US3886828A - Shear - Google Patents

Shear Download PDF

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Publication number
US3886828A
US3886828A US470747A US47074774A US3886828A US 3886828 A US3886828 A US 3886828A US 470747 A US470747 A US 470747A US 47074774 A US47074774 A US 47074774A US 3886828 A US3886828 A US 3886828A
Authority
US
United States
Prior art keywords
upper knife
sheet metal
knife
roller
cutting edge
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
US470747A
Other languages
English (en)
Inventor
Adolf Muller
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.)
SMS Siemag AG
Original Assignee
Schloemann Siemag AG
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
Priority claimed from DE19732329095 external-priority patent/DE2329095C3/de
Application filed by Schloemann Siemag AG filed Critical Schloemann Siemag AG
Application granted granted Critical
Publication of US3886828A publication Critical patent/US3886828A/en
Anticipated expiration legal-status Critical
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
    • B23D15/00—Shearing machines or shearing devices cutting by blades which move parallel to themselves
    • B23D15/06—Sheet shears
    • B23D15/08—Sheet shears with a blade moved in one plane, e.g. perpendicular to the surface of the sheet
    • 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
    • B23D31/02—Shearing machines or shearing devices covered by none or more than one of the groups B23D15/00 - B23D29/00; Combinations of shearing machines for performing different cutting operations on travelling stock, e.g. slitting and severing simultaneously
    • 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
    • Y10T83/2092—Means to move, guide, or permit free fall or flight of product
    • Y10T83/2181—Active delivery means mounted on tool support
    • 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
    • Y10T83/2092—Means to move, guide, or permit free fall or flight of product
    • Y10T83/2196—Roller[s]
    • 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
    • Y10T83/444—Tool engages work during dwell of intermittent workfeed
    • Y10T83/4531—Work feed increment shorter than longitudinal tool field
    • 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
    • Y10T83/8873—Straight line motion combined with tilting in plane of stroke

Definitions

  • the sheet metal is transported further by the drivers in one stroke corresponding to the cutting length and, thereafter, the next cut takes place.
  • the cutting operation of the slitting shears continues without interruption with constant crank shaft revolutions until the sheet metal is cut longitudinally along its entire length.
  • the sheet metal becomes completely separated after the upper knife edge penetrates half. Due to this experience, it is customary to provide the upper knife edge with an adjusting deviceby which a knife split adjustment in the vertical direction can be made. By this method, the upper knife edge can be adjusted vertically in such a way that it penetrates approximately one-half the thickness of the sheet metal in every length to be divided. This prevents the separated sheet metal strip on the upper knife side from being pressed to far downwardly and, therefore, bent towards the cut edge.
  • every transport for sheet metal to be cut lengthwise begins immediately at the end of the cutting stroke and ends only at the time that the starting cut end of the upper knife edge has already moved one-half the sheet metal thickness beneath the sheet metal surface, that is immediately before the start of a new cut.
  • Another object of this invention is the provision of shear apparatus which takes measurements which effectively prevent a gliding touch of the sheet metal still in movement because of the starting of a new cutting stroke and penetration of the upper knife.
  • the invention consists of a shear which is operative in such a way that, before the penetration of the upper knife edge on the upper knife carrier, a roller is positioned which extends slightly over the cutting edge of the upper knife edge.
  • the roller is freely supported and is rotatable on the upper knife carrier about an axis extending transversely of the cutting edge of the upper knife. This roller touches the sheet metal before the upper knife and rolls off its surface as long as the sheet metal is still in movement. The roller prevents any sliding movement between the sheet metal and the upper knife, since the upper knife comes in contact with the sheet metal only then, when the carrying stroke of the sheet metal is ended.
  • a counter pressure roll is sup-' ported on the front end of the lower knife approximately vertically below of the roller positioned on the upper knife carrier. This counter pressure roller extends slightly over the cutting edge of the lower knife edge.
  • This design prevents the moving sheet metal from pressing too strongly on the lower knife table by lowering the roller along with the upper knife. Therefore, at this location scratches cannot occur.
  • FIGURE of the drawing shows a slitting shear constructed in accordance with the present invention as viewed transversely of the cutting edges of the knives.
  • the shear stand 1 is equipped with a conventional stationary lower knife table 2 to which the straight lower knife 3 is fastened. At the top within the shear stand 1 are supported two crank shafts 4 and 5 connected by two connectors 6 and 7 to a knife carrier 8 which carries the bow-shaped upper knife 9 for raising and lowering it.
  • crank shafts 4 and 5 and the attached connections 6 and 7 are designed in such a way that the upper knife 9 is operated by each crank shaft turn to execute a cutting stroke in the shape of a rocking or rolling cutting movement. During this operation the end 10 of the upper knife 9 always penetrates first into sheet metal 11 positioned on the lower knife table 2.
  • the sheet metal 11 is displaced by means of a driver 12 in a stroke which always corresponds to the distance between the ends of the two knives 3 and 8.
  • the sheet metal 11 is still moving when the end 10 of the upper knife 9 penetrates the end portion of the cut created by the previous cutting stroke.
  • a roller 13 is positioned ahead of the end 10 of the upper knife 9 on the upper knife carrier 8.
  • This roller is supported to be freely rotatable and has its circumference extending somewhat beyond the cutting edge of the upper knife 9 on upper knife carrier 8.
  • This roller 13 always meets the top of the moving sheet metal 11 before the end 10 of upper knife 9. It presses on the end portion of the previously-created longitudinal dividing cut the separated sheet metal strip on the upper knife side and presses it elastically downwardly while the strip is still running underneath the roller 13. Sliding of the sheet metal 11 and upper knife 9 on top of each other is hereby safely prevented.
  • a freely rotatable roller 14 is positioned ahead of the lower knife 3 at the same height as the roller 13. It is located in opposition to it and is displaced toward the lower knife side.
  • the roller 14 has its circumference extending slightly above the cutting edge of the lower knife 3.
  • This roller 14 acts as a carrier roll for the sheet metal 11 and prevents it from being pressed too hard onto the lower knife table 2 and onto the cutting edge of lower knife 3 by the downwardly-moving roll 13.
  • the two rollers l3 and 14 do not interfere with each other, because they are displaced transversely of the cutting edges of knives 3 and 9 as seen in direction of their support axes, and mounted in such a way that they are always positioned behind the knife gap.
  • roller (13) is mounted to be freely rotatable about an axis directed transversely of the cutting edge of the upper knife (9).

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shearing Machines (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
US470747A 1973-06-07 1974-05-17 Shear Expired - Lifetime US3886828A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19732329095 DE2329095C3 (de) 1973-06-07 Längsteilschere für Walzbleche, insbesondere für dicke Bleche

Publications (1)

Publication Number Publication Date
US3886828A true US3886828A (en) 1975-06-03

Family

ID=5883364

Family Applications (1)

Application Number Title Priority Date Filing Date
US470747A Expired - Lifetime US3886828A (en) 1973-06-07 1974-05-17 Shear

Country Status (5)

Country Link
US (1) US3886828A (de)
JP (1) JPS5546804B2 (de)
CS (1) CS181757B2 (de)
FR (1) FR2232390B3 (de)
GB (1) GB1440169A (de)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4459889A (en) * 1980-12-23 1984-07-17 Davy-Loewy Limited Shear
US4476760A (en) * 1983-02-18 1984-10-16 Joseph Galkin Corporation Cutting system
US4524659A (en) * 1981-10-23 1985-06-25 Yoshida Kogyo K. K. Apparatus for cutting continuous slide fastener chain
US4635512A (en) * 1984-01-26 1987-01-13 Carl Ulrich Peddinghaus Apparatus for the cutting of rods, especially concrete reinforcing rods
US20060060050A1 (en) * 2002-12-20 2006-03-23 Gerhard Heitze Shearing machine for transversally dividing a heavy plate by means of an eccentric drive
US20080000336A1 (en) * 2006-06-29 2008-01-03 Pivatic Oy Cutter for Cutting a Web-like or Sheet-like Metal Material
CN100363135C (zh) * 2003-08-12 2008-01-23 三菱日立制铁机械株式会社 滚动剪切机
CN102366843A (zh) * 2010-09-08 2012-03-07 新疆八一钢铁股份有限公司 拖曳测长薄板液压剪
CN103182557A (zh) * 2013-03-25 2013-07-03 北京京诚之星科技开发有限公司 双轴异步传动滚切式剪切设备
CN103639513A (zh) * 2013-11-15 2014-03-19 四川银河钢结构工程有限公司 一种定长剪板机
CN103639510A (zh) * 2013-11-15 2014-03-19 四川银河钢结构工程有限公司 一种适用于不同板厚的剪板机
CN103894665A (zh) * 2014-02-28 2014-07-02 南通太和机械集团有限公司 一种定位准确的剪板机
CN105728818A (zh) * 2016-04-22 2016-07-06 济南天旭数控机械有限公司 一种带钢剪切机
US20170203456A1 (en) * 2014-07-09 2017-07-20 Vmi Holland B.V. Cutting device for cutting tire components
CN107053319A (zh) * 2017-06-08 2017-08-18 玖德隆机械（昆山）有限公司 计量式橡塑板材剪板机

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51135276A (en) * 1975-05-12 1976-11-24 Kawaguchiko Seimitsu Kk Insect capturing device
JPS5728505U (de) * 1980-07-25 1982-02-15
JPS61174206U (de) * 1985-04-17 1986-10-30
EP0258436A4 (de) * 1986-01-31 1989-01-12 Slavyansk Vni Pk Metall Mash Schere mit rollendem Schnitt zum Schneiden von Blech.
US6959510B1 (en) 1994-10-21 2005-11-01 Ecolab, Inc. Insect trap with continuous light pattern
US5365690B1 (en) * 1993-01-04 1998-03-03 Ecolab Inc Flying insect trap using reflected and radiated light
JP5892126B2 (ja) * 2013-08-27 2016-03-23 Ｊｆｅスチール株式会社 シャー速度設定装置、ローリングカットシャー、シャー速度設定方法、および鋼板の剪断方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1986685A (en) * 1933-08-08 1935-01-01 Andrew W Soderberg Shears
US3316791A (en) * 1963-12-05 1967-05-02 Moeller & Neumann Verwalt Ges Metal shears having a straight and a curved knife
US3492898A (en) * 1967-02-21 1970-02-03 Schloemann Ag Shears for trimming rolled metal sheets

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1986685A (en) * 1933-08-08 1935-01-01 Andrew W Soderberg Shears
US3316791A (en) * 1963-12-05 1967-05-02 Moeller & Neumann Verwalt Ges Metal shears having a straight and a curved knife
US3492898A (en) * 1967-02-21 1970-02-03 Schloemann Ag Shears for trimming rolled metal sheets

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4459889A (en) * 1980-12-23 1984-07-17 Davy-Loewy Limited Shear
US4524659A (en) * 1981-10-23 1985-06-25 Yoshida Kogyo K. K. Apparatus for cutting continuous slide fastener chain
US4476760A (en) * 1983-02-18 1984-10-16 Joseph Galkin Corporation Cutting system
US4635512A (en) * 1984-01-26 1987-01-13 Carl Ulrich Peddinghaus Apparatus for the cutting of rods, especially concrete reinforcing rods
US20060060050A1 (en) * 2002-12-20 2006-03-23 Gerhard Heitze Shearing machine for transversally dividing a heavy plate by means of an eccentric drive
CN100415422C (zh) * 2002-12-20 2008-09-03 Sms迪马格股份公司 具有偏心轮驱动机构的用于横向切裁厚板的剪床
CN100363135C (zh) * 2003-08-12 2008-01-23 三菱日立制铁机械株式会社 滚动剪切机
US20080000336A1 (en) * 2006-06-29 2008-01-03 Pivatic Oy Cutter for Cutting a Web-like or Sheet-like Metal Material
CN102366843A (zh) * 2010-09-08 2012-03-07 新疆八一钢铁股份有限公司 拖曳测长薄板液压剪
CN103182557A (zh) * 2013-03-25 2013-07-03 北京京诚之星科技开发有限公司 双轴异步传动滚切式剪切设备
CN103639513A (zh) * 2013-11-15 2014-03-19 四川银河钢结构工程有限公司 一种定长剪板机
CN103639510A (zh) * 2013-11-15 2014-03-19 四川银河钢结构工程有限公司 一种适用于不同板厚的剪板机
CN103639510B (zh) * 2013-11-15 2015-11-18 四川银河钢结构工程有限公司 一种适用于不同板厚的剪板机
CN103894665A (zh) * 2014-02-28 2014-07-02 南通太和机械集团有限公司 一种定位准确的剪板机
US20170203456A1 (en) * 2014-07-09 2017-07-20 Vmi Holland B.V. Cutting device for cutting tire components
CN105728818A (zh) * 2016-04-22 2016-07-06 济南天旭数控机械有限公司 一种带钢剪切机
CN107053319A (zh) * 2017-06-08 2017-08-18 玖德隆机械（昆山）有限公司 计量式橡塑板材剪板机

Also Published As

Publication number Publication date
CS181757B2 (en) 1978-03-31
DE2329095A1 (de) 1975-01-02
FR2232390A1 (de) 1975-01-03
JPS5546804B2 (de) 1980-11-26
JPS5035778A (de) 1975-04-04
DE2329095B2 (de) 1977-01-27
GB1440169A (en) 1976-06-23
FR2232390B3 (de) 1977-01-07

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