(19)
(11) EP 0 275 369 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
17.11.1988 Bulletin 1988/46

(43) Date of publication A2:
27.07.1988 Bulletin 1988/30

(21) Application number: 87115157

(22) Date of filing: 16.10.1987
(84) Designated Contracting States:
AT BE CH DE ES FR GB GR LI LU NL SE

(30) Priority: 21.01.1987 IT 1912187
16.07.1987 IT 2132187

(71) Applicant: FRATTINI S.p.A.-COSTRUZIONI MECCANICHE
 ()

(72) Inventor:
  • Frattini, Daniele
     ()

   


(54) Improvements to machines for cone-shaping and flanging of aerosol cans and similar


(57) A machine (2) for the cone-shaping of cans (16), of aerosol type, or similar, presents improvements in its basic parts. In particular, in it the rotator (38) holding the pliers (39) and the plate (53) holding dies (45) and spindles (65) are rapidly interchangeable, and all operations of replace­ment of the drums (11) of loading and (71) of discharge and the regulating shims (10) and filling of the feed lung are also rapid. The same machine, equipped with means of con­trol and safety, is ready to be interfaced with an electronic line processor. To said machine are preferably coupled pliers (39) in which a pushing means (104) is equipped with a calibrated force sufficient to keep permanently in contact the ejector piston (106) with the bottom (108) of an object or can (16), fixed in position in a special seat (102). In said position the object (16) is held by peripheral pliers (107). Said calibrated force of the pusher (104) keeps the extractor piston (106) in contact with the bottom (108) also when the object (16) must undergo undesired displacements, in which case a proximity sensor (109) is capable of detect­ing the corresponding alignment displacement of a reference (118), integral to the same piston (106) and intervening on the stopping means of the operating machines.







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