US3811354A - Flying shear for cutting stock into desired sectional lengths - Google Patents

Flying shear for cutting stock into desired sectional lengths Download PDF

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Publication number
US3811354A
US3811354A US00214991A US21499172A US3811354A US 3811354 A US3811354 A US 3811354A US 00214991 A US00214991 A US 00214991A US 21499172 A US21499172 A US 21499172A US 3811354 A US3811354 A US 3811354A
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US
United States
Prior art keywords
housing
knife holder
upper knife
eccentric cam
outer housing
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
US00214991A
Inventor
J Ito
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.)
Kawasaki Heavy Industries Ltd
Kawasaki Motors Ltd
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Kawasaki Heavy Industries Ltd
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 Kawasaki Heavy Industries Ltd filed Critical Kawasaki Heavy Industries Ltd
Application granted granted Critical
Publication of US3811354A publication Critical patent/US3811354A/en
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Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • B23D36/00—Control arrangements specially adapted for machines for shearing or similar cutting, or for sawing, stock which the latter is travelling otherwise than in the direction of the cut
    • B23D36/0008—Control arrangements specially adapted for machines for shearing or similar cutting, or for sawing, stock which the latter is travelling otherwise than in the direction of the cut for machines with only one cutting, sawing, or shearing devices
    • B23D36/0033—Control arrangements specially adapted for machines for shearing or similar cutting, or for sawing, stock which the latter is travelling otherwise than in the direction of the cut for machines with only one cutting, sawing, or shearing devices for obtaining pieces of a predetermined length
    • B23D36/0058—Control arrangements specially adapted for machines for shearing or similar cutting, or for sawing, stock which the latter is travelling otherwise than in the direction of the cut for machines with only one cutting, sawing, or shearing devices for obtaining pieces of a predetermined length the tool stopping for a considerable time after each cutting 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
    • Y10T83/00—Cutting
    • Y10T83/465—Cutting motion of tool has component in direction of moving work
    • Y10T83/4653—With means to initiate intermittent tool action
    • 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
    • Y10T83/465—Cutting motion of tool has component in direction of moving work
    • Y10T83/4757—Tool carrier shuttles rectilinearly parallel to direction of work feed
    • Y10T83/4763—Both members of cutting pair on same carrier
    • 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
    • Y10T83/465—Cutting motion of tool has component in direction of moving work
    • Y10T83/4766—Orbital motion of cutting blade
    • Y10T83/4783—Constantly oriented tool with arcuate cutting path
    • Y10T83/4786—Cutting couple type

Definitions

  • a flying shear adapted to be installed in the shearing line at the finished end of the heavy plate rolling mill plant for shearing metal plates in various lengths, having a stationary outer housing mounted on the bed plates, a pair of upper knife holder drives which are mounted on the outer housing and drive an eccentric cam shaft joumaled on the outer housing for lifting and lowering an upper knife holder, a shiftable inner shear housing moving parallel to the traveling stock and being disposed inside of the outer housing, thev inner shear housing guiding the liftable upper knife holder and carrying a lower knife holder to effect a shearing action between the upper knife holder, a pair of shifting supports bearing on the outer housing for supporting the inner shear housing, and a pair of shifting drives mounted on the bed plates for reciprocating the inner shear housing in synchronism with the traveling stock at the time of cutting.
  • the upper knife holder is adapted to reciprocate both elevationally and laterally, and is connected to the eccentric cam shaft for rotating the output shaft of the upper knife holder driving device that is arranged in a stationary manner by a connecting rod.
  • the desired sectional length of stock is provided by the simple structure of the fly- PATENTEDIAm m4 sum 01 or 24 in PRIOR ART FIG.
  • FIG. 24a SHEET 19 0F 24 FIG 24c LEAVING OF UPPER v CUTTING K IFE BLADE L p vs 2 I g M FIG. 24a

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shearing Machines (AREA)
  • Dry Shavers And Clippers (AREA)

Abstract

A flying shear, adapted to be installed in the shearing line at the finished end of the heavy plate rolling mill plant for shearing metal plates in various lengths, having a stationary outer housing mounted on the bed plates, a pair of upper knife holder drives which are mounted on the outer housing and drive an eccentric cam shaft journaled on the outer housing for lifting and lowering an upper knife holder, a shiftable inner shear housing moving parallel to the traveling stock and being disposed inside of the outer housing, the inner shear housing guiding the liftable upper knife holder and carrying a lower knife holder to effect a shearing action between the upper knife holder, a pair of shifting supports bearing on the outer housing for supporting the inner shear housing, and a pair of shifting drives mounted on the bed plates for reciprocating the inner shear housing in synchronism with the traveling stock at the time of cutting. The upper knife holder is adapted to reciprocate both elevationally and laterally, and is connected to the eccentric cam shaft for rotating the output shaft of the upper knife holder driving device that is arranged in a stationary manner by a connecting rod. Thus, the desired sectional length of stock is provided by the simple structure of the flying shear.

Description

United States Patent [191 Ito m: 3,811,354 May 21, 1974 Inventor:
Assignee:
Filed:
Appl. No.:
[30] Foreign Application Priority Data Dec. 31, 1970 Japan 45426374 References Cited UNITED STATES PATENTS 3/1940 Grupe 83/32l X l2/l970 Muenchbach 3/l93l Candee 83/320 X Primary Examiner-J. M. Meister [571 ABSTRACT A flying shear, adapted to be installed in the shearing line at the finished end of the heavy plate rolling mill plant for shearing metal plates in various lengths, having a stationary outer housing mounted on the bed plates, a pair of upper knife holder drives which are mounted on the outer housing and drive an eccentric cam shaft joumaled on the outer housing for lifting and lowering an upper knife holder, a shiftable inner shear housing moving parallel to the traveling stock and being disposed inside of the outer housing, thev inner shear housing guiding the liftable upper knife holder and carrying a lower knife holder to effect a shearing action between the upper knife holder, a pair of shifting supports bearing on the outer housing for supporting the inner shear housing, and a pair of shifting drives mounted on the bed plates for reciprocating the inner shear housing in synchronism with the traveling stock at the time of cutting. The upper knife holder is adapted to reciprocate both elevationally and laterally, and is connected to the eccentric cam shaft for rotating the output shaft of the upper knife holder driving device that is arranged in a stationary manner by a connecting rod. Thus, the desired sectional length of stock is provided by the simple structure of the fly- PATENTEDIAm m4 sum 01 or 24 in PRIOR ART FIG.
FIG. 2b
OUOOU/UUUUU 203 CROP CUT PATENTEDIAYZI m4 3; 81 1.354
sum 02 0F 24 FIG. 30 FIG. 3b FIG. 3c
ROTARY DRUMTYPE ROTARY CRANK TYPE PENDLLUM TYPE minimum m4 3L8 1; 354 SHEET as m 2 3 PATENTEB mm mm sum as BE 24 FE E E RELATION BETWEEN x AND X(mm) CUT (J F EL A DE TING Y I200 RELATION BETWEEN AND %f (mm/) q. BACK WARD 0 1 r l 1' 1 45 90 l35 I80 225 270 255 360 LEAVIN TING 0F BLADE FORWARD PAFENFE WAY 2 I914 SHEET 12 [1F 24 MOTOR SPEED Vsp|500 mm/sec I z 0 r f 0 05sec 0.5sec 05sec O Vs=|500- mm/sec 0 $2 9 6 6" ACTUAL SPEED OF MOTOR 48,23 DESIRED VALUE OF Z CONTROLLING SPEED /\CUTTING CORREECTING TIME ACCELERAUON OF DYNAMIC ERROR TIME sec ABOUT 0. 15sec ABOUT 0.5 DL N TIM LOSGC I O 2 sec P'A'I'E'IITEI'JIIIY 2 I IQII 3 81 1; 3 54 SHEET l 0F '24 Vs CUTTING Vs=I500 /sec p 2 q s Vs=|500-1 o s t l.Osec 20sec 30sec y VS-'|50o I BACK- BACKWARD--- FORWARD WARD-- 30sec F i G 2O MOTOR L SPEED T 0 CUTTING FF=I80/SGC l p z q ACCELERATION TIME 'I sec 5 DECELERATION sec 025 025 TIME |.Osec 05sec LOsec l CONTROLLING TIME OF CORRECTING ERROR Pmzmmmel m as 1 1.354
SHEET 15 0F 24 FIG. 22
Lu 0 Z 5 6 *5 E 31 E sHEA F UPP fi QTTO 5 \/375 RAKE 5 BLA HM {5m 2 s 6% A a TOP EDGE OF LOWER SHEAR BLADE MAX PLATE WIDTH 3550mm LENGTH OF SHEAR BLADE 3750mm SHEET 17 0F 24.
PATENTEDIAY 21 1914 mxomkw 45.2. EE 00m UPPER SHEAR BLADE PEED CURVE OF LOWER SHEAR BLADE FIG. 23c
RM /wm/ EN Ap// y m 24W w 8 Wmw L m W... MAm EENE U! w cR r 965% ozFSo mzhmhiw PAIENIEMMHQM $811,354
' sum 18 or 24 FIG.240
ACCELERATIONy DECELERATION 0.25sec I\EAVING 0F UPPER SHEAR cums \iADE 0.25 sec ROTAING SPEED EFFECTIV CUTTING STROKE I32 mm '-I-450mm;TOTAL STROKE PATIENTEIIIIIm IIII 3.81 1.354
SHEET 19 0F 24 FIG 24c LEAVING OF UPPER v CUTTING K IFE BLADE L p vs 2 I g M FIG. 24a
ROTAING SPEED OF R PM ECCENTRIC CAM SHAFT FOR UPPER o s r x SORRM KNIFE HOLDER DRIvE I, P 2 g X, fi/ -l.5 r n /sec fl 3OR.P.M y p z 9 II 0,," r
5 y y Hsec) O 0.5 L0 I.5.2.0 2.5 3.0
-l.0 sec LO sec 05 0 25 LEAVING OF UPPER SHEAR CUTTING BLADE ROTATING SPEED OF INNER- OuT ECCENTRICs FOR SHIFTING D IV LEAVING OF CuTTING UPEER SH R FIG 24d (0.25sec) CONTROLLING TIME OF CORRECTING DYNAMIC ERROR(O.5GGC) ROTATING SPEED (30 r. p m) DECELERATIOM LOsec) ACCELERATION (LOsec)

Claims (2)

1. In a flying shear adapted to be installed in the shearing line at the finished end of the heavy plate rolling mill plant for shearing metal plates in various lengths, having a stationary outer housing mounted on bed plates, a pair of upper knife holder drives mounted on said outer housing and driving an eccentric cam shaft journaled on said outer housing for lifting and lowering an upper knife holder, a shiftable inner shear housing moving parallel to the traveling stock, said inner housing being inside of said outer housing, guiding said liftable upper knife holder and carrying a lower knife holder to effect a shearing action between said upper knife holder, a pair of shifting supports bearing on said outer housing for supporting said inner shear housing, and a pair of shifting drives mounted on said bed plates for reciprocating said inner shear housing in synchronism with the traveling stock at the time of cutting; the improvement wherein an inner eccentric cam is fixed to a drive shaft for oneway rotation, an outer eccentric cam is movably engaged with the outer periphery of said inner eccentric cam and is so mounted as to inversely drive with the same speed as the inner eccentric cam at the same time the connecting rod movably engaged with the outer periphery of said outer eccentric cam, is connected directly or through a rockable lever to the flying shear housing, whereby the composite motion of the inner and outer eccentric cams are converted to the reciprocating motion of the knife holder.
2. In a flying shear installed in the shearing line at the finished end of the heavy plate rolling mill plant for shearing metal plates in various lengths, having a stationary outer housing mounted on bed plates, a pair of upper knife holder drives mounted on said outer housing and adapted to drive an eccentric cam shaft journaled on said outer housing for lifting and lowering an upper knife holder, a shiftable inner shear housing moving parallel to the traveling stock, said inner housing being inside of said outer housing, guiding said liftable upper knife holder and carrying a lower knife holder to effect a shearing action between said upper knife holder, a pair of shifting supports bearing on said outer housing for supporting said inner shear housing, and a pair of shifting drives mounted on said bed plates for reciprocating said inner shear housing in synchronism with the traveling stock at the time of cutting; the improvement comprising inner and outer eccentric cam shafts and wherein the upper knife holder drives and the inside shearing housing reciprocating drives are driven separately by electric motors, and the upper knife holder drive motor is operated inttermittently and the rotating speed of the eccentric cam shaft for the upper knife edge drive is rotated at a higher speed than the rotating speed of the inner and outer eccentric cam shafts for the inside shearing housing reciprocating flying drive.
US00214991A 1970-12-31 1972-01-03 Flying shear for cutting stock into desired sectional lengths Expired - Lifetime US3811354A (en)

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JP12637470 1970-12-31

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DE (1) DE2165627C2 (en)
FR (1) FR2120160B1 (en)

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4103576A (en) * 1976-03-20 1978-08-01 Schloemann-Siemag Aktiengesellschaft Flying cross cutting shear for plate
US4316131A (en) * 1977-11-30 1982-02-16 Tokyo Shibaura Denki Kabushiki Kaisha Control apparatus of flying shears
EP0046034A1 (en) * 1980-08-12 1982-02-17 Hawker Siddeley Canada Inc. Length control apparatus and method
US4444077A (en) * 1981-09-25 1984-04-24 Georgia-Pacific Corporation Flying saw apparatus
US4739683A (en) * 1986-03-19 1988-04-26 Sumikura Industrial Company Limited Apparatus for cutting material sheet into trapezoidal pieces
US5664472A (en) * 1995-06-29 1997-09-09 Mitsubishi Denki Kabushiki Kaisha Cutter apparatus for coil conductor
US5850772A (en) * 1996-06-24 1998-12-22 Nusco Co. Ltd. Method of controlling fly cutting rotary shear
US5967010A (en) * 1998-04-10 1999-10-19 Cambridge Industries, Inc. Cutting apparatus and cutting process for hollow plastic molded articles
US6164175A (en) * 1996-08-19 2000-12-26 Sms Schloemann-Siemag Aktiengesellschaft Method and arrangement for operating rotating starting shears
US6684745B2 (en) * 1999-04-08 2004-02-03 Morgan Construction Company High speed flying shear
US20040187665A1 (en) * 2003-03-27 2004-09-30 Oto Mills S.P.A. Machine for continuous-cycle shearing of moving welded tubes
US20100258017A1 (en) * 2009-04-10 2010-10-14 Kersey Kevin T Print Media Slitter
US9259892B2 (en) 2008-05-22 2016-02-16 Morgana Systems Limited Creasing machine
US20160151815A1 (en) * 2013-07-05 2016-06-02 SIEMENS VAI METALS TECHNOLOGIES GMBH ß System and method for cutting to length long rolled products coming from different strands of a rolling mill
CN106181413A (en) * 2016-08-30 2016-12-07 天津滨海精大制桶有限公司 A kind of steel plate cutting means
US20230023673A1 (en) * 2019-12-27 2023-01-26 Sankyo Seisakusho Co. Plate material cutting device

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2361966A1 (en) * 1975-12-30 1978-03-17 Kawasaki Heavy Ind Ltd FLYING SHEARS FOR MOVING MATERIALS
FR2550724B1 (en) * 1983-08-18 1987-05-07 Martin Sa AUTOMATIC DEVICE FOR REGISTERING A TOOL MOUNTED ON A ROTARY CYLINDER FOR THE TREATMENT OF PLATE PRODUCTS

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1798929A (en) * 1927-11-28 1931-03-31 Waterbury Farrel Foundry Co Cutting machine
US2192707A (en) * 1936-12-04 1940-03-05 Chambon Corp Press for operating upon continually traveling material
US3548698A (en) * 1968-01-19 1970-12-22 Irma Ungerer Nec Dollinger Flying shears

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1798929A (en) * 1927-11-28 1931-03-31 Waterbury Farrel Foundry Co Cutting machine
US2192707A (en) * 1936-12-04 1940-03-05 Chambon Corp Press for operating upon continually traveling material
US3548698A (en) * 1968-01-19 1970-12-22 Irma Ungerer Nec Dollinger Flying shears

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4103576A (en) * 1976-03-20 1978-08-01 Schloemann-Siemag Aktiengesellschaft Flying cross cutting shear for plate
US4316131A (en) * 1977-11-30 1982-02-16 Tokyo Shibaura Denki Kabushiki Kaisha Control apparatus of flying shears
EP0046034A1 (en) * 1980-08-12 1982-02-17 Hawker Siddeley Canada Inc. Length control apparatus and method
US4444077A (en) * 1981-09-25 1984-04-24 Georgia-Pacific Corporation Flying saw apparatus
US4739683A (en) * 1986-03-19 1988-04-26 Sumikura Industrial Company Limited Apparatus for cutting material sheet into trapezoidal pieces
US5664472A (en) * 1995-06-29 1997-09-09 Mitsubishi Denki Kabushiki Kaisha Cutter apparatus for coil conductor
US5826471A (en) * 1995-06-29 1998-10-27 Mitsubishi Denki Kabushika Kaisha Cutting method for coil conductor
US5850772A (en) * 1996-06-24 1998-12-22 Nusco Co. Ltd. Method of controlling fly cutting rotary shear
US6164175A (en) * 1996-08-19 2000-12-26 Sms Schloemann-Siemag Aktiengesellschaft Method and arrangement for operating rotating starting shears
US5967010A (en) * 1998-04-10 1999-10-19 Cambridge Industries, Inc. Cutting apparatus and cutting process for hollow plastic molded articles
US6684745B2 (en) * 1999-04-08 2004-02-03 Morgan Construction Company High speed flying shear
US20040187665A1 (en) * 2003-03-27 2004-09-30 Oto Mills S.P.A. Machine for continuous-cycle shearing of moving welded tubes
US9259892B2 (en) 2008-05-22 2016-02-16 Morgana Systems Limited Creasing machine
US20100258017A1 (en) * 2009-04-10 2010-10-14 Kersey Kevin T Print Media Slitter
US20160151815A1 (en) * 2013-07-05 2016-06-02 SIEMENS VAI METALS TECHNOLOGIES GMBH ß System and method for cutting to length long rolled products coming from different strands of a rolling mill
US10994348B2 (en) * 2013-07-05 2021-05-04 Primetals Technologies Austria GmbH System and method for cutting to length long rolled products coming from different strands of a rolling mill
CN106181413A (en) * 2016-08-30 2016-12-07 天津滨海精大制桶有限公司 A kind of steel plate cutting means
US20230023673A1 (en) * 2019-12-27 2023-01-26 Sankyo Seisakusho Co. Plate material cutting device
US11931814B2 (en) * 2019-12-27 2024-03-19 Sankyo Seisakusho Co. Plate material cutting device

Also Published As

Publication number Publication date
FR2120160B1 (en) 1973-06-08
FR2120160A1 (en) 1972-08-11
DE2165627A1 (en) 1972-09-07
DE2165627C2 (en) 1984-06-14

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