US3621693A - Straightening machine for structural workpieces - Google Patents
Straightening machine for structural workpieces Download PDFInfo
- Publication number
- US3621693A US3621693A US848548A US3621693DA US3621693A US 3621693 A US3621693 A US 3621693A US 848548 A US848548 A US 848548A US 3621693D A US3621693D A US 3621693DA US 3621693 A US3621693 A US 3621693A
- Authority
- US
- United States
- Prior art keywords
- assemblies
- frame
- roller assemblies
- roller
- assembly
- 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
Links
- 230000007246 mechanism Effects 0.000 abstract description 6
- 230000000712 assembly Effects 0.000 description 45
- 238000000429 assembly Methods 0.000 description 45
- 238000010276 construction Methods 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Images
Classifications
-
- 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
- B21D3/00—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts
- B21D3/02—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts by rollers
- B21D3/05—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts by rollers arranged on axes rectangular to the path of the work
Definitions
- the disclosure relates to a straightening machine wherein there is provided a number of independent roller assemblies so arranged that they form sets of three rollers between which the product to be straightened is fed.
- Each roller assembly is provided with a frame and with reference to the upper assemblies, there is provided a gear driving arrangement for the rollers thereof.
- Each gear driving arrangement is constructed as a unitary assembly adapted to be quickly removed from and inserted into the frames as a unit.
- Positioning means are provided for the individual roller assemblies, which means allow the assemblies to be moved parallel to the pass line without disturbing their predetermined spaced relationship.
- a locking means for maintaining the roller assemblies in their predetermined spaced relationship after it has been established.
- a pressure take-up mechanism associated with each frame of the upper roller assemblies for eliminating any clearance between the frames and the housing.
- the present invention provides employment of individual roller assemblies, each of which is adapted to be adjustable relative to a housing and to each other by a mechanism synchronized so as to maintain a predetermined relationship between the rollers.
- a further object of the present invention is to provide in connection with the roller assembly a unitary driving assembly designed to be quickly removable and replaceable as a unit to and from the housing.
- FIG. 1 is a sectional view taken on lines 11 of FIG. 2;
- FIG. 2 is a sectional view taken on lines 2-2 of FIG. 3;
- FIG. 3 is a sectional view taken on lines 3--3 of FIG. 1;
- FIG. 4 is a sectional view taken on lines 44 of FIG. 3.
- the straightener comprises two spaced pairs of upright end members 11 forming the posts of a rectangular box-like structure. Between each upright member there are provided upper and lower longitudinal separators 13 and 14. As shown in FIG. 1, the upright members 11 extend the full width of the straightener between which the separators '13 and 14 extend.
- FIG. 2 there are provided three roller assemblies 15, 16 and 17 which are carried by the lower separators 14 and in which construction the outer assemblies 15 and 17 are adapted to move longitudinally relative to the separators 14.
- the three lower roller assemblies 15, 16 and 17 are adjustable vertically by a worm and wheel assembly 18, 19 and 21 of a well-known construction.
- the mechanism for moving the outer lower roller 15 and 17 longitudinally will be discussed later after the top roller assemblies have been described.
- the lower roller assemblies in the straightener machine illustrated are non-driven.
- roller assemblies 23, 24, 25 and 26 each of which is mounted on the upper separators 13 in a manner that allows them to slide longitudinally relative to the separators.
- the roller assemblies 23-26 are arranged to straddle the upper separators 13 wherein the lower ends of the roller assemblies extend downwardly towards the pass line of the straightener and assure a cooperative relationship with the lower straightener roller assemblies 15, 16 and 17.
- the roller assemblies are equally spaced with reference to the other roller assemblies of its set and only the lower center roller 16 is not adjustable longitudinally.
- each of the upper roller assemblies which are the only rollers driven in the disclosed straightener.
- the separators 1-3 are adapted to carry outer frames 28 provided for each roller assembly. Since each of the upper roller assemblies is identical, it is deemed necessary to described only one of them.
- the weight of the frame 28 is actually taken at the front of the machine through a block 29 formed as an integral part of the frame 28 and to which is secured a housing of a piston cylinder assembly 31, the lower end of which is mounted and engages with the front separator 13.
- the front lower portion of the frame 28 is provided with a bore 32 which receives an arbor 33 of the straightener roller assembly and that between the outer portion of the bore 32 there are provided two bushings 34.
- a similar bushing 35 is provided at the top in addition to two vertical bushings 36 adjacent the cylinder housings 31 which bushings allow the frame 28 to move relative to the front separator 13.
- the frame is allowed to move relative to the back separator 13 which supports its weight by virtue of two horizontal bushings 38 and two vertical bushings 3 9.
- the portion 41 of the frame shown at the top of FIG. 3 is formed as an integral part of the frame 28 and moves with the frame relative to the back separator '13. This portion, as noted, serves to support the electrical motor 42, the function of which will be explained later.
- the frame 28 is provided with an opening 43 for receiving a triple reduction gear train employed to drive the arbor 33 and, hence, one of the straightening rollers.
- the frame 28 is provided with vertical blocks 44 and 45 which extends a substantial distance between the opposite ends of the frame.
- the gear frame 46 comprises an upper cap 47 which rotatably receives a motor pinion 48 which meshes with and drives a first spur gear49 mounted on a common shaft with a pinion 51, the shaft being identified as 2 and rotatably received in the gear frame.
- a second set of gears 53 and 54 similarly rotatably mounted in the gear frame 46, the pinion -54 driving a gear 55 arranged beneath it and rotatably mounted in the gear frame.
- the gear 5 5 drives a gear 57 mounted on the arbor 3 3 and by virtue of which the straightening roller secured to the arbor is driven.
- the cap 47 is provided with hooks 58 and that the cap 47 is secured to the blocks 44 and 45 by virtue of bolt and nut assemblies 61 and 62; the bolts, of course being secured to the blocks so that upon removal of the nuts a crane or other suitable means connected to the hooks 58 may lift the entire gear assembly as a unit from the frame 28.
- the coupling 63 shown in FIG. 3 must be moved to the phantom position so as to free the drive shaft of the pinion 48 and disconnect the shaft from the motor 42 which is provided to furnish the driving force for the arbor 33 through the reduction gearing already described.
- gear assembly 64 provided for adjusting longitudinally the arbors 33.
- gear assembly 65 is provided for the same purpose as the lower roller of the set illustrated in FIG. 3.
- a piston assem bly 66 is provided in the cylinder 31 already described, the cylinder being a single acting cylinder adapted to receive fluid under pressure and exert a force sufficient to take up any clearances between the front separator 13 and the frame 28.
- the function of the piston cylinder assembly is to place the individual rollers in a condition so that they can be quickly moved relative to the separators 13, but just as quickly brought into a rigid construction so as to eliminate any clearance between the supports and frames during the straightening operation and when the machine is under the full working load.
- rollers of the two outer sets of rollers as ivewed in FIG. 2 have an equality of spacing relative to each other, which spacing is desired to be maintained even though the rollers may be moved longitudinally to more effectively straighten different size workpieces.
- innermost upper rollers 24 and 25 it will be noted from FIG. 1 that there is provided for each such roller assembly parallel bars 6-8, and for the outermost roller assemblies 23 and 26, bars 69. These numbers are applied to both the left and right-hand roll assemblies as one views FIG. 1.
- the ends of the bars are associated with a rack assembly, which, in referring to the set of bars 68, are connected to a rack assembly 71, whereas, the bars 69 are connected to a rack assembly 72.
- the rack assemblies are joined by equalizing shafts 73 and 74, respectively, and they are each guided by a pair of guide rolls, one roll being shown more clearly in FIG. 2 as 75.
- the pinions for the rack assemblies 71 and 72 are mounted in the same longitudinal plane, one of which is noted in FIG. 2 at 76-.
- Each pinion of the rack assemblies is driven by a worm-wheel jack unit, i.e., pinion of the rack 71 by a unit 77 and the rack 72 by a unit 78.
- FIG. 1 shows the jack set for the rack 72 in which it will be noted that it consists of a threaded shaft 79 connected to the equalized bar 74, a portion of which is seen at the left side of the jack 78. Both jacks are driven by a common shaft 81 which is driven, in turn, by a motor 82 mounted on the vertical uprights 11 of the housing.
- a similar rack-bar arrangement is provided for the outer lower roller assemblies 15 and 17 and, in describing the arrangement on one side of the machine, there is provided a pair of bars 83 that connect the roller assembly 15 to a rack 84, the rack being connected together by an equalizing bar 85 to be driven by a pair of pinions 86, the pinions being driven by a worm-"wheel jack assembly 87 which is being driven by the motor 82 by an extension of the shaft 81.
- the selection of the ratios of the jacks 77, 78 and 87 is such that the relative displacement of the various roller assemblies that make up the two outer sets is maintained at the equal spacing relationship. Upon the operation of the motor 82 the spacing of rollers is adjusted while preserving their equal distances.
- each roller assembly in the vicinity of the passline is provided with racks 88, 89 and 91.
- the rack for the lower roller identified as 91, is large enough to engage at the same time the upper racks 88 and 89.
- the lower rack 91 as shown in FIG. 3, is connected to a piston cylinder assembly 92 which moves the rack 91 towards and away from the other two racks 88 and 89, the rack 91 being mounted slidably on the non-rotational portion of the arbor housing of the lower roller 15. In this manner, once the positioning of the rollers has been accomplished, they may be conveniently and quickly locked by operation of the piston cylinder assembly 92.
- a housing including a support member extending in a direction parallel to the path of travel of the rolled sections when brought to the machine
- roller assemblies comprising a frame for rotatably supporting said one roller assembly in an operative position with respect to at least one other straightener roller assembly, said frame having an opening that forms outer and inner extensions relative to said path of travel, said inner extension arranged to rotatably support said one roller assembly and said outer extension arranged adjacent a portion of said support member, and
- selectively operable fluid force exerting means arranged between said outer extension of said frame and said adjacent portion of said support member for securing said frame to said support member so that in one case the frame is fixedly held relative to said support member and in another case the frame is allowed to move relative to the support member in the direction of said path of travel.
- said one roller assembly having a rotatable arbor
- said positioning means comprising a jack for each adjustable roller assembly
- said jacks having different gear ratios so that when operating they displace the adjustable roller assemblies in a manner to maintain their equidistance relationships with the other roller assemblies.
- said third rack being long enough to simultaneously engage the racks of said adjustable roller assemblies
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Straightening Metal Sheet-Like Bodies (AREA)
Abstract
Description
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US84854869A | 1969-08-08 | 1969-08-08 |
Publications (1)
Publication Number | Publication Date |
---|---|
US3621693A true US3621693A (en) | 1971-11-23 |
Family
ID=25303593
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US848548A Expired - Lifetime US3621693A (en) | 1969-08-08 | 1969-08-08 | Straightening machine for structural workpieces |
Country Status (5)
Country | Link |
---|---|
US (1) | US3621693A (en) |
JP (1) | JPS4829993B1 (en) |
CA (1) | CA931863A (en) |
DE (1) | DE2038114A1 (en) |
GB (1) | GB1309115A (en) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3765210A (en) * | 1972-02-22 | 1973-10-16 | Mesta Machine Co | Frameless roll leveler, straightener and the like |
US3834203A (en) * | 1972-11-30 | 1974-09-10 | Sutton Eng Co | Straightening machine |
FR2335279A1 (en) * | 1975-12-18 | 1977-07-15 | Moeller & Neumann Gmbh | ROLLER DRESSER, ESPECIALLY HEAVY ROLLER DRESSER, WITH TRACTION ELEMENTS ARRANGED BETWEEN THE HORIZONTAL BEAMS OF THE DRESSER FRAME |
US4111025A (en) * | 1973-04-04 | 1978-09-05 | Nippon Steel Corporation | Straightening mill for section steel |
US4488423A (en) * | 1980-12-08 | 1984-12-18 | Bertolette Machines, Inc. | Straightening machine |
US4594872A (en) * | 1984-10-30 | 1986-06-17 | Nordlof Richard D | Apparatus for straightening strip material |
DE4408907A1 (en) * | 1994-03-16 | 1995-09-21 | Hoestemberghe & Kluetsch Ferti | Device for straightening hot rolled profiles or bars |
US20070062239A1 (en) * | 2005-09-20 | 2007-03-22 | Shinichi Taguchi | Roll straightener |
CN102962300A (en) * | 2012-12-03 | 2013-03-13 | 太原重工股份有限公司 | Hydraulic locking device |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2855014A1 (en) * | 1978-12-20 | 1980-07-03 | Kieserling & Albrecht | LEVELING MACHINE |
-
1969
- 1969-08-08 US US848548A patent/US3621693A/en not_active Expired - Lifetime
-
1970
- 1970-07-29 CA CA089427A patent/CA931863A/en not_active Expired
- 1970-07-31 DE DE19702038114 patent/DE2038114A1/en active Pending
- 1970-08-07 GB GB3818970A patent/GB1309115A/en not_active Expired
- 1970-08-07 JP JP45068727A patent/JPS4829993B1/ja active Pending
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3765210A (en) * | 1972-02-22 | 1973-10-16 | Mesta Machine Co | Frameless roll leveler, straightener and the like |
US3834203A (en) * | 1972-11-30 | 1974-09-10 | Sutton Eng Co | Straightening machine |
US4111025A (en) * | 1973-04-04 | 1978-09-05 | Nippon Steel Corporation | Straightening mill for section steel |
FR2335279A1 (en) * | 1975-12-18 | 1977-07-15 | Moeller & Neumann Gmbh | ROLLER DRESSER, ESPECIALLY HEAVY ROLLER DRESSER, WITH TRACTION ELEMENTS ARRANGED BETWEEN THE HORIZONTAL BEAMS OF THE DRESSER FRAME |
US4065949A (en) * | 1975-12-18 | 1978-01-03 | Moeller & Neumann Gmbh | Straightening apparatus |
US4488423A (en) * | 1980-12-08 | 1984-12-18 | Bertolette Machines, Inc. | Straightening machine |
US4594872A (en) * | 1984-10-30 | 1986-06-17 | Nordlof Richard D | Apparatus for straightening strip material |
DE4408907A1 (en) * | 1994-03-16 | 1995-09-21 | Hoestemberghe & Kluetsch Ferti | Device for straightening hot rolled profiles or bars |
US20070062239A1 (en) * | 2005-09-20 | 2007-03-22 | Shinichi Taguchi | Roll straightener |
US7543470B2 (en) * | 2005-09-20 | 2009-06-09 | Nihon Shinkan Co., Ltd. | Roll straightener |
GB2430171B (en) * | 2005-09-20 | 2010-10-20 | Nihon Shinkan Co Ltd | Roll straightener |
CN102962300A (en) * | 2012-12-03 | 2013-03-13 | 太原重工股份有限公司 | Hydraulic locking device |
Also Published As
Publication number | Publication date |
---|---|
CA931863A (en) | 1973-08-14 |
DE2038114A1 (en) | 1971-02-18 |
JPS4829993B1 (en) | 1973-09-14 |
GB1309115A (en) | 1973-03-07 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
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 |
|
AS | Assignment |
Owner name: PITTSBURGH NATIONAL BANK,PENNSYLVANIA Free format text: SECURITY INTEREST;ASSIGNOR:WEAN UNITED, INC., A CORP. OH.;REEL/FRAME:004792/0307 Effective date: 19860630 Owner name: PITTSBURGH NATIONAL BANK Free format text: SECURITY INTEREST;ASSIGNOR:WEAN UNITED, INC., A CORP. OH.;REEL/FRAME:004792/0307 Effective date: 19860630 |
|
AS | Assignment |
Owner name: UNITED ENGINEERING ROLLING MILLS, INC. Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:WEAN INCORPORATED;REEL/FRAME:004920/0256 Effective date: 19880610 |