US3611486A - Apparatus to control edges of flatrolled metallic products - Google Patents

Apparatus to control edges of flatrolled metallic products Download PDF

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Publication number
US3611486A
US3611486A US874261A US3611486DA US3611486A US 3611486 A US3611486 A US 3611486A US 874261 A US874261 A US 874261A US 3611486D A US3611486D A US 3611486DA US 3611486 A US3611486 A US 3611486A
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United States
Prior art keywords
members
wear
rolling mill
work rolls
bite
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Expired - Lifetime
Application number
US874261A
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English (en)
Inventor
Joseph J Fox
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Motors Liquidation Co
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Motors Liquidation Co
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Publication date
Application filed by Motors Liquidation Co filed Critical Motors Liquidation Co
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Publication of US3611486A publication Critical patent/US3611486A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B39/00—Arrangements for moving, supporting, or positioning work, or controlling its movement, combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B39/14—Guiding, positioning or aligning work
    • B21B39/16—Guiding, positioning or aligning work immediately before entering or after leaving the pass
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/22—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length

Definitions

  • ABSTRACT OF THE DISCLOSURE Apparatus as disclosed for supporting and controlling the edges of metallic material, especially particulate metal, as the material enters the bite of a rolling mill.
  • the apparatus contains two Wear block members adapted to fit into the bite region of the rolling mill and to guide and support the particulate metal being rolled.
  • the wear members are supported so that they are substantially restrained from movement in all directions other than parallel to the direction of rolling.
  • This invention relates to the rolling of metal, and preferably metal particles, into a flat-rolled product such as strip or sheet stock. More specifically, my invention is related to apparatus suitable for use in conjunction with a rolling mill to control the edges of a package of metal particles being drawn into and consolidated by the work rolls of a rolling mill.
  • Edge guide devices have previously been employed in connection with rolling a number of different materials, such as rubber, plastics, and powdered metals. As far as rolling rubber and synthetic plastic resins is concerned, rolling pressures are relatively small and, therefore, the loads on side members for controlling the edges of the rolled product are not severe. Such members, therefore, are of relatively simple design. In the case of rolling powdered metals, moving side or edge guides have been employed which move through or by the rolls in the same direction as the passage of the metal powder. Devices of this type are illustrated, for example, in United States Pat. No. 3,242,530. However, processes have recently been developed for hot rolling metal particles of substantial size, up to three inches or so in greatest dimension, to form sheets that may be up to four feet or more in width.
  • the apparatus is to provide side support for the mass of metal particles as they are drawn between the work rolls of the rolling mill, the apparatus operating in closely spaced apart relationship to the work rolls and being capable of moving slightly in a horizontal plane in response to like movement of the axes of the work rolls.
  • provlding apparatus having at least two wear members adapted to fit into the bite region of the work rolls of a rolling mill stand in close proximity to, but slightly spaced from the circumferential surfaces of the rolls.
  • the wear members are spaced from each other a distance generally equivalent to the desired width of a flat-rolled product to be produced.
  • the wear members are carried by support means in a manner such that the wear members are prevented from being forced apart during the operation of the rolling mill by the tremendous pressure exerted on the metal particles being consolidated.
  • the wear members are prevented from moving in a direction parallel to the plane connecting the axes of the work rolls; that is to say, in a vertical rolling stand the wear members are prevented from working up and down.
  • the wear members are carried by the support means in a manner so that, while the support means itself may be rigidly positioned, the wear members may slide back and forth in the direction of rolling in response to a like displacement or oscillation of the axes of the work rolls. In accordance with my invention this movement is necessary to permit the wear member to operate in close proximity to the rolling mill without striking the rolls of the mill.
  • FIG. 1 is a side elevational view, partly in section, showing my edge guide device carried in a supporting frame and positioned closely adjacent to the work rolls of a rolling mill;
  • FIG. 2 is an enlarged view, partly in section, of a portion of FIG. 1 showing the edge guide wear block and associated members;
  • FIG. 3 is an elevational view of my apparatus and supporting frame viewed from the rolling mill side thereof, the rolling mill being removed for purposes of illustration;
  • FIG. 4 is a plan view, partly in section, of my apparatus in position adjacent to the work rolls of a rolling mill, the upper work roll being removed for purposes of illustration;
  • FIG. 5 is an enlarged perspective view, partly in section, showing a portion of a wear block, portions of rolling mill rolls, and an exemplary particulate metal package just entering the bite of the work rolls.
  • One purpose of my invention is to provide apparatus for lateral support of a charge of particulate metal as it is passed into the bite of a vertical rolling mill stand and compacted into a flat-rolled product.
  • my apparatus is employed in a process wherein metal particles are disposed on an elongated metallic carrier sheet, the edges of which are turned up to form a trough; the carrier sheet and metal particles subsequently heated in a suitable furnace containing a suitable protective atmosphere; and the heated carrier-metal particle package then passed between two work rolls for compaction and consolidation into homogeneous densified flat-rolled products.
  • a carrier sheet-metal particle package 10 is being drawn from left to right from a preheat furnace (not shown) into the bite of vertically disposed work rolls 12.
  • the carrier sheet-metal particle package 10 is drawn through tunnel 14 containing a protective atmosphere, over rollers 16 and across a skid plate 18 into the bite of the rolls 12.
  • the carrier sheet-metal particle package 10 is drawn between two wear block members 20 which give edge support to package 10 against the large pressures exerted by the work rolls 12 to package 10.
  • Wear block members 20 are arranged and constructed and supported by other members of my apparatus to fit close to, but spaced apart from, the circumference of the work rolls 12. In vertical profile the wear blocks 20 are seen to resemble half of a bow tie. In the operation f rolls 12 on the package passing therebetween, there are large forces tending to force the particles and turned-up edges of the carrier sheet outwardly against the wear blocks 20. Therefore, it is necessary to support the wear blocks against the package 10 and to locate the wear blocks 20 in a proper position adjacent the work rolls.
  • my device comprises two wear blocks 20 which are bolted to two slide blocks 22, which in turn are slidably supported and carried in relatively massive slide block carriers 24, which as shown in FIGS. 3 and 4 are located on both sides of the particulate metal containing package.
  • Slide block carriers 24 are rigidly supported in carriage 26.
  • Carriage 26 is adjustably supported in any suitable frame member 28.
  • supporting frame 28 is arranged and constructed to be attached to the frame of the rolling mill, not shown. It will be appreciated that the specific construction and arrangement of the frame for carrying the carriage 26 is not critical to the design of my apparatus.
  • my apparatus Since substantial loads are encountered in rolling relatively large metal particles (10,000 to 20,000 psi. when rolling steel particles) my apparatus is preferably constructed of suitable steels and may weigh several thousand pounds. Despite this relatively large weight, it is necessary that the wear block 20 and adjacent members of my apparatus be positioned and maintained in closely spaced apart relationship to the work rolls 12 of the rolling mill and that these members be capable of moving back and forth slightly in a horizontal plane because the axes of the work rolls 12 move slightly when the rolls are in operation. Therefore, provision must be made for adjusting and maintaining the position of my apparatus as required. As depicted in FIGS. 1, 3 and 4, the supporting frame 28 has base 30, top 32 and side members 34 and is located adjacent the work rolls 12 of the rolling mill.
  • rollers 36 for the purpose of supporting the carriage 26 while it is moved in toward the bite of the rolls 12 and correctly positioned.
  • pedestal members 38 which support the weight of the carriage 26 and associated members in their working position.
  • the carriage member 26 is moved in toward the bite of the work rolls 12 until the wear blocks 20, slide blocks 22 and slide block carriers 24 are respectively spaced apart from work rolls a suitable distance, typically about 0.025 to 0.050 inch.
  • guide rollers 40 which project from and are supported by the slide blocks 22, engage the circumference of the work rolls 12 and roll thereon in the operation of the mill.
  • the horizontal (in and out) position of the carriage 26 is adjusted and maintained by the suitable positioning of set screws 42 and lock bolts 44 extending through ears 46 protruding from the carriage and into the side members 34 of the frame 28.
  • the overall configuration of the carriage 26 is like an open-ended rectangular box. It is open-ended to permit passage of the metal particle-carrier sheet package 10 therethrough.
  • the width and height of the transverse opening must be large enough to accommodate a desired package.
  • the slide block carriers 24 are rigidly attached to opposite vertical inner sides of the carriage 26 by means not shown.
  • the carriage 26 is preferably constructed to accommodate the largest package, spacers and/or adjusters (not shown) are employed to properly locate the slide block carriers 24 when narrower packages are to be rolled.
  • the height of the slide block carriers 24 coincides with the height of the transverse opening in the carriage 26 so that the carriers 24 are well supported by the carriage 26.
  • the ends of the slide block carriers 24 positioned adjacent the rolling mill are suitably cut out or relieved to receive the slide blocks 22 and the supports 52 for the guide rollers 40.
  • a slide block 22 is fitted in each slide block carrier 24 so that the slide block 22 is immovable in either a vertical or lateral direction with respect to the direction of rolling (when rolling horizontally).
  • the slide blocks 22 are permitted and expected to move horizontally, the direction of rolling, and are spring loaded 48 at the rear edges thereof so that they will be forced toward the work rolls 12 despite the tendency of the Work rolls 12 to push them back.
  • the guide rollers are rigidly attached by supports 52 tothe slide block 22 but, as indicated, the rollers 40 and slide blocks 22 are intended to move in relation to the slide block carrier 24.
  • Wear block members 20 are rigidly attached to the slide blocks 22.
  • wear block members 20 which are formed separately from the slide blocks 22, although it will be appreciated thatt he wear block 20 and the slide block 22 could be one piece. Also, it will be appreciated that the wear block 20, slide block 22 and slide block carrier 24 can be one piece and slidably supported by the carriage 26. However, the wear blocks 20 are directly subjected to the pressure and friction of the moving hot carrier sheet package 10 as it is drawn into the bite of the working rollers 12 and, therefore, tends to be worn and scored and may require periodic replacement. Wear blocks suitable for use in rolling steel particles are preferably formed of cast iron.
  • the inner surface of the wear block 20 is preferably convex (but not necessarily smoothly curved) with respect to the carrier sheet package 10 so as to provide additional restraint and support as the carrier sheet 10 enters the bite of the rolls 12. Otherwise, as previously indicated, the wear block 20, slide block 22, and slide block carrier 24 in the region of the bite of the rolls have vertical profiles like that of a half bow tie. Since the slide block carriers 24 are held stationary during a rolling operation they are shortened slightly in the vicinity of the work rolls 12 (see FIGS. 4 and 5) so they will always clear the rolls 12. Because the slide blocks 22 are not intended to be replaced periodically they are also shortened slightly with respect to the wear blocks 20 to assure constant clearance of the work rolls 12. The wear block 20 is arranged and constructed to be rigidly attached to the slide block 22 and moved therewith in an in-and-out direction with respect to the bite of the work rolls 132.
  • the horizontal position of the carriage 26 and slide block carrier 24- are fixed by bolting the carriage 26 to the side members 34 of the frame 28.
  • the vertical position of the carriage is properly adjusted between the work rolls and secured in such a position by use of shims on pedestals 38 at the bottom of the carriage and by bolts 50 passing through a horizontal top frame member 32 and engaging the top of the carriage.
  • only one set of upper and lower guide rollers 40 have been employed on each slide block 22 to roll against the work rolls 12 of the rolling mill and prevent the ends of the wear blocks 20 or slide blocks 22 from contacting these work rolls. It will be appreciated that at least one additional set of upper and lower guide rolls could be employed on each slide block or its equivalent to more precisely determine the working position of the wear blocks 20. It will also be appreciated that relatively soft metal rubbing blocks could be used in place of guide rollers 40 to engage the work rolls 12 and hold the wear blocks 20 spaced apart therefrom.
  • a hot package of particulate metal suitably disposed in a carrier sheet is drawn through the open-ended carriage 26 over the skid plate 18 and between wear blocks 20 into the bite of the work rolls 12.
  • the wear blocks 20 are rigidly supported, ultimately by the carriage 26 and the frame 28, in a vertical direction with respect to the work rolls 12 and in a lateral direction with respect to the direction of travel of the metal packagel 10.
  • the wear bloc-k 20 is prevented from being drawn into the bite of the rolls 12 in response to the frictional force of the carrier package 10 by proper positioning of the guide rolls 40.
  • Heavy springs 48 situated in the slide block carrier 24 and exerting a force on the slide block 22 maintain the guide roll 40 and wear block 20 in the proper in position in the operation of the rolling mill. At the same time, the spring permits a certain amount of give in response to horizontal oscillation of the work rolls 12.
  • a tunnel 14 as shown in FIG. 1 to maintain the preheated metal particles in a controlled atmosphere as the package 10 moves from a preheat furnace into the bite of the rolls 12.
  • the end of the tunnel can be fitted in a special shroud 54 affixed to the carriage 26 so that the hot carrier package 10 is not exposed to air as it proceeds from the furnace into the first rolling mill stage. It is contemplated that in normal operations, suf ficient consolidation of the particles will be obtained during passage through the first rolling mill so that my apparatus will not be required with later rolling mill stands.
  • my apparatus is supported by a relatively stationary frame member immediately adjacent to the rolling mill, and a separate tunnel is employed.
  • a separate tunnel is employed.
  • other practical arrangements can be devised to support my edge guide apparatus and the scope of my invention should not be considered limited to a particular frame and supporting arrangement.
  • an elongated, portable transport car could be employed to connect a preheat furnace with a particular rolling mill stand.
  • the transport car would provide both an enclosure for a controlled atmosphere and support for my edge guide apparatus.
  • Apparatus for use in combination with a rolling mill to guide and support the edges of material being rolled comprising in combination,
  • edge guide members having arcuate portions shaped to fit in the bite region of the work rolls of a said rolling mill but spaced slightly apart from said work rolls in the operative position of said apparatus, said edge guide members being spaced from each other by a desired predetermined distance
  • At least two roll members carried on each of said edge guide members and located on opposite sides of a said edge guide with respect to the axis of flow of material being rolled, said roll members being located so as to engage and roll against a said work roll in the operative position of said apparatus whereby said edge guides are held spaced apart from said work rolls in the operation thereof by said roll members, and
  • support means carrying and supporting said edge guide members, said support means engaging said edge guide members so that said members may move in a direction directly toward or away from the bite of said work rolls.
  • Apparatus for use in combination with a rolling mill to support and guide the material to be rolled into the bite of the rolling mill comprising in combination
  • roller means attached to said carrier members and adapted to roll against the Work rolls of said mill in the operative position of said apparatus to maintain said wear members and said carrier members spaced apart from said work rolls, and
  • Apparatus for use in combination with a rolling mill to support and restrain the edges of material being fed into the bite of the work rolls of said mill comprising in combination
  • a carrier member slidably engaging each of said slidable block members, said carrier members carrying and supporting said slidable blocks so that said slidable blocks can move back and forth along the axis of flow of the material being rolled,

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Rolling (AREA)
  • Powder Metallurgy (AREA)
US874261A 1969-11-05 1969-11-05 Apparatus to control edges of flatrolled metallic products Expired - Lifetime US3611486A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US87426169A 1969-11-05 1969-11-05

Publications (1)

Publication Number Publication Date
US3611486A true US3611486A (en) 1971-10-12

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Application Number Title Priority Date Filing Date
US874261A Expired - Lifetime US3611486A (en) 1969-11-05 1969-11-05 Apparatus to control edges of flatrolled metallic products

Country Status (10)

Country Link
US (1) US3611486A (fr)
JP (1) JPS4917151B1 (fr)
BE (1) BE758545A (fr)
CA (1) CA932567A (fr)
DE (1) DE2054519C3 (fr)
FR (1) FR2071856A5 (fr)
GB (1) GB1281968A (fr)
LU (1) LU61976A1 (fr)
SE (1) SE370032B (fr)
ZA (1) ZA706986B (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3860376A (en) * 1973-12-03 1975-01-14 United States Steel Corp Feed distributor for roll briquetting machine
US3985488A (en) * 1974-11-28 1976-10-12 Hermann Berstorff Maschinenbau Gmbh Material guide jaw for two co-operating rolls of a rolling mill or calender
US3988095A (en) * 1973-01-08 1976-10-26 Koppern & Co. Kg Roll briquetting press
US4925382A (en) * 1988-01-26 1990-05-15 Maschinenfabrik Koppern Gmbh & Co. Kg Roller press for compacting fine-grained salts into sheets
US5558885A (en) * 1994-10-26 1996-09-24 Casa Herrera, Inc. Inserts for sheeting head
US20160113292A1 (en) * 2013-05-17 2016-04-28 Haas Food Equipment Gmbh Roller Arrangement Having a Movable Inlet Plate

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111842491A (zh) * 2019-09-23 2020-10-30 宁波双进精密金属科技有限公司 伺服异步两辊粉末轧机

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3988095A (en) * 1973-01-08 1976-10-26 Koppern & Co. Kg Roll briquetting press
US3860376A (en) * 1973-12-03 1975-01-14 United States Steel Corp Feed distributor for roll briquetting machine
US3985488A (en) * 1974-11-28 1976-10-12 Hermann Berstorff Maschinenbau Gmbh Material guide jaw for two co-operating rolls of a rolling mill or calender
US4925382A (en) * 1988-01-26 1990-05-15 Maschinenfabrik Koppern Gmbh & Co. Kg Roller press for compacting fine-grained salts into sheets
US5558885A (en) * 1994-10-26 1996-09-24 Casa Herrera, Inc. Inserts for sheeting head
US20160113292A1 (en) * 2013-05-17 2016-04-28 Haas Food Equipment Gmbh Roller Arrangement Having a Movable Inlet Plate

Also Published As

Publication number Publication date
FR2071856A5 (fr) 1971-09-17
DE2054519B2 (de) 1973-06-14
BE758545A (fr) 1971-04-16
LU61976A1 (fr) 1971-05-10
JPS4917151B1 (fr) 1974-04-27
ZA706986B (en) 1971-07-28
SE370032B (fr) 1974-09-30
GB1281968A (en) 1972-07-19
DE2054519C3 (de) 1974-01-10
CA932567A (en) 1973-08-28
DE2054519A1 (de) 1971-05-19

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