US3793863A - Device for the manufacture of metal cylinders - Google Patents

Device for the manufacture of metal cylinders Download PDF

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Publication number
US3793863A
US3793863A US00268738A US3793863DA US3793863A US 3793863 A US3793863 A US 3793863A US 00268738 A US00268738 A US 00268738A US 3793863D A US3793863D A US 3793863DA US 3793863 A US3793863 A US 3793863A
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United States
Prior art keywords
piece
axis
roll
forming
plane passing
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Expired - Lifetime
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US00268738A
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English (en)
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D Groppini
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Individual
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    • 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
    • B21D51/24—Making hollow objects characterised by the use of the objects high-pressure containers, e.g. boilers, bottles
    • 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
    • B21D22/14—Spinning
    • 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
    • B21D41/00—Application of procedures in order to alter the diameter of tube ends
    • B21D41/04—Reducing; Closing

Definitions

  • the axis of each roll lies in a plane passing through the axis of the piece to be worked.
  • the axis of each roll passes outside of I the plane passing through the axis of the piece and through the median point of the arc of contact between roll and piece and preferably forms an angle comprised between 0 and 30 with the plane passing through the axis of the piece to be worked.
  • the present invention concerns a device for the manufacture of metal cylinders starting from a tubular piece, and in particular a device for closing one end of said tubular piece in order to form the bottom of the cylinder.
  • metal cylinders such as gas cylinders are formed essentially of a hollow cylindrical body having a bottom that can be shaped in various ways, and a neck suitable for the incorporation of the closing valve.
  • the formation and closing of the bottom of the cylinder is one of the most delicate operations in the manufacturing cycle.
  • nose-former comprises essentially a rotating head, arranged to receive the end of the original tube placed horizontally, and a forming arm placed at the opposite end of the tube.
  • a forming arm which supports at one end an idle roll with flat or convex profile, is mounted on a plate which is able to move in an are around a vertical axis, while the plate performs only horizontal movements parallel to the axis of the worked piece.
  • That known device is used by initially bringing the idle roll into contact with the edge of the tube, previously heated and kept rotating, and then imparting to the roll itself a back-and-forth movement along ever-increasing arcs of a circumference.
  • the armcarrying plate moves toward the piece exerting a pressure upon it.
  • the amplitude of the arc along which the roll is made to work reaches 90, the complete closing of the bottom of the cylinder is achieved.
  • the advance of the arm-carrying plate one can obtain an upsetting of the thickness of the bottom to the desired amount.
  • Such object is achieved by providing a device in which the mechanism for closing the bottom of the tube comprises at least two rolls which carry out their function without having to make the well-known curved trips back and forth.
  • the forming rolls of the device according to the present invention in fact carry out their action over a definite area of the bottom being formed and for this reason their movement occurs solely parallel to the axis of the tube under process.
  • the device comprises a chuck for holding the end of the tubular piece made to turn on its own axis, a forming head movable along the axis of the piece and at least two forming idle rolls having a concave profile, which are part of said forming head.
  • the concave profile of each roll corresponds perfectly to a different partial section of the external convex profile of the bottom to be formed, so that each forming roll works a distinct circular area of the bottom while it is being formed.
  • the different distinct circular areas slightly overlap, so that together they cover the entire external surface of the bottom of the cylinder to be formed.
  • the axis of each forming roll has appropriately a fixed spatial inclination.
  • FIG. 1 is a side elevation view of a device according to the present invention
  • FIG. 2 is a top plan view of the same device as shown in FIG. 1;
  • FIG. 3 is a more detailed, partly sectional view of the same device as shown in FIG. 1;
  • FIG. 4 is a detailed, partly sectional view of a different embodiment of the device according to the present invention.
  • FIG. 5 is a schematic view of a further embodiment of the device of the present invention.
  • the device according to the present invention comprises a chuck 1 which is provided with jaws 2 for holding the end of the tubular piece 3 to be closed which in the figures is indicated with dotted lines in an imaginary position.
  • the chuck l is driven by a motor which, for the sake of simplicity, is not shown in the drawings.
  • a forming head 4 In front of the chuck l is located a forming head 4 which can slide on table 5 parallel to the axis of the piece 3.
  • each roll has an axis disposed at an angle to the axis of the tubular piece 3 which is different from the angle of the other of the roll axes to the axis of the piece 3.
  • each roll 10, l 1, 12 has a different concave profile from the other of the rolls 10, ll, 12.
  • the operation of forming the bottom of the cylinder is performed by placing the tubular piece 3, previously heated at one end, with the cold end inserted into the chuck 1. Then the chuck 1 is caused to rotate and subsequently the forming head 4 is caused to advance progressively along the table 5 toward the heated end of the tubular piece 3. In this manner the idle rolls 10, 11 and 12 of head 4 are brought into contact with the hot edge of tubular piece 3 and produce the gradual shaping in accordance with their respective profiles. Continuing the advance of head 4 the piece 3 becomes completely closed and with the formation of a convex bottom 13. If the head 4 is caused to advance further after the closing of bottom 13, a perfect closing of the latter with a certain amount of upsetting is obtained.
  • FIG. 3 The forming operation is shown in greater detail in FIG. 3 in which, for the purpose of illustration, two work rolls only 10 and 11 are shown, carried by supports 7 and 8 mounted on head 4 which slides on table 5.
  • the cross-section of the bottom 13 of tubular piece 3 is shown during the work stage, for which reason there is a remaining hole 14 which will subsequently be completely closed through further advancing of the head 4 on the table in the direction of the arrow 15.
  • Arrow 16 indicates the direction of rotation of piece 3
  • arrows 17 and 18 indicate the direction of rotation of forming rolls and 11.
  • each roll can lie in a plane passing through the axis of piece 3 and be respectively parallel to the tangent line led in such a plane through the median point of the arc of contact between roll and piece.
  • the axes A-B of roll 10 and CD of roll 11 are respectively parallel to the tangent lines E-F and GH at the arcs P-Q and R-S of contact between the rolls and piece 3 in their respective median points.
  • axis of the forming roll while remaining in the same plane as the axis of the piece, forms with the above-mentioned tangent line an angle comprised between 0 and 20, having the vertex turned toward head 4.
  • tangent lines E'-F and GH an angle having the vertex turned toward forming head 4.
  • the forming rolls all have their own axis in the same plane with the axis of the piece 3 under process.
  • the axis ofeach forming roll is located outside the plane passing through the axis of the work piece 3 and through the median point of contact between roll and piece.
  • the axis of the roll forms with said plane an angle preferably comprised between 0 and and such that the peripheral speed of the roll at said median point has a component along the axis of piece 3 which is directed toward the chuck 1.
  • FIG. 5 Such embodiment is shown in FIG. 5 in which the forming rolls l0 and 11" have their axes not in the same plane with that of the work piece 3.
  • a device for closing one end of tubular metal pieces in the manufacture of cylinders comprising a chuck means to hold the piece, and a forming head movable along the axis of the piece, said forming head comprising at least two forming idle rolls having their axes at a fixed angle in space, each said roll axis being disposed at an angle to said axis of said piece different from the angle of the other of said roll axes to said axis of said piece and each roll having a different concave profile from the other of said rolls.
  • each forming roll forms an angle of O-20 with the tangent line through the median point of the arc of contact between roll and piece, led in said plane passing through the axis of the piece.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Forging (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
US00268738A 1971-07-09 1972-07-03 Device for the manufacture of metal cylinders Expired - Lifetime US3793863A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT2680471 1971-07-09

Publications (1)

Publication Number Publication Date
US3793863A true US3793863A (en) 1974-02-26

Family

ID=11220269

Family Applications (1)

Application Number Title Priority Date Filing Date
US00268738A Expired - Lifetime US3793863A (en) 1971-07-09 1972-07-03 Device for the manufacture of metal cylinders

Country Status (10)

Country Link
US (1) US3793863A (fr)
JP (1) JPS5623686B1 (fr)
AT (1) AT325389B (fr)
CS (1) CS178114B2 (fr)
DE (1) DE2144863C3 (fr)
FR (1) FR2145520B1 (fr)
GB (1) GB1389480A (fr)
HU (1) HU170799B (fr)
PL (1) PL86293B1 (fr)
RO (1) RO61046A (fr)

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4627257A (en) * 1980-05-05 1986-12-09 Coilco, Inc. Tube spin close apparatus
US4628704A (en) * 1983-09-06 1986-12-16 Michigan Special Products, Inc. Surge tank for air-conditioning compressor
US5085131A (en) * 1990-10-02 1992-02-04 Prime Tube, Inc. Hydraulic cylinder for automotive steering systems and the like
US5235837A (en) * 1991-04-19 1993-08-17 Compression Technologies, Inc. Fabrication of pressure vessels
US5598729A (en) * 1994-10-26 1997-02-04 Tandem Systems, Inc. System and method for constructing wall of a tube
US5937516A (en) * 1996-12-13 1999-08-17 General Motors Corporation Method for spin forming articles
US6154961A (en) * 1998-05-22 2000-12-05 Ah-U Co., Ltd. Method for manufacturing an water hammer arrester
US6162403A (en) * 1998-11-02 2000-12-19 General Motors Corporation Spin formed vacuum bottle catalytic converter
US6212926B1 (en) 1999-04-21 2001-04-10 Tandem Systems, Inc. Method for spin forming a tube
US20050257588A1 (en) * 2004-05-21 2005-11-24 Lancaster Paul B Metal spin forming head
US20070028915A1 (en) * 2005-08-03 2007-02-08 Alberto Bellomo Gas manifold for a cooking range, with a pipe closure
US20070093793A1 (en) * 2005-10-11 2007-04-26 Maurer Robert S Jr Microsurgical probe
CN102133604A (zh) * 2010-12-22 2011-07-27 湖州腾云制冷设备有限公司 一种缩管装置
WO2013134795A1 (fr) * 2012-03-13 2013-09-19 Gabrielyan Mekhak Appareil de fabrication de cylindres
US20150223979A1 (en) * 2012-08-28 2015-08-13 Mani, Inc. Vitreous body surgical probe and method of manufacturing same
CN114433702A (zh) * 2021-12-27 2022-05-06 西安泰金工业电化学技术有限公司 一种导电能力较好的镀银旋压钛筒

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0019033A1 (fr) * 1979-05-10 1980-11-26 Robert Bosch Gmbh Procédé de fabrication d'un réservoir à haute pression, notamment un accumulateur sous pression
DE3321363A1 (de) * 1983-06-14 1984-12-20 Th. Kieserling & Albrecht Gmbh & Co, 5650 Solingen Drueckverfahren und schwenkform-drueckmaschine zur durchfuehrung des verfahrens
IL101511A0 (en) * 1991-04-19 1992-12-30 Compression Tech Fabrication of pressure vessels
DK178066B1 (da) * 2006-05-16 2015-04-20 Bang & Olufsen As Optimeret metaltrykning ved anvendelse af drejebænk
CN109647958B (zh) * 2019-01-25 2020-03-31 中北大学 一种变壁厚筒体零件辊挤成形辊轮钢丝拉簧复位装置

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1436489A (en) * 1919-10-16 1922-11-21 Ferrier Walter Nose-forming machine
FR577311A (fr) * 1924-02-19 1924-09-03 Acieries Et Usines A Tubes De Dispositif pour rétreindre les extrémités de tubes ou de récipients cylindriques
US2325522A (en) * 1939-08-14 1943-07-27 Lauer Ambrosius Apparatus for contracting the ends of hollow bodies
US2408596A (en) * 1944-03-13 1946-10-01 Nat Tube Co Method of forming cylinder ends
US2443416A (en) * 1944-07-14 1948-06-15 Penn Electric Switch Co Tube forming die
US2568991A (en) * 1943-03-11 1951-09-25 Bendix Aviat Corp Machine and method for closing metal tubes

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4112217Y1 (fr) * 1964-02-06 1966-06-08

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1436489A (en) * 1919-10-16 1922-11-21 Ferrier Walter Nose-forming machine
FR577311A (fr) * 1924-02-19 1924-09-03 Acieries Et Usines A Tubes De Dispositif pour rétreindre les extrémités de tubes ou de récipients cylindriques
US2325522A (en) * 1939-08-14 1943-07-27 Lauer Ambrosius Apparatus for contracting the ends of hollow bodies
US2568991A (en) * 1943-03-11 1951-09-25 Bendix Aviat Corp Machine and method for closing metal tubes
US2408596A (en) * 1944-03-13 1946-10-01 Nat Tube Co Method of forming cylinder ends
US2443416A (en) * 1944-07-14 1948-06-15 Penn Electric Switch Co Tube forming die

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4627257A (en) * 1980-05-05 1986-12-09 Coilco, Inc. Tube spin close apparatus
US4628704A (en) * 1983-09-06 1986-12-16 Michigan Special Products, Inc. Surge tank for air-conditioning compressor
US5085131A (en) * 1990-10-02 1992-02-04 Prime Tube, Inc. Hydraulic cylinder for automotive steering systems and the like
US5235837A (en) * 1991-04-19 1993-08-17 Compression Technologies, Inc. Fabrication of pressure vessels
US5598729A (en) * 1994-10-26 1997-02-04 Tandem Systems, Inc. System and method for constructing wall of a tube
US5845527A (en) * 1994-10-26 1998-12-08 Tandem Systems, Inc. System and method for constricting wall of a tube
US5937516A (en) * 1996-12-13 1999-08-17 General Motors Corporation Method for spin forming articles
US6154961A (en) * 1998-05-22 2000-12-05 Ah-U Co., Ltd. Method for manufacturing an water hammer arrester
US6162403A (en) * 1998-11-02 2000-12-19 General Motors Corporation Spin formed vacuum bottle catalytic converter
US6212926B1 (en) 1999-04-21 2001-04-10 Tandem Systems, Inc. Method for spin forming a tube
US20050257588A1 (en) * 2004-05-21 2005-11-24 Lancaster Paul B Metal spin forming head
US7316142B2 (en) 2004-05-21 2008-01-08 Lancaster Paul B Metal spin forming head
US20070028915A1 (en) * 2005-08-03 2007-02-08 Alberto Bellomo Gas manifold for a cooking range, with a pipe closure
ES2304269A1 (es) * 2005-08-03 2008-10-01 Alberto Bellomo Distribuidor de gas para una cocina, con un cierre del tubo.
US7861706B2 (en) 2005-08-03 2011-01-04 Coprecitec, S.L. Gas manifold for a cooking range, with a pipe closure
US20070093793A1 (en) * 2005-10-11 2007-04-26 Maurer Robert S Jr Microsurgical probe
US7600405B2 (en) * 2005-10-11 2009-10-13 Alcon, Inc. Microsurgical probe
CN102133604A (zh) * 2010-12-22 2011-07-27 湖州腾云制冷设备有限公司 一种缩管装置
CN102133604B (zh) * 2010-12-22 2012-11-21 湖州腾云制冷设备有限公司 一种缩管装置
WO2013134795A1 (fr) * 2012-03-13 2013-09-19 Gabrielyan Mekhak Appareil de fabrication de cylindres
US20150223979A1 (en) * 2012-08-28 2015-08-13 Mani, Inc. Vitreous body surgical probe and method of manufacturing same
CN114433702A (zh) * 2021-12-27 2022-05-06 西安泰金工业电化学技术有限公司 一种导电能力较好的镀银旋压钛筒
CN114433702B (zh) * 2021-12-27 2023-05-19 西安泰金新能科技股份有限公司 一种导电能力较好的镀银旋压钛筒

Also Published As

Publication number Publication date
HU170799B (hu) 1977-09-28
GB1389480A (en) 1975-04-03
AT325389B (de) 1975-10-27
RO61046A (fr) 1976-08-15
CS178114B2 (fr) 1977-08-31
PL86293B1 (fr) 1976-05-31
JPS5623686B1 (fr) 1981-06-02
FR2145520A1 (fr) 1973-02-23
DE2144863A1 (de) 1973-01-18
FR2145520B1 (fr) 1978-05-12
DE2144863B2 (de) 1974-12-05
DE2144863C3 (de) 1975-07-10

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