US3826415A - Apparatus for preventing strip accumulation - Google Patents

Apparatus for preventing strip accumulation Download PDF

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Publication number
US3826415A
US3826415A US28862172A US3826415A US 3826415 A US3826415 A US 3826415A US 28862172 A US28862172 A US 28862172A US 3826415 A US3826415 A US 3826415A
Authority
US
United States
Prior art keywords
strip
knife
travel
mill
cutting
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
Other languages
English (en)
Inventor
G Koss
J Scott
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.)
United States Steel Corp
Original Assignee
Steel Corp
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 Steel Corp filed Critical Steel Corp
Priority to US28862172 priority Critical patent/US3826415A/en
Priority to AU60066/73A priority patent/AU473487B2/en
Priority to NL7312470A priority patent/NL7312470A/xx
Priority to CA180,831A priority patent/CA991982A/en
Priority to AR25004673A priority patent/AR198433A1/es
Priority to DE19732345976 priority patent/DE2345976A1/de
Priority to BR705073A priority patent/BR7307050D0/pt
Priority to PH15012A priority patent/PH10608A/en
Priority to JP10297573A priority patent/JPS4993251A/ja
Priority to FR7332960A priority patent/FR2198799B1/fr
Priority to GB4311873A priority patent/GB1434209A/en
Priority to BE135625A priority patent/BE804825A/xx
Priority to IT6971973A priority patent/IT996689B/it
Priority to US45568974 priority patent/US3911711A/en
Application granted granted Critical
Publication of US3826415A publication Critical patent/US3826415A/en
Assigned to USX CORPORATION, A CORP. OF DE reassignment USX CORPORATION, A CORP. OF DE MERGER (SEE DOCUMENT FOR DETAILS). Assignors: UNITED STATES STEEL CORPORATION (MERGED INTO)
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
    • B21B—ROLLING OF METAL
    • B21B33/00—Safety devices not otherwise provided for; Breaker blocks; Devices for freeing jammed rolls for handling cobbles; Overload safety devices
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D31/00—Shearing machines or shearing devices covered by none or more than one of the groups B23D15/00 - B23D29/00; Combinations of shearing machines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D33/00—Accessories for shearing machines or shearing devices
    • B23D33/02—Arrangements for holding, guiding, and/or feeding work during the operation
    • 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
    • Y10T225/00—Severing by tearing or breaking
    • Y10T225/30—Breaking or tearing apparatus
    • Y10T225/307—Combined with preliminary weakener or with nonbreaking cutter
    • 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
    • Y10T83/00—Cutting
    • Y10T83/202—With product handling means
    • Y10T83/2074—Including means to divert one portion of product from another
    • Y10T83/2083—Deflecting guide
    • Y10T83/2085—Positionable gate in product flow path
    • 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
    • Y10T83/00—Cutting
    • Y10T83/869—Means to drive or to guide tool
    • Y10T83/8798—With simple oscillating motion only
    • Y10T83/8817—Axially entending cutting edge

Definitions

  • ABSTRACT Apparatus for preventing accumulation of strip be- Pittsburgh, Pa.
  • tween stands of a multistand hot or cold reduction mill when a strip breaks includes a curved knife blade of greater width than the strip, means for maintaining the [52] US. 225/94, 83/106, 83/610 51 lm. 823d 17/06 kmfe a Stand-by 9 f fi P of e Smp, 1 Field of Search 83/105, 106, 163 3562 and means for moving the knife into contact with the 83/610, 611; 225/94 strip to cut and reverse the direction of travel of the strip.
  • the method consists of detecting the strip break, actuating a cutting means, cutting the strip and reversing the direction of strip travel.
  • the primary object of our invention is to provide an apparatus in combination with a high speed strip mill that will prevent strip from entering the first stand of a multistand mill when a break or cobble occurs in the mill.
  • Another object of our invention is to provide an apparatus for use in combination with a high speed strip mill that will sever the strip being fed into the mill momentarily upon the occurrence of a break or cobble.
  • a further object of our invention is to provide a method of preventing strip entry into a high speed strip mill on occurrence of a strip break or cobble.
  • the apparatus includes a curved blade which drops downwardly against the strip to thereby cut the strip and change its direction of travel back upon itself.
  • the single FIGURE is an isometric view of the preferred embodiment of our invented strip cutting apparatus.
  • our strip cutting apparatus is mounted between a feed roll and the first stand of a multistand reduction mill, the stand being represented by work rolls l2 and 13.
  • a blade 14 is pivotally mounted on a shaft 16 which is journaled in a pair of bearings 18 and 19 mounted on frame 20.
  • the knife blade 14, which may be curved as shown in the drawing, has a horizontal cutting edge 22 and a wedge-shaped central piercing protrusion 24 near the center of its lower edge.
  • a double acting air cylinder 30 is mounted atop the frame 20 and anchored thereto. Piston rod 32 extending from the air cylinder is fastened to knife blade 14 by a clevis 34 and pin 35.
  • the pneumatic cylinder is actuated by means of a solenoid-operated pneumatic valve 40.
  • the knife blade 14 is held in the ready or stand-by position above the path of strip S by air cylinder 30 which holds piston rod 32 in the retracted position.
  • valve 40 is actuated to cause the piston rod to extend. This may be accomplished manually or a strip detector may be used to automatically actuate the pneumatic cylinder. This causes the knife blade 14 to pivot about its shaft 16, moving its lead edge 22 downwardly at a rapid rate, forcing the wedge-shaped central piercing protrusion 24 into and through the center of the moving strip S and into hole 27 in strip guide 26, shearing the strip outwardly from its center.
  • the strip follows the curvature of the knife blade and moves back over itself into an area in front of the reducing mill, that is, to the left of feed roll 10 as shown in the drawing. This area is easily accessible for cleanup and is not subject to damage from strip pile up because there is little or no operating equipment in this area.
  • the knife blade 14 does not always rupture the strip unless the wedge-shaped protrusion 24 is present. This imparts a tearing action to the strip which is completed as the cutting edge 22 of the knife hits the strip across its full width.
  • the knife blade could be straight and could drop vertically.
  • the function of the curved portion of the blade could be performed by a curved guide between the blade and the first work roll stand which would be contacted by the strip after being cut, and thereupon change the direction of strip travel back upon itself because of the curvature of the guide.
  • the knife blade could be pivoted at one side of the frame 20 in such a manner that it would contact one edge of the strip first.
  • the knife could be held in a stand-by position by an electromag net. in this case, the power would be switched off to drop the blade into the cutting position.
  • Apparatus for cutting and reversing the direction of travel of a traveling strip comprising a knife having a cutting edge and an arcuate portion, the width of said knife being greater than that of said strip, means for maintaining said knife in a standby position above the path of travel of said strip, and means for moving said knife edge into contact with said strip to cut said strip, whereby said arcuate portion of said knife acts as guide means for reversing the direction of travel of said strip.
  • Apparatus according to claim 1 further comprising a wedge-shaped protrusion extending downwardly from the lower edge of said knife.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Nonmetal Cutting Devices (AREA)
  • Winding, Rewinding, Material Storage Devices (AREA)
  • Accessories And Tools For Shearing Machines (AREA)
  • Metal Rolling (AREA)
US28862172 1972-09-13 1972-09-13 Apparatus for preventing strip accumulation Expired - Lifetime US3826415A (en)

Priority Applications (14)

Application Number Priority Date Filing Date Title
US28862172 US3826415A (en) 1972-09-13 1972-09-13 Apparatus for preventing strip accumulation
AU60066/73A AU473487B2 (en) 1972-09-13 1973-09-06 Method and apparatus for preventing strip accumulation
NL7312470A NL7312470A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1972-09-13 1973-09-10
AR25004673A AR198433A1 (es) 1972-09-13 1973-09-12 Aparato para reducir la acumulacion de una tira entre los bastidores de un laminador de reduccion
DE19732345976 DE2345976A1 (de) 1972-09-13 1973-09-12 Verfahren und vorrichtung zur verhinderung des bandstaues zwischen reduzierwalzgeruesten
BR705073A BR7307050D0 (pt) 1972-09-13 1973-09-12 Processo e aparelho para reduzir ao minimo ou impedir a acumulacao de tira entre as cadeiras de um laminador de reducao
PH15012A PH10608A (en) 1972-09-13 1973-09-12 Method and apparatus for preventing strip accumulation
JP10297573A JPS4993251A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1972-09-13 1973-09-12
CA180,831A CA991982A (en) 1972-09-13 1973-09-12 Method and apparatus for preventing strip accumulation
FR7332960A FR2198799B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1972-09-13 1973-09-13
GB4311873A GB1434209A (en) 1972-09-13 1973-09-13 Method and apparatus for preventing strip accumulation in a reducing mill
BE135625A BE804825A (fr) 1972-09-13 1973-09-13 Procede et appareil pour empecher une accumulation de feuillard
IT6971973A IT996689B (it) 1972-09-13 1973-09-13 Procedimento ed apparecchio per pre venire l accumulazione di nastro metallico fra le gabbie di un lami natoio riduttore
US45568974 US3911711A (en) 1972-09-13 1974-03-28 Method and apparatus for preventing strip accumulation

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US28862172 US3826415A (en) 1972-09-13 1972-09-13 Apparatus for preventing strip accumulation
US45568974 US3911711A (en) 1972-09-13 1974-03-28 Method and apparatus for preventing strip accumulation

Publications (1)

Publication Number Publication Date
US3826415A true US3826415A (en) 1974-07-30

Family

ID=26965133

Family Applications (2)

Application Number Title Priority Date Filing Date
US28862172 Expired - Lifetime US3826415A (en) 1972-09-13 1972-09-13 Apparatus for preventing strip accumulation
US45568974 Expired - Lifetime US3911711A (en) 1972-09-13 1974-03-28 Method and apparatus for preventing strip accumulation

Family Applications After (1)

Application Number Title Priority Date Filing Date
US45568974 Expired - Lifetime US3911711A (en) 1972-09-13 1974-03-28 Method and apparatus for preventing strip accumulation

Country Status (9)

Country Link
US (2) US3826415A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
JP (1) JPS4993251A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
AU (1) AU473487B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
BE (1) BE804825A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
CA (1) CA991982A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE (1) DE2345976A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
FR (1) FR2198799B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
GB (1) GB1434209A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
NL (1) NL7312470A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108555381A (zh) * 2017-12-19 2018-09-21 天水锻压机床(集团)有限公司 一种用于宽厚板二维送料横向测长剪切装置及其控制方法
US11663869B2 (en) 2018-08-08 2023-05-30 Suprema Hq Inc. Access control system and access control method using the same

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102175600B1 (ko) * 2018-11-23 2020-11-06 주식회사 포스코 압연기의 가공장치

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2973549A (en) * 1956-06-29 1961-03-07 Phillips Petroleum Co Horizontal cutter and take-off device
US3151482A (en) * 1958-11-25 1964-10-06 Warren S D Co Apparatus for inspecting, cutting, and sorting paper
US3741054A (en) * 1971-10-26 1973-06-26 Philadelphia College Of Textil Material thickness detector

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3020788A (en) * 1958-06-04 1962-02-13 Anthony E Peters Shear control system for multi-line continuous rod mills
US3552161A (en) * 1967-04-26 1971-01-05 Western Electric Co Mill protecting device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2973549A (en) * 1956-06-29 1961-03-07 Phillips Petroleum Co Horizontal cutter and take-off device
US3151482A (en) * 1958-11-25 1964-10-06 Warren S D Co Apparatus for inspecting, cutting, and sorting paper
US3741054A (en) * 1971-10-26 1973-06-26 Philadelphia College Of Textil Material thickness detector

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108555381A (zh) * 2017-12-19 2018-09-21 天水锻压机床(集团)有限公司 一种用于宽厚板二维送料横向测长剪切装置及其控制方法
US11663869B2 (en) 2018-08-08 2023-05-30 Suprema Hq Inc. Access control system and access control method using the same

Also Published As

Publication number Publication date
AU473487B2 (en) 1976-06-24
CA991982A (en) 1976-06-29
GB1434209A (en) 1976-05-05
AU6006673A (en) 1975-03-06
BE804825A (fr) 1974-03-13
JPS4993251A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1974-09-05
FR2198799B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1977-08-12
DE2345976A1 (de) 1974-03-21
US3911711A (en) 1975-10-14
NL7312470A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1974-03-15
FR2198799A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1974-04-05

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Legal Events

Date Code Title Description
AS Assignment

Owner name: USX CORPORATION, A CORP. OF DE, STATELESS

Free format text: MERGER;ASSIGNOR:UNITED STATES STEEL CORPORATION (MERGED INTO);REEL/FRAME:005060/0960

Effective date: 19880112