corp
FR2203148A1 (fr) * 1972-10-16 1974-05-10 Nippon Kokan Kk

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3167044A (en) * 1958-04-14 1965-01-26 Kaiser Aluminium Chem Corp Forming apparatus
US3066254A (en) * 1959-11-13 1962-11-27 Tuboscope Company Mounting equipment for scanning tubular goods
US3509754A (en) * 1969-05-28 1970-05-05 Metal Flo Corp Method and apparatus for deep drawing metal
FR2062479A5 (fr) * 1969-09-22 1971-06-25 Kaiser Aluminium Chem Corp
FR2203148A1 (fr) * 1972-10-16 1974-05-10 Nippon Kokan Kk

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0306166A1 (fr) * 1987-08-11 1989-03-08 Oberg Industries Inc. Procédé et appareil pour découvrir une alimentation fautive de matériau en feuilles
EP0637760A2 (fr) * 1993-08-03 1995-02-08 Ebinger, Klaus Méthode pour la détection électromagnétique d'objets
EP0637760A3 (fr) * 1993-08-03 1995-04-12 Ebinger Klaus Méthode pour la détection électromagnétique d'objets.

Also Published As

Publication number Publication date
FR2379047B1 (fr) 1981-04-30

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Legal Events

Date Code Title Description
ST Notification of lapse