US3466911A - Mass production of standardised components - Google Patents

Mass production of standardised components Download PDF

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Publication number
US3466911A
US3466911A US634944A US3466911DA US3466911A US 3466911 A US3466911 A US 3466911A US 634944 A US634944 A US 634944A US 3466911D A US3466911D A US 3466911DA US 3466911 A US3466911 A US 3466911A
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US
United States
Prior art keywords
roller
rollers
throat
blank
machine
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
US634944A
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English (en)
Inventor
Jacob Marcovitch
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.)
ROTARY PROFILE ANSTALT
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ROTARY PROFILE ANSTALT
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 ROTARY PROFILE ANSTALT filed Critical ROTARY PROFILE ANSTALT
Application granted granted Critical
Publication of US3466911A publication Critical patent/US3466911A/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
    • B21K1/00—Making machine elements
    • B21K1/02—Making machine elements balls, rolls, or rollers, e.g. for bearings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
    • B21H1/00—Making articles shaped as bodies of revolution
    • B21H1/14—Making articles shaped as bodies of revolution balls, rollers, cone rollers, or like bodies

Definitions

  • a metal band is passed through the throat defined between the inner surface of a hollow roller and the circumference of a roller mounted eccentrically within the cavity of the hollow roller, the opposed roller surfaces defining between them a series of dies which profile the band to form a line of articles separated by rupturable webs.
  • Direction-changing means are provided to lead the band to and from the throat.
  • This invention relates to the mass production of standardised articles from blank material such as strip, bar, rod or individual pieces.
  • the articles are continuously fabricated as a ribbon in which a multiplicity of the articles is joined by webs which are ruptured to free the individual articles.
  • a blank is passed through the throat defined by parallel, juxtaposed rollers which are suitably profiled to act as dies and to impose the required shape on the blank.
  • the objection to this arrangement is that the rollers are virtually in line contact with the blank, with the result that the die cavities defined between the juxtaposed rollers are not completely enclosed during the formation of each article.
  • the material of the blank is therefore not fully entrapped and is extruded from the die cavity to some extent, as the rollers rotate, so that the articles tend to lack precision.
  • the object of the present invention is to provide apparatus in which the difficulty discussed above is minimised.
  • the throat is defined between two rollers of which one is hollow and the other is located within its cavity.
  • rollers are rotated for their peripheral speeds at the throat to be the same. If one face of the finished article is to be smooth, there need be no co-ordination between the rollers. Indeed, the smooth-peripheral roller may be frictionally driven by the blank. However, if the profile to be imposed on the blank is partly imposed by one and partly by the other roller, then the rollers must be geared together to run in unison, so that the profiles are in register with one another.
  • rollers are arranged for their peripheries to be as close together as is possible. This ensures that webs joining or surrounding the shapes formed in the blank are as thin as is practicable. This not only saves material, but facilitates severance of the webs to liberate the individual articles.
  • the machine of the invention has the disadvantage over known machines that a lengthy rod, bar or other blank cannot be led directly into the throat, as the outer roller is in the way, whereas in the known form there is no such difl'lculty. For short blanks this need not matter, but for long ones, it does. A manner of overcoming this problem is described later.
  • the machine may be associated with a device for liberating the components from the webs.
  • FIGURE 1 is a vertical section through the machine
  • FIGURE 2 is a view, partly in section, on the line 22 of FIGURE 1,
  • FIGURE 3 is a fragmentary sectioned view on the line 33 of FIGURE 1, on an enlarged scale,
  • FIGURE 4 is a fragmentary sectional view of a known machine
  • FIGURE 5 is a fragmentary sectional view of the machine of FIGURES 1 to 3, corresponding to the view of FIGURE 4.
  • FIGURES 1, 2, 3 and 5 consists essentially of an annular roller 10, within the cavity of which is mounted a solid roller 12.
  • the outer roller is rotatably mounted in any suitable manner, for instance on rollers 13, rotating about fixed axes, while the inner roller is carried on a shaft 14 that is journalled in bearings 15.
  • the inner roller is mounted eccentrically with respect to the outer roller, and the eccentricity is such that a convergent-divergent throat 16 is defined between the inner face of the outer roller and the periphery of the inner roller.
  • each die 18 provides one part of the die.
  • the shaft 14 has mounted on it a spur wheel 26 that engages with a ring gear 24 fast with the outer roller.
  • the shaft 14 is driven through a spur gear 28. If, however, the die is sunk entirely within one of the rollers, the other roller having a smooth surface, it is then not essential for the rollers to be mechanically coupled, since there is then continuous register of the die.
  • One roller may be recessed circumferentially to receive the other, so that the die cavity is closed off at each side. This is seen in FIGURE 3.
  • the machine so far described would be complete.
  • the means consists of direction-changing guides or pulleys 32, 34 (FIGURES 1 and 2) to lead the workpiece into parallelism with the throat and guide it out of the crescent.
  • a lengthy blank 38 is passed around the pulley 32 and its end is offered to the throat 16. Rotation of the rollers draws the blank into and through the throat. As the throat converges, so is the blank reduced in thickness and the material flows plastically into each die cavity to fill it. Between the dies, the blank is flattened to a thin ribbon which constitutes an easily rupturable web 40' between the components.
  • a multiplicity of components may be made abreast of each other or of one another, to increase the output of the machine.
  • the end product of the machine is a ribbon of components, divided by the rupturable webs 40, means may be incorporated with the machine to separate the components from the ribbon. In other cases the finished articles are formed individually from separate blanks.
  • a machine for mass-producing standardized articles from blank material consisting of two rollers, one of which is hollow and the other of which is contained within its cavity with its axis parallel with the axis of the hollow roller, but displaced from it to provide between the inner face of the hollow roller and the periphery of the inner roller a convergent-divergent throat 10 it from the throat to the outside of the crescent.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Rolling (AREA)
  • Dry Formation Of Fiberboard And The Like (AREA)
  • Making Paper Articles (AREA)
US634944A 1966-05-05 1967-05-01 Mass production of standardised components Expired - Lifetime US3466911A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ZA662614 1966-05-05

Publications (1)

Publication Number Publication Date
US3466911A true US3466911A (en) 1969-09-16

Family

ID=25560987

Family Applications (1)

Application Number Title Priority Date Filing Date
US634944A Expired - Lifetime US3466911A (en) 1966-05-05 1967-05-01 Mass production of standardised components

Country Status (5)

Country Link
US (1) US3466911A (cg-RX-API-DMAC7.html)
DE (1) DE1602674A1 (cg-RX-API-DMAC7.html)
FR (1) FR1550083A (cg-RX-API-DMAC7.html)
GB (1) GB1177691A (cg-RX-API-DMAC7.html)
SE (1) SE342998B (cg-RX-API-DMAC7.html)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2640809A1 (de) * 1976-08-13 1977-03-24 Atomic Energy Authority Uk Verfahren und vorrichtung zum formen von gegenstaenden
US4177658A (en) * 1978-06-08 1979-12-11 Western Electric Co., Inc. Methods and apparatus for continuous extrusion
US4233832A (en) * 1979-01-26 1980-11-18 Rowell Douglas W Method and apparatus for rolling metal wire or rod into wide, flat strips
US4870851A (en) * 1988-12-23 1989-10-03 Yazaki Corporation Apparatus for producing stranded cable
CN100448567C (zh) * 2007-04-29 2009-01-07 广东南方特种铜材有限公司 一种铜球冷轧装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US596899A (en) * 1898-01-04 Thirds to herbert c
US607015A (en) * 1898-07-12 Machine for making steel balls
US958010A (en) * 1902-04-30 1910-05-17 American Typographic Corp Rolling mechanism.
US1217748A (en) * 1913-11-14 1917-02-27 Edwin T Greenfield Art of metal-working.
US2421011A (en) * 1944-10-16 1947-05-27 Standard Telephones Cables Ltd Metal-cutting system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US596899A (en) * 1898-01-04 Thirds to herbert c
US607015A (en) * 1898-07-12 Machine for making steel balls
US958010A (en) * 1902-04-30 1910-05-17 American Typographic Corp Rolling mechanism.
US1217748A (en) * 1913-11-14 1917-02-27 Edwin T Greenfield Art of metal-working.
US2421011A (en) * 1944-10-16 1947-05-27 Standard Telephones Cables Ltd Metal-cutting system

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4065950A (en) * 1975-09-12 1978-01-03 United Kingdom Atomic Energy Authority Formation of articles
DE2640809A1 (de) * 1976-08-13 1977-03-24 Atomic Energy Authority Uk Verfahren und vorrichtung zum formen von gegenstaenden
US4177658A (en) * 1978-06-08 1979-12-11 Western Electric Co., Inc. Methods and apparatus for continuous extrusion
US4233832A (en) * 1979-01-26 1980-11-18 Rowell Douglas W Method and apparatus for rolling metal wire or rod into wide, flat strips
US4870851A (en) * 1988-12-23 1989-10-03 Yazaki Corporation Apparatus for producing stranded cable
CN100448567C (zh) * 2007-04-29 2009-01-07 广东南方特种铜材有限公司 一种铜球冷轧装置

Also Published As

Publication number Publication date
SE342998B (cg-RX-API-DMAC7.html) 1972-02-28
DE1602674A1 (de) 1970-11-12
FR1550083A (cg-RX-API-DMAC7.html) 1968-12-20
GB1177691A (en) 1970-01-14

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