US3702559A - Can body making machine - Google Patents

Can body making machine Download PDF

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Publication number
US3702559A
US3702559A US105307A US3702559DA US3702559A US 3702559 A US3702559 A US 3702559A US 105307 A US105307 A US 105307A US 3702559D A US3702559D A US 3702559DA US 3702559 A US3702559 A US 3702559A
Authority
US
United States
Prior art keywords
punch
ironing
cup
punches
stripper
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
Application number
US105307A
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English (en)
Inventor
Richard J Hasselbeck
Elton G Kaminski
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.)
Stolle Corp
Original Assignee
Stolle Corp
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 Stolle Corp filed Critical Stolle Corp
Application granted granted Critical
Publication of US3702559A publication Critical patent/US3702559A/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B21D51/16—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
    • 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
    • B21D24/00—Special deep-drawing arrangements in, or in connection with, presses

Definitions

  • the first track serves to 3,203,218 8/1965 Boltet al. ..72/349 quickly imning Punch while 3,239,453 12/1966 Wyle et a] ..72/349 hOldS the stripper Punch smimarystrip the 3,470,725 10 1969 Brown et al. ..72/349 formed can from the ironina P h. n thereafter 3,524,338 8/1970 Bozek ..72/34s returns the stripper punch quickly to its starting P Primary Examiner-Richard J. Herbst Attorney-Melville, Strasser, Foster & Hofi'man tion.
  • An indexing pocket conveyor transports the formed cans individually to a trimmer.
  • a gravity chute feeds the preformed cups to the wall-ironing punch, and means are provided to re-round the cups for entry thereinto of the ironing punch.
  • one piece includes the cylindrical wall and one end wall integral therewith, and the other piece is the other end wall which is attached after filling.
  • one of the procedures includes the preforming of a cup having relatively thick walls and being relatively shallow. This may be accomplished by drawing or by impact extrusion. Regardless of how the cup has been formed, it is necessary to wall-iron it. For this operation the cup is entered by a punch element, and is forced thereby through a wall-ironing tool pack which may consist of one or more ironing rings. In this operation the wall thickness is reduced to the required final dimension, and the wall length is increased to somewhat more than the required final length. A bottom forming, or doming operation is then performed on the integral end, and finally the free end of the formed can is trimmed to the required length.
  • Wall ironing presses have, in the past, been either hydraulic presses or mechanical crank presses. Both types of presses entail certain disadvantages. While a uniform punch speed is essential for good wall ironing, and while hydraulic presses provide such uniform speed, they are too slow in operation for modern high speed production requirements. Crank presses on the other hand can be operated at high speeds, but they do not provide the uniform punch speed through the wallironing tool pack. Furthermore, mechanical presses must have an excessively long stroke to afford ample time for loading a new cup into position for wall-ironing. (Reference here is to back stroke after the formed can has been stripped from the punch.)
  • Yet another object of the invention is to increase still further the speed of production of can bodies, by incorporating a trimmer into the machine, and providing a special conveyor to transport formed cans, one by one, from the forming operation to the trimmer, without danger of jamming which would be likely to result from the fact that, after wall-ironing, the can bodies are of varying lengths.
  • Still another object of the invention resides in operating all elements thereof, including the cup feed, wallironing and doming, stripping, conveying to the trimmer, and the trimmer, in timed relation to each other, from a single source of motive power.
  • FIG. 1 is an isometric view of a machine according to the present invention.
  • FIG. 2 is a view partly in cross section on an enlarged scale taken axially of the machine.
  • FIG. 3 is an elevational view on a very much enlarged scale of the cup feeding and re-rounding mechanism.
  • the ram 12 carries the ironing punch 25 best seen in FIG. 4 and the ram 13 carries the stripper punch 26.
  • the punches 25 and 26 occupy the condition of FIG. 4 during the working stroke of the ram.
  • the stripper punch at its end carries the doming punch 27 and that it makes an air seal at the inner face 28 with the ironing punch. Air is admitted to the axial bore 29 at constant pressure and this air through the lateral passage 30 has access to the annular space 31.
  • the air seal at 28 is broken and the air pressure in the chamber 31 is now placed in communication with the interior of the formed can so that as the ironing punch is withdrawn, the ambient air pressure does not produce a collapse of the can as a result of a vacuum pulled by the withdrawal of the ironing punch.
  • the ironing punch is cooled by coolant entering the passage 32 and through the passage 33 passing into the annular cylindrical space 34 whence it returns in the passage 35.
  • the ironing punch and the stripper punch are coaxial and have telescoping engagement.
  • the stripper punch is connected by means of the tube 36 to the ram 13 while the ironing punch 25 is connected to the ram 12.
  • the configurations of the grooves 12a and 13a is such that at the extreme retracted position of the punches with the punches in the condition shown in FIG. 4, there is a dwell period to permit bringing a succeeding cup into position for wall-ironing and doming.
  • the two punches driven by the rams 12 and 13 move forward in a working stroke as a unit and enter a preformed cup and force the cup through a wall ironing tool pack indicated at 37 in FIG. 1.
  • the combined punches 25 and 26 force the formed can against the female doming die 38 to produce the proper can end configuration.
  • cam groove is then configured to provide a dwell for the doming punch 27 while the groove 14 is configured to provide a quick return for the wall ironing punch.
  • the wall ironing punch 25 is withdrawn while the doming punch 27 holds the can in position against the female doming die.
  • the groove 15 is configured to then provide a quick return for the stripper and doming punch to return it also to its finished position, whereupon the two punches will again assume the configuration of FIG. 4 and will dwell briefly while another can comes into position.
  • cam grooves have been shown and described, the cam tracks could as well be constituted by cam lobes.
  • the ironing punch is connected to the ram by means of a shear pin at 39 so that the pin will shear and permit the ram to pursue its movement without exerting further force on the punch.
  • the cup falls into one of the pockets of the conveyor 24.
  • This conveyor is driven as heretofore described through a step by step drive (not described) in timed relation to the action of the punches and carries the formed cans individually one step at a time from the forming position to the triming position.
  • the reason for this individualized conveyor is that after wall-ironing, the formed cans will be of unequal length as a result of normal variations in basic material gauge. If such cans are collected in a chute or gravity runway, the differences in length can create trackage jams and line stoppages.
  • a can body making machine having a primary ram carrying an ironing punch, and a secondary ram carrying a stripper punch, said stripper punch being telescopingly arranged within said ironing punch, the ends of said punches being complementary, and the end of said stripper punch constituting a male doming die, said punches being adapted, as a unit, to enter a preformed cup and force it through a wall ironing tool pack and into a female doming die, said rams operating in common guides and each ram having a cam follower, a barrel cam and power means to rotate said barrel cam continuously at constant speed, said barrel cam having a primary and a secondary cam track for engagement by said cam followers respectively, said tracks providing a dwell period at the fully retracted position of said rams, said cam tracks then providing a constant speed advance of both rams as a unit in a working stroke, said secondary cam track then providing a dwell for said stripper punch at the end of said working stroke, and said primary cam track providing a quick return for said ironing punch
  • a machine having a gravity chute for feeding pre-formed cups to the punches, said chute being laterally offset from the path of said punches, a cup transfer receiver, having a substantially semicircular cavity for a cup, disposed at the bottom of said chute.
  • said receiver being mounted for oscillating movement toward the path of said punches, a cup locating member having a semicircular concave portion and positioned such that when said receiver oscillates to carry a cup thereto, the axis of said cup is aligned with said path, the complementary concavities of said receiver and member cooperating to re-round a cup prior to entry thereinto of said puches, and means to oscillate said receiver in timed relation to the stroke of said rams.
  • a machine in combination with a trimmer, a conveyor disposed to carry formed cans from the path of said punches to said trimmer, said conveyor having a series of semi-cylindrical pockets, and means to advance said conveyor in a step-by-step manner in timed relation to the stroke of said rams, whereby to bring formed cans to said trimmer one at a time without jamming due to varying lengths thereof.
  • a machine according to claim 1 wherein said ironing punch is secured to said primary ram by means of a break-away connection, whereby to prevent damage to the machine in the event of a jam in front of the punch.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
US105307A 1971-01-11 1971-01-11 Can body making machine Expired - Lifetime US3702559A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US10530771A 1971-01-11 1971-01-11

Publications (1)

Publication Number Publication Date
US3702559A true US3702559A (en) 1972-11-14

Family

ID=22305103

Family Applications (1)

Application Number Title Priority Date Filing Date
US105307A Expired - Lifetime US3702559A (en) 1971-01-11 1971-01-11 Can body making machine

Country Status (12)

Country Link
US (1) US3702559A (de)
JP (1) JPS5434704B1 (de)
BE (1) BE777450A (de)
BR (1) BR7108656D0 (de)
CA (1) CA950762A (de)
CH (1) CH548238A (de)
DE (1) DE2163563C3 (de)
FR (1) FR2121526B1 (de)
GB (1) GB1327188A (de)
IT (1) IT945521B (de)
NL (1) NL7118202A (de)
SE (1) SE393033B (de)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3908429A (en) * 1974-01-21 1975-09-30 Mts System Corp Hydraulic servo valve controlled cupping press
US3972299A (en) * 1975-01-31 1976-08-03 The Stolle Corporation Can body trimmer
US4007620A (en) * 1975-06-11 1977-02-15 Crown Cork & Seal Company, Inc. Metal container forming apparatus
US4614104A (en) * 1984-08-27 1986-09-30 Ball Corporation Apparatus for supporting a body for reciprocal movement
EP0248094A2 (de) * 1986-05-28 1987-12-09 Ball Corporation Vorrichtung zum Unterstützen eines Körpers zur Hin- und Herbewegung
WO1999041152A2 (en) * 1998-02-17 1999-08-19 Reuven Tal Beverage can with autonomous heating/cooling
US20180354018A1 (en) * 2017-06-13 2018-12-13 Stolle Machinery Company, Llc Ram assembly with removable punch mounting assembly
WO2021242358A1 (en) * 2020-05-28 2021-12-02 Stolle Machinery Company, Llc Cam driven multi-output bodymaker
WO2021242359A1 (en) * 2020-05-28 2021-12-02 Stolle Machinery Company, Llc Cam driven bodymaker
WO2021242360A1 (en) * 2020-05-28 2021-12-02 Stolle Machinery Company, Llc Cam follower assembly for can bodymaker and can bodymaker including same
US20230081092A1 (en) * 2020-05-28 2023-03-16 Stolle Machinery Company, Llc Forming assembly for bodymaker and bodymaker including same

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2351725A1 (fr) * 1976-05-19 1977-12-16 American Can Co Machine de production de corps de boites a fond ferme, equipe d'un mecanisme a poincon et extracteur, et son procede de mise en oeuvre
FR2378583A1 (fr) * 1977-01-26 1978-08-25 American Can Co Machine de production de corps de boites a fond ferme, equipe d'un mecanisme a poincon et extracteur
US4502313A (en) * 1982-05-12 1985-03-05 American Can Company Tooling adjustment
US4928511A (en) * 1988-12-13 1990-05-29 Sequa Corporation Rotary cup infeed

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3203218A (en) * 1961-05-22 1965-08-31 American Can Co Method and apparatus for forming metal containers
US3289453A (en) * 1964-06-22 1966-12-06 Kaiser Aluminium Chem Corp Apparatus for manufacturing container bodies from blanks
US3470725A (en) * 1966-07-18 1969-10-07 Metal Flo Corp Hydraulic spindle press for drawing metal
US3524338A (en) * 1968-02-05 1970-08-18 Continental Can Co Stripping punch

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE47925C (de) * TH. kipper in Menden, Brückstrafse, Kreis Iserlohn, Westph Ziehpresse zur Herstellung von Blechschalen
FR1117905A (fr) * 1955-01-17 1956-05-29 Presse horizontale à effets multiples
GB1050358A (de) * 1963-10-01
US3423985A (en) * 1966-02-04 1969-01-28 Stolle Corp Stripper and pre-draw ring for wall-ironing can bodies

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3203218A (en) * 1961-05-22 1965-08-31 American Can Co Method and apparatus for forming metal containers
US3289453A (en) * 1964-06-22 1966-12-06 Kaiser Aluminium Chem Corp Apparatus for manufacturing container bodies from blanks
US3470725A (en) * 1966-07-18 1969-10-07 Metal Flo Corp Hydraulic spindle press for drawing metal
US3524338A (en) * 1968-02-05 1970-08-18 Continental Can Co Stripping punch

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3908429A (en) * 1974-01-21 1975-09-30 Mts System Corp Hydraulic servo valve controlled cupping press
US3972299A (en) * 1975-01-31 1976-08-03 The Stolle Corporation Can body trimmer
US4007620A (en) * 1975-06-11 1977-02-15 Crown Cork & Seal Company, Inc. Metal container forming apparatus
US4614104A (en) * 1984-08-27 1986-09-30 Ball Corporation Apparatus for supporting a body for reciprocal movement
EP0248094A2 (de) * 1986-05-28 1987-12-09 Ball Corporation Vorrichtung zum Unterstützen eines Körpers zur Hin- und Herbewegung
EP0248094A3 (en) * 1986-05-28 1988-10-12 Ball Corporation Apparatus for supporting a body for reciprocal movement
WO1999041152A2 (en) * 1998-02-17 1999-08-19 Reuven Tal Beverage can with autonomous heating/cooling
WO1999041152A3 (en) * 1998-02-17 1999-12-23 Reuven Tal Beverage can with autonomous heating/cooling
US20180354018A1 (en) * 2017-06-13 2018-12-13 Stolle Machinery Company, Llc Ram assembly with removable punch mounting assembly
WO2018231334A1 (en) * 2017-06-13 2018-12-20 Stolle Machinery Company, Llc Ram assembly with removable punch mounting assembly
US10792725B2 (en) * 2017-06-13 2020-10-06 Stolle Machinery Company, Llc Ram assembly with removable punch mounting assembly
US11597001B2 (en) 2017-06-13 2023-03-07 Stolle Machinery Company, Llc Ram assembly with removable punch mounting assembly
WO2021242358A1 (en) * 2020-05-28 2021-12-02 Stolle Machinery Company, Llc Cam driven multi-output bodymaker
WO2021242359A1 (en) * 2020-05-28 2021-12-02 Stolle Machinery Company, Llc Cam driven bodymaker
WO2021242360A1 (en) * 2020-05-28 2021-12-02 Stolle Machinery Company, Llc Cam follower assembly for can bodymaker and can bodymaker including same
US11338351B2 (en) * 2020-05-28 2022-05-24 Stolle Machinery Company, Llc Cam driven multi-output bodymaker
US11511332B2 (en) 2020-05-28 2022-11-29 Stolle Machinery Company, Llc Cam driven bodymaker
US20230081092A1 (en) * 2020-05-28 2023-03-16 Stolle Machinery Company, Llc Forming assembly for bodymaker and bodymaker including same
US11666961B2 (en) 2020-05-28 2023-06-06 Stolle Machinery Company, Llc Cam follower assembly for can bodymaker and can bodymaker including same

Also Published As

Publication number Publication date
DE2163563B2 (de) 1979-05-23
SE393033B (sv) 1977-05-02
GB1327188A (en) 1973-08-15
BE777450A (fr) 1972-04-17
FR2121526B1 (de) 1975-07-18
NL7118202A (de) 1972-07-13
CH548238A (de) 1974-04-30
BR7108656D0 (pt) 1973-08-28
DE2163563C3 (de) 1980-01-17
IT945521B (it) 1973-05-10
DE2163563A1 (de) 1972-07-27
CA950762A (en) 1974-07-09
JPS5434704B1 (de) 1979-10-29
FR2121526A1 (de) 1972-08-25

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