US3585887A - Method and device for dividing wire rod - Google Patents

Method and device for dividing wire rod Download PDF

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Publication number
US3585887A
US3585887A US816284A US3585887DA US3585887A US 3585887 A US3585887 A US 3585887A US 816284 A US816284 A US 816284A US 3585887D A US3585887D A US 3585887DA US 3585887 A US3585887 A US 3585887A
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United States
Prior art keywords
wire rod
loops
plane
cutting
loop
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
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US816284A
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English (en)
Inventor
Berz Gerhard
Klaus Kuppers
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Schloemann AG
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Schloemann AG
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Filing date
Publication date
Application filed by Schloemann AG filed Critical Schloemann AG
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C47/00—Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only
    • B21C47/26—Special arrangements with regard to simultaneous or subsequent treatment of the material
    • B21C47/262—Treatment of a wire, while in the form of overlapping non-concentric rings
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
    • C21D9/54—Furnaces for treating strips or wire
    • C21D9/56—Continuous furnaces for strip or wire
    • C21D9/573—Continuous furnaces for strip or wire with cooling
    • C21D9/5732—Continuous furnaces for strip or wire with cooling of wires; of rods
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S83/00—Cutting
    • Y10S83/907—Coiled wire cutting
    • 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
    • Y10T83/04—Processes
    • Y10T83/0405—With preparatory or simultaneous ancillary treatment of work
    • Y10T83/0419—By distorting within elastic limit
    • Y10T83/0424—By stretching
    • 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
    • Y10T83/323—With means to stretch work temporarily

Definitions

  • This invention relates to a method and device for cutting wire rod which is arranged in a series of loops and located on a conveyor system.
  • the loops of wire rod are formed from wire rod while it is still at the rolling temperature by a reeler, and are allowed to fall onto a moving conveyor system.
  • the series of loops of wire rod then extend in the direction of travel of the conveyor and lie on the conveyor so as to overlap one another to a greater or lesser degree, depending on the speed of the conveyor. This can help to ensure that the wire rod is cooled uniformly.
  • the loops of wire rod are passed to a location for gathering where they are gathered to form coils of wire rod.
  • the wire rod which is still at or near rolling temperature and has been formed into loops by the reeler, has not already been cut at various points before entering the reeler, either owing to the limited weight of the billets used for rolling or to the actuation of a shear located before the reeler, it is customary to cut the wire rod immediately after it leaves the reeler, ie between the reeler and the conveyor, or immediately before the gathering device, i.e. between the conveyor and the gathering device, in certain lengths depending upon the weight of coil desired.
  • Considerable difficulties are involved in separating the loops of the wire rod at each point at which it is to be cut and producing a gap on the conveyor between the series of loops of wire rod formed by cutting.
  • the loops of wire rod When the loops are collected between the conveyor and the gatherer the piled-up loops of wire rod which drop into the gatherer can no longer be gathered together to form a coil of a particularly advantageous cross-sectional shape, such as the rosette shape which is advantageous form the point of view of the transport and storage of the coils.
  • a particularly advantageous cross-sectional shape such as the rosette shape which is advantageous form the point of view of the transport and storage of the coils.
  • the loops of wire rod have to be guided or pushed individually into a predetermined position and for reasons connected with the design of the plant their position can only be changed if there is a minimum distance between the individual loops of wire rod.
  • the aim of the invention is to ensure that at each cut in the wire rod, the loop of wire rod upstream of the cut is separated from the following loop sufficiently to allow the gatherer to function satisfactorily, without causing any nonuniformity of structure in the loop of wire rod.
  • the aim of the invention may at least in part be achieved in a method of cutting wire rod which has been laid in loops com prising conveying the wire rod generally in a plane, separating loops of the wire rod by moving at least one loop out of the said plane and making a portion of the loop of the wire rod moved out of said plane accessible for cutting, and cutting the wire rod.
  • the cutting of the wire rod may occur at the portion of wire connecting the loops preceding and the loop following the point of cutting.
  • a device for cutting wire rod which has been load in loops comprising means for conveying the wire rod generally in a plane, means located along the path of the means for conveying, for separating loops of the wire rod by moving at least one loop out of the said plane and making a portion of the wire rod moved out of said plane accessible for cutting, and means for cutting the wire rod.
  • the means for separating may comprise means for raising the wire rod above said plane located at a point downstream of the means for cutting or may comprise means for lowering the loops of wire rod below said plane at a point upstream of the means for cutting.
  • the loops upstream of the means for separating are collected together because of the movement of the conveyor, so that the required gap is formed in the series of loops at the location of the means for cutting in the wire rod. This occurs advantageously at the end of the conveyor so that the structure of the loops of wire rod, which is caused by the rate of colling, is no longer influenced by the collecting together of some of the loops.
  • the raising and retaining device on the conveyor is preferably constituted by magnets which may be selectively energized and deenergized.
  • magnets should be arranged so that their height may be adjusted as this enables them to be lowered onto the loops of wire rod, i.e. brought into contact with the loops of wire rod, and their maximum lifting power to come into effect after the magnets have been energized.
  • the conveyor of the invention may be angled or bent downwards at least at one location so that the first loop of wire rod of two succeeding loops passing over the angle is dropped relatively to the following loop. This enables a hook to be used as a retaining member for the loop of wire rod following a cut and to be moved between the following loop and the first loop as these two loops of wire rod immediately adjacent the cut are conveyed over the angle in the conveyor.
  • the rod joining these two rings is severed.
  • a shear which may be of the simple pincer type or a shear having blades moved parallel to each other.
  • open blade is, according to the invention, fixed and arranged parallel to the direction of movement of the loops of wire rod and to the side of the series of loops, while the second blade is located in a lever which in turn is pivotally mounted to the side of the series of loops of wire rod and when in the position in which it is at right angles to the series of loops extends over the whole series of loops.
  • this lever arm should extend over the series of loops so that when it is moved between the two loops of wire rod which are lifted apart, it reaches the portion of wire rod which joins these two loops. This portion thus comes to rest against the lever arm or slides along the lever arm as the latter effects its pivotal movement until the lever arm has been moved to the edge of the series of loops and the said portion is located between the fixed blade and the blade carried by the said lever arm.
  • the lever arm is then pivoted further in order to cause the blades to cut through the said length of rod. After the cut has been effected, the lever ann pivots back into its initial position while the magnets or hooks hold the loop of wire rod following the cut until the desired gap has been produced in the series of loops. The hook is then pivoted back or the magnets deenergized.
  • the arrangement may also be such that one of the blades is flexed so as to be parallel to the direction of transport of the loops of wire rod and to the side of the series of wire rod loops, while the blade carrier of the second, moving blade is of a length at least equal to the diameter of the wire rod loops so that the length of wire rod connecting the two loops immediately adjacent the cut, which it is desired to sever, comes to rest, as before in the case of the pincer shear, against this blade carrier, slides also and is severed when the said blade carrier is moved on.
  • the pincer shear and the shear having blades moved parallel to each other movable transversely to the direction of movement and/or'in the direction of movement of the conveyor.
  • the shears may be arranged in the pivoting hook. The fact that these shears are arranged so as to be movable ensures that the blades or their carriers remain away from the region in which the loops of wire rod are being conveyed while the shears are not in operatron.
  • FIG. I shows a conveyor belt serving as the conveyor and having a raising and retaining device according to the invention and serving also as a cutting device;
  • FIG. 2 shows a top plan view of the device shown in FIG. I;
  • FIG. 3 shows the cutting device of FIGS. 1 and 2
  • FIG. 4 shows a general view of a plant of the type shown in FIGS. II to 3, without the cutting device;
  • FIG. 5 shows a modified form of cutting device
  • FIG. 6 shows a conveyor designed to lower the rings of wire rod, with its retaining and cutting device
  • FIG. 7 shows the device of FIG. 6 in a front view
  • FIG. 8 shows a control system for the device shown in FIGS. 1 to 7.
  • a conveyor in this case a conveyor belt I, conveys wire rod still at or near boiling temperature to a gathering location, in this case a mandrel B, as shown in FIG. 41.
  • the rod at rolling temperature has been laid by a reeler A of the Edenborn type in loops W on the receiving end of conveyor belt I, while the loops of wire rod W drop from the discharge end of belt I onto the mandrel B.
  • the wire rod loops W lie spread out and laterally extended, i.e.
  • angle levers 2 arranged on either side of the conveyor belt 1.
  • the two angle levers 2 are pivotally mounted on pins 2a, the longitudinal axes of which pins 2a coincide, the pins 2a being in turn mounted in the base frame of the conveyor belt I.
  • the angle levers 2 are acted upon by a hydraulic piston 2c pivotally mounted in the base frame of the conveyor belt 1.
  • the crosspiece 2b carries magnets 2d which may be energized and deenergized and which are arranged so as to be of adjustable height above the conveyor belt I.
  • magnets 2d which may be energized and deenergized and which are arranged so as to be of adjustable height above the conveyor belt I.
  • the point of articulation 3 of a pincer-type shear one blade 30 of which constitutes one arm of the pincer and is fixed in position in a blade carrier 3b to the side of and above the loops of wire rod W which are located in a line on the conveyor belt I while the other blade 30 constitutes the other arm of the pincer and is carried by a pivotally mounted lever 3d, the axis of pivot of which extends vertically to the plane of transport of the wire rod loops W and through the point of articulation 3.
  • the arm of the lever 3d which carries the blade 3c extends in its initial position, i.e. in the position in which it is located transversely to the direction of movement of the wire rod loops W, over the series of loops W; the lever 3d is actuated by a hydraulic piston 3e.
  • the blade carrier 3b is provided with a guide 3f which absorbs the chewing pressure" produced by the cutting action of the blades 30, 3c.
  • the lever 311 is provided with a guide surface 3g by means of which the lever 3d abuts in the guide 3f during the cutting action of the blades 3a, 30.
  • only magnets 2d are provided to increase the gap between loops of wire rod, whichwire rod is produced by rolling from billets.
  • the hydraulic piston 20 is actuated by an operating means in such a manner that the magnets 2d only raise the wire rod loops produced from the second of two billets which are reduced to wire rod gauge one immediately after the other and laid in loops on the conveyor, the said magnets holding these loops until the desired gap has been formed between the last loop of the first billet and the first loop of the second one.
  • the pincer-type shear is replaced by a shear 6 having blades 6a and 6b moved parallel to each other.
  • the blade 6b and its carrier are movable in guides 60 above the conveyor and towards the blade 60 which itself is arranged to one side and above the series of loops of wire rod and is fixed in position.
  • the drive for the carrier of the blade 6b is provided by a hydraulic piston 6d mounted in the housing of the shear 6.
  • the whole shear 6 is, moreover, slidable in further guides be in the direction of movement of the conveyor 1, so that the blades 6a and 6b may be positioned exactly at the point at which the wire rod loops w immediately adjacent the cut in the series of loops of wire rod on the conveyor are raised apart and the wire rod connecting the said loops is to be cut through. This is effected in the same manner as in the case of the pincer shear shown in FIGS. 1 to 3.
  • the blade carrier for the blade 6b is at least equal in length to the radius of the loops of wire rod W.
  • FIGS. 6 and 7 there is a point la in the conveyor where the foremost loop of two loops of wire rod W-as viewed in the direction of travel of the conveyoris lowered.
  • This lowering may be effected, for example by providing an angle or bend in the conveyor or, as is shown in dotted lines in the figure, by means of two conveyor belts arranged at different heights and cooperating with each other, or by sections of the conveyor so arranged. It is then possible to move a hook 7, which is pivotally mounted in a frame 8 above the conveyor and which is driven by a hydraulic piston 7a, between the two loops of wire rod W which have thus been raised apart.
  • the hook 7 is pivoted back by means of the hydraulic lever 7a, i.e., the loops of wire rod which follow the cut are released and can be moved onward by the conveyor.
  • the hook 7 also contains a shear with a fixed lower blade 7b and an upper blade 70 which is able to move in parallel with the lower blade 7b and is driven by a hydraulic piston 7d
  • the hook 7 carries a stop member 72, against which the loop of wire rod W following the cut comes to rest when the hook grips the said loop W.
  • the stop member 74 is so arranged that the loop of wire rod W which abuts thereagainst at the same time lies between the blades 71; and 7c and may be severed from the preceding wire rod loop by actuation of the hydraulic piston 7d, when these two loops are connected together.
  • the severing operation of the blades 7d and 7c also initiates the spacing at the location of the cut.
  • the loop of wire rod which abuts against thisstop As shown in FIG. 8, an infrared detector 9 is located, as
  • a second infrared detector is located, as viewed in the direction of movement of the conveyor, before the detector 9, at a distance which is greater than the maximum gap occurring between the length of wire rod.
  • the detector 10 registers the individual loops W of wire rod and, when a certain distance between the loops is exceeded, issues a command to the detector 9 which actuates the magnets 2d or the hook 7 after the appropriate gap commencement has been registered. If the embodiment, where the normal gap between loops is between and 50 mm, the detector 10 issues a command to the detector 9 when the gap between loops is 200 mm. or when the time interval between two loops W of wire rod is equivalent thereto. Since each loop of wire rod W is registered by the detector 10 twice, a barrier is provided on the detector 10 and erases the second recording of a wire rod loop W when this occurs without the intervening registration of another loop of wire rod after the first registration.
  • the barrier is composed of a timing member which erases a second registration when this registration occurs at an interval of time which corresponds to a certain loop diameter and remain constant for identical operating conditions. This prevents the magnets 2d and the hook 7, which do not operate after the necessary gap has been formed, form being actuated between the first registration of a loop of wire rod W and the first registration of the following loop W, i.e. the detector 10 is prevented from issuing two commands in this case.
  • a method of cutting wire rod which has been laid in loops comprising conveying the wire rod generally in a plane, separating loops of the wire rod by raising at least one loop above said plane and making a portion of the wire rod raised out of said plane accessible for cutting, and cutting the wire rod upstream of the point at which said at least one loop is raised above said plane.
  • a device for cutting wire rod which has been laid in loops, comprising means for conveying the wire rod generally in a plane, means located along the path of the means for conveying for separating loops of the wire rod by raising at least one loop above the said plane and making a portion of the wire rod raised out of said plane accessible for cutting, and means for cutting the wire rod upstream of said means of separating.
  • a method of cutting wire rod which has been laid in loops comprising conveying the wire rod generally in a plane, separating loops of the wire rod by lowering at least one loop below said plane and making a portion of the wire rod lowered out of said plane accessible for cutting, and cutting the lowered wire rod downstream of the point at which said at least one loop is lowered below said plane.
  • a device for cutting wire rod which has been laid in loops comprising means for conveyin the wire rod generally In a plane, means located along the pat of the means for conveying for separating loops of the wire rod by lowering at least one loop below said plane and making a portion of the wire rod lowered below said plane accessible for cutting, and means for cutting the wire rod downstream of said means for separating.
  • a device as claimed in claim 7, wherein the means for engaging comprises a hook-shaped member.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Winding, Rewinding, Material Storage Devices (AREA)
US816284A 1968-04-18 1969-04-15 Method and device for dividing wire rod Expired - Lifetime US3585887A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19681752196 DE1752196A1 (de) 1968-04-18 1968-04-18 Verfahren und Vorrichtung zum Unterteilen einer Windungslage

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DE (1) DE1752196A1 (enExample)
FR (1) FR2006456A1 (enExample)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3756289A (en) * 1971-01-21 1973-09-04 Kocks Gmbh Friedrich Apparatus and methods for cutting rolled rod
US3776076A (en) * 1971-08-21 1973-12-04 A Hauck Wire rod dividing apparatus
US3838617A (en) * 1973-08-29 1974-10-01 Penetred Corp Art of shearing a helical coil
US4995251A (en) * 1989-04-26 1991-02-26 Hamburger Stahlwerke Gmbh System for trimming leading and trailing ends from a wire coil
US6227091B1 (en) * 1998-10-07 2001-05-08 Sms Schloemann-Siemag Ag Outer-turn trimmer for wire coils on hook conveyor
US20070033977A1 (en) * 2005-08-11 2007-02-15 Sms Meer Gmbh Wire-rolling apparatus
US20190291168A1 (en) * 2018-03-20 2019-09-26 Primetals Technologies USA LLC Automated wire rod trimming station

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1182874B (de) * 1959-12-17 1964-12-03 Electricite De France Vorrichtung zum Messen der Temperatur in Kanaelen
DE2108907A1 (de) * 1971-02-25 1972-08-31 Krupp Gmbh Vorrichtung zum Speichern und Schneiden von Walzdraht
DE4118958A1 (de) * 1991-06-08 1992-12-10 Thaelmann Schwermaschbau Veb Verfahren und vorrichtung zum schopfen von walzdraht

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3176385A (en) * 1962-11-13 1965-04-06 Morgan Construction Co Apparatus for and method of collecting and dividing rod into bundles

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3176385A (en) * 1962-11-13 1965-04-06 Morgan Construction Co Apparatus for and method of collecting and dividing rod into bundles

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3756289A (en) * 1971-01-21 1973-09-04 Kocks Gmbh Friedrich Apparatus and methods for cutting rolled rod
US3776076A (en) * 1971-08-21 1973-12-04 A Hauck Wire rod dividing apparatus
US3838617A (en) * 1973-08-29 1974-10-01 Penetred Corp Art of shearing a helical coil
US4995251A (en) * 1989-04-26 1991-02-26 Hamburger Stahlwerke Gmbh System for trimming leading and trailing ends from a wire coil
US6227091B1 (en) * 1998-10-07 2001-05-08 Sms Schloemann-Siemag Ag Outer-turn trimmer for wire coils on hook conveyor
US20070033977A1 (en) * 2005-08-11 2007-02-15 Sms Meer Gmbh Wire-rolling apparatus
US7340932B2 (en) * 2005-08-11 2008-03-11 Sms Meer Gmbh Wire-rolling apparatus
US20190291168A1 (en) * 2018-03-20 2019-09-26 Primetals Technologies USA LLC Automated wire rod trimming station

Also Published As

Publication number Publication date
DE1752196A1 (de) 1971-05-13
FR2006456A1 (enExample) 1969-12-26

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