US3731510A - Cross-rolling machine having workpiece blank support - Google Patents

Cross-rolling machine having workpiece blank support Download PDF

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Publication number
US3731510A
US3731510A US00154837A US3731510DA US3731510A US 3731510 A US3731510 A US 3731510A US 00154837 A US00154837 A US 00154837A US 3731510D A US3731510D A US 3731510DA US 3731510 A US3731510 A US 3731510A
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US
United States
Prior art keywords
workpiece
rolls
blank
workpiece blank
cross
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
US00154837A
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English (en)
Inventor
H Tsukamoto
N Maeda
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.)
Mitsubishi Heavy Industries Ltd
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Mitsubishi Heavy Industries Ltd
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 Mitsubishi Heavy Industries Ltd filed Critical Mitsubishi Heavy Industries Ltd
Application granted granted Critical
Publication of US3731510A publication Critical patent/US3731510A/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
    • B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
    • B21H1/00—Making articles shaped as bodies of revolution
    • B21H1/18—Making articles shaped as bodies of revolution cylinders, e.g. rolled transversely cross-rolling

Definitions

  • a cross-rolling machine which includes opposed rollers between which the workpiece billet is fed, each of which includes an operating die to form the workpiece.
  • the receiving notch for the finished workpiece is bounded on the workpiece feeding side by an arcuate support for workpiece which extends over the complete arcuate area of the receiving notch adjacent the end of the operating cutters of the dies and in a position to engage with the remaining workpiece blank after the formed workpiece has been severed therefrom.
  • the construction provides an adequate support for the blank so that it may be fed even when theblank length is reduced to a very small amount at which it may be only engaged by one lateral support rather than two.
  • a further object of the invention is to provide a cross-rolling machine which is simple in design, rugged in construction and economical to manufacture.
  • FIG. 2 is a view similar to FIG. 1 of another prior art device
  • FIG. 3 is a partial side elevational and partial sectional view of a conventional prior art lower roller of a cross-rolling machine
  • FIG. 3a is an end elevational view of the roller shown in FIG. 3;
  • FIG. 4 is a partial elevational partial sectional view of e a prior art cross-rolling machine in which only a single article is formed from a single workpiece blank;
  • FIG. Si is a view similar to FIG. 4 in which a plurality of articles are formed from a single blank of a prior art construction
  • FIG. 6 is a view similar to FIG. 4 in which aworkpiece has been reset for engagement prior to the forma tion of another workpiece of the prior art construction;
  • FIG. 7a is an elevational view of the roller shown in FIG. 7;
  • FIG. 8 is a front elevational view partly in section showing positioning of the workpiece after it has been severed in the workpiece blank
  • FIG. 8a is an end elevational view of the part as shown in FIG. 8;
  • FIG. 9 is a partial side elevational view of a roller having a support with a workpiece constructed in accordance with the invention.
  • a conventional crossrolling machine comprises an upper and lower roll 1 and 1' which are arranged for rotation about horizontal axes which are arranged in a single vertical plane. The peripheries of the rolls are in spaced opposition to receive a billet or workpiece W therebetween.
  • Each roll 1 and 1' includes a wedge-shaped outer portion in the form of a blade or die la which are correspondingly arranged in respective positions of the associated rolls I and 1'.
  • the workpiece When the rolls rotate to move the workpiece beyond the ends of the dies la, the workpiece is engaged by cutter surfaces lb, which sever the article We which is formed from the remaining portion of the billet.
  • the finished article or product Wa which is obtained each time the rolls make one rotation, falls into a receiving recess or notch 3, which is formed as an indentation into the cylinders l and 1'.
  • the workpiece W is prevented from moving out laterally by positioning elements or stops 2 arranged on each side thereof. After the article passes beyond the cutters 1b, it moves into the notch 3 and the further rotation of the roller is effective to bring it over a receiving tray or chute 4 into which it is dumped.
  • the receiving notch 3 extends along the width of the lower roll 1
  • the prior art construction is effective insofar as the receiving notch 3 is concerned, only when a single piece material is used as a blank and a single product is formed therefrom.
  • a produce Wa formed by the dies la and of each roll 1 and 1' will feed into the notch 3 when the rolls 1 and l rotate.
  • a further disadvantage is that if the workpiece W is to be accurately fed between the rollers l and 1', it must be reengaged as shown in FIG. 6 which requires a stopping of the machine and a manual repositioning of the workpiece blank W.
  • the invention embodied therein, comprises a cross-roll forming machine which includes an upper cross-roll 1 similar to the prior art, and a lower cross roll 1", which has a receiving notch 3" defined within the periphery of the roll surface and having an arcuate bottom wall 30.
  • the end of the receiving groove or notch 3" is closed by a support member 10, which in the embodiment shown in FIG. 7, comprises an arcuate piece completely filling the notch 3" adjacent the workpiece end thereof.
  • the blank holder 10 may be formed as a continuation of the surface of the lower roll 1 as shown in FIGS. 7 and 8 or the holder may comprise a separate support member l0 which fills the workpiece end of the notch 3" for a lower roll 1" as shown in FIGS. 9
  • a cross-rolling machine for forming articles from a workpiece blank which is adapted to be fed to the machine from one side thereof, comprising first and second spaced apart vertically aligned forming rolls each having circumferentially extending cooperative dies and cutting means for forming at least a portion of a workpiece billet positioned therebetween into an article, means rotatively supporting said rolls one above the other for rotation about substantially horizontal axes, means for feeding a workpiece billet between said first and second rolls to present at least a portion thereof for operation thereon by said roll dies and said cutting means, the lower one of said rolls having a finished article receiving notch defined in the surface thereof and extending around a portion of the periphery alongside the circumferential end of said cutting means in a position to receive the article as it is cut away from the workpiece blank, and a support surface on said lower one of said rolls in addition to and laterally of said dies and cutting means and defining a circumferentially extending surface alongside said dies and said cutting means and the article receiving notch and upon
  • a cross-rolling machine for forming articles from a workpiece blank according to claim 1, wherein said support comprises a surface extending around the periphery of said lower one of said rolls adjacent the end thereof to which the workpiece blank is fed and providing a support for this end of the workpiece blank.
  • a cross-rolling machine for forming articles from a workpiece blank according to claim 1, wherein said support comprises a marginal strip of said lower one of said rolls closing the end of the notch at the end adjacent the feed of said workpiece blank and providing a support for the end of the workpiece blank.
  • a cross-rolling machine for forming articles from a workpiece blank according to claim 1, wherein said support comprises a separate support member positioned to close the workpiece receiving notch at the end thereof at which the workpiece is fed to said first and second rolls.
  • a cross-rolling machine for forming articles from a workpiece blank including bolt means holding said member to said lower one of said rolls.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Rolling (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
US00154837A 1970-06-25 1971-06-21 Cross-rolling machine having workpiece blank support Expired - Lifetime US3731510A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5477970 1970-06-25

Publications (1)

Publication Number Publication Date
US3731510A true US3731510A (en) 1973-05-08

Family

ID=12980240

Family Applications (1)

Application Number Title Priority Date Filing Date
US00154837A Expired - Lifetime US3731510A (en) 1970-06-25 1971-06-21 Cross-rolling machine having workpiece blank support

Country Status (3)

Country Link
US (1) US3731510A (enrdf_load_stackoverflow)
DE (1) DE2131300B2 (enrdf_load_stackoverflow)
GB (1) GB1300688A (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040231380A1 (en) * 2003-03-04 2004-11-25 Guenter Hofmann Process for forming a workpiece and rolling machine

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10316249B4 (de) * 2003-03-04 2010-04-15 Langenstein & Schemann Gmbh Verfahren zum Umformen eines Werkstückes und Walzmaschine

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2342917A (en) * 1942-06-06 1944-02-29 Universal Forging Co Inc Rotary forging machine
US3611769A (en) * 1969-05-06 1971-10-12 Vyzk Ustav Tvarecich Stroju Method and apparatus for shaping bar stock by rolling

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2342917A (en) * 1942-06-06 1944-02-29 Universal Forging Co Inc Rotary forging machine
US3611769A (en) * 1969-05-06 1971-10-12 Vyzk Ustav Tvarecich Stroju Method and apparatus for shaping bar stock by rolling

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040231380A1 (en) * 2003-03-04 2004-11-25 Guenter Hofmann Process for forming a workpiece and rolling machine
US20070044533A1 (en) * 2003-03-04 2007-03-01 Langenstein & Schemann Gmbh Rolling Machine
US7225656B2 (en) 2003-03-04 2007-06-05 Langenstein & Schemann, Gmbh Process for forming a workpiece and rolling machine
US7406853B2 (en) 2003-03-04 2008-08-05 Langenstein And Schemann Gmbh Rolling machine and method thereof

Also Published As

Publication number Publication date
GB1300688A (en) 1972-12-20
DE2131300A1 (de) 1971-12-30
DE2131300C3 (enrdf_load_stackoverflow) 1974-11-07
DE2131300B2 (de) 1974-04-11

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