US3745802A - Method for smoothing endless strips - Google Patents

Method for smoothing endless strips Download PDF

Info

Publication number
US3745802A
US3745802A US00224448A US3745802DA US3745802A US 3745802 A US3745802 A US 3745802A US 00224448 A US00224448 A US 00224448A US 3745802D A US3745802D A US 3745802DA US 3745802 A US3745802 A US 3745802A
Authority
US
United States
Prior art keywords
strip
smoothing
plane
width
bump
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
US00224448A
Other languages
English (en)
Inventor
P Senard
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of US3745802A publication Critical patent/US3745802A/en
Assigned to DURAND, MONSIEUR PIERRE 29 TER RUE CROIX DE FER 78100 SAINT GERMAIN EN LAYE reassignment DURAND, MONSIEUR PIERRE 29 TER RUE CROIX DE FER 78100 SAINT GERMAIN EN LAYE ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: SENARD, PIERRE
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • B21D1/06—Removing local distortions
    • 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
    • B23D63/00—Dressing the tools of sawing machines or sawing devices for use in cutting any kind of material, e.g. in the manufacture of sawing tools
    • B23D63/18—Straightening damaged saw blades; Reconditioning the side surface of saw blades, e.g. by grinding

Definitions

  • Patch Bumps are smoothed from endless steel strips such as saw blades, by feeding the strip past a smoothing roller of substantially less width than the width of the strip.
  • the strip and the smoothing roller are progressively or stepwise laterally displaced relative to each other, so that a bump is smoothed stepwise.
  • a sensing device moves the smoothing member into the plane of the strip substantially only when the bump is juxtaposed to the smoothing member.
  • the smoothing member can be a thin roller backed on the opposite side of the strip by further rollers of which two can be disposed in the plane of the smoothing roller or four can be spaced in pairs on opposite sides of that plane. In either event, the backup rollers are fore and aft of the smoothing roller equal distances in the direction of movement of the strip, and are simultaneously adjustable toward and away from each other.
  • the present invention makes it possible to flatten strip material by acting solely on the deformed portions of the strip material, without losing the desirable properties of the undeformed portions of the strip.
  • the flattening member acts on only a small part of the strip at the same time that the strip is displaced laterally and relative to the flattening member. This lateral displacement can be progresssive or stepwise and each increment of lateral displacement will be lessthan the width of the strip.
  • the flattening member comprises a roller or presser applied to each deformation, while the strip is supported on its opposite face by backup means in the form of rollers or reaction plates disposed a precisely predetermined distance before and after the point of action of the roller or flattening presser for the deformation in question, either in the plane of action of the roller or presser, or else in two planes parallel and symmetric with respect to the plane of action of the presser.
  • the line of action of the roller or presser relative to the backup members is preferably in a direction substantially perpendicular to a face of the strip to be smoothed.
  • the distance between the points of action of the smoother and the backup members is variable according to the nature of the material of the strip, its hardness, its mechanical resistance, its modulus of elasticity, and other factors which can influence the joint action of the smoother and the backup members.
  • a conventional detector is provided, which is spaced ahead of the smoothing member and which detects each bump and imparts to the smoothing member after a suitable time delay a displacement somewhat greater than the height of the bump to be smoothed, so that the smoothing member will impart to the material to be smoothed a displacement greater than the height of the bump, with the result that the material will return to a truly smooth condition.
  • the. smoothing member should overcompensate in order to achieve its purpose.
  • FIG. 1 is a side cross-sectional view of one embodiment of the invention, taken on the line 1-1 of FIG.
  • FIG. 2 is a view at 90 to FIG. 1, taken on the line 2-2 of FIG. 1;
  • FIG. 3 is a view similar to FIG. 2, on a reduced scale, of a modified form of the invention
  • FIG. 4 is a schematic view showing apparatus according to the present invention in its position of use
  • FIG. 5 is a view similar to FIG. 1 but showing the displacement control applied to the backup members while the smoothing member is fixed;
  • FIG. 6 is a fragmentary view of an alternative form of smoothing member or backup member that does not revolve.
  • apparatus comprising a support 7 for a smoothing member, which is displaceable transversely with respect to the strip 8 to be fed by power-driven rollers 8a lengthwise in the direction of the arrow 4.
  • a hydraulic jack whose piston rod is shown at 7'may be provided to move support 7 progressively or stepwise relative to strip 8.
  • the smoothing member may also be laterally fixed and the strip itself moved laterally, from the position b to the position 0 indicated in FIG. 2.
  • the smoothing member 9 is actuated by a hydraulic jack 10 whose piston rod 10' carries the smoothing member.
  • Jack 10 is fixed to support 7 and is actuated by a conventional detector 10" that detects the bump 8' in advance of the smoothing member and, after a time delay corresponding to the distance between detector 10" and member 9, and the speed of strip 8, moves the smoothing member into and somewhat across the plane of the strip 8 at an appropriate time so as to contact and smooth out the bump 8'.
  • Detector 10" is actuated only so long as the bump is in juxtaposition with it, and so the member 9 will be advanced only for that period of time and will then retract, and may for example be constituted and operate as in U.S. Pat. Nos. 2,020,877, 2,601,154, 2,770,975 or 3,212,354.
  • a pair of reaction rollers 11 is disposed in the same plane as the roller 9 (see FIG. 2) but on the opposite side of strip 8. These reaction or backup rollers 11 are equally spaced on opposite sides of the contact point 15 of the roller 9 with the strip 8 in the direction of strip movement (FIG. 1).
  • the rollers 11 are mounted on members 12, the members 12 being oppositely screw-threaded to receive oppositely screwthreaded portions of a screw 13 actuated by rotation of a handwheel 14 to move the rollers 11 toward and away from each other.
  • the lower ends of members 12, opposite the rollers II, are slidably received in a recess in a lower support 7.
  • FIG. 3 shows that the rollers l 1 may be disposed. symmetrically on opposite sides of the plane of roller 9, there being in this case four rollers 11 movable toward and away from each other in pairs only one of which pairs is shown in FIG. 3.
  • FIG. 4 shows the positioning of two devices according to the present invention, so as to act on bumps on opposite sides of the strip 8; and to this end, the devices are reversed relative to each other.
  • the motors 10 may be actuated by a common source of hydraulic pressure (not shown).
  • FIG. 4 indicates schematically the two detectors 10'', one for each side of strip 8, the connection of the detectors 10'' with the drive rollers whereby the speed of the strip is coordinated with the delay between the detection of a bump and the actuation of the smoothing member to correct the bump, and the connection of the detectors 10 to the smoothing members for effecting that delayed correction of the bump.
  • FIG. 5 shows that the jack may be applied instead to the backup means
  • FIG. 6 shows that the smoothing member may be in the form of a stationary presser 9'.
  • apparatus for smoothing endless strip material comprising means to move the strip material in its own plane, means bearing against the strip material to smooth out bumps in the strip material, and backup means acting on the side opposite the side of the strip opposite the side contacted by said smoothing means and in the vicinity of said smoothing means; the improvement in which said smoothing means bears against said strip across a width less than the width of the strip, and means moving the strip and said smoothing means relative to each other laterally in the direction of the width of the strip thereby progressively to smooth out bumps in the strip upon subsequent passes of the bumps past said smoothing means.
  • said smoothing means comprising a member disposed in a plane parallel to the length of the strip and perpendicular to the strip, said backup means being disposed in said plane and comprising at least a pair of members spaced apart equal distances on opposite sides of the point of application of said smoothing means to said strip.
  • said smoothing means being disposed in a plane perpendicular to the strip and parallel to the length of the strip, said backup means comprising at least a pair of members spaced equal distances on opposite sides of said plane.
  • said smoothing means comprising a roller disposed on one side of the strip
  • said backup means comprising at least a pair of rollers spaced equal distances lengthwise of the strip on opposite sides of the point of application of said smoothing means to said strip, and means for moving said backup rollers simultaneously in opposite directions lengthwise of said strip.
  • a method of smoothing bumps from an endless strip comprising moving a said endless strip in a closed path with the material of the strip moving lengthwise of itself, applying to the strip at least in the vicinity of a bump a force in a direction to smooth out the bump but over less than all the width of the strip, and moving the strip past the point of application of said force to the strip a plurality of times while applying said force at different lateral locations progressively across the width of the strip.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • A Measuring Device Byusing Mechanical Method (AREA)
  • Coating Apparatus (AREA)
  • Press Drives And Press Lines (AREA)
US00224448A 1971-02-08 1972-02-08 Method for smoothing endless strips Expired - Lifetime US3745802A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7104048A FR2124116B1 (enExample) 1971-02-08 1971-02-08

Publications (1)

Publication Number Publication Date
US3745802A true US3745802A (en) 1973-07-17

Family

ID=9071499

Family Applications (1)

Application Number Title Priority Date Filing Date
US00224448A Expired - Lifetime US3745802A (en) 1971-02-08 1972-02-08 Method for smoothing endless strips

Country Status (6)

Country Link
US (1) US3745802A (enExample)
CA (1) CA960127A (enExample)
CH (1) CH548805A (enExample)
DE (1) DE2205884A1 (enExample)
FR (1) FR2124116B1 (enExample)
SE (1) SE391135B (enExample)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1585357A (en) * 1925-06-20 1926-05-18 Tinsel Corp Of America Chenille-making machine

Also Published As

Publication number Publication date
CA960127A (en) 1974-12-31
SE391135B (sv) 1977-02-07
CH548805A (fr) 1974-05-15
FR2124116A1 (enExample) 1972-09-22
DE2205884A1 (de) 1972-09-21
FR2124116B1 (enExample) 1975-01-17

Similar Documents

Publication Publication Date Title
US3839888A (en) Tension levelling of strip
US3377896A (en) Device for trimming the edge of metal strip
US2161065A (en) Apparatus for reducing tubular blanks
JPH03264112A (ja) 帯板のサイドガイド方法及びサイドガイド装置
US3072309A (en) Strip guiding method and apparatus
GB965232A (en) Drawing and rolling method
US3745802A (en) Method for smoothing endless strips
US3788534A (en) Method and apparatus for tensioning strip
GB1137839A (en) The profiling of solid workpieces by rolling
US3724252A (en) Flattening mill
US3626746A (en) Work reducing and shaping apparatus
US3328992A (en) Method of and apparatus for obtaining flat metallic strip
US3213737A (en) Apparatus for cutting sheet material against a die with a roller
US3677055A (en) Apparatus for making shaped bores in a continuous strip
US3425249A (en) Rolling mill
US2218460A (en) Stretching machine
JPS5985314A (ja) 圧延材の蛇行防止装置
US3425342A (en) Press with deformable cylinders
GB1438628A (en) Method and apparatus for dividing and bead sealing plastics sheets and for manufacturing plastics bags
US2766645A (en) Gap rolling method
KR102718026B1 (ko) 주행하는 금속 스트립의 측면 스트립 윤곽 또는 스트립 에지의 위치를 검출하기 위한 방법 및 장치
US4182150A (en) Carriage drawing machine for uniformly drawing and longitudinally severing elongated material to be drawn
US2867141A (en) Apparatus for deforming sheets or pro
US4157777A (en) Apparatus for advancing an elongate element
GB1588247A (en) Driving apparatus for use in a strip rolling mill

Legal Events

Date Code Title Description
AS Assignment

Owner name: DURAND, MONSIEUR PIERRE 29 TER RUE CROIX DE FER 78

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:SENARD, PIERRE;REEL/FRAME:004324/0479

Effective date: 19840906