CN103813867B - For the equipment of the defect in filtering metal wire - Google Patents
For the equipment of the defect in filtering metal wire Download PDFInfo
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- CN103813867B CN103813867B CN201280043492.1A CN201280043492A CN103813867B CN 103813867 B CN103813867 B CN 103813867B CN 201280043492 A CN201280043492 A CN 201280043492A CN 103813867 B CN103813867 B CN 103813867B
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- capstan winch
- wire rod
- axle
- shaft coupling
- equipment
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C1/00—Manufacture of metal sheets, metal wire, metal rods, metal tubes by drawing
- B21C1/02—Drawing metal wire or like flexible metallic material by drawing machines or apparatus in which the drawing action is effected by drums
- B21C1/12—Regulating or controlling speed of drawing drums, e.g. to influence tension; Drives; Stop or relief mechanisms
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C51/00—Measuring, gauging, indicating, counting, or marking devices specially adapted for use in the production or manipulation of material in accordance with subclasses B21B - B21F
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- Mechanical Engineering (AREA)
- Metal Extraction Processes (AREA)
Abstract
Disclose a kind of equipment, described equipment can be arranged on existing coil winder or drawing machine, the defect in energy filtering metal wire such as steel wire.Described equipment comprises the torque be between the first capstan winch (206) and the second capstan winch (212) in mechanical force path and produces shaft coupling.During use, the excircle speed of described second capstan winch (212) is greater than the excircle speed of described first capstan winch (206).Torque produces shaft coupling can be positioned at the first (or second) axle and between the capstan winch be associated with described first (or second) axle, between the first capstan winch and the second capstan winch or between the first capstan winch and the second capstan winch axle separately.By using adjustable magnetic shaft coupling, the test force be applied to when wire rod is directed into the second capstan winch from the first capstan winch wire rod at random can be regulated.Described equipment also can be embodied as the separate unit that can easily be arranged on coil winder or drawing machine.Described equipment can be driven by the wire rod pulled out from the second capstan winch.
Description
Technical field
The present invention relates to a kind of equipment, for the wire rod defect in during bracing wire or afterwards filtering metal wire (preferred steel wire).Described equipment may be embodied as the optional equipment of existing drawing machine, or described equipment can be placed on coil winder, to detect damage, weakness or other wire rod defects during rewinding.Also disclose and operate and regulate the method for described equipment.
Background technology
Metal wire, especially high strength is (more than 2500N/mm
2), thin footpath (thinner than 0.30mm) steel wire, be applied to various application more and more.Their application is no longer confined to the steel cord for strengthening such as truck tyre, and in this applications, steel wire strengthens the rigidity of tire belt or strengthens the intensity of carcass.The wire rod in high strength, thin footpath has been used in following application: for strengthening the steel cord of lift car elevator belt; Machine applications, such as, strengthen Timing Belt; Even be used as sawline and come that sawing is valuable, hard and crisp material.
The steel wire in preparation high strength and thin footpath brings many specific questions.The wire rod (such as the preparation of the wire rod of crane rope) of low-intensity, particle size wants much loose to material defects.Such as, the impact of the non deformable field trash existed in wire rod on thick low-intensity wire rod is less than the impact on thin high-strength wire material, because non deformable field trash is much smaller in thin high-strength wire material relative to the ratio in thick low-intensity wire rod of the area shared by wire rod total cross section.Due to the broken wires in bracing wire process, this field trash can cause production loss, when this field trash out in the cold by checking and being present in final products time even can cause more serious consequence.Such as, the broken string in elevator hoist band can make the elevator belt premature failure with this broken string, because the end of a thread can start to deviate from elevator belt.In online sawing, unexpected thread breakage can cause process to stop completely, and the time and materials that loss is valuable.
Therefore the motto of applicant is " fracture is retained in Bekaert ", that is, preferably in wire rod production process or detect soon afterwards and eliminate the weakness in wire rod, but not allow consumer or end user face loss or even safety problem.
Had the system (these systems of major part are based on magnetic induction measurement) for the internal injury of detection line material or surface damage, but these systems only indicate whether have problem, and can not problem be eliminated.The elimination problem weakness that filtering is all preferably by the fracture at weakness place realizes.This can be realized by following: by making the wire rod of whole length continuously across testing arrangement, makes wire rod on certain testing length, stand minimum test tension force.So, the often place fracture occurred in test process just eliminates the fracture that consumer or end user finally run into.
Describe the equipment making wire rod carry out " online extension test " after the drawing soon continuously.See such as JP2000167618, wherein, wire rod draws and send on two sheaves, and one fixing and another is movable, extraordinary image pulley block system.By static load, pneumatic or hydraulic actuation system, movable sheave applies load, thus produce tension in wire rod.The tensile stress level applied is applied to reaching about between 70% of tension force (when relating to sawline, this is the tension force be applied to by saw on sawline) on wire rod and broken wires load between the operating period.
The alternate application of same theory of mechanics is described in JP2007118067.By the level of power is increased to broken wires load 40% to 90% between, it is said the stretching residual stress that can reduce in wire rod.
The problem of this sheave system is that they need space after drawing machine or wire rod rewinding machine.Tensioning control system for controlling Tensity size also can take than desired larger space.Therefore inventor seeks the solution taking less space, and this solution can easily be retrofitted on existing drawing machine and/or coil winder, and wherein, tension force controls also very simple.
Summary of the invention
Main purpose of the present invention is to provide a kind of equipment, and described equipment, by producing the defect in the metal wire (preferred steel wire) after filtering drawing of rupturing at fault location, makes defect can not arrive consumer or end user.Another object is to provide a kind of equipment, described facility compact and can being easily retrofitted on existing drawing machine and/or coil winder.Another object is to provide the simple system of a kind of control.Last object of the present invention is to provide a kind of method of operating said equipment.
According to a first aspect of the invention, claimed a kind of equipment.Described equipment comprises two capstan winches.In this application, " capstan winch " is the sheave (imagination cylindrical shell) with flat surfaces, and the complete turn of wound thereon wire rod or circle segment, for being delivered to the wire rod of advancing on said surface by power by the friction between wire rod and surface.The flat surfaces of capstan winch limits certain diameter.These capstan winches regularly or to be rotatably installed on axle and can to rotate on axle.Being meant to " regularly " can not relatively rotate between axle with capstan winch, and being meant to of " rotatable " can rotate between capstan winch with axle relatively.
Described equipment comprises: first capstan winch with the first capstan winch diameter D1, is arranged on the first axle; And there is second capstan winch of the second capstan winch diameter D2, be arranged on the second axle.Term " first " and " second " mean order, " the first capstan winch " should be during use wire rod advance further (can be through pulley, sheave and other devices) to the capstan winch first arrived before the second capstan winch (wire rod leaves described equipment after the second capstan winch).These axles itself are rotatable, and can be driven or non-driven.Being meant to of " driven " applies rotary power (that is, torque) from reference system on axle (such as, by the torquematic transmission of direct driving motor, belt, worm and gear, gear-box or any other kind).Being meant to axle and at any time can rotating freely, such as, because axle is arranged on bearing relative to reference system of " non-driven ".
During use, axle rotates (when non-driven axle) with angular speed (being expressed as " Radian per second ") or is rotated (at driven shaft), the first axis angular rate W1, and the second axis angular rate W2.Select angular speed and diameter, make the peripheral speed of the second capstan winch when there is not any wire rod be greater than the peripheral speed of the first capstan winch, or D2 × W2/2 is greater than D1 × W1/2, therefore D2 × W2 is also greater than D1 × W1.Angular speed can be applied on each axle respectively, and such as, two axles are driven with angular speed W1 and W2 limited by respective motor.It is further preferred that the angular speed of two axles is coupled each other with fixing gearratio W1:W2.If drive the first axle with angular speed W1, so the second axle can rotate with angular speed W2, or vice versa.Particularly preferred embodiment is, does not have axle to be driven, but two axles are coupled each other with fixing gear ratio W1:W2.In this way, described equipment can as by be pulled through wire rod drive separate unit be introduced in existing wire rod path.
The feature of described filtering equipment is, one of described first capstan winch or the second capstan winch are fixedly secured on the first corresponding axle or the second axle, and described second capstan winch produces shaft coupling by means of torque and connects with the first capstan winch.
The operation principle of described equipment is as follows: along with in wire rod access to plant, and wire rod is maintained on the first capstan winch with the form being wound into wire rod circle on the first capstan winch.Wire rod keeps enough tension force (referring to hereafter), makes not skid between wire rod and the first capstan winch.Then wire rod is directed on the second capstan winch, and the peripheral speed (W2 × D2/2) of the second capstan winch is at least greater than the peripheral speed (W1 × D1/2) of the first capstan winch.Second capstan winch is also wound around abundant circle, makes to skid.
If connecting between the second axle with the second capstan winch is rigidity (this is the priori that the present invention does not get rid of), this can cause the percentage elongation ε of wire rod
fixingfor ((W2 × D2/W1 × D1)-1).If this percentage elongation is greater than the maximum elongation at break A of wire rod
t, so wire rod will rupture.Due to A
tusually not very large (being generally less than 3% for this steel wire envisioned), so need the ratio of control W2 × D2/W1 × D1 well.
Also Problems existing is, purely applies based on friction when applying fixing percentage elongation, and friction can be depended on the surface of wire properties, capstan winch and surface condition, even environmental condition (such as temperature and humidity) and change.On capstan winch, the cooling of wire rod can cause such as thermal contraction, and this can be superimposed upon on the percentage elongation of capstan winch applying.This stablizes (wire rod is immersed in fluid lubricant, capstan winch is cooled and is in steady temperature) and the situation being applied to occur in the wet type drawing machine of percentage elongation by drawing die is contrary with such as rub.
Inventor is surprised to find, and produces shaft coupling by introducing torque between the first capstan winch and the second capstan winch, greatly solves the sensitiveness rubbed and the needs ratio by W2 × D2/W1 × D1 being controlled to the percentage elongation applied.The existence of this shaft coupling can produce constant power at the wire rod advancing to the second capstan winch from the first capstan winch, and need not apply constant percentage elongation again on wire rod.In addition, simple adjustment torque generating device just can apply be greater than 0 and be less than or equal to F on wire rod
fixingany tension force, F
fixingequal AE ε
fixing, wherein, A is sectional area, and E is the modulus of wire rod.
Another benefit is, (W2 × D2/W1 × D1)-1 can be chosen as substantially higher than the percentage of total elongation A of wire rod
t.Below the torque being remained on closed coupling by the torque produced by shaft coupling, do not have the risk online material applying excessive percentage elongation.
Owing to there is torque generating device, the linear velocity of the wire rod on the second capstan winch can be greater than the linear velocity of the wire rod on the first capstan winch.Difference depends on the ratio of W2 × D2/W1 × D1.The linear velocity V2 of the wire rod on the second capstan winch is only less times greater than the linear velocity V1 of the wire rod on the first capstan winch.The ratio of linear velocity V2/V1 equals percentage elongation and adds 1 (ε+1), and percentage elongation is the result of wire rod tensioning.So no matter whether there is wire rod during use, the second linear velocity is all greater than First Line speed.
Along the power path the first capstan winch being mechanically connected to the axle of the second capstan winch, belt or gear and being formed, torque produces shaft coupling can be positioned at different positions.This power path balances with the power path that wire rod is formed during use.The optimum position that torque produces shaft coupling is:
■torque produces shaft coupling between the second axle and the second capstan winch; Or
■torque produces shaft coupling between the first axle and the first capstan winch; Or
■torque produces shaft coupling between the first axle and the second axle; Or
■torque produces shaft coupling between the first capstan winch and the second capstan winch.
It is preferably adjustable that torque produces shaft coupling.Adjustment can be carried out with discrete step or can be carry out continuously.
It is simple friction coupling that available torque produces shaft coupling, wherein, uses normal direction controlled force to be shifted onto on brake disc by friction piece (such as, ring type brake pad).Here problem is the wearing and tearing of brake pad, the heat of generation and be difficult to control produce torque.It is powder coupling that other torques produce shaft coupling, and wherein, torque is transmitted by the powder (normally metal dust) between disc, and disc is pressed together by controlled normal force.If powder is ferromagnetic powder, so the apparent viscosity of powder can be controlled by the magnetic field that such as solenoid (powder coupling) produces.Also fluid axle connector can be used, wherein, several to the fluid transmitting torque between disc (such as, be connected to the even number disc on capstan winch, be connected to the odd number disc on the second axle).The transmission of torque can be due to viscosity B coefficent (viscous fluid shaft coupling), also or by the worm-gear combination (hydrocoupling) of impeller-runner exchanges momentum.
But up to the present, most preferred shaft coupling is magnetic shaft coupling.In magnetic shaft coupling, be fixed on alternating poles magnet ring (the current high performance magnet on such as axle, such as, based on the magnet of neodymium-iron or samarium-cobalt) spaced apart with the alternating poles magnet ring be fixed in corresponding capstan winch drive hole with a gap.When torque is on axle or on capstan winch, this torque can be delivered on capstan winch and axle respectively by magnetic field.The quantity of magnet can determine the smoothness (magnet is more, transmits more smooth and easy) transmitted.Because the magnetic field intensity of permanent magnet reduces fast along with the increase of distance, so the amount of torque transmitted depends on the width in gap.Therefore, the adjustment to the torque produced is achieved by means of simple gap adjustment.Thus do not need to control normal force, this makes magnetic shaft coupling become most preferred shaft coupling.In gap, vacuum or air or fluid or separator disc or axle sleeve can be had.
Substantially have two kinds of designs: axial design, wherein, magnetic field line is parallel to rotating shaft (magnet is arranged on disc in this case); Or radial design, wherein, the magnetic field line of magnet radially.In this case, a magnet ring is arranged in another magnet ring.Radial design is most preferred, because this permission easily installs shaft coupling between axle and capstan winch.
Axle is preferably placed in plane parallel to each other.More preferably, axle is parallel to each other.Alternative or can additionally, preferably axle and capstan winch be arranged such that the wire rod that arrives on capstan winch surface and the wire rod left from capstan winch surface are in square with the axis plane.When axle is parallel, this means that two capstan winches are positioned at same plane, assuming that there is not deflector (such as, sheave or roller) in wire rod path.This makes fixed gear transmission between the shafts more easily realize, because gear can be in the parallel plane plane with capstan winch between axle.These axles can also be coaxial, that is, an axle is in another axle, and wherein, another axle adopts the form of hollow shaft.
Most preferred embodiment is that the first axle and the second axle are integrated and are same axle, that is, only have an axle.Yes saves axle for first advantage of this form.Second advantage is that gearratio W1:W2 is fixed as 1:1 automatically.3rd advantage saves space.4th advantage is that this mode can use filtering equipment to transform the existing machine having capstan winch, such as, and drawing machine and/or coil winder.This single axle can be driven or non-driven.Driven shaft can be such as the driving shaft of bracing wire capstan winch or coil winder capstan winch.Particularly preferred embodiment is this single axle is non-driven.So just can introduce described equipment as separate unit on wire rod path.Then, described equipment is driven by the wire rod be pulled through described equipment, and still plays the effect of defect stripper.
In order to guide wire rod to the second capstan winch from the first capstan winch in this single shaft embodiment, one or more reversing roller can be introduced on wire rod path.A reversing roller is just enough in principle.Via reversing roller, wire rod is directed to the second capstan winch from the first capstan winch.Preferably, introduce reversing roller to make to produce back-flexing on wire rod.Thus along wire rod on wire rod path, bend always in the same direction.Back-flexing can cause distortion on wire rod.
By braking or driving reversing roller, extra tension force can be introduced and control.If drive reversing roller with the linear velocity being greater than W1 × D1/2, so wire rod can be subject to additional tension between the first capstan winch and reversing roller, and the tension force between reversing roller and the second capstan winch can reduce.Alternately, reversing roller can be braked, and in this case, the tension force between reversing roller and the second capstan winch increases, and the tension force between the first capstan winch and reversing roller reduces.
A good alternate embodiment is existence two rollers.First roller is associated with the first capstan winch, and the second roller is associated with the second capstan winch.Two rollers can rotate independently of one another.The function of roller prevents wire rod circle follow-up on capstan winch from interfering with each other.By wearing wire material circle on roller with the capstan winch be associated, the follow-up wire rod circle on single capstan winch extends and can not be interfering with each other during advancing.Become low-angle (but both still in the same plane) extension can be affected further by being placed to by commutation roll shaft with described single axle.
In an additional preferred embodiment, in the wire rod path of described equipment, straightener is introduced.Straightener or " straightener " are a series of grooved rollers substantially in single plane, and wherein, the back-flexing repeatedly in this plane will produce required residual stress on wire rod.Use the object of straightener different: to introduce straightener to make wire rod have certain moulding (moulding is the roughly curvature had when wire rod is freely sagging); Or antithesis, wire rod is straightened.Straightener can also for affecting the residualinternal stress on wire rod.Such as, the compression in known surface can improve the fatigue resistance of wire rod.The content of this respect see US4,612,792.Another purposes is above the summary by grooved roller being placed on reference planes or slightly below and at wire rod or even cord produces and reverse.Straightener normally combinationally uses: different straightener arranged in series, and angulation (such as, vertical) between reference planes, and wire rod is aimed at along the intersection of these planes substantially.
The function of straightener is intricate.But the tension force that the important parameter that straightener correctly works is through the wire rod of straightener must be constant, and preferably controllable.This is realized by the said equipment.By being placed on by straightener in the wire rod path between the first capstan winch and the second capstan winch, the function of straightener is greatly improved and change is less likely to occur.
Wire rod path can be divided into multiple district.Inlet region, namely can extend to the wire rod circle on the first capstan winch on reversing roller (if existence).Wire rod in " inlet region " is with the entrance tension force T of wire rod
1(that is, the tension force before capstan winch) enters, and tension force is elevated to tension force T in " tensioning district "
2.In " tensioning district ", wire rod leaves the first capstan winch and arrives the second capstan winch, thus can be passed through reversing roller.In " tensioning district ", tension force is in and produces the tension force that causes of shaft coupling by torque and be controlled.Finally, wire rod is irised out through the wire rod of " outlet area ".In " outlet area ", wire rod is with tension force T
2to enter and to export tension force T
3out, tension force T is exported
3t can be greater than
2, but be preferably less than T
2.Outlet area starts from wire rod and enters the second capstan winch, to may extend on reversing roller and from the second capstan winch region out.
Straightener can be positioned at inlet region, tensioning district or outlet area.Straightener is preferably positioned at tensioning district, because tension force is stable and controllable in this district.In inlet region, tension force can at T
1with T
2between change, and depend on the position of wire rod circle and the friction between wire rod and capstan winch.Tension force near the wire rod circle of inlet region end can closer to T
2, have close to T at the wire rod circle of inlet region section start
1tension force.When suitably changing, there will be same effect at outlet area: tension force depends on that the position of wire rod circle and friction between wire rod and capstan winch can at T
2with T
3between change.
When straightener is positioned at tensioning district, be necessary to set up reversing roller, so that wire rod is easily through straightener.
According to a second aspect of the invention, a kind of drawing machine comprising above-mentioned filtering equipment is provided.This drawing machine can be dry type drawing machine (lubricating with powdery soap when wire rod is pulled through drawing die), or can be wet type drawing machine (mould in die clamper is immersed in fluid lubricant).In any one situation, after filtering equipment is arranged in last drawing die, (the application, " last drawing die " is the mould with minimum diameter.Synonym is " head mould ") and without any need for lubrication, because the correct work of enough frictions to described equipment is very important.
Particularly preferred embodiment is the towing capstan that the first capstan winch corresponds to after last mould, that is, pull the wire rod of final diameter by the head capstan winch of last mould or head mould.First axle is then corresponding with the axle of head capstan winch.Second capstan winch can be arranged on the second axle, and described second axle is to rotate with the gearratio that the first axle becomes to fix.Or even more preferably, the second capstan winch is also arranged on the axle of the first capstan winch, the axle of described first capstan winch is the axle of a capstan winch.
According to a third aspect of the invention we, claimed a kind of coil winder comprising filtering equipment according to a first aspect of the present invention.Coil winder usually have unwrapping wire section (for exporting wire rod) and winding unit (for by material winds at support).Filtering equipment can easily be retrofitted on existing coil winder.In the especially preferred embodiments, do not need driver to make equipment work.Capstan winch rotates by means of being pulled the wire rod passed through.Certainly, last winding unit must can export enough power, rotates and overcome torque to produce the torque that produces of shaft coupling to make capstan winch.
According to a forth aspect of the invention, a kind of method by using equipment according to a first aspect of the present invention to carry out the defect in filtering steel wire is described.First, such as with tension force T
1by test wire rod be fed to described equipment (from paying out reel, drawing machine or for generation of wire rod or process wire rod any other known devices).Wire rod reels first one and encloses or multi-turn on the first capstan winch.A circle is just completed when the starting point place of wire rod on capstan winch got back to by wire rod.If wire rod exists straightener in path, wire rod so can be guided to pass through described straightener.Then wire rod is advanced according to wire rod path by winding second circle on the second capstan winch or multi-turn.Wire rod is with tension force T
3be drawn out from the second capstan winch.In wire rod path (" tensioning district ") between the first capstan winch and the second capstan winch, wire rod is in tension force T
2under.Here it is " test tension force ", and test tension value can by simply regulate torque produce shaft coupling regulate.
When there is flattening machine, wire rod can less times greater than the test tension level before entering straightener in the test tension level after straightener, because need some power to pass through straightener to pull wire rod.In any case this deviation is all quite little.
According to the test tension level that wire rod produces, different-effect can be realized.If test tension force is greater than the tension force be applied between the further operating period on wire rod, so wire rod is reached the degree be enough to for it by the degree of filtering defect, and this is first favourable application.Example is on the sawline of multi-thread saw, apply 25N tension force.The test tension force of setting 30N can cause filtering defect substantially.Such as, test tension force can be set to and be greater than 20% or 30% or even 40% of broken wires load.If wire rod remains in its elastic range (elastic range of most of wire rod extend to breaking load up to about 70%, the elastic range of some wire rods extend to breaking load up to 80%, and the elastic range of high tensile wire rod extend to breaking load up to 90%), so can not cause special change on wire rod except filtration result.
Second advantageous use is, when (namely test tension force be in the plastic range of wire rod, major part wire rod breaking load more than 70%, more than 80% of the breaking load of some wire rods, and time more than 90% of the breaking load of special-thread), except filtration result, the change of wire rod can be caused.Such as, the moulding of wire rod can change.Another advantageous use changes the residualinternal stress in wire rod.When with straightener in conjunction with time, more easily can realize this modeling effect or residualinternal stress effect, because straightener is by the some parts in wire rod cross section can be brought up to mecystasis by the tensile stress that bending stress is added to applying.
For the correct work of described equipment or method importantly, the quantity of described first one circle or multi-turn and the quantity of described second one circle or multi-turn should be enough to make can not skid between wire rod and the first capstan winch and between wire rod and the second capstan winch during use.Skidding on capstan winch is generally by Euler's friction formula Modling model: if the outlet tension force T at capstan winch place
go outremain and be greater than Τ
entere
-μ θ, wherein, T
enterbe the tension force that wire rod enters capstan winch place, μ is that angle coefficient of friction is (with rad
-1for unit), and θ is total contact angle (in units of radian, a circle corresponds to 2 π, and " contact " is between wire rod and capstan winch), so would not skid.This criterion is applied to the second capstan winch (T
3relative to T
2) and the first capstan winch (T
2relative to T
1) the required number of turns can be obtained.As general rule, the quantity of second one circle or multi-turn is greater than the quantity of first one circle or multi-turn, because outlet tension force is normally minimum.
Because coefficient of friction " μ " should be enough large, in any case so all should avoid using on capstan winch anti-friction agent (lubricant, oil, wax or other).
First one circle or multi-turn can be distributed between the first capstan winch and at least one reversing roller.Because the contact angle between wire rod and capstan winch reduces, the quantity of first one circle or multi-turn must carry out adaptation simultaneously.Alternately or side by side, second one circle or multi-turn can be distributed between the second capstan winch and at least one reversing roller.The quantity of second one circle or multi-turn must carry out adaptation thereupon.
A kind of method of the said equipment that uses comprises the following steps:
Supply metal wire to be measured, such as steel wire;
Reel described wire rod on described first capstan winch first one circle or multi-turn;
Alternatively, guide described wire rod through straightener;
Reel described wire rod on described second capstan winch second one circle or multi-turn;
Described wire rod is extracted out from described equipment;
It is characterized in that:
Regulate described torque to produce shaft coupling, make when described wire rod produces constant test tension force to during described second capstan winch at described wire rod from described first capstan winch.
Described method can supplement following characteristics further: regulate described torque generating device to the torque producing test tension force, described test tension force is at least 20% of the breaking load of described wire rod.
In the above described two methods, the quantity of first one circle or multi-turn and the quantity of second one circle or multi-turn even as big as skidding between wire rod and the first capstan winch and between wire rod and the second capstan winch.
Above-mentioned three kinds of methods of the equipment using the first and second axles to merge have following characteristics further: described first one circle or multi-turn are shared between described first capstan winch and at least one reversing roller described, and described second one circle or multi-turn are shared between at least one reversing roller described and described second capstan winch.
Particularly preferred method is that capstan winch drives by means of being pulled the wire rod passed through.
Accompanying drawing explanation
Fig. 1 depicts the head capstan winch of prior art drawing machine.
Fig. 2 depicts the first preferred embodiment of the present invention.
Fig. 3 depicts the second preferred embodiment of the present invention comprising straightener.
Fig. 4 shows the 3rd preferred embodiment of the present invention, and wherein, the mounting means that torque produces shaft coupling is different.
Fig. 5 shows general work principle of the present invention.
Detailed description of the invention
Fig. 1 schematically depict the head capstan winch on drawing machine 100.Directed and encompass circle at head capstan winch 106 and reversing roller 108 from head mould 104 wire rod 102 out.Head capstan winch is fixedly mounted on driven shaft 124.Reversing roller 108 can also have other functions, such as length metering wheel.After a few circle, wire rod leaves machine through sheave 110.The number of turns is enough to overcome traction wire rod through the power needed for head mould.
Fig. 5 shows in embodiment the equipment 500 with two axles.Wire rod 518 is access arrangement on the first capstan winch 504.Wire rod 518 reels first one and encloses or multi-turn on the first capstan winch.First capstan winch 504 is fixedly connected on the first axle 502.The diameter D1 of the first capstan winch 504 equals 2 × R1.In this example, the first axle 502 is driven.Wire rod 518 advances on the second capstan winch 508 along its path.Wire rod encloses or multi-turn around second one again on the second capstan winch.The diameter D2 of the second capstan winch 508 equals 2 × R1.
Second capstan winch 508 is connected on the second axle 506, and the second axle 506 is fixedly connected on gear 516, and the second axle 506 is driven by gear 516.Gear 516 engages with reversing wheel 512, reversing wheel 512 then with to be fixedly connected on axle 502 and the gear 514 be therefore also fixedly connected on capstan winch 504 engages.Introduce reversing wheel 512, two capstan winches are rotated in the same direction.If gear 514 and 516 directly engages (without reversing wheel), so the wearing to lead and can cause wire rod back-flexing undesirably of wire rod circle.
The number of teeth of the second gear 516 is less than the number of teeth of the first gear 514, and this makes the angular speed W2 of the second axle be greater than the angular speed W1 of the first axle.Even if so D1 equals D2, the condition that W1 × D1 is less than W2 × D2 also can be met.In this embodiment, R1 is chosen to be slightly less than R2 wittingly, and this can make the ratio of W2 × D2/W1 × D1 increase to the elongation at break A of the wire rod 518 when testing
tabove.
The connection of the first capstan winch 504 to the second capstan winch 508 produces shaft coupling 510 such as Friction disc coupling by torque to realize.In this embodiment, shaft coupling is between the second capstan winch and the second axle.Shaft coupling can be regulated to frictional force by augmentativity.The wire rod extending to the second capstan winch from the first capstan winch is subject to carrying out by shaft coupling the test tension force T that controls
2.Local fracture load is lower than T
2any wire rod defect all can be eliminated.Test tension force can such as be measured by wire tension meter (such as, Hans-Schmidt).When demarcate be used for different tension force time, can adopt the adjustment of friction coupling to set test tension force.
Select the number of turns n of second one circle or multi-turn
2, make to skid, that is, T
3(outlet tension force) is greater than T
2× exp (-μ n
22 π).Similarly, the number of turns n of first one circle or multi-turn is selected
1, make can not skid on the first capstan winch, that is, T
2be greater than T
1× exp (-μ n
12 π).T
1the tension force of wire rod in porch.
Fig. 2 shows the more practical embodiment of the filtering equipment 200 implemented on existing drawing machine.First capstan winch 206 (being also the head capstan winch after head mould 204) is fixedly mounted on the motor-driven driving shaft 224 by drawing machine.First one circle of wire rod 202 or multi-turn are worn and are led on reversing roller 208, and capstan winch 206 is shared 4 with reversing roller 208 and enclosed.Wire rod advances at the 5th circle the second capstan winch 212 be arranged on same driving shaft 224.Second capstan winch is installed on the shaft 224, has bearing 230 between the second capstan winch and this axle.Therefore, W1 equals W2, because only there is an axle.From then on start, wire rod encloses around about 12 at the second capstan winch 212 and the second reversing roller 208 ' upper separating.Second reversing roller 208 ' rotates independent of the first reversing roller 208.Second capstan winch 212 produces shaft coupling 214 by torque and is connected on the first capstan winch 206, and it is the radial magnetic coupling easily regulated in this instance that torque produces shaft coupling, has division indicator, makes it possible to reliably set level of torque.In this embodiment, torque generating device is positioned between the second axle (identical with the first axle) and the second capstan winch.
In an alternative embodiment as shown in figure 3, the basis of the embodiment of Fig. 2 adds flattening machine 318, flattening machine is in the tensioning district (that is, wire rod advances to the region of the second capstan winch from the first capstan winch) in wire rod path.In accompanying drawing 1-4, similar part similar units and tens represent.Introduce another reversing roller 316, to allow straightener 318 to be convenient to install.Wire rod 302 through straightener keeps constant test tension force.In addition, the back-flexing repeatedly of straightener causes extra bending stress in wire rod, and this even more contributes to the defect point on filtering wire rod.
In the diagram, the alternative location that torque produces shaft coupling is illustrated.Equipment or single shaft are arranged, wherein, same axle 424 shared by both the first capstan winch 406 and the second capstan winch 412.Now, the second capstan winch 412 is fixedly connected on axle 424, and the first capstan winch 406 is rotatably connected on axle 424 by means of bearing 430.In this embodiment, torque produces shaft coupling 414 between the first capstan winch and the second capstan winch.
In above-mentioned different embodiments, these capstan winches can also by with tension force T
3drive from the wire rod of the second capstan winch pull-out, instead of by driving the first axle to drive.In fact, skid to prevent wire rod if the second capstan winch exists enough number of turns, drive the tension force T of described equipment
3can lower than the test tension force T caused
2(being set by magnetic shaft coupling 214,314,414).It is higher that torque produces shaft coupling setting, tension force T
2larger, and the more number of turns must be wound around on the second capstan winch 412.Especially, the embodiment according to Fig. 4 is suitable as stand-alone device, and wherein, power is entered by the second capstan winch and produces shaft coupling by torque and is delivered to the first capstan winch.
Reference numerals list:
210,310,410 sheaves
300,400 filtering equipments
308,408 reversing rollers
308 ', 408 ' second reversing roller
306 capstan winches
312 second capstan winches
324 driving shafts
330 bearings
402 wire rods
304,404 head moulds
Claims (15)
1., for an equipment for the defect in filtering metal wire, comprising:
First capstan winch, is arranged on the first axle; And
Second capstan winch, is arranged on the second axle,
Wherein, during use, the excircle speed of described second capstan winch is greater than the excircle speed of described first capstan winch,
It is characterized in that,
Described first capstan winch is fixedly secured on described first axle and/or described second capstan winch is fixedly secured on described second axle, and described second capstan winch connects with described first capstan winch by means of torque generation shaft coupling simultaneously.
2. equipment according to claim 1, wherein, described torque produces shaft coupling between described second axle and described second capstan winch or between described first axle and described first capstan winch.
3. equipment according to claim 1, wherein, described torque produces shaft coupling between described first axle and described second axle.
4. equipment according to claim 1, wherein, described torque produces shaft coupling between described first capstan winch and described second capstan winch.
5. the equipment according to any one of Claims 1-4, wherein, the torque that described torque generation shaft coupling produces is adjustable.
6. equipment according to claim 5, wherein, it is the one selected from the group comprised based on the shaft coupling rubbed, powder coupling, magnetic shaft coupling, fluid axle connector, hydrocoupling that described torque produces shaft coupling.
7. the equipment according to any one of Claims 1-4, wherein, described first axle is parallel with described second axle.
8. equipment according to claim 7, wherein, described first axle and described second axle coaxial.
9. equipment according to claim 8, wherein, described first axle is identical with described second axle, and wherein, the diameter D2 of described second capstan winch is greater than the diameter D1 of described first capstan winch, described equipment also comprises one or more reversing roller, is directed to described second capstan winch for wire rod from described first capstan winch.
10. equipment as claimed in claim 9, wherein, during use, a described reversing roller is driven or is braked, to control the tension level on the wire rod between described first capstan winch and a described reversing roller.
11. equipment according to claim 9, wherein, a described reversing roller is associated with described first capstan winch, and the second reversing roller is associated with described second capstan winch, and a described reversing roller and described second reversing roller can independently rotate.
12. equipment as described in any one of Claims 1-4, also comprise the straightener be arranged in the wire rod path of described equipment.
13. equipment according to claim 12, wherein, described straightener is arranged on from described first capstan winch to the wire rod path of described second capstan winch.
14. 1 kinds of drawing machines, comprise the equipment according to any one of claim 1 to 13, and wherein, described first capstan winch is the towing capstan after last mould on drawing machine.
15. 1 kinds of coil winders, comprise the equipment according to any one of claim 1 to 13, wherein, described capstan winch can by be pulled through wire rod drive.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP11180782.2 | 2011-09-09 | ||
| EP11180782 | 2011-09-09 | ||
| PCT/EP2012/067151 WO2013034526A1 (en) | 2011-09-09 | 2012-09-04 | An apparatus for filtering out defects in metal wires |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103813867A CN103813867A (en) | 2014-05-21 |
| CN103813867B true CN103813867B (en) | 2015-12-02 |
Family
ID=46763105
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201280043492.1A Active CN103813867B (en) | 2011-09-09 | 2012-09-04 | For the equipment of the defect in filtering metal wire |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP2753438B1 (en) |
| JP (1) | JP6007252B2 (en) |
| KR (1) | KR101912976B1 (en) |
| CN (1) | CN103813867B (en) |
| WO (1) | WO2013034526A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103191939B (en) * | 2013-04-11 | 2016-06-01 | 常州贝斯塔德机械科技有限公司 | For the towing mechanism in drawing wire machine |
| FR3051696B1 (en) * | 2016-05-27 | 2018-06-15 | Compagnie Generale Des Etablissements Michelin | DEVICE AND METHOD FOR TRACTING AND DRESSING A METAL MONOFILAMENT |
| CN108746240A (en) * | 2018-04-12 | 2018-11-06 | 镇江耐丝新型材料有限公司 | A kind of undamaged wire defect filter device and defect filter method |
| CN112570479B (en) * | 2020-11-11 | 2023-02-10 | 山东大业股份有限公司 | Straightening device used before surface treatment of tire bead steel wire |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87202373U (en) * | 1987-02-28 | 1988-01-06 | 机械工业部上海电缆研究所 | Optic fibre intensity screening equipment |
| CN2680638Y (en) * | 2004-02-09 | 2005-02-23 | 广州日滨科技发展有限公司 | Elevator traction machine experimental bench |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4832510B1 (en) * | 1970-10-31 | 1973-10-06 | ||
| JPS4832509B1 (en) * | 1970-10-31 | 1973-10-06 | ||
| GB2092629B (en) | 1981-02-06 | 1984-09-19 | Bekaert Sa Nv | Improvements in fatigue resistant cables |
| JPH11342415A (en) * | 1998-04-03 | 1999-12-14 | Tokyo Seiko Co Ltd | Wire manufacturing method and equipment |
| JP2000167618A (en) * | 1998-12-04 | 2000-06-20 | Kanai Hiroaki | Method for drawing wire for wire saw and drawing device |
| JP2007118067A (en) * | 2005-10-31 | 2007-05-17 | Kanai Hiroaki | Method and apparatus for manufacturing wire material for steel cord |
-
2012
- 2012-09-04 WO PCT/EP2012/067151 patent/WO2013034526A1/en active Application Filing
- 2012-09-04 EP EP12753499.8A patent/EP2753438B1/en not_active Not-in-force
- 2012-09-04 KR KR1020147005959A patent/KR101912976B1/en active IP Right Grant
- 2012-09-04 JP JP2014528944A patent/JP6007252B2/en active Active
- 2012-09-04 CN CN201280043492.1A patent/CN103813867B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87202373U (en) * | 1987-02-28 | 1988-01-06 | 机械工业部上海电缆研究所 | Optic fibre intensity screening equipment |
| CN2680638Y (en) * | 2004-02-09 | 2005-02-23 | 广州日滨科技发展有限公司 | Elevator traction machine experimental bench |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20140073497A (en) | 2014-06-16 |
| JP6007252B2 (en) | 2016-10-12 |
| EP2753438B1 (en) | 2016-03-30 |
| WO2013034526A1 (en) | 2013-03-14 |
| KR101912976B1 (en) | 2018-10-29 |
| CN103813867A (en) | 2014-05-21 |
| EP2753438A1 (en) | 2014-07-16 |
| JP2014526381A (en) | 2014-10-06 |
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Effective date of registration: 20170216 Address after: No. 358 East Binjiang Road, Jiangyin, Jiangsu, China Patentee after: Jiangyin Bekaert Alloy Materials Co., Ltd. Address before: Belgium, Graham Weaver Patentee before: NV Bekaert SA |