US3429163A - Plant for straightening and severing strip metal - Google Patents

Plant for straightening and severing strip metal Download PDF

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Publication number
US3429163A
US3429163A US601388A US3429163DA US3429163A US 3429163 A US3429163 A US 3429163A US 601388 A US601388 A US 601388A US 3429163D A US3429163D A US 3429163DA US 3429163 A US3429163 A US 3429163A
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United States
Prior art keywords
straightening
strip
plant
piston
rolls
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Expired - Lifetime
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US601388A
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English (en)
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Curt Munchbach
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Individual
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Individual
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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
    • B21D1/00—Straightening, restoring form or removing local distortions of sheet metal or specific articles made therefrom; Stretching sheet metal combined with rolling
    • B21D1/02—Straightening, restoring form or removing local distortions of sheet metal or specific articles made therefrom; Stretching sheet metal combined with rolling by rollers

Definitions

  • FIG. 2 gm Sheet 2 012 N VEN TOR.
  • This invention relates to a plant for straightening strip metal and for severing the strip while the same is at a standstill.
  • Straightening and severing machines are known in which the stationary shearing unit is preceded by a nondriven straightening unit or a continuously driven straightening unit. In the latter case, a loop is formed in the strip between the straightening and shearing units.
  • Stationary and displaceable gripping jaws are also provided between the units and impart an intermittent advance to the strip in steps which are in accordance with the lengths of the sections to be severed from the strip. The engagement of the gripping jaws with the strip results in impression marks on the strip. These marks are not tolerable in view of the high finish required for sheets and plates.
  • the intermittent drive may be imparted to the straightening rolls by an endles belt, which is intermittently moved by a piston having an adjustable stroke.
  • the endless belt may be intermittently advanced by means of stationary and displaceable gripping jaws by a piston and may drive the straightening rolls through an intermediate transmission.
  • the endless belt may be reciprocated by a piston and a roller ratchet mechanism may be provided to transmit only the movement in the strip-advancing sense to the straightening rolls.
  • the intermittent drive may be imparted to the straightening rolls by a rack and pinion drive, which is intermittently rotated in one direction by a piston having an adjustable stroke.
  • the rack-and-pinion mechanism may be operatively connected to the straightening rolls by a roller ratchet mechanism which transmits only the movement in the strip-advancing sense or two rac -and-pinion mechanisms may be provided, which are driven by two pistons and connected to the straightening rolls by rectifying roller ratchet mechanisms, which are connected in series or parallel and transmit movement to the straightening rolls only during the strokes of the respective pistons in the strip-advancing sense.
  • the time required for the return stroke of one piston is utilized for the stripadvancing stroke of the other piston and consequently for the advance of the strip when the out has been effected.
  • FIG. 1 is a diagrammatic view showing in elevation a straightening and severing plant according to the invention, comprising means for driving the straightening rolls with the aid of an endless belt.
  • FIG. 2 is a diagrammatic view showing also in elevation a straightening and severing plant according to the invention with means for driving the straightening rolls with the aid of a roller ratchet mechanism.
  • FIGS. 3 and 4 are diagrammatic views showing again in elevation straightening and shearing plants according to the invention with means for driving the straightening rolls with the aid of roller ratchet mechanisms.
  • a strip 1 is advanced from a coil 2 through a straightening unit 3 to a stationary shearing machine 4.
  • the machine 4 is conventional and is operated in the well known manner.
  • the straightening rolls 3 are intermittently driven from an endles belt 5 by an intermediate transmission device 6.
  • the endless belt 5 is advanced in steps of adjustable length by a piston 7 with the aid of stationary and displaceable pairs of operative gripping jaws 8 and 9, which cooperate in known manner.
  • the length of the steps is adjusted by an adjustable stop 10 which is manually shiftable along its support. This adjustment enables a selection of the length of the sections to be severed from the strip.
  • the endless belt 5 may be perforated to act on a drive sprocket 6.
  • the belt may be reciprocated by the piston and the sprocket may be replaced by a roller ratchet mechanism for transmitting the fonward stroke to the straightening rolls. This is not shown in FIG. 1.
  • a strip 11 is advanced from a coil 12 through straightening rolls 13 to a stationary shearing machine 14.
  • An intermittent advance in steps of predetermined length is imparted to the strip 11 by the straightening rolls 13, which are driven by a piston 17 by means of a rack and pinion mechanism 15.
  • a roller ratchet mechanism 18, 19 is operatively connected to the rolls and is arranged to transmit only the forward stroke.
  • the length of the steps is adjusted by an adjustable stop 20 so that the length of the sections to be severed from the strip can be adjusted.
  • a strip 21 is withdrawn from a coil 22 and advanced to a stationary shearing machine 24 by straightening rolls 23 and two rack and pinion mechanisms 25, 26 are advanced in steps by pistons 27, 28 and drive series-connected stepping mechanisms 29, 30, from which the drive is transmitted by an intermediate transmission device 31 to the straightening rolls.
  • the length of the stroke, determining the length of the sections severed from the strip, is adjusted by adjustable stops 32, 33.
  • one piston may eifect with the aid of one rack and stepping mechanism an advancing step of the strip during the forward stroke of such piston, whereas the other piston and its rack and stepping mechanism perform a return stroke.
  • This plant 'Will operate more efiiciently as the strip is arrested only for the short time required for severing.
  • the roller ratchet mechanisms 29, 30 are connected in series, the mounting of the rack and pinion mechanisms may also be changed, as is indicated in dash and dot lines in FIG. 3.
  • FIG. 4 shows a similar arrangement of parts 21 to 24 whereas roller ratchet mechanisms 29a, 30a acting on the intermediate drive 31 are arranged in parallel. Parts 25a to 28a and 32a and 33a are arranged to meet this situation.
  • a plant for straightening and severing strip metal comprising a stationary shearing machine, a strightener comprising straightening rolls, and drive means for imparting to said straightening rolls and intermittent drive so as to advance a strip in engagement with said straightening rolls in steps of predetermined length, said drive means comprising an endless belt and a piston operatively connected to the belt for intermittently advancing said belt.
  • said drive means further comprises stationary and displaceable gripping jaws for engaging and intermittently advancing said belt under the action of said piston, and an intermediate transmission device operatively connecting said belt to said straightening rolls.
  • said drive means comprise a second piston, said pistons being reciprocable substantially in phase opposition, and two transmission devices, each of which is operatively connected between one of said pistons and said straightening rolls and adapted to drive said rolls only during the stroke of the respective piston in a strip-advancing sense, each of said transmission devices comprising a rack and pinion mechanism coupled to the associated piston and a ratchet roller mechanism coupled to said straightening rolls.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wire Processing (AREA)
  • Straightening Metal Sheet-Like Bodies (AREA)
  • Shearing Machines (AREA)
US601388A 1966-01-08 1966-12-13 Plant for straightening and severing strip metal Expired - Lifetime US3429163A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEU0012345 1966-01-08

Publications (1)

Publication Number Publication Date
US3429163A true US3429163A (en) 1969-02-25

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Family Applications (1)

Application Number Title Priority Date Filing Date
US601388A Expired - Lifetime US3429163A (en) 1966-01-08 1966-12-13 Plant for straightening and severing strip metal

Country Status (7)

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US (1) US3429163A (is")
AT (1) AT265818B (is")
BE (1) BE691303A (is")
DE (1) DE1552695A1 (is")
FR (1) FR1507494A (is")
GB (1) GB1126548A (is")
SE (1) SE300174B (is")

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3757552A (en) * 1970-12-22 1973-09-11 Evg Entwicklung Verwert Ges Machine for straightening and cutting metal wire or strip into pieces
US4959986A (en) * 1989-09-01 1990-10-02 Dana Corporation Apparatus for cutting a wide sheet of metal material into a plurality of narrow strips
US20040069035A1 (en) * 2000-12-27 2004-04-15 Jacques-Yves Bourgon Method for real-time adjustment of a planisher
CN107984017A (zh) * 2017-12-28 2018-05-04 重庆坤钰映辉汽车零部件有限公司 一种板材定长切割装置
CN108555195A (zh) * 2018-01-15 2018-09-21 湖南劳动人事职业学院 一种全自动空间几字形钢筋马凳折弯机
CN110238326A (zh) * 2019-06-28 2019-09-17 惠州市兴声科技有限公司 线材裁切机构
CZ308632B6 (cs) * 2014-10-20 2021-01-20 Berndorf Band Gmbh Způsob a zařízení pro rovnání kovového pásu a kovový pás vyrobený uvedeným způsobem a zařízením

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US458780A (en) * 1891-09-01 Machine for cutting wire to lengths
US587520A (en) * 1897-08-03 Petee k
US602931A (en) * 1898-04-26 batey
US2165917A (en) * 1938-03-19 1939-07-11 Robertson Co H H Method and apparatus for producing steel sheets

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US458780A (en) * 1891-09-01 Machine for cutting wire to lengths
US587520A (en) * 1897-08-03 Petee k
US602931A (en) * 1898-04-26 batey
US2165917A (en) * 1938-03-19 1939-07-11 Robertson Co H H Method and apparatus for producing steel sheets

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3757552A (en) * 1970-12-22 1973-09-11 Evg Entwicklung Verwert Ges Machine for straightening and cutting metal wire or strip into pieces
US4959986A (en) * 1989-09-01 1990-10-02 Dana Corporation Apparatus for cutting a wide sheet of metal material into a plurality of narrow strips
US20040069035A1 (en) * 2000-12-27 2004-04-15 Jacques-Yves Bourgon Method for real-time adjustment of a planisher
US7032420B2 (en) * 2000-12-27 2006-04-25 Usinor Method for real-time adjustment of a planisher
CZ308632B6 (cs) * 2014-10-20 2021-01-20 Berndorf Band Gmbh Způsob a zařízení pro rovnání kovového pásu a kovový pás vyrobený uvedeným způsobem a zařízením
CN107984017A (zh) * 2017-12-28 2018-05-04 重庆坤钰映辉汽车零部件有限公司 一种板材定长切割装置
CN107984017B (zh) * 2017-12-28 2024-01-12 重庆坤钰映辉汽车零部件有限公司 一种板材定长切割装置
CN108555195A (zh) * 2018-01-15 2018-09-21 湖南劳动人事职业学院 一种全自动空间几字形钢筋马凳折弯机
CN108555195B (zh) * 2018-01-15 2019-11-08 湖南劳动人事职业学院 一种全自动空间几字形钢筋马凳折弯机
CN110238326A (zh) * 2019-06-28 2019-09-17 惠州市兴声科技有限公司 线材裁切机构

Also Published As

Publication number Publication date
AT265818B (de) 1968-10-25
FR1507494A (fr) 1967-12-29
BE691303A (is") 1967-05-29
DE1552695A1 (de) 1970-04-16
SE300174B (is") 1968-04-08
GB1126548A (en) 1968-09-05

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