US3487707A - Forming mill drive - Google Patents

Forming mill drive Download PDF

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Publication number
US3487707A
US3487707A US736699A US3487707DA US3487707A US 3487707 A US3487707 A US 3487707A US 736699 A US736699 A US 736699A US 3487707D A US3487707D A US 3487707DA US 3487707 A US3487707 A US 3487707A
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United States
Prior art keywords
gear
shaft
pin
roll
roll forming
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
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US736699A
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English (en)
Inventor
William A Kortan
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.)
Intercole Bolling Corp
Original Assignee
Yoder Co
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Filing date
Publication date
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Publication of US3487707A publication Critical patent/US3487707A/en
Assigned to INTERCOLE BOLLING CORPORATION, A CORP. OF OH reassignment INTERCOLE BOLLING CORPORATION, A CORP. OF OH ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: YODER COMPANY THE
Assigned to INTERCOLE ACQUISITION CORPORATION, MANUFACTURERS HANOVER TRUST COMPANY reassignment INTERCOLE ACQUISITION CORPORATION SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: INTERCOLE BOLLING CORPORATION
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H57/023—Mounting or installation of gears or shafts in the gearboxes, e.g. methods or means for assembly
    • 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
    • B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
    • B21D5/06—Bending sheet metal along straight lines, e.g. to form simple curves by drawing procedure making use of dies or forming-rollers, e.g. making profiles
    • B21D5/10—Bending sheet metal along straight lines, e.g. to form simple curves by drawing procedure making use of dies or forming-rollers, e.g. making profiles for making tubes
    • B21D5/12—Bending sheet metal along straight lines, e.g. to form simple curves by drawing procedure making use of dies or forming-rollers, e.g. making profiles for making tubes making use of forming-rollers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
    • F16H3/001—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion convertible for varying the gear ratio, e.g. for selecting one of several shafts as the input shaft
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H57/021—Shaft support structures, e.g. partition walls, bearing eyes, casing walls or covers with bearings
    • F16H57/022—Adjustment of gear shafts or bearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H57/039—Gearboxes for accommodating worm gears
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/19—Gearing
    • Y10T74/19502—Pivotally supported
    • Y10T74/19516—Spur
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/19—Gearing
    • Y10T74/19614—Disconnecting means

Definitions

  • a conventional roll forming head or stand includes a top shaft which is driven from a bottom shaft by means of a spur gear train.
  • the train includes two idler gears which are connected to the top shaft by a toggle linkage and this maintains the gears in mesh running on their designed pitch diameters regardless of the center distance of the shafts.
  • the top shaft is able to separate from the bottom shaft in a vertical direction by, for example, a distance from about 4 to about 8 inches.
  • Another principal object is the provision of a forming mill wherein it is possible to change the gear ratio of the top to bottom shaft, or completely idle the top shaft without removing or changing any components of the mill drive.
  • a further object is the provision of a mill drive of the type above described utilizing dual faced gearing with the such gear on the top shaft merely being shifted to change the gear ratio or completely idle the top shaft.
  • Still another object is the provision of a shaft to shaft forming mill drive wherein one shaft may be idled simply by rotating the position of an idle gear mounting.
  • a yet further object is the provision of a forming mill greatly facilitating the changing of roller die sets thus 3,487,707 Patented Jan. 6, 197@ making a roll forming mill more economical in a job shop operation.
  • FIG. 1 is a vertical section taken axially of the vertically spaced shafts of one form of roll .forming head or stand in accordance with the present invention
  • FIG. 2 is a vertical fragmentary transaxial section taken substantially along the line 2-2 of FIG. 1;
  • FIG. 3 is an enlarged fragmentary section of the gear drive between the top and bottom shafts taken substantially on the line 3-3 of FIG. 2;
  • FIG. 4 is a vertical section of the top shaft dual face gear taken substantially on the line 4-4 of FIG. 3;
  • FIG. 5 is an enlarged fragmentary section similar to FIG. 2 showing another form of the present invention utilizing a special mounting for the top idler gear to facilitate the idling of the top shaft;
  • FIG. 6 is an enlarged fragmentary section of the embodiment of FIG. 5 taken substantially on the line 66 thereof;
  • FIG. 7 is an enlarged end elevation of the mounting of the top idler gear as seen from the line 77 of FIG. 6.
  • FIGS. 1 and 2 there is illustrated a roll forming head or roll stand for a forming mill which includes top and bottom shafts 10 and 11 on which are mounted roller dies 12 and 13, respectively, for the roll forming of work W.
  • the work W is illustrated as a tubular product, but it will be appreciated that a wide variety of shapes may be formed by passing elongated strip material through a plurality of such roll forming heads progressively to form the strip into the desired product.
  • the roll shafts 10 and 11 are journalled at opposite ends in inboard and outboard stands 14 and 15, the former being a gear head housing.
  • the lower roll shaft 11 is journalled at 16 in the outboard stand 15 and at 17 and 18 at opposite sides of the gear head housing or inboard stand 14.
  • the lower roll shaft includes a shaft nut 19, spacers 20 and 21 for the roller dies 13, and spacers 22, 23 and 24 within the inboard gear head housing 14 which position and space spur gear 26 and worm gear 27 which are secured to such shaft 11.
  • the worm gear 27 is in mesh with worm 28 mounted on line shaft segment 29, which as seen in FIG. 2 may be secured through coupling 30 to additional shaft segments and thus drive as many roll forming heads or stands as are used to form the roll forming mill. Power is supplied to each of the roll formin heads in the mill through the line shaft.
  • the line shaft segment 29 is journalled as indicated at 31 and 32 in the gear head inboard housing 14.
  • the top roll shaft 10 is journalled at 34 and 35 in blocks 36 and 37 which are mounted in windows 38 and 39 of the outboard and inboard housings, respectively, for vertical movement.
  • Such vertical movement is obtained by rotation of nuts 41 and 42 which are in mesh with the threaded portions of rods 43 and 44, respectively, pin secured to the blocks 36 and 37. Rotation of such nuts is facilitated by the use of crank handles 45 seen more clearly in FIG. 2 and lock nuts 46 and 47 may be employed to secure the position of the shaft 10 in its desired vertical adjustment.
  • the top roll shaft includes shaft nut 49, spacers 50 and 51 for the roller die 12, and on the end projecting within the gear head or inboard housing 14, a sleeve 52 keyed to such shaft as indicated at 53. Beyond such sleeve there is provided a roller bearing 55 held in place by lock washer and nut 56 secured to the end of the shaft 10.
  • the bearing 55 journals on the end of the shaft 10 an offset toggle link 58 as seen in FIG. 3 which supports one end of pin 59.
  • the opposite end of the pin 59 is supported by toggle link 60 pivotally secured to hub 61 surrounding the sleeve 52 adjacent the block 37.
  • the pin 59 is also supported by toggle links 62 and 63, the latter being offset as indicated in FIG. 3, such links extending between the pin 59 and stub shaft 64 mounted in bosses 65 and 66 at the interior and exterior, respectively, of the inboard stand or gear housing 14.
  • a double faced idler gear 68 is journalled on the shaft 64 by means of roller bearing 69 between the toggle links 62 and 63 and the smaller face of such gear is in mesh with the spur or drive gear 26 on the bottom roll shaft 11.
  • the larger face of the double faced gear 68 is in mesh with the smaller face of double faced gear 70 journalled on pin 59 by roller bearing 71.
  • Such double faced gear is positioned between the links 62 and 63 with the former including a spacing hub 72. Power is thus transmitted from the bottom roll shaft 11 through the spur gear 26 to the bottom dual face idler gear 68 to the top dual face idler gear 70 and then to a top drive gear 74 having laterally spaced dual faces 75 and 76.
  • the distance separating the two faces 75 and 76 of the top drive gear 74 is slightly greater than the Width of the dual face idler gear 70, the two faces of which are adjacent to each other.
  • the top drive gear 74 is keyed to the top shaft, also by means of the key 53, but is free to slide on the sleeve 52.
  • the top drive gear 74 is held in any one of three selected positions as determined by locking set screw 78 into one of three annular grooves 79, 80 and 81 in the sleeve 52.
  • the inboard or gear head housing 14 is provided with a cover 84 which can readily be removed to provide access to the set screw 78 so that the gear 74 may readily be shifted to any one of the three selected positions. It is also noted that a flexible boot 85 is provided between the shaft journals 35 and 17 for the top and bottom roll shafts, respectively, to protect the interior of the gear housing from contamination.
  • the top shaft 10 is able to separate from the bottom shaft 11 in a vertical direction which may, for example, be a distance from about 4 to about 8 inches and the gears 26, 68, 70 and 74 are always held in mesh regardless of the center distance of the shafts by the pair of toggle links 58, 60 and 62, 63.
  • This toggle linkage ensures that the gears always run on their design pitch diameters. It can thus be seen that with this embodiment of the invention, it is possible to change the gear ratio of the top to bottom shaft, or completely idle the top shaft without removing or changing any components. This 18 accomplished simply by shifting the top dual faced drive gear 74.
  • FIGS. 5, 6 AND 7 While most roll formed shapes can be run with one or two gear ratios, it is frequently encountered in job shop type roll forming operations, that rolls involving many different ratios are tooled for short production runs and that if the tooling ratio does not match the built in gear ratio, it is necessary to disconnect the top roll shaft and run only with the bottom shaft driven. This, of course, can be accomplished in the embodiment of this invention illustrated in FIGS. 1 through 4 by placing the top gear in its center or neutral position. In many cases, particularly in job shops, there may not be a need for both a two speed and idle drive. A more desirable drive might be one that gives but a single gear ratio and the ability to idle the top shaft whenever needed. This type of a much more simplified drive is shown in the embodiment of FIGS. 5 through 7.
  • top roll shaft 90 is driven from the bottom roll shaft by a spur gear train which includes a gear 92 mounted on the bottom shaft in mesh with a bottom idler gear 93 journalled on stub shaft 94 by means of the roller bearing 95 seen in FIG. 6.
  • a pair of outwardly offset toggle links 96 and 97 extend from the stub shaft 94 to toggle pin 98.
  • a top idler gear 99 is journalled by means of roller bearing 100 on the circular center portion 101 of the toggle pin 98.
  • Toggle links 102 and 103 extend from the center portion 101 of the pin 98 to the top roll shaft 90.
  • a gear 105 is keyed to such shaft and is in mesh with the top idler gear 99.
  • the toggle pin 98 includes two circular end portions 108 and 109 concentric with each other journalling the pin for rotation in the toggle links 96 and 97. These end portions 108 and 109 are, however, eccentric with respect to the center portion 101 of the pin to which the links 102 and 103 are connected.
  • the idler gear 99 as well as the links 102 and 103 are mounted concentrically of the center portion 101 of the pin. Therefore, any rotation of the pin will not disturb the pitch line center distance between the top idler gear 99 and the top drive gear 105. As seen in FIG.
  • the distance between the center A of the concentric circular portions 108 and 109 and the center B of the center eccentric circular portion 101 may, for example, be a distance of approximately & of an inch which is equivalent to slightly 'more than twice the addendum of the spur gear tooth form.
  • an improved roll forming head which includes a toggle linkage gear train drivingly interconnecting the top and bottom shafts whereby the speed of the top shaft may conveniently be changed or the drive thereto disconnected.
  • a roll forming head comprising vertically spaced roller die shafts, means vertically to adjust the position of the top shaft, and a toggle linkage gear train drivingly interconnecting said shafts including mean operative to disconnect said top shaft.
  • a roll forming head as set forth in claim 2 including means to rotate and contra-rotate said pin 180. to engage and disengage adjacent gears in said train.
  • a roll forming head as set forth in claim 3 including opposite flats on one end of said pin, and a retractible keeper plate bearing against said flats to maintain said pin in its selected position.
  • a roll forming head as set forth in claim 2 wherein said gear train includes a pair of toggle links pivoted at one end to said top shaft, a drive gear on said top shaft therebetween, said eccentric pin extending between the other ends of said links and having journalled thereon an idler gear in mesh with said drive gear, said links and idler gear being mounted on a circular portion of said pin having one center, said pin being supported at another center thereof with respect to another gear in said train, whereby said idler gear and said other gear may be moved toward and away from each other by rotation of said pin.
  • a roll forming head as set forth in claim 5 including an offset shaft parallel to said bottom shaft on which said other gear is journalled, a drive gear on said bottom shaft in mesh with said other gear, and a second pair of toggle links extending from said offset shaft to said eccentric pin, said second pair of toggle links being pivoted to said pin at said other center thereof.
  • a roll forming head as set forth in claim 8 including a sleeve on said top shaft on which said gear on said shaft is supported for sliding movement, and means interconnecting said gear and sleeve properly to position said gear with respect to said adjacent gear to change the speed of said top shaft or to disconnect said top shaft from said gear train.
  • a roll forming head as set forth in claim 11 including a drive gear on said bottom shaft, an idler gear journalled on said offset shaft and in mesh therewith, a pin supported by said toggle links between said offset shaft and said top shaft, said adjacent gear being journalled on said pin and in mesh with the idler gear on said offset shaft and the gear on said top shaft.
  • a roll forming head including top and bottom roller die shafts journalled between inboard and outboard stands, means to raise and lower said top shaft with respect to said bottom shaft, said top shaft being driven from said bottom shaft through a toggle linkage gear train in said inboard stand, and means operative axially to shift one of the gears of said train to change the speed of said top shaft with respect to said bottom shaft or to disconnect the same.
  • a roll forming head as set forth in claim 17 including a sleeve on said top shaft supporting said one of said gears thereon, and means interconnecting said sleeve and one gear to position said one gear in three selected positions, the middle position disconnecting said top and bottom shafts.
  • a roll forming head as set forth in claim 18 wherein said means interconnecting said sleeve and one gear comprises annular slots in said sleeve and a set screw in said one gear.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Gear Transmission (AREA)
  • Forging (AREA)
US736699A 1968-06-13 1968-06-13 Forming mill drive Expired - Lifetime US3487707A (en)

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US73669968A 1968-06-13 1968-06-13

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US (1) US3487707A (enrdf_load_stackoverflow)
FR (1) FR2010849A1 (enrdf_load_stackoverflow)
GB (1) GB1221175A (enrdf_load_stackoverflow)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3798949A (en) * 1972-02-28 1974-03-26 R Tucker Multi-spindle rolling machine
US4862766A (en) * 1986-10-01 1989-09-05 Zinser Textilemaschinen Gmbh Device for driving a can plate of a spinning preparation machine
US5148960A (en) * 1992-02-03 1992-09-22 Abbey Etna Machine Company Rotary seam guide
US6070482A (en) * 1997-04-21 2000-06-06 Nidec Copal Corporation Gear module
CN101905260A (zh) * 2010-07-20 2010-12-08 中山市胜龙锻压机械有限公司 一种闭式冲床的齿轮传动装置
CN105889423A (zh) * 2015-01-16 2016-08-24 贵州航空发动机研究所 一种凑配齿轮的安装孔距及偏心轴结构
CN109047401A (zh) * 2018-06-08 2018-12-21 江苏中海重型机床有限公司 一种大吨位大跨度数控成套制管机
CN112275831A (zh) * 2020-12-30 2021-01-29 广东顺彩达遮阳科技有限公司 碳钢波纹管拉管机
CN113182394A (zh) * 2021-04-30 2021-07-30 张嘉家 一种高效率高自动化程度的冷弯成型机

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2499881A1 (fr) * 1981-02-19 1982-08-20 Despland Jacques Perfectionnements apportes aux machines a profiler

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1769957A (en) * 1928-04-28 1930-07-08 Walter E Krotee Gearing
US2162979A (en) * 1936-05-05 1939-06-20 Howard W Simpson Power take-off
US2594692A (en) * 1951-09-29 1952-04-29 J B Ehrsam & Sons Mfg Co Synchronizing means for rotors
US2640371A (en) * 1948-01-03 1953-06-02 J B Ehrsam & Sons Mfg Co Drive for adjustable-axis mating, rotors

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1769957A (en) * 1928-04-28 1930-07-08 Walter E Krotee Gearing
US2162979A (en) * 1936-05-05 1939-06-20 Howard W Simpson Power take-off
US2640371A (en) * 1948-01-03 1953-06-02 J B Ehrsam & Sons Mfg Co Drive for adjustable-axis mating, rotors
US2594692A (en) * 1951-09-29 1952-04-29 J B Ehrsam & Sons Mfg Co Synchronizing means for rotors

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3798949A (en) * 1972-02-28 1974-03-26 R Tucker Multi-spindle rolling machine
US4862766A (en) * 1986-10-01 1989-09-05 Zinser Textilemaschinen Gmbh Device for driving a can plate of a spinning preparation machine
US5148960A (en) * 1992-02-03 1992-09-22 Abbey Etna Machine Company Rotary seam guide
US6070482A (en) * 1997-04-21 2000-06-06 Nidec Copal Corporation Gear module
US6289758B1 (en) * 1997-04-21 2001-09-18 Nidec Copal Corporation Gear module
CN101905260A (zh) * 2010-07-20 2010-12-08 中山市胜龙锻压机械有限公司 一种闭式冲床的齿轮传动装置
CN105889423A (zh) * 2015-01-16 2016-08-24 贵州航空发动机研究所 一种凑配齿轮的安装孔距及偏心轴结构
CN109047401A (zh) * 2018-06-08 2018-12-21 江苏中海重型机床有限公司 一种大吨位大跨度数控成套制管机
CN112275831A (zh) * 2020-12-30 2021-01-29 广东顺彩达遮阳科技有限公司 碳钢波纹管拉管机
CN113182394A (zh) * 2021-04-30 2021-07-30 张嘉家 一种高效率高自动化程度的冷弯成型机

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Publication number Publication date
GB1221175A (en) 1971-02-03
FR2010849A1 (enrdf_load_stackoverflow) 1970-02-20

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AS Assignment

Owner name: INTERCOLE BOLLING CORPORATION, A CORP. OF OH, OHIO

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:YODER COMPANY THE;REEL/FRAME:003953/0461

Effective date: 19811029

Owner name: INTERCOLE BOLLING CORPORATION, 5500 WALWORTH AVE.,

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:YODER COMPANY THE;REEL/FRAME:003953/0461

Effective date: 19811029

AS Assignment

Owner name: MANUFACTURERS HANOVER TRUST COMPANY

Free format text: SECURITY INTEREST;ASSIGNOR:INTERCOLE BOLLING CORPORATION;REEL/FRAME:004406/0261

Effective date: 19850416

Owner name: INTERCOLE ACQUISITION CORPORATION

Free format text: SECURITY INTEREST;ASSIGNOR:INTERCOLE BOLLING CORPORATION;REEL/FRAME:004406/0261

Effective date: 19850416