US2531663A - Punching and drawing press - Google Patents

Punching and drawing press Download PDF

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Publication number
US2531663A
US2531663A US791436A US79143647A US2531663A US 2531663 A US2531663 A US 2531663A US 791436 A US791436 A US 791436A US 79143647 A US79143647 A US 79143647A US 2531663 A US2531663 A US 2531663A
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US
United States
Prior art keywords
punch
bore
dishing
cutting out
nut
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
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US791436A
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English (en)
Inventor
Biginelli Oreste Flavio Alfred
Biginelli Pietro Al Maggiorino
Big Alexandro Giovanni Andrea
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Individual
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Individual
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Publication date
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Publication of US2531663A publication Critical patent/US2531663A/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D23/00—Producing tubular articles
    • B29D23/001—Pipes; Pipe joints
    • 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
    • B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
    • B21D22/20—Deep-drawing
    • B21D22/28—Deep-drawing of cylindrical articles using consecutive dies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2021/00—Use of unspecified rubbers as moulding material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts

Definitions

  • .It is :then necessaryto arrange different presses following one another and successively effectuating the three operations of cutting out, dishing anddrawing; each of said presses being made especially yfor one of said operations.
  • each Vpress is generally provided with afdevice supplying the pieces automatically and increasing thecapacity of production of the press.
  • the -plant which is necessary for making the finished cases is thus very important and very expensive since it comprises three presses and three automatic piece supplying devices.
  • the present invention has for its object to remedy said inconveniences.
  • the invention relates to a machine for the manufacture Aol deep metallic vessels such as cases, characterized in that female cutting out, dishing and drawing tools are arranged axially after one another which makes it possible, in one andthe same ⁇ working operation, to cut out, dish and 4'draw the blank in order to obtain a deep vessel ⁇ in its definitive shape.
  • the female cutting out, dishing and drawing tools are combined with male tools such as punches actuated by a press mechanism.
  • a retaining device such as an extractor is arranged after the female tools in order to retain lthe worked piece while the dishing and draw" ing' punch returns to its initial position after its Working stroke.
  • the invention also covers a machine characterized in that the ⁇ dishing and drawing punch alone receives the thrust of the ⁇ press mechanism, the cutting out punch being capable, at certain moments, of being rendered fast with said dishing and drawing punch.
  • the dishing ⁇ and drawing punch passes axially through the cutting out punch which vis fast with a Istop able lto recede, the dishing and drawing punch carrying along the cutting out punch in its movement when it strikes against the :stop of the latter.
  • Figure l is a sectional axial view, the cutting out and .dishing punches :being in their raised position.
  • Figure 2 is a sectionalaxial viewshowing the machine at the ⁇ moment when the cutting out punch comes into VContact 4with the ⁇ strip to be cutout.
  • Figure 3 is a .sectional ,axial view of the ⁇ machine, the cutting out punch being at the end of Tits working stroke.
  • Figure 4 is a sectional ⁇ axial view ofthe machine showing the Ydishing ⁇ punch at the end o its Working stroke.
  • Figure 5 is a cross-sectional view of this machine through line 5-5 of Figure 1.
  • Figure l6 ris a crossesectional ⁇ View ⁇ of Ythe machine through line S-Brof Figure 2.
  • Figure '7 is a cross-sectional view of ⁇ the ma' chine'through line 'I-l of Figure 3.
  • the apparatus 4 shown in Figures l to 7 iorms only the Working ⁇ device ci the machine, it being ⁇ actuated through a press mechanism of known type.
  • a sliding -sleeve 6 which can be rendered fast with the rod 5 or remain independent of said rod. This sleeve 6 can slide in the casing 2 on a rather reduced length while the rod 5 itself can slide in the bore of the sleeve.
  • a ring I the upper ⁇ part B of which ⁇ acts as a die for cutting out the 'blank and the lower part of which serves as a dishing die
  • These rings IIJ, Il, I2, I3 are maintained spaced from one another, as desired, through a series of spacing rings I4, I5, I6, Il.
  • the upper ring I4 outwardly comprises a groove 25 into which open holes 26 which, on the other hand, open into the inner bore of the ring I4.
  • the groove 25 of the ring I4 is placed opposite the opening of a passage 21 provided in the casing I.
  • a pump not shown, forces oil through the passage 21, the groove 25 and the holes 26 into the -bore of the ring I4.
  • the sleeve i3 comprises in its upper part a conical bore 2l against which the six clamping members such as sectors 23 of an extractor 22 are pressed through a spring 24 located in the sleeve i8. rilhe spring 24 rests, on the other hand, on the washer
  • the six sectors 23 of the extractor 22 which are shown in Figure 6 have each an opening of 60 and form through their bringing together a continuous ring resting through a conical part against the conical bore 2I of the sleeve I8.
  • the above mentioned punches can be rentiered fast with one another by means of a capnut 33 screwed on the upper part of the sliding sleeve E and against which the nut 29 which is fastwith the punch 28 can come to rest.
  • lThree radial keys ( Figures 1 and 7) are slidably mounted in three guides spaced by 120 and provided in the sliding sleeve These keys are urged by a pin-spring 35 which tends to move them apart radially and to cause them to rest against the internal surface of the cylin- I drical part 2 of the casing.
  • This internal surface comprises in its upper part a iirst cylindrical bore then a second cylindrical bore 3l of larger diameter connected with the iirst bore through a conical bearing surface 3S the angle of which is about 45 with respect to the general axis.
  • the cylindrical bearingv surface 3l blends with the general bore Q3 of the casing through a transversal bearing surface M, acting as a stop.
  • the radial keys Sie which are moved away resiliently through the springs 35 can thus occupy two positions:
  • the metallic strip 4 which is chosen with a width larger than the diameter of the blank which will be punched out by the cutting out punch Sii is introduced into the space forming a guide between parts I and 2 of the casing ( Figures 1 and 2, 5).
  • the dishing and drawing punch 28 is in its upper position and maintains the cutting out punch 3s in its higher position owing to the fact that the nut 29 strikes against the cap-nut 33 which is fast with the sliding sleeve 6 ( Figure 1).
  • the dishing and drawing punch continues its downward movement alone. During this stroke the dishing of the blank through the die S and then the successive drawings through the rings ill, II, I2, I3 are effected successively.
  • the punch 28 occupies the position shown in Figure l and carries at its end the nished piece such as a case el.
  • the press mechanism produces the displacement of the head in the reverse direction, the punch 23 rises again, the sectors 23 of the extractor 22 are forced through the spring 24 into the conical bore 2i Where they press against case si and through clamping oppose any upward displacement of said case. Therefore, the punch 28 gets free from the case 4I which is held fast in the axial passage 42 and which will be ejected during the following press stroke by the following piece through the axial hole 42 of the nut 2U.
  • the freed strip 4 can then be shifted longitudinally either manually or automatically by a length somewhat larger than the diameter of the blank cut out by the punch 30.
  • the machine according to the invention can be fed through an automatic supplying device the Work of which is reduced to the supply of the strip to the machine which is a simple and not very expensive device.
  • the machine made in accordance with the invention makes it possible to obtain together with a high eiciency a plant comprising only a single machine and a single automatic supplying device, thus a plant which is much less important and much less expensive than the known plants which comprise machines i for each operation and automatic feeding devices for each machine.
  • the combination comprising a casing of generally elongated form, divided into an upper portion and a lower portion by a transverse slot for guiding the strip to be cut,
  • a sliding sleeve displaceable in said cylindrical recess, a cap mounted upon the upper portion of said sliding sleeve, a conical bore forming peripheral inclined slopes in the internal face of said cylindrical recess throughout all of its priphery, a cylindrical enlarged bore provided in said cylindrical recess below and following said conical bore, a cutting punch carried at the lower end of said sliding sleeve, a dishing-drawing punch sliding axially in said sliding sleeve and capable of projecting beyond said cutting punch, pressure means, an assembling nut connecting the upper portion of said dishing-drawing punch to said pressure means and forming an abutment against said cap for raising said sliding sleeve by said dishing drawing punch, radiating keys mounted radially slidingly in said sliding sleeve, springs applied to said radiating keys and maintaining them in exterior engagement with said conical bore and said enlarged boring, said radiating keys being thus capable of projecting into the bore of the sliding sleeve when they are in

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
US791436A 1946-12-27 1947-12-12 Punching and drawing press Expired - Lifetime US2531663A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR2531663X 1946-12-27

Publications (1)

Publication Number Publication Date
US2531663A true US2531663A (en) 1950-11-28

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ID=9686206

Family Applications (1)

Application Number Title Priority Date Filing Date
US791436A Expired - Lifetime US2531663A (en) 1946-12-27 1947-12-12 Punching and drawing press

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US (1) US2531663A (en(2012))
NL (1) NL133869C (en(2012))

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2821156A (en) * 1951-12-05 1958-01-28 Lyon George Albert Die
US3191422A (en) * 1961-01-10 1965-06-29 American Can Co Method and apparatus for forming metal articles
US3203218A (en) * 1961-05-22 1965-08-31 American Can Co Method and apparatus for forming metal containers
US3399558A (en) * 1966-02-02 1968-09-03 Kaiser Aluminium Chem Corp Die assembly
US4732031A (en) * 1987-04-20 1988-03-22 Redicon Corporation Method of forming a deep-drawn and ironed container
US20120324977A1 (en) * 2011-06-22 2012-12-27 Wu yong-ping Stamping tool
US20220008981A1 (en) * 2018-12-04 2022-01-13 Novelis Inc. Redraw and ironing system

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US530915A (en) * 1894-12-18 Island
US1720375A (en) * 1929-07-09 Chine co
US2369260A (en) * 1944-03-07 1945-02-13 Remington Arms Co Inc Tube drawing apparatus
US2389738A (en) * 1943-04-09 1945-11-27 Western Electric Co Article forming machine
US2412813A (en) * 1944-05-03 1946-12-17 Keller Jakob Device for manufacturing thinwalled containers open at one end
USRE23095E (en) * 1949-03-29 Device for manufacturing thin

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US530915A (en) * 1894-12-18 Island
US1720375A (en) * 1929-07-09 Chine co
USRE23095E (en) * 1949-03-29 Device for manufacturing thin
US2389738A (en) * 1943-04-09 1945-11-27 Western Electric Co Article forming machine
US2369260A (en) * 1944-03-07 1945-02-13 Remington Arms Co Inc Tube drawing apparatus
US2412813A (en) * 1944-05-03 1946-12-17 Keller Jakob Device for manufacturing thinwalled containers open at one end

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2821156A (en) * 1951-12-05 1958-01-28 Lyon George Albert Die
US3191422A (en) * 1961-01-10 1965-06-29 American Can Co Method and apparatus for forming metal articles
US3203218A (en) * 1961-05-22 1965-08-31 American Can Co Method and apparatus for forming metal containers
US3399558A (en) * 1966-02-02 1968-09-03 Kaiser Aluminium Chem Corp Die assembly
US4732031A (en) * 1987-04-20 1988-03-22 Redicon Corporation Method of forming a deep-drawn and ironed container
US20120324977A1 (en) * 2011-06-22 2012-12-27 Wu yong-ping Stamping tool
US20220008981A1 (en) * 2018-12-04 2022-01-13 Novelis Inc. Redraw and ironing system

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NL133869C (en(2012))

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