EP0059995A2 - Vorrichtung zum Wiederherstellen der Form von gebrauchten profilierten Blechen - Google Patents

Vorrichtung zum Wiederherstellen der Form von gebrauchten profilierten Blechen Download PDF

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Publication number
EP0059995A2
EP0059995A2 EP82200200A EP82200200A EP0059995A2 EP 0059995 A2 EP0059995 A2 EP 0059995A2 EP 82200200 A EP82200200 A EP 82200200A EP 82200200 A EP82200200 A EP 82200200A EP 0059995 A2 EP0059995 A2 EP 0059995A2
Authority
EP
European Patent Office
Prior art keywords
rollers
sheets
sheet
profile
profiled
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.)
Withdrawn
Application number
EP82200200A
Other languages
English (en)
French (fr)
Other versions
EP0059995A3 (de
Inventor
Sylvain Christen
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.)
ENGTECH SA
Original Assignee
ENGTECH SA
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 ENGTECH SA filed Critical ENGTECH SA
Publication of EP0059995A2 publication Critical patent/EP0059995A2/de
Publication of EP0059995A3 publication Critical patent/EP0059995A3/de
Withdrawn legal-status Critical Current

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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
    • B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
    • B21D5/06—Bending sheet metal along straight lines, e.g. to form simple curves by drawing procedure making use of dies or forming-rollers, e.g. making profiles
    • B21D5/08—Bending sheet metal along straight lines, e.g. to form simple curves by drawing procedure making use of dies or forming-rollers, e.g. making profiles making use of forming-rollers
    • 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
    • B21D1/06—Removing local distortions
    • B21D1/10—Removing local distortions of specific articles made from sheet metal, e.g. mudguards

Definitions

  • the present invention relates to a device for reforming profiled sheets, such as sheet piling, after use on one or more occasions.
  • Civil engineering uses sheet piles which are profiled steel sheets during excavation for laying pipe foundations or similar works in order to support and prevent sinking of the walls of the ditch. These sheets are introduced vertically into the ground by mechanical means before the start of work. After the end of the work these sheets are removed as far as they can be reused. Those that are not deformed can be reused. Those that have been deformed either because of the nature of the soil or because they were used repeatedly must be reformed.
  • GB patent 1,183,331 describes a device for reforming the profile of such sheets.
  • the device in question includes four rollers arranged horizontally, profiled and driven in rotation. Two of them act on one side of the deformed sheet and the others on the other side. The first three are arranged in a triangle and exert on the sheet during its advancement a pressure which deforms the sheet longitudinally by bending it in one direction. The fourth roller deforms the sheet longitudinally by bending it in the opposite direction so that at the outlet of the device the sheet has a straight longitudinal profile. It is possible to move vertically and independently the two upper rollers to vary the radii of curvature of deformations imparted by the rollers to the sheet.
  • This device makes it possible to reform profiled sheets, such as sheet piling, provided that the transverse profile of two lateral edges of the sheets is straight and not folded in the shape of a hook.
  • the lateral edges of certain sheets are folded, in different forms, to allow the sheets to be hooked together when placed in the ground and thus prevent the sheets from moving laterally or tilting inside the ditch by sliding relative to each other under the pressure exerted by the wall of the ditch.
  • it is often necessary to clean the interior of these profiled lateral edges after use because, depending on the condition and the nature of the soil in which they were embedded, residues of this soil can cause significant deformation and compromise the connection between the sheets, during a new installation. Such sheets are usually lost because it is not possible to reform the profile of their side edges.
  • the present invention overcomes these drawbacks.
  • the device according to the invention is characterized in that it comprises means for reforming the profile of the lateral edges of sheet metal comprising two rolling rollers each provided with a groove and two rolling dies cooperating with the rolling rollers that it comprises means for driving sheets through the means for reforming the profile of the lateral parts.
  • Each rolling roller with the corresponding matrix reform the profile of a lateral edge and the matrix which reform the interior part of the profile assumes at the same time the cleaning of this part by pushing the residues along the part inside which they find themselves.
  • the entire device comprises (fig. 1) a first table 1 disposed on the upstream side of the device, one seems 3 of the other rollers 6, 7, 8 and 9 which reform the profile of the deformed sheet, the means 4 for reforming the profile of the lateral parts, the device 5 ensuring the advancement of the sheets and a second table 2 receiving the reformed sheets.
  • the drive device 5 comprises two profiled rollers 10 and 11, at least one of which is driven in rotation by means of a chain, not shown, which is itself driven by the drive device of four main rollers. 6,7,8 and 9.
  • the means 4 for reforming the profile of the lateral edges comprise for each edge a rolling roller 21 (fig.2) having a groove whose profile matches the outside of the profile to be reformed from the sheet 22 and a rolling die 20 cooperating with the roller 21.
  • the roller 21 and the die 20 are mounted on an axis 14, itself fixed vertically on two extendable arms 12 and 13. The two arms are mounted on a column 16 fixed to the ground.
  • the axis 14 (fig. 4) is composed of a threaded part 30, a part 26 whose cross section is rectangular, followed by a shoulder 27, a cylindrical part 28 and finally a second shoulder 29.
  • the threaded part is used for fixing the axis on the extendable arm 12 by a bolt 15. It is possible instead of the bolt 15 to have a through pin an axis hole 14.
  • the part 26 having a rectangular section serves first of all to prevent the rotation of the matrix 20 relative to the axis, and it is provided with a rectangular hole corresponding to this part 26 of the axis 14, and then of prevent rotation of the axis 14 because the hole through which the axis 14 crosses the arm 12 is also rectangular.
  • the shoulder 27 serves as a stop for the die 20 so that it does not rest on the roller 21 which can rotate freely.
  • the diameter of the cylindrical part 28 corresponds to the diameter of the hole in the roller 21.
  • the shoulder 29 serves as a stop for the axis 14 against the second arm 13.
  • Two springs 24 and 25 working in compression ensure the suspension of two elements of rolling 20 and 21 and allowing them to have a certain play between them to more easily follow certain irregularities of the sheet to be reformed.
  • two hooks 17 and 18 fixed respectively on the ends of the arms 12 and 13 are connected to the corresponding hooks 17 'and 18' by springs 19.
  • the springs 19 allow on the one hand the adaptation of the reforming system of the lateral edges to sheets of different widths and on the other hand the auto-adjustment of the device to the correct width because after the passage of a sheet 22 through the set of four rollers 6,7,8, and 9 the width of a sheet is far from being known with precision.
  • this device can function for any profile of the lateral edges by simply replacing the roller and the rolling die with the elements corresponding to the profile to be reformed.
  • the operation of the device is as follows. After passage of the deformed sheet 22 through the four rollers 6,7,8 and 9 its transverse end, which has been previously cut by a saw or shears to present a well delimited edge having no tears, is engaged by its two lateral ends between the rollers and the corresponding dies. The distance between the axes 14 and 14 ′ is adjusted at the start so that it corresponds to the nominal width of the sheets to be reformed. At the beginning the sheet is pushed by the rollers 6,7,8 and 9 and then its advancement is ensured by the rollers 10, 11. When advancing the sheet 22 its lateral ends are reformed by the rollers 21 and 21 ' and the dies 20 and 20 'which simultaneously clean the inside of the profile.
  • the transverse faces of the dies 20 and 20 ' are slightly curved to facilitate the engagement of the lateral edges each time a sheet is presented in front of the device.
  • the advancement of the sheet can be ensured by the rollers 21 and 21 ′ which are provided for this purpose with drive means optionally supplied by the group ensuring the drive of rollers 6,7,8 and 9.
  • drive means optionally supplied by the group ensuring the drive of rollers 6,7,8 and 9.
  • the device is capable of reforming sheets of different thicknesses.
  • the roller 6 has been provided with means making it possible to move it horizontally and the roller 8 with means allowing it to move in an oblique direction preferably at 45 ° so that, after displacement of the rollers 6 and 8, the triangle whose vertices are the three rollers 6,7 and 8 is an equilateral triangle. It is preferable that the upper roller 9 can be moved in two directions parallel and perpendicular to the direction of advancement of a sheet and thus have greater flexibility to adjust the curvature of the deformation imparted by the first three rollers.
  • the means for reforming the profile of the lateral edges of a sheet can be adapted to any other device making it possible to reform the transverse profile of a sheet but not that of these lateral edges.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Soil Working Implements (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Bulkheads Adapted To Foundation Construction (AREA)
EP82200200A 1981-03-11 1982-02-19 Vorrichtung zum Wiederherstellen der Form von gebrauchten profilierten Blechen Withdrawn EP0059995A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH1650/81 1981-03-11
CH165081 1981-03-11

Publications (2)

Publication Number Publication Date
EP0059995A2 true EP0059995A2 (de) 1982-09-15
EP0059995A3 EP0059995A3 (de) 1983-05-25

Family

ID=4215416

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82200200A Withdrawn EP0059995A3 (de) 1981-03-11 1982-02-19 Vorrichtung zum Wiederherstellen der Form von gebrauchten profilierten Blechen

Country Status (3)

Country Link
EP (1) EP0059995A3 (de)
DK (1) DK105382A (de)
NO (1) NO820772L (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105728515A (zh) * 2016-03-03 2016-07-06 安徽工业大学 一种热轧u型钢板桩的成形方法

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1183331A (en) * 1966-02-28 1970-03-04 Neagron Construction Ltd Improvements in or relating to Machines for Re-shaping Deformed Sheets, Strips and like Members
GB1214638A (en) * 1967-08-16 1970-12-02 Neagron Construction Ltd Improvements in or relating to machines for re-shaping deformed sheets, strips and like members
US3902648A (en) * 1973-12-28 1975-09-02 Interlake Inc Variable width strip conditioner
US3906765A (en) * 1974-11-20 1975-09-23 Boeing Co Numerically controlled contour forming machine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105728515A (zh) * 2016-03-03 2016-07-06 安徽工业大学 一种热轧u型钢板桩的成形方法

Also Published As

Publication number Publication date
NO820772L (no) 1982-09-13
EP0059995A3 (de) 1983-05-25
DK105382A (da) 1982-09-12

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Inventor name: CHRISTEN, SYLVAIN