US3890821A - Cold pilger rolling mill and method for the rolling of tubes - Google Patents

Cold pilger rolling mill and method for the rolling of tubes Download PDF

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Publication number
US3890821A
US3890821A US472250A US47225074A US3890821A US 3890821 A US3890821 A US 3890821A US 472250 A US472250 A US 472250A US 47225074 A US47225074 A US 47225074A US 3890821 A US3890821 A US 3890821A
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United States
Prior art keywords
travel
grooved rolls
rolled material
outgoing
rolls
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Expired - Lifetime
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US472250A
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English (en)
Inventor
Josef Gerretz
Fritz Zeunert
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Wean Inc
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Wean United Inc
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Assigned to PITTSBURGH NATIONAL BANK reassignment PITTSBURGH NATIONAL BANK SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: WEAN UNITED, INC., A CORP.OF OH
Assigned to PITTSBURGH NATIONAL BANK reassignment PITTSBURGH NATIONAL BANK SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: WEAN UNITED, INC., A CORP. OH.
Assigned to PITTSBURGH NATIONAL BANK reassignment PITTSBURGH NATIONAL BANK RELEASED BY SECURED PARTY (SEE DOCUMENT FOR DETAILS). RECORDED ON REEL 4792 Assignors: WEAN UNITED INC./NOW WEAN INCORPORATED PA CORP.
Anticipated expiration legal-status Critical
Assigned to WEAN INCORPORATED reassignment WEAN INCORPORATED MERGER (SEE DOCUMENT FOR DETAILS). Assignors: WEAN UNITED, INC.
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B21/00—Pilgrim-step tube-rolling, i.e. pilger mills
    • B21B21/005—Pilgrim-step tube-rolling, i.e. pilger mills with reciprocating stand, e.g. driving the stand

Definitions

  • the disclosure of this invention relates to a cold pilger rolling mill for the rolling of tubes, having a reciprocating stand and grooved rolls mounted therein, and a device for advancing and/or turning the rolled material, and torque and mass compensation; the grooved rolls being in working contact with the rolled material at the outgoing travel and at the return travel, and releasing the rolled material for advance and/or turning before the outgoing travel and before the return travel.
  • the invention relates to a cold pilger rolling mill, for example, as described in German Published Specification No. 1,602,036, as provided with torque and/or mass compensation.
  • German Published Specification No. 1,602,036 indicates that the economic aspect of a cold pilger rolling mill can be used to the best possible extent if it is insured that the'rolls release the tube at the two ends of the path of movement of the said rolls, and that both an axial advancing movement and also a partial rotation of the tube are brought about at the two ends of the path of travel. This confirms a discovery explained in German Pat. No. 265,523 to the effect that after each travel it is possible to turn out in one case and back in the other so that each travel is a working travel.
  • the invention has as its object to provide time for changing at the run-out in the case of more particularly high-speed cold pilger machines, without the rolling movement required for this purpose being at the expense of the working groove length, with the same diameter of grooved rolls, or resulting in an increase in the grooved roll diameter with the same working groove length.
  • an increase in output which is possible by changing at the run-in and also at the run-out is canceled out again, at least, partly by the reduction in working groove length; whereas, in the second case, an increase in the grooved roll diameter would result in a substantial increase in the moved masses, since the grooved roll diameter ,has a decisive influence on the size and weight of the cold pilger machine.
  • the grooved rolls are ring grooved rolls known per strig cold pilger operations and that an arrangement is provided by,means of which the rotation angle of the ring grooved rolls .during an out and back travel is greater than 330. In a preferred embodiment the rotation angle of the ring grooved rolls is greater than 360.
  • the cold pilgerrolling mill according to the invention can also be used for material qualities which are difficult to roll or, for example, for the production of ball bearing tubes whereit is important to have narrow diameter and wall thickness tolerances, in such a manner that there is both turning and advancing of the roller material before the outgoing travel and only turning before the return'travel.
  • FIGS. 1a to 10 show three positions of the ring grooved'rolls during an outgoing travel
  • FIG. 2 shows a side view of a cold pilger rolling mill
  • FIG. 3 shows the roll stand as viewed in the direction of the rolling axis.
  • FIGS. 1a, 1b and 1c show diagrammatically the progress of the rolling operation during an outgoing travel, and in FIG. 1a two ring grooved rolls are at the beginning of the outgoing travel.
  • the ring grooved rolls 1 then move from the position shown in FIG. la in the direction towards the position shown in FIG. 1b and after a partial rotation through the distance a come into locking contact with the rolled material, a tube billet 3, in which a mandrel 2 is arranged in stationary manner.
  • Working contact with the tube 3 is maintained over a partial angle b beyond the position shown in FIG. 1b.
  • the ring groove rolls 1 by suitable construction of the groove 6 in the said rolls release the tube 3 and move further by a further partial angle 0, until they come to a standstill as regards their rotational movement and also, of course, as regards their reciprocating movement.
  • This standstill is achieved in the position shown in FIG. 10 and is marked on the ring grooved rolls 1 as A. T.
  • the ring grooved rolls 1 then move with rotation towards the left until the initial position shown in FIG. 1a is reached at the run-in dead center ET. From the run-in dead center E.T. to the run-out dead center A.T., the ring grooved rolls pass through an angle of rotation composed of the partial angles a, b and c in the illustrated preferred example more than 360.
  • the partial angles a, b and 0 correspond in their development to the distances a, b and c, which together give the stand travel H.
  • FIGS. la, lb and 10 show that the ring grooved rolls 1 consist in known manner of a basic body 4 and rolling rings 5 mounted thereon, the groove 6 being formed in the rolling rings 5.
  • 7 is the pitch circle diameter of the driving pinion 21 shown in diagrammatic manner in FIG. 3.
  • FIG. 2 shows a side view of all the important elements of a cold pilger rolling mill having a driving motor 9 which by way of a driving belt 10 drives a driving pulley 11 of a crank drive 8.
  • the crank drive 8 has a crank radius r. Attached to the crank shaft are connecting rods 12 which connect the crank drive 8 with a reciprocating stand 16 and be means of a further rod 13 additional compensating weights 14. Further compensating weights 15 are connected with the crank drive 8 also. 17 indicates a turning and advancing arrangement.
  • An arrow 18 indicates the direction of advance of the rolled material.
  • crank radius r is greater than the product d/Z' 11' wherein d is the diameter of the pitch circle 7 of the driving pinion 21 which is shown in diagrammatic manner in FIG. 3.
  • FIG. 3 also shows the shafts of the ring grooved rolls, the stand bed 19 and stationary racks 22 with which the driving pinions 21 are in engagement.
  • Cold pilger rolling mill for the rolling of tubes, having a reciprocating stand and grooved rolls mounted therein, and a device for advancing and/or turning the rolled material, and having a torque and mass compensation arrangement, the grooved rolls being in working contact with the rolled material at the outgoing travel and at the return travel and releasing the rolled material for advancing and/or for turning before the outgoing travel and before the return travel, characterized in that the grooved rolls are ring grooved rolls in which a portion of their circumferences comprises cooperative tapered working groove portions, and said mill includes means for causing a rotation angle of said ring grooved rolls during each of an outgoing and return travel to be greater than 330, and wherein each angle of rotation of the ring grooved roll is smaller than the angle defined by said working groove portion plus twice the difference between this working groove portion and 360.
  • Cold pilger rolling mill for the rolling tubes having a reciprocating stand and grooved rolls mounted therein, and a device for advancing and/or turning the rolled material, and having a torque and mass compensation arrangement, the grooved rolls being in working contact with the rolled material at the outgoing travel and at the return travel and releasing the rolled material for advancing and/or for turning before the outgoing travel and before the return travel, characterized in that the grooved rolls are ring grooved rolls in which a portion of their circumferences comprises cooperative tapered working groove portions, and said mill includes means for causing the rotation angle of said ring grooved rolls during an outgoing and return travel to be greater than 300, and wherein the stand travel is greater than the pitch circle circumference of driving pinions of said means for causing rotation of said rolls which engages with stationary racks of a stand bed and means for connecting said driving pinions to shafts of said ring grooved rolls.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
  • Metal Rolling (AREA)
US472250A 1973-06-07 1974-05-22 Cold pilger rolling mill and method for the rolling of tubes Expired - Lifetime US3890821A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2329526A DE2329526A1 (de) 1973-06-07 1973-06-07 Kaltpilgerwalzwerk zum rohrwalzen

Publications (1)

Publication Number Publication Date
US3890821A true US3890821A (en) 1975-06-24

Family

ID=5883571

Family Applications (1)

Application Number Title Priority Date Filing Date
US472250A Expired - Lifetime US3890821A (en) 1973-06-07 1974-05-22 Cold pilger rolling mill and method for the rolling of tubes

Country Status (8)

Country Link
US (1) US3890821A (fr)
JP (1) JPS5021969A (fr)
CA (1) CA998860A (fr)
DD (1) DD110616A5 (fr)
DE (1) DE2329526A1 (fr)
FR (1) FR2232372B1 (fr)
GB (1) GB1471918A (fr)
IT (1) IT1012496B (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4052898A (en) * 1976-09-13 1977-10-11 Wean United, Inc. Crank drive system for cold pilger mills drive or the like
US4858458A (en) * 1987-02-23 1989-08-22 Mannesmann Aktiengesellschaft Drive for a pilger cold-rolling mill with balancing of masses and moments
US5076088A (en) * 1986-04-15 1991-12-31 Mannesmann Ag Drive for a pilger cold rolling mill
US5125253A (en) * 1987-03-26 1992-06-30 Mannesmann Ag Cold pilgrim rolling
US20090145193A1 (en) * 2007-12-05 2009-06-11 Sumitomo Metal Industries, Ltd. Method for producing ultra thin wall metallic tube by cold rolling method
US20120036911A1 (en) * 2009-04-03 2012-02-16 Sumitomo Metal Industries, Ltd. Method for producing ultrathin-wall seamless metal tube by cold rolling method
US20120079864A1 (en) * 2010-09-30 2012-04-05 Sun Doo Kim Pilger die and pilger mandrel for manufacturing dashpot tube for nuclear fuel assembly, method of manufacturing the pilger die and the pilger mandrel, and dashpot tube for nuclear fuel assembly
RU2632347C2 (ru) * 2016-03-21 2017-10-04 Открытое акционерное общество "Электростальский завод тяжелого машиностроения" Стан холодной прокатки труб
CN115318828A (zh) * 2022-09-02 2022-11-11 张家港华裕有色金属材料有限公司 一种用于冷轧金属管的轧制方法

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2403686C2 (de) * 1974-01-24 1983-05-19 Mannesmann AG, 4000 Düsseldorf Verfahren zum Herstellen von Metallrohren aus gut verformbaren Werkstoffen, insbesondere aus NE-Metallen, durch Kaltpilgern
JPS5412256B2 (fr) * 1975-06-10 1979-05-22
DE2852102A1 (de) * 1978-11-30 1980-06-04 Mannesmann Ag Verfahren zum reduzieren von rohren
DE2934391C2 (de) * 1979-08-23 1986-11-27 Mannesmann AG, 4000 Düsseldorf Verfahren zum Kaltwalzen von Rohren
DE3107824C2 (de) * 1981-02-24 1985-11-14 Mannesmann AG, 4000 Düsseldorf Verfahren zum Walzen von Rohren
DE3708943C1 (de) * 1987-03-18 1987-12-03 Mannesmann Ag Verfahren sowie Dreh- und Vorschubantrieb zur Durchfuehrung des Verfahrens zum Walzen von Rohren oder Stangen nach einem Pilgerschrittverfahren
CN114799107B (zh) * 2022-04-14 2024-06-21 河钢乐亭钢铁有限公司 一种提高扇形段辊缝精度的拉杆补偿控制方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3030835A (en) * 1958-06-06 1962-04-24 Blaw Knox Co Tube rolling machine
US3211027A (en) * 1958-06-06 1965-10-12 Blaw Knox Co Tube rolling method
US3584489A (en) * 1967-12-20 1971-06-15 Vallourec Lorraine Escaut Rolling mill
US3611775A (en) * 1969-07-29 1971-10-12 Superior Tube Co Tube rolling mill with a tapered mandrel

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3030835A (en) * 1958-06-06 1962-04-24 Blaw Knox Co Tube rolling machine
US3211027A (en) * 1958-06-06 1965-10-12 Blaw Knox Co Tube rolling method
US3584489A (en) * 1967-12-20 1971-06-15 Vallourec Lorraine Escaut Rolling mill
US3611775A (en) * 1969-07-29 1971-10-12 Superior Tube Co Tube rolling mill with a tapered mandrel

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4052898A (en) * 1976-09-13 1977-10-11 Wean United, Inc. Crank drive system for cold pilger mills drive or the like
US5076088A (en) * 1986-04-15 1991-12-31 Mannesmann Ag Drive for a pilger cold rolling mill
US4858458A (en) * 1987-02-23 1989-08-22 Mannesmann Aktiengesellschaft Drive for a pilger cold-rolling mill with balancing of masses and moments
US5125253A (en) * 1987-03-26 1992-06-30 Mannesmann Ag Cold pilgrim rolling
CN101687232B (zh) * 2007-12-05 2013-01-23 住友金属工业株式会社 通过冷轧法进行的超薄壁金属管的制造方法
US7992417B2 (en) * 2007-12-05 2011-08-09 Sumitomo Metal Industries, Ltd. Method for producing ultra thin wall metallic tube by cold rolling method
US20090145193A1 (en) * 2007-12-05 2009-06-11 Sumitomo Metal Industries, Ltd. Method for producing ultra thin wall metallic tube by cold rolling method
US20120036911A1 (en) * 2009-04-03 2012-02-16 Sumitomo Metal Industries, Ltd. Method for producing ultrathin-wall seamless metal tube by cold rolling method
CN102365136A (zh) * 2009-04-03 2012-02-29 住友金属工业株式会社 利用冷轧法制造超薄壁无缝金属管的制造方法
US8528378B2 (en) * 2009-04-03 2013-09-10 Nippon Steel & Sumitomo Metal Corporation Method for producing ultrathin-wall seamless metal tube by cold rolling method
US20120079864A1 (en) * 2010-09-30 2012-04-05 Sun Doo Kim Pilger die and pilger mandrel for manufacturing dashpot tube for nuclear fuel assembly, method of manufacturing the pilger die and the pilger mandrel, and dashpot tube for nuclear fuel assembly
US8756966B2 (en) * 2010-09-30 2014-06-24 Kepco Nuclear Fuel Co., Ltd. Pilger die and pilger mandrel for manufacturing dashpot tube for nuclear fuel assembly and method of manufacturing the pilger die and the pilger mandrel
RU2632347C2 (ru) * 2016-03-21 2017-10-04 Открытое акционерное общество "Электростальский завод тяжелого машиностроения" Стан холодной прокатки труб
CN115318828A (zh) * 2022-09-02 2022-11-11 张家港华裕有色金属材料有限公司 一种用于冷轧金属管的轧制方法
CN115318828B (zh) * 2022-09-02 2023-10-27 张家港华裕有色金属材料有限公司 一种用于冷轧金属管的轧制方法

Also Published As

Publication number Publication date
CA998860A (en) 1976-10-26
DD110616A5 (fr) 1975-01-05
GB1471918A (en) 1977-04-27
DE2329526A1 (de) 1975-03-13
IT1012496B (it) 1977-03-10
FR2232372B1 (fr) 1978-01-13
JPS5021969A (fr) 1975-03-08
FR2232372A1 (fr) 1975-01-03

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AS Assignment

Owner name: PITTSBURGH NATIONAL BANK

Free format text: SECURITY INTEREST;ASSIGNOR:WEAN UNITED, INC., A CORP.OF OH;REEL/FRAME:004458/0765

Effective date: 19850610

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Owner name: PITTSBURGH NATIONAL BANK

Free format text: SECURITY INTEREST;ASSIGNOR:WEAN UNITED, INC., A CORP. OH.;REEL/FRAME:004792/0307

Effective date: 19860630

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Effective date: 19860630

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Free format text: RELEASED BY SECURED PARTY;ASSIGNOR:WEAN UNITED INC./NOW WEAN INCORPORATED PA CORP.;REEL/FRAME:005004/0152

Effective date: 19881013

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Owner name: WEAN INCORPORATED, PENNSYLVANIA

Free format text: MERGER;ASSIGNOR:WEAN UNITED, INC.;REEL/FRAME:006723/0152

Effective date: 19870916